Anti-falling safety protection device of elevator for instant manipulation of safety gear

Abstract

An elevator anti-falling safety protection device for instant operation of a safety gear, which is composed of an L-shaped sliding plate, an N-shaped lifting plate and a C-shaped sliding sleeve, the N-shaped lifting plate is provided with a suspension steel wire rope connecting hole at the top for connecting with the suspension steel wire rope, the lower end of the N-shaped lifting plate is fixedly connected with the C-shaped sliding sleeve, the L-shaped sliding plate is slidingly connected with the C-shaped sliding sleeve, the lower end of the L-shaped sliding plate extends out of the C-shaped sliding sleeve and is connected with the car, the L-shaped sliding plate, the N-shaped lifting plate and the C-shaped sliding sleeve are connected with the upper and lower suspension steel wire ropes and the car, so that the safety gear can be triggered to act when the suspension steel wire rope is broken, and the device is installed on the top of the car, so it is irrelevant to the elevator with or without a machine room, even for the elevator without a machine room, a top platform for installing a speed governor is not needed on the top of the shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevator safety technology, in particular to an elevator anti-falling safety protection device for instant operation of safety gear. BACKGROUND

[0002] In the installation process of the existing elevator, as shown in the drawings, the installation personnel install guide rails, landing doors and other components on the car without a speed governor - safety gear anti-falling device. Once the car suspension wire rope breaks, the car will fall freely and fall, resulting in injury and death of the installation personnel in the elevator car. Figure 1 Currently, during the installation process of the machine room elevator, the following speed governor needs to be installed on the machine room floor.

[0003] As shown, when the suspension elevator car wire rope breaks, the elevator car will fall at an acceleration of 9.8 m / s 2 When the speed of the speed governor installed on the machine room floor exceeds 1.25 times the rated speed of the elevator, the speed governor will clamp its wire rope, and the speed governor rope will pull the safety gear inclined wedge installed on the car. Under the action of the safety gear wedge and the safety gear seat, the car is clamped and stopped on the guide rail of the car. Figure 2 However, since there is no machine room, the speed governor is generally installed on the guide rail of the car at the top of the shaft. However, the installation of the car guide rail can only be butt jointed one by one from the bottom of the shaft, so it is not possible to install the speed governor. Therefore, a hoist is usually installed on the top of the car to drive the up and down movement of the car.

[0004] The hoist with a safety lock has a protection device to limit overspeed falling, but does not have the ability to protect the suspension rope from breaking. Figure 1 SUMMARY The technical problem to be solved by the present application is to provide an elevator anti-falling safety protection device for instant operation of safety gear, which realizes the protection of the falling of the elevator car after the suspension wire rope breaks.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is:

[0006]

[0007] ​The elevator anti-falling safety protection device for instant operation of safety tongs is composed of an L-shaped sliding plate 1, an N-shaped pull plate 2 and a C-shaped sliding sleeve 3. The L-shaped sliding plate 1 is in sliding contact with the N-shaped pull plate 2 and is limited by a sliding limiting waist-shaped hole 104 on the L-shaped sliding plate 1. A suspension steel wire rope connecting hole 203 is arranged above the N-shaped pull plate 2 for connecting with the suspension steel wire rope. The lower end of the N-shaped pull plate 2 is fixedly connected with the C-shaped sliding sleeve 3. The L-shaped sliding plate 1 is in sliding connection with the C-shaped sliding sleeve 3. The lower end of the L-shaped sliding plate 1 extends out of the C-shaped sliding sleeve 3 and is connected with the car. A tension spring set 6 is arranged between the top of the L-shaped sliding plate 1 and the bottom of the C-shaped sliding sleeve 3. A pull rope pipe 4 is fixedly connected with the top of the L-shaped sliding plate 1. A pull rope core 5 extends downward through the pull rope pipe 4 and is fixedly connected with the bottom of the C-shaped sliding sleeve 3.

