Building corridor barrier-free handrail adjustable device

Abstract

The invention relates to the technical field of building handrails, in particular to a building corridor barrier-free handrail adjustable device which comprises a mounting frame body, a handrail adjusting assembly, a stool rotating assembly and a limiting connecting assembly, the handrail adjusting assembly is mounted on the mounting frame body, and the stool rotating assembly is mounted at the bottom end of the mounting frame body; a limiting connecting assembly is mounted on the outer side of the mounting frame main body; the armrest adjusting assembly comprises a lifting groove, a guide opening, a guide rod, a first spring, a lifting block, a guide hole, a first armrest and a second armrest. According to the invention, the armrest adjusting assembly is adopted, so that the armrest structure can be automatically adjusted to adapt to people with different heights, a user can comfortably use the armrest, and the use effect of the equipment is improved; the stool rotating assembly is adopted, a rotating seat can be arranged, when a user needs to use the chair, the user can sit for rest, the rest effect of the user is ensured, and the rest effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building handrails, in particular to an adjustable device for barrier-free handrails in building corridors. Background Art

[0002] Building is a general term for buildings and structures. It is an artificial environment created by people to meet the needs of social life, using the material and technical means they have mastered and applying certain scientific laws and aesthetic principles. Building corridors are also one of them, and building corridors are equipped with barrier-free handrails to allow residents to support themselves. However, existing barrier-free handrails are generally fixed and cannot be adjusted. When encountering people of different heights, users cannot use them comfortably, which reduces the effectiveness of the equipment. In addition, it is generally impossible to set up rotating seats. When users need to rest, they can only rest on the handrails, resulting in poor rest effects and reduced rest effects. In addition, when installing the equipment, it is generally limited by a bolt structure, which makes the installation process more troublesome, increases the installation burden, and reduces the installation effect of the equipment. Summary of the Invention

[0003] The problem solved by the present invention is to provide an adjustable device for barrier-free handrails in building corridors, which can automatically adjust the handrail structure to adapt to people of different heights, so that users can use it comfortably, improving the use effect of the equipment. In addition, a rotating seat can be provided to allow users to sit and rest when they need to use it, ensuring the user's rest effect and improving the rest effect. In addition, when installing the equipment, it can be limited by a snap-fit ​​structure, thereby simplifying the installation process, reducing the installation burden, and improving the installation effect of the equipment.

[0004] To achieve the above-mentioned object, the present invention adopts the following technical solution: an adjustable barrier-free handrail device for a building corridor, comprising a mounting frame body, a handrail adjustment assembly, a bench rotation assembly, and a limit connection assembly, wherein the handrail adjustment assembly is mounted on the mounting frame body, the bench rotation assembly is mounted on the bottom end of the mounting frame body, and the limit connection assembly is mounted on the outer side of the mounting frame body;

[0005] The armrest adjustment assembly includes a lifting slot, a guide port, a guide rod, a first spring, a lifting block, a guide hole, a first armrest, a second armrest, a connecting belt, a first connecting plate, a threaded hole, a first motor and a screw rod. A lifting slot is symmetrically provided on one side of the mounting frame body, a lifting block is slidably connected in the lifting slot, a guide rod is fixedly connected in the lifting slot, a guide hole is provided on the lifting block at a position corresponding to the guide rod, a first spring is fixedly connected to the outer wall of the bottom end of the lifting block, and the bottom end of the first spring is fixedly connected to the inner wall of the lifting slot, a first armrest is fixedly connected to the outer wall of one side of the lifting block, and a second armrest is symmetrically fixed to the outer wall of the bottom end of the first armrest.

[0006] Preferably, a connecting belt is fixed to the outer wall of the top end of the lifting block, a guide opening is provided on one side of the lifting slot corresponding to the position of the connecting belt, a first connecting plate is fixed to the outer wall between the connecting belts, a first motor is embedded and installed at the bottom end of the installation frame body, a screw rod is fixed to the top end of the output shaft of the first motor, and the top end of the screw rod is rotatably connected to the inner wall of the installation frame body, and a threaded hole is provided on the first connecting plate corresponding to the position of the screw rod.

