Manual threading device

Abstract

The application provides a manual threading device, comprising a leading wire assembly and a threading assembly; the leading wire assembly comprises a hand-held rod and a magnetic suction disc arranged at one end of the hand-held rod; the threading assembly comprises a threaded tube, a magnetic suction ball arranged at one end of the threaded tube and a rotating sleeve sleeved on the outer sidewall of the threaded tube; the threaded tube is internally hollow to form a placing chamber for placing one end of a cable; at least two opposite through holes are arranged on the sidewall of the threaded tube; a trumpet mouth is arranged on the inner sidewall of the end of the rotating sleeve away from the magnetic suction ball; a clamping piece for clamping and limiting the cable by screwing the rotating sleeve is arranged between the through hole and the inner sidewall of the trumpet mouth; and the end of the magnetic suction ball is magnetically connectable with the magnetic suction disc. The application can solve the problems in the prior art, such as the easy blockage when threading some curved wire tubes, the less functions of the threading device, the less applicable cable specifications and the greater threading difficulty.

Description

Technical Field

[0001] This invention relates to the field of building construction equipment technology, and more specifically, to a manual threading device. Background Technology

[0002] Currently, electrical and plumbing wiring in building construction is mostly concealed or buried, requiring wires to be run through numerous conduits with many bends. Existing wiring methods, such as patent application number 201720524211.4, disclose a wire puller. Specifically, it uses a wire puller head, with a rigid connector connected to one end of the head, and a wire puller body connected to the rigid connector. A cable through-hole is provided at the other end of the head. The wire puller body then pulls the rigid connector, moving the head and the cable to be routed, thus completing the wire pulling process.

[0003] For example, the patent with application number 202220396891.7 discloses a cable threader. The specific method is to use a threading probe with a triangular tip and set multiple hanging ports on the inclined side of the triangular tip. When in use, the threader is passed through the pipe, and then the cable is tied to the hanging port. The threading probe is used to pass the cable through the pipe.

[0004] Current cable pullers have the following problems: they all require the use of a puller to directly pass the wire through the conduit, which is not easy to operate and can easily cause blockage when pulling wires through some curved conduits; the cable pullers have limited functions and are applicable to a limited range of cable specifications; and the different requirements for pulling wires through conduits of different lengths make the process quite difficult. Summary of the Invention

[0005] In view of the above problems, the purpose of this invention is to provide a manual wire threading device to solve the problems of the existing technology, which requires the use of a threading head to directly pass the wire through the conduit, which is not easy to operate and is prone to blockage when threading wires through some curved conduits; the wire threading device has limited functions and is applicable to a limited range of cable specifications; and the difficulty of threading wires is due to the different threading requirements for conduits of different lengths.

[0006] This invention provides a manual threading device, comprising: a lead wire assembly and a threading assembly; wherein,

[0007] The lead assembly includes a grip rod and a magnetic chuck disposed at one end of the grip rod;

[0008] The threading assembly includes a threaded tube, a magnetic ball disposed at one end of the threaded tube, and a rotating sleeve fitted onto the outer wall of the threaded tube; wherein,

[0009] The threaded tube is hollow inside, forming a placement chamber for inserting one end of the cable; at least two opposing through holes are provided on the side wall of the threaded tube; a flared opening is provided on the inner side wall of the end of the rotating sleeve away from the magnetic ball; a clamping member is provided between the inner side wall of the through hole and the flared opening, which clamps and limits the cable by twisting the rotating sleeve; the end of the magnetic ball can be magnetically connected to the magnetic chuck.

[0010] Furthermore, in a preferred embodiment, the hand grip includes a handle, an adjustable-length tube fitted inside one end of the handle, and a bracket disposed at the end of the tube; the magnetic chuck is disposed at the end of the bracket.

[0011] Furthermore, a preferred embodiment is that the bracket and the pipe are hinged together, and a torsion spring is engaged at the hinge point between the pipe and the bracket; a direction adjustment rope is provided on the outer wall of the magnetic chuck.

[0012] In addition, a preferred embodiment is that a roller is provided on the outer side wall of the handle; the direction adjustment end of the direction adjustment rope is wound around the roller.

[0013] In addition, a preferred embodiment is that the pipe fitting includes at least two levels of telescopic pipes; adjacent telescopic pipes are sleeved and connected.

