Opening and closing device for protecting marine handrail

Abstract

The invention relates to the technical field of marine handrail protection, in particular to an opening and closing device for marine handrail protection, which comprises an outer opening and closing frame, a stop lever is arranged on one side of the outer opening and closing frame, an expansion mechanism convenient for expanding an interception area is arranged on the stop lever, and a limiting mechanism convenient for limiting the opened stop lever is arranged on the outer opening and closing frame. One end of the blocking rod is provided with an opening and closing locking mechanism which can conveniently lock the closed blocking rod, the sleeve is arranged at one end of the blocking rod in a sleeving mode, the grip is fixedly connected to the sleeve, and the limiting inner strip is fixedly connected to the inner wall of the sleeve. According to the opening and closing device for protecting the marine handrail, the sleeve and the sliding groove are arranged at the other end of the blocking rod, the traction lock spring is arranged between the sleeve and the sliding groove, and meanwhile the connecting rod and the inclined clamping block are arranged at the outer end of the sleeve and connected with the angle steel blocking block, so that the closed blocking rod is conveniently limited.

Description

Technical Field

[0001] This invention relates to the field of marine railing protection technology, specifically to an opening and closing device for marine railing protection. Background Technology

[0002] Ship guardrails are safety facilities installed along the edges of ship decks or on both sides of gangways. They are primarily used to prevent people from falling and objects from falling into the sea. Chains are usually installed at the open sections of the guardrails used for passenger passage to provide additional protection. Existing technologies lack the structure for automatic locking when the guardrail is closed, positioning and anti-fall when the guardrail is open, and expansion of the interception area. This means that while traditional chain protection can meet the requirements of confined spaces, existing marine guardrails are cumbersome to operate and have poor safety. Directly using a rotating stop bar for interception is convenient to operate, but still requires manual locking. If not locked, the stop bar can easily rotate open when the ship rolls left and right or up and down. Moreover, the stop bar can only provide single-bar interception at the open part of the guardrail, resulting in a small interception area. Based on the shortcomings of existing technologies, this invention designs an opening and closing device for marine guardrail protection. Summary of the Invention

[0003] This invention provides an opening and closing device for marine railing protection, which has the advantages of automatic locking when the railing is closed, positioning and anti-fall when the railing is open, and expanding the interception area.

[0004] The present invention provides the following technical solution: an opening and closing device for marine railing protection, including an outer opening and closing frame, a stop bar provided on one side of the outer opening and closing frame, an expansion mechanism provided on the stop bar to facilitate the expansion of the interception area, a limiting mechanism provided on the outer opening and closing frame to facilitate the limiting of the open stop bar, and an opening and closing locking mechanism provided at one end of the stop bar to facilitate the locking of the closed stop bar. An opening and closing locking mechanism includes a sleeve, a handle, a limiting inner strip, a sliding groove, a connecting rod, a slanted locking block, an angle steel stop block, a slanted locking groove, and a traction locking spring. The sleeve is sleeved onto one end of the stop rod, the handle is fixedly connected to the sleeve, the limiting inner strip is fixedly connected to the inner wall of the sleeve, the sliding groove is located at the end of the stop rod facing the sleeve, the connecting rod is fixedly connected to the outer end of the sleeve, the slanted locking block is fixedly connected to the connecting rod, the angle steel stop block is located on one side of the connecting rod and the slanted locking block, the slanted locking groove is formed on the angle steel stop block, and the traction locking spring is located inside the sleeve.

[0005] As a preferred embodiment of the present invention, the limiting mechanism includes a limiting block, a movable push plate, a pull rod, a spring, and a locking groove. The limiting block is fixedly connected to the upper surface of one side of the outward opening and closing frame. The movable push plate is slidably connected to the inner cavity of the limiting block. The ramp locking block is slidably connected through the limiting block. The pull rod is fixedly connected to one side of the movable push plate. The spring is disposed on one side of the movable push plate in the inner cavity of the limiting block. The locking groove is movably disposed on one side of the ramp locking block.

[0006] As a preferred embodiment of the present invention, the extension mechanism includes a rotating frame, an extension rod, a hook, a locking hole, a limiting hole plate, and a locking pin. The rotating frame is fixedly connected to both ends of the lower surface of the stop bar. The top end of the extension rod is rotatably connected to the rotating frame. The hook is fixedly connected to the inner side of the extension rod. The locking hole is opened through the bottom end of the extension rod. The limiting hole plate is fixedly connected to the middle position of the lower surface of the stop bar. The locking pin is inserted into the limiting hole plate.

