Anti-loosening sealing cover of pressure container

Abstract

The utility model discloses an anti-loosening sealing cover of a pressure container, which relates to the technical field of pressure containers, and comprises a cover body assembly, the cover body assembly comprises a plugging unit, a clamping unit and an anti-loosening unit; the plugging unit is used for plugging an opening of the pressure tank; the clamping unit is used for achieving connection and fixation of the plugging unit and the pressure container. The anti-loosening unit is used for achieving relative limiting and locking of the plugging unit, the clamping unit and the pressure container as a whole. The worm and gear speed reducer is arranged to drive the sealing cover, the second flange ring and the L-shaped clamping hook to rotate, convenient and fast fixing operation of the sealing cover and the pressure container can be achieved, the sealing cover and the pressure tank cannot rotate relatively when the interior of the pressure tank is in a high-pressure state in cooperation with the structural arrangement of the anti-loosening unit, and the sealing cover is prevented from rotating relative to the pressure tank. And the sealing cover is effectively prevented from loosening.

Description

Technical Field

[0001] This utility model relates to the field of pressure vessel technology, specifically an anti-loosening sealing cover for a pressure vessel. Background Technology

[0002] A pressure vessel is a closed device that holds gas or liquid and withstands a certain pressure.

[0003] The sealing cap of a pressure vessel is used to seal the vessel. If the connection between the sealing cap and the vessel becomes loose, the sealing cap may burst and shatter under pressure, posing a threat to the surrounding environment and personnel safety. Therefore, the anti-loosening function of the sealing cap is crucial. Based on this, an anti-loosening sealing cap for pressure vessels is provided. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-loosening sealing cover for pressure vessels in order to further improve the safety of pressure vessel use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-loosening sealing cover for a pressure vessel, comprising a cover assembly, wherein the cover assembly is rotatably connected to the pressure vessel via a fixing frame and an L-shaped rotating frame, and the pressure vessel comprises a pressure tank, a first flange ring, and a notch / groove;

[0006] The first flange ring is fixed to the outside of the opening end of the pressure tank. Multiple notches are provided, and the multiple notches are evenly distributed in a ring on the outside of the first flange ring.

[0007] The cover assembly includes a sealing unit, a snap-fit ​​unit, and an anti-loosening unit;

[0008] The sealing unit is used to seal the opening of the pressure tank;

[0009] The snap-fit ​​unit is used to connect and fix the sealing unit to the pressure vessel;

[0010] The anti-loosening unit is used to achieve relative positioning and locking of the sealing unit, the snap-fit ​​unit, and the pressure vessel.

[0011] As a further embodiment of this utility model: the sealing unit includes a sealing cover, a worm gear reducer, and a second flange ring;

[0012] The fixed frame is fixed to one side of the outer wall of the pressure tank, the L-shaped rotating frame is rotatably connected to the fixed frame and the transverse part of the L-shaped rotating frame extends to the front of the opening of the pressure tank, the worm gear reducer is fixedly installed on one side of the transverse part of the L-shaped rotating frame, the sealing cover is fixed to the output end of the worm gear reducer, the second flange ring is fixed to the outer side of one end of the sealing cover away from the worm gear reducer, and the sealing cover is closed to the first flange ring through the second flange ring to achieve the plugging of the opening of the pressure tank.

[0013] As a further scheme of the utility model: the clamping unit comprises an L-shaped clamping hook;

[0014] The number of the L-shaped clamping hooks is multiple and matches the number of the notch grooves, and the multiple L-shaped clamping hooks are fixed to one end of the second flange ring close to the first flange ring in a ring shape.

[0015] The distribution inner diameter of the longitudinal part of the multiple L-shaped clamping hooks matches the outer diameter of the first flange ring, the horizontal length of the longitudinal part of the L-shaped clamping hook matches the thickness of the first flange ring, and the distribution inner diameter of the transverse part of the multiple L-shaped clamping hooks is greater than the inner diameter of the notch groove.

[0016] When the second flange ring is close to the first flange ring, the transverse part of the L-shaped clamping hook passes through the area where the notch groove is located, the sealing cover, the second flange ring and the L-shaped clamping hook are driven to rotate by the worm gear reducer, the transverse part of the L-shaped clamping hook is dislocated from the notch groove, and the connection and fixation of the sealing cover and the pressure tank are realized.

