Novel elevator double-brake safety tongs

Abstract

The utility model discloses a pair of novel elevator double-brake safety tongs. The pair of novel elevator double-brake safety tongs comprises a safety tongs shell and a movable wedge block arranged in the middle of the safety tongs shell. A bottom brake box is arranged at the bottom position of the inserting mounting connecting column, the outer side face of the connecting roller is a rough face, a connecting gear piece is arranged at the side edge position of the connecting roller, a movable ruler strip is arranged at the bottom position of the connecting gear piece, and a connecting reset spring is connected to the inner tail end position of the movable ruler strip; a contact rough surface is arranged on the outer side face of the movable ruler strip, the connecting roller can drive the movable ruler strip to move towards the inner side when rolling anticlockwise, and when the movable wedge block extrudes the elevator rope, the movable wedge block still moves to drive the connecting roller to roll anticlockwise. And the connecting roller rolls anticlockwise, so that the movable ruler strip moves towards the elevator pull rope and extrudes the elevator pull rope to achieve the auxiliary extrusion limiting effect, and then the safety of the safety tongs can be effectively enhanced and protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to elevator safety gear related technical field, concretely relates to a new elevator double brake safety gear. BACKGROUND

[0002] The elevator safety gear is an important safety protection device of the elevator, and its main function is to stop the elevator car and clamp it on the guide rail in an emergency such as overspeed or rope breakage, so as to ensure the safety of passengers and the elevator structure. The safety gear is usually installed on one side of the elevator car or the counterweight, and is divided into two types of instantaneous safety gear and progressive safety gear. The instantaneous safety gear generates a large stopping force when it acts, so that the car stops quickly, while the progressive safety gear allows the car to have a certain sliding distance when it stops, so as to reduce the impact force.

[0003] The working principle of the safety gear is based on the action of the speed limiter. When the speed of the elevator exceeds the limit speed set by the speed limiter, the speed limiter triggers the action of the safety gear, and through a series of mechanical linkage, the safety gear clamps the guide rail, thereby realizing the emergency braking of the elevator. The action of the safety gear usually involves the cooperative work of the speed limiter, the speed limiter rope, the tensioning device, and the safety gear body and the lifting linkage mechanism.

[0004] In order to ensure that the safety gear can work reliably at critical moments, regular maintenance and detection are very necessary. This includes checking whether the mechanical parts of the safety gear are intact, whether the spring has enough tension, and performing function tests, etc. It is an important guarantee to ensure the safety of the elevator to comply with relevant safety standards and regulations, and to standardize the design and use of the safety gear.

[0005] However, the new elevator double brake safety gear can exist when used for a long time, the friction between the configured movable wedge and the elevator rope becomes small, and the elevator still slides down slightly during braking, resulting in dangerous phenomena.

[0006] The utility model improves the above-mentioned problem, and concretely relates to a new elevator double brake safety gear with auxiliary braking. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a new elevator double brake safety gear to solve the problem that the new elevator double brake safety gear can exist when used for a long time, the friction between the configured movable wedge and the elevator rope becomes small, and the elevator still slides down slightly during braking, resulting in dangerous phenomena.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a new elevator double brake safety gear, which comprises a safety gear shell and a movable wedge arranged at the middle position of the safety gear shell.

[0009] The bottom position of the movable wedge is provided with a plug-in mounting connecting column, the bottom position of the plug-in mounting connecting column is provided with a bottom brake box, the side position of the bottom brake box is provided with a connecting roller, the outer side of the connecting roller is a rough surface, the side position of the connecting roller is provided with a connecting gear piece, the bottom position of the connecting gear piece is provided with a moving ruler, the inner end position of the moving ruler is connected with a connecting reset spring, the outer side position of the moving ruler is provided with a contact rough surface, and the connecting roller rolls counterclockwise to drive the moving ruler to move inward.

[0010] Preferably, the side position of the movable wedge is provided with a rough tooth structure, and the movable wedge is made of brass material.

[0011] Preferably, the upper side position of the movable wedge is provided with an adjusting bolt, and the adjusting bolt is connected with the movable wedge through threads.

[0012] Preferably, the outer side position of the movable wedge is provided with a guide sliding plate assembly, and the guide sliding plate assembly is composed of two inclined guide surfaces which have a certain angle with the vertical direction and form a ladder structure which is narrow at the top and wide at the bottom.

