Spraying equipment and spraying process for inner cavity of electronic throttle valve

Abstract

The invention discloses electronic throttle valve inner cavity spraying equipment and a spraying process, and relates to the field of spraying equipment.The electronic throttle valve inner cavity spraying equipment comprises a reserved supply spraying supply assembly and a spraying end head assembly, the spraying end head assembly is installed at the lower end of the reserved supply spraying supply assembly, and spraying treatment is conducted on an electronic throttle valve inner cavity through the spraying end head assembly; a built-in conical part is fixedly connected to the lower end of the interior of the spraying end head assembly, a reserved through hole is formed in the lower end of the outer side of the spraying end head assembly, and a movable guide part is installed on the inner side of the spraying end head assembly in a nested mode. According to the spraying equipment and the spraying process for the inner cavity of the electronic throttle valve, in the spraying process of the inner cavity of the electronic throttle valve, multi-direction rotation is conducted in a self-adaptive mode, uniform spraying work is conducted in the circular inner cavity of the electronic throttle valve, the phenomenon of uneven coating is avoided, automatic circumferential spraying treatment can be achieved in the single-time spraying work process, and the spraying efficiency is improved. Spraying materials are evenly utilized to the maximum degree, and the phenomenon of tedious waste is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of spraying equipment, in particular to an electronic throttle inner cavity spraying equipment and a spraying process. Background Art

[0002] The electronic throttle is an important control component of the automobile engine. Its quality determines the overall operating quality. Therefore, the electronic throttle needs to go through multiple steps during the processing, such as inner cavity spraying. For example, the patent with publication number CN221183327U discloses a spraying device for producing corrosion-resistant throttle valves, comprising a moving block, a rotating member is embedded and rotatably connected to the top of the moving block, a servo motor is installed in the moving block and the driving end of the servo motor is fixedly connected to the rotating member, the top of the rotating member is fixedly connected to a support column, an electric push rod is installed in the support column, the top of the electric push rod is fixedly connected to a placement plate, a nozzle is installed in the mounting hole at the top of the placement plate, the moving block is slidably connected to the bottom end of the inner wall of the box body, a clamping assembly is installed on the box body, driving the throttle valve to rotate 180 degrees, the throttle valve is clamped again by the clamping assembly, and then the throttle valve is sprayed, thereby ensuring that during the first spraying, the position blocked by the first and second clamping plates can be evenly sprayed, so that the outer surface of the throttle valve is fully sprayed; For example, a spraying device for mechanical processing disclosed in the patent with publication number CN213644677U includes a spraying chamber, a pad is provided at the bottom end of the spraying chamber, a rotating fixing assembly is provided on one side of the spraying chamber, the rotating fixing assembly includes a connecting rod, a driving motor and a clamping plate, the driving motor can drive the clamping plate to rotate relative to the connecting rod, a spraying assembly is provided at the top of the spraying chamber, the spraying assembly is provided with a paint pipe and a spray head, the spray head is connected to the paint pipe, and the spray head is located above the clamping plate. By setting the rotating fixing assembly, the rotation of the parts to be sprayed can be realized during the spraying process, so that the spray head can spray the parts more evenly, without manually changing the position of the parts, it is easy to use and has a good spraying effect; For example, a surface anticorrosive spraying device disclosed in the patent with publication number CN220879297U includes a spraying unit and a clamping unit. The spraying unit includes a protective box, a dryer is arranged inside the protective box, a controller electrically connected to the clamping unit is arranged outside the protective box, a box door is arranged on the side of the protective box, and the clamping unit includes a rotating plate rotatably connected to the upper side of the dryer, a vertical bearing plate is connected to the side of the rotating plate, a rotating disk is closely attached to the side of the bearing plate, the rotating disk rotates on the side of the bearing plate through a rotating member, a fixed clamping plate is fixedly connected to the side of the rotating disk away from the bearing plate, a first telescopic rod is fixedly connected to the side of the rotating disk, and a movable clamping plate adapted to the fixed clamping plate is fixedly connected to the telescopic end of the first telescopic rod; Most of the above-mentioned existing technologies have improved their overall structure, while the existing electronic throttle valve inner cavity spraying equipment is mostly in a fixed-angle spraying state during operation. During the spraying of the inner cavity of the electronic throttle valve, manual multi-directional rotation is required to perform uniform spraying in the circular inner cavity. The operation is cumbersome and uneven coating is prone to occur, which leads to certain limitations in use. Summary of the invention

