Tower crane safety channel with anti-falling protection function

Abstract

The utility model discloses a tower crane safety channel with an anti-falling protection function, and relates to the technical field of tower crane safety channels, a plurality of movable frames are movably inserted into open grooves respectively, and positioning screw rods penetrate through the side walls of guardrails and then are screwed on the side walls of the movable frames in a threaded manner; the top ends of the rotating rods in the same group are rotationally connected to the bottom surface of the movable frame through hinge seats, the bottom ends of the rotating rods are rotationally connected with rollers through the rotating rods, and adjusting grooves are formed in the side walls of the rotating rods in a penetrating mode; a plurality of adjusting blocks are arranged in the adjusting grooves in a sliding mode, and the two ends of the two-way lead screw are connected to the corresponding adjusting blocks in a threaded and screwed mode respectively; a plurality of connecting rods are movably inserted into the movable frame respectively, and the middle part of the two-way screw rod is screwed at the bottom ends of the connecting rods through bearings; the bidirectional lead screw drives the adjusting block to slide in the adjusting groove, so that the rotating rod is driven to rotate, the height of the movable frame and the guardrail is conveniently adjusted, the height of the guardrail is increased, and falling accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane safety passages, in particular to a tower crane safety passage provided with anti-fall protection. Background Art

[0002] When the existing tower crane safety passage is installed, the guardrails on both sides have a fixed height and cannot be adjusted according to the height of the operator, which poses a risk of falling. Therefore, a tower crane safety passage with anti-fall protection is urgently needed to solve the above problem. Utility Model Content

[0003] The purpose of the utility model is to provide a tower crane safety passage with anti-fall protection in view of the defects and shortcomings of the prior art, and its technical features can solve the above problems.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it comprises a bottom plate and guardrails; a plurality of guardrails are arranged on the left and right sides of the bottom plate, and a slot is provided at the top of the guardrails;

[0005] It also contains:

[0006] There are several movable frames, which are movably inserted into the slots respectively, and the positioning screw passes through the side wall of the guardrail and is screwed on the side wall of the movable frame;

[0007] Rotating rods, wherein there are several rotating rods, and two of them form a group, the top ends of the rotating rods in the same group are screwed to the bottom surface of the movable frame by means of a hinge seat, and the bottom ends of the rotating rods are screwed to a roller by means of the rotating rods, and an adjustment slot is provided through the side wall of the rotating rod;

[0008] There are several adjusting blocks, which are slidably arranged in the adjusting slots, and both ends of the bidirectional screw rod are respectively threadedly connected to the corresponding adjusting blocks;

[0009] The connecting rods are multiple and are movably inserted on the movable frame respectively, and the middle part of the bidirectional screw rod is screwed to the bottom end of the connecting rod by means of a bearing.

[0010] Preferably, a positioning rod is screwed on the side walls of the movable frames at the front and rear ends by means of a rebound rotating shaft, and openings are opened through the movable frames at the front and rear ends, the adjusting rod is movably inserted in the opening by means of a spring, and the two ends of the spring are respectively connected to the opening and the adjusting rod, the two ends of the adjusting plate are respectively arranged at the ends of the adjusting rod, and the ends of the positioning rod are movably abutted on the adjusting plate, a number of baffles are arranged on the adjusting plate, and the positioning rod is movably abutted against the baffles, and after the bolt passes through the side wall of the adjusting plate, it is threadedly screwed on the side wall of the positioning rod.

[0011] Preferably, handrails are provided on opposite surfaces of the two adjustment plates.

[0012] Preferably, a safety net is provided between the plurality of guardrails.

[0013] Preferably, guide rods are provided on the plurality of guardrails, and the rollers are rotatably arranged on the guide rods.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the tower crane safety passage with anti-fall protection described in the utility model drives the adjustment block to slide in the adjustment groove through the bidirectional screw rod, thereby driving the rotating rod to rotate, which is convenient for adjusting the height of the movable frame and the guardrail, thereby increasing the height of the guardrail and avoiding falling accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0017] Figure 3 It is a structural schematic diagram of a movable frame and an adjusting plate in the utility model.

[0018] Figure 4 It is a structural schematic diagram of the positioning rod in the utility model.

