CN111298154A - Liver disease equipment blood sample bacteria inactivation device - Google Patents

Abstract

The invention discloses a blood sample germ inactivation device for a liver disease appliance; it comprises a box body, a liver disease appliance placing rack, a horizontal rotating rod, a driving motor A and an ultraviolet sterilization lamp; The rod is fixed between the two rotating lugs; the right end face of the box is provided with a rotating hole through the right rotating lug; the drive motor A is fixed on the right end of the casing, and its rotating shaft rotation hole extends into the right end of the horizontal rotating rod. connection; the liver disease appliance placement rack is fixed in the middle of the horizontal rotating rod; two ultraviolet sterilization lamps are correspondingly arranged in the upper left and right upper parts of the box body, and the other two ultraviolet sterilization lamps are correspondingly fixed in the lower left part and inner right lower part of the box body, The light-emitting directions of the four ultraviolet sterilization lamps are all toward the middle of the box. Effect: The drive motor A can drive the liver disease instrument placement rack to turn up and down, and the lights emitted by the four ultraviolet sterilization lamps can completely surround the liver disease instrument placement rack to sterilize the surface of the liver disease instruments placed on the rack, so that germs can be sterilized. Inactivation effect is good.

Description

Liver disease equipment blood sample bacteria inactivation device

technical field

The invention relates to the technical field of medical equipment, in particular, to a blood sample germ inactivation device for liver disease equipment.

Background technique

At present, liver disease is a common disease, of which hepatitis is the most common, especially hepatitis B is highly contagious, and the transmission route is mainly blood transmission. Therefore, timely processing of blood samples from hepatitis B patients is the main means to control the spread of the disease.

In the prior art, the method for processing blood samples is mainly to inactivate and irradiate the surface of the instruments contaminated with liver disease blood samples by baking lamps. The inactivation effect of germs is poor due to lack of irradiation, which affects the quality of germ inactivation. The incomplete inactivation of germs will easily lead to cross-infection when the corresponding liver disease equipment is reused, which brings great harm to medical staff. Difficulty of work.

Thereby, existing problems remain to be solved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a device for inactivating bacteria in blood samples for liver disease instruments.

The technical scheme adopted by the present invention to solve the problems of the prior art is as follows: a device for inactivating bacteria in blood samples for a liver disease appliance, comprising a box body, a liver disease appliance placement rack, a horizontal rotation rod for driving the liver disease appliance placement rack to turn up and down, A driving motor A for driving the rotation of the horizontal rotating rod and four ultraviolet sterilization lamps for irradiating and inactivating the blood sample bacteria on the liver disease apparatus;

The middle part of the left and right inner walls of the box body is relatively fixed with two rotating lugs; the horizontal rotating rod is rotatably fixed between the two rotating lugs; The rotating hole of the rotating ear seat; the driving motor A is fixed to the left on the right end face of the box body, and its left end rotating shaft extends from the rotating hole into the rotating ear seat on the right side and is connected with the horizontal rotating rod The right end is fixedly connected; the liver disease appliance placement rack is fixed in the middle of the horizontal rotating rod; two of the ultraviolet sterilization lamps are correspondingly fixed in the upper left and right upper parts of the box, and the other two ultraviolet The sterilization lamps are correspondingly fixed in the lower left part and the lower right part of the box body, and the light emitting directions of the four ultraviolet sterilization lamps are all toward the middle of the box body.

The above technical solutions are further elaborated below:

Preferably, it also includes a vertical rotating rod for driving the liver disease appliance placement rack to rotate left and right, and a driving motor B for driving the vertical rotating rod to rotate;

The drive motor B is fixed upward on the middle of the horizontal rotating rod, and its upper end rotating shaft is fixedly connected to the middle of the bottom of the liver disease appliance placement rack.

Preferably, the liver disease appliance placement rack comprises a bottom plate, a left clamping plate for holding the liver disease appliance, a right clamping plate for holding the liver disease appliance, and a locking bolt for locking the liver disease appliance;

The left clamping plate and the right clamping plate are arranged opposite to each other and are both vertically fixed on the upper end surface of the bottom plate; the locking bolts pass through the right clamping plate from right to left.

