inflation metering structure

Abstract

This utility model discloses an inflation metering structure, including a filling cylinder. An upper cylinder cover and an adjusting cylinder sleeve are respectively installed at the upper and lower ends of the filling cylinder. An inflation cylinder is installed at the upper end of the upper cylinder cover. The upper and lower ends of the inflation piston rod pass through the upper cylinder cover and the filling cylinder, respectively. The top of the inflation piston rod is located inside the inflation cylinder. An inflation channel is provided at the top of the inflation cylinder. The inflation channel is connected to a three-way valve and a shut-off valve. The upper cylinder cover and the filling cylinder are respectively provided with air inlets. This utility model improves the inflation volume and can accurately package the inflation volume.

Description

Technical Field

[0001] This utility model relates to the field of aerosol production technology, and in particular to an inflation metering structure. Background Technology

[0002] The aerosol filling production line includes filling, sealing and filling, weighing, water bath testing, coding, nozzle assembly and capping. During filling, the existing production line uses a filling mechanism, which is currently slow and cannot accurately measure the amount of gas. That is, due to the characteristics of cylinder drive, the movement of the filling rod cannot be guaranteed to be precise during the final measurement, resulting in the inability to guarantee the accurate filling volume. Utility Model Content

[0003] In view of this, the present invention provides an inflation metering structure that improves inflation volume and can accurately measure inflation volume.

[0004] This utility model discloses an inflation metering structure, including a filling cylinder. An upper cylinder cover and an adjusting cylinder sleeve are respectively installed at the upper and lower ends of the filling cylinder. An inflation cylinder is installed at the upper end of the upper cylinder cover. The upper and lower ends of the inflation piston rod pass through the upper cylinder cover and the filling cylinder, respectively. The top of the inflation piston rod is located inside the inflation cylinder. An inflation channel is provided at the top of the inflation cylinder. The inflation channel is connected to a three-way valve and a shut-off valve. The upper cylinder cover and the filling cylinder are respectively provided with an air inlet.

[0005] Furthermore, the inflation piston rod includes rod one, rod two, and rod three. Rod two connects rod one and rod three. The outer diameter of rod two is equal to the inner diameter of the filling cylinder. The lower end of rod one passes through the bottom of the filling cylinder. A clearance groove is provided in the middle of rod one.

[0006] Furthermore, an adjusting nut is installed inside the adjusting cylinder liner. A push groove is provided at the top center of the adjusting nut. The bottom of rod one corresponds to the push groove. The adjusting shaft passes through the adjusting nut. The adjusting shaft corresponds to the clearance groove of rod one. The bottom of the adjusting shaft is connected to the adjusting knob.

[0007] Furthermore, an indicator plate is installed on one side of the adjusting cylinder liner. The indicator plate has scales and is made of transparent material.

[0008] Furthermore, the lower end of the adjusting nut is provided with a pointer mounting groove, one end of which is mounted in the pointer mounting groove via a pressure plate, and the other end of which is aligned with the scale on the indicator plate.

[0009] Furthermore, the adjusting shaft includes a top shaft, a limiting part, and a rotating part. The limiting part connects the top shaft and the rotating part. An upper end cover is installed at the bottom of the adjusting cylinder liner. The rotating part passes through the upper end cover. A limiting part mounting groove is provided at the middle of the upper end of the upper end cover. The adjusting knob is connected to the bottom of the rotating part by fasteners. The top shaft is threadedly connected to the adjusting nut. The top shaft corresponds to the clearance groove of rod one. The diameter of the top shaft is less than or equal to the diameter of the clearance groove.

[0010] Furthermore, the upper cylinder head is connected to the inflation cylinder by a locking nut, and a retaining ring is provided between the locking nut and the outer wall of the inflation cylinder.

[0011] Furthermore, the outer wall of rod two is provided with an O-ring mounting groove, and an O-ring is installed in the O-ring mounting groove.

[0012] This invention improves the inflation structure by inflating the filling cylinder, which in turn moves the inflation piston rod. The inflation piston rod pushes the gas to be inflated from the inflation channel into the three-way valve to achieve inflation. The amount of inflation is linearly related to the inflation piston rod. After the inflation piston rod is inflated, the inflation is checked by a pointer to see if the inflation is complete. If it is not complete, it is manually rotated, and the inflation piston rod is pushed to the target according to the pointer, so that the inflation amount is accurate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram from another perspective of an embodiment of the present invention.

[0016] Figure 3 This is a cross-sectional view of an embodiment of the present invention.

[0017] Figure 4 This is a cross-sectional view of the inflatable piston rod according to an embodiment of the present invention.

[0018] Figure 5 This is a cross-sectional view of the adjusting shaft according to an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0020] As shown in the figure, this utility model discloses a gas filling and metering structure, including a filling cylinder 1. An upper cylinder cover 2 and an adjusting cylinder sleeve 3 are respectively installed at the upper and lower ends of the filling cylinder 1. An inflation cylinder 4 is installed at the upper end of the upper cylinder cover 2. The upper and lower ends of an inflation piston rod 5 pass through the upper cylinder cover 2 and the filling cylinder 1, respectively. The top of the inflation piston rod 5 is located inside the inflation cylinder 4. The top of the inflation cylinder 4 is provided with an inflation channel 41, which connects to a three-way valve 6 and a shut-off valve 7. The upper cylinder cover 2 and the filling cylinder 1 are respectively provided with an air inlet A. The gas to be filled enters the inflation channel 41 through the shut-off valve 7, and the inflation piston rod 5 operates, pushing the gas through the three-way valve 6 into the bottle for filling.

