A downstairs device

Abstract

The present invention provides a downstairs device, comprising: a track for fixedly connecting to a corridor wall; a moving mechanism movably connected to the track; and a bearing mechanism connected to the moving mechanism, such that when the bearing mechanism is pressed, the bearing mechanism descends along the track through the moving mechanism, or when the bearing mechanism is unloaded, the bearing mechanism ascends along the track through the moving mechanism. The moving mechanism of the downstairs device of the present invention drives the bearing mechanism by gravity and accumulates upward power during the descending process. After the user goes downstairs, the walking mechanism drives the bearing mechanism to move upward by the accumulated power, without the need to set an external power device, with a simple structure and low price, effectively filling the gap in the field of adding elevators for people's livelihood.

Description

Technical Field

[0001] The present invention relates to the technical field of adding elevators for people's livelihood, and particularly relates to a downstairs device. Background Art

[0002] Currently, in the field of adding elevators for people's livelihood, two common elevator adding methods are used. One is flat landing to households (the added elevator directly reaches the flat landing, and users do not need to walk the stairs), and the other is staggered landing to households (due to the limitation of the original house structure, the elevator exit can only be at the intermediate rest floor of the stairs, and users need to walk another half floor). To make up for the problem of going up and down the last half floor, the currently common method is to use an electric stair climber, but the electric stair climber has a high cost, high maintenance cost, and a complex system, increasing the installation burden and usage cost. Summary of the Invention

[0003] In view of this, the present invention provides a downstairs device to solve the problems of high cost, complex system, and high maintenance cost of the electric stair climber.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A downstairs device according to an embodiment of the present invention includes:

[0006] A track for fixedly connecting to the corridor wall;

[0007] A moving mechanism movably connected to the track;

[0008] A bearing mechanism connected to the moving mechanism, so that when the bearing mechanism is pressed, the bearing mechanism descends along the track through the moving mechanism, or when the bearing mechanism is unloaded, the bearing mechanism ascends along the track through the moving mechanism.

[0009] In an embodiment of the present invention, stroke limits are symmetrically arranged at both ends of the track for restricting the movement of the bearing mechanism inside both ends of the track.

[0010] In an embodiment of the present invention, the moving mechanism includes:

[0011] A support frame rotatably connected to the bearing mechanism;

[0012] A reset component rotatably installed on the support frame and having one end connected to the bearing mechanism, for accumulating power when the bearing mechanism is pressed and descends along the track, or driving the bearing mechanism to ascend along the track when the bearing mechanism is unloaded.

[0013] In an embodiment of the present invention, a gear track groove is provided on the track and arranged along the length direction of the track;

[0014] The reset component includes:

[0015] A bearing rod rotatably connected to the support frame;

[0016] The driving gear is sleeved on the bearing rod and fixedly connected to the bearing rod. Multiple racks matching the gear track grooves are formed on the tooth surface of the driving gear, and the driving gear is engaged with the gear track grooves through the racks. When the bearing mechanism descends along the track, the driving gear drives the bearing rod to rotate through the meshing connection.

[0017] The clockwork spring is wound around the bearing rod and is used for storing power when the bearing rod rotates and releasing power when the bearing mechanism is unloaded, so as to drive the bearing mechanism to ascend.

[0018] In an embodiment of the present invention, a concave sliding groove is further provided on the track, which is fixedly connected to the track and is parallel to the length direction of the gear track groove.

[0019] The moving mechanism further includes: a pulley, which is fixedly arranged on the support frame, and the pulley is used for being installed in the concave sliding groove so that the moving mechanism is slidably connected to the track.

[0020] In an embodiment of the present invention, the moving mechanism further includes a cabin body, which covers the periphery of the reset assembly and is fixedly connected to the support frame.

[0021] In an embodiment of the present invention, the bearing mechanism includes:

[0022] A linkage rod, which is rotatably connected to the support frame, and a linkage rod stopper is arranged on the linkage rod for limiting the up-and-down movement of the linkage rod relative to the support frame.

[0023] A rotary handle, which is arranged at the top of the linkage rod and is fixedly connected to the linkage rod.

[0024] A pedal, which is arranged at the bottom of the linkage rod and is fixedly connected to the linkage rod.

[0025] In an embodiment of the present invention, it further includes:

[0026] A bidirectional rotary damper, which is sleeved on the bearing rod and is used for restricting the rotation speed of the bearing rod to control the ascending / descending speed of the bearing mechanism.

