CN113818490B - Hydropower station well and pit type limited space entry prevention device - Google Patents
Hydropower station well and pit type limited space entry prevention device Download PDFInfo
- Publication number
- CN113818490B CN113818490B CN202111085319.5A CN202111085319A CN113818490B CN 113818490 B CN113818490 B CN 113818490B CN 202111085319 A CN202111085319 A CN 202111085319A CN 113818490 B CN113818490 B CN 113818490B
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- Prior art keywords
- connecting rod
- spherical
- lock
- cover plate
- clamping block
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1427—Locking devices
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/14—Covers for manholes or the like; Frames for covers
- E02D29/1481—Security devices, e.g. indicating unauthorised opening
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a hydropower station well and pit type limited space anti-entry device, which comprises a cover plate (1), wherein the cover plate (1) comprises a cover body (9), a lock (2) is arranged in the cover body (9), a rotating handle (3) is arranged on the upper side of the lock (2), a horizontal first connecting rod (4) is arranged on the lower side of the lock (2), a first spherical clamping block (6) is arranged on one side of the first connecting rod (4) through a second connecting rod (5), and a second spherical clamping block (8) is arranged on the other side of the first connecting rod (4) through a third connecting rod (7); the lower part of the cover plate (1) is provided with an annular frame (10) corresponding to the cover plate (1). The locking device has a locking function, and can prevent operators from entering limited space by mistake or privately without approval. The invention has simple structure and stable performance.
Description
Technical Field
The invention relates to an anti-entry device, in particular to an anti-entry device for limited spaces such as a hydropower station well and a pit.
Background
The inside a plurality of finite spaces that exist in the existing hydropower station, the finite space is closed or partially closed, the finite space is relatively isolated from the outside, an access is narrow, an operator cannot work for a long time, natural ventilation is poor, toxic and harmful or insufficient oxygen content space is easy to cause, the finite space has potential safety hazards, and therefore the operator generally needs to be audited to enter the finite space.
Disclosure of Invention
The invention aims to provide a hydropower station well and pit limited space entry prevention device. The locking device has a locking function, and can prevent operators from entering limited space by mistake or privately without approval.
The invention has a technical scheme that: a hydropower station well and pit type limited space entering prevention device comprises a cover plate, wherein the cover plate comprises a cover body, a lock is arranged in the cover body, a rotating handle is arranged on the upper side of the lock, a horizontal first connecting rod is arranged on the lower side of the lock, a first spherical clamping block is arranged on one side of the first connecting rod through a second connecting rod, and a second spherical clamping block is arranged on the other side of the first connecting rod through a third connecting rod; the lower part of the cover plate is provided with an annular frame corresponding to the cover plate, the handle is rotated to drive the first connecting rod, and then the first spherical clamping block on the second connecting rod and the second spherical clamping block of the third connecting rod are respectively clamped into two different positions of the annular frame, so that the cover plate and the annular frame are locked.
In the hydropower station well and pit type limited space anti-entry device, the annular frame comprises a connecting section at the upper end, a spherical opening is arranged in the connecting section, an arc-shaped groove corresponding to the first spherical clamping block and the second spherical clamping block is arranged on one side of the spherical opening, a spherical locking groove is arranged on the inner side of the arc-shaped groove through a locking hole, an upper connecting sheet and a lower connecting sheet are respectively arranged on the upper side and the lower side of the spherical locking groove, and a power supply is arranged at the upper end of the upper connecting sheet; the linkage segment lower part is equipped with the installation section, evenly is equipped with the mounting hole on the installation section, and the installation section surface still is equipped with the siren that is located lower connection piece lower part, and the siren links to each other with the pressure contact of spherical locking groove opening part.
