CN211441127U - Telescopic steel core air bag - Google Patents
Telescopic steel core air bag Download PDFInfo
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- CN211441127U CN211441127U CN201922330236.2U CN201922330236U CN211441127U CN 211441127 U CN211441127 U CN 211441127U CN 201922330236 U CN201922330236 U CN 201922330236U CN 211441127 U CN211441127 U CN 211441127U
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Abstract
The utility model discloses a telescopic steel core air bag, which belongs to the technical field of dies for producing and processing large-caliber rubber connectors and comprises an outer air bag with inner folded edges at two ends and a steel core supporting body which is sleeved in the outer air bag and is not in contact with the inner wall of the outer air bag, wherein the steel core supporting body comprises a first metal tube core, a second metal tube core and an elastic sealing element which is used for sealing and connecting the first metal tube core and the second metal tube core; the sealing cavity formed among the first metal tube core, the second metal tube core, the elastic sealing element and the outer layer air bag is a pressure-bearing cavity, the second metal tube core is provided with an inflating nozzle, and the inflating nozzle is assembled, disassembled and connected with a sealing cap. The utility model discloses a set up outer gasbag outside the steel core supporter to with steel core supporter design for extending structure, not only solve ordinary steel core gas leakage phenomenon, when vulcanizing heavy-calibre rubber joint, reduce the bearing pressure of equipment by a wide margin simultaneously, extension equipment life provides the factor of safety of equipment during operation.
Description
Technical Field
The utility model belongs to the technical field of mould is used in the production and processing of heavy-calibre rubber joint, concretely relates to production of heavy-calibre rubber joint is with scalable steel core.
Background
The large-caliber rubber joint is formed by combining a tubular rubber piece consisting of inner and outer peripheral rubber, a cord fabric and a steel wire ring, vulcanizing and molding the tubular rubber piece and then loosely combining the tubular rubber piece with a non-metal flange or a parallel joint.
At present, when a large-diameter rubber joint is vulcanized, a steel core die is used, but the existing die often has the phenomenon of steel core air leakage, so that the produced finished product is inconsistent in size and does not reach the standard, the qualified rate of the finished product is low, and the traditional steel core die has the defects of large pressure born by equipment and short service life of the equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a scalable steel core gasbag, this mould be through setting up outer gasbag outside the steel core supporter to with steel core supporter design for scalable structure, not only solve ordinary steel core gas leakage phenomenon, when vulcanizing heavy-calibre rubber joint, reduce the bearing pressure of equipment by a wide margin simultaneously, extension equipment life provides the factor of safety of equipment during operation.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the telescopic steel core air bag comprises an outer air bag with inner folded edges at two ends and a steel core supporting body which is sleeved in the outer air bag and is not in contact with the inner wall of the outer air bag, wherein the steel core supporting body comprises a first metal tube core in sealing connection with the folded edge at the first end of the outer air bag, a second metal tube core in sealing connection with the folded edge at the second end of the outer air bag and an elastic sealing element for sealing connection of the first metal tube core and the second metal tube core; and a sealing cavity formed among the first metal tube core, the second metal tube core, the elastic sealing element and the outer layer air bag is a pressure bearing cavity, an inflating nozzle for inflating and deflating the pressure bearing cavity is arranged on the first metal tube core and/or the second metal tube core, and the inflating nozzle is assembled and disassembled and connected with a sealing cap.
Furthermore, a first supporting steel disc is arranged at the first end of the first metal tube core and is in compression connection with the folded edge at the first end of the outer-layer air bag;
a second supporting steel disc is arranged at the first end of the second metal tube core and is in compression connection with the folded edge at the second end of the outer air bag; the second end of the first metal die is hermetically connected with the second end of the second metal die through an elastic sealing member.
Furthermore, a first connecting disc is arranged at the second end of the first metal tube core, a second connecting disc is arranged at the second end of the second metal tube core, and the first connecting disc and the second connecting disc are connected through a plurality of groups of limiting adjusting parts.
Furthermore, the limiting adjusting part is a bolt and nut group, and the bolt and nut group comprises a bolt, a jacking nut, a first limiting nut and a second limiting nut;
a first mounting hole for a bolt to pass through is formed in the first connecting disc; a second mounting hole for a bolt to pass through is formed in the position, corresponding to the first mounting hole, of the second connecting disc;
the bolt passes first mounting hole and second mounting hole, the tight nut in top is close to the stiff end of bolt and sticiss first connection pad, first stop nut is located the bolt between tight nut in top and the second connection pad, second stop nut is located the free end of bolt.
