A protection structure for a water pump detection device

Abstract

The utility model discloses a kind of protection structure for water pump detection device belongs to water pump detection technical field;The structure includes rack, base, hydraulic cylinder and connecting plate;The protection structure includes fixed mechanism and self-adapting mechanism;The fixed mechanism is fixedly connected in the connecting plate, and the fixed mechanism includes connecting slide bar, sliding plate, inclined sliding hole, connecting block and clamping pad, the connecting slide bar pushes the sliding plate along the inclined sliding hole sliding, and the sliding plate drives the connecting block to drive the clamping pad to realize clamping.The utility model utilizes single hydraulic cylinder drive, and the inclined sliding hole of fixed mechanism is matched with sliding plate to convert vertical force into horizontal clamping force, and simultaneously realizes elastic self-adapting sealing by the relative sliding compression disc spring of fixed mechanism and sleeve rod, solve the problem that structure is complex, sealing is unreliable, compact structure, and strong applicability.

Description

Technical Field

[0001] This utility model relates to the field of water pump testing technology, and in particular to a protective structure for a water pump testing device. Background Technology

[0002] Water pumps, especially electric water pumps, are critical components for fluid transport and are widely used in the automotive, home appliance, and industrial sectors. To ensure the quality of water pumps before they leave the factory, rigorous performance testing is essential, including high-pressure sealing tests. Specific tooling fixtures, or protective structures, are required to assist in the testing process when performing such tests.

[0003] The existing protective structure needs to achieve two basic functions: First, it must securely clamp the water pump body to prevent displacement or vibration when the water pump is injected with high-pressure test medium, ensuring the safety and stability of the test; second, it must ensure a reliable sealed connection between the test interface and the test port of the water pump to ensure that the test medium can be injected accurately and without leakage.

[0004] Existing technical solutions typically employ complex methods to achieve the aforementioned functions. For example, some structures use multiple independent drive sources (such as multiple air cylinders or hydraulic cylinders) to control the lateral clamping mechanism and the longitudinal sealing mechanism separately. This design results in a complex, bulky, and costly protective structure, and makes it difficult to ensure precise synchronization of the clamping and sealing actions.

[0005] More importantly, in the sealing process, due to the unavoidable dimensional tolerances in the height of electric water pumps during mass production, or slight unevenness of the mounting surface, traditional rigid sealing structures are difficult to adapt to these minor changes. If the downward stroke is fixed, insufficient pressure may lead to seal failure, or excessive pressure may damage the pump port.

[0006] Therefore, this utility model proposes a water pump testing device to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above deficiencies, this utility model provides a protective structure for a water pump testing device, aiming to improve the technical problems in the prior art. When clamping and sealing, the water pump testing device is difficult to ensure stable clamping force and reliable sealing at the same time, and it cannot effectively accommodate water pumps of different heights, resulting in poor applicability and unreliable sealing of its protective structure.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a protective structure for a water pump testing device, comprising: a frame; a base, the base being disposed inside the frame; a hydraulic cylinder, the hydraulic cylinder being mounted on the top of the frame; a connecting plate, the connecting plate being driven to the output end of the hydraulic cylinder; and a fixing mechanism and an adaptive mechanism.

[0009] The fixing mechanism is fixedly connected to the connecting plate. The fixing mechanism includes a connecting slide rod, a sliding plate, an inclined sliding hole, a connecting block, and a clamping pad. The connecting slide rod pushes the sliding plate to slide along the inclined sliding hole, the sliding plate drives the connecting block, and the connecting block is fixedly connected to the clamping pad.

[0010] Furthermore, the adaptive mechanism includes a sleeve rod, a sealing head, and a disc spring. The sleeve rod is slidably installed inside the fixing mechanism, the sealing head is fixed to the lower end of the sleeve rod, and the disc spring is sleeved on the outside of the sleeve rod and elastically abuts against the sleeve rod and the fixing mechanism.

[0011] Preferably, a guide rod is fixedly connected to the lower part of the connecting plate, and a guide seat is fixed inside the frame, with the guide rod and the guide seat slidingly engaged.

[0012] Preferably, the sealing head is fixed to the lower end of the sleeve rod by a threaded rod, and the threaded rod is threaded to the inner wall of the sleeve rod.

[0013] Preferably, a pressure rod is also fixedly installed at the lower end of the threaded rod, and the pressure rod is located beside the sealing head.

[0014] Preferably, the adaptive mechanism further includes a locking nut, which is screwed onto the threaded rod.

[0015] Preferably, the adaptive mechanism further includes a fixing ring, which is fixed to the outer wall of the sleeve rod, and the disc spring elastically abuts against the fixing ring and the inner wall of the fixing mechanism.

[0016] Preferably, the sealing head has a hollow structure, and the protective structure is provided with a hydraulic test interface, which is fluidly connected to the interior of the sealing head.

