Handrail door capable of being opened up and down

Abstract

The invention relates to the technical field of railing doors, in particular to an up-and-down opening railing door which comprises a base, a supporting rod and a movable rod are arranged above the base, the bottom end of the supporting rod is fixedly connected with the base, a plurality of blocking rods arranged in sequence are arranged between the supporting rod and the movable rod, one end of each blocking rod is rotationally connected with the supporting rod, and the other end of each blocking rod is rotationally connected with the movable rod. A rotary locking structure matched with the movable rod is mounted at the other end of the stop rod; the rotating locking structure comprises a rotating shaft fixedly installed at the end, away from the supporting rod, of the blocking rod, the two ends of the rotating shaft are rotationally sleeved with supporting parts, the supporting parts are fixedly connected with the movable rod, and a first iron plate and a second iron plate are arranged on the two sides of the movable rod correspondingly. The occupied use space is reduced, the handrail door does not need to be pushed in the front-and-back direction, counter-acting force in the horizontal direction is avoided, a worker can safely stand on the vertical ladder, a chain is not needed, and the handrail door can be conveniently opened and closed.

Description

Technical Field

[0001] The invention relates to the technical field of railing doors, and in particular to a railing door which opens up and down. Background Art

[0002] Railing door is one of the products widely used in ship and marine engineering projects. It is an openable door set in the middle of the guardrail. It is usually used in the upper and lower openings of the straight ladder of the platform railing, or in the middle of the closed fence for people to enter and exit.

[0003] But it is worth thinking about that the railing doors on ships currently include chain railing doors and self-closing railing doors. Chain railing doors are prone to rust and corrosion, and it is inconvenient to hang and remove chains. Self-closing railing doors require a large enough space to open, and the width of ordinary installation platforms is limited, which cannot meet the needs of opening railing doors, and there are certain limitations.

[0004] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a railing door that opens up and down to solve the problem that the above-mentioned chain railing door is prone to rust and corrosion and the self-closing railing door needs to occupy a sufficiently large space when opened.

[0006] Based on the above-mentioned purpose, the present invention provides a railing door that opens up and down, including a base, a support rod and a movable rod are provided above the base, the bottom end of the support rod is fixedly connected to the base, a plurality of gear rods arranged in sequence are provided between the support rod and the movable rod, one end of the gear rod is rotatably connected to the support rod, and the other end of the gear rod is equipped with a rotating locking structure that is compatible with the movable rod.

[0007] Optionally, the rotation locking structure includes a rotating shaft fixedly mounted on one end of the gear lever away from the support rod, support parts are rotatably sleeved at both ends of the rotating shaft, the support parts and the movable rod are fixedly connected, a first iron plate and a second iron plate are respectively provided on both sides of the movable rod, the first iron plate and the second iron plate are connected by a plurality of connecting blocks, and the connecting blocks pass through the movable rod, the rotating shaft is equipped with a one-way rotating part adapted for the first iron plate, a plurality of mounting holes are opened on the movable rod, magnet blocks respectively matched with the first iron plate and the second iron plate are fixedly connected in the mounting holes, and the distance between the first iron plate and the second iron plate is greater than the thickness of the movable rod.

[0008] Optionally, the one-way rotating member includes a support plate fixedly mounted on a rotating shaft, a support ring is provided on the outer sleeve of the support plate, and the support ring is fixedly connected to the first iron plate, a plurality of first sliding grooves are provided on the support plate, a slider is provided in the first sliding groove for sliding, the slider and the inner wall of the first sliding groove are connected by a first spring, a plurality of stopping grooves are provided on the inner wall of the support ring, and an inclined surface matching the stopping groove is provided on the slider.

[0009] Optionally, a buffer plate is provided under the movable rod, a second slide groove is opened at the bottom end of the movable rod, a slide plate is slidably provided in the second slide groove, the top of the slide plate and the inner wall of the second slide groove are connected by a second spring, the bottom of the slide plate and the top of the buffer plate are fixedly connected, and the buffer plate is equipped with a pushing member respectively adapted to the first iron plate and the second iron plate.

[0010] Optionally, the pushing member includes two support plates fixedly mounted on the top of the buffer plate, the bottoms of the first iron plate and the second iron plate are fixedly connected with support blocks, and the support blocks are provided with inclined surfaces that are compatible with the support plates.

[0011] Optionally, an elastic pad is fixedly connected to the bottom of the buffer plate, and a plurality of countersunk holes are opened on the base.

[0012] Optionally, rectangular holes are respectively provided on the inner walls on both sides of the second slide groove, and limit blocks are provided in the rectangular holes, and the limit blocks are fixedly connected to the slide plate.