[0017] As a further scheme of the utility model: the rear end face of the first flange ring is fixed with a limiting block, the L-shaped clamping hook is in contact with the limiting block when the L-shaped clamping hook is deviated from the notch groove, and the limiting block is used for limiting the rotation angle of the L-shaped clamping hook.

[0018] As a further scheme of the utility model: the anti-loosening unit comprises a second locking groove, a convex ring seat, a conical pressure block, a limiting plate and a cross-shaped lock rod.

[0019] The second locking groove is arranged on the inner side of the second flange ring, the first flange ring is provided with a first locking groove on the inner side, and the second locking groove is automatically aligned with the first locking groove when the second locking groove is in contact with the limiting block.

[0020] The convex ring seat is fixed to the inner side of the sealing cover, the conical pressure block penetrates through the convex ring seat from the rear end of the convex ring seat to the front end of the convex ring seat, and the limiting plate is fixed to the front end of the conical pressure block and is in contact with the front end of the convex ring seat.

[0021] The cross-shaped lock rod is limited and slidably connected in the convex ring seat, one end of the cross-shaped lock rod penetrates to the outside of the convex ring seat and is aligned with the second locking groove, and the other end of the cross-shaped lock rod extends to the inside of the convex ring seat and is attached to the inclined surface of the conical pressure block.

[0022] The conical pressure block is extruded by high pressure in the pressure tank and moves backward, the conical pressure block extrudes the cross-shaped lock rod to move outward and is clamped into the second locking groove and the inside of the first locking groove, so that the rotation locking of the sealing cover is realized.

[0023] As a further scheme of the utility model, the number of the second locking groove, the first locking groove and the cross-shaped lock rod is multiple and same, and the positions are one-to-one corresponding.

[0024] The "T"-shaped sliding groove for the horizontal expansion and contraction movement of the cross-shaped lock rod is arranged in the convex ring seat, springs are arranged between the two side protrusions of the cross-shaped lock rod and the inner wall side of the "T"-shaped sliding groove, the springs provide the thrust of the cross-shaped lock rod towards the conical pressure block, and the contact surface of the cross-shaped lock rod and the conical pressure block is in an inclined surface state.

[0025] Compared with the prior art, the utility model has the beneficial effects that:

[0026] The sealing cover, the second flange and the L-shaped clamping hook are driven to rotate by the worm gear reducer, the convenient fixing operation of the sealing cover and the pressure container can be realized, the relative rotation between the sealing cover and the pressure tank cannot be realized when the pressure tank is in a high pressure state, the loosening of the sealing cover is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 It is a structural schematic view of the utility model;

[0028] Fig. 2 It is another perspective structural schematic view of the utility model;

[0029] Fig. 3 It is an opening state schematic view of the cover assembly of the utility model;

[0030] Fig. 4 It is another perspective view of the opening state of the cover assembly of the utility model;

[0031] Fig. 5 It is a structural sectional view of the cover assembly of the utility model;

[0032] Fig. 6 It is a sectional split view of the cover assembly of the utility model.

[0033] In the figure: 1, pressure container; 101, pressure tank; 102, first flange ring; 103, notch groove; 104, limiting block; 105, first locking groove; 2, fixing frame; 3, L-shaped rotating frame; 4, cover assembly; 401, sealing cover; 402, worm gear reducer; 403, second flange ring; 404, L-shaped clamping hook; 405, second locking groove; 406, convex ring seat; 407, conical pressure block; 408, limiting plate; 409, cross-shaped locking rod; 410, spring. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] Please refer to Figs. 1-6 In the embodiments of the utility model, a sealing cover for preventing loosening of a pressure container comprises a cover assembly 4, the cover assembly 4 is rotationally connected with the pressure container 1 through a fixing frame 2 and an L-shaped rotating frame 3, the pressure container 1 comprises a pressure tank 101, a first flange ring 102 and a notch groove 103, the first flange ring 102 is fixed to the outer side of the opening end of the pressure tank 101, the notch groove 103 is provided with a plurality of notch grooves 103, the plurality of notch grooves 103 are evenly distributed on the outer side of the first flange ring 102 in a ring shape, the cover assembly 4 comprises a plugging unit, a clamping unit and an anti-loosening unit, the plugging unit is used for plugging the opening of the pressure tank 101, the clamping unit is used for connecting and fixing the plugging unit with the pressure container 1, and the anti-loosening unit is used for relatively limiting and locking the plugging unit and the clamping unit as a whole with the pressure container 1.

