CN215065096U - Helium detection device for expansion valve - Google Patents
Helium detection device for expansion valve Download PDFInfo
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- CN215065096U CN215065096U CN202121375919.0U CN202121375919U CN215065096U CN 215065096 U CN215065096 U CN 215065096U CN 202121375919 U CN202121375919 U CN 202121375919U CN 215065096 U CN215065096 U CN 215065096U
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Abstract
The utility model provides a helium detection device for an expansion valve, which comprises an air cylinder and a box body, wherein the top surface of the box body is connected with the air cylinder, one side of the box body is provided with a straight slide rail, a box block, a door-shaped slide block, a base and a chassis, the air cylinder is connected with the box block, and the chassis is arranged below the base; the utility model discloses a testing device is a seal test to the expansion valve design of the expansion valve hole that arranges at the perpendicular, utilizes the cylinder to drive the slider to move through adopting the principle of mould core pulling structure and realizes the seal to the expansion valve, and simple structure easily realizes; the utility model discloses an extrusion through door shape slider will insert the second sealing plug extrusion of connection near the expansion valve downthehole, guaranteed that the device is in absolute sealed.
Description
Technical Field
The utility model relates to a detection device field, in particular to helium detects device for expansion valve.
Background
An expansion valve is an important component in a refrigeration system and is typically mounted between the reservoir and the evaporator. The expansion valve enables the medium-temperature high-pressure liquid refrigerant to be low-temperature low-pressure wet steam through throttling, then the refrigerant absorbs heat in the evaporator to achieve the refrigeration effect, and the expansion valve controls the flow of the valve through the change of the superheat degree of the tail end of the evaporator to prevent the phenomena of insufficient utilization of the area of the evaporator and cylinder knocking. In order to ensure the tightness of the expansion valve, a vacuum box method is generally adopted for leak detection in the prior art.
The vacuum box method is that the workpiece to be detected is filled with helium gas with specified pressure and then placed in a vacuum box with proper size, then the vacuum box is vacuumized to the leakage detection vacuum degree, and a leak detector measures helium signals in the vacuum box. If the workpiece leaks, helium gas enters the vacuum box through the leak hole to be detected; for example, chinese patent CN206281618U discloses a vacuum box helium leak detection system, in which a vacuum box is erected at a workpiece conveying station to be detected for leaking, a chassis for bearing the workpiece to be detected for leaking is arranged on the station, and a lifting cylinder for lifting the workpiece to be detected for leaking into the vacuum box is arranged below the chassis; the work piece will be waited to examine through the second sealing plug of releasing the cylinder and sealed, connects pump package and helium mass spectrometer leak detector at last and leak hunting, but this technical scheme need be equipped with the work piece and carry the workstation and carry, and the operation is more complicated, designs a more simple leak hunting structure and is the problem that this technical staff will solve.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a helium detection device for expansion valve, the device includes cylinder, box, the top surface of box is connected the cylinder, the side of box be equipped with the one side with the box is separable, be equipped with straight slide rail, case piece, door-shaped slider, base and chassis in the box, the cylinder is connected the case piece, the base below is equipped with the chassis, be equipped with the support column on the chassis, be equipped with corresponding through-hole respectively on base, chassis and the support column and place the pipeline, the pipeline is used for connecting expansion valve and evacuating device.
Preferably, one side of box is equipped with circular through-hole, circular through-hole internal connection evacuating device, evacuating device adopts prior art, not the utility model discloses it is protected, not explain in detail.
Preferably, the straight slide rail is fixedly connected in the box body.
Furthermore, the box block is L-shaped, a U-shaped groove is formed in the L-shaped long edge portion of the box block, the groove depth of the U-shaped radian bottom portion of the U-shaped groove is larger than the other groove depths of the U-shaped groove, the air cylinder is placed at the U-shaped radian bottom of the U-shaped groove, a thimble connected with the air cylinder is provided with a protruding end portion, and the protruding end portion is clamped in the U-shaped groove.
