Applicator

Abstract

The embodiment of the utility model provides a smearing device, and relates to the field of smearing tools. The applicator comprises a connecting piece, a driving piece, a spraying piece and an applying head, wherein the driving piece, the spraying piece and the smearing head are all installed on the connecting piece, and the driving piece is used for moving relative to the connecting piece so as to drive the spraying piece to spray out liquid. In the using process of the applicator, the driving piece can be operated to drive the spraying piece to spray out liquid, then the applying head is moved to make contact with the liquid to achieve the applying effect, and the convenience of one-hand operation can be improved when the back position is applied.

Description

Technical Field

[0001] The utility model relates to the field of application tools, in particular to an applicator. Background Art

[0002] Existing applicators are usually made of water-absorbing materials such as sponges. When using them, the liquid needs to be adsorbed on the surface of the material and then squeezed out by pressing. When applying to the back, it is inconvenient to operate with one hand. Utility Model Content

[0003] The utility model provides an applicator which can be conveniently operated with one hand when applying to the back.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] An embodiment of the utility model provides an applicator, which comprises:

[0006] Connecting parts, driving parts, spraying parts and coating heads;

[0007] The driving member, the spraying member and the coating head are all mounted on the connecting member, and the driving member is used to move relative to the connecting member to drive the spraying member to spray liquid.

[0008] Optionally, the injection component includes a pressure head, an inner cylinder and a nozzle, the pressure head and the inner cylinder are accommodated in the inner cavity of the connecting component, the pressure head is connected to the driving component and cooperates with the inner cylinder, the nozzle is communicated with the inner cylinder, the inner cylinder is used to accommodate liquid, and the pressure head is used to move relative to the inner cylinder to drive the nozzle to spray liquid.

[0009] Optionally, the applicator further comprises a liquid supply tank, and the liquid supply tank is communicated with the inner cylinder.

[0010] Optionally, the liquid supply tank includes a tank body and a liquid pipe, the tank body is accommodated in the inner cavity of the coating head, and the liquid pipe is connected between the tank body and the inner cylinder.

[0011] Optionally, the inner cylinder includes a first section, a second section and a third section which are connected in sequence, the inner wall of the first section cooperates with the pressure head, the third section is connected with the nozzle, and the inner diameters of the first section and the third section are both larger than the inner diameter of the second section.

[0012] Optionally, the pressure head includes a pressure plate, a guide plate and a carrier plate which are connected in sequence, the pressure plate cooperates with the inner cylinder, and the carrier plate is connected to the driving member.

[0013] Optionally, the driving member includes a connected lever and a transmission rod, the lever passes through the connecting member, the transmission rod is accommodated in the inner cavity of the connecting member, one end of the transmission rod away from the lever is connected to the injection member, and the lever is used to rotate relative to the connecting member to drive the injection member to move through the transmission rod.

[0014] Optionally, the coating head has a planar plate and a spherical plate that are arranged opposite to each other, and the coating head is rotatably connected to the connecting member.

[0015] The embodiment of the utility model also provides an applicator, which comprises:

[0016] Driving parts, connecting parts, spraying parts, liquid supply tanks and coating heads;

[0017] The driving member, the spraying member and the coating head are installed on the connecting member, the liquid supply tank contains liquid and is connected to the spraying member, and the driving member is used to move relative to the connecting member to drive the spraying member to spray liquid.

[0018] The beneficial effects of the applicator of the utility model embodiment include, for example:

[0019] The applicator includes a connecting member, a driving member, a spraying member and an applicator head; wherein the driving member, the spraying member and the applicator head are all mounted on the connecting member, and the driving member is used to move relative to the connecting member to drive the spraying member to spray liquid. During use, the applicator can drive the spraying member to spray liquid by operating the driving member, and then move the applicator head to contact the liquid to achieve the effect of application, which can also improve the convenience of one-handed operation when applying to the back. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic structural diagram of the applicator provided in an embodiment of the utility model at a first viewing angle;

[0022] Figure 2 It is a structural schematic diagram of the applicator provided in the embodiment of the utility model at a second viewing angle;

