CN202656134U - Spiral hold-down mechanism - Google Patents
Spiral hold-down mechanism Download PDFInfo
- Publication number
- CN202656134U CN202656134U CN 201220183320 CN201220183320U CN202656134U CN 202656134 U CN202656134 U CN 202656134U CN 201220183320 CN201220183320 CN 201220183320 CN 201220183320 U CN201220183320 U CN 201220183320U CN 202656134 U CN202656134 U CN 202656134U
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- China
- Prior art keywords
- spiral
- gland
- pressure head
- block
- down mechanism
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a spiral hold-down mechanism which comprises a press cover, a springback limiting part and a spiral press rod. The springback limiting part positions the press cover and an opening of a target sealing object. The spiral press rod penetrates through the springback limiting part and is connected with the springback limiting part through threads. A press head of the spiral press rod is vertically located above the press cover, and a protruding table is fixed at the position of the press cover corresponding to the press head and is connected with the press head through matched threads. The springback limiting part and the spiral press rod are arranged on the press cover, on one the one hand, the press cover and the target sealing object are accurately positioned through the springback limiting part, preliminary hold-down is performed, and on the other hand, the press cover and the springback limiting part act jointly through the spiral press rod, and strong force can be exerted on the press cover. Due to the fact that the press head of the spiral press rod is located above the press cover, the press cover can be subjected to even force when the spiral press rod exerts pressure on the press cover, and the sealing effect is effectively strengthened.
Description
Technical field
The utility model relates to a kind of hold down gag, is specially a kind of spiral hold-down mechanism.
Background technology
When the opening of target sealer need to be completely sealed, selected seal form has multiple, one of them is that opening part at object arranges a gland, and gland embodies its sealing property for the target sealer from two aspects, one side is the encapsulant that the sealing contact surface of gland adopts, be on the other hand the tightness degree of combination between gland and the target sealer opening, this tightness degree then is by gland the opening applied pressure to be determined.The hold-down mechanism that existing gland adopts, mostly be greatly in the edge of gland buckle is set, in the corresponding place of target sealer a hook is set, buckle on the gland is articulated on the hook of target sealer, makes gland can closely be pressed on the opening part of target sealer by the upset buckle.Although such setting has solved the sealing problem of gland to a certain extent, also exist simultaneously weak point.For example, when gland arranges single buckle, after this buckle and the hook clamping, can only apply for an impetus on the gland a simple downward pressure, so not only can't satisfy the required intensity of exerting pressure of sealing, and meeting is so that the unbalance stress of gland on sealing surface is especially less than normal away from the local pressure of buckle, and then affects the integral sealing effect of gland; When gland is provided with a plurality of buckle, these buckles respectively with corresponding hook clamping, although can solve the problem of gland unbalance stress, but simultaneously again so that the hold-down mechanism on gland and the target sealer increase, no matter in pressurization or the process of pressure release, the repetitive operation that need to lock, loosen buckle is so that complex steps.In sum, the existing problem of hold-down mechanism of existing gland is that the intensity of exerting pressure is little, and the sealing effectiveness that application of force inequality causes is poor; Or because the number that hold-down mechanism arranges is on the high side, cause operating procedure complicated.
The utility model content
In view of this, the utility model provides a kind of spiral hold-down mechanism, can provide even and enough pressure for gland, strengthens the sealing effectiveness of gland.
For solving above technical problem, the technical solution of the utility model is, a kind of spiral hold-down mechanism comprises gland, restriction resilience parts and spiral depression bar, and described restriction resilience parts position gland and target sealer opening; Described spiral depression bar runs through restriction resilience parts, and the spiral depression bar is connected by screw thread with limiting between the resilience parts; The pressure head of spiral depression bar vertically is positioned at the top of gland, and described gland is fixed with convex in the position corresponding with pressure head, and the screw thread by coupling between described convex and the pressure head is connected.
