Guardrail door

Abstract

The utility model relates to the technical field of guardrails, in particular to a guardrail door, which is characterized by comprising a handrail, side columns and a bottom column which are rectangular and hollow, the handrail and the bottom column are arranged up and down, and the side columns are arranged between the left side and the right side of the handrail and the bottom column to form a rectangular frame structure. A plurality of connecting transverse pieces which are arranged in parallel at intervals are arranged between the two side columns in the height direction of the side columns, a single-side supporting piece is arranged between the top ends of the side columns and the handrail, the single-side supporting piece is connected with the top ends of the side columns in a locking mode through a first locking mechanism, and the single-side supporting piece is connected with the handrail in a locking mode through a second locking mechanism. The bottom ends of the side edge columns are connected with the bottom edge columns in a locking mode through third locking mechanisms, and notches allowing the third locking mechanisms to enter are formed in the left side and the right side of the bottom face of each bottom edge column. The overall structure is firmer, light in weight and convenient to install, the using amount of connecting pieces is reduced, and the number of overall accessories is small.

Description

Technical Field

[0001] The utility model relates to the technical field of guardrails, in particular to a guardrail door. Background Art

[0002] At present, various metal guardrails formed by connecting steel wire ropes between the columns on both sides are widely used in guardrails of home balconies, home gardens, commercial shops, pedestrian passages, construction equipment protection sites, animal cages, etc. due to their easy installation and good impact resistance. In order to facilitate people to enter and exit the guardrail, an openable guardrail door is usually set on a row of guardrails. However, some existing guardrail doors have a relatively bulky overall structure and have many connecting parts, which is inconvenient to install, and thus needs further improvement. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a guardrail door with a stronger and lighter overall structure, convenient installation, reduced use of connecting parts and fewer overall accessories.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a guardrail door, including a handrail, a side column and a bottom column, all of which are rectangular hollow shapes. The handrail and the bottom column are arranged up and down, and side columns are arranged between the handrail and the left and right sides of the bottom column to enclose a rectangular frame structure, and a plurality of parallel and spaced connecting cross members are arranged between the two side columns along their height direction. A single-sided supporting piece is provided between the top of the side column and the handrail, and the single-sided supporting piece is locked and connected to the top of the side column through a first locking mechanism, and the single-sided supporting piece is locked and connected to the handrail through a second locking mechanism. The bottom end of the side column is locked and connected to the bottom column through a third locking mechanism, and the left and right sides of the bottom surface of the bottom column are provided with slots for allowing the third locking mechanism to enter.

[0005] Furthermore, the first locking mechanism includes multiple first screws, multiple first locking blocks are fixedly provided in the upper end opening of the side column, a first threaded hole is provided in the first locking block, and multiple first countersunk holes are provided on the top surface of the single-sided support plate. The multiple first countersunk holes correspond one-to-one to the multiple first threaded holes, and the first screw passes through the first countersunk holes and is threadedly connected to the first threaded holes.

[0006] Furthermore, the second locking mechanism includes multiple second screws, multiple second threaded holes are provided on the bottom surface of the armrest on the outer side of the side column, and multiple second countersunk holes are provided on the bottom surface of the single-sided support plate. The multiple second countersunk holes correspond one-to-one to the multiple second threaded holes, and the second screws pass through the second countersunk holes and are threadedly connected to the second threaded holes.

[0007] Furthermore, the second locking mechanism also includes a hidden screw, a hidden through hole is provided on the inner side of the side column on the bottom surface of the armrest, a hidden threaded hole corresponding to the through hole is provided on the single-sided support plate, and the hidden screw passes through the hidden through hole and is threadedly connected to the hidden threaded hole.

[0008] Furthermore, the third locking mechanism includes multiple third screws, multiple third locking blocks are fixedly provided in the lower end opening of the side column, a third threaded hole is provided in the third locking block, and multiple third through holes are provided on the inner top surface of the bottom column. The multiple third through holes correspond one by one to the multiple third threaded holes, and the third screws pass through the third through holes and are threadedly connected to the third threaded holes.

[0009] Furthermore, sealing plates are fixedly provided at the openings at both left and right ends of the bottom side column.

