CN203866860U

CN203866860U - Falling prevention well

Info

Publication number: CN203866860U
Application number: CN201320876934.2U
Authority: CN
Inventors: 刘韶辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-12-30
Filing date: 2013-12-30
Publication date: 2014-10-08
Anticipated expiration: 2023-12-30

Abstract

The utility model discloses a falling prevention well which comprises a well body (1), a well cover (2) and a falling prevention device. The falling prevention device (3) comprises a falling prevention screen (41). The falling prevention screen (41) is arranged in the inner cavity of the well body (1) through two or more screen hooks (42). The well cover (2) is arranged on the upper end opening position of the well body (1) and is located on an annular step (11) of the well body (1). An anti-rotating groove (111) is formed in the annular step (11) of the well body (1), and a bump (23) matched with the anti-rotating groove (111) is arranged on the well cover (2). A lock mechanism is further arranged between the well body (1) and the well cover (2). The falling prevention well can prevent accidents of falling into a well generated due to the fact that the well cover is moved or stolen, prevents a pedestrian, an animal or other things from falling onto the bottom of the well when the pedestrian, the animal or the other things fall(s) into the well after the well cover cracks due to violence and other factors and plays a role in better protecting the pedestrians, animals and other things.

Description

Anti-fall well

Technical field

The utility model relates to the well of the function such as maintenance, blowdown that the pipeline passways such as a kind of sewer, water-supply line, city cable underground passage have earthward, and it is a kind of anti-fall well particularly.

Background technology

At present the well lid of urban pavement well (well of the function such as maintenance, blowdown that the pipeline passway such as sewer, water-supply line, city cable underground passage has earthward) coordinates an entirety of installation formation with well body, and well body is protected well hole by well lid.And in the time that well lid bears powerful external force (heavy-load automobile or flood) impact; very easily by cracked well lid, throw; make well head outdoor in outside; while discovery in time and repaired when this state appearance; serious potential safety hazard will be formed; hoistway mouth can not get protection on the one hand; rubbish or other objects fall into hoistway mouth; block sewer; make sewage can not get smooth excretion; pedestrian or vehicle, through likely being crashed into the danger in well, also may cause the facility in the passage of down-hole to destroy on the other hand.In this case, conventionally people can only well head or around some temporary signs are set to remind passing pedestrian, vehicle driver to provide against any misfortune, also have in well head ring inside and beat expansion bolt or beat hook, hang up again protective screening, although this method can prevent from crashing into accident to a certain extent, but, also there is drawback, the one, protective screening rainwater wash away lower easily from hook come off, the 2nd, the bolt of well head or hook are exposed to outside affects well operations under the maintenance personal of well body, makes troubles to operation; Need a large amount of people's strength and material resources, safeguarded because of being provided with in time often, and cause all falling accidents.

Summary of the invention

The utility model provides a kind of anti-fall well for overcoming the above-mentioned deficiency of prior art, and it can prevent that well lid is moved or be stolen, is also unlikely to allow well lid overturn under external force, in case falling stop well event occurs; At well lid by violence etc. because after breaking, when people, animal or other thing are fallen in well, can not crash into again shaft bottom, pedestrian, animal etc. are played a very good protection.

The technical solution of the utility model is: a kind of anti-fall well, and it comprises well body, well lid and anti-drop device; Well lid is arranged on the upper port place of well body; Anti-drop device comprises anti-drop net, and anti-drop net is arranged on well body and is arranged in the inner chamber of well body; Between described well body and well lid, be also provided with anti-rotation structure, on the ring-shaped step of well body, be provided with anti-rotation groove, well lid is provided with and the projection that has anti-rotation groove to match; Between described well body and well lid, be also provided with retaining mechanism, retaining mechanism comprises locking pull bar and tongue bolt, and locking pull bar is installed in the tie rod hole having on well lid, and one end of tongue bolt is connected with locking pull rod screw; The inwall of the well body position corresponding with tongue bolt is provided with lock hole, and the other end of tongue bolt can screw in lock hole.