[0003] The purpose of the present invention is to provide an electronic throttle inner cavity spraying equipment and a spraying process to solve the problem that most of the background technologies mentioned above are in a fixed-angle spraying state. During the spraying process of the inner cavity of the electronic throttle, manual multi-directional rotation is required to carry out uniform spraying in the circular inner cavity. The operation is cumbersome and uneven coating is prone to occur.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electronic throttle valve inner cavity spraying device, comprising a reserved supply spraying supply assembly and a spraying end head assembly, wherein the lower end of the reserved supply spraying supply assembly is equipped with a spraying end head assembly, and the electronic throttle valve inner cavity is sprayed by the spraying end head assembly; The inner lower end of the spray end assembly is fixedly connected with a built-in conical part, and the outer lower end of the spray end assembly is provided with a reserved through hole, the inner side of the spray end assembly is nested with a movable guide part, and the upper end of the movable guide part is fixedly connected with a return spring, and the lower end of the spray end assembly is provided with an auxiliary self-closing structure, and the supply state of the spray end assembly is adaptively adjusted through the auxiliary self-closing structure; an auxiliary guide structure is provided between the reserved supply spray supply assembly and the spray end assembly, and the spray range of the spray end assembly is adaptively movable through the auxiliary guide structure.

[0005] Furthermore, the auxiliary guide structure is provided with an abutment docking piece, and the abutment docking piece is fixedly connected to the lower end of the movable guide piece, and the abutment docking piece passes through the interior of the spray end head assembly, and the inner end of the spray end head assembly is adhesively connected with a built-in first liquid bag, and the built-in first liquid bag and the position of the abutment docking piece correspond to each other.

[0006] Furthermore, a supply elastic hose is provided on the outer side of the built-in first liquid bag, and the supply elastic hose passes through the interior of the spray end assembly, an annular guide groove is opened on the inner side of the reserved spray supply assembly, and a fixed baffle is fixedly connected to the inner side of the annular guide groove, and the inner side of the fixed baffle is adhesively connected to the built-in second liquid bag, and a docking guide plate is docked on the outer side of the built-in second liquid bag, and the docking guide plate and the upper end of the spray end assembly are docked with each other.

[0007] Furthermore, when the movable guide contacts the pressure of the supplied liquid, it moves downward along the internal stretching return spring of the spray head assembly, and the abutting member at the lower end of the movable guide synchronously applies pressure to the contacting built-in first liquid bag, and the built-in first liquid bag supplies the built-in second liquid bag through the supply elastic hose.

[0008] Furthermore, during the process of the built-in second liquid bag being pressurized and expanded, the spray head assembly is driven by the outer docking guide plate to form a rotating structure along the lower end of the reserved spray supply assembly, and the docking guide plate forms a circular rotation along the annular guide groove.

[0009] Furthermore, the auxiliary self-sealing structure is provided with a sealing counterweight fitting, and the sealing counterweight fitting is nested and docked in the inner bottom of the spray end head assembly, and the upper end of the sealing counterweight fitting is docked with a reserved traction rope, and the reserved traction rope passes through the inner side of the spray end head assembly.

[0010] Furthermore, a resisting docking movable piece is nested and docked inside the spraying end head assembly, and the resisting docking movable piece and the reserved traction rope are docked with each other, and the lower end positions of the resisting docking movable piece and the resisting docking piece correspond to each other.

[0011] Furthermore, when the abutment part is forced to move downward, pressure will be applied to the abutment movable piece in contact therewith, and the abutment movable piece will drive the sealing counterweight fitting part to synchronously form a nested movable structure along the lower end of the spraying end head assembly through the reserved traction rope.

