CN203791953U - Straight pin mounting and demounting tool - Google Patents

Abstract

The utility model discloses a cylindrical pin loading and unloading tool, which comprises a straight rod (1). The straight rod (1) is divided into two parts: an external thread section at the upper end and a smooth section at the lower end. The external thread section of the straight rod (1) Screw the fixed circular plate (3), the smooth section of the straight rod (1) passes through the middle of the bottom plate (7) and then connects the three-jaw chuck (8), between the fixed circular plate (3) and the bottom plate (7) There is also an impact block (4) and a spring (6) set on the straight rod (1) between them, the lower end of the spring (6) is fixed on the upper surface of the bottom plate (7), and the upper end of the spring (6) is in contact with the impact The block (4) is fixedly connected, and the impact block (4) can move axially along the straight rod (1). The cylindrical pin loading and unloading tool designed by the utility model not only has a simple structure, is convenient to carry and use, but also can well carry out cylindrical pin loading and unloading and protect the cylindrical pin, and is safe, reliable, and practical.

Description

A straight pin loading and unloading tool

technical field

The utility model relates to an auxiliary device for electric power maintenance, in particular to a cylindrical pin loading and unloading tool.

Background technique

Outdoor electrical equipment such as control cabinets, transformers, control switches, etc. need regular maintenance, and often carry out fault repairs. During maintenance, some equipment needs to remove positioning parts, fixing parts, control switches, etc. before they can work. When some positioning parts , fixed parts, etc. are connected and fixed by straight pins, it is relatively troublesome to remove, due to the influence of outdoor environment, the straight pins and equipment are easy to rust, and it is difficult to separate the straight pins from other parts when they are removed. When the tool is polished, it is easy to make the top of the cylindrical pin expand or bend under pressure, which further increases the difficulty of disassembling the cylindrical pin, and is also easy to damage the maintenance parts, which affects the maintenance progress and work efficiency.

Contents of utility model

The utility model overcomes the deficiencies of the prior art, provides a cylindrical pin loading and unloading tool, and solves the problems that the conventional tools are troublesome and easy to damage the cylindrical pin when dismantling the cylindrical pin.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions: a cylindrical pin loading and unloading tool, including a straight rod, the straight rod is divided into two parts, the external thread section at the upper end and the smooth section at the lower end, the external thread of the straight rod The segment is threaded to connect the fixed circular plate, and the smooth section of the straight rod passes through the middle of the bottom plate to connect with the three-jaw chuck. Between the fixed circular plate and the bottom plate, an impact block and a spring are set on the straight rod. The lower end of the spring is fixed on the upper surface of the bottom plate, the upper end of the spring is fixedly connected with the impact block, and the impact block can move axially along the straight rod. When using this solution, first rotate the fixed circular plate to press the impact block and the spring, and the spring is in a semi-compressed state. After clamping the three-jaw chuck and the cylindrical pin, the staff presses the bottom plate with one hand, and the The impact block is pressed down so that the spring is in a fully compressed state, and then the hand is released so that the impact block moves up quickly under the tension of the spring and hits the fixed circular plate. After the fixed circular plate is hit, it drives the straight rod to move upward, thereby driving the cylindrical pin to move upward. The cylindrical pin can be pulled out after repeating several times; this tool can also be used when the cylindrical pin needs to be tightened again after the inspection is completed. The tool can be turned upside down, and the fixed circular plate can be rotated so that the spring is in a proper compression state. The end of the external thread end corresponds to the top of the cylindrical pin. The staff holds the fixed circular plate with one hand, and presses the impact block with the other hand so that the spring is fully compressed and then released. The impact block moves down under the spring tension and hits the fixed circular plate. , so that the cylindrical pin is slowly tightened like a hammer; the structure of this scheme is simple, convenient and fast to use, and the spring force can be adjusted according to the situation. It reduces the maintenance, reduces the difficulty of loading and unloading the straight pin and saves the loading and unloading time of the straight pin, and the practicability is greatly improved.

