Solenoid valve service life test bench with protection mechanism
By designing a sealing and safety protection mechanism on the solenoid valve life test bench, leakage and safety issues during the testing process were resolved, thereby improving the accuracy and safety of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TESTECH TECH
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-05
AI Technical Summary
Existing solenoid valve life test benches suffer from leakage and low safety during testing, affecting the accuracy of test results and the safety of test personnel.
A sealing mechanism and a safety protection mechanism were designed. The sealing mechanism seals both sides of the solenoid valve using an electric telescopic rod and a sealing ring. The safety protection mechanism uses a slide groove and a motor-driven bidirectional threaded rod to drive a protective cover to cover the solenoid valve, forming a closed space.
It effectively prevents leakage during the testing process, improves the accuracy of test results, and prevents fragments from scattering when the solenoid valve breaks, thus enhancing test safety.
Smart Images

Figure CN224203374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of test bench technology, specifically to a solenoid valve life test bench with a protective mechanism. Background Technology
[0002] Solenoid valves are electromagnetically controlled industrial devices, fundamental components of automation systems used to control fluids. They are actuators, not limited to hydraulic or pneumatic systems, used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, ensuring both precision and flexibility. There are many types of solenoid valves, each playing a different role in the control system. The most common types are check valves, safety valves, directional control valves, and speed regulating valves.
[0003] Chinese patent provides a flexible test bench for electromagnetic valves, publication number CN219957745U, which includes a clamping support frame, a horizontal transfer assembly, an oil circuit block assembly, and a simulated clutch that are slidably connected to the test bench surface. The clamping support frame is connected to a clamping mechanism via a connecting rod. When the horizontal transfer assembly drives the clamping support frame to move toward the oil circuit block assembly, the clamping mechanism can press the electromagnetic valve body mounted thereon onto the oil circuit block assembly.
[0004] The aforementioned test bench automatically detects the performance of solenoid valves, improving the efficiency of solenoid valve testing and demonstrating strong practicality. However, the lack of sealing on both sides of the solenoid valve during testing leads to leakage, affecting the accuracy of the test results. Furthermore, the lack of protection during testing can cause the solenoid valve body to rupture, with fragments flying onto the test personnel, thus posing a safety risk. Utility Model Content
[0005] The purpose of this invention is to provide a solenoid valve life test bench with a protective mechanism to solve the problem that existing test benches may leak during testing, thus affecting the accuracy of test results and causing low safety.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a solenoid valve life test bench with a protective mechanism, comprising a test bench body, wherein a sealing mechanism and a safety protection mechanism are provided on the test bench body;
[0007] The sealing mechanism includes two upright plates fixedly connected to the top of the test bench body on both sides. An electric telescopic rod is fixedly inserted through each of the two upright plates. A fixed plate is fixedly connected to the telescopic end of each of the two electric telescopic rods. A sealing ring is fixedly connected to one end of each of the two fixed plates that are close to each other. A positioning ring is fixedly connected to one end of each of the two sealing rings that are close to each other. Guide rods are fixedly connected to both sides of the electric telescopic rods at the ends of the two fixed plates that are far apart from each other and penetrate through the upright plates. A water inlet pipe and a water outlet pipe are fixedly connected to the bottom ends of the two sealing rings respectively and penetrate through the test bench body.
[0008] Preferably, the safety protection mechanism includes a slide groove formed at the top of the test bench body, and a bidirectional threaded rod is rotatably connected to one side of the inner wall of the slide groove.
[0009] Preferably, a motor is fixedly connected to one end of the test bench body, and the motor drive end is fixedly connected to a bidirectional threaded rod.
[0010] Preferably, both ends of the groove are slidably connected to sliders, and both sliders are threadedly connected to a bidirectional threaded rod.
[0011] Preferably, a protective cover is fixedly connected to the top of each of the two sliders, and an arc-shaped notch is opened at one end of each of the two protective covers, and the two sets of arc-shaped notches form a circle.
