Hatch cover with limiting structure

Abstract

The hatch cover with the limiting structure comprises a hatch cover body and a cargo barrel, one end of the hatch cover body is rotatably arranged on one side of the cargo barrel, the hatch cover further comprises the limiting structure, the limiting structure comprises a limiting rod, a rotary table and a plug pin, a mounting groove is formed in one end of the cargo barrel, the rotary table is rotatably connected into the mounting groove, and one end of the limiting rod is arranged on the rotary table. A plurality of inserting holes are sequentially formed in the limiting rod in the length direction of the limiting rod, and the inserting holes are used for inserting pins to pass through. When the hatch cover abuts against the plug pin inserted into the limiting rod, the hatch cover and the limiting rod form a triangle to keep the stability of the hatch cover when the hatch cover is opened, and meanwhile the stability of the hatch cover at different opening angles is achieved by changing the rotating angle of the limiting rod and inserting the plug pin into different inserting holes. Therefore, the opening angle of the hatch cover can be adjusted; and the plug pin and the limiting rod are simple in structure, cost is reduced, and meanwhile an operator can conveniently set the device.

Description

Technical Field

[0001] This utility model relates to the field of hatch covers, and in particular to a hatch cover with a limiting structure. Background Technology

[0002] A ship hatch cover is a component that is used to seal the interior of a ship's hold, primarily to prevent water from entering the internal structure and protecting cargo from getting wet and damaged. It also acts as a barrier, protecting the ship's internal structure from seawater corrosion in extreme weather conditions.

[0003] When installing this device on cargo drums to protect the goods inside, situations arise where the hatch cover needs to be opened to allow ventilation and sunlight exposure. Operators would need to rotate the hatch cover 180 degrees to keep it open. However, space is limited in ship holds, sometimes leaving insufficient room to keep the hatch cover open 180 degrees. Furthermore, different cargoes require different ventilation conditions, necessitating a structure that can adjust the opening angle of the hatch cover. Utility Model Content

[0004] This application provides a hatch cover with a limiting structure, which has the effect of adjusting the opening angle of the hatch cover.

[0005] The hatch cover with a limiting structure provided in this application adopts the following technical solution:

[0006] A hatch cover with a limiting structure includes a hatch cover and a cargo drum. One end of the hatch cover is rotatably mounted on one side of the cargo drum. The limiting structure further includes a limiting rod, a turntable, and a pin. One end of the cargo drum has an installation groove, and the turntable is rotatably connected within the installation groove. One end of the limiting rod is mounted on the turntable. Multiple insertion holes are sequentially formed along the length of the limiting rod, and these holes are for the pin to pass through. When the hatch cover is opened, the pin is inserted into the insertion holes and, through the rotation of the limiting rod, abuts against the side of the hatch cover facing the cargo drum.

[0007] With the above technical solution, when the hatch cover abuts against the pin of the insertion limit rod, the hatch cover and the limit rod form a triangle to maintain the stability of the hatch cover when it is open. At the same time, by changing the rotation angle of the limit rod and inserting the pin into different holes, the hatch cover can be stabilized at different opening angles, thereby achieving the adjustment of the hatch cover opening angle. The structure of the pin and the limit rod is simple, which reduces costs and makes it easy for operators to set.

[0008] Preferably, the outer end of the hatch cover is folded outward to form a flange, and the flange has several through holes for inserting a pin; when the hatch cover is closed, the flange abuts against the outer wall of the cargo barrel.

[0009] The above technical solution further restricts the movement of the hatch cover by inserting the pin into the through hole, reducing the possibility of the hatch cover being too heavy and causing the limit rod to be crushed. At the same time, the flange abuts against the outer wall of the cargo barrel, so that the through hole will not allow the air inside and outside to communicate when the hatch cover is closed.

[0010] Preferably, it also includes a placement platform, which is disposed on the outer wall of the cargo drum and located on the rotation path of the limiting rod. The placement platform is used to abut against the limiting rod. The placement platform is also provided with a placement hole for placing a pin.

[0011] The above technical solution avoids the loss of the pin by designing the placement hole on the placement platform, and at the same time reduces the need for operators to bend over significantly to pick up the limit rod, thus enhancing the convenience of operation.