Preferably, a left soft rubber pad is attached to the right end surface of the left clamping plate; a right soft rubber pad is attached to the left end of the locking bolt;

When the locking bolt is screwed to the left, the liver disease instrument that needs to be inactivated by blood sample bacteria is clamped between the left soft rubber pad and the right soft rubber pad.

Preferably, each of the four ultraviolet sterilization lamps includes a lamp board and a plurality of lamp assemblies uniformly fixed on the light-emitting surface of the lamp board;

A layer of reflective film is respectively adhered to the non-lamp assembly area on the light-emitting surface of the lamp board of the four ultraviolet sterilization lamps, and the outer wall of the horizontal rotating rod is also wrapped with a layer of reflective film.

Preferably, it also includes a box cover;

The front end surface of the box body is formed as an opening; the left edge of the box cover is rotatably connected with the left edge of the front end opening of the box body through a rotating shaft; A lock head matched with the lock cylinder is arranged on the middle and upper part of the right edge of the open front end of the box body.

Preferably, a pallet is fixed horizontally in the middle of the right end face of the box body; the driving motor A is placed on the pallet.

Preferably, a power box is fixed on the front side of the pallet;

The power box is provided with a first switch key for controlling the operation of the driving motor A, a second switch key for controlling the operation of the driving motor B, and the synchronization of the four ultraviolet sterilization lamps. The third key to work.

Preferably, a rechargeable battery is provided in the power box;

The first switch is electrically connected between the rechargeable battery and the drive motor A; the second switch is electrically connected between the rechargeable battery and the drive motor B; The third switch is electrically connected between the rechargeable battery and the four ultraviolet sterilization lamps.

Preferably, it also includes four swivel wheels with brakes;

The four universal rotating wheels are correspondingly fixed at the four corners of the bottom of the box.

The beneficial effects of the present invention are:

First, the device for inactivating bacteria in blood samples of a liver disease appliance provided by the present invention, in the specific implementation, when the driving motor A is started, the driving motor A can drive the horizontal rotating rod to rotate, In order to drive the liver disease appliance placement rack to turn upside down, when the liver disease appliance placement rack is placed on the liver disease appliance placement rack, the four ultraviolet sterilization lamps are activated at the same time, and the lights emitted by the four ultraviolet sterilization lamps can be The surface of the liver disease device placed on the liver disease device placement rack is fully surrounded by irradiation and sterilization in all directions, so that the bacteria inactivation effect is good, so that the quality of bacteria inactivation can be greatly improved, and the bacteria inactivation is comprehensive, so that the corresponding The device for liver disease is not easy to cause cross-infection when it is reused, which brings great difficulty to the medical staff. Furthermore, the present invention has strong practicability and good use effect.

Second, in this embodiment, on the one hand, because the present invention also includes a vertical rotation rod for driving the liver disease appliance placement rack to rotate left and right, and a drive motor B for driving the vertical rotation rod to rotate; The drive motor B is fixed upward on the middle of the horizontal rotating rod, and its upper end shaft is fixedly connected to the bottom middle of the liver disease appliance placement rack. In this way, the drive motor A and the drive are simultaneously activated. When the motor B is turned on, even the liver disease devices placed on the liver disease device placement rack can be turned up and down and rotated horizontally, so that almost every corner of the surface can be better irradiated in place, so that the surface bacteria can be sterilized. The best living effect can be achieved. On the other hand, the device for liver disease to be placed is fixed by pressing the locking bolt to the left clamping plate, so that the device for liver disease has good placement and stability, and is not easy to be turned upside down. It is thrown away by rotating left and right, so that the present invention has good reliability in use.

Third, in this technical solution, on the one hand, the liver disease appliance that needs to be inactivated by blood sample bacteria is clamped between the left soft rubber pad and the right soft rubber pad, so that the corresponding liver disease appliance is protected. The effect is good, it is not easy to be damaged, and the service life is long. The outer wall of the rotating rod is also wrapped with a layer of reflective film, so that the light emitted by the plurality of lamp assemblies will be continuously reflected to the surface of the liver disease appliance placed on the liver disease appliance placement rack, so that the light utilization rate is improved. High, so that the inactivation effect of liver disease equipment can be further optimized, and furthermore, the present invention has an excellent use effect, making it suitable for popularization.

