CN111759593A - A docking device with a negative pressure isolation chamber - Google Patents

Abstract

The invention provides a docking device with a negative pressure isolation cabin, comprising a negative pressure isolation cabin main body and a docking mobile vehicle, the negative pressure isolation cabin main body is mounted on a bracket of the docking mobile vehicle: the negative pressure isolation cabin main body includes a negative pressure isolation cabin body and a docking mobile vehicle. A ballast control device, a cabin, a top sealing port, a filter, a sealing operation hole and a side sealing operation hole; the docking mobile car includes a top support frame, a bottom end support frame, a base support, a car base, a mobile car wheel, Lifting mechanism, bracket, handle and locking linkage. The invention provides a docking device with a negative pressure isolation cabin, which adopts a unitized design, and can realize the docking by moving the docking mobile car below. Transfer from one negative pressure isolation cabin to another negative pressure isolation cabin, so that the wounded and sick can be transferred in a sealed state, which can effectively control the spread of infectious diseases, prevent the pollution of pathogens to the environment, and reduce the infection rate of people during the transfer process.

Description

A docking device with a negative pressure isolation chamber

technical field

The invention belongs to the field of medical negative pressure isolation chambers, in particular to a docking device with a negative pressure isolation chamber.

Background technique

The negative pressure isolation stretcher (also known as the negative pressure isolation cabin) is the integration of the emergency stretcher and the isolation cabin for infectious patients. The negative pressure isolation cabin can realize the pressure difference between inside and outside. Pressed into the isolation cabin, the air in the isolation cabin is "squeezed" and then discharged to a special pipeline, and then discharged after strict filtration, so as to ensure isolation. In general, when transferring patients, two stretchers need to be used for transfer, but in actual use, one stretcher is used to place the negative pressure isolation cabin on the other, so it is very troublesome and time consuming to re-fix the overall operation of the negative pressure isolation cabin. , and it is easy to be transported and transported, causing the patient's condition to worsen and increasing the possibility of pathogens' pollution to the environment.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides a docking device with a negative pressure isolation cabin, which adopts a unitized design, and can realize the docking by moving the docking mobile car below, and then ensure the sealing of the two negative pressure isolation cabins on the docking mobile car. After being connected, the patient is transferred from one negative pressure isolation cabin to another negative pressure isolation cabin, so that the wounded and sick can be transferred in a sealed state, which can effectively control the spread of infectious diseases, prevent the pollution of pathogens to the environment, and reduce the impact of the transfer process. The infection rate of people, in order to achieve this purpose, the present invention provides a docking device with a negative pressure isolation cabin, including a negative pressure isolation cabin main body and a docking mobile car, the negative pressure isolation cabin main body is installed on the bracket of the docking mobile car :

The main body of the negative pressure isolation cabin includes a negative pressure cabin control device, a cabin body, a top sealing port, a filter, a sealing operation hole and a side sealing operation hole. One side of the cabin body is provided with a negative pressure cabin control device, and the cabin is There is a sealing mechanism on the outer ring on the other side of the body, and the sealing mechanisms of the two butt-jointed cabins of the stretcher cooperate with each other, and the other side of the cabin also has a filter and a sealing operation hole, and the sealing operation hole is arranged below the filter and There is a pair, each side of the cabin has a row of side sealing operation holes, the top of the cabin has a row of top sealing openings, the sealing operation holes, the top sealing opening and the side sealing operation holes all have sealing opening zippers and Sealed by a zipper, a pair of sliding rails are arranged in the bottom of the cabin, a sliding plate is arranged on the sliding rails, and a wheel is installed on the bottom of the sliding plate through a bracket, and the wheels are in the corresponding sliding rails and move along the sliding rails;

