Spray gun with continuous pressure function

Abstract

The utility model relates to the technical field of liquid spraying devices, and discloses a spray gun with a continuous pressure function, which comprises a spray gun body, a connecting cap arranged outside the spray gun body, a liquid conveying pipe A arranged in the spray gun body, a liquid conveying pipe B arranged in the spray gun body, a continuous pressure switch mechanism arranged in the spray gun body, and a liquid conveying pipe C arranged in the spray gun body. An air supply mechanism is arranged in the spray gun body, an external air inlet pipe is arranged at the top of the spray gun body, a top column makes contact with a fixing block and drives a sliding column to slide, a wafer is made to be separated from the fixing block, liquid can circulate, a clamping block is clamped into a notch block under the action of a spring A, the pressing state is fixed, continuous manual pressing is not needed, and the labor intensity is relieved. The liquid storage bottle can be used for a long time, the one-way circulation effect is achieved through a mechanism formed by the sliding columns, liquid cannot flow back, sealing of the interior of the liquid storage bottle is guaranteed, and gas is sprayed out through the through hole in the arc block and makes contact with atomized liquid sprayed out of the nozzle for gas supplement.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid spraying devices, in particular to a spray gun with a continuous pressure function. Background Art

[0002] A spray gun is a device that uses the rapid release of liquid or compressed air as power and is usually used for spraying. Spray guns are divided into two types: general pressure type and pressurized type. There are also pressure spray guns, Carle spray guns, and automatic recovery spray guns.

[0003] According to the description of a spray gun with a continuous pressure function disclosed on the patent website (authorization announcement number: CN 216459522U), "The utility model relates to a spray gun with a continuous pressure function, including: a spray gun body, having a liquid outlet channel and a spray port connected to the liquid outlet channel; a liquid suction and supply device, which is arranged on the spray gun body and defines a liquid suction chamber together with the spray gun body; a continuous pressure assembly, including: a liquid separator head, which defines a liquid inlet chamber and a liquid spray chamber that are independent of each other in the liquid outlet channel, and the liquid separator head has a continuous pressure chamber, a liquid inlet and a valve port; a liquid separator rod, which is movably arranged in the continuous pressure chamber and has a first state of opening the valve port and a second state of closing the valve port; an elastic member, which acts on the liquid separator rod, so that the liquid separator rod always has a tendency to move toward the valve port and close the valve port. The elastic member and the liquid separator rod of the continuous pressure assembly are both arranged in the continuous pressure chamber of the liquid separator head, thereby forming a modular unit component that is convenient for assembly and disassembly, which effectively simplifies the structure of the continuous pressure assembly and improves the assembly efficiency of the spray gun product.".

[0004] In view of the above description, the applicant believes that there are the following problems:

[0005] During use, the utility model automatically closes the liquid separation rod of the continuous pressure assembly under the action of the elastic member to prevent air backflow, thereby achieving the purpose of instant sealing and instant liquid cutting off. However, in actual use, the spray gun needs to be manually pressed continuously on the wrench part when in use, which is relatively tiring when working for a long time. Secondly, when the spray gun is atomizing and spraying, the atomization will be concentrated in the middle part, and "tailing" will appear on both sides, which will make the spray effect of the spray gun poor. Therefore, it is necessary to improve a spray gun with a continuous pressure function to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a spray gun with a continuous pressure function to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spray gun with a continuous pressure function, comprising a spray gun body, a connecting cap is arranged on the outside of the spray gun body, a liquid infusion tube A is arranged on the inside of the spray gun body, a liquid infusion tube B is arranged on the inside of the spray gun body, a continuous pressure switch mechanism is arranged on the inside of the spray gun body, an air replenishing mechanism is arranged on the inside of the spray gun body, and an external air inlet pipe is arranged on the top of the spray gun body.

[0008] The continuous pressure switch mechanism includes a control component and a continuous pressure component, and the control component is arranged inside the continuous pressure component.

[0009] Preferably, the control component includes a rectangular column, which is fixedly installed on the outside of the spray gun body, a spring A is fixedly installed inside the rectangular column, a clamping block is fixedly installed on the end of the spring A away from the rectangular column, a spring B is fixedly installed inside the spray gun body, a slider A is fixedly installed on the end of the spring B away from the spray gun body, a pressing block is fixedly installed on the bottom of the slider A, a missing block is fixedly installed on the left side of the pressing block, and a linkage rod is fixedly installed on the left side of the pressing block, driving the slider B to slide inside the rectangular block.

[0010] Preferably, the linkage rod is slidably installed inside the spray gun body, the missing block is slidably installed inside the rectangular column, and the missing block is engaged with the clamping block so that the pressing state is fixed, so that it can be used for a long time without continuous pressing by manpower.

