Auxiliary device for going upstairs and downstairs

Abstract

The invention belongs to the technical field of corridor facilities, and discloses an auxiliary device for going upstairs and downstairs, which comprises an upper plate, a climbing frame and a device connecting block, the upper plate is connected with the climbing frame through the device connecting block, a fixing disc is mounted in the middle of the upper surface of the upper plate, and a working plate is transversely mounted on the upper surface of the upper plate. The working plate penetrates through the interior of the fixed disc and is fixedly connected with the two ends of the working plate, one end of the working plate is fixedly connected with a grip, and an object hook is installed on the lower surface of the side, close to the grip, of the working plate; the two sides of a stair handrail can be clamped through concave wheels on the climbing device, then the concave wheels are driven to rotate through a transmission motor, the automatic climbing function is achieved, a user can pull the climbing device with the two hands through grips on an upper plate, and the climbing strength is better saved; the article hooks are mounted on the working plate and can be used for hanging some low-weight articles, so that the climbing device can automatically climb upstairs, and the hands of a user are liberated.

Description

Technical Field

[0001] The invention belongs to the technical field of corridor facilities, and in particular relates to a stair going up and down assisting device. Background Art

[0002] Most older buildings lack elevators, and stairways are equipped with only cylindrical handrails. Climbing stairs is a significant challenge for the elderly. Available mechanical devices for assisting elderly individuals with stair climbing are generally expensive, inadequate, and require modifications to existing stairways. Therefore, finding a simple and efficient way for elderly individuals to ascend stairs has become extremely urgent. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides a stair climbing assist device, the specific technical solution of which is as follows: A stair climbing assist device comprises an upper plate, a climbing frame and a device connecting block, wherein the upper plate and the climbing frame are connected via the device connecting block, a fixed plate is installed at the middle position of the upper surface of the upper plate, a working plate is installed transversely on the upper surface of the upper plate, and the working plate passes through the interior of the fixed plate and is fixedly connected to both ends of the working plate, one end of the working plate is fixedly connected to a handle, an object hook is installed on the lower surface of the working plate near the handle, and an adjusting wire wheel device is installed on the upper surface of the fixed plate; The upper surface of the adjusting wheel device is fixedly mounted with a tightening knob, and the upper surface of the upper plate is fixedly mounted with gate wire openings on both sides near the fixed disk, and a traction groove is horizontally opened at four corners of the upper surface of the upper plate, and a traction seat is slidably connected to the traction groove, and an armrest clamping support rod is provided in the traction groove near the bottom of the upper plate, and one end of the traction seat near the gate wire opening is fixedly connected to the armrest clamping support rod, and the other side of the traction groove is fixedly mounted near the bottom of the upper plate, and a telescopic sleeve is rotatably connected to the rotating base, and the other end of the telescopic sleeve is rotatably connected to the lower end of the armrest clamping support rod; The climbing frame is a frame structure with a rectangular groove in the middle. Climbing devices are installed at both ends of the climbing frame. The climbing device is slidably connected to the climbing frame. A ball screw is connected to the outside of the climbing device. The ball screw passes through the climbing frame and is connected to a screw motor fixed on the climbing frame. A concave wheel is vertically installed on the climbing device, and a transmission motor is fixedly installed on the side of the climbing frame close to the screw motor. The transmission motor and the concave wheel are connected through a transmission device.

[0004] As a preferred embodiment, the adjusting wheel device also includes a limit block and a ratchet, the ratchet is fixedly installed on the lower surface of the adjusting wheel device, and a rotating shaft is fixedly connected at the center position of the lower surface of the ratchet, the rotating shaft passes through the fixed disk and extends to the device connecting block, the ratchet is rotatably connected to the fixed disk, and the limit blocks are fixedly installed on both sides of the fixed disk near the ratchet.

[0005] As a preferred embodiment, a pawl of the ratchet is rotatably connected to a limit lever, and a limit device is provided at the connection position between the ratchet and the limit lever. The maximum rotation angle of the ratchet and the limit lever is forty-five degrees. A contraction groove is provided on the side of the limit lever close to the adjusting wheel device, and the shape of the contraction groove is consistent with that of the pawl.

[0006] As a preference, sliding grooves are provided on both sides of the inner wall of the climbing frame, sliding blocks are installed at both ends of the climbing device, and the climbing frame and the climbing device are slidably connected through the sliding grooves and the sliding blocks.