Description of drawings

Fig. 1 is the overall plan structure schematic diagram of the blood sample germ inactivation device of the liver disease appliance of the present invention when the box cover is opened;

Fig. 2 is the overall plan structure schematic diagram of the liver disease appliance blood sample germ inactivation device of the present invention when the box cover is removed;

Fig. 3 is the use state reference diagram of the liver disease apparatus blood sample germ inactivation device of the present invention in Fig. 2;

Fig. 4 is in Fig. 1, the enlarged view of described liver disease appliance placement rack;

The realization, functional characteristics and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Reference number:

Liver disease apparatus blood sample germ inactivation device 1000;

Box 10;

Rotating ear seat 101; rotating hole 102; locking head 103; pallet 104;

Liver disease appliance placement rack 20;

Bottom plate 201; left clamping plate 202; right clamping plate 203; locking bolt 204; left soft rubber pad 205; right soft rubber pad 206;

Horizontal rotating rod 30;

Drive the motor A40;

Ultraviolet sterilization lamp 50;

Lamp board 501; Lamp assembly 502; Reflective film 503;

vertical rotating rod 60;

Drive motor B70;

box cover 80;

Lock cylinder 801;

shaft member 90;

Power box 100;

The first switch key 1001; the second switch key 1002; the third switch key 1003.

Universal rotating wheel 110;

Liver disease appliance 2000;

Detailed ways

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, so as to understand the essence of the present invention more clearly and intuitively.

With reference to Figure 1, Figure 2, Figure 3 and Figure 4;

A device 1000 for inactivating bacteria in blood samples for liver disease instruments provided by the present invention includes a box body 10, a liver disease instrument placement rack 20, a horizontal rotating rod 30 for driving the liver disease instrument placement rack 20 to turn up and down, and for driving the The drive motor A40 rotated by the horizontal rotating rod 30 and the four ultraviolet sterilization lamps 50 for irradiating and inactivating the blood sample germs on the liver disease apparatus 2000;

Wherein, two rotating lugs 101 are relatively fixed in the middle of the left and right inner walls of the box body 10 ; the horizontal rotating rod 30 is rotatably fixed between the two rotating lugs 101 ; A rotating hole 102 is opened through the rotating ear seat 101 on the right side; the driving motor A40 is fixed to the left on the right end face of the box body 10, and its left end rotating shaft extends from the rotating hole 102 into the rotating shaft on the right side. The ear seat 101 is fixedly connected to the right end of the horizontal rotating rod 30; the liver disease appliance placement rack 20 is fixed in the middle of the horizontal rotating rod 30; two of the ultraviolet sterilization lamps 50 are correspondingly fixed on the The inner left upper part and the inner right upper part of the box body 10, the other two ultraviolet sterilization lamps 50 are correspondingly fixed in the inner left lower part and the inner right lower part of the box body 10, and the four ultraviolet sterilization lamps 50 are respectively fixed. The light-emitting directions are all toward the inner middle of the box body 10 , and the liver disease appliance placement rack 20 is also basically located in the inner middle of the box body 10 when the liver disease appliance placement rack 20 is fixed on the horizontal rotating rod 30 .

Based on the above, it is clear that, when the present invention is implemented, it is mainly used as the device 1000 for inactivating bacteria in blood samples for liver disease instruments.

In the process of using the present invention, when the driving motor A40 is activated, the driving motor A40 can drive the horizontal rotation rod 30 to rotate, so as to drive the liver disease appliance placement rack 20 to turn up and down, When the liver disease appliance 2000 is placed on the liver disease appliance placement rack 20, the four ultraviolet sterilization lamps 50 are activated at the same time, and the lights emitted by the four ultraviolet sterilization lamps 50 can completely surround the liver disease appliance. The surface of the liver disease instrument 2000 placed on the rack 20 is subjected to all-round irradiation sterilization, so that the germ inactivation effect is good, so that the quality of germ inactivation can be greatly improved, and the germ inactivation is comprehensive, so that the corresponding liver disease instrument 2000 can be reused. It is not easy to cause cross infection and bring great difficulty to the medical staff.

Furthermore, the present invention has strong practicability and good use effect.

Preferably, in a specific implementation, the present invention further includes a vertical rotating rod 60 for driving the liver disease appliance placement rack 20 to rotate left and right, and a driving motor B70 for driving the vertical rotating rod 60 to rotate;

Wherein, the driving motor B70 is fixed upward on the middle of the horizontal rotating rod 30 , and its upper end rotating shaft is fixedly connected with the bottom middle of the liver disease appliance placement rack 20 .

