CN118100034A - Building pipeline threading draw gear - Google Patents
Building pipeline threading draw gear Download PDFInfo
- Publication number
- CN118100034A CN118100034A CN202410509018.8A CN202410509018A CN118100034A CN 118100034 A CN118100034 A CN 118100034A CN 202410509018 A CN202410509018 A CN 202410509018A CN 118100034 A CN118100034 A CN 118100034A
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- Prior art keywords
- guide rod
- end guide
- traction
- traction tube
- rotating ring
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- 230000005540 biological transmission Effects 0.000 claims description 29
- 230000000712 assembly Effects 0.000 claims description 21
- 238000000429 assembly Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/083—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using lines, e.g. needles, rods or tapes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/088—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling devices movable inside conduits
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- Transmission Devices (AREA)
Abstract
The invention relates to the field of wire installation, in particular to a threading traction device for a building pipeline. The rotating ring can be rotatably sleeved on one rotating column. One end of the front end spring is connected with the front end guide rod, and the other end is connected with the traction tube. One end of the rear end spring is connected with the rear end guide rod, and the other end is connected with the traction tube. The linkage assembly is used for making the angles of the front end guide rod and the rear end guide rod inclined on the traction tube be in negative correlation. The rotation stopping assembly is also used for unlocking the rotating ring when the included angle between the front end guide rod or the rear end guide rod and the traction pipe is zero, and locking the rotating ring again when the rotating ring rotates 180 degrees. The rotating ring rotates 180 degrees to enable the front end guide rod and the rear end guide rod to be in position-changing, and the front end guide rod and the rear end guide rod are in position-changing in-process to cross the protruding blocks on the inner wall of the building pipeline to be threaded, so that the traction pipe can be prevented from being blocked in the threading process, and the threading efficiency can be improved.
Description
Technical Field
The invention relates to the field of wire installation, in particular to a threading traction device for a building pipeline.
Background
With the development of society, the urban process in China is faster and faster, part of overhead lines commonly seen in rural areas and suburbs are converted into buried cables, so that the space is saved, the urban overhead line system is beneficial to the attractiveness of the city and the like, however, when the cable is laid underground, the cable cannot be buried directly, and the cable must be laid by using a cable well, a cable duct, or the like, and when the cable duct is laid, because the pipeline is long, some of the pipelines can reach hundreds of meters, the texture of the cable is soft, and the cable is difficult to pass through the cable pipeline with hundreds of meters, therefore, a threading traction device is required to pass through the pipeline and draw a tension rope or a steel wire rope, the steel wire rope is used as a drawing wire to pass through the pipeline, and finally, the cable or the electric wire is pulled through the pipeline by the steel wire rope to finish laying.
Because there may be obstructions such as bumps in the cable duct, the obstructions in the duct may affect the speed of movement of the existing threading draft gear within the cable duct. When the obstruction in the pipeline is great, can hinder the removal of threading draw gear even, and then make current threading draw gear to the wire leading efficiency reduction of cable conduit.
Disclosure of Invention
The invention provides a threading traction device for a building pipeline, which aims to solve the problem that the existing device has low efficiency of threading the pipeline.
The invention relates to a threading traction device for a building pipeline, which adopts the following technical scheme:
A threading traction device for a building pipeline comprises a traction pipe, a plurality of rotating assemblies, a plurality of guiding assemblies, a plurality of linkage assemblies and a plurality of rotation stopping assemblies; the traction tube is horizontally arranged, a clamping assembly is arranged in the traction tube, one end of the traction tube is a front end, and the other end of the traction tube is a rear end; the clamping component is used for clamping the traction wire; the rotating assembly comprises a rotating column and a rotating ring; the rotating column is fixedly arranged on the traction tube; a plurality of rotating columns are uniformly distributed along the circumference of the traction pipe; the rotating ring can be rotatably sleeved on a rotating column; the guide assembly comprises a front end guide rod, a rear end guide rod, a front end spring and a rear end spring; the front end guide rod and the rear end guide rod are elastic telescopic rods, and one end of each guide rod is provided with a guide wheel; the front end guide rod is obliquely arranged towards the front end of the traction tube, and one end of the front end guide rod is positioned at the front side of the front end of the traction tube; the rear end guide rod is obliquely arranged towards the rear end of the traction tube; the other end of each front end guide rod and the other end of each rear end guide rod are hinged with a rotating ring; the projections of the front end guide rod and the rear end guide rod along the radial direction of the traction tube are parallel to the axis of the traction tube; the projection of the connecting line of the hinging point of the front end guide rod and the rear end guide rod on the rotating ring along the radial direction of the traction tube is intersected with the axis of the traction tube; one end of the front end spring is connected with the front end guide rod, and the other end of the front end spring is connected with the traction pipe; one end of the rear end spring is connected with the rear end guide rod, and the other end of the rear end spring is connected with the traction pipe; each linkage assembly is arranged on one guide assembly; the linkage assembly is used for making the inclined angles of the front end guide rod and the rear end guide rod on the traction tube be in negative correlation; each rotation stopping assembly is arranged on one rotation assembly; the rotation stopping assembly is used for locking the rotating ring; the rotation stopping assembly is also used for unlocking the rotating ring when the included angle between the front end guide rod or the rear end guide rod and the traction pipe is zero, and locking the rotating ring again when the rotating ring rotates 180 degrees.
