Guardrail locking structure

Abstract

The utility model relates to the technical field of locking, and discloses a guardrail locking structure which comprises a fixing plate welded and fixed on a first handrail in an operation platform body, one side face of the four sides of the fixing plate is opened to form a notch, a second handrail movably extends into the fixing plate through the notch, an inserting hole is formed in the fixing plate at the position of the notch, and the second handrail is inserted into the inserting hole. A through hole is formed in the rear end of the bolt, a lock rod is arranged above the bolt, a first triangular retaining ring and a second triangular retaining ring are installed at the front end and the rear end of the lock rod respectively, the second triangular retaining ring penetrates through the through hole to form movable inserting and fixing of the bolt and the lock rod, and the first triangular retaining ring is arranged at the front end of the bolt in a sleeved mode. According to the locking structure, through cooperation of the plug pin and the fixing plate, the plug pin penetrates through the fixing plate to achieve the locking effect of the guardrail, the lock rod limits the position of the plug pin on the fixing plate, the plug pin is prevented from being accidentally disengaged, the requirement for the fixing firmness after the guardrail is unfolded is met, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of locking, in particular to a guardrail locking structure. Background Art

[0002] Aerial work platform is a kind of equipment designed for aerial work. It is widely used in various industries, such as industrial construction, municipal venues, power facilities, petrochemical, metallurgy and other fields, for equipment installation, maintenance, cleaning and other aerial work. Aerial work platform generally includes a basic platform and guardrails installed around the platform.

[0003] There are many types and functions of aerial work platforms. Among them, for work platforms with foldable guardrails, since the guardrails need to be folded and stored, the fixing method is hinged fixing. After unfolding, in order to ensure stability after unfolding, locking components are required to fix them. At present, the locking method on the market is mainly bolt fixing. Bolt fixing is reliable, but it is not convenient to disassemble and assemble, and it is relatively time-consuming. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a guardrail locking structure to solve the problems in the background technology.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the utility model provides the following technical solutions:

[0008] A guardrail locking structure includes a fixing plate welded and fixed on a railing 1 in a work platform body, a railing 2 at an adjacent position to the railing 1 in the work platform body is movably fixed to the fixing plate, one of the side openings on the four sides of the fixing plate forms a notch, and the railing 2 movably extends into the fixing plate through the notch, a plug hole is provided on the fixing plate at the notch position, a latch is inserted into the plug hole, a through hole is provided at the rear end position of the latch, a locking rod is provided above the latch, a triangular buckle 1 and a triangular buckle 2 are respectively installed at the front and rear ends of the locking rod, the triangular buckle 2 passes through the through hole to form a movable plug-in fixation between the latch and the locking rod, and the triangular buckle is set on the front end of the latch.

[0009] Preferably, the locking rod is provided with a buckle, the buckle is connected with a connecting rope, the far end of the connecting rope away from the buckle is connected with a fixing ear, and the fixing ear is fixed to the railing 1 or railing 2 at the corresponding position by means of screws.

[0010] (III) Beneficial effects

[0011] Compared with the prior art, the utility model provides a guardrail locking structure, which has the following beneficial effects:

[0012] 1. The locking structure, through the cooperation of the latch and the fixed plate, the latch passes through the fixed plate to form a locking effect of the guardrail, and the locking rod limits the position of the latch on the fixed plate to prevent it from accidentally disengaging, which not only meets the fixing firmness requirements of the guardrail after unfolding, but also facilitates disassembly and assembly.

[0013] 2. The locking structure uses a connecting rope to hang the latch and the locking rod on the guardrail to fix them. After disassembly, there is no need to put the latch back or store it specially, which is convenient for subsequent installation and retrieval. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the locking mechanism in the utility model;

[0015] Figure 2 It is a schematic diagram of the installation of the locking mechanism in the utility model;

[0016] Figure 3 This is a diagram of the lock rod in the utility model in an open state;

[0017] Figure 4 It is a schematic diagram of the installation of the locking fixture in the utility model;

[0018] Figure 5 It is a schematic diagram of the installation of the locking mechanism in the working platform body of the utility model;

[0019] Figure 6 It is a three-dimensional diagram of the working platform body in the utility model;

[0020] Figure 7 It is a schematic diagram of the hinge connection between the upper guardrail and the lower guardrail in the utility model.

[0021] In the figure: 1. locking mechanism; 11. latch; 12. locking rod; 13. triangular buckle one; 14. triangular buckle two; 15. through hole; 16. buckle; 17. fixing ear; 18. connecting rope; 2. locking fixture; 21. fixing plate; 22. socket; 23. notch; 3. working platform body; 31. electric platform; 32. lower guardrail; 33. upper guardrail; 331. upper railing one; 332. upper railing two; 34. hinged fastener. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] See also Figure 1-7A guardrail locking structure includes a locking mechanism 1 and a locking fixture 2. The locking mechanism 1 is fixed on a work platform body 3 through the locking fixture 2. The work platform body 3 includes an electric platform 31, a lower guardrail 32 and an upper guardrail 33. The lower guardrail 32 is welded and fixed to the top surface of the electric platform 31 near the four sides. The upper guardrail 33 is hinged and fixed to the lower guardrail 32 through an articulated fastener 34. The articulated fastener 34 is welded and installed on the top of the lower guardrail 32. The bottom position of the upper guardrail 33 is hinged and fixed to the articulated fastener 34.

