Safety tongs wedge block and elevator safety tongs
By setting wear-resistant parts on the working side of the elevator safety clamp wedge block, the problem of damage to the guide rails caused by elevator safety clamps in the load test is solved, and lower rail wear and longer service life is achieved.
Patent Information
- Application Number
- CN202420540424.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-19
AI Technical Summary
Elevator safety clamps are prone to damage the guide rails during load tests, especially under high load conditions, which leads to the need for repair or replacement of the guide rails.
Design a safety clamp wedge block, with wear-resistant parts provided at the upper and lower ends of the working side of the working side. The wear-resistant parts partially or all protrude from the working side surface of the wedge block body, and the hardness is less than the hardness of the wedge block body, and they are fitted through concave and convex structure or The block-like structure covers to ensure that the wear-resistant parts come into contact with the rails.
By reducing the contact area between the wear-resistant parts and the guide rail, wedge blocks are avoided, wear on the guide rails is reduced, and the service life of the guide rails is extended.
Smart Images
Figure CN222454192U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of elevators, in particular to a safety clamp wedge and an elevator safety clamp. Background Art
[0002] When the elevator safety clamp is subjected to load test, the safety clamp wedge will damage the guide rail, especially when the car is loaded with a load of 125% of the rated load and descends at the rated speed, or descends at a lower speed, the safety clamp will be clamped or even stuck on the guide rail, causing great damage to the guide rail: the working surface of the guide rail is bitten by the safety clamp wedge and the guide rail is bent. After the test is completed, the guide rail needs to be repaired or even replaced. So some people thought of adding a wear-resistant layer to the wedge of the safety clamp to reduce the wear of the safety clamp on the guide rail. The problem is that the wear-resistant layer is usually made of polyurethane, polytetrafluoroethylene and other materials, and the surface is relatively smooth. At present, the wear-resistant layer is usually fully laid on the working surface of the wedge, and it is easy to slip when in contact with the guide rail. Utility Model Content
[0003] The utility model aims to provide a safety clamp wedge and an elevator safety clamp to solve the problems raised in the above-mentioned background technology.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A safety clamp wedge comprises a wedge body, wherein the wedge body has a working side for clamping a guide rail, a group of wear-resistant parts are respectively arranged at the upper and lower ends of the working side of the wedge body, and the wear-resistant parts partially or completely protrude from the working side surface of the wedge body, and the hardness of the wear-resistant parts is less than the hardness of the wedge body.
[0006] Furthermore, the wear-resistant part is a layered structure laid on the working side surface of the wedge body.
[0007] Furthermore, the wear-resistant part is engaged with the wedge block body via a concave-convex structure.
[0008] Furthermore, wear-resistant parts are respectively arranged on the top and bottom of the wedge body.
[0009] Furthermore, the wear-resistant part is a block structure.
[0010] The utility model also provides a safety clamp wedge, comprising a wedge body, wherein the wedge body has a working side for clamping a guide rail, the working side of the wedge body is spaced apart with wear-resistant parts, the wear-resistant parts partially or completely protrude from the working side surface of the wedge body, and the hardness of the wear-resistant parts is less than the hardness of the wedge body.
[0011] Furthermore, a plurality of grooves are arranged on the working side of the wedge body, and the wear-resistant parts are arranged in the grooves.
[0012] The utility model also provides a safety clamp wedge, comprising a wedge body, the wedge body having a working side for clamping a guide rail, the working side of the wedge body being provided with a plurality of wear-resistant parts at intervals along a first direction, the wear-resistant parts being strip-shaped structures, the wear-resistant parts partially or completely protruding from the surface of the wedge body, and the hardness of the wear-resistant parts being less than the hardness of the wedge body.
[0013] Furthermore, a plurality of grooves are arranged at intervals along the first direction on the working side of the wedge body, and the wear-resistant parts are arranged in the grooves in a one-to-one correspondence.
[0014] The utility model also provides an elevator safety clamp, comprising the wedge block as described above.
[0015] Compared with the prior art, the beneficial effect of the utility model is that the wear-resistant part of the utility model only partially covers the working side surface of the wedge block, so that the wedge block and the wear-resistant layer will contact the guide rail, reducing the contact area between the wear-resistant part and the guide rail, and preventing the wedge block from slipping. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural diagram of Example 1.
[0017] Figure 2 This is a structural schematic diagram of Example 2.
[0018] Figure 3 Schematic diagram of the structure of the wedge block sliding seat in Example 2.
[0019] Figure 4 This is a structural schematic diagram of Example 3.
[0020] Figure 5 This is a structural schematic diagram of Example 4.
[0021] Figure 6 This is a schematic diagram of the structure of the wedge block sliding seat in Example 4.
[0022] Figure 7 This is a structural schematic diagram of Example 5.
