Elevator car device

Abstract

The invention discloses an elevator car device which comprises a car body, and the car body slides along an elevator track. The outer framework structure is installed outside the lift car body and used for being matched with the traction steel wire rope to achieve traction of the lift car body; the number of the locking devices is two, and the two locking devices are located on the two sides of the lift car body correspondingly and fixed to the outer framework structure; the two energy absorption rod sets are arranged up and down, the upper energy absorption rod set and the lower energy absorption rod set are staggered front and back, and the two ends of the energy absorption rod sets are inserted into the locking devices on the two sides correspondingly so that the locking devices can be passively excited when an elevator rushes to the top or falls off. After being excited, the locking device is in frictional contact with the inner wall of the elevator shaft so as to brake the car body; the device has multiple energy absorption buffering and emergency manual locking functions and is high in structural stability.

Description

TECHNICAL FIELD

[0001] The present application relates to an elevator car device. BACKGROUND

[0002] As an indispensable vertical transportation tool in high-rise buildings, the running safety of the elevator is directly related to the safety of the user's life and property. The safety protection mechanism of the existing elevator car mainly relies on the buffer at the bottom of the elevator shaft and the limit switch at the top. However, there are still many deficiencies in practical application: first, when the elevator hits the top or falls, the single buffer device has limited energy absorption effect, and it is difficult to completely offset the huge impact energy, which may cause the car body to deform and threaten the safety of the passengers in the car; second, the existing car lacks a reliable emergency manual locking mechanism. When the elevator fails to stop between floors and external rescue is delayed, the car may move again due to subsequent accidents (such as hitting the top or falling), further increasing the danger; third, the traditional car's traction and bearing structure directly acts on the car body, which may cause the car body to deform and affect the structural stability and service life after long-term operation.

[0003] In view of the above problems, it is urgent to develop an elevator car device with multiple energy absorption and buffering, emergency manual locking functions and high structural stability to make up for the defects of the prior art. SUMMARY

[0004] The technical problem to be solved by the present application is to provide an elevator car device with multiple energy absorption and buffering, emergency manual locking functions and high structural stability.

[0005] To solve the above problems, the technical scheme adopted by the present application is as follows: An elevator car device, comprising, a car body, which slides along an elevator track; an outer frame structure, which is mounted on the outside of the car body and cooperates with the traction steel wire rope to realize the traction of the car body; a locking device, which is provided with two, respectively located on both sides of the car body, and fixed with the outer frame structure; an energy absorption rod group, which is provided with two upper and lower, and the upper and lower energy absorption rod groups are staggered front and back, and the two ends of the energy absorption rod group are respectively inserted into the locking device on both sides, so as to passively activate the locking device when the elevator hits the top or falls, and the locking device is activated and in friction contact with the inner wall of the elevator shaft to realize the stop of the car body; a hand drive device, which is provided with two, respectively located at the inner wall of the car body on both sides, to actively drive the locking device and realize the in-situ parking of the car body when the elevator fails.

[0006] Preferably, the car body comprises an upper frame, a lower frame, four columns, a connecting rod, side plates, a top plate and a bottom plate, the columns are fixedly installed between the upper frame and the lower frame, the side plates are installed between two adjacent columns, a door frame is installed on the front side plate, the connecting rod is connected between the upper frame and the lower frame, and the connecting rod is located inside the side plate and fixed with the side plate; the top plate is installed inside the upper frame to close the upper frame, and the bottom plate is installed inside the lower frame to close the lower frame.

[0007] Preferably, the exoskeleton structure comprises an outer frame, a first connecting rod and a lifting plate, the outer frame is vertically arranged, two outer frames are arranged in parallel at the front and back, and the upper frame and the lower frame are fixedly installed inside the outer frame; the outer frame limits the upward movement of the top plate and the downward movement of the bottom plate; a plurality of first connecting rods are arranged, and the first connecting rods are fixedly installed between the two outer frames; a protruding portion is arranged at the middle position of the top of the outer frame, the protruding portion forms an installation gap with the upper frame, the lifting plate is fixedly installed between the two outer frames, the connecting plate passes through the protruding portion, and the end of the connecting plate away from the lifting plate is fixed with the upper frame; a vertical rope passing hole is arranged on the surface of the lifting plate, and the traction steel wire rope passes through the rope passing hole; the rope passing hole is located at the middle position of the lifting plate and is dislocated with the upper energy-absorbing rod group.

