High efficiency wheeled diverting conveyor

By designing a wheeled steering conveyor driven by a rotating shaft, conveyor belt, and servo motor, the problem of limited steering range in existing technologies has been solved, achieving flexible conveyor belt steering and stable conveying, adapting to changes in factory and equipment location.

CN117022991BActive Publication Date: 2026-02-13JIANGSU YONGLAN GRAIN MASCH CO LTD +1
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Patent Information

Application Number
CN202311023302.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-15
Publication Date
2026-02-13
Estimated Expiration
2043-08-15

AI Technical Summary

Technical Problem

Existing wheeled steering conveyors have a limited steering range and cannot be freely adjusted according to factory space and equipment location, resulting in poor adaptability.

Method used

The design incorporates components such as a rotating shaft, conveyor belt, corrugated connecting pipe, material feeder, and servo motor. Through the coordination of servo motor-driven conveyor belt angle adjustment, corrugated pipe stretching and contraction, and support structure, the flexible steering and stable conveying of the conveyor belt are achieved.

Benefits of technology

It enables the conveyor belt to turn freely and transport materials stably, adapting to changes in factory and equipment locations and ensuring the flexibility and accuracy of material transport.

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Abstract

The application discloses a kind of high-efficiency wheeled steering conveyors, including rotating shaft, the left and right sides of the rotating shaft are symmetrically provided with conveyor belt, the opposite side of two conveyor belts is fixedly connected with corrugated connecting pipe, the top of corrugated connecting pipe is provided with extractor, the top of extractor is fixedly connected with the middle of corrugated pipe, the top of corrugated pipe is fixedly connected with mounting arm, the top and bottom of conveyor belt are symmetrically installed with side plate, the side of side plate is fixedly connected with second servo motor, the inner cavity of side plate is installed with belt, the left and right sides of belt inner cavity are symmetrically installed with pulley, the back of side plate is fixedly connected with support column, the left and right sides of support column outer arm are symmetrically movably connected with support floor, the inner cavity of support column is rotatably connected with handle, the bottom of support column is rotatably connected with moving wheel.The high-efficiency wheeled steering conveyor of the application, the range of this conveyor is more, can satisfy most use demand.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of conveyors, in particular to a high-efficiency wheeled steering conveyor. BACKGROUND

[0002] The existing wheeled steering conveyor has a limited steering range, which cannot be freely adjusted according to the space of the factory building and the position of the processing equipment, resulting in a limited conveying range and poor adaptability.

[0003] Therefore, it is necessary to provide a high-efficiency wheeled steering conveyor to solve the above problems. SUMMARY

[0004] The main purpose of the present application is to provide a high-efficiency wheeled steering conveyor, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is:

[0006] A high-efficiency wheeled steering conveyor, comprising a rotating shaft, the left and right sides of the rotating shaft are symmetrically provided with a conveyor belt, the opposite side of the two conveyor belts is fixedly connected with a corrugated connecting pipe, the top of the corrugated connecting pipe is provided with an extractor, the center of the top of the extractor is fixedly connected with a corrugated pipe, and the top of the corrugated pipe is fixedly connected with a mounting arm.

[0007] The top and bottom of the conveyor belt are symmetrically provided with a side plate, one side of the side plate is fixedly connected with a second servo motor, a belt is installed in the inner cavity of the side plate, and belt pulleys are symmetrically installed on the left and right sides of the inner cavity of the belt.

[0008] The back of the side plate is fixedly connected with a support column, the left and right sides of the outer wall of the support column are movably connected with a ground supporting plate, a handle is rotatably connected in the inner cavity of the support column, and a moving wheel is rotatably connected to the bottom of the support column.

[0009] One side of the side plate is fixedly connected with a fixed pile, the front of the fixed pile is movably connected with a cleaning assembly, the top of the right conveyor belt is fixedly connected with a treatment box, and a filter plate is installed at the bottom of the inner cavity of the treatment box.

[0010] Preferably, the back of the rotating shaft is fixedly connected with a first servo motor through a shaft coupling, there are four side plates, the right side of the top one of the side plates is fixedly connected to the left side of the rotating shaft, the bottom of the top one of the side plates is rotatably connected to the top of the rotating shaft, the two sides of the corrugated connecting pipe are symmetrically fixedly connected to the opposite sides of the two side plates, and the front of the first servo motor is fixedly connected to the back of the left side plate.

