An electrical overcurrent and overtemperature detection device

Abstract

The present invention relates to the field of circuit detection technology, and discloses an electrical overcurrent and overtemperature detection device, including a protective shell, the protective shell is divided into two mutually matching upper and lower protective shells, both sides of the upper protective shell are fixedly connected with a C-shaped mounting plate, both sides of the C-shaped mounting plate are interspersed with short rods, the inner bottom wall of the C-shaped mounting plate, the lower surface of the C-shaped mounting plate is fixedly connected with two slide rails, the interiors of the two slide rails are slidably connected with a slide plate, and the two short rods are respectively fixedly connected with the corresponding slide plates. The electrical overcurrent and overtemperature detection device, when in use, can achieve quick disassembly of the upper and lower protective shells by squeezing the short rods, and when installing, only the vertical plate needs to be inserted into the corresponding second limit hole, and installation and disassembly are convenient, and auxiliary tools such as bolts and screwdrivers are not required, which greatly facilitates people's use and maintenance.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit detection, in particular to an electrical over-current and over-temperature detection device. Background Art

[0002] Circuit: A conductive loop composed of metal wires and electrical and electronic components is called a circuit. The simplest circuit consists of a power supply load and wires, switches and other components connected in a certain way to provide a path for the flow of charge.

[0003] In circuit maintenance and daily use, it is often necessary to detect overcurrent and overtemperature of electricity. The instruments on the market are often made of circuit overcurrent and overtemperature modules for detection. When in use, the instrument is often composed of two mutually matching protective shells and internal components. The two protective shells are often connected by bolts when in use. However, due to the small size of the instrument, the bolts used are also small. During maintenance, it is necessary to use a screwdriver to disassemble it. After multiple disassembly, it is very easy to slip the thread, resulting in the inability to tighten, which is inconvenient for people to use and repair. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an electrical overcurrent and overtemperature detection device, which has the advantage of greatly facilitating people's use and maintenance, and solves the problem that two protective shells are often connected by bolts when in use, but due to the small size of the instrument, the bolts used are also small. During maintenance, they need to be disassembled with a screwdriver, and after multiple disassemblies, the thread is easily stripped, resulting in the situation that it cannot be tightened, which is inconvenient for people to use and maintain.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of greatly facilitating people's use and maintenance, the present invention provides the following technical solutions: an electrical overcurrent and overtemperature detection device, comprising a protective shell, the protective shell is divided into two mutually matching upper protective shells and lower protective shells, the two side surfaces of the upper protective shell are fixedly connected with a C-shaped mounting plate, the two side surfaces of the C-shaped mounting plate are interspersed with short rods, the lower surface of the inner bottom wall of the C-shaped mounting plate is fixedly connected with two slide rails, the interiors of the two slide rails are slidably connected with slide plates, the two short rods are respectively fixedly connected to the corresponding slide plates, a first spring is fixedly connected between the slide plate and the inner surface of the C-shaped mounting plate, and the two slide plates are opposite to each other. One side is fixedly connected with a limiting protrusion, the lower surface of the C-shaped mounting plate is fixedly connected with a vertical plate, the left and right sides of the vertical plate are hinged with telescopic parts, the outer surface of the telescopic part and the outer surface of the vertical plate are fixedly connected with a tension spring, the opposite sides of the two slides are fixedly connected with a push rod, the two side surfaces of the lower protective shell are fixedly connected with two first limiting plates, the outer surface of the first limiting plate is provided with a first limiting hole, the first limiting hole coincides with the limiting protrusion, the two side surfaces of the lower protective shell are fixedly connected with second limiting plates, the outer surface of the second limiting plate is provided with a second limiting hole, the second limiting hole corresponds to the vertical plate.

[0008] Preferably, the telescopic member comprises a mounting block with a hollow interior, the mounting block is hinged to the vertical plate, a telescopic rod is disposed on the outer surface of the mounting block, and a second spring is fixedly connected between the telescopic rod and one end of the mounting block.

[0009] Preferably, one end of the telescopic rod passes through and extends to the interior of the mounting block and is originally welded to the second spring. The outer surface of the telescopic rod is fixedly connected to a limiting block, and the limiting block is located inside the mounting block.

[0010] Preferably, a first roller is provided at one end of the telescopic rod away from the second spring, and an outer surface of the first roller abuts against the second limiting plate.

[0011] Preferably, a second roller is fixedly connected to a side of the push rod away from the slide plate, and the second roller abuts against the telescopic rod.