Further, the linkage assembly comprises a linkage rack, a front gear and a rear gear; the linkage rack is arranged along the axis direction of the traction tube and passes through the axis of the rotating ring, and the linkage rack is arranged on the rotating ring in a sliding manner along the axis direction of the traction tube; the front gear is fixedly arranged at the other end of the front guide rod, and is driven to rotate when the inclination angle of the front guide rod changes; the front gear is meshed with the linkage rack; the rear gear is fixedly arranged at the other end of the rear end guide rod, and drives the front gear to rotate when the inclination angle of the rear end guide rod changes; the rear gear is meshed with the linkage rack.
Further, the rotation stopping assembly comprises a front brake pin, a rear brake pin, a front rotation stopping spring, a rear rotation stopping spring and a transmission piece; the rotating column is provided with two first sliding grooves; the first sliding groove is parallel to the linkage rack; the two first sliding grooves are symmetrically arranged about the axis center of the rotating column; the rotating ring is provided with two second sliding grooves; in an initial state, each second chute is collinear and communicated with one first chute; the hinge positions of the front end guide rod and the rear end guide rod and the rotating ring are positioned in the second chute; the front brake pin can be slidably arranged in the first chute and the corresponding second chute, and the front brake pin can lock the rotating ring; the front end guide rod is abutted with the front brake pin and used for enabling the front brake pin to completely slide into the first chute when the included angle between the front end guide rod and the traction pipe is zero; one end of the front rotation stopping spring is fixedly connected with the front braking pin, and the other end of the front rotation stopping spring is fixedly connected with the rotating column; the rear brake pin can be slidably arranged in the other first chute and the corresponding second chute, and the structural functions of the rear brake pin and the front brake pin are the same; one end of the rear rotation stopping spring is fixedly connected with the rear brake pin, and the other end of the rear rotation stopping spring is fixedly connected with the rotating column; the transmission piece is used for enabling the front brake pin and the rear brake pin to always keep a state of being symmetrical about the center of the axle center of the rotating column.
Further, the transmission member includes a transmission plate; the rotating column is provided with a mounting groove; the mounting groove is a circular groove, is coaxial with the rotating column and can be communicated with the two first sliding grooves; the transmission plate is a telescopic plate and is vertically arranged and can be rotatably arranged at the axle center of the mounting groove; one end of the transmission plate is connected with the front brake pin, and the other end is connected with the rear brake pin.
Further, one end of the front end guide rod and one end of the rear end guide rod are both of cam structures.
Further, a front hinge shaft and a rear hinge shaft are respectively arranged in the two second sliding grooves of the rotating ring; the front end guide rod is hinged with the rotating ring through a front hinge shaft, and the front gear is rotatably sleeved on the front hinge shaft; the rear end guide rod is hinged with the rotating ring through a rear hinge shaft, and the rear gear can be rotatably sleeved on the rear hinge shaft.
Further, the front end guide bar comprises a main bar and a sub bar; one end of the main rod is hinged with the rotating ring; the auxiliary rod can be slidably inserted into the main rod; a telescopic spring is connected between the main rod and the auxiliary rod; the guide wheel is arranged at one end of the auxiliary rod far away from the main rod; the front end guide rod and the rear end guide rod have the same structure.
Further, the clamping assembly comprises a movable clamping plate, a clamping spring and an operating rod; the movable clamping plate is provided with a clamping groove; the clamping groove is an arc-shaped groove; the movable clamping plate is arranged in the traction tube and can be arranged in a radial sliding manner along the traction tube; the opening of the clamping groove is positioned at one side facing the axis of the traction tube; one end of the clamping spring is fixedly connected with the inner wall of the traction tube, and the other end of the clamping spring is fixedly connected with the movable clamping plate; the traction tube is provided with a movable groove; the movable groove extends along the circumferential direction of the traction tube; one end of the operating rod is fixedly connected with the movable clamping plate, and the other end of the operating rod extends outwards from the movable groove.
Further, the clamping assembly further comprises a fixed clamping plate; the fixed splint is fixedly arranged in the traction tube and is positioned at one side far away from the movable splint.
Further, the fixed clamping plate and the movable clamping plate are sequentially arranged along the axial direction of the traction tube.
