Stairway protective fence structure

By designing the stairwell guardrail structure and using fixed frames, railings, movable door components, locking mechanisms, and adjustment mechanisms, the problem of parents needing to supervise their children in real time or move heavy objects to prevent them from getting in the way has been solved. This design achieves rapid installation and protective effects that can be adapted to different widths.

CN224049059UActive Publication Date: 2026-03-27SICHUAN TIANSHENGDA CONSTR ENG CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In existing technologies, parents need to supervise their children in real time or move heavy objects to prevent them from falling from the stairwell, which is inconvenient.

Method used

A stairwell guardrail structure was designed, including a fixed frame, a railing, a movable door assembly, a locking mechanism, an adjustment mechanism, and an extension assembly. The railing can be quickly opened and closed and its width adjusted by rotating a knob, pushing a fixed rod, and adjusting a plate.

Benefits of technology

It enables the rapid installation of child safety railings and adapts to different stairwell widths, reducing the complexity of operations for parents and improving safety and convenience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224049059U_ABST
    Figure CN224049059U_ABST
Patent Text Reader

Abstract

The utility model provides a stairway protective fence structure, which relates to the technical field of stairway protective fences and comprises a fixing frame, a plurality of first handrails are fixedly connected to two ends of the inner side of the fixing frame, and U-shaped fixing plates are fixedly connected to the top of one end of the inner side of the fixing frame and the bottom of one side of one first handrail. A knob is rotated, a U-shaped extension rod moves towards the outer side of an inserting groove, an anti-skid pad extrudes the inner side of a handrail, after fixing is completed, the knob is pressed downwards, the bottom of a hexagonal inserting rod is embedded into a hexagonal movable groove, a gear is fixed and limited, one end of an upper fixing rod is pushed, a positioning rod extrudes a guide inclined face, and the guide inclined face is fixed. The positioning rod is embedded into the clamping groove, the fixing rod and the fixing frame are closed, the adjusting plate is held by hand and pushed outwards, the reset spring shrinks, the movable plate moves rightwards, the fixing rod above is pulled, the positioning rod is separated from the interior of the clamping groove, and the fixing rod and the fixing frame are opened.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to stairway protective fence technical field especially, relates to a stairway protective fence structure. BACKGROUND

[0002] When the child just learns to walk, the parents usually place the infant on the upper floor, and the child walks and plays on the upper floor by himself, at this time, a stairway protective fence is needed to prevent the child from falling from the stairway and to avoid danger.

[0003] However, in the prior art, the parents usually sit at the stairway to watch in real time or place heavy objects to block, the parents cannot be distracted to do other things, and secondly, the heavy objects need to be moved many times when the parents pass through, which is inconvenient. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a stairway protective fence structure, comprising: a fixed frame, a plurality of railings one are fixedly connected to both ends of the inner side of the fixed frame, a U-shaped fixed plate is fixedly connected to the top of one end of the inner side of the fixed frame and the bottom of one side of one of the railings one, an active door assembly is arranged on one side of the two U-shaped fixed plates, a clamping mechanism is arranged on the top of one side of the fixed frame, an adjusting mechanism is arranged on both sides of the top of the fixed frame, and an extension assembly is arranged on both sides of the fixed frame.

[0006] As a preferred embodiment, a butt joint groove is formed in the top of one end of the inner side of the fixed frame, an active groove one is formed in one side of the top of the fixed frame, the butt joint groove and the active groove one are interconnected inside, a hexagonal active groove is formed in both sides of the top of the fixed frame, a plug-in groove is formed in both sides of the fixed frame, and the two hexagonal active grooves are interconnected with the two plug-in grooves inside respectively.

[0007] As a preferred embodiment, the active door assembly comprises two fixed rods, the two fixed rods are rotatably installed in the interiors of the two U-shaped fixed plates through pivots at one end respectively, a plurality of railings two are fixedly connected between the opposite sides of the two fixed rods, an extension plate is fixedly connected to the other end of the fixed rod located above, a positioning rod is fixedly connected to the top of the extension plate, and the extension plate is movably embedded in the interior of the butt joint groove.

