Underground emergency hanging chair

Abstract

The utility model discloses an underground emergency hanging chair, which is characterized in that the hanging chair is arranged to be in a sleeping type, so that an occupational injury person can lie flat, meanwhile, a cross beam is arranged to be adjustable in a sliding manner, and at an initial position, a first sliding beam and a second sliding beam are limited by a limiting block of a first limiting device and are propped against a boss to form a whole to be arranged on the boss; during transportation according to different figures of people, an adjusting block is pressed, meanwhile, the limiting block is driven to press, a first sliding beam and a second sliding beam are made to slide, a boss is pushed upwards, and the limiting block and the L-shaped sliding block are driven to move upwards; the first sliding beam and the second sliding beam are lower than the vertical ends of the two sides of the boss, meanwhile, the transverse end cut-off end of the L-shaped sliding block abuts against the limiting plate, and a limiting block of the second limiting device abuts against the top ends of the first sliding beam and the second sliding beam for limiting, so that the first sliding beam, the second sliding beam and the boss are spliced, and the stability is ensured; meanwhile, during moving, a damping rod and a connecting rod of the damping device rotate to drive a damping spring to stretch to relieve vibration, so that vibration during moving is reduced, secondary injury of occupational injury personnel is avoided, and meanwhile, a wind shielding curtain is arranged at the moving end and used for shielding wind cold along a line.

Description

Technical Field

[0001] The utility model relates to the technical field of underground single-rail hoist equipment, in particular to an underground emergency hanging chair. Background Technique

[0002] Originally, when workers were physically unwell or suffered from work-related injuries, they could only be supported by others to take the hanging chair of the overhead personnel carrier. There were many inconveniences along the way. Traditional hanging chairs could not provide sufficient safety and comfort under these conditions. Moreover, due to different obesity levels of personnel, it was impossible to meet the personnel transportation needs. At the same time, slight vibrations during transportation would exacerbate the harm to the body. In view of the special situations that may occur during normal underground production work and the health problems of workers, improving the design of the hanging chair can effectively enhance the emergency response ability and work comfort, thereby ensuring the safety and health of workers during work. However, due to different obesity levels of personnel, it was impossible to meet the personnel transportation needs. At the same time, slight vibrations during transportation would exacerbate the harm to the body. Content of the Utility Model

[0003] The purpose of the utility model is to provide an underground emergency hanging chair to solve the problems that originally, when workers were physically unwell or suffered from work-related injuries, they could only be supported by others to take the hanging chair of the overhead personnel carrier. There were many inconveniences along the way. Traditional hanging chairs could not provide sufficient safety and comfort under these conditions. Moreover, due to different obesity levels of personnel, it was impossible to meet the personnel transportation needs. At the same time, slight vibrations during transportation would exacerbate the harm to the body.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an underground emergency hanging chair, installed on a single-rail hoist track, including two fixed rods, telescopic rods, shock-absorbing devices, adjusting crossbeams and fixed side beams.

[0005] The fixed rods are arranged in a T shape. The top of the vertical end of the T shape is connected to the pulley group of the single-rail hoist track. The two ends of the horizontal end of the fixed rod are respectively inserted with telescopic rods and are slidably matched with the fixed rod. The other ends of the telescopic rods are provided with downwardly extending parts, and the extending parts are respectively fixedly connected to the four corners of the top of the adjusting crossbeam. A fixed side beam is fixedly connected between the adjusting crossbeams.

[0006] The adjusting crossbeam includes a boss, a first sliding beam, a second sliding beam, and a limiting device. A convex chute is formed along the surface of the boss. Two first limiting grooves are symmetrically formed at the horizontal ends of the top of the convex chute. At the top of the vertical end faces on the left and right sides, second limiting grooves are symmetrically formed respectively. Limiting devices are respectively arranged in the first limiting groove and the second limiting groove. L-shaped sliding blocks are arranged on both the first sliding beam and the second sliding beam. The L-shaped sliding blocks are slidably engaged with the convex chute. The vertical ends of the L-shaped sliding blocks are respectively located on the corresponding end faces of the first sliding beam and the second sliding beam, and do not exceed the tops of the first sliding beam and the second sliding beam. The horizontal ends are connected to the bottoms of the first sliding beam and the second sliding beam. The length of the horizontal end of the L-shaped sliding block is the same as the length of the two horizontal ends of the convex chute. The cut-off end of the horizontal end of the L-shaped sliding block is used in cooperation with the limiting device in the first limiting groove. Fixed side beams are respectively connected between the first sliding beams and the second sliding beams on the left and right sides. An elastic chair surface is arranged between the two fixed side beams.

