Height-adjustable safety protective fence

Abstract

The height-adjustable safety protective fence comprises an upper support and a lower support, a lower guide rail is arranged on the lower support, a plurality of protective fences are arranged in the guide rail in a sliding mode, connecting rods are arranged on the protective fences in a rotating mode, the adjacent protective fences are connected through the protective fences, a main supporting column is formed on the lower support, and the main supporting column is arranged on the lower support. A plurality of locking grooves penetrating through the main supporting column are vertically arrayed in the main supporting column; an upper guide rail is arranged on the upper support, a plurality of telescopic columns are arranged in the upper guide rail in a sliding mode, the telescopic columns correspond to the protective fences one to one and are inserted into the protective fences, inserting columns are formed on the upper support, the inserting columns are inserted into the main supporting columns, and mounting holes are vertically formed in the inserting columns. An operating rod slides in the mounting hole, a handle is mounted at one end of the operating rod, a locking block is mounted at the other end of the operating rod, and the locking block is adjusted to be placed into or separated from the locking groove by rotating the handle.

Description

Technical Field

[0001] This application relates to the field of guardrail technology, and in particular to an adjustable-height safety guardrail. Background Technology

[0002] In daily life and industrial production, safety railings, as an important safety facility, are widely used in various platforms, staircases, and edge areas where fall accidents are prone to occur, to prevent people or objects from accidentally falling and ensure the safety of people and property. Traditional safety railings are mostly of a fixed design, with fixed height and length, and cannot be adjusted according to actual needs, which to some extent limits their scope of use and flexibility.

[0003] The adjustable height safety guardrail disclosed in announcement number CN213683506U uses a motor to drive a first gear to rotate, which in turn drives a second gear and a threaded rod to rotate, causing the first and second connecting rods to move away from or closer to each other, thereby raising or lowering the guardrail. However, it has the problems of a relatively complex structure, frequent maintenance of components, and high production and use costs. In addition, it has a large volume and occupies a lot of space when transported and stored.

[0004] Therefore, this application aims to solve the above problems.

[0005] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0006] Based on this, this application provides an adjustable-height safety guardrail to solve one of the aforementioned technical problems.

[0007] The technical solution adopted by this application to solve its technical problem is: an adjustable-height safety guardrail, comprising: an upper support and a lower support, wherein a lower guide rail is provided on the lower support, a plurality of guardrails slide within the guide rail, a connecting rod is rotatably provided on the guardrails, and adjacent guardrails are connected by the guardrails; a main support column is formed on the lower support, and a plurality of locking grooves penetrating the main support column are vertically arrayed on the main support column; an upper guide rail is provided on the upper support, and a plurality of telescopic columns slide within the upper guide rail, the telescopic columns being connected to the guardrails... The guardrails are matched one-to-one and inserted into the guardrail. The upper bracket has a plug-in post, which is inserted into the main support post. The plug-in post has a vertical mounting hole, and an operating rod slides in the mounting hole. One end of the operating rod is equipped with a handle, and the other end is equipped with a locking block. By rotating the handle, the locking block is adjusted to be inserted into or disengaged from the locking slot, thereby locking or unlocking the plug-in post. The upper and lower brackets are detachable, and the guardrails or telescopic rods can be folded and stored. Multiple safety guardrails can be quickly spliced ​​and assembled.

[0008] In some embodiments, the guardrail is brought together for storage, and the connecting rod can only rotate within a limited range. Under the action of the connecting rod, pulling the guardrail can make it unfold evenly.

[0009] In some embodiments, a T-shaped receiving groove is formed on one side of the lower bracket, and a connecting block matching the receiving groove is formed on the other side. The height of the connecting block is greater than the depth of the receiving groove, and adjacent lower brackets are assembled by the cooperation of the connecting block and the receiving groove.

[0010] In some embodiments, the upper bracket has a plug hole on one side and a locking pin that matches the plug hole on the other side. Adjacent upper brackets are assembled by the cooperation of the plug hole and the locking pin.

