Rotary vacuum sealing device

Abstract

The utility model provides a rotary vacuum sealing device, which belongs to the field of sealing and comprises a sealing cylinder, a clamping piece is mounted at the top end of the sealing cylinder, a sealing cover is mounted at the top end of the clamping piece, and the sealing cover is hinged to the sealing cylinder. The clamping piece comprises a connecting ring, the connecting ring is installed at the top end of the sealing cylinder, and the outer wall of the sealing cylinder is fixedly connected with a plurality of clamping sleeves which are arranged at equal intervals; the sealing cover comprises a cover body, an open groove is formed in the bottom end of the cover body, a worm gear is rotationally connected into the cover body, the sealing cover body and the sealing cylinder can be conveniently connected through a clamping piece, the purpose of rotary sealing can be achieved, threaded connection is not needed, and leakage caused by thread abrasion and sealing performance reduction during common threaded connection is prevented. The worm wheel rotates to drive the arc-shaped clamping block to rotate and move, the arc-shaped clamping block is clamped into the clamping sleeve when moving, and therefore the cover can be fixed to the sealing cylinder, and the sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the field of sealing, in particular to a rotary vacuum sealing device. Background Art

[0002] A rotary vacuum sealing device is a device that can achieve vacuum sealing in a rotating state. Through clever design and precise structure, it effectively prevents gas leakage during rotation and maintains the stability of the vacuum environment. Generally, a motor drives the rotating shaft, which drives the basket to rotate to complete dehydration and deoiling. This requires high sealing between the rotating shaft and the rotating parts. At present, the rotating parts of vacuum low-temperature dehydration equipment on the market are sealed with O-rings, which are prone to leakage and poor sealing after long-term operation.

[0003] Chinese patent authorization application number: CN202022168704.3, provides a vacuum low-temperature dehydration equipment rotary sealing device, which solves the sealing problem of the rotating shaft after long-term work by arranging a Gray ring in the first groove, ensuring that it is still tightly sealed, especially the rotating shaft is connected to the sleeve through the second bearings at both ends, and the middle part of the two second bearings does not contact the rotating shaft, effectively reducing the friction when the rotating shaft rotates, and the second bearing is a tapered roller bearing. Compared with the deep groove ball bearing in the prior art, the internal structure of the tapered roller bearing adopts parallel arrangement of rollers, and spacers or isolation blocks are installed between the rollers to prevent the rollers from tilting or rubbing against each other. The radial load bearing capacity is relatively large, which effectively prevents the increase of the rotating torque of the rotating shaft. However, after the rollers have been used for a long time, their lubrication is insufficient, and they may not be opened when opened, which is not conducive to use.

[0004] Therefore, it is necessary to provide a rotary vacuum sealing device to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a rotary vacuum sealing device.

[0006] The utility model provides a rotary vacuum sealing device, comprising a sealing cylinder, a clamping piece is installed on the top end of the sealing cylinder, a sealing cover is installed on the top end of the clamping piece, and the sealing cover is hinged to the sealing cylinder; the clamping piece comprises a connecting ring, the connecting ring is installed on the top end of the sealing cylinder, and the outer wall of the sealing cylinder is fixedly connected with a plurality of equidistantly arranged clamping sleeves; the sealing cover comprises a lid, a slot is provided at the bottom end of the lid, a worm gear is rotatably connected to the inside of the lid, a plurality of equidistantly arranged vertical shafts are fixedly connected to the bottom end of the worm gear, the vertical shaft passes through the slot, the vertical shaft is slidably connected to the slot, an arc-shaped clamping block is fixedly connected to the bottom end of the vertical shaft, the arc-shaped clamping block is adapted to the clamping sleeve, and the arc-shaped clamping block passes through the clamping sleeve.

[0007] Preferably, the sealing cylinder comprises a cylinder body, a top end of the cylinder body is fixedly connected to a hinge, and an inner end of the hinge is fixedly connected to a connecting shaft.

