Anti-falling belt pulley

Abstract

The utility model provides an anti-falling belt pulley, which belongs to the technical field of belt pulleys and comprises a belt pulley main body, side plates are symmetrically and rotatably mounted on two sides of the belt pulley main body respectively, a mounting frame is arranged on the surface of the belt pulley main body between the two groups of side plates, and a mounting block is fixedly mounted at the bottom of one side of the mounting frame in an embedded manner. According to the anti-falling belt pulley, by arranging side plates, T-shaped insertion strips, fixed insertion rods and fixed springs, after two groups of shifting rods are pushed and extruded to drive the fixed insertion rods to retract into mounting grooves, mounting frames are inserted between the two groups of side plates, and the T-shaped insertion strips on the two sides of the mounting frames are inserted into corresponding T-shaped insertion grooves until fixed insertion holes correspond to the fixed insertion rods; and a shifting rod is loosened, under the springback effect of a fixing spring, a fixing inserting rod is ejected out of a mounting groove to be inserted into a corresponding fixing inserting hole, and therefore the mounting frame is clamped and fixed between the two sets of side plates, the mounting frame is dismounted and mounted, and the belt is conveniently arranged on the surface of the belt wheel body in a sleeving mode.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to an anti-falling pulley. Background Art

[0002] As a common mechanical transmission element, the pulley has the advantages of being able to mitigate load impact, running smoothly, low noise, low vibration, simple structure, and easy adjustment. When the pulley rotates at high speed, the belt force channel on the pulley surface is easy to fall off from the pulley surface, which may cause equipment damage and casualties.

[0003] The existing anti-falling pulley generally has an anti-falling frame fixedly installed on the pulley surface. The anti-falling frame is wrapped around the pulley surface to cover the belt groove on the pulley surface to prevent the belt from falling out of the belt groove. Since the belt material is blocked, it is inconvenient to wrap the belt and install it on the pulley surface. Therefore, improvement is needed. Utility Model Content

[0004] The utility model provides an anti-falling pulley, which solves the problem in the prior art that the existing anti-falling pulley is generally fixedly installed with an anti-falling frame on the pulley surface, and the anti-falling frame is wrapped around the pulley surface, which makes it inconvenient to wrap the belt and install it on the pulley surface.

[0005] The technical solution of the utility model is achieved as follows: an anti-falling pulley comprises a pulley body, side plates are symmetrically and rotatably installed on both sides of the pulley body, a mounting frame is provided on the surface of the pulley body between the two groups of side plates, a mounting block is inlaid and fixedly installed on the bottom of one side of the mounting frame, mounting grooves are symmetrically provided inside the two sides of the mounting block, a fixed plug rod is slidably installed inside the mounting groove, and one end of the fixed plug rod passes through the mounting groove and extends to the outside of the mounting block, a limiting plate is fixedly installed on the surface of one end of the fixed plug rod located inside the mounting groove, a fixing spring is provided on the surface of the fixed plug rod located inside the mounting groove, and a fixing clamping plate is provided on one side of the mounting block.

[0006] As a further solution of the utility model: a fixing hole is provided at one end of the side plate close to the bottom of one side of the pulley body, and a T-shaped slot is provided on one side of the side plate located at the fixing hole.

[0007] As a further solution of the utility model: T-shaped strips are symmetrically fixedly installed on the bottom of both sides of the mounting frame, and the T-shaped strips correspond to the T-shaped slots, four groups of mounting shafts are fixedly installed at equal angles on the inner wall of the mounting frame, and a clamping roller is rotatably installed on the surface of the mounting shaft, and the clamping roller is in contact with the surface of the pulley body.

[0008] As a further solution of the utility model: a shifting rod is fixedly installed on one end of the fixed insertion rod away from the limiting plate, and a shifting clamping plate is fixedly installed on one end of the shifting rod extending through the mounting slot to the outside of the mounting block.

[0009] As a further solution of the utility model: fixed card slots are symmetrically arranged on both sides of the fixed card plate, and the fixed card slots correspond to the shifting rods, and a fixing bolt is arranged at the central position of the fixed card plate.

[0010] As a further solution of the utility model: a fixing screw hole is provided at a central position between the two groups of mounting grooves on the surface of the mounting block, and the fixing bolt passes through the fixing clamp plate and is connected to the fixing screw hole accordingly.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The anti-falling pulley is provided with side plates, T-shaped insert strips, fixed insert rods and fixed springs. After pushing and squeezing two groups of levers to drive the fixed insert rods to retract into the installation grooves, the mounting frame is inserted between the two groups of side plates, so that the T-shaped insert strips on both sides of the mounting frame are inserted into the corresponding T-shaped slots until the fixed holes correspond to the fixed insert rods. The levers are loosened and the fixed insert rods are pushed out of the installation grooves and inserted into the corresponding fixed holes under the rebound action of the fixed springs, so that the mounting frame is clamped and fixed between the two groups of side plates, so that the mounting frame can be disassembled and installed, and the belt can be conveniently put on the surface of the pulley body.

