JP2012112331A - Pump fixing structure and heat source machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pump fixing structure facilitating attaching-detaching work of a pump even when only a little space can be secured on the periphery of a pump installation place of the casing inside and capable of firmly installing the pump in a casing, and a heat source machine for fixing the pump to the casing inside by such a pump fixing structure.SOLUTION: This pump fixing structure includes at least an attaching-detaching base part 17 integrally installable on the pump 11, a base part 16 integrally installable in the casing or integrally formable with the casing, and a connecting tool 18 for connecting the attaching-detaching base part 17 and the base part 16. At this time, an attaching-detaching base side fixing part of the attaching-detaching base part 17 and a base side fixing part of the base part 16 are engaged with each other, and the attaching-detaching base part 17 can be put in a temporary installing state of being separably installed in the base part 16. Further in the temporary installing state, the attaching-detaching base part 17 and the base part 16 can be transferred to an unseparably installing regular installing state by installing the connecting tool 18 in the attaching-detaching base part 17 and the base part 16.

Description

  The present invention relates to a pump fixing structure for mounting a pump inside a housing, and also relates to a heat source apparatus in which the pump is mounted by such a pump fixing structure.

  A bath circulation circuit that raises the temperature of hot water in the bathtub by circulating hot water between the bathtub and the heat exchanger, and a heating medium through the heating medium by circulating a heat medium between the heating appliance and the heat exchanger A heat source machine having a heating circulation circuit for supplying heat is widely known.

  In a heat source machine having such a circulation circuit, a pump for circulating hot water or a heat medium in the circulation circuit is usually built in the housing. Since such a pump vibrates during operation, it may come off unless firmly attached. Moreover, since such a pump is heavy, if it falls off from an attachment position, a housing wall and other members may be damaged. Therefore, it is necessary to attach such a pump firmly. On the other hand, it is desirable that such a pump be easily attached and detached for maintenance such as repair and replacement.

  For example, an attachment structure disclosed in Patent Document 1 is known as a structure for easily attaching a circulation pump in a housing (exterior body). In the mounting structure disclosed in Patent Document 1, a support base is provided in a housing, and a circulation pump is mounted in a lower space of the support base. At this time, an opening is formed on one side surface of the support base, and a window hole is formed on the other side surface that intersects the side surface on which the opening is formed. These openings and window holes both communicate with the lower space of the support and the outside. In addition, the window hole is exposed to the outside when one of the side plates of the housing is removed. As a result, in the mounting structure disclosed in Patent Document 1, when two of the side peripheral plates of the housing are removed and a member in the vicinity of the opening of the support base is taken out, the hand is extended from the opening and the window hole. The pump can be removed. That is, in the mounting structure disclosed in Patent Document 1, it is possible to easily replace the pump by making the structure easy to reach the pump.

Japanese Patent No. 3691210

By the way, in recent years, there is a market demand for downsizing a heat source device, and a heat source device employing a small casing has been developed. However, when the housing of the heat source machine is downsized and the width and height are reduced, the place for installing the pump inside the housing is limited. Therefore, a wide space cannot be secured around the installation site of the pump, and other built-in objects inside the housing may be arranged near the installation site of the pump. Such built-in objects include those that cannot be easily moved or disassembled (for example, a header portion of a heat exchanger). In other words, things that are virtually impossible to move from around the pump installation location during maintenance may be located around the pump installation location.
In such a case, when performing the attachment / detachment work of the pump for maintenance, a space for inserting an operator's hand and a space for moving the pump cannot be secured sufficiently, and the attachment / detachment work becomes very difficult. There was a problem.

  Accordingly, the present invention provides a pump fixing structure in which the pump can be easily attached and detached even when only a small space can be secured around the pump installation location inside the housing, and the pump can be firmly attached to the housing. It is an issue to provide. Another object of the present invention is to provide a heat source machine in which the pump is fixed inside the housing by such a pump fixing structure.

  The invention according to claim 1 for solving the above-mentioned problem is a pump fixing structure for fixing the pump in a housing having a pump therein, and includes an attaching / detaching base part, a base part, and a connection tool. At least, the detachable base part can be integrally attached to the pump, and includes a detachable base side latching part; the base part includes a base side latching part; By engaging the stop portion and the base side latching portion, the detachable base portion can be in a temporarily attached state in which the base portion is separably attached. A fixing structure for a pump, characterized in that, by attaching a connecting tool to the detachable base part and the base part, it is possible to shift to the main mounting state in which the detachable base part and the base part are attached inseparably. is there.

In the pump fixing structure of the present invention, the pump and the detachable base part are integrally attached, the base part is arranged on the housing side, and the detachable base part and the base part are detachably attached. can do. And from that state, by fixing one connecting tool to each of the detachable base part and the base part, it is possible to shift to the main attachment state in which the detachable base part and the base part are attached inseparably.
That is, it is possible to perform an operation for firmly attaching the pump to the casing in a state where the pump and the detachable base are supported by the base on the casing side. Therefore, it is not necessary for the operator to carry out the installation work while holding the pump in his / her hand, and a large space for the operator to insert his / her hand around the pump installation position is not required when installing the pump. Therefore, the pump can be easily attached to the housing even if there is only a small space around the place where the pump is installed. Further, when fixing the detachable base part to the base part, the detachable base side latching part and the base side latching part are engaged with each other, and further, the connection tool is attached to the detachable base part and the base part. Fix it. Therefore, compared to the case where any one of the fixing means is used, it is possible to perform a firm attachment that is difficult to come off due to vibration.
Even when the pump is removed from the housing, the pump and the detachable base portion can be completely separated from the housing and the base portion after the connection tool is removed from the main attachment state to make a temporary attachment state. In this case as well, it is not necessary for the operator to remove the pump while supporting the pump by hand to prevent the pump from dropping downward. Does not require a large space for insertion. The pump can be easily removed even if there is only a small space around the place where the pump is installed.

  According to a second aspect of the present invention, either one of the attachment / detachment base side latching portion and the base side latching portion is a projection, and the other is a notch, and the projection is inserted into the notch. 2. The pump fixing structure according to claim 1, wherein the attachment / detachment base side latching portion and the base side latching portion are engaged with each other.

  According to such a configuration, the detachable base portion and the base portion can be separably attached by a relatively simple operation of hooking the protrusion on the notch. That is, it becomes easy to make the attachment and detachment base part and the base part into a temporarily attached state, and the attachment and detachment work with respect to the housing of the pump can be simplified.

  According to a third aspect of the present invention, in the fully attached state, the base side latching portion and the connection tool are respectively in contact with both end portions of the detachable base portion, and in the temporary attachment state, the detachable base portion. Is inclined downward from one end of the base side latching portion toward the other end, and the detachable base portion is inclined downward with respect to the base side locking portion. 3. The pump fixing structure according to claim 1, wherein the engagement between the detachable base side latching part and the base side latching part can be released by moving the base side latching part relatively.

According to such a configuration, when the connection tool is removed and the transition is made from the main mounting state to the temporary mounting state, one side of both end portions of the mounting / dismounting base portion is at a lower position than the other pair, and the mounting / dismounting base portion together with the pump. Inclined state. Moreover, the detachable base part can be detached from the base part by moving the detachable base part downward in the tilt direction relative to the base side locking part.
That is, since the pump and the detachable base are inclined, it is easy to move them in the removal direction (inclination direction). In addition, in order to move the detachable base part and the pump downward in the inclined direction and remove them, the space where the connector is located in the fully attached state should be used as a space for the pump and the detachable base part to move during removal. Can do. Furthermore, when other built-in objects are located above the pump arrangement position, it is easy to move the pump and the detachable base while avoiding them. From these things, even if a pump installation place and its periphery are a narrow space, a removal operation | work can be implemented easily.

  According to a fourth aspect of the present invention, the connection tool is attached to each of the detachable base part and the base part via a fastening element, and in the fully attached state, all of the fastening elements are all attached. The pump fixing structure according to any one of claims 1 to 3, wherein the pump fixing structure is located on any one side of the directions, and the attaching / detaching directions of all the fastening elements include the same or the same component. It is.

Here, the fastening element is a superordinate concept such as a screw or a pin.
According to this configuration, when the connecting tool is attached to each of the detachable base part and the base part, the fastening element is located on one side. And the attachment / detachment direction of these fastening elements is the same.
In this way, when attaching and detaching the pump from the housing, it is only necessary to perform attachment and detachment work with the fastening elements on one side of the fixing member (attachment base part, base part, connection tool, etc.) in various directions. Therefore, it is not necessary to attach / detach the fixing member. In other words, the operator inserts his / her hands into various parts of the space surrounding the pump and the fixing member in the enclosure, or turns the hand so as to bypass the pump and the fixing member, etc. There is no need to work. Therefore, even if the place where the pump is installed and its periphery is a narrow space, the detaching operation can be easily performed.

  The invention according to claim 5 is characterized in that the engagement / disengagement direction of the attachment / detachment base side latching portion and the base side latching portion and the attachment / detachment direction of the fastening element are the same or include components in the same direction. The pump fixing structure according to claim 4.

