Single support wheel for preventing rope from falling off

Abstract

The cam is provided with a plurality of guide wheels, and the guide wheels are provided with a plurality of guide wheels at the upper end thereof, and the guide wheels are provided with a plurality of guide wheels at the upper end thereof.

Description

Technical Field

[0001] The invention relates to the technical field of overhead passenger devices, and in particular to a single supporting wheel to prevent ropes from falling off. Background Art

[0002] The overhead passenger device is an important personnel or material transportation equipment in coal mines and other enterprises. The overhead passenger device, commonly known as the "monkey car", is a series of rope personnel transportation systems developed and developed according to the characteristics of underground coal mine tunnels. It is mainly used for personnel transportation in up and down inclined shafts or horizontal tunnels. Its important components are composed of a driving device, a supporting and pressing rope wheel, a hanging chair, a rope grip, a detour wheel device, a tensioning device and a traction wire rope. The wire rope is installed on the driving wheel, the supporting rope wheel, the pressure rope wheel and the detour wheel. After being tightened by the tensioning device, the driving device outputs power to drive the driving wheel and the wire rope to run. Under the action of gravity, the wire rope drives the rope grip to move, and the rope grip drives the hanging chair and passengers to move, thereby achieving the purpose of transporting miners.

[0003] Chinese patent (CN219619088U) discloses a bidirectional single-support wheel anti-rope-drop device, comprising a single support wheel, a single support wheel pipe clamp, a hanger, a hanger top plate, an anti-rope-drop baffle and an anti-rope-drop fixing plate, wherein the hanger is arranged on the overhead passenger device through the hanger top plate, the single support wheel is rotatably arranged on the hanger through the single support wheel pipe clamp, the anti-rope-drop fixing plate is arranged on the hanger, the anti-rope-drop baffle is arranged on the anti-rope-drop fixing plate, and a protruding clamping plate structure is arranged on the anti-rope-drop baffle, and the anti-rope-drop baffle is used to clamp the steel wire rope that may fall in the baffle groove, thereby effectively solving the problem of the steel wire rope falling and injuring people after falling out of the groove.

[0004] In the above patent, the anti-rope-drop baffle can play a certain role in preventing the rope from dropping. However, when the wire rope drives the rope gripper to contact the anti-rope-drop baffle, the rope gripper moves and pushes the anti-rope-drop baffle to swing. When the rope gripper passes completely, the anti-rope-drop baffle is reset. During this process, the anti-rope-drop baffle cannot limit the wire rope. During the contact between the rope gripper and the anti-rope-drop baffle, the wire rope is at risk of falling off the supporting wheel. In addition, the upper side of the supporting wheel is generally fixed with door-type bolts. The bolts are easily rusted and aged due to long-term exposure to the air. The supporting wheel needs to be removed regularly for inspection and maintenance. However, when the bolts fail due to rust, it is not convenient for maintenance personnel to disassemble them. Violent disassembly will damage the supporting wheel body and be time-consuming and laborious.

[0005] Therefore, the present invention provides a single support wheel for preventing rope from falling off to solve the above-mentioned problem. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a single supporting wheel to prevent rope dropping, which solves the problem that the wire rope is easily detached from the supporting wheel groove when the rope gripper contacts the anti-rope dropping baffle, and the problem that it is inconvenient to disassemble the supporting wheel.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is:

[0008] A single supporting wheel for preventing rope from falling comprises a supporting rod in the up-and-down direction, a rotating shaft in the front-and-back axial direction is fixedly connected to the lower end of the supporting rod, a supporting wheel is rotatably connected to the rotating shaft, a truncated cone-shaped baffle is fixedly connected to the rear side of the supporting wheel, a fixing plate is coaxially fixedly connected to the front end of the rotating shaft, an annular shell located in front of the fixing plate is coaxially rotatably connected to the rotating shaft, a plurality of blocks are evenly distributed on the upper end of the annular shell, a slide groove is respectively provided on the left and right sides of the block, the two slide groove openings are opposite to each other, a slider is slidably connected in the slide groove, the opposite ends of the two sliders are respectively connected to the side walls of the slide groove on the corresponding sides thereof through a first spring, a slide plate in the front-and-back axial direction and annular is slidably connected in the annular shell, the slide plate can move forward and backward and limit the annular shell;