The beneficial effects of the invention are as follows: the invention relates to a threading traction device for a building pipeline, which is provided with a traction pipe, a plurality of rotating assemblies, a plurality of guiding assemblies, a plurality of linkage assemblies and a plurality of rotation stopping assemblies, wherein the traction pipe slides forwards in the building pipeline to be threaded through guiding wheels on a front guiding rod and a rear guiding rod. When the guide wheel of the front guide rod is blocked to stop moving forwards and the traction pipe is still in a state of moving forwards, the traction pipe is made to move forwards, so that the front guide rod is contracted and shortened under pressure, and meanwhile, the included angle between the front guide rod and the traction pipe is increased. The linkage assembly is used for driving the included angle between the rear end guide rod and the traction pipe to be smaller when the included angle between the front end guide rod and the traction pipe is increased. When the included angle between the rear end guide rod and the traction tube is zero, the locking state of the rotating ring is released by the rotation stopping assembly. Because the guide wheel of the front guide rod is blocked from moving forwards, the traction pipe continues to move forwards, the front guide rod receives the reaction force of the lug on the inner wall of the building pipeline to be threaded, the front guide rod receives the backward thrust to enable the rotating ring to rotate until the rotating ring rotates 180 degrees relative to the rotating column, and the rotating ring is locked again by the rotation stopping assembly. The rotating ring rotates 180 degrees to enable the front end guide rod and the rear end guide rod to be in position change, and then the rotating ring passes through the protruding blocks on the inner wall of the building pipeline to be threaded, so that the traction pipe can be prevented from being blocked in the process of threading, and the threading efficiency can be improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a building pipe threading draft gear of the present invention;
FIG. 2 is a side view of an embodiment of a building conduit threading draft gear of the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;
FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 2;
FIG. 5 is an enlarged view of a portion of X in FIG. 3;
FIG. 6 is a front view of an embodiment of a building conduit threading draft gear of the present invention;
FIG. 7 is a schematic view of the structure of the front end guide bar of an embodiment of the present invention for threading a pull device in a building pipe;
FIG. 8 is a schematic view showing the structural relationship between a rotating assembly and a guiding assembly of an embodiment of a threading and pulling device for a building pipeline according to the present invention;
FIG. 9 is a cross-sectional view of a swivel assembly of an embodiment of a construction conduit threading draft gear of the present invention;
In the figure: 100. a traction tube; 111. a movable clamping plate; 112. a clamping spring; 113. an operation lever; 114. a fixed clamping plate; 115. a mounting frame; 200. a rotating assembly; 210. rotating the column; 220. a rotating ring; 222. a front hinge shaft; 223. a rear hinge shaft; 310. a front end guide bar; 311. a main rod; 312. an auxiliary rod; 320. a rear end guide bar; 330. a front end spring; 340. a rear end spring; 350. a guide wheel; 400. a linkage assembly; 410. a linkage rack; 411. a rack; 420. a front gear; 430. a rear gear; 510. a front brake pin; 520. a rear brake pin; 530. a front detent spring; 540. a rear detent spring; 550. and a transmission plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of a construction pipe threading traction device of the present invention, as shown in fig. 1 to 9, comprises a traction pipe 100, a plurality of rotating assemblies 200, a plurality of guiding assemblies, a plurality of linkage assemblies 400, and a plurality of rotation stopping assemblies. The traction tube 100 is horizontally arranged, and a clamping assembly is arranged inside the traction tube 100, one end of the traction tube 100 is a front end, the other end of the traction tube is a rear end (as shown in fig. 2, the right side of the traction tube 100 is the front end, and the left side is the rear end). The clamping assembly is used for clamping the traction wire, and the traction wire is manually pushed to slide forward through the traction wire after being clamped by the clamping assembly, and specifically, the traction wire is a steel wire rope. Thereby sliding the pull tube 100 forward within the building pipe to be threaded. The rotating assembly 200 comprises rotating columns 210 and rotating rings 220, the rotating columns 210 are fixedly arranged on the traction tube 100, a plurality of rotating columns 210 are uniformly distributed along the circumferential direction of the traction tube 100, and the rotating columns 210 are arranged along the radial direction of the traction tube 100; each rotating ring 220 is rotatably sleeved on only one rotating post 210.
The guide assembly includes a front guide bar 310, a rear guide bar 320, a front spring 330, and a rear spring 340. The front end guide rod 310 and the rear end guide rod 320 are elastic telescopic rods, one ends of the guide rods are provided with guide wheels 350, the guide wheels 350 can be rotatably arranged, and the guide wheels 350 are used for being in contact with the inner wall of a building pipeline to be threaded. The front guide rod 310 is inclined toward the front end of the traction tube 100, and one end is located at the front side of the front end of the traction tube 100, so as to ensure that the guide wheel 350 of the front guide rod 310 contacts with the bump in the pipeline to be threaded when the traction tube 100 slides forward. The rear end guide bar 320 is inclined toward the rear end of the traction tube 100, and one end is located at the rear side of the rear end of the traction tube 100. The other end of each front guide bar 310 and each rear guide bar 320 is hinged to one of the rotating rings 220 so that each of the front guide bars 310 and the rear guide bars 320 can change an angle of an included angle with the traction tube 100. The projections of the front end guide bar 310 and the rear end guide bar 320 in the radial direction of the traction tube 100 are parallel to the axis of the traction tube 100. The projection of the line of the hinge point of the front end guide bar 310 and the rear end guide bar 320 on the rotating ring 220 in the radial direction of the traction tube 100 intersects with the axis of the traction tube 100, and thus the rotating ring 220 rotates relative to the rotating post 210 when the front end guide bar 310 or the rear end guide bar 320 receives a thrust force in the axial direction of the traction tube 100. One end of the front end spring 330 is connected to the front end guide rod 310, and the other end is connected to the traction tube 100, and when the angle between the front end guide rod 310 and the traction tube 100 becomes smaller, the front end spring 330 is compressed to store a force. One end of the rear end spring 340 is connected to the rear end guide bar 320, and the other end is connected to the traction tube 100, and when an angle between the rear end guide bar 320 and the traction tube 100 becomes smaller, the rear end spring 340 is compressed to store a force.