[0036] The plugging unit comprises a sealing cover 401, a worm gear reducer 402 and a second flange ring 403, the fixing frame 2 is fixed to one side of the outer wall of the pressure tank 101, the L-shaped rotating frame 3 is rotationally connected with the fixing frame 2, and the horizontal part of the L-shaped rotating frame 3 extends to the front of the opening of the pressure tank 101, the worm gear reducer 402 is fixedly installed on one side of the horizontal part of the L-shaped rotating frame 3, the sealing cover 401 is fixed to the output end of the worm gear reducer 402, the second flange ring 403 is fixed to the outer side of one end of the sealing cover 401 away from the worm gear reducer 402, and the sealing cover 401 is attached to the first flange ring 102 through the second flange ring 403 to achieve plugging of the opening of the pressure tank 101.

[0037] The clamping unit comprises L-shaped clamping hooks 404, the number of the L-shaped clamping hooks 404 is set to be multiple and matches the number of the notch grooves 103, and the multiple L-shaped clamping hooks 404 are fixed to one end of the second flange ring 403 close to the first flange ring 102 in a ring shape;

[0038] The distribution inner diameter of the longitudinal part of the multiple L-shaped clamping hooks 404 matches the outer diameter of the first flange ring 102, and the horizontal length of the longitudinal part of the L-shaped clamping hooks 404 matches the thickness of the first flange ring 102, and the distribution inner diameter of the transverse part of the multiple L-shaped clamping hooks 404 is greater than the inner diameter of the notch groove 103;

[0039] When the second flange ring 403 is close to the first flange ring 102, the transverse part of the L-shaped clamping hook 404 passes through the area where the notch groove 103 is located, the whole of the sealing cover 401, the second flange ring 403 and the L-shaped clamping hook 404 is driven to rotate by the worm gear reducer 402, the transverse part of the L-shaped clamping hook 404 is dislocated from the notch groove 103, and the connection and fixation of the sealing cover 401 and the pressure tank 101 are realized.

[0040] The rear end surface of the first flange ring 102 is fixed with a limiting block 104, the L-shaped clamping hook 404 is attached to the limiting block 104 when it is deviated from the notch groove 103, and the limiting block 104 is used to limit the rotation angle of the L-shaped clamping hook 404.

[0041] In the embodiment, the cover assembly 4 and the pressure container 1 can be approached and separated by rotating the L-shaped rotating frame 3 around the fixed frame 2 as the center, in the process of approaching the cover assembly 4 and the pressure container 1, the position of the L-shaped clamping hook 404 corresponds to the position of the notch groove 103, so that the L-shaped clamping hook 404 will not collide with the first flange ring 102.

[0042] When the second flange ring 403 is attached to the first flange ring 102, the worm gear reducer 402 is started, the whole of the sealing cover 401 and the second flange ring 403 is driven to rotate by the worm gear reducer 402, at this time, the L-shaped clamping hook 404 is deviated from the notch groove 103 synchronously, finally, the L-shaped clamping hook 404 is attached to the limiting block 104 and is completely dislocated from the notch groove 103, at this time, the cover assembly 4 and the pressure container 1 are connected and fixed (it is necessary to supplement that the pressure tank 101 is provided with corresponding inlet and outlet ports, temperature and pressure detection ports and the like structure, this part of structure is the conventional structure of the existing pressure tank 101, therefore, this part will not be described in detail, the control end of the worm gear reducer 402 and the pressure sensor on the pressure tank 101 are electrically connected to the external controller through wires, when the pressure in the pressure tank 101 has not recovered to normal pressure, the worm gear reducer 402 cannot be started and operated, thereby ensuring the safety of opening of the pressure tank 101).

[0043] Please refer to Figs. 2-6The anti-loosening unit comprises a second locking groove 405, a convex ring seat 406, a conical pressure block 407, a limiting plate 408, and a cross-shaped locking rod 409.

[0044] The second locking groove 405 is arranged on the inner side of the second flange 403, and the inner side of the first flange 102 is provided with a first locking groove 105. When the second locking groove 405 is in contact with the limiting block 104, the second locking groove 405 is automatically aligned with the first locking groove 105.