[0023] Figure 3 It is a schematic structural diagram of the injection member provided in the embodiment of the utility model at a first viewing angle;

[0024] Figure 4 It is a schematic structural diagram of the injection member provided in the embodiment of the utility model at a second viewing angle;

[0025] Figure 5 This is a schematic structural diagram of a handle portion provided in an embodiment of the utility model at a first viewing angle;

[0026] Figure 6 This is a schematic structural diagram of a handle portion provided in an embodiment of the utility model at a second viewing angle;

[0027] Figure 7 It is a schematic diagram of the structure of the rectifying ring provided in the embodiment of the utility model.

[0028] Icons: 100-applicator; 110-connector; 111-handle; 1111-pillar; 1112-extension slot; 112-extension portion; 113-shield; 119-limiting column; 130-driving member; 131-push rod; 1311-branch hole; 132-transmission rod; 1321-guide slot; 133-guide block; 150-injection member; 151-pressing head; 151 1-pressing plate; 1512-guide plate; 1513-carrier plate; 152-inner cylinder; 1521-first section; 1522-second section; 1523-third section; 153-nozzle; 154-liquid supply tank; 1541-tank body; 1542-liquid pipe; 155-rectifying ring; 1551-center hole; 156-spring; 170-applicator head; 171-spherical panel; 172-plane plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0033] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0034] The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0035] Unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0037] As mentioned in the background technology, existing applicators are usually made of water-absorbing materials such as sponges. When using them, liquid needs to be adsorbed on the surface of the material and then squeezed out by pressing. When applying to the back, it is inconvenient to operate with one hand.

[0038] In addition, when applying liquid, existing applicators need to use the water absorption of the material to make the liquid adhere to the surface of the material. When applying, the liquid is squeezed out by pressing. However, after pressing, the applicator will continue to absorb the liquid, which will reduce the application efficiency and the liquid cannot be fully utilized. Water-absorbent materials such as sponges will also increase the difficulty of cleaning after absorbing liquid. After long-term use, they will inevitably be contaminated and hardened and cannot be used.

[0039] Please refer to Figure 1-Figure 7The applicator provided in the embodiment of the utility model can solve the above-mentioned problems, which will be described in detail below.

[0040] refer to Figure 1-Figure 3 The applicator 100 includes: a connecting member 110, a driving member 130, a spraying member 150 and an applicator head 170; wherein the driving member 130, the spraying member 150 and the applicator head 170 are all installed on the connecting member 110, and the driving member 130 is used to move relative to the connecting member 110 to drive the spraying member 150 to spray liquid.

[0041] During use, the applicator 100 can drive the injection member 150 to spray liquid by operating the driving member 130, and then move the application head 170 to contact the liquid to achieve the application effect, which can also improve the convenience of one-handed operation when applying to the back.

[0042] It is worth noting that the injection member 150 has a cavity for containing liquid. The cavity can be filled with liquid in advance before the injection member 150 is installed, or the cavity can be connected to a pipeline and continuously filled with liquid through the pipeline while the injection member 150 sprays liquid.

[0043] Furthermore, because the single movement stroke of the driving member 130 is relatively fixed, the single amount of liquid sprayed by the spray member 150 is also relatively fixed, making it easier to control the amount of liquid used by the applicator 100 during use.

[0044] refer to Figure 1 and Figure 2 The application head 170 has a plane plate 172 and a spherical panel 171 that are relatively arranged. The application head 170 is rotatably connected to the connecting member 110, so that the plane plate 172 or the spherical panel 171 can be controlled to contact with the human body during the application process. The plane plate 172 has the advantages of a large contact area and high application efficiency when in contact, while the spherical panel 171 has the advantages of accurate application and high comfort when in contact. It can be selected according to the applied part and the user's personal needs.

[0045] Specifically, the flat panel 172 and the spherical panel 171 are detachably connected, specifically, they may be threaded connections or snap connections. When one of them is worn or damaged, it can be replaced separately through the detachable connection, thereby reducing the use cost.

