Testing device for stroke force of electromagnetic valve
By designing a solenoid valve stroke force testing device with a buffer spring and a floating buffer mechanism, the problems of cumbersome installation and uneven clamping in the existing technology have been solved, realizing fast and accurate solenoid valve testing, and improving production efficiency and product safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KEODA ELECTROMAGNETIC TECHNOLOGY CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-05-19
AI Technical Summary
Existing solenoid valve stroke force testing devices are cumbersome to install, difficult to adapt to the fast pace of production lines, and rigid clamping can easily lead to uneven distribution of clamping force, affecting test accuracy and potentially damaging products.
A testing device comprising a base plate, a solenoid valve mounting component, a clamping assembly, and a pressing assembly was designed. It employs a buffer spring and a floating buffer mechanism to achieve rapid installation and automatic tolerance compensation, avoiding problems of insufficient or excessive clamping.
This enables rapid installation and testing of solenoid valves, improves testing efficiency, ensures the accuracy of test data, and reduces the risk of equipment damage and product damage.
Smart Images
Figure CN224262799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solenoid valve testing, and more specifically, to a device for testing the stroke force of a solenoid valve. Background Technology
[0002] The description in this section provides only background information related to the disclosure of this utility model and does not constitute prior art.
[0003] As a crucial actuator in industrial automation control systems, the reliability of solenoid valves directly impacts the stable operation of the entire system. Among the key performance parameters of solenoid valves, stroke force reflects the mechanical characteristics experienced by the valve core during movement, directly affecting the valve's opening and closing response time, sealing performance, and service life. Therefore, rapid and accurate testing of the stroke force of solenoid valves is essential during manufacturing and quality inspection.
[0004] Currently, most existing testing devices for measuring the stroke force of solenoid valves employ rigid clamping structures. These devices are cumbersome and time-consuming to install, require highly skilled operators, and are ill-suited to the fast-paced requirements of production lines. Furthermore, due to manufacturing tolerances and assembly errors inherent in solenoid valves, rigid clamping can lead to uneven force distribution, resulting in problems such as insufficient clamping causing specimen loosening and inaccurate test data, or excessive clamping causing valve body deformation, valve core jamming, or even product damage. This uncertainty in clamping not only reduces the accuracy of test results but can also damage the solenoid valve due to improper clamping, increasing production costs. Therefore, there is an urgent need to develop a testing device that enables rapid installation and automatic tolerance compensation.
[0005] It should be noted that the above introduction to the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of this utility model and facilitating understanding by those skilled in the art. It should not be assumed that these technical solutions are known to those skilled in the art simply because they have been described in the background section of this utility model. Summary of the Invention
[0006] The technical problem to be solved by this utility model is to provide a testing device for the stroke force of a solenoid valve.
[0007] To address the aforementioned technical problems, this utility model provides a testing device for the stroke force of a solenoid valve, comprising a base plate, a solenoid valve mounting component disposed on the base plate, a clamping assembly disposed on the base plate, and a pressing assembly. The pressing assembly includes two side walls disposed on the left and right sides, a pressure plate mounted on the side walls, and a lower plate mounted below the side walls. A pressing head is mounted on the lower surface of the pressure plate. The solenoid valve mounting component is used to install a solenoid valve, and the pressing head is used to press down on the upper side of the solenoid valve. The pressing assembly can be clamped and fixed by the clamping assembly.
[0008] Preferably, the side wall has a mounting hole along the vertical direction, a buffer spring is installed in the mounting hole, a guide pin passes through the middle of the buffer spring, the lower end of the guide pin is provided with a pin head, the upper end of the guide pin is fixed to the pressure plate, the upper end of the buffer spring abuts against the inner top surface of the mounting hole, and the pin head supports the lower end of the spring. When the pressure plate floats up and down relative to the side wall, the buffer spring can play a buffering role.
[0009] Preferably, both sidewalls are provided with two mounting holes arranged in a front-to-back pattern.
[0010] Preferably, a handle is installed on the outer side of both sidewalls.
[0011] Preferably, the pressure plate has a through hole for the test head to pass through, and a first notch is provided on the front side of the through hole, extending to the front edge of the pressure plate. The lower pressure head has an annular structure with the test head passing through the middle. A second notch is provided on the front side of the lower pressure head in the vertical direction. The first notch and the second notch together constitute an observation port for observing the test head.
