Wire threading device

Abstract

The present invention is applicable to the technical field of wire threading equipment, and provides a wire threading device, comprising: a handheld main body, a driving part embedded in the interior of which, the handheld main body is provided with a protective shell, and the handheld main body is provided with a wire tube inserted on the wire tube; a wire wheel connected to the output shaft of the driving part, the wire wheel is rotatably connected to the interior of the protective shell, and the driving part controls the forward and reverse rotation of the wire wheel; a metal wire, which is wound on the wire wheel, and the free end of the metal wire extends from the interior of the protective shell to the outside of the protective shell and is passed through the wire tube. Therefore, the present invention provides an automatic wire feeding and winding device to ensure that the threading power is uniform when the metal wire is inserted, and the wire pulling power is uniform when the wire is pulled, and the stuck state is automatically handled, and the degree of automation is high.

Description

Technical Field

[0001] The present invention relates to the technical field of wire threading equipment, and in particular to a wire threading device. Background Art

[0002] When wiring the wires, the method of pre-buried wire tubes is adopted, and the wires are later passed through the pre-buried wire tubes to realize the wiring and threading process of the wires.

[0003] In traditional wire threading construction, the operator must first manually thread the metal wire into the pre-buried wire tube, and after the metal wire comes out from the other end of the wire tube, it is fixed to the wire to be laid, and then the wire is pulled by human power. This process has significant drawbacks:

[0004] 1. The tension adjustment during the pulling process depends entirely on the operator's experience, which may result in insufficient tension and failure to move the wire, or excessive tension causing damage or even breakage of the wire insulation layer.

[0005] 2. Once the wires are stuck in the conduit, there is no effective means of disposal and the only way to deal with it is to pull them back.

[0006] In recent years, wire threading devices have been gradually introduced into wire construction. Although these devices replace manual pulling with mechanical transmission, they still have significant shortcomings in practical use. When a wire becomes stuck during threading, the devices lack an effective automatic handling mechanism, requiring manual intervention to fully remove the wire and restart the process, seriously affecting construction efficiency. These shortcomings are primarily manifested in insufficiently precise control of pulling force and a lack of automated response capabilities to sudden jams.

[0007] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Invention

[0008] In response to the above-mentioned defects, the purpose of the present invention is to provide a wire threading device, which can ensure that the threading power is uniform when inserting the metal wire by setting an automatic wire feeding and wire taking-up device, and the wire pulling power is uniform when pulling the wire, and automatically deal with the stuck state of the wire and the metal wire, with a high degree of automation.

[0009] In order to achieve the above-mentioned purpose, the present invention provides a wire threading device, comprising: a handheld main body, in which a driving member is embedded, a protective shell is provided on the handheld main body, and a wire tube inserted into the wire tube is provided on the handheld main body; a wire wheel connected to the output shaft of the driving member, the wire wheel is rotatably connected to the interior of the protective shell, and the driving member controls the forward and reverse rotation of the wire wheel; a metal wire, which is wound on the wire wheel, and the free end of the metal wire extends from the interior of the protective shell to the outside of the protective shell and is passed through the wire tube.

[0010] In one embodiment, the bottom of the reel is rotatably connected to a control member, and the output shaft and the reel are connected via a torsion bearing. In the winding state, when the wire tension increases to a predetermined value, the output shaft and the reel rotate relative to each other and drive the control member to periodically impact the reel.

[0011] In one embodiment, the control element comprises:

[0012] Rotating a rotating sleeve connected to the bottom of the reel;

[0013] An impact rod is arranged on the outer wall of the rotating sleeve, and an impact protrusion is provided at the bottom of the wire wheel corresponding to the impact rod, and the impact rod is subjected to force to impact the impact protrusion.

[0014] In one embodiment, a mounting flange is provided at the bottom of the wire wheel, and an elastic member is provided between the mounting flange and the impact rod to drive the impact rod to impact the mounting flange. The output shaft drives the rotating sleeve to rotate a certain angle and drives the elastic member to store elastic potential energy. After driving the rotating sleeve to rotate a certain angle, the output shaft is released to cause the impact rod to impact the mounting flange.

[0015] In one embodiment, an elastic member is provided between the rotating sleeve and the wire wheel, and the impact rod impacts the impact protrusion under the elastic force of the elastic member.