[0012] An electronic throttle inner cavity spraying device is disclosed, and a spraying process of the spraying device is disclosed. The specific method steps are as follows: S1: The spraying end assembly is supplied with spraying liquid through a reserved spraying supply assembly. When the movable guide member inside the spraying end assembly contacts the pressure of the supplied liquid, the return spring is stretched and moved downward, and the contacting built-in first liquid bag is simultaneously pressurized through the abutting member at the lower end; S2: The built-in first liquid bag is pressurized to supply the inside of the built-in second liquid bag through the supply elastic hose, so that the expanded built-in second liquid bag pushes the outer docking guide plate to form a circular rotation along the annular guide groove, thereby driving the spray head assembly to form a centrifugal rotation along the lower end of the reserved spray supply assembly; S3: When the movable guide part is under pressure and drives the abutment fitting part to move downward along the inner side of the spray end head assembly, it will exert pressure on the abutment fitting movable piece in contact, so that the abutment fitting movable piece can drive the sealing counterweight fitting part to move upward along the lower end of the spray end head assembly synchronously through the reserved traction rope, thereby adaptively adjusting the sealing state of the reserved through hole at the bottom of the spray end head assembly, thereby stably performing the adaptive sealing state adjustment process.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The electronic throttle inner cavity spraying equipment and spraying process are provided with an auxiliary guide structure, through which the spraying range of the spraying end head assembly is adaptively moved. As the spraying liquid is supplied to the inside of the spraying end head assembly, the movable guide member inside thereof will be stretched to move the reset spring downward when it contacts the pressure of the supplied liquid, and the contacting built-in first liquid capsule is simultaneously pressurized through the abutting docking member at the lower end, so that the built-in first liquid capsule is pressurized to supply the inside of the built-in second liquid capsule through the supply elastic hose, and then the expanded built-in second liquid capsule pushes the outer docking guide plate to form a circular rotation along the annular guide groove, thereby driving the spraying end head assembly to form a centrifugal rotation along the lower end of the reserved supply spraying supply assembly, thereby avoiding the disadvantage of mostly fixed-angle spraying; Furthermore, during the spraying process of the inner cavity of the electronic throttle, the electronic throttle can be adaptively rotated in multiple directions, and the uniform spraying work in the circular inner cavity of the electronic throttle will not cause uneven coating. The automatic circumferential spraying process can be realized during a single spraying process, and the spray material can be used uniformly to the greatest extent without cumbersome waste. Furthermore, an auxiliary self-sealing structure is provided, through which the supply state of the spray head assembly is adaptively adjusted. When the movable guide member is pressed to drive the abutting member to move downward along the inner side of the spray head assembly, it will apply pressure to the abutting movable piece in contact, so that the abutting movable piece drives the sealing counterweight fitting member to move upward along the lower end of the spray head assembly synchronously through the reserved traction rope, thereby adaptively adjusting the sealing state of the reserved through hole at the bottom of the spray head assembly, thereby stably performing the adaptive sealing state adjustment process to avoid the presence of impurities or blockage inside the reserved through hole; Furthermore, the built-in conical part allows the spray liquid to be sprayed stably and efficiently with greater potential energy, thereby efficiently performing anti-clogging coating work and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a half-cut three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of a half-section three-dimensional structure of a spray tip assembly of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure; Figure 5 It is a schematic diagram of the three-dimensional structure of the interfering docking movable piece of the present invention; Figure 6A schematic diagram of the three-dimensional structure of a spray supply assembly reserved for the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the built-in second liquid capsule of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the annular guide groove of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the reserved through hole of the present invention.

