Deformation buffering type elevator emergency braking device

Abstract

The utility model provides a deformation buffering type elevator emergency braking device, and belongs to the technical field of elevator braking. The deformation buffering type elevator emergency braking device comprises a shell, grooves are formed in the two sides of the inner wall of the shell correspondingly, pulley assemblies are rotationally connected to the interiors of the two grooves correspondingly, braking assemblies are slidably connected to the positions, close to the two sides of the pulley assemblies, of the shell correspondingly, and a driving mechanism is arranged on one side of the shell; the two ends of the driving mechanism are connected with one sides of the two braking assemblies respectively, the driving mechanism comprises a machine box, a motor, a worm, lead screws and a worm wheel, the interior of the machine box is rotationally connected with the pair of lead screws and the worm, the worm wheel is connected between the pair of lead screws, the worm wheel is meshed with the worm, and the motor is connected with the worm wheel. A motor is installed at the top end of the machine box, and the output end of the motor is in transmission connection with one end of the worm.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator braking, in particular to a deformation buffer type elevator emergency braking device. Background Art

[0002] An elevator refers to a permanent transportation device that serves several specific floors in a building, and its car runs on at least two rows of rigid rails that are perpendicular to the horizontal plane or inclined at an angle of less than 15° to the plumb line. There are also step-type ones, with treads mounted on crawlers and running continuously, commonly known as escalators or moving walkways. After searching, a Chinese patent with authorization announcement number CN214780080U discloses a deformation buffer elevator emergency braking device, which relates to the field of elevator braking technology, including a ladder shaft, guide rails are opened on both sides of the ladder shaft, and multiple groups of buffer devices are arranged inside the ladder shaft. The buffer device includes a base, a piston cylinder, a piston, a lower piston cavity, an upper piston cavity, a piston rod, a through hole, a buffer pad and a buffer spring. A base is fixedly installed inside the ladder shaft, and a piston cylinder is fixedly connected to the top of the base. A piston is arranged inside the piston cylinder, a lower piston cavity is opened below the piston, an upper piston cavity is opened above the piston, and a piston rod is connected to the top of the piston. This type of deformation buffer elevator emergency brake device is equipped with a hard rubber plate to rub against the inner wall of the ladder shaft when the elevator car falls, thereby reducing the speed of the elevator car when it falls, and a buffer device is provided to provide a certain buffer for the fall of the elevator car, thereby avoiding or reducing the damage caused to passengers by the elevator fall.

[0003] However, in actual use, the braking process of this solution is rather cumbersome, and due to its large size, it needs to be installed and connected to the upper and lower sides of the elevator car, which makes the installation project rather complicated and is not conducive to subsequent maintenance.

[0004] Therefore, we have made improvements to this and proposed a deformation buffer type elevator emergency brake device. Utility Model Content

[0005] In order to solve the problems that the existing devices are difficult to brake and are too large to be installed, the utility model provides a deformation buffer type elevator emergency brake device.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A deformation buffer elevator emergency brake device comprises a shell, grooves are respectively arranged on both sides of the inner wall of the shell, pulley assemblies are respectively rotatably connected inside the two grooves, and the shell is slidably connected with brake assemblies on both sides close to the pulley assemblies. A driving mechanism is provided on one side of the shell, and the two ends of the driving mechanism are respectively connected to one side of the two brake assemblies. The driving mechanism comprises a chassis, a motor, a worm, a lead screw and a worm wheel. A pair of the lead screws and the worm are respectively rotatably connected inside the chassis, a worm wheel is connected between the pair of the lead screws, and the worm wheel and the worm are meshed with each other. A motor is installed on the top of the chassis, and the output end of the motor is transmission-connected to one end of the worm, and one end of the pair of lead screws is respectively threadedly connected to one side of the brake assembly. Clamping assemblies are respectively arranged on both sides of the shell, and the clamping assemblies include a baffle and a bolt, and the baffle is connected to the outer wall of the shell through the bolt.

[0008] Furthermore, the brake assembly includes a slider and a brake pad, one end of the slider extends to the interior of the housing and is embedded with the brake pad.

[0009] The beneficial effect of adopting the above further solution is that, by installing and using the brake pad, the slider is moved to a specified position, and friction braking can be performed on the pulley assembly.

[0010] Furthermore, the pulley assembly includes a wheel body and an anti-skid leather cover, the outer surface of the wheel body is covered with the anti-skid leather cover, and the outer wall of the anti-skid leather cover is parallel to one side of the brake pad.

