Elevator safety tongs and elevator
阅读说明:本技术 电梯安全钳及电梯 (Elevator safety tongs and elevator ) 是由 王鸿云 毕峰瑞 张永炬 于 2020-07-20 设计创作,主要内容包括:本发明公开了电梯安全钳,包括提拉杆、主钳体和副钳体,主钳体设置在副钳体上方,主钳体内设有两块主楔块,每块主楔块均与一根提拉杆相连,副钳体内设有两块副楔块;主楔块内开有主容纳槽,主容纳槽开口朝向导轨,主容纳槽内设有滚轮,滚轮部分伸出主容纳槽,滚轮上绕有牵引绳,主楔块上开有朝向对应副楔块的通孔,每块主楔块的牵引绳的头部穿过通孔固定安装在对应的副楔块上。一种电梯,采用上述电梯安全钳。本发明的优点是:在主钳体失效的情况下会自动启动副钳体产生制动力,提高了安全系数。电梯采用上述结构后,相对于普通电梯在失效时有了双重保障,确保轿厢安全。(The invention discloses an elevator safety gear, which comprises a lifting rod, a main gear body and an auxiliary gear body, wherein the main gear body is arranged above the auxiliary gear body, two main wedge blocks are arranged in the main gear body, each main wedge block is connected with one lifting rod, and two auxiliary wedge blocks are arranged in the auxiliary gear body; the main wedge block is internally provided with a main containing groove, the opening of the main containing groove faces the guide rail, the main containing groove is internally provided with a roller, the roller part extends out of the main containing groove, the roller is wound with a traction rope, the main wedge block is provided with a through hole facing the corresponding auxiliary wedge block, and the head of the traction rope of each main wedge block passes through the through hole and is fixedly installed on the corresponding auxiliary wedge block. An elevator adopts above-mentioned elevator safety tongs. The invention has the advantages that: the auxiliary clamp body can be automatically started to generate braking force under the condition that the main clamp body fails, and the safety coefficient is improved. After the elevator adopts above-mentioned structure, for ordinary elevator dual guarantee has been had occasionally in the inefficacy, ensure car safety.)
1. Elevator safety tongs, its characterized in that: the clamp comprises a lifting rod (1), a main clamp body (2) and an auxiliary clamp body (3), wherein the main clamp body (2) is arranged above the auxiliary clamp body (3), two main wedge blocks (5) which move upwards along the vertical direction under the action of the lifting rod (1) and mutually approach to a clamping guide rail (4) are arranged in the main clamp body (2), each main wedge block (5) is connected with one lifting rod (1), and two auxiliary wedge blocks (6) which move upwards along the vertical direction and mutually approach to the clamping guide rail (4) are arranged in the auxiliary clamp body (3);
it has main holding tank (20) to open in main voussoir (5), main holding tank (20) opening is towards guide rail (4), be equipped with gyro wheel (21) in the main holding tank, the gyro wheel part stretches out main holding tank, around haulage rope (22) on gyro wheel (21), it has through-hole (23) that the orientation corresponds vice voussoir to open on the main voussoir, every main voussoir (5) the head of haulage rope (22) passes through-hole fixed mounting is on vice voussoir (6) that correspond.
2. An elevator safety gear according to claim 1, characterized in that: the main clamp body (2) and the auxiliary clamp body (3) are integrally arranged; or the main clamp body (2) and the auxiliary clamp body (3) are fixedly connected through bolts.
3. An elevator safety gear according to claim 1, characterized in that: be equipped with main cavity room (7) in the main tong body (2), the inside wall of main cavity room (7) is from supreme being close to formation main spigot surface (8) to main cavity room (7) middle part gradually down, be equipped with two in main cavity room (7) main voussoir (5), two leave the clearance that lets guide rail (4) pass through between main voussoir (5), two main voussoir (5) all are equipped with main wedge inclined plane (9) with main spigot surface (8) looks adaptation.
4. An elevator safety gear according to claim 3, characterized in that: the surface of the main wedge block (5) opposite to the guide rail (4) is a plane.
5. An elevator safety gear according to claim 1, characterized in that: be equipped with vice cavity (10) in vice pincers body (3), the inside wall of vice cavity (10) is close to formation vice spigot surface (11) from supreme down to vice cavity (10) middle part gradually, be equipped with two in vice cavity (10) vice voussoir (6), two also leave the clearance that lets guide rail (4) pass through between vice voussoir (6), two vice voussoir (6) all are equipped with vice wedge inclined plane (12) with vice spigot surface (11) looks adaptation.
6. An elevator safety gear according to claim 5, characterized in that: the surface of the auxiliary wedge block (6) opposite to the guide rail (4) is a plane.
7. An elevator safety gear according to claim 1, characterized in that: the lifting rod (1) is fixedly connected with the top of the corresponding main wedge block (5).
8. An elevator safety gear according to claim 5, characterized in that: the side surface of the auxiliary chamber is opened, and the side surface of the auxiliary clamp body is provided with a baffle plate (28) for closing the opening.
9. An elevator safety gear according to claim 1, characterized in that: the roller (21) comprises a wheel shaft (29), a rope winder (30) and two rubber wheels (31), the wheel shaft (29) is rotatably connected to a main wedge block, the rope winder (30) is sleeved on the wheel shaft (29), the traction rope (22) is wound on the rope winder (30), and the two rubber wheels (31) are respectively fixed at two ends of the rope winder (30).
10. An elevator characterized in that: use of an elevator safety gear according to any of claims 1 to 9.
Technical Field
The invention relates to an elevator safety gear and an elevator.
