Glass fiber reinforced plastic sealing box

Abstract

The utility model belongs to the technical field of glass fiber reinforced plastics, and particularly relates to a glass fiber reinforced plastic sealing box, which comprises a box body, a box cover arranged at the upper end of the box body, and a sealing gasket arranged between the box body and the box cover, and is characterized in that an air outlet groove is arranged at the upper end of the box cover, and a pressure relief device is arranged in the air outlet groove; the pressure relief device is used for automatically relieving pressure of the box body, the air inlet hole is formed in one side of the box body, an air inlet cylinder is arranged on the outer side of the air inlet hole and communicated with the air inlet hole, a sealing assembly is arranged at the position, located at the air inlet hole, of the inner side of the box body, and the sealing assembly is used for blocking and sealing the air inlet hole. When a worker fills nitrogen into the glass fiber reinforced plastic sealing box and the air pressure in the box body reaches a critical value, automatic pressure relief can be achieved, and the worker can be reminded that the air pressure in the box body reaches the critical value.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass fiber reinforced plastics, and in particular relates to a glass fiber reinforced plastic sealed box. Background Art

[0002] FRP, or glass fiber reinforced plastic, is a composite material that combines glass fiber with plastic, resulting in lightweight, high strength, and corrosion resistance. Due to its superior performance, FRP is widely used in various fields, such as aviation, automotive, and construction. Specifically, FRP sealed boxes are primarily used to protect, store, and transport various items, and are particularly resistant to water, dust, and corrosion.

[0003] Fiberglass sealed boxes are usually designed as airtight structures and can be filled with nitrogen to effectively protect the equipment inside. They can effectively prevent moisture, dust and other foreign substances from entering the box, ensuring the safety and dryness of the items inside. However, when filling nitrogen, it is difficult for workers to detect whether the air pressure in the box is too high. When the air pressure in the box is too high, the silicone gasket between the box and the box cover will be deformed due to excessive pressure, resulting in reduced sealing of the sealed box. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned technical problems and provide a glass fiber reinforced plastic sealed box, which can automatically release the pressure when the air pressure in the box reaches a critical value when the staff fills the glass fiber reinforced plastic sealed box with nitrogen, and can remind the staff that the air pressure in the box has reached the critical value.

[0005] In view of this, the utility model provides a fiberglass sealed box, comprising: a box body, a box cover is provided at the upper end of the box body, a sealing gasket is provided between the box body and the box cover, and is characterized in that an air outlet groove is provided at the upper end of the box cover, a pressure relief device is provided in the air outlet groove, and the pressure relief device is used to automatically relieve pressure on the box body, and also includes: an air inlet hole, the air inlet hole is provided on one side of the box body, an air inlet cylinder is provided on the outside of the air inlet hole, the air inlet cylinder is communicated with the air inlet hole, and a sealing component is provided on the inside of the box body at the position of the air inlet hole, and the sealing component is used to block and seal the air inlet hole.

[0006] In the present technical solution, nitrogen is filled into the interior of the box through the air inlet cylinder outside the air inlet hole. When the air pressure in the box reaches a critical value, the pressure relief device will automatically start to discharge excess gas from the air outlet groove, thereby reducing the air pressure in the box. This can effectively prevent the deformation of the sealing gasket and the reduction of sealing performance caused by excessive air pressure. The staff can know whether the air pressure in the box has reached the critical value by observing the pressure relief device of the air outlet groove, and then stop filling nitrogen, and then block and seal the air inlet through the sealing component.

[0007] In the above technical solution, further, the pressure relief device includes: a pressure relief pipe, which is arranged in the air outlet groove and connected to the interior of the box body, a first guide rod is provided at the top of the pressure relief pipe, and a closing plate is slidably connected to the outer wall of the first guide rod, and a sealing gasket is provided on the closing plate near one end of the pressure relief pipe.

[0008] In the above technical solution, further, a stopper is provided at the top end of the guide rod, the stopper is provided at the top end of the first guide rod, the stopper is used to abut against the closing plate, and the diameter of the stopper is larger than the diameter of the first guide rod.

