Double-seal washing cabin cover

Abstract

The utility model discloses a double-seal washing cabin cover, and relates to the field of sealing devices. The double-sealing washing cabin cover comprises a first sealing ring, a second sealing ring, a cover plate, a pressurizing frame and a pressing mechanism, the cover plate is provided with a first annular containing groove, the first sealing ring is embedded in the first annular containing groove in an interference mode, an opening of the first annular containing groove faces downwards, a second annular containing groove is formed in the periphery of a warehouse surrounding plate, and the pressurizing frame is arranged on the second annular containing groove. The second sealing ring is embedded in the second annular containing groove in an interference mode, the pressurizing frame is arranged above the cover plate and connected with the cover plate in a hinged mode, one end of the pressurizing frame is connected with the outer side of the warehouse surrounding plate in a hinged mode, and a pressing mechanism is fixedly arranged at the other end of the pressurizing frame. Through the synergistic effect of double seals, the sealing reliability under the extreme working condition is remarkably improved.

Description

Technical Field

[0001] This application relates to the field of sealing device technology, and in particular to a double-sealed wash tank cover. Background Technology

[0002] In the transportation of goods in the chemical, pharmaceutical, and food industries, the sealing performance of cargo holds is directly related to cargo safety and environmental protection. Traditional cargo hold covers mostly adopt a single sealing structure, which has significant drawbacks: the limitation of unidirectional sealing, relying solely on a single sealing ring to compress and seal the top of the cargo hold, cannot simultaneously prevent the leakage of internal media, such as volatile gases and corrosive liquids, as well as the intrusion of external pollutants, such as moisture and dust. Leakage risks easily occur under transportation vibrations or temperature and pressure fluctuations; the sealing reliability is insufficient, the compression tolerance of a single sealing ring is low, and it is prone to failure due to wear or aging after long-term use, especially with a significantly shortened lifespan under high pressure and highly corrosive media conditions. Utility Model Content

[0003] To address the problems of unreliable one-way sealing and easy leakage under extreme operating conditions in existing wash tank covers, this application provides a double-sealed wash tank cover, the specific solution of which is as follows:

[0004] The double-sealed wash tank cover is hinged to the outer side of the cargo hold enclosure. The double-sealed wash tank cover includes a first sealing ring, a second sealing ring, a cover plate, a pressure frame, and a clamping mechanism. The cover plate has a first annular receiving groove, in which the first sealing ring is interference-fitted, with the opening of the first annular receiving groove facing downwards. The outer periphery of the cargo hold enclosure has a second annular receiving groove, in which the second sealing ring is interference-fitted. The pressure frame is positioned above the cover plate and hinged to the cover plate. One end of the pressure frame is hinged to the outer side of the cargo hold enclosure, and the other end of the pressure frame is fixed with the clamping mechanism. When the cargo hold needs to be sealed, the clamping mechanism is tightened to press the pressure frame downwards, causing the first sealing ring to press against the top of the cargo hold enclosure, and the second sealing ring to press against the first annular side of the cover plate. When the cargo hold needs to be opened, the clamping mechanism is released to allow the pressure frame to rotate upwards, moving the cover plate away from the cargo hold enclosure.

[0005] Preferably, the opening of the second annular receiving groove faces outward, and the second sealing ring partially protrudes from the opening plane of the second annular receiving groove. When the pressing mechanism is tightened, the protrusion of the second sealing ring presses against the inner side of the first annular side circumference of the cover plate.

[0006] Preferably, the outer periphery of the warehouse enclosure is provided with a first annular protrusion and a second annular protrusion, and a second annular receiving groove is formed between the first annular protrusion and the second annular protrusion.

[0007] Preferably, the opening of the second annular receiving groove faces upward, and when the clamping mechanism is tightened, the second sealing ring presses against the lower end of the first annular side periphery of the cover plate.

[0008] Preferably, an L-shaped enclosure is provided along the outer perimeter of the warehouse enclosure, the L-shaped enclosure is fixedly connected to the warehouse enclosure, and the L-shaped enclosure and the warehouse enclosure form the second annular receiving groove.

