Corner sealing structure

Abstract

The utility model provides a corner sealing structure, which is mounted at a corner notch formed by three mutually perpendicular mounting surfaces of a box body, and comprises an inner sealing element tightly attached to the inner wall of the box body, a middle sealing element and an outer sealing element for pressing the middle sealing element from the outside of the box body to realize sealing, and the middle sealing piece is sealed with the box body mounting end surface at the corner notch. According to the sealing structure, sealing can be achieved at the notches formed in the corners of the box body without sealant, the sealing structure is more environmentally friendly, and cost is saved; moreover, the curing time of the original sealant is saved, and the on-site installation time is shortened; furthermore, the sealing structure is fast to disassemble and assemble, convenient to use and wide in market application prospect.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a corner sealing structure. Background Art

[0002] As a health-care consumer product, micro-pressure oxygen chambers are increasingly entering people's lives. Existing oxygen chambers are mainly spliced ​​and installed. During use, the installation location may need to be changed, which requires repeated disassembly and assembly. In addition, due to the splicing method, the air tightness of the cabin is required to be high. For a square oxygen chamber, the three planes of the cabin intersect at the corner, and it is difficult to seal the corner. Most products on the market are currently sealed by applying sealant. Since the sealant will volatilize certain organic matter during the solidification process, it affects the air quality in the cabin. In addition, the sealant is not easy to clean, which will bring great inconvenience to the disassembly and reinstallation of the cabin. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a corner sealing structure. The sealing structure of the utility model utilizes the structure of an inner seal, an intermediate seal and an outer seal to achieve the sealing of the profile sections of the three installation surfaces of the box body and the three profile joint gaps. The cabin sealing can be achieved without using sealant, which is environmentally friendly.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a corner sealing structure, which is installed at a corner notch formed by three mutually perpendicular mounting surfaces of a box body. The corner sealing structure comprises an inner sealing member tightly fitted to the inner wall of the box body, an intermediate sealing member and an outer sealing member which presses the intermediate sealing member from outside the box body to achieve sealing, and the intermediate sealing member achieves sealing with the mounting end face of the box body at the corner notch.

[0006] Further: the inner seal comprises an inner seal fitting portion which is tightly fitted to the inner wall surface of the box body and an inner seal clamping portion which is clamped at the notch.

[0007] Further: the outer seal comprises an outer seal fitting portion fitted with three mounting end surfaces of the box body, and the outer seal is provided with a mounting hole at a position corresponding to the inner seal clamping portion.

[0008] Further: a boss is provided at the intersection of the fitting parts of the outer seal, and a mounting hole is provided at the center of the boss.

[0009] Further: the inner seal clamping portion is provided with a mounting hole, and the mounting member passes through the mounting hole of the outer seal, the middle seal and the mounting hole of the inner seal in sequence to fix the sealing structure at the corner notch.

[0010] Furthermore: the mounting member is a bolt, and the bolt passes through the screw holes on the inner seal, the middle seal and the outer seal in sequence to achieve a fixed sealing connection.

[0011] Furthermore: the sealing structure also includes a flat washer and a sealing rubber ring, the sealing rubber ring is tightly fitted with the outer seal mounting hole, and the bolts fix the flat washer and the sealing rubber ring at the outer seal mounting hole.

[0012] Furthermore: the sealing structure also includes a spring washer, and the flat washer is arranged between the spring washer and the sealing rubber ring.

[0013] Compared with the prior art, the advantages and technical effects of the utility model are as follows: the corner sealing structure provided by the utility model includes an inner seal, an intermediate seal and an outer seal placed inside the box body, and the inner seal utilizes its three-sided three-dimensional structure to achieve a tight fit with the three vertical inner wall surfaces inside the box body, and mounting holes are provided at the corresponding corner notches for achieving a sealed connection with the intermediate seal and the outer seal.

[0014] By utilizing the sealing structure of the utility model, the cabin can be sealed without using sealant at the notch formed at the corner of the box body, which is more environmentally friendly and saves costs; it also saves the curing time of the original sealant and shortens the on-site installation time; furthermore, when dismantling the sealing structure, the disassembly and assembly is quick and the use is convenient, which has broad market application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an exploded view of the corner sealing structure of the utility model;

[0016] Figure 2 This is a partial enlarged structural diagram of the corner notch of the box provided by the utility model;

[0017] Figure 3 This is a partially enlarged schematic diagram of a corner sealing structure installed at a corner notch provided by the utility model.

[0018] In the figure: 1-inner seal; 2-middle seal; 3-outer seal; 4-sealing rubber ring; 5-flat washer; 6-spring washer; 7-bolt; 8-sealing strip; 9-profile; 10-corner notch; 11-inner seal clamping part; 12-inner seal fitting part; 13-screw hole; 21-through hole; 31-boss; 32-through hole. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] Example 1

[0021] like Figure 1-3 As shown, three adjacent mounting surfaces of the box are perpendicular to each other, and three frame profiles on the three mounting surfaces form a corner notch 10 at the corner. The corner sealing structure provided by the utility model is installed at the corner notch 10 formed by the three perpendicular mounting surfaces of the box. The corner sealing structure includes an inner seal 1 that fits tightly against the inner wall of the box, an intermediate seal 2, and an outer seal 3 that presses the intermediate seal from outside the box to achieve sealing. The intermediate seal 2 is sealed with the mounting end face of the box at the corner notch.

