CN216478905U - Special-shaped sealing gasket for gas pipeline flowmeter - Google Patents
Special-shaped sealing gasket for gas pipeline flowmeter Download PDFInfo
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- CN216478905U CN216478905U CN202123025096.1U CN202123025096U CN216478905U CN 216478905 U CN216478905 U CN 216478905U CN 202123025096 U CN202123025096 U CN 202123025096U CN 216478905 U CN216478905 U CN 216478905U
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Abstract
The utility model provides a gas pipeline is sealed pad with abnormal shape for flowmeter belongs to the gas pipeline sealing technique field, including sealed main part and dig the heart structure, sealed main part is used for gap between gland and the seat hole, and sealed main part upper end has the inclined plane, and when gland and seat hole assembly extreme condition were down, the gland can with the inclined plane contact laminating, dig the heart structure and locate the inboard middle part of sealed main part for the pressure that sealed main part upper portion acted on sealed main part lower part prevents that sealed main part from receiving the damage. The utility model provides a pair of gas pipeline is sealed pad with abnormal shape for flowmeter has solved the installation back of current sealed pad, and sealing performance is not good between gland and the seat hole under the assembly extreme condition, and the easy technical problem who leaks of coal gas has and sealing performance is good between gland and the seat hole under the assembly extreme condition, and coal gas is difficult for leaking, guarantees sealed effect, prevents to seal up the technological effect that receives the damage.
Description
Technical Field
The utility model belongs to the technical field of the gas piping is sealed, more specifically say, relate to a gas piping is heterotypic sealed pad for flowmeter.
Background
The gas pipeline flowmeter, also called as gas flowmeter, is a flow meter for measuring various gas flows by adopting the traditional differential pressure type flowmeter principle. The ideal assembly state after the gas pipeline flowmeter and the gas pipeline are assembled and connected is as follows: the pressure cover on the flowmeter and the seat hole on the gas pipeline are in a mutually parallel state, the sealing gasket is arranged between the pressure cover and the seat hole and is compressed, and the sealing gasket plays a role in preventing gas inside the gas pipeline from leaking between the pressure cover and the seat hole and improving the sealing performance. However, in actual assembly, complete parallelism cannot be achieved, but rather a relative angle exists, i.e., the gland plane and the seat bore plane are at an angle, and the extreme angle is 3 ° as shown in fig. 4-5. When the gas leakage sealing device is in the limit state of assembling the gland and the seat hole, the sealing performance of the existing sealing gasket is poor, so that gaps between the gland and the seat hole are different in size, and gas is easy to leak from the larger gaps.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas piping flow instrument is with heterotypic sealed pad aims at solving the current sealed installation back of filling up, and sealing performance is not good between gland and the seat hole under the assembly limit state, the easy technical problem who leaks of coal gas.
In order to achieve the above object, the utility model adopts the following technical scheme: the special-shaped sealing gasket for the gas pipeline flowmeter comprises a sealing main body and a core digging structure, wherein the sealing main body is arranged between a gland and a seat hole and is used for sealing a gap between the gland and the seat hole; the core digging structure is arranged in the middle of the inner side of the sealing main body to form a groove body excavated along the inner side edge of the sealing main body, and when the gland and the seat hole are assembled in a limit state, the core digging structure is used for buffering the pressure acting on the lower part of the sealing main body at the upper part of the sealing main body to prevent the sealing main body from being damaged.
In a possible implementation manner, the core-digging structure is an arc-shaped groove body dug in a concave shape towards the inner direction of the sealing main body.
In a possible implementation manner, the sealing main body comprises a base body, a cushion block and a cover body, wherein a groove is formed in the upper end of the base body; the cushion block is filled in the groove at the upper end of the base body, the upper end of the cushion block extends out of the upper end of the base body, and the shape of the cushion block is matched with that of the groove of the base body; the cover body cover is buckled at the upper end of the cushion block, the lower end face of the cover body is abutted and contacted with the upper end face of the base body, the upper end face of the cover body sequentially comprises a plane section and an inclined plane section from inside to outside, the plane section and the inclined plane section are both suitable for being contacted with a gland sealing face, and the inclined plane section is suitable for being attached to the gland sealing face when the gland is assembled with the seat hole in a limit state.
In a possible implementation manner, a gap is formed between the middle part of the lower end of the cover body and the upper end of the cushion block, the sealing main body further comprises a plurality of springs which are arranged in the gap and arranged at the upper end of the cushion block, the cover body covers the upper ends of the springs, and the springs are suitable for elastically pushing the cover body to move towards the gland direction, so that the upper end face of the cover body is in sealing contact with the gland sealing surface.
