JP2527462Y2 - Piping cover fitting - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe cover joint used for connecting a plurality of connected pipe covers such as an air conditioning pipe and a hot water supply pipe. 2. Description of the Related Art In a conventional pipe cover joint, a connecting portion for fitting a connected pipe cover to be connected has a fixed inner diameter corresponding to the outer diameter of the connected pipe cover. (For example, see Japanese Utility Model Application Laid-Open No. 54-110824). [0003] Therefore, every time the diameter of the connected pipe cover to be connected is different, it is necessary to replace the joint body in accordance therewith. If the connection pipe covers have different diameters from each other, it is necessary to prepare different diameters of the connection parts of the joint body for each connection part, and it is necessary to prepare a large number of various kinds of joint bodies. The disadvantage in terms of product cost was unavoidable. To solve such inconvenience, for example, prepare a large joint body,
It is conceivable to fill the gap between the connection part of the joint body and the pipe cover with the filler after the completion of the pipe construction and the construction of the pipe cover and the joint, but in this case, the work of filling the filler is troublesome. , Work can only be done after the completion of the installation of pipes and pipe covers, and there are many losses in the work process,
There is also a problem that it is difficult to perform maintenance and inspection of the piping. Still another solving means is a cylindrical connecting portion formed at both ends with a small-diameter end for internally fitting the connected pipe cover and a large-diameter end for internally fitting to the joint main body separately from the joint main body. However, in this case, since the connecting portion is a tubular unit, it is necessary to pass the pipe from the free end side of the pipe in advance before connecting the pipe to the device, and the installation procedure There is a problem that assembling of the pipe cover itself becomes impossible if the mistake is made. Moreover, if an adhesive or a screw is used to fix the joint body and the connection cylinder member, the connection between the joint body and the connection portion requires a great deal of trouble. The present invention uses a small number of types of joint bodies to connect a larger number of different types of connected pipe covers with different diameters, as well as the work of installing pipes and pipe cover joints, and the work of connecting the joint bodies and connecting parts. It is another object of the present invention to provide a pipe cover joint which can be easily performed. [0004] The technical means of the present invention for achieving the above object is to provide a pipe cover joint for connecting a plurality of connected pipe covers, the pipe cover joint being connected to a pipe cover joint. A plurality of connection portions for fitting the connection pipe cover,
The connecting portion is formed from a joint body formed of a separate member, and the connecting portion has a small-diameter end portion on one end side into which the connected piping cover is fitted, and the joint main body on the other end side. It is composed of a connecting cylinder member having a large-diameter end portion fitted therein, and each of the joint body and the connection cylinder member,
The split main body is configured so that it can be divided into two in the radial direction. Further, of the pair of divided main bodies constituting the joint main body, one of the divided main bodies installed on the side where the cover is to be attached is provided with an engagement protrusion on the pipe housing space side. And a fixing screw insertion hole for the cover mounting target portion is provided, and one of the pair of split cylindrical members constituting the connection cylindrical member, one of the split cylinders installed on the cover mounting target portion side. The member is provided with an engaged through-hole in which the engaging protrusion is freely engageable, and the connected pipe is provided on an inner peripheral portion of the one of the divided cylindrical members closer to the small-diameter end than the engaged through-hole. That is, a step for positioning the tip of the cover is provided. [0005] A stopper may be provided at the inner peripheral portion of the divided main body between the engaging projection and the fixing screw insertion hole, for positioning a tip of the connected pipe cover. The operation of the above technical means is as follows. a. Because the connecting part was configured with a separate member from the joint body,
By simply preparing various diameter pipes for each connection part, the connected pipe covers of various diameters can be easily connected. b. Since each connection part was also divided into two parts in the radial direction together with the joint body, one of the joint body and one of the connection cylinder members forming the connection part were previously installed at a predetermined location, and then, on their inner surfaces. The pipe is constructed along the pipe, and then the other joint body and the connecting tubular member can be mounted from above. Therefore, there is no need to pass the joint body and each connection portion from the free end side of the pipe in advance before connecting the pipe to the device, and there is no need to worry about the installation procedure with the pipe cover or the pipe cover joint. Easy to install. c. One of the joint body and one of the connection tubular members are
Since the engagement protrusion is connected to the engaged through hole through which the engagement protrusion is freely engageable, the one joint body and the one connection cylinder member that are divided into two are engaged with the engagement protrusion. Connection and disconnection can be performed easily and in a short time by engaging and disengaging with the joint through-hole. Further, the engagement protrusion is provided so as to protrude toward the pipe housing space side with respect to one of the divided main bodies installed on the side where the cover is to be mounted, of the pair of divided main bodies, and Since the through-hole is provided for one of the pair of divided tubular members that is provided on the side of the cover mounting target, the engaging protrusion protruding toward the pipe housing space (front side). As a mark, one of the divided cylinder members can be engaged so that the engaged through hole is engaged, and one of the divided main body and one of the divided cylinder members can be easily engaged. Can be. Then, just by looking at the state of the engaging projections protruding to the front side through the engaged through holes, it is possible to confirm the state of engagement of the two at a glance and to achieve reliable engagement. d. Since one of the divided main bodies constituting the joint main body is provided with a fixing screw insertion hole for a cover mounting target location, one of the divided main bodies can be easily mounted to the cover mounting target location and one of the split cylinders With the member engaged with one of the split main bodies, it is mounted to the cover mounting target location, and then piping work is performed, and simply by attaching the other split main body and connecting tube member, the piping work is speedily performed. It becomes possible. Furthermore, if one of the divided bodies is attached to the cover mounting target in advance, it can be used as an indicator of the mounting position of the pipe and the connected pipe cover or the pipe cover joint, or can be used for the pipe and the connected pipe cover or the pipe cover joint. It can also be used to temporarily support them during mounting. e. An inner peripheral portion of the one of the divided tubular members closer to the small-diameter end than the engaged through-hole is provided with a step portion for positioning the distal end of the connected pipe cover. By pressing the tip of the connected pipe cover, positioning in the approach direction can be achieved.
