Gas cylinder cap structure convenient to disassemble and assemble

Abstract

The utility model discloses a gas cylinder cap structure convenient to disassemble and assemble, which comprises two symmetrically arranged half-cylinder caps, each half-cylinder cap comprises a semi-arc bottleneck fixing shell and a semi-arc cylinder valve protecting shell, the cylinder valve protecting shells are concentrically and coaxially arranged at the top of the bottleneck fixing shell, and the two half-cylinder caps are symmetrically arranged. The sides of the bottle neck fixing shells on the two sides are in hinged fit through a hinge piece, a half air outlet hole is formed in the position, located at the top of the hinge piece, of the bottle valve protection shell, a half safety device hole is formed in the position, on the side opposite to the air outlet hole, of the bottle valve protection shell, and a notch is formed in the position, located at the bottom of the safety device hole, of the bottle neck fixing shell. A second fastening mechanism is arranged at the notch, the bottle neck fixing shell and the bottle neck of the gas cylinder are in compression fixed fit through the second fastening mechanism, a first fastening mechanism is arranged at the connecting position of the cylinder valve protection shell, the cylinder valve protection shell is in detachable fixed fit through the first fastening mechanism, and the cylinder valve provided with the safety device can be conveniently installed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas production, in particular to a cylinder cap structure that is convenient for disassembly and installation. Background Art

[0002] After the gas cylinder is filled with gas, it is necessary to protect the valve and the connection part of the valve. Usually, a cylinder cap is used. The existing cylinder cap structure is generally composed of two concentric and coaxial cylindrical shells. Holes are respectively arranged on the opposite sides of the upper cylindrical shell for the protrusion of the valve safety device and the air outlet. The lower cylindrical shell is used to be clamped and fixed to the bottleneck through bolts.

[0003] The above cylinder cap has the following problems in the use process:

[0004] Facing the valve safety device and the air outlet of the cylinder valve, there are often problems of clamping. It is difficult to align the holes during installation, and during disassembly, the holes are often stuck, resulting in low installation and disassembly efficiency; at the same time, when facing clamping, violent disassembly is usually used, resulting in a high damage rate of the cylinder cap and a short service life. Content of the Utility Model

[0005] The utility model provides a cylinder cap structure that is convenient for disassembly and installation, aiming to solve the problems of difficult installation and disassembly, low efficiency and high damage rate of the cylinder cap of the above-mentioned gas cylinder.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A cylinder cap structure that is convenient for disassembly and installation includes two half cylinder caps arranged symmetrically. Each half cylinder cap includes a bottleneck fixing shell with a semi-circular arc surface and a valve protection shell with a semi-circular arc surface. The valve protection shell is concentrically and coaxially arranged on the top of the bottleneck fixing shell. The sides between the bottleneck fixing shells on both sides form a hinge fit through a hinge member. A half air outlet hole is arranged on the valve protection shell at the top of the hinge member. A half safety device hole is arranged on the valve protection shell on the side opposite to the air outlet hole. A notch is arranged on the bottleneck fixing shell at the bottom of the safety device hole, and the notch is communicated with the safety device hole. A second fastening mechanism is arranged at the notch, and the bottleneck fixing shell forms a pressing and fixing fit with the gas cylinder bottleneck through the second fastening mechanism. A first fastening mechanism is arranged at the joint of the valve protection shells, and the valve protection shells form a detachable fixing fit through the first fastening mechanism.

[0008] Preferably, when the half bottle cap forms a complete bottle cap in cooperation with the hinge member, the bottle valve protective shell closes around the gas cylinder bottle valve and forms a locking and fixing fit through the first fastening mechanism. The bottleneck fixing shell surrounds and sleeves on the bottleneck of the gas cylinder, and the bottleneck fixing shell forms a pressing and fixing fit with the gas cylinder bottleneck through the second fastening mechanism. The two half air outlet holes on both sides cooperate to form a complete air outlet hole, and the bottle valve air outlet passes through the complete air outlet hole. The two half safety device holes on both sides cooperate to form a complete safety device hole, and the bottle valve safety device passes through the complete safety device hole.