[0046] It is worth noting that the application head 170 is rotatably connected to the shield portion 113, so that at least two slots can be set on the shield portion 113, and the inner wall of the application head 170 is provided with at least two blocks that cooperate with the slots. By making the blocks cooperate with different slots, the relative circumferential angle of the application head 170 and the shield portion 113 can be adjusted.

[0047] Furthermore, the plane plate 172 and the ball plate 171 can be made of non-absorbent materials, and the liquid is sprayed out through the spraying member 150, so there is no need to absorb the liquid for squeezing and releasing, and it can also avoid the absorption of the liquid during the application process to affect the application effect. Because the plane plate 172 and the ball plate 171 do not absorb the liquid, the application head 170 is easy to clean, and stubborn dirt will not be generated due to liquid absorption residue. Among them, the plane plate 172 and the ball plate 171 can be made of plastic or rubber, and the specific material is not limited.

[0048] Of course, the coating head 170 can also be composed of panels of other shapes, including but not limited to inclined panels, curved panels and special-shaped panels, as long as at least part of the outer wall of the coating head 170 can contact the coating area, and the specific shape of the component panels is not limited.

[0049] refer to Figure 1-Figure 3 The connecting member 110 is a detachable structure, including a handle portion 111, an extension portion 112 and a shield portion 113 installed in sequence. The handle portion 111, the extension portion 112 and the shield portion 113 are all hollow structures, and the interior thereof is convenient for accommodating the driving member 130 and the spraying member 150. The end of the shield portion 113 away from the extension portion 112 is connected to the application head 170, and the end of the handle portion 111 away from the extension portion 112 is a closed structure to avoid interference with the driving portion inside the handle portion 111. During use, the user's palm can directly hold the handle portion 111, and then use the fingers to turn the driving portion.

[0050] In this embodiment, the entire connector 110 is cylindrical, that is, the cross section of the connector 110 is circular. The outer diameter of the extension portion 112 is the smallest, and the outer diameters of the handle portion 111 and the shield portion 113 are both larger than the outer diameter of the extension portion 112; of course, the outer diameter of the handle portion 111 can be the smallest, and the outer diameter of the shield portion 113 can also be the smallest, and the outer diameter size relationship between the handle portion 111, the extension portion 112, and the shield portion 113 is not specifically limited.

[0051] Furthermore, the shape of the entire connector 110 may be a square tube, and the cross section of the connector 110 may be a triangle, rectangle, rhombus, pentagon, or other shapes. In addition, from the perspective of improving aesthetics or practicality, the cross sections of the extension portion 112, the shield portion 113, and the handle portion 111 may be inconsistent, and the orderly connection between the components may be achieved by installing a snap-fit ​​structure at the end.

[0052] In this embodiment, the shield portion 113 is in the shape of a truncated cone, and the outer diameter of the end away from the extension portion 112 is larger than the outer diameter of the end close to the extension portion 112, which can ensure that the connection between the application head 170 and the shield portion 113 has sufficient strength, thereby preventing the two from being easily bent relative to each other. Similarly, the shield portion 113 can also be in other shapes such as a truncated cone or a square tube.

[0053] refer to Figure 2 and Figure 3 The driving member 130 includes a lever 131 and a transmission rod 132 connected to each other. The lever 131 passes through the connecting member 110, and the transmission rod 132 is accommodated in the inner cavity of the connecting member 110. The end of the transmission rod 132 away from the lever 131 is connected to the injection member 150. The lever 131 is used to rotate relative to the connecting member 110 to drive the injection member 150 to move through the transmission rod 132.

[0054] Specifically, one end of the lever 131 is rotatably connected to the transmission rod 132, the other end of the lever 131 passes through the handle portion 111, and the transmission rod 132 is located inside the extension portion 112, and one end of the transmission rod 132 away from the lever 131 is connected to the pressure head 151. The handle portion 111 is provided with an extension slot 1112, which facilitates the movement of the lever 131 in the extension slot 1112. During use, the user can move the lever 131, and the rotation of the lever 131 drives the transmission rod 132 to move axially in the extension portion 112.