From this, it is clear that:

Because the present invention also includes a vertical rotating rod 60 for driving the liver disease appliance placement rack 20 to rotate left and right, and a driving motor B70 for driving the vertical rotating rod 60 to rotate; the driving motor B70 is fixed upward. In the middle of the horizontal rotating rod 30 , the upper end of the rotating shaft is fixedly connected to the bottom middle of the liver disease appliance placement rack 20 .

In this way, when the drive motor A40 and the drive motor B70 are activated at the same time, the liver disease device 2000 placed on the liver disease device placement rack 20 can be turned up and down and rotated horizontally continuously, so that Almost every corner of the surface can be better irradiated in place, so that the inactivation effect of bacteria on the surface can be optimal.

In addition, in this technical solution, the liver disease device placement rack 20 includes a bottom plate 201, a left clamp plate 202 for holding the liver disease device 2000, a right clamp plate 203 for holding the liver disease device 2000, and a lock plate 203. The locking bolt 204 of the liver disease-fixing device 2000;

Wherein, the rotating shaft of the upper end of the driving motor B70 is welded and connected to the middle of the lower bottom surface of the bottom plate 201 ; ; The locking bolts 204 pass through the right clamping plate 203 from right to left.

Based on the above paragraphs, it can be understood that the liver disease device 2000 to be placed is fixed by pressing the locking bolt 204 to the left clamping plate 202, so that the liver disease device 2000 has good placement and fixity and is not easy to be turned upside down. And the left and right rotations are thrown away, so that the present invention has good reliability in use.

Furthermore, in specific implementation, a left soft rubber pad 205 is adhered to the right end surface of the left clamping plate 202; a right soft rubber pad 206 is adhered to the left end of the locking bolt 204;

When the locking bolt 204 is turned to the left, the liver disease device 2000 to be inactivated by the blood sample bacteria is clamped between the left soft rubber pad 205 and the right soft rubber pad 206 .

Thus, the liver disease device 2000 that needs to be inactivated by blood sample bacteria is clamped between the left soft rubber pad 205 and the right soft rubber pad 206, so that the liver disease device 2000 that needs to be inactivated by bacteria is protected. The effect is good, so that it is not easy to be damaged, so that the service life is long.

Thirdly, in this embodiment, the four ultraviolet sterilization lamps 50 each include a lamp board 501 and a plurality of lamp components 502 uniformly fixed on the light-emitting surface of the lamp board 501;

The ends of the four light panels 501 are preferably respectively fixed to the inner wall of the box body 10 by fastening bolts; specifically, the upper edge of the light panels 501 on the upper left is fixed to the box body 10 by fastening bolts. The left side of the top inner wall and the lower edge are fixed to the upper part of the left inner wall of the box body 10 by tightening bolts; the upper edge of the lamp board 501 on the upper right is fixed to the right side of the top inner wall of the box body 10 by tightening bolts, and the lower edge passes through Fastening bolts are fixed to the upper part of the right inner wall of the box body 10; the upper edge of the lamp panel 501 in the lower left part is fastened to the lower part of the left inner wall of the box body 10 by fastening bolts, and the lower edge is fastened to the box body by fastening bolts 10 on the left side of the bottom inner wall; the upper edge of the light panel 501 in the lower right part is fixed to the lower part of the right inner wall of the box body 10 by fastening bolts, and the lower edge is fixed to the right side of the bottom inner wall of the box body 10 by fastening bolts;

A layer of reflective film 503 is respectively adhered to the non-lamp assembly 502 area on the light-emitting surface of the lamp board 501 of the four ultraviolet sterilization lamps 50 , and the outer wall of the horizontal rotating rod 30 is also wrapped with a layer of reflective film 503 .

A layer of reflective film 503 is respectively adhered to the non-lamp assembly 502 area on the light-emitting surface of the lamp board 501 of the four ultraviolet sterilization lamps 50, and the outer wall of the horizontal rotating rod 30 is also wrapped with a layer of reflective film 503, so, Even if the lights emitted by the plurality of lamp assemblies 502 are continuously reflected to the surface of the liver disease device 2000 placed on the liver disease device placement rack 20, the light utilization rate is high, and the bacteria inactivation effect of the liver disease device 2000 is achieved. can be further optimized.