[0011] Preferably, the continuous pressure assembly includes a rectangular block, which is fixedly installed inside the spray gun body, a slider B is slidably installed inside the rectangular block, a top column is fixedly installed on the left side of the slider B, a fixed block is fixedly installed inside the rectangular block, two springs C are fixedly installed inside the fixed block, a sliding column is fixedly installed on the end of the spring C away from the fixed block, and a disc is fixedly installed on the left side of the sliding column.

[0012] Preferably, the fixed block is provided with a liquid inlet hole, the sliding column is slidably installed inside the fixed block, the infusion tube A and the infusion tube B are both fixedly installed on the rectangular block, and the slider B is fixedly installed on the linkage rod, driving the slider B to slide inside the rectangular block, driving the top column to contact the fixed block and driving the sliding column to slide inside the fixed block, so that the disc is separated from the fixed block, and the liquid in the liquid storage bottle enters the infusion tube B through the liquid inlet hole on the fixed block.

[0013] Preferably, the air supply mechanism includes a fixed column, which is fixedly installed on the right side of the spray gun body, an air supply chamber is opened inside the fixed column, a nozzle is fixedly installed on the right side of the fixed column, a transfer column is arranged inside the fixed column, two arc blocks are fixedly installed on the right side of the fixed column, a through hole is opened inside the arc block, and the gas is sprayed out through the through hole and contacts with the atomized liquid sprayed out of the nozzle, thereby avoiding the problem that the atomization will be concentrated in the middle part and the "tailing" phenomenon will appear on both sides, which will make the spray effect of the spray gun poor.

[0014] Preferably, the air replenishing chamber is opened inside the spray gun body, the fixed column, the air replenishing chamber and the transfer column are all provided with spray holes, the infusion tube B is fixedly installed on the transfer column, and the infusion tube B drives the liquid into the interior of the transfer column and sprays it out through the nozzle.

[0015] Compared with the prior art, the utility model provides a spray gun with a continuous pressure function, which has the following beneficial effects:

[0016] 1. The spray gun with continuous pressure function, the movement of the pressing block drives the linkage rod to slide, drives the slider B to slide inside the rectangular block, drives the top column to contact the fixed block and drives the sliding column to slide inside the fixed block, so that the disc is separated from the fixed block, so that the liquid in the liquid storage bottle enters the infusion tube B through the liquid inlet hole on the fixed block, the missing block slides inside the rectangular column, releases the card block, and the card block is clamped in the missing block under the action of the spring A, so that the pressing state is fixed, so that it can be used for a long time without continuous human pressure, and the card block is pulled up to release the clamping, and the spring B drives the slider A to slide, so that the movement of the pressing block drives the linkage rod to move, so that the top column is separated from the disc, so that the sliding column moves under the action of the spring C, and drives the disc to seal the liquid inlet hole. The mechanism formed by the sliding column achieves a one-way flow effect, so that the liquid will not flow back, so that when the device stops being used, the liquid in the infusion tube B will not flow back to the infusion tube A, and the sealing inside the liquid storage bottle is also guaranteed, and leakage will not occur.

[0017] 2. For the spray gun with continuous pressure function, the infusion tube B drives the liquid into the interior of the transfer column and sprays it out through the nozzle. The external air inlet pipe drives the gas into the interior of the fixed column through the air supplement chamber, and finally sprays out through the through hole on the arc block to contact the atomized liquid sprayed from the nozzle, thereby avoiding the problem that the atomization will be concentrated in the middle part and the "tailing" phenomenon will appear on both sides, which will make the spray effect of the spray gun poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the continuous pressure switch mechanism of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the card block and its connected mechanism of the utility model;

[0023] Figure 5 This is a schematic diagram of the exploded structure of the fixed block and its connected mechanism of the utility model;

[0024] Figure 6 It is a schematic diagram of the exploded cross-section structure of the gas replenishing mechanism of the utility model.

[0025] In the figure: 1. spray gun body; 2. connecting cap; 3. infusion tube A; 4. infusion tube B; 5. continuous pressure switch mechanism; 51. control component; 511. rectangular column; 512. spring A; 513. clamping block; 514. spring B; 515. slider A; 516. pressing block; 517. missing block; 518. linkage rod; 52. continuous pressure component; 521. rectangular block; 522. slider B; 523. top column; 524. fixed block; 525. spring C; 526. sliding column; 527. disc; 6. air supply mechanism; 61. fixed column; 62. air supply cavity; 63. nozzle; 64. transfer column; 65. arc block; 66. through hole; 7. external air inlet pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it 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, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Embodiment 1:

[0029] See also Figure 1-5 The utility model provides a technical solution: a spray gun with a continuous pressure function, comprising a spray gun body 1, a connecting cap 2 is arranged on the outside of the spray gun body 1, a liquid infusion tube A3 is arranged inside the spray gun body 1, a liquid infusion tube B4 is arranged inside the spray gun body 1, a continuous pressure switch mechanism 5 is arranged inside the spray gun body 1, an air replenishing mechanism 6 is arranged inside the spray gun body 1, and an external air inlet pipe 7 is arranged on the top of the spray gun body 1.

