Sealing body and sealing structure of sealed cabin

Abstract

The utility model provides a sealing body and a sealing structure of a sealed cabin. The sealing body provided by the utility model comprises an elastic body and a lining embedded in the elastic body, a passage penetrating through the bushing is arranged in the bushing, and a hose can be guided to penetrate through the passage and is in sealing fit with the passage. According to the sealing body disclosed by the utility model, the lining embedded in the elastic body is arranged, so that the lining protects the hose, and the hose is prevented from being excessively extruded by the elastic body to influence smooth circulation of a flow channel in the hose.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing structures, and in particular to a sealing body. The utility model also relates to a sealing structure of a sealed cabin provided with the sealing body. Background Art

[0002] Life support transfer equipment is an important device for emergency treatment and transfer of critically ill patients in extreme environments. The equipment has a sealed cabin, which can provide patients with a living environment with suitable temperature and air pressure in extreme environments such as high altitude, high temperature, and high humidity. It can also provide life support such as fluid infusion, respiratory ventilation, and ECG monitoring for critically ill patients. When infusing patients in the sealed cabin, the infusion hose needs to pass through the cabin wall to connect to the patient. The location where the hose passes through the cabin wall needs to ensure sealing, otherwise the life support transfer equipment will not be able to operate normally, threatening the patient's life safety. Therefore, the sealing between the hose and the cabin wall is particularly important for the patient's life support.

[0003] Existing sealing structures usually rely on elastic structures, and the gap between the bulkhead and the hose is sealed by inserting the hose into the elastic structure. However, since the elastic structure is easily deformed due to force, when a certain air pressure difference is formed inside and outside the cabin, and the pressure inside the cabin is relatively large, the elastic structure is radially contracted by the air pressure inside the cabin and the pore pressure of the bulkhead, and the pressure is transmitted to the hose, which easily causes the seal to over-compress the outer wall of the hose, reducing the flow area of ​​the hose, and affecting the smooth flow of the flow channel in the hose. Utility Model Content

[0004] In view of this, the utility model aims to provide a sealing body, which can effectively prevent the hose passing through the sealing body from being excessively squeezed, thereby affecting the smooth flow of the flow channel in the hose.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A sealing body comprises an elastomer and a bushing embedded in the elastomer; a passage penetrating the bushing is arranged in the bushing, and a hose can be guided to penetrate the passage and seal with the passage.

[0007] Furthermore, the elastic body has a radial compression of 5 to 20%.

[0008] Furthermore, at least a portion of the outer circumferential surface of the elastomer is provided with a guide surface for guiding the elastomer to be inserted into a mounting base.

[0009] Furthermore, the elastic body is constructed in a truncated cone shape.

[0010] Furthermore, the bushing includes a sleeve and a connecting cap which are detachably connected along the extension direction of the passage, and the sleeve can be fixedly embedded in the elastomer.

[0011] Furthermore, the connecting cap is screwed onto the sleeve.

[0012] Furthermore, the connecting caps are configured to be detachably connected to two opposite ends of the sleeve.

[0013] Furthermore, a sealing ring which can be sleeved on the hose is provided between the sleeve and the connecting cap; when the connecting cap is operated to approach and connect to the sleeve, the sealing ring is squeezed between the connecting cap and the sleeve, and forms a radial seal between the hose and the passage.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] The sealing body of the utility model is provided with a bushing embedded in the elastic body, so that the bushing protects the hose and prevents the hose from being excessively squeezed by the elastic body, thereby affecting the smooth flow of the flow channel in the hose.

[0016] In addition, the elastomer has a radial compression amount of 5 to 20%, so that the elastomer has a certain elasticity, so that the bushing can be easily embedded in the elastomer. At least part of the outer peripheral surface of the elastomer is provided with a guide surface for guiding the elastomer to be inserted into a mounting base, so as to facilitate the insertion of the elastomer into the mounting base. In particular, when the elastomer is constructed in a truncated cone shape, its structure is simple, easy to process and shape, and the guiding effect is better. The bushing is provided as a detachably connected sleeve and a connecting cap, which can facilitate the installation of the entire bushing on the sealing body.

