Automatic inflation valve and gas storage bottle with automatic inflation valve

Abstract

An automatic inflation valve and a gas storage bottle with the automatic inflation valve, the automatic inflation valve comprises an activator, a protective cover, an upper valve seat, an ejector assembly, a marble, a compression spring, an ejector column and a lower valve seat; the protective cover is fixed on the lower valve seat, and the activator, the ejector column and the upper valve seat are arranged in the protective cover; the upper valve seat is provided with a conical chamfered surface on the inner hole wall; the ejector assembly is provided with an upper sleeve, a connecting plate and an ejector, the upper sleeve side wall is provided with a plurality of axial long grooves penetrating with the top end, and a convex ridge is provided at the top end of the outer wall of the upper sleeve, and the bottom surface of the convex ridge cooperates with the conical chamfered surface of the inner hole of the upper valve seat to define the initial position of the ejector assembly before working; the marble is embedded in the upper sleeve of the ejector assembly; the compression spring is sleeved outside the ejector assembly; the lower valve seat is provided with an air outlet, which is installed at the mouth of the gas storage bottle. The present invention improves the working efficiency of the inflation operation and avoids the phenomenon of the air inlet and the air outlet of the ejector assembly being blocked in a low temperature environment.

Description

Technical Field

[0001] The invention relates to an automatic inflation valve, in particular to an automatic inflation valve matched with a gas storage bottle provided with a diaphragm sealing structure. The invention also relates to a gas storage bottle with the automatic inflation valve. Background Art

[0002] A gas cylinder is a container for storing pressurized gas. Most non-fixed gas-using equipment uses a gas cylinder as a gas source for providing pressurized gas. For example, a gas cylinder with an automatic inflation function is installed on a rubber boat. The mouth of the gas cylinder is sealed by a diaphragm, and an automatic inflation valve connecting the inflation pipelines of the air chambers on the left and right sides of the rubber boat is provided above the sealed diaphragm of the bottle mouth. When the air chamber of the rubber boat needs to be inflated, the activator provided on the automatic inflation valve drives the ejector pin to move downward to pierce the sealed diaphragm at the mouth of the gas cylinder, so that the gas in the bottle enters the inflation pipelines of the air chambers on the left and right sides through the left and right inflation ports on the inflation valve.

[0003] The gas cylinder with automatic inflation function configured on the rubber boat mentioned above has the ejector pin of its automatic inflation valve directly assembled with the bottom of the activator. In order to avoid accidental activation of the activator due to the heavy weight of the ejector pin, the weight and diameter of the ejector pin are designed to be smaller, and the ejector pin air inlet and the ejector pin air outlet are also small. Therefore, the gas flow rate is small during the inflation process, which prolongs the inflation time of the rubber boat. Especially in cold seasons, when the gas cylinder is a CO2 cylinder, solid CO2 is easily condensed at the ejector pin air inlet and the ejector pin outlet, causing blockage of the inflation channel and resulting in failure to inflate the rubber boat. Summary of the invention

[0004] The present invention provides an automatic inflation valve and a gas storage cylinder with the automatic inflation valve. A suspended large-size ejector is arranged in the automatic inflation valve to enlarge the diameter of the ejector air inlet and the ejector air outlet, increase the gas flow rate during the inflation process, shorten the inflation time, and achieve the purpose of improving work efficiency and avoiding blockage of the ejector air inlet and the ejector air outlet due to gas condensation in a low-temperature environment.

[0005] To achieve the above object, the present invention adopts the following technical solution:

[0006] An automatic inflation valve, comprising an activator, a protective cover, an upper valve seat, an ejector pin assembly, a marble, a compression spring, an ejector column and a lower valve seat; the protective cover is fixed to the top of the lower valve seat, and the activator, the ejector column and the upper valve seat are mounted in the protective cover; the top of the activator extends out of the protective cover, and the tail is fixedly assembled with the upper valve seat; the upper valve seat is provided with a stepped hole that passes through from top to bottom, and a conical chamfered surface is provided at the upper end of the stepped hole; the ejector pin assembly comprises an upper sleeve and an ejector pin, and a A connecting seat is arranged, a plurality of groups of axial long grooves penetrating the top are arranged on the side wall of the upper sleeve, and a convex ridge is arranged on the top of the outer wall of the upper sleeve; the ejector column is fixedly assembled with the activator; the marble is embedded in the upper sleeve of the ejector assembly; the compression spring is sleeved on the outside of the upper sleeve of the ejector assembly, and its two ends respectively conflict with the step surface of the step hole in the upper valve seat and the connecting seat of the ejector assembly; the lower valve seat is installed on the bottle mouth of the gas storage bottle, and an outlet connected to the inflation pipeline of the general gas equipment is arranged on the side wall of the lower valve seat.

