A toothed double-arm lift and roof ventilator

Abstract

The utility model discloses a toothed double-arm lifter, comprising a power device, a sleeve rod, a lifting rod, a toothed lifting arm, a transmission rod and a first ear plate; a lifting rod is arranged in each relatively arranged sleeve rod, the tail of the toothed lifting arm can be rotatably installed through the lower part of the lifting rod and the sleeve rod, two bearings are transversely installed on the inner wall of the sleeve rod, the tail of the toothed lifting arm is located between the two bearings, the ends of the two toothed lifting arms are arranged oppositely, and the toothed discs at the ends are meshed, and a first ear plate is connected to the lower part of one of the toothed lifting arms, and the first ear plate is connected to the power device through the transmission rod. The lifting process of the utility model is very smooth, can withstand a large load, can meet the load requirements of the roof ventilator for the lifting equipment, has a compact structure, occupies a small space, and is easy to maintain. The utility model also provides a roof ventilator.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction, and in particular relates to a toothed double-arm lifter. Background Art

[0002] With the rapid development of industrialization, the scale of industrial plants has continued to expand, and the requirements for ventilation systems have become increasingly higher. Traditional ventilation systems often have problems such as poor ventilation effect, high energy consumption, and difficult maintenance, and cannot meet the ventilation needs of modern industrial plants.

[0003] Therefore, the lifting type factory roof ventilator came into being. It combines modern mechanical technology and ventilation principles, and realizes the opening and closing of the vents through the lifting mechanism, so as to achieve precise control of the ventilation volume. This ventilator can not only automatically adjust the ventilation volume according to the temperature and humidity changes inside the factory, but also effectively prevent the damage to the ventilation equipment in bad weather, thus improving the stability and reliability of the ventilation system.

[0004] The current roof ventilators basically use a single-rod lifting mechanism to achieve the lifting of the top valve plate, but this single-rod lifting mechanism has the following disadvantages:

[0005] 1. Stability issues: The single-rod lifting mechanism may not be stable enough, especially in strong winds or bad weather conditions, which may cause the ventilator to shake or tilt, thus affecting its normal operation and service life.

[0006] 2. Occupied space: The design of the single-rod lifting mechanism usually requires a certain amount of roof space, which may be a problem for roof environments with limited space. At the same time, this design may also affect the aesthetics and overall layout of the roof.

[0007] 3. Difficult maintenance: Since the single-rod lifting mechanism is located at the lower part of the middle baffle of the roof ventilator, maintenance and inspection are relatively difficult. Professionals are required to perform high-altitude operations, which increases maintenance costs and operational risks.

[0008] 4. Lifting efficiency issues: Column-type lifting mechanisms may have inefficiencies during the lifting process, especially in the case of large or heavy ventilators, which may result in slow or unstable lifting speeds. Summary of the invention

[0009] The utility model aims to provide a toothed double-arm lifter for a roof ventilator to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a toothed double-arm lifter, comprising a power device, a sleeve rod, a lifting rod, a toothed lifting arm, a transmission rod and a first ear plate; a lifting rod is provided in each relatively arranged sleeve rod, the tail of the toothed lifting arm is rotatably installed through the lower part of the lifting rod and the sleeve rod, two bearings are horizontally installed on the inner wall of the sleeve rod, the tail of the toothed lifting arm is located between the two bearings, the ends of the two toothed lifting arms are arranged opposite to each other, and the toothed discs at the ends are meshed, and the first ear plate is connected to the lower part of one of the toothed lifting arms through the transmission rod, and the first ear plate is connected to the power device through the transmission rod.

[0011] Preferably, a waist groove is provided at the connection between the toothed lifting arm and the ear plate, and the length of the waist groove is consistent with the lifting height of the top rain shield plate.

[0012] Preferably, the power device is an electric push rod, a second ear plate is movably connected to the front end of the electric push rod, and the second ear plate and the lower end of the first ear plate are fixedly connected to the transmission rod.

[0013] Preferably, an ear plate limit block is installed on the transmission rod.

[0014] Furthermore, the utility model provides a roof ventilator, comprising the toothed double-arm lifter as described above.

[0015] Technical effects and advantages of the utility model:

[0016] 1. The ear plate is pushed by the power device, and the ear plate drives the toothed lifting arm to rotate. The toothed disc is engaged for transmission, which has precise transmission ratio and stable transmission performance. Therefore, the lifting process is very smooth, avoiding the bumps or jitters that may occur in other transmission methods.

[0017] 2. The toothed lifting arm can withstand a large load and can meet the load requirements of the roof ventilator for lifting equipment. Whether it is lightweight or heavy equipment, this lifter can provide reliable lifting support.

