Anti-infection uniform coating equipment

Abstract

The anti-infection uniform coating equipment comprises a wiping body, a shell, a coating assembly and a liquid squeezing assembly, a plurality of non-uniform through holes are distributed in the wiping body, a first containing cavity and a second containing cavity are formed in the shell, an outlet is formed in one end of the second containing cavity, a through hole communicated with the first containing cavity is formed in the other end of the second containing cavity, and the second containing cavity is used for storing a coating object; the smearing assembly comprises a liquid smearing plate arranged at the outlet, a pressing ring hinged to the liquid smearing plate and an elastic inverted buckle for fixing the pressing ring to the liquid smearing plate, a flow channel communicated with the outlet is formed in the middle of the liquid smearing plate, and the wiping body is fixed to the liquid smearing plate through the pressing ring; the liquid squeezing assembly comprises an intermittent gear, a squeezing plate and a lead screw, one end of the lead screw is arranged in the first containing cavity, the other end of the lead screw penetrates into the second containing cavity from the through hole, the squeezing plate is arranged in the second containing cavity and is in threaded connection with the lead screw, and the intermittent gear is arranged in the first containing cavity and is engaged with the lead screw; the lead screw drives the extrusion plate to move in the second containing cavity in a stepping mode to extrude the smear, so that the output amount of the smear flowing to the wiping body is controlled.

Description

Technical Field

[0001] The invention relates to the technical field of B-ultrasound examination equipment, in particular to an infection-proof uniform coating device. Background Art

[0002] B-ultrasound examination is a method of examination that uses the physical characteristics of ultrasound waves such as reflection and refraction in human tissues to receive signals through instruments to display the morphology of different tissues and organs. Doctors can use this method to determine the nature of the lesion and the degree of functional damage. In order to ensure the accuracy of the examination results, ultrasound medical staff need to apply a coating on the surface of the ultrasound probe to improve the transmission effect of ultrasound waves.

[0003] During B-ultrasound examination, the application of the smear is usually assisted by a special application device so as to evenly cover the patient's examination area. However, most of the existing application devices have certain defects. Usually, these devices are applied by setting an application block at the bottom of the smear storage tank and directly contacting the skin. Since a device needs to be used repeatedly for different patients, this design can easily cause bacteria to be carried on the surface of the application block, increasing the risk of cross-infection between patients. In addition, most of the existing application devices use a piston extrusion method to release the smear, but this method is often difficult to accurately control the amount of application, which can easily cause excessive waste of the smear.

[0004] Therefore, in order to ensure the safety and accuracy of B-ultrasound examinations, improving the design of existing anti-infection coating equipment to prevent cross-infection and reduce the waste of coating materials is an urgent problem to be solved in the current technical field. Summary of the invention

[0005] The present invention provides an anti-infection uniform coating device to solve the technical problem of cross infection risk in the prior art anti-infection uniform coating device for coating materials.

[0006] In order to solve the above technical problems, the present invention provides an anti-infection uniform coating device, comprising: A wiping body, wherein the wiping body is made of a soft material and has a plurality of unevenly distributed through holes; A shell, wherein a first accommodating cavity and a second accommodating cavity are provided in the shell, wherein the second accommodating cavity is provided with an outlet at one end and a through hole communicating with the first accommodating cavity at the other end, and is used for storing the smear; A coating assembly, the coating assembly comprising a coating plate arranged at the outlet, a pressure ring hinged to the coating plate, and an elastic undercut fixing the pressure ring to the coating plate, a flow channel connected to the outlet is arranged in the middle of the coating plate, and the wiping body is fixed to the coating plate through the pressure ring; A liquid squeezing component, the liquid squeezing component includes an intermittent gear, an extrusion plate and a screw rod, one end of the screw rod is arranged in the first accommodating chamber, and the other end passes through the through hole to the second accommodating chamber, the extrusion plate is arranged in the second accommodating chamber and is threadedly connected with the screw rod, the intermittent gear is arranged in the first accommodating chamber and meshes with the screw rod, so that the screw rod drives the extrusion plate to move stepwise in the second accommodating chamber to extrude the smear, so as to control the output amount of the smear flowing to the wiping body through the flow channel.

[0007] Furthermore, the flow channel includes a diverter bin, the upper end wall of the diverter bin is penetrated by a liquid inlet hole connected to the second accommodating chamber, the lower end wall of the diverter bin is penetrated by a plurality of diverter holes connected to the wiping body, and the diverter holes correspond to a plurality of through holes, and a placement hole is penetrated in the middle of the pressure ring for fixing the wiping body.

