Valve assembly for an aerosol can

Abstract

The utility model provides an inlet valve assembly for aerosol can relates to aerosol can processing field. Including frame, still include falling valve seat, valve outer ring, upper cover plate, inlet valve lift main shaft, inlet valve guide rod, inlet valve fixed shaft, inlet valve worm, inlet valve seat and inlet valve gear, inlet valve lift main shaft vertical setting, falling valve seat, inlet valve fixed shaft and inlet valve gear are sequentially arranged on inlet valve lift main shaft from top to bottom, falling valve seat is annular and is installed on the bearing of inlet valve lift main shaft, upper cover plate is installed on inlet valve lift main shaft, upper cover plate is connected valve outer ring, valve outer ring is located the outside of falling valve seat, upper cover plate is located the top of falling valve seat, falling valve seat, valve outer ring and upper cover plate combination is the valve operation guide rail, the utility model discloses in work, inlet valve worm rotation drives inlet valve worm gear rotation, further drives inlet valve lift main shaft up and down movement, thereby drives the up and down movement of falling valve seat, adapts to different height requirement.

Description

Technical Field

[0001] This utility model relates to the field of aerosol can processing, and in particular to an inlet valve assembly for aerosol cans. Background Technology

[0002] Aerosol cans, a widely used packaging form in modern industry, are extensively used in daily chemicals, pharmaceuticals, coatings, and other fields. Their sealing performance directly affects the storage safety and effectiveness of the contents. During the production process of aerosol cans, valves need to be installed inside the can body. However, existing valves mostly use linear transmission during the transfer process, making it inconvenient to adjust the direction; moreover, their function is limited, making lifting and adjustment difficult. Utility Model Content

[0003] To address the above problems, this utility model provides a simple and easy-to-operate inlet valve assembly for aerosol cans.

[0004] The technical solution of this utility model is as follows: an inlet valve assembly for an aerosol can, including a frame, and further including a valve seat, a valve outer ring, an upper cover plate, an inlet valve lifting main shaft, an inlet valve guide rod, an inlet valve fixing shaft, an inlet valve worm gear, an inlet valve seat, and an inlet valve gear. The valve lifting main shaft is vertically arranged, and the valve seat, valve fixing shaft and valve gear are arranged on the valve lifting main shaft from top to bottom. The lower valve seat is mounted in a ring on the bearing of the upper valve lifting shaft. The upper cover plate is mounted on the upper valve lifting shaft. The upper cover plate is connected to the outer ring of the valve. The outer ring of the valve is located outside the lower valve seat. The upper cover plate is located above the lower valve seat. The lower valve seat, the outer ring of the valve, and the upper cover plate together form a valve running guide rail. The inlet valve seat is mounted on the outside of the inlet valve fixed shaft via bearings. The inlet valve seat is mounted on the frame. The inlet valve fixed shaft has a central hole and is sleeved on the inlet valve lifting main shaft. The lower end of the valve guide rod is threadedly connected to the valve fixing shaft, and the upper end is used to insert into the hole of the valve seat. The inlet valve gear is connected to the inlet valve fixed shaft by a thread, and the inlet valve gear is located inside the frame; The bottom of the frame is provided with a support base, the valve lifting spindle extends into the support base, the support base is provided with a guide key, and the guide key engages with the keyway on the valve lifting spindle. The lower end thread of the valve lifting spindle is engaged with the internal thread of the valve worm gear, and the valve worm gear is located between the support seat and the valve gear; the valve worm is mounted on the support seat and meshes with the valve worm gear.

[0005] The valve guide rod has a pair.

[0006] It also includes an inner guide rail and an outer guide rail. The inner guide rail is arc-shaped and connected to the outer ring of the valve and is located at the outlet of the valve running guide rail. The outer guide rail is arc-shaped and connected to the outside of the inner guide rail.

[0007] In operation, the rotating inlet valve gear drives the rotating inlet valve fixed shaft, which in turn drives the rotating drop valve seat through the inlet valve guide rod. The valve enters the continuously rotating drop valve seat from the valve inlet and disengages from the drop valve seat after reaching the valve outlet. The drop valve seat is arranged in a ring shape, which facilitates the adjustment of the valve direction to adapt to different processing requirements.

