A paint spray gun

Abstract

The utility model discloses a paint spraying gun, including casing, trigger subassembly and first limit component, the front end of casing is equipped with the bayonet that can install paint can, trigger subassembly includes the trigger main part of the middle part articulates with casing, sets up the pressure station of trigger main part one end and can make the elastic link of pressure station automatic reset, one end of elastic link is fixedly connected with trigger main part, and the movable end of elastic link is stretched outside casing, through the hinge setting trigger main part in casing, sets up the pressure station corresponding with bayonet at trigger main part one end, one end of elastic link is fixedly connected with trigger main part, and the movable end of elastic link is stretched outside casing, after the paint spraying operation is completed by moving pressure station, utilizes the elastic potential energy of elastic link and resets automatically, in order to use next time, simple and convenient operation, through the unlocking or locking of the movement lock catch insert piece can be realized with the limit hook part, to limit the amplitude of pressure station swing, further improved overall service life, the utility model belongs to the field of paint spraying articles.

Description

Technical Field

[0001] This utility model belongs to the field of spray painting supplies, and more specifically relates to a spray paint gun. Background Technology

[0002] A paint spray gun is a tool used for spraying paint on surfaces and is a type of coating equipment. It works by using compressed air to atomize paint into fine droplets, which are then sprayed onto the surface of the object being coated. Compared to traditional hand painting, paint spray guns are more efficient and produce a finer, more even coating. However, existing paint spray guns, due to their complex structure, are not only inconvenient to operate but also have a high damage rate and are not economical. Therefore, there is an urgent need for a paint spray gun that is easy to operate and durable. Utility Model Content

[0003] The main purpose of this utility model is to provide a paint spray gun with a simpler structure and more convenient operation.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A paint spray gun includes a housing, a trigger assembly disposed within the housing, and a first limiting assembly for limiting the vertical swing amplitude of the pressure plate. The front end of the housing is provided with a bayonet for mounting a paint can. The trigger assembly includes a trigger body hinged to the housing at its center, a pressure plate disposed at one end of the trigger body, and an elastic rod that allows the pressure plate to automatically reset. The lower end face of the pressure plate is correspondingly disposed to the bayonet. One end of the elastic rod is fixedly connected to the trigger body, and the movable end of the elastic rod extends out of the housing. The first limiting assembly includes a limiting hook disposed on one side of the trigger body and a locking plug that can pass laterally through the limiting hook.

[0006] According to a first aspect of the present invention, the housing includes a snap-fit ​​front cover and a rear cover, the latch is disposed in a cavity at one end of the front cover, and the rear cover is provided with a pivot for insertion into the trigger body.

[0007] According to a first aspect of the present invention, the rear cover sidewall is provided with a limiting groove, and the locking plug includes a rod that can be inserted into the limiting groove at one end and a push plate provided at the other end. The inner side of the push plate is provided with a baffle, and the baffle and the push plate are respectively closely attached to the inner and outer sides of the front cover.

[0008] According to a first aspect of the present invention, the bayonet is disposed at the bottom of the cavity.

[0009] According to a first aspect of the present invention, a second limiting component is further included, which ensures that the movable end of the elastic rod is always located outside the housing. The second limiting component includes a limiting post disposed at the end of the elastic rod away from the trigger body and an opening disposed at the top of the housing through which the movable end of the elastic rod can pass. A limiting plate is disposed below the opening.

[0010] According to a first aspect of the present invention, the size of the opening is larger than the size of the movable end of the elastic rod.

[0011] According to a first aspect of the present invention, the limiting post is arranged perpendicular to the elastic rod, and the length of the limiting post is greater than the inner diameter of the opening.

[0012] According to a first aspect of the present invention, an installation gap is provided between the limiting plate and the opening, through which the elastic rod can pass.

[0013] According to a first aspect of the present invention, the width of the installation gap is greater than the diameter of the elastic rod.

[0014] According to a first aspect of the present invention, the trigger assembly further includes a handle fixedly connected to the trigger body and a pivot hole provided on the trigger body, wherein the handle is provided with a plurality of anti-slip protrusions at intervals.