[0045] The convex ring seat 406 is fixed to the inner side of the sealing cover 401, the conical pressure block 407 penetrates through the convex ring seat 406 from the rear end of the convex ring seat 406 to the front end of the convex ring seat 406, and the limiting plate 408 is fixed to the front end of the conical pressure block 407 and is in contact with the front end of the convex ring seat 406.

[0046] The cross-shaped locking rod 409 is limited to slide in the inner part of the convex ring seat 406, one end of the cross-shaped locking rod 409 penetrates to the outside of the convex ring seat 406 and is in alignment with the second locking groove 405, and the other end of the cross-shaped locking rod 409 extends to the inner side of the convex ring seat 406 and is in contact with the inclined surface of the conical pressure block 407.

[0047] The high pressure in the pressure tank 101 extrudes the conical pressure block 407 to move backward, the conical pressure block 407 extrudes the cross-shaped locking rod 409 to move outward and is clamped in the inner side of the second locking groove 405 and the first locking groove 105, so as to realize the rotation locking of the sealing cover 401.

[0048] The number of the second locking groove 405, the first locking groove 105 and the cross-shaped locking rod 409 is multiple and the same, and the positions are one-to-one corresponding.

[0049] The inner part of the convex ring seat 406 is provided with a “T”-shaped sliding groove for the horizontal expansion and contraction movement of the cross-shaped locking rod 409, springs 410 are arranged between the two sides of the cross-shaped locking rod 409 and the inner wall side of the “T”-shaped sliding groove, the springs 410 provide a pushing force for the cross-shaped locking rod 409 towards the conical pressure block 407, and the contact surface between the cross-shaped locking rod 409 and the conical pressure block 407 is in an inclined surface state.

[0050] In the embodiment, after the cover assembly 4 and the pressure container 1 are connected, when the pressure in the pressure tank 101 is increased, the high pressure in the pressure tank 101 extrudes the conical pressure block 407 to move and extrude the multiple cross-shaped locking rods 409, so that the multiple cross-shaped locking rods 409 move outward synchronously and extrude the springs 410 to further contract, finally, the end of the cross-shaped locking rod 409 is inserted into the first locking groove 105 and the second locking groove 405, so that the sealing cover 401 and the pressure tank 101 cannot rotate relative to each other, and the loosening of the sealing cover 401 is effectively avoided.

[0051] When the pressure inside the pressure tank 101 returns to normal pressure, the plurality of cross-shaped locking rods 409 will reset under the elastic force of the spring 410, thereby releasing the locking with the first locking groove 105 and the second locking groove 405, and the conical pressure block 407 is also pressed to reset to the initial state, and then the worm gear reducer 402 is started to reset the rotation of the sealing cover 401, so that the opening operation of the sealing cover 401 is realized.

[0052] It should be noted that the first locking groove 105 and the second locking groove 405 are mainly arranged to make the thickness of the cross-shaped locking rod 409 thicker, and the cross-shaped locking rod 409 has stronger compression strength compared with the structure of only arranging the first locking groove 105 without arranging the second locking groove 405, thereby further improving the overall structural strength of the device.

[0053] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A loose seal cover of a pressure vessel, comprising a cover body assembly (4) which is rotatably connected with the pressure vessel (1) through a fixing frame (2) and an L-shaped rotating frame (3), characterized in that, The pressure container (1) comprises a pressure tank (101), a first flange ring (102), and a notch groove (103); The first flange ring (102) is fixed outside the opening end of the pressure tank (101), and the notch groove (103) is provided with a plurality of notch grooves (103) which are evenly distributed in the form of a ring outside the first flange ring (102); The cover assembly (4) comprises a plugging unit, a clamping unit, and an anti-loosening unit; The plugging unit is used for plugging the opening of the pressure tank (101); The clamping unit is used for connecting and fixing the plugging unit with the pressure container (1); The anti-loosening unit is used for relatively limiting and locking the plugging unit, the clamping unit, and the pressure container (1) as a whole.

