CN208040237U - Self-locking device maintenance window - Google Patents
Self-locking device maintenance window Download PDFInfo
- Publication number
- CN208040237U CN208040237U CN201820393234.0U CN201820393234U CN208040237U CN 208040237 U CN208040237 U CN 208040237U CN 201820393234 U CN201820393234 U CN 201820393234U CN 208040237 U CN208040237 U CN 208040237U
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- China
- Prior art keywords
- outer cover
- inner cover
- maintenance window
- self
- locking device
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Abstract
The utility model is related to maintenance window technical fields, provide a kind of self-locking device maintenance window.The plant maintenance window includes the outer cover for covering the inner cover being located in the opening of equipment and for compressing inner cover；Card column with outward extension in first end and the equipment rotation connection of inner cover, the side wall of second end, inner cover are equipped with sealing ring towards the side of opening；The first end of outer cover with offer mounting hole in equipment rotation connection, second end, outer cover towards the side of inner cover be curved surface, and outer cover on offer card slot for being clamped card column.The utility model is simple in structure, simple operation, only one piece of screw need to be used during entire installation and removal, and the constraint by using card slot to card column, so that it may substantially reduce the active force that screw is born, to be remarkably improved its coupling mechanism force, extend its service life.In addition, in curved surface sliding of the card column along outer cover, outer cover just constitutes lever construction with card column, to which staff can greatly reduce the thrust that outer cover applies.
Description
Technical field
The utility model is related to maintenance window technical fields, and in particular to a kind of self-locking device maintenance window.
Background technology
Currently, the maintenance window with sealing function is designed on many outdoor equipments, so as to when needed to equipment inside
Device operated or safeguarded, such as equipment debugging, device upgrade, equipment working state inspection, power on situations such as
Under, it is required for opening maintenance window that could be operated.
As depicted in figs. 1 and 2, existing maintenance window is generally made of cover board, sealing ring and multiple screws.In equipment in the future
Maintenance process in, staff need both hands operation can just open or close maintenance window.When equipment is mounted on higher position
When, both hands operate the operation difficulty that can greatly increase working at height personnel, and numerous screws is also resulted in and opened or closed
The operating process of maintenance window is time-consuming and laborious.In addition, sealing function can be just played since sealing ring is compressed to design size, it is each
A screw is required for bearing larger reaction force, to easily damage.When some of screws damage, sealing may result in
Unbalance stress is enclosed, and then influences leakproofness.
Invention content
To be solved in the utility model is that maintenance window installing and dismounting is inconvenient in the prior art, screw is fragile, poor sealing
The technical issues of.
To solve the above-mentioned problems, the utility model provides a kind of self-locking device maintenance window, the plant maintenance window packet
Include the outer cover for covering the inner cover being located in the opening of equipment and for compressing the inner cover；The first end of the inner cover and institute
State equipment rotation connection, second end side wall on card column with outward extension, the side of the inner cover towards the opening is set
There is sealing ring；The first end of the outer cover offers mounting hole, the outer cover direction in equipment rotation connection, second end
The side of the inner cover is curved surface, and outer cover on offer card slot for being clamped the card column.
Wherein, the outer cover is convex surface towards the side of the inner cover, and the side of the inner cover towards the outer cover is
With the concave curved surface of convex surface cooperation.
Wherein, the outer cover includes curved slab, and the both sides of the curved slab have flange, the card slot described to be opened in
Notch on flange.
Wherein, the first end of the inner cover and the first end of the outer cover are located at the both sides of the opening.
Wherein, the inner cover and the outer cover are rotatablely connected by king pin and the equipment.
Wherein, the king pin includes axis pin and the nylon spacer that is set on the axis pin.
Wherein, the both sides of the opening are respectively provided with the mounting base of the corresponding king pin of installation.
Wherein, the short transverse of mounting base described in the mounting base upper edge is equipped with multiple connecting holes.
Wherein, the card column includes jackshaft and the nylon jacket that is set on the jackshaft.
Wherein, the both sides of the second end of the inner cover are equipped with card column, and the card slot is arranged in a one-to-one correspondence with the card column.