Background
The elevator is the transportation equipment that people are commonly used, and high-rise building all uses car elevator especially, and current car elevator all is equipped with safety tongs, but a guide rail generally corresponds and sets up a safety tongs, and when the elevator dropped down suddenly, the safety tongs can be drawn close each other and press from both sides tight guide rail, plays emergency braking's effect, nevertheless because only a safety tongs, in case can produce very big threat to the life of the person of taking in the elevator in failure.
Disclosure of Invention
The invention aims to provide an elevator safety gear and an elevator, and can effectively solve the problem that the existing elevator only has one pair of safety gears and the safety coefficient is not enough.
In order to solve the technical problems, the invention is realized by the following technical scheme: the elevator safety tongs comprise a lifting rod, a main tong body and an auxiliary tong body, wherein the main tong body is arranged above the auxiliary tong body, two main wedge blocks which move upwards along the vertical direction under the action of the lifting rod and mutually approach to a clamping guide rail are arranged in the main tong body, each main wedge block is connected with one lifting rod, and two auxiliary wedge blocks which move upwards along the vertical direction and mutually approach to the clamping guide rail are arranged in the auxiliary tong body;
it has main holding tank to open in the main voussoir, main holding tank opening is towards the guide rail, be equipped with the gyro wheel in the main holding tank, the gyro wheel part stretches out main holding tank, around having the haulage rope on the gyro wheel, it has the through-hole that the orientation corresponds vice voussoir to open on the main voussoir, every main voussoir the head of haulage rope passes through-hole fixed mounting is on the vice voussoir that corresponds.
Preferably, the main clamp body and the auxiliary clamp body are integrally arranged; or the main clamp body and the auxiliary clamp body are fixedly connected through bolts. The integrally arranged main clamp body and the auxiliary clamp body have good rigidity and connection stability, and the safety is higher; the split main clamp body and the split auxiliary clamp body are suitable for improving the existing equipment, the maintenance cost can be reduced, and the main clamp body or the auxiliary clamp body with a fault can be independently replaced.
Preferably, the internal main cavity room that is equipped with of main tong, the inside wall of main cavity room is close to the main cavity middle part from supreme down gradually and forms main spigot surface, be equipped with two in the main cavity room main voussoir, two leave the clearance that lets the guide rail pass through between the main voussoir, two main voussoir all is equipped with the main wedge inclined plane with main spigot surface looks adaptation. When the main wedge block moves under the action of upward force, the main guide surface is contacted with the inclined surface of the main wedge block, and the two main wedge blocks are extruded towards the middle to be close to each other and tightly hold the guide rail for braking.
Preferably, the surface of the main wedge opposite to the guide rail is a plane. The plane is easy to process, is beneficial to reducing the production cost and is convenient to install.
Preferably, the auxiliary clamp body is internally provided with an auxiliary cavity, the inner side wall of the auxiliary cavity is gradually close to the middle part of the auxiliary cavity from bottom to top to form an auxiliary guide surface, two auxiliary wedge blocks are arranged in the auxiliary cavity, a gap for the guide rail to pass through is also reserved between the two auxiliary wedge blocks, and the two auxiliary wedge blocks are both provided with auxiliary wedge inclined surfaces matched with the auxiliary guide surfaces. When the auxiliary wedge block moves upwards under the action of the main wedge block, the auxiliary guide surface contacts with the inclined surface of the auxiliary wedge block to extrude the two auxiliary wedge blocks towards the middle, so that the two auxiliary wedge blocks are close to each other to hold the guide rail tightly for braking.
Preferably, the surface of the auxiliary wedge block opposite to the guide rail is a plane.
Preferably, the lifting rod is fixedly connected with the top of the corresponding main wedge block. The lifting rod generates upward pulling force to pull the main wedge blocks to close.
Preferably, the side surface of the auxiliary chamber is open, and a baffle plate for closing the opening is arranged on the side surface of the auxiliary clamp body. The side opening, the convenience is inserted the fixed pin in the fixed orifices.
Preferably, the idler wheel comprises a wheel shaft, a rope winder and two rubber wheels, the wheel shaft is rotatably connected to the main wedge block, the rope winder is sleeved on the wheel shaft, the traction rope is wound on the rope winder, and the two rubber wheels are respectively fixed at two ends of the rope winder. Through the ropewinder, conveniently accomodate the haulage rope, fix the rubber tyer at the both ends of ropewinder simultaneously, prevent ropewinder and guide rail bump.
An elevator adopts above-mentioned elevator safety tongs.
Compared with the prior art, the invention has the advantages that: through setting up vice pincers body, when main pincers body became invalid, the gyro wheel will continue to rotate with the guide rail contact to begin the rolling haulage rope, the haulage rope will stimulate vice voussoir upward movement, and the interval between two vice voussoirs reduces and embraces the guide rail tightly, produces the braking force, stops the car, and this device can the automatic start vice pincers body production braking force under the condition that main pincers body became invalid, has improved factor of safety. After the elevator adopts above-mentioned structure, for ordinary elevator dual guarantee has been had occasionally in the inefficacy, ensure car safety.
Drawings
Fig. 1 is a view showing the construction of an elevator safety gear according to the present invention;
FIG. 2 is a schematic view of the structure A-A in FIG. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Referring to fig. 1 and 2, the embodiment of the elevator safety gear of the invention is shown, the elevator safety gear comprises a
it has
Through setting up vice pincers bodies, when main pincers body became invalid, the gyro wheel will continue to rotate with the guide rail contact to begin the
Generally, it is preferable that the
To the structure of the
Similarly, the structure of the
In the design, the
The side of the auxiliary chamber is open, the side of the auxiliary clamp body is provided with a
Because the
The invention also discloses an elevator, and the elevator safety gear adopting the technical scheme.
When the safety device is used, the
The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.
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