[0009] The upper end of the support rod is fixedly connected to a control box, and a left and right axial guide shaft is rotatably connected in the control box. A guide groove is opened on the guide shaft, and the guide groove consists of a spiral groove and a straight groove. The right end of the straight groove is connected to the left end of the spiral groove. A swing rod is fixedly connected to the outer edge surface of the guide shaft, and an arc plate coaxial with the guide shaft is fixedly connected to the free end of the swing rod. A connecting block is fixedly connected to the middle of the inner arc surface of the arc plate, and the upper end surface of the connecting block is a plane. A rectangular frame is slidably connected in the control box, and a U-shaped block that can move left and right and has an opening facing upward is provided in the control box. A guide column inserted into the guide groove is fixedly connected to the upper end of the U-shaped block, and the rectangular frame can move up and down as the U-shaped block moves left and right.

[0010] Preferably, the annular shell is provided with a plurality of arc grooves corresponding to the stop blocks one by one and passing through the upper and lower parts. The lower end of the slide groove is connected to the arc groove. The lower end of the slider is fixedly connected to a wedge block. The wedge block can push the slider to move forward. The front end of the slider is connected to the rear side wall of the annular shell via a second spring.

[0011] Preferably, the slide plate is provided with a plurality of receiving grooves corresponding to the wedge blocks one by one, the lower end of the wedge block extends into the arc-shaped groove and is slidably connected with the receiving groove on the corresponding side, the front end face of the wedge block is an inclined surface, and the front end faces of every two left and right opposite wedge blocks are distributed in an eight-shaped shape, and the inclined surface of the wedge block can contact the rear end face of the slide plate.

[0012] Preferably, the fixed plate is provided with a plurality of limit grooves evenly distributed along its circumferential direction and opening forward, a plurality of limit columns are fixedly connected to the front end of the slide plate, and the rear ends of the limit columns penetrate the annular shell and can be inserted into the limit grooves.

[0013] Preferably, the number of the blocks is five.

[0014] Preferably, the front and rear sides of the upper end of the control box are respectively provided with through grooves in the left and right directions and penetrating up and down, the free end of the arc plate can extend out of the through groove, the upper side wall of the control box is provided with a sliding groove located between the two through grooves, the upper end of the rectangular frame is slidably connected to the sliding groove, and the upper end of the rectangular frame can extend out of the sliding groove.

[0015] Preferably, a left-right axial screw is rotatably connected inside the control box, the right end of the screw passes through the control box and is coaxially provided with a handle, the screw is threadedly connected to the U-shaped block, and a clearance groove is opened on the lower side of the rectangular frame, which passes through the upper and lower sides and the left and right directions. The width of the clearance groove is greater than the width of the U-shaped block, and the U-shaped block can pass through the clearance groove.

[0016] Preferably, control grooves that penetrate inside and outside are respectively opened on the front and rear side walls of the rectangular frame. The control grooves are composed of a transverse groove and an oblique groove. The oblique groove is inclined with the left side lower than the right side. The right end of the oblique groove is connected to the transverse groove. The front and rear sides of the U-shaped block are respectively fixedly connected with sliding columns, and the free ends of the sliding columns are inserted into the control grooves on the corresponding sides.

[0017] Preferably, the length of the transverse groove in the left-right direction is equal to the length of the spiral groove in the left-right direction, and the length of the inclined groove in the left-right direction is equal to the length of the straight groove in the left-right direction.

