Elevator emergency braking device

Abstract

The utility model relates to the technical field of elevator safety, in particular to an elevator emergency braking device which comprises an elevator body, the two side surfaces of the elevator body are in sliding connection with guide rails, the two side surfaces of the elevator body are fixedly connected with a brake caliper and a fixing base, the two side surfaces of the brake caliper are in sliding connection with wedge blocks, and the surfaces of the wedge blocks are fixedly connected with ceramic pieces. The bottom end of the wedge block is fixedly connected with a limiting column, the surface of the limiting column is sleeved with a rubber sleeve, a round rod is fixed to the surface of the fixing base, and a check block is inserted into the surface of the round rod and extrudes the surface of the fixing plate; the device has the beneficial effects that the connecting rod and the wedge block are arranged, the ceramic piece is prevented from being blocked, the braking effect on the guide rail is improved, the limiting column and the rubber sleeve are arranged, automatic reset of the ceramic piece and the wedge block is achieved, the working efficiency of the braking device is improved, the telescopic check block is arranged, rapid disassembly and replacement between the fixing base and the fixing plate are achieved, and the practicability is high. And the connection between the fixing plate and the fixing seat is firmer.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator safety, in particular to an elevator emergency braking device. Background Art

[0002] Elevators have brought great convenience to people's travel and can be seen everywhere in life. When an elevator encounters an emergency, in order to prevent the people inside from being injured, an emergency braking device must be installed to facilitate emergency braking and ensure the safety of people.

[0003] In the prior art, the Chinese utility model patent with the authorization announcement number "CN219156221U" is specifically "an elevator emergency brake device". Its embodiment describes that "the emergency brake mechanism is started, the lifting motor is running, and the caliper is vertically lifted by the wire rope to move the caliper in the holder. When the caliper moves vertically, the ceramic plates can be brought close to each other, and the ceramic plates are pressed against the outer wall of the guide rail to clamp the guide rail to achieve braking", and the beneficial effect section of the specification records that "through the matching arrangement of the first fixing hole on the fixing seat and the second fixing hole on the elevator body, when the lifting motor needs to be repaired, the fixing pin is pulled away from the second fixing hole to compress the spring, which can be easily disassembled."

[0004] However, when the caliper is lifted vertically using the steel wire rope and the lifting motor in the lifting device, the contact area between the caliper and the holder is too large, and the caliper is easily stuck in the holder during the upward pulling process, resulting in the inability of the ceramic plate to tighten and clamp the guide rail. After the emergency braking is over, the caliper and the holder need to be manually reset and fixed with fixing pins and springs. The springs will deform and their elasticity will weaken when used for a long time, causing loosening or even falling off between the fixing seat and the fixing plate. Utility Model Content

[0005] The purpose of the utility model is to provide an elevator emergency brake device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator emergency braking device, comprising an elevator body, both side surfaces of the elevator body are slidably connected to the guide rails, both side surfaces of the elevator body are fixedly connected with brake calipers and fixed seats, both side surfaces of the brake calipers are slidably connected with wedges, the surface of the wedges is fixedly connected with a ceramic sheet, the bottom end of the wedge is fixedly connected with a limiting column, the surface of the limiting column is sleeved with a rubber sleeve, the surface of the fixed seat is fixed with a round rod, the surface of the round rod is plugged with a block, and the block is squeezed on the surface of the fixed plate.

[0007] Preferably, the brake caliper is a square plate structure, a trapezoidal groove is provided on the surface of the brake caliper, slider grooves are provided on both side surfaces of the trapezoidal groove, the slider grooves are "T"-shaped grooves, and sliders are slidably connected to the surfaces of the slider grooves.

[0008] Preferably, the slider is a "convex" block structure, the slider is fixedly connected to one end of the wedge block provided with an inclined surface, the top ends of the two wedge blocks are fixedly connected with a connecting rod, the connecting rod is a "T"-shaped circular plate structure, the connecting rod is slidably connected in a groove opened on the surface of the connecting plate, the surface of the connecting plate is fixedly connected to one end of the lifting device, and the other end of the lifting device is fixedly connected to the surface of the fixed plate.

[0009] Preferably, support plates are fixedly connected to both sides of the bottom surface of the brake caliper, the support plates are square plate-shaped structures, the surface of the support plates is provided with limiting grooves, the surface of the limiting grooves is penetrated by limiting columns, and the limiting columns are circular plate-shaped structures with a "T"-shaped cross-section.

[0010] Preferably, the rubber sleeve is in a circular ring structure, and the outer diameter of the rubber sleeve is larger than the groove width of the pulling device.