[0011] The beneficial effect of adopting the above further solution is that the wheel body has a good braking effect through the coordinated use of the anti-slip leather cover and the brake pad.

[0012] Furthermore, a wear-resistant pad is provided on one side of the inner wall of the shell, and the wear-resistant pad includes a gasket, a clamping block and a screw, and one side of the gasket is connected to the clamping block.

[0013] The beneficial effect of adopting the above further solution is that the gasket can be fastened to the housing by installing and using the clamping block.

[0014] Furthermore, a connecting screw is inserted through the connection between the gasket and the block, and one end of the screw is threadedly connected to one side of the housing.

[0015] The beneficial effect of adopting the above further solution is that the wear-resistant pad can be detached and assembled through the connection with screws.

[0016] Furthermore, a side pressure mechanism is provided on one side of the shell, and the side pressure mechanism includes a hydraulic cylinder, a push block and an extrusion block. The push block and the extrusion block are slidably connected on both sides of the interior of the shell, and one side of the push block is in contact with one side of the gasket.

[0017] The beneficial effect of adopting the above further solution is that, through the installation and use of the push block, it is convenient to push the extrusion block laterally.

[0018] Furthermore, adjacent sides of the push block and the extrusion block are respectively provided with inclined surfaces, and the two inclined surfaces are fitted to each other.

[0019] The beneficial effect of adopting the above further solution is that, by setting the inclined surface, the push block and the extrusion block can slide in the vertical direction.

[0020] Furthermore, a hydraulic cylinder is installed at the bottom end of the shell, and an output end of the hydraulic cylinder is connected to the bottom end of the push block.

[0021] The beneficial effect of adopting the above further solution is that, by installing and using the hydraulic cylinder, power is provided for the movement of the push block.

[0022] Furthermore, a plurality of air holes are arranged on the outer wall of the shell.

[0023] The beneficial effect of adopting the above further solution is that, through the provision of the air holes, the heat generated by the friction between the pulley assembly and the brake assembly can be easily released.

[0024] The beneficial effect of the utility model is that through the coordinated use of the pulley assembly, the brake assembly and the driving mechanism, the device has a simple structure and perfect braking kinetic energy, wherein the worm is driven by the output end of the motor, so that the worm drives the worm wheel to rotate, and causes the two lead screws to rotate accordingly, thereby driving the two brake assemblies to move away or closer, respectively, until the brake pad on one side of the brake assembly contacts the outer wall of the pulley assembly, and at the same time, pressure is applied to complete the braking, and then the baffle is fixed again through the installation and use of the clamping assembly, and the outer shell is fixed to the vertical rail of the elevator, and at the same time, the baffle is used in conjunction with the bolt connection to form a detachable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A front perspective view of a deformation buffer elevator emergency brake device provided by the utility model;

[0026] Figure 2 A bottom-up stereoscopic diagram of a deformation buffer elevator emergency brake device provided by the utility model;

[0027] Figure 3 A cross-sectional view of a driving mechanism of a deformation buffer elevator emergency brake device provided by the utility model;

[0028] Figure 4 A partial cross-sectional view of a deformation buffer elevator emergency brake device provided by the utility model;

[0029] Figure 5 The utility model provides a schematic diagram of a side pressure mechanism of a deformation buffer type elevator emergency brake device.

[0030] In the figure: 100, housing; 200, driving mechanism; 2001, chassis; 2002, motor; 2003, worm; 2004, lead screw; 2005, worm wheel; 300, brake assembly; 3001, slider; 3002, brake pad; 400, engaging assembly; 4001, baffle; 4002, bolt; 500, pulley assembly; 5001, wheel body; 5002, anti-slip leather cover; 600, air hole; 700, wear-resistant pad; 7001, gasket; 7002, block; 7003, screw; 800, side pressure mechanism; 8001, hydraulic cylinder; 8002, push block; 8003, extrusion block. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. Example