[0018] The beneficial effects of the present invention are:

[0019] 1. Through the coordinated use of the supporting wheel, the baffle, the annular shell, the block, the slider, the first spring, the slider, the second spring, the wedge block, the limit groove and the limit column, when the cable gripper contacts the block, the limit on the annular shell can be released, so that the block no longer blocks the cable gripper, and the cable gripper drives the annular shell to rotate. When the cable gripper is out of contact with the slider, the annular shell rotates 72 degrees, and the next block swings upward to the limit position. In this cycle, the block and the baffle limit the wire rope on the supporting wheel to prevent the wire rope from escaping from the supporting wheel, and when the block in the vertical direction moves at an angle, the next block will swing upward. During the contact process between the locking device and the block, the next block has risen to a position that can block the wire rope, which can effectively prevent the wire rope from escaping from the supporting wheel, and no matter the locking device is from left to right or from right to left, the limiting effect of the block on the wire rope can be effective.

[0020] 2. Through the coordinated use of the support rod, control box, screw, U-shaped block, arc plate and rectangular frame, the arc plate can extend upward from the control box and bypass the crossbeam, so that the crossbeam is located inside the arc plate. At the same time, the arc plate drives the connecting block to swing upward to the limit position, and then the rectangular frame can move upward, and the distance between the rectangular frame and the connecting block can be continuously reduced. With the cooperation of the rectangular frame and the connecting block, the crossbeam and the support rod are fixed. When the supporting wheel needs to be installed or removed, it is only necessary to turn the screw to control the screw to rotate clockwise or counterclockwise to achieve installation or removal. The operation is simple and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric drawing of the present invention.

[0022] Figure 2 It is a cutaway main axonometric view of the present invention.

[0023] Figure 3 It is a cutaway main axonometric view of the present invention.

[0024] Figure 4 It is a full-section left-view axonometric view of the present invention.

[0025] Figure 5 It is a cutaway top axonometric view of the present invention.

[0026] Figure 6 It is a cutaway top axonometric view of the present invention.

[0027] Figure 7 This is a full-section front axonometric view of the control box of the present invention.

[0028] Figure 8 It is a cutaway right axonometric view of the control box of the present invention.

[0029] Fig. 9 It is a cutaway right axonometric view of the control box of the present invention.

[0030] Fig.10 It is a schematic structural diagram of the sliding column and the rectangular frame in the present invention.

[0031] Fig.11 It is the parts diagram of the guide shaft in the present invention.

[0032] In the figure: 1. support rod; 2. rotating shaft; 3. supporting wheel; 4. baffle; 5. fixing plate; 6. annular shell; 7. block; 8. slide groove; 9. slider; 10. first spring; 11. slide plate; 12. control box; 13. guide shaft; 14. spiral groove; 15. straight groove; 16. rocker rod; 17. arc plate; 18. connecting block; 19. rectangular frame; 20. U-shaped block; 21. guide column; 22. wedge block; 23. second spring; 24. limit column; 25. through groove; 26. screw; 27. handle; 28. transverse groove; 29. ​​inclined groove; 30. slide column; 31. clearance groove. DETAILED DESCRIPTION

[0033] The following will refer to Figure 1-Figure 11 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0034] A single support wheel to prevent rope from falling off, such as Figure 1-11As shown, it includes a support rod 1 in the up and down direction, a rotating shaft 2 in the front and rear axial direction is fixedly connected to the lower end of the support rod 1, a supporting wheel 3 is rotatably connected to the rotating shaft 2, a truncated cone-shaped baffle plate 4 is fixedly connected to the rear side of the supporting wheel 3, a fixing plate 5 is coaxially fixedly connected to the front end of the rotating shaft 2, an annular shell 6 located in front of the fixing plate 5 is coaxially rotatably connected to the rotating shaft 2, a plurality of stoppers 7 are evenly distributed on the upper end of the annular shell 6, a slide groove 8 is respectively provided on the left and right sides of the stopper 7, the two slide grooves 8 are opened back to back, a slider 9 is slidably connected in the slide groove 8, the opposite ends of the two sliders 9 are respectively connected to the side walls of the slide groove 8 on the corresponding sides thereof through a first spring 10, a front and rear axial and annular slide plate 11 is slidably connected in the annular shell 6, and the slide plate 11 can move forward and backward and limit the annular shell 6;