[0008] Preferably, the sealing cover further comprises a shaft cylinder, which is sleeved on the outer end of the connecting shaft and located on the inner side of the hinge.

[0009] Preferably, a sleeve block is fixedly connected to the top end of the shaft cylinder, and the right end of the sleeve block is fixedly connected to the cover, and the sleeve block and the cover are both hollow structures.

[0010] Preferably, an inner cover is installed inside the cover.

[0011] Preferably, a worm is installed inside the sleeve block, the worm runs through the front end of the sleeve block, the front end of the worm is fixedly connected with a knob, and the knob is located at the front side of the sleeve block.

[0012] Compared with the related art, the rotary vacuum sealing device provided by the utility model has the following beneficial effects:

[0013] 1. A rotary vacuum sealing device, by turning the knob, the knob drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the arc-shaped clamping block to rotate and move, and the arc-shaped clamping block is stuck into the clamping sleeve when moving, so that the cover can drive the inner cover to be fixed on the sealing cylinder to achieve the sealing effect.

[0014] 2. A rotary vacuum sealing device, wherein the cover is conveniently covered on the cylinder body through the cooperation between the shaft cylinder and the connecting shaft, and the inner cover seals the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the sealing cover opening structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the overall split structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the sealing cover structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the cutaway structure of the sealing cover of the utility model;

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the worm gear, vertical shaft and arc-shaped clamping block of the utility model.

[0021] Numbers in the figure: 1, sealing cylinder; 2, clamping part; 3, sealing cover; 101, cylinder; 102, hinge; 103, connecting shaft; 201, connecting ring; 202, clamping sleeve; 301, shaft cylinder; 302, sleeve block; 303, cover; 304, inner cover; 305, worm; 306, knob; 307, worm wheel; 308, vertical shaft; 309, arc-shaped clamping block. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figures 1 to 6 A rotary vacuum sealing device provided by an embodiment of the utility model comprises a sealing cylinder 1, a clamping member 2 is installed at the top of the sealing cylinder 1, a sealing cover 3 is installed at the top of the clamping member 2, and the sealing cover 3 is hinged to the sealing cylinder 1; the clamping member 2 comprises a connecting ring 201, the connecting ring 201 is installed at the top of the sealing cylinder 1, and the outer wall of the sealing cylinder 1 is fixedly connected with a plurality of ferrules 202 arranged at equal intervals; the sealing cover 3 comprises a lid 303, a slot is provided at the bottom end of the lid 303, a worm gear 307 is rotatably connected inside the lid 303, a plurality of vertical shafts 308 arranged at equal intervals are fixedly connected at the bottom end of the worm gear 307, the vertical shaft 308 passes through the slot, the vertical shaft 308 is slidably connected to the slot, and an arc-shaped block 309 is fixedly connected to the bottom end of the vertical shaft 308, the arc-shaped block 309 is adapted to the ferrule 202, and the arc-shaped block 309 passes through the ferrule 202;

[0024] The sealing cover 3 is conveniently connected to the sealing cylinder 1 through the clamping piece 2, so as to achieve the purpose of rotary sealing, without the need for threaded connection, and to prevent leakage caused by thread wear and reduced sealing during ordinary threaded connection. The rotation of the worm gear 307 drives the arc-shaped clamping block 309 to rotate and move, and the arc-shaped clamping block 309 is clamped into the clamping sleeve 202 when moving, so that the cover 303 can be fixed on the sealing cylinder 1 to achieve the effect of sealing.

[0025] The sealing cylinder 1 comprises a cylinder body 101 , a hinge 102 is fixedly connected to the top end of the cylinder body 101 , and a connecting shaft 103 is fixedly connected to the inner end of the hinge 102 .

[0026] The sealing cover 3 further includes a shaft cylinder 301 , which is sleeved on the outer end of the connecting shaft 103 and located on the inner side of the hinge 102 .