Furthermore, two connecting columns are arranged on the L-shaped long side portion of the box block, a first clamping block is arranged on one side of the box block and moves along the direction of the straight sliding rail, a sliding groove of the base is formed in the door-shaped sliding block, the connecting columns transversely penetrate through two ends of the L-shaped long side portion of the box block and are connected with the first clamping block, two rectangular through holes are formed in the L-shaped short side portion of the box block, and a limiting column is arranged in each rectangular through hole.
Preferably, spacing post below is equipped with the fixed block, be equipped with the through-hole in the fixed block, spacing post can alternate in the through-hole of fixed block, the fixed block is connected the second fixture block, second fixture block fixed connection straight slide rail, second fixture block and first fixture block shape size are unanimous, and when first fixture block slided along straight slide rail, spacing post alternates and is in the through-hole of fixed block, prevent that the case piece from having slight deviation at the removal in-process.
Furthermore, the junction of the L-shaped long edge part of the box block and the L-shaped short edge part of the box block is provided with a rectangular block, the rectangular block is fixedly connected with the box block, a T-shaped groove is arranged in the rectangular block, a matched T-shaped convex block is arranged in the T-shaped groove, and the T-shaped convex block is arranged on the upper top surface of the door-shaped sliding block.
Further, the spout includes rectangle spout and oblique spout, one side of door shape slider is equipped with the rectangle spout, the rectangle spout is in the cross-section of the last top surface of door shape slider is trapezoidal, the opposite side of door shape slider is equipped with oblique spout, oblique spout be in U-shaped through-hole is connected to the last top surface department of door shape slider, U-shaped through-hole has a backing plate.
Further, backing plate fixed connection the door-shaped slider, be equipped with waist shape hole in the backing plate, waist shape downthehole spacing pull rod that is equipped with, be equipped with the spring on the spacing pull rod, spacing pull rod removes in waist shape hole.
Furthermore, the shape of the base is consistent with that of the L-shaped block at 90 degrees anticlockwise, a rectangular protruding block is arranged on the L-shaped short side of the base and is matched with the rectangular sliding groove of the door-shaped sliding block, a rectangular groove and two circular grooves are arranged on the L-shaped long side of the base, a first sealing plug matched with the expansion valve hole is arranged in each circular groove, and an inclined sliding block is arranged in each rectangular groove.
Furthermore, an inclined protruding block matched with the inclined sliding groove is arranged on the inclined sliding block, the inclined protruding block slides in the inclined sliding groove, the cross section of the bottom of the inclined sliding block is rectangular, the inclined sliding block slides in the rectangular groove, an insert is arranged in the inclined sliding block, two second sealing plugs are arranged on the insert, and the size of each second sealing plug is matched with that of the corresponding expansion valve hole.
Preferably, the spring on the limiting pull rod ensures that the base plate and the insert block are always in a tensioned state, so that the door-shaped sliding block and the base are also always in a tensioned state, and the second sealing plug is always abutted against the expansion valve.
Preferably, the insert ensures that the central positions of the second sealing plug and the expansion valve hole are kept on the same horizontal line, and if the second sealing plug is not sealed with the expansion valve hole, the limiting pull rod moves in the waist-shaped hole until the central positions of the second sealing plug and the expansion valve hole are adjusted on the same horizontal line.
Preferably, the rectangular protruding block and the inclined sliding block on the base slide along the rectangular sliding groove and the inclined sliding groove of the door-shaped sliding block respectively.
Furthermore, a support column is arranged on the chassis, corresponding through holes for placing pipelines are respectively arranged on the base, the chassis and the support column, and the pipelines are used for connecting the expansion valve and the vacuum-pumping device.
Preferably, the step of sealing the device is:
(1) placing the expansion valve on the base;
(2) sealing the box body;
(3) under the action of the cylinder, the door-shaped sliding block is extruded downwards and moves along the direction of the rectangular protruding block on the base;
(4) the inclined sliding block slides in the rectangular groove under the extrusion of the door-shaped sliding block to drive the second sealing plug on the insert block to seal the expansion valve hole.