[0007] As a preferred embodiment, the concave wheel is rotatably connected to the climbing device through a climbing rotating shaft, and the transmission device is mainly composed of a driven gear and a transmission gear. The driven gear is fixed to the lower surface of the concave wheel, and the output shaft of the transmission motor is fixedly connected to the transmission gear. The driven gear and the transmission gear are in the same horizontal position, and the driven gear and the transmission gear are meshed and connected.

[0008] As a preference, the device connecting block is a "U"-shaped structure, the two ends of the device connecting block are fixed to the two ends of the upper surface of the climbing frame, and the upper surface of the device connecting block is fixedly connected to the upper plate.

[0009] As another preferred device for assisting people in going up and down stairs, the telescopic sleeve is mainly composed of a sleeve and a sliding rod. The sliding rod is sleeved inside the sleeve and is slidably connected to the sleeve. The other end of the sliding rod is rotatably connected to the rotating base. The other end of the sleeve is rotatably connected to the lower end of the handrail clamping support rod. The length of the traction groove is two-fifths of the length of the upper plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can clamp the two sides of the stair handrail through the concave wheels on the climbing device, and then drive the concave wheels to rotate through the transmission motor, thereby realizing the automatic climbing function, and then the handle on the upper plate can be used for the user to pull with both hands, thereby saving more effort in climbing stairs.

[0011] 2. The present invention has object hooks installed on the working board, which can be used to hang some light objects, so that the objects can be automatically moved upstairs through the climbing device, freeing the user's hands. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the overall assembly structure of the stair going up and down assisting device of the present invention; Figure 2 is a side view of the device of the present invention; Figure 3 It is a top view of the device of the present invention.

[0014] The meaning of the reference numerals in the figure are as follows: 1. Upper plate; 11. Working plate; 111. Handle; 112. Object hook; 12. Fixed plate; 13. Tightening knob; 14. Adjusting wheel device; 141. Limit block; 142. Ratchet; 1421. Limit stop bar; 143. Gate line opening; 144. Traction seat; 145. Traction groove; 146. Handrail clamping support rod; 15. Telescopic sleeve; 2. Climbing frame; 21. Climbing device; 211. Concave wheel; 212. Driven gear; 213. Transmission motor; 214. Transmission gear; 22. Ball screw; 221. Screw motor; 3. Device connecting block. DETAILED DESCRIPTION

[0015] 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 creative efforts are within the scope of protection of the present invention.

[0016] like Figure 1-3 As shown, the stair going up and down auxiliary device of the present invention includes an upper plate 1, a climbing frame 2 and a device connecting block 3. The upper plate 1 and the climbing frame 2 are fixedly connected by bolts through the device connecting block 3. A fixing plate 12 is fixedly installed with bolts at the middle position of the upper surface of the upper plate 1. A working plate 11 is horizontally installed on the upper surface of the upper plate 1, and the working plate 11 passes through the interior of the fixing plate 12 and is fixedly connected to the two ends of the working plate 11 by bolts. One end of the working plate 11 is detachably connected to a handle 111 through a slot and bolts. An object hook 112 is fixedly installed on the lower surface of the working plate 11 close to the handle 111, and an adjusting wheel device 14 is installed on the upper surface of the fixing plate 12.

[0017] A tightening knob 13 is welded and fixedly installed on the upper surface of the adjusting wheel device 14, and a gate line opening 143 is fixedly installed with bolts on both sides of the upper surface of the upper plate 1 near the fixed plate 12, and a traction groove 145 is horizontally opened at the four corners of the upper surface of the upper plate 1. The traction groove 145 is slidably connected with a traction seat 144 through a traction slide and a traction slider. An armrest clamping support rod 146 is provided in the traction groove 145 near the bottom of the upper plate 1, and the armrest clamping support rod 146 does not contact the traction groove 145. One end of the traction seat 144 near the gate line opening 143 is fixedly connected to the armrest clamping support rod 146 by a thread, and the other side of the traction groove 145 is fixedly installed with a rotating base near the bottom of the upper plate 1, and a telescopic sleeve 15 is rotatably connected to the rotating base, and the other end of the telescopic sleeve 15 is rotatably connected to the lower end of the armrest clamping support rod 146.

