CN110155247B - Limited space opening device - Google Patents
Limited space opening device Download PDFInfo
- Publication number
- CN110155247B CN110155247B CN201910490718.6A CN201910490718A CN110155247B CN 110155247 B CN110155247 B CN 110155247B CN 201910490718 A CN201910490718 A CN 201910490718A CN 110155247 B CN110155247 B CN 110155247B
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- Prior art keywords
- opening
- limited space
- plate
- internal resistance
- resistance device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
Abstract
The invention discloses a limited space opening device, which comprises an opening and a limited space lock, wherein the limited space opening device is communicated with the inside and the outside of a limited space, the limited space lock is used for limiting the area of the opening, and comprises an internal resistance device and an external resistance device which are detachably connected. The limited space opening device provided by the invention divides the limited space opening through the internal resistance device and the external resistance device which are mutually crossed and fixed, so that the limited space opening can not pass through due to the arrangement of the limited space lock, and the opening is not completely closed, thereby meeting the requirement of surplus space when smaller equipment is introduced into the limited space, on one hand, the complete covering mode is abolished, the opening and closing are rapid, the cost is reduced, on the other hand, the requirement of equipment passing is realized, and the device is more convenient.
Description
Technical Field
The invention relates to the field of ship manufacturing and assembling, in particular to a limited space opening device.
Background
The limited space is a closed or partially closed space which is relatively isolated from the outside, has a narrow entrance and exit, cannot be used for a long time by operating personnel, has poor natural ventilation and is easy to cause accumulation of toxic and harmful, flammable and explosive substances or insufficient oxygen content. Generally, as a limited space, it generally has some factors which are not beneficial to human long-term intervention, such as poor ventilation, easy poisoning, accumulation of flammable gas, and lack of oxygen for people. For some limited spaces, the complexity of the internal construction is also one of the causes of accidents.
Usually, at the opening part in finite space, the administrator can set up sealing device artificially in order to avoid personnel's mistake to go into and lead to the occurence of failure of different degrees, directly sets up a closing plate and covers at the opening part promptly to fixed the separation finite space that communicates with the external world all around. However, this sealed blocking method requires a relatively small passage at the opening of the limited space, which is not satisfactory for use in placing small devices such as pipes into the limited space. Moreover, if the sealing is not performed, the pipeline is directly arranged to lead into the limited space, a space allowing one person to pass through can be reserved at the opening, the environment in the limited space is relatively dangerous at the moment, the opening cannot be sealed, and the possibility of mistaken entry of the person is high under the condition that the opening is smooth. Moreover, the direct use of a sealing plate to completely seal the opening is often complicated to operate, time consuming, costly, and not conducive to evacuation of personnel or gases in an emergency, and therefore still presents a certain risk.
Disclosure of Invention
The invention aims to solve the technical problem of providing a limited space opening device in order to overcome the defects that the operation of a limited space sealing and blocking mode in the prior art is complicated, and personnel can not be limited to enter and exit while small equipment passes through.
The invention solves the technical problems through the following technical scheme:
a limited space opening device is characterized by comprising an opening, wherein the opening is communicated with the internal space of a limited space and the outside, the limited space opening device further comprises a limited space lock, the limited space lock is used for limiting the area of the opening, the limited space lock comprises an internal resistance device and an external resistance device, and the internal resistance device is detachably connected with the external resistance device;
when the finite space lock is in a locking state, two ends of the internal resistance device abut against the inner side edge of the opening, two ends of the external resistance device abut against the outer side edge of the opening, the internal resistance device and the external resistance device are in a relatively fixed state, and the internal resistance device and the external resistance device divide the surface of the opening into a plurality of parts. The two ends of the internal resistance device and the external resistance device are respectively abutted against the inner side edge part and the outer side edge part of the opening, so that the internal resistance device and the external resistance device cannot be disassembled from the opening by means of relative resistance in the opposite direction of the internal resistance device and the external resistance device when the internal resistance device and the external resistance device are in a fixed connection state, the purpose of limiting the opening is achieved, namely, the opening is subjected to surface segmentation, the size of the opening which allows one person to pass is not obtained, and the setting effect of the limited space lock is further achieved.
Preferably, the internal resistance device includes at least one internal resistance plate, and both ends of the at least one internal resistance plate abut against the inner side edge portion of the opening.