[0007] The limiting device includes an adjusting block, a return spring, and a limiting block. The adjusting blocks are symmetrically installed in a first linkage groove and a second linkage groove formed on the left and right sides of the boss, and are respectively located at the front and rear ends of the boss. The adjusting blocks are arranged in the first linkage groove and the second linkage groove. The two adjusting blocks are connected by a shaft. A limiting block is fixedly connected to the shaft. The limiting blocks are respectively slidably engaged in the first limiting groove and the second limiting groove. The bottom end of the adjusting block is connected with a return spring. One end abuts against the adjusting block, and the other end of the return spring abuts against the bottom end of the linkage groove.

[0008] Preferably, one end of the limiting block is arc-shaped and the other end is vertically arranged.

[0009] Preferably, the damping device is fixedly connected between the telescopic rod and the adjusting crossbeam, and includes a top plate, a damping rod, a damping spring, a bottom plate, and a connecting rod. The top plate is fixedly connected to the bottom end of the extension part of the telescopic rod. The bottom plate is fixedly connected to the top of the adjusting crossbeam. The right side of the bottom end of the top plate is hinged with a damping rod, and a pair of connecting rods are hinged to the left side end, and the connecting rods are respectively located at the front and rear ends of the top plate. The connecting rods are connected by a rod. The damping rod and the connecting rod are arranged in an X shape. The other ends of the damping rod and the connecting rod are respectively hinged to the bottom plate. A damping spring is sleeved outside the damping rod. One end of the damping spring abuts against the top plate, and the other end abuts against the bottom plate.

[0010] Preferably, it further includes a windshield curtain. The windshield curtain is an elastic mesh cloth and is arranged at the moving direction end of the hanging chair. The windshield curtain is fixedly connected to a windshield rod vertically arranged on the fixed side beam.

[0011] Preferably, it further includes a limiting plate, which is respectively arranged at the end of the convex chute of the boss and is used in cooperation with the horizontal end of the L-shaped sliding block.

[0012] Preferably, the distance between the limiting blocks in the second limiting grooves on the vertical ends on the left and right sides of the boss and the horizontal ends on the left and right sides of the boss is equal to the heights of the first sliding beam and the second sliding beam, which is used to fit the first sliding beam and the second sliding beam onto the boss.

[0013] Preferably, the elastic seat surface is composed of mesh fabric.

[0014] Preferably, the two connecting rods are arranged in parallel.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By setting the hanging chair to a sleeping and lying position, the injured workers can lie flat. At the same time, the cross beam is set to be slidably adjustable. At the initial position, the first sliding beam and the second sliding beam are limited by the limiting blocks of the first limiting device and are in contact with the boss, forming an integral structure arranged on the boss. And the vertical end of the limiting block of the limiting device is in contact with the horizontal end cut-off end of the L-shaped slider for limiting. When transporting people of different body types, press the adjusting block, and at the same time drive the limiting block to be pressed, slide the first sliding beam and the second sliding beam, and push the boss upward. Since the heights of the first sliding beam and the second sliding beam are lower than the vertical ends on both sides of the boss, and the horizontal end cut-off end of the L-shaped slider is in contact with the limiting plate, the limiting blocks of the second limiting device are in contact with the tops of the first sliding beam and the second sliding beam for limiting, splicing the first sliding beam, the second sliding beam and the boss, and ensuring stability. At the same time, drive the telescopic rod to expand and contract, increasing the use area of the hanging chair. At the same time, when moving, the shock-absorbing rods and connecting rods of the shock-absorbing device rotate, driving the shock-absorbing springs to stretch to reduce vibration, thereby reducing the vibration during movement and avoiding secondary injury to the injured workers. At the same time, a windshield curtain is arranged at the mobile end to block the cold along the journey. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 It is a schematic diagram of the adjustable cross beam structure of the present utility model.

[0019] Figure 3 It is a schematic diagram of the shock-absorbing device of the present utility model.

[0020] Figure 4 It is a schematic diagram of the cooperating structure of the boss, the first sliding beam and the second sliding beam of the present utility model.

[0021] Figure 5 It is a schematic diagram of the unfolded adjustable cross beam structure of the present utility model.

