Movable handrail locking structure

Abstract

The invention relates to the technical field of movable handrail installation, and discloses a movable handrail locking structure. According to the scheme, an installation cylinder used for locking a handrail penetrates through a structure platform, the installation cylinder is embedded below the structure platform, and compared with a traditional mode that a base used for locking the handrail is directly arranged on the upper end face of the structure platform, the installation cylinder is embedded below the structure platform; the probability of tripping risks of the passing pedestrians is greatly reduced, and the passing safety of the passing pedestrians is ensured; meanwhile, through cooperation of a clamping piece, an elastic piece and a penetrating hole, the handrail can be quickly locked and positioned in the mounting cylinder, and meanwhile the handrail can be quickly moved away from the mounting cylinder; in the whole process, the handrail can be locked or disassembled only by controlling the handrail to move upwards or descend and rotate, the operation process is simple and convenient, the labor amount of workers is reduced, and meanwhile the working efficiency of the workers is improved.

Description

Technical Field

[0001] The invention relates to the technical field of movable railing installation, in particular to a movable railing locking structure. Background Art

[0002] Various types of small hatch covers are arranged on the open deck openings of ships. Among them, when the flat bolted small hatch cover is in the open state, the surrounding of the corresponding open deck opening needs to be protected by railings. When the small hatch cover is in the closed state, the top of the small hatch cover is also used as a passage.

[0003] like Figure 1 As shown, currently when arranging railings around the flat bolted small hatch covers, it is necessary to arrange a base for positioning the railings on the deck structure platform around the small hatch covers. When the flat bolted small hatch covers are opened, the railings are installed on the base, and a steel wire rope is installed between two adjacent railings for temporary protection; when the small hatch covers are closed, the steel wire rope is removed and the railings are removed from the base; since the base is arranged on the upper surface of the deck structure platform, the base is completely protruded from the surface of the structure platform; when the small hatch covers are closed and used as a passage, there is a high risk of tripping for passers-by, causing certain safety hazards. Summary of the invention

[0004] The object of the present invention is to provide a movable railing locking structure for solving the problem in the prior art that a base for fixing the railing is arranged on the upper surface of a structural platform, which results in a high tripping risk.

[0005] In order to achieve the above-mentioned purpose, an embodiment of the present application provides a movable railing locking structure for locking the railing on a structural platform, comprising:

[0006] The hook member comprises a first connecting portion extending up and down, and a second connecting portion vertically connected to the lower end of the first connecting portion, wherein the other end of the first connecting portion is vertically connected to the bottom wall of the railing;

[0007] A mounting tube passes through the structural platform in the vertical direction, the mounting tube is at least partially located below the structural platform, and the mounting tube has a receiving cavity for the railing to be inserted from top to bottom; a through hole is provided on the bottom wall of the receiving cavity for the second connecting portion to pass through;

[0008] An elastic member, which can be compressed in the up-down direction, wherein the upper end of the elastic member is connected to the railing, and the lower part of the accommodating cavity has a stopping portion for stopping the lower end of the elastic member;

[0009] A clamping member, arranged on the lower end surface of the mounting tube;

[0010] The railing is inserted into the accommodating cavity and drives the second connecting part to pass through the through hole, so that the lower end of the elastic member abuts against the stopping part and squeezes the elastic member, and the railing is rotated to stop the second connecting part and the clamping member.

[0011] In some embodiments of the present application, the upper end surface of the mounting tube does not protrude from the upper surface of the structural platform.

[0012] In some embodiments of the present application, the installation tube further includes a first lower sealing plate for forming the bottom wall of the accommodating cavity, and the through hole passes through the first lower sealing plate from top to bottom;

[0013] The clamping member comprises two clamping blocks arranged at intervals, the clamping blocks are fixedly connected to the lower end surface of the first lower sealing plate, and a clamping groove for blocking the second connecting portion is formed between the two clamping blocks.

[0014] In some embodiments of the present application, a waterproof cover is connected to the outer periphery of the railing so that when the railing is inserted into the installation tube, the installation tube is covered;

[0015] The elastic member is arranged between the inner wall of the accommodating cavity and the railing, and the upper end of the elastic member is connected to the lower end surface of the waterproof cover.