[0027] In an embodiment of the present invention, the downstairs device further includes:

[0028] A ratchet insurance, one end of which is fixedly connected to the linkage rod, and the other end extends above the driving gear and forms a ratchet matching the rack. The length direction of the ratchet insurance is parallel to the length direction of the rotary handle.

[0029] In an embodiment of the present invention, the ratchet is arranged at one end of the ratchet insurance away from the rotary handle.

[0030] At least one of the above technical solutions of the present invention has the following beneficial effects:

[0031] 1. For the downstairs device of the present invention, when the bearing mechanism is pressed, the bearing mechanism descends along the track and accumulates elastic potential energy through a clockwork spring; or when the bearing mechanism is unloaded, the potential energy accumulated by the clockwork spring causes the bearing mechanism to ascend along the track. There is no need to set an external power source, with low cost and simple structure, effectively reducing the installation cost.

[0032] 2. For the downstairs device of the present invention, the rotation speed of the bearing rod is controlled by a two-way damper, thereby controlling the ascending or descending speed of the bearing mechanism. The structure is simple and reliable, improving the safety performance of the downstairs device and further reducing the cost at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic cross-sectional structure view of the downstairs device according to an embodiment of the present invention;

[0034] Figure 2 It is an installation schematic view of the downstairs device according to an embodiment of the present invention;

[0035] Figure 3 It is a schematic structure view of the driving gear of the downstairs device according to an embodiment of the present invention meshing with the track.

[0036] Reference numerals: 100, track; 101, stroke limit; 110, gear track groove; 120, concave sliding groove; 121, pulley; moving mechanism 200; 210, support frame; 211, pulley bracket; 221, bearing rod; 222, driving gear; 223, rack; 224, clockwork spring; 230, cabin; bearing mechanism 300; 310, linkage rod; 311, linkage rod stop; 320, rotary handle; 330, pedal; 400, two-way rotary damper; 500, ratchet insurance. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention fall within the scope of protection of the present invention.

[0038] Unless otherwise defined, technical terms or scientific terms used in the present invention shall have the ordinary meanings understood by those of ordinary skill in the art to which the present invention pertains. The "first", "second" and similar terms used in the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationships will also change accordingly.

[0039] The currently commonly used method for adding a stair climber is to install an electric stair climber on one side of the stair wall. However, the electric stair climber is costly, has high maintenance costs, and a complex system, increasing the installation burden and usage costs. At the same time, since the electric stair climber uses a motor to control the lifting or lowering of the carrying device, the speed changes significantly during startup and shutdown, and it is prone to jolting, resulting in safety accidents.

[0040] Next, the downstairs device according to the embodiments of the present invention will be specifically described with reference to the accompanying drawings.

[0041] As Figure 1 and Figure 2 shown, a downstairs device according to an embodiment of the present invention includes: a track 100, a moving mechanism 200, and a carrying mechanism 300. Figure 1 FIG. is a schematic cross-sectional structure diagram of the downstairs device of the present application. Among them, the track 100 is used for fixedly connecting to the corridor wall. The moving mechanism 200 is movably connected to the track 100, and the carrying mechanism 300 is connected to the moving mechanism 200 so that when the carrying mechanism 300 is pressed, the carrying mechanism 300 descends along the track 100 through the moving mechanism 200, or when the carrying mechanism 300 is unloaded, the carrying mechanism 300 ascends along the track 100 through the moving mechanism 200.

[0042] Specifically, the power source for the descent of the carrying mechanism 300 in this embodiment is the gravity generated by the user. When the user steps onto the carrying mechanism 300, the carrying mechanism 300 is pressed, and then the carrying mechanism 300 can descend along the track 100. At this time, the moving mechanism 200 converts the gravitational potential energy of the user and stores it. When the user leaves the carrying mechanism 300, the carrying mechanism 300 is unloaded, and the moving mechanism 200 releases the accumulated potential energy, causing the carrying mechanism 300 to ascend along the track 100. During the descent and ascent of the carrying mechanism 300, no external power source is required to provide power, and the structure is simple and the maintainability is good. Thus, the installation and usage costs are effectively reduced.

