Detachable bracket capable of preventing pulley from falling off

Abstract

The utility model relates to the technical field of pulley supports, and discloses an anti-drop pulley detachable support which comprises a fixing plate, the lower side of the left end of the fixing plate is fixedly connected with a back plate, the lower end of the back plate is fixedly connected with a fixing shaft, and the outer portion of the fixing shaft is rotationally connected with a rotating sleeve. Limiting rings are fixedly connected to the positions, corresponding to the left side and the right side of the rotating sleeve, of the outer portion of the fixing shaft, a pulley body is arranged outside the rotating sleeve, T-shaped plates are fixedly connected to the front end and the rear end of the lower side of the fixing plate, and the outer portions of the T-shaped plates are jointly and slidably connected with a movable plate. According to the utility model, the movable plate moves rightwards to separate the lower end of the movable plate from the fixed shaft, so that the pulley main body can be detached and is convenient to replace and maintain, the pulley main body can rotate outside the rotating sleeve, the friction resistance of the pulley main body during rotation can be reduced, and the rotating ring can rotate at the lower ends of the back plate and the movable plate; and friction between the pulley and the bracket can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pulley support technical field especially relates to a kind of detachable support of anti-slip pulley. BACKGROUND

[0002] Pulley is a periphery with groove, can rotate around the axle small wheel. By the disc that can rotate around the central axis with groove and the flexible cable (rope, adhesive tape, steel cable, chain etc.) of striding disc are composed of the simple machine that can rotate around the central axis and be called pulley, pulley usually accompanies pulley support and is used, pulley is installed and fixed by pulley support.

[0003] In prior art, pulley and pulley between structure are relatively simple, convenient to use;Pulley and support are generally fixed by bolt and nut, belong to detachable connection, this mode can lead to bolt and nut loosening in long time use process, there is security risk, and the friction between pulley and bolt is larger, another is fixed by fixed bolt welding, this mode is connected stably, but pulley cannot be disassembled. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art, and provides a kind of detachable support of anti-slip pulley, pulley can be disassembled and replaced, and the problem that pulley loosens during use can be avoided.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of detachable support of anti-slip pulley, including fixed plate, the left end lower side of the fixed plate is fixedly connected with backplate, the lower end of the backplate is fixedly connected with fixed shaft, the outer portion of the fixed shaft is rotatably connected with rotating sleeve, the left and right sides of the outer portion of the fixed shaft corresponding rotating sleeve are all fixedly connected with limit ring, the outer portion of the rotating sleeve is provided with pulley main body, the lower side of the fixed plate is fixedly connected with T-shaped plate at front and back two ends, the outer portion of the T-shaped plate is slidably connected with movable plate, the right end of the fixed shaft is arranged at the lower end of movable plate, the lower side of the fixed plate is provided with the drive assembly for driving movable plate left and right movement in middle part.

[0007] Further, the drive assembly includes the U-shaped plate of fixed plate right end lower side fixed connection, the middle part of the U-shaped plate is rotatably connected with screw rod, the outer wall of the screw rod is threadedly connected in the upper end of movable plate, the left end outer portion of the screw rod is rotatably connected on the upper end of backplate.

[0008] Furthermore, the drive assembly also includes side plates fixedly connected to the front and rear sides of the U-shaped plate, a worm gear rotatably connected to the middle of the side plates, a worm wheel meshing with the outer side of the worm gear, the inner wall of the worm wheel being fixedly connected to the outside of the right end of the lead screw, and rotating handles for driving the worm gear to rotate being fixedly connected to both the front and rear ends of the worm gear.

[0009] Furthermore, a swivel ring is rotatably connected to the lower end of both the back plate and the movable plate on opposite sides to reduce friction between the pulley body and the back plate and the movable plate.

[0010] Furthermore, a movable opening is provided at the upper center of the back plate, and a slider is movably connected inside the movable opening.

[0011] Furthermore, a central shaft is fixedly connected to the middle of the slider, and an auxiliary wheel is rotatably connected to the right end of the central shaft.

[0012] Furthermore, the left end of the slider is threaded with a fastener to secure the slider after adjustment.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by moving the movable plate to the right, the lower end of the movable plate is separated from the fixed shaft, leaving a gap sufficient for the pulley body to pass through. This allows for the disassembly of the pulley body, facilitating replacement and maintenance. The operation is simple and convenient. The auxiliary wheel restricts the slings and other components on the pulley body from the upper side, improving the stability of the movement.

