Well lid convenient to install

Abstract

The utility model discloses a well lid convenient to install, which comprises a well seat and a well lid body arranged in the well seat, a group of lifting holes are arranged on the well seat, a fixing ring is integrally formed on the inner wall of the bottom end of the well seat, a plurality of fixing columns penetrate through the fixing ring, the bottom ends of the fixing columns are connected with sleeves in a welding mode, and the sleeves are connected with the lifting holes in a welding mode. A limiting rod is inserted into the sleeve, the limiting rod is welded and fixed to one end of an expansion bolt, the expansion bolt is embedded into the inner wall of the well way, two symmetrically-distributed vertical rods are arranged on the well lid, a rotating plate connected with the vertical rods in a welded mode penetrates through the vertical rods, a bayonet is formed in one end of the rotating plate, and a clamping groove is formed in the other end of the rotating plate. A clamping groove matched with the clamping opening is formed in the top end, close to the vertical rod, of the fixing column. In the whole installation process of the well lid convenient to install, concrete does not need to be poured or the road surface around the well base does not need to be broken, and rapid construction is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to a manhole cover which is easy to install. Background Art

[0002] Manhole covers are used to cover deep wells on roads or in homes to prevent people or objects from falling.

[0003] The current installation method of the manhole cover is shown in the attached figure Figure 1 As shown, it includes a manhole cover 1 and a manhole seat 2. The manhole seat is placed at the well mouth, and concrete is poured to fix the manhole seat on the road surface. When the manhole cover needs to be replaced and installed, the concrete around the manhole seat needs to be broken to remove the manhole seat from the road surface. After replacement, concrete needs to be poured again, and the well mouth needs to be repaired and improved. The entire installation process is time-consuming and labor-intensive, which is not conducive to construction;

[0004] In view of the defects existing in the above prior art, it is necessary to further improve it to make it more practical so as to meet the actual usage. Utility Model Content

[0005] The purpose of the utility model is to provide a manhole cover that is easy to install, so as to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a manhole cover that is easy to install, comprising a manhole seat and a manhole cover arranged in the manhole seat, wherein a group of lifting holes are opened on the manhole seat.

[0007] A fixing ring is integrally formed on the inner wall of the bottom end of the well seat, and a plurality of fixing columns are passed through the fixing ring. A sleeve is welded to the bottom end of the fixing column, and a limiting rod is inserted into the sleeve. The limiting rod is welded and fixed to one end of an expansion bolt, and the expansion bolt is embedded in the inner wall of the well.

[0008] The manhole cover is provided with two symmetrically distributed vertical rods, and a rotating plate welded to the vertical rods passes through the vertical rods. A bayonet is provided at one end of the rotating plate, and a slot matching the bayonet is provided at the top of a fixed column near the vertical rods.

[0009] As the preferred technical solution:

[0010] In the manhole cover that is easy to install as described above, the fixing column is sleeved with a first limiting ring welded thereto, and the first limiting ring abuts against the bottom surface of the fixing ring.

[0011] Through the above technical solution, after the top end of the fixing column passes through the fixing ring, the fixing column can support the fixing ring through the first limiting ring thereon, so that the fixing column can support and fix the well seat.

[0012] In the manhole cover that is easy to install as described above, the top of the fixing column is used to support the manhole cover, the surface of the fixing column above the first limiting ring is threaded and a nut is screwed in, and the nut is in contact with the surface of the fixing ring.

[0013] Through the above technical solution, the top of the fixed column can directly contact the top surface of the manhole cover, which can prevent the manhole cover from sinking. The top of the fixed column can also indirectly contact the top surface of the manhole cover through the rubber pad, so that the manhole cover can be buffered by the rubber pad to reduce external impact force.

[0014] In the manhole cover that is easy to install as described above, the expansion bolts and the fixing columns are perpendicular to each other, the fixing columns are vertical, and the fixing columns are distributed in a ring around the axis of the manhole seat.

[0015] Through the above technical scheme, expansion bolts and fixing columns can be combined into a supporting structure, which can then support the manhole seat, and multiple groups of expansion bolts and fixing columns are provided. At the same time, expansion bolts and fixing columns of suitable specifications can be selected according to the road conditions, thereby improving the bearing capacity of the manhole seat and the manhole cover.

[0016] In the manhole cover that is easy to install as described above, the limiting rod is a rectangular columnar structure, and the cross-section of the sleeve is a rectangular frame.

[0017] Through the above technical solution, the structural design of the limit rod and the sleeve allows the fixing column on the sleeve to remain vertical after the two are engaged, and then when installing the well seat, the fixing column can accurately pass through the fixing ring, facilitating installation operations.

[0018] As described above, a manhole cover that is easy to install is provided with a through slot for the vertical rod to pass through, the manhole cover at both ends of the through slot is provided with annular grooves, the top end of the vertical rod is provided with a hexagonal hole, the top end of the vertical rod is sleeved with two second limiting rings welded to it, and the two second limiting rings are respectively located in the two grooves.