[0013] 2. The anti-falling pulley is provided with a mounting frame, a clamping roller and a pulley body. When the mounting frame is fixed between two sets of side plates so that the mounting frame covers the surface of the pulley body, four sets of clamping rollers can be closely attached to the surface of the pulley body. When the pulley body rotates, the clamping rollers rotate synchronously on the surface of the pulley body due to the friction force, thereby clamping the belt on the surface of the pulley body and preventing it from falling off at will. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the combined cross-sectional structure of the pulley body and two sets of side plates of the utility model;

[0017] Figure 3 It is a cross-sectional structural schematic diagram of the mounting frame, the pressing roller and the mounting block of the utility model;

[0018] Figure 4 For this utility model Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 5 This is a structural schematic diagram of the fixing clamp plate and the fixing bolts of the utility model;

[0020] In the figure: 1. Pulley body; 2. Side plate; 3. Fixed socket; 4. T-slot; 5. Mounting frame; 6. T-slot; 7. Mounting shaft; 8. Clamping roller; 9. Mounting block; 10. Fixed screw hole; 11. Mounting slot; 12. Fixed plug rod; 13. Limiting plate; 14. Fixed spring; 15. Push rod; 16. Push card plate; 17. Fixed card plate; 18. Fixed card slot; 19. Fixed bolt. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-5 As shown, the utility model provides a technical solution: an anti-falling pulley, comprising a pulley body 1, with side panels 2 symmetrically rotatably mounted on both sides of the pulley body 1, a fixing hole 3 is provided at one end of the side panel 2 close to the bottom of one side of the pulley body 1, and a T-shaped slot 4 is provided on one side of the side panel 2 located at the fixing hole 3. A mounting frame 5 is provided on the surface of the pulley body 1 between the two groups of side panels 2, and T-shaped inserts 6 are symmetrically fixedly mounted on the bottom of both sides of the mounting frame 5, and the T-shaped inserts 6 correspond to the T-shaped slots 4. By providing the T-shaped slots 4 and the T-shaped inserts 6, when the mounting frame 5 is fixed between the two groups of side panels 2, the T-shaped inserts 6 are inserted into the corresponding T-shaped slots 4, ensuring that the mounting frame 5 is stuck between the two groups of side panels 2 without positional displacement;

[0023] Four sets of mounting shafts 7 are fixedly installed at equal angles on the inner wall of the mounting frame 5, and a clamping roller 8 is rotatably installed on the surface of the mounting shaft 7, and the clamping roller 8 is in contact with the surface of the pulley body 1. Because the clamping roller 8 is provided, when the mounting frame 5 is covered on the surface of the pulley body 1, the clamping roller 8 is in contact with the surface of the pulley body 1, ensuring that the belt will not fall off at will when sliding on the surface of the pulley body 1.

[0024] A mounting block 9 is inlaid and fixedly installed at the bottom of one side of the mounting frame 5, and mounting grooves 11 are symmetrically arranged inside the two sides of the mounting block 9. A fixed plug rod 12 is slidably installed inside the mounting groove 11, and one end of the fixed plug rod 12 passes through the mounting groove 11 and extends to the outside of the mounting block 9. A limit plate 13 is fixedly installed on the surface of one end of the fixed plug rod 12 located inside the mounting groove 11, and a fixed spring 14 is arranged on the surface of the fixed plug rod 12 located inside the mounting groove 11. By providing the fixed spring 14, the limit plate 13 is pushed toward one side of the mounting groove 11 under the rebound action of the fixed spring 14, so that the fixed plug rod 12 can be pushed out of the mounting groove 11 and inserted into the corresponding fixed plug hole 3, so that the mounting frame 5 is clamped and fixed between the two sets of side panels 2;

[0025] A lever 15 is fixedly installed on one end of the fixed plug rod 12 away from the limit plate 13, and a toggle card plate 16 is fixedly installed on one end of the toggle card plate 15 extending through the mounting groove 11 to the outside of the mounting block 9. Because the toggle card plate 16 is provided, when the fixed card plate 17 is clamped on the surface of the two groups of toggle cards 15, the toggle card plate 16 can clamp and fix the fixed card plate 17 to ensure that the fixed card plate 17 is clamped on the surface of the toggle card plate 15 and will not detach at will.

