KR20200124873A - Hydraulic pump apparatus - Google Patents

Abstract

Disclosed is a hydraulic jack device capable of connecting a preferred number of hydraulic jack devices in parallel. According to the present invention, the hydraulic jack device can comprise: a plurality of hydraulic jacks where an operation body is moved forward and backward by internal hydraulic pressure of a cylinder; and a parallel connection unit enabling adjacent hydraulic jacks to be separably coupled to each other between adjacent hydraulic jacks among the hydraulic jacks.

Description

Hydraulic jack device {Hydraulic pump apparatus}

The present invention relates to a hydraulic jack device, and to a hydraulic jack device capable of connecting a plurality of hydraulic jack devices in parallel as desired.

In general, a hydraulic jack is an equipment that reciprocates a ram or a plunger, which is an actuator, by applying hydraulic pressure inside a cylinder. These hydraulic jacks are widely used in various places because they can generate large power with a small pump power.

On the other hand, these hydraulic jacks can be applied to the so-called IPS construction method and the underground construction method using the prestress method.At this time, the underground construction method using the prestress method (hereinafter referred to as'IPS construction method: Innovative Pre-stressed The support method') replaces the effect of support beams that are closely installed in a large amount of structures in underground facilities, with the effect of pre-stressing of tension members arranged in a curved line, thereby increasing the gap between the support beams to be installed. Therefore, it is an innovative construction method that significantly reduces the amount of steel used for construction of underground facilities.

In this IPS method, a hydraulic jack is provided and used horizontally to adjust the tension of the tension member. For various reasons, not one hydraulic jack is used, but several hydraulic jacks are installed to provide power at the same time.

However, in the IPS method, when several hydraulic jacks are used vertically, the position is fixed and there is no other problem. However, when several hydraulic jacks are used horizontally, it is difficult to secure the position due to the load, and the corresponding connecting member There is a problem in that it is inconvenient to use because it is manufactured and used at that time according to the number and location of each hydraulic jack.

Registered Patent No.661486

An object of the present invention is to solve this problem, to provide a hydraulic jack device that can be used by connecting the hydraulic jacks to a desired distance and a desired number by connecting members.

As a specific means for achieving the above object, the present invention provides a plurality of hydraulic jacks in which an actuator moves forward and backward by hydraulic pressure inside the cylinder, and hydraulic jacks adjacent to each other between the hydraulic jacks adjacent to each other among the plurality of hydraulic jacks. A parallel connection unit that can be detachably coupled may be provided.

In this case, when the plurality of hydraulic jacks includes three or more hydraulic jacks, the three or more hydraulic jacks may be arranged to form a polygonal shape.

In this case, the plurality of hydraulic jacks may be arranged so that the distance between adjacent hydraulic jacks is the same.

At this time, the parallel connection portion is formed on one side of the cylinder of the first hydraulic jack of the plurality of hydraulic jacks, the first fastening portion through which the first fastening bolt passes; A second fastening part formed on the other side of the cylinder of the second hydraulic jack adjacent to the first hydraulic jack among the plurality of hydraulic jacks, formed at a different height from the first fastening part, and screwed to the second fastening bolt; A parallel connection member having a first connection part fastened with a first fastening bolt while positioned to communicate with the first fastening part, and a second connection part through which the second fastening bolt passes when located so as to communicate with the second fastening part May include;

In this case, the parallel connection member includes an intermediate connection part connecting the first connection part and the second connection part to each other, and at least one of the first connection part, the second connection part, and the intermediate connection part is made of a flexible material. Can be done.

In this case, the first fastening part, the second fastening part, the first connecting part, and the second connecting part may have the same length.

In this case, it may be formed so that the first fastening bolt and the second fastening bolt are arranged in a direction parallel to the axial direction of the hydraulic jack.

In this case, the lower end of the first fastening part and the upper end of the second fastening part may be formed at the same height.

In this case, an upper end of the first connection part and a lower end of the second connection part may be formed at the same height.

