CN219571011U - Flow equalizing structure and electric valve - Google Patents
Flow equalizing structure and electric valve Download PDFInfo
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- CN219571011U CN219571011U CN202320318999.9U CN202320318999U CN219571011U CN 219571011 U CN219571011 U CN 219571011U CN 202320318999 U CN202320318999 U CN 202320318999U CN 219571011 U CN219571011 U CN 219571011U
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- flow equalizing
- cover
- actuating mechanism
- valve body
- exhaust port
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model relates to a flow equalizing structure and an electric valve, which are used for solving the problem that the oil smoke discharge amount of an exhaust port in unit time cannot be further increased. The flow equalizing structure comprises: a driving mechanism; the actuating mechanism is arranged on the driving mechanism; at least two sections of flow equalizing covers are in sliding connection with each other, each section of flow equalizing cover is provided with a flow equalizing groove, all flow equalizing grooves are spliced into a flow equalizing channel, at least one flow equalizing groove is provided with an upper opening, all upper openings enclose an exhaust port, the flow equalizing grooves positioned at the first section of flow equalizing cover are provided with air inlets, and medium entering the flow equalizing channel from the air inlets is discharged outside the flow equalizing structure through the exhaust port; the sliding block is arranged on the flow equalizing cover at the tail section; the sliding block is movably arranged on the actuating mechanism, and after the actuating mechanism drives the actuating mechanism to move, the actuating mechanism drives the flow equalizing cover positioned at the tail section to move through the sliding block, so that at least two sections of flow equalizing covers relatively slide, and the size of the exhaust port is changed.
Description
Technical Field
The utility model relates to a flow equalizing structure and an electric valve.
Background
The electric valve comprises a valve body and a valve plate, wherein the valve body is provided with a shaft hole and an exhaust port, the valve plate is provided with a rotating shaft, the rotating shaft is inserted into the shaft hole to enable the valve plate to be rotationally connected with the valve body, and the valve plate can open or close the exhaust port after the rotating shaft is inserted into the shaft hole and drives the valve plate to rotate relative to the valve body.
After the valve plate closes the exhaust port, the projection of the valve plate on the vertical surface covers the exhaust port, and when the valve plate closes the exhaust port (the valve plate is parallel to the exhaust port), the exhaust port cannot discharge oil smoke. After the valve plate opens the exhaust port, the projection of the valve plate on the vertical surface cannot cover the exhaust port, and when the valve plate opens the exhaust port, the lampblack of the range hood can be discharged into the flue through the exhaust port.
The projection superposition area size of the exhaust port and the valve plate on the vertical surface can be used for judging the opening degree of the exhaust port, and when the valve plate closes the exhaust port, the opening degree of the exhaust port is minimum, and at the moment, the exhaust port cannot discharge oil smoke. When the valve plate is perpendicular to the exhaust port, the opening of the exhaust port is maximum, and at the moment, the exhaust port has the largest oil smoke emission in unit time.
The motor drives the rotating shaft to rotate relative to the shaft hole through the output shaft so as to realize that the rotating shaft drives the valve plate to adjust the opening of the exhaust port.
However, the existing electric valve is limited by the exhaust port, and when the valve plate is perpendicular to the exhaust port, the oil smoke discharge amount of the exhaust port in unit time cannot be further increased.
Disclosure of Invention
The utility model aims to solve the problem of providing a flow equalizing structure and an electric valve, and the position of an exhaust port on the electric valve is changed to further increase the oil smoke discharge amount of the exhaust port in unit time.
In order to solve the problems, the utility model provides the following technical scheme:
the flow equalizing structure comprises:
a driving mechanism;
the actuating mechanism is arranged on the driving mechanism;
at least two sections of flow equalizing covers are in sliding connection with each other, each section of flow equalizing cover is provided with a flow equalizing groove, all flow equalizing grooves are spliced into a flow equalizing channel, at least one flow equalizing groove is provided with an upper opening, all upper openings enclose an exhaust port, the flow equalizing grooves positioned at the first section of flow equalizing cover are provided with air inlets, and medium entering the flow equalizing channel from the air inlets is discharged outside the flow equalizing structure through the exhaust port;
the sliding block is arranged on the flow equalizing cover at the tail section;
the sliding block is movably arranged on the actuating mechanism, and after the actuating mechanism drives the actuating mechanism to move, the actuating mechanism drives the flow equalizing cover positioned at the tail section to move through the sliding block, so that at least two sections of flow equalizing covers relatively slide, and the size of the exhaust port is changed.