[0030] The continuous pressure switch mechanism 5 includes a control component 51 and a continuous pressure component 52 , and the control component 51 is arranged inside the continuous pressure component 52 .

[0031] Furthermore, the control component 51 includes a rectangular column 511, which is fixedly installed on the outside of the spray gun body 1, a spring A512 is fixedly installed inside the rectangular column 511, a clamping block 513 is fixedly installed on the end of the spring A512 away from the rectangular column 511, a spring B514 is fixedly installed inside the spray gun body 1, a slider A515 is fixedly installed on the end of the spring B514 away from the spray gun body 1, a pressing block 516 is fixedly installed on the bottom of the slider A515, a missing block 517 is fixedly installed on the left side of the pressing block 516, and a linkage rod 518 is fixedly installed on the left side of the pressing block 516, which drives the slider B522 to slide inside the rectangular block 521.

[0032] Furthermore, the linkage rod 518 is slidably installed inside the spray gun body 1, and the missing block 517 is slidably installed inside the rectangular column 511. The missing block 517 is engaged with the clamping block 513, so that the pressing state is fixed, so that it can be used for a long time without continuous pressing by manpower.

[0033] Furthermore, the continuous pressure assembly 52 includes a rectangular block 521, which is fixedly installed inside the spray gun body 1, a slider B522 is slidably installed inside the rectangular block 521, a top column 523 is fixedly installed on the left side of the slider B522, a fixed block 524 is fixedly installed inside the rectangular block 521, two springs C525 are fixedly installed inside the fixed block 524, a sliding column 526 is fixedly installed on the end of the spring C525 away from the fixed block 524, and a disc 527 is fixedly installed on the left side of the sliding column 526.

[0034] Furthermore, the fixed block 524 is provided with a liquid inlet hole, the sliding column 526 is slidably installed inside the fixed block 524, the infusion tube A3 and the infusion tube B4 are both fixedly installed on the rectangular block 521, and the slider B522 is fixedly installed on the linkage rod 518, driving the slider B522 to slide inside the rectangular block 521, driving the top column 523 to contact the fixed block 524 and driving the sliding column 526 to slide inside the fixed block 524, so that the disc 527 is separated from the fixed block 524, so that the liquid in the liquid storage bottle enters the infusion tube B4 through the liquid inlet hole on the fixed block 524.

[0035] Embodiment 2:

[0036] See also Figure 6 In combination with the first embodiment, it is further obtained that the air replenishing mechanism 6 includes a fixed column 61, the fixed column 61 is fixedly installed on the right side of the spray gun body 1, an air replenishing chamber 62 is opened inside the fixed column 61, a nozzle 63 is fixedly installed on the right side of the fixed column 61, a transfer column 64 is arranged inside the fixed column 61, two arc blocks 65 are fixedly installed on the right side of the fixed column 61, a through hole 66 is opened inside the arc block 65, the gas is sprayed out through the through hole 66, and contacts with the atomized liquid sprayed out of the nozzle 63, so as to avoid the problem that the atomization will be concentrated in the middle part, and the "tailing" phenomenon will appear on both sides, which will make the spray effect of the spray gun poor.

[0037] Furthermore, the air replenishing chamber 62 is opened inside the spray gun body 1, and the fixed column 61, the air replenishing chamber 62 and the transfer column 64 are all provided with spray holes. The infusion tube B4 is fixedly installed on the transfer column 64, and the infusion tube B4 drives the liquid into the interior of the transfer column 64 and is sprayed out through the nozzle 63.