[0007] The cam is connected to the second end of the driving member, and the cam is connected to the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and the control wheel assembly and

[0008] Preferably, an elliptical wheel is fittedly connected to the outer wall between the second connecting plates, a support frame is fixedly connected to the bottom outer wall of the mounting frame body, a second motor is embedded and installed on the support frame, and the top end of the output shaft of the second motor is fixedly connected to the outer wall of the elliptical wheel, a first vertical plate is fixedly connected to the top outer wall of the second connecting plate, and a second spring is fixedly connected to the outer wall between the first vertical plates.

[0009] Preferably, the limit connection assembly includes a guide frame, a movable plate, an electromagnetic adsorption plate, a fourth spring, a second vertical plate, a limit rod and a plastic extrusion plate. The guide frame is fixedly connected to the outer wall of the bottom end of the installation frame body, and the movable plate is slidably connected in the guide frame. The electromagnetic adsorption plate is installed on the outer wall of one side of the movable plate, and a plastic extrusion plate is fixedly connected to the position of the electromagnetic adsorption plate on the outer wall of one side of the slider. The fourth spring is fixedly connected to the outer wall between the electromagnetic adsorption plates, the second vertical plate is fixedly connected to the outer wall of the other side of the movable plate, and the limit rod is fixedly connected to the outer wall of one side of the second vertical plate.

[0010] Preferably, an operation panel is installed on the top inner wall of the installation frame body, buttons are distributed and installed on one side of the operation panel, and a human body sensor is installed on the bottom outer wall of the operation panel.

[0011] Preferably, rotating rods are fixedly connected to the inner walls on both sides of the installation frame body, and guide wheels are fixedly connected to the rotating rods at positions corresponding to the connecting belts.

[0012] Preferably, the second armrests are L-shaped and symmetrical to each other.

[0013] Preferably, the third spring is a torsion spring, and the third spring is located on the inner wall of the rotating sleeve.

[0014] Preferably, there are eight limiting rods, and the limiting rods are distributed in a rectangular shape.

[0015] The beneficial effects of the present invention are: the armrest adjustment component is adopted to automatically adjust the armrest structure to adapt to people of different heights, so that users can use it comfortably and improve the use effect of the equipment;

[0016] The use of a bench rotating assembly can set a rotating seat, so that the user can sit and rest when needed, ensuring the user's rest effect and improving the rest effect;

[0017] The use of limit connection components allows for limited installation through a snap-fit ​​structure during equipment installation, thereby simplifying the installation process, reducing the installation burden, and improving the equipment installation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall three-dimensional structural diagram of the present invention;

[0019] Figure 2 It is a bottom-up three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a front view cutaway structural diagram of the present invention;

[0021] Figure 4 For the present invention Figure 3 A magnified view of the structure of area A in the middle;

[0022] Figure 5 This is a front view cutaway structural diagram of the seat rotating assembly of the present invention;

[0023] Figure 6 It is a side cutaway structural diagram of the present invention;

[0024] Figure 7 This is a three-dimensional diagram of the internal structure of the armrest adjustment assembly of the present invention;

[0025] Figure 8 This is a partial three-dimensional structural diagram of the seat rotating assembly of the present invention;

[0026] Figure 9 This is a bottom-view three-dimensional structural diagram of the seat rotating assembly of the present invention;

[0027] Figure 10 It is a three-dimensional structural diagram of the limiting connection component of the present invention.

[0028] Legend:

[0029] 1. Mounting frame; 2. Armrest adjustment assembly; 3. Seat rotation assembly; 4. Position limit connection assembly; 5. Operation panel; 6. Button; 7. Human body sensor; 8. Rotation rod; 9. Guide wheel; 201. Lifting slot; 202. Guide opening; 203. Guide rod; 204. First spring; 205. Lifting block; 206. Guide hole; 207. First armrest; 208. Second armrest; 209. Connecting belt; 2010. First connecting plate; 2011. Threaded hole; 2012. First motor; 2013. Screw; 301. Guide rail; 302, slider; 303, second connecting plate; 304, rack; 305, first vertical plate; 306, second spring; 307, support frame; 308, second motor; 309, elliptical wheel; 3010, plug rod; 3011, rotating sleeve; 3012, gear ring; 3013, fixed plate; 3014, third spring; 3015, stool; 401, guide frame; 402, movable plate; 403, electromagnetic adsorption plate; 404, fourth spring; 405, second vertical plate; 406, limit rod; 407, plastic extrusion plate. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] Example 1