[0008] The L-shaped sliding plate 1 is an inverted L-shaped plate body. The upper end of the inverted L-shaped plate body is a horizontal plate 101. A pull rope pipe fixing hole 102 is arranged at the front end of the horizontal plate 101 and is connected with the pull rope pipe 4. An N-shaped pull plate guide hole 103 is arranged behind the pull rope pipe fixing hole 102 and is in sliding contact with the N-shaped pull plate 2. First fixing holes 105 are arranged on both sides of the vertical plate body of the inverted L-shaped plate body and are connected with the tension spring set 6. The sliding limiting waist-shaped hole 104 is located on the vertical plate body of the plate body. A car fixing hole 106 is arranged at the lower end of the vertical plate body.

[0009] The N-shaped pull plate 2 includes two parallel vertical plate bodies, i.e. a guide plate 201 and a connecting plate 202. The upper ends of the guide plate 201 and the connecting plate 202 are fixedly connected and are provided with the suspension steel wire rope connecting hole 203. Limiting screw through holes 204 are arranged below the guide plate 201 and the connecting plate 202. The lower end of the guide plate 201 passes through the N-shaped pull plate guide hole 103 and is in sliding connection therewith.

[0010] The C-shaped sliding sleeve 3 includes a C-shaped sliding sleeve 301. The bottom end of the sliding sleeve 301 is provided with a bottom plate 302. The part of the bottom plate 302 in the sliding sleeve 301 is provided with an L-shaped sliding plate through hole 303. The lower end of the L-shaped sliding plate 1 passes through the L-shaped sliding plate through hole 303 and is in sliding contact therewith. The bottom plate 302 extends out of the C-shaped sliding sleeve 301 and is provided with a pull rope fixing hole 305. The position of the pull rope fixing hole 305 corresponds to that of the pull rope pipe fixing hole 102. The pull rope fixing hole 305 is fixedly connected with the pull rope core 5. A second fixing hole 304 is arranged on the inner wall of the sliding sleeve 301 at the bottom end. The second fixing hole 304 is connected with the lower end of the tension spring set 6.

[0011] The tension spring group 6 comprises a top fixed end 61 connected with the first fixed hole 105, a tension spring guide tube 63 connected with the lower end of the top fixed end 61, a tension spring arranged in the tension spring guide tube 63, a tension spring plunger 64 connected with the lower end of the tension spring, and a bottom fixed end 62 arranged at the lower end of the tension spring plunger 64 and connected with the second fixed hole 304.

[0012] The L-shaped slide plate 1 and the N-shaped pull plate 2 are limited by the limiting screw nut group 7 passing through the limiting waist-shaped hole 104 and the limiting screw hole 204.

[0013] The elevator anti-falling safety protection device provided by the application can trigger the safety clamp action when the suspension wire rope is broken, and the device is installed on the top of the car, so it is irrelevant to the installation of the elevator with or without a machine room, and even if it is a machine room elevator, it does not need to build a top platform for installing a speed limiter in the shaft. BRIEF DESCRIPTION OF DRAWINGS

[0014] The application will be further described below in combination with the drawings and examples:

[0015] Figure 1 The schematic diagram of the car without a speed limiter and a safety clamp;

[0016] Figure 2 The schematic diagram of the car with a speed limiter and a safety clamp;

[0017] Figure 3 The structural schematic diagram of the L-shaped slide plate of the application;

[0018] Figure 4 The structural schematic diagram of the N-shaped pull plate of the application;

[0019] Figure 5 The connection schematic diagram of the L-shaped slide plate and the N-shaped pull plate of the application;

[0020] Figure 6 The structural schematic diagram of the C-shaped slide sleeve of the application;

[0021] Figure 7 The assembly structural schematic diagram of the application;

[0022] Figure 8 The structural schematic diagram of the tension spring group of the application;

[0023] Figure 9 The working principle schematic diagram of the application.