In a possible implementation manner, the core-digging structure is formed on the inner side surface of the base body, a concave portion matched with the core-digging structure is arranged on the inner side surface of the cushion block, and the cushion block can be deformed and restored after being elastically deformed and placed in the base body groove when being filled in the base body groove.
In one possible implementation, the upper end face of the base body and the lower end face of the cover body are adhesively connected by an adhesive.
In one possible implementation, the length of the ramp section is not less than the height of the cover.
In a possible realization, the included angle between the plane of the inclined surface section and the horizontal plane is 20-40 degrees.
In a possible implementation manner, a cushion layer is covered and buckled on the upper end of the cushion block, the bottom ends of the springs are fixedly connected to the cushion layer, and the cushion layer presses the cushion block downwards.
In a possible implementation manner, the sealing body is made of rubber.
The utility model provides a pair of gas pipeline flow meter is with sealed pad of abnormal shape beneficial effect lies in: compared with the prior art, the utility model relates to a gas pipeline is sealed with heterotypic pad for flowmeter includes sealed main part and digs heart structure, sealed main part is used for gap between gland and the seat hole, sealed main part upper end has the inclined plane, when gland and seat hole assembly extreme condition down, the gland can with the laminating of inclined plane contact, it locates the inboard middle part of sealed main part to dig heart structure, a pressure for buffering sealed main part upper portion acts on sealed main part lower part, prevent that sealed main part from receiving the damage, the installation back of current sealed pad has been solved, sealing performance is not good between gland and the seat hole under the assembly extreme condition, the easy technical problem who leaks of coal gas, it is good to have sealing performance between gland and the seat hole under the assembly extreme condition, coal gas is difficult for leaking, guarantee sealed effect, prevent that sealed pad from receiving the technological effect of damage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a front view of a structure of a special-shaped sealing gasket for a gas pipeline flowmeter according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a special-shaped sealing gasket for a gas pipeline flowmeter, which is provided by the embodiment of the present invention, after being compressed in a normal use state;
fig. 3 is a schematic structural view of a special-shaped sealing gasket for a gas pipeline flowmeter, which is provided by the embodiment of the present invention, after being compressed in an assembly limit state;
FIG. 4 is a schematic view of a prior art gasket compressed during normal use;
fig. 5 is a schematic structural view of a prior art gasket compressed at the limit of assembly (the left side of the gasket shows that the gasket is easily crushed and damaged, and the right side shows that a gap is formed and gas leakage is easily caused);
fig. 6 is a front view of a special-shaped sealing gasket for a gas pipeline flowmeter according to another embodiment of the present invention;
fig. 7 is an exploded view of the profiled gasket structure of fig. 6.
Description of reference numerals:
1. a sealing body; 2. a core digging structure; 3. a bevel; 4. a substrate; 5. cushion blocks; 51. a recessed portion; 6. a cover body; 61. a planar section; 62. a slope section; 7. a groove; 8. a spring; 9. and (5) cushion coating.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 3 and fig. 6 to 7 together, a description will now be given of a special-shaped gasket for a gas pipeline flowmeter according to the present invention. The special-shaped sealing gasket for the gas pipeline flowmeter comprises a sealing main body 1 and a core digging structure 2, wherein the sealing main body 1 is arranged between a gland and a seat hole and is used for sealing a gap between the gland and the seat hole, an inclined plane 3 is arranged at the position, close to the outer side, of the upper end of the sealing main body 1, and a sealing surface of the gland can be in contact fit with the inclined plane 3 when the gland and the seat hole are in an assembly limit state; the core digging structure 2 is arranged in the middle of the inner side of the sealing main body 1 to form a groove body excavated along the inner side edge of the sealing main body 1, and when the gland and the seat hole are assembled in a limit state, the core digging structure 2 is used for buffering the pressure acting on the lower part of the sealing main body 1 on the upper part of the sealing main body 1 to prevent the sealing main body 1 from being damaged.
The utility model provides a special-shaped sealing gasket for gas pipeline flowmeter, compared with the prior art, the utility model discloses a special-shaped sealing gasket for gas pipeline flowmeter comprises a sealing main body 1 and a core-digging structure 2, the sealing main body 1 is used for sealing the gap between a gland and a seat hole, the upper end of the sealing main body 1 is provided with an inclined plane 3, when the gland is assembled with the seat hole under the limit state, the gland can contact and laminate with the inclined plane 3, the core-digging structure 2 is arranged at the middle part of the inner side of the sealing main body 1 and is used for buffering the pressure acting on the lower part of the sealing main body 1 at the upper part of the sealing main body 1 to prevent the sealing main body 1 from being damaged, the technical problems that the sealing performance between the gland and the seat hole is poor under the assembly limit state and the gas is easy to leak are solved, the sealing performance between the gland and the seat hole under the assembly limit state is good, the gas is not easy to leak, the sealing effect is ensured, the technical effect of preventing the sealing gasket from being damaged is achieved.
