Telescopic and angle-adjustable stair protective barrier

Abstract

The utility model provides a telescopic and angle-adjustable stair protective handrail, belongs to the technical field of stair protective handrails, and solves the problem that the existing stair protective handrail is inconvenient to transport due to large occupied space. The device comprises two vertical plates fixedly installed on a stair, sliding grooves are vertically formed in the opposite faces of the two vertical plates, sliding seats fixed after moving are arranged in the sliding grooves in a sliding mode, and a telescopic rod is hinged between the two sliding seats. The telescopic rod can stretch out and draw back to adjust the length of the protective barrier, and the telescopic rod can deflect through the sliding seat to adjust the angle, so that the protective barrier can adapt to stairs under different conditions for use; when the protective barrier is folded and placed, the telescopic rods can be placed parallel to the vertical plates by adjusting the positions of the sliding seats, the two vertical plates are placed in parallel on the horizontal plane, the space occupied by the protective barrier is greatly reduced, and transportation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of staircase protective railings, and particularly relates to a telescopic and angle-adjustable staircase protective railing. Background Art

[0002] The staircase protective railing is an enclosing member arranged at the edge of the staircase flight and the platform, having a certain rigidity and safety. The staircase protective railing is widely used in places such as homes, construction sites, and industries.

[0003] When the staircase protective railing is used at a construction site, it needs to be reused. Therefore, after the project is completed, the staircase protective railing needs to be disassembled and transported to the next construction site. The existing staircase protective railings occupy a large space and are not conducive to transportation. For example, the patent with the publication number CN215564656U discloses a tool-type staircase protective railing for construction projects, which includes symmetrical vertical columns 1 and vertical columns 2. Threaded rods 1 that are vertical and thread through the vertical columns 1 and 2 are threadedly connected to both the vertical columns 1 and the vertical columns 2. By setting the symmetrical vertical columns 1 and vertical columns 2, during use, rotate the threaded rod 1 to adjust the distance between the vertical columns 1 and 2 and the staircase to a reasonable position, adjust the length of the protective telescopic rod to adapt to the staircase to protect personnel, and use the clamping mechanism to clamp the device to the edge of the staircase. When the staircase is relatively long, use the clamping parts to clamp multiple such devices together to form a whole to adapt to the length of the staircase. In summary, the designed tool-type staircase protective railing for construction projects has a relatively small protective telescopic rod, is convenient to carry, saves effort, reduces the gap between the device and the staircase, and reduces potential safety hazards. When this protective railing is folded and placed, the vertical columns 1 and the vertical columns 2 need to be placed parallel to the horizontal plane or offset up and down. When the vertical columns 1 and the vertical columns 2 are placed parallel to the horizontal plane, due to the obstruction of the protective telescopic rod, the width of the entire protective railing is relatively wide and will occupy a large space; when the vertical columns 1 and the vertical columns 2 are offset up and down, although the width can be greatly reduced, the height of the entire protective railing becomes higher and it will also occupy a large space, so it is not conducive to transportation. Summary of the Utility Model

[0004] Aiming at the above problems, the purpose of the present utility model is to provide a telescopic and angle-adjustable staircase protective railing. The telescopic rod can be telescoped to adjust the length of the protective railing, and the telescopic rod can be deflected and adjusted in angle through the sliding seat, so that the protective railing can be adapted to staircases in different situations for use; when folded and placed, by adjusting the position of the sliding seat, the telescopic rod can be placed parallel to the vertical plate, and the two vertical plates are placed parallel to each other on the horizontal plane, greatly reducing the space occupied by the protective railing and facilitating transportation.

[0005] The technical solution adopted by the present utility model is as follows:

[0006] A telescopic and angle-adjustable staircase guardrail, comprising two vertical plates fixedly installed on the staircase. Vertical sliding grooves are provided on the opposite faces of the two vertical plates. A sliding seat that is fixed after movement is slidably arranged in the sliding grooves. An expansion rod is hinged between the two sliding seats.