Furthermore, the elastic sealing element is a corrugated pipe, the longitudinal section of the corrugated pipe is of an omega-shaped structure, and the end face of the corrugated pipe, which protrudes outwards, faces the pressure bearing cavity; and two ends of the corrugated pipe are correspondingly connected with the first connecting disc and the second connecting disc through the first corrugated pipe connecting disc and the second corrugated pipe connecting disc respectively.
Furthermore, the first bellows connecting disc is in flange connection with the first connecting disc, and a first sealing gasket is arranged between the first bellows connecting disc and the first connecting disc; the second bellows connecting disc is connected with the second connecting disc through a flange, and a second sealing gasket is arranged between the second bellows connecting disc and the second connecting disc.
Furthermore, the limiting adjusting parts are four groups, the first mounting holes are four groups, and the second mounting holes are four groups.
Furthermore, the first metal tube core, the first supporting steel disc and the first connecting disc are of an integrated structure; the second metal tube core, the second supporting steel disc and the second connecting disc are of an integrated structure.
Furthermore, the inner walls of the folded edges at the two ends of the outer layer air bag are circumferentially provided with clamping grooves of necking structures, the first supporting steel disc and the second supporting steel disc are provided with bulges matched with the clamping grooves, and the cross sections of the clamping grooves are of omega-shaped structures.
Further, the hem inner wall at outer gasbag both ends has the globular arch of multiunit (101) along the circumference equipartition, be equipped with on first support steel disc and the second support steel disc relevant position department with the globular arch (101) adaptation and be used for holding the holding tank of globular arch (101).
Compared with the prior art, the utility model, the beneficial effects are that:
1. the utility model discloses a set up outer gasbag outside the steel core support body, and design the steel core support body as the extending structure who comprises first metal tube core, second metal tube core and elastic sealing element, the sealed cavity that forms between first metal tube core, second metal tube core, elastic sealing element and the outer gasbag is the pressure-bearing chamber, during the use, fill into right amount high-pressure gas from the charging connector to the pressure-bearing chamber, the deformation that the outer gasbag of adjustment searched for the extrusion to produce, it is outer gasbag to recover, in addition, the pressure-bearing chamber is pressed and is promoted first metal tube core and second metal tube core to extend to both ends, utilize the extension compression characteristic of elastic sealing element, first metal tube core and second metal tube core can freely stretch out and draw back in elasticity scope and allowed range, further adjust outer gasbag and produce the deformation because of the extrusion, cause the problem that the big bore rubber connector size that uses this mould to produce does not accord with, meanwhile, the sealing performance of the outer layer air bag is utilized, the air leakage phenomenon of the common steel core is solved, and meanwhile, when the large-caliber rubber joint is vulcanized, the bearing pressure of the equipment is greatly reduced, the service life of the equipment is prolonged, and the safety factor of the equipment during working is provided.
2. The utility model provides a first metal tube core, the second metal tube core passes through spacing regulating part to be connected, when filling high-pressure gas into the pressure-bearing intracavity, spacing regulating part plays the axial motion scope of first metal tube core of restriction and second metal tube core, the upper limit value of axial displacement volume takes place for first metal tube core and second metal tube core to the restriction, avoid the first metal tube core of trip and second metal tube core to take place excessive axial displacement, outer gasbag warp and becomes long, cause the unqualified phenomenon of finished product size with this mould production.
3. The utility model provides an elastic sealing element is the bellows, and the longitudinal section of bellows is "omega" type structure, and it is good to have better flexible extension performance, when filling high-pressure gas into the bearing chamber, can allow first metal tube core and second metal tube core to take place to remove to have self recovery performance.
4. A first sealing gasket is arranged between the first bellows connecting disc and the first connecting disc; and a second sealing gasket is arranged between the second corrugated pipe connecting disc and the second connecting disc, so that the integral sealing performance of the pressure-bearing cavity is ensured, and the phenomenon of waste products caused by air leakage of the steel core or air leakage of the outer air bag is avoided.
5. The utility model discloses the hem inner wall at outer gasbag both ends is equipped with the draw-in groove of throat structure along circumference, and the draw-in groove of throat structure can firmly wrap up the arch, not only has better sealed effect, can play certain positioning action moreover.