[0008] Furthermore, a plurality of the diverter holes are evenly distributed on the coating plate, or a plurality of the diverter holes are distributed on the coating plate and the density of the diverter holes increases gradually from the middle of the coating plate to the outside.

[0009] Furthermore, the pressure ring is provided with a pressure groove on one side close to the coating plate and along the circumference of the placement hole, and the wiping body is provided with a fixing ring along the circumferential outer side, and the pressure groove is matched with the fixing ring.

[0010] Furthermore, the coating plate is penetrated by a limiting hole for the elastic undercut to pass through, and the elastic undercut includes two support plates arranged at the edge of the pressure groove and two limiting blocks arranged at the free ends of the support plates, and the limiting blocks are located on the outer walls of the support plates away from each other. When the two support plates are squeezed toward each other and pass through the limiting hole, the limiting blocks are clamped with the upper end surface of the coating plate.

[0011] Furthermore, the application assembly further comprises an elastic member, both ends of which are respectively fixed on inner walls close to the two support plates, and when the elastic member recovers, it can drive the support plates to return to their original positions.

[0012] Furthermore, the limiting block is a wedge-shaped block, and an inclined portion is provided on the outer wall of the limiting block away from the supporting plate so as to pass through the limiting hole.

[0013] Furthermore, it also includes a direction-changing component, the two ends of which are respectively connected to the outer shell and the coating component, the direction-changing component includes a liquid outlet pipe, a connecting ball and a connecting seat, one end of the liquid outlet pipe is fixed to the end of the outer shell and communicates with the second accommodating cavity, and the other end is fixedly connected to the connecting ball, one end of the connecting seat is fixedly connected to the coating plate, and the other end is provided with an open cavity adapted to the connecting ball, the connecting ball is installed in the open cavity, and the connecting seat can swing on the connecting ball.

[0014] Furthermore, the interior of the connecting ball is hollowed out, and a side of the connecting ball close to the open cavity is penetrated by a plurality of liquid outlet holes connected with the liquid outlet pipe, and the open cavity is connected with the diversion chamber.

[0015] Furthermore, the connection seat can swing on the connection ball within an angle range of less than 30 degrees.

[0016] Compared with the prior art, the anti-infection coating device according to the embodiment of the present invention has the following beneficial effects: The embodiment of the present invention is provided with a liquid squeezing assembly, including a matching intermittent gear and a screw. When the device is used, the intermittent gear can drive the screw to rotate intermittently, thereby driving the extrusion plate screwed on the screw to step and move in the second accommodating chamber for storing the smear. The pressure squeezes the smear through the flow channel opened on the liquid coating plate to the replaceable wiping body on the coating assembly and flows out from the through hole to control the amount of the smear used. Although the smear is unevenly distributed after flowing out through the unevenly distributed through holes, the smear can be evenly distributed by moving the wiping body. In addition, the uneven distribution adopted in the embodiment of the present invention can also prevent the smear from being locally accumulated during the movement of the wiping body, which makes it difficult to apply evenly. The fixing effect of the liquid coating plate and the pressure ring on the coating assembly through the elastic undercut facilitates the fixing and replacement of the wiping body. A new wiping body can be replaced after a single application is completed, reducing the risk of cross infection caused by multiple people using it, making the use of the smear uniform coating device for B-ultrasound examination safer, convenient to clean and replace, avoiding pollution and inconvenience in use, improving the convenience and safety of the device, and being suitable for use scenarios in various environments.

[0017] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to better understand the present invention and do not constitute a limitation of the present invention. Figure 1 This is a schematic structural diagram of an anti-infection coating device provided by an embodiment of the present invention from one angle; Figure 2 It is a structural schematic diagram of the anti-infection uniform coating device provided by an embodiment of the present invention from another angle; Figure 3 is a cross-sectional schematic diagram of an anti-infection uniform coating device provided by an embodiment of the present invention; Figure 4 It is a cross-sectional schematic diagram of a coating component and a direction-changing component in an anti-infection coating device provided by an embodiment of the present invention; Figure 5 It is a structural schematic diagram of a liquid squeezing component in an anti-infection coating device provided by an embodiment of the present invention; Figure 6 It is a schematic diagram of the structure of a wiping body in an anti-infection coating device provided by an embodiment of the present invention; Figure 7 It is a schematic diagram of the structure of a coating component in an anti-infection coating device provided by an embodiment of the present invention; Figure 8 yes Figure 7 An enlarged schematic diagram of the elastic undercut structure at A in the middle.