[0007] The automatic inflation valve has a marble with a cylindrical upper portion and an inverted truncated cone lower portion.

[0008] In the above-mentioned automatic inflation valve, the inner hole of the upper sleeve of the ejector assembly is provided with a marble clamping part, the diameter size Φ1 of the marble clamping part is smaller than the diameter size Φ of the upper cylinder of the marble, and the diameter size Φ2 of the inner hole below the marble clamping part is larger than the diameter size Φ of the upper cylinder of the marble.

[0009] In the automatic inflation valve, the axial long grooves on the side wall of the upper sleeve of the ejector assembly are evenly arranged along the circumferential direction of the sleeve of the ejector assembly, and the number of the axial long grooves is not less than six groups.

[0010] In the automatic inflation valve, a needle is provided at the tail end of the ejector pin in the ejector pin assembly, an ejector pin air inlet is provided at the needle pin, and an ejector pin air outlet is provided on the ejector pin side wall.

[0011] The automatic inflation valve has a stepped cylindrical structure, the upper portion of which is a fixed disk connected to the activator, the middle portion of which can be inserted into the stepped hole of the upper valve seat, and the lower portion of which can be inserted into the upper sleeve of the ejector assembly.

[0012] The automatic inflation valve has a plurality of gas outlets on the lower valve seat.

[0013] A gas storage bottle with an automatic inflation valve is provided. A sealing diaphragm is arranged at the bottle mouth of the gas storage bottle, and the automatic inflation valve is installed on the bottle mouth of the gas storage bottle.

[0014] In the above-mentioned gas storage bottle with automatic inflation valve, the sealing diaphragm is a waterproof sealing membrane.

[0015] The gas storage cylinder with the automatic filling valve stores liquid high-pressure gas in the gas storage cylinder.

[0016] The present invention provides an automatic inflation valve and a gas storage bottle with the automatic inflation valve. When the automatic inflation valve is in a non-working state, a marble is located in a marble clamping portion of an inner hole of an upper sleeve of an ejector pin assembly, and the marble is clamped by a side wall of the upper sleeve of the ejector pin assembly. At the same time, the marble opens an axial long groove on the side wall of the upper sleeve of the ejector pin assembly, so that a convex ridge on an outer wall of the upper sleeve of the ejector pin assembly expands radially. Under the action of the elastic force of a compression spring, the expanded convex ridge is clamped in an upper orifice of a stepped hole of an upper valve seat, and the bottom surface of the convex ridge fits with a conical chamfered surface at an upper orifice of the stepped hole of the upper valve seat. The ejector pin assembly is fixed on the upper valve seat. At this time, a needle head at the lower end of the ejector pin is located above a sealing diaphragm at the mouth of the gas storage bottle and does not contact the sealing diaphragm. When the activator is activated, the ejector column is pushed to move downward. First, the lower end of the ejector column contacts the marble, and the ejector column pushes the marble downward. When the marble passes through the marble clamping part of the upper sleeve of the ejector assembly, the radial pressure on the side wall of the upper sleeve of the ejector assembly is released, and the axial long groove on the side wall of the upper sleeve of the ejector assembly that is stretched out closes and resets. The convex ridge of the upper sleeve of the ejector assembly retracts radially and disengages from the conical chamfered surface of the upper valve seat. At this time, the elastic force of the compression spring is released, pushing the ejector assembly to accelerate downward, and the sealing diaphragm at the mouth of the gas bottle is pierced by the needle at the lower end of the ejector, and the needle at the lower end of the ejector enters the gas bottle. The gas in the gas bottle can enter the inflation pipeline of the gas-using equipment through the ejector air inlet at the needle, the ejector air outlet on the side wall of the ejector, and the air outlet of the lower valve seat, and the automatic inflation valve enters the working state. It can be seen that the present invention arranges an independently suspended large-sized ejector pin assembly in the automatic inflation valve and increases the ejector pin air inlet and the ejector pin air outlet. Therefore, it not only increases the gas flow rate during the inflation process, shortens the inflation time, and improves the work efficiency, but also avoids the blockage of the ejector pin air inlet and the ejector pin air outlet due to gas condensation in a low temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the automatic inflation valve structure (initial state before working);

[0018] Figure 2 yes Figure 1 The enlarged view of the structure at position Ⅰ in the middle;

[0019] Figure 3 yes Figure 2 Sectional view along section AA (enlarged);

[0020] Figure 4 Schematic diagram of the cross-sectional structure of the upper valve seat;

[0021] Figure 5 It is a schematic diagram of the ejector assembly structure;

[0022] Figure 6 This is a schematic diagram of the upper sleeve structure of the ejector pin.

