Composite material anti-settling well lid

Abstract

The utility model discloses a composite material anti -settling type well lid relates to well lid technical field, including base and with the hinge cover of base, base and cover are all made of SMC composite material, and the hook for connecting the anti -fall net is established to the inner chamber wall of base, and the support part of the cover is established to the inner chamber middle part, and the buffer rubber block is established between the cover and support part. Its beneficial effect is that: SMC composite material gives consideration to strength and anticorrosion, and can prevent theft without recycling value, solves the problem that traditional well lid is easy to rust and breakage, and the hook and anti -fall net cooperate to prevent falling accidents, and the buffer rubber block reduces the collision noise and abrasion, and the whole conforms to the environmental protection trend, reduces transportation, installation and maintenance cost, prolongs the service life, and is applicable to the scene such as municipal administration.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, specifically to a composite material anti-settlement manhole cover. Background Technology

[0002] As a key component in municipal, communication, water supply and drainage infrastructure, manhole covers are mainly used to cover the openings of underground pipes to ensure the safety of pedestrians and vehicles, while also requiring a certain load-bearing capacity and durability.

[0003] Currently, most manhole covers on the market are made of cast iron, concrete, or ordinary composite plastic. Among them, cast iron manhole covers have good load-bearing capacity, but they have problems such as high material density, easy corrosion, and high recycling value leading to a high theft rate. Once stolen, manhole covers can easily create safety hazards at the manhole opening, causing pedestrians to fall. Concrete manhole covers are brittle and easily break under external impact, have a short service life, and also lack fall protection. Ordinary plastic manhole covers are not strong enough to meet the load-bearing requirements of municipal roads and other scenarios, and are prone to deformation and damage.

[0004] Even though some manhole covers have been equipped with anti-fall structures, such as using metal hooks to connect to the anti-fall net, the traditional metal hooks have poor compatibility with the base material and are prone to failure due to environmental corrosion after long-term use. Furthermore, there is generally a lack of effective cushioning blocks between the base and the cover. When vehicles or pedestrians drive over the manhole cover, the cover and base make direct, hard contact, which not only generates noise but also accelerates wear on both, shortening the overall lifespan of the manhole cover. At the same time, it fails to mitigate the damage to the manhole cover structure from instantaneous impacts, leaving the risk of cover breakage and anti-fall failure remaining.

[0005] Furthermore, the production of traditional manhole covers consumes a lot of energy, and the recycling costs of some materials (such as cast iron) are high, which does not conform to the current trend of green and environmentally friendly industrial development. Therefore, developing a manhole cover that combines high strength, corrosion resistance, fall prevention, low noise, and environmental friendliness has become a key requirement to overcome the shortcomings of existing technologies. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a composite material anti-settlement manhole cover.

[0007] The technical solution adopted by this utility model is: a composite material anti-settlement manhole cover, including a base and a cover body hinged to the base. Both the base and the cover body are made of SMC composite material. The inner wall of the base is provided with hooks for connecting anti-fall nets. The middle of the inner cavity of the base is provided with a support part for supporting the cover body. A buffer rubber block is provided between the cover body and the support part.

[0008] Furthermore, a plurality of grooves are provided at intervals on the end face of the support portion of the bottom wall of the inner cavity, and the aforementioned buffer rubber blocks are provided in the grooves.

[0009] Furthermore, the hook and the base are integrally molded and both are made of SMC composite material.

[0010] Furthermore, the groove has a trapezoidal cross-section that gradually narrows at the lower end, and the buffer block is interference-fitted with the groove.

[0011] Furthermore, the inner wall of the bottom of the base has a flared structure that is narrower at the top and wider at the bottom.

[0012] Furthermore, the upper end of the base has an outwardly extending support ring, and the lower surface of the support ring is provided with a number of reinforcing ribs at intervals.

[0013] Furthermore, the upper surface of the support ring is provided with a concave surface, and multiple pairs of first "T"-shaped anti-slip patterns are provided at intervals within the concave surface. The vertical parts of each pair of first "T"-shaped anti-slip patterns are arranged opposite each other, and anti-slip protrusions are provided between each pair of first "T"-shaped anti-slip patterns.