[0019] In the figure, 10, outer shell; 11, partition plate; 12, first accommodating chamber; 13, second accommodating chamber; 20, coating assembly; 21, coating plate; 211, diversion chamber; 212, diversion hole; 213, limiting hole; 22, pressing ring; 221, placement hole; 222, pressing groove; 23, elastic undercut; 231, support plate; 232, limiting block; 24, elastic member; 30, liquid squeezing assembly; 31, squeezing plate; 32, screw rod; 33, intermittent gear; 34, driven gear; 35, driving motor; 40, direction changing assembly; 41, connecting ball; 411, liquid outlet hole; 42, connecting seat; 43, liquid outlet pipe; 50, wiping body; 51, fixing ring; 52, through hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings and embodiments in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that directional words, such as the terms "middle", "upper", "lower", "inside" and "outside", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific scope of protection of the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "at least" means one or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] like Figure 1-7 As shown, an embodiment of the present invention provides an anti-infection uniform coating device, including a swab body 50, a housing 10, a coating component 20 and a liquid squeezing component 30; The wiping body 50 is made of a soft material and has a plurality of unevenly distributed through holes 52; The housing 10 is provided with a first accommodating chamber 12 and a second accommodating chamber 13. The second accommodating chamber 13 is provided with an outlet at one end and a through hole communicating with the first accommodating chamber 12 at the other end for storing the smear. The coating assembly 20 includes a coating plate 21 disposed at the outlet, a pressure ring 22 hinged to the coating plate 21, and an elastic undercut 23 for fixing the pressure ring 22 on the coating plate 21. A flow channel connected to the outlet is disposed in the middle of the coating plate 21, and the wiping body 50 is fixed on the coating plate 21 through the pressure ring 22. The liquid squeezing assembly 30 includes an intermittent gear 33, an extrusion plate 31 and a screw 32. One end of the screw 32 is arranged in the first accommodating chamber 12, and the other end passes through the through hole to the second accommodating chamber 13. The extrusion plate 31 is rotatably arranged on the screw 32 in the second accommodating chamber and is screwed with the screw 32. The intermittent gear 33 is arranged in the first accommodating chamber 12 and meshes with the screw 32, so that the screw 32 drives the extrusion plate 31 to move stepwise in the second accommodating chamber 13 to extrude the smear, so as to control the output amount of the smear flowing to the wiping body 50 through the flow channel.

[0025] The embodiment of the present invention is provided with a liquid squeezing assembly 30, including an intermittent gear 33 and a screw rod 32 that cooperate with each other. When the device is used, the intermittent gear 33 can drive the screw rod 32 to rotate intermittently, thereby driving the squeezing plate 31 screwed on the screw rod 32 to move stepwise in the second accommodating chamber 13 for storing the smear. The pressure squeezes the smear through the flow channel opened on the liquid coating plate 21 to the replaceable wiping body 50 on the smearing assembly 20 and flows out from the through hole, so as to control the amount of the smear used. Although the smear is unevenly distributed after flowing out through the unevenly distributed through holes 52, the smear can be evenly distributed by moving the wiping body 50. The wiping body 50 is evenly distributed, and the uneven distribution adopted in the embodiment of the present invention can also prevent the local accumulation of the smear during the movement of the wiping body 50, which makes the smearing difficult to be evenly distributed. The coating plate 21 and the pressure ring 22 on the smearing component 20 are fixed by the elastic undercut 23, which facilitates the fixation and replacement of the wiping body 50. After a single smearing is completed, a new wiping body 50 can be replaced, reducing the risk of cross infection caused by multiple people using it, making the smearing uniform coating device for B-ultrasound examination safer to use, convenient to clean and replace, avoiding pollution and inconvenience in use, improving the convenience and safety of the equipment, and being suitable for use scenarios in various environments.

