Open type double-layer waterproof sealing device

Abstract

The utility model discloses an open type double-layer waterproof sealing device, and belongs to the field of sealing devices. The open type double-layer waterproof sealing device comprises a sealing device shell, a sliding rail is arranged on the inner wall of the sealing device shell, an electric control sliding block is arranged in the sliding rail, the open type double-layer waterproof sealing device further comprises a hydraulic cylinder, the hydraulic cylinder is arranged on the electric control sliding block, a connecting rod is arranged at the movable end of the hydraulic cylinder, and the connecting rod is connected with the electric control sliding block. A rotating bearing is arranged at the end, away from the hydraulic cylinder, of the connecting rod, and a limiting shaft is arranged on the rotating bearing. The sealing device solves the problems that when an existing sealing device is connected with a pipeline, only bolts or other fasteners are used for completing connection, but due to the connection mode, the connection position of the pipeline and the sealing device is possibly eroded by liquid in the pipeline for a long time after long-time use, and the sealing device loses the sealing effect.

Description

Technical Field

[0001] The utility model relates to the field of sealing devices, in particular to an open double-layer waterproof sealing device. Background Art

[0002] A sealing device may refer to a component or combination of components used to prevent fluid or solid particles from leaking between adjacent joint surfaces or to prevent foreign matter such as dust and moisture from invading the interior of the sealed structure;

[0003] The Chinese patent with the publication number CN212928830U discloses a sealing device for a sealed ball valve, comprising a valve seat, a ball core and a valve stem, the two ends of the valve seat are respectively connected to an external liquid inlet pipe and a liquid outlet pipe through flanges, a storage groove is provided on the inner periphery of the valve seat near one end of the liquid inlet pipe, and two groups of symmetrical storage blocks are integrally formed on the inner periphery of the valve seat near one end of the storage groove, a filter is provided at the center of the storage groove, a ball core is provided at the center of the valve seat, and a limit groove is provided on the inner periphery of the upper half and the lower half of the valve seat, a rotating shaft rotatably connected to the valve seat is integrally formed at the bottom of the ball core, two groups of limiters are provided on the outer periphery of the ball core, a hollow column is fixedly welded on the top of the valve seat, and a valve stem is provided at the center of the hollow column, a handle is fixedly welded on the top of the valve stem, and a locking member is provided between the handle and the outer periphery of the hollow column. The sealing device for a sealed ball valve can reduce the possibility of blockage and improve the stability of use.

[0004] The sealing device of the above patent only uses bolts or other fasteners to complete the connection with the pipeline, but this connection method may cause the connection between the pipeline and the sealing device to be corroded by the liquid in the pipeline for a long time after long-term use, causing the sealing device to lose its sealing effect. Utility Model Content

[0005] The utility model aims to provide an open double-layer waterproof sealing device, wherein a slide rail is arranged in a sealing device housing, an electric control slider is arranged in the slide rail, a hydraulic cylinder is arranged on the electric control slider, a connecting rod is arranged on the movable end of the hydraulic cylinder, and a rotating bearing is arranged on the end of the connecting rod away from the movable end of the hydraulic cylinder, and a limiting shaft is arranged on the rotating bearing. The setting of the limiting shaft can insert a waterproof tape on the limiting shaft, make the limiting shaft pass through the center of the waterproof tape, and then pull out one end of the waterproof tape and wrap it around the pipe interface inserted into the sealing device housing. The electric control slider moves in the slide rail. Since the slide rails are spirally distributed, the sliding track of the electric control slider is also spiral. The waterproof tape can be wrapped around the pipe interface to complete the sealing, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an open double-layer waterproof sealing device, including a sealing device housing, a slide rail is arranged on the inner wall of the sealing device housing, an electric control slider is arranged in the slide rail, and also includes a hydraulic cylinder, the hydraulic cylinder is arranged on the electric control slider, a connecting rod is arranged on the movable end of the hydraulic cylinder, a rotating bearing is arranged on the end of the connecting rod away from the hydraulic cylinder, a limiting shaft is arranged on the rotating bearing, and a limiting bolt is arranged on the end of the limiting shaft away from the rotating bearing.

