Well lid
By designing a manhole cover structure that includes multiple nested engagement and threaded connections, the problem of difficulty in installing existing manhole covers and ensuring support performance, safety and reliability is solved, and the convenient installation and effective theft protection of manhole covers are achieved.
Patent Information
- Application Number
- CN202420248644.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The existing manhole covers are difficult to install in group during use, and it is difficult to ensure their support performance, safety and reliability, and there is a phenomenon of stolen.
A manhole cover is designed, including a mounting seat, a fixing plate, a support plate, an outer support strip, a connecting chain, a limiting plate, a manhole cover plate, a mounting block, a locking screw, a cover sleeve, a locking nut and a restriction cover. Through the nested engagement and threaded connection of these components, the positioning and fixing of the manhole cover plate is achieved, the support performance and safety of the manhole cover are enhanced, and the anti-theft function is provided.
The manhole cover is easy to install, improves its support performance and safety, reduces the risk of theft, and meets the reliability and anti-theft requirements for the manhole cover.
Smart Images

Figure CN222666873U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of manhole covers, in particular to a manhole cover. Background Art
[0002] Manhole covers are used to cover deep wells in roads or homes to prevent people or objects from falling. They are mainly round and square in shape and are usually made of reinforced cement, metal, reinforced plastic and other materials. They are widely used in green belts, sidewalks, motor vehicle lanes, docks, alleys, etc.
[0003] For example, a Chinese utility model patent with authorization announcement number CN213836963U discloses a manhole cover, which relates to the technical field of road sewage manhole covers. The manhole cover includes a mounting seat with a through hole and a cover plate for covering the through hole. The cover plate is provided with a clamping device, and the clamping device is detachably connected to the mounting seat. By adopting the utility model, the cover plate can be fixed to the mounting seat by the clamping device, is not easy to move, and reduces the risk of the cover plate being washed away by water.
[0004] For example, a Chinese utility model patent with authorization announcement number CN215165867U discloses a manhole cover, including a mounting groove, which is provided with a pair and is symmetrically arranged on both sides of the manhole cover groove; a limiting groove is provided on the manhole cover groove, corresponding to the mounting groove, and the limiting groove is connected to the corresponding mounting groove; an arc block, one end of which is rotatably installed in the mounting groove, and its top end extends upward from the mounting groove to the mounting groove; a sliding groove is provided on the manhole cover groove, corresponding to the limiting groove, and the sliding groove is connected to the corresponding limiting groove, and compared with each limiting groove, the corresponding sliding groove and the mounting groove are respectively located on both sides thereof. Compared with the prior art in which a hook is used to hook the manhole cover, the manhole cover is lifted, and the position between the manhole cover and the manhole cover groove needs to be constantly calibrated during installation, the manhole cover provided by the utility model is more labor-saving during installation and easy to operate.
[0005] However, the existing manhole covers are generally difficult to assemble and install during use, and it is difficult to ensure their supporting performance, safety and reliability, and there is a phenomenon of theft. Therefore, we propose a manhole cover to solve the above problems. Utility Model Content
[0006] The purpose of the utility model is to provide a manhole cover to solve the problem that the existing manhole covers mentioned in the above background technology are generally difficult to assemble and install during use, and it is difficult to ensure their supporting performance, safety and reliability, and there is a problem of theft.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manhole cover, comprising: a mounting seat, a support plate arranged on the upper side of the middle of the mounting seat, and a manhole cover plate fitted on the support plate;
[0008] Also includes:
[0009] A fixing plate fixed thereto is symmetrically arranged on the inner side of the left end of the mounting seat, and an outer support bar is welded and fixed on the lower side of the outer end of the mounting seat;
[0010] The manhole cover plate is nested and fitted on the upper inner end of the mounting seat, and the manhole cover plate units are fitted and connected to each other, and a mounting block fixedly connected to the left end of the manhole cover plate is symmetrically arranged on the inner side.