Preferably, the external resistance device includes at least one external resistance plate, and both ends of the at least one external resistance plate abut against the outer side edge of the opening.
Preferably, when the limited space lock is in a locked state, the inner resistance plate and the outer resistance plate are fixedly connected through a fastener.
Preferably, when the limited space lock is in a locked state, the overlapped positions of the inner resistance plate and the outer resistance plate are both provided with threaded holes with opposite positions, and the outer resistance plate and the inner resistance plate are fixedly connected by penetrating the threaded holes through screws. The mode of using the screw fixed connection can guarantee the joint strength between interior resistance board and the outer resistance board, prevents to make this limited space lock drop and lost the effect of limited space lock because of the not hard up of hookup location.
Preferably, a fixing plate is arranged at one position of the outer surface of the inner resistance plate, a lock hole is formed in one end, far away from the inner resistance plate, of the fixing plate, a limit groove is formed in the surface of the outer resistance plate, when the finite space lock is in a locking state, the fixing plate penetrates through the limit groove, a fixing piece penetrating through the lock hole is arranged in the lock hole, and the fixing piece is used for enabling the fixing plate to be incapable of being pulled out from the limit groove. Wear to establish and disassemble fast at the spacing operator of being convenient for of lockhole department through the fixed plate between interior board and the outer board that hinders, can resume opening part size fast when meetting some emergency like inside mistake income personnel need withdraw to the simple and convenient easy operation of connected mode uses manpower sparingly, time and cost.
Preferably, the outer edge of the opening is provided with a plurality of projections, the end of the outer baffle plate is provided with an end limiting hole, and when the limited space lock is in a locked state, the projections penetrate through the end limiting hole. The position of the outer resistance plate is further fixed by the arrangement of the convex block, so that the outer resistance plate is prevented from loosening and sliding off outside the opening, namely, the outer resistance plate is limited by the convex block, and the relative displacement between the outer resistance plate, the inner resistance plate and the opening is further avoided.
Preferably, the center point of the inner resistance plate and the center point of the outer resistance plate coincide with the center point of the opening of the limited space.
Preferably, at least one group of the inner resistance plates and the outer resistance plates are arranged perpendicular to each other. At least one group of the inner resistance plate and the outer resistance plate are perpendicular to each other, so that the surface of the opening can be uniformly divided, and the phenomenon that the opening is still large due to uneven division and the limited space is not limited to enter and exit is avoided.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows: the opening device of the limited space provided by the invention divides the opening surface of the limited space into areas by arranging a group of internal resistance devices and external resistance devices which are mutually crossed and can be fixedly connected, so that the originally larger opening can not be penetrated by people due to the arrangement of the external resistance devices and the internal resistance devices. And on the basis that personnel can't pass through and do not seal the opening totally, when satisfying some less equipment that need let in to finite space like the pipeline, still have the demand that surplus space allowed it to wear to establish, abolished traditional closing plate and covered the mode totally on the one hand, opened and shut fast, reduced economy and human cost, on the other hand has realized the demand that allows equipment to pass through simultaneously, and it is more convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of a limited space opening device according to a preferred embodiment of the invention.
Fig. 2 is a schematic structural diagram of an overlapping portion of an inner baffle plate and an outer baffle plate of a limited space opening device according to a preferred embodiment of the invention.
Description of reference numerals:
opening 1
Bump 4
Detailed Description
The present invention will be more clearly and completely described below by way of a preferred embodiment in conjunction with the accompanying drawings, without thereby limiting the scope of the invention to the described embodiment.
As shown in fig. 1 and 2, the present invention provides a limited space opening apparatus including an opening 1 for communicating an inner space of a limited space with the outside, and a limited space lock for limiting the area of the opening 1. The limited space lock comprises an internal resistance device and an external resistance device, and the internal resistance device is detachably connected with the external resistance device. When the limited space lock is in a locking state, two ends of the internal resistance device are abutted against the inner side edge part of the opening 1, two ends of the external resistance device are abutted against the outer side edge part of the opening 1, at the moment, the internal resistance device and the external resistance device are fixedly connected relatively, and the surface of the opening 1 is divided into a plurality of parts by the internal resistance device and the external resistance device. The arrangement mode of the internal resistance device and the external resistance device ensures that the internal resistance device and the external resistance device cannot be disassembled from the opening 1 by respectively relying on the relative resistance in the opposite direction with the side part of the opening 1, thereby achieving the purpose of limiting the opening 1, namely, the opening 1 is divided into surfaces, so that the opening does not have the size which allows one person to pass through, and further achieving the effect of arranging the limited space lock.