[0014] Furthermore, the surface of the cover is provided with a number of second "T"-shaped anti-slip patterns and vertical anti-slip patterns at intervals.

[0015] Furthermore, the base is provided with a hinge groove, and the two sides of the hinge groove are provided with "U"-shaped grooves that connect with the hinge shaft on the cover. A pressure cap is detachably connected to the "U"-shaped groove.

[0016] The beneficial effects of this utility model are: 1. Superior material performance, balancing strength and durability: Both the base and the cover in this patent are made of SMC composite material. Compared with traditional cast iron manhole covers, SMC composite material has a lower density and lighter weight, which can reduce transportation and installation costs. Moreover, it has no recycling value, which can fundamentally avoid the safety hazards of manholes caused by theft. At the same time, SMC composite material has excellent anti-corrosion and anti-aging properties, which can effectively resist rainwater and soil erosion, solve the problems of easy corrosion of traditional cast iron manhole covers, easy cracking of concrete manhole covers, and insufficient strength of ordinary plastic manhole covers, and significantly extend the overall service life of manhole covers, meeting the load-bearing requirements of high-frequency use scenarios such as municipal roads.

[0017] 2. Stable and reliable anti-fall structure with strong safety protection: The hooks on the inner wall of the base are used to connect the anti-fall net, and both the hooks and the base are made of SMC composite material, which has high material compatibility and avoids the corrosion failure problem caused by the incompatibility of traditional metal hooks and base materials; the cooperation between the anti-fall net and the hooks can effectively support pedestrians and debris in the event of accidental damage or displacement of the cover, completely eliminating the accident of falling into the manhole. Compared with traditional manhole covers without anti-fall structure or with anti-fall structure that is prone to failure, it significantly improves the safety of use.

[0018] 3. Buffer blocks reduce noise and wear, improving user experience and structural stability: Buffer blocks placed between the cover and the support prevent direct hard contact between the cover and the base. When vehicles or pedestrians run over the manhole cover, the buffer blocks effectively absorb the instantaneous impact, reducing noise from collisions and alleviating urban noise pollution. Furthermore, they reduce wear on the cover and base, slowing down structural aging and extending the manhole cover's lifespan. This solves the problems of traditional manhole covers, which are noisy, wear-prone, and easily damaged due to hard contact.

[0019] 4. In line with green and environmentally friendly trends, reducing the total life cycle cost: SMC composite materials have low energy consumption during the production process and can be recycled and reused through specific processes after disposal. Compared with the high energy consumption and high recycling cost of traditional cast iron manhole covers, it is more in line with the current requirements of green and environmentally friendly industrial development. At the same time, the overall durability of the manhole cover is improved and the frequency of maintenance is reduced, which can reduce the later maintenance costs of municipal departments and has significant economic and environmental benefits.

[0020] In addition to the objectives, features and advantages described above, this utility model has other objectives, features and advantages.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the bottom of this utility model.

[0024] Figure 3 This is a schematic diagram of the upper side of this utility model.

[0025] Figure 4 This is an exploded view of the present invention.

[0026] Figure 1-4 In the middle: 1. Base; 2. Cover; 3. Hook; 4. Support; 5. Buffer rubber block; 6. Groove; 7. Flared structure; 8. Support ring; 9. Reinforcing rib; 10. Concave surface; 11. First "T" shaped anti-slip texture; 12. Anti-slip protrusion; 13. Second "T" shaped anti-slip texture; 14. Vertical anti-slip texture; 15. Hinge groove; 16. Hinge shaft; 17. "U" shaped groove; 18. Pressure cap. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] This utility model provides a composite material anti-settlement manhole cover.

[0030] In this embodiment, refer to Figure 1-3 The composite material anti-settlement manhole cover includes a base 1 and a cover body 2 hinged to the base 1. Both the base 1 and the cover body 2 are made of SMC composite material. The inner wall of the base 1 is provided with a hook 3 for connecting a fall protection net. The middle of the inner cavity of the base is provided with a support part 4 for supporting the cover body. A buffer rubber block 5 is provided between the cover body 2 and the support part 4.