[0015] 2. In this utility model, the rotating sleeve can rotate outside the fixed shaft, and the pulley body can rotate outside the rotating sleeve, which can reduce the frictional resistance of the pulley body rotation and reduce the wear of the pulley. The rotating ring can rotate at the lower end of the back plate and the movable plate, which can prevent the pulley body from contacting the back plate and the movable plate, and prevent friction between the pulley body and the back plate and the movable plate when the pulley body rotates, thus reducing the wear of the pulley body. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of a detachable bracket with anti-detachment pulley proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of a rotating sleeve for a detachable bracket with an anti-detachment pulley proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of a U-shaped plate with a detachable bracket for preventing pulley slippage proposed in this utility model;

[0019] Figure 4This is a schematic diagram of a slider with a detachable bracket that prevents pulley slippage, as proposed in this utility model.

[0020] Legend:

[0021] 1. Fixed plate; 2. Back plate; 3. Fixed shaft; 4. Rotating sleeve; 5. Limiting ring; 6. T-shaped plate; 7. Movable plate; 8. Rotary ring; 9. Pulley body; 10. U-shaped plate; 11. Lead screw; 12. Worm gear; 13. Side plate; 14. Worm; 15. Rotating handle; 16. Movable opening; 17. Slider; 18. Central shaft; 19. Auxiliary wheel; 20. Fastener. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a detachable pulley bracket that prevents slippage, comprising a fixed plate 1, a back plate 2 fixedly connected to the lower left side of the fixed plate 1, a fixed shaft 3 fixedly connected to the lower end of the back plate 2, a rotating sleeve 4 rotatably connected to the outside of the fixed shaft 3, limit rings 5 ​​fixedly connected to the left and right sides of the rotating sleeve 4 corresponding to the outside of the fixed shaft 3, a pulley body 9 provided outside the rotating sleeve 4, T-shaped plates 6 fixedly connected to the front and rear ends of the lower side of the fixed plate 1, a movable plate 7 slidably connected to the outside of the T-shaped plates 6, the right end of the fixed shaft 3 passing through the lower end of the movable plate 7, and rotating rings 8 rotatably connected to the opposite sides of the lower ends of the back plate 2 and the movable plate 7 to reduce friction between the pulley body 9 and the back plate 2 and the movable plate 7.

[0024] When installing and removing the pulley body 9, the movable plate 7 moves left and right on the T-shaped plate 6. When the movable plate 7 moves to the right, a gap is formed between the movable plate 7 and the fixed shaft 3, allowing the pulley body 9 to pass through. The pulley body 9 is then removed from or installed on the rotating sleeve 4. Subsequently, the movable plate 7 moves to the left, and the right end of the fixed shaft 3 is inserted into the lower end of the movable plate 7. The installed pulley body 9 can rotate through the rotating sleeve 4, and the pulley body 9 can also rotate outside the rotating sleeve 4. Through this double rotation, the flexibility of the pulley body 9's rotation is reduced, thereby improving the pulley's performance. The left and right ends of the pulley body 9 contact the rotating ring 8, which avoids contact with the back plate 2 and the movable plate 7. During rotation, this reduces wear on the left and right sides of the pulley body 9 and avoids frictional resistance, thus improving the flexibility of the pulley's rotation.

[0025] Reference Figure 1 and Figure 4 The upper middle part of the back plate 2 has a movable opening 16. The movable opening 16 is movably connected to a slider 17. The middle part of the slider 17 is fixedly connected to a central shaft 18. The right end of the central shaft 18 is rotatably connected to an auxiliary wheel 19. The left end of the slider 17 is threadedly connected to a fastener 20 for fixing the slider 17 after adjustment.

[0026] The slider 17 can slide up and down inside the movable opening 16, driving the auxiliary wheel 19 to move up and down. The auxiliary wheel 19 restricts the rope wrapped around the pulley body 9 from above, preventing the rope from deviating and improving stability. The fastener 20 is used to fix the slider 17.

[0027] Reference Figure 1 and Figure 3 A U-shaped plate 10 is fixedly connected to the lower right side of the fixed plate 1. A lead screw 11 is rotatably connected to the middle of the U-shaped plate 10. The outer wall of the lead screw 11 is threaded to the upper end of the movable plate 7. The left end of the lead screw 11 is rotatably connected to the upper end of the back plate 2. Side plates 13 are fixedly connected to both the front and rear sides of the U-shaped plate 10. A worm gear 14 is rotatably connected to the middle of the side plates 13. A worm wheel 12 is meshed with the outer side of the worm gear 14. The inner wall of the worm wheel 12 is fixedly connected to the outer right end of the lead screw 11. Rotating handles 15 for driving the worm gear 14 to rotate are fixedly connected to both the front and rear ends of the worm gear 14.

