CN214171311U - End cover mechanism for cavity - Google Patents
End cover mechanism for cavity Download PDFInfo
- Publication number
- CN214171311U CN214171311U CN202023053574.5U CN202023053574U CN214171311U CN 214171311 U CN214171311 U CN 214171311U CN 202023053574 U CN202023053574 U CN 202023053574U CN 214171311 U CN214171311 U CN 214171311U
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- Prior art keywords
- end cover
- cavity
- mandrel
- spring structure
- end cap
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- 238000007789 sealing Methods 0.000 claims description 12
- 230000000670 limiting effect Effects 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005242 forging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model provides a cavity end cover mechanism, include: an end cap (1) for covering the opening of the cavity (12); a mandrel (2) which is arranged on one side surface of the end cover (1) and extends along the vertical direction; a mechanism bracket (8) fixedly arranged on the outer wall of the cavity (12), wherein the mechanism bracket is provided with a through hole; and the spring structure (4) is arranged on the lower surface of the mechanism support, the mandrel (2) extends downwards through the through hole and penetrates through the spring structure (4), and the bottom of the spring structure (4) is connected with the lower end part of the mandrel (2), so that the downward pulling force is applied to the end cover (1) through the mandrel (2) to cover the cavity (12).
Description
Technical Field
The utility model relates to a cavity container design technical field, especially a structural design that is used for end cover mechanism of cavity.
Background
The cavity end cover mechanism compresses the sealed cavity through the spring force of the mechanism, and fixes the cavity end cover on the cavity, thereby facilitating the opening and closing. The structure of the end cover sealing device of the vacuum container consists of a bearing component and a sealing element, wherein the bearing component mainly bears axial force which is caused by internal pressure and acts on a top cover, and the connecting form and the existing main problems of the bearing component in the structure of the end cover sealing device of the vacuum container comprise: (1) the top cover is fixed on the end flange through the main bolt and the nut, the main bolt bears the axial force caused by internal pressure and provides the pre-tightening force required by a sealing element to form initial sealing, the structure is simple, but the diameter and the number of the bolts are increased along with the increase of the pressure and the inner diameter of a container, the whole structure is large and heavy, the cost is high, the assembly and disassembly are inconvenient, a large-scale wrench or a special hydraulic wrench is needed, the working labor intensity is high, the assembly and disassembly time is long, and particularly under the conditions of large pressure and large inner diameter of a cylinder, the sizes of the end flange and the top cover of the cylinder are large; (2) the structure of the thread sleeve in the Cazarin is compact because a main bolt with a large diameter is saved, although the disassembly and the assembly are convenient, the thread sleeve and the top cover are obvious in family because the diameter of the container is increased, the structure is huge, the processing of the sawtooth thread is difficult, the cost is high, and the precision requirement is draft; (3) the wood type flange shoulder structure is characterized in that the top cover and the flange at the end part of the cylinder are connected through the four-closed ring, and bear the axial force caused by internal pressure, so that good sealing performance can be kept even when medium pressure and temperature fluctuate, the sealing is reliable, but the structure is complex, the flange is particularly large, the top cover is heavy, the four-closed ring is complex, the processing precision and the assembly requirement are high, the cost is high, and more vacuum space is occupied; the block clamp structure is generally divided into two or three pieces, each piece is connected by a transverse bolt, the use is convenient, but for a pressure container with a larger diameter, a large forging piece is needed, the structure is complicated and heavy, and the manufacturing cost is high; (5) the axial shear-resistant bolt structure is easy to process, but the phenomenon of thread seizure is easy to occur, and the bearing structure bears all loads generated by medium pressure by means of the shear-resistant capacity of the longitudinal section of the bolt, so that the assembly and disassembly are difficult. In a word, some prior art schemes can not realize closing the strict sealing after the lid and compress tightly, in addition also not realize opening and shutting through rotatory tensile mode from top to bottom, and occupation space is great, and inconvenient dismantlement is maintained and is changed new spare part.
Disclosure of Invention
In order to overcome the above-mentioned problem that prior art exists, the utility model provides an end cover mechanism for vacuum (negative pressure) cavity can realize closing and compress tightly after covering, and convenient the opening and shutting occupies that space is little, dismantles advantages such as renewal part is convenient.
An object of the utility model is to provide an end cover mechanism for cavity, include:
an end cap (1) for covering the opening of the cavity (12);
a mandrel (2) which is arranged on one side surface of the end cover (1) and extends along the vertical direction;
a mechanism bracket (8) fixedly arranged on the outer wall of the cavity (12), wherein the mechanism bracket is provided with a through hole;
and the spring structure (4) is arranged on the lower surface of the mechanism support, the mandrel (2) extends downwards through the through hole and penetrates through the spring structure (4), and the bottom of the spring structure (4) is connected with the lower end part of the mandrel (2), so that the downward pulling force is applied to the end cover (1) through the mandrel (2) to cover the cavity (12).