[0008] As a preferred implementation, the clamping mechanism includes a movable plate, the surface of the movable plate is movably embedded in the inside of the docking groove and the movable groove one, one end of the movable plate is provided with a clamping groove, the inside of the clamping groove is provided with a guide inclined surface, the other end of the top of the movable plate is fixedly connected with an adjusting plate, the adjusting plate is movably embedded in the inside of the movable groove one, the other end of the movable plate is fixedly connected with a plurality of reset springs, the other end of the plurality of reset springs is fixedly connected to the other side of the inner cavity of the movable groove one, and the positioning rod is movably embedded in the inside of the clamping groove.

[0009] As a preferred implementation, the adjusting mechanism includes a column, the column is movably embedded in the inside of the hexagonal movable groove, the bottom of the column is fixedly connected with a gear, the gear is movably embedded in the inside of the plug-in groove, the top of the column is fixedly connected with a hexagonal plug-in rod, and the other end of the hexagonal plug-in rod is fixedly connected with a knob.

[0010] As a preferred implementation, the surface of the column is attached to the inner wall of the hexagonal movable groove, and the size of the hexagonal plug-in rod is matched with the opening of the hexagonal movable groove.

[0011] As a preferred implementation, the extension assembly includes a U-shaped extension rod, both ends of the U-shaped extension rod are movably embedded in the two ends of the inner cavity of the plug-in groove, one end of the inside of the U-shaped extension rod is fixedly connected with a handrail three, one end of the top of the U-shaped extension rod is movably provided with a movable groove two, a plurality of tooth grooves are formed in one side of the inner cavity of the movable groove two, the gear is in meshing connection with the tooth grooves, and the other side of the U-shaped extension rod is fixedly connected with an antiskid pad.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1. The utility model discloses a rotating knob, and the U-shaped extension rod moves to the outside of the plug-in groove, the antiskid pad extrudes the inside of the handrail, after fixing, the bottom of the hexagonal plug-in rod is embedded in the inside of the hexagonal movable groove, and the gear is fixed and limited.

[0014] 2. The utility model discloses that the one end of the upper fixed rod is pushed, the positioning rod extrudes the guide inclined surface, the positioning rod is embedded in the inside of the clamping groove, the fixed rod and the fixed frame complete closing, the adjusting plate is pushed outwards in hand, the reset spring contracts, the movable plate moves to the right, the upper fixed rod is pulled, the positioning rod is separated from the inside of the clamping groove, and the fixed rod and the fixed frame complete opening. DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic view of the stairway protection fence structure provided by the utility model.

[0016] Figure 2A partial structure schematic view of the stairway opening protective fence structure is provided in the utility model.

[0017] Figure 3 An inside section view of the clamping structure of the stairway opening protective fence structure is provided in the utility model.

[0018] Figure 4 An inside section view of the adjusting mechanism of the stairway opening protective fence structure is provided in the utility model.

[0019] Figure 5 An enlarged view of A of the stairway opening protective fence structure is provided in the utility model.

[0020] Legend:

[0021] 1, fixed frame; 101, butt joint groove; 102, movable groove one; 103, hexagonal movable groove; 104, plug-in groove; 2, railing one; 3, U-shaped fixed plate; 4, movable door assembly; 401, fixed rod; 402, railing two; 403, extension plate; 404, positioning rod; 5, clamping mechanism; 501, movable plate; 502, clamping groove; 503, guide inclined surface; 504, adjusting plate; 505, return spring; 6, adjusting mechanism; 601, column; 602, gear; 603, hexagonal plug-in rod; 604, knob; 7, extension assembly; 701, U-shaped extension rod; 702, railing three; 703, movable groove two; 704, gear slot; 705, non-slip pad. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a stairway opening protective fence structure, comprising: fixed frame 1, the two ends of the inner side of fixed frame 1 are all fixedly connected with multiple railings one 2, the top of one end of the inner side of fixed frame 1 and the bottom of one side of one of railing one 2 are all fixedly connected with U-shaped fixed plate 3, one side of two U-shaped fixed plates 3 is provided with movable door assembly 4, the top of one side of fixed frame 1 is provided with clamping mechanism 5, the top of both sides of fixed frame 1 is provided with adjusting mechanism 6, the both sides of fixed frame 1 are provided with extension assembly 7.