[0011] In some embodiments, a locking element is rotatably mounted on the guardrail, and the locking element has a plurality of limiting grooves, which are used to lock the position of the locking block.

[0012] The beneficial effects of this application are as follows: By inserting the plug-in column into the main support column and the telescopic column into the guardrail, the plug-in column and the telescopic column can be raised and lowered synchronously on the upper support. At the same time, the locking block can be adjusted to enter or exit the locking groove by rotating the operating lever to lock or unlock the plug-in column and the upper support. When locked, the locking block is placed into the limiting groove by rotating the locking component to keep the locking block locked. The structure is simple, easy to operate, and has low production cost. In addition, the upper and lower supports can be disassembled and assembled with each other, and the guardrail and telescopic column can be slidably stored together, which greatly reduces the space occupied during storage and transportation. Furthermore, multiple safety guardrails can be combined to extend the length of the safety guardrail, meeting diverse usage needs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional schematic diagram of this application.

[0015] Figure 2 This is a schematic diagram illustrating the height adjustment of the safety guardrail in this application.

[0016] Figure 3 This is a schematic diagram of the safety guardrail assembly in this application.

[0017] Figure 4 This is a schematic diagram of the lower support and components of this application.

[0018] Figure 5 This is a schematic diagram of the upper support and components of this application.

[0019] Figure 6 This is a schematic diagram of the lower support storage in this application.

[0020] Figure 7 This is a schematic diagram of the upper support storage in this application.

[0021] Figure 8 This is a schematic diagram of the use of the latch in this application.

[0022] Explanation of reference numerals: 1. Upper bracket, 101. Insertion post, 2. Lower bracket, 201. Main support post, 3. Upper guide rail, 4. Lower guide rail, 5. Guardrail, 6. Connecting rod, 7. Telescopic post, 8. Locking groove, 9. Operating lever, 10. Handle, 11. Locking block, 12. Receiving groove, 13. Connecting block, 14. Insertion hole, 15. Locking pin, 16. Locking component, 17. Limiting groove, 18. Pin. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0024] In the embodiments of this application, please refer to Figure 1-8 As shown, this height-adjustable safety railing mainly includes: an upper support 1 and a lower support 2. The lower support 2 has a lower guide rail 4, within which several guardrails 5 slide. Each guardrail 5 has a rotatable connecting rod 6, and adjacent guardrails 5 are connected by the guardrails 5. A main support column 201 is formed on the lower support 2, and several locking slots 8 are vertically arranged on the main support column 201. The upper support 1 has an upper guide rail 3, within which several telescopic columns 7 slide. Each telescopic column 7 corresponds one-to-one with a guardrail 5 and is inserted into it. Inside the guardrail 5, an insertion post 101 is formed on the upper support 1. The insertion post 101 is inserted into the main support post 201. The insertion post 101 has a vertical mounting hole. An operating rod 9 slides in the mounting hole. A handle 10 is installed at one end of the operating rod 9, and a locking block 11 is installed at the other end. By rotating the handle 10, the locking block 11 is adjusted to be inserted into or disengaged from the locking groove 8, thereby locking or unlocking the insertion post 101. The upper support 1 and the lower support 2 are detachable, and the guardrail 5 or telescopic rod can be folded and stored. Multiple safety guardrails 5 can be quickly spliced ​​and assembled.

[0025] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0026] like Figure 6As shown, the guardrail 5 is brought together to achieve storage. The connecting rod 6 can only rotate within a limited range. Under the action of the connecting rod 6, pulling the guardrail 5 can make it unfold evenly. Since the connecting rod 6 can only rotate within a small range, after pulling the outermost guardrail 5, it drives the outermost connecting rod 6 to rotate to the maximum rotatable position. Continuing to pull the outermost guardrail 5, the outermost connecting rod 6 drives the adjacent guardrail 5 and connecting rod 6 to gradually unfold completely. The same principle applies to storing the guardrail 5.

