Manhole cover convenient to maintain

Abstract

The utility model is suitable for building structure construction equipment field provides a convenient maintenance's manhole cylinder cover, include: cylinder, including a ring wall and its surrounding and become the man access; cylinder cover, with the cylinder shape adaptation and can move and close in the cylinder one side, is used to the man access is closed, the ring wall is away from the one end of cylinder cover and extends outwardly has the baffle, by this, the utility model constructs integral type's cylinder cover structure, directly places the manhole cylinder cover in the corresponding support formwork position, need not traditional manhole formwork branch to draw; The cylinder itself structure is stable, avoids the traditional roof manhole pouring process, is subjected to the transverse displacement problem of concrete deformation, the cylinder cover integral type fast installation and removal, solves the traditional manhole cover needs the later period installation, the problem that sealing and structure stability are poor.

Description

Technical Field

[0001] This utility model relates to the field of building structure construction equipment, and in particular to a manhole cover that is easy to maintain. Background Technology

[0002] Currently, existing roof manholes are perforations constructed during the building construction process, often pre-installed during the building's construction phase. Maintenance personnel can access the upper part of the building's roof through these manholes to perform maintenance work, facilitating convenient access for inspection, cleaning, repair, and replacement.

[0003] The construction method for manholes on the roof is generally as follows: during the main construction, the holes are reserved and the manhole formwork is erected on the roof. After the concrete is poured, the formwork is removed and the manhole cover is installed on the roof. During maintenance, the workers pull open the cover to enter for inspection.

[0004] The existing construction methods mainly cause the following problems: 1) The formwork erection and dismantling process is cumbersome, especially the narrow working surface for the formwork erection inside the manhole on the roof, which is time-consuming and labor-intensive, and the quality of the formwork reinforcement is difficult to guarantee, often resulting in deformation and grout leakage. 2) There are no reliable reinforcement measures after the formwork is positioned, and the reserved hole position is easy to shift. 3) The manhole cover on the roof needs to be installed later, and the sealing and structural stability are poor.

[0005] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] To address the aforementioned shortcomings, the purpose of this utility model is to provide an easy-to-maintain manhole cover with an integrated cover structure, which has three advantages: 1) The manhole cover can be placed directly on the corresponding support template position without the need for traditional manhole template support and disassembly; 2) The cylinder itself has a stable structure, avoiding the problem of lateral displacement caused by concrete deformation during the pouring of manholes on traditional roofs; 3) The integrated cover allows for quick installation and disassembly, solving the problems of traditional manhole covers requiring later installation and having poor sealing and structural stability.

[0007] To achieve the above objectives, this utility model provides an easy-to-maintain manhole cover, comprising: a cylinder body, including an annular wall penetrating the wall and a manhole passage formed by the annular wall; and a cover, which is adapted to the shape of the cylinder body and can be movably fitted onto one side of the cylinder body for sealing the manhole passage.

[0008] According to the present invention, the manhole cover is easy to maintain, and the annular wall extends outward from the end away from the cover with a retaining edge.

[0009] According to the present invention, the easy-to-maintain manhole cover has a positioning element on the side, which is connected to the floor slab reinforcement to position the cylinder for rotation.

[0010] According to the present invention, the easy-to-maintain manhole cover has a positioning member that is plate-shaped, with one end connected to the sidewall or the outer wall of the cylinder, and the other end extending outward into the space between the two sets of floor slab reinforcement bars.

[0011] According to the present invention, the easy-to-maintain manhole cover has a slot on the outer wall and / or edge of the cylinder for inserting a positioning element, which provides support for the positioning element.

[0012] According to the present invention, the easy-to-maintain manhole cover has a positioning member consisting of a hook structure with one end connected to the outer wall of the cylinder and / or the outer wall of the sidewall, and the other end extending outward and turning downward; the positioning member is suspended and spans across the diagonal space intersected by two sets of floor slab reinforcement bars.

[0013] According to the present invention, the easy-to-maintain manhole cover has a threaded end; a through hole is provided on the flange for the end of the positioning component to pass through; and a pair of mating nuts are screwed onto the end of the positioning component for the installation and positioning of the positioning component.

[0014] According to the present invention, in the axial direction of the easy-to-maintain manhole cover, the top of the positioning member is lower than the outer edge of the cover.

[0015] This utility model provides an easy-to-maintain manhole cover, comprising: The cylindrical body includes an annular wall penetrating the wall and an access passage formed by the annular wall. The shape of the annular wall can be set as needed, as shown in the figure. To improve the stability of the structure itself, the cylindrical body of this application adopts a cylindrical structure. The access passage is for maintenance personnel to pass through, and auxiliary components can be added for this purpose, such as a ladder installed on the inner wall of the cylindrical body to facilitate climbing. A cylindrical cover, adapted to the shape of the cylindrical body and movable, is fitted to one side of the cylindrical body to seal the access passage. The cylindrical cover adopts a corresponding cylindrical cover body. Regarding the connection, the connection between the cylindrical cover and the cylindrical body can be achieved by a hinge connection (the cylindrical cover rotates around the hinge axis to open or close the access passage) or by a direct snap-fit ​​method (no connecting structure; the access passage is opened or closed by removing or snapping the cylindrical cover). The annular wall extends outward from the end away from the cylindrical cover with a retaining edge. The retaining edge increases the contact area with the supporting template, improving the sealing effect and preventing grout leakage. Simultaneously, reinforcing ribs are provided between the retaining edge and the cylindrical body to increase the supporting strength of both.

