Elevator overspeed protection device

Abstract

The utility model relates to the technical field of elevator equipment, in particular to an elevator overspeed protection device which comprises a shell and a track, a through groove matched with the track is formed in the front side of the shell, first sliding grooves are symmetrically formed in the lower portion of the shell, brake caliper blocks are arranged in the first sliding grooves, and the brake caliper blocks are connected with the through groove. Second sliding grooves are symmetrically formed in the upper portion of the shell, sliding blocks are arranged in the second sliding grooves in a sliding mode, cleaning brushes are fixedly arranged on the sides, close to the rail, of the sliding blocks, first jacking blocks matched with the brake caliper blocks are arranged in the second sliding grooves in a sliding mode, and lifting belts are fixedly arranged at the top ends of the first jacking blocks. The top ends of the lifting belts extend to the upper portion of the shell after passing through the adjacent second sliding grooves, the portions, located in the second sliding grooves, of the lifting belts are fixedly sleeved with second jacking blocks, sand, dust and other impurities on a rail can be effectively removed, the braking effect of the device is prevented from being affected, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to an elevator overspeed protection device, belonging to the technical field of elevator equipment. Background Art

[0002] An elevator is a permanent transportation device that serves several specific floors in a building. Its car runs on at least two rows of rigid tracks that are perpendicular to the horizontal plane or have an inclination angle of less than 15° to the plumb line. When the elevator exceeds the speed limit, a protective device is required to brake it to avoid casualties.

[0003] According to announcement number CN214031317U, an elevator overspeed protection device is disclosed, including an elevator overspeed protection device body, a car, a guide rail, a jaw, a buffer spring, a jaw slide rail, a lock and a lifting belt. The front end outer surface of the elevator overspeed protection device body is provided with a guide rail, the rear end outer surface of the elevator overspeed protection device body is provided with a car, the front end outer surface of the car is provided with a connecting ring, the lower end of the elevator overspeed protection device body is provided with a safety clamp, and one side of the safety clamp is provided with a protective sheet and a buffer spring. The utility model discloses an elevator overspeed protection device, which drives the safety clamp to clamp the elevator guide rail when the elevator overspeeds and drives the lifting rod, so that the elevator will not fall. The clamp ring provided on the elevator guide rail and the clamp block provided on the safety clamp can clamp the elevator when the safety clamp clamps the guide rail, thereby bringing better use prospects. When the above device is in use, the clamp protrusion and clamp recess provided can achieve the braking effect, but it is easy to cause the car to stop suddenly, thereby causing injuries to personnel, and the sand, dust and the like on the track have not been cleared. Therefore, when the clamp protrusion is damaged and falls off, the braking effect of the device will be affected, thereby making the device less practical. Utility Model Content

[0004] The purpose of the utility model is to provide an elevator overspeed protection device, which can effectively remove sand, dust and other dirt on the track to avoid affecting the braking effect of the device, improve the practicability of the device, and solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An elevator overspeed protection device comprises a shell and a track, a through groove matching the track is provided on the front side of the shell, a slide groove 1 is symmetrically provided in the lower part of the shell, a brake caliper block is provided in the slide groove 1, a slide groove 2 is symmetrically provided in the upper part of the shell, a slider is slidably provided in the slide groove 2, a cleaning brush is fixedly provided on the side of the slider close to the track, a top block 1 matching the brake caliper block is slidably provided in the slide groove 2, a lifting belt is fixedly provided on the top of the top block 1, the top of the lifting belt passes through the adjacent slide groove 2 and extends to the top of the shell, a top block 2 is fixedly sleeved on the lifting belt located in the slide groove 2, and a top block 3 matching the top block 2 is fixedly provided on the side of the slider away from the cleaning brush.

[0007] Furthermore, a spring 1 is fixedly provided on an upper portion of one side of the brake caliper block close to the track, and the other end of the spring 1 is fixedly connected to an inner wall of one side adjacent to the slide groove 1.

[0008] Furthermore, a plurality of support rods are fixedly provided in a symmetrical array on the upper part of one side of the brake caliper block close to the track, a sleeve is slidably sleeved on the other side of the support rod, and the other end of the sleeve is fixedly connected to the inner wall of one side adjacent to the slide groove.

[0009] Furthermore, a spring 2 is fixedly provided at the top end of the top block 1, and the top end of the spring 2 is fixedly connected to the top inner wall of the slide groove 2.

