Control of a guyed cable with a sleeve cap device

Abstract

A kind of control cable's casing cap device, including casing cap body, first compression spring is arranged in the axial through hole of casing cap body, a limit sleeve one end is located in casing cap body and is limited by first compression spring axially, the other end of the limit sleeve is connected with an adjusting device, the adjusting device includes shell, adjusting sleeve, locking clip, second compression spring, one end of the shell is inserted into the axial hole of limit sleeve by elastic joint and forms joint fixation, second compression spring is arranged in the shell, adjusting sleeve is engaged in the shell and is against second compression spring, the outer wall of one side of adjusting sleeve is provided with a rack along axial arrangement, the side of shell corresponding with rack is provided with a socket, locking clip is inserted into socket and forms axial positioning with rack, control cable is arranged from the axial center of casing cap body, limit sleeve, the shell of adjusting device, the control cable assembly hole of adjusting sleeve, and passes through.

Description

Technical Field

[0001] This invention relates to the field of cables, and more specifically to a sleeve cap device for controlling cables. Background Technology

[0002] Cables are flexible mechanisms that transmit force and displacement. During assembly, the sleeve will bend in multiple places, and its length will change accordingly. At this time, an adjuster is needed to adjust the length of the sleeve to meet the assembly requirements, such as the patent "Adjustable Sleeve Cap Combination Structure of Cable" with authorization announcement number CN203532490U.

[0003] However, when the cable adopts this sleeve cap structure, the cable will bear an excessive load when the displacement at the input end is greater than the displacement at the output end. Currently, the cable sleeve caps cannot adjust the load borne by the cable, and the cable is very likely to break due to overload.

[0004] Overload protectors that add additional load adjustment can usually only be installed in the middle of the sleeve, which requires the cable to be installed in two sections, requiring a large amount of space. With the advent of the wave of automotive intelligence, the adjustment function of car seats is increasingly dependent on electrical functions, resulting in less and less space for cable arrangement. In order to meet the regular adjustment needs of car seats, while ensuring the function of the cable, the requirements for space arrangement are becoming more and more stringent. There is an urgent need for a sleeve cap device with smaller space requirements to meet the assembly needs of automotive cables. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a sleeve cap device for controlling cables. Based on the ordinary adjusting sleeve cap, a load protection function is added, which effectively solves the problem of limited space for cable arrangement and greatly improves the user's assembly efficiency and the service life of cable products.

[0006] The objective of this invention is achieved through the following solution: a sleeve cap device for controlling a cable, comprising a sleeve cap body, a first compression spring disposed within the axial through hole of the sleeve cap body, a limiting sleeve having one end abutting against the first compression spring and axially limiting it within the sleeve cap body, and an adjusting device connected to the other end of the limiting sleeve, the adjusting device comprising a housing, an adjusting sleeve, a locking clip, and a second compression spring, one end of the housing being inserted into the axial hole of the limiting sleeve via an elastic snap-fit ​​connector to form a snap-fit ​​fixation, the second compression spring being disposed within the housing, the adjusting sleeve being fitted with a clearance fit within the housing to abut against the second compression spring, a rack arranged axially on one side of the outer wall of the adjusting sleeve, an insertion port being disposed on the side of the housing corresponding to the rack, the locking clip being inserted from the insertion port and engaging with the rack to form axial positioning, and the control cable passing through the control cable assembly hole disposed at the axial center of the sleeve cap body, the limiting sleeve, the housing of the adjusting device, and the adjusting sleeve.

[0007] Preferably, the outer wall of the limiting sleeve is provided with at least two elastic clips symmetrically, and the outer wall of the sleeve cap body is provided with an axial limiting groove corresponding to the elastic clips. The limiting sleeve is engaged with the sleeve cap body by the elastic clips.

[0008] Preferably, one end of the inner cavity of the adjusting sleeve is provided with a second compression spring mounting groove, and the other end is provided with a mounting hole for installing the cable sleeve. One end of the second compression spring abuts against the second compression spring mounting groove, and the other end abuts against one end of the inner cavity of the adjusting device housing.