[0023] Figure 7 yes Figure 6 A magnified view of the structure at center Ⅱ;

[0024] Figure 8 yes Figure 6 Sectional view along section BB (enlarged);

[0025] Fig. 9 This is a schematic diagram of the ejector assembly being separated from the upper valve seat after the activator is activated;

[0026] Fig.10 yes Fig. 9 A magnified view of the structure at position III;

[0027] Fig.11 This is a schematic diagram of the inflation state of the automatic inflation valve;

[0028] Fig.12 yes Fig.11 Enlarged view of the structure at point IV in the middle.

[0029] The list of reference numbers in the figure is:

[0030] 1. Exciter;

[0031] 2. Protective cover;

[0032] 3. Upper valve seat, 3-1, stepped hole, 3-2, conical chamfered surface;

[0033] 4. Marbles;

[0034] 5. Compression spring;

[0035] 6. Ejector assembly

[0036] 6-1, upper sleeve, 6-1-1, convex ridge, 6-1-2, bottom surface of convex ridge, 6-1-3, axial long groove, 6-1-4, marble clamping part, 6-2, connecting seat, 6-3, ejector pin, 6-3-1, ejector pin air outlet, 6-3-2, needle, 6-3-3, ejector pin air inlet;

[0037] 7. Lower valve seat, 7-1, air outlet;

[0038] 8. Top column;

[0039] 9. Gas storage cylinder, 9-1. Sealing diaphragm. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0041] It should be noted here that the “upper”, “lower”, “left” and “right” in the specification and claims are described according to the upper, lower, left and right directions shown in the drawings, and are not consistent with the actual upper, lower, left and right directions. When the gas cylinder is in a non-vertical installation state, the directions represented by “upper”, “lower”, “left” and “right” should be understood adaptively.

[0042] See Figure 1. Figure 2 The automatic inflation valve described in the present invention includes an activator 1, a protective cover 2, an upper valve seat 3, a ejector assembly 6, a marble 4, a compression spring 5, an ejector column 8 and a lower valve seat 7; the protective cover 2 is fixed to the top of the lower valve seat 7, and the activator 1, the ejector column 8 and the upper valve seat 3 are installed in the protective cover 2; the top of the activator 1 extends out from the protective cover 2, and the tail is fixedly assembled with the upper valve seat 3; the ejector assembly 6 is assembled with the upper valve seat 3, and the initial position of the ejector assembly 6 before the automatic inflation valve works is defined by the upper valve seat 3, and a compression spring 5 is mounted on the outside of the ejector assembly 6, and the compression spring 5 is compressed before the automatic inflation valve works; the lower valve seat 7 is installed on the bottle mouth of the gas storage bottle 9, and a plurality of groups of gas outlets 9-1 connected to the inflation pipeline of the general gas equipment are provided on its side wall. When the number of the gas outlets 9-1 is two groups, the two groups of gas outlets 9-1 are arranged symmetrically on the left and right.

[0043] See Figure 1. Figure 2 , Figure 4 The automatic inflation valve of the present invention has a stepped hole 3-1 extending vertically through the upper valve seat 3, and a conical chamfered surface 3-2 cooperating with the ejector assembly is provided on the upper end surface of the stepped hole 3-1.

[0044] See Figure 1. Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The automatic inflation valve described in the present invention, the ejector assembly 6 includes an upper sleeve 6-1, a connecting seat 6-2 and an ejector 6-3, a flange disk 6-2-1 is provided in the middle of the connecting seat 6-2, and the connecting seat 6-2 is arranged between the upper sleeve 6-1 and the ejector 6-3; a needle head 6-3-2 is provided at the tail end of the ejector 6-3, and an ejector air inlet hole 6-3-3 is provided on the conical surface of the needle head 6-3-2, and an ejector air outlet hole 6-3-1 is provided on the side wall of the ejector 6-3; at least six groups of axial long grooves 6-1-3 penetrating with the top are provided on the side wall of the upper sleeve 6-1, and a convex ridge 6-1-1 is provided on the top of the outer wall of the upper sleeve 6-1, and the bottom surface 6-1-2 of the convex ridge is an inclined surface matching the conical chamfered surface 3-2 of the stepped hole of the upper valve seat 3.