[0013] Preferably, the side position of the guide sliding plate assembly is provided with a U-shaped plate spring, and the U-shaped plate spring can generate a closing force through elastic deformation.

[0014] Preferably, the upper side position of the safety clamp shell is provided with a pull connection assembly, and the pull connection assembly comprises a pull plate, a connecting rod, a fixed mounting plate and various mechanical devices for activating the safety clamp.

[0015] Preferably, the inner position of the plug-in mounting connecting column is provided with a connecting built-in spring, the side position of the connecting built-in spring is provided with a clamping slope column, the end of the clamping slope column is a slope structure, and the clamping slope column is elastically connected with the plug-in mounting connecting column through the connecting built-in spring.

[0016] Compared with the prior art, the novel elevator double-brake safety clamp has the following beneficial effects:

[0017] The bottom position of the movable wedge is provided with a plug-in installation connecting column, the bottom position of the plug-in installation connecting column is provided with a bottom brake box, the side position of the bottom brake box is provided with a connecting drum, the outer side of the connecting drum is a rough surface, the side position of the connecting drum is provided with a connecting gear piece, the bottom position of the connecting gear piece is provided with a moving ruler, the inner end position of the moving ruler is connected with a connecting reset spring, and the outer side position of the moving ruler is provided with a contact rough surface. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the novel elevator double-brake safety pawl.

[0019] Figure 2 It is an enlarged structure schematic view of the position A of the novel elevator double-brake safety pawl.

[0020] Figure 3 It is an enlarged structure schematic view of the position B of the novel elevator double-brake safety pawl.

[0021] In the drawing: 1, lifting connection assembly; 2, safety pawl shell; 3, guide sliding plate assembly; 4, U-shaped plate spring; 5, adjusting bolt; 6, movable wedge; 7, plug-in installation connecting column; 8, bottom brake box; 9, connecting drum; 10, connecting gear piece; 11, moving ruler; 12, connecting reset spring; 13, contact rough surface; 14, connecting built-in spring; 15, clamping slope column. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0023] The present application provides a novel elevator double-brake safety pawl, which is characterized by the following technical scheme. Figures 1-3As shown, a new type of elevator double brake safety gear, including safety gear shell 2 and its safety gear shell 2 middle position setting movable wedge 6; The bottom position of the movable wedge 6 is provided with the plug-in installation connecting column 7, the bottom position of the plug-in installation connecting column 7 is provided with the bottom brake box 8, the side position of the bottom brake box 8 is provided with the connecting drum 9, the outer side of the connecting drum 9 is rough, the side position of the connecting drum 9 is provided with the connecting gear piece 10, the bottom position of the connecting gear piece 10 is provided with the moving ruler 11, the inner end position of the moving ruler 11 is connected with the connecting reset spring 12, the outer side position of the moving ruler 11 is provided with the contact rough surface 13, the connecting drum 9 counterclockwise rolling will drive the moving ruler 11 to move inward, when the movable wedge 6 extrudes the elevator rope, there is still movement to drive the connecting drum 9 counterclockwise rolling, the connecting drum 9 counterclockwise rolling will make the moving ruler 11 move to the elevator rope and extrude the elevator rope to play the role of auxiliary extrusion limit, thereby effectively strengthening the safety of the safety gear.

[0024] As Figure 1 shown, the side position of the movable wedge 6 is provided with rough tooth structure, the movable wedge 6 is made of brass material, the upper side position of the movable wedge 6 is provided with the adjusting bolt 5, the adjusting bolt 5 is connected with the movable wedge 6 through threads, the movable wedge 6 plays a role in the elevator safety gear by lifting and contacting with the guide rail to realize emergency braking. In the safe operation of the elevator, the normal work of the movable wedge is crucial.

[0025] As Figure 1 shown, the outer side position of the movable wedge 6 is provided with the guide slide plate assembly 3, the guide slide plate assembly 3 is composed of two inclined guide surfaces, which have a certain angle with the vertical direction, forming a ladder structure with narrow top and wide bottom, the guide slide plate assembly 3 is an important component of the safety gear, which is responsible for guiding the movable wedge in the safety gear to move along the correct path under abnormal conditions of the elevator, so that the safety gear can effectively clamp the guide rail to prevent the further falling of the elevator. The guide slide plate assembly 3 is usually composed of two inclined guide surfaces, which have a certain angle with the vertical direction, forming a ladder structure with narrow top and wide bottom. Such design helps to gradually reduce the gap between the movable wedge and the guide rail when the movable wedge moves upward, until the wedge completely clamps the guide rail.

