CN110893135B

CN110893135B - Stretcher vehicle

Info

Publication number: CN110893135B
Application number: CN201911137018.5A
Authority: CN
Inventors: 张文生; 杜德勇; 孙雷涛; 周燕; 刘瀚凌
Original assignee: Individual
Current assignee: Zhang Wensheng
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2022-08-09
Anticipated expiration: 2039-11-19
Also published as: CN110893135A

Abstract

The invention provides a stretcher vehicle which comprises a lying plate, wherein a guardrail is arranged on the top surface of the lying plate, a supporting leg with a roller is arranged on the bottom surface of the lying plate, a handle cylinder is arranged on the side wall of one end of the lying plate, a sliding sleeve is arranged on one end, away from the handle cylinder, of the bottom surface of the lying plate, a rack is installed in the sliding sleeve, a gear groove is formed in the side wall of the lying plate, a connecting column is in threaded connection with one end, away from the center of the lying plate, of the rack, a buffer wheel is installed on the connecting column, sliding cavities are formed in two sides of the lying plate, ball screws are inserted in the sliding cavities, ball nuts are installed on the ball screws, gears meshed with the racks are installed on the ball nuts, the gears are located in the gear grooves, one ends of the ball screws are connected with handles, the other ends of the ball screws are connected with sliding rods, and fixing devices capable of fixing the sliding rods are arranged on the handles. When the stretcher vehicle passes through the return door of the hospital, the operation can be completed by only one worker, the operation is simple and convenient, the labor can be effectively saved, and the stretcher vehicle is reasonable in structure, simple in operation and suitable for popularization and application.

Description

Stretcher vehicle

Technical Field

The invention relates to a stretcher vehicle.

Background

In outpatient service or hospital, the stretcher is one of the most common devices, and is used for transferring patients, the current stretcher has a single structural function, and cannot meet the use requirement of the stretcher in some environments, if the common stretcher needs more than two workers to operate when in use, the current door used in a main door is generally an automatic return door, the stretcher needs one worker to open the door to enable the stretcher to enter when passing through the return door, so that a single person cannot transport patients under the condition of tension of the person, and the stretcher which can be pushed by one person without opening the door when passing through the return door is urgently needed.

Disclosure of Invention

The invention aims to overcome the defects of the traditional technology and provides the stretcher which can be operated by only one worker when the stretcher passes through a return door of a hospital, is simple and convenient to operate and is suitable for application.

The aim of the invention is achieved by the following technical measures: a stretcher vehicle comprises a lying plate, wherein the top surface of the lying plate is provided with a guardrail, the bottom surface of the lying plate is provided with a supporting leg with a roller, a handle tube is arranged on the side wall of one end of the lying plate, a sliding sleeve is arranged on one end of the bottom surface of the lying plate far away from the handle tube, a rack is arranged in the sliding sleeve, a gear groove is arranged on the side wall of the lying plate, the gear groove corresponds to the sliding sleeve, one end of the rack far away from the center of the lying plate is connected with a connecting column in a threaded manner, the connecting column is provided with a buffer wheel, the lying plate is provided with a sliding cavity which passes through the gear groove, a ball screw is inserted in the sliding cavity, the ball screw is provided with a ball nut which is provided with a gear meshed with the rack, the gear is located the gear groove, ball one end is connected with the handle, and the other end is connected with the slide bar, the cover is provided with the fixing device that can fix the slide bar.

Through the aforesaid setting, alone can operate the stretcher that promotes and pass through the return door, be favorable to using manpower resources sparingly, during the operation, the staff promotes the stretcher and removes to the return door, this in-process, the return door is after contacting with the handle, the return door pushes the handle into the sliding chamber through great elasticity, the handle promotes ball and removes, ball removes in the sliding chamber and drives ball nut and rotate, ball nut rotates the rack and releases, the handle is at the in-process that gets into the sliding chamber, the rack is released the buffer wheel, then it is fixed with the slide bar through fixing device, continue to promote the stretcher, the door body contacts with the buffer wheel, the staff continues the in-process that promotes the stretcher, the rack pushes away the door body through the buffer wheel, the staff can pass through the return door with the stretcher that promotes. After passing through, push the sliding sleeve with the rack can.

As a preferred scheme, the side wall of one end, far away from the ball screw, of the sliding rod is provided with a plurality of positioning grooves, the fixing device comprises a notch arranged on the handle barrel, one end of the notch is hinged with a clamping plate, and the clamping plate is matched with the positioning grooves in a clamping mode.

Through the arrangement, after the buffer wheel extends out, the buffer wheel can be fixed, the elastic force of the door body of the return door is prevented from being too large, and the rack is pushed into the sliding sleeve, so that the normal use of the buffer wheel is ensured.

As a preferred scheme, one end of the notch is provided with a hinge column, one end of the clamping plate is hinged with the handle barrel through the hinge column, and one end of the clamping plate close to the hinge column is provided with a pressing plate capable of lifting the clamping plate.

