CN214579532U - Sealing device of pressing expansion sealing strip assembly for vacuum system - Google Patents

Abstract

The utility model discloses a sealing device of a downward-pressing expansion sealing strip component for a vacuum system, which comprises a sealing device body, wherein the upper end and the lower end of the inner cavity of a sealing tube are both provided with a sealing component, the upper end of a lower mounting plate is provided with a sealing ring, the inner cavity of the sealing ring is movably provided with a lifting ring, the periphery of the lifting ring is all provided with an annular push plate, when the upper connecting tube and the lower connecting tube are mounted at the two ends of the sealing tube, the two ends of the upper connecting tube and the two ends of the lower connecting tube are extruded with an upper mounting plate to press the movable ring downwards, a connecting rod extends outwards along with the pressing of the movable ring to push the annular push plate outwards, the sealing ring of the outer rubber material is pushed outwards, the thickened part of the sealing ring is deformed under the extrusion of external force, the vacancy of the parts, which are mounted at the two ends of the sealing tube, of the upper connecting tube and the lower connecting tube are completely filled, and the sealing degree is avoided being insufficient, and when the installation, the annular push plate continuously supports against the sealing ring, so that the looseness of the sealing ring can be avoided, and the installation is more stable.

Description

Sealing device of pressing expansion sealing strip assembly for vacuum system

Technical Field

The utility model relates to a sealing device technical field specifically is a vacuum system is with sealing device who pushes down expansion sealing strip subassembly.

Background

The vacuum system is a complete set of vacuum system which is composed of a vacuum pump, a PLC program control system, an air storage tank, a vacuum pipeline, a vacuum valve, an overseas filtering assembly and the like. At present, the system is widely applied to the industries of electronic semiconductor industry, photoelectric backlight module, mechanical processing and the like.

When each part of the vacuum system is connected, the sealing strip generally cannot fill the vacant part of the joint, and the sealing strip is worn after being used for a period of time, so that the normal use of the whole vacuum system is influenced.

In view of the above problems, a sealing device for a vacuum system is proposed for pressing and expanding a sealing strip assembly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vacuum system is with sealing device who pushes down expansion sealing strip subassembly sets up the annular push pedal that can release the sealing ring to the outside, makes the thickening position of sealing ring produce deformation under the extrusion of external force, and the position vacancy at sealed tube both ends is installed with connecting pipe down to last connecting pipe is filled completely to the problem in the above-mentioned background art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a sealing device of a pressing expansion sealing strip assembly for a vacuum system comprises a sealing device body, wherein the sealing device body comprises a sealing pipe, an upper connecting pipe, a lower connecting pipe and a fixing nut;

the upper end and the lower end of the inner cavity of the sealing pipe are both provided with a sealing assembly;

the sealing assembly comprises a lower mounting piece, a sealing ring, a lifting ring, an annular push plate and an upper mounting piece, the sealing ring is mounted at the upper end of the lower mounting piece, the lifting ring is movably mounted in an inner cavity of the sealing ring, the annular push plate is mounted on the periphery of the lifting ring, and the upper mounting piece is mounted at the upper end of the sealing ring.

Preferably, the mounting groove has been seted up to the sealed tube inner chamber, and the fixed orifices has all been seted up from top to bottom to the sealed tube, and seal assembly movable mounting is in the mounting groove.

Preferably, the lifting ring comprises a fixing ring and a movable ring, and the movable ring is movably mounted at the upper end of the fixing ring.

Preferably, fixed ring upper end fixed mounting has the buffering ring, and the first spring of a plurality of is installed to buffering ring upper end, and first spring, and buffering ring upper end movable mounting are at the activity ring inner chamber.

Preferably, the movable ring is fixedly provided with fixed heads at the periphery, and the two sides of each fixed head are movably provided with connecting rods.

Preferably, the annular push pedal comprises a moving block, a first buffer piece, a second buffer piece and a limiting block, the first buffer piece is movably mounted at the lower end of the moving block, the second buffer piece is movably mounted at the upper end of the moving block, and the limiting block is fixedly mounted at the lower end of the first buffer piece.

Preferably, the two ends of the moving block are provided with buffer grooves, and one side of the moving block is fixedly provided with a connecting piece which is movably connected with the connecting rod.