[0008] Preferably, the locking device comprises a box body, a box cover, a locking plate, a guide rod, a driving block and a spring, the box body is fixed between the two outer frames, assembly openings are arranged at the top and bottom of the box body in a dislocated manner, the energy-absorbing rod group is inserted through the assembly openings, locking screws are screwed into the side surfaces of the outer frames, and the energy-absorbing rod group is fixed after the locking screws are screwed in; the side away from the car body of the box body is an open side, the box cover is detachably installed at the open side of the box body, a through guide hole is arranged on the surface of the box cover, and two or more guide rods are arranged in parallel, the number of guide holes corresponds to the number of guide rods, one end of the guide rod is fixed with the locking plate after extending to the outside of the box cover, and the other end of the guide rod is fixed with the driving block after being inserted into the box body; the spring is sleeved on the guide rod, under the action of the spring, the guide rod is displaced towards the box body, so that the locking plate is attached to the box cover in a normal state; the upper and lower sides of the driving block are force inclined surfaces; the energy-absorbing rod group acts on the force inclined surfaces after being impacted, so that the driving block is displaced towards the box cover, and then the locking plate is rubbed with the elevator shaft wall to form the locking of the car body.

[0009] Preferably, the hand drive device comprises an embedded inner box, a drive hand wheel, a cover plate and an emergency stop switch, the inner box is embedded in the side plate and corresponds to the box, a threaded sleeve corresponding to the drive block is arranged at the inner end face of the inner box, a drive screw is arranged at the shaft center of the drive hand wheel, the drive screw is threadedly connected with the threaded sleeve, and a through hole for inserting the drive screw is formed in the end face of the box; when the drive screw is displaced towards the box, the drive block is pushed to be displaced towards the box cover, so as to actively push out the locking plate; the emergency stop switch is installed on the inner end face of the inner box, and the drive hand wheel is rotated inwards to trigger the emergency stop switch, so that the elevator is powered off, and an alarm is triggered at the same time.

[0010] Preferably, the cover plate is a tempered glass cover plate, and a safety hammer is arranged in the car of the elevator, and the tempered glass cover plate is broken by the safety hammer.

[0011] Preferably, the energy absorption rod group comprises an anti-collision rod, an energy absorption box and a side rod, the anti-collision rod is bent vertically downwards at both ends to form a connecting portion, the energy absorption box is connected between the connecting portion and the side rod through bolts, the lower end of the side rod is provided with an arc-shaped impact portion, the locking screw is screwed in to fix the side rod, and at this time, the impact portion is kept at a distance from the drive block; the anti-collision rod and the car body are kept at a buffer distance of more than 80 cm; when the anti-collision rod is impacted, the energy absorption box is compressed, then continues to move downwards to push out the drive block, and moves downwards to be limited by the inner wall of the box, the anti-collision rod is kept at a safety gap of more than 10 cm from the car body.

[0012] Preferably, the bottom of the connecting portion is provided with a guide rod, the upper end of the side rod is provided with a guide hole, and the guide rod is inserted into the guide hole to play a guiding role when the energy absorption box is folded and compressed.

[0013] Preferably, the end face of the anti-collision rod towards the car body is provided with an energy absorption block, and the energy absorption block corresponds to the first connecting rod.

[0014] Preferably, the middle part of the first connecting rod is provided with a deformation groove.

[0015] The beneficial effects of the present application are: 1. Double energy absorption guarantee, excellent buffering effect: through the design of the upper and lower front and rear staggered energy absorption rod groups, the energy absorption box, the energy absorption block and the deformation groove of the first connecting rod, multi-stage energy absorption (energy absorption box collapse energy absorption second energy absorption of side rod displacement elastic energy absorption of energy absorption block and first connecting rod) during impact / falling is realized, and the effect of the elevator shaft bottom buffer is coordinated, so that the impact energy absorption efficiency is greatly improved, the car body is effectively prevented from deforming, and the safety of the people in the cabin is guaranteed.