The internal resistance device comprises at least one internal resistance plate 2, and two ends of the at least one internal resistance plate 2 are abutted to the inner side edge part of the opening 1. The external resistance device comprises at least one external resistance plate 3, and two ends of the at least one external resistance plate 3 are abutted to the outer side edge part of the opening 1. In this embodiment, the internal resistance device comprises an internal resistance plate 2, the external resistance device comprises an external resistance plate 3, the internal resistance plate 2 and the external resistance plate 3 are arranged perpendicular to each other, and the central point of the internal resistance plate 2 and the central point of the external resistance plate 3 coincide with the central point of the opening 1 of the finite space. Therefore, the surface of the opening 1 can be uniformly divided, so that the problem that the surface of the opening 1 still has a large gap due to uneven division and does not play a role in limiting the access of a limited space is avoided. In other embodiments, two or more inner resistance plates 2 or outer resistance plates 3 may be provided for the inner resistance device or the outer resistance device to further limit the area of the split opening 1, and two or more sets of inner resistance plates 2 and outer resistance plates 3 may be perpendicular to each other, or may not be perpendicular to each other, so as to ensure the function of limiting the surface of the opening 1.
When the limited space lock is in a locking state, the inner resistance plate 2 and the outer resistance plate 3 are fixedly connected through a fastener. The outer surface of the inner resistance plate 2 is provided with a fixing plate 21 at one position, the fixing plate 21 is provided with a lock hole at one end far away from the inner resistance plate 2, the surface of the outer resistance plate 3 is provided with a limit groove, the fixing plate 21 penetrates through the limit groove, and a fixing part penetrating through the lock hole and arranged on the lock hole is arranged in the lock hole and used for enabling the fixing plate 21 to be incapable of being pulled out from the limit groove. In this embodiment, a hanging lock is hung on the lock hole to achieve the limiting effect. The inner baffle plate 2 and the outer baffle plate 3 penetrate through the limiting groove through the fixing plate 21 and are limited at the lock hole, so that an operator can conveniently and quickly disassemble, the size of the opening 1 can be quickly recovered when the operator needs to evacuate due to the fact that the operator mistakenly enters the inner baffle plate and the outer baffle plate in some emergency situations, and the device is simple, convenient and easy to operate, and saves manpower, time and cost. In other embodiments, threaded holes with opposite positions may be provided at the overlapping positions of the inner resistance plate 2 and the outer resistance plate 3, and the outer resistance plate 3 and the inner resistance plate 2 are fixedly connected by passing through the threaded holes with screws. The mode of this kind of screw connection can improve interior resistance board 2 and the joint strength who hinders board 3 outward, prevents to make limited space lock drop and cause some uncontrollable circumstances to take place because of the junction is not hard up.
Furthermore, a plurality of bumps 4 are arranged on the outer side edge of the opening 1, the end part of the outer resistance plate 3 is provided with an end part limiting hole, when the limited space lock is in a locking state, the bumps 4 penetrate through the end part limiting hole, and the position of the outer resistance plate 3 is further fixed, so that the outer resistance plate 3 cannot be loosened and slide off outside the opening 1, namely, the outer resistance plate 3 is limited by the bumps 4, and the relative displacement among the outer resistance plate 3, the inner resistance plate 2 and the opening 1 is further avoided.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (9)
1. A limited space opening device is characterized by comprising an opening, wherein the opening is communicated with the internal space of a limited space and the outside, the limited space opening device further comprises a limited space lock, the limited space lock is used for limiting the area of the opening, the limited space lock comprises an internal resistance device and an external resistance device, and the internal resistance device is detachably connected with the external resistance device;
when the finite space lock is in a locking state, two ends of the internal resistance device abut against the inner side edge of the opening, two ends of the external resistance device abut against the outer side edge of the opening, the internal resistance device and the external resistance device are in a relatively fixed state, and the internal resistance device and the external resistance device divide the surface of the opening into a plurality of parts.
2. The confined space opening device of claim 1 wherein said internal resistance means includes at least one internal resistance plate, both ends of at least one internal resistance plate abutting against the inside edge of said opening.