The circumferential surface of the fixed circular plate is provided with knurling. When the tool is in use, the vertical height of the fixed circular plate will be adjusted according to the specific situation to meet the different compression conditions of the spring, so the staff needs to frequently rotate the fixed circular plate to adjust, because the staff generally have oil stains on their hands or gloves , is relatively smooth, and it is more laborious to rotate the fixed circular plate. Therefore, a textured knurling is arranged on the circumferential surface of the fixed circular plate to strengthen its friction with the hand and facilitate rotation.

The straight rod is also equipped with a locking nut on the upper end of the fixed circular plate. The locking nut can fix the fixed circular plate, prevent it from moving up and down to affect the removal of the cylindrical pin during impact, and also reduce the impact force on the fixed circular plate and protect the threads of the fixed circular plate and the straight rod.

The upper end of the impact block is provided with an impact ring, and two horizontal pressure columns are evenly distributed on the circumferential surface of the impact ring. Since the worker needs to press and fix the circular plate or the bottom plate with one hand when using the tool, and only one hand is used to compress the spring, a larger force is required when the spring is compressed, while the impact block in the past is just a sleeve with a cylindrical structure , it is extremely inconvenient to use the hand, and the hand is easy to slip, so an impact ring is set on the upper end of the impact block, and there are two horizontal pressure columns evenly distributed on the circumference of the impact ring. When the staff compresses the spring, they can use their thumbs to press on the horizontal The pressure column is convenient to apply force and is not easy to slip, which is extremely practical.

The three-jaw chuck is screwed or pinned to the straight rod. In order to be suitable for cylindrical pins of different diameters, it is convenient to replace the three-jaw chuck, and it can also prevent the tool from being unusable and scrapped after the three-jaw chuck is damaged. The three-jaw chuck and the straight rod are threaded or pinned. connection for easy disassembly of the three-jaw chuck.

Compared with the prior art, the beneficial effect of the utility model is that the cylindrical pin loading and unloading tool designed by the utility model is not only simple in structure, convenient to carry and use, but also can carry out loading and unloading of the cylindrical pin and protect the cylindrical pin well, Safe, reliable and practical.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.

Fig. 1 is the structural representation of the utility model.

The labels in the figure are: 1, straight rod; 2, lock nut; 3, fixed circular plate; 4, impact block; 5, horizontal pressure column; 6, spring; 7, bottom plate; 8, three-jaw chuck.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described. Embodiments of the present utility model include but are not limited to the following examples.

Example 1

A cylindrical pin loading and unloading tool as shown in Figure 1, including a straight rod 1, the straight rod 1 is divided into two parts: an external thread section at the upper end and a smooth section at the lower end, and the external thread section of the straight rod 1 is threaded to connect a fixed circular plate 3. The smooth section of the straight rod 1 passes through the middle of the bottom plate 7 and then connects the three-jaw chuck 8, and an impact block 4 and a spring set on the straight rod 1 are also arranged between the fixed circular plate 3 and the bottom plate 7 6. The lower end of the spring 6 is fixed on the upper surface of the bottom plate 7 , the upper end of the spring 6 is fixedly connected with the impact block 4 , and the impact block 4 can move axially along the straight rod 1 .

In this embodiment, when the tool is used, the fixed circular plate 3 is rotated in advance to compress the spring to a suitable position to ensure that the spring can be compressed again, and the three-jaw chuck 8 is matched with the cylindrical pin and clamped tightly, and the staff stabilizes the bottom plate with one hand 7. With the other hand, press down the spring completely to make it fully compressed and then release it. The impact block 4 hits the fixed circular plate 3 under the action of spring force to drive the entire straight rod 1 upward, thereby driving the three-jaw chuck 8 to move the cylindrical pin Pull out, the straight pin can be pulled out so many times, it is not only convenient and fast to use, but also the degree of spring compression can be adjusted according to the clamping situation of the straight pin, and the straight pin can be pulled out while protecting the straight pin; at the same time, when needed When clamping the cylindrical pin, the tool can also be turned upside down, and the end of the external thread section of the straight rod 1 corresponds to the cylindrical pin, hold and fix the circular plate 3 by hand, adjust the spring and compress the spring, and the impact block 4 moves down to impact and fix The circular plate 3 and the fixed circular plate 3 drive the straight rod 1 to hit the top of the cylindrical pin through threads, so that the cylindrical pin can be slowly snapped into the pin hole so many times, so as to meet different needs and greatly improve the practicability.