[0032] See also Figures 1 to 7 , the barrier-free handrail adjustable device for building corridors includes an installation frame body 1, an armrest adjustment component 2, a bench rotation component 3 and a limit connection component 4. The armrest adjustment component 2 is installed on the installation frame body 1, the bench rotation component 3 is installed at the bottom end of the installation frame body 1, and the limit connection component 4 is installed on the outside of the installation frame body 1; an operation panel 5 is installed on the top inner wall of the installation frame body 1, and buttons 6 are distributed and installed on one side of the operation panel 5. A human body sensor 7 is installed on the outer wall of the bottom end of the operation panel 5. The operation panel 5 is preset by the button 6, and then the human body is sensed by the human body sensor 7, so that the handrail structure can support the user; rotating rods 8 are fixedly connected to the inner walls of both sides of the installation frame body 1, and the rotating rod 8 is fixedly connected to the guide wheel 9 at the position of the connecting belt 209, so that the connecting belt 209 on the first connecting plate 2010 rises along the guide wheel 9 on the rotating rod 8, so that the connecting belt 209 can be moved along the guide port 202 conveniently;

[0033] The armrest adjustment assembly 2 includes a lifting slot 201, a guide port 202, a guide rod 203, a first spring 204, a lifting block 205, a guide hole 206, a first armrest 207, a second armrest 208, a connecting belt 209, a first connecting plate 2010, a threaded hole 2011, a first motor 2012 and a screw rod 2013. A lifting slot 201 is symmetrically provided on one side of the mounting frame body 1. The lifting block 205 is slidably connected to the lifting slot 201, and the guide rod 203 is fixedly connected to the lifting slot 201. A guide hole 206 is provided on the lifting block 205 at a position corresponding to the guide rod 203. A first spring 204 is fixedly connected to the outer wall of the bottom end of the lifting block 205, and the bottom end of the first spring 204 is fixedly connected to the inner wall of the lifting groove 201. A first handrail 207 is fixedly connected to the outer wall of one side of the lifting block 205, and a second handrail 208 is symmetrically fixed to the outer wall of the bottom end of the first handrail 207; a connecting belt 209 is fixedly connected to the outer wall of the top end of the lifting block 205, and a position of the connecting belt 209 on one side of the lifting groove 201 is fixedly connected to the outer wall of the lifting block 205. A guide port 202 is provided, and a first connecting plate 2010 is fixedly connected to the outer wall between the connecting belts 209. A first motor 2012 is embedded and installed at the bottom end of the mounting frame body 1. A screw rod 2013 is fixedly connected to the top end of the output shaft of the first motor 2012, and the top end of the screw rod 2013 is rotatably connected to the inner wall of the mounting frame body 1. A threaded hole 2011 is provided on the first connecting plate 2010 corresponding to the position of the screw rod 2013. The first motor 2012 is started to reverse the screw rod 2013, and then the screw rod 2013 is rotated in the threaded hole 2011. 11, the connecting belt 209 on the first connecting plate 2010 is lowered along the guide wheel 9 on the rotating rod 8, and then the guide hole 206 on the lifting block 205 is reset along the guide rod 203 in the lifting slot 201 under the action of the first spring 204; the second armrest 208 is L-shaped, and the second armrests 208 are symmetrical to each other. The second armrest 208 can be used to support a person who falls at a low position, and the second armrest 208 can be used to install the bench rotating assembly 3.

[0034] Working principle: When a passerby needs to hold the first handrail 207 and the second handrail 208, the human body sensor 7 on the operation panel 5 is first used to sense the passerby and confirm the height of the user. Then, the first motor 2012 is started to rotate the screw rod 2013. Under the action of the threaded hole 2011, the connecting belt 209 on the first connecting plate 2010 is lifted along the guide wheel 9 on the rotating rod 8, so that the connecting belt 209 moves along the guide opening 202, and the guide hole 206 on the lifting block 205 is lifted along the guide rod 203 in the lifting slot 201, so that the first handrail 207 and the second handrail 208 are adjusted to a suitable height. So that the first handrail 207 and the second handrail 208 can support and handle passers-by. When the first handrail 207 and the second handrail 208 need to be reset, the first motor 2012 is started to reverse the screw rod 2013, and then under the action of the threaded hole 2011, the connecting belt 209 on the first connecting plate 2010 is lowered along the guide wheel 9 on the rotating rod 8, and then under the action of the first spring 204, the guide hole 206 on the lifting block 205 is reset along the guide rod 203 in the lifting groove 201. The handrail structure can be automatically adjusted to adapt to people of different heights, so that users can use it comfortably, thereby improving the use effect of the equipment.

