Protective device for elevator safety tongs

Abstract

The utility model discloses an elevator safety tongs protection device which comprises a safety tongs base, a sliding friction block and a rolling friction assembly. The safety tongs base comprises a safety tongs body, a safety tongs first protruding part and a safety tongs second protruding part, wherein the safety tongs first protruding part and the safety tongs second protruding part are integrally formed with the safety tongs body. A safety tongs through groove is formed between the safety tongs first protruding part and the safety tongs second protruding part. The sliding friction block is fixedly connected with the first protruding part of the safety tongs and comprises a sliding friction block body, and the sliding friction block body is provided with a plurality of sliding friction block protruding edges fixedly connected with the sliding friction block body. The elevator safety tongs protection device has the advantages that sliding friction and rolling friction are combined at the same time, the speed reduction purpose of the steel wire rope can be achieved, and extreme conditions such as sudden stop or too slow speed reduction can be avoided.

Description

Technical Field

[0001] This utility model belongs to the field of elevator accessories, specifically relating to an elevator safety clamp protection device. Background Technology

[0002] The patent, with publication number CN222225654U and subject name "Utility Model Patent for Elevator Car Safety Clamp Protection Device," and IPC classification number B66B5 / 00, discloses a technical solution that includes "a motor bracket fixedly installed on the side wall of the car frame. A threaded rod is fixedly connected to the outer end of the motor bracket near the car frame. A blind hole is opened at the inner end of the threaded rod away from the motor bracket. A positioning rod is slidably connected inside the blind hole. A compression spring is provided between the positioning rod and the blind hole. One end of the compression spring is fixedly connected to the positioning rod, and the other end of the compression spring is fixedly connected to the threaded rod. A nut is sleeved on the outer side of the threaded rod. The nut is threadedly connected to the threaded rod. A groove is opened on the outer side of the nut away from the motor bracket. A rotating plate is rotatably connected inside the groove. A positioning hole is opened on the inner side of the rotating plate. The positioning hole is used in conjunction with the positioning rod."

[0003] Therefore, the above utility model patents have disclosed one technical solution for elevator safety clamp protection devices. However, the technical solutions disclosed in these utility model patents focus on preventing loosening and do not further address issues such as achieving both the purpose of decelerating the wire rope and avoiding extreme situations like sudden stops or excessively slow deceleration. Further improvements are needed. Utility Model Content

[0004] This utility model addresses the shortcomings of the existing technology by providing an elevator safety clamp protection device.

[0005] This utility model adopts the following technical solution: an elevator safety clamp protection device, comprising a safety clamp base, a sliding friction block, and a rolling friction assembly, wherein:

[0006] The safety clamp base includes a safety clamp body and a first safety clamp protrusion and a second safety clamp protrusion integrally formed with the safety clamp body, and a safety clamp through groove is provided between the first safety clamp protrusion and the second safety clamp protrusion.

[0007] The sliding friction block is fixedly connected to the first protrusion of the safety clamp. The sliding friction block includes a sliding friction block body, and the sliding friction block body is provided with a plurality of sliding friction block protrusions fixedly connected to the sliding friction block body.

[0008] The rolling friction assembly includes a rolling friction base and two rolling friction rollers. The two rolling friction rollers are symmetrically arranged on both sides of the rolling friction base and are rotatably connected to the rolling friction base.

[0009] As a preferred technical solution of the above technical solutions, the rolling friction base includes a rolling friction base body and a rolling friction base protrusion integrally formed with the rolling friction base body. The second protrusion of the safety clamp has a positioning hole for the second protrusion of the safety clamp, and the rolling friction base protrusion is engaged with the positioning hole for the second protrusion of the safety clamp.

[0010] As a preferred technical solution to the above technical solutions, the rolling friction roller includes a rolling friction roller body and a plurality of rolling friction roller protrusions fixedly connected to the rolling friction roller body.

