Screwdriver for fastening connector positioning pin

Abstract

The utility model discloses a connector positioning pin fastening screwdriver, and belongs to the technical field of auxiliary tools for electrical wiring construction. The screwdriver is provided with a straight screwdriver rod and a body with a screwdriver body arranged at one end; wherein the screwdriver body is provided with an inner cavity for containing the straight screwdriver rod and the male pin, and the straight screwdriver rod is fixedly connected with a limiting pin which is used for being in sliding connection with a sliding groove formed in the screwdriver body; and the spring is arranged in the inner cavity of the screwdriver body and is used for driving the end part of the straight screwdriver rod to extend out of the screwdriver body, so that the straight screwdriver rod can be visually aligned with a male pin or a female pin, and the screwdriver has the beneficial effects of good mounting quality, elimination of potential safety hazards and high operation efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary tools for electrical wiring construction, and in particular to a special screwdriver for fastening the positioning pins of Harting connectors used in rail transit vehicles. Background Technology

[0002] In the manufacturing process of rail vehicles, Harting connectors are a widely used type of connector. Typically, multiple Harting connectors appear in the same location within the same electrical cabinet inside the vehicle. To prevent incorrect insertion during connection, including incorrect insertion of the same group of connectors and incorrect insertion of different groups of connectors, locating pins are installed on the connector connection surface.

[0003] Locating pins are divided into "male pins" and "female pins," and their arrangement determines the connector's connection direction. Currently, the existing method for tightening locating pins involves using a flathead screwdriver. This requires manually inserting the pin into the connector, holding the connector with one hand and the screwdriver with the other to tighten the pin. However, due to the small contact area between the two types of locating pins and the lack of obstruction on both sides, the screwdriver can easily slip out from the side, scratching the connector or piercing the hand holding it, posing quality and safety hazards. Therefore, extreme caution is required during tightening, impacting operational efficiency.

[0004] Therefore, in view of the above problems, it is necessary for this utility model to provide a connector positioning pin fastening screwdriver that has good installation quality, eliminates safety hazards, and has high operating efficiency. Utility Model Content

[0005] The purpose of this utility model is to overcome the defects of the existing technology and provide a connector positioning pin fastening screwdriver to solve the problems of the existing flathead screwdriver's "line-of-alignment", easy slippage leading to damage to the screw groove and connector, and the slipped screwdriver tip pricking the hand.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The connector positioning pin fastening screwdriver disclosed in this utility model includes:

[0008] A flathead screwdriver shaft with a blade at one end;

[0009] The blade body has an inner cavity for accommodating the flathead screwdriver shank and the male pin. The flathead screwdriver shank is fixedly connected to a limit pin for sliding connection with a groove in the blade body.

[0010] A spring placed in the inner cavity of the screwdriver body is used to drive the end of the flathead screwdriver shank to remain protruding outside the screwdriver body so as to visually align the male or female pin.

[0011] Furthermore, the body includes a handle, one end of which is fixedly connected to the blade.

[0012] Furthermore, the end of the handle away from the blade is connected to a roller by a screw, and the roller is rotatable relative to the handle.

[0013] Furthermore, a protrusion is fixedly connected to the end face of the blade body, and the protrusion engages with the notch of the female pin.

[0014] In the above technical solution, the connector positioning pin fastening screwdriver provided by this utility model has the following advantages:

[0015] This utility model designs a connector positioning pin fastening screwdriver. The screwdriver body has an inner cavity that houses and extends a flathead screwdriver shank, giving the screwdriver a central section and a retractable section. When tightening the male pin, the outer central section of the screwdriver body provides positioning, while the inner flathead screwdriver shank, as the retractable section, provides the tightening. When tightening the female pin, the inner flathead screwdriver shank, as the retractable section, provides positioning, while the outer central section provides the tightening. The screwdriver body and the flathead screwdriver shank can be freely switched. During the tightening of the positioning pin, whether tightening the male or female pin, this screwdriver maintains a tight coaxial relationship with the positioning pin, avoiding the technical problems of "line alignment" and easy slippage caused by traditional flathead screwdrivers, which can damage the screw groove and connector, and cause the slipped screwdriver tip to prick the hand. This improves work efficiency and tightening quality, and eliminates safety hazards. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of the connector positioning pin fastening screwdriver disclosed in this utility model;

[0018] Figure 2 This is an exploded view of the connector positioning pin fastening screwdriver disclosed in this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Body; 101. Handle; 102. Blade; 103. Slide groove; 104. Protrusion; 2. Flathead screwdriver; 201. Positioning hole; 3. Positioning pin; 4. Spring; 5. Roller; 6. Screw. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] See Figure 1 As shown;

[0023] The utility model connector positioning pin fastening screwdriver includes: a body 1, a flathead screwdriver 2, a limiting pin 3, a compression spring 4, a roller 5, and a screw 6;

[0024] One end of the main body 1 is provided with a blade 102. The blade 102 has an inner cavity for accommodating a flathead screwdriver shank 2 and a male pin. The flathead screwdriver shank 2 is fixedly connected to a limit pin 3 for sliding connection with the slide groove 103 opened in the blade 102.

