CN204958332U - Manhole cover opener - Google Patents

Abstract

The utility model relates to a well cover opener comprising: a hydraulic power device, a lifting device, a suspension device and a moving device. The basic structure of the lifting device is a four-bar linkage mechanism. The four-bar linkage mechanism is divided into the upper link of the lifting arm and the lower link of the lifting arm. The meshing gear of the upper link and the lower link of the lifting arm are meshed and connected with each other, and the upper link of the lifting arm is hinged with the lower link of the lifting arm. The fine-tuning nut is connected to the hook through the screw pair, and the fine-tuning nut is connected to the hook chute through the moving pair to adjust the distance between the two hooks. The moving device is a universal wheel mechanism, and four thrusters are respectively installed on the four corners of the frame chassis. Universal wheel, the semi-automatic manhole cover opener provided by the utility model can realize the opening and maintenance operations of manhole covers of underground public and factory facilities such as water conservancy, communication, electric power, gas, heat, fire protection, sanitation, etc. use value.

Description

A manhole cover opener

technical field

The utility model relates to a well cover opener, in particular to a well cover opener.

Background technique

With the overall development of my country's economy, the construction and development of urban infrastructure is unprecedented, especially underground public and factory facilities such as water conservancy, communication, electricity, gas, heat, fire protection, sanitation, etc. need to install and repair various types of manhole covers. The workload of the opening operation of manhole covers is very large, especially when it involves the maintenance of important pipelines such as national defense or the occurrence of emergencies, the manhole covers need to be opened quickly. However, due to the limitations of current technical means, the opening operation cannot be carried out in time, seriously Affect the construction progress and leave some safety hazards.

At present, there are three kinds of traditional manhole cover opening tools in our country: iron hook, foreign pick and sledgehammer, commonly known as "three major pieces". These three tools correspond to and represent three opening methods: one is to use iron hook to lift the manhole cover; Use a foreign pick to lift the manhole cover; if the first two methods do not work, directly use a sledgehammer to break the manhole cover and carry out destructive demolition (the manhole cover will not be able to continue to be used after the demolition, resulting in a waste of resources). The traditional opening method is not only time-consuming and laborious, but also cannot be opened for some difficult-to-open manhole covers (the reasons for which are difficult to open will be explained in detail later), and such unopenable manhole covers will seriously affect the construction progress. For the problem of manhole cover, the project team designed and developed this semi-automatic manhole cover opener.

Utility model content

The utility model mainly aims at the above problems, and provides a semi-automatic manhole cover opener provided by the utility model, which can realize the opening and maintenance operations of manhole covers of underground public and factory facilities such as water conservancy, communication, electric power, gas, heat, fire protection, and sanitation. The manhole cover opening device with high development and utilization value, the technical scheme adopted is as follows:

A manhole cover opener includes: a hydraulic power device, a lifting device, a suspension device and a moving device. The structure is a four-bar linkage mechanism. The four-bar linkage mechanism is divided into the upper link of the lifting arm and the lower link of the lifting arm. The gear and the lower link of the lifting arm are meshed and connected with each other. The upper link of the lifting arm is hinged with the lower link of the lifting arm. The pair is connected with the hook, and the fine adjustment nut is connected with the hook chute through the moving pair to adjust the distance between the two hooks. The moving device is a universal wheel mechanism, and four thrust universal wheels are respectively installed on the four corners of the frame chassis.

On the basis of the above-mentioned technical scheme, the length of each rod of the four connecting rods is 400mm, the section is U-shaped channel steel, and the width of the channel steel is 80mm. Combining the principle of rotating movement and gasket load-bearing, the load-bearing gasket of the rotating nut slides horizontally in the chute of the hook frame, and the sliding range of the two hooks is between 150mm-470mm.

On the basis of the above technical scheme, the universal wheels and the chassis are welded, the frame base and the load-bearing beam are welded with No. 5 angle iron, the load-bearing beam and the chassis are connected by hinges, and the hydraulic mechanism and the frame are connected by nuts .

The beneficial effects produced by the utility model are as follows: 1. The semi-automatic manhole cover opener provided by the utility model can realize the opening and maintenance operations of manhole covers of underground public and factory facilities such as water conservancy, communication, electric power, gas, heat, fire protection, and environmental sanitation. Wide, with high development and utilization value.

2. The semi-automatic manhole cover opener provided by the utility model uses hydraulic pressure as the power source, which can provide a strong lifting force, up to 6500N. At the same time, it can be quickly opened by using a high-power foot-operated hydraulic pump, and it only takes 6 seconds to lift the manhole cover by 200mm. , this method can quickly complete the opening operation of the manhole cover.

