KR101003995B1 - Filter type grab device - Google Patents

Abstract

Disclosed is a filter grab device. The disclosed filtration grab device includes: a tank member for storing fluid, a pump member for sucking fluid from the tank member through an inlet pipe and transferring the fluid to the control block and a filter part connected to the inlet pipe to filter foreign substances contained in the fluid It is characterized by including.

Filter part, check valve, valve cover, elastic member, screen member

Description

Filtration Grab Apparatus {FILTER TYPE GRAB DEVICE}

The present invention relates to a grab apparatus, and more particularly, to a filtration type grab apparatus equipped with a filter unit for filtering a foreign matter in the pump member for introducing the oil of the tank member.

In general, the grab GRAB is provided with a gripper GRAPPLE at the bottom, and is used to move or load scrap metal or waste materials or raw materials.

GRAPPLE is hinged around the GRAB and is folded or unfolded by a hydraulically actuated cylinder.

Then, the pump member and the control block is installed on the body of the grab (GRAB) to be suspended by the crane.

The pump member sucks the oil stored inside the tank member and transfers it to the control block, and the control block connected to the pump member is connected to the cylinder to control the direction of hydraulic pressure.

The above-described invention means a background of the technical field to which the present invention belongs, and does not mean a conventional technology.

In the conventional filtration type grab device, parts broken during operation of the device are introduced into the pump member together with the oil, causing a device failure. Therefore, there is a need for improvement.

The present invention is created by the necessity as described above, it is possible to prevent the foreign matter contained in the broken parts or oil flow into the pump member. The object is to provide a filtration grab device.

Filter type grab device according to the present invention is connected to the tank member for storing the fluid, the pump member and the inlet conduit to suck the fluid of the tank member through the inlet pipe to the control block to filter the foreign matter contained in the fluid It includes a filter unit.

In addition, the control block is preferably connected to the cylinder member for operating the grapple is made to supply and withdraw the fluid.

In addition, the filter unit includes a connection member connected to the inlet pipe, a body member extending from the connection member and provided on one side of the body member for filtering foreign substances in the fluid and a check valve opened when the suction pressure of the body member is increased. It is desirable to.

In addition, it is preferable that a screw thread is formed on the surface facing the inlet pipe and the filter part so as to be mutually fastened.

In addition, the body member preferably includes a screen member having a pore and a membrane-shaped filter membrane member which is installed to overlap with the screen member.

In addition, the check valve preferably includes a valve cover for opening and closing the connecting pipe passage penetrated into the body member and an elastic member for pressing the valve cover in a direction for shielding the connecting pipe passage.

In addition, the elastic member preferably includes a spring member.

As described above, the filter type grab device according to the present invention, unlike the conventional invention, by installing the filter unit in the inlet pipe connected to the pump member to prevent the broken parts or foreign substances from entering the pump member inside the operation reliability of the device Can improve.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a filter type grab apparatus according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a view schematically showing a filter type grab apparatus according to an embodiment of the present invention, Figure 2 is a view showing an installation state of the pump member for supplying hydraulic pressure to the control block shown in Figure 1, 3 is an enlarged view of the filter unit illustrated in FIG. 2, and FIG. 4 is a diagram illustrating a state in which the valve cover illustrated in FIG. 3 is operated.

As shown in Figure 1, the filter type grab apparatus according to an embodiment of the present invention, is provided with a grab body (1) lifted by a crane.

A grabble 5 is connected to the grab body 1 by a hinge 3. The grapple 5 is connected to the lower side of the cylinder member 7 which is operated by hydraulic pressure and rotates according to the operation of the cylinder member 7 to perform a grip operation.

The grab body 1 includes a control block 22 for controlling the direction of hydraulic pressure and a tank member 10 for storing the fluid supplied to the control block 22.

The control block 22 is connected to the cylinder member 7 for operating the grapple 5 to supply and withdraw the fluid.

As shown in FIG. 2, the control block 22 is fixed to an upper side of the cap member 20 that opens and closes the tank member 10, and a pump member 24 is installed below the cap member 20.

The pump member 24 is a power member that sucks the fluid of the tank member 10 through the inlet pipe 26 and transmits the fluid to the control block 22.

An inlet pipe 26 is provided on the side surface of the pump member 24 so that the fluid of the tank member 10 flows into the pump member 24. The fluid stored in the tank member 10 is to use oil that is easy to transfer force.

The filter unit 30 is connected to the inlet pipe 26 to filter the foreign matter contained in the fluid to prevent failure of the pump member 24 and the control block 22.

As shown in Figure 3 and 4, the filter unit 30 according to an embodiment of the present invention, is formed extending from the connecting member 32 and the connecting member 32 is connected to the inlet pipe 26 It includes a check member 50 is provided on one side of the body member 40 and the body member 40 for filtering foreign matter in the fluid is opened when the suction pressure of the body member 40 is increased.

Threads are formed on the opposite surfaces of the inlet pipe 26 and the filter part 30 so as to be mutually fastened. For this purpose, a male screw part 28 is formed on the outside of the inlet pipe 26, and the connection member 32 is provided. A female screw portion 34 is formed on the inner side thereof.

The body member 40 may be used in a variety of filtration members within the technical spirit for filtering foreign matter contained in the fluid, the body member 40 according to an embodiment of the present invention is the screen member 42 having a pore And a membrane-shaped filter membrane member 44 which is installed to overlap with the screen member 42.

