KR102013556B1 - Detonator inserting deivce - Google Patents

Abstract

The present invention relates to a detonator insertion device which is configured to automatically insert a detonator into an empty cartridge case. The detonator insertion device comprises: a cartridge case movement unit into which cartridge cases on which a detonator that is not inserted into a fastening groove formed along an outer circumferential surface of a cartridge case rotation unit formed in a disc shape is mounted are inserted in a row, and which moves the cartridge cases in order by enabling the cartridge case rotation unit to rotate; and a cartridge case insertion unit installed at one side of the cartridge case movement unit, and pressurizing an upper portion of the cartridge cases moved downward in accordance with rotation of the cartridge cases rotation unit by predetermined pressure to insert the detonator into the cartridge cases.

Description

Primer Insertion Device {DETONATOR INSERTING DEIVCE}

The present invention relates to a primer insertion device, and more particularly, to a primer insertion device implemented to automatically insert a primer into the empty casings.

In general, the bullet has a structure in which a bullet is coupled to the tip of the cartridge filled with a charge and a primer is mounted at the rear of the cartridge to ignite the charge.The bullet is exploded by hitting the primer using a blow device such as a ball. It is configured to ignite the internal charge, and the bullet is flying by the pressure generated by the combustion of the charge.

When the primer is mounted on the rear end of the casing, a hole is formed in the rear end of the casing, and then the primer is inserted and mounted.After the completion of the installation of the primer, the waterproof lacquer coating and the circumference of the primer insert of the casing Pound coatings are to be applied to the shell openings. Therefore, it is not easy to automate the task of mounting the primer on the casing, and the technology of automatically mounting the primer on the casing while transferring the casing exists only in some companies such as France's MANURHIN.

The primer mounting facility of MANURHIN Co., Ltd. has a straight structure, and is configured to mount the primer by using spring pressure at the lower part of the casing, and the compound is dried while conveying the casing using a conveyor.

However, the primer mounting equipment has a problem that the structure of the apparatus is complicated because the size of the apparatus is limited and the installation position is limited and the casing must be rotated 180 degrees before and after insertion of the primer as the primer is inserted from the bottom.

On the other hand, the background art described above is technical information possessed by the inventors for the derivation of the present invention or acquired in the derivation process of the present invention, and is not necessarily a publicly known technique disclosed to the general public before the application of the present invention. .

Korea Patent Registration No. 10-1349034 Korea Patent Registration No. 10-1796273

One aspect of the present invention provides a primer insertion device implemented to insert the primer in the casing by pressing the upper side of the casing at a constant pressure while rotating the empty casings that are not inserted in the primer.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Primer insertion device according to an embodiment of the present invention, the casings are not inserted into the coupling groove formed along the outer circumferential surface of the casing rotating portion formed in the shape of a disc is inserted in a row, as the casing rotating portion rotates An casing moving unit for moving the casings in order; And a casing insertion unit installed at one side of the casing moving unit and inserting a primer into the casing by pressing an upper portion of the casing which has been moved downward according to the rotation of the casing rotating unit at a predetermined pressure.

In one embodiment, the casing moving unit, the shelf forming a flat upper side; A casing rotating part spaced apart from the upper side of the shelf in an upward direction and formed in a disc shape to form a fastening groove having a shape corresponding to the body shape of the casing along an outer circumferential surface to insert the casing; A departure prevention part forming a discharge space formed by opening a portion of a rear end, and forming a fastening space having an inner diameter corresponding to the diameter of the casing rotating part so that the casing rotating part is inserted into the inner space and rotated; And a driving part installed under the casing rotating part, the driving part rotating the casing rotating part in response to the insertion process by the casing inserting part, wherein the release preventing part covers an open inlet part of the fastening groove with an inner circumferential surface thereof. When the casing is prevented from being separated from the fastening groove, and the casing rotating part is rotated and the fastening groove into which the casing is inserted is moved to the discharge space, the inlet of the fastening groove is opened to insert the corresponding casing. Separated from the groove to be discharged, the casing insertion portion, is formed in the "b" shape, the support portion is installed on the upper side of the shelf; And a primer installed at a bent portion of the upper portion of the support portion and pressing the upper portion of the casing at a predetermined pressure when the casing on which the primer is not inserted by the rotation of the casing rotating portion is moved to the lower side and inserting the primer into the casing. It further comprises a pressurizing unit, and is provided on the lower side of the casing moving unit further comprises a movable lifting device equipped with a hydraulic jack for raising or lowering the casing moving unit in an upward direction, the movable lifting apparatus equipped with the hydraulic jack The lower frame is provided with a moving means on the lower surface, at least one column is variable in length on the upper surface; An upper frame supported by the at least one pillar and disposed in parallel with the lower frame; And a hydraulic jack installed between the lower frame and the upper frame and lifting and lowering the upper frame using an external force provided by a user to lift and lower an object seated on the upper frame. The hydraulic jack may include a working fluid. A body in which the internal cylinder and the lifting piston are disposed; Is installed on the outside of the main body is in communication with the main body to maintain a closed state, there is a pressure piston is formed therein, the working fluid is sucked as the pressure piston is raised and the suction sucked as the pressure piston is lowered An outer cylinder providing a working fluid to the inner cylinder; A pressure lever connected to a pressure piston disposed inside the outer cylinder to transfer an external force provided from a user to the pressure piston; And a release valve for releasing pressure of the inner cylinder according to a user's operation to recover the working fluid introduced into the inner cylinder to the main body, wherein the outer cylinder is provided in plural numbers, and the plurality of outer cylinders A first outer cylinder formed along a central axis coaxial with the pressure lever and at least one second outer cylinder disposed around a diameter of the first outer cylinder, wherein the first outer cylinder and the at least one second The sum of the diameters of the outer cylinders is equal to or less than one third of the diameter of the inner cylinders, and the first outer cylinder and the at least one second outer cylinder are connected to each other through an inlet pipe through which the working fluid stored in the main body is introduced. Connected to the main body, the hydraulic jack is formed in each of the first outer cylinder and at least one second outer cylinder Selectively opening and closing the inlet pipe of the can may further include a control means for varying the strength W of the pressure piston.

