A relay protection device test board

Abstract

The application relates to the technical field of relay protection device detection equipment, and discloses a relay protection device test board, which comprises a supporting base, a motor, a surrounding plate, a tester and a cover plate. The supporting base comprises a top plate and a support, the support is arranged at the lower part of the top plate, the motor is arranged on the support, the surrounding plate is arranged at the side of the support and is connected with the support in sliding mode, the tester is arranged on the top surface of the top plate, and the cover plate is arranged on the top of the tester. The top plate is provided with a slot which is matched with the surrounding plate in plug-in mode, a proximity switch is arranged on the cover plate, the proximity switch is electrically connected with the motor, and the motor is used for driving the surrounding plate to move through the slot and towards one side of the cover plate. The relay protection device test board can prevent the power line of the tester from being extruded, prevent the power line of the relay protection device from being extruded or cut off, and avoid electric shock accidents.

Description

Technical Field

[0001] This invention relates to the field of relay protection device testing equipment, and in particular to a relay protection device test bench. Background Technology

[0002] After installation, the relay protection device needs to be tested for reliability on site. The test method is to use the excitation quantity generated by the relay protection device tester to stimulate the relay protection device, thereby detecting whether the relay protection device can issue a warning signal to the operating personnel in a timely manner, or directly issue a trip command to the controlled circuit breaker.

[0003] Existing relay protection device testers are usually equipped with a test stand for support and placement. In order to protect the tester from dust, the test stand is equipped with sealed shielding components such as covers, plates, and boxes. When using the tester, the power cord needs to be pulled out through the sealed shielding components to connect to the power supply. Due to the airtight nature of the sealed shielding components, if the power cord is not disconnected and pulled back when the tester is turned off, the power cord may be squeezed, pinched, or cut off, resulting in electric shock or short circuit accidents. Summary of the Invention

[0004] The purpose of this invention is to provide a relay protection device test bench that can protect the power cord from being squeezed or cut, thus solving the technical problem of the power cord of the relay protection device being squeezed or cut.

[0005] To achieve the above objectives, the present invention provides a relay protection device test bench, which includes a support base, a motor, a surrounding plate, a tester, and a cover plate. The support base includes a top plate and a bracket. The bracket is located at the lower part of the top plate, the motor is located on the bracket, the surrounding plate is located on the side of the bracket and is slidably connected to the bracket vertically, the tester is located on the top surface of the top plate, and the cover plate is located on the top of the tester.

[0006] The top plate has a slot that engages with the surrounding plate. The cover plate has a proximity switch that is electrically connected to the motor. The motor drives the surrounding plate to pass through the slot and move toward one side of the cover plate.

[0007] Preferably, the cover plate includes a positioning frame, a force-bearing plate, and a plate body. The force-bearing plate passes through the plate body and corresponds to the position of the slot. The positioning frame is located above the force-bearing plate, and the proximity switch is located on the positioning frame.

[0008] Preferably, the top of the enclosure is provided with a strip groove, and when the enclosure moves toward the side of the cover plate, the force-bearing plate is inserted into the strip groove.

[0009] Preferably, the positioning frame includes a support shaft and a crossbar, the support shaft is disposed on the plate body and connected to the crossbar, the proximity switch is disposed on the crossbar, and a spring is sleeved on the support shaft.

[0010] Preferably, threaded rods are provided laterally at the front and rear positions of the top plate, and clamping plates are provided longitudinally at the left and right positions of the top plate, with the two ends of the threaded rods connected to the clamping plates on both sides respectively.

[0011] Preferably, a lead screw is installed on the top of the motor, and a sliding frame is installed on the bottom of the enclosure. One end of the lead screw is connected to the rotating shaft of the motor, and the other end is fixedly connected to the sliding frame.

[0012] Preferably, the bracket includes a first fixed frame and a support rod, the top of the support rod is connected to the top plate, the fixed frame is connected to the support, and the motor is mounted on the fixed frame.

[0013] Preferably, the bracket includes a second fixed frame, which is disposed above the first fixed frame, and the sliding frame is slidably connected to the second fixed frame.

