A detection jig for a tee valve

Abstract

The utility model discloses a detection fixture for three -way valve, include: installation base, and the upper end face is fixed with first mount pad and second mount pad, and first mount pad and second mount pad are opposite setting, positioning seat is located between first mount pad and second mount pad and is fixed on installation base, the pressure block is located the top of positioning seat and can be up and down mobile setting, first moving plate can be back and forth mobile type setting on first mount pad along first direction, and first moving plate is located the inboard of first mount pad, and the inboard fixed of first moving plate has first sealing plate, second moving plate can be back and forth mobile type setting on second mount pad along second direction, and second moving plate is located the inboard of second mount pad, and the inboard fixed of second moving plate has second sealing plate, the utility model discloses can position three -way valve, and after positioning, can be docked with the test related equipment, and it is convenient for operating personnel to detect the flow and air tightness of three -way valve, and the positioning effect is good, and the test is convenient.

Description

Technical Field

[0001] This utility model relates to a testing fixture, specifically a testing fixture for a three-way valve. Background Technology

[0002] There is a three-way valve 1, such as Figure 10 , Figure 11 , Figure 12 As shown, the three-way valve 1 includes a valve body 101, on which a first connecting port 102, a second connecting port 103, and a third connecting port 104, which are respectively provided for communication with the outside, are arranged sequentially. When the interior of the second connecting port 103 is blocked, the communication channel between the first connecting port 102 and the third connecting port 104 is blocked. The first connecting port 102 and the third connecting port 104 are respectively located on the left and right sides of the valve body 101, and the second connecting port 103 is located on the top of the valve body 101. Currently, it is necessary to test the flow rate and air tightness of the three-way valve 1. The flow rate test is the flow rate test of air or liquid from the first connecting port 102 to the third connecting port 104, and the air tightness test is the sealing performance test when the communication channel is blocked. The testing equipment uses existing equipment and is fully prepared. However, there is currently a lack of a device for positioning test of the three-way valve 1. Therefore, a testing fixture for the three-way valve 1 is designed to solve the above problem. It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Utility Model Content

[0003] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a testing fixture for three-way valves.

[0004] To achieve the above and other related objectives, the technical solution provided by this utility model is: a testing fixture for a three-way valve, the three-way valve including a valve body, wherein the valve body is respectively provided with a first connecting port, a second connecting port, and a third connecting port that can communicate with the outside, the first connecting port, the second connecting port, and the third connecting port are sequentially connected; when the interior of the second connecting port is blocked, the communication channel between the first connecting port and the third connecting port is blocked; the first connecting port and the third connecting port are arranged facing the left and right sides of the valve body, and the second connecting port is arranged facing the top of the valve body, including:

[0005] The mounting base has a first mounting seat and a second mounting seat fixed on its upper surface, and the first mounting seat and the second mounting seat are arranged opposite to each other.

[0006] A positioning seat is located between the first mounting seat and the second mounting seat and is fixed on the mounting base; the shape of the positioning seat is adapted to the shape of the three-way valve and is used to position the three-way valve.

[0007] The pressure block is located above the positioning seat and can be moved up and down. The material of the pressure block includes, but is not limited to, rubber. The pressure block needs to be able to seal the second connecting port at the upper end of the three-way valve when it presses down on the three-way valve.

[0008] A first movable plate is disposed on the first mounting base in a way that allows it to move back and forth along a first direction. The first movable plate is located inside the first mounting base, and a first sealing plate is fixed to the inner side of the first movable plate.

[0009] The second movable plate is movable back and forth in a second direction and is mounted on the second mounting base. The second movable plate is located inside the second mounting base, and a second sealing plate is fixed to the inside of the second movable plate.

[0010] Furthermore, a vertical mounting back plate is fixed on the mounting base, and a linear cylinder is fixed on the mounting back plate. The pressure block is connected to the extended end of the linear cylinder.

[0011] Furthermore, the first mounting base has a first mounting hole, in which a first pipe joint is provided; the first movable plate and the first sealing plate have a first connecting hole along a first direction, and the first connecting hole is connected to the first pipe joint; the second mounting base has a second mounting hole, in which a second pipe joint is provided; the second movable plate and the second sealing plate have a second connecting hole along a second direction, and the second connecting hole is connected to the second pipe joint.