[0043] As Figure 2As shown, in an embodiment of the present invention, travel limiters 101 are symmetrically arranged at both ends of the track 100, and are used to limit the movement of the carrying mechanism 300 inside both ends of the track 100. Specifically, when the carrying mechanism 300 descends or ascends along the track 100 at a relatively high speed, the travel limiters 101 symmetrically arranged at both ends of the track 100 can prevent the carrying mechanism 300 from sliding out of the track 100 when the carrying mechanism 300 moves along the track 100. Thereby, the occurrence of safety accidents is eliminated, and the safety performance is improved.

[0044] As Figure 1 shown, in an embodiment of the present invention, the moving mechanism 200 includes: a support frame 210 and a reset assembly. Among them, the support frame 210 is rotatably connected to the carrying mechanism 300; the reset assembly is rotatably installed on the support frame 210, and one end is connected to the carrying mechanism 300, and is used to accumulate power when the carrying mechanism 300 is pressed and descends along the track 100, or drive the carrying mechanism 300 to ascend along the track 100 when the carrying mechanism 300 is unloaded. Specifically, when the user steps onto the carrying mechanism 300 and the carrying mechanism 300 is pressed, the reset assembly descends to accumulate potential energy, and when the user leaves the carrying mechanism 300 and the carrying mechanism 300 is unloaded, the accumulated potential energy is released, thereby driving the carrying mechanism 300 to ascend along the track 100. The reset assembly is a mechanical structure, which converts and stores the gravitational potential energy of the user to drive the carrying mechanism 300 to ascend along the track 100 after the user uses their own gravitational potential energy to descend, without the need for an external power source to provide power, and the structure is simple and easy to maintain. Thereby, counterfeiting is effectively reduced, and the usage range of the downstairs device is improved.

[0045] As Figure 1 and Figure 3 shown, in an embodiment of the present invention, a gear track groove 110 is provided on the track 100 and is arranged along the length direction of the track 100; the reset assembly includes: a bearing rod 221, a driving gear 222, and a clockwork spring 224. Among them, the bearing rod 221 is rotatably connected to the support frame 210; the driving gear 222 is sleeved on the bearing rod 221 and is fixedly connected to the bearing rod 221. A plurality of racks 223 matching the gear track groove 110 are formed on the tooth surface of the driving gear 222, and are meshed with the gear track groove 110 through the racks 223, and are used to drive the bearing rod 221 to rotate through the meshing connection when the carrying mechanism 300 descends along the track 100; the clockwork spring 224 is wound around the bearing rod 221, and is used to accumulate power when the bearing rod 221 rotates, and release power when the carrying mechanism 300 is unloaded, driving the carrying mechanism 300 to move upward.

[0046] Specifically, the clockwork spring 224 is arranged in a spring chamber (not shown), and the spring chamber is fixedly connected to the support frame 210. One end of the clockwork spring 224 is fixedly connected to the wall of the spring chamber, and the other end is fixedly connected to the bearing rod 221. Thus, when the user steps onto the bearing mechanism 300, the force on the bearing mechanism 300 is F1 downward (the human body gravity F2 and the self-gravity F3 of the downstairs device). At this time, F1 is greater than the resistance F4 of the clockwork spring 224, so that the bearing mechanism 300 can drive the driving gear 222 arranged on the gear track groove 110 to rotate, and start to accelerate uniformly downward along the gear track groove 110 on the track 100. At the same time, the clockwork spring 224 connected to the driving gear 222 through the bearing rod 221 starts to rotate under the drive of the bearing rod 221 and starts to accumulate elastic potential energy. Thus, when the user reaches the bottom of the stairs and leaves the bearing mechanism 300, the downward force on the bearing mechanism 300 is only the self-gravity F3 of the downstairs device. At this time, F3 is less than the resistance F4 of the clockwork spring 224. Therefore, when the bearing mechanism 300 is unloaded, the clockwork spring 224 can release the elastic potential energy to drive the bearing mechanism 300 to move upward along the track 100. Thus, the power-free descent and ascent of the downstairs device are realized, effectively reducing the cost of the downstairs device and reducing the installation cost of the downstairs device.

[0047] As Figure 1 and Figure 2 shown, in an embodiment of the present invention, a concave sliding groove 120 is further provided on the track 100, which is fixedly connected to the track 100 and is parallel to the length direction of the gear track groove 110; the moving mechanism 200 further includes: a pulley 121, which is fixedly arranged on the support frame 210, and the pulley 121 is used to be installed in the concave sliding groove 120 so that the moving mechanism 200 is slidably connected to the track 100.