The docking mobile car includes a top support frame, a bottom end support frame, a base support, a car base, a moving car wheel, a lifting mechanism, a bracket, a handle and a locking linkage mechanism, and there are a pair of top support frames on both sides of the bracket, The upper part of the top support frame is fixed on one side of the corresponding support frame by a set screw, the lower part of the top support frame is connected with the upper part of the corresponding bottom end support frame through a connecting piece, and a pair of bottom end support frames are respectively arranged above both sides of the vehicle base. The lower part of the bottom support frame is fixed on the upper side of the corresponding vehicle base through the base bracket, the lifting mechanism is arranged between the vehicle base and the bracket, and the moving vehicle wheels are installed on the four corners of the vehicle base through the wheels. One side of the bracket is provided with a handle, and the other side of the bracket is provided with a locking linkage mechanism, and the two docking stretchers are interlocked to complete the locking through the locking linkage mechanism after approaching.

As a further improvement of the present invention, the negative pressure chamber control device includes a display screen, a fan, an alarm device and a pressure sensor, the fan, the alarm device and the pressure sensor are arranged below the display screen, and the alarm device and the pressure sensor are electrically connected, The exhaust port of the fan is provided with more than one exhaust filter device. The negative pressure cabin control device of the present application includes a fan, a display screen, a pressure sensor and an alarm device electrically connected to the pressure sensor. The exhaust port of the fan is provided with There are more than one exhaust filter device, which is easy to operate and has good sealing performance.

As a further improvement of the present invention, the sealing mechanism of the cabin body is a zipper sealing mechanism including an external sealing zipper and a matching outer zipper. The zipper is easy to seal, and other methods can also be used as needed.

As a further improvement of the present invention, the sliding plate is equipped with a locking and positioning mechanism, and the locking and positioning mechanism includes a rotating block and a sliding block pull rod, the rotating block is arranged on the corresponding slide rail, and the sliding block pull rod is set At one end of the two slide rails, the sliding block is pulled up by the sliding block pull rod and the sliding block is matched to fix the slide plate. Through the above design, when the slide plate slides to the designated position, the sliding block pull rod can be pulled up to limit the position.

As a further improvement of the present invention, the rotating shaft of the moving vehicle wheel on the side of the vehicle base has a clutch and the clutch is equipped with a clutch pedal. The clutch pedal is used to drive the clutch to realize the locking of the moving vehicle wheel. By stepping on the corresponding clutch pedal, the docking bracket can be adjusted at any time. Lock in position.

As a further improvement of the present invention, a guide wheel that can be lifted and lowered is fixed under the middle part of the vehicle base through a guide wheel bracket, and the control shaft of the guide wheel bracket extends from one side of the vehicle base and is equipped with a guide wheel pedal, which passes through the guide wheel pedal. The guide wheel can be lifted and lowered, and the guide wheel can prevent the docking stretcher from shifting during the moving process.

As a further improvement of the present invention, the lifting mechanism is a rocker lifting mechanism, the rocker lifting mechanism includes a connecting telescopic rod, a screw rod and a rocker, one end of the connecting telescopic rod is fixed on the bracket, and the other end of the telescopic rod passes through The connecting mechanism is connected with one end of the screw rod, the other end of the screw rod is connected with a rocker, and the rocker is fixed on one end of the base of the vehicle through the rocker support. Shaking the handle can realize the extremely convenient lifting and lowering operation of the bracket.

As a further improvement of the present invention, the bottom end support frame is connected by at least a pair of transverse links, and the ends of the two transverse link rods at the upper part of one side are connected by front and rear connecting rods, which can ensure the overall strength and prevent the stretcher from collapsing.

As a further improvement of the present invention, the locking linkage mechanism is a locking block pull rod, the locking block pull rod includes a locking block and a transmission wire, the transmission wire is arranged in the bracket, and one end of the transmission wire extends from the The bracket is extended, and the locking block is installed on the lower or upper part of the outer end of the transmission wire through a spring and corresponds to different docking stretchers. After the two different stretchers are approached, the upper locking block and the lower locking block can be locked by pushing. Tightly complete the docking, so that the design can facilitate docking, and the two docking stretchers can be close together.

