阅读说明：本技术 一种水电站井、坑类有限空间防进入装置 (Hydropower station well and pit type limited space entry prevention device ) 是由 陈鸿峰 刘辉 龙长波 詹云龙 侯彬 徐鑫华 于 2021-09-16 设计创作，主要内容包括：本发明公开了一种水电站井、坑类有限空间防进入装置,包括盖板(1),所述的盖板(1)包括盖体(9),盖体(9)内部设有锁具(2),锁具(2)上侧设有转动握把(3),锁具(2)下侧设有水平的第一连杆(4),第一连杆(4)一侧通过第二连杆(5)设有第一球形卡块(6),第一连杆(4)另一侧通过第三连杆(7)设有第二球形卡块(8)；盖板(1)下部设有与盖板(1)相对应的环形框架(10)。它具有锁定功能,可以防止作业人员误入或者未经审批私自进入有限空间。本发明结构精简,性能稳定。(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.)

1. The utility model provides a limited space of power station well, pit class prevents access to device 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); the lower portion of the cover plate (1) is provided with an annular frame (10) corresponding to the cover plate (1), the handle (3) is rotated through rotation, the lockset (2) at the lower portion of the handle (3) can 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.

2. A hydropower station well, pit or the like confined space access prevention device according to claim 1, characterized in that: 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 piece (14) and a lower connecting piece (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 piece (15); the lower part of the connecting section (11) is provided with a mounting section (16), the mounting section (16) is evenly provided with mounting holes (17), 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).

3. A hydropower station well, pit or the like confined space access prevention device according to claim 2, characterized in that: hasp hole (30) be vertical through-hole, be equipped with on apron (1) with hasp hole (30) corresponding hasp groove (31), be equipped with hasp (32) in hasp groove (31), the terminal surface is the inclined plane under hasp (32), hasp (31) upper end is equipped with the combination section for specific shape, when carrying out the locking of apron (1), rotate hasp (32) through the specific instrument that corresponds with the combination section, make hasp (32) lower end be close to spherical locking groove (29), when carrying out opening of apron (1), rotate hasp (32) through the specific instrument that corresponds with the combination section, make hasp (32) lower end keep away from spherical locking groove (29).

4. A hydropower station well, pit or the like confined space access prevention device according to claim 1, characterized in that: the first spherical clamping block (6) and the second spherical clamping block (8) are spherical clamping blocks made of metal materials.

5. A hydropower station well, pit or the like confined space access prevention device according to claim 1, characterized in that: 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).

6. 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).

7. 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).

8. 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.

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

A plurality of limited spaces exist in the existing hydropower station, the limited spaces are closed or partially closed and are relatively isolated from the outside, an access is narrow, an operator cannot work in the limited spaces for a long time, natural ventilation is poor, toxic and harmful spaces or spaces with insufficient oxygen content are easy to cause, the limited spaces have potential safety hazards, so the operator generally needs to be checked and checked to enter the limited spaces, however, the operator accidentally enters the limited spaces or enters the limited spaces without authorization to cause suffocation death of the operator, the insufficient knowledge of the operator and the management loss of a management unit are one of the main reasons for causing the high death rate of accidents in the limited spaces, the grid plate or the cover plate is generally arranged at the upper end of the existing limited spaces to prevent the operator from mistakenly entering the limited spaces, but due to the lack of a locking device, the operator can open the grid plate or the cover plate to enter the limited spaces, often resulting in safety accidents.

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 the corresponding hasp hole of hasp in the arc wall inboard setting and apron, can know the apron through the hasp and rotate when the locking whether target in place, if produce the sound that the hasp upwards jumped, can know the locking and accomplish, and the hasp can lock first spherical fixture block and the spherical fixture block of second, even take the key, do not know to rotate the hasp and also can't open the apron, and the hasp is the nonstandard design, 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 the spherical locking inslot downside is equipped with connection piece and lower connection piece respectively to first spherical fixture block and the spherical fixture block of second all are the metal fixture block, can electrically conduct, can accomplish the connection of circuit like this, if someone when upwards carrying the pull apron by force, pressure contact can be touched to second connecting rod and third connecting rod, produces the police dispatch newspaper, 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 schematic view of a portion of the cover plate of the present invention;

fig. 4 is a schematic view of a latch according to the present invention.

The labels in the figures are: 1-cover plate, 2-lock, 3-turning handle, 4-first link, 5-second link, 6-first spherical clamping block, 7-third link, 8-second spherical clamping block, 9-cover body, 10-annular frame, 11-connecting section, 12-spherical opening, 13-arc-shaped groove, 14-upper connecting piece, 15-lower connecting piece, 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 piece, 27-first turning pin, 28-second turning pin, 29-spherical locking groove, 30-locking hole, 31-locking groove and 32-lock.

