CN107913880B - Gastroscope belt cleaning device - Google Patents

Abstract

A gastroscope cleaning device is used for cleaning the gastroscope. It includes a casing, a conveying mechanism, a gastroscope holder and a cleaning mechanism arranged in the casing. The conveying mechanism is a chain transmission mechanism, a fixed cylinder is fixed on the conveying chain of the conveying mechanism, and a gastroscope for clamping the gastroscope is arranged on the fixed cylinder. Gripper; a cleaning mechanism is arranged above the conveying mechanism, and the cleaning mechanism includes a mounting plate, a lifting cylinder, a lifting plate, and a wheel frame arranged in sequence from top to bottom. The cleaning wheel is rotated and installed on the wheel frame, and the cleaning wheel A flexible cleaning pad is arranged on the outer wall, and a cleaning drive unit that drives the cleaning wheel to rotate is arranged on the wheel frame; a support block is arranged just below the cleaning wheel, and the support block moves up and down under the drive of the lifting cylinder; There is a nozzle, the nozzle is connected with the water outlet of the water pump through a water pipe, and the water inlet pipe of the water pump is connected with the water tank. The invention can efficiently realize the cleaning of the gastroscope.

Description

A gastroscope cleaning device

technical field

The invention relates to the technical field of postoperative cleaning of medical gastroscopes, in particular to a gastroscope cleaning device.

Background technique

Gastroscopy is a medical examination method and also refers to the instruments used for this examination. Gastroscopy can directly observe the real situation of the inspected part, and can further confirm the diagnosis through pathological biopsy and cytological examination of suspicious lesions. It is the first choice for upper gastrointestinal lesions. It extends into the stomach with a thin, flexible tube, allowing doctors to directly observe lesions in the esophagus, stomach and duodenum, especially for tiny lesions. After a gastroscopy or surgery with a gastroscope, the gastroscope needs to be cleaned for the next use. The existing cleaning methods are all manual cleaning, which undoubtedly increases the labor intensity of medical workers.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a gastroscope cleaning device for cleaning the gastroscope.

The technical solution adopted by the present invention to solve the technical problem is: a gastroscope cleaning device, which is characterized in that it includes a casing, a conveying mechanism, a gastroscope holder and a cleaning mechanism arranged in the casing, and the conveying mechanism includes a conveying chain a wheel, a conveying chain arranged between the conveying sprockets, a conveying motor that drives the conveying sprocket to rotate, and a fixed cylinder fixed on the conveying sprocket, on which is provided a gastroscope holder for clamping the gastroscope;

A cleaning mechanism is provided above the conveying mechanism, and the cleaning mechanism includes a mounting plate fixed on the casing, a lifting cylinder fixed on the mounting plate and placed vertically, a lifting plate fixed on the piston rod of the lifting cylinder, and a set of The wheel frame under the lifting plate, the extension rod arranged between the lifting plate and the wheel frame, the cleaning wheel installed on the wheel frame in rotation, the flexible cleaning pad arranged on the circular outer wall of the cleaning wheel, the driving wheel rotating Clean the drive unit;

A support block is provided just below the cleaning wheel, a tube groove for placing a flexible gastroscope tube is provided on the support block, a bracket is arranged in the shell, and a lifting cylinder is arranged between the bracket and the support block;

A spray head is arranged in the shell, the spray head is connected with the water outlet end of the water pump through a water pipe, and the water inlet pipe of the water pump is connected with the water tank.

Further, the conveying sprockets are two pairs arranged in the front and rear, a conveying chain is arranged between the paired two conveying sprockets, and the conveying sprockets on the front side and the rear side are fixedly connected by a connecting shaft, and the two conveying sprockets are fixedly connected. A support rod is fixed between the conveyor chains, and the fixing cylinder is fixed on the support rod.