[0024] Specifically, the fixed frame 1 is used as a guardrail main body, the U-shaped fixed plate 3 is used as a mounting fixed movable door assembly 4, the clamping mechanism 5 is used as clamping and fixing the other end of the movable door assembly 4, the adjusting mechanism 6 is used as adjusting the extension assembly 7, and the extension assembly 7 is used as widening the width of the fixed frame 1.

[0025] In one embodiment, the top of one end of the inside of the fixed frame 1 is provided with a butt joint groove 101, one side of the top of the fixed frame 1 is provided with a movable groove 102, the inside of the butt joint groove 101 and the movable groove 102 are communicated, and the top of the fixed frame 1 is provided with a hexagonal movable groove 103 on both sides, and the fixed frame 1 is provided with a plug-in groove 104 on both sides. The two hexagonal movable grooves 103 are respectively communicated with the two plug-in grooves 104 inside.

[0026] Specifically, the butt joint groove 101 and the movable groove 102 are used for mounting the clamping mechanism 5, the hexagonal movable groove 103 is used for mounting the adjusting mechanism 6, and the plug-in groove 104 is used for mounting the extension assembly 7.

[0027] In one embodiment, the movable door assembly 4 includes two fixed rods 401, one end of the two fixed rods 401 is respectively rotatably installed in the inside of the two U-shaped fixed plates 3 through a rotating shaft, a plurality of railings 402 are fixedly connected between the opposite sides of the two fixed rods 401, the other end of the upper fixed rod 401 is fixedly connected with an extension plate 403, the top of the extension plate 403 is fixedly connected with a positioning rod 404, and the extension plate 403 is movably embedded in the inside of the butt joint groove 101.

[0028] Specifically, the two fixed rods 401 are used for mounting and fixing the railings 402, and the extension plate 403 and the positioning rod 404 cooperate with the clamping mechanism 5 to fix the other end of the movable door assembly 4.

[0029] In one embodiment, the clamping mechanism 5 includes an activity plate 501, the surface of the activity plate 501 is movably embedded in the inside of the butt joint groove 101 and the movable groove 102, one end of the activity plate 501 is provided with a clamping groove 502, one end of the inside of the clamping groove 502 is provided with a guide inclined surface 503, the other end of the top of the activity plate 501 is fixedly connected with an adjusting plate 504, the adjusting plate 504 is movably embedded in the inside of the movable groove 102, the other end of the activity plate 501 is fixedly connected with a plurality of reset springs 505, the other end of the plurality of reset springs 505 is fixedly connected with the other side of the inner cavity of the movable groove 102, and the positioning rod 404 is movably embedded in the inside of the clamping groove 502.

[0030] Specifically: push one end of the upper fixed rod 401, the positioning rod 404 extrudes the guide inclined plane 503, the movable plate 501 moves to the right, the return spring 505 contracts, the extension plate 403 is embedded in the inside of the butt joint groove 101, the return spring 505 restores the movable plate 501, the positioning rod 404 is embedded in the inside of the clamping groove 502, the movable door assembly 4 and the fixed frame 1 complete closing, the handheld adjusting plate 504 is pushed outwards, the return spring 505 contracts, the movable plate 501 moves to the right, the upper fixed rod 401 is pulled, the positioning rod 404 is separated from the inside of the clamping groove 502, the extension plate 403 is separated from the inside of the butt joint groove 101, and the movable door assembly 4 and the fixed frame 1 complete opening.

