R pin plugging device

Abstract

The utility model discloses an R pin plugging device, which adopts the linkage design of a handle and a hook head and realizes the up-and-down movement of the hook head in a sleeve, so that an R pin is directly grabbed or released, the labor intensity of workers is reduced, and the working efficiency is improved. The R pin inserting and pulling device comprises a grab handle, a sleeve is connected to the bottom of the grab handle, a handle is arranged on the upper side of the sleeve in a sleeved mode, a spring is arranged at the end, close to the grab handle, of the inner side of the sleeve, a hook head is arranged at the bottom of the spring, a connecting hole is formed in the end, close to the spring, of the hook head, and the hook head and the handle are connected through the connecting hole. A sliding groove is formed in the sleeve, and the handle can move up and down along the sliding groove. The bottom of the sleeve is in threaded connection with an adapter, and the end, away from the spring, of the hook head extends downwards to the outer side of the bottom of the adapter.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power maintenance tools, in particular to an R-pin plugging and unplugging tool. Background Art

[0002] During the operation of power equipment, regular maintenance and inspection are required, and disassembly and assembly are one of the common maintenance tasks. As a key component for connecting or fixing parts, the R-pin plays an important role in the disassembly and assembly process. The R-pin (also known as a positioning pin, safety pin or locking pin) is widely used in various power equipment, such as switch cabinets, transformers, circuit breakers, etc., and its main function is to ensure the stability and safety of the equipment. However, the traditional method of disassembling and assembling the R-pin usually uses a simple hook or pliers to directly pick it up, and the installation of the R-pin is manual, which causes many problems:

[0003] 1. Laborious: Using a hook to directly pull out the R-pin may require a lot of strength, increasing the labor intensity of the staff; manually installing the R-pin may require certain skills and time, especially in the case of frequent replacement or installation of the R-pin. A dedicated tool can simplify the operation process, reduce the installation time and improve work efficiency.

[0004] 2. Prone to loss: The R-pin is easily dropped during the pulling-out process, especially when working at high altitudes or in narrow spaces. Once lost, it will affect the progress of the maintenance work.

[0005] 3. Difficult to replace: It is not easy to find a suitable pin for replacement on site, which may cause the equipment to not be restored to operation in time.

[0006] In order to improve the safety and efficiency of power equipment maintenance, reduce the labor intensity of the staff and the equipment maintenance time, it is necessary to design a dedicated R-pin plugging and unplugging tool, so as to reduce equipment failures and maintenance costs caused by R-pin problems. Content of the Utility Model

[0007] The technical problem to be solved by the utility model is to disclose an R-pin plugging and unplugging tool in view of the deficiencies in the above-mentioned prior art. The tool adopts a linkage design of a handle and a hook head, and realizes the up and down movement of the hook head in the sleeve, so as to directly grab or release the R-pin, reducing the labor intensity of the staff and improving work efficiency.

[0008] The technical solution adopted by the utility model to solve its technical problems is: an R-pin plugging and unplugging tool, including a handle, the bottom of the handle is connected with a sleeve, a handgrip is sleeved on the upper side of the sleeve, a spring is arranged at one end of the inner side of the sleeve close to the handle, a hook head is arranged at the bottom of the spring, a connection hole is opened at one end of the hook head close to the spring, and the connection hole is used for connecting the hook head and the handgrip. A chute is opened on the sleeve, and the handgrip can move up and down along the chute;

[0009] The bottom of the sleeve is threadedly connected to a conversion head, and the end of the hook head away from the spring extends downward to the outside of the bottom of the conversion head.

[0010] As a preferred embodiment of the present invention, a through first opening is provided at the bottom of the sleeve, and the inner diameter of the sleeve is 8 - 10 mm.

[0011] As a preferred embodiment of the present invention, the conversion head includes a locking screw, a second opening, and an inner protrusion. The top of the conversion head is provided with an internal thread and is threadedly connected to the bottom of the sleeve. The conversion head is penetrated and installed with a locking screw. The bottom of the conversion head is respectively provided with a through second opening and an inner protrusion. The length of the second opening is greater than that of the first opening, and their widths are the same. The bottom of the conversion head extends to the outside of the bottom of the sleeve.

[0012] As a preferred embodiment of the present invention, the original length of the spring is 70 - 80 mm, and its compression stroke is twice the original length of the spring.