[0017] Preferably, a controller is mounted on the outside of the frame, and the controller is electrically connected to the hydraulic cylinder.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, by setting an adaptive mechanism and a fixed mechanism, the disc spring is compressed by the relative sliding of the sleeve rod of the adaptive mechanism and the fixed mechanism. At the same time, the vertical driving force is converted into a horizontal clamping force by the connecting slide rod, sliding plate and oblique sliding hole inside the fixed mechanism. This solves the problems of unreliable sealing due to height tolerance, complex clamping structure, need for multiple power sources and bulky structure in the prior art. It achieves the technical effect of using a single power source to realize elastic adaptive compression sealing and simultaneously complete stable clamping, with a compact structure and high efficiency and reliability.

[0020] 2. In this utility model, a threaded rod is set inside the sleeve rod of the adaptive mechanism to adjust the height of the sealing head and the pressure rod, and locked with a locking nut. At the same time, a guide rod and a guide seat are set to guide the overall movement. This solves the problems of the existing protective structure being incompatible with water pumps of different heights, having poor applicability, and being prone to swaying or vibration and poor stability during pressing and testing. It achieves the technical effect of convenient adjustment to be compatible with different models of water pumps, ensuring stable operation and secure fixation, and greatly improving the versatility and detection accuracy of the device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a protective structure for a water pump testing device proposed in this utility model.

[0022] Figure 2 This is a schematic diagram of the fixing mechanism of the protective structure for a water pump testing device proposed in this utility model;

[0023] Figure 3 This is a schematic diagram of the frame structure of a protective structure for a water pump testing device proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the padding portion of a protective structure for a water pump testing device proposed in this utility model.

[0025] Figure 5 This is a schematic diagram of the adaptive mechanism of the protective structure for a water pump testing device proposed in this utility model.

[0026] Legend:

[0027] 1. Frame; 2. Controller; 3. Base; 4. Electronic water pump; 5. Hydraulic test interface; 6. Connecting plate; 7. Hydraulic cylinder; 8. Guide rod; 9. Guide seat; 10. Fixing mechanism; 1001. Sliding plate; 1002. Slanted sliding hole; 1003. Connecting block; 1004. Clamping pad; 1005. Connecting slide rod; 11. Adaptive mechanism; 1101. Sleeve rod; 1102. Fixing ring; 1103. Disc spring; 1104. Threaded rod; 1105. Locking nut; 12. Sealing head; 13. Pressure rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example:

[0030] Please refer to Figures 1 to 5 This utility model provides a protective structure for a water pump testing device, aiming to solve the technical problems in the prior art. When clamping and sealing, the water pump testing device is difficult to ensure stable clamping force and reliable sealing at the same time, and it cannot effectively accommodate water pumps of different heights, resulting in poor applicability and unreliable sealing of its protective structure.

[0031] The protective structure of the water pump testing device includes a frame 1, a base 3 disposed inside the frame 1, and the base 3 is used to place the electronic water pump 4; a hydraulic cylinder 7 is installed on the top of the frame 1; a controller 2 is installed on the outside of the frame 1 and is electrically connected to the hydraulic cylinder 7; a connecting plate 6 is driven and connected to the output end of the hydraulic cylinder 7; a guide rod 8 is fixedly connected to the bottom of the connecting plate 6, and a guide seat 9 is fixed inside the frame 1, with the guide rod 8 and the guide seat 9 slidingly engaged; the protective structure includes a fixing mechanism 10 and an adaptive mechanism 11, the fixing mechanism 10 is fixedly connected to the connecting plate 6, and the adaptive mechanism 11 includes a sleeve rod 1101, which is slidably installed inside the fixing mechanism 10.

[0032] The fixing mechanism 10 includes a connecting slide rod 1005, a sliding plate 1001, an oblique sliding hole 1002, a connecting block 1003, and a clamping pad 1004; the fixing mechanism 10 is fixedly connected to the connecting plate 6; the connecting slide rod 1005 pushes the sliding plate 1001; the sliding plate 1001 slides along the oblique sliding hole 1002 inside the fixing mechanism 10; the sliding plate 1001 drives the connecting block 1003 during the sliding process; the connecting block 1003 fixes the clamping pad 1004; this cooperation structure between the oblique sliding hole 1002 and the sliding plate 1001 converts the vertical movement applied by the connecting plate 6 into the horizontal clamping movement of the clamping pad 1004;

[0033] Meanwhile, the adaptive mechanism 11 includes a sleeve rod 1101, a sealing head 12, and a disc spring 1103; the sleeve rod 1101 is slidably installed inside the fixing mechanism 10; the sealing head 12 is fixed to the lower end of the sleeve rod 1101; the disc spring 1103 is sleeved on the outside of the sleeve rod 1101 and elastically abuts against the sleeve rod 1101 and the fixing mechanism 10.

