CN112587321A

CN112587321A - Wheelchair capable of preventing movement from being trapped in pits

Info

Publication number: CN112587321A
Application number: CN202110007465.XA
Authority: CN
Inventors: 李嘉艺
Original assignee: Nanjing Boshuyuan Trading Co ltd
Current assignee: Nanjing Boshuyuan Trading Co ltd
Priority date: 2021-01-05
Filing date: 2021-01-05
Publication date: 2021-04-02

Abstract

The invention discloses a wheelchair capable of preventing a pit from being sunk in the process of movement, which comprises a working box, wherein a base is fixedly arranged on the right end surface of the working box, the base is rotatably provided with a swing plate through a swing shaft, the swing plate is internally provided with a linkage cavity, the rear wall surface of the inner cavity of the linkage cavity is rotatably provided with a rotating disc through a hinge joint, the rotating disc is hinged with the right end face of the working box through a rotating gear, a sliding cavity is arranged at the lower side of the linkage cavity, a sliding rod is installed in the sliding cavity in a sliding manner, after the operation is carried out according to the requirements of the invention, the invention can lift the legs and collect the feet when the wheels sink into the pit, and the upper half body is flat on the backrest, so that the wheelchair is prevented from being ejected out when the wheelchair wheels sink into the pits because the human body inclines forwards, and meanwhile, the wheelchair is lifted forwards through the lifting mechanism, so that the wheelchair is separated from the pits.

Description

Wheelchair capable of preventing movement from being trapped in pits

Technical Field

The invention relates to a wheelchair capable of preventing a user from falling into a pit in the process of movement, and mainly relates to the technical field of wheelchairs.

Background

The wheelchair is a chair provided with wheels and capable of helping to replace walking, is divided into electric and manual folding wheelchairs and is an important moving tool for home rehabilitation, turnover transportation, diagnosis and outing activities of wounded persons, patients and disabled persons.

Disclosure of Invention

The invention aims to solve the technical problem of providing a wheelchair capable of preventing the wheelchair from falling into a pit in the process of movement, and overcomes the problems.

The invention is realized by the following technical scheme.