[0021] In one embodiment of this utility model, the inflation piston rod 5 includes rod one 51, rod two 52, and rod three 53. Rod two 52 connects rod one 51 and rod three 53. The outer diameter of rod two 52 is equal to the inner diameter of the filling cylinder 1. The lower end of rod one 51 passes through the bottom of the filling cylinder 1, and a clearance groove 511 is provided in the middle of rod one 51. Rod three 53 is used for pushing air. The filling cylinder 1 pushes rod two 52 to move by venting air, and rod two 52 drives rod one 51 and rod three 53 to move.

[0022] In one embodiment of this utility model, an adjusting nut 8 is installed inside the adjusting cylinder liner 3. A pushing groove is provided at the top center of the adjusting nut 8, and the bottom of rod 51 corresponds to the pushing groove. An adjusting shaft 9 passes through the adjusting nut 8, and the adjusting shaft 9 corresponds to the clearance groove 511 of rod 51. The bottom of the adjusting shaft 9 is connected to the adjusting knob 10. Rotating the adjusting shaft 9 causes the adjusting nut 8 to move horizontally, which in turn pushes rod 51 to move, thereby pushing rod 53 to move.

[0023] In one embodiment of this utility model, an indicator plate 11 is installed on one side of the adjusting cylinder liner 3. The indicator plate 11 has a scale 12 and is made of transparent material. The indicator plate 11 is made of transparent material, which makes it convenient to observe the pointer 13.

[0024] In one embodiment of this utility model, the lower end of the adjusting nut 8 is provided with a pointer mounting groove, and one end of the pointer 13 is mounted in the pointer mounting groove through the pressure plate 14, with one end of the pointer 13 facing the scale 12 of the indicator plate 11. When the adjusting nut 8 moves, it drives the pointer 13 to move as well.

[0025] In one embodiment of this utility model, the adjusting shaft 9 includes a top shaft 91, a limiting part 92, and a rotating part 93. The limiting part 92 connects the top shaft 91 and the rotating part 93. An upper end cover 15 is installed at the bottom of the adjusting cylinder liner 3. The rotating part 93 passes through the upper end cover 15. A limiting part mounting groove 151 is provided at the middle of the upper end of the upper end cover 15. The adjusting knob 10 is connected to the bottom of the rotating part 93 by fasteners. The top shaft 91 is threadedly connected to the adjusting nut 8. The top shaft 91 corresponds to the clearance groove 511 of the rod 51. The diameter of the top shaft 91 is less than or equal to the diameter of the clearance groove 511.

[0026] In one embodiment of this utility model, the upper cylinder cover 2 and the inflation cylinder 4 are connected by a locking nut 16, and a retaining ring 17 is provided between the locking nut 16 and the outer wall of the inflation cylinder 4. The locking nut 16 facilitates disassembly and cleaning.

[0027] In one embodiment of this utility model, the outer wall of the second rod 52 is provided with an O-ring mounting groove 521, and an O-ring 18 is installed in the O-ring mounting groove. The O-ring 18 serves a sealing function.

[0028] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An inflation metering structure, characterized in that, It includes a filling cylinder, with an upper cylinder cover and an adjusting cylinder sleeve installed at the upper and lower ends of the filling cylinder, respectively. An inflation cylinder is installed at the upper end of the upper cylinder cover. The upper and lower ends of the inflation piston rod pass through the upper cylinder cover and the filling cylinder, respectively. The top of the inflation piston rod is located inside the inflation cylinder. An inflation channel is provided at the top of the inflation cylinder. The inflation channel is connected to a tee and a shut-off valve. The upper cylinder cover and the filling cylinder are respectively provided with air inlets.

2. The inflation metering structure as described in claim 1, characterized in that, The inflation piston rod includes rod one, rod two, and rod three. Rod two connects rod one and rod three. The outer diameter of rod two is equal to the inner diameter of the filling cylinder. The lower end of rod one passes through the bottom of the filling cylinder. A clearance groove is provided in the middle of rod one.

3. The inflation metering structure as described in claim 2, characterized in that, An adjusting nut is installed inside the adjusting cylinder liner. A push groove is provided at the top center of the adjusting nut. The bottom of rod one corresponds to the push groove. The adjusting shaft passes through the adjusting nut and corresponds to the clearance groove of rod one. The bottom of the adjusting shaft is connected to the adjusting knob.

4. The inflation metering structure as described in claim 3, characterized in that, An indicator plate with graduations is installed on one side of the adjusting cylinder liner. The indicator plate is made of transparent material.

5. The inflation metering structure as described in claim 4, characterized in that, The lower end of the adjusting nut is provided with a pointer mounting slot. One end of the pointer is mounted in the pointer mounting slot through a pressure plate, and the other end of the pointer is aligned with the scale on the indicator plate.

6. The inflation metering structure as described in claim 3, characterized in that, The adjusting shaft includes a top shaft, a limiting part, and a rotating part. The limiting part connects the top shaft and the rotating part. An upper end cover is installed at the bottom of the adjusting cylinder liner. The rotating part passes through the upper end cover. A limiting part mounting groove is provided at the middle of the upper end of the upper end cover. The adjusting knob is connected to the bottom of the rotating part by fasteners. The top shaft is threadedly connected to the adjusting nut. The top shaft corresponds to the clearance groove of rod one. The diameter of the top shaft is less than or equal to the diameter of the clearance groove.

7. The inflation metering structure as described in claim 1, characterized in that, The upper cylinder head is connected to the inflation cylinder by a locking nut, and a retaining ring is provided between the locking nut and the outer wall of the inflation cylinder.

8. The inflation metering structure as described in claim 2, characterized in that, The outer wall of rod two is provided with an O-ring mounting groove, and an O-ring is installed in the O-ring mounting groove.

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