[0055] In addition, in order to ensure the flexible rotation of the lever 131 , the corners of the outer wall of the lever 131 may be rounded to avoid the existence of sharp edges and corners that hinder the rotation of the lever 131 .

[0056] refer to Figure 2 and Figure 5 In order to improve the rotation stability of the lever 131, the lever 131 is provided with a support hole 1311, and the connecting member 110 is provided with a pillar 1111, and the pillar 1111 is accommodated in the support hole 1311. The support 1111 and the support 1111 can be used as a fulcrum during the rotation of the lever 131, thereby preventing the lever 131 from easily changing its axial position relative to the handle 111.

[0057] In this embodiment, in order to ensure the transmission stability of the transmission rod 132, the transmission rod 132 is a cross structure, that is, the cross section of the transmission rod 132 is cross-shaped. Of course, under the premise of ensuring sufficient structural strength, the transmission rod 132 can also be cylindrical or prism-shaped, that is, the cross section of the transmission rod 132 can be circular, elliptical, prism-shaped, rectangular, triangular, pentagonal, etc., and the specific shape of the transmission rod 132 is not limited.

[0058] In addition, because the transmission rod 132 has a certain extension length, the transmission rod 132 can be assembled by splicing a plurality of sub-rods. In addition, in order to ensure the radial or circumferential position stability of the transmission rod 132, the driving member 130 further includes a guide block 133, which is mounted on the transmission rod 132 and cooperates with the connecting member 110.

[0059] In this embodiment, the cross-sectional shape of the branch hole 1311 is circular, and the corresponding pillar 1111 is also cylindrical, and the cross-sectional shape of the pillar 1111 is circular; of course, the cross-sectional shape of the branch hole 1311 and the pillar 1111 can also be other shapes such as triangle, prism, rectangle, pentagon, etc., and the specific cross-sectional shape is not limited.

[0060] In this embodiment, the number of guide blocks 133 is five, and the five guide blocks 133 are arranged at equal intervals along the axial direction of the transmission rod 132, that is, the spacing between the guide block 133 in the middle and the guide blocks 133 on both sides is equal. Of course, the number of guide blocks 133 can also be set to one, three, seven, etc. according to needs, and the specific number of guide blocks 133 is not limited.

[0061] refer to Figure 2-Figure 6 The transmission rod 132 is provided with a guide groove 1321 , and the inner wall of the connecting member 110 is provided with a limiting column 119 , and the limiting column 119 is accommodated in the guide groove 1321 .

[0062] Specifically, the handle portion 111 and the shield portion 113 are both provided with a limiting column 119. The guide groove 1321 is in the shape of an elongated strip, and one guide groove 1321 corresponds to two limiting columns 119, and the distance between the two limiting columns 119 is less than the elongated length of the guide groove 1321. Through the cooperation between the guide groove 1321 and the limiting column 119, the axial movement of the transmission rod 132 can be limited, so as to avoid the axial movement distance of the transmission rod 132 being too long and damaging the injection member 150.

[0063] In this embodiment, guide grooves 1321 are provided at both ends of the transmission rod 132; of course, the number of the guide grooves 1321 on the transmission rod 132 can also be one, three, five, etc., and the specific number of the guide grooves 1321 is not limited.

[0064] refer to Figure 3 and Figure 4 The injection member 150 includes a pressure head 151, an inner cylinder 152 and a nozzle 153. The pressure head 151 and the inner cylinder 152 are accommodated in the inner cavity of the connecting member 110. The pressure head 151 is connected to the driving member 130 and cooperates with the inner cylinder 152. The nozzle 153 is connected to the inner cylinder 152. The inner cylinder 152 is used to accommodate liquid. The pressure head 151 is used to move relative to the inner cylinder 152 to drive the nozzle 153 to spray liquid.

[0065] Specifically, the pressure head 151 and the inner cylinder 152 are both accommodated in the shield part 113, and the nozzle 153 penetrates the side wall of the shield part 113 to perform liquid spraying operation. The end of the pressure head 151 away from the inner cylinder 152 is connected to the transmission rod 132. The transmission rod 132 moves circumferentially under the drive of the lever 131, and drives the pressure head 151 to move axially at the same time. The inner cylinder 152 contains liquid, and under the axial movement and squeezing action of the pressure head 151, the liquid in the inner cylinder 152 will be sprayed out through the nozzle 153.

