Rotary mounting structure for built-in grate of well lid

Abstract

The utility model belongs to the technical field of well lid strainers, in particular to a well lid built-in strainer rotary mounting structure, which comprises a well lid, the well lid comprises a well frame, a cover plate and an iron strainer, the inner wall of the well frame is fixedly connected with a support ring, the side wall of the iron strainer is fixedly connected with a plurality of connecting plates, the inner side of the support ring is provided with a plurality of L-shaped clamping grooves, and the L-shaped clamping grooves are fixedly connected with the cover plate. The connecting plates are connected to the inner walls of the corresponding L-shaped clamping grooves in a sliding mode, a plurality of inner grooves are formed in the supporting ring, and wedge blocks are connected to the inner walls of the inner grooves in a sliding mode; the connecting plate is borne and limited through the L-shaped clamping grooves and the wedge blocks, so that rotary installation and locking can be completed only by rotating the iron grate and driving the connecting plate to rotate through the iron grate, installation can be achieved without a traditional threaded connection system, operation is easy, efficiency is improved, bolts and nuts are omitted, and cost is reduced. And the situation that bolts or nuts fall off mistakenly to crush the piping shaft is avoided, and follow-up use of the piping shaft is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of manhole cover grates, and in particular relates to a manhole cover built-in grate rotation installation structure. Background Art

[0002] Manhole cover grate is a facility used to cover municipal road pipelines, usually used for the protection and maintenance of underground facilities such as drainage pipes, cables, gas pipelines, etc.

[0003] A manhole cover is generally composed of a manhole cover body and a manhole frame. The built-in grate of the manhole cover is installed inside the manhole frame, and the manhole cover can be removed or flipped open on the manhole frame. The manhole frame is installed and connected to the pipe well body, and the grate can prevent water accumulation and play a drainage role, avoid urban rain and floods, and ensure the smooth flow of urban drainage facilities. The iron grate part can effectively prevent pedestrians and vehicles from accidentally stepping on or falling into the well, and the installation of the grate and the well frame is generally achieved through a threaded connection system. When the grate is disassembled, repaired and replaced, it often takes more time to complete the disassembly and installation work, which affects work efficiency. In addition, the manhole cover is connected to the space of the pipe well below. When bolts and nuts are used for fixing, the bolts or nuts are prone to fall off, which not only affects the normal disassembly and assembly of the grate, but also the fallen bolts or nuts are prone to damage the pipe well, which is not conducive to the subsequent use of the pipe well. Utility Model Content

[0004] The utility model provides a rotating installation structure for a built-in grate of a manhole cover, which has the characteristic of being easy to disassemble and assemble the grate of the manhole cover.

[0005] The utility model provides the following technical solution: comprising a manhole cover, the manhole cover comprising a manhole frame, a cover plate and an iron grate, the inner wall of the manhole frame is fixedly connected with a support ring, the side wall of the iron grate is fixedly connected with a plurality of connecting plates, the inner side of the support ring is provided with a plurality of L-shaped slots, the connecting plate is slidably connected to the inner wall corresponding to the L-shaped slot, the support ring is provided with a plurality of inner grooves, the inner walls of the plurality of inner grooves are slidably connected with wedge blocks, the connecting plate is slidably connected to the side wall corresponding to the wedge blocks, one end of the plurality of connecting plates is provided with a connecting notch, and the wedge blocks are snap-connected to the inner wall corresponding to the connecting notch.

[0006] Among them, a plurality of limit plugs are fixedly connected to the bottom end of the cover plate, and the plurality of limit plugs are plugged into the corresponding inner walls of the L-shaped slots, and the limit plugs are in contact with one side of the corresponding connecting plate.

[0007] Among them, a first spring is fixedly connected to one side of the wedge block, and the first spring is fixedly connected to the corresponding inner wall of the inner groove. A main traction rope corresponding to the wedge block is arranged in the support ring, and a plurality of branch traction ropes are fixedly connected to the side wall of the main traction rope, and the plurality of branch traction ropes are respectively fixedly connected to the corresponding side of the wedge block.

[0008] Among them, a yield groove is opened on the inner side of the support ring, and a handle is fixedly connected to one end of the main traction rope, and the handle is snap-connected to the inner wall of the yield groove.

[0009] Wherein, the top and bottom ends of the connecting plate are both rotatably connected with a plurality of spherical rolling bodies, and the plurality of spherical rolling bodies are all slidably connected to the corresponding inner walls of the inner groove.

[0010] Among them, the inner wall of the inner groove is slidably connected with a push plate, the push plate contacts the corresponding side of the connecting plate, one side of the push plate is fixedly connected with an arc rod, the arc rod is slidably connected to the inner wall of the support ring, one end of the arc rod is fixedly connected to a second spring, a plurality of sliding grooves are opened in the support ring, and one end of the second spring is fixedly connected to the corresponding inner wall of the sliding groove.

