A silicone suction device for a silicone respirator

Abstract

The present invention discloses a silicone suction device for a silicone respirator, comprising: a lower shell, an upper cover, wherein the top of the lower shell is fixedly connected to the bottom of the upper cover; a vacuum pump, wherein the air inlet of the vacuum pump is connected to one end of the trachea, and the top of the upper cover is connected to the other end of the trachea; a limiting frame, wherein the limiting frame is fixedly connected to the inner side wall of the lower shell, and the limiting frame has an inner ring portion coaxial with the lower shell; and a suction tube, wherein the bottom end of the lower shell has a discharge port, the suction tube is located inside the discharge port, the top end of the suction tube is located above the limiting frame and is fixedly connected to a limiting member, the bottom end of the suction tube extends out of the lower shell, and is provided with an annular outer edge. This solves the problem that the current replacement method of pouring out all the silicone particles mixes some of the undiscolored silicone particles with the discolored particles and pours them out, which wastes the silicone particles.

Description

Technical Field

[0001] The invention relates to the technical field of transformer maintenance tools, in particular to a silica gel suction device for a silica gel respirator. Background Art

[0002] The breather is installed at the end of the pipe connecting the oil pillow to the air. When the transformer temperature rises, the oil in the tank expands, causing the oil level in the pillow to rise. At this time, some of the gas in the capsule is discharged through the breather. When the transformer temperature drops, the oil in the tank contracts, causing the oil level in the pillow to drop. At this time, the capsule absorbs some of the gas through the breather. The breather ensures that the water content of the gas entering the tank is relatively low, thereby maintaining the moisture content of the transformer oil.

[0003] Silicone respirator is the most commonly used respirator, and its interior mainly contains silicone particles. When the silicone particles inside the silicone respirator absorb moisture and change color by 2 / 3, the respirator needs to be maintained (the silicone particles are replaced) according to regulations. The current replacement method is to pour out all the silicone particles and mix some of the uncolored silicone particles with the colored particles. This method is relatively wasteful of silicone particles. For this reason, the present invention provides a silicone suction device for a silicone respirator. Summary of the Invention

[0004] In order to solve the above shortcomings and deficiencies of the prior art, the object of the present invention is to provide a silica gel suction device for a silica gel respirator.

[0005] The technical solution of the present invention is a silica gel suction device for a silica gel respirator, comprising:

[0006] A lower shell and an upper cover, wherein the top of the lower shell is fixedly connected to the bottom of the upper cover;

[0007] A vacuum pump, wherein the air inlet of the vacuum pump is connected to one end of the air pipe, and the top of the upper cover is connected to the other end of the air pipe;

[0008] A limiting frame, the limiting frame is fixedly connected to the inner side wall of the lower shell, and the limiting frame has an inner ring portion coaxial with the lower shell;

[0009] The suction tube has a discharge port at the bottom end of the lower shell, the suction tube is located on the inner side of the discharge port, the top end of the suction tube is located above the limit frame and is fixedly connected to a limit member, the bottom end of the suction tube extends out of the lower shell and is provided with an annular outer edge.

[0010] Optionally, the limiting frame includes:

[0011] an outer ring portion, the outer ring portion being threadedly connected to the inner side wall of the lower shell;

[0012] The outer ring portion and the inner ring portion are fixedly connected via a bracket, and a notch matching the limiting member is provided on the inner side of the inner ring portion.

[0013] Optionally, the lower shell is made of transparent material.

[0014] Optionally, a thin-diameter portion is provided at the bottom of the discharge port, and a bottom flange is fixedly connected to the bottom end of the thin-diameter portion.

[0015] Optionally, an annular opening is provided on the inner side of the thin-diameter portion, and a sealing ring is provided inside the annular opening.

[0016] Optionally, an air hole is provided on the side of the thin-diameter portion and below the annular opening.

[0017] Preferably, the lower shell is made of acrylic.

[0018] Furthermore, the working pressure of the vacuum pump is less than -70Pa.

[0019] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention provides a suction tube that can move up and down, so that when sucking silica gel particles, its bottom end can always be at the top layer of silica gel particles, and as the silica gel particles decrease, it slides downward under the action of gravity, and a limiting frame is provided to limit the lowest position of the suction tube, so that when the suction tube penetrates to the 2 / 3 position (the position of the limiting frame can be adjusted according to different models of silica gel respirators), it can no longer move downward, which makes it very convenient to extract silica gel particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional view of the present invention;

[0021] Figure 2 is a cross-sectional view of the present invention;

[0022] Figure 3 for Figure 2 Partial view at point A in the middle;

[0023] Figure 4 It is a schematic diagram of the three-dimensional view of the lower shell and internal structure.