[0019] Through the above technical solution and the design of the hexagonal hole, construction workers can use the hexagonal wrench to screw the vertical rod, thereby driving the rotating plate to rotate through the vertical rod, and the structure is reasonable.

[0020] In the manhole cover that is easy to install as described above, the bottom surface of the manhole cover outside the vertical rod extends vertically downward to form a protrusion, and one end of the rotating plate is welded to the protrusion through an elastic spring.

[0021] Through the above technical solution, the rotating plate forms an elastic movable structure through the elastic spring and the protrusion. The elastic spring can limit and buffer the rotating plate. In this way, when the manhole cover vibrates under the rolling of the vehicle, the rotating plate will only rotate in a small range to prevent the bayonet from separating from the slot.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] (1) The manhole cover that is easy to install is provided with expansion bolts and fixing columns. The expansion bolts are used to be embedded in the inner wall of the well. The fixing columns can be engaged with the expansion bolts through the limiting rod and the sleeve, so that the expansion bolts cooperate with the fixing columns to form a supporting structure;

[0024] (2) The inner ring of the manhole seat of the manhole cover which is easy to install is provided with a fixing ring, which is fixed to the top bolt of the fixing column, and then the fixing column can support the manhole seat through the fixing ring, so that the manhole seat and the manhole cover are fixed at the manhole opening. Therefore, during the entire installation process, there is no need to pour concrete or break the road surface around the manhole seat, which is convenient for rapid construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Install longitudinal sections for existing manhole covers;

[0026] Figure 2 It is a top view of the utility model;

[0027] Figure 3 This is a top view of the well seat and the fixing ring of the utility model;

[0028] Figure 4 This is a front view longitudinal section of the utility model;

[0029] Figure 5 This is a three-dimensional diagram of the fixing column and expansion bolt of the utility model;

[0030] Figure 6 This is a top view of the vertical rod and the rotating plate of the utility model;

[0031] Figure 7 For this utility model Figure 4 Enlarged view of point A in the middle.

[0032] In the figure: 1, well seat; 2, well cover; 3, fixing ring; 4, fixing column; 5, expansion bolt; 6, limiting rod; 7, sleeve; 8, first limiting ring; 9, vertical rod; 10, rotating plate; 11, bayonet; 12, slot; 13, protrusion; 14, elastic spring; 15, lifting hole; 16, second limiting ring. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 2-Figure 7 The utility model provides a technical solution: a manhole cover that is easy to install.

[0035] like Figure 2 As shown, it includes a well base 1 and a well cover 2 arranged in the well base 1. A group of lifting holes 15 are opened on the well base 1.

[0036] When taking the manhole cover 2 out of the manhole seat 1 , a tool such as a crowbar may be inserted into the lifting hole 15 to lift the manhole cover 2 from the manhole seat 1 .

[0037] like Figure 3-Figure 5 As shown, a fixing ring 3 is integrally formed on the inner wall at the bottom end of the well seat 1, and a plurality of fixing columns 4 are passed through the fixing ring 3. A sleeve 7 is welded to the bottom end of the fixing column 4, and a limiting rod 6 is inserted into the sleeve 7. The limiting rod 6 is welded and fixed to one end of the expansion bolt 5. The expansion bolt 5 is embedded in the inner wall of the well, and the expansion bolt 5 and the fixing column 4 are perpendicular to each other. The fixing column 4 is vertical, and the fixing column 4 is distributed in a ring around the axis of the well seat 1. The limiting rod 6 is a rectangular columnar structure, and the cross-section of the sleeve 7 is a rectangular frame.

[0038] During installation, multiple expansion bolts 5 can be embedded on the inner wall of the well, and then the sleeve 7 is engaged with the limit rod 6, so that the fixing column 4 can be vertically placed on the expansion bolts 5, and then the well seat 1 is placed at the well opening, and the outer circle of the well seat 1 can fit with the well opening.

[0039] At the same time, the top end of the fixing column 4 can pass through the fixing ring 3, thus completing the preliminary fixing operation of the well seat 1.

[0040] like Figure 4 As shown, the fixing column 4 is sleeved with a first limiting ring 8 welded thereto, the first limiting ring 8 abuts against the bottom surface of the fixing ring 3, the top of the fixing column 4 is used to support the manhole cover 2, the surface of the fixing column 4 above the first limiting ring 8 is threaded and a nut is screwed in, and the nut abuts against the surface of the fixing ring 3.

[0041] The first limiting ring 8 on the fixing column 4 can support the fixing ring 3 to support the well seat 1. Then, a nut is screwed into the fixing column 4. The first limiting ring 8 cooperates with the nut to fasten the fixing column 4 and the fixing ring 3 together. In this way, the entire well seat 1 can be fixed on the fixing column 4, and the impact force exerted on the well seat 1 can be transmitted to the fixing column 4 and the expansion bolt 5. By selecting fixing columns 4 and expansion bolts 5 of appropriate specifications, the bearing capacity of the well seat 1 can be improved to ensure the overall service life.