[0022] Figure 6 It is a schematic diagram of the boss structure of the present utility model.

[0023] Figure 7 Schematic diagram of the cooperating structure of the adjusting block, return spring and limiting block of the present utility model.

[0024] Figure 8 Of the present utility model Figure 2 Enlarged schematic diagram of the structure at position A.

[0025] In the figure: 1, fixed rod; 2, telescopic rod; 3, shock absorption device; 301, top plate; 302, shock absorption rod; 303, shock absorption spring; 304, bottom plate; 305, connecting rod; 4, adjusting cross beam; 401, convex platform; 402, first sliding beam; 403, second sliding beam; 404, adjusting block; 405, return spring; 406, limiting block; 407, first linkage groove; 408, second linkage groove; 5, fixed side beam; 6, elastic seat surface; 7, wind blocking rod; 8, wind blocking curtain. Specific embodiments

[0026] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0030] Embodiment 1: Please refer to Figure 1 、 2 Figures 4 - 6. An embodiment provided by the present utility model: An underground emergency hanging chair is installed on a single - rail hoist track and includes two fixed rods 1, telescopic rods 2, shock - absorbing devices 3, an adjusting cross - beam 4, and a fixed side - beam 5.

[0031] The fixed rod 1 is arranged in a T - shape. The top of the vertical end of the T - shape is connected to the pulley set of the single - rail hoist track. The fixed rod 1 provides the main support, positioning function of the hanging chair and its movement on the single - rail hoist beam track, and can ensure the safe movement and fixed position of the hanging chair on the single - rail hoist track. The two ends of the horizontal end of the fixed rod 1 are respectively inserted with telescopic rods 2, and are slidably matched with the fixed rod 1. The other end of the telescopic rod 2 is provided with a vertically downward extension part, and the extension parts are respectively fixedly connected to the four corners of the top of the adjusting cross - beam 4. The extension part of the telescopic rod 2 is fixedly connected to the adjusting cross - beam 4, supporting the telescopic function of the hanging chair. At the same time, when adjusting the adjusting cross - beam 4, the telescopic rod 2 expands and contracts to adjust the width of the hanging chair to adapt to different transportation requirements and body sizes. In the initial position, since the adjusting cross - beam 4 is limited by the limit block 406 of the limiting device, the telescopic rod 2 will not move, ensuring safety. A fixed side - beam 5 is fixedly connected between the adjusting cross - beams 4.

[0032] The adjusting crossbeam 4 includes a convex platform 401, a first sliding beam 402, a second sliding beam 403, and a limiting device. On the surface of the convex platform 401, a convex-shaped sliding groove is provided along the surface. At the top horizontal end of the convex-shaped sliding groove, two first limiting grooves are symmetrically provided. At the top of the vertical end faces on the left and right sides, second limiting grooves are symmetrically provided respectively. Limiting devices are respectively arranged in the first limiting grooves and the second limiting grooves. L-shaped sliding blocks are arranged on both the first sliding beam 402 and the second sliding beam 403. The L-shaped sliding blocks are slidably fitted in the convex-shaped sliding groove. The vertical ends of the L-shaped sliding blocks are respectively located on the corresponding end faces of the first sliding beam 402 and the second sliding beam 403, and do not exceed the tops of the first sliding beam 402 and the second sliding beam 403. The horizontal ends are connected to the bottoms of the first sliding beam 402 and the second sliding beam 403. The length of the horizontal end of the L-shaped sliding block is the same as the length of the two horizontal ends on both sides of the convex-shaped sliding groove. The cut-off end of the horizontal end of the L-shaped sliding block is used in cooperation with the limiting device in the first limiting groove. Fixed side beams 5 are respectively connected between the first sliding beam 402 and the second sliding beam 403 on the left and right sides. An elastic chair surface 6 is arranged between the two fixed side beams 5. In the initial position, through the cooperation between the limiting block 406 in the first limiting groove and the cut-off end of the horizontal end of the L-shaped sliding block, the positions of the first sliding beam 402 and the second sliding beam 403 are limited. At the same time, the L-shaped sliding blocks are in contact with each other, and the sliding blocks are in cooperation with the convex-shaped sliding groove to form a whole. When the width needs to be increased, the limiting device is opened. The horizontal ends of the L-shaped sliding blocks of the first sliding beam 402 and the second sliding beam 403 slide on the top horizontal end of the convex-shaped sliding groove. When passing through the cut-off end of the horizontal end of the convex-shaped sliding groove, the convex platform 401 is pushed upward. The vertical ends of the L-shaped sliding blocks are in cooperation with the vertical end sliding grooves on both sides of the convex platform 401, and the first sliding beam 402 and the second sliding beam 403 are arranged on the left and right horizontal ends of the convex platform 401. At the same time, the horizontal ends of the L-shaped sliding blocks are in contact with the top end faces of the left and right horizontal ends of the convex platform 401, and the cut-off ends of the L-shaped sliding blocks are in contact with the limiting plates. Since the distance between the limiting block 406 in the second limiting groove on the vertical ends on both sides of the convex platform 401 and the left and right horizontal ends of the convex platform 401 is equal to the height of the first sliding beam 402 and the second sliding beam 403, the first sliding beam 402, the second sliding beam 403 and the convex platform 401 are spliced into a whole. At the same time, through the limiting block 406 in the second limiting groove, the vertical ends of the L-shaped sliding blocks are fitted in the sliding grooves, and the setting of the limiting plates, the stability after the device is spliced is increased, ensuring the structural stability during transportation, and at the same time driving the stretched elastic chair surface 6 to be stretched.