[0011] The beneficial effects of the utility model are as follows: the connecting plate is supported and limited by a plurality of L-shaped slots and wedge blocks, so that the rotation installation and locking can be completed by rotating the iron grate, and the iron grate drives the connecting plate to rotate. There is no need to realize installation through a traditional threaded connection system, the operation is simple, and the efficiency is improved. When the iron grate is disassembled, repaired or replaced, the use of bolts and nuts is eliminated, which avoids the situation that the bolts or nuts accidentally fall and hit the pipeline well, which is beneficial to the subsequent use of the pipeline well.

[0012] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of an enlarged top view of the cross section of the support ring and other components of the utility model;

[0015] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of the middle part A;

[0016] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B in the middle.

[0017] In the figure: 1. manhole cover; 11. manhole frame; 12. cover plate; 121. limit plug plate; 13. iron grate; 14. connecting plate; 141. connecting notch; 142. spherical rolling body; 2. support ring; 21. L-shaped slot; 22. inner slot; 23. give way slot; 24. slide slot; 3. wedge block; 31. first spring; 32. main traction rope; 321. branch traction rope; 33. handle; 4. push plate; 41. arc rod; 42. second spring. DETAILED DESCRIPTION

[0018] See also Figure 1-Figure 4 The utility model provides the following technical solutions: including a manhole cover 1, the manhole cover 1 includes a manhole frame 11, a cover plate 12 and an iron grate 13, the inner wall of the manhole frame 11 is fixedly connected with a support ring 2, the side wall of the iron grate 13 is fixedly connected with a plurality of connecting plates 14, the inner side of the support ring 2 is provided with a plurality of L-shaped slots 21, the connecting plate 14 is slidably connected to the inner wall of the corresponding L-shaped slot 21, the support ring 2 is provided with a plurality of inner grooves 22, the inner walls of the plurality of inner grooves 22 are slidably connected with wedge blocks 3, the connecting plate 14 is slidably connected to the side wall of the corresponding wedge blocks 3, one end of the plurality of connecting plates 14 is provided with a connecting notch 141, and the wedge blocks 3 are snap-connected to the inner wall of the corresponding connecting notch 141.

[0019] In this embodiment: the manhole cover 1 is connected to the pipeline well body through the manhole frame 11, the cover plate 12 blocks the top opening of the manhole frame 11 to realize the opening and blocking control of the pipeline well, the iron grate 13 is arranged inside the manhole frame 11, the manhole frame 11 supports the support ring 2, the support ring 2 is connected to a plurality of connecting plates 14 through a plurality of L-shaped slots 21, and the plurality of connecting plates 14 are evenly distributed on the outside of the iron grate 13, and the plurality of connecting plates 14 jointly support the iron grate 13, and the L-shaped slot 21 as a whole is composed of two vertical and horizontal The space composition, when the iron grate 13 is installed, the iron grate 13 drives a plurality of connecting plates 14 to align with a plurality of L-shaped slots 21 one by one, and then the iron grate 13 is lowered, and the iron grate 13 drives a plurality of connecting plates 14 to descend, and the connecting plates 14 enter the vertical space corresponding to the L-shaped slots 21. As the iron grate 13 drives the connecting plates 14 to continue to descend, the connecting plates 14 can contact with the bottom inner wall of the L-shaped slots 21, so that the support ring 2 can support the connecting plates 14 through the L-shaped slots 21, and the connecting plates 1 4 supports the iron grate 13, and then rotates the iron grate 13, which drives several connecting plates 14 to rotate synchronously. The connecting plates 14 slide in the horizontal space of the corresponding L-shaped slots 21. The support ring 2 makes way for the wedge block 3 through several inner grooves 22. A section of the wedge block 3 is inside the L-shaped slot 21. When the iron grate 13 drives the connecting plate 14 to rotate, the connecting plate 14 contacts the wedge block 3, and then the connecting plate 14 passes over the wedge block 3. When the connecting notch 141 is aligned with the wedge block 3, the wedge block 3 is inserted into the space of the connecting notch 141. The wedge block 3 uses the vertical surface to limit the connecting plate 14, so that the connecting plate 14 cannot rotate toward the vertical space of the L-shaped slot 21 at this time, thereby completing the installation and locking of the iron grate 13 and the support ring 2. Several connecting plates 14 are installed simultaneously, and there is no need to use a traditional threaded connection system to achieve installation. The operation is simple and the efficiency is improved. When the iron grate 13 is disassembled, repaired or replaced, the use of bolts and nuts is eliminated, which avoids the situation where bolts or nuts accidentally fall and hit the pipeline well, which is beneficial to the subsequent use of the pipeline well.

