Fabricated cast iron resin well lid

Abstract

The utility model relates to the technical field of well lids, in particular to an assembly type cast iron resin well lid which comprises a cast iron well lid outer ring and a resin center well lid, and a center well lid hole matched with the resin center well lid is formed in the middle of the cast iron well lid outer ring. The top end face of the resin center well lid is flush with the top end face of the cast iron well lid outer ring, the automobile rolling resistance can be guaranteed, signal transmission inside and outside the well can be guaranteed, meanwhile, the well lid can be conveniently opened in a knocking mode when the well lid is frozen in northern severe cold areas, and the well lid is particularly suitable for frozen areas.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to an assembled cast iron resin manhole cover. Background Art

[0002] Manhole covers are used to cover roads or deep wells at home to prevent people or objects from falling. In urban road administration, round manhole covers are generally used because they are not easy to tilt and can better protect the safety of pedestrians and vehicles. In colder places in the north, cast iron manhole covers with good resistance to automobile crushing are generally used. However, cast iron manhole covers have the function of shielding wireless signals. When equipment that requires wireless signal transmission is installed in the well, the use of cast iron manhole covers is not conducive to signal transmission; resin manhole covers will hardly weaken signal strength, but in the cold north, manhole covers are easy to freeze. When working in the well, they need to be knocked and vibrated with a hammer to open them. Resin manhole covers are easily cracked. For this reason, a prefabricated cast iron resin manhole cover is designed that can ensure both resistance to automobile crushing and signal transmission inside and outside the well, and is easy to open by knocking and vibration, which is particularly suitable for frozen areas. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the shortcomings of the existing technology, the utility model provides an assembled cast iron resin manhole cover, which can not only ensure the performance of resistance to automobile crushing but also ensure the signal transmission inside and outside the well. At the same time, the manhole cover can be opened by knocking when it is frozen in the severely cold areas of the north. It is particularly suitable for frozen areas.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembled cast iron resin manhole cover, which comprises a cast iron manhole cover outer ring and a resin center manhole cover, a center manhole cover hole matched with the resin center manhole cover is opened in the middle of the cast iron manhole cover outer ring, and the top end surface of the resin center manhole cover is flush with the top end surface of the cast iron manhole cover outer ring.

[0007] Preferably, an inwardly protruding center cover support is provided at the lower edge of the center manhole cover hole, and the resin center manhole cover is placed on the center cover support and fixed in the center manhole cover hole by bolts on the back side thereof.

[0008] Preferably, an inner hole support bolt hole is provided at the center cover support, and a pre-embedded nut is provided at the position where the back of the resin center manhole cover contacts the support, and the resin center manhole cover and the center cover support are fastened together by bolts.

[0009] Preferably, the vertical surface of the center manhole cover hole is provided with an inner hole groove, and the outer circular vertical surface of the resin center manhole cover is provided with a center cover boss, and the center cover boss cooperates with the inner hole groove.

[0010] Preferably, it also includes a manhole ring support, the outer ring portion of the cast iron manhole cover outer ring is provided with a manhole cover outer ring hinge, and the manhole ring support is provided with a manhole seat hinge connecting groove in which the manhole cover outer ring hinge can be embedded and installed.

[0011] Preferably, holes are left at symmetrical positions on the hinge part of the outer ring of the cast iron manhole cover to install locks.

[0012] Preferably, the tops of the outer ring of the cast iron manhole cover and the resin center manhole cover are both provided with a plurality of anti-slip protrusions.

[0013] Preferably, it also includes a manhole ring support that cooperates with the outer ring of the cast iron manhole cover, the manhole ring support is provided with a manhole seat support, the manhole seat support is provided with a support seat rubber pad groove, and a rubber ring is embedded in the support seat rubber pad groove.

[0014] Preferably, a center cover rubber pad groove is provided on the center cover support platform, and a vibration-damping rubber pad is embedded in the center cover rubber pad groove.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides an assembled cast iron resin manhole cover having the following

[0017] Beneficial effects:

[0018] The assembled cast iron resin manhole cover is composed of a cast iron manhole cover outer ring and a resin center manhole cover to form a manhole cover. The resin center manhole cover can ensure signal transmission inside and outside the well, and the setting of the cast iron manhole cover outer ring can ensure the overall resistance to automobile crushing. If the manhole cover is frozen in severe cold areas, the outer edge of the cast iron manhole cover outer ring can be knocked to unfreeze the frozen connection between the outer edge of the cast iron manhole cover outer ring and the manhole ring support, thereby facilitating opening, and avoiding the situation where the resin manhole cover is directly used and cracked. The assembled cast iron resin manhole cover can ensure both resistance to automobile crushing and signal transmission inside and outside the well, and at the same time it is convenient to open the manhole cover by knocking when it is frozen in the northern severe cold areas. It is particularly suitable for frozen areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the outer ring of the cast iron manhole cover and the manhole ring support of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the outer ring of the cast iron manhole cover of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the well ring support of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the outer ring of the cast iron manhole cover of the utility model from other angles;

[0023] Figure 5 It is a structural schematic diagram of the outer ring of the cast iron manhole cover and the manhole ring support from other angles of view of the cooperation of the utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the resin center manhole cover of the utility model;

[0025] Figure 7 It is a schematic diagram of the cross-sectional plan structure of the resin central manhole cover of the utility model.

[0026] Markings in the attached figure: 1. Outer ring of cast iron manhole cover; 2. Center cover support; 3. Resin center manhole cover; 4. Center cover boss 5. Nut; 6. Inner hole groove; 7. Manhole ring support; 8. Manhole seat hinge connecting groove; 9. Manhole ring support rib; 10. Manhole seat support; 11. Support platform rubber pad groove; 12. Inner hole support platform bolt hole; 13. Center cover support groove; 14. Manhole cover outer ring hinge; 15. Lock hole; 16. Anti-slip protrusion; 17. Center manhole cover hole. DETAILED DESCRIPTION

[0027] 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.