[0033] It further includes limiting plates, which are respectively arranged at the termination ends of both sides of the sliding groove of the convex platform 401.

[0034] The elastic chair surface 6 is composed of a mesh fabric. The elastic chair surface 6 adopts a mesh fabric structure, which has good stretching performance, air permeability and softness. This design can reduce the discomfort of the occupant during long-term use.

[0035] Example 2: Please refer to Figures 4 - 8 , on the basis of Example 1, it also has the following structure:

[0036] The limiting device includes an adjusting block 404, a return spring 405, and a limiting block 406. The adjusting blocks 404 are symmetrically installed in the first linkage groove 407 and the second linkage groove 408 opened on the left and right sides of the convex platform 401, and are respectively located at the front and rear ends of the convex platform 401. By moving the adjusting block 404, precise control of the position of the horizontal end of the L-shaped slider can be achieved, thereby restricting the movement range of the first sliding beam 402 and the second sliding beam 403 on the convex platform 401 and ensuring that the device operates within a safe range.

[0037] Adjusting blocks 404 are provided in the first linkage groove 407 and the second linkage groove 408. The two adjusting blocks 404 are connected by a shaft, and a limiting block 406 is fixedly connected to the shaft. The limiting block 406 is respectively slidably fitted in the first limiting groove and the second limiting groove. The bottom end of the adjusting block 404 is connected with a return spring 405, one end of which abuts against the adjusting block 404, and the other end of the return spring 405 abuts against the bottom end of the linkage groove. The return spring 405 is connected to the bottom end of the adjusting block 404 and is used to automatically reset the adjusting block 404 to the initial position after squeezing the limiting block 406 when sliding in the first linkage groove 407 and the second linkage groove 408, and drive the limiting block 406 to reset. At the same time, it drives the limiting block 406 to limit and fix the first sliding beam 402 and the second sliding beam 403. The other end of the return spring 405 abuts against the bottom end of the linkage groove. The adjusting blocks 404 are connected by a shaft, and a limiting block 406 is fixedly connected to the shaft. The limiting block 406 is slidably fitted in the limiting groove and is used in cooperation with the sliders at the bottom ends of the first sliding beam 402 and the second sliding beam 403.

[0038] One end of the limiting block 406 is arc-shaped and the other end is vertically arranged. When performing limiting, the vertical end of the limiting block 406 abuts against the slider to limit and fix the first sliding beam 402 and the second sliding beam 403. When the first sliding beam 402 and the second sliding beam 403 are reset, they slide in the chute, and the arc-shaped end abuts against the L-shaped slider. The arc-shaped end can provide a relatively smooth transition during sliding, reducing additional wear or unnecessary friction that may occur at the contact point, and at the same time ensuring the smoothness and durability of the limiting operation.

[0039] The distance between the limiting block 406 in the second limiting groove on the vertical ends on the left and right sides of the convex platform 401 and the horizontal ends on the left and right sides of the convex platform 401 is equal to the height of the first sliding beam 402 and the second sliding beam 403, which is used to fit the first sliding beam 402 and the second sliding beam 403 into the convex platform 401.