[0007] As a preferred embodiment of the present invention, a base is fixedly connected to the lower surface of the outward opening and closing frame, a rotating hole is provided through the outward opening and closing frame, a hinge bolt is inserted into the rotating hole, and a washer is provided on the hinge bolt.

[0008] As a preferred embodiment of the present invention, a connecting plate is fixedly connected to one end of the outer opening and closing frame, and an inner opening and closing plate is fixedly connected to one side of the connecting plate. The inner opening and closing plate is rotatably connected to the inside of the outer opening and closing frame and is rotatably connected to the hinge bolt.

[0009] As a preferred embodiment of the present invention, the limiting inner strip is slidably connected in the slide groove, and the traction locking spring is disposed between the bottom end of the inner cavity of the sleeve and the slide groove.

[0010] As a preferred embodiment of the present invention, the inclined locking block is movably engaged with the angle steel stop block, and the inclined locking block is slidably engaged with the inclined locking groove.

[0011] As a preferred embodiment of the present invention, the locking groove is formed through the inner opening and closing plate, and the ramp locking block is slidably inserted into the locking groove.

[0012] As a preferred embodiment of the present invention, the lock hole is disposed in the limiting hole plate, the locking pin is inserted through the limiting hole plate and the lock hole, and the hook can be optionally attached with a mesh cloth.

[0013] As a preferred embodiment of the present invention, the upper surface of the base is covered with an inner opening plate, and the gasket is disposed between the outer opening frame and the inner opening plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The opening and closing device of the marine railing protection is as follows: When it needs to be opened, the handle is held and the sleeve is pushed to the right. Under the limit of the inner limit bar and the sliding groove, the sleeve moves linearly to the right. The rightward movement of the sleeve pushes the angle steel block to move along with it through the connecting rod, so that the angle steel block moves to the right and disengages from the engagement with the angle steel block and the inclined slot. At this time, the stop bar can be lifted and rotated to open. When it is necessary to close the stop bar, simply release the stop bar and let it fall naturally. During the fall, the inclined surface of the inclined block contacts the inclined surface of the inclined slot. The downward acceleration of the inclined block uses the inclined surface to push the inclined block to one side and insert it into the angle steel block and the inclined slot. Then, the traction lock spring pulls the sleeve to move inward so that the inclined block is engaged in the angle steel block and the inclined slot to complete the locking. This device facilitates the quick closing and locking or quick opening of the stop bar.

[0015] 2. The opening and closing device of the ship's railing protection is designed so that when the stop bar is rotated upward, the inner opening plate also moves and rotates upward with the stop bar. During the upward rotation, the inner opening plate contacts the inclined surface of the ramp locking block and pushes it into the limiting block, allowing the inner opening plate to rotate smoothly. After the stop bar and the inner opening plate rotate to a vertical position, the locking groove is aligned with the ramp locking block. The spring pushes the movable push plate to insert the ramp locking block into the locking groove, thus locking the position of the inner opening plate and the stop bar. This device is convenient for limiting the position of the opened stop bar.

[0016] 3. The opening and closing device of the ship railing protection, when the railing is closed, pulls the locking pin out from the inside of the locking hole and the limiting hole plate, so that the extension rod hangs down naturally under the limit of the rotating frame. At this time, the interception net is hung on the hook to intercept the area below the railing and between the two sets of extension rods. This device facilitates the expansion of the interception area of ​​the railing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the main structure of the railing opening and closing device of the present invention; Figure 3 This is an exploded view of the connection between the opening / closing frame and the stop bar of the present invention; Figure 4 This is a schematic diagram of the connection structure between the stop lever and the extension mechanism of the present invention; Figure 5 This is an exploded view of the connection between the opening / closing frame and the expansion mechanism of the present invention; Figure 6 This is a schematic diagram of the main structure of the stop bar and limiting mechanism of the present invention; Figure 7 This is a schematic diagram of the exploded structure of the limiting mechanism of the present invention.

