Tank manhole cover flip device

Abstract

The utility model discloses a storage tank manhole cover flipping device, which relates to the field of storage tanks, and includes: a flip frame, one end of which is a hinged end, and the other end is a connecting end, and the flip frame is hinged with one side of the tank body at the hinged end position; a connecting rod, which is arranged in the middle of the flip frame; a manhole cover, which is arranged on the flip frame and connected with one end of the connecting rod, and the flip frame can drive the manhole cover to flip so that the manhole cover can be switched between a buckled state and an open state, when the manhole cover is in the buckled state, the manhole cover is horizontally arranged and blocks the opening of the tank body, and when the manhole cover is in the open state, the manhole cover is vertically arranged or tilted and opens the opening of the tank body; a connecting piece, which is arranged on the other side of the tank body, and when the manhole cover is in the buckled state, the connecting piece can be connected with the connecting end of the flip frame. The utility model can facilitate the flipping and disassembly of the manhole cover.

Description

Technical Field

[0001] The utility model relates to the field of storage tanks, in particular to a turning device for a manhole cover of a storage tank. Background Art

[0002] Storage tanks are used to store refined chemical substances such as acids, alkalis, alcohols, gases, and liquids. The manhole on the tank wall is usually opened in the center of the side of the tank wall to facilitate the entry and exit of maintenance personnel, but for vertical tanks, the manhole can be opened at the top and can be equipped with a ladder.

[0003] In order to ensure the flipping function, the existing manhole cover structure of the storage tank needs to be hinged with the tank body at one end, so the manhole cover is not easy to disassemble from the tank body. Therefore, the existing manhole cover of the storage tank is not easy to clean, and the dirt after long-term use is not easy to remove. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a tank manhole cover turning device, which can facilitate the turning and disassembly of the manhole cover.

[0005] According to the embodiment of the utility model, the flipping device of the manhole cover of the storage tank includes: a flip frame, one end of which is a hinged end, and the other end is a connecting end, the flip frame is hinged to one side of the tank body at the hinged end position; a connecting rod is passed through the middle part of the flip frame; a manhole cover is arranged on the flip frame and connected to one end of the connecting rod, the flip frame can drive the manhole cover to flip so that the manhole cover can switch between a buckled state and an open state, when the manhole cover is in the buckled state, the manhole cover is horizontally arranged and blocks the opening of the tank body, when the manhole cover is in the open state, the manhole cover is vertically arranged or tilted and opens the opening of the tank body; a connecting piece is arranged on the other side of the tank body, when the manhole cover is in the buckled state, the connecting piece can be connected to the connecting end of the flip frame.

[0006] At least the following beneficial effects are provided: when in use, the chemical products to be stored or transported can be placed in the tank body, and then the flip frame can be flipped over to flip the manhole cover to a snap-fit ​​state, and the connecting piece can be connected to the connecting end of the flip frame to achieve sealing of the tank body; when the chemical products are to be taken out, it is only necessary to disconnect the connecting piece from the flip frame, and then the manhole cover can be flipped to an open state after flipping the flip frame. Among them, since the manhole cover is not directly hinged to the tank body, but is indirectly arranged on the flip frame through a connecting rod, when the manhole cover needs to be removed, it is only necessary to remove the manhole cover from the connecting rod, which is convenient for operation. In summary, the utility model can facilitate the flipping and disassembly of the manhole cover.

[0007] According to some embodiments of the present invention, a hand wheel is further included. The hand wheel is arranged at an end of the connecting rod away from the manhole cover and is detachably connected to the connecting rod.

[0008] According to some embodiments of the utility model, the connecting rod is provided with threads, a connecting tube is provided in the middle of the flip frame, the connecting tube is embedded in the interior of the flip frame and is penetrated by a threaded hole, and the middle part of the connecting rod is threadedly connected to the connecting tube.

