Spray gun

Abstract

The utility model discloses a spray gun, which comprises a gun head and a gun body, the tail part of the gun head is provided with an insertion part, the head part of the gun body is provided with an insertion port, and the insertion part is detachably connected in the insertion port; a lock catch pin is arranged on the side wall of the inserting part; a key is arranged at the head part of the gun body, a linkage rod is arranged in the head part of the gun body, the key is in linkage connection with the linkage rod, and a lock catch position is arranged on the linkage rod; when the inserting part is inserted into the inserting opening, the lock catch pin is locked in the lock catch position; and the linkage rod can be driven to unlock the lock catch pin by pressing the key. The connecting structure of the gun body and the gun head of the spray gun is simple, so that the gun body and the gun head are very convenient to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of spray equipment, more specifically to a spray gun. Background Art

[0002] The spray gun uses the rapid release of compressed air as power to spray paint. It includes a gun body, a gun head and a trigger. The gun body and the gun head are connected by a connecting mechanism. The connection between the gun body and the gun head must ensure sufficient sealing to prevent compressed air from leaking from the connection when the spray gun is in use and affecting the spraying effect. Due to normal wear of the seals, residual paint clogging the gun head and other reasons, the spray gun needs to be maintained frequently during use, and the gun head needs to be removed from the gun body during maintenance. In order to ensure a tight connection between the gun body and the gun head, the current spray guns on the market have a very complicated connection structure, which is quite difficult to disassemble and install. Some spray guns also need to remove the trigger during disassembly, which is really inconvenient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a spray gun, the connection structure between the gun body and the gun head of the spray gun is simple, so that the disassembly and installation of the gun body and the gun head are very convenient.

[0004] The technical solution of the utility model is to provide a spray gun with the following structure, including a gun head and a gun body, wherein the tail of the gun head is provided with a plug-in portion, the head of the gun body is provided with a plug-in interface, and the plug-in portion is detachably connected in the plug-in interface; a locking pin is provided on the side wall of the plug-in portion; a button is provided on the head of the gun body, a linkage rod is provided in the head of the gun body, the button is linked to the linkage rod, and a locking position is provided on the linkage rod; when the plug-in portion is inserted into the plug-in interface, the locking pin is locked in the locking position; pressing the button can drive the linkage rod to unlock the locking pin.

[0005] After adopting the above structure, the spray gun of the utility model has the following advantages compared with the prior art:

[0006] Since a lock pin is provided on the side wall of the plug-in part of the spray gun of the utility model, a button is provided on the head of the gun body, a linkage rod is provided inside the head of the gun body, the button is linked to the linkage rod, and a lock position is provided on the linkage rod. When the plug-in part is inserted into the plug-in interface, the lock pin is locked in the lock position; pressing the button can drive the linkage rod to unlock the lock pin. The gun body and the gun head of the spray gun of the utility model have a simple connection structure and are very convenient to disassemble and assemble.

[0007] As an improvement, one end of the linkage rod is connected to the button, the other end of the linkage rod is movably connected to the plug interface, and the lock position is arranged on the other end of the linkage rod. After adopting this structure, the linkage rod structure is simple.

[0008] As an improvement, the lock position includes an unlocking channel and a locking channel, and the unlocking channel and the locking channel are interconnected; when the lock pin is located in the unlocking channel, the plug-in portion and the plug-in interface are in an unlocked state; when the lock pin is located in the locking channel, the plug-in portion and the plug-in interface are in a locked state. With this structure, the lock position has a simple structure, and locking and unlocking can be achieved by simply moving the position of the linkage rod, which is very convenient to operate.

[0009] As an improvement, the unlocking channel is a first groove arranged horizontally, and the locking channel is a second groove arranged vertically, one end of the first groove is connected to one end of the second groove and communicates with each other, and the other end of the first groove is provided with an opening and communicates with the outside. With this structure, the lock pin can be inserted into the second groove through the first groove, which has a simple structure and is easy to assemble.

[0010] As an improvement, the gun body includes an inner shell and an outer shell, the outer shell is sleeved outside the inner shell; the plug-in port is arranged in the head of the inner shell; the button is installed between the outer shell and the inner shell and is exposed outside the outer shell; the linkage rod is located outside the inner shell and the other end of the linkage rod is connected to the plug-in port. With this structure, the structure is simple and easy to assemble.

