Anti-falling device for preventing water level in well from rising to jack well lid

Abstract

The utility model discloses an anti-falling device for preventing water level in a well from rising to jack a well lid, which comprises an anti-falling component, a floating component and a plurality of fasteners, and the anti-falling component is provided with a ventilation mechanism; the anti-falling assembly is detachably connected with the inner wall of the well through a plurality of fasteners, and the peripheral side of the anti-falling assembly is in sealed connection with the inner wall of the well; the floating assembly is connected with the anti-falling assembly through the limiting mechanism, the floating assembly is arranged below the anti-falling assembly, and the floating assembly can move upwards along with rising of the water level in the well so that the floating assembly can seal the ventilation mechanism. The floating assembly can float on the water surface and move upwards along with rising of the water level, so that the floating assembly abuts against the lower surface of the anti-falling assembly and seals the ventilation mechanism, the water level in the well does not rise any more when reaching the installation position of the anti-falling device, and the situation that a well lid of the inspection well jumps up and deviates due to water level swelling is avoided; and the risk of pedestrian falling is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal drainage, in particular to an anti-falling device for supporting a well cover to prevent the water level in the well from rising sharply. Background Art

[0002] Municipal water supply and drainage inspection wells are generally equipped with anti-fall nets to protect the lives of maintenance personnel or pedestrians. Existing anti-fall nets are generally made of nylon, vinylon, polyester or metal materials. Generally, only the load-bearing capacity is considered to meet the requirements, and no other functions are performed. In recent years, due to the sudden rise of water levels in drainage pipes, the manhole covers in low-lying areas have often jumped up and shifted. When the ground is flooded, the anti-fall net is damaged or not firmly fixed, the deviation of the manhole cover will pose a serious threat to the lives of pedestrians in the surrounding area. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides an anti-falling device for preventing the water level in the well from rising and supporting the manhole cover, which can prevent the manhole cover from jumping up and deflecting.

[0004] According to an embodiment of the utility model, an anti-falling device for preventing a well water level from rising suddenly and supporting a manhole cover comprises an anti-falling component, a floating component and a plurality of fasteners, wherein the anti-falling component is provided with a ventilation mechanism; the anti-falling component is detachably connected to the inner wall of the well via a plurality of the fasteners, and the peripheral side of the anti-falling component is sealedly connected to the inner wall of the well; the floating component is connected to the anti-falling component via a limiting mechanism, the floating component is arranged below the anti-falling component, and the floating component can move upward as the water level in the well rises, so that the floating component can seal the ventilation mechanism.

[0005] At least the following beneficial effects are achieved:

[0006] The anti-fall assembly is connected to the inner wall of the well through a plurality of fasteners, and the floating assembly is connected to the anti-fall assembly through a limiting mechanism, so that the entire anti-fall device is fixed in the well. When the water level in the well rises, the floating assembly floats on the water surface and moves upward with the rise of the water level. The water level in the well continues to rise, and the floating assembly will abut against the lower surface of the anti-fall assembly and seal the air permeable mechanism. Since the peripheral side of the anti-fall assembly is sealed with the inner wall of the well, the anti-fall device will seal the wellhead. When the water level in the well reaches the installation position of the anti-fall device, it will no longer rise, avoiding the jumping and displacement of the manhole cover due to the sudden rise of the water level in the drainage pipe, and reducing the risk of pedestrians falling.

[0007] According to some embodiments of the present invention, an elastic sealing sleeve is further included, and the elastic sealing sleeve is arranged between the peripheral side of the anti-falling component and the inner wall of the well.

[0008] According to some embodiments of the utility model, the limiting mechanism includes a guide column and two limiting blocks, the anti-falling component is provided with a first sliding hole, the first sliding hole passes through the anti-falling component up and down, the floating component is provided with a second sliding hole, the second sliding hole passes through the floating component up and down, the guide column is penetrated by the first sliding hole and the second sliding hole, the two limiting blocks can be detachably connected to the two ends of the guide column, and the two limiting blocks can respectively abut against the upper surface of the anti-falling component and the lower surface of the floating component.

