Rotary fastener device

Abstract

This utility model provides a rotary fastening screw device, relating to the field of cable splicing technology. It includes a mounting plate, a limiting sleeve, and an interface sleeve. The limiting sleeve has two limiting grooves on each of its two inner walls, with multiple limiting grooves corresponding to the inner edges of the limiting sleeve. Each of the inner walls on both sides of the limiting sleeve has a recess in the middle. An arc-shaped spring is fixed to the top surface of each of the two recesses, and one end of each arc-shaped spring slides against the bottom surface of the recess. In this utility model, before tightening the nut on the interface sleeve, the interface sleeve is inserted into the limiting sleeve, and during insertion, the limiting strip slides and engages with the limiting groove, allowing it to cooperate with the limiting sleeve to limit and constrain the interface sleeve. This makes it easier for the operator to apply force when tightening the nut on the interface sleeve by rotating an external wrench.

Description

Technical Field

[0001] This utility model relates to the field of cable splicing technology, and in particular to a rotary fastening screw device. Background Technology

[0002] A cable is an electrical energy or signal transmission device, usually composed of several or several groups of conductors. When cables are connected, interface sleeves need to be installed at the ends. The connection is made through the interface sleeves. The interface sleeves are divided into male interface sleeves and female interface sleeves. The connection is completed by inserting the male interface sleeve into the female interface sleeve.

[0003] Currently, when installing the cable end and the interface sleeve, it is necessary to strip the cable and then connect the internal conductors of the cable to the corresponding joints on the interface sleeve. After connection, the fastening nut on the interface sleeve is tightened to bind the multiple conductors. However, when the fastening nut is turned, the interface sleeve has no force point and cannot be properly tightened. Utility Model Content

[0004] This utility model provides a rotary fastening screw device to solve the problems of the prior art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] The rotary fastening screw device includes a mounting plate, a limiting sleeve, and an interface sleeve. The limiting sleeve has two limiting grooves on both inner walls. Multiple limiting grooves are located at the inner edge of the limiting sleeve. The limiting sleeve has a notch at the middle of both inner walls. An arc-shaped spring is fixed to the top surface of the inner surface of the two notches. One end of the two arc-shaped springs slides against the bottom surface of the inner surface of the notch.

[0007] Optionally, limit strips are fixed on both outer surfaces of the interface sleeve, the interface sleeve is located inside the limit sleeve, and multiple limit strips are correspondingly slidably engaged inside the limit groove.

[0008] Optionally, the outer surfaces of the two arc-shaped spring pieces are respectively fitted to the outer surface of the interface sleeve.

[0009] Optionally, the mounting plate has a cylindrical opening at the middle of its front side that extends to the rear side, and a slip ring is rotatably provided in the middle of the inner wall of the cylindrical opening.

[0010] Optionally, the front side of the slip ring sleeve extends to the front side of the mounting plate, and a gear disk is fixed between the front sides of the slip ring sleeve, with the rear side of the gear disk fitting against the front side of the mounting plate.

[0011] Optionally, the outer surface of the gear disk is provided with multiple tooth grooves at equal intervals along the circumferential direction. A fixing block is fixed on the front side of the mounting plate near one edge. A positioning pin is slidably provided on one side of the fixing block. One end of the positioning pin passes through to the other side of the fixing block and extends to engage inside the tooth groove.

[0012] Optionally, a nylon pad is fixed to the front side of the gear disk, and the bottom of the limiting sleeve is fixed to the front side of the nylon pad.

[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. In this utility model, before tightening the nut on the interface sleeve, the interface sleeve is inserted into the inside of the limiting sleeve, and during the insertion process, the limiting strip is slidably engaged in the inside of the limiting groove, so that it can cooperate with the limiting sleeve to limit and constrain the interface sleeve. At this time, when tightening the nut on the interface sleeve by rotating the external wrench, it is convenient for the operator to apply force.