At this time, the plurality of hydraulic jacks are formed to support the two supports by being disposed in a horizontal direction or in an inclined direction not perpendicular to the bottom surface between two adjacent supports, and the parallel connection part It may be formed to constrain each other in a direction perpendicular to the bottom surface between the adjacent hydraulic jacks.

As described above, the present invention has the following effects.

(1) In the present invention, a plurality of hydraulic jacks can be modularized by a parallel connection unit and arranged in a desired position and shape, so when arranged in a horizontal direction or in an inclined direction, the parallel connection parts between adjacent hydraulic jacks with respect to the load direction By constraining each other in a vertical direction with respect to the floor and supporting each other, the operation can be performed while maintaining the position and shape as designed.

(2) The present invention eliminates the need to use a hollow type pump because it can be arranged to have a polygonal shape on a plane by the parallel connection member.

1 is a front view of the inside of the temporary installation when applying the IPS method for applying the hydraulic jack device according to the present invention.
Figure 2 is a perspective view of a hydraulic jack device applied to the temporary installation shown in Figure 1;
3 is a plan view of a hydraulic jack device applied to the temporary installation shown in FIG. 1.
4 is an exploded perspective view of a hydraulic jack device according to a first embodiment of the present invention.
5 is a perspective view of a hydraulic jack device according to a first embodiment of the present invention.
6 is an exploded perspective view of a hydraulic jack device according to a second embodiment of the present invention.
7 is a perspective view of a hydraulic jack device according to a second embodiment of the present invention.
8 is a schematic view of a hydraulic jack device according to a third embodiment of the present invention and a front view of a parallel connection member, which is a component.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. The present invention may be implemented in various different forms, and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and the same reference numerals are assigned to the same or similar components throughout the specification.

In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the possibility of addition or presence of elements or numbers, steps, actions, components, parts, or combinations thereof is not preliminarily excluded. In addition, when a part such as a layer, film, region, plate, etc. is said to be "on" another part, this includes not only the case where the other part is "directly above", but also the case where there is another part in the middle. Conversely, when a part such as a layer, film, region, plate, etc. is said to be "below" another part, this includes not only the case where the other part is "directly below", but also the case where there is another part in the middle.

Hereinafter, a hydraulic jack device 100 according to an embodiment of the present invention will be described in more detail with reference to the drawings.

First, a brief description of the IPS method to which the hydraulic jack device 100 according to the present invention can be applied is as follows.

Referring to FIGS. 1 to 3, the strip length structure 10 for earth protection is applied by applying a tension force to the steel wire 32 installed in the strip length 30 of the prestress method during the construction of the earth protection system. Try to support the earth pressure. At this time, the strip 30 is installed inside the earthen wall 11, and the earthen wall 11 may be started on the inner wall of the excavated area for the temporary earthwork construction having a rectangular planar structure. Eccentric beams are installed so as to protrude at regular intervals in the strip (30), and the steel wire 32 may pass through the upper end of the eccentric beam.

At this time, the tension force of the steel wire 32 serves to minimize the damage to adjacent structures during excavation in a large city center by suppressing the deformation of the earthing wall 11 due to excavation. When the tension force is applied by adjusting the length of the eccentric beam protruding from the belt length, it is possible to offset the compressive force acting on the belt length.

This, the earthen barrier structure can support the earth pressure of the ground by increasing the tension on the steel wire.

At this time, the tension of the steel wire can be increased by operating the hydraulic jack device 100 according to the present invention horizontally.

At this time, according to an embodiment of the present invention, a plurality of hydraulic jacks may be formed of two or three or more. Two hydraulic jacks may be formed to be arranged in a line, and three or more hydraulic jacks may be connected to each other and arranged to form a polygonal shape.

Hereinafter, in the first embodiment, a form in which two hydraulic jacks 110 and 190 are combined will be described by way of example.

The hydraulic jack device 100 according to the first embodiment of the present invention, referring to FIGS. 4 and 5, a first hydraulic jack 110 and a second hydraulic jack 190, which are adjacent hydraulic jacks among a plurality of hydraulic jacks. It may include a parallel connection that can be coupled to be separated from each other.

