Safety tongs linkage braking structure of goods elevator

Abstract

The utility model discloses a safety tongs linkage braking structure of a goods elevator, which belongs to the technical field of goods elevators and comprises a lift car, a braking component is arranged at the upper end of the lift car, a guide rail is connected to the side edge of the braking component, a switch control component is arranged on one side of the upper end of the lift car, and a storage battery box is arranged on the other side of the upper end of the lift car. A brake assembly is arranged, a double-end motor rotates to drive a lead screw to rotate, the lead screw drives a push rod to move in a liquid storage box, a piston plate is pushed, hydraulic oil in the liquid storage box is conveyed and squeezed into a sleeve through a conveying pipe, the hydraulic oil pushes a hydraulic rod to move upwards, and the hydraulic rod pushes a trapezoidal block to move; the two trapezoidal blocks are matched to clamp the guide rail, so that the goods elevator is braked, the structure is simple, and braking is firm.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the freight elevator technical field, concretely relates to a safety tong linkage brake structure of freight elevator. BACKGROUND

[0002] The elevator brake device and buffer device in the prior art are mostly to prevent the elevator from falling rapidly, and in the case that the car weight is lighter than the counterweight weight, if the elevator fails, the car rises rapidly, the protection measure is insufficient when the elevator rises rapidly, and the buffer effect on the car in the elevator is poor, which can easily cause casualties.

[0003] The safety tong linkage brake structure of the existing freight elevator has the following problems in use: the brake structure is simple, the braking effect is poor, use is troublesome, and the switch control structure is single, affecting use. UTILITY MODEL CONTENT

[0004] To solve the problems in the above background art, the utility model provides a safety tong linkage brake structure of freight elevator, which has the characteristics of good braking effect and stable switch control.

[0005] To achieve the above object, the utility model provides the following technical scheme: a safety tong linkage brake structure of freight elevator, comprising a car, a brake assembly is arranged at the upper end of the car, a guide rail is connected to the side of the brake assembly, a switch control assembly is arranged at one side of the upper end of the car, a battery box is arranged at the other side of the upper end of the car, and a control box is arranged at the upper end of the battery box.

[0006] Preferably, the brake assembly comprises a driving assembly, a liquid storage box, a piston plate, a conveying pipe, a hydraulic rod, a trapezoidal block, a mounting box, a sleeve and a return spring one, wherein the middle of the upper end of the car is provided with the driving assembly, the two sides of the driving assembly are connected with the liquid storage box, the inside of the liquid storage box is provided with the piston plate, the two sides of the car are connected with the mounting box, the trapezoidal block is arranged in the trapezoidal groove in the inside of the mounting box, the lower end of the trapezoidal block is connected with the hydraulic rod, the surface of the hydraulic rod is provided with the return spring one, the lower end of the trapezoidal block is provided with the sleeve, and the conveying pipe is connected between the side of the liquid storage box and the sleeve.

[0007] Preferably, the driving assembly comprises a double-head motor, a connecting flange, a lead screw and a push rod, wherein the middle of the upper end of the car is provided with the double-head motor, the rotating shaft of the double-head motor is connected with the lead screw, the lead screw and the rotating shaft of the double-head motor are connected through the connecting flange, and the surface of the lead screw is provided with the push rod.

[0008] Preferably, the push rod is slidably connected with the liquid storage box, and the outer surface of the push rod is in a rectangular structure.

[0009] Preferably, the switch control assembly comprises a pull rope, a tension sensor, a connecting rod, a reset spring two, a switch button, a pressing block and a limiting frame, the upper end side of the car is provided with the limiting frame, the middle of the limiting frame is slidably connected with the connecting rod, the two ends of the connecting rod are connected with the tension sensor, the upper end of the tension sensor is connected with the pull rope, the lower end sides of the connecting rod are provided with the pressing block, the upper end of the car is provided below the pressing block with the switch button, and the bottom middle of the connecting rod is connected with the reset spring two between the car.

[0010] Preferably, the pull rope is connected with a steel wire rope fixed to the car, the reset spring two is in a stretched state, and the pressing block does not contact the switch button.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The utility model discloses a brake assembly, and the double -end motor rotates and drives the screw rod to rotate, and the screw rod drives the push rod to move in the liquid storage box, and the piston plate pushes away, and the hydraulic oil in the liquid storage box is sent and extruded into the sleeve through the conveying pipe, and the hydraulic oil pushes the hydraulic pole and moves up, and the hydraulic pole pushes the trapezoidal block and moves, and two groups of trapezoidal blocks cooperate and clamping hold the guide rail, so that the goods elevator is braked, and the structure is simple, and the braking is firm.