2. A locking seal cover for a pressure vessel as defined in claim 1, wherein The plugging unit comprises a sealing cover (401), a worm gear reducer (402), and a second flange ring (403); The fixing frame (2) is fixed to one side of the outer wall of the pressure tank (101), the L-shaped rotating frame (3) is rotatably connected to the fixing frame (2), and the horizontal part of the L-shaped rotating frame (3) extends to the front of the opening of the pressure tank (101), the worm gear reducer (402) is fixedly installed on one side of the horizontal part of the L-shaped rotating frame (3), the sealing cover (401) is fixed to the output end of the worm gear reducer (402), and the second flange ring (403) is fixed to the outer side of one end of the sealing cover (401) away from the worm gear reducer (402). The sealing cover (401) is combined with the first flange ring (102) through the second flange ring (403) to achieve plugging of the opening of the pressure tank (101).

3. A locking seal cover for a pressure vessel as defined in claim 2, wherein The clamping unit comprises an L-shaped clamping hook (404); The number of L-shaped clamping hooks (404) is matched with the number of notch grooves (103), and a plurality of L-shaped clamping hooks (404) are fixed to one end of the second flange ring (403) close to the first flange ring (102) in the form of a ring; The distribution inner diameter of the longitudinal part of the plurality of L-shaped clamping hooks (404) matches the outer diameter of the first flange ring (102), and the horizontal length of the longitudinal part of the L-shaped clamping hook (404) matches the thickness of the first flange ring (102). The distribution inner diameter of the horizontal part of the plurality of L-shaped clamping hooks (404) is greater than the inner diameter of the notch groove (103). When the second flange ring (403) is close to the first flange ring (102), the horizontal part of the L-shaped clamping hook (404) penetrates the area where the notch groove (103) is located. The sealing cover (401), the second flange ring (403), and the L-shaped clamping hook (404) are driven by the worm gear reducer (402) to rotate as a whole, so that the horizontal part of the L-shaped clamping hook (404) is dislocated from the notch groove (103), thereby achieving connection and fixation of the sealing cover (401) and the pressure tank (101).

4. A locking seal cover for a pressure vessel as defined in claim 3, wherein The rear end surface of the first flange ring (102) is fixed with a limiting block (104), and the L-shaped clamping hook (404) is combined with the limiting block (104) when it is rotated away from the notch groove (103). The limiting block (104) is used for limiting the rotation angle of the L-shaped clamping hook (404).

5. A locking seal cover for a pressure vessel as defined in claim 4, wherein The anti-loosening unit comprises a second locking groove (405), a convex ring seat (406), a tapered pressure block (407), a limiting plate (408), and a cross-shaped locking rod (409); The second locking groove (405) is arranged on the inner side of the second flange ring (403), the first flange ring (102) is provided with a first locking groove (105) on the inner side, and the second locking groove (405) is automatically aligned with the first locking groove (105) when the second locking groove (405) is combined with the limiting block (104). The convex ring seat (406) is fixed on the inner side of the sealing cover (401), the tapered pressure block (407) penetrates through the convex ring seat (406) from the rear end of the convex ring seat (406) to the front end of the convex ring seat (406), and the limiting plate (408) is fixed on the front end of the tapered pressure block (407) and combined with the front end of the convex ring seat (406). The cross-shaped locking rod (409) is slidingly connected to the inside of the convex ring seat (406), one end of the cross-shaped locking rod (409) penetrates to the outside of the convex ring seat (406) and is aligned with the second locking groove (405), and the other end of the cross-shaped locking rod (409) extends to the inside of the convex ring seat (406) and is combined with the inclined surface of the tapered pressure block (407). The tapered pressure block (407) is extruded by the high pressure in the pressure tank (101) to move backward, the cross-shaped locking rod (409) is extruded by the tapered pressure block (407) to move outward and is clamped into the second locking groove (405) and the first locking groove (105), so as to realize the rotation locking of the sealing cover (401).

6. A locking seal cover for a pressure vessel as defined in claim 5, wherein The number of the second locking groove (405), the first locking groove (105), and the cross-shaped locking rod (409) is multiple and same, and the positions are one-to-one corresponding. The convex ring seat (406) is provided with a "T" type sliding groove for the horizontal expansion and contraction movement of the cross-shaped locking rod (409), springs (410) are arranged between the two sides of the cross-shaped locking rod (409) and the inner wall side of the "T" type sliding groove, the springs (410) provide a pushing force of the cross-shaped locking rod (409) towards the tapered pressure block (407), and the contact surface between the cross-shaped locking rod (409) and the tapered pressure block (407) is inclined.

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