[0016] In summary, the technical effect of this utility model is that by assembling the access cylinder and the cylinder cover into a single unit, a one-piece structure is constructed, which has three advantages: The manhole cover can be placed directly at the corresponding support template position, eliminating the need for traditional manhole template support and dismantling. 2) The cylinder itself has a stable structure, avoiding the problem of lateral displacement caused by concrete deformation during the pouring of manholes on traditional roofs; 3) The integrated cylinder cover allows for quick installation and removal, solving the problems of traditional manhole covers requiring later installation and having poor sealing and structural stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the cylinder cover and cylinder body of this utility model, which are connected by a hinge; Figure 2 This is a structural schematic diagram of the additional positioning component of this utility model; Figure 3 yes Figure 2 An explosion diagram; Figure 4 This is a diagram showing the fit between the present invention and the floor slab reinforcement in the first embodiment; Figure 5 This is a diagram showing the integration of the present invention with the floor slab reinforcement in the second embodiment; Figure 6 This is a cross-sectional view of the present invention after casting in the second embodiment; Figure 7 This is a structural diagram of the positioning component in the second embodiment; In the diagram, 00-floor slab reinforcement, 01-angled space, 02-diagonal space, 04-formwork support, 1-cylinder, 11-accessible passage, 12-fitting nut, 13-slot, 2-cylinder cover, 3-edge guard, 4-positioning component, 6-reinforcing rib. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] 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 specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] See Figure 1 This utility model provides an easy-to-maintain manhole cover, which includes: The cylindrical body 1 includes an annular wall that penetrates the wall and an access passage 11 formed by the annular wall. The shape of the annular wall can be set as needed, as shown in the figure. In order to improve the stability of the structure itself, the cylindrical body 1 of this application adopts a cylindrical structure. The access passage 11 is used for maintenance personnel to pass through. For this purpose, auxiliary components can be added, such as a ladder installed on the inner wall of the cylindrical body 1, to facilitate climbing.

[0022] A cylindrical cover 2, adapted to the shape of the cylindrical body and movable, is fitted to one side of the cylindrical body to block the access passage 11, as shown in the figure. The cylindrical cover 2 is a corresponding cylindrical cover. In terms of connection, the cylindrical cover 2 is connected to the cylindrical body 1 by a hinge (the cylindrical cover 2 rotates around the hinge axis to open or close the access passage 11). Figure 1 (as shown), or, by directly fastening (without a connecting structure, by removing or fastening the cylinder cover 2, the access passage 11 can be opened or closed), Figure 3 (As shown).

[0023] Based on the above structure, the access cylinder 1 and the cylinder cover 2 are assembled into a whole to construct an integrated structure. This has three advantages: 1) The access cylinder cover can be placed directly at the corresponding support template position without the need for traditional access manhole template support and disassembly; 2) The cylinder 1 itself has a stable structure, avoiding the problem of lateral displacement caused by concrete deformation during the pouring of traditional roof manholes; 3) The integrated cylinder cover can be quickly installed and disassembled, solving the problems of traditional access manhole covers requiring later installation, poor sealing, and structural stability.

[0024] See Figure 3Specifically, as shown in this embodiment, the annular wall extends outward from the end away from the cylinder cover 2 with a retaining edge 3. The retaining edge 3 increases the contact area with the supporting template, improves the sealing effect, and prevents grout leakage. At the same time, a reinforcing rib 6 is provided between the retaining edge 3 and the cylinder 1 to increase the supporting strength of both.

[0025] In some embodiments of this utility model, the retaining edge 3 is provided with a positioning element 4, which is connected to the floor slab reinforcement 00 for positioning the cylinder 1 by turning.

[0026] See Figure 4 In the first embodiment, the positioning member 4 is a plate-shaped structure, with one end connected to the flange 3 or the outer wall of the cylinder 1. This connection can be achieved by welding or by insertion. The other end extends outward into the included angle space 01 where the two sets of floor slab reinforcement bars 00 intersect. By utilizing the included angle space to limit the positioning member 4, it is prevented from moving, thus further realizing the rotational positioning of the cylinder 1.

[0027] To facilitate the installation of the positioning element 4 and the cylinder 1, the outer wall and / or the flange 3 of the cylinder 1 are provided with a slot 13 for inserting the positioning element 4, which provides support for the positioning element 4. During installation, the cylinder 1 can be placed first, and then the positioning element 4 can be inserted between the slot 13 and the included space.