[0033] See also Figure 1-Figure 5The utility model provides a technical solution: a deformation buffer elevator emergency brake device, including a shell 100, grooves are respectively arranged on both sides of the inner wall of the shell 100, and pulley assemblies 500 are rotatably connected inside the two grooves. The shell 100 is slidably connected with brake assemblies 300 on both sides close to the pulley assemblies 500. A driving mechanism 200 is arranged on one side of the shell 100, and the two ends of the driving mechanism 200 are respectively connected to one side of the two brake assemblies 300. The driving mechanism 200 includes a chassis 2001, a motor 2002, a worm 2003, a lead screw 2004 and a worm wheel 2005. The chassis 20 The interior of 01 is rotatably connected with a pair of lead screws 2004 and a worm 2003, a worm wheel 2005 is connected between the pair of lead screws 2004, the worm wheel 2005 and the worm 2003 are meshed with each other, a motor 2002 is installed on the top of the chassis 2001, the output end of the motor 2002 is transmission-connected with one end of the worm 2003, one end of the pair of lead screws 2004 is threadedly connected with one side of the brake assembly 300, and a clamping assembly 400 is respectively arranged on both sides of the outer shell 100, the clamping assembly 400 includes a baffle 4001 and a bolt 4002, and the baffle 4001 is connected to the outer wall of the outer shell 100 through the bolt 4002. Example

[0034] See also Figure 1-Figure 5As an embodiment of the present invention, further, the brake assembly 300 includes a slider 3001 and a brake pad 3002. One end of the slider 3001 extends to the interior of the housing 100 and is embedded with the brake pad 3002. By installing and using the brake pad 3002, the slider 3001 is moved to a specified position, and the pulley assembly 500 can be frictionally braked. The pulley assembly 500 includes a wheel body 5001 and an anti-skid leather cover 5002. The outer surface of the wheel body 5001 is covered with an anti-skid leather cover 5002. The outer wall of the anti-skid leather cover 5002 is parallel to one side of the brake pad 3002. Through the coordinated use of the anti-skid leather cover 5002 and the brake pad 3002, the wheel body 5001 has a good braking effect. A wear-resistant pad 700 is provided on one side of the inner wall of the housing 100. The wear-resistant pad 700 includes a gasket 7001, a block 70 02 and screw 7003, one side of the gasket 7001 is connected to the block 7002, and the installation and use of the block 7002 can make the gasket 7001 fastened to the shell 100, and the connection screw 7003 is inserted into the connection between the gasket 7001 and the block 7002, and one end of the screw 7003 is threadedly connected to one side of the shell 100. Through the connection and use of the screw 7003, the wear-resistant pad 700 is detachable, and a side pressure mechanism 800 is provided on one side of the shell 100. The side pressure mechanism 800 includes a hydraulic cylinder 8001, a push block 8002 and an extrusion block 8003. The push block 8002 and the extrusion block 8003 are slidably connected on both sides of the interior of the shell 100, respectively. One side of the push block 8002 is in contact with one side of the gasket 7001. Through the installation and use of the push block 8002, it is convenient to push the extrusion block 8003 laterally. Example

[0035] See also Figure 1-Figure 5 As an embodiment of the utility model, further, the adjacent sides of the push block 8002 and the extrusion block 8003 are respectively provided with inclined surfaces, and the two inclined surfaces are fitted with each other. Through the setting of the inclined surfaces, the push block 8002 and the extrusion block 8003 slide in the vertical direction. The hydraulic cylinder 8001 is installed at the bottom end of the shell 100, and the output end of the hydraulic cylinder 8001 is connected to the bottom end of the push block 8002. Through the installation and use of the hydraulic cylinder 8001, power is provided for the movement of the push block 8002. A plurality of air holes 600 are set on the outer wall of the shell 100. Through the setting of the air holes 600, it is convenient to release the heat generated by the friction between the pulley assembly 500 and the brake assembly 300.

[0036] Specifically, the working principle of the deformation buffer elevator emergency brake device is as follows: when in use, first check whether the structure of the device is intact. After ensuring that the structure is intact, the device is clipped to the elevator vertical rail and docked with the bottom of the elevator to complete the installation of the device. Secondly, by starting the motor 2002, its output end drives the worm 2003, prompting the worm 2003 to drive the worm wheel 2005 to rotate, and prompting the two lead screws 2004 to rotate accordingly, thereby driving the two brake assemblies 300 to move away or closer, until the brake pad 3002 on one side of the brake assembly 300 contacts the outer wall of the pulley assembly 500, and at the same time, pressure is applied to complete the braking, and then the baffle 4001 is fixed again by installing and using the locking assembly 400. At the same time, the housing 100 is fixed to the vertical rail of the elevator, and the bolts 4002 are used to connect and make the baffle 4001 constitute a detachable connection. The brake pads 3002 are installed and used to move the slider 3001 to the specified position, so that the pulley assembly 500 can be frictionally braked, and the anti-slip leather cover 5002 and the brake pads 3002 are used in conjunction, so that the wheel body 5001 has a good braking effect. At the same time, the hydraulic cylinder 8001 is started so that the output end pushes the push block 8002, and the push block 8002 is installed and used to facilitate the lateral push of the extrusion block 8003. The inclined surface is set to make the push block 8002 and the extrusion block 8003 slide in the vertical direction, thereby prompting the device to perform emergency braking from another direction.