Example 2

In this embodiment, on the basis of Embodiment 1, the fixed circular plate is optimized, specifically: the circumferential surface of the fixed circular plate 3 is provided with knurling.

In this embodiment, the textured knurling can increase the friction between the fixed circular plate 3 and the human hand, and facilitate the rotation of the fixed circular plate 3, making its rotation more convenient.

Example 3

In this embodiment, the following structure is optimized on the basis of embodiment 1 or embodiment 2: the straight rod 1 is equipped with a locking nut 2 at the upper end of the fixed circular plate 3 .

In this embodiment, in order to protect the thread of the fixed circular plate 3 and the external thread of the straight rod 1, and at the same time to stabilize the fixed circular plate 3 and prevent the shaking of the fixed circular plate 3 from affecting knocking, thereby affecting the loading and unloading effect of the cylindrical pin, a locking is added. The nut 2 is used to lock and fix the circular plate 3, and at the same time, it can also weaken the impact effect of the impact block 4 on the thread of the fixed circular plate 3 and the external thread of the straight rod 1, so as to protect the thread without affecting the use effect, safety and practicability powerful.

Example 4

In this embodiment, the following structure is added on the basis of any of the above-mentioned embodiments, specifically: the upper end of the impact block 4 is provided with an impact ring, and two horizontal pressure columns 5 are evenly distributed on the circumferential surface of the impact ring.

This embodiment considers that the staff can only use one hand for compressing the spring, so for convenience, an impact ring is specially arranged on the upper end of the impact block 4, and two horizontal pressure columns 5 are evenly distributed on the circumferential surface of the impact ring. Fingers can be pressed on the horizontal pressure column 5 when the impact block 4 is pressed down, which is not only convenient for applying force, but also prevents the hands from slipping and affecting loading and unloading.

Example 5

In this embodiment, the following structure is optimized on the basis of any of the above embodiments: the three-jaw chuck 8 is screwed or pinned to the straight rod 1 .

In this embodiment, the screw connection or pin connection between the three-jaw chuck 8 and the straight rod 1 can facilitate the disassembly of the three-jaw chuck 8 and the straight rod 1, and can facilitate the replacement of damaged parts, and the entire tool can also be disassembled and carried. , reduce the carrying space, serve multiple purposes.

The above is the embodiment of the present utility model. The utility model is not limited to the above-mentioned embodiment, anyone should know that the structural changes made under the enlightenment of the utility model, and any technical solutions that are the same as or similar to the utility model, all fall into the protection scope of the utility model within. the

Claims (5)

1. a straight pin handling instrument, it is characterized in that: comprise straight-bar (1), straight-bar (1) is divided into the external thread section of upper end and smooth section two parts of lower end, the external thread section thread connection fixed disc (3) of described straight-bar (1), the smooth section of described straight-bar (1) is through the rear three-jaw chuck (8) that connects in base plate (7) middle part, between described fixed disc (3) and base plate (7), be also provided with the impact block (4) and the spring (6) that are enclosed within on straight-bar (1), described spring (6) lower end is fixed on base plate (7) upper surface, described spring (6) upper end is fixedly connected with impact block (4), described impact block (4) can move axially along straight-bar (1).

2. a kind of straight pin handling instrument according to claim 1, is characterized in that: described fixed disc (3) periphery is provided with hatching knurling.

3. a kind of straight pin handling instrument according to claim 1, is characterized in that: described straight-bar (1) is also combined with locking nut (2) in fixed disc (3) upper end.

4. a kind of straight pin handling instrument according to claim 1, is characterized in that: described impact block (4) upper end is provided with shock annulus, clashes into annulus periphery and is evenly distributed with two horizontal compression legs (5).

5. a kind of straight pin handling instrument according to claim 1, is characterized in that: described three-jaw chuck (8) is threaded or sells with straight-bar (1) and is connected.