The utility model provides an among aforementioned hydropower station well, hole class finite space entering prevention device, the hasp hole be vertical through-hole, be equipped with the hasp groove corresponding with the hasp hole on the apron, the hasp inslot is equipped with the hasp, the terminal surface is the inclined plane under the hasp, the hasp upper end is equipped with the combination section for specific shape, when carrying out the locking of apron, rotate the hasp through the specific instrument that corresponds with the combination section, make the hasp lower extreme be close to spherical locking groove, when carrying out opening of apron, rotate the hasp through the specific instrument that corresponds with the combination section, make the hasp lower extreme keep away from spherical locking groove.
In the hydropower station well and pit type limited space anti-entry device, the first spherical clamping block and the second spherical clamping block are spherical clamping blocks made of metal materials.
In the hydropower station well and pit type limited space anti-entry device, the lock is a cylindrical lock, the annular frame is provided with a locking plate corresponding to the lock, and the locking plate is positioned on the lower side of the arc-shaped groove.
In the hydropower station well and pit type limited space entry prevention device, the upper end of the cover body is provided with the lifting handle.
In the hydropower station well and pit type limited space anti-entry device, the upper end of the third connecting rod is provided with the sliding block through the fixing rod, and the cover body is provided with the sliding groove corresponding to the sliding block.
In the hydropower station well and pit type limited space entering prevention device, the lock is fixedly connected with the first connecting rod, and the first connecting rod, the second connecting rod and the third connecting rod are movably connected through the first rotating pin and the second rotating pin respectively.
Compared with the prior art, the invention has the following beneficial effects:
1. it is through setting up the tool to lock in the apron, and the tool to lock lower part is equipped with first connecting rod, drives first connecting rod motion through the tool to lock to make the first spherical fixture block of second connecting rod and the second spherical fixture block of third connecting rod combine with the annular frame of apron downside, at this moment the tool to lock combines with the lockplate, realizes the locking, not only can prevent to lap the offset and lead to losing, more can prevent that the operation personnel from going into by mistake or not examining and approving privately the finite space who gets into the hydropower station.
2. Through set up the hasp hole corresponding with the hasp on the apron in the arc type groove inboard, can know through the hasp whether the apron rotates when the locking and targets in place, if produce the upwards sound of beating of padlock, can know the locking and accomplish, and the hasp can lock first spherical fixture block and second spherical fixture block, even take the key, it also can't open the apron not know to rotate the hasp, and the padlock is the design of nonstandard, and general instrument can't rotate, can promote the barrier propterty of apron.
3. When first spherical fixture block and the spherical fixture block of second rotated to spherical locking inslot, because connection piece and lower connection piece are equipped with respectively on the spherical locking inslot to first spherical fixture block and the spherical fixture block of second all are metal fixture blocks, can electrically conduct, can accomplish the connection of circuit like this, if someone is when upwards carrying the pull-up apron by force, pressure contact can be touched to second connecting rod and third connecting rod, produces the alarm, plays the warning effect to the power station staff.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a portion of the ring frame of the present invention;
FIG. 3 is a partial schematic view of the cover plate of the present invention;
fig. 4 is a schematic view of the structure of the locking part of the present invention.
The labels in the figures are: 1-cover plate, 2-lock, 3-turning handle, 4-first connecting rod, 5-second connecting rod, 6-first spherical clamping block, 7-third connecting rod, 8-second spherical clamping block, 9-cover body, 10-annular frame, 11-connecting section, 12-spherical opening, 13-arc-shaped groove, 14-upper connecting sheet, 15-lower connecting sheet, 16-mounting section, 17-mounting hole, 18-alarm, 19-locking plate, 21-lifting handle, 22-power supply, 23-slider, 24-fixing rod, 25-sliding groove, 26-pressure contact sheet, 27-first turning pin, 28-second turning pin, 29-spherical locking groove, 30-locking hole, 31-locking groove and 32-lock catch.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example 1. A hydropower station well and pit type limited space entering prevention device is shown in figures 1-4 and comprises a cover plate 1, wherein the cover plate 1 comprises a cover body 9, a lock 2 is arranged in the cover body 9, a rotating handle 3 is arranged on the upper side of the lock 2, a horizontal first connecting rod 4 is arranged on the lower side of the lock 2, a first spherical clamping block 6 is arranged on one side of the first connecting rod 4 through a second connecting rod 5, and a second spherical clamping block 8 is arranged on the other side of the first connecting rod 4 through a third connecting rod 7; the lower part of the cover plate 1 is provided with an annular frame 10 corresponding to the cover plate 1, the handle 3 is rotated to drive the first connecting rod 4, and then the first spherical clamping block 6 on the second connecting rod 5 and the second spherical clamping block 8 of the third connecting rod 7 are respectively clamped into two different positions of the annular frame 10, so that the cover plate 1 and the annular frame 10 are locked.