Each linkage assembly 400 is disposed on one of the guide assemblies. The linkage assembly 400 is used to negatively correlate the angles at which the front end guide bar 310 and the rear end guide bar 320 tilt on the traction tube 100. When the included angle between the front end guide rod 310 and the traction tube 100 is increased, the included angle between the rear end guide rod 320 and the traction tube 100 is driven to be reduced; or, when the included angle between the rear end guide rod 320 and the traction tube 100 increases, the included angle between the front end guide rod 310 and the traction tube 100 is driven to decrease. Specifically, when the traction tube 100 slides forward in the building pipe to be threaded, the guide wheel 350 of the front guide rod 310 is in contact with the bump on the inner wall of the building pipe to be threaded, the guide wheel 350 of the front guide rod 310 is blocked from stopping moving forward, but the traction tube 100 is still in a state of moving forward, so that the traction tube 100 moves forward to shorten the front guide rod 310 due to pressure shrinkage, and at the same time, the included angle between the front guide rod 310 and the traction tube 100 is enlarged. When the angle between the front end guide bar 310 and the traction tube 100 becomes large, the angle between the rear end guide bar 320 and the traction tube 100 becomes small by the linkage assembly 400.
Each of the anti-rotation assemblies is disposed on one of the rotation assemblies 200. The rotation stopping assembly is used to lock the rotation ring 220 such that the rotation ring 220 cannot rotate on the rotation post 210. The rotation stopping assembly is also used for unlocking the rotating ring 220 when the angle between the front end guide rod 310 or the rear end guide rod 320 and the traction tube 100 is zero, and locking the rotating ring 220 again when the rotating ring 220 rotates 180 °. When the rotating ring 220 rotates 180 °, the front end guide bar 310 and the rear end guide bar 320 are exchanged in position. Specifically, when the angle between the front end guide bar 310 and the traction tube 100 is 90 °, the linkage assembly 400 makes the angle between the corresponding rear end guide bar 320 and the traction tube 100 zero degrees. When the angle between the rear guide rod 320 and the traction tube 100 is zero, the rotation stopping assembly releases the locked state of the rotation ring 220. At this time, since the forward movement of the guide wheel 350 of the front guide bar 310 is blocked, the pulling pipe 100 continues to move forward, the reaction force of the front guide bar 310 to the protrusion on the inner wall of the building pipe to be threaded, the reaction force of the front guide bar 310 rotates the rotating ring 220 until the rotating ring 220 rotates 180 ° with respect to the rotating post 210, the rotation stopping assembly re-locks the rotating ring 220, the rotating ring 220 causes the front guide bar 310 and the rear guide bar 320 to change positions, and the front spring 330 and the rear spring 340 are simultaneously stretched. In the process of changing the positions of the front end guide rod 310 and the rear end guide rod 320, the rear end guide rod 320 can pass through the convex blocks on the inner wall of the building pipeline to be threaded, so that the traction tube 100 can be prevented from being blocked in the process of threading, and the threading efficiency can be improved.
In this embodiment, as shown in fig. 1 to 6, the linkage assembly 400 includes a linkage rack 410, a front gear 420, and a rear gear 430. The linked rack 410 is disposed along the axial direction of the traction tube 100, and passes through the axis of the rotating ring 220, and the linked rack 410 is slidably disposed on the rotating ring 220 along the axial direction of the traction tube 100. Specifically, the rotating ring 220 is fixedly provided with a rack 411, and the linked rack 410 is slidably arranged on the rack 411 and synchronously rotates along with the rotating ring 220; the projection of the linked rack 410 in the radial direction of the draft tube 100 coincides with the axis of the draft tube 100. The front gear 420 is fixedly disposed at the other end of the front guide rod 310 and is coaxial with the hinge point of the front guide rod 310 at the rotating ring 220, and when the inclination angle of the front guide rod 310 is changed, the front guide rod 310 drives the front gear 420 to rotate. The front gear 420 is engaged with the linked rack 410, and thus, when the front gear 420 rotates, the linked rack 410 is driven to slide on the rack 411. The rear gear 430 is fixedly disposed at the other end of the rear guide bar 320 and is coaxial with the hinge point of the rear guide bar 320 at the rotation ring 220, and when the inclination angle of the rear guide bar 320 is changed, the rear guide bar 320 drives the rear gear 430 to rotate. The rear gear 430 is engaged with the linked rack 410, and thus, when the rear gear 430 rotates, the linked rack 410 is driven to slide on the rack 411. Specifically, when the front gear 420 rotates to drive the linked rack 410 to slide, the linked rack 410 drives the rear gear 430 to rotate; conversely, the rotation of the rear gear 430 drives the rotation of the front gear 420 through the linked rack 410. When the included angle between the front end guide rod 310 and the traction tube 100 is increased, the included angle between the rear end guide rod 320 and the traction tube 100 is driven to be reduced by the transmission of the front gear 420, the linkage rack 410 and the rear gear 430 in sequence; when the included angle between the rear end guide rod 320 and the traction tube 100 becomes larger, the transmission of the rear gear 430, the linkage rack 410 and the front gear 420 sequentially drives the included angle between the front end guide rod 310 and the traction tube 100 to become smaller.