[0014] Compared with the prior art, the relay protection device test bench of this invention has the following advantages:

[0015] The relay protection device test bench of the present invention includes a support base 1, a motor 2, a surrounding plate 3, a tester 4, a cover plate 5, and a proximity switch 6. In use, the tester is placed between the top plate of the support base and the cover plate. The motor drives the surrounding plate to slide up and down. When the surrounding plate slides upward and comes into contact with the cover plate, the surrounding plate, cover plate, and top plate together seal to form a sealed dustproof box, protecting the tester inside and preventing excessive dust accumulation due to constant exposure, thus reducing the frequency of brushing and cleaning. When the tester is idle, its power cord should be collected and placed between the surrounding plate and the tester. The motor is started to rotate and drive the surrounding plate to slide upward and seal. If the power cord is not disconnected and collected at this time, the surrounding plate will contact the power cord of the tester and press the power cord against the cover plate, thereby triggering the proximity switch. The proximity switch controls the cutting off of the motor's power, causing the surrounding plate to stop rising further, preventing the power cord from being squeezed, cut, or broken when the surrounding plate closes. This effectively protects the power cord from squeezing and prevents electric shock accidents. Attached Figure Description

[0016] Figure 1 This is a front view (in use) of the relay protection device test bench according to an embodiment of the present invention;

[0017] Figure 2 This is a rear view of the relay protection device test bench according to an embodiment of the present invention;

[0018] Figure 3This is a bottom view of the relay protection device test bench according to an embodiment of the present invention;

[0019] Figure 4 This is a front view (closed state) of the relay protection device test bench according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the enclosure panel according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the cover plate in an embodiment of the present invention.

[0022] In the picture:

[0023] 1. Support base; 101. Top plate; 102. Bracket; 1021. First fixing frame; 1022. Second fixing frame; 1023. Support rod; 103. Threaded rod; 104. Clamping plate;

[0024] 2. Motor; 201. Lead screw

[0025] 3. Enclosure panel; 301. Sliding frame; 302. Strip groove;

[0026] 4. Testing equipment;

[0027] 5. Cover plate; 501. Positioning frame; 5011. Support shaft; 5012. Crossbar; 502. Load-bearing plate; 503. Plate body;

[0028] 6. Proximity switch Detailed Implementation

[0029] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0030] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., used in this invention to indicate the orientation or positional relationship are based on the positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device and element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] In the description of this invention, it should be understood that the terms "first," "second," etc., are used to describe various types of information, but these terms are not limited to them; they are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0032] like Figures 1-6 As shown, the present invention provides a relay protection device test bench, which includes a support base 1, a motor 2, a surrounding plate 3, a tester 4, and a cover plate 5. The support base 1 includes a top plate 101 and a bracket 102. The bracket 102 is located at the lower part of the top plate 101, the motor 2 is located on the bracket 102, the surrounding plate 3 is located on the side of the bracket 102 and is slidably connected to the bracket 102 vertically, the tester 4 is located on the top surface of the top plate 101, and the cover plate 5 is located on the top of the tester 4. The top plate 101 has a slot for inserting and engaging with the surrounding plate 3, and the cover plate 5 has a proximity switch 6. The proximity switch 6 is electrically connected to the motor 2, and the motor 2 is used to drive the surrounding plate 3 to pass through the slot and move toward one side of the cover plate 5.

[0033] Based on the above technical solution, in this embodiment, a testing instrument 4 is placed between the top plate 101 of the support base 1 and the cover plate 5. The motor 2 can rotate in both directions to drive the surrounding plate 3 to slide up and down. When the surrounding plate 3 slides upward and comes into contact with the cover plate 5, the surrounding plate 3, the cover plate 5, and the top plate 101 together form a seal, as shown in the figure. Figure 4 The enclosed dustproof box shown can cover the unused tester 4 inside, preventing the tester 4 from being exposed to excessive dust and increasing the frequency of brushing and cleaning. When the tester 4 is not in use, its power cord should be collected and placed between the enclosure 3 and the tester 4. Start the motor 2 to rotate and drive the enclosure 3 to slide upward and seal. If the power cord is not disconnected and collected at this time, the enclosure 3 will contact the power cord of the tester 4 and press the power cord against the cover plate 5, thereby triggering the proximity switch 6. The proximity switch 6 controls the power to cut off the motor 2, so that the enclosure 3 stops rising and prevents the power cord from being squeezed, cut or broken when the enclosure 3 closes, thus effectively protecting the power cord from squeezing.