The present application is a docking device with a negative pressure isolation cabin, which has the following design points;

1) This application adopts a unitized design, which can realize docking by moving the docking mobile car below, and then transfer the patient from one negative pressure isolation cabin to another after ensuring that the two negative pressure isolation cabins on the docking mobile car are sealed and connected. Negative pressure isolation chamber, which is extremely simple to operate, prevents the pollution of pathogens to the environment, and reduces the infection rate of people during the transfer process;

2) The patient movement process in this application is that after the two negative pressure isolation chambers are sealed and connected, the user's hand passes through the sealing operation hole to transfer the patient on the slide from one negative pressure isolation chamber to another negative pressure isolation chamber. During the movement, the patient is in a sealed environment, thereby preventing the contamination of the environment by pathogens during the movement;

3) The mobile car of this application is easy to operate and has various functions. It can be completed by the locking mechanism, and can be lifted and lowered by the rocker as needed, and can be locked at any time by the clutch pedal, and the guide wheel can be lifted and lowered by the guide wheel pedal;

4) The control device of the negative pressure isolation chamber of this application includes a fan, a display screen, a pressure sensor and an alarm device electrically connected to the pressure sensor. More than one exhaust filter device is provided at the exhaust port of the fan, which is easy to operate and has good sealing performance.

Description of drawings

1 is a schematic diagram of the use of the present invention;

Fig. 2 is the arrangement schematic diagram of the present invention;

Fig. 3 is a partial schematic diagram one of the present invention;

Fig. 4 is the partial schematic diagram two of the present invention;

Fig. 5 is the partial schematic diagram three of the present invention;

6 is a partial schematic diagram four of the present invention;

accessory name;

1. Negative pressure isolation cabin control device; 1-1. Display screen; 1-2. Fan; 1-3. Alarm device; 1-4. Pressure sensor; 2. Cabin; 2-1. Slide rail; 2- 2. Rotating block; 2-3. Sliding block lever; 2-4. Skateboard; 2-5. Wheel; 3. Top sealing port; 3-1. Sealing port zipper; 4. External sealing zipper; 5. Filtration 6. Seal operation hole; 7. Side seal operation hole; 8. Outer zipper; 9. Top support frame; 10. Bottom support frame; 10-1. Transverse link; 10-2. Front and rear connecting rods; 11. Base bracket; 12. Car base; 13. Clutch; 13-1. Clutch pedal; 14. Moving car wheel; 15. Guide wheel; 16. Guide wheel pedal; 17. Connecting telescopic rod; 18. Screw rod; 19 .Rocker; 19-1. Rocker support; 20. Bracket; 20-1. Fastening screw; 21. Grip; 22. Locking block lever; 22-1. Locking block; 22-2 . Transmission wire.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments:

The invention provides a docking device with a negative pressure isolation cabin, which adopts a unitized design, and can realize the docking by moving the docking mobile car below. Transfer from one negative pressure isolation cabin to another negative pressure isolation cabin, so as to realize the transfer of the wounded and sick in a sealed state, which can effectively control the spread of infectious diseases, prevent the pollution of pathogens to the environment, and reduce the infection rate of people during the transfer process.

As an embodiment of the present application, the present application provides a docking device with a negative pressure isolation cabin, including a negative pressure isolation cabin main body and a docking mobile vehicle, and the negative pressure isolation cabin main body is installed on the bracket 20 of the docking mobile vehicle:

The main body of the negative pressure isolation cabin described in this application includes a negative pressure isolation cabin control device 1, a cabin body 2, a top sealing port 3, a filter 5, a sealing operation hole 6 and a side sealing operation hole 7. One side of the cabin body 2 is There is a negative pressure cabin control device 1, the outer ring of the other side of the cabin body 2 is provided with a sealing mechanism, the sealing mechanisms of the cabin bodies 2 of the two docking stretchers cooperate with each other, and the other side of the cabin body 2 also has a filter 5 and Sealing operation holes 6, the sealing operation holes 6 are arranged below the filter 5 and there are a pair, each side of the cabin body 2 has a row of side sealing operation holes 7, and the top of the cabin body 2 has a row of top sealing openings 3 , the sealing operation hole 6, the top sealing port 3 and the side sealing operation hole 7 all have a sealing port zipper 3-1 and are sealed by a zipper, there is a pair of sliding rails 2-1 in the bottom of the cabin 2, the said There is a slide 2-4 on the slide rail 2-1, and a wheel 2-5 is mounted on the bottom of the slide 2-4 through a bracket, and the wheel 2-5 is in the corresponding slide rail 2-1 and moves along the slide rail 2-1;

The docking mobile vehicle described in this application includes a top support frame 9, a bottom support frame 10, a base support 11, a vehicle base 12, a moving vehicle wheel 14, a lifting mechanism, a support 20, a handle 21 and a locking linkage mechanism. There are a pair of top support brackets 9 on both sides of the 20, the upper part of the top support bracket 9 is fixed on one side of the corresponding bracket 20 by a set screw 20-1, and the lower part of the top support bracket 9 is connected to the corresponding bottom end support bracket 10 through a connecting piece. The upper parts are connected to each other, and a pair of bottom support frames 10 are arranged on the upper sides of the vehicle base 12 respectively. 12 and the bracket 20, the wheels 14 of the moving vehicle are installed on the four corners of the vehicle base 12 through between the wheels, one side of the bracket 20 has a handle 21, the other side of the bracket 20 has a locking linkage mechanism, After the two docking mobile vehicles are approached, the locking is completed through the linkage of the locking linkage mechanism.

As a specific embodiment of the present application, the present application provides a docking device with a negative pressure isolation cabin as shown in Figs. On the bracket 20 of the docking mobile car:

The main body of the negative pressure isolation cabin described in this application includes a negative pressure isolation cabin control device 1, a cabin body 2, a top sealing port 3, a filter 5, a sealing operation hole 6 and a side sealing operation hole 7. One side of the cabin body 2 is There is a negative pressure cabin control device 1, the outer ring of the other side of the cabin body 2 is provided with a sealing mechanism, the sealing mechanisms of the cabin bodies 2 of the two docking stretchers cooperate with each other, and the other side of the cabin body 2 also has a filter 5 and Sealing operation holes 6, the sealing operation holes 6 are arranged below the filter 5 and there are a pair, each side of the cabin body 2 has a row of side sealing operation holes 7, and the top of the cabin body 2 has a row of top sealing openings 3 , the sealing operation hole 6, the top sealing port 3 and the side sealing operation hole 7 all have a sealing port zipper 3-1 and are sealed by a zipper, and the sealing mechanism of the cabin 2 is a zipper-type sealing mechanism including an external sealing zipper 4 With the matching outer zipper 8, the cabins 2 of the two docking stretchers are close to the rear sealing mechanism and cooperate with each other and are pulled up by the outer zipper 8 for sealing. It is convenient to use the zipper for sealing operation, and other methods can also be used as needed. There is a pair of slide rails 2-1 in the bottom of the slide rail 2-1, a slide board 2-4 is arranged on the slide rail 2-1, and a wheel 2-5 is installed at the bottom of the slide board 2-4 through a bracket, and the wheel 2-5 is on the corresponding slide rail 2-5. -1 and move along the sliding rail 2-1, the sliding plate 2-4 is equipped with a locking and positioning mechanism, and the locking and positioning mechanism includes a rotating block 2-2 and a sliding block pull rod 2-3. The block 2-2 is arranged on the corresponding slide rail 2-1, and the sliding block pull rod 2-3 is arranged on one end of the two slide rails 2-1 and is pulled up and rotated by the sliding block pull rod 2-3. 2. Fix the slide plate 2-4 with the above design. When the slide plate slides to the designated position, it can be pulled up by the sliding block lever to limit the position;