[0011] As an improvement, a slot is provided on the side wall of the inner shell, the other end of the linkage rod is inserted into the slot, a through hole is provided on the side wall of the inner shell and located in the slot, and the linkage rod is provided with the locking position at a position corresponding to the through hole; when the button is pressed, the plug-in portion can be inserted into the plug-in port and the locking pin can be inserted into the unlocking channel; when the button is popped up and the plug-in portion is inserted into the plug-in port, the locking pin is inserted into the locking channel. With this structure, the linkage rod assembly structure is reliable.

[0012] As an improvement, the end of the other end of the linkage rod is exposed outside the slot, and the end of the linkage rod exposed outside the slot is provided with a barb, and the barb is limited outside the slot. After adopting this structure, the barb has a limiting effect on the linkage rod to prevent the other end of the linkage rod from falling out of the slot.

[0013] As an improvement, the lock pin includes an elastic member and a latch, the latch is arranged on the elastic member; a pin hole is arranged on the side wall of the plug-in portion, the elastic member is arranged in the plug-in portion and the end of the latch passes through the pin hole and is exposed outside the side wall of the plug-in portion. After adopting this structure, the latch is acted upon by the elastic member, making it elastic, and the plug-in portion will not get stuck when it is plugged into the plug interface.

[0014] As an improvement, the lock pin includes an elastic member and a plug pin, the plug pin is arranged on the elastic member; a pin hole is arranged on the side wall of the plug-in portion, the elastic member is arranged in the plug-in portion and the end of the plug pin passes through the pin hole and is exposed outside the side wall of the plug-in portion. With this structure, the lock pin has a simple structure and is easy to assemble.

[0015] As an improvement, a positioning protrusion is provided on the side wall of the plug-in portion, and a positioning slot matching the positioning protrusion is provided on the inner wall of the plug-in port, and the positioning protrusion can be plugged into the positioning slot. With this structure, the gun head and the gun body are matched with high precision due to the positioning protrusion and the positioning slot.

[0016] As an improvement, the pin hole is arranged on the positioning protrusion; the bottom of the positioning slot is provided with a pin slot for the pin to pass through. With this structure, the structure is simple and compact.

[0017] As an improvement, the elastic member is a "U"-shaped spring sheet, one side of which abuts against the side wall of the flow channel tube in the gun head, and the other side of which abuts against the inner wall of the plug-in portion; the latch is arranged on the outer side wall of the other side of the spring sheet. With this structure, the assembly is simple and convenient.

[0018] As an improvement, a positioning groove is provided on the side wall of the flow channel tube, and one side of the spring piece is embedded in the positioning groove. After adopting this structure, the spring piece assembly structure is more reliable.

[0019] As an improvement, the side walls on both sides of the plug-in part are provided with locking pins, and correspondingly, the linkage rods are provided with two locking pins; the locking pins can be locked in the locking positions of the two linkage rods one by one. With this structure, the connection mechanism is more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the spray gun of the utility model.

[0021] Figure 2 It is a schematic diagram of the explosion structure of the spray gun of the utility model.

[0022] Figure 3for Figure 2 Schematic diagram of the enlarged structure of part A.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the gun head of the spray gun of the utility model.

[0024] Figure 5 The utility model is a schematic diagram of the explosion structure of the gun head of the spray gun.

[0025] Figure 6 It is a partial three-dimensional structural schematic diagram of the gun body of the spray gun of the present utility model.

[0026] Figure 7 It is a schematic diagram of a partial explosion structure of a gun body of the spray gun of the utility model.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the inner shell of the gun body of the spray gun of the present invention.

[0028] As shown in the figure: 1. gun head, 101. plug-in part, 102. flow channel, 103. positioning groove, 104. pin hole, 105. positioning protrusion, 2. gun body, 201. plug-in interface, 202. inner shell, 203. outer shell, 204. slot, 205. through hole, 206. positioning slot, 207. pin slot, 3. locking pin, 301. elastic part, 302. latch, 4. button, 5. linkage rod, 501. barb, 502. first groove, 503. second groove. DETAILED DESCRIPTION

[0029] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0030] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0031] It should also be understood that the terms “comprises,” “including,” “has,” and “contains,” when used in this specification, indicate the presence of the described features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0032] like Figures 1 to 8As shown, the present application discloses a spray gun, including a gun head 1 and a gun body 2, wherein the tail of the gun head 1 is provided with a plug-in portion 101, and the head of the gun body 2 is provided with a plug-in interface 201, and the plug-in portion 101 is detachably connected in the plug-in interface 201.