[0016] 2. Dual-mode locking mechanism with higher safety: It has two modes of passive locking (energy-absorbing rod group triggers when hitting or falling) and active locking (manual driving when failure stops), passive locking can achieve quick stop when impact, active locking can avoid secondary displacement after failure stop, and the manual driving device can automatically cut off the power supply and alarm after triggering, improving the timeliness of emergency disposal.

[0017] 3. Strong structural stability and long service life: The outer frame structure independently bears the traction load, avoiding direct traction force on the car body, reducing the load deformation of the car body; the cage structure of the outer frame and the car body cooperates to strengthen the circumference, further improving the carrying capacity and anti-deformation ability of the overall structure.

[0018] 4. Convenient and safe emergency operation: The manual driving device adopts embedded design, and the tempered glass cover plate needs to be broken by a special safety hammer, which can prevent misoperation; the operation process is simple and does not require professional skills, which is convenient for cabin personnel to quickly realize car locking in emergency situations and saves time for rescue. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] Figure 1 The structure diagram of the present application when cooperating with the traction steel wire rope; Figure 2 The perspective view of the device; Figure 3 The enlarged view of A; Figure 4 The cross-sectional view of the locking device; Figure 5 The perspective view of the locking plate; Figure 6 The enlarged view of B; Figure 7 The structure explosion diagram of the energy-absorbing rod group.

[0021] Explanation of markings in the diagram: 1-Car body, 11-Upper frame, 12-Lower frame, 13-Column, 14-Connecting rod, 15-Side plate, 150-Door frame, 16-Top plate, 17-Bottom plate, 2-External frame structure, 21-External frame, 210-Raised part, 22-First connecting rod, 221-Deformation groove, 23-Lifting plate, 230-Connecting plate, 231-Rope hole, 3-Locking device, 31-Car body, 310-Assembly port, 311-Locking screw, 32-Car cover, 3 3-Locking plate, 333-Through hole, 34-Guide rod, 35-Drive block, 351-Force-bearing inclined surface, 36-Spring, 4-Energy-absorbing rod assembly, 41-Anti-collision rod, 411-Connecting part, 412-Guide rod, 42-Energy-absorbing box, 43-Side rod, 431-Guide hole, 44-Impact part, 46-Energy-absorbing block, 5-Hand drive device, 51-Inner box, 52-Drive handwheel, 53-Cover plate, 54-Emergency stop switch, 55-Threaded sleeve, 56-Drive screw, 8-Traction steel wire rope. Detailed Implementation

[0022] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0023] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0024] In the description of this invention, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0025] Furthermore, in the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] See Figure 1 An elevator car assembly is shown, comprising: The car body 1 slides along the elevator track; the top of the car body 1 is used to install components such as the top control box and door opener, and the two sides of the car body 1 are used to install components such as safety clamps and guide shoes.

[0028] The outer frame structure 2 is installed on the outside of the car body 1 and is used to cooperate with the traction steel wire rope 8 to realize the traction of the car body; the outer frame structure 2 is used for traction load bearing and to reinforce the circumferential exterior of the car body 1.

[0029] The locking device 3 is provided in two parts, located on both sides of the car body 1 and fixed to the outer frame structure 2. The locking device 3 is used to generate braking force after contacting the two side walls of the elevator shaft.

[0030] The energy-absorbing rod assembly 4 has two sets, one on the top and one on the bottom, with the two sets staggered front to back. The two ends of the energy-absorbing rod assembly 4 are respectively inserted into the locking devices 3 on both sides, so that the locking devices 3 are passively activated when the elevator overshoots or falls. After being activated, the locking devices 3 make frictional contact with the inner wall of the elevator shaft to stop the car body 1. The function of the energy-absorbing rod assembly 4 is to buffer the collision when the elevator overshoots or falls.