[0016] In some embodiments of the present application, the stopping portion includes a stopping ring coaxially connected to the inner wall of the accommodating cavity, and the projection of the inner contour of the stopping ring along the axial direction of the mounting tube is between the projections of the railing and the elastic member along the axial direction of the mounting tube; so that when the railing is inserted into the mounting tube, the lower end of the elastic member abuts against the stopping ring.

[0017] In some embodiments of the present application, the movable railing locking structure also includes a seal, which includes a large diameter portion and a small diameter portion connected to the lower end of the large diameter portion, and the outer diameter of the small diameter portion matches the inner diameter of the accommodating cavity.

[0018] In some embodiments of the present application, the movable railing locking structure also includes a sleeve disposed below the structural platform, the sleeve is sleeved on the outer periphery of the mounting tube, the bottom wall of the sleeve is spaced apart from the bottom wall of the mounting tube, and the sleeve and the mounting tube are connected via a flange.

[0019] In some embodiments of the present application, the seal further comprises a vent pipe axially extending through the seal, the upper and lower ends of the vent pipe both extend out of the seal, and one end of the vent pipe extending out of the seal is threadedly equipped with a clamping nut abutting against the seal, so that the vent pipe is clamped and positioned on the seal;

[0020] The upper end of the ventilation pipe is detachably connected with a sealing cover.

[0021] In some embodiments of the present application, a mounting plate is provided on the upper end surface of the large diameter portion, and the mounting plate has a through hole for the ventilation pipe to pass through; the clamping nut located above is pressed against the upper end surface of the mounting plate, and a pull ring is rotatably installed on the mounting plate.

[0022] In some embodiments of the present application, the sealing element is water-swellable rubber.

[0023] Compared with the prior art, the movable railing locking structure of the embodiment of the present invention has the following beneficial effects: the present solution connects the installation tube for locking the railing through the upper and lower parts to the structural platform, and makes the installation tube embedded under the structural platform; through the cooperation of the clamping piece, the elastic piece and the through-hole, the second connecting part passes through the through-hole and rotates the railing so that the second connecting part and the clamping piece are blocked to achieve the locking of the railing in the installation tube; the railing is rotated to rotate the second connecting part to the position corresponding to the through-hole and lift the railing to achieve the removal of the railing; the whole process only needs to control the upward or downward movement and rotation of the railing to achieve the locking or removal of the railing, the operation process is simple and convenient, and the workload of the staff is reduced while also improving the work efficiency of the staff; compared with the traditional method of directly arranging the base for locking the railing on the upper surface of the structural platform, the probability of causing the risk of tripping for passers-by is greatly reduced, thereby ensuring the safety of passers-by. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the state where the prior art railing locking structure is installed on a structural platform;

[0025] Figure 2 This is a schematic diagram of the state where the railing locking structure of the present invention is installed on a structural platform;

[0026] Figure 3 This is a schematic diagram of the second connecting portion of the present invention passing through the through hole;

[0027] Figure 4 It is a schematic diagram of the overall structure of the railing of the present invention;

[0028] Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement in the middle;

[0029] Figure 6 This is a schematic diagram of the connection relationship between the handrail, the elastic member, the waterproof cover, and the hook member of the present invention;

[0030] Figure 7 This is a structural schematic diagram of the handrail of the present invention being inserted into the installation cylinder;

[0031] Figure 8 This is a schematic diagram of the state where the handrail of the present invention is inserted into the installation tube;

[0032] Fig. 9 It is a top view schematic diagram of the matching relationship between the perforation, the hook part and the clamping part of the present invention;

[0033] Fig.10 For the present invention Fig. 9 Schematic diagram of the MM cross-section structure;

[0034] Fig.11 It is a schematic diagram of the sleeve structure of the present invention;

[0035] Fig.12 This is a schematic diagram of the installation relationship between the sealing member and the installation cylinder of the present invention;

[0036] Fig.13 This is a schematic diagram of the connection relationship between the pull ring and the mounting plate of the present invention;

[0037] Fig.14 It is a schematic diagram of the locking process of the railing of the present invention.

