Anti-falling safety inspection well cover

Abstract

The utility model relates to the technical field of inspection well covers, in particular to an anti-falling safety inspection well cover which comprises an inspection well cover body, a well cover base is arranged below the inspection well cover body, a well ring supporting ring is arranged in the well cover base, an anti-falling clamping groove is formed in the well cover base, an open groove and a countersunk head inner groove are formed in the inspection well cover body, and the countersunk head inner groove is arranged in the open groove. The side wall of the open groove is provided with a side guide sliding groove, a guide sliding transverse block is connected into the side guide sliding groove in a sliding mode, a compression spring and an anti-disengaging insertion rod are arranged on the guide sliding transverse block, a magnetic attraction column is arranged on the anti-disengaging insertion rod, a threaded groove is formed in the countersunk head inner groove, and a protective cover plate is arranged in the countersunk head inner groove in a covering mode. A bolt cap is arranged on the protective cover plate, a bolt column is arranged on the bolt cap, and a finger lock groove is formed in the guide sliding transverse block. The whole anti-tilting and anti-falling performance of the inspection well cover body placed in the well ring supporting ring on the well cover base is improved, the situation that normal use of a road is affected due to the exposed state is avoided, and the pulling convenience of the anti-falling inserting rod is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to an anti-falling safety manhole cover. Background Art

[0002] Manhole covers, also known as inspection well covers, are covers used to cover the entrances and exits of various pipeline facilities (such as drainage, water supply, gas, electricity, communications, etc.) on roads or in homes.

[0003] The main function of the manhole cover is to protect the safety of the facilities in the manhole and prevent pedestrians, vehicles, etc. from falling in accidentally. At the same time, it is convenient for staff to inspect, repair and maintain it. It is widely used in urban roads, community roads, park roads and other places.

[0004] During installation, first preset a pre-buried groove on the ground road, then embed the manhole cover base in the pre-buried groove, and finally place the manhole cover body in the manhole ring support ring on the manhole cover base.

[0005] At present, the existing manhole cover bodies are directly placed in the manhole ring support ring of the manhole cover base, and are often crushed by moving vehicles, which can easily cause the manhole cover bodies to directly lift up and fall off from the manhole ring support ring, greatly reducing the anti-lifting and falling resistance of the manhole cover body placed in the manhole ring support ring on the manhole cover base.

[0006] The above problems are widespread and urgently need to be improved. Utility Model Content

[0007] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes an anti-falling safety manhole cover.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A safety manhole cover with anti-falling function is designed, comprising a manhole cover body, a manhole cover base is provided at the bottom of the manhole cover body, a manhole ring support ring is provided in the manhole cover base, an anti-falling slot is provided on the manhole cover base, an opening slot and a countersunk inner slot are provided on the manhole cover body, a side guide slot is provided on the side wall of the opening slot, a guide slide cross block is slidably connected in the side guide slide slot, a compression spring and an anti-falling plug rod are provided on the guide slide cross block, a magnetic suction column is provided on the anti-falling plug rod, a threaded groove is provided on the countersunk inner slot, a protective cover plate is provided in the countersunk inner slot, a bolt nut is provided on the protective cover plate, a bolt column is provided on the bolt nut, and a finger buckle groove is provided on the guide slide cross block.

[0010] Furthermore, the manhole cover body is arranged on the manhole ring support ring, and the upper end surfaces of the manhole cover body, the manhole cover base and the protective cover plate are all horizontally aligned.

[0011] Furthermore, the open groove is an upper open structure, the side guide groove and the compression spring are a group, and there are two symmetrically arranged groups in total, and the two ends of the compression spring are respectively fixed to the guide cross block and the inner groove wall of the side guide groove.

[0012] Furthermore, the side guide groove is a rectangular long open inner groove, and the guide cross block is an overall rectangular long strip structure and is matched and slidably connected with the side guide groove.

[0013] Furthermore, the guide slide block and the anti-dropout plug rod are integrally formed into a T-shaped structure, and the anti-dropout plug rod is inserted into the anti-dropout slot.

[0014] Furthermore, the magnetic column is arranged at one end of the anti-dropout plug rod facing the anti-dropout slot, and the magnetic column is a cylindrical structure as a whole and is made of neodymium iron boron alloy.

[0015] Furthermore, the finger buckle groove is a semi-arc inner groove structure as a whole, and the inner groove wall of the finger buckle groove is provided with an elastic anti-slip layer, and the elastic anti-slip layer is a polyurethane PU coating structure with a thickness of one to two millimeters.

[0016] The utility model provides an anti-falling safety manhole cover, which has the following beneficial effects:

[0017] 1. The utility model provides a symmetrically guided elastic guide sliding cross block structure on the manhole cover body, and an anti-dropping plug rod structure with a magnetic suction column is arranged on the guide sliding cross block, and an anti-dropping slot is provided on the manhole cover base. When the manhole cover body is placed into the manhole ring support ring, symmetrically guided elastic snap connection and magnetically stable adsorption are achieved, which effectively improves the overall anti-warping and anti-dropping property of the manhole cover body placed in the manhole ring support ring on the manhole cover base.