[0028] See Figure 2 , Figure 3 , Figure 5 , Figure 7 In another embodiment, based on the above embodiment, in order to ensure the positioning of the cylinder 1 on its axis, that is, to ensure the positioning between the cylinder 1 and the supporting template 04, and to avoid deformation caused by its own weight squeezing the supporting template, resulting in grout leakage, the positioning member is a hook structure formed by one end being connected to the outer wall of the cylinder 1 and / or the outer wall of the sidewall 3, and the other end extending outward and turning downward; the positioning member is suspended and spans across the diagonal space 02 intersected by two sets of floor slab reinforcement 00. By fixing the hook structure in the diagonal space, the rotational positioning of the cylinder 1 is achieved. At the same time, since the hook structure is suspended and supported on the reinforcement, the axial downward fall of the cylinder 1 is avoided.

[0029] Meanwhile, to facilitate the installation of the positioning component, the end of the positioning component is threaded; a through hole is provided on the flange 3 for the end of the positioning component to pass through; a pair of mating nuts 12 are screwed onto the end of the positioning component for installation and positioning. During installation, after assembling the positioning component onto the cylinder 1, it is lowered to the installation position, and the hook structure naturally snaps into the diagonal space where the two sets of floor slab reinforcement bars 00 intersect.

[0030] It should be noted that during the pouring process, the positioning component can be directly embedded in the concrete.

[0031] In addition, in order to avoid the positioning member interfering with the operation of the cylinder cover 2, in this application, the top of the positioning member 4 is lower than the outer edge of the cylinder cover 2 in the axial direction.

[0032] In summary, this utility model provides a manhole cover that is easy to maintain. It includes: The cylindrical body includes an annular wall penetrating the wall and an access passage formed by the annular wall. The shape of the annular wall can be set as needed, as shown in the figure. To improve the stability of the structure itself, the cylindrical body of this application adopts a cylindrical structure. The access passage is for maintenance personnel to pass through, and auxiliary components can be added for this purpose, such as a ladder installed on the inner wall of the cylindrical body to facilitate climbing. A cover, adapted to the shape of the cylindrical body and movable, is fitted to one side of the cylindrical body to seal the access passage. The cover adopts a corresponding cylindrical cover body. In terms of connection, the connection between the cover and the cylindrical body can be by hinge (the cover rotates around the hinge axis to open or close the access passage) or by direct fastening (no connecting structure, the access passage is opened or closed by removing or fastening the cover). The end of the annular wall away from the cover extends outward with a retaining edge. The retaining edge increases the contact area with the supporting template, increases the sealing effect, and prevents grout leakage. At the same time, a reinforcing rib is provided between the retaining edge and the cylindrical body to increase the supporting strength of both.

[0033] In summary, the technical effect of this utility model is that by assembling the access cylinder and the cylinder cover into a single unit, a one-piece structure is constructed, which has three advantages: The manhole cover can be placed directly at the corresponding support template position, eliminating the need for traditional manhole template support and dismantling. The cylinder itself has a stable structure, avoiding the problem of lateral displacement caused by concrete deformation during the pouring of manholes on traditional roofs; 3. The integrated cylinder cover allows for quick installation and removal, solving the problems of traditional manhole covers requiring later installation and having poor sealing and structural stability.

[0034] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A manhole cover that is easy to maintain, characterized in that, include: The cylindrical body includes a ring wall that runs through the wall and an access passage formed by the ring wall; A cylinder cover, which is adapted to the shape of the cylinder and can be movably attached to one side of the cylinder, is used to block access passageways.

2. The easy-to-maintain manhole cover according to claim 1, characterized in that, The annular wall has a retaining edge extending outward from the end away from the cylinder cover.

3. The easy-to-maintain manhole cover according to claim 2, characterized in that, The retaining edge is equipped with a positioning component, which is connected to the floor slab reinforcement to position the cylinder for rotation.

4. The easy-to-maintain manhole cover according to claim 3, characterized in that, The positioning element is a plate-shaped structure, with one end connected to the edge or outer wall of the cylinder, and the other end extending outward into the space between the intersection of two sets of floor slab reinforcement bars.

5. The easy-to-maintain manhole cover according to claim 4, characterized in that, The outer wall of the cylinder and / or the edge are provided with slots for the insertion of positioning components, which are used to provide support for the positioning components.

6. The easy-to-maintain manhole cover according to claim 3, characterized in that, The positioning element is a barb structure consisting of one end connected to the outer wall of the cylinder and / or the outer wall of the flange, and the other end extending outward and turning downward. The positioning element is suspended and spans across the diagonal space where the two sets of floor slab reinforcement bars intersect.

7. The easy-to-maintain manhole cover according to claim 6, characterized in that, The end of the positioning component has a threaded structure; the flange has a through hole for the end of the positioning component to pass through; A pair of mating nuts are screwed onto the end of the positioning component for installation and positioning.

8. The easy-to-maintain manhole cover according to claim 3, characterized in that, In the axial direction, the top of the positioning element is lower than the outer edge of the cylinder cover.

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