A sealing detection tool for a pump
By designing a sealing test fixture suitable for pumps, and using a bidirectional threaded rod and adjustment components, the compatibility problem of different pump body interface orientations was solved, enabling rapid and accurate pump body sealing test and improving test efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI LINGTONG CASTING CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-28
AI Technical Summary
Existing pump seal testing equipment has low adaptability and cannot flexibly handle different pump body interface orientations, resulting in a significant amount of time and manpower being spent on adjustments during the testing process, which affects testing efficiency.
A pump sealing test fixture was designed, which uses a clamping screw with a bidirectional threaded rod structure and an adjustment component, along with a multi-dimensional clamping and locking mechanism, to achieve rapid positioning and precise docking of different pump bodies, simplifying the test preparation process.
It improves the versatility and efficiency of testing equipment, reduces preparation time before testing, and enables rapid and precise sealing connection of different pump bodies.
Smart Images

Figure CN224568409U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of testing tooling technology, and more specifically, it relates to a pump seal testing tooling. Background Technology
[0002] Pumps, as fluid transport devices widely used in many fields such as industry, agriculture, construction, and medicine, play a crucial role in the production efficiency and system safety of various industries due to their stable operation. Traditional pump seal testing methods rely on human experience to judge, such as observing whether there is media leakage around the pump body or listening for abnormal sounds during operation to assess the sealing condition. This method is highly subjective, has low detection accuracy, and is difficult to detect tiny leaks. Moreover, for pumps with complex internal structures, manual inspection cannot fully cover all sealing parts. Some traditional testing equipment also has cumbersome operation procedures and low testing efficiency, which cannot meet the needs of rapid pump testing in modern large-scale production. Therefore, a testing fixture is needed to facilitate the testing and processing of pump sealing.
[0003] Based on existing technology, it has been found that existing testing fixtures are usually pre-sized according to the pump body model, which means that the fixtures can only clamp a single model, resulting in low adaptability. In the docking process between the fixture and the pump body, the interface orientation of different types of pump bodies also varies. Traditional fixtures cannot flexibly cope with this situation of varying interface orientation, which requires a lot of time and manpower to readjust and install the pump body or fixture during the testing process, seriously affecting the testing efficiency. Utility Model Content
[0004] To address the aforementioned technical problems, this utility model relates to a pump sealing testing fixture, which solves the problem that the interface orientations of different types of pumps vary, and traditional fixtures cannot flexibly handle such variable interface orientations. As a result, a lot of time and manpower are required to readjust and reinstall the pump or fixture during the testing process, which seriously affects the testing efficiency.
[0005] This utility model provides a pump seal testing fixture, which is achieved by the following specific technical means:
[0006] A pump sealing test fixture includes: a support base; side support frames fixedly connected to the left and right sides of the support base; a top support block fixedly connected to the top of the support base; an internal adjustment groove opened inside the top support block; a clamping screw rotatably connected to the internal adjustment groove through a shaft hole; two sets of drive frames slidably connected inside the internal adjustment groove; clamping base frames fixedly connected to the two sets of drive frames; placement brackets provided inside the two sets of side support frames; docking chucks fixedly connected to the two sets of placement brackets; three sets of circumferentially distributed tightening calipers slidably connected to the two sets of docking chucks; locking brackets fixedly connected to the six sets of tightening calipers; sealing plates fixedly connected to the inner sides of the two sets of docking chucks; and an inflation port fixedly connected to the outer wall of the sealing plate.
[0007] Preferably, each of the two sets of side support frames has a slot; the top support block is configured as a cuboid structure.
[0008] Preferably, the inner adjusting groove is connected to four sets of rectangular through holes; the inner adjusting groove is connected to a shaft hole; and the clamping screw is configured as a bidirectional threaded rod structure.
[0009] Preferably, the two sets of drive frames are configured as U-shaped structures, and the two sets of drive frames can extend out from the rectangular through holes connected by the inner adjustment grooves; the two sets of drive frames are respectively provided with threaded through holes, and the two sets of drive frames are respectively threadedly connected to the clamping screw through the threaded through holes.
[0010] Preferably, each of the two sets of placement card holders has four sets of circumferentially distributed gripping holes; the interior of each of the two sets of docking chucks is provided with an adjustment component.
[0011] Preferably, the two sets of docking chucks control the corresponding tightening calipers through internal adjustment components; the six sets of locking brackets can be locked to the external ports of the pump body.
[0012] Preferably, the sealing plates are respectively aligned with the external ports of the pump body; the sealing plates are respectively provided with air passage grooves inside; and the air inlet is connected to the air passage grooves inside the sealing plates.
