Threading apparatus for building electrical construction

Abstract

The utility model relates to the technical field of threading apparatuses, in particular to a threading apparatus for building electrical construction, which comprises a bracket, a winding disc, a threading rope and a connecting assembly, the connecting assembly comprises a shell, a rotating shaft, a torsion spring, clamping cams and a driving component, during use, the shell penetrates through the bridge frame and extends out of the other end of the bridge frame, then the end part of a cable extends into an insertion hole in the shell, the cable extends between the two clamping cams, at the moment, the two clamping cams are driven to rotate due to the elasticity of the torsion spring, and the cable is clamped in the clamping cams; a bulge on the clamping cam is pressed to the surface of the cable; the cable is wound by rotating the winding disc, then the cable is driven to penetrate through the bridge, and after the cable is pulled, the clamping cam is in contact with the surface of the cable, so that the clamping cam rotates under the action of friction force, a bulge on the clamping cam is attached to the surface of the cable, and the cable is firmly clamped.

Description

TECHNICAL FIELD

[0001] The utility model relates to a threading device technical field especially, it relates to a threading device for building electrical construction. BACKGROUND

[0002] In the process of building electrical construction, the cable needs to be threaded through the bridge, and a threading device is needed to assist threading in this process. The traditional threading device is prone to looseness when winding the threading rope.

[0003] The prior art CN222127476 U discloses a construction threading device, which comprises a threading device main body and an auxiliary mechanism. The threading device main body comprises a support frame, a reel and a rotating rod. The reel is arranged on the inner side of the support frame. One end of the rotating rod is fixedly connected to the front side and the rear side of the reel. The other end of the rotating rod penetrates through the front side and the rear side of the support frame, respectively. The auxiliary mechanism is arranged on the inner side of the support frame. The auxiliary mechanism comprises a support plate, a servo motor, a cylinder, a track groove, a connecting rod and an output wheel. When the worker finishes using the threading device and needs to wind it onto the reel, the threading device can be first threaded through the threading ring, and then one end of the threading device is wound and fixed on the reel. Subsequently, the servo motor is started and reversed. The reversal of the servo motor can drive the connecting rod and the output wheel to rotate. The rotation of the output wheel can drive the pulley to rotate through the belt. The rotation of the pulley can drive the rotating rod to rotate, and the rotation of the rotating rod can drive the reel to rotate. The rotation of the reel can wind the threading device on the reel. At the same time, the rotation of the connecting rod can drive the cylinder to rotate, and the rotation of the cylinder can drive the limiting column to slide along the track groove. The sliding rod can slide left and right in the active groove under the cooperation of the sliding rod and the active groove. The left and right sliding of the sliding rod can drive the threading ring to move left and right in a cycle. The left and right movement of the threading ring can drive the threading device inside to move left and right in a cycle. Thus, the threading device can be uniformly wound on the winding disc.

[0004] The above-mentioned device can uniformly wind the threading rope on the winding disc. However, when connecting the cable and the threading rope, it is necessary to connect the cable and the threading rope through hooks, adhesive tapes and other means. This not only complicates the operation, but also makes the cable easy to separate from the threading rope. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a threading device for building electrical construction, which solves the problem that the existing construction threading device needs to connect the cable and the threading rope through hooks, adhesive tapes and other means, which not only complicates the operation, but also makes the cable easy to separate from the threading rope.

[0006] In order to achieve the above object, the utility model provides a threading device for building electrical construction, including support, winding disc and threading rope, the winding disc rotates installation on the support, one end of the threading rope is connected with the winding disc, and the threading rope is wound on the winding disc, still include connecting assembly, the connecting assembly includes shell, pivot, torsional spring, clamping cam and drive member, the shell is connected with the threading rope, and is located one end of the threading rope, the pivot is rotatably connected with the shell, and is located inside the shell, both ends of the torsional spring are connected with the pivot and the shell, the torsional spring is covered on the shell, the clamping cam is fixedly connected with the pivot, and is covered on the pivot, the drive member is used for driving the pivot rotation.

[0007] Among them, the clamping cam has the recess, the recess is arc, and the recess is arranged in the clamping cam middle part.

[0008] Among them, the connecting assembly still includes antiskid strip, the antiskid strip is fixedly connected with the clamping cam, and the antiskid strip is arranged in the recess.

[0009] Among them, the drive member includes gear and rack, the gear is fixedly connected with the pivot, and is located one end of the pivot, the rack is slidably connected with the shell, and is engaged with the gear.

[0010] Among them, the drive member still includes connecting plate and push rod, the connecting plate is fixedly connected with the rack, and is arranged on the rack, the push rod is fixedly connected with the connecting plate, and the end of the push rod away from the connecting plate protrudes from the shell.