[0015] In the figure: 1. Reserved supply spray supply component; 2. Spray end component; 3. Built-in tapered part; 4. Reserved through hole; 5. Movable guide part; 6. Resistance docking part; 7. Built-in first liquid bag; 8. Supply elastic hose; 9. Fixed baffle; 10. Built-in second liquid bag; 11. Docking guide plate; 12. Resistance docking movable sheet; 13. Reserved traction rope; 14. Sealing weight fitting part; 15. Reset spring; 16. Annular guide groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0017] Example 1: Please refer to Figure 1-9 The present invention provides the following technical solutions: an electronic throttle inner cavity spraying device and a spraying process, including a reserved supply spraying supply component 1, a spraying end head component 2, a built-in conical part 3, a reserved through hole 4, a movable guide part 5, a resistance docking part 6, a built-in first liquid capsule 7, a supply elastic hose 8, a fixed baffle 9, a built-in second liquid capsule 10, a docking guide plate 11, a resistance docking movable sheet 12, a reserved traction rope 13, a sealing counterweight fitting part 14, a reset spring 15, and an annular guide groove 16; A spray head assembly 2 is installed at the lower end of the reserved supply spray supply assembly 1, and the spray head assembly 2 is used to spray the inner cavity of the electronic throttle valve; a built-in conical part 3 is fixedly connected to the lower end of the inner part of the spray head assembly 2, and a reserved through hole 4 is opened at the lower end of the outer side of the spray head assembly 2, a movable guide 5 is nested and installed on the inner side of the spray head assembly 2, and a return spring 15 is fixedly connected to the upper end of the movable guide 5, and an auxiliary self-sealing structure is provided at the lower end of the spray head assembly 2, and the supply state of the spray head assembly 2 is adaptively adjusted through the auxiliary self-sealing structure; The auxiliary guide structure is provided with a resistance docking member 6, and the resistance docking member 6 is fixedly connected to the lower end of the movable guide member 5, and the resistance docking member 6 passes through the interior of the spray tip assembly 2. The inner end of the spray tip assembly 2 is bonded with a built-in first liquid capsule 7, and the positions of the built-in first liquid capsule 7 and the resistance docking member 6 correspond to each other. A supply elastic hose 8 is provided on the outer side of the built-in first liquid capsule 7, and the supply elastic hose 8 passes through the interior of the spray tip assembly 2. An annular guide groove 16 is opened on the inner side reserved for supplying the spray supply assembly 1, and a fixed baffle 9 is fixedly connected to the inner side of the annular guide groove 16, and a built-in second liquid capsule 10 is bonded to the inner side of the fixed baffle 9, and a docking guide plate 11 is docked to the outer side of the built-in second liquid capsule 10, and the docking guide plate 11 and the upper end of the spray tip assembly 2 are docked with each other. When the movable guide 5 contacts the pressure of the supplied liquid, it moves downward along the internal tension return spring 15 of the spray end head assembly 2, and the abutting docking member 6 at the lower end of the movable guide 5 simultaneously applies pressure to the contacted built-in first liquid capsule 7, and the built-in first liquid capsule 7 supplies the built-in second liquid capsule 10 through the supply elastic hose 8. During the process of the built-in second liquid capsule 10 being pressurized and expanded, the spray end head assembly 2 is driven by the outer docking guide plate 11 to form a rotating structure along the lower end of the reserved supply spray supply assembly 1, and the docking guide plate 11 forms a circular rotation along the annular guide groove 16. The spraying range of the spray head assembly 2 is adaptively movable through the auxiliary guiding structure. As the spray liquid is supplied to the inside of the spray head assembly 2, the movable guiding member 5 on the inside thereof will stretch the reset spring 15 and move downward when it contacts the pressure of the supplied liquid, and simultaneously apply pressure to the contacted built-in first liquid capsule 7 through the abutting docking member 6 at the lower end, so that the built-in first liquid capsule 7 is pressurized to supply the built-in second liquid capsule 10 through the supply elastic hose 8, and then the expanded built-in second liquid capsule 10 pushes the outer docking guide plate 11 to form a circular rotation along the annular guide groove 16, thereby driving the spray head assembly 2 to form a centrifugal rotation along the lower end of the reserved supply spray supply assembly 1, thereby avoiding the disadvantage of mostly fixed-angle spraying; during the spraying process of the inner cavity of the electronic throttle valve, it is adaptively rotated in multiple directions, and the uniform spraying work in the circular inner cavity of the electronic throttle valve will not cause uneven coating. Automated circular spraying processing can be achieved during a single spraying process, and the spray material can be used evenly to the greatest extent without cumbersome waste.

