Airtight and watertight performance detection tool

Abstract

The utility model discloses an airtight and watertight performance detection tool comprising a mobile station, a bidirectional adjusting mechanism, a detection member and a connecting member. The two-way adjusting mechanism is provided with two movable ends and is used for driving the two movable ends to move in opposite directions; the detection pieces are installed at the movable ends of the bidirectional adjusting mechanisms in a one-to-one correspondence mode, and a plurality of instrument connecting ports are installed on the detection pieces and used for installing detection instruments. The connecting pieces are detachably installed on the detection pieces in a one-to-one correspondence mode and are used for being flatly pressed to the inlet and outlet port planes of the detected part respectively. According to the utility model, through the mobile station, the bidirectional adjusting mechanism, the detection piece and the connecting piece, pipelines and valves with different sizes are matched with a replaceable connecting piece structure, and under the driving of the bidirectional adjusting mechanism, clamping positioning is formed for detection on the airtight and watertight performance of parts such as the pipelines and the valves, so that the detection efficiency is improved. And adaptation and detection of pipelines and valves with multiple sizes can be carried out by using one tool test bench.

Description

Technical Field

[0001] This utility model relates to the field of airtightness and watertightness performance testing, specifically to an airtightness and watertightness performance testing fixture. Background Technology

[0002] Airtightness and watertightness testing fixtures are used to check the airtightness and watertightness of components after installation. The general testing method involves venting or venting water for a certain period and then determining whether the components meet technical requirements based on flow rate indicators. For example, Chinese Patent 202020682435.X discloses a drainage pipe testing device, including a first pipe, a second pipe, and a third pipe. The first and second pipes are connected by a first flow meter fixing device, and the second and third pipes are connected by a second flow meter fixing device. When airtightness testing of the drainage pipe is required, water is passed sequentially through the two flow meters, and the changes in the flow meter readings are observed, thus facilitating rapid airtightness testing of the drainage pipe.

[0003] Currently, for components in pipelines and valves with coaxially arranged inlet and outlet ports, although they share the common feature of coaxial arrangement of inlet and outlet ports, the testing of airtightness and watertightness still requires various types of tooling test benches to match the positioning and testing of different pipelines or valves due to variations in size and shape. The tooling is complicated and inconvenient to manage and operate. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose an airtight and watertight performance testing fixture, which solves the technical problem that the existing technology requires multiple types of tooling test benches for testing the airtight and watertight performance of components such as pipes and valves.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a tooling for testing airtightness and watertightness, comprising:

[0007] Mobile station;

[0008] A bidirectional adjustment mechanism having two movable ends for driving the two movable ends to move in opposite directions;

[0009] Each testing component is installed one-to-one on the movable end of the bidirectional adjustment mechanism, and each component has multiple instrument connection ports for mounting testing instruments; and

[0010] The connectors are detachably and one-to-one installed on the test piece, and are used to press flat onto the inlet and outlet planes of the part being tested.

[0011] In some embodiments, the detection element includes a connector and a frustum-shaped cylinder, the connector being connected to the smaller diameter end of the frustum-shaped cylinder, and the connector being used to connect to a gas supply pipe or a water supply pipe.

[0012] In some embodiments, the connector includes a cylinder, an annular plate, and a insert, wherein the cylinder, the annular plate, and the insert are coaxially connected in sequence, the cylinder is detachably connected to the detection element, the insert is used to be inserted into the inside of the inlet / outlet port of the part under test, and the annular plate is used to press and seal the end face of the inlet / outlet port of the part under test.

[0013] In some embodiments, a clamping member is further included, the clamping member including a telescopic mechanism and a collar, the telescopic mechanism being detachably mounted on the frustum cylinder, the telescopic end of the telescopic mechanism being connected to the collar, the collar abutting against the side of the ring plate away from the frustum cylinder, for telescopically pulling the collar, so that the cylinder on the connector is coaxially pressed against the large-diameter end of the frustum cylinder.

[0014] In some embodiments, the large-diameter end of the frustum-shaped cylinder is provided with an outer ring, and the cylinder is inserted into the inner side of the outer ring.

[0015] In some embodiments, an arc surface is provided between the inner sides of the cylinder and the annular plate, transitioning to the insert.

[0016] In some embodiments, a sealing gasket is provided on the opposite side of both the annular plate and the cylinder.

[0017] In some embodiments, the outer side of the insert is provided with a flexible sleeve.

[0018] In some embodiments, a semi-circular ring is provided on the side of the outer ring away from the frustum cylinder for support at the bottom of the cylinder.

