Clamp type rope clamping device and elevator rescue system

Abstract

The utility model relates to the technical field of elevators, in particular to a pincer type rope clamping device and an elevator rescue system. A pincer-type rope clamping device is used for elevator rescue and comprises a rope clamping opening, a rope clamping base, a rope clamping base and a rope clamping base, and the rope clamping opening is used for placing a speed governor rope of an elevator; the rope clamping assembly is used for driving the rope clamping opening to clamp the speed limiter rope; the rope clamping assembly comprises two plier bodies which are hinged to each other to form a plier shape, each plier body is provided with a plier opening and a handle, and the rope clamping openings are formed in the plier openings of the plier bodies; and the connecting rope is connected with a handle of the clamp body and used for applying pulling force to the handle so as to drive the speed limiter rope clamped in the rope clamping opening to move synchronously. Rescue operation is convenient and fast, and the rope clamping device is simple in structure.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and in particular to a clamp-type rope clamping device and an elevator rescue system. Background Art

[0002] If a machine-room-less elevator experiences a sudden power outage during operation, the elevator car will stop suddenly at any position in the hoistway. Rescue personnel must release the main engine brake, exploiting the weight difference between the car and the counterweight to move the car downward or upward until it reaches level ground. At that point, the main engine brake will bring the car to a stop. However, when an elevator malfunctions, there are usually people inside, adding to the car's weight. When the car's weight and the counterweight become so close that they cannot be balanced, even if the main engine brake is released, the car will remain stationary, rendering the rescue effort ineffective.

[0003] Therefore, rescuers usually carry a rope clamp device to clamp the limiter wire rope, and then pull the rope clamp device to move the limiter wire rope, thereby pulling the car down to the level position. However, the existing rope clamp device has a complex structure and the rescue operation is not fast enough. Utility Model Content

[0004] Based on this, it is necessary to provide a clamp-type rope clamp device and an elevator rescue system that are convenient and quick to operate.

[0005] A clamp-type rope clamping device for elevator rescue, comprising:

[0006] A rope clamping opening, wherein the rope clamping opening is used to place the speed governor rope of the elevator;

[0007] a rope clamp assembly, the rope clamp assembly being used to drive the rope clamping opening to clamp the speed governor rope; the rope clamp assembly comprising two pliers bodies hinged to each other in a pliers-like shape, the two pliers bodies each having a jaw and a handle, the rope clamping opening being provided at the jaw of the pliers body;

[0008] A connecting rope is connected to the handle of the pliers body and is used to apply a pulling force to the handle to drive the speed limiter rope clamped in the rope clamping opening to move synchronously.

[0009] In one embodiment, an elastic member is provided between the handles of the two pliers, and both ends of the elastic member are respectively connected to the handles of the two pliers to drive the two jaws to close.

[0010] In one embodiment, the elastic member is arranged near the connection point between the connecting rope and the handle, a spring seat is provided on the inner side of the handle, and both ends of the elastic member are respectively connected to the spring seats on the two handles.

[0011] In one embodiment, the ends of the jaws of the two jaws away from the handle are respectively provided with a jaw hook, and the jaw hook and the jaws are arranged to form the rope clamping opening.

[0012] In one embodiment, the clamp hooks on the two clamp bodies extend toward each other, the clamp hooks are located at the ends of the jaw opening side, and a step surface is formed between the clamp hooks and the end surface of the jaw.

[0013] In one embodiment, an anti-skid pad is provided at one end of the jaws near the jaw hook, and the anti-skid pad is provided with horizontally extending anti-skid grooves.

[0014] In one embodiment, a through hole is provided on the end of the handle away from the jaws, the through hole extends along the height direction of the handle and passes through the end of the handle up and down; the connecting rope is passed through the through hole.