[0012] Preferably, a placement seat is fixedly connected to the top center of the test bench body, and a solenoid valve body is provided on the placement seat.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1) The solenoid valve life test bench with protective mechanism can seal both sides of the solenoid valve body before testing by setting the sealing mechanism, thereby preventing water leakage during the test and improving the accuracy of the test results.
[0015] 2) The solenoid valve life test bench with protective mechanism can form a closed space outside the solenoid valve body during testing by setting a safety protection structure, thereby preventing the solenoid valve body from breaking and fragments from splashing onto the test personnel, thus improving safety. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a solenoid valve life test bench with a protective mechanism according to the present invention.
[0017] Figure 2 This is a bottom perspective view of a solenoid valve life test bench with a protective mechanism according to the present invention.
[0018] Figure 3 This is a partial view of the protective cover of a solenoid valve life test bench with a protective mechanism according to the present invention.
[0019] Figure 4 This is a diagram illustrating the sealing mechanism of a solenoid valve life test bench with a protective mechanism according to this utility model.
[0020] Figure 5 This is a diagram illustrating the safety protection mechanism of a solenoid valve life test bench with a protective structure according to this utility model.
[0021] In the diagram: 1. Test bench body; 2. Sealing mechanism; 201. Vertical plate; 202. Electric telescopic rod; 203. Fixed plate; 204. Sealing ring; 205. Positioning ring; 206. Guide rod; 207. Water inlet pipe; 208. Water outlet pipe; 3. Safety protection mechanism; 301. Slide groove; 302. Bidirectional threaded rod; 303. Motor; 304. Slider; 305. Protective cover; 4. Placement seat; 5. Solenoid valve body. Detailed Implementation
[0022] 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.
[0023] Example 1
[0024] Combination Figures 1-5 A solenoid valve life test bench with a protective mechanism includes a test bench body 1, a sealing mechanism 2 and a safety protection mechanism 3 on the test bench body 1, a placement seat 4 fixedly connected to the top center of the test bench body 1, and a solenoid valve body 5 on the placement seat 4.
[0025] See Figure 4 Furthermore, the sealing mechanism 2 includes two upright plates 201 fixedly connected to the top sides of the test bench body 1. Electric telescopic rods 202 are fixedly connected through both upright plates 201. Fixed plates 203 are fixedly connected to the telescopic ends of both electric telescopic rods 202. Sealing rings 204 are fixedly connected to the ends of both fixed plates 203 that are close to each other. Positioning rings 205 are fixedly connected to the ends of both sealing rings 204 that are close to each other. Guide rods 206 are fixedly connected to the two sides of the electric telescopic rods 202 at the ends of the two fixed plates 203 that are far apart from each other and pass through the upright plates 201. Water inlet pipes 207 and water outlet pipes 208 are fixedly connected to the bottom ends of the two sealing rings 204 respectively and pass through the test bench body 1.
[0026] Specifically, the electric telescopic rod 202 is fixed to the top of the test bench body 1 by the upright plate 201, and the fixed plate 203 is pushed by the electric telescopic rod 202 to move closer to the solenoid valve body 5. The sealing ring 204 covers both sides of the solenoid valve body 5 to prevent leakage during the test. The positioning ring 205 plays a positioning role, which facilitates clamping and fixing both sides of the solenoid valve body 5 to prevent water leakage during the test and improve the accuracy of the test results. Water is injected into one side of the solenoid valve body 5 through the water inlet pipe 207. During the test, the water output of the water outlet pipe 208 can be observed to complete the test. The water inlet pipe 207 and the water outlet pipe 208 are flexible hoses.
[0027] Example 2
[0028] See Figure 3 and Figure 5 Furthermore, based on Embodiment 1, the safety protection mechanism 3 includes a slide groove 301 opened at the top of the test bench body 1. A bidirectional threaded rod 302 is rotatably connected to one side of the inner wall of the slide groove 301. A motor 303 is fixedly connected to one end of the test bench body 1. The drive end of the motor 303 is fixedly connected to the bidirectional threaded rod 302. Sliding blocks 304 are slidably connected to both ends of the slide groove 301. Both sliding blocks 304 are threadedly connected to the bidirectional threaded rod 302. Protective covers 305 are fixedly connected to the top of both sliding blocks 304. Both protective covers 305 have arc-shaped notches at one end close to each other. The two sets of arc-shaped notches form a circle.