According to this configuration, the mounting direction when the pump and the detachable base part are attached to the base part, and the mounting direction of the fastening element when the pump and the detachable base part are firmly fixed to the base part by the fastening element Are the same (or substantially the same). Moreover, the removal direction when separating the pump and the detachable base part from the base part and the removal direction of the fastening element when shifting from the main attachment state to the temporary attachment state are also the same (or substantially the same).
As a result, a space that connects the inside and outside of the housing, and serves as a passage for the pump and the attachment / detachment base when the pump is attached to and detached from the housing, a space for attaching and detaching the fastening elements, The space through which the fastening element passes when the fastening element is attached and detached can be provided. Accordingly, since a relatively wide surface can be used for the attaching / detaching operation of the fastening element, the attaching / detaching operation of the fastening element is facilitated, and the attaching / detaching operation of the pump or the like is also facilitated.

  In the invention according to claim 6, the base portion is a member independent of the casing, and includes a flat bottom plate portion and a standing wall portion projecting substantially perpendicularly from the bottom plate portion. A cut and raised portion cut and raised from the bottom plate portion, and an engagement hole portion adjacent to the cut and raised portion are formed, and the cut and raised portion protrudes substantially vertically from the bottom plate portion and faces the standing wall portion, The engagement hole portion is a through-hole penetrating the bottom plate portion, and the base side latching portion is formed on the front end portion side in the protruding direction of the standing wall portion, and the detachable base portion is a flat plate-like bottom plate portion, A peripheral wall portion that protrudes substantially perpendicularly from the bottom plate portion, the attachment / detachment base side latching portion is formed on the peripheral wall portion, and the connector includes a main body portion and a portion that protrudes downward from the main body portion. And can be self-supporting by the downward projecting part, with respect to the detachable base part and the base part 6. The connecting tool according to claim 1, wherein when the connecting tool is attached, a lower end portion of the connecting tool is inserted into the engaging hole, the connecting tool and the cut-and-raised part are in contact with each other, and the connecting tool is in an upright state. The pump fixing structure according to any one of the above.

According to this configuration, the attachment / detachment base is attached to the tip of the standing wall that protrudes in the height direction from the bottom plate of the base, and the connection tool is attached to the base and the attachment / detachment base located vertically in the vertical direction. Install. And when attaching a connection tool, the lower end part of a connection tool is penetrated by the engagement hole part, a connection tool and a raising part contact, and also a connection tool will be in the upright state.
Accordingly, the connector can be positioned simply by arranging the connector on the base portion. That is, the lower end portion of the connection tool is inserted into the engagement hole portion, and the connection tool and the cut-and-raised portion are brought into contact with each other, thereby positioning the base portion in the front-rear direction and the left-right direction. And when the connection tool becomes independent, it is positioned in the height direction of the base part. Therefore, since it is not necessary to attach the connector while aligning it, it is easy to attach the connector.

  According to a seventh aspect of the present invention, the base portion includes a plate-like engagement guide portion, and the engagement guide portion protrudes upward in the vertical direction of the base portion. The engaging guide portion is positioned above the detachable base side latching portion and the base side latching portion when the latching portion and the base side latching portion are engaged with each other. The pump fixing structure according to any one of 1 to 6.

  According to such a configuration, when the detachable base part is attached to the base part, it is possible to prevent the attachment of the detachable base part and the base part at an incorrect position by the engagement guide. Therefore, the accuracy of the mounting operation can be increased.

  According to an eighth aspect of the present invention, the detachable base portion includes a flat bottom plate portion and a plurality of peripheral wall portions projecting substantially perpendicularly from the bottom plate portion, and one of the peripheral wall portions includes the detachable base side hook. A stop portion is formed, a window portion is formed on at least one of the peripheral wall portions, and the window portion is a notch or a through-hole, and the detachable base side hook portion and the base side hook portion are When the peripheral wall portion where the window portion is formed is viewed from the outside, the engaging portion of the detachable base side latching portion and the base side latching portion is exposed from the window portion. The pump fixing structure according to any one of 1 to 7.

  According to such a configuration, even when the position where the attachment / detachment base side latching portion and the base side latching portion engage during installation is a blind spot from the operator, the attachment / detachment base side latching portion and the attachment / detachment base side latch A stop part can be visually observed from a window part. Therefore, the attachment / detachment base side latching portion and the attachment / detachment base side latching portion can be reliably engaged even in a narrow space where a large number of members are arranged, so that the attachment work can be facilitated.

  The invention according to claim 9 is a heat source machine that heats hot water by burning fuel supplied from the outside and supplies heat via the hot water, and includes a housing having a space inside and a circulation pump. A bath circulation circuit that takes out hot water in the bathtub and passes it through the heat exchanger and then returns to the bathtub again, and a heating circulation circuit that circulates the heat medium, and the circulation pump is hot water in the bath circulation circuit. Or the heating medium of the heating circulation circuit is circulated, and the circulation pump is fixed to the body wall through the pump fixing structure according to any one of claims 1 to 8. It is a heat source machine.

  According to a tenth aspect of the present invention, the heat exchanger is close to the circulation pump, and an inner peripheral wall of the housing or a structure built in the housing is close to the side of the circulation pump. The heat source device according to claim 9, wherein the heat source device is a heat source device.

  In the heat source apparatus of the present invention, since the circulation pump is fixed in the housing with the pump fixing structure according to any one of claims 1 to 8, it is easy to attach and detach the circulation pump during maintenance. Further, when the circulation pump is fixed to the housing, it can be firmly attached.

  Since the pump fixing structure of the present invention can be attached and detached once it is temporarily attached to and detached from the housing, it is not necessary to stabilize the position of the pump by the operator's hand during the attachment and detachment work. Therefore, there is an effect that the pump can be easily and detachably attached even when there is only a small space around the place where the pump is installed. Also, when fixing the pump to the housing, the pump is firmly attached because it is fixed by two means: the means for engaging the attaching / detaching base side hooking part and the base side hooking part and the means for attaching the connector. There is an effect that can be.

It is a lineblock diagram showing the heat source machine concerning a 1st embodiment of the present invention, and shows the state where the front board part of the frame was removed. It is a perspective view which shows the circulation pump and fixing member of FIG. It is a disassembled perspective view which shows the circulation pump and fixing member of FIG. It is a perspective view which shows the base part of FIG. It is the perspective view which looked at the base part of FIG. 4 from A direction. It is the top view which looked at the base part of FIG. 4 from the B direction. It is the right view which looked at the base part of FIG. 4 from the C direction. It is the rear view which looked at the base part of FIG. 4 from the D direction. It is a perspective view which shows the attachment-detachment base part of FIG. It is the top view which looked at the attachment-detachment base part of FIG. 9 from the A direction. It is the perspective view which looked at the attachment-detachment base part of FIG. 9 from the B direction. It is a perspective view which shows the connection tool of FIG. It is the perspective view which looked at the connector of FIG. 12 from the A direction. It is the side view which looked at the connector of FIG. 12 from the B direction. It is the partially expanded view which expanded the peripheral part of the circulation pump of FIG. 1, and a fixing member. It is a front view which shows the state which removed the movable members, such as a pipe, from the peripheral part of the circulation pump of FIG. 15, and a fixing member. It is a figure which shows the state of the fixing member of FIG. 15, and is a partially transparent perspective view which saw through the circulation pump part. It is a partially transparent perspective view which shows the state which removed the connection tool from the state of FIG. It is a partially transparent perspective view which shows the state which removed the attachment or detachment base part from the state of FIG. It is a perspective view which shows the base part of 2nd Embodiment. It is the side view which looked at the base part of FIG. 29 from the A direction. It is the rear view which looked at the base part of FIG. 29 from the B direction. It is a perspective view which shows the attachment-detachment base part of 2nd Embodiment. It is explanatory drawing which shows the positional relationship of a protrusion, a notch, and an engagement guide part when attaching the attachment-detachment base part of 2nd Embodiment to a base part, Comprising: (a) is an attachment-detachment base part on a base part Is shown in a state where the detachable base is attached to the base. It is a front view which shows the fixing member of 2nd Embodiment. It is a perspective view which shows the fixing structure of the pump of embodiment different from FIG. It is a perspective view which shows the fixing structure of the pump of embodiment different from FIG.

Hereinafter, although a 1st embodiment of the present invention is described in detail, the present invention is not limited to these examples.
In the following description, the vertical and horizontal positional relationship will be described based on the normal installation state unless otherwise specified.

  As shown in FIG. 1, the heat source unit 1 includes a combustion unit 3, a primary heat exchanger 4 that mainly recovers sensible heat, and a secondary heat exchanger 5 that mainly recovers latent heat in an internal space of the housing 2. And built-in. That is, the heat source unit 1 is a latent heat recovery type heat source unit.

The casing 2 includes a top plate portion 2a, a bottom plate portion 2b, two side wall portions 2c and 2d, a front plate portion (not shown), and a back plate portion 2e, all of which are rectangular plates. These are enclosed by the top plate part 2a, the bottom plate part 2b, the two side wall parts 2c and 2d, and the back plate part 2e to form a box body whose front is opened, and the front plate part covers the open part of the front. It can be installed as follows.
When the heat source device 1 is used, the front plate portion is attached, and when performing maintenance or the like, the front plate portion is removed and used. When the front plate portion is removed, the top plate portion 2a, the bottom plate portion 2b, the two side wall portions 2c and 2d, the front plate portion (not shown), and the internal space formed in the portion surrounded by the back plate portion 2e The built-in object built in the internal space is exposed.