At this time, the first hydraulic jack 110 generally includes a cylinder 111, an actuator 112, and a pump that provides hydraulic oil in the cylinder 111. The actuator 112 is called a ram or plunger, and operates in a straight line according to hydraulic pressure.

In this case, the parallel connection part may include a first fastening part 111a, a second fastening part 191b, and a parallel connection member 120.

The first fastening part 111a is formed on one side of the cylinder 111 of the first hydraulic jack 110 and, referring to FIGS. 4 and 5, the first fastening bolt 131 of the fastening bolts 130 Is formed to pass through.

In this case, the first fastening portion 111a may be formed in a shape protruding outward from an outer surface of the cylinder 111 and may be formed in a cylindrical shape parallel to the axial direction of the first hydraulic jack 110.

At this time, the first fastening part 111a is only through which the first fastening bolt 131 passes, but is not screwed.

The second fastening part 191b is formed on one side of the cylinder 191 of the second hydraulic jack 190 and is formed at a different height from the first fastening part 111a, so that the second fastening bolt 132 and Can be screwed.

In this case, the second fastening portion 191b may also be formed to protrude outward from the outer surface of the cylinder 191 and may be formed in a cylindrical shape parallel to the axial direction of the second hydraulic jack 190.

At this time, one hydraulic jack may have a first fastening part on one side and a second fastening part on the other side. The second fastening part may be formed opposite the first fastening part, that is, 180 degrees opposite. For example, a second fastening part 111b may be formed opposite the first fastening part 111a of the first hydraulic jack 110. That is, of course, it may be formed at other angles.

At this time, referring to FIGS. 4 and 5, the first fastening part 111a and the second fastening part 191b may have substantially the same length, and the lower end of the first fastening part 111a is It may be formed to be substantially the same height as the upper end of the second fastening portion 191b.

At this time, the hydraulic jacks (110, 190) can be assembled by forming a plurality of the first and second fastening portions (111a, 191b) described above to each of the cylinders (111, 191) to form the same shape.

The parallel connection member 120 may include a first connection part 121a, a second connection part 121b, and an intermediate connection part 121 with reference to FIGS. 4 and 5.

In this case, the first connection part 121a may be fastened with the first fastening bolt 131 while being positioned to communicate with the first fastening part 111a. Like the first fastening part 111a, the first connecting part 121a has a long cylindrical shape.

At this time, the second connection part 121b is formed so that the second fastening bolt 132 can pass while being positioned to communicate with the second fastening part 191b.

At this time, the first and second connection portions 121a and 121b are formed in the same cylindrical shape only with different heights, and a screw is formed inside the first connection portion 121a.

In this case, the intermediate connection portion 121 is formed to be connected to each other while the first connection portion 121a and the second connection portion 121b are spaced apart. The intermediate connection part 121 is formed in a substantially rectangular parallelepiped shape, and has a first connection part 121a at one end and a second connection part 121b at the opposite end. The length of the intermediate connection may be selected differently depending on the distance between neighboring hydraulic jacks.

In this case, the first fastening part 111a, the second fastening part 191b, the first connecting part 121a, and the second connecting part 121b may have the same length.

At this time, the first fastening part 111a, the second fastening part 191b, the first connecting part 121a, and the second connecting part 121b are fastened in a direction parallel to the axial direction of the hydraulic jacks 110 and 190. The bolt 130 may be formed to be passed or screwed.

Referring to FIG. 5, an exploded view showing the connection of the hydraulic jack device 100 according to the first embodiment of the present invention can be seen. A parallel connection member 120 for connecting the two hydraulic jacks 110 and 190 is positioned. The first and second hydraulic jacks 110 and 190 have a first fastening part 111a and a second fastening part 191b in the same form, and the hydraulic jacks 110 and 190 are the parallel connection members. Can be fastened by 120.