[0019] Description of reference numerals:

[0020] Base plate 1, guardrail 2, slot 3, movable frame 4, positioning screw 5, rotating rod 6, roller 7, adjustment slot 8, adjustment block 9, bidirectional screw 10, connecting rod 11, positioning rod 12, opening 13, adjustment rod 14, spring 15, baffle 16, handrail 17, safety net 18, guide rod 19, adjustment plate 20. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] like Figure 1 -- Figure 4 As shown, this specific embodiment adopts the following technical solution: it comprises a bottom plate 1 and a guardrail 2; a plurality of guardrails 2 are arranged on the left and right sides of the bottom plate 1, and a slot 3 is opened at the top of the guardrail 2;

[0023] It also contains:

[0024] The movable frame 4 is a plurality of movable frames 4, which are movably inserted into the slots 3, and the positioning screw 5 passes through the side wall of the guardrail 2 and is screwed on the side wall of the movable frame 4. The movable frame 4 plays a role in adjusting the height of the guardrail 2. The height of the guardrail 2 is adjusted according to the height of the operator to avoid falling;

[0025] Rotating rods 6, there are several rotating rods 6, and two of them form a group, the top ends of the rotating rods 6 of the same group are screwed to the bottom surface of the movable frame 4 by means of a hinge seat, and the bottom ends of the rotating rods 6 are screwed to a roller 7 by means of the rotating rods, and an adjustment slot 8 is provided through the side wall of the rotating rods 6, and the rotating rods 6 play an adjustment role, and the distance between the top of the guardrail 2 and the movable frame 4 is adjusted according to the rotation angle of the rotating rods 6;

[0026] Adjustment blocks 9, there are several adjustment blocks 9, several adjustment blocks 9 are slidably set in the adjustment slot 8, both ends of the bidirectional screw rod 10 are respectively screwed on the corresponding adjustment blocks 9, and the adjustment blocks 9 can only slide along the direction of the adjustment slot 8. The bidirectional screw rod 10 is used to adjust the moving position of the adjustment blocks 9 in the same group, thereby controlling the rotation angle of the rotating rod 6;

[0027] Connecting rods 11, there are several connecting rods 11, and the several connecting rods 11 are movably inserted on the movable frame 4, and the middle part of the bidirectional screw rod 10 is screwed to the bottom end of the connecting rod 11 by a bearing, and the connecting rod 11 plays a role of limiting, so as to limit the bidirectional screw rod 10 in the movable frame 4;

[0028] The side walls of the movable frames 4 at the front and rear ends are screwed with positioning rods 12 by means of a rebound shaft, and the movable frames 4 at the front and rear ends are provided with openings 13, the adjusting rod 14 is movably inserted in the openings 13 by means of a spring 15, and the two ends of the spring 15 are respectively connected to the openings 13 and the adjusting rod 14, the two ends of the adjusting plate 20 are respectively arranged at the ends of the adjusting rod 14, and the ends of the positioning rod 12 are movably abutted against the adjusting plate 20, a plurality of baffles 16 are arranged on the adjusting plate 20, and the positioning rod 12 is movably abutted against the baffle 16, and the bolt passes through the side wall of the adjusting plate 20 and is screwed on the side wall of the positioning rod 12 by thread. The baffle 16 serves to limit the position of the end of the positioning rod 12. The end of the positioning rod 12 is movably abutted against the corresponding baffle 16 and fixed with bolts, so that it is convenient to adjust the distance between the two adjustment plates 20 according to the rotation angle of the positioning rod 12, thereby adjusting the width of the tower crane safety passage, so that when the operator passes through the tower crane safety passage, both hands touch the adjustment plate 20, so as to avoid the operator falling on the safety passage and provide the safety of the safety passage. Handrails 17 are provided on the opposite surfaces of the two adjustment plates 20. Through the auxiliary effect of the handrails 17, the stability of the operator passing through the safety passage is improved;

[0029] A safety net 18 is provided between several guardrails 2. The limiting function of the safety net 18 is utilized to block the gaps between the guardrails 2 to avoid falling accidents. Guide rods 19 are provided on several guardrails 2, and the roller 7 is rotatably set on the guide rods 19. The guide rods 19 play a guiding role, so that the roller 7 can only roll along the direction of the guide rods 19, which is convenient for adjusting the height of the movable frame 4.

[0030] When the utility model is used and the height of the guardrail 2 needs to be adjusted, the operator first rotates the hand-tightening at the end of the two-way screw rod 10 to move the adjustment block 9 on the two-way screw rod 10, and the adjustment block 9 drives the corresponding rotating rod 6 to rotate. Due to the deadweight of the movable frame 4, the roller 7 is movable against the guide rod 19. When the rotating rod 6 rotates, the roller 7 is driven to roll on the guide rod 19. According to the rotation angle of the rotating rod 6, the movable frame 4 is moved along the direction of the slot 3, thereby adjusting the distance between the movable frame 4 and the guardrail 2 until the movable frame 4 moves to a suitable height. After that, the positioning screw 5 passes through the side wall of the guardrail 2 and is screwed on the side wall of the movable frame 4, thereby fixing the movable frame 4 on the guardrail 2.