The utility model is simple in structure, simple operation, and the thrust applied to outer cover by using staff presses card column
The curved surface of opposite outer cover slides, so that it may compress inner cover, make inner cover that the opening of equipment to be fully sealed；Then by screw by outer cover
Second end be fixed on the self-locking that the plant maintenance window is achieved that in equipment.As it can be seen that only being needed during entire installation and removal
Using one piece of screw, and the constraint by using card slot to card column, so that it may substantially reduce the active force that screw is born, so as to
It significantly improves its coupling mechanism force, extend its service life.In addition, in curved surface sliding of the card column along outer cover, outer cover is with card column with regard to structure
At lever construction, to which staff can greatly reduce the thrust that outer cover applies.
Description of the drawings
Fig. 1 is the front view of existing maintenance window；
Fig. 2 is the rear side figure of existing maintenance window；
Fig. 3 is a kind of structural schematic diagram of self-locking device maintenance window in the utility model embodiment；
In Fig. 4（a）,（b）,（c）,（d）It is the process of the Self-locking plant maintenance window in the utility model embodiment
Schematic diagram.
Reference numeral：
1, equipment；1-1, opening；2, inner cover；3, outer cover；4, sealing ring；5, card column；6, card slot；7, king pin；8, spiral shell
Nail.
Specific implementation mode
To keep the purpose, technical scheme and advantage of utility model clearer, below in conjunction with the attached drawing in utility model,
Technical solution in utility model is explicitly described, it is clear that described embodiment is that a utility model part is implemented
Example, instead of all the embodiments.Based on the embodiment in utility model, those of ordinary skill in the art are not making creation
Property labour under the premise of the every other embodiment that is obtained, belong to the range of utility model protection.
In the description of the present invention, unless otherwise indicated, the orientation of the instructions such as term "inner", "outside", "upper", "lower"
Or position relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model and simplification is retouched
It states, does not indicate or imply the indicated system or element must have a particular orientation, with specific azimuth configuration and operation,
Therefore it should not be understood as limiting the present invention.
It should be noted that unless otherwise clearly defined and limited, term " connection " shall be understood in a broad sense, for example, can
To be to be fixedly connected, may be a detachable connection, or be integrally connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected.For the ordinary skill in the art, it can understand above-mentioned term in utility model with concrete condition
Concrete meaning.
As shown in figure 3, the utility model embodiment provides a kind of self-locking device maintenance window, which includes
For covering the inner cover 2 being located on the opening 1-1 of equipment 1 and the outer cover 3 for compressing the inner cover 2；The first of the inner cover 2
End and the rotation connection of the equipment 1, second end side wall on card column 5 with outward extension, the inner cover 2 is towards the opening
The side of 1-1 is equipped with sealing ring 4；The first end of the outer cover 3 offers installation in the rotation connection of the equipment 1, second end
Hole, the outer cover 3 towards the side of the inner cover 2 be curved surface, and outer cover 3 on offer card for being clamped the card column 5
Slot 6.
As a result, as shown in Fig. 4 (a), when that need to close the plant maintenance window, staff can first push inner cover 2 that it is made to become
The opening 1-1 of nearly equipment 1, even if inner cover 2 is rotated down around its first end；Then, as shown in Fig. 4 (b), outer cover 3 is pushed to make it
Approach inner cover 2.Due to the presence of sealing ring 4, when the lid of inner cover 2 is located on opening 1-1, the side of inner cover 2 towards opening 1-1 can not
It is fitted in completely on opening 1-1.To which after outer cover 3 turns over certain angle around its first end, outer cover 3 will ride upon inner cover 2
Card column 5 on.Then, as shown in Fig. 4 (c), outer cover 3 is continued to press on, to which the thrust that staff applies outer cover 3 will lead to
It crosses card column 5 to be applied on inner cover 2, the second end of inner cover 2 then can continue approach opening 1-1 in the lower pressure of outer cover 3, together with this
When, card column 5 is just slided along the curved surface of outer cover 3 therewith.After card column 5 slides into sliding slot, the side of inner cover 2 towards opening 1-1 are proper
It is well fitted in completely on opening 1-1, that is to say, that opening 1-1 is fully sealed sealing ring 4 at this time；Finally, such as Fig. 4 (d) institutes
Show, screw 8 is inserted into the mounting hole of outer cover 3, and screwed in the threaded hole opened up in advance in equipment 1.In addition, in order to
It is easily installed, it can be achieved that assembling captive screw on the mounting hole of outer cover 3.