[0011] Preferably, the support plate is nested and fits inside the middle part of the mounting seat, and the left end of the support plate is snap-fitted to the inner side of the fixing plate, and the support plate is connected to an outer support bar arranged at its outer end via a connecting chain.
[0012] Preferably, a limiting plate fixed thereto is symmetrically arranged on the upper side of the right end of the mounting seat, and the limiting plate is snap-fittedly connected to the manhole cover plate arranged outside it.
[0013] Preferably, a locking screw is nested and installed in the mounting block, and a shielding sleeve is nested and arranged on the outer side of the upper end of the locking screw, and the shielding sleeve is nested and fits on the inner side of the upper end of the mounting block.
[0014] Preferably, the outer side of the lower end of the locking screw is threadedly connected to a locking nut that is fitted with the mounting seat, and a limiting cover is snap-fittedly provided on the outer side of the locking nut, and the limiting cover is fixedly connected to the mounting seat.
[0015] Compared with the prior art, the utility model has the following beneficial effects: the manhole cover is convenient for fixing the textile cloth, assembling and installing the manhole cover, ensuring its supporting performance, ensuring the safety and reliability of the manhole cover, and preventing the manhole cover from being stolen;
[0016] 1. A mounting seat, a fixing plate, a support plate and an outer support strip are provided. The fixing plate is symmetrically fixed on the inner side of the left end of the mounting seat, the mounting seat and the fixing plate are nested with a support plate engaged therewith, and a manhole cover plate nested and engaged with the mounting seat is closely arranged on the support plate, the outer end of the mounting seat is fixedly connected with the outer support strip, the support plate is connected to the outer support strip via a connecting chain, and a mounting block with an inner nested mounting locking screw is symmetrically fixed on the inner side of the left end of the manhole cover plate, and a locking nut engaged with the mounting seat is threadedly connected to the outer side of the lower end of the mounting block, so that the manhole cover can be easily assembled and installed, and its supporting performance can be ensured;
[0017] 2. A support plate, an outer support bar, a connecting chain and a manhole cover plate are provided. Since the support plate is connected to the outer support bar via the connecting chain, a shielding sleeve located in the mounting block is nested on the outer side of the upper end of the locking screw, and a limiting cover fixed to the mounting seat is nested on the outer side of the locking nut. This makes it easy to ensure the safety and reliability of the manhole cover and to prevent theft of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 This is a schematic diagram of the top view structure of the utility model;
[0020] Figure 3 For this utility model Figure 2 A schematic diagram of the cross-sectional structure in the middle side view;
[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-sectional structure viewed from above.
[0022] In the figure: 1. mounting base; 2. fixing plate; 3. supporting plate; 4. outer supporting bar; 5. connecting chain; 6. limiting plate; 7. manhole cover plate; 8. mounting block; 9. locking screw; 10. shielding sleeve; 11. locking nut; 12. limiting cover. DETAILED DESCRIPTION
[0023] 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.