[0026] In order to facilitate the installation and isolation of the liquid squeezing component 30 and the storage of the smear, a receiving chamber is provided in the housing 10, and a partition plate 11 is provided in the receiving chamber. The receiving chamber is divided into two parts, a first receiving chamber 12 and a second receiving chamber 13, by the partition plate 11. That is, the first receiving chamber 12 is used for squeezing liquid and controlling output, and the second receiving chamber 13 is used for storing the smear. The outlet provided on the second receiving chamber 13 facilitates the diversion of the stored smear to the smear component 20. The housing 10 can be made of a lightweight plastic material or a hard stainless steel material. In order to further better observe the remaining amount of the smear in the second receiving chamber 13, a transparent observation window can be provided on the side wall of the housing 10 so that the operator can replenish the smear in time. At the same time, in order to ensure timely and safe replenishment of the smear into the second accommodating chamber 13, one end of the shell 10 close to the second accommodating chamber 13 can be set as a sealing cover that is sealed to ensure the neatness of the smear in the accommodating chamber. The connection between the sealing cover and the shell 10 can adopt a rotating tightening type, an automatic closing type or a snap-on sealing type structure connection, so that the smear can be sealed and stored to avoid contamination and leakage.

[0027] In addition, the extrusion assembly also includes a driving motor 35 and a driven gear 34. The driven gear 34 and the driving motor 35 are arranged in the first accommodating chamber 12. The driven gear 34 is mounted on the screw 32. The intermittent gear 33 is mounted on the driving motor 35 and meshes with the driven gear 34, and is used to drive the driven gear 34 seat to rotate intermittently to control the output of the smear entering the diversion chamber 211 through the flow channel. The automatic operation of the equipment is realized through the cooperation of the driving motor 35 and the driven gear 34. The driving motor 35 drives the intermittent gear 33 to rotate intermittently, and then drives the driven gear 34 seat to rotate, so that the stepping motion of the extrusion plate 31 driven by the screw 32 is more accurate and efficient, reducing the trouble of manual operation and improving the automation degree and convenience of use of the equipment.

[0028] It should be noted that the intermittent gear 33 (also known as an incomplete gear) is a special mechanical component used to convert continuous rotation into intermittent motion. Only one part of its gear part has teeth, and the other part has no teeth. This structure makes the gear not driven by continuous rotation during the movement, but in stages. When the driving gear rotates, only in the part where the gears are meshed can the driving gear drive the driven gear 34 to rotate, thereby realizing intermittent transmission. In the process of quantitative output of the smear, each movement of the intermittent gear 33 will drive the screw 32 meshed with it to rotate a certain angle, so that the extrusion plate 31 moves forward or backward in the second accommodating chamber 13, and the smear stored in the second accommodating chamber 13 flows into the flow channel through the notch of the end arm of the housing 10 close to the second accommodating chamber 13 through the pressure, and then guides it to the replaceable wiping body 50 at one end of the coating plate 21 through the flow channel. This intermittent movement can ensure that each time the gear rotates, the extrusion plate 31 only moves forward a fixed step distance, thereby squeezing out a certain amount of smear. The wiping body 50 can be made of a soft material, such as a sponge, and has the characteristics of being able to absorb water, being soft and having a good water absorption effect. Due to its porous structure and the through holes 52 provided thereon, it is helpful for the absorption and release of the smear.

[0029] like Figure 3 and 4 As shown, in an optional embodiment of the present invention, the flow channel includes a diverter bin 211, the upper end wall of the diverter bin 211 is penetrated by a liquid inlet hole connected to the second accommodating chamber 13, the lower end wall of the diverter bin 211 is penetrated by a plurality of diverter holes 212 connected to the wiping body 50, and the diverter holes 212 correspond to a plurality of through holes 52, and a placement hole 221 is penetrated in the middle of the pressure ring 22 for fixing the wiping body 50.

[0030] Specifically, by setting a diversion bin 211 in the coating plate 21, and designing a liquid inlet hole on the upper end wall of the diversion bin 211 to guide the smear flowing out of the second accommodating chamber 13, and designing a plurality of diversion holes 212 on the lower end wall, the positions of the diversion holes 212 are reasonably arranged, and the flow rate of the smear can be effectively regulated to ensure that the smear is evenly distributed on the coating plate 21, and flows into the wiping body 50 through the corresponding through holes 52, and is evenly guided to various areas of the wiping body 50. In this way, the entire surface of the wiping body 50 can evenly absorb the smear, avoiding the situation where there is too much or too little smear in a local area, ensuring the consistency of the coating effect, and reducing unnecessary loss and waste. Compared with the traditional single liquid outlet design, the cooperation between the diversion bin 211 and the through hole 52 can make the utilization rate of the smear higher, avoiding excessive smear from staying on the coating plate 21 or flowing to unnecessary places. Among them, since the wiping body 50 is designed to match the diversion hole 212 and the through hole 52, the wiping body 50 can be conveniently replaced through the placement hole 221 in the middle of the pressure ring 22 after each use, avoiding complicated operations on cleaning and maintenance, and further improving the convenience of the equipment.

