Guide head for threading device

Abstract

The utility model relates to a guiding head for a threading device, which comprises a connector capable of being connected with a traction wire to guide the passing direction, one end, far away from the traction wire, of the connector is connected with a bending steering assembly, and one end, far away from the connector, of the bending steering assembly is further connected with a threading connecting assembly. The outer side of the bending steering assembly is further sleeved with an elastic telescopic sleeve, the bending steering assembly comprises a steering adjusting mechanism, a driving mechanism, a mounting top plate and a limiting shell, the driving mechanism is mounted in the limiting shell, the output end of the driving mechanism is in transmission connection with the telescopic end of the steering adjusting mechanism, and the output end of the driving mechanism is in transmission connection with the telescopic end of the steering adjusting mechanism. The two opposite ends of the steering adjusting mechanism are installed on the installation top plate and the limiting shell correspondingly. The threading steering device can rotate and bend in the pipe body to quickly adapt to a bending channel limited by the pipe body so as to realize threading steering.

Description

Technical Field

[0001] The utility model relates to the technical field of cable auxiliary threading equipment, in particular to a guide head for a threader. Background Art

[0002] When carrying out building decoration, in order to ensure the aesthetics and plasticity of the decoration, concealed pipes are often used for laying electrical lines. Laying electrical lines through pipes can effectively protect electrical lines, prevent the insulation layer of electrical lines from being corroded, and greatly reduce the damage to the lines caused by environmental factors. At the same time, the pipes can effectively prevent the insulation layer of electrical lines from being bitten by mice, effectively prevent the occurrence of fires caused by insulation damage, and improve the safety of buildings. When performing wiring operations, in order to improve the efficiency and convenience of wires passing through the pipe body, a threader is usually used to thread the pipe body. The threader generally consists of a connector, a threading wire, and a winding structure. When in use, the threader is placed inside the pipe body by manual placement, and the threader is connected to the wire, and then the traction wire inserted into the wire pipe is connected to the threader, and then the traction wire is pulled back to allow the threader to pull the cable through the pipe body to achieve cable threading.

[0003] However, the guide head of the existing threader cannot be turned according to the actual conducting direction of the tube body, and usually strong pulling or other auxiliary equipment is required to assist in adjusting the position of the thread head to achieve the turning of the threader and the cable. As a result, the existing threading equipment cannot quickly and effectively match the tube body in a complex and tortuous tube body to complete the turning, and cannot well pull the cable to the other end of the tube body. The threading operation is difficult and takes a long time, which reduces the convenience and processing efficiency of the threading operation and is not conducive to large-scale threading processing. Utility Model Content

[0004] The utility model aims to provide a guide head for a threader that can rotate and bend inside a pipe body to quickly adapt to a curved channel defined by the pipe body and realize threading steering, so as to solve the problem that existing threaders have difficulty in steering and cannot effectively cope with curved pipes, thereby resulting in great difficulty in threading, low threading efficiency and long threading cycle, which makes it inconvenient to quickly carry out large-scale threading processing.

[0005] The technical solution adopted by the utility model is: a guiding head for a threader, comprising a connecting head that can be connected to a traction wire to guide the direction of travel, the end of the connecting head away from the traction wire is connected to a bending steering assembly, the end of the bending steering assembly away from the connecting head is also connected to a threading connection assembly, and the outer side of the bending steering assembly is also sleeved with an elastic telescopic sleeve, the bending steering assembly comprises a steering adjustment mechanism, a driving mechanism, a mounting top plate and a limiting shell, wherein the driving mechanism is installed in the limiting shell, and the output end of the driving mechanism is transmission-connected to the telescopic end of the steering adjustment mechanism, and the opposite ends of the steering adjustment mechanism are respectively installed on the mounting top plate and the limiting shell.

[0006] According to a preferred embodiment, the steering adjustment mechanism includes a first supporting bent spring and a second telescopic spring, wherein the second telescopic spring and a plurality of the first supporting bent springs are annularly spaced apart on the surface of the mounting top plate, a baffle is horizontally inserted on the spring body section of the second telescopic spring close to the mounting top plate, and the baffle is connected to the horizontal winding unit of the driving mechanism via a pull wire.

[0007] According to a preferred embodiment, the driving mechanism includes the horizontal winding unit and an axial rotation unit for controlling the steering adjustment mechanism, the mounting top plate and a part of the limiting shell to rotate around the axis.

[0008] According to a preferred embodiment, the horizontal winding unit is accommodated in the upper shell of the limiting shell, and the upper shell is coaxially connected with the lower shell through a rotating bearing; the axial rotating unit capable of driving the upper shell to rotate around the axis relative to the lower shell is installed in the lower shell.

