CN105356191B - A kind of simple jacking device - Google Patents

Abstract

The invention discloses a simple jacking device, which comprises a hydraulic jack, a frame, a connecting wrench, a pressure bearing shaft, a jacking spring and a clamp. The bottom of the hydraulic jack is fixed on the frame, and the hydraulic cylinder of the hydraulic jack is fixedly connected to the connecting wrench; There is a track groove on the connecting lever to ensure the longitudinal movement of the pressure bearing shaft; there is a circular track groove on the frame. Under the push of the connecting lever, the pressure bearing shaft moves along the circular track to realize the clamping, pushing and returning of the fixture; the top pressure spring can When the finale moves to the end of the stroke, push the finale to enter the return track. The invention has the advantages of simple manufacture, low cost, and convenient operation and portability. With the help of the invention, the laying of passing ground flat irons and pipes can be completed without damaging the road surface and using large machinery, and the cost is low and the operation is simple.

Description

A simple jacking device

technical field

The invention belongs to the field of machinery, and in particular relates to a simple jacking device, which can be applied to the laying of grounded flat irons and pipes in various projects.

Background technique

In the project, the laying of the grounding grid and the laying of the passing pipes need to be pre-buried in advance before the road construction. The grounding flat iron generally adopts -80*8, and the passing pipes generally use DN50 or DN80 steel pipes. Due to changes in design and drawings, etc., after the completion of pavement construction, it often happens that the pre-buried crossing grounding flat irons and pipes under the road are leaked or laid in the wrong place, resulting in the failure of embedded parts such as grounding flat irons and pipes. In use, it needs to be re-laid, but since the road surface has been completed, only methods such as destroying the road surface, digging, and pipe jacking can be used for construction. It takes time and effort to destroy the road surface and excavate, which brings direct economic losses and may cause irreparable damage to the road surface, and because the pipe jacking process is complicated, large-scale machinery is required, and the cost is high.

Contents of the invention

In order to solve the above problems, the present invention designs and manufactures a simple jacking device. With its simple, lightweight and effective structure, it can manually and conveniently place the grounded flat iron or steel pipe (hereinafter referred to as Referred to as objects) over the road.

The technical scheme adopted in the present invention is: a simple jacking device, including a hydraulic jack, a frame, a connecting lever, a pressure bearing shaft, a top pressure spring and a clamp, the bottom of the hydraulic jack is fixed on the frame, and the hydraulic cylinder of the hydraulic jack is connected to the connecting lever. The pulley is fixedly connected; there is a track groove on the connecting pulley to ensure the longitudinal movement of the pressure bearing shaft; there is a circular track groove on the frame, driven by the connecting pulley, the pressure bearing shaft moves along the circular track to realize the clamping, pushing and returning of the fixture; The top pressure spring can push the final shaft to enter the return track when the final shaft moves to the end of the stroke.

Furthermore, the clamp can be replaced, and its bayonet can be a flat plate or a semicircle for clamping flat iron or steel pipe.

Further, a rubber pad is attached to the clamp to reduce damage to the surface of the flat iron or steel pipe.

The beneficial effects produced by the present invention are: the present invention is simple to manufacture, low in cost, and easy to operate and carry. With the help of the present invention, the laying of passing ground flat irons and pipes can be completed without damaging the road surface and using large machinery, and the cost is low. Inexpensive and easy to operate.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

A simple jacking device includes a hydraulic jack 1, a frame 2, a connecting pulley 3, a pressure bearing shaft 4, a jacking spring 5 and a clamp 6. The hydraulic jack 1 fixes the end of the frame 2, the end of the hydraulic jack 1 is connected with the connecting lever 3, and the connecting lever 3 is fixed on the frame 2 through the pressure bearing shaft 4, and the connecting lever 3 is provided with a longitudinal track groove, and the pressure bearing shaft 4 can Move longitudinally along the track groove; at the same time, there is a track groove on the frame 2, and the pressure bearing shaft 4 can move along the track groove; the clamp 6 is fixed on the pressure bearing shaft 4, and the object can be clamped during the movement of the pressure bearing shaft 4 and sent forward object.

When in use, according to the actual needs of the project, a suitable position is required, and the jacking device is fixed on the ground or other objects to ensure that the jacking device will not be displaced during implementation. Select a suitable fixture according to the object, put the object from one end of the jacking device, and place it on the fixture 6. The end of the object is pushed against the jacking point, and the pressure rod of the hydraulic jack 1 is moved, and the hydraulic cylinder of the jack is working. 3 Forward, under the combined action of the frame 2 and the connecting puller 3, the pressure bearing shaft 4 will advance along the frame track, and at the same time, the clamp 6 on the pressure bearing shaft 4 will also clamp the object and drive the object to move forward, so that The object is inserted at the predetermined position. When the pressure bearing shaft 4 moves to the front end of the track, under the action of the top pressure spring 5, the clamp 6 will release the object, release the pressure of the jack, and the hydraulic cylinder will shrink, driving the connecting puller 3 and the pressure bearing shaft 4 to return to the initial setting state. Repeat this operation to complete the laying of objects.

The invention has the advantages of simple manufacture, low cost, and convenient operation and portability. With the help of the invention, the laying of passing ground flat irons and pipes can be completed without damaging the road surface and using large machinery, and the cost is low and the operation is simple.

Claims (3)

1. A simple jacking device, comprising a hydraulic jack, a frame, a connecting wrench, a pressure bearing shaft, a top pressure spring and a clamp, characterized in that: the bottom of the hydraulic jack is fixed on the frame, and the hydraulic cylinder of the hydraulic jack is fixed to the connecting wrench connection; the connecting lever is set on one side of the frame; there are two triangular annular track grooves on the frame, and a pressure bearing shaft is arranged in the circular track groove, and the pressure bearing shaft also passes through the connecting lever to open The longitudinal track groove; the clamp is arranged on the pressure bearing shaft; under the push of the connecting lever, the pressure bearing shaft moves along the circular track to realize the clamping, pushing and returning of the clamp; the two ends of the top pressure spring are respectively set On the two pressure bearing shafts, the pressure spring can push the pressure bearing shafts into the outer groove of the ring track groove when the pressure bearing shaft runs to the front end of the ring track groove. 2. A simple jacking device according to claim 1, characterized in that: the clamp can be replaced, and its bayonet can be a flat plate or a semicircle for clamping flat iron or steel pipe. 3. A simple jacking device according to claim 1, characterized in that a rubber pad is attached to the clamp to reduce damage to the surface of the flat iron or steel pipe.