[0009] According to some embodiments of the present utility model, the limit block is threadedly connected to the guide column.

[0010] According to some embodiments of the utility model, the anti-fall component is disc-shaped, a plurality of positioning grooves are provided on the circumferential surface of the anti-fall component, a guide groove is provided on the lower surface of the anti-fall component in the area corresponding to the positioning groove, the guide groove and the positioning groove are connected and are in an inverted L shape, and the fastener can be inserted into the guide groove and the positioning groove in sequence so that the inner groove wall of the positioning groove rests on the fastener.

[0011] According to some embodiments of the present invention, the fastener is columnar.

[0012] According to some embodiments of the utility model, the anti-fall component is disc-shaped, and the ventilation mechanism includes a plurality of fan-shaped ventilation holes, and the plurality of ventilation holes are distributed in a circle with the central axis of the anti-fall component as the center.

[0013] According to some embodiments of the present invention, the floating assembly includes a connecting portion and a plurality of sealing portions circumferentially distributed on the connecting portion, the sealing portion is in a fan ring shape, and a cross-section of the sealing portion is larger than the air vent.

[0014] According to some embodiments of the utility model, a third sliding hole is provided in the middle portion of the anti-falling component, the connecting portion is connected to a limiting rod, the limiting rod is passed through the third sliding hole, and the upper end of the limiting rod can be detachably connected to an abutment block, and the abutment block can abut against the upper surface of the anti-falling component.

[0015] According to some embodiments of the present utility model, the connecting portion and the limiting rod are threadedly connected, and the limiting rod and the abutment block are threadedly connected.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0018] Figure 1 This is a schematic diagram of the top view of the structure of an anti-falling device for supporting a manhole cover to prevent a sudden rise in water level in a well according to an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of an anti-falling assembly in an anti-falling device for supporting a manhole cover to prevent a sudden rise in water level in a well according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic structural diagram of a floating assembly in an anti-falling device for supporting a manhole cover to prevent a sudden rise in water level in a well according to an embodiment of the utility model;

[0021] Figure 4 This is a schematic cross-sectional view of a fall prevention device for supporting a manhole cover to prevent a sudden rise in water level in a well according to an embodiment of the utility model;

[0022] Figure 5 This is a cross-sectional structural schematic diagram of a fastener and an anti-falling assembly in an anti-falling device for supporting a manhole cover to prevent a sudden rise in water level in a well according to an embodiment of the utility model;

[0023] Figure Number:

[0024] Anti-fall assembly 100; ventilation mechanism 110; positioning groove 120; guide groove 130;

[0025] Fastener 200;

[0026] Floating assembly 300; limiting rod 310; abutment block 320; connecting portion 330; sealing portion 340;

[0027] Limiting mechanism 400; guide column 410; limiting block 420;

[0028] Elastic sealing sleeve 500. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figures 1 to 4 The utility model discloses an anti-falling device for preventing a well cover from being lifted due to a sudden rise in water level in a well, comprising an anti-falling component 100, a floating component 300 and a plurality of fasteners 200, wherein the anti-falling component 100 is provided with a venting mechanism 110; the anti-falling component 100 is detachably connected to the inner wall of the well through a plurality of fasteners 200, and the peripheral side of the anti-falling component 100 is sealedly connected to the inner wall of the well; the floating component 300 is connected to the anti-falling component 100 through a limiting mechanism 400, and the floating component 300 is arranged below the anti-falling component 100, and the floating component 300 can move upward as the water level in the well rises, so that the floating component 300 can seal the venting mechanism 110.

