Nodular cast iron well lid with fixing device

Abstract

The utility model discloses a nodular cast iron well lid with a fixing device, which belongs to the technical field of nodular cast iron well lids and comprises a well lid seat and a well lid body, mounting grooves are arranged on two sides of the well lid seat, and fixing components are assembled in the mounting grooves. The nodular cast iron well lid with the fixing device has the advantages that safety is improved, and the fixing effect is good, the worm is rotated to drive the turbine disc on one side to rotate, the threaded lead screw on the inner side of the turbine disc is made to rotate, through limiting of the arranged limiting block, the threaded lead screw finally moves towards one side and drives the positioning block, and the positioning effect is good. The two sides of the well lid body are clamped and fixed through the two positioning blocks, accidental lifting of the well lid body is avoided, safety risks of personnel and vehicles are reduced, an inner hexagonal groove is formed in the upper end of a worm, the worm can be rotated only by means of an external tool, and the device is prevented from being controlled by pedestrians at will; and the situation that the well lid body is maliciously damaged and lost is effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of ductile iron manhole covers, and in particular relates to a ductile iron manhole cover with a fixing device. Background Art

[0002] Ductile iron manhole covers are covers used to cover the openings of roads, sidewalks or other open drainage systems. They are commonly used in urban roads, parking lots, sidewalks and other places. Ductile iron manhole covers are made of ductile iron, a special type of cast iron, also known as ductile iron or ductile iron. Ductile iron is a cast iron material in which spheroidal graphite particles are distributed in the cast iron matrix, which gives the material better toughness and tensile resistance, and better performance than traditional gray cast iron. Ductile iron manhole covers are usually lighter than traditional gray cast iron manhole covers, but they also have high strength and durability. Ductile iron manhole covers are commonly used to cover drainage systems, inspection wells, sewage treatment facilities and other places. Their design can prevent people and vehicles from mistakenly entering the manhole, while having the ability to withstand the pressure of vehicle and pedestrian traffic. This manhole cover usually has a non-slip surface to provide a safer walking environment. Ductile iron manhole covers play an important role in urban infrastructure, ensuring road safety and a clean urban environment.

[0003] Most of the ductile iron manhole covers on the market do not have a device for fixing the upper cover plate and the fixed base together during use. Such devices may cause the upper cover plate to be accidentally lifted up during use, so such devices pose a great safety hazard during use. Therefore, a ductile iron manhole cover with a fixing device is proposed to solve the above problem. Utility Model Content

[0004] In view of one or more of the above defects or improvement needs in the prior art, the utility model provides a ductile iron manhole cover with a fixing device, which has the advantages of improved safety and good fixing effect.

[0005] To achieve the above-mentioned purpose, the utility model provides a ductile iron manhole cover with a fixing device, comprising a manhole cover seat and a manhole cover body;

[0006] The two sides of the manhole cover seat are provided with mounting grooves and fixing components are installed in the mounting grooves, and two sets of fixing components are arranged in parallel and opposite directions;

[0007] The fixing assembly comprises a base, the upper end surface of the base is equipped with a limit block, one side of the limit block is penetrated by a threaded screw, the threaded screw is externally meshed and slidably provided with a sliding sleeve, the sliding sleeve is externally equipped with a turbine disk, one side of the turbine disk is meshed and equipped with a worm, and the worm is vertically arranged;

[0008] One end of the threaded screw rod is equipped with a mounting plate, and a deep groove ball bearing is installed at the connection with the mounting plate. One side of the mounting plate is equipped with a positioning block.

[0009] As a further improvement of the present invention, a limit seat is installed on the upper end surface of the base, the limit seat has a groove and a rotating shaft is respectively passed through both sides of the groove, pulleys are installed on the inner sides of the two rotating shafts, annular grooves are provided on both sides of the turbine disc, and the two pulleys are respectively installed in the annular grooves on the same side.

[0010] As a further improvement of the utility model, the upper end surface of the base is also equipped with two slide rails, and the two slide rails are arranged in parallel. The lower end surface of the mounting plate is equipped with two sliders, and the two sliders are slidably installed in the two slide rails respectively.

[0011] As a further improvement of the utility model, the lower end of the worm is connected to the base and a deep groove ball bearing is installed at the connection.

[0012] As a further improvement of the utility model, the upper end surface of the base is also equipped with a shell, one side of the shell is provided with an opening, and the other end of the worm passes through the shell and is provided with a hexagonal groove.

[0013] As a further improvement of the present invention, the side surface of the positioning block is provided with anti-slip patterns.