[0015] The present application also provides an elevator rescue system, comprising the clamp-type rope clamp device according to any one of the above embodiments; the elevator rescue system further comprises:

[0016] a reeling member connected to the connecting rope and capable of rotating around its own axis for reeling in the connecting rope;

[0017] A driving member, used for driving the winding member to rotate;

[0018] A transmission deceleration device is connected to the output shaft of the winding member and the driving member, and is used to reduce the rotation speed of the output shaft and transmit it to the rotation of the winding member.

[0019] In one embodiment, the transmission reduction device includes a small gear set and a large gear set, the small gear set is connected to the output shaft of the driving member, the large gear set is connected to the winding member, and the small gear set and the large gear set are meshed for transmission.

[0020] In one embodiment, the driving member includes a turntable and a handle provided on the turntable, and the pinion gear set is connected to the turntable and rotates coaxially.

[0021] Compared to existing technologies, the pliers-type rope clamp device of this application operates on the same principle as pliers, making it easy to operate and capable of quickly clamping the limiter rope. The connecting rope pulls the two handles toward each other, driving the two jaws together, narrowing the rope clamping openings and thus clamping the limiter rope. During the pulling process, the connecting rope continuously exerts tension on the handles, causing the rope clamping openings to clamp the limiter rope more and more tightly, providing a secure grip. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a structural diagram of the elevator rescue system for this application.

[0024] Figure 2 This is a schematic structural diagram of the rope clamp assembly in this application.

[0025] Figure 3 This is a schematic diagram of the structure of the transmission reduction device in this application.

[0026] Figure 4 for Figure 3 Schematic diagram of the structure after removing the shell.

[0027] Figure 5 This is a schematic diagram of the structure of the driving member and the pinion gear set in this application.

[0028] Figure 6 This is a schematic diagram of the structure of the driving component in this application.

[0029] Figure 7 This is a schematic diagram of the structure of the winding and large gear set in this application.

[0030] Figure 8 This is a schematic diagram of the structure of the volume collection in this application.

[0031] Figure 9 This is a schematic diagram of the structure of the box in this application.

[0032] Reference numerals: 10, pliers-type rope clamping device; 11, rope clamping opening; 12, rope clamping assembly; 121, pliers body; 122, pliers opening; 123, pliers hook; 124, anti-slip pad; 124a, anti-slip groove; 125, handle; 125a, spring seat; 126, perforation; 127, elastic member; 20, connecting rope; 30, retracting member; 31, second wheel shaft; 32, baffle; 33, sleeve; 34, cotter pin; 40, driving member; 41, turntable; 42. First axle; 43. Handle; 50. Transmission reduction device; 51. Small gear set; 511. Small gear; 512. First connecting member; 513. First bearing; 52. Large gear set; 521. Large gear; 522. Second connecting member; 523. Second bearing; 53. Keyway; 54. Circlip; 55. Housing; 551. First through hole; 552. Second through hole; 553. Kit; 56. Connecting arm; 561. Interface. DETAILED DESCRIPTION

[0033] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0034] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0036] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the relevant listed items.

[0038] This application is applicable to machine-room-less elevators (machine-room-less passenger elevators, machine-room-less freight elevators, and machine-room-less villa elevators) equipped with speed limiter wire ropes. This application is used to pull or drag the speed limiter wire rope, causing the elevator car to slide downward synchronously with the speed limiter wire rope, ultimately allowing the elevator car to reach the car level position, thereby achieving elevator rescue.

[0039] See also Figures 1 to 9 The present application provides an elevator rescue system, which includes a clamp-type rope clamping device 10, a winding member 30, a driving member 40 and a transmission reduction device 50.

[0040] The pliers-type rope clamp device 10 includes a rope clamping port 11, a rope clamping assembly 12, and a connecting rope 20. The rope clamping port 11 is used to place the speed governor rope of the elevator, and the rope clamping assembly 12 is used to drive the rope clamping port 11 to clamp the speed governor rope. The rope clamping assembly 12 includes two pliers bodies 121, and the two pliers bodies 121 are hinged to each other to form a pliers shape. The two pliers bodies 121 respectively have a jaw 122 and a handle 125. The rope clamping port 11 is located at the jaw 122 of the pliers body 121. The connecting rope 20 is connected to the handle of the pliers body and is used to apply tension to the handle to drive the speed governor rope clamped in the rope clamping port 11 to move synchronously.