[0031] Among them, the upper energy-absorbing rod group 4 is used to impact the machine room. The energy-absorbing rod group 4 absorbs the impact energy through the collapse deformation, so as to ensure the integrity of the car body 1 as much as possible.

[0032] The lower energy-absorbing rod group 4 corresponds to the buffer at the bottom of the elevator shaft, so that when the car body 1 falls, it can absorb energy by impacting the buffer through the lower energy-absorbing rod group 4. The buffer itself can compress and absorb energy, and together with the collapse deformation of the energy-absorbing rod group 4, it can ensure the integrity of the car body 1.

[0033] Two manual drive devices 5 are provided, located on the inner walls of both sides of the car body 1 respectively, to actively drive the locking device 3 in case of elevator malfunction, so as to stop the car body 1 in its original position.

[0034] The function of the manual drive device 5 is to manually control the stopping of the car body 1. It is used when the elevator stops between floors and cannot run, and the arrival time of external rescue personnel is long. In order to ensure safety, the car body 1 can be locked by the manual drive device 5 to prevent the elevator from rushing to the top or falling.

[0035] The manual drive device 5 is linked to the elevator control cabinet and the main control room. After the manual drive device 5 is activated, it will cut off the power supply to the elevator and trigger an alarm in the main control room, allowing the staff in the main control room to handle the situation in a timely manner.

[0036] See Figure 2 As shown, the car body 1 includes an upper frame 11, a lower frame 12, columns 13, connecting rods 14, side plates 15, a top plate 16, and a bottom plate 17. Four columns 13 are provided, and each column 13 is fixedly installed between the upper frame 11 and the lower frame 12. The side plates 15 are installed between two adjacent columns 13, and a door frame 150 is installed at the front of the side plate 15. The connecting rods 14 connect the upper frame 11 and the lower frame 12, and are located inside the side plates 15 and fixed to them. The top plate 16 is installed inside the upper frame 11 to close it, and the bottom plate 17 is installed inside the lower frame 12 to close it.

[0037] In the above technical solution, the upper frame 11, lower frame 12, column 13 and connecting rod 14 are used to form a cage structure with sufficient load-bearing capacity.

[0038] The car is enclosed by side panels 15, top panel 16 and bottom panel 17 to form a passenger car.

[0039] See Figure 1 , Figure 2 and Figure 3As shown, the outer frame structure 2 includes an outer frame 21, first connecting rods 22, and a lifting plate 23. The outer frame 21 is vertically arranged, and two outer frames 21 are arranged parallel to each other front and rear. The upper frame 11 and the lower frame 12 are welded or riveted to the inner side of the outer frame 21. The outer frame 21 limits the upward movement of the top plate 16 and the downward movement of the bottom plate 17. Multiple first connecting rods 22 are provided, and multiple first connecting rods 22 are welded and fixedly installed between the two outer frames 21. A raised portion 210 is provided at the middle position of the top of the outer frame 21, and the raised portion 210 is connected to the upper frame 11. An installation gap is formed between the two outer frames 21. The two sides of the hoisting plate 23 are integrally stamped with connecting plates 230. The hoisting plate 23 is welded and fixedly installed between the two outer frames 21. The connecting plate 230 passes through the raised part 210. The end of the connecting plate 230 away from the hoisting plate 23 is riveted or welded to the upper frame 11. A vertical through-hole 231 is provided on the surface of the hoisting plate 23. The traction steel wire rope passes through the through-hole 231. The through-hole 231 is located in the middle of the hoisting plate 23 and is offset from the energy-absorbing rod group 4 above to avoid the energy-absorbing rod group 4 from affecting the movement of the traction steel wire rope.

[0040] In the above technical solution, two outer frames 21 are used to strengthen the external structure of the car body 1, so as to greatly avoid the deformation of the car body 1 when it falls or hits the top.

[0041] Meanwhile, the load during traction is borne by the lifting plate 23, rather than directly on the car body 1. The advantage of this design is that it can reduce the load-bearing deformation of the car body 1.