[0016] In one embodiment, an inner ring gear is provided on the inner side of the rotating sleeve, a partial gear is provided on the outer wall of the output shaft, and an intermediate gear is provided between the partial gear and the inner ring gear. When the output shaft and the spool rotate relative to each other, the partial gear periodically engages with the intermediate gear. When the intermediate gear engages with the partial gear, the rotating sleeve is driven to store elastic potential energy for the elastic member, and when the partial gear disengages from the intermediate gear, the elastic member releases the elastic potential energy to impact the impact protrusion.

[0017] In one embodiment, a plug-in tube is provided at the front end of the wire tube, and the plug-in tube is a hose. A metal wire channel is provided inside the wire tube, and a wire outlet is provided on the outside of the protective shell. The wire outlet and the metal wire channel are connected through the wire tube.

[0018] In one embodiment, a clamping hexagon is provided at the bottom of the output shaft, and a clamping groove corresponding to the clamping hexagon is provided on the driving shaft of the driving member, and the clamping hexagon is inserted into the inside of the clamping groove.

[0019] In one embodiment, the outer ring of the spool is provided with a winding groove, the bottom of the spool is provided with a rotating ring groove corresponding to the rotating sleeve, and the spool is provided with an installation hole for installing the intermediate gear on the inner side of the rotating ring groove.

[0020] In one embodiment, a lever handle is provided at the bottom of the handheld body, and a switching switch for controlling the forward and reverse rotation of the driving member and an on-off switch for controlling the on and off of the driving member are also provided on the handheld body.

[0021] In summary, the technical effects produced by the present invention are:

[0022] 1. By setting up a rotating drive member that uses gas or electricity to ensure that appropriate power is provided when the wire is needed to be taken up and paid out, the speed of laying the wire is increased, and at the same time, the automation of the pay-out and take-up functions is ensured, the laying speed of the wire in the pipe is effectively controlled, and the wire is prevented from getting stuck in the pipe;

[0023] 2. The torsion bearing is used to limit the power of the wire pulling. When the wire pulling force exceeds the limit of the torsion bearing, the wire is judged to be in a stuck state. Then, the power of the wire pulling is appropriately increased to pull the wire. At the same time, when the wire is stuck, repeated impact force is applied to the wire through repeated collisions, thereby breaking through the wire sticking point and ensuring the automation of the wire threading. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic cross-sectional structure diagram of the present invention;

[0026] Figure 3 1 is a schematic diagram of the cross-sectional structure of the control component of the present invention;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the handheld main body of the present invention;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the wire wheel of the present invention;

[0029] Figure 6 It is a three-dimensional schematic diagram of the structural control member of the present invention;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the output shaft of the present invention;

[0031] In the figure, 1-plug-in tube, 2-conductor tube, 3-hand-held body, 31-switching switch, 32-on-off switch, 33-leverage handle, 34-clamping groove, 4-wire channel, 5-protective shell, 6-cover plate, 7-wire outlet, 8-wire wheel, 81-winding groove, 82-impact protrusion, 83-mounting flange, 84-rotating ring groove, 85-mounting hole, 9-control part, 91-impact rod, 92-inner ring gear, 93-limiting flange, 94-rotating sleeve, 10-output shaft, 101-clamping hexagon, 102-part gear, 11-torsion bearing, 12-elastic part, 13-intermediate gear, 14-driving part. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] See also Figure 1 、 Figure 2 and Figure 3The present invention provides a wire threading device, which includes: a handheld main body 3, in which a driving member 14 is embedded, and the driving member 14 is fixedly connected to the inside of the handheld main body and can be fixed by means of screws or other devices. In order to ensure the driving force connection of the driving member 14, the connecting wire of the driving member 14 can be led out of the handheld main body 3, and the connecting wire can be an electric wire or a gas pipeline. Then, the driving member 14 is driven to rotate by energizing or ventilating the connecting wire. The driving member 14 can adopt a pneumatic motor or an electric motor to ensure the rotational force of the reel 8 when winding and releasing the line. A protective shell 5 is provided on the handheld main body 3, and a detachable connecting cover 6 is provided on the top of the protective shell 5 to ensure the protection of the inside of the protective shell 5. The parts are protected, and a wire tube 2 inserted into the wire pipe is provided on the handheld body 3. The wire tube 2 is provided to guide the metal wire to reduce the risk of skew and jamming of the metal wire during transportation; the wire wheel 8 is connected to the output shaft 10 of the driving member 14, and the wire wheel 8 is rotatably connected to the inside of the protective shell 5. The driving member 14 controls the forward and reverse rotation of the wire wheel 8. The forward and reverse rotation of the wire wheel 8 realizes the wire feeding and winding process; the metal wire is wound on the wire wheel 8, and the free end of the metal wire extends from the inside of the protective shell 5 to the outside of the protective shell 5 and is passed through the wire tube 2, ensuring that when feeding the wire, the metal wire can directly enter the inside of the wire pipe arranged inside the wall through the wire tube 2 to realize the threading process.