[0031] It should be noted that, in order to achieve a better penetration effect of the wiping body 50, one diversion hole 212 can correspond to multiple through holes 52, so that the coating can quickly penetrate into the wiping body 50, which is convenient for coating and improves the performance and coating quality of the sponge. In addition, the diversion chamber 211 reasonably designs the shape of the diversion hole 212, such as a funnel-shaped design, so that the coating automatically flows downward under the action of gravity and pressure, reducing the possibility of backflow, which is particularly suitable for long-term use of the device and maintaining stable output during multiple coating cycles, effectively preventing internal contamination of the diversion chamber 211, and ensuring the long-term use effect and reliability of the device.

[0032] like Figure 3 and 5 As shown, in an optional embodiment of the present invention, a plurality of diverter holes 212 are evenly distributed on the coating plate 21, or a plurality of diverter holes 212 are distributed on the coating plate 21 and the density of the diverter holes 212 gradually increases from the middle of the coating plate 21 to the outside.

[0033] Specifically, the evenly distributed diverter holes 212 on the coating plate 21 can ensure that the coating material is evenly released in the entire coating area, so that the coating material can better penetrate into the wiping body 50, avoid defects caused by uneven coating thickness, and improve product quality. The design of gradually increasing the density of the diverter holes 212 can be optimized according to the coating requirements of different areas, ensuring that the coating liquid is fully covered at the edge or specific area. Reasonable pore size and distribution can promote the fluidity of the coating, reduce bubbles and spots, and improve the stability of the coating process.

[0034] like Figure 3-7As shown, in an optional embodiment of the present invention, the pressure ring 22 is close to the side of the coating plate 21 and is provided with a pressure groove 222 along the circumference of the placement hole 221, and the wiping body 50 is provided with a fixing ring 51 along the circumferential outer side, and the pressure groove 222 is adapted to the fixing ring 51.

[0035] Specifically, a placement hole 221 is provided through the middle of the pressure ring 22 to provide a storage space for installing the wiping body 50, and the mutual adaptation of the pressure groove 222 and the fixed ring 51 forms a stable locking structure to ensure that the wiping body 50 will not loosen or shift during use. Especially during the application process, since a certain force needs to be applied, the stable fixation can ensure that the wiping body 50 always remains in the predetermined position, thereby achieving uniform application. In addition, the wiping body 50 is directly embedded in the fixed ring 51, and then fixed by the pressure groove 222. The hand can be prevented from contacting the wiping body 50 during the entire operation. Especially in scenarios requiring high hygiene standards (such as medical or aseptic operations), this design can greatly reduce the risk of cross-infection caused by contact and improve the safety of the equipment.

[0036] It should be noted that the presence of the fixing ring 51 enables the pressure ring 22 to evenly distribute the pressure around the wiping body 50 when locking the wiping body 50, rather than directly acting on the sponge itself. The fixing ring 51 provides a stable support structure for the wiping body 50, avoiding the deformation of the sponge caused by direct compression, thereby ensuring that its surface remains flat and ensuring that the smear effectively penetrates the wiping body 50.

[0037] like Figure 3-8 As shown, in an optional embodiment of the present invention, the elastic undercut 23 includes two support plates 231 arranged on the edge of the pressing groove 222 and two limit blocks 232 arranged at the free ends of the support plates 231. The limit blocks 232 are located on the outer wall away from the support plates 231. When the two support plates 231 are squeezed toward each other and pass through the limit holes 213, the limit blocks 232 are snapped into engagement with the upper end surface of the coating plate 21.

