CN211733509U

CN211733509U - Intelligent explosion-proof safety tongs for elevator

Info

Publication number: CN211733509U
Application number: CN202020251843.XU
Authority: CN
Inventors: 段松杰; 周元林; 杨建荣; 秦健聪
Original assignee: Dongnan Elevator Co Ltd
Current assignee: Dongnan Elevator Co Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-10-23
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses an intelligence explosion-proof safety tongs for elevator, it includes upper plate, hypoplastron and fixes the pincers body between upper plate and hypoplastron, be equipped with first guide way on the lateral wall of the pincers body, first guide way link up from top to bottom and go up narrow width down, safety tongs still includes slidable and locates in the first guide way and symmetrical distribution in the pincers piece in the guide way, two the face that the pincers piece is relative is tight face of clamp, press from both sides tight face looks parallel arrangement, and two be equipped with no spark coating on the tight face of clamp respectively. The clamp block of the safety clamp adopts the sparkless coating treatment, the structural form of a wedge block is adopted, the working surface adopts the rhombic turning lines, the friction force clamping force of the working surface of the clamp block meets the requirement, and the emergency braking of the safety clamp is not influenced. The distance between the front surface of the safety gear and the guide rail is further reduced, so that the safety gear does not interfere with the guide rail and related parts thereof when moving up and down along with the elevator.

Description

Intelligent explosion-proof safety tongs for elevator

Technical Field

The utility model belongs to the elevator equipment field, in particular to explosion-proof safety tongs for intelligence elevator.

Background

Along with the diversity of elevator products and elevator application environments, corresponding elevator safety components such as safety tongs can be synchronously matched, and the requirements of the application environments are met. The explosion-proof elevator is an elevator in special occasions applied to special explosive dangerous places, the explosion-proof design of the elevator can reliably prevent dangerous spark ignition and dangerous high-temperature ignition, and corresponding explosion-proof safety measures must be taken for all parts or parts which can generate dangerous sparks or dangerous temperatures. The safety gear provided in explosion-proof elevators must therefore meet the basic requirements of explosion protection. At present, the instantaneous safety tongs of an elevator are mature, products are rich and various, and no explosion-proof instantaneous safety tongs capable of meeting the explosion-proof requirement exists. Aiming at the eager demand of the explosion-proof elevator market, an explosion-proof instantaneous safety tongs is urgently needed to be developed, and the matched explosion-proof elevator is used in an explosive dangerous place so as to ensure the safety of elevator drivers and passengers and goods.

Disclosure of Invention

The utility model aims at providing a high intelligent explosion-proof safety tongs for elevator of security.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an explosion-proof safety tongs for intelligent elevator, its includes upper plate, hypoplastron and fixes the pincers body between upper plate and hypoplastron, be equipped with first guide way on the lateral wall of the pincers body, first guide way link up from top to bottom and go up narrow wide down, safety tongs still includes slidable and locates in the first guide way and the symmetric distribution in the pincers piece in the guide way, two the face that the pincers piece is relative is for pressing from both sides tight face, it sets up, and two to press from both sides tight face looks parallel be equipped with no spark coating on the tight face of clamp respectively.

Preferably, the sparkless coating is an electroplated diamond coating.

Preferably, the safety tongs further comprise two guide plates which are fixed on the side wall of the tongs body and respectively form the sliding space of the tongs block in the first guide groove.

Furthermore, the guide plate has a guide strip that extends towards the first guide way direction, the guide strip slope sets up, the tong piece towards be equipped with on the side in the first guide way outside in the guide strip assorted second guide way, guide strip sliding connection in the second guide way.

Preferably, the side face of the clamp block, which is opposite to the clamping face, is a sliding face, and the sliding face on the same clamp block has the same inclination angle with the second guide groove.

Preferably, the clamping surface is provided with diamond-shaped teeth, and the sparkless coating is arranged on the surfaces of the diamond-shaped teeth.

The beneficial effects of the utility model reside in that: the clamp block of the safety clamp adopts the sparkless coating treatment, the structural form of a wedge block is adopted, the working surface adopts the rhombic turning lines, the friction force clamping force of the working surface of the clamp block meets the requirement, and the emergency braking of the safety clamp is not influenced. The distance between the front surface of the safety gear and the guide rail is further reduced, so that the safety gear does not interfere with the guide rail and related parts thereof when moving up and down along with the elevator.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a perspective view of the present invention;

fig. 4 is a front view of the safety gear in normal operation of the elevator with one of the guide plates removed;

fig. 5 is a front view of the safety gear in an emergency braking state of the elevator with one of the guide plates removed;

wherein 1, an upper plate; 2. a clamp body; 3. a clamp block; 4. a lower plate; 5. countersunk head screws; 6. A guide plate; 7. diamond-shaped teeth; 8. a sparkless coating; 9. a first guide groove; 10. a second guide groove; 11. and (4) a guide strip.