[0035] Example 2

[0036] See also Figures 5 to 9The seat rotating assembly 3 includes a guide rail 301, a slider 302, a second connecting plate 303, a rack 304, a first vertical plate 305, a second spring 306, a support frame 307, a second motor 308, an elliptical wheel 309, a plug rod 3010, a rotating sleeve 3011, a gear ring 3012, a fixed plate 3013, a third spring 3014 and a seat 3015. The plug rod 3010 is fixed to the outer wall of one end of the second armrest 208, and the rotating sleeve 3011 is sleeved on the outer side of the plug rod 3010. The seat 3015 is fixed to the outer wall of one side of the rotating sleeve 3011, and the middle inner wall of the rotating sleeve 3011 A fixed plate 3013 is fixed on the top, and a third spring 3014 is fixed on the outer walls of both sides of the fixed plate 3013, and the other end of the third spring 3014 is fixed on the outer wall of the insertion rod 3010, and a gear ring 3012 is symmetrically fixed on the outer side of the rotating sleeve 3011, and a rack 304 is meshed and installed on the outer side of the gear ring 3012, and a second connecting plate 303 is fixed on the outer wall of one side of the rack 304, and a slider 302 is fixed on the outer wall of one side of the second connecting plate 303, and a guide rail 301 is fixed on the outer wall of one side of the mounting frame body 1, and one side of the slider 302 is slidably connected to the outer wall of the guide rail 301; the second connecting plate 30 3 is fitted and connected with an elliptical wheel 309, a support frame 307 is fixedly connected to the outer wall of the bottom end of the mounting frame body 1, a second motor 308 is inlaid and installed on the support frame 307, and the top end of the output shaft of the second motor 308 is fixedly connected to the outer wall of the elliptical wheel 309, a first vertical plate 305 is fixedly connected to the outer wall of the top end of the second connecting plate 303, and a second spring 306 is fixedly connected to the outer wall between the first vertical plates 305. When the user finishes resting, the second motor 308 is started to reset the elliptical wheel 309, and then the sliding plate on the second connecting plate 303 is moved under the action of the second spring 306 on the first vertical plate 305. The block 302 is reset along the guide rail 301, thereby separating the rack 304 from the gear ring 3012. At this time, under the action of the third spring 3014 on the fixed plate 3013, the rotating sleeve 3011 is reset and rotated along the insertion rod 3010, thereby folding the seat 3015. The third spring 3014 is a torsion spring, and the third spring 3014 is located on the inner wall of the rotating sleeve 3011. Under the action of the third spring 3014 on the fixed plate 3013, the rotating sleeve 3011 is reset and rotated along the insertion rod 3010, thereby folding the seat 3015.

[0037] When the user needs to sit down and rest, the second motor 308 on the support frame 307 is started to make the elliptical wheel 309 rotate ninety degrees, and the second connecting plate 303 is squeezed by the raised part of the elliptical wheel 309, so that the slider 302 on the second connecting plate 303 moves along the guide rail 301, so that the rack 304 is engaged with the gear ring 3012, and then the first motor 2012 is started to rotate the screw rod 2013, and then under the action of the threaded hole 2011, the connecting belt 209 on the first connecting plate 2010 is lowered along the guide wheel 9 on the rotating rod 8, so that the first armrest 207 and the second armrest 208 are lowered, and under the action of the rack 304 and the gear ring 3012, the rotating sleeve 3011 is rotated ninety degrees along the inserted rod 3010, so that the rotating sleeve The seat 3015 on the cylinder 3011 changes from a vertical state to a flat state, and then the user sits on the seat 3015 to rest. When the user has finished resting, the second motor 308 is started to reset the elliptical wheel 309, and then under the action of the second spring 306 on the first vertical plate 305, the slider 302 on the second connecting plate 303 is reset along the guide rail 301, so that the rack 304 is separated from the gear ring 3012. At this time, under the action of the third spring 3014 on the fixed plate 3013, the rotating sleeve 3011 is reset and rotated along the insertion rod 3010, so that the seat 3015 is folded. A rotating seat can be set, so that the user can sit and rest when needed, ensuring the user's rest effect and improving the rest effect.