Through the above arrangement, the operation is convenient, the pressing plate is pressed before the barrel enters the sliding cavity, the clamping plate leaves the handle sleeve, the ball screw can normally move at the moment, when the rack pushes the buffer wheel to extend to a proper position, the pressing plate is loosened, the clamping plate falls and is inserted into the positioning groove, the sliding rod is fixed, and the buffer wheel is fixed at the moment and is convenient to use.

As a preferable scheme, two sides of one end, far away from the handle barrel, of the lying plate are provided with roller grooves, and rollers are installed in the roller grooves.

Through the arrangement, after the cylinder completely enters the sliding cavity, the door body is firstly contacted with the roller before being contacted with the buffer wheel, so that the damage to the door body by the stretcher can be effectively prevented.

Preferably, the buffer wheel comprises a hub and a rotating cylinder, the hub is provided with a rim, the rim is made of rubber, and the hub and the rotating cylinder are connected through a connecting plate. The connecting plate is an arc-shaped connecting plate, the connecting plate is an elastic connecting plate, two ends of the connecting plate are fixedly connected with the wheel hub, and the side wall of the connecting plate is fixedly connected with the rotary drum.

Through the arrangement, the buffer wheel can play a good role in buffering transition, can effectively prevent the buffer wheel from being in hard contact with the door body of the return door, and can effectively protect the door body.

As a preferred scheme, the ball screw is connected with the handle and the slide rod through the couplings respectively.

Through this setting, conveniently with ball and handle. And (4) mounting or dismounting the sliding rod.

Preferably, an elastic pad is arranged at one end of the handle far away from the ball screw.

Through this setting, the handle is hard with the door body of return door, prevents that the handle from damaging the door body.

As a preferred scheme, the connecting column is detachably connected with the rack.

Through the arrangement, the buffer wheel can be replaced or taken down, and the stretcher can be normally used when the buffer wheel is taken down.

Preferably, the universal wheel is a lockable universal wheel.

Through the arrangement, the stretcher is convenient to move or fix.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the advantages that: when the stretcher vehicle passes through the return door of the hospital, the operation can be completed by only one worker, the operation is simple and convenient, the manpower resource can be effectively saved, and the stretcher vehicle is reasonable in structure, simple in operation and suitable for popularization and application.

The invention is further described with reference to the following figures and detailed description.

Drawings

Fig. 1 is a schematic structural view of a stretcher of the present invention.

Fig. 2 is a schematic structural view of a stretcher of the present invention.

Fig. 3 is an enlarged schematic view of structure a in fig. 2.

Fig. 4 is a schematic view of a partial structure of the stretcher of the invention.

Fig. 5 is a schematic view of a partial structure of the stretcher of the invention.

Fig. 6 is a schematic structural view of a stretcher of the present invention.

Fig. 7 is an enlarged schematic view of the structure B in fig. 6.

Fig. 8 is a schematic view of a part of the mechanism of the stretcher of the invention.

Fig. 9 is a schematic view of a part of the mechanism of the stretcher of the invention.

Fig. 10 is a schematic view of a part of the mechanism of a stretcher of the present invention.

Detailed Description

The embodiment is as follows: as shown in fig. 1 to 10, a stretcher comprises a lying plate 1, wherein a guardrail 2 is arranged on the top surface of the lying plate 1, a support leg 3 with a universal wheel 4 is arranged on the bottom surface of the lying plate 1, a barrel 11 is arranged on one end side wall of the lying plate 1, a sliding sleeve 13 is arranged at one end of the barrel 11 far away from the bottom surface of the lying plate 1, a rack 51 is installed in the sliding sleeve 13, a gear groove 16 is arranged on the side wall of the lying plate 1, the gear groove 16 corresponds to the position of the sliding sleeve 13, a connecting column 65 is connected to one end of the rack 51 far away from the center of the lying plate 1 through a thread, a buffer wheel 6 is installed on the connecting column 65, sliding cavities 15 are arranged on two sides of the lying plate 1, the sliding cavities 15 pass through the gear groove 16, a ball screw 54 is inserted in the sliding cavities 15, a ball nut 53 is installed on the ball screw 54, the ball nut 53 is installed on a gear 52 meshed with the rack 51, the gear 52 is located in the gear groove 16, one end of the ball screw 54 is connected with a handle 55, the other end is connected with a slide rod 57, and the handle tube 11 is provided with a fixing device which can fix the slide rod 57.

As shown in fig. 7 and 10, the side wall of one end of the slide rod 57 away from the ball screw 54 is provided with a plurality of positioning grooves 58, the fixing device comprises a notch 19 arranged on the handle tube 11, one end of the notch 19 is hinged with a catch plate 17, and the catch plate 17 is assembled with the positioning groove clips 58.

In this embodiment, a hinge post 10 is disposed at one end of the notch 19, one end of the catch plate 17 is hinged to the handle tube 11 through the hinge post 10, and a pressing plate 18 capable of lifting the catch plate 17 is disposed at one end of the catch plate 17 close to the hinge post 10. The pressing plate 18 is integrally formed with the chucking plate 17.