[0015] 2. In this utility model, when the interface sleeve is inserted into the inside of the limiting sleeve, the outer surface of the arc-shaped spring piece located inside the notch will fit against the outer surface of the interface sleeve, and the arc-shaped spring piece has a certain elastic force, so it can constrain and press the interface sleeve to prevent the interface sleeve from sliding out and falling off from the inside of the limiting sleeve. In actual use, people can also change the docking angle of the limiting sleeve. By rotating the gear disk, the limiting sleeve can be driven to rotate. After rotating to a suitable angle, the gear disk can be positioned by one end of the positioning pin engaging with the tooth groove. Attached Figure Description

[0016] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0017] Figure 1 A three-dimensional structural diagram of one side of the rotary fastening screw device proposed in this utility model;

[0018] Figure 2 This utility model provides a three-dimensional structural diagram of the other side of the rotary fastening screw device;

[0019] Figure 3 This utility model provides a cross-sectional perspective view of the rotary fastening screw device.

[0020] Figure 4 This utility model Figure 2 A magnified view of point A in the middle.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Mounting plate; 2. Gear disc; 3. Tooth groove; 4. Nylon pad; 5. Limiting sleeve; 6. Interface sleeve; 7. Limiting strip; 8. Fixing block; 9. Positioning pin; 10. Cylindrical opening; 11. Slip ring sleeve; 12. Limiting groove; 13. Notch; 14. Arc-shaped spring.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Example 1, such as Figure 1-4 As shown, this utility model provides a technical solution for a rotary fastening screw device: including a mounting plate 1, a limiting sleeve 5, and an interface sleeve 6. Two limiting grooves 12 are opened on both sides of the inner wall of the limiting sleeve 5. Multiple limiting grooves 12 are located at the inner edge of the limiting sleeve 5. A notch 13 is opened in the middle of both sides of the inner wall of the limiting sleeve 5. An arc-shaped spring piece 14 is fixed on the inner top surface of the two notches 13. One end of the two arc-shaped spring pieces 14 slides and fits against the inner bottom surface of the notch 13.

[0026] The effect achieved by the entire embodiment 1 is that before tightening the nut on the interface sleeve 6, the interface sleeve 6 is inserted into the inside of the limiting sleeve 5, and during the insertion process, the limiting strip 7 is slidably engaged in the inside of the limiting groove 12, so that it can cooperate with the limiting sleeve 5 to limit and constrain the interface sleeve 6. At this time, when tightening the nut on the interface sleeve 6 by rotating the external wrench, it is convenient for the operator to apply force.

[0027] Example 2, as Figure 1-4As shown, limit strips 7 are fixed on both outer surfaces of the interface sleeve 6. The interface sleeve 6 is located inside the limit sleeve 5. Multiple limit strips 7 are correspondingly slidably engaged inside the limit groove 12. The outer surfaces of the two arc-shaped spring pieces 14 are correspondingly in contact with the outer surface of the interface sleeve 6. A cylindrical opening 10 extending to the rear side is provided at the middle of the front side of the mounting plate 1. A sliding ring sleeve 11 is rotatably provided in the middle of the inner wall of the cylindrical opening 10. The front side of the sliding ring sleeve 11 extends to the front side of the mounting plate 1. A gear disk 2 is fixed between the gear disk 2 and the front side of the mounting plate 1. The outer surface of the gear disk 2 is provided with multiple tooth grooves 3 at equal intervals along the circumferential direction. A fixing block 8 is fixed near one edge of the front side of the mounting plate 1. A positioning pin 9 is slidably provided on one side of the fixing block 8. One end of the positioning pin 9 passes through to the other side of the fixing block 8 and extends to engage with the tooth groove 3. A nylon pad 4 is fixed to the front side of the gear disk 2. The bottom of the limiting sleeve 5 is fixed to the front side of the nylon pad 4.