  Inside the housing 2, the combustion unit 3 is provided at a position from the side wall 2 c near the top plate 2 a, and the primary heat exchanger 4 is positioned below the combustion unit 3. Furthermore, there is a storage case 7 for storing the secondary heat exchanger 5 below the primary heat exchanger 4, and the silencer 8 is located above the storage case 7 and to the side of the primary heat exchanger 4. . And the space which connects each inside of the primary heat exchanger 4, the storage case 7, and the muffling part 8 from the inside of the combustion part 2 is formed, and the combustion gas generated in the combustion part 3 can flow.

  When the heat source unit 1 is operated, the combustion gas generated in the combustion unit 3 flows to the primary heat exchanger 4, the storage case 7, and the silencer 8, and is discharged to the outside through the exhaust port 8 b of the silencer 8. On the other hand, hot water supplied from the outside is supplied to the secondary heat exchanger 5 via a water inlet pipe (not shown). And hot water flows into the primary heat exchanger 4 through the secondary heat exchanger 5. At this time, hot water is heated by the heat of the combustion gas recovered by the secondary heat exchanger 5 and the primary heat exchanger 4. And the heated hot water flows out from the water outlet of the primary heat exchanger 4, and is supplied toward the curan, a bathtub, etc. used as a hot-water supply destination.

  Moreover, this heat source machine 1 is provided with the bath circulation circuit (not shown) which takes in and circulates the hot water of the bathtub (not shown) installed outside. The bath circulation circuit is a circuit that circulates hot water in the bathtub via the primary heat exchanger 4 described above, and a return side channel that sends hot water to the bathtub, and a return side that returns hot water from the bathtub to the primary heat exchanger 4 It is comprised by the flow path. A circulation pump 11 (pump) is provided in the return side flow path (the side from the bathtub toward the primary heat exchanger 4).

  When the circulation pump 11 is activated, the hot water in the external bathtub is introduced into the primary heat exchanger 4 and returned from the primary heat exchanger 4 to the external bathtub. That is, the circulation pump 11 has the same structure as a conventionally known circulation pump that pumps hot water toward the primary heat exchanger 4 and circulates the hot water in the bath circulation circuit.

  Here, the circulation pump 11 is attached to the internal space of the housing 2 via the fixing member 12. The fixing member 12, which is a characteristic component of the present invention, will be described in detail below.

As shown in FIGS. 1 to 3, the fixing member 12 includes a base portion 16, a detachable base portion 17, and a connection tool 18. The fixing member 12 has the base portion 16 integrally attached to the bottom plate portion 2 b of the housing 2, and the detachable base portion 17 is integrally attached to the base portion 16 with the circulation pump 11 being integrally attached to the removable base portion 17. The circulation pump 11 can be fixed to the housing 2 by being attached.
At this time, as shown in FIG. 2, the fixing member 12 arranges the connection tool 18 between the base part 16 and the detachable base part 17, and each of the connection tool 18, the base part 16, and the detachable base part 17. Can be screwed together with screws 19 (fastening elements), so that the base portion 16, the detachable base portion 17, and the connecting portion 18 can be integrally attached. Thereby, since the detachable base part 17 and the base part 16 can be firmly attached, the circulation pump 11 and the housing 2 can be firmly fixed.
The screw 19 is not particularly limited, but a screw that does not use a female screw such as a tapping screw can be preferably used.

  The base portion 16 is manufactured by punching a thin metal plate and then bending it. As shown in FIG. 4, the base plate portion 30 has a substantially rectangular plate shape, and one end in the longitudinal direction of the bottom plate portion 30. The external shape provided with the standing wall part 31 extended in the top-bottom direction from a part is a substantially L-shaped member.

  As shown in FIGS. 4 and 5, a bottom plate side wall portion 32, two base mounting through holes 33 and 33, a cut and raised portion 34, and an engagement hole portion 35 are formed in the bottom plate portion 30.

  The bottom plate side wall portion 32 is a substantially rectangular plate-like portion formed by bending one side end portion of the bottom plate portion 30 in the short side direction, and is raised upward in the vertical direction. The bottom plate side wall portion 32 is provided over the entire one side end portion of the bottom plate portion 30 in the short direction, and intersects the bottom plate portion 30 substantially perpendicularly.

  The two base mounting through-holes 33 and 33 are end portions (hereinafter referred to as end portions on the standing wall portion 31 side) that are paired with end portions (hereinafter referred to as standing wall portion 31 side ends) where the standing wall portions 31 are located. All of the openings are circular and pass through the back surface from the front surface of the bottom plate portion 30. Specifically, a first base mounting through-hole 33 is formed near the center of the bottom plate portion 30 in the short direction, and between the first base mounting through-hole 33 and the bottom plate side wall portion 32. Thus, a second base mounting through hole 33 is formed at a position slightly closer to the bottom plate side wall 32.

The cut and raised portion 34 is located between the two base mounting through holes 33 and 33 and the standing wall portion 31 and in the vicinity of the two base mounting through holes 33 and 33. It is a rectangular plate-shaped part that is erected upward by cutting a part upward. And the corner | angular part located in the height direction front-end | tip of the cut-and-raised part 34 becomes a rounded shape. At this time, the cut-and-raised part 34 protrudes substantially vertically from the bottom plate part 30 toward the Tenchi region improvement side.
Here, the width direction of the cut and raised portion 34 and the short direction of the bottom plate portion 30, the thickness direction of the cut and raised portion 34, and the longitudinal direction of the bottom plate portion 30 are substantially the same direction. A through-hole 36 for attaching a connector is provided at a substantially central portion in the width direction near the upper end portion (tip in the protruding direction) of the cut and raised portion 34. As shown in FIG. 4 and FIG. 5, the through hole 36 for attaching the connector has a circular opening shape and is a through hole that penetrates the cut and raised portion 34 in the thickness direction.

As shown in FIGS. 4 and 5, the engagement hole portion 35 is a through-hole penetrating from the front surface of the bottom plate portion 30 to the back surface, and is provided adjacent to the cut-and-raised portion 34. And the opening shape of the engagement hole part 35 is a substantially concave shape, as FIG. 6 shows.
More specifically, the engagement hole portion 35 is formed of a base end portion 35a having a substantially rectangular opening and two long hole portions 35b and 35b having openings extending so as to protrude from the base end portion 35a. Yes. The opening shape of the long hole portion 35b is a combination of a rectangular portion and a semicircular portion.
Here, the corner portion of the inner peripheral surface of the base end portion 35a is rounded at the end portion located at a position from the standing wall portion 31 in the short side end portion of the base end portion 35a.
When attention is paid to the other end portion in the short side direction of the base end portion 35a and the end portion on the cut-and-raised portion 34 side, it is long at both ends in the longitudinal direction of the base end portion 35a (longitudinal direction of the engagement hole portion 35). Each of the hole portions 35b and 35b is continuous, and the other portion is continuous with the cut and raised portion 34.
The two long hole portions 35b extend in the direction away from the base end portion 35a along the short side direction (longitudinal direction of the bottom plate portion 30) of the base end portion 35a. At this time, these two long hole portions 35 b extend toward the “end portion on the base mounting through hole 33 side” of the bottom plate portion 30, and the end portion in the extending direction is rounded. That is, the semicircular portion of the opening of the long hole portion 35b is positioned at the distal end portion in the extending direction.

  Here, the two long hole portions 35 b and 35 b are continuous with both end portions in the width direction of the cut and raised portion 34. Specifically, a rectangular portion of the openings of the two long hole portions 35 b and 35 b is continuous with the cut and raised portion 34. Of the openings of the two long hole portions 35b, the semicircular portion is located closer to the “end on the base mounting through hole 33 side” than the cut and raised portion 34. More specifically, of the four side surfaces 34a and 34b that are opposed to each other in the thickness direction among the four side surfaces of the cut-and-raised portion 34, one side surface 34b is continuous with the proximal end portion 35a of the engagement hole portion 35. The other side surface 34 a is continuous with the bottom plate portion 30. In addition, the two side surfaces 34c and 34d at positions facing each other in the width direction of the cut-and-raised portion 34 have the openings of the two long hole portions 35b and 35b continuous with the rectangular portion, respectively. Therefore, the cut-and-raised part 34 is in a state surrounded on three sides by the engagement hole part 35. At this time, since the two long hole portions 35b, 35b extend toward the “end on the base mounting through hole 33 side”, the openings of the two long hole portions 35b, 35b are semicircular portions. Is located closer to the “end on the base mounting through hole 33 side” than the side surface 34 a continuous with the bottom plate portion 30 of the cut and raised portion 34.

  As described above, the standing wall portion 31, the bottom plate side wall portion 32, and the cut-and-raised portion 34 of the bottom plate portion 30 are all projected from the bottom plate portion 30 upward in the vertical direction. At this time, the length in the protruding direction becomes longer in the order of the bottom plate side wall portion 32, the cut and raised portion 34, and the standing wall portion 31.

As shown in FIGS. 4 and 5, the standing wall portion 31 includes a standing wall portion main body 37, a protruding portion 38 (base side locking portion), a support base portion 39, and a standing wall side wall portion 40. The protruding portion 38, the support base portion 39, and the standing wall side wall portion 40 all protrude substantially vertically from the edge portion of the standing wall portion main body 37 in the same direction, and specifically, from the “end portion on the standing wall portion 31 side”. It protrudes along the longitudinal direction of the bottom plate portion 30 in the direction toward the “base-mounting through-hole 33 side end”. As shown in FIG. 7, the protruding direction of the protrusion 38 and the support base 39 is substantially the same, and the length of the support base 39 in the protrusion direction is longer than the length of the protrusion 38 in the protrusion direction. It is getting shorter.
In the following description, the vertical direction is the height direction of the standing wall portion 31, and the direction along the short direction of the bottom plate portion 30 is the width direction of the standing wall portion 31. The direction along the longitudinal direction of the bottom plate portion 30 is defined as the thickness direction of the standing wall portion 31.