Further, the gastroscope holder is a cylindrical hollow structure, and a fixed holding plate and a movable holding plate are arranged in the inner cavity of the gastroscope holder, between the fixed holding plate and the inner wall of the gastroscope holder. A fixed radial rod is provided, a movable radial rod is fixed on the movable clamping plate, a guide tube is fixed on the inner wall of the gastroscope holder, the movable radial rod is slidably connected with the guide tube, and rotates on the gastroscope holder A screw rod is installed, the screw rod is threadedly connected with the movable radial rod, and the fixed clamping plate and the movable clamping plate are semi-circular arc structures.

Further, the right end of the gastroscope holder is open, the left end face of the gastroscope holder is provided with a first round hole, the left end face of the gastroscope holder is fixed with a connecting rod, and the inside of the fixed cylinder is fixed with a first round hole. The bearing, the connecting rod is fixedly connected with the inner ring of the first bearing, the rotating body is fixed on the connecting rod, the rotating body is a cylindrical hollow structure with an open left end face, and a second round hole is arranged on the right end face of the rotating body, The rotating body and the gastroscope holder are located on the left and right sides of the fixed cylinder.

Further, a rotating mechanism for driving the rotating body to rotate is provided on the bracket.

Further, the rotating mechanism includes a pair of driving rollers located above the support, and a synchronous driving unit that drives the two driving rollers to rotate synchronously and turn in the same direction; the two ends of the driving rollers are respectively provided with conical surfaces.

Further, the synchronous drive unit includes a synchronous pulley arranged coaxially with the driving roller, a synchronous belt arranged between two synchronous pulleys, a driven pulley arranged on one of the driving rollers, a A rotating motor, a driving pulley fixed at the output end of the rotating motor, and a belt arranged between the driving pulley and the driven pulley.

Further, the cleaning drive unit includes a fixed plate fixed on the wheel frame, a cleaning motor fixed on the fixed plate, a driving gear fixed on the output end of the cleaning motor, and a driven gear that meshes with the driving gear and is coaxial with the cleaning wheel. gear.

Further, a lifting block is arranged at the bottom of the lifting plate, the lower part of the extension rod is fixedly connected with the wheel frame, the upper part of the extension rod extends into the inner cavity of the lifting block and is slidably connected with the lifting block, between the wheel frame and the lifting block. There are springs in the room.

Further, a water extrusion unit is provided on the wheel frame, and the moisture extrusion unit includes a fixed pressure plate fixedly arranged between the cleaning wheel and one side of the wheel frame, and a movable platen movably arranged between the cleaning wheel and the other side of the wheel frame. The pressing plate, the moving plate fixedly connected with the movable pressing plate, the compression cylinder which drives the moving plate to move relative to the fixed pressing plate, and the compression cylinder is fixed on the wheel frame.

The beneficial effects of the present invention are: a gastroscope cleaning device provided by the present invention has at least the following advantages:

(1), the clamping of the gastroscope can be realized, and the delivery of the gastroscope can be realized, and then the flexible gastroscope tube in the entire length can be cleaned by the cleaning mechanism;

(2) During the delivery process of the gastroscope, the gastroscope can be rotated, so that the entire circumference of the gastroscope can be cleaned by the cleaning mechanism without dead ends.

(3), realize the cleaning of the gastroscope through the cleaning wheel that rotates rapidly and is in contact with the gastroscope, and the cleaning pad on the cleaning wheel is always in contact with the gastroscope and has a certain pressure, thereby ensuring the cleaning effect;

(4) The cleaning pad for wear parts can be replaced to ensure the cleaning quality and avoid cross infection.