[0035] The upper end of the support rod 1 is fixedly connected to a control box 12, and a left and right axial guide shaft 13 is rotatably connected in the control box 12. A guide groove is opened on the guide shaft 13, and the guide groove consists of a spiral groove 14 and a straight groove 15. The right end of the straight groove 15 is connected to the left end of the spiral groove 14. A swing rod 16 is fixedly connected to the outer edge surface of the guide shaft 13, and an arc plate 17 coaxial with the guide shaft 13 is fixedly connected to the free end of the swing rod 16. A connecting block 18 is fixedly connected to the middle of the inner arc surface of the arc plate 17, and the upper end surface of the connecting block 18 is a plane. A rectangular frame 19 is slidably connected in the control box 12, and a U-shaped block 20 that can move left and right and has an opening facing upward is provided in the control box 12. A guide column 21 inserted into the guide groove is fixedly connected to the upper end of the U-shaped block 20, and the rectangular frame 19 can move up and down as the U-shaped block 20 moves left and right.

[0036] like Figure 3 , Figure 4 and Figure 5 As shown, the annular shell 6 is provided with a plurality of arc grooves corresponding to the stoppers 7 one by one and extending vertically, the lower end of the slide groove 8 is connected to the arc groove, and a wedge block 22 is fixedly connected to the lower end of the slider 9. The wedge block 22 can push the slide plate 11 to move forward, and the front end of the slide plate 11 is connected to the rear side wall of the annular shell 6 via the second spring 23; when the wedge block 22 moves toward the center of the slide plate 11, the wedge block 22 pushes the slide plate 11 to move forward and compresses the second spring 23, and when the wedge block 22 moves toward a direction away from the center of the slide plate 11, the slide plate 11 moves backward under the action of the second spring 23.

[0037] like Figure 2 , Figure 3 and Figure 5As shown, the slide plate 11 is provided with a plurality of receiving grooves corresponding to the wedge blocks 22 one by one, the lower ends of the wedge blocks 22 extend into the arc-shaped grooves and are slidably connected to the receiving grooves on the corresponding sides thereof, the front end faces of the wedge blocks 22 are inclined faces, the front end faces of every two left and right opposite wedge blocks 22 are distributed in an eight-shaped shape, and the inclined faces of the wedge blocks 22 can contact the rear end faces of the slide plate 11; when the wedge blocks 22 move toward the center of the slide plate 11, the inclined faces of the wedge blocks 22 push the slide plate 11 to move forward, and when the wedge blocks 22 move toward a direction away from the center of the slide plate 11, the front end of the slide plate 11 keeps in contact with the inclined faces of the wedge blocks 22, and the slide plate 11 moves backward under the action of the second spring 23.

[0038] like Figure 3 , Figure 4 and Figure 6 As shown, the fixed plate 5 is provided with a plurality of limit grooves which are evenly distributed along its circumferential direction and open to the front, a plurality of limit columns 24 are fixedly connected to the front end of the slide plate 11, and the rear end of the limit columns 24 penetrates the annular shell 6 and can be inserted into the limit grooves; when the slide plate 11 drives the limit columns 24 to move forward out of the limit grooves, the limit on the annular shell 6 can be released, and when the slide plate 11 drives the limit columns 24 to insert backward into the limit grooves, the annular shell 6 can be limited.

[0039] like Figure 1 , Figure 2 and Figure 3 As shown, the number of the blocks 7 is five; when the rope gripper contacts the block 7, the rope gripper pushes the block 7 to drive the annular shell 6 to rotate around the rotating shaft 2; when the rope gripper is out of contact with the block 7, the block 7 drives the annular shell 6 to rotate seventy-two degrees, during which the next block 7 rotates seventy-two degrees to a vertical position, that is, rotates to the position of the previous block 7.