[0024] Figure: L-shaped slide plate 1, horizontal plate 101, pull rope tube fixing hole 102, N-shaped pull plate guide hole 103, sliding limit waist-shaped hole 104, first fixing hole 105, car fixing hole 106, N-shaped pull plate 2, sliding guide plate 201, connecting plate 202, suspension steel wire rope connecting hole 203, limit screw through hole 204, C-shaped slide sleeve 3, slide sleeve 301, bottom plate 302, L-shaped slide plate through hole 303, second fixing hole 304, pull rope fixing hole 305, pull rope tube 4, pull rope core 5, tension spring group 6, top fixed end 61, bottom fixed end 62, tension spring guide pipe 63, tension spring plunger 64, limit screw nut group 7. DETAILED DESCRIPTION

[0025] As shown in Figures 3-7 Figure, an elevator anti-falling safety protection device for instant operation of safety clamps, the protection device is composed of L-shaped slide plate 1, N-shaped pull plate 2 and C-shaped slide sleeve 3, L-shaped slide plate 1 and N-shaped pull plate 2 are in sliding contact and are limited by sliding limit waist-shaped hole 104 on L-shaped slide plate 1, suspension steel wire rope connecting hole 203 is arranged above N-shaped pull plate 2 for connection with suspension steel wire rope, N-shaped pull plate 2 is fixedly connected with C-shaped slide sleeve 3 at lower end, L-shaped slide plate 1 is slidingly connected with C-shaped slide sleeve 3, L-shaped slide plate 1 extends out of C-shaped slide sleeve 3 at lower end and is connected with car, tension spring group 6 is arranged between top of L-shaped slide plate 1 and bottom of C-shaped slide sleeve 3, pull rope tube 4 is fixedly connected with L-shaped slide plate 1 at top, pull rope core 5 penetrates into pull rope tube 4 and extends downward and is fixedly connected with bottom of C-shaped slide sleeve 3.

[0026] As shown in Figure 9 Figure, sliding guide plate 201 is not shown for convenience of viewing, suspension steel wire rope connecting hole 203 on N-shaped pull plate 2 is connected with suspension steel wire rope, since N-shaped pull plate 2 is fixedly connected with C-shaped slide sleeve 3 at lower end, L-shaped slide plate 1 slides downward under the action of gravity of car and compresses tension spring group 6, and finally stops at the limit position at the end of sliding limit waist-shaped hole 104, when suspension steel wire rope on N-shaped pull plate 2 breaks or is separated from suspension steel wire rope connecting hole 203 due to other reasons, the pulling action of suspension steel wire rope on N-shaped pull plate 2 and C-shaped slide sleeve 3 disappears, tension spring group 6 is stretched, and the elastic force of tension spring group 6 acts on L-shaped slide plate 1 and C-shaped slide sleeve 3, since L-shaped slide plate 1 is fixedly connected with car at lower end, the elastic force makes C-shaped slide sleeve 3 and N-shaped pull plate 2 move downward along L-shaped slide plate 1, at this time, the position of L-shaped slide plate 1 does not change, the downward movement of C-shaped slide sleeve 3 drives pull rope core 5 to move downward relative to pull rope tube 4, the downward movement of pull rope core 5 can trigger safety clamps, the safety clamps stop the falling car on the guide rail of the car, and the protection of the falling car after the breakage of suspension steel wire rope is realized.

[0027] As shown in Figure 3As shown in the above, the L-shaped slide plate 1 is an inverted "L"-shaped plate body, the upper end of the inverted "L"-shaped plate body is a horizontal plate 101, the front end of the horizontal plate 101 is provided with a lifting rope tube fixing hole 102 connected with the lifting rope tube 4, the rear of the lifting rope tube fixing hole 102 is provided with an N-shaped lifting plate guide hole 103, the N-shaped lifting plate guide hole 103 is in sliding contact with the N-shaped lifting plate 2, the two sides of the vertical plate body of the inverted "L"-shaped plate body are provided with first fixing holes 105 connected with the tension spring set 6, a sliding limiting waist-shaped hole 104 is located on the vertical plate body of the plate body, and a car fixing hole 106 is located at the lower end of the vertical plate body.