[0036] Among them, the head of the free end of the metal wire can be provided with a spherical threading head (existing technology, no longer repeated) to ensure the smooth passage of the metal wire through the wire tube. At the same time, the front end of the wire tube 2 is provided with a plug-in tube 1, which is a hose, which is convenient for inserting the end of the wire tube 2 into the interior of the wire tube, so that when feeding the wire, the metal wire can better enter the interior of the wire tube. A metal wire channel 4 is provided inside the wire tube 2, and a wire outlet 7 is provided on the outside of the protective shell 5. The wire outlet 7 is connected to the metal wire channel 4 through the wire tube 2, ensuring that when the wire wheel 8 rotates, it can push the metal wire to move inside the metal wire channel 4, thereby ensuring the pushing force and pulling force of the metal wire.

[0037] Preferably, the bottom of the reel 8 is rotatably connected to a control member 9, and the output shaft 10 is connected to the reel 8 by a torsion bearing 11, ensuring that the maximum force of the reel 8 when winding the line is limited by the torsion bearing 11, to prevent the force from being too large during the winding process, resulting in the wire being broken and damaged. During operation, in the winding state, when the wire tension increases to a predetermined value, the wire pulling force applied to the reel 8 increases and breaks through the limit value of the torsion bearing 11, and the output shaft 10 and the reel 8 rotate relative to each other and drive the control member 9 to periodically impact the reel 8. At this time, under the action of the periodic impact of the control member 9, the reel 8 simulates the state of a person exerting force suddenly when dragging, and gradually moves the wire inside the wire tube at the stuck position until the joint is freed from the stuck position, completing the wire threading process.

[0038] In an exemplary embodiment of the present application, Figure 5 and Figure 6 , the control element 9 includes:

[0039] Rotate the rotating sleeve 94 connected to the bottom of the reel 8. A limiting flange 93 is provided on the top of the rotating sleeve 94 to ensure that the rotating sleeve 94 does not fall from the bottom of the reel 8, thereby ensuring the normal use of the rotating sleeve 94.

[0040] An impact rod 91 is arranged on the outer wall of the rotating sleeve 94, and an impact protrusion 82 corresponding to the impact rod 91 is provided at the bottom of the reel 8. The impact rod 91 is subjected to force to impact the impact protrusion 82, thereby converting the impact force into the rotational force of the reel 8, realizing the process of simulating manual threading, and dragging the stuck joint out of the stuck position.

[0041] In addition, a mounting flange 83 is provided at the bottom of the reel 8, and an elastic member 12 is provided between the mounting flange 83 and the impact rod 91 to cause the impact rod 91 to impact the mounting flange 83. The elastic member 12 can be a thrust spring, and the output shaft 10 drives the rotating sleeve 94 to rotate a certain angle and drives the elastic member 12 to store elastic potential energy. In this embodiment, it is a compression thrust spring to store elastic potential energy. It can also be set as a tension spring according to the position of the mounting flange 83. In this case, it is an elongated tension spring. After driving the rotating sleeve 94 to rotate a certain angle, the output shaft 10 is released to cause the impact rod 91 to impact the mounting flange 83. During the release process, the elastic member 12 releases the stored potential energy and converts it into kinetic energy of the impact rod 91. The impact rod 91 impacts the impact protrusion 82, so that the reel 8 has a larger acceleration, simulating the state of sudden human force, thereby pulling out the stuck thread end.

