Telescopic backstop

Abstract

The utility model discloses a telescopic backstop which comprises a backstop body, supports are fixedly assembled on the two sides of the backstop body, through holes are formed in the supports, and side plates are movably inserted into the through holes. The telescopic moving cylinders are arranged on the two sides of the backstop body, the side plates and the supports are matched, the side plates can move on the supports, the positions of the cylinders are adjusted, the positions of the side plates on the supports are fixed through bolts, the backstop device is suitable for different use scenes, the acting force on a rotating shaft of equipment can be increased, and the service life of the backstop device is prolonged. When an accident occurs, the rotating axial force of the rotating shaft is too large, the air cylinders on the two sides are started in time, the air cylinders rapidly push the ejector blocks to be attached to the rotating shaft, the grooves of the ejector blocks enable the ejector blocks to be better attached to the rotating shaft, the purpose of auxiliary sudden stop is achieved, equipment is affected, and the situation that the temperature of the rotating shaft is too high and transmitted to conveyor equipment to cause damage to the equipment is avoided. And the safety performance is further enhanced while the flexible performance is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of backstops, and specifically relates to a telescopic backstop. Background Art

[0002] In order to prevent the inclined belt conveyor from reversing or sliding when it stops with load, after calculating the braking torque, a check or braking device is added depending on the specific situation. This roller check is suitable for the head roller, which is driven by a reducer, has a large power and a large roller diameter. It is widely used in reducer matching, coking plants and transportation machinery, conveyors, elevators, electric rollers and other mechanical equipment that require check requirements. Although the check can prevent reversing or sliding, due to the different applicable equipment, the contact area with the rotating shaft on the equipment is limited, which leads to limited force acting on the rotating shaft of the equipment, making it easy to fail to stop urgently, which increases some safety hazards. Therefore, this technical solution proposes a retractable check. Utility Model Content

[0003] The purpose of the utility model is to provide a retractable backstop to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a retractable check valve, comprising a check valve body, both sides of the check valve body are fixedly equipped with supports, the supports are provided with through holes, side panels are movably inserted in the through holes, the sides of the supports are fixedly equipped with bolts, the ends of the bolts are tightly fitted with the side panels, one end of the cylinder is fixedly equipped on the side where the two side panels are close to each other, the other end of the cylinder is fixedly equipped with a top block, the surface of the top block is provided with a groove, and a cooling structure is provided on the front top of the check valve body.

[0005] Preferably, the cooling structure includes a top plate, a water tank is movably inserted into the surface of the top plate, a frame is fixedly installed on the top of the outer wall of the water tank, the frame is located on the water tank, a box cover is buckled on the bottom end of the water tank, and a support plate is rotatably installed on one side of the cylinder near the top block.

[0006] Preferably, a funnel is fixedly passed through the surface of the support plate, and an opening is formed on the surface of the support plate near the funnel.

[0007] Preferably, a support rod is fixedly mounted on the bottom surface of the side panel.

[0008] Preferably, a roller is rotatably mounted on the bottom end of the support rod.

[0009] Preferably, the number of the bolts on one side is at least three.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: A retractable backstop, the center position of the backstop body penetrates through the rotating shaft of a conveyor equipment or other equipment. During the normal use of the rotating shaft, through the cooperation of the cylinder and the top block, the backstop body can prevent the rotating shaft from reversing or slipping smoothly. In order to improve safety, a retractable and movable cylinder is provided on each side of the backstop body. Through the cooperation of the side plate and the support, the side plate can move on the support to adjust the position of the cylinder, and bolts are used to fix the position of the side plate on the support, which is applicable to different usage scenarios and can increase the acting force on the rotating shaft of the equipment. When an accident occurs and the axial force of the rotating shaft is too large, the cylinders on both sides are started in a timely manner, and the cylinders quickly push the top block to fit onto the rotating shaft. The groove of the top block can make the top block fit the rotating shaft more closely, achieving the purpose of assisting in emergency stop. At the same time, the temperature reduction structure is activated to instantly cool the rotating shaft. Since the temperature reduction structure is arranged close to the backstop body, the water flowing out for cooling will not affect the equipment, avoiding the rotating shaft from being too hot and transmitting damage to the conveyor equipment. While increasing the flexibility, the safety performance is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] Figure 2 It is a schematic diagram of the back of the structure of the present utility model.

[0013] In the figure: 1. Backstop body; 2. Support; 3. Side plate; 4. Bolt; 5. Cylinder; 6. Top block; 7. Top plate; 8. Water tank; 9. Frame; 10. Box cover; 11. Support plate; 12. Opening; 13. Hopper; 14. Support rod; 15. Roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0015] Please refer to Figure 1-2, the present utility model provides a technical solution: a retractable backstop, including a backstop main body 1. On both sides of the backstop main body 1, supports 2 are fixedly assembled. Through holes are provided on the supports 2, and side plates 3 are movably inserted into the through holes. A bolt 4 is fixedly assembled on the side surface of the support 2, and the end of the bolt 4 is in close contact with the side plate 3. One end of a cylinder 5 is fixedly assembled on one side surface of the two side plates 3 that are close to each other. The other end of the cylinder 5 is fixedly assembled with a top block 6. A groove is provided on the surface of the top block 6. A cooling structure is provided at the top end of the front surface of the backstop main body 1.