[0009] In this technical solution, when the internal pressure rises to a critical value and pressure relief is required, the internal pressure will push the closing plate to move upward along the first guide rod, thereby opening the pressure relief channel, and the closing plate moves up to contact the block. Since the diameter of the block is larger than the diameter of the first guide rod, the closing plate is limited and cannot continue to move upward. This can prevent the closing plate from detaching from the guide rod. After the pressure relief is completed or the pressure drops to a safe range, the closing plate will re-close the pressure relief pipe. The staff will know that the internal pressure has reached the critical value by observing the upward movement of the sealing plate and will stop filling the sealed box with nitrogen.

[0010] In the above technical solution, further, a cover door is provided above the air outlet groove, and the cover door is hingedly connected to the upper end of the box cover.

[0011] In this technical solution, after the interior is filled with nitrogen, the gas outlet groove is closed by the cover door, so that the inner side of the cover door has downward pressure facing the sealing plate, thereby improving the sealing performance of the pressure relief device.

[0012] In the above technical solution, further, the sealing assembly includes: a U-shaped frame, two second guide rods are symmetrically arranged on the inner side of the U-shaped frame, and a sealing component is slidably provided on the two second guide rods, and the sealing component is provided with a sealing plug corresponding to the air inlet hole.

[0013] In the above technical solution, further, the sealing component includes: a threaded rod, the outer wall of the threaded rod is threadedly connected to a convex plate, the sealing plug is arranged at the top of the inner side surface of the convex plate, and the sealing plug is provided with a sealing ring at one end of the convex plate, wherein one end of the threaded rod passes through the box body and is connected to a knob.

[0014] In this technical solution, the staff turns the knob to make the threaded rod drive the convex plate and the sealing plug connected to its top to move in a straight line. As the sealing plug moves toward the air inlet, it gradually docks with the air inlet and seals it. In addition, a sealing ring is provided at the end of the sealing plug close to the convex plate to further improve the sealing of the air inlet.

[0015] In the above technical solution, further, the outer wall of the air intake cylinder is provided with a connecting plug, and the connecting plug is used to seal the air intake cylinder.

[0016] In this technical solution, after nitrogen inflation is completed and the sealing assembly seals the air inlet, the connection between the air inlet cylinder and the outside is closed by the connecting plug, thereby further improving the sealing performance of the sealing box.

[0017] The beneficial effects of the utility model are:

[0018] 1. When the internal pressure rises to a critical value and pressure relief is required, the internal pressure will push the closing plate to move upward along the first guide rod, thereby opening the pressure relief channel. The closing plate moves up to contact the block. Since the diameter of the block is larger than the diameter of the first guide rod, the closing plate is limited and cannot move further upward. This prevents the closing plate from detaching from the first guide rod. After the pressure relief is completed or the pressure drops to a safe range, the closing plate re-closes the pressure relief pipe. The staff knows that the internal pressure has reached the critical value by observing the upward movement of the sealing plate and stops filling the sealed box with nitrogen.

[0019] 2. The staff turns the knob to make the threaded rod drive the convex plate and the sealing plug connected to its top to move linearly. As the sealing plug moves toward the air inlet, it gradually docks with the air inlet and seals it. A sealing ring is provided at the end of the sealing plug near the convex plate to further improve the sealing of the air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a glass fiber reinforced plastic sealed box of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure inside a glass fiber reinforced plastic sealed box of the utility model;

[0022] Figure 3 This is a structural diagram of a glass fiber reinforced plastic sealed box pressure relief device of the utility model;

[0023] The marks in the figure are:

[0024] 1. Box body; 2. Box cover; 3. Air outlet groove; 4. Pressure relief device; 401. Pressure relief pipe; 402. First guide rod; 403. Closing plate; 404. Sealing gasket; 405. Block; 5. Cover door; 6. Air inlet cylinder; 7. Connecting plug; 8. Sealing assembly; 801. U-shaped frame; 802. Second guide rod; 803. Threaded rod; 804. Convex plate; 805. Sealing plug; 806. Sealing ring; 807. Knob; 9. Sealing gasket; 10. Air inlet hole. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0027] It should be noted that the terms "first," "second," etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] It should be noted that, in the description of this application, the directions or positional relationships indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional terms do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional terms "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0029] It should be noted that, in the present application, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0030] Example 1:

[0031] Depend on Figure 1-3 As shown, this embodiment provides a fiberglass sealed box including: a box body 1, a box cover 2 is provided at the upper end of the box body 1, a sealing gasket 9 is provided between the box body 1 and the box cover 2, an air outlet groove 3 is provided at the upper end of the box cover 2, a pressure relief device 4 is provided in the air outlet groove 3, and the pressure relief device 4 is used to automatically relieve pressure on the box body 1, and also includes: an air inlet 10, the air inlet 10 is provided on one side of the box body 1, an air inlet cylinder 6 is provided on the outside of the air inlet 10, and the air inlet cylinder 6 is communicated with the air inlet 10, and a sealing component 8 is provided on the inside of the box body 1 at the position of the air inlet 10, and the sealing component 8 is used to block and seal the air inlet 10. Nitrogen is filled into the box body 1 through the air inlet cylinder 6 outside the air inlet hole 10. When the air pressure in the box body 1 reaches a critical value, the pressure relief device 4 will automatically start to discharge the excess gas from the air outlet groove 3, thereby reducing the air pressure in the box body 1. This can effectively prevent the deformation of the sealing gasket 404 and the reduction of sealing performance due to excessive air pressure. The staff can know whether the air pressure in the box body 1 has reached the critical value by observing the pressure relief device 4 of the air outlet groove 3, thereby stopping the filling of nitrogen, and then blocking and sealing the air inlet hole 10 through the sealing component 8.

[0032] Furthermore, the pressure relief device 4 includes: a pressure relief pipe 401, which is arranged in the air outlet groove 3 and is connected to the interior of the box body 1. A first guide rod 402 is provided at the top of the pressure relief pipe 401, and a closing plate 403 is slidably connected to the outer wall of the first guide rod 402. The closing plate 403 is provided with a sealing gasket 404 near one end of the pressure relief pipe 401.

[0033] Furthermore, a stopper 405 is provided at the top of the guide rod. The stopper 405 is provided at the top of the first guide rod 402. The stopper 405 is used to abut against the sealing plate 403, and the diameter of the stopper 405 is larger than the diameter of the first guide rod 402. When the internal pressure rises to a critical value and pressure relief is required, the internal pressure will push the sealing plate 403 to move upward along the first guide rod 402, thereby opening the pressure relief channel. The sealing plate 403 moves upward until it contacts the stopper 405. Since the diameter of the stopper 405 is larger than the diameter of the first guide rod 402, the sealing plate 403 is limited and cannot move further upward, thereby preventing the sealing plate 403 from detaching from the guide rod. After the pressure relief is completed or the pressure drops to a safe range, the sealing plate 403 re-seals the pressure relief pipe 401. The staff knows that the internal pressure has reached the critical value by observing the upward movement of the sealing plate and thus stops filling the sealed box with nitrogen.

[0034] Furthermore, a cover door 5 is provided above the gas outlet groove 3, and the cover door 5 is hingedly connected to the upper end of the box cover 2. After the interior is filled with nitrogen, the gas outlet groove 3 is closed by the cover door 5, so that the inner side of the cover door 5 has downward pressure against the sealing plate, thereby improving the sealing performance of the pressure relief device 4.

[0035] Furthermore, the sealing assembly 8 includes: a U-shaped frame 801U, two second guide rods 802 are symmetrically arranged on the inner side of the U-shaped frame 801U, and a sealing component is slidably provided on the two second guide rods 802, and the sealing component is provided with a sealing plug 805 corresponding to the air inlet hole 10.