[0024] Legend:

[0025] 1. Lower shell; 2. Upper cover; 3. Vacuum pump; 4. Air pipe; 5. Limiting frame; 51. Outer ring; 52. Bracket; 53. Inner ring; 54. Notch; 6. Suction tube; 61. Annular outer edge; 62. Limiting piece; 7. Thin diameter portion; 8. Annular opening; 9. Sealing ring; 10. Air hole; 11. Bottom flange. DETAILED DESCRIPTION

[0026] The invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0027] The silicone respirators currently in use are mostly connected at the top with a flange structure. When external air enters, it flows from bottom to top, causing the silicone particles below to change color. This solution is also an extraction device designed for this type of silicone respirator.

[0028] refer to Figures 1 to 4 A silicone suction device for a silicone respirator includes: a lower shell 1, an upper cover 2, and a vacuum pump 3. The top of the lower shell 1 is fixedly connected to the bottom of the upper cover 2, so that a cavity is formed between the lower shell 1 and the upper cover 2. The air inlet of the vacuum pump 3 is connected to one end of the trachea 4, and the top of the upper cover 2 is connected to the other end of the trachea 4. When the vacuum pump 3 is working, the air in the cavity is extracted through the trachea 4, so that a negative pressure is generated in the cavity formed between the lower shell 1 and the upper cover 2.

[0029] It also includes: a limit frame 5 and a suction tube 6. The limit frame 5 is fixedly connected to the inner wall of the lower shell 1 and has an inner ring portion 53 coaxial with the lower shell 1. The bottom end of the lower shell 1 has a discharge port, and the suction tube 6 is located on the inner side of the discharge port. The top end of the suction tube 6 is located above the limit frame 5 and is fixedly connected with a limiting member 62. The limiting member 62 cooperates with the limit frame 5 to limit the lower end position of the suction tube 6. The bottom end of the suction tube 6 extends out of the lower shell 1 and is provided with an annular outer edge 61. The provision of the annular outer edge 61 can prevent the bottom end of the suction tube 6 from being inserted into the silica gel particles.

[0030] Reference Attachment Figure 4 The specific limit frame 5 includes: an outer ring portion 51, a bracket 52, and an inner ring portion 53. The outer ring portion 51 is threadedly connected to the inner wall of the lower shell 1. By rotating the outer ring portion 51, the height of the limit frame 5 can be adjusted as a whole, that is, the height of the inner ring portion 53 can be adjusted.

[0031] The outer ring portion 51 and the inner ring portion 53 are fixedly connected by brackets 52 , specifically three groups of brackets 52 are used for the connection. A notch 54 matching the limiting member 62 is provided on the inner side of the inner ring portion 53 .

[0032] The limiting member 62 and the notch 54 of this solution are both in the shape of long strips. The user can rotate the suction tube 6 to make the limiting member 62 completely correspond to the notch 54, and then continue to pull the suction tube 6 downward to the lowest end.

[0033] Preferably, the lower shell 1 is made of a transparent material, specifically a transparent acrylic sheet, which has a certain anti-collision performance, making it easy for users to observe the number of silica gel particles inside; it is easy to rotate and adjust the suction tube 6 so that the limiting part 62 is completely aligned with the notch 54, and it is very convenient to use.

[0034] Reference Attachment Figure 2-Figure 3 In this embodiment, a thin-diameter portion 7 is provided at the bottom of the discharge port, and a bottom flange 11 is fixedly connected to the bottom end of the thin-diameter portion 7. The bottom flange 11 corresponds to the flange structure at the top of the silicone respirator, which can facilitate the installation of the device.

[0035] An annular opening 8 is provided on the inner side of the thin-diameter portion 7, and a sealing ring 9 is provided inside the annular opening 8 to improve the sealing performance, so that a cavity is formed between the lower shell 1 and the upper cover 2, and air only enters from the suction pipe 6, resulting in a better suction effect.