When that need to open the plant maintenance window, staff can first screw out screw 8 from mounting hole；Then, it pushes outer
Lid 3 makes it be rotated away from inner cover 2；Finally, the opening 1-1 rotations for pushing inner cover 2 to make it away from equipment 1.Due to opening outer cover 3
Before, sealing ring 4 is in compressive state, therefore after opening outer cover 3, inner cover 2 can be under the action of the elastic force that sealing ring 4 applies
It is rotated up, to which the thrust that staff need to only apply very little can open inner cover 2.
From the foregoing, it will be observed that the plant maintenance window presses card column 5 relatively outside by using staff to the thrust that outer cover 3 applies
The curved surface of lid 3 slides, so that it may compress inner cover 2, make inner cover 2 that the opening 1-1 of equipment 1 to be fully sealed；It then will by screw 8
The second end of outer cover 3 fixes the self-locking for achieving that the plant maintenance window on the device 1.As it can be seen that entirely mounting and dismounting process
In need to only use one piece of screw 8, and the constraint by using card slot 6 to card column 5, so that it may substantially reduce the work that screw 8 is born
Firmly, to be remarkably improved its coupling mechanism force, extend its service life.In addition, in curved surface sliding of the card column 5 along outer cover 3, outside
Lid 3 just constitutes lever construction with card column 5, to which the thrust that staff applies outer cover 3 can greatly reduce.
Preferably, the outer cover 3 is convex surface towards the side of the inner cover 2, and the inner cover 2 is towards the outer cover 3
Side is the concave curved surface coordinated with the convex surface.As a result, when outer cover 3 compresses inner cover 2, i.e., negative camber is bonded with positive camber
When, the contact area between outer cover 3 and inner cover 2 will dramatically increase, and then the stress of inner cover 2 everywhere will be more uniformly close
Deflection also can be essentially identical everywhere in seal 4, to which sealing effect can also be promoted.
Preferably, the outer cover 3 includes curved slab, and it is to be opened in that the both sides of the curved slab, which have flange, the card slot 6,
Notch on the flange.
Preferably, the first end of the inner cover 2 and the first end of the outer cover 3 are located at the both sides of the opening 1-1,
That is, i.e. when closing the plant maintenance window, the second end of inner cover 2 gradually levels off to the first end of outer cover 3, the of outer cover 3
Two ends gradually level off to the first end of inner cover 2.As a result, when outer cover 3 compresses inner cover 2, the second end of inner cover 2 is by outer cover 3
First end come what is compressed, since the torque of the second end of inner cover 2 is larger, the first end of outer cover 3 need to only apply very little
Active force.And after the plant maintenance window realizes self-locking, since outer cover 3 is by the smaller side pressure of first end i.e. torque
Tight inner cover 2, thus inner cover 2 bounce outer cover 3 just need to be compared with large driving force, at the same time, in screw 8 and card slot 6 and card column 5
Under collective effect, inner cover 2 just can not bounce outer cover 3.As it can be seen that by the way that inner cover 2 and outer cover 3 are staggeredly superposed, it is ensured that
Outer cover 3 is survivable to the impaction state of inner cover 2 so that sealing effect is more stablized.
Preferably, the inner cover 2 and the outer cover 3 are rotatablely connected by king pin 7 and the equipment 1.Wherein, institute
It states king pin 7 and includes axis pin and the nylon spacer being set on the axis pin.The advantages of this arrangement are as follows using nylon6 chips
Damping action, prevent in 1 maintenance process of equipment, inner cover 2 or outer cover 3 generation voluntarily rotate, and then influence staff's operation.
Preferably, the both sides of the opening 1-1 are respectively provided with the mounting base for installing the corresponding king pin 7.Into
One step, the short transverse of mounting base described in the mounting base upper edge is equipped with multiple connecting holes.Due to the opening of distinct device 1 1-1
The mounting condition at place is different, is connect equipment 1 with the connecting hole of different height in mounting base by bolt, so that it may adjust inner cover 2
The distance between the opening of equipment 1 1-1 ensures that opening 1-1 can be fully sealed for the closing plant maintenance window, inner cover 2.