[0033] A locking pin is provided on the side wall of the plug-in portion 101. A button 4 is provided on the head of the gun body 2, and a linkage rod 5 is provided inside the head of the gun body 2. The button 4 is linked to the linkage rod 5, and a locking position is provided on the linkage rod 5. When the plug-in portion 101 is inserted into the plug-in port 201, the locking pin is locked in the locking position. Pressing the button 4 can drive the linkage rod 5 to unlock the locking pin.

[0034] The gun body 2 includes an inner shell 202 and an outer shell 203. The outer shell 203 is mounted on the outer shell 202. The plug-in port 201 is disposed in the head of the inner shell 202. The button 4 is mounted between the outer shell 203 and the inner shell 202 and is exposed outside the outer shell 203. The mounting structure of the button 4 is a prior art and will not be described in detail. The linkage rod 5 is located outside the inner shell 202. In this specific embodiment, two linkage rods 5 are provided, and the two linkage rods 5 are respectively located on both sides of the button 4.

[0035] The other end of the linkage rod 5 is connected to the insertion port 201. A slot 204 is provided on the side wall of the inner housing 202, and the other end of the linkage rod 5 is inserted into the slot 204 and the end of the other end of the linkage rod 5 is exposed outside the slot 204. The end of the linkage rod 5 exposed outside the slot 204 is provided with a barb 501, and the barb 501 is limited outside the slot 204.

[0036] A through hole 205 is provided on the side wall of the inner shell 202 and in the slot 204, and a locking position is provided at a position of the linkage rod 5 corresponding to the through hole 205. The locking position includes an unlocking channel and a locking channel, and the unlocking channel and the locking channel are connected to each other. The unlocking channel is a first groove 502 arranged horizontally, and the locking channel is a second groove 503 arranged vertically. One end of the first groove 502 is connected to one end of the second groove 503 and is connected to each other, and the other end of the first groove 502 is provided with an opening and is connected to the outside. When the button 4 is pressed, the plug-in portion 101 can be inserted into the plug-in port 201 and the locking pin can be inserted into the first groove 502; when the button 4 pops up and the plug-in portion 101 is inserted into the plug-in port 201, the locking pin is inserted into the second groove 503.

[0037] The locking pins are provided on both sides of the side wall of the plug-in part 101. The locking pins include an elastic member and a latch. The elastic member is a "U"-shaped spring sheet, one side of which abuts against the side wall of the flow tube 102 in the gun head 1, and the other side of which abuts against the inner wall of the plug-in part 101; the latch is provided on the outer side wall of the other side of the spring sheet. A positioning groove 103 is provided on the side wall of the flow tube 102, and one side of the spring sheet is embedded in the positioning groove 103.

[0038] The side wall of the plug-in portion 101 is provided with a pin hole 104, and the end of the plug pin passes through the pin hole 104 and is exposed outside the side wall of the plug-in portion 101. The side wall of the plug-in portion 101 is provided with a positioning protrusion 105, and the inner wall of the plug port 201 is provided with a positioning slot 206204 matching the positioning protrusion 105, and the positioning protrusion 105 can be plugged into the positioning slot 206204. The pin hole 104 is provided on the positioning protrusion 105; the bottom of the positioning slot 206204 is provided with a pin slot 302 for the plug pin to pass through. The through hole 205 is also provided at the bottom of the positioning slot 206204, and the plug pin can be inserted into the lock position after passing through the pin slot 302.

[0039] When the spray gun disclosed in the present application is used, the button 4 is pressed, and the first groove 502 is flush with the pin groove 302. The plug-in portion 101 is plugged into the plug-in interface 201, and the positioning protrusion 105 is plugged into the positioning slot 206204. As the plug-in portion 101 is pushed forward, the latch enters the first groove 502 through the pin groove 302. After the plug-in portion 101 is plugged into place, the button 4 is released, and the button 4 pops up, and at the same time, it drives the linkage rod 5 to move upward, so that the latch is accommodated in the second groove 503. At this time, it is in a locked state, and the plug-in portion 101 cannot be pulled out from the plug-in interface 201.

