Matched sealing structure

Abstract

The utility model relates to the technical field of sealing, in particular to a matched sealing structure which comprises a flange plate, a connecting plate, a connecting bolt and a sealing assembly, the connecting plate is connected with the flange plate through the connecting bolt, and the sealing assembly comprises a matched seat, a connecting seat, a first sealing ring, a second sealing ring, a connecting component and a limiting component. The connecting base is fixedly connected with the connecting disc and located on the side, close to the matching base, of the connecting disc, the first sealing ring is arranged on the inner wall of the connecting base, the second sealing ring is arranged on the outer wall of the connecting base, the connecting component is installed on the connecting disc, and the limiting component limits the flange disc and the connecting disc. The problems that in the prior art, under the high-pressure environment, sealing force is prone to being reduced, sealing pieces are prone to being loosened, sealing is not tight, and sealing performance is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing technical field especially relates to a cooperation sealing structure. BACKGROUND

[0002] The conveying pipeline and storage container of fluid medium such as gas or liquid often need to be sealed and connected by connector. The detachable flange sealing connection is widely used in the sealing connection of pipeline and container in chemical industry, energy and machinery field because of simple structure and easy operation. The traditional flange connection mode adopts fastening bolt to connect two ports to be connected by flange. The sealing element is arranged on the sealing surface of flange port. The fastening bolt connects two end surfaces together, and also tightly presses the sealing element on the sealing surface along the flange axial direction.

[0003] The prior art CN206190754U discloses a kind of oil seal cooperation sealing structure, including rotating shaft, with the oil seal seat of rotating shaft, oil seal is equipped between oil seal seat and rotating shaft, oil seal is fixedly connected with oil seal seat, it is characterized in that further include fixedly installed in the spacer sleeve of rotating shaft, spacer sleeve is annular, its inner wall surface and the outer wall surface of rotating shaft seal cooperation, the outer wall surface of spacer sleeve and the lip of oil seal contact connection.The oil seal and spacer sleeve in the utility model are replaceable parts, the structure can avoid rotating shaft wear, so that the service life and reliability can be improved.

[0004] For the sealing connection device described above, under high pressure, the sealing force is easily reduced, and the sealing element is easily relaxed, which leads to poor sealing and affects the sealing performance. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of cooperation sealing structure, solve the problem that the prior art is caused due to in high pressure environment, the phenomenon of sealing tightness drop, sealing element relaxation, leading to poor sealing, affect the sealing performance.

[0006] To achieve the above object, the utility model provides a kind of cooperation sealing structure, including flange, connecting disc, connecting bolt and sealing assembly, the connecting disc is connected with the flange by the connecting bolt, the sealing assembly includes cooperation seat, connecting seat, first sealing ring, second sealing ring, connecting member and limiting member, the cooperation seat is fixedly connected with the flange, and located in one side of the flange, the connecting seat is fixedly connected with the connecting disc, and located in one side of the connecting disc close to the cooperation seat, the first sealing ring is arranged on the inner wall of the connecting seat, the second sealing ring is arranged on the outer wall of the connecting seat, the connecting member is installed on the connecting disc, and the limiting member limits the flange and the connecting disc.

[0007] The matching seat has a matching groove, and the matching groove is located on the side of the matching seat close to the connecting seat.

[0008] The connecting member comprises a connecting head, a third sealing ring and a chuck, the connecting head is fixedly connected with the connecting disc and located on the side of the connecting disc away from the connecting seat, the third sealing ring is arranged on the connecting head and located on the outer side of the connecting head, and the chuck is detachably connected with the connecting disc and located on the side of the connecting disc close to the connecting head.

[0009] The limiting member assembly comprises a limiting screw rod and a limiting nut, the limiting screw rod is fixedly connected with the flange plate and located on the side of the flange plate close to the connecting disc, and the limiting nut is sleeved on the outer side of the limiting screw rod and threadedly connected with the limiting screw rod.

[0010] The limiting member further comprises a locking nut, the locking nut is sleeved on the outer side of the limiting screw rod and threadedly connected with the limiting screw rod.

[0011] The utility model discloses a cooperation sealing structure, including flange plate, connecting disc, connecting bolt and sealing assembly, the connecting disc is connected with the flange plate through the connecting bolt, the sealing assembly includes matching seat, connecting seat, first sealing ring, second sealing ring, connecting member and limiting member, the matching seat is fixedly connected with the flange plate and is located on the side of the flange plate, the connecting seat is fixedly connected with the connecting disc and is located on the side of the connecting disc close to the matching seat, the first sealing ring is arranged on the inner wall of the connecting seat, the second sealing ring is arranged on the outer wall of the connecting seat, the connecting member is installed on the connecting disc, the limiting member is positioned to the flange plate and the connecting disc, has solved the phenomenon that the sealing tightness drops, the sealing piece relaxes due to under the high pressure environment in prior art, leads to the problem of the sealing not being strict, influences the problem of the sealing property. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description.

