Safety frame for engineering construction

Abstract

The utility model belongs to the technical field of engineering construction, and particularly relates to a safety frame for engineering construction, which comprises supporting legs, a lifting platform is arranged above the supporting legs, a cross rod is fixedly connected to the outer walls of the supporting legs, a lifting device is arranged on the cross rod, the lifting device comprises a two-way screw rod, the two-way screw rod penetrates through the cross rod and is rotatably connected with the cross rod, and the two-way screw rod penetrates through the cross rod. The rotating wheel is fixedly connected with the outer wall of the two-way screw rod, and the two-way screw rod penetrates through the ratchet wheel and is fixedly connected with the two-way screw rod. According to the safety frame for engineering construction, when a rotating wheel rotates, a two-way screw rotates, meanwhile, two sets of moving blocks move towards the two sides, in the process, a supporting rod lifts a lifting table, so that height adjustment of the lifting table is achieved, meanwhile, through the design of a ratchet wheel and a clamping rod, the two-way screw can be limited, and the lifting table is prevented from sliding; according to the design, the lifting platform can be rapidly adjusted, and the working efficiency of workers is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to a safety frame for engineering construction. Background Art

[0002] Safety racks are various racks set up at construction sites to ensure the safety of construction workers going up and down or the perimeter. This type of rack plays a vital role in construction. It not only provides a platform for construction workers to work, but also ensures their safety when working at heights.

[0003] At present, most of the existing safety frames for engineering construction are difficult to adjust their heights after they are erected. If construction work at different heights is performed, the height of the safety frame needs to be readjusted, which affects work efficiency. In view of this, we propose a safety frame for engineering construction. Summary of the invention

[0004] The main purpose of the utility model is to provide a safety frame for engineering construction, which can solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model proposes a safety frame for engineering construction, including support legs, a lifting platform is provided above the support legs, a cross bar is fixedly connected to the outer wall of the support legs, and a lifting device is provided on the cross bar, and the lifting device includes:

[0006] A bidirectional screw rod, the bidirectional screw rod passing through the cross bar and being rotatably connected to the cross bar;

[0007] A rotating wheel, the rotating wheel is fixedly connected to the outer wall of the bidirectional screw;

[0008] A ratchet wheel, the ratchet wheel is penetrated by the bidirectional screw and is fixedly connected to the bidirectional screw;

[0009] and a moving block, wherein the moving block is penetrated by the bidirectional screw and is threadedly connected with the bidirectional screw.

[0010] Preferably, the moving block is penetrated by a guide rod and is slidably connected to the guide rod, the guide rod is fixedly connected to the inner wall of the cross bar, the outer wall of the moving block is hinged with a support rod, and one end of the support rod away from the moving block is hinged to the lifting platform.

[0011] Preferably, the outer wall of the cross bar is fixedly connected to a slide seat, and the slide seat is slidably connected to a clamping rod for limiting the ratchet, the outer wall of the clamping rod is fixedly connected to a spring 2 and a pull rod, one end of the spring 2 away from the clamping rod is fixedly connected to the inner wall of the slide seat, and the pull rod passes through the slide seat and is slidably connected to the slide seat.

[0012] Preferably, a telescopic rod is slidably connected to the inner wall of the supporting leg, the output end of the telescopic rod is fixedly connected to the lifting platform, one end of a spring is fixedly connected to the outside of the telescopic rod for supporting the telescopic rod, and the other end of the spring is fixedly connected to the inner wall of the supporting leg.

[0013] Preferably, the outer wall of the supporting leg is hinged with a hinge rod 1 and a rotating plate, the hinge rod 1 is penetrated by a transverse axis away from the supporting leg and is rotatably connected to the transverse axis, the transverse axis penetrates hinge rod 2 and is rotatably connected to hinge rod 2, and the end of hinge rod 2 away from the transverse axis is hinged to the rotating plate.

[0014] Preferably, the bottom of the telescopic rod is hinged with an articulated rod three, and the end of the articulated rod three away from the telescopic rod is hinged with a sliding block, the sliding block is slidably connected to the support leg to provide movement stability of the sliding block, the sliding block is sleeved with a rotating sleeve, and the rotating sleeve is rotatably connected to the horizontal axis.

[0015] The utility model provides a safety frame for engineering construction, which has the following beneficial effects:

[0016] (1) The safety frame used in this project construction, when the wheel rotates, the bidirectional screw rotates, and the two sets of moving blocks move to both sides. During this process, the support rod will lift the lifting platform, thereby realizing the height adjustment of the lifting platform. At the same time, through the design of the ratchet and the clamping rod, the bidirectional screw can be limited to prevent the lifting platform from sliding. This design can quickly adjust the lifting platform, effectively improving the work efficiency of workers.