[0045] See Figure 1. Figure 2 , Figure 3 , Figure 4 , Figure 5 The automatic inflation valve described in the present invention has a top column 8 that is a stepped cylindrical structure, the upper part of which is a fixed disk connected to the activator 1, the middle part can be inserted into the stepped hole 3-1 of the upper valve seat 3, and the lower part can be inserted into the upper sleeve 6-1 of the ejector assembly 6; the upper part of the marble 4 is a cylinder, and the lower part is an inverted frustum structure; the two ends of the compression spring 5 respectively conflict with the stepped surface of the stepped hole 3-1 in the upper valve seat 3 and the flange disk 6-2-1 of the connecting seat 6-2 in the ejector assembly 6.

[0046] See also Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 In the automatic inflation valve described in the present invention, the inner hole of the upper sleeve 6-1 of the ejector assembly 6 is provided with a marble clamping portion 6-1-4, and the diameter size Φ1 of the marble clamping portion 6-1-4 is smaller than the diameter size Φ of the upper cylinder of the marble 4, that is, Φ1<Φ, and the diameter size Φ2 of the inner hole below the marble clamping portion 6-1-4 is larger than the diameter size Φ of the upper cylinder of the marble 4, that is, Φ2>Φ.

[0047] See also Figure 1 The gas cylinder with an automatic inflation valve described in the present invention is preferably a liquid CO2 gas cylinder mounted on a rubber boat, wherein a sealing diaphragm 9-1 made of a waterproof material is provided at the mouth of the gas cylinder 9, and the automatic inflation valve is installed at the mouth of the gas cylinder 9.

[0048] See also Figures 1 to 12 The present invention provides an automatic inflation valve and a gas storage bottle with the automatic inflation valve. When the automatic inflation valve is working, a marble 4 is placed on a marble clamping portion 6-1-4 of an upper sleeve 6-1 of an ejector assembly 6, and the marble 4 is clamped by the side wall of the upper sleeve 6-1 of the ejector assembly 6. At the same time, the marble 4 opens the axial long groove 6-1-3 of the side wall of the upper sleeve 6-1 of the ejector assembly 6, so that the convex ridge 6-1-1 on the outer wall of the upper sleeve 6-1 of the ejector assembly 6 is radially expanded. The expanded convex ridge 6-1-1 is clamped on the upper end opening of the stepped hole 3-1 of the upper valve seat 3, and the bottom surface 6-1-2 of the convex ridge is fitted with the conical chamfered surface at the upper end opening of the stepped hole 3-1 of the upper valve seat 3. The ejector assembly 6 is fixed on the upper valve seat. At this time, the needle head 6-3-2 at the lower end of the ejector 6-3 is located above the sealing diaphragm 9-1 at the bottle mouth of the gas storage bottle 9, and does not contact the sealing diaphragm 9 (as shown in the attached figure). Figure 1 , Figure 2As shown); when the activator 1 is activated, the ejector column 8 is pushed to move downward, and the lower end of the ejector column 8 first pushes the marble 4 downward. After the marble 4 passes through the marble clamping portion 6-1-4 of the ejector assembly 6, the radial pressure of the marble 4 on the side wall of the upper sleeve 6-1 of the ejector assembly 6 is released, and the axial long groove 6-1-3 on the side wall of the upper sleeve 6-1 of the ejector assembly 6 is closed and reset. The convex ridge 6-1-1 on the outer wall of the upper sleeve 6-1 of the ejector assembly 6 retracts radially and disengages from the conical chamfered surface 3-2 of the upper valve seat 3. At this time, the elastic force of the compression spring 5 is released, pushing the ejector assembly 6 to accelerate downward (as shown in the attached figure). Fig. 9 , Fig.10 As shown in the figure, the needle 6-3-2 at the lower end of the ejector assembly 6 pierces the sealing diaphragm 9-1 at the mouth of the gas cylinder 9, and the gas in the gas cylinder 9 enters the charging pipeline of the gas-using equipment through the ejector air inlet 6-3-3 at the needle 6-3-2, the ejector air outlet 6-3-1 on the side wall of the ejector 6-3, and the air outlet 7-1 of the lower valve seat 7. At this point, the automatic charging valve enters the working state (as shown in the figure). Fig.11 , Fig.12 shown).

