Portable guardrail for elevator construction operation

Abstract

The utility model relates to the technical field of elevator construction, in particular to a portable guardrail for elevator construction operation, which comprises a guardrail main body, fixing plates are fixed at two ends of the guardrail main body, springs are fixedly connected to the inner walls of the fixing plates, connecting rods are connected to the end parts of the springs, connecting columns are fixed to the end parts of the connecting rods, and the connecting columns are fixed to the end parts of the connecting rods. A guardrail plate is fixed to the bottom of the connecting column, a sliding column capable of sliding is arranged outside the guardrail body, connecting rods are hinged to the two ends of the sliding column, the connecting rods are hinged to the guardrail plate, a sliding rod capable of sliding in a lifting mode is arranged outside the connecting column, and a telescopic rod is fixed to the end of the sliding rod. According to the portable guardrail for elevator construction operation, the supporting area of the guardrail plates can be adjusted, the guardrail plates are attached to the inner walls of the two sides of an elevator entrance for fixed supporting use, then the portable guardrail is suitable for elevator entrances of different sizes, the application range is widened, the supporting height of the guardrail is adjusted, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator construction, in particular to a portable guardrail for elevator construction operations. Background Art

[0002] An elevator is a vertical lift powered by an electric motor. The elevator is installed in a vertical shaft. It has a car that runs between at least two vertical rigid rails or rails with an inclination angle of less than 15. The elevator shaft needs to be installed with elevator guide rails, elevator cars, elevator safety clamps, traction wire ropes, elevator counterweights, and landing doors on each floor. The installation of the elevator usually requires a working platform to be set up in the elevator shaft.

[0003] In order to prevent unauthorized persons from accidentally entering the elevator during construction, elevator guardrails are usually placed on the ground at the elevator entrance.

[0004] Currently, most of the guardrails on the market can be directly placed at the elevator entrance for use. However, elevator entrances vary in size, and the elevator guardrail is not convenient to adjust according to the size of the elevator entrance during use, making it impossible to fix and support elevator entrances of different sizes. The scope of application is limited, and it is not convenient to adjust the height of the guardrail, which reduces the use effect. Utility Model Content

[0005] The purpose of the present utility model is to provide a portable guardrail for elevator construction operations, so as to solve the problem that the existing guardrail is not convenient to adjust according to different elevator entrance sizes and it is not convenient to adjust the height of the guardrail as mentioned in the above background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: a portable guardrail for elevator construction operations, including a guardrail body, fixed plates are fixed at both ends of the guardrail body, a spring is fixedly connected to the inner wall of the fixed plate, a connecting rod is connected to the end of the spring, a connecting column is fixed to the end of the connecting rod, a guardrail plate is fixed to the bottom of the connecting column, a slidable sliding column is provided on the outside of the guardrail body, connecting rods are hinged at both ends of the sliding column, the connecting rod is hinged to the guardrail plate, a lifting and sliding sliding rod is provided on the outside of the connecting column, and a telescopic rod is fixed to the end of the sliding rod.

[0006] Preferably, the connecting rod is slidably connected to the fixed plate, two guardrail plates are provided, the two guardrail plates are hinged to the two ends of the sliding column, two groups of connecting columns are provided, and the two groups of connecting columns are respectively placed at the two ends of the guardrail plate, and two sliding rods are provided, and the two sliding rods are fixedly connected by a telescopic rod.

[0007] Preferably, a mounting frame is installed at the end of the fixed plate, a worm is rotatably connected in the middle of the mounting frame, a rocker is fixed at the end of the worm, a worm wheel is meshed at the side end of the worm, a rotating rod is fixed at the bottom of the worm wheel, and a threaded sleeve is fixedly connected to the outside of the rotating rod.

[0008] Preferably, the worm gear is rotatably connected to the guardrail body, the rotating rod is rotatably connected to the guardrail body, two threaded sleeves are provided, the threaded sleeves are equiaxially distributed at both ends of the rotating rod, the threaded sleeves are arranged in opposite directions, two sliding columns are provided, the two sliding columns are threadedly sleeved with the threaded sleeves, and the two sliding columns slide in the same direction.

[0009] Preferably, the side wall of the connecting column is rotatably connected to a screw, a rotating shaft is fixed to the end of the screw, a slider is sleeved on the external thread of the screw, a guide rod is slidably embedded inside the slider, the guide rod is fixedly connected to the connecting column, and the slider is fixedly connected to the insertion rod.