[0038] In the figure, 1, hook member; 11, first connecting portion; 12, second connecting portion;

[0039] 2. Installation cylinder; 21. Accommodation cavity; 22. First lower sealing plate; 23. Perforation; 24. Stop ring;

[0040] 3. Snap-fitting piece; 31. Snap-fitting block; 32. Chamfered portion;

[0041] 4. Elastic parts;

[0042] 5. Sealing member; 51. Large diameter portion; 52. Small diameter portion; 53. Ventilation pipe; 54. Clamping nut; 55. Sealing cover; 56. Mounting sheet; 57. Pull ring; 58. Mounting sleeve;

[0043] 6. Sleeve; 61. Third lower sealing plate; 7. Flange; 8. Railing; 81. Upper sealing plate; 82. Second lower sealing plate; 83. Waterproof cover; 84. Fixing ring; 9. Structural platform; 91. Opening. DETAILED DESCRIPTION

[0044] 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.

[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0046] like Figure 1-Figure 14 As shown, the embodiment of the present application proposes a movable railing locking structure, including: a hook member 1, including a first connecting portion 11 extending up and down, and a second connecting portion 12 vertically connected to the end of the first connecting portion 11, the other end of the first connecting portion 11 is used to vertically connect the bottom wall of the railing 8, in this solution, the first connecting portion 11 can be coaxially connected to the bottom wall of the railing 8, and can also be eccentrically connected to the bottom wall of the railing 8. Regardless of the connection method adopted, the setting of the perforation 23 needs to match and correspond to the second connecting portion 12; in this solution, the coaxial connection of the first connecting portion 11 and the bottom wall of the railing 8 is taken as an example for description; the railing 8 in this solution is a hollow tube (a galvanized water-gas pipe with a diameter of 42.25 mm can be used), an upper sealing plate 81 is provided at the upper end of the tube, and a second lower sealing plate 82 is provided at the lower end of the tube, and the first connecting portion 11 is fixedly connected to the lower end surface of the second lower sealing plate 82 (such as Figure 5 As shown), a fixing ring 84 is provided on the outer periphery of the railing 8, and the fixing ring 84 is used for pulling and fixing the wire rope. The fixing ring 84 adopts a round steel with a diameter of 5 mm and is welded to the railing 8; the first connecting part 11 and the second connecting part 12 in this scheme are integrally arranged and are made of a round steel with a diameter of 5 mm.

[0047] The mounting tube 2 is connected to the structural platform 9 through the thickness direction of the structural platform 9. The mounting tube 2 is at least partially located below the structural platform 9, so that part of the structure of the mounting tube 2 is embedded below the structural platform 9, so that the height of the mounting tube 2 protruding from the upper surface of the structural platform 9 is greatly reduced, thereby reducing the probability of pedestrians tripping; the mounting tube 2 has a receiving cavity 21 for inserting the railing 8 from top to bottom along the axial direction of the mounting tube 2, and a through hole 23 (the through hole 23 is along the thickness direction of the bottom wall of the receiving cavity 21) for the second connecting portion 12 to pass through the bottom of the mounting tube 2 is penetrated. The axial projection of the installation tube 2 is larger than the axial projections of the first connection part 11 and the second connection part 12, so that the second connection part 12 can freely pass through the through hole 23 from top to bottom or from bottom to top); the inner diameter of the installation tube 2 in this scheme is slightly larger than the outer diameter of the railing 8, and its diameter can be 62mm, and the wall thickness is set to 3mm, and it is made of a seamless steel pipe; in this embodiment, most of the main structure of the installation tube 2 can be arranged below the structural platform 9, so that the upper end of the installation tube 2 only protrudes a small height, so that the contact part between the installation tube 2 and the upper surface of the structural platform 9 is used as the first welding area ( Fig.12 The black area in the figure), and the contact area between the mounting tube 2 and the lower surface of the structural platform 9 is used as the second welding area ( Fig.12 ), so as to firmly mount the mounting tube 2 on the structural platform 9.

