Water valve air tightness detection device

Abstract

The utility model discloses a water valve air tightness detection device. The water valve includes water valve body, first water connection end, second water connection end and valve rod set on water valve body, and the valve rod can move between first position and second position relative to water valve body, when the valve rod is in first position, first water connection end and second water connection end are communicated, when the valve rod is in second position, first water connection end is disconnected with second water connection end, and the water valve air tightness detection device includes water tray, is provided with the disc cavity of opening upwards in it, and the liquid water is stored in disc cavity, positioning piece is provided with the positioning groove of opening upwards in it, and the positioning groove is used for placing water valve, and the liquid water in disc cavity is submerged water valve setting, first drive structure is installed in disc cavity, and the air pipe is installed in the output of first drive structure and is set up in alignment with the first water connection end of water valve.

Description

Technical Field

[0001] This utility model relates to the field of water valve technology, and in particular to a water valve airtightness testing device. Background Technology

[0002] Water valves are used to control the flow of water, and their airtightness is a critical quality indicator. Generally, water valves undergo airtightness testing before leaving the factory to ensure they meet airtightness requirements. Currently, airtightness testing of water valves is typically performed manually, which is inefficient and inaccurate, making it difficult to meet production requirements.

[0003] Therefore, there is an urgent need for a water valve airtightness testing device to solve the above problems. Utility Model Content

[0004] This utility model aims to at least partially solve one of the problems existing in the existing related technologies. To this end, this utility model proposes a water valve airtightness detection device, which can automatically detect the airtightness of water valves with high detection efficiency and accuracy.

[0005] The above objectives are achieved through the following technical solutions:

[0006] A water valve airtightness testing device, the water valve including a water valve body, a first water inlet end, a second water inlet end disposed on the water valve body, and a valve stem, the valve stem being movable relative to the water valve body between a first position and a second position, wherein when the valve stem is in the first position, the first water inlet end and the second water inlet end are connected, and when the valve stem is in the second position, the first water inlet end and the second water inlet end are disconnected, the water valve airtightness testing device comprising:

[0007] A water tray with an upward-facing cavity containing liquid water.

[0008] A positioning component is provided with an upward-facing positioning groove, which is used to place a water valve, and the liquid water in the cavity of the plate submerges the water valve.

[0009] A first drive structure is installed in the disk cavity;

[0010] A vent pipe is installed at the output end of the first drive structure and aligned with the first water inlet of the water valve. The first drive structure can drive the vent pipe to switch between two states: connected to the first water inlet and disconnected from the first water inlet.

[0011] A second drive structure is installed in the disk cavity;

[0012] A sealing component is installed at the output end of the second drive structure and aligned with the second water inlet of the water valve. The second drive structure can drive the sealing component to switch between two states: blocking the second water inlet and opening the second water inlet.

[0013] An air supply device includes an air supply pump, which is connected to the air pipe and is used to supply air to the air pipe.

[0014] Optionally, it also includes a third drive structure and a pressing part disposed at the output end of the third drive structure. The third drive structure is installed in the disc cavity, and the pressing part is disposed corresponding to the valve stem. The third drive structure can drive the pressing part to move between a third position and a fourth position. When the pressing part is in the third position, the pressing part pushes the valve stem to the first position; when the pressing part is in the fourth position, the valve stem returns to the second position.

[0015] Optionally, it also includes a fourth drive structure installed in the disc cavity, the third drive structure being installed at the output end of the fourth drive structure, the fourth drive structure being able to drive the third drive structure to move between a fifth position and a sixth position, when the third drive structure is in the fifth position, the pressing part is disposed close to the valve stem; when the third drive structure is in the sixth position, the pressing part is disposed away from the valve stem.

[0016] Optionally, the valve stem can move vertically between a first position and a second position relative to the water valve body, with the first position being lower than the second position. The system also includes a support plate and a support frame mounted on the support plate. The support plate is disposed within the disc cavity. The positioning element is disposed on the support plate. The first and second driving structures are both disposed on the support plate. The fourth driving structure is mounted on the support frame. The third driving structure can drive the pressing part to move vertically between the third and fourth positions, with the pressing part located above the valve stem. The third position is lower than the fourth position. The fourth driving structure can drive the third driving structure to move vertically between a fifth and a sixth position, with the fifth position being lower than the sixth position.

