An apparatus for delivering ducts to an enclosed space
The combination structure of sleeve, fixed plate and movable plate solves the sealing problem when transferring pipes in a closed space, and achieves the maintenance of the integrity and sealing of the closed space during the replacement process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI OPM BIOSCI CO LTD
- Filing Date
- 2025-03-06
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, it is difficult to maintain a seal when transferring pipes in enclosed spaces, especially when replacing and disassembling pipes, which can easily lead to contamination and pressure changes in the enclosed space.
The system employs a combination structure of sleeve, fixed plate, and movable plate. By rotating the movable plate, the axial projection of the pipe hole falls into the through hole. Combined with a nut, spring, and anti-torsion structure, a sealing fit is achieved between the pipe and the fixed plate.
Maintain a seal during pipe replacement and disassembly to ensure the integrity of the enclosed space and prevent contamination and pressure changes.
Smart Images
Figure CN224497781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of experimental instruments, and in particular to a device for transmitting pipes into enclosed spaces. Background Technology
[0002] In existing technologies, there are often situations where materials are transported into enclosed spaces. This requires that the pipelines used for transporting materials be connected to the enclosed space in a sealed manner to ensure that the enclosed space is not contaminated. However, in actual use, the pipelines are not static, especially the diameter, because the materials to be transported vary.
[0003] Current pipe transfer methods involve creating a large-diameter pipe hole in a closed space. Normally, this hole is sealed with a plug. When needed, the plug is removed, and the required pipe is inserted into the closed space through the hole. The gap between the pipe and the hole is then sealed with a sealing material. While this method can transfer pipes of different diameters into a closed space, the seal between the pipe and the hole is unstable and frequently fails, especially during pipe replacement and disassembly when the hole is open. This further leads to contamination and pressure changes within the closed space. Summary of the Invention
[0004] In view of the problem that it is difficult to keep the pipe sealed in the enclosed space when transferring pipes in the prior art, the purpose of this utility model is to provide a device for transferring pipes to the enclosed space, so as to at least partially solve the above-mentioned problem.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] An apparatus for transferring pipes to an enclosed space includes a sleeve, a fixed plate, and a movable plate; the sleeve is used to connect the enclosed space, the fixed plate is fixedly and sealedly installed in the sleeve, the movable plate is rotatably connected in the sleeve, and the movable plate is in a sealing fit with the fixed plate; the fixed plate has a through hole, and the movable plate has a plurality of through holes of different diameters, and by rotating the movable plate, the axial projection of each of the through holes falls into the through hole respectively.
[0007] In some preferred embodiments, a shaft is mounted on the fixed plate, and a corresponding shaft hole adapted to the shaft is provided on the movable plate.
[0008] In some preferred embodiments, a nut threaded onto the shaft is also included, and a spring is sleeved on the shaft between the nut and the movable plate.
[0009] In some preferred embodiments, an anti-torsion structure is provided between the spring and the movable plate.
[0010] In some preferred embodiments, one of the shaft and the movable plate is provided with a spring ball, and the other is provided with a ball groove adapted to the spring ball.
[0011] In some preferred embodiments, the number and arrangement of the ball-touching grooves are the same as those of the through holes, and when the spring ball-touching beads correspond to each of the ball-touching grooves, the through holes correspond to each of the through holes.
[0012] In some preferred embodiments, the sleeve has stepped holes for arranging the fixed plate and the movable plate, and the fixed plate is fixed in the stepped holes by screws or pins.
[0013] In some preferred embodiments, a sealing ring is provided on the outside of the through hole.
[0014] In some preferred embodiments, a cover plate for covering the movable plate is further included, the cover plate being rotatably connected in the sleeve, and the cover plate having a notch for the pipe to pass through.
[0015] In some preferred embodiments, the notch on the cover plate is used only to expose a single through hole on the movable plate.
[0016] The beneficial effects of this utility model by adopting the above technical solution are as follows: This utility model, through the combined use of sleeve, fixed plate and movable plate, enables the pipeline to remain sealed during replacement and disassembly, thereby enabling the transmission of pipelines of different diameters to a closed space under completely sealed conditions. Attached Figure Description
[0017] Figure 1 This is a cross-sectional view of the present invention.
