Device for fixing grating cover of cargo oil tank in open state

Abstract

The invention relates to the technical field of cargo oil tank grating cover opening and closing, in particular to a cargo oil tank grating cover opening state fixing device which can adjust the opening angle of a grating cover according to actual requirements, so that the grating cover can be kept in opening states at different angles, and practicability is improved. Comprising a grating cover arranged on the cargo oil tank in a covering mode and two handrail stand columns fixed to the cargo oil tank, two hinge bases are fixedly welded to the lower sides of the right ends of the two handrail stand columns, two hinge heads are symmetrically and fixedly arranged at the left end of the grating cover, and supports are symmetrically and fixedly arranged at the left ends of the two handrail stand columns; the two sets of transmission worm wheels are engaged with the two sets of worm shaft sections correspondingly, the two sets of transmission lead screws are both sleeved with transmission sliding blocks in a screwed mode, the two railing stand columns are both provided with limiting guide grooves, the two sets of upper connecting shafts are both rotationally connected with connecting battens, and lower connecting shafts are symmetrically and fixedly arranged at the front end and the rear end of the grille cover. The bottom ends of the two connecting strip plates are rotationally connected to the two lower connecting shafts correspondingly.

Description

Technical Field

[0001] The invention relates to the technical field of opening and closing of a cargo oil tank grille cover, and in particular to a device for fixing a cargo oil tank grille cover in an open state. Background Art

[0002] A cargo oil tank refers to a cabin on a ship for loading cargo oil. A grille cover is generally installed on the cargo oil tank. At present, after the grille cover on the cargo oil tank is opened, a hook is often used to hang it on a railing column. The use of a hook to fix the grille cover has the following disadvantages: the sea is rough and the grille cover is easy to shake, resulting in a poor fixing effect. In the prior art, a utility model patent with a patent publication number of CN210704497U discloses a device for fixing a cargo oil tank grille cover in an open state, including a railing column, and a cargo oil tank grille cover is hinged on the railing column through a pin shaft. The fixing device includes a base, a bolt, a butterfly nut, and a semi-waist eye plate. The device fixes the grille cover of the cargo oil tank when it is opened by connecting the butterfly nut with the bolt. After the grille cover is closed, the butterfly nut is screwed onto the bolt on the railing column, thereby solving the disadvantages of the grille cover having a poor fixing effect and being easy to shake.

[0003] However, the grille cover opening state fixing device in the above patent has certain disadvantages in actual use. When in use, the grille cover can only be fixed by rotating to a vertical state when it is opened. Therefore, there is no way to adjust the opening angle of the grille cover according to actual needs, and the grille cover cannot be kept in an open state at different angles, which is not practical enough. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a cargo oil tank grille cover opening state fixing device which can adjust the opening angle of the grille cover according to actual needs, so that the grille cover can maintain the opening state at different angles, thereby improving practicality.

[0005] Technical Solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for fixing the open state of a cargo oil tank grille cover, comprising a grille cover mounted on the cargo oil tank and two railing posts fixed on the cargo oil tank, and also comprising a connecting assembly and an opening and closing mechanism, wherein the connecting assembly comprises two sets of hinged seats, the two sets of hinged seats are fixedly welded to the lower sides of the right ends of the two railing posts, the left end of the grille cover is symmetrically fixed with two sets of hinged heads, the grille cover is rotatably mounted on the two railing posts through the cooperation of the two sets of hinged heads and the hinged seats, the opening and closing mechanism comprises a transmission shaft, the left ends of the two railing posts are symmetrically fixed with supports, the transmission shaft is rotatably mounted on the two sets of supports, a screw cap is fixedly provided at the front end of the transmission shaft, a regular hexagonal slot is provided on the screw cap, a crank is provided on the screw cap, and worm shafts are provided on both sides of the outer wall of the transmission shaft The top ends of the two railing posts are fixedly connected with a top beam, a cross beam is fixedly connected between the two railing posts, the top beam and the cross beam are welded and fixed on the two railing posts, two sets of transmission screws are symmetrically rotatably installed on the top beam and the cross beam, the bottom ends of the two sets of transmission screws are fixedly provided with transmission worm gears, the two sets of transmission worm gears are respectively meshed with the two sets of worm shaft sections, the two sets of transmission screws are threadedly sleeved with transmission sliders, the two railing posts are provided with limited guide grooves, the two sets of transmission sliders are respectively slidably installed on the two railing posts by cooperating with the limited guide grooves, the outer sides of the two sets of transmission sliders are fixed with upper connecting shafts, the two sets of upper connecting shafts are rotatably connected with connecting strips, the front and rear ends of the grille cover are symmetrically fixed with lower connecting shafts, and the bottom ends of the two sets of connecting strips are respectively rotatably connected to the two sets of lower connecting shafts.