The annular frame 10 comprises a connecting section 11 at the upper end, a spherical opening 12 is arranged in the connecting section 11, an arc-shaped groove 13 corresponding to the first spherical clamping block 6 and the second spherical clamping block 8 is arranged on one side of the spherical opening 12, a spherical locking groove 29 is arranged on the inner side of the arc-shaped groove 13 through a locking hole 30, an upper connecting sheet 14 and a lower connecting sheet 15 are respectively arranged on the upper side and the lower side of the spherical locking groove 29, and a power supply 22 is arranged at the upper end of the upper connecting sheet 14; the lower part of the connecting section 11 is provided with a mounting section 16, mounting holes 17 are uniformly formed in the mounting section 16, the surface of the mounting section 16 is also provided with an alarm 18 positioned at the lower part of the lower connecting sheet 15, and the alarm 18 is connected with a pressure contact 26 at the opening of a spherical locking groove 29.
The first spherical fixture block 6 and the second spherical fixture block 8 are spherical fixture blocks made of metal.
The lockset 2 is a cylindrical lockset, a locking plate 19 corresponding to the lockset 2 is arranged on the annular frame 10, and the locking plate 19 is positioned at the lower side of the arc-shaped groove 13.
The upper end of the cover body 9 is provided with a lifting handle 21.
The upper end of the third connecting rod 7 is provided with a slide block 23 through a fixing rod 24, and the cover body 9 is provided with a slide groove 25 corresponding to the slide block 23.
The lockset 2 is fixedly connected with the first connecting rod 4, and the first connecting rod 4 is movably connected with the second connecting rod 5 and the third connecting rod 7 through a first rotating pin 27 and a second rotating pin 28 respectively.
The use method of the invention comprises the following steps: firstly, an annular frame 10 is installed at the upper end of a limited space, the annular frame 10 comprises an installation section 16 at the lower part, installation holes 17 are uniformly distributed on the installation section 16, the fixing of the annular frame 10 can be realized through the matching of expansion bolts and the installation holes 17, when the limited space is sealed by a cover plate 1, then the cover plate 1 is placed at the upper end of the annular frame 10 through a lifting handle 21 at the upper part of the cover plate 1, the lower end of an inclined plane at the lower end of a lock catch 32 is rotated to be close to a spherical locking groove 29 by a specific tool, the shape of the upper end of the lock catch 32 and the specific tool are non-standard products, the lock catch is designed by itself, so that a general tool cannot rotate the lock catch 32, then a key is inserted into the lock 2, a lock tongue is retracted into the lock 2, at the moment, a rotating handle 3 at the upper end of the lock 2 is held to rotate, the rotating handle 3 can drive a first connecting rod 4 to rotate through the lock 2, the first connecting rod 4, the first connecting rod 5, the second connecting rod 5 and a third connecting rod 7 are movably connected with each other, the first connecting rod 4 can drive the second connecting rod 5 and the third connecting rod 7 to rotate, the spherical opening and a spherical opening can gradually deepen the spherical opening of a spherical opening 6 and a spherical opening when the spherical opening of the spherical groove 6 and a spherical opening gradually increase the spherical opening when the fixture block 6 and a spherical opening gradually when the spherical opening are rotated to the spherical groove 13, in the process of moving to the spherical locking groove 29, the first spherical fixture block 6 and the second spherical fixture block 8 jack up the lock catch 32 to move upwards, after the first spherical fixture block 6 and the second spherical fixture block 8 move to the spherical locking groove 29, the lock catch 32 falls, and the sound represents that the locking is completed, the lock catch 32 can lock the first spherical fixture block 6 and the second spherical fixture block 8, so that the cover plate 1 cannot rotate, the upper connecting piece 14 and the lower connecting piece 15 are respectively arranged on the upper side and the lower side of the spherical locking groove 29, the first spherical fixture block 6 and the second spherical fixture block 8 are clamped between the upper connecting piece 14 and the lower connecting piece 15, at this time, the lock tongue of the lock 2 extends out to be combined with the locking plate 19 to realize the locking, the upper connecting piece 14 and the lower connecting piece 15 are elastic contact pieces, and the first spherical fixture block 6 and the second spherical fixture block 8 are spherical fixture blocks made of metal, the first spherical