[0036] Furthermore, the sealing component includes a threaded rod 803, the outer wall of which is threadedly connected to a convex plate 804, a sealing plug 805 disposed at the top inner side of the convex plate 804, and a sealing ring 806 disposed at the end of the sealing plug 805 that abuts the convex plate 804. One end of the threaded rod 803 extends through the housing 1 and is connected to a knob 807. A staff member rotates the knob 807 to cause the threaded rod 803 to drive the convex plate 804 and the sealing plug 805 connected to its top end to move linearly. As the sealing plug 805 moves toward the air inlet 10, it gradually engages with and seals the air inlet 10. Furthermore, a sealing ring 806 is disposed at the end of the sealing plug that abuts the convex plate 804, further improving the sealing performance of the air inlet 10.

[0037] Furthermore, a connecting plug 7 is provided on the outer wall of the air inlet cylinder 6, and the connecting plug 7 is used to seal the air inlet cylinder 6. After the nitrogen inflation is completed and the sealing assembly 8 seals the air inlet hole 10, the connection between the air inlet cylinder 6 and the outside world is closed by the connecting plug 7, thereby further improving the sealing performance of the sealing box.

[0038] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A glass fiber reinforced plastic sealed box, comprising: A box body (1), wherein a box cover (2) is provided at the upper end of the box body (1), and a sealing gasket (9) is provided between the box body (1) and the box cover (2), characterized in that an air outlet groove (3) is provided at the upper end of the box cover (2), and a pressure relief device (4) is provided in the air outlet groove (3), and the pressure relief device (4) is used to automatically relieve pressure on the box body (1), and also includes: an air inlet (10), wherein the air inlet (10) is provided on one side of the box body (1), an air inlet cylinder (6) is provided outside the air inlet (10), and the air inlet cylinder (6) is communicated with the air inlet (10), and a sealing component (8) is provided on the inner side of the box body (1) at the position of the air inlet (10), and the sealing component (8) is used to block and seal the air inlet (10).

2. A glass fiber reinforced plastic sealed box according to claim 1, characterized in that: The pressure relief device (4) comprises: a pressure relief pipe (401), the pressure relief pipe (401) being arranged in the air outlet groove (3) and communicating with the interior of the box body (1), a first guide rod (402) being provided at the top end of the pressure relief pipe (401), a closing plate (403) being slidably connected to the outer wall of the first guide rod (402), and a sealing gasket (404) being provided at one end of the closing plate (403) close to the pressure relief pipe (401).

3. A glass fiber reinforced plastic sealed box according to claim 2, characterized in that: A stopper (405) is provided at the top end of the guide rod. The stopper (405) is provided at the top end of the first guide rod (402). The stopper (405) is used to abut against the closing plate (403), and the diameter of the stopper (405) is greater than the diameter of the first guide rod (402).

4. A glass fiber reinforced plastic sealed box according to claim 3, characterized in that: A cover door (5) is provided above the air outlet groove (3), and the cover door (5) is hingedly connected to the upper end of the box cover (2).

5. The glass fiber reinforced plastic sealed box according to claim 1, characterized in that: The sealing assembly (8) comprises a U-shaped frame (801U), two second guide rods (802) are symmetrically arranged on the inner side of the U-shaped frame (801U), and sealing components are slidably provided on the two second guide rods (802), and the sealing components are provided with sealing plugs (805) corresponding to the air inlet holes (10).

6. The glass fiber reinforced plastic sealed box according to claim 5, characterized in that: The sealing component comprises: a threaded rod (803), the outer wall of the threaded rod (803) being threadedly connected to a convex plate (804), the sealing plug (805) being arranged at the top end of the inner side of the convex plate (804), the sealing plug (805) being provided with a sealing ring (806) at one end close to the convex plate (804), wherein one end of the threaded rod (803) passes through the box body (1) and is connected to a knob (807).

7. The glass fiber reinforced plastic sealed box according to claim 1, characterized in that: The outer wall of the air intake cylinder (6) is further provided with a connecting plug (7), and the connecting plug (7) is used to seal the air intake cylinder (6).

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