[0009] According to some embodiments of the utility model, a connecting column is provided in the middle part of the outer surface of the manhole cover, and a matching hole is provided on the connecting column along the axial direction of the manhole cover, and the bottom of the connecting rod can be extended into the matching hole. A pin hole is also provided on the connecting column, and the pin hole is perpendicular to the matching hole and eccentrically arranged relative to the center line of the matching hole, and the pin hole can allow a pin shaft to pass through. An arc groove is provided at the bottom of the connecting rod corresponding to the position of the pin hole, and the arc groove extends along the circumference of the connecting rod. The pin hole and the arc groove enclose a through hole, and when the pin shaft passes through the pin hole, the middle part of the pin shaft is located in the through hole.

[0010] According to some embodiments of the utility model, a plurality of reinforcing ribs are provided on the upper surface of the manhole cover, the plurality of reinforcing ribs are evenly distributed along the circumference of the manhole cover, and one end of the reinforcing ribs is connected to the connecting column.

[0011] According to some embodiments of the utility model, an avoidance groove is provided at the connecting end of the flip frame, and the connecting piece includes a screw and a nut, the bottom end of the screw is hinged to one side of the tank body, and the top of the screw is provided with a thread, the nut is sleeved on the top of the screw and cooperates with the screw thread, the screw has a locking position and an avoidance position, when the screw is in the avoidance position, the screw is located below the flip frame, when the screw is in the locking position, the screw flips into the avoidance groove, the nut is tightened on the screw and presses against the upper surface of the connecting end of the flip frame.

[0012] According to some embodiments of the utility model, the nut is provided with a handle along its axial direction, and the top of the handle is higher than the top of the screw rod.

[0013] According to some embodiments of the present invention, the handle is in an inverted U shape, and the bottom end of the handle is welded to the outer surface of the nut.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 This is a structural schematic diagram of a manhole cover in an embodiment of the utility model when it is in a buckled state;

[0017] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0018] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0019] Figure 4 It is a structural schematic diagram of a connecting rod in an embodiment of the utility model.

[0020] Figure Number:

[0021] Tank 100;

[0022] Manhole cover 200, connecting column 210, matching hole 211, pin hole 212, reinforcing rib 220;

[0023] The turning frame 300, the hinged end 310, the connecting end 320, and the avoidance groove 330;

[0024] Connecting rod 400, arc groove 410;

[0025] Connecting member 500, screw rod 510, nut 520, handle 521;

[0026] Handwheel 600;

[0027] Connecting tube 700;

[0028] Pin 800. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Reference Figures 1 to 4 The utility model discloses a turning device for a manhole cover 200 of a storage tank, comprising a turning frame 300, a connecting rod 400, the manhole cover 200 and a connecting piece 500.

[0033] Among them, one end of the flip frame 300 is a hinged end 310, and the other end is a connecting end 320. The flip frame 300 is hinged to one side of the tank body 100 at the hinged end 310. The connecting rod 400 is passed through the middle of the flip frame 300. The manhole cover 200 is arranged on the flip frame 300 and is connected to one end of the connecting rod 400. The flip frame 300 can drive the manhole cover 200 to flip so that the manhole cover 200 can switch between a buckled state and an open state. When the manhole cover 200 is in the buckled state, the manhole cover 200 is horizontally arranged and blocks the opening of the tank body 100. When the manhole cover 200 is in the open state, the manhole cover 200 is vertically arranged or tilted and opens the opening of the tank body 100. The connecting piece 500 is arranged on the other side of the tank body 100. When the manhole cover 200 is in the buckled state, the connecting piece 500 can be connected to the connecting end 320 of the flip frame 300.

[0034] It is understandable that, when in use, the chemical products to be stored or transported can be placed in the tank body 100, and then the flip frame 300 can be flipped to flip the manhole cover 200 to a snap-fit ​​state, and the connecting piece 500 can be connected to the connecting end 320 of the flip frame 300 to achieve sealing of the tank body 100; when the chemical products are to be taken, it is only necessary to disconnect the connection between the connecting piece 500 and the flip frame 300, and then the manhole cover 200 can be flipped to an open state after flipping the flip frame 300. Among them, since the manhole cover 200 is not directly hinged to the tank body 100, but is indirectly arranged on the flip frame 300 through the connecting rod 400, when it is necessary to disassemble the manhole cover 200, it is only necessary to remove the manhole cover 200 from the connecting rod 400, which is convenient for operation. In summary, the utility model can facilitate the flipping and disassembly of the manhole cover.