[0012] Preferably, the cargo bin is further provided with a dustproof structure, which includes a storage box, a dustproof net, two springs, and a fixing component. The storage box is located on the side wall of the cargo bin at the end away from the turntable. The two springs are respectively located on both sides of the dustproof net, and the springs are parallel to the length direction of the limiting rod. One end of each spring is located inside the storage box, and the springs are always kept in a coiled state. The springs are used to drive the dustproof net to retract into the storage box. When the dustproof net is pulled out of the storage box, the fixing component is used to keep the dustproof net in an unfolded state.

[0013] Through the above technical solutions, the dustproof net can effectively block external dust and impurities from entering the cargo container, protecting the goods from contamination. The storage box allows the dustproof net to be easily rolled up and stored when not in use, avoiding damage or loss that may be caused by careless placement. At the same time, the spring provides the power for automatic retraction of the dustproof net. When the dustproof net no longer needs to be unfolded, the operator only needs to loosen the fastener, and the spring will automatically roll up the dustproof net and retract it into the storage box, improving the convenience of use.

[0014] Preferably, the fastener includes a hook and an elastic strip. The hook is disposed on the end of the dustproof net away from the storage box, and the elastic strip is disposed on the inner wall of the cargo bin relative to the hook. The hook is used to hang on the elastic strip.

[0015] With the above technical solution, when the hook is suspended on the elastic strip, the spring is prevented from retracting the dustproof net into the storage box, thus keeping the dustproof net in an unfolded state and playing a dustproof role.

[0016] Preferably, the dustproof structure further includes two sliders, the dustproof net is wrapped with a ring, and the cargo barrel is provided with two sliding grooves facing each other, the sliding grooves being arranged along the retraction direction of the spring; the two sliders are respectively arranged on the two sides of the dustproof net where the spring is provided, and the dustproof net is slidably connected to the sliding grooves through the sliders.

[0017] Through the above technical solution, the design of the slider and the slide groove restricts the dustproof net to move only along the length of the slide groove, thereby reducing the possible folding and twisting of the dustproof net when it is unfolded, thus protecting the spring and extending the service life of the dustproof structure.

[0018] Preferably, it also includes a hinge structure, which includes a hinge platform, a rotating shaft, and two hinge rods. The hinge platform is disposed on one end of the cargo drum, the rotating shaft is rotatably connected to the hinge platform, and one end of each of the two hinge rods is rotatably connected to the rotating shaft, while the other end is disposed on the top surface of the hatch cover. The hinge structure is used to rotatably connect the hatch cover to the cargo drum.

[0019] Through the above technical solution, the hinged structure enables the hatch cover to rotate smoothly via the pivot, making the opening and closing of the hatch cover simple and quick.

[0020] Preferably, it also includes a clamping device, which includes a gear, two torsion springs and two drive blocks. The gear is rotatably mounted on a rotating shaft, and the two torsion springs are respectively mounted on both ends of the rotating shaft and located on both sides of the gear. The hinge rod is fixed to the top surface of the hatch cover by the drive blocks. One end of each of the two torsion springs passes through the gear gap and is fixedly connected to the other torsion spring, and the other end abuts against the top surface of the hatch cover and is located between the bottom surface of the drive block and the top surface of the hatch cover.

[0021] Through the above technical solution, the torsion spring presses against the hatch cover when it is closed, thereby improving the sealing effect between the hatch cover and the cargo container. At the same time, if both ends of the torsion spring are fixed to the hatch cover or the cargo container, the operator needs to resist the force of the torsion spring when opening the hatch cover. However, the above design rotates the torsion spring on a pivot, which avoids the operator needing to resist the force of the torsion spring when opening the hatch cover. The gear restricts the rotation of the torsion spring, thereby ensuring the stability of the torsion spring in a static state, thus maintaining the sealing effect of the torsion spring on the hatch cover.