[0012] Furthermore, the positioning seat includes a positioning base plate, and a positioning block that can be engaged with the three-way valve is provided in the middle of the positioning base plate. A first support block is provided on the side of the positioning block near the first mounting seat, and a second support block is provided on the side of the positioning block near the second mounting seat. Both the first support block and the second support block are fixed on the positioning base plate.

[0013] Furthermore, the upper ends of the first support block and the second support block are both provided with slots that are adapted to the left and right ends of the three-way valve.

[0014] Furthermore, the inner end of the first mounting base is provided with a first sliding groove, and the inner end of the second mounting base is provided with a second sliding groove. Both the first sliding groove and the second sliding groove are trapezoidal sliding grooves that are smaller at the top and larger at the bottom.

[0015] Furthermore, a first slider is fixed to the lower end of the first movable plate, and a second slider is fixed to the lower end of the second movable plate; both the first slider and the second slider are trapezoidal sliders, and the trapezoidal sliders are correspondingly arranged with the trapezoidal groove.

[0016] Furthermore, a horizontal first bolt is provided between the first mounting base and the first movable plate, and the first movable plate is moved back and forth in a first direction by the first bolt; a horizontal second bolt is provided between the second mounting base and the second movable plate, and the second movable plate is moved back and forth in a second direction by the second bolt. The bolts pass through the threaded holes of the mounting base and connect to the movable plate. The horizontal position of the movable plate can be adjusted by tightening the bolts, making operation convenient. There are four first bolts and four second bolts, evenly distributed around the mounting holes of the mounting base, making the structure more stable.

[0017] Furthermore, it also includes a plug located below the pressure block. The plug is removably positioned within the second connecting port. The plug is inserted into the second connecting port, and then the pressure block moves downwards to block the second connecting port. The plug, by blocking the second connecting port, obstructs the communication between the first and third connecting ports. Air supply through the first and second pipe joints allows for the testing of the three-way valve's airtightness.

[0018] Furthermore, the plug is adapted to the shape of the second connecting opening, and the height of the plug is greater than or equal to the depth of the second connecting opening. This results in a better blocking effect.

[0019] Due to the application of the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0020] This utility model designs a testing fixture for three-way valves, which can position the three-way valve. After positioning, it can be connected to relevant testing equipment, making it convenient for operators to test the flow rate and air tightness of the three-way valve. It has good positioning effect, is easy to test, and is suitable for widespread application. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the testing fixture of this utility model (cylinder extended state);

[0022] Figure 2 This is a schematic diagram of the overall structure of the testing fixture of this utility model (cylinder retracted state);

[0023] Figure 3This is a schematic diagram of the mounting base and its upper structure (including the three-way valve) of this utility model.

[0024] Figure 4 This is a schematic diagram of the mounting base and its upper structure of the present invention (excluding the three-way valve).

[0025] Figure 5 This is a schematic diagram of the positioning seat structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the first movable plate, the second movable plate, and their related structures of the present invention.

[0027] Figure 7 This is a schematic diagram of the mounting base, the first mounting seat, and the second mounting seat of this utility model;

[0028] Figure 8 This is a schematic diagram of the positioning state of the three-way valve and the positioning seat of this utility model (excluding the plug);

[0029] Figure 9 This is a schematic diagram showing the positioning state of the three-way valve and positioning seat of this utility model (including the plug).

[0030] Figure 10 This is a schematic diagram of the overall structure of the three-way valve of this utility model;

[0031] Figure 11 This is a cross-sectional view of the three-way valve of this utility model;

[0032] Figure 12 This is a cross-sectional view of the three-way valve and plug of this utility model;

[0033] In the above attached figures,

[0034] 1. Three-way valve; 101. Valve body; 102. First connecting port; 103. Second connecting port; 104. Third connecting port;

[0035] 2. Install the base;

[0036] 3. First mounting base; 301. First mounting hole; 302. First sliding groove;

[0037] 4. Second mounting base; 401. Second mounting hole; 402. Second sliding groove;

[0038] 5. Positioning seat; 501. Positioning base plate; 502. Positioning block; 503. First support block; 504. Second support block; 505. Slot;

[0039] 6. Pressing blocks;

[0040] 7. First movable plate; 701. First connecting hole; 702. First slider;

[0041] 8. First sealing plate;

[0042] 9. Second movable plate; 901. Second connecting hole; 902. Second slider;

[0043] 10. Second sealing plate; 11. Mounting back plate; 12. Linear cylinder; 13. First pipe joint; 14. Second pipe joint; 15. First bolt; 16. Second bolt; 17. Plug. Detailed Implementation