[0038] Example 3

[0039] See also Figure 6 and Figure 10 The limiting connection assembly 4 includes a guide frame 401, a movable plate 402, an electromagnetic adsorption plate 403, a fourth spring 404, a second vertical plate 405, a limiting rod 406 and a plastic extrusion plate 407. The guide frame 401 is fixedly connected to the outer wall of the bottom end of the installation frame body 1. The movable plate 402 is slidably connected in the guide frame 401. The electromagnetic adsorption plate 403 is installed on one side of the outer wall of the movable plate 402. The outer wall of one side of the slider 302 corresponds to the electromagnetic adsorption plate 403. A plastic extrusion plate 407 is fixedly connected to the frame, a fourth spring 404 is fixedly connected to the outer wall between the electromagnetic adsorption plates 403, a second vertical plate 405 is fixedly connected to the outer wall on the other side of the movable plate 402, and a limiting rod 406 is distributed and fixedly connected to the outer wall on one side of the second vertical plate 405; there are eight limiting rods 406, and the limiting rods 406 are distributed in a rectangular shape. By adding multiple limiting rods 406, the limiting rods 406 can be inserted into the interior of the connecting frame to increase the fixing effect of the mounting frame body 1.

[0040] First, a connecting frame is installed on the wall of the building corridor, and then the installation frame body 1 is placed inside the connecting frame. At this time, the second motor 308 on the support frame 307 is started to rotate the elliptical wheel 309, and the second connecting plate 303 is squeezed through the raised part of the elliptical wheel 309, so that the slider 302 on the plastic squeezing plate 407 moves away from the guide rail 301. Then, the electromagnetic adsorption plate 403 is squeezed by the plastic squeezing plate 407, so that the moving plate 402 on the electromagnetic adsorption plate 403 moves along the guide frame 401, so that the limiting rod 406 on the second vertical plate 405 is inserted into the interior of the connecting frame, so that the installation frame The main body 1 is fixed in position, and then the electromagnetic adsorption plate 403 is started to magnetically adsorb the guide frame 401, so that the installation frame main body 1 can be continuously fixed. When the installation frame main body 1 needs to be disassembled, the electromagnetic adsorption plate 403 is closed, and then under the action of the fourth spring 404, the movable plate 402 on the electromagnetic adsorption plate 403 is moved in the opposite direction along the guide frame 401, and the limiting rod 406 is separated from the connecting frame, so that the installation frame main body 1 is disassembled. When the equipment is installed, the locking structure can be used for limited installation, thereby simplifying the installation process, reducing the installation burden, and improving the installation effect of the equipment.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. The adjustable barrier-free handrail device for building corridors is characterized by: The utility model comprises an installation frame body (1), an armrest adjustment component (2), a seat rotation component (3) and a position limiting connection component (4); the armrest adjustment component (2) is installed on the installation frame body (1), the seat rotation component (3) is installed at the bottom end of the installation frame body (1), and the position limiting connection component (4) is installed on the outer side of the installation frame body (1); The armrest adjustment assembly (2) comprises a lifting slot (201), a guide opening (202), a guide rod (203), a first spring (204), a lifting block (205), a guide hole (206), a first armrest (207), a second armrest (208), a connecting belt (209), a first connecting plate (2010), a threaded hole (2011), a first motor (2012) and a screw rod (2013); a lifting slot (201) is symmetrically provided on one side of the mounting frame body (1); a lifting block (201) is slidably connected in the lifting slot (201). 205), a guide rod (203) is fixedly connected in the lifting groove (201), a guide hole (206) is opened on the lifting block (205) at a position corresponding to the guide rod (203), a first spring (204) is fixedly connected to the outer wall of the bottom end of the lifting block (205), and the bottom end of the first spring (204) is fixedly connected to the inner wall of the lifting groove (201), a first handrail (207) is fixedly connected to the outer wall of one side of the lifting block (205), and a second handrail (208) is symmetrically fixedly connected to the outer wall of the bottom end of the first handrail (207).

2. The adjustable barrier-free handrail device for building corridors according to claim 1, characterized in that: A connecting belt (209) is fixedly connected to the outer wall of the top end of the lifting block (205); a guide opening (202) is provided on one side of the lifting slot (201) at a position corresponding to the connecting belt (209); a first connecting plate (2010) is fixedly connected to the outer wall between the connecting belts (209); a first motor (2012) is embedded and installed at the bottom end of the installation frame body (1); a screw rod (2013) is fixedly connected to the top end of the output shaft of the first motor (2012); and the top end of the screw rod (2013) is rotatably connected to the inner wall of the installation frame body (1); and a threaded hole (2011) is provided on the first connecting plate (2010) at a position corresponding to the screw rod (2013).