[0009] Preferably, the cover plate includes a cover plate body, a first annular side periphery disposed along the cover plate body, and a second annular side periphery disposed inside the first annular side periphery. Both the first annular side periphery and the second annular side periphery are fixedly connected to the cover plate body, and a first annular receiving groove is formed between the first annular side periphery and the second annular side periphery.

[0010] Preferably, the clamping mechanism includes a clamping block, a handwheel, and a fixing rod. One end of the clamping block is fixedly connected to the pressure frame, and the other end of the clamping block is provided with a mounting hole. The fixing rod passes through the mounting hole, and the lower end of the fixing rod is fixedly connected to the cargo compartment panel. The upper end of the fixing rod is threadedly connected to the handwheel. Tightening the handwheel can cause the handwheel to press down on the clamping block, thereby compressing the pressure frame.

[0011] Preferably, the clamping mechanism further includes an extension block, one end of which is fixedly connected to the cargo compartment panel, and the other end of which is hinged to the lower end of the fixing rod.

[0012] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0013] 1. Through the interference fit between the first sealing ring and the top of the cargo hold enclosure, and the compression contact between the second sealing ring and the side of the cover plate, a two-way sealing barrier is formed. The first sealing ring presses down on the top of the cargo hold enclosure, effectively preventing the leakage of volatile gases, liquids or dust from inside the cargo hold, thus avoiding pollution of the external environment. The second sealing ring squeezes the side of the cover plate laterally or longitudinally, blocking external air, moisture or impurities from entering the cargo hold, ensuring the stability of the cargo storage environment. The synergistic effect of the dual seals significantly improves the sealing reliability under extreme working conditions.

[0014] 2. The clamping mechanism can precisely control the vertical pressure of the pressure frame on the cover plate through the threaded transmission of the handwheel and the fixed rod. The hinged design of the extension block allows the fixed rod to adaptively adjust its angle as the pressure frame moves, avoiding lateral stress during the clamping process that could cause uneven wear of the sealing ring. The adaptive clamping structure of the clamping mechanism makes the compression of the sealing contact surface adjustable, which can meet the sealing requirements of different media, such as corrosive liquids and high-pressure gases, and extend the service life of the sealing ring.

[0015] 3. The pressure frame, cover plate, and cargo compartment panels are connected by multiple hinges. When the clamping mechanism is released, the pressure frame rotates upward and drives the cover plate to move and lift simultaneously, reducing the top space required by the traditional flip-top structure. It is especially suitable for cargo compartment scenarios with limited height. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a structural schematic diagram of the double-sealed wash tank cover of Embodiment 1 of this application;

[0018] Figure 2 This is a partial structural schematic diagram of the double-sealed wash tank cover of Embodiment 1 of this application;

[0019] Figure 3 This is a structural schematic diagram of the double-sealed wash tank cover of Embodiment 2 of this application;

[0020] Figure 4 This is a partial structural schematic diagram of the double-sealed wash tank cover of Embodiment 2 of this application.

[0021] In the diagram: 111, First sealing ring; 112, Second sealing ring; 11, Cover plate; 12, Pressure frame; 14, Pressing mechanism; 170, First annular receiving groove; 13-a, Second annular receiving groove; 13-b, Second annular receiving groove; 2, Cargo compartment enclosure; 21, Top of cargo compartment enclosure; 17-a, First annular side perimeter; 17-b, Second annular side perimeter; 16-a, First annular protrusion; 16-b, Second annular protrusion; 16-c, L-shaped enclosure; 142, Pressing block; 141, Handwheel; 143, Fixing rod; 144, Extension block. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0023] Example 1