[0017] Optionally, the water tray has the same shape as the support plate, and the periphery of the support plate is fitted to the inner wall of the water tray.

[0018] Optionally, it also includes a mounting plate, which is mounted on the output end of the fourth drive structure, and the third drive structure is mounted on the mounting plate.

[0019] Optionally, the positioning member is further provided with a first clearance hole and a second clearance hole, both of which are connected to the positioning groove. The first water receiving end extends out of the positioning member from the first clearance hole, and the second water receiving end extends out of the positioning member from the second clearance hole.

[0020] Optionally, the air supply device further includes a pressure detector and a pressure display. The pressure detector is used to detect the air pressure value delivered by the air supply pump to the air pipe and transmit the air pressure value to the display for display.

[0021] Optionally, the water valve includes at least two first water inlets, at least two second water inlets, and at least two valve stems, with the first water inlets, second water inlets, and valve stems arranged in a one-to-one correspondence. At least two vent pipes are provided, with each vent pipe corresponding to one of the first water inlets. At least two sealing components are provided, with each sealing component corresponding to one of the second water inlets.

[0022] Optionally, at least two of each of the positioning element, the first driving structure, the second driving structure, the third driving structure, and the fourth driving structure are provided, and the positioning element is provided in a one-to-one correspondence with the water valve, the first driving structure, the second driving structure, the third driving structure, and the fourth driving structure.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] The water valve airtightness testing device provided by this utility model can realize the automatic detection of the airtightness of water valves, with high detection efficiency and high detection accuracy. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the water valve airtightness testing device provided in a specific embodiment of the present invention (the water valve is installed in the positioning component);

[0026] Figure 2 yes Figure 1 A three-dimensional structural diagram of the structure after the gas supply device and water valve have been removed.

[0027] Figure 3 yes Figure 1 Exploded view after the gas supply device has been removed;

[0028] Figure 4 This is a three-dimensional structural diagram of the water valve provided in a specific embodiment of this utility model.

[0029] In the picture:

[0030] 11. Support plate; 111. Positioning component; 101. Positioning groove; 102. First clearance hole; 12. Support frame; 131. Third drive structure; 132. Pressing part; 141. First drive structure; 142. Vent pipe; 151. Second drive structure; 152. Sealing component; 16. Fourth drive structure; 17. Mounting plate; 2. Water valve; 21. Water valve body; 22. Valve stem; 231. First water inlet; 232. Second water inlet; 3. Water tray; 30. Tray cavity; 4. Air supply device. Detailed Implementation

[0031] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0032] Please refer to Figures 1-4This utility model provides a water valve airtightness testing device. The water valve 2 includes a water valve body 21, a first water inlet 231 and a second water inlet 232 disposed on the water valve body 21, and a valve stem 22. The valve stem 22 can move relative to the water valve body 21 between a first position and a second position. When the valve stem 22 is in the first position, the first water inlet 231 and the second water inlet 232 are connected. When the valve stem 22 is in the second position, the first water inlet 231 and the second water inlet 232 are disconnected. The water valve 2 airtightness testing device includes a water pan 3, a positioning component 111, a first drive structure 141, a vent pipe 142, a second drive structure 151, a sealing component 152, and an air supply device 4. The water pan 3 has an upward-facing cavity 30, which contains liquid water. The positioning component 111 has an upward-facing positioning groove 101 for placing the water valve 2. The liquid water in the cavity 30 submerges the water valve 2. A first drive structure 141 is installed in the cavity 30. A vent pipe 142 is installed at the output end of the first drive structure 141 and aligned with the first water inlet 231 of the water valve 2. The first drive structure 141 can drive the vent pipe 142 to switch between being connected to and disconnected from the first water inlet 231. A second drive structure 151 is installed in the cavity 30. A sealing member 152 is installed at the output end of the second drive structure 151 and aligned with the second water inlet 232 of the water valve 2. The second drive structure 151 can drive the sealing member 152 to switch between blocking and opening the second water inlet 232. An air supply device 4 includes an air supply pump, which is connected to the vent pipe 142 and is used to supply air to the vent pipe 142. Specifically, when it is necessary to test the airtightness of water valve 2 when the first water inlet 231 and the second water inlet 232 are disconnected, water valve 2 is placed in positioning groove 101, and air pump is used to pump air into the first water inlet 231 through air pipe 142. At the same time, sealing part 152 seals the second water inlet 232. Observe whether there is gas coming out of the liquid water in water valve 2. If there is gas coming out, it means that water valve 2 has air leakage and is judged to be a defective product. If there is no gas coming out, it means that water valve 2 does not have air leakage and has good airtightness and is judged to be a qualified product.When it is necessary to test the airtightness of water valve 2 when the first water inlet 231 and the second water inlet 232 are connected, place water valve 2 in the positioning groove 101, and allow air valve to inject air into the first water inlet 231 through the air pipe. At the same time, the sealing member 152 does not seal the second water inlet 232. Press the valve stem 22 to the first position and observe whether there is gas coming out of the second water inlet 232. If there is gas coming out, it means that the first water inlet 231 and the second water inlet 232 are successfully connected, and the water valve... 2. If the water valve 2 is qualified in terms of water flow function, and no gas is emitted, it indicates that there is a blockage between the first water inlet 231 and the second water inlet 232, and the water valve 2 is unqualified in terms of water flow function. At the same time, observe whether there is gas emanating from other positions of the water valve 2. If gas is emitted, it indicates that the water valve 2 is leaking, and the water valve 2 is determined to be unqualified. If no gas is emitted, it indicates that the water valve 2 is not leaking and has good air tightness, and the water valve 2 is determined to be qualified in terms of air tightness.