[0009] According to a preferred embodiment, the surface of the upper shell away from the lower shell is connected to one end of the first supporting bending spring and the second telescopic spring away from the mounting top plate, and the pull wire passes through the shell wall of the upper shell and is connected to the rotating shaft of the horizontal winding unit.

[0010] According to a preferred embodiment, the outer ring of the ring structure defined by the first supporting bending spring and the second telescopic spring is provided with the elastic telescopic sleeve, and the two ends of the elastic telescopic sleeve are sealed by respectively docking to the surface of the upper shell and the mounting top plate.

[0011] According to a preferred embodiment, the mounting top plate is detachably embedded in the end surface of the connector.

[0012] According to a preferred embodiment, one end of the lower shell body away from the upper shell body is connected to the threading connection assembly.

[0013] According to a preferred embodiment, the connecting head includes a connecting column connected to the mounting top plate and a hemispherical head for assisting in guiding the steering; a ring body capable of connecting the traction wire is provided at the top of the curved surface of the hemispherical head; and sliding guide wheels are circumferentially installed at intervals on the side wall of the connecting column.

[0014] According to a preferred embodiment, the threading connection assembly includes a connecting arc plate, a docking pressure plate and an interlocking bolt, wherein the docking pressure plate is detachably attached to the plate surface of the connecting arc plate through the interlocking bolt; and a plurality of curved accommodating grooves are spaced apart on the connecting arc plate.

[0015] The beneficial effects of the utility model are:

[0016] The bending and steering assembly provided in the present application can bend and rotate when the connector passes through the corner position of the tube body under the pulling of the traction wire, so that the connector changes its relative position relative to the threading connection assembly and passes into the tube body after the turning, so as to continue to pass under the action of the traction wire. The elastic bending structure constructed by the bending and steering assembly can bend and rotate when the connector is blocked by the corner through the sensing control method, and the recovery deformation occurs in the process of the connector completing the effective turning and continuing to pass forward, and continues to follow the connector to pass in a roughly straight body shape. The bending and steering assembly provided in the present application can quickly drive the connector to tilt and deflect at the corner of the tube body by first bending and then rotating, and move into the tube body after the turning, so that the traction wire continues to pull the connector to pass. The bending and steering assembly provided in the present application can automatically adjust the relative position of the connector and effectively locate the position of the tube body channel after the turning, so as to quickly and efficiently pull the cable through the tortuous tube body to complete the threading process, reduce the difficulty of the threading operation, and improve the efficiency and convenience of the threading. The threading connection assembly provided in the present application can effectively clamp multiple cables by means of limited clamping of curved paths and multi-wire clamping, so as to facilitate the stable threading of multiple groups of cables at a single time, reducing the problems of wire derailment and low efficiency of single threading during the threading process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred guide head for a threader proposed by the utility model;

[0018] Figure 2 The utility model is a schematic structural diagram of a preferred guide head for a threader when bending occurs.

[0019] Reference numerals list

[0020] 1: traction wire; 2: connector; 3: bending and steering assembly; 4: threading connection assembly; 5: elastic telescopic sleeve; 21: connecting column; 22: hemispherical head; 23: ring body; 24: sliding guide wheel; 31: steering adjustment mechanism; 32: driving mechanism; 33: mounting top plate; 34: limiting shell; 41: connecting arc plate; 42: docking pressure plate; 43: interlocking bolt; 311: first supporting bending spring; 312: second telescopic spring; 313: baffle; 314: pulling wire; 321: horizontal winding unit; 322: axial rotation unit; 341: upper shell; 342: lower shell; 343: rotating bearing; 411: bending accommodating groove. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] The technical solution provided by the present invention will be described in detail below by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is used to help understand the present invention, but does not constitute a limitation of the present invention. In some examples, some implementation methods are not described or are not described in detail because they belong to existing or conventional technologies.

[0023] In addition, the technical features recorded in this article, or the steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequence of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only for illustrative purposes and does not imply a requirement to follow a certain order unless it is explicitly stated that a certain order is required.

[0024] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, under reasonable circumstances (not constituting a self-contradiction), include direct and indirect connections (couplings).

[0025] The following is a detailed description with reference to the accompanying drawings.

[0026] Example 1

[0027] The present application provides a guide head for a threader, which includes a traction wire 1, a connector 2, a bending and steering assembly 3, a threading connection assembly 4 and an elastic telescopic sleeve 5.