[0010] Furthermore, plugs are detachably embedded in the openings at both ends of the handrail.

[0011] Furthermore, the connecting cross piece is a steel wire rope, and a plurality of mounting holes penetrating the left and right end faces are provided on the side columns along the height direction thereof. Tensioners are provided at both ends of the connecting cross piece, which are installed in the mounting holes and used to connect and tighten the connecting cross piece.

[0012] Furthermore, it also includes automatic rebound hinges and automatic locking bolts, wherein a plurality of automatic rebound hinges are fixedly installed between one side column and an adjacent guardrail, a locking rod is fixedly installed on the other side column, and an automatic locking bolt is fixedly installed on the guardrail adjacent to the other side column, and the automatic locking bolt is used to cooperate with the locking rod and can realize automatic locking of the locking rod.

[0013] From the above description, it can be seen that the guardrail door provided by the utility model has the following beneficial effects: by adopting the handrail, side column and bottom column in a rectangular hollow shape, and cooperating with the use of the connecting cross piece, it is beneficial to greatly reduce the overall weight of the guardrail door, and the overall weight is lighter. By setting a single-sided support piece and cooperating with the use of the first locking mechanism, the single-sided support piece and the side column can be stably connected. The single-sided support piece is first fixedly installed on the top of the side column, and the second locking mechanism is used to stably connect the single-sided support piece to the handrail. The single-sided support piece is then fixedly installed on the bottom surface of the handrail, thereby facilitating a stable connection between the handrail and the side column, and providing a connection position while ensuring the integrity of the handrail. By providing a notch on the bottom surface of the bottom column, space for installing a third locking mechanism can be provided without affecting the overall appearance of the bottom column. Thus, it is convenient to directly make a stable connection between the bottom column and the side column through the third locking mechanism, thereby making the overall structure of the guardrail door more solid and the installation more convenient, and reducing the use of connectors and the overall number of accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a three-dimensional structural schematic diagram of a guardrail door.

[0015] Figure 2 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0016] Figure 3 This is a connection diagram of the handrail, single-sided support plate, and side column.

[0017] Figure 4 This is a schematic diagram of the connection between the side columns and the bottom columns.

[0018] Figure 5 This is a schematic diagram of the partial three-dimensional structure of the handrail.

[0019] Figure 6 This is a schematic diagram of the partial three-dimensional structure at the top of the side column.

[0020] Figure 7 This is a schematic diagram of the partial three-dimensional structure at the bottom of the side column.

[0021] Figure 8 It is a schematic diagram of the partial three-dimensional structure of the bottom side column.

[0022] Fig. 9 It is a schematic diagram of the three-dimensional structure of a single-sided support.

[0023] In the figure: 1-handrail; 11-second threaded hole; 12-hidden through hole; 13-plug; 2-side column; 21-first locking block; 211-first threaded hole; 22-third locking block; 221-third threaded hole; 23-mounting hole; 3-bottom column; 31-slot; 32-third through hole; 33-covering plate; 4-connecting cross piece; 5-single-sided supporting piece; 51-first countersunk hole; 52-second countersunk hole; 53-hidden threaded hole; 611-first screw; 621-second screw; 622-hidden screw; 631-third screw; 7-tensioner; 8-automatic rebound hinge; 91-automatic locking bolt; 92-locking rod. DETAILED DESCRIPTION

[0024] The present invention is further described below through specific implementation methods.

[0025] like Figures 1 to 9As shown, a guardrail door described in the utility model comprises a handrail 1, a side column 2 and a bottom column 3, all of which are rectangular hollow shapes. The handrail 1 and the bottom column 3 are arranged up and down, and the side columns 2 are arranged between the handrail 1 and the left and right sides of the bottom column 3 to enclose a rectangular frame structure, and a plurality of parallel and spaced connecting cross members 4 are arranged between the two side columns 2 along their height direction. A single-sided support piece 5 is provided between the top of the side column 2 and the handrail 1, and the single-sided support piece 5 is locked and connected to the top of the side column 2 through a first locking mechanism, and the single-sided support piece 5 is locked and connected to the handrail 1 through a second locking mechanism. The bottom end of the side column 2 is locked and connected to the bottom column 3 through a third locking mechanism, and the left and right sides of the bottom surface of the bottom column 3 are provided with notches 31 for the third locking mechanism to enter.

