Safety tongs linkage structure installed on upper beam

Abstract

The utility model relates to the technical field of elevator protection, in particular to a safety tongs linkage structure installed on an upper beam, which comprises a vertical beam main body, a safety tongs main body is arranged above the vertical beam main body, a safety tongs pull handle is installed on one side of the safety tongs main body, and one end of the safety tongs pull handle is connected with a steel wire rope lifting handle. One end of the steel wire rope lifting handle is connected with a torsional spring, a safety tongs linkage plate is installed on one side of the torsional spring, a safety tongs linkage seat is arranged at the bottom of the safety tongs linkage plate, and a contact switch body is arranged on one side of the safety tongs linkage plate. The two sets of safety tongs bodies are installed on the upper portion of the vertical beam body through the bolts, downward acting force can be kept on the two sets of safety tongs bodies through the two sets of torsional springs on the safety tongs linkage rod, and compared with a conventional overhead safety tongs linkage structure, the safety tongs linkage structure installed on the upper beam has the advantages that the distance between a lifting point and a speed governor is increased, and the safety tongs linkage structure is more stable. And the top layer height can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator protection, in particular to a safety clamp linkage structure installed on an upper beam. Background Art

[0002] The safety clamp is a safety protection device for elevators. The elevator safety clamp device is a safety device that stops the car urgently and clamps it on the guide rail when the elevator speed exceeds the speed limit set by the elevator speed limiter or when the suspension rope breaks or loosens under the control of the speed limiter. It provides effective protection for the safe operation of the elevator and is generally installed on the car frame or counterweight frame.

[0003] The existing safety clamp linkage lifting device is generally divided into car bottom linkage and car top linkage. When the car bottom linkage is used, the pit depth is required to be deeper, but the space of the home elevator is small, so it is not suitable for use in the home elevator;

[0004] The existing public technical solution, with announcement number CN206088649U, discloses a home elevator safety clamp upper beam device. It has an upper beam body, a guide wheel installed above the upper beam body, and a safety clamp device installed below the upper beam body. The two sides of the guide wheel are connected to a guide wheel mounting plate installed on the upper beam body. A maintenance device for avoiding malfunction during elevator maintenance is provided under the guide wheel. The lower side of the maintenance device is fixed to the guide wheel mounting plate by bolts. The safety clamp and the guide wheel are placed at the upper end of the upper beam device, so as to obtain a smaller top and bottom pit height, saving construction costs.

[0005] However, this type of upper beam device adopts a linkage structure on the top of the car. Since there are certain requirements for the distance between the lifting position and the speed limiter, the top floor height is required to be at least greater than 3000. When the top floor is too low, the speed limiter and the lifting device are likely to interfere with each other. Summary of the invention

[0006] The purpose of the utility model is to provide a safety clamp linkage structure installed on the upper beam, which can increase the distance between the lifting point and the speed limiter, effectively reduce the top floor height, and solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety clamp linkage structure installed on an upper beam, comprising a vertical beam main body, a safety clamp main body is arranged above the vertical beam main body, a safety clamp pulling handle is installed on one side of the safety clamp main body, and one end of the safety clamp pulling handle is connected to a wire rope lifting handle, one end of the wire rope lifting handle is connected to a torsion spring, and a safety clamp linkage plate is installed on one side of the torsion spring, a safety clamp linkage seat is arranged on the bottom of the safety clamp linkage plate, a contact switch main body is arranged on one side of the safety clamp linkage plate, and a contact switch striker is installed on one side of the contact switch main body, a safety clamp linkage rod is installed between two groups of the safety clamp linkage plates, a wire rope fixing plate is installed on the middle part of the wire rope lifting handle, and a cotter pin is installed between the wire rope fixing plate and the wire rope lifting handle, and a safety clamp linkage sleeve is arranged between the contact switch striker plate and the torsion spring.

[0008] Preferably, a safety clamp pad is provided between the safety clamp body and the vertical beam body, and a first safety clamp mounting bolt is provided inside the safety clamp pad.

[0009] Preferably, a safety clamp fine-tuning pad is provided on the other side of the safety clamp body, and a second safety clamp mounting bolt is provided inside the safety clamp fine-tuning pad, and the safety clamp body is installed on the upper part of the vertical beam body through the first safety clamp mounting bolt and the second safety clamp mounting bolt.

[0010] Preferably, a handle fixing shaft is installed at the connection between the safety clamp handle and the wire rope lifting handle, and a safety clamp handle bayonet is also provided on the safety clamp handle.

[0011] Preferably, a lifting handle fixing shaft is installed in the middle of the wire rope lifting handle, and a lifting handle fixing sleeve is provided on one side of the wire rope lifting handle, and the lifting handle fixing sleeve is provided on one side of the safety clamp linkage rod.

[0012] Preferably, a contact switch screw is provided at the connection between the contact switch body and the safety clamp linkage plate, and the contact switch screw is threadedly connected to the safety clamp linkage plate, and a linkage seat mounting bolt is provided between the safety clamp linkage seat and the vertical beam body.