[0042] See Figure 2 , Figure 4 and Figure 5As shown, the locking device 3 includes a housing 31, a cover 32, a locking plate 33, a guide rod 34, a drive block 35, and a spring 36. The housing 31 is fixed between the two outer frames 21 by welding. The top and bottom of the housing 31 are staggered with assembly ports 310. The advantage of the staggered arrangement is that it provides more vertical movement space for the energy-absorbing rod assembly 4. The energy-absorbing rod assembly 4 is inserted through the assembly port 310 and can slide along the assembly port 310 to mitigate the impact force. A locking screw 311 is screwed into the side of the outer frame 21. When the energy-absorbing rod assembly 4 is impacted, it moves after breaking through the locking force of the locking screw 311. The locking screw 311 then screws in to fix the energy-absorbing rod assembly 4. The side of the car body 31 away from the car body 1 is the opening side. The car cover 32 is detachably installed on the opening side of the car body 31 by screws. A through guide hole is provided on the surface of the car cover 32. Two or more guide rods 34 are arranged in parallel. The number of guide holes corresponds one-to-one with the number of guide rods 34. One end of the guide rod 34 extends to the outside of the car cover 32 and is welded to the locking plate 33. The other end of 4 is inserted into the housing 31 and then welded and fixed to the drive block 35; the spring 36 is sleeved on the guide rod 34. Under the action of the spring 36, the guide rod 34 moves towards the housing 31, so that the locking plate 33 is in contact with the housing cover 32 in the normal state, so that the locking plate 33 is separated from the inner wall of the elevator shaft in the normal state, without affecting the normal operation of the elevator; the upper and lower sides of the drive block 35 are both force-bearing inclined surfaces 351; after the energy-absorbing rod group 4 is impacted, it acts on the force-bearing inclined surface 351, so that the drive block 35 moves towards the housing cover 32, and then the locking plate 33 forms a lock on the car body 1 by friction with the elevator shaft wall.

[0043] In the above technical solution, the impact force of the energy-absorbing rod group 4 drives the drive block 35 to quickly displace the cover 32 and compress the spring 36, so that the locking plate 33 presses against the elevator shaft wall to brake the car body 1.

[0044] The staggered energy-absorbing rod assembly 4 is used, which allows the energy-absorbing rod assembly 4 to have a larger vertical movement space to absorb impact force.

[0045] Anti-slip teeth are provided on the outer surface of the locking plate 33 to increase anti-slip properties.

[0046] See Figure 4 and Figure 6As shown, the hand-drive device 5 includes an embedded inner housing 51, a drive handwheel 52, a cover plate 53, and an emergency stop switch 54. The inner housing 51 is embedded in the side plate 15 and corresponds to the housing 31. A threaded sleeve 55 corresponding to the drive block 35 is provided on the inner end face of the inner housing 51. A drive screw 56 is provided at the axis of the drive handwheel 52. The drive screw 56 is threadedly engaged with the threaded sleeve 55. A through hole 333 for inserting the drive screw 56 is provided on the end face of the housing 31. When the drive screw 56 moves towards the housing 31, it pushes the drive block 35 towards the cover 32 to actively push out the locking plate 33. The emergency stop switch 54 is installed on the inner end face of the inner housing 51. After the drive handwheel 52 rotates inward, it triggers the emergency stop switch 54 to cut off the power to the elevator and trigger an alarm.

[0047] The emergency stop switch 54 is electrically connected to the elevator control cabinet and also to the alarm system in the main control room.

[0048] When the drive handwheel 52 is tightened, the emergency stop switch 54 is activated, causing the elevator to lose power and triggering an alarm in the main control room.

[0049] When the drive handwheel 52 is tightened, the drive block 35 is pushed out, so that the locking plate 33 contacts the inner wall of the elevator shaft and mechanically stops the elevator car.

[0050] The cover plate 53 is a tempered glass cover plate. A safety hammer is installed in the elevator car to break the tempered glass cover plate.

[0051] The tempered glass design reduces the risk of breakage due to abnormal contact.

[0052] Only a strike by the safety hammer inside the car can cause the cover plate 53 to break.