In this embodiment, as shown in fig. 2 to 9, the rotation stopping assembly includes a front brake pin 510, a rear brake pin 520, a front rotation stopping spring 530, a rear rotation stopping spring 540, and a transmission member; the rotating column 210 is provided with two first sliding grooves, the first sliding grooves are parallel to the linkage rack 410, and the two first sliding grooves are arranged symmetrically about the center of the axis of the rotating column 210, specifically, the two first sliding grooves are located on different sides of the linkage rack 410. The rotating ring 220 is provided with two second sliding grooves, and in an initial state, each second sliding groove is collinear with and communicated with one first sliding groove. The hinge points of the front end guide bar 310 and the rear end guide bar 320 and the rotating ring 220 are located in the second sliding groove. The front brake pin 510 is slidably disposed in the first sliding groove and the corresponding second sliding groove, and when the front brake pin 510 is in the initial position, the front brake pin 510 is partially located in the first sliding groove and partially located in the second sliding groove, so that the rotating ring 220 is locked relative to the rotating post 210. When the front brake pins 510 are simultaneously located in the first sliding groove and the corresponding second sliding groove, the front brake pins 510 can lock the rotating ring 220, and the rotating ring 220 cannot rotate on the rotating post 210. The end of the front guide rod 310 far away from the guide wheel 350 abuts against the front brake pin 510, so that the front brake pin 510 can be driven to move into the first sliding groove when the front guide rod 310 rotates, and the front brake pin 510 can be completely slid into the first sliding groove when the included angle between the front brake pin and the traction tube 100 is zero. One end of the front rotation stopping spring 530 is fixedly connected with the front brake pin 510, the other end is fixedly connected with the rotating column 210, when the front brake pin 510 slides into the first sliding groove where the front brake pin 510 is positioned, the front rotation stopping spring 530 contracts to store force, and when the front rotation stopping spring 530 releases the elastic force, the front brake pin 510 is restored to the initial position. The rear brake pin 520 is slidably disposed in the other first runner and its corresponding second runner, and the structural functions of the rear brake pin 520 and the front brake pin 510 are the same. When the rear brake pin 520 is at the initial position, the rear brake pin 520 is partially located in the first sliding groove, and partially located in the second sliding groove, so that the rotating ring 220 is locked relative to the rotating post 210. Specifically, when both the front and rear detents 510, 520 are fully slid into the respective first slide slots, the rotating ring 220 is unlocked. One end of the rear rotation stopping spring 540 is fixedly connected with the rear brake pin 520, the other end of the rear rotation stopping spring 540 is fixedly connected with the rotating column 210, when the rear brake pin 520 slides into the first sliding groove where the rear brake pin 520 is positioned, the rear rotation stopping spring 540 contracts to store force, and when the rear rotation stopping spring 540 releases the elastic force, the rear brake pin 520 is restored to the initial position. The transmission member is used for enabling the front brake pin 510 and the rear brake pin 520 to always maintain a state of being symmetrical about the center of the axle center of the rotating column 210, and when the front brake pin 510 slides into the first chute where the front brake pin 510 is located, the front brake pin 510 drives the rear brake pin 520 to synchronously slide into the first chute where the rear brake pin 520 is located through the transmission member; when the rear brake pin 520 slides into the first chute where the rear brake pin 520 is located, the rear brake pin 520 drives the front brake pin 510 to synchronously slide into the first chute where the rear brake pin is located through the transmission piece.
Specifically, the transmission member includes a transmission plate 550. The rotary column 210 is provided with a mounting groove; the mounting groove is a circular groove, is coaxial with the rotating column 210, and can be communicated with two first sliding grooves; the transmission plate 550 is a telescopic plate, and the transmission plate 550 is vertically arranged and can be rotatably arranged at the axle center of the mounting groove; one end of the driving plate 550 is connected to the front brake pin 510 and the other end is connected to the rear brake pin 520.
In this embodiment, as shown in fig. 3 to 9, the ends of the front end guide rod 310 and the rear end guide rod 320, which are far away from the guide wheel 350, are both in cam structures, so that the front end guide rod 310 and the rear end guide rod 320 respectively form cam mechanisms with the corresponding front brake pin 510 and rear brake pin 520; when the included angle between the front end guide rod 310 and the traction tube 100 is zero, the front brake pin 510 is driven to completely slide into the first chute where the front brake pin is positioned through cam transmission; when the included angle between the rear end guide rod 320 and the traction tube 100 is zero, the rear brake pin 520 is driven to completely slide into the first sliding groove where the rear brake pin is located through cam transmission.
In the present embodiment, as shown in fig. 8 to 9, a front hinge shaft 222 and a rear hinge shaft 223 are respectively disposed in two second sliding grooves of the rotating ring 220. The front guide rod 310 is hinged to the rotating ring 220 through a front hinge shaft 222, and a front gear 420 is rotatably sleeved on the front hinge shaft 222, and the front gear 420 is fixedly connected with the front guide rod 310. The rear end guide bar 320 is hinged with the rotating ring 220 through the rear hinge shaft 223, and the rear gear 430 is rotatably sleeved on the rear hinge shaft 223, and the rear gear 430 is fixedly connected with the rear end guide bar 320.