[0014] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0015] The ductile iron manhole cover with a fixing device of the utility model cooperates with each other between components in two sets of fixing assemblies, and rotates the worm to drive the turbine disk installed on one side to rotate, so that the threaded screw arranged on the inner side of the turbine disk rotates, and the threaded screw is limited by the limit block, so that the two positioning blocks clamp and fix the two sides of the manhole cover body to avoid accidental lifting of the manhole cover body and reduce the safety risks of personnel and vehicles. At the same time, the upper end of the worm is provided with an inner hexagonal groove, and the worm can be rotated with the help of an external tool to prevent the device from being arbitrarily manipulated by pedestrians, effectively preventing the manhole cover body from being maliciously damaged and lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall installation structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the installation structure of the fixed component of the utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the fixed component of the utility model;

[0020] Figure 5 This is a schematic diagram of the turbine disc, worm and limit seat structure of the utility model.

[0021] In all the drawings, the same figure marks represent the same technical features, specifically: 1. manhole cover seat; 2. manhole cover body; 3. fixing assembly; 30. base; 301. slide rail; 302. shell; 31. limit block; 32. threaded screw; 33. sliding sleeve; 34. turbine disc; 341. annular slide groove; 35. worm; 351. hexagonal groove; 36. mounting plate; 361. slider; 37. positioning block; 38. limit seat; 381. rotating shaft; 382. pulley. DETAILED DESCRIPTION

[0022] 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.

[0023] Example

[0024] Depend on Figure 1-5 Provided is a ductile iron manhole cover with a fixing device, comprising a manhole cover seat 1 and a manhole cover body 2;

[0025] The two sides of the manhole cover seat 1 are provided with mounting grooves and the mounting grooves are equipped with fixing components 3, and the two sets of fixing components 3 are arranged in parallel and opposite to each other;

[0026] The fixing assembly 3 includes a base 30, and a limit block 31 is installed on the upper end surface of the base 30. A threaded screw 32 is penetrated on one side of the limit block 31. A sliding sleeve 33 is slidably engaged with the threaded screw 32. A turbine disk 34 is installed on the outside of the sliding sleeve 33. A worm 35 is meshed and installed on one side of the turbine disk 34, and the worm 35 is vertically arranged.

[0027] One end of the threaded screw rod 32 is equipped with a mounting plate 36 , and a deep groove ball bearing is installed at the connection with the mounting plate 36 . A positioning block 37 is installed at one side of the mounting plate 36 .

[0028] In this embodiment, through the mutual cooperation between the components in the two groups of fixing assemblies 3, the worm 35 is rotated to drive the turbine disk 34 installed on one side to rotate, so that the threaded screw 32 arranged on the inner side of the turbine disk 34 is rotated, and the threaded screw 32 is limited by the limit block 31, so that the threaded screw 32 is finally moved to one side and drives the positioning block 37, so that the two positioning blocks 37 clamp and fix the two sides of the manhole cover body 2 to avoid accidental lifting of the manhole cover body 2 and reduce the safety risks of personnel and vehicles. At the same time, the upper end of the worm 35 is provided with a hexagonal groove 351, and the worm 35 can be rotated with the help of an external tool to prevent the device from being arbitrarily manipulated by pedestrians, effectively preventing the manhole cover body 2 from being maliciously damaged and lost.

[0029] Specifically, refer to Figure 4-5 A limit seat 38 is installed on the upper end surface of the base 30. The limit seat 38 has a groove and a rotating shaft 381 is respectively passed through the two sides of the groove. Pulleys 382 are installed on the inner sides of the two rotating shafts 381. Annular grooves 341 are provided on both sides of the turbine disk 34. The two pulleys 382 are respectively installed in the annular grooves 341 on the same side.

[0030] In this embodiment, two pulleys 382 are respectively located in the annular grooves 341 provided on both sides of the turbine disc 34. When the turbine disc 34 is driven to rotate by the worm 35, the two pulleys 382 are used to assist in limiting the position.

[0031] Specifically, refer to Figure 4 The upper end surface of the base 30 is also equipped with two slide rails 301, and the two slide rails 301 are arranged in parallel. The lower end surface of the mounting plate 36 is equipped with two sliders 361, and the two sliders 361 are slidably installed in the two slide rails 301 respectively.

[0032] In this embodiment, two slide rails 301 are provided for limiting the mounting plate 36. When the mounting plate 36 is driven, two sliders 361 provided at the lower end of the mounting plate 36 slide in the two slide rails 301, so that the mounting plate 36 is more stable when moving, and drives the positioning block 37 on one side to move.

[0033] Specifically, refer to Figure 4 The lower end of the worm 35 is connected to the base 30 and a deep groove ball bearing is installed at the connection.