[0010] Furthermore, a plurality of springs three are fixedly provided in a symmetrical array on one side of the slider close to the track, and the other ends of the springs three are fixedly connected to the inner wall of one side adjacent to the slide groove two.

[0011] Furthermore, a spring four is fixedly provided at the top end of the top block two, and the top end of the spring four is fixedly connected to the top inner wall of the slide groove two.

[0012] Furthermore, the cleaning brushes are all provided with a fixed base and a side of the fixed base close to the track is fixedly provided with zircon brush filaments.

[0013] The beneficial effects of the utility model are:

[0014] The utility model is provided with a top block two, a top block three and a cleaning brush. When in use, the cleaning brush contacts the track, so that the track can be cleaned by the cleaning brush, and residual dirt such as sand and dust on the track is avoided. When the elevator is overspeeding, the top block one is driven to move upward by the pulling belt. At this time, the top block one will squeeze the spring two, and the top block one will push the brake caliper block to move into the through groove, so that the brake caliper block is closely contacted with the track, and at the same time, the top block two is driven upward by the pulling belt to squeeze the spring four, so that the top block two is separated from the top block three. At this time, the spring three will push the slider to move, so that the slider drives the cleaning brush to move into the slide groove two, so that the cleaning brush is separated from the track, so that braking can be completed. The utility model can effectively remove sand, dust and other dirt on the track, avoid affecting the braking effect of the device, and improve the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of an elevator overspeed protection device of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of an elevator overspeed protection device of the utility model;

[0018] Figure 3 The utility model is an elevator overspeed protection device Figure 2 The enlarged view of point A in the middle;

[0019] Figure 4 This is a structural schematic diagram of a support rod and a sleeve of an elevator overspeed protection device of the utility model;

[0020] Numbers in the figure: 1. shell; 2. track; 3. slideway 1; 4. brake caliper block; 5. slideway 2; 6. slider; 7. cleaning brush; 8. top block 1; 9. lifting belt; 10. top block 2; 11. top block 3; 12. spring 1; 13. support rod; 14. sleeve; 15. spring 2; 16. spring 3; 17. spring 4. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] An elevator overspeed protection device comprises a shell 1 and a track 2, wherein a through groove matching the track 2 is provided on the front side of the shell 1, a slide groove 1 3 is symmetrically provided in the lower part of the shell 1, a brake caliper block 4 is provided in each of the slide grooves 1 3, a slide groove 2 5 is symmetrically provided in the upper part of the shell 1, a slider 6 is slidably provided in each of the slide grooves 2 5, a cleaning brush 7 is fixedly provided on the side of the slider 6 close to the track 2, a top block 1 8 matching the brake caliper block 4 is slidably provided in each of the slide grooves 2 5, a lifting belt 9 is fixedly provided on the top of the top block 1 8, the top of the lifting belt 9 passes through the adjacent slide groove 2 5 and extends to the top of the shell 1, a top block 2 10 is fixedly sleeved on the lifting belt 9 located in the slide groove 2 5, and a top block 3 11 matching the top block 2 10 is fixedly provided on the side of the slider 6 away from the cleaning brush 7.

[0024] Specifically, Figure 1-Figure 4 As shown, a spring 12 is fixedly provided on the upper part of one side of the brake caliper block 4 close to the track 2, and the other end of the spring 12 is fixedly connected to the inner wall of one side adjacent to the slide groove 3; a plurality of support rods 13 are fixedly provided on the upper part of one side of the brake caliper block 4 close to the track 2 in a symmetrical array, and a sleeve 14 is slidably sleeved on the other side of the support rod 13, and the other end of the sleeve 14 is fixedly connected to the inner wall of one side adjacent to the slide groove 3; a spring 2 15 is fixedly provided on the top of the top block 8, and the top of the spring 2 15 is fixedly connected to the inner wall of the top of the slide groove 2 5, and the top block 8 is driven upward by the lifting belt 9, at this time, the top block 8 will squeeze the spring 2 15, and the top block 8 will push the brake caliper block 4 to move into the through groove, and at the same time, the brake caliper block 4 will squeeze the spring 12, and the brake caliper block 4 drives the support rod 13 to slide on the sleeve 14, and the brake caliper block 4 can be supported by the support rod 13 and the sleeve 14.

