CN110924441A - Inspection well anti-falling device - Google Patents
Inspection well anti-falling device Download PDFInfo
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- CN110924441A CN110924441A CN201911302362.5A CN201911302362A CN110924441A CN 110924441 A CN110924441 A CN 110924441A CN 201911302362 A CN201911302362 A CN 201911302362A CN 110924441 A CN110924441 A CN 110924441A
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- falling
- protection device
- fall protection
- inspection well
- wall
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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
- E02D29/127—Manhole shafts; Other inspection or access chambers; Accessories therefor with devices for impeding fall or injuries of persons
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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)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses an inspection well anti-falling device which comprises an annular supporting structure, wherein the annular supporting structure is formed by encircling at least two arc-shaped supporting sections and is fixedly arranged on the inner wall of an inspection well; a fall arrest plate removably mounted within the annular support structure. The invention has the beneficial effects that: the anti-falling device can be installed in an inspection well with an inclined hole wall, is convenient to install and firm to install, has anti-falling supporting performance far higher than that of similar products, is long in service life, and greatly reduces the maintenance cost of the inspection well.
Description
Technical Field
The invention belongs to the technical field of wellhead anti-falling devices, and particularly relates to an inspection well anti-falling device.
Background
In the construction of urban infrastructures, power supply, water supply, drainage, pollution discharge, communication, cable television, gas pipes, street lamp lines and the like are generally arranged in low-level pipe networks, and inspection wells are generally built at certain distances of straight pipe sections, at pipe intersections, at bends, at pipe diameters or at gradient changing positions in order to facilitate installation and maintenance of the underground infrastructures.
In recent years, the pedestrian often takes place because of the accident that the inspection shaft falls into to the miss, to the measure of installing anti-falling device at the inspection shaft well head more and more obtain appreciating, in prior art, the most common means is directly preventing at the well head installation and prevents weighing down the net, because the net gape of preventing weighing down the net is great, not only can't prevent debris such as fragment of brick, stone from falling into, moreover along with time lapse, prevent weighing down the net can be ageing, its support intensity can descend, can not bear the weight that the human body falls completely, there is great potential safety hazard.
Disclosure of Invention
In view of the above, the invention provides an inspection well anti-falling device, which can be installed in an inspection well mouth with an inclined hole wall and has excellent anti-falling performance.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides an inspection shaft anti-falling device which the key lies in, includes:
the annular supporting structure is formed by encircling at least two arc-shaped supporting sections and is fixedly arranged on the inner wall of the inspection well;
a fall arrest plate removably mounted within the annular support structure.
By adopting the structure, the calibers of most inspection wells are gradually reduced from bottom to top, namely the hole walls are inclined, so that the annular supporting structure is formed by adopting an assembling mode, the annular supporting structure can be conveniently and fixedly installed on the inclined inner wall of the inspection well, and meanwhile, the anti-falling disc in a solid state form is installed in the annular supporting structure.
Preferably, the method comprises the following steps: the arc supports the section and includes inner wall installation section, and the lower extreme of inner wall installation section is equipped with along its radial inside horizontal supporting bench that extends, it has the bolt fastening hole to distribute on the inner wall installation section. By adopting the structure, the arc-shaped supporting section can be fixed on the inner wall of the inspection well through the expansion bolts, the installation is convenient, the horizontal supporting platform can be used for supporting the anti-falling plate, and the supporting strength is high.
Preferably, the method comprises the following steps: the inner wall mounting section is arranged obliquely inwards relative to the horizontal supporting table. By adopting the structure, the installation structure can be adapted to an inclined well wall, so that the installation of the annular supporting structure is firmer and more reliable.
