Dust cover for gauge opening at top of chemical storage tank

Abstract

The utility model relates to the technical field of storage tank protection equipment, and discloses a dust cover for a scale measuring opening at the top of a chemical storage tank, which comprises a cover body provided with a mounting component and a stop component. The mounting assembly comprises a connecting bolt which can be in threaded connection with a tank top gauge opening, an auxiliary nut which is fixedly arranged in the cover body and is in threaded connection with the connecting bolt, a square rod which is in sliding connection with the connecting bolt, a limiting block and a transmission gear which are fixedly mounted on the two end surfaces of the square rod respectively, and an annular gear which is in meshed connection with the transmission gear. According to the dust cover for the gauge opening at the top of the chemical storage tank, the mounting assembly and the cover body are integrally designed, so that the states of a plurality of connecting bolts on the cover body can be adjusted at the same time through components contained in the mounting assembly, the aim of simplifying the disassembly and assembly steps of the cover body is achieved, and the use efficiency of the whole structure is improved; and an application scene of a tank top scale measuring opening is fit.

Description

Technical Field

[0001] The utility model relates to the technical field of storage tank protection equipment, in particular to a dust cover for a gauge inspection port on a tank top of a chemical storage tank. Background Art

[0002] The purpose of the dust cover on the inspection port on the tank top is to prevent external pollutants such as dust and impurities from entering the tank, thereby protecting the purity and quality of the chemicals in the tank.

[0003] The tank top inspection port is set up to facilitate operations such as liquid level measurement, oil sampling and safety inspection. Therefore, the dust cover needs to be removed frequently. In order to ensure its stability, the traditional dust cover is connected to the tank top inspection port with bolts. Therefore, during the subsequent disassembly process, the user needs to unscrew the bolts at different positions in turn. The entire operation steps are relatively complicated and the actual use efficiency is low. For this reason, we propose a dust cover for the tank top inspection port of a chemical storage tank to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a dust cover for the gauge inspection port on the top of a chemical storage tank, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a dust cover for a gauge inspection port on a tank top of a chemical storage tank, comprising: a cover body, a mounting assembly and a stop assembly being provided on the cover body, the mounting assembly comprising a connecting bolt which can be threadedly connected to the gauge inspection port on the tank top, an auxiliary nut fixedly arranged inside the cover body and threadedly connected to the connecting bolt, a square rod slidably connected to the connecting bolt, a limit block and a transmission gear fixedly mounted on both end surfaces of the square rod respectively, a ring gear meshing with the transmission gear, a first bearing for realizing a rotational connection between the transmission gear and the cover body, and a second bearing for realizing a rotational connection between the ring gear and the cover body; the stop assembly comprising a sector-shaped friction strip fixedly connected to the cover body, a connecting seat fixedly connected to the ring gear, a pull rod slidably connected to the connecting seat, a friction block fixedly mounted on the lower end surface of the pull rod, and an auxiliary spring with both ends fixedly connected to the connecting seat and the friction block respectively.

[0006] Preferably, a handle is fixedly provided on the outer surface of the cover body, and there are two handles in total.

[0007] Preferably, an expansion plate is provided on the outer surface of the cover body, an auxiliary hole for passing the connecting bolt is opened on the bottom surface of the cover body, and a blocking column is also fixedly installed on the bottom surface of the cover body.

[0008] Preferably, the limit block is located inside the connecting bolt, and the limit block is also slidably connected to the connecting bolt.

[0009] Preferably, the first bearing includes a first inner ring and a first outer ring, the first inner ring is fixedly connected to the transmission gear, and the first outer ring is fixedly connected to the cover body.

[0010] Preferably, the second bearing includes a second inner ring and a second outer ring, the second inner ring is fixedly connected to the ring gear, the second outer ring is fixedly connected to the cover body, and the cover body is made of stainless steel.

[0011] Preferably, friction lines for enhancing friction between the sector-shaped friction strip and the friction block are provided on the side of the sector-shaped friction strip close to the friction block.

[0012] Preferably, the upper end of the pull rod is provided with a circular protrusion for facilitating upward pulling of the pull rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The dust cover for the inspection port on the top of the chemical storage tank is designed to be integrated with the installation component and the cover body. The parts contained in the installation component can be used to adjust the status of multiple connecting bolts on the cover body at the same time, thereby simplifying the disassembly and assembly steps of the cover body, thereby improving the efficiency of the overall structure and fitting the application scenario of the tank top inspection port.