[0008] The rotation of the inlet valve worm gear drives the inlet valve worm wheel to rotate, which in turn drives the inlet valve lifting main shaft to move up and down, thereby driving the lower valve seat to move up and down to adapt to different height requirements. Attached Figure Description

[0009] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In the drawings, the parts are not necessarily drawn to scale.

[0010] Figure 1 This is a structural schematic diagram of the present invention. Figure 2 yes Figure 1 Top view, Figure 3 yes Figure 2 Left view, Figure 4 This is a structural diagram of the transmission assembly. Figure 5 yes Figure 4 Top view, Figure 6 yes Figure 4 Sectional view of plane AA. Figure 7 yes Figure 4 Schematic diagram of three-dimensional structure Figure 1 , Figure 8 yes Figure 4 Schematic diagram of three-dimensional structure Figure 2 , Figure 9 This is a schematic diagram of the operation of this utility model. Figure 1 , Figure 10 This is a schematic diagram of the operation of this utility model. Figure 2 , Figure 11 This is a structural schematic diagram of the inlet valve assembly. Figure 12 yes Figure 11 Sectional view of the middle BB surface. Figure 13 yes Figure 12 A magnified view of a section at point M. Figure 14 yes Figure 11 Sectional view of the C-plane. Figure 15 yes Figure 11 A schematic diagram of the three-dimensional structure. Figure 16 yes Figure 15 A magnified view of a portion at point N. Figure 17 This is a structural diagram of a rotary lifting valve assembly. Figure 18 yes Figure 17 Sectional view of the DD plane. Figure 19 yes Figure 17 A schematic diagram of the three-dimensional structure. Figure 20 This is a structural schematic diagram of the lowering valve assembly. Figure 21 yes Figure 20 Sectional view of the EE plane. Figure 22 yes Figure 20 Top view, Figure 23 yes Figure 20 A schematic diagram of the three-dimensional structure; 1 in the diagram is the rack. 2 is the transmission component. 21 is the conveyor line, 211 is the inlet conveyor line, 212 is the outlet conveyor line, 22 is the inlet star wheel, 23 is the outlet star wheel, 24 is the guardrail guide rail one, 25 is the guide rail two, and 26 is the drive disc. 271 is the main motor reducer, 272 is the power gear, 273 is the encoder, 274 is the lifting motor reducer, 275 is the torque limiter, 276 is the main rotating sprocket, 277 is the inlet sprocket, and 278 is the outlet sprocket. 3 is the inlet valve assembly. 31 is the lower valve seat, 32 is the valve outer ring, 33 is the upper cover plate, 34 is the inner guide rail, 35 is the outer guide rail, 36 is the valve lifting spindle, 37 is the valve guide rod, 38 is the valve fixing shaft, 39 is the valve worm gear, 310 is the valve seat, 311 is the valve gear, 312 is the first guide key, 313 is the valve worm wheel, and 314 is the first support seat. 4 is the rotary lifting valve assembly. 41 is the lifting spindle, 42 is the lifting body, 420 is the vertical groove, 43 is the second support base, 44 is the fixed shaft, 45 is the rotating base, 46 is the rotating lifting gear, 47 is the rotating lifting worm gear, 48 is the guide rod, 49 is the tray turntable, 410 is the rotating lifting worm, 411 is the fixed bushing, and 412 is the second guide key. 5 is the valve assembly. 51 is the main shaft sleeve, 52 is the cylinder, 53 is the air distribution block, 54 is the stroke valve base plate, 55 is the valve plate support, 56 is the stroke valve assembly, 57 is the impact block, 58 is the support frame, and 59 is the column. 6 is the aerosol can, 61 is the can body, 62 is the valve, 621 is the valve cup, 622 is the suction tube, and 63 is the can opening. 7 is a horizontal board. Detailed Implementation

