Current load box for switch test

Abstract

The utility model discloses a current load box for a switch test, and relates to the related technical field of current load boxes. The load box comprises a box body and a load box body fixed on the inner bottom surface of the box body. A testing plate is fixed in the box body above the load box body, a positioning plate connected with the rear end face of the box body is arranged at the position of the adjusting port on the upper end face of the testing plate, and two vertical plates which are symmetrically arranged front and back are fixed on the front and rear end faces of the testing plate on the left and right sides of the adjusting port; a folding rod is arranged between the two vertical plates which are symmetrical front and back, the front and back end faces of the folding rod are sleeved with torsional springs, and an electric appliance electrically connected with the negative electrode of the load box body is fixed to the upper end face of the exterior of the box body. According to the utility model, the switch structure is positioned and clamped by the positioning plate, the switch structure can be limited, the stability of the test of the switch structure is ensured, and meanwhile, the folding rod rotates to compress the torsion spring, so that cables can be folded, and the cables are prevented from being scattered all around.

Description

Technical Field

[0001] The utility model belongs to the technical field related to current load boxes, and particularly relates to a current load box used for switch testing. Background Art

[0002] The current load box is an important device for simulating, measuring and adjusting current load. It has multiple functions and applications and is widely used in electronic testing, R&D and production. The current load box controls and adjusts the load current by adjusting the internal resistance value to meet the needs of different application scenarios. It plays an important role in simulating load conditions, stabilizing current supply, current measurement and monitoring, load balancing and distribution, protection and stability testing, and power and efficiency evaluation. At the same time, in order to test the working performance of the switch structure, the corresponding current load box can also be used. The switch is tested by electrically connecting the switch structure to the circuit between the current load box and the load. Therefore, by controlling the operation of the current load box, the loss of the switch can be recorded.

[0003] However, the existing current load box does not have the function of positioning the switch structure when testing the switch. Therefore, during the switch testing process, the switch structure is easily affected by the external environment, resulting in position shaking, causing the electrical connection between the cable and the switch structure to fall off, resulting in the inability to continue the test process. At the same time, after the switch test is completed, the cables are not easy to collect, so they are easily scattered everywhere and cannot be quickly sorted. To this end, we provide a current load box for switch testing to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a current load box for switch testing, which can limit the switch structure by positioning and clamping the switch structure through a positioning plate, thereby ensuring the stability of the switch structure test. At the same time, the rotation of the retracting rod compresses the torsion spring, so that the cables can be retracted to avoid the cables being scattered everywhere.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a current load box for switch testing, comprising a box body and a load box body fixed on the bottom surface of the box body; a test board is fixed inside the box body located above the load box body, a penetrating adjustment port is opened at the middle position of the upper end surface of the test board, a positioning plate connected with the rear end surface of the box body is arranged at the position of the adjustment port on the upper end surface of the test board, two vertical plates symmetrically arranged front and back are fixed on the front and rear end surfaces of the test board located on the left and right sides of the adjustment port, a folding rod is arranged between the two vertical plates symmetrically arranged front and back, cables are wound around the folding rod, the cable located on the left side of the adjustment port is electrically connected to the positive pole of the load box body, the front and rear end surfaces of the folding rod are sleeved with torsion springs, an electrical appliance electrically connected to the negative pole of the load box body is fixed on the upper end surface outside the box body, the cable located on the right side of the adjustment port is electrically connected to the electrical appliance, and the other end of each cable is electrically connected to an electric clamp.

[0007] The utility model is further configured that a baffle is arranged inside the box body located in front of the load box body, and a soft cushion is fixed on the rear end surface of the baffle.

[0008] The utility model is further configured such that locking plates are fixed to the left and right end surfaces of the baffle, locking openings are opened at positions corresponding to the locking plates on the front end surface of the box body, and the locking plates are fixed to the inner position of the locking openings by bolts.

[0009] The utility model is further configured that an adjusting block which slides inside the adjusting port is fixed on the lower end surface of the positioning plate, and a spring which abuts against the inner end surface of the adjusting port is fixed on the front end surface of the adjusting block.