The invention relates to a wheelchair capable of preventing a pit from being sunk in the process of movement, which comprises a work box, wherein a base is fixedly arranged on the right end surface of the work box, a swing plate is rotatably arranged on the base through a swing shaft, a linkage cavity is arranged in the swing plate, a rotating disc is rotatably arranged on the rear wall surface of the inner cavity of the linkage cavity through a hinge, the rotating disc is hinged with the right end surface of the work box through a rotary gear, a sliding cavity is arranged on the lower side of the linkage cavity, a sliding rod is slidably arranged in the sliding cavity, a contact plate is rotatably arranged on the lower end surface of the sliding rod through a hinge, the rotating disc is hinged with the sliding rod through a push rod, a pedal is rotatably arranged on the right end surface of the swing plate through a hinge, the pedal is hinged with the rotating disc through a pull rod, a left sliding chute and a right sliding chute are arranged on the rear wall surface of, a power motor is fixedly arranged on the front end face of the left and right chutes, a power motor shaft is arranged on the front end face of the power motor, a power motor gear is fixedly arranged on the front end face of the power motor shaft, an upper chute and a lower chute are arranged on the rear wall face of the inner cavity of the working box, an upper slide block and a lower slide block are slidably arranged in the upper chute and the lower chute, an extension spring is fixedly arranged between the lower end face of the upper slide block and the lower wall face of the inner cavity of the upper chute and the lower chute, a driven chute is arranged on the left end face of the upper slide block and the lower wall face of the inner cavity of the lower chute, a driven slide block is fixedly arranged between the lower end face of the driven slide block and the lower wall face of the inner cavity of the driven chute, a vertical rod is slidably arranged on the lower wall face of the inner cavity of the working box, a, the rear wall surface of the inner cavity of the working box is rotatably provided with a middle rotating shaft, the front end surface of the middle rotating shaft is fixedly provided with a middle gear, the rear wall surface of the inner cavity of the working box is fixedly provided with an inserting shaft, a rotating hollow slide block is arranged in the working box, the inner slide block is slidably arranged in the inner cavity of the rotating hollow slide block, the inserting shaft is connected with the inner slide block, an inner spring is fixedly arranged between the lower wall surface of the inner cavity of the rotating hollow slide block and the lower end surface of the inner slide block, a lifting circular plate is arranged at the lower side of the rotating hollow slide block, the upper end surface of the lifting circular plate is provided with a circular arc chute, the circular arc slide block is slidably arranged in the inner cavity of the circular arc chute, the circular arc slide block is hinged with the rotating hollow slide block, the front wall surface and, the rear wall surface of the inner cavity of the working box is rotatably provided with a middle shaft, a poking disc and a middle gear are fixedly arranged on the middle shaft from the rear to the front in sequence, the rear wall surface of the inner cavity of the working box is rotatably provided with a contact shaft, the front end surface of the contact shaft is fixedly provided with a contact gear, the middle shaft is connected with the contact shaft through a belt, the rear wall surface of the inner cavity of the working box is rotatably provided with a driving gear through a hinge, the driving gear is meshed with the middle gear, the upper end surface of the working box is rotatably connected with a backrest through a rotating shaft, the left end surface of the backrest is provided with an inclined sliding groove, an inclined sliding block is slidably arranged in the inclined sliding groove, the inclined sliding block is rotatably provided with an upper sliding rod and a lower sliding rod, the upper sliding rod and the lower sliding rod extend to the rear wall surface, the lower end face of the upper sliding rod and the lower end face of the functional sliding groove are connected through an upper spring and a lower spring, the upper sliding rod and the lower sliding rod are meshed with the driving gear, a clamping groove is formed in the right end face of the upper sliding rod and the right end face of the lower sliding rod, and a protruding block is fixedly installed on the left end face of the upper sliding rod and the left end face of the lower.

Furthermore, a driven shaft is rotatably arranged on the lower end face of the working box, and driven small wheels are fixedly arranged on the upper front end face and the upper rear end face of the driven shaft.

Furthermore, the wall rotates the installation axis of rotation behind the work box inner chamber, terminal surface fixed mounting rotating gear before the axis of rotation, the sliding mounting promotes the piece is run through to work box right-hand member face, promote the piece left end face with through promoting the connecting rod articulated connection between the rotating gear, promote the piece right-hand member face with swing board left end face sliding connection.

Furthermore, a spring groove is formed in the upper wall surface of the inner cavity of the working box, an L-shaped sliding rod is slidably mounted in the spring groove, and a pushing spring is fixedly mounted on the right end surface of the L-shaped sliding rod and the right wall surface of the inner cavity of the spring groove.

Further, a base is fixedly installed on the left wall surface of the inner cavity of the functional sliding chute, a sharp block is installed on the base in a hinged and rotating mode, and the sharp block is fixedly connected with the splicing spring on the left wall surface of the inner cavity of the functional sliding chute.

Further, a driving gear is fixedly installed on the transfer gear, a spring force is stored in a fixed installation mode between the driving gear and the rear wall face of the inner cavity of the working box, a driven gear is fixedly installed on the inserting shaft, an auxiliary gear is installed on the rear wall face of the inner cavity of the working box in a hinged rotating mode, and the auxiliary gear is meshed with the driving gear and the inserting shaft respectively.

The invention has the beneficial effects that: after the wheelchair is operated according to the requirements of the invention, when the wheels sink into a pit, the legs can be lifted, the feet can be folded, the upper half body can be flattened on the backrest, the condition that the wheelchair wheels sink into the pit, the human body inclines forwards to eject out the wheelchair is prevented, and meanwhile, the wheelchair is lifted forwards through the lifting mechanism, so that the wheelchair is separated from the pit.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is a schematic view of the structure of C-C in fig. 1.

Fig. 5 is an enlarged schematic view of D in fig. 1.

