Direct current measurement protection device

Abstract

The utility model provides a direct-current measurement protection device, which belongs to the technical field of measurement protection, aims to solve the problem that a conventional direct-current resistance tester is easy to damage and affects the progress of measurement, and comprises a box body, a positioning shaft, a storage cylinder, a lead, a mounting block, a control panel, a positioning plate and a positioning hole, the positioning shafts are fixedly connected to the left side and the right side of the box body; the storage cylinders are fixedly connected to the left side and the right side of the box body; the wire is slidably connected to the outer side of the storage cylinder. The mounting block is fixedly connected to the outer side of the wire; the control panel is slidably connected to the middle of the mounting block; the positioning plate is slidably connected to the right side of the mounting block; the positioning hole is formed in the middle of the control panel; according to the utility model, the direct current resistance tester is prevented from being damaged, the maintenance frequency of the direct current resistance tester is effectively reduced, the progress of measurement work is ensured, the structure is simple, and the production is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of measurement protection, and more specifically, particularly relates to a direct current measurement protection device. Background Art

[0002] When it is necessary to measure the resistance value of a product, a DC resistance tester is usually used for measurement. During the measurement process, the product needs to be repeatedly powered on and off to measure the hot resistance of the product. Existing DC resistance testers are usually composed of a box, a wire, a limit frame, a compression spring, etc.

[0003] For example, CN202220685076.2 discloses a DC resistance tester, which belongs to the technical field of DC resistance testers, and includes a test box, wherein protection boxes are installed on both sides of the test box, compression springs are installed on the front of each protection box, baffles are installed on the end of each compression spring away from the protection box, a power board is placed on the front of each baffle, a wire outlet hole is opened on the front of each protection box, a rotating motor is installed on the inner wall of each protection box, the output end of each rotating motor is rotatably connected to a winding shaft, and a wire is sleeved on the outer surface of each winding shaft; the DC resistance tester, using the power provided by the rotating motor in conjunction with the protection box, can drive the winding shaft to rotate, so that the wire can be quickly retracted into the protection box through the wire outlet hole to prevent the wire from being scattered outside, which is easy to wear and affect the service life of the wire, and at the same time, it can also avoid the problem of the wires being entangled together, affecting the convenience of using the tester.

[0004] Based on the above, when measuring the resistance of a product, the existing DC resistance tester is prone to forgetting to turn off the power of the product due to the negligence of the staff, resulting in live measurement, thereby causing damage to the DC resistance tester, which not only requires repeated maintenance of the tester, but also affects the progress of the measurement work. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a DC measurement protection device to solve the problem that when the existing DC resistance tester measures the resistance of the product, it is easy for the staff to forget to cut off the power of the product due to negligence, resulting in live measurement, thereby causing damage to the DC resistance tester, which not only requires repeated maintenance of the tester, but also affects the progress of the measurement work.

[0006] The purpose and effect of the DC measurement protection device of the utility model are achieved by the following specific technical means:

[0007] A DC measurement and protection device comprises a box body, a positioning shaft, a storage cylinder, a wire, a mounting block, a control board, a positioning plate and a positioning hole; two positioning shafts are provided, and the two positioning shafts are fixedly connected to the left and right sides of the box body respectively; two storage cylinders are provided, and the two storage cylinders are fixedly connected to the left and right sides of the box body respectively; two wires are provided, and the two wires are slidably connected to the outside of the two storage cylinders respectively, and the outside of the two wires is fixedly connected with a connecting clip respectively; the mounting block is fixedly connected to the outside of the wire on the left side; the control board is slidably connected to the middle part of the mounting block; the positioning plate is slidably connected to the right side of the mounting block; two positioning holes are provided, and the two positioning holes are both opened in the middle part of the control board.

[0008] Furthermore, the control panel includes a telescopic rod and a protective plate; three telescopic rods are provided, and the three telescopic rods are evenly distributed and fixedly connected to the inner side of the control panel, and the three telescopic rods are all fixedly connected to the mounting block.

[0009] Furthermore, the positioning shaft includes a winding cylinder and a spiral spring; two winding cylinders are provided, and the two winding cylinders are respectively rotatably connected to the outer sides of the two positioning shafts; two spiral springs are provided, and the two winding cylinders are respectively elastically connected to the two positioning shafts through the two spiral springs.

[0010] Furthermore, the positioning plate includes an elastic part and a limiting plate; two elastic parts are provided, and the positioning plate is elastically connected to the mounting block through the two elastic parts; two limiting plates are provided, and both limiting plates are fixedly connected to the inner side surface of the positioning plate, and the two limiting plates are respectively slidably connected to the two positioning holes, and the left side of the lower end surface of the two limiting plates is an arc structure.

[0011] Furthermore, the mounting block includes an elastic sheet; two elastic sheets are provided, and the two elastic sheets are respectively fixedly connected to the upper and lower sides of the mounting block, and the elastic sheet is an arc-shaped structure.

[0012] Furthermore, the mounting block also includes a fuse; the fuse is clamped on the inner side of the mounting block.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model adds a winding cylinder and a storage cylinder on the basis of a traditional DC resistance tester. The winding cylinder and the spiral spring facilitate automatic retraction of the wire after use, effectively avoiding the wire being scattered outside and causing wear, increasing the service life of the wire, and avoiding the situation where the wire is entangled and affects use.