[0024] Please refer to the following: Figure 1 and Figure 2The double-sealed wash tank cover is hinged to the outer side of the cargo hold enclosure 2. The double-sealed wash tank cover includes a first sealing ring 111, a second sealing ring 112, a cover plate 11, a pressure frame 12, and a pressing mechanism 14. The cover plate 11 has a first annular receiving groove 170, and the first sealing ring 111 is interference-fitted into the first annular receiving groove 170. The opening of the first annular receiving groove 170 faces downward. The outer periphery of the cargo hold enclosure 2 has a second annular receiving groove 13-a, and the second sealing ring 112 is interference-fitted into the second annular receiving groove 13-a. The pressure frame 12 is located above the cover plate 11. 2 is hinged to the cover plate 11, one end of the pressure frame 12 is hinged to the outer side of the cargo enclosure 2, and the other end of the pressure frame 12 is fixed with a pressing mechanism 14; when the cargo enclosure needs to be sealed, the pressing mechanism 14 is tightened so that the pressing mechanism 14 presses the pressure frame 12 downward, the first sealing ring 111 presses the top 21 of the cargo enclosure 2, and the second sealing ring 112 presses the first annular side circumference 17-a of the cover plate 11; when the cargo enclosure needs to be opened, the pressing mechanism 14 is released so that the pressure frame 12 can rotate upward to drive the cover plate 11 away from the cargo enclosure 2.

[0025] Specifically, please refer to the following: Figure 2 The opening of the second annular receiving groove 13-a faces outward, and the second sealing ring 112 partially protrudes from the opening plane of the second annular receiving groove 13-a. When the pressing mechanism 14 is tightened, the protrusion of the second sealing ring 112 presses against the inner side of the first annular side circumference 17-a of the cover plate 11.

[0026] Specifically, please refer to the following: Figure 2 The outer periphery of the cargo compartment panel 2 is provided with a first annular protrusion 16-a and a second annular protrusion 16-b, and a second annular receiving groove 13-a is formed between the first annular protrusion 16-a and the second annular protrusion 16-b.

[0027] Specifically, please refer to the following: Figure 1 The cover plate 11 includes a cover plate 11 body, a first annular side periphery 17-a disposed along the cover plate 11 body, and a second annular side periphery 17-b disposed inside the first annular side periphery 17-a. The first annular side periphery 17-a and the second annular side periphery 17-b are both fixedly connected to the cover plate 11 body, and a first annular receiving groove 170 is formed between the first annular side periphery 17-a and the second annular side periphery 17-b.

[0028] Specifically, please refer to the following: Figure 1The pressing mechanism 14 includes a pressing block 142, a handwheel 141, and a fixing rod 143. One end of the pressing block 142 is fixedly connected to the pressure frame 12, and the other end of the pressing block 142 is provided with a mounting hole. The fixing rod 143 passes through the mounting hole, and the lower end of the fixing rod 143 is fixedly connected to the cargo compartment panel 2. The upper end of the fixing rod 143 is threadedly connected to the handwheel 141. Tightening the handwheel 141 can cause the handwheel 141 to press down on the pressing block 142, thereby compressing the pressure frame 12.

[0029] Specifically, please refer to the following: Figure 1 The clamping mechanism 14 also includes an extension block 144, one end of which is fixedly connected to the cargo compartment panel 2, and the other end of which is hinged to the lower end of the fixing rod 143.

[0030] The double-sealed wash tank cover is used as follows: By rotating the handwheel 141 of the clamping mechanism 14, the fixed rod 143 is driven to press down, so that the pressure frame 12 applies vertical pressure to the cover plate 11, forcing the first sealing ring 111 to press against the top 21 of the cargo compartment enclosure. At the same time, the protrusion of the second sealing ring 112 laterally presses against the inner side of the first annular side circumference 17-a of the cover plate 11, forming a two-way sealing barrier. When opening, the handwheel 141 is released and the pressure frame 12 is raised. The cover plate 11 moves away from the cargo compartment enclosure 2 with the hinge linkage. The first sealing ring 111 and the second sealing ring 112 automatically reset. During the operation, the angle is adaptively adjusted by the hinge design of the extension block 144 to ensure uniform force and no additional maintenance is required.

[0031] Example 2

[0032] Please refer to the following: Figure 3 and Figure 4 Unlike Embodiment 1, the opening of the second annular receiving groove 13-b faces upward, and when the pressing mechanism 14 is tightened, the second sealing ring 112 presses the lower end of the first annular side periphery 17-a of the cover plate 11.