[0019] In some embodiments, the bidirectional adjustment mechanism includes a base, a bidirectional screw, a driving bevel gear, a driven bevel gear, a slider, and a handwheel. The base is mounted on the top of the moving platform. The bidirectional screw is rotatably connected to the inner side of the base. The driven bevel gear is coaxially connected to the bidirectional screw. The driving bevel gear is rotatably connected to the base and meshes with the driven bevel gear. The handwheel is coaxially connected to the driving bevel gear. The two sliders are respectively threaded onto two opposite threads of the bidirectional screw.

[0020] Compared with the prior art, the airtightness and watertightness performance testing fixture provided by this utility model, through a moving stage, a bidirectional adjustment mechanism, testing components and connecting components, and a replaceable connecting component structure, can be matched with pipes and valves of different sizes. Driven by the bidirectional adjustment mechanism, it forms a clamping and positioning for testing the airtightness and watertightness performance of components such as pipes and valves. A single fixture test bench can be used to adapt and test multiple sizes of pipes and valves. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the airtightness and watertightness testing fixture provided in this embodiment of the utility model;

[0022] Figure 2 This is a partial three-dimensional exploded view of the airtightness and watertightness testing fixture provided in this embodiment of the utility model;

[0023] Figure 3 This is a partial cross-sectional view of the airtightness and watertightness testing fixture provided in this embodiment of the utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Mobile station;

[0026] 2. Two-way adjustment mechanism; 21. Base; 22. Two-way screw; 23. Driving bevel gear; 24. Driven bevel gear; 25. Slider; 26. Handwheel;

[0027] 3. Testing component; 301. Instrument connection port; 31. Connector; 32. Frustum-shaped cylinder; 3201. Outer ring; 3202. Semicircular ring;

[0028] 4. Connecting parts; 41. Cylinder; 4101. Arc surface; 42. Ring plate; 4201. Sealing gasket; 43. Insert sleeve;

[0029] 5. Clamping component; 51. Telescopic mechanism; 52. Collar;

[0030] 6. The part being tested. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] To address the technical challenge of requiring various types of testing fixtures for airtight and watertight performance testing of components such as pipes and valves, this invention provides an airtight and watertight performance testing fixture. This fixture can be used to connect, support, and seal both ends of a matching pipe or valve by changing different connecting parts, and can then be used for subsequent airtight or watertight performance testing.

[0033] It should be noted that the airtightness and watertightness performance testing fixture described in this utility model is used for, but not limited to, pipes and valves. For ease of explanation, this utility model only uses the application of the airtightness and watertightness performance testing fixture to pipes and valves as an example for explanation. The principle of the airtightness and watertightness performance testing fixture applied to other types of equipment is essentially the same as that applied to pipes and valves, and will not be described in detail here.

[0034] Please see Figure 1-3 This utility model provides a testing fixture for airtightness and watertightness performance. The testing fixture includes a moving stage 1, a bidirectional adjustment mechanism 2, testing components 3, and connecting components 4. The bidirectional adjustment mechanism 2 has two movable ends for driving the two movable ends to move in opposite directions, i.e., the two movable ends move towards each other or move away from each other. The testing components 3 are installed one-to-one on the movable ends of the bidirectional adjustment mechanism 2, and are equipped with multiple instrument connection ports 301 for installing testing instruments. One end of the testing component 3 is used to connect to the medium delivery pipe, and the other end is used to dock with and communicate with the connecting components 4. The connecting components 4 are detachably connected one-to-one with the connecting components 4. It should be installed on the detection piece 3, and used to press flat onto the inlet and outlet planes of the part to be tested 6 respectively. The two connecting pieces 4 are respectively connected to the detection piece 3 on the corresponding side. Under the drive of the bidirectional adjustment mechanism 2, the part to be tested 6 is clamped between the two connecting pieces 4 to form a positioning. The connecting pieces 4 can be disassembled and replaced. It is only necessary to adapt the size to the inner diameter of the port of the part to be tested 6 as needed. A universal detection fixture body can be used, and the connecting pieces 4 can be replaced. Furthermore, since the connection piece 4 and the port of the part to be tested 6 are sealed by flat pressing, the inner diameter of the port can also be adapted between the inner and outer diameters of the connecting piece 4.

[0035] In use, the part to be tested 6 is suspended between two connecting parts 4 using a lifting device. Then, the two movable ends are moved closer to each other by the bidirectional adjustment mechanism 2, so that the two ends of the part to be tested 6, the inlet end and the outlet end of the pipe or valve are pressed together to form a sealed connection at both ends. Then, air or liquid is introduced into the detection element 3 at one end, and flows through the detection element 3, connecting parts 4 and the part to be tested 6 in sequence, and then flows out from the connecting parts 4 and detection element 3 on the other side in sequence. After a certain period of time, the flow rate index on the detection instrument connected to the instrument connection port 301 is used to determine whether the part meets the technical requirements.