[0020] The bottom end of the cover plate 12 is fixedly connected with a plurality of limit plugs 121, and the plurality of limit plugs 121 are all plugged into the corresponding inner walls of the L-shaped slots 21, and the limit plugs 121 are in contact with one side of the corresponding connecting plate 14; when the connecting plate 14 is docked with the wedge block 3 through the connecting notch 141, the vertical space of the L-shaped slot 21 is vacant, and the vertical space of the L-shaped slot 21 is also the only way for the connecting plate 14 to slide when it is disassembled. The cover plate 12 drives the plurality of limit plugs 121 downward to dock with the inner groove 22, and the limit plugs 121 are inserted into the vertical space of the inner groove 22, so that the limit plugs 121 can perform secondary shielding on the connecting plate 14, strengthen the limiting effect of the connecting plate 14, ensure the stability of the connecting plate 14 and the iron grate 13, and the cover plate 12 is limited by the inner groove 22 by the limit plugs 121, so that the cover plate 12 itself will not rotate, thereby improving the stability and safety of the cover plate 12 when in use.

[0021] A first spring 31 is fixedly connected to one side of the wedge block 3, and the first spring 31 is fixedly connected to the inner wall of the corresponding inner groove 22. A main traction rope 32 corresponding to the wedge block 3 is arranged in the support ring 2, and a plurality of branch traction ropes 321 are fixedly connected to the side wall of the main traction rope 32, and the plurality of branch traction ropes 321 are respectively fixedly connected to one side of the corresponding wedge block 3; the first spring 31 pushes the wedge block 3, so that after the connecting plate 14 squeezes and passes over the wedge block 3, the first spring 31 can automatically push the wedge block 3 to engage in the connecting notch 141, so that the wedge block 3 can The limiting work of the connecting plate 14 is automatically completed, and the main traction rope 32 is connected and controlled with several wedge blocks 3 through several branch traction ropes 321. When the wedge block 3 and the connecting plate 14 are unlocked, by controlling the main traction rope 32, the main traction rope 32 pulls several branch traction ropes 321 at the same time, and the branch traction rope 321 pulls the corresponding wedge block 3, so that the wedge block 3 can be retracted into the corresponding inner groove 22, and then the wedge block 3 can be pulled away from the shaft rod of the connecting notch 141, completing the unlocking work of the connecting plate 14 and the wedge block 3.

[0022] A clearance groove 23 is opened on the inner side of the support ring 2, and a handle 33 is fixedly connected to one end of the main traction rope 32, and the handle 33 is snap-connected to the inner wall of the clearance groove 23; the clearance groove 23 makes way for the handle 33 to prevent the handle 33 from interfering with other components when not in use. The handle 33 controls the traction of the main traction rope 32, and the handle 33 is convenient for the staff to hold.

[0023] The top and bottom ends of the connecting plate 14 are rotatably connected to a plurality of spherical rolling bodies 142, and the plurality of spherical rolling bodies 142 are slidably connected to the inner walls of the corresponding inner grooves 22; the connecting plate 14 contacts the inner wall of the L-shaped slot 21 through the plurality of spherical rolling bodies 142, thereby reducing the movement resistance of the connecting plate 14 when sliding inside the L-shaped slot 21, and facilitating the disassembly and installation of the iron grate 13.

[0024] The inner wall of the inner groove 22 is slidably connected with a push plate 4, and the push plate 4 contacts with one side of the corresponding connecting plate 14, and one side of the push plate 4 is fixedly connected with an arc rod 41, and the arc rod 41 is slidably connected to the inner wall of the support ring 2, and one end of the arc rod 41 is fixedly connected to the second spring 42. A plurality of slide grooves 24 are opened in the support ring 2, and one end of the second spring 42 is fixedly connected to the inner wall of the corresponding slide groove 24; the slide groove 24 gives way to the second spring 42 and the arc rod 41, and the second spring 42 pushes the arc rod 41, and the push plate 4 pushes the connecting plate 14. When the connecting plate 14 is installed, the connecting plate 14 squeezes and pushes the push plate 4. When the wedge block 3 is pulled out from the connecting notch 141 to unlock the connecting plate 14, the second spring 42 can push the connecting plate 14 through the arc rod 41 and the push plate 4, so that the connecting plate 14 can rotate to the vertical spatial orientation of the L-shaped slot 21, which is convenient for removing the iron grate 13 and the connecting plate 14.