[0007] Preferably, the crank comprises a rocker, a regular hexagonal pin is fixedly provided on the upper side of the rear end of the rocker and cooperates with the regular hexagonal slot, a handle is rotatably connected to the lower side of the front end of the rocker, and the regular hexagonal pin cooperates with the regular hexagonal slot and is inserted in the screw cap.

[0008] Preferably, the two groups of limit guide grooves are fixedly connected with guide rods, and the two groups of transmission slide blocks are provided with sliding holes, and the two groups of transmission slide blocks are respectively slidably mounted on the two groups of guide rods through the cooperation of the sliding holes.

[0009] Preferably, both sets of upper connecting shafts and lower connecting shafts are T-shaped cylindrical structures.

[0010] Preferably, a storage box is fixedly connected to the lower front end of a railing column next to the screw cap.

[0011] Preferably, a non-slip handle sleeve is fixed on the outer wall of the handle rod, and the surface of the non-slip handle sleeve is provided with non-slip textures.

[0012] Preferably, sliding sleeves are fixedly provided in the sliding holes on the two groups of transmission slide blocks, and the two groups of transmission slide blocks are respectively slidably sleeved on the two groups of guide rods through the cooperation of the sliding sleeves.

[0013] Preferably, the upper and lower ends of the two groups of limit guide grooves are fixedly connected with buffer rubber pads.

[0014] Compared with the prior art, the present invention has the following beneficial effects: when in use, the grille cover is initially covered on the cargo oil tank, and the transmission slide block is at the lowest end of the limiting guide groove. When the grille cover needs to be opened, the transmission shaft is rotated clockwise by screwing the crank on the cap, so that the transmission shaft drives the transmission screw to rotate through the meshing of the worm shaft section and the transmission worm gear, so that the transmission screw drives the transmission slide block to slide upward along the limiting guide groove, and then the transmission slide block pulls the grille cover through the connecting strip to rotate counterclockwise under the connection cooperation of the hinge head and the hinge seat, so that the hinge head is opened. The height of the railing column is sufficient, the length of the limiting guide groove is sufficient, and when the transmission slide block slides to the highest end of the limiting guide groove, the transmission slide block is in a state of being locked. In this process, the transmission slider can be arbitrarily stopped between the lowermost end and the uppermost end of the limiting guide groove. In this interval, the grille cover is in an inclined state, so that the opening angle of the grille cover can be adjusted between 0° and 90°, and the cooperation between the worm shaft section and the transmission worm wheel has a self-locking effect, so that the transmission screw rod will not rotate by itself, so that the transmission slider can be kept stationary at the corresponding height, thereby enabling the grille cover to be kept in the open state at different angles. The opening angle of the grille cover can be adjusted according to actual needs, so that the grille cover can be kept in the open state at different angles, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the axonometric structure of the present invention;

[0016] Figure 2 It is a left axonometric structural schematic diagram of the present invention;

[0017] Figure 3 It is a partial axonometric structural schematic diagram of the opening and closing mechanism in the present invention;

[0018] Figure 4 It is a partial axonometric structural schematic diagram of the present invention;

[0019] Figure 5 is an axonometric structural schematic diagram of the grille cover of the present invention;

[0020] Figure 6 It is a schematic diagram of a partial axonometric cross-sectional structure of the cooperation between the worm shaft segment and the transmission worm wheel in the present invention;

[0021] Figure 7 It is a schematic diagram of the axonometric structure of the transmission slider in the present invention;

[0022] Figure 8 It is a rear axonometric structural schematic diagram of the crank handle of the present invention;

[0023] Markings in the attached drawings: 1. Grille cover; 2. Railing column; 3. Articulated seat; 4. Articulated head; 5. Support; 6. Transmission shaft; 7. Screw cap; 8. Worm shaft section; 9. Top beam; 10. Cross beam; 11. Transmission screw; 12. Transmission worm gear; 13. Transmission slider; 14. Limiting guide groove; 15. Upper connecting shaft; 16. Connecting strip; 17. Lower connecting shaft; 18. Rocker; 19. Regular hexagonal pin; 20. Handle rod; 21. Guide rod; 22. Storage box; 23. Anti-slip handle; 24. Sliding sleeve; 25. Buffer rubber pad. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] Example