[0016] A rotating shaft of a conveyor equipment or other equipment passes through the center position of the backstop main body 1. During the normal use of the rotating shaft, the backstop main body 1 can prevent the rotating shaft from reversing or slipping smoothly. To improve safety, a retractable and movable cylinder 5 is provided on both sides of the backstop main body 1. The side plate 3 can move on the support 2 to adjust the position of the cylinder 5. The bolt 4 is used to fix the position of the side plate 3 on the support 2. When an accident occurs and the axial force of the rotating shaft rotation is too large, the two side cylinders 5 are started in time. The cylinder 5 quickly pushes the top block 6 to fit onto the rotating shaft. The groove of the top block 6 can make the top block 6 fit more closely to the rotating shaft, achieving the purpose of assisting in emergency stop. At the same time, the cooling structure is activated to instantly cool the rotating shaft. Since the cooling structure is arranged close to the backstop main body 1, the water flowing out for cooling will not affect the equipment, avoiding the rotating shaft from being too hot and transmitting to the conveyor equipment, causing damage to the equipment.

[0017] Specifically, the cooling structure includes a top plate 7. A water tank 8 is movably inserted into the surface of the top plate 7. A frame 9 is fixedly assembled at the top end of the outer wall of the water tank 8. The frame 9 is located on the water tank 8. A box cover 10 is buckled at the bottom end of the water tank 8. A support plate 11 is rotatably assembled at a position close to the top block 6 on one side cylinder 5.

[0018] To avoid problems such as the rotating shaft being too hot during emergency stop, causing damage to the equipment, etc., a top plate 7 is fixed on the backstop main body 1. The water tank 8 is filled with water for cooling. The box cover 10 is buckled well. A sealing ring is provided on the box cover 10, which can not only increase the sealing effect but also increase the contact friction force with the water tank 8, avoiding the box cover 10 from falling off when inverted. The frame 9 can be stuck on the top plate 7, making the water tank 8 exactly in an inverted state. Adjust the angular position of the support plate 11 so that the support plate 11 can touch the box cover 10 after moving with the cylinder 5. During emergency stop, the cylinder 5 extends, driving the support plate 11 to move. The width of the support plate 11 needs to be set according to actual requirements. The support plate 11 abuts against the box cover 10, separating the box cover 10 from the water tank 8. The water stored in the water tank 8 flows out instantly and acts on the rotating shaft of the equipment, achieving the purpose of instant cooling.

[0019] Specifically, a funnel 13 is fixedly penetrated through the surface of the support plate 11, and an opening 12 is formed in the surface of the support plate 11 near the funnel 13.

[0020] In order to make the water flowing out of the water tank 8 act on the rotating shaft intensively, the water remaining on the surface of the support plate 11 flows down through the position of the funnel 13 and flows onto the rotating shaft for cooling. After a small amount of water does not enter the funnel 13, it drips from the position of the opening 12 and also acts on the rotating shaft to achieve the purpose of cooling.

[0021] Specifically, a support rod 14 is fixedly assembled to the bottom surface of the side plate 3.

[0022] A support rod 14 is fixed at the bottom end of the side plate 3. The support rod 14 can support the side plate 3 to prevent the side plate 3 from extending too long when telescoping on the support 2, enhancing stability.

[0023] Specifically, a roller 15 is rotatably installed at the bottom end of the support rod 14.

[0024] The bottom end of the support rod 14 is designed with a roller 15, which can facilitate the movement of the support rod 14 during the process of adjusting the position of the side plate 3.

[0025] Specifically, the number of bolts 4 on one side is at least three.

[0026] At least three bolts 4 are fixed on the same support 2, which can support the side plate 3 in three different directions to make the side plate 3 more stable.

[0027] Working principle: To improve safety, a retractable cylinder 5 is provided on both sides of the backstop body 1. The side plate 3 can move on the support 2 to adjust the position of the cylinder 5. Bolts 4 are used to fix the position of the side plate 3 on the support 2. When the axial force of the rotating shaft is too large in case of an accident, the two cylinders 5 are started in time. The cylinders 5 quickly push the top block 6 to fit onto the rotating shaft. The groove of the top block 6 can make the top block 6 fit the rotating shaft better to achieve the purpose of assisting in emergency stop. At the same time, the cooling structure is triggered to instantly cool the rotating shaft to prevent the rotating shaft from getting too hot and causing damage to the conveyor equipment.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A retractable backstop, comprising a backstop body (1), characterized in that: Supports (2) are fixedly mounted on both sides of the check valve body (1), a through hole is formed on the support (2), a side plate (3) is movably inserted into the through hole, a bolt (4) is fixedly mounted on the side of the support (2), the end of the bolt (4) is tightly fitted with the side plate (3), one end of a cylinder (5) is fixedly mounted on a side of the two side plates (3) close to each other, a top block (6) is fixedly mounted on the other end of the cylinder (5), a groove is formed on the surface of the top block (6), and a cooling structure is provided at the top end of the front face of the check valve body (1).

2. A retractable backstop according to claim 1, characterized in that: The cooling structure comprises a top plate (7), a water tank (8) is movably plugged into the surface of the top plate (7), a frame (9) is fixedly mounted on the top of the outer wall of the water tank (8), the frame (9) is located on the water tank (8), a box cover (10) is buckled on the bottom end of the water tank (8), and a support plate (11) is rotatably mounted on one side of the cylinder (5) near the top block (6).

3. A retractable backstop according to claim 2, characterized in that: A funnel (13) is fixedly passed through the surface of the support plate (11), and an opening (12) is provided on the surface of the support plate (11) at a position close to the funnel (13).

4. The retractable backstop according to claim 1, characterized in that: A support rod (14) is fixedly mounted on the bottom surface of the side plate (3).

5. A retractable backstop according to claim 4, characterized in that: A roller (15) is rotatably mounted on the bottom end of the support rod (14).

6. The retractable backstop according to claim 1, characterized in that: The number of the bolts (4) on one side is at least three.

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