[0033] Optionally, the system also includes a third drive structure 131 and a pressing part 132 disposed at the output end of the third drive structure 131. The third drive structure 131 is installed in the disc cavity 30, and the pressing part 132 is correspondingly disposed with respect to the valve stem 22. The third drive structure 131 can drive the pressing part 132 to move between a third position and a fourth position. When the pressing part 132 is in the third position, the pressing part 132 pushes the valve stem 22 to the first position; when the pressing part 132 is in the fourth position, the valve stem 22 returns to the second position (a return spring connected to the valve stem 22 is provided inside the water valve 2; the specific structure is prior art and will not be described in detail here). By setting the third drive structure 131 to press the valve stem 22, automatic detection is achieved.

[0034] Optionally, a fourth drive structure 16 is also included, installed in the cavity 30. The third drive structure 131 is installed at the output end of the fourth drive structure 16. The fourth drive structure 16 can drive the third drive structure 131 to move between a fifth position and a sixth position. When the third drive structure 131 is in the fifth position, the pressing part 132 is positioned close to the valve stem 22, and the third drive structure 131 operates, driving the pressing part 132 to the third position. When the third drive structure 131 is in the sixth position, the pressing part 132 is positioned away from the valve stem 22, and the valve stem 22 automatically resets to the second position. By setting the fourth drive structure 16, it is easier to move the third drive structure 131 to the sixth position, thus facilitating the user to retrieve the drain valve 2 from the positioning groove 101.

[0035] Optionally, the valve stem 22 can move vertically between a first position and a second position relative to the water valve body 21, with the first position being lower than the second position. The system also includes a support plate 11 and a support frame 12 mounted on the support plate 11. The support plate 11 is located in the disc cavity 30, and a positioning element 111 is mounted on the support plate 11. The first drive structure 141 and the second drive structure 151 are both mounted on the support plate 11. The fourth drive structure 16 is mounted on the support frame 12. The third drive structure 131 can drive the pressing part 132 to move vertically between the third and fourth positions, with the pressing part 132 located above the valve stem 22. The third position is lower than the fourth position. The fourth drive structure 16 can drive the third drive structure 131 to move vertically between the fifth and sixth positions, with the fifth position being lower than the sixth position. The structure is simple and compact.

[0036] Optionally, the water pan 3 has the same shape as the support plate 11, and the periphery of the support plate 11 fits against the inner wall of the water pan 3, thereby positioning the support plate 11 and preventing vibration displacement during device operation.

[0037] Optionally, it also includes a mounting plate 17, which is mounted on the output end of the fourth drive structure 16, and the third drive structure 131 is mounted on the mounting plate 17.