[0015] The utility model adds a fuse on the basis of a traditional DC resistance tester. If the product is not powered off during measurement, current flows into the fuse to melt the conductive material inside the fuse, thereby protecting the DC resistance tester and making it impossible for the DC resistance tester to form a closed loop, thereby avoiding damage to the DC resistance tester, effectively reducing the number of repairs to the DC resistance tester, and ensuring the progress of the measurement work.

[0016] The utility model adds a control board on the basis of the traditional DC resistance tester, shields the fuse by the protective plate, thereby preventing the fuse from being damaged by collision. When replacing the fuse, the positioning plate is pulled outward and the control board is pressed to push the fuse out of the mounting block, which effectively improves the replacement efficiency of the fuse and is simple and easy to operate.

[0017] The utility model discloses the ... BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the box body of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the storage tube of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the positioning shaft of the utility model.

[0022] Figure 5 It is a structural schematic diagram of the control panel of the utility model.

[0023] Figure 6 It is a structural schematic diagram of the installation block of the utility model.

[0024] Figure 7 This utility model Figure 5 Schematic diagram of the local enlarged structure at point A in the middle.

[0025] Figure 8 This utility model Figure 6 Schematic diagram of the local enlarged structure at point B in the middle.

[0026] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0027] 1. Box body; 2. Positioning shaft; 201. Winding cylinder; 202. Volute spring; 3. Storage cylinder; 4. Wire; 5. Mounting block; 501. Elastic sheet; 502. Fuse; 6. Control board; 601. Telescopic rod; 602. Protective plate; 7. Positioning plate; 701. Elastic part; 702. Limiting plate; 8. Positioning hole. DETAILED DESCRIPTION

[0028] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0029] Example:

[0030] As attached Figure 1 To Attachment Figure 8 As shown:

[0031] The utility model provides a DC measurement protection device, comprising a box body 1, a positioning shaft 2, a storage tube 3, a wire 4, a mounting block 5, a control board 6, a positioning plate 7 and a positioning hole 8; two positioning shafts 2 are provided, and the two positioning shafts 2 are respectively fixedly connected to the left and right sides of the box body 1; two storage tubes 3 are provided, and the two storage tubes 3 are respectively fixedly connected to the left and right sides of the box body 1; two wires 4 are provided, and the two wires 4 are respectively slidably connected to the outsides of the two storage tubes 3, and the outsides of the two wires 4 are respectively fixedly connected with a connecting clip; the mounting block 5 is fixedly connected to the outside of the left wire 4; the control board 6 is slidably connected to the middle part of the mounting block 5; the positioning plate 7 is slidably connected to the right side of the mounting block 5; two positioning holes 8 are provided, and the two positioning holes 8 are both opened in the middle part of the control board 6.

[0032] Among them, the positioning shaft 2 includes a winding cylinder 201 and a spiral spring 202; two winding cylinders 201 are provided, and the two winding cylinders 201 are respectively rotatably connected to the outer sides of the two positioning shafts 2; two spiral springs 202 are provided, and the two winding cylinders 201 are elastically connected to the two positioning shafts 2 through the two spiral springs 202 respectively; in use, the winding cylinder 201 and the spiral spring 202 are convenient for automatically retracting the wire 4 after use, and storing the wire 4 in the storage cylinder 3, which effectively avoids the wire 4 being scattered outside and causing wear, improves the service life of the wire 4, and avoids the situation where the wire 4 is entangled and affects the use, and the winding cylinder 201 is positioned by the positioning shaft 2.

[0033] Among them, the mounting block 5 includes an elastic sheet 501; two elastic sheets 501 are provided, and the two elastic sheets 501 are respectively fixedly connected to the upper and lower sides of the mounting block 5, and the elastic sheet 501 is an arc-shaped structure; in use, the elastic sheet 501 is squeezed by the fuse 502 to deform the elastic sheet 501, and the fuse 502 can be pushed into the mounting block 5 at this time. When the fuse 502 moves to a suitable position, the elastic sheet 501 automatically rebounds to position the fuse 502, thereby preventing the fuse 502 from falling, effectively ensuring the installation stability of the fuse 502, and having a simple structure and easy production.

[0034] Among them, the mounting block 5 also includes a fuse 502; the fuse 502 is clamped on the inner side of the mounting block 5; in use, after the connection clip is clamped at the measurement location, if the product is not powered off, the current flows into the fuse 502 to melt the conductive material inside the fuse 502, thereby protecting the DC resistance tester and preventing the DC resistance tester from forming a closed loop, thereby avoiding damage to the DC resistance tester, effectively reducing the number of repairs to the DC resistance tester, and thus ensuring the progress of the measurement work.