[0033] Specifically, please refer to the following: Figure 4 An L-shaped enclosure 16-c is provided along the outer perimeter of the warehouse enclosure 2. The L-shaped enclosure 16-c is fixedly connected to the warehouse enclosure 2, and the L-shaped enclosure 16-c and the warehouse enclosure 2 form the second annular receiving groove 13-b.

[0034] The double-sealed wash tank cover of Example 2 achieves longitudinal sealing of the second sealing ring 112 by adjusting the opening direction and installation structure of the second annular receiving groove 13-b. The operation steps of its pressing mechanism 14 and the opening and closing action of the cover plate 11 are the same as those of Example 1, so the usage method is the same as that of Example 1.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0036] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of this application and its equivalents, this application also intends to include such modifications and variations.

Claims

1. A double-sealed wash tank cover, characterized in that, The double-sealed wash tank cover is hinged to the outer side of the cargo hold enclosure. The double-sealed wash tank cover includes a first sealing ring, a second sealing ring, a cover plate, a pressure frame, and a clamping mechanism. The cover plate has a first annular receiving groove, in which the first sealing ring is interference-fitted, with the opening of the first annular receiving groove facing downwards. The outer periphery of the cargo hold enclosure has a second annular receiving groove, in which the second sealing ring is interference-fitted. The pressure frame is positioned above the cover plate and hinged to the cover plate. One end of the pressure frame is hinged to the outer side of the cargo hold enclosure, and the other end of the pressure frame is fixed with the clamping mechanism. When the cargo hold needs to be sealed, the clamping mechanism is tightened to press the pressure frame downwards, causing the first sealing ring to press against the top of the cargo hold enclosure, and the second sealing ring to press against the first annular side of the cover plate. When the cargo hold needs to be opened, the clamping mechanism is released to allow the pressure frame to rotate upwards, moving the cover plate away from the cargo hold enclosure.

2. The double-sealed wash tank cover as described in claim 1, characterized in that, The opening of the second annular receiving groove faces outward, and the second sealing ring partially protrudes from the opening plane of the second annular receiving groove. When the clamping mechanism is tightened, the protrusion of the second sealing ring presses against the inner side of the first annular side circumference of the cover plate.

3. The double-sealed wash tank cover as described in claim 2, characterized in that, The outer perimeter of the warehouse enclosure is provided with a first annular protrusion and a second annular protrusion, and a second annular receiving groove is formed between the first annular protrusion and the second annular protrusion.

4. The double-sealed wash tank cover as described in claim 1, characterized in that, With the opening of the second annular receiving groove facing upward, when the clamping mechanism is tightened, the second sealing ring presses against the lower end of the first annular side periphery of the cover plate.

5. The double-sealed wash tank cover as described in claim 4, characterized in that, An L-shaped enclosure is provided along the outer perimeter of the warehouse enclosure, and the L-shaped enclosure is fixedly connected to the warehouse enclosure, forming the second annular receiving groove with the warehouse enclosure.

6. The double-sealed wash tank cover as described in any one of claims 1-5, characterized in that, The cover plate includes a cover plate body, a first annular side periphery disposed along the cover plate body, and a second annular side periphery disposed inside the first annular side periphery. Both the first annular side periphery and the second annular side periphery are fixedly connected to the cover plate body, and a first annular receiving groove is formed between the first annular side periphery and the second annular side periphery.

7. The double-sealed wash tank cover as described in any one of claims 1-5, characterized in that, The clamping mechanism includes a clamping block, a handwheel, and a fixing rod. One end of the clamping block is fixedly connected to the pressure frame, and the other end of the clamping block is provided with a mounting hole. The fixing rod passes through the mounting hole, and the lower end of the fixing rod is fixedly connected to the cargo compartment panel. The upper end of the fixing rod is threadedly connected to the handwheel. Tightening the handwheel can cause the handwheel to press down on the clamping block, thereby compressing the pressure frame.

8. The double-sealed wash tank cover as described in claim 7, characterized in that, The clamping mechanism also includes an extension block, one end of which is fixedly connected to the cargo compartment panel, and the other end of which is hinged to the lower end of the fixed rod.

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