Protective device for elevator shaft mouth on construction working face of high-rise building

Abstract

The utility model relates to the field of construction safety protection, in particular to an elevator shaft opening protection device for a high-rise building construction working face. Comprising a fixing assembly and a protection assembly, the protection assembly is arranged on the fixing assembly, the fixing assembly comprises a foundation base, a front transverse support and a rear transverse support, the rear transverse support is fixedly arranged at the bottom of the foundation base, a sliding rod is arranged on the foundation base, a spring is arranged on the sliding rod in a sleeving mode, and the sliding rod penetrates through the front transverse support in a sliding mode. The front cross brace extrudes the front side wall of the elevator shaft through the spring and pushes the rear cross brace to be stressed and supported on the rear side wall of the elevator shaft, the distance between the rear cross brace and the rear end of the foundation base is smaller than or equal to the thickness of the rear side wall of the elevator shaft, and the distance between the front cross brace and the front end of the foundation base is larger than the thickness of the front side wall of the elevator shaft. The front end of the foundation base protrudes out of an elevator shaft opening, and the sliding range of the front cross support on the foundation frame is smaller than the thickness of the rear side wall of the elevator shaft. The installation is convenient, and the installation process is safer.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of construction safety protection, specifically to a high -rise building construction operation surface elevator shaft mouth protection device. BACKGROUND

[0002] In the high-rise building engineering construction process, the safety protection of the construction operation surface elevator shaft mouth involves the edge high-altitude operation, has the major risk hidden danger, is the key control point of guaranteeing engineering safety construction, and the common protection technical measure is to use the temporary steel formwork or the jump board for protection, and the safety and stability are poor, the warning signs are often missing, especially at night construction, there is great safety hidden danger, greatly increases the risk of personal safety of the operating personnel.

[0003] The elevator shaft construction operation layer protection device of Chinese patent CN216007883U includes a tower type protection grid and a limiting fixed terminal, the tower type protection grid includes a four-pyramid frame formed by welding steel bars, and a grid bar is arranged between every two adjacent side edges of the four-pyramid frame, the tower type protection grid is arranged at the elevator shaft mouth, two limiting fixed terminals are respectively connected to the four bottom edges of the four-pyramid frame, the limiting fixed terminals are used to abut against the inner side of the elevator shaft formwork, the tower type protection grid is arranged at the elevator shaft mouth, the bottom edges are arranged at the top of the elevator shaft formwork, the limiting fixed terminals are located at the inner side of the elevator shaft formwork and abut against the elevator shaft formwork, so that the four limiting fixed terminals limit the movement of the tower type protection grid in the horizontal direction, thereby forming protection at the elevator shaft mouth, and the problems of repeated erection, non-standard erection type, poor appearance and many safety hazards of the protection device in the prior art are solved.

[0004] However, since the elevator shaft mouth has only one side opening, the prior art needs to place the protection device on the front and rear sidewall fulcrums of the elevator shaft during installation, and then fix the four limiting fixed terminals of the protection device on the front and rear sidewalls of the elevator shaft, and the two limiting fixed terminals far from the opening side of the elevator shaft need to be operated by workers climbing on the protection device, which is not only complicated to operate, but also has safety hazards when the workers on the protection device operate. Based on this, a high-rise building construction operation surface elevator shaft mouth protection device is proposed. UTILITY MODEL CONTENTS

[0005] To solve the problems of complicated operation and safety hazards of workers during installation in the prior art, the utility model provides a high-rise building construction operation surface elevator shaft mouth protection device.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] The utility model discloses a high -rise building construction operation face elevator shaft mouth protection device, including fixed subassembly and protection subassembly, the protection subassembly sets up on fixed subassembly, the fixed subassembly includes base pedestal, front cross bracing and rear cross bracing, the rear cross bracing fixed setting is in the base pedestal bottom, be provided with the slide rod on the base pedestal, the spring is sheathed on the slide rod, the slide rod sliding is passed in on the front cross bracing, the front cross bracing is extruded with elevator shaft front lateral wall through the spring and pushes the rear cross bracing and is supported on the elevator shaft rear lateral wall.

[0008] Further, the distance from the rear cross bracing to the rear end of the base pedestal is less than or equal to the thickness of the rear lateral wall of the elevator shaft, the distance from the front cross bracing to the front end of the base pedestal is greater than the thickness of the front lateral wall of the elevator shaft, and the front end of the base pedestal protrudes from the opening of the elevator shaft.

[0009] Further, the sliding range of the front cross bracing on the base pedestal is less than the thickness of the rear lateral wall of the elevator shaft.

[0010] Further, the protection subassembly includes a bottom frame, an inclined frame, a top frame, and a protective railing, the upper and lower ends of the four inclined frames are connected to the four sides of the bottom frame and the top frame, respectively, and the upper and lower ends of the inclined frames are connected to the protective railings, respectively.