[0040] When the button 4 is pressed again, the first groove 502 is flush with the pin groove 302 again, and the state is unlocked at this time, and the plug-in portion 101 can be pulled out from the plug-in port 201 .

[0041] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A spray gun, comprising a gun head and a gun body, wherein the tail of the gun head is provided with a plug-in portion, the head of the gun body is provided with a plug-in interface, and the plug-in portion is detachably connected to the plug-in interface; characterized in that: A locking pin is provided on the side wall of the plug-in part; a button is provided on the head of the gun body, a linkage rod is provided inside the head of the gun body, the button is linked to the linkage rod, and a locking position is provided on the linkage rod; when the plug-in part is inserted into the plug-in port, the locking pin is locked in the locking position; pressing the button can drive the linkage rod to unlock the locking pin.

2. The spray gun according to claim 1, characterized in that: One end of the linkage rod is connected to the button, the other end of the linkage rod is movably connected in the plug interface, and the lock position is arranged on the other end of the linkage rod.

3. The spray gun according to claim 2, characterized in that: The locking position includes an unlocking channel and a locking channel, and the unlocking channel and the locking channel are connected to each other; when the locking pin is located in the unlocking channel, the plug-in part and the plug interface are in an unlocked state; when the locking pin is located in the locking channel, the plug-in part and the plug interface are in a locked state.

4. The spray gun according to claim 3, characterized in that: The unlocking channel is a first groove arranged horizontally, and the locking channel is a second groove arranged longitudinally. One end of the first groove is connected to one end of the second groove and communicates with each other, and the other end of the first groove is provided with an opening and communicates with the outside.

5. The spray gun according to claim 3, characterized in that: The gun body comprises an inner shell and an outer shell, wherein the outer shell is sleeved on the outside of the inner shell; the plug-in port is arranged in the head of the inner shell; the button is installed between the outer shell and the inner shell and is exposed outside the outer shell; the linkage rod is located on the outside of the inner shell and the other end of the linkage rod is connected to the plug-in port.

6. The spray gun according to claim 5, characterized in that: A slot is provided on the side wall of the inner shell, the other end of the linkage rod is inserted into the slot, a through hole is provided on the side wall of the inner shell and located in the slot, and the locking position is provided at a position of the linkage rod corresponding to the through hole; when the button is pressed, the plug-in portion can be inserted into the plug-in interface and the locking pin can be inserted into the unlocking channel; when the button pops up and the plug-in portion is inserted into the plug-in interface, the locking pin is inserted into the locking channel.

7. The spray gun according to claim 6, characterized in that: The end of the other end of the linkage rod is exposed outside the slot, and the end of the linkage rod exposed outside the slot is provided with a barb, and the barb is limited outside the slot.

8. The spray gun according to any one of claims 1 to 7, characterized in that: The locking pin comprises an elastic member and a latch, wherein the latch is arranged on the elastic member; a pin hole is arranged on the side wall of the plug-in portion, the elastic member is arranged in the plug-in portion and the end of the latch passes through the pin hole and is exposed outside the side wall of the plug-in portion.

9. The spray gun according to claim 8, characterized in that: A positioning protrusion is arranged on the side wall of the plug-in portion, and a positioning slot matching the positioning protrusion is arranged on the inner wall of the plug-in port, and the positioning protrusion can be plugged into the positioning slot.

10. The spray gun according to claim 9, characterized in that: The pin hole is arranged on the positioning protrusion; the bottom of the positioning slot is provided with a pin slot for the insertion pin to pass through.

11. The spray gun according to claim 8, characterized in that: The elastic member is a "U"-shaped spring sheet, one side of which abuts against the side wall of the flow channel tube in the gun head, and the other side of which abuts against the inner wall of the plug-in portion; the latch is arranged on the outer side wall of the other side of the spring sheet.

12. The spray gun according to claim 11, characterized in that: A positioning groove is arranged on the side wall of the flow channel tube, and one side of the spring sheet is embedded in the positioning groove.

13. The spray gun according to claim 8, characterized in that: The side walls on both sides of the plug-in part are provided with locking pins, and correspondingly, two linkage rods are provided; the locking pins can be locked in the locking positions of the two linkage rods in a one-to-one correspondence.

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