Plug-in type quick fuse push-in device

Abstract

The utility model discloses a plug-in type quick fuse push-in device which comprises a handle, a push rod and a plug-in end. The inserting end is provided with a C-shaped clamping groove and a C-shaped rubber pad, the protective tube is fixed through the C-shaped clamping groove and the elastic rubber pad, synchronous force application at the two ends is achieved in combination with the parallel push rod, the protective tube can be clamped, it is guaranteed that the two ends of the protective tube are synchronously inserted into the tube base, and single-side stress fracture is avoided. The length of the push rod is adjustable to adapt to different installation distances. The quick push-in device for the plug-in fuse is compact in structure and convenient to operate, the fracture rate of the fuse tube is remarkably reduced, and the installation efficiency and reliability are improved. The device is compatible with a protective tube with the diameter of 5mm-10mm and a protective tube seat with the diameter of 20mm-80mm, and has the advantages of high efficiency, universality and high protectiveness.

Description

Technical Field

[0001] This utility model belongs to the field of electrical assembly tool technology, specifically relating to a quick-insertion device for inserting safety devices. Background Technology

[0002] In current electrical assemblies, fuses are ubiquitous. Commonly used fuse holders are U-shaped with closed ends, and fuse tubes and fuse clips are typically inserted by insertion. Current fuse installation methods are manual. During installation, because the fuse holder base is tight, a flathead screwdriver is needed to pry open the clamps of the fuse holder base. One end of the fuse tube is inserted first, and then the other end is inserted in the same way. This results in uneven force on both ends of the fuse tube, easily causing the fuse glass to crack, leading to a high rate of fuse failure. Furthermore, excessive force when prying the fuse holder with a flathead screwdriver can deform the clamps at both ends of the holder, causing them to lose their clamping function, increasing material costs, and making quality control difficult. In addition, this method is cumbersome, inefficient, requires highly skilled operators, and makes quality standardization difficult.

[0003] In view of this, there is an urgent need in the field for an installation tool that can reduce the fuse breakage rate, provide strong protection, and be highly efficient and versatile. Utility Model Content

[0004] To overcome the aforementioned problems in the prior art, the purpose of this utility model is to provide an insert-type quick-insertion device for fuses. Through a composite design of C-type clamping structure, elastic buffer, and parallel insertion, it is particularly suitable for the installation of fuse tubes (Φ5mm-Φ10mm) and fuse holders (Φ20mm-Φ80mm) of different sizes, so as to solve problems such as uneven force on both ends during the installation process, breakage of the glass surface of the fuse tube, deformation of the clamp ends of the tube holder, and poor compatibility.

[0005] To achieve the above objectives, this utility model provides an insertable safety quick-insertion device, which includes:

[0006] The handle is of a length suitable for human grip.

[0007] The push rod has one end connected to the handle and the other end connected to the insertion end, and its length is adapted to the installation distance.

[0008] The insertion end is set parallel to the handle and includes a C-shaped slot and a C-shaped rubber pad embedded in the inner wall of the C-shaped slot. The width of the open end of the C-shaped slot is adapted to the diameter of the fuse tube, and the inner diameter of the closed end is adapted to the outer diameter of the fuse tube seat.

[0009] Furthermore, the push rod is a telescopic structure.

[0010] Furthermore, the length adjustment range of the push rod is 200-500mm.

[0011] Furthermore, the width of the open end of the C-shaped slot is 5-10mm, and the inner diameter of the closed end is adapted to a safety seat of Φ20mm-Φ80mm.

[0012] Furthermore, the C-type rubber pad has a thickness of 1-4 mm and a Shore hardness of 30-60 A.

[0013] Furthermore, the open end of the C-shaped slot is provided with a guide slope.

[0014] Furthermore, the inclination angle of the guide ramp is 10° to 15°.

[0015] Furthermore, the C-type rubber pad is made of silicone rubber or fluororubber.