[0035] like Figure 1 and Figure 2 As shown, the embodiment of the utility model also includes a handwheel 600, which is arranged at one end of the connecting rod 400 away from the manhole cover 200 and is detachably connected to the connecting rod 400. The handwheel 600 can facilitate the disassembly of the manhole cover 200. The bottom end of the connecting rod 400 can be withdrawn outside the manhole cover 200 by simply turning the handwheel 600.

[0036] In the embodiment of the present utility model, refer to Figure 3The connecting rod 400 is provided with a thread, and a connecting tube 700 is provided in the middle of the flip frame 300. The connecting tube 700 is embedded in the interior of the flip frame 300 and is penetrated with a threaded hole. The middle part of the connecting rod 400 is threadedly connected with the connecting tube 700. The connecting tube 700 can support and cooperate with the middle part of the connecting rod 400. By rotating the interface of the connecting rod 400, the bottom end of the connecting rod 400 can be easily inserted into and withdrawn from the manhole cover 200.

[0037] In the embodiment of the present utility model, refer to Figure 3 A connecting column 210 is provided in the middle of the outer surface of the manhole cover 200. The connecting column 210 is provided with a matching hole 211 along the axial direction of the manhole cover 200. The bottom of the connecting rod 400 can extend into the matching hole 211. A pin hole 212 is also provided on the connecting column 210. The pin hole 212 is perpendicular to the matching hole 211 and is eccentrically arranged relative to the center line of the matching hole 211. The pin hole 212 can allow the pin shaft 800 to pass through. An arc groove 410 is provided at the bottom of the connecting rod 400 corresponding to the position of the pin hole 212. The arc groove 410 extends along the circumference of the connecting rod 400. The pin hole 212 and the arc groove 410 enclose a through hole. When the pin shaft 800 passes through the pin hole 212, the middle part of the pin shaft 800 is located in the through hole. During installation, the bottom of the connecting rod 400 can be first inserted into the matching hole 211 so that the arc groove 410 is aligned with the pin hole 212, and then the pin shaft 800 is inserted into the pin hole 212. The pin shaft 800 can limit the position of the connecting rod 400 and prevent the connecting rod 400 from moving up and down, thereby achieving a stable connection between the connecting rod 400 and the manhole cover 200 and facilitating disassembly and assembly.

[0038] like Figure 1 and Figure 2 As shown, the upper surface of the manhole cover 200 in the embodiment of the utility model may be provided with a plurality of reinforcing ribs 220, and the plurality of reinforcing ribs 220 are evenly distributed and divergent along the circumference of the manhole cover 200, and one end of the reinforcing rib 220 is connected to the connecting column 210. The reinforcing rib 220 can increase the local thickness of the manhole cover 200 and enhance the strength of the manhole cover 200. In addition, the reinforcing rib 220 can also stabilize the structure of the connecting column 210.

[0039] Reference Figure 2In an embodiment of the utility model, the connecting end 320 of the flip frame 300 is provided with an avoidance groove 330, and the connecting member 500 includes a screw rod 510 and a nut 520. The bottom end of the screw rod 510 is hinged to one side of the tank body 100, and the top of the screw rod 510 is provided with a thread. The nut 520 is sleeved on the top of the screw rod 510 and cooperates with the thread of the screw rod 510. The screw rod 510 has a locking position and an avoidance position. When the screw rod 510 is in the avoidance position, the screw rod 510 is located below the flip frame 300. When the screw rod 510 is in the locking position, the screw rod 510 flips into the avoidance groove 330, and the nut 520 is tightened on the screw rod 510 and presses against the upper surface of the connecting end 320 of the flip frame 300. When the manhole cover 200 is in the buckled position, the screw rod 510 can be flipped upward so that the nut 520 is located above the connecting end 320 of the flip frame 300, and then the nut 520 can be tightened downward to make the manhole cover 200 and the tank body 100 tightly buckled.