[0011] Preferably, the left side of the bottom of the extractor is fixedly connected to the front of the left side plate, the bellows is communicated with the inner cavity of the mounting arm, the mounting arm is a hollow structure with the bottom communicated with the outside, and the mounting arm is threadedly connected to the side away from the right two side plates.

[0012] Preferably, the side plate is a hollow structure with the side close to the conveying belt communicated with the outside, one end of the belt pulley is fixedly connected with a connecting shaft, and one end of the second servo motor is fixedly connected with one of the belt pulleys through a rotating shaft.

[0013] Preferably, the bottom of the support column is rotatably connected with a rotating block, a groove is formed in the middle of the back surface of the rotating block, and the moving wheel is rotatably connected in the inner cavity of the groove.

[0014] Preferably, the back surfaces of the left and right sides of the support column are symmetrically provided with second through grooves, a screw rod is rotatably connected in the middle of the inner cavity of the second through groove, the front surface of the screw rod is fixedly connected to the middle of the back surface of the handle, a first through groove is formed in the outer wall of the support column, and the handle is rotatably connected in the inner cavity of the first through groove.

[0015] Preferably, the front surfaces of the opposite sides of the two ground supporting plates are symmetrically fixedly connected with movable blocks, the movable blocks are movably connected in the inner cavities of the second through grooves, and the movable blocks are threadedly connected to the outer walls of the screw rods.

[0016] Preferably, the front surfaces of the two fixing piles are symmetrically provided with movable grooves, the bottom of the cleaning assembly is fixedly connected with a brush, the back surfaces of the brush and the fixing pile are attached to the front surfaces of the two conveying belts, one end of the back surface of the cleaning assembly is fixedly connected with a third servo motor through a second rotating shaft, the third servo motor is movably connected in the inner cavity of the movable groove, the middle of the back surface of the third servo motor is fixedly connected with a threaded rod, the threaded rod is rotatably connected to the back surface of the inner cavity of the movable groove, a connecting block is movably connected to the back surface of the inner cavity of the movable groove and is threadedly connected to the outer wall of the threaded rod, one end of the threaded rod is fixedly connected with a driving motor through a third rotating shaft, and the driving motor is fixedly connected to the side edge of the fixing pile.

[0017] Preferably, the front surface of the bottom of the treatment box is provided with an inlet, the middle of the top of the treatment box is threadedly connected with a mounting plate, the treatment box is a structure with the top and the back surface communicated with the outside, the middle of the back surface of the filter plate is fixedly connected with a vibrating motor, the periphery of the front surface of the filter plate is symmetrically threadedly connected with mounting columns, the front surface of the mounting column is fixedly connected with a spring, and the front surface of the spring is fixedly connected to the top of the inner cavity of the treatment box.

[0018] Beneficial effects:

[0019] Compared with the prior art, the high-efficiency wheel type steering conveyor has the following beneficial effects:

[0020] 1. The high-efficiency wheeled steering conveyor, by starting the first servo motor set, the rotating shaft can drive one of the conveyor belts to rotate, at this time, the angle of the two conveyor belts can be adjusted according to the requirements of material conveying, when the two conveyor belts are transferred, the conveyor belt will be stretched or shrunk accordingly, which can better support the material extractor, and the structure can meet the needs of random steering during material conveying, and can be steered according to the actual size of the factory building and the placement position of the equipment, so as to better the material conveying work.

[0021] 2. The high-efficiency wheeled steering conveyor, through the material extractor, the material can be input to the mounting arm through the corrugated pipe, and then the material can be conveyed to the other conveyor belt through the mounting arm, after the two conveyor belts are steered, the material extractor can be used for material transmission, so as to not affect the material conveying work due to steering, and the corrugated pipe can not only be used for conveying, but also can be stretched and shrunk according to the position of the conveyor belt, so as to fix the position of the mounting arm with the cooperation of the bolt.

[0022] 3. The high-efficiency wheeled steering conveyor, by starting the second servo motor set, the belt pulley on one side can be driven to rotate, at this time, the belt pulley on one side will drive the belt to rotate, at this time, the two belts can drive the two belt pulleys in the cavity to rotate, so as to rotate through the connecting shaft, at this time, the conveyor belt can be driven to rotate, so as to start the material conveying work.