The utility model discloses following beneficial effect has:
(1) the utility model discloses a verifying attachment is a kind of seal test to the expansion valve design at the expansion valve hole of arranging perpendicularly, utilizes the cylinder to drive the slider to move through adopting the principle of the core pulling structure of the mould and realizes the seal to the expansion valve, simple structure easily realizes;
(2) the utility model is provided with the limiting pull rod with the spring on the insert, so as to ensure that the space between the base plate and the insert is always in a tensioning state, thereby ensuring that the door-shaped sliding block and the base are also always in a tensioning state to ensure that the second sealing plug is always close to the expansion valve, and providing a sealing condition for the whole detection;
(3) the utility model extrudes the second sealing plug connected with the insert close to the hole of the expansion valve by the extrusion of the door-shaped sliding block, thereby ensuring that the device is in absolute sealing;
(4) the utility model discloses ground cylinder drives first fixture block and case piece and removes together, has guaranteed that overall structure's moving as a whole track is inserted with the drive and has realized sealedly, has simplified the power of device.
Drawings
Fig. 1 is an external schematic view of the present invention.
Fig. 2 is a structure diagram of the inside of the box body of the present invention.
Fig. 3 is a schematic view of the box of the present invention.
Fig. 4 is a front internal structure view of the door-shaped slider of the present invention.
Fig. 5 is a schematic view of the connection between the door-shaped slider and the base of the present invention.
Fig. 6 is a schematic view of the door-shaped slider of the present invention.
Fig. 7 is an internal schematic view of the door-shaped slider and the base of the present invention.
Fig. 8 is a schematic view of the base of the present invention.
Fig. 9 is a schematic view of the oblique slider of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, and it should be noted that the embodiments are only specific illustrations of the present invention, and should not be considered as limitations of the present invention, and the purpose of the embodiments is to make those skilled in the art better understand and reproduce the technical solutions of the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims.
As shown in fig. 1-2, the utility model provides a helium examines device for expansion valve, the device includes cylinder 1, box 2, the top surface of box 2 is connected cylinder 1, the side of box 2 be equipped with the one side with the box is separable, be equipped with straight slide rail 3, case piece 4, door-shaped slider 5, base 6 and chassis 7 in the box 2, cylinder 1 is connected case piece 2, 6 below of base is equipped with chassis 7, be equipped with support column 71 on the chassis 7, be equipped with corresponding through-hole 711 on base 6, chassis 7 and the support column 71 respectively and place the pipeline, the pipeline is used for connecting expansion valve and evacuating device.
Preferably, one side of box 2 is equipped with circular through-hole 21, circular through-hole 21 internal connection evacuating device, evacuating device adopts prior art, is not the utility model discloses it protects, does not carry out the detailed description.
Preferably, the straight slide rail 3 is fixedly connected in the box body 2.
As shown in fig. 3, the box 4 is L-shaped, a U-shaped groove 411 is formed in the long side portion 41 of the L-shape of the box 4, the depth of the portion 4111 of the U-shaped arc bottom of the U-shaped groove 411 is greater than the depths of other grooves of the U-shaped groove, the cylinder 1 is placed in the U-shaped arc bottom 4111 of the U-shaped groove 411, a thimble for connection of the cylinder 1 is provided with a protruding end portion, and the protruding end portion is clamped in the U-shaped groove 411.
As shown in fig. 4-5, two connecting posts 412 are arranged on the L-shaped long side portion 41 of the box block 4, a first fixture block 8 is arranged on one side of the box block 4, the first fixture block 8 moves along the direction of the straight slide rail 3, the sliding chute 50 of the base 6 is arranged in the portal-shaped slide block 5, the connecting posts 412 cross the two ends of the L-shaped long side portion 41 of the box block and are connected with the first fixture block 8, two rectangular through holes 420 are arranged on the L-shaped short side portion 42 of the box block 4, and a limiting post 421 is arranged in each rectangular through hole 420.
The junction of the L-shaped long side part 41 of the box block 4 and the L-shaped short side part 42 of the box block is provided with a rectangular block 43, the rectangular block 43 is fixedly connected with the box block 4, a T-shaped groove 431 is arranged in the rectangular block 43, a matched T-shaped convex block 432 is arranged in the T-shaped groove, and the T-shaped convex block 432 is arranged on the upper top surface of the door-shaped sliding block 5.