[0012] Preferably, the base plate is provided with two clamping assemblies, which clamp and fix the pressing assembly from the left and right sides. The clamping assembly includes a fixing block mounted on the base plate and an L-shaped buckle rotatably mounted on the fixing block via a rotating shaft. The L-shaped buckle includes a vertical part and a horizontal part. The upper end of the vertical part is a locking head with a second guide slope. The lower surface of the horizontal part is provided with a first guide hole. The base plate is provided with a second guide hole. The clamping assembly also includes a guide shaft. The upper end of the guide shaft is inserted into the first guide hole, and the lower end of the guide shaft is inserted into the second guide hole. An upper spring, or / and a lower spring, is installed between the upper end of the guide shaft and the top inner wall of the first guide hole, and between the lower end of the guide shaft and the lower inner wall of the second guide hole. When the buckle rotates outward around the rotating shaft, the upper spring and / or the lower spring apply a restoring force to the horizontal part of the buckle to drive the buckle back to its initial position.
[0013] Preferably, the clamping assembly further includes a fixing seat mounted on the base plate, and a top pin is mounted on the fixing seat, one end of which abuts against the side surface of the vertical part of the buckle facing away from the guide shaft.
[0014] Preferably, the lower plate is provided with locking blocks on the left and right sides. Each locking block has a first guide slope. When the pressing component presses down, the first guide slope and the second guide slope press against each other, causing the latches on both sides to spring outward against the elastic force of the upper spring and / or the lower spring. When the locking block moves to below the locking head, the latches return inward under the rebound force of the upper spring and / or the lower spring, and lock onto the upper surface of the locking block.
[0015] Preferably, a guide rod is also installed on the base plate. The guide rod is arranged vertically and passes through the lower plate, and the lower plate can slide up and down along the guide rod.
[0016] Preferably, the lower surface of the pressing head is provided with a buffer portion.
[0017] Based on the above technical solution, the beneficial effects of this utility model are as follows:
[0018] This utility model discloses a testing device for the stroke force of a solenoid valve, enabling rapid installation and testing. During operation, simply place the solenoid valve on the solenoid valve mounting bracket, then press down the lowering assembly, causing the lowering head to press down onto the upper side of the solenoid valve. After installation, the clamping assembly automatically locks the lowering assembly. This simple and quick installation process improves the testing efficiency of solenoid valves. Furthermore, the testing device is equipped with a floating buffer mechanism. The buffer spring structure within the side wall allows the pressure plate to adaptively float after contacting the solenoid valve core, automatically compensating for product tolerances and solving the problems of "insufficient clamping" or "over-clamping" that exist in rigid clamping. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the solenoid valve stroke force testing device of this utility model.
[0020] Figure 2 This is a schematic diagram of the structure of the solenoid valve stroke force testing device of this utility model.
[0021] Figure 3 This is a structural schematic diagram of the pressing component of this utility model.
[0022] Figure 4 yes Figure 3 A cross-sectional view along the AA direction.
[0023] Figure 5 This is a partial structural diagram of the base assembly of this utility model.
[0024] Figure 6 This is a partial structural diagram of the base assembly of this utility model.
[0025] The components are as follows: 1. Pressure plate; 11. First notch; 2. Side wall; 3. Lower plate; 4. Handle; 5. Lower pressure head; 6. Guide pin; 7. Buffer spring; 21. Buckle; 22. Clamp head; 23. Rotating shaft; 24. Guide shaft; 25. Upper spring; 26. Lower spring; 27. Fixed seat; 28. Top pin; 31. Clamping block; 51. Second notch; 61. Pin head; 10. Lower pressure assembly; 20. Clamping assembly; 30. Base plate; 40. Solenoid valve mounting part; 8. Guide rod; 50. Test head; 29. Fixed block. Detailed Implementation
[0026] 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.
[0027] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0028] like Figure 1-3 As shown, this utility model provides a testing device for the stroke force of a solenoid valve, including a base plate 30, a solenoid valve mounting component 40 disposed on the base plate 30, a clamping assembly 20 disposed on the base plate 30, and a pressing assembly 10. The pressing assembly 10 includes two side walls 2 disposed on the left and right, a pressure plate 1 mounted on the side walls 2, and a lower plate 3 mounted below the side walls 2. A pressing head 5 is mounted on the lower surface of the pressure plate 1. The solenoid valve mounting component 40 is used to install the solenoid valve, and the pressing head 5 is used to press down on the upper side of the solenoid valve. The pressing assembly 10 can be clamped and fixed by the clamping assembly 20. Handles 4 are mounted on the outer sides of both side walls 2. A guide rod 8 is also mounted on the base plate 30. The guide rod 8 is arranged vertically and passes through the lower plate 3. The lower plate 3 can slide up and down along the guide rod 8. A buffer part is provided on the lower surface of the pressing head 5. The buffer part can be multiple buffer pads made of silicone or rubber material. This testing device enables rapid installation and testing. Simply place the solenoid valve on the solenoid valve mounting bracket 40, the operator holds the handle 4 on the side wall 2, and then press down the pressing component 10, causing the pressing head 5 to press down onto the upper side of the solenoid valve. After installation, the clamping component 20 automatically locks the pressing component 10. This installation process is simple and quick, improving the testing efficiency of solenoid valves.
