Anti-theft locking structure of nodular cast iron well lid

Abstract

The utility model relates to an anti-theft locking structure of a nodular cast iron well lid, which belongs to the field of cast iron well lids and comprises a well seat and a well lid body, a clamping component is mounted on the well lid body, a fixing component is mounted on the well lid body, and the clamping component comprises two sliding rods fixedly mounted in the well lid body. And moving blocks are slidably mounted on the outer sides of the two sliding rods correspondingly, L-shaped connecting rods are fixedly mounted at the bottoms of the two moving blocks correspondingly, and clamping blocks are fixedly mounted on the opposite sides of the two L-shaped connecting rods correspondingly. According to the anti-theft locking structure for the nodular cast iron well lid, the well lid is conveniently fixed in the well base through the clamping assembly, the situation that the well lid is stolen is reduced, the well lid is more stably installed, the using effect of the well lid is improved, the installation base is conveniently hidden through the fixing assembly, and then the risk that the well lid is stolen is reduced; the installation quality of the well lid is improved, and the stealing phenomenon is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cast iron manhole covers, in particular to an anti-theft locking structure for a ductile iron manhole cover. Background Art

[0002] Ductile iron manhole covers are generally divided into round and square shapes. In urban road administration, round shapes are generally used because round manhole covers are not easy to tilt and can better protect the safety of pedestrians and vehicles. Ductile iron manhole covers are composed of manhole covers and manhole seats, in which the manhole covers and manhole seats are hinged and rotated with each other, so it is easy to disassemble and separate the manhole covers, which makes it easy to steal the manhole covers.

[0003] Please refer to the announcement number CN215715555U for a ductile iron manhole cover with an anti-theft function, which includes a support base body, and an end cover body is provided on the top of the support base body... The manhole cover is provided with an elongated through hole, a countersunk hole and a rectangular protrusion, and the cross-section of the rectangular protrusion is a rectangular structure; this utility model is a ductile iron manhole cover with an anti-theft function. Under the joint action of the locking mechanism and the fixing parts, the anti-theft manhole cover can improve the anti-theft performance of the manhole cover, and it is difficult for non-equipment maintenance personnel to rotate the locking mechanism and open the manhole cover; the anti-theft manhole cover does not have too many mechanical structures, and will not cause too much impact on subsequent down-well maintenance and drainage.

[0004] In the above patent, the locking device is located on the top of the manhole cover seat, and thieves can easily configure the same lock hole and steal the manhole cover, which reduces the quality and effect of the manhole cover. This application proposes another technical solution to solve this technical problem. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a ductile iron manhole cover anti-theft locking structure with the advantages of double anti-theft, which solves the problem that thieves can easily configure the same lock hole and then steal the manhole cover, thereby reducing the quality and use effect of the manhole cover.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ductile iron manhole cover anti-theft locking structure, comprising a manhole seat and a manhole cover body, a clamping assembly mounted on the manhole cover body, and a fixing assembly mounted on the manhole cover body;

[0007] The clamping assembly includes two sliding rods fixedly mounted inside the manhole cover body, a moving block being slidably mounted on the outer sides of the two sliding rods, an L-shaped connecting rod being fixedly mounted on the bottom of the two moving blocks, and a clamping block being fixedly mounted on the opposite sides of the two L-shaped connecting rods;

[0008] The tops of the two moving blocks are fixedly installed with connecting columns, the tops of the two connecting columns are fixedly installed with push plates, the internal threads of the manhole cover body are connected to two screws, and the tops of the two screws are fixedly installed with mounting seats.

[0009] Furthermore, the fixing assembly includes a stopper that is clamped to the top of the manhole cover body, a sealing ring is fixedly installed on the outer side of the stopper, and a bolt is threadedly connected to the top of the manhole cover body.

[0010] Furthermore, two mounting grooves are provided at the bottom of the manhole cover body, and the sliding rod is fixedly mounted and connected to the manhole cover body through the mounting grooves.

[0011] Furthermore, a clamping groove is provided on opposite sides of the inner wall of the well seat, and the clamping block is clamped with the well seat through the clamping groove.

[0012] Furthermore, a placement groove is provided on the top of the manhole cover body, and the push plate is located inside the placement groove. A movable hole is provided inside the manhole cover body, and the connecting column extends to the inside of the placement groove through the movable hole.

[0013] Furthermore, a first threaded hole is opened inside the manhole cover body, and the screw is threadedly connected to the manhole cover body through the first threaded hole.

[0014] Furthermore, a second threaded hole is provided on the top of the manhole cover body, and the bolt is threadedly connected to the manhole cover body through the second threaded hole.