[0027] The top end of the shaft cylinder 301 is fixedly connected with a sleeve block 302 , and the right end of the sleeve block 302 is fixedly connected with a cover 303 . Both the sleeve block 302 and the cover 303 are hollow structures.

[0028] An inner cover 304 is installed inside the cover 303 .

[0029] A worm 305 is installed inside the sleeve block 302. The worm 305 passes through the front end of the sleeve block 302. The front end of the worm 305 is fixedly connected to a knob 306. The knob 306 is located at the front side of the sleeve block 302.

[0030] Put the cover 303 on the cylinder 101, and the inner cover 304 seals the cylinder 101, then turn the knob 306, the knob 306 drives the worm 305 to rotate, the worm 305 drives the worm wheel 307 to rotate, the worm wheel 307 drives the arc block 309 to rotate and move, and the arc block 309 is stuck in the sleeve 202 when moving, so that the cover 303 can drive the inner cover 304 to be fixed on the sealing cylinder 1 to achieve the sealing effect.

[0031] During operation, first, the cover 303 is covered on the cylinder 101 through the cooperation between the shaft cylinder 301 and the connecting shaft 103, and the inner cover 304 seals the cylinder 101. Then, the knob 306 is turned, and the knob 306 drives the worm 305 to rotate, and the worm 305 drives the worm wheel 307 to rotate, and the worm wheel 307 drives the arc block 309 to rotate and move. When the arc block 309 moves, it will be stuck in the sleeve 202. In this way, the cover 303 can drive the inner cover 304 to be firmly fixed on the sealing cylinder 1, thereby achieving a sealing effect.

[0032] 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.

[0033] 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. A rotary vacuum sealing device, characterized in that: It comprises a sealing cylinder (1), a clamping piece (2) is installed at the top end of the sealing cylinder (1), a sealing cover (3) is installed at the top end of the clamping piece (2), and the sealing cover (3) is hinged to the sealing cylinder (1); The clamping member (2) comprises a connecting ring (201), the connecting ring (201) is mounted on the top end of the sealing cylinder (1), and the outer wall of the sealing cylinder (1) is fixedly connected with a plurality of equidistantly arranged clamping sleeves (202); The sealing cover (3) comprises a cover (303), a slot is formed at the bottom end of the cover (303), a worm gear (307) is rotatably connected inside the cover (303), a plurality of vertical shafts (308) arranged equidistantly are fixedly connected at the bottom end of the worm gear (307), the vertical shafts (308) pass through the slot, the vertical shafts (308) are slidably connected to the slot, an arc-shaped clamping block (309) is fixedly connected at the bottom end of the vertical shaft (308), the arc-shaped clamping block (309) is adapted to the clamping sleeve (202), and the arc-shaped clamping block (309) passes through the clamping sleeve (202).

2. A rotary vacuum sealing device according to claim 1, characterized in that: The sealing cylinder (1) comprises a cylinder body (101), the top end of the cylinder body (101) is fixedly connected to a hinge (102), and the inner end of the hinge (102) is fixedly connected to a connecting shaft (103).

3. A rotary vacuum sealing device according to claim 1, characterized in that: The sealing cover (3) further comprises a shaft cylinder (301), wherein the shaft cylinder (301) is sleeved on the outer end of the connecting shaft (103) and is located on the inner side of the hinge (102).

4. A rotary vacuum sealing device according to claim 3, characterized in that: The top end of the shaft cylinder (301) is fixedly connected to a sleeve block (302), and the right end of the sleeve block (302) is fixedly connected to a cover (303). Both the sleeve block (302) and the cover (303) are hollow structures.

5. A rotary vacuum sealing device according to claim 4, characterized in that: An inner cover (304) is installed inside the cover (303).

6. A rotary vacuum sealing device according to claim 4, characterized in that: A worm (305) is installed inside the sleeve block (302), and the worm (305) passes through the front end of the sleeve block (302). The front end of the worm (305) is fixedly connected to a knob (306), and the knob (306) is located at the front side of the sleeve block (302).

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