[0031] In one embodiment, the adjusting mechanism 6 comprises a column body 601 movably embedded in the inside of the hexagonal movable groove 103, the bottom of the column body 601 is fixedly connected with a gear 602, the gear 602 is movably embedded in the inside of the plug-in groove 104, the top of the column body 601 is fixedly connected with a hexagonal plug-in rod 603, and the other end of the hexagonal plug-in rod 603 is fixedly connected with a knob 604.

[0032] Specifically: the knob 604 is used for rotating and adjusting the gear 602.

[0033] In one embodiment, the surface of the column body 601 is attached to the inner wall of the hexagonal movable groove 103, and the size of the hexagonal plug-in rod 603 is consistent with the opening of the hexagonal movable groove 103.

[0034] Specifically: the hexagonal movable groove 103 cooperates with the hexagonal plug-in rod 603 to fix and limit the column body 601.

[0035] In one embodiment, the extension assembly 7 comprises a U-shaped extension rod 701, both ends of the U-shaped extension rod 701 are movably embedded in both ends of the plug-in groove 104, one end of the inner side of the U-shaped extension rod 701 is fixedly connected with a railing 702, one end of the top of the U-shaped extension rod 701 is provided with a movable groove two 703, a plurality of tooth grooves 704 are formed in one side of the inner cavity of the movable groove two 703, the gear 602 is in meshing connection with the tooth grooves 704, and the other side of the U-shaped extension rod 701 is fixedly connected with a non-slip pad 705.

[0036] Specifically: by meshing connection of the gear 602 and the tooth grooves 704, the U-shaped extension rod 701 is driven to move left and right, after adjustment, the knob 604 is pressed downwards, the bottom of the hexagonal plug-in rod 603 is embedded in the inside of the hexagonal movable groove 103, and the gear 602 is fixed and limited.

[0037] Working principle: when the guardrail is used to protect the stairway, first, place the guardrail on the inner side of the stairway guardrail, then pull up the knob 604, the bottom of the hexagonal plug-in rod 603 is separated from the inside of the hexagonal movable slot 103, the column 601 is embedded in the inside of the hexagonal movable slot 103, at the same time, the gear 602 moves along the tooth groove 704 to the upper end of one side of the tooth groove 704, rotate the knob 604, the hexagonal plug-in rod 603 and the column 601 drive the gear 602 to rotate forward, through the meshing connection of the gear 602 and the tooth groove 704, the U-shaped extension rod 701 moves to the outside of the plug-in slot 104, the anti-skid pad 705 extrudes the inner side of the guardrail, after fixing, press down the knob 604, the bottom of the hexagonal plug-in rod 603 is inserted into the inside of the hexagonal movable slot 103, the gear 602 moves to the lower end of one side of the tooth groove 704, the bottom of the hexagonal plug-in rod 603 is embedded in the inside of the hexagonal movable slot 103, the gear 602 is fixed and limited;

[0038] Through the arrangement, the width of the guardrail is adjusted, so that the guardrail can be applied to various widths of fences;

[0039] Push one end of the upper fixed rod 401, the positioning rod 404 extrudes the guide inclined surface 503, the movable plate 501 moves to the right, the extension plate 403 is embedded in the inside of the butt joint slot 101, the reset spring 505 restores to drive the movable plate 501, the positioning rod 404 is embedded in the inside of the clamping groove 502, the fixed rod 401 and the fixed frame 1 are closed, hold the adjusting plate 504 and push it outward, the reset spring 505 is contracted, the movable plate 501 moves to the right, pull the upper fixed rod 401, the positioning rod 404 is separated from the inside of the clamping groove 502, the extension plate 403 is separated from the inside of the butt joint slot 101, the fixed rod 401 and the fixed frame 1 are opened;

[0040] Through the arrangement, the fixed rod 401 can be quickly opened and closed.