[0034] Furthermore, such as Figure 6 As shown, in this embodiment, the cover plate 5 includes a positioning frame 501, a force-bearing plate 502, and a plate body 503. The force-bearing plate 502 passes through the plate body 503 and corresponds to the position of the slot. The positioning frame 501 is located above the force-bearing plate 502, and the proximity switch 6 is located on the positioning frame 501. After the testing instrument 4 is used and the power cord is retracted, the enclosure 3 slides upward to engage with the force-bearing plate 502 until it abuts against the cover plate 5 and seals. This prevents the force-bearing plate 502 from being pushed upward and triggering the proximity switch 6 after the power cord is retracted, thus controlling the power cut-off of the motor 2 and ensuring the normal closing operation of the enclosure 3.

[0035] Furthermore, such as Figure 5 and Figure 6As shown, in this embodiment, the top of the enclosure 3 is provided with a strip groove 302. When the enclosure 3 moves toward the cover plate 5, the force plate 502 is inserted into the strip groove 302, thereby making the enclosure 3 and the cover plate 5 form a tighter fit.

[0036] Further, the positioning frame 501 includes a support shaft 5011 and a crossbar 5012. The support shaft 5011 is mounted on the plate body 503 and connected to the crossbar 5012. The proximity switch 6 is mounted on the crossbar 5012, and a spring is sleeved on the support shaft 5011. Figure 6 As shown, in this embodiment, a strip-shaped force plate 502 is slidably mounted on the support shaft 5011 of the positioning frame 501 by a spring. The middle section of the force plate 502 is directly opposite the proximity switch 6. When the force plate 502 slides upward, it will trigger the activation of the proximity switch 6, so that the proximity switch 6 can control the power supply of the motor 2 to be cut off, thereby realizing the protection of the power cord of the tester 4.

[0037] Furthermore, such as Figure 2 As shown, in this embodiment, threaded rods 103 are provided laterally at the front and rear positions of the top plate 101, and clamping plates 104 are provided longitudinally at the left and right positions of the top plate 101. The two ends of the threaded rods 103 are connected to the clamping plates 104 on both sides. In use, the clamping plates 104 on both sides abut against the left and right shell walls of the tester 4. The clamping plates 104 on both sides are used to clamp and fix the tester 4 to prevent the tester 4 from becoming loose.

[0038] Furthermore, such as Figure 2 As shown, in this embodiment, a lead screw 201 is installed on the top of the motor 2, and a sliding frame 301 is installed on the bottom of the enclosure 3. One end of the lead screw 201 is connected to the rotating shaft of the motor 2, and the other end is fixedly connected to the sliding frame 301. When in use, the motor 2 is started, and the lead screw 201 rotates with the motor 2. The lead screw 201, along with the sliding frame 301 and the enclosure 3, slides up and down, thereby realizing the function of the motor 2 rotating and propelling the enclosure 3 to slide upwards and block the obstruction.

[0039] Furthermore, such as Figure 2 As shown, in this embodiment, the bracket 102 includes a first fixed frame 1021 and a support rod 1023. The top of the support rod 1023 is connected to the top plate 101, and the bottom of the support rod 1023 is equipped with rollers to facilitate the movement of the test platform. The fixed frame 1021 is connected to the support rod 1023, and the motor 2 is located on the fixed frame 1021.

[0040] Furthermore, the bracket 102 includes a second fixing frame 1022, which is disposed above the first fixing frame 1021, and the sliding frame 301 is slidably connected to the second fixing frame 1022. Specifically, as follows... Figure 2 As shown, in this embodiment, the left and right vertical square rods of the sliding frame 301 are connected to the left and right sides of the second fixed frame 1022 through sliding fit, so as to realize a stable sliding connection between the sliding frame 301 and the bracket 102.