The sealing main body 1 is used for sealing a gap or a gap between the gland and the seat hole, so that the sealing effect can be improved, particularly, the sealing performance cannot be lost when the gland is assembled with the seat hole in a limit state, the sealing effect is ensured, and the gas leakage is prevented.
In order to ensure that the sealing body 1 can seal the gap between the gland and the seat hole while being pressurized, and improve the sealing performance, in some embodiments, please refer to fig. 1 to 3 and fig. 6 to 7, the core-digging structure 2 is an arc-shaped groove body dug in a concave shape towards the inner direction of the sealing body 1. The sealing main body 1 is a sealing ring or a sealing gasket, and the sealing gasket in the prior art is improved to be a non-standard part, so the sealing gasket is called as a special-shaped sealing gasket, the core digging structure 2 is a circle of arc-shaped groove body arranged on the inner side surface of the sealing main body 1, and the core digging structure has the function that after the upper part of the sealing main body 1 bears pressure, the upper pressure has a structure capable of buffering the lower pressure, the structure is the core digging structure 2, meanwhile, the upper pressure cannot be very large for the lower pressure, and the sealing main body 1 is prevented from being damaged.
Usually, the sealing body 1 is circular or can be called a sealing ring, and the core 2 is also circular because it is arranged along the inner circumference of the sealing body 1. In actual assembly, the sealing body 1 is coaxial or concentric with the hole inside the seat hole, so that gas can flow through or pass through the sealing body.
In order to improve the sealing performance of the sealing body 1 and enhance the sealing effect, in some embodiments, referring to fig. 1 to 3 and fig. 6 to 7, the sealing body 1 includes a base 4, a pad 5 and a cover 6, and a groove 7 is formed at an upper end of the base 4; the cushion block 5 is filled in the groove 7 at the upper end of the base body 4, the upper end of the cushion block 5 extends out of the upper end of the base body 4, and the shape of the cushion block 5 is matched with the shape of the groove 7 of the base body 4; the cover body 6 is covered and buckled at the upper end of the cushion block 5, the lower end face of the cover body is abutted and contacted with the upper end face of the base body 4, the upper end face of the cover body 6 sequentially comprises a plane section 61 and an inclined plane section 62 from inside to outside, the plane section 61 and the inclined plane section 62 are suitable for being contacted with a gland sealing face, and the inclined plane section 62 is suitable for being attached to the gland sealing face when the gland is assembled with the seat hole in a limiting state. The embodiment can be an implementation mode of the sealing main body 1 or another structure, the structures of the two sealing main bodies 1 can play a sealing role, the sealing effect is consistent, the lower end of the base body 4 is contacted with the upper end face of the seat hole, the upper end of the cover body 6 is contacted with the lower end face of the gland, the contact stability among the base body 4, the cushion block 5 and the cover body 6 is good, the sealing effect is good, and the three can be mutually detached.
Specifically, the base 4, the cushion block 5 and the cover body 6 are all made of rubber materials. The plane section 61 and the inclined plane section 62 at the upper end of the cover body 6 can contact with the gland, the sealing effect can be ensured in the assembly limit state, and the technical problems that the sealing effect of the sealing gasket is weakened in the assembly limit state and coal gas is easy to leak in the prior art are solved.
The base body 4, the cushion block 5 and the cover body 6 are easy to manufacture and process, the combination and installation of the base body, the cushion block 5 and the cover body are very convenient, the sealing main body 1 is formed after combination, and a good sealing effect can be achieved. The flat section 61 on the cover 6 is in the horizontal plane and the inclined section 62 is inclined towards the lower part of the sealing body 1, or may be regarded as a kind of "chamfer" structure of the sealing body 1, and the "chamfer" structure can play a good sealing effect in the limit state of assembly.