[0038] Optionally, the positioning member 111 is further provided with a first clearance hole 102 and a second clearance hole, both of which communicate with the positioning groove 101. The first water receiving end 231 extends out of the positioning member 111 from the first clearance hole 102, and the second water receiving end 232 extends out of the positioning member 111 from the second clearance hole. By providing the first clearance hole 102 and the second clearance hole, the limiting stability of the water valve 2 on the positioning member 111 can be further achieved.

[0039] Optionally, the air supply device 4 further comprises an air pressure detector and an air pressure display, wherein the air pressure detector is configured to detect the air pressure value delivered by the air supply pump into the ventilation pipe 142 and transmit the air pressure value to the display for display. Specifically, when it is required to detect the air tightness of the water valve 2 when the first water receiving end 231 is disconnected from the second water receiving end 232, the actual air pressure P1 can be obtained through the display, and the actual air pressure P1 is compared with a preset air pressure P0. If P1<P0-ΔP, where ΔP is a set error value, it indicates that the water valve 2 has an air leakage, and the water valve 2 is determined as an unqualified product; if P1≥P0, it indicates that the water valve 2 has no air leakage, and the water valve 2 is determined as a qualified product. When it is required to detect the air tightness of the water valve 2 when the first water receiving end 231 is communicated with the second water receiving end 232, if P1≥P0-ΔP, it indicates that blockage occurs between the first water receiving end 231 and the second water receiving end 232, and the water valve 2 is an unqualified product in terms of water passing function; if P1=0, it is further required to observe whether gas escapes from any other position of the water valve 2 except the second water receiving end 232. If gas escapes, it indicates that the air tightness of the water valve 2 is insufficient, and the water valve 2 is determined as an unqualified product; if no gas escapes, it indicates that the first water receiving end 231 is smoothly communicated with the second water receiving end 232 and the air tightness is good, and the water valve 2 is determined as a qualified product. In this way, by arranging the air pressure detector and the air pressure display in combination with manual observation of whether gas escapes from the water valve in water, whether the air tightness of the water valve 2 is qualified is determined jointly, thereby improving the detection accuracy.

[0040] Optionally, the water valve 2 comprises at least two first water receiving ends 231, at least two second water receiving ends 232 and at least two valve stems 22, the first water receiving ends 231, the second water receiving ends 232 and the valve stems 22 are arranged in one-to-one correspondence, at least two ventilation pipes 142 are provided, the ventilation pipes 142 and the first water receiving ends 231 are arranged in one-to-one correspondence, at least two blocking members 152 are provided, and the blocking members 152 and the second water receiving ends 232 are arranged in one-to-one correspondence.

[0041] Optionally, at least two positioning members 111, at least two first driving structures 141, at least two second driving structures 151, at least two third driving structures 131 and at least two fourth driving structures 16 are provided, and the positioning members 111 correspond to the water valves 2, the first driving structures 141, the second driving structures 151, the third driving structures 131 and the fourth driving structures 16 in one-to-one correspondence.

[0042] Optionally, the first driving structure 141, the second driving structure 151, the third driving structure 131 and the fourth driving structure 16 are all linear motors.

[0043] What described above are only some embodiments of the present utility model. For those skilled in the art, several variations and improvements can be made without departing from the concept of the present utility model, and these all fall within the protection scope of the present utility model.

Claims

1. A water valve airtightness testing device, characterized in that, The water valve includes a water valve body (21), a first water inlet (231), a second water inlet (232), and a valve stem (22) disposed on the water valve body (21). The valve stem (22) is movable relative to the water valve body (21) between a first position and a second position. When the valve stem (22) is in the first position, the first water inlet (231) and the second water inlet (232) are connected. When the valve stem (22) is in the second position, the first water inlet (231) and the second water inlet (232) are disconnected. The water valve airtightness detection device includes: A water tray (3) has an upward-facing cavity (30) inside, which contains liquid water. The positioning component (111) has an upward-facing positioning groove (101) inside, which is used to place the water valve (2), and the liquid water in the plate cavity (30) submerges the water valve (2). A first drive structure (141) is installed in the disk cavity (30); A vent pipe (142) is installed at the output end of the first drive structure (141) and aligned with the first water inlet (231) of the water valve (2). The first drive structure (141) can drive the vent pipe (142) to switch between two states: connected to the first water inlet (231) and disconnected from the first water inlet (231). The second drive structure (151) is installed in the disk cavity (30); A sealing element (152) is installed at the output end of the second drive structure (151) and aligned with the second water inlet (232) of the water valve (2). The second drive structure (151) can drive the sealing element (151) to switch between two states: sealing the second water inlet (232) and opening the second water inlet (233). The gas supply device (4) includes a gas supply pump, which is connected to the vent pipe (142) and is used to supply gas to the vent pipe (142).