[0034] To achieve height adjustment and reliable sealing, the adaptive mechanism 11 also includes a threaded rod 1104; the sealing head 12 is fixed to the lower end of the sleeve rod 1101 via the threaded rod 1104; the threaded rod 1104 is threaded to the inner wall of the sleeve rod 1101; a pressure rod 13 is also fixedly installed at the lower end of the threaded rod 1104; the pressure rod 13 is located beside the sealing head 12; the adaptive mechanism 11 also includes a locking nut 1105; the locking nut 1105 is screwed onto the threaded rod 1104.

[0035] To achieve reliable elastic contact, the adaptive mechanism 11 also includes a retaining ring 1102; the retaining ring 1102 is fixed to the outer wall of the sleeve rod 1101; the disc spring 1103 specifically elastically contacts the retaining ring 1102 and the inner wall of the fixing mechanism 10;

[0036] To enable the testing function, the sealing head 12 has a hollow structure; the protective structure is equipped with a hydraulic test interface 5; the hydraulic test interface 5 is fluidly connected to the interior of the sealing head 12.

[0037] In a preferred embodiment, in order to improve the stability and guiding accuracy of the connecting plate 6 during the pressing process, a guide rod 8 is fixedly connected to the bottom of the connecting plate 6, and a guide seat 9 is fixedly fixed inside the frame 1. The rod body of the guide rod 8 slides in the inner hole of the guide seat 9. Through the cooperation between the guide rod 8 and the guide seat 9, it is ensured that the connecting plate 6 rises and falls strictly along the vertical path under the drive of the hydraulic cylinder 7, preventing swaying.

[0038] In a preferred embodiment, in order to achieve the adjustability of the height of the sealing head 12 to accommodate different specifications of electronic water pumps 4, the sealing head 12 is fixed to the lower end of the sleeve rod 1101 by a threaded rod 1104. The external thread of the threaded rod 1104 is threadedly connected to the internal thread of the sleeve rod 1101. By rotating the threaded rod 1104, the depth of the threaded rod 1104 screwed into the sleeve rod 1101 can be changed, thereby adjusting the vertical position of the sealing head 12.

[0039] In a preferred embodiment, in order to provide auxiliary clamping and fixing of the electric water pump 4 while sealing, a pressure rod 13 is also fixedly installed at the lower end of the threaded rod 1104. The pressure rod 13 is located on the side of the sealing head 12. The height of the pressure rod 13 and the sealing head 12 can be adjusted synchronously with the rotation of the threaded rod 1104. The pressure rod 13 is used to abut against the upper screw position of the electric water pump 4.

[0040] In a preferred embodiment, in order to lock the position after height adjustment to prevent loosening, the adaptive mechanism 11 also includes a locking nut 1105, which is screwed onto the threaded rod 1104. After adjusting to a suitable height, tightening the locking nut 1105 so that it abuts against the end face of the sleeve rod 1101 can lock the threaded rod 1104 by using the thread friction.

[0041] In a preferred embodiment, to clarify the force and installation structure of the disc spring 1103, the adaptive mechanism 11 further includes a fixing ring 1102. The fixing ring 1102 is fixed to the outer wall of the sleeve rod 1101. The disc spring 1103 is fitted onto the outside of the sleeve rod 1101. The upper end of the disc spring 1103 elastically abuts against the fixing ring 1102, and the lower end elastically abuts against the inner wall of the fixing mechanism 10. When the sleeve rod 1101 slides relative to the fixing mechanism 10, the disc spring 1103 is compressed between the fixing ring 1102 and the fixing mechanism 10.

[0042] In a preferred embodiment, in order to realize the injection of the test medium, the sealing head 12 is a hollow structure, and the protective structure is provided with a hydraulic test interface 5. The hydraulic test interface 5 is fluidly connected to the inside of the sealing head 12 through a pipeline (not shown). The test medium can be injected into the electronic water pump 4 through the hydraulic test interface 5 via the sealing head 12.

[0043] In a preferred embodiment, in order to control the operation of the device, a controller 2 is installed on the outside of the frame 1. The controller 2 is electrically connected to the electric control valve of the hydraulic cylinder 7 via a cable. The operator starts or stops the operation of the hydraulic cylinder 7 through the operation interface of the controller 2.

[0044] Working principle: The operator starts the hydraulic cylinder 7 through the controller 2 installed on the outside of the frame 1. The hydraulic cylinder 7 drives the connected connecting plate 6 to move downward. During the descent of the connecting plate 6, the guide rod 8 fixedly connected to the bottom of the connecting plate 6 slides with the guide seat 9 fixed inside the frame 1 to ensure that the connecting plate 6 descends smoothly and vertically.

