Disinfectant spraying equipment

Abstract

The invention relates to the technical field of disinfection equipment, in particular to disinfectant spraying equipment which comprises a cart and a disinfection box placed on the cart, a water pump is placed in the bottom of the disinfection box, a liquid injection port and a liquid outlet are formed in the top face of the disinfection box, and a liquid spraying frame set is arranged on the front side of the cart. A transmission set used for driving the liquid spraying frame set to move forwards to spray liquid is arranged on the bottom face of the trolley. A liquid spraying frame set capable of spraying disinfectant in an expanded range and a transmission set for driving the liquid spraying frame set to move along a limited aisle of a ward are borne by the arranged cart; the length of the extension pipe is stretched according to the ward space so as to enlarge the liquid spraying range; a straight and firm double-row transmission chain is formed to push the movable pipe to support the whole liquid spraying pipe to move forwards; furthermore, a disinfectant is sprayed to cover the whole space of the ward, so that the effect of comprehensively and quickly disinfecting is achieved, and the working intensity of medical staff is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of disinfection equipment, in particular to a disinfectant spraying device. Background Art

[0002] Improving the quality of environmental cleaning in medical institutions can effectively reduce the rate of hospital infection, especially focusing on the cleaning and disinfection of high-frequency contact surfaces in infection wards, which can significantly reduce microbial residues. Therefore, how to do a good job in environmental cleaning and disinfection management to prevent and reduce the rate of hospital infection has become an urgent problem to be solved. However, medical staff often carry or push disinfection boxes for handheld spray disinfection, which has incomplete spray coverage, and the large number of wards can easily consume the physical strength of medical staff and increase the intensity of work for the day. Summary of the invention

[0003] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a disinfectant spraying device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides a disinfectant spraying device, comprising a cart and a disinfection box placed thereon, a water pump is placed in the bottom of the disinfection box, a liquid injection port and a liquid outlet are arranged on the top surface of the disinfection box, a liquid spraying frame group is arranged on the front side of the cart, and a transmission group for driving the liquid spraying frame group to move forward to spray liquid is arranged on the bottom surface of the cart; The liquid spraying frame assembly includes a moving tube connected to the cart, a liquid passing tube that is telescopically inserted in the center hole of the moving tube, and a pair of liquid spraying tubes that are folded and retracted and turned up and flattened on both sides of the liquid passing tube; a liquid infusion tube that is sleeved with the liquid outlet of the disinfection box is sleeved on the bottom rear side of the liquid passing tube, and a tube placement box for storing the liquid infusion tube is arranged in front of the disinfection box; The transmission group includes two rolls of transmission chains in a coiled state, a chain winding disk for winding the transmission chain, a servo motor for driving the chain winding disk to rotate or to retract or release the transmission chain, and a chain supporting disk; the chain supporting disk is a pair of open ring structures and is fixedly connected to the bottom surface of the cart, and the two chain winding disks are correspondingly clamped at two annular top ports of the chain supporting disk; the transmission chain is composed of a plurality of chain blocks hinged end to end, the front ends of the two rolls of the transmission chains are in a staggered state and are rotatably connected with connecting blocks, the chain blocks are in a rectangular plate-shaped structure and are respectively provided with clamping blocks and clamping grooves at symmetrical positions on their sides, and the clamping blocks are located at one-fourth of the points on one side of the chain blocks, and the clamping grooves are located at one-fourth of the points on the other side of the chain blocks; the two servo motors drive the two rolls of transmission chains to pass through the front opening of the chain supporting disks, and the two relative and staggered chain blocks are in a fitted state, and the clamping blocks are correspondingly clamped with the clamping grooves, so that the two rolls of transmission chains extend forward in a straight state to push the moving tube forward to spray liquid for disinfection.

[0005] As a further improvement of the technical solution, the bottom end of the movable tube is fixedly connected with a clamping frame clamped with the bottom plate of the trolley, and the bottom surface of the clamping frame is embedded with a clamping sleeve clamped with the connecting block and the chain block.