[0028] As shown in the above, Figure 5 and 7 As shown in the above, it is a schematic diagram of the connection between the L-shaped slide plate 1 and the N-shaped lifting plate 2, for the convenience of viewing the connection structure, the plate body at the front end of the N-shaped lifting plate 2 is not shown, that is, the sliding guide plate 201 is not shown, the sliding range of the L-shaped slide plate 1 is limited within the range of the waist-shaped hole by connecting the screw with the nut after the screw passes through the sliding limiting waist-shaped hole 104, and the first fixing hole 105 is connected with the upper end of the tension spring set 6.

[0029] As shown in the above, Figure 4 As shown in the above, the N-shaped lifting plate 2 includes two parallel vertical plate bodies, that is, the guide plate 201 and the connecting plate 202, the upper end of the guide plate 201 and the connecting plate 202 is fixedly connected and provided with a hanging steel wire rope connecting hole 203, the lower part of the guide plate 201 and the connecting plate 202 is provided with a limiting screw through hole 204, the lower end of the guide plate 201 passes through the N-shaped lifting plate guide hole 103 and is in sliding connection therewith.

[0030] As shown in the above, Figure 5 As shown in the above, the limiting screw through hole 204 is used for penetrating the screw, and the guide plate 201 and the connecting plate 202 are the vertical plate body of the L-shaped slide plate 1.

[0031] As shown in the above, Figure 6 As shown in the above, the C-shaped sliding sleeve 3 includes a "C"-shaped sliding sleeve 301, the bottom end of the sliding sleeve 301 is provided with a bottom plate 302, the part of the bottom plate 302 in the sliding sleeve 301 is provided with an L-shaped slide plate through hole 303, the lower end of the L-shaped slide plate 1 passes through the L-shaped slide plate through hole 303 and is in sliding contact therewith, the bottom plate 302 extends out of the "C"-shaped sliding sleeve 301 and is provided with a lifting rope fixing hole 305, the position of the lifting rope fixing hole 305 corresponds to the position of the lifting rope tube fixing hole 102, the lifting rope fixing hole 305 is fixedly connected with the lifting rope core 5, and the inner wall of the sliding sleeve 301 is provided with a second fixing hole 304 at the bottom end, the second fixing hole 304 is connected with the lower end of the tension spring set 6.

[0032] As shown in the above, Figure 6 and 7As shown in the figure, the C-shaped sliding sleeve 301 facilitates the internal sliding of the L-shaped sliding plate 1, and the screw for limiting the L-shaped sliding plate 1 does not interfere with the sliding sleeve. The tension spring set 6 is connected between the L-shaped sliding plate 1 and the C-shaped sliding sleeve 3, so that they are affected by the elastic force. When the suspension steel wire rope acts, the spring is compressed. When the steel wire rope breaks, the elastic force causes the relative movement between them, so that the relative movement exists between the lifting rope core 5 and the lifting rope tube 4. One end of the lifting rope tube 4 is connected with the safety clamp, and the action of the lifting rope core 5 triggers the safety clamp, so that the safety clamp clamps tightly.

[0033] As shown in the figure, Figure 8 As shown in the figure, the tension spring set 6 includes a top fixed end 61 connected with the first fixed hole 105. The lower end of the top fixed end 61 is connected with a tension spring guide tube 63. The tension spring guide tube 63 is provided with a tension spring. The lower end of the tension spring is connected with a tension spring plunger 64. The lower end of the tension spring plunger 64 is provided with a bottom fixed end 62 connected with the second fixed hole 304.

[0034] As shown in the figure, Figure 7 As shown in the figure, the L-shaped sliding plate 1 and the N-shaped lifting plate 2 are limited by the limiting screw nut set 7 passing through the limiting waist-shaped hole 104 and the limiting screw perforation 204.