[0016] Furthermore, the surface of the C-shaped rubber pad is provided with anti-slip texture.

[0017] Furthermore, a pressure sensor is provided in the middle of the push rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1) The insertion end of this utility model device is parallel to the end face of the fuse holder. When pushed in, the metal contacts at both ends are inserted simultaneously, avoiding stress concentration on one side that could lead to breakage, thus reducing the fuse breakage rate to below 5%.

[0020] 2) The anti-drop design of the C-shaped slot and rubber pad combination of this utility model device can realize the quick insertion and stable clamping of the fuse.

[0021] 3) This utility model device is highly versatile and can be used with Φ5mm-Φ10mm fuses and Φ20mm-Φ80mm fuse holders, covering mainstream specifications.

[0022] 4) The operation efficiency of this utility model device is improved, with a single installation time of ≤30 seconds and an efficiency increase of 6-10 times.

[0023] 5) This utility model device provides pipe seat protection, and the limiting block and elastic rubber pad prevent deformation of the clamp and extend the life of the safety seat. It combines adaptability, protection and high efficiency.

[0024] 6) The plug-in safety quick-push device of this utility model has a simple and compact structure, small size and light weight, which can meet the needs of carrying and operation. The length of the push rod can be selected and processed according to the usage distance. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the structure of an insertable safety quick-insertion device provided in one embodiment of the present invention.

[0026] Figure 2 yes Figure 1 A schematic diagram of the left-side structure of the device shown.

[0027] Figure 3 yes Figure 1 A schematic diagram of the front view structure of the device shown.

[0028] Figure 4 This is a schematic diagram of the structure of a quick-insertion plug-in safety device provided in another embodiment of the present invention.

[0029] Among them, 1-handle; 2-push rod; 3-insertion end; 4-C-type slot; 5-C-type rubber pad; 6-pressure sensor. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] In the description of this utility model, it should be noted that the terms "center", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or 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 utility model.

[0032] This utility model embodiment provides an insert-type quick-insertion safety device, such as... Figure 1 As shown, it includes a handle 1, a push rod 2, and an insertion end 3.

[0033] Handle 1, its length is suitable for manual gripping, and an insulating sleeve can be set on the outer surface to facilitate force application and prevent slipping; the material can be stainless steel or ABS engineering plastic.

[0034] The push rod 2 is threaded to the handle 1 and the insertion end 3 at both ends, and its length can be adapted to the installation distance. The material can be stainless steel.

[0035] The insertion end 3 is parallel to the handle 1 and includes a C-shaped slot 4 and a C-shaped rubber pad 5. The width of the open end of the C-shaped slot 4 is adapted to the diameter of the fuse, preferably Φ5mm to Φ10mm, and the inner diameter of the closed end is preferably adapted to the outer diameter of the fuse holder, Φ20mm to Φ80mm. The C-shaped rubber pad 5 is embedded in the inner wall of the C-shaped slot 4 to elastically hold the fuse and prevent it from falling out during installation. The insertion end 3 ensures that the insertable fuse can be freely inserted and will not fall out during installation, protecting the fuse from breakage. The handle 1 is parallel to the insertion end 3, and the insertion end 3 is parallel to the end face of the insertable fuse. A parallel metal push-in method is used to ensure that the metal parts at both ends of the fuse are inserted simultaneously, and the method of simultaneous force application improves the fuse breakage caused by uneven force on both ends.

[0036] In some embodiments, the push rod 2 is a telescopic structure with an adjustable length to accommodate different installation distances, preferably 200-500mm, to ensure that the handle and the safety tube are strictly parallel during operation (tolerance ±1°).

[0037] In some embodiments, the open end of the C-shaped slot 4 is provided with a guide slope to facilitate quick insertion of the fuse. The inclination angle of the guide slope is preferably 10° to 15°. The C-shaped slot 4 ensures that the insertable fuse can be freely inserted and will not fall out during installation.