Preferably, the first buffer member and the second buffer member are assemblies formed by the same components, the lower end of the second buffer member is fixedly provided with the movable member, and the lower end of the movable member is provided with the second spring.

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

1. the utility model provides a sealing device of vacuum system with pushing down expansion sealing strip subassembly, when installing the sealed tube both ends with last connecting pipe and lower connecting pipe, go up the connecting pipe and extrude with connecting pipe both ends down and install the piece, it is extruded and then make the activity ring push down to go up the installation piece, the connecting rod is along with the activity ring pushes down to stretching out all around, and then promote annular push pedal to release all around, promote all around the sealed hoop of outside rubber material, make the thickening position of sealing ring produce deformation under the extrusion of external force, it is complete to install the position vacancy packing at sealed tube both ends with connecting pipe down, avoid when the installation leakproofness not enough, influence the normal use of device, and when the installation because annular push pedal lasts and supports the sealing ring, can avoid the sealing ring not hard up, the installation is more firm.

2. The utility model provides a vacuum system is with sealing device who pushes down expansion sealing strip subassembly, when will going up connecting pipe and connecting pipe down and demolish from the sealed tube both ends, because last installation piece loses the extrusion of external force, first spring promotes the activity ring resilience and rises, and the activity ring rises and then drives the connecting rod of fixed head both sides to the inside side motion, and then drives annular push pedal all around and retrieves, conveniently takes off seal assembly and carries out used repeatedly, practices thrift the cost.

3. The utility model provides a sealing device of vacuum system with pushing down expansion sealing strip subassembly, when last connecting pipe and connecting pipe installation down, to installing piece and last installation piece both sides down and extrude, when the annular push pedal receives the extrusion, the second spring contracts thereupon, the second spring can cushion when the second bolster pushes down, the dynamics is too big when avoiding last connecting pipe and lower connecting pipe when the installation, is out of shape damage with annular push pedal striking, extension equipment life.

Drawings

Fig. 1 is a schematic structural view of the sealing device body of the present invention;

FIG. 2 is a schematic structural view of the sealing tube of the present invention;

fig. 3 is a schematic structural view of the sealing assembly of the present invention;

fig. 4 is a schematic view of the lifting ring structure of the present invention;

fig. 5 is a schematic structural view of the annular push plate of the present invention.

