A sealed switch device

Abstract

The present invention relates to the technical field of pressure vessel switches, and discloses a sealed switch device, including a cylinder, a cover, a sealing ring, an abutment block and an adjusting member, wherein the cover can be rotatably covered on the cylinder, the cover is provided with a first protrusion, the sealing ring is sleeved on the outside of the first protrusion, the outer peripheral wall of the sealing ring is provided with a first groove extending in the radial direction, the abutment block slides and abuts in the first groove, the inner side wall of the cylinder is provided with a boss, the upper surface of the boss is provided with a limiting groove extending in the radial direction, the abutment block is provided in the limiting groove, the adjusting member passes through the cylinder and is connected to the abutment block, and the adjusting member is threadedly connected to the cylinder. The sealed switch device of the present invention has good sealing performance and high connection reliability.

Description

Technical Field

[0001] The invention relates to the technical field of pressure vessel switches, and in particular to a sealed switch device. Background Art

[0002] At present, traditional pressure vessels are mostly sealed by bolting to connect with the cylinder body. In terms of sealing principle, traditional flange bolt-fastened pressure vessels rely on bolt connection to compress the lip sealing gasket for sealing. The sealing depends on the mutual clamping force of the two flanges along the thickness direction, which is insufficient in stability and has the problem of poor sealing. Summary of the invention

[0003] The purpose of the present invention is to provide a sealed switch device with good sealing performance to improve the sealing performance of the pressure vessel switch.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a sealed switch device, including a cylinder, a cover body, a sealing ring, an abutment block and an adjusting piece, the cover body can be rotatably covered on the cylinder, the cover body is provided with a first protrusion, the sealing ring is sleeved on the outside of the first protrusion, the outer peripheral wall of the sealing ring is provided with a first groove extending in the radial direction, the abutment block slides and abuts in the first groove, the inner side wall of the cylinder is provided with a boss, the upper surface of the boss is provided with a limiting groove extending in the radial direction, the abutment block is arranged in the limiting groove, the adjusting piece passes through the cylinder and is connected with the abutment block, and the adjusting piece is threadedly connected to the cylinder.

[0005] As a preferred solution, the cylinder is provided with a clamping part and a supporting surface, the clamping parts are provided in a plurality and are arranged at intervals on the inner peripheral wall of the cylinder, and a mounting groove is formed between the clamping part and the supporting surface;

[0006] The outer peripheral wall of the cover body is provided with a plurality of radially protruding and spaced-apart clamping parts, and the clamping parts are embedded in the mounting grooves.

[0007] As a preferred solution, a transition groove is provided between two adjacent clamping portions, and the circumferential length of the transition groove is greater than the circumferential length of the clamping portion.

[0008] As a preferred solution, the clamping portions are evenly arranged on the inner peripheral wall of the cylinder along the circumferential direction, and the clamping portions are evenly arranged on the outer peripheral wall of the cover along the circumferential direction.

[0009] As a preferred solution, the cover body is provided with a second protrusion, and the second protrusion is embedded in the cylinder body.

[0010] As a preferred solution, the abutting surface between the first groove and the abutting block is a wedge-shaped surface, and the wedge-shaped surface extends from bottom to top and tilts outward.

[0011] As a preferred solution, the inner peripheral wall of the sealing ring is provided with a protrusion, the outer peripheral wall of the first protrusion is provided with a second groove, and the protrusion is embedded in the second groove.

[0012] As a preferred solution, the sealing ring is an O-ring.

[0013] As a preferred solution, the sealing ring is provided with a third protrusion, and the third protrusion is provided in the gap between the first protrusion and the boss.

[0014] As a preferred solution, it also includes a pull rod for rotating the cover body, the upper surface of the cover body is provided with a convex block with a through hole, and the pull rod is connected to the through hole.