[0018] The climbing frame 2 is a frame structure with a rectangular groove in the middle. Climbing devices 21 are installed at both ends of the climbing frame 2. The climbing device 21 is slidingly connected to the climbing frame 2. A ball screw 22 is connected to the outside of the climbing device 21. The ball screw 22 passes through the climbing frame 2 and is connected to a screw motor 221 fixed on the climbing frame 2. A concave wheel 211 is vertically installed on the climbing device 21, and a transmission motor 213 is fixedly installed on the side of the climbing frame 2 close to the screw motor 221. The transmission motor 213 and the concave wheel 211 are connected through a transmission device.

[0019] In this embodiment, a battery and two switches are installed on the upper surface of the working plate 11. The battery is electrically connected to the transmission motor 213 and the screw motor 221 through the two switches. When the user needs to use it, the climbing device 21 on the climbing frame 2 is placed on the cylindrical aisle handrail, and the screw motor 221 switch is turned on, so that the screw motor 221 drives the ball screw 22 to work, thereby driving the two climbing devices 21 to move to one side of the cylindrical aisle handrail through the ball screw 22 until the two climbing devices 21 are tightly fitted with the cylindrical aisle handrail. Four steel wires are wound around the adjusting wheel device 14, and the four steel wires pass through the two gate wire openings 143 and are respectively connected to the traction seat 144, blocking When the user turns the tightening knob 13, the adjusting wire wheel device 14 will be driven to retract the four steel wires, thereby pulling the four traction seats 144 to slide on the traction groove 145 until the four traction seats 144 drive the four handrail clamping support rods 146 to move to the side of the cylindrical aisle handrail, and then the adjusting wire wheel device 14 is limited and fixed by the limit block rod 1421, and then the transmission motor 213 switch is turned on, and the concave wheel 211 is driven to rotate by the transmission motor 213, thereby driving the entire device to move on the cylindrical aisle handrail, so that the user can pull the handle 111 on the work plate 11 with both hands to save effort and go up the stairs, or automatically carry items in hand up the stairs through the object hook 112.

[0020] The adjusting wheel device 14 also includes a limit block 141 and a ratchet 142. The ratchet 142 is fixedly installed on the lower surface of the adjusting wheel device 14, and a rotating shaft is fixedly connected to the center position of the lower surface of the ratchet 142. The rotating shaft passes through the fixed disk 12 and extends to the device connecting block 3. The ratchet 142 is rotatably connected to the fixed disk 12. The limit block 141 is fixedly installed on both sides of the fixed disk 12 close to the ratchet 142. A limit lever 1421 is rotatably connected to a pawl of the ratchet 142, and a limit device is provided at the connection position between the ratchet 142 and the limit lever 1421. The maximum rotation angle of the ratchet 142 and the limit lever 1421 is forty-five degrees. A contraction groove is provided on the side of the limit lever 1421 close to the adjusting wheel device 14, and the shape of the contraction groove is consistent with the pawl.

[0021] In this embodiment, the rotation of the adjusting wheel device 14 drives the ratchet 142 to rotate. When the steel rope is wound, the contraction groove of the limit lever 1421 is stuck on the adjacent pawl on the ratchet 142 to prevent the limit lever 1421 from blocking the rotation. When the adjusting wheel device 14 is wound to the desired length, the limit lever 1421 is opened to the maximum angle so that it is at a forty-five degree angle with the ratchet 142. The limit block 141 is clamped by the limit lever 1421, thereby fixing the ratchet 142 on the adjusting wheel device 14.

[0022] Sliding grooves are provided on both sides of the inner wall of the climbing frame 2, and sliding blocks are installed at both ends of the climbing device 21. The climbing frame 2 and the climbing device 21 are slidably connected through the sliding grooves and the sliding blocks.

[0023] In this embodiment, the climbing device 21 needs to move on both sides of the inner wall of the climbing frame 2 under the operation of the ball screw 22. Sliding grooves are provided on both sides of the inner wall of the climbing frame 2, and sliding blocks are installed at both ends of the climbing device 21, so that the climbing device 21 is more stable on the climbing frame 2.

[0024] The concave wheel 211 is rotatably connected to the climbing device 21 through a climbing rotating shaft. The transmission device is mainly composed of a driven gear 212 and a transmission gear 214. The driven gear 212 is fixed to the lower surface of the concave wheel 211, and the output shaft of the transmission motor 213 is fixedly connected to the transmission gear 214. The driven gear 212 and the transmission gear 214 are in the same horizontal position, and the driven gear 212 and the transmission gear 214 are meshed and connected.

