Spherically-sealed hand-buckled spray gun

Abstract

The utility model discloses a spherically sealed hand-buckled spray gun, which relates to the technical field of spray guns and comprises a gun body, a piston cavity and a flow guide pipe are arranged in the gun body, a sealing valve is arranged at the bottom end of the gun body, a suction pipe seat is arranged at the bottom end of the sealing valve, and a sealing sleeve is fixedly arranged at the top end of the sealing valve. According to the utility model, the sealing valve and the straw seat are arranged, the sealing valve comprises the sealing sleeve and the slot, the straw seat comprises the connecting pipe, the sealing ball is arranged between the connecting pipe and the sealing sleeve, and the sealing ball reciprocates between the connecting pipe and the sealing sleeve, so that liquid is extracted and discharged; the sealing ring is matched with the sealing ball, the sealing effect can be achieved, the sealing range of the sealing ball can be widened through the spherical structural design of the sealing ball, and therefore the sealing effect can still be guaranteed when the sealing ball is abraded, and the service life of the spray gun is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of spray guns, and particularly relates to a hand-held spray gun with spherical sealing. Background Art

[0002] A hand-held spray gun is a device that uses the rapid release of liquid or compressed air as power. The hand-held spray gun can be used for spraying various liquids in daily life. Products such as cleaning agents commonly used in daily life also use hand-held spray guns for spraying, which is convenient for the use of cleaning agents.

[0003] For example, a fully plastic recyclable hand-held spray gun with the publication number of CN215884730U. It includes a pump body, a bottle cap, a valve rod, a nozzle, and a pressing piece. Among them, the pressing piece squeezes the pump body through the valve rod, and the valve rod transfers the liquid in the pump body to the nozzle; the nozzle includes an inner plug column arranged at one end of the valve rod away from the pump body and an end cap arranged on the outer peripheral surface of the valve rod, and the end cap slides movably on the valve rod; a liquid outlet hole is formed through the outer end surface of the end cap, a contact block is arranged on the inner end surface of the end cap, an atomization channel for atomizing the liquid is formed on the contact block, and the atomization channel is communicated with the liquid outlet hole; a liquid guide groove is formed on the outer peripheral surface of the inner plug column, and the liquid guide groove is always communicated with the atomization channel. This application has the effect that the operation of switching the water spraying and atomizing states is relatively convenient.

[0004] The above technical solution uses the cooperation of the valve rod and the pump body to realize the extraction of liquid. However, during long-term use, the valve rod and the pump body are prone to wear, which may cause the spray gun to be unable to be used.

[0005] Therefore, it is necessary to invent a hand-held spray gun with spherical sealing to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a hand-held spray gun with spherical sealing to solve the problems raised in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A hand-held spray gun with spherical sealing, comprising a gun body. A piston chamber and a diversion pipe are arranged inside the gun body. A sealing valve is arranged at the bottom end of the gun body. A suction pipe seat is arranged at the bottom end of the sealing valve. The sealing valve is arranged in a boss shape, and an arc-shaped protrusion is arranged in the middle of the sealing valve. A sealing sleeve is fixedly arranged at the top end of the sealing valve. A through groove corresponding to the sealing sleeve is opened at one end of the inner side wall of the piston chamber, and a connecting sleeve is fixedly arranged at the notch of the through groove. The connecting sleeve is in interference fit with the sealing sleeve. A connecting groove is opened on one side of the connecting sleeve, and the connecting groove is communicated with the bottom end of the diversion pipe. A connecting pipe is fixedly arranged in the middle of the suction pipe seat. A slot corresponding to the connecting pipe is opened at the top end of the sealing valve. An annular rib is fixedly arranged on the inner side wall of the slot, and the annular rib is in interference fit with the top end of the outer side wall of the connecting pipe. A sealing ball is arranged inside the connecting pipe. A sealing ring is arranged around the inner side wall of the connecting pipe, and the sealing ring corresponds to the sealing ball. A liquid inlet pipe is fixedly arranged at the bottom end of the connecting pipe, and the liquid inlet pipe is arranged on the lower surface of the suction pipe seat.

[0008] Preferably, a plurality of deformation grooves are circumferentially opened on the inner side wall of the connecting sleeve. A plurality of reinforcing ribs are circumferentially arranged on the inner side wall of the sealing sleeve, and the positions of the reinforcing ribs correspond to those of the deformation grooves.