[0028] The rotating handle 15 is used to drive the worm 14 to rotate. The rotating worm 14 can cooperate with the worm wheel 12 to drive the lead screw 11 to rotate, which is used to move the movable plate 7 left and right, and to install and disassemble the pulley body 9. Due to the characteristics of the worm 14 and the worm wheel 12, only the worm 14 can drive the worm wheel 12 to rotate, thereby ensuring the stability of the movable plate 7 after it moves and avoiding the problem of unstable connection during the use of the pulley.

[0029] Working principle: The pulley and bracket are installed and fixed by the fixed plate 1. The rotating handle 15 drives the worm 14 to rotate. The rotating worm 14 cooperates with the worm wheel 12 to drive the lead screw 11 to rotate. The rotating lead screw 11 can drive the movable plate 7 to move left and right. The movable plate 7 moves to the right and separates from the right end of the fixed shaft 3. At this time, the pulley body 9 can be removed from the outside of the rotating sleeve 4 for replacement and maintenance. The pulley body 9 is installed outside the rotating sleeve 4. The pulley body 9 can rotate outside the rotating sleeve 4. The pulley body 9 and the rotating sleeve 4 can rotate outside the fixed shaft 3. The slider 17 moves up and down inside the movable opening 16, driving the auxiliary wheel 19 to press on the upper side of the pulley body 9, restricting the rope wrapped around the pulley body 9 and preventing the rope from deviating. The slider 17 can be fixed after movement by rotating the fastener 20.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A detachable support for a non-slip pulley, characterized in that, The utility model provides a kind of fixed plate (1), the left end lower side of the fixed plate (1) is fixedly connected with back plate (2), the lower end of the back plate (2) is fixedly connected with fixed shaft (3), the outside rotationally connected with rotating sleeve (4) of the fixed shaft (3), the outside of the fixed shaft (3) is fixedly connected with limit ring (5) corresponding rotating sleeve (4) left and right sides, pulley main body (9) is provided outside the rotating sleeve (4), the lower side of the fixed plate (1) is fixedly connected with T-shaped plate (6) front and back two ends, the outside of the T-shaped plate (6) is slidably connected with movable plate (7), the right end of the fixed shaft (3) is arranged in the lower end of movable plate (7), the lower side of the fixed plate (1) is provided with drive assembly for driving movable plate (7) left and right movement middle part.

2. The releasable pulley mount of claim 1, wherein: The drive assembly includes the U-shaped plate (10) of the right end lower side of the fixed plate (1) fixed connection, the middle part of the U-shaped plate (10) is rotatably connected with screw rod (11), the outer wall of the screw rod (11) is threadedly connected in the upper end of movable plate (7), the left end of the screw rod (11) is rotatably connected on the upper end of back plate (2) outside.

3. The releasable pulley mount of claim 2, wherein: The drive assembly further includes the side plate (13) of the front and back two sides of the U-shaped plate (10) fixed connection, the middle part of the side plate (13) is rotatably connected with worm (14), the outer side of the worm (14) is meshingly connected with worm wheel (12), the inner wall of the worm wheel (12) is fixedly connected in the right end of the screw rod (11) outside, the front and back two ends of the worm (14) are fixedly connected with rotating handle (15) for driving worm (14) rotation.

4. The releasable pulley mount of claim 1, wherein: The lower end of the back plate (2) and movable plate (7) opposite side is rotatably connected with swivel ring (8), for reducing the friction between pulley main body (9) and back plate (2), movable plate (7).

5. The releasable pulley mount of claim 1, wherein: The upper end of the back plate (2) middle part is provided with movable mouth (16), the inside of the movable mouth (16) is movably connected with sliding block (17).

6. A releasable pulley mountable support according to claim 5 wherein: The middle part of the sliding block (17) is fixedly connected with middle shaft (18), the right end of the middle shaft (18) is rotatably connected with auxiliary wheel (19) outside.

7. The releasable pulley mount of claim 5, wherein: The left end of the sliding block (17) is threadedly connected with fastener (20), for fixing sliding block (17) after adjustment.

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