[0011] Further, the inclined frame, the bottom frame, and the top frame are welded together, and the bottom frame, the inclined frame, and the top frame are welded together to form a three-dimensional conical frame.

[0012] Further, the inclined frame is provided with a reflective warning tape at a distance of 20 cm from the bottom frame.

[0013] The utility model discloses a high -rise building construction operation face elevator shaft mouth protection device, including fixed subassembly and protection subassembly, the protection subassembly sets up on fixed subassembly, the fixed subassembly includes base pedestal, front cross bracing and rear cross bracing, the rear cross bracing fixed setting is in the base pedestal bottom, be provided with the slide rod on the base pedestal, the spring is sheathed on the slide rod, the slide rod sliding is passed in on the front cross bracing, the front cross bracing is extruded with elevator shaft front lateral wall through the spring and pushes the rear cross bracing and is supported on the elevator shaft rear lateral wall. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to facilitate the person skilled in the art to understand, the utility model makes further explanation in combination with the drawings below.

[0015] Fig. 1 It is a top view structural schematic diagram of the utility model;

[0016] Fig. 2 It is a side view structural schematic diagram of the utility model;

[0017] Fig. 3 It is a bottom structural schematic diagram of the utility model.

[0018] Mark 1, bottom frame; 2, top frame; 3, inclined frame; 4, guardrail; 5, reflective warning tape; 6, base pedestal; 7, rear cross brace; 8, elevator shaft rear side wall; 9, front cross brace; 10, slide bar; 11, elevator shaft front side wall. DETAILED DESCRIPTION

[0019] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the following will combine the drawings and the preferred embodiments to specifically describe the specific embodiments, structures, features and effects of the utility model, as follows.

[0020] As Figs. 1-3 shown, the utility model relates to a kind of high-rise building construction working face elevator shaft mouth protection device, including fixed component and protection component, protection component is set on fixed component, fixed component includes base pedestal 6, front cross brace 9 and rear cross brace 7, rear cross brace 7 is fixedly set on the bottom of base pedestal 6, slide bar 10 is set on base pedestal 6, spring is sleeved on slide bar 10, slide bar 10 is slidably penetrated on front cross brace 9, front cross brace 9 is extruded with elevator shaft front side wall 11 by spring and pushes the rear cross brace 7 and is supported on elevator shaft rear side wall 8 by force;

[0021] Prior art needs to place protection device on the elevator shaft front and rear side wall fulcrum when installing, then four limit fixed terminals of protection device are fixed on the front and rear side walls of elevator shaft respectively, and two limit fixed terminals away from the opening side of elevator shaft need to be operated by artificial climbing on protection device, not only operation is complicated, and there is also security risk when the staff on protection device operates;

[0022] Therefore, in order to more simply install the protective device on the elevator shaft, the front cross brace 9 and the rear cross brace 7 at the bottom of the base 6 are fixed, and when the protective device is installed, the front cross brace 9 abuts against the front sidewall 11 of the elevator shaft, and then the base 6 is pushed towards the outside of the elevator shaft, so that the front cross brace 9 pushes the spring to be compressed, and then the base 6 is gradually flattened and the rear cross brace 7 abuts against the rear sidewall 8 of the elevator shaft under the elastic force of the spring recovery. During the installation of the protective device, the protective device needs to be hoisted by a hoisting device to prevent the protective device from falling. After the base 6 is installed, the front cross brace 9 and the rear cross brace 7 abut against the front sidewall 11 and the rear sidewall 8 of the elevator shaft under the elastic force of the spring, respectively, to form a stable temporary fixing effect, prevent the protective device from being displaced, and the installation process is relatively simple, and the staff does not need to climb on the protective device for fixing, and the installation process is safer and more reliable.

[0023] Since the base 6 in the above embodiment is fixed by compressing the spring through the front cross brace 9, so that the front cross brace 9 and the rear cross brace 7 at the bottom of the base 6 are pressed and fixed in the elevator shaft, however, when the positions of the front cross brace 9 and the rear cross brace 7 on the base 6 are symmetrical, the front and rear of the base 6 are easily confused, and in this case, the staff is easy to abut the front cross brace 9 against the rear sidewall 8 of the elevator shaft, and support the rear cross brace 7 on the front sidewall 11 of the elevator shaft, so that when an external force is applied to the base 6 after the installation is completed, the spring on the base 6 is compressed to make one end of the base 6 completely retract into the front sidewall 11 of the elevator shaft, and then the base 6 loses the supporting effect and directly falls.