[0018] Figure 2 This is the front view of the sleeve in this utility model.
[0019] Figure 3 This is the front view of the fixing plate in this utility model.
[0020] Figure 4 This is the front view of the movable plate in this utility model.
[0021] In the diagram: 1-sleeve, 2-fixed plate, 21-through hole, 3-movable plate, 31-through pipe hole, 4-cover plate, 41-notch, 5-shaft, 6-nut, 7-spring, 8-anti-torsion structure, 9-spring ball. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0023] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the description of the structure of this utility model shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] The terms "first" and "second" in this technical solution are merely designations for corresponding structures that are identical or similar, or that perform similar functions. They do not represent an arrangement of the importance of these structures, nor do they imply any ranking, comparison of size, or other meaning.
[0025] Furthermore, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, a connection 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 an indirect connection through an intermediate medium; it can be a connection within two structures. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the overall concept and the specific context of the solution.
[0026] Example
[0027] A device for transferring pipes to enclosed spaces, which can be used to transfer pipes from open spaces to enclosed spaces, and also to transfer pipes from one enclosed space to another, such as enclosed rooms, laboratories, containers, etc. Figures 1-4 As shown, it includes a sleeve 1, a fixed plate 2, a movable plate 3, and a cover plate 4.
[0028] The sleeve 1 has a cylindrical structure, and its far end is fixed to the wall of the room by a flange and screws. At the same time, the wall of the room has a hole that communicates with the sleeve 1.
[0029] A stepped hole is provided on one side of the proximal end of the sleeve 1. The fixed plate 2, the movable plate 3, and the cover plate 4 are arranged in the stepped hole from far to near. The fixed plate 2 is fixed to the stepped surface of the stepped hole by screws or pins, and a sealing ring is provided between the fixed plate 2 and the stepped surface of the stepped hole.
[0030] A shaft 5 is fixedly installed at the center of the near end face of the fixed plate 2. The center of the movable plate 3 and the cover plate 4 are both provided with shaft holes that are compatible with the shaft 5, so that the movable plate 3 and the cover plate 4 can be rotatably connected in the sleeve 1.
[0031] The fixed plate 2 has a through hole 21, the movable plate 3 has several through holes 31, and the cover plate 4 has a notch 41. The diameters of the through holes 31 are different, and when the movable plate 3 rotates to different positions, the axial projection of each through hole 31 falls completely within the through hole 21. For example, the diameter of the through hole 21 is larger than the diameter of all the through holes 31, and the center of the through hole 21 and each through hole 31 is equidistant from the axis of the sleeve 1. This ensures that each through hole 31 has a chance to be directly aligned with the through hole 21 when the movable plate 3 rotates, without affecting the passage of the pipe. In this embodiment, it is further preferred that the through holes 31 are arranged circumferentially and uniformly on the movable plate 3.
[0032] On the near end side of the fixed plate 2, a sealing ring is provided on the outside of its through hole 21 to achieve a sealing effect between the movable plate 3 and the fixed plate 2.
[0033] To ensure a good seal between the movable plate 3 and the fixed plate 2, this embodiment also includes a nut 6 threaded onto the shaft 5, and a spring 7 is fitted on the shaft 5 between the nut 6 and the cover plate 4. By tightening the nut 6, a certain pressure is applied to the cover plate 4 via the spring 7, causing the movable plate 3 and the fixed plate 2 to press against each other, thus achieving a better seal. To prevent the spring 7 from rotating when the nut 6 is tightened or the cover plate 4 is rotated, an anti-torsion structure 8, such as a bearing (preferably a disc bearing), is provided between the spring 7 and the cover plate 4. This structure reduces friction through the rolling action of the bearing, thereby preventing the spring 7 from tortuous deformation.