[0040] like Figure 8 and Fig. 9 As shown, the front and rear sides of the upper end of the control box 12 are respectively provided with through grooves 25 in the left and right directions and through the upper and lower parts, the free end of the arc plate 17 can extend out of the through groove 25, the upper side wall of the control box 12 is provided with a sliding groove located between the two through grooves 25, the upper end of the rectangular frame 19 is slidably connected to the sliding groove, and the upper end of the rectangular frame 19 can extend out of the sliding groove; when the arc plate 17 rotates around the guide shaft 13, the free end of the arc plate 17 can extend out of the through groove 25, and when the rectangular frame 19 moves upward, the upper end of the rectangular frame 19 can extend out of the sliding groove.

[0041] like Figure 7As shown, a left-right axial screw rod 26 is rotatably connected inside the control box 12, the right end of the screw rod 26 passes through the control box 12 and is coaxially provided with a handle 27, the screw rod 26 is threadedly connected to the U-shaped block 20, and a clearance groove 31 is provided on the lower side of the rectangular frame 19, which passes through the upper and lower sides and the left and right directions. The width of the clearance groove 31 is greater than the width of the U-shaped block 20, and the U-shaped block 20 can pass through the clearance groove 31; when the screw rod 26 rotates clockwise, the screw rod 26 drives the U-shaped block 20 to move to the left, and when the screw rod 26 rotates counterclockwise, the screw rod 26 drives the U-shaped block 20 to move to the right.

[0042] like Figure 8 and Fig.10 As shown, the front and rear side walls of the rectangular frame 19 are respectively provided with control grooves that penetrate inside and outside, and the control grooves are composed of a transverse groove 28 and an oblique groove 29. The oblique groove 29 is in an inclined state with the left side lower and the right side higher. The right end of the oblique groove 29 is connected to the transverse groove 28. The front and rear sides of the U-shaped block 20 are respectively fixedly connected with sliding columns 30, and the free ends of the sliding columns 30 are inserted into the control grooves on the corresponding sides; when the U-shaped block 20 drives the sliding column 30 to slide in the transverse groove 28 in the control groove, the rectangular frame 19 does not move in the up and down directions. When the U-shaped block 20 drives the sliding column 30 to slide from right to left in the oblique groove 29 in the control groove, the rectangular frame 19 moves upward, and when the U-shaped block 20 drives the sliding column 30 to slide from left to right in the oblique groove 29, the rectangular frame 19 moves downward.

[0043] like Fig.10 and Fig.11 As shown, the length of the transverse groove 28 in the left-right direction is equal to the length of the spiral groove 14 in the left-right direction, and the length of the inclined groove 29 in the left-right direction is equal to the length of the straight groove 15 in the left-right direction; when the guide column 21 slides from right to left in the spiral groove 14, the guide shaft 13 rotates counterclockwise, and the guide shaft 13 drives the arc plate 17 to rotate counterclockwise through the swing rod 16, and the free end of the arc plate 17 extends through the groove 25, and at the same time, the U-shaped plate drives the sliding column 30 to slide in the transverse groove 28, and when the guide column 21 slides to the straight groove 15, the arc plate The free end of 17 is inserted into the through groove 25 on the front side. At this time, the arc plate 17 drives the connecting block 18 to swing upward to the limit position. The arc plate 17 can bypass the cross beam. The free end of the arc plate 17 is inserted into the through groove 25 on the front side. The sliding column 30 moves from the cross groove 28 to the inclined groove 29. When the sliding column 30 moves to the left in the inclined groove 29, the rectangular frame 19 moves upward, and the guide column 21 moves to the left in the straight groove 15. The position of the arc plate 17 is limited, and the distance between the upper end of the rectangular frame 19 and the connecting block 18 is reduced, so that the cross beam can be clamped and fixed.