[0017] In addition, in one embodiment, when the sealing form between the hose and the passage is set as a sealing ring between the sleeve and the connecting cap, during the connection operation of the connecting cap close to the sleeve, the sealing ring is squeezed by the connecting cap along the thickness direction, so that the sealing ring is squeezed and sealed between the sleeve and the connecting cap. At the same time, the sealing ring will produce radial deformation, and then it can be tightened on the hose to achieve radial sealing between the hose and the passage. It can realize the adjustment of the radial pressure of the hose by the sealing ring, and further improve the sealing effect between the bushing and the hose.

[0018] In addition, the utility model also proposes a sealing structure of a sealed cabin provided with the sealing body, which is used to ensure the sealing performance of the sealed cabin.

[0019] The sealing structure of the sealed cabin of the utility model comprises a sealing seat which is fixedly connected to the cabin wall and serves as a mounting base, and the sealing body as described above which is inserted in the sealing seat.

[0020] Furthermore, the sealing seat includes a base arranged on the inner side of the bulkhead, and a cover arranged on the outer side of the bulkhead, and the cover is provided with a through hole for the hose to pass through; the base includes an end plate abutting the bulkhead, and a cylinder extending from the end plate to the outside of the bulkhead for the sealing body to be inserted; the cover is detachably connected to the free end of the cylinder.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] The sealing structure of the sealed cabin described in the utility model, by providing a sealing seat and the sealing body as described above inserted in the sealing seat, can enable the hose to infuse the patient in the cabin through the sealing body and ensure the sealing of the sealed cabin, thereby helping to improve the life support and treatment effects for the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic structural diagram of the sealing body described in Embodiment 1 of the present utility model;

[0025] Figure 2 This is a schematic structural diagram of the sealing structure of the sealed cabin according to the second embodiment of the present utility model;

[0026] Description of reference numerals:

[0027] 1. Elastomer; 2. Hose; 3. Sleeve; 4. Connecting cap; 5. Sealing ring; 6. Bulkhead; 7. Sealing seat; 8. Sealing pad;

[0028] 31. middle section; 32. connecting section;

[0029] 71. Cover; 72. End plate; 73. Cylinder body. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0031] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0034] Embodiment 1

[0035] The present embodiment relates to a sealing body, the overall structure of which is as follows: Figure 1 As shown, the sealing body of this embodiment includes an elastic body 1 and a bushing embedded in the elastic body 1. A passage penetrating the bushing is provided in the bushing, and a hose 2 can be guided to penetrate the passage and seal with the passage.

[0036] As described above, the sealing body is provided with a bushing embedded in the elastomer 1 so that the bushing protects the hose 2 and prevents the hose 2 from being excessively squeezed by the elastomer 1 and affecting the smooth flow of the flow channel in the hose 2 .

[0037] Based on the introduction of the overall design concept above, specifically, the hose 2 in this embodiment is inserted into the passage of the bushing, and cooperates with the bushing to ensure the sealing between the bushing and the hose 2, and the bushing has a certain rigidity, which can prevent the hose 2 in the bushing from being excessively squeezed by the elastomer 1, which causes the pore size of the hose 2 to shrink, affecting the delivery of the liquid medicine. At the same time, the elastomer 1 has a certain elasticity, which can facilitate the bushing to be embedded therein, and also facilitate the insertion of the elastomer 1 into the installation base, and can be sealed between the bushing and the installation base, thereby improving the sealing of the sealing body of this embodiment. In specific implementation, the installation base of this embodiment can be a channel structure, which is arranged on a wall and passes through the wall.

[0038] In order to facilitate the insertion of the elastomer 1 into the installation base and ensure the stability of the bushing embedded in the elastomer 1, as a preferred implementation form, the elastomer 1 of this embodiment has a radial compression of 5 to 20%, so that the elastomer 1 has a certain deformation in the radial direction to facilitate embedding into the bushing and inserting the elastomer 1 into the installation base. At the same time, when the elastomer 1 is inserted into the installation base, due to its elasticity, it can exert a certain pressure on the bushing and the inner wall of the installation base, thereby reducing the gap between the elastomer 1 and the inner wall of the installation base and the outer peripheral surface of the bushing, thereby improving the sealing of the sealing body to a certain extent. In specific implementation, the radial compression of the elastomer 1 can be preferably set to 5%, 10%, 15% or 20%.