[0006] As a further improvement of the present technical solution, the top port of the liquid passing pipe is sleeved with a three-way pipe, and the two side ends of the three-way pipe are sleeved with two liquid spraying pipes, the outer end of the liquid spraying pipe is sleeved with an extension pipe, and the bottom surfaces of the liquid spraying pipe and the extension pipe are provided with a plurality of liquid spraying ports.

[0007] As a further improvement of the technical solution, fixing rings are symmetrically arranged on both sides of the top of the liquid passage pipe, and a connecting ring is arranged on the bottom surface of one end of the liquid spraying pipe, and the fixing ring and the connecting ring are rotatably connected by a pin.

[0008] As a further improvement of the present technical solution, a support rod group is slidably connected between the liquid passing pipe and the two liquid spraying pipes, and the support rod group includes a sliding sleeve slidably connected to the liquid passing pipe, a support sleeve slidably connected to the liquid spraying pipe, and two pairs of support rods rotatably connected between the sliding sleeve and the two support sleeves.

[0009] As a further improvement of the technical solution, a bolt is threadedly connected to the front side wall of the sliding sleeve, and a bolt is threadedly connected to the top front side wall of the moving tube.

[0010] As a further improvement of the technical solution, a groove is provided in the middle of one vertical side end of the chain block, and a cylindrical block is protruding from the middle of the other vertical side end of the chain block. Two adjacent chain blocks are clamped in the groove through the cylindrical block and are rotatably connected through a pin.

[0011] As a further improvement of the technical solution, a sleeve is provided through the center of the chain disk from top to bottom, a pulley is provided on the upper end of the sleeve, the servo motor is mounted on the bottom plate of the cart and its output shaft passes through the bottom of the bottom plate and is provided with a transmission belt, and the transmission belt is sleeved on the pulley and is in a taut state.

[0012] As a further improvement of the technical solution, the opening of the chain support plate is connected to a pressure roller through a pin to rotate toward the front end, and a sleeve rod which is sleeved with a sleeve is embedded in the center of the open ring of the chain support plate. The top ends of the two sleeve rods are connected with straight rods, and the straight rods are fixedly connected to the bottom plate of the cart.

[0013] As a further improvement of the present technical solution, the inner width of the tube box is matched with the outer diameter of the infusion tube, a tube outlet is provided in the middle of the top end of the tube box, a box cover is clamped on the top end of the tube box, one end of the infusion tube passes through the box cover and is sleeved with the liquid outlet of the disinfection box, one end of the infusion tube extends along the vertical side end wall of the tube box to its bottom, and is coiled in an S shape to the top end of the tube box and passes through the tube outlet.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The disinfectant spraying equipment carries a spray frame group that can spray disinfectant in a deployable range and a transmission group that drives the spray frame group to move along the limited corridor of the ward through a trolley; the length of the extension pipe is stretched according to the space of the ward to expand the spray range; the moving pipe is pushed forward by forming a straight and strong double-row transmission chain to support the spray pipe as a whole; and then the disinfectant is sprayed to cover the entire space of the ward, achieving the effect of comprehensive and rapid disinfection, and reducing the workload of medical staff.

[0015] 2. The disinfectant spraying device is configured such that the inner width of the tube box is adapted to the outer diameter of the infusion tube, and one end of the infusion tube is extended along the vertical side end wall of the tube box to the bottom thereof, and is coiled in an S shape to the top of the tube box, and the other end thereof passes through the tube outlet, so that the infusion tube can be pulled out smoothly, and can be automatically bent and stored along the length of the tube box when retracted, thereby cooperating with the movement of the spray frame assembly to spray liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art, under the guidance of the present invention, select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0017] Figure 1 It is a schematic diagram of the overall assembly structure of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the overall unfolded state of the present invention.

[0019] Figure 3 It is a front view of the overall folded state of the present invention.

[0020] Figure 4 This is a disassembled view of the movable pipe and the liquid-passing pipe assembly of the present invention.

[0021] Figure 5 The figure is a disassembled view of the liquid spray pipe and the support rod assembly of the present invention.

[0022] Figure 6 This is a disassembled diagram of the catheter placement box of the present invention.

[0023] Figure 7 It is a schematic diagram of the assembly structure of the transmission group of the present invention.