3. The confined space opening device of claim 2 wherein said external resistance means includes at least one external resistance plate, both ends of at least one of said external resistance plates abutting against the outside edge of said opening.
4. The limited space opening device of claim 3, wherein the inner resistance plate and the outer resistance plate are fixedly coupled by a fastener when the limited space lock is in the locked state.
5. The opening device of claim 4, wherein when the limited space lock is in a locked state, the inner blocking plate and the outer blocking plate are provided with threaded holes at positions overlapping each other, and the outer blocking plate and the inner blocking plate are fixedly connected by a screw passing through the threaded holes.
6. The confined space opening device as claimed in claim 4, wherein a fixing plate is disposed at a position on the outer surface of the inner blocking plate, a locking hole is disposed at an end of the fixing plate away from the inner blocking plate, a limiting groove is disposed on the surface of the outer blocking plate, when the confined space lock is in a locked state, the fixing plate passes through the limiting groove, and a fixing member is disposed in the locking hole and penetrates through the locking hole, and the fixing member is used to prevent the fixing plate from being pulled out of the limiting groove.
7. The confined space opening device as claimed in claim 3 wherein the outside edge of said opening is provided with a plurality of projections, the end of said outer blocking plate is provided with an end limiting hole, and when said confined space lock is in a locked state, said projections are inserted into said end limiting hole.
8. The confined space opening device of claim 3 wherein the center point of the inner baffle plate, the center point of the outer baffle plate and the center point of the confined space opening coincide.
9. The confined space opening device of claim 3 wherein at least one of said inner and outer baffles is disposed perpendicular to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490718.6A CN110155247B (en) | 2019-06-06 | 2019-06-06 | Limited space opening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490718.6A CN110155247B (en) | 2019-06-06 | 2019-06-06 | Limited space opening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110155247A CN110155247A (en) | 2019-08-23 |
| CN110155247B true CN110155247B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910490718.6A Active CN110155247B (en) | 2019-06-06 | 2019-06-06 | Limited space opening device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100640296B1 (en) * | 2005-01-25 | 2006-10-31 | 대우조선해양 주식회사 | Lift type step apparatus for inner working hopper block of vessel |
| CN101254822A (en) * | 2008-04-15 | 2008-09-03 | 泰州口岸船舶有限公司 | Ship manhole cover protecting device |
| CN201756172U (en) * | 2010-08-24 | 2011-03-09 | 大连船舶重工集团有限公司 | Process unit for protecting safety of deck constructers |
| CN104828206A (en) * | 2015-05-13 | 2015-08-12 | 广西梧州运龙港船机械制造有限公司 | Fall-protection support for manhole of ship |
| CN107323616A (en) * | 2017-07-05 | 2017-11-07 | 海宁文硕科技咨询有限公司 | A kind of manhole protector of ship |
| CN207595187U (en) * | 2017-10-30 | 2018-07-10 | 上海江南长兴造船有限责任公司 | A kind of manhole protective device |
| CN208069952U (en) * | 2018-03-28 | 2018-11-09 | 金海智造股份有限公司 | A kind of multi-functional grille cover |
-
2019
- 2019-06-06 CN CN201910490718.6A patent/CN110155247B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100640296B1 (en) * | 2005-01-25 | 2006-10-31 | 대우조선해양 주식회사 | Lift type step apparatus for inner working hopper block of vessel |
| CN101254822A (en) * | 2008-04-15 | 2008-09-03 | 泰州口岸船舶有限公司 | Ship manhole cover protecting device |
| CN201756172U (en) * | 2010-08-24 | 2011-03-09 | 大连船舶重工集团有限公司 | Process unit for protecting safety of deck constructers |
| CN104828206A (en) * | 2015-05-13 | 2015-08-12 | 广西梧州运龙港船机械制造有限公司 | Fall-protection support for manhole of ship |
| CN107323616A (en) * | 2017-07-05 | 2017-11-07 | 海宁文硕科技咨询有限公司 | A kind of manhole protector of ship |
| CN207595187U (en) * | 2017-10-30 | 2018-07-10 | 上海江南长兴造船有限责任公司 | A kind of manhole protective device |
| CN208069952U (en) * | 2018-03-28 | 2018-11-09 | 金海智造股份有限公司 | A kind of multi-functional grille cover |
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| Publication number | Publication date |
|---|---|
| CN110155247A (en) | 2019-08-23 |
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