[0014] Furthermore, in a preferred embodiment, the fitting includes a first telescopic tube with one end sleeved inside one end of the handle, a second telescopic tube with one end sleeved inside the other end of the first telescopic tube, and a third telescopic tube with one end sleeved inside the other end of the second telescopic tube.

[0015] Furthermore, in a preferred embodiment, the clamping member includes a clamping rod slidably disposed inside the through hole; one end of the clamping rod extends into the interior of the placement chamber, and the other end extends into the interior of the flared opening; a spring is sleeved on the outside of the clamping rod located inside the flared opening, and a protruding ring is fixedly provided at the end of the clamping rod located inside the flared opening; one end of the spring is fixedly connected to the protruding ring, and the other end of the spring is connected to the outer wall of the threaded tube.

[0016] In addition, a preferred embodiment is that an arc-shaped groove is provided on the surface of the magnetic chuck; the end of the magnetic sphere can be magnetically connected to the arc-shaped groove.

[0017] In addition, a preferred embodiment is that a number of evenly distributed protrusions are fixed on the inner wall of the arc-shaped groove; and a number of grooves that match the protrusions are formed on the outer surface of the magnetic sphere.

[0018] Furthermore, a preferred embodiment is to provide a magnetic suction element between the magnetic chuck and the magnetic sphere;

[0019] An adjustment element is provided at the hand grip end of the hand grip member for manually adjusting the angle of the magnetic suction member so that the magnetic suction plate and the magnetic suction ball are attracted to each other.

[0020] As can be seen from the above technical solution, the manual threading device provided by the present invention, through the cooperation of the lead wire assembly and the threading assembly, allows one end of the cable to be inserted into the placement chamber through the port of the threaded tube. The threaded tube is fixed by holding the magnetic ball, and the rotating sleeve is screwed on, causing the rotating sleeve to move away from the magnetic ball. During this process, the inner diameter of the flared opening at the location of the clamping member gradually decreases. The clamping member is compressed inward by the inner wall of the flared opening, thereby clamping and fixing the cable placed in the placement chamber. Then, the clamped cable... The cable threading assembly is inserted into one end of the cable threading tube, suitable for clamping and fixing cables of various specifications, and assisting in the cable threading process. Then, the lead wire assembly is inserted from the other end of the cable threading tube. Using the magnetic attraction between the magnetic chuck and the magnetic ball, the cable threading assembly is pulled out of the cable threading tube's outlet end. Different lengths of hand grips can be selected to accommodate cable threading of different lengths. Since the lead wire assembly and the cable threading assembly are inserted from both ends of the cable threading tube respectively, the problem of blockage when threading curved cable conduits is effectively solved. Moreover, the operation is simple and convenient.

[0021] To achieve the foregoing and related objectives, one or more aspects of the invention include the features that will be described in detail below. The following description and accompanying drawings illustrate certain exemplary aspects of the invention. However, these aspects indicate only a few of the various ways in which the principles of the invention can be used. Furthermore, the invention is intended to encompass all such aspects and their equivalents. Attached Figure Description

[0022] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings. In the drawings:

[0023] Figure 1 This is a schematic diagram of the lead assembly according to an embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional structural diagram of a magnetic chuck according to an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the threading assembly according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of the threaded pipe and rotating sleeve according to an embodiment of the present invention.

[0027] Figure 5 for Figure 4 An enlarged structural diagram of part A.

[0028] In the attached diagram, 11-handle, 12-first telescopic tube, 13-second telescopic tube, 14-third telescopic tube, 15-roller, 151-bracket, 16-support, 17-magnetic chuck, 171-arc groove, 21-threaded tube, 211-placement chamber, 212-through hole, 22-magnetic sphere, 23-rotating sleeve, 231-flare mouth, 24-clamping rod, 25-spring, 26-convex ring, 3-direction adjustment rope.

[0029] In all the accompanying drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed Implementation

[0030] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details.

[0031] In view of the aforementioned problems in the existing technology, such as the need to use a threading head to directly pass the wire through the conduit, which is not easy to operate and can easily cause blockage when threading wires through some curved conduits; the limited functions of the threading device and the limited range of applicable cable specifications; and the difficulty of threading due to the different threading requirements of conduits of different lengths, a manual threading device is proposed.