[0041] The reeling member 30 is used to reel in the connecting rope 20. The reeling member 30 is connected to the connecting rope 20 and can rotate about its own axis. As the reeling member 30 reels in the connecting rope 20, the rope clamping assembly 12 drives the rope clamping opening 11 to gradually increase the clamping force applied to the speed governor rope. The driving member 40 is used to drive the reeling member 30 in rotation. The transmission reduction device 50, which connects the output shaft of the reeling member 30 and the driving member 40, is used to reduce the rotation speed of the output shaft to the rotation of the reeling member 30.

[0042] It is understandable that the length of the connecting rope 20 is shortened after being reeled in, thereby pulling the clamp-type rope clamp device 10 downward, and the clamp-type rope clamp device 10 pulls the speed limiter rope to move downward, thereby causing the elevator car to move and return to the level position, thereby achieving elevator rescue. During the reeling process, the rope clamp assembly 12 can drive the rope clamping mouth 11 to gradually increase the clamping force applied to the speed limiter rope. That is, while pulling the speed limiter rope to move downward, the rope clamping mouth 11 can also clamp the speed limiter rope tighter and tighter, ensuring that there is no slippage between the rope clamping mouth 11 and the speed limiter rope during the pulling process, ensuring the synchronous movement of the two, and increasing the rescue speed. At the same time, it prevents the two from slipping, causing the elevator car to float up and down during the downward movement, and avoids affecting the trapped people inside the elevator.

[0043] It is understood that when an elevator rescue is required, the pliers-type rope clamp 10 is first clamped to the speed governor rope. The driver 40 is then activated, and the rotation of the driver 40 output shaft is transmitted to the reel 30 via the transmission reduction device 50. The reel 30 then begins to rotate about its axis, reeling in the connecting rope 20. The reeled-in connecting rope 20 shortens, pulling the pliers-type rope clamp 10 downward. This pulls the speed governor rope downward, causing the elevator car to move back to the floor, thus enabling the rescue.

[0044] In this way, rescue operations can be carried out without the use of sandbags, compensation chains, etc., and the rescue response is fast and convenient. Secondly, a transmission reduction device 50 is also provided to reduce the speed of the output torque and increase the torque through the transmission reduction device 50, so that the car can be pulled to move with less force, reducing the output torque requirement of the drive member 40.

[0045] The connecting rope 20 can be made of a steel wire rope, which has strong toughness and strength and can withstand the pulling force that pulls the elevator car. Of course, the connecting rope 20 can also be made of other materials, as long as the pulling force requirement is met.

[0046] In one embodiment, if Figure 2 As shown, one end of the connecting rope 20 is connected to the reel-up member 30 , and the other end is connected to the handles 125 of the two pliers bodies 121 .

[0047] As can be understood, the jaws 122 and handles 125 are located on either side of the hinged joint between the two jaws 121. The rope clamp assembly 12 operates on the same principle as pliers, making it easy to operate and capable of quickly clamping the retainer rope. Specifically, by applying an inward force to the handles 125 of the two jaws 121, the two handles 125 move toward each other, causing the jaws 122 of the two jaws 121 to invert around the hinged joint and move toward each other, clamping the object located between the jaws 122, namely the retainer rope.

[0048] Therefore, when the connecting rope 20 is reeled in, the two handles 125 are pulled closer together, and the two jaws 122 are moved closer together, narrowing the width of the rope clamping opening 11 and thereby clamping the speed limiter rope. During the reeling process of the connecting rope 20, a pulling force is continuously applied to the handles 125, causing the rope clamping opening 11 to clamp the speed limiter rope more and more tightly, thereby firmly clamping it. At the same time, the speed limiter rope clamped in the rope clamping opening 11 is driven to move synchronously with the reeling action of the connecting rope 20.