As shown in fig. 6, the sliding groove 50 includes a rectangular sliding groove 51 and an inclined sliding groove 52, the rectangular sliding groove 51 is disposed on one side of the door-shaped slider 5, the section of the rectangular sliding groove 51 on the upper top surface of the door-shaped slider 5 is trapezoidal, the inclined sliding groove 52 is disposed on the other side of the door-shaped slider 5, the inclined sliding groove 52 is connected to a U-shaped through hole 520 on the upper top surface of the door-shaped slider 5, and a backing plate 53 is disposed below the U-shaped through hole 520.
As shown in fig. 7, the backing plate 53 is fixedly connected to the door-shaped slider 5, a waist-shaped hole is formed in the backing plate 53, a limit pull rod 54 is arranged in the waist-shaped hole, a spring is arranged on the limit pull rod 54, and the limit pull rod 54 moves in the waist-shaped hole 55.
As shown in fig. 8, the shape of the base 6 is identical to the shape of the "L" at 90 degrees counterclockwise, a rectangular protruding block 611 is arranged on an L-shaped short side 61 of the base, the rectangular protruding block 611 is matched with the rectangular sliding groove 51 of the door-shaped slider, a rectangular groove 621 and two circular grooves 622 are arranged on an L-shaped long side 62 of the base, a first sealing plug 6221 matched with the expansion valve hole is arranged in the circular groove 622, and an inclined slider 63 is arranged in the rectangular groove 621.
As shown in fig. 9, an inclined protrusion block 631 matched with the inclined sliding groove 52 is arranged on the inclined sliding block 63, the inclined protrusion block 631 slides in the inclined sliding groove 52, the cross section of the bottom of the inclined sliding block 63 is rectangular, the inclined sliding block 63 slides in the rectangular groove 51, an insert block 64 is arranged in the inclined sliding block 63, two second sealing plugs 65 are arranged on the insert block 64, and the size of the second sealing plugs 65 is matched with the size of the expansion valve hole.
Preferably, the spring on the stop rod 54 ensures that the tension is always maintained between the backing plate 53 and the insert 64, thereby ensuring that the door-shaped slider 5 and the base 6 are also always maintained in tension so that the second sealing plug 65 always abuts against the expansion valve.
Preferably, the insert 64 ensures that the central positions of the second sealing plug 65 and the expansion valve hole are maintained on the same horizontal line, and if the second sealing plug 65 is not sealed with the expansion valve hole, the limit pull rod 54 moves in the kidney-shaped hole 55 until the central positions of the second sealing plug 65 and the expansion valve hole are adjusted on the same horizontal line.
Preferably, the rectangular protruding block 611 and the inclined sliding block 63 on the base 6 slide along the rectangular sliding slot 51 and the inclined sliding slot 52 of the door-shaped sliding block 5, respectively.
Preferably, the step of sealing the device is:
(1) placing the expansion valve on the base;
(2) sealing the box body;
(3) under the action of the cylinder, the door-shaped sliding block is extruded downwards and moves along the direction of the rectangular protruding block on the base;
(4) the inclined sliding block slides in the rectangular groove under the extrusion of the door-shaped sliding block to drive the second sealing plug on the insert block to seal the expansion valve hole.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
Claims (10)
1. The utility model provides a helium detects device for expansion valve, a serial communication port, the device includes cylinder, box, the top surface of box is connected the cylinder, the side of box be equipped with the one side with the box is separable, be equipped with straight slide rail, case piece, door shape slider, base and chassis in the box, the cylinder is connected the case piece, the base below is equipped with the chassis, be equipped with the support column on the chassis, be equipped with corresponding through-hole respectively on base, chassis and the support column and place the pipeline, the pipeline is used for connecting expansion valve and evacuating device.
2. The helium testing device for the expansion valve as claimed in claim 1, wherein the tank block is L-shaped, a U-shaped groove is provided on a long side portion of the L-shape of the tank block, a depth of a curved bottom portion of the U-shape of the U-shaped groove is greater than other depths of the U-shaped groove, the cylinder is placed on the curved bottom portion of the U-shape of the U-shaped groove, and a thimble connected to the cylinder is provided with a protruding end portion, and the protruding end portion is caught in the U-shaped groove.
