Lifting device for ventilation system installation engineering

Abstract

The utility model discloses a ventilation system installation engineering lifting device which comprises a base, lifting auxiliary rods are installed on the upper surface of the base in pairs, a supporting plate is installed at the top ends of the lifting auxiliary rods, a lifting mechanism is installed between the supporting plate and the base, and an anti-falling fence is installed on the upper surface of the supporting plate. A protective plate is fixedly installed on the upper surface of the supporting plate, a protective fence is rotationally connected to the anti-falling fence, and a switching mechanism is connected between one end of the protective fence and the protective plate. According to the lifting device for ventilation system installation engineering, the risk that workers fall in the lifting process is effectively prevented through the anti-falling fence and the protection plate, in addition, stable locking and convenient opening of the protection fence are achieved through cooperation of a switch rod, a positioning hole, a clamping base and a limiting rod, the protection fence can be flexibly opened and closed, and the safety of the workers is improved. And meanwhile, the safety is ensured, and the safety is further enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation ducts, in particular to a lifting device for ventilation system installation engineering. Background Art

[0002] Ventilation ducts are metal or composite pipes used in ventilation and air-conditioning projects in industrial and civil buildings. They are used to allow air to circulate. Currently, ventilation facilities need to be well prepared during the construction of underground projects. Since underground projects are closed buildings, there are only some exits for ventilation. There is no sunlight all year round, and a lot of water vapor and some harmful gases will be generated inside. If they are not discharged in time, it will cause harm to underground workers, so ventilation ducts need to be installed for ventilation.

[0003] The Chinese patent application with application number CN202120082637.5 discloses a lifting device for decoration engineering, which relates to the field of decoration engineering technology, including a base, a support frame is provided in the middle of the top of the base, and a universal wheel is provided at the bottom of the base, vertical rods are symmetrically provided on both sides of the support frame, and a driving motor is provided on one side of the top of the support frame, a coupling is provided at the bottom of the driving motor, a first rotating shaft is provided on one side of the bottom inner wall of the support frame, and a second rotating shaft is provided on the other side of the bottom inner wall of the support frame. In the present utility model, a driving motor is provided to drive the driving wheel and the driven wheel to rotate so that the first rotating shaft and the second rotating shaft are rotated, thereby causing the bearing platform to move in the vertical direction of the vertical rod. This operation is simple, and the counterweight block and the support plate are provided to make the overall equipment more stable, safety issues are guaranteed, and the loading capacity is improved. In addition, this device is small in size and more convenient to move.

[0004] However, the existing lifting device still has some defects. During the lifting process, shaking may occur, affecting the stability of people standing during the lifting process, which may bring certain dangers to people. Utility Model Content

[0005] In response to the above-mentioned deficiencies in the prior art, the present invention provides a lifting device for a ventilation system installation project, the purpose of which is to solve the problem that shaking may occur during the lifting process, affecting the stability of people standing during the lifting process, and posing certain dangers to people.

[0006] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is as follows: a lifting device for ventilation system installation engineering, comprising a base, the upper surface of the base is equipped with lifting auxiliary rods in pairs, the top of the lifting auxiliary rods is equipped with a support plate, a lifting mechanism is installed between the support plate and the base, an anti-fall fence is installed on the upper surface of the support plate, a protective plate is fixedly installed on the upper surface of the support plate, a protective fence is rotatably connected to the anti-fall fence, a switch mechanism is connected between one end of the protective fence and the protective plate, protective mechanisms are installed at both ends of the lifting mechanism, and a pushing handle is welded to one end of the base;

[0007] The lifting mechanism includes a lifting frame 1 fixedly hinged to the upper surface of the base, a slide rail 1 fixedly installed on one side of the lifting frame 1, a lifting frame 2 slidably connected to the slide rail 1, a connecting rod installed on the lifting frame 2, a hinged seat installed on the base, a connecting seat rotatably connected to the connecting rod, an electric push rod rotatably connected between the hinged seat and the connecting seat, a slide rail 2 welded to the bottom end of the support plate, the top end of the lifting frame 1 slides on the slide rail 2, and the top end of the lifting frame 2 is movably connected to the bottom end of the support plate.

[0008] Furthermore, the switch mechanism includes a switch rod fixedly installed on the top of one side of the guardrail, a positioning hole is opened at the top of the switch rod, a holder is installed on the front side of the guardrail, a limit rod is sleeved on the holder, and the bottom end of the limit rod is plugged into the positioning hole.