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 15; 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.

Hasp hole 30 be vertical through-hole, be equipped with the hasp groove 31 corresponding with hasp hole 30 on the apron 1, be equipped with hasp 32 in the hasp groove 31, the terminal surface is the inclined plane under the hasp 32, hasp 31 upper end is equipped with the combination section for specific shape, when carrying out the locking of apron 1, rotate hasp 32 through the specific instrument that corresponds with the combination section, make hasp 32 lower extreme be close to spherical locking groove 29, when carrying out opening of apron 1, rotate hasp 32 through the specific instrument that corresponds with the combination section, make hasp 32 lower extreme keep away from 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, the ring-shaped frame 10 is installed at the upper end of a limited space, the ring-shaped frame 10 comprises an installation section 16 at the lower part, installation holes 17 are uniformly distributed on the installation section 16, the ring-shaped frame 10 can be fixed through the matching of expansion bolts and the installation holes 17, when the limited space is sealed by the cover plate 1, then the cover plate 1 is placed at the upper end of the ring-shaped frame 10 through a lifting handle 21 at the upper part of the cover plate 1, the lower end of the inclined surface at the lower end of the lock catch 32 is rotated to be close to the 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 self, so that a general tool can not rotate the lock catch 32, then a key is inserted into the lock 2 to enable the lock tongue to retract into the lock 2, at the moment, the rotating handle 3 at the upper end of the lock 2 is held to rotate, the rotating handle 3 can drive the first connecting rod 4 to rotate through the lock 3, and the first connecting rod 4, the second connecting rod 5 and the third connecting rod 7 are movably connected, when the first connecting rod 4 rotates, the second connecting rod 5 and the third connecting rod 7 are driven to rotate, so that the first connecting rod 4 and the third connecting rod 7 are matched with the annular frame 10, the upper part of the annular frame 10 is provided with a connecting section 11, two spherical openings 12 are arranged in the connecting section 11, the side surfaces of the two spherical openings 12 are provided with arc-shaped grooves 13, the spherical openings 12 are the entering parts of the first spherical clamping block 6 and the second spherical clamping block 8, when the second connecting rod 5 and the third connecting rod 7 rotate, the first spherical clamping block 6 and the second spherical clamping block 8 enter the spherical openings 12, the depth of the arc-shaped grooves 13 is gradually deepened towards the direction of 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 is increased in the rotating process, so that the first spherical clamping block 6 and the second spherical clamping block 8 which enter the spherical clamping block can move to the spherical locking groove 29 along the arc 13, and in the moving process of the spherical locking groove 29, the first spherical clamping block 6 and the second spherical clamping block 8 can jack up the lock 32, the lock is enabled to move upwards, after the first spherical clamping block 6 and the second spherical clamping block 8 move to the spherical locking groove 29, the lock catch 32 falls, the sound represents that the locking is completed, the lock catch 32 can lock the first spherical clamping block 6 and the second spherical clamping block 8, so that the cover plate 1 cannot rotate, the upper side and the lower side of the spherical locking groove 29 are respectively provided with an upper connecting sheet 14 and a lower connecting sheet 15, the first spherical clamping block 6 and the second spherical clamping block 8 are clamped between the upper connecting sheet 14 and the lower connecting sheet 15, at the moment, the lock tongue of the lock 2 extends out to be combined with the locking plate 19 to realize the locking, the upper connecting sheet 14 and the lower connecting sheet 15 are elastic contact pieces, the first spherical clamping block 6 and the second spherical clamping block 8 are made of metal materials, the first spherical clamping block 6 and the second spherical clamping block 8 can play a conductive role, 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, alarm 18 links to each other with the pressure contact 26 of spherical locking groove 29 opening part, if someone is inadmissible, want direct when drawing open apron 1, second connecting rod 5 and third connecting rod 7 can touch pressure contact 26, the switch-on circuit, make alarm 18 trigger, when needs move away from apron 1, earlier through the specific instrument rotation hasp 32 that corresponds with the joint section, make hasp 32 lower extreme keep away from spherical locking groove 29, then make the spring bolt of tool to lock 2 to retract tool to lock 2 through the key, then rotate handle 3 through rotating, tool to lock 2 of rotating handle 3 lower part can drive first connecting rod 4 and rotate, thereby drive the second spherical fixture block 8 of first spherical fixture block 6 on the second connecting rod 5 and third connecting rod 7 and break away from in annular frame 10, thereby can open apron 1.