Drawings
Fig. 1 is a schematic partial sectional structural view of a first embodiment of the present invention;
FIG. 2 is a schematic view of a half-section structure of a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 4 is an enlarged view of A in FIG. 3;
fig. 5 is a schematic structural diagram of a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fourth embodiment of the present invention;
in the figure: the sealing structure comprises a first sealing gasket 01, a second sealing gasket 02, an outer-layer air bag 100, a spherical bulge 101, a steel core supporting body 200, a first metal pipe core 201, a second metal pipe core 202, an elastic sealing element 203, a first bellows connecting disc 2031, a second bellows connecting disc 2032, a first supporting steel disc 204, a second supporting steel disc 205, a first connecting disc 206, a second connecting disc 207, a bulge 208, a pressure-bearing cavity 300, an inflating nozzle 400, a limiting adjusting part 500, a bolt 501, a tightening nut 502, a first limiting nut 503 and a second limiting nut 504.
Detailed Description
For a better understanding of the present invention by those skilled in the art, the present invention will be further described with reference to the following detailed description:
as shown in fig. 1-2, the telescopic steel core airbag includes an outer airbag 100 having inner folds at both ends and a steel core support 200 sleeved in the outer airbag 100 and not in contact with the inner wall of the outer airbag 100, and the outer airbag 100 layer is a cylindrical structure made of rubber material.
The steel core support body 200 comprises a first metal pipe core 201 connected with the folded edge of the first end of the outer air bag 100 in a sealing mode, a second metal pipe core 202 connected with the folded edge of the second end of the outer air bag in a sealing mode, and an elastic sealing piece 203 connected with the first metal pipe core 201 and the second metal pipe core 202 in a sealing mode; the sealed cavity formed between the first metal tube core 201, the second metal tube core 202, the elastic sealing piece 203 and the outer layer air bag 100 is a pressure bearing cavity 300, an inflating nozzle 400 for inflating and deflating the pressure bearing cavity 300 is arranged on the first metal tube core 201 and/or the second metal tube core 202, and the inflating nozzle 400 is assembled and disassembled to be connected with a sealing cap. The inflation nozzle 400 of the present invention is disposed on the second metal tube core 202. When the air pressure bearing die is used, a proper amount of high-pressure air is filled into the inflating nozzle 400 (the requirement that the outer airbag is deformed due to extrusion and then recovers the required air pressure is met, and the outer airbag cannot be excessively deformed due to excessive air pressure), the pressure bearing cavity 300 is pressed to push the first metal tube core 201 and the second metal tube core 202 to extend towards two ends, the problem that the size of a large-caliber rubber joint produced by the die is inconsistent due to the deformation of the outer airbag 100 due to extrusion is solved by utilizing the extension and compression characteristics of the elastic sealing piece 203, the first metal tube core 201 and the second metal tube core 202 can freely extend and retract within the elastic range and the allowable range, meanwhile, the sealing performance of the outer airbag 100 is utilized to solve the problem of steel core air leakage (the existing technology can also be utilized, the air pressure information in the pressure bearing cavity is effectively controlled by being matched with a detection device for detecting the air pressure information in the pressure bearing, timely response measures).
In this embodiment, a first supporting steel disc 204 is disposed at a first end of the first metal pipe core 201, the first metal pipe core 201 and the first supporting steel disc 204 are of an integral structure, and the first supporting steel disc 204 is connected with the folded edge of the first end of the outer airbag 100 in a pressing manner. A second supporting steel disc 205 is arranged at the first end of the second metal pipe core 202, the second metal pipe core 202 and the second supporting steel disc 205 are of an integral structure, the second supporting steel disc 205 is connected with the folded edge of the second end of the outer-layer air bag 100 in a pressing mode, and the second end of the first metal pipe core 201 is connected with the second end of the second metal pipe core 202 in a sealing mode through an elastic sealing piece 203.
In this embodiment, a first connection pad 206 is disposed at a second end of the first metal die 201, the first metal die 201 and the first connection pad 206 are in an integrated structure, a second connection pad 207 is disposed at a second end of the second metal die 202, the second metal die 202 and the second connection pad 207 are in an integrated structure, the first connection pad 206 and the second connection pad 207 are connected through a plurality of sets of limiting adjustment portions 500, and preferably, the limiting adjustment portions 500 are four sets.
The limiting adjustment part 500 in this embodiment is a bolt and nut set, the bolt and nut set includes a bolt 501, a tightening nut 502, a first limiting nut 503 and a second limiting nut 504, the first connection plate 206 is provided with a first mounting hole for the bolt 501 to pass through, the first mounting holes are four groups, the second connection joint 207 is provided with a second mounting hole for the bolt 501 to pass through at a position corresponding to the first mounting hole, and the second mounting holes are four groups. During installation, the bolt 501 penetrates through the first installation hole and the second installation hole, the tightening nut 502 is close to the fixed end of the bolt 501 and tightly presses the first connecting disc 206, the first limiting nut 503 is located on the bolt 501 between the tightening nut 502 and the second connecting disc 207, and the second limiting nut 504 is located at the free end of the bolt 501 close to the tail end.