[0036] An air hole 10 is provided on the side of the thin-diameter portion 7 and below the annular opening 8. After the bottom flange 11 is connected to the flange structure at the top of the silicone respirator, the interior of the silicone respirator is in a relatively sealed state. The design of this air hole 10 can facilitate external air to directly enter the interior of the silicone respirator.

[0037] Preferably, the lower shell 1 is made of acrylic material to ensure the shell strength and transparency, while reducing weight compared to glass.

[0038] Furthermore, the working pressure of the vacuum pump 3 is less than -70 Pa. This ensures that the vacuum pump 3 can absorb silica gel.

[0039] Working principle: When in use, it is necessary to rotate and adjust the position of the limit frame 5 according to the use situation, so that the bottom end of the suction tube 6 just meets the requirement, and connect the bottom flange 11 with the flange structure on the top of the silicone respirator. At this time, the silicone particles inside the silicone respirator will push the suction tube 6 upward, so that the bottom end of the suction tube 6 is located at the top layer of the silicone particles, and start the vacuum pump 3 to work. Negative pressure is generated inside the cavity formed between the lower shell 1 and the upper cover 2, so that the bottom end of the suction tube 6 has suction, and the silicone particles are sucked into the lower shell 1. As the silicone particles are sucked, the silicone respirator The uppermost layer of the internal silica gel particles descends, and the suction tube 6 also gradually moves downward until it moves to the limit position at the lower end, completing the suction of the silica gel particles of one respirator; repeating this operation completes the suction of the silica gel particles inside multiple silica gel respirators. When the silica gel particles in the cavity formed between the lower shell 1 and the upper cover 2 reach a certain number, rotate the suction tube 6 so that the limiting member 62 corresponds to the notch 54, and pull the suction tube 6 downward so that the top end of the suction tube 6 is located at the discharge port position of the lower shell 1, and the silica gel particles inside the cavity can be poured out, which is very convenient to use.

[0040] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A silica gel suction device for a silica gel respirator, comprising: A lower shell (1) and an upper cover (2), wherein the top of the lower shell (1) is fixedly connected to the bottom of the upper cover (2); A vacuum pump (3), wherein the air inlet of the vacuum pump (3) is connected to one end of the air pipe (4), and the top of the upper cover (2) is connected to the other end of the air pipe (4); It is characterized by further comprising: A limiting frame (5), wherein the limiting frame (5) is fixedly connected to the inner side wall of the lower shell (1), and the limiting frame (5) has an inner ring portion (53) coaxial with the lower shell (1); The suction tube (6) has a discharge port at the bottom end of the lower shell (1), and the suction tube (6) is located on the inner side of the discharge port. The top end of the suction tube (6) is located above the limit frame (5) and is fixedly connected to a limit member (62). The bottom end of the suction tube (6) extends out of the lower shell (1) and is provided with an annular outer edge (61). The suction tube can move up and down. When sucking silica gel particles, its bottom end can always be at the top layer of silica gel particles. As the silica gel particles decrease, it slides downward under the action of gravity.

2. The silica gel suction device of the silica gel respirator according to claim 1, characterized in that: The limiting frame (5) comprises: an outer ring portion (51), the outer ring portion (51) being threadedly connected to the inner side wall of the lower shell (1); The outer ring portion (51) and the inner ring portion (53) are fixedly connected via a bracket (52), and a notch (54) matching the limiting member (62) is provided on the inner side of the inner ring portion (53).

3. The silica gel suction device for the silica gel respirator according to claim 2, characterized in that: The lower shell (1) is made of transparent material.

4. The silica gel suction device for the silica gel respirator according to claim 1, characterized in that: A small diameter portion (7) is provided at the bottom of the discharge port, and a bottom flange (11) is fixedly connected to the bottom end of the small diameter portion (7).

5. The silica gel suction device for the silica gel respirator according to claim 4, characterized in that: An annular opening (8) is provided on the inner side of the small diameter portion (7), and a sealing ring (9) is provided inside the annular opening (8).

6. The silica gel suction device for the silica gel respirator according to claim 5, characterized in that: An air hole (10) is provided on the side of the thin-diameter portion (7) and below the annular opening (8).

7. The silica gel suction device for the silica gel respirator according to claim 3, characterized in that: The lower shell (1) is made of acrylic material.

8. The silica gel suction device for the silica gel respirator according to claim 1, characterized in that: The working pressure of the vacuum pump (3) is less than -70 Pa.

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