In one embodiment, the primer insertion device according to an embodiment of the present invention may further include a composition for repairing a building structure including an acrylic binder for filling and repairing where the crack is generated when a crack occurs in the structure. have.

In one embodiment, the composition may further comprise an EVA binder, butyl cellosolve, rosin, texanol and propylene glycol.

In one embodiment, the composition, 0.01 to 10 parts by weight of EVA binder, 0.01 to 5 parts by weight of butyl cellosolve, 0.01 to 5 parts by weight of rosin, 0.01 to 5 parts by weight of texanol and 0.01 to 5 parts by weight of propylene glycol It may include 3 parts by weight.

In one embodiment, the composition may further comprise 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol.

In one embodiment, the composition may include the 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol in a weight ratio of 15 to 20: 1.

In one embodiment, the composition may further include ethylene glycol, butyl cellosolve, calcium carbonate, titanium dioxide and water.

In one embodiment, the composition, 0.01 to 5 parts by weight of ethylene glycol, 0,01 to 5 parts by weight of butyl cellosolve, 20 to 50 parts by weight of calcium carbonate, 0.01 to 5 parts by weight of titanium dioxide and water 0.01 to 10 parts by weight may be included.

In one embodiment, the acrylic binder may be an acrylic ester copolymer.

In one embodiment, the composition may include 20 to 30 parts by weight of the acrylic binder.

According to one aspect of the present invention, by inserting the primer in the casing by pressing the upper side of the casing at a constant pressure while rotating the empty casings that are not inserted in the primer, productivity is improved and mass production is possible, thereby reducing the production cost It is effective.

1 is a view showing a schematic configuration of a primer insertion device according to an embodiment of the present invention.
2 is a view showing the casing moving unit of FIG.
3 is a view illustrating a discharge process of the casings.
4 is a view showing the casing insert of Figure 1;
FIG. 5 is a view illustrating a primer insertion process by the casing insertion unit of FIG. 4.
6 is a view showing a schematic configuration of a primer insertion device according to another embodiment of the present invention.
Figure 7 is a perspective view of a mobile lifting device equipped with a hydraulic jack according to an embodiment of the present invention.
8 is a perspective view showing a specific configuration of the hydraulic jack shown in FIG.
FIG. 9 is a conceptual diagram for describing an internal configuration and an operating principle of the hydraulic jack illustrated in FIGS. 7 and 8.
10 is a view showing the outer cylinder and the connecting portion.
11 is a perspective view showing a mobile lifting device equipped with a hydraulic jack according to another embodiment of the present invention.
12 to 14 is a perspective view showing a hydraulic jack according to another embodiment of the present invention.
15 is a perspective view showing a movable lifting device equipped with a hydraulic jack according to another embodiment of the present invention.
16 is a view illustrating the elastic support of FIG. 15.
17 and 18 show the support pillar of FIG. 16.
FIG. 19 is a cross-sectional view of the elastic part of FIG. 17. FIG.
20 is a view illustrating the vertical elastic part of FIG. 18.
21 is a view showing the load distribution of FIG.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

1 is a view showing a schematic configuration of a primer insertion device according to an embodiment of the present invention.

Referring to FIG. 1, the primer insertion device 10 according to an embodiment of the present invention includes a casing moving unit 100 and a casing inserting unit 200.

The casing moving part 100 is inserted in a row of casings 1, which are not inserted into the fastening grooves 121 formed along the outer circumferential surface of the casing rotating part 120 formed in a disc shape, on which the primer 2 is placed. As the casing rotating part 120 rotates, the casings 1 are moved in the direction in which the casing inserting part 200 is located.