As shown in FIG. 4, the standing wall main body 37 is a substantially concave plate. The standing wall portion main body 37 is formed by bending the “standing wall portion 31 side end” of the bottom plate portion 30 upward in the vertical direction, and protrudes from the bottom plate portion 30 substantially vertically. Since the standing wall portion main body 37 is a portion forming the core of the standing wall portion 31, the height direction, the width direction, and the thickness direction of the standing wall portion main body 37 are the height direction, the width direction, and the thickness direction of the standing wall portion 31, respectively. It is the same.
Here, a through hole 45 is formed in the base end portion in the protruding direction of the standing wall portion main body 37, and a support stand arrangement space 41 is formed in the tip portion in the protruding direction of the standing wall portion main body 37.

  As shown in FIG. 4, the through-hole 45 is provided across the bottom plate portion 30 and the standing wall portion main body 37, and the through-hole having a trapezoidal opening shape penetrating the back surface from the surface of the bottom plate portion 30 and the standing wall portion An opening shape penetrating the main body 37 in the thickness direction is formed by integrally connecting a rectangular through hole. The through hole 45 is located at a position slightly closer to the bottom plate side wall portion 32 than the center of the bottom plate portion 30 in the short direction.

  As shown in FIG. 8, the support base arrangement space 41 is a substantially inverted concave-shaped missing portion formed in the central portion in the width direction of the front end portion of the standing wall portion main body 37 in the protruding direction. Specifically, two elongated cutouts are provided at the front end portion of the standing wall main body 37 in the protruding direction, and most of the rectangular plate-like portion formed between the two cutouts is bent at a substantially right angle. (See FIGS. 4 and 5). And the support stand arrangement | positioning space 41 is extended toward the protrusion direction base end side from the protrusion direction front end side of the standing wall part main body 37. As shown in FIG. In addition, the distance from the one side edge part of the width direction of the standing wall part main body 37 to the support stand arrangement | positioning space 41 and the distance from the other edge part of the width direction of the standing wall part main body 37 to the support stand arrangement | positioning space 41 become substantially the same. Yes.

Here, when attention is paid to the front end in the extending direction of the support base arrangement space 41 (most part from the bottom plate portion 30), as shown in FIG. 8, the width direction of the support base arrangement space 41 (the width direction of the standing wall main body 37). Protruding hole portions 41a and 41a are formed at both ends, respectively. Each of the projecting hole portions 41a and 41a has a shape combining a quadrangle and a downwardly projecting semicircle.
When attention is paid to the extending direction base end portion of the support stand arrangement space 41 (the tip end portion in the protruding direction of the standing wall portion main body 37), the support stand arrangement space 41 is respectively connected to the upper end surface 42 of the standing wall portion main body 37 at both end portions in the width direction. It is continuous. And in the part where the support stand arrangement space 41 and the upper end surface 42 of the standing wall portion main body 37 are continuous, inclined portions 41b and 41b are formed. These inclined portions 41 b and 41 b are inclined surfaces that become lower toward the center in the width direction of the support stand arrangement space 41.
Furthermore, a projecting plate portion 43 is formed between the two projecting hole portions 41 a and 41 a of the support base arrangement space 41.

  The protruding plate portion 43 is a substantially rectangular plate-like portion, and protrudes from the protruding direction base end side of the standing wall portion main body 37 to the protruding direction distal end side. The protruding plate portion 43 is surrounded by the support base arrangement space 41 at the protruding direction front end portion and the width direction both end portions, and is continuous with the standing wall portion main body 37 at the protruding direction base end portion.

As shown in FIGS. 4 and 5, each of the protrusions 38 is a plate-like body provided at each of both end portions in the width direction at the front end in the protruding direction of the standing wall main body 37. Projects vertically. Specifically, the protrusions 38 are formed by bending both ends in the width direction of the standing wall main body 37 so as to have a substantially U-shaped cross section. At this time, as shown in FIG. 6, the two protrusions 38 are slightly open at the tips in the protruding direction. That is, the two protrusions 38 are narrowed on the proximal end side in the protruding direction, and gradually open toward the distal end side in the protruding direction. The distance between the two protrusions 38 is slightly longer at the distance L2 at the distal end in the protruding direction than at the distance L1 at the proximal end in the protruding direction.
The protrusion 38 has a shape in which a rectangular plate-like portion on the proximal side in the protruding direction and a trapezoidal plate-like portion on the distal side in the protruding direction are integrated. Therefore, as shown in FIG. 7, in the trapezoidal plate-like portion on the front end side in the projecting direction, the lower side surface 38 is inclined so as to rise upward toward the front end in the projecting direction. As a result, in this trapezoidal plate-like portion, the distance between the lower side surface 38b and the upper side surface 38a of the projecting portion 38 decreases from the base end side in the projecting direction toward the front end side in the projecting direction. In other words, the cross-sectional area of the projecting portion 38 becomes smaller toward the front end side in the projecting direction. That is, the protrusion 38 is tapered.

As shown in FIG. 4, the support base portion 39 is a substantially rectangular plate-like member formed by bending the protruding direction front end portion of the standing wall portion main body 37, and protrudes substantially vertically from the standing wall portion main body 37. . At this time, as shown in FIG. 6, the support base portion 39 is formed by chamfering the corner portion of the distal end portion in the protruding direction to form an inclined surface. It is formed from a trapezoidal plate-like part of the part.
In addition, the support base 39 is provided at the tip portion in the protruding direction of the protruding plate 43 (see FIGS. 5 and 8). At this time, as shown in FIGS. 7 and 8, the support base 39 is at a position lower than the protrusion 38. Moreover, it exists in the position higher than the semicircle part of the protrusion hole part 41a (refer FIG. 8) of the support stand arrangement | positioning space 41. FIG. And the support stand part 39 is arrange | positioned in parallel with the baseplate 30, as FIG. 7 shows. Therefore, the back surface of the support base 39 and the surface of the bottom plate 30 are in a position facing each other.

As shown in FIGS. 4 and 5, the standing wall side wall portion 40 is a substantially rectangular plate-like portion formed by bending both ends in the width direction of the standing wall portion main body 37 so as to have a substantially U-shaped cross section. One is formed at each of both ends in the width direction of the standing wall portion main body 37 and protrudes from the standing wall portion main body 37 substantially vertically. And the standing wall side wall part 40 is extended over the whole height direction of the standing wall part main body 37 from the protrusion direction base end part of the standing wall part main body 37 to the protrusion direction front end side.
Further, the upper end portion of the standing wall side wall portion 40 faces the protrusion 38 with the gap 44 interposed therebetween.
In addition, one of the two standing wall side walls 40 is continuous in an L shape with a part of the bottom plate side wall 32 overlapping the bottom plate side wall 32.

  As shown in FIG. 9, the detachable base portion 17 is a substantially dish-shaped member in which most of the edge portion of the bottom plate portion 50 is surrounded by four peripheral wall portions 51, 52, 53, 54.

As shown in FIG. 10, the bottom plate portion 50 is formed with a main body portion 50a, a protruding portion 50b, and a cut-off portion 50c.
More specifically, the main body portion 50a is a substantially rectangular plate-like portion, and the protruding portion 50b is a substantially rectangular plate-like portion smaller than the main body portion 50a. The main body portion 50a and the protruding portion 50b are a single plate-like member, and the protruding portion 50b protrudes outward from the main body portion 50a. At this time, the protruding portion 50b protrudes along the short side direction of the main body portion 50a from the central portion in the longitudinal direction, which is one end portion in the short side direction of the main body portion 50a.
The cut-off portion 50c is a portion obtained by obliquely cutting one corner portion of the main body portion 50a. The cut-off portion 50c is formed by obliquely cutting from the base end portion in the protruding direction of the protruding portion 50b to one end portion in the longitudinal direction of the main body portion 50a.

  In the bottom plate portion 50, through holes 56 are formed in the vicinity of both end portions in the short direction of the main body portion 50a. Specifically, one through hole 56 is provided in one side end portion of the main body portion 50a in the short side direction and in the vicinity of the base end portion of the protruding portion 50b in the protruding direction. Two through holes 56 are provided on the other end side. These are all through-holes that penetrate the front and back surfaces of the bottom plate portion 50.

  The four peripheral wall portions 51, 52, 53, and 54 are provided in portions of the edge portion of the bottom plate portion 50 excluding the protruding portion 50 b and the vicinity thereof, and the cut-off portion 50 c, and are substantially from the surface of the bottom plate portion 50. It protrudes vertically toward the Tenchi region improvement side. At this time, the four peripheral wall portions 51, 52, 53, 54 have substantially the same length in the protruding direction. Each of the peripheral wall portions 51, 52, 53, 54 is formed by bending the edge portion of the bottom plate portion 50 upward in the vertical direction. And these surrounding wall parts 51, 52, 53, 54 are continuing via the clearance gap in the circumferential direction (refer FIG. 9, FIG. 11).