Furthermore, the use effect of the present invention is excellent, so that it is suitable for popularization.

On the basis of the above, for the clamped part of the surface of the liver disease instrument 2000, there must be some parts that cannot be irradiated by light due to being clamped. At this time, after the germ inactivation is performed once, the corresponding liver disease instrument 2000 can be replaced. The angle and position are fixed again, so that the parts that cannot be irradiated by the light are exposed on the surface due to being clamped in the first time, so that the second time can be irradiated in place and can be inactivated by light.

Moreover, when necessary, the left clamping plate 202 , the right clamping plate 203 , the locking bolt 204 , the left soft rubber pad 205 and the right soft rubber pad 206 of the liver disease appliance placement rack 20 can be correspondingly provided with a plurality of , so that a plurality of liver disease instruments 2000 can be clamped at the same time, so that the bacteria inactivation treatment is performed on the plurality of liver disease instruments 2000 synchronously.

It should be added that, in the specific implementation, the present invention also includes a box cover 80;

Wherein, the front end of the box body 10 is formed as an opening; the left edge of the box cover 80 is rotatably connected with the left edge of the front end opening of the box body 10 through a shaft member 90; and the upper part of the right edge of the box cover 80 A lock cylinder 801 is provided; a lock head 103 matched with the lock cylinder 801 is provided in the upper middle and upper part of the right edge of the open front end of the box body 10 .

Therefore, when the box cover 80 is opened, even if the liver disease instrument 2000 to be subjected to the germ inactivation treatment is placed on the liver disease instrument placing rack 20 or removed from the liver disease instrument placing rack 20, the germs can be sterilized. The finished liver disease apparatus 2000 makes the present invention easy to operate.

It should be further added that, in specific implementation, a pallet 104 is fixed horizontally in the middle of the right end face of the box body 10 ; the drive motor A40 is placed on the pallet 104 .

Therefore, the driving motor is placed stably, so that the fixing firmness is good.

It should be further added that, in the specific implementation, a power supply box 100 is fixed on the front side of the pallet 104;

The power box 100 is provided with a first switch key 1001 for controlling the operation of the drive motor A40, a second switch key 1002 for controlling the operation of the drive motor B70, and a second switch key 1002 for controlling the four The third switch key 1003 of the ultraviolet sterilization lamp 50 works synchronously.

More specifically, the power box 100 is provided with a rechargeable battery;

Wherein, the first switch key 1001 is electrically connected between the rechargeable battery and the drive motor A40; the second switch key 1002 is electrically connected between the rechargeable battery and the drive motor A40 Between B70; the third switch key 1003 is electrically connected between the rechargeable battery and the four ultraviolet sterilization lamps 50.

As a result, the invention is simple and convenient to operate.

And the above-mentioned control of the corresponding drive motor A40, drive motor B70 and ultraviolet sterilization lamp 50 by setting the power supply box 100 is an existing conventional mature technology, which can be directly purchased and installed in the market, so its specific circuit. Details, etc., are not explained here by examples.

Meanwhile, in the specific implementation, the present invention also includes four universal rotating wheels 110 with brakes;

Wherein, the four universal rotating wheels 110 are correspondingly fixed on the four corners of the bottom of the box body 10 .

Therefore, even if the fixing and moving of the present invention are facilitated, the fixing is firm and the moving is flexible and labor-saving.

Other embodiments, etc., are not illustrated one by one here.

To sum up, the overall structure of the present invention is simple, easy to implement, easy to operate, strong in practicability, strong in specificity, and low in manufacturing cost, so that the present invention must have good market promotion value, and the present invention will be very popular and can be effectively disseminated.

The above descriptions are only the preferred embodiments of the present invention, and do not limit the scope of the patent protection of the present invention. Indirect applications in other related technical fields are similarly included in the scope of patent protection of the present invention.