[0032] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0033] To illustrate the manual threading device provided by the present invention Figure 1 The structure of the lead assembly according to an embodiment of the present invention is shown; Figure 2 A cross-sectional structure of a magnetic chuck according to an embodiment of the present invention is shown; Figure 3 The structure of the threading assembly according to an embodiment of the present invention is shown; Figure 4 A cross-sectional structure of a threaded tube and a rotating sleeve according to an embodiment of the present invention is shown; Figure 5 It shows Figure 4 An enlarged structure of part A.

[0034] like Figures 1 to 5As shown, the manual threading device provided by the present invention includes: a lead wire assembly and a threading assembly; wherein, the lead wire assembly includes a hand gripping rod and a magnetic chuck 17 disposed at one end of the hand gripping rod; the threading assembly includes a threaded tube 21, a magnetic chuck 22 disposed at one end of the threaded tube 21, and a rotating sleeve 23 sleeved on the outer side wall of the threaded tube 22; wherein, the interior of the threaded tube 21 is hollow, forming a placement chamber 211 for inserting one end of the cable; at least two opposing through holes 212 are provided on the side wall of the threaded tube 21; a flared opening 231 is provided on the inner side wall of the rotating sleeve 23 at the end away from the magnetic chuck 22; a clamping member is provided between the inner side wall of the through hole 212 and the flared opening 231 for clamping and limiting the cable by twisting the rotating sleeve 23; the end of the magnetic chuck 22 is magnetically connected to the magnetic chuck 17.

[0035] The threaded tube 21 has an external thread on its outer wall and the rotating sleeve 23 has an internal thread. The rotating sleeve 23 on the outer wall of the threaded tube 21 can be screwed in by the cooperation of the external thread and the internal thread. The tightness of the two and the position of the rotating sleeve 23 on the threaded tube 21 can be adjusted by adjusting the screwing direction.

[0036] By using the lead-in assembly and the threading assembly in conjunction, one end of the cable can be inserted into the placement chamber 211 through the port of the threaded tube 21. The threaded tube is fixed by holding the magnetic ball, and the rotating sleeve is turned to move away from the magnetic ball. During this process, the inner diameter of the flared opening at the location of the clamping component gradually decreases. The clamping component is squeezed inward by the inner wall of the flared opening, thereby clamping and fixing the cable placed in the placement chamber. Then, the threading assembly holding the cable is placed into one end of the threading tube, which is suitable for clamping and fixing cables of various specifications and assisting in the cable threading action. Then, the lead-in assembly is inserted from the other end of the threading tube. Using the magnetic attraction between the magnetic chuck and the magnetic ball, the threading assembly is pulled out of the outlet end of the threading tube. Different lengths of hand grips can be selected to accommodate threading different lengths of conduit. Since the lead-in assembly and the threading assembly are inserted from both ends of the threading tube respectively, the problem of blockage when threading bent conduits is effectively solved. Moreover, the operation is simple and convenient.

[0037] In a preferred embodiment of the present invention, the hand grip includes a handle 11, an adjustable-length tube sleeved on the inner side of one end of the handle 11, and a bracket 16 disposed at the end of the tube; a magnetic chuck 17 is disposed at the end of the bracket 16. In use, by gripping the handle 11, the length of the adjustable-length tube is adjusted. The length is adjusted according to the length of the threading tube, allowing the magnetic ball 22 to be inserted from the other end of the tube and contact the magnetic chuck 17, causing the magnetic chuck 17 to adhere tightly to the magnetic ball 22. Then, when pulled back outwards, the threading assembly is dragged out of the tube, thus making it suitable for threading tubes of different lengths.

[0038] In a preferred embodiment of the present invention, the bracket 16 is hinged to the pipe, and a torsion spring is engaged at the hinge point between the pipe and the bracket 16; a direction adjustment pull rope 3 is provided on the outer wall of the magnetic chuck 17. This structural design facilitates adjustment of the angle of the magnetic chuck at curved sections of the conduit, preventing blockage during threading.

[0039] In a preferred embodiment of the present invention, a roller 15 is provided on the outer side wall of the handle 11; the direction adjustment end of the direction adjustment rope 3 is wound around the roller 15. The roller 15 is fixed to the handle 11 by a bracket 151. When threading wire through a bent pipe, the magnetic chuck 17 can be extended towards the bending position of the pipe, and the roller 15 can be moved to cause the direction adjustment rope 3 to wind around and pull the magnetic chuck 17 to deflect to a certain angle, facilitating the threading operation in the bent pipe.