Description of drawings

Fig. 1 is the structural representation of the present invention (remove the outer shell);

Fig. 2 is the front schematic view of Fig. 1;

Fig. 3 is the top view schematic diagram of Fig. 1;

Fig. 4 is the right side schematic diagram of Fig. 1;

5 is a three-dimensional schematic diagram of a conveying mechanism;

Fig. 6 is the front schematic view of Fig. 5;

Fig. 7 is the top view schematic diagram of Fig. 5;

8 is a three-dimensional schematic diagram of a cleaning mechanism;

Fig. 9 is the front schematic view of Fig. 8;

Figure 10 is a schematic diagram of another form of assembly of the wheel frame and the lifting plate;

Figure 11 is a schematic structural diagram of a gastroscope holder;

Figure 12 is a partial view of the direction A in Figure 11;

Figure 13 is a schematic side view of the cleaning wheel;

Figure 14 is a schematic diagram of the first bearing;

Figure 15 is a schematic diagram of the second bearing;

Figure 16 is a schematic diagram of the movable pressure plate approaching the fixed pressure plate;

17 is a schematic diagram of the action state of the gastroscope when the gastroscope is transported;

Fig. 18 is the schematic diagram when the gastroscope holder is rotated;

In the figure: 1 conveying mechanism, 11 conveying sprocket, 12 connecting shaft, 13 conveying chain, 14 supporting rod, 15 fixing cylinder, 16 first bearing, 161 inner ring, 162 first through hole, 17 gastroscope holder, 171 Fixed radial rod, 172 fixed clamping plate, 173 movable clamping plate, 174 movable radial rod, 175 guide tube, 176 connecting rod, 177 first round hole, 18 screw, 181 handle, 19 rotating body, 191 second Round hole, 192 rounded corners, 2 brackets, 21 lugs, 22 drive rollers, 221 conical surface, 222 timing pulleys, 223 timing belts, 224 driven pulleys, 225 belts, 226 driving pulleys, 227 rotating motors, 23 Support block, 231 pipe groove, 24 lift cylinder, 25 second bearing, 251 second through hole, 3 cleaning mechanism, 31 installation plate, 311 guide rod, 312 stopper, 32 lift cylinder, 33 lift plate, 34 lift block , 35 wheel frame, 351 extension rod, 352 bearing mounting hole, 36 spring, 37 cleaning wheel, 371 cleaning pad, 372 ring groove, 373 retaining ring, 38 fixed pressure plate, 381 first cross bar, 39 movable pressure plate, 391 second Cross bar, 392 moving plate, 393 compression cylinder, 394 cylinder mounting rod, 4 fixed plate, 41 cleaning motor, 42 driving gear, 43 driven gear, 5 nozzle, 51 water drop, 52 soft gastroscope tube.

Detailed ways

As shown in FIGS. 1 to 18 , the present invention mainly includes a casing, a conveying mechanism 1 , a gastroscope holder 17 , a rotating mechanism, a cleaning mechanism and a spray head 5 . The present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figures 1 to 4, the conveying mechanism 1, the cleaning mechanism 3 and the spray head 5 of the present invention are all arranged inside the casing. The function of the casing is to support the entire cleaning device and to install various components. The shape and structure of the casing It is not an innovative point of the present invention. Any casing structure that can be used to support the whole device and install other components can be used as the casing in the patent of the present invention, and the general technical personnel with mechanical design ability can design and process the casing.

As shown in FIGS. 1 to 7 , the conveying mechanism 1 mainly includes two pairs of conveying sprockets 11 arranged in the front and rear, a conveying chain 13 connecting the two conveying sprockets arranged in pairs, and a connecting shaft 12. Both ends of the connecting shaft are connected to the conveying sprockets. The sprockets are fixedly connected, the setting of the connecting shaft connects the two pairs of conveying sprockets to realize the synchronous action of the two pairs of conveying sprockets, and the connecting shaft is rotatably mounted on the casing. There are two connecting shafts, and one of the connecting shafts is fixedly connected with the output end of the conveying motor, and then the conveying sprocket is driven by the conveying motor to rotate, thereby driving the movement of the conveying chain. A support rod 14 is arranged between the two conveyor chains, one end of the support rod is fixedly connected with the conveyor chain on the rear side, and the other end of the support rod is fixedly connected with the conveyor chain on the front side. A fixed cylinder 15 is fixed on the support rod. The fixed cylinder has a cylindrical structure. As shown in FIG. 11 , a pair of first bearings 16 arranged on the left and right are fixed on the inner side of the fixed cylinder. As shown in FIG. 14 , in the first bearing The inner ring 161 is provided with four first through holes 162 evenly arranged along the same circumference.

