Universal pulley

Abstract

The utility model relates to the technical field of tackles, and discloses a universal tackle which comprises a support, rollers are installed in the support, three connecting blocks are fixedly connected to the surface of the support and evenly distributed on the surface of the support, inserting rods are inserted into the connecting blocks, and the inserting rods are connected with the rollers. One end of the inserting rod is in threaded connection with a first nut, two positioning seats are slidably connected to the surface of the inserting rod, and first clamping plates are fixedly connected to the bottoms of the positioning seats. According to the universal tackle, the connecting block is arranged at the bottom of the support, so that a worker can fix the positioning seat at the bottom of the support through threaded connection of the inserting rod and the first nut, and then the first clamping plate abuts against a fixable object; and through threaded connection of a second nut and a threaded rod, the second nut is screwed upwards to push a second clamping plate to move upwards, so that the second clamping plate and the first clamping plate clamp an object, and a worker can conveniently fix the support to a long plate or a long rod for use.

Description

Technical Field

[0001] The utility model relates to the technical field of pulleys, in particular to a universal pulley. Background Art

[0002] A pulley is a small wheel with grooves around it that can rotate around an axis. It is composed of a grooved disc that can rotate around a central axis and a flexible rope, tape, steel cable, chain, etc. that crosses the disc. A simple machine that can rotate around a central axis is called a pulley.

[0003] A Chinese patent discloses a wire-laying pulley (authorization announcement number CN208690848U). This patented technology can solve the problem that when the number of sub-conductors is odd during the current tension wire stringing construction process, the wire-laying pulley with even wheels needs to be modified, thereby saving costs and bringing many conveniences to the tension wire stringing construction process.

[0004] With respect to the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: in the actual use of the pulley, the pulley is usually fixed at a high place for use, but the existing pulley does not have a fixing mechanism, and the pulley cannot be quickly installed and disassembled to change the place of use, which reduces the practicality of the pulley and brings inconvenience to the user. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the prior art has the disadvantage that the pulley cannot be quickly fixed and installed for use, so we propose a universal pulley.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a universal pulley, comprising a bracket, a roller is installed inside the bracket, a connecting block is fixedly connected to the surface of the bracket, the number of the connecting blocks is three and they are evenly distributed on the surface of the bracket, an insertion rod is inserted into the inside of the connecting block, one end of the insertion rod is threadedly connected to a first nut, the surface of the insertion rod is slidably connected to two positioning seats, the bottom of the positioning seat is fixedly connected to a first splint, both sides of the first splint are provided with sliding grooves, the inner wall of the sliding groove is slidably connected to a sliding rod, the bottom of the sliding rod is fixedly connected to a threaded rod, the surface of the threaded rod is slidably connected to a second splint, and the bottom of the threaded rod is threadedly connected to a second nut.

[0007] Preferably, a gasket is slidably connected to the surface of the threaded rod, and the gasket is made of rubber.

[0008] Preferably, one end of the insertion rod is fixedly connected to a steel wire, and the other end of the steel wire is fixedly connected to a positioning seat.

[0009] Preferably, the surface of the slide rod is matched with the inner diameter of the slide groove.

[0010] Preferably, the top of the bracket is fixedly connected to a round rod, the surface of the round rod is rotatably connected to two first extension plates, the opposite surfaces of the first extension plates are fixedly connected to a clamping block, the top of the clamping block is fixedly connected to a first spring, the top of the first spring is fixedly connected to a push plate, the inside of the clamping block is slidably connected to a limit rod, the top of the limit rod is interspersed with a latch, the top of the first extension plate is fixedly connected to a rocker arm, the top of the bracket is fixedly connected to a second extension plate, the top of the second extension plate is interspersed with a connecting shaft, one end of the connecting shaft is interspersed with a headless threaded nail, and the surface of the connecting shaft is slidably connected to a connecting seat.

[0011] Preferably, a second spring is sleeved on the surface of the round rod, one end of the second spring is fixedly connected to the bottom of the clamping block, and the other end of the second spring is fixedly connected to the first extension plate.

