Manhole device convenient to open

Abstract

The utility model discloses a manhole device convenient to open, which comprises a manhole shell ring, a manhole flange and a manhole cover, one end of the manhole shell ring is fixed on the surface of a container, the manhole flange is fixed at the end part of the other end of the manhole shell ring, and the manhole cover is detachably connected with the manhole flange; the first sliding assembly is used for enabling the manhole cover to slide in the axial direction of the manhole cover; the second sliding assembly is used for enabling the manhole cover to slide in the direction perpendicular to the axial direction of the manhole cover; the first sliding assembly is arranged in the direction parallel to the axial direction of the manhole cover and fixedly arranged on the surface of the container, and the second sliding assembly is arranged in the direction parallel to the axial direction of the manhole cover and slidably connected to the end, away from the surface of the container, of the first sliding assembly. The manhole cover is connected to the second sliding assembly in a sliding mode. According to the manhole device, large space does not need to be reserved in the manhole opening direction, and opening is convenient.

Description

Technical Field

[0001] This utility model relates to the field of manhole technology, specifically to a manhole device that is easy to open. Background Technology

[0002] Manholes are devices installed on pressure vessels for installation and maintenance. Currently, the main manhole devices on pressure vessels are rotary covers and vertical lifting covers. Both rotary and vertical lifting cover manholes require ample operating space in their opening direction. For example, when a rotary cover manhole is fully opened, at least a space greater than the diameter of the rotary cover is needed; similarly, when a vertical lifting cover is opened, sufficient operating space for the lifting arm is required. If the space in the opening direction of the manhole cover is too narrow, these two types of manhole devices will be difficult to open. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a manhole device that is easy to open, without the need to reserve a large space in the opening direction of the manhole, and is easy to open.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An easily accessible manhole device includes a manhole section, a manhole flange, and a manhole cover. One end of the manhole section is fixed to the surface of a container, the manhole flange is fixed to the other end of the manhole section, and the manhole cover is detachably connected to the manhole flange. The device also includes:

[0006] A first sliding assembly for sliding the manhole cover along its axial direction and a second sliding assembly for sliding the manhole cover in a direction perpendicular to its axial direction; the first sliding assembly is arranged parallel to the axial direction of the manhole cover and fixedly disposed on the container surface, the second sliding assembly is arranged perpendicular to the axial direction of the manhole cover and slidably connected to the end of the first sliding assembly away from the container surface, and the manhole cover is slidably connected to the second sliding assembly.

[0007] Preferably, at least two sets of the first sliding components are provided and symmetrically distributed on both sides of the manhole cover; each set of the first sliding components includes a first slide rail and a first drive cylinder, the first slide rail is fixed to the surface of the container, the cylinder body of the first drive cylinder is fixed to one end of the first slide rail near the surface of the container, and the piston rod of the first drive cylinder is connected to the second sliding component.

[0008] Preferably, the side of the first slide rail is provided with a first locking hole for locking the second sliding component and a corresponding first locking pin. The first locking hole is located on the first slide rail at one end away from the container surface, and the position where the second sliding component is slidably connected to the first slide rail is provided with a hole that cooperates with the first locking hole.

[0009] Preferably, a first limiting block for limiting the second sliding component is vertically fixed on the first slide rail, and the first limiting block is located on the side of the first locking hole away from the container surface.

[0010] Preferably, the second sliding assembly includes a second slide rail and a second drive cylinder. Two second slide rails are provided and symmetrically distributed on both sides of the manhole cover, and the two sides of the manhole cover are slidably connected to the two second slide rails. The two second slide rails are respectively slidably connected to the first slide rail on the same side. The second drive cylinder is disposed between the two second slide rails, and the piston rod of the second drive cylinder is connected to the manhole cover.

[0011] Preferably, a fixing rod is provided between the two second slide rails, and the cylinder body of the second drive cylinder is fixedly installed in the middle of the fixing rod.

[0012] Preferably, manhole cover connecting rods parallel to the second slide rail are fixedly provided on both sides of the manhole cover, and the manhole cover connecting rods on both sides of the manhole cover are slidably connected to the second slide rail on the same side.

[0013] Preferably, a connecting support rod for connecting the manhole cover and the manhole cover connecting rod is provided between the manhole cover connecting rod on both sides of the manhole cover and the manhole cover.