[0009] More preferably, there are two first fastening mechanisms, which are respectively arranged at the joints on both sides of the bottle valve protective shell, and the first fastening mechanisms are axisymmetric about the center of the bottle valve protective shell.

[0010] Furthermore, each of the first fastening mechanisms includes two relatively arranged first mounting plates, which are respectively arranged on the two half bottle valve protective shells at the joints on both sides of the bottle valve protective shell. When the two half bottle valve protective shells cooperate to form a complete bottle valve protective shell, the two first mounting plates at the joint are closely attached and form a pressing and fixing fit through the first fastening bolts.

[0011] Even further, the second fastening mechanism is arranged opposite to the hinge member.

[0012] Specifically, the second fastening mechanism includes two relatively arranged second mounting plates, which are respectively arranged on the two half bottleneck fixing shells on both sides of the notch, and the two second mounting plates are symmetric about the notch. A second fastening bolt is provided between the two second mounting plates.

[0013] More specifically, the bottleneck fixing shell and the bottle valve protective shell of the same half bottle cap are integrally formed.

[0014] In detail, a layer of lining is provided on the inner sides of both the bottleneck fixing shell and the bottle valve protective shell.

[0015] Advantages of the utility model:

[0016] The utility model transforms the original bottle cap structure into two left and right opening and closing half bottle caps through the hinge member. During installation, first close the half bottle cap around the bottle valve and the bottleneck, so that the bottle valve air outlet first passes through the air outlet hole. After closing, the bottle valve safety device passes through the safety device hole. At this time, the bottle valve protective shell is completely closed. As long as the first fastening bolts of the first fastening mechanisms on both sides are locked and tightened, the fixing of the bottle valve protective shell can be completed. At this time, the bottleneck fixing shell is sleeved on the bottleneck. By tightening the second fastening bolts of the second fastening mechanism, the second mounting plates can be driven to approach, thereby clamping and fixing the bottleneck fixing shell on the bottleneck. The installation and disassembly are convenient, the work efficiency is improved, violent disassembly is avoided, and the service life of the bottle cap is increased. Description of the drawings

[0017] Figure 1 This is a three-dimensional schematic diagram of one side when the bottle cap of the present utility model forms a complete bottle cap;

[0018] Figure 2 This is a three-dimensional schematic diagram of the other side when the bottle cap of the present utility model forms a complete bottle cap;

[0019] Figure 3 This is a three-dimensional schematic diagram when the bottle cap of the present utility model is separated into two half bottle caps;

[0020] Figure 4 This is an installation schematic diagram of the present utility model at the gas cylinder valve;

[0021] In the figure: 1. Neck fixing shell; 2. Valve protection shell; 3. Hinge; 4. Air outlet hole; 5. Safety device hole; 6. Notch;

[0022] 7. First fastening mechanism; 701. First mounting plate; 702. First fastening bolt;

[0023] 8. Second fastening mechanism; 801. Second mounting plate; 802. Second fastening bolt;

[0024] 9. Liner layer. Specific embodiments

[0025] As follows, the embodiments will be further described with reference to the drawings.

[0026] As Figures 1 to 4 shown, as a preferred Embodiment 1, a gas cylinder bottle cap structure that is convenient for disassembly and installation includes two half bottle caps arranged symmetrically. Each half bottle cap includes a neck fixing shell 1 with a semi-circular arc surface and a valve protection shell 2 with a semi-circular arc surface. The valve protection shell 2 is concentrically and coaxially arranged on the top of the neck fixing shell 1. The sides of the two neck fixing shells 1 are hingedly fitted through a hinge 3. On the valve protection shell 2 at the top of the hinge 3, there is a half air outlet hole 4. On the valve protection shell 2 on the side opposite to the air outlet hole 4, there is a half safety device hole 5. On the neck fixing shell 1 at the bottom of the safety device hole 5, there is a notch 6, and the notch 6 communicates with the safety device hole 5. A second fastening mechanism 8 is provided at the notch 6, and the neck fixing shell 1 forms a pressing and fixing fit with the gas cylinder neck through the second fastening mechanism 8. A first fastening mechanism 7 is provided at the connection of the valve protection shells 2, and the valve protection shells 2 form a detachable fixing fit through the first fastening mechanism 7, which is convenient for disassembly and installation, improves the installation convenience, reduces violent disassembly, and improves the service life.