[0048] like Figure 7 As shown, the clamping member 3 is arranged on the lower end surface of the mounting tube 2. In this embodiment, the clamping member 3 is provided with one or more, and the plurality of clamping members 3 are arranged at intervals around the first connecting portion 11 to position the railing 8 along the circumferential direction of the mounting tube 2, and the clamping member 3 and the through hole 23 are staggered; and the elastic member 4 is arranged along the axial direction of the railing 8, and the upper end of the elastic member 4 is used to connect the railing 8; the accommodating cavity 21 has a stopper, and the railing 8 is inserted into the accommodating cavity 21, so that the lower end of the elastic member 4 abuts against the stopper; the railing 8 is inserted into the accommodating cavity 21, so that the lower end of the elastic member 4 abuts against the stopper and squeezes the elastic member 4, so that the second connecting portion 12 passes through the through hole 23, the railing 8 is rotated so that the second connecting portion 12 corresponds to the clamping member 3, and the railing 8 is released to reset the elastic member 4, so that the second connecting portion 12 is driven to move up and be clamped in the clamping member 3 and abut against the lower end surface of the mounting tube 2.

[0049] When this embodiment is used specifically, Fig.14As shown in , the staff needs to hold the railing 8 and align the railing 8 with the accommodating cavity 21 so that the second connecting portion 12 is at a position corresponding to the through hole 23, and then insert the bottom of the railing 8 into the accommodating cavity 21. In the above process, the hook member 1 will first enter the accommodating cavity 21. As the railing 8 continues to move downward in the accommodating cavity 21, the elastic member 4 will abut against the stopper and begin to compress the elastic member 4, so that the second connecting portion 12 and the first connecting portion 11 pass through the through hole 23 in sequence and the second connecting portion 12 is placed below the clip 3. Then, the railing 8 is rotated so that the second connecting portion 12 rotates to a position corresponding to the clip 3, and finally the force applied to the railing is removed. The downward pressure on 8 causes the railing 8 to move up a short distance under the action of the elastic member 4, and simultaneously drives the second connecting portion 12 to move up, and finally the second connecting portion 12 is clamped in the clamping member 3 and the second connecting portion 12 is abutted against the lower end surface of the installation tube 2. The clamping member 3 is used to realize the positioning of the railing 8 along the circumferential direction of the installation tube 2, and the second connecting portion 12 is abutted against the lower end surface of the installation tube 2 and under the cooperation of the elastic member 4, it is used to realize the positioning of the railing 8 along the axial direction of the installation tube 2; thus, the railing 8 is positioned and locked in the installation tube 2; then the wire rope is connected to the fixing ring 84 provided on the railing 8, so as to realize the enclosure of the opening 91 on the structural platform 9 (such as Figure 2 When the railing 8 needs to be removed, the staff only needs to press the railing 8 downward to make the second connection part 12 withdraw from the clamping part 3, then rotate the railing 8 and make the second connection part 12 rotate to the position corresponding to the through hole 23, and then pull up the railing 8 to achieve the effect of removing the railing 8 from the installation tube 2. The whole process is simple and convenient.

[0050] In some embodiments of the present application, in order to further reduce the risk of pedestrians tripping when passing by, in this embodiment, the mounting tube 2 can be completely arranged in the structural platform 9, so that the upper end surface of the mounting tube 2 does not protrude from the upper surface of the structural platform 9 (is flush with the upper surface of the structural platform 9); when in a non-working state, the mounting tube 2 is completely embedded under the structural platform 9, so that the upper surface of the structural platform 9 is a flat surface; it should be noted that: when this arrangement is adopted, only the contact portion between the lower end surface of the structural platform 9 and the mounting tube 2 is used as a welding area for fixing the mounting tube 2 on the structural platform 9.

[0051] In some embodiments of the present application, Figure 7As shown, the mounting tube 2 also includes a first lower sealing plate 22 for forming the bottom wall of the accommodating chamber 21, and the through hole 23 is arranged through the thickness direction of the first lower sealing plate 22; the clamping member 3 includes two spaced-apart clamping blocks 31, and the clamping blocks 31 are fixedly connected to the lower end surface of the first lower sealing plate 22. The interval between the two matching clamping blocks 31 forms a clamping groove for blocking the second connecting part 12, and the distance between the two clamping blocks 31 is not less than the outer diameter of the second connecting part 12, which is used to clamp and block the second connecting part 12 to realize the circumferential positioning of the railing 8 along the mounting tube 2.