[0013] Optionally, a handle is fixedly connected to the side away from the first iron plate and the second iron plate, and a support frame is fixedly connected to the bottom end of the movable rod. A support hole is opened on the base, and two sides of the support frame are in contact with the inner walls of both sides of the support hole.

[0014] When the movable rod is moved to a preset position, the connection between the gear lever and the movable rod is locked and fixed by rotating the locking structure, so that the railing door is in an open state. When the staff passes through the railing door, the locking relationship between the gear lever and the movable rod is released by rotating the locking structure. Due to its own gravity, the movable rod rotates respectively relative to the support rod and the movable rod, and finally the movable rod moves in the opposite direction to the initial position, and the gear lever resumes its horizontal state. By opening the gear lever up and down, the occupied space is reduced, and there is no need to push the railing door in the front and rear directions to avoid the generation of horizontal reaction force, so that the staff can stand on the straight ladder more safely, and there is no need to use a chain, which is convenient for opening and closing the railing door. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area; Figure 3 It is a structural schematic diagram of a magnet block according to an embodiment of the present invention; Figure 4 It is a schematic structural diagram of a cutaway movable rod according to an embodiment of the present invention; Figure 5 This is a schematic structural diagram of a gear lever according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the separated slider and the support plate according to an embodiment of the present invention; Figure 7 Schematic diagram of the structure of the first iron plate and the second iron plate in an embodiment of the present invention.

[0017] The markings in the figure are: 1. base; 2. support rod; 3. movable rod; 4. gear lever; 5. first iron plate; 6. second iron plate; 7. connecting block; 8. rotating shaft; 9. supporting part; 10. supporting plate; 11. supporting ring; 12. first slide groove; 13. sliding block; 14. first spring; 15. retaining groove; 16. buffer plate; 17. second slide groove; 18. sliding plate; 19. second spring; 20. limiting block; 21. rectangular hole; 22. elastic pad; 23. supporting block; 24. supporting plate; 25. mounting hole; 26. magnet block; 27. handle; 28. countersunk hole; 29. ​​supporting frame; 30. supporting hole. DETAILED DESCRIPTION

[0018] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0019] This embodiment provides a kind of railing door that opens up and down, such as Figure 1The bottom end of the support rod 2 is fixedly connected to the base 1, and a plurality of sequentially arranged shift rods 4 are arranged between the support rod 2 and the movable rod 3. One end of the shift rod 4 is rotatably connected to the support rod 2, and the other end of the shift rod 4 is provided with a rotation locking structure adapted to the movable rod 3. The staff fixes the base 1 to the upper and lower openings of the straight ladder of the ship platform railing. When the railing door needs to be opened, the locking relationship between the shift rod 4 and the movable rod 3 is released by rotating the locking structure. The staff drives the movable rod 3 to move upward and moves it toward the support rod 2. The shift rod 4 rotates relative to the support rod 2 and the movable rod 3 respectively, and the shift rod 4 tilts. When the movable rod 3 moves to When in the preset position, the connection between the gear lever 4 and the movable rod 3 is locked and fixed by rotating the locking structure, so that the railing door is in an open state. When the staff passes through the railing door, the locking relationship between the gear lever 4 and the movable rod 3 is released by rotating the locking structure. Due to its own gravity, the movable rod 3 rotates relative to the support rod 2 and the movable rod 3 respectively, and finally the movable rod 3 moves in the opposite direction to the initial position, and the gear lever 4 returns to a horizontal state. By opening the gear lever 4 up and down, the occupied space is reduced, and there is no need to push the railing door in the front and back directions, avoiding the generation of horizontal reaction force, so that the staff can stand on the straight ladder more safely, and there is no need to use a chain, which is convenient for opening and closing the railing door.