[0013] 2、The utility model discloses a switch control assembly, and the steel wire rope of the car is broken, so that the tension sensor connected with the pull rope changes the tension, the tension sensor sends the pressure change signal, the reset spring two shrinks and makes the connecting rod move down, the pressing block moves down and presses the switch button, the signal control of switch button and tension sensor is passed to make the brake assembly work, and the switch control is stable, and the mistaken touch is avoided. ACCURACY OF DRAWINGS

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

[0015] Figure 2 It is the brake assembly structural schematic diagram of the utility model;

[0016] Figure 3 It is the inside structure schematic diagram of the utility model's installation box;

[0017] Figure 4 It is the drive assembly structural schematic diagram of the utility model;

[0018] Figure 5 It is the switch control assembly structural schematic diagram of the utility model;

[0019] In the figure: 1, car; 2, guide rail; 3, brake assembly; 31, drive assembly; 311, double-head motor; 312, connecting flange; 313, screw rod; 314, push rod; 32, liquid storage box; 33, piston plate; 34, conveying pipe; 35, hydraulic rod; 36, trapezoidal block; 37, mounting box; 38, sleeve; 39, reset spring I; 4, switch control assembly; 41, pull rope; 42, tension sensor; 43, connecting rod; 44, reset spring II; 45, switch button; 46, pressing block; 47, limiting frame; 5, battery box; 6, control box. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] Please refer to Figures 1-5 The utility model provides the following technical scheme: a safety clamp linkage braking structure of a freight elevator, including car 1, the upper end of car 1 is provided with brake assembly 3, the side of brake assembly 3 is connected with guide rail 2, the upper end of car 1 one side is provided with switch control assembly 4, the upper end of car 1 other side is provided with battery box 5, the upper end of battery box 5 is provided with control box 6.

[0023] Specifically, brake assembly 3 includes drive assembly 31, liquid storage box 32, piston plate 33, conveying pipe 34, hydraulic rod 35, trapezoidal block 36, mounting box 37, sleeve 38 and reset spring I 39, wherein, the upper end of car 1 is provided with drive assembly 31 in the middle, the two sides of drive assembly 31 are connected with liquid storage box 32, the inside of liquid storage box 32 is provided with piston plate 33, the two sides of car 1 are connected with mounting box 37, the inside trapezoidal groove of mounting box 37 is provided with trapezoidal block 36, the lower end of trapezoidal block 36 is connected with hydraulic rod 35, the surface of hydraulic rod 35 is provided with reset spring I 39, the lower end of trapezoidal block 36 is provided with sleeve 38, conveying pipe 34 is connected between the side of liquid storage box 32 and sleeve 38.

[0024] Through adopting the above technical scheme, drive assembly 31 moves in liquid storage box 32, piston plate 33 is pushed to move, liquid storage box 32 inside hydraulic oil is conveyed and extruded into sleeve 38 through conveying pipe 34, hydraulic oil pushes hydraulic rod 35 to move upwards, hydraulic rod 35 pushes trapezoidal block 36 to move, two sets of trapezoidal blocks 36 cooperate to clamp guide rail 2, so that the freight elevator is braked, and the structure is simple and the braking is reliable.

[0025] Specifically, the driving assembly 31 comprises a double-head motor 311, a connecting flange 312, a lead screw 313 and a push rod 314, wherein the double-head motor 311 is arranged in the middle of the upper end of the car 1, the rotating shaft of the double-head motor 311 is connected with the lead screw 313, the lead screw 313 is connected with the rotating shaft of the double-head motor 311 through the connecting flange 312, and the surface of the lead screw 313 is provided with the push rod 314.

[0026] Through the above technical scheme, the double-head motor 311 drives the lead screw 313 to rotate, the lead screw 313 drives the push rod 314 to move in the liquid storage box 32, and the piston plate 33 is pushed.

[0027] Specifically, the push rod 314 is in sliding connection with the liquid storage box 32, and the outer surface of the push rod 314 is in a rectangular structure.

[0028] Through the above technical scheme, the lead screw 313 drives the push rod 314 to move in the liquid storage box 32, and the piston plate 33 is pushed.

[0029] When the embodiment is used, the switch control assembly 4 opens the switch, the control box 6 controls the braking assembly 3 to work, the battery box 5 supplies power, the double-head motor 311 drives the lead screw 313 to rotate, the lead screw 313 drives the push rod 314 to move in the liquid storage box 32, and the piston plate 33 is pushed, so that the hydraulic oil in the liquid storage box 32 is conveyed through the conveying pipe 34 and extruded into the sleeve 38, the hydraulic oil drives the hydraulic rod 35 to move upwards, the hydraulic rod 35 drives the trapezoidal blocks 36 to move, and the two groups of trapezoidal blocks 36 cooperate to clamp the guide rails 2, so that the goods elevator is braked, the structure is simple, and the braking is reliable.

[0030] Embodiment 2

[0031] The difference between the embodiment and the embodiment 1 is that the switch control assembly 4 comprises a pull rope 41, a tension sensor 42, a connecting rod 43, a second reset spring 44, a switch button 45, a pressing block 46 and a limiting frame 47, wherein the limiting frame 47 is arranged on the side edge of the upper end of the car 1, the connecting rod 43 is in sliding connection with the middle of the limiting frame 47, the two ends of the connecting rod 43 are connected with the tension sensor 42, the upper end of the tension sensor 42 is connected with the pull rope 41, the lower ends of the connecting rod 43 are provided with the pressing blocks 46, the upper end of the car 1 is provided below the pressing blocks 46 with the switch button 45, and the bottom middle of the connecting rod 43 is connected with the second reset spring 44 between the car 1.