[0053] Made with tempered glass, it breaks into small particles, reducing the risk of personal injury.

[0054] See Figure 2 , Figure 4 and Figure 7As shown, the energy-absorbing rod assembly 4 includes a crash bar 41, an energy-absorbing box 42, and a side bar 43. The two ends of the crash bar 41 are bent vertically downward to form a connecting part 411. The energy-absorbing box 42 is bolted between the connecting part 411 and the side bar 43. The lower end of the side bar 43 is provided with an arc-shaped impact part 44. The locking screw 311 is screwed in to fix the side bar 43. At this time, the impact part 44 and the drive block 35 are kept at a distance. The crash bar 41 and the car body 1 maintain a buffer distance of more than 80cm. When the crash bar 41 is impacted and compresses the energy-absorbing box 42, and then continues to move down until the impact part 44 pushes out the drive block 35 and moves down to be limited by the inner wall of the car body 31, the crash bar 41 leaves a safety gap of at least 10cm with the car body 1.

[0055] When subjected to impact, the energy-absorbing rod assembly 4 first absorbs energy through the collapse of the energy-absorbing box 42, and then absorbs energy a second time by breaking through the locking force of the locking screw 311 through the vertical displacement of the side rod 43.

[0056] When the side rod 43 moves downward, it will drive the locking block 33 to push outward, thereby achieving a mechanical stop of the car body 1.

[0057] Furthermore, after the side rod 43 moves down, it will press against the drive block 35 to prevent the drive block 35 from elastically resetting.

[0058] See Figure 7 As shown, a guide rod 412 is provided at the bottom of the connecting part 411, and a guide hole 431 is provided at the upper end of the side rod 43. The guide rod 412 is inserted into the guide hole 431 to play a guiding role when the energy-absorbing box 42 is folded and compressed to absorb energy.

[0059] In the above technical solution, the cooperation between the guide rod 412 and the guide hole 431 can guide the energy absorption box 42 so that the anti-collision rod 41 will not be deflected when it collapses, and the collision force can be effectively transmitted to the side rod 43.

[0060] See Figure 2 and Figure 3 As shown, an energy-absorbing block 46 is provided on the end face of the anti-collision bar 41 facing the car body 1, and the energy-absorbing block 46 corresponds to the first connecting rod 22.

[0061] The first connecting rod 22 has a through deformation groove 221 in the middle.

[0062] In the above technical solution, elastic energy absorption is achieved through the cooperation of the energy-absorbing block 46 and the first connecting rod 22, thus achieving the final energy absorption effect.

[0063] Work process 1. Normal operating state: Under the action of spring 36, locking plate 33 is in contact with box cover 32 and separated from the inner wall of elevator shaft, which does not affect the normal lifting and lowering of elevator; drive handwheel 52 of manual drive device is in the initial position, emergency stop switch 54 is not triggered, and elevator is powered and running normally.

[0064] 2. Overhead Emergency State: When the elevator overshoots the top, the anti-collision bar 41 in the upper energy-absorbing bar group first impacts the machine room. The energy-absorbing box 42 collapses and deforms under the impact to absorb some of the energy. As the impact continues, the side bar 43 breaks through the locking force of the locking screw 311 and moves downward. Its impact part 44 acts on the force-bearing inclined surface 351 of the drive block 35, driving the drive block 35 to move towards the car cover 32, thereby pushing the locking plate 33 to make close contact with the elevator shaft wall, and achieving braking of the car body 1 through friction. At the same time, the energy-absorbing block 46 of the anti-collision bar 41 contacts the first connecting rod 22, and cooperates with the deformation groove 221 of the first connecting rod 22 to achieve secondary elastic energy absorption, ensuring that the car body 1 does not undergo violent deformation.

[0065] 3. Fall Emergency: When the elevator falls, the lower energy-absorbing rod group anti-collision rod 41 first impacts the buffer at the bottom of the elevator shaft. The buffer compresses and absorbs energy, while the energy-absorbing box 42 collapses and absorbs energy. The side rod 43 breaks through the locking force of the locking screw 311 and moves upward. The impact part 44 acts on the force-bearing inclined surface 351 of the drive block 35, driving the locking plate 33 to brake against the elevator shaft wall. Subsequently, the residual energy is further absorbed through the cooperation of the energy-absorbing block 46 and the first connecting rod 22 to ensure the integrity of the car body.