Described convex is provided with the groove with the indenter shape coupling in the position of corresponding pressure head, the outer wall of described pressure head is provided with external screw thread, and the inwall of groove is provided with internal thread, and pressure head and groove are threaded connection.
Described pressure head is provided with a block that Open Side Down, and described convex is complementary with the block opening shape, and the inwall of block opening is provided with internal thread, and the outer wall of convex is provided with external screw thread, and block is threaded connection with convex.
Be fixedly connected with between described pressure head and the block, the spiral depression bar reverses and makes pressure head drive block to reverse.
The end face of described block is provided with the groove with indenter shape coupling, and pressure head is threaded connection with the groove of block end face, and the spiral depression bar reverses and makes pressure head screw block to drive block and reverse.
Be provided with elastic cord breaker in the groove of described block end face.
Described restriction resilience parts are that this position limit arm has at least an end to be provided with snap close across the position limit arm of gland top, and snap close can be positioned at gland target sealer opening part.
Described restriction resilience parts are the inflection arm, and an end of this inflection arm is fixed on the gland, and the other end is provided with snap close, and snap close can be positioned at gland target sealer opening part.
The sealing surface of described gland is provided with sealing ring, the form fit of sealing circle and target sealer opening.
Described spiral depression bar is provided with handle.
Compared with prior art, the utility model arranges restriction resilience parts and spiral depression bar simultaneously on gland, and gland is accurately located by restriction resilience parts and target sealer on the one hand, and tentatively compresses; By the acting in conjunction of spiral depression bar with restriction resilience parts, can apply a stronger pressure for gland on the other hand.And because the pressure head of spiral depression bar is positioned at the top of gland, when the spiral depression bar was exerted pressure to gland, gland can be subject to a relatively uniformly pressure, effectively strengthened the sealing effectiveness of gland.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, gland, 2, restriction resilience parts, 3, the spiral depression bar, 4, pressure head, 5, block, 6, convex, 7, sealing ring, 8, snap close, 9, target sealer opening, 10, handle.
The specific embodiment
Core concept of the present utility model arranges a spiral depression bar above gland, it can be threaded with the convex that arranges on the gland, pass through simultaneously the effect of the restriction resilience parts of setting, the opening of gland and target sealer can be sealed effectively.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, a kind of spiral hold-down mechanism comprises gland 1, restriction resilience parts 2 and spiral depression bar 3.Gland 1, at first will accurately be located gland 1 and target sealer opening 9 by restriction resilience parts 2 before carrying out spiral compression by 3 pairs of glands of spiral depression bar as for the top of target sealer opening 9 as shown in fig. 1.And another free-revving engine that restriction resilience parts 2 are set is, the effect of a support is provided in the process of carrying out spiral compression for spiral depression bar 3, make spiral depression bar 3 effectively implement downward pressure to gland 1, make effectively press seal of gland 1 and target sealer opening 9.
Syndeton and position relationship concrete between gland 1, restriction resilience parts 2 and the spiral depression bar 3 are as follows:
Embodiment one
Referring to Fig. 1, the shaft of spiral depression bar 3 has run through restriction resilience parts 2, and wherein the shaft of spiral depression bar 3 is provided with external screw thread, and restriction resilience parts 2 be one across the position limit arm of gland 1 upper surface.The centre position of this position limit arm is provided with the through hole that the shaft with spiral depression bar 3 is complementary, be provided with in this through hole simultaneously with shaft on the internal thread that is complementary of external screw thread.The two ends of position limit arm are respectively equipped with snap close 8, and the effect that snap close 8 is set just is gland 1 and target sealer opening 9 are accurately located.