The flow equalizing structure comprises at least two sections of flow equalizing covers, wherein each section of flow equalizing cover is provided with a flow equalizing groove, at least one flow equalizing groove is provided with an upper opening, all upper openings enclose an exhaust port, a medium entering a flow equalizing channel from an air inlet is discharged outside the flow equalizing structure through the exhaust port, after a driving mechanism drives an actuating mechanism to move, the actuating mechanism drives the flow equalizing cover positioned at the tail section to move through a sliding block, so that the at least two sections of flow equalizing covers relatively slide, and the size of the exhaust port is changed. By the design, the exhaust port arranged on the flow equalizing structure replaces the exhaust port arranged on the valve body in the prior art.
It should be noted that: the medium may be oil smoke, air with liquid, etc.
In the prior art, after the exhaust port arranged on the valve body is replaced by the exhaust port arranged on the flow equalizing structure, the motor-driven valve realizes the adjustment of the medium discharge amount through the flow equalizing structure.
According to common knowledge, the size adjustment range of the exhaust port arranged on the flow equalizing structure is limited by the cross section area of the exhaust passage in the horizontal direction, and the cross section area of the exhaust passage in the horizontal direction is far larger than the cross section area of the valve body in the vertical plane in the prior art, so that the utility model replaces the exhaust port arranged on the valve body in the prior art, and can effectively improve the adjustment range of the medium discharge amount of the exhaust port arranged on the flow equalizing structure.
Further, the flow equalizing cover at the tail section comprises a cover body and a sealing plate, wherein the sealing plate is arranged at the tail end of the cover body, and the sliding block is detachably arranged on the sealing plate. When the flow equalizing cover positioned at the tail section comprises a cover body and a sealing plate, and the sealing plate is arranged at the tail end of the cover body, the flow equalizing cover does not need to be additionally provided with a power mechanism, namely, the flow equalizing cover can change the size of the exhaust port under the drive of the sealing plate. By adopting the design, the flow equalizing cover and the sealing plate share the actuating mechanism, so that the manufacturing cost of the flow equalizing structure can be effectively reduced, and the integral structure of the flow equalizing structure can be simplified.
Further, the driving mechanism comprises a motor, the actuating mechanism comprises a screw rod, the sliding block comprises a screw rod nut in threaded connection with the screw rod, and the motor drives the screw rod to rotate, so that the screw rod drives the flow equalizing cover located at the tail section to axially move along the screw rod through the screw rod nut. By the design, the accuracy of axial movement of the flow equalizing cover at the tail section along the screw rod can be accurately controlled.
Further, a driving gear is arranged on an output shaft of the motor, the executing mechanism further comprises a driven gear arranged on the screw rod, and the driving gear is meshed with the driven gear; or, the actuating mechanism further comprises a coupler, and an output shaft of the motor is fixedly connected with the screw rod through the coupler; or, the output shaft of the motor is fixedly connected with the screw rod.
The electric valve includes:
the current sharing structure is the current sharing structure according to any one of the technical schemes;
the hose connector is used for connecting a hose of the range hood;
the hose connector is arranged on the front surface of the valve body and is connected with the valve body to form a mounting channel, an inlet and an outlet are arranged on the mounting channel, and at least part of the flow equalizing structure is arranged in the mounting channel;
after the driving mechanism drives the actuating mechanism to move forward or backward, the actuating mechanism drives a flow equalizing cover positioned at the tail section to move through a sliding block so as to close the outlet; after the actuating mechanism drives the actuating mechanism to move reversely, the actuating mechanism drives the flow equalizing cover positioned at the tail section to move through the sliding block, so that the size of the opening of the exhaust port positioned outside the installation channel is changed.
In the utility model, the electric valve comprises a hose connector and a valve body, wherein the hose connector is arranged on the front surface of the valve body and is connected with the valve body to form a mounting channel, an inlet and an outlet are arranged on the mounting channel, and after the actuating mechanism is driven to move forward by the driving mechanism, the actuating mechanism drives the flow equalizing cover positioned at the tail section to move through the sliding block so as to close the outlet. By the design, the flow equalizing cover at the tail section replaces a valve plate in the prior art.
The exhaust port of the existing electric valve is easy to leak smoke, and the specific reason is that: the output shaft of the motor can generate rotation deviation after being used for a period of time, namely, the output shaft of the motor can not drive the valve plate to close the exhaust port within the specified working time, and when the output shaft of the motor drives the valve plate to completely close the exhaust port, the exhaust port can generate oil smoke leakage.