[0013] The pump seal testing fixture proposed in this utility model has the following beneficial effects:
[0014] 1. The clamping screw with a bidirectional threaded rod structure drives two sets of drive frames to adjust synchronously. With the linkage adjustment of the clamping base frame, it can flexibly adapt to pump bodies of different diameters and different external dimensions. It can achieve quick clamping and positioning by simply rotating the clamping screw, without the need to replace or customize special tooling, which significantly improves the versatility of the testing equipment.
[0015] 2. The three sets of circumferentially distributed tightening calipers are driven to slide radially by the adjustment components inside the docking chuck. Combined with the multi-dimensional clamping of the locking bracket, it is possible to achieve fast and accurate docking of interfaces in any direction. During testing, there is no need to make complex position adjustments or flips to the pump body. Simply adjust the angle of the docking chuck and drive the tightening calipers to complete the sealing connection, which greatly shortens the preparation time before testing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the three-dimensional assembly structure of this utility model from a bottom view.
[0018] Figure 3 This is an exploded structural diagram of the present invention.
[0019] Figure 4 This is an exploded bottom view structural diagram of this utility model.
[0020] Figure 5 This is a partial cross-sectional bottom view of the structure of this utility model.
[0021] Figure 6 This utility model is composed of Figure 5 A schematic diagram of the enlarged structure of part A.
[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0023] 1. Support base frame; 2. Side support frame; 3. Top support block; 4. Inner adjustment groove; 5. Clamping screw; 6. Drive frame; 7. Clamping base frame; 8. Placement bracket; 9. Connecting chuck; 10. Tightening caliper; 11. Locking bracket; 12. Sealing plate; 13. Inflation interface. Detailed Implementation
[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.
[0025] Example 1: As shown in the attached document Figure 1 To be continued Figure 6As shown: This utility model provides a pump sealing test fixture, including: a support base frame 1; the support base frame 1 is used to assist in the installation and fixation of other structures of the fixture, so as to keep it stable during the pump body testing process; side support frames 2 are fixedly connected to the left and right sides of the support base frame 1 respectively; the side support frames 2 are used to cooperate with the clamping bracket 8 to process the docking chuck 9 and the sealing plate 12 in the idle state, so as to facilitate its use; a top support block 3 is fixedly connected to the top of the support base frame 1; the top support block 3 is used to cooperate with the inner adjusting groove 4 to install the clamping screw 5 and the drive frame 6, so as to control the clamping base frame 7 to clamp the pump body, so as to keep the pump body stable during the testing process, and at the same time, to process the pump body. The pump body is supported by a top support block 3 with an internal adjustment groove 4. The internal adjustment groove 4 assists in the installation of the clamping screw 5 and the drive frame 6, facilitating adjustment to maintain pump stability during testing. The internal adjustment groove 4 is rotatably connected to the clamping screw 5 via a shaft hole. The clamping screw 5 controls the direction adjustment of the two drive frames 6 via a bidirectional screw, facilitating pump body fixation. The internal adjustment groove 4 also has two sliding connections to the drive frames 6. The drive frames 6 are used for direction adjustment under the control of the clamping screw 5, and during adjustment, they cooperate with the clamping base frame 7 to fix the pump body. Clamping base frames 7 are fixed to each of the two drive frames 6. The clamping base frames 7 are used to support the drive frames 6. The pump body is fixed in place to maintain its stability during testing. Each of the two sets of side support frames 2 has a placement bracket 8 inside. The placement bracket 8 assists in fixing the docking chuck 9, allowing it to be placed when idle. Each of the two sets of placement brackets 8 has a docking chuck 9 fixedly connected to it. The docking chuck 9 is used to control the tightening caliper 10 via an internal adjustment component, cooperating with the locking bracket 11 to clamp the interface end of the pump body, maintaining the seal between the pump body and the sealing plate 12. Three sets of circumferentially distributed tightening calipers 10 are slidably connected to each of the two sets of docking chucks 9. The tightening calipers 10 are used to adjust the position of the locking bracket 11, thereby ensuring the pump body is properly sealed. To ensure a stable connection between the sealing plate 12 and the pump body, facilitating its use; six sets of tightening calipers 10 are each fixedly equipped with a locking bracket 11; the locking bracket 11 is used to maintain the clamping state between the sealing plate 12 and the pump body, facilitating its use; the inner sides of the two sets of docking chucks 9 are each fixedly equipped with a sealing plate 12; the sealing plate 12 is used to maintain connection with the interface end of the pump body under the action of the docking chuck 9, so as to protect the pump body's sealing performance during the testing process; an inflation port 13 is fixedly connected to the outer wall of the sealing plate 12; the inflation port 13 is used to connect with external inflation equipment to cooperate with the sealing plate 12 to add gas into the pump body, thereby testing the sealing performance of the pump body.
[0026] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 6 As shown, the two sets of side supports 2 are respectively provided with slots; the top support block 3 is set as a cuboid structure.