[0013] Figure 1 It is the whole structure schematic diagram of the cooperation sealing structure of the utility model.

[0014] Figure 2 It is the structure schematic diagram of the first sealing ring and the second sealing ring of the utility model.

[0015] Figure 3 It is the structure schematic diagram of the connecting member of the utility model.

[0016] In the figure: 101-flange, 102-connection disc, 103-connection bolt, 104-mating seat, 105-connection seat, 106-first sealing ring, 107-second sealing ring, 108-mating groove, 109-mating protrusion, 110-connection head, 111-third sealing ring, 112-chuck, 113-limiting screw, 114-limiting nut, 115-locking nut. DETAILED DESCRIPTION

[0017] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and cannot be understood as the limitation of the utility model.

[0018] The embodiments of the application are:

[0019] Please refer to Figures 1-3 , Figure 1 is the overall structure schematic view of the matching sealing structure of the utility model, Figure 2 is the structure schematic view of the first sealing ring 106 and the second sealing ring 107 of the utility model, Figure 3 is the structure schematic view of the connecting member of the utility model.

[0020] The matching sealing structure of the utility model, including flange 101, connection disc 102, connection bolt 103, mating seat 104, connection seat 105, first sealing ring 106, second sealing ring 107, mating groove 108, mating protrusion 109, connection head 110, third sealing ring 111, chuck 112, limiting screw 113, limiting nut 114, locking nut 115, solve the phenomenon of the prior art due to under high pressure environment, easily cause sealing tightness to drop, sealing relaxation, lead to sealing not strictly, influence the problem of sealing property.Can understand, the foregoing scheme can also be used to improve the problem of sealing property.

[0021] In the embodiment, the flange 101, the connection disc 102 and the connection bolt 103 are all prior art, by the sealing assembly, so that the sealing property under high pressure working condition can be improved, so that the phenomenon of the prior art due to under high pressure environment, easily cause sealing tightness to drop, sealing relaxation, lead to sealing not strictly, influence the problem of sealing property is solved.

[0022] The connecting seat 105 is fixedly connected with the connecting disc 102 and located on the side of the connecting disc 102 close to the matching seat 104, the first sealing ring 106 is arranged on the inner wall of the connecting seat 105, the second sealing ring 107 is arranged on the outer wall of the connecting seat 105, the connecting member is installed on the connecting disc 102, the limiting member limits the flange plate 101 and the connecting disc 102, the matching seat 104 and the connecting seat 105 are both circular rings, the matching seat 104 has a groove, when the flange disc and the connecting disc 102 are connected together, the connecting seat 105 can extend into the matching seat 104 through the groove, the number of the first sealing ring 106 and the second sealing ring 107 is both two, which are arranged on the inner wall and the outer wall of the connecting seat 105 respectively, after the connecting seat 105 extends into the matching seat 104, the first sealing ring 106 and the second sealing ring 107 are both in contact with the inner wall of the matching seat 104, and the gap between the matching seat 104 and the connecting seat 105 is filled, so that sealing is realized, the connecting member is installed on the connecting seat 105 and used for connecting a pipeline, the limiting member limits the connection of the flange plate 101 and the connecting disc 102, through the structure of annular double sealing, fluid or gas can be effectively prevented from leaking from the gap between the connecting seat 105 and the matching seat 104, so that the reliability of sealing under high-pressure working conditions is greatly improved, and the problems that sealing is not strict and the sealing performance is affected due to the phenomenon that sealing force is reduced and sealing members are relaxed under high-pressure environment in the prior art are solved.

[0023] Secondly, the matching groove 108 is located on the side of the matching seat 104 close to the connecting seat 105; the matching protrusion 109 is matched with the matching groove 108, the number of the matching groove 108 is multiple, and the matching groove 108 is arranged in an annular array at the port of the matching seat 104 facing the connecting seat 105, the number and position of the matching protrusion 109 are matched with the matching groove 108, through the cooperation of the matching protrusion 109 and the matching groove 108, the matching seat 104 and the connecting seat 105 can be accurately aligned.