[0017] (2) The safety frame used in the construction project, when the worker stands on the lifting platform, the telescopic rod will slide downward inside the supporting leg, and at the same time, the hinged rod three will exert a force on the sliding block, so that the sliding block drives the rotating sleeve to move. At this time, the horizontal axis will exert a force on the hinged rod one and the hinged rod two, so that the hinged rod one and the hinged rod two will rotate. When the hinged rod two rotates, the rotating plate will be subjected to the force of the hinged rod two, so that it will flip over, and then support the device, thereby improving the stability of the safety frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2This is a schematic diagram of the three-dimensional cross-sectional structure of the support leg of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the telescopic rod of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the ratchet of the utility model;

[0024] Figure 6 For this utility model Figure 2 Schematic diagram of the structure of A;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0026] Description of Figure Numbers:

[0027] 1. Support leg; 11. Telescopic rod; 12. Spring 1; 13. Articulated rod 1; 14. Articulated rod 2; 15. Rotating plate; 16. Rotating sleeve; 17. Sliding block; 18. Horizontal axis; 19. Articulated rod 3; 2. Lifting device; 21. Rotating wheel; 22. Bidirectional screw; 23. Ratchet; 24. Moving block; 25. Support rod; 26. Guide rod; 3. Lifting platform; 4. Cross bar; 40. Sliding seat; 41. Clamping rod; 42. Spring 2; 43. Pull rod.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] 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 technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 7 The utility model provides a safety frame for engineering construction, including a support leg 1, a lifting platform 3 is arranged above the support leg 1, a cross bar 4 is fixedly connected to the outer wall of the support leg 1, and a lifting device 2 is arranged on the cross bar 4.

[0031] In the embodiment of the utility model, in order to be able to adjust the height of the lifting platform 3, specifically, the lifting device 2 includes a bidirectional screw 22, the bidirectional screw 22 penetrates the cross bar 4 and is rotatably connected to the cross bar 4, a rotating wheel 21, the rotating wheel 21 is fixedly connected to the outer wall of the bidirectional screw 22, a ratchet 23, the ratchet 23 is penetrated by the bidirectional screw 22 and is fixedly connected to the bidirectional screw 22, and a moving block 24, the moving block 24 is penetrated by the bidirectional screw 22 and is threadedly connected to the bidirectional screw 22, and the moving block 24 is connected by the guide rod 26. The guide rod 26 is connected to the inner wall of the cross bar 4 and is fixedly connected to the outer wall of the moving block 24. The support rod 25 is hinged to the outer wall of the moving block 24. The end of the support rod 25 away from the moving block 24 is hinged to the lifting platform 3. The outer wall of the cross bar 4 is fixedly connected to the sliding seat 40. The sliding seat 40 is slidably connected to the clamping rod 41. The outer wall of the clamping rod 41 is fixedly connected to the spring 2 42 and the pull rod 43. The end of the spring 2 42 away from the clamping rod 41 is fixedly connected to the inner wall of the sliding seat 40. The pull rod 43 passes through the sliding seat 40 and is slidably connected to the sliding seat 40.

[0032] When the rotating wheel 21 rotates, the bidirectional screw 22 fixedly connected thereto rotates synchronously. It should be noted that the moving blocks 24 are provided with two groups of the same color. When the bidirectional screw 22 rotates, the two groups of moving blocks 24 will move to both sides. In this process, the support rod 25 will lift the lifting platform 3, thereby realizing the height adjustment of the lifting platform 3. At the same time, the ratchet 23 fixedly connected to the bidirectional screw 22 rotates synchronously. At this time, the ratchet 23 will squeeze the clamping rod 41, so that the clamping rod 41 slides into the sliding seat 40, and the spring 2 42 undergoes elastic deformation. When the pressure of the ratchet 23 on the clamping rod 41 disappears, the clamping rod 41 will limit the ratchet 23 again under the elastic force of the spring 2 42 to prevent the lifting platform 3 from sliding.

[0033] Further, the inner wall of the supporting leg 1 is slidably connected with a telescopic rod 11, the output end of the telescopic rod 11 is fixedly connected to the lifting platform 3, one end of a spring 12 is fixedly connected to the outside of the telescopic rod 11, the other end of the spring 12 is fixedly connected to the inner wall of the supporting leg 1, the outer wall of the supporting leg 1 is hinged with a hinged rod 13 and a rotating plate 15, the hinged rod 13 is penetrated by a horizontal axis 18 away from the supporting leg 1 and is rotatably connected to the horizontal axis 18, the horizontal axis 18 penetrates a hinged rod 2 14 and is rotatably connected to the hinged rod 2 14, the end of the hinged rod 2 14 away from the horizontal axis 18 is hinged to the rotating plate 15, the bottom of the telescopic rod 11 is hinged with a hinged rod 3 19, the end of the hinged rod 3 19 away from the telescopic rod 11 is hinged with a sliding block 17, the sliding block 17 is sleeved with a rotating sleeve 16, and the rotating sleeve 16 is rotatably connected to the horizontal axis 18;