It should be noted that realizing the adjusting of installation site in addition to opening up multiple connecting holes along the short transverse of mounting base
In addition, strip hole can also be opened up in mounting base, and the peace of mounting base is realized by adjusting position of the bolt in strip hole
The adjusting of holding position.
Preferably, the card column 5 includes jackshaft and the nylon jacket being set on the jackshaft.Setting not only may be used in this way
Using the damping action of nylon jacket, card column 5 to be avoided to be skidded off from card slot 6, self-locking performance is improved；But also it can avoid 5 phase of card column
When being slided to the curved surface of outer cover 3, card column 5 generates larger abrasion with outer cover 3.
Preferably, the both sides of the second end of the inner cover 2 are equipped with card column 5, and the card slot 6 is a pair of with the card column 5 one
It should be arranged, i.e. the both sides of outer cover 3 are equipped with card slot 6.
Finally it should be noted that：Above example is only to illustrate the technical solution of utility model, rather than its limitations；To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail utility model, it will be understood by those of ordinary skill in the art that：Its according to
So can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equally replaced
It changes；And these modifications or replacements, each embodiment technical solution of utility model that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (10)
1. a kind of self-locking device maintenance window includes for covering the inner cover being located in the opening of equipment and for compressing in described
The outer cover of lid；The rotation connection of the first end of the inner cover and the equipment, second end side wall on card column with outward extension,
The inner cover is equipped with sealing ring towards the side of the opening；The first end of the outer cover and equipment rotation connection, second
Offer mounting hole on end, the outer cover towards the side of the inner cover be curved surface, and outer cover on offer for being clamped
State the card slot of card column.
2. self-locking device maintenance window according to claim 1, which is characterized in that the outer cover towards the inner cover one
Side is convex surface, the inner cover towards the side of the outer cover be the concave curved surface coordinated with the convex surface.
3. self-locking device maintenance window according to claim 1, which is characterized in that the outer cover includes curved slab, described
The both sides of curved slab have flange, and the card slot is the notch being opened on the flange.
4. self-locking device maintenance window according to claim 1, which is characterized in that the first end of the inner cover with it is described outer
The first end of lid is located at the both sides of the opening.
5. self-locking device maintenance window according to claim 1, which is characterized in that the inner cover and the outer cover pass through
King pin is rotatablely connected with the equipment.
6. self-locking device maintenance window according to claim 5, which is characterized in that the king pin includes axis pin and is arranged
Nylon spacer on the axis pin.
7. self-locking device maintenance window according to claim 5, which is characterized in that the both sides of the opening are respectively equipped with use
In the mounting base of the corresponding king pin of installation.
8. self-locking device maintenance window according to claim 7, which is characterized in that mounting base described in the mounting base upper edge
Short transverse be equipped with multiple connecting holes.
9. self-locking device maintenance window according to claim 1, which is characterized in that the card column includes jackshaft and is arranged
Nylon jacket on the jackshaft.
10. according to claim 1 to 9 any one of them self-locking device maintenance window, which is characterized in that the second of the inner cover
The both sides at end are equipped with card column, and the card slot is arranged in a one-to-one correspondence with the card column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820393234.0U CN208040237U (en) | 2018-03-22 | 2018-03-22 | Self-locking device maintenance window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820393234.0U CN208040237U (en) | 2018-03-22 | 2018-03-22 | Self-locking device maintenance window |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040237U true CN208040237U (en) | 2018-11-02 |
Family
ID=63947460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820393234.0U Active CN208040237U (en) | 2018-03-22 | 2018-03-22 | Self-locking device maintenance window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109152A (en) * | 2020-09-01 | 2022-03-01 | 中兴通讯股份有限公司 | Locking device for maintenance window |
-
2018
- 2018-03-22 CN CN201820393234.0U patent/CN208040237U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109152A (en) * | 2020-09-01 | 2022-03-01 | 中兴通讯股份有限公司 | Locking device for maintenance window |
| WO2022048536A1 (en) * | 2020-09-01 | 2022-03-10 | 中兴通讯股份有限公司 | Maintenance window locking device |
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| GR01 | Patent grant |