[0024] Meanwhile, the connecting head 110 is fixedly connected with the connecting disc 102 and located on the side of the connecting disc 102 away from the connecting seat 105; the third sealing ring 111 is arranged on the connecting head 110 and located on the outer side of the connecting head 110; the chuck 112 is detachably connected with the connecting disc 102 and located on the side of the connecting disc 102 close to the connecting head 110, the connecting head 110 is used for connecting a pipeline, the pipeline can be sleeved on the connecting head 110, the number of the third sealing rings 111 is multiple, and the third sealing rings 111 are uniformly arranged along the length direction of the connecting head 110, after the pipeline is sleeved on the connecting head 110, the third sealing rings 111 are in contact with the inner wall of the pipeline, the chuck 112 is composed of two semicircular arc plates and connected with the connecting disc 102 through bolts, sleeved on the outer side of the connecting head 110 and used for fixing the pipeline, and the pipeline and the connecting disc 102 can be sealingly connected through the connecting member.

[0025] In addition, the limiting screw 113 is fixedly connected with the flange disc 101 and located on the side of the flange disc 101 close to the connecting disc 102; the limiting nut 114 is sleeved on the outer side of the limiting screw 113 and threadedly connected with the limiting screw 113, the number of the limiting screws 113 is multiple and uniformly arranged on the flange disc 101, the connecting disc 102 is provided with a through hole corresponding, the limiting screw 113 can penetrate through the connecting disc 102 through the through hole, the limiting nut 114 is sleeved on the end portion of the limiting screw 113, and the limiting nut 114 is in abutment with the connecting disc 102 by tightening the limiting nut 114, so that the connecting disc 102 can be limited and locked.

[0026] Finally, the locking nut 115 is sleeved on the outer side of the limiting screw 113 and threadedly connected with the limiting screw 113, the locking nut 115 is sleeved on the middle portion of the limiting screw 113, and the locking nut 115 is in abutment with the connecting disc 102 by loosening the locking nut 115, so that the reliability of locking can be further improved.

[0027] In the embodiment, the first sealing ring 106 and the second sealing ring 107 are respectively arranged on the inner and outer sides of the connecting seat 105, and after the connecting seat 105 is matched with the matching seat 104, the double sealing mode can effectively prevent fluid or gas from leaking from the gap between the connecting seat 105 and the matching seat 104. The matching groove 108 of the matching seat 104 and the matching protrusion 109 of the connecting seat 105 are matched with each other, not only increasing the contact area between the connecting seat 105 and the matching seat 104, but also making the connection of the two more closely and stably. When pressure or vibration is received, the structure can reduce the relative displacement of the connection part, thereby reducing the possibility of the sealing ring generating a gap due to displacement, further ensuring the durability and stability of the sealing effect, solving the phenomenon that the sealing tightness is easily reduced and the sealing part is relaxed in the prior art under high pressure, leading to the problem of loose sealing and affecting the sealing performance.

[0028] The above disclosure is only one or more preferred embodiments of the application, and cannot limit the scope of the application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope covered by the application.

Claims

1. A matching sealing structure, comprising a flange plate, a connecting plate and connecting bolts, the connecting plate being connected with the flange plate through the connecting bolts, characterized in that, a sealing assembly is further included; the sealing assembly comprises a matching seat, a connecting seat, a first sealing ring, a second sealing ring, a connecting member and a limiting member, the matching seat being fixedly connected with the flange plate and located on one side of the flange plate, the connecting seat being fixedly connected with the connecting plate and located on a side of the connecting plate close to the matching seat, the first sealing ring being arranged on an inner wall of the connecting seat, the second sealing ring being arranged on an outer wall of the connecting seat, the connecting member being installed on the connecting plate, and the limiting member limiting the flange plate and the connecting plate.

2. The matching sealing structure according to claim 1, characterized in that, the matching seat has a matching groove, and the matching groove is located on a side of the matching seat close to the connecting seat; and the connecting seat has a matching protrusion, and the matching protrusion is matched with the matching groove.

3. The matching sealing structure according to claim 1, characterized in that, the connecting member comprises a connecting head, a third sealing ring and a chuck, the connecting head being fixedly connected with the connecting plate and located on a side of the connecting plate away from the connecting seat, the third sealing ring being arranged on the connecting head and located on an outer side of the connecting head, and the chuck being detachably connected with the connecting plate and located on a side of the connecting plate close to the connecting head.

4. The matching sealing structure according to claim 1, characterized in that, the limiting member assembly comprises a limiting screw and a limiting nut, the limiting screw being fixedly connected with the flange plate and located on a side of the flange plate close to the connecting plate, and the limiting nut being sleeved on an outer side of the limiting screw and threadedly connected with the limiting screw.

5. The matching sealing structure according to claim 4, characterized in that, the limiting member further comprises a locking nut, and the locking nut is sleeved on an outer side of the limiting screw and threadedly connected with the limiting screw.

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