Preferably, the method comprises the following steps: one end of the inner wall mounting section is provided with a positioning splicing part extending outwards, and the other end of the inner wall mounting section is provided with a positioning splicing groove matched with the positioning splicing part; and the positioning splicing parts of two adjacent arc-shaped support sections are fixedly connected with the positioning splicing grooves through first bolts. By adopting the structure, after the annular supporting structure is enclosed in the well in an assembling mode, all the arc-shaped supporting sections in the circumferential direction can be fixedly connected into a whole, the stability of the installation of the annular supporting structure with lifting force is improved, and the anti-falling plate also has a better supporting effect.
Preferably, the method comprises the following steps: the horizontal supporting table is provided with a locking notch, the anti-falling plate is provided with a positioning column extending downwards at a position corresponding to the locking notch, the tail end of the positioning column is provided with an anti-falling clamping tongue, and the width of the anti-falling clamping tongue is smaller than that of the locking notch. By adopting the structure, when the anti-falling plate is installed, the positioning column penetrates through the locking notch, then the anti-falling plate is rotated to enable the anti-falling clamping tongue to abut against the lower surface of the horizontal supporting table, so that the anti-falling plate can be limited from being separated upwards, the installation reliability of the anti-falling plate is ensured, and the anti-falling plate can be prevented from being loosened when rainwater flows backwards.
Preferably, the method comprises the following steps: through holes are distributed on the anti-falling plate. By adopting the structure, the permeability of the inspection well can be ensured.
Preferably, the method comprises the following steps: the anti-falling plate is provided with a handle, and two ends of the handle are hinged to two ends of the anti-falling plate in the diameter direction. By adopting the structure, the anti-falling plate is convenient to lift and rotate during manual disassembly and assembly.
Preferably, the method comprises the following steps: the handle is of a semicircular structure, and an avoiding groove matched with the handle is arranged on the edge of the anti-falling plate. By adopting the structure, the structure of the anti-falling plate can be more compact.
Preferably, the method comprises the following steps: and a rubber pad is arranged between the horizontal supporting platform and the anti-falling plate. By adopting the structure, a certain buffering and damping effect can be achieved, and the anti-falling plate can be fastened more tightly at the position of the locking notch by virtue of the elasticity of the rubber pad.
Preferably, the method comprises the following steps: the positioning splicing part and the positioning splicing groove are arranged on the inner side of the inner wall mounting section. By adopting the structure, when the arc-shaped supporting sections are convenient to assemble, the positioning splicing parts are embedded into the positioning splicing grooves.
Compared with the prior art, the invention has the beneficial effects that:
the inspection well anti-falling device provided by the invention can be installed in an inspection well with an inclined hole wall, is convenient to install and firm to install, has anti-falling supporting performance far higher than that of similar products, is long in service life, and greatly reduces the maintenance cost of the inspection well.
Drawings
FIG. 1 is a schematic view of the fall arrest device;
FIG. 2 is an exploded view of the fall arrest device;
FIG. 3 is a schematic structural view of an annular support structure;
FIG. 4 is a schematic structural view of an arcuate support section;
FIG. 5 is a schematic structural view of the fall arrest plate;
FIG. 6 is a reference view of the anti-fall device installed in the manhole in use;
fig. 7 is a partial enlarged view of the point i in fig. 6.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in figures 1, 2 and 6, the structure of the anti-falling device for the inspection well mainly comprises an annular supporting structure A and an anti-falling plate 2, wherein when the anti-falling device is arranged in the inspection well 7, the annular supporting structure A is fixedly arranged on the inner wall of the inspection well 7 and is used for supporting the anti-falling plate 2.
The wall of a well of inspection shaft 7 has certain inclination, and well head bore diameter is less than inside bore diameter promptly, can't directly put into the bearing structure of a full circle ring form, so annular bearing structure A surrounds by two at least arc support sections 1 and forms, adopts the mode of assembling promptly to constitute, can make things convenient for the workman with its fixed mounting on the slope inner wall of inspection shaft 7. In order to reasonably control the weight of each arc-shaped supporting section 1, the annular supporting structure A in the embodiment is formed by surrounding 6 arc-shaped supporting sections 1.