[0024] Figure 8 It is a disassembled view of the chain winding plate and the chain supporting plate of the present invention.

[0025] Fig. 9 It is a disassembled diagram of the transmission chain assembly of the present invention.

[0026] Fig.10 It is a schematic diagram of the structure of the chain disk of the present invention from a bottom-up perspective.

[0027] The meaning of each number in the figure is: 100, trolley; 110, disinfection box; 200, spray frame assembly; 210, mobile pipe; 211, clamp frame; 212, jacket; 220, liquid pipe; 221, three-way pipe; 222, fixed ring; 230, spray pipe; 231, spray port; 232, extension pipe; 233, connecting ring; 240, support rod assembly; 241, support rod; 242, sliding sleeve; 243, support sleeve; 250, infusion tube; 260, Tube placement box; 261, tube outlet; 262, box cover; 300, transmission group; 310, transmission chain; 311, chain block; 3111, clamping block; 3112, clamping slot; 3113, cylindrical block; 3114, groove; 312, connecting block; 320, chain plate; 321, sleeve; 322, pulley; 330, servo motor; 331, transmission belt; 340, chain support plate; 341, pressure roller; 342, sleeve rod. DETAILED DESCRIPTION

[0028] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, the technical personnel's conception is based on any possible variation of the present invention, which should be regarded as belonging to the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which means direct connection and indirect connection through an intermediate medium.

[0029] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0030] See also Figure 1-Figure 10As shown, the present invention provides a disinfectant spraying device, including a trolley 100 and a disinfection box 110 placed thereon, a water pump is placed in the bottom of the disinfection box 110, a liquid injection port and a liquid outlet are provided on the top surface of the disinfection box 110, a liquid spraying frame group 200 is provided on the front side of the trolley 100, and a transmission group 300 for driving the liquid spraying frame group 200 to move forward to spray liquid is provided on the bottom surface of the trolley 100; the trolley 100 is pushed to the wall of the ward and the bedside passage, the liquid spraying frame group 200 is unfolded and raised, and then the liquid spraying frame group 200 is driven by the transmission group 300 to move along the aisle, and the spraying disinfectant covers the entire space of the ward, so as to achieve the effect of comprehensive and rapid disinfection.

[0031] Specifically, the liquid spraying frame assembly 200 includes a moving tube 210 connected to the cart 100, a liquid passing tube 220 that is telescopically inserted in the center hole of the moving tube 210, and a pair of liquid spraying tubes 230 that are folded and collapsed and turned up and flattened on both sides of the liquid passing tube 220; the folding of the pair of liquid spraying tubes 230 is convenient for storage and pushing, and the flattening of the pair of liquid spraying tubes 230 expands the liquid spraying range, so that the cart 100 can be moved in the limited passage in the ward, and the beds and the ground above can be fully covered and disinfected; The bottom rear side of the liquid passage 220 is provided with an infusion tube 250 which is sleeved with the liquid outlet of the disinfection box 110. The infusion tube 250 is a silicone tube with a thickness of 1.2 mm and has better pressure resistance and bending resistance. A tube placement box 260 for storing the infusion tube 250 is provided in front of the disinfection box 110. One end of the infusion tube 250 passes through the liquid outlet and is sleeved with the water outlet end of the water pump to pump out the disinfectant. The inner width of the tube box 260 is matched with the outer diameter of the infusion tube 250, so that the infusion tube 250 can be automatically bent and stored along the length of the tube box 260; a tube outlet 261 is opened in the middle of the top of the tube box 260, and a box cover 262 is clamped on the top of the tube box 260. One end of the infusion tube 250 passes through the box cover 262 and is sleeved with the liquid outlet of the disinfection box 110. One end of the infusion tube 250 extends along the vertical side end wall of the tube box 260 to the bottom thereof, and is coiled in an S shape to the top of the tube box 260, and passes through the tube outlet 261; The bottom end of the mobile tube 210 is fixedly connected to a clamping frame 211 that is clamped to the bottom plate of the cart 100, so that the mobile tube 210 can be stored in the range directly above the cart 100. Universal wheels are installed at the bottom corners of the clamping frame 211 so that it can move synchronously with the cart 100.