[0009] Preferably, the lower end face of the locking clip is provided with a serrated groove, and the locking clip is inserted into the housing of the adjusting device from the insertion port, so that the serrations on the rack engage in the serrated groove to form a lock.

[0010] Preferably, the elastic snap-fit ​​connector has a cross-shaped opening, so that the elastic snap-fit ​​connector forms a four-claw type limiting snap-fit ​​connector.

[0011] The beneficial effects of this invention are as follows:

[0012] A first compression spring is installed in the axial through hole of the sleeve cap body. One end of a limiting sleeve abuts against the first compression spring and is axially limited within the sleeve cap body. The other end of the limiting sleeve is connected to an adjustment device. The adjustment device includes a housing, an adjustment sleeve, a locking clip with a serrated groove on its lower end face, and a second compression spring. One end of the housing is inserted into the axial hole of the limiting sleeve through an elastic snap-fit ​​connector to form a snap-fit ​​fixation. The second compression spring is installed inside the housing. The adjustment sleeve is fitted with a clearance fit inside the housing to abut against the second compression spring. A rack arranged axially is provided on one side of the outer wall of the adjustment sleeve. An insertion port is provided on the side of the housing corresponding to the rack. The locking clip is inserted from the insertion port and engages with the rack to form axial positioning. One end of the inner cavity of the adjustment sleeve is provided with a second compression spring mounting groove, and the other end is provided with a mounting hole for installing a cable sleeve. One end of the second compression spring abuts against the second compression spring mounting groove, and the other end abuts against one end of the inner cavity of the adjustment device housing.

[0013] During assembly, the control cable passes through the control cable assembly hole set at the axis of the sleeve cap body, the limit sleeve, the housing of the adjusting device, and the adjusting sleeve. The cable sleeve is installed in the mounting hole set in the inner cavity of the adjusting sleeve. The adjusting device adjusts the length of the control cable under the action of the second compression spring. After the length is adjusted, the locking clip is pressed. The locking clip is inserted into the housing of the adjusting device from the insertion port, so that the serrations on the rack engage in the serration groove of the locking clip to form a lock.

[0014] When it is necessary to adjust the exposed length of the control cable, simply push the locking clip upwards. Under the action of the second compression spring, the adjusting sleeve slides to the right inside the housing of the adjusting device, causing the control cable to move. After automatically adjusting to the desired position, press the locking clip to easily, quickly, and conveniently adjust the exposed length of the cable.

[0015] When the load on the control cable is too large, the excess load will act on the first compression spring set in the sleeve cap body through the limiting sleeve, which plays a role in buffering and preventing the excess load from being concentrated on the control cable and causing it to break.

[0016] Preferably, the outer wall of the limiting sleeve is provided with at least two elastic clips symmetrically, and the outer wall of the sleeve cap body is provided with an axial limiting groove corresponding to the elastic clips. After the limiting sleeve is engaged with the sleeve cap body by the elastic clips, the elastic clips are restricted in the axial limiting grooves, so that the limiting sleeve has a certain range of axial degrees of freedom under the action of the first compression spring, which plays a more precise and stable yielding and buffering role for the additional load on the cable.

[0017] The advantages of this invention are that the overload protector used to adjust the additional load of the control cable is integrated into the adjusting sleeve cap. The assembly requirement is changed from the middle of the sleeve to the end, and it only needs to be installed at one end of the cable. While realizing the basic function of "adjusting the exposed length of the control cable", it also plays a role in buffering and limiting the load on the control cable, avoiding the problem of insufficient assembly space for the control cable, greatly improving the competitiveness of the product, with simple structure, low cost and convenient assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0019] Figure 2 for Figure 1 Sectional view along direction A;

[0020] Figure 3 This is a schematic diagram of the sleeve cap body structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the limiting sleeve structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the housing structure of the adjusting device in this invention;

[0023] Figure 6 This is a schematic diagram of the assembly structure of the housing and locking clip of the adjusting device in this invention;