The limiting adjustment part 500 in this embodiment limits the axial movement range of the first metal tube core 201 and the second metal tube core 202, and specifically, when the sum of the distance between the first limiting nut 503 and the second connecting disc 207 and the distance between the second limiting nut 504 and the second connecting disc 207 is the pressure of the pressure-bearing cavity 300, the first metal tube core 201 and the second metal tube core 202 generate an upper limit value of the axial displacement, so that the first metal tube core 201 and the second metal tube core 202 are prevented from generating excessive axial displacement, and the deformation of the outer-layer airbag is prevented from being lengthened. The limiting adjustment part 500 in the embodiment has a simple structure, is convenient to operate and adjust, and has good practicability.
The elastic sealing member 203 in this embodiment is a corrugated tube, the longitudinal section of the corrugated tube is in an omega-shaped structure, the outwardly convex end surface of the corrugated tube faces the pressure-bearing chamber 300, the corrugated tube has good expansion and contraction performance, when the pressure-bearing chamber 300 is filled with high-pressure gas, the first metal tube core 201 and the second metal tube core 202 can be allowed to move, and the corrugated tube has good self-recovery performance. The structural design of this embodiment bellows still makes things convenient for the bellows both ends to correspond through bellows connection pad 2031, bellows connection pad 2032 and first connection pad 206, second connection pad 207 respectively and is connected.
Example two
The second embodiment is basically the same as the first embodiment in technical solution, and the difference is that: as shown in fig. 3 and 4, the first bellows terminal pad 2031 is in flange connection with the first terminal pad 206, the second bellows terminal pad 2032 is in flange connection with the second terminal pad 207, and a first sealing gasket 01 is disposed between the first bellows terminal pad 2031 and the first terminal pad 206 to improve the overall sealing performance of the mold; a second sealing gasket 02 is arranged between the second bellows connecting disc 2032 and the second connecting disc 207.
EXAMPLE III
The third embodiment is basically the same as the second embodiment in technical scheme, and the difference is that: as shown in fig. 5, the inner walls of the folded edges at the two ends of the outer airbag 100 are circumferentially provided with a neck with a necking structure, and the first support steel disc 204 and the second support steel disc 205 are provided with protrusions 208 adapted to the neck. The neck of throat structure can firmly wrap up arch 208, and the neck cross-section in this embodiment is "omega" type structure, and this kind of structural design makes not only have better sealed effect between steel core support body 200 and outer gasbag 100, and outer gasbag 100 can play certain spacing, positioning action to steel core support body 200 in addition.
Example four
The fourth embodiment is basically the same as the second embodiment in technical solution, and the difference is that: as shown in fig. 6, a plurality of groups of spherical protrusions (101) 101 are uniformly distributed on the inner wall of the folded edge at two ends of the outer airbag 100 along the circumferential direction, a receiving groove adapted to the spherical protrusions (101) and used for receiving the spherical protrusions (101) 101 is arranged at the corresponding position of the first supporting steel disc 204 and the second supporting steel disc 205, the spherical protrusions (101) 101 and the outer airbag 100 are of an integral structure and are made of rubber materials, and preferably, the spherical protrusions (101) 101 are 4 groups. When the steel core supporting body is used specifically in the embodiment, the spherical protrusions (101) 101 extend into corresponding grooves of the first supporting steel disc 204 and the second supporting steel disc 205, so that the steel core supporting body 200 and the outer layer air bag 100 have a good sealing effect, and the outer layer air bag 100 can play a certain limiting and positioning role on the steel core supporting body 200.
Claims (10)
1. Scalable steel core gasbag, its characterized in that: the steel core supporting body (200) comprises a first metal tube core (201) which is hermetically connected with the folded edge of the first end of the outer air bag (100), a second metal tube core (202) which is hermetically connected with the folded edge of the second end of the outer air bag (100), and an elastic sealing element (203) which is hermetically connected with the first metal tube core (201) and the second metal tube core (202); the sealing cavity formed among the first metal tube core (201), the second metal tube core (202), the elastic sealing piece (203) and the outer layer air bag (100) is a pressure bearing cavity (300), the first metal tube core (201) and/or the second metal tube core (202) are/is provided with an inflating nozzle (400) for inflating and deflating the pressure bearing cavity (300), and the sealing cap is assembled and disassembled on the inflating nozzle (400).