[0022] The inner seal 2 has a three-dimensional structure that is closely fitted with the inner wall of the box, specifically, it includes an inner seal fitting portion 12 that is closely fitted with the three inner wall surfaces of the box, and the inner seal fitting portion 12 intersects with the inner seal clamping portion 11, and the inner seal clamping portion 11 is clamped in the corner notch 10. The inner seal clamping portion 11 is provided with a screw hole 13, and the bolt 7 passes through the mounting hole of the outer seal, the middle seal and the mounting hole of the inner seal in sequence to fix the sealing structure at the corner notch 10.

[0023] The outer seal 3 is provided with a three-sided three-dimensional structure that fits with the three vertical mounting end surfaces of the box body, specifically including an outer seal fitting portion that fits with the three mounting end surfaces of the box body, a boss 31 is provided at the intersection of the outer seal fitting portion, and a through hole 32 is provided at the center of the boss 31. The bolt 7 passes through the through hole 32 on the boss and the through hole 21 of the middle seal in turn and is fixedly connected to the screw hole 13 of the inner seal clamping portion 11. The bolt 7 can be a T-shaped inner corner bolt.

[0024] The inner seal clamping portion 11 protrudes out of the corner notch 10 and is tightly connected to the bottom of the outer seal 3 , and the middle seal 2 is placed between the outer seal 3 and the corner notch 10 .

[0025] The sealing structure further comprises a flat washer 5 and a sealing rubber ring 4 . The sealing rubber ring 4 is tightly fitted with the through hole 32 . The bolt 7 fixes the flat washer 5 and the sealing rubber ring 4 at the through hole 32 .

[0026] The sealing structure also includes a spring washer 6 , and the flat washer 5 is arranged between the spring washer 6 and the sealing rubber ring 4 .

[0027] The installation steps of the corner sealing structure provided by the utility model at the corner notch are as follows: three groups of profiles 9 on three vertical installation surfaces form a corner notch 10, and sealing strips 8 are provided on the profiles 9, and the middle seal 2 covers the cut surfaces of the three groups of profiles 9 and the cut surfaces of the three sealing strips 8. The inner seal clamping part 11 is clamped into the corner notch 10, and the middle seal 2 is pre-fitted to the bottom of the outer seal, and then the sealing rubber ring 4, flat washer 5, spring washer 6, and bolt 7 are combined and passed through the screw hole 13 and rotated and screwed in. As the bolt 7 is continuously tightened, the outer seal 3 squeezes the middle seal 2 until the middle seal 2 is tightly fitted with the cut surfaces of the three frame profiles 9 and the sealing strip 8 in the joint of the profile 9, thereby achieving sealing at the corner notch 10.

[0028] In summary, the above-mentioned implementation modes are not limitative implementation modes of the present invention, and any modification or equivalent deformation made by technicians in this field on the basis of the essential content of the present invention is within the technical scope of the present invention.

Claims

1. A corner sealing structure, characterized in that: The corner sealing structure is installed at a corner notch formed by three mutually perpendicular mounting surfaces of the box body. The corner sealing structure includes an inner seal that fits tightly against the inner wall of the box body, an intermediate seal, and an outer seal that presses the intermediate seal from outside the box body to achieve sealing. The intermediate seal achieves sealing with the mounting end face of the box body at the corner notch.

2. The corner sealing structure according to claim 1, characterized in that: The inner seal comprises an inner seal fitting portion which is tightly fitted to the inner wall surface of the box body and an inner seal clamping portion which is clamped at the notch.

3. The corner sealing structure according to claim 2, characterized in that: The outer seal comprises an outer seal fitting portion fitted with three mounting end surfaces of the box body, and the outer seal is provided with a mounting hole at a position corresponding to the inner seal clamping portion.

4. The corner sealing structure according to claim 3, characterized in that: A boss is provided at the intersection of the outer sealing member abutting parts, and a mounting hole is provided at the center of the boss.

5. The corner sealing structure according to claim 1, characterized in that: The inner seal clamping part is provided with a mounting hole, and the mounting part passes through the mounting hole of the outer seal, the middle seal and the mounting hole of the inner seal in sequence to fix the sealing structure at the corner notch.

6. The corner sealing structure according to claim 5, characterized in that: The mounting member is a bolt, which passes through the screw holes on the inner seal, the middle seal and the outer seal in sequence to achieve a fixed sealing connection.

7. The corner sealing structure according to claim 6, characterized in that: The sealing structure also includes a flat washer and a sealing rubber ring. The sealing rubber ring is tightly fitted with the outer sealing component mounting hole. The bolts fix the flat washer and the sealing rubber ring at the outer sealing component mounting hole.

8. The corner sealing structure according to claim 7, characterized in that: The sealing structure also includes a spring washer, and the flat washer is arranged between the spring washer and the sealing rubber ring.

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