[0020] In some optional specific embodiments, such as Figure 1 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the rotation locking structure includes a rotating shaft 8 fixedly mounted on one end of the gear lever 4 away from the support rod 2, support parts 9 are rotatably sleeved at both ends of the rotating shaft 8, the support parts 9 are fixedly connected to the movable rod 3, a first iron plate 5 and a second iron plate 6 are respectively provided on both sides of the movable rod 3, the first iron plate 5 and the second iron plate 6 are connected by a plurality of connecting blocks 7, and the connecting blocks 7 pass through the movable rod 3, the rotating shaft 8 is installed with a one-way rotating part adapted to the first iron plate 5, and the movable rod 3 is provided with a plurality of mounting holes 25, and magnets respectively matched with the first iron plate 5 and the second iron plate 6 are fixedly connected in the mounting holes 25 Block 26, the spacing between the first iron plate 5 and the second iron plate 6 is greater than the thickness of the movable rod 3, the one-way rotating member includes a support plate 10 fixedly mounted on the rotating shaft 8, the outer sleeve of the support plate 10 is provided with a support ring 11, and the support ring 11 is fixedly connected to the first iron plate 5, a plurality of first slide grooves 12 are provided on the support plate 10, a slider 13 is slidably provided in the first slide groove 12, the slider 13 and the inner wall of the first slide groove 12 are connected by a first spring 14, a plurality of stop grooves 15 are provided on the inner wall of the support ring 11, and an inclined surface adapted to the stop groove 15 is provided on the slider 13; The end of the slider 13 is located in the corresponding stop groove 15, the first iron plate 5 is in contact with the corresponding magnet block 26, and the first iron plate 5 and the magnet block 26 are magnetically attracted to each other, the first iron plate 5 and the second iron plate 6 are fixed relative to the movable rod 3, and when the staff drives the movable rod 3 to move upward and toward the support rod 2, the first iron plate 5 and the second iron plate 6 move synchronously with the movable rod 3, the gear lever 4 tilts, and the gear lever 4 drives the rotating shaft 8 and the support disk 10 to rotate relative to the support ring 11. The inclined surface on the slider 13 slides relative to the inner wall of the stop groove 15, and the first spring 14 is in a compressed state. Finally, the end of the slider 13 slides out of the stop groove 15. When the movable rod 3 moves to the preset position and the gear lever 4 is at the preset tilt angle, the slider 13 moves to one side of the corresponding stop groove 15, and the first spring 14 pushes the end of the slider 13 The first iron plate 5 and the second iron plate 6 are connected to each other by the locking groove 15, and the locking groove 15 is connected to the locking groove 15. The locking groove 15 is connected to the locking groove 15 by .... The locking groove 15 is connected to the locking groove 15. The locking groove 15 is connected to the locking groove 15. The locking groove 15 is connected to the locking groove 15. The locking groove 15 is connected to the locking groove 15. The locking groove 15 is connected to the locking groove 15. The locking groove 15 is connected to the locking groove 15. The locking groove 15 is connected to the locking

[0021] In some optional specific embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, a buffer plate 16 is provided below the movable rod 3, a second slide groove 17 is provided at the bottom end of the movable rod 3, a slide plate 18 is slidably provided in the second slide groove 17, the top of the slide plate 18 and the inner wall of the second slide groove 17 are connected by a second spring 19, the bottom of the slide plate 18 and the top of the buffer plate 16 are fixedly connected, the buffer plate 16 is equipped with a pusher respectively adapted to the first iron plate 5 and the second iron plate 6, the pusher includes two support plates 24 fixedly installed on the top of the buffer plate 16, the bottoms of the first iron plate 5 and the second iron plate 6 are fixedly connected with a support block 23, and the support block 23 An inclined surface adapted to the support plate 24 is provided on the top, an elastic pad 22 is fixedly connected to the bottom of the buffer plate 16, a plurality of countersunk holes 28 are provided on the base 1, rectangular holes 21 are respectively provided on the inner walls of both sides of the second slide groove 17, and a limit block 20 is provided in the rectangular hole 21, and the limit block 20 and the slide plate 18 are fixedly connected, and a handle 27 is fixedly connected to the side away from the first iron plate 5 and the second iron plate 6, and a support frame 29 is fixedly connected to the bottom end of the movable rod 3, and a support hole 30 is provided on the base 1, and the two sides of the support frame 29 are respectively in contact with the inner walls of both sides of the support hole 30; During the process of the movable rod 3 moving in the opposite direction to the initial position, the movable rod 3 drives the buffer plate 16 to move synchronously, and finally the elastic pad 22 contacts the base 1. As the movable rod 3 continues to move, the distance between the movable rod 3 and the buffer plate 16 becomes smaller, the length of the slide plate 18 in the second slide groove 17 increases, the second spring 19 is in a compressed state, and the second spring 19 is used for buffering, and the slide plate 18 drives the limit block 20 to slide relative to the rectangular hole 21. The design of the limit block 20 and the rectangular hole 21 allows the slide plate 18 and the buffer plate 16 to move smoothly relative to the movable rod 3. When the movable rod 3 drops to the lowest position, the bottom of the movable rod 3 contacts the top of the buffer plate 16, and the end of the support plate 24 contacts the inclined surface of the support block 23 instantaneously. The impact force generated by the instantaneous contact pushes the support block 23, the first iron plate 5 and the second iron plate 6 relative to the movable rod 3. After sliding in the opposite direction, the first iron plate 5 finally contacts the magnet block 26 again, and the first iron plate 5 and the second iron plate 6 are reset to the initial position relative to the movable rod 3, and the end of the slider 13 slides into the stop groove 15 from the horizontal direction, and the support plate 10 slides into the support ring 11, and the base 1 is fixedly installed in the preset position through the cooperation of the countersunk hole 28 opened on the base 1 and the external bolts. The handle 27 arranged on the first iron plate 5 and the second iron plate 6 is convenient for driving the movable rod 3, the first iron plate 5 and the second iron plate 6 to move synchronously. When the movable rod 3 drops to the lowest position, the movable rod 3 drives the bottom end of the support frame 29 to be inserted into the support hole 30, and the two sides of the support frame 29 are respectively abutted against the inner walls of the two sides of the support hole 30. The movable rod 3 is limited by the support frame 29 to reduce the possibility of the movable rod 3 shaking in the horizontal direction relative to the base 1, thereby increasing the overall stability.