[0015] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0016] The anti-theft locking structure of the ductile iron manhole cover is convenient for fixing the manhole cover inside the manhole seat by installing a snap-on component, reducing the risk of the manhole cover being stolen, making the installation of the manhole cover more stable, and improving the use effect of the manhole cover. By installing a fixing component, the mounting base can be easily hidden, thereby reducing the risk of the manhole cover being stolen, improving the quality of the manhole cover installation, and reducing the phenomenon of theft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 A magnified view of the structure in the middle;

[0019] Figure 3 This is a three-dimensional diagram of the movable block structure of the utility model.

[0020] In the figure: 1. Well seat; 2. Well cover body; 3. Slide rod; 4. Moving block; 5. L-shaped connecting rod; 6. Clamping block; 7. Connecting column; 8. Push plate; 9. Screw; 10. Mounting seat; 11. Stop block; 12. Sealing ring; 13. Bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 3 In this embodiment, a ductile iron manhole cover anti-theft locking structure includes a manhole seat 1 and a manhole cover body 2, a clamping component is installed on the manhole cover body 2, and a fixing component is installed on the manhole cover body 2.

[0023] The clamping assembly includes two slide rods 3 fixedly mounted inside the manhole cover body 2. Two mounting grooves are provided at the bottom of the manhole cover body 2. The slide rods 3 are fixedly mounted and connected to the manhole cover body 2 through the mounting grooves.

[0024] A moving block 4 is slidably mounted on the outer sides of the two slide bars 3 , an L-shaped connecting rod 5 is fixedly mounted on the bottom of the two moving blocks 4 , and a clamping block 6 is fixedly mounted on the opposite sides of the two L-shaped connecting rods 5 .

[0025] There are snap-fitting grooves on opposite sides of the inner wall of the well seat 1, and the snap-fitting blocks 6 are snap-fitted to the well seat 1 through the snap-fitting grooves, which facilitates the preliminary fixing of the manhole cover body 2 to the inner wall of the well seat 1 and then facilitates the fixing and positioning of the snap-fitting blocks 6.

[0026] A connecting column 7 is fixedly installed on the top of the two moving blocks 4, and a push plate 8 is fixedly installed on the top of the two connecting columns 7. A placement groove is opened on the top of the manhole cover body 2, and the push plate 8 is located inside the placement groove. A moving hole is opened inside the manhole cover body 2, and the connecting column 7 extends to the inside of the placement groove through the moving hole.

[0027] Two screw rods 9 are threadedly connected to the inner part of the manhole cover body 2 . A first threaded hole is provided inside the manhole cover body 2 , and the screw rods 9 are threadedly connected to the manhole cover body 2 through the first threaded hole.

[0028] It should be noted that a mounting seat 10 is fixedly installed on the top of the two screw rods 9. The mounting seat 10 is located inside the fixed block, and the fixed block is fixedly connected to the push plate 8 to reduce the risk of thieves using other tools to move the mounting seat 10.

[0029] A groove is provided on the top of the mounting base 10. When a user wants to rotate the groove, a matching tool is required to reduce the risk of the manhole cover being stolen.

[0030] It should be noted that the anti-theft locking structure of the ductile iron manhole cover is convenient for fixing the manhole cover inside the manhole seat 1 by installing a snap-on component, reducing the risk of the manhole cover being stolen, making the manhole cover installation more stable, and improving the use effect of the manhole cover.

[0031] Specifically, when using the anti-theft locking structure of the ductile iron manhole cover, the two push plates 8 are moved in opposite directions with the help of a tool, and the two moving blocks 4 are driven to move on the slide rod 3 through the connecting column 7, so that the two clamping blocks 6 move synchronously in opposite directions, and then the manhole cover body 2 is placed and installed on the manhole seat 1, and then the two push plates 8 are moved in opposite directions with the help of a tool again, so that the clamping blocks 6 are fully clamped with the clamping grooves of the manhole seat 1, and then a tool matching the top groove of the mounting seat 10 is taken for insertion, and then the mounting seat 10 is rotated to drive the screw 9 to rotate, so that the screw 9 is installed and connected with the manhole cover body 2, and then the clamping block 6 is limited and clamped, so that the manhole cover body 2 is more stably installed and connected with the manhole seat 1.

[0032] The fixing assembly includes a block 11 that is clamped to the top of the manhole cover body 2, a sealing ring 12 is fixedly installed on the outside of the block 11, a bolt 13 is threadedly connected to the top of the manhole cover body 2, and a second threaded hole is opened at the top of the manhole cover body 2, and the bolt 13 is threadedly connected to the manhole cover body 2 through the second threaded hole.