[0022] The main technical effects of this utility model are reflected in the following aspects:

[0023] 1. This utility model, by setting a limiting structure, allows the operator to stabilize the hatch cover at different opening angles by changing the rotation angle of the limiting rod and inserting the pin into different holes, thereby achieving adjustment of the hatch cover opening angle;

[0024] 2. This utility model, by setting a dustproof structure, can effectively prevent external dust, impurities, etc. from entering the interior of the cargo container, protecting the goods from contamination;

[0025] 3. This utility model improves the sealing effect between the hatch cover and the cargo barrel by setting a clamping device. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0027] Figure 2 This is a partial structural diagram of the hatch cover when it is open and fixed in an embodiment of this application;

[0028] Figure 3 Examples of embodiments in this application Figure 1 Enlarged structural diagram at point A;

[0029] Figure 4 This is a schematic diagram of the overall dustproof structure in the embodiments of this application;

[0030] Figure 5 Examples of embodiments in this application Figure 4 A magnified structural diagram at point B in the middle.

[0031] Reference numerals: 1. Hatch cover; 11. Flanged edge; 111. Through hole; 2. Cargo drum; 21. Mounting groove; 22. Slide groove; 3. Limiting structure; 31. Limiting rod; 311. Insertion hole; 32. Turntable; 33. Pin; 4. Placement platform; 41. Placement hole; 5. Dustproof structure; 51. Storage box; 52. Dustproof net; 521. Ring; 53. Spring; 54. Fixing component; 541. Hook; 542. Elastic strip; 55. Slider; 6. Hinge structure; 61. Hinge platform; 62. Rotating shaft; 63. Hinge rod; 7. Clamping device; 71. Gear; 72. Torsion spring; 73. Drive block. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-5 The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0033] This application discloses a hatch cover with a limiting structure:

[0034] Reference Figure 1A hatch cover with a limiting structure includes a hatch cover 1 and a cargo drum 2. One end of the hatch cover 1 is rotatably mounted on one side of the cargo drum 2. The hatch cover 1 also includes a limiting structure 3, which comprises a limiting rod 31, a turntable 32, and a pin 33. One end of the cargo drum 2 has a mounting groove 21, and the turntable 32 is rotatably connected within the mounting groove 21. One end of the limiting rod 31 is fixed to the turntable 32. Multiple insertion holes 311 are sequentially formed along the length of the limiting rod 31 for the pin 33 to pass through. When the hatch cover 1 abuts against the pin 33 of the insertion limit rod 31, the hatch cover 1 and the limit rod 31 form a triangle to maintain the stability of the hatch cover 1 when it is open. At the same time, by changing the rotation angle of the limit rod 31 and inserting the pin 33 into different holes 311, the hatch cover 1 can be stabilized at different opening angles, thereby achieving the adjustment of the opening angle of the hatch cover 1. The structure of the pin 33 and the limit rod 31 is simple, which reduces costs and makes it easy for operators to set.

[0035] Reference Figure 2 The outer end of the hatch cover 1 is folded outward to form a flange 11, and several through holes 111 are provided on the flange 11 for the insertion of the pin 33. When the hatch cover 1 is closed, the flange 11 abuts against the outer wall of the cargo drum 2. The pin 33 further restricts the movement of the hatch cover 1 by inserting into the through holes 111, reducing the possibility of the hatch cover 1 being too heavy and crushing the limit rod 31. At the same time, the flange 11 abuts against the outer wall of the cargo drum 2, so that the through holes 111 do not allow air to pass between the inside and outside of the hatch cover 1 when it is closed.

[0036] Reference Figure 1 and Figure 4 It also includes a placement platform 4, which is fixed to the outer wall of the drum 2. The placement platform 4 is located on the rotation path of the limiting rod 31 and is used to abut against the limiting rod 31. The placement platform 4 is also provided with a placement hole 41 for placing the pin 33. The design of the placement hole 41 on the placement platform 4 avoids the loss of the pin 33 and reduces the need for operators to bend over significantly to retrieve the limiting rod 31, thus enhancing the convenience of operation.

[0037] Reference Figure 4-5The cargo drum 2 is also equipped with a dustproof structure 5, which includes a storage box 51, a dustproof net 52, two springs 53, and a fixing member 54. The storage box 51 is fixed to the side wall of the cargo drum 2 away from the turntable 32. The two springs 53 are respectively fixed to the two sides of the dustproof net 52. The springs 53 are parallel to the length direction of the limiting rod 31. One end of the springs 53 is fixed inside the storage box 51. The springs 53 are always kept in a coiled state. The springs 53 are used to drive the dustproof net 52 to retract into the storage box 51. When the dustproof net 52 is pulled out from the storage box 51, the fixing member 54 is used to keep the dustproof net 52 in an unfolded state. The dustproof net 52 effectively blocks external dust and impurities from entering the cargo container 2, protecting the goods from contamination. The storage box 51 allows the dustproof net 52 to be easily rolled up and stored when not in use, preventing damage or loss that may result from careless placement. At the same time, the spring 53 provides the power for the automatic retraction of the dustproof net 52. When the dustproof net 52 no longer needs to be unfolded, the operator only needs to loosen the fixing part 54, and the spring 53 will automatically roll up the dustproof net 52 and retract it into the storage box 51, improving the convenience of use.