The further technical scheme of the utility model is: described anti-drop net is arranged in the inner chamber of well body by plural net hook; One end of net hook is connected on the inwall of well body, and its other end is provided with hook-shape structure, and the hook-shape structure place of net hook is also provided with a torsion spring that can seal hook-shape structure opening.

The utility model further technical scheme is: described anti-drop net is 30 to 50 centimetres apart from the upper port of well body.

The utility model further technical scheme is: the cross section of the inner chamber of described well body is circle, ellipse or polygon, and well body inwall is provided with step surface, large little under its inner chamber.

The utility model also further technical scheme is: in described well body, be provided with near the exit position, upper end of well body the ring-shaped step extending to centre of being convenient to install well lid; Well lid is arranged on the upper port place of well body and is positioned on the ring-shaped step of well body.

The further technical scheme of the utility model is: the other end of tongue bolt is provided with a wedge shape step surface; On well body corresponding to lock hole place along the position of tongue bolt precession and the inwall smooth excessiveness of well body, its rear side is provided with a shoulder block.

The further technical scheme of the utility model is: well lid is the overall structure forming by casting; Or being provided with frame and the interior muscle of metal, the filling part in it is concrete structure; Or monolithic reinforced-concrete structures; Well lid upper surface is provided with anti-slip grid, is also provided with lifting eye on well lid.

The utility model compared with prior art has following features:

1. between well body and well lid, be also provided with anti-rotation structure and retaining mechanism matches, can prevent that well lid is moved or stolen, be also unlikely to allow well lid overturn under external force, in case falling stop well event occurs;

At well lid by violence etc. because after breaking, when people, animal or other thing are fallen in well, anti-drop net can make pedestrian, animal etc. can not crash into again shaft bottom, and pedestrian, animal etc. are played a very good protection.

3. anti-drop net is connected on well body by the net hook with torsion spring, can dismantle, and does not affect the personnel's operation of going into the well.

4. the utility model is simple in structure, and convenient and reliable operation is not changing on the basis of surface well body function and basic structure, and the deficiency that existing well body structure is existed is improved.

5. because Manhole cover lock pull bar countersunk head is general interior hexagon, only need i.e. detachable (certainly, also locking pull bar can be designed to special-shaped counterbore, use special tool dismounting) of general general utility tool.

Below in conjunction with the drawings and specific embodiments, detailed structure of the present utility model is further described.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the A-A cut-away view of Fig. 1;

Fig. 3 is the B-B cut-away view of Fig. 1;

Fig. 4 is perspective view of the present utility model;

Fig. 5 is the C-C cut-away view of Fig. 2;

Fig. 6 is that Fig. 5 is along the enlarged drawing within the scope of D line;

The state diagram of locking mechanism when Fig. 7 is tongue bolt back-out lock hole;

Fig. 8 is the perspective view of the utility model anti-drop net;

Fig. 9 is the structural representation of the utility model net hook;

Figure 10 is the structural representation of well body of the present utility model;

Figure 11 is the perspective view of well body of the present utility model;

Figure 12 is the structural representation of well lid of the present utility model;

Figure 13 is the top view of Figure 12;

Figure 14 is the perspective view of well lid of the present utility model;

Figure 15 is the perspective view at another visual angle of well lid of the present utility model;

Figure 16 is the structural representation of tongue bolt of the present utility model;

Figure 17 is the right diagram of Figure 16;

Figure 18 is the perspective view of tongue bolt of the present utility model;

Figure 19 is the structural representation of locking machine of the present utility model;

Figure 20 is state diagram when someone falls into well of the present utility model in use.

Detailed description of the invention

As Figure 1-4, a kind of anti-fall well, it comprises well body 1, well lid 2 and anti-drop device; The inner chamber of well body 1 is cylindrical, inside and outside well body 1, all can be provided with several step surfaces, make under its inner chamber large little, convenient maintenance, well body 1 can be the individual components of casting, then laying in wellhole on the ground, can be also by reinforced concrete prefabricated wellhole on the ground, and the interior exit position, upper end near well body 1 of well body 1 is provided with the ring-shaped step 11 extending to centre of being convenient to install well lid 2.