[0034] The anti-fall assembly 100 is connected to the inner wall of the well through a plurality of fasteners 200, and the floating assembly 300 is connected to the anti-fall assembly 100 through a limiting mechanism 400, so that the entire anti-fall device is fixed in the well. When the water level in the well rises, the floating assembly 300 floats on the water surface and moves upward with the rise of the water level. The water level in the well continues to rise, and the floating assembly 300 will abut against the lower surface of the anti-fall assembly 100 and seal the air permeable mechanism 110. Since the peripheral side of the anti-fall assembly 100 is sealed and connected to the inner wall of the well, the anti-fall device will seal the wellhead. When the water level in the well reaches the installation position of the anti-fall device, it will no longer rise, avoiding the jumping and displacement of the manhole cover due to the sudden rise of the water level in the drainage pipe, and reducing the risk of pedestrians falling.

[0035] When the water level in the well is low, under the action of gravity, the floating assembly 300 is suspended on the anti-falling assembly 100 through the limiting mechanism 400 to prevent the floating assembly 300 from separating from the anti-falling assembly 100. At this time, the breathable mechanism 110 is not sealed by the floating assembly 300, and the breathable mechanism 110 plays a role in ventilation.

[0036] The limiting mechanism 400 serves to limit the descending position of the floating assembly 300 , and at the same time, serves to guide the ascending and descending direction of the floating assembly 300 during the ascending and descending process of the floating assembly 300 .

[0037] Reference Figure 4 In some of the embodiments, the anti-fall device also includes an elastic sealing sleeve 500, which is arranged between the peripheral side of the anti-fall component 100 and the inner wall of the well. The elastic sealing sleeve 500 is elastic and plays a sealing role between the peripheral side of the anti-fall component 100 and the inner wall of the well.

[0038] In some of the embodiments, the limiting mechanism 400 includes a guide column 410 and two limiting blocks 420. The anti-fall component 100 is provided with a first sliding hole, which passes through the anti-fall component 100 from top to bottom. The floating component 300 is provided with a second sliding hole, which passes through the floating component 300 from top to bottom. The guide column 410 is passed through the first sliding hole and the second sliding hole. The two limiting blocks 420 can be detachably connected to the two ends of the guide column 410, and the two limiting blocks 420 can respectively abut against the upper surface of the anti-fall component 100 and the lower surface of the floating component 300.

[0039] When the anti-fall component 100 and the floating component 300 are connected, the guide column 410 is passed through the first sliding hole and the second sliding hole in sequence, and then the two limit blocks 420 are respectively connected to the two ends of the guide column 410. The anti-fall component 100 and the floating component 300 are both located between the two limit blocks 420, and the two limit blocks 420 serve to limit the distance between the anti-fall component 100 and the floating component 300.

[0040] In some of the embodiments, the limit block 420 is threadedly connected to the guide column 410, and the limit block 420 and the guide column 410 are connected through a threaded structure, which facilitates the connection of the limit block 420 to the guide column 410 or the removal of the limit block 420 from the guide column 410, thereby facilitating the installation of the anti-fall assembly 100, the guide column 410, the limit block 420 and the floating assembly 300.

[0041] In another embodiment, the limiting mechanism 400 includes a guide column 410 and a limiting block 420, a second sliding hole is provided on the floating component 300, the upper end of the guide column 410 is fixedly connected to the anti-fall component 100, the lower end of the guide column 410 is passed through the second sliding hole and extends to the bottom of the floating component 300, the limiting block 420 is threadedly connected to the lower end of the guide column 410, and the limiting block 420 can be against the lower surface of the floating component 300.

[0042] Alternatively, the limiting mechanism 400 includes a guide column 410 and a limiting block 420, a first sliding hole is provided on the anti-fall component 100, the lower end of the guide column 410 is fixedly connected to the anti-fall component 100, the upper end of the guide column 410 is passed through the first sliding hole and extends to the top of the anti-fall component 100, the limiting block 420 is threadedly connected to the upper end of the guide column 410, and the limiting block 420 can be against the upper surface of the anti-fall component 100.

[0043] In this embodiment, there are two limiting mechanisms 400 , and the two limiting mechanisms 400 are symmetrically distributed with the central axis of the anti-falling component 100 as the symmetry center.