[0038] Reference Figure 4 The fastener 54 includes a hook 541 and an elastic strip 542. The hook 541 is fixed to the end of the dustproof net 52 away from the storage box 51. The opposite hook 541 of the elastic strip 542 is disposed on the inner wall of the cargo bin 2, and both ends of the elastic strip 542 are attached and fixed to the inner wall of the cargo bin 2. The hook 541 is used to suspend the elastic strip 542. When the hook 541 is suspended on the elastic strip 542, the spring 53 is prevented from tending to retract the dustproof net 52 into the storage box 51, thereby keeping the dustproof net 52 in an unfolded state and playing a role in dust prevention.

[0039] Reference Figure 4-5 The dustproof structure 5 also includes two sliders 55, and the dustproof net 52 is wrapped with a ring 521. The ring 521 is used to reduce the possibility of the dustproof net 52 falling apart during long-term operation. Two sliding grooves 22 are also provided inside the cargo drum 2, with the grooves 22 arranged along the retraction direction of the spring 53. The two sliders 55 are respectively fixed to the two sides of the dustproof net 52 where the spring 53 is fixed, and the dustproof net 52 is slidably connected to the sliding grooves 22 through the sliders 55. The design of the sliders 55 and the sliding grooves 22 restricts the dustproof net 52 to move only along the length of the sliding grooves 22, thereby reducing the possible folding and twisting of the dustproof net 52 when it is unfolded, thus protecting the spring 53 and extending the service life of the dustproof structure 5.

[0040] Reference Figure 3It also includes a hinge structure 6, which comprises a hinge platform 61, a rotating shaft 62, and two hinge rods 63. The hinge platform 61 is fixed to one end of the cargo drum 2, the rotating shaft 62 is rotatably connected to the hinge platform 61, and one end of each of the two hinge rods 63 is rotatably connected to the rotating shaft 62, while the other end is disposed on the top surface of the hatch cover 1. The hinge structure 6 is used to rotatably connect the hatch cover 1 to the cargo drum 2. The hinge structure 6 allows the hatch cover 1 to rotate smoothly via the rotating shaft 62, and makes the opening and closing operation of the hatch cover 1 simple and quick.

[0041] Reference Figure 3 It also includes a clamping device 7, which comprises a gear 71, two torsion springs 72, and two drive blocks 73. The gear 71 is rotatably mounted on a rotating shaft 62, and the two torsion springs 72 are respectively mounted on both ends of the rotating shaft 62 and located on both sides of the gear 71. The hinge rod 63 is fixed to the top surface of the hatch cover 1 via the drive blocks 73. One end of each of the two torsion springs 72 passes through the gap in the gear 71 and is fixedly connected to the other torsion spring 72, while the other end abuts against the top surface of the hatch cover 1 and is located between the bottom surface of the drive block 73 and the top surface of the hatch cover 1. When hatch cover 1 is closed, torsion spring 72 presses against hatch cover 1, thereby improving the sealing effect between hatch cover 1 and cargo drum 2. Simultaneously, if both ends of torsion spring 72 were fixed to hatch cover 1 or cargo drum 2, the operator would need to resist the force of torsion spring 72 when opening hatch cover 1. The above design, by rotating torsion spring 72 on shaft 62, avoids this resistance. Gear 71 restricts the rotation of torsion spring 72, ensuring its stability when stationary and maintaining its sealing effect on hatch cover 1. Furthermore, drive block 73 drives one end of torsion spring 72 when hatch cover 1 is closed, preventing it from remaining in the open position after hatch cover 1 is opened.