[0014] Preferably, the side of the second slide rail is provided with a second locking hole for locking the manhole cover and a corresponding second locking pin. The second locking hole is located on one end of the second slide rail near the second drive cylinder. Each second slide rail is provided with at least one second locking hole, and the manhole cover connecting rods on both sides of the manhole cover are provided with holes along their length direction that cooperate with the second locking hole.

[0015] Preferably, a second limiting block is provided at one end of the second slide rail near the manhole section to limit the position of the manhole cover when it is closed, and the second limiting block is fixedly disposed inside the second slide rail.

[0016] The beneficial effects of this utility model are as follows:

[0017] This utility model provides an easy-to-open manhole device, including a first sliding component for sliding the manhole cover along its axial direction and a second sliding component for sliding the manhole cover in a direction perpendicular to its axial direction. The first sliding component disengages the manhole cover from the manhole flange, and then the second sliding component moves the manhole cover away from the manhole flange, opening the manhole passage. Moreover, the manhole cover can be opened by controlling the first and second drive cylinders of the first and second sliding components, making opening convenient. In addition, when opening, this manhole device requires only a small space to disengage the manhole cover from the manhole flange, eliminating the need to reserve a large space in the opening direction of the manhole cover, reducing space waste and improving space utilization. Attached Figure Description

[0018] To clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a side view of the manhole device according to Embodiment 1 of this utility model;

[0020] Figure 2 This is a front view of the manhole device according to Embodiment 1 of this utility model;

[0021] Figure 3 This is a schematic diagram of the manhole cover of Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of the process by which the manhole cover is disengaged from the manhole flange using the first sliding component in Embodiment 1 of this utility model;

[0023] Figure 5 This is a schematic diagram of the process of opening the manhole by moving the manhole cover upward using the second sliding component in Embodiment 1 of this utility model;

[0024] Figure 6 This is a schematic diagram of the process by which the manhole cover is disengaged from the manhole flange using the first sliding component in Embodiment 2 of this utility model;

[0025] Figure 7 This is a schematic diagram of the process of opening the manhole by moving the manhole cover to the left using the second sliding component in Embodiment 2 of this utility model.

[0026] The diagram is labeled as follows: 1. Manhole section; 2. Manhole flange; 3. Manhole cover; 301. Manhole cover connecting rod; 302. Connecting support rod; 4. First sliding assembly; 401. First slide rail; 402. First drive cylinder; 403. First locking hole; 404. First limit block; 5. Second sliding assembly; 501. Second slide rail; 502. Second drive cylinder; 503. Fixing rod; 504. Second locking hole; 505. Second limit block. Detailed Implementation

[0027] This utility model provides a manhole device that is easy to open. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following provides a more detailed description of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit this utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The present invention will now be described in detail with reference to the accompanying drawings:

[0030] Example 1

[0031] Reference Figure 1 This embodiment provides a manhole device that is easy to open, specifically including a manhole section 1, a manhole flange 2, a manhole cover 3, a first sliding assembly 4, and a second sliding assembly 5; wherein, one end of the manhole section 1 is fixed to the surface of the container, the manhole flange 2 is fixed to the other end of the manhole section 1, the manhole cover 3 and the manhole flange 2 are detachably connected by several bolts, the manhole cover 3 is provided with a handle, the first sliding assembly 4 is arranged parallel to the axial direction of the manhole cover 3 and fixedly disposed on the surface of the container, the second sliding assembly 5 is arranged perpendicular to the axial direction of the manhole cover 3 and slidably connected to the end of the first sliding assembly 4 away from the surface of the container, and the manhole cover 3 is slidably connected to the second sliding assembly 5.

[0032] The first sliding component 4 is used to make the second sliding component 5 slide in a direction parallel to the axial direction of the manhole cover 3, thereby simultaneously driving the manhole cover 3 to slide in its axial direction, so that the manhole cover 3 is separated from the manhole flange 2. The separation distance is very small, which can be set to a few millimeters or a few centimeters, without occupying a large space. The second sliding component 5 is used to make the manhole cover 3 slide in a direction perpendicular to its axial direction, so that the manhole cover 3 leaves its original position, thereby opening the manhole. After the operation is completed, sliding in the opposite direction can close the manhole.

[0033] Specifically, four sets of the aforementioned first sliding components 4 are symmetrically distributed on both sides of the manhole cover 3. Each set of the first sliding components 4 includes a first slide rail 401 and a first drive cylinder 402. The first slide rail 401 is vertically fixed to the container surface, and the cylinder body of the first drive cylinder 402 is fixed to one end of the first slide rail 401 near the container surface. The piston rod of the first drive cylinder 402 is connected to the second sliding component 5, and the first drive cylinder 402 can drive the second sliding component 5 to slide along the first slide rail 401. The aforementioned first drive cylinder 402 can specifically be a hydraulic cylinder.