[0007] Preferably, an outer sleeve is provided on the sealing device housing, and the outer sleeve is welded to the sealing device housing.

[0008] Preferably, the sealing device housing is provided with an inner sleeve inside the outer sleeve, and the inner sleeve is welded to the sealing device housing.

[0009] Preferably, the inner sleeve is provided with a first connecting flange on one end away from the sealing device housing.

[0010] Preferably, the outer sleeve is provided with a second connecting flange on one end away from the sealing device housing.

[0011] Preferably, a rubber gasket is provided on the first connecting flange, and the rubber gasket is adhesively connected to the first connecting flange.

[0012] Preferably, the inner sleeve is provided with an insertion opening at one end away from the sealing device housing.

[0013] Preferably, a clamping block is provided on the movable end of the hydraulic cylinder, and the clamping block is welded to the movable end of the hydraulic cylinder.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model comprises a slide rail arranged in a sealing device housing, an electric control slider arranged in the slide rail, a hydraulic cylinder arranged on the electric control slider, a connecting rod arranged on a movable end of the hydraulic cylinder, and a rotating bearing arranged on an end of the connecting rod away from the movable end of the hydraulic cylinder, a limiting shaft arranged on the rotating bearing, the limiting shaft can be provided with a waterproof tape inserted on the limiting shaft, so that the limiting shaft passes through the center of the waterproof tape, and then one end of the waterproof tape is pulled out and wound around the pipe interface inserted into the sealing device housing, the electric control slider moves in the slide rail, and because each slide rail is distributed in a spiral shape, the sliding track of the electric control slider is also spiral, and the waterproof tape can be wound around the pipe interface to complete the sealing, effectively avoiding the problem that the existing sealing device is connected to the pipe only by bolts or other fasteners, but this connection method may cause the connection between the pipe and the sealing device to be eroded by the liquid in the pipe for a long time after long-term use, resulting in the sealing device losing the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall right side structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the housing structure of the sealing device of the utility model;

[0019] Figure 4 It is a schematic diagram of the rear end structure of the sealing device housing of the utility model.

[0020] In the figure: 1. Sealing device housing; 2. Outer casing; 3. Slide rail; 4. Electric control slider; 5. Hydraulic cylinder; 6. Connecting rod; 7. Rotary bearing; 8. Limiting shaft; 9. Limiting bolt; 10. Clamping block; 11. Inner casing; 12. Insertion port; 13. First connecting flange; 14. Rubber gasket; 15. Second connecting flange. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to solve the problem that in the prior art, the sealing device is connected to the pipeline only by bolts or other fasteners, but this connection method may cause the connection between the pipeline and the sealing device to be corroded by the liquid in the pipeline for a long time after long-term use, causing the sealing device to lose its sealing effect, this embodiment provides the following technical solutions:

[0023] The open double-layer waterproof sealing device comprises a sealing device housing 1, a slide rail 3 is arranged on the inner wall of the sealing device housing 1, an electric control slider 4 is arranged in the slide rail 3, and a hydraulic cylinder 5 is arranged on the electric control slider 4, a connecting rod 6 is arranged on the movable end of the hydraulic cylinder 5, a rotating bearing 7 is arranged on the end of the connecting rod 6 away from the hydraulic cylinder 5, a limiting shaft 8 is arranged on the rotating bearing 7, and a limiting bolt 9 is arranged on the end of the limiting shaft 8 away from the rotating bearing 7, an outer sleeve 2 is arranged on the sealing device housing 1, the outer sleeve 2 is welded to the sealing device housing 1, and the sealing device housing 1 is connected to the outer sleeve An inner sleeve 11 is provided inside the tube 2, and the inner sleeve 11 is welded to the sealing device housing 1. A first connecting flange 13 is provided on the end of the inner sleeve 11 away from the sealing device housing 1. A second connecting flange 15 is provided on the end of the outer sleeve 2 away from the sealing device housing 1. A rubber gasket 14 is provided on the first connecting flange 13, and the rubber gasket 14 is adhesively connected to the first connecting flange 13. An insertion port 12 is provided on the end of the inner sleeve 11 away from the sealing device housing 1. A clamping block 10 is provided on the movable end of the hydraulic cylinder 5, and the clamping block 10 is welded to the movable end of the hydraulic cylinder 5.