Therefore, the connected pipe cover enters the connection cylinder member too much, and the engagement protrusion is damaged, or the connected pipe cover is located on the fixing screw insertion hole of the joint body, and the fixing screw tightening operation is not performed. It can be prevented from becoming an obstacle. Therefore, even after setting the connecting cylinder member and the connected pipe cover to the holding portion, it is possible to smoothly perform the re-tightening operation of the fixing screw inserted through the fixing screw insertion hole,
For example, the joint body is temporarily attached with a fixing screw to a cover mounting target in advance, and the connecting cylinder member and each pipe cover are arranged in a predetermined position along with the fixing body, and then the fixing screw is fully tightened to fix the mounting state. It is possible to easily carry out a pipe cover attaching method such as fixing. F. Also, at the inner peripheral portion of the one divided body,
If a stopper for positioning the leading end of the connected pipe cover is provided, for example, when the connected pipe cover is directly fitted to the holding portion in an inner fitting state, the end of the connected pipe cover is connected to the stopper. By doing so, the relative positioning between the joint body and the connected pipe cover can be performed,
The fitting margin of the connected pipe cover becomes a predetermined value, so that the connected pipe cover can be stably held. Further, since the stopper is provided on the inner peripheral portion of the one divided main body between the engagement projection and the fixing screw insertion hole, the connected pipe cover is set in the holding portion when the connected pipe cover is set on the holding portion. The cover is positioned by the stopper, and it is possible to prevent the end of the connected pipe cover from covering the fixing screw insertion hole beyond the position of the stopper. Therefore,
Smoothly retighten the fixing screw inserted into the fixing screw insertion hole even after the connected pipe cover is set on the holding part, because it is unlikely to hinder the operation of attaching and detaching the fixing screw in the fixing screw insertion hole. For example, the joint main body is temporarily attached with a fixing screw in advance to a cover mounting target portion, and after each piping cover is arranged at a predetermined position, the fixing screw is fully tightened to determine the mounting state. This makes it possible to easily carry out a pipe cover mounting method such as [Effects of the Invention] The above a. The pipe cover joint is substantially divided in the pipe length direction due to the action of, and the pipe cover joint that can easily connect many types of connected pipe covers is replaced by replacing only the divided connection parts. , At low cost. B. B. The effect of (1) is to effectively utilize the fact that the pipe cover joint is divided even in the radial direction, and there is an effect that the installation of the cover can be easily completed after the completion of the piping work. C. The above c. , One of the two joint bodies and one of the connecting cylinder members can be easily connected and disconnected by the engagement and disengagement of the engagement projection and the engaged through-hole, and the conventional adhesive or screw is used. There is less troublesome construction than in the case where it is necessary, so, for example, even when piping on a wall or ceiling surface that is difficult to maintain a predetermined posture for a long time, one side of the joint body fixed to the wall surface or ceiling surface The connection tube member can be held by a simple engagement operation, and there is no need to fix the connection tube member to a wall surface or a ceiling surface separately from the main body, so that there is an effect that construction efficiency can be improved. D. The above d, e, f. , The pipe cover can be securely attached, and the flexibility in the process for temporary fixing and permanent fixing of the joint body is increased, and work rework is reduced and overall work efficiency is improved. It becomes possible. E. The above a, b, c, d, e, f. Due to the effect of (1), not only the work of installing the pipe cover joint at the cover mounting target portion, but also the whole pipe work can be performed smoothly, efficiently and reliably in a short time. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 8, one outdoor unit 1 installed outdoors and two first units installed separately indoors 2A and 2B are provided.