[0018] 2. The utility model provides a protective cover plate structure with a sunken bolt cap, which can cover the anti-dropping plug rod structure on the manhole cover as a whole, avoiding the exposed state that affects the normal use of the road.

[0019] 3. The utility model provides a finger-grip groove structure with an elastic anti-skid layer on the guide slide block, so that fingers can directly grab and pull the anti-dropout plug rod, thereby improving the convenience of pulling the anti-dropout plug rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded view of the overall structure of the utility model;

[0021] Figure 2 For the utility model Figure 1 A three-dimensional schematic diagram of a manhole cover body having a guide sliding cross block and an anti-dropping plug rod structure;

[0022] Figure 3It is a three-dimensional schematic diagram of the overall structure of the utility model for clamping and installing;

[0023] Figure 4 For the utility model Figure 3 A three-dimensional schematic diagram of the clamping installation without the protective cover plate;

[0024] Figure 5 For the utility model Figure 1 A three-dimensional schematic diagram of the middle cover.

[0025] In the figure: 1 manhole cover body; 11 opening groove; 2 manhole cover base; 21 manhole ring support ring; 22 anti-slip groove; 3 countersunk inner groove; 31 threaded groove; 4 guide slide cross block; 5 anti-slip plug rod; 51 magnetic suction column; 6 cover plate; 61 bolt cap; 62 bolt column; 7 finger buckle groove; 71 elastic anti-slip layer, 8 side guide slide groove, 81 compression spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1-5 A safety manhole cover with an anti-dropping function comprises a manhole cover body 1, a manhole cover base 2 is arranged below the manhole cover body 1, a manhole ring support ring 21 is arranged inside the manhole cover base 2, an anti-dropping slot 22 is arranged on the manhole cover base 2, an opening slot 11 and a countersunk inner slot 3 are arranged on the manhole cover body 1, a side guide slot 8 is arranged on the side wall of the opening slot 11, a guide slide block 4 is slidably connected in the side guide slot 8, and a compression spring 81 and an anti-dropping plug are arranged on the guide slide block 4 Rod 5, a magnetic column 51 is arranged on the anti-dropping plug rod 5, a threaded groove 31 is opened on the countersunk inner groove 3, a protective cover plate 6 is provided in the countersunk inner groove 3, a bolt cap 61 is arranged on the protective cover plate 6, a bolt cap 61 is arranged on the bolt cap 61, a bolt column 62 is arranged on the bolt cap 61, a finger buckle groove 7 is opened on the guide sliding cross block 4, the manhole cover body 1, the manhole cover base 2, and the manhole ring support ring 21 are all conventional structures of the manhole, which are prior arts, and some existing structures are not drawn and marked, and there is no need to repeat them.

[0028] The bolt cap 61 is pre-set with a cross groove, which can be inserted with a cross or flat-blade screwdriver for easy rotation.

[0029] In detail, the manhole cover body 1 is arranged on the manhole ring support ring 21, and the upper end surfaces of the manhole cover body 1, the manhole cover base 2, and the protective cover plate 6 are all horizontally aligned. At the same time, the bolt cap 61 is also embedded in the protective cover plate 6 and does not protrude, thereby ensuring the overall flatness of the manhole cover body 1 and the upper end surfaces of the manhole cover base 2, thereby ensuring the normal use of the road.

[0030] The protective cover plate 6 is made of hard alloy tungsten steel as a whole, which has high strength, is resistant to rolling, and is non-deformable and durable.

[0031] Furthermore, the open groove 11 is an upper open structure, the side guide groove 8 and the compression spring 81 are a group, and there are two symmetrically arranged groups in total. The two ends of the compression spring 81 are respectively fixed to the guide cross block 4 and the inner groove wall of the side guide groove 8. The compression spring 81 is made of high-quality spring steel, which is highly elastic and stable.

[0032] Furthermore, the side guide groove 8 is a rectangular long open inner groove, and the guide cross block 4 has an overall rectangular long strip structure and is matched and slidably connected with the side guide groove 8 to achieve a stable guiding sliding effect of the guide cross block 4 along the side guide groove 8.

[0033] In more detail, the guide cross block 4 and the anti-dropout plug rod 5 are T-shaped structures as a whole. The anti-dropout plug rod 5 is inserted in the anti-dropout slot 22. The left-right symmetrical anti-dropout plug rod 5 can be easily inserted into the matching anti-dropout slots 22 on both sides to prevent the manhole cover body 1 from lifting up and falling off.

[0034] In general, the magnetic column 51 is arranged at one end of the anti-dropout rod 5 facing the anti-dropout slot 22. The magnetic column 51 is a cylindrical structure as a whole and is made of neodymium iron boron alloy. The neodymium iron boron alloy material has excellent magnetic adsorption performance and can be stably magnetically adsorbed with the inner groove wall of the anti-dropout slot 22 made of metal material, further improving the stability of the anti-dropout rod 5 when it is clipped into the anti-dropout slot 22.