[0066] It is worth noting that in order to ensure that the liquid sprayed from the nozzle 153 can smoothly contact the coating head 170, the nozzle 153 can be tilted, and the output end of the nozzle 153 is closer to the coating head 170 than the input end. The tilt angle of the nozzle 153 relative to the inner cylinder 152 can be 15°, 30°, 45°, 60°, 75°, etc., and the specific angle is not limited.

[0067] Of course, while ensuring that the coating head 170 can effectively contact the liquid, the nozzle 153 can be set vertically relative to the inner cylinder 152, or the nozzle 153 can be tilted so that the output end of the nozzle 153 is away from the coating head 170 relative to the input end.

[0068] It is worth noting that in order to improve the protection of the nozzle 153, the output end of the nozzle 153 can be flush with the barrel wall of the connecting piece 110, that is, the output end of the nozzle 153 is flush with the side wall of the protective cover part 113, so as to avoid the output end of the nozzle 153 being located outside the protective cover part 113 and being easily hit, causing damage to the nozzle 153.

[0069] It is worth noting that in order to improve the working coordination between the injection member 150 and the coating head 170 , the nozzle 153 may also be installed on the coating head 170 , and the coating head 170 may immediately perform the coating operation while the nozzle 153 sprays the liquid.

[0070] refer to Figure 4 In order to ensure the high efficiency of the nozzle 153 in spraying liquid, the number of nozzles 153 can be multiple, and the multiple nozzles 153 can be located on one side of the coating head 170, or the multiple nozzles 153 can be arranged around the coating head 170. The output end of the nozzle 153 is provided with multiple spray holes, which can make the liquid be divided into multiple thin streams and sprayed out from the spray holes to avoid excessive liquid spraying and waste.

[0071] In this embodiment, the output end of the nozzle 153 has five spray holes, and the five spray holes are consistent in size and shape and are all circular; of course, the number of spray holes can also be one, three, eight, ten, etc., and the setting shape can be a triangle, rectangle, rhombus, pentagon, etc., and the specific setting number and setting shape of the spray holes are not limited.

[0072] refer to Figure 3 and Figure 4 The inner cylinder 152 includes a first section 1521, a second section 1522 and a third section 1523 which are connected in sequence. The inner wall of the first section 1521 cooperates with the pressure head 151, and the third section 1523 is connected to the nozzle 153. The inner diameters of the first section 1521 and the third section 1523 are both larger than the inner diameter of the second section 1522.

[0073] In this embodiment, the inner cylinder 152 is stepped, and the inner diameter and outer diameter of the second section 1522 are smaller than the inner diameter and outer diameter of the first section 1521 and the third section 1523. By setting the stepped shape, the force on the inner cylinder 152 can be more stable; of course, the inner diameter and outer diameter of the first section 1521 can be minimized, or the inner diameter and outer diameter of the third section 1523 can be minimized. There is no limitation on the specific stepped shape of the inner cylinder 152.

[0074] It is worth noting that the end surface of the second section 1522 is against the pressure head 151, and the second section 1522 can play an axial limiting role on the pressure head 151 to avoid the pressure head 151 and the first section 1521 being too deeply matched and damaging the inner cylinder 152.

[0075] Of course, in order to reduce the difficulty of processing the inner cylinder 152, the inner cylinder 152 can also be a straight cylinder. The inner cylinder 152 can be cylindrical or square, that is, the cross-sectional shape of the inner cylinder 152 can be circular, elliptical, rectangular, prismatic, triangular, pentagonal, etc. The specific shape and cross-sectional shape of the inner cylinder 152 are not limited.

[0076] refer to Figure 3 In order to improve the convenience of liquid supply, the injection member 150 also includes a liquid supply tank 154, which is connected to the inner cylinder 152. The liquid supply tank 154 can be arranged adjacent to the inner cylinder 152, or there can be a certain distance between the liquid supply tank 154 and the inner cylinder 152; the liquid supply tank 154 can be located on the inner side of the connecting member 110, or it can be located on the outer side of the connecting member 110.