[0041] The working process of this invention is as follows: A testing instrument is placed between the top plate and the cover plate of the support base. A motor drives the enclosure to slide up and down. When the enclosure slides upward and comes into contact with the cover plate, the enclosure, cover plate, and top plate together seal to form a sealed dustproof box, covering the testing instrument inside. This prevents the testing instrument from being constantly exposed to excessive dust accumulation, thus reducing the frequency of brushing and cleaning. When the testing instrument is idle, its power cord should be collected and placed between the enclosure and the testing instrument. The motor is started to rotate and drive the enclosure to slide upward and seal. If the power cord is not disconnected and collected at this time, the enclosure will contact the power cord of the testing instrument and press the power cord against the cover plate, thereby triggering a proximity switch. The proximity switch controls the power to cut off the motor, causing the enclosure to stop rising. This prevents the power cord from being squeezed, cut, or broken when the enclosure closes, thus effectively protecting the power cord from squeezing and avoiding electric shock accidents.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A relay protection device test bench, characterized in that, The device includes a support base (1), a motor (2), a surrounding plate (3), a tester (4), and a cover plate (5). The support base (1) includes a top plate (101) and a bracket (102). The bracket (102) is located at the lower part of the top plate (101). The motor (2) is located on the bracket (102). The surrounding plate (3) is located on the side of the bracket (102) and is slidably connected to the bracket (102) vertically. The tester (4) is located on the top surface of the top plate (101). The cover plate (5) is located on the top of the tester (4). The top plate (101) has a slot that is inserted into the enclosure (3), and the cover plate (5) is provided with a proximity switch (6). The proximity switch (6) is electrically connected to the motor (2). The motor (2) is used to drive the enclosure (3) to pass through the slot and move toward one side of the cover plate (5). The cover plate (5) includes a positioning frame (501), a force-bearing plate (502), and a plate body (503). The force-bearing plate (502) passes through the plate body (503) and corresponds to the position of the slot. The positioning frame (501) is located above the force-bearing plate (502), and the proximity switch (6) is located on the positioning frame (501). The top of the enclosure (3) is provided with a strip groove (302). When the enclosure (3) moves toward the side of the cover plate (5), the force plate (502) is inserted into the strip groove (302). The enclosure (3) can connect the power cord of the tester (4) located at the top of the enclosure (3) to the force plate (502), thereby triggering the proximity switch (6). The proximity switch (6) controls the power supply of the motor (2) to be cut off, so that the enclosure (3) stops rising.

2. The relay protection device test board according to claim 1, characterized in that, The positioning frame (501) includes two support shafts (5011) and a crossbar (5012). The two support shafts (5011) are fixedly connected to the plate body (503) and respectively fixedly connected to both ends of the crossbar (5012). The proximity switch (6) is provided on the crossbar (5012). A spring is sleeved on the support shaft (5011). The two support shafts (5011) are respectively slidably mounted with a strip-shaped force plate (502) by the spring pushing.

3. The relay protection device test board according to claim 1, characterized in that, The top plate (101) is provided with threaded rods (103) at the front and rear positions respectively, and clamping plates (104) are provided at the left and right positions respectively. The two ends of the threaded rods (103) are connected to the clamping plates (104) on both sides respectively.

4. The relay protection device test bench according to claim 1, characterized in that, A lead screw (201) is installed on the top of the motor (2), and a sliding frame (301) is installed on the bottom of the enclosure (3). One end of the lead screw (201) is connected to the shaft of the motor (2), and the other end is fixedly connected to the sliding frame (301).

5. The relay protection device test board according to claim 4, characterized in that, The bracket (102) includes a first fixed frame (1021) and a support rod (1023). The top of the support rod (1023) is connected to the top plate (101). The fixed frame (1021) is connected to the support rod (1023). The motor (2) is located on the fixed frame (1021).

6. The relay protection device test board according to claim 5, characterized in that, The bracket (102) includes a second fixing frame (1022), which is located above the first fixing frame (1021), and the sliding frame (301) is slidably connected to the second fixing frame (1022).

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