[0052] In this solution, a plurality of matching clamping blocks 31 are provided at intervals around the first connecting portion 11 on the lower end surface of the first lower sealing plate 22. Fig. 9 As shown, when the second connection part 12 passes through the through hole 23 and is located below the clamping block 31, the staff can rotate the railing 8 to any angle, as long as the second connection part 12 can rotate with the railing 8 to a position directly below the area between the two matching clamping blocks 31, and then remove the downward pressure applied to the railing 8, and drive the railing 8 to move up a short distance under the action of the elastic member 4, so that the second connection part 12 moves up and is clamped in the clamping groove, thereby realizing the positioning of the railing 8 along the circumferential direction of the installation tube 2; Fig.10 As shown, the two matching clamping blocks 31 can be provided with an arc-shaped chamfered portion 32 on the back side, so that when the staff rotates the handrail 8, the second connecting portion 12 can easily pass over the clamping block 31 and be clamped in the clamping groove under the guidance of the arc-shaped chamfered portion 32.

[0053] In this embodiment, the distance between two adjacent clamping blocks 31 in two adjacent groups of clamping members 3 can also be set to be no less than the outer diameter of the second connecting portion 12. Fig. 9 As shown, as a result, when the second connecting part 12 rotates with the railing 8, as long as the second connecting part 12 rotates to a position directly below the area between any two clamping blocks 31, the second connecting part 12 can be clamped, thereby achieving the positioning of the railing 8 along the circumferential direction of the mounting tube 2 when the railing 8 is at different angles, so that there are more options for the locking angle of the railing 8, thereby improving the applicability of the locking structure.

[0054] In some embodiments of the present application, Figure 5 , Figure 6 As shown, in this embodiment, a waterproof cover 83 is coaxially connected to the outer periphery of the railing 8, so that when the railing 8 is inserted into the installation tube 2, it is used to cover the upper end of the installation tube 2; Figure 8As shown, the elastic member 4 is arranged between the inner wall of the accommodating cavity 21 and the railing 8, and the upper end of the elastic member 4 is connected to the lower end surface of the waterproof cover 83 (the elastic member 4 in this solution can be a spring sleeved on the outer periphery of the railing 8). When the railing 8 is locked in the installation tube 2, the waterproof cover 83 is at the upper end of the installation tube 2 (the installation position of the waterproof cover 83 relative to the railing 8 must meet the following requirements: when the second connecting portion 12 moves down to the position below the clamping block 31, the lower end surface of the waterproof cover 83 will not contact the upper end surface of the installation tube 2). The waterproof cover 83 is in contact with or just in contact with the upper end surface of the installation tube 2. When the railing 8 moves up a short distance and the second connecting part 12 is snapped into the snap-in groove, the lower end surface of the waterproof cover 83 and the upper end surface of the installation tube 2 will be spaced a certain distance apart), thereby covering the installation tube 2. This can effectively prevent rainwater or debris in the external environment from invading the accommodating chamber 21 through the gap between the railing 8 and the inner wall of the accommodating chamber 21, thereby ensuring the cleanliness of the interior of the accommodating chamber 21, thereby protecting the locking structure when it is in working condition.

[0055] In some embodiments of the present application, Figure 7 , Figure 8 As shown, the stopper includes a stopper ring 24 coaxially arranged on the inner wall of the accommodating cavity 21, and the projection of the inner contour of the stopper ring 24 along the axial direction of the mounting tube 2 is between the projections of the railing 8 and the elastic member 4 along the axial direction of the mounting tube 2, so that the railing 8 can pass through the stopper ring 24 from top to bottom or from bottom to top, and the lower end of the elastic member 4 abuts against the stopper ring 24 (as shown in FIG. Figure 8 As shown in the figure, the handrail 8 continues to be moved downward, and the elastic member 4 is squeezed, so that when the second connecting portion 12 rotates with the handrail 8 to be directly below the area between the two clamping blocks 31, the force applied to the handrail 8 is removed, so that the handrail 8 moves upward under the action of the elastic member 4 and the second connecting portion 12 is clamped in the clamping groove, and at the same time, the second connecting portion 12 abuts against the lower end surface of the installation tube 2 (that is, the lower end surface of the first lower sealing plate 22), finally realizing the axial and circumferential locking positioning of the handrail 8 relative to the installation tube 2.