[0042] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A hatch cover with a limiting structure, comprising a hatch cover (1) and a cargo drum (2), wherein one end of the hatch cover (1) is rotatably disposed on one side of the cargo drum (2), characterized in that, It also includes a limiting structure (3), which includes a limiting rod (31), a turntable (32) and a pin (33). One end of the cargo drum (2) is provided with an installation groove (21), and the turntable (32) is rotatably connected in the installation groove (21). One end of the limiting rod (31) is set on the turntable (32). Multiple insertion holes (311) are sequentially provided on the limiting rod (31) along the length direction of the limiting rod (31). The insertion holes (311) are used for the pin (33) to pass through. When the hatch cover (1) is opened, the pin (33) is inserted into the insertion hole (311) and abuts against the side of the hatch cover (1) facing the cargo drum (2) by the rotation of the limiting rod (31).

2. A hatch cover with a limiting structure according to claim 1, characterized in that, The hatch cover (1) is folded outward at its outer end to form a flange (11). The flange (11) has several through holes (111) for inserting a pin (33). When the hatch cover (1) is closed, the flange (11) abuts against the outer wall of the cargo barrel (2).

3. A hatch cover with a limiting structure according to claim 1, characterized in that, It also includes a placement platform (4), which is set on the outer wall of the cargo drum (2). The placement platform (4) is located on the rotation path of the limiting rod (31). The placement platform (4) is used to abut against the limiting rod (31). The placement platform (4) is also provided with a placement hole (41), which is used to place the pin (33).

4. A hatch cover with a limiting structure according to claim 1, characterized in that, The cargo bin (2) is also equipped with a dustproof structure (5), which includes a storage box (51), a dustproof net (52), two springs (53), and a fixing member (54). The storage box (51) is located on the side wall of the cargo bin (2) away from the turntable (32). The two springs (53) are respectively located on both sides of the dustproof net (52). The springs (53) are parallel to the length direction of the limiting rod (31). One end of the springs (53) is located inside the storage box (51). The springs (53) are always kept in a coiled state. The springs (53) are used to drive the dustproof net (52) to retract into the storage box (51). When the dustproof net (52) is pulled out from the storage box (51), the fixing member (54) is used to keep the dustproof net (52) in an unfolded state.

5. A hatch cover with a limiting structure according to claim 4, characterized in that, The fastener (54) includes a hook (541) and an elastic strip (542). The hook (541) is located on the end of the dustproof net (52) away from the storage box (51). The elastic strip (542) is located on the inner wall of the cargo bin (2) relative to the hook (541). The hook (541) is used to hang on the elastic strip (542).

6. A hatch cover with a limiting structure according to claim 4, characterized in that, The dustproof structure (5) also includes two sliders (55), the dustproof net (52) is wrapped with a ring (521), and the cargo barrel (2) is also provided with two sliding grooves (22) facing each other. The sliding grooves (22) are arranged along the retraction direction of the spring (53). The two sliders (55) are respectively arranged on both sides of the dustproof net (52) where the spring (53) is provided. The dustproof net (52) is slidably connected to the sliding grooves (22) through the sliders (55).

7. A hatch cover with a limiting structure according to claim 1, characterized in that, It also includes a hinge structure (6), which includes a hinge platform (61), a rotating shaft (62) and two hinge rods (63). The hinge platform (61) is set on one end of the cargo drum (2), the rotating shaft (62) is rotatably connected to the hinge platform (61), and one end of the two hinge rods (63) is rotatably connected to the rotating shaft (62), and the other end is set on the top surface of the hatch cover (1). The hinge structure (6) is used to rotatably connect the hatch cover (1) to the cargo drum (2).

8. A hatch cover with a limiting structure according to claim 7, characterized in that, It also includes a clamping device (7), which includes a gear (71), two torsion springs (72) and two drive blocks (73). The gear (71) is rotatably mounted on the rotating shaft (62). The two torsion springs (72) are respectively mounted on both ends of the rotating shaft (62) and located on both sides of the gear (71). The hinge rod (63) is fixed to the top surface of the hatch cover (1) through the drive blocks (73). One end of the two torsion springs (72) passes through the gap of the gear (71) and is fixedly connected to the other torsion spring (72). The other end abuts against the top surface of the hatch cover (1) and is located between the bottom surface of the drive block (73) and the top surface of the hatch cover (1).

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