Tank opening locking device of glass fiber reinforced plastic food water tank

Abstract

The utility model relates to the field of water tanks, in particular to a glass fiber reinforced plastic food water tank opening locking device which comprises a tank body and a fixing structure, the fixing structure comprises a fixing cylinder and a first sealing ring, the fixing cylinder is fixedly connected in an opening of the tank body, an outer sealing structure and an inner sealing structure are installed in the fixing cylinder, and the outer sealing structure comprises a first sealing cover and a sealing seat. The inner sealing structure comprises a second sealing ring and a second sealing cover, the inner wall of the fixing cylinder is fixedly connected with the second sealing ring and the first sealing ring which are distributed left and right, the left end of the second sealing ring is hinged to the second sealing cover, and the center of the left end of the first sealing cover is fixedly connected with a sealing seat. The double sealing effect can be provided for the tank body, then the space between the first sealing cover and the second sealing cover can be vacuumized through the vacuum pump, the first sealing cover and the second sealing cover are pushed by atmospheric pressure to be attached to and press the first sealing ring and the second sealing ring, and the sealing effect of the tank body is improved.

Description

Technical Field

[0001] This utility model belongs to the field of water tanks, specifically relating to a locking device for the mouth of a fiberglass food water tank. Background Technology

[0002] Fiberglass food water tanks are containers commonly used to store drinking water or food-grade liquids. Their structural design takes into account strength, corrosion resistance, and hygiene requirements. In the field of food storage and transportation, the sealing performance of food water tanks is crucial, as it directly affects the quality, safety, and shelf life of food.

[0003] The sealing device of a typical food water container usually uses a flange structure to fix the sealing cap to the container opening. The sealing of the water container is achieved through the cooperation between the flange and the container opening and the elastic deformation of the sealing ring. This sealing method can meet basic sealing requirements to a certain extent. The structure is relatively simple and easy to install and disassemble. However, the sealing structure of a single flange and sealing ring has obvious limitations. During long-term use, the sealing ring will gradually age and wear due to compression, friction, and environmental factors such as temperature changes, humidity, and food component corrosion, resulting in reduced elasticity and decreased sealing performance. At the same time, the flange connection may loosen due to vibration, collision, or long-term stress, making the fit between the flange and the container opening worse and further affecting the sealing effect. Once the seal fails, external air, moisture, dust, and microorganisms can easily enter the container, causing food spoilage and decay. This not only causes economic losses but may also threaten the health of consumers. Utility Model Content

[0004] To overcome the problem that the sealing effect of a single flange seal may decrease after long-term transportation when using a water tank mouth locking device, a new type of fiberglass food water tank mouth locking device is proposed.

[0005] The technical solution of this utility model is as follows: a fiberglass food water tank mouth locking device, including a tank body and a fixing structure. The fixing structure includes a fixing cylinder and a sealing ring 1. The fixing cylinder is fixedly connected to the opening of the tank body. An outer sealing structure and an inner sealing structure are installed inside the fixing cylinder. The outer sealing structure includes a sealing cover 1 and a sealing seat. The inner sealing structure includes a sealing ring 2 and a sealing cover 2. The inner wall of the fixing cylinder is fixedly connected to the sealing ring 2 and the sealing ring 1, which are distributed on the left and right sides. The sealing cover 2 is hinged to the left end of the sealing ring 2. The sealing seat is fixedly connected to the center of the left end of the sealing cover 1. The outer wall of the sealing seat is attached to the inner wall of the fixing cylinder. The left end of the sealing seat has a groove 1 that surrounds the tank. A sealing ring 1 is installed in the groove 1. The right end of the sealing ring 1 has a groove 2. The left end of the sealing seat is attached to the right end of the sealing ring 1. The outer wall of the sealing ring 1 is attached to the inner wall of the groove 2. The outer wall of the fixing cylinder has slots that are distributed vertically. An air inlet valve and an air outlet valve are installed in the upper and lower slots, respectively.

[0006] Furthermore, six fixing holes are equidistantly distributed around the right edge of the fixing cylinder, and positioning sleeves are fixedly connected to the right openings of the fixing holes.