[0027] The inner adjusting groove 4 is connected to four sets of rectangular through holes; the inner adjusting groove 4 is connected to a shaft hole; the clamping screw 5 is set as a two-way threaded rod structure.
[0028] The two sets of drive frames 6 are respectively set as U-shaped structures, and the two sets of drive frames 6 can extend out from the rectangular through holes connected to the inner adjustment groove 4; the two sets of drive frames 6 are respectively provided with threaded through holes, and the two sets of drive frames 6 are respectively threadedly connected to the clamping screw 5 through the threaded through holes.
[0029] Each of the two sets of card holders 8 has four sets of gripping holes arranged in a circle; each of the two sets of docking chucks 9 has an adjustment component inside.
[0030] The two sets of docking chucks 9 control the corresponding tightening calipers 10 through internal adjustment components; the six sets of locking brackets 11 can be locked to the external ports of the pump body.
[0031] The sealing plates 12 are respectively aligned with the external ports of the pump body; the sealing plates 12 are respectively provided with air passage grooves; the air inlet 13 is connected to the air passage grooves inside the sealing plates 12.
[0032] The specific usage and function of this embodiment are as follows:
[0033] In this invention, during use, the pump body to be tested is placed on the top support block 3 for support. Then, the clamping screw 5 is rotated using a tool, and the clamping screw 5 is adjusted in position via the bidirectional thread control of the drive frame 6 during rotation. This facilitates the clamping base frame 7 to clamp the pump body, ensuring overall stability. Then, the placement bracket 8 is used to remove the docking chuck 9 from the side support frame 2, aligning the sealing plate 12 with the interface end of the pump body. After alignment, the adjustment component inside the docking chuck 9 is adjusted to drive the tightening caliper 10 for adjustment. During adjustment, the locking bracket 11 is used to lock the interface end of the pump body, ensuring stability between the interface end and the sealing plate 12. The sealing plate 12 also maintains the pump body's airtightness. Finally, the air inlet 13 is connected to an external air inflation device to test the pump body's airtightness by inflating it.
[0034] The following points should be noted in this article:
[0035] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.
[0036] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.
[0037] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.
Claims
1. A pump seal testing fixture, comprising: Support base frame (1); characterized in that: side support frames (2) are fixedly connected to the left and right sides of the support base frame (1); a top support block (3) is fixedly connected to the top of the support base frame (1); an inner adjustment groove (4) is opened inside the top support block (3); a clamping screw (5) is rotatably connected to the inside of the inner adjustment groove (4) through a shaft hole; two sets of drive frames (6) are slidably connected inside the inner adjustment groove (4); clamping base frames (7) are fixedly connected to the two sets of drive frames (6); two sets The side support frame (2) is provided with a placement bracket (8) inside; two sets of placement brackets (8) are fixedly connected to docking chucks (9); three sets of circumferentially distributed tightening calipers (10) are slidably connected to the two sets of docking chucks (9); locking brackets (11) are fixedly connected to the six sets of tightening calipers (10); sealing plates (12) are fixedly connected to the inner side of the two sets of docking chucks (9); an inflation port (13) is fixedly connected to the outer wall of the sealing plate (12).
2. The pump seal testing fixture according to claim 1, characterized in that: The two sets of side support frames (2) are respectively provided with slots; the top support block (3) is set as a cuboid structure.
3. The pump seal testing fixture according to claim 1, characterized in that: The inner adjusting groove (4) is connected to four sets of rectangular through holes; the inner adjusting groove (4) is connected to a shaft hole; the clamping screw (5) is configured as a bidirectional threaded rod structure.
4. The pump seal testing fixture according to claim 1, characterized in that: The two sets of drive frames (6) are respectively set as U-shaped structures. The two sets of drive frames (6) can extend out from the rectangular through holes connected by the inner adjustment groove (4). The two sets of drive frames (6) are respectively provided with threaded through holes. The two sets of drive frames (6) are respectively threadedly connected to the clamping screw (5) through the threaded through holes.
5. The pump seal testing fixture according to claim 1, characterized in that: The two sets of placement card holders (8) are each provided with four sets of gripping holes arranged in a circle; the two sets of docking chucks (9) are each provided with an adjustment component inside.
6. The pump seal testing fixture according to claim 1, characterized in that: The two sets of docking chucks (9) control the corresponding tightening calipers (10) through internal adjustment components; the six sets of locking brackets (11) can be locked to the external ports of the pump body.
7. The pump seal testing fixture according to claim 1, characterized in that: The sealing plates (12) are respectively aligned with the external ports of the pump body; the sealing plates (12) are respectively provided with air passage grooves inside; the air inlet (13) is connected to the air passage grooves inside the sealing plates (12).