As shown in fig. 3 and 4, the arc-shaped supporting section 1 includes an inner wall mounting section 1a and a horizontal supporting platform 1b extending radially inward at the lower end of the inner wall mounting section 1a, wherein bolt fixing holes 1c are distributed on the inner wall mounting section 1a, and the arc-shaped supporting section 1 can be fixed on the side wall of the inspection well 7 by passing bolts 6 through the bolt fixing holes 1 c. The inner wall installation section 1a is arranged in an inwards inclined mode relative to the horizontal supporting platform 1b, so that the outer side of the inner wall installation section 1a is adapted to the inclined well wall, and firmness and reliability of installation of the annular supporting structure A are guaranteed.
Inner wall installation section 1a one end is equipped with outside extension's location concatenation portion 1d, the other end is equipped with the location concatenation groove 1e that suits with location concatenation portion 1d, location concatenation portion 1d and location concatenation groove 1e all set up the inboard at inner wall installation section 1a, wherein be equipped with countersunk head bolt hole 1g on the location concatenation portion 1d, it is equipped with screw hole 1h to correspond countersunk head bolt hole 1g position on the location concatenation groove 1e, annular bearing structure A encloses the back in the well with the mode of assembling, utilize first bolt 3 can make each arc support section 1 fixed connection of circumference as an organic whole, in order to promote annular bearing structure A's reliability.
As shown in fig. 5, the anti-falling plate 2 is a disc structure, a locking notch 1f is arranged on a horizontal support platform 1b of the arc-shaped support section 1, a positioning column 2a extending downwards is arranged at a position corresponding to the locking notch 1f on the lower side of the anti-falling plate 2, the positioning columns 2a are uniformly distributed along the circumferential direction at the lower edge position of the anti-falling plate 2, anti-falling locking tongues 2b extending outwards from the side parts of the positioning columns 2a are arranged at the tail ends of the positioning columns 2a, and a clamping space is formed between the anti-falling locking tongues 2b and the lower side of the anti-falling. When the anti-falling disc 2 is buckled on the annular supporting structure A, the positioning column 2a penetrates through the locking notch 1f, then the anti-falling disc 2 is rotated to enable the anti-falling clamping tongue 2b to abut against the lower surface of the horizontal supporting platform 1b to limit the anti-falling disc 2 to be separated upwards, so that the installation reliability of the anti-falling disc 2 is ensured, and the anti-falling disc 2 can be prevented from loosening when rainwater flows backwards.
Furthermore, in order to facilitate buckling the anti-falling plate 2 on the annular support structure of the well wall, the anti-falling clamping tongues 2b on the positioning columns 2a are of sheet structures and extend towards the tangential direction of the anti-falling plate 2.
Prevent weighing down the upside of dish 2 and be equipped with handle 4, handle 4 is half circle ring structure, prevents still being equipped with the groove 2d of dodging that suits with handle 4 on the upside border of weighing down dish 2, and the both ends of dodging groove 2d are equipped with articulated seat 2e, and the both ends of handle 4 are rotated and are installed on articulated seat 2e, carry when setting up handle 4 and can make things convenient for manual work dismouting and draw and rotate and prevent weighing down dish 2.
As shown in fig. 7, a rubber pad 5 is arranged between the horizontal support platform 1b and the fall-preventing plate 2, the rubber pad 5 can play a certain role of buffering and shock absorption, and the fall-preventing plate 2 can be fastened more tightly at the position of the locking notch 1f by the elasticity of the rubber pad 5.
As shown in fig. 4, in order to prevent the head of the bolt 6 from exposing the inner side surface of the arc-shaped supporting section 1, the bolt fixing hole 1c on the arc-shaped supporting section 1 is a countersunk hole, which can ensure that no interference occurs when the anti-falling plate 2 is installed downwards in the inspection well 7.