[0032] Furthermore, a tee pipe 221 is sleeved on the top end of the liquid pipe 220, and the two sides of the tee pipe 221 are sleeved with two liquid spray pipes 230, and an extension pipe 232 is sleeved on the outer end of the liquid spray pipe 230. The bottom surfaces of the liquid spray pipe 230 and the extension pipe 232 are both provided with a plurality of liquid spray ports 231, so that the range of liquid spraying is increased, and the disinfectant is sprayed in the ward space; Fixed rings 222 are symmetrically arranged on both sides of the top of the liquid passage pipe 220, and a connecting ring 233 is arranged on the bottom surface of one end of the liquid spraying pipe 230. The fixed ring 222 and the connecting ring 233 are rotatably connected by pins, so that the liquid spraying pipe 230 can be folded and unfolded for use.

[0033] Furthermore, a supporting rod group 240 is slidably connected between the liquid passage pipe 220 and the two liquid spraying pipes 230. The supporting rod group 240 includes a sliding sleeve 242 that is slidably sleeved with the liquid passage pipe 220, a supporting sleeve 243 that is slidably sleeved with the liquid spraying pipe 230, and two pairs of supporting rods 241 that are rotatably connected between the sliding sleeve 242 and the two supporting sleeves 243. The two pairs of supporting rods 241 are used to support the liquid spraying pipe 230 in a flattened state. The front side wall of the sliding sleeve 242 is threadedly connected with bolts, and the position of the sliding sleeve 242 is positioned by tightening the bolts, so that the spray pipe 230 is in a stably supported state; the top front side wall of the moving tube 210 is threadedly connected with bolts, and the height of the liquid pipe 220 is positioned by tightening the bolts.

[0034] In addition, the transmission group 300 includes two coiled transmission chains 310, a chain winding disk 320 for winding the transmission chain 310, a servo motor 330 for driving the chain winding disk 320 to rotate or to retract or release the transmission chain 310, and a chain supporting disk 340; the chain supporting disk 340 is a pair of open ring structures and is fixedly connected to the bottom surface of the cart 100, and the two chain winding disks 320 are correspondingly connected to the two annular top ports of the chain supporting disk 340, so as to form a space for accommodating the coiled transmission chain 310; a switch for controlling the servo motor 330 and the water pump is installed on the top of the push handle of the cart 100, and a battery is placed in the remaining space on the cart 100 for power supply; The transmission chain 310 is composed of a plurality of chain blocks 311 hinged at the end. The front ends of the two rolls of the transmission chain 310 are in a staggered state and are rotatably connected with a connecting block 312. The chain block 311 is a rectangular plate-shaped structure and a clamping block 3111 and a clamping slot 3112 are respectively arranged at symmetrical positions on its side. The clamping block 3111 is located at a quarter point on one side of the chain block 311, and the clamping slot 3112 is located at a quarter point on the other side of the chain block 311. Two servo motors 330 drive the two rolls of the transmission chain 310. The chain 310 passes through the front opening of the chain support plate 340, and the two opposite and staggered chain blocks 311 are in a fitted state, and the clamping block 3111 is correspondingly engaged with the clamping groove 3112. By staggering and fitting the chain blocks 311 in two rows, the hinges of two adjacent chain blocks 311 are blocked by the middle of the chain block 311 opposite to them, thereby ensuring that the chain blocks 311 in two rows form a straight and firm transmission state. The two rolls of transmission chains 310 extend forward in a straight shape and push the moving tube 210 forward to spray liquid for disinfection.

[0035] Furthermore, a groove 3114 is provided in the middle of one vertical side end of the chain block 311, and a cylindrical block 3113 is protruded in the middle of the other vertical side end of the chain block 311. Two adjacent chain blocks 311 are clamped with the groove 3114 through the cylindrical block 3113 and are rotatably connected by a pin; a sleeve 212 is embedded on the bottom surface of the clamp frame 211, which is clamped with the connecting block 312 and the chain block 311, so that the transmission chain 310 can drive the moving tube 210 to retreat when it is rewound, that is, the transmission chain 310 plays the role of pulling the moving tube 210, and at the same time, the rolled transmission chain 310 does not take up space when it is stored.