2. The water valve airtightness testing device according to claim 1, characterized in that, It also includes a third drive structure (131) and a pressing part (132) disposed at the output end of the third drive structure (131). The third drive structure (131) is installed in the disc cavity (30). The pressing part (132) is disposed corresponding to the valve stem (22). The third drive structure (131) can drive the pressing part (132) to move between a third position and a fourth position. When the pressing part (132) is in the third position, the pressing part (132) pushes the valve stem (22) to move to the first position. When the pressing part (132) is in the fourth position, the valve stem (22) returns to the second position.

3. The water valve airtightness testing device according to claim 2, characterized in that, It also includes a fourth drive structure (16) installed in the disc cavity (30), the third drive structure (131) is installed at the output end of the fourth drive structure, the fourth drive structure (16) can drive the third drive structure (131) to move between a fifth position and a sixth position, when the third drive structure (131) is in the fifth position, the pressing part (132) is located close to the valve stem (22); when the third drive structure (131) is in the sixth position, the pressing part (132) is located away from the valve stem (22).

4. The water valve airtightness testing device according to claim 3, characterized in that, The valve stem (22) is able to move vertically between the first position and the second position relative to the water valve body (21), the first position being lower than the second position. It also includes a support plate (11) and a support frame (12) disposed on the support plate (11). The support plate (11) is disposed in the disc cavity (30). The positioning member (111) is disposed on the support plate (11). The first drive structure (141) and the second drive structure (151) are both disposed on the support plate (11). The fourth drive structure (16) is mounted on the support frame (12). The third drive structure (11) is able to drive the pressing part (132) to move vertically between the third position and the fourth position. The pressing part (132) is located above the valve stem (22). The third position is lower than the fourth position. The fourth drive structure (16) is able to drive the third drive structure (131) to move vertically between the fifth position and the sixth position. The fifth position is lower than the sixth position.

5. The water valve airtightness testing device according to claim 4, characterized in that, The water tray (3) has the same shape as the support plate (11), and the periphery of the support plate (11) is attached to the inner wall of the water tray (3).

6. The water valve airtightness testing device according to claim 3, characterized in that, It also includes a mounting plate (17), which is mounted on the output end of the fourth drive structure (16), and the third drive structure (131) is mounted on the mounting plate (17).

7. The water valve airtightness testing device according to any one of claims 1-6, characterized in that, The positioning member (111) is also provided with a first clearance hole (102) and a second clearance hole. Both the first clearance hole (102) and the second clearance hole are connected to the positioning groove (101). The first water receiving end (231) extends out of the positioning member (111) from the first clearance hole (102), and the second water receiving end (232) extends out of the positioning member (111) from the second clearance hole.

8. The water valve airtightness testing device according to any one of claims 1-6, characterized in that, The air supply device (4) further includes an air pressure detector and an air pressure display. The air pressure detector is used to detect the air pressure value delivered by the air supply pump to the air pipe (142) and transmit the air pressure value to the display for display.

9. The water valve airtightness testing device according to any one of claims 2-6, characterized in that, The water valve includes at least two first water inlet ends (231), at least two second water inlet ends (232), and at least two valve stems (22). The first water inlet ends (231), the second water inlet ends (232), and the valve stems (22) are arranged in a one-to-one correspondence. At least two vent pipes (142) are provided, and the vent pipes (142) are arranged in a one-to-one correspondence with the first water inlet ends (231). At least two sealing members (152) are provided, and the sealing members (152) are arranged in a one-to-one correspondence with the second water inlet ends (232).

10. The water valve airtightness testing device according to claim 9, characterized in that, At least two of each of the positioning element (11), the first driving structure (141), the second driving structure (151), the third driving structure (131), and the fourth driving structure (16) are provided. The positioning element (11) is provided in a one-to-one correspondence with the water valve (2), the first driving structure (141), the second driving structure (151), the third driving structure (131), and the fourth driving structure (16).

Images