[0012] Technical effects and advantages of the utility model:

[0013] In the utility model, a connecting block is provided at the bottom of the bracket so that a worker can fix the positioning seat to the bottom of the bracket through a threaded connection between the insertion rod and the first nut, and then abut the first clamping plate against a fixable object, and screw the second nut upward through a threaded connection between the second nut and the threaded rod to push the second clamping plate to move upward, so that the second clamping plate and the first clamping plate clamp the object, thereby making it easier for the worker to fix the bracket on a long board or a long pole for use.

[0014] In the utility model, a worker pulls the limit rod downward to a specified position and makes the latch pin push the push plate downward to drive the first spring to store force, and then draws the headless threaded nail out of the connecting shaft. At this time, the top of the limit rod no longer restrains the connecting shaft, so that the connecting shaft can be drawn out from the headless threaded nail and the rocker arm, and then the round rod is connected to the card block through rotation, so that the card block can be rotated and opened, which makes it easier for the worker to disassemble and repair the roller or install the roller on the line body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 It is a vertical cross-sectional view of the structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A partial enlarged view of the middle A;

[0018] Figure 4 For this utility model Figure 2 A partial enlarged view of point B in the middle;

[0019] Figure 5 This is a cross-sectional view of the internal structure of the utility model;

[0020] Figure 6 For this utility model Figure 5 A partial enlarged view of point C in the middle;

[0021] Figure 7 It is a sectional view of the disassembly structure of the utility model;

[0022] Figure 8 For this utility model Figure 7 A partial enlarged view of point D in the middle.

[0023] Legend: 1. Bracket; 2. Roller; 3. Connecting block; 4. Insert rod; 5. First nut; 6. Positioning seat; 7. First clamping plate; 8. Slide groove; 9. Slide rod; 10. Threaded rod; 11. Second clamping plate; 12. Second nut; 13. Washer; 14. Steel wire; 15. Round rod; 16. First extension plate; 17. Block; 18. First spring; 19. Push plate; 20. Limit rod; 21. Latch; 22. Rocker arm; 23. Second extension plate; 24. Connecting shaft; 25. Headless threaded nail; 26. Connecting seat; 27. Second spring. DETAILED DESCRIPTION

[0024] The present invention will now be further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0025] Reference Figure 1-Figure 5 As shown, the utility model provides a technical solution: a universal pulley, including a bracket 1, a roller 2 is installed inside the bracket 1, a connecting block 3 is fixedly connected to the surface of the bracket 1, the number of the connecting blocks 3 is three and they are evenly distributed on the surface of the bracket 1, an insert rod 4 is inserted inside the connecting block 3, one end of the insert rod 4 is threadedly connected to a first nut 5, the surface of the insert rod 4 is slidably connected to two positioning seats 6, the bottom of the positioning seat 6 is fixedly connected to a first splint 7, both sides of the first splint 7 are provided with a slide groove 8, the inner wall of the slide groove 8 is slidably connected to a slide rod 9, the bottom of the slide rod 9 is fixedly connected to a threaded rod 10, the threaded rod The surface of 10 is slidably connected with a second clamping plate 11, and the bottom of the threaded rod 10 is threadedly connected with a second nut 12. Through the connecting block 3 set at the bottom of the bracket 1, the staff can fix the positioning seat 6 to the bottom of the bracket 1 through the threaded connection of the insertion rod 4 and the first nut 5, and then by abutting the first clamping plate 7 on the fixable object, the second nut 12 is screwed upward through the threaded connection between the second nut 12 and the threaded rod 10 to push the second clamping plate 11 to move upward, so that the second clamping plate 11 and the first clamping plate 7 clamp the object, which makes it easier for the staff to fix the bracket 1 on a long board or a long rod for use.

[0026] Reference Figure 4 As shown, in this embodiment: the surface of the threaded rod 10 is slidably connected with a gasket 13, and the gasket 13 is made of rubber. By arranging the gasket 13 made of rubber material on the top of the second nut 12, after the second nut 12 is tightened, the high friction property unique to rubber can prevent the second nut 12 from loosening, causing the sliding rod 9 to slide in the sliding groove 8, resulting in the device shaking and not being firmly fixed.