[0036] Understandably, the detection elements 3 at both ends can also be configured such that air or liquid is introduced into one end of the detection element 3 while the other end of the detection element 3 is closed, forming a closed space connected to the part being tested 6. After reaching the detection pressure value, the air tightness and water tightness are judged by whether the pressure drop within a certain time is within the acceptable range.

[0037] In one embodiment, please refer to Figure 2 and Figure 3 In order to install connectors 4 with various variable matching sizes, the detection component 3 includes a connector 31 and a frustum cylinder 32. The connector 31 is connected to the small diameter end of the frustum cylinder 32. The connector 31 is used to connect to a gas supply pipe or a water supply pipe. The end connected to the gas supply pipe or water supply pipe is expanded outward by the frustum cylinder 32 to form a larger connection diameter, thereby increasing the variable range of the inner diameter of the connector 4.

[0038] Furthermore, the connecting member 4 includes a cylinder 41, an annular plate 42, and an insert 43. The cylinder 41, the annular plate 42, and the insert 43 are coaxially connected in sequence. The cylinder 41 is detachably connected to the detection member 3. The insert 43 is used to insert into the inner side of the inlet / outlet port of the part under test 6. When the outer diameter of the insert 43 matches the inner diameter of the inlet / outlet port of the part under test 6, it can provide internal support. The annular plate 42 is used to press and seal the end face of the inlet / outlet port of the part under test 6. The annular plate 42 is used to seal the inlet / outlet port of the part under test 6.

[0039] Understandably, in order to obtain better test data, the insert 43 is selected to match the inner diameter of the inlet and outlet ports of the part being tested 6 to reduce fluid fluctuations when liquid enters and exits; depending on the inner diameter of the port, the connector 4 has different dimensions, mainly the size of the insert 43.

[0040] In one embodiment, please refer to Figure 2 and Figure 3 To facilitate quick installation and disassembly of the connector 4, a clamping component 5 is also included. The clamping component 5 comprises a telescopic mechanism 51 and a collar 52. The telescopic mechanism 51 is detachably mounted on the frustum 32, and its telescopic end is connected to the collar 52. A gap is formed between the collar 52 and the frustum 32, which is used for inserting the connector 4. In the installation position, the collar 52 abuts against the side of the ring plate 42 away from the frustum 32, and is used to telescopically pull the collar 52 so that the cylinder 41 on the connector 4 is coaxially pressed against the large-diameter end of the frustum 32. That is, the collar 52 presses the connector 4 into the gap position and fixes it, thereby forming a connection. During disassembly, the telescopic mechanism 51 extends and the collar 52 is released, thereby releasing the clamping on the connector 4 and allowing the connector 4 to be removed from the gap.

[0041] Furthermore, in order to provide positioning during insertion, the large-diameter end of the frustum 32 is provided with an outer ring 3201, and the cylinder 41 is inserted into the inner side of the outer ring 3201 to provide axial positioning. In addition, the outer ring 3201 can provide a sealing effect in the connection gap.

[0042] Furthermore, in order to reduce the fluctuation of fluid flowing from the cylinder 41 into the insert 43, an arc surface 4101 is provided between the inner side of the cylinder 41 and the ring plate 42, which transitions to the insert 43 to guide the flow direction of the fluid.

[0043] Furthermore, in order to provide sealing performance, sealing gaskets 4201 are provided on the opposite sides of the ring plate 42 and the cylinder 41, respectively providing a seal between the connector 4 and the frustum cylinder 32, and a seal between the connector 4 and the part under test 6.

[0044] Furthermore, in order to protect the internal threads on the inner side of the port of the tested part 6, a flexible sleeve is provided on the outer side of the insert 43.

[0045] In one embodiment, please refer to Figure 1 The bidirectional adjustment mechanism 2 includes a base 21, a bidirectional screw 22, a driving bevel gear 23, a driven bevel gear 24, sliders 25, and a handwheel 26. The base 21 is mounted on the top of the moving platform 1. The bidirectional screw 22 is rotatably connected to the inner side of the base 21. The driven bevel gear 24 is coaxially connected to the bidirectional screw 22. The driving bevel gear 23 is rotatably connected to the base 21 and meshes with the driven bevel gear 24. The handwheel 26 is coaxially connected to the driving bevel gear 23. The two sliders 25 are respectively threaded onto two opposite threads of the bidirectional screw 22. By rotating the handwheel 26, the driving bevel gear 23 is driven to rotate, which in turn drives the driven bevel gear 24 to rotate. The driven bevel gear 24 then drives the bidirectional screw 22 to rotate. Through the two opposite threads on the bidirectional screw 22, the two sliders 25 are respectively driven to slide along the linear groove on the base 21, forming a movement that is relatively close or relatively far apart.