Here, the two peripheral wall parts 51 and 53 located in the longitudinal direction both ends of the baseplate part 50 are considered. The direction along the short direction of the bottom plate portion 50 is the width direction of the two peripheral wall portions 51 and 53, and the direction along the longitudinal direction of the bottom plate portion 50 is the thickness direction of the two peripheral wall portions 51 and 53. .
The two peripheral wall portions 51 and 53 are formed such that the peripheral wall portion 53 formed at the end portion that is continuous with the cut-off portion 50c has a length in the width direction as compared with the peripheral wall portion 51 formed at the other end portion. It is getting shorter. The peripheral wall 53 having a short length in the width direction is provided with a through hole 57 for attaching a connector. In addition, two cutouts 58 and 58 (attachment / detachment side locking portions) are formed in the peripheral wall portion 51 having a long length in the width direction.

As shown in FIGS. 9 and 11, the through hole 57 for attaching the connector has a circular opening shape and is a through hole that penetrates the peripheral wall portion 53 in the thickness direction. That is, the through hole 57 for attaching a connector penetrates the outer side surface 53 a and the inner side surface 53 b that face each other in the thickness direction of the peripheral wall portion 53. The inner side surface 53 b is a surface that is continuous with the surface of the bottom plate portion 50.
Further, the through hole 57 for attaching the connector is a substantially central portion in the protruding direction of the peripheral wall portion 53, and is formed at a position from one end portion in the width direction of the peripheral wall portion 53. Specifically, it is located in the position from the edge part near the cut-off part 50c among the both ends of the width direction of the surrounding wall part 53. FIG. This position is in the vicinity of the substantially central portion of the bottom plate portion 50 in the short direction.

As shown in FIG. 11, the two cutouts 58 and 58 are substantially rectangular cutouts formed at both ends in the width direction of the peripheral wall portion 51 and at the base end portion (lower end portion) in the protruding direction. . The two cutouts 58 penetrate the peripheral wall portion 51 in the thickness direction, and communicate the portion surrounded by the four peripheral wall portions 51, 52, 53, and 54 with the outside.
In addition, by forming these two notches 58 and 58 in the substantially rectangular plate-shaped peripheral wall portion 51, the peripheral wall portion 51 is a substantially T-shaped plate-like member.

As shown in FIGS. 12 and 13, the connection tool 18 is formed to include a main body portion 60, two side wall portions 61, and two support leg portions 62. At this time, the main body portion 60 and the two side wall portions 61 are both substantially rectangular plates, and the two side wall portions 61 protrude substantially vertically from both ends of the main body portion 60 in the width direction. The two support legs 62 are formed integrally with the two side walls 61, respectively.
In the following description, the direction along the longitudinal direction (vertical direction) of the main body 60 is defined as the height direction of the connection tool 18, and the direction along the short direction of the main body 60 is defined as the width direction of the connection tool 18. Then, the direction that intersects the height direction and the width direction of the connection tool 18 substantially perpendicularly is defined as the thickness direction of the connection tool 18.

The main body portion 60 is a portion that forms the core of the connection tool 18, and the height direction, the width direction, and the thickness direction of the main body portion 60 are the same as the height direction, the width direction, and the thickness direction of the connection tool 18. Yes. The main body 60 has two surfaces facing each other in the thickness direction, and a surface located between the two side wall portions 61 is a back surface 60b, and the other surface is a front surface 60a.
As shown in FIG. 12, the main body 60 has an attaching / detaching table fixing through-hole 64 in the vicinity of the upper end in the height direction and in the vicinity of one end in the width direction. Further, a base fixing through hole 65 is provided in the vicinity of the lower end portion in the height direction and in the vicinity of the center portion in the width direction. Each of these through holes is a through hole penetrating from the front surface 60a to the back surface 60b, and the opening shape is circular.
At this time, a protrusion 60d that protrudes outward from the lower end surface 60c of the main body 60 is formed at a portion of the main body 60 that is located below the through hole 65 for fixing the base. The protrusion 60d has a semicircular shape that protrudes downward from the main body.
Further, at the upper end portion in the height direction of the main body portion 60, the corner portion is chamfered to form an inclined surface.

As shown in FIG. 13, the side wall portions 61 project from the both ends in the width direction of the main body portion 60 substantially one by one, and the two side wall portions 61 and 61 are in positions facing each other. The side wall portion 61 is formed by bending a portion that is continuous with both ends in the width direction of the main body portion 60 so as to have a substantially U-shaped cross section.
The two side wall portions 61 and 61 are both continuous with substantially the entire width direction both end portions of the main body portion 60, and more specifically, except for the vicinity of the upper end portions of the width direction both end portions of the main body portion 60. Consecutive parts. At this time, the height direction positions of the upper end surfaces 61a and 61a of the two side wall portions 61 and 61 are the same. In addition, the length in the height direction of the side wall portion 61 and the length in the height direction of the main body portion 60 are substantially the same.
The upper end surfaces 61 a and 61 a of the two side wall portions 61 and 61 are both lower than the upper end surface of the main body 60. More specifically, as shown in FIGS. 12 and 13, these two upper end surfaces 61 a, 61 a are lower in the height direction than the through-holes 64 for attaching and detaching the base body 60. Further, the lower portion of the side wall 61 in the height direction is at a position lower than the lowermost end of the main body 60.

  When attention is paid to the upper end portion of the side wall portion 61 in the height direction, the corner portion of the tip portion in the protruding direction is chamfered to form an inclined surface.

  When attention is paid to the lower portion of the side wall portion 61 in the height direction, a notch groove 61 b extending in the protruding direction of the side wall portion 61 is provided. As shown in FIG. 12, the notch groove 61 b is located at the proximal end portion in the protruding direction of the side wall portion 61 and is continuous with the lower end surface 60 c of the main body portion 60. Specifically, the notch groove 61 is adjacent to the lower side of the lower end portion of both end portions in the height direction in the portion of the side wall portion 61 that is continuous with the main body portion 60. And the lower end surface 60c of the main-body part 60 and the upper end surface of the notch groove 61 are the same height. The notch groove 61b has a semicircular shape as shown in FIG.

  Further, at the lower end portion in the height direction of the side wall portion 61, as shown in FIG. 14, the respective corner portions are chamfered at the projecting direction front end portion and the projecting direction base end portion to form an inclined surface. . At this time, the inclined surface 61 c formed at the base end portion in the protruding direction is continuous with the lower end surface 62 b of the support leg 62, and is an inclined surface that becomes higher as the support leg 62 is approached.

As shown in FIG. 12, the support leg portion 62 is a rectangular plate-like portion protruding from the side wall portion 61. Specifically, the support leg portion 62 and the side wall portion 61 are integrated into a single plate, and the support leg portion 62 protrudes from a lower portion of the side wall portion 61 that is not continuous with the main body portion 60. ing. At this time, the direction in which the side wall 61 projects from the main body 60 and the direction in which the support leg 62 projects from the side wall 61 are opposite to each other. That is, the support leg part 62 and the side wall part 61 are the directions which are mutually separated from the part which these continue, and protrude in the opposite direction. In addition, the corner | angular part of the front-end | tip part of the protrusion direction of the support leg part 62 is chamfered, and forms the inclined surface.
Further, the upper end surface 62 a of the support leg 62 is continuous with the notch groove 61 b of the side wall portion 61, and the lower end surface 62 b of the support leg portion 62 is continuous with the inclined surface 61 c of the side wall portion 61. That is, the support leg portion 62 is positioned slightly above the lower end portion of the side wall portion 61.
By the way, the support legs 62 are provided at both ends in the width direction of the connection tool 18, respectively. At this time, as shown in FIG. 14, the support leg 62 on one side is longer in the protruding direction than the other support leg 62.

Here, the assembly structure of the fixing member 12 when the circulation pump 11 is mounted in the housing 2 by the fixing member 12 of the present embodiment will be described.
When the circulation pump 11 is mounted in the housing 2, the circulation pump 11 is placed on the detachable base portion 17 as shown in FIG. 2. At this time, the circulation pump 11 is fixed to the detachable base portion 17 via a screw 90. Specifically, the screw 90 is inserted from the back side into the through hole 56 formed in the bottom plate portion 50 of the detachable base portion 17 (see FIG. 3), and the screw hole formed in the circulation pump 11 (Not shown) is engaged

As shown in FIG. 2, the base portion 16 is placed on the bottom plate portion 2 b of the housing 2, and is integrally attached to the bottom plate portion 2 b via screws 91. Specifically, the screw 91 is inserted from the surface side of the bottom plate portion 30 into the base mounting through hole 33 formed in the bottom plate portion 30 of the base portion 16. The shaft portion is engaged with the housing 2.
At this time, it is attached so that the longitudinal direction of the base portion 16 and the direction from the back plate portion 2e of the housing 2 to the attachment position of the front plate portion are the same.

Further, as shown in FIG. 2, the detachable base portion 17 is placed on the standing wall portion 31 and the connection tool 18 of the base portion 16.
At this time, on the side of the standing wall 31, the two protrusions 38 and 38 are inserted into the notches 58 and 58 of the detachable base 17, and are attached to and detached from the support base 39 of the base 16. The back surface of the bottom plate portion 50 of the base portion 17 is placed. Here, the protruding portion 38 of the base portion 16 is in a state separated from the bottom plate portion 50 of the detachable base portion 17. And the substantially whole surface (upper side surface) of the support base part 39 of the base part 16 and the bottom plate part 50 of the detachable base part 17 are in a contacted state (not shown).