[0026] The handrail 1 is used to support the upper part of the guardrail door and serves as a graspable component, and the bottom side column 3 supports the lower part of the guardrail door.

[0027] By adopting the handrail 1, the side column 2 and the bottom column 3 in a rectangular hollow shape, and cooperating with the use of the connecting cross piece 4, it is beneficial to greatly reduce the overall weight of the guardrail door, and the overall weight is lighter. By setting the single-sided support piece 5 and cooperating with the use of the first locking mechanism, the single-sided support piece 5 and the side column 2 can be stably connected, so that the single-sided support piece 5 is first fixedly installed on the top of the side column 2, and the second locking mechanism is used to stably connect the single-sided support piece 5 and the handrail 1, so that the single-sided support piece 5 can be fixedly installed on the top of the side column 2. The bottom surface of the handrail 1 facilitates the stable connection between the handrail 1 and the side column 2, and provides a connection position while ensuring the integrity of the handrail 1. By providing the notch 31 on the bottom surface of the bottom column 3, space for installing the third locking mechanism can be provided without affecting the overall appearance of the bottom column 3. As a result, it is convenient to directly connect the bottom column 3 and the side column 2 stably through the third locking mechanism, thereby making the overall structure of the guardrail door more solid and the installation more convenient, and reducing the use of connecting parts, with fewer overall accessories.

[0028] In addition, the handrail 1 is easy to replace, and the handrail 1 of different styles or materials can be selected according to preference, and it is consistent with the style of the guardrail.

[0029] The first locking mechanism includes a plurality of first screws 611, a plurality of first locking blocks 21 are fixedly provided in the upper end opening of the side column 2, a first threaded hole 211 is provided in the first locking block 21, a plurality of first countersunk holes 51 are provided on the top surface of the single-sided support plate 5, and the plurality of first countersunk holes 51 correspond one-to-one to the plurality of first threaded holes 211, the first screw 611 passes through the first countersunk holes 51 and is threadedly connected with the first threaded hole 211. Preferably, the number of the first locking blocks 21 is 4 and they are respectively provided at the four corners of the upper end opening of the side column 2. Correspondingly, the number of the first countersunk holes 51 and the first screws 611 is also 4, so as to facilitate the stable connection between the side column 2 and the single-sided support plate 5. In addition, the first screw 611 can be a countersunk screw.

[0030] The second locking mechanism includes a plurality of second screws 621, a plurality of second threaded holes 11 are provided on the bottom surface of the handrail 1 on the outer side of the side column 2, and a plurality of second countersunk holes 52 are provided on the bottom surface of the single-sided support plate 5. The plurality of second countersunk holes 52 correspond one to one with the plurality of second threaded holes 11. The second screw 621 passes through the second countersunk holes 52 and is threadedly connected with the second threaded holes 11 to facilitate a stable connection between the handrail 1 and the single-sided support plate 5. Preferably, the number of the second screw 621, the second threaded hole 11 and the second countersunk hole 52 are all 2. In addition, the second screw 621 can be a countersunk screw.

[0031] In addition, the second locking mechanism also includes a hidden screw 622, a hidden through hole 12 is provided on the bottom surface of the handrail 1 on the inner side of the side column 2, and a hidden threaded hole 53 corresponding to the through hole is provided on the single-sided support plate 5. The hidden screw 622 passes through the hidden through hole 12 and is threadedly connected to the hidden threaded hole 53, thereby further improving the overall rigidity of the guardrail door and preventing the handrail 1 from deforming and tilting after being subjected to tension.