[0034] The aforementioned second sliding assembly 5 includes a second slide rail 501 and a second drive cylinder 502. Two second slide rails 501 are symmetrically distributed on both sides of the manhole cover 3, and each side of the manhole cover 3 is slidably connected to one of the two second slide rails 501. Each second slide rail 501 is positioned between two first slide rails 401 on the same side, and both ends of each second slide rail 501 are slidably connected to the first slide rails 401. The aforementioned second drive cylinder 502 is positioned between the two second slide rails 501, and the piston rod of the second drive cylinder 502 is connected to the manhole cover 3. Specifically, the aforementioned second drive cylinder 502 can be a hydraulic cylinder.

[0035] To facilitate the fixing of the second drive cylinder 502, a fixing rod 503 is provided between the two second slide rails 501, and the cylinder body of the second drive cylinder 502 is fixedly installed in the middle of the fixing rod 503.

[0036] To facilitate the sliding connection between the manhole cover 3 and the second sliding assembly 5, manhole cover connecting rods 301 parallel to the second slide rail 501 are fixedly installed on both sides of the manhole cover 3. The manhole cover connecting rods 301 on both sides of the manhole cover 3 are slidably connected to the second slide rail 501. In addition, connecting support rods 302 are respectively provided between the manhole cover connecting rods 301 on both sides of the manhole cover 3 and the manhole cover 3. The two ends of the connecting support rods 302 are fixed to the manhole cover 3 and the manhole cover connecting rod 301 on the same side, respectively.

[0037] To ensure that the second sliding component 5 remains stable after reaching the predetermined position, and to prevent the slide rail from slipping. In this embodiment, a first locking hole 403 for locking the second sliding component 5 and a corresponding first locking pin are provided on the side of the first slide rail 401. One end of the first locking pin is provided with a stop larger than the diameter of the first locking hole 403. The first locking hole 403 is located on the end of the first slide rail 401 away from the container surface. The center of the position where the second slide rail 501 of the second sliding component 5 slides and the first slide rail 401 are slidably connected is provided with a hole that mates with the first locking hole 403. A first limiting block 404 for limiting the second sliding component 5 is also vertically fixed on the first slide rail 401. The first limiting block 404 is located on the side of the first locking hole 403 away from the container surface. The first limiting block 404 is used to limit the sliding distance of the second sliding component 5 so that the second sliding component 5 reaches a predetermined position. When the second sliding component 5 reaches the predetermined position, the hole on the second slide rail 501 is exactly aligned with the first locking hole 403. The first locking pin is inserted into these two holes to fix the second sliding component 5. The aforementioned limiting block 404 can also ensure that the two second slide rails 501 of the second sliding component 5 are on the same horizontal plane after reaching the predetermined position, and that the two ends of each second slide rail 501 are also aligned, ensuring that the manhole cover 3 does not tilt, so that the manhole cover 3 can slide smoothly along the second slide rail 501.

[0038] In addition, to ensure that when the second sliding component 5 reaches the predetermined position, the hole on the second slide rail 501 is exactly aligned with the first locking hole 403, the position of the first locking hole 403 and the first limiting block 404 needs to be determined according to the thickness of the second slide rail 501, that is, the distance between the center of the first locking hole 403 and the first limiting block 404 is half the thickness of the second slide rail 501.

[0039] To ensure the manhole cover 3 remains stable and prevents it from sliding after reaching the predetermined position, this embodiment also provides a second locking hole 504 and a corresponding second locking pin on the side of the second slide rail 501 for locking the manhole cover 3. One end of the second locking pin has a stop larger than the diameter of the second locking hole 504. The second locking hole 504 is located on the second slide rail 501 near the second drive cylinder 502. Each second slide rail 501 has at least one second locking hole 504, and the manhole cover connecting rods 301 on both sides of the manhole cover 3 have holes along their length that mate with the second locking holes 504. When the second drive cylinder 502 drives the manhole cover 3 to slide along the second slide rail 501, opening the manhole cover 3 and creating a manhole passage, the movement stops. Then, the second locking pin is inserted into the second locking hole 504 on the side of the second slide rail 501 and the corresponding hole on the manhole cover connecting rod to prevent the manhole cover from moving under its own weight, ensuring operational safety.