[0026] A fixed card plate 17 is provided on one side of the mounting block 9. Fixed card slots 18 are symmetrically provided on both sides of the fixed card plate 17, and the fixed card slots 18 correspond to the lever 15. Because the lever 15 and the fixed card plate 17 are provided, the lever 15 is pushed to drive the fixed plug rod 12 to retract into the mounting slot 11, so as to facilitate the insertion of the mounting frame 5 between the two sets of side plates 2. After the mounting frame 5 is fixed between the two sets of side plates 2, the fixed card plate 17 is clamped on the surfaces of the two sets of levers 15 to clamp and fix the lever 15, ensuring that the lever 15 will not drive the fixed plug rod 12 to slide freely inside the mounting slot 11;

[0027] A fixing bolt 19 is provided at the central position of the fixing clamp 17. A fixing screw hole 10 is provided at the central position between the two groups of mounting grooves 11 on the surface of the mounting block 9. The fixing bolt 19 passes through the fixing clamp 17 and is connected to the fixing screw hole 10 accordingly. By providing the fixing bolt 19, after the fixing clamp 17 is clamped on the surfaces of the two groups of levers 15, the fixing bolt 19 is tightened to pass through the fixing clamp 17 and inserted into the fixing screw hole 10, so that the fixing clamp 17 is clamped and fixed on the surface of the mounting block 9, so that the fixing clamp 17 can clamp and fix the lever 15.

[0028] The working principle of the utility model is:

[0029] Loosen the fixing bolts 19 to remove the fixing card plate 17 from the surface of the mounting block 9, push and squeeze the two sets of levers 15 to move closer to each other, so that the fixing rods 12 can be retracted into the corresponding mounting grooves 11, and insert the T-shaped strips 6 on both sides of the mounting frame 5 into the corresponding T-shaped slots 4 until the T-shaped strips 6 are completely inserted into the T-shaped slots 4, so that the fixing rods 12 correspond to the fixing holes 3, and loosen the levers 15. Under the rebound action of the fixing springs 14, the fixing rods 12 are pushed out of the mounting grooves 11 and inserted into the corresponding fixing holes 3. The mounting frame 5 is clamped and fixed inside the jack 3 between the two sets of side plates 2, so that the mounting frame 5 covers the surface of the pulley body 1, ensuring that the clamping roller 8 can be close to the surface of the pulley body 1, and then the fixed grooves 18 on both sides of the fixed clamping plate 17 are clamped on the corresponding surfaces of the lever 15, and the fixing bolts 19 are tightened to fix the fixed clamping plate 17 with the mounting block 9, so that the fixed clamping plate 17 can clamp and fix the lever 15, ensuring that the mounting frame 5 is clamped between the two sets of side plates 2 and will not be separated at will.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-falling pulley, comprising a pulley body (1), characterized in that: Side plates (2) are symmetrically mounted on both sides of the pulley body (1), and a mounting frame (5) is provided between the two sets of side plates (2) on the surface of the pulley body (1). A mounting block (9) is fixedly mounted on the bottom of one side of the mounting frame (5). Mounting grooves (11) are symmetrically arranged inside the two sides of the mounting block (9). A fixed plug rod (12) is slidably mounted inside the mounting groove (11), and one end of the fixed plug rod (12) passes through the mounting groove (11) and extends to the outside of the mounting block (9). A limiting plate (13) is fixedly mounted on the surface of one end of the fixed plug rod (12) located inside the mounting groove (11). A fixing spring (14) is provided on the surface of the fixed plug rod (12) located inside the mounting groove (11), and a fixing clamping plate (17) is provided on one side of the mounting block (9).

2. The anti-falling pulley according to claim 1, characterized in that: A fixing hole (3) is provided at one end of the bottom of the side plate (2) close to one side of the pulley body (1), and a T-shaped slot (4) is provided on one side of the side plate (2) located at the fixing hole (3).

3. The anti-falling pulley according to claim 2, characterized in that: T-shaped inserting strips (6) are symmetrically fixedly installed at the bottom of both sides of the mounting frame (5), and the T-shaped inserting strips (6) correspond to the T-shaped slots (4). Four groups of mounting shafts (7) are fixedly installed at equal angles on the inner wall of the mounting frame (5), and a pressing roller (8) is rotatably installed on the surface of the mounting shaft (7), and the pressing roller (8) is in contact with the surface of the pulley body (1).

4. The anti-falling pulley according to claim 1, characterized in that: A shifting rod (15) is fixedly mounted on one end of the fixed insertion rod (12) away from the limiting plate (13), and a shifting clamping plate (16) is fixedly mounted on one end of the shifting rod (15) extending through the mounting groove (11) to the outside of the mounting block (9).

5. The anti-falling pulley according to claim 4, characterized in that: The fixed card plate (17) is symmetrically provided with fixed card slots (18) on both sides, and the fixed card slots (18) correspond to the shifting rod (15). A fixing bolt (19) is provided at the central position of the fixed card plate (17).

6. The anti-falling pulley according to claim 5, characterized in that: A fixing screw hole (10) is provided on the surface of the mounting block (9) at a central position between the two groups of mounting grooves (11), and the fixing bolt (19) passes through the fixing clamping plate (17) and is correspondingly connected to the fixing screw hole (10).

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