[0012] Preferably, the angle between the telescopic member and the vertical plate ranges from thirty to sixty degrees.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present invention provides an electrical overcurrent and overtemperature detection device, which has the following beneficial effects:

[0015] (1) When the electrical over-current and over-temperature detection device needs to be disassembled, the two short rods are squeezed relative to each other at the same time. At this time, the first spring is in an energy storage state, and the two short rods drive the slide to move relative to each other. The slide drives the limiting protrusion to be pulled out of the first limiting hole, and there is a certain gap between the slide and the first limiting plate. At the same time, the two slides move relative to each other, and the slide pushes the telescopic part to move, thereby reducing the distance between the telescopic part and the vertical plate until the telescopic part can smoothly pass through the second limiting hole. Then, the upper protective shell can be removed from the lower protective shell, which facilitates disassembly. Conversely, the vertical plate is inserted into the second limiting hole. Under the elastic force of the first spring, the two slides move back to back, so that the limiting protrusion is stuck in the first limiting hole. Under the elastic force of the tension spring, the telescopic part is stuck under the second limiting plate, which makes the upper protective shell and the lower protective shell tightly connected, thereby facilitating disassembly and installation.

[0016] (2) When using the electrical over-current and over-temperature detection device, the upper protective shell and the lower protective shell can be quickly disassembled by squeezing the short rod. When installing, it is only necessary to insert the vertical plate or the person into the corresponding second limit hole. The installation and disassembly are convenient and there is no need to use auxiliary tools such as bolts and screwdrivers, which greatly facilitates people's use and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The front view of the present invention

[0018] Figure 2 It is a side view structural schematic diagram of the present invention;

[0019] Figure 3 For the present invention Figure 2 A is an enlarged view of the structure;

[0020] Figure 4 It is a schematic diagram of the telescopic member structure of the present invention.

[0021] In the figure: 1 upper protective shell, 2 lower protective shell, 3 C-shaped mounting plate, 4 short rod, 5 slide rail, 6 slide plate, 7 first spring, 8 limiting protrusion, 9 vertical plate, 10 telescopic member, 11 tension spring, 12 push rod, 13 first limiting plate, 14 first limiting hole, 15 second limiting plate, 16 second limiting hole, 1001 mounting block, 1002 telescopic rod, 1003 second spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1-4 , an electrical overcurrent and overtemperature detection device, comprising a protective shell, the protective shell is divided into two mutually matching upper protective shells 1 and lower protective shells 2, both sides of the upper protective shell 1 are fixedly connected with C-shaped mounting plates 3, both sides of the C-shaped mounting plates 3 are interspersed with short rods 4, the inner bottom wall of the C-shaped mounting plate 3, the lower surface of the C-shaped mounting plate 3 is fixedly connected with two slide rails 5, the insides of the two slide rails 5 are slidably connected with slide plates 6, the two short rods 4 are respectively fixedly connected with the corresponding slide plates 6, the slide plates 6 are fixedly connected with the inner surface of the C-shaped mounting plate 3 with a first spring 7, the two slide plates 6 are fixedly connected with the limited position protrusions 8 on the opposite sides, the lower surface of the C-shaped mounting plate 3 is fixedly connected with a vertical plate 9, the vertical plate 9 The left and right sides are hinged with telescopic parts 10, and a tension spring 11 is fixedly connected between the outer surface of the telescopic part 10 and the outer surface of the vertical plate 9. The two opposite sides of the two slides 6 are fixedly connected with push rods 12. The two side surfaces of the lower protective shell 2 are fixedly connected with two first limit plates 13, and the outer surface of the first limit plate 13 is provided with a first limit hole 14, and the first limit hole 14 coincides with the limit protrusion 8. The two side surfaces of the lower protective shell 2 are fixedly connected with second limit plates 15, and the outer surface of the second limit plate 15 is provided with a second limit hole 16, and the second limit hole 16 corresponds to the vertical plate 9.

[0024] Furthermore, the telescopic member 10 includes an internally hollow mounting block 1001, the mounting block 1001 is hinged to the vertical plate 9, a telescopic rod 1002 is disposed on the outer surface of the mounting block 1001, and a second spring 1003 is fixedly connected between the telescopic rod 1002 and one end of the mounting block 1001 to achieve a telescopic effect.

[0025] Furthermore, one end of the telescopic rod 1002 penetrates and extends to the interior of the mounting block 1001, and is originally welded to the second spring 1003. The outer surface of the telescopic rod 1002 is fixedly connected to a limiting block, and the limiting block is located inside the mounting block 1001, thereby preventing the telescopic rod 1002 from being pulled out of the mounting block 1001.

[0026] Furthermore, a first roller is provided at one end of the telescopic rod 1002 away from the second spring 1003 , and the outer surface of the first roller abuts against the second limiting plate 15 , thereby reducing friction and increasing the service life of the device.

[0027] Furthermore, a second roller is fixedly connected to a side of the push rod 12 away from the slide plate 6, and the second roller abuts against the telescopic rod 1002, thereby reducing friction and increasing the service life of the device.