After the valve plate in the prior art is replaced by the flow equalizing cover positioned at the tail section, the electric valve realizes the closing of the outlet through the flow equalizing cover positioned at the tail section; in the prior art, after the exhaust port arranged on the valve body is replaced by the exhaust port surrounded by all the upper openings, the electric valve realizes the adjustment of the discharge amount of the medium through the relative sliding of at least two sections of flow equalizing covers. When the flow equalizing cover at the tail section and the flow equalizing covers at least two sections have different functions when being started on the electric valve, the flow equalizing cover at the tail section does not need to take the function of medium emission adjustment into consideration, the flow equalizing cover at the tail section does not need to take the function of closing the outlet, in other words, the electric valve improves the reliability of closing the outlet through the flow equalizing cover at the tail section, and the electric valve improves the adjustment range of medium emission through the flow equalizing cover at least two sections. By adopting the design, the utility model solves the technical problems that the electric valve in the prior art cannot simultaneously solve the problems of easy leakage of the exhaust port and small adjustment range of the medium discharge amount.
Further, a sealing groove communicated with the outlet is formed in the back face of the valve body, and when the flow equalizing cover located at the tail section closes the outlet, at least part of the flow equalizing cover located at the tail section is inserted into the sealing groove. By means of the design, the contact area between the flow equalizing cover at the tail section and the valve body is increased through the sealing groove, so that the reliability of closing the outlet of the flow equalizing cover at the tail section is improved.
Further, a first sealing ring is clamped between the flow equalizing cover positioned at the tail section and the sealing groove. By the design, the reliability of closing the outlet of the flow equalizing cover at the tail section is further improved.
Further, the actuating mechanism comprises a base, the base is arranged on the valve body positioned outside the installation channel, and the cover positioned at the first section Duan Junliu is in sliding connection with the base. Because the slider locates the cover that flow equalizes that is located the end, consequently, when the base locates the valve body that is located outside the installation passageway to the slider movably locates actuating mechanism, valve body and end cover that flow equalizes all are connected with actuating mechanism. By the design, the interval distance between the valve body and the end section flow equalizing cover is accurately limited by the actuating mechanism.
When the base is arranged on the valve body outside the installation channel, the base does not occupy the inner space of the installation channel, and the base does not become a medium flow path between the installation channel and the exhaust channel. By the design, medium in the exhaust passage is prevented from entering the installation channel from the base.
Further, when the hose connector is disposed on the front surface of the valve body, an inner cavity and an outer cavity which are not communicated with each other are formed between the hose connector and the valve body, the inner cavity is the mounting channel, and the outer cavity is used for accommodating at least part of the driving mechanism and at least part of the executing mechanism. By the design, when the driving mechanism and the actuating mechanism are installed on the valve body, whether the driving mechanism and the actuating mechanism leak media in the exhaust passage into the installation channel or not is not required to be considered.
Further, when the hose connector is arranged on the front face of the valve body, the driving mechanism is arranged in the installation channel and is provided with a driving shaft, the front face of the valve body is provided with an installation groove, the driving mechanism is arranged on the front face of the valve body, after the driving mechanism is arranged on the front face of the valve body, a second sealing ring is clamped between the installation groove and the driving mechanism, and the driving shaft penetrates through the channel of the second sealing ring. By the design, medium in the exhaust passage is prevented from entering the installation channel through a gap between the driving mechanism and the valve body.
If a gap exists between the driving mechanism and the valve body, because the medium flow rate in the exhaust passage is different from the medium flow rate in the installation passage, when the medium flow rate in the installation passage is larger than the medium flow rate in the exhaust passage, the installation passage can generate suction, and the medium in the exhaust passage enters the installation passage through the gap between the driving mechanism and the valve body under the action of the suction force in the installation passage, so that the smoke discharging effect of the electric valve can be greatly weakened.
Further, the electric valve further comprises a flange, and the flange is detachably arranged on the back surface of the valve body. By the design, the flow equalizing structure is protected through the flange, so that the probability of collision between the flow equalizing structure and the exhaust passage in the installation process is reduced.
Drawings
Fig. 1 is a perspective view of a flow equalizing structure in a preferred embodiment of the present utility model;
fig. 2 is a perspective view of a third section of flow equalizing cover in the preferred embodiment of the present utility model;
fig. 3 is a perspective view of a second section flow straightener in a preferred embodiment of the present utility model;
fig. 4 is a perspective view of a first section of flow equalizing cover in a preferred embodiment of the present utility model;
FIG. 5 is a perspective view of the exhaust duct and the electrically operated valve (flow straightener at the end section opens the outlet) in a preferred embodiment of the present utility model;
FIG. 6 is a perspective view of the exhaust duct and the electrically operated valve (flow straightener at the end closing the outlet) in a preferred embodiment of the utility model;
FIG. 7 is a perspective view of an electrically operated valve (seal cap open outlet) in accordance with a preferred embodiment of the present utility model;
FIG. 8 is a top view of the valve body and hose connector in a preferred embodiment of the present utility model;
FIG. 9 is a cross-sectional view at A-A of FIG. 8;
FIG. 10 is a top view of an electrically operated valve (flow straightener at the end section closing the outlet) in accordance with a preferred embodiment of the present utility model;
FIG. 11 is a cross-sectional view at B-B in FIG. 10;
FIG. 12 is a first top view of the electrically operated valve (flow straightener at end section with outlet open) in a preferred embodiment of the present utility model;
FIG. 13 is a cross-sectional view taken at C-C of FIG. 12;
FIG. 14 is a second top view of the electrically operated valve (flow straightener at the end section with outlet open) in the preferred embodiment of the present utility model;
fig. 15 is a cross-sectional view at D-D in fig. 14.