[0023] 4. The high-efficiency wheeled steering conveyor, the conveyor belt can move freely through the moving wheel, so as to transfer the position, by rotating the first through slot, the screw can be driven to rotate, so that the movable block can be connected with the screw thread, at this time, the movable block can drive the two sides of the supporting floor to move, until the supporting floor is in contact with the ground, at this time, the supporting floor can replace the moving wheel to contact with the ground, so as to have the supporting effect, and can have the stable effect during the material conveying process.

[0024] 5、the efficient wheel type steering conveyor, through starting the third servo motor arranged, can drive the cleaning assembly to rotate, when the conveyor belt works, the cleaning assembly can move to the outside, so as to not affect the normal work of the conveyor belt, through rotating the threaded rod arranged, so that the connecting block can be screwed, at this time, the brush can be driven to move on the front of the conveyor belt, after the material conveying is finished, the cleaning work of the conveyor belt can be carried out, through starting the vibration motor arranged, the filter plate can be driven to vibrate, so that the conveyed material can be filtered, stones and large volume sundries contained therein can be filtered, so that the precision of the material can be guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the structure diagram of the invention;

[0026] Figure 2 is the structure diagram of the invention Figure 1 is the enlarged view of A in the invention;

[0027] Figure 3 is the structure diagram of the floor supporting plate of the invention;

[0028] Figure 4 is the structure diagram of the corrugated connecting pipe of the invention;

[0029] Figure 5 is the structure diagram of the side plate of the invention;

[0030] Figure 6 is the structure diagram of the cleaning assembly of the invention;

[0031] Figure 7 is the bottom view of the processing box of the invention.

[0032] In the figure: 1, rotating shaft; 2, first servo motor; 3, side plate; 4, conveyor belt; 5, second servo motor; 6, belt; 7, pulley; 8, connecting shaft; 9, corrugated connecting pipe; 10, material extractor; 11, corrugated pipe; 12, mounting wall; 13, bolt; 14, support column; 15, first through slot; 16, handle; 17, second through slot; 18, floor supporting plate; 19, movable block; 20, screw rod; 21, rotating block; 22, groove; 23, moving wheel; 24, cleaning assembly; 25, fixed pile; 26, movable slot; 27, brush; 28, third servo motor; 29, connecting block; 30, threaded rod; 31, processing box; 32, feed inlet; 33, mounting plate; 34, filter plate; 35, mounting column; 36, spring; 37, vibration motor. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, purposes and effects of the invention easy to understand, the invention is further described below in combination with specific embodiments.

[0034] As Figure 1 , 2 , 4 shows a high -efficient wheel type steering conveyor, including rotating shaft 1, the left and right sides of rotating shaft 1 symmetrically arranged with conveyor belt 4, the opposite side of the two conveyor belts 4 is fixedly connected with corrugated connecting pipe 9, the top of corrugated connecting pipe 9 is provided with material extractor 10, the top of material extractor 10 is fixedly connected with corrugated pipe 11, the top of corrugated pipe 11 is fixedly connected with mounting arm 12, the back of rotating shaft 1 is fixedly connected with first servo motor 2 through shaft coupling, side plate 3 has four, the right side of the top of one side plate 3 is fixedly connected to the left side of rotating shaft 1, the bottom of the top of one side plate 3 is rotatably connected to the top of rotating shaft 1, the opposite side of the two sides of corrugated connecting pipe 9 is fixedly connected to the opposite side of the two sides of side plate 3, the left side of the front of first servo motor 2 is fixedly connected to the back of left side plate 3, the left side of the bottom of material extractor 10 is fixedly connected to the front of left side plate 3, the inner cavity of corrugated pipe 11 and mounting arm 12 is communicated, mounting arm 12 is a cavity structure with the bottom communicating with the outside, mounting arm 12 is threaded on the side opposite to the right two side plates 3 through bolt 13, by starting the first servo motor 2 arranged, so that rotating shaft 1 can drive one of the conveyor belts 4 to rotate, at this time, the angle of the two conveyor belts 4 can be adjusted according to the requirement of material conveying, when the position of the two conveyor belts 4 is transferred, the conveyor belt 4 will be stretched or shrunk accordingly, so as to support the material extractor 10 well, this structure can meet the needs of random steering during material conveying, and can be steered according to the actual size of the plant and the placement position of the equipment, so as to achieve better material conveying work, through the setting of material extractor 10, the material can be input to mounting arm 12 through corrugated pipe 11, and then the material can be conveyed to another conveyor belt 4 through the setting of mounting arm 12, after the steering work of the two conveyor belts 4, the material transmission work in the middle can be carried out through the material extractor 10, so as not to affect the material conveying work due to steering, and the corrugated pipe 11 arranged can not only play the conveying effect, but also can be stretched and shrunk according to the position of the conveyor belt 4, so as to fix the position of mounting arm 12 with bolt 13.