[0024] Since it is easier to push towards the inside of the elevator shaft, the protective device has the risk of being misoperated, in order to avoid this problem, in an embodiment, the distance from the rear cross brace 7 to the rear end of the base 6 is less than or equal to the thickness of the rear sidewall 8 of the elevator shaft, the distance from the front cross brace 9 to the front end of the base 6 is greater than the thickness of the front sidewall 11 of the elevator shaft, and the front end of the base 6 protrudes from the opening of the elevator shaft;

[0025] By asymmetrically arranging the front cross brace 9 and the rear cross brace 7 at the front and rear ends of the base 6, and making the front end of the base 6 longer, the distance from the front cross brace 9 to the front end of the base 6 is longer, so that the front end of the base 6 can protrude out of the elevator shaft during the installation process, and if the base 6 is installed in reverse by mistake, the front end of the base 6 will abut against the rear sidewall 8 of the elevator shaft due to the longer length, and the installation cannot be completed, forming a foolproof design, and the use is safer.

[0026] Further, the sliding range of the front cross brace 9 on the base 6 is smaller than the thickness of the rear sidewall 8 of the elevator shaft, and the compression length of the spring on the base 6 is kept in a small range, so that the compression moving distance of the front cross brace 9 after abutting against the front sidewall 11 of the elevator shaft is kept in a small range, and the front cross brace 9 can only realize the installation action, and the base 6 cannot be retracted into the rear sidewall 8 of the elevator shaft after the front cross brace 9 abuts against the front sidewall 11 of the elevator shaft, so that the base 6 cannot fall in the installation process in any case, and is more safe and reliable.

[0027] Further, the protection assembly includes the bottom frame 1, the inclined frame 3, the top frame 2 and the guardrail 4, the upper and lower ends of the four inclined frames 3 are connected to the four sides of the bottom frame 1 and the top frame 2 respectively, and the upper and lower ends of the plurality of guardrails 4 are connected to the inclined frame 3 respectively; the inclined frame 3, the bottom frame 1 and the top frame 2 are welded into a whole, and the bottom frame 1, the inclined frame 3 and the top frame 2 are welded into a three-dimensional conical frame by using the same type of square steel. Specifically, the guardrail 4 is welded into a whole with the bottom frame 1 and the top frame 2, and the guardrail 4 is welded into an elevator shaft opening protection frame by using the same type of square steel as the frame, and the horizontal spacing is 20 cm. Since there is a high probability of falling various construction materials from the elevator shaft during construction, the construction materials will accumulate on the protection device after a long time, so the conical frame can easily make the fallen construction materials slide along the inclined surface and not form accumulation on the protection device.

[0028] In order to form a warning effect in the construction operation area, in an embodiment, the inclined frame 3 is provided with a reflective warning tape 5 at a distance of 120 cm from the bottom frame 1; the reflective warning tape 5 is arranged on the inclined frame 3 in an inclined manner, can reflect more light, and has a better warning effect.

[0029] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the technical solution of the present application.

Claims

1. A protective device for elevator shaft openings at construction sites of high-rise buildings, characterized in that: The system includes a fixing component and a protective component. The protective component is mounted on the fixing component. The fixing component includes a base, a front cross brace, and a rear cross brace. The rear cross brace is fixedly mounted on the bottom of the base. A sliding rod is mounted on the base, and a spring is sleeved on the sliding rod. The sliding rod slides through the front cross brace. The front cross brace is pressed against the front side wall of the elevator shaft by the spring, which pushes the rear cross brace to be supported on the rear side wall of the elevator shaft.

2. The elevator shaft protection device for high-rise building construction sites according to claim 1, characterized in that: The distance from the rear cross brace to the rear end of the base is less than or equal to the thickness of the rear sidewall of the elevator shaft, the distance from the front cross brace to the front end of the base is greater than the thickness of the front sidewall of the elevator shaft, and the front end of the base protrudes from the elevator shaft opening.

3. The elevator shaft protection device for high-rise building construction sites according to claim 1, characterized in that: The sliding range of the front cross brace on the base is less than the thickness of the rear sidewall of the elevator shaft.

4. The elevator shaft protection device for high-rise building construction sites according to claim 1, characterized in that: The protective assembly includes a base frame, a sloping frame, a top frame, and guardrails. The top and bottom ends of the four sloping frames are respectively connected to the four sides of the base frame and the top frame, and the two ends of the guardrails are respectively connected to the top and bottom ends of the sloping frames.

5. A protective device for elevator shaft openings at high-rise building construction sites according to claim 4, characterized in that: The inclined frame, bottom frame, and top frame are welded together as a whole. The bottom frame, inclined frame, and top frame are welded together using square steel of the same type to form a three-dimensional conical frame.

6. The elevator shaft protection device for high-rise building construction sites according to claim 4, characterized in that: A reflective warning tape is installed around the inclined frame 20cm away from the bottom frame.

Images