Switch fatigue test frame

Abstract

The utility model discloses a switch fatigue test frame, which comprises a main support frame, and a detection circuit is arranged in the main support frame. A working box is arranged at the top of the main supporting frame, a rotating rod is rotationally connected to the bottom face of the working box, pressing frames are arranged on the two sides of the outer side of the rotating rod, and a swing assembly for assisting the rotating rod in reciprocating swing is arranged in the working box; a single-chip microcomputer and a battery are arranged in the main supporting frame. A supporting plate is detachably connected to the surface of the main supporting frame, a containing groove is formed in the supporting plate, and an electric connecting wire is connected to the supporting plate. The beneficial effects of the utility model are that the supporting plate can be installed and detached, thereby facilitating the replacement of the supporting plate, enabling the device to adapt to the detection requirements of different types of switches, and improving the accuracy and efficiency of the quality detection of the switches; and the swinging assembly works to drive the rotating rod to swing, so that the pressing frame performs a fatigue test on the switch, the operation is simpler, and the long-time use condition is simulated by pressing the switch.

Description

Technical Field

[0001] This utility model relates to the field of switch testing, specifically to a switch fatigue testing fixture. Background Technology

[0002] Switch fatigue testing is an important experiment used to evaluate whether switch products can maintain stable performance during long-term use. Switch on / off fatigue testing assesses whether a switch can maintain normal function and performance after prolonged switching operations. By repeatedly simulating the opening and closing operations of the switch, it tests whether problems such as poor contact, jamming, or wear will occur under high-frequency operation. This type of test typically involves multiple switching operations until the switch fails or reaches its predetermined service life standard, aiming to ensure that the switch can operate reliably in practical applications and meets durability, lifespan, and safety requirements.

[0003] Traditional switch fatigue testing equipment is typically designed with a fixed support system, designed to test a specific model or specification of switch. This makes the equipment inflexible and unable to adapt to different types or specifications of switches. If different types of switches need to be tested, the equipment needs to be readjusted or replaced, and may even require the purchase of multiple different devices, increasing operating costs and complexity. Utility Model Content

[0004] The purpose of this utility model is to provide a switch fatigue testing fixture to solve the above problems, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a switch fatigue testing frame, including a main support frame, a detection circuit is provided inside the main support frame; a working box is provided on the top of the main support frame, a rotating rod corresponding to the main support frame is rotatably connected to the bottom surface of the working box, pressing frames are provided on both sides of the outer side of the rotating rod, and a swing assembly is provided inside the working box to assist the rotating rod in reciprocating swing.

[0007] The main support frame houses a microcontroller and a battery. The detection circuit, the swing assembly, and the battery are all electrically connected to the microcontroller. A support plate corresponding to the pressing frame is detachably connected to the surface of the main support frame. The support plate has a receiving groove for limiting the switch to be detected. An electrical connection wire electrically connected to the detection circuit is connected to the support plate. An electrical connection block is provided in the receiving groove, and the electrical connection block is electrically connected to the electrical connection wire.

[0008] To further explain, the main support frame is provided with a slot, and the back side of the support plate is provided with a plug, and the slot and the plug are inserted into each other.

[0009] To further explain, the inner side of the receiving groove is provided with an adhesive strip to assist in fixing the switch.

[0010] To further explain, the swing assembly includes a motor fixed inside the working box, a cam connected to the output end of the motor, a high end of the rotating rod extending into the working box, and a push rod connected to the outside of the rotating rod. A torsion spring is provided inside the working box to push the push rod close to the cam.

[0011] Further explanation is that it also includes a rod frame, which is installed on the outside of the rotating rod, and the pressing frame is installed on the movable end of the rod frame.

[0012] To further explain, the outer side of the rotating rod is provided with a limiting groove corresponding to the receiving groove, the rod frame is inserted into the limiting groove, and the pressing frame is provided with bolts for fixing the rotating rod.

[0013] To further explain, the limiting groove has a trapezoidal cross-section, and the rod is inserted into the limiting groove.

[0014] To further explain, the rod frame is provided with a guide groove, the pressing frame includes a bolt that slides with the guide groove, the bolt is provided with a nut for fixing it, the inner end of the bolt extends toward the support plate, and a rubber block is connected to it through a threaded sleeve.

[0015] To further explain, the main support frame is provided with a buffer rubber seat on its back side.