[0044] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0045] It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0048] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0049] Example 1:

[0050] This embodiment provides a testing fixture for a three-way valve, see attached document. Figure 10 As shown, the three-way valve 1 includes a valve body 101, on which a first connecting port 102, a second connecting port 103, and a third connecting port 104 are respectively provided, which can be connected to the outside. The first connecting port 102, the second connecting port 103, and the third connecting port 104 are sequentially connected. When the interior of the second connecting port 103 is blocked, the communication channel between the first connecting port 102 and the third connecting port 104 is blocked. The first connecting port 102 and the third connecting port 104 are respectively arranged facing the left and right sides of the valve body 101, and the second connecting port 103 is arranged facing the top of the valve body 101.

[0051] See appendix Figure 1 and attached Figure 2 As shown, the testing fixture includes:

[0052] Mounting base 2, with a first mounting seat 3 and a second mounting seat 4 fixed on the upper end surface of mounting base 2, the first mounting seat 3 and the second mounting seat 4 being arranged opposite to each other;

[0053] Positioning seat 5 is located between the first mounting seat 3 and the second mounting seat 4 and is fixed on the mounting base 2; the shape of positioning seat 5 is adapted to the shape of the three-way valve 1 and is used to position the three-way valve 1.

[0054] Pressure block 6 is located above positioning seat 5 and can be moved up and down; the material of pressure block 6 includes but is not limited to rubber material, and pressure block 6 needs to be able to seal the second connecting port 103 at the upper end of the three-way valve 1 when it presses down on the three-way valve 1.

[0055] The first movable plate 7 is movable back and forth on the first mounting base 3 in the first direction. The first movable plate 7 is located inside the first mounting base 3, and the first sealing plate 8 is fixed inside the first movable plate 7.

[0056] The second movable plate 9 is movable back and forth along the second direction and is mounted on the second mounting base 4. The second movable plate 9 is located inside the second mounting base 4, and the second sealing plate 10 is fixed inside the second movable plate 9.

[0057] See appendix Figure 1 and attached Figure 2 As shown, a vertical mounting back plate 11 is fixed on the mounting base 2, and a linear cylinder 12 is fixed on the mounting back plate 11. The pressure block 6 is connected to the extended end of the linear cylinder 12.

[0058] See appendix Figure 3 and attached Figure 4 As shown, the first mounting base 3 has a first mounting hole 301, and a first pipe connector 13 is provided in the first mounting hole 301. The first moving plate 7 and the first sealing plate 8 have a first connecting hole 701 along the first direction, and the first connecting hole 701 is connected to the first pipe connector 13. The second mounting base 4 has a second mounting hole 401, and a second pipe connector 14 is provided in the second mounting hole 401. The second moving plate 9 and the second sealing plate 10 have a second connecting hole 901 along the second direction, and the second connecting hole 901 is connected to the second pipe connector 14.

[0059] A horizontal first bolt 15 is provided between the first mounting base 3 and the first movable plate 7, and the first movable plate 7 is moved back and forth in a first direction by the first bolt 15; a horizontal second bolt 16 is provided between the second mounting base 4 and the second movable plate 9, and the second movable plate 9 is moved back and forth in a second direction by the second bolt 16. The bolts pass through the threaded holes of the mounting base and connect to the movable plate. The horizontal position of the movable plate can be adjusted by turning the bolts, which is convenient to operate. There are four first bolts 15 and four second bolts 16, which are evenly distributed around the mounting holes of the mounting base, making the structure more stable.

[0060] See appendix Figure 5 As shown, the positioning base 5 includes a positioning base plate 501. A positioning block 502, capable of engaging the three-way valve 1, is located in the middle of the positioning base plate 501. A first support block 503 is located on the side of the positioning block 502 closest to the first mounting base 3, and a second support block 504 is located on the side of the positioning block 502 closest to the second mounting base 4. Both the first support block 503 and the second support block 504 are fixed to the positioning base plate 501. The upper ends of both the first support block 503 and the second support block 504 have slots 505 that mate with the left and right ends of the three-way valve 1.