The pressure head 4 that passes the spiral depression bar 3 of position limit arm vertically is positioned at the top of gland 1, simultaneously in order to guarantee that spiral depression bar 3 can realize promoting gland 1 and press to target sealer opening 9 by reversing, so be fixedly installed a convex 6 in gland 1 and pressure head 4 corresponding positions.Be provided with the screw thread of coupling on convex 6 and the pressure head 4, pressure head 4 is by the displacement downwards of reversing of spiral depression bar 3, can be threaded with convex 6 after being displaced to certain distance, finally reach the purpose of gland 1 and target sealer opening 9 being carried out press seal by spiral compression.
Convex 6 can have various shape to be threaded with pressure head 4 in the utility model, is specially:
The external diameter of convex 6 is greater than the external diameter of pressure head 4, so the position of convex 6 corresponding pressure heads 4 arranges a cylinder shape groove that is complementary with pressure head 4 shapes again.Wherein be provided with external screw thread on the outer wall of pressure head 4, the inwall of groove is provided with internal thread, and pressure head 4 finally reaches with groove and is threaded, and then realizes the purpose of spiral compression.
Be provided with a block that Open Side Down 5 at pressure head 4, the external diameter of this block 5 is greater than the external diameter of convex 6, and the opening shape of block 5 and the shape of convex 6 are complementary, and are all the identical cylinder of diameter.The inwall of 5 openings of wherein blocking a shot is provided with internal thread, and the outer wall of convex 6 is provided with external screw thread, and block 5 finally reaches with convex 6 and is threaded, and then the purpose of realization spiral compression.
Pressure head 4 also can have different connected modes from block 5, and is specific as follows:
First kind of way is, the end face of pressure head 4 and block 5 is directly by being fixedly connected with, and screws or when lax, the pressure head 4 of rotation can drive block 5 and rotate simultaneously when spiral depression bar 3 reverses, and makes to reach synchronously between block 5 and the convex 6 to screw or relax;
The second way is, at the end face of block 5 groove with pressure head 4 form fit is set, and groove and the pressure head 4 of 5 end faces of blocking a shot are respectively equipped with internal and external screw thread.When spiral depression bar 3 reverses when screwing, the pressure head 4 of rotation at first screws with the groove of block 5 end faces, and after both pressure heads 4 and block 5 screwed, pressure head 4 drove block 5 again and rotates, and realized screwing of block 5 and convex 6.When spiral depression bar 3 reverses when lax, the block 5 with pressure head 4 screws at first can break away from convex 6 by the drive of spiral depression bar 3, further blocks a shot 5 to break away from spiral depression bar 3 again, realizes relaxing of block 5 and convex 6.In this kind mode, be provided with an elastic cord breaker in the groove of 5 end faces of blocking a shot, prevent on the one hand the wearing and tearing of 4 pairs of blocks of pressure head, 5 end faces, strengthen on the other hand the degree of screwing of pressure head 4 and block 5 end face grooves.
Embodiment two
The difference of present embodiment and embodiment one only is to limit the shape of resilience parts 2, and set position.Specific as follows:
In the present embodiment, restriction resilience parts 2 are the inflection arm, and an end of this inflection arm is fixed on the gland 1, and the other end is provided with snap close 8, and snap close 8 can be accurately positioned in gland 1 target sealer opening 9 places.Spiral compression bar 3 runs through the inflection arm in the same way, and the spiral compression process of carrying out is identical with embodiment one.
The utility model is provided with sealing ring 7 at the sealing surface of gland 1, and referring to Fig. 1, the form fit of sealing ring 7 and target sealer opening 9 is strengthened the press seal effect of gland with this.
In order to make things convenient for screwing and relaxing of spiral depression bar 3, so be provided with handle 10 in the upper end of spiral depression bar 3.