[0016] The beneficial effects are:

[0017] In this invention, the support plate can be installed and disassembled, making it easy to replace. This allows the device to adapt to the testing requirements of different types of switches, improving the accuracy and efficiency of switch quality testing. Furthermore, the swinging component drives the rotating rod to swing, enabling the pressing frame to perform fatigue testing on the switch. This simplifies the operation and simulates long-term use by pressing the switch. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the front view of this utility model;

[0020] Figure 2This is a schematic diagram of the pressing frame in this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the working box in this utility model.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Main support frame; 101. Slot; 2. Working box; 3. Swing assembly; 301. Motor; 302. Cam; 303. Push rod; 304. Torsion spring; 4. Rotating rod; 401. Limiting groove; 5. Pressing frame; 501. Threaded sleeve; 502. Nut; 503. Bolt; 504. Rubber block; 6. Support plate; 601. Receiving groove; 602. Adhesive strip; 603. Electrical connection block; 604. Electrical wiring; 7. Detection circuit; 8. Microcontroller; 9. Rod frame; 901. Guide groove; 10. Buffer rubber seat. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] First embodiment:

[0026] See Figures 1-3 As shown, this utility model provides a switch fatigue testing frame, including a main support frame 1, a detection circuit 7 inside the main support frame 1; a working box 2 is provided on the top of the main support frame 1, a rotating rod 4 corresponding to the main support frame 1 is rotatably connected to the bottom surface of the working box 2, a pressing frame 5 is provided on both sides of the outer side of the rotating rod 4, and a swing assembly 3 for reciprocating swing of the auxiliary rotating rod 4 is provided inside the working box 2.

[0027] The swing assembly 3 can drive the rotating rod 4 to swing, and during the swing of the rotating rod 4, the pressing frames 5 on both sides can be moved to swing back and forth alternately.

[0028] The main support frame 1 houses a microcontroller 8 and a battery. The detection circuit 7, the swing assembly 3, and the battery are all electrically connected to the microcontroller 8. In the device, the microcontroller 8 can electrically control the detection circuit 7 and the swing assembly 3, and can perform counting operations using the counting module on the microcontroller 8. Furthermore, the device is equipped with indicator lights to display the detection results. The indicator lights are electrically connected to the microcontroller 8, and the number of indicator lights corresponds to the number of receiving slots 601. The microcontroller model can be STM32, which is suitable for handling counting, load adjustment, and real-time control operations.

[0029] The main support frame 1 has a detachable support plate 6 corresponding to the pressing frame 5. The support plate 6 can be easily disassembled so that it can be replaced according to the specific switch. The support plate 6 is provided with a receiving groove 601 for limiting the switch to be tested. The support plate 6 is connected with an electrical connection 604 that is electrically connected to the detection circuit 7. An electrical connection block 603 is provided in the receiving groove 601. The electrical connection block 603 is electrically connected to the electrical connection 604. Each support plate 6 has multiple receiving grooves 601, which are arranged in an array, so that multiple switches can be tested and set through multiple receiving grooves 601.

[0030] When the device is in use, the switch is installed in the receiving slot 601, the support plate 6 is installed on the surface of the main support frame 1, the electrical connection 604 is electrically connected to the detection circuit 7, and the swing component 3 is controlled by the microcontroller 8 to swing the rotating rod 4. The pressing brackets 5 on both sides of the rotating rod 4 then press the switch in the receiving slot 601 to perform the opening and closing operation, thereby realizing the fatigue detection of the switch. The counting circuit in the microcontroller 8 is used for statistical operation. The device can be electrically connected to the terminal device to observe the detection results. The device is also equipped with a display screen, which is set on the main support frame 1 or the working box 2.

[0031] In a preferred embodiment, a buffer rubber seat 10 is provided on the back side of the main support frame 1. The buffer rubber seat 10 forms a support for the main support frame 1. When the main support frame 1 is in use, it can support the support plate 6 by being laid flat. The support effect of the main support frame 1 is good, and it can provide buffer support protection in the fatigue detection of the switch by the device.

[0032] The second embodiment differs from the first embodiment in that:

[0033] The main support frame 1 is provided with a slot 101, and the support plate 6 is provided with a plug on the back side. The slot 101 and the plug are engaged. The support plate 6 is fixed by engaging the slot 101 and the plug on the support plate 6. The slot 101 extends laterally to the side wall of the main support frame 1. The slot 101 has a dovetail-shaped cross section and is fitted with the receiving groove 601 with a clearance.

[0034] In addition, in the structure of the support plate 6, an adhesive strip 602 for fixing the auxiliary switch is provided on the inner side of the receiving groove 601, which can assist in limiting the position of the switch inside the receiving groove 601.

[0035] The third embodiment differs from the first embodiment in that:

[0036] The swing assembly 3 includes a motor 301 fixed inside the working box 2. The output end of the motor 301 is connected to a cam 302. The high end of the rotating rod 4 extends into the working box 2, and a push rod 303 is connected to the outside of the rotating rod 4. The working box 2 is equipped with a torsion spring 304 that pushes the push rod 303 close to the cam 302. After the motor 301 rotates, the motor 301 can drive the cam 302 to rotate. The rotating cam 302 can push the push rod 303 to rotate. The elasticity of the torsion spring 304 can make the push rod 303 close to the cam 302. When the hub point of the cam 302 gradually contacts the push rod 303, the rotating rod 4 rotates to the left. When the hub point of the cam 302 gradually contacts the push rod 303, the rotating rod 4 rotates to the right, thereby realizing the pressing operation of the switch in the receiving slot 601, thus realizing the fatigue test of the switch.