In the present embodiment, as shown in fig. 7 to 9, the front end guide lever 310 includes a main lever 311 and a sub lever 312; one end of the main rod 311 is hinged with the rotating ring 220, and the main rod 311 is hinged with the rotating ring 220 through the front hinge shaft 222; the sub lever 312 is slidably inserted into the main lever 311; a telescopic spring is connected between the main rod 311 and the auxiliary rod 312; the guide wheel 350 is arranged at one end of the auxiliary rod 312 away from the main rod 311; the front guide bar 310 and the rear guide bar 320 have the same structure.
In this embodiment, as shown in fig. 4 to 6, the clamp assembly includes a movable clamp plate 111, a clamp spring 112, and an operation lever 113. The movable clamping plate 111 is provided with a clamping groove; the clamping groove is arc-shaped so as to facilitate clamping the traction wire. The movable clamp plate 111 is provided in the traction tube 100 and is slidably provided in the radial direction of the traction tube 100; the opening of the clamping groove is located on the side facing the axial center of the traction tube 100. One end of the clamping spring 112 is fixedly connected with the inner wall of the traction tube 100, and the other end is fixedly connected with the movable clamping plate 111; the traction tube 100 is provided with a movable groove; in particular, the inner wall of the traction tube 100 is provided with a mounting frame 115, the movable clamp plate 111 is mounted in the mounting frame 115 and can slide in the radial direction of the traction tube 100, and the clamp spring 112 is disposed in the mounting frame 115. The movable groove extends in the circumferential direction of the traction tube 100; one end of the operation rod 113 is fixedly connected with the movable clamping plate 111, the other end of the operation rod 113 extends outwards from the movable groove, and the operation rod 113 upwards slides along the movable groove through manual operation, so that the movable clamping plate 111 is driven to upwards move. The clamping assembly also includes a stationary clamping plate 114; the fixed clamping plate 114 is fixedly disposed in the traction tube 100 and is located at a side remote from the movable clamping plate 111. The fixed clamp plate 114 and the movable clamp plate 111 are arranged at intervals along the axial direction of the traction tube 100 in sequence, the width of the intervals is not larger than the diameter of the traction wire, and then when the fixed clamp plate 114 and the movable clamp plate 111 clamp the traction wire, the traction wire is bent, and at the moment, the fixed clamp plate 114 and the movable clamp plate 111 clamp the traction wire through the side walls, so that the clamped stability of the traction wire is improved.
In operation, as shown in fig. 1 to 9, the operation lever 113 is lifted up along the movable groove by manual operation, and the operation lever 113 drives the movable clamp plate 111 to move up. The movable clamp plate 111 moves upward to compress the holding spring 112 to store the force, and thus the traction wire is inserted into the traction tube 100, and is placed between the fixed clamp plate 114 and the movable clamp plate 111. The operating lever 113 is released to release the elastic force of the clamping spring 112, so that the fixed clamping plate 114 and the movable clamping plate 111 clamp the traction wire. The lengths of the front end guide bar 310 and the rear end guide bar 320 are compressed by a manual operation, so that the pulling tube 100 is installed in the construction pipe to be threaded. The front end guide bar 310 and the rear end guide bar 320 are released and elastically extended in the building pipe to be threaded, so that the front end guide bar 310 and the upper end guide wheel 350 of the rear end guide bar 320 are sequentially contacted with the inner wall of the building pipe to be threaded.
The pulling tube 100 is manually pushed forward along the building pipe to be threaded by the pulling wire. In the initial state, the front and rear stopper pins 510 and 520 are simultaneously located in the respective first and second sliding grooves, thereby locking the rotating ring 220 with respect to the rotating post 210.
When the guide wheel 350 of the front guide bar 310 contacts with the protrusion on the inner wall of the construction pipe to be threaded during the forward sliding of the construction pipe to be threaded of the traction pipe 100, the guide wheel 350 of the front guide bar 310 is blocked from stopping the forward movement, but the traction pipe 100 is still in the forward moving state. The forward movement of the traction tube 100 thus shortens the front guide rod 310 by pressure contraction, and the angle between the front guide rod 310 and the traction tube 100 becomes large. The front guide bar 310 rotates about the front hinge shaft 222, thereby driving the front gear 420 to rotate. The front gear 420 drives the rear gear 430 to rotate through the linkage rack 410, and the rear gear 430 rotates to drive the rear guide rod 320 to synchronously rotate, so that the included angle between the rear guide rod 320 and the traction tube 100 is reduced.