In the assembly for modularization of the two hydraulic jacks (110, 190), the first connection part (121a) of the parallel connection member (120) to the first fastening part (111a) of the first hydraulic jack (110) is As shown in FIG. 5 by using two fastening bolts 130 in a state in which the second connecting part 112b is located above the second fastening part 191b of another hydraulic jack 190 to be connected adjacent at the same time. By fastening, the two hydraulic jacks 110 and 190 are connected and modularized.

Referring to FIG. 4, it shows a state in which two hydraulic jacks 110 and 190 are connected by a parallel connection member 120. In this state, if the hydraulic jack device 100 is disposed in a horizontal or inclined direction and used in the IPS method, it can be operated while maintaining the position and shape as designed by performing a role of mutually supporting the load direction. There will be.

Meanwhile, referring to FIGS. 6 and 7, a hydraulic jack device according to a second embodiment of the present invention is shown.

The difference from the first embodiment is that two or more parallel connection members 220 connecting the cylinders of the hydraulic jacks 210, 280, and 290 are applied instead of one.

In addition, the three hydraulic jacks (210, 280, 290) are arranged in a triangular shape, it is composed of a structure in which a hole is formed in the central portion of the hydraulic jack device 200 arranged in a triangle. Pipes or electric wires may be disposed in such a hole to pass through.

In the present embodiment, an example in which three hydraulic jacks are arranged in a triangular shape is illustrated, but when the hydraulic jacks are composed of four, they may be arranged in a square shape, and similarly, five or more hydraulic jacks may be arranged in a polygonal shape. Of course.

6 and 7, the hydraulic jacks 210, 280, and 290 are composed of cylinders 211, 281, 291 and actuators 212, 282, 292, as in the first embodiment, and the cylinder 211 It is also the same that the first fastening part 211a and the second fastening part 291b are formed on the outer surfaces of the 281 and 291. The hydraulic jack device 200 is configured such that the three hydraulic jacks 210, 280, 290 formed of the first hydraulic jack 210, the second hydraulic jack 290, and the third hydraulic jack 280 form a 120 degree angle. It is modular in the deployed state.

In addition, the hydraulic jacks (210, 280, 290) are formed by two parallel connection members 220, rather than a parallel connection part connected by one parallel connection member 220, two or more parallel connection as needed It shows that the member 220 can be used.

At this time, the parallel connection member 220 also includes a first connection part 221a, a second connection part 221b, and an intermediate connection member 221, similarly to the first embodiment. Therefore, the parallel connection member 220 can be connected to several fastening bolts (231, 232, 233: 230) as if connecting with the first and second fastening parts (211a, 291b) of the first and second hydraulic jacks (210, 290). There will be.

Meanwhile, referring to FIG. 8, a hydraulic jack device 300 according to a third embodiment of the present invention is shown.

The hydraulic jack device 300 is made to have a difference in connection flexibility with the above-described embodiments. That is, the configuration of the fastening parts and the parallel connection member for connecting the hydraulic jack 310 is made the same, but some of the material is changed to a flexible material.

That is, in the hydraulic jack device 300 according to the third embodiment of the present invention, in the hydraulic jack device 310 including a plurality of hydraulic jacks in which an actuator moves forward and backward by the hydraulic pressure inside the cylinder 311, the The first fastening part formed on one side of the cylinder 310 and through which the fastening bolt passes, and the second fastening part formed on one side of the cylinder and formed at a different height from the first fastening part and screwed to the fastening bolt are the same. Include it.

In addition, further comprising a connection member 320, the first connection portion (321a) that is fastened with the fastening bolt in a state positioned to communicate with the first fastening portion, and the fastening bolt in a state positioned so as to communicate with the second fastening portion And a second connection part 321b through which the first connection part 321a and the second connection part 321b pass, and an intermediate connection part 321 that connects to each other while the first connection part 321a and the second connection part 321b are spaced apart from each other. Here, in particular, any one of the second connection portion 321b and the intermediate connection portion 321 is made of a flexible material.