[0023] Figure 8 This is a structural schematic diagram of Example 6.
[0024] Fig. 9 This is a schematic diagram of the structure of the wedge block sliding seat in Example 6.
[0025] Fig.10 This is a structural schematic diagram of Example 7.
[0026] Fig.11 This is a schematic diagram of the wear-resistant part structure in Example 7.
[0027] Fig.12 This is a structural schematic diagram of Example 8.
[0028] Fig.13 This is a schematic diagram of the structure of the wedge block sliding seat in Example 8.
[0029] In the figure: safety gear housing 1, wedge block sliding seat 2, wedge block 3, wedge block body 300, wear-resistant part 301, wear-resistant part main body 3010, wear-resistant part connecting part 3011, groove 302, embedded groove 303, convex strip 304. DETAILED DESCRIPTION
[0030] 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. Example 1
[0031] See also Figure 1 A safety clamp wedge includes a wedge body 300. The wedge body 300 has a working side for clamping a guide rail. Wear-resistant parts 301 are respectively arranged at the upper and lower ends of the working side of the wedge body 300. The wear-resistant parts 301 partially protrude from the working side surface of the wedge body 300. The wear-resistant parts 301 are made of polyurethane or polytetrafluoroethylene material, and their hardness is less than that of the wedge body 300.
[0032] Continue reading Figure 1 The wear-resistant part 301 is a layered structure laid on the working side surface of the wedge block body 300, and is embedded with the wedge block body 300 through a concave-convex structure.
[0033] Two convex strips 304 are provided on the wear-resistant part 301 , and two embedding grooves 303 are respectively provided on the upper and lower working sides of the wedge body 300 , and the convex strips 304 are embedded in the corresponding embedding grooves 303 .
[0034] A plurality of grooves 302 are arranged at intervals on the upper and lower working sides of the wedge body 300 . The grooves 302 are strip-shaped grooves arranged in the horizontal direction. The grooves are located between the upper and lower wear-resistant parts 301 . Example 2
[0035] See also Figure 2 and Figure 3 An elevator safety clamp comprises a safety clamp housing 1, wherein wedge block sliding seats 2 are respectively arranged on the left and right sides of the safety clamp housing 1, the two wedge block sliding seats 2 are arranged opposite to each other, and the wedge blocks 3 as described in Example 1 are arranged on the opposite sides of the two wedge block sliding seats 2.
[0036] Among them, the main structure of the elevator safety clamp is a well-known technology, and the only difference is the wedge block 3. Example 3
[0037] See also Figure 4 A safety clamp wedge includes a wedge body 300. The wedge body 300 has a working side for clamping a guide rail. Wear-resistant parts 301 are respectively arranged at the upper and lower ends of the working side of the wedge body 300. The wear-resistant parts 301 partially protrude from the working side surface of the wedge body 300. The wear-resistant parts 301 are made of polyurethane or polytetrafluoroethylene material, and their hardness is less than that of the wedge body 300.
[0038] Continue reading Figure 4 The wear-resistant part 301 is a block structure arranged on the top and bottom of the wedge body 300, rather than a layered structure arranged on the working side surface of the wedge body 300.
[0039] A plurality of grooves 302 are arranged at intervals on the upper and lower working sides of the wedge body 300 . The grooves 302 are strip-shaped grooves arranged in the horizontal direction. The grooves 302 are located between the upper and lower wear-resistant parts 301 . Example 4
[0040] See also Figure 5 and Figure 6 An elevator safety clamp comprises a safety clamp housing 1, wherein wedge block sliding seats 2 are respectively arranged on the left and right sides of the safety clamp housing 1, the two wedge block sliding seats 2 are arranged opposite to each other, and the wedge blocks 3 as described in Example 1 are arranged on the opposite sides of the two wedge block sliding seats 2.
[0041] Among them, the main structure of the elevator safety clamp is a well-known technology, and the only difference is the wedge block 3. Example 5
[0042] Continue reading Figure 7 A safety clamp wedge includes a wedge body 300, the wedge body 300 has a working side for clamping a guide rail, a plurality of grooves 302 are arranged at intervals on the working side of the wedge body 300, the grooves 302 are strip grooves arranged in the horizontal direction, a plurality of wear-resistant parts 301 are arranged in the horizontal direction in each groove 302, the wear-resistant parts 301 are cylindrical structures, part of which protrudes from the grooves 302 and protrudes from the working side surface of the wedge body 300, and the wear-resistant parts 301 on all the grooves 302 together form an array, which is distributed all over the working side surface of the wedge body 300. The hardness of the wear-resistant parts 301 is less than the hardness of the wedge body 300. Example 6
[0043] See also Figure 8 and Fig. 9An elevator safety clamp comprises a safety clamp housing 1, wherein wedge block sliding seats 2 are respectively arranged on the left and right sides of the safety clamp housing 1, the two wedge block sliding seats 2 are arranged opposite to each other, and the wedge blocks 3 as described in Example 1 are arranged on the opposite sides of the two wedge block sliding seats 2.