[0011] Preferably, the fixing plate is a square plate-like structure, a round rod groove is provided on the surface of the fixing plate, the round rod groove is passed through by the round rod, a block groove is provided on the surface of one end of the round rod away from the fixing seat, a rubber strip is fixedly connected to the center position of the block groove, both ends of the rubber strip are fixedly connected to the surface of the block, the block is a square block-like structure, and an inclined surface is provided on the surface of one end of the block away from the rubber strip.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The elevator emergency brake device proposed by the utility model is provided with a connecting rod and a wedge block to avoid the phenomenon of the ceramic plate being stuck, thereby improving the braking effect on the guide rail, and a limit column and a rubber sleeve are provided to achieve automatic resetting of the ceramic plate and the wedge block, thereby improving the working efficiency of the brake device, and a retractable stop block is provided to achieve rapid disassembly and replacement between the fixed seat and the fixed plate, thereby making the connection between the fixed plate and the fixed seat tighter. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a half-section schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a partial schematic diagram of the structure of the utility model;

[0017] Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle;

[0018] Figure 5 It is a half-section schematic diagram of the brake mechanism structure of the utility model.

[0019] In the figure: 1. elevator body; 2. guide rail; 3. slider groove; 4. slider; 5. brake caliper; 6. fixed seat; 7. limit column; 8. rubber sleeve; 9. ceramic sheet; 10. wedge block; 11. fixed plate; 12. round rod; 13. round rod groove; 14. rubber strip; 15. stopper; 16. stopper groove; 17. connecting plate; 18. connecting rod; 19. lifting device; 20. support plate; 21. limit groove. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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.

[0021] Embodiment 1

[0022] See also Figure 1 to Figure 2 The utility model provides a technical solution: an elevator emergency brake device, including an elevator body 1, the two side surfaces of the elevator body 1 are slidably connected with the guide rail 2, the two side surfaces of the elevator body 1 are fixedly connected with brake calipers 5 and fixed seats 6, the two side surfaces of the brake calipers 5 are slidably connected with wedges 10, the surface of the wedge 10 is fixedly connected with a ceramic sheet 9, the bottom end of the wedge 10 is fixedly connected with a limiting column 7, the surface of the limiting column 7 is sleeved with a rubber sleeve 8, the surface of the fixing seat 6 is fixed with a round rod 12, the surface of the round rod 12 is plugged with a stopper 15, the stopper 15 is squeezed on the surface of the fixing plate 11, a connecting rod 18 and a wedge 10 are provided, so as to avoid the phenomenon of the ceramic sheet 9 being stuck, thereby improving the braking effect on the guide rail 2, the limiting column 7 and the rubber sleeve 8 are provided, so as to realize the automatic resetting of the ceramic sheet 9 and the wedge 10, and improve the working efficiency of the braking device, and the retractable stopper 15 is provided, so as to realize the rapid disassembly and replacement between the fixing seat 6 and the fixing plate 11, so as to make the connection between the fixing plate 11 and the fixing seat 6 more tight.

[0023] Embodiment 2

[0024] See also Figure 3On the basis of the first embodiment, in order to achieve the clamping of the guide rail 2 and the restoration of the wedge block 10 to its original state after use, the brake caliper 5 is in a square plate-like structure, a trapezoidal groove is provided on the surface of the brake caliper 5, and slider grooves 3 are provided on the two side surfaces of the trapezoidal groove. The slider groove 3 is a "T"-shaped groove, and a slider 4 is slidably connected to the surface of the slider groove 3. The slider 4 is a "convex" block structure, and the slider 4 is fixedly connected to one end of the wedge block 10 with an inclined surface. The top ends of the two wedge blocks 10 are fixedly connected with a connecting rod 18, and the connecting rod 18 is a "T"-shaped circular plate structure. The connecting rod 18 is slidably connected to the notch provided on the surface of the connecting plate 17. The surface of the connecting plate 17 is fixedly connected to one end of the pulling device 19, and the other end of the pulling device 19 is fixedly connected to the surface of the fixed plate 11.

[0025] Insert the connecting rod 18 into the groove on the surface of the connecting plate 17. When the steel wire rope on the pulling device 19 pulls the connecting plate 17, the two connecting rods 18 move toward each other from both ends, and the connecting plate 17 drives the wedge block 10 and the ceramic plate 9 to move upward, reducing the distance between them, thereby clamping and fixing the guide rail 2.

[0026] Embodiment 3

[0027] See also Figures 4 to 5 On the basis of the second embodiment, in order to realize the fixed connection between the fixed seat 6 and the fixed plate 11, the bottom end surface of the brake caliper 5 is fixedly connected with a support plate 20 on both sides. The support plate 20 is a square plate-shaped structure. The surface of the support plate 20 is provided with a limiting groove 21. The surface of the limiting groove 21 is passed through by the limiting column 7. The limiting column 7 is a circular plate-shaped structure with a "T"-shaped cross-section. The rubber sleeve 8 is a circular ring structure, and the outer diameter of the rubber sleeve 8 is greater than the groove width of the pulling device 19. The fixing plate 11 is a square plate-shaped structure. The surface of the fixing plate 11 is provided with a round rod groove 13. The round rod groove 13 is passed through by the round rod 12. The end surface of the round rod 12 away from the fixing seat 6 is provided with a block groove 16. The center position of the block groove 16 is fixedly connected with a rubber strip 14. The two ends of the rubber strip 14 are fixedly connected to the surface of the block 15. The block 15 is a square block structure, and the end surface of the block 15 away from the rubber strip 14 is provided with an inclined surface.