Cartridge case here refers to a container of propellant charge in fixed, semi-fixed and removable shells made of brass, steel or felt nitrocellulose. In addition, a detonator is a generic term for a perfusion chemical used to explode a drug.

The casing inserting unit 200 is installed at one side of the casing moving unit 100 and presses the upper portion of the casing 1 that has been moved downward according to the rotation of the casing rotating unit 120 at a predetermined pressure to detonate the primer 2. Is inserted into the casing (1).

Here, the pressurized pressure by the casing inserting unit 200 is set and stored in advance according to the type of the primer 2 inserted into the casing 1, and when the primer 2 is inserted into the casing 1 It presses the primer 2 according to the set pressure value.

Primer insertion device 10 having the configuration as described above, by pressing the upper side of the casing (1) at a constant pressure while rotating the empty casings (1) that the primer (2) is not inserted into the casing (2) By inserting this, productivity can be improved and mass production can be carried out, and production cost can be reduced.

2 is a view showing the casing moving unit of FIG.

2, the casing moving unit 100 includes a shelf 110, a casing rotating unit 120, a departure prevention unit 130, and a driving unit 140.

The shelf 110 has a flat upper surface, and a casing rotating part 120, a departure preventing part 130, and a driving part 140 are installed at an upper part thereof, and a casing inserting part 200 is installed at one upper part thereof (FIG. 1).

The casing rotating part 120 is installed to be spaced apart from the upper side of the shelf 110 in the upper direction, is formed in a disc shape, is installed in the fastening space 132 of the departure prevention part 130 and rotated by the driving part 140. It will be, but to form a fastening groove 121 of the shape corresponding to the body shape of the casing (1) along the outer circumferential surface to insert the casing (1).

At this time, the height spaced apart from the upper side of the shelf 110 of the casing rotating part 120 in the upward direction is installed corresponding to the length of the casing (1), the longer the length of the casing (1) the longer the separation distance, the casing ( The shorter the length of 1), the smaller the separation length.

The departure prevention part 130 has a discharge space 131 which is formed by opening a portion of the rear end, and corresponds to the diameter of the casing rotating part 120 inside so that the casing rotating part 120 can be inserted into the inner space and rotate. The fastening space 132 of the inner diameter is formed.

Referring to FIG. 3, the separation prevention unit 130 covers the inlet portion of the fastening groove 121 with the inner circumferential surface 134 to prevent the shell casing 1 from being separated from the fastening groove 121-1. When the casing rotating part 120 rotates and the fastening groove 121-2 into which the casing in which the insertion process is completed is inserted is moved to the discharge space 131, the inlet of the fastening groove 121-2 is opened and inserted into the casing ( 1) may be separated from the fastening groove 121-2 to be discharged.

The driving unit 140 is formed of a driving device such as a stepper motor, is installed below the casing rotating unit 120, and rotates the casing rotating unit 120 in response to the insertion process by the casing inserting unit 200.

4 is a view showing the casing insert of Figure 1;

Referring to FIG. 4, the casing insert 200 includes a support 210 and a primer presser 220.

Support 210 is formed in the form of "a", is installed on the upper side of the shelf 110, the primer pressing portion 220 is installed on the bent portion 211 of the upper.

At this time, the casing 1 inserted into the casing rotating part 120 is moved to a space formed under the bent portion 211 (see FIG. 5).

Primer pressing unit 220 is installed on the bent portion 211 of the upper portion of the support 210, the casing 1, on which the primer 2, which is not inserted by the rotation of the casing rotating unit 120, is raised When moved to press the upper portion of the casing (1) at a predetermined pressure to insert the primer 2 into the casing (1).

At this time, the primer pressing unit 220, may be formed of a cylinder driven by the hydraulic pressure, the lower side for inserting the primer 2 by pressing the upper side of the casing (1) on the lower side of the push bundle (221). ) May be provided.

The casing insert 200 having the configuration as described above may further include an emergency button 230 for emergency braking or resumption of driving of the device.

6 is a view showing a schematic configuration of a primer insertion device according to another embodiment of the present invention.

Referring to FIG. 6, the primer inserting apparatus 10a according to an embodiment of the present invention includes a casing moving unit 100, a casing inserting unit 200, and a movable lifting device provided with a hydraulic jack. Here, the casing moving part 100 and the casing inserting part 200 are the same as the components of FIG. 1, and thus description thereof will be omitted.

It is installed below the casing moving part 100 to lift the casing moving part 100 in an upward direction, or to lower in a downward direction.

The primer insertion device 10a having the above-described configuration elevates or lowers the casing moving part 100 and the casing inserting part 200 which are inserted and fixed according to the elongation of the worker, thereby improving the worker's convenience. Not only that, but also by adjusting the height of the present invention according to the working space can also improve the utility of the space utilization.

Figure 7 is a perspective view of a mobile lifting device equipped with a hydraulic jack according to an embodiment of the present invention.