[0029] like Figure 4As shown, the side wall 2 has mounting holes along its vertical direction. A buffer spring 7 is installed in the mounting holes, and a guide pin 6 passes through the middle of the buffer spring 7. The lower end of the guide pin 6 has a pin head 61, and the upper end of the guide pin 6 is fixed to the pressure plate 1. The upper end of the buffer spring 7 abuts against the inner top surface of the mounting hole, and the pin head 61 is supported by the lower end of the spring. When the pressure plate 1 floats up and down relative to the side wall 2, the buffer spring 7 can provide a buffering effect. The buffer spring 7 can be inserted from the lower side of the mounting hole. The guide pin 6 passes through the spring from bottom to top, and the upper end of the guide pin 6 passes through the inner top wall of the mounting hole and is fixed to the pressure plate 1. The pin head 61 of the guide pin 6 is blocked by the lower end of the spring. In a preferred embodiment, both side walls 2 are provided with two mounting holes arranged in a front-to-back pattern. The testing device is also equipped with a floating buffer mechanism. The buffer spring 7 structure in the side wall 2 enables the pressure plate 1 to float adaptively after contacting the solenoid valve core, automatically compensating for product tolerances and solving the problems of "not clamping tightly" or "over-clamping" that exist in rigid clamping.
[0030] like Figure 1-3 As shown, the pressure plate 1 has a through hole for the test head 50 to pass through. A first notch 11 is provided on the front side of the through hole, extending to the front edge of the pressure plate 1. The lower pressure head 5 has an annular structure with the test head 50 passing through the center. A second notch 51 is provided vertically on the front side of the lower pressure head 5. The first notch 11 and the second notch 51 together form an observation port for observing the test head 50. This observation port design achieves "visualization" of the testing process, allowing the operator to directly observe the alignment status of the test head 50 with the solenoid valve, reducing equipment damage and product scrap caused by misoperation.
[0031] like Figure 5 and 6As shown, the base plate 30 is provided with two clamping assemblies 20. The clamping assemblies 20 clamp and fix the pressing assembly 10 from the left and right sides. The clamping assembly 20 includes a fixing block 29 mounted on the base plate 30 and an L-shaped buckle 21 rotatably mounted on the fixing block 29 via a rotating shaft 23. The L-shaped buckle 21 includes a vertical part and a horizontal part. The upper end of the vertical part is a locking head 22, which has a second guide slope. The lower surface of the horizontal part is provided with a first guide hole, and the base plate 30 is provided with a second guide hole. The clamping assembly 20 further includes a guide shaft 24, the upper end of which is inserted into the first guide hole, and the lower end of which is inserted into the second guide hole. An upper spring 25 and / or a lower spring 26 are installed between the upper end of the guide shaft 24 and the upper inner wall of the first guide hole, and between the lower end of the guide shaft 24 and the lower inner wall of the second guide hole. When the latch 21 rotates outward around the pivot 23, the upper spring 25 and / or the lower spring 26 apply a restoring force to the lateral portion of the latch 21, driving the latch 21 back to its initial position. The clamping assembly 20 also includes a fixing seat 27 mounted on the base plate 30, and a top pin 28 is mounted on the fixing seat 27. One end of the top pin 28 abuts against the side surface of the vertical portion of the latch 21 facing away from the guide shaft 24. The lower plate 3 is provided with locking blocks 31 on the left and right sides. Each locking block 31 has a first guide slope. When the pressing component 10 presses down, the first guide slope and the second guide slope press against each other, causing the latches 21 on both sides to overcome the elastic force of the upper spring 25 and / or the lower spring 26 and spring outward respectively. When the locking block 31 moves to below the locking head 22, the latches 21 return to their original position under the rebound force of the upper spring 25 and / or the lower spring 26 and lock onto the upper surface of the locking block 31.
[0032] The working principle of the solenoid valve stroke force testing device in this application is as follows.