[0025] The working principle and use process of the utility model are as follows: when the iron grate 13 is inspected or replaced, the handle 33 is held and pulled, and the handle 33 pulls the main traction rope 32, and the main traction rope 32 pulls several branch traction ropes 321 at the same time, and the branch traction rope 321 pulls the corresponding wedge block 3, so that the wedge block 3 can be retracted into the corresponding inner groove 22, and then the wedge block 3 can be pulled out from the connecting notch 141 shaft rod, completing the unlocking work of the connecting plate 14 and the wedge block 3, and the second spring 42 can push the connecting plate 14 through the arc rod 41 and the push plate 4, so that the connecting plate 14 can rotate in the vertical spatial orientation of the L-shaped slot 21, which is convenient for taking out the iron grate 13 and the connecting plate 14. When the iron grate 13 is installed, the iron grate 13 drives several connecting plates 14 and several L-shaped slots. The positions of the slots 21 are aligned one by one, and then the iron grate 13 is lowered, and the iron grate 13 drives several connecting plates 14 to descend, and the connecting plates 14 enter the vertical space of the corresponding L-shaped slot 21. As the iron grate 13 drives the connecting plates 14 to continue to descend, the connecting plates 14 can contact the bottom inner wall of the L-shaped slot 21, and then the iron grate 13 is rotated, and the iron grate 13 drives several connecting plates 14 to rotate synchronously, and the connecting plates 14 slide in the horizontal space of the corresponding L-shaped slot 21, and then the connecting plates 14 pass over the wedge block 3. When the connecting notch 141 is aligned with the wedge block 3, the wedge block 3 is inserted into the space of the connecting notch 141, and the wedge block 3 uses the vertical surface to limit the connecting plate 14, so that the connecting plate 14 cannot rotate to the vertical space of the L-shaped slot 21 at this time, thereby completing the installation and locking of the iron grate 13 and the support ring 2.

Claims

1. A manhole cover with a built-in grate rotatable installation structure, comprising a manhole cover (1), characterized in that: The manhole cover (1) comprises a manhole frame (11), a cover plate (12) and an iron grate (13); the inner wall of the manhole frame (11) is fixedly connected with a support ring (2); the side wall of the iron grate (13) is fixedly connected with a plurality of connecting plates (14); the inner side of the support ring (2) is provided with a plurality of L-shaped slots (21); the connecting plates (14) are slidably connected to the inner walls of the corresponding L-shaped slots (21); the support ring (2) is provided with a plurality of inner grooves (22); the inner walls of the plurality of inner grooves (22) are slidably connected with wedge blocks (3); the connecting plates (14) are slidably connected to the side walls of the corresponding wedge blocks (3); one end of the plurality of connecting plates (14) is provided with a connecting notch (141); the wedge blocks (3) are snap-fitted and connected to the inner walls of the corresponding connecting notches (141).

2. The rotatable installation structure of a manhole cover with a built-in grate according to claim 1, characterized in that: A plurality of limit plug plates (121) are fixedly connected to the bottom end of the cover plate (12), and the plurality of limit plug plates (121) are plugged into the inner wall of the corresponding L-shaped slot (21), and the limit plug plates (121) are in contact with one side of the corresponding connection plate (14).

3. The manhole cover built-in grate rotating installation structure according to claim 1, characterized in that: A first spring (31) is fixedly connected to one side of the wedge block (3), and the first spring (31) is fixedly connected to the inner wall of the corresponding inner groove (22). A main traction rope (32) corresponding to the wedge block (3) is arranged in the support ring (2), and a plurality of branch traction ropes (321) are fixedly connected to the side wall of the main traction rope (32), and the plurality of branch traction ropes (321) are respectively fixedly connected to one side of the corresponding wedge block (3).

4. The rotatable installation structure of the built-in grate of a manhole cover according to claim 3, characterized in that: A clearance groove (23) is provided on the inner side of the support ring (2); one end of the main traction rope (32) is fixedly connected to a handle (33); and the handle (33) is snap-connected to the inner wall of the clearance groove (23).

5. The manhole cover built-in grate rotation installation structure according to claim 1, characterized in that: The top and bottom ends of the connecting plate (14) are both rotatably connected to a plurality of spherical rolling bodies (142), and the plurality of spherical rolling bodies (142) are slidably connected to the inner walls of the corresponding inner grooves (22).

6. The rotatable installation structure of a manhole cover with a built-in grate according to claim 1, characterized in that: The inner wall of the inner groove (22) is slidably connected to a push plate (4), the push plate (4) contacts one side of the corresponding connecting plate (14), one side of the push plate (4) is fixedly connected to an arc rod (41), the arc rod (41) is slidably connected to the inner wall of the support ring (2), one end of the arc rod (41) is fixedly connected to a second spring (42), a plurality of slide grooves (24) are provided in the support ring (2), one end of the second spring (42) is fixedly connected to the inner wall of the corresponding slide groove (24).

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