[0018] Embodiment 2: Based on Embodiment 1, an auxiliary guide structure is also disclosed, and its specific structure is as follows: An auxiliary guide structure is provided between the reserved supply spray supply component 1 and the spray end head component 2, and the spray range of the spray end head component 2 is adaptively moved by the auxiliary guide structure. The auxiliary self-sealing structure is provided with a sealing counterweight fitting 14, and the sealing counterweight fitting 14 is nested and docked at the inner bottom of the spray end head component 2, and the upper end of the sealing counterweight fitting 14 is docked with a reserved traction rope 13, and the reserved traction rope 13 runs through the inner side of the spray end head component 2. The inner side of the spray end head component 2 is nested and docked with a resisting docking movable piece 12, and the resisting docking movable piece 12 and the reserved traction rope 13 are docked with each other, and the lower end positions of the resisting docking movable piece 12 and the resisting docking component 6 correspond to each other. During the downward movement of the abutting docking part 6, pressure will be applied to the abutting docking movable piece 12 in contact, and the abutting docking movable piece 12 will drive the sealing counterweight fitting part 14 through the reserved traction rope 13 to form a nested movable structure along the lower end of the spraying end head assembly 2, and the supply state of the spraying end head assembly 2 will be adaptively adjusted through the auxiliary self-sealing structure. During the downward movement of the abutting docking part 6 under pressure from the movable guide part 5, pressure will be applied to the abutting docking movable piece 12 in contact, so that the abutting docking movable piece 12 will drive the sealing counterweight fitting part 14 through the reserved traction rope 13 to move upward along the lower end of the spraying end head assembly 2, and then the sealing state of the reserved through hole 4 at the bottom of the spraying end head assembly 2 will be adaptively adjusted, so as to stably perform the adaptive sealing state adjustment processing to avoid the occurrence of impurities or blockages in the reserved through hole 4; the built-in conical part 3 allows the spray liquid to be sprayed stably and efficiently with greater potential energy.

[0019] Embodiment 3: Based on Embodiment 1, a spraying process of the spraying equipment is also disclosed, and the specific method steps are as follows: S1: The interior of the spray tip assembly 2 is supplied with spray liquid through the reserved spray supply assembly 1, and when the movable guide member 5 inside thereof contacts the pressure of the supplied liquid, the return spring 15 is stretched and moved downward, and the contacting docking member 6 at the lower end is used to simultaneously apply pressure to the contacting built-in first liquid capsule 7; S2: The built-in first liquid capsule 7 is pressurized to supply the inside of the built-in second liquid capsule 10 through the supply elastic hose 8, so that the expanded built-in second liquid capsule 10 pushes the outer docking guide plate 11 to form a circular rotation along the annular guide groove 16, thereby driving the spray head assembly 2 to form a centrifugal rotation along the lower end of the reserved supply spray supply assembly 1; S3: In the process that the movable guide part 5 is pressed and drives the abutment docking part 6 to move downward along the inner side of the spray end head assembly 2, it will then exert pressure on the abutment docking movable piece 12 in contact, so that the abutment docking movable piece 12 can drive the sealing counterweight fitting part 14 to move upward along the lower end of the spray end head assembly 2 synchronously through the reserved traction rope 13, and then adaptively adjust the sealing state of the reserved through hole 4 at the bottom of the spray end head assembly 2, so as to stably perform the adaptive sealing state adjustment processing.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic throttle valve inner cavity spraying device, comprising a reserved supply spraying supply assembly (1) and a spraying end head assembly (2), wherein the spraying end head assembly (2) is installed at the lower end of the reserved supply spraying supply assembly (1), and spraying treatment is performed on the inner cavity of the electronic throttle valve through the spraying end head assembly (2); Features: The lower end of the interior of the spray head assembly (2) is fixedly connected to a built-in conical member (3), and the lower end of the outer side of the spray head assembly (2) is provided with a reserved through hole (4), a movable guide member (5) is nested and installed on the inner side of the spray head assembly (2), and a return spring (15) is fixedly connected to the upper end of the movable guide member (5), and an auxiliary self-sealing structure is provided at the lower end of the spray head assembly (2), and the supply state of the spray head assembly (2) is adaptively adjusted by the auxiliary self-sealing structure; An auxiliary guide structure is provided between the reserved supply spray supply component (1) and the spray end head component (2), and the spray range of the spray end head component (2) is adaptively adjusted by the auxiliary guide structure.

2. The electronic throttle inner cavity spraying equipment according to claim 1 is characterized in that: The auxiliary guide structure is provided with a resistance docking piece (6), and the resistance docking piece (6) is fixedly connected to the lower end of the movable guide piece (5), and the resistance docking piece (6) penetrates along the interior of the spray head assembly (2), and the inner end of the spray head assembly (2) is bonded and connected with a built-in first liquid capsule (7), and the built-in first liquid capsule (7) and the resistance docking piece (6) correspond to each other in position.

