Tank top manhole anti-falling device with quick disassembly and assembly structure

Abstract

The utility model discloses a tank top manhole anti-falling device with a quick disassembly and assembly structure, which belongs to the field of anti-falling devices, and comprises a tank body, an arranged anti-falling mechanism, handles positioned on the top surfaces of positioning plates on two sides of a connecting ring are manually dragged in opposite directions, and the handles drive the connecting plate to move in a fixed opening along a guide rod through a guide hole, so that the anti-falling device can be quickly disassembled and assembled. And the compression spring is forced to do retraction operation until the clamping plate on the outer side wall enters the fixing opening through the through opening, the pulling force on the handle is kept, the connecting ring is lifted through the handle, then the connecting ring is positioned and installed in the step groove through the cooperation of the positioning plate and the upper positioning opening, the pulling force on the handle is released, and the handle is pulled out. The connecting ring is arranged in the manhole body, the connecting plate is pushed under the elastic reset acting force of the compression spring to enable the clamping plate to enter the clamping groove, and therefore the connecting ring can be installed in the hole opening of the manhole body, the manhole body can be intercepted and blocked through cooperation with the anti-falling grid bars installed in the connecting ring, and therefore the anti-falling protection effect on workers can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of anti-falling devices, in particular to a tank top manhole anti-falling device with a quick disassembly and assembly structure. Background Art

[0002] Steel storage tanks are sealed steel containers used to store liquids or gases. Steel storage tank projects are essential and important infrastructure for industries such as petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, and national defense. Our economic life is inseparable from large and small steel storage tanks. The important role that steel storage tanks play in the development of the national economy is irreplaceable. With the continuous development of the current storage tank industry, more and more industries and enterprises are using storage tanks, and more and more enterprises are entering the storage tank industry. Steel storage tanks are special equipment for storing various liquid (or gas) raw materials and finished products.

[0003] In the prior art, a Chinese utility model patent with the publication number “CN203877238U” and the patent name “A Stainless Steel Plastic-Lined Storage Tank” discloses a storage tank with a manhole on the top. The patent records the following technical solutions: “the tank body is a vertical cylindrical body, the top of the tank body is provided with a cone top, the cone top is provided with a manhole, a feed port and a lifting lug, the upper end side of the tank body is provided with a spare port and a liquid level port, the middle side of the tank body is provided with a liquid level port, and the lower end side of the tank body is provided with a manhole, a liquid level port and a discharge port; the tank wall of the tank body is composed of a plastic lining layer, a steel plate mesh and a steel shell layer, the inner surface of the steel shell layer is attached with a plastic lining layer covering the steel plate mesh, the plastic lining layer is a PE plastic layer, the steel shell layer is a 304 stainless steel shell layer, the cross section of the steel plate mesh is wavy, and the steel plate mesh is welded to the inner surface of the steel shell layer through the trough of the wave shape, and welding points are formed between the steel plate mesh and the inner surface of the steel shell layer”;

[0004] However, in actual use, this technical solution lacks anti-fall protection measures for the top manhole. When opening the manhole cover or after the manhole cover is opened, if the worker loses balance due to improper operation or negligence during the operation, he or she may fall from the manhole into the tank body, posing a serious safety hazard.

[0005] Therefore, in order to solve the above technical problems, the utility model proposes a tank top manhole anti-falling device with a quick disassembly and assembly structure. Utility Model Content

[0006] The main purpose of the utility model is to provide a tank top manhole anti-falling device with a quick disassembly and assembly structure, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The cam is secured to the top of the tank and is secured to a location where the cam is secured. The cam is secured to a location where the cam is secured to a location where the cam is secured. The cam is secured to the top of the tank and is secured to a location where the cam is secured.

[0009] Preferably, a fixing ring is fixedly mounted on the inner wall of the opening of the manhole body, and an annular step groove is provided on the top surface of the fixing ring, and a group of symmetrical positioning openings are provided on the inner wall of the step groove.

[0010] Preferably, a card slot is further provided on the inner wall of the positioning opening.

[0011] Preferably, a group of symmetrical positioning plates corresponding to the positioning openings are fixedly mounted on the outer wall of the connecting ring, and a fixing opening is provided on the top surface of the positioning plate, and a through opening communicating with the fixing opening is provided on the outer side wall of the positioning plate.