[0044] Among them, the main structure of the elevator safety clamp is a well-known technology, and the only difference is the wedge block 3. Example 7
[0045] See also Fig.10 and Fig.11 A safety clamp wedge includes a wedge body 300, the wedge body 300 has a working side for clamping a guide rail, a plurality of wear-resistant parts 301 are arranged at intervals along a first direction on the working side of the wedge body 300, the wear-resistant parts 301 are strip structures arranged along a second direction, the wear-resistant parts 301 partially protrude from the surface of the wedge body 300, and the hardness of the wear-resistant parts 301 is less than the hardness of the wedge body 300. The first direction is preferably a vertical direction, and the second direction is preferably a horizontal direction perpendicular to the first direction.
[0046] Among them, a plurality of grooves 302 are arranged at intervals along the first direction on the working side of the wedge body 300, and the grooves 302 are strip structures arranged along the second direction. The wear-resistant part 301 includes a wear-resistant part main body 3010 and a plurality of wear-resistant part connecting parts 3011 connected to the wear-resistant part main body 3010. The wear-resistant part 301 corresponds to the grooves 302 one by one. The wear-resistant part connecting parts 3011 of the wear-resistant part 301 are arranged in the grooves 302. The wear-resistant part main body 3010 of the wear-resistant part 301 is suspended on one side of the groove 302. When the wear-resistant part main body 3010 is squeezed, it will shrink into the groove 302. The shape and size of the wear-resistant part main body 3010 are consistent with the shape and size of the groove 302. Example 8
[0047] See also Fig.12 and Fig.13 An elevator safety clamp comprises a safety clamp housing 1, wherein wedge block sliding seats 2 are respectively arranged on the left and right sides of the safety clamp housing 1, the two wedge block sliding seats 2 are arranged opposite to each other, and the wedge blocks 3 as described in Example 1 are arranged on the opposite sides of the two wedge block sliding seats 2.
[0048] Among them, the main structure of the elevator safety clamp is a well-known technology, and the only difference is the wedge block 3.
[0049] It should be noted that the safety clamp wedge in the above embodiment is not only applicable to double-wedge type elevator safety clamps, but also applicable to single-wedge type elevator safety clamps.
[0050] Although 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. A safety clamp wedge, comprising a wedge body (300), wherein the wedge body (300) has a working side for clamping a guide rail, characterized in that: A group of wear-resistant parts (301) are respectively arranged at the upper and lower ends of the working side of the wedge body (300); the wear-resistant parts (301) partially or completely protrude from the working side surface of the wedge body (300); and the hardness of the wear-resistant parts (301) is less than the hardness of the wedge body (300).
2. A safety clamp wedge according to claim 1, characterized in that: The wear-resistant part (301) is a layered structure laid on the working side surface of the wedge body (300).
3. A safety clamp wedge according to claim 2, characterized in that: The wear-resistant part (301) and the wedge block body (300) are embedded with each other via a concave-convex structure.
4. A safety clamp wedge according to claim 1, characterized in that: Wear-resistant parts (301) are respectively arranged on the top and bottom of the wedge body (300).
5. A safety clamp wedge according to claim 4, characterized in that: The wear-resistant part (301) is a block structure.
6. A safety clamp wedge, comprising a wedge body (300), wherein the wedge body (300) has a working side for clamping a guide rail, characterized in that: The working side of the wedge body (300) is spaced apart with wear-resistant parts (301), the wear-resistant parts (301) partially or completely protrude from the working side surface of the wedge body (300), and the hardness of the wear-resistant parts (301) is less than the hardness of the wedge body (300).
7. A safety clamp wedge according to claim 6, characterized in that: A plurality of grooves (302) are arranged on the working side of the wedge body (300), and the wear-resistant parts (301) are arranged in the grooves (302).
8. A safety clamp wedge, comprising a wedge body (300), wherein the wedge body (300) has a working side for clamping a guide rail, characterized in that: A plurality of wear-resistant parts (301) are arranged at intervals along a first direction on the working side of the wedge body (300); the wear-resistant parts (301) are strip-shaped structures; the wear-resistant parts (301) partially or completely protrude from the surface of the wedge body (300); and the hardness of the wear-resistant parts (301) is less than the hardness of the wedge body (300).
9. A safety clamp wedge according to claim 8, characterized in that: A plurality of grooves (302) are arranged at intervals along a first direction on the working side of the wedge body (300), and the wear-resistant parts (301) are arranged in the grooves (302) in a one-to-one correspondence.
10. An elevator safety clamp, characterized in that: Comprising a wedge block (3) as described in any one of claims 1 to 9.