CN209943509U - Rubber sealing gasket for plunger type positioning - Google Patents

Abstract

The utility model relates to a plunger type positioning rubber sealing gasket, which comprises a rubber body, wherein the shape and the width of the rubber body are both consistent with the end surface of a cylinder body, the upper surface and/or the lower surface of the rubber body are provided with a plurality of plungers, and the plungers and the rubber body are of an integral structure; the upper surface and the lower surface of the rubber body are provided with two sealing ribs, and the two sealing ribs on the upper surface or the lower surface are respectively arranged at the positions, close to the edge, of the rubber body and are always spaced from the edge of the rubber body by a certain distance; the plunger is arranged in the middle of the two sealing ribs. The utility model aims to solve the technical problem that the requirement to the cylinder body cylinder cap when current sealed pad uses is higher, and the processing cost is high, and the installation effectiveness is low to can not effectual vibration isolation fall make an uproar.

Description

Rubber sealing gasket for plunger type positioning

Technical Field

The utility model relates to a sealed technical field, more specifically, the utility model relates to a plunger type location rubber seal pad.

Background

The end face sealing is a sealing principle widely applied in the mechanical industry, and along with the continuous improvement of the manufacturing technology, the problems of cost, beat, vibration isolation, noise reduction and the like are brought forward. The traditional embedded end face sealing mode at present is as follows: the groove is processed on the box body, the sealing gasket is embedded into the groove to play a role in preliminary determination, and the cover plate is fixedly connected with the box body through the bolt to ensure no clearance.

By using the sealing gasket, after the cylinder body and the cylinder cover are cast and formed, a machining process is required, namely, the end face is subjected to flatness processing, and then the cylinder body is subjected to groove processing, so that the processing is complex and the cost is high. The installation is difficult, the installation beat is long, and the integral production efficiency is influenced; because the sealing gasket is arranged in the groove, the edges of the end surfaces of the cylinder body and the cylinder cover can be attached together due to the fact that the sealing gasket does not block, namely, no gap exists, and the functions of vibration isolation and noise reduction cannot be achieved.

Therefore, a new rubber gasket is required to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at solve among the prior art sealed the pad need slot to the cylinder body when using, and the installation effectiveness low with unable vibration isolation noise reduction's problem.

According to one aspect of the utility model, a plunger type positioning rubber sealing gasket is provided, which comprises a rubber body, wherein the shape and the width of the rubber body are both consistent with the end surface of a cylinder body, a plurality of plungers are arranged on the upper surface and/or the lower surface of the rubber body, and the plungers and the rubber body are of an integrated structure; the upper surface and the lower surface of the rubber body are provided with two sealing ribs, and the two sealing ribs on the upper surface or the lower surface are respectively arranged at the positions, close to the edge, of the rubber body and are always spaced from the edge of the rubber body by a certain distance; the plunger is arranged in the middle of the two sealing ribs.

According to the scheme, the groove fixing sealing gasket is not required to be arranged on the cylinder body or the cylinder cover, only the fixing hole is required to be arranged at the corresponding position, the sealing gasket can be fixed by inserting the plunger into the fixing hole, and therefore the production cost is lower and the installation efficiency is higher; the width of the sealing gasket is consistent with the end face of the cylinder body, and after the cylinder body and the cylinder cover are installed, the sealing gasket is separated, a certain gap is formed, and vibration isolation and noise reduction can be effectively achieved.

Preferably, a sealing strip is arranged at least close to the top of the sealing rib at the inner edge of the rubber body, the width of the sealing strip is smaller than that of the sealing rib, and the height of the sealing strip is smaller than half of the height of the sealing rib.

Through this scheme, when compressing tightly the cylinder cap, at first compress tightly the sealing strip, the sealing strip is compared in sealed muscle more soft, consequently can laminate cylinder cap or cylinder body more to can reduce the terminal surface plane degree of cylinder body or cylinder cap, save process time and processing cost.

Preferably, a plurality of exhaust grooves are axially formed in the peripheral surface of the plunger, and the length of each exhaust groove is equal to the height of the plunger.

Through this scheme, the air in the fixed orifices can be followed the air discharge duct and discharged when the plunger is installed, easy to assemble.

Preferably, a sealing ring is arranged at the bottom end of the plunger and surrounds the plunger, and the height of the sealing ring is less than half of the height of the plunger.

Through this scheme, seal the fixed orifices on cylinder body or the cylinder cap.

Preferably, the face of the sealing ring facing the plunger is angled towards the plunger such that the sealing ring has a larger inner diameter towards the top.

Through this scheme, when being convenient for compress tightly, the sealing washer falls to unanimity, prevents it folding.

Preferably, the cross-sectional shape of the sealing rib is one or more of trapezoidal, semicircular, triangular and rectangular.

Preferably, the outer edge of the rubber body is provided with a plurality of positioning plates, and the positioning plates are perpendicular to the plane where the rubber body is located; the positioning plate and the rubber body are of an integrated structure.