[0032] The third locking mechanism includes multiple third screws 631, multiple third locking blocks 22 are fixedly provided in the lower end opening of the side column 2, and a third threaded hole 221 is provided in the third locking block 22, and a plurality of third through holes 32 are provided on the inner top surface of the bottom column 3, and the multiple third through holes 32 correspond to the multiple third threaded holes 221 one by one, and the third screws 631 pass through the third through holes 32 and are threadedly connected with the third threaded holes 221. Preferably, the number of the third locking blocks 22 is 4 and they are respectively arranged at the four corners of the lower end opening of the side column 2. Correspondingly, the number of the third through holes 32 and the third screws 631 is also 4. The notch 31 on the bottom surface of the bottom column 3 can provide space for installing the third screws 631, so as to facilitate a stable connection between the side column 2 and the bottom column 3.

[0033] In addition, the special opening design on the single-sided support plate 5 can be used with multiple types of side pillars 2.

[0034] The left and right openings of the bottom side column 3 are fixed with sealing plates 33, and correspondingly, the sealing plates 33 and the bottom side column 3 are welded and fixed, so as to well seal the left and right openings of the bottom side column 3. The left and right openings of the armrest 1 are detachably embedded with plugs 13, thereby playing a good sealing role for the left and right openings of the armrest 1. In addition, the connection part between the plug 13 and the armrest 1 avoids the position of the hidden screw 622.

[0035] Preferably, the handrail 1, the side column 2 and the bottom column 3 are all made of aluminum alloy, stainless steel or other lightweight materials, so that the handrail 1, the side column 2 and the bottom column 3 are lighter as a whole, so as to further reduce the overall weight of the guardrail door and reduce the risk of sagging.

[0036] In addition, in the present embodiment, the connecting cross member 4 is a steel wire rope, and the side column 2 is provided with a plurality of mounting holes 23 penetrating the left and right end faces thereof along its height direction, and both ends of the connecting cross member 4 are provided with tensioners 7, and the tensioners 7 are installed in the mounting holes 23 and used to connect and tighten the connecting cross member 4, so as to tension the connecting cross member 4 well, and further make the rectangular frame structure composed of the handrail 1, the side column 2 and the bottom column 3 not easy to deform and sag. Preferably, the side column 2 is provided with There are 6-15 mounting holes 23, and the specific number of the mounting holes 23 can be set according to the actual height of the side column 2. Correspondingly, the number of the connecting cross members 4 is also 6-15. In addition, the tensioner can adopt the structure in the prior art, such as a fixed wire rope tensioner, an adjustable wire rope tensioner and a guardrail with the authorization publication number CN216715118U, so no further details are given here. In addition, in other embodiments, the connecting cross member 4 can also be a hollow aluminum alloy rod, a stainless steel hollow rod or a cable of other materials.

[0037] The guardrail door also includes an automatic rebound hinge 8 and an automatic locking bolt 91, wherein a plurality of the automatic rebound hinges 8 are fixedly installed between one of the side posts 2 and the adjacent guardrail, a locking rod 92 is fixedly installed on another side post 2, and the automatic locking bolt 91 is fixedly installed on the guardrail adjacent to the other side post 2, the automatic locking bolt 91 is used to cooperate with the locking rod 92 and realize the automatic locking of the locking rod 92, and the locking rod 92 can be locked on the automatic locking bolt 91 through the cooperation of the automatic rebound hinge 8 and the automatic locking bolt 91. 1, thereby realizing automatic closing of the guardrail door, no need to manually close the door each time entering or exiting, which is more convenient to use. Preferably, the number of the automatic rebound hinges 8 is two. In addition, the automatic rebound hinge 8 can adopt an existing sold product, and the number of rotation circles of its inner spring can be adjusted by its top adjustment device, thereby adjusting the rebound force of the automatic rebound hinge 8. The automatic locking bolt 91 can also adopt the structure in the prior art, such as a lock hook with the authorization publication number of TWM545196U, which adopts a mechanical structure for locking, is safe and reliable, and has a long service life, so it will not be described in detail here.