[0028] according to Figure 1-2 In a specific embodiment shown, the traction wire 1 can penetrate the tube body and connect with the connector 2 placed at the port of the tube body. The connector 2 can be pulled by the traction wire 1 and pass through the tube body when connected to the traction wire 1, thereby guiding the direction of passage. The end of the connector 2 away from the traction wire 1 is connected with a bending and steering assembly 3 that can be adaptively bent according to the tortuous angle of the tube body to achieve the turning of the passage. The end of the bending and steering assembly 3 away from the connector 2 is also connected with a threading connection assembly 4 that can limit the clamping of the cable to prevent the cable from falling off the passage guide structure. The outer side of the bending and steering assembly 3 is also sleeved with an elastic telescopic sleeve 5 that can wrap and adaptively bend the deformable bending section. The bending and steering assembly 3 provided in the present application can bend and rotate when the connector 2 passes through the corner position of the tube body under the traction of the traction wire 1, so that the relative position of the connector 2 relative to the threading connection assembly 4 changes and penetrates into the tube body after the turning, so as to continue to pass under the action of the traction wire 1. The elastic bending structure constructed by the bending and steering component 3 can bend and rotate by means of sensor control when the connector 2 is blocked by the corner, and recovers and deforms in the process of the connector 2 completing the effective turning and continuing to move forward, and continues to follow the connector 2 in a roughly straight shape. The bending and steering component 3 provided in the present application can quickly drive the connector 2 to tilt and deflect at the corner of the tube body by first bending and then rotating, and move into the tube body after the turn, so that the traction wire 1 can continue to pull the connector 2 to continue to pass. The bending and steering component 3 provided in the present application can automatically adjust the relative position of the connector 2 and effectively locate the position of the tube channel after the turn, so as to quickly and efficiently pull the cable through the tortuous tube body to complete the threading process, reducing the difficulty of the threading operation and improving the efficiency and convenience of the threading. The threading connection assembly 4 provided in the present application can effectively clamp multiple cables by means of position limiting clamping and multi-wire clamping of the curved path, so as to complete the stable threading of multiple groups of cables at a time, reducing the problems of derailment and low efficiency of single threading during the threading process. The elastic telescopic sleeve 5 provided in the present application can protect the bending and steering assembly 3 that can be bent and deformed, and prevent impurities in the tube body from affecting the bending and steering assembly 3.

[0029] Preferably, the connector 2 includes a connecting column 21, a hemispherical head 22, a ring body 23 and a sliding guide wheel 24. Preferably, a top plate 33 is connected and installed at one end of the connecting column 21. Further preferably, sliding guide wheels 24 are installed circumferentially at intervals on the side wall of the connecting column 21. Preferably, a hemispherical head 22 for auxiliary guiding steering is provided at the other end of the connecting column 21. Further preferably, a ring body 23 capable of connecting the traction wire 1 is provided at the top of the curved surface of the hemispherical head 22. The hemispherical head 22 provided in the present application can adapt to the height difference constructed by the butt joint body with steps, so that the axis height is higher than the step height, so as to facilitate smoother passage in the spliced ​​and slightly curved pipe body channel. The sliding guide wheel 24 provided in the present application can reduce the friction during the passage and improve the smoothness of the passage.

[0030] Preferably, the bending and steering assembly 3 includes a steering adjustment mechanism 31, a driving mechanism 32, a mounting top plate 33 and a limiting shell 34. Preferably, the driving mechanism 32 is installed in the limiting shell 34. Further preferably, the output end of the driving mechanism 32 is transmission-connected to the telescopic end of the steering adjustment mechanism 31. Preferably, the opposite ends of the steering adjustment mechanism 31 are respectively installed on the mounting top plate 33 and the limiting shell 34, so that the steering adjustment mechanism 31 is bent and rotated in a manner that the angle and relative position between the connector 2 and the threading connection assembly 4 can be adjusted to change, so that it can be steered to pass through the threading tube with a turning angle. The steering adjustment mechanism 31 provided in the present application can bend and rotate adaptively so that the connector 2 can quickly deflect and move into the tube body channel after the steering, thereby realizing the passing steering, so as to effectively deal with the tube body channel with bending and turning, improve the efficiency and convenience of threading, and reduce the difficulty of threading.