[0011] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0012] In the description of this utility model, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0013] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0014] This utility model is as follows Figure 1-23 As shown, the inlet valve assembly for aerosol cans provided by this utility model is part of a rotary valve inserter, as detailed below: The rotary valve inserter includes a frame 1, a transmission assembly 2, an inlet valve assembly 3, a rotary lifting valve assembly 4, and a lowering valve assembly 5. The transmission assembly 2, the inlet valve assembly 3, and the rotary lifting valve assembly 4 are respectively mounted on the frame 1. The transmission assembly 2 includes a conveyor line 21, an inlet star wheel 22, an outlet star wheel 23, a first guardrail guide rail 24, a second guide rail 25, and a drive disc 26. The conveyor line 21 includes an inlet conveyor line 211 and an outlet conveyor line 212. The inlet conveyor line 211, the inlet star wheel 22, the outlet star wheel 23, and the outlet conveyor line 212 are sequentially arranged above the frame 1. The inlet star wheel 22, the outlet star wheel 23, and the drive disc 26 are arranged in a triangular pattern at their centers. The first guardrail guide rail 24, the second guide rail 25, and the third guide rail 26 are arranged in a triangular pattern. 4. Connected to the guardrail bracket 213 on the side of the conveyor inlet line 2111 and the conveyor outlet line 212 facing the drive disk, the second guide rail 25 is located between the inlet star wheel 22 and the outlet star wheel 23, so that the can body 61 of the aerosol can 6 first moves from the conveyor inlet line 211 to between the inlet star wheel 22 and the first guardrail guide rail 24, then moves to between the drive disk 26 and the second guide rail 25, then moves to between the outlet star wheel 23 and the first guardrail guide rail 24, until it moves to the conveyor outlet line 212; The valve inlet assembly 3 is used to sequentially convey valve 62 to the rotary lifting valve assembly 4. The rotary lifting valve assembly 4 is used to rotate the valve 62 above the tank 61 between the drive disc 26 and the guide rail 25; The lowering valve assembly 5 is connected above the rotary lifting valve assembly 4 and is used to insert the valve 62 in the rotary lifting valve assembly 4 into the opening 63 of the aerosol can 6 between the drive disc 26 and the guide rail 25.

[0015] In operation, the aerosol can enters from the conveyor line and reaches the groove of the inlet star wheel. Since the inlet star wheel, outlet star wheel, and drive disc are of the same size (e.g., all divided into 12 equal parts), the inlet star wheel and drive disc rotate in opposite directions. The aerosol can reaches one end between guardrail guide rail one and guide rail two (i.e.,... Figure 5 At position 4), it begins to separate from the inlet star wheel, and the drive disc continues to drive the aerosol can to rotate, reaching the other end between guardrail guide rail one and guide rail two (i.e., Figure 5 After the middle position 5), it separates from the drive plate, and the can exit star wheel continues to drive the gas tank to the conveyor line to enter the next process; When the valve is running, the valve seat and the lifting body are the same size (e.g., both are divided into 12 equal parts). The valve enters from the valve inlet of the valve seat (i.e., Figure 9 At position 1), it enters the continuously rotating valve seat and reaches the valve outlet (i.e., Figure 9 After reaching position 2), the valve detaches from the valve seat and enters the vertical groove of the continuously rotating lifting body. Driven by the lifting body, the valve moves along the tracks of the inner and outer guide rails, reaching the top of the aerosol can between the drive disc and guide rail 2 (i.e.,...). Figure 10After reaching position 3), the stroke valve group in the lowering valve assembly sends a signal, the cylinder descends, and the valve enters the aerosol can along the ramp of the inner guide rail. Then the cylinder returns, and the aerosol can with the valve enters the conveyor line under the drive of the can exit star wheel.

[0016] This invention is convenient and reliable, and improves work efficiency.

[0017] Due to continuous rotation, the efficiency is high, reaching 160 cans / minute. When the valve transitions from the valve seat to the lifting body, the valve cup 621 enters the lifting body and inner guide rail, then gradually rises. The valve's suction pipe also gradually rises. Even if the suction pipe is bent, it is straightened until it reaches the vertical groove of the lifting body and the inner guide rail. During descent, the suction pipe remains between the groove of the lifting body and the inner guide rail, preventing jamming due to pipe bending, thus ensuring high machine reliability.