[0027] Reference Figure 1 and Figure 2 As shown, in the present embodiment: one end of the insertion rod 4 is fixedly connected with a steel wire 14, and the other end of the steel wire 14 is fixedly connected to the positioning seat 6. By arranging the steel wire 14 at one end of the insertion rod 4, the steel wire 14 fixes the insertion rod 4 to prevent the staff from removing the first nut 5 and causing the insertion rod 4 to be lost, thereby fixing the position of the insertion rod 4 for hanging and storage.

[0028] Reference Figure 2 and Figure 3 As shown, in this embodiment: the surface of the slide rod 9 is adapted to the inner diameter of the slide groove 8. The design that the surface of the slide rod 9 is adapted to the inner wall size of the slide groove 8 makes the slide rod 9 slide more smoothly in the inner wall of the slide groove 8, preventing the slide rod 9 from shaking in the inner wall of the slide groove 8 after the second nut 12 and the threaded rod 10 are tightened, causing the device to be unstable.

[0029] Reference Figure 5-Figure 8 As shown, in this embodiment: the top of the bracket 1 is fixedly connected with a round rod 15, the surface of the round rod 15 is rotatably connected with two first extension plates 16, the opposite surface of the first extension plate 16 is fixedly connected with a clamping block 17, the top of the clamping block 17 is fixedly connected with a first spring 18, the top of the first spring 18 is fixedly connected with a push plate 19, the inner sliding connection of the clamping block 17 is connected with a limit rod 20, the top of the limit rod 20 is connected with a latch 21, the top of the first extension plate 16 is fixedly connected with a rocker arm 22, the top of the bracket 1 is fixedly connected with a second extension plate 23, the top of the second extension plate 23 is connected with a connecting shaft 24, one end of the connecting shaft 24 is connected with a There is a headless threaded nail 25, and the surface of the connecting shaft 24 is slidably connected with a connecting seat 26. The staff pulls the limit rod 20 downward to the specified position and makes the pin 21 push the push plate 19 downward to drive the first spring 18 to store force, and then the headless threaded nail 25 is pulled out from the connecting shaft 24. At this time, the top of the limit rod 20 no longer restrains the connecting shaft 24, so that the connecting shaft 24 can be pulled out from the headless threaded nail 25 and the rocker arm 22, and then the round rod 15 is connected with the block 17 through rotation, so that the block 17 can be rotated, and the block 17 can be opened, which is more convenient for the staff to disassemble and repair the roller 2, or install the roller 2 on the line body.

[0030] Reference Figure 6 As shown, in the present embodiment: a second spring 27 is sleeved on the surface of the round rod 15, one end of the second spring 27 is fixedly connected to the bottom of the block 17, and the other end of the block 17 is fixedly connected to the first extension plate 16. When the staff rotates the first extension plate 16 outward, the block 17 moves with the first extension plate 16 to drive the second spring 27 to store force. When the staff releases the first extension plate 16 and releases the force generated by the second spring 27, the second spring 27 rebounds to push the first extension plate 16 to reset, thereby closing the first extension plate 16 to facilitate the staff to use the device.