The second indoor units 3A and 3B are connected to each other by two reciprocating air conditioning pipes A and B. In order to cover the air-conditioning pipes A and B, two air-conditioning pipes A and B connected to the first indoor unit 3A are inserted and held inside, and are directly mounted on a vertical wall surface W which is an example of a cover mounting target location. The second air-conditioning pipes A and B connected to the tubular first connected pipe cover 4A and the second indoor unit 3B are inserted and held inside, and the second air-conditioning pipes A and B are attached to the vertical wall surface W.
A connected pipe cover 4B and a third connected pipe attached to the vertical wall surface W by inserting and holding the two air-conditioning pipes A and B in the first and second connected pipe covers 4A and 4B, respectively, collectively and internally. And a cover 4C. Further, a pipe cover joint 7 for internally fitting and connecting the first to third connected pipe covers 4A, 4B, 4C is attached to the vertical wall surface W to constitute an air conditioning pipe facility. The first to third connected pipe covers 4A, 4B, 4C are set so as to sequentially increase in diameter according to the diameter and the number of air conditioning pipes A, B to be installed.
In addition, a hard resin such as hard vinyl chloride resin, which has excellent weather resistance and impact resistance, is formed into a rectangular cylindrical shape, with four corners in a range of about 45 degrees in center angle curved in an arc shape and two in the circumferential direction. It is divided and cut into appropriate lengths according to various site conditions and work conditions before use. 1 to 7 show a pipe cover joint 7.
Shows the overall structure of. The pipe cover joint 7 includes a joint body 5 formed into a substantially T-shape in a front view,
And the connecting portion 17 formed of a separate member. The joint body 5 is provided with holding parts 6 having the same inner diameter at three ends of the T-shape, and the inner diameter of the holding parts 6 is set to the connecting cylindrical member 17A for the first and second connected pipe covers 4A and 4B. , 17B and the outer diameter of the third connected pipe cover 4C, and is formed so as to be directly fitted with the outer diameter of the third connected pipe cover 4C. In FIG. 2, a fixing screw insertion hole 8 to the wall surface W and a third connected pipe cover 4C are fitted in the holding portion 6 on the inner surface of one of the divided main bodies 5A fixed to the wall surface W in the joint body 5. A positioning stopper 9 at the end of the cover at the time is provided continuously. In FIG. 3, the other split main body 5B for the lid includes:
An engaging portion 13 including a protruding side 11 and a protruding side 12 along a butt end portion 10 with one of the divided main bodies 5A is integrally formed at a plurality of locations. By inserting the side 14, the two split main bodies 5A,
5B are configured to be engageable and connectable so as to prevent relative movement in the two-dimensional direction along the dividing plane. In order to connect the first and second connected pipe covers 4A and 4B having outer diameters different from the inner diameter of the holding portion 6 to the two holding portions 6 on the left and right of the joint main body 5, respectively, the connection is performed. Part 17
Is fitted inside. One end of the connecting portion 17 is connected to a first connecting tubular member 17A having a small-diameter end portion 15A for internally fitting and connecting the first connected pipe cover 4A, and the other is connected to a second connected piping cover 4B at one end. There is a second connection cylinder member 17B having a small-diameter end portion 15B. At the other end of each of the first and second connection cylinder members 17A and 17B, a large-diameter end portion that is internally fitted and connected to the joint body 5 is formed.
The first and second connecting cylinder members 17A and 17B are separately connected to each other. The first and second connecting cylinder members 17A and 17B are formed in two parts in the radial direction, and an engaging part formed of a protruding side 11 and a protruding side 12 similar to the joint body 5 is provided near each of the divided side parts 18. 13 and a divided side 14 that engages with the divided cylindrical members 17a and 17b are separately provided, and are engaged with each other so as to prevent relative movement in the two-dimensional direction along the divided surface. . Further, on the inner peripheral portion of the divided tubular member 17a disposed on the wall surface W side, a tip positioning step D against which the tip of the connected pipe cover is pressed is provided, and the connected pipe cover is connected to the connecting pipe cover. It may penetrate too much into the member and damage the engagement projection 19A described later, or the connected pipe cover may be positioned on the fixing screw insertion hole 8 of the joint body 5 and hinder the tightening operation of the fixing screw. It is configured so as to prevent that On the inner surface of the one split main body 5A, near the holding portion 6, two engaging projections 1 are provided.
9A are integrally connected to each other, and engagement holes 19B as engaged through holes that engage with the engagement projections 19A are connected to the connection cylinder members 17A and 17B.