The solid anti-falling plate 2 is arranged in the inspection well 7, the anti-falling support performance is far higher than that of similar products, the service life is long, the maintenance cost of the inspection well 7 is greatly reduced, and meanwhile, the anti-falling plate has the technical advantages of convenience in installation, firmness in installation, easiness in production and manufacturing and the like, and has a good market application prospect.
In this embodiment, the arc-shaped supporting section 1 and the anti-falling plate 2 are both made of metal materials, preferably cast iron, so as to ensure the supporting performance of the anti-falling device, and the cast iron is also convenient for the arc-shaped supporting section 1 and the anti-falling plate 2 to be molded in a casting manner, so as to facilitate production and manufacturing.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. An inspection well anti-falling device is characterized by comprising:
the annular support structure (A) is formed by encircling at least two arc-shaped support sections (1) and is fixedly arranged on the inner wall of the inspection well;
a fall arrest disc (2) mounted in a removable manner within the annular support structure (A).
2. The manhole fall protection device of claim 1, wherein: the arc supports section (1) and includes inner wall installation section (1a), and the lower extreme of inner wall installation section (1a) is equipped with along its radial inside horizontal supporting bench (1b) that extends, it has bolt fastening hole (1c) to distribute on inner wall installation section (1 a).
3. The manhole fall protection device of claim 2, wherein: the inner wall mounting section (1a) is arranged obliquely inward relative to the horizontal support table (1 b).
4. The manhole fall protection device according to claim 3, wherein:
one end of the inner wall mounting section (1a) is provided with a positioning splicing part (1d) extending outwards, and the other end is provided with a positioning splicing groove (1e) matched with the positioning splicing part (1 d);
the positioning splicing parts (1d) of two adjacent arc-shaped supporting sections (1) are fixedly connected with the positioning splicing grooves (1e) through first bolts (3).
5. The manhole fall protection device according to claim 2, 3 or 4, wherein: the anti-falling device is characterized in that a locking notch (1f) is formed in the horizontal supporting platform (1b), a positioning column (2a) extending downwards is arranged at the position, corresponding to the locking notch (1f), of the anti-falling disc (2), an anti-falling clamping tongue (2b) is arranged at the tail end of the positioning column (2a), and the width of the anti-falling clamping tongue (2b) is smaller than that of the locking notch (1 f).
6. The manhole fall protection device according to claim 1, 2, 3 or 4, wherein: through holes (2c) are distributed on the anti-falling plate (2).
7. The manhole fall protection device according to claim 6, wherein: the anti-falling plate (2) is provided with a handle (4), and two ends of the handle (4) are hinged to two ends of the anti-falling plate (2) in the diameter direction.
8. The manhole fall protection device according to claim 7, wherein: the handle (4) is of a semicircular ring structure, and an avoiding groove (2d) matched with the handle (4) is formed in the edge of the anti-falling plate (2).
9. The manhole fall protection device according to claim 5, wherein: a rubber pad (5) is arranged between the horizontal supporting platform (1b) and the anti-falling plate (2).
10. The manhole fall protection device according to claim 4, wherein: the positioning splicing part (1d) and the positioning splicing groove (1e) are arranged on the inner side of the inner wall mounting section (1 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911302362.5A CN110924441A (en) | 2019-12-17 | 2019-12-17 | Inspection well anti-falling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911302362.5A CN110924441A (en) | 2019-12-17 | 2019-12-17 | Inspection well anti-falling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110924441A true CN110924441A (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911302362.5A Pending CN110924441A (en) | 2019-12-17 | 2019-12-17 | Inspection well anti-falling device |
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| Country | Link |
|---|---|
| CN (1) | CN110924441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267700A (en) * | 2020-10-15 | 2021-01-26 | 蒋海燕 | Plug-in type road inspection well operation protection frame |
-
2019
- 2019-12-17 CN CN201911302362.5A patent/CN110924441A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112267700A (en) * | 2020-10-15 | 2021-01-26 | 蒋海燕 | Plug-in type road inspection well operation protection frame |
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