In order to realize that the cover body 6 can elastically change within a small range and increase the contact pressure between the cover body 6 and the gland, in some embodiments, please refer to fig. 1 to 3 and fig. 6 to 7, a gap is formed between the middle of the lower end of the cover body 6 and the upper end of the cushion block 5, the seal main body 1 further includes a plurality of springs 8 disposed in the gap and disposed at the upper end of the cushion block 5, the cover body 6 is covered and buckled at the upper ends of the springs 8, and the springs 8 are adapted to elastically push the cover body 6 to move towards the gland, so that the upper end face of the cover body 6 is in sealing contact with the gland sealing face. A plurality of springs 8 set up along the up end of cushion 5, because the up end of cushion 5 is irregular shape, then a plurality of springs 8 also arrange into irregular shape, can push up the cover body 6 simultaneously, make the sealed face that the cover body 6 up end (plane section 61 and/or inclined plane section 62) can the abundant contact gland to play fine sealed effect.
The lower extreme fixed connection of a plurality of springs 8 is on cushion 5, and after spring 8 was compressed, 8 elasticity ejection cushion 5 of spring, elasticity can not prick into inside cushion 5 moreover to the assurance has certain elasticity.
In order to ensure that the core structure 2 can play a certain role, in some embodiments, referring to fig. 1 to 3 and fig. 6 to 7, the core structure 2 is formed on the inner side surface of the substrate 4, the inner side surface of the spacer 5 is provided with a recess 51 adapted to the core structure 2, and the spacer 5 can be elastically deformed in the groove 7 of the filling substrate 4 and can be deformed and restored to the original shape after being placed in the groove 7 of the substrate 4. Cushion 5 itself also has certain elasticity, can compression deformation and can insert to the recess 7 in, and the joint effect of cushion 5 and base member 4 is better, and cushion 5 can not deviate from in the recess 7 easily. In fig. 7, a slightly curved structure is also provided at the lower right part of the cover 6, which curved structure, in the form of an arc-shaped extension of the core structure 2 on the base 4, jointly form the integral core structure 2.
The arc of digging core structure 2, or half-circular arc, also can be the rectangle, in a word can play corresponding effect can, the concrete shape of the core structure 2 of aligning does not do the restriction the utility model discloses in. Generally, the material of the spacer 5 has a hardness greater than the hardness of the materials of the base 4 and the cover 6, and the spacer 5 can provide a good support function. The base 4, the cushion block 5 and the cover 6 are all irregular in shape and can be seen as a special-shaped piece.
In order to stabilize the connection between the cover 6 and the base 4, the cover 6 may be in a compressed state during the sealing action of the sealing body 1, and in some embodiments, referring to fig. 1 to 3 and fig. 6 to 7, the upper end surface of the base 4 and the lower end surface of the cover 6 are adhesively connected by an adhesive. In addition, other connection modes can be used for connection, and the specific connection mode is not limited in the present invention.
In order to ensure that the inclined section 62 on the cover 6 can abut or tightly abut against the sealing surface of the gland in the extreme state of the assembly of the gland and the seat hole, in some embodiments, referring to fig. 1 to 3 and 6 to 7, the length of the inclined section 62 is not less than the height of the cover 6. In the limit state, the slope section 62 can be tightly attached to the gland, and the sealing surface of the gland is the lower end surface thereof and is the end surface for sealing.
In the extreme state of the gland being assembled with the seat bore, the extreme state is 3 °, and in order to adapt the cover body 6 to be able to sufficiently contact the gland sealing surface without losing the sealing effect, in some embodiments, referring to fig. 1 to 3 and 6 to 7, the angle between the plane of the inclined surface section 62 and the horizontal plane is 20 to 40 °, preferably 27 °.
In order to prevent the springs 8 from penetrating into the cushion 5 during the compression process (because the cushion 5 is made of rubber, such a possibility exists), in some embodiments, referring to fig. 1 to 3 and fig. 6 to 7, the cushion 9 covers the upper end of the cushion 5, the bottom ends of the plurality of springs 8 are all fixedly connected to the cushion 9, and the cushion 9 presses the cushion 5 downward. The shape of the upper end of the cushion block 5 is matched with that of the cushion layer 9, and the upper end of the cushion block 5, which is covered and buckled by the cushion layer 9, is fixedly connected with the plurality of springs 8, so that the springs 8 can be conveniently installed. Also can regard as bed course 9 and a plurality of spring 8 to be the integral type, when needs installation spring 8, can accomplish the installation with the direct cover of bed course 9 knot on cushion 5, installation and connection labour saving and time saving. The pressure on the gland is transmitted to the cover body 6, the middle part of the lower end of the cover body 6 is abutted against the upper ends of the springs 8, the acting force on the cover body 6 is transmitted to the cushion block 5 through the springs 8 in the middle part or the end part of the cover body 6, the cushion block 5 is transmitted to the base body 4, and the contact strength of the base body 4 and the seat hole is increased.