[0009] Furthermore, the protection mechanism includes a pair of protection rods fixed on the upper surface of the base, a protection frame is sleeved on the protection rods, and a buffer spring is sleeved on the protection frame.

[0010] Furthermore, a handle is installed on the front side of the guardrail.

[0011] Furthermore, universal wheels are fixedly mounted on the lower surface of the base.

[0012] Furthermore, the slide rail 1 and the slide rail 2 have the same structure.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides a lifting device for ventilation system installation engineering, which effectively prevents the risk of workers falling during the lifting process by providing an anti-fall fence and a protective plate. In addition, through the cooperation of the switch rod, the positioning hole, the card seat and the limit rod, the guardrail is firmly locked and conveniently opened. It can be flexibly opened and closed, which facilitates the entry and exit of personnel while ensuring safety, thereby further enhancing safety.

[0015] The utility model relates to a lifting device for a ventilation system installation project. An electric push rod is used as a power source. The transmission is transmitted through a connecting rod and a connecting seat, making the lifting action smoother and more controllable, effectively avoiding shaking and impact during the lifting process. At the same time, the lifting frame 1 and the lifting frame 2 slide smoothly through the slide rail 1 and the slide rail 2, ensuring stability during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of a ventilation system installation engineering lifting device of the utility model;

[0017] Figure 2 This is an enlarged view of the lifting mechanism of a ventilation system installation engineering lifting device of the utility model;

[0018] Figure 3 This is an enlarged view of the anti-falling fence of a lifting device for installing a ventilation system in the utility model;

[0019] Figure 4 This is an enlarged view of the guardrail of a ventilation system installation engineering lifting device of the utility model;

[0020] Figure 5 This is an enlarged view of the protective mechanism of a ventilation system installation engineering lifting device of the utility model;

[0021] Figure 6 A ventilation system installation engineering lifting device of the utility model Figure 3 Enlarged view of point A in the middle.

[0022] Reference table of accompanying symbols:

[0023] 1. Base; 2. Lifting auxiliary rod; 3. Lifting mechanism; 301. Lifting frame 1; 302. Slide rail 1; 303. Lifting frame 2; 304. Connecting rod; 305. Articulated seat; 306. Connecting seat; 307. Electric push rod; 308. Slide rail 2; 4. Support plate; 5. Anti-fall bar; 6. Protective plate; 7. Protective fence; 701. Handle; 8. Switch mechanism; 801. Switch rod; 802. Card seat; 803. Limit rod; 804. Positioning hole; 9. Protective mechanism; 901. Protective rod; 902. Protective frame; 903. Buffer spring; 10. Push handle; 11. Universal wheel. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0025] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0026] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0027] like Figures 1 to 6 As shown, a lifting device for ventilation system installation engineering includes a base 1, with lifting auxiliary rods 2 installed in pairs on the upper surface of the base 1, a support plate 4 installed on the top of the lifting auxiliary rod 2, a lifting mechanism 3 installed between the support plate 4 and the base 1, an anti-fall fence 5 installed on the upper surface of the support plate 4, a protective plate 6 fixedly installed on the upper surface of the support plate 4, a protective fence 7 rotatably connected to the anti-fall fence 5, a switch mechanism 8 connected between one end of the protective fence 7 and the protective plate 6, protective mechanisms 9 installed at both ends of the lifting mechanism 3, and a pushing handle 10 welded to one end of the base 1;

[0028] The lifting mechanism 3 includes a lifting frame 1 301 fixedly hinged on the upper surface of the base 1, a slide rail 1 302 fixedly installed on one side of the lifting frame 1 301, a lifting frame 2 303 slidably connected to the slide rail 1 302, a connecting rod 304 installed on the lifting frame 2 303, an articulated seat 305 installed on the base 1, a connecting seat 306 rotatably connected to the connecting rod 304, an electric push rod 307 rotatably connected between the articulated seat 305 and the connecting seat 306, a slide rail 2 308 welded to the bottom end of the support plate 4, the top end of the lifting frame 1 301 slides on the slide rail 2 308, and the top end of the lifting frame 2 303 is movably connected to the bottom end of the support plate 4.

[0029] Through the above solution, the telescopic movement of the electric push rod 307 can drive the second lifting frame 303 to slide on the first slide rail 302, thereby realizing the lifting and lowering of the support plate 4.

[0030] The switch mechanism 8 includes a switch rod 801 fixedly mounted on the top of one side of the guardrail 7. A positioning hole 804 is provided at the top of the switch rod 801. A holder 802 is installed on the front side of the guardrail 7. A limiting rod 803 is sleeved on the holder 802. The bottom end of the limiting rod 803 is plugged into the positioning hole 804.

