Adjustable stress cone for cable accessory

Abstract

The utility model belongs to the technical field of stress cones, and discloses a cable accessory adjustable stress cone which comprises a cable and a stress pipe, a vertical sliding rail is arranged on the outer side of the stress pipe, a rotating wheel is slidably connected in the vertical sliding rail, a fixing block is fixedly connected to the outer side of the rotating wheel, and a supporting rod is fixedly connected to the outer side of the fixing block. A center shaft is rotationally connected to the center position in the supporting rod, an abutting block is arranged at the bottom end of the supporting rod in an abutting mode, a telescopic rod is arranged at the bottom end of the abutting block in an abutting mode, a spring is arranged on the outer side of the telescopic rod in a sleeving mode, a base is arranged at the bottom end of the spring in an abutting mode, and a base is fixedly connected to the bottom end of the base. The problems that a stress cone cannot adapt to cables of different models, the cables are placed in the stress cone and are difficult to pull, the elastic holding force of a silicon rubber body is very large, the stress cone is difficult to move on a cable insulation wire core, and the stress cone is difficult to move to the position required by the technology are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stress cones, and specifically relates to an adjustable stress cone for cable accessories. Background Art

[0002] A stress cone is an accessory used for cable connection. It is made of metal materials and is shaped like a cone. Its function is to apply pressure to the cable during the cable connection process to create a firm connection between the cable and the connector.

[0003] Meanwhile, the patent with the application number 201721538066.1 discloses a double-layer stress cone outdoor terminal, including an insulating layer with rain skirts. The insulating layer is a hollow structure with a cavity for accommodating the cable. The cable is inserted into the cavity, and the cavity is filled with an insulating substance. A first stress cone and a second stress cone are sequentially arranged on the cable from the inside to the outside. Both the first stress cone and the first stress cone are arranged in the cavity. The first stress cone and the second stress cone are respectively arranged on the cable through a first insulator and a second insulator.

[0004] However, in the implementation of related technologies, it is found that the above stress cone cannot adapt to different types of cables, and it is difficult to draw the cable when placed inside the stress cone. The elastic holding force of the silicone rubber body itself is very large, and it is difficult to move the stress cone on the cable insulating core, and it is very difficult to move the stress cone to the position required by the process. Content of the Utility Model

[0005] To solve the problems raised in the above background art, the utility model provides an adjustable stress cone for cable accessories, which has a device for applying tension against the outer side of the stress tube, can adapt to different types of cables, and when in use, only requires a small amount of effort to move the stress cone to the position required by the process, without the need for multiple people to cooperate, thus improving work efficiency.

[0006] To achieve the above object, the utility model provides the following technical solution: An adjustable stress cone for cable accessories includes a cable and a stress tube. Vertical sliding rails are provided on the outer side of the stress tube. A runner is slidably connected inside the vertical sliding rails. A fixed block is fixedly connected to the outer side of the runner. A support rod is fixedly connected to the outer side of the fixed block. A central shaft is rotatably connected to the central position inside the support rod. A pressing block is tightly arranged at the bottom end of the support rod. An expansion rod is tightly arranged at the bottom end of the pressing block. A spring is sleeved on the outer side of the expansion rod. The bottom end of the spring is tightly arranged against a base, and the bottom end of the base is fixedly connected to a base plate.

[0007] Preferably, a threaded cap is sleeved outside the cable. A threaded groove is provided inside the threaded cap. A first stress cone is spirally connected inside the threaded groove of the threaded cap. Threads are provided on the outside of the first stress cone. A cavity is provided inside the first stress cone. A first insulator is fitted inside the cavity of the first stress cone. The cable is located outside the first insulator.

[0008] Preferably, a dust-proof sleeve is provided outside the support rod. A cavity is provided inside the dust-proof sleeve. The base is tightly pressed inside the cavity of the dust-proof sleeve.

[0009] Preferably, a bellows groove is provided on the left side of the dust-proof sleeve. Several groups of the bellows grooves of the dust-proof sleeve are provided. The dust-proof sleeve is arranged in a flexible structure.

[0010] Preferably, the inside of the stress tube is arranged as a cavity. A second insulator is fitted inside the cavity of the stress tube. The outside of the second insulator is in contact with the cable. The bottom end of the stress tube is fixedly connected with a third insulator. The inside of the third insulator is arranged as a cavity.

[0011] Preferably, a vertical sliding groove is provided at the front end of the dust-proof sleeve. A support rod is slidably connected inside the vertical sliding groove of the dust-proof sleeve.