[0022] When the movable rod 3 is moved to the preset position, the connection between the gear lever 4 and the movable rod 3 is locked and fixed by rotating the locking structure, so that the railing door is in the open state. When the staff passes through the railing door, the locking relationship between the gear lever 4 and the movable rod 3 is released by rotating the locking structure. Due to its own gravity, the movable rod 3 rotates relative to the support rod 2 and the movable rod 3, and finally the movable rod 3 moves in the opposite direction to the initial position, and the gear lever 4 returns to the horizontal state. By opening the gear lever 4 up and down, the occupied space is reduced, and there is no need to push the railing door in the front and rear directions to avoid the generation of horizontal reaction force, so that the staff can stand on the ladder more safely, and there is no need to use a chain, which is convenient for opening and closing the railing door. The end of the slider 13 is located in the corresponding stop groove 15, the first iron plate 5 is in contact with the corresponding magnet block 26, and the first iron plate 5 and the magnet block 26 are magnetically attracted to each other, the first iron plate 5 and the second iron plate 6 are fixed relative to the movable rod 3, and when the staff drives the movable rod 3 to move upward and toward the support rod 2, the first iron plate 5 and the second iron plate 6 move synchronously with the movable rod 3, the gear lever 4 tilts, and the gear lever 4 drives the rotating shaft 8 and the support disk 10 to rotate relative to the support ring 11. The inclined surface on the slider 13 slides relative to the inner wall of the stop groove 15, and the first spring 14 is in a compressed state. Finally, the end of the slider 13 slides out of the stop groove 15. When the movable rod 3 moves to the preset position and the gear lever 4 is at the preset tilt angle, the slider 13 moves to one side of the corresponding stop groove 15, and the first spring 14 pushes the end of the slider 13 When the first and second iron plates 5 and 6 are in a state of being moved relative to each other, the first and second iron plates 5 are in a state of being attracted to each other by the magnet block 26, and the first iron plate 5 drives the support ring 11 to separate from the support plate 10, and the end of the slider 13 slides out of the stop groove 15 in the horizontal direction, releasing the fixed relationship between the rotating shaft 8 and the support plate 10 and the first iron plate 5 and the movable rod 3. Due to its own gravity, the movable rod 3 rotates in the opposite direction relative to the support rod 2, and finally the movable rod 3 moves in the opposite direction to the initial position. During the process of the movable rod 3 moving in the opposite direction to the initial position, the movable rod 3 drives the buffer plate 16 to move synchronously, and finally the elastic pad 22 contacts the base 1. As the movable rod 3 continues to move, the distance between the movable rod 3 and the buffer plate 16 becomes smaller, the length of the slide plate 18 in the second slide groove 17 increases, the second spring 19 is in a compressed state, and the second spring 19 is used for buffering, and the slide plate 18 drives the limit block 20 to slide relative to the rectangular hole 21. The design of the limit block 20 and the rectangular hole 21 allows the slide plate 18 and the buffer plate 16 to move smoothly relative to the movable rod 3. When the movable rod 3 drops to the lowest position, the bottom of the movable rod 3 contacts the top of the buffer plate 16, and the end of the support plate 24 contacts the inclined surface of the support block 23 instantaneously. The impact force generated by the instantaneous contact pushes the support block 23, the first iron plate 5 and the second iron plate 6 relative to the movable rod 3. After sliding in the opposite direction, the first iron plate 5 finally contacts the magnet block 26 again, and the first iron plate 5 and the second iron plate 6 are reset to the initial position relative to the movable rod 3, and the end of the slider 13 slides into the stop groove 15 from the horizontal direction, and the support plate 10 slides into the support ring 11, and the base 1 is fixedly installed in the preset position through the cooperation of the countersunk hole 28 opened on the base 1 and the external bolts. The handle 27 arranged on the first iron plate 5 and the second iron plate 6 is convenient for driving the movable rod 3, the first iron plate 5 and the second iron plate 6 to move synchronously. When the movable rod 3 drops to the lowest position, the movable rod 3 drives the bottom end of the support frame 29 to be inserted into the support hole 30, and the two sides of the support frame 29 are respectively abutted against the inner walls of the two sides of the support hole 30. The movable rod 3 is limited by the support frame 29 to reduce the possibility of the movable rod 3 shaking in the horizontal direction relative to the base 1, thereby increasing the overall stability.