[0031] When adjusting the width of the tower crane's safety passage, the operator first pulls the adjustment plate 20 to move the adjustment plate 20 along the direction of the adjustment rod 14, and then rotates the positioning rod 12 to a suitable angle, and then makes the end of the positioning rod 12 movably contact with a suitable baffle 16, and then uses the elastic force of the spring 15 to make the positioning rod 12 and the baffle 16 movably contact each other, and uses bolts to fix the end of the positioning rod 12 to the adjustment rod 14, so that the adjustment plates 20 on both sides are moved to suitable positions, thereby adjusting the width of the tower crane's safety passage.

[0032] After adopting the above structure, the beneficial effects of this specific implementation are as follows:

[0033] 1. Set up a movable frame 4, and drive the adjustment block 9 to slide along the direction of the adjustment slot 8 by rotating the bidirectional screw rod 10, so as to adjust the rotating rod 6 to a suitable angle, so that the movable frame 4 moves along the direction of the slot 3, thereby adjusting the height of the guardrail 2 to avoid falling accidents;

[0034] 2. An adjustment plate 20 is provided, and the positioning rod 12 is movably pressed against a suitable baffle 16 and fixed with bolts, so as to facilitate adjustment of the spacing between the adjustment plates 20 on both sides, thereby adjusting the width of the tower crane safety passage and improving the safety of the safety passage.

[0035] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A tower crane safety passage with anti-fall protection, comprising a base plate (1) and a guardrail (2); a plurality of guardrails (2) are arranged on the left and right sides of the base plate (1), and a slot (3) is provided at the top of the guardrail (2); It is characterized in that It also contains: A movable frame (4), wherein the movable frames (4) are in plurality, and the plurality of movable frames (4) are movably inserted into the slots (3), and the positioning screw (5) passes through the side wall of the guardrail (2) and is then threadedly screwed onto the side wall of the movable frame (4); Rotating rods (6), wherein the rotating rods (6) are in plurality and are arranged in pairs, the top ends of the rotating rods (6) in the same group are screwed to the bottom surface of the movable frame (4) by means of hinge seats, and the bottom ends of the rotating rods (6) are screwed to rollers (7) by means of the rotating rods, and the side walls of the rotating rods (6) are provided with adjustment slots (8); An adjusting block (9), wherein the adjusting blocks (9) are in plurality, and the plurality of adjusting blocks (9) are slidably arranged in the adjusting groove (8), and the two ends of the bidirectional screw rod (10) are respectively threadedly connected to the corresponding adjusting blocks (9); The connecting rod (11) is a plurality of connecting rods (11), each of which is movably inserted on the movable frame (4), and the middle of the bidirectional screw rod (10) is screwed to the bottom end of the connecting rod (11) by means of a bearing.

2. A tower crane safety passage with anti-fall protection according to claim 1, characterized in that: Positioning rods (12) are rotatably connected to the side walls of the movable frames (4) at the front and rear ends by means of a rebound shaft, and openings (13) are provided through the movable frames (4) at the front and rear ends, an adjusting rod (14) is movably inserted into the opening (13) by means of a spring (15), and the two ends of the spring (15) are respectively connected to the opening (13) and the adjusting rod (14), the two ends of the adjusting plate (20) are respectively arranged at the ends of the adjusting rod (14), and the end of the positioning rod (12) movably contacts the adjusting plate (20), a plurality of baffles (16) are arranged on the adjusting plate (20), and the positioning rod (12) and the baffles (16) are movably contacted, and a bolt passes through the side wall of the adjusting plate (20) and is screwed onto the side wall of the positioning rod (12) by means of a thread.

3. A tower crane safety passage with anti-fall protection according to claim 2, characterized in that: Handrails (17) are provided on opposite surfaces of the two adjustment plates (20).

4. A tower crane safety passage with anti-fall protection according to claim 1, characterized in that: A safety net (18) is provided between the plurality of guardrails (2).

5. The tower crane safety passage with anti-fall protection according to claim 1 is characterized in that: A plurality of guardrails (2) are each provided with a guide rod (19), and a roller (7) is rotatably arranged on the guide rod (19).

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