[0027] When the half bottle cap forms a complete bottle cap in cooperation with the hinge member 3, the bottle valve protective shell 2 closes around the gas cylinder bottle valve and forms a locking and fixing fit through the first fastening mechanism 7. The bottleneck fixing shell 1 surrounds and sleeves the bottleneck of the gas cylinder, and the bottleneck fixing shell 1 forms a pressing and fixing fit with the gas cylinder bottleneck through the second fastening mechanism 8. The two half air outlet holes 4 on both sides cooperate to form a complete air outlet hole 4, and the bottle valve air outlet passes through the complete air outlet hole 4. The two half safety device holes 5 on both sides cooperate to form a complete safety device hole 5, and the bottle valve safety device passes through the complete safety device hole 5, ensuring smooth installation.

[0028] There are two of the first fastening mechanisms 7, and the first fastening mechanisms 7 are respectively arranged at the joints on both sides of the bottle valve protective shell 2, and the first fastening mechanisms 7 are axisymmetric about the center of the bottle valve protective shell 2 to ensure the stability of locking.

[0029] Each of the first fastening mechanisms 7 includes two relatively arranged first mounting plates 701. The two first mounting plates 701 are respectively arranged on the two half bottle valve protective shells 2 at the joints on both sides of the bottle valve protective shell 2. When the two half bottle valve protective shells 2 cooperate to form a complete bottle valve protective shell 2, the two first mounting plates 701 at the joint are closely attached and form a pressing and fixing fit through the first fastening bolts 702 to ensure the locking of the upper half of the bottle cap.

[0030] The second fastening mechanism 8 is arranged opposite to the hinge member 3.

[0031] The second fastening mechanism 8 includes two relatively arranged second mounting plates 801. The two second mounting plates 801 are respectively arranged on the two half bottleneck fixing shells 1 on both sides of the notch 6, and the two second mounting plates 801 are symmetric about the notch 6. A second fastening bolt 802 is provided between the two second mounting plates 801. By tightening the second fastening bolt 802, the distance between the second mounting plates 801 can be changed, thereby changing the distance of the notch 6. After the distance is shortened, the bottleneck fixing shell 1 is clamped and fixed on the bottleneck to ensure the locking of the lower half of the bottle cap.

[0032] As a preferred Embodiment 2, the bottleneck fixing shell 1 and the bottle valve protective shell 2 of the same half bottle cap are integrally formed, which is convenient for use and replacement.

[0033] As a preferred Embodiment 3, a layer of inner lining 9 is provided on the inner sides of both the bottleneck fixing shell 1 and the bottle valve protective shell 2. Preferably, the inner lining 9 can be a soft-textured wear-resistant layer, which on the one hand plays a buffering role to improve the protection effect, and on the other hand increases the service life of the bottle cap.

[0034] The working principle of the present utility model:

[0035] The utility model provides a gas cylinder cap structure which is convenient for disassembly and installation. The original cap structure is transformed into two semi-cap covers that open and close left and right through a hinge 3. During installation, first close the semi-cap covers around the valve and the bottleneck, so that the gas outlet of the valve first passes through the gas outlet hole 4. After closing, the safety device of the valve passes through the safety device hole 5. At this time, the valve protection shell 2 is completely closed. As long as the first fastening bolts 702 of the first fastening mechanism 7 on both sides are locked and tightened, the fixation of the valve protection shell 2 can be completed. At this time, the bottleneck fixing shell 1 is sleeved on the bottleneck. By tightening the second fastening bolts 802 of the second fastening mechanism 8, the second mounting plate 801 can be driven to approach, so as to clamp and fix the bottleneck fixing shell 1 on the bottleneck. The installation and disassembly are convenient, the work efficiency is improved, violent disassembly is avoided, and the service life of the cap is prolonged.