Through this scheme, the sealed position of filling up is further guaranteed to the outer fringe of location integrated circuit board to cylinder body, prevents to shift.

Preferably, the number of the positioning plates is the same as that of the plungers, and the positioning plates are arranged on the outer edge of the rubber body closest to the plungers.

Through this scheme, the installation of the plunger of further being convenient for.

Preferably, the longitudinal section of the positioning plate is a trapezoid rotated by ninety degrees, the upper bottom of the trapezoid is connected to the edge of the rubber body, and the length of the upper bottom is equal to the thickness of the rubber body.

Through this scheme, the inboard of locating plate is the inclined plane, plays the guide effect, the installation of the sealed installation of filling up and the installation of cylinder cap of being convenient for.

Preferably, the thickness of the joint of the positioning plate and the rubber body is smaller than that of the rubber body.

Through this scheme, the back of finishing is installed in the installation of being convenient for, gets rid of the locating plate.

The utility model has the technical effects that no groove is required to be arranged on the end surface of the cylinder body or the cylinder cover, and no overhigh flatness is required, so that the processing cost and the processing time of the cylinder body or the cylinder cover are reduced; positioning with the plunger is more efficient than mounting into a recess; the middle of the cylinder body and the cylinder cover is separated by a sealing gasket, so that the transmission of vibration can be reduced, and the noise is reduced.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic top view of a rubber gasket according to a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view at D-D in fig. 1.

Fig. 3 is a schematic top view of a plunger in a rubber packing according to a second embodiment of the present invention.

Fig. 4 is a schematic sectional view of a plunger in a rubber gasket according to a second embodiment of the present invention.

Fig. 5 is a schematic front view of a rubber gasket according to a third embodiment of the present invention.

Fig. 6 is a schematic diagram of the structure at a in fig. 5.

Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

< example one >

As shown in fig. 1 and 2, the plunger-type positioning rubber gasket in the present embodiment includes a rubber body 1100, the shape and width of the rubber body 1100 are consistent with the end surface of the cylinder, a plurality of plungers 1200 are disposed on the upper surface and/or the lower surface of the rubber body 1100, and the plungers 1200 and the rubber body 1100 are of an integrated structure; the upper surface and the lower surface of the rubber body 1100 are both provided with two sealing ribs 1300, and the two sealing ribs 1300 on the upper surface or the lower surface are respectively arranged at the positions close to the edge of the rubber body 1100 and are always spaced from the edge of the rubber body 1100 by a certain distance; the plunger 1200 is disposed in the middle of the two sealing ribs 1300.

According to the scheme of the embodiment, a groove fixing sealing gasket is not required to be arranged on the cylinder body or the cylinder cover, only the fixing hole is required to be arranged at the corresponding position, compared with the groove, the processing cost is saved, the diameter of the fixing hole is consistent with that of the plunger 1200, the depth of the fixing hole is not smaller than that of the plunger 1200, the sealing gasket can be fixed by inserting the plunger 1200 into the fixing hole, and therefore the production cost of the cylinder body or the cylinder cover is lower, and the installation efficiency is higher; the width of the sealing gasket is consistent with the end face of the cylinder body, and after the cylinder body and the cylinder cover are installed, the sealing gasket is separated, a certain gap is formed, and vibration isolation and noise reduction can be effectively achieved. This sealed muscle 1300 encircles the cavity and the periphery setting of cylinder body respectively to be located plunger 1200 both sides, can enough strengthen sealed effect, can make sealed the pad atress balanced again, the perk when preventing to compress tightly.

In this or other embodiments, the cross-sectional shape of the sealing rib 1300 may be one or more of trapezoidal, semicircular, triangular, and rectangular. That is, the shape of the beads 1300 may or may not be uniform on the same gasket. In this embodiment, the sealing ribs 1300 adjacent to the cavity are wider and better sealed.

In this embodiment or other embodiments, a sealing strip 1310 is disposed at least near the top of the sealing rib 1300 at the inner edge of the rubber body 1100, the width of the sealing strip 1310 is smaller than the width of the sealing rib 1300, and the height of the sealing strip 1310 is smaller than half of the height of the sealing rib 1300. So that the sealing strip 1310 is not too high or too wide, and the flexibility is ensured. When compressing tightly the cylinder cap, at first compress tightly sealing strip 1310, sealing strip 1310 is softer than in sealed muscle 1300, consequently can laminate cylinder cap or cylinder body more to can reduce the terminal surface plane degree of cylinder body or cylinder cap, save process time and processing cost.

< example two >

As shown in fig. 3 and 4, in the technical solution of the present embodiment, in addition to the above embodiment, a plurality of air discharge grooves 1210 are axially formed on the circumferential surface of the plunger 1200, and the length of the air discharge grooves 1210 is equal to the height of the plunger 1200. When the plunger 1200 is installed, air in the fixing hole can be discharged along the exhaust groove 1210, so that the installation is convenient, and the phenomenon that the air in the fixing hole is reserved to cause the installation not in place is prevented.