[0025] In this embodiment, the transmission motor 213 on the climbing frame 2 drives the transmission gear 214 to rotate, thereby driving the driven gear 212 to rotate, so that the transmission motor 213 can drive the concave wheel 211 to rotate, and the two concave wheels 211 rotate in opposite directions, so that the two concave wheels 211 can drive the entire device to move on the cylindrical aisle handrail.

[0026] The device connecting block 3 is a "U"-shaped structure, with both ends of the device connecting block 3 fixed to both ends of the upper surface of the climbing frame 2, and the upper surface of the device connecting block 3 is fixedly connected to the upper plate 1.

[0027] The telescopic sleeve 15 is mainly composed of a sleeve and a sliding rod. The sliding rod is sleeved inside the sleeve and is slidably connected to the sleeve. The other end of the sliding rod is rotatably connected to the rotating base. The other end of the sleeve is rotatably connected to the lower end of the armrest clamping support rod 146. The length of the traction groove 145 is two-fifths of the length of the upper plate 1.

[0028] In this embodiment, the telescopic sleeve 15 can be used to support the armrest clamping support rod 146. Since the armrest clamping support rod 146 needs to be adjusted and moved according to the size of the armrest in actual work, the sleeve and sliding rod on the telescopic sleeve 15 can be adjusted accordingly.

[0029] The working principle and use process of the present invention: The present invention is equipped with a battery and two switches on the upper surface of the working plate 11. The battery is electrically connected to the transmission motor 213 and the screw motor 221 through the two switches. When the user needs to use it, the climbing device 21 on the climbing frame 2 is placed on the cylindrical aisle handrail, and the screw motor 221 switch is turned on, so that the screw motor 221 drives the ball screw 22 to work, thereby driving the two climbing devices 21 to move to one side of the cylindrical aisle handrail through the ball screw 22 until the climbing device 21 is lifted. When the two climbing devices 21 are tightly fitted with the cylindrical aisle handrail, four steel wires are wound around the adjusting wheel device 14, and the four steel wires pass through the two gate wire openings 143 and are connected to the traction seat 144 respectively. When the user turns the tightening knob 13, the adjusting wheel device 14 will be driven to retract the four steel wires, thereby pulling the four traction seats 144 to slide on the traction groove 145, until the four traction seats 144 drive the four handrail clamping support rods 146 to move to the side of the cylindrical aisle handrail, and the rotation of the adjusting wheel device 14 drives When the ratchet 142 rotates, the contraction groove of the limit stop lever 1421 is stuck on the adjacent pawl on the ratchet 142 when the steel rope is wound, so as to prevent the limit stop lever 1421 from blocking the rotation. When the adjusting wheel device 14 is wound to the desired length, the limit stop lever 1421 is opened to the maximum angle so that it is at a forty-five degree angle with the ratchet 142. The limit stop lever 1421 is used to clamp the limit block 141, thereby fixing the ratchet 142 on the adjusting wheel device 14, and the transmission motor 213 drives the transmission gear 214 to rotate, thereby The driven gear 212 rotates, thereby driving the concave wheel 211 to rotate through the transmission motor 213, and the two concave wheels 211 rotate in opposite directions, so that the two concave wheels 211 can drive the entire device to move on the cylindrical aisle handrail, and can be used to pull the handle 111 on the work plate 11 with both hands to save effort and go upstairs, or automatically carry items in hand upstairs through the object hook 112. At the same time, when the user only needs to carry items through the object hook 112, the handle 111 can be removed.

[0030] When the user only needs to use the handle 111, the operation process is: turn on the switch of the transmission motor 213, so that the transmission motor 213 drives the concave wheel 211 to climb; when the concave wheel 211 climbs to a suitable height, turn off the switch of the transmission motor 213, and the user grabs the handle 111 with both hands to stretch it to go up the stairs, and then repeats the above steps to go up the stairs.