[0036] Furthermore, a sleeve 321 is provided through the center of the chain plate 320 from top to bottom, and the inner end of the transmission chain 310 is wrapped and bound with the side wall of the sleeve 321; a pulley 322 is provided on the upper end of the sleeve 321, and the servo motor 330 is installed on the bottom plate of the cart 100 and its output shaft passes through the bottom of the bottom plate and is provided with a transmission belt 331, and the transmission belt 331 and the pulley 322 are arranged and in a taut state. When the servo motor 330 is started, the chain plate 320 is driven to rotate via the transmission belt 331 and the pulley 322, thereby winding or releasing the transmission chain 310.

[0037] It is worth mentioning that the opening of the chain support plate 340 is connected to the front end by a pressure roller 341 through a pin, so that when the two rolls of the transmission chain 310 are released, they are rolled and fitted together by a pair of pressure rollers 341 to form a straight and strong double-row transmission chain 310, which is used to pull the spray frame group 200 to move as a whole to spray liquid; the center of the open ring of the chain support plate 340 is embedded with a sleeve rod 342 sleeved with the sleeve 321, and the top ends of the two sleeve rods 342 are connected to straight rods and the straight rods are fixedly connected to the bottom plate of the cart 100, so that the chain support plate 340 can stably support the transmission chain 310 for storage and release movements.

[0038] When the disinfectant spraying device of the present invention is used, the cart 100 is pushed to the wall of the ward or the bedside passage, the liquid pipe 220 is first raised and the bolts are tightened to position it, then the spray pipe 230 is flipped up and unfolded, and the bolts on the side wall of the sliding sleeve 242 are tightened to position the support angle of the support rod 241, and the length of the extension pipe 232 is stretched according to the space of the ward to expand the spray range; then the two servo motors 330 are started to drive the two transmission chains 310 to release the movement respectively, and the two transmission chains are clamped and fitted by the rolling of a pair of rollers 341, so as to form a straight and strong double-row transmission chain 310 to push the moving pipe 210 to support the spray pipe 230 to move forward as a whole; at the same time, the water pump in the disinfection box 110 is started to pump disinfectant into the spray pipe 230 and the extension pipe 232 through the infusion pipe 250, so that it can move along the limited aisle of the ward, and spray the disinfectant to cover the entire space of the ward, so as to achieve the effect of comprehensive and rapid disinfection.

[0039] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A disinfectant spraying device, comprising a cart (100) and a disinfection box (110) placed thereon, wherein a water pump is placed in the bottom of the disinfection box (110), and a liquid injection port and a liquid outlet are provided on the top surface of the disinfection box (110), characterized in that: A liquid spraying frame group (200) is arranged on the front side of the cart (100), and a transmission group (300) for driving the liquid spraying frame group (200) to move forward to spray liquid is arranged on the bottom surface of the cart (100); The liquid spraying frame assembly (200) comprises a movable tube (210) clamped with the trolley (100), a liquid passing tube (220) telescopically inserted in the central hole of the movable tube (210), and a pair of liquid spraying tubes (230) folded and collapsed and turned up and flattened on both sides of the liquid passing tube (220); a liquid infusion tube (250) sleeved with the liquid outlet of the disinfection box (110) is provided at the rear side of the bottom of the liquid passing tube (220); and a tube placement box (260) for storing the liquid infusion tube (250) is provided in front of the disinfection box (110); The transmission group (300) comprises two coiled transmission chains (310), a chain winding plate (320) for winding the transmission chains (310), a servo motor (330) for driving the chain winding plate (320) to rotate or to retract or release the transmission chain (310), and a chain supporting plate (340); the chain supporting plate (340) is a pair of open ring structures and is fixedly connected to the bottom surface of the cart (100), and the two chain winding plates (320) are correspondingly clamped to two annular top ports of the chain supporting plate (340); the transmission chain (310) is composed of a plurality of chain blocks (311) hinged at the end, and the front ends of the two coils of the transmission chain (310) are in a staggered state and are rotatably connected to a connecting block (312). The chain block (311) is in a rectangular plate-like structure and is provided with a clamping block (3111) and a clamping slot (3112) at symmetrical positions on its side, and the clamping block (3111) is located at a quarter point on one side of the chain block (311), and the clamping slot (3112) is located at a quarter point on the other side of the chain block (311). Two servo motors (330) drive two rolls of transmission chains (310) to pass through the front opening of the chain support plate (340), and the two opposite and misaligned chain blocks (311) are in a fitted state, and the clamping block (3111) and the clamping slot (3112) are correspondingly engaged, so that the two rolls of transmission chains (310) extend forward in a straight shape to push the moving tube (210) forward to spray liquid for disinfection.