In the figure: 1. a sealing device body; 11. a sealing tube; 111. mounting grooves; 112. a fixing hole; 113. a seal assembly; 1131. a lower mounting plate; 1132. a seal ring; 1133. a lifting ring; 11331. a fixing ring; 113311, buffer ring; 113312, a first spring; 11332. a movable ring; 113321, a fixed head; 113322, a connecting rod; 1134. a ring-shaped push plate; 11341. a moving block; 113411, a buffer tank; 113412, a connector; 11342. a first buffer member; 11343. a second buffer member; 113431, a moving member; 113432, a second spring; 11344. a limiting block; 1135. mounting a sheet; 12. an upper connecting pipe; 13. a lower connecting pipe; 14. and (5) fixing the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a sealing device of a downward-pressing and expanding sealing strip assembly for a vacuum system comprises a sealing device body 1, wherein the sealing device body 1 comprises a sealing tube 11, an upper connecting tube 12, a lower connecting tube 13 and a fixing nut 14, an installation groove 111 is formed in an inner cavity of the sealing tube 11, fixing holes 112 are formed in the upper and lower parts of the sealing tube 11, the sealing assembly 113 is movably installed in the installation groove 111, the sealing assembly 113 is installed at the upper end and the lower end of the inner cavity of the sealing tube 11, the sealing assembly 113 comprises a lower installation sheet 1131, a sealing ring 1132, a lifting ring 1133, an annular push plate 1134 and an upper installation sheet 1135, the upper end of the lower installation sheet 1131 is provided with the sealing ring 1132, the inner cavity of the sealing ring 1132 is movably installed with the lifting ring 1133, the lifting ring 1133 comprises a fixing ring 11331 and a movable ring 11332, a buffer ring 113311 is fixedly installed at the upper end of the fixing ring 11331, a plurality of first springs 113312 and a first spring 113312 are installed at the upper end of the buffer ring 113311, the upper end of the buffer ring 113311 is movably arranged in the inner cavity of the movable ring 11332, the upper end of the fixed ring 11331 is movably arranged with the movable ring 11332, the periphery of the movable ring 11332 is fixedly provided with a fixed head 113321, two sides of the fixed head 113321 are movably arranged with a connecting rod 113322, the periphery of the lifting ring 1133 is provided with an annular push plate 1134, the upper end of the sealing ring 1132 is provided with an upper mounting plate 1135, the upper end of the sealing pipe 11 is provided with an upper connecting pipe 12, the lower end of the sealing pipe 11 is provided with a lower connecting pipe 13, the sealing pipe 11 is movably connected with the upper connecting pipe 12 through a fixed nut 14, the sealing pipe 11 is movably connected with the lower connecting pipe 13 through a fixed nut 14, when the upper connecting pipe 12 and the lower connecting pipe 13 are arranged at two ends of the sealing pipe 11, the upper connecting pipe 12 and the lower connecting pipe 13 are pressed with the upper mounting plate 1135, the movable ring 11332 is pressed to further press down, the connecting rod 113322 extends out towards the periphery along with the pressing of the movable ring 11332 to further push the annular push plate 1134 towards the periphery, with outside rubber material's sealing ring 1132 to promote all around, make the thickening position of sealing ring 1132 produce deformation under the extrusion of external force, it is complete to install the position vacancy at sealing tube 11 both ends with last connecting pipe 12 and lower connecting pipe 13, avoid when the installation the leakproofness not enough, influence the normal use of device, and when the installation because annular push pedal 1134 continuously supports sealing ring 1132, can avoid sealing ring 1132 not hard up, the installation is more firm, when dismantling last connecting pipe 12 and lower connecting pipe 13 from sealing tube 11 both ends, because last installation piece 1135 loses the extrusion of external force, first spring 113312 promotes activity ring 11332 and kick-backs and rises, activity ring 11332 rises and then drives the inside side movement of connecting rod 113322 of fixed head 113321 both sides, and then drive annular push pedal 1134 all around and retrieve, conveniently take off seal assembly 113 and carry out used repeatedly, and save the cost.

Referring to fig. 1, 3 and 5, the annular push plate 1134 includes a moving block 11341, a first buffer 11342, a second buffer 11343 and a limiting block 11344, buffer slots 113411 are disposed at both ends of the moving block 11341, a connecting member 113412 is fixedly mounted at one side of the moving block 11341, the connecting member 113412 is movably connected to the connecting rod 113322, the first buffer 11342 is movably mounted at the lower end of the moving block 11341, the second buffer 11343 is movably mounted at the upper end of the moving block 11341, the first buffer 11342 and the second buffer 11343 are assemblies formed by the same components, a movable member 113431 is fixedly mounted at the lower end of the movable member 11343, a second spring 113432 is mounted at the lower end of the 113431, a limiting block 11344 is fixedly mounted at the lower end of the first buffer 11342, when the upper connecting pipe 12 and the lower connecting pipe 13 are mounted, both sides of the lower mounting plate 1131 and the upper mounting plate 1135 are pressed, when the annular push plate 1134 is pressed, the second spring 113432 contracts therewith, the second spring 113432 can buffer when the second buffer plate 11343 is pressed, the phenomenon that the annular push plate 1134 is impacted, deformed and damaged due to overlarge force when the upper connecting pipe 12 and the lower connecting pipe 13 are installed is avoided, and the service life of the equipment is prolonged.