[0031] In the above technical solution, SMC composite material is selected to make the base and cover, and the physical properties of this material are used to replace traditional materials. In addition, hooks are set on the inner wall of the base to provide a stable connection point for the fall protection net and prevent the fall protection net from falling off. At the same time, a support part is set in the middle of the inner cavity of the base to provide support for the cover when it is closed, ensuring that the cover is subjected to balanced force. Finally, a buffer rubber block is set between the cover and the support part to prevent direct hard contact between the two and form an impact force buffer channel.

[0032] SMC composite material replaces traditional cast iron and concrete, solving the problems of cast iron manhole covers being prone to rust and theft, concrete manhole covers being easily broken, and ordinary plastic manhole covers lacking strength. At the same time, it reduces the weight of the manhole cover, lowering transportation and installation costs. Hooks and anti-fall nets work together to build a basic anti-fall protection system, which can support pedestrians and debris when the cover is damaged or displaced, preventing falls. Buffer blocks absorb the impact force when the cover comes into contact with the support, reducing collision noise, reducing wear on both, and extending the service life of the manhole cover, achieving a comprehensive improvement in the "basic functions, safety protection, and durability" of the manhole cover.

[0033] Specifically, a plurality of grooves 6 are provided at intervals on the end face of the support portion of the bottom wall of the inner cavity, and the aforementioned buffer rubber blocks are provided in the grooves 6.

[0034] In this embodiment, by providing grooves at intervals on the end face of the support ring on the bottom wall of the base cavity, a dedicated installation space is provided for the buffer rubber block, limiting the lateral displacement of the buffer rubber block; at the same time, the buffer rubber block is placed in the groove so that the cover only contacts the buffer rubber block when it is closed, and the elastic deformation characteristics of the buffer rubber block are used to absorb the collision force between the cover and the support ring.

[0035] Specifically, the hook and the base are integrally molded and both are made of SMC composite material.

[0036] In this embodiment, the connection between the hook and the base is "integrated molding", and both are made of the same SMC composite material. By utilizing the molding process characteristics of SMC composite material, the hook and the base are molded simultaneously during the production process, avoiding later assembly and connection. At the same time, by unifying the materials, the material differences between the hook and the base are eliminated, avoiding compatibility issues between different materials.

[0037] Specifically, the groove has a trapezoidal cross-section that gradually narrows at the bottom, and the buffer block is interference-fitted with the groove.

[0038] In this embodiment, the structural compatibility between the groove and the buffer block is as follows: First, the cross-section of the groove is designed as a "trapezoidal structure that gradually narrows at the bottom", forming a "wide at the top and narrow at the bottom" limiting space; second, the buffer block and the groove are interference-fitted, and the interference amount is used to achieve a tight fit between the buffer block and the groove. Through the dual effects of the "narrow opening limiting" of the trapezoidal structure and the "tight fixing" of the interference fit, the longitudinal and lateral displacement of the buffer block is restricted.

[0039] Specifically, the inner wall of the bottom of the base has a flared structure that is narrower at the top and wider at the bottom.

[0040] In this embodiment, the inner wall of the base bottom is designed as a "flared structure that is narrow at the top and wide at the bottom", changing the traditional vertical or equal width structure of the inner wall of the base bottom, so that the inner cavity space of the base bottom gradually expands from the top to the bottom; this structure can optimize the force transmission path at the bottom of the base, and at the same time provide space for the adaptation of the underground pipe well opening and the base, as well as the diversion of liquids such as rainwater.

[0041] Specifically, the upper end of the base has an outwardly extending support ring 8, and the lower surface of the support ring 8 is provided with a number of reinforcing ribs 9 at intervals.

[0042] In this embodiment, an outwardly extending support ring is designed at the upper end of the base. The support ring expands the contact area between the base and the ground, allowing the force on the base to be evenly transmitted to the ground through the support ring. At the same time, reinforcing ribs are provided at intervals on the lower surface of the support ring. The reinforcing ribs increase the structural thickness and bending strength of the support ring, forming a composite load-bearing structure of "support + reinforcing rib".