[0015] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0016] 1. The sealed switch device of the embodiment of the present invention is provided with a sealing ring between the cylinder and the cover, the sealing ring is provided with a first groove, an abutment block is provided in the first groove, the position of the abutment block is adjusted by an adjusting member, and the pressure of the abutment block on the sealing ring is increased, so that the sealing ring is tightly fitted to the circumference of the first protrusion of the cover, thereby improving the sealing performance of the connection between the cylinder and the cover.

[0017] 2. By adjusting the position of the abutment block, the extrusion force applied to the sealing ring can be adjusted. The extrusion force makes the sealing ring fit tightly against the first protrusion of the cover body, thereby improving the reliability of the connection between the cover body and the sealing ring.

[0018] 3. The abutment block abuts in the first groove to prevent the sealing ring from rotating with the cover body when the cover body rotates. The abutment block has a limiting effect on the sealing ring and a positioning effect on the sealing ring during installation.

[0019] 4. A boss is provided on the inner side wall of the cylinder, and a limiting groove is provided on the boss to limit and guide the moving position of the abutment block and prevent the abutment block from detaching from the boss of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 A magnified view of part A;

[0022] Figure 3 is a top view of an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of the sealing ring structure of an embodiment of the present invention;

[0024] Figure 5 2 is a schematic diagram of the cover structure of an embodiment of the present invention.

[0025] In the figure:

[0026] 1. Cylinder; 11. Boss; 12. Limiting groove; 13. Clamping part; 14. Support surface; 15. Mounting groove; 16. Transition groove; 2. Cover; 21. First protrusion; 22. Clamping part; 23. Transition part; 24. Second protrusion; 25. Second groove; 26. Through hole; 27. Projection; 3. Sealing ring; 31. First groove; 32. Wedge surface; 33. Raised part; 34. Third protrusion; 4. Abutment block; 5. Adjustment member; 6. Pull rod. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. used in the present invention to indicate the orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first", "second", and "third" used in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance, and therefore cannot be understood as a limitation on the present invention.

[0029] like Figure 1 As shown, a sealed switch device of a preferred embodiment of the embodiment of the present invention comprises a cylinder 1, a cover 2, a sealing ring 3, an abutment block 4 and an adjusting member 5. The cover 2 is rotatably covered on the cylinder 1, the cover 2 is provided with a first protrusion 21, the sealing ring 3 is sleeved on the outside of the first protrusion 21, the outer peripheral wall of the sealing ring 3 is provided with a first groove 31 extending in the radial direction, the abutment block 4 is slidably abutted in the first groove 31, the inner side wall of the cylinder 1 is provided with a boss 11, the upper surface of the boss 11 is provided with a limiting groove 12 extending in the radial direction, the abutment block 4 is arranged in the limiting groove 12, the adjusting member 5 passes through the cylinder 1 and is connected with the abutment block 4, and the adjusting member 5 is threadedly connected to the cylinder 1.

[0030] A sealing ring 3 is provided between the cylinder 1 and the cover 2 of the present invention. The sealing ring 3 is provided with a plurality of first grooves 31. The first grooves 31 can be provided at intervals or along the circumference of the sealing ring 3. The abutment block 4 abuts in the first grooves 31. The position of the abutment block 4 is adjusted by the adjusting member 5, so that the sealing ring 3 is pressed tightly against the circumference of the first protrusion 21 of the cover 2, thereby improving the reliability of the connection between the sealing ring 3 and the cover 2. The adjusting member 5 can be a screw, or after determining the installation position of the abutment block 4, the abutment block 4 can be fastened and connected by screws to fix the position of the abutment block 4. A boss 11 is provided on the cylinder 1, and a limiting groove 12 is provided on the boss 11, which has a guiding effect on the movement of the abutment block 4 and can also prevent the abutment block 4 from being separated from the boss 11, thereby improving the reliability of the installation of the abutment block 4 and the sealing ring 3. The abutment block 4 applies pressure to the sealing ring 3, thereby improving the sealing performance of the connection between the cylinder 1 and the cover 2. In addition, the abutment block 4 can prevent the sealing ring 3 from rotating with the cover body 2 when the cover body 2 rotates. The abutment block 4 has a limiting effect on the sealing ring 3, and has a positioning effect on the sealing ring 3 during installation.