[0061] See appendix Figure 7 As shown, the inner end of the first mounting base 3 has a first sliding groove 302, and the inner end of the second mounting base 4 has a second sliding groove 402. Both the first sliding groove 302 and the second sliding groove 402 are trapezoidal sliding grooves, which are smaller at the top and larger at the bottom, i.e., dovetail grooves. See appendix. Figure 6 As shown, a first slider 702 is fixed to the lower end of the first movable plate 7, and a second slider 902 is fixed to the lower end of the second movable plate 9; both the first slider 702 and the second slider 902 are trapezoidal sliders, that is, dovetail sliders, and the trapezoidal sliders are correspondingly set with the trapezoidal grooves.

[0062] When performing traffic detection, please refer to the appendix. Figure 3 and attached Figure 8 As shown, first, the three-way valve 1 is placed into the positioning seat 5; then, by turning the first bolt 15, the first moving plate 7 moves inward along the first slide groove 302 of the first mounting seat 3 until the first sealing plate 8 presses against the first connecting port 102 of the three-way valve 1; then, by turning the second bolt 16, the second moving plate 9 moves inward along the second slide groove 402 of the second mounting seat 4 until the second sealing plate 10 presses against the third connecting port 104 of the three-way valve 1; then, the linear cylinder 12 drives the pressure block 6 from the attached... Figure 2 The state becomes attached Figure 1 The state of the pressure block 6 seals the second connection port 103; the first pipe joint 13 is connected to the gas generating device (or liquid storage device), and the second pipe joint 14 is connected to the flow detection device. During the test, the first pipe joint 13 takes in gas (liquid), and the gas (liquid) exits from the second pipe joint 14 after passing through the second connection port 103 and the third connection port 104 in sequence from the first connection port 102 for flow detection. The flow rate at the gas (liquid) end can be controlled by the control system.

[0063] Example 2:

[0064] See appendix Figure 9 and attached Figure 12 As shown, this embodiment is a further improvement based on Embodiment 1, and its specific method is as follows:

[0065] The testing fixture also includes a plug 17, located below the pressure block 6. The plug 17 is removably positioned within the second connecting port 103. When the plug 17 is inserted into the second connecting port 103, the pressure block 6 moves downwards to block the second connecting port 103. The plug 17 thus blocks the communication channel between the first connecting port 102 and the third connecting port 104 by blocking the second connecting port 103. The airtightness of the three-way valve 1 can be tested by supplying air through the first pipe connector 13 and the second pipe connector 14.

[0066] See appendix Figure 12As shown, the plug 17 is shaped to match the second connecting port 103, and the height of the plug 17 is greater than or equal to the depth of the second connecting port 103. The plug 17 provides a better blocking effect.

[0067] For the three-way valve product 1, the cylinder presses down for the first time, blocking the upper outlet, allowing liquid to flow in the other two ports. At this point, the flow rate is measured. The cylinder then drives the sealing plug to press down a second time, cutting off the internal passage. At this point, the airtightness is measured.

[0068] When conducting an airtightness test, please refer to the appendix. Figure 3 and attached Figure 9 As shown, first, place the three-way valve 1 into the positioning seat 5; then, by tightening the first bolt 15, move the first moving plate 7 inward along the first sliding groove 302 of the first mounting seat 3 until the first sealing plate 8 presses against the first connecting port 102 of the three-way valve 1; then, by tightening the second bolt 16, move the second moving plate 9 inward along the second sliding groove 402 of the second mounting seat 4 until the second sealing plate 10 presses against the third connecting port 104 of the three-way valve 1; then, insert the plug 17 into the second connecting port 103 of the three-way valve 1. (See attached diagram) Figure 12 As shown; then the linear cylinder 12 drives the pressure block 6 from the attached... Figure 2 The state becomes attached Figure 1 The state of the pressure block 6 seals the second connection port 103 and tightens the plug 17; the first pipe joint 13 (or the second pipe joint 14) is connected to the gas generating equipment, and the second pipe joint 14 (or the first pipe joint 13) is connected to the gas detection equipment. During the test, the first pipe joint 13 (or the second pipe joint 14) is filled with gas, and gas detection is performed on the side of the second pipe joint 14 (or the first pipe joint 13). If the input gas is detected, the air tightness is unqualified, otherwise it is qualified. The gas entry speed and gas pressure at the inlet end can be controlled by the control system.

[0069] This utility model designs a testing fixture for three-way valves, which can position the three-way valve. After positioning, it can be connected to relevant testing equipment, making it convenient for operators to test the flow rate and air tightness of the three-way valve. It has good positioning effect, is easy to test, and is suitable for widespread application.