[0010] Preferably, the sliding block is fixedly connected to the insertion rod, and a slot for the insertion rod to be inserted therein is provided on the side wall of the sliding rod.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, an adjustment mechanism is formed by a sliding column, a connecting rod, a guardrail plate, a connecting rod, etc. The sliding of the sliding column controls the rotation angle of the connecting rod and thus adjusts the movable spacing of the guardrail plate, so that the guardrail plate can be fitted to the inner walls on both sides of the elevator entrance for fixed support, thereby being suitable for elevator entrances of different sizes, thereby improving the scope of application.

[0013] In the utility model, a sliding rod that can be raised, lowered, slidably adjusted is provided, and the rod is inserted into a slot in the side wall to limit the position, so that the support height of the guardrail can be adjusted to improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 For the utility model Figure 1 Isometric structural diagram.

[0017] In the figure: 1. guardrail body; 2. fixing plate; 3. spring; 4. connecting rod; 5. connecting column; 6. guardrail plate; 7. sliding column; 71. mounting frame; 72. worm; 73. rocker; 74. worm wheel; 75. rotating rod; 76. threaded sleeve rod; 8. connecting rod; 9. sliding rod; 91. slot; 10. plug rod; 1001. screw; 1002. rotating shaft; 1003. slider; 1004. guide rod; 11. telescopic rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 3 The utility model provides a technical solution: a portable guardrail for elevator construction operations, including a guardrail body 1, fixed plates 2 are fixed at both ends of the guardrail body 1, springs 3 are fixedly connected to the inner wall of the fixed plate 2, the ends of the springs 3 are connected to connecting rods 4, the ends of the connecting rods 4 are fixed to connecting columns 5, and guardrail plates 6 are fixed to the bottom of the connecting columns 5. A slidable sliding column 7 is provided on the outside of the guardrail body 1, connecting rods 8 are hinged at both ends of the sliding column 7, and the connecting rod 8 is hinged to the guardrail plate 6. A lifting and sliding sliding rod 9 is provided on the outside of the connecting column 5, and a telescopic rod 11 is fixed to the end of the sliding rod 9.

[0020] It should be noted that the connecting column 5 is arranged at the upper and lower ends of the guardrail plate 6, and a base is installed at the bottom of the connecting column 5 at the bottom of the guardrail plate 6, which is supported by the ground during placement, so that the guardrail is stably supported.

[0021] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the connecting rod 4 is slidably connected to the fixed plate 2, two guardrail plates 6 are provided, and the two guardrail plates 6 are hinged at both ends of the sliding column 7, two groups of connecting columns 5 are provided, and the two groups of connecting columns 5 are respectively placed at both ends of the guardrail plates 6, and two sliding rods 9 are provided, and the two sliding rods 9 are fixedly connected by a telescopic rod 11.

[0022] In this embodiment, Figure 1 , Figure 2 and Figure 3As shown, a mounting frame 71 is installed at the end of the fixed plate 2, a worm 72 is rotatably connected in the middle of the mounting frame 71, a rocker 73 is fixed at the end of the worm 72, a worm wheel 74 is meshed at the side end of the worm 72, a rotating rod 75 is fixed at the bottom of the worm wheel 74, and a threaded sleeve 76 is fixedly sleeved on the outside of the rotating rod 75.

[0023] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the worm gear 74 is rotationally connected to the guardrail body 1, the rotating rod 75 is rotationally connected to the guardrail body 1, two threaded sleeve rods 76 are provided, the threaded sleeve rods 76 are equiaxially distributed at both ends of the rotating rod 75, the threaded sleeve rods 76 are arranged in opposite directions, and two sliding columns 7 are provided. The two sliding columns 7 are threadedly sleeved with the threaded sleeve rods 76, and the two sliding columns 7 slide in the same direction.

[0024] It should be noted that the guardrail is composed of a guardrail body 1, a connecting rod 8, and a guardrail plate 6. The guardrail plate 6 is arranged at both ends. The support area can be adjusted by adjusting the distance between the two guardrail plates 6, so that it can be suitable for elevator entrances of different sizes, so that it can be clamped to protect the elevator during construction, and the distance between the guardrail plates 6 can be adjusted to shrink so that the staff can carry it, thereby improving the portability of use.

[0025] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the side wall of the connecting column 5 is rotatably connected to a screw rod 1001, a rotating shaft 1002 is fixed to the end of the screw rod 1001, a slider 1003 is sleeved on the external thread of the screw rod 1001, a guide rod 1004 is slidably embedded inside the slider 1003, the guide rod 1004 is fixedly connected to the connecting column 5, and the slider 1003 is fixedly connected to the insertion rod 10.

[0026] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, the slide block 1003 is fixedly connected to the insertion rod 10, and the side wall of the slide rod 9 is provided with a slot 91 for the insertion rod 10 to be plugged therein.

[0027] It should be noted that the insertion rod 10 is embedded in the slot 91 to limit the sliding rod 9 so that the sliding rod 9 cannot slide.