[0015] 2. The dust cover of the inspection port on the top of the chemical storage tank is equipped with a stop assembly. The friction formed between the friction block and the fan-shaped friction strip in the stop assembly is used to lock the state of the components contained in the installation assembly, avoiding the phenomenon of accidental contact of the entire device. At the same time, it can also ensure the stability of the entire device and prevent the cover body from shifting and affecting its protective effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the overall structure of the utility model from another perspective;

[0018] Figure 3 It is a schematic cross-sectional view of the local structure of the utility model;

[0019] Figure 4 This is an exploded view of the first bearing and the second bearing structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the square rod and connecting bolt structure of the utility model.

[0021] In the figure: 1. cover body; 11. stop column; 12. auxiliary hole; 2. handle; 3. expansion plate; 4. mounting assembly; 41. ring gear; 42. connecting bolt; 43. auxiliary nut; 44. square rod; 45. limit block; 46. transmission gear; 47. first bearing; 48. second bearing; 5. stop assembly; 51. fan-shaped friction strip; 52. auxiliary spring; 53. friction block; 54. pull rod; 55. connecting seat. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5A dust cover for the top inspection port of a chemical storage tank comprises a cover body 1, a handle 2 is fixedly provided on the outer surface of the cover body 1, and there are two handles 2, which are convenient for the actual use of the cover body 1 and fit the actual application scenario. An expansion plate 3 is provided on the outer surface of the cover body 1, and an auxiliary hole 12 for passing the connecting bolt 42 is opened on the bottom surface of the cover body 1, and a blocking column 11 is also fixedly installed on the bottom surface of the cover body 1. The expansion plate 3 can expand the shielding range of the cover body 1, further improving the protective effect of the entire cover body 1, and can effectively prevent external rainwater or dust from penetrating into the tank top inspection port. And the blocking column 11 at the bottom of the cover body 1 can make the cover body 1, after being installed on the top gauge opening of the chemical storage tank, leave a certain gap between the cover body 1 and the top gauge opening of the chemical storage tank, so as to facilitate the pressure relief of the chemical storage tank. The cover body 1 is provided with a mounting assembly 4 and a stop assembly 5. The mounting assembly 4 includes a connecting bolt 42 that can be threadedly connected to the tank top gauge opening, an auxiliary nut 43 fixedly arranged inside the cover body 1 and threadedly connected to the connecting bolt 42, a square rod 44 slidably connected to the connecting bolt 42, and a limit block 45 and a transmission member 46 fixedly mounted on both end surfaces of the square rod 44. Gear 46, ring gear 41 meshing with transmission gear 46, first bearing 47 for realizing rotational connection between transmission gear 46 and cover body 1, and second bearing 48 for realizing rotational connection between ring gear 41 and cover body 1; limit block 45 is located inside connecting bolt 42, and limit block 45 is also slidably connected with connecting bolt 42, first bearing 47 comprises first inner ring and first outer ring, the first inner ring is fixedly connected to transmission gear 46, the first outer ring is fixedly connected to cover body 1, second bearing 48 comprises second inner ring and second outer ring, the second inner ring is fixedly connected to ring gear 46, the first outer ring is fixedly connected to cover body 1, 41 is fixedly connected, and the second outer ring is fixedly connected to the cover body 1, ensuring that the ring gear 41 and the transmission gear 46 can rotate inside the cover body 1, so as to achieve flexible transmission, and adjust the status of multiple connecting bolts 42 through multiple transmission gears 46 to simplify the overall operation steps and improve the use efficiency. The cover body 1 is made of stainless steel. The stainless steel material has the characteristics of corrosion resistance and corrosion resistance. It can be used for a long time in harsh environments such as humidity, acid and alkali corrosion without damage. This characteristic enables the stainless steel cover body 1 to maintain its protective performance in various environments and extend its service life.

[0024] The stop assembly 5 includes a sector-shaped friction strip 51 fixedly connected to the cover body 1, a connecting seat 55 fixedly connected to the ring gear 41, a pull rod 54 slidably connected to the connecting seat 55, a friction block 53 fixedly mounted on the lower end surface of the pull rod 54, and an auxiliary spring 52 whose two ends are respectively fixedly connected to the connecting seat 55 and the friction block 53. The side of the sector-shaped friction strip 51 close to the friction block 53 is provided with friction grooves for enhancing the friction force between the sector-shaped friction strip 51 and the friction block 53. The upper end of the pull rod 54 is provided with a circular protrusion for facilitating pulling up the pull rod 54. These designs facilitate the user to lift the pull rod 54, thereby adjusting the overall structure.