clamping block 6 and the second spherical clamping block 8 can play a role of conducting electricity, the upper side of the upper connecting sheet 14 is provided with a power supply 22, the lower side of the lower connecting sheet 15 is provided with an alarm 18, the alarm 18 is connected with a pressure contact piece 26 at the opening of a spherical locking groove 29, if someone does not allow the cover plate 1 to be directly pulled open, the second connecting rod 5 and the third connecting rod 7 can touch the pressure contact piece 26 to connect a circuit, the alarm 18 is triggered, when the cover plate 1 needs to be moved away, a lock catch 32 is rotated by a specific tool corresponding to a combining section to enable the lower end of the lock catch 32 to be far away from the spherical locking groove 29, then a lock tongue of the lock 2 is retracted into the lock 2 by a key, then the lock 2 at the lower part of the handle 3 is rotated to drive the first connecting rod 4 to rotate, so as to drive the first spherical clamping block 6 on the second connecting rod 5 and the second spherical clamping block 8 of the third connecting rod 7 to be separated from the annular frame 10, so that the cover plate 1 can be opened.
Claims (4)
1. The utility model provides a device is prevented getting into in limited space of hydropower station well, hole class which characterized in that: the novel lock comprises a cover plate (1), wherein the cover plate (1) comprises a cover body (9), a lock (2) is arranged in the cover body (9), a rotating handle (3) is arranged on the upper side of the lock (2), a horizontal first connecting rod (4) is arranged on the lower side of the lock (2), a first spherical clamping block (6) is arranged on one side of the first connecting rod (4) through a second connecting rod (5), and a second spherical clamping block (8) is arranged on the other side of the first connecting rod (4) through a third connecting rod (7); an annular frame (10) corresponding to the cover plate (1) is arranged at the lower part of the cover plate (1), the handle (3) is rotated by rotating, a lockset (2) at the lower part of the handle (3) can drive the first connecting rod (4), and then a first spherical clamping block (6) on the second connecting rod (5) and a second spherical clamping block (8) on the third connecting rod (7) are respectively clamped into two different positions of the annular frame (10), so that the cover plate (1) and the annular frame (10) are locked, the annular frame (10) comprises a connecting section (11) at the upper end, a spherical opening (12) is arranged inside the connecting section (11), an arc-shaped groove (13) corresponding to the first spherical clamping block (6) and the second spherical clamping block (8) is arranged on one side of the spherical opening (12), a spherical locking groove (29) is arranged on the inner side of the arc-shaped groove (13) through a locking hole (30), the depth of the arc-shaped groove (13) is gradually deepened towards the spherical locking groove (29), the total length of the first connecting rod (4), the second connecting rod (5) and the third connecting rod (7) can be increased in the upper end and the upper end of the spherical connecting sheet (14) and the upper end (14) and the lower connecting sheet (14) are arranged on the upper end of the spherical connecting sheet (14) respectively; the lower part of the connecting section (11) is provided with a mounting section (16), mounting holes (17) are uniformly formed in the mounting section (16), the surface of the mounting section (16) is also provided with an alarm (18) positioned at the lower part of the lower connecting sheet (15), and the alarm (18) is connected with a pressure contact sheet (26) at the opening of the spherical locking groove (29); the novel lock is characterized in that the lock hole (30) is a vertical through hole, a lock groove (31) corresponding to the lock hole (30) is formed in the cover plate (1), a lock catch (32) is arranged in the lock groove (31), the lower end face of the lock catch (32) is an inclined face, a combination section in a specific shape is arranged at the upper end of the lock catch (32), when the cover plate (1) is locked, the lock catch (32) is rotated through a specific tool corresponding to the combination section, the lower end of the lock catch (32) is close to the spherical locking groove (29), when the cover plate (1) is opened, the lock catch (32) is rotated through a specific tool corresponding to the combination section, and the lower end of the lock catch (32) is far away from the spherical locking groove (29); the first spherical fixture block (6) and the second spherical fixture block (8) are made of metal; the lockset (2) is a cylindrical lockset, a locking plate (19) corresponding to the lockset (2) is arranged on the annular frame (10), and the locking plate (19) is positioned at the lower side of the arc-shaped groove (13).