[0045] The connecting plate 6 drives the fixed mechanism 10, which is fixedly connected, and the adaptive mechanism 11, which is slidably installed inside the fixed mechanism 10, to descend as a whole. When the sealing head 12 and the pressure rod 13 of the adaptive mechanism 11 contact the electronic water pump 4 on the base 3, the sleeve rod 1101 of the adaptive mechanism 11 stops descending. At this time, the hydraulic cylinder 7 continues to drive the connecting plate 6 to move the fixed mechanism 10 downward. The fixed mechanism 10 then slides relative to the already stopped sleeve rod 1101. This relative sliding compresses the sleeve on the outside of the sleeve rod 1101 and elastically abuts against the fixed ring 1102 and the fixed mechanism 10. The disc spring 1103 between the inner walls causes the sealing head 12 to press tightly against the test port of the electronic water pump 4. At the same time, the pressure rod 13 presses against the electronic water pump 4. On the other hand, during the downward movement of the fixing mechanism 10, the connecting slide rod 1005 inside the fixing mechanism 10 pushes the sliding plate 1001 to slide along the inclined sliding hole 1002. The guiding effect of the inclined sliding hole 1002 forces the sliding plate 1001 to move inward. The sliding plate 1001 drives the connecting block 1003. The connecting block 1003 drives the clamping pad 1004 of the fixed connection to move inward, thereby clamping the electronic water pump 4 from multiple sides.

[0046] Before operation, the initial height of the sealing head 12 and the pressure rod 13 can be adjusted by rotating the threaded rod 1104, which is threaded to the inner wall of the sleeve rod 1101. After adjustment, the locking nut 1105 screwed onto the threaded rod 1104 is used to lock it. When the electronic water pump 4 is clamped by the gasket 1004 and sealed by the sealing head 12, the test medium can be fluidly connected to the interior of the hollow sealing head 12 through the hydraulic test interface 5 to perform performance testing on the electronic water pump 4.

[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A protective structure for a water pump testing device, comprising: Rack (1); The base (3) is located inside the frame (1) and is used to place the electronic water pump (4). A hydraulic cylinder (7) is mounted on the top of the frame (1); A connecting plate (6) is driven to the output end of the hydraulic cylinder (7); characterized in that: the protective structure includes a fixing mechanism (10) and an adaptive mechanism (11). The fixing mechanism (10) is fixedly connected to the connecting plate (6). The fixing mechanism (10) includes a connecting slide rod (1005), a sliding plate (1001), an inclined sliding hole (1002), a connecting block (1003), and a clamping pad (1004). The connecting slide rod (1005) pushes the sliding plate (1001) to slide along the inclined sliding hole (1002). The sliding plate (1001) drives the connecting block (1003). The connecting block (1003) is fixedly connected to the clamping pad (1004). The adaptive mechanism (11) includes a sleeve rod (1101), a sealing head (12), and a disc spring (1103). The sleeve rod (1101) is slidably installed inside the fixing mechanism (10). The sealing head (12) is fixed to the lower end of the sleeve rod (1101). The disc spring (1103) is sleeved on the outside of the sleeve rod (1101) and elastically abuts against the sleeve rod (1101) and the fixing mechanism (10).

2. The protective structure for the water pump testing device according to claim 1, characterized in that, A guide rod (8) is fixedly connected to the bottom of the connecting plate (6), and a guide seat (9) is fixed inside the frame (1). The guide rod (8) and the guide seat (9) are slidably engaged.

3. The protective structure for the water pump testing device according to claim 1, characterized in that, The sealing head (12) is fixed to the lower end of the sleeve (1101) by a threaded rod (1104), and the threaded rod (1104) is threaded to the inner wall of the sleeve (1101).

4. The protective structure for the water pump testing device according to claim 3, characterized in that, A pressure rod (13) is also fixedly installed at the lower end of the threaded rod (1104), and the pressure rod (13) is located on the side of the sealing head (12).

5. The protective structure for the water pump testing device according to claim 3, characterized in that, The adaptive mechanism (11) further includes a locking nut (1105) which is screwed onto the threaded rod (1104).

6. The protective structure for the water pump testing device according to claim 1, characterized in that, The adaptive mechanism (11) further includes a fixing ring (1102), which is fixed to the outer wall of the sleeve (1101), and the disc spring (1103) elastically abuts against the inner wall of the fixing ring (1102) and the fixing mechanism (10).

7. The protective structure for the water pump testing device according to claim 1, characterized in that, The sealing head (12) is a hollow structure, and the protective structure is provided with a hydraulic test interface (5), which is fluidly connected to the interior of the sealing head (12).

8. The protective structure for the water pump testing device according to claim 1, characterized in that, A controller (2) is mounted on the outside of the frame (1), and the controller (2) is electrically connected to the hydraulic cylinder (7).

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