In the process of reducing the included angle between the rear end guide rod 320 and the traction tube 100, the rear end guide rod 320 drives the rear brake pin 520 to slide into the first sliding groove where the rear brake pin is located through cam transmission. When the rear brake pin 520 slides into the first chute where the rear brake pin is located, the front brake pin 510 is driven by the transmission plate 550 to slide into the first chute where the rear brake pin is located. When the angle between the front guide rod 310 and the traction tube 100 is 90 °, the linkage rack 410 makes the angle between the rear guide rod 320 and the traction tube 100 zero. When the included angle between the rear end guide rod 320 and the traction tube 100 is zero, the rear brake pin 520 is driven to slide completely into the first sliding groove where the rear brake pin is located by cam transmission, and the transmission plate 550 simultaneously enables the front brake pin 510 to slide completely into the first sliding groove where the front brake pin is located. When the front and rear stoppers 510 and 520 are completely slid into the corresponding first sliding grooves, the locking of the rotating ring 220 is released. Meanwhile, when the included angle between the rear end guide bar 320 and the pulling pipe 100 becomes smaller, the guide wheel 350 of the rear end guide bar 320 is not in contact with the inner wall of the building pipe to be threaded any more, the supporting force is lost at the position corresponding to the rear end guide bar 320, and the rear end guide bar 320 is stretched by releasing the elastic force at the rear end guide bar 320 at other positions of the pulling pipe 100, so that the rear end of the pulling pipe 100 approaches to one side of the protruding block on the inner wall of the building pipe to be threaded, and the front end of the pulling pipe 100 approaches to one side of the protruding block on the inner wall of the building pipe to be threaded, so that the front end of the pulling pipe 100 can go forward beyond the protruding block on the inner wall of the building pipe to be threaded.
After the rotation ring 220 is unlocked, the traction tube 100 continues to slide forward. The front guide bar 310 receives a reaction force of the protrusion on the inner wall of the construction pipe to be threaded, and the reaction force has a backward pushing force on the front guide bar 310, thereby rotating the rotating ring 220 in the first direction. When the rotating ring 220 rotates 180 ° with respect to the rotating post 210, a first sliding groove and a second sliding groove are again communicated, and the front and rear detent springs 530 and 540 release the elastic force, so that the corresponding front and rear detent pins 510 and 520 are re-extended from the first sliding groove. The front and rear detents 510, 520 re-lock the rotating ring 220. The rotating ring 220 rotates 180 ° with respect to the rotating post 210, and the front end guide bar 310 and the rear end guide bar 320 are reversed in position while the front end spring 330 and the rear end spring 340 are stretched. During the position change of the front end guide bar 310 and the rear end guide bar 320, the rear end guide bar 320 passes over the bump on the inner wall of the building pipe to be threaded, so that the traction tube 100 continues to move forward.
At this time, the guide wheel 350 of the rear guide bar 320 is positioned at the front end of the pulling tube 100, and when the guide wheel 350 of the rear guide bar 320 contacts with the protrusion of the inner wall of the building pipe to be threaded, the above-mentioned operations are repeated, and when the rotating ring 220 is unlocked again, the rotating ring 220 is rotated in a second direction opposite to the first direction under the combined action of the tensile force of the rear rotation stop spring 540 and the front rotation stop spring 530, so that the front guide bar 310 and the rear guide bar 320 are again reversed.
The threading operation is completed according to the above-described operation until the pulling tube 100 is passed out of the construction pipe to be threaded.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a building pipeline threading draw gear which characterized in that: comprising the following steps:
The traction tube is horizontally arranged, a clamping assembly is arranged in the traction tube, one end of the traction tube is the front end, and the other end of the traction tube is the rear end; the clamping component is used for clamping the traction wire;
a plurality of rotating assemblies including a rotating column and a rotating ring; the rotating column is fixedly arranged on the traction tube; a plurality of rotating columns are uniformly distributed along the circumference of the traction pipe; the rotating ring can be rotatably sleeved on a rotating column;
The guide assemblies comprise front-end guide rods, rear-end guide rods, front-end springs and rear-end springs; the front end guide rod and the rear end guide rod are elastic telescopic rods, and one end of each guide rod is provided with a guide wheel; the front end guide rod is obliquely arranged towards the front end of the traction tube, and one end of the front end guide rod is positioned at the front side of the front end of the traction tube; the rear end guide rod is obliquely arranged towards the rear end of the traction tube; the other end of each front end guide rod and the other end of each rear end guide rod are hinged with a rotating ring; the projections of the front end guide rod and the rear end guide rod along the radial direction of the traction tube are parallel to the axis of the traction tube; the projection of the connecting line of the hinging point of the front end guide rod and the rear end guide rod on the rotating ring along the radial direction of the traction tube is intersected with the axis of the traction tube; one end of the front end spring is connected with the front end guide rod, and the other end of the front end spring is connected with the traction pipe; one end of the rear end spring is connected with the rear end guide rod, and the other end of the rear end spring is connected with the traction pipe;
A plurality of linkage assemblies, each linkage assembly disposed on one of the guide assemblies; the linkage assembly is used for making the inclined angles of the front end guide rod and the rear end guide rod on the traction tube be in negative correlation;
A plurality of rotation stopping assemblies, each rotation stopping assembly being disposed on one of the rotating assemblies; the rotation stopping assembly is used for locking the rotating ring; the rotation stopping assembly is also used for unlocking the rotating ring when the included angle between the front end guide rod or the rear end guide rod and the traction pipe is zero, and locking the rotating ring again when the rotating ring rotates 180 degrees.