Claims

1. A gas cylinder cap structure that is convenient for disassembly and installation, characterized in that, It includes two half bottle caps arranged symmetrically. Each half bottle cap includes a bottleneck fixing shell (1) with a semi-circular arc surface and a valve protection shell (2) with a semi-circular arc surface. The valve protection shell (2) is concentrically and coaxially arranged on the top of the bottleneck fixing shell (1). The sides of the two bottleneck fixing shells (1) on both sides are hingedly fitted through a hinge member (3). A half air outlet hole (4) is provided on the valve protection shell (2) at the top of the hinge member (3). A half safety device hole (5) is provided on the valve protection shell (2) on the side opposite to the air outlet hole (4). A notch (6) is provided on the bottleneck fixing shell (1) at the bottom of the safety device hole (5), and the notch (6) communicates with the safety device hole (5). A second fastening mechanism (8) is provided at the notch (6), and the bottleneck fixing shell (1) forms a pressing and fixing fit with the gas cylinder bottleneck through the second fastening mechanism (8). A first fastening mechanism (7) is provided at the joint of the valve protection shells (2), and the valve protection shells (2) form a detachable fixing fit through the first fastening mechanism (7).

2. The gas cylinder cap structure that is convenient for disassembly and installation according to claim 1, wherein When the half bottle caps are fitted around the hinge member (3) to form a complete bottle cap, the valve protection shell (2) closes around the gas cylinder valve and forms a locking and fixing fit through the first fastening mechanism (7). The bottleneck fixing shell (1) surrounds and sleeves on the gas cylinder bottleneck, and the bottleneck fixing shell (1) forms a pressing and fixing fit with the gas cylinder bottleneck through the second fastening mechanism (8). The two half air outlet holes (4) on both sides cooperate to form a complete air outlet hole (4), and the valve air outlet passes through the complete air outlet hole (4). The two half safety device holes (5) on both sides cooperate to form a complete safety device hole (5), and the valve safety device passes through the complete safety device hole (5).

3. The structure of the gas cylinder cap that is convenient for disassembly and installation according to claim 2, wherein, There are two first fastening mechanisms (7), and the first fastening mechanisms (7) are respectively arranged at the joints on both sides of the valve protection shell (2), and the first fastening mechanisms (7) are symmetrical about the center axis of the valve protection shell (2).

4. The structure of the gas cylinder cap that is convenient for disassembly and installation according to claim 3, characterized in that, Each of the first fastening mechanisms (7) includes two relatively arranged first mounting plates (701). The two first mounting plates (701) are respectively arranged on the half valve protection shells (2) on both sides of the joint of the valve protection shell (2). When the two half valve protection shells (2) are fitted to form a complete valve protection shell (2), the two first mounting plates (701) at the joint are closely attached and form a pressing type fixing fit through the first fastening bolts (702).

5. The gas cylinder cap structure facilitating disassembly and installation according to claim 4, characterized in that, The second fastening mechanism (8) is arranged opposite to the hinge member (3).

6. The gas cylinder cap structure that is convenient for disassembly and installation according to claim 5, characterized in that, The second fastening mechanism (8) includes two relatively arranged second mounting plates (801). The two second mounting plates (801) are respectively arranged on the half bottleneck fixing shells (1) on both sides of the notch (6), and the two second mounting plates (801) are symmetrical about the notch (6). A second fastening bolt (802) is provided between the two second mounting plates (801).

7. The gas cylinder cap structure that is easy to disassemble and install according to claim 6, characterized in that: The bottleneck fixing shell (1) and the valve protection shell (2) of the same half bottle cap are integrally formed.

8. The structure of the gas cylinder cap that is convenient for disassembly and installation according to claim 7, characterized in that, A layer of lining layer (9) is provided on the inner sides of the bottleneck fixing shell (1) and the valve protection shell (2).

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