[0010] The utility model is further configured that a positioning rod is fixed between the front and rear ends inside the regulating port, and the regulating block is slidably sleeved on the peripheral side of the positioning rod through the opened positioning hole.

[0011] The utility model is further configured that baffles are fixed at positions between two front-to-back symmetrical upright plates relative to the positioning plate, and through holes are provided at the end surfaces of the baffles.

[0012] The utility model is further configured such that each electric clamp is respectively connected to the end surface of the positioning plate relative to the blocking bar, and each cable electrically connected to the electric clamp slides through the inner position of the through hole.

[0013] The utility model is further configured such that the end faces of the vertical plates corresponding to the end faces of the folding rods are provided with penetrating turning openings, and both ends of the folding rods are rotatably arranged inside the turning openings and have ring openings on the surrounding sides, the torsion springs are located inside the ring openings, and the two ends of each torsion spring are respectively fixed on the inner sides of the ring openings and the turning openings.

[0014] The utility model has the following beneficial effects:

[0015] 1. When the utility model is in use, the positioning plate is moved forward on the upper end surface of the test plate to expand the distance between the positioning plate and the rear side surface of the box body. At this time, the switch structure is placed between the positioning plate and the rear side wall of the box body, and the positioning plate is loosened. Then the spring will directly push the positioning plate to reset, so that the positioning plate will clamp the switch structure, thereby achieving that the switch structure cannot move arbitrarily on the test plate, thereby ensuring the stability of the test process.

[0016] 2. When the utility model is in use, the electric clamp is pulled, thereby the electric clamp pulls the cable and drives the retracting rod to rotate, and then the retracting rod compresses the torsion spring. Therefore, after the electric clamp is released, the torsion spring will reset and drive the retracting rod to reverse and reset again, so that the retracting rod retracts the cable, thereby controlling the electric clamp to reconnect with the baffle bar, so that the cable can be retracted to avoid the cables being scattered everywhere.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The figure is a schematic diagram of the structure of a current load box used for switch testing.

[0020] Figure 2 This is the internal structure diagram of the box in the utility model.

[0021] Figure 3 It is the structural assembly drawing of the neutral plate of the utility model.

[0022] Figure 4 It is a structural diagram of the positioning plate in the utility model.

[0023] Figure 5 It is the structural diagram of the baffle in the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1- box body, 101- electrical appliances, 102- test board, 103- locking mouth, 104- adjusting mouth, 105- positioning rod, 2- load box body, 201- cable, 3- baffle, 301- cushion, 302- locking plate, 4- vertical plate, 401- baffle bar, 402- through hole, 403- turn mouth, 404- retracting rod, 405- ring mouth, 406- torsion spring, 5- electric clamp, 6- positioning plate, 601- adjusting block, 602- positioning hole, 603- spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1

[0028] See also Figure 1-5 The utility model is a current load box for switch testing. The positioning plate 6 can clamp the switch structure to limit the switch structure and ensure the stability of the switch structure test. At the same time, the rotation of the retracting rod 404 compresses the torsion spring 406, so that the cable 201 can be retracted to avoid the cable 201 being scattered everywhere.

[0029] Specifically, a box body 1 and a load box body 2 fixed to the bottom surface of the box body 1; a test board 102 is fixed inside the box body 1 above the load box body 2, and a penetrating adjustment port 104 is opened in the middle of the upper end surface of the test board 102. A positioning plate 6 connected to the rear end surface of the box body 1 is arranged at the position of the adjustment port 104 on the upper end surface of the test board 102. Two vertical plates 4 arranged symmetrically in front and back are fixed to the front and rear end surfaces of the test board 102 located on the left and right sides of the adjustment port 104. A folding rod 404 is provided between the two vertical plates 4, and cables 201 are wound around the folding rod 404. The cable 201 located on the left side of the adjustment port 104 is electrically connected to the positive pole of the load box body 2. The front and rear end surfaces of the folding rod 404 are sleeved with torsion springs 406. The upper end surface of the outer side of the box body 1 is fixed with an electrical appliance 101 electrically connected to the negative pole of the load box body 2. The cable 201 located on the right side of the adjustment port 104 is electrically connected to the electrical appliance 101, and the other end of each cable 201 is electrically connected to an electric clamp 5.