[0077] In this embodiment, the liquid supply tank 154 includes a tank body 1541 and a liquid tube 1542. The tank body 1541 is accommodated in the inner cavity of the applicator head 170, and the liquid tube 1542 is connected between the tank body 1541 and the inner cylinder 152. By accommodating the tank body 1541 in the applicator head 170, the tank body 1541 can be shielded and protected by the applicator head 170, and the occupied space of the overall applicator 100 will not be increased.

[0078] Specifically, part of the outer wall of the tank body 1541 can be bonded to the inner wall of the application head 170, specifically, it can be bonded to at least one of the flat plate 172 and the spherical plate 171; a slot can be installed on the inner wall of the application head 170, and then the tank body 1541 can be accommodated in the slot for positioning.

[0079] Furthermore, a portion of the liquid tube 1542 connected to the tank body 1541 is also accommodated in the applicator 100, and a portion of the liquid tube 1542 connected to the inner cylinder 152 is accommodated in the shield portion 113, which also prevents the liquid tube 1542 from being exposed to the outside and easily damaged by impact. In addition, the liquid tube 1542 is bent, and the bend of the liquid tube 1542 is rounded to avoid the angle being too large to affect the liquid flow rate and flow.

[0080] Of course, the tank body 1541 can also be installed inside the connector 110, specifically on the inner side of the handle portion 111, the extension portion 112, or the shield portion 113, or it can be installed on the outer side of the connector 110 or the applicator head 170, and its specific installation position is not limited.

[0081] refer to Figure 4 and Figure 7 The injection member 150 further includes a rectifying ring 155, which is installed in the inner cavity of the inner cylinder 152; specifically, the rectifying ring 155 is installed in the third section 1523. The rectifying ring 155 is provided with a central hole 1551, through which liquid can flow. In this embodiment, the rectifying ring 155 is in a truncated cone shape, and its large diameter end is closer to the second section 1522 than the small diameter section.

[0082] It is worth noting that the rectifying ring 155 and the third section 1523 can be interference fit or threaded connection, and the specific connection method between the two is not limited.

[0083] refer to Figure 3 and Figure 4 The injection member 150 also includes a spring 156, which is installed in the inner cavity of the inner cylinder 152. The two ends of the spring 156 are respectively connected to the straightening ring 155 and the pressure head 151. By setting the spring 156, on the one hand, the relative distance between the pressure head 151 and the straightening ring 155 can be limited to avoid the distance between the two being too small or too large; on the other hand, the spring 156 can apply an elastic tension or elastic pulling force to the pressure head 151, so that the kinetic energy of the pressure head 151 will gradually decrease in the process of moving away from the straightening ring 155, and the kinetic energy of the pressure head 151 will gradually decrease in the process of approaching the straightening ring 155.

[0084] In addition, when the user pulls the lever 131, the transmission rod 132 can drive the pressure head 151 to move away from the synchronous tension spring 156 of the rectification ring 155, so that negative pressure is formed in the inner cylinder 152, and liquid is sucked from the tank body 1541 into the inner cylinder 152 through the liquid pipe 1542; after the user disengages from the lever 131, the spring 156 can drive the pressure head 151 to move closer to the rectification ring 155 through its own elastic force, so as to squeeze the inner cylinder 152, so that the liquid in the inner cylinder 152 is sprayed out through the nozzle 153.

[0085] refer to Figure 3 and Figure 4 The pressure head 151 includes a pressure plate 1511, a guide plate 1512 and a carrier plate 1513 which are connected in sequence. The pressure plate 1511 cooperates with the inner cylinder 152, and the carrier plate 1513 is connected to the driving member 130. Specifically, the pressure plate 1511 cooperates with the first section 1521, and the carrier plate 1513 is connected to the transmission rod 132. By arranging the guide plate 1512 between the pressure plate 1511 and the carrier plate 1513, it is avoided that the pressure head 151 is set as a solid structure, thereby reducing the material consumption while ensuring the strength, thereby reducing the production cost.