Specifically, the movable lifting device 20 provided with the hydraulic jack according to an embodiment of the present invention may include a lower frame 310, an upper frame 320, and a hydraulic jack 400.

The lower frame 310 is a member constituting the lower surface of the movable lifting device 20. The lower surface of the lower frame 310 is provided with a moving means 330, the movable lifting device 20 equipped with a hydraulic jack according to the present invention can be guaranteed mobility.

At least one pillar 340 may be disposed on the upper surface of the lower frame 310.

As shown, four pillars 340 may be provided in the corner portion of the lower frame 310, but is not limited to the number of installation.

The pillar 340 may be provided in a form in which the length may vary. For example, the pillar 340 may include an outer pillar having a first diameter and an inner pillar having a diameter smaller than the first diameter and inserted into the outer pillar and sliding along the longitudinal direction of the outer pillar. In this case, the overall length of the pillar 340 is shortened when the inner pillar is slid in the direction in which it is inserted into the outer pillar, and the overall length of the pillar 340 may be increased when the inner pillar is slid in the direction that protrudes from the outer pillar. However, the pillar 340 need not be limited to the above-described configuration, and may be replaced with other conventional configurations as long as the length can be changed by an external force.

The upper frame 320 may be supported from the lower frame 310 by at least one pillar 340 and disposed in parallel with the lower frame 310. The object to be lifted, that is, the casing moving part 100 (more specifically, the shelf 110) may be seated on the upper surface of the upper frame 320, and when the length of the pillar 340 increases, the upper frame As the 320 is lifted from the ground, the casing moving part 100 seated on the upper frame 320 is lifted up.

Hydraulic jack 400 is a device for providing a lifting force to such a pillar (340). Hydraulic jack 400 is installed between the lower frame 310 and the upper frame 320, in order to lift the object seated on the upper frame 320, variable length of the column 340 by using an external force provided by the user. By doing so, the upper frame 320 can be raised and lowered. In this regard, it will be described with reference to FIGS. 8 to 10 together.

FIG. 8 is a perspective view illustrating a specific configuration of the hydraulic jack 400 illustrated in FIG. 7, and FIG. 9 is a conceptual diagram illustrating an internal configuration and an operation principle of the hydraulic jack 400 illustrated in FIGS. 7 and 8.

Specifically, the hydraulic jack 400 according to an embodiment of the present invention, the main body 410, the outer cylinder 420, the pressure lever 430 and the release valve 440.

The main body 410 is a cylindrical member and has a space in which a working fluid can be stored, and an inner cylinder 411 and a lifting piston 412 may be disposed therein.

The inner cylinder 411 is a cylindrical member formed inside the main body 410, and a working fluid may be stored between the main body 410 and the inner cylinder 411.

The lifting piston 412 is a member installed in the inner cylinder 411 to reciprocate along the longitudinal direction of the inner cylinder 411. That is, when the working fluid is supplied to the inner cylinder 411, the length of the column 340 is increased while the lifting piston 412 is raised by the pressure of the working fluid, thereby contacting the upper portion of the lifting piston 412 The upper frame 320 may rise from the ground.

The outer cylinder 420 is a member for supplying a fluid to the inner cylinder 411, and may be connected to the main body 410 through the fastening bracket 415 so that the outer cylinder 410 is maintained in a sealed state. The pressure piston 421 is formed in the pressure piston 421, and the pressure piston 421 may be raised or lowered by the pressure lever 430.

The pressure lever 430 is a member connected to the pressure piston 421 to transfer the external force provided from the user to the pressure piston 421.

FIG. 10 is a view illustrating an outer cylinder 420 constituting the hydraulic jack 400 and a connecting portion 422 for coupling the pressure piston 421 and the pressure lever 430 of the outer cylinder 420. The pressure piston 421 formed inside the 420 is physically coupled to the pressure lever 430 through the connection portion 422, and due to this structural feature, the pressure piston 421 is provided by the user provided through the pressure lever 430. Can receive external force.

The pressure lever 430 has a through hole for coupling a member such as a pipe that can be gripped by the user, and thus the user moves the pipe up and down while the pipe is coupled to the pressure lever 430. Accordingly, an external force may be applied to the pressure lever 430. In another embodiment of the present invention, the pressure lever 430 may include the pipe described above or may be provided integrally with the pipe.

Looking at the specific operation principle of the hydraulic jack 400 according to an embodiment of the present invention, the user lifts the pressure lever 430 in a state in which the object to be raised hydraulic jack 400 is seated on the upper frame 320. When raised, the pressure piston 421 is raised to form a negative pressure in the outer cylinder 420. Accordingly, the working fluid stored between the main body 410 and the inner cylinder 411 may flow into the outer cylinder 420 along the suction pipe 451.