[0038] In some embodiments, the C-type rubber pad 5 is made of silicone rubber or fluororubber, with a thickness of 1-4 mm and a Shore hardness of 30-60A. It forms an interference fit with the fuse with a compression amount of 0.5-1 mm to prevent slippage during installation. The C-type rubber pad 5 ensures a tight fit between the insertable fuse and the C-type slot, preventing loosening and protecting the fuse from breakage during installation. Preferably, the surface of the C-type rubber pad 5 is provided with anti-slip texture.

[0039] In some embodiments, such as Figure 4 As shown, push rod 2 is a telescopic structure with a pressure sensor in its middle to indicate the operating force, so as to avoid excessive force.

[0040] See Figure 1 The working principle of the plug-in type quick-insertion device of this utility model is as follows:

[0041] The quick-release insert device for the fuse can be used to laterally insert the fuse holder into the opening of the C-shaped slot 4 at the insertion end 3, according to actual operational needs. The rubber pad 5 provides elastic support to compress and fix the fuse, keeping the insertion end 3 and the mounting surface of the fuse holder horizontal and parallel. Ensure that the contacts at both ends of the fuse are aligned. Hold the handle 1 with one or both hands and apply pressure evenly along the axial direction to push the fuse into the holder simultaneously. After installation, remove the quick-release insert device laterally from the fuse holder to complete the operation.

[0042] This utility model's plug-in fuse quick-insertion device adopts a parallel metal-insertion method, ensuring that the metal parts at both ends of the fuse are inserted simultaneously and subjected to force at the same time, thus improving the fuse's resistance to breakage caused by uneven force distribution at both ends. The fuse is securely and reliably fixed and will not be subject to external pulling forces. It has few limitations in use, is simple to operate, and is convenient to carry, making it ideal for field operations.

[0043] It should be noted that the above-described embodiments are merely preferred embodiments of this utility model. For those skilled in the art, various modifications, improvements, and equivalent substitutions can be made to this utility model without departing from its principles, and such modifications, improvements, and equivalent substitutions are also considered to fall within the protection scope of the claims of this utility model.

Claims

1. A quick-insertion plug-in safety device, characterized in that, include: The handle (1) is of a length suitable for manual gripping; The push rod (2) is connected to the handle (1) at one end and to the insertion end (3) at the other end, and its length is adapted to the installation distance. The insertion end (3) is set parallel to the handle (1) and includes a C-shaped slot (4) and a C-shaped rubber pad (5) embedded in the inner wall of the C-shaped slot (4). The width of the opening end of the C-shaped slot (4) is adapted to the diameter of the fuse tube, and the inner diameter of the closed end is adapted to the outer diameter of the fuse tube seat.

2. The insert-type quick-release safety device according to claim 1, characterized in that, The push rod (2) is a telescopic structure.

3. The insert-type quick-release safety device according to claim 2, characterized in that, The length adjustment range of the push rod (2) is 200-500mm.

4. The insert-type quick-release safety device according to claim 1, characterized in that, The width of the open end of the C-type slot (4) is 5-10mm, and the inner diameter of the closed end is adapted to a safety seat of Φ20mm-Φ80mm.

5. The insert-type quick-release safety device according to claim 1, characterized in that, The C-type rubber pad (5) has a thickness of 1-4 mm and a Shore hardness of 30-60 A.

6. The insertable safety quick-insertion device according to claim 1, characterized in that, The opening end of the C-shaped slot (4) is provided with a guide slope.

7. The insert-type quick-release safety device according to claim 6, characterized in that, The inclination angle of the guide ramp is 10° to 15°.

8. The insertable safety quick-insertion device according to claim 1, characterized in that, The C-type rubber pad (5) is made of silicone rubber or fluororubber.

9. The insert-type quick-release safety device according to claim 1, characterized in that, The surface of the C-type rubber pad (5) is provided with anti-slip texture.

10. The insert-type quick-release safety device according to claim 1, characterized in that, A pressure sensor (6) is provided in the middle of the push rod (2).

Images