[0040] The limiting device in the first limiting groove limits the lateral end stop ends of the first sliding beam 402 and the second sliding beam 403, and the limiting block 406 of the limiting device in the second limiting groove abuts against the top ends of the first sliding beam 402 and the second sliding beam 403 after sliding, thereby limiting and fixing the top ends of the first sliding beam 402 and the second sliding beam 403 to prevent sliding out.

[0041] Example 3: Please refer to Figure 3 , based on Example 1, it also has the following structure:

[0042] The shock absorbing device 3 is fixedly connected between the telescopic rod 2 and the adjusting beam 4, and includes a top plate 301, a shock absorbing rod 302, a shock absorbing spring 303, a bottom plate 304, and a connecting rod 305. The top plate 301 is fixedly connected to the bottom end of the extended portion of the telescopic rod 2, and the bottom plate 304 is fixedly connected to the top end of the adjusting beam 4. The shock absorbing rod 302 is hinged on the right side of the bottom end of the top plate 301, and a pair of connecting rods 305 are hinged on the left end. The connecting rods 305 are respectively located at the front and rear side ends of the top plate 301, and the connecting rods 305 are connected by a rod. The shock absorbing rod 302 and the connecting rod 305 are arranged in an X shape. The shock absorbing rod 302 is hinged on the right side of the bottom end of the top plate 301 to form an X-shaped connection with the connecting rod 305, and The hinge of the bottom plate 304 plays a supporting and stabilizing role. At the same time, the shock-absorbing spring 303 connected thereto provides a shock-absorbing and buffering function. The X-shaped setting and the use of the shock-absorbing spring 303 enable the shock-absorbing rod 302 to maintain balance and stability when subjected to force, effectively reducing vibration and impact, and enhancing the stability and durability of the equipment. The other end of the shock-absorbing rod 302 and the connecting rod 305 are respectively hinged to the bottom plate 304. The outer side of the shock-absorbing rod 302 is sleeved with a shock-absorbing spring 303. The shock-absorbing spring 303 absorbs and alleviates the vibration and impact caused by the operation of the equipment, reducing secondary injuries to personnel. One end of the shock-absorbing spring 303 contacts the top plate 301, and the other end contacts the bottom plate 304.

[0043] The two connecting rods 305 are arranged in parallel.

[0044] When the equipment is running, the vibration and impact caused by external forces or the vibration of the equipment itself will be transmitted to the shock absorbing device 3 through the telescopic rod 2 and the adjusting beam 4. The shock absorbing rod 302 and the shock absorbing spring 303 in the shock absorbing device 3 work together, and the X-shaped connection structure of the shock absorbing rod 302 and the support of the connecting rod 305 move up and down, so that the device can maintain stability and balance. When the vibration force acts on the shock absorbing device 3, the shock absorbing spring 303 will compress and release its elastic energy, and at the same time, the shock absorbing rod 302 and the connecting rod 305 rotate and move up and down, thereby effectively absorbing and alleviating the vibration and impact, reducing its transmission to the rest of the equipment, thereby improving the overall stability and operational safety of the equipment.

[0045] Example 4: Please refer to Figure 2, on the basis of Embodiment 1, the following structure is further provided:

[0046] It further includes a windshield curtain 8, which is an elastic mesh fabric and is arranged at the moving end of the hanging chair. The windshield curtain 8 is fixedly connected to a windshield rod 7 erected vertically on the fixed side beam 5. The windshield curtain 8 is arranged as an elastic mesh fabric at the moving end of the hanging chair, which can effectively block the direct impact of wind and airflow on the rider. At the same time, the elastic design allows for adjustment when the adjusting cross beam 4 increases in width to meet the usage requirements.