[0035] Finally, the finger-grip groove 7 is a semi-arc inner groove structure as a whole, which makes it convenient for fingers to grab and pull.

[0036] The inner groove wall of the finger clip groove 7 is provided with an elastic anti-skid layer 71. The elastic anti-skid layer 71 is a polyurethane PU coating structure with a thickness of one to two millimeters. The polyurethane PU coating has excellent elastic damping and anti-skid properties, which improves the comfort of the finger being inserted and the damping and anti-skid effect.

[0037] Working method: insert your fingers into the finger buckle grooves 7 on both sides and press them, which can drive the guide sliding blocks 4 on both sides to slide toward each other along the side guide sliding grooves 8, and at the same time drive the anti-slip plug rods 5 on both sides to move toward each other, until the outer end walls of the magnetic suction columns 51 on the anti-slip plug rods 5 on both sides are aligned with the outer end walls of the manhole cover body 1, at this time the compression spring 81 is compressed and deformed, and then the manhole cover body 1 is placed on the well ring support ring 21 in the manhole cover base 2, and the guide sliding block 4 is loosened. The compression spring 81 in the compressed state rebounds and drives the anti-slip plug rod 5 to be inserted into the anti-slip slot 22 to achieve the anti-slip snap-in effect. At the same time, the magnetic suction column 51 will also be firmly magnetically adsorbed with the inner groove wall of the anti-slip slot 22 made of metal material, effectively improving the overall anti-tilting and falling-off property of the manhole cover body 1 placed in the well ring support ring 21 on the manhole cover base 2.

[0038] Moreover, after the manhole cover body 1 is snapped onto the manhole cover base 2, the protective cover plate 6 is snapped into the countersunk inner groove 3, and then the bolt cap 61 is rotated clockwise to drive the bolt column 62 to rotate clockwise and threadedly lock with the thread groove 31, so that the anti-detachment plug rod 5 structure on the manhole cover body 1 can be covered as a whole to avoid being exposed and affecting the normal use of the road.

[0039] In addition, by providing a finger-grip groove 7 structure with an elastic anti-skid layer 71 on the guide slide block 4, fingers can be directly inserted into and pulled to prevent the anti-dropout rod 5, thereby improving the convenience of pulling the anti-dropout rod 5.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety manhole cover that prevents falling off, comprising a manhole cover body (1), Features: A manhole cover base (2) is provided below the manhole cover body (1), a manhole ring support ring (21) is provided inside the manhole cover base (2), an anti-dropping groove (22) is provided on the manhole cover base (2), an opening groove (11) and a countersunk inner groove (3) are provided on the manhole cover body (1), a side guide groove (8) is provided on the side wall of the opening groove (11), a guide slide cross block (4) is slidably connected inside the side guide groove (8), and the guide slide cross block (4) is provided with a compression spring (81) and an anti-detachment plug rod (5), the anti-detachment plug rod (5) is provided with a magnetic suction column (51), the countersunk inner groove (3) is provided with a threaded groove (31), the countersunk inner groove (3) is covered with a protective cover plate (6), the protective cover plate (6) is provided with a bolt cap (61), the bolt cap (61) is provided with a bolt column (62), and the guide slide cross block (4) is provided with a finger buckle groove (7).

2. The anti-falling safety manhole cover according to claim 1, Features: The manhole cover body (1) is arranged on a manhole ring support ring (21), and the upper end surfaces of the manhole cover body (1), the manhole cover base (2) and the protective cover plate (6) are all horizontally aligned.

3. The anti-falling safety manhole cover according to claim 1, Features: The open groove (11) is an upper open structure, the side guide groove (8) and the compression spring (81) form a group, and there are two symmetrically arranged groups in total, and the two ends of the compression spring (81) are respectively fixed to the guide cross block (4) and the inner groove wall of the side guide groove (8).

4. The anti-falling safety manhole cover according to claim 1, Features: The side guide groove (8) is a rectangular long strip open inner groove, and the guide cross block (4) is an overall rectangular long strip structure and is matched and slidably connected with the side guide groove (8).

5. The anti-falling safety manhole cover according to claim 1, Features: The guide slide block (4) and the anti-dropout plug rod (5) are integrally formed into a T-shaped structure, and the anti-dropout plug rod (5) is inserted into the anti-dropout slot (22).

6. The anti-falling safety manhole cover according to claim 1, Features: The magnetic column (51) is arranged at one end of the anti-dropout plug rod (5) facing the anti-dropout slot (22); the magnetic column (51) is a cylindrical structure as a whole and is made of a neodymium iron boron alloy.

7. The anti-falling safety manhole cover according to claim 1, Features: The finger buckle groove (7) is a semi-arc inner groove structure as a whole, and the inner groove wall surface of the finger buckle groove (7) is provided with an elastic anti-slip layer (71), and the elastic anti-slip layer (71) is a polyurethane PU coating structure with a thickness of one to two millimeters.

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