[0031] Through the above solution, when the guardrail 7 needs to be closed, the bottom end of the limit rod 803 is inserted into the positioning hole 804 to fix the guardrail 7 in the closed state, which can be flexibly opened and closed, further enhancing safety.

[0032] The protection mechanism 9 includes a pair of protection rods 901 fixed on the upper surface of the base 1 , a protection frame 902 is sleeved on the protection rods 901 , and a buffer spring 903 is sleeved on the protection frame 902 .

[0033] Through the above solution, when the lifting device is subjected to an unexpected impact, the buffer spring 903 can absorb part of the impact force, thereby protecting the lifting mechanism and the operator from injury.

[0034] A handle 701 is installed on the front side of the guardrail 7.

[0035] Through the above solution, the handle 701 is convenient for the operator to firmly grasp during the lifting process, thereby improving the safety and convenience of the operation.

[0036] Universal wheels 11 are fixedly mounted on the lower surface of the base 1 .

[0037] The slide rail 1 302 and the slide rail 2 308 have the same structure.

[0038] The use process of this utility model is as follows: first, activate the electric push rod 307 to start it. The telescopic movement of the electric push rod 307 drives the connecting rod 304 and the connecting seat 306 to rotate, thereby driving the second lifting frame 303 to slide on the slide rail 1 302 to adjust the height of the support plate 4. When the support plate 4 rises to the required height, the electric push rod 307 automatically stops working. During the lifting process or when the support plate 4 is in the high position, the operator should use the guardrail 7 for safety protection. The guardrail 7 is fixed in the open or closed state by the switch mechanism 8 (such as inserting the limit rod 803 into the positioning hole 804) to ensure that the operator does not accidentally fall.

[0039] The above description is only a preferred embodiment of the present utility model patent and is not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the scope of protection of the present utility model patent.

Claims

1. A lifting device for ventilation system installation engineering, characterized in that: The utility model comprises a base (1), wherein a pair of lifting auxiliary rods (2) are installed on the upper surface of the base (1), a support plate (4) is installed on the top of the lifting auxiliary rod (2), a lifting mechanism (3) is installed between the support plate (4) and the base (1), an anti-falling fence (5) is installed on the upper surface of the support plate (4), a protective plate (6) is fixedly installed on the upper surface of the support plate (4), a protective fence (7) is rotatably connected to the anti-falling fence (5), a switch mechanism (8) is connected between one end of the protective fence (7) and the protective plate (6), protective mechanisms (9) are installed at both ends of the lifting mechanism (3), and a pushing handle (10) is welded to one end of the base (1); The lifting mechanism (3) comprises a lifting frame (301) fixedly hinged on the upper surface of the base (1), a slide rail (302) fixedly installed on one side of the lifting frame (301), a lifting frame (303) slidably connected to the slide rail (302), a connecting rod (304) installed on the lifting frame (303), a hinge seat (305) installed on the base (1), a connecting seat (306) rotatably connected to the connecting rod (304), an electric push rod (307) rotatably connected between the hinge seat (305) and the connecting seat (306), a slide rail (308) welded to the bottom end of the support plate (4), the top end of the lifting frame (301) slides on the slide rail (308), and the top end of the lifting frame (303) is movably connected to the bottom end of the support plate (4).

2. A lifting device for ventilation system installation engineering according to claim 1, characterized in that: The switch mechanism (8) comprises a switch rod (801) fixedly mounted on the top of one side of the guardrail (7); a positioning hole (804) is provided at the top end of the switch rod (801); a clamping seat (802) is mounted on the front side of the guardrail (7); a limiting rod (803) is sleeved on the clamping seat (802); and the bottom end of the limiting rod (803) is plugged and connected to the positioning hole (804).

3. A lifting device for ventilation system installation engineering according to claim 1, characterized in that: The protection mechanism (9) comprises a pair of protection rods (901) fixed on the upper surface of the base (1); a protection frame (902) is sleeved on the protection rods (901); and a buffer spring (903) is sleeved on the protection frame (902).

4. A lifting device for ventilation system installation engineering according to claim 1, characterized in that: A handle (701) is installed on the front side of the guardrail (7).

5. The lifting device for ventilation system installation engineering according to claim 1, characterized in that: A universal wheel (11) is fixedly mounted on the lower surface of the base (1).

6. The lifting device for ventilation system installation engineering according to claim 1, characterized in that: The slide rail 1 (302) and the slide rail 2 (308) have the same structure.

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