[0066] 4. Manual locking in case of malfunction: When the elevator stops between floors due to a malfunction, the people inside the cabin can use a safety hammer to break the tempered glass cover 53, rotate the drive handwheel 52, and drive the screw 56 to move towards the cabin 31 and push the drive block 35, so that the locking plate 33 contacts the elevator shaft wall to achieve mechanical locking; when the drive handwheel 52 is rotated to the limit position, the emergency stop switch 54 is triggered, the elevator is powered off and an alarm signal is sent to the central control room to wait for rescue.

[0067] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An elevator car arrangement, characterized by: The utility model relates to an elevator safety device, which comprises the following components. A car body (1) slides along an elevator track; An outer frame structure (2) is installed outside the car body (1) to cooperate with a traction steel wire rope (8) to realize the traction of the car body; Two locking devices (3) are arranged on both sides of the car body (1) and are fixed with the outer frame structure (2); Two energy-absorbing rod groups (4) are arranged above and below the car body (1) and are staggered front and back, and the two ends of the energy-absorbing rod groups (4) are inserted into the locking devices (3) on both sides, so that the locking devices (3) are passively activated when the elevator hits the top or falls, and the locking devices (3) are in frictional contact with the inner wall of the elevator shaft to realize the stopping of the car body (1); Two hand drive devices (5) are arranged on the inner walls of both sides of the car body (1) to actively drive the locking devices (3) and realize the in-situ stopping of the car body (1) when the elevator fails.

2. The elevator car arrangement according to claim 1, characterized by: The car body (1) comprises an upper frame (11), a lower frame (12), a stand column (13), a connecting rod (14), a side plate (15), a top plate (16), and a bottom plate (17), the stand column (13) is divided into four, the stand column (13) is fixedly installed between the upper frame (11) and the lower frame (12), the side plate (15) is installed between two adjacent stand columns (13), a door frame (150) is installed at the front side plate (15), the connecting rod (14) is connected between the upper frame (11) and the lower frame (12), the connecting rod (14) is located inside the side plate (15) and is fixed with the side plate (15), the top plate (16) is installed inside the upper frame (11) to close the upper frame (11), and the bottom plate (17) is installed inside the lower frame (12) to close the lower frame (12).

3. The elevator car arrangement according to claim 2, characterized in that: Said exoskeleton structure (2) includes outer frame (21), first connecting rod (22) and hoisting plate (23), the outer frame (21) is vertically arranged, two outer frames (21) are arranged in parallel in front and back, and the upper frame (11) and the lower frame (12) are fixedly installed on the inner side of the outer frame (21); the outer frame (21) limits the upward movement of the top plate (16) and the downward movement of the bottom plate (17); the first connecting rod (22) is provided with a plurality of first connecting rods (22), and the plurality of first connecting rods (22) are fixedly installed between the two outer frames (21); the top middle position of the outer frame (21) is provided with a raised portion (210), the raised portion (210) and the upper frame (11) form an installation gap, the both sides of the hoisting plate (23) are provided with connecting plates (230), the hoisting plate (23) is fixedly installed between the two outer frames (21), the connecting plate (230) passes through the raised portion (210), and the end, away from the hoisting plate (23), of the connecting plate (230) is fixed with the upper frame (11); a vertically penetrating rope hole (231) is arranged on the plate surface of the hoisting plate (23), and the traction steel wire rope passes through the rope hole (231); the rope hole (231) is located at the middle position of the hoisting plate (23) and is dislocated with the upper energy-absorbing rod group (4).