[0012] Preferably, a group of symmetrical guide rods are fixedly installed inside the fixed mouth, and a compression spring is mounted on the rod body of the guide rod, the inner end of the compression spring is fixedly installed on the inner wall of the fixed mouth, a group of symmetrical guide holes are opened on the side wall of the connecting plate, and the connecting plate is movably installed with the guide rods through the guide holes, the connecting plate is also fixedly installed with the outer end of the compression spring, and the card plate is fixedly installed on the outer wall of the connecting plate and inserted into the card slot through the through opening, and a handle is also fixedly installed on the top surface of the connecting plate.

[0013] Preferably, a plurality of anti-fall bars are fixedly installed inside the connecting ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The anti-fall mechanism provided in the present invention manually pulls the handles on the top surfaces of the positioning plates on both sides of the connecting ring in opposite directions, and the handles will drive the connecting plate to move in the fixing opening along the guide rod through the guide hole, and force the compression spring to retract until the clamping plate on the outer wall enters the fixing opening through the through opening. The pulling force on the handle is maintained and the connecting ring is lifted by the handle. After the connecting ring is positioned and installed in the step groove through the positioning plate and the positioning opening, the pulling force on the handle is released, and the connecting plate is pushed into the clamping groove under the elastic restoring force of the compression spring. In this way, Installing the connecting ring in the hole of the manhole body and cooperating with the anti-fall grid installed in the connecting ring can intercept and block the manhole body, thereby playing a role of anti-fall protection for the workers, preventing the workers from losing their balance and falling into the tank body from the manhole body due to improper operation or negligence during operation, greatly improving the safety of the workers during operation. At the same time, when subsequent workers need to enter the tank body through the manhole body to operate, it is also convenient to quickly remove the connecting ring from the manhole body, thereby facilitating the rapid disassembly and use of the anti-fall mechanism in the manhole body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 A magnified schematic diagram of the structure at A;

[0018] Figure 3 This is a schematic diagram of the overall structure of the fixing ring of the present utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the anti-fall mechanism of the utility model;

[0020] Figure 5 For the utility model Figure 4 A magnified schematic diagram of the structure at point B.

[0021] In the figure: 1. Tank body; 2. Ladder; 3. Manhole body; 4. Cover; 5. Anti-fall mechanism; 6. Fixing ring; 7. Step groove; 8. Positioning port; 9. Clamping slot; 10. Connecting ring; 11. Anti-fall fence; 12. Positioning plate; 13. Fixing port; 14. Through port; 15. Guide rod; 16. Compression spring; 17. Connecting plate; 18. Guide hole; 19. Clamping plate; 20. Handle. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 - Figure 5 As shown, a tank top manhole anti-falling device with a quick disassembly structure includes a tank body 1, a ladder 2 is fixedly connected to the outer wall of the tank body 1, and a manhole body 3 is fixedly connected to the top surface of the tank body 1, a cover body 4 is provided on the top surface of the manhole body 3, and an anti-falling mechanism 5 is provided inside the manhole body 3, and the anti-falling mechanism 5 includes a fixing ring 6, a connecting ring 10, an anti-falling grid 11, a positioning plate 12, a guide rod 15, a compression spring 16, a connecting plate 17 and a clamping plate 19, and the fixing ring 6 is fixedly connected to the manhole body 3, and the connecting ring 10 is fixedly connected to the top surface of the fixing ring 6 through the positioning plates 12 on both sides. Several anti-fall bars 11 are fixedly connected to the interior of the connecting ring 10, and a symmetrical guide rod 15 is fixedly connected to the top surface of the positioning plate 12. The compression spring 16 is sleeved on the outside of the guide rod 15. The connecting plate 17 is movably connected to the guide rod 15 through the guide hole 18 on the side wall and fixedly connected to the outer end of the compression spring 16, and a card plate 19 is also fixedly connected to the outer side wall of the connecting plate 17.

[0024] like Figure 3 As shown, a fixing ring 6 is fixedly installed on the inner wall of the manhole body 3, and an annular step groove 7 is opened on the top surface of the fixing ring 6. A set of symmetrical positioning holes 8 are opened on the inner wall of the step groove 7. The positioning holes 8 opened in the fixing ring 6 can cooperate with the positioning plate 12 to position the connecting ring 10 in the step groove 7;

[0025] like Figure 3 As shown, a card slot 9 is further provided on the inner wall of the positioning opening 8. The card slot 9 provided on the inner wall of the positioning opening 8 is used to cooperate with the card plate 19 and to limit the position thereof.