[0035] As Figure 1 , 5As shown, an efficient wheeled steering conveyor, the top and bottom of the conveying belt 4 is symmetrically installed with side plate 3, one side of the side plate 3 is fixedly connected with the second servo motor 5, the inner cavity of the side plate 3 is installed with the belt 6, the left and right sides of the inner cavity of the belt 6 are symmetrically installed with the pulley 7, the side plate 3 is close to the side of the conveying belt 4 and the cavity structure is communicated with the outside, one end of the pulley 7 is fixedly connected with the connecting shaft 8, one end of the second servo motor 5 is fixedly connected with one of the pulleys 7 through the rotating shaft, the second servo motor 5 is started to drive the pulley 7 on one side to rotate, at this time the pulley 7 on one side will drive the belt 6 to rotate, at this time the two belts 6 can drive the two pulleys 7 in the inner cavity to rotate, which can rotate through the connecting shaft 8, at this time the conveying belt 4 can be driven to rotate, so as to start the conveying work of the material.

[0036] As shown, Figures 1-3 As shown, an efficient wheeled steering conveyor, the back of the side plate 3 is fixedly connected with the support column 14, the left and right sides of the outer wall of the support column 14 are symmetrically movably connected with the supporting floor 18, the inner cavity of the support column 14 is movably connected with the handle 16, the bottom of the support column 14 is movably connected with the moving wheel 23, the bottom of the support column 14 is movably connected with the rotating block 21, the back of the rotating block 21 is centrally provided with the groove 22, the moving wheel 23 is movably connected in the inner cavity of the groove 22, the back of the left and right sides of the support column 14 is symmetrically provided with the second through slot 17, the inner cavity of the second through slot 17 is movably connected with the lead screw 20, the front of the lead screw 20 is fixedly connected with the center of the back of the handle 16, the outer wall of the support column 14 is provided with the first through slot 15, the handle 16 is movably connected in the inner cavity of the first through slot 15, the front of the supporting floor 18 on one side is symmetrically fixedly connected with the movable block 19, the movable block 19 is movably connected in the inner cavity of the second through slot 17, the movable block 19 is threadedly connected with the outer wall of the lead screw 20, the conveying belt 4 can be freely moved through the moving wheel 23 by the rotatable rotating block 21, so as to transfer the position, the first through slot 15 is rotatably arranged, the lead screw 20 can be driven to rotate, so that the movable block 19 can be threadedly connected with the lead screw 20, at this time the movable block 19 can drive the supporting floor 18 on both sides to move until the supporting floor 18 is in contact with the ground, at this time the supporting floor 18 can replace the moving wheel 23 to contact with the ground, so as to have the supporting effect, which can have the stable effect in the conveying process of the material.