The negative pressure isolation cabin control device 1 described in this application includes a display screen 1-1, a fan 1-2, an alarm device 1-3 and a pressure sensor 1-4. The fan 1-2, the alarm device 1-3 and the pressure sensor 1-4 is arranged below the display screen 1-1, the alarm device 1-3 is electrically connected with the pressure sensor 1-4, and the exhaust port of the fan 1-2 is provided with more than one exhaust filter device. The control device for the negative pressure chamber applied for includes a fan, a display screen, a pressure sensor, and an alarm device electrically connected to the pressure sensor. More than one exhaust filter device is installed at the exhaust port of the fan, which is easy to operate and has good sealing performance;

The docking mobile vehicle described in this application includes a top support frame 9, a bottom support frame 10, a base support 11, a vehicle base 12, a moving vehicle wheel 14, a lifting mechanism, a support 20, a handle 21 and a locking linkage mechanism. There are a pair of top support brackets 9 on both sides of the 20, the upper part of the top support bracket 9 is fixed on one side of the corresponding bracket 20 by a set screw 20-1, and the lower part of the top support bracket 9 is connected to the corresponding bottom end support bracket 10 through a connecting piece. The upper parts are connected to each other, a pair of bottom support frames 10 are respectively arranged above the two sides of the vehicle base 12, and the lower part of the bottom support frame 10 is fixed on the upper side of the corresponding vehicle base 12 through the base bracket 11, and each pair of bottom support frames 10 passes through At least one pair of transverse links 10-1 are connected, and the ends of the two transverse links 10-1 on the upper part of one side are connected by the front and rear connecting rods 10-2, which can ensure the overall strength and prevent the stretcher from collapsing. Between the vehicle base 12 and the bracket 20 , the lifting mechanism is a rocker lifting mechanism, and the rocker lifting mechanism includes a connecting telescopic rod 17 , a screw rod 18 and a rocker 19 , and one end of the connecting telescopic rod 17 is fixed on the bracket 20 , the other end of the telescopic rod 17 is connected with one end of the screw rod 18 through a connecting mechanism, the other end of the screw rod 18 is connected with a rocker 19, and the rocker 19 is fixed on one end of the vehicle base 13 through the rocker support 19-1 The lifting and lowering of the bracket 20 can be realized by shaking the rocker 19 to drive the connecting telescopic rod 17 and the screw rod 18, and the lifting and lowering operation of the bracket can be realized by shaking the handle. The rotating shaft of the moving vehicle wheel 14 on the side of the vehicle base 13 has a clutch 13 and the clutch 13 is equipped with a clutch pedal 13-1. The clutch pedal 13-1 drives the clutch 13 to lock the moving vehicle wheel 14. By stepping on the corresponding clutch pedal, The docking bracket can be locked and positioned at any time. One side of the bracket 20 has a handle 21, and the other side of the bracket 20 has a locking linkage mechanism. After the two docking stretchers are approached, the locking linkage mechanism is linked to complete the locking. The locking linkage mechanism is a locking block pull rod 22, the locking block pull rod 22 includes a locking block 22-1 and a transmission wire 22-2, the transmission wire 22-2 is arranged in the bracket 20, One end of the transmission wire 22-2 protrudes from the bracket 20, and the locking block 22-1 is installed on the lower part or the upper part of the outer end of the transmission wire 22-2 through a spring and corresponds to different docking stretchers. The upper locking block and the lower locking block are locked to complete the docking by pushing, so the design can facilitate docking, and the two docking stretchers can be close to each other. The bottom of the middle of the car base 13 is fixed with a guide wheel bracket that can be lifted and lowered. Guide wheel 15. The control shaft of the guide wheel bracket protrudes from the side of the vehicle base 13 and is equipped with a guide wheel pedal 16. The guide wheel 15 is lifted and lowered through the guide wheel pedal 16, and the guide wheel is lifted and lowered through the guide wheel pedal. It can prevent the docking stretcher from shifting during the movement.