[0018] The valve assembly 3 includes a valve seat 31, a valve outer ring 32, an upper cover plate 33, an inner guide rail 34, an outer guide rail 35, a valve lifting spindle 36, a valve guide rod 37, a valve fixing shaft 38, a valve worm gear 39, a valve seat 310, and a valve gear 311. The valve lifting main shaft 36 is vertically arranged, and the valve seat 31, valve fixing shaft 38 and valve gear 311 are arranged on the valve lifting main shaft 36 from top to bottom. The lower valve seat 31 is mounted on the bearing of the upper valve lifting spindle 36, and the upper cover plate 33 is mounted on the upper valve lifting spindle 36. The upper cover plate 33 is connected to the valve outer ring 32. The valve outer ring 32 is located outside the lower valve seat 31, and the upper cover plate 33 is located above the lower valve seat 31. The lower valve seat 31, the valve outer ring 32, and the upper cover plate 33 are combined to form a valve running guide rail. The inner guide rail 34 is arc-shaped and connected to the outer ring 32 of the valve, and is located at the outlet of the valve running guide rail. The outer guide rail 35 is arc-shaped and connected to the outside of the inner guide rail 34, so that the valve 62 moves along the inner guide rail 34 under the action of the rotary lifting valve assembly 4. The inlet valve seat 310 is mounted on the outside of the inlet valve fixed shaft 38 via bearings. The inlet valve seat 310 is mounted on the frame 1. The inlet valve fixed shaft 38 has a central hole and is sleeved on the inlet valve lifting main shaft 36. The lower end of the valve guide rod 37 is threadedly connected to the valve fixing shaft 38, and the upper end is used to insert into the hole of the valve seat 31; there is a pair of valve guide rods 37. The valve gear 311 is connected to the valve fixing shaft 38 by a thread, and the valve gear 311 is located inside the frame 1; The bottom of the frame 1 is provided with a support base 314, and the valve lifting spindle 36 extends into the support base 314. The support base 314 is provided with a guide key 312, which cooperates with the keyway on the valve lifting spindle 36. In this way, when the valve worm gear 313 rotates, the valve lifting spindle 36 can only move up and down.

[0019] The lower end thread of the valve lifting spindle 36 is engaged with the internal thread of the valve worm gear 313. The valve worm gear 313 is located between the support seat 314 and the valve gear 311. The valve worm 39 is mounted on the support seat 314 and meshes with the valve worm gear 313.

[0020] The movement process of the inlet valve assembly is as follows: 1) The rotation of the inlet valve gear 311 drives the rotation of the inlet valve fixed shaft 38, which in turn drives the rotation of the drop valve seat 31 through the inlet valve guide rod 37; 2) The rotation of the inlet valve worm gear drives the rotation of the inlet valve worm wheel, which in turn drives the inlet valve lifting main shaft 36 to move up and down, thereby driving the lower valve seat 31 to move up and down to adapt to different height requirements; 3) Valve from Figure 14 The valve inlet enters the valve seat, the valve seat rotates, which drives the valve to rotate in the valve running guide rail composed of the valve outer ring and the upper cover plate, and exits from the valve outlet and enters the inner guide rail.

[0021] A conveyor belt can be connected to the valve inlet for easy valve transport and convenient operation.

[0022] The rotary lifting valve assembly 4 includes a lifting main shaft 41, a lifting body 42, a support base 43, a fixed shaft 44, a rotating base 45, a rotary lifting gear 46, a rotary lifting worm gear 47, a guide rod 48, a tray turntable 49, and a rotary lifting worm gear 410. The lifting main shaft 41 is vertically arranged, and the lifting body 42, the fixed shaft 44, and the rotating lifting gear 46 are arranged sequentially on the lifting main shaft 41 from top to bottom. The rotating seat 45 is mounted on the frame 1. The rotating seat 45 is connected to the outside of the fixed shaft 44 by a bearing. The fixed shaft 44 has a central hole and is sleeved on the lifting main shaft 41. The rotary lifting gear 46 is threadedly connected to the fixed shaft 44, and the rotary lifting gear 46 is used to mesh with the valve gear 311. The lower end of the guide rod 48 passes through the drive disc 26 and the turntable tray 49 in sequence to connect to the fixed shaft 44, and the upper end is used to insert into the hole of the lifting body 42; there is a pair of guide rods 48; The drive disk 26 is connected to the turntable tray 49, and the turntable tray 49 is connected to the fixed shaft 44; The lifting body 42 is mounted on the bearing of the lifting main shaft 41. The surface of the lifting body 42 is provided with several vertical grooves 420 evenly distributed on the circumference. The inner guide rail 34 is located on the outside of the lifting body 42, so that the valve 62 first rises, then moves horizontally, and then falls. The inner guide rail 34 is in a plane, with ramps at both ends and a straight section in the middle.

[0023] The bottom of the frame 1 is provided with a support base 43, and the lifting main shaft 41 extends into the support base 43. The lower end thread of the lifting spindle 41 is threaded to the rotating lifting worm gear 47. The second support base 43 is provided with a second guide key 412, which is engaged with the keyway on the lifting spindle 41. Thus, when the rotating lifting worm gear 47 rotates, the lifting spindle 41 can only move up and down.