[0013] As a preferred embodiment of the present invention, the length of the chute is 35 - 40 mm.

[0014] As a preferred embodiment of the present invention, the handgrip is a gun-shaped handgrip, and the gun-shaped handgrip is provided with anti-slip lines.

[0015] As a preferred embodiment of the present invention, a hanging hole is opened on one side of the handle.

[0016] As a preferred embodiment of the present invention, weight-reducing holes are also provided on the handle.

[0017] As a preferred embodiment of the present invention, the length of the sleeve is 120 - 150 mm.

[0018] The present invention has the following advantages compared with the prior art:

[0019] The R-pin inserter designed by the present invention is a special tool. The R-pin inserter innovatively adopts the linkage design of the handgrip and the hook head, and realizes the up and down movement of the hook head in the sleeve easily, so as to directly and efficiently grab or release the R-pin. This design significantly reduces the labor intensity of the staff, because there is no need to directly operate the R-pin manually, reducing the complexity and physical requirements of the operation. At the same time, because the insertion and extraction process is smoother and more efficient, it also greatly shortens the time required for equipment maintenance and R-pin replacement, improving the work efficiency and the operation efficiency of the overall production line;

[0020] Among them, the handle is the main part of the entire plug-in tool. The entire tool is operated by holding it. The design of the handle should take into account ergonomics to facilitate long-term use without easy fatigue. The handgrip is sleeved on the upper side of the sleeve and connected to the sleeve through a chute, enabling the handgrip to move up and down along the chute. The up and down movement of the handgrip is used to control the telescoping of the hook head inside the sleeve, thereby realizing the grasping or releasing of the R-pin. The sleeve is connected to the bottom of the handle and is the carrier of the handgrip and the internal mechanical structure (such as springs and hook heads). The chute opened on the sleeve allows the handgrip to drive the hook head to slide up and down. The bottom of the sleeve is designed with threads for threaded connection with the adapter. The spring is located at one end of the sleeve close to the handle inside. Its function is to provide elastic force so that the hook head can automatically reset when not under external force. When the handgrip is pinched, the spring is compressed and the hook head retracts upward into the sleeve; when the handgrip is released, the spring releases energy and pushes the hook head out; one end of the hook head is connected to the handgrip through a connection hole, and the other end extends downward to the outside of the bottom of the adapter to contact the R-pin. The adapter is threadedly connected to the bottom of the sleeve. Function conversion can be achieved by screwing the adapter. When the adapter is adjusted to cover the first opening, this tool is used to insert the R-pin;

[0021] Overall, the design of this R-pin plug-in tool aims to provide an efficient, safe and easy-to-operate tool to enable the quick and accurate installation or removal of R-pins, prevent the loss of R-pins. This tool can reduce the inconvenience of manual operation, improve work efficiency, and at the same time reduce the safety risks during the operation process. Brief Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of a specific embodiment of the present utility model;

[0023] Figure 2 is Figure 1 a partial structural schematic diagram of;

[0024] Figure 3 is Figure 1 a sectional structural schematic diagram of;

[0025] Figure 4 is a structural schematic diagram of the adapter.

[0026] Description of the Reference Numerals in the Drawings:

[0027] 1. Handle, 2. Handgrip, 3. Sleeve, 4. Hook head, 5. Spring, 6. Connection hole, 7. Hanging hole, 8. First opening, 9. Adapter, 10. Weight-reducing hole;

[0028] 9-1. Locking screw; 9-2. Second opening. Specific Embodiment

[0029] The following describes the specific embodiments of the present utility model in conjunction with the drawings and embodiments:

[0030] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the implementation conditions of the present utility model. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

[0031] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0032] As Figures 1 to 4 shown, it shows the specific implementation manners of the present utility model; as Figures 1 to 4 shown, a kind of R-pin plugger disclosed by the present utility model includes a handle 1. A sleeve 3 is connected to the bottom of the handle 1. A handgrip 2 is sleeved on the upper side of the sleeve 3. A spring 5 is arranged at one end of the inner side of the sleeve 3 close to the handle 1. A hook head 4 is arranged at the bottom of the spring 5. A connection hole 6 is opened at one end of the hook head 4 close to the spring 5. The connection hole 6 is used for connecting the hook head 4 and the handgrip 2. A chute is opened on the sleeve 3, and the handgrip 2 can move up and down along the chute;

[0033] The bottom of the sleeve 3 is threadedly connected with a conversion head 9. One end of the hook head 4 far from the spring 5 extends downward to the outer side of the bottom of the conversion head 9.