[0037] It should be noted that the specific model specifications of the motor 2002 and the hydraulic cylinder 8001 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field. Secondly, the device is connected to the speed monitoring instrument signal in the elevator control cabinet, and the motor 2002 and the hydraulic cylinder 8001 are controlled by signal. Therefore, the device can obtain whether the current speed of the elevator is normal, so it will not be described in detail.

[0038] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A deformation buffer elevator emergency brake device, comprising a housing (100), characterized in that: Grooves are provided on both sides of the inner wall of the housing (100), and the insides of the two grooves are rotatably connected to pulley assemblies (500), and the housing (100) is slidably connected to brake assemblies (300) on both sides close to the pulley assemblies (500). A driving mechanism (200) is provided on one side of the housing (100), and the two ends of the driving mechanism (200) are respectively connected to one side of the two brake assemblies (300). The driving mechanism (200) comprises a chassis (2001), a motor (2002), a worm (2003), a lead screw (2004), and a worm wheel (2005). The inside of the housing (2001) is rotatably connected to a pair of the lead screws (2004) and the worm (2005). 2003), a worm wheel (2005) is connected between a pair of the lead screws (2004), the worm wheel (2005) and the worm (2003) are meshed with each other, a motor (2002) is installed at the top of the chassis (2001), the output end of the motor (2002) is drivingly connected to one end of the worm (2003), one end of the pair of lead screws (2004) is respectively threadedly connected to one side of the brake assembly (300), and a clamping assembly (400) is respectively arranged on both sides of the housing (100), the clamping assembly (400) includes a baffle (4001) and a bolt (4002), and the baffle (4001) is connected to the outer wall of the housing (100) through the bolt (4002).

2. A deformation buffer elevator emergency brake device according to claim 1, characterized in that: The brake assembly (300) comprises a slider (3001) and a brake pad (3002); one end of the slider (3001) extends into the interior of the housing (100) and is embedded with the brake pad (3002).

3. A deformation buffer elevator emergency brake device according to claim 2, characterized in that: The pulley assembly (500) comprises a wheel body (5001) and an anti-skid leather cover (5002); the outer surface of the wheel body (5001) is covered with the anti-skid leather cover (5002); and the outer wall of the anti-skid leather cover (5002) is parallel to one side of the brake pad (3002).

4. A deformation buffer elevator emergency brake device according to claim 1, characterized in that: A wear-resistant pad (700) is provided on one side of the inner wall of the housing (100), the wear-resistant pad (700) comprising a gasket (7001), a clamping block (7002) and a screw (7003), and one side of the gasket (7001) is connected to the clamping block (7002).

5. A deformation buffer elevator emergency brake device according to claim 4, characterized in that: A connecting screw (7003) is inserted through the connection between the gasket (7001) and the clamping block (7002), and one end of the screw (7003) is threadedly connected to one side of the housing (100).

6. A deformation buffer elevator emergency brake device according to claim 5, characterized in that: A side pressure mechanism (800) is provided on one side of the housing (100), and the side pressure mechanism (800) comprises a hydraulic cylinder (8001), a push block (8002) and an extrusion block (8003). The push block (8002) and the extrusion block (8003) are slidably connected on both sides of the interior of the housing (100), and one side of the push block (8002) is in contact with one side of the gasket (7001).

7. A deformation buffer elevator emergency brake device according to claim 6, characterized in that: The push block (8002) and the squeeze block (8003) are respectively provided with inclined surfaces on adjacent sides, and the two inclined surfaces are fitted to each other.

8. A deformation buffer elevator emergency brake device according to claim 7, characterized in that: A hydraulic cylinder (8001) is installed at the bottom end of the housing (100), and an output end of the hydraulic cylinder (8001) is connected to the bottom end of the push block (8002).

9. The deformation buffer elevator emergency brake device according to claim 1, characterized in that: The outer wall of the housing (100) is provided with a plurality of air holes (600).

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