Detailed Description

The invention will be described in detail below with reference to an exemplary embodiment shown in the drawings:

as shown in fig. 1 to 3, the explosion-proof safety tongs for the smart elevator comprise an upper plate 1, a lower plate 4, a tong body 2 fixed between the upper plate 1 and the lower plate 4, a tong block 3 and a guide plate 6.

The clamp is characterized in that a first guide groove is formed in the side wall of the clamp body 2, the first guide groove is through from top to bottom and narrow in top to bottom, the clamp blocks 3 are slidably arranged in the first guide groove and symmetrically distributed in the guide groove, the two opposite surfaces of the clamp blocks 3 are clamping surfaces which are arranged in parallel, diamond-shaped teeth 7 are arranged on the clamping surfaces, and a non-spark coating 8 is arranged on the surfaces of the diamond-shaped teeth. The sparkless coating is an electroplated diamond coating. Two guide plates 6 are fixed on the side wall of the caliper body 2 and form a sliding space of the caliper block 3 in the first guide grooves respectively. The guide plate 6 is provided with a guide strip extending towards the direction of the first guide groove, the guide strip is obliquely arranged, a second guide groove matched with the guide strip is arranged on the side surface of the clamp block 3 facing the outer side of the first guide groove, and the guide strip is slidably connected into the second guide groove. The side face, opposite to the clamping face, of the clamp block 3 is a sliding face, and the sliding face on the same clamp block 3 is identical to the inclination angle of the second guide groove and is 6 degrees.

Fig. 4 shows that in the normal running state of the elevator, the safety gear runs up and down along the guide rail and keeps a working distance of 3 mm. The left and right clamp blocks 33 are in a non-contact state with a certain distance from both sides of the guide rail working surface. The most protruding part of the safety gear towards the well way direction is a countersunk head screw 55 used for fixing the guide plate 6 on the gear body 2, and a certain safety distance is kept between the countersunk head screw 55 and the bottom of the guide rail.

Fig. 5 shows the situation in which the block 33 of the safety gear moves upwards and thus securely grips the guide rail in an emergency braking situation of the elevator. When the elevator is overspeed and descends, the speed limiter lifting rod holds the clamp block 33 to keep the clamp block immovable in the elevator running direction, and other parts of the safety clamp relatively descend. The clamp blocks 33 go upwards in the inner grooves of the safety clamp bodies 22 with the inclination angle of 6 degrees, and the clamp blocks 3 on the two sides go upwards at the same time, so that the clamp blocks 3 are tightly clamped on the guide rails due to the narrow upper part and the wide lower part of the inner grooves of the safety clamp bodies 2, and the braking of the elevator car is realized.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof safety tongs for intelligence elevator which characterized in that: the safety tongs comprise an upper plate, a lower plate and a tong body fixed between the upper plate and the lower plate, wherein a first guide groove is formed in the side wall of the tong body, the first guide groove is vertically communicated and is narrow at the top and wide at the bottom, the safety tongs further comprise tong blocks which are slidably arranged in the first guide groove and symmetrically distributed in the guide groove, the opposite surfaces of the tong blocks are clamping surfaces, the clamping surfaces are arranged in parallel, and the clamping surfaces are respectively provided with a non-spark coating.

2. The intelligent explosion-proof safety tongs for elevators according to claim 1, characterized in that: the sparkless coating is an electroplated diamond coating.

3. The intelligent explosion-proof safety tongs for elevators according to claim 1, characterized in that: the safety tongs also comprise two guide plates which are fixed on the side wall of the tongs body and form the sliding space of the tongs block in the first guide groove respectively.

4. The intelligent explosion-proof safety tongs for elevators according to claim 3, characterized in that: the deflector has the orientation the gib block that first guide way direction extends, the gib block slope sets up, the tong block orientation be equipped with on the side in the first guide way outside in gib block assorted second guide way, gib block sliding connection in the second guide way.

5. The intelligent explosion-proof safety tongs for elevators according to claim 4, characterized in that: the side face, back to the clamping face, of the clamp block is a sliding face, and the sliding face on the same clamp block is identical to the inclination angle of the second guide groove.

6. The intelligent explosion-proof safety tongs for elevators according to claim 1, characterized in that: the clamping surface is provided with diamond-shaped teeth, and the sparkless coating is arranged on the surfaces of the diamond-shaped teeth.