The working principle is as follows: when the upper connecting pipe 12 and the lower connecting pipe 13 are installed at two ends of the sealing pipe 11, two ends of the upper connecting pipe 12 and the lower connecting pipe 13 press the upper installation plate 1135, the upper installation plate 1135 is pressed to press the movable ring 11332 downwards, the connecting rod 113322 extends outwards along with the pressing of the movable ring 11332, and further pushes the annular push plate 1134 outwards, the sealing ring 1132 made of rubber material on the outer side is pushed outwards, the thickened part of the sealing ring 1132 deforms under the pressing of external force, the gap between the parts where the upper connecting pipe 12 and the lower connecting pipe 13 are installed at two ends of the sealing pipe 11 is completely filled, when the upper connecting pipe 12 and the lower connecting pipe 13 are detached from two ends of the sealing pipe 11, because the upper installation plate 1135 loses the pressing of external force, the first spring 113312 pushes the movable ring 11332 to rebound and rise, the movable ring 11332 rises to drive the connecting rods 113322 at two sides of the fixed head 113321 to move, and further drive the annular push plate 1134 on the periphery to recover, when upper coupling pipe 12 and lower coupling pipe 13 are coupled, lower mounting piece 1131 and upper mounting piece 1135 are pressed at both sides, and when annular push plate 1134 is pressed, second spring 113432 is contracted, and second damper 11343 is pressed downward to damp second spring 113432.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A sealing device of a pressing expansion sealing strip assembly for a vacuum system comprises a sealing device body (1), and is characterized in that: the sealing device comprises a sealing device body (1) and a sealing device body, wherein the sealing device body comprises a sealing pipe (11), an upper connecting pipe (12), a lower connecting pipe (13) and a fixing nut (14), the upper connecting pipe (12) is installed at the upper end of the sealing pipe (11), the lower connecting pipe (13) is installed at the lower end of the sealing pipe (11), the sealing pipe (11) is movably connected with the upper connecting pipe (12) through the fixing nut (14), and the sealing pipe (11) is movably connected with the lower connecting pipe (13) through the fixing nut (14);

the upper end and the lower end of the inner cavity of the sealing pipe (11) are both provided with a sealing assembly (113);

seal assembly (113) install piece (1131), sealing ring (1132), go up and down ring (1133), annular push pedal (1134) and go up installation piece (1135) including down, install sealing ring (1132) down on piece (1131), sealing ring (1132) inner chamber movable mounting has go up and down ring (1133), all install annular push pedal (1134) all around go up and down ring (1133), install installation piece (1135) in sealing ring (1132) upper end.

2. The sealing device of claim 1, wherein the sealing device comprises a push-down expansion sealing strip assembly: mounting groove (111) have been seted up to sealed tube (11) inner chamber, fixed orifices (112) have all been seted up from top to bottom sealed tube (11), and seal assembly (113) movable mounting is in mounting groove (111).

3. The sealing device of claim 1, wherein the sealing device comprises a push-down expansion sealing strip assembly: the lifting ring (1133) comprises a fixing ring (11331) and a movable ring (11332), and the movable ring (11332) is movably mounted at the upper end of the fixing ring (11331).

4. A sealing device for a push-down expansion seal bar assembly for a vacuum system as claimed in claim 3, wherein: fixed ring (11331) upper end fixed mounting has buffering ring (113311), and a plurality of first spring (113312) are installed to buffering ring (113311) upper end, first spring (113312), and movable mounting is in activity ring (11332) inner chamber with buffering ring (113311) upper end activity.

5. A sealing device for a push-down expansion seal bar assembly for a vacuum system as claimed in claim 3, wherein: all fixed mounting has fixed head (113321) around activity ring (11332), and fixed head (113321) both sides movable mounting has connecting rod (113322).

6. The sealing device of claim 1, wherein the sealing device comprises a push-down expansion sealing strip assembly: the annular push plate (1134) comprises a moving block (11341), a first buffering piece (11342), a second buffering piece (11343) and a limiting block (11344), wherein the first buffering piece (11342) is movably mounted at the lower end of the moving block (11341), the second buffering piece (11343) is movably mounted at the upper end of the moving block (11341), and the limiting block (11344) is fixedly mounted at the lower end of the first buffering piece (11342).

7. The sealing device of claim 6, wherein the sealing device comprises: buffer slots (113411) are formed in two ends of the moving block (11341), a connecting piece (113412) is fixedly mounted on one side of the moving block (11341), and the connecting piece (113412) is movably connected with the connecting rod (113322).

8. The sealing device of claim 6, wherein the sealing device comprises: the first buffer piece (11342) and the second buffer piece (11343) are assemblies formed by the same parts, a movable piece (113431) is fixedly installed at the lower end of the second buffer piece (11343), and a second spring (113432) is installed at the lower end of the movable piece (113431).

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