[0031] Preferably, the steering adjustment mechanism 31 includes a first support bending spring 311 and a second telescopic spring 312. Further preferably, the second telescopic spring 312 and the plurality of first support bending springs 311 are arranged circumferentially and spaced apart on the surface of the mounting top plate 33. The outer ring of the ring structure defined by the first support bending spring 311 and the second telescopic spring 312 is provided with an elastic telescopic sleeve 5. Further preferably, the two ends of the elastic telescopic sleeve 5 are blocked by docking to the upper shell 341 and the surface of the mounting top plate 33 respectively. Specifically, the elastic telescopic sleeve 5 can be a bellows that can be telescopically folded and bent. Preferably, a baffle 313 is horizontally inserted on the spring body section of the second telescopic spring 312 close to the mounting top plate 33. Specifically, the baffle 313 is connected to the horizontal winding unit 321 of the driving mechanism 32 through the pull wire 314, so that the horizontal winding unit 321 can adjustably change the length of the pull wire 314, thereby adjusting the compression amount of the second telescopic spring 312 to achieve the bending and steering of the steering adjustment mechanism 31. The pull wire 314 can be wound onto the rotating shaft of the horizontal winding unit 321 during the rotation of the horizontal winding unit 321, thereby pulling the baffle 313 close to the horizontal winding unit 321 to change the length of the second telescopic spring 312, and then causing the mounting top plate 33 connected to the second telescopic spring 312 to deflect following the compression of the second telescopic spring 312, and the first support bending spring 311 to bend in a matching manner to change the relative position relationship between the mounting top plate 33 and the limiting shell 34 accommodating the horizontal winding unit 321.

[0032] Preferably, the driving mechanism 32 includes a horizontal winding unit 321 and an axial rotation unit 322 for controlling the steering adjustment mechanism 31, the mounting top plate 33, and a portion of the limiting housing 34 to rotate around the axis. Preferably, the mounting top plate 33 is detachably embedded in the end surface of the connector 2. Preferably, the horizontal winding unit 321 is a conventional micro-wire winding and discharging motor, and the axial rotation unit 322 is a conventional micro-rotation drive motor.

[0033] Preferably, a horizontal winding unit 321 is accommodated in the upper shell 341 of the limiting shell 34. Further preferably, the upper shell 341 is coaxially connected to the lower shell 342 through a rotating bearing 343. Specifically, an axial rotation unit 322 capable of driving the upper shell 341 to rotate around the axis relative to the lower shell 342 is installed in the lower shell 342. Preferably, the axial rotation unit 322 is a conventional existing deceleration deflection motor. Preferably, the surface of the upper shell 341 away from the lower shell 342 is connected to the end of the first support bending spring 311 and the second telescopic spring 312 away from the mounting top plate 33. Preferably, the pull wire 314 passes through the shell wall of the upper shell 341 and is connected to the rotating shaft of the horizontal winding unit 321.

[0034] Preferably, one end of the lower housing 342 away from the upper housing 341 is connected to the threading connection assembly 4. Preferably, the threading connection assembly 4 includes a connecting arc plate 41, a docking pressure plate 42 and an interlocking bolt 43. Preferably, the docking pressure plate 42 is detachably attached to the plate surface of the connecting arc plate 41 through the interlocking bolt 43. Further preferably, a plurality of curved accommodating grooves 411 are spaced apart on the connecting arc plate 41. Preferably, the threading connection assembly 4 is also connected to the cable output by the wire delivery module of the threading device.

[0035] The working principle of this application is:

[0036] When the traction wire 1 pulls the connector 2 to pass through the tube body, the hemispherical end defined by the connector 2 can adapt to the microbend and the stepped tube body formed by the spliced ​​tube body and continue to pass along with the traction wire 1. When the connector 2 moves to a turning point with a larger turning angle, the connector 2 abuts against the tube wall and cannot continue to move forward under the pull of the traction wire 1. At this time, the built-in displacement monitoring module detects that the connector 2 has stagnated in movement and drives the horizontal winding unit 321 to start working through the control module, so that the rotating shaft of the horizontal winding unit 321 rotates and gradually winds the wire drawing 314 on the rotating shaft, and then the wire drawing 314 pulls the baffle 313 to move toward the direction close to the limit shell 34, so that the second telescopic spring 312 is restricted by the baffle 313 and shrinks and shortens, so that the mounting top plate 33 can be deflected following the second telescopic spring 312, and the multiple first supporting bending springs 311 undergo matching bending deformations to cause the mounting top plate 33 to tilt, so that the connector 2 deflects and tilts synchronously following the mounting top plate 33, so that the direction of the connector 2 changes. During the process of the connector 2 following the tilting and turning, the axial rotation unit 322 rotates and drives the upper shell 341, the steering adjustment mechanism 31, and the mounting top plate 33 to rotate synchronously, so that the deflected connector 2 gradually moves into the tube channel after the turn by rotating around the axis, thereby realizing the steering penetration of the guide structure, so that the connector 2 can continue to move forward in the tube channel after the turn under the pull of the traction wire 1. When the connector 2 continues to move forward, the axial rotation unit 322 stops working to prevent the connector 2 from rotating out of the tube cavity for the second time, and the horizontal winding unit 321 rotates in the opposite direction and gradually releases the wire drawing 314, so that the second telescopic spring 312 gradually returns to its original length, and then the bent steering adjustment mechanism 31 gradually returns to a straight body shape when following the connector 2 gradually penetrates into the inside of the tube after the turn, so as to follow the connector 2 to quickly pass through the tube. When the connector 2 hits the corner again and cannot move forward, the bending steering assembly 3 repeats the above operation again to complete the steering adjustment.