[0031] Furthermore, the cylinder 1 is provided with a clamping portion 13 and a supporting surface 14. The clamping portions 13 are provided in a plurality and are arranged at intervals on the inner peripheral wall of the cylinder 1. A mounting groove 15 is formed between the clamping portion 13 and the supporting surface 14. The outer peripheral wall of the cover 2 is provided with a plurality of radially protruding and spaced clamping portions 22, which are embedded in the mounting groove 15. The number of the clamping portions 22 is the same as that of the mounting groove 15. When locking the cover 2, the clamping portions 22 can be screwed into the mounting groove 15 by rotating the cover 2. When opening the cover 2, the cover 2 can be opened by screwing the clamping portions 22 out of the mounting groove 15. A transition portion 23 is provided between the clamping portions 22, which can cooperate with the clamping portions 13 to facilitate the installation of the cover 2.

[0032] Furthermore, a transition groove 16 is provided between two adjacent clamping parts 13, and the circumferential length of the transition groove 16 is greater than the circumferential length of the clamping part 22. The cover body 2 is rotated to disengage the clamping part 22 of the cover body 2 from the mounting groove 15 of the cylinder body 1 and move to the transition groove 16, thereby opening the cover body 2.

[0033] Furthermore, the clamping parts 13 are evenly arranged on the inner circumferential wall of the cylinder 1 along the circumferential direction, and the clamping parts 22 are evenly arranged on the outer circumferential wall of the cover 2 along the circumferential direction. The number of the clamping parts 13 and the clamping parts 22 is the same, and they are used in combination. In this way, the cover 2 does not need to be connected to the cylinder 1 through fasteners, and when the pressure is high, the friction between the clamping parts 13 and the clamping parts 22 can prevent the cover 2 from being opened by mistake, thereby improving the safety performance.

[0034] Furthermore, the cover 2 is provided with a second protrusion 24, which is embedded in the cylinder 1. The second protrusion 24 is embedded in the inner cavity of the cylinder 1 to close the opening of the cylinder 1, and is sealed by the sealing ring 3 to ensure that the interior of the pressure container is in a closed state.

[0035] Furthermore, the contact surface between the first groove 31 and the contact block 4 is a wedge-shaped surface 32, which extends from bottom to top and tilts outward. Through the wedge-shaped surface 32, the pressure of the contact block 4 can be decomposed into two vertical forces applied to the sealing ring 3, so that the sealing ring 3 is tightly fitted on the outer circumferential surface of the first protrusion 21 of the cover body 2, thereby improving the installation reliability of the sealing ring 3 and the cover body 2, and also improving the sealing performance of the cylinder body 1 and the cover body 2.

[0036] Furthermore, a protrusion 33 is provided on the inner peripheral wall of the sealing ring 3. A second groove 25 is provided on the outer peripheral wall of the first protrusion 21, and the protrusion 33 is embedded in the second groove 25. By installing the protrusion 33 in the second groove 25, the sealing ring 3 can be prevented from being separated from the cover body 2 during the installation process, thereby limiting the position of the sealing ring 3.

[0037] Furthermore, the sealing ring 3 is an O-type sealing ring, which can fit the circumferential shape of the first protrusion 21 of the cover body 2, making it easy to install the sealing ring 3 and helping to ensure the sealing of the cylinder body 1 and the cover body 2.

[0038] Furthermore, the sealing ring 3 is provided with a third protrusion 34, and the third protrusion 34 is provided in the gap between the first protrusion 21 and the boss 11. There is a gap between the first protrusion 21 of the cover body 2 and the boss 11. By providing the third protrusion 34 in the gap, the connection sealing performance between the cylinder body 1 and the cover body 2 can be improved.