2. A hydropower station well, pit or the like confined space access prevention device according to claim 1, characterized in that: the upper end of the cover body (9) is provided with a lifting handle (21).
3. A hydropower station well, pit or the like confined space access prevention device according to claim 1, characterized in that: the upper end of the third connecting rod (7) is provided with a sliding block (23) through a fixing rod (24), and the cover body (9) is provided with a sliding groove (25) corresponding to the sliding block (23).
4. A hydropower station well, pit or the like confined space access prevention device according to claim 1, characterized in that: the lockset (2) is fixedly connected with the first connecting rod (4), and the first connecting rod (4) is movably connected with the second connecting rod (5) and the third connecting rod (7) through a first rotating pin (27) and a second rotating pin (28) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085319.5A CN113818490B (en) | 2021-09-16 | 2021-09-16 | Hydropower station well and pit type limited space entry prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085319.5A CN113818490B (en) | 2021-09-16 | 2021-09-16 | Hydropower station well and pit type limited space entry prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113818490A CN113818490A (en) | 2021-12-21 |
| CN113818490B true CN113818490B (en) | 2023-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111085319.5A Active CN113818490B (en) | 2021-09-16 | 2021-09-16 | Hydropower station well and pit type limited space entry prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113818490B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074724A (en) * | 1993-01-20 | 1993-07-28 | 阎乃京 | Rotary well covering device |
| CA2612150A1 (en) * | 2007-04-18 | 2008-10-18 | Mcgard Llc | Security key tool for manhole access opening security device |
| CN203066110U (en) * | 2012-12-05 | 2013-07-17 | 中国十七冶集团有限公司 | Internal-locking type anti-theft safe well lid |
| CN203361204U (en) * | 2013-07-18 | 2013-12-25 | 吴江市黎里建兴铸件厂 | Anti-theft inspection well cover |
| CN113123370A (en) * | 2021-04-23 | 2021-07-16 | 安徽力杰新材料有限公司 | Stainless steel well lid with resilience self-locking structure and locking method thereof |
-
2021
- 2021-09-16 CN CN202111085319.5A patent/CN113818490B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074724A (en) * | 1993-01-20 | 1993-07-28 | 阎乃京 | Rotary well covering device |
| CA2612150A1 (en) * | 2007-04-18 | 2008-10-18 | Mcgard Llc | Security key tool for manhole access opening security device |
| CN203066110U (en) * | 2012-12-05 | 2013-07-17 | 中国十七冶集团有限公司 | Internal-locking type anti-theft safe well lid |
| CN203361204U (en) * | 2013-07-18 | 2013-12-25 | 吴江市黎里建兴铸件厂 | Anti-theft inspection well cover |
| CN113123370A (en) * | 2021-04-23 | 2021-07-16 | 安徽力杰新材料有限公司 | Stainless steel well lid with resilience self-locking structure and locking method thereof |
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| Publication number | Publication date |
|---|---|
| CN113818490A (en) | 2021-12-21 |
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