2 and 3, the back surface of the bottom plate portion 50 of the detachable base portion 17 is placed on the upper end surface 61a of the side wall portion 61 formed in the connection portion 18, as shown in FIGS. It is in a state.
At this time, the back surface 60b of the main body 60 of the connector 18 and the outer side surface 53a of the detachable base 17 are in contact with each other. The attachment / detachment base fixing through hole 64 formed in the main body 60 and the connection tool attachment through hole 57 of the peripheral wall portion 53 are arranged to overlap each other, and the screw 19 is attached to the attachment / detachment base fixing through hole 64 and the connection tool. The mounting through-hole 57 is inserted.

  Here, when attention is paid to the lower end portion of the side wall portion 61 of the connecting portion 18, the lower end portion of the side wall portion 61 is inserted into the engagement hole portion 35 of the base portion 16 and comes into contact with the bottom plate portion 2 d of the housing 2. ing. The lower end surface 62 b of the support leg portion 62 protruding from the side wall portion 61 is in contact with the surface of the bottom plate portion 30 of the base portion 16. More specifically, the lower end portions of the two side wall portions 61 are inserted into both end portions of the engagement hole portion 35 in the longitudinal direction. At this time, a part of the lower end portion of the side wall portion 61 is inserted into the two long hole portions 35 b of the engagement hole portion 35, and the remaining portion is at the longitudinal end portion of the base end portion 35 a of the engagement hole portion 35. It has been inserted.

  At this time, the back surface 60b of the main body portion 60 of the connection tool 18 and the side surface 34a of the cut-and-raised portion 34 of the base portion 16 are in contact with each other. Of the side surfaces of the cut-and-raised portion 34, two side surfaces 34 c and 34 d that intersect perpendicularly to the side surface 34 a that is in contact with the main body portion 60 are in contact with the side wall portion 61 of the connection tool 18. That is, the cut-and-raised part 34 is surrounded by the connection tool on three sides and is in contact with the connection tool 18 at the three side surfaces 34a, 34c, and 34d. Further, at this time, the base fixing through hole 65 of the connection tool 18 and the connection tool mounting through hole 36 of the cut-and-raised part 34 are overlapped, and the screw 19 can be inserted. The screw 19 is inserted through the base fixing through hole 65 and the connector mounting through hole 36.

The connecting tool 18 is attached to the base 16 and the attaching / detaching base 17 with screws 19 in a state where both end portions in the longitudinal direction of the back surface of the bottom plate part 50 of the attaching / detaching attaching part 17 are respectively placed on the support base 39 and the connecting tool 18. Installed by.
Here, all the screws 19 (the two screws 19, 19) are all attached to the attachment / detachment base fixing through hole 64 and the base fixing through hole 65 from the front surface 60 a to the back surface 60 b of the main body 60 of the connector 18. Is inserted. At this time, by removing all the screws 19 in the direction from the back surface 60b of the main body 60 of the connector 18 toward the front surface 60a, the connector 18 can be removed from the base 16 and the detachable table 17. be able to.
In the fixing member 12, all the screws 19 are attached / detached from the openings of through holes (the attaching / detaching base fixing through hole 64 and the base fixing through hole 65) formed in the front surface 60 a of the connection tool 18.
That is, in the fixing member 12 of the present embodiment, the screw 19 is attached to only one flat surface (the front surface 60a of the main body 60) among all the surfaces constituting the outer peripheral surface of the fixing member 12. And the attachment / detachment direction of all the screws 19 is the same.

  Next, an operation when the circulating pump 11 attached in the housing 2 by the fixing member 12 is taken out of the housing 2 will be described with reference to FIGS. 15 to 19.

  The front plate portion (not shown) of the housing 2 is removed, and the circulation pump 11 and the fixing member 12 built in the internal space of the housing 2 are exposed to the outside as shown in FIG. Then, a movable member such as a pipe is moved from the circulation pump 11 and the fixing member 12 among the members arranged around the circulation pump 11 and the fixing member 12 (FIG. 16).

  Then, the screw 19 is removed from the fixed member 12 in the fully attached state in which the detachable base part 17 is attached to the base part 16 so as not to be detachable. As a result, the connection tool 18 becomes removable from the base 16 and the detachable base 17. In this state, the connecting tool 18 is moved to a place away from the base 16 and the detachable base 17. As a result, the fixing member 12 shifts to a temporarily attached state where the detachable base part 17 and the base part 16 are detachable.

Here, the operation | work when removing the screw | thread 19 and the connection tool 18 and moving these outside the housing 2 is considered.
When carrying out this operation, the operator places the tool for attaching / detaching the screw 19 (for example, a screwdriver) or the operator's own hand in the vicinity of the fixing member 12, and the front surface 60 a of the main body 60 of the connector 18. And a space located between the portion to which the front plate portion of the housing 2 is attached and the fixing member 12 (a space located in front of the drawing in FIG. To do the work.
Then, when the removed screw 19 is moved to the outside of the housing 2 or when the connection tool 18 is moved to the outside of the housing 2, the screw 19 is moved outside through the proximity space.

When the fixing member 18 shifts to the temporarily attached state, as shown in FIG. 18, the one end portion in the longitudinal direction of the detachable base portion 17 moves downward, and the detachable base portion 17 is inclined. Specifically, the end portion of the detachable base portion 17 where the peripheral wall portion 53 provided with the connection tool attaching through hole 57 is located moves to a position lower than the end portion where the peripheral wall portion 51 provided with the notch 58 is located. . And the attachment-and-detachment base part 17 and the base part 16 are latched in this state, and will be in a stationary state.
Here, the immobile state refers to a state where the position is fixed and does not move unless an external force is applied, and is relatively movable when an external force is applied.

  Further, when the fixing member 18 shifts to the temporary attachment state, the bottom plate portion 50 of the detachable base portion 17 comes into contact with only the front end portion in the protruding direction of the support base portion 39 and the vicinity thereof. That is, the base plate portion 50 and the support base portion 39 are separated from each other on the base end side in the protruding direction. Further, the lower side surface 38b of the projecting direction base end portion of the protruding portion 38 is in contact with the portion in the vicinity of the notch 58 in the bottom plate portion 50 of the detachable base portion 17.

Then, as shown in FIG. 19, the detachable base portion 17 is removed from the base portion 16, and the detachable base portion 17 and the circulation pump 11 are taken out of the housing 2. Specifically, the mounting / dismounting base part 17 and the circulation pump 11 are moved downward relative to the base part 16 toward the front side (front side in FIG. 15), and passed through the adjacent space as they are to the front side. Move it and pull it out of the housing 2. With this, the removal work of the circulation pump 11 is completed.
Here, the near side is a direction from the back plate portion 2e of the housing 2 toward the mounting position of the front plate portion. Moreover, when actually performing the removal work, the circulation pump 11 may be reversed or removed while passing through piping or the like located around the position where the circulation pump 11 is disposed. The direction is from the plate portion 2e toward the mounting position of the front plate portion.

As described above, when removing the screw 19, the connection tool 18, and the mounting / dismounting base part 17, only the adjacent space is used in any removal work, and other spaces located around the circulating pump 11 and the fixing member 12 are used. There is no need to use it for work.
The removed screw 19, connecting tool 18, and detachable base part 17 all pass through the adjacent space and move in a direction from the back plate part 2 e of the housing 2 toward the mounting position of the front plate part, and the outside of the housing 2. To reach. That is, in the mounting structure of the present invention, the removal direction of the screw 19, the connection tool 18, and the detachable base 17 is the same. Therefore, when the screw 19, the connection tool 18, and the attachment / detachment base portion 17 are taken out of the housing 2, the space for moving them can be the same space.
Furthermore, in the mounting structure of the present invention, the space for moving the screw 19, the connecting tool 18, and the detachable base 17 to the outside of the housing 2 is used as a space for performing these removing operations. Can do.
Therefore, even if it is a case where a wide space cannot be ensured around the attachment position of the circulation pump 11, the removal work becomes easy.

Here, the case where the attachment / detachment base part 17 which attached the circulation pump 11 integrally is attached to the base part 16 distribute | arranged to the inside of the housing 2 is considered.
The installation work is the reverse of the removal work. Therefore, as in the case of the detachment work, the space to be used may be only the adjacent space in any work when the attachment / detachment base portion 17 is attached in the temporary attachment state and the connection tool 18 is arranged and fixed with the screw 19. . In addition, a space for moving the detachable base part 17, the connection tool 18, and the screw 19 at the time of attachment can be set as a proximity space.
At this time, since the connection tool 18 is attached to the base part 16 and the attachment / detachment part 17 in the temporarily attached state, the attachment / detachment part 17 is manually supported by the operator when the connection tool 18 is attached. There is also an advantage that it is not necessary and easy to install.
For these reasons, even when a large space cannot be secured around the position where the circulation pump 11 is mounted, the mounting operation is easy and the mounting can be performed firmly.

Incidentally, as shown in FIG. 6, the distance between the two protrusions 38, 38 of the base 16 (the distance between the opposing surfaces of the two protrusions 38, 38) is The distance L1 is shorter than the distance L2 at the tip portion in the protruding direction. And the distance L1 in the protrusion direction base end part between the two projection parts 38 and 38 is the same as the distance L3 (refer FIG. 11) of the nearest part between the two notches 58 of the attachment-detachment base part 17. FIG. It has become.
This makes it easy to attach the detachable base portion 17 to the base portion 16 during the mounting operation. This will be described in detail below.