Preferably, the cavity end cover mechanism further comprises a gasket (3), wherein the gasket (3) is arranged around the mandrel (2) and used for limiting the height of the end cover (1) when the end cover is lowered.
Preferably, the cavity end cover mechanism further comprises a shaft elastic retainer ring (5) arranged at the lower end part of the mandrel (2), and the spring (4) and the mandrel (2) are connected through the shaft elastic retainer ring (5).
Preferably, the cavity end cover mechanism further comprises a protective sleeve (6), and the protective sleeve (6) is arranged on the lower surface of the mechanism support (8) and sleeved on the outer side of the spring (4).
Preferably, the cavity end cover mechanism further comprises an oilless bushing (7), wherein the oilless bushing (7) is arranged in the through hole and surrounds the spindle (2), and the spindle (2) is connected with the mechanism support (8) in a sliding and sealing mode.
Preferably, the cavity end cover mechanism further comprises a stopper (9), and the stopper (9) is arranged on the mechanism support (8).
Preferably, the cavity end cover mechanism further comprises an alignment device arranged on the end cover (1) and the cavity (12).
Preferably, the aligner comprises a sensing block (10) and a position sensor (11) which are matched with each other, and when the end cover (1) is closed, the position sensor (11) detects the position of the sensing block (10) so as to ensure the end cover to be hermetically closed.
The working principle of the mechanism is as follows:
after the end cover 1 is lifted upwards by hands, the end cover 1 can be rotated to realize the opening and closing of the end cover 1. Under the normal closing cap state, spring structure 4 is in compression state, and when unclamping end cover 1, end cover 1 moves down under the effect of spring structure 4's spring force, and under the displacement limiting effect of gasket 3, end cover 1 stops at fixed height, exerts the effort through axle circlip 5 to the mandrel to with covering tight pressure on the cavity. After the end cover 1 is pulled upwards vertically, the end cover can rotate by taking the mandrel as a center, and at the moment, the limiting stopper 9 can limit the rotation direction of the end cover 1, so that the end cover 1 is ensured to rotate towards one direction. The aligner is matched and used after the end cover 1 is closed, so that the completion of the alignment and closing of the end cover 1 with near zero error is ensured.
The utility model has the advantages that:
the cover is tightly pressed after being closed, the cover is convenient to open and close, the occupied space is small, and the parts are convenient to disassemble and replace.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Brief description of the drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
fig. 1 is a three-dimensional structure diagram of a cavity end cover mechanism according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a spring structure of a cavity end cover mechanism according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a sheath structure of a spring of a cavity end cover mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a mechanism bracket of a cavity end cover mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a position limiter and a position sensor of a cavity end cover mechanism according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a sensing block structure of the cavity end cover mechanism according to the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the present invention is not limited thereto.
Referring to fig. 1 and 4, the chamber end cap mechanism comprises: an opening end cover 1 for covering the cavity 12, a mandrel 2 arranged on one side surface of the end cover 1, a gasket 3, a spring structure 4 and a mechanism bracket 8; the spindle 2 extends in a vertical direction and is fixed at its top end to one side of the end cap 1, for example by lugs projecting from the end cap face. A spacer 3 is provided around the spindle 2 for limiting the height of the end cap 1 when it is lowered.
The mechanism bracket 8 is fixedly arranged on the outer wall of the cavity 12 and is provided with a through hole; a spring structure 4 is arranged on the lower surface of the mechanism support, the spindle 2 extends downwards through the through hole of the mechanism support and passes through the spring structure 4, and the bottom of the spring structure 4 is connected with the lower end part of the spindle 2, for example, by a shaft circlip 5 arranged at the lower end of the spindle 2 for connecting contact, so that the spindle 2 applies a downward pulling force to the end cover 1 to cover the cavity 12. The circlip 5 for the shaft can prolong the service life of the spring structure 4 and prevent the spring structure 4 from rigidly colliding and damaging the mechanism bracket 8 after elastic failure.
As shown in fig. 2-3, the mechanism further comprises a protective sleeve 6, the protective sleeve 6 is disposed on the lower surface of the mechanism support 8 and surrounds the spring structure 4, so as to prevent the spring structure 4 from corroding, wearing or other industrial damages, which affect the normal operation of the end cover.
The device of the invention also comprises an oilless bushing 7, wherein the oilless bushing 7 is arranged in the through hole and surrounds the spindle 2, so that the spindle 2 is connected with the mechanism bracket 8 in a sliding and sealing mode, and the mechanism bracket 8 and the spindle 2 are prevented from being worn hard mechanically.
As shown in fig. 4-5, the mechanism further comprises a stopper 9, and the stopper 9 is disposed on the mechanism bracket 8 to restrict the rotation of the end cap 1 in one direction after being lifted upward.