[0039] Furthermore, a pull rod 6 for rotating the cover body 2 is included, and a convex block 27 with a through hole 26 is provided on the upper surface of the cover body, and the pull rod 6 is connected to the through hole 26. A stop block is provided at the head of the pull rod 6, and a nut is provided at the tail to prevent the pull rod 6 from being disengaged from the through hole 26. By rotating the pull rod 6, the clamping portion 22 of the cover body 2 can be disengaged from the mounting groove 15 or the clamping portion 22 can be rotated into the mounting groove 15, thereby opening or locking the cover body 2.

[0040] The assembly process of the present invention is as follows: pre-sleeve the sealing ring 3 on the first protrusion 21, or place the sealing ring 3 in the cylinder 1, then install the cover 2 on the cylinder 1, rotate the cover 2 to screw the clamping portion 22 into the installation groove 15, and finally rotate the adjusting member 5 to make the abutment block 4 push the sealing ring 3 so that the sealing ring 3 is tightly pressed against the cover 2.

[0041] In summary, the embodiment of the present invention provides a sealed switch device, wherein a sealing ring is provided between the cylinder and the cover, the sealing ring is provided with a first groove, the abutment block abuts in the first groove, and the position of the abutment block is adjusted by the adjusting member, so that the sealing ring is pressed tightly against the circumference of the first protrusion of the cover, thereby improving the reliability of the connection between the sealing ring and the cover. A limiting groove is provided on the boss of the inner side wall of the cylinder, which has a guiding effect on the movement of the abutment block and can also prevent the abutment block from detaching from the boss, thereby improving the reliability of the installation of the abutment block and the sealing ring, and the sealing performance of the connection between the cylinder and the cover is improved by applying pressure to the sealing ring through the abutment block.

[0042] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A sealed switch device, characterized in that: The invention comprises a cylinder, a cover, a sealing ring, an abutment block and an adjusting member, wherein the cover can be rotatably covered on the cylinder, the cover is provided with a first protrusion, the sealing ring is sleeved on the outer side of the first protrusion, the outer peripheral wall of the sealing ring is provided with a plurality of first grooves arranged at intervals, the first grooves extend radially, the abutment block slides and abuts in the first grooves, the inner side wall of the cylinder is provided with a boss, the upper surface of the boss is provided with a limiting groove extending radially, the abutment block is arranged in the limiting groove, the adjusting member passes through the cylinder and is connected with the abutment block, and the adjusting member is threadedly connected with the cylinder; The cover body is provided with a second protrusion, and the second protrusion is embedded in the cylinder body; The abutting surface between the first groove and the abutting block is a wedge-shaped surface, and the wedge-shaped surface extends from bottom to top and tilts outward; The sealing ring is provided with a third protrusion, and the third protrusion is arranged in the gap between the first protrusion and the boss.

2. The sealed switch device according to claim 1, characterized in that: The cylinder is provided with a clamping part and a supporting surface, the clamping parts are provided in a plurality and are arranged at intervals on the inner peripheral wall of the cylinder, and a mounting groove is formed between the clamping part and the supporting surface; The outer peripheral wall of the cover body is provided with a plurality of radially protruding and spaced-apart clamping parts, and the clamping parts are embedded in the mounting grooves.

3. The sealed switch device according to claim 2, characterized in that: A transition groove is provided between two adjacent clamping parts, and the circumferential length of the transition groove is greater than the circumferential length of the clamping part.

4. The sealed switch device according to claim 2 or 3, characterized in that: The clamping parts are evenly arranged on the inner peripheral wall of the cylinder along the circumferential direction, and the clamping parts are evenly arranged on the outer peripheral wall of the cover body along the circumferential direction.

5. The sealed switch device according to claim 1, characterized in that: The inner peripheral wall of the sealing ring is provided with a convex portion, the outer peripheral wall of the first protrusion is provided with a second groove, and the convex portion is embedded in the second groove.

6. The sealed switch device according to claim 1 or 5, characterized in that: The sealing ring is an O-type sealing ring.

7. The sealed switch device according to claim 1, characterized in that: It also includes a pull rod for rotating the cover body. The upper surface of the cover body is provided with a convex block with a through hole, and the pull rod is connected to the through hole.

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