[0034] Preferably, as Figure 2 shown, a through first opening 8 is arranged at the bottom of the sleeve 3, and the inner diameter of the sleeve 3 is 8 - 10 mm.

[0035] In the design of the R-pin plugger of the present utility model, a through first opening is arranged at the bottom of the sleeve, and the inner diameter of the sleeve is 8 - 10 mm.

[0036] 1. The first opening is set at the bottom of the sleeve, mainly for the pin extraction design. When extracting the pin, first press the bottom of the adapter against the gasket or the component near the R-pin to ensure stability. Then, use the handle to control the hook to hook the R-pin. Finally, pinch the handle and use the hook at the bottom of the hook to fix the R-pin and pull out the R-pin. The hook design at the bottom of the hook plays a role in fixing the R-pin during the pin extraction process, preventing the R-pin from falling during the extraction process. The design of the first opening facilitates the removal of the R-pin. The length of the first opening is designed to be as consistent as possible with the length of the R-pin. The consistent length design enables the R-pin to smoothly pass through the opening when being pulled out, improving the efficiency and success rate of pin extraction.

[0037] 2. Inner diameter of the sleeve (8 - 10 mm)

[0038] The inner diameter of the sleeve is designed to be 8 - 10 mm. This size range is to adapt to R-pins of different diameters. Such a design makes the tool have good versatility and can be applicable to various specifications of R-pins. For example, if the diameter of the R-pin is 7 mm, then the 8 - 10 mm inner diameter can ensure enough space for the hook 4 to move freely inside the sleeve while grasping and pulling out the R-pin.

[0039] In summary, the design of the first opening at the bottom of the sleeve and the inner diameter of 8 - 10 mm is to ensure that the R-pin extractor can effectively and safely pull out R-pins of different specifications. This design takes into account the versatility of the tool, the convenience of operation, and the stability of the structure.

[0040] Preferably, as Figure 1 、 Figure 4 shown, the adapter 9 includes a locking screw 9-1, a second opening 9-2, and an inner protrusion. The top of the adapter 9 is provided with an internal thread and is threadedly connected to the bottom of the sleeve 3. The locking screw 9-1 is installed through the adapter 9. The bottom of the adapter 9 is respectively provided with a through second opening 9-2 and an inner protrusion. The length of the second opening 9-2 is greater than that of the first opening 8, and their widths are the same. The bottom of the adapter 9 extends to the outside of the bottom of the sleeve 3.

[0041] The adapter mainly plays a function conversion role in the R-pin extractor, realizing the dual functions of pin extraction and R-pin installation.

[0042] 1. Locking screw

[0043] When the adapter is screwed to achieve function conversion, the locking screw mainly plays a fixing role. When the function needs to be converted, loosen the locking screw for conversion, and tighten the locking screw after the conversion is completed.

[0044] 2. Second opening

[0045] Position: The second opening is set at the bottom of the adapter and corresponds to the first opening.

[0046] Dimensions: The length of the second opening is greater than that of the first opening, but the widths are the same. Such a design allows the R-pin to pass through in different operating modes.

[0047] Function: When the positions of the first opening and the second opening correspond, it is applicable to the pin-pulling operation; when the positions are offset, it is applicable to installing the R-pin.

[0048] 3. Inner protrusion

[0049] Position: The inner protrusion is provided inside the adapter, near the bottom.

[0050] Function: During the installation of the R-pin, the inner protrusion is used to squeeze both sides of the bottom of the R-pin to ensure that the R-pin can be firmly fixed in place.

[0051] Working principle: Pin-pulling mode: Adjust the adapter to the position where the first opening and the second opening correspond. The hook head hooks the R-pin, and the R-pin is taken out through the opening to achieve the function of pin-pulling.

[0052] Installation mode: Adjust the adapter to the position where the first opening and the second opening are offset. The hook head hooks the R-pin, guides the R-pin into the adapter, uses the inner protrusion to squeeze the bottom of the R-pin, and then releases the handle to complete the installation of the R-pin.

[0053] In summary, the design of the adapter enables the R-pin inserter to flexibly switch between pin-pulling and installing the R-pin, improving the versatility and practicality of the tool. Through the carefully designed locking screw, opening, and inner protrusion, the adapter ensures the stability and reliability of the operation.

