Novel electric push rod power-assisted safe and labor-saving cover plate

Abstract

A novel electric push rod power-assisted safe and labor-saving cover plate comprises a frame plate and bottom plates, the two bottom plates are symmetrically installed on the two sides of the frame plate, balancing devices are evenly distributed on the inner faces of the bottom plates, a lower supporting plate is installed on the inner side of the bottom of the frame plate, and an upper supporting plate is installed on the inner faces of the bottom plates. The two ends of the electric push rod device are connected with the lower supporting plate and the upper supporting plate through pin shafts respectively. The utility model has the advantages of compact structure, scientific and reasonable design, large thrust, high transmission efficiency and stable system; the reasonable cooperation of the push rod and the gear mechanism ensures the balance of the force in the opening process of the cover plate, avoids the overload damage of the push rod in the operation process, facilitates the single-person opening of the lifting hole cover plate, is wide in application range, and has remarkable social and economic benefits.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cover plate, in particular to a novel electric push rod power-assisted safe labor-saving type cover plate. BACKGROUND

[0002] At present, the safe labor-saving type cover plate structure is mostly mechanical structure or electric structure. But both structures have advantages and disadvantages. The mechanical structure is firm and reliable, does not need daily maintenance, but needs several people to cooperate to open each time, which is time-consuming. The electric structure cover plate can save labor cost, but the structure is complex and the daily maintenance cost is large. With the continuous development and transformation and upgrading of manufacturing industry, the economy of electric machinery is more prominent, which can save a lot of expenses and cost in the use process of enterprises, therefore, the demand for electric products is increasing. However, there is no electric power-assisted cover plate with safety labor-saving and resource-saving on the market at present, therefore, the existing cover plate structure and design need to be further improved and innovated to meet the market demand, but there is no relevant public report so far. SUMMARY

[0003] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present application is to provide a novel electric push rod power-assisted safe labor-saving type cover plate, which can effectively solve the problem that there is no novel cover plate with labor-saving and resource-saving on the market.

[0004] In order to achieve the above purpose, the technical scheme solved by the utility model is a novel electric push rod power-assisted safe labor-saving type cover plate, which comprises a frame plate and a bottom plate, two bottom plates are symmetrically arranged on both sides of the frame plate, balance devices are uniformly arranged on the inner surfaces of the bottom plates, a lower support plate is arranged on the inner side of the bottom of the frame plate, an upper support plate is arranged on the inner surface of the bottom plate, and the two ends of an electric push rod device are connected with the lower support plate and the upper support plate through shafts.

[0005] The utility model has the advantages of compact structure, scientific and reasonable design, large thrust, high transmission efficiency, stable system, reasonable cooperation of the push rod and the gear mechanism, balanced force in the cover plate opening process, avoidance of push rod overload damage in the running process, convenient realization of single-person opening of the hoisting hole cover plate, wide application, and remarkable social and economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 It is the front view of the utility model.

[0007] Figure 2 It is the side view of the utility model.

[0008] Figure 3 It is the front view of the gear device structure of the utility model.

[0009] Figure 4This is a top view (section view) of the gear device structure of this utility model. Detailed Implementation

[0010] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings and specific circumstances.

[0011] As shown in the attached drawings, a novel electric push rod-assisted safety and labor-saving cover plate includes a frame plate and a base plate. Two base plates 6 are symmetrically mounted on both sides of the frame plate 5. Balance devices are evenly distributed on the inner surface of the base plates 6. A lower support plate 4 is mounted on the inner bottom side of the frame plate 5, and an upper support plate 1 is mounted on the inner surface of the base plates 6. The two ends of the electric push rod device 3 are connected to the lower support plate 4 and the upper support plate 1 respectively via pin shafts 2.

[0012] To ensure better implementation results, the balancing device includes an upper support arm 10, a lower support arm 7, a gear device 9, and a counterweight 8. The upper support arm 10 is connected to the inner surface of the base plate 6, and one end is meshed with the gear of the gear device 9 mounted on the frame plate 5. The other gear of the gear device 9 is meshed with one end of the lower support arm 7, and the other end of the lower support arm 7 is equipped with a counterweight 8.