[0034] When the lifting platform 3 is subjected to pressure, the telescopic rod 11 will slide downward in the supporting leg 1, and the spring 1 12 will be elastically deformed. In this process, the hinged rod 3 19 will squeeze the sliding block 17, so that the sliding block 17 will move, and the rotating sleeve 16 sleeved with the sliding block 17 will move synchronously. At this time, the horizontal axis 18 will apply a force to the hinged rod 1 13 and the hinged rod 2 14, so that the hinged rod 1 13 and the hinged rod 2 14 will rotate. When the hinged rod 2 14 rotates, the rotating plate 15 will be subjected to the force of the hinged rod 2 14, so that it will flip. It should be noted that Figure 1 , Figure 2 The state shown in FIG. 1 is when the lifting platform 3 is under pressure.

[0035] In the utility model, during use, when the staff stands on the lifting platform 3, the telescopic rod 11 will slide downward in the supporting leg 1, and at the same time, the articulated rod three 19 will exert a force on the sliding block 17, so that the sliding block 17 drives the rotating sleeve 16 to move, and the horizontal axis 18 will exert a force on the articulated rod one 13 and the articulated rod two 14, so that the articulated rod one 13 and the articulated rod two 14 rotate, and when the articulated rod two 14 rotates, the rotating plate 15 will be subjected to the force of the articulated rod two 14, so that it flips over, thereby supporting the device, and then the rotating wheel 21 is rotated. At this time, the two groups of moving blocks 24 will move to both sides. In this process, the support rod 25 will lift the lifting platform 3, so as to adjust the height of the lifting platform 3.

[0036] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A safety frame for engineering construction, comprising a support leg (1), characterized in that: A lifting platform (3) is provided above the support leg (1); a cross bar (4) is fixedly connected to the outer wall of the support leg (1); a lifting device (2) is provided on the cross bar (4); and the lifting device (2) comprises: A bidirectional screw (22), wherein the bidirectional screw (22) penetrates the cross bar (4) and is rotationally connected to the cross bar (4); A rotating wheel (21), wherein the rotating wheel (21) is fixedly connected to the outer wall of the bidirectional screw (22); A ratchet wheel (23), wherein the ratchet wheel (23) is penetrated by the bidirectional screw rod (22) and is fixedly connected to the bidirectional screw rod (22); and a moving block (24), wherein the moving block (24) is penetrated by the bidirectional screw (22) and is threadedly connected to the bidirectional screw (22).

2. A safety frame for engineering construction according to claim 1, characterized in that: The moving block (24) is penetrated by a guide rod (26) and is slidably connected to the guide rod (26); the guide rod (26) is fixedly connected to the inner wall of the cross bar (4); a support rod (25) is hingedly connected to the outer wall of the moving block (24); and one end of the support rod (25) away from the moving block (24) is hingedly connected to the lifting platform (3).

3. The safety frame for engineering construction according to claim 1, characterized in that: The outer wall of the cross bar (4) is fixedly connected to a slide seat (40), the slide seat (40) is slidably connected to a clamping rod (41), the outer wall of the clamping rod (41) is fixedly connected to a spring 2 (42) and a pull rod (43), one end of the spring 2 (42) away from the clamping rod (41) is fixedly connected to the inner wall of the slide seat (40), and the pull rod (43) passes through the slide seat (40) and is slidably connected to the slide seat (40).

4. The safety frame for engineering construction according to claim 1, characterized in that: The inner wall of the support leg (1) is slidably connected to a telescopic rod (11), the output end of the telescopic rod (11) is fixedly connected to the lifting platform (3), the outside of the telescopic rod (11) is fixedly connected to one end of a spring (12), and the other end of the spring (12) is fixedly connected to the inner wall of the support leg (1).

5. The safety frame for engineering construction according to claim 1, characterized in that: The outer wall of the support leg (1) is hinged with a hinge rod 1 (13) and a rotating plate (15); the hinge rod 1 (13) is penetrated by a transverse axis (18) at a point away from the support leg (1) and is rotatably connected to the transverse axis (18); the transverse axis (18) penetrates hinge rod 2 (14) and is rotatably connected to hinge rod 2 (14); the hinge rod 2 (14) is hinged at one end away from the transverse axis (18) and is rotatably connected to the rotating plate (15).

6. A safety frame for engineering construction according to claim 4, characterized in that: The bottom of the telescopic rod (11) is hinged with a hinged rod three (19), one end of the hinged rod three (19) away from the telescopic rod (11) is hinged with a sliding block (17), the sliding block (17) is sleeved with a rotating sleeve (16), and the rotating sleeve (16) is rotatably connected to the transverse shaft (18).

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