[0054] Preferably, as Figure 3 shown, the original length of the spring 5 is 70 - 80 mm, and its compression stroke is twice the original length of the spring 5.

[0055] In the present utility model, the design parameters and functions of the spring are mainly considered in view of the R-pin specifications commonly used in electrical equipment. The original length of the spring refers to the natural length of the spring when no external force is applied. Considering that the commonly used R-pin specifications in electrical equipment are 30 - 35 mm, the design of the spring must be able to adapt to this size range. The compression stroke of the spring must be long enough to ensure that regardless of the specific size of the R-pin, it can be completely hooked into the sleeve. By ensuring that the compression stroke of the spring can completely cover the length of the R-pin, the operation efficiency and safety can be improved. This reduces the risk of slipping or falling during the extraction or installation of the R-pin.

[0056] During the operation, when the handle is pinched, the spring will be compressed, and the hook head will move accordingly to hook the R-pin. When the handle is released, the elasticity of the spring will cause the hook head to return to the original position.

[0057] In summary, the design parameters and functions of the spring 5 are to ensure that the R-pin inserter can effectively handle the R-pin specifications commonly used in electrical equipment. Through the carefully designed uncompressed length and compression stroke, the spring not only provides the necessary force and stability, but also improves the operating efficiency and safety of the tool.

[0058] Preferably, the length of the chute is 35 - 40 mm.

[0059] The length of the chute determines the range of movement of the handle driving the hook head within the sleeve. This length range is to ensure that the handle has sufficient space within the sleeve to contract and extend to accommodate R-pins of different sizes. The length of the chute needs to match the specifications of the R-pin. Considering that the commonly used R-pin specifications in electrical equipment are 30 - 35 mm, the length of the chute should be long enough to ensure that the hook head can fully extend out of the sleeve to grasp and operate the R-pin.

[0060] During use, when the handle moves upward along the chute, the hook head will contract towards the inside of the sleeve. This action is usually used to prepare for grasping the R-pin or retracting the hook head after pulling out the R-pin. When the handle moves downward along the chute, the hook head will extend out from the inside of the sleeve. This action is used to position the hook head at the location of the R-pin for installation operations.

[0061] By ensuring that the length of the chute matches the R-pin specifications, the operating efficiency can be improved. The hook head can more easily grasp the R-pin, reducing the additional adjustments that may be required during the operation.

[0062] In summary, the length design of the chute is to ensure that the handle and the hook head have sufficient movement range within the sleeve to accommodate the R-pin specifications commonly used in electrical equipment. Through the carefully designed chute length, the operating efficiency and flexibility of the R-pin inserter can be improved.

[0063] Preferably, as Figures 1 to 3 shown, the handle 2 is a pistol-shaped handle, and the pistol-shaped handle is provided with anti-slip patterns.

[0064] The pistol-shaped handle mimics the shape of a pistol grip, providing a comfortable and firm gripping experience. In the R-pin inserter, the handle is designed as a pistol-shaped handle to adapt to the hand shapes and gripping habits of most people. This design allows users to remain comfortable even during long-term use of the tool. They can easily squeeze the handle to control the extension and contraction of the hook head for pulling out and installing the R-pin. The anti-slip patterns provided on the handle can increase the friction between the hand and the handle. When operating the R-pin inserter, the anti-slip patterns help prevent the handle from slipping, thus improving the operating safety.

[0065] In the R-pin inserter, this handle design helps improve the work efficiency and operating precision.

[0066] Preferably, asFigures 1 to 3 As shown, a hanging hole 7 is provided on one side of the handle 1.

[0067] In the design of the R-pin inserter / extractor, providing a hanging hole on one side of the handle is a practical design. The main purpose is to facilitate the user to carry and store the tool.

[0068] Portability: The hanging hole allows the R-pin inserter / extractor to be hung on a belt, tool belt or other convenient places through a hanging rope. This design makes the tool easy to carry, and the user can quickly access it, improving work efficiency.

[0069] Preventing loss: The hanging rope can reduce the risk of the tool being forgotten or lost at the workplace, ensuring that the tool is always within the user's sight.

[0070] Preferably, as Figures 1 to 3 shown, a weight-reducing hole 10 is also provided on the handle 1.