[0018] In the diagram: 1. Outer opening frame; 101. Base support; 102. Rotary hole; 103. Hinge bolt; 104. Washer; 2. Stop bar; 201. Connecting plate; 202. Inner opening plate; 3. Extension mechanism; 301. Rotating frame; 302. Extension rod; 303. Hook; 304. Lock hole; 305. Limiting hole plate; 306. Locking pin; 4. Limiting mechanism; 401. Limiting block; 402. Movable push plate; 403. Inclined locking block; 404. Pull rod; 405. Spring; 406. Lock groove; 5. Opening and locking mechanism; 501. Sleeve; 502. Handle; 503. Limiting inner strip; 504. Slide groove; 505. Connecting rod; 506. Angled locking block; 507. Angle steel stop block; 508. Angled locking groove; 509. Traction lock spring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-7 The opening and closing device for marine railing protection includes an outer opening and closing frame 1, a stop bar 2 is provided on one side of the outer opening and closing frame 1, an expansion mechanism 3 is provided on the stop bar 2 to facilitate the expansion of the interception area, a limiting mechanism 4 is provided on the outer opening and closing frame 1 to facilitate the limiting of the open stop bar 2, and an opening and closing locking mechanism 5 is provided at one end of the stop bar 2 to facilitate the locking of the closed stop bar 2. A base support 101 is fixedly connected to the lower surface of the outer opening and closing frame 1, a rotating hole 102 is provided through the outer opening and closing frame 1, a hinge bolt 103 is inserted into the rotating hole 102, a washer 104 is provided on the hinge bolt 103, an inner opening and closing plate 202 overlaps the upper surface of the base support 101, and the washer 104 is provided between the outer opening and closing frame 1 and the inner opening and closing plate 202.

[0021] Please see Figure 3 One end of the outer opening and closing frame 1 is fixedly connected to a connecting plate 201, and one side of the connecting plate 201 is fixedly connected to an inner opening and closing plate 202. The inner opening and closing plate 202 is rotatably connected to the inside of the outer opening and closing frame 1 and is rotatably connected to the hinge bolt 103.

[0022] Please see Figures 6-7The opening and closing locking mechanism 5 includes a sleeve 501, a handle 502, a limiting inner strip 503, a sliding groove 504, a connecting rod 505, a slanted locking block 506, an angle steel stop block 507, a slanted locking groove 508, and a traction locking spring 509. The sleeve 501 is sleeved on one end of the stop lever 2, the handle 502 is fixedly connected to the sleeve 501, the limiting inner strip 503 is fixedly connected to the inner wall of the sleeve 501, the sliding groove 504 is located at the end of the stop lever 2 facing the sleeve 501, and the connecting rod 505 is fixedly connected to the sleeve 501. At the outer end of 1, the inclined block 506 is fixedly connected to the connecting rod 505. The angle steel block 507 is set on one side of the connecting rod 505 and the inclined block 506. The inclined slot 508 is opened on the angle steel block 507. The traction lock spring 509 is set inside the sleeve 501. The limiting inner strip 503 is slidably connected in the slide groove 504. The traction lock spring 509 is set between the bottom end of the inner cavity of the sleeve 501 and the slide groove 504. The inclined block 506 is movably engaged with the angle steel block 507. The inclined block 506 is slidably engaged in the inclined slot 508.

[0023] By setting up a connecting rod 505, a slanted locking block 506, an angle steel stop block 507, and a slanted locking groove 508, the slanted locking block 506 can lock the stop lever 2 in place after it is closed. By setting up a sleeve 501 and a handle 502, the position of the slanted locking block 506 can be adjusted to disengage it from the angle steel stop block 507 and open the stop lever 2. By setting up a traction locking spring 509, the slanted locking block 506 can be pulled back a certain distance after being inserted into the angle steel stop block 507 and then locked in place with the slanted locking groove 508.

[0024] Please see Figure 5 The limiting mechanism 4 includes a limiting block 401, a movable push plate 402, a pull rod 404, a spring 405, and a locking groove 406. The limiting block 401 is fixedly connected to the upper surface of one side of the outer opening and closing frame 1. The movable push plate 402 is slidably connected to the inner cavity of the limiting block 401. The ramp locking block 403 is slidably connected to the limiting block 401. The pull rod 404 is fixedly connected to one side of the movable push plate 402. The spring 405 is set on one side of the movable push plate 402 in the inner cavity of the limiting block 401. The locking groove 406 is movably set on one side of the ramp locking block 403. The locking groove 406 is opened through the inner opening and closing plate 202. The ramp locking block 403 is slidably inserted into the locking groove 406.

[0025] By setting a limiting block 401, a ramp locking block 403, a spring 405, and a locking groove 406, the ramp locking block 403 can be inserted into the locking groove 406 to limit the opening of the barrier 2 and the inner opening plate 202 after the inner opening plate 202 and the stop bar 2 are rotated and unfolded. By setting a movable push plate 402 and a pull rod 404, the ramp locking block 403 can be pulled out from the locking groove 406 to release the locking of the inner opening plate 202 and the stop bar 2 when the stop bar 2 needs to be closed.