Claims

1. An elevator anti-fall safety protection device with an instant-operation safety clamp, characterized in that: The protective device consists of an L-shaped sliding plate (1), an N-shaped lifting plate (2), and a C-shaped sliding sleeve (3). The L-shaped sliding plate (1) slides in contact with the N-shaped lifting plate (2) and is limited by the sliding limiting waist-shaped hole (104) on the L-shaped sliding plate (1). The N-shaped lifting plate (2) has a suspension wire rope connection hole (203) above it for connecting with the suspension wire rope. The lower end of the N-shaped lifting plate (2) is fixedly connected to the C-shaped sliding sleeve (3). The L-shaped sliding plate (1) slides in connection with the C-shaped sliding sleeve (3). The lower end of the L-shaped sliding plate (1) extends out of the C-shaped sliding sleeve (3) and is connected to the car. A tension spring assembly (6) is provided between the top of the L-shaped sliding plate (1) and the bottom of the C-shaped sliding sleeve (3). The top of the L-shaped sliding plate (1) is fixedly connected to the lifting rope tube (4). The lifting rope core (5) passes through the lifting rope tube (4) and extends downward and is fixedly connected to the bottom of the C-shaped sliding sleeve (3). The L-shaped slide (1) is an inverted "L" shaped board body. The upper end of the inverted "L" shaped board body is a horizontal plate (101). The front end of the horizontal plate (101) is provided with a lifting rope tube fixing hole (102) connected to the lifting rope tube (4). The lifting rope tube fixing hole (102) is provided with an N-shaped lifting plate guide hole (103) behind it. The N-shaped lifting plate guide hole (103) slides in contact with the N-shaped lifting plate (2). The vertical plate body of the inverted "L" shaped board body is provided with a first fixing hole (105) connected to the tension spring group (6) on both sides. The sliding limit waist-shaped hole (104) is located on the vertical plate body of the board body. The lower end of the vertical plate body is provided with a car fixing hole (106). The N-type lifting plate (2) includes two parallel vertical plates: a guide plate (201) and a connecting plate (202). The upper ends of the guide plate (201) and the connecting plate (202) are fixedly connected and have a suspension wire rope connection hole (203). The lower ends of the guide plate (201) and the connecting plate (202) have a limit screw through hole (204). The lower end of the guide plate (201) passes through the guide hole (103) of the N-type lifting plate and is slidably connected to it.

2. The elevator anti-fall safety protection device with instant-operation safety clamp according to claim 1, characterized in that, The C-shaped sliding sleeve (3) includes a "C"-shaped sliding sleeve (301). The bottom end of the sliding sleeve (301) is provided with a base plate (302). The part of the base plate (302) inside the sliding sleeve (301) is provided with an L-shaped sliding plate through hole (303). The lower end of the L-shaped sliding plate (1) passes through the L-shaped sliding plate through hole (303) and slides in contact with it. The base plate (302) extends out of the "C"-shaped sliding sleeve (301) and is provided with a lifting rope fixing hole (305). The position of the lifting rope fixing hole (305) corresponds to the lifting rope tube fixing hole (102). The lifting rope fixing hole (305) is fixedly connected to the lifting rope core (5). The bottom end of the inner wall of the sliding sleeve (301) is provided with a second fixing hole (304). The second fixing hole (304) is connected to the lower end of the tension spring assembly (6).

3. The elevator anti-fall safety protection device with an instant-operation safety clamp according to claim 2, characterized in that, The tension spring assembly (6) includes a top fixing end (61) connected to the first fixing hole (105) at its top end, a tension spring guide tube (63) connected to the lower end of the top fixing end (61), a tension spring inside the tension spring guide tube (63), a tension spring plunger (64) connected to the lower end of the tension spring, and a bottom fixing end (62) connected to the second fixing hole (304) at the lower end of the tension spring plunger (64).

4. The elevator anti-fall safety protection device with instant-operation safety clamp according to claim 3, characterized in that, The L-shaped slide plate (1) and the N-shaped lifting plate (2) are limited by the limit screw and nut assembly (7) passing through the limit waist-shaped hole (104) and the limit screw through hole (204).

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