3. The helium testing device for the expansion valve as claimed in claim 2, wherein two connecting posts are provided on the L-shaped long side portion of the box, a first clamping block is provided on one side of the box, the first clamping block moves along the direction of the straight sliding rail, a sliding slot for sliding the base is provided in the gate-shaped sliding block, the connecting posts cross two ends of the L-shaped long side portion of the box and are connected with the first clamping block, two rectangular through holes are provided on the L-shaped short side portion of the box, and a limiting post is provided in each rectangular through hole.
4. The helium testing device for the expansion valve as claimed in claim 3, wherein a fixing block is provided below the limiting post, a through hole is provided in the fixing block, the limiting post penetrates into the through hole of the fixing block, the fixing block is connected with a second clamping block, and the second clamping block is fixedly connected with the straight slide rail.
5. The helium testing device for the expansion valve as claimed in claim 3, wherein a rectangular block is provided at the junction of the L-shaped long side portion of the tank block and the L-shaped short side portion of the tank block, the rectangular block is fixedly connected with the tank block, a T-shaped groove is provided in the rectangular block, a matching T-shaped projection is provided in the T-shaped groove, and the T-shaped projection is placed on the upper top surface of the gate-shaped slider.
6. The helium testing device for the expansion valve as claimed in claim 5, wherein the chute comprises a rectangular chute and an inclined chute, the rectangular chute is arranged on one side of the gate-shaped slider, the section of the rectangular chute on the upper top surface of the gate-shaped slider is trapezoidal, the inclined chute is arranged on the other side of the gate-shaped slider, the inclined chute is connected with a U-shaped through hole on the upper top surface of the gate-shaped slider, and a backing plate is arranged below the U-shaped through hole.
7. The helium testing device for the expansion valve as claimed in claim 6, wherein the backing plate is fixedly connected with the gate-shaped slider, a waist-shaped hole is formed in the backing plate, a limiting pull rod is arranged in the waist-shaped hole, a spring is arranged on the limiting pull rod, and the limiting pull rod moves in the waist-shaped hole.
8. The helium testing device for the expansion valve according to claim 6, wherein the shape of the base is identical to that of an L shape at 90 degrees counterclockwise, a rectangular protruding block is arranged on the L-shaped short side of the base and matched with the rectangular sliding groove of the portal sliding block, a rectangular groove and two circular grooves are arranged on the L-shaped long side of the base, a first sealing plug matched with the expansion valve hole is arranged in each circular groove, and an inclined sliding block is arranged in each rectangular groove.
9. The helium testing device for the expansion valve as claimed in claim 8, wherein the inclined sliding block is provided with an inclined protrusion block matched with the inclined sliding groove, the inclined protrusion block slides in the inclined sliding groove, the cross section of the bottom of the inclined sliding block is rectangular, the inclined sliding block slides in the rectangular groove, an insert block is arranged in the inclined sliding block, two second sealing plugs are arranged on the insert block, and the size of the second sealing plugs is matched with that of the expansion valve hole.
10. The helium testing device for an expansion valve according to claim 6, wherein the rectangular projection block and the inclined slide block on the base slide along the rectangular sliding groove and the inclined sliding groove of the gate-shaped slide block, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121375919.0U CN215065096U (en) | 2021-06-21 | 2021-06-21 | Helium detection device for expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121375919.0U CN215065096U (en) | 2021-06-21 | 2021-06-21 | Helium detection device for expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215065096U true CN215065096U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121375919.0U Active CN215065096U (en) | 2021-06-21 | 2021-06-21 | Helium detection device for expansion valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN215065096U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091829A (en) * | 2023-10-18 | 2023-11-21 | 理文科技(山东)股份有限公司 | Vehicle air conditioner expansion valve testing platform |
-
2021
- 2021-06-21 CN CN202121375919.0U patent/CN215065096U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091829A (en) * | 2023-10-18 | 2023-11-21 | 理文科技(山东)股份有限公司 | Vehicle air conditioner expansion valve testing platform |
| CN117091829B (en) * | 2023-10-18 | 2024-01-05 | 理文科技(山东)股份有限公司 | Vehicle air conditioner expansion valve testing platform |
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