[0013] Preferably, the wire rope lifting handle and the torsion spring are both provided with lifting handle torsion spring mounting bolts, and the upper and lower sides of the contact switch collision plate are both provided with positioning bolts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Both sets of safety clamp bodies are installed on the upper part of the vertical beam body by bolts. The two sets of torsion springs on the safety clamp linkage rod can maintain the downward force on the two sets of safety clamp bodies. Compared with the conventional top-mounted safety clamp linkage, the safety clamp linkage structure installed on the upper beam increases the distance between the lifting point and the speed limiter, which can effectively reduce the top floor height. It is simple to process and manufacture, and there is no intermediate transfer mechanism. It solves the interference problem between the speed limiter and the lifting device when the top floor is too low, and can effectively reduce the top floor height of the household ladder to 2700. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is the overall structural view of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the utility model;

[0019] Figure 3 For the utility model Figure 1 A magnified view of middle;

[0020] Figure 4 It is a structural schematic diagram of the safety clamp handle of the utility model.

[0021] Description of reference numerals:

[0022] 1. Beam body; 2. Safety clamp linkage rod; 3. Safety clamp linkage plate; 31. Safety clamp linkage seat; 4. Contact switch collision plate; 5. Wire rope lifting handle; 51. Lifting handle fixed sleeve; 52. Lifting handle fixed shaft; 6. Wire rope fixing plate; 7. Safety clamp pull handle; 71. Pull handle fixed shaft; 8. Safety clamp pad; 9. Safety clamp fine-tuning pad; 10. Safety clamp linkage sleeve; 11. Torsion spring; 12. Safety clamp body; 13. Contact switch body; 14. Linkage seat mounting bolt; 15. Positioning bolt; 16. Lifting handle torsion spring mounting bolt; 17. First safety clamp mounting bolt; 18. Second safety clamp mounting bolt; 19. Safety clamp pull handle bayonet; 20. Contact switch screw; 21. Split pin. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model provides a technical solution:

[0025] See also Figures 1 to 4 A safety clamp linkage structure installed on an upper beam comprises a vertical beam body 1, a safety clamp body 12 is arranged above the vertical beam body 1, a safety clamp pulling handle 7 is installed on one side of the safety clamp body 12, and one end of the safety clamp pulling handle 7 is connected to a wire rope lifting handle 5, one end of the wire rope lifting handle 5 is connected to a torsion spring 11, and a safety clamp linkage plate 3 is installed on one side of the torsion spring 11, a safety clamp linkage seat 31 is arranged at the bottom of the safety clamp linkage plate 3, a contact switch body 13 is arranged on one side of the safety clamp linkage plate 3, and a contact switch striker 4 is installed on one side of the contact switch body 13, a safety clamp linkage rod 2 is installed between the two groups of safety clamp linkage plates 3, a wire rope fixing plate 6 is installed in the middle of the wire rope lifting handle 5, and a cotter pin 21 is installed between the wire rope fixing plate 6 and the wire rope lifting handle 5, and a safety clamp linkage sleeve 10 is arranged between the contact switch striker 4 and the torsion spring 11.

[0026] By adopting the above technical solution, the torsion spring 11 has a downward holding force on the safety clamp body 12, and the safety clamp linkage rod 2 is installed on both sides of the car roof through the safety clamp linkage plate 3. When the safety clamp body 12 is actuated, the contact switch striker 4 first hits the safety open circuit switch, and the safety clamp body 12 continues to pull up and clamp the guide rail to complete the linkage of the safety clamp body 12. Compared with the conventional top-mounted safety clamp linkage, the safety clamp linkage structure installed on the upper beam increases the distance between the lifting point and the speed limiter, which can effectively reduce the top floor height.

[0027] Specifically, Figure 1As shown, a safety clamp pad 8 is arranged between the safety clamp body 12 and the vertical beam body 1, and a first safety clamp mounting bolt 17 is arranged inside the safety clamp pad 8, a safety clamp fine-tuning pad 9 is arranged on the other side of the safety clamp body 12, and a second safety clamp mounting bolt 18 is arranged inside the safety clamp fine-tuning pad 9, the safety clamp body 12 is installed on the upper part of the vertical beam body 1 through the first safety clamp mounting bolt 17 and the second safety clamp mounting bolt 18, a handle fixing shaft 71 is installed at the connection between the safety clamp handle 7 and the wire rope lifting handle 5, a safety clamp handle bayonet 19 is also arranged on the safety clamp handle 7, and the wire rope A lifting handle fixing shaft 52 is installed in the middle of the lifting handle 5, and a lifting handle fixing sleeve 51 is provided on one side of the wire rope lifting handle 5, the lifting handle fixing sleeve 51 is arranged on one side of the safety clamp linkage rod 2, a contact switch screw 20 is arranged at the connection between the contact switch body 13 and the safety clamp linkage plate 3, and the contact switch screw 20 is threadedly connected to the safety clamp linkage plate 3, a linkage seat mounting bolt 14 is arranged between the safety clamp linkage seat 31 and the vertical beam body 1, a lifting handle torsion spring mounting bolt 16 is arranged on the wire rope lifting handle 5 and the torsion spring 11, and positioning bolts 15 are arranged on the upper and lower sides of the contact switch impact plate 4.