This application works as follows;

When using the device, it is mainly to move the docking mobile car below to realize docking, that is, hold the handle 21 to move the whole device, and then connect the locking block 22-1 with the locking block of another docking mobile car Butt, directly stuck and locked. After the docking is completed, pull up the outer zipper 8 of the two vehicles to ensure that the negative pressure chamber is still in a sealed state when transferring the patient. After completing the sealing, put your hand into the sealed cabin from the side sealing operation hole 7, pull down the double-head zipper of the negative pressure cabin door, and open the cabin door. At this time, pull the sliding block lever 2-3, Unlock the rotating block 2-2, at this time the wheels 2-5 under the skateboard 2-4 can slide, and are directly transferred from one docking mobile car to another docking mobile car to realize the sealed state of the wounded and sick. transfer. After the transfer is complete, repeat the previous steps to unzip the zipper. At this time, pulling the locking block pull rod 22 to pull apart the two butt-locked vehicles, at this time, the transfer of the patient in a sealed state is realized, which is convenient and quick. The braking system of the device locks the wheels individually by stepping on the clutch 13, and the operation is simple. At the same time, the device can be lifted up and down, the connecting telescopic rod 17 is pushed forward by rocking the rocker 19, and then the connecting telescopic rod 17 pushes up the connected front and rear connecting rods 10-2 to realize the lifting and lowering of the whole device, which is widely used.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any other form, and any modifications or equivalent changes made according to the technical essence of the present invention still fall within the scope of protection of the present invention. .

Claims (9)