Fig. 6 is an enlarged schematic view of E in fig. 1.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The wheelchair capable of preventing the pit from being sunk in the process of movement, which is described in the attached drawings 1-6, comprises a work box 10, wherein a base 11 is fixedly installed on the right end face of the work box 10, a swing plate 13 is rotatably installed on the base 11 through a swing shaft 12, a linkage cavity 14 is arranged in the swing plate 13, a rotary disc 15 is rotatably installed on the rear wall face of the inner cavity of the linkage cavity 14 through a hinge, the rotary disc 15 is hinged with the right end face of the work box 10 through a rotary gear 16, a sliding cavity 18 is arranged on the lower side of the linkage cavity 14, a sliding rod 19 is slidably installed in the sliding cavity 18, a contact plate 20 is rotatably installed on the lower end face of the sliding rod 19 through a hinge, the rotary disc 15 is hinged with the sliding rod 19 through a push rod 17, a foot pedal 21 is rotatably installed on the right end face of the swing plate 13 through a hinge, and the foot pedal 21 is hinged with the rotary disc, the rear wall surface of the inner cavity of the working box 10 is provided with a left sliding groove 37 and a right sliding groove 37, a motor sliding plate 65 is slidably mounted in the left sliding groove 37, a power motor 38 is fixedly mounted on the front end surface of the left sliding groove 37 and the right sliding groove 37, a power motor shaft 39 is mounted on the front end surface of the power motor shaft 39, a power motor gear 40 is fixedly mounted on the front end surface of the power motor shaft 39, an upper sliding groove 30 and a lower sliding groove 30 are arranged on the rear wall surface of the inner cavity of the working box 10, an upper sliding block 31 and a lower sliding block 31 are slidably mounted in the upper sliding groove 30 and the lower sliding groove 30, a tension spring 32 is fixedly mounted between the lower end surface of the upper sliding block 31 and the lower sliding groove 30 and the lower wall surface of the inner cavity of the upper sliding groove 30, a driven sliding groove 33 is arranged on the left end surface of the, the lower wall surface of the inner cavity of the working box 10 is provided with a sliding installation vertical rod 27 in a penetrating way, the lower end surface of the vertical rod 27 is fixedly provided with a touch plate 28, a telescopic spring 29 is fixedly installed between the touch plate 28 and the lower end surface of the working box 10, the rear wall surface of the inner cavity of the working box 10 is provided with a rotating shaft 44 in a rotating way, the front end surface of the rotating shaft 44 is fixedly provided with a rotating gear 45, the rear wall surface of the inner cavity of the working box 10 is fixedly provided with an insertion shaft 72, the working box 10 is internally provided with a rotating hollow slide block 70, the inner slide block 71 is arranged in the inner cavity of the rotating hollow slide block 70 in a sliding way, the insertion shaft 72 is connected with the inner slide block 71, the lower wall surface of the inner cavity of the rotating hollow slide block 70 is fixedly provided with an inner spring 73, the lower side of the rotating hollow slide, an arc slide block 69 is slidably mounted in an inner cavity of the arc slide groove 68, the arc slide block 69 is hinged with the rotary hollow slide block 70, the front wall surface and the rear wall surface of the work box 10 are provided with a conveying shaft 41 in a penetrating and rotating manner, wheels 43 are fixedly mounted on the front end surface and the rear end surface of the conveying shaft 41, a conveying gear 42 is fixedly mounted on the conveying shaft 41, an intermediate shaft 49 is rotatably mounted on the rear wall surface of the inner cavity of the work box 10, a dial plate 66 and an intermediate gear 50 are fixedly mounted on the intermediate shaft 49 from back to front in sequence, a contact shaft 47 is rotatably mounted on the rear wall surface of the inner cavity of the work box 10, a contact gear 48 is fixedly mounted on the front end surface of the contact shaft 47, the intermediate shaft 49 is connected with the contact shaft 47 through a belt 51, a driving gear 52 is rotatably mounted on the rear wall surface of the inner cavity of the work box 10 through a hinge, the driving, the utility model discloses a portable electronic device, including backrest 58, inclined sliding groove 59, inclined sliding block 60, upper and lower slide bar 61 extend to wall behind the work box 10 inner chamber, work box 10 inner chamber left side wall is equipped with function spout 62, upper and lower slide bar 61 slidable mounting be in the function spout 62, slide bar 61 down the terminal surface with connect through upper and lower spring 63 between the terminal surface under the function spout 62, upper and lower slide bar 61 with drive gear 52 meshing, upper and lower slide bar 61 right-hand member face is equipped with and blocks groove 56, upper and lower slide bar 61 left end face fixed mounting bulge 64.