[0025] Specifically, Figure 1-Figure 4 As shown, a plurality of springs three 16 are fixedly provided on one side of the slider 6 close to the track 2 in a symmetrical array, and the other ends of the springs three 16 are fixedly connected to the inner wall of the side adjacent to the slide groove two 5, and a spring four 17 is fixedly provided on the top of the top block two 10, and the top ends of the springs four 17 are fixedly connected to the inner wall of the top end of the slide groove two 5, and the top block two 10 is driven by the lifting belt 9 to squeeze the spring four 17 upward, so that the top block two 10 is separated from the top block three 11, and at this time the spring three 16 will push the slider 6 to move, so that the slider 6 drives the cleaning brush 7 to move into the slide groove two 5.

[0026] Example 2 Please refer to Figure 1-Figure 4The difference between this embodiment and embodiment 1 is that the cleaning brush 7 is provided with a fixed base and a zircon brush wire is fixedly provided on the side of the fixed base close to the track 2. By adopting zircon brush wire, the high temperature resistance of the cleaning brush 7 can be improved to avoid fire during the cleaning process.

[0027] The working principle of the utility model is as follows: when in use, the shell 1 is fixed on the outer wall of the car, and the cleaning brush 7 contacts the track 2, so that the track 2 can be cleaned by the cleaning brush 7 to avoid residual sand, dust and other dirt on the track 2. When the elevator is overspeeding, the top block 8 is driven upward by the lifting belt 9. At this time, the top block 8 will squeeze the spring 2 15, and the top block 8 will push the brake caliper block 4 to move into the through groove. At the same time, the brake caliper block 4 will squeeze the spring 12, and the brake caliper block 4 drives the support rod 13 to slide on the sleeve 14. The support rod 13 and the sleeve 14 can support the brake caliper block 4, so that the brake caliper block 4 is in close contact with the track 2, and the top block 10 is driven by the lifting belt 9 to squeeze the spring 4 17 upward, so that the top block 10 is separated from the top block 3 11. At this time, the spring 3 16 will push the slider 6 to move, so that the slider 6 drives the cleaning brush 7 to move into the slide groove 2 5, so that the cleaning brush 7 is separated from the track 2, so that braking can be completed.

[0028] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator overspeed protection device, comprising a housing (1) and a track (2), characterized in that: The front side of the shell (1) is provided with a through groove matching the track (2); the lower part of the shell (1) is symmetrically provided with a first slide groove (3); each of the first slide grooves (3) is provided with a brake caliper block (4); the upper part of the shell (1) is symmetrically provided with a second slide groove (5); each of the second slide grooves (5) is slidably provided with a slider (6); a cleaning brush (7) is fixedly provided on one side of the slider (6) close to the track (2); each of the second slide grooves (5) is slidably provided with a slider matching the track (2); A top block (8) matching the brake caliper block (4) is provided with a lifting belt (9) fixedly disposed on the top of the top block (8), and the top of the lifting belt (9) extends to the top of the shell (1) after passing through the adjacent slide groove (5), and a top block (10) is fixedly sleeved on the lifting belt (9) located in the slide groove (5), and a top block (11) matching the top block (10) is fixedly disposed on the side of the slider (6) away from the cleaning brush (7).

2. An elevator overspeed protection device according to claim 1, characterized in that: A spring (12) is fixedly provided on the upper part of one side of the brake caliper block (4) close to the track (2), and the other end of the spring (12) is fixedly connected to the inner wall of one side adjacent to the slide groove (3).

3. An elevator overspeed protection device according to claim 1, characterized in that: A plurality of support rods (13) are fixedly arranged in a symmetrical array on the upper part of one side of the brake caliper block (4) close to the track (2), a sleeve (14) is slidably sleeved on the other side of the support rod (13), and the other end of the sleeve (14) is fixedly connected to the inner wall of one side adjacent to the slide groove (3).

4. An elevator overspeed protection device according to claim 1, characterized in that: The top end of the top block 1 (8) is fixedly provided with a spring 2 (15), and the top end of the spring 2 (15) is fixedly connected to the top inner wall of the slide groove 2 (5).

5. An elevator overspeed protection device according to claim 1, characterized in that: A plurality of springs three (16) are fixedly arranged in a symmetrical array on one side of the slider (6) close to the track (2), and the other ends of the springs three (16) are fixedly connected to the inner wall of one side adjacent to the slide groove two (5).

6. An elevator overspeed protection device according to claim 1, characterized in that: The top end of the second top block (10) is fixedly provided with a spring four (17), and the top end of the spring four (17) is fixedly connected to the top inner wall of the second slide groove (5).

7. An elevator overspeed protection device according to claim 1, characterized in that: The cleaning brushes (7) are all provided with a fixed base, and zircon brush filaments are fixedly provided on one side of the fixed base close to the track (2).

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