[0024] Figure 7 This is a schematic diagram of the adjusting sleeve structure of the present invention;

[0025] Figure 8 This is a cross-sectional schematic diagram of the elastic snap-fit ​​connector of the present invention. Detailed Implementation

[0026] like Figures 1 to 8 As shown, a sleeve cap device for controlling a cable includes a sleeve cap body 1. A first compression spring 2 is disposed in the axial through hole 1a of the sleeve cap body 1. A limiting sleeve 3 is axially limited within the sleeve cap body 1 by one end against the first compression spring 2. The other end of the limiting sleeve 3 is connected to an adjusting device. The adjusting device includes a housing 4, an adjusting sleeve 7, a locking clip 6, and a second compression spring 5. One end of the housing 4 is inserted into the axial hole of the limiting sleeve 3 through an elastic snap connector 4a to form a snap-fit ​​fixation. The second compression spring 5 is disposed within the housing 4. The adjusting sleeve 7 is fitted with a clearance fit within the housing 4 to abut against the second compression spring 5. A rack 7a arranged axially is disposed on the outer wall of one side of the adjusting sleeve 7. An insertion port 4b is disposed on the side of the housing 4 corresponding to the rack. The locking clip 6 is inserted from the insertion port b and engages with the rack 7a to form axial positioning. The control cable passes through the control cable assembly hole disposed at the axial center of the sleeve cap body 1, the limiting sleeve 3, the housing 4 of the adjusting device, and the adjusting sleeve 7.

[0027] In this embodiment, the elastic snap-fit ​​connector 4a is provided with a cross opening, so that the elastic snap-fit ​​connector 4a forms a four-claw type limiting snap-fit ​​connector, which makes it easier to insert into the shaft hole of the limiting sleeve 3 to form a snap-fit ​​fixation. After being inserted into the shaft hole of the limiting sleeve 3, the shaft shoulder 4c provided on the elastic snap-fit ​​connector 4a has a backstop function, making it difficult for the elastic snap-fit ​​connector 4a to fall out of the shaft hole of the limiting sleeve 3.

[0028] The lower end face of the locking clip 6 is provided with a serrated groove 6a. The locking clip 6 is inserted into the housing 4 of the adjusting device from the insertion port b, so that the serrations on the rack 7a are engaged in the serrated groove 6a of the locking clip 6 to form a lock.

[0029] Two elastic clips 3a are symmetrically arranged on the outer wall of the limiting sleeve 3. The outer wall of the sleeve cap body 1 is provided with an axial limiting groove 1b corresponding to the elastic clips 3a. After the limiting sleeve 3 is engaged with the sleeve cap body 1 by the elastic clips 3a to prevent it from moving backward, the movement range of the elastic clips 3a is restricted within the axial limiting groove 1b. This allows the limiting sleeve 3 to have a certain range of axial freedom under the action of the first compression spring 2, which provides a more precise and stable buffering effect against the additional load on the cable.

[0030] One end of the inner cavity of the adjusting sleeve 7 is provided with a second compression spring mounting groove 7b, which is usually an annular groove. The other end of the inner cavity of the adjusting sleeve 7 is provided with a mounting hole 7c for mounting the cable sleeve 8. One end of the second compression spring 5 abuts in the second compression spring mounting groove 7b, and the other end abuts in one end of the inner cavity of the housing 4 of the adjusting device. Usually, a hollow spring mounting post is provided at this end of the inner cavity of the housing 4 of the adjusting device to ensure the installation stability of the second compression spring 5.

[0031] During assembly, the control cable passes through the control cable assembly hole set at the axis of the sleeve cap body 1, the limit sleeve 3, the housing 4 of the adjusting device, and the adjusting sleeve 7. The cable sleeve is installed in the mounting hole 7c set in the inner cavity of the adjusting sleeve 7. The adjusting device adjusts the length of the control cable under the action of the second compression spring 5. After the length is adjusted, the locking clip 6 is pressed. The locking clip 6 is inserted into the housing 4 of the adjusting device from the insertion port 4b, so that the serrations on the rack 7a are engaged in the serration groove 6a of the locking clip 6 to form a lock.