[0007] Furthermore, the right end of the sealing cover has a series of equally spaced fixing holes, which correspond one-to-one with the fixing holes.

[0008] Furthermore, the outer wall of the positioning sleeve fits into the inner wall of the fixing hole one, and the sealing cover one is fixed to the right end of the fixing cylinder by bolts.

[0009] Furthermore, the outer wall of the fixed cylinder is fixed with six reinforcing ribs that are equidistantly arranged around the perimeter, and the left end of the reinforcing ribs is fixed to the outer wall of the tank.

[0010] Furthermore, a fixing block is fixedly connected to the right edge of the sealing cover 2, and a groove is opened at the upper end of the fixing block, with a spring pin installed on the inner wall of the groove.

[0011] Furthermore, the left end of the spring pin is attached to the right end of the second sealing ring, and the right edge of the second sealing cover is fixed with the second sealing ring, the right end of the second sealing ring being attached to the left end of the second sealing ring.

[0012] The beneficial effects of this utility model are as follows: By flipping and closing the sealing cover two hinged to the left end of the sealing ring two, a certain sealing effect can be provided to the tank. The sealing seat can fit against the inner wall of the fixed cylinder and the right end of the sealing ring one, providing a certain sealing effect to the tank. Then, the sealing ring one in the groove one can cooperate with the groove two to improve the sealing effect of the sealing cover one to the fixed cylinder. Finally, the vacuum pump connected to the air outlet valve can evacuate the space between the sealing ring one and the sealing ring two, and atmospheric pressure can assist in fixing the sealing cover one and the sealing cover two. Compared with the existing water tank mouth locking device, the added inner sealing structure and outer sealing structure can provide a double sealing effect to the tank. The vacuum pump can evacuate the space between the sealing cover one and the sealing cover two, and atmospheric pressure can push the sealing cover one and the sealing cover two to fit and press the sealing ring one and the sealing ring two, thereby improving the sealing effect of the tank. Attached Figure Description

[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0014] Figure 2 The diagram shown is a three-dimensional structural disassembly diagram of this utility model;

[0015] Figure 3 The diagram shown is a three-dimensional disassembled view of the external sealing structure of this utility model.

[0016] Figure 4 The diagram shown is a three-dimensional disassembled view of the fixed structure of this utility model.

[0017] Figure 5 The diagram shown is a three-dimensional disassembled view of the internal sealing structure of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Tank body; 2. External sealing structure; 201. Sealing cover one; 202. Fixing hole one; 203. Groove one; 204. Sealing ring one; 205. Sealing seat; 3. Fixing structure; 301. Fixing cylinder; 302. Fixing hole two; 303. Positioning sleeve; 304. Sealing ring one; 305. Groove two; 306. Groove hole; 307. Inlet valve; 308. Outlet valve; 309. Reinforcing rib; 4. Internal sealing structure; 401. Sealing ring two; 402. Sealing cover two; 403. Fixing block; 404. Slide groove; 405. Spring pin; 406. Sealing ring two. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please see Figures 1-5 This utility model provides an embodiment of a fiberglass food water tank mouth locking device, including a tank body 1 and a fixing structure 3. The fixing structure 3 includes a fixing cylinder 301 and a sealing ring 304. The fixing cylinder 301 is fixedly connected to the opening of the tank body 1. An outer sealing structure 2 and an inner sealing structure 4 are installed inside the fixing cylinder 301. The outer sealing structure 2 includes a sealing cover 201 and a sealing seat 205. The inner sealing structure 4 includes a sealing ring 401 and a sealing cover 402. The inner wall of the fixing cylinder 301 is fixedly connected to the sealing rings 401 and 304, which are distributed on the left and right sides. The left end of the sealing ring 401 is hinged to the sealing cover 302. 402. A sealing seat 205 is fixedly connected to the center of the left end of the sealing cover 201. The outer wall of the sealing seat 205 is in contact with the inner wall of the fixing cylinder 301. A groove 203 is opened around the left end of the sealing seat 205. A sealing ring 204 is provided in the groove 203. A groove 305 is opened at the right end of the sealing ring 304. The left end of the sealing seat 205 is in contact with the right end of the sealing ring 304. The outer wall of the sealing ring 204 is in contact with the inner wall of the groove 305. The outer wall of the fixing cylinder 301 is provided with vertically distributed slots 306. An air inlet valve 307 and an air outlet valve 308 are respectively installed in the upper and lower slots 306.