Advantageously, a driven shaft 81 is rotatably mounted on the lower end surface of the work box 10, and driven small wheels 82 are fixedly mounted on the upper front and rear end surfaces of the driven shaft 81.

Beneficially, a rotating shaft 24 is rotatably mounted on the rear wall surface of the inner cavity of the working box 10, a rotating gear 25 is fixedly mounted on the front end surface of the rotating shaft 24, a pushing block 23 is slidably mounted on the right end surface of the working box 10 in a penetrating manner, the left end surface of the pushing block 23 is hinged to the rotating gear 25 through a pushing connecting rod 26, and the right end surface of the pushing block 23 is slidably connected to the left end surface of the swinging plate 13.

Advantageously, a spring groove 53 is formed in the upper wall surface of the inner cavity of the work box 10, an L-shaped sliding rod 54 is slidably mounted in the spring groove 53, and a pushing spring 55 is fixedly mounted on the right end surface of the L-shaped sliding rod 54 and the right wall surface of the inner cavity of the spring groove 53.

Advantageously, a base 78 is fixedly mounted on the left wall surface of the inner cavity of the function chute 62, a sharp block 79 is rotatably mounted on the base 78 through a hinge, and a splice spring 80 is fixedly connected between the sharp block 79 and the left wall surface of the inner cavity of the function chute 62.

Advantageously, a driving gear 76 is fixedly mounted on the intermediate gear 45, a spring force 77 is fixedly mounted between the driving gear 76 and the rear wall surface of the inner cavity of the work box 10, a driven gear 74 is fixedly mounted on the insertion shaft 72, an auxiliary gear 75 is rotatably mounted on the rear wall surface of the inner cavity of the work box 10 by means of a hinge, and the auxiliary gear 75 is respectively meshed with the driving gear 76 and the insertion shaft 72.

Sequence of mechanical actions of the whole device:

1. the power motor 38 is started, the power motor 38 drives the power motor gear 40 to rotate through the power motor shaft 39, the power motor gear 40 drives the transportation gear 42 to rotate, the transportation gear 42 drives the wheel 43 to rotate through the transportation shaft 41, and further drives the work box 10 to move rightwards, when the driven small wheel 82 falls into a pit, the right side of the work box 10 moves downwards, and further the touch plate 28 and the lifting circular plate 67 contact the ground, and drives the vertical rod 27 to move upwards, the vertical rod 27 drives the rotation gear 25 to rotate upwards, the rotation gear 25 drives the pushing block 23 to move rightwards through the pushing connecting rod 26, the pushing block 23 drives the swinging plate 13 to rotate around the base 11 through the swinging shaft 12, while the swinging plate 13 rotates, the rotation gear 16 pulls the rotation disc 15 to rotate, the rotation disc 15 pulls the pedal plate 21 to rotate around the hinge joint through the pulling rod 22 to retract the feet, and simultaneously the rotation disc 15 drives the sliding rod 19 to move downwards in the sliding cavity 18 through the pushing, the contact plate 20 is contacted with the ground, so that when the driven small wheel 82 is prevented from sinking into a pit, the vehicle inclines to cause people to slide out, the vertical rod 27 moves upwards to be contacted with the upper and lower sliding blocks 31, the upper and lower sliding blocks 31 move upwards in the upper and lower sliding grooves 30, the upper and lower sliding blocks 31 move upwards to pull the motor sliding plate 65 to move rightwards in the left and right sliding grooves 37 through the connecting rod 36, so that the power motor gear 40 is separated from the transportation gear 42, the power motor gear 40 is contacted with the transfer gear 45 and the contact gear 48, the power motor gear 40 drives the contact gear 48 to rotate, the contact gear 48 drives the intermediate shaft 49 to rotate through the belt 51, the intermediate shaft 49 drives the L-shaped sliding rod 54 to slide rightwards through the poking disc 66, so that the L-shaped sliding rod 54 is separated from the clamping groove 56, the intermediate shaft 49 drives the driving gear 52 to, the upper and lower sliding rods 61 move downward to drive the inclined sliding blocks 60 to slide in the inclined sliding grooves 59, so that the backrest 58 rotates to be horizontal, so that people can be prevented from being ejected out, the upper and lower springs 63 are compressed, the transfer gear 45 rotates to drive the rotary hollow sliding blocks 70 to slide downward on the insertion shafts 72 through the inner sliding blocks 71 through the splicing rods 46, meanwhile, the transfer gear 45 drives the driving gear 76 to rotate through the transfer shaft 44, the driving gear 76 drives the driven gear 74 to rotate through the auxiliary gear 75, the driven gear 74 drives the inner sliding blocks 71 to rotate through the insertion shafts 72, the inner sliding blocks 71 further drive the rotary hollow sliding blocks 70 to rotate, the working box 10 is lifted to move rightward through the rotary hollow sliding blocks 70 sliding in the arc sliding grooves 68, so that the insertion shafts 72 are separated from a deep pit, the vertical rods 27 are reset through the telescopic springs 29, and the upper and lower sliding blocks 31 and the motor sliding plates 65 are reset through the extension springs 32 to enable the power motor gear 40 and the conveying The wheels 42 move to move the working box 10, and at the same time, the function sliding grooves 62 move the upper and lower sliding rods 61 upward to push the sharp blocks 79 to contact with the convex blocks 64 through the splicing springs 80, so that the backrest 58 slowly rotates back around the rotating shaft 57.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a prevent on the way wheelchair that sinks into pit of motion, includes the work box, its characterized in that: the working box is characterized in that a base is fixedly installed on the right end face of the working box, a swing plate is rotatably installed on the base through a swing shaft, a linkage cavity is arranged in the swing plate, a rotating disc is rotatably installed on the rear wall face of an inner cavity of the linkage cavity through a hinge, the rotating disc is hinged and connected with the right end face of the working box through a rotary gear, a sliding cavity is arranged on the lower side of the linkage cavity, a sliding rod is slidably installed in the sliding cavity, a contact plate is rotatably installed on the lower end face of the sliding rod through a hinge, the rotating disc is hinged and connected with the sliding rod through a push rod, a pedal is rotatably installed on the right end face of the swing plate through a hinge, the pedal is hinged and connected with the rotating disc through a pull rod, a left sliding groove and a right sliding groove are formed in the rear wall face of the inner cavity of the working box, a power motor shaft is arranged on the front end face of the power motor, a power motor gear is fixedly arranged on the front end face of the power motor shaft, an upper chute and a lower chute are arranged on the rear wall face of an inner cavity of the working box, an upper sliding block and a lower sliding block are slidably arranged in the upper chute and the lower chute, an extension spring is fixedly arranged between the lower end faces of the upper sliding block and the lower chute and the lower wall face of the inner cavity of the upper sliding chute and the lower sliding chute, a driven sliding block is slidably arranged in the driven sliding chute, a driven spring is fixedly arranged between the lower end face of the driven sliding block and the lower wall face of the inner cavity of the driven sliding chute, the left end face of the driven sliding block is hinged and connected with the motor sliding plate through a connecting rod, a vertical rod is slidably arranged on the lower wall face of the inner cavity of, the rear wall surface of the inner cavity of the working box is rotatably provided with a middle rotating shaft, the front end surface of the middle rotating shaft is fixedly provided with a middle gear, the rear wall surface of the inner cavity of the working box is fixedly provided with an inserting shaft, a rotating hollow slide block is arranged in the working box, the inner slide block is slidably arranged in the inner cavity of the rotating hollow slide block, the inserting shaft is connected with the inner slide block, an inner spring is fixedly arranged between the lower wall surface of the inner cavity of the rotating hollow slide block and the lower end surface of the inner slide block, a lifting circular plate is arranged at the lower side of the rotating hollow slide block, the upper end surface of the lifting circular plate is provided with a circular arc chute, the circular arc slide block is slidably arranged in the inner cavity of the circular arc chute, the circular arc slide block is hinged with the rotating hollow slide block, the front wall surface and, the rear wall surface of the inner cavity of the working box is rotatably provided with a middle shaft, a poking disc and a middle gear are fixedly arranged on the middle shaft from the rear to the front in sequence, the rear wall surface of the inner cavity of the working box is rotatably provided with a contact shaft, the front end surface of the contact shaft is fixedly provided with a contact gear, the middle shaft is connected with the contact shaft through a belt, the rear wall surface of the inner cavity of the working box is rotatably provided with a driving gear through a hinge, the driving gear is meshed with the middle gear, the upper end surface of the working box is rotatably connected with a backrest through a rotating shaft, the left end surface of the backrest is provided with an inclined sliding groove, an inclined sliding block is slidably arranged in the inclined sliding groove, the inclined sliding block is rotatably provided with an upper sliding rod and a lower sliding rod, the upper sliding rod and the lower sliding rod extend to the rear wall surface, the lower end face of the upper sliding rod and the lower end face of the functional sliding groove are connected through an upper spring and a lower spring, the upper sliding rod and the lower sliding rod are meshed with the driving gear, a clamping groove is formed in the right end face of the upper sliding rod and the right end face of the lower sliding rod, and a protruding block is fixedly installed on the left end face of the upper sliding rod and the left end face of the lower.