[0033] It should be noted that the anti-theft locking structure of the ductile iron manhole cover is easy to hide the mounting seat 10 by installing a fixing component, thereby reducing the risk of the manhole cover being stolen, improving the quality of the manhole cover installation, and reducing the phenomenon of theft.

[0034] Specifically, the anti-theft locking structure of the ductile iron manhole cover, after the screw 9 is threadedly installed with the manhole cover body 2, the block 11 and the sealing ring 12 are installed and placed in the placement groove opened on the top of the manhole cover body 2, and then the bolt 13 is threadedly connected to the top of the manhole cover body 2 with the help of a tool matching the bolt 13, and the mounting seat 10 is hidden, thereby improving the quality of the manhole cover installation. When a thief steals the manhole cover, two matching operations are required, thereby reducing the number of manhole cover thefts.

[0035] The working principle of the above embodiment is:

[0036] (1) When using the anti-theft locking structure of the ductile iron manhole cover, the two push plates 8 are moved in opposite directions with the help of a tool, and the two moving blocks 4 are driven to move on the slide rod 3 through the connecting column 7, so that the two clamping blocks 6 move synchronously in opposite directions, and then the manhole cover body 2 is placed and installed on the manhole seat 1. Then, with the help of a tool, the two push plates 8 are moved in opposite directions again, so that the clamping blocks 6 are fully clamped with the clamping grooves of the manhole seat 1, and then a tool that matches the top groove of the mounting seat 10 is taken to plug it, and then the mounting seat 10 is rotated to drive the screw 9 to rotate, so that the screw 9 is installed and connected with the manhole cover body 2, and then the clamping block 6 is limited and clamped, so that the manhole cover body 2 is more stably installed and connected with the manhole seat 1.

[0037] (2) The anti-theft locking structure of the ductile iron manhole cover is as follows: after the screw 9 is threadedly installed on the manhole cover body 2, the block 11 and the sealing ring 12 are installed and placed in the placement groove opened on the top of the manhole cover body 2, and then the bolt 13 is threadedly connected to the top of the manhole cover body 2 with the help of a tool that matches the bolt 13, and the mounting seat 10 is hidden, thereby improving the quality of the manhole cover installation. When a thief steals the manhole cover, two matching operations are required, thereby reducing the number of manhole cover thefts.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ductile iron manhole cover anti-theft locking structure, comprising a manhole seat (1) and a manhole cover body (2), characterized in that: A clamping assembly is installed on the manhole cover body (2), and a fixing assembly is installed on the manhole cover body (2); The clamping assembly comprises two sliding rods (3) fixedly mounted inside the manhole cover body (2); a moving block (4) is slidably mounted on the outer sides of the two sliding rods (3); an L-shaped connecting rod (5) is fixedly mounted on the bottoms of the two moving blocks (4); and a clamping block (6) is fixedly mounted on the opposite sides of the two L-shaped connecting rods (5); The tops of the two moving blocks (4) are fixedly mounted with connecting columns (7), the tops of the two connecting columns (7) are fixedly mounted with push plates (8), the internal threads of the manhole cover body (2) are connected with two screw rods (9), and the tops of the two screw rods (9) are fixedly mounted with mounting seats (10).

2. The anti-theft locking structure for a ductile iron manhole cover according to claim 1, characterized in that: The fixing assembly comprises a stopper (11) clamped to the top of the manhole cover body (2), a sealing ring (12) is fixedly installed on the outside of the stopper (11), and a bolt (13) is threadedly connected to the top of the manhole cover body (2).

3. The anti-theft locking structure for a ductile iron manhole cover according to claim 1, characterized in that: Two mounting grooves are provided at the bottom of the manhole cover body (2), and the slide rod (3) is fixedly mounted and connected to the manhole cover body (2) via the mounting grooves.

4. The anti-theft locking structure for a ductile iron manhole cover according to claim 1, characterized in that: The opposite sides of the inner wall of the well seat (1) are provided with a clamping groove, and the clamping block (6) is clamped with the well seat (1) through the clamping groove.

5. The anti-theft locking structure for a ductile iron manhole cover according to claim 1, characterized in that: A placement slot is provided on the top of the manhole cover body (2), and the push plate (8) is located inside the placement slot. A movable hole is provided inside the manhole cover body (2), and the connecting column (7) extends into the placement slot through the movable hole.

6. The anti-theft locking structure for a ductile iron manhole cover according to claim 1, characterized in that: A first threaded hole is provided inside the manhole cover body (2), and the screw rod (9) is threadedly connected to the manhole cover body (2) through the first threaded hole.

7. The anti-theft locking structure for a ductile iron manhole cover according to claim 2, characterized in that: A second threaded hole is provided on the top of the manhole cover body (2), and the bolt (13) is threadedly connected to the manhole cover body (2) through the second threaded hole.

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