[0049] Furthermore, an elastic member 127 is provided between the handles 125 of the two pliers bodies 121 , and both ends of the elastic member 127 are respectively connected to the handles 125 of the two pliers bodies 121 to drive the two jaws 122 to close.

[0050] It can be understood that the presence of the elastic member 127 provides a certain pulling force to the two handles 125, thereby preventing the two handles 125 from being separated at will without external force, and preventing the jaws from being opened at will.

[0051] When the limiter rope is to be clamped, a certain external force needs to be applied outward to the handle 125 to overcome the pre-tightening force of the elastic member 127, so that the two jaws 122 open a certain distance, and the limiter rope can be placed in. After the limiter rope is placed in the rope clamping opening 11, the external force applied to the handle 125 is removed, and the handle 125 is pulled closer to each other by the elastic member 127, driving the jaws 122 closer to each other, and compressing the limiter rope. Even if the connecting rope 20 is not reeled in, the clamp-type rope clamping device 10 will not fall off the limiter rope, thereby preventing personal injury.

[0052] Optionally, an elastic member 127 is positioned near the junction of the connecting rope 20 and the handle 125. The elastic member 127 is a spring. Of course, in other embodiments, the elastic member 127 may also be a spring, or other structure, such as a spring clip. A spring seat 125a is provided inside the caliper handle 125. The ends of the elastic member 127 are connected to the spring seats 125a on the two handles 125, respectively. In this embodiment, the spring seats 125a are bolts, with one end of the nut located outside the handle 125 and one end of the screw extending through the handle 125 and connected to the elastic member 127.

[0053] Furthermore, the ends of the jaws 122 of the two jaw bodies 121 away from the handle 125 are respectively provided with a clamp hook 123, and the clamp hook 123 and the jaws 122 are surrounded to form a rope clamping opening 11. The arrangement of the clamp hook 123 prevents the limiter rope from escaping from the rope clamping opening 11.

[0054] For example, the two pliers 121 have hooks 123 integrally formed with the pliers 121 and extending toward each other. The hooks 123 are located at the ends of the openings of the jaws 122, and a step surface is formed between the hooks 123 and the end surfaces of the jaws 122.

[0055] Furthermore, an anti-skid pad 124 is provided on one end of the jaws 122 near the jaw hook 123. When the jaws 122 are pressed against the limiter rope, the anti-skid pad 124 can increase the friction between the jaws 122 and the limiter rope, further reducing the probability of slipping between the two.

[0056] Exemplarily, the anti-slip pad 124 is provided with horizontally extending anti-slip grooves 124a. In one embodiment, the anti-slip pad 124 is provided with multiple grooves extending horizontally and spaced vertically to form the anti-slip grooves 124a on its surface. These grooves further increase friction with the stopper rope, further reducing the probability of slipping. Exemplarily, the anti-slip pad 124 is made of rubber, offering a simple structure and low cost. Of course, the anti-slip pad 124 may also be made of other materials, as long as they meet the required friction requirements.

[0057] Furthermore, a through-hole 126 is provided on the end of the handle 125 away from the jaws 122. The through-hole 126 extends along the height of the handle and passes through the end of the handle 125 vertically. The connecting rope 20 is passed through the through-hole 126. Specifically, the end of the connecting rope 20 passes through the through-hole 126 and then connects to the main body of the connecting rope 20, thereby connecting the connecting rope 20 to the handle 125.

[0058] See also Figure 3-Figure 9 The transmission reduction device 50 includes a small gear set 51 and a large gear set 52. The small gear set 51 is connected to the output shaft of the driving member 40, and the large gear set 52 is connected to the winding member 30. The small gear set 51 and the large gear set 52 are meshed for transmission.

[0059] It can be understood that the rotation of the output shaft of the driving member 40 drives the small gear set 51 to rotate, the small gear set 51 drives the large gear set 52 to rotate, and the rotation of the large gear set 52 drives the winding member 30 to rotate.