[0018] 3. The structure of this toothed double-arm lifter is relatively compact and occupies little space, which makes the roof ventilator lifting equipment more flexible in design and installation, able to adapt to different space restrictions, and easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] In the figure: 1 power device, 2 sets of rods, 3 lifting rods, 4 toothed lifting arms, 5 transmission rods, 6 first ear plates, 7 second ear plates, 8 ear plate limit blocks, 11 fixed seats, 12 electric push rods, 21 bearings, and 61 waist grooves. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figure 1 A specific embodiment of a toothed double-arm lifter of the utility model is shown: it includes a power device 1, a sleeve rod 2, a lifting rod 3, a toothed lifting arm 4, a transmission rod 5 and a first ear plate 6; a lifting rod 3 is provided in each relatively arranged sleeve rod 2, the tail of the toothed lifting arm 4 is rotatably installed through the lower part of the lifting rod 3 and the sleeve rod 2, two bearings 21 are transversely installed on the inner wall of the sleeve rod 2, the tail of the toothed lifting arm 4 is located between the two bearings 21 to protect the surface of the toothed lifting arm 4 from damage during the rotation process, the ends of the two toothed lifting arms 4 are arranged opposite to each other, and the toothed discs at the ends are meshed, and the lower part of one of the toothed lifting arms 4 is connected to the first ear plate 6, and the first ear plate 6 is connected to the power device 1 through the transmission rod 5;

[0023] A waist groove 61 is provided at the connection between the toothed lifting arm 4 and the first ear plate 6. The length of the waist groove 61 is consistent with the lifting height of the top rain shield. The design of the waist groove 61 enables the toothed lifting arm 4 to move along a predetermined path during the lifting process, thereby accurately controlling the lifting height of the top rain shield and ensuring the accuracy and stability of the lifting process.

[0024] The power device 1 is an electric push rod 12, and a second ear plate 7 is movably connected to the front end of the electric push rod 12. The second ear plate 7 and the lower end of the first ear plate 6 are fixedly connected to the transmission rod 8. The electric push rod 12 is fixedly installed on the square tube of the ventilator through a fixed seat 11. The second ear plate 7 is pushed by the electric push rod 12, and the second ear plate 7 drives the first ear plate 6 through the transmission rod 5, thereby realizing the linkage of the two ear plates.

[0025] An ear plate limit block 8 is installed on the transmission rod 5 to limit the rotation range of the ear plate and ensure that it moves within a predetermined angle. This limitation helps prevent the ear plate from excessively rotating and avoids structural damage or safety accidents caused by exceeding the safety range.

[0026] The electric push rod pushes the second ear plate, and the second ear plate drives the first ear plate through the transmission rod. The first ear plate pulls the end of the toothed lifting arm to rotate clockwise or counterclockwise, and the tail of the toothed lifting arm rotates counterclockwise or clockwise, and drives the sleeve plate to move downward or upward, and finally the valve plate installed on the top of the sleeve is lifted and lowered.

[0027] Furthermore, in order to solve the above technical problems, the present invention provides a roof ventilator, including the toothed double-arm lifter in the above embodiment.

[0028] The applicant further declares that the present invention illustrates the implementation method and device structure of the present invention through the above embodiments, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above methods and structures to be implemented. Those skilled in the art should understand that any improvement to the present invention, equivalent replacement of the implementation method selected by the present invention, addition of steps, selection of specific methods, etc., all fall within the scope of protection and disclosure of the present invention.

[0029] The present invention is not limited to the above-mentioned embodiments, and all methods that use structures and methods similar to the present invention to achieve the purpose of the present invention are within the protection scope of the present invention.

Claims

1. A toothed double-arm lifter, characterized in that: The invention comprises a power device (1), a sleeve rod (2), a lifting rod (3), a toothed lifting arm (4), a transmission rod (5) and a first ear plate (6); a lifting rod (3) is provided in each sleeve rod (2) arranged opposite to each other; the tail of the toothed lifting arm (4) is rotatably installed through the lower part of the lifting rod (3) and the sleeve rod (2); two bearings (21) are transversely installed on the inner wall of the sleeve rod (2); the tail of the toothed lifting arm (4) is located between the two bearings (21); the ends of the two toothed lifting arms (4) are arranged opposite to each other, and the toothed discs at the ends are meshed with each other; the lower part of one of the toothed lifting arms (4) is connected to the first ear plate (6); the first ear plate (6) is connected to the power device (1) through the transmission rod (5).

2. A toothed double-arm lifter according to claim 1, characterized in that: A waist groove (61) is provided at the connection between the toothed lifting arm (4) and the first ear plate (6), and the length of the waist groove (61) is consistent with the lifting height of the top rain shield plate.

3. A toothed double-arm lifter according to claim 1, characterized in that: The power device (1) is an electric push rod (12), a second ear plate (7) is movably connected to the front end of the electric push rod (12), and the lower ends of the second ear plate (7) and the first ear plate (6) are fixedly connected to the transmission rod (5).

4. A toothed double-arm lifter according to claim 3, characterized in that: An ear plate limiting block (8) is arranged on the transmission rod (5).

5. A roof ventilator, characterized in that: It comprises a toothed double-arm lift as claimed in any one of claims 1 to 4.

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