[0034] In this embodiment, the shaft 5 is provided with spring-loaded balls 9 arranged radially, and the shaft hole of the movable plate 3 is provided with corresponding ball-loaded grooves adapted to the spring-loaded balls 9. The number and arrangement of the ball-loaded grooves are the same as those of the through holes 31, and when the spring-loaded balls 9 correspond to each ball-loaded groove, the through holes 21 correspond to each through hole 31. This arrangement gives the movable plate 3 a "gear"-like stopping effect when rotating, with each "gear" corresponding to a position where a through hole 31 of a certain diameter is directly opposite to a through hole 21. Conversely, the spring-loaded balls 9 can also be arranged on the movable plate 3. It is easy to understand that spring-loaded balls 9 can also be provided on both the shaft 5 and the movable plate 3, and corresponding ball-loaded grooves can also be provided on the corresponding positions of the shaft 5 and the movable plate 3, so that there is a double "gear" stopping effect between the shaft 5 and the movable plate 3.
[0035] In this embodiment, the notch 41 on the cover plate 4 is only used to expose a single through hole 31 on the movable plate 3. For example, the notch 41 is fan-shaped and its angle is the same as the included angle between two adjacent through holes 31.
[0036] It is easy to understand that the cover plate 4 is not necessary and it is feasible to remove it. However, keeping the cover plate 4 can protect the unused through holes 31 on the movable plate 3 during use and prevent impurities from entering.
[0037] The working process of the device for transferring pipes to an enclosed space provided in this embodiment of the utility model is as follows:
[0038] In use, sleeve 1 is fixed to the wall of an enclosed space (i.e., a room) with screws. When it is necessary to pass a pipe into the enclosed space, first rotate cover plate 4 so that its notch 41 aligns with the corresponding through hole 31 on movable plate 3. Then, insert the end of the pipe into the through hole 31. Since the pipe to be passed is approximately the same size as the through hole 31, it can be sealed by passing the pipe through the through hole 31. Then, rotate movable plate 3 and cover plate 4 simultaneously so that the pipe aligns with the through hole 21 on fixed plate 2. The pipe can then pass through fixed plate 2 and extend into the enclosed space through sleeve 1. When it is necessary to replace the pipe with a different diameter, first pull out the currently used pipe until its end leaves the through hole 21 on fixed plate 2. Then, rotate movable plate 3 and cover plate 4 simultaneously so that the pipe is completely misaligned from the through hole 21 on fixed plate 2. The pipe can then be completely pulled out of sleeve 1. Repeat the above steps to replace the pipe with a new pipe of a different diameter.
[0039] Compared to existing technologies, the device for delivering pipes to enclosed spaces provided in this embodiment of the invention can deliver pipes of different diameters to enclosed spaces under completely sealed conditions.
[0040] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A device for delivering pipes to an enclosed space, characterized in that: It includes a sleeve, a fixed plate, and a movable plate; the sleeve is used to connect the enclosed space, the fixed plate is fixedly and sealed in the sleeve, the movable plate is rotatably connected in the sleeve, and the movable plate is sealed to the fixed plate; the fixed plate has a through hole, and the movable plate has a plurality of through holes of different diameters, and by rotating the movable plate, the axial projection of each of the through holes falls into the through hole respectively.
2. The device according to claim 1, characterized in that: A shaft is mounted on the fixed plate, and a corresponding shaft hole adapted to the shaft is opened on the movable plate.
3. The device according to claim 2, characterized in that: It also includes a nut threaded onto the shaft, and a spring is fitted on the shaft between the nut and the movable plate.
4. The device according to claim 3, characterized in that: An anti-torsion structure is provided between the spring and the movable plate.
5. The device according to claim 2, characterized in that: One of the shaft and the movable plate is provided with a spring ball, and the other is provided with a ball groove adapted to the spring ball.
6. The device according to claim 5, characterized in that: The number and arrangement of the ball-touching grooves are the same as those of the through holes, and when the spring ball-touching beads correspond to each of the ball-touching grooves, the through holes correspond to each of the through holes.
7. The device according to claim 1, characterized in that: The sleeve has stepped holes for arranging the fixed plate and the movable plate, and the fixed plate is fixed in the stepped holes by screws or pins.
8. The device according to claim 1, characterized in that: A sealing ring is provided on the outside of the through hole.
9. The device according to any one of claims 1-8, characterized in that: It also includes a cover plate for covering the movable plate, the cover plate being rotatably connected in the sleeve, and the cover plate having a notch for the pipe to pass through.
10. The device according to claim 9, characterized in that: The notch on the cover plate is only used to expose a single through hole on the movable plate.