3. The electronic throttle inner cavity spraying equipment according to claim 2 is characterized in that: A supply elastic hose (8) is arranged on the outer side of the built-in first liquid capsule (7), and the supply elastic hose (8) passes through the interior of the spray tip assembly (2); an annular guide groove (16) is opened on the inner side of the reserved spray supply assembly (1), and a fixed baffle (9) is fixedly connected to the inner side of the annular guide groove (16), and a built-in second liquid capsule (10) is adhesively connected to the inner side of the fixed baffle (9); a docking guide plate (11) is docked on the outer side of the built-in second liquid capsule (10), and the docking guide plate (11) and the upper end of the spray tip assembly (2) are docked with each other.

4. The electronic throttle inner cavity spraying equipment according to claim 3 is characterized in that: When the movable guide member (5) contacts the pressure of the supplied liquid, it moves downward along the internal tension return spring (15) of the spray tip assembly (2), and the abutment member (6) at the lower end of the movable guide member (5) simultaneously applies pressure to the contacting built-in first liquid capsule (7), and the built-in first liquid capsule (7) supplies the liquid to the inside of the built-in second liquid capsule (10) through the supply elastic hose (8).

5. The electronic throttle inner cavity spraying equipment according to claim 4, characterized in that: During the process of the built-in second liquid capsule (10) expanding under pressure, the spray tip assembly (2) is driven by the outer docking guide plate (11) to form a rotating structure along the lower end of the reserved spray supply assembly (1), and the docking guide plate (11) rotates in a circle along the annular guide groove (16).

6. The electronic throttle inner cavity spraying equipment according to claim 3 is characterized in that: The auxiliary self-sealing structure is provided with a sealing counterweight fitting (14), and the sealing counterweight fitting (14) is nested and docked at the inner bottom of the spray head assembly (2), and the upper end of the sealing counterweight fitting (14) is docked with a reserved traction rope (13), and the reserved traction rope (13) passes through the inner side of the spray head assembly (2).

7. The electronic throttle inner cavity spraying equipment according to claim 6, characterized in that: A resisting docking movable piece (12) is nested and docked inside the spraying end head assembly (2), and the resisting docking movable piece (12) and the reserved traction rope (13) are docked with each other, and the lower end positions of the resisting docking movable piece (12) and the resisting docking member (6) correspond to each other.

8. The electronic throttle inner cavity spraying equipment according to claim 7, characterized in that: When the abutment member (6) is forced to move downward, pressure is applied to the abutment movable piece (12) in contact therewith, and the abutment movable piece (12) drives the sealing counterweight fitting member (14) to synchronously form a nested movable structure along the lower end of the spraying end head assembly (2) via the reserved traction rope (13).

9. The electronic throttle inner cavity spraying equipment according to claim 8, characterized in that: The spraying process of the spraying equipment is also disclosed, and the specific method steps are as follows: S1: The interior of the spray tip assembly (2) is supplied with spray liquid through a reserved spray supply assembly (1), and when the movable guide member (5) inside thereof contacts the pressure of the supplied liquid, the return spring (15) is stretched and moved downward, and the contacting docking member (6) at the lower end simultaneously applies pressure to the contacting built-in first liquid capsule (7); S2: The built-in first liquid capsule (7) is pressurized to supply liquid to the inside of the built-in second liquid capsule (10) through the supply elastic hose (8), so that the expanded built-in second liquid capsule (10) pushes the outer docking guide plate (11) to form a circular rotation along the annular guide groove (16), thereby driving the spray head assembly (2) to form a centrifugal rotation along the lower end of the reserved spray supply assembly (1); S3: When the movable guide member (5) is pressed and drives the abutment member (6) to move downward along the inner side of the spray head assembly (2), it will apply pressure to the abutment movable sheet (12) in contact, so that the abutment movable sheet (12) drives the sealing counterweight fitting member (14) to move upward along the lower end of the spray head assembly (2) through the reserved traction rope (13), thereby adaptively adjusting the sealing state of the reserved through hole (4) at the bottom of the spray head assembly (2), thereby stably performing adaptive sealing state adjustment processing.

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