1. A docking device with a negative pressure isolation cabin, comprising a negative pressure isolation cabin main body and a docking mobile vehicle, and the negative pressure isolation cabin main body is installed on a bracket (20) of the docking mobile vehicle, characterized in that: The main body of the negative pressure isolation cabin includes a negative pressure cabin control device (1), a cabin body (2), a top sealing port (3), a filter (5), a sealing operation hole (6) and a side sealing operation hole (7). ), a negative pressure cabin control device (1) is provided on one side of the cabin body (2), a sealing mechanism is provided on the outer ring of the other side of the cabin body (2), and the sealing mechanisms of the two docking stretcher cabins (2) are mutually Matching, the other side of the cabin body (2) also has a filter (5) and a sealing operation hole (6), the sealing operation hole (6) is arranged under the filter (5) and has a pair, the cabin is Each side of the body (2) has a row of side sealing operation holes (7), the top of the cabin body (2) has a row of top sealing openings (3), the sealing operation holes (6) and the top sealing openings (3) Both the side sealing operation hole (7) have a sealing opening zipper (3-1) and are sealed by the zipper. There is a pair of sliding rails (2-1) in the bottom of the cabin body (2). The sliding rails (2) -1) There is a slide plate (2-4) on it and the bottom of the slide plate (2-4) is mounted with a wheel (2-5) through a bracket, the wheel (2-5) is in the corresponding slide rail (2-1) and along the The slide rail (2-1) moves; The docking mobile vehicle includes a top support frame (9), a bottom support frame (10), a base support (11), a vehicle base (12), a moving vehicle wheel (14), a lifting mechanism, a bracket (20), and a handle (21) and the locking linkage mechanism, a pair of top support brackets (9) are provided on both sides of the bracket (20), and the upper part of the top support bracket (9) is fixed on the corresponding bracket ( 20) On one side, the lower part of the top support frame (9) is connected with the upper part of the corresponding bottom end support frame (10) through a connecting piece, and a pair of bottom support frames (10) are provided on the upper sides of the vehicle base (12), respectively, The lower part of the bottom support frame (10) is fixed on the upper side of the corresponding vehicle base (12) through the base bracket (11), and the lifting mechanism is arranged between the vehicle base (12) and the bracket (20). The vehicle wheels (14) are installed on the four corners of the vehicle base (12) through between the wheels, one side of the bracket (20) is provided with a handle (21), and the other side of the bracket (20) is provided with a locking linkage mechanism, After the two docking mobile vehicles are approached, the locking is completed through the linkage of the locking linkage mechanism. 2. A docking vehicle with a negative pressure cabin according to claim 1, wherein the negative pressure cabin control device (1) comprises a display screen (1-1), a fan (1-2), an alarm device (1-3) and pressure sensor (1-4), the fan (1-2), alarm device (1-3) and pressure sensor (1-4) are arranged below the display screen (1-1), The alarm device (1-3) is electrically connected to the pressure sensor (1-4), and more than one exhaust filter device is provided at the air outlet of the fan (1-2). 3. A docking device with a negative pressure isolation cabin according to claim 1, characterized in that, the sealing mechanism of the cabin body (2) is a zipper sealing mechanism, comprising an outer sealing zipper (4) and a matching outer zipper (8), the cabins (2) of the two docking stretchers are close to the rear sealing mechanism and cooperate with each other and are pulled up by the outer zipper (8) for sealing. 4. A docking device with a negative pressure isolation cabin according to claim 1, characterized in that, the sliding plate (2-4) is equipped with a locking and positioning mechanism, and the locking and positioning mechanism comprises a rotating block (2-4). -2) and a sliding block pull rod (2-3), the rotating block (2-2) is arranged on the corresponding slide rail (2-1), and the sliding block pull rod (2-3) is arranged on two One end of each slide rail (2-1) is pulled up by the sliding block lever (2-3) and the sliding block (2-2) is rotated to fix the slide plate (2-4). 5. A docking device with a negative pressure isolation cabin according to claim 1, characterized in that the rotating shaft of the moving vehicle wheel (14) on the side of the vehicle base (13) is provided with a clutch (13) and a clutch (13). 13) Equipped with a clutch pedal (13-1) to drive the clutch (13) through the clutch pedal (13-1) to lock the wheels (14) of the moving vehicle. 6 . The docking device with a negative pressure isolation cabin according to claim 1 , wherein a guide wheel ( 15 ) that can be lifted and lowered is fixed under the middle of the vehicle base ( 13 ) through a guide wheel bracket. 7 . The control shaft of the guide wheel bracket extends from one side of the vehicle base (13) and is equipped with a guide wheel pedal (16), and the guide wheel (15) is lifted and lowered through the guide wheel pedal (16). 7. The docking device with a negative pressure isolation cabin according to claim 1, wherein the lifting mechanism is a rocker lifting mechanism, and the rocker lifting mechanism comprises a connecting telescopic rod (17), a screw rod (18) and a rocker (19), one end of the connecting telescopic rod (17) is fixed on the bracket (20), and the other end of the telescopic rod (17) is connected to one end of the screw rod (18) through a connecting mechanism, and the wire The other end of the rod (18) is connected with a rocker (19), the rocker (19) is fixed on one end of the vehicle base (13) through the rocker support (19-1), and the rocker (19) drives the connection to expand and contract The rod (17) and the lead screw (18) realize the lifting and lowering of the bracket (20). 8. A docking device with a negative pressure isolation cabin according to claim 1, characterized in that, each pair of bottom support frames (10) is connected by at least one pair of transverse links (10-1), and the upper part of one side is connected The ends of the two transverse link rods (10-1) are connected by the front and rear connecting rods (10-2). 9 . The docking device with a negative pressure isolation cabin according to claim 1 , wherein the locking linkage mechanism is a locking block pull rod ( 22 ), and the locking block pull rod ( 22 ) It includes a locking block (22-1) and a transmission wire (22-2), the transmission wire (22-2) is arranged in the bracket (20), and one end of the transmission wire (22-2) extends from the bracket (20). ) out, the locking block (22-1) is installed on the lower or upper part of the outer end of the transmission wire (22-2) through a spring and corresponds to different docking stretchers, and the locking is achieved by pushing after the two different stretchers are approached. The clamping block and the lower clamping block are locked to complete the docking.

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