[0060] Specifically, the transmission between the output shaft of the drive member 40 and the take-up member 30 is achieved through the small gear set 51 and the large gear set 52. The large gear set 52 has a larger diameter than the small gear set 51, resulting in a slower rotational speed and a higher torque than the small gear set 51. This reduces the output power and torque of the drive member 40, thereby reducing the output power and torque of the drive member 40. Furthermore, the use of the large and small gear sets 51 for transmission offers a simple structure, stable transmission, and a low risk of failure.

[0061] Furthermore, the diameter of the large gear set 52 is 2-5 times the diameter of the small gear set 51. Therefore, the torque ratio between the small gear set 51 and the large gear set 52 is 1:2-5. The transmission ratio between the small gear set 51 and the large gear set 52 is 2-5:1.

[0062] Preferably, the diameter of the large gear set 52 is three times that of the small gear set 51. Therefore, the torque ratio between the small gear set 51 and the large gear set 52 is 1:3. The transmission ratio between the small gear set 51 and the large gear set 52 is 3:1. With this ratio, the large gear set 52 is not excessively large, making it easier to operate within the hoistway, while also achieving a good deceleration and torque-increasing effect.

[0063] Of course, this is not limited to this. In other embodiments, the speed value can be selected according to actual needs.

[0064] Specifically, such as Figure 5-Figure 6 As shown, the driving member 40 includes a turntable 41 and a handle 43 mounted on the turntable 41. A pinion gear set 51 is connected to the turntable 41 and rotates coaxially with the turntable 41. The handle 43 is positioned near the edge of the turntable 41. The connection between the two can be welded, screwed, or other methods, depending on actual needs.

[0065] Understandably, by manually gripping the handle 43 and applying force, the turntable 41 is driven to rotate, which in turn drives the reeling member 30 to rotate through the transmission. No electrical components such as motors are required, which reduces the manufacturing cost of the device and also reduces the size of the device, making it easier to operate in the hoistway and facilitating rescue operations.

[0066] Furthermore, the diameter of the turntable 41 is set to 2-10 times the diameter of the small gear set 51. Thus, the torque ratio between the turntable 41 and the small gear set 51 is 1:2-10. After transmission through the large gear set 52, the torque ratio between the turntable 41 and the winding member 30 can reach 1:4-50.

[0067] That is, applying a very small force on the handle 43 can amplify it by several dozen times, so that the reel-up member 30 can be easily driven to rotate to reel in the connecting rope 20 under manual operation, thereby pulling the speed governor rope to slide.

[0068] For example, the diameter of the rotating disk 41 is preferably set to six times the diameter of the pinion gear set 51. This means that the torque ratio between the rotating disk 41 and the pinion gear set 51 is 1:6. Furthermore, since the torque ratio between the pinion gear set 51 and the large gear set 52 is 1:3, the torque ratio between the rotating disk 41 and the winding element 30 is 1:18. This greatly increases torque, achieving labor-saving operation and creating a multi-power toolbox.

[0069] Furthermore, the turntable 41 is provided with a first axle 42, and the output shaft is the first axle 42. The first axle 42 is located at the center of the turntable 41 and is integrally formed with the turntable 41. The pinion gear set 51 includes a pinion gear 511 and a first connecting member 512. The pinion gear 511 is sleeved on the first axle 42 and is fixedly connected to the first axle 42 via the first connecting member 512.

[0070] In this embodiment, the first connecting member 512 is a flat key, and a keyway 53 that cooperates with the flat key is provided on the pinion 511 and the first axle 42. Of course, in other embodiments, the pinion 511 and the first axle 42 can also be connected in other ways, which will not be described here.

[0071] Optionally, the pinion gear assembly 51 further includes a first bearing 513. At least two first bearings 513 are provided, each of which is sleeved on the first axle 42 and disposed on either side of the pinion gear 511. The first bearings 513 are secured to the first axle 42 via a circlip 54. This arrangement allows for smoother rotation of the first axle 42 relative to the gearbox.