[0042] In another embodiment, an elastic member 12 is provided between the rotating sleeve 94 and the reel 8. In this case, the elastic member 12 is a torsion spring. By providing the torsion spring, the cost of providing the impact protrusion 82 on the reel 8 is reduced, thereby reducing the manufacturing cost. The impact rod 91 is subjected to the elastic force of the elastic member 12 to impact the impact protrusion 82.

[0043] In an exemplary embodiment, in combination Figure 3 、 Figure 6 and Figure 7 In order to ensure the normal installation and use of the control member 9, an inner ring gear 92 is provided on the inner side of the rotating sleeve 94, and a partial gear 102 is provided on the outer wall of the output shaft 10. An intermediate gear 13 is provided between the partial gear 102 and the inner ring gear 92 to ensure that when in use, when the output shaft 10 and the spool 8 rotate relative to each other, the output shaft 10 and the rotating sleeve 94 can achieve opposite rotation, thereby ensuring that the power of the output shaft 10 is converted into the stored potential energy of the rotating sleeve 94, ensuring that when the potential energy is released, the rotation direction of the rotating sleeve 94 and the output shaft 10 is pushed. Similarly, the further impact causes the wire wheel 8 to rotate in the same direction as the output shaft 10, realizing the function of pulling the wire. The partial gear 102 periodically engages with the intermediate gear 13. When the intermediate gear 13 engages with the partial gear 102, the driving rotating sleeve 94 stores elastic potential energy for the elastic member 12 and when the partial gear 102 disengages from the intermediate gear 13, the elastic member 12 releases the elastic potential energy to impact the impact protrusion 82, thereby completing the impact rotation effect of the wire wheel 8, ensuring that a larger impact force is applied to the wire wheel 8, thereby pulling out the stuck wire end.

[0044] Among them, in order to ensure the normal driving of the output shaft 10 on the control part 9, the outer ring of the spool 8 is provided with a winding groove 81, and the bottom of the spool 8 is provided with a rotating ring groove 84 corresponding to the rotating sleeve 94. The spool 8 is located on the inner side of the rotating ring groove 84 and is provided with a mounting hole 85 for installing the intermediate gear 13, ensuring the normal installation of the intermediate gear 13. At the same time, while ensuring that the output shaft 10 and the spool 8 rotate relative to each other, the control part 9 can be driven to rotate in the opposite direction, further ensuring the impact force that drives the spool 8 to rotate when it collides with the spool 8.

[0045] At the same time, combined Figure 2 、 Figure 3 、 Figure 4 and Figure 7 In order to ensure the control of the line wheel 8, a clamping hexagon 101 is provided at the bottom of the output shaft 10, and a clamping groove 34 corresponding to the clamping hexagon 101 is provided on the driving shaft of the driving member 14. The clamping hexagon 101 is inserted into the inside of the clamping groove 34, ensuring that the output shaft 10 can be driven to rotate synchronously by the rotation of the driving member 14, and it is also convenient for the installation of the output shaft 10. A lever handle 33 is provided at the bottom of the handheld body 3, and the handheld body 3 is also provided with a switching switch 31 for controlling the forward and reverse rotation of the driving member 14 and an on-off switch 32 for controlling the on and off of the driving member 14.

[0046] When using, see Figures 1 to 7When it is necessary to insert the metal wire into the inside of the wire tube, the metal wire is inserted into the inside of the metal wire channel 4, and then the plug tube 1 is inserted into the inside of the corresponding wire tube. By manually operating the switch 31, it is switched to the forward rotation state, and the driving member 14 drives the wire wheel 8 to rotate at a constant speed. At this time, the metal wire is evenly fed into the inside of the wire tube until the free end of the metal wire is transmitted from the other end of the wire tube. Then, the wire to be inserted is directly fixed to the end of the metal wire. In order to ensure the smoothness of the wire threading, a fixing ring can be provided at the end of the wire tube. The fixing ring can be a disc-shaped metal sheet inserted into the wire tube. A plurality of through holes are opened on the metal sheet. The wires are correspondingly inserted into the through holes of the metal sheet to fix the position of the wires. Then the wire wheel 8 is switched to the reverse state. At this time, the wire wheel 8 is reversed to fix the wire. The wire is pulled into the interior of the wire tube. When the internal friction of the wire in the wire tube increases, when the friction force is greater than the limit force of the torsion bearing 11, the output shaft 10 and the spool 8 rotate relative to each other, and the partial gear 102 engages with the intermediate gear 13 and prompts the rotating sleeve 94 to compress the elastic part 12. At this time, the pulling force of the spool 8 increases, acting on the wire. If the wire slides under the increased force at this time, the spool 8 can normally pull the wire for threading. When the partial gear 102 is disengaged from the intermediate gear 13, under the action of the elastic part 12, the impact rod 91 is pushed to impact the impact protrusion 82, thereby achieving the effect of suddenly adding force to the spool 8, thereby realizing the simulation of human dragging, ensuring that the wire gradually breaks away from the stuck position, and achieving the effect of automatic threading.