Claims (10)

1. A device for inactivating bacteria in blood samples of a liver disease appliance is characterized in that: comprising a box body, a liver disease appliance placing rack, a horizontal rotating rod in order to drive the up and down rotation of the liver disease appliance placing rack, in order to drive the horizontal rotating rod. Rod-rotating drive motor A and four ultraviolet sterilization lamps for irradiating and inactivating blood sample bacteria on liver disease instruments; The middle part of the left and right inner walls of the box body is relatively fixed with two rotating lugs; the horizontal rotating rod is rotatably fixed between the two rotating lugs; The rotating hole of the rotating ear seat; the driving motor A is fixed to the left on the right end face of the box body, and its left end rotating shaft extends from the rotating hole into the rotating ear seat on the right side and is connected with the horizontal rotating rod The right end is fixedly connected; the liver disease appliance placement rack is fixed in the middle of the horizontal rotating rod; two of the ultraviolet sterilization lamps are correspondingly fixed in the upper left and right upper parts of the box, and the other two ultraviolet The sterilization lamps are correspondingly fixed in the lower left part and the lower right part of the box body, and the light emitting directions of the four ultraviolet sterilization lamps are all toward the middle of the box body. 2 . The device for inactivating bacteria in blood samples for liver disease appliances according to claim 1 , further comprising a vertical rotating rod for driving the left and right rotation of the liver disease appliance placing rack and a vertical rotating rod for driving the vertical rotating rod to rotate. 3 . The drive motor B; The drive motor B is fixed upward on the middle of the horizontal rotating rod, and its upper end rotating shaft is fixedly connected to the middle of the bottom of the liver disease appliance placement rack. 3 . The device for inactivating bacteria in blood samples for liver disease appliances according to claim 2 , wherein the liver disease appliance placement rack comprises a bottom plate, a left clamping plate for holding the liver disease appliance, and a left clamping plate for holding the liver disease appliance 3 . the right clamping plate and the locking bolt used to lock the liver disease appliance; The left clamping plate and the right clamping plate are arranged opposite to each other and are both vertically fixed on the upper end surface of the bottom plate; the locking bolts pass through the right clamping plate from right to left. 4. The device for inactivating bacteria in blood samples of liver disease instruments according to claim 3, characterized in that: a left soft rubber pad is attached to the right end surface of the left clamping plate; a right soft rubber pad is attached to the left end of the locking bolt pad; When the locking bolt is screwed to the left, the liver disease instrument that needs to be inactivated by blood sample bacteria is clamped between the left soft rubber pad and the right soft rubber pad. 5. The device for inactivating bacteria in blood samples for liver disease appliances according to any one of claims 1 to 4, wherein the four ultraviolet sterilization lamps all comprise a lamp board and a plurality of lights evenly fixed on the lamp board to emit light surface lighting components; A layer of reflective film is respectively adhered to the non-lamp assembly area on the light-emitting surface of the lamp board of the four ultraviolet sterilization lamps, and the outer wall of the horizontal rotating rod is also wrapped with a layer of reflective film. 6. The device for inactivating bacteria in blood samples for liver disease appliances according to claim 5, further comprising a box cover; The front end surface of the box body is formed as an opening; the left edge of the box cover is rotatably connected with the left edge of the front end opening of the box body through a rotating shaft; A lock head matched with the lock cylinder is arranged on the middle and upper part of the right edge of the open front end of the box body. 7 . The device for inactivating bacteria in blood samples for liver disease instruments according to claim 5 , wherein a support table is fixed horizontally in the middle of the right end face of the box body; and the drive motor A is placed on the support table. 8 . 8. The device for inactivating bacteria in blood samples for liver disease appliances according to claim 7, characterized in that: a power supply box is fixed on the front side of the pallet; The power box is provided with a first switch key for controlling the operation of the driving motor A, a second switch key for controlling the operation of the driving motor B, and the synchronization of the four ultraviolet sterilization lamps. The third key to work. 9 . The device for inactivating bacteria in blood samples for liver disease appliances according to claim 8 , wherein a rechargeable battery is provided in the power supply box; 10 . The first switch is electrically connected between the rechargeable battery and the drive motor A; the second switch is electrically connected between the rechargeable battery and the drive motor B; The third switch is electrically connected between the rechargeable battery and the four ultraviolet sterilization lamps. 10. The device for inactivating bacteria in blood samples for liver disease appliances according to claim 5, further comprising four universal rotating wheels with brakes; The four universal rotating wheels are correspondingly fixed at the four corners of the bottom of the box.

Images