[0032] Through the above technical scheme, when the steel wire rope of the car 1 is broken, the tension of the tension sensor 42 connected with the pull rope 41 changes, the tension sensor 42 sends a pressure change signal, the second reset spring 44 is contracted to make the connecting rod 43 move downwards, the pressing blocks 46 move downwards to press the switch button 45, and through the signal control of the switch button 45 and the tension sensor 42, the braking assembly 3 works, the switch control is stable, and the mistaken touch is avoided.

[0033] Specifically, the pull rope 41 is connected with the steel wire fixed with the car 1, the reset spring two 44 is in the stretching state, and the pressing block 46 is not in contact with the switch button 45.

[0034] By adopting the technical scheme, when the steel wire of the car 1 is broken, the tension of the tension sensor 42 connected with the pull rope 41 changes, the tension sensor 42 sends a pressure change signal, the reset spring two 44 shrinks to make the connecting rod 43 move downward, the pressing block 46 moves downward to press the switch button 45, and the brake assembly 3 works through the signal control of the switch button 45 and the tension sensor 42.

[0035] In use, when the steel wire of the car 1 is broken, the tension of the tension sensor 42 connected with the pull rope 41 changes, the tension sensor 42 sends a pressure change signal, the reset spring two 44 shrinks to make the connecting rod 43 move downward, the pressing block 46 moves downward to press the switch button 45, and the brake assembly 3 works through the signal control of the switch button 45 and the tension sensor 42.

[0036] The tension sensor 42 in the utility model is a prior art, and the selected model is CZL837BL.

[0037] The working principle and use process of the utility model are as follows: in use, when the steel wire of the car 1 is broken, the tension of the tension sensor 42 connected with the pull rope 41 changes, the tension sensor 42 sends a pressure change signal, the reset spring two 44 shrinks to make the connecting rod 43 move downward, the pressing block 46 moves downward to press the switch button 45, and the brake assembly 3 works through the signal control of the switch button 45 and the tension sensor 42.

[0038] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A safety gear linkage braking structure of a freight elevator comprising a car (1), characterized in that: The upper end of the car (1) is provided with a brake assembly (3), the side of the brake assembly (3) is connected with a guide rail (2), the upper end of the car (1) is provided with a switch control assembly (4) on one side, the upper end of the car (1) is provided with a battery box (5) on the other side, and the upper end of the battery box (5) is provided with a control box (6); The brake assembly (3) comprises a driving assembly (31), a liquid storage box (32), a piston plate (33), a conveying pipe (34), a hydraulic rod (35), a trapezoidal block (36), a mounting box (37), a sleeve (38) and a reset spring (39), wherein the upper end of the car (1) is provided with the driving assembly (31) in the middle, the two sides of the driving assembly (31) are connected with the liquid storage box (32), the inside of the liquid storage box (32) is provided with the piston plate (33), the two sides of the car (1) are connected with the mounting box (37), the trapezoidal groove in the inside of the mounting box (37) is provided with the trapezoidal block (36), the lower end of the trapezoidal block (36) is connected with the hydraulic rod (35), the surface of the hydraulic rod (35) is provided with the reset spring (39), the lower end of the trapezoidal block (36) is provided with the sleeve (38), and the conveying pipe (34) is connected between the side of the liquid storage box (32) and the sleeve (38); The driving assembly (31) comprises a double-head motor (311), a connecting flange (312), a lead screw (313) and a push rod (314), wherein the upper end of the car (1) is provided with the double-head motor (311) in the middle, the rotating shaft of the double-head motor (311) is connected with the lead screw (313), the lead screw (313) and the rotating shaft of the double-head motor (311) are connected through the connecting flange (312), and the surface of the lead screw (313) is provided with the push rod (314).

2. A safety switch linkage braking arrangement for an elevator as defined in claim 1, wherein: The push rod (314) is slidably connected between the liquid storage box (32), and the outer surface of the push rod (314) is in a rectangular structure.

3. The safety gear linkage brake structure of an elevator according to claim 1, wherein: The switch control assembly (4) comprises a pull rope (41), a tension sensor (42), a connecting rod (43), a reset spring (44), a switch button (45), a pressing block (46) and a limiting frame (47), wherein the upper end of the car (1) is provided with the limiting frame (47) on the side, the middle of the limiting frame (47) is slidably connected with the connecting rod (43), the two ends of the connecting rod (43) are connected with the tension sensor (42), the upper end of the tension sensor (42) is connected with the pull rope (41), the lower end of the connecting rod (43) is provided with the pressing block (46) on both sides, the upper end of the car (1) is provided with the switch button (45) below the pressing block (46), and the bottom middle of the connecting rod (43) is connected with the reset spring (44) between the car (1).

4. A safety gear linkage braking arrangement for an elevator as defined in claim 3, wherein: The pull rope (41) is connected with the fixed steel wire rope of the car (1), the reset spring (44) is in a stretched state, and the pressing block (46) does not contact the switch button (45).

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