In this embodiment or other embodiments, a sealing ring 1220 is disposed at the bottom end of the plunger 1200 and surrounds the plunger 1200, and the height of the sealing ring 1220 is less than half of the height of the plunger 1200, so as to seal a fixing hole in a cylinder body or a cylinder cover and prevent oil stains on the end surface from entering the fixing hole.

In this or other embodiments, a surface of the sealing ring 1220 facing the plunger 1200 is angled with respect to the plunger 1200 such that the sealing ring 1220 has a larger inner diameter closer to the top. When the pressing is convenient, the sealing ring 1220 is reversed to be consistent, and the folding is prevented. The sealing gasket is also favorable for compaction, and the sealing gasket is prevented from bulging due to overlarge top thickness.

< example three >

As shown in fig. 5 and fig. 6, in the rubber gasket of the present embodiment, on the basis of the first embodiment or the second embodiment, a plurality of positioning plates 1400 are disposed at the outer edge of the rubber body 1100, and the positioning plates 1400 are perpendicular to the plane where the rubber body 1100 is located; the positioning plate 1400 and the rubber body 1400 are of an integrated structure. During installation, the locating plate 1400 clamps to the outer fringe of cylinder body, further guarantees the position of sealed pad, prevents to shift. After the installation, the positioning plate 1400 is removed. The locating plate has a height and width that are evenly disposed around the edge of the rubber body 1100.

In other embodiments, the positioning plate 1400 is a ring-shaped structure and is disposed completely around the rubber body 1100.

In this embodiment or other embodiments, the number of the positioning plates 1400 is the same as that of the plungers 1200, and the positioning plates 1400 are disposed on the outer edge of the rubber body 1100 closest to the plungers 1200. Each plunger 1200 all corresponds a locating plate 1400, and locating plate 1400 location during the installation to the cylinder body edge, the installation of the plunger 1200 of being convenient for prevents to prolong installation time because of the sight is not good, and the installation of the plunger 1200 of further being convenient for improves the installation effectiveness.

In this embodiment or other embodiments, the longitudinal section of the positioning plate 1400 is a trapezoid rotated by ninety degrees, the upper bottom of the trapezoid is connected to the edge of the rubber body 1100, and the length of the upper bottom is equal to the thickness of the rubber body 1100. This setting makes the inboard of locating plate 1400 be the inclined plane, all plays the guide effect to the installation of sealed pad and the installation of cylinder cap, can improve the installation effectiveness.

In this embodiment or other embodiments, the thickness of the connection 1410 between the positioning plate 1400 and the rubber body 1100 is smaller than the thickness of the rubber body 1100. After the installation is finished, the positioning plate 1400 is removed, and the positioning plate can be cut by a blade or directly torn off by hand.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. The plunger type positioning rubber sealing gasket is characterized by comprising a rubber body, wherein the shape and the width of the rubber body are consistent with those of the end face of a cylinder body, a plurality of plungers are arranged on the upper surface and/or the lower surface of the rubber body, and the plungers and the rubber body are of an integrated structure; the upper surface and the lower surface of the rubber body are provided with two sealing ribs, and the two sealing ribs on the upper surface or the lower surface are respectively arranged at the positions, close to the edge, of the rubber body and are always spaced from the edge of the rubber body by a certain distance; the plunger is arranged in the middle of the two sealing ribs.

2. The rubber sealing gasket of claim 1, wherein a sealing strip is arranged at least near the top of the sealing rib at the inner edge of the rubber body, the width of the sealing strip is smaller than the width of the sealing rib, and the height of the sealing strip is smaller than half of the height of the sealing rib.

3. The rubber gasket of claim 1, wherein the plunger has a plurality of vent grooves formed in an axial direction on a peripheral surface thereof, and a length of the vent grooves is equal to a height of the plunger.

4. The rubber gasket of claim 3, wherein a gasket is disposed around said plunger at a bottom end of said plunger, said gasket having a height less than one-half of a height of said plunger.

5. A rubber seal according to claim 4, wherein the face of the sealing ring facing the plunger is angled towards the plunger such that the sealing ring has a larger inner diameter towards the top.

6. The rubber gasket of claim 2, wherein the cross-sectional shape of the bead is one or more of trapezoidal, semicircular, triangular, and rectangular.

7. The rubber gasket of claim 1, wherein the rubber body is provided at its outer edge with a plurality of positioning plates perpendicular to the plane of the rubber body; the positioning plate and the rubber body are of an integrated structure.

8. The rubber gasket of claim 7, wherein the number of said positioning plates is the same as the number of said plungers, said positioning plates being disposed on the outer edge of said rubber body nearest said plungers.

9. The rubber gasket of claim 8, wherein the positioning plate has a longitudinal section in the shape of a trapezoid rotated ninety degrees, an upper base of the trapezoid being connected to an edge of the rubber body, the upper base having a length equal to a thickness of the rubber body.

10. The rubber gasket of claim 9, wherein the thickness of the location plate at the connection with the rubber body is less than the thickness of the rubber body.

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