[0037] The fourth embodiment differs from the first embodiment in that:

[0038] It also includes a rod frame 9, which is installed on the outside of the rotating rod 4. The pressing frame 5 is installed on the movable end of the rod frame 9. Furthermore, the outside of the rotating rod 4 is provided with a limiting groove 401 corresponding to the receiving groove 601. The rod frame 9 is inserted into the limiting groove 401. The rod frame 9 is provided with a bolt 503 for fixing the rotating rod 4. By utilizing the cooperation between the cross section of the rod frame 9 and the limiting groove 401, the rod frame 9 can be limited. After tightening the fixing bolt 503, the rod frame 9 is fixed. After loosening the fixing bolt 503, the rod frame 9 can be disassembled or rotated to facilitate the installation of the support plate 6 or the switch. Furthermore, the cross sections of the rod frame 9 and the limiting groove 401 are trapezoidal, which can limit the rod frame 9.

[0039] In the specific structure of the pressing frame 5, the rod frame 9 is provided with a guide groove 901. The pressing frame 5 includes a bolt 503 that slides with the guide groove 901. The bolt 503 is provided with a nut 502 for fixing it. The inner end of the bolt 503 extends toward the support plate 6 and is connected to a rubber block 504 through a threaded sleeve 501. In the structure of the pressing frame 5, loosening the nut 502 allows the bolt 503 to slide inside the guide groove 901, thereby adjusting the rubber block 504 to correspond to the front and rear positions of the switch. After adjustment, tightening the nut 502 presses the guide groove 901 through the end cap of the bolt 503 and the nut 502, thus fixing the bolt 503. Rotating the rubber block 504 allows the front and rear positions of the rubber block 504 to be adjusted by the threaded connection between the threaded sleeve 501 and the bolt 503, thereby adjusting the rubber block 504 to a position that is convenient for pressing the switch, greatly improving the ease of use of the device.

[0040] 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 switch fatigue test rig comprising a main support frame (1), characterised in that, The main support frame (1) is equipped with a detection circuit (7); the top of the main support frame (1) is equipped with a work box (2), the bottom surface of the work box (2) is rotatably connected with a rotating rod (4) corresponding to the main support frame (1), the outer sides of the rotating rod (4) are equipped with pressing frames (5), and the work box (2) is equipped with a swing assembly (3) to assist the rotating rod (4) in reciprocating swing; The main support frame (1) is equipped with a microcontroller (8) and a battery. The detection circuit (7), the swing assembly (3) and the battery are all electrically connected to the microcontroller (8). The surface of the main support frame (1) is detachably connected to a support plate (6) corresponding to the pressing frame (5). The support plate (6) is provided with a receiving groove (601) for limiting the switch to be detected. The support plate (6) is connected with an electrical connection line (604) electrically connected to the detection circuit (7). An electrical connection block (603) is provided in the receiving groove (601). The electrical connection block (603) is electrically connected to the electrical connection line (604).

2. A switch fatigue test rig according to claim 1, wherein: The main support frame (1) is provided with a slot (101), and the support plate (6) is provided with a plug on the back side. The slot (101) and the plug are inserted into each other.

3. The switch fatigue test rack of claim 1, wherein: The inner side of the receiving groove (601) is provided with an adhesive strip (602) to assist in fixing the switch.

4. The switch fatigue test rack of claim 1, wherein: The swing assembly (3) includes a motor (301) fixed inside the work box (2), the output end of the motor (301) is connected to a cam (302), the high end of the rotating rod (4) extends into the work box (2), and a push rod (303) is connected to the outside of the rotating rod (4). The work box (2) is provided with a torsion spring (304) that pushes the push rod (303) close to the cam (302).

5. The switch fatigue test rack of claim 1, wherein: It also includes a rod frame (9), which is installed on the outside of the rotating rod (4), and the pressing frame (5) is installed on the movable end of the rod frame (9).

6. A switch fatigue test rig according to claim 5, wherein: The rotating rod (4) has a limiting groove (401) on its outer side that corresponds to the receiving groove (601). The rod frame (9) is inserted into the limiting groove (401). The pressing frame (5) is provided with bolts (503) for fixing the rotating rod (4).

7. A switch fatigue test rig according to claim 6, wherein: The limiting groove (401) has a trapezoidal cross section, and the rod (9) is inserted into the limiting groove (401).

8. A switch fatigue test rig according to claim 7, wherein: The rod frame (9) is provided with a guide groove (901), and the pressing frame (5) includes a bolt (503) that slides with the guide groove (901). The bolt (503) is provided with a nut (502) for fixing it. The inner end of the bolt (503) extends toward the support plate (6) and is connected to a rubber block (504) through a threaded sleeve (501).

9. The switch fatigue test rack of claim 1, wherein: The main support frame (1) has a buffer rubber seat (10) on its back side.

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