[0026] like Figure 5 As shown, a group of symmetrical positioning plates 12 corresponding to the positioning openings 8 are fixedly mounted on the outer wall of the connecting ring 10, and a fixing opening 13 is opened on the top surface of the positioning plate 12. A through opening 14 communicating with the fixing opening 13 is opened on the outer side wall of the positioning plate 12. The connecting ring 10 can be positioned and installed in the fixing ring 6 through the positioning plate 12, and the fixing opening 13 opened on the top surface of the positioning plate 12 is used to cooperate with the movable use of the connecting plate 17, and the through opening 14 opened allows the clamping plate 19 to pass through the through opening 14 and enter and exit the through opening 14;

[0027] like Figure 5As shown, a group of symmetrical guide rods 15 are fixedly installed inside the fixing port 13, and a compression spring 16 is set on the rod body of the guide rod 15, and the inner end of the compression spring 16 is fixedly installed on the inner wall of the fixing port 13, and a group of symmetrical guide holes 18 are opened on the side wall of the connecting plate 17, and the connecting plate 17 is movably installed with the guide rod 15 through the guide hole 18, and the connecting plate 17 is also fixedly installed with the outer end of the compression spring 16, and the card plate 19 is fixedly installed on the outer wall of the connecting plate 17 and inserted into the card slot 9 through the through port 14. The top surface of the connecting plate 17 is also fixedly installed with a handle 20. When installing the anti-fall mechanism 5, the handles 20 on the top surface of the positioning plate 12 installed on both sides of the outer wall of the connecting ring 10 are manually pulled in relative directions. The handles 20 will drive the connecting plate 17 to make the connecting plate 17 pass through the opening on the side wall. The guide hole 18 moves inward along the guide rod 15 in the fixing opening 13, and forces the compression spring 16 set on the guide rod 15 to retract, until the clamping plate 19 on the outer wall of the connecting plate 17 enters the fixing opening 13 through the through opening 14, and the pulling force on the handle 20 is kept unchanged. After the connecting ring 10 is lifted by the handle 20, the positioning plate 12 is aligned with the positioning opening 8, and the connecting ring 10 is placed in the step groove 7, and the pulling force on the positioning plate 12 is released, allowing the compression spring 16 to elastically stretch, and by pushing the connecting plate 17 outward, the clamping plate 19 is inserted into the clamping groove 9 through the through opening 14, thereby achieving the purpose of facilitating the rapid installation of the anti-fall mechanism 5, and when the staff needs to enter the tank body 1 through the manhole body 3 later, the connecting ring 10 can be quickly removed from the manhole body 3;

[0028] like Figure 2 and Figure 4 As shown, a plurality of anti-fall bars 11 are fixedly installed inside the connecting ring 10. By installing the anti-fall bars 11 inside the connecting ring 10, when a person falls into the manhole body 3, the anti-fall bars 11 can intercept and block the person and prevent the person from falling into the tank body 1, thereby improving safety during operation.

[0029] When the worker climbs onto the tank body 1 through the ladder 2 to work, if the worker opens the cover 4 at the front end of the cover 4 improperly, the worker will be unstable due to excessive force when opening the cover, which will cause the worker to fall into the tank body 1 through the manhole body 3. Moreover, when the worker opens the cover 4 and observes the material situation in the tank body 1 through the manhole body 3, he forgets to close the cover 4 when filling the tank body 1. When the worker loses his balance, he falls into the tank body 1 through the manhole body 3 due to negligence. By pre-installing and fixing the anti-fall mechanism 5 in the orifice of the manhole body 3, when the worker falls into the manhole body 3 due to improper operation or negligence, he will fall into the interception platform formed by the several anti-fall bars 11 installed in the connecting ring 10, and the anti-fall bars 11 in the connecting ring 10 intercept and block the worker, which can effectively prevent the worker from falling into the tank body 1 again and causing safety hazards.