[0044] Reference Figure 2 , Figure 3 and Figure 5 In some of the embodiments, the anti-fall component 100 is disc-shaped, and a plurality of positioning grooves 120 are provided on the circumferential surface of the anti-fall component 100. A guide groove 130 is provided on the lower surface of the anti-fall component 100 in the area corresponding to the positioning groove 120. The guide groove 130 is connected to the positioning groove 120 and is in an inverted L shape.

[0045] When installing the anti-fall device, first install a plurality of fasteners 200 on the inner wall of the well, and then place the anti-fall assembly 100 into the well from top to bottom. During this process, the grooves facing downward of the multiple guide grooves 130 correspond one by one to the top and bottom of the fasteners 200, so that the multiple fasteners 200 extend into the guide groove 130 respectively. When the fasteners 200 abut against the upper inner groove wall of the guide groove 130, the anti-fall assembly 100 is rotated, so that the fasteners 200 slide into the positioning groove 120, and the fasteners 200 abut against the upper inner groove wall of the positioning groove 120, thereby supporting the anti-fall assembly 100 on the fasteners 200. When it is necessary to disassemble the anti-fall assembly 100, the anti-fall assembly 100 can be operated in reverse.

[0046] The positioning groove 120 , the guide groove 130 and the fastener 200 have simple structures and are convenient for installation and removal of the anti-fall assembly 100 .

[0047] It is understood that the number of fasteners 200, guide grooves 130 and positioning grooves 120 is equal. The outer contours of the well, the anti-fall assembly 100 and the floating assembly 300 are all circular. Multiple fasteners 200 are circumferentially distributed around the central axis of the well, and the multiple fasteners 200 are at the same water surface height. Multiple positioning grooves 120 are evenly distributed on the peripheral wall of the anti-fall assembly 100, and multiple guide grooves 130 are circumferentially distributed around the central axis of the anti-fall assembly 100.

[0048] In this embodiment, the number of the fasteners 200 , the number of the guide slots 130 , and the number of the positioning slots 120 are all eight.

[0049] Reference Figure 4 In some embodiments, the fastener 200 is columnar, one end of the fastener 200 is riveted to the inner wall of the well, and the axial direction of all fasteners 200 passes through the central axis of the well and is perpendicular to the central axis of the well. The axes of the guide groove 130 and the positioning groove 120 pass through the central axis of the anti-falling component 100 and are perpendicular to the central axis of the anti-falling component 100.

[0050] Of course, the outer contours of the well, the anti-fall assembly 100 and the floating assembly 300 may all be circular or other shapes.

[0051] In some of the embodiments, the anti-fall component 100 is disc-shaped, and the ventilation mechanism 110 includes a plurality of fan-shaped ventilation holes, which are distributed in a circle with the central axis of the anti-fall component 100 as the center, and the plurality of ventilation holes serve to allow gas to pass through, thereby enabling the anti-fall component 100 to achieve ventilation and air permeability in the well.

[0052] Reference Figure 1 and Figure 3 In some of the embodiments, the floating assembly 300 includes a connecting portion 330 and a plurality of sealing portions 340 circumferentially distributed on the connecting portion 330 , the sealing portion 340 is fan-shaped, and a cross-section of the sealing portion 340 is larger than the air vents, and the plurality of air vents and the plurality of sealing portions 340 are arranged one by one in an upper and lower direction.

[0053] In some of the embodiments, a third sliding hole is provided in the middle portion of the anti-fall component 100, and the connecting portion 330 is connected to the limiting rod 310. The limiting rod 310 is passed through the third sliding hole, and the limiting rod 310 can slide in the third sliding hole. The upper end of the limiting rod 310 can be detachably connected to abutment block 320, and the abutment block 320 can abut against the upper surface of the anti-fall component 100. The limiting rod 310 and the abutment block 320 play a role in limiting the downward position of the floating component 300, thereby preventing the floating component 300 from accidentally detaching from the anti-fall component 100.