The filter membrane member 44 has a thin membrane shape to primaryly filter foreign substances in the fluid flowing into the body member 40.

In addition, the screen member 42 installed inside the filter membrane member 44 is formed of a filter material having a plurality of holes, thereby improving the flowability of the fluid and simultaneously filtering foreign matter contained in the fluid.

One side of the body member 40 is provided with a check valve (50). The check valve 50 does not operate when the fluid flowing into the body member 40 has a normal flow, but is not applied to the screen member 42 and the filter membrane member 44 provided in the body member 40. When foreign matter is stuck, the fluidity of the fluid is significantly lowered, which is activated to allow the flow of the fluid into the body member 40. Check valve 50 according to an embodiment of the present invention can be used for various types of valve member in this technical concept.

Check valve 50 according to an embodiment of the present invention is a valve cover in a direction to shield the valve cover 54 and the connection pipe 52 for opening and closing the connection pipe 52 penetrated inwardly of the body member 40 And an elastic member 59 for pressing 54.

The connection pipe 52 is provided on the lower side of the body member 40 (hereinafter referred to as FIG. 3), and the guide member 56 protrudes and is formed on the upper side of the valve cover 54 for opening and closing the connection pipe 52. Guide (59).

The elastic member 59 fitted to the outside of the guide member 56 may be used a variety of members in the technical concept of elastically pressing the valve cover 54 in the direction of the connecting pipe 52, an embodiment of the present invention In consideration of cost performance, the spring member is used as the elastic member (59).

A plurality of holes are formed in the bracket member 58 installed inside the body member 40 to allow fluid flow. One end of the elastic member 59 is supported by the valve cover 54 and the other end is supported by the bracket member 58.

The bracket member 58 and the valve cover 54 are spaced apart from each other by the elastic force of the elastic member 59. The valve cover 54 and the guide member 56 may be formed according to the pressure change inside the body member 40. The body member 40 is moved inside, the movement is restrained in the state in which the guide member 56 is in contact with the bracket member (58).

Hereinafter, with reference to the accompanying drawings will be described in detail the operating state of the filter-type grab apparatus according to an embodiment of the present invention.

As shown in FIG. 1, the fluid from the control block 22 is transferred to the cylinder member 7 to operate the grapple 5.

A certain amount of fluid is stored inside the tank member 10, including the fluid recovered from the cylinder member 7 to the control block 22.

As shown in FIG. 2, the fluid inside the tank member 10 flows into the filter unit 30 and is delivered to the pump member 24 along the inlet pipe 26.

The fluid delivered to the pump member 24 is supplied back to the cylinder member 7 via the control block 22.

As shown in FIG. 3, the fluid filtered through the filter membrane member 44 and the screen member 42 of the body member 40 flows toward the inlet pipe 26.

When a large amount of foreign matter is trapped in the screen member 42 and the filter membrane member 44 to reduce the fluid flow, the difference between the inner pressure and the outer pressure of the body member 40 becomes large.

In this case, as shown in FIG. 4, the valve cover 54 is moved into the body member 40 by the pressure difference, and fluid outside the body member 40 is introduced into the body member 40.

After cleaning the body member 40 through regular inspection, the fluid flows back through the body member 40, so the valve cover 54 shields the connection pipe 52 again by the elastic member 59.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims.

1 is a view schematically showing a filter type grab apparatus according to an embodiment of the present invention.

2 is a view showing an installation state of a pump member for supplying hydraulic pressure to the control block shown in FIG.

3 is an enlarged view of the filter unit illustrated in FIG. 2.

4 is a view showing a state in which the valve cover shown in FIG.

<Description of Symbols for Main Parts of Drawings>

1: Grab Body 3: Hinge

5: grapple 7: cylinder member

10: tank member 20: cap member

22: control block 24: pump member

26: inlet 28: male part

30: filter part 32: connecting member

34: female thread portion 40: body member

42: screen member 44: filter membrane member

50: check valve 52: connection pipe

54: valve cover 56: guide member

58: bracket member 59: elastic member

Claims (7)

Tank member for storing the fluid; A pump member for sucking the fluid of the tank member through an inlet pipe and transferring the fluid to the control block; And It is connected to the inlet pipe and comprises a filter for filtering foreign matter contained in the fluid, The filter unit, a connecting member connected to the inlet pipe; A body member extending from the connection member and filtering foreign substances in the fluid; And A check valve provided at one side of the body member to open when the suction pressure of the body member is increased, The body member is a screen member having a pore; And Filtration type grab apparatus comprising a membrane-like filter membrane member is installed to overlap with the screen member. The method of claim 1, The control block is connected to the cylinder member for operating the grapple is a filtration type grab device, characterized in that the supply and recovery of the fluid is made. delete The method of claim 1, Filtration type grab device, characterized in that the thread is formed on the surface facing the inlet pipe and the filter unit is mutually fastened. delete The method of claim 1, wherein the check valve, A valve cover for opening and closing a connecting pipe passage penetrated into the body member; And Filtration type grab device comprising an elastic member for pressing the valve cover in a direction to shield the connection pipe. The method of claim 6, The elastic member is a filtration type grab device, characterized in that it comprises a spring member.

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