Detailed Description
The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.
Referring to fig. 1, the current equalizing structure 1 includes:
a driving mechanism 11;
an actuator 12, the actuator 12 being provided to the driving mechanism 11;
at least two sections of flow equalizing covers are in sliding connection with each other, each section of flow equalizing cover is provided with a flow equalizing groove, all flow equalizing grooves are spliced into a flow equalizing channel 10, at least one flow equalizing groove is provided with an upper opening, all upper openings enclose an exhaust port 102, the flow equalizing groove positioned at the first section of flow equalizing cover is provided with an air inlet 101, and medium entering the flow equalizing channel 10 from the air inlet 101 is discharged outside the flow equalizing structure 1 through the exhaust port 102;
the sliding block 16 is arranged on the flow equalizing cover at the tail section;
the sliding block 16 is movably arranged on the executing mechanism 12, and after the driving mechanism 11 drives the executing mechanism 12 to move, the executing mechanism 12 drives the flow equalizing cover positioned at the tail section to move through the sliding block 16, so that at least two sections of flow equalizing covers relatively slide, and the size of the exhaust port is changed.
In the utility model, the flow equalizing structure 1 comprises at least two sections of flow equalizing covers, each section of flow equalizing cover is provided with a flow equalizing groove, at least one flow equalizing groove is provided with an upper opening, all the upper openings enclose an exhaust port 102, a medium entering the flow equalizing channel 10 from an air inlet 101 is discharged to the outside of the flow equalizing structure 1 through the exhaust port 102, after a driving mechanism 11 drives an actuating mechanism 12 to move, the actuating mechanism 12 drives the flow equalizing cover positioned at the tail section to move through a sliding block 16, so that the at least two sections of flow equalizing covers relatively slide, and the size of the exhaust port is changed. The electric valve replaces the "exhaust port provided on the valve body" in the prior art by the exhaust port 102 provided on the flow equalizing structure 1.
In the prior art, after the exhaust port arranged on the valve body is replaced by the exhaust port 102 arranged on the flow equalizing structure 1, the motor-driven valve realizes the adjustment of the medium discharge amount through the flow equalizing structure 1.
It is clear from common knowledge that the size adjustment range of the exhaust port 102 arranged on the flow equalizing structure 1 is limited by the cross section area of the exhaust passage 100 in the horizontal direction, and the cross section area of the exhaust passage 100 in the horizontal direction is far larger than the cross section area of the valve body in the vertical plane in the prior art, so that the utility model replaces the exhaust port 10 arranged on the valve body in the prior art by the exhaust port 10 arranged on the flow equalizing structure 1, and can effectively improve the adjustment range of the medium discharge amount of the exhaust port 10 arranged on the flow equalizing structure 1.
As can be seen in conjunction with fig. 5 and fig. 6, the "cross-sectional area of the exhaust passage 100 in the horizontal direction" is the cross-sectional area of the flow passage 1001 on the exhaust passage 100 in the horizontal direction, and as can also be seen in conjunction with fig. 5 and fig. 13, the cross-sectional area of the flow passage 1001 in the horizontal direction is much larger than the cross-sectional area of the outlet 202 in the vertical plane. Here, the cross section of the flow passage 1001 in the horizontal direction may be parallel to the axis of the screw 121 in fig. 13 with reference to fig. 13, and the cross section of the outlet 202 in the vertical plane may be perpendicular to the axis of the screw 121 in fig. 13.
Referring to fig. 1, 2, 3 and 4, the flow equalizing structure 1 of the present embodiment includes a first flow equalizing cover 13, a second flow equalizing cover 14 and a third flow equalizing cover 15, at least a portion of the first flow equalizing cover 13 is disposed on the mounting channel 20, the first flow equalizing cover 13 is provided with a first flow equalizing groove 131, the first flow equalizing groove 131 is provided with a first upper opening 1311, the second flow equalizing cover 14 is provided with a second flow equalizing groove 141, the second flow equalizing groove 141 is provided with a second upper opening 1411, the third flow equalizing cover 15 is provided with a third flow equalizing groove 151, the third flow equalizing groove 141 is provided with a third upper opening 1511, and the first upper opening 1311, the second upper opening 1411 and the third upper opening 1511 enclose an exhaust port 102.