2. The disinfectant spraying device according to claim 1, characterized in that: The bottom end of the moving tube (210) is fixedly connected to a clamping frame (211) that is clamped to the bottom plate of the trolley (100), and the bottom surface of the clamping frame (211) is embedded with a clamping sleeve (212) that is clamped to the connecting block (312) and the chain block (311).

3. The disinfectant spraying device according to claim 2, characterized in that: The top end of the liquid passage pipe (220) is sleeved with a three-way pipe (221), and the two side ends of the three-way pipe (221) are sleeved with two liquid spray pipes (230). The outer ends of the liquid spray pipes (230) are sleeved with extension pipes (232), and the bottom surfaces of the liquid spray pipes (230) and the extension pipes (232) are both provided with a plurality of liquid spray ports (231).

4. The disinfectant spraying device according to claim 3, characterized in that: Fixed rings (222) are symmetrically arranged on both sides of the top of the liquid passage pipe (220), and a connecting ring (233) is arranged on the bottom surface of one end of the liquid spray pipe (230). The fixed ring (222) and the connecting ring (233) are rotatably connected via a pin.

5. The disinfectant spraying device according to claim 4, characterized in that: A supporting rod group (240) is slidably connected between the liquid passage pipe (220) and the two liquid spraying pipes (230), and the supporting rod group (240) comprises a sliding sleeve (242) slidably sleeved with the liquid passage pipe (220), a supporting sleeve (243) slidably sleeved with the liquid spraying pipe (230), and two pairs of supporting rods (241) rotatably connected between the sliding sleeve (242) and the two supporting sleeves (243).

6. The disinfectant spraying device according to claim 5, characterized in that: A bolt is threadedly connected through the front side wall of the sliding sleeve (242), and a bolt is threadedly connected through the top front side wall of the moving tube (210).

7. The disinfectant spraying device according to claim 6, characterized in that: A groove (3114) is provided in the middle of one vertical side end of the chain block (311), and a cylindrical block (3113) is protruding from the middle of the other vertical side end of the chain block (311). Two adjacent chain blocks (311) are engaged with the groove (3114) through the cylindrical block (3113) and are rotatably connected through a pin.

8. The disinfectant spraying device according to claim 7, characterized in that: A sleeve (321) is provided through the center of the chain disk (320) from top to bottom, and a pulley (322) is sleeved on the upper end of the sleeve (321). The servo motor (330) is mounted on the bottom plate of the cart (100), and its output shaft passes through the bottom of the bottom plate and is sleeved with a transmission belt (331). The transmission belt (331) and the pulley (322) are sleeved and in a taut state.

9. The disinfectant spraying device according to claim 8, characterized in that: The opening of the chain support plate (340) is rotatably connected to a pressure roller (341) through a pin toward the front end, and a sleeve rod (342) sleeved with the sleeve (321) is embedded in the center of the open ring of the chain support plate (340). The top ends of the two sleeve rods (342) are connected to straight rods, and the straight rods are fixedly connected to the bottom plate of the cart (100).

10. The disinfectant spraying device according to claim 9, characterized in that: The inner width of the tube placement box (260) is matched with the outer diameter of the infusion tube (250), and a tube outlet (261) is provided in the middle of the top end of the tube placement box (260). A box cover (262) is clamped on the top end of the tube placement box (260), one end of the infusion tube (250) passes through the box cover (262) and is sleeved with the liquid outlet of the disinfection box (110), one end of the infusion tube (250) extends along the vertical side end wall of the tube placement box (260) to the bottom thereof, and is coiled in an S shape to the top end of the tube placement box (260), and passes through the tube outlet (261).

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