[0011] As a preferred technical solution of the above technical solution, the rolling friction base body has four rolling friction base positioning holes, and the rolling friction roller also includes two rolling friction roller protrusions integrally formed with the rolling friction roller body, and the rolling friction roller protrusions are engaged with the rolling friction base positioning holes.

[0012] As a preferred technical solution of the above technical solution, the sliding friction block body has two sliding friction block concave portions, and sliding friction block protrusions are respectively provided on both sides of the sliding friction block concave portions.

[0013] The elevator safety clamp protection device disclosed in this utility model has the advantage of combining sliding friction and rolling friction, which can both achieve the purpose of decelerating the wire rope and avoid extreme situations such as sudden stop or excessive deceleration. Attached Figure Description

[0014] Figure 1 This is a perspective view of this application.

[0015] Figure 2 This is a three-dimensional view from another perspective of this application.

[0016] Figure 3 This is the main view of this application.

[0017] Figure 4 This is a perspective view of the sliding friction block of this application.

[0018] Figure 5 This is a perspective view of the rolling friction assembly of this application.

[0019] Figure 6 This is a perspective view of the rolling friction base of this application.

[0020] Figure 7 This is a perspective view of the rolling friction roller of this application.

[0021] Figure 8 This is a perspective view of the safety clamp base of this application.

[0022] Figure 9 This is a perspective view of the safety clamp base of this application from another angle.

[0023] The reference numerals in the accompanying drawings include: 100-Safety clamp base; 110-Safety clamp body; 111-Safety clamp through groove; 120-First protrusion of the safety clamp; 130-Second protrusion of the safety clamp; 131-Locking hole for the second protrusion of the safety clamp; 200-Sliding friction block; 210-Sliding friction block body; 220-Sliding friction block protrusion; 230-Inner recess of the sliding friction block; 300-Rolling friction assembly; 310-Rolling friction base; 311-Rolling friction base body; 312-Rolling friction base protrusion; 313-Rolling friction base locking hole; 320-Rolling friction roller; 321-Rolling friction roller body; 322-Rolling friction roller protrusion; 323-Rolling friction roller protrusion. Detailed Implementation

[0024] This utility model discloses an elevator safety clamp protection device. The following description, in conjunction with a preferred embodiment (Embodiment 1), refers to the accompanying drawings. Figures 1 to 9 The specific embodiments of this utility model will be further described below.

[0025] See attached diagram. Figures 1 to 9 , Figures 1 to 3 The elevator safety brake protection devices are shown separately. Figure 4 A sliding friction block is shown. Figure 5 A rolling friction assembly is shown. Figure 6 A rolling friction base is shown. Figure 7 A rolling friction roller is shown. Figure 8 and Figure 9 The safety clamp base is shown separately.

[0026] Example 1.

[0027] Preferably, the elevator safety clamp protection device includes a safety clamp base 100, a sliding friction block 200, and a rolling friction assembly 300, wherein:

[0028] The safety clamp base 100 includes a safety clamp body 110 and a first safety clamp protrusion 120 and a second safety clamp protrusion 130 integrally formed with the safety clamp body 110. A safety clamp through groove 111 (for inserting a wire rope) is provided between the first safety clamp protrusion 120 and the second safety clamp protrusion 130 (the wire rope is distributed along the safety clamp through groove 111).

[0029] The sliding friction block 200 is fixedly connected to the first protrusion 120 of the safety clamp. The sliding friction block 200 includes a sliding friction block body 210. The sliding friction block body 210 (on the side facing the rolling friction assembly 300) is provided with a plurality of sliding friction block protrusions 220 fixedly connected to the sliding friction block body 210. This allows the sliding friction block protrusions 220 to maintain sliding friction with the wire rope that needs to be decelerated, converting the kinetic energy of the wire rope into the heat energy of sliding friction. The heat energy can be dissipated through the gaps between the sliding friction block protrusions 220, thereby allowing the wire rope to decelerate faster.