[0071] By providing a weight-reducing hole on the handle, the overall weight of the tool can be reduced, making it lighter and easier to carry and operate.

[0072] Preferably, the length of the sleeve 3 is 120 - 150 mm.

[0073] The length design of the sleeve needs to consider multiple factors, including the size of the spring, the stroke of the hook head, and the size of the R-pin;

[0074] 1. Spring size

[0075] Compression space: The spring needs sufficient space for compression and extension to ensure that it can provide stable force during operation. The length of the sleeve must be able to accommodate the uncompressed length and compression stroke of the spring. The compression and release actions of the spring need to be carried out smoothly within the sleeve to ensure that the hook head can accurately grasp or release the R-pin.

[0076] 2. Hook head stroke:

[0077] Telescopic range: The hook head needs sufficient stroke within the sleeve to achieve effective grasping and releasing of the R-pin. The length of the sleeve must be able to meet the movement requirements of the hook head from the innermost to the outermost position.

[0078] 3. R-pin size:

[0079] Adaptability: The length of the sleeve needs to be able to adapt to different sizes of R-pins. Especially considering that the commonly used R-pin specifications in electrical equipment are 30 - 35 mm. The length of the sleeve must be able to accommodate these sizes of R-pins and provide sufficient operating space for the hook head. When pulling out or installing the R-pin, the length of the sleeve needs to ensure that the hook head can firmly grasp the R-pin to prevent the R-pin from falling off or slipping out during operation.

[0080] In summary, the length design of the sleeve needs to comprehensively consider multiple factors such as the spring size, the hook head stroke, the size of the R-pin, as well as the overall design, manufacturing, and cost of the tool, and user requirements. By considering multiple factors, it can be ensured that the R-pin inserter not only meets the functional requirements but also has a good operation experience and economy.

[0081] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

[0082] Many other changes and modifications can be made without departing from the concept and scope of the present invention. It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. An R-pin plug-in / pull-out device, characterized in that: The invention comprises a handle (1), the bottom of the handle (1) is connected to a sleeve (3), the upper side of the sleeve (3) is sleeved with a handle (2), the inner side of the sleeve (3) is provided with a spring (5) close to one end of the handle (1), the bottom of the spring (5) is provided with a hook head (4), the hook head (4) is provided with a connecting hole (6) close to one end of the spring (5), the connecting hole (6) is used to connect the hook head (4) with the handle (2), the sleeve (3) is provided with a slide groove, and the handle (2) can move up and down along the slide groove; The bottom of the sleeve (3) is threadedly connected to the conversion head (9), and the hook head (4) extends downward from one end of the spring (5) to the outside of the bottom of the conversion head (9).

2. An R-pin plug-in and pull-out device as claimed in claim 1, characterized in that: A first opening (8) is provided at the bottom of the sleeve (3), and the inner diameter of the sleeve (3) is 8 to 10 mm.

3. An R-pin plug-in and pull-out device as claimed in claim 2, characterized in that: The conversion head (9) comprises a locking screw (9-1), a second opening (9-2) and an inner protrusion; an inner thread is arranged at the top of the conversion head (9) and is threadedly connected to the bottom of the sleeve (3); a locking screw (9-1) is installed through the conversion head (9); a second opening (9-2) and an inner protrusion are respectively arranged through the bottom of the conversion head (9); the second opening (9-2) is longer than the first opening (8) and has the same width; the bottom of the conversion head (9) extends to the outside of the bottom of the sleeve (3).

4. An R-pin plug-in and pull-out device as claimed in claim 2 or 3, characterized in that: The original length of the spring (5) is 70-80 mm, and its compression stroke is twice the original length of the spring (5).

5. An R-pin plug-in and pull-out device as claimed in claim 4, characterized in that: The length of the slide groove is 35-40 mm.

6. An R-pin plug-in and pull-out device as claimed in claim 5, characterized in that: The handle (2) is a gun-shaped handle, and anti-slip patterns are provided on the gun-shaped handle.

7. An R-pin plug-in and pull-out device as claimed in claim 6, characterized in that: A hanging hole (7) is provided on one side of the handle (1).

8. An R-pin plug-in and pull-out device as claimed in claim 1, characterized in that: The handle (1) is also provided with a weight-reducing hole (10).

9. An R-pin plug-in and pull-out device as claimed in claim 1, characterized in that: The length of the sleeve (3) is 120-150 mm.

Images