Well lid 2 entirety are round pie, its size adapts with upper port of well body 1 and (adapts with ring-shaped step 11 external diameters of the exit position, upper end of well body 1, ring-shaped step 11 is for holding well lid 2), well lid 2 is arranged on the upper port place of well body 1 and is positioned on the ring-shaped step 11 of well body 1; Certainly, well lid 2 can also be other shapes such as ellipse, polygon with the cross section of well body 1, just passable as long as the shape of cross section of well lid 2 and well body 1 adapts, and is not limited to circle shown in the drawings; Well lid 2 can be the overall structure forming by casting, can be also frame and the interior muscle that is provided with metal, and the filling part in it is concrete structure, and it can also be monolithic reinforced-concrete structures; Well lid 2 upper surfaces are provided with anti-slip grid 21, are also provided with lifting eye 22 on well lid 2, are convenient to hook by hook-like part in lifting eye 22 in the time of maintenance, and well lid 2 is hung out.

Between well body 1 and well lid 2, be also provided with anti-rotation structure (as shown in Figure 10-15), on the ring-shaped step 11 of well body 1, be provided with anti-rotation groove 111, well lid 2 is provided with and the projection 23 that has anti-rotation groove 111 to match, in the time that well lid 2 is arranged on well body 1, projection 23 on well lid 2 is stuck in the anti-rotation groove 111 on the ring-shaped step 11 of well body 1, can prevent that like this well lid 2 from rotating.

Between well body 1 and well lid 2, be also provided with retaining mechanism, retaining mechanism comprises locking pull bar 31 and tongue bolt 32, locking pull bar 31 one end are the termination that is provided with inner hexagonal hole, its other end is provided with external screw thread, locking pull bar is installed in the tie rod hole 24 having on well lid 2, form latch-up structure for convenient with the inwall of well body 1, tie rod hole 24 is generally located at the edge near well lid 2, tongue bolt 32 global approximation cuboid bulks, its one end is provided with the screwed hole 321 matching with the screw thread locking on pull bar 31, the other end of tongue bolt 32 is provided with a wedge shape step surface 322, and tongue bolt 32 is threaded with the other end of locking pull bar 31 by the screwed hole 321 on it, the inwall of well body 1 position corresponding with tongue bolt 32 is provided with lock hole 12, on well body 1 corresponding to lock hole 12 places along the position of tongue bolt 32 precessions and the inwall smooth excessiveness of well body 1, its rear side is provided with a shoulder block 121, prevent that tongue bolt 32 from rotating excessive, when in the inner hexagonal hole from the termination of locking pull bar 31 by special tool (die nut) when spin locking pull bar 31, locking pull bar 31 drives tongue bolt 32 to rotate, the wedge shape step surface 322 of tongue bolt 32 is snapped in the lock hole 12 on well body 1 inwall (as Fig. 5-6, shown in 16-19), at this moment tongue bolt 32 has just hooked well body 1, continue to screw locking pull bar 31, because locking pull bar 31 is threaded connection relation with tongue bolt 32, so just can between the lock hole inwall on well lid 2 and well body 1, form very strong pulling force, well lid 2 can be locked on well body 1 tightly, like this in conjunction with anti-rotation structure, just can make well lid rotate, can not mention, well is played a very good protection, generation (for example can reduce the accidents such as pendant well) that can minimizing accident, can also protect well well lid not lose simultaneously, stolen (especially for metal well lid, in conventional art, well lid is often stolen by the people of some scavenges or other thief, cause municipal administration to destroy, even cause some serious vehicles, personnel's falling accident), need to split out well lid 2 time, as long as reverse rotation locking pull bar 31, in the lock hole 12 of the wedge shape step surface 322 that makes tongue bolt 32 from well body 1 inwall, exit (as shown in Fig. 5-6), just can hang and mention well lid 2.