In other embodiments of the present utility model, one of the first, second and third flow equalizing grooves is provided with an upper opening, which is the exhaust port; or, a first upper opening is arranged on the first uniform flow groove, a second upper opening is arranged on the second uniform flow groove, and the first upper opening and the second upper opening enclose an exhaust port; or, be equipped with the second upper shed on the second uniform flow groove, be equipped with the third upper shed on the third uniform flow groove, second upper shed and third upper shed enclose into the gas vent.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in this embodiment, a limiting unit is disposed on each section of current sharing cover of the current sharing structure, and the current sharing cover limits the movement range of the adjacent current sharing cover through the limiting unit, specifically: the limiting unit of the first flow equalizing cover 13 comprises a sliding rail 133 and an outer limiting surface 134, at least part of the second flow equalizing cover 14 is arranged in the first flow equalizing cover 13, the limiting unit of the second flow equalizing cover 14 comprises a sliding groove 143, a protrusion 144 and an inner limiting surface 147, the sliding groove 143 comprises an inner groove wall 145 and an outer groove wall 146, at least part of the third flow equalizing cover 15 is arranged in the second flow equalizing cover 14, the limiting unit of the third flow equalizing cover 15 comprises a limiting block 153, when at least part of the second flow equalizing cover 14 is arranged in the first flow equalizing cover 13, and at least part of the third flow equalizing cover 15 is arranged in the second flow equalizing cover 14, the limiting block 153 is inserted into the sliding groove 143 and can slide along the sliding groove 143 to abut against the inner groove wall 145 or the outer groove wall 146, and the protrusion 144 is inserted into the sliding rail 133 and can slide along the sliding rail 133 to abut against the inner limiting surface 147 against the outer limiting surface 134.
Preferably, the chute 143 is surrounded by a protrusion 144, an inner slot wall 145 and an outer slot wall 146. When the chute 143 is surrounded by the protrusion 144, the inner wall 145 and the outer wall 146, the first flow equalizing cover 13 and the third flow equalizing cover 15 each define a sliding direction by the protrusion 144 of the second flow equalizing cover 14. By the design, the probability of inclination of the first flow equalizing cover 13 relative to the third flow equalizing cover 15 is reduced.
In other embodiments of the present utility model, the flow equalizing structure may include two sections of flow equalizing cover; or, the flow equalizing structure can also comprise four sections of flow equalizing covers; or, the flow equalizing structure can also comprise six sections of flow equalizing covers.
Referring to fig. 1, 12 and 13, the flow equalizing cover at the end section is a third flow equalizing cover 15 in this embodiment (of course, in other embodiments of the present utility model, the flow equalizing cover at the end section may be other flow equalizing covers except for the third flow equalizing cover 15), the third flow equalizing cover 15 includes a cover 1501 and a sealing plate 1502, the sealing plate 1502 is disposed at the end of the cover 1501, and the slider 16 is detachably disposed on the sealing plate 1502. When the third flow equalizing cover 15 includes the cover 1501 and the sealing plate 1502, and the sealing plate 1502 is disposed at the end of the cover 1501, the flow equalizing cover will not need to be additionally provided with a power mechanism, i.e. all flow equalizing covers can change the size of the exhaust port 102 under the driving of the sealing plate 1502. The electric valve shares one actuating mechanism 12 with the sealing plate 1502 through all flow equalizing covers, so that the manufacturing cost of the flow equalizing structure 1 can be effectively reduced, and the integral structure of the flow equalizing structure 1 can be simplified.
In the present utility model, the slider 16 is provided to the sealing plate 1502 in two ways: in the first structure, referring to fig. 12 and 13, the slider 16 is indirectly disposed on the sealing plate 1502 through the connecting plate 1503, which can reduce the length of the screw 121 to reduce the manufacturing cost of the actuator 12; in the second structure, referring to fig. 14 and 15, the slider 16 is directly disposed on the sealing plate 1502, which can increase the connection strength between the slider 16 and the sealing plate 1502.
Referring to fig. 10 and 11, the driving mechanism 11 includes a motor, the actuating mechanism 12 includes a screw rod 121, the slider 16 includes a screw nut in threaded connection with the screw rod 121, and the motor drives the screw rod 121 to rotate, so that the screw rod 121 drives the third flow equalizing cover 15 to axially move along the screw rod 121 through the screw nut.
Referring to fig. 1, the actuator 12 further includes a mounting seat 123, two ends of the screw rod 121 are respectively rotatably connected with the mounting seat 123, and the screw rod 121 cannot axially move during rotation of the screw rod 121 relative to the mounting seat 123.