[0024] The locking fixture 2 includes a fixing plate 21, the width of the fixing plate 21 is at least 1.5 times the width of the upper railing 1 331 or the upper railing 2 332, the cross section of the fixing plate 21 is set in a U-shaped structure, one of the side openings of the four sides of the fixing plate 21 forms a notch 23, a plug hole 22 is opened on the fixing plate 21 at the position of the notch 23, the upper railing 2 332 is located on the inner side of the fixing plate 21 at the position of the notch 23, and one of the side edges on the left and right sides of the notch 23 is welded and fixed to the outer side wall of the upper railing 1 331 at the corresponding position;

[0025] The locking mechanism 1 includes a latch 11 and a locking rod 12. A through hole 15 is opened at the rear end of the latch 11. The locking rod 12 is located above the latch 11. A triangular buckle 13 and a triangular buckle 14 are welded and installed on the front and rear ends of the locking rod 12 respectively. The triangular buckle 14 passes through the through hole 15 to form a movable plug-in fixation between the latch 11 and the locking rod 12. The triangular buckle 13 is sleeved on the front end of the latch 11. The distance between the triangular buckle 13 and the front end of the latch 11 is at least 0.5 cm. The latch 11 is inserted into the insertion hole 22 of the fixing plate 21 to form a mutual locking fixation between the upper railing 1 331 and the upper railing 2 332.

[0026] During installation, the fixing plate 21 is first welded and fixed. When locking, the triangular buckle ring 13 is first pulled outward to deform the locking rod 12. At the same time, the plug-in relationship between the triangular buckle ring 14 and the through hole 15 is utilized to rotate the locking rod 12 to make the triangular buckle ring 13 slip out from the front end of the latch pin 11. The latch pin 11 is held and passed through the insertion hole 22 of the fixing plate 21 from the front end, and then the triangular buckle ring 13 is buckled on the front end of the latch pin 11. Both ends of the latch pin 11 are restricted by the triangular buckle ring 13, the triangular buckle ring 14 and the locking rod 12. At the same time, the latch pin 11 is restricted by the fixing plate 21 and the locking rod 12, so that the latch pin 11 cannot slip out. When disassembling, the triangular buckle ring 13 is pulled outward to disengage from the latch pin 11. At this time, the locking rod 12 can be flipped open and away from the fixing plate 21, and then the latch pin 11 can be pulled out.

[0027] In this embodiment, a buckle 16 is sleeved on the locking rod 12, and a connecting rope 18 is connected to the buckle 16. The far end of the connecting rope 18 away from the buckle 16 is connected to a fixing ear 17. The fixing ear 17 is fixed to the upper rail 1 331 or the upper rail 2 332 at the corresponding position by screws. The length of the connecting rope 18 meets the distance requirement between the locking rod 12 and the fixing plate 21 when the locking rod 12 is flipped.

[0028] After disassembly, since the connecting rope 18 is fixed to the upper railing 1 331 or the upper railing 2 332, even if the locking mechanism 1 is released, it will not fall directly, but will still be hung on the work platform body 3 relying on the connecting rope 18. When the work platform body 3 is subsequently reassembled, it can be directly used without the need to recover or use the locking mechanism 1 separately.

Claims

1. A guardrail locking structure, comprising a fixing plate (21) welded and fixed on an upper railing 1 (331) in a work platform body (3), an upper railing 2 (332) adjacent to the upper railing 1 (331) in the work platform body (3) being movably fixed to the fixing plate (21), characterized in that: One of the four sides of the fixing plate (21) is opened to form a notch (23), and the upper railing (332) is movably extended into the fixing plate (21) through the notch (23). A plug hole (22) is provided on the fixing plate (21) at the position of the notch (23), and a plug pin (11) is inserted into the plug hole (22). A through hole (15) is provided at the rear end position of the plug pin (11), and a locking rod (12) is provided above the plug pin (11). A triangular buckle ring (13) and a triangular buckle ring (14) are respectively installed at the front and rear ends of the locking rod (12), and the triangular buckle ring (14) passes through the through hole (15) to form a movable plug-in fixation between the plug pin (11) and the locking rod (12), and the triangular buckle ring (13) is sleeved on the front end of the plug pin (11).

2. A guardrail locking structure according to claim 1, characterized in that: The locking rod (12) is sleeved with a buckle (16), the buckle (16) is connected with a connecting rope (18), the far end of the connecting rope (18) away from the buckle (16) is connected with a fixing ear (17), and the fixing ear (17) is fixed to the upper railing 1 (331) or the upper railing 2 (332) at the corresponding position by means of screws.

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