[0009] Preferably, a connecting ring is fixedly arranged at the bottom end of the gun body. A fixing ring is fixedly arranged on the outer side wall of the suction pipe seat, and the fixing ring is snap-fitted with the connecting ring.

[0010] Preferably, a sealing ring is fixedly arranged on the outer side wall of the sealing valve, and the sealing ring is arranged between the connecting ring and the suction pipe seat.

[0011] Preferably, a piston is arranged inside the piston chamber. A piston rod is fixedly arranged in the middle of the piston. One end of the piston rod is movably arranged with a wrench through a pin shaft, and the top end of the wrench is movably arranged outside the gun body through a pin shaft. A spring is arranged between the wrench and the gun body.

[0012] Preferably, a gun cover is snap-fitted on the outer side of the gun body. A threaded seat is arranged at the bottom end of the gun cover, and the threaded seat is fixedly arranged on the outer side of the suction pipe seat. A nozzle is arranged at one end of the gun cover, and the nozzle is fixedly arranged at one end of the diversion pipe.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. The utility model realizes the extraction and discharge of liquid by setting a sealing valve and a straw seat. The sealing valve includes a sealing sleeve and a slot, and the straw seat includes a connecting pipe. A sealing ball is arranged between the connecting pipe and the sealing sleeve, and the sealing ball reciprocates between the connecting pipe and the sealing sleeve to extract and discharge the liquid. By arranging a sealing ring on the inner wall of the connecting pipe, the sealing ring cooperates with the sealing ball to achieve a sealing effect. The spherical structure design of the sealing ball can increase its sealing range, so that the sealing effect can still be ensured when the sealing ball is worn, thereby improving the service life of the spray gun;

[0015] 2. The utility model is provided with a sealing valve, which is arranged at the bottom end of the gun body. A sealing sleeve is arranged at the top end of the sealing valve, and a connecting sleeve is arranged between the sealing valve and the gun body. The sealing sleeve and the connecting sleeve can deform outwards under the action of liquid pressure to discharge the liquid. During the liquid extraction process, the sealing sleeve and the connecting sleeve can seal the inside of the gun body to ensure that the liquid extraction effect is not affected by external air, thereby ensuring the liquid spraying effect of the spray gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 is an exploded view of the overall structure of the utility model.

[0018] Figure 3 is a schematic sectional view of the overall structure of the utility model.

[0019] Figure 4 is the Figure 3 schematic enlarged view of the structure at A in the utility model.

[0020] Figure 5 is a schematic bottom view of the gun body structure of the utility model.

[0021] Figure 6 is a schematic diagram of the sealing valve structure of the utility model.

[0022] Figure 7 is a schematic sectional view of the overall structure of the utility model.

[0023] In the figure: 1. Gun body; 2. Sealing valve; 3. Straw seat; 4. Sealing ball; 5. Piston; 6. Piston rod; 7. Wrench; 8. Spring; 9. Gun cover; 101. Piston chamber; 102. Through groove; 103. Connecting sleeve; 104. Connecting groove; 105. Deformation groove; 106. Connecting ring; 11. Diversion pipe; 201. Arc-shaped protrusion; 202. Sealing sleeve; 203. Slot; 204. Reinforcing rib; 205. Sealing ring; 206. Annular rib; 301. Fixed ring; 302. Connecting pipe; 303. Sealing ring; 304. Liquid inlet pipe; 901. Threaded seat; 902. Nozzle. Detailed implementation mode

[0024] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0025] The present invention provides a hand-held spray gun with spherical sealing as shown in Figure 1-7 including a gun body 1. A piston chamber 101 and a diversion pipe 11 are arranged inside the gun body 1. A sealing valve 2 is arranged at the bottom end of the gun body 1, and a suction pipe seat 3 is arranged at the bottom end of the sealing valve 2. The sealing valve 2 is arranged in a boss-shaped structure, and an arc-shaped protrusion 201 is arranged in the middle of the sealing valve 2. The arrangement of the arc-shaped protrusion 201 enables the sealing valve 2 to deform to a certain extent and quickly reset after deformation;