[0037] The present utility model is not limited to the above optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope of the claims of the present utility model fall within the protection scope of the present utility model. Those skilled in the art should understand that the present utility model specification and its drawings are illustrative and do not constitute limitations on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A guide head for a threader, comprising a connector (2) that can be connected to a traction wire (1) to guide the direction of travel, characterized in that: The end of the connector (2) away from the traction wire (1) is connected to a bending and steering assembly (3), the end of the bending and steering assembly (3) away from the connector (2) is also connected to a threading connection assembly (4), and an elastic telescopic sleeve (5) is also sleeved on the outer side of the bending and steering assembly (3). The bending steering assembly (3) comprises a steering adjustment mechanism (31), a driving mechanism (32), a mounting top plate (33) and a limiting shell (34), wherein the driving mechanism (32) is mounted in the limiting shell (34), and the output end of the driving mechanism (32) is transmission-connected to the telescopic end of the steering adjustment mechanism (31), and the opposite ends of the steering adjustment mechanism (31) are respectively mounted on the mounting top plate (33) and the limiting shell (34).

2. The guide head for a needle threader according to claim 1, characterized in that: The steering adjustment mechanism (31) comprises a first supporting bending spring (311) and a second telescopic spring (312), wherein: The second telescopic spring (312) and the plurality of the first supporting bending springs (311) are arranged annularly and spaced apart on the surface of the mounting top plate (33). A baffle (313) is transversely inserted into the spring body section of the second telescopic spring (312) close to the mounting top plate (33), and the baffle (313) is connected to the transverse winding unit (321) of the driving mechanism (32) via a pull wire (314).

3. The guide head for a needle threader according to claim 2, characterized in that: The driving mechanism (32) comprises the horizontally placed winding unit (321) and an axial rotation unit (322) for controlling the steering adjustment mechanism (31), the mounting top plate (33) and part of the limiting housing (34) to rotate around an axis.

4. The guide head for a needle threader according to claim 3, characterized in that: The horizontally placed winding unit (321) is accommodated in the upper shell (341) of the position-limiting shell (34), and the upper shell (341) is coaxially connected to the lower shell (342) via a rotating bearing (343); The axial rotation unit (322) capable of driving the upper shell (341) to rotate around the axis relative to the lower shell (342) is installed in the lower shell (342).

5. The guide head for a needle threader according to claim 4, characterized in that: The surface of the upper shell (341) away from the lower shell (342) is connected to one end of the first supporting bending spring (311) and the second telescopic spring (312) away from the mounting top plate (33), and the pull wire (314) passes through the shell wall of the upper shell (341) and is connected to the rotating shaft of the horizontal winding unit (321).

6. The guide head for a needle threader according to claim 5, characterized in that: The outer ring of the ring structure defined by the first supporting bending spring (311) and the second telescopic spring (312) is provided with the elastic telescopic sleeve (5), and the two ends of the elastic telescopic sleeve (5) are sealed by respectively docking to the surface of the upper shell (341) and the mounting top plate (33).

7. The guide head for a needle threader according to claim 6, characterized in that: The mounting top plate (33) is detachably embedded in the end surface of the connector (2).

8. The guide head for a needle threader according to claim 7, characterized in that: One end of the lower shell (342) away from the upper shell (341) is connected to the threading connection assembly (4).

9. The guide head for a needle threader according to claim 8, characterized in that: The connecting head (2) comprises a connecting column (21) connected to the mounting top plate (33) and a hemispherical head (22) for assisting in guiding the steering; The arcuate top end of the hemispherical head (22) is provided with a ring body (23) capable of connecting with the traction wire (1); Sliding guide wheels (24) are circumferentially installed at intervals on the side walls of the connecting column (21).

10. The guide head for a needle threader according to claim 9, characterized in that: The threading connection assembly (4) comprises a connecting arc plate (41), a butt pressure plate (42) and an interlocking bolt (43), wherein: The butt-jointing pressure plate (42) is detachably attached to the plate surface of the connecting arc plate (41) via the interlocking bolt (43); A plurality of curved accommodating grooves (411) are provided at intervals on the connecting arc plate (41).

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