A gastroscope holder 17 is arranged on the fixed cylinder. As shown in FIG. 11 , the gastroscope holder 17 is a cylindrical hollow structure, and the right end of the gastroscope holder is open. The first circular hole 177 is provided with a semi-circular arc-shaped fixed clamping plate 172 and a semi-circular arc-shaped movable clamping plate 173 inside the gastroscope holder, and a fixed clamping plate is provided between the fixed clamping plate and the inner wall of the gastroscope holder The radial rod 171, as shown in FIG. 12, has a movable radial rod 174 fixed on the movable clamping plate, a guide tube 175 is fixed on the inner wall of the gastroscope holder, and one end of the movable radial rod is slidably arranged on the guide tube inside. The movable radial rod is a hollow structure, the inner wall of the movable radial rod is provided with an internal thread, a screw 18 is rotated and installed on the side wall of the gastroscope holder, and one end of the screw placed inside the gastroscope holder is connected to the movable radial rod. A handle 181 is fixed at one end of the screw placed on the outside of the gastroscope holder, the rotating handle can drive the rotation of the screw, and when the screw rotates, it can drive the movable radial rod to move along the guide tube, thereby realizing the movable clamping The gastroscope can be clamped after the plate and the fixed clamping plate are close to or away from each other, and the movable clamping plate contacts the fixed clamping plate and forms a complete circle. In order to achieve firm clamping and avoid damage to the gastroscope, rubber pads are provided on the inner walls of the movable clamping plate and the fixed clamping plate.

Four connecting rods 176 are fixed on the left end of the gastroscope holder, and the connecting rods pass through the first through holes on the inner ring of the first bearing to realize the fixed connection between the gastroscope holder and the inner ring of the first bearing. The left end of the rod is fixed with a rotating body 19, so that the rotating body and the gastroscope holder are located on the left and right sides of the fixed cylinder. Both the rotating body and the connecting rod are part of the gastroscope holder, as shown in Figure 5 and Figure 11, the rotating body is a cylindrical hollow structure and the left end of the rotating body is open, and the center of the right end of the rotating body is provided with a second round hole 191. The first circular hole, the inner ring of the first bearing, and the second circular hole constitute a channel through which the gastroscope is accommodated.

In this way, the gastroscope body is clamped by the gastroscope holder, and when the conveying motor works, the gastroscope holder and the gastroscope can be driven to move.

In order to drive the rotation of the gastroscope during the moving process, as shown in Fig. 5 to Fig. 7 , a bracket 2 is provided below the fixing cylinder, and the bracket can be fixed on the casing. Two pairs of lugs 21 are fixed on the top of the bracket 2, a driving roller 22 is arranged between the pair of two lugs, and conical surfaces 221 are respectively provided at both ends of the driving roller. Both ends are tapered. A synchronous pulley 222 is respectively fixed on each driving roller, and a synchronous belt 223 is arranged between the two synchronous pulleys. The arrangement of the synchronous belt and the synchronous pulley can realize the synchronous action of the two driving rollers. A driven pulley 224 is fixed on one of the driving rollers, a rotating motor 227 is fixed on the bracket, a driving pulley 226 is fixed on the output end of the rotating motor, and a belt is arranged between the driving pulley and the driven pulley 225. The rotating motor, the driving pulley, the driven pulley, the synchronous pulley and the synchronous belt constitute a synchronous driving unit that drives the two driving rollers to rotate synchronously. The synchronous drive unit and the drive roller constitute a rotating mechanism that drives the rotating body to rotate. The left and right ends of the rotating body are provided with rounded corners 192, and the setting of the rounded corners and the conical surface can facilitate the moving of the rotating body to the driving roller. After the rotating body moves to the driving roller, as shown in Figure 18, when the two driving rollers rotate clockwise, the friction force between the rotating body and the driving roller can drive the rotating body to rotate counterclockwise.