[0072] In this embodiment, two first bearings 513 are provided, and they can be directly purchased on the market without limitation on the model. Of course, in other embodiments, the number of first bearings 513 can also be set to three, four, or even more to further improve the smoothness of the rotation of the first wheel shaft 42.

[0073] Furthermore, the reeling member 30 is provided with a second axle 31. The large gear set 52 includes a large gear 521 and a second connecting member 522. The large gear 521 is sleeved on the second axle 31 and is fixedly connected to the second axle 31 via the second connecting member 522.

[0074] In this embodiment, the second connecting member 522 is a flat key, and a keyway 53 that matches the flat key is provided on the large gear 521 and the second axle 31. Of course, in other embodiments, the large gear 521 and the second axle 31 can also be connected in other ways, which will not be described here.

[0075] Furthermore, the large gear assembly 52 also includes second bearings 523. At least two second bearings 523 are provided, each of which is sleeved on the second axle 31 and located on either side of the large gear 521. The second bearings 523 are secured to the second axle 31 via a circlip 54. This arrangement allows for smoother rotation of the second axle 31 relative to the gearbox.

[0076] In this embodiment, two second bearings 523 are provided, and they can be directly purchased on the market without limitation on the model. Of course, in other embodiments, the number of second bearings 523 can also be set to three, four, or even more to further improve the smoothness of the rotation of the second wheel shaft 31.

[0077] Specifically, such as Figure 8 The winding member 30 includes two baffles 32 and a sleeve 33 located between the two baffles 32. One end of the sleeve 33 abuts against one of the baffles 32, and the other end abuts against the other baffle 32. A gap is formed between the two baffles 32 for winding the connecting rope 20.

[0078] Furthermore, both baffles 32 and the sleeve 33 are sleeved onto the second axle 31 and positioned on the second axle 31 by a cotter pin 34. Specifically, one end of the second axle 31 passes through one baffle 32, a sleeve 33, and the other baffle 32 in sequence, with the two baffles 32 abutting against each other via the sleeve 33. Two cotter pins 34 are provided, positioned correspondingly on the outsides of the two baffles 32. One end of the cotter pin 34 is fixedly connected to the second axle 31, while the other end abuts against the baffle 32, thereby securing the baffle 32 and preventing the baffle 32 and sleeve 33 from falling off the second axle 31.

[0079] The sleeve 33 and the second axle 31 each have a hole, and the holes of the two are connected to each other. The end of the connecting rope 20 passes through the hole to achieve connection with the reel 30. Of course, in other embodiments, the connection between the connecting rope 20 and the reel 30 can also be achieved by other methods, which will not be described in detail here.

[0080] like Figure 9 As shown, the elevator rescue system further includes a housing 55, in which the transmission reduction device 50 is disposed. The housing 55 is provided with a first through hole 551 and a second through hole 552. The output shaft of the driving member 40 is rotatably disposed in the first through hole 551, and the retracting member 30 is partially rotatably disposed in the second through hole 552.

[0081] For example, the second axle 31 on the reel 30 is inserted into the second through hole 552 and can rotate relative to the second through hole 552. The position of each component is limited by the box 55, the first through hole 551 and the second through hole 552 to ensure stable operation of the device.

[0082] Preferably, a sleeve 553 is provided in each of the first through hole 551 and the second through hole 552. The sleeve 553 can be a bearing sleeve. When the components are installed in the housing 55, the first bearing 513 on the first axle 42 and the second bearing 523 on the second axle 31 are respectively engaged with the sleeve 553 to ensure smooth rotation of the first axle 42 and the second axle 31.

[0083] Furthermore, the box body 55 is provided with a connecting arm 56, and an interface 561 is provided on one end of the connecting arm 56 away from the box body 55. It can be fixed to the elevator guide rail by connecting members such as bolts, and then the entire box body 55 is fixed in the hoistway to facilitate the implementation of rescue operations.