[0013] The gear device includes a gear seat and a gear. The gear seat is an integral structure welded together by a gear base plate 91, two side plates 92 mounted on the gear base plate 91, and a stiffening plate 95 located on the outside of the side plates 92. The gear base plate 91 is mounted on the inner side of the frame plate 5. A first gear 93 and a second gear 94 are respectively meshed between the two side plates 92 via gear shafts. The first gear 93 is connected to the upper support arm 10, and the second gear 94 is connected to the lower support arm 7.

[0014] It should be noted that the electric linear actuator 3 is a commercially available product, such as the SY-A04A electric linear actuator from Wuxi Ouride.

[0015] In practical use, the electric push rod device 3 is installed in the middle of the lower plane of the base plate 6, the upper support plate 1 is installed in the middle of the base plate 6, and the lower support plate 4 is installed on the inner side of the bottom of the frame plate 5. The electric push rod drives the screw through the built-in gear reduction of the DC brushed motor 31, thereby moving the inner tube 32. When the external power supply is connected to the DC motor input line, the positive and negative switches switch to control the forward and reverse rotation of the control electrodes, causing the push rod to rise or fall. The starting force of the push rod rising or falling drives the gear device 9 to rotate, thereby moving the upper support arm 10 and the lower support arm 7 to open and close the cover. The electric push rod has built-in travel limit switches at both ends, which can realize the function of automatic stop when the travel is completed, ensuring that the motor will not burn out. It can also be stopped at any position through the positive and negative switches, with a built-in lock for safety.

[0016] This utility model has a compact structure and a scientific and reasonable design, and has the following advantages compared with the prior art:

[0017] 1. The electric linear actuator has a large thrust, high transmission efficiency, stability, and good self-locking performance;

[0018] 2. The proper coordination between the electric push rod and the hinge device ensures the balance of force during the opening of the cover plate and avoids overload damage to the push rod during operation;

[0019] 3. The electric push rod assist mechanism offers precise control, powerful performance, reliable operation, convenient operation, and high safety. The push rod specifications and quantity can be selected based on the weight of the base plate to meet the needs of different sized hole covers. This solves the problems of requiring multiple people to open the cover on-site and the high maintenance costs of electric cover plates; it also facilitates single-person opening of lifting hole covers, has wide applicability, and offers significant social and economic benefits.

[0020] It should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any person skilled in the art who can make changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model's technical solution shall fall within the protection scope of the present utility model.

Claims

1. A novel electric push rod-assisted safety and labor-saving cover plate, comprising a frame plate and a base plate, wherein two base plates (6) are symmetrically mounted on both sides of the frame plate (5), characterized in that, The bottom plate (6) is evenly equipped with balancing devices on its inner surface. The bottom inner side of the frame plate (5) is equipped with a lower support plate (4). The inner surface of the bottom plate (6) is equipped with an upper support plate (1). The two ends of the electric push rod device (3) are connected to the lower support plate (4) and the upper support plate (1) respectively via pin shafts (2).

2. The novel electric push rod-assisted safety and labor-saving cover plate according to claim 1, characterized in that, The balancing device includes an upper support arm (10), a lower support arm (7), a gear device (9), and a counterweight (8). The upper support arm (10) is connected to the inner surface of the base plate (6), and one end is meshed with the gear of the gear device (9) mounted on the frame plate (5). The other gear of the gear device (9) is meshed with one end of the lower support arm (7), and the other end of the lower support arm (7) is equipped with a counterweight (8).

3. The novel electric push rod-assisted safety and labor-saving cover plate according to claim 2, characterized in that, The gear device includes a gear seat and a gear. The gear seat is an integral structure welded together by a gear base plate (91), two side plates (92) mounted on the gear base plate (91), and a stiffening plate (95) located on the outside of the side plates (92). The gear base plate (91) is mounted on the inner side of the frame plate (5). The two side plates (92) are respectively connected by a gear shaft to a meshing first gear (93) and a second gear (94). The first gear (93) is connected to the upper support arm (10), and the second gear (94) is connected to the lower support arm (7).

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