In this case, a part of the intermediate connection part 321 may be made of rubber, which is a flexible material. That is, since the intermediate connection part 321 is made of rubber, as shown in FIG. 8, if the hydraulic jack device 310 is modularized and installed slightly different depending on the situation and location, it compensates for this so that the hydraulic jack 310 can achieve different angles. You can have it. Of course, this angle is exaggerated in the drawings, but it may be twisted at a very small angle.

On the other hand, in this embodiment, it is illustrated that the parallel connection part is made by the first fastening part, the second fastening part, and the parallel connection member, and the parallel connection member is formed by the first connection part and the second connection part. The parallel connection unit interconnecting each other may be formed in various forms as long as the hydraulic jacks adjacent to each other can be detachably coupled to each other.

In the hydraulic jack device according to an embodiment of the present invention, a plurality of hydraulic jacks are arranged in a horizontal direction or an inclined direction not perpendicular to the floor between two adjacent supports to support the two supports. And parallel connection portions are formed to constrain each other in a vertical direction with respect to the floor surface, so that when a plurality of hydraulic jacks are arranged in a horizontal direction or in an inclined direction, it is easy to install a plurality of hydraulic jacks. It can be done, and the strength of supporting the two supports can be improved.

Although an embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiment presented in the present specification, and those skilled in the art who understand the spirit of the present invention can add components within the scope of the same idea. It will be possible to easily propose other embodiments by changing, deleting, adding, etc., but it will be said that this is also within the scope of the present invention.

100, 200, 300: hydraulic jack device
110, 210,: first hydraulic jack 111, 191, 211, 281, 291, 311: cylinder
111a, 211a: first fastening part 112, 192, 212, 281, 292, 312: actuator
120, 220: parallel connection member 121a, 221a: first connection
121b, 221b: second connection portion 190, 290: second hydraulic jack
191b, 291b: second fastening part 280: third hydraulic jack

Claims (10)

A plurality of hydraulic jacks in which the actuator moves forward and backward by the hydraulic pressure inside the cylinder, and
A hydraulic jack device provided with a parallel connection unit capable of separably coupling adjacent hydraulic jacks between adjacent hydraulic jacks among the plurality of hydraulic jacks. The method of claim 1,
When the plurality of hydraulic jacks include three or more hydraulic jacks, the hydraulic jack device is arranged so that the three or more hydraulic jacks form a polygonal shape. The method of claim 2,
A hydraulic jack device in which the plurality of hydraulic jacks are disposed so that the distance between adjacent hydraulic jacks is the same. The method according to claim 1 or 2,
The parallel connection part
A first fastening part formed on one side of the cylinder of the first hydraulic jack among the plurality of hydraulic jacks through which the first fastening bolt passes;
A second fastening part formed on the other side of the cylinder of the second hydraulic jack adjacent to the first hydraulic jack among the plurality of hydraulic jacks, formed at a different height from the first fastening part, and screwed to the second fastening bolt;
Parallel having a first connection part fastened with the first fastening bolt in a state positioned to communicate with the first fastening part, and a second connecting part through which the second fastening bolt passes when located in communication with the second fastening part Connecting member;
Hydraulic jack device comprising a. The method of claim 4,
The parallel connection member
And an intermediate connection part connecting the first connection part and the second connection part to each other,
At least one of the first connection part, the second connection part, and the intermediate connection part is made of a flexible material. The method of claim 4,
The first fastening part, the second fastening part, the first connecting part, and the second connecting part have the same length. The method of claim 4,
The hydraulic jack device is formed such that the first fastening bolt and the second fastening bolt are arranged in a direction parallel to the axial direction of the hydraulic jack. The method of claim 4,
The hydraulic jack device formed at the same height between the lower end of the first fastening part and the upper end of the second fastening part. The method of claim 4,
The hydraulic jack device formed at the same height between the upper end of the first connection and the lower end of the second connection. The method according to claim 1 or 2,
The plurality of hydraulic jacks are formed to support the two supports by being pressed in a horizontal direction or in an inclined direction not perpendicular to the bottom surface between two adjacent supports,
A hydraulic jack device wherein the parallel connection portions are formed to constrain each other in a vertical direction with respect to a floor surface between the adjacent hydraulic jacks.

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