[0043] Specifically, the upper surface of the support ring is provided with a concave surface 10, and multiple pairs of first "T"-shaped anti-slip patterns 11 are provided at intervals within the concave surface 10. The vertical parts of each pair of first "T"-shaped anti-slip patterns 11 are arranged opposite each other, and anti-slip protrusions 12 are provided between each pair of first "T"-shaped anti-slip patterns.

[0044] In this embodiment, a concave surface is provided on the upper surface of the support ring to provide an installation area for the anti-slip structure; multiple pairs of first "T"-shaped anti-slip patterns are spaced apart in the concave surface, with the vertical parts of each pair of anti-slip patterns facing each other, and the horizontal texture of the "T"-shaped structure is used to increase the friction of the contact surface; at the same time, anti-slip protrusions are provided between each pair of "T"-shaped anti-slip patterns, and the anti-slip performance of the support ring surface is improved through the dual anti-slip structure of the protrusions and the "T"-shaped patterns.

[0045] Specifically, the surface of the cover is provided with a plurality of second "T"-shaped anti-slip patterns 13 and vertical anti-slip patterns 14 at intervals.

[0046] In this embodiment, a second "T"-shaped anti-slip pattern and a vertical anti-slip pattern are spaced apart on the surface of the cover. The two anti-slip patterns in different directions form a cross anti-slip structure: the "T"-shaped anti-slip pattern uses the combination of horizontal and vertical patterns to increase friction in different directions; the vertical anti-slip pattern further supplements the vertical friction through the vertical strip structure. The two work together to improve the overall anti-slip performance of the cover surface.

[0047] Specifically, the base is provided with a hinge groove 15, and the two sides of the hinge groove 15 are provided with "U"-shaped grooves 17 that are connected to the hinge shaft 16 on the cover. A pressure cap 18 is detachably connected to the "U"-shaped groove.

[0048] In this embodiment, as Figure 4 As shown, the two ends of the hinge shaft of the cover are connected into the "U" groove and then pressed and fixed by the detachable pressure cap. The pressure cap and the base can be detachably connected by fasteners such as bolts. After the cover is damaged, it is convenient to replace the cover separately, reducing the cost of use, maintenance and labor.

[0049] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A composite material anti-settlement manhole cover, comprising a base and a cover body hinged to the base, characterized in that: Both the base and the cover are made of SMC composite material. The inner wall of the base is provided with hooks for connecting the fall protection net. The middle of the inner cavity of the base is provided with a support part for supporting the cover. A buffer rubber block is provided between the cover and the support part.

2. The composite material anti-settlement manhole cover according to claim 1, characterized in that: The support end face of the bottom wall of the inner cavity is provided with several grooves at intervals, and the aforementioned buffer rubber blocks are provided in the grooves.

3. The composite material anti-settlement manhole cover according to claim 1, characterized in that: The hook and base are integrally molded and both are made of SMC composite material.

4. The composite material anti-settlement manhole cover according to claim 2, characterized in that: The groove has a trapezoidal cross-section that gradually narrows at the bottom, and the buffer block is interference-fitted with the groove.

5. The composite material anti-settlement manhole cover according to claim 1, characterized in that: The inner wall of the base bottom has a flared structure that is narrower at the top and wider at the bottom.

6. The composite material anti-settlement manhole cover according to claim 1, characterized in that: The base has an outwardly extending support ring at its upper end, and the lower surface of the support ring is provided with a number of reinforcing ribs at intervals.

7. The composite material anti-settlement manhole cover according to claim 6, characterized in that: The upper surface of the support ring is provided with a concave surface, and multiple pairs of first "T"-shaped anti-slip patterns are provided at intervals within the concave surface. The vertical parts of each pair of first "T"-shaped anti-slip patterns are aligned with each other, and anti-slip protrusions are provided between each pair of first "T"-shaped anti-slip patterns.

8. The composite material anti-settlement manhole cover according to claim 7, characterized in that: The surface of the cover is provided with several second "T" shaped anti-slip patterns and vertical anti-slip patterns at intervals.

9. The composite material anti-settlement manhole cover according to claim 1, characterized in that: The base is provided with a hinge groove, and on both sides of the hinge groove are U-shaped grooves that connect to the hinge shaft on the cover. A pressure cap is detachably connected to the U-shaped groove.

Images