[0026] Specifically, a sealing sleeve 202 is fixedly arranged at the top end of the sealing valve 2. A through groove 102 corresponding to the sealing sleeve 202 is opened at one end of the inner side wall of the piston chamber 101, and a connecting sleeve 103 is fixedly arranged at the notch of the through groove 102. The connecting sleeve 103 is in interference connection with the sealing sleeve 202, and the connecting sleeve 103 and the sealing sleeve 202 can be quickly separated to facilitate the replacement and maintenance of the sealing ball 4;

[0027] More specifically, a connecting groove 104 is opened on one side of the connecting sleeve 103, and the connecting groove 104 is communicated with the bottom end of the diversion pipe 11. A connecting pipe 302 is fixedly arranged in the middle of the suction pipe seat 3. A slot 203 corresponding to the connecting pipe 302 is opened at the top end of the sealing valve 2. An annular rib 206 is fixedly arranged on the inner side wall of the slot 203, and the annular rib 206 is in interference connection with the outer side wall top end of the connecting pipe 302. The arrangement of the annular rib 206 can improve the sealing effect between the connecting pipe 302 and the slot 203. A sealing ball 4 is arranged inside the connecting pipe 302. A sealing ring 303 is arranged around the inner side wall of the connecting pipe 302, and the sealing ring 303 corresponds to the sealing ball 4. A liquid inlet pipe 304 is fixedly arranged at the bottom end of the connecting pipe 302, and the liquid inlet pipe 304 is arranged on the lower surface of the suction pipe seat 3. The liquid inlet pipe 304 is used to extract the material in the material bin;

[0028] Furthermore, a plurality of deformation grooves 105 are arranged around the inner side wall of the connecting sleeve 103, and a plurality of reinforcing ribs 204 are arranged around the inner side wall of the sealing sleeve 202, and the reinforcing ribs 204 correspond to the positions of the deformation grooves 105. The arrangement of the reinforcing ribs 204 can limit the deformation range of the sealing sleeve 202 to prevent the sealing sleeve 202 from deforming excessively and unable to reset;

[0029] Moreover, a connecting ring 106 is fixedly arranged at the bottom end of the gun body 1, a fixing ring 301 is fixedly arranged on the outer side wall of the straw seat 3, and the fixing ring 301 is buckled and connected with the connecting ring 106. A sealing ring 205 is fixedly arranged on the outer side wall of the sealing valve 2, and the sealing ring 205 is arranged between the connecting ring 106 and the straw seat 3. The connecting ring 106 presses the sealing ring 205 above the straw seat 3 to fix the position of the sealing valve 2;

[0030] Meanwhile, a piston 5 is arranged inside the piston chamber 101. A piston rod 6 is fixedly arranged in the middle of the piston 5. One end of the piston rod 6 is movably arranged with a wrench 7 through a pin shaft, and the top end of the wrench 7 is movably arranged outside the gun body 1 through a pin shaft. A spring 8 is arranged between the wrench 7 and the gun body 1, and the arrangement of the spring 8 facilitates the reset of the wrench 7;

[0031] And, a gun cover 9 is clamped and arranged on the outer side of the gun body 1. A threaded seat 901 is arranged at the bottom end of the gun cover 9, and the threaded seat 901 is fixedly arranged on the outer side of the straw seat 3. A nozzle 902 is arranged at one end of the gun cover 9, and the nozzle 902 is fixedly arranged at one end of the diversion pipe 11. The nozzle 902 is used to guide the ejection of materials.

[0032] Working principle of the utility model:

[0033] When the device is in use, first press the wrench 7. The wrench 7 drives the piston 5 to move through the piston rod 6, so that the piston 5 moves inside the piston chamber 101. The air inside the piston chamber 101 is compressed. The compressed air enters between the connecting sleeve 103 and the sealing sleeve 202 through the through groove 102. At this time, the compressed air presses the sealing ball 4 tightly above the sealing ring 303 to seal the inside of the gun spray material bin. At the same time, the connecting sleeve 103 and the sealing sleeve 202 are deformed outward under the extrusion of the compressed air, so that the sealing sleeve 202 coincides with the connecting groove 104. At this time, the compressed air enters the diversion pipe 11 through the connecting groove 104 and is discharged through the nozzle 902. Then release the wrench 7. The wrench 7 resets under the action of the spring 8. The wrench 7 drives the piston 5 to move through the piston rod 6, so that a negative pressure is generated between the connecting sleeve 103 and the sealing sleeve 202. At this time, the sealing ball 4 moves upward under the action of the negative pressure. At this time, the sealing effect of the sealing ball 4 on the connecting pipe 302 is released. At this time, the materials in the gun spray material bin are extracted into the sealing sleeve 202 under the action of the negative pressure through the liquid inlet pipe 304, and then enter the piston chamber 101 through the through groove 102. When the wrench 7 is pressed again, the liquid in the piston chamber 101 is discharged through the diversion pipe 11 and the nozzle 902, and the ejection of materials can be realized.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spherical-sealed hand-held spray gun, comprising a gun body (1), characterized in that: Inside the gun body (1), there is a piston chamber (101) and a diversion pipe (11). At the bottom end of the gun body (1), there is a sealing valve (2). At the bottom end of the sealing valve (2), there is a straw seat (3). The sealing valve (2) is set in a boss shape, and there is an arc-shaped protrusion (201) in the middle of the sealing valve (2). At the top end of the sealing valve (2), there is a sealing sleeve (202) fixedly arranged. At one end of the inner side wall of the piston chamber (101), there is a through groove (102) corresponding to the sealing sleeve (202), and at the notch of the through groove (102), there is a connecting sleeve (103) fixedly arranged. The connecting sleeve (103) is in interference connection with the sealing sleeve (202). On one side of the connecting sleeve (103), there is a connecting groove (104), and the connecting groove (104) is communicated with the bottom end of the diversion pipe (11). In the middle of the straw seat (3), there is a connecting pipe (302) fixedly arranged. At the top end of the sealing valve (2), there is a slot (203) corresponding to the connecting pipe (302). On the inner side wall of the slot (203), there is an annular rib (206) fixedly arranged, and the annular rib (206) is in interference connection with the top end of the outer side wall of the connecting pipe (302). Inside the connecting pipe (302), there is a sealing ball (4). On the inner side wall of the connecting pipe (302), there is a sealing ring (303) arranged in a surrounding manner, and the sealing ring (303) corresponds to the sealing ball (4). At the bottom end of the connecting pipe (302), there is a liquid inlet pipe (304) fixedly arranged, and the liquid inlet pipe (304) is arranged on the lower surface of the straw seat (3).

2. The spherical-sealed hand-held spray gun according to claim 1, characterized in that: On the inner side wall of the connecting sleeve (103), there are a plurality of deformation grooves (105) arranged in a surrounding manner. On the inner side wall of the sealing sleeve (202), there are a plurality of reinforcing ribs (204) arranged in a surrounding manner, and the positions of the reinforcing ribs (204) correspond to those of the deformation grooves (105).

3. A spherical-sealed hand-held spray gun according to claim 1, characterized in that: At the bottom end of the gun body (1), there is a connecting ring (106) fixedly arranged. On the outer side wall of the straw seat (3), there is a fixing ring (301) fixedly arranged, and the fixing ring (301) is snap-connected with the connecting ring (106).

4. The spherical-sealed hand-held spray gun according to claim 1, characterized in that: On the outer side wall of the sealing valve (2), there is a sealing ring (205) fixedly arranged, and the sealing ring (205) is arranged between the connecting ring (106) and the straw seat (3).

5. The spherical-sealed hand-held spray gun according to claim 1, characterized in that: Inside the piston chamber (101), there is a piston (5). In the middle of the piston (5), there is a piston rod (6) fixedly arranged. At one end of the piston rod (6), there is a wrench (7) movably arranged through a pin shaft, and at the top end of the wrench (7), it is movably arranged on the outside of the gun body (1) through a pin shaft. Between the wrench (7) and the gun body (1), there is a spring (8).

6. The spherical-sealed hand-held spray gun according to claim 5, characterized in that: On the outside of the gun body (1), there is a gun cover (9) snap-connected. At the bottom end of the gun cover (9), there is a threaded seat (901), and the threaded seat (901) is fixedly arranged on the outside of the straw seat (3). At one end of the gun cover (9), there is a nozzle (902), and the nozzle (902) is fixedly arranged at one end of the diversion pipe (11).

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