Specifically, the cushion layer 9 can also be made of a rubber material, so that the springs 8 and the cushion block 5 can be conveniently installed and connected, and the connection stability is good.
In some embodiments, referring to fig. 1 to 3 and fig. 6 to 7, the sealing body 1 is made of rubber, and may be made of other materials that are required to be gas-resistant, natural gas-resistant, durable, corrosion-resistant, and the like.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A gas pipeline is sealed with heterotypic sealed pad for flowmeter, its characterized in that includes:
the sealing body is arranged between the gland and the seat hole and is used for sealing a gap between the gland and the seat hole, the upper end of the sealing body close to the outer side is provided with an inclined plane, and a sealing surface of the gland can be contacted and attached with the inclined plane in the limit state of assembly of the gland and the seat hole; and
the center digging structure is arranged in the middle of the inner side of the sealing main body to form a groove body excavated along the inner side edge of the sealing main body, and when the gland and the seat hole are assembled in a limit state, the center digging structure is used for buffering the pressure of the upper part of the sealing main body acting on the lower part of the sealing main body to prevent the sealing main body from being damaged.
2. The special-shaped sealing gasket for the gas pipeline flow meter as claimed in claim 1, wherein the core-digging structure is an arc-shaped groove body dug in a concave shape towards the inner direction of the sealing main body.
3. The special-shaped sealing gasket for a gas pipeline flowmeter as claimed in claim 1, wherein the sealing body comprises:
the upper end of the base body is provided with a groove;
the cushion block is filled in the groove at the upper end of the base body, the upper end of the cushion block extends out of the upper end of the base body, and the shape of the cushion block is matched with that of the groove of the base body; and
the cover body, the cover is detained cushion upper end, and lower terminal surface with the base member up end supports to lean on the contact, the cover body up end includes plane section and inclined plane section from inside to outside in proper order, the plane section with the inclined plane section all is suitable for the sealed face of contact gland, and when gland and seat hole assembly extreme condition, the inclined plane section is suitable for the sealed face of laminating gland.
4. The special-shaped sealing gasket for the gas pipeline flowmeter as recited in claim 3, wherein a gap is formed between the middle of the lower end of the cover body and the upper end of the cushion block, the sealing body further comprises a plurality of springs arranged in the gap and at the upper end of the cushion block, the cover body is covered and buckled at the upper ends of the plurality of springs, and the plurality of springs are all suitable for elastically pushing the cover body to move towards the gland so that the upper end face of the cover body is in sealing contact with the gland sealing face.
5. The special-shaped sealing gasket for the gas pipeline flowmeter as claimed in claim 3, wherein the core-hollowed structure is formed on the inner side surface of the base body, a concave part matched with the core-hollowed structure is arranged on the inner side surface of the cushion block, and the cushion block can be deformed and restored after being elastically deformed and placed in the groove of the base body after being filled in the groove of the base body.
6. The special-shaped sealing gasket for the gas pipeline flowmeter as claimed in claim 3, wherein the upper end face of the base body and the lower end face of the cover body are bonded and connected through an adhesive.
7. The special-shaped sealing gasket for the gas pipeline flow meter as claimed in claim 3, wherein the length of the inclined surface section is not less than the height of the cover body.
8. The special-shaped sealing gasket for the gas pipeline flow meter as claimed in claim 3, wherein the included angle between the plane of the inclined surface section and the horizontal plane is 20-40 degrees.
9. The special-shaped sealing gasket for the gas pipeline flow meter as claimed in claim 4, wherein a cushion layer is covered and buckled on the upper end of the cushion block, the bottom ends of the plurality of springs are fixedly connected to the cushion layer, and the cushion layer presses down the cushion block.
10. The special-shaped sealing gasket for the gas pipeline flowmeter as recited in claim 1, wherein the sealing body is made of rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123025096.1U CN216478905U (en) | 2021-12-03 | 2021-12-03 | Special-shaped sealing gasket for gas pipeline flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123025096.1U CN216478905U (en) | 2021-12-03 | 2021-12-03 | Special-shaped sealing gasket for gas pipeline flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478905U true CN216478905U (en) | 2022-05-10 |
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ID=81419007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123025096.1U Active CN216478905U (en) | 2021-12-03 | 2021-12-03 | Special-shaped sealing gasket for gas pipeline flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478905U (en) |
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2021
- 2021-12-03 CN CN202123025096.1U patent/CN216478905U/en active Active
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