[0026] As Figure 1As shown, the side position of the guide sliding plate assembly 3 is provided with a U-shaped plate spring 4, which can generate a closing force through its elastic deformation, and the U-shaped plate spring 4 is an important component in the elevator safety system, which is usually used in the progressive safety gear, as a key element to provide elastic clamping force. The design and function of the U-shaped plate spring 4 is to generate a closing force through its elastic deformation to stop and clamp the elevator on the guide rail in the event of elevator overspeed or other emergency, to ensure the safety of passengers.

[0027] As shown in the drawings, Figure 1 The upper side of the safety gear shell 2 is provided with a pull connection assembly 1, which includes a pull plate, a connecting rod, a fixed mounting plate and various mechanical devices for activating the safety gear, and the pull connection assembly 1 is a key component in the elevator safety system, which is responsible for triggering the action of the safety gear when the elevator overspeeds to prevent the elevator from falling.

[0028] As shown in the drawings, Figure 3 The inner position of the plug-in mounting connecting column 7 is provided with a connecting built-in spring 14, and the side position of the connecting built-in spring 14 is provided with a clamping slope column 15, and the end of the clamping slope column 15 is a slope structure, and the plug-in mounting connecting column 7 is elastically connected with the clamping slope column 15 through the connecting built-in spring 14, and the plug-in mounting connecting column 7 can be inserted and clamped into the movable wedge block 6 through the connecting built-in spring 14 and the clamping slope column 15, and when disassembling is needed, only need to rotate the plug-in mounting connecting column 7 to make the clamping slope column 15 rotate and extrude the slope to retract and disassemble, which is simple and fast, and can effectively improve the work efficiency of the workers.

[0029] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A new type of elevator double-brake safety gear, comprising a safety gear shell (2) and a movable wedge (6) arranged at the middle position of the safety gear shell (2) of the safety gear shell (2); characterized in that a plug-in mounting connecting column (7) is arranged at the bottom position of the movable wedge (6), a bottom brake box (8) is arranged at the bottom position of the plug-in mounting connecting column (7), a connecting drum (9) is arranged at the side position of the bottom brake box (8), the outer side of the connecting drum (9) is a rough surface, a connecting gear piece (10) is arranged at the side position of the connecting drum (9), a moving ruler (11) is arranged at the bottom position of the connecting gear piece (10), a connecting return spring (12) is connected to the inner end position of the moving ruler (11), a contact rough surface (13) is arranged at the outer side position of the moving ruler (11), and the connecting drum (9) rolls counterclockwise to drive the moving ruler (11) to move inward.

2. A new type of elevator double brake safety gear according to claim 1, characterized in that: The side position of the movable wedge (6) is provided with a rough tooth structure, and the movable wedge (6) is made of brass material.

3. A new type of elevator double brake safety gear according to claim 2, characterized in that: An adjusting bolt (5) is arranged at the upper side position of the movable wedge (6), and the adjusting bolt (5) is connected with the movable wedge (6) through threads.

4. A new type of elevator double brake safety gear according to claim 1, characterized in that: A guide sliding plate assembly (3) is arranged at the outer side position of the movable wedge (6), and the guide sliding plate assembly (3) is composed of two inclined guide surfaces which have a certain angle with the vertical direction, forming a ladder structure with narrow top and wide bottom.

5. A new type of elevator double brake safety gear according to claim 4, characterized in that: A U-shaped plate spring (4) is arranged at the side position of the guide sliding plate assembly (3), and the U-shaped plate spring (4) can generate a closing force through elastic deformation.

6. A new type of elevator double brake safety gear according to claim 1, characterized in that: A lifting connecting assembly (1) is arranged at the upper side position of the safety gear shell (2), and the lifting connecting assembly (1) comprises a lifting plate, a connecting rod, a fixed mounting plate and various mechanical devices for activating the safety gear.

7. A new type of elevator double brake safety gear according to claim 1, characterized in that: A connecting built-in spring (14) is arranged at the inner position of the plug-in mounting connecting column (7), a clamping slope column (15) is arranged at the side position of the connecting built-in spring (14), the end of the clamping slope column (15) is a slope structure, and the clamping slope column (15) is elastically connected with the plug-in mounting connecting column (7) through the connecting built-in spring (14).

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