[0027] like Figure 1-3 As shown, the lower support 2 has a T-shaped receiving groove 12 on one side and a connecting block 13 matching the receiving groove 12 on the other side. The height of the connecting block 13 is greater than the depth of the receiving groove 12. Adjacent lower supports 2 are assembled by the cooperation of the connecting block 13 and the receiving groove 12. The upper support 1 has a plug hole 14 on one side and a locking pin 15 matching the plug hole 14 on the other side. Adjacent upper supports 1 are assembled by the cooperation of the plug hole 14 and the locking pin 15. After the two adjacent upper supports 1 are assembled and spliced, their upper surfaces remain flush. When splicing the two safety guardrails 5, the adjacent upper supports 1 and the adjacent lower supports 2 are staggered vertically. At the same time, the locking pin 15 is inserted into the plug hole 14 and the connecting block 13 is inserted into the receiving groove 12 to complete the splicing and extension of the safety guardrail 5. In addition, the width of the lower support 2 is greater than that of the upper support 1, so the safety guardrail 5 can be stably supported.

[0028] like Figure 4 As shown, a locking element 16 is rotatably mounted on the guardrail 5. The locking element 16 has several limiting grooves 17. The limiting grooves 17 are used to lock the position of the locking block 11. The size of the limiting grooves 17 is slightly smaller than that of the locking grooves 8 to ensure that the locking block 11 can be fixed after the locking element 16 is rotated and enters the limiting grooves 17. In addition, the height of the limiting grooves 17 is slightly greater than the height of the locking block 11. The opening position of the limiting grooves 17 is slightly higher than that of the corresponding locking grooves 8. When the locking element 16 is limited, the locking block 11 needs to be slightly raised, then the locking element 16 is closed, and then the locking block 11 is released. The locking block 11 maintains close contact with the groove wall of the limiting groove 17, thus completing the limitation of the locking block 11.

[0029] Preferably, since the guardrail 5 remains movable after unfolding, it can be locked by a locking mechanism provided on the lower support 2 after unfolding. As one embodiment, for example... Figure 8 As shown, the position of the outermost guardrail 5 is locked by the pin 18 that passes through the lower bracket 2, which plays a locking and limiting role and can keep the guardrail 5 unfolded. The pin 18 can be freely slidable and disassembled.

[0030] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A height-adjustable safety railing, comprising an upper support and a lower support, characterized in that, The lower support is provided with a lower guide rail, and several guardrails slide in the guide rail. The guardrails are connected by a connecting rod. Adjacent guardrails are connected by the guardrails. A main support column is formed on the lower support, and several locking slots that penetrate the main support column are arranged vertically on the main support column. The upper support is provided with an upper guide rail, and a plurality of telescopic columns slide within the upper guide rail. Each telescopic column corresponds to a guardrail and is inserted into the guardrail. An insertion column is formed on the upper support and is inserted into the main support column. An installation hole is vertically provided on the insertion column, and an operating rod slides within the installation hole. A handle is installed at one end of the operating rod, and a locking block is installed at the other end. By rotating the handle, the locking block is adjusted to be inserted into or disengaged from the locking slot, thereby locking or unlocking the insertion column. The upper and lower supports are detachable, and the guardrail or telescopic rod is foldable for storage. Multiple safety barriers can be quickly assembled and connected.

2. The height-adjustable safety railing according to claim 1, characterized in that, The guardrail is brought together for storage, and the connecting rod can only rotate within a limited range. Under the action of the connecting rod, pulling the guardrail can make it unfold evenly.

3. The height-adjustable safety railing according to claim 1, characterized in that, The lower support has a T-shaped receiving groove on one side and a connecting block that matches the receiving groove on the other side. The height of the connecting block is greater than the depth of the receiving groove. Adjacent lower supports are assembled by the cooperation of the connecting block and the receiving groove.

4. The height-adjustable safety railing according to claim 1, characterized in that, The upper bracket has a plug hole on one side and a locking pin that matches the plug hole on the other side. Adjacent upper brackets are assembled by the cooperation of the plug hole and the locking pin.

5. The height-adjustable safety railing according to claim 1, characterized in that, The guardrail has a rotating locking component, which has several limiting grooves for locking the position of the locking block.

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