[0034] In this embodiment, a deep groove ball bearing is provided at the lower end of the worm 35, which can reduce the friction between the worm 35 and the base 30 and extend the service life of both.

[0035] Specifically, refer to Figure 3The upper end surface of the base 30 is also equipped with a shell 302, one side of the shell 302 is provided with an opening, and the other end of the worm 35 passes through the shell 302 and is provided with a hexagonal groove 351.

[0036] In this embodiment, a rectangular opening is provided on one side of the housing 302 , and the opening is located on one side of the positioning block 37 . The upper end of the worm 35 passes through the housing 302 .

[0037] Specifically, refer to Figure 4 The side of the positioning block 37 is provided with anti-slip texture.

[0038] In this embodiment, by providing anti-slip textures on the side of the positioning block 37, additional friction can be provided, so that the manhole cover body 2 is more stable when being limited and fixed.

[0039] The ductile iron manhole cover with a fixing device of the utility model:

[0040] During actual use, the operator first installs the manhole cover seat 1 on the ground through cement, and then places the manhole cover body 2 on the manhole cover seat 1, uses an external tool to align the hexagonal groove 351 set on the worm 35 and rotates clockwise to drive the worm 35 to rotate. When the worm 35 rotates, it drives the turbine disk 34 engaged on one side, and cooperates with the rotating shaft 381 and the pulley 382 through the set limit seat 38, so that the position of the turbine disk 34 does not change when it rotates. At the same time, a sliding sleeve 33 is set in the turbine disk 34. When the turbine disk 34 rotates, the sliding sleeve 33 drives the meshing threaded screw 32 to rotate, and the threaded screw 32 is limited by the limit block 31 set on one side, so that the threaded screw 32 moves to one side when rotating, and drives the mounting plate 36 at one end. The lower end of the mounting plate 36 is provided with two sliders 361, which are slidably mounted in the two sliders 361. When the threaded screw 32 drives the mounting plate 36 to move to one side, the positioning block 37 set on one side of the mounting plate 36 is driven, and finally the positioning block 37 is pressed against one side of the manhole cover body 2 to one side, and finally the fixed limit of the two sides of the manhole cover body 2 is completed.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ductile iron manhole cover with a fixing device, comprising a manhole cover seat (1) and a manhole cover body (2), characterized in that: The manhole cover seat (1) is provided with installation grooves on both sides and fixing components (3) are installed in the installation grooves, and two groups of fixing components (3) are arranged in parallel and opposite to each other; The fixing assembly (3) comprises a base (30), the upper end surface of the base (30) is equipped with a limit block (31), one side of the limit block (31) is penetrated by a threaded screw (32), the threaded screw (32) is externally meshed and slidably provided with a sliding sleeve (33), the sliding sleeve (33) is externally equipped with a turbine disk (34), one side of the turbine disk (34) is meshed and equipped with a worm (35), and the worm (35) is vertically arranged; One end of the threaded screw rod (32) is equipped with a mounting plate (36), and a deep groove ball bearing is installed at the connection with the mounting plate (36). One side of the mounting plate (36) is equipped with a positioning block (37).

2. The ductile iron manhole cover with a fixing device according to claim 1, characterized in that: The upper end surface of the base (30) is equipped with a limit seat (38), the limit seat (38) has a groove and a rotating shaft (381) is respectively passed through the two sides of the groove, and pulleys (382) are respectively installed on the inner sides of the two rotating shafts (381), and an annular sliding groove (341) is provided on both sides of the turbine disc (34), and the two pulleys (382) are respectively installed in the annular sliding groove (341) on the same side.

3. The ductile iron manhole cover with a fixing device according to claim 1, characterized in that: The upper end surface of the base (30) is also equipped with two slide rails (301) and the two slide rails (301) are arranged in parallel, and the lower end surface of the mounting plate (36) is equipped with two sliders (361) and the two sliders (361) are slidably installed in the two slide rails (301) respectively.

4. The ductile iron manhole cover with a fixing device according to claim 1, characterized in that: The lower end of the worm (35) is connected to the base (30) and a deep groove ball bearing is installed at the connection.

5. The ductile iron manhole cover with a fixing device according to claim 1, characterized in that: The upper end surface of the base (30) is also equipped with a housing (302), one side of the housing (302) is provided with an opening, and the other end of the worm (35) passes through the housing (302) and is provided with a hexagonal socket (351).

6. The ductile iron manhole cover with a fixing device according to claim 1, characterized in that: The side surface of the positioning block (37) is provided with anti-slip patterns.

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