[0086] refer to Figure 3 and Figure 4 The end surface of the carrier plate 1513 abuts against the end surface of the inner cylinder 152; specifically, the end surface of the carrier plate 1513 abuts against the end surface of the first section 1521, and the axial movement of the pressure head 151 can be limited by the cooperation between the end surfaces of the carrier plate 1513 and the first section 1521.

[0087] In this embodiment, the pressing plate 1511 and the carrier plate 1513 are both circular plate structures, and the thickness of the pressing plate 1511 is greater than the thickness of the carrier plate 1513. Of course, the thickness of the pressing plate 1511 can also be less than or equal to the thickness of the carrier plate 1513 while ensuring the structural strength.

[0088] refer to Figure 4 , the guide plate 1512 is a bifurcated structure; specifically, the guide plate 1512 is a cross structure, that is, the cross section of the guide plate 1512 is cross-shaped. Of course, under the premise of ensuring sufficient structural strength, the guide plate 1512 can also be cylindrical or prism-shaped, that is, the cross section of the guide plate 1512 can be circular, elliptical, prism-shaped, rectangular, triangular, pentagonal, etc., and the specific shape of the guide plate 1512 is not limited.

[0089] In addition, the guide plate 1512 includes a plurality of sub-plate bodies, and the width of each sub-plate body at one end close to the pressure plate 1511 is smaller than the width of the guide plate 1512 at one end close to the carrier plate 1513, so that the sub-plate body and the entire guide plate 1512 present a certain streamline in the axial direction. On the one hand, this is to adapt to the shapes of the pressure plate 1511 and the carrier plate 1513, and on the other hand, it is to facilitate the flow of air between the pressure plate 1511 and the carrier plate 1513 and avoid the airflow gathering between the two.

[0090] A coating method, applied to the above-mentioned applicator 100, specifically comprises:

[0091] S1: Control the driving member 130 to move and drive the injection member 150 to move;

[0092] S2: Spraying liquid through the spraying member 150;

[0093] S3: Control the movement of the coating head 170 to perform coating operation.

[0094] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An applicator, characterized in that: include: Connecting parts, driving parts, spraying parts and coating heads; The driving member, the spraying member and the coating head are all mounted on the connecting member, and the driving member is used to move relative to the connecting member to drive the spraying member to spray liquid; The injection member includes a pressure head, an inner cylinder and a nozzle, the pressure head and the inner cylinder are accommodated in the inner cavity of the connecting member, the pressure head is connected to the driving member and cooperates with the inner cylinder, the nozzle is communicated with the inner cylinder, the inner cylinder is used to accommodate liquid, and the pressure head is used to move relative to the inner cylinder to drive the nozzle to spray liquid; The applicator further comprises a liquid supply tank which is in communication with the inner cylinder.

2. The applicator according to claim 1, characterized in that The liquid supply tank comprises a tank body and a liquid pipe. The tank body is accommodated in the inner cavity of the coating head, and the liquid pipe is connected between the tank body and the inner cylinder.

3. The applicator according to claim 1, characterized in that The inner cylinder includes a first section, a second section and a third section which are connected in sequence, the inner wall of the first section cooperates with the pressure head, the third section is connected with the nozzle, and the inner diameters of the first section and the third section are both larger than the inner diameter of the second section.

4. The applicator according to claim 1, characterized in that The pressure head comprises a pressure plate, a guide plate and a carrier plate which are connected in sequence, the pressure plate cooperates with the inner cylinder, and the carrier plate is connected with the driving member.

5. The applicator according to claim 1, characterized in that The driving member includes a lever and a transmission rod connected to each other, the lever passes through the connecting member, the transmission rod is accommodated in the inner cavity of the connecting member, one end of the transmission rod away from the lever is connected to the injection member, and the lever is used to rotate relative to the connecting member to drive the injection member to move through the transmission rod.

6. The applicator according to claim 1, characterized in that The coating head comprises a plane plate and a spherical surface plate which are arranged opposite to each other, and the coating head is rotatably connected to the connecting member.

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