[0024] In this embodiment, please refer to Figure 1-Figure 4 A slide rail 3 is arranged in the sealing device housing 1, and an electric control slider 4 is arranged in the slide rail 3. A hydraulic cylinder 5 is arranged on the electric control slider 4. A connecting rod 6 is arranged on the movable end of the hydraulic cylinder 5, and a rotary bearing 7 is arranged on the end of the connecting rod 6 away from the movable end of the hydraulic cylinder 5. A limit shaft 8 is arranged on the rotary bearing 7. The setting of the limit shaft 8 can insert the waterproof tape on the limit shaft 8, so that the limit shaft 8 passes through the center of the waterproof tape, and then pull out one end of the waterproof tape and wrap it around the pipe interface inserted into the sealing device housing 1. The electric control slider 4 moves in the slide rail 3. Because each slide rail 3 is spirally distributed, the sliding track of the electric control slider 4 is also spiral, and the waterproof tape can be wrapped around the pipe interface to complete the sealing;

[0025] Working principle: a slide rail 3 is arranged in the sealing device housing 1, and an electric control slider 4 is arranged in the slide rail 3, a hydraulic cylinder 5 is arranged on the electric control slider 4, a connecting rod 6 is arranged on the movable end of the hydraulic cylinder 5, and a rotating bearing 7 is arranged on the end of the connecting rod 6 away from the movable end of the hydraulic cylinder 5, and a limiting shaft 8 is arranged on the rotating bearing 7. The setting of the limiting shaft 8 can insert the waterproof tape on the limiting shaft 8, make the limiting shaft 8 pass through the center of the waterproof tape, and then pull out one end of the waterproof tape and wrap it around the pipe interface inserted into the sealing device housing 1. The electric control slider 4 moves in the slide rail 3. Because each slide rail 3 is spirally distributed, the sliding track of the electric control slider 4 is also spiral, and the waterproof tape can be wrapped around the pipe interface to complete the sealing.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including 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.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An open double-layer waterproof sealing device, comprising a sealing device housing (1), a slide rail (3) being arranged on the inner wall of the sealing device housing (1), and an electric control slider (4) being arranged inside the slide rail (3); Features: It also includes a hydraulic cylinder (5), the hydraulic cylinder (5) is arranged on the electric control slider (4), a connecting rod (6) is arranged on the movable end of the hydraulic cylinder (5), a rotating bearing (7) is arranged on the end of the connecting rod (6) away from the hydraulic cylinder (5), a limiting shaft (8) is arranged on the rotating bearing (7), and a limiting bolt (9) is arranged on the end of the limiting shaft (8) away from the rotating bearing (7).

2. The open double-layer waterproof sealing device according to claim 1, characterized in that: An outer sleeve (2) is provided on the sealing device housing (1), and the outer sleeve (2) is welded to the sealing device housing (1).

3. The open double-layer waterproof sealing device according to claim 2, characterized in that: The sealing device housing (1) is provided with an inner sleeve (11) inside the outer sleeve (2), and the inner sleeve (11) is welded to the sealing device housing (1).

4. The open double-layer waterproof sealing device according to claim 3, characterized in that: The inner sleeve (11) is provided with a first connecting flange (13) at one end away from the sealing device housing (1).

5. The open double-layer waterproof sealing device according to claim 2, characterized in that: The outer sleeve (2) is provided with a second connecting flange (15) at one end away from the sealing device housing (1).

6. The open double-layer waterproof sealing device according to claim 4, characterized in that: A rubber gasket (14) is provided on the first connecting flange (13), and the rubber gasket (14) is adhesively connected to the first connecting flange (13).

7. The open double-layer waterproof sealing device according to claim 4, characterized in that: The inner sleeve (11) is provided with an insertion opening (12) at one end away from the sealing device housing (1).

8. The open double-layer waterproof sealing device according to claim 1, characterized in that: A clamping block (10) is provided on the movable end of the hydraulic cylinder (5), and the clamping block (10) is welded to the movable end of the hydraulic cylinder (5).

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