Then, when the user presses the pressure lever 430, the pressure piston 421 is lowered to apply pressure to the working fluid sucked into the outer cylinder 420. Thus, the working fluid sucked into the outer cylinder 420 may move to the inner cylinder 411 along the supply pipe 452. At this time, one end of the suction pipe 451 connected to the outer cylinder 420 side is provided with a non-return valve so that the working fluid can be pumped only along the supply pipe (452). The lifting piston 412 is raised by the pressure of the working fluid introduced into the inner cylinder 411. This process is repeated as the user raises and lowers the pressure lever 430, and as a result, as the pressure of the inner cylinder 411 gradually increases, the lifting piston 412 gradually rises to raise the lifting piston ( 412) The object on the top is lifted.

The release valve 440 is formed at one end of the supply pipe 452 and is a valve-shaped member for releasing the pressure of the inner cylinder 411 according to a user's operation. That is, when the user wants to lower the object to the original position, when the release valve 440 is opened, the high pressure charged working fluid introduced into the inner cylinder 411 receives gravity of the object through the recovery pipe 530. As the pressure of the lifting piston 412 is recovered to the main body 410, the lifting piston 412 is lowered by the gravity of the object while the pressure of the inner cylinder 411 is lowered, and the object may be lowered to its original position. .

As described above, the hydraulic jack 400 according to an embodiment of the present invention may lift or lower a heavy object by using a small force repeatedly applied to the pressure lever 430 from the user.

On the other hand, in another embodiment of the present invention, the user can adjust the magnitude of the pressure provided to the lifting piston 412 according to the type of the object and the type of work to be performed. In this regard, it will be described with reference to FIGS. 11 to 14 together.

11 is a perspective view showing a mobile lifting device equipped with a hydraulic jack according to another embodiment of the present invention.

Specifically, the movable lifting device 30 provided with the hydraulic jack according to another embodiment of the present invention includes a lower frame 310, an upper frame 320, and a hydraulic jack 400a.

At this time, the lower frame 310 and the upper frame 320 constituting the movable lifting device 30 equipped with a hydraulic jack according to another embodiment of the present invention shown in FIG. 11 is one embodiment of the present invention shown in FIG. Since it is the same as the lower frame 310 and the upper frame 320 constituting the movable lifting device 20 provided with a hydraulic jack according to the example, repeated description will be omitted.

On the other hand, the hydraulic lifting device 30 equipped with a hydraulic jack according to another embodiment of the present invention constitutes a mobile lifting device 20 equipped with a hydraulic jack shown in FIG. 7, the hydraulic jack according to an embodiment of the present invention ( 400 may be replaced with a hydraulic jack 400a according to another embodiment of the present invention. In this regard, it will be described with reference to FIGS. 12 to 14 together.

12 to 14 is a perspective view showing a hydraulic jack 400a according to another embodiment of the present invention.

12 is a perspective view of a hydraulic jack 400a according to another embodiment of the present invention, FIG. 13 is a view comparing an outer cylinder constituting the hydraulic jack 400a of FIG. 12, and FIG. 14 is a hydraulic jack (shown in FIG. 12). It is a conceptual diagram for explaining the internal structure and operation principle of 400a).

Specifically, the hydraulic jack 400a according to another embodiment of the present invention, the main body 410, the outer cylinder (420a, 420b, 420c, 620d, 620e, 620f), the pressure lever 430 and the release valve 440 Include.

At this time, the main body 410, the pressure lever 430 and the release valve 440 constituting the hydraulic jack 400a according to another embodiment of the present invention shown in Figure 9, one embodiment of the present invention shown in Figure 7 Since the main body 410, the pressure lever 430 and the release valve 440 constituting the hydraulic jack 400 according to the example, the repeated description will be omitted.

On the other hand, the hydraulic jack 400a according to another embodiment of the present invention may be characterized in that a plurality of outer cylinder 420 shown in FIG. That is, in the hydraulic jack 400a according to another embodiment of the present invention, a plurality of outer cylinders 420a, 620b, 420c, 420d, 420e, 420f, and 420g may be connected to the pressure lever 430. Referring to FIG. 11, the hydraulic jack 400a according to another embodiment of the present invention includes six outer cylinders 420b and 420c around the first outer cylinder 420a formed along a central axis coaxial with the pressure lever 430. 420d, 420e, 420f, and 420g are expressed as being disposed along the circumference of the first outer cylinder 420a, but the present invention is not limited thereto, and the number of the outer cylinders is not limited.

Each of the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g is provided in a cylindrical shape, and a pressure piston is formed therein, respectively. That is, when a user applies an external force to the hydraulic jack 400a by operating the pressure lever 430, the pressure lever 430 applies the external force provided to each of the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g. Can be distributed by).

In this case, when the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g are all designed to have the same diameter, the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g are delivered to each other. The external force may be uniformly distributed. As another example, when the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g are designed to have different diameters, the external force may be transmitted in proportion to the size of the diameter.