[0024] The rotating lifting worm gear 410 is mounted on the support base 43 and meshes with the rotating lifting worm wheel 47.

[0025] The drive disc 26 is used to receive the can body 61 of the aerosol can 6, which rotates together with the lifting body 42 on the tray turntable 49.

[0026] The movement process of the rotary lifting valve assembly is as follows: 1) The rotating lifting gear 46 drives the fixed shaft 44 to rotate, which in turn drives the lifting body 42 to rotate via the guide rod 48. 2) The rotation of the rotating lifting worm gear 410 drives the rotation of the rotating lifting worm wheel 47, which in turn drives the lifting main shaft 41 to move up and down, thereby driving the lifting body 42 to move up and down.

[0027] The lowering valve assembly 5 includes a main shaft sleeve 51, a cylinder 52, an air distribution block 53, a stroke valve base plate 54, a valve plate support 55 (i.e., a support plate), a stroke valve group 56, a stop block 57, and a support frame 58. The main shaft sleeve 51 is plate-shaped and has a central hole. The lifting main shaft 41 passes through the central hole of the main shaft sleeve 51, and the main shaft sleeve 51 is connected to the lifting body 42. The stroke valve base plate 54 is connected above the main shaft sleeve 51 via the valve plate support 55; The air distribution block 53 is connected to the upper middle part of the stroke valve base plate 54 via the support frame 58. At the same time, the air distribution block 53 is connected to the bearing of the lifting main shaft 41. The stroke valve assembly 56 is evenly distributed in a ring on the stroke valve base plate 54. The cylinder 52 corresponds one-to-one with the stroke valve group 56. The cylinder 52 is connected to the main shaft sleeve 51. The upper end of the cylinder 52 passes through the stroke valve base plate 54 and is connected to the air distribution block 53 through a pipe. The impact block 57 is connected to the fixed bushing 411 on the lifting main shaft 41 and is located above the stroke valve base plate 54. The impact block 57 is used to contact the stroke valve assembly 56.

[0028] The movement of the lowering valve assembly is as follows: When the lifting body 42 rotates, it drives the main shaft sleeve 51, cylinder 52, air distribution block 53, stroke valve base plate 54, valve plate support 55, and stroke valve assembly 56 to rotate together, while the stop block 57 remains stationary. When rotated to the set position, the stroke valve in the stroke valve assembly 56 of the control cylinder hits the stop block 57 and sends a signal, controlling the corresponding cylinder to move up and down, pressing the valve at that location onto the tank opening 63.

[0029] The transmission assembly 2 also includes Main motor reducer 271, power gear 272, lifting motor reducer 274, main rotating sprocket 276, tank inlet sprocket 277, and tank outlet sprocket 278. The main motor reducer 271 is connected inside the frame 1, and the power gear 272 is connected to the output shaft of the main motor reducer 271. The power gear 272 meshes with the rotary lifting gear 46. The main rotating sprocket 276 is coaxially connected to the rotating lifting gear 46 and is located below the rotating lifting gear 46. The inlet sprocket 277 rotates synchronously with the inlet star wheel 22 via a shaft, and the outlet sprocket 278 rotates synchronously with the outlet star wheel 23 via a shaft. The main rotating sprocket 276, the inlet sprocket 277 and the outlet sprocket 278 are connected by a chain; The number of teeth on the power gear 272 is the same as that on the rotary lifting gear 46 and the valve gear 311. The number of teeth on the main rotating sprocket 276, the tank inlet sprocket 277 and the tank outlet sprocket 278 is also the same.

[0030] The lifting motor reducer 274 is connected inside the frame 1. The rotating lifting worm 410 and the valve inlet worm 39 are connected by a coupling to form a drive body. The lifting motor reducer 274 drives the drive body to move through chain transmission.

[0031] The rotational motion process is as follows: the main motor reducer 271 rotates, driving the power gear 272 to rotate. The power gear 272 drives the selective rotary lifting gear 46 to rotate, thereby driving the lifting body 42 to rotate. The rotary lifting gear 46 drives the inlet valve gear 311 to rotate, thereby driving the lower valve seat 31 to rotate. The main rotary sprocket 276 installed below the rotary lifting gear 46 drives the inlet sprocket 277 to rotate, thereby driving the inlet star wheel to rotate, and simultaneously drives the outlet sprocket 278 to rotate, thereby driving the outlet star wheel to rotate.