[0032] When it is necessary to adjust the exposed length of the control cable, simply push the locking clip 6 upwards. Under the action of the second compression spring 5, the adjusting sleeve 7 slides to the right inside the housing 4 of the adjusting device, driving the control cable to move. After automatically adjusting to the desired position, press the locking clip 6 to easily, quickly and conveniently adjust the exposed length of the cable.

[0033] When the load on the control cable is too large, the excess load will act on the first compression spring 2 set inside the sleeve cap body 1 through the limit sleeve 7, which plays a role in buffering and preventing the excess load from being concentrated on the control cable and causing it to break.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A sleeve cap device for controlling a stay, comprising a sleeve cap body (1), characterized in that, The first compression cylindrical spiral spring (2) is arranged in the axial through hole (1a) of the sleeve cap body (1), one end of a limiting sleeve (3) is abutted against the first compression cylindrical spiral spring (2) and is axially limited in the sleeve cap body (1), the other end of the limiting sleeve (3) is connected with an adjusting device, the adjusting device comprises a shell (4), an adjusting sleeve (7), a locking clip (6) and a second compression cylindrical spiral spring (5), one end of the shell (4) is inserted into the shaft hole of the limiting sleeve (3) through an elastic clamping joint (4a) to form clamping fixation, cross openings are arranged on the elastic clamping joint (4a) to make the elastic clamping joint (4a) form a four-jaw type limiting clamping joint, and a shaft shoulder (4c) for retreat stopping is arranged on the elastic clamping joint (4a); the second compression cylindrical spiral spring (5) is arranged in the shell (4), the adjusting sleeve (7) is gap-fitted in the shell (4) and is abutted against the second compression cylindrical spiral spring (5), an axial rack (7a) is arranged on the outer wall of one side of the adjusting sleeve (7), a socket (4b) is arranged on the side of the shell (4) corresponding to the rack, the locking clip (6) is inserted into the socket (4b) and is axially positioned with the rack (7a) to form shaft positioning, and a control cable is arranged in the axial control cable assembly hole of the sleeve cap body (1), the limiting sleeve (3), the shell (4) of the adjusting device and the adjusting sleeve (7). Two elastic clips (3a) are symmetrically arranged on the outer wall of the limiting sleeve (3), axial limiting grooves (1b) corresponding to the elastic clips (3a) are arranged on the outer wall of the sleeve cap body (1), the limiting sleeve (3) is clamped with the sleeve cap body (1) through the elastic clips (3a), the limiting sleeve (3) can be clamped with the sleeve cap body (1) through the elastic clips (3a) to stop retreat, the movement range of the elastic clips (3a) is limited in the axial limiting grooves (1b), the limiting sleeve (3) has a certain range of axial freedom under the action of the first compression cylindrical spiral spring (2), so that when the load borne by the control cable is too large, the excessive load can act on the first compression cylindrical spiral spring (2) arranged in the sleeve cap body (1) through the limiting sleeve (3), the role of giving way and buffering is achieved, and the excessive load is prevented from being concentrated on the control cable to cause the control cable to be broken.

2. A sleeve cap device for controlling a stay according to claim 1, characterized in that One end of the inner cavity of the adjusting sleeve (7) is provided with a second compression cylindrical spiral spring mounting groove (7b), the other end is provided with a mounting hole (7c) for mounting a cable sleeve, one end of the second compression cylindrical spiral spring (5) is abutted against the second compression cylindrical spiral spring mounting groove (7b), and the other end is abutted against one end of the inner cavity of the shell (4) of the adjusting device.

3. The control of the cable sleeve cap device according to claim 1, characterized in that, The lower end surface of the locking clip (6) is provided with a sawtooth groove (6a), the locking clip (6) is inserted into the shell (4) of the adjusting device from the socket (4b), the sawteeth on the rack (7a) are clamped in the sawtooth groove (6a) to form locking.

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