[0033] The solenoid valve under test is installed on the solenoid valve mounting part 40. The operator holds the handle 4 and presses down the entire pressing assembly 10. The first guide slope of the two side locking blocks 31 contacts and presses against the second guide slope on the L-shaped buckle 21 of the clamping assembly 20, forcing the two side locking blocks 21 to spring outward against the spring force. When the pressing assembly 10 continues to move down and the locking blocks 31 are lowered below the locking head 22, the two side locking blocks 21 quickly return to their original position under the action of the spring restoring force, so that the locking head 22 is firmly locked onto the upper surface of the locking blocks 31, thereby automatically completing the locking. During this process, the pressing head 5 presses down on the solenoid valve, and the pressure plate 1 completes adaptive floating during the pressing process.
[0034] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.
Claims
1. A device for testing the stroke force of a solenoid valve, characterized in that, The device includes a base plate, a solenoid valve mounting component disposed on the base plate, a clamping assembly disposed on the base plate, and a pressing assembly. The pressing assembly includes two side walls disposed on the left and right sides, a pressure plate mounted on the side walls, and a lower plate mounted below the side walls. A pressing head is mounted on the lower surface of the pressure plate. The solenoid valve mounting component is used to install a solenoid valve. The pressing head is used to press down on the upper side of the solenoid valve. The pressing assembly can be clamped and fixed by the clamping assembly.
2. The testing apparatus according to claim 1, characterized in that, The side wall has mounting holes along its vertical direction. A buffer spring is installed in the mounting holes. A guide pin passes through the middle of the buffer spring. The lower end of the guide pin has a pin head. The upper end of the guide pin is fixed to the pressure plate. The upper end of the buffer spring abuts against the inner top surface of the mounting hole. The pin head supports the lower end of the spring. When the pressure plate floats up and down relative to the side wall, the buffer spring can play a buffering role.
3. The testing apparatus according to claim 2, characterized in that, Both of the aforementioned sidewalls are provided with two mounting holes arranged in a front-to-back configuration.
4. The testing apparatus according to claim 2, characterized in that, Handles are installed on the outer sides of both of the aforementioned sidewalls.
5. The testing apparatus according to claim 2, characterized in that, The pressure plate has a through hole for the test head to pass through. A first notch is provided on the front side of the through hole, which extends to the front edge of the pressure plate. The lower pressure head has a ring structure with the test head passing through the middle. A second notch is provided on the front side of the lower pressure head in the vertical direction. The first notch and the second notch together form an observation port for observing the test head.
6. The testing apparatus according to claim 1, characterized in that, The base plate is provided with two clamping assemblies, which clamp and fix the pressing assembly from the left and right sides. The clamping assembly includes a fixing block mounted on the base plate and an L-shaped buckle rotatably mounted on the fixing block via a pivot. The L-shaped buckle includes a vertical part and a horizontal part, the upper end of the vertical part being a locking head, and the locking head having a second guide slope. The lower surface of the transverse portion is provided with a first guide hole, the base plate is provided with a second guide hole, and the clamping assembly further includes a guide shaft, the upper end of which is inserted into the first guide hole, and the lower end of which is inserted into the second guide hole. An upper spring, or / and, is installed between the upper end of the guide shaft and the top inner wall of the first guide hole. A lower spring is installed between the lower end of the guide shaft and the lower inner wall of the second guide hole. When the latch rotates outward about the axial direction, the upper spring and / or lower spring apply a restoring force to the lateral portion of the latch, driving the latch back to its initial position.
7. The testing apparatus according to claim 6, characterized in that, The clamping assembly further includes a fixing seat mounted on the base plate, and a top pin is mounted on the fixing seat. One end of the top pin abuts against the side surface of the vertical part of the buckle facing away from the guide shaft.
8. The testing apparatus according to claim 6, characterized in that, The lower plate is provided with locking blocks on the left and right sides. Each locking block has a first guide slope. When the pressing component presses down, the first guide slope and the second guide slope press against each other, causing the latches on both sides to spring outward against the elastic force of the upper spring and / or the lower spring. When the locking block moves to below the locking head, the latches return inward under the rebound force of the upper spring and / or the lower spring, and lock onto the upper surface of the locking block.
9. The testing apparatus according to claim 1, characterized in that, The base plate is also equipped with a guide rod, which is arranged vertically and passes through the lower plate. The lower plate can slide up and down along the guide rod.
10. The testing apparatus according to claim 1, characterized in that, The lower surface of the pressure head is provided with a buffer section.