[0032] The lifting motion is achieved by the lifting motor reducer 274, which drives the inlet valve worm gear 39 and the rotating lifting worm gear 410 to operate synchronously, thereby controlling the synchronous up-and-down movement of the lower valve seat and the lifting body. This lifting action adapts to different height requirements.

[0033] The conveyor line 21 includes a flat-top chain conveyor belt.

[0034] It also includes a torque limiter 275, which is connected to the output shaft of the main motor reducer 271.

[0035] A torque limiter is installed to prevent accidental jamming, ensuring safety and reliability.

[0036] It also includes an encoder 273, which is connected to one end of the drive body.

[0037] The valve seat and lifting body are adjusted in height by the lifting motor reducer. The height is set by the encoder, making adjustment convenient and quick.

[0038] In this utility model, the main motor reducer 271, the lifting motor reducer 274, and the encoder 273 are respectively connected to the controller for convenient control.

[0039] The top of the valve lifting spindle 36 is provided with a horizontal plate 7, and the other end of the horizontal plate is sleeved on the column 59 at the top of the gas distribution block 53.

[0040] The horizontal plate is installed to limit the movement of the valve lifting spindle and the main lifting shaft, ensuring synchronous lifting.

[0041] Regarding the information disclosed in this case, the following points need to be clarified: (1) The accompanying drawings of the embodiments disclosed in this case only involve the structures involved in the embodiments disclosed in this case. Other structures can refer to the general design. (2) Where there is no conflict, the embodiments and features disclosed in this case can be combined with each other to obtain new embodiments; The above are merely specific embodiments disclosed in this case, but the scope of protection of this disclosure is not limited thereto. The scope of protection disclosed in this case shall be determined by the scope of protection of the claims.

Claims

1. Valve assembly for an aerosol can comprising a frame (1), characterized in that, It also includes a lower valve seat (31), a valve outer ring (32), an upper cover plate (33), an inlet valve lifting spindle (36), an inlet valve guide rod (37), an inlet valve fixing shaft (38), an inlet valve worm gear (39), an inlet valve seat (310), and an inlet valve gear (311). The valve lifting spindle (36) is vertically arranged, and the valve seat (31), valve fixing shaft (38) and valve gear (311) are arranged on the valve lifting spindle (36) from top to bottom. The valve seat (31) is mounted in a ring on the bearing of the valve lifting spindle (36). The upper cover plate (33) is mounted on the valve lifting spindle (36). The upper cover plate (33) is connected to the valve outer ring (32). The valve outer ring (32) is located outside the valve seat (31). The upper cover plate (33) is located above the valve seat (31). The valve seat (31), valve outer ring (32) and upper cover plate (33) together form a valve running guide rail. The inlet valve seat (310) is mounted on the outside of the inlet valve fixed shaft (38) via a bearing. The inlet valve seat (310) is mounted on the frame (1). The inlet valve fixed shaft (38) has a central hole and is sleeved on the inlet valve lifting main shaft (36). The lower end of the valve guide rod (37) is connected to the valve fixing shaft (38) by a thread, and the upper end is used to insert into the hole of the valve seat (31); The valve gear (311) is connected to the valve fixing shaft (38) by a thread, and the valve gear (311) is located inside the frame (1); The bottom of the frame (1) is provided with a support base (314), the valve lifting spindle (36) extends into the support base (314), the support base (314) is provided with a guide key (312), and the guide key (312) cooperates with the keyway on the valve lifting spindle (36). The lower end thread of the valve lifting spindle (36) is engaged with the internal thread of the valve worm wheel (313). The valve worm wheel (313) is located between the support seat (314) and the valve gear (311). The valve worm (39) is mounted on the support seat (314) and meshes with the valve worm wheel (313).

2. The valve assembly for an aerosol container of claim 1 wherein, The valve guide rod (37) has a pair.

3. The valve assembly for an aerosol container of claim 1 or 2, wherein, It also includes an inner guide rail (34) and an outer guide rail (35). The inner guide rail (34) is arc-shaped and connected to the outer ring (32) of the valve and is located at the outlet of the valve running guide rail. The outer guide rail (35) is arc-shaped and connected to the outside of the inner guide rail (34).

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