When attaching the detachable base part 17 to the base part 16, the two projecting parts 38 are inserted into the two notches 58 of the peripheral wall part 51 from the front end part in the protruding direction. Then, the portion up to the base end portion of the protrusion 38 is inserted into the notch 58. In other words, a portion located between the two notches 58 of the peripheral wall portion 51 (hereinafter referred to as an attachment / detachment base side engaging portion) is inserted between the two protrusions 38 and 38, and the tips of the two protrusions 38 and 38 are inserted. Move from side to base side.
Here, since the distance L2 between the two projections 38 and 38 is long at the tip portions of the two projections 38, it is easy to insert the attachment / detachment side engagement portion between the two projections 38 and 38. It has become. The distance L1 between the two protrusions 38, 38 is shortened at the base end portion of the two protrusions 38, and the attachment / detachment base side engagement portion can be sandwiched with almost no gap. Can be attached to the base 16 in a stable state.

  Further, when attaching the connecting tool 18 to the base part 16 and the detachable base part 17 during the attaching operation, the lower end of the side wall part 61 of the connecting part 18 is inserted into the engaging hole part 35 of the base part 16 and connected. The cut-and-raised part 34 can be attached in a state of being surrounded from three directions by a U-shaped section of the part 18. As a result, the connector 18 becomes immovable relative to the base portion 16 in the front-rear direction (longitudinal direction of the base portion 30) and in the left-right direction (short direction of the base portion 30). It has become easy. Specifically, when the connection tool 18 tries to move in the left-right direction and the rearward direction (direction approaching the standing wall 31) relative to the base part 16, the connection tool 18 comes into contact with the cut-and-raised part 34. , Its movement is inhibited. Further, when moving forward (in a direction away from the standing wall portion 31), the inclined surface 61 c of the side wall portion 61 comes into contact with the edge portion of the engagement hole portion 35 and the movement is inhibited. Therefore, the connector 18 is not movable in the front-rear direction and the left-right direction relative to the base portion 16.

  At this time, the length L4 (see FIG. 14) from the position of the lower end surface 62b of the support leg 62 to the lower end of the side wall 61 in the side wall 61 of the connector 18 is the depth of the engagement hole 35. It is almost the same. Therefore, when the connection tool 18 is attached to the base portion 16, the lower end surface 62b of the support leg portion 62 is in contact with the surface of the base portion 30 and the lower end surface of the side wall portion 61 is a housing as shown in FIG. 2 is in contact with the bottom plate 2b. If attached in this way, the lower end surface of the side wall portion and the support leg portion is flush (same surface), and the lower end portion of the side wall portion is not in contact with the bottom plate portion 2b of the housing 2 as compared with the grounding of the connection tool 18. The area can be increased, and attachment that is strong against the force from above is possible.

  In the above-described embodiment, the circulation pump 11 is attached in the housing 2 of the latent heat recovery type heat source unit 1, but the pump fixing structure of the present invention is not used only in the latent heat recovery type heat source unit. For example, you may employ | adopt with a heat pump type combustion apparatus and may employ | adopt with a solar water heater. The pump fixing structure according to the present invention includes a housing and a pump, and the pump can be attached to the housing as long as the device incorporates the pump in the housing.

  In the above-described embodiment, the circulation pump 11 provided in the bath circulation circuit is attached to the housing 2. However, the pump that can be fixed to the housing with the pump fixing structure of the present invention is not limited to this. For example, in a heat source machine provided with a heating circulation circuit connected to an external heating terminal, a circulation pump used in the heating circulation circuit may be attached. That is, the pump that can be fixed to the housing by the pump fixing structure of the present invention is not particularly limited, and may be a conventionally known pump.

  In the above-described embodiment, when the fixing member 12 is built in the housing 2, the front surface 60 a of the main body 60 in the connection tool 18 is arranged at a position facing the inner peripheral surface of the front plate portion (not shown) of the housing 2. ing. Then, when the front plate portion of the housing 2 is removed, the fixing member 12 is arranged so that the front surface 60a of the main body portion 60 and the operator face each other. However, the arrangement position when the fixing member 12 is built in the housing 2 is not limited to this. For example, when the side wall portion or the back plate portion of the housing 2 is removed, it may be arranged at a position facing the worker.

  The fixing structure of the pump of the present invention is not limited to the first embodiment described above. For example, a configuration in which the engagement guide portion 73 is provided on the base portion 70 or a window portion 74 in the attachment / detachment base portion 71 may be employed. Such a configuration will be described in detail below as a second embodiment. The same parts as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted. In addition, only the main part will be described in order to simplify the description.

  As shown in FIG. 20, the base portion 70 of the second embodiment has an engagement guide portion 73 formed at the front end portion of the standing wall portion 31 in the protruding direction. Further, the support base 77 of the second embodiment is formed by cutting and raising a part of the standing wall main body 37 and is adjacent to a through hole 78 penetrating the standing wall main body 37 in the thickness direction.

As shown in FIGS. 20 to 22, the engagement guide portion 73 is the highest position in the height direction of the standing wall main body 37 and is formed in a substantially rectangular plate shape formed at a position from one end in the width direction. It is a part of.
The engagement guide portion 73 is formed by bending the tip portion of the standing wall portion main body 37 in the protruding direction downward 90 degrees. That is, the engagement guide portion 73 protrudes substantially vertically from the standing wall portion main body 37 and is arranged in parallel with the bottom plate portion 30. At this time, the engagement guide portion 73 extends along the longitudinal direction of the bottom plate portion 30 in the direction from the “end portion on the standing wall portion 31 side” of the bottom plate portion 30 toward the “end portion on the side of the base mounting through hole 33”. It protrudes.
At this time, the portion that is continuous with the engagement guide portion 73 of the standing wall portion main body 37 is provided at a position higher than the surroundings, as shown in FIG. That is, the engagement guide portion 73 is continuous with the standing wall portion main body 37 at a position higher than the upper end surface 42 of the other portion of the standing wall portion main body 37 and the upper side surface 38 of the protrusion 38.
At this time, the front end portion in the protruding direction of the engagement guide portion 73 is chamfered at its corner portion to form an inclined surface.

The support base 77 is below the protrusion 38 (see FIG. 21), and is a substantially rectangular plate-like portion formed in the vicinity of the central portion in the width direction of the standing wall main body 37 (see FIG. 20).
The support base 77 is formed by cutting and raising a part of the standing wall main body 37. Specifically, the support base 77 is formed by bending the tip portion upward by approximately 90 degrees. That is, the support base 77 protrudes substantially vertically from the standing wall main body 37 and is disposed in parallel with the bottom plate 30. At this time, the support base portion 77 protrudes along the longitudinal direction of the bottom plate portion 30 in the direction from the “end portion on the standing wall portion 31 side” of the bottom plate portion 30 to the “end portion on the base mounting through hole 33 side”. ing.
Moreover, the corner | angular part of the front-end | tip part of the protrusion direction of the support base part 77 is chamfered, and becomes an inclined surface.

  Here, the engagement guide part 73 and the support base part 77 protrude in substantially the same direction, and the length of the engagement guide part 73 in the protrusion direction is longer than that of the support base part 77. At this time, the engagement guide portion 73 and the support base portion 77 are each arranged in parallel with the bottom plate portion 30. At this time, the support base 77 is located below the engagement guide 73, and a part of the surface of the support base 77 and a part of the back of the engagement guide 73 are opposed to each other. . That is, the engagement guide portion 73 and the support base portion 77 partially overlap in the width direction of the standing wall portion main body 37.

  As shown in FIGS. 20 and 22, the through-hole 78 is a through-hole whose opening shape that penetrates the standing wall portion main body 37 in the thickness direction is substantially concave.

As shown in FIG. 23, the mounting / dismounting base 71 of the second embodiment has a window 74 formed in the peripheral wall 53 that is one of the four peripheral walls 51, 52, 53, and 54. .
The window portion 74 is a cutout formed at one end portion in the width direction of the peripheral wall portion 53, and is formed by cutting off the end portion in the width direction of the peripheral wall portion 53.

  Here, the peripheral wall portion 53 in which the window portion 74 is formed is located at a position facing the peripheral wall portion 51 in which the notch 58 is formed. The window 74 is at a position facing the notch 58. The area of the portion surrounded by the edge portion of the window portion 74 is larger than the opening area of the notch 58. In other words, the window portion 74 is provided over a wide range of the peripheral wall portion from the notch 58.

  According to the configuration in which the engagement guide part 73 is provided in the base part 70 and the window part 74 is provided in the attachment / detachment base part 71 as in the second embodiment, the attachment work when the fixing member is attached in the fully attached state is further improved. Can be implemented accurately. This will be described in detail below.

As described above, when the front plate portion of the housing 2 is removed and mounting is performed from the front side (front side in FIG. 15), the standing wall portion 31 of the base portion 70 is the back plate portion 2e of the housing 2 (see FIG. 1). ) It is arranged at a position on the back side in the vicinity (back side in FIG. 15). In this case, it is difficult for the worker on the near side to see the back side portion.
Therefore, when performing the mounting operation, in the base portion 16 of the first embodiment, it may not be visible that the protrusion 38 of the base portion 16 is inserted into the notch 58 of the detachable base portion 17.

  In this case, there is a possibility that the fixing member is fixed in the fully attached state in a state where the projection 38 is not inserted through the notch 58 due to a mistake in the attaching procedure. That is, the connecting tool 18 is fixed to the base 16 and the detachable base 17 in a state where the one end of the detachable base 17 is placed on the standing wall main body 37 and the projection 38 instead of the support base 39. There was a risk of it.