[0037] As shown, Figure 1 , 6The utility model provides an efficient wheel type steering conveyor, one side of side plate 3 is fixedly connected with fixed stake 25, the front of fixed stake 25 is movably connected with cleaning assembly 24, the top of right side conveying belt 4 is fixedly connected with processing box 31, the bottom of processing box 31 inner chamber is installed with filter plate 34, the front of both sides fixed stake 25 is centrally provided with movable slot 26, the bottom of cleaning assembly 24 is fixedly connected with brush 27, the back of cleaning assembly 24 is fixedly connected with third servo motor 28 through second rotating shaft, third servo motor 28 is movably connected in movable slot 26 inner chamber, the back of third servo motor 28 is fixedly connected with threaded rod 30 in the middle, threaded rod 30 is rotatably connected on the back of movable slot 26 inner chamber, connecting block 29 is movably connected on the back of movable slot 26 inner chamber and is threadedly connected on the outer wall of threaded rod 30, one end of threaded rod 30 is fixedly connected with driving motor through third rotating shaft, driving motor is fixedly connected on the side of fixed stake 25, the front of processing box 31 bottom is provided with feeding port 32, the top of processing box 31 is centrally threadedly connected with mounting plate 33, processing box 31 is the structure that top and back communicate with the outside, the back of filter plate 34 is fixedly connected with vibration motor 37 in the middle, the front of filter plate 34 is symmetrically threadedly connected with mounting column 35 all around, the front of mounting column 35 is fixedly connected with spring 36, the front of spring 36 is fixedly connected on the top of processing box 31 inner chamber, by starting the third servo motor 28 of setting, can drive cleaning assembly 24 to rotate, when conveying belt 4 works, cleaning assembly 24 can move to the outside, so as not to affect the normal work of conveying belt 4, by rotating the threaded rod 30 of setting, connecting block 29 can be threadedly connected with it, at this moment can drive brush 27 to move on the front of conveying belt 4, after the material conveying is finished, cleaning work can be carried out to conveying belt 4, by starting the vibration motor 37 of setting, can drive filter plate 34 to vibrate, so as to filter the material of conveying, can filter the stone and bulky sundries contained, so as to guarantee the precision of material.

[0038] It needs explanation, the present application is a kind of efficient wheeled steering conveyor, when using, the conveyor belt 4 is moved to the appropriate position by the moving wheel 23, after moving, the position of two conveyor belts 4 is adjusted according to the position of factory building and the position of processing equipment, the first servo motor 2 is started, the rotating shaft 1 is driven to rotate, so as to drive one of the conveyor belts 4 to rotate, when the conveyor belt 4 rotates, the corrugated connecting pipe 9 will be correspondingly stretched or shrunk, so as to complete the steering work of the conveyor belt 4, after steering work is completed, the mounting arm 12 is installed on the side edge of the side plate 3 through bolt 13, the rotating handle 16 in each support column 14 is rotated, which drives the screw rod 20 to rotate in the inner cavity of the first through slot 15, at this time, the rotating handle 16 will drive the screw rod 20 to rotate in the inner cavity of the second through slot 17, so that the movable block 19 can be threadedly connected with the screw rod 20, so as to drive the ground supporting plate 18 on both sides to move, until the moving wheel 23 is in contact with the ground, the second servo motor 5 is started, one of the pulleys 7 is driven to rotate, so that the pulley 7 can rotate through the belt 6, so as to drive the connecting shaft 8 to rotate, at this time, the conveyor belt 4 can be driven to rotate, so as to carry out the conveying work of materials, when the materials enter the inner cavity of the processing box 31 through the feeding port 32, the vibration motor 37 is started, the filter plate 34 is driven to vibrate, so as to filter the large-volume sundries of materials, after the whole conveying of materials is completed, the mounting plate 33 is removed, the filter plate 34 is continuously cleaned, the third servo motor 28 is started, the cleaning assembly 24 is rotated to the front surface of the conveyor belt 4, the threaded rod 30 is started, so that the connecting block 29 can be threadedly connected, so that the brush 27 is moved on the front surface of the conveyor belt 4 by the cleaning assembly 24, so as to clean the surface.