[0030] The rolling friction assembly 300 includes a rolling friction base 310 and two rolling friction rollers 320. The two rolling friction rollers 320 are symmetrically disposed on both sides of the rolling friction base 310 and are rotatably connected to the rolling friction base 310. This allows the rolling friction rollers 320 to maintain rolling friction with the wire rope that needs to be decelerated, converting the kinetic energy of the wire rope into the heat energy of rolling friction, thereby making the wire rope decelerate more gradually. This allows the elevator safety gear protection device to combine sliding friction and rolling friction simultaneously, which can achieve the purpose of decelerating the wire rope while avoiding extreme situations such as sudden stop or excessively slow deceleration.

[0031] The rolling friction base 310 includes a rolling friction base body 311 and a rolling friction base protrusion 312 integrally formed with the rolling friction base body 311. The safety clamp second protrusion 130 has a safety clamp second protrusion positioning hole 131. The rolling friction base protrusion 312 is engaged with the safety clamp second protrusion positioning hole 131, so that the rolling friction base 310 remains relatively stable relative to the safety clamp second protrusion 130.

[0032] The rolling friction roller 320 includes a rolling friction roller body 321 and a plurality of rolling friction roller protrusions 322 fixedly connected to the rolling friction roller body 321.

[0033] The rolling friction base body 311 has four rolling friction base positioning holes 313, and the rolling friction roller 320 also includes two rolling friction roller protrusions 323 integrally formed with the rolling friction roller body 321. The rolling friction roller protrusions 323 are engaged with the rolling friction base positioning holes 313, so that the rolling friction roller 320 is rotatably connected to the rolling friction base body 311.

[0034] The sliding friction block body 210 has two sliding friction block recesses 230, and sliding friction block protrusions 220 are provided on both sides of the sliding friction block recesses 230, so that the heat generated by sliding friction can be dissipated more quickly with the help of the sliding friction block recesses 230.

[0035] The sliding friction block protrusion 220 and the rolling friction roller protrusion 322 are preferably made of wear-resistant materials.

[0036] It is worth mentioning that the specific components and other technical features of the sliding friction block protrusion 220 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement methods of these technical features can be conventionally selected in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0037] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An elevator safety clamp protection device, characterized in that, It includes a safety clamp base, a sliding friction block, and a rolling friction assembly, wherein: The safety clamp base includes a safety clamp body and a first safety clamp protrusion and a second safety clamp protrusion integrally formed with the safety clamp body, and a safety clamp through groove is provided between the first safety clamp protrusion and the second safety clamp protrusion. The sliding friction block is fixedly connected to the first protrusion of the safety clamp. The sliding friction block includes a sliding friction block body, and the sliding friction block body is provided with a plurality of sliding friction block protrusions fixedly connected to the sliding friction block body. The rolling friction assembly includes a rolling friction base and two rolling friction rollers. The two rolling friction rollers are symmetrically arranged on both sides of the rolling friction base and are rotatably connected to the rolling friction base.

2. The elevator safety clamp protection device according to claim 1, characterized in that, The rolling friction base includes a rolling friction base body and a rolling friction base protrusion integrally formed with the rolling friction base body body. The second protrusion of the safety clamp has a second protrusion positioning hole of the safety clamp, and the rolling friction base protrusion is engaged with the second protrusion positioning hole of the safety clamp.

3. The elevator safety clamp protection device according to claim 1, characterized in that, The rolling friction roller includes a rolling friction roller body and multiple rolling friction roller protrusions fixedly connected to the rolling friction roller body.

4. The elevator safety clamp protection device according to claim 2, characterized in that, The rolling friction base body has four rolling friction base positioning holes, and the rolling friction roller also includes two rolling friction roller protrusions integrally formed with the rolling friction roller body, which are engaged with the rolling friction base positioning holes.

5. The elevator safety clamp protection device according to claim 1, characterized in that, The sliding friction block body has two sliding friction block concave portions, and sliding friction block protrusions are provided on both sides of the sliding friction block concave portions.

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