Temporary protection device for elevator shaft on construction site

Abstract

The utility model discloses a temporary protection device for a construction site elevator shaft. The temporary protection device comprises a protection door body. A temporary channel is arranged on the protective door body; the device further comprises a fixing assembly, a buffering assembly and a warning assembly. The fixing assembly comprises a base, a height-adjustable vertical rod is arranged on the base, and a transverse rod is arranged at the upper end of the vertical rod. The buffering assembly comprises sliding grooves formed in the opposite side faces of the transverse rod, and sliding rods are arranged in the sliding grooves. Sliding plates are arranged at the upper ends of the two sides of the protective door body, extend into the sliding grooves and are in sliding connection with the corresponding sliding rods; springs are arranged on the front and rear sides of the sliding plate and outside the sliding rods. The protective door body can move and buffer to a certain degree on the outer side of an open hoistway through the buffer assembly and can automatically reset, rigid resistance is avoided when the protective door body is subjected to wind power, and therefore bolts can be prevented from being loosened due to stress, and the structural strength and the service life are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building construction, specifically point to a kind of building site elevator shaft temporary protection device. BACKGROUND

[0002] Site elevator protection is an important part of building construction safety management, and a protective door should be installed on each floor of the elevator shaft in the construction site. The protective door is generally not less than 1.5m in height and matches the width of the elevator shaft to ensure complete coverage of the shaft opening. The protective door is usually made of solid metal material and is installed by bolts fixed on both sides of the shaft.

[0003] In actual use, since there are no windows to block the wind on the construction site, the wind force in the floor is large, and the shaft is spacious, so the wind force is transmitted quickly. Therefore, in the case of rigidly blocking the wind force, the bolt of the fixed protective door in the prior art is prone to loosening. In the case of no buffer for a long time, the loosening of the bolt will cause the protective door to fall, and there is a possibility of falling into the shaft when people approach, which poses a safety hazard and improvement space. SUMMARY

[0004] The utility model solves the above-mentioned technical problem that the protective door resists wind force rigidly, and provides a temporary protective device for the elevator shaft of the construction site.

[0005] To solve the above technical problems, the utility model provides a technical scheme: a temporary protective device for the elevator shaft of the construction site, comprising a protective door body; a temporary passage is provided on the protective door body; further comprising:

[0006] A fixing assembly comprises a base, an adjustable height stand is provided on the top of the base, a horizontal bar is provided on the upper end of the stand, a fixing plate is provided on the rear side of the horizontal bar, and the fixing plate is fixedly connected with the shaft door wall by bolts;

[0007] A buffer assembly comprises a sliding groove provided on the opposite sides of the horizontal bar, and a sliding rod is provided in the sliding groove; a sliding plate is provided on the upper end of both sides of the protective door body, and the sliding plate extends into the sliding groove and is slidingly connected with the corresponding sliding rod; springs are provided on the front and rear sides of the sliding plate and outside the sliding rod;

[0008] A warning assembly comprises an extension rod provided on the front upper end of the protective door body, an infrared sensor is provided below the end of the extension rod; a warning light is provided on the top of the end of the horizontal bar away from the fixing plate.

[0009] Further, the protective door body comprises a frame, an upper mesh plate and a lower mesh plate; the upper mesh plate is fixed, and the upper end of the lower mesh plate is hingedly connected with the lower end of the upper mesh plate.

[0010] Further, the lower net plate front lower end is provided with a magnetic block one, and the upper net plate front is provided with a magnetic block two corresponding to the magnetic block one.

[0011] Further, the base is of concrete material.

[0012] Further, the vertical rod comprises a hollow rod fixedly connected with the horizontal rod, and an extension rod slidably arranged at the lower end of the hollow rod, a plurality of assembly holes are arranged on the extension rod, an assembly hole two corresponding to one of the assembly holes is arranged on the hollow rod, and the assembly hole two and the corresponding assembly hole are connected through a bolt and a nut.

[0013] Further, the horizontal rod is provided with a diagonal brace close to the front and rear ends.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] The buffer assembly enables the protective door body to move and buffer to a certain extent and reset automatically outside the spacious shaft, avoids hard resistance when wind force is borne, thereby avoiding bolt loosening under stress, and guaranteeing structural strength and service life;

[0016] The lower net plate can be turned upward, and the temporary passage can be exposed after being turned over, so that the staff can enter the shaft without disassembling the whole protective door body;

[0017] The warning assembly is further arranged, the warning light is used for reminding when the staff enters the monitoring range, the staff is prevented from approaching by mistake, and safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a protective door body structural schematic diagram of the utility model.

[0020] Figure 3 It is a fixed assembly structural schematic diagram of the utility model.

[0021] Figure 4 It is a horizontal rod longitudinal section schematic diagram of the utility model.

[0022] As shown in the drawings: 1, protective door body, 2, temporary passage, 3, upper net plate, 4, lower net plate, 5, magnetic block one, 6, magnetic block two, 7, base, 8, horizontal rod, 9, fixed plate, 10, hollow rod, 11, extension rod, 12, diagonal brace, 13, sliding groove, 14, sliding rod, 15, sliding plate, 16, extension rod, 17, infrared sensor, 18, warning light. DETAILED DESCRIPTION

[0023] The utility model discloses make further detailed description in combination with the drawings below.