[0048] Specifically, when the bearing mechanism 300 descends or ascends along the track 100 through the driving gear 222, since the driving gear 222 meshes with the gear track groove 110 through the rack 223, vibrations will occur during the movement. Therefore, a pulley bracket 211 can be arranged on the support frame 210, and a pulley 121 is arranged below the pulley bracket 211. Through the good contact between the pulley 121 and the concave sliding groove 120, the vibration generated when the driving gear 222 moves can be reduced. Thus, the vibration during the descent or ascent of the downstairs device is effectively reduced, the continuity of the speed during the ascent or descent of the downstairs device is ensured, and the use comfort is improved. In addition, the use of two tracks 100 in this application is only for illustration, and in actual applications, the number of tracks 100 should not be limited.

[0049] As Figure 1As shown, in an embodiment of the present invention, the moving mechanism 200 further includes a cabin 230, which covers the periphery of the reset assembly and is fixedly connected to the support frame 210. Specifically, the clockwork spring 224 in the moving mechanism 200 accumulates a large amount of elastic potential energy when descending. When the clockwork spring 224 releases the elastic potential energy to drive the load-bearing mechanism 300 to rise, it needs to expand, and the exposed clockwork spring 224 is relatively dangerous. Therefore, by covering the moving mechanism 200 with the cabin 230, the clockwork spring 224 is isolated from the outside, thereby effectively improving the safety performance of the downstairs device.

[0050] As Figure 1 and Figure 2 As shown, in an embodiment of the present invention, the load-bearing mechanism 300 includes: a linkage rod 310, a rotating handle 320, and a pedal 330. Among them, the linkage rod 310 is rotatably connected to the support frame 210, and a linkage rod stopper 311 is provided on the linkage rod 310 to limit the up and down movement of the linkage rod 310 relative to the support frame 210; the rotating handle 320 is provided at the top of the linkage rod 310 and is fixedly connected to the linkage rod 310; the pedal 330 is provided at the bottom of the linkage rod 310 and is fixedly connected to the linkage rod 310.

[0051] Specifically, when the user needs to use the load-bearing mechanism 300, the rotating handle 320 and the pedal 330 fixedly connected to the linkage rod 310 can be rotated to be parallel to the stairs and the user can step on the pedal 330. At this time, the load-bearing mechanism 300 is pressed, so that the load-bearing mechanism 300 can overcome the resistance of the clockwork spring 224 and descend along the track 100. It should be noted that the load-bearing mechanism 300 in this application includes but is not limited to other loading tools such as whether to use the pedal 330, backrest, folding seat, folding wheelchair, etc.

[0052] As Figure 1 As shown, in an embodiment of the present invention, it further includes: a bidirectional rotary damper 400. The bidirectional rotary damper 400 is sleeved on the bearing rod 221 and is used to limit the rotation speed of the bearing rod 221 to control the rising / falling speed of the load-bearing mechanism 300. Specifically, when the user steps on the load-bearing mechanism 300 and makes the load-bearing mechanism 300 pressed and descend, the load-bearing mechanism 300 will perform a uniformly accelerated descending motion. At the same time, after the user leaves the load-bearing mechanism 300, the upward elastic force generated by the clockwork spring 224 is much greater than the self-gravity of the downstairs device. Therefore, the downstairs device has a relatively fast speed when resetting. The bidirectional rotary damper 400 can set the speed when descending and rising, so that the maximum speed when the load-bearing mechanism 300 descends or rises is lower than or equal to the speed set by the rotary damper. Thus, the speed of the downstairs device when descending or rising is controllable, effectively improving the safety performance.

[0053] As Figure 1 and Figure 3As shown, in one embodiment of the present invention, the descending device also includes: a ratchet safety 500, one end of which is fixedly connected to the linkage rod 310, and the other end extends to the top of the driving gear 222 and is formed with a ratchet matching the rack 223, and the length direction of the ratchet safety 500 is parallel to the length direction of the rotating handle 320, and the ratchet is arranged at the end of the ratchet safety 500 away from the rotating handle 320.