[0040] Reference Figure 1 The nut 520 in the embodiment of the utility model is provided with a handle 521 along its own axis, and the top of the handle 521 is higher than the top of the screw 510. When the nut 520 is rotated, the nut 520 can be indirectly driven to rotate by rotating the handle 521, thereby increasing the convenience and comfort when rotating the nut 520.

[0041] Reference Figure 1 The handle 521 in the embodiment of the utility model is in an inverted U shape, and the bottom end of the handle 521 is welded to the outer surface of the nut 520. The inverted U-shaped handle 521 is more convenient for operators to hold.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. The tank manhole cover flip device is characterized by: include: A turning frame, one end of which is a hinged end and the other end of which is a connecting end, wherein the turning frame is hingedly connected to one side of the tank body at the hinged end; A connecting rod is arranged through the middle part of the turning frame; A manhole cover is arranged on the flip frame and connected to one end of the connecting rod, the flip frame can drive the manhole cover to flip so that the manhole cover can be switched between a buckled state and an open state. When the manhole cover is in the buckled state, the manhole cover is horizontally arranged and blocks the opening of the tank body. When the manhole cover is in the open state, the manhole cover is vertically arranged or tilted and opens the opening of the tank body. A connecting piece is arranged on the other side of the tank body, and when the manhole cover is in the buckled state, the connecting piece can be connected to the connecting end of the flip frame.

2. The tank manhole cover turning device according to claim 1, characterized in that: It also includes a hand wheel, which is arranged at one end of the connecting rod away from the manhole cover and is detachably connected to the connecting rod.

3. The tank manhole cover turning device according to claim 1, characterized in that: The connecting rod is provided with threads, and a connecting tube is provided in the middle of the flip frame. The connecting tube is embedded in the interior of the flip frame and is penetrated with threaded holes, and the middle of the connecting rod is threadedly connected with the connecting tube.

4. The tank manhole cover turning device according to claim 1, characterized in that: A connecting column is provided in the middle of the outer surface of the manhole cover, and a matching hole is provided on the connecting column along the axial direction of the manhole cover. The bottom of the connecting rod can be extended into the matching hole. A pin hole is also provided on the connecting column. The pin hole is perpendicular to the matching hole and eccentrically arranged relative to the center line of the matching hole. The pin hole can allow a pin shaft to pass through. An arc groove is provided at the bottom of the connecting rod corresponding to the position of the pin hole. The arc groove extends along the circumference of the connecting rod. The pin hole and the arc groove enclose a through hole. When the pin shaft passes through the pin hole, the middle part of the pin shaft is located in the through hole.

5. The tank manhole cover turning device according to claim 4, characterized in that: A plurality of reinforcing ribs are arranged on the upper surface of the manhole cover, and the plurality of reinforcing ribs are evenly distributed along the circumference of the manhole cover, and one end of the reinforcing ribs is connected to the connecting column.

6. The tank manhole cover turning device according to any one of claims 1 to 5, characterized in that: The connecting end of the flip frame is provided with an avoidance groove, and the connecting piece includes a screw and a nut. The bottom end of the screw is hinged to one side of the tank body, and the top of the screw is provided with a thread. The nut is sleeved on the top of the screw and cooperates with the screw thread. The screw has a locking position and an avoidance position. When the screw is in the avoidance position, the screw is located below the flip frame. When the screw is in the locking position, the screw is flipped into the avoidance groove, and the nut is tightened on the screw and presses against the upper surface of the connecting end of the flip frame.

7. The tank manhole cover turning device according to claim 6, characterized in that: The nut is provided with a handle along its axial direction, and the top of the handle is higher than the top of the screw rod.

8. The tank manhole cover turning device according to claim 7, characterized in that: The handle is in an inverted U shape, and the bottom end of the handle is welded to the outer surface of the nut.

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