[0039] It can be understood that when the elastomer 1 is inserted into the installation base, it can apply pressure to the inner wall of the installation base and the outer periphery of the bushing to ensure sealing. Therefore, when the elastomer 1 is inserted into the installation base, after the elastomer 1 is embedded in the bushing, its outer diameter is usually equal to or greater than the aperture of the installation base. Therefore, in order to facilitate the installation of the present sealing body, as a preferred implementation form, at least part of the outer periphery of the elastomer 1 of this embodiment is provided with a guide surface for guiding the elastomer 1 to be inserted into a installation base. The guide surface can guide one end of the elastomer 1 to extend into the installation base, so as to facilitate the installation of the elastomer 1, i.e., the present sealing body.

[0040] Specifically, as a preferred embodiment, the elastic body 1 is constructed in a truncated cone shape, so that the outer peripheral surface of the elastic body 1 is entirely used as a guide surface, so that the elastic body 1 is easy to process and shape and is also convenient for the installation of the elastic body 1. And the elastic body 1 can be preferably arranged so that at least part of it is inserted into the installation base.

[0041] In this embodiment, as a preferred implementation form, continue as follows Figure 1 As shown, the bushing of this embodiment includes a sleeve 3 and a connecting cap 4 which are detachably arranged along the extending direction of the passage, and the sleeve 3 can be fixedly embedded in the elastic body 1. Specifically, a sealing ring 5 which can be sleeved on the hose 2 is arranged between the sleeve 3 and the connecting cap 4; when the connecting cap 4 is operated to approach and connect to the sleeve 3, the sealing ring 5 is squeezed between the connecting cap 4 and the sleeve 3, and forms a radial seal between the hose 2 and the passage.

[0042] It can be understood that the sealing cooperation between the hose 2 and the passage in the bushing is achieved by the radial sealing between the hose 2 and the passage by the sealing ring 5, and the radial sealing is due to the sealing ring 5 being squeezed by the connecting cap 4 and the end plate 72 of the sleeve 3, so that the sealing ring 5 is deformed and compressed in the thickness direction, thereby causing the inner diameter of the sealing ring 5 to decrease, tightening the hose 2 to achieve radial sealing.

[0043] Compared with the prior art in which the hose 2 is directly inserted into the elastic structure, the contact area between the hose 2 and the elastic structure is larger, and the hose 2 is easily crushed by the elastic structure. In the sealing body of this embodiment, the setting of the sealing ring 5 reduces the contact area with the hose 2, thereby ensuring the sealing performance and preventing the hose 2 from being excessively squeezed by the elastomer 1.

[0044] Specifically, when the depth of the connection cap 4 connected to the sleeve 3 is greater, the squeezing force on the sealing ring 5 is greater, so that the sealing pressure of the sealing ring 5 on the hose 2 is greater. Therefore, according to the actual working conditions, the sealing pressure of the sealing ring 5 on the hose 2 can be controlled by adjusting the connection depth of the connection cap 4 to ensure the sealing between the hose 2 and the bushing.

[0045] In specific implementation, the sealing ring 5 of this embodiment should have a certain thickness so as to be able to be deformed by extrusion so as to reduce its inner hole diameter.

[0046] Among them, as a preferred implementation form, the connection cap 4 is screwed on the sleeve 3, and the connection cap 4 can be preferably set to be detachably connected to the two opposite ends of the sleeve 3 to further improve the sealing performance. In the specific implementation, the sleeve 3 of this embodiment can be preferably set to include an intermediate section 31, and connecting sections 32 provided at both ends of the intermediate section 31, the outer diameter of the connecting section 32 is smaller than the outer diameter of the intermediate section 31, and the outer periphery of the connecting section 32 is provided with a threaded section for screwing the connection cap 4. And it can be preferably set that the outer diameter of the connection cap 4 is equal to the outer diameter of the intermediate section 31 and is greater than or equal to the hole diameter of the elastomer 1 on which the bushing is embedded, so as to ensure that the bushing can be fully in contact with the elastomer 1 when it is embedded in the elastomer 1, and at the same time, the stability of the bushing fixation is improved to prevent the bushing from detaching while ensuring the sealing performance.