Is provided on one of the divided tubular members 17a. The connecting portion 19 is constituted by providing the engaging projection 19A and an engaging hole 19B as an engaged through hole. Then, by the engagement between the engagement projections 19A and the engagement holes 19B, one of the divided main body 5A and the divided cylindrical member 17a are integrally connected and screwed to the wall surface W, and then the air conditioning pipes A and B are connected. By separately engaging and connecting the other divided main body 5B and the divided cylindrical member 17b to each other in the state of being installed, the joint main body 5 and the connecting portion 1 are connected.
The pipe cover joint 7 composed of the pipe 7 can be easily installed. The pipe cover joint 7 is formed of a hard synthetic resin. Reference numeral 20 in the drawing denotes the divided main body 5.
This is a screw connection part for securely connecting A and 5B by the screw member 21. On the inner surface of the third connected pipe cover 4C, a fixed screw insertion portion 22 is formed in a ridge 23 extending in the longitudinal direction. The engagement projection 19A is located at a position where it fits into the concave groove 24 formed on the back surface of the ridge 23 so as not to be in the way when the third connected pipe cover 4C is directly fitted inside the holding portion 6. It is located in. Another Embodiment Next, another embodiment of the pipe cover joint according to the present invention will be described. In addition to providing three or more holding portions 6 of the joint body 5 of the present invention, two or four or more holding portions 6 may be provided. Different types of connecting portions 17 may be separately mounted on the holding portion 6, or a plurality of the same type of connecting cylindrical members 17A and 17B may be separately mounted, and the combination can be freely selected. As shown in FIG. 9, at least one of the
7 is attached, and each connected portion 6 is directly connected to the pipe cover 4.
A and 4B may be configured so that they can be internally connected. The pipe cover joint 7 can be used not only for installing the air conditioning pipes A and B but also for installing a hot water supply pipe. In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings] FIG. 1 is a schematic longitudinal sectional view showing a connection state. FIG. 2 is a front view of a pipe cover joint on the wall fixed side. FIG. 3 is a front view of a pipe cover joint for a lid. FIG. 4 is a partially cutaway side view showing an attached state. FIG. 5 is a partially cutaway side view of a main part showing an attached state. FIG. 6 is a sectional view taken along line VI-VI of FIG. 5; FIG. 7 is a sectional view taken along line VII-VII of FIG. 4; FIG. 8 is an overall perspective view of an air conditioning piping system. FIG. 9 is a schematic longitudinal sectional view showing a connection state of another embodiment. [Explanation of symbols] 4A Connected piping cover 4B Connected piping cover 4C Connected piping cover 5 Fitting body 5A One split body 8 Fixing screw insertion hole 9 Stopper 15A small diameter end 15B small diameter end 16 Large diameter end 17 Connection 17A Connection tube member 17B Connection tube member 17a One split cylinder member 17b The other split cylinder member 19A engagement projection 19B Engaged through hole D step W Cover mounting target location

Claims (1)

(57) [range of utility model registration claims] 1. Multiple connected pipe covers (4A), (4B), (4
C), the pipe cover joint is connected to the connected pipe cover (4A), (4
B) is composed of a plurality of connecting portions (17) in which the connecting portion (17) is to be fitted, and a joint body (5) formed of a member different from the connecting portions (17). The small-diameter ends (15A), (15) in which the connected pipe covers (4A), (4B) are fitted
B), and a connecting cylinder member (17A) having a large-diameter end portion (16) fitted inside the joint body (5) at the other end side.
(17B), and the joint body (5) and the connection cylinder member (17A),
(17B) are configured so as to be able to be divided into two in the radial direction, and further, a cover mounting target portion (of a pair of divided main bodies (5A) and (5B) constituting the joint main body (5)) An engagement projection (19A) is provided on one of the divided main bodies (5A) installed on the W) side so as to protrude toward the pipe housing space, and a fixing screw insertion hole (8) is inserted into the cover mounting target location (W). ) and setting only, before Symbol connecting tube member (17A), (17B) a pair of divided cylindrical member constituting the (17a), (17b out of) one of which is installed in the cover attaching target portion (W) side Split tube member (17
a), the engaged through-hole (1) into which the engaging projection (19A) is freely engageable.
9B), and a step portion for positioning the tip end of the connected pipe cover is provided on the inner peripheral portion of the one divided tubular member (17a) closer to the small diameter end than the engaged through hole (19B).
A pipe cover joint provided with (D) . 2. The engagement protrusion (19A) and the fixing screw insertion hole (8);
The connected pipe is provided on the inner peripheral portion of the divided main body (5A) between
A stopper (9) for positioning the tip of the cover is provided.
The pipe cover joint according to claim 1 of the utility model registration claim.
hand.