[0035] Among them, the control panel 6 includes a telescopic rod 601 and a protective plate 602; three telescopic rods 601 are provided, and the three telescopic rods 601 are evenly distributed and fixedly connected to the inner side of the control panel 6, and the three telescopic rods 601 are fixedly connected to the mounting block 5; in use, the movement of the control panel 6 is guided by the telescopic rod 601, and the fuse 502 is shielded by the protective plate 602, so as to prevent the fuse 502 from being damaged by collision. When replacing the fuse 502, the control panel 6 is pressed to push the fuse 502 out of the mounting block 5, which effectively improves the replacement efficiency of the fuse 502, and the operation is simple and convenient to use.

[0036] Among them, the positioning plate 7 includes an elastic member 701 and a limit plate 702; two elastic members 701 are provided, and the positioning plate 7 is elastically connected to the mounting block 5 through the two elastic members 701; two limit plates 702 are provided, and the two limit plates 702 are fixedly connected to the inner side surface of the positioning plate 7, and the two limit plates 702 are respectively slidably connected to the two positioning holes 8, and the left side of the lower end surface of the two limit plates 702 is an arc structure; in use, the positioning plate 7 can be automatically reset by the elastic member 701, and the position of the control plate 6 is fixed by the limit plate 702.

[0037] Specific usage and function of this embodiment: During use, the winding tube 201 and the spiral spring 202 are convenient for automatically retracting the wire 4 after use, and the wire 4 is stored in the storage tube 3, which effectively avoids the wire 4 from being scattered outside and causing wear, thereby increasing the service life of the wire 4 and avoiding the situation where the wire 4 is entangled and affects the use. After the connecting clip is clamped at the measurement location, if the product is not powered off, the current flows into the fuse 502 to melt the conductive material inside the fuse 502, thereby protecting the DC resistance tester, making it impossible for the DC resistance tester to form a closed loop, thereby avoiding damage to the DC resistance tester, effectively reducing the number of repairs to the DC resistance tester, and thus ensuring the progress of the measurement work, placing the fuse 502 on the lower side of the control board 6, pushing the control board 6 to squeeze the elastic sheet 501, so that the elastic sheet 501 is pressed. The elastic sheet 501 is deformed, and the fuse 502 can be pushed into the mounting block 5 at this time. When the fuse 502 moves to the appropriate position, the elastic sheet 501 automatically rebounds to position the fuse 502, thereby preventing the fuse 502 from falling, effectively ensuring the installation stability of the fuse 502. The structure is simple and easy to produce. The positioning plate 7 can be automatically reset by the elastic member 701, so that the limit plate 702 is inserted into the positioning hole 8 to realize the positioning of the control board 6. The movement of the control board 6 is guided by the telescopic rod 601, and the fuse 502 is shielded by the protective plate 602, thereby preventing the fuse 502 from being damaged by collision. When replacing the fuse 502, the positioning plate 7 is pulled outward and the control board 6 is pressed, so that the fuse 502 is pushed out of the mounting block 5, which effectively improves the replacement efficiency of the fuse 502. The operation is simple and convenient to use.

Claims

1. A DC measurement protection device, characterized in that: The invention comprises a box body (1), a positioning shaft (2), a storage tube (3), a wire (4), a mounting block (5), a control panel (6), a positioning plate (7) and a positioning hole (8); the left and right sides of the box body (1) are respectively fixedly connected with a positioning shaft (2); the left and right sides of the box body (1) are respectively fixedly connected with a storage tube (3); the outer side of each storage tube (3) is slidably connected with a wire (4), and the outer side of each wire (4) is fixedly connected with a connecting clip; the mounting block (5) is fixedly connected to the outer side of the left wire (4); the control panel (6) is slidably connected to the middle part of the mounting block (5); the positioning plate (7) is slidably connected to the right side of the mounting block (5); and a plurality of positioning holes (8) are provided in the middle part of the control panel (6).

2. A DC measurement protection device as claimed in claim 1, characterized in that: The positioning shaft (2) comprises a winding cylinder (201) and a spiral spring (202); the outer side surface of each positioning shaft (2) is rotatably connected to one of the winding cylinders (201); and the two winding cylinders (201) are elastically connected to the two positioning shafts (2) via the two spiral springs (202), respectively.

3. A DC measurement protection device as claimed in claim 1, characterized in that: The mounting block (5) comprises an elastic sheet (501); the upper and lower sides of the mounting block (5) are respectively fixedly connected with one of the elastic sheets (501).

4. A DC measurement protection device as claimed in claim 1, characterized in that: The mounting block (5) also includes a fuse (502); the fuse (502) is clamped on the inner side of the mounting block (5).

5. A DC measurement protection device as claimed in claim 1, characterized in that: The control panel (6) comprises a telescopic rod (601) and a protective plate (602); a plurality of the telescopic rods (601) are evenly distributed and fixedly connected to the inner side surface of the control panel (6), and the plurality of the telescopic rods (601) are all fixedly connected to the mounting block (5).

6. A DC measurement protection device as claimed in claim 1, characterized in that: The positioning plate (7) comprises an elastic member (701) and a limiting plate (702); the positioning plate (7) is elastically connected to the mounting block (5) via a plurality of the elastic members (701); a plurality of limiting plates (702) are fixedly connected to the inner side surface of the positioning plate (7), and the plurality of limiting plates (702) are respectively slidably connected to a plurality of the positioning holes (8).

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