[0044] When the present invention is in use, the support rod 1 is fixedly connected to the cross beam, and the screw rod 26 is rotated clockwise, and the screw rod 26 drives the U-shaped block 20 to move leftward, and the U-shaped block 20 drives the sliding column 30 to move leftward in the cross groove 28, and the rectangular frame 19 does not move in the up and down directions. The rectangular frame 19 is at the lower limit position at this time. At the same time, the U-shaped block 20 drives the guide column 21 to move leftward, and the guide column 21 moves leftward in the spiral groove 14, so that the guide column 21 rotates counterclockwise, and the guide column 21 drives the arc plate 17 to rotate counterclockwise through the swing rod 16, so that the free end of the arc plate 17 extends out of the control box 12 through the through groove 25 on the rear side. When the U-shaped block 20 drives the sliding column 30 to slide to the inclined groove 29, the U-shaped block 20 drives the guide column 21 to slide from the spiral groove 14 to the straight groove 15. At this time, the guide shaft 13 drives the free end of the arc plate 17 to bypass the cross beam through the swing rod 16 and insert it into the through groove 25 on the front side. The beam is now located in the arc plate 17, and the arc plate 17 drives the connecting block 18 so that the lower end surface of the connecting block 18 is located just above the rectangular frame 19. The screw rod 26 continues to be rotated clockwise, and the U-shaped block 20 drives the guide column 21 to move leftward in the inclined groove 29, so that the rectangular frame 19 moves upward out of the sliding groove, and the distance between the upper end of the rectangular frame 19 and the connecting block 18 gradually becomes smaller. At the same time, the U-shaped block 20 drives the guide column 21 to move leftward in the straight groove 15, and the position of the arc plate 17 remains unchanged. When the upper end surface of the rectangular frame 19 and the lower end surface of the connecting block 18 contact and clamp the cross beam, the screw rod 26 is stopped, and the fixing of the support rod 1 and the cross beam is completed, and the support rod 1 and the cross beam are in a vertical position relationship, so that the wire rope is located above the supporting wheel 3, and the supporting wheel 3 plays a supporting and guiding role for the wire rope. When the wire rope moves, it can drive the supporting wheel 3 to rotate. The existence of the block 7 and the baffle 4 can prevent the wire rope from detaching from the supporting wheel 3.

[0045] The locking device moves with the wire rope under the force of the gravity of the hanging chair and the passengers. When the locking device contacts the slider 9, the locking device pushes the slider 9 to move toward the center of the annular shell 6. The slider 9 moves toward the center of the annular shell 6 and compresses the first spring 10. The slider 9 drives the wedge block 22 to move toward the center of the annular shell 6. The inclined surface of the wedge block 22 pushes the slide plate 11 to move forward and compresses the second spring 23. The slide plate 11 drives multiple limit columns 24 to move forward out of the limit groove to release the limit on the annular shell 6. At this time, the cable gripper pushes the slide plate 9 to move. The slide plate 9 drives the annular shell 6 to rotate through the stopper 7. The annular shell 6 drives multiple stoppers 7 to rotate. When the annular shell 6 rotates seventy-two degrees, the cable gripper continues to move with the wire rope and disengages from the slider 9. The cable gripper no longer squeezes the slider 9. At this time, the slider 9 is under the action of the first spring 10. Under the force, it moves in the direction away from the center of the annular shell 6, and the slider 9 drives the wedge block 22 to move in the direction away from the center of the annular shell 6. The rear end face of the slide plate 11 contacts the inclined surface of the wedge block 22 under the action of the second spring 23, and the slide plate 11 moves backward with the inclined surface of the wedge block 22. The slide plate 11 drives multiple limit columns 24 to be inserted backward into the limit groove to limit the annular shell 6. At this time, the next block 7 is in the vertical direction and still blocks the wire rope. When the vertical block 7 moves at an angle, the next block 7 will swing upward. During the contact process between the locking device and the block 7, the next block 7 has risen to a position that can block the wire rope, which can effectively prevent the wire rope from detaching from the supporting wheel 3, and no matter the locking device moves from left to right or from right to left, the limiting effect of the block 7 on the wire rope can be effective.