[0040] In addition, to ensure that the second locking pin can be smoothly inserted into the second locking hole 504 on the side of the second slide rail 501 and the corresponding hole on the manhole cover connecting rod 301, a third limiting block can be set on one end of the second slide rail 501 near the second drive cylinder 502. The position of the third limiting block can ensure that the manhole cover 3 is fully opened, and the third limiting block is fixedly set inside the second slide rail 501 to block the manhole cover connecting rod 301 on the side of the manhole cover. Then, according to the position of the third limiting block and the position of the second locking hole 504, a hole matching the second locking hole 504 is set on the manhole cover connecting rod 301 to ensure that after the manhole cover 3 stops moving, the second locking hole 504 on the side of the second slide rail 501 is aligned with the hole on the manhole cover connecting rod 301, so that the second locking pin can be smoothly inserted.

[0041] To ensure that the manhole cover 3 can be smoothly aligned with the manhole cover flange 2 when closed, this embodiment also provides a second limiting block 505 at one end of the second slide rail 501 near the manhole cylinder section 1 to limit the position of the manhole cover 3 when closed. The second limiting block 505 is fixedly installed inside the second slide rail 501 to block the manhole cover connecting rod 301 on the side of the manhole cover 3.

[0042] In this embodiment, the aforementioned manhole device is installed on a vertical container and located on one side of the container. The second sliding component 5 in the manhole device is arranged in a direction parallel to the axial direction of the vertical container, i.e., in a vertical direction. When the manhole device is opened, the connecting bolts between the manhole cover 3 and the manhole flange 2 are first removed. Then, the first drive cylinder 402 pushes the second sliding component 5 and the manhole cover 3 forward as a whole, causing the manhole cover 3 to disengage from the manhole flange 2. When the first limit block 404 is reached, the movement stops, and the second sliding component 5 is fixed by the first locking pin to prevent the first drive cylinder 402 from being accidentally touched during subsequent operations, causing the manhole cover 3 to move forward or backward and damaging the sealing surface of the manhole cover 3. Then, the second drive cylinder 502 controls the manhole cover 3 to move upward along the second slide rail 501 until the manhole passage appears and the movement stops. The manhole cover 3 is fixed by the second locking pin to prevent it from moving downward under its own weight, thus ensuring work safety. After the manhole cover 3 is opened, maintenance personnel carry out maintenance. After the maintenance is completed, the second locking pin is removed, and the second drive cylinder 502 drives the manhole cover 3 to move downward to the position of the second limit block 505. At this time, the manhole cover 3 descends to be flush with the manhole flange 2. Then the first locking pin is removed, and the first drive cylinder 402 drives the second sliding assembly 5 and the manhole cover 3 to move towards the manhole flange 2, so that the manhole cover 3 fits against the manhole flange 2. Then the manhole cover 3 is fixed to the manhole flange 2 with bolts.

[0043] Example 2

[0044] This embodiment provides a manhole device that is easy to open. The difference between this embodiment and Embodiment 1 is that the manhole device is installed on a vertical container and located on one side of the vertical container. The second sliding component 5 in the manhole device is arranged in a direction perpendicular to the axial direction of the vertical container, that is, in a horizontal direction. However, this arrangement requires the vertical container to have a large cylinder diameter in order to facilitate the installation of the first sliding component 4 and the second sliding component 5.

[0045] When the aforementioned manhole device is opened, the connecting bolts between the manhole cover 3 and the manhole flange 2 are first removed. Then, the first drive cylinder 402 pushes the second sliding assembly 5 and the manhole cover 3 forward as a whole, causing the manhole cover 3 to disengage from the manhole flange 2. When the first limit block 404 is reached, the movement stops, and the second sliding assembly 5 is fixed by the first locking pin to prevent the first drive cylinder 402 from being accidentally touched during subsequent operations, causing the manhole cover 3 to move forward or backward and damaging the sealing surface of the manhole cover 3. Then, the second drive cylinder 502 controls the manhole cover 3 to move to the left along the second slide rail 501 until it exits the manhole. When the manhole passage is open, the movement is stopped and the manhole cover 3 is fixed by the second locking pin to ensure work safety. After the manhole cover 3 is opened, the maintenance personnel carry out maintenance. After the maintenance is completed, the second locking pin is removed, and the second drive cylinder 502 drives the manhole cover 3 to move to the right to the position of the second limit block 505. At this time, the manhole cover 3 moves to be flush with the manhole flange 2. Then the first locking pin is removed, and the first drive cylinder 402 drives the second sliding assembly 5 and the manhole cover 3 to move towards the manhole flange 2, so that the manhole cover 3 fits with the manhole flange 2. Then the manhole cover 3 is fixed to the manhole flange 2 with bolts.