[0026] See also Figure 1-Figure 8The invention discloses a device for fixing a cargo oil tank grille cover in an open state, comprising a grille cover 1 mounted on the cargo oil tank and two railing columns 2 fixed on the cargo oil tank, two sets of hinged seats 3 are fixedly welded to the lower sides of the right ends of the two railing columns 2, two sets of hinged joints 4 are symmetrically fixedly arranged at the left end of the grille cover 1, the grille cover 1 is rotatably mounted on the two railing columns 2 through the cooperation of the two sets of hinged joints 4 and the hinged seats 3, the left ends of the two railing columns 2 are symmetrically fixedly provided with supports 5, a transmission shaft 6 is rotatably mounted on the two sets of supports 5, a screw cap 7 is fixedly arranged at the front end of the transmission shaft 6, a regular hexagonal slot is arranged on the screw cap 7, a crank is arranged on the screw cap 7, worm shaft sections 8 are arranged on both sides of the outer wall of the transmission shaft 6, top beams 9 are fixedly connected to the top ends of the two railing columns 2, and the two A crossbeam 10 is fixedly connected between the two railing posts 2, the top beam 9 and the crossbeam 10 are welded and fixed on the two railing posts 2, and two sets of transmission screws 11 are symmetrically rotatably installed on the top beam 9 and the crossbeam 10. The bottom ends of the two sets of transmission screws 11 are fixed with transmission worm gears 12, and the two sets of transmission worm gears 12 are respectively engaged with the two sets of worm shaft segments 8. The two sets of transmission screws 11 are threadedly sleeved with transmission sliders 13, and the two railing posts 2 are provided with limited position guide grooves 14. The two sets of transmission sliders 13 are respectively slidably installed on the two railing posts 2 through the cooperation with the limited position guide grooves 14. The outer sides of the two sets of transmission sliders 13 are fixed with upper connecting shafts 15, and the two sets of upper connecting shafts 15 are rotatably connected with connecting strips 16. The front and rear ends of the grille cover 1 are symmetrical The grille cover 1 is fixed with a lower connecting shaft 17, and the bottom ends of the two groups of connecting strips 16 are rotatably connected to the two groups of lower connecting shafts 17 respectively; when in use, the grille cover 1 is initially covered on the cargo oil tank, and the transmission slide block 13 is at the lowest end of the limiting guide groove 14. When the grille cover 1 needs to be opened, the transmission shaft 6 is rotated clockwise by the crank on the screw cap 7, so that the transmission shaft 6 drives the transmission screw 11 to rotate through the engagement of the worm shaft section 8 and the transmission worm wheel 12, so that the transmission screw 11 drives the transmission slide block 13 to slide upward along the limiting guide groove 14, and then the transmission slide block 13 pulls the grille cover 1 through the connecting strips 16 to rotate counterclockwise under the connection cooperation of the hinge head 4 and the hinge seat 3, so that the hinge head 4 is opened, the height of the railing column 2 is sufficient, and the length of the limiting guide groove 14 is It is sufficient that when the transmission slider 13 slides to the uppermost end of the limiting guide groove 14, the grille cover 1 is in a vertical state. During this process, the transmission slider 13 can be arbitrarily stopped between the lowermost end and the uppermost end of the limiting guide groove 14. In this interval, the grille cover 1 is in an inclined state, so that the opening angle of the grille cover 1 can be adjusted between 0° and 90°, and the cooperation between the worm shaft section 8 and the transmission worm wheel 12 has a self-locking effect, so that the transmission screw 11 will not rotate by itself, so that the transmission slider 13 can be kept stationary at the corresponding height, thereby enabling the grille cover 1 to be maintained in an open state at different angles, and the opening angle of the grille cover can be adjusted according to actual needs, so that the grille cover can be maintained in an open state at different angles, thereby improving practicality.