3. The adjustable barrier-free handrail device for building corridors according to claim 1, characterized in that: The bench rotating assembly (3) comprises a guide rail (301), a slider (302), a second connecting plate (303), a rack (304), a first vertical plate (305), a second spring (306), a support frame (307), a second motor (308), an elliptical wheel (309), an insertion rod (3010), a rotating sleeve (3011), a gear ring (3012), a fixed plate (3013), a third spring (3014) and a bench (3015), wherein an insertion rod (3010) is fixedly connected to an outer wall of one end of the second armrest (208), a rotating sleeve (3011) is sleeved on an outer side of the insertion rod (3010), a bench (3015) is fixedly connected to an outer wall of one side of the rotating sleeve (3011), and the rotating sleeve (30 11), a fixed disk (3013) is fixedly connected to the middle inner wall of the fixed disk (3013), a third spring (3014) is fixedly connected to the outer walls of both sides of the fixed disk (3013), and the other end of the third spring (3014) is fixedly connected to the outer wall of the insertion rod (3010), a gear ring (3012) is symmetrically fixedly connected to the outer side of the rotating sleeve (3011), a rack (304) is meshedly installed on the outer side of the gear ring (3012), a second connecting plate (303) is fixedly connected to the outer wall of one side of the rack (304), a slider (302) is fixedly connected to the outer wall of one side of the second connecting plate (303), a guide rail (301) is fixedly connected to the outer wall of one side of the installation frame body (1), and one side of the slider (302) is slidably connected to the outer wall of the guide rail (301).

4. The adjustable barrier-free handrail device for building corridors according to claim 3, characterized in that: An elliptical wheel (309) is fitted and connected to the outer wall between the second connecting plates (303); a support frame (307) is fixedly connected to the outer wall of the bottom end of the installation frame body (1); a second motor (308) is embedded and installed on the support frame (307); and the top end of the output shaft of the second motor (308) is fixedly connected to the outer wall of the elliptical wheel (309); a first vertical plate (305) is fixedly connected to the outer wall of the top end of the second connecting plate (303); and a second spring (306) is fixedly connected to the outer wall between the first vertical plates (305).

5. The adjustable barrier-free handrail device for building corridors according to claim 3, characterized in that: The position-limiting connection assembly (4) comprises a guide frame (401), a movable plate (402), an electromagnetic adsorption plate (403), a fourth spring (404), a second vertical plate (405), a position-limiting rod (406) and a plastic extrusion plate (407); the guide frame (401) is fixedly connected to the outer wall of the bottom end of the installation frame body (1); the movable plate (402) is slidably connected inside the guide frame (401); the electromagnetic adsorption plate (403) is installed on one side outer wall of the movable plate (402); a plastic extrusion plate (407) is fixedly connected to the position of the electromagnetic adsorption plate (403) on one side outer wall of the slider (302); the fourth spring (404) is fixedly connected to the outer wall between the electromagnetic adsorption plates (403); the second vertical plate (405) is fixedly connected to the outer wall of the other side of the movable plate (402); and the position-limiting rod (406) is fixedly connected to the outer wall of one side of the second vertical plate (405).

6. The adjustable barrier-free handrail device for building corridors according to claim 1, characterized in that: An operation panel (5) is installed on the top inner wall of the installation frame body (1), buttons (6) are distributed and installed on one side of the operation panel (5), and a human body sensor (7) is installed on the bottom outer wall of the operation panel (5).

7. The adjustable barrier-free handrail device for building corridors according to claim 2, characterized in that: Rotating rods (8) are fixedly connected to the inner walls on both sides of the installation frame body (1), and guide wheels (9) are fixedly connected to the rotating rods (8) at positions corresponding to the connecting belts (209).

8. The adjustable barrier-free handrail device for building corridors according to claim 2, characterized in that: The second armrests (208) are L-shaped, and the second armrests (208) are symmetrical to each other.

9. The adjustable barrier-free handrail device for building corridors according to claim 3, characterized in that: The third spring (3014) is a torsion spring, and the third spring (3014) is located on the inner wall of the rotating sleeve (3011).

10. The adjustable barrier-free handrail device for building corridors according to claim 5, characterized in that: The number of the limiting rods (406) is eight, and the limiting rods (406) are distributed in a rectangular shape.

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