[0031] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0032] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0033] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art based on the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A stair climbing assist device, comprising an upper plate (1), a climbing frame (2) and a device connecting block (3), wherein the upper plate (1) and the climbing frame (2) are connected via the device connecting block (3), and is characterized in that: A fixed disk (12) is installed at a middle position on the upper surface of the upper plate (1), a working plate (11) is installed transversely on the upper surface of the upper plate (1), and the working plate (11) passes through the interior of the fixed disk (12) and is fixedly connected to both ends of the working plate (11), one end of the working plate (11) is fixedly connected to a handle (111), an object hook (112) is installed on the lower surface of the working plate (11) near the handle (111), and an adjusting wheel device (14) is installed on the upper surface of the fixed disk (12); A tightening knob (13) is fixedly mounted on the upper surface of the regulating wheel device (14), gate wire openings (143) are fixedly mounted on both sides of the upper surface of the upper plate (1) near the fixed disk (12), and traction grooves (145) are transversely opened at four corners of the upper surface of the upper plate (1), a traction seat (144) is slidably connected to the traction groove (145), an armrest clamping support rod (146) is provided in the traction groove (145) near the bottom of the upper plate (1), one end of the traction seat (144) near the gate wire opening (143) is fixedly connected to the armrest clamping support rod (146), and a rotating base is fixedly mounted on the other side of the traction groove (145) near the bottom of the upper plate (1), a telescopic sleeve (15) is rotatably connected to the rotating base, and the other end of the telescopic sleeve (15) is rotatably connected to the lower end of the armrest clamping support rod (146); The climbing frame (2) is a frame structure with a rectangular groove in the middle. Climbing devices (21) are installed at both ends of the climbing frame (2). The climbing device (21) is slidably connected to the climbing frame (2). A ball screw (22) is connected to the outside of the climbing device (21). The ball screw (22) passes through the climbing frame (2) and is connected to a screw motor (221) fixed on the climbing frame (2). A concave wheel (211) is vertically installed on the climbing device (21), and a transmission motor (213) is fixedly installed on the side of the climbing frame (2) close to the screw motor (221). The transmission motor (213) and the concave wheel (211) are connected through a transmission device.

2. The stair climbing assist device according to claim 1, characterized in that: The regulating wire wheel device (14) further comprises a limit block (141) and a ratchet (142), wherein the ratchet (142) is fixedly mounted on the lower surface of the regulating wire wheel device (14), and a rotating shaft is fixedly connected at the center position of the lower surface of the ratchet (142), and the rotating shaft passes through the fixed disk (12) and extends to the device connecting block (3), the ratchet (142) is rotatably connected to the fixed disk (12), and the limit blocks (141) are fixedly mounted on both sides of the fixed disk (12) near the ratchet (142).

3. The stair climbing assist device according to claim 2, characterized in that: A pawl of the ratchet (142) is rotatably connected to a limit lever (1421), and a limit device is provided at the connection position between the ratchet (142) and the limit lever (1421). The maximum rotation angle of the ratchet (142) and the limit lever (1421) is 45 degrees. A contraction groove is provided on a side of the limit lever (1421) close to the regulating wheel device (14), and the shape of the contraction groove is consistent with that of the ratchet.

4. The stair climbing assist device according to claim 1, characterized in that: Sliding grooves are provided on both sides of the inner wall of the climbing frame (2), and sliding blocks are installed at both ends of the climbing device (21). The climbing frame (2) and the climbing device (21) are slidably connected through the sliding grooves and the sliding blocks.

5. The stair climbing assist device according to claim 1, characterized in that: The concave wheel (211) is rotationally connected to the climbing device (21) via a climbing rotating shaft. The transmission device mainly consists of a driven gear (212) and a transmission gear (214). The driven gear (212) is fixed to the lower surface of the concave wheel (211). The output shaft of the transmission motor (213) is fixedly connected to the transmission gear (214). The driven gear (212) and the transmission gear (214) are at the same horizontal position and are meshed with each other.

6. The stair climbing assist device according to claim 1, characterized in that: The device connection block (3) is a "U"-shaped structure, and both ends of the device connection block (3) are fixed to both ends of the upper surface of the climbing frame (2), and the upper surface of the device connection block (3) is fixedly connected to the upper plate (1).

7. The stair climbing assist device according to claim 1, characterized in that: The telescopic sleeve (15) is mainly composed of a sleeve and a sliding rod. The sliding rod is sleeved inside the sleeve and is slidably connected to the sleeve. The other end of the sliding rod is rotatably connected to the rotating base. The other end of the sleeve is rotatably connected to the lower end of the armrest clamping support rod (146). The length of the traction groove (145) is two-fifths of the length of the upper plate (1).

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