[0028] A rubber sleeve 8 is sleeved on the surface of the limit column 7. When the wedge block 10 moves upward, the limit column 7 is also driven to move upward. One end of the rubber sleeve 8 is squeezed by the support plate 20 and is in a compressed force storage state. When the emergency braking is over, the rubber sleeve 8 recovers from the compressed state and drives the limit column 7 to move downward. The limit column 7 drives the wedge block 10 and the ceramic sheet 9 to recover their initial positions. One end of the stopper 15 is provided with an inclined surface. When the stopper 15 passes through the surface of the round rod groove 13, the stopper 15 is pushed into the stopper groove 16 by force. When the stopper 15 passes out, the rubber strip 14 recovers to its original state, so that the stopper 15 pops out and is squeezed on the surface of the fixed plate 11.

[0029] In actual use, when the elevator body 1 fails, the emergency brake mechanism is activated to drive the lifting device 19 to operate. The lifting device 19 includes a motor and a wire rope. The wire rope pulls the connecting plate 17, and the connecting plate 17 drives the wedge block 10 to move upward. The ceramic pieces 9 on the surfaces of the wedge blocks 10 on both sides move upward, and the spacing becomes smaller, thereby clamping and braking the guide rail 2. At this time, the limit column 7 moves upward along the limit groove 21, and the rubber sleeve 8 is in a compressed state. When the elevator body 1 fails and the emergency brake mechanism is activated, the lifting device 19 is driven to operate. After the position is closed, the rubber sleeve 8 rebounds from the compressed state, so that the limit column 7 moves downward along the limit groove 21, and the limit column 7 drives the wedge block 10 and the ceramic plate 9 to return to the initial state. When the motor device inside the fixing seat 6 needs to be repaired or replaced, the block 15 on both sides is pressed by hand, and the block 15 shrinks into the block groove 16, and the fixing plate 11 and the fixing seat 6 are separated. After the replacement is completed, the round rod 12 is reinserted into the round rod groove 13, and the block 15 passes through the round rod groove 13 and is squeezed on the surface of the fixing plate 11.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator emergency brake device, comprising an elevator body (1), both side surfaces of the elevator body (1) being slidably connected to guide rails (2), and both side surfaces of the elevator body (1) being fixedly connected to brake calipers (5) and fixed seats (6), characterized in that: The surfaces of both sides of the brake caliper (5) are slidably connected with wedge blocks (10), the surfaces of the wedge blocks (10) are fixedly connected with ceramic plates (9), the bottom ends of the wedge blocks (10) are fixedly connected with limit posts (7), the surfaces of the limit posts (7) are sleeved with rubber sleeves (8), the surfaces of the fixing seats (6) are fixed with round rods (12), the surfaces of the round rods (12) are plugged with stop blocks (15), and the stop blocks (15) are pressed against the surface of the fixing plates (11).

2. An elevator emergency brake device according to claim 1, characterized in that: The brake caliper (5) is in a square plate-like structure. A trapezoidal groove is provided on the surface of the brake caliper (5). Slider grooves (3) are provided on the surfaces of both sides of the trapezoidal groove. The slider grooves (3) are in a T-shaped groove. The surfaces of the slider grooves (3) are slidably connected to sliders (4).

3. An elevator emergency brake device according to claim 2, characterized in that: The slider (4) is a convex block structure. The slider (4) is fixedly connected to one end of the wedge block (10) provided with an inclined surface. The top ends of the two wedge blocks (10) are fixedly connected to a connecting rod (18). The connecting rod (18) is a T-shaped circular plate structure. The connecting rod (18) is slidably connected to a groove provided on the surface of the connecting plate (17). The surface of the connecting plate (17) is fixedly connected to one end of the lifting device (19). The other end of the lifting device (19) is fixedly connected to the surface of the fixed plate (11).

4. An elevator emergency brake device according to claim 1, characterized in that: Support plates (20) are fixedly connected to both sides of the bottom surface of the brake caliper (5); the support plate (20) is a square plate-shaped structure; a limiting groove (21) is provided on the surface of the support plate (20); a limiting column (7) passes through the surface of the limiting groove (21); and the limiting column (7) is a circular plate-shaped structure with a "T"-shaped cross section.

5. An elevator emergency brake device according to claim 1, characterized in that: The rubber sleeve (8) is in a circular ring structure, and the outer diameter of the rubber sleeve (8) is greater than the groove width of the pulling device (19).

6. An elevator emergency brake device according to claim 1, characterized in that: The fixing plate (11) is in a square plate-like structure. A round rod groove (13) is provided on the surface of the fixing plate (11). The round rod (12) passes through the round rod groove (13). A stopper groove (16) is provided on the surface of one end of the round rod (12) away from the fixing seat (6). A rubber strip (14) is fixedly connected to the center of the stopper groove (16). Both ends of the rubber strip (14) are fixedly connected to the surface of a stopper (15). The stopper (15) is in a square block-like structure. An inclined surface is provided on the surface of one end of the stopper (15) away from the rubber strip (14).

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