[0031] The working principle of the utility model is as follows: by setting the connection block 3 at the bottom of the bracket 1, the staff can fix the positioning seat 6 to the bottom of the bracket 1 through the threaded connection between the insertion rod 4 and the first nut 5, and then by abutting the first clamping plate 7 on the fixable object, the second nut 12 is screwed upward through the threaded connection between the second nut 12 and the threaded rod 10 to push the second clamping plate 11 to move upward, so that the second clamping plate 11 and the first clamping plate 7 clamp the object, so that it is more convenient for the staff to fix the bracket 1 on the long board or long pole for use, and by screwing the second nut 12 A rubber gasket 13 is provided on the top, so that after the second nut 12 is tightened, the high friction characteristics of rubber can prevent the second nut 12 from loosening, causing the slide bar 9 to slide in the slide groove 8, resulting in the device shaking and not being firmly fixed. A steel wire 14 is provided at one end of the insertion rod 4, so that the steel wire 14 fixes the insertion rod 4 to prevent the staff from losing the insertion rod 4 after removing the first nut 5, thereby fixing the position of the insertion rod 4 for hanging and storage. The surface of the slide rod 9 is designed to be adapted to the inner wall size of the slide groove 8, so that the slide rod 9 can be firmly fixed in the slide groove. 8, so that the sliding rod 9 can slide more smoothly in the inner wall of the slide groove 8 after the second nut 12 and the threaded rod 10 are tightened, so as to prevent the sliding rod 9 from shaking in the inner wall of the slide groove 8, causing the device to be unstable. The staff pulls the limit rod 20 downward to the specified position and makes the latch 21 push the push plate 19 downward to drive the first spring 18 to store force, and then the headless threaded nail 25 is pulled out from the connecting shaft 24. At this time, the top of the limit rod 20 is no longer bound to the connecting shaft 24, so that the connecting shaft 24 can be pulled out from the headless threaded nail 25 and the rocker arm 22, and then the round rod 15 and the block 17 are connected by rotation. When the staff rotates the first extension plate 16 outward, the block 17 moves with the first extension plate 16 to drive the second spring 27 to store force. When the staff releases the first extension plate 16 and releases the force generated by the second spring 27, the second spring 27 rebounds to push the first extension plate 16 to reset, thereby closing the first extension plate 16, so that the staff can use the device.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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. A universal pulley, comprising a bracket (1), characterized in that: A roller (2) is installed inside the bracket (1), and a connecting block (3) is fixedly connected to the surface of the bracket (1). The number of the connecting blocks (3) is three and they are evenly distributed on the surface of the bracket (1). An insertion rod (4) is inserted inside the connection block (3), and one end of the insertion rod (4) is threadedly connected to a first nut (5). The surface of the insertion rod (4) is slidably connected to two positioning seats (6), and the bottom of the positioning seat (6) is fixedly connected to a first clamping plate (7), and both sides of the first clamping plate (7) are provided with sliding grooves (8). The inner wall of the sliding groove (8) is slidably connected to a sliding rod (9), and the bottom of the sliding rod (9) is fixedly connected to a threaded rod (10), and the surface of the threaded rod (10) is slidably connected to a second clamping plate (11), and the bottom of the threaded rod (10) is threadedly connected to a second nut (12).

2. A universal pulley according to claim 1, characterized in that: A gasket (13) is slidably connected to the surface of the threaded rod (10), and the gasket (13) is made of rubber.

3. A universal pulley according to claim 1, characterized in that: One end of the insertion rod (4) is fixedly connected to a steel wire (14), and the other end of the steel wire (14) is fixedly connected to a positioning seat (6).

4. A universal pulley according to claim 1, characterized in that: The surface of the slide rod (9) is adapted to the inner diameter of the slide groove (8).

5. The universal pulley according to claim 1, characterized in that: The top of the bracket (1) is fixedly connected to a round rod (15), the surface of the round rod (15) is rotatably connected to two first extension plates (16), the opposite surface of the first extension plate (16) is fixedly connected to a clamping block (17), the top of the clamping block (17) is fixedly connected to a first spring (18), the top of the first spring (18) is fixedly connected to a push plate (19), the inside of the clamping block (17) is slidably connected to a limit rod (20), the top of the limit rod (20) is inserted and connected with a latch pin (21), the top of the first extension plate (16) is fixedly connected to a rocker arm (22), the top of the bracket (1) is fixedly connected to a second extension plate (23), the top of the second extension plate (23) is inserted and connected to a connecting shaft (24), one end of the connecting shaft (24) is inserted and connected to a headless screw nail (25), and the surface of the connecting shaft (24) is slidably connected to a connecting seat (26).

6. A universal pulley according to claim 5, characterized in that: A second spring (27) is sleeved on the surface of the round rod (15), one end of the second spring (27) is fixedly connected to the bottom of the clamping block (17), and the other end of the second spring (27) is fixedly connected to the first extension plate (16).

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