[0047] In addition, during the assembly process of the sealing body of this embodiment, the inner diameter of the sealing ring 5 can be preferably set to be equal to or slightly larger than the outer diameter of the hose 2, so that the sealing ring 5 can be sleeved on the hose 2, and after the connection cap 4, the seal and the sleeve 3 are sleeved on the predetermined installation position on the hose 2 in sequence, the connection cap 4 is screwed on the sleeve 3, so that the sealing ring 5 clamps the hose 2, so as to realize the installation and fixation of the bushing as a whole, and facilitate the operation. After that, the bushing with the hose 2 inserted is inserted into the hole on the elastic body 1 for embedding the bushing, and the assembly of the sealing body is completed.

[0048] The sealing body described in this embodiment is provided with a bushing embedded in the elastomer 1, so that the rigid bushing protects the hose 2 and prevents the hose 2 from being excessively squeezed by the elastomer 1, thereby affecting the smooth flow of the flow channel in the hose 2.

[0049] Embodiment 2

[0050] This embodiment relates to a sealing structure of a sealed cabin, which is used to ensure the sealing performance of the sealed cabin.

[0051] In terms of overall structure, Figure 2 As shown, the sealing structure of the sealed cabin of this embodiment includes a sealing seat 7 fixedly connected to the cabin wall 6 as a mounting base, and the sealing body of the first embodiment inserted into the sealing seat 7.

[0052] As described above, the sealing structure of the sealed cabin described in this embodiment, by providing a sealing seat 7 and the sealing body as described above inserted in the sealing seat 7, can enable the hose 2 to infuse the patient in the cabin through the sealing body and ensure the sealing of the sealed cabin, thereby helping to improve the life support and treatment effects on the patient.

[0053] Based on the above overall introduction, specifically, the sealed cabin of this embodiment is a sealed cabin body of a life support transport device, and the air pressure inside and outside the sealed cabin has a certain pressure difference, and the air pressure inside the sealed cabin is relatively large. The sealing seat 7 is arranged on the bulkhead 6 of the sealed cabin as the installation base of the sealing body. The hose 2 passes through the bulkhead 6 of the sealed cabin by passing through the bushing of the sealing body to infuse the patient in the cabin. The sealing seat 7 serves as the installation base of the sealing body, which increases the contact area between the sealing body and the installation base, that is, the installation seat, and improves the sealing performance between the sealing body and the bulkhead 6.

[0054] In a specific implementation, the sealing seat 7 is provided with a through hole for inserting the sealing body, and the hole wall of the through hole can be preferably set to a structure matching the outer peripheral surface of the elastic body 1 in the sealing body to improve the sealing performance between the sealing body and the sealing seat 7. In addition, it is preferred to set the large end surface of the elastic body 1 toward the inner side of the cabin, and it is preferred to set the truncated cone-shaped elastic body 1 and the taper of the through hole on the sealing seat 7 to be between 5 and 20 degrees.

[0055] It is understandable that, since the pressure inside the cabin is relatively large relative to the pressure outside the cabin, the elastic body 1 tends to move outside the cabin under the action of pressure. To ensure the stability of the installation of the elastic body 1, when the large end face of the elastic body 1 faces the inner side of the cabin, the elastic body 1 can be tightly pushed into the through hole of the sealing seat 7 under the action of air pressure, and since the inner wall of the through hole and the outer peripheral surface of the elastic body 1 are matched with the cone, the elastic body 1 can fit tightly with the inner wall of the through hole, thereby ensuring that the elastic body 1 will not detach from the sealing seat 7, and improving the stability of the installation of the elastic body 1. When the taper of the contact surface and the guide surface are both between 5 and 20°, the elastic body 1 can be easily installed in the through hole, and at the same time, the outer peripheral surface of the elastic body 1 and the hole wall of the through hole have a certain friction force to prevent the elastic body 1 from detaching, further improving the installation stability of the elastic body 1.