Only be preferred embodiment of the present utility model below, should be pointed out that above-mentioned preferred embodiment should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with the claim limited range.For those skilled in the art, within not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. spiral hold-down mechanism, it is characterized in that, comprise gland (1), restriction resilience parts (2) and spiral depression bar (3), described restriction resilience parts (2) position gland (1) and target sealer opening (9); Described spiral depression bar (3) runs through restriction resilience parts (2), and spiral depression bar (3) is connected by screw thread with limiting between the resilience parts (2); The pressure head (4) of spiral depression bar (3) vertically is positioned at the top of gland (1), described gland (1) is fixed with convex (6) in the position corresponding with pressure head (4), and the screw thread by coupling between described convex (6) and the pressure head (4) is connected.
2. spiral hold-down mechanism as claimed in claim 1, it is characterized in that, described convex (6) is provided with the groove with pressure head (4) form fit in the position of corresponding pressure head (4), the outer wall of described pressure head (4) is provided with external screw thread, the inwall of groove is provided with internal thread, and pressure head (4) is threaded connection with groove.
3. spiral hold-down mechanism as claimed in claim 1, it is characterized in that, described pressure head (4) is provided with a block that Open Side Down (5), described convex (6) is complementary with block (5) opening shape, the inwall of block (5) opening is provided with internal thread, the outer wall of convex (6) is provided with external screw thread, and block (5) is threaded connection with convex (6).
4. spiral hold-down mechanism as claimed in claim 3 is characterized in that, described pressure head (4) is fixedly connected with between (5) with block, and spiral depression bar (3) reverses and makes pressure head (4) drive block (5) to reverse.
5. spiral hold-down mechanism as claimed in claim 3, it is characterized in that, the end face of described block (5) is provided with the groove with pressure head (4) form fit, pressure head (4) is threaded connection with the groove of block (5) end face, spiral depression bar (3) reverse make pressure head (4) screw block (5) drive to block a shot (5) reverse.
6. spiral hold-down mechanism as claimed in claim 5 is characterized in that, is provided with elastic cord breaker in the groove of described block (5) end face.
7. such as the described spiral hold-down mechanism of any one among the claim 1-6, it is characterized in that, described restriction resilience parts (2) are the position limit arm across the gland top, this position limit arm has at least an end to be provided with snap close (8), and snap close (8) can be positioned at gland (1) target sealer opening (9) and locate.
8. such as the described spiral hold-down mechanism of any one among the claim 1-6, it is characterized in that, described restriction resilience parts (2) are the inflection arm, one end of this inflection arm is fixed on the gland (1), the other end is provided with snap close (8), and snap close (8) can be positioned at gland (1) target sealer opening (9) and locate.
9. spiral hold-down mechanism as claimed in claim 1 is characterized in that, the sealing surface of described gland (1) is provided with sealing ring (7), the form fit of sealing circle (7) and target sealer opening (9).
10. spiral hold-down mechanism as claimed in claim 1 is characterized in that, described spiral depression bar (3) is provided with handle (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220183320 CN202656134U (en) | 2012-04-26 | 2012-04-26 | Spiral hold-down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220183320 CN202656134U (en) | 2012-04-26 | 2012-04-26 | Spiral hold-down mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202656134U true CN202656134U (en) | 2013-01-09 |
Family
ID=47451067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220183320 Expired - Fee Related CN202656134U (en) | 2012-04-26 | 2012-04-26 | Spiral hold-down mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202656134U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627258A (en) * | 2017-11-02 | 2018-01-26 | 天津安固密封技术有限公司 | A kind of closure instrument |
| CN112356448A (en) * | 2020-10-16 | 2021-02-12 | 李少华 | Vertical laminating equipment for composite laminating and bonding of pressure-sensitive material and application |
-
2012
- 2012-04-26 CN CN 201220183320 patent/CN202656134U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627258A (en) * | 2017-11-02 | 2018-01-26 | 天津安固密封技术有限公司 | A kind of closure instrument |
| CN112356448A (en) * | 2020-10-16 | 2021-02-12 | 李少华 | Vertical laminating equipment for composite laminating and bonding of pressure-sensitive material and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130109 Termination date: 20150426 |
|
| EXPY | Termination of patent right or utility model |