[0047] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A wire threading device, characterized in that: include: A handheld body, wherein a driving member is embedded in the interior, a protective shell is provided on the handheld body, and a wire tube is provided on the handheld body to be inserted into the wire tube; A wire wheel connected to the output shaft of the driving member, the wire wheel is rotatably connected to the interior of the protective housing, and the driving member controls the forward and reverse rotation of the wire wheel; a metal wire wound on the reel, wherein a free end of the metal wire extends from the interior of the protective housing to the exterior of the protective housing and passes through the wire conduit; The bottom of the reel is rotatably connected to a control member, and the output shaft and the reel are connected by a torsion bearing. In the winding state, when the wire tension increases to a predetermined value, the output shaft and the reel rotate relative to each other and drive the control member to periodically impact the reel.

2. The wire threading device according to claim 1, characterized in that: The control element includes: Rotating a rotating sleeve connected to the bottom of the reel; An impact rod is arranged on the outer wall of the rotating sleeve, and an impact protrusion is provided at the bottom of the wire wheel corresponding to the impact rod, and the impact rod is subjected to force to impact the impact protrusion.

3. The wire threading device according to claim 2, characterized in that: A mounting flange is provided at the bottom of the wire wheel, and an elastic member is provided between the mounting flange and the impact rod to drive the impact rod to impact the mounting flange. The output shaft drives the rotating sleeve to rotate a certain angle and drives the elastic member to store elastic potential energy. After driving the rotating sleeve to rotate a certain angle, the output shaft is released to cause the impact rod to impact the mounting flange.

4. The wire threading device according to claim 2, characterized in that: An elastic member is provided between the rotating sleeve and the wire wheel, and the impact rod impacts the impact protrusion under the elastic force of the elastic member.

5. The electric wire threading device according to any one of claims 2 to 4, characterized in that: An inner gear ring is provided on the inner side of the rotating sleeve, a partial gear is provided on the outer wall of the output shaft, and an intermediate gear is provided between the partial gear and the inner gear ring. When the output shaft and the spool rotate relative to each other, the partial gear periodically engages with the intermediate gear. When the intermediate gear engages with the partial gear, the rotating sleeve is driven to store elastic potential energy in the elastic member, and when the partial gear disengages from the intermediate gear, the elastic member releases the elastic potential energy to impact the impact protrusion.

6. The wire threading device according to claim 1, characterized in that: The front end of the wire tube is provided with a plug-in tube, which is a hose. A metal wire channel is provided inside the wire tube, and an outlet is provided on the outside of the protective shell. The outlet and the metal wire channel are connected through the wire tube.

7. The wire threading device according to claim 1, characterized in that: A clamping hexagon is provided at the bottom of the output shaft, and a clamping groove corresponding to the clamping hexagon is provided on the driving shaft of the driving member, and the clamping hexagon is inserted into the inside of the clamping groove.

8. The electric wire threading device according to claim 5, characterized in that: The outer ring of the spool is provided with a winding groove, the bottom of the spool is provided with a rotating ring groove corresponding to the rotating sleeve, and the spool is provided with a mounting hole for installing an intermediate gear on the inner side of the rotating ring groove.

9. The wire threading device according to claim 1, characterized in that: A lever handle is provided at the bottom of the handheld body, and a switching switch for controlling the forward and reverse rotation of the driving member and an on-off switch for controlling the on and off of the driving member are also provided on the handheld body.

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