In order to realize the support to the soft gastroscope tube on the gastroscope, as shown in Figure 5, a support block 23 is provided between the two drive rollers, and a lift cylinder 24 is provided between the support block and the bracket, and the setting of the lift cylinder can drive the support. As the block moves up and down, a semicircular tube groove 231 is provided on the top of the support block, and the flexible gastroscope tube is placed in the tube groove. In order to prevent the support block from scratching the flexible gastroscope tube, rounded corners are provided on the tube groove. When the part of the soft gastroscope tube is about to come into contact with the support block, the rotating body moves to the driving roller. At this time, the driving roller drives the rotating body to rotate, thereby realizing the rotation of the gastroscope. Under the action of the cleaning wheel, the entire soft gastroscope tube can be cleaned Cleaning of circular outer walls.

A cleaning mechanism 3 is provided above the conveying mechanism. As shown in Figures 1 to 4, Figure 8 and Figure 9, the cleaning mechanism includes a mounting plate 31, a pulling cylinder 32 fixed at the bottom of the installation plate, and a piston of the pulling cylinder fixed at the bottom of the installation plate. The lift plate 33 on the rod, the guide rod 311 fixed on the bottom of the mounting plate and slidably connected with the lift plate, the stopper 312 fixed on the bottom of the guide rod and located under the lift plate, the lift block 34 fixed at the bottom of the lift plate, located at the bottom of the lift plate. The "inverted U-shaped" wheel frame 35 directly under the lifting block, the extension rod 351 arranged between the wheel frame and the lifting block, the cleaning wheel 37 rotatably installed on the wheel frame, the cleaning wheel detachably installed on the cleaning wheel The pad 371 and the cleaning drive unit that drives the cleaning wheel to rotate, the mounting plate 31 is fixed on the casing, and the lifting plate is provided with a small hole for sliding connection with the guide rod. As shown in Figure 13, the circular outer wall of the cleaning wheel is provided with a hole. There is a ring-shaped blocking ring 373, the cleaning pad is a circular structure, and the inner wall of the cleaning pad is provided with a mounting groove that cooperates with the blocking ring, and the blocking ring is placed in the mounting groove to realize the relative fixation of the cleaning wheel and the cleaning pad. In addition, the detachable installation method of the cleaning pad can facilitate the replacement of the cleaning pad that is severely worn and cannot be used.

A ring groove 372 is provided on the circular outer wall of the cleaning pad, and the function of the ring groove is to accommodate the soft gastroscope tube and contact and rub with the soft gastroscope tube to scrub the soft gastroscope tube.

The cleaning drive unit includes a fixed plate 4 fixed on the wheel frame, a cleaning motor 41 fixed on the fixed plate, a driving gear 42 fixed on the output end of the cleaning motor, and a driven gear 43 arranged coaxially with the cleaning wheel and meshing with the driving gear .

When the gastroscope needs to be cleaned, the gastroscope body is clamped by the gastroscope holder, and the gastroscope body is passed through the channel on the gastroscope holder. At this time, the flexible gastroscope tube is placed outside the gastroscope holder; The lifting cylinder drives the support block to move up, so that the support block supports the soft gastroscope tube, and the soft gastroscope tube is placed in the tube groove; then drive the pulling cylinder to move the cleaning wheel down until the cleaning pad and the soft gastroscope Tube contact; then drive the conveying motor to move the flexible gastroscope tube from left to right, and at the same time drive the rapid rotation of the cleaning wheel to scrub the soft gastroscope tube; in addition, under the action of the synchronous drive unit, the gastroscope can be driven The rotation of the holder can drive the rotation of the gastroscope when the gastroscope holder is rotated. As shown in Figure 17, the flexible gastroscope tube 52 moves from left to right and rotates while adding the high-speed rotation of the cleaning wheel. Scrub the entire outer wall of the soft gastroscope tube, so as to wipe off the mucus on the outer wall of the soft gastroscope tube.