[0041] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A stairway opening guard structure, characterized by, Include: The fixed frame (1) inside both ends are fixedly connected with a plurality of rail one (2), the top of one end of the fixed frame (1) and the bottom of one side of one of the rail one (2) are fixedly connected with a U-shaped fixed plate (3), one side of two U-shaped fixed plates (3) is provided with a movable door assembly (4), the top of one side of the fixed frame (1) is provided with a clamping mechanism (5), both sides of the top of the fixed frame (1) are provided with an adjusting mechanism (6), both sides of the fixed frame (1) are provided with an extension assembly (7).

2. A stairway opening guardrail structure according to claim 1, characterized in that: The top of one end of the fixed frame (1) is provided with a butt joint groove (101), one side of the top of the fixed frame (1) is provided with a movable groove (102), the inside of the butt joint groove (101) and the movable groove (102) are communicated, both sides of the top of the fixed frame (1) are provided with a hexagonal movable groove (103), both sides of the fixed frame (1) are provided with an insertion groove (104), two hexagonal movable grooves (103) are respectively communicated with two insertion grooves (104) inside.

3. A stairway opening guardrail structure according to claim 2, wherein: The movable door assembly (4) includes two fixed rods (401), one end of two fixed rods (401) is rotatably installed in the inside of two U-shaped fixed plates (3) through a rotating shaft, a plurality of rail two (402) is fixedly connected between the opposite sides of two fixed rods (401), the other end of the fixed rod (401) is fixedly connected with an extension plate (403), the top of the extension plate (403) is fixedly connected with a positioning rod (404), the extension plate (403) is movably embedded in the inside of the butt joint groove (101).

4. A stairway opening guardrail structure according to claim 3, wherein: The clamping mechanism (5) includes a movable plate (501), the surface of the movable plate (501) is movably embedded in the inside of the butt joint groove (101) and the movable groove (102), one end of the movable plate (501) is provided with a clamping groove (502), one end of the inside of the clamping groove (502) is provided with a guide inclined surface (503), the other end of the top of the movable plate (501) is fixedly connected with an adjusting plate (504), the adjusting plate (504) is movably embedded in the inside of the movable groove (102), the other end of the movable plate (501) is fixedly connected with a plurality of reset springs (505), the other end of a plurality of reset springs (505) is fixedly connected to the other side of the inner cavity of the movable groove (102), the positioning rod (404) is movably embedded in the inside of the clamping groove (502).

5. The stairway newel structure according to claim 2, wherein: The adjusting mechanism (6) includes a column body (601), the column body (601) is movably embedded in the inside of the hexagonal movable groove (103), the bottom of the column body (601) is fixedly connected with a gear (602), the gear (602) is movably embedded in the inside of the insertion groove (104), the top of the column body (601) is fixedly connected with a hexagonal insertion rod (603), the other end of the hexagonal insertion rod (603) is fixedly connected with a knob (604).

6. A stairway opening guardrail structure according to claim 5, wherein: The surface of the column (601) is in close fit with the inner wall of the hexagonal movable slot (103), and the size of the hexagonal plug-in rod (603) is in close fit with the opening of the hexagonal movable slot (103).

7. A stairway opening guardrail structure according to claim 5, wherein: The lengthening assembly (7) comprises a U-shaped lengthening rod (701), both ends of the U-shaped lengthening rod (701) are movably embedded in the two ends of the inner cavity of the plug-in slot (104) respectively, one end of the inner side of the U-shaped lengthening rod (701) is fixedly connected with a railing three (702), one end of the top of the U-shaped lengthening rod (701) is provided with a movable slot two (703) penetratingly, a plurality of tooth grooves (704) are arranged on one side of the inner cavity of the movable slot two (703), the gear (602) is meshedly connected with the tooth groove (704), and the other side of the U-shaped lengthening rod (701) is fixedly connected with an antiskid pad (705).