[0038] During actual operation, when this device is used, the liquid storage bottle is installed with the spray gun body 1 through the connecting cap 2, the infusion tube A3 is extended into the liquid storage bottle for liquid suction, the card block 513 is pulled up, and the pressing block 516 is pressed close to the rectangular column 511, so that the linkage rod 518 slides inside the rectangular block 521, driving the slider B522 to slide inside the rectangular block 521, driving the top column 523 to contact the fixed block 524 and driving the sliding column 526 to slide inside the fixed block 524, so that the disc 527 is separated from the fixed block 524, so that the liquid in the liquid storage bottle enters the infusion tube B4 through the liquid inlet hole on the fixed block 524, and the missing block 517 slides inside the rectangular column 511, and the card block 513 is released. The card block 513 is clamped in the missing block 517 under the action of the spring A512, so that the pressing state is fixed, so that it can be used for a long time without continuous human pressure, and the card block 513 is pulled up to release the clamping, and the spring B51 The slider A515 is driven to slide, so that the push block 516 moves and the linkage rod 518 moves, so that the top column 523 is separated from the disc 527, so that the slide column 526 moves under the action of the spring C525, driving the disc 527 to seal the liquid inlet hole. The mechanism formed by the slide column 526 achieves a one-way flow effect, so that the liquid will not flow back. When the device is stopped, the liquid inside the infusion tube B4 will not flow back to the infusion tube A3, and the sealing inside the liquid storage bottle is also guaranteed to prevent leakage. The infusion tube B4 drives the liquid into the transfer column 64 and sprays out through the nozzle 63. The external air inlet pipe 7 drives the gas into the fixed column 61 through the air supplement cavity 62, and finally sprays out through the through hole 66 on the arc block 65, and contacts with the atomized liquid sprayed by the nozzle 63, so as to avoid the problem that the atomization is concentrated in the middle part, and the "tailing" phenomenon will appear on both sides, which will make the spray effect of the spray gun poor.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A spray gun with a continuous pressure function, comprising a spray gun body (1), characterized in that: The spray gun body (1) is provided with a connection cap (2) on the outside, the spray gun body (1) is provided with a liquid infusion tube A (3) on the inside, the spray gun body (1) is provided with a liquid infusion tube B (4) on the inside, the spray gun body (1) is provided with a continuous pressure switch mechanism (5) on the inside, the spray gun body (1) is provided with an air supply mechanism (6) on the inside, and an external air inlet pipe (7) is provided on the top of the spray gun body (1); The continuous pressure switch mechanism (5) comprises a control component (51) and a continuous pressure component (52), wherein the control component (51) is arranged inside the continuous pressure component (52).

2. A spray gun with continuous pressure function according to claim 1, characterized in that: The control assembly (51) comprises a rectangular column (511), wherein the rectangular column (511) is fixedly mounted on the outside of the spray gun body (1), a spring A (512) is fixedly mounted inside the rectangular column (511), a clamping block (513) is fixedly mounted on one end of the spring A (512) away from the rectangular column (511), a spring B (514) is fixedly mounted inside the spray gun body (1), a sliding block A (515) is fixedly mounted on one end of the spring B (514) away from the spray gun body (1), a pressing block (516) is fixedly mounted on the bottom of the sliding block A (515), a missing block (517) is fixedly mounted on the left side of the pressing block (516), and a linkage rod (518) is fixedly mounted on the left side of the pressing block (516).

3. A spray gun with continuous pressure function according to claim 2, characterized in that: The linkage rod (518) is slidably mounted inside the spray gun body (1), the missing block (517) is slidably mounted inside the rectangular column (511), and the missing block (517) is engaged with the clamping block (513).

4. The spray gun with continuous pressure function according to claim 1, characterized in that: The continuous pressure assembly (52) comprises a rectangular block (521), wherein the rectangular block (521) is fixedly mounted inside the spray gun body (1), a slider B (522) is slidably mounted inside the rectangular block (521), a top column (523) is fixedly mounted on the left side of the slider B (522), a fixed block (524) is fixedly mounted inside the rectangular block (521), two springs C (525) are fixedly mounted inside the fixed block (524), a sliding column (526) is fixedly mounted on one end of the spring C (525) away from the fixed block (524), and a disc (527) is fixedly mounted on the left side of the sliding column (526).

5. The spray gun with continuous pressure function according to claim 4, characterized in that: The fixed block (524) is provided with a liquid inlet hole, the sliding column (526) is slidably mounted inside the fixed block (524), the liquid infusion tube A (3) and the liquid infusion tube B (4) are both fixedly mounted on the rectangular block (521), and the sliding block B (522) is fixedly mounted on the linkage rod (518).

6. The spray gun with continuous pressure function according to claim 1, characterized in that: The air supply mechanism (6) comprises a fixed column (61), the fixed column (61) is fixedly mounted on the right side of the spray gun body (1), an air supply chamber (62) is provided inside the fixed column (61), a nozzle (63) is fixedly mounted on the right side of the fixed column (61), a transfer column (64) is provided inside the fixed column (61), two arc blocks (65) are fixedly mounted on the right side of the fixed column (61), and a through hole (66) is provided inside the arc block (65).

7. The spray gun with continuous pressure function according to claim 6, characterized in that: The air-infusing chamber (62) is provided inside the spray gun body (1); the fixed column (61), the air-infusing chamber (62) and the transfer column (64) are all provided with spray holes; the liquid infusion tube B (4) is fixedly installed on the transfer column (64).

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