[0056] In some embodiments of the present application, Fig.12 As shown, the movable railing locking structure also includes a sealing member 5, which includes a large diameter portion 51 and a small diameter portion 52 connected to the lower end of the large diameter portion 51, and the outer diameter of the small diameter portion 52 matches the inner diameter of the accommodating chamber 21; when the mounting tube 2 is in a non-working state (i.e., the railing 8 is not inserted into the mounting tube 2), the small diameter portion 52 of the sealing member 5 is inserted into the accommodating chamber 21 and the large diameter portion 51 is abutted against the upper end surface of the mounting tube 2; and then, through the cooperation between the large diameter portion 51 and the small diameter portion 52, the accommodating chamber 21 is blocked when the mounting tube 2 is in a non-working state to prevent rainwater or debris in the external environment from intruding therein, thereby ensuring the cleanliness of the accommodating chamber 21.

[0057] In some embodiments of the present application, Fig.12 As shown, the movable railing locking structure also includes a sleeve 6 arranged below the structural platform 9, the sleeve 6 includes a sleeve and a third lower sealing plate 61 arranged at the bottom of the sleeve, the sleeve 6 is sleeved on the outer periphery of the mounting tube 2 and the third lower sealing plate 61 and the first lower sealing plate 22 are spaced apart (for accommodating the movement of the clamping block 31 and the second connecting portion 12 after passing through the through hole 23 to provide a space margin), the sleeve 6 and the mounting tube 2 are connected via a flange 7; the flange 7 is a flange plate respectively arranged on the outer periphery of the mounting tube 2 and the outer periphery of the sleeve 6, the two flange plates are connected via fasteners (bolts), in order to improve the sealing performance of the connection between the two flange plates, a rubber gasket can be arranged between the two flange plates, so that the two flange plates are sealed under the action of the fasteners. The flanges fit tightly together, so that the rubber gasket is in a compressed state, which can prevent moisture in the external environment from invading the space enclosed by the mounting tube 2 and the sleeve 6, and ensure the sealing of the above space (to avoid causing unnecessary rust to the internal structure); at the same time, the setting of the sleeve 6 can also effectively prevent objects under the structural platform 9 from accidentally touching the clamping block 31 arranged on the lower end surface of the mounting tube 2 when moving, causing the clamping block 31 to be collided and separated from the mounting tube 2, thereby increasing the service life of the locking structure; when the inside of the sleeve 6 needs to be cleaned or the clamping block 31 needs to be maintained or replaced, the sleeve 6 can be removed from the mounting tube 2 by removing the fasteners, thereby completing the subsequent cleaning or maintenance and replacement work.

[0058] In some embodiments of the present application, Fig.12As shown, the seal 5 also includes a vent pipe 53 (with an air hole running through the vent pipe 53 axially) arranged along the axial direction of the seal 5, and the upper and lower ends of the vent pipe 53 extend out of the seal 5. One end of the vent pipe 53 extending out of the seal 5 is threadedly equipped with a clamping nut 54 abutting against the seal 5, so that the vent pipe 53 is clamped and positioned on the seal 5; a sealing cover 55 is detachably connected to the upper end of the vent pipe 53 (the sealing cover 55 is connected to the upper end of the vent pipe 53 by a threaded manner), and threads are arranged at the upper and lower ends of the vent pipe 53, and the length of the thread located at the upper end is greater than the length of the thread located at the lower end, so that the sealing cover 55 and the clamping nut 54 can be installed in coordination with the upper end thread of the vent pipe 53; when it is necessary to restructure the platform 9 When the railing 8 is arranged around the opening 91 on the upper surface, the sealing member 5 needs to be taken out from the accommodating chamber 21 first. When the sealing member 5 blocks the accommodating chamber 21, the accommodating chamber 21 is basically in a sealed state. At this time, if the sealing member 5 is pulled outward, it is difficult to pull out the sealing member 5 due to the effect of air pressure. At this time, the sealing cover 55 assembled on the vent pipe 53 is removed, so that the upper end of the vent pipe 53 is connected with the outside world, and then the environment inside the accommodating chamber 21 is connected with the outside world through the vent pipe 53. At this time, the sealing member 5 can be easily taken out from the accommodating chamber 21; Note: The large diameter portion 51 in this scheme should be set as thin as possible to minimize the height of the locking structure protruding from the upper surface of the structural platform 9 when the locking structure is in a non-working state.