[0026] Please see Figure 4 The extension mechanism 3 includes a rotating frame 301, an extension rod 302, a hook 303, a locking hole 304, a limiting hole plate 305, and a locking pin 306. The rotating frame 301 is fixedly connected to both ends of the lower surface of the stop bar 2. The top end of the extension rod 302 is rotatably connected to the rotating frame 301. The hook 303 is fixedly connected to the inner side of the extension rod 302. The locking hole 304 is opened through the bottom end of the extension rod 302. The limiting hole plate 305 is fixedly connected to the middle position of the lower surface of the stop bar 2. The locking pin 306 is inserted into the limiting hole plate 305. The locking hole 304 is set in the limiting hole plate 305. The locking pin 306 is inserted through the limiting hole plate 305 and the locking hole 304. A mesh cloth can be optionally hung on the hook 303.

[0027] The rotating frame 301, the extension rod 302 and the hook 303 are provided, and the hook 303 is attached with a mesh cloth to expand the interception area of ​​the barrier bar 2. The locking hole 304, the limiting hole plate 305 and the locking pin 306 are provided to facilitate the folding, storage and fixation of the extension rod 302 during normal use and protection.

[0028] Working principle: When the opening and closing device of the marine railing protection is used, in the initial state, the outer opening and closing frame 1 is first provided with a base 101 and a rotating hole 102. The hinge bolt 103 and the washer 104, which are rotatably connected in the rotating hole 102, are connected to the inner opening and closing plate 202. The inner opening and closing plate 202 is connected to the stop bar 2 through the connecting plate 201. At the same time, an angle steel stop block 507 is provided at the other end of the stop bar 2 to facilitate the opening and closing of the railing opening for interception and protection in the narrow area of ​​the ship. The limiting block 401 is provided on the outer opening and closing frame 1. An inclined locking block 403 is provided inside the frame. The inclined locking block 403 is pushed by the movable push plate 402 and the spring 405 and is inserted into the locking groove 406 opened on the inner opening plate 202 inside the outer opening and closing frame 1 to limit the opening of the stop bar 2. At the other end of the stop bar 2, a sleeve 501 and a sliding groove 504 are provided. A traction locking spring 509 is provided between the two. The outer end of the sleeve 501 is provided with a connecting rod 505 and an inclined block 506 connected to the angle steel stop block 507 to limit the closing of the stop bar 2. When it is necessary to quickly close or quickly open the stop lever 2, first, when it is necessary to open, hold the handle 502 and push the sleeve 501 to the right. The sleeve 501 moves linearly to the right under the limit of the inner limit bar 503 and the slide groove 504. The rightward movement of the sleeve 501 pushes the angle steel block 507 to move along with it through the connecting rod 505, so that the angle steel block 507 moves to the right and disengages from the engagement with the angle steel block 507 and the inclined slot 508. At this time, lifting and rotating the stop lever 2 will open it. When it is necessary to close the stop lever, the sleeve 501 will move to the right. At time 2, simply release the stop lever 2 to allow it to fall naturally. During the fall, the inclined surface of the inclined block 506 contacts the inclined surface of the inclined slot 508. The downward acceleration of the inclined block 506 uses the inclined surface to push the inclined block 506 to one side and insert it into the angle steel block 507 and the inclined slot 508. Then, the traction lock spring 509 pulls the sleeve 501 to move inward so that the inclined block 506 is locked into the angle steel block 507 and the inclined slot 508, thus completing the locking. This device facilitates the quick closing and locking or quick opening of the stop lever 2.

[0029] When it is necessary to limit the opening of the lever 2, firstly, when the lever 2 is rotated upward, the inner opening plate 202 also moves upward and rotates with the lever 2. During the upward rotation, the inner opening plate 202 contacts the inclined surface of the ramp locking block 403 and pushes it into the limiting block 401, so that the inner opening plate 202 can rotate smoothly. After the lever 2 and the inner opening plate 202 are rotated to a vertical state, the locking groove 406 is aligned with the ramp locking block 403. The spring 405 pushes the movable push plate 402 to insert the ramp locking block 403 into the locking groove 406 to lock the position of the inner opening plate 202 and the lever 2. This device is convenient for limiting the opening of the lever 2.