2. A collapsible air bag steel core according to claim 1, wherein: a first supporting steel disc (204) is arranged at the first end of the first metal tube core (201), and the first supporting steel disc (204) is in compression connection with the folded edge at the first end of the outer-layer air bag (100);
a second supporting steel disc (205) is arranged at the first end of the second metal tube core (202), and the second supporting steel disc (205) is in compression connection with the folded edge of the second end of the outer-layer air bag (100); the second end of the first metal die (201) is hermetically connected with the second end of the second metal die (202) through an elastic sealing member (203).
3. A collapsible air bag steel core according to claim 2, wherein: the second end of the first metal tube core (201) is provided with a first connecting disc (206), the second end of the second metal tube core (202) is provided with a second connecting disc (207), and the first connecting disc (206) and the second connecting disc (207) are connected through a plurality of groups of limiting adjusting parts (500).
4. A collapsible air bag steel core according to claim 3, wherein: the limiting adjusting part (500) is a bolt (501) and nut set, and the bolt (501) and nut set comprises a bolt (501), a jacking nut (502), a first limiting nut (503) and a second limiting nut (504);
a first mounting hole for a bolt (501) to pass through is formed in the first connecting disc (206); a second mounting hole for a bolt (501) to pass through is formed in the position, corresponding to the first mounting hole, of the second connecting disc (207);
the bolt (501) passes through the first mounting hole and the second mounting hole, the tightening nut (502) is close to the fixed end of the bolt (501) and tightly presses the first connecting disc (206), the first limiting nut (503) is located on the bolt (501) between the tightening nut (502) and the second connecting disc (207), and the second limiting nut (504) is located at the free end of the bolt (501).
5. A retractable steel core bladder as claimed in claim 4, wherein: the elastic sealing piece (203) is a corrugated pipe, the longitudinal section of the corrugated pipe is of an omega-shaped structure, and the end face of the outward bulge (208) of the corrugated pipe faces the pressure bearing cavity (300); two ends of the corrugated pipe are correspondingly connected with the first connecting disc (206) and the second connecting disc (207) through a first corrugated pipe connecting disc (2031) and a second corrugated pipe connecting disc (2032) respectively.
6. A retractable air-bag steel core according to claim 5, wherein: the first bellows connecting disc (2031) is in flange connection with the first connecting disc (206), and a first sealing gasket (01) is arranged between the first bellows connecting disc (2031) and the first connecting disc (206); the second bellows connecting disc (2032) is in flange connection with the second connecting disc (207), and a second sealing gasket (02) is arranged between the second bellows connecting disc (2032) and the second connecting disc (207).
7. A retractable air-bag steel core according to claim 6, wherein: the limiting adjusting parts (500) are four groups, the first mounting holes are four groups, and the second mounting holes are four groups.
8. A collapsible air bag steel core according to claim 7, wherein: the first metal tube core (201), the first supporting steel disc (204) and the first connecting disc (206) are of an integrated structure; the second metal tube core (202), the second supporting steel disc (205) and the second connecting disc (207) are of an integrated structure.
9. A collapsible air bag steel core according to claim 8, wherein: the inner walls of the folded edges at the two ends of the outer air bag (100) are circumferentially provided with clamping grooves of necking structures, the first supporting steel disc (204) and the second supporting steel disc (205) are provided with protrusions (208) matched with the clamping grooves, and the cross sections of the clamping grooves are of omega-shaped structures.
10. A collapsible air bag steel core according to claim 8, wherein: the hem inner wall at outer gasbag (100) both ends has the spherical arch of multiunit (208) along circumference equipartition, be equipped with on first support steel disc (204) and second support steel disc (205) relevant position department with spherical protruding (208) adaptation and be used for holding the holding tank of spherical protruding (208).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922330236.2U CN211441127U (en) | 2019-12-23 | 2019-12-23 | Telescopic steel core air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922330236.2U CN211441127U (en) | 2019-12-23 | 2019-12-23 | Telescopic steel core air bag |
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| Publication Number | Publication Date |
|---|---|
| CN211441127U true CN211441127U (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922330236.2U Active CN211441127U (en) | 2019-12-23 | 2019-12-23 | Telescopic steel core air bag |
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| CN (1) | CN211441127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138104A (en) * | 2021-04-11 | 2021-07-20 | 董金呈 | Industrial waste gas sampling device suitable for multiple outlet duct |
-
2019
- 2019-12-23 CN CN201922330236.2U patent/CN211441127U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138104A (en) * | 2021-04-11 | 2021-07-20 | 董金呈 | Industrial waste gas sampling device suitable for multiple outlet duct |
| CN113138104B (en) * | 2021-04-11 | 2022-09-20 | 山东中信钙业有限公司 | Industrial waste gas sampling device suitable for multiple outlet duct |
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