[0024] Embodiment one, combine with the drawings Figure 1 、 2 A construction site elevator shaft temporary protection device, including the protection door body 1, the temporary passageway 2 is established to the protection door body 1, the protection door body 1 includes the frame and upper net board 3, lower net board 4, upper net board 3 is fixed type, and the lower end of lower net board 4 is hinged with the lower end of upper net board 3, and the lower end of the front of lower net board 4 is equipped with magnetic block one 5, and the front of upper net board 3 is equipped with magnetic block two 6 corresponding with magnetic block one 5,

[0025] In the above structure, the lower net board 4 is folded upwards, and is fixed through the adsorption of magnetic block one 5 and magnetic block two 6, so that the temporary passageway 2 is exposed, and the staff can enter the shaft from the temporary passageway 2 to work without disassembling the whole protection door body;

[0026] Combine with the drawings Figure 1 、 2 , 3, still include fixed assembly, including base 7, and the base 7 is concrete material, improves the weight of base, thereby improves stability, and the upper surface of base 7 is equipped with adjustable height's vertical rod, and the upper end of vertical rod is equipped with cross bar 8, and the rear side of cross bar 8 is equipped with fixed plate 9, and fixed plate 9 is fixed with shaft door wall through bolt, realizes the installation fixed of whole;

[0027] Based on the above structure, the vertical rod includes hollow rod 10 fixed with cross bar 8, and extension rod 11 is slidably arranged at the lower end of hollow rod 10, a plurality of assembly holes are arranged on the extension rod 11, a second assembly hole is arranged on the hollow rod 10, the second assembly hole is correspondingly arranged with one of the assembly holes, and the second assembly hole and the corresponding assembly hole are connected by a bolt and a nut; the assembly holes and the second assembly holes are connected by the bolt and the nut, the positions of the hollow rod 10 and the extension rod 11 are adjusted, the height of the vertical rod is adjusted, the protection door body 1 can be lifted to be 0-150mm away from the ground in a spacious and windy installation position, a ventilation space is provided, wind resistance is reduced, stability is further improved, and the bolt on the fixed plate 9 is prevented from loosening;

[0028] In addition, the lower surface of the cross bar 8 and close to the front and rear ends are both provided with inclined braces 12, and the lower ends of the inclined braces 12 are fixed with the front and rear surfaces of the hollow rod 10; not only improve the overall structural strength of the vertical rod, but also achieve lateral shielding from the side to prevent personnel from mistakenly entering from the side;

[0029] Combine with the drawings Figure 1 、 4It also includes a buffer assembly; a sliding groove 13 is provided on the opposite sides of the crossbar 8, and a sliding rod 14 is provided in the sliding groove 13; a sliding plate 15 is provided on the upper ends of both sides of the protective door body 1, and the sliding plate 15 extends into the sliding groove 13 and is slidably connected to the corresponding sliding rod 14; springs are provided on the front and rear sides of the sliding plate 15 and outside the sliding rod 14; the sliding connection between the sliding plate 15 and the sliding rod 14 realizes the forward and backward movement of the protective door body 1, and the springs enable it to return to its original position after being subjected to force;

[0030] Combined with appendix Figure 1 , 3 It also includes warning components; including an extension rod 16 provided at the upper front of the protective door 1, with an infrared sensor 17 provided below the end of the extension rod 16; a warning light 18 is provided on the end of the crossbar 8 away from the fixed plate 9; combined with an external control board, it can provide a warning through the warning light 18 when the infrared sensor 17 detects that a person is approaching, thereby improving safety.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A temporary protective device for elevator shafts at construction sites, comprising a protective door (1); characterized in that: The protective door (1) is provided with a temporary passage (2); it also includes: The fixing assembly includes a base (7), on which an adjustable height upright is provided, and a crossbar (8) is provided at the upper end of the upright. A fixing plate (9) is provided on the rear side of the crossbar (8), and the fixing plate (9) is fixed to the shaft door wall by bolts. The buffer assembly includes a sliding groove (13) on each side of the crossbar (8), and a sliding rod (14) in each sliding groove (13); a sliding plate (15) is provided on the upper ends of both sides of the protective door body (1), and the sliding plate (15) extends into the sliding groove (13) and is slidably connected to the corresponding sliding rod (14); springs are provided on the front and rear sides of the sliding plate (15) and outside the sliding rod (14); Warning components include an extension rod (16) provided on the upper front of the protective door (1), an infrared sensor (17) provided below the end of the extension rod (16), and a warning light (18) provided on the end of the crossbar (8) away from the fixing plate (9).

2. A temporary protective device for elevator shafts at construction sites according to claim 1, characterized in that: The protective door (1) includes a frame, a mesh panel (3), and a lower mesh panel (4); the mesh panel (3) is fixed, and the upper end of the lower mesh panel (4) is hinged to the lower end of the mesh panel (3).

3. A temporary protective device for elevator shafts at construction sites according to claim 2, characterized in that: The lower mesh plate (4) has a magnetic block 1 (5) at the lower end of its front side, and the upper mesh plate (3) has a magnetic block 2 (6) corresponding to the magnetic block 1 (5) on its front side.

4. A temporary protective device for elevator shafts at construction sites according to claim 1, characterized in that: The base (7) is made of concrete.

5. A temporary protective device for elevator shafts at construction sites according to claim 1, characterized in that: The upright includes a hollow rod (10) fixedly connected to the crossbar (8), and an extension rod (11) slidably provided at the lower end of the hollow rod (10). The extension rod (11) is provided with a plurality of assembly holes, and the hollow rod (10) is provided with an assembly hole two that corresponds to one of the assembly holes. The assembly hole two and the corresponding assembly hole are connected by bolts and nuts.

6. A temporary protective device for elevator shafts at construction sites according to claim 5, characterized in that: The crossbar (8) is provided with diagonal braces (12) below and near both the front and rear ends, and the lower ends of the diagonal braces (12) are fixed to the front and rear sides of the hollow bar (10).

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