[0054] Specifically, the ratchet of the ratchet safety 500 is set at the end of the ratchet safety 500 away from the rotating handle 320. When the user rotates the rotating handle 320 and the pedal 330 fixedly connected to the linkage rod 310 to be parallel to the stairs, the ratchet safety 500 will be driven to rotate above the driving gear 222. The ratchet of the ratchet safety 500 can resist the driving gear 222 so that the driving gear 222 can only rotate downward. Therefore, when the user climbs onto the supporting mechanism 300, the supporting mechanism 300 can only move downward. When the supporting mechanism 300 reaches the bottom of the stairs and the user needs to leave the supporting mechanism 300, the driving gear 222 cannot rotate upward due to the obstruction of the ratchet safety 500, so that the spring spring 224 cannot release elastic potential energy to drive the supporting mechanism 300 to rise, and the supporting mechanism 300 thus stays at the bottom of the stairs. At this time, the user can rotate the rotating handle 320 and the pedal 330 fixedly connected to the linkage rod 310 to a direction parallel to the stairs. At this time, the ratchet safety 500 is away from the driving gear 222, and the supporting mechanism 300 can rise along the track 100 driven by the spring spring 224. Therefore, the user is given sufficient time to leave the supporting mechanism 300, which effectively improves the comfort and safety of the stair descender.

[0055] The stair descending device of the present invention, when the bearing mechanism 300 is under pressure, makes the bearing mechanism 300 descend along the track 100 and accumulates elastic potential energy through the spring 224, or when the bearing mechanism 300 is unloaded, makes the bearing mechanism 300 ascend along the track 100 through the potential energy accumulated by the spring 224, without the need to set an external power source, has low cost and simple structure, and effectively reduces the installation cost. At the same time, the rotation speed of the bearing rod 221 is controlled by the bidirectional damper, thereby controlling the ascending or descending speed of the bearing mechanism 300, the structure is simple and reliable, the safety performance of the stair descending device is improved, and the cost is further reduced.

[0056] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for going downstairs, include: Track, used for fixed connection to the corridor wall; A moving mechanism, movably connected to the track; The carrying mechanism is connected to the moving mechanism so that when the carrying mechanism is compressed, the moving mechanism allows the carrying mechanism to descend along the track, or when the carrying mechanism is unloaded, the moving mechanism allows the carrying mechanism to ascend along the track; The mobile mechanism includes: A support frame rotatably connected to the bearing mechanism; A reset assembly is rotatably mounted on the support frame, and one end of the reset assembly is connected to the bearing mechanism, and is used to store power when the bearing mechanism is pressed and descends along the track, or to drive the bearing mechanism to rise along the track when the bearing mechanism is unloaded; The track is provided with gear track grooves, which are arranged along the length of the track; The reset components include: A bearing rod, the bearing rod is rotatably connected to the support frame; A driving gear is inserted into and fixedly connected to the bearing rod. A plurality of racks matching the gear track grooves are formed on the tooth surface of the driving gear, and the racks are meshed with the gear track grooves to drive the bearing rod to rotate through the meshing connection when the carrying mechanism descends along the track. The spring is wound around the bearing rod and is used to store power when the bearing rod rotates, and release the power when the carrying mechanism is unloaded, so as to drive the carrying mechanism upward; The track is also provided with a concave sliding groove, which is fixedly connected to the track and parallel to the length direction of the gear track groove; The moving mechanism further includes: a pulley fixedly arranged on the support frame, the pulley being used to be installed in the concave sliding groove so that the moving mechanism is slidably connected to the track; The moving mechanism also includes a cabin, which is arranged on the periphery of the reset assembly and is fixedly connected to the support frame; The bearing mechanism includes: A linkage rod is rotatably connected to the support frame, and a linkage rod stopper is provided on the linkage rod to limit the linkage rod from moving up and down relative to the support frame; A rotating handle is arranged on the top of the linkage rod and is fixedly connected to the linkage rod; The pedal is arranged at the bottom of the linkage rod and is fixedly connected with the linkage rod.

2. The stair-going device according to claim 1, It is characterized in that Travel limiters are symmetrically arranged at both ends of the track to limit the inner movement of the bearing mechanism at both ends of the track.

3. The stair-going device according to claim 1, It is characterized in that Also includes: A bidirectional rotation damper is provided on the bearing rod and is used to limit the rotation speed of the bearing rod to control the rising / falling speed of the bearing mechanism.

4. The stair-going device according to claim 1, It is characterized in that Also includes: A ratchet safety has one end fixedly connected to the linkage rod, and the other end extends above the driving gear and is formed with a ratchet that matches the rack. The length direction of the ratchet safety is parallel to the length direction of the rotating handle.

5. The stair-going device according to claim 4, It is characterized in that The ratchet is arranged at an end of the ratchet safety device away from the rotating handle.

Images