[0038] The method for using the guardrail door described in the utility model is as follows:

[0039] First, the single-side support plate 5 is fastened to the top of the side column 2 by means of the first screw 611;

[0040] Then, the two side pillars 2 are respectively fastened to the left and right ends of the top surface of the bottom pillar 3 by means of third screws 631;

[0041] The handrail 1 is fastened to the single-side support plate 5 by means of the second screw 621 and the hidden screw 622;

[0042] Install two plugs 13 at the left and right openings of the handrail 1 respectively;

[0043] The two ends of the plurality of connecting cross members 4 are fixedly mounted in the mounting holes 23 of the side pillars 2 on the corresponding side through the corresponding tensioners 7, and tightened;

[0044] One of the side posts 2 is mounted to the adjacent guardrail via two automatic rebound hinges 8 , the locking rod 92 is fixedly mounted on the other side post 2 , and the automatic locking bolt 91 is fixedly mounted on the guardrail adjacent to the other side post 2 .

[0045] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made and that such a development effort may be complex and time-consuming, but will be a routine task of design, manufacturing, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0046] The above are only some specific implementation methods of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A guardrail door, characterized in that: It includes handrails, side columns and bottom columns, all of which are rectangular hollow shapes. The handrails and the bottom columns are arranged up and down. The side columns are arranged between the handrails and the left and right sides of the bottom columns to form a rectangular frame structure. A plurality of parallel and spaced connecting cross members are arranged between the two side columns along their height direction. A single-sided supporting piece is arranged between the top of the side column and the handrail. The single-sided supporting piece is locked and connected to the top of the side column by a first locking mechanism, and the single-sided supporting piece is locked and connected to the handrail by a second locking mechanism. The bottom end of the side column is locked and connected to the bottom column by a third locking mechanism, and the left and right sides of the bottom surface of the bottom column are provided with slots for allowing the third locking mechanism to enter.

2. A guardrail door according to claim 1, characterized in that: The first locking mechanism includes a plurality of first screws, a plurality of first locking blocks are fixedly provided in the upper end opening of the side column, a first threaded hole is provided in the first locking block, a plurality of first countersunk holes are provided on the top surface of the single-sided support plate, the plurality of first countersunk holes correspond one-to-one to the plurality of first threaded holes, and the first screw passes through the first countersunk hole and is threadedly connected to the first threaded hole.

3. The guardrail door according to claim 1, characterized in that: The second locking mechanism includes a plurality of second screws, a plurality of second threaded holes are provided on the bottom surface of the armrest on the outer side of the side column, a plurality of second countersunk holes are provided on the bottom surface of the single-sided support plate, the plurality of second countersunk holes correspond one-to-one to the plurality of second threaded holes, and the second screws pass through the second countersunk holes and are threadedly connected to the second threaded holes.

4. A guardrail door according to claim 3, characterized in that: The second locking mechanism also includes a hidden screw. A hidden through hole is provided on the bottom surface of the armrest on the inner side of the side column. A hidden threaded hole corresponding to the through hole is provided on the single-sided support plate. The hidden screw passes through the hidden through hole and is threadedly connected to the hidden threaded hole.

5. The guardrail door according to claim 1, characterized in that: The third locking mechanism includes multiple third screws, multiple third locking blocks are fixedly provided in the lower end opening of the side column, a third threaded hole is provided in the third locking block, and multiple third through holes are provided on the inner top surface of the bottom column. The multiple third through holes correspond one-to-one to the multiple third threaded holes, and the third screws pass through the third through holes and are threadedly connected to the third threaded holes.

6. The guardrail door according to claim 1, characterized in that: Closing plates are fixedly provided at the openings at both left and right ends of the bottom side column.

7. The guardrail door according to claim 1, characterized in that: The openings at the left and right ends of the handrail are detachably embedded with plugs.

8. The guardrail door according to claim 1, characterized in that: The connecting cross piece is a steel wire rope, and a plurality of mounting holes penetrating the left and right end faces are provided on the side columns along their height direction. Both ends of the connecting cross piece are provided with tensioners, which are installed in the mounting holes and are used to connect and tighten the connecting cross piece.

9. The guardrail door according to claim 1, characterized in that: It also includes automatic rebound hinges and automatic locking bolts, wherein a plurality of the automatic rebound hinges are fixedly installed between one of the side posts and an adjacent guardrail, a locking rod is fixedly installed on another side post, and the automatic locking bolt is fixedly installed on the guardrail adjacent to the other side post, and the automatic locking bolt is used to cooperate with the locking rod and can realize automatic locking of the locking rod.

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