[0011] The utility model discloses a threading device for building electrical construction, when using, the shell is passed through the bridge frame and is stretched out from the other end of bridge frame, then the end of cable is stretched into the insertion hole on the shell, and makes the cable stretch between two clamping cams, at this moment, because the elastic drive of torsional spring two clamping cams rotate, make the protrusion on the clamping cam press to the cable surface, then through the winding of winding disc to the threading rope, and then drive cable to pass through the bridge frame, after the tension of cable, because the clamping cam and the cable surface contact, like this make the clamping cam rotate under the friction, and then make the protrusion on the clamping cam adhere to the cable surface, thereby realize the firm clamping of cable, when cable passes through the bridge frame, through the drive member drive pivot rotation, and then drive clamping cam rotation, at this moment, cable can be taken out from the shell, during the connection of cable, the staff can pass to two clamping cams between cable, convenient operation, when the cable is under tension, the clamping cam rotates, further increase the force of cable clamping, realize convenient use, avoid the purpose of cable loosening. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0013] Figure 1 This is a schematic diagram of the overall structure of the wiring device for building electrical construction according to this utility model.

[0014] Figure 2 This is a structural schematic diagram of the driving component of this utility model.

[0015] Figure 3 This is a schematic diagram of the installation structure of the torsion spring of this utility model.

[0016] Figure 4 This is a schematic diagram of the installation structure of the clamping cam of this utility model.

[0017] Figure 5 This is a schematic diagram of the groove structure of this utility model.

[0018] In the diagram: 101-Bracket, 102-Rewinding reel, 103-Threading rope, 104-Connecting component, 105-Housing shell, 106-Shaft, 107-Torsion spring, 108-Clamping cam, 109-Drive component, 110-Groove, 111-Anti-slip strip, 112-Gear, 113-Rack, 114-Connecting plate, 115-Push rod. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1 to 5 ,in Figure 1 This is a schematic diagram of the overall structure of a wiring harness used in building electrical construction. Figure 2 This is a structural diagram of the driving component. Figure 3 This is a schematic diagram of the torsion spring's installation structure. Figure 4 This is a schematic diagram of the mounting structure for the clamping cam. Figure 5 This is a schematic diagram of the groove structure.

[0021] The utility model provides a building electrical construction is with threading device, including support 101, winding disc 102, threading rope 103 and connecting assembly 104, connecting assembly 104 includes shell 105, pivot 106, torsional spring 107, clamping cam 108, drive member 109 and antiskid strip 111, clamping cam 108 has recess 110, drive member 109 includes gear 112, rack 113, connecting plate 114 and push rod 115, by the cable is reached between two clamping cam 108, make cable receive tension, clamping cam 108 rotates under the action of friction, and then make the protruding on clamping cam 108 closely contact cable surface, thereby promote clamping force, avoid cable to come loose, it can be understood that, the preceding scheme can be used when the cable and threading rope 103 are connected conveniently, and can also be used when driving pivot 106 rotates.

[0022] For this specific embodiment, the winding disc 102 is rotatably installed on the support 101, one end of the threading rope 103 is connected to the winding disc 102, and the threading rope 103 is wound on the winding disc 102. The winding disc 102 is used for winding the threading rope 103. The support 101 is also provided with an auxiliary mechanism (not shown in the figure), which is used for winding the threading rope 103 uniformly on the winding disc 102. The structure and principle of the auxiliary mechanism have been disclosed in the patent with publication number CN222127476 U, and will not be described in detail here.

[0023] Among them, the shell 105 is connected with the threading rope 103 and located at one end of the threading rope 103, the pivot 106 is rotatably connected with the shell 105 and located inside the shell 105, the torsional spring 107 has two ends respectively connected with the pivot 106 and the shell 105, the torsional spring 107 is sleeved on the shell 105, the clamping cam 108 is fixedly connected with the pivot 106 and sleeved on the pivot 106, and the drive member 109 is used for driving the pivot 106 to rotate; the pivot 106 and the clamping cam 108 are provided with two and located on both sides of the shell 105, the clamping cam 108 is provided with a protrusion, the pivot 106 is provided with two torsional springs 107, and the two torsional springs 107 are located at both ends of the pivot 106; the shell 105 is spindle-shaped, which can reduce the risk of being stuck when the shell 105 passes through the bridge; the side of the shell 105 away from the threading rope 103 is provided with an insertion hole.

[0024] In use, the shell 105 is passed through the bridge and extended from the other end of the bridge, and then the end of the cable is inserted into the insertion hole on the shell 105, and the cable is inserted between the two clamping cams 108, at this time the elastic drive of the torsional spring 107 drives the two clamping cams 108 to rotate, and the protrusions on the clamping cams 108 are pressed against the surface of the cable; then the winding rope 103 is wound by rotating the winding disc 102, thereby driving the cable to pass through the bridge, and when the cable is subjected to tension, the clamping cams 108 rotate under the action of friction due to the contact between the clamping cams 108 and the surface of the cable, thereby making the protrusions on the clamping cams 108 fit the surface of the cable, thereby achieving firm clamping of the cable, and when the cable passes through the bridge, the rotation of the shaft 106 is driven by the driving member 109, thereby driving the clamping cams 108 to rotate, at this time the cable can be taken out of the shell 105, and during connection of the cable, the cable is passed between the two clamping cams 108, which is convenient to operate, and when the cable is subjected to tension, the clamping cams 108 rotate, thereby further increasing the clamping force on the cable, achieving convenient use, and avoiding loosening of the cable.