4. The elevator car arrangement according to claim 3, characterized by: The locking device (3) comprises a box body (31), a box cover (32), a locking plate (33), a guide rod (34), a driving block (35) and a spring (36), the box body (31) is fixed between the two outer frames (21), assembly openings (310) are arranged at the top and bottom of the box body (31) in a staggered manner, the energy-absorbing rod group (4) is inserted through the assembly openings (310), locking screws (311) are screwed into the side of the outer frame (21), and the energy-absorbing rod group (4) is fixed after the locking screws (311) are screwed in; the side of the box body (31) away from the car body (1) is an open side, the box cover (32) is detachably mounted at the open side of the box body (31), a guide hole is arranged through the plate surface of the box cover (32), two or more guide rods (34) are arranged in parallel, the number of guide holes corresponds to the number of guide rods (34), one end of the guide rod (34) extends to the outside of the box cover (32) and is fixed with the locking plate (33), the other end of the guide rod (34) is inserted into the box body (31) and is fixed with the driving block (35); the spring (36) is sleeved on the guide rod (34), under the action of the spring (36), the guide rod (34) is displaced towards the box body (31), so that the locking plate (33) is attached to the box cover (32) in the normal state; the upper and lower sides of the driving block (35) are force inclined surfaces (351); the energy-absorbing rod group (4) is acted on the force inclined surface (351) after being impacted, so that the driving block (35) is displaced towards the box cover (32), and then the locking plate (33) is rubbed with the elevator shaft wall to form locking of the car body (1).

5. The elevator car arrangement according to claim 4, characterized by: The hand driving device (5) comprises an embedded inner box body (51), a driving hand wheel (52), a cover plate (53) and an emergency stop switch (54), the inner box body (51) is embedded in the side plate (15) and corresponds to the box body (31), a threaded sleeve (55) corresponding to the driving block (35) is arranged at the inner end face of the inner box body (51), a driving screw rod (56) is arranged at the shaft center of the driving hand wheel (52), the driving screw rod (56) is threadedly matched with the threaded sleeve (55), and a through hole (333) for inserting the driving screw rod (56) is formed in the end face of the box body (31); when the driving screw rod (56) is displaced towards the box body (31), the driving block (35) is pushed to be displaced towards the box cover (32), so as to actively push out the locking plate (33); the emergency stop switch (54) is mounted on the inner end face of the inner box body (51), the driving hand wheel (52) is rotated inwards to trigger the emergency stop switch (54), so that the elevator is powered off, and an alarm is triggered at the same time.

6. The elevator car arrangement according to claim 5, characterized by: The cover plate (53) is a tempered glass cover plate, a safety hammer is provided in the car of the elevator, and the tempered glass cover plate is broken by the safety hammer.

7. The elevator car arrangement of claim 4, characterized by: The energy-absorbing rod group (4) comprises a collision-preventing rod (41), an energy-absorbing box (42) and a side rod (43), both ends of the collision-preventing rod (41) are bent vertically downward to form a connecting part (411), the energy-absorbing box (42) is connected between the connecting part (411) and the side rod (43) through bolts, the lower end of the side rod (43) is provided with an arc-shaped impact part (44), the locking screw (311) is screwed in to fix the side rod (43), at this time, the impact part (44) keeps a distance from the driving block (35); the collision-preventing rod (41) keeps a buffer distance of more than 80 cm from the car body (1); when the collision-preventing rod (41) is impacted and compresses the energy-absorbing box (42), then continues to move downward to push out the driving block (35), and moves downward to be limited by the inner wall of the box body (31), the collision-preventing rod (41) keeps a safety gap of more than 10 cm from the car body (1).

8. The elevator car arrangement according to claim 7, characterized by: The bottom of the connecting part (411) is provided with a guide rod (412), the upper end of the side rod (43) is provided with a guide hole (431), the guide rod (412) is inserted into the guide hole (431) to play a guiding role when the energy-absorbing box (42) is folded and compressed to absorb energy.

9. The elevator car arrangement of claim 7, characterized by: The end of the collision-preventing rod (41) facing the car body (1) is provided with an energy-absorbing block (46), the energy-absorbing block (46) corresponds to the first connecting rod (22).

10. The elevator car arrangement according to claim 9, characterized by: The middle part of the first connecting rod (22) is provided with a deformation groove (221) penetrating through.

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