  On the other hand, in the base part 70 of the second embodiment, an engagement guide part 73 is formed, and the base part 70 cannot be fixed in the fully attached state when the protrusion 38 is not inserted into the notch 58. Therefore, the main mounting state can be achieved in a state where the protrusion 38 is reliably inserted into the notch 58.

Specifically, as shown in FIG. 24A, when one end of the bottom plate portion 50 of the detachable base portion 71 is placed on the standing wall portion 31, the bottom plate portion 50 is engaged with the engagement guide portion 73. Located on the top. In other words, one end portion of the bottom plate portion 50 is not in direct contact with the projection 38 and is positioned away from the projection 38. At this time, one end portion of the bottom plate portion 50 located on the standing wall portion 31 is lifted high with respect to the other, and the attachment / detachment base portion 71 is inclined at a steep angle. Inclined greatly. Thus, when the detachable base part 71 is in a largely inclined state, the connection tool 18 cannot be fixed to the detachable base part 71 and the base part 70 at the same time. For this reason, when the detachable base 71 is placed on the standing wall 31, the main mounting state cannot be achieved.
Therefore, in order to make the main mounting state, it is necessary to position one end of the detachable base 71 below the engagement guide 73, specifically, as shown in FIG. It is necessary to position one end of the detachable base 71 between the engagement guide 73 and the support base 77. When the one end of the detachable base 71 is arranged between the engagement guide part 73 and the support base 77 in this way, the protrusion 38 is inserted into the notch 58. The protrusion 38 can be reliably inserted into the notch 58.

In the second embodiment, since the window portion 74 is formed, the operator can visually check the protrusion 38 of the base portion 70 and the notch 58 of the detachable base portion 71 when performing the attaching operation. Therefore, the operator can be urged to insert the protrusion 38 into the notch 58 at the time of attachment.
That is, as shown in FIGS. 23 and 25, a window portion 74 is formed in a portion of the two notches 58 of the detachable base portion 71 that faces one of the notches 58. And the peripheral wall part is not formed in the part facing the other notch 58. Thereby, when the operator looks at the circulation pump 11 and the fixing member 12 from the near side (the near side in FIG. 25), the protrusion 38, the notch 58, and their surroundings can be visually recognized. Therefore, the operator can reliably set the protrusion 38 to the notch 58.

Further, in the above-described embodiment, the base portion 6 that is a member independent of the housing 2 is integrally attached to the bottom plate portion 2b of the housing 2, but the pump fixing structure of the present invention is not limited to this. For example, as shown in FIG. 27, by directly cutting and punching the housing 2, the cut and raised portion 34, the engagement hole 35, the protrusion 38, and the support formed integrally with the housing 2. The base part 39 etc. may be formed, and the structure which attaches the attachment / detachment base part 17 and the connection tool 18 to these may be sufficient.
Similarly, as shown in FIG. 28, the engagement guide portion 73 may be formed by cutting and raising the housing 2.

  Here, in the above-described embodiment, the protrusion 38 of the base portion 6 is a plate-like body and is shaped like a combination of a rectangular plate portion and a trapezoid plate portion, but the pump of the present invention is fixed. The protrusions employed in the structure are not limited to this. For example, it may be a hook-shaped protrusion such as a substantially L-shaped plate. That is, it may be a protrusion provided with a portion protruding in a direction different from the protruding direction from a portion extending in the protruding direction. Furthermore, it may be a rod-like or columnar protrusion instead of a plate-like shape.

  In the embodiment described above, the rectangular opening notch 58 provided in the peripheral wall portion 51 of the detachable base part 17 is the detachable base side locking part, but the detachable base side mechanism employed in the pump fixing structure of the present invention. A stop part is not restricted to this. For example, the opening may be circular or polygonal. Moreover, not only a surrounding wall part but the structure which provides a notch and a through-hole in the baseplate part 50, and is set as the attachment-detachment stand side latching | locking part may be sufficient. For example, a configuration may be adopted in which the hook-shaped protrusion is inserted into a through hole provided in the bottom plate portion 50 so that the detachable base portion 17 is temporarily attached.

  In the embodiment described above, the base side latching part of the base part 16 is the protrusion 38 and the detachable base side latching part of the detachable base part 17 is the notch 58, but the base side latching part is cut. It is good also as a notch, and the attachment-and-detachment stand side latching part is good also as a projection part. That is, it is only necessary to form a pair of locking portions on the base portion 16 and the detachable base portion 17, and the locking portion formed on the base portion 16 and the locking portion formed on the detachable base portion 17 are mutually connected. You can replace it. The engaging part formed in the base part 16 and the attachment / detachment base part 17 should just be able to make the base part 16 and the attachment / detachment base part 17 a temporary attachment state by engaging.

1 Heat source machine 2 Housing 5 Secondary heat exchanger (heat exchanger)
11 Circulation pump (pump)
16, 70 Base part 17, 71 Detachable base part 18 Connector 19 Screw (fastening element)
30 Bottom plate (base plate)
31 Standing wall part 34 Cut and raised part 35 Engagement hole part 38 Projection part (base side latching part)
50 Bottom plate (bottom plate of the detachable base)
51-54 Peripheral wall 58 Notch (detachable base side hook)
73 Engagement guide part 74 Window part

Claims (10)

A pump fixing structure for fixing the pump in a housing having a pump inside,
At least a detachable base part, a base part, and a connection tool,
The detachable base part can be integrally attached to the pump, and includes a detachable base side latching part,
The base part includes a base side latching part,
By engaging the detachable base side latching part and the base side latching part, the detachable base part can be temporarily attached to the base part in a separable manner,
In the temporary attachment state, by attaching a connection tool to the detachable base part and the base part, it is possible to shift to the main attachment state in which the detachable base part and the base part are attached inseparably. The fixed structure of the pump.   Either the detachable base side latching part or the base side latching part is a protrusion, and the other is a notch, and the detachable base side latching is performed by inserting the protrusion into the notch. The pump fixing structure according to claim 1, wherein the base and the base side latching portion are engaged with each other. In the main mounting state, the base side latching portion and the connection tool are respectively in contact with both end portions of the detachable base portion,
In the temporarily attached state, the detachable base part is inclined with a downward slope from the end part from the base side latching part toward the other end part,
It is possible to release the engagement between the detachable base side latching part and the base side latching part by moving the detachable base part relative to the base side latching part downward in the inclined direction. The pump fixing structure according to claim 1 or 2, wherein   The connection tool is attached to each of the detachable base part and the base part via a fastening element, and in the fully attached state, all of the fastening elements are on either side in all directions. The pump fixing structure according to any one of claims 1 to 3, wherein the pump fixing structure is located, and the attaching / detaching directions of all the fastening elements include the same or the same component.   5. The pump according to claim 4, wherein an engagement / disengagement direction of the detachable base side latching portion and the base side latching portion and a detachment direction of the fastening element are the same or include components in the same direction. Fixed structure. The base portion is a member independent of the housing, and includes a flat bottom plate portion and a standing wall portion protruding substantially perpendicularly from the bottom plate portion,
The bottom plate portion is formed with a cut and raised portion cut and raised from the bottom plate portion, and an engagement hole portion adjacent to the cut and raised portion,
The cut-and-raised part protrudes substantially perpendicularly from the bottom plate part and faces the standing wall part, and the engagement hole part is a through-hole penetrating the bottom plate part,
The base side latching portion is formed on the tip portion side in the protruding direction of the standing wall portion,
The detachable base part includes a flat bottom plate part and a peripheral wall part projecting substantially perpendicularly from the bottom plate part, and the detachable base side latching part is formed on the peripheral wall part,
The connector has a main body part and a part protruding downward from the main body part, and can be self-supporting by the part protruding downward,
When attaching the connection tool to the detachable base part and the base part, the lower end portion of the connection tool is inserted into the engagement hole, the connection tool and the cut-up part are in contact, and the connection tool is in an upright state. The pump fixing structure according to any one of claims 1 to 5.   The base part includes a plate-like engagement guide part, and the engagement guide part protrudes upward in the vertical direction of the base part, and the detachable base side latch part and the base side latch part The engagement guide part is located above the detachable base side latching part and the base side latching part when the parts are engaged with each other. Pump fixing structure. The detachable base part includes a flat bottom plate part and a plurality of peripheral wall parts projecting substantially perpendicularly from the bottom plate part, and the detachable base side latching part is formed in one of the peripheral wall parts. A window is formed in at least one of the parts,
The window is a notch or a through hole,
When the detachable base side latching part and the base side latching part are engaged, and the peripheral wall part where the window part is formed is viewed from the outside, the detachable base side latching part and the base side latching part are viewed from the window part. 8. The pump fixing structure according to claim 1, wherein the engaging portion of the stop portion is exposed. It is a heat source machine that heats hot water by burning fuel supplied from the outside and supplies heat via hot water,
A housing having a space inside, and a circulation pump;
It has at least one of a bath circulation circuit that takes out hot water from the bathtub and passes it through the heat exchanger and then returns to the bathtub again, and a heating circulation circuit that circulates the heat medium,
The circulation pump circulates either hot water in the bath circulation circuit or a heat medium in the heating circulation circuit,
A heat source machine, wherein the circulating pump is fixed to a wall of the housing through the pump fixing structure according to any one of claims 1 to 8.   The heat exchanger is close to the circulation pump, and an inner peripheral wall of the housing or a structure built in the housing is close to the side of the circulation pump. The heat source machine according to 9.

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