In the present utility model, the actuator 12 is provided to the motor by three means: referring to fig. 2, 11 and 13, in the first structure, a driving gear 112 is disposed on an output shaft 111 of the motor, the actuator 12 further includes a driven gear 122 disposed on a screw rod 121, the driving gear 112 is meshed with the driven gear 122, the motor drives the driving gear 112 to rotate through the output shaft 111, and the driving gear 112 drives the screw rod 121 to rotate through the driven gear 122, so that the screw rod 121 drives the slider 16 to move along an axial direction of the screw rod 121; in a second structure, referring to fig. 14 and 15, the actuator 12 further includes a coupling 124, an output shaft 111 of the motor is fixedly connected with the screw rod 121 through the coupling 124, and the output shaft 111 of the motor drives the screw rod 121 to rotate through the coupling 124, so as to realize that the screw rod 121 drives the slider 16 to move along the axial direction of the screw rod 121; in the third structure, the output shaft 111 of the motor is fixedly connected with the screw rod 121, and the output shaft 111 of the motor drives the screw rod 121 to rotate so as to realize that the screw rod 121 drives the sliding block 16 to move along the axial direction of the screw rod 121.
In other embodiments of the present utility model, the driving mechanism includes a hydraulic pump, the executing mechanism includes a push rod, the push rod is arranged on the hydraulic pump, the sealing cover is arranged on the push rod, the hydraulic pump drives the flow equalizing structure and the sealing cover to move towards or away from the outlet through the push rod; or, the driving mechanism comprises an air pump, the actuating mechanism comprises a push rod, the push rod is arranged on the air pump, the sealing cover is arranged on the push rod, and the air pump drives the flow equalizing structure and the sealing cover to move towards the direction close to or far away from the outlet through the push rod.
Referring to fig. 5, 6 and 13, the electric valve of the present utility model includes:
the current sharing structure is the current sharing structure 1 in the embodiment;
the hose connector 2 is used for connecting a hose of the range hood;
the valve body 3, the hose connector 2 is arranged on the front surface of the valve body 3 and forms a mounting channel 20 after being connected, an inlet 201 and an outlet 202 are arranged on the mounting channel 20, and at least part of the flow equalizing structure 1 is arranged in the mounting channel 20;
wherein, the driving mechanism 11 drives the actuating mechanism 12 to move forward or backward, after the driving mechanism 11 drives the actuating mechanism 12 to move forward, the actuating mechanism 12 drives the flow equalizing cover at the end section to move through the sliding block 16 so as to close the outlet 202, as shown in fig. 11; after the driving mechanism 11 drives the actuating mechanism 12 to move reversely, the actuating mechanism 12 drives the flow equalizing cover at the tail section to move through the sliding block 16, so that the opening size of the air outlet 102 outside the mounting channel 20 is changed, as shown in fig. 13 and 15.
Referring to fig. 1, 7, 8 and 9, the electric valve includes a hose connector 2 and a valve body 3, the hose connector 2 is disposed on the front surface of the valve body 3 and connected to form a mounting channel 20, an inlet 201 and an outlet 202 are disposed on the mounting channel 20, and after the driving mechanism 11 drives the actuating mechanism 12 to move forward, the actuating mechanism 12 drives the third flow equalizing cover 15 to move through the sliding block 16 so as to close the outlet 202. The electric valve replaces a valve plate in the prior art by the flow equalizing cover positioned at the tail section.
The exhaust port of the existing electric valve is easy to leak smoke, and the specific reason is that: the output shaft of the motor can generate rotation deviation after being used for a period of time, namely, the output shaft of the motor can not drive the valve plate to close the exhaust port within the specified working time, and when the output shaft of the motor drives the valve plate to completely close the exhaust port, the exhaust port can generate oil smoke leakage.
After the valve plate in the prior art is replaced by the flow equalizing cover at the tail section, the electric valve of the utility model realizes the closing of the outlet 202 through the flow equalizing cover at the tail section; in the prior art, after the exhaust port arranged on the valve body is replaced by the exhaust port 102 surrounded by all the upper openings, the electric valve realizes the adjustment of the discharge amount of the medium through the relative sliding of at least two sections of flow equalizing covers. When the effect that the flow equalizing cover positioned at the tail section and the flow equalizing covers at least two sections slide relatively is different and the flow equalizing cover positioned at the tail section is started on the electric valve, the function of medium emission adjustment is not required to be considered, the function of closing the outlet 202 is not required to be considered when the flow equalizing covers at the tail section slide relatively, in other words, the reliability of closing the outlet 202 is improved by the electric valve through the flow equalizing cover positioned at the tail section, and the adjustment range of medium emission is improved by the electric valve through the function of sliding the flow equalizing covers at least two sections relatively.