In the manner in which the gastroscope holder and the fixed cylinder are installed in relative rotation, the entire outer wall of the flexible gastroscope tube can be cleaned in one delivery process. Of course, the gastroscope holder can also be fixedly connected with the fixed tube. At this time, if you want to clean the entire outer wall of the flexible gastroscope tube, you only need to transport and clean the flexible gastroscope tube multiple times, and before each delivery, Rotate the flexible gastroscope tube at a certain angle so that the uncleaned side of the flexible gastroscope tube faces upwards.

The cleaning pad is made of sponge, which can ensure the close contact between the cleaning pad and the soft gastroscope tube, and at the same time avoid the damage to the soft gastroscope tube and the movement of the soft gastroscope tube caused by excessive pressure between the cleaning pad and the soft gastroscope tube. interference.

Before scrubbing the soft gastroscope tube, the soft gastroscope tube can be flushed with water to flush the part of the mucus adhered to the soft gastroscope tube in advance. Therefore, a nozzle 5 is provided in the casing, the nozzle is connected to the water outlet of the water pump through a water pipe, and the water inlet end of the water pump is connected to the water tank. Irrigation of the gastroscope tube.

In order to realize the extrusion of the water on the cleaning pad, a water extrusion unit is provided on the wheel frame, as shown in Figure 8, Figure 9 and Figure 16, the water extrusion unit includes a movable platen 39 located on the left side of the cleaning wheel, The fixed pressure plate 38 on the right side of the wheel, the first cross bar 381 arranged between the fixed pressure plate and the wheel frame, the compression cylinder 393 fixed to the wheel frame through the cylinder mounting rod 394, the moving plate 392 fixed on the piston rod of the compression cylinder and a second cross bar 391 arranged between the moving plate and the movable pressing plate. As shown in FIG. 10 , a bearing installation hole 352 is provided at the lower part of the wheel frame, and a second bearing 25 is fixed in the bearing installation hole, and the cleaning wheel is rotatably connected to the wheel frame through the second bearing. As shown in FIG. 15 , a second through hole 251 is fixed on the outer ring of the cleaning wheel, and the second transverse rod passes through the second through hole. For easy installation, the cylinder mounting rod can be fixed on the outer ring of the second bearing after passing through the moving plate. Of course, the cylinder mounting rod can also be fixed on the wheel carrier.

As shown in Figure 16, when the compression cylinder moves the movable platen and the fixed platen close, the water 51 on the cleaning pad can be squeezed out. When the compression cylinder acts in reverse, the movable platen and the fixed platen are separated, and the cleaning pad returns to its original state.

In order to ensure sufficient friction between the cleaning pad and the soft gastroscope tube, as shown in Figure 10, the upper part of the extension rod extends into the inner cavity of the lifting block and is slidably connected with the lifting block, between the wheel frame and the lifting block. A spring 36 is provided, under the action of the spring, the cleaning pad and the soft gastroscope tube are pressed tightly.

Claims (10)

1. A gastroscope cleaning device is characterized by comprising a shell, a conveying mechanism, a gastroscope holder and a cleaning mechanism, wherein the conveying mechanism, the gastroscope holder and the cleaning mechanism are arranged in the shell;

a cleaning mechanism is arranged above the conveying mechanism, and comprises a mounting plate fixed on the shell, a lifting cylinder fixed on the mounting plate and vertically arranged, a lifting plate fixed on a piston rod of the lifting cylinder, a wheel carrier arranged below the lifting plate, an extension rod arranged between the lifting plate and the wheel carrier, a cleaning wheel rotatably arranged on the wheel carrier, a flexible cleaning pad arranged on the circular outer wall of the cleaning wheel, and a cleaning driving unit for driving the cleaning wheel to rotate;

a supporting block is arranged right below the cleaning wheel, a pipe groove for placing a soft gastroscope tube is arranged on the supporting block, a bracket is arranged in the shell, and a lifting cylinder is arranged between the bracket and the supporting block;

a spray head is arranged in the shell, the spray head is connected with the water outlet end of the water pump through a water pipe, and the water inlet pipe of the water pump is connected with the water tank.