In addition, the sum of the diameters of all the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, and 420g constituting the hydraulic jack 400a may be designed to be smaller than the diameter of the inner cylinder 411. Is preferably designed such that the sum of the diameters of the outer cylinders 420a, 420b, 420c, 420d, 420e, 420f, 420g is one third or less than the diameter of the inner cylinder 411. When the diameter of the outer cylinder is larger than the diameter of the inner cylinder 411, a force smaller than the magnitude of the external force applied to the outer cylinder can be transmitted to the inner cylinder 411.

A detailed operation principle of the hydraulic jack 400a according to another embodiment of the present invention will be described with reference to FIG. 14.

In FIG. 14, the hydraulic jack 400a according to another embodiment of the present invention is illustrated with three outer cylinders 420a, 420b, and 420c. However, as described above, FIG. 12 illustrates the hydraulic jack 400a of FIG. 10. As a conceptual diagram illustrating the operating principle, two outer cylinders or four or more outer cylinders may also be the same as or similar to the following operating principles.

When the user lifts the pressure lever 430 while the hydraulic jack 400a is in contact with the object under the object to be raised, the pressure pistons 421a, 421b, and 421c of the respective outer cylinders 420a, 420b, and 420c. As the) rises, a negative pressure is formed in the outer cylinder 420. Accordingly, the working fluid stored between the main body 410 and the inner cylinder 411 may flow into the outer cylinders 420a, 420b, and 420c along the suction pipes 451a, 451b, and 451c.

Then, when the user presses the pressure lever 430, the pressure piston (421a, 421b, 421c) is lowered to apply pressure to the working fluid sucked into the outer cylinder (420a, 420b, 420c). Accordingly, the working fluid sucked into the outer cylinders 420a, 420b, and 420c may move to the inner cylinder 411 along the supply pipes 452a, 452b, and 452c. The lifting piston 412 is raised by the pressure of the working fluid introduced into the inner cylinder 411. This process is repeated as the user raises and lowers the pressure lever 430, and as a result, as the pressure of the inner cylinder 411 gradually increases, the lifting piston 412 gradually rises to raise the lifting piston ( 412) The object on the top is lifted.

At this time, the hydraulic jack 400a according to another embodiment of the present invention controls the opening and closing of the shutoff valves 4511a, 4511b, 4511c and the shutoff valves 4511a, 4511b, 4511c installed at one end of the suction pipes 451a, 451b, 451c. It may further include a control means (not shown).

The control means (not shown) may be provided in the form of a control circuit disposed inside the fastening bracket 415 and may be electrically connected to the shutoff valves 4511a, 4511b, and 4511c. In this case, the control means (not shown) may open and close the respective shutoff valves 4511a, 4511b, and 4511c according to the user's operation.

Equation 1 is a formula representing a force (W) applied to the lifting piston 412, the lifting force (W) acting on the lifting piston 412 is pressed against the diameter (D) of the lifting piston 412 It may be determined by the ratio of the sum d of the diameters of the pistons 421a, 421b, and 421c and the external force w applied to the pressure pistons 421a, 421b, and 421c.

That is, when the user transmits the external force w of a predetermined size through the pressure lever 430 to the hydraulic jack 400, the lifting force of the lifting piston 412 is the pressure piston (D) for the diameter D of the lifting piston 412. It may vary depending on the ratio of the diameter d of the 421a, 421b, and 421c. Here, the diameter D of the lifting piston 412 is determined according to the diameter of the inner cylinder 411, and the sum d of the diameters of the pressure pistons 421a, 421b, and 421c is the outer cylinders 420a, 420b, and 420c. As a result, the lifting force W acting on the lifting piston 412 depends on the ratio of the diameter sum of the outer cylinders 420a, 420b, and 420c to the diameter of the inner cylinder 411. Can be variable.

Therefore, the hydraulic jack 400a according to another embodiment of the present invention selectively controls the opening and closing of the shutoff valves 4511a, 4511b, and 4511c by a control means (not shown) to the outer cylinders 420a, 420b, and 420c. It is possible to adjust the amount of the working fluid flows in, and to increase the lifting force of the lifting piston 412 by applying pressure to the working fluid only through the pressure piston (421a, 421b, 421c) isolating valve (4511a, 4511b, 4511c) is open. It can be adjusted.

For example, when only the first shutoff valve 4511a is closed according to a user's control means (not shown), the external force applied to the working fluid is operated when all the shutoff valve valves 4511a, 4511b, and 4511c are opened. Only two thirds of the external force w applied to the fluid can be transmitted. In other words, the diameters of the outer cylinders 420a, 420b, and 420c may be varied according to the control of the control means (not shown) to have the effect of adjusting the lifting force W of the lifting piston 412. It is possible to adjust the lifting height of the hydraulic jack 400 according to the one-time operation of the pressure lever 430 according to the type of the object to be raised or the type of work to be performed after lifting the object.

In some other embodiments, control means (not shown) may automatically determine the shut-off valve valves 4511a, 4511b, 4511c to open and close.