[0028] Furthermore, the angle between the telescopic member 10 and the vertical plate 9 ranges from thirty to sixty degrees, which ensures the stable operation of the device.

[0029] When the first spring 7 is in the state of storing energy, the two short rods 4 drive the slide plate 6 to move relative to each other, and the slide plate 6 drives the limiting protrusion 8 to be pulled out from the first limiting hole 14, and there is a certain gap between the two slide plates 6 and the first limiting plate 13. At the same time, the two slide plates 6 move relative to each other, and the slide plate 6 pushes the telescopic member 10 to move, thereby reducing the distance between the telescopic member 10 and the vertical plate 9 until the telescopic member 10 can smoothly pass through the second limiting hole 16. Then the upper protective shell 1 can be removed from the lower protective shell 3, which facilitates disassembly. On the contrary, the vertical plate 9 is inserted into the second limiting hole 16. Under the elastic force of the first spring 7, the two slide plates 6 move back to back, so that the limiting protrusion 8 is stuck in the first limiting hole 14. Under the elastic force of the tension spring 11, the telescopic member is stuck under the second limiting plate 15, which makes the upper protective shell 1 and the lower protective shell 2 tightly connected, thereby achieving the effect of convenient disassembly and installation.

[0030] When using the electrical over-current and over-temperature detection device, the upper protective shell 1 and the lower protective shell 2 can be quickly disassembled by squeezing the short rod 14. When installing, it is only necessary to put the vertical plate 9 into the corresponding second limit hole 16. The installation and disassembly are convenient, and auxiliary tools such as bolts and screwdrivers are not needed, which greatly facilitates people's use and maintenance.

[0031] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0032] The standard parts used in the application documents can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt mature conventional means in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art. No specific description is given here. At the same time, the electrical components appearing in this article are all connected to the external main controller and the AC power. The peripheral controller mentioned in the specification can control the electrical components mentioned in this article, and the peripheral controller is a conventional known device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrical overcurrent and overtemperature detection device, comprising a protective shell, the protective shell being divided into two mutually matching upper protective shells (1) and lower protective shells (2), characterized in that: The two side surfaces of the upper protective shell (1) are fixedly connected with a C-shaped mounting plate (3), and the two side surfaces of the C-shaped mounting plate (3) are interspersed with short rods (4). The lower surface of the inner bottom wall of the C-shaped mounting plate (3) is fixedly connected with two slide rails (5), and the insides of the two slide rails (5) are slidably connected with a slide plate (6). The two short rods (4) are respectively fixedly connected with the corresponding slide plates (6). A first spring (7) is fixedly connected between the slide plate (6) and the inner surface of the C-shaped mounting plate (3). The two opposite sides of the two slide plates (6) are fixedly connected with a limiting protrusion (8). The lower surface of the C-shaped mounting plate (3) is fixedly connected with a vertical plate (9), and the left and right sides of the vertical plate (9) are fixedly connected with the vertical plate (9). Both are hinged with a telescopic member (10), a tension spring (11) is fixedly connected between the outer surface of the telescopic member (10) and the outer surface of the vertical plate (9), the two sliding plates (6) are fixedly connected to the opposite sides with a push rod (12), the two side surfaces of the lower protective shell (2) are fixedly connected with two first limiting plates (13), the outer surface of the first limiting plate (13) is provided with a first limiting hole (14), the first limiting hole (14) is consistent with the limiting protrusion (8), the two side surfaces of the lower protective shell (2) are fixedly connected with a second limiting plate (15), the outer surface of the second limiting plate (15) is provided with a second limiting hole (16), the second limiting hole (16) corresponds to the vertical plate (9); The telescopic member (10) comprises a mounting block (1001) with a hollow interior, the mounting block (1001) being hinged to the vertical plate (9), a telescopic rod (1002) being arranged on the outer surface of the mounting block (1001), and a second spring (1003) being fixedly connected between the telescopic rod (1002) and one end of the mounting block (1001); A first roller is provided at one end of the telescopic rod (1002) away from the second spring (1003), and an outer surface of the first roller abuts against the second limiting plate (15); A second roller is fixedly connected to a side of the push rod (12) away from the slide plate (6), and the second roller abuts against the telescopic rod (1002); The angle between the telescopic member (10) and the vertical plate (9) ranges from thirty to sixty degrees.

2. The electrical overcurrent and overtemperature detection device according to claim 1, characterized in that: One end of the telescopic rod (1002) penetrates and extends into the interior of the mounting block (1001) and is originally welded to the second spring (1003); the outer surface of the telescopic rod (1002) is fixedly connected to a limiting block, and the limiting block is located inside the mounting block (1001).

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