[0012] Preferably, special-shaped grooves are provided on the outside of the first insulator. Two groups of the special-shaped grooves are provided and symmetrically arranged on both sides of the first insulator.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The device for pressing tension against the outside of the stress tube in the present utility model can adapt to different types of cables. When in use, with only a small amount of force, the stress cone can be moved to the position required by the process, without the need for multiple people to cooperate, which has the advantage of improving work efficiency.

[0015] 2. In the present utility model, the pulley slides inside the vertical sliding groove to lift the outer support rod. At this time, the stress tube is collected to facilitate pressing the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the support rod structure of the present utility model;

[0018] Figure 3 is a schematic diagram of the base structure of the present utility model;

[0019] Figure 4 is a schematic diagram of the dust-proof sleeve structure of the present utility model;

[0020] Figure 5 This is a schematic diagram of the stress tube structure of the present utility model.

[0021] In the figure: 1. Cable; 2. Threaded nut; 3. First stress cone; 301. First insulator; 302. Special-shaped groove; 4. Stress tube; 401. Dust-proof sleeve; 402. Base; 403. Support rod; 404. Fixed block; 405. Rotating wheel; 406. Central axis; 407. Second insulator; 408. Vertical slide rail; 5. Base; 501. Telescopic rod; 502. Spring; 503. Tightening block; 6. Second stress cone. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1 to 5 shown, the present utility model provides an adjustable stress cone for cable accessories, including a cable 1 and a stress tube 4. A vertical slide rail 408 is provided on the outer side of the stress tube 4. A rotating wheel 405 is slidably connected inside the vertical slide rail 408. A fixed block 404 is fixedly connected to the outer side of the rotating wheel 405. A support rod 403 is fixedly connected to the outer side of the fixed block 404. A central axis 406 is rotatably connected to the central position inside the support rod 403. A tightening block 503 is tightly arranged at the bottom end of the support rod 403. A telescopic rod 501 is tightly arranged at the bottom end of the tightening block 503. A spring 502 is sleeved on the outer side of the telescopic rod 501. The bottom end of the spring 502 is tightly arranged on a base 5. The bottom end of the base 5 is fixedly connected to a base 402. When encountering a large cable 1, the thick cable 1 will push the dust-proof sleeve 401 on the outer side of the stress tube 4 outwards. The rotating wheel 405 inside the dust-proof sleeve 401 slides inside the vertical slide rail 408 on the outer side of the dust-proof sleeve 401. At this time, the tension of the stress tube 4 will extend the support rod 403 outwards through the central axis 406. At this time, the bottom end of the support rod 403 presses the tightening block 503. At this time, the downward force of the tightening block 503 presses the telescopic rod 501 downwards and the outer spring 502 deforms downwards. At this time, the base 5 presses the base 5 to slide downwards, and the fixed block 404 touches the bottom end of the vertical slide rail 408 and stops sliding downwards.

[0024] Specifically, a threaded nut 2 is sleeved outside the cable 1. A threaded groove is provided inside the threaded nut 2. A first stress cone 3 is screwed inside the threaded groove of the threaded nut 2. Threads are provided on the outside of the first stress cone 3. A cavity is provided inside the first stress cone 3. A first insulator 301 is fitted inside the cavity of the first stress cone 3. The cable 1 is outside the first insulator 301. By rotating the threaded nut 2 at the top of the first stress cone 3, the clockwise-rotating threaded nut 2 clamps the first stress cone 3 at this time, and the cable 1 is clamped inside the threaded nut 2 at this time.

[0025] Further, a dust-proof sleeve 401 is provided outside the support rod 403. A cavity is provided inside the dust-proof sleeve 401. The base 402 abuts inside the cavity of the dust-proof sleeve 401. By sliding the base 402 inside the dust-proof sleeve 401, the dust-proof sleeve 401 can be tightly abutted and lifted.

[0026] Furthermore, a bellows groove is provided on the left side of the dust-proof sleeve 401. A number of groups of bellows grooves of the dust-proof sleeve 401 are provided. The dust-proof sleeve 401 is arranged as a flexible structure, which is convenient for generating deformation.

[0027] It should be noted that the inside of the stress tube 4 is arranged as a cavity. A second insulator 407 is fitted inside the cavity of the stress tube 4. The outside of the second insulator 407 is in contact with the cable 1. The bottom end of the stress tube 4 is fixedly connected to a second stress cone 6. The inside of the second stress cone 6 is arranged as a cavity. By.

[0028] It should be noted that a vertical sliding groove is provided at the front end of the dust-proof sleeve 401. A support rod 403 is slidably connected inside the vertical sliding groove of the dust-proof sleeve 401. At this time, the two support rods 403 are rotatably connected.