[0059] In some embodiments of the present application, in order to enable the staff to remove the seal 5 more conveniently, such as Fig.12 As shown, a mounting sheet 56 (a metal sheet) is provided on the upper end surface of the large diameter portion 51. Fig.13 As shown, the mounting plate 56 has a through hole for the vent pipe 53 to pass through; the clamping nut 54 located above abuts against the upper end surface of the mounting plate 56, thereby pressing the mounting plate 56 against the upper end surface of the seal 5, thereby positioning the mounting plate 56, and mounting sleeves 58 (connected by welding) are respectively provided on both sides of the through hole on the mounting plate 56 for installing the pull ring 57, and the two ends of the pull ring 57 are rotatably installed in the mounting sleeve 58, so that the pull ring 57 can rotate freely relative to the mounting plate 56; when the mounting tube 2 is in a non-working state, the pull ring 57 is rotated to a horizontal state to reduce the occupation of the vertical space; when the seal 5 needs to be taken out from the accommodating chamber 21, the pull ring 57 is rotated to a vertical state to pull the seal 5 out of the accommodating chamber 21.

[0060] In some embodiments of the present application, the seal 5 in this solution is water-swellable rubber, which can expand 2-3 times after coming into contact with water and fill all irregular surfaces and gaps between the small diameter portion 52 and the inner wall of the accommodating cavity 21, thereby achieving a better sealing effect on rainy days.

[0061] The working process of the present invention is as follows: when it is necessary to set a railing 8 around the opening 91 on the restructured platform 9, first pull the sealing member 5 out of the accommodating cavity 21, then insert the bottom of the railing 8 into the accommodating cavity 21 (align the second connecting portion 12 with the through hole 23), so that the second connecting portion 12 passes through the through hole 23 and moves down to a position below the clamping block 31, then rotate the railing 8 to a certain angle, so that the second connecting portion 12 is located directly below the middle of the area surrounded by the two adjacent clamping blocks 31, then remove the force applied to the railing 8, so that the railing 8 moves up a short distance under the action of the elastic member 4, and then the second connecting portion 12 moves up and is clamped in the clamping groove, and at the same time the second connecting portion 12 abuts against the lower end surface of the first lower sealing plate 22, finally realizing the locking positioning of the railing 8 along the circumferential and axial directions of the mounting tube 2.

[0062] In summary, the embodiment of the present invention provides a movable railing locking structure. In this solution, the installation tube 2 for locking the railing 8 is set through the structural platform 9, and the installation tube 2 is set below the structural platform 9. Compared with the traditional method of directly setting the base for locking the railing 8 on the upper end surface of the structural platform 9, the probability of causing the risk of tripping for passers-by is greatly reduced, thereby ensuring the safety of passers-by; at the same time, through the cooperation of the clamping part 3, the elastic part 4, and the through-hole 23, the railing 8 can be quickly locked and positioned in the installation tube 2, and it is also convenient to quickly remove the railing 8 from the installation tube 2; the whole process only requires controlling the upward or downward movement and rotation of the railing 8 to complete the locking or removal of the railing 8. The operation process is simple and convenient, which reduces the workload of the staff and improves the work efficiency of the staff.