[0084] Optionally, the interface 561 is an oblong hole, that is, an oblong hole or a rectangular hole, which facilitates slight position adjustment of the gear box.

[0085] Optionally, the connecting arm 56 is configured as an L-shaped structure, which provides better fixing and supporting effect on the box body 55 .

[0086] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of patent protection for the present application shall be determined by the appended claims.

Claims

1. A clamp-type rope clamp device for elevator rescue, characterized in that: include: A rope clamping opening (11), wherein the rope clamping opening (11) is used for placing a speed governor rope of an elevator; A rope clamping assembly (12), the rope clamping assembly (12) is used to drive the rope clamping opening (11) to clamp the speed limiter rope; the rope clamping assembly (12) comprises two pliers (121) hinged to each other in the shape of pliers, the two pliers (121) respectively having a jaw (122) and a handle (125), and the rope clamping opening (11) is provided at the jaw (122) of the pliers (121); A connecting rope (20) is connected to a handle (125) of the clamp body (121) and is used to apply a pulling force to the handle (125) to drive the speed limiter rope clamped in the rope clamping opening (11) to move synchronously.

2. The clamp-type rope clamp device according to claim 1, characterized in that: An elastic member (127) is provided between the handles (125) of the two pliers (121), and both ends of the elastic member (127) are respectively connected to the handles (125) of the two pliers (121) to drive the two jaws to close.

3. The clamp-type rope clamp device according to claim 2, characterized in that: The elastic member (127) is arranged near the connection position between the connecting rope (20) and the handle (125), and a spring seat (125a) is provided inside the handle (125). The two ends of the elastic member (127) are respectively connected to the spring seats (125a) on the two handles (125).

4. The clamp-type rope clamp device according to claim 1, characterized in that: The ends of the jaws (122) of the two jaw bodies (121) away from the handle (125) are respectively provided with a jaw hook (123), and the jaw hook (123) and the jaws (122) are surrounded to form the rope clamping opening (11).

5. The clamp-type rope clamp device according to claim 4, characterized in that: The clamp hooks (123) on the two clamp bodies (121) are extended toward each other, the clamp hooks (123) are located at the end of the opening side of the jaws (122), and a step surface is formed between the clamp hooks (123) and the end surface of the jaws (122).

6. The clamp-type rope clamp device according to claim 4, characterized in that: An anti-skid pad (124) is provided at one end of the jaws (122) close to the jaw hook (123), and the anti-skid pad (124) is provided with anti-skid lines (124a) extending horizontally.

7. The clamp-type rope clamp device according to claim 1, characterized in that: A through hole (126) is provided on one end of the handle (125) away from the jaws (122). The through hole (126) extends along the height direction of the handle and passes through the end of the handle (125) from top to bottom. The connecting rope (20) is passed through the through hole (126).

8. An elevator rescue system, characterized in that: The elevator rescue system comprises the clamp-type rope clamp device (10) according to any one of claims 1 to 7; the elevator rescue system further comprises: A reeling member (30) is connected to the connecting rope (20) and can rotate around its own axis to reel in the connecting rope (20); A driving member (40) for driving the winding member (30) to rotate; A transmission deceleration device (50) is connected to the output shaft of the winding member (30) and the driving member (40) and is used to reduce the rotation speed of the output shaft and transmit it to the rotation of the winding member (30).

9. The elevator rescue system according to claim 8, characterized in that: The transmission reduction device (50) comprises a small gear set (51) and a large gear set (52), wherein the small gear set (51) is connected to the output shaft of the driving member (40), and the large gear set (52) is connected to the winding member (30), and the small gear set (51) and the large gear set (52) are meshed for transmission.

10. The elevator rescue system according to claim 9, characterized in that: The driving member (40) comprises a rotating disk (41) and a handle (43) provided on the rotating disk (41); the pinion gear set (51) is connected to the rotating disk (41) and rotates coaxially.

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