As shown in fig. 5, two sides of one end of the lying plate 1 far away from the handle tube 11 are provided with roller grooves 14, and rollers 12 are installed in the roller grooves 14. The roller groove 14 is arranged at the corner of the lying plate 1, the roller 12 can rotate in the roller groove, and part of the body of the roller 12 is exposed out of the roller groove 14.

As shown in fig. 3 and 8, the buffer wheel 6 includes a hub 61 and a drum 63, the hub 61 is provided with a rim 62, and the hub 61 and the drum 63 are connected by a connecting plate 64. The connecting plate 64 is an arc-shaped connecting plate, the connecting plate 64 is an elastic connecting plate, two ends of the connecting plate 64 are fixedly connected with the hub 61, and the side wall of the connecting plate 64 is fixedly connected with the rotary drum 63.

As shown in fig. 2 and 10, the ball screw 54 is connected to a handle 55 and a slide rod 57 via a coupling 56.

In this embodiment, an elastic pad 59 is mounted on the end of the handle 55 remote from the ball screw 54. The universal wheel 4 is a lockable universal wheel 4, and the connecting column 65 is in threaded connection with the rack 51.

When the stretcher is used, a worker pushes the stretcher to move towards the return door, in the process, the return door is firstly contacted with the handle 55, the stretcher continues to move, in the process, the handle 55 is pushed into the sliding cavity 15 through large elasticity by the door body of the return door, the handle 55 pushes the ball screw 54 to move, the ball screw 54 moves in the sliding cavity 15 to drive the ball nut 53 to rotate, the ball nut 53 rotates the rack 51 to push the rack out, in the process that the handle 55 enters the sliding cavity 15, the rack 51 pushes the buffer wheel 6 out, then the sliding rod 57 is fixed through the fixing device, the stretcher continues to be pushed, the door body is contacted with the buffer wheel 6, in the process that the worker continues to push the stretcher, the rack 51 pushes the door body through the buffer wheel 6, and the worker can push the stretcher to pass through the return door.

Meanwhile, the handle 55 touches the door body of the return door, a worker operates the clamping plate 17 to enable the clamping plate 17 to leave the notch 19, when the handle 55 enters the sliding cavity 15, the clamping plate 17 corresponds to the positioning groove in position, when the rack 51 extends out of the sliding sleeve 13 in a certain position, the clamping plate 17 can be operated to enable the clamping plate 17 to be inserted into the positioning groove to fix the sliding rod 57, the position of the buffer wheel 6 is fixed at the moment, the stretcher can be moved continuously to push the door body of the return door open through the buffer wheel 6, and the stretcher can enter. After the door is returned, the clamping plate 17 is operated, the clamping plate 17 is made to leave the notch 19, and then the rack 51 is pushed into the sliding sleeve 13.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides a stretcher, includes the service creeper, the service creeper top surface is provided with the guardrail, and the service creeper bottom surface is provided with the landing leg of taking the universal wheel, its characterized in that: the side wall of one end of the lying plate is provided with a handle barrel, one end, away from the handle barrel, of the bottom surface of the lying plate is provided with a sliding sleeve, a rack is installed in the sliding sleeve, the side wall of the lying plate is provided with a gear groove, the gear groove corresponds to the sliding sleeve in position, one end, away from the center of the lying plate, of the rack is in threaded connection with a connecting column, the connecting column is provided with a buffer wheel, the lying plate is provided with a sliding cavity, the sliding cavity penetrates through the gear groove, a ball screw is inserted in the sliding cavity, the ball screw is provided with a ball nut, the ball nut is provided with a gear meshed with the rack, the gear is located in the gear groove, one end of the ball screw is connected with a handle, the other end of the ball screw is connected with a sliding rod, and the handle barrel is provided with a fixing device capable of fixing the sliding rod;

the buffer wheel comprises a hub and a rotating drum, wherein a wheel rim is arranged on the hub, and the hub is connected with the rotating drum through a connecting plate; the connecting plate is an arc-shaped connecting plate, the connecting plate is an elastic connecting plate, two ends of the connecting plate are fixedly connected with the wheel hub, and the side wall of the connecting plate is fixedly connected with the rotary drum.

2. A stretcher as claimed in claim 1, wherein: the side wall of one end, far away from the ball screw, of the sliding rod is provided with a plurality of positioning grooves, the fixing device comprises a notch arranged on the handle barrel, one end of the notch is hinged with a clamping plate, and the clamping plate can be inserted into the positioning grooves.

3. A stretcher as claimed in claim 2, wherein: the one end of notch is provided with the hinge post, the one end of cardboard is passed through the hinge post and is articulated with a section of thick bamboo, the cardboard is close to the one end of hinge post and sets up the clamp plate that can lift the cardboard.

4. A stretcher as claimed in claim 1, wherein: and two sides of one end, far away from the handle barrel, of the lying plate are provided with roller grooves, and rollers are installed in the roller grooves.

5. A stretcher as claimed in claim 1, wherein: the ball screw is connected with the handle and the slide rod through the shaft coupling respectively.

6. A stretcher as claimed in claim 1, wherein: and an elastic pad is arranged at one end of the handle, which is far away from the ball screw.

7. A stretcher as claimed in claim 1, wherein: the connecting column is detachably connected with the rack.