[0030] The operation process of this embodiment is as follows: through the setting and use of the above-mentioned structure, when it is necessary to test the switch structure, first move the positioning plate 6 forward on the upper end surface of the test plate 102 to expand the distance between the positioning plate 6 and the rear side surface of the box body 1, and then place the switch structure between the positioning plate 6 and the rear side wall of the box body 1, and release the positioning plate 6, so that the positioning plate 6 will clamp the switch structure, and then pull the electric clamp 5, so that the electric clamp 5 will pull the cable 201, and drive the retracting rod 404 to rotate, and then the retracting rod 404 compresses the torsion spring 406, so after releasing the electric clamp 5, the torsion spring 406 will reset, and drive the retracting rod 404 to reverse and reset again, so that the retracting rod 404 retracts the cable 201, thereby controlling the electric clamp 5 to reconnect with the baffle 401. Specific embodiment 2

[0032] See also Figure 2 , 4 5. Based on the specific embodiment 1, the positioning plate 6 is pushed by the spring 603 to ensure that the positioning plate 6 stably clamps the switch structure.

[0033] Specifically, a baffle 3 is provided inside the box body 1 located in front of the load box body 2, a soft pad 301 is fixed to the rear end face of the baffle 3, locking plates 302 are fixed to the left and right end faces of the baffle 3, and locking holes 103 are opened at the front end face of the box body 1 at the position corresponding to the locking plate 302, the locking plate 302 is fixed to the internal position of the locking hole 103 by bolts, an adjusting block 601 sliding in the internal position of the adjusting hole 104 is fixed to the lower end face of the positioning plate 6, a spring 603 abutting against the inner end face of the adjusting hole 104 is fixed to the front end face of the adjusting block 601, a positioning rod 105 is fixed between the front and rear ends inside the adjusting hole 104, and the adjusting block 601 is slidably sleeved on the peripheral side of the positioning rod 105 through the opened positioning hole 602.

[0034] The operation process of this embodiment is as follows: the locking plate 302 is installed in the inner position of the locking port 103 by means of bolts, so that the baffle plate 3 can be installed in the inner position of the box body 1, and then the baffle plate 3 will block the load box body 2, and at the same time, the soft pad 301 fixed on the rear end surface of the baffle plate 3 can limit the load box body 2 and avoid friction damage to the load box body 2, and when the positioning plate 6 moves toward the position opposite to the rear side wall of the box body 1, the positioning plate 6 will drive the adjustment block 601 to slide along the path of the adjustment port 104, and then the positioning plate 6 will control the adjustment block 601 to compress the spring 603, so when the switch structure is in the rear position of the positioning plate 6, the spring 603 pushes and resets the adjustment block 601, so that the positioning plate 6 clamps the switch structure, and at the same time, it is sleeved on the peripheral position of the positioning rod 105 through the positioning hole 602, and then the positioning rod 105 limits the adjustment block 601, so that the positioning plate 6 is stably located at the upper end surface position of the test plate 102. Specific embodiment three

[0036] See also Figure 2 , 3 On the basis of the first specific embodiment, the cable 201 passes through the inner position of the through hole 402, thereby avoiding the cable 201 from being bundled, and improving the stability of the cable 201 being gathered.

[0037] Specifically, a baffle 401 is fixed at the position between the two front and rear symmetrical vertical plates 4 relative to the positioning plate 6, and a through hole 402 is provided at the end face position of the baffle 401. Each electrical clamp 5 is respectively connected to the end face of the baffle 401 relative to the positioning plate 6, and each cable 201 electrically connected to the electrical clamp 5 slides through the inner position of the through hole 402. A through turning mouth 403 is provided at the end face of the vertical plate 4 corresponding to the end face of the folding rod 404, and the two ends of the folding rod 404 are rotatably set and a ring mouth 405 is provided on the surrounding side of the inner position of the turning mouth 403. The torsion spring 406 is located in the inner position of the ring mouth 405, and the two ends of each torsion spring 406 are respectively fixed on the inner position of the ring mouth 405 and the turning mouth 403.