[0021] By flipping and closing the sealing cap 402, which is hinged to the left end of the sealing ring 401, a certain sealing effect can be provided to the tank body 1. The sealing seat 205 can fit against the inner wall of the fixing cylinder 301 and the right end of the sealing ring 304, providing a certain sealing effect to the tank body 1. Then, the sealing ring 204 in the groove 203 can cooperate with the groove 305 to improve the sealing effect of the sealing cap 201 on the fixing cylinder 301. Finally, the vacuum pump connected to the vent valve 308 can evacuate the space between the sealing ring 304 and the sealing ring 401. Atmospheric pressure can be used to assist in fixing the sealing cap 201 and the sealing cap 402, which can improve the sealing performance of the tank body 1 during transportation and prevent the goods from deteriorating and being damaged.

[0022] Please see Figures 3-4 In this embodiment, six fixing holes 302 are equidistantly distributed around the right edge of the fixing cylinder 301. Each fixing hole 302 has a positioning sleeve 303 fixedly attached to its right opening. During use, the positioning sleeve 303 can be used to determine the position of the fixing holes 302, improving the ease of installation. The right end of the sealing cover 201 has six fixing holes 202 equidistantly distributed around the right edge. The fixing holes 202 correspond one-to-one with the fixing holes 302. During use, the sealing cover 201 can be easily installed on the right end of the fixing cylinder 301 by matching the fixing holes 202 with the fixing holes 302.

[0023] Please see Figures 4-5 In this embodiment, the outer wall of the positioning sleeve 303 fits against the inner wall of the fixing hole 202, and the sealing cover 201 is fixed to the right end of the fixing cylinder 301 by bolts. In use, the positioning sleeve 303, in conjunction with the fixing hole 202, can assist in fixing the sealing cover 201, making it convenient to fix the installation position of the sealing cover 201. The sealing cover 201 installed by bolts can ensure stability during transportation. The outer wall of the fixing cylinder 301 is fixed with six reinforcing ribs 309 that are equidistantly arranged around the perimeter. The left end of the reinforcing ribs 309 is fixed to the outer wall of the tank body 1. In use, the reinforcing ribs 309 can improve the strength of the fixing cylinder 301, ensure the stability of the fixing cylinder 301 after long-term operation, and extend its service life.

[0024] Please see Figure 5In this embodiment, a fixing block 403 is fixedly connected to the right edge of the sealing cover 402. A groove 404 is provided at the upper end of the fixing block 403. A spring pin 405 is installed on the inner wall of the groove 404. In use, the fixing block 403 can provide space for the groove 404 to pass through. The spring pin 405 installed in the groove 404 can help fix the sealing cover 402. The left end of the spring pin 405 is attached to the right end of the sealing ring 401. A sealing ring 406 is fixedly connected to the right edge of the sealing cover 402. The right end of the sealing ring 406 is attached to the left end of the sealing ring 401. In use, the sealing ring 406 can improve the sealing performance between the sealing cover 402 and the sealing ring 401, ensuring the sealing protection effect.

[0025] During operation, first, flip and close the sealing cover 402 to release the spring pin 405 and fix the sealing cover 402. Then, place the sealing cover 201 on the right side of the fixed cylinder 301, so that the positioning sleeve 303 cooperates with the fixing hole 202 to assist in fixing the sealing cover 201. Next, pass the bolts through the fixing hole 202 and then through the fixing hole 302, and tighten the nuts to fix the sealing cover 201 to the right end of the fixed cylinder 301. Then, connect the vacuum pump's suction pipe to the exhaust valve 308 to evacuate the space between the sealing cover 201 and the sealing cover 402, thus sealing the fixed cylinder 301. Finally, when it is necessary to open the sealing cover, press the air inlet valve 307 to allow air to enter between the sealing cover 202 and the sealing cover 201. Then, unscrew the bolts to open the sealing cover 201, and press the spring pin 405 to open the sealing cover 402.