[0046] When it is necessary to remove the supporting wheel 3 for maintenance, the screw 26 is rotated counterclockwise, and the screw 26 drives the U-shaped block 20 to move rightward, and the U-shaped block 20 drives the sliding column 30 to move rightward in the inclined groove 29, so that the rectangular frame 19 moves downward, and at the same time, the U-shaped block 20 drives the guide column 21 to move rightward in the straight groove 15, and the guide shaft 13 does not rotate. When the U-shaped block 20 drives the sliding column 30 to slide to the transverse groove 28, the rectangular frame 19 moves downward to the initial position. At this time, the U-shaped block 20 drives the guide column 21 to slide into the spiral groove 14. As the U-shaped block 20 moves rightward, The guide column 21 moves to the right in the spiral groove 14, so that the guide column 21 rotates clockwise, and the guide column 21 drives the arc plate 17 to rotate clockwise through the rocker 16. When the U-shaped block 20 moves to the right to the initial position, the U-shaped block 20 drives the guide column 21 to move to the right in the spiral groove 14 to the initial position. At this time, the guide shaft 13 drives the arc plate 17 to be completely retracted into the control box 12, and the U-shaped block 20 drives the sliding column 30 to move to the right in the transverse groove 28 to the initial position, so that the support rod 1 is separated from the cross beam, which is convenient for the inspection and maintenance of the supporting wheel 3.

[0047] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0048] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A single support wheel for preventing rope from falling, comprising a support rod (1) in the up and down directions, characterized in that: The lower end of the support rod (1) is fixedly connected to a rotating shaft (2) in a front-to-back axial direction, a supporting wheel (3) is rotatably connected to the rotating shaft (2), a truncated cone-shaped baffle (4) is fixedly connected to the rear side of the supporting wheel (3), a fixed plate (5) is coaxially fixedly connected to the front end of the rotating shaft (2), an annular shell (6) located in front of the fixed plate (5) is coaxially rotatably connected to the rotating shaft (2), a plurality of stoppers (7) are evenly distributed on the upper end of the annular shell (6), a slide groove (8) is respectively provided on the left and right sides of the stopper (7), the two slide grooves (8) are opened opposite to each other, a slider (9) is slidably connected in the slide groove (8), the opposite ends of the two sliders (9) are respectively connected to the side wall of the slide groove (8) on the corresponding side thereof via a first spring (10), and a slide plate in a front-to-back axial direction and annular is slidably connected in the annular shell (6). (11), the annular shell (6) is provided with a plurality of arc grooves corresponding to the stoppers (7) one by one and extending vertically, the lower end of the slide groove (8) is connected to the arc groove, the lower end of the slider (9) is fixedly connected with a wedge block (22), the wedge block (22) can push the slide plate (11) to move forward, the front end of the slide plate (11) is connected to the rear side wall of the annular shell (6) via a second spring (23), the slide plate (11) is provided with a plurality of receiving grooves corresponding to the wedge blocks (22) one by one, the lower end of the wedge block (22) extends into the arc groove and is slidably connected to the receiving groove on the corresponding side, the front end surface of the wedge block (22) is an inclined surface, the front end surfaces of each two left and right opposite wedge blocks (22) are distributed in an eight-shaped shape, and the inclined surface of the wedge block (22) can be aligned with the slide plate ( The rear end surface of the slide plate (11) is in contact with the rear end surface of the slide plate (11), a plurality of limit grooves are uniformly distributed along the circumferential direction thereof and open to the front, a plurality of limit columns (24) are fixedly connected to the front end of the slide plate (11), the rear end of the limit column (24) penetrates the annular shell (6) and can be inserted into the limit groove, when the locking device contacts the slider (9), the locking device pushes the slider (9) to move toward the center of the annular shell (6), the slider (9) moves toward the center of the annular shell (6) and compresses the first spring (10), the slider (9) drives the wedge block (22) to move toward the center of the annular shell (6), the inclined surface of the wedge block (22) drives the slide plate (11) to move forward and compresses the second spring (23), the slide plate (11) drives the plurality of limit columns (24) to move forward and compress ... ) moves forward out of the limiting groove, releasing the limiting of the annular shell (6); when the annular shell (6) rotates 72 degrees, the cable gripper continues to move with the wire rope and is out of contact with the slider (9), and the cable gripper no longer presses the slider (9). At this time, the slider (9) moves in a direction away from the center of the annular shell (6) under the action of the first spring (10), and the slider (9) drives the wedge block (22) to move in a direction away from the center of the annular shell (6). The rear end surface of the slide plate (11) contacts the inclined surface of the wedge block (22) under the action of the second spring (23), and the slide plate (11) moves backward along the inclined surface of the wedge block (22). The slide plate (11) drives a plurality of limiting posts (24) to be inserted into the limiting groove backward to limit the annular shell (6); The upper end of the support rod (1) is fixedly connected to a control box (12), a left-right axial guide shaft (13) is rotatably connected inside the control box (12), a guide groove is provided on the guide shaft (13), the guide groove is composed of a spiral groove (14) and a straight groove (15), the right end of the straight groove (15) is connected to the left end of the spiral groove (14), a swing rod (16) is fixedly connected to the outer edge surface of the guide shaft (13), and a free end of the swing rod (16) is fixedly connected to a coaxial guide shaft (13). The arc plate (17) is fixedly connected to a connecting block (18) at the middle of the inner arc surface of the arc plate (17); the upper end surface of the connecting block (18) is a plane; a rectangular frame (19) is slidably connected inside the control box (12); a U-shaped block (20) which can move leftward and rightward and has an opening facing upward is provided inside the control box (12); a guide column (21) inserted into the guide groove is fixedly connected to the upper end of the U-shaped block (20); and the rectangular frame (19) can move up and down as the U-shaped block (20) moves leftward and rightward.