[0025] Spring 4 is placed in the inner cavity of the blade body 102 to drive the end of the flathead screwdriver shank 2 to remain protruding outside the blade body 102 so as to visually align the male or female pin.

[0026] Preferably, the body 1 includes a handle 101, one end of which is fixedly connected to a blade 102, and the end of the handle 101 away from the blade 102 is connected to a roller 5 by a screw 6, and the roller 5 is rotatable relative to the handle 101.

[0027] Preferably, a protrusion 104 is fixedly connected to the end face of the blade body 102, and the protrusion 104 is engaged with the notch of the female pin.

[0028] Specifically, during assembly, use screws 6 to install roller 5 at the tail of body 1. There are mounting holes for fastening screws 6 at the tail of body 1. Place spring 4 into the front cavity of body 1. Spring 4 is a compression spring. Then insert flathead screwdriver 2 into the inner cavity of the screwdriver body. When installing, make sure that the positioning hole 201 in the middle of the flathead screwdriver 2 is aligned with the slide groove 103 on body 1.

[0029] Insert the limiting pin 3 into the positioning hole 201 of the flathead screwdriver 2 along the slide groove 103 on the body 1 (the diameter of the positioning hole 201 is slightly smaller than the diameter of the limiting pin 3), that is, the limiting pin 3 and the positioning hole 201 are interference fit until the two sides of the limiting pin 3 in the length direction are flush with the edge of the slide groove 103 on the body 1; before use, the flathead screwdriver 2 is higher than the tip of the body 1 under the action of the compression spring 4, and the roller 5 and the body 1 can rotate relative to each other.

[0030] In the above technical solution, the connector positioning pin fastening screwdriver provided by this utility model works on the following principle:

[0031] Operating steps:

[0032] 1) When using a connector positioning pin fastening screwdriver to fasten the "male pin", press the flathead screwdriver 2 on the positioning pin, press the roller 5 with force, the compression spring 4 is compressed by external force, and the flathead screwdriver 2 retracts into the cavity of the body 1, the distance is the length of the slide groove 103 on the body 1. At this time, the front cavity of the body 1 wraps the positioning pin in it, forming a coaxial relationship. Rotate the body 1, and the flathead screwdriver 2 completes the fastening of the positioning pin on the inside of the cavity of the body 1.

[0033] 2) When using a connector positioning pin fastening screwdriver to tighten the "female pin", the flathead screwdriver 2 is inserted into the positioning pin to form a coaxial relationship. The two protrusions 104 at the front end of the body 1 are stuck in the positioning pin notch. At this time, rotating the positioning pin of the body 1 completes the tightening.

[0034] 3) During the tightening process, the main body 1 rotates, but the roller 5, which is pressed against the palm, will not rotate with it, thus preventing the rotating main body 1 from rubbing against the palm.

[0035] This device solves the technical problems of using traditional flathead screwdrivers during the fastening process, such as "line alignment" and easy slippage leading to damage to the screw groove and connector, and the slipping screwdriver tip pricking the hand. It effectively improves the operational efficiency of the Harting connector positioning pin fastening process in electrical wiring construction in rail vehicle or ship manufacturing, aerospace and other industries.

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A connector positioning pin fastening screwdriver, characterized in that, include: A flathead screwdriver shank (2) and a body (1) with a blade (102) at one end; The blade body (102) has an inner cavity for accommodating the flathead screwdriver shank (2) and the male pin. The flathead screwdriver shank (2) is fixedly connected to a limiting pin (3) for sliding connection with a groove (103) in the blade body (102). A spring (4) placed in the inner cavity of the blade body (102) is used to drive the end of the slotted screwdriver shank (2) to remain protruding outside the blade body (102) so as to visually align the male or female pin.

2. The connector positioning pin fastening screwdriver according to claim 1, characterized in that... ； The body (1) includes a handle (101), one end of which is fixedly connected to the blade (102).

3. The connector positioning pin fastening screwdriver according to claim 2, characterized in that; The end of the handle (101) away from the blade (102) is connected to a roller (5) by a screw (6), and the roller (5) is rotatable relative to the handle (101).

4. The connector positioning pin fastening screwdriver according to claim 1, characterized in that; The end face of the blade body (102) is fixedly connected to a protrusion (104), which engages with the notch of the female pin through the protrusion (104).

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