[0047] The above are only the embodiments of the present invention, and common knowledge such as specific structures and characteristics known in the art are not described in detail herein. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An underground emergency hanging chair, installed on a monorail hanging track, characterized in that: The invention comprises two fixed rods (1), a telescopic rod (2), a shock absorbing device (3), an adjusting cross beam (4) and a fixed side beam (5). The fixed rod (1) is arranged in a T-shape, the top end of the vertical end of the T-shape is connected to the pulley block of the monorail hanging track, the two ends of the lateral end of the fixed rod (1) are respectively plugged with telescopic rods (2) and slidably matched with the fixed rod (1), the other end of the telescopic rod (2) is provided with a vertical downward extension part, the extension part is respectively fixedly connected to the top four corners of the adjustable cross beam (4), and the adjustable cross beams (4) are fixedly connected with fixed side beams (5). The adjusting cross beam (4) comprises a boss (401), a first slide beam (402), a second slide beam (403), and a limiting device. The boss (401) has a convex slide groove on its upper surface. Two first limiting grooves are symmetrically provided on the top lateral end of the convex slide groove. The top ends of the vertical end surfaces on the left and right sides are symmetrically provided with second limiting grooves respectively. The limiting devices are respectively provided in the first limiting groove and the second limiting groove. The first slide beam (402) and the second slide beam (403) are both provided with L-shaped sliders. The L-shaped sliders are slidably matched with the convex slide grooves. The vertical ends of the L-shaped sliders are respectively located at the first and second limiting grooves. The first slide beam (402) and the second slide beam (403) are on the corresponding end surfaces and do not exceed the top ends of the first slide beam (402) and the second slide beam (403). The transverse ends are connected to the bottom ends of the first slide beam (402) and the second slide beam (403). The transverse end length of the L-shaped slide block is the same as the length of the transverse ends on both sides of the convex slide groove. The transverse end cutoff end of the L-shaped slide block is used in conjunction with the limiting device in the first limiting groove. The first slide beam (402) and the second slide beam (403) on the left and right sides are respectively connected to fixed side beams (5). An elastic seat surface (6) is provided between the two fixed side beams (5). The limiting device comprises an adjusting block (404), a return spring (405), and a limit block (406). The adjusting block (404) is symmetrically mounted in a first linkage groove (407) and a second linkage groove (408) provided on the left and right sides of the boss (401), and is respectively located at the front and rear side ends of the boss (401). The adjusting blocks (404) are arranged in the first linkage groove (407) and the second linkage groove (408). The two adjusting blocks (404) are connected via a shaft, and the limit block (406) is fixedly connected to the shaft. The limit block (406) is respectively slidably fitted in the first limit groove and the second limit groove. The bottom end of the adjusting block (404) is connected to a return spring (405), one end of which contacts the adjusting block (404), and the other end of the return spring (405) contacts the bottom end of the linkage groove.

2. The underground emergency hanging chair according to claim 1, characterized in that: One end of the limit block (406) is arranged in an arc shape, and the other end is arranged vertically.

3. The underground emergency hanging chair according to claim 1, characterized in that: The shock absorbing device (3) is fixedly connected between the telescopic rod (2) and the adjusting cross beam (4), and comprises a top plate (301), a shock absorbing rod (302), a shock absorbing spring (303), a bottom plate (304), and a connecting rod (305). The top plate (301) is fixedly connected to the bottom end of the extended portion of the telescopic rod (2), the bottom plate (304) is fixedly connected to the top end of the adjusting cross beam (4), the right side of the bottom end of the top plate (301) is hinged with the shock absorbing rod (302), and the left side is hinged with a pair of connecting rods (305). 05, connecting rods (305) are respectively located at the front and rear side ends of the top plate (301), the connecting rods (305) are connected by a rod, the shock absorbing rod (302) and the connecting rod (305) are arranged in an X shape, the other ends of the shock absorbing rod (302) and the connecting rod (305) are respectively hinged to the bottom plate (304), the outer side of the shock absorbing rod (302) is sleeved with a shock absorbing spring (303), one end of the shock absorbing spring (303) is in contact with the top plate (301), and the other end is in contact with the bottom plate (304).

4. The underground emergency hanging chair according to claim 1, characterized in that: It also includes a windshield curtain (8), which is an elastic mesh and is arranged at the moving end of the hanging chair. The windshield curtain (8) is fixedly connected to a windshield rod (7) vertically arranged on the fixed side beam (5).

5. The underground emergency hanging chair according to claim 1, characterized in that: It also includes limit plates, which are respectively arranged at the terminal ends of the convex sliding grooves of the bosses (401) and are used in conjunction with the lateral ends of the L-shaped sliding blocks.

6. The underground emergency hanging chair according to claim 1, characterized in that: The distance between the limiting blocks (406) in the second limiting grooves on the left and right vertical ends of the boss (401) and the left and right lateral ends of the boss (401) is equal to the height of the first sliding beam (402) and the second sliding beam (403), and is used to embed the first sliding beam (402) and the second sliding beam (403) in the boss (401).

7. The underground emergency hanging chair according to claim 1, characterized in that: The elastic chair surface (6) is made of mesh cloth.

8. The underground emergency hanging chair according to claim 3, characterized in that: The two connecting rods (305) are arranged in parallel.

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