[0039] The basic principles and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, the above examples and descriptions in the specification are only to illustrate the principles of the present application, various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-performance wheeled diverting conveyor comprising a rotation shaft (1), characterized in that: The left and right sides of the rotating shaft (1) are symmetrically provided with conveying belts (4), and the opposite sides of the two conveying belts (4) are fixedly connected with corrugated connecting pipes (9), the top of the corrugated connecting pipe (9) is provided with a material extractor (10), the top of the material extractor (10) is fixedly connected with a corrugated pipe (11), and the top of the corrugated pipe (11) is fixedly connected with a mounting arm (12); The top and bottom of the conveying belt (4) are symmetrically provided with side plates (3), one side of the side plate (3) is fixedly connected with a second servo motor (5), and the inner cavity of the side plate (3) is provided with a belt (6), and the left and right sides of the inner cavity of the belt (6) are symmetrically provided with belt pulleys (7); The back of the side plate (3) is fixedly connected with a supporting column (14), the left and right sides of the outer wall of the supporting column (14) are symmetrically movably connected with a supporting plate (18), and the inner cavity of the supporting column (14) is movably connected with a rotating handle (16). One side of the side plate (3) is fixedly connected with a fixed pile (25), the front of the fixed pile (25) is movably connected with a cleaning assembly (24), the top of the right conveying belt (4) is fixedly connected with a treatment box (31), and the bottom of the inner cavity of the treatment box (31) is provided with a filter plate (34); The back of the rotating shaft (1) is fixedly connected with a first servo motor (2) through a shaft coupling, the side plate (3) has four, one of the top side plates (3) is fixedly connected to the left side of the rotating shaft (1), the bottom of one of the top side plates (3) is movably connected to the top of the rotating shaft (1), the left and right sides of the corrugated connecting pipe (9) are fixedly connected to the opposite sides of the two side plates (3), and the front left side of the first servo motor (2) is fixedly connected to the back of the left side plate (3); The left side of the bottom of the material extractor (10) is fixedly connected to the front of the left side plate (3), the inner cavities of the corrugated pipe (11) and the mounting arm (12) are communicated, the mounting arm (12) is a cavity structure with the outside communicated at the bottom, and the mounting arm (12) is threadedly connected to the opposite side of the two right side plates (3) through bolts (13); The side plate (3) is a cavity structure with the outside communicated at the side close to the conveying belt (4), one end of the belt pulley (7) is fixedly connected with a connecting shaft (8), and one end of the second servo motor (5) is fixedly connected with one of the belt pulleys (7) through a rotating shaft; The bottom of the supporting column (14) is movably connected with a rotating block (21), a groove (22) is formed in the back of the rotating block (21), and the moving wheel (23) is movably connected in the inner cavity of the groove (22).

2. A high efficiency wheeled diverting conveyor as claimed in claim 1, wherein: The back of the supporting column (14) is symmetrically provided with a second through groove (17) on both sides, a screw rod (20) is rotationally connected to the middle of the inner cavity of the second through groove (17), the front surface of the screw rod (20) is fixedly connected to the middle of the back surface of the handle (16), the outer wall of the supporting column (14) is provided with a first through groove (15), and the handle (16) is rotationally connected in the inner cavity of the first through groove (15).

3. A high efficiency wheeled diverting conveyor as claimed in claim 2, wherein: The front surface of the supporting column (14) is symmetrically provided with a second through groove (17) on both sides, a screw rod (20) is rotationally connected to the middle of the inner cavity of the second through groove (17), the front surface of the screw rod (20) is fixedly connected to the middle of the back surface of the handle (16), the outer wall of the supporting column (14) is provided with a first through groove (15), and the handle (16) is rotationally connected in the inner cavity of the first through groove (15).

4. A high efficiency wheeled diverting conveyor as claimed in claim 3, wherein: The front surface of the supporting column (14) is symmetrically provided with a second through groove (17) on both sides, a screw rod (20) is rotationally connected to the middle of the inner cavity of the second through groove (17), the front surface of the screw rod (20) is fixedly connected to the middle of the back surface of the handle (16), the outer wall of the supporting column (14) is provided with a first through groove (15), and the handle (16) is rotationally connected in the inner cavity of the first through groove (15).

5. A high efficiency wheeled diverting conveyor as claimed in claim 4, wherein: The front surface of the supporting column (14) is symmetrically provided with a second through groove (17) on both sides, a screw rod (20) is rotationally connected to the middle of the inner cavity of the second through groove (17), the front surface of the screw rod (20) is fixedly connected to the middle of the back surface of the handle (16), the outer wall of the supporting column (14) is provided with a first through groove (15), and the handle (16) is rotationally connected in the inner cavity of the first through groove (15). The front surface of the supporting column (14) is symmetrically provided with a second through groove (17) on both sides, a screw rod (20) is rotationally connected to the middle of the inner cavity of the second through groove (17), the front surface of the screw rod (20) is fixedly connected to the middle of the back surface of the handle (16), the outer wall of the supporting column (14) is provided with a first through groove (15), and the handle (16) is rotationally connected in the inner cavity of the first through groove (15).

Citation Information

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