[0063] 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 substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A movable railing locking structure, used for locking a railing (8) on a structural platform (9), characterized in that: include: The hook member (1) comprises a first connecting portion (11) extending up and down, and a second connecting portion (12) vertically connected to the lower end of the first connecting portion (11), and the other end of the first connecting portion (11) is vertically connected to the bottom wall of the railing (8); A mounting tube (2) passes through the structural platform (9) in the vertical direction, the mounting tube (2) is at least partially located below the structural platform (9), and the mounting tube (2) has a receiving cavity (21) for the railing (8) to be inserted from top to bottom; a through hole (23) is provided on the bottom wall of the receiving cavity (21) for the second connecting portion (12) to pass through; An elastic member (4) is compressible in the up-down direction, the upper end of the elastic member (4) is connected to the railing (8), and the lower part of the accommodating cavity (21) has a stopper for stopping the lower end of the elastic member (4); A clamping member (3) is arranged on the lower end surface of the mounting tube (2); The railing (8) is inserted into the accommodating cavity (21) and drives the second connecting portion (12) to pass through the through hole (23), so that the lower end of the elastic member (4) abuts against the stopping portion and squeezes the elastic member (4), and the railing (8) is rotated to stop the second connecting portion (12) and the clamping member (3).

2. The movable railing locking structure according to claim 1, characterized in that: The upper end surface of the installation cylinder (2) does not protrude from the upper surface of the structural platform (9).

3. The movable railing locking structure according to claim 2, characterized in that: The installation cylinder (2) further comprises a first lower sealing plate (22) constituting the bottom wall of the accommodating cavity (21), and the through hole (23) passes through the first lower sealing plate (22) from top to bottom; The clamping member (3) comprises two clamping blocks (31) arranged at intervals, the clamping blocks (31) being fixedly connected to the lower end surface of the first lower sealing plate (22), and the interval between the two clamping blocks (31) forming a clamping groove for blocking the second connecting portion (12).

4. The movable railing locking structure according to claim 1, characterized in that: The outer periphery of the handrail (8) is connected with a waterproof cover (83) so that when the handrail (8) is inserted into the installation tube (2), the installation tube (2) is covered; The elastic member (4) is arranged between the inner wall of the accommodating cavity (21) and the railing (8), and the upper end of the elastic member (4) is connected to the lower end surface of the waterproof cover (83).

5. The movable railing locking structure according to claim 4, characterized in that: The stopping portion comprises a stopping ring (24) coaxially connected to the inner wall of the accommodating cavity (21), and the projection of the inner contour of the stopping ring (24) along the axial direction of the installation tube (2) is between the projections of the railing (8) and the elastic member (4) along the axial direction of the installation tube (2); so that when the railing (8) is inserted into the installation tube (2), the lower end of the elastic member (4) abuts against the stopping ring (24).

6. The movable railing locking structure according to claim 1, characterized in that: The movable rail locking structure also includes a sealing member (5), wherein the sealing member (5) includes a large diameter portion (51) and a small diameter portion (52) connected to the lower end of the large diameter portion (51), and the outer diameter of the small diameter portion (52) matches the inner diameter of the accommodating cavity (21).

7. The movable railing locking structure according to claim 6, characterized in that: The movable rail locking structure also includes a sleeve (6) arranged below the structural platform (9), the sleeve (6) being sleeved on the outer periphery of the mounting tube (2), the bottom wall of the sleeve (6) being spaced apart from the bottom wall of the mounting tube (2), and the sleeve (6) and the mounting tube (2) being connected via a flange (7).

8. The movable railing locking structure according to claim 6, characterized in that: The sealing member (5) further comprises a vent pipe (53) axially extending through the sealing member (5), the upper and lower ends of the vent pipe (53) both extending out of the sealing member (5), and one end of the vent pipe (53) extending out of the sealing member (5) is threadedly equipped with a clamping nut (54) abutting against the sealing member (5), so that the vent pipe (53) is clamped and positioned on the sealing member (5); The upper end of the ventilation pipe (53) is detachably connected to a sealing cover (55).

9. The movable railing locking structure according to claim 8, characterized in that: The upper end surface of the large diameter portion (51) is provided with a mounting plate (56), and the mounting plate (56) has a through hole for the ventilation pipe (53) to pass through; the clamping nut (54) located above is pressed against the upper end surface of the mounting plate (56), and a pull ring (57) is rotatably mounted on the mounting plate (56).

10. The movable railing locking structure according to any one of claims 6 to 9, characterized in that: The sealing element (5) is made of water-swellable rubber.

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