[0042] When the well seat 1 and the well cover 2 need to be replaced and installed later, it is only necessary to unscrew the nut on the fixing column 4, and then lift the well seat 1 upward to separate it from the fixing column 4, which is convenient to operate.

[0043] like Figure 4-Figure 6 As shown, two symmetrically distributed vertical rods 9 are provided on the manhole cover 2, and a rotating plate 10 welded to the vertical rod 9 passes through the vertical rod 9. A bayonet 11 is provided at one end of the rotating plate 10, and a slot 12 matching the bayonet 11 is provided at the top of the fixed column 4 near the vertical rod 9, and a hexagonal hole is provided at the top of the vertical rod 9.

[0044] After the well seat 1 is installed, the manhole cover 2 can be placed in the well seat 1, and then the vertical rod 9 can be screwed with an Allen wrench. The vertical rod 9 can drive the rotating plate 10 to rotate until the bayonet 11 on the rotating plate 10 rotates to the fixed column 4, and the rotating plates 10 on both sides of the bayonet 11 can be inserted into the slot 12. Through the above design, the manhole cover 2 can be prevented from jumping in the vertical direction and moving out of the well seat 1.

[0045] The thickness of the rotating plate 10 is smaller than the height of the slot 12, so there is a gap between the two. When the manhole cover 2 is rolled over by a vehicle, it can vibrate slightly, and the rubber pad on the top of the fixed column 4 can buffer the impact force.

[0046] like Figure 6 and Figure 7 As shown, a through slot is provided on the manhole cover 2 for the vertical rod 9 to pass through, and annular grooves are provided on the manhole cover 2 at both ends of the through slot. Two second limiting rings 16 are welded and connected to the top of the vertical rod 9, and the two second limiting rings 16 are respectively located in the two grooves. A protrusion 13 is formed by extending vertically downward from the bottom surface of the manhole cover 2 outside the vertical rod 9, and one end of the rotating plate 10 is welded and connected to the protrusion 13 through an elastic spring 14.

[0047] The design of the two second limit rings 16 allows the vertical rod 9 to not only rotate in the through groove but also be fixed on the manhole cover 2. When the manhole cover 2 needs to be taken out from the well seat 1, two construction workers respectively twist the two vertical rods 9 to drive the rotating plate 10 to rotate, thereby separating the latch 11 from the latch groove 12, and then lift the manhole cover 2 from the well seat 1 with tools such as crowbars.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A manhole cover that is easy to install, comprising a manhole base (1), and a manhole cover (2) arranged in the manhole base (1), wherein a group of lifting holes (15) are opened on the manhole base (1), and the characteristics are: A fixing ring (3) is integrally formed on the inner wall of the bottom end of the well seat (1), a plurality of fixing columns (4) are passed through the fixing ring (3), a sleeve (7) is welded to the bottom end of the fixing column (4), a limiting rod (6) is inserted into the sleeve (7), the limiting rod (6) is welded and fixed to one end of an expansion bolt (5), the expansion bolt (5) is embedded in the inner wall of the well, and the top end of the fixing column (4) is used to support the well cover (2). The manhole cover (2) is provided with two symmetrically distributed vertical rods (9), the vertical rod (9) is penetrated by a rotating plate (10) welded thereto, one end of the rotating plate (10) is provided with a bayonet (11), and the top end of the fixed column (4) near the vertical rod (9) is provided with a bayonet groove (12) matched with the bayonet (11).

2. A manhole cover that is easy to install according to claim 1, characterized in that: The fixing column (4) is sleeved with a first limiting ring (8) welded thereto, and the first limiting ring (8) abuts against the bottom surface of the fixing ring (3).

3. A manhole cover that is easy to install according to claim 2, characterized in that: The surface of the fixing column (4) above the first limiting ring (8) is threaded and a nut is screwed into it, and the nut is in contact with the surface of the fixing ring (3).

4. The easy-to-install manhole cover according to claim 1, characterized in that: The expansion bolts (5) and the fixing columns (4) are perpendicular to each other; the fixing columns (4) are vertical; and the fixing columns (4) are distributed in a ring around the axis of the well seat (1).

5. The easy-to-install manhole cover according to claim 1, characterized in that: The limiting rod (6) is a rectangular columnar structure, and the cross section of the sleeve (7) is a rectangular frame shape.

6. The easy-to-install manhole cover according to claim 1, characterized in that: The manhole cover (2) is provided with a through slot for the vertical rod (9) to pass through, the manhole cover (2) at both ends of the through slot is provided with annular grooves, and the top end of the vertical rod (9) is provided with a hexagonal hole. The top end of the vertical rod (9) is sleeved with two second limiting rings (16) welded thereto, and the two second limiting rings (16) are respectively located in two grooves.

7. The easy-to-install manhole cover according to claim 1, characterized in that: A protrusion (13) is formed on the bottom surface of the manhole cover (2) outside the vertical rod (9) and extends vertically downward. One end of the rotating plate (10) is welded to the protrusion (13) via an elastic spring (14).

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