[0046] Furthermore, a semi-circular ring 3202 is provided on the side of the outer ring 3201 away from the frustum cylinder 32 for supporting the bottom of the cylinder 41.

[0047] Furthermore, the telescopic mechanism 51 is connected to the frustum 32 by bolts, the frustum 32 is connected to the slider 25 by bolts, and the collar 52 is connected to the telescopic mechanism 51 by bolts.

[0048] Understandably, if the inner diameter of the pipe or valve port of the batch to be tested differs significantly from the size of the frustum 32, in order to reduce the testing error that may be caused by the change in inner diameter, the testing component 3 with an inner diameter that is less different from the inner diameter of the port of the component in the batch to be tested can be selected. Correspondingly, the connecting component 4 and the collar 52 with matching installation dimensions can be used, and the telescopic mechanism 51 can be universal.

[0049] To better understand this utility model, the following is combined with... Figures 1 to 3 The technical solution of this utility model is described in detail as follows: The part to be tested 6 is suspended between two connecting parts 4 by a lifting device. Then, by rotating the handwheel 26, the two ends of the part to be tested 6 are pressed together by the connecting parts 4 to form a sealed connection at both ends. Then, the air tightness or water tightness is tested by the connector 31 on the detection part 3 at one end as needed. The air supply pipe or water supply pipe is selected and connected. The water flows through the detection part 3, the connecting parts 4 and the part to be tested in sequence, and then flows out from the connecting parts 4 and the detection part 3 on the other side in sequence. After a certain period of time, the flow rate index on the detection instrument connected to the instrument connection port 301 is used to determine whether the part meets the technical requirements. If the connecting part 4 needs to be replaced, the telescopic mechanism 51 is extended to loosen the clamping of the collar 52 on the connecting part 4, and the connecting part 4 can be pulled upward from the gap between the collar 52 and the frustum cylinder 32.

[0050] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An air and water tightness performance detection tool, characterized in that, include: Mobile station; A bidirectional adjustment mechanism having two movable ends for driving the two movable ends to move in opposite directions; The detection components are installed one-to-one on the movable end of the bidirectional adjustment mechanism, and multiple instrument connection ports are installed on them for installing detection instruments; as well as The connectors are detachably and one-to-one installed on the test piece, and are used to press flat onto the inlet and outlet planes of the part being tested.

2. The air and water tightness performance detection tooling of claim 1, wherein, The testing component includes a connector and a frustum-shaped cylinder. The connector is connected to the small-diameter end of the frustum-shaped cylinder and is used to connect to a gas supply pipe or a water supply pipe.

3. The air and water tightness performance detection tooling of claim 2, wherein, The connector includes a cylinder, an annular plate, and a insert. The cylinder, the annular plate, and the insert are coaxially connected in sequence. The cylinder is detachably connected to the test piece. The insert is used to be inserted into the inside of the inlet / outlet port of the part being tested. The annular plate is used to press and seal the end face of the inlet / outlet port of the part being tested.

4. The air and water tightness performance detection tooling of claim 3, wherein, It also includes a clamping component, which includes a telescopic mechanism and a collar. The telescopic mechanism is detachably mounted on the frustum cylinder, and its telescopic end is connected to the collar. The collar abuts against the side of the ring plate away from the frustum cylinder and is used to telescopically pull the collar so that the cylinder on the connector is coaxially pressed against the large-diameter end of the frustum cylinder.

5. The air and water tightness performance detection tooling of claim 4, wherein, The large-diameter end of the frustum is provided with an outer ring, and the cylinder is inserted into the inner side of the outer ring.

6. The air and water tightness performance detection tooling of claim 5, wherein, The inner side of the cylinder and the ring plate is provided with an arc-shaped transition to the insert.

7. The air and water tightness performance detection tooling of claim 6, wherein, Both the ring plate and the cylinder are provided with sealing gaskets on opposite sides.

8. The air and water tightness performance detection tooling of claim 7, wherein, The outer side of the insert is provided with a flexible sleeve.

9. The airtightness and watertightness testing fixture according to claim 8, characterized in that, The outer ring has a semi-circular ring on the side away from the frustum cylinder, which is used to support the bottom of the cylinder.

10. The air and water tightness performance detection tooling of claim 9, wherein, The bidirectional adjustment mechanism includes a base, a bidirectional screw, a driving bevel gear, a driven bevel gear, a slider, and a handwheel. The base is mounted on the top of the moving platform. The bidirectional screw is rotatably connected to the inner side of the base. The driven bevel gear is coaxially connected to the bidirectional screw. The driving bevel gear is rotatably connected to the base and meshes with the driven bevel gear. The handwheel is coaxially connected to the driving bevel gear. The two sliders are respectively threaded onto two opposite threads of the bidirectional screw.

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