[0028] The use method and advantages of the utility model: When the portable guardrail for elevator construction is working, the working process is as follows:

[0029] like Figure 1 , Figure 2 and Figure 3As shown, when the guardrail is used, the rocker 73 is manually rotated to drive the worm 72 to rotate. When the worm 72 rotates, it meshes with the worm wheel 74. The worm wheel 74 is forced to rotate and drives the rotating rod 75 to rotate around the guardrail body 1. When the rotating rod 75 rotates, the threaded sleeve rods 76 at both ends of the outer side rotate immediately, so that the two sliding columns 7 that are threaded with it on the outer side slide in the same direction immediately. When sliding, the connecting rod 8 at the end rotates immediately and drives the guardrail plate 6 hinged at the end to slide outward or inward immediately. At the same time, the connecting rod 4 is forced to slide in the fixed plate 2 and stretch the spring 3, so that the two guardrail plates 6 can be attached to the inner walls on both sides of the elevator entrance for fixed support, so that it is suitable for elevator entrances of different sizes, thereby improving the scope of application.

[0030] When adjusting the height of the guardrail body 1, the manually rotating shaft 1002 drives the screw 1001 to rotate. When the screw 1001 rotates, the slider 1003 with its external thread sleeve slides along the guide rod 1004. At the same time, the insertion rod 10 on the end side of the slider 1003 slides outward to disengage from the slot 91 of the slide bar 9 to release the limit. The staff then manually pulls the slide bar 9 up to adjust the height, and then the supporting height of the guardrail can be adjusted to prevent non-staff from entering the elevator when the height is too low and affecting the construction, thereby improving the use effect.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable guardrail for elevator construction work, comprising a guardrail body (1), characterized in that: The guardrail body (1) is fixed with a fixing plate (2) at both ends, the inner wall of the fixing plate (2) is fixedly connected with a spring (3), the end of the spring (3) is connected with a connecting rod (4), the end of the connecting rod (4) is fixed with a connecting column (5), the bottom of the connecting column (5) is fixed with a guardrail plate (6), the outside of the guardrail body (1) is provided with a slidable sliding column (7), the two ends of the sliding column (7) are hinged with a connecting rod (8), the connecting rod (8) is hinged with the guardrail plate (6), the outside of the connecting column (5) is provided with a sliding rod (9) that can be raised and lowered and slid, and the end of the sliding rod (9) is fixed with a telescopic rod (11).

2. A portable guardrail for elevator construction work according to claim 1, characterized in that: The connecting rod (4) is slidably connected to the fixed plate (2), two guardrail plates (6) are provided, and the two guardrail plates (6) are hinged to the two ends of the sliding column (7), two groups of connecting columns (5) are provided, and the two groups of connecting columns (5) are respectively arranged at the two ends of the guardrail plate (6), and two sliding rods (9) are provided, and the two sliding rods (9) are fixedly connected by a telescopic rod (11).

3. A portable guardrail for elevator construction work according to claim 1, characterized in that: A mounting frame (71) is mounted at the end of the fixing plate (2); a worm (72) is rotatably connected in the middle of the mounting frame (71); a rocker (73) is fixed at the end of the worm (72); a worm wheel (74) is meshed at the side end of the worm (72); a rotating rod (75) is fixed at the bottom of the worm wheel (74); and a threaded sleeve (76) is fixedly sleeved on the outside of the rotating rod (75).

4. A portable guardrail for elevator construction work according to claim 3, characterized in that: The worm gear (74) is rotationally connected to the guardrail body (1), the rotating rod (75) is rotationally connected to the guardrail body (1), two threaded sleeves (76) are provided, the threaded sleeves (76) are equiaxially distributed at both ends of the rotating rod (75), the threaded sleeves (76) are arranged in opposite directions, and two sliding columns (7) are provided. The two sliding columns (7) are threadedly sleeved with the threaded sleeves (76), and the two sliding columns (7) slide in the same direction.

5. A portable guardrail for elevator construction work according to claim 1, characterized in that: The side wall of the connecting column (5) is rotatably connected to a screw rod (1001), a rotating shaft (1002) is fixed to the end of the screw rod (1001), a slider (1003) is sleeved on the external thread of the screw rod (1001), a guide rod (1004) is slidably embedded inside the slider (1003), the guide rod (1004) is fixedly connected to the connecting column (5), and the slider (1003) is fixedly connected to the insertion rod (10).

6. A portable guardrail for elevator construction work according to claim 5, characterized in that: The sliding block (1003) is fixedly connected to the insertion rod (10), and a slot (91) is provided on the side wall of the sliding rod (9) for facilitating the insertion rod (10) to be plugged therein.

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