[0046] It should be noted that any parts not mentioned in this utility model can be achieved by adopting or referencing existing technologies.

[0047] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A manhole device that is easy to open, comprising a manhole section (1), a manhole flange (2), and a manhole cover (3), wherein one end of the manhole section (1) is fixed to the surface of a container, the manhole flange (2) is fixed to the other end of the manhole section (1), and the manhole cover (3) is detachably connected to the manhole flange (2); characterized in that, Also includes: A first sliding assembly (4) for sliding the manhole cover (3) along its axial direction and a second sliding assembly (5) for sliding the manhole cover (3) in a direction perpendicular to its axial direction; the first sliding assembly (4) is arranged parallel to the axial direction of the manhole cover (3) and fixedly disposed on the container surface, the second sliding assembly (5) is arranged perpendicular to the axial direction of the manhole cover (3) and slidably connected to the end of the first sliding assembly (4) away from the container surface, and the manhole cover (3) is slidably connected to the second sliding assembly (5).

2. The easy-to-open manhole device according to claim 1, characterized in that, The first sliding assembly (4) is provided in at least two sets and symmetrically distributed on both sides of the manhole cover (3); each set of the first sliding assembly (4) includes a first slide rail (401) and a first drive cylinder (402). The first slide rail (401) is fixed on the surface of the container, and the cylinder body of the first drive cylinder (402) is fixed at one end of the first slide rail (401) near the surface of the container. The piston rod of the first drive cylinder (402) is connected to the second sliding assembly (5).

3. The easy-to-open manhole device according to claim 2, characterized in that, The side of the first slide rail (401) is provided with a first locking hole (403) for locking the second sliding component (5) and a first locking pin that cooperates therewith. The first locking hole (403) is located on the first slide rail (401) at one end away from the container surface, and the position where the second sliding component (5) is slidably connected to the first slide rail (401) is provided with a hole that cooperates with the first locking hole (403).

4. The easy-to-open manhole device according to claim 3, characterized in that, A first limiting block (404) for limiting the second sliding component (5) is vertically fixed on the first slide rail (401). The first limiting block (404) is located on the side of the first locking hole (403) away from the container surface.

5. A manhole device for easy opening according to claim 2, characterized in that, The second sliding assembly (5) includes a second slide rail (501) and a second drive cylinder (502). Two second slide rails (501) are provided and symmetrically distributed on both sides of the manhole cover (3). The two sides of the manhole cover (3) are slidably connected to the two second slide rails (501). The two second slide rails (501) are slidably connected to the first slide rail (401) on the same side. The second drive cylinder (502) is located between the two second slide rails (501), and the piston rod of the second drive cylinder (502) is connected to the manhole cover (3).

6. A manhole device for easy opening according to claim 5, characterized in that, A fixing rod (503) is provided between the two second slide rails (501), and the cylinder body of the second drive cylinder (502) is fixedly installed in the middle of the fixing rod (503).

7. A manhole device for easy opening according to claim 5, characterized in that, Manhole cover (3) is fixedly provided with manhole cover connecting rods (301) parallel to the second slide rail (501) on both sides. The manhole cover connecting rods (301) on both sides of the manhole cover (3) are slidably connected to the second slide rail (501) on the same side.

8. A manhole device for easy opening according to claim 7, characterized in that, A connecting rod (302) for connecting the manhole cover (3) and the manhole cover (3) is provided between the manhole cover connecting rod (301) on both sides of the manhole cover (3).

9. A manhole device for easy opening according to claim 5, characterized in that, The second slide rail (501) is provided with a second locking hole (504) for locking the manhole cover (3) and a corresponding second locking pin on its side. The second locking hole (504) is provided on one end of the second slide rail (501) near the second drive cylinder (502). Each second slide rail (501) is provided with at least one second locking hole (504). The manhole cover connecting rod (301) on both sides of the manhole cover (3) is provided with holes along its length that cooperate with the second locking hole (504).

10. A manhole device for easy opening according to claim 5, characterized in that, The second slide rail (501) is provided with a second limiting block (505) at one end near the manhole section (1) for limiting the position of the manhole cover (3) when it is closed. The second limiting block (505) is fixedly installed inside the second slide rail (501).

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