[0028] By adopting the above technical solution, the elevator safety clamp body 12 is installed on the upper part of the vertical beam body 1 with the first safety clamp mounting bolt 17 and the second safety clamp mounting bolt 18, and is connected to the safety clamp handle 7 through a pin shaft. The safety clamp handle 7 is positioned with a cotter pin 21 and a handle fixing shaft 71, and the safety clamp fine-tuning pad 9 can be adjusted in number according to the position of the safety clamp body 12, so that the safety clamp body 12 is suitable for different vertical beam bodies 1.

[0029] Working principle: The elevator safety clamp body 12 is installed on the upper part of the vertical beam body 1 with the first safety clamp mounting bolt 17 and the second safety clamp mounting bolt 18, and is connected to the safety clamp handle 7 through a pin shaft. The safety clamp handle 7 is positioned with a cotter pin 21 and the handle fixed shaft 71. The torsion spring 11 has a downward holding force on the safety clamp body 12. The safety clamp linkage rod 2 is installed on both sides of the car roof through the safety clamp linkage plate 3. When the safety clamp body 12 is actuated, the contact switch collision plate 4 first hits the safety open circuit switch, and the safety clamp body 12 continues to pull up and clamps the guide rail to complete the linkage of the safety clamp body 12. Compared with the conventional top-mounted safety clamp linkage, the safety clamp linkage structure installed on the upper beam increases the distance between the lifting point and the speed limiter, which can effectively reduce the top floor height.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A safety gear linkage structure installed on an upper beam, comprising a vertical beam body (1), characterized in that: A safety clamp body (12) is arranged above the vertical beam body (1), a safety clamp pull handle (7) is installed on one side of the safety clamp body (12), and one end of the safety clamp pull handle (7) is connected to a wire rope lifting handle (5), one end of the wire rope lifting handle (5) is connected to a torsion spring (11), and one side of the torsion spring (11) is installed with a safety clamp linkage plate (3), a safety clamp linkage seat (31) is arranged at the bottom of the safety clamp linkage plate (3), and one end of the safety clamp linkage plate (3) is connected to a torsion spring (11). A contact switch body (13) is arranged on one side, and a contact switch striker (4) is installed on one side of the contact switch body (13); a safety clamp linkage rod (2) is installed between the two groups of safety clamp linkage plates (3); a wire rope fixing plate (6) is installed in the middle of the wire rope lifting handle (5), and a cotter pin (21) is installed between the wire rope fixing plate (6) and the wire rope lifting handle (5); a safety clamp linkage sleeve (10) is arranged between the contact switch striker (4) and the torsion spring (11).

2. A safety gear linkage structure installed on an upper beam according to claim 1, characterized in that: A safety clamp pad (8) is arranged between the safety clamp body (12) and the vertical beam body (1), and a first safety clamp mounting bolt (17) is arranged inside the safety clamp pad (8).

3. A safety gear linkage structure installed on an upper beam according to claim 1, characterized in that: A safety clamp fine-tuning pad (9) is arranged on the other side of the safety clamp body (12), and a second safety clamp mounting bolt (18) is arranged inside the safety clamp fine-tuning pad (9). The safety clamp body (12) is mounted on the upper part of the vertical beam body (1) via the first safety clamp mounting bolt (17) and the second safety clamp mounting bolt (18).

4. A safety gear linkage structure installed on an upper beam according to claim 1, characterized in that: A handle fixing shaft (71) is installed at the connection between the safety clamp handle (7) and the wire rope lifting handle (5), and a safety clamp handle latch (19) is also arranged on the safety clamp handle (7).

5. The safety gear linkage structure installed on the upper beam according to claim 1, characterized in that: A lifting handle fixing shaft (52) is installed in the middle of the wire rope lifting handle (5), and a lifting handle fixing sleeve (51) is arranged on one side of the wire rope lifting handle (5), and the lifting handle fixing sleeve (51) is arranged on one side of the safety clamp linkage rod (2).

6. A safety gear linkage structure installed on an upper beam according to claim 1, characterized in that: A contact switch screw (20) is provided at the connection between the contact switch body (13) and the safety clamp linkage plate (3), and the contact switch screw (20) is threadedly connected to the safety clamp linkage plate (3), and a linkage seat mounting bolt (14) is provided between the safety clamp linkage seat (31) and the vertical beam body (1).

7. A safety gear linkage structure installed on an upper beam according to claim 1, characterized in that: The wire rope lifting handle (5) and the torsion spring (11) are both provided with lifting handle torsion spring mounting bolts (16), and the contact switch striker plate (4) is both provided with positioning bolts (15) on both upper and lower sides.

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