Solve falling accident for entering some, its utility model is also provided with an anti-drop device, and anti-drop device 3 comprises anti-drop net 41, and anti-drop net 41 is flexible protective net, and its size and shape and well body 1 inner chamber adapt; Anti-drop net 41 is arranged on by plural net hook 42 in the inner chamber of well body 1 (as Figure 8-9), apart from the upper port of well body 1 50 centimetres of left and right (30 to 60 centimetres); One end of net hook 42 is connected on the inwall of well body 1, if well body 1 is concrete structure, so can be first by one end of net hook 42 in advance in the inwall of well body 1, its other end is provided with hook-shape structure, the hook-shape structure place of net hook 42 is also provided with a torsion spring 421 that can seal hook-shape structure opening, torsion spring 421 can be in the time that anti-drop net 41 be hung the hook-shape structure position of networking hook 42, the part that articulates of anti-drop net 41 is locked in the hook-shape structure position of net hook, to prevent anti-drop net 41 slippages, when dismounting anti-drop net 41, as long as depress torsion spring 421, just anti-drop net can be taken out; As shown in figure 20, anti-drop device can be with preventing falling accident, and in the time that well lid is destroyed or loses, people are not little when falling in well, and anti-drop net 41 can be held people, prevents from being enclosed in shaft bottom and major accident occurs.

The utility model is not limited to above-mentioned concrete structure, as long as having within the pipeline well (well of the function such as maintenance, blowdown that the pipeline passway such as sewer, water-supply line, city cable underground passage has earthward) of anti-rotation structure basic identical with the utility model or that be equal to, retaining mechanism or anti-drop device just drops on protection domain of the present utility model.

Claims

1. an anti-fall well, it comprises well body (1) and well lid (2); Well lid (2) is arranged on the upper port place of well body (1); It is characterized in that: it also comprises anti-drop device, anti-drop device (3) comprises anti-drop net (41), and anti-drop net (41) is arranged on well body (1) goes up and be arranged in the inner chamber of well body (1); Between described well body (1) and well lid (2), be also provided with anti-rotation structure, on the ring-shaped step (11) of well body (1), be provided with anti-rotation groove (111), well lid (2) is provided with and the projection (23) that has anti-rotation groove (111) to match; Between described well body (1) and well lid (2), be also provided with retaining mechanism, retaining mechanism comprises locking pull bar (31) and tongue bolt (32), locking pull bar is installed in the tie rod hole (24) having on well lid (2), and one end of tongue bolt (32) is threaded with locking pull bar (31); The inwall of well body (1) position corresponding with tongue bolt (32) is provided with lock hole (12), and the other end of tongue bolt (32) can screw in lock hole (12).

2. anti-fall well according to claim 1, is characterized in that: described anti-drop net (41) is arranged in the inner chamber of well body (1) by plural net hook (42); One end of net hook (42) is connected on the inwall of well body (1), and its other end is provided with hook-shape structure, and the hook-shape structure place of net hook (42) is also provided with a torsion spring (421) that can seal hook-shape structure opening.

3. anti-fall well according to claim 1 and 2, is characterized in that: described anti-drop net (41) is 30 to 50 centimetres apart from the upper port of well body (1).

4. anti-fall well according to claim 1 and 2, is characterized in that: the cross section of the inner chamber of described well body (1) is circle, ellipse or polygon, and well body (1) inwall is provided with step surface, large little under its inner chamber.

5. anti-fall well according to claim 1 and 2, is characterized in that: in described well body (1), be provided with near the exit position, upper end of well body (1) ring-shaped step (11) extending to centre of being convenient to install well lid (2); Well lid (2) is arranged on the upper port place of well body (1) and is positioned on the ring-shaped step (11) of well body (1).

6. anti-fall well according to claim 1 and 2, is characterized in that: the other end of described tongue bolt (32) is provided with a wedge shape step surface (322); Well body (1) is upper to be located along the position of tongue bolt (32) precession and the inwall smooth excessiveness of well body (1) corresponding to lock hole (12), and its rear side is provided with a shoulder block (121).

7. anti-fall well according to claim 1 and 2, is characterized in that: the overall structure of described well lid (2) for forming by casting; Or being provided with frame and the interior muscle of metal, the filling part in it is concrete structure; Or monolithic reinforced-concrete structures; Well lid (2) upper surface is provided with anti-slip grid (21), is also provided with lifting eye (22) on well lid (2).