[0040] In a preferred embodiment of the present invention, the fitting includes at least two telescopic tubes; adjacent telescopic tubes are sleeved and connected. The multi-stage telescopic tubes facilitate adjustment of the fitting length according to the length of the conduit, making it suitable for threading conduits of different lengths.

[0041] In a preferred embodiment of the present invention, the fitting includes a first telescopic tube 12 with one end sleeved inside one end of the handle 11, a second telescopic tube 13 with one end sleeved inside the other end of the first telescopic tube 12, and a third telescopic tube 14 with one end sleeved inside the other end of the second telescopic tube 13. The three telescopic tubes are suitable for a wide range of threading tube lengths, which is the preferred number. By gripping the handle 11, the first telescopic tube 12, the second telescopic tube 13, and the third telescopic tube 14 can be pulled out and used. The length of the tube can be adjusted according to the length of the threading tube. This allows the magnetic ball 22 to be inserted from the other end of the tube and contact the magnetic chuck 17, so that the magnetic chuck 17 and the magnetic ball 22 can be tightly attracted. When pulling back, the threading assembly can be dragged out of the tube, which is suitable for threading tubes of different lengths.

[0042] In a preferred embodiment of the present invention, the clamping member includes a clamping rod 24 slidably disposed inside the through hole 212; one end of the clamping rod 24 extends into the interior of the placement chamber 211, and the other end extends into the interior of the flared opening 231; a spring 25 is sleeved on the outside of the clamping rod 24 located inside the flared opening 231, and a protruding ring 26 is fixedly provided at the end of the clamping rod 24 located inside the flared opening 231; one end of the spring 25 is fixedly connected to the protruding ring 26, and the other end of the spring 25 is connected to the outer wall of the threaded tube 21. By holding the magnetic ball 22 to fix the threaded tube 21, and twisting the rotating sleeve 23, the rotating sleeve 23 moves away from the magnetic ball 22. During this process, the inner diameter of the flared mouth 231 at the position of the clamping rod 24 gradually decreases. Under the pressure of the inner wall of the flared mouth 231, the clamping rod 24 can overcome the elastic force of the spring 25 and retract inward. Then, each clamping rod 24 clamps and fixes the cable placed in the placement chamber 211. Then, the cable-clamping assembly is placed into one end of the cable tube. It is suitable for clamping and fixing cables of various specifications and assists in the cable threading action.

[0043] In a preferred embodiment of the present invention, an arc-shaped groove 171 is provided on the surface of the magnetic chuck 17; the end of the magnetic ball 22 is magnetically connected to the arc-shaped groove 171. This makes the magnetic chuck 17 and the magnetic ball 22 more tightly fixed when magnetically attracted.

[0044] In a preferred embodiment of the present invention, a plurality of evenly distributed protrusions are fixed on the inner wall of the arc-shaped groove 171; and a plurality of grooves adapted to the protrusions are formed on the outer surface of the magnetic sphere. This further increases the tightness of the magnetic chuck 17 and the magnetic sphere 22 when they are magnetically attracted.

[0045] In a preferred embodiment of the present invention, a magnetic suction element is provided between the magnetic chuck 17 and the magnetic ball 22; an adjustment element is provided at the handle end of the gripping rod for manually adjusting the angle of the magnetic suction element so that the magnetic chuck 17 and the magnetic ball 22 are attracted to each other. When threading wire through a curved tube, the magnetic chuck 17 can be extended towards the curved position of the tube, and the roller 15 can be turned so that the direction adjustment rope 3 is wound around and pulled to deflect the magnetic chuck 17 to a certain angle. Then, by rotating the handle 11 externally, the deflected magnetic chuck 17 finds the position of the magnetic ball 22 until the magnetic chuck and the magnetic ball 22 are attracted to each other. By pulling back the handle 11, the threading assembly can be pulled out of the tube. The magnetic chuck 17 and the magnetic ball 22 are controlled by the magnetic suction element to control the position and angle of the magnetic attraction. The adjustment element for adjusting the working state and working angle of the magnetic suction element is provided on the handle 11, making operation and control more convenient.