[0038] The operation process of this embodiment is as follows: since the cable 201 passes through the through hole 402, when the retracting rod 404 retracts the cable 201, the cable 201 will be bundled by the through hole 402, so that the cable 201 is stably retracted. At the same time, when the retracting rod 404 rotates, the two ends of the retracting rod 404 rotate at the internal position of the turning mouth 403, and the torsion spring 406 is located inside the ring mouth 405 and the turning mouth 403, thereby ensuring that the torsion spring 406 can be stably compressed by the retracting rod 404.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A current load box for switch testing, comprising a box body (1) and a load box body (2) fixed to the bottom surface of the box body (1); characterized in that: A test plate (102) is fixed inside the box body (1) located above the load box body (2); a penetrating adjustment port (104) is provided in the middle of the upper end surface of the test plate (102); a positioning plate (6) connected to the rear end surface of the box body (1) is provided at the position of the adjustment port (104) on the upper end surface of the test plate (102); two vertical plates (4) symmetrically arranged front and back are fixed to the front and rear end surfaces of the test plate (102) located on the left and right sides of the adjustment port (104); and a retracting rod (40) is provided between the two vertical plates (4) symmetrically arranged front and back. 4), the circumference of the retracting rod (404) is wound with cables (201), the cables (201) located on the left side of the regulating port (104) are electrically connected to the positive pole of the load box body (2), the front and rear end surfaces of the retracting rod (404) are sleeved with torsion springs (406), the upper end surface outside the box body (1) is fixed with an electrical appliance (101) electrically connected to the negative pole of the load box body (2), the cables (201) located on the right side of the regulating port (104) are electrically connected to the electrical appliance (101), and the other end of each cable (201) is electrically connected to an electrical clamp (5).

2. A current load box for switch testing according to claim 1, characterized in that: A baffle (3) is arranged inside the box body (1) located in front of the load box body (2), and a soft pad (301) is fixed to the rear end surface of the baffle (3).

3. A current load box for switch testing according to claim 2, characterized in that: The left and right end surfaces of the baffle (3) are both fixed with locking plates (302), the front end surface of the box body (1) is provided with locking openings (103) at positions corresponding to the locking plates (302), and the locking plates (302) are fixed to the inner position of the locking openings (103) by bolts.

4. A current load box for switch testing according to claim 1, characterized in that: The lower end surface of the positioning plate (6) is fixed with an adjustment block (601) which slides inside the adjustment opening (104), and the front end surface of the adjustment block (601) is fixed with a spring (603) which abuts against the inner end surface of the adjustment opening (104).

5. A current load box for switch testing according to claim 4, characterized in that: A positioning rod (105) is fixed between the front and rear ends inside the adjustment port (104), and the adjustment block (601) is slidably sleeved on the peripheral side of the positioning rod (105) through the opened positioning hole (602).

6. A current load box for switch testing according to claim 1, characterized in that: A blocking bar (401) is fixed at a position between the two front-to-back symmetrical vertical plates (4) relative to the positioning plate (6), and a through hole (402) is provided at the end surface of the blocking bar (401).

7. A current load box for switch testing according to claim 6, characterized in that: Each of the electrical clamps (5) is respectively connected to the end surface of the blocking bar (401) relative to the positioning plate (6), and each cable (201) electrically connected to the electrical clamp (5) slides through the inner position of the through hole (402).

8. A current load box for switch testing according to claim 7, characterized in that: The end surface of the vertical plate (4) corresponding to the end surface of the folding rod (404) is provided with a through-turning opening (403), and both ends of the folding rod (404) are rotatably arranged inside the turning opening (403) and are provided with a ring opening (405) on the circumferential side, the torsion spring (406) is located inside the ring opening (405), and the two ends of each torsion spring (406) are respectively fixed on the inner side of the ring opening (405) and the turning opening (403).

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