[0056] As a preferred implementation form, the sealing seat 7 of this embodiment includes a base arranged on the inner side of the bulkhead 6, and a cover 71 arranged on the outer side of the bulkhead 6, and a through hole for the hose 2 to pass through is provided on the cover 71. The base includes an end plate 72 abutting against the bulkhead 6, and a cylinder 73 extending from the end plate 72 to the outside of the bulkhead 6 for the sealing body to be inserted, and the cover 71 is detachably connected to the free end of the cylinder 73.

[0057] Specifically, the cylinder 73 is provided with the above-mentioned through hole, and the free end of the cylinder 73 is provided with a threaded section for screwing the cover 71, so as to facilitate the installation of the cover 71. In the specific implementation, the outer periphery of the cover 71 of this embodiment is provided with knurling or other rough surfaces to facilitate the disassembly and assembly operation. At the same time, the diameter of the through hole on the cover 71 for passing the hose 2 is larger than the diameter of the hose 2 and smaller than the outer diameter of the connecting cap 4 and the middle section 31 of the sleeve 3, so that the cover 71 prevents the elastic body 1 and the bushing from coming out of the cylinder 73, thereby improving the stability of the installation of the sealing body.

[0058] In addition, the end plate 72 may preferably be fixed to the bulkhead 6 by welding, or the end plate 72 may preferably be provided with fixing holes arranged along the circumferential direction, and fixed to the bulkhead 6 by screwing, riveting, etc. through the fixing holes, so as to improve the structural strength of the sealing seat 7. A sealing gasket 8 is provided between one or both of the end plate 72 and the cover 71 and the bulkhead 6 to form a seal between the sealing seat 7 and the bulkhead 6, so as to improve the sealing performance of the sealed cabin.

[0059] The sealing structure of the sealed cabin described in the utility model, by providing a sealing seat 7 and the sealing body as described above inserted in the sealing seat 7, can enable the hose 2 to infuse the patient in the cabin through the sealing body and ensure the sealing of the sealed cabin, thereby helping to improve the life support and treatment effects for the patient.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing body, characterized in that: It comprises an elastic body (1) and a bushing embedded in the elastic body (1); A passage is provided in the bushing and passes through the bushing. A hose (2) can be guided through the passage and sealably cooperates with the passage.

2. The sealing body according to claim 1, characterized in that: The elastic body (1) has a radial compression of 5 to 20%.

3. The sealing body according to claim 1, characterized in that: At least part of the outer circumference of the elastic body (1) is provided with a guide surface for guiding the elastic body to be inserted into a mounting base.

4. The sealing body according to claim 3, characterized in that: The elastic body (1) is configured in a truncated cone shape.

5. The sealing body according to any one of claims 1 to 4, characterized in that: The bushing comprises a sleeve (3) and a connecting cap (4) which are detachably connected along the direction of the passage, and the sleeve can be fixedly embedded in the elastic body (1).

6. The sealing body according to claim 5, characterized in that: The connecting cap (4) is screwed onto the sleeve (3).

7. The sealing body according to claim 5, characterized in that: The connecting caps (4) are arranged to be detachably connected to two opposite ends of the sleeve.

8. The sealing body according to claim 5, characterized in that: A sealing ring (5) which can be sleeved on the hose (2) is provided between the sleeve (3) and the connecting cap (4); when the connecting cap (4) is operated to approach and connect to the sleeve (3), the sealing ring (5) is squeezed between the connecting cap (4) and the sleeve (3) and forms a radial seal between the hose (2) and the passage.

9. A sealing structure of a sealed cabin, characterized in that: The invention comprises a sealing seat (7) fixedly connected to a bulkhead (6) as a mounting base, and a sealing body as claimed in any one of claims 1 to 8 inserted in the sealing seat (7).

10. The sealing structure of the sealed cabin according to claim 9, characterized in that: The sealing seat (7) comprises a base arranged on the inner side of the bulkhead (6), and a cover (71) arranged on the outer side of the bulkhead (6), wherein the cover (71) is provided with a through hole for the hose (2) to pass through; The base comprises an end plate (72) abutting against the bulkhead (6), and a cylinder (73) extending from the end plate (72) to the outside of the bulkhead (6) for the sealing body to be inserted; the sealing cover (71) is detachably connected to the free end of the cylinder (73).

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