2. The single support wheel for preventing rope from falling according to claim 1, characterized in that: The number of the stoppers (7) is five.

3. The single support wheel for preventing rope from falling according to claim 1, characterized in that: The control box (12) has two front and rear sides at its upper end respectively provided with through slots (25) in the left-right direction and through the upper and lower parts, the free end of the arc plate (17) can extend out of the through slot (25), the upper side wall of the control box (12) has a sliding slot located between the two through slots (25), the upper end of the rectangular frame (19) is slidably connected to the sliding slot, and the upper end of the rectangular frame (19) can extend out of the sliding slot.

4. The single support wheel for preventing rope from falling off according to claim 1, characterized in that: A left-right axial screw rod (26) is rotatably connected in the control box (12); the right end of the screw rod (26) penetrates the control box (12) and is coaxially provided with a rotating handle (27); the screw rod (26) is threadedly connected to the U-shaped block (20); a clearance groove (31) is provided on the lower side of the rectangular frame (19) and is passed through in the vertical and left-right directions; the width of the clearance groove (31) is greater than the width of the U-shaped block (20); and the U-shaped block (20) can pass through the clearance groove (31).

5. The single support wheel for preventing rope from falling off according to claim 1, characterized in that: The front and rear side walls of the rectangular frame (19) are respectively provided with control grooves which are connected inside and outside, and the control grooves are composed of a transverse groove (28) and an inclined groove (29). The inclined groove (29) is in an inclined state with the left side lower than the right side higher, and the right end of the inclined groove (29) is connected with the transverse groove (28). The front and rear sides of the U-shaped block (20) are respectively fixedly connected with sliding columns (30), and the free ends of the sliding columns (30) are inserted into the control grooves on the corresponding sides.

6. The single support wheel for preventing rope from falling off according to claim 5, characterized in that: The length of the transverse groove (28) in the left-right direction is equal to the length of the spiral groove (14) in the left-right direction, and the length of the inclined groove (29) in the left-right direction is equal to the length of the straight groove (15) in the left-right direction.

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