[0027] The crank comprises a rocker arm 18, a regular hexagonal pin 19 is fixedly provided on the upper side of the rear end of the rocker arm 18 and cooperates with the regular hexagonal slot, a handle rod 20 is rotatably connected to the lower side of the front end of the rocker arm 18, and the regular hexagonal pin 19 cooperates with the regular hexagonal slot and is inserted in the screw cap 7; when in use, the rocker arm 18 can be rotated by holding the handle rod 20, and then the rocker arm 18 drives the screw cap 7 to rotate through the cooperation of the regular hexagonal pin 19 and the regular hexagonal slot, and the screw cap 7 drives the transmission shaft 6 to rotate. After use, the regular hexagonal pin 19 can be pulled out, and the pluggable method is used to facilitate the installation and disassembly of the rocker arm to avoid the occurrence of accidental rotation operation.

[0028] The two groups of the limit guide grooves 14 are fixedly connected with guide rods 21, and the two groups of transmission sliders 13 are provided with sliding holes. The two groups of transmission sliders 13 are slidably mounted on the two groups of guide rods 21 through the cooperation of the sliding holes; by setting the guide rods 21, when the transmission screw 11 drives the transmission slider 13 to move, the transmission slider 13 can slide along the limit guide grooves 14 and the guide rods 21, and the stability of the transmission slider 13 when sliding is further improved through the guiding cooperation of the guide rods 21.

[0029] The two groups of upper connecting shafts 15 and lower connecting shafts 17 are both T-shaped cylindrical structures; by using the T-shaped cylindrical structure, the rotational cooperation between the connecting strip 16 and the upper connecting shaft 15 and the lower connecting shaft 17 is more stable, preventing the two ends of the connecting strip 16 from detaching from the upper connecting shaft 15 and the lower connecting shaft 17.

[0030] A storage box 22 is fixedly connected to the lower front end of a railing column 2 next to the screw cap 7; by providing the storage box 22, when the crank is pulled off the screw cap 7, the crank can be placed in the storage box 22 for storage so that it can be taken out and used at any time.

[0031] An anti-skid grip 23 is fixedly sleeved on the outer wall of the handle 20, and the surface of the anti-skid grip 23 is provided with anti-skid patterns; by providing the anti-skid grip 23, when the handle 20 is rotated by hand, the friction of the hand can be increased, making it difficult for the hand to slip.

[0032] Slide sleeves 24 are fixedly provided in the sliding holes on the two groups of transmission sliders 13, and the two groups of transmission sliders 13 are slidably mounted on the two groups of guide rods 21 respectively through the cooperation of the slide sleeves 24; by providing the slide sleeves 24, the transmission sliders 13 can slide more smoothly on the guide rods 21.

[0033] The upper and lower ends of the two groups of limit guide grooves 14 are fixedly connected with buffer rubber pads 25; by providing the buffer rubber pads 25, the transmission slider 13 can avoid direct collision with the upper and lower ends of the limit guide grooves 14 during the up and down sliding process, thereby playing a buffering role.

[0034] The working principle of the device for fixing the open state of the cargo oil tank grille cover of the present invention is that when in use, the grille cover 1 is initially covered on the cargo oil tank, and the transmission slide block 13 is at the lowest end of the limiting guide groove 14. When the grille cover 1 needs to be opened, the transmission shaft 6 is rotated clockwise by the crank on the screw cap 7, so that the transmission shaft 6 drives the transmission screw 11 to rotate through the meshing of the worm shaft section 8 and the transmission worm wheel 12, so that the transmission screw 11 drives the transmission slide block 13 to slide upward along the limiting guide groove 14, and then the transmission slide block 13 pulls the grille cover 1 through the connecting strip 16 to rotate counterclockwise under the connection cooperation between the hinge head 4 and the hinge seat 3, so that the hinge head 4 is opened, the height of the railing column 2 is sufficient, and the length of the limiting guide groove 14 is sufficient. When the movable slider 13 slides to the uppermost end of the limiting guide groove 14, the grille cover 1 is in a vertical state. During this process, the transmission slider 13 can be arbitrarily stopped between the lowermost end and the uppermost end of the limiting guide groove 14. In this interval, the grille cover 1 is in an inclined state, so that the opening angle of the grille cover 1 can be adjusted between 0° and 90°, and the cooperation between the worm shaft section 8 and the transmission worm wheel 12 has a self-locking effect, so that the transmission screw 11 will not rotate by itself, so that the transmission slider 13 can be kept stationary at the corresponding height, and then the grille cover 1 can be kept in an open state at different angles. When closing, the transmission shaft 6 can be rotated counterclockwise to slide the transmission slider 13 downward, so that the grille cover 1 is gradually closed.