For example, the control means (not shown) opens only one shut-off valve valve 4511a, 4511b, 4511c from the initial operation time of the hydraulic jack 400a until the pressure lever 430 is operated a predetermined number of times. From the time when the pressure lever 430 is operated more than a predetermined number of times, the plurality of shutoff valve valves 4511a, 4511b, and 4511c may be controlled to be opened. More specifically, the control means (not shown) allows only the first shut-off valve 4511a to be opened until the pressure lever 430 is operated for the first five times, and until the pressure lever 430 is operated for 6 to 10 times. The first shutoff valve 4511a and the second shutoff valve 4511b may be opened, and at least 11 times, all the shutoff valves 4511a, 4511b, and 4511c may be controlled to open. In general, when lifting an object using the hydraulic jack 400a, there are not many kinds of tasks that cannot be performed at a low height. Therefore, if the object is initially raised at a high speed and then rises to an appropriate height, the height of the object is raised. It needs to be finely adjusted. In this case, according to the above-described feature of the present invention, in the state where only one shutoff valve is opened, the object is raised at a high speed within a relatively fast time, and then gradually increases as the number of shutoff valves that are opened increases as time passes. The rate of ascent may decrease. Therefore, even if the user always operates the hydraulic jack 400a with a constant magnitude of force, the user has the effect of varying the rising height of the object.

As another example, the control means (not shown) may automatically determine the shutoff valve valves 4511a, 4511b, and 4511c to be opened and closed according to the weight of an object disposed on the hydraulic jack 400a.

To this end, the hydraulic jack 400a according to some other embodiments may be further provided with a weight sensing means (not shown).

The weight sensing means (not shown) detects the weight of the object disposed above the hydraulic jack 400a and transmits the weight to the control means (not shown), and the control means (not shown) transfers the size of the detected weight to a predetermined critical section. The shutoff valves 4511a, 4511b, and 4511c of the shutoff valves may be determined according to the comparison result.

For example, if it is determined that the control means (not shown) is included in the first critical section in which the weight of the object is relatively light, all of the shutoff valves 4511a, 4511b, and 4511c are opened to open the pressure lever 430 of the user. The lifting height of the hydraulic jack 400 according to the rotation operation can be controlled to be relatively low. On the other hand, if it is determined that the control means (not shown) is included in the second critical section where the object is relatively heavy, one operation of the pressure lever 430 of the user by opening the at least one shutoff valves 4511a, 4511b, and 4511c. The lifting height of the hydraulic jack 400 can be controlled to be relatively low. This is because when the weight of the object is relatively light, the object may leave the hydraulic jack 400a in the ascending process, and when the weight of the object is relatively heavy, the possibility of leaving the hydraulic jack 400a in the ascending process is relatively low as well. This is because a lot of climbing power is required.

As such, the hydraulic jack 400a according to another embodiment of the present invention may allow efficient work using the hydraulic jack 400a by varying the lifting force of the lifting piston 412 according to the type of object or the type of work. .

15 is a perspective view showing a movable lifting device equipped with a hydraulic jack according to another embodiment of the present invention.

Specifically, the movable lifting device 40 provided with the hydraulic jack according to another embodiment of the present invention includes a lower frame 310, an upper frame 320, a hydraulic jack 400, and a drop preventing unit 700.

At this time, the lower frame 310, the upper frame 320 and the hydraulic jack 400 constituting the movable lifting device 40 with a hydraulic jack according to another embodiment of the present invention shown in FIG. 15 is shown in FIG. Since the same as the lower frame 310 and the upper frame 320 constituting the movable lifting device 20 provided with a hydraulic jack according to an embodiment of the present invention, repeated description will be omitted.

The drop prevention unit 700 is installed at both sides of the hydraulic jack 400 to support the upper frame 320 when the upper frame 320 falls to prevent the hydraulic jack 400 from being damaged.

In one embodiment, the fall prevention part 700 may include an elastic support part 500 and a load distribution part 600.

16 is a view illustrating the elastic support of FIG. 15.

Referring to FIG. 16, the elastic support 500 includes a support frame 540, four support plates 510, four pairs of support frames 520, and support pillars 530.

The support frame 540 is supported by the support plate 510 installed at the lower side, and supports the upper frame 320 by using elastic force when the upper frame 320 falls.

The support plate 510 supports the support frame 540 seated on the upper side, and is supported by the support pillar 530 by the support frame 520 connected to the lower side.

That is, the support plate 510 seats the support frame 540 on the upper side thereof, and responds to the left and right directions (ie, the first frame 521a) by an elastic force in response to vibration or shock transmitted from the support frame 540. Alternatively, vibration or shock may be attenuated by being absorbed by the support frame 520 sliding in the up and down direction (ie, the second frame 521b).

In addition, the present invention is formed by varying the length of the first frame (521a) or the second frame (521b), to overcome the limitations of the existing elastic body that can reduce the impact by simply adjusting the height in the vertical direction The support position by the plate 510 can be freely adjusted not only in the vertical direction but also in the left and right directions.