[0038] Specifically, through the cooperation of the support plate 231 and the limit block 232 in the elastic undercut 23, when the elastic undercut 23 passes through the limit hole 213 on the coating plate 21, the two support plates 231 are squeezed close to each other, and then the limit block 232 will be mutually engaged with the upper end surface of the coating plate 21, so that the pressure ring 22 can more firmly lock the wiping body 50 on the coating plate 21, avoiding the displacement or loosening of the wiping body 50 due to the external force applied during the coating process, ensuring the stability and consistency of the coating process, and improving the reliability and user experience of the equipment. When the wiping body 50 needs to be replaced, it is only necessary to press the limit blocks 232 that extend out from the two limit blocks and are clamped on the coating plate 21, so that the two support plates 231 are squeezed toward each other again, ending the clamping restriction of the limit blocks 232 and the upper end faces of the coating plate 21, and the elastic undercuts 23 can be smoothly withdrawn from the limit holes 213. The pressure ring 22 can be opened to remove the used wiping body 50 and replace it with a new wiping sponge, providing a convenient disassembly and replacement method, allowing users to quickly maintain the equipment and reduce operation time, which is particularly suitable for usage scenarios that require frequent replacement or cleaning.

[0039] Among them, when selecting the material of the support plate 231, considering that it needs to withstand frequent pressing and bending deformation, the elasticity, durability and strength of the material are key factors, and materials such as polypropylene, polyurethane, nylon, aluminum alloy, high-density polyethylene or glass fiber reinforced plastic should be given priority. These materials all have good elasticity, durability and strength, and can effectively cope with frequent pressing and bending deformation, thereby ensuring the stability and reliability of the support plate 231 during use. Choosing the right material can not only extend the service life of the device, but also improve its overall performance and user experience.

[0040] like Figure 3-8 As shown, in an optional embodiment of the present invention, the application assembly 20 further includes an elastic member 24, both ends of which are respectively fixed on the inner walls of the two support plates 231, and when the elastic member 24 returns, it can drive the support plates 231 to return to their original positions.

[0041] Specifically, by providing the elastic member 24, the support plate 231 can be quickly reset by the restoring force of the elastic member 24 after the limit block 232 is released, reducing the tediousness of manual adjustment. This quick reset function ensures the recovery of the device after each operation, prevents the residual deformation of the support plate 231 from affecting subsequent use, and enhances the overall operability and good user experience. The material selection of the elastic member 24 should take into account its elasticity, durability and environmental adaptability. It can be made of materials such as silicone, rubber, polyurethane or spring to ensure the stable performance of the elastic member 24 in actual applications and enhance the reliability and durability of the device.

[0042] like Figure 8As shown, in an optional embodiment of the present invention, the limiting block 232 is a wedge-shaped block, and an inclined portion is provided on the outer wall of the limiting block 232 away from the supporting plate 231 so as to pass through the limiting hole 213 .

[0043] Specifically, the structural design of the wedge block can achieve effective locking through the inclination angle of the inclined surface when inserted into the limiting hole 213. After the limiting block 232 is inserted into the limiting hole 213, the wedge-shaped structure will reduce the friction between the side wall of the limiting block 232 and the hole wall, so that the limiting block 232 can pass smoothly, simplifying the installation and removal process, reducing the work intensity of the operator, and improving work efficiency. In order to better insert the elastic undercut 23 into the limiting hole 213, a corresponding inclined surface can also be set on the inner wall of the limiting hole 213 near the elastic undercut 23. The inclination angle of the inclined surface in the limiting hole 213 corresponds to the inclined surface of the limiting block 232, so that the two form a natural guiding path during insertion, which can help the limiting block 232 enter the hole more smoothly, improve the fluency during the operation process, make it more convenient for users to use the device, reduce the frustration caused by the difficulty of insertion, and improve the overall user experience.

[0044] like Figure 1-4 As shown, in an optional embodiment of the present invention, it also includes a changing component 40, and both ends of the changing component 40 are respectively connected to the outer shell 10 and the coating component 20. The changing component 40 includes a liquid outlet pipe 43, a connecting ball 41 and a connecting seat 42. One end of the liquid outlet pipe 43 is fixed to the end of the outer shell 10 and communicates with the second accommodating chamber 13, and the other end is fixedly connected to the connecting ball 41. One end of the connecting seat 42 is fixedly connected to the coating plate 21, and the other end is provided with an open cavity adapted to the connecting ball 41. The connecting ball 41 is installed in the open cavity, and the connecting seat 42 can swing on the connecting ball 41.