[0026] Through the above steps, flipping and closing the sealing cover 402, which is hinged to the left end of the sealing ring 401, can provide a certain sealing effect for the tank 1. The sealing seat 205 can fit against the inner wall of the fixing cylinder 301 and the right end of the sealing ring 304, providing a certain sealing effect for the tank 1. Then, the sealing ring 204 in the groove 203 can cooperate with the groove 305 to improve the sealing effect of the sealing cover 201 on the fixing cylinder 301. Finally, the vacuum pump connected to the vent valve 308 can evacuate the space between the sealing ring 304 and the sealing ring 401, and atmospheric pressure can assist in fixing the sealing cover 201 and the sealing cover 402. This solves the problem that the single flange seal of the water tank opening locking device may reduce the sealing effect after long-term transportation.

Claims

1. A fiberglass food water tank mouth locking device, comprising a tank body (1) and a fixing structure (3), characterized in that: The fixed structure (3) includes a fixed cylinder (301) and a sealing ring (304). The fixed cylinder (301) is fixed inside the opening of the tank body (1). An outer sealing structure (2) and an inner sealing structure (4) are installed inside the fixed cylinder (301). The outer sealing structure (2) includes a sealing cover (201) and a sealing seat (205). The inner sealing structure (4) includes a sealing ring (401) and a sealing cover (402). The inner wall of the fixed cylinder (301) is fixed with sealing rings (401) and (304) distributed on the left and right sides. The left end of sealing ring (401) is hinged to sealing cover (402). The center of the left end of sealing cover (201) is fixed to... There is a sealing seat (205), the outer wall of the sealing seat (205) is attached to the inner wall of the fixing cylinder (301), the left end of the sealing seat (205) is provided with a groove 1 (203) that surrounds the whole, the groove 1 (203) is provided with a sealing ring 1 (204), the right end of the sealing ring 1 (304) is provided with a groove 2 (305), the left end of the sealing seat (205) is attached to the right end of the sealing ring 1 (304), the outer wall of the sealing ring 1 (204) is attached to the inner wall of the groove 2 (305), the outer wall of the fixing cylinder (301) is provided with slots (306) distributed vertically, and an air inlet valve (307) and an air outlet valve (308) are respectively installed in the upper and lower slots (306).

2. The fiberglass food water tank mouth locking device according to claim 1, characterized in that: The right edge of the fixed cylinder (301) has six fixed holes (302) that are evenly distributed around the perimeter. The right opening of each fixed hole (302) is fixed with a positioning sleeve (303).

3. The fiberglass food water tank mouth locking device according to claim 2, characterized in that: The right end of the sealing cover (201) is provided with a series of equally spaced fixing holes (202) that correspond one-to-one with fixing holes (302).

4. The fiberglass food water tank mouth locking device according to claim 3, characterized in that: The outer wall of the positioning sleeve (303) fits against the inner wall of the fixing hole (202), and the sealing cover (201) is fixed to the right end of the fixing cylinder (301) by bolts.

5. The fiberglass food water tank mouth locking device according to claim 4, characterized in that: The outer wall of the fixed cylinder (301) is fixed with six reinforcing ribs (309) that are equidistantly arranged around the perimeter. The left end of the reinforcing ribs (309) is fixed to the outer wall of the tank body (1).

6. The fiberglass food water tank mouth locking device according to claim 5, characterized in that: A fixing block (403) is fixedly connected to the right edge of the sealing cover (402). A groove (404) is provided at the upper end of the fixing block (403), and a spring pin (405) is installed on the inner wall of the groove (404).

7. The fiberglass food water tank mouth locking device according to claim 6, characterized in that: The left end of the spring pin (405) is attached to the right end of the sealing ring two (401), and the sealing ring two (406) is fixed at the right edge of the sealing cover two (402), with the right end of the sealing ring two (406) attached to the left end of the sealing ring two (401).

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