[0007] Preferably, the sliding seat includes a slider slidably arranged in the sliding groove. An articulated seat and a connecting plate connected to the articulated seat are provided on the slider. A limiting screw rod that threadedly penetrates the connecting plate and the slider and abuts against the sliding groove is provided on the connecting plate.

[0008] Preferably, the connecting plate on one of the vertical plates is arranged below the articulated seat, and the connecting plate on the other vertical plate is arranged above the articulated seat.

[0009] Preferably, the expansion rod includes a sleeve and a movable rod movably arranged in the sleeve. A fixing knob that threadedly penetrates the sleeve and abuts against the movable rod is provided on the sleeve.

[0010] Preferably, the bottom of the vertical plate is connected with a mounting plate. A fixing screw rod that vertically penetrates the mounting plate and is connected to the staircase is provided on the mounting plate.

[0011] Preferably, the sliding groove communicates with the upper end face of the vertical plate.

[0012] Preferably, at least two sliding grooves are provided on each of the two vertical plates.

[0013] Preferably, scale lines are provided on the vertical plate.

[0014] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0015] The expansion rod can be telescoped to adjust the length of the guardrail, and the expansion rod can be deflected and adjusted in angle through the sliding seat, so that the guardrail can be adapted to staircases in different situations for use; when folded and placed, by adjusting the position of the sliding seat, the expansion rod can be placed parallel to the vertical plate, and the two vertical plates are placed parallel to each other on the horizontal plane, greatly reducing the space occupied by the guardrail and facilitating transportation. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic diagram of the use state provided by the embodiment of the present utility model;

[0018] Figure 2 Schematic side view structure diagram of the vertical plate provided by an embodiment of the present utility model;

[0019] Figure 3 Schematic front view sectional structure diagram of the vertical plate provided by an embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of the folded state provided by an embodiment of the present utility model.

[0021] Description of the drawings: 1 - staircase; 2 - vertical plate; 3 - mounting plate; 4 - fixing screw; 5 - sliding seat; 501 - hinge seat; 502 - limit screw; 503 - connecting plate; 504 - slider; 6 - telescopic rod; 601 - sleeve; 602 - fixing knob; 603 - movable rod; 7 - chute; 8 - scale line. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0024] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this application is usually placed. It is only for the convenience of describing the present utility model 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 of the present utility model.

[0025] The following will be combined with Figures 1 - 4 to make a detailed description of the present utility model.

[0026] Embodiment

[0027] A telescopic and angle-adjustable staircase guardrail, comprising two vertical plates 2 fixedly installed on the staircase 1. Vertical sliding grooves 7 are provided on the opposite surfaces of the two vertical plates 2. A sliding seat 5 that is fixed after movement is slidably arranged in the sliding grooves 7. An expansion rod 6 is hinged between the two sliding seats 5.

[0028] The expansion rod 6 can be telescoped to adjust the length of the guardrail, and the expansion rod 6 can be deflected to adjust the angle through the sliding seat 5, so that the guardrail can be used to adapt to staircases in different situations; as Figure 4 shown, when folded and placed, by adjusting the position of the sliding seat 5, the expansion rod 6 can be placed parallel to the vertical plate 2, and the two vertical plates 2 are placed parallel on the horizontal plane, greatly reducing the space occupied by the guardrail.

[0029] The expansion rod 6 can be set as a multi-stage expansion rod according to the usage requirements to adapt to longer staircases, and at the same time facilitate the folding and placement of the expansion rod 6.

[0030] The sliding seat 5 includes a slider 504 slidably arranged in the sliding groove 7. An articulated seat 501 and a connecting plate 503 connected to the articulated seat 501 are provided on the slider 504. A limit screw 502 that threadedly penetrates the connecting plate 503 and the slider 504 and abuts against the sliding groove 7 is provided on the connecting plate 503. Through grooves are provided on both sides of the slider 504 along the length direction of the sliding groove 7. Limit strips that cooperate with the through grooves to prevent the slider 504 from disengaging from the sliding groove 7 are provided on the inner walls of both sides of the sliding groove 7. After the limit screw 502 abuts tightly against the sliding groove 7, the slider 504 does not move in the sliding groove 7.