[0045] Specifically, by setting a direction-changing component 40, the two ends of the direction-changing component 40 are respectively connected to the housing 10 and the application component 20, and the direction-changing component 40 includes a structural match of a connecting ball 41 and a connecting seat 42. The connecting ball 41 can be flexibly adjusted within a certain application angle range, providing a multi-dimensional flexible adjustment function. This design can flexibly change the coating direction according to the needs of the user, so that the application component 20 can be more adaptable to different angles and positions, and improve the operational flexibility and applicability of the device. In application scenarios such as B-ultrasound examinations, differences in patient position and examination sites may require frequent adjustments to the angle of the application component 20. The setting of the direction-changing component 40 ensures that the device can quickly and accurately adjust the liquid outlet direction, simplifies the operating process, and improves the use efficiency of the device. At the same time, the movable connection between the connecting ball 41 and the connecting seat 42 can absorb the impact force or pressure in a part of the operation of the application component 20, which can effectively extend the service life of the device.

[0046] like Figure 1-4 As shown, in an optional embodiment of the present invention, the interior of the connecting ball 41 is hollowed out, and a plurality of liquid outlet holes 411 connected to the liquid outlet pipe 43 are penetrated on one side of the connecting ball 41 close to the opening cavity, and the opening cavity is connected to the diversion chamber 211.

[0047] Specifically, the hollow design inside the connecting ball 41 enables the liquid to be evenly distributed inside the connecting ball 41, and flows to the coating plate 21 through multiple liquid outlet holes 411. This diversion design ensures that the coating can be more evenly distributed to the wiping body 50 through the liquid outlet holes 411, avoiding the problem of slow liquid outlet speed caused by the concentration of liquid at one outlet. The hollow structure inside the connecting ball 41 provides more space for liquid flow, reduces the resistance during the flow process, and enables the liquid to enter the connecting ball 41 more quickly and smoothly through the liquid outlet pipe 43, and flow out from the liquid outlet hole 411 into the diversion chamber 211 on the coating plate 21, and then penetrate into the wiping body 50, thereby improving the liquid outlet efficiency of the device.

[0048] like Figure 1-4 As shown, in an optional embodiment of the present invention, the angle range in which the connecting seat 42 can swing on the connecting ball 41 is less than 30 degrees.

[0049] Specifically, by limiting the swing angle to within 30 degrees, the device can more accurately control the angle change of the application component 20, so that the device can provide fine control when manually adjusting. The user can adjust the liquid discharge direction with only a small hand movement, avoiding the inconvenience caused by adjustment at too large an angle, thereby improving the flexibility and accuracy of the device operation. By limiting the angle range, the user does not need to perform complicated operating steps, and the hand adjustment action is simple and easy to master, making the operation of the device more intuitive and convenient, suitable for users of different levels. This design makes the device easier to use and more suitable for frequent use scenarios.

[0050] The anti-infection uniform coating device provided in the embodiment of the present invention can be applied to the application scenario of the smear for B-ultrasound examination, providing users with an efficient, convenient and uniform smear coating device. When the anti-infection uniform coating device is in use, the actual working process of controlling the output amount of the smear on the wiping body 50 by controlling the rotation of the intermittent gear 33 through the driving motor 35 is as follows: when the anti-infection uniform coating device is in use, by starting the start button set on the shell 10, the driving motor 35 in the first accommodating chamber 12 will drive the intermittent gear 33 and the driven gear 34 to engage and rotate, and the driven gear 34 will then drive the screw 32 to rotate intermittently, so that the extrusion plate 31 in the second accommodating chamber 13 moves in steps to compress the smear stored in the space of the second accommodating chamber 13, and the smear passes through the liquid outlet pipe 43 and then flows through the connecting ball 41 and the connecting seat 42 and then enters the diversion bin 211 on the coating plate 21, and finally through the diversion effect of the diversion hole 212, the smear is evenly penetrated into the through hole set in the wiping body 50, thereby realizing the control of the amount of smear used and avoiding the waste caused by excessive squeezing of the smear. When replacing the wiping body 50 of the anti-infection coating device each time, it is only necessary to pinch the two limit blocks 232 together with the two support plates 231 relative to each other, allowing the elastic buckle 23 to pass through the limit hole 213 that passes through the coating plate 21, and the elastic member 24 drives the two support plates 231 to reset the pressure ring 22 to release the locking effect on the wiping body 50, and the wiping body 50 can be removed and replaced with a new one; after the replacement is completed, the elastic buckle 23 is aligned with the limit hole 213, and by pressing the pressure ring 22, the elastic buckle 23 returns to pass through the limit hole 213, and finally the limit block 232 is clamped on the upper end surface of the coating plate 21, so that the new wiping body 50 can be firmly fixed on the coating plate 21, and the structure that facilitates the replacement of the wiping body 50 is not only convenient to operate but also can effectively avoid cross infection.