[0015] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0016] This invention features a trigger body hinged within the housing, with a pressure plate corresponding to the bayonet at one end of the trigger body. One end of an elastic rod is fixedly connected to the trigger body, and the movable end of the elastic rod extends out of the housing. After the pressure plate moves down to complete the painting operation, the elastic potential energy of the elastic rod automatically resets for the next use, making operation simple and convenient. Furthermore, the movable locking plug can unlock or lock the limit hook to limit the up-and-down swing of the pressure plate, further improving the overall service life. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Appendix Figure 1 This is an overall structural diagram of one embodiment of the present utility model;

[0019] Appendix Figure 2 This is an exploded view of one embodiment of the present invention;

[0020] Appendix Figure 3 This is a top view of one embodiment of the present invention;

[0021] Appendix Figure 4 This is a structural diagram of the front cover according to one embodiment of the present utility model;

[0022] Appendix Figure 5 This is a structural diagram of a trigger assembly according to an embodiment of the present invention;

[0023] Appendix Figure 6 This is a structural diagram of a locking plug according to an embodiment of the present invention. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0029] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0030] See attached document Figure 1 To be continued Figure 6 As shown, the housing 1, the trigger assembly 2 disposed within the housing 1, the first limiting assembly 3 for limiting the vertical swing amplitude of the pressure table 22, and the second limiting assembly for ensuring that the movable end of the elastic rod 23 is always outside the housing 1.

[0031] In one embodiment of this utility model, the housing 1 includes a snap-fit ​​front cover 12 and a rear cover 13. The front end of the housing 1 is provided with a bayonet 11 for mounting a paint can. The bayonet 11 is located at the bottom of the cavity at one end of the front cover 12 to clamp the top opening of the paint can. The rear cover 13 is provided with a rotating shaft 14 for inserting the trigger body 21. The rotating shaft 14 is used to position the trigger assembly 2 so that it rotates along a fixed trajectory. The front cover 12 has two positioning holes on the left and right sides, which match the positioning pins on the rear cover 13 to complete the installation and positioning.

[0032] In one embodiment of this utility model, the first limiting component 3 includes a limiting hook 31 provided on one side of the trigger body 21 and a locking plug that can pass laterally through the limiting hook 31. The locking plug includes a rod 321 that can be inserted into the limiting groove 131 at one end and a push plate 322 provided at the other end. A baffle 323 is provided on the inner side of the push plate 322. The baffle 323 and the push plate 322 are respectively closely attached to the inner and outer sides of the front cover 12. That is, a groove for locking the wall thickness of the front cover 12 is formed between the baffle 323 and the push plate 322 to prevent it from loosening or falling off. The locking hole at the upper rear end of the trigger body 21 passing through the front cover 12 and the limiting hook 31 at the rear end of the trigger body 21 cooperate with each other.

[0033] In one embodiment of this utility model, the side wall of the rear cover 13 is provided with a limiting groove 131, the locking plug passes through the hole and cooperates with the trigger body 21, and the plug rod 321 slides left and right in the limiting groove 131 to achieve the effect of locking and releasing the trigger body 21. The limiting groove 131 matches the plug rod 321 of the locking plug, and the locking plug is locked when it is inserted into the limiting groove 131.

[0034] In one embodiment of this utility model, the trigger assembly 2 includes a trigger body 21 hinged to the housing 1 in the middle, a pressure plate 22 provided at one end of the trigger body 21, an elastic rod 23 that can automatically reset the pressure plate 22, a handle 24 fixedly connected to the trigger body 21, and a pivot hole 25 provided on the trigger body 21. The handle 24 is provided with a plurality of anti-slip protrusions 241 spaced apart. The lower end face of the pressure plate 22 is correspondingly provided with the bayonet 11. The elastic rod 23 and the trigger body 21 are an integral component. The elastic rod 23 and the trigger body 21 can be made of plastic material. The movable end of the elastic rod 23 always extends out of the outer side of the housing 1.

[0035] Therefore, when the handle 24 is pulled, the elastic rod 23 deforms and becomes elastic. After the handle 24 is released, the handle 24 rebounds and resets under the action of the elastic rod 23, and then the work is completed by pressing the hand spray paint can by the pressure table 22 moving down.