[0024] See also Figure 1-4 The utility model provides a technical solution: a manhole cover, including a mounting seat 1, a fixing plate 2, a supporting plate 3, an outer supporting bar 4, a connecting chain 5, a limiting plate 6, a manhole cover plate 7, a mounting block 8, a locking screw 9, a shielding sleeve 10, a locking nut 11 and a limiting cover 12. When the manhole cover is used, Figure 1 , Figure 2 , Figure 3 and Figure 4 First, the support plate 3 can be nested and arranged inside the middle of the mounting seat 1, so that the support plate 3 and the fixing plate 2 symmetrically fixed inside the mounting seat 1 are snap-fitted and connected, and then the support plate 3 can be connected to the outer support bar 4 through the connecting chain 5, so as to limit the anti-theft of the support plate 3, and then the mounting seat 1 can be placed at the position to be installed, so that the outer support bar 4 fixed at the outer end of the mounting seat 1 is located on the upper side of the wellhead, and then concrete or other casting materials can be poured on the top of the outer support bar 4 and the outside of the mounting seat 1, so as to achieve the purpose of fixing the mounting seat 1;
[0025] Then the manhole cover plate 7 can be nested and fitted on the inner side of the upper end of the mounting seat 1, so that the manhole cover plate 7 is fitted on the upper side of the support plate 3, and the support plate 3 plays a supporting role, so that the manhole cover plate 7 is engaged with the outside of the limiting plate 6 symmetrically fixed on the upper right side of the mounting seat 1, and the limiting plate 6 plays a limiting role on the manhole cover plate 7, and then the locking screw 9 can be installed through the mounting block 8 symmetrically fixed on the inner side of the left end of the manhole cover plate 7. Since the lower side of the left end of the mounting seat 1 is fitted with a limiting cover 12, The locking nut 11, the limiting cover 12 and the mounting seat 1 are fixedly connected, so it is convenient to thread the locking screw 9 and the locking nut 11 to achieve the purpose of limiting the manhole cover plate 7 and the mounting seat 1, and then the shielding sleeve 10 can be nested on the outer side of the upper end of the locking screw 9, so that the shielding sleeve 10 is nested on the inner side of the mounting block 8, and the blocking sleeve 10 plays a shielding role on the locking screw 9, so as to facilitate the assembly and installation of the manhole cover, and facilitate the support performance of the support plate 3;
[0026] like Figure 1 , Figure 3 and Figure 4 During the use of the manhole cover, the manhole cover plate 7 is nested and engaged with the mounting seat 1 and the limit plate 6, and the manhole cover plate 7 is fixed to the mounting seat 1 through the mounting block 8, the locking screw 9 and the locking nut 11, which is convenient for positioning the manhole cover plate 7. A shielding sleeve 10 located in the mounting block 8 is nested on the outer side of the upper end of the locking screw 9, which is convenient for shielding the locking screw 9, thereby ensuring the safety and reliability of the manhole cover and preventing the manhole cover from being stolen. The electrical components contained above are all existing technologies and will not be described in detail here.
[0027] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.
[0028] 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, comprising: A mounting seat (1), a support plate (3) disposed on the upper middle side of the mounting seat (1), and a manhole cover plate (7) disposed in close contact with the support plate (3); It is characterized by further comprising: A fixing plate (2) is symmetrically arranged on the inner side of the left end of the mounting seat (1) and fixed thereto, and an outer support bar (4) is welded and fixed to the lower side of the outer end of the mounting seat (1); The manhole cover plate (7) is nested and fitted on the upper side of the inner end of the mounting seat (1), and the manhole cover plates (7) are fitted and connected to each other, and a mounting block (8) fixedly connected thereto is symmetrically arranged on the inner side of the left end of the manhole cover plate (7).
2. A manhole cover according to claim 1, characterized in that: The support plate (3) is nested and fitted on the inner side of the middle part of the mounting seat (1), and the left end of the support plate (3) is snap-fitted on the inner side of the fixing plate (2), and the support plate (3) is connected to the outer support bar (4) provided at its outer end via a connecting chain (5).
3. A manhole cover according to claim 1, characterized in that: A limiting plate (6) fixed thereto is symmetrically arranged on the upper side of the right end of the mounting seat (1), and the limiting plate (6) is snap-fittedly connected to a manhole cover plate (7) arranged outside the limiting plate (6).
4. A manhole cover according to claim 1, characterized in that: A locking screw (9) is nested and installed in the mounting block (8), and a shielding sleeve (10) is nested and arranged outside the upper end of the locking screw (9), and the shielding sleeve (10) is nested and fits the inner side of the upper end of the mounting block (8).
5. A manhole cover according to claim 4, characterized in that: The outer side of the lower end of the locking screw (9) is threadedly connected to a locking nut (11) that is fitted with the mounting seat (1), and the locking nut (11) is snap-fitted with a limiting cover (12) on the outside, and the limiting cover (12) is fixedly connected to the mounting seat (1).
Citation Information
Patent Citations
Well lid
CN213836963U
Well lid
CN215165867U