[0051] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An anti-infection coating device, characterized in that: include: A wiping body, wherein the wiping body is made of a soft material and has a plurality of unevenly distributed through holes; A shell, wherein a first accommodating cavity and a second accommodating cavity are provided in the shell, wherein the second accommodating cavity is provided with an outlet at one end and a through hole communicating with the first accommodating cavity at the other end, and is used for storing the smear; A coating assembly, the coating assembly comprising a coating plate arranged at the outlet, a pressure ring hinged to the coating plate, and an elastic undercut fixing the pressure ring to the coating plate, a flow channel connected to the outlet is arranged in the middle of the coating plate, and the wiping body is fixed to the coating plate through the pressure ring; A liquid squeezing component, the liquid squeezing component includes an intermittent gear, an extrusion plate and a screw rod, one end of the screw rod is arranged in the first accommodating chamber, and the other end passes through the through hole to the second accommodating chamber, the extrusion plate is arranged in the second accommodating chamber and is threadedly connected with the screw rod, the intermittent gear is arranged in the first accommodating chamber and meshes with the screw rod, so that the screw rod drives the extrusion plate to move stepwise in the second accommodating chamber to extrude the smear, so as to control the output amount of the smear flowing to the wiping body through the flow channel.

2. The anti-infection coating device according to claim 1, characterized in that: The flow channel includes a diverter bin, the upper end wall of the diverter bin is penetrated by a liquid inlet hole connected to the second accommodating chamber, the lower end wall of the diverter bin is penetrated by multiple diverter holes connected to the wiping body, and the diverter holes correspond to multiple through holes, and a placement hole is penetrated in the middle of the pressure ring for fixing the wiping body.

3. The anti-infection coating device according to claim 2, characterized in that: A plurality of the diverter holes are evenly distributed on the coating plate, or a plurality of the diverter holes are distributed on the coating plate and the density of the diverter holes increases gradually from the middle of the coating plate to the outside.

4. The anti-infection coating device according to claim 2, characterized in that: The pressure ring is close to one side of the coating plate and is provided with a pressure groove along the circumference of the placement hole. The wiping body is provided with a fixing ring along the circumferential outer side, and the pressure groove is matched with the fixing ring.

5. The anti-infection coating device according to claim 4, characterized in that: The coating plate is provided with a limiting hole through which the elastic undercut passes. The elastic undercut includes two support plates arranged at the edge of the pressure groove and two limiting blocks arranged at the free ends of the support plates. The limiting blocks are located on the outer walls of the support plates away from each other. When the two support plates are squeezed toward each other and pass through the limiting hole, the limiting blocks are engaged with the upper end surface of the coating plate.

6. The anti-infection coating device according to claim 5, characterized in that: The smearing assembly further comprises an elastic member, two ends of which are respectively fixed on inner walls close to the two support plates, and when the elastic member is restored, the support plates can be driven to return to their original positions.

7. The anti-infection coating device according to claim 5, characterized in that: The limiting block is a wedge-shaped block, and an inclined portion is provided on the outer wall of the limiting block away from the supporting plate so as to pass through the limiting hole.

8. The anti-infection coating device according to claim 2, characterized in that: It also includes a direction-changing component, both ends of which are respectively connected to the outer shell and the coating component, and the direction-changing component includes a liquid outlet pipe, a connecting ball and a connecting seat, one end of the liquid outlet pipe is fixed to the end of the outer shell and communicates with the second accommodating cavity, and the other end is fixedly connected to the connecting ball, one end of the connecting seat is fixedly connected to the coating plate, and the other end is provided with an open cavity adapted to the connecting ball, the connecting ball is installed in the open cavity, and the connecting seat can swing on the connecting ball.

9. The anti-infection coating device according to claim 8, characterized in that: The interior of the connecting ball is hollowed out, and a side of the connecting ball close to the open cavity is penetrated by a plurality of liquid outlet holes connected with the liquid outlet pipe, and the open cavity is connected with the diversion chamber.

10. The anti-infection coating device according to claim 8, characterized in that: The angle range in which the connecting seat can swing on the connecting ball is less than 30 degrees.

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