[0028] Example:

[0029] See also Figure 1-7 A prefabricated cast iron resin manhole cover, comprising a cast iron manhole cover outer ring 1 and a resin center manhole cover 3. A center manhole cover hole 17 adapted to the resin center manhole cover 3 is opened in the middle of the cast iron manhole cover outer ring 1. The top surface of the resin center manhole cover 3 is flush with the top surface of the cast iron manhole cover outer ring 1. Furthermore, a lock hole 15 is opened on the cast iron manhole cover outer ring 1.

[0030] Specifically, an inwardly protruding center cover support 2 is provided at the lower edge of the center manhole cover hole 17, and the resin center manhole cover 3 is placed on the center cover support 2 and fixed in the center manhole cover hole 17 with bolts on the back side thereof.

[0031] Specifically, the center cover support 2 is provided with an inner support bolt hole 12, and the back of the resin center manhole cover 3 is provided with a pre-embedded nut at the position where the support contacts the support, and the resin center manhole cover 3 and the center cover support 2 are fastened together by bolts.

[0032] Specifically, the vertical surface of the center manhole cover hole 17 is provided with an inner hole groove 6, and the outer circular vertical surface of the resin center manhole cover 3 is provided with a center cover boss 4, and the center cover boss 4 cooperates with the inner hole groove 6. Specifically, the center cover boss 4 and the inner hole groove 6 are both set in a semicircular shape, which is convenient for positioning and installation, and helps the resin center manhole cover 3 to be stably placed in the center cover support 2.

[0033] Specifically, it also includes a manhole ring support 7, the outer ring portion of the cast iron manhole cover outer ring 1 is provided with a manhole cover outer ring hinge 14, and the manhole ring support 7 is provided with a manhole seat hinge connection groove 8 in which the manhole cover outer ring hinge 14 can be embedded. The two parts cooperate to achieve hinge-type opening and closing, preventing the manhole cover from shifting and being stolen. Further, a plurality of manhole ring support ribs 9 are fixedly installed on the outer periphery of the manhole ring support 7.

[0034] Specifically, holes are left at symmetrical positions of the outer ring hinge of the outer ring 1 of the cast iron manhole cover to install locks.

[0035] Specifically, a plurality of anti-slip protrusions 16 are provided on the top of the cast iron manhole cover outer ring 1 and the resin center manhole cover 3 .

[0036] Specifically, it also includes a manhole ring support 7 matched with the outer ring 1 of the cast iron manhole cover, and a manhole support 10 is provided on the manhole ring support 7, and a support rubber pad groove 11 is provided in the manhole support 10, and a rubber ring is embedded in the support rubber pad groove 11 to eliminate the noise generated when the manhole cover is rolled.

[0037] Specifically, a center cover rubber pad groove is provided on the center cover support 2, and a vibration-damping rubber pad is embedded in the center cover rubber pad groove, which can reduce the rigid impact between the resin center manhole cover 3 and the center cover support 2, thereby achieving the effect of reducing noise and extending service life.

[0038] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0039] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0040] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0041] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An assembled cast iron resin manhole cover, characterized in that: The assembled cast iron resin manhole cover comprises a cast iron manhole cover outer ring (1) and a resin center manhole cover (3); a center manhole cover hole (17) adapted to the resin center manhole cover (3) is provided in the middle of the cast iron manhole cover outer ring (1); and the top end surface of the resin center manhole cover (3) is flush with the top end surface of the cast iron manhole cover outer ring (1).

2. The assembled cast iron resin manhole cover according to claim 1 is characterized in that: The lower edge of the central manhole cover hole (17) is provided with a central cover support (2) protruding inwards, and the resin central manhole cover (3) is placed on the central cover support (2) and fixed in the central manhole cover hole (17) by bolts at its back.

3. The assembled cast iron resin manhole cover according to claim 2 is characterized in that: The center cover support (2) is provided with an inner support bolt hole (12), and the back of the resin center manhole cover (3) is provided with a pre-embedded nut at a position where the back of the resin center manhole cover (3) contacts the support, and the resin center manhole cover (3) and the center cover support (2) are fastened together by bolts.

4. The assembled cast iron resin manhole cover according to claim 3 is characterized in that: The vertical surface of the central manhole cover hole (17) is provided with an inner hole groove (6), and the outer circular vertical surface of the resin central manhole cover (3) is provided with a central cover boss (4), and the central cover boss (4) is matched with the inner hole groove (6).

5. The assembled cast iron resin manhole cover according to claim 4 is characterized in that: It also includes a manhole ring support (7), the outer ring portion of the cast iron manhole cover outer ring (1) is provided with a manhole cover outer ring hinge (14), and the manhole ring support (7) is provided with a manhole seat hinge connecting groove (8) in which the manhole cover outer ring hinge (14) can be embedded.

6. The assembled cast iron resin manhole cover according to claim 5, characterized in that: The outer ring (1) of the cast iron manhole cover has holes at symmetrical positions on the hinge part of the outer ring for mounting locks.

7. The assembled cast iron resin manhole cover according to claim 6 is characterized in that: The tops of the cast iron manhole cover outer ring (1) and the resin center manhole cover (3) are both provided with a plurality of anti-slip protrusions (16).

8. The assembled cast iron resin manhole cover according to claim 7, characterized in that: It also includes a manhole ring support (7) that cooperates with the outer ring (1) of the cast iron manhole cover, and a manhole seat support (10) is provided on the manhole ring support (7), and a support rubber pad groove (11) is provided in the manhole seat support (10), and a rubber ring is embedded in the support rubber pad groove (11).

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