[0029] Specifically, the slide groove 301 limits the bidirectional threaded rod 302, while the motor 303 rotates the bidirectional threaded rod 302, which causes the slider 304 to move in a direction closer to each other, thereby moving the protective cover 305 and making the arc-shaped notch on the protective cover 305 match the outer wall of the sealing ring, thus playing a protective role and preventing fragments from being splashed onto the test personnel if the solenoid valve body 5 breaks during the test, thereby improving safety.
[0030] In actual operation, the solenoid valve body 5 is first placed on the placement seat 4. Then, the electric telescopic rod 202 is activated by the synchronous controller to push the fixed plate 203 to move. During the movement, the sealing ring 204 and the positioning ring 205 are moved along with it, and the positioning ring 205 is inserted into the inner walls on both sides of the solenoid valve body 5. The sealing effect is improved by the sealing ring 204. Therefore, water leakage can be prevented during the test, thereby improving the accuracy of the test results.
[0031] Then, the motor 303 is started to rotate the bidirectional threaded rod 302. The thread effect on the bidirectional threaded rod 302 can make the slider 304 move towards one side and move the protective cover 305. The notch on the protective cover 305 covers the sealing ring 204 and forms a closed space, thereby preventing the solenoid valve body 5 from breaking during the test and the fragments from splashing onto the test personnel, thus improving safety.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A solenoid valve life test bench with a protective mechanism, comprising a test bench body (1), characterized in that: The test bench body (1) is equipped with a sealing mechanism (2) and a safety protection mechanism (3); The sealing mechanism (2) includes two upright plates (201) fixedly connected to the top sides of the test bench body (1). An electric telescopic rod (202) is fixedly inserted through each of the two upright plates (201). A fixed plate (203) is fixedly connected to the telescopic end of each of the two electric telescopic rods (202). A sealing ring (204) is fixedly connected to one end of each of the two fixed plates (203) that are close to each other. A positioning ring (205) is fixedly connected to one end of each of the two sealing rings (204) that are close to each other. A guide rod (206) is fixedly connected to both sides of the electric telescopic rod (202) at the opposite end of each of the two fixed plates (203) and passes through the upright plate (201). A water inlet pipe (207) and a water outlet pipe (208) are fixedly connected to the bottom ends of the two sealing rings (204) and pass through the test bench body (1).
2. The electromagnetic valve life test bench with a protective mechanism according to claim 1, characterized in that: The safety protection mechanism (3) includes a slide groove (301) opened at the top of the test bench body (1), and a bidirectional threaded rod (302) is rotatably connected to one side of the inner wall of the slide groove (301).
3. The electromagnetic valve life test bench with a protective mechanism according to claim 2, characterized in that: A motor (303) is fixedly connected to one end of the test bench body (1), and the drive end of the motor (303) is fixedly connected to the bidirectional threaded rod (302).
4. The electromagnetic valve life test bench with a protective mechanism according to claim 3, characterized in that: Both ends of the groove (301) are slidably connected to sliders (304), and both sliders (304) are threadedly connected to the bidirectional threaded rod (302).
5. A solenoid valve life test bench with a protective mechanism according to claim 4, characterized in that: The top ends of the two sliders (304) are fixedly connected to protective covers (305), and the two protective covers (305) are provided with arc-shaped notches at one end close to each other, and the two sets of arc-shaped notches form a circle.
6. The electromagnetic valve life test bench with a protective mechanism according to claim 1, characterized in that: The test bench body (1) is fixedly connected to a placement seat (4) at the top center, and a solenoid valve body (5) is provided on the placement seat (4).
Citation Information
Patent Citations
Solenoid valve flexible test board
CN219957745U