[0025] Working principle: pull the pull rod 54 that is slidably connected to the connecting seat 55, and a gap is generated between the friction block 53 fixed at the end of the pull rod 54 and the fan-shaped friction strip 51 fixed on the cover body 1. At this time, the connecting seat 55 is toggled. Because the ring gear 41 fixedly connected to the connecting seat 55 is rotationally connected to the cover body 1 through the second bearing 48, the ring gear 41 rotates synchronously inside the cover body 1, and the transmission gear 46 rotatably connected to the cover body 1 through the first bearing 47 is engaged with the ring gear 41. After the ring gear 41 rotates, the transmission gear 46 rotates synchronously. Because the square rod 44 fixed on the transmission gear 46 is slidably connected to the connecting bolt 42, and the connecting bolt 42 is threadedly connected to the auxiliary nut 43 fixed inside the cover body 1, After the rotation, the connecting bolt 42 will be unscrewed from the inside of the cover body 1 and then screwed into the gauge inspection port on the tank top. Similarly, by toggling the connecting seat 55 in the opposite direction, the ring gear 41 can be rotated in the opposite direction. The multiple connecting bolts 42 connected to the ring gear 41 through the transmission gear 46 will be unscrewed from the gauge inspection port on the tank top, and the cover body 1 can be quickly disassembled. Finally, the pull rod 54 is loosened. Under the action of the auxiliary spring 52 fixedly connected to the connecting seat 55 and the friction block 53 at both ends, the friction block 53 slides toward the sector-shaped friction strip 51 to eliminate the gap between the two. At this time, the friction lines on the friction block 53 will cooperate with the friction lines on the sector-shaped friction strip 51 to form a friction force that can limit the movement of the connecting seat 55 and even the ring gear 41, thereby locking the overall structure and achieving the purpose of improving stability.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust cover for the inspection port on the top of a chemical storage tank, characterized in that: include: A cover body (1), wherein the cover body (1) is provided with a mounting assembly (4) and a stop assembly (5), wherein the mounting assembly (4) comprises a connecting bolt (42) threadably connected to the tank top gauge opening, an auxiliary nut (43) fixedly arranged inside the cover body (1) and threadably connected to the connecting bolt (42), a square rod (44) slidably connected to the connecting bolt (42), a limit block (45) and a transmission gear (46) respectively fixedly mounted on both end surfaces of the square rod (44), a ring gear (41) meshingly connected to the transmission gear (46), a first bearing (47) for realizing a rotational connection between the transmission gear (46) and the cover body (1), and a second bearing (48) for realizing a rotational connection between the ring gear (41) and the cover body (1); The stop assembly (5) includes a sector-shaped friction strip (51) fixedly connected to the cover body (1), a connecting seat (55) fixedly connected to the ring gear (41), a pull rod (54) slidably connected to the connecting seat (55), a friction block (53) fixedly mounted on the lower end surface of the pull rod (54), and an auxiliary spring (52) with two ends fixedly connected to the connecting seat (55) and the friction block (53), respectively.

2. The dust cover for the inspection port on the top of a chemical storage tank according to claim 1, characterized in that: A handle (2) is fixedly provided on the outer surface of the cover body (1), and there are two handles (2) in total.

3. The dust cover for the inspection port on the top of a chemical storage tank according to claim 1, characterized in that: An expansion plate (3) is provided on the outer surface of the cover body (1), an auxiliary hole (12) for passing a connecting bolt (42) is provided on the bottom surface of the cover body (1), and a blocking column (11) is also fixedly mounted on the bottom surface of the cover body (1).

4. The dust cover for the inspection port on the top of a chemical storage tank according to claim 1, characterized in that: The limiting block (45) is located inside the connecting bolt (42), and the limiting block (45) is also slidably connected to the connecting bolt (42).

5. The dust cover for the inspection port on the top of a chemical storage tank according to claim 1, characterized in that: The first bearing (47) comprises a first inner ring and a first outer ring, the first inner ring is fixedly connected to the transmission gear (46), and the first outer ring is fixedly connected to the cover body (1).

6. The dust cover for the inspection port on the top of a chemical storage tank according to claim 1, characterized in that: The second bearing (48) comprises a second inner ring and a second outer ring, the second inner ring is fixedly connected to the ring gear (41), and the second outer ring is fixedly connected to the cover body (1), and the cover body (1) is made of stainless steel.

7. The dust cover for the inspection port on the top of a chemical storage tank according to claim 1, characterized in that: The side of the sector-shaped friction strip (51) close to the friction block (53) is provided with friction patterns for enhancing the friction force between the sector-shaped friction strip (51) and the friction block (53).

8. The dust cover for the inspection port on the top of a chemical storage tank according to claim 1, characterized in that: The upper end of the pull rod (54) is provided with a circular protrusion for facilitating upward pulling of the pull rod (54).

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