[0028] The effect achieved by the entire embodiment 2 is that when the interface sleeve 6 is inserted into the inside of the limiting sleeve 5, the outer surface of the arc-shaped spring piece 14 located inside the notch 13 will fit against the outer surface of the interface sleeve 6. The arc-shaped spring piece 14 has a certain elastic force, so it can constrain and press the interface sleeve 6 to prevent the interface sleeve 6 from sliding out and falling off from the inside of the limiting sleeve 5. In actual use, people can also change the docking angle of the limiting sleeve 5. By rotating the gear disk 2, the limiting sleeve 5 can be driven to rotate. After rotating to a suitable angle, the gear disk 2 can be positioned by one end of the positioning pin 9 engaging with the tooth groove 3.

[0029] Working principle: Before tightening the nut on the interface sleeve 6, insert the interface sleeve 6 into the inside of the limiting sleeve 5. During the insertion process, the limiting strip 7 slides and engages inside the limiting groove 12, so that it can cooperate with the limiting sleeve 5 to limit and constrain the interface sleeve 6. At this time, when tightening the nut on the interface sleeve 6 by rotating the external wrench, it is convenient for the operator to apply force. When the interface sleeve 6 is inserted into the inside of the limiting sleeve 5, the outer surface of the arc-shaped spring piece 14 located inside the recess 13 will fit against the outer surface of the interface sleeve 6. The arc-shaped spring piece 14 has a certain elastic force, so it can constrain and press the interface sleeve 6 to prevent the interface sleeve 6 from sliding out and falling off from the inside of the limiting sleeve 5. In actual use, people can also change the docking angle of the limiting sleeve 5. By rotating the gear disk 2, the limiting sleeve 5 can be rotated. After rotating to a suitable angle, one end of the positioning pin 9 engages with the tooth groove 3 to position the gear disk 2.

[0030] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A rotary fastening screw device, comprising a mounting plate (1), a limiting sleeve (5), and an interface sleeve (6), characterized in that: The inner walls of both sides of the limiting sleeve (5) are provided with two limiting grooves (12). The multiple limiting grooves (12) are located at the inner edge of the limiting sleeve (5). The inner walls of both sides of the limiting sleeve (5) are provided with a notch (13) in the middle. The top surface of the inner surface of the two notches (13) is fixed with an arc-shaped spring piece (14). One end of the two arc-shaped spring pieces (14) slides and fits against the bottom surface of the inner surface of the notch (13).

2. The rotary fastening screw device according to claim 1, characterized in that: Limiting strips (7) are fixed on both outer surfaces of the interface sleeve (6). The interface sleeve (6) is located inside the limiting sleeve (5). The multiple limiting strips (7) are slidably engaged inside the limiting groove (12).

3. The rotary fastening screw device according to claim 2, characterized in that: The outer surfaces of the two arc-shaped spring pieces (14) are respectively in contact with the outer surface of the interface sleeve (6).

4. The rotary fastening screw device according to claim 1, characterized in that: The mounting plate (1) has a cylindrical opening (10) extending to the rear side at the middle of the front side, and a slip ring sleeve (11) is rotatably provided in the middle of the inner wall of the cylindrical opening (10).

5. The rotary fastening screw device according to claim 4, characterized in that: The front side of the slip ring sleeve (11) extends to the front side of the mounting plate (1), and a gear disk (2) is fixed between the front sides of the slip ring sleeve (11). The rear side of the gear disk (2) is in contact with the front side of the mounting plate (1).

6. The rotary fastening screw device according to claim 5, characterized in that: The outer surface of the gear disk (2) is provided with multiple tooth grooves (3) at equal intervals along the circumferential direction. A fixing block (8) is fixed on the front side of the mounting plate (1) near one edge. A positioning pin (9) is slidably provided on one side of the fixing block (8). One end of the positioning pin (9) passes through to the other side of the fixing block (8) and extends into the tooth groove (3).

7. The rotary fastening screw device according to claim 6, characterized in that: A nylon pad (4) is fixed to the front side of the gear disk (2), and the bottom of the limiting sleeve (5) is fixed to the front side of the nylon pad (4).

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