[0036] In one embodiment of this utility model, the second limiting component includes a limiting post 51 provided at the end of the elastic rod 23 away from the trigger body 21, an opening 52 provided at the top of the housing 1 through which the movable end of the elastic rod 23 can pass, and a limiting plate 53. The opening 52 is located at the joint between the front cover 12 and the rear cover 13, and the limiting plate 53 is located below the opening 52. An installation gap is provided between the limiting plate 53 and the opening 52 for the elastic rod 23 to pass through. The width of the installation gap is greater than the diameter of the elastic rod 23, and the size of the opening 52 is greater than the size of the movable end of the elastic rod 23. Thus, when the handle 24 is pulled, the elastic rod 23 deforms and becomes elastic. After the handle 24 is released, it returns to its original position under the action of the rebound force of the elastic rod 23, ensuring that the movable end of the elastic rod 23 is always outside the housing 1.

[0037] In one embodiment of this utility model, the limiting post 51 is set perpendicular to the elastic rod 23. The length of the limiting post 51 is greater than the inner diameter of the opening 52. So when the handle 24 is pulled to a certain extent, after the elastic rod 23 is deformed, the limiting post 51 will limit the maximum deformation of the elastic rod 23, preventing the movable end of the elastic rod 23 from retracting into the housing 1 due to excessive pulling of the handle 24, which would affect the next use.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A paint sprayer characterized by, include: The housing (1) has a bayonet (11) at its front end for mounting a paint can; A trigger assembly (2) is disposed inside the housing (1). The trigger assembly (2) includes a trigger body (21) hinged to the housing (1) in the middle, a pressure plate (22) disposed at one end of the trigger body (21), and an elastic rod (23) that can cause the pressure plate (22) to automatically reset. The lower end face of the pressure plate (22) is correspondingly disposed to the bayonet (11). One end of the elastic rod (23) is fixedly connected to the trigger body (21), and the movable end of the elastic rod (23) extends out of the housing (1). A first limiting component (3) for limiting the up-and-down swing amplitude of the pressure table (22) includes a limiting hook (31) provided on one side of the trigger body (21) and a locking plug that can pass laterally through the limiting hook (31).

2. The paint spray gun according to claim 1, characterized in that: The housing (1) includes a snap-fit ​​front cover (12) and a rear cover (13). The bayonet (11) is located in the cavity at one end of the front cover (12). The rear cover (13) has a pivot (14) that can be inserted into the trigger body (21).

3. The paint spray gun according to claim 2, characterized in that: The rear cover (13) has a limiting groove (131) on its side wall. The locking plug includes a rod (321) that can be inserted into the limiting groove (131) at one end and a push plate (322) at the other end. The inner side of the push plate (322) is provided with a baffle (323). The baffle (323) and the push plate (322) are respectively closely attached to the inner and outer sides of the front cover (12).

4. The paint spray gun according to claim 2, characterized in that: The bayonet (11) is located at the bottom of the cavity.

5. The paint spray gun according to claim 1, characterized in that: It also includes a second limiting component that ensures the movable end of the elastic rod (23) is always outside the housing (1). The second limiting component includes a limiting post (51) provided at the end of the elastic rod (23) away from the trigger body (21) and an opening (52) provided at the top of the housing (1) through which the movable end of the elastic rod (23) can pass. A limiting plate (53) is provided below the opening (52).

6. The paint spray gun according to claim 5, characterized in that: The size of the opening (52) is larger than the size of the movable end of the elastic rod (23).

7. The paint spray gun according to claim 5, characterized in that: The limiting post (51) is set perpendicular to the elastic rod (23), and the length of the limiting post (51) is greater than the inner diameter of the opening (52).

8. The paint spray gun according to claim 5, characterized in that: An installation gap is provided between the limiting plate (53) and the opening (52) for the elastic rod (23) to pass through.

9. The paint spray gun according to claim 8, characterized in that: The width of the installation gap is greater than the diameter of the elastic rod (23).

10. The paint spray gun according to claim 1, characterized in that: The trigger assembly (2) also includes a handle (24) fixedly connected to the trigger body (21) and a pivot hole (25) provided on the trigger body (21). The handle (24) is provided with a plurality of anti-slip protrusions (241) spaced apart.

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