2. The wheelchair of claim 1 wherein the wheelchair is adapted to prevent sinking into the well during movement of the wheelchair, and wherein: the lower end face of the working box is rotatably provided with a driven shaft, and the front end face and the rear end face of the driven shaft are fixedly provided with small driven wheels.

3. The wheelchair of claim 1 wherein the wheelchair is adapted to prevent sinking into the well during movement of the wheelchair, and wherein: the wall rotates installation axis of rotation behind the work box inner chamber, terminal surface fixed mounting rotating gear before the axis of rotation, the sliding mounting promotes the piece is run through to the work box right-hand member face, promote a left end face with it is connected through promoting the connecting rod is articulated between the rotating gear, promote a right-hand member face with swing board left end face sliding connection.

4. The wheelchair of claim 1 wherein the wheelchair is adapted to prevent sinking into the well during movement of the wheelchair, and wherein: the upper wall surface of the inner cavity of the working box is provided with a spring groove, an L-shaped sliding rod is slidably mounted in the spring groove, and a pushing spring is fixedly mounted on the right end surface of the L-shaped sliding rod and the right wall surface of the inner cavity of the spring groove.

5. The wheelchair of claim 1 wherein the wheelchair is adapted to prevent sinking into the well during movement of the wheelchair, and wherein: the utility model discloses a spring, including function spout inner chamber, sharp-pointed piece of articulated rotation installation on the base, fixed mounting base on the wall of function spout inner chamber left side, sharp-pointed piece with fixed connection concatenation spring between on the wall of function spout inner chamber left side.

6. The wheelchair of claim 1 wherein the wheelchair is adapted to prevent sinking into the well during movement of the wheelchair, and wherein: the transfer gear is fixedly provided with a driving gear, the driving gear is fixedly provided with a spring force storage device between the wall surfaces of the inner cavity of the working box, the insertion shaft is fixedly provided with a driven gear, the wall surface of the inner cavity of the working box is provided with an auxiliary gear in a rotating mode through hinging, and the auxiliary gear is respectively meshed with the driving gear and the insertion shaft.