The support frame 520 is connected to rotatably two frames of the first frame 521a and the second frame 521b at each lower portion of the four support plates 510 to support the plate 510. As described above, the length of the first frame 521a or the second frame 521b is adjusted to determine the support position of the support frame 540 by the plate 510.

At this time, the upper part of the first frame 521a and the second frame 521b is connected to the lower part of the support plate 510, and the lower part of the first frame 521a is rotated on the upper side of the support column 530. The lower surface of the second frame 521b is connected and installed to enable horizontal sliding movement, and the lower side of the second frame 521b is connected to one side of the support pillar 530 so as to allow rotational and vertical sliding movement.

That is, the first frame 521a or the second frame 521b may be subjected to vibration or shock transmitted from the support plate 510 through a pivoting or sliding movement by elastic force on the upper surface or one side of the support pillar 530. The support pillar 530 is transferred.

The support pillar 530 is formed in the shape of a square pillar, and the lower portion of the first frame 521a is connected to the upper side so as to be rotated and horizontally slidably moved, and the lower portion of the second frame 521b is one side. It is connected to the rotational and vertical sliding movement in the installation, and the elastic force (ie, the cross-elastic portion 533 or vertical elastic portion 535) during the sliding movement of the first frame (521a) or the second frame (521b) Absorbs vibrations or shocks through.

Each of the supporting plate 510 or the supporting frame 520 is driven by the same method as the symmetrical structure of each other, so that the contents of the supporting plate 510 or the supporting frame 520 as described above The same may be applied to the other support plate 510 or the other support frame 520, the description thereof will be omitted.

In addition, the elastic support 500 having the above-described configuration may be formed in a vertically symmetrical structure, in the case of FIG. 16, each configuration is illustrated as being formed only on the upper portion of the support pillar 530. The configuration associated with four support plates 510 and four pairs of support frames 520 as one would be equally applicable to the bottom of the support pillars 530.

17 and 18 show the support pillar of FIG. 16.

Referring to FIG. 17, the support pillar 530 includes a pillar body 531, a cross groove 532, a cross elastic portion 533, four vertical grooves 534 (see FIG. 18), and four vertical elastic portions. 535 (see FIG. 18).

The pillar body 531 is formed in the shape of a square pillar, a cross groove 532 is formed on the upper portion, the vertical groove 534 is formed on each side.

The cross grooves 532 are recessed and formed in the upper portion of the pillar body 531 in a "+" shape, and a cross elastic portion 533 is inserted into the inner space.

The cross resilient portion 533 is formed in a shape corresponding to the shape of the cross groove 532 and is inserted into the cross groove 532, so that the lower side of the first frame 521a is rotatable on the upper ends of the four branches. It is connected and installed to absorb the vibration or shock transmitted from the first frame 521a by using the elastic force to attenuate the vibration or shock.

The vertical groove 534 is formed in each of the surface of the pillar body 531 in the vertical direction, the vertical elastic portion 535 is inserted into the interior space.

The vertical elastic portion 535 is formed in a shape corresponding to the shape of the vertical groove 534 is inserted into the vertical groove 534, the lower side of the second frame 521b is connected to the upper outer side so as to be rotatable and elastic force By absorbing the vibration or shock transmitted from the second frame 521b to reduce the vibration or shock.

FIG. 19 is a cross-sectional view of the elastic part of FIG. 17. FIG.

Referring to FIG. 19, the cross elastic part 533 includes a cross case part 5313, an upper support part 5332, four upper elastic parts 5333, four upper elastic support parts 5340, and four upper connecting links. A part 5335 is included.

The cross case portion 5313 has an inner space formed in an empty " + " shape and is inserted into the cross groove 532, and includes an upper support portion 5332, four upper elastic portions 5333, and four which are described later in the inner space. Top elastic support parts 5340 are installed.

At this time, the length of each branch of the cross case portion 5311 is formed shorter than the length of each branch of the cross groove 532, as shown in Figure 19, the upper portion in the space formed on the outside of the cross case portion (5331) The connecting link portion 5335 may be disposed and may form a space for sliding movement.

The upper support part 5332 is formed of a cube, and is disposed at the center of the cross case part 5311, so that the upper elastic part 5333 is disposed outside each of the four surfaces, and supports the upper elastic part 5333. do.

The upper elastic part 5333 is disposed on each side surface of the upper support part 5332 to support the upper elastic support part 5340 by elastic force, thereby absorbing vibrations or shocks transmitted from the upper elastic support part 5344.

The upper elastic support part 5340 is disposed at each end of each branch of the internal space of the cross case part 5313, is supported by the elastic force of the upper elastic part 5333, and is provided between the upper connection link parts 5335. The upper connecting link portion 5335 is supported by the support bar 5336.

The upper link link portion 5335 is disposed at each end of each branch of the cross groove 532, and is provided between the side of the cross case portion 5313 and the support bar 5