2. A building pipe threading draft gear according to claim 1 wherein:
the linkage assembly comprises a linkage rack, a front gear and a rear gear; the linkage rack is arranged along the axis direction of the traction tube and passes through the axis of the rotating ring, and the linkage rack is arranged on the rotating ring in a sliding manner along the axis direction of the traction tube; the front gear is fixedly arranged at the other end of the front guide rod, and is driven to rotate when the inclination angle of the front guide rod changes; the front gear is meshed with the linkage rack; the rear gear is fixedly arranged at the other end of the rear end guide rod, and drives the front gear to rotate when the inclination angle of the rear end guide rod changes; the rear gear is meshed with the linkage rack.
3. A building pipe threading draft gear according to claim 2 wherein:
The rotation stopping assembly comprises a front brake pin, a rear brake pin, a front rotation stopping spring, a rear rotation stopping spring and a transmission piece; the rotating column is provided with two first sliding grooves; the first sliding groove is parallel to the linkage rack; the two first sliding grooves are symmetrically arranged about the axis center of the rotating column; the rotating ring is provided with two second sliding grooves; in an initial state, each second chute is collinear and communicated with one first chute; the hinge positions of the front end guide rod and the rear end guide rod and the rotating ring are positioned in the second chute; the front brake pin can be slidably arranged in the first chute and the corresponding second chute, and the front brake pin can lock the rotating ring; the front end guide rod is abutted with the front brake pin and used for enabling the front brake pin to completely slide into the first chute when the included angle between the front end guide rod and the traction pipe is zero; one end of the front rotation stopping spring is fixedly connected with the front braking pin, and the other end of the front rotation stopping spring is fixedly connected with the rotating column; the rear brake pin can be slidably arranged in the other first chute and the corresponding second chute, and the structural functions of the rear brake pin and the front brake pin are the same; one end of the rear rotation stopping spring is fixedly connected with the rear brake pin, and the other end of the rear rotation stopping spring is fixedly connected with the rotating column; the transmission piece is used for enabling the front brake pin and the rear brake pin to always keep a state of being symmetrical about the center of the axle center of the rotating column.
4. A building pipe threading draft gear according to claim 3 wherein:
the transmission piece comprises a transmission plate; the rotating column is provided with a mounting groove;
The mounting groove is a circular groove, is coaxial with the rotating column and can be communicated with the two first sliding grooves; the transmission plate is a telescopic plate and is vertically arranged and can be rotatably arranged at the axle center of the mounting groove; one end of the transmission plate is connected with the front brake pin, and the other end is connected with the rear brake pin.
5. A building pipe threading draft gear according to claim 3 wherein:
One end of the front end guide rod and one end of the rear end guide rod are both of cam structures.
6. A building pipe threading draft gear according to claim 3 wherein:
a front hinge shaft and a rear hinge shaft are respectively arranged in the two second sliding grooves of the rotating ring; the front end guide rod is hinged with the rotating ring through a front hinge shaft, and the front gear is rotatably sleeved on the front hinge shaft; the rear end guide rod is hinged with the rotating ring through a rear hinge shaft, and the rear gear can be rotatably sleeved on the rear hinge shaft.
7. A building pipe threading draft gear according to claim 1 wherein:
the front end guide rod comprises a main rod and an auxiliary rod; one end of the main rod is hinged with the rotating ring; the auxiliary rod can be slidably inserted into the main rod; a telescopic spring is connected between the main rod and the auxiliary rod; the guide wheel is arranged at one end of the auxiliary rod far away from the main rod; the front end guide rod and the rear end guide rod have the same structure.
8. A building pipe threading draft gear according to claim 1 wherein:
The clamping assembly comprises a movable clamping plate, a clamping spring and an operating rod; the movable clamping plate is provided with a clamping groove; the clamping groove is an arc-shaped groove; the movable clamping plate is arranged in the traction tube and can be arranged in a radial sliding manner along the traction tube; the opening of the clamping groove is positioned at one side facing the axis of the traction tube; one end of the clamping spring is fixedly connected with the inner wall of the traction tube, and the other end of the clamping spring is fixedly connected with the movable clamping plate; the traction tube is provided with a movable groove; the movable groove extends along the circumferential direction of the traction tube; one end of the operating rod is fixedly connected with the movable clamping plate, and the other end of the operating rod extends outwards from the movable groove.
9. A building pipe threading draft gear according to claim 8 wherein:
the clamping assembly further comprises a fixed clamping plate; the fixed splint is fixedly arranged in the traction tube and is positioned at one side far away from the movable splint.
10. A building pipe threading draft gear according to claim 9 wherein:
The fixed splint and the movable splint are sequentially arranged along the axial direction of the traction pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410509018.8A CN118100034B (en) | 2024-04-26 | 2024-04-26 | Building pipeline threading draw gear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410509018.8A CN118100034B (en) | 2024-04-26 | 2024-04-26 | Building pipeline threading draw gear |
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| CN118100034A true CN118100034A (en) | 2024-05-28 |
| CN118100034B CN118100034B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410509018.8A Active CN118100034B (en) | 2024-04-26 | 2024-04-26 | Building pipeline threading draw gear |
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| Publication number | Publication date |
|---|---|
| CN118100034B (en) | 2024-08-02 |
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