Referring to fig. 7 and 9, the back surface of the valve body 3 is provided with a sealing groove 221 communicated with the outlet 202, and when the flow equalizing cover at the end section closes the outlet 202, at least part of the flow equalizing cover at the end section is inserted into the sealing groove 221. The electric valve increases the contact area between the flow equalizing cover at the tail section and the valve body 3 through the sealing groove 221, so as to improve the reliability of closing the outlet 202 of the flow equalizing cover at the tail section.
Preferably, a first sealing ring (not marked) is clamped between the flow equalizing cover and the sealing groove at the tail section, and the reliability of closing the outlet 202 by the flow equalizing cover at the tail section is further improved by the first sealing ring.
The first sealing ring is arranged on the flow equalizing cover positioned at the tail section in the embodiment. In other embodiments of the present utility model, the first seal ring may also be disposed in the seal groove; or the first sealing ring is arranged on the flow equalizing cover and the sealing groove at the tail section.
Referring to fig. 1, 9 and 13, the actuator 12 includes a base 124, the base 124 being disposed on the valve body 3 outside the mounting passage 20, and a cover disposed on the head section Duan Junliu slidably coupled to the base 124. Since the slider 16 is disposed on the flow equalizing cover at the end section, when the base 124 is disposed on the valve body 3 outside the installation channel 20 and the slider 16 is movably disposed on the actuator 12, both the valve body 3 and the end section flow equalizing cover are connected with the actuator 12, i.e. the interval distance between the valve body 3 and the end section flow equalizing cover is precisely defined by the actuator 12.
In the present utility model, the driving mechanism 11 has two structures: first structure, see fig. 13, when the hose connector 2 is disposed on the front side of the valve body 3, an inner cavity and an outer cavity 30 which are not communicated with each other are formed between the hose connector 2 and the valve body 3, the inner cavity is a mounting channel 20, the outer cavity 30 is used for accommodating at least part of the driving mechanism 11 and at least part of the actuating mechanism 12, in this structure, when the driving mechanism 11 and the actuating mechanism 12 are mounted on the valve body 3, the driving mechanism 11 and the actuating mechanism 12 do not need to consider whether the medium in the exhaust passage 100 leaks into the mounting channel 20. In the second configuration, referring to fig. 15, when the hose connector 2 is provided on the front surface of the valve body 3, the driving mechanism 11 is located in the installation passage 20, and at this time, a driving shaft (the driving shaft is an output shaft 111 of a motor in this embodiment) is provided on the driving mechanism 11.
Of course, in other embodiments of the utility model, the drive shaft may also be a pushrod of a cylinder; or, the driving shaft is a push rod of a hydraulic cylinder), the front surface of the valve body 3 is provided with a mounting groove (not labeled), the driving mechanism 11 is arranged on the front surface of the valve body 3, after the driving mechanism 11 is arranged on the front surface of the valve body 3, the second sealing ring 17 is clamped between the mounting groove and the driving mechanism 11, and the driving shaft penetrates through a channel of the second sealing ring 17.
If there is a gap between the driving mechanism 11 and the valve body 3, since the flow rate of the medium in the exhaust passage 100 is different from the flow rate of the medium in the installation passage 20, when the flow rate of the medium in the installation passage 20 is greater than the flow rate of the medium in the exhaust passage 100, the installation passage 20 generates suction force, and the medium in the exhaust passage 100 enters the installation passage 20 through the gap between the driving mechanism 11 and the valve body 3 under the action of the suction force in the installation passage 20, which greatly weakens the smoke exhausting effect of the electric valve.
Referring to fig. 7, the electric valve further includes a flange 4, and the flange 4 is detachably provided on the back surface of the valve body 3. The electric valve protects the flow equalizing structure 1 through the flange 4 so as to reduce the probability of collision between the flow equalizing structure 1 and the exhaust passage 100 in the installation process.
Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 13, the flow equalizing structure 1 further includes a guide rail and a guide block, the guide rail is disposed on one section of the two sections of adjacent flow equalizing covers, the guide block is disposed on the other section of the two sections of adjacent flow equalizing covers, the guide block is movably disposed on the guide rail, when one section of the two sections of adjacent flow equalizing covers moves relative to the other section, the guide block moves along the guide rail, and specifically: the valve body 3 is provided with a first guide block 22, the first flow equalizing cover 13 is provided with a second guide block 132 and a first guide rail 135, the second flow equalizing cover 14 is provided with a third guide block 142 and a second guide rail 148, the third flow equalizing cover 15 is provided with a third guide rail 152, the first guide rail 135 can slide along the first guide block 22, the second guide rail 148 can slide along the second guide rail 148, and the third guide block 142 can slide along the third guide rail 152.
It will be appreciated that: the guide rail and the guide block can be integrally formed with the corresponding flow equalizing cover or formed into a whole through connection.
While the utility model has been described in terms of specific embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but includes, but is not limited to, those shown in the drawings and described in the foregoing detailed description. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.