[0030] When the worker needs to enter the tank body 1 through the manhole body 3 to perform operations, after the worker has taken relevant protective measures, he manually pulls the handle 20 in the opposite direction, and the handle 20 will drive the connecting plate 17 to make the connecting plate 17 pass through the guide hole 18 opened on the side wall along the symmetrical guide rod 15 installed in the fixing port 13 to move inward in the fixing port 13, and force the compression spring 16 set on the guide rod 15 to retract, and the connecting plate 17 will drive the clamping plate 19 on the outer wall to move inward synchronously, and the clamping plate 19 gradually moves out of the clamping groove 9, until the clamping plate 19 enters the fixing port 13 through the through port 14, so that the handle 20 can no longer be pulled inward, and the pulling force on the handle 20 is maintained unchanged, and the connecting ring 10 is lifted by the handle 20 to move the positioning plate 12 out of the positioning port 8, and after the connecting ring 10 is moved out of the step groove 7, it is taken out from the manhole body 3, and the connection of the connecting ring is completed. After the work is completed, the handle 20 is manually pulled in the relative direction until it can no longer be pulled, and the pulling force is maintained unchanged and the connecting ring 10 is lifted by the handle 20, so that the positioning plate 12 is aligned with the positioning port 8 and the connecting ring 10 is installed in the step groove 7, the pulling force on the positioning plate 12 is released, and the compression spring 16 is elastically stretched. By pushing the connecting plate 17 outward, the card plate 19 is inserted into the card slot 9 through the through port 14, and the connecting ring 10 can be reinstalled in the manhole body 3. The several anti-fall bars 11 installed inside can play a role in preventing the staff from falling, preventing the staff from losing balance and falling into the tank body 1 from the manhole body 3 due to improper operation or negligence during operation, which greatly improves the safety of the staff during operation and facilitates the quick disassembly and assembly of the anti-fall mechanism 5 in the manhole body 3.

[0031] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, various improvements may be made to the present invention and its components may be replaced with equivalents, or some of its technical features may be replaced with equivalents without departing from the scope of the present invention. Anything within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A tank top manhole anti-fall device with a quick disassembly structure, comprising a tank body (1), a ladder (2) fixedly connected to the outer wall of the tank body (1), and a manhole body (3) fixedly connected to the top surface of the tank body (1), and a cover body (4) provided on the top surface of the manhole body (3), characterized in that: The manhole body (3) is provided with an anti-fall mechanism (5) inside, and the anti-fall mechanism (5) includes a fixing ring (6), a connecting ring (10), an anti-fall fence (11), a positioning plate (12), a guide rod (15), a compression spring (16), a connecting plate (17) and a clamping plate (19), wherein the fixing ring (6) is fixedly connected to the inner wall of the manhole body (3), and the connecting ring (10) is fixedly connected to the top surface of the fixing ring (6) through the positioning plates (12) on both sides, a plurality of anti-fall fences (11) are fixedly connected to the inside of the connecting ring (10), symmetrical guide rods (15) are fixedly connected to the top surface of the positioning plate (12), and the compression spring (16) is sleeved on the outside of the guide rod (15), the connecting plate (17) is movably connected to the guide rod (15) through the guide hole (18) on the side wall and fixedly connected to the outer end of the compression spring (16), and the outer wall of the connecting plate (17) is also fixedly connected to the clamping plate (19).

2. The tank top manhole anti-fall device with a quick disassembly structure according to claim 1, characterized in that: A fixing ring (6) is fixedly mounted on the inner wall of the opening of the manhole body (3), and an annular step groove (7) is provided on the top surface of the fixing ring (6), and a group of symmetrical positioning openings (8) are provided on the inner wall of the step groove (7).

3. The tank top manhole anti-falling device with a quick disassembly structure according to claim 2, characterized in that: A clamping groove (9) is also provided on the inner wall of the positioning opening (8).

4. The tank top manhole anti-falling device with a quick disassembly structure according to claim 3, characterized in that: A group of symmetrical positioning plates (12) corresponding to the positioning openings (8) are fixedly mounted on the outer wall of the connecting ring (10), and a fixing opening (13) is provided on the top surface of the positioning plate (12). A through opening (14) communicating with the fixing opening (13) is provided on the outer side wall of the positioning plate (12).

5. The tank top manhole anti-falling device with a quick disassembly structure according to claim 4, characterized in that: A group of symmetrical guide rods (15) are fixedly installed inside the fixing port (13), and a compression spring (16) is sleeved on the rod body of the guide rod (15). The inner end of the compression spring (16) is fixedly installed on the inner wall of the fixing port (13). A group of symmetrical guide holes (18) are opened on the side wall of the connecting plate (17), and the connecting plate (17) is movably installed with the guide rod (15) through the guide holes (18). The connecting plate (17) is also fixedly installed with the outer end of the compression spring (16), and the clamping plate (19) is fixedly installed on the outer wall of the connecting plate (17) and inserted into the clamping groove (9) through the through port (14). The top surface of the connecting plate (17) is also fixedly installed with a handle (20).

6. The tank top manhole anti-falling device with a quick disassembly structure according to claim 5, characterized in that: A plurality of anti-fall bars (11) are fixedly installed inside the connecting ring (10).

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