[0054] Reference Figure 3 and Figure 4In some embodiments, the connection portion 330 and the limiting rod 310 are threadedly connected, so that the limiting rod 310 can be installed on or removed from the connection portion 330. The limiting rod 310 and the abutment block 320 are threadedly connected, so that the abutment block 320 can be installed on or removed from the limiting rod 310, thereby facilitating the assembly and disassembly of the anti-falling assembly 100 and the floating assembly 300.

[0055] The anti-falling assembly 100, the limiting mechanism 400 and the plurality of fasteners 200 are all made of stainless steel.

[0056] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. An anti-falling device for preventing the water level in the well from rising sharply and supporting the manhole cover, characterized in that: include: The anti-falling assembly (100) is provided with a ventilation mechanism (110); A plurality of fasteners (200), the anti-falling assembly (100) being detachably connected to the inner wall of the well via the plurality of fasteners (200), and the peripheral side of the anti-falling assembly (100) being sealedly connected to the inner wall of the well; The floating component (300) is connected to the anti-falling component (100) via a limiting mechanism (400). The floating component (300) is arranged below the anti-falling component (100). The floating component (300) can move upward as the water level in the well rises, so that the floating component (300) can seal the venting mechanism (110).

2. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 1 is characterized in that: It also comprises an elastic sealing sleeve (500), wherein the elastic sealing sleeve (500) is arranged between the peripheral side of the anti-falling component (100) and the inner wall of the well.

3. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 1, characterized in that: The limiting mechanism (400) comprises a guide column (410) and two limiting blocks (420); a first sliding hole is provided on the anti-falling component (100), and the first sliding hole passes through the anti-falling component (100) from top to bottom; a second sliding hole is provided on the floating component (300), and the second sliding hole passes through the floating component (300) from top to bottom; the guide column (410) is passed through the first sliding hole and the second sliding hole; the two limiting blocks (420) are respectively detachably connected to the two ends of the guide column (410); and the two limiting blocks (420) can respectively abut against the upper surface of the anti-falling component (100) and the lower surface of the floating component (300).

4. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 3, characterized in that: The limiting block (420) is threadedly connected to the guide column (410).

5. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 1, characterized in that: The anti-falling component (100) is disc-shaped, and a plurality of positioning grooves (120) are provided on the circumferential surface of the anti-falling component (100). A guide groove (130) is provided on the lower surface of the anti-falling component (100) in an area corresponding to the positioning groove (120). The guide groove (130) and the positioning groove (120) are connected and present an inverted L shape. The fastener (200) can be inserted into the guide groove (130) and the positioning groove (120) in sequence, so that the inner groove wall of the positioning groove (120) abuts against the fastener (200).

6. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 5, characterized in that: The fastener (200) is columnar.

7. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 1, characterized in that: The anti-falling component (100) is in the shape of a disk, and the ventilation mechanism (110) comprises a plurality of ventilation holes in the shape of a fan ring, wherein the plurality of ventilation holes are distributed in a circle with the central axis of the anti-falling component (100) as the center.

8. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 7, characterized in that: The floating assembly (300) comprises a connecting portion (330) and a plurality of sealing portions (340) circumferentially distributed on the connecting portion (330); the sealing portion (340) is in a fan-shaped ring shape, and a cross-section of the sealing portion (340) is larger than the air vent.

9. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 8, characterized in that: A third sliding hole is provided in the middle of the anti-falling component (100), the connecting portion (330) is connected to a limiting rod (310), the limiting rod (310) is passed through the third sliding hole, and the upper end of the limiting rod (310) can be detachably connected to a contact block (320), and the contact block (320) can contact the upper surface of the anti-falling component (100).

10. The anti-falling device for supporting the manhole cover to prevent the water level in the well from rising suddenly according to claim 9, characterized in that: The connecting portion (330) and the limiting rod (310) are threadedly connected, and the limiting rod (310) and the abutment block (320) are threadedly connected.

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