Claims (10)
1. Flow equalizing structure, its characterized in that includes:
a driving mechanism;
the actuating mechanism is arranged on the driving mechanism;
at least two sections of flow equalizing covers are in sliding connection with each other, each section of flow equalizing cover is provided with a flow equalizing groove, all flow equalizing grooves are spliced into a flow equalizing channel, at least one flow equalizing groove is provided with an upper opening, all upper openings enclose an exhaust port, the flow equalizing grooves positioned at the first section of flow equalizing cover are provided with air inlets, and medium entering the flow equalizing channel from the air inlets is discharged outside the flow equalizing structure through the exhaust port;
the sliding block is arranged on the flow equalizing cover at the tail section;
the sliding block is movably arranged on the actuating mechanism, and after the actuating mechanism drives the actuating mechanism to move, the actuating mechanism drives the flow equalizing cover positioned at the tail section to move through the sliding block, so that at least two sections of flow equalizing covers relatively slide, and the size of the exhaust port is changed.
2. The flow equalizing structure of claim 1, wherein the flow equalizing cover at the end section comprises a cover body and a sealing plate, the sealing plate is arranged at the tail end of the cover body, and the sliding block is detachably arranged at the sealing plate.
3. The flow equalizing structure of claim 1, wherein the driving mechanism comprises a motor, the actuating mechanism comprises a screw rod, the sliding block comprises a screw rod nut in threaded connection with the screw rod, and the motor drives the screw rod to rotate so that the screw rod drives the flow equalizing cover positioned at the tail section to axially move along the screw rod through the screw rod nut.
4. The flow equalizing structure according to claim 3, wherein a driving gear is arranged on an output shaft of the motor, the actuating mechanism further comprises a driven gear arranged on the screw rod, and the driving gear is meshed with the driven gear; or, the actuating mechanism further comprises a coupler, and an output shaft of the motor is fixedly connected with the screw rod through the coupler; or, the output shaft of the motor is fixedly connected with the screw rod.
5. An electrically operated valve, comprising:
a current equalizing structure, which is the current equalizing structure according to any one of claims 1 to 4;
the hose connector is used for connecting a hose of the range hood;
the hose connector is arranged on the front surface of the valve body and is connected with the valve body to form a mounting channel, an inlet and an outlet are arranged on the mounting channel, and at least part of the flow equalizing structure is arranged in the mounting channel;
after the driving mechanism drives the actuating mechanism to move forward or backward, the actuating mechanism drives a flow equalizing cover positioned at the tail section to move through a sliding block so as to close the outlet; after the actuating mechanism drives the actuating mechanism to move reversely, the actuating mechanism drives the flow equalizing cover positioned at the tail section to move through the sliding block, so that the size of the opening of the exhaust port positioned outside the installation channel is changed.
6. The electrically operated valve of claim 5 wherein said back surface of said valve body is provided with a seal groove in communication with said outlet, and wherein when said flow equalizing cover at the end section closes said outlet, at least a portion of said flow equalizing cover at the end section is inserted into said seal groove.
7. The electrically operated valve of claim 6 wherein a first seal ring is sandwiched between said flow straightener at the end section and said seal groove.
8. The electrically operated valve of claim 5 wherein said actuator comprises a base, said base being disposed on a valve body located outside said mounting channel, said flow equalizing housing being slidably coupled to said base.
9. The electrically operated valve of claim 5 wherein when said hose connector is disposed on the front face of said valve body, an interior cavity and an exterior cavity are formed between said hose connector and said valve body that are not in communication with each other, said interior cavity being said mounting channel, said exterior cavity being adapted to receive at least a portion of said drive mechanism and at least a portion of said actuator mechanism; or when the hose connector is arranged on the front surface of the valve body, the driving mechanism is positioned in the mounting channel and is provided with a driving shaft, the front surface of the valve body is provided with a mounting groove, the driving mechanism is arranged on the front surface of the valve body, after the driving mechanism is arranged on the front surface of the valve body, a second sealing ring is clamped between the mounting groove and the driving mechanism, and the driving shaft penetrates through the channel of the second sealing ring.
10. The electrically operated valve of claim 5 further comprising a flange removably disposed on a back side of said valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320318999.9U CN219571011U (en) | 2023-02-17 | 2023-02-17 | Flow equalizing structure and electric valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320318999.9U CN219571011U (en) | 2023-02-17 | 2023-02-17 | Flow equalizing structure and electric valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219571011U true CN219571011U (en) | 2023-08-22 |
Family
ID=87654804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320318999.9U Active CN219571011U (en) | 2023-02-17 | 2023-02-17 | Flow equalizing structure and electric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219571011U (en) |
-
2023
- 2023-02-17 CN CN202320318999.9U patent/CN219571011U/en active Active
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