As shown in fig. 5-6, the cover mechanism further includes an aligner, the aligner includes a sensing block 10 and a position sensor 11, and when the end cover 1 is closed, the position sensor 11 detects the position of the sensing block 10 to ensure the end cover is hermetically closed.
The working principle of the mechanism is as follows:
after the end cover 1 is lifted upwards by hands, the end cover 1 can be rotated to realize the opening and closing of the end cover 1. Under the normal closing cap state, spring structure 4 is in compression state, and when unclamping end cover 1, end cover 1 moves down under the effect of spring structure 4's spring force, and under the displacement limiting effect of gasket 3, end cover 1 stops at fixed height, exerts the effort through axle circlip 5 to the mandrel to with covering tight pressure on the cavity. After the end cover 1 is pulled upwards vertically, the end cover can rotate by taking the mandrel as a center, and at the moment, the limiting stopper 9 can limit the rotation direction of the end cover 1, so that the end cover 1 is ensured to rotate towards one direction. The aligner is matched and used after the end cover 1 is closed, so that the completion of the alignment and closing of the end cover 1 with near zero error is ensured.
The structure is convenient to open and close when the cover is closed and then compressed, the occupied space is small, and the parts are convenient to disassemble and replace.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by applying specific examples, and the descriptions of the above embodiments are only applicable to help understanding the principles of the embodiments of the present invention; meanwhile, the detailed description and the application scope of the embodiments of the present invention can be changed by those skilled in the art, and in summary, the content of the present description should not be construed as limiting the present invention.
Claims (8)
1. An end cap mechanism for a chamber, comprising:
an end cap (1) for covering the opening of the cavity (12);
a mandrel (2) which is arranged on one side surface of the end cover (1) and extends along the vertical direction;
a mechanism bracket (8) fixedly arranged on the outer wall of the cavity (12), wherein the mechanism bracket is provided with a through hole;
and the spring structure (4) is arranged on the lower surface of the mechanism support, the mandrel (2) extends downwards through the through hole and penetrates through the spring structure (4), and the bottom of the spring structure (4) is connected with the lower end part of the mandrel (2), so that the downward pulling force is applied to the end cover (1) through the mandrel (2) to cover the cavity (12).
2. An end cap mechanism for a chamber of claim 1, wherein: the end cover further comprises a gasket (3), wherein the gasket (3) is arranged around the mandrel (2) and used for limiting the height of the end cover (1) when the end cover is lowered.
3. An end cap mechanism for a chamber of claim 1, wherein: the spring structure further comprises a shaft elastic retainer ring (5) arranged at the lower end part of the mandrel (2), and the spring structure (4) and the mandrel (2) are connected through the shaft elastic retainer ring (5).
4. An end cap mechanism for a chamber of claim 1, wherein: still include protective sheath (6), protective sheath (6) set up on mechanism support (8) lower surface and cup joint in the spring structure (4) outside.
5. An end cap mechanism for a chamber of claim 1, wherein: still include oilless bush (7), oilless bush (7) set up in among the through-hole and surround spindle (2), guarantee spindle (2) and mechanism support (8) slidable sealing connection.
6. An end cap mechanism for a chamber of claim 1, wherein: the mechanism is characterized by further comprising a limiting stopper (9), wherein the limiting stopper (9) is arranged on the mechanism support (8).
7. An end cap mechanism for a chamber of claim 1, wherein: the device also comprises an aligner arranged on the end cover (1) and the cavity (12).
8. An end cap mechanism for a chamber of claim 7, wherein: the aligner comprises an induction block (10) and a position sensor (11) which are matched with each other, and when the end cover (1) is closed, the position sensor (11) is used for detecting the position of the induction block (10) so as to ensure the sealing and closing of the end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023053574.5U CN214171311U (en) | 2020-12-17 | 2020-12-17 | End cover mechanism for cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023053574.5U CN214171311U (en) | 2020-12-17 | 2020-12-17 | End cover mechanism for cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214171311U true CN214171311U (en) | 2021-09-10 |
Family
ID=77606825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023053574.5U Active CN214171311U (en) | 2020-12-17 | 2020-12-17 | End cover mechanism for cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214171311U (en) |
-
2020
- 2020-12-17 CN CN202023053574.5U patent/CN214171311U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 637000 Duofu Industrial Park, Xichong County, Nanchong City, Sichuan Province Patentee after: SICHUAN JIUTIAN VACUUM TECHNOLOGY CO.,LTD. Country or region after: China Address before: 637000 Duofu Industrial Park, Xichong County, Nanchong City, Sichuan Province Patentee before: SICHUAN JIUTIAN VACUUM TECHNOLOGY Co.,Ltd. Country or region before: China |