[0030] When it is necessary to expand the interception area of ​​the baffle 2, firstly, when the baffle 2 is in the closed state, pull out the locking pin 306 from the inside of the locking hole 304 and the limiting hole plate 305 so that the extension rod 302 hangs down and unfolds naturally under the limitation of the rotating frame 301. At this time, the interception net is hung on the hook 303 to intercept the area below the baffle 2 and between the two sets of extension rods 302. This device facilitates the expansion of the interception area of ​​the baffle 2.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A marine railing protection opening and closing device, comprising an external opening and closing frame (1), characterized in that: A stop bar (2) is provided on one side of the external opening and closing frame (1). An expansion mechanism (3) is provided on the stop bar (2) to facilitate the expansion of the interception area. A limiting mechanism (4) is provided on the external opening and closing frame (1) to facilitate the limiting of the open stop bar (2). An opening and closing locking mechanism (5) is provided at one end of the stop bar (2) to facilitate the locking of the closed stop bar (2). The opening and closing locking mechanism (5) includes a sleeve (501), a handle (502), a limiting inner strip (503), a slide groove (504), a connecting rod (505), a slanted locking block (506), an angle steel stop block (507), a slanted locking groove (508), and a traction locking spring (509). The sleeve (501) is sleeved on one end of the stop bar (2), the handle (502) is fixedly connected to the sleeve (501), and the limiting inner strip (503) is fixedly connected to the sleeve (509). 1) The inner wall of the sleeve (501) is provided with the groove (504) at one end of the stop bar (2) facing the sleeve (501), the connecting rod (505) is fixedly connected to the outer end of the sleeve (501), the inclined block (506) is fixedly connected to the connecting rod (505), the angle steel block (507) is provided on one side of the connecting rod (505) and the inclined block (506), the inclined groove (508) is opened on the angle steel block (507), and the traction lock spring (509) is provided inside the sleeve (501).

2. The opening and closing device for marine railing protection according to claim 1, characterized in that: The limiting mechanism (4) includes a limiting block (401), a movable push plate (402), a ramp locking block (403), a pull rod (404), a spring (405), and a locking groove (406). The limiting block (401) is fixedly connected to the upper surface of one side of the outer opening frame (1). The movable push plate (402) is slidably connected to the inner cavity of the limiting block (401). The ramp locking block (403) is slidably connected through the limiting block (401). The pull rod (404) is fixedly connected to one side of the movable push plate (402). The spring (405) is disposed on one side of the movable push plate (402) in the inner cavity of the limiting block (401). The locking groove (406) is movably disposed on one side of the ramp locking block (403).

3. The opening and closing device for marine railing protection according to claim 1, characterized in that: The extension mechanism (3) includes a rotating frame (301), an extension rod (302), a hook (303), a locking hole (304), a limiting hole plate (305), and a locking pin (306). The rotating frame (301) is fixedly connected to both ends of the lower surface of the stop bar (2). The top end of the extension rod (302) is rotatably connected to the rotating frame (301). The hook (303) is fixedly connected to the inner side of the extension rod (302). The locking hole (304) is opened through the bottom end of the extension rod (302). The limiting hole plate (305) is fixedly connected to the middle position of the lower surface of the stop bar (2). The locking pin (306) is inserted into the limiting hole plate (305).

4. The opening and closing device for marine railing protection according to claim 1, characterized in that: The lower surface of the outward opening frame (1) is fixedly connected to a base (101). A rotating hole (102) is provided through the outward opening frame (1). A hinge bolt (103) is inserted into the rotating hole (102). A washer (104) is provided on the hinge bolt (103).

5. The opening and closing device for marine railing protection according to claim 1, characterized in that: One end of the outer opening frame (1) is fixedly connected to a connecting plate (201), and one side of the connecting plate (201) is fixedly connected to an inner opening plate (202). The inner opening plate (202) is rotatably connected inside the outer opening frame (1) and is rotatably connected to a hinge bolt (103).

6. The opening and closing device for marine railing protection according to claim 1, characterized in that: The limiting inner strip (503) is slidably connected in the slide groove (504), and the traction lock spring (509) is disposed between the bottom end of the inner cavity of the sleeve (501) and the slide groove (504).

7. The opening and closing device for marine railing protection according to claim 1, characterized in that: The inclined block (506) is movably engaged with the angle steel stop block (507), and the inclined block (506) is slidably engaged in the inclined slot (508).

8. The opening and closing device for marine railing protection according to claim 2, characterized in that: The locking groove (406) is formed through the inner opening plate (202), and the ramp locking block (403) is slidably inserted into the locking groove (406).

9. The opening and closing device for marine railing protection according to claim 3, characterized in that: The lock hole (304) is located inside the limiting hole plate (305), the locking pin (306) is inserted through the limiting hole plate (305) and the lock hole (304), and the hook (303) can be optionally hung with a mesh cloth.

10. The opening and closing device for marine railing protection according to claim 4, characterized in that: The upper surface of the base (101) is covered with an inner opening plate (202), and the gasket (104) is disposed between the outer opening frame (1) and the inner opening plate (202).

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