[0046] As can be seen from the above specific embodiments, the manual threading device provided by the present invention, through the cooperation of the lead wire assembly and the threading assembly, allows one end of the cable to be inserted into the placement chamber through the port of the threaded tube. The threaded tube is fixed by holding the magnetic ball, and the rotating sleeve is screwed on, causing the rotating sleeve to move away from the magnetic ball. During this process, the inner diameter of the flared opening at the location of the clamping member gradually decreases. The clamping member is compressed inward by the inner wall of the flared opening, thereby clamping and fixing the cable placed in the placement chamber. Then, the clamped cable... The cable threading assembly is inserted into one end of the threading tube, suitable for clamping and fixing cables of various specifications, and assisting in the cable threading process. Then, the lead wire assembly is inserted from the other end of the threading tube. Using the magnetic attraction between the magnetic chuck and the magnetic ball, the threading assembly is pulled out of the cable outlet end of the threading tube. Different lengths of hand grips can be selected to accommodate threading cables of different lengths. Since the lead wire assembly and the threading assembly are inserted from both ends of the threading tube respectively, the problem of blockage when threading cables through bent conduits is effectively solved. Moreover, the operation is simple and convenient.

[0047] The manual threading device according to the present invention has been described above by way of example with reference to the accompanying drawings. However, those skilled in the art will understand that various modifications can be made to the manual threading device according to the present invention without departing from the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the contents of the appended claims.

Claims

1. A manual threading device, characterized in that, include: Lead wire assembly and threading assembly; among which, The lead assembly includes a grip rod and a magnetic chuck at one end of the grip rod; the grip rod includes a handle, an adjustable-length tube sleeved on the inner side of one end of the handle, and a bracket at the end of the tube; the magnetic chuck is located at the end of the bracket; the bracket and the tube are hinged together, and a torsion spring is engaged at the hinge point between the tube and the bracket; a direction adjustment rope is provided on the outer wall of the magnetic chuck; a roller is provided on the outer wall of the handle; the direction adjustment end of the direction adjustment rope is wound around the roller. The threading assembly includes a threaded tube, a magnetic ball disposed at one end of the threaded tube, and a rotating sleeve fitted onto the outer wall of the threaded tube; wherein, The threaded tube is hollow inside, forming a placement chamber for inserting one end of the cable; at least two opposing through holes are provided on the side wall of the threaded tube; a flared opening is provided on the inner side wall of the end of the rotating sleeve away from the magnetic ball; a clamping member is provided between the inner side wall of the through hole and the flared opening, which clamps and limits the cable by twisting the rotating sleeve; the end of the magnetic ball can be magnetically connected to the magnetic chuck.

2. The manual threading device according to claim 1, characterized in that, The pipe fitting includes at least two stages of telescopic pipe; Adjacent expansion joints are connected by a sleeve.

3. The manual threading device according to claim 2, characterized in that, The fitting includes a first telescopic tube with one end sleeved inside one end of the handle, a second telescopic tube with one end sleeved inside the other end of the first telescopic tube, and a third telescopic tube with one end sleeved inside the other end of the second telescopic tube.

4. The manual threading device according to claim 1, characterized in that, The clamping member includes a clamping rod that is slidably disposed inside the through hole; One end of the clamping rod extends into the interior of the placement chamber, and the other end extends into the interior of the flared opening. A spring is sleeved on the outside of the clamping rod located inside the flared opening, and a protruding ring is fixed at the end of the clamping rod located inside the flared opening. One end of the spring is fixedly connected to the convex ring, and the other end of the spring is connected to the outer wall of the threaded tube.

5. The manual threading device according to claim 1, characterized in that, An arc-shaped groove is provided on the surface of the magnetic chuck; The end of the magnetic sphere can be magnetically connected to the arc-shaped groove.

6. The manual threading device according to claim 5, characterized in that, Several evenly distributed protrusions are fixed on the inner wall of the arc-shaped groove; Several grooves that match the protrusions are formed on the outer surface of the magnetic sphere.

7. The manual threading device according to claim 1, characterized in that, A magnetic suction element is provided between the magnetic chuck and the magnetic sphere; An adjustment element is provided at the hand grip end of the hand grip member for manually adjusting the angle of the magnetic suction member so that the magnetic suction plate and the magnetic suction ball are attracted to each other.

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