[0023] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

Claims

1. A railing door that opens up and down, comprising a base (1), characterized in that: A support rod (2) and a movable rod (3) are provided above the base (1); the bottom end of the support rod (2) is fixedly connected to the base (1); a plurality of sequentially arranged shift rods (4) are provided between the support rod (2) and the movable rod (3); one end of the shift rod (4) is rotatably connected to the support rod (2); and the other end of the shift rod (4) is provided with a rotation locking structure adapted to the movable rod (3).

2. The railing door that opens up and down according to claim 1, characterized in that: The rotation locking structure comprises a rotating shaft (8) fixedly mounted on one end of the shift rod (4) away from the support rod (2); support parts (9) are rotatably sleeved at both ends of the rotating shaft (8); the support parts (9) and the movable rod (3) are fixedly connected; a first iron plate (5) and a second iron plate (6) are respectively provided on both sides of the movable rod (3); the first iron plate (5) and the second iron plate (6) are connected by a plurality of connecting blocks (7); and the connecting blocks (7) penetrate the movable rod (3); a one-way rotating part matched with the first iron plate (5) is installed on the rotating shaft (8); a plurality of mounting holes (25) are opened on the movable rod (3); magnet blocks (26) respectively matched with the first iron plate (5) and the second iron plate (6) are fixedly connected in the mounting holes (25); and the spacing between the first iron plate (5) and the second iron plate (6) is greater than the thickness of the movable rod (3).

3. The railing door that opens up and down according to claim 2, characterized in that: The one-way rotating member comprises a support plate (10) fixedly mounted on the rotating shaft (8); a support ring (11) is sleeved on the outside of the support plate (10); the support ring (11) is fixedly connected to the first iron plate (5); a plurality of first sliding grooves (12) are provided on the support plate (10); a slider (13) is slidably provided in the first sliding groove (12); the slider (13) and the inner wall of the first sliding groove (12) are connected via a first spring (14); a plurality of retaining grooves (15) are provided on the inner wall of the support ring (11); and an inclined surface matching the retaining groove (15) is provided on the slider (13).

4. The railing door that opens up and down according to claim 2, characterized in that: A buffer plate (16) is provided below the movable rod (3), a second slide groove (17) is provided at the bottom end of the movable rod (3), a slide plate (18) is slidably provided in the second slide groove (17), the top of the slide plate (18) and the inner wall of the second slide groove (17) are connected via a second spring (19), the bottom of the slide plate (18) and the top of the buffer plate (16) are fixedly connected, and the buffer plate (16) is provided with pushers respectively adapted to the first iron plate (5) and the second iron plate (6).

5. The railing door that opens up and down according to claim 4, characterized in that: The pusher comprises two support plates (24) fixedly mounted on the top of the buffer plate (16); the bottoms of the first iron plate (5) and the second iron plate (6) are both fixedly connected with support blocks (23); and the support blocks (23) are provided with inclined surfaces matching the support plates (24).

6. The railing door that opens up and down according to claim 4, characterized in that: An elastic pad (22) is fixedly connected to the bottom of the buffer plate (16), and a plurality of countersunk holes (28) are provided on the base (1).

7. The railing door that opens up and down according to claim 4, characterized in that: Rectangular holes (21) are respectively formed on the inner walls of both sides of the second sliding groove (17), and a limit block (20) is provided in the rectangular hole (21), and the limit block (20) and the sliding plate (18) are fixedly connected.

8. The railing door that opens up and down according to claim 2, characterized in that: A handle (27) is fixedly connected to the side of the first iron plate (5) and the second iron plate (6) that is away from each other, and a support frame (29) is fixedly connected to the bottom end of the movable rod (3). A support hole (30) is provided on the base (1), and two sides of the support frame (29) are in contact with two side inner walls of the support hole (30).

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