[0035] The device for fixing the open state of the cargo oil tank grille cover of the present invention has common mechanical installation methods, connection methods or setting methods, and can be implemented as long as the beneficial effects can be achieved.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for fixing a cargo oil tank grille cover in an open state, comprising a grille cover (1) mounted on the cargo oil tank and two railing posts (2) fixed on the cargo oil tank, characterized in that: It also includes a connection component and an opening and closing mechanism; A connection assembly, the connection assembly comprising two sets of hinged seats (3), the two sets of hinged seats (3) being fixedly welded to the lower sides of the right ends of the two railing posts (2), the left end of the grille cover (1) being symmetrically fixed with two sets of hinged joints (4), the grille cover (1) being rotatably mounted on the two railing posts (2) through the cooperation of the two sets of hinged joints (4) and the hinged seats (3); The opening and closing mechanism comprises a transmission shaft (6), two railing posts (2) are symmetrically fixed with supports (5) at their left ends, the transmission shaft (6) is rotatably mounted on the two sets of supports (5), a screw cap (7) is fixedly mounted on the front end of the transmission shaft (6), a regular hexagonal slot is arranged on the screw cap (7), a crank is arranged on the screw cap (7), worm shaft sections (8) are arranged on both sides of the outer wall of the transmission shaft (6), a top beam (9) is fixedly connected to the top ends of the two railing posts (2), a cross beam (10) is fixedly connected between the two railing posts (2), the top beam (9) and the cross beam (10) are both welded and fixed to the two railing posts (2), two sets of transmission screw rods (11) are symmetrically rotatably mounted on the top beam (9) and the cross beam (10), and the two sets of transmission screw rods ( The bottom ends of the two transmission screws (11) are fixedly provided with a transmission worm gear (12), and the two transmission worm gears (12) are respectively meshed with the two worm shaft sections (8). The two transmission screws (11) are both threadedly sleeved with a transmission slider (13). The two railing posts (2) are both provided with a limit guide groove (14). The two transmission sliders (13) are respectively slidably installed on the two railing posts (2) by cooperating with the limit guide groove (14). The outer sides of the two transmission sliders (13) are both fixedly provided with an upper connecting shaft (15), and the two upper connecting shafts (15) are both rotatably connected with a connecting strip (16). The front and rear ends of the grille cover (1) are both symmetrically fixed with a lower connecting shaft (17), and the bottom ends of the two connecting strips (16) are respectively rotatably connected to the two lower connecting shafts (17).

2. A cargo oil tank grille cover opening state fixing device as claimed in claim 1, characterized in that: The crank comprises a rocker (18), a regular hexagonal pin (19) is fixedly provided on the upper side of the rear end of the rocker (18) and matched with the regular hexagonal slot, a handle (20) is rotatably connected to the lower side of the front end of the rocker (18), and the regular hexagonal pin (19) and the regular hexagonal slot are matched and inserted into the screw cap (7).

3. A cargo oil tank grille cover opening state fixing device as claimed in claim 2, characterized in that: The two groups of limit guide grooves (14) are fixedly connected with guide rods (21), and the two groups of transmission slide blocks (13) are provided with sliding holes. The two groups of transmission slide blocks (13) are respectively slidably mounted on the two groups of guide rods (21) through the cooperation of the sliding holes.

4. A cargo oil tank grille cover opening state fixing device as claimed in claim 3, characterized in that: The two groups of upper connecting shafts (15) and lower connecting shafts (17) are both T-shaped cylindrical structures.

5. A cargo oil tank grille cover opening state fixing device as claimed in claim 4, characterized in that: A storage box (22) is fixedly connected to the lower front end of a railing post (2) next to the screw cap (7).

6. A cargo oil tank grille cover opening state fixing device as claimed in claim 5, characterized in that: An anti-skid handle sleeve (23) is fixedly sleeved on the outer wall of the handle rod (20), and the surface of the anti-skid handle sleeve (23) is provided with anti-skid patterns.

7. A cargo oil tank grille cover opening state fixing device as claimed in claim 6, characterized in that: Sliding sleeves (24) are fixedly arranged in the sliding holes on the two groups of transmission slide blocks (13), and the two groups of transmission slide blocks (13) are respectively slidably sleeved on the two groups of guide rods (21) through the cooperation of the sliding sleeves (24).

8. A cargo oil tank grille cover opening state fixing device as claimed in claim 7, characterized in that: The upper and lower ends of the two groups of limit guide grooves (14) are fixedly connected with buffer rubber pads (25).

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