[0070] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A testing fixture for a three-way valve, the three-way valve (1) comprising a valve body (101), wherein the valve body (101) is respectively provided with a first connecting port (102), a second connecting port (103), and a third connecting port (104) for communication with the outside, the first connecting port (102), the second connecting port (103), and the third connecting port (104) being sequentially connected; when the interior of the second connecting port (103) is blocked, the communication channel between the first connecting port (102) and the third connecting port (104) is blocked; the first connecting port (102) and the third connecting port (104) are respectively arranged facing the left and right sides of the valve body (101), and the second connecting port (103) is arranged facing the top of the valve body (101), characterized in that, include: Mounting base (2), the upper end surface of which is fixed with a first mounting seat (3) and a second mounting seat (4), the first mounting seat (3) and the second mounting seat (4) being arranged opposite to each other; Positioning seat (5), the positioning seat (5) is located between the first mounting seat (3) and the second mounting seat (4) and is fixed on the mounting base (2); Pressure block (6), the pressure block (6) is located above the positioning seat (5) and can be moved up and down; The first movable plate (7) is movable back and forth in the first direction and is mounted on the first mounting base (3). The first movable plate (7) is located inside the first mounting base (3). The first sealing plate (8) is fixed inside the first movable plate (7). The second movable plate (9) is movable back and forth in the second direction and is mounted on the second mounting base (4). The second movable plate (9) is located inside the second mounting base (4), and a second sealing plate (10) is fixed inside the second movable plate (9).

2. The testing fixture for a three-way valve according to claim 1, characterized in that: A vertical mounting back plate (11) is fixed on the mounting base (2), and a linear cylinder (12) is fixed on the mounting back plate (11). The pressure block (6) is connected to the extended end of the linear cylinder (12) via a transmission.

3. The testing fixture for a three-way valve according to claim 1, characterized in that: The first mounting base (3) is provided with a first mounting hole (301), and a first pipe joint (13) is provided in the first mounting hole (301). The first moving plate (7) and the first sealing plate (8) are provided with a first connecting hole (701) along the first direction. The first connecting hole (701) is connected to the first pipe joint (13). The second mounting base (4) has a second mounting hole (401) and a second pipe joint (14) is provided in the second mounting hole (401). The second moving plate (9) and the second sealing plate (10) have a second connecting hole (901) along the second direction. The second connecting hole (901) is connected to the second pipe joint (14).

4. A testing fixture for a three-way valve according to claim 1, characterized in that: The positioning base (5) includes a positioning base plate (501). A positioning block (502) that can be inserted into the three-way valve (1) is provided in the middle of the positioning base plate (501). A first support block (503) is provided on the side of the positioning block (502) near the first mounting base (3). A second support block (504) is provided on the side of the positioning block (502) near the second mounting base (4). The first support block (503) and the second support block (504) are both fixed on the positioning base plate (501).

5. A testing fixture for a three-way valve according to claim 4, characterized in that: The upper end of the first support block (503) and the upper end of the second support block (504) are provided with slots (505) that are adapted to the left and right ends of the three-way valve (1).

6. A testing fixture for a three-way valve according to claim 1, characterized in that: The first mounting base (3) has a first groove (302) on its inner side, and the second mounting base (4) has a second groove (402) on its inner side. Both the first groove (302) and the second groove (402) are trapezoidal grooves that are smaller at the top and larger at the bottom.

7. A testing fixture for a three-way valve according to claim 6, characterized in that: The lower end of the first movable plate (7) is fixed with a first slider (702), and the lower end of the second movable plate (9) is fixed with a second slider (902); the first slider (702) and the second slider (902) are both trapezoidal sliders, and the trapezoidal sliders are correspondingly arranged with the trapezoidal groove.

8. A testing fixture for a three-way valve according to claim 1, characterized in that: A horizontal first bolt (15) is provided between the first mounting base (3) and the first movable plate (7), and the first movable plate (7) is driven to move back and forth in the first direction by the first bolt (15); A horizontal second bolt (16) is provided between the second mounting base (4) and the second movable plate (9), and the second movable plate (9) is driven to move back and forth in the second direction by the second bolt (16).

9. A testing fixture for a three-way valve according to claim 1, characterized in that: It also includes a plug (17), which is located below the pressure block (6) and is removably disposed in the second communication port (103).

10. A testing fixture for a three-way valve according to claim 9, characterized in that: The plug (17) is adapted to the shape of the second connection (103), and the height of the plug (17) is greater than or equal to the depth of the second connection (103).

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