[0029] It is worth introducing that special-shaped grooves 302 are provided on the outside of the first stress cone 3. Two groups of special-shaped grooves 302 are provided and symmetrically arranged on both sides of the first stress cone 3. By providing the special-shaped grooves 302 on the outside of the first stress cone 3, it is convenient to clamp the inside of the first stress cone 3.

[0030] Working principle: by sleeved cable 1 into the inside of the first stress cone 3, when the cable 1 is thin, by rotating the threaded cap 2 on the top of the first stress cone 3, the threaded cap 2 rotated clockwise at this time clamps the first stress cone 3, and the cable 1 clamps the inside of the threaded cap 2, and now enters the inside of the stress tube 4, when encountering a large cable 1, the thick cable 1 pushes the dust cover 401 outside the stress tube 4 outward, and the wheel 405 inside the dust cover 401 slides inside the vertical slide rail 408 outside the dust cover 401, and the tension of the stress tube 4 extends the support rod 403 outward through the central axis 406, and the bottom end of the support rod 403 squeezes the clamping block 503, and the downward force of the clamping block 503 squeezes the telescopic rod 501 downward and the outer spring 502 deforms downward, and the base 5 squeezes the spring 502 to slide downward, and the fixed block 404 touches the bottom end of the vertical slide rail 408 to stop sliding downward;

[0031] When encountering a smaller cable 1, the spring 502 presses against the top support rod 403 and slides upward. At this time, the dust cover 401 is configured as an accordion structure and can be compressed. At this time, the stress tube 4 overlaps and clamps the cable 1. During the connection process of the cable 1, pressure is applied to the cable 1, and a firm connection is generated between the cable 1 and the connector after passing through the stress tube 4.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable accessory with an adjustable stress cone, comprising a cable (1) and a stress tube (4), characterized in that: A vertical slide rail (408) is provided on the outside of the stress tube (4), a rotating wheel (405) is slidably connected to the inside of the vertical slide rail (408), a fixed block (404) is fixedly connected to the outside of the rotating wheel (405), a support rod (403) is fixedly connected to the outside of the fixed block (404), a central axis (406) is rotatably connected to the inner center position of the support rod (403), a pressing block (503) is tightly provided at the bottom end of the support rod (403), a telescopic rod (501) is tightly provided at the bottom end of the pressing block (503), a spring (502) is sleeved on the outside of the telescopic rod (501), a base (5) is tightly provided at the bottom end of the spring (502), and the bottom end of the base (5) is fixedly connected to the base (402).

2. The cable accessory adjustable stress cone according to claim 1, characterized in that: The outer side of the cable (1) is sleeved with a threaded cap (2), the interior of the threaded cap (2) is provided with a threaded groove, the interior of the threaded cap (2) is spirally connected with a first stress cone (3), the outer side of the first stress cone (3) is provided with a thread, the interior of the first stress cone (3) is provided with a cavity, the interior of the cavity of the first stress cone (3) is fitted with a first insulator (301), and the cable (1) is on the outer side of the first insulator (301).

3. The cable accessory with adjustable stress cone according to claim 1, characterized in that: A dust cover (401) is provided on the outside of the support rod (403), a cavity is provided inside the dust cover (401), and the base (402) is tightly pressed against the cavity of the dust cover (401).

4. The cable accessory adjustable stress cone according to claim 3, characterized in that: An accordion groove is provided on the left side of the dust cover (401), and the accordion grooves of the dust cover (401) are provided in a plurality of groups, and the dust cover (401) is provided in a flexible structure.

5. The cable accessory adjustable stress cone according to claim 1, characterized in that: The interior of the stress tube (4) is configured as a cavity, a second insulator (407) is adhered to the interior of the cavity of the stress tube (4), the outer side of the second insulator (407) is adhered to the cable (1), a second stress cone (6) is fixedly connected to the bottom end of the stress tube (4), and the interior of the second stress cone (6) is configured as a cavity.

6. The cable accessory adjustable stress cone according to claim 4, characterized in that: A vertical sliding groove is provided at the front end of the dustproof sleeve (401), and a support rod (403) is slidably connected inside the vertical sliding groove of the dustproof sleeve (401).

7. The cable accessory with adjustable stress cone according to claim 2, characterized in that: Special-shaped grooves (302) are provided on the outer side of the first stress cone (3), and the special-shaped grooves (302) are arranged in two groups and are symmetrically arranged on both sides of the first stress cone (3).

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