[0049] A preferred embodiment of the present invention is an automatic inflation valve installed at the mouth of the CO2 gas storage bottle of an inflatable boat, wherein the activator 1 is a water-sensitive activator. When the inflatable boat is thrown into the water, the top of the activator 1 contacts the water and activates the activator, causing the automatic inflation valve to enter a working state, and the inflation pipeline of the air chamber of the inflatable boat is opened through the ejector pin 6-3, thereby realizing the automatic inflation operation of the inflatable boat.

Claims

1. An automatic inflation valve, characterized in that: It comprises an activator (1), a protective cover (2), an upper valve seat (3), an ejector pin assembly (6), a marble (4), a compression spring (5), an ejector column (8) and a lower valve seat (7); the protective cover (2) is fixed to the top of the lower valve seat (7), and the activator (1), the ejector column (8) and the upper valve seat (3) are arranged in the protective cover (2); the activator (1) is a water-contacting activator, the upper valve seat (3) is provided with a stepped hole (3-1) extending vertically, and a conical chamfered surface (3-2) is provided at the upper end of the stepped hole (3-1); the ejector pin assembly (6) comprises an upper sleeve (6-1) and an ejector pin (6-3), and a plurality of ejector pins (6-3) are provided between the upper sleeve (6-1) and the ejector pin (6-3). A connecting seat (6-2) with a flange (6-2-1) is arranged between the needle (6-3), the side wall of the upper sleeve (6-1) is provided with a plurality of groups of axial long grooves (6-1-3) penetrating the top, and a convex ridge is arranged at the top of the outer wall of the upper sleeve; the ejector column (8) is fixedly assembled with the activator (1); the marble (4) is embedded in the upper sleeve (6-1) of the ejector assembly (6); the compression spring (5) is sleeved on the outside of the upper sleeve (6-1) of the ejector assembly (6), and its two ends are respectively in conflict with the stepped surface of the stepped hole (3-1) in the upper valve seat (3) and the flange (6-2-1) of the connecting seat (6-2) of the ejector assembly (6); the lower valve seat (7) is installed on the bottle mouth of the gas storage bottle (9), and an outlet (7-1) connected to the inflation pipeline of the general gas equipment is provided on the side wall of the lower valve seat; The axial long grooves (6-1-3) on the side wall of the upper sleeve of the ejector assembly (6) are evenly arranged along the circumferential direction of the upper sleeve of the ejector assembly; The marble (4) has a cylindrical upper portion and an inverted truncated cone structure at the lower portion; The inner hole of the upper sleeve (6-1) of the ejector assembly (6) is provided with a marble clamping portion (6-1-4), the diameter size Φ1 of the marble clamping portion (6-1-4) is smaller than the diameter size Φ of the upper cylinder of the marble (4), and the diameter size Φ2 of the inner hole below the marble clamping portion (6-1-4) is larger than the diameter size Φ of the upper cylinder of the marble (4); The tail end of the ejector pin (6-3) in the ejector pin assembly (6) is provided with a needle head (6-3-2), an ejector pin air inlet hole (6-3-3) is provided at the needle head (6-3-2), and an ejector pin air outlet hole (6-3-1) is provided on the ejector pin side wall; The ejector column (8) is a stepped cylindrical structure, the upper portion of which is a fixed disk connected to the exciter (1), the middle portion of which can be inserted into the stepped hole (3-1) of the upper valve seat (3), and the lower portion of which can be inserted into the upper sleeve of the ejector pin assembly (6).

2. The automatic inflation valve according to claim 1, characterized in that: The number of the axial long grooves (6-1-3) on the side wall of the upper sleeve of the ejector pin assembly (6) is not less than six groups.

3. The automatic inflation valve according to claim 1, characterized in that: The air outlets (7-1) of the lower valve seat (7) are provided in a plurality of groups.

4. A gas storage bottle with an automatic filling valve, characterized in that: The gas storage bottle (9) is provided with a sealing diaphragm (9-1) at the bottle mouth, and an automatic inflation valve as claimed in any one of claims 1 to 3 is installed on the bottle mouth of the gas storage bottle (9); the sealing diaphragm (9-1) is a waterproof sealing membrane.

5. The gas storage cylinder with an automatic filling valve according to claim 4, characterized in that: Liquid high-pressure gas is stored in the gas storage cylinder (9).

Images