3. The utility model has a reasonable structure, is stable and reliable, and can be opened and moved for various manhole covers and trench covers in different environments.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is a structural representation of the utility model;

Fig. 3 is a structural representation of the utility model;

Symbol Description

1. Pedal hydraulic pump, 2. Pressure relief knob, 3. Hydraulic oil pipe, 4. Double-acting hydraulic cylinder, 5. Lifting arm upper link, 6. Lifting arm lower link, 7 Lifting arm upper link meshing gear, 8 .Elevating arm lower link meshing gear, 9. Suspension beam, 10. Fine-tuning nut, 11. Hook, 12. Hook chute, 13. Anti-bias bracket, 14. Load-bearing beam, 15. Rack chassis, 16. Hinge , 17. Thrust universal wheel, 18. Traction handle.

detailed description

Below in conjunction with accompanying drawing and example the utility model is described further:

As shown in Figure 1, a well cover opener includes: a hydraulic power device, a lifting device, a suspension device and a mobile device, and the hydraulic power device is composed of a pedal hydraulic pump 1, a double-acting hydraulic cylinder 4, a hydraulic oil pipe 3 and a pressure relief device. Knob 2 and other components, the basic structure of the lifting device is a four-bar linkage mechanism, the four-bar linkage mechanism is divided into the upper link 5 of the lifting arm and the lower link 6 of the lifting arm, the upper link 5 of the lifting arm and the lower link 6 of the lifting arm The symmetrical connecting rod is connected to each other through the meshing gear 7 of the upper link of the lifting arm and the meshing gear 8 of the lower link of the lifting arm. The upper link 5 of the lifting arm is hinged with the lower link 6 of the lifting arm. Groove 2, hook, fine-tuning nut 10 and anti-deflection bracket 13 are made up of four parts, and fine-tuning nut 10 is connected with hook 11 by screw pair, and fine-tuning nut 10 is connected with hook chute 12 by moving pair, adjusts the distance of two hooks, and mobile device is Universal wheel mechanism, on the four corners of frame chassis 15, four thrust universal wheels 17 are respectively installed.

Preferably, the length of each bar of the four connecting rods is 400 mm, the section is U-shaped channel steel, and the width of the channel steel is 80 mm. The fine-tuning nut 10 is welded by a nut with coarse teeth and a load-bearing washer, so that the nut can be rotated and moved and Combining the load-bearing principle of the gasket, the load-bearing gasket of the rotating nut slides horizontally in the chute of the hook frame, and the sliding range of the two hooks is between 150mm-470mm.

Preferably, the universal wheels 3 and the chassis are welded, the frame base and the load-bearing beam are welded with No. 5 angle iron, the load-bearing beam and the frame chassis are connected by hinges, and the hydraulic mechanism and the frame are connected by nuts.

1. The semi-automatic manhole cover opener provided by the utility model can realize the opening and maintenance operations of manhole covers of underground public and factory facilities such as water conservancy, communication, electric power, gas, heat, fire protection, sanitation, etc. It has a wide practical range and has high development and utilization value .

2. The semi-automatic manhole cover opener provided by the utility model uses hydraulic pressure as the power source, which can provide a strong lifting force, up to 6500N. At the same time, it can be quickly opened by using a high-power foot-operated hydraulic pump, and it only takes 6 seconds to lift the manhole cover by 200mm. , this method can quickly complete the opening operation of the manhole cover.

3. The utility model has a reasonable structure, is stable and reliable, and can be opened and moved for various manhole covers and trench covers in different environments.

The utility model has been described above with examples, but the utility model is not limited to the above-mentioned specific embodiments, and any changes or modifications made based on the utility model all belong to the protection scope of the utility model.

Claims (3)

1. a manhole cover opener, it is characterized in that, comprise: hydraulic power unit, jacking system, suspension gear and mobile device, described hydraulic power unit is by riding Hydraulic Pump, double acting hydraulic cylinder, hydraulic oil pipe and pressure release rotary knob member composition, its basic structure of jacking system is four-bar linkage, four-bar linkage is divided into connecting rod and lifting arm lower link on lifting arm, the connecting rod that on lifting arm, connecting rod and lifting arm lower link are symmetrical with it, to be engaged each other with lifting arm lower link engaging gear by connecting rod engaging gear on lifting arm and be connected, connecting rod and lifting arm lower link hinge-connection on lifting arm, suspension gear is by linking up with chute, hook, fine-tuning nut and anti-bias support four part composition, fine-tuning nut is connected with hook by screw pair, fine-tuning nut is connected with hook chute by moving sets, the spacing of adjustment two hook, mobile device is universal wheel mechanism, four thrust cardan wheels have been installed at four angles of rack chassis respectively.

2. a kind of manhole cover opener according to claim 1, it is characterized in that: each bar of described double leval jib is long is 400mm, section is U-type groove steel, channel-section steel is wide is 80mm, fine-tuning nut adopts coarse thread nut and bearing pad to be welded, utilize the in rotary moving and pad load-bearing principle of nut to combine like this, the bearing pad of rotating nut is engraved in hook rack chute and laterally slides, and two hook sliding scales are between 150mm-470mm.

3. a kind of manhole cover opener according to claim 1, it is characterized in that: described cardan wheel, and chassis is welded, gantry base and bearing beam all 5 bugle iron are welded, bearing beam and chassis adopt hinge hinge to connect, and hydraulic gear and rack chassis adopt nut to be connected.