2. The gastroscope cleaning apparatus according to claim 1, wherein the conveying chain wheels are two pairs arranged in front and back, a conveying chain is arranged between the two conveying chain wheels in the pair, the conveying chain wheels on the front side and the rear side are fixedly connected through a connecting shaft, a supporting rod is fixed between the two conveying chains, and the fixing cylinder is fixed on the supporting rod.

3. The gastroscope cleaning device according to claim 1, characterized in that the gastroscope holder is a cylindrical hollow structure, a fixed holding plate and a movable holding plate are arranged in the inner cavity of the gastroscope holder, a fixed radial rod is arranged between the fixed holding plate and the inner wall of the gastroscope holder, a movable radial rod is fixed on the movable holding plate, a guide tube is fixed on the inner wall of the gastroscope holder, the movable radial rod is connected with the guide tube in a sliding manner, a screw rod is rotatably arranged on the gastroscope holder and is in threaded connection with the movable radial rod, and the fixed holding plate and the movable holding plate are both in a semi-circular arc structure.

4. The gastroscope cleaning device according to claim 3, characterized in that the right end of the gastroscope holder is open, a first round hole is arranged on the left end face of the gastroscope holder, a connecting rod is fixed on the left end face of the gastroscope holder, a first bearing is fixed on the inner side of the fixed cylinder, the connecting rod is fixedly connected with the inner ring of the first bearing, a rotating body is fixed on the connecting rod, the rotating body is a cylindrical hollow structure with the open left end face, a second round hole is arranged on the right end face of the rotating body, and the rotating body and the gastroscope holder are respectively arranged on the left side and the right side of the fixed cylinder.

5. The gastroscopic cleaning apparatus according to claim 4 in which a rotation mechanism is provided on the holder to drive the rotation of the rotator.

6. The gastroscopic cleaning apparatus according to claim 5 in which the rotation mechanism includes a pair of drive rollers located above the stent, a synchronous drive unit driving the drive rollers to rotate synchronously and in the same direction; the two ends of the driving roller are respectively provided with a conical surface.

7. The gastroscopic cleaning apparatus according to claim 6, wherein said synchronous drive unit includes a synchronous pulley coaxially disposed with the drive roller, a synchronous belt disposed between the two synchronous pulleys, a driven pulley disposed on one of the drive rollers, a rotary motor secured to the holder, a drive pulley secured to an output end of the rotary motor, and a belt disposed between the drive pulley and the driven pulley.

8. The gastroscope cleaning apparatus according to claim 1, wherein the cleaning driving unit comprises a fixing plate fixed on the wheel carrier, a cleaning motor fixed on the fixing plate, a driving gear fixed on the output end of the cleaning motor, and a driven gear engaged with the driving gear and coaxially arranged with the cleaning wheel.

9. The gastroscope washing apparatus according to claim 1, wherein the elevating plate has an elevating block at its bottom, the extension rod has its lower part fixed to the wheel carrier and its upper part extending into the inner cavity of the elevating block and connected to the elevating block in sliding mode, and a spring is provided between the wheel carrier and the elevating block.

10. The gastroscope washing device according to claim 1, wherein the wheel carrier is provided with a moisture squeezing unit, the moisture squeezing unit comprises a fixed pressing plate fixedly arranged between the washing wheel and one side of the wheel carrier, a movable pressing plate movably arranged between the washing wheel and the other side of the wheel carrier, a moving plate fixedly connected with the movable pressing plate, and a compression cylinder driving the moving plate to move relative to the fixed pressing plate, and the compression cylinder is fixed on the wheel carrier.

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