[0031] The connecting plate 503 on one of the vertical plates 2 is arranged below the articulated seat 501, and the connecting plate 503 on the other vertical plate 2 is arranged above the articulated seat 501, avoiding blocking the operation of screwing the limit screw 502 after the expansion rod 6 is folded and placed.

[0032] The expansion rod 6 includes a sleeve 601 and a movable rod 603 movably arranged in the sleeve 601. A fixing knob 602 that threadedly penetrates the sleeve 601 and abuts against the movable rod 603 is provided on the sleeve 601. The movable rod 603 can move freely in the sleeve 601, thereby realizing the length adjustment of the expansion rod 6, and then fixing the length of the expansion rod 6 by tightening the movable rod 603 with the fixing knob 602.

[0033] The bottom of the vertical plate 2 is connected with a mounting plate 3. A fixing screw 4 connected to the staircase 1 vertically penetrates through the mounting plate 3. The vertical plate 2 is fixed on the staircase 1 through the fixing screw 4 on the mounting plate 3 to maintain the stability of the guardrail.

[0034] The sliding groove 7 communicates with the upper end surface of the vertical plate 2. Subsequently, the sliding seat 5 can be removed from the sliding groove 7, thus facilitating the replacement of the sliding seat 5 and the expansion rod 6.

[0035] There are at least two sliding grooves 7 on each of the two vertical plates 2. After two sliding grooves 7 are provided, two telescopic rods 6 can be provided, which can better reduce the gap between the two vertical plates 2 and prevent people from falling down the stairs.

[0036] Scale lines 8 are provided on the vertical plates 2. The scale lines 8 are provided to facilitate viewing the position of the sliding seat 5 and moving the sliding seat 5 to a suitable position.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A telescopic and adjustable-angle staircase guardrail, comprising two vertical plates (2) fixedly installed on a staircase (1), characterized in that, On the opposite faces of the two vertical plates (2), chutes (7) are vertically provided. A sliding seat (5) that is fixed after movement is slidably arranged in the chutes (7), and a telescopic rod (6) is hinged between the two sliding seats (5).

2. The retractable and angle-adjustable staircase guardrail according to claim 1, characterized in that, The sliding seat (5) includes a slider (504) slidably arranged in the chute (7). An articulated seat (501) and a connecting plate (503) connected to the articulated seat (501) are arranged on the slider (504). A limit screw (502) whose thread penetrates through the connecting plate (503) and the slider (504) and abuts against the chute (7) is arranged on the connecting plate (503).

3. The retractable and angle-adjustable staircase guardrail according to claim 2, wherein The connecting plate (503) on one of the vertical plates (2) is arranged below the articulated seat (501), and the connecting plate (503) on the other vertical plate (2) is arranged above the articulated seat (501).

4. A retractable and adjustable-angle staircase guardrail according to claim 1, characterized in that, The telescopic rod (6) includes a sleeve (601) and a movable rod (603) movably arranged in the sleeve (601). A fixing knob (602) that abuts against the movable rod (603) is threadedly penetrated through the sleeve (601).

5. A retractable and adjustable-angle staircase guardrail according to claim 1, characterized in that, The bottom of the vertical plate (2) is connected with a mounting plate (3), and a fixing screw (4) connected to the staircase (1) is vertically penetrated through the mounting plate (3).

6. A retractable and adjustable-angle staircase guardrail according to claim 1, characterized in that, The chute (7) communicates with the upper end face of the vertical plate (2).

7. A retractable and adjustable-angle staircase guardrail according to claim 1, characterized in that, At least two chutes (7) are provided on each of the two vertical plates (2).

8. A retractable and adjustable-angle staircase railing according to claim 1, characterized in that, A scale line (8) is provided on the vertical plate (2).

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