[0025] Secondly, the groove 110 is arc-shaped, and is arranged in the middle of the clamping cam 108; through the groove 110, the contact area between the clamping cam 108 and the cable is increased, thereby increasing the friction between the cable and the clamping cam 108.

[0026] Meanwhile, the anti-skid strip 111 is fixedly connected with the clamping cam 108, and is arranged in the groove 110; a clamping cam 108 is provided with a plurality of anti-skid strips 111, and the plurality of anti-skid strips 111 are evenly arranged in the groove 110, and the anti-skid strips 111 further prevent the cable from slipping with the clamping cam 108.

[0027] In addition, the gear 112 is fixedly connected with the shaft 106 and located at one end of the shaft 106; the rack 113 is slidingly connected with the shell 105 and engaged with the gear 112; two gears 112 are arranged on one shaft 106, and the two gears 112 are located at two ends of the shaft 106, and the rack 113 is provided with four and engaged with four gears 112.

[0028] Finally, the connecting plate 114 is fixedly connected with the rack 113 and arranged on the rack 113; the push rod 115 is fixedly connected with the connecting plate 114, and an end of the push rod 115 away from the connecting plate 114 extends out of the shell 105; one connecting plate 114 is connected with two racks 113, by pushing the push rod 115 to move, the push rod 115 drives the rack 113 to move, since the rack 113 is engaged with the gear 112, thereby the movement of the rack 113 drives the gear 112 to rotate, the gear 112 drives the rotating shaft 106 and the clamping cam 108 to rotate, the purpose of driving the rotating shaft 106 to rotate is achieved.

[0029] When the threading device for building electrical construction is used, the cable is threaded between the two clamping cams 108, the rotating shaft 106 and the clamping cam 108 are driven to rotate by the elasticity of the torsional spring 107, the protrusions on the clamping cam 108 have a tendency to rotate towards the cable, when the cable is subjected to tension, the clamping cam 108 rotates under the action of friction, the protrusions on the clamping cam 108 are more closely attached to the surface of the cable, firm clamping of the cable is achieved, and the cable is effectively prevented from loosening or falling off during threading; when the cable passes through the bridge, the push rod 115 is pushed to move, thereby driving the connecting plate 114 and the rack 113 to move, the rack 113 drives the gear 112 to rotate, thereby driving the rotating shaft 106 and the clamping cam 108 to rotate, the protrusions on the clamping cam 108 are away from the cable, at this time the cable can be taken out of the shell 105, thereby achieving the purpose of conveniently connecting the cable with the threading rope 103 and preventing the cable from falling off.

[0030] The above only discloses one or more preferred embodiments of the present application, and cannot limit the scope of the rights of the present application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A wiring harness for building electrical construction, comprising a bracket, a winding reel, and a wiring rope, wherein the winding reel is rotatably mounted on the bracket, one end of the wiring rope is connected to the winding reel, and the wiring rope is wound around the winding reel, characterized in that, It also includes connection components; The connecting assembly includes a housing, a rotating shaft, a torsion spring, a clamping cam, and a driving component. The housing is connected to the threaded rope and is located at one end of the threaded rope. The rotating shaft is rotatably connected to the housing and is located inside the housing. The two ends of the torsion spring are respectively connected to the rotating shaft and the housing, and the torsion spring is sleeved on the housing. The clamping cam is fixedly connected to the rotating shaft and is sleeved on the rotating shaft. The driving component is used to drive the rotating shaft to rotate.

2. The wiring harness for building electrical construction as described in claim 1, characterized in that, The clamping cam has a groove, which is arc-shaped and located in the middle of the clamping cam.

3. The wiring harness for building electrical construction as described in claim 2, characterized in that, The connecting assembly also includes an anti-slip strip, which is fixedly connected to the clamping cam and is disposed within the groove.

4. The wiring harness for building electrical construction as described in claim 1, characterized in that, The driving component includes a gear and a rack. The gear is fixedly connected to the rotating shaft and is located at one end of the rotating shaft. The rack is slidably connected to the housing and meshes with the gear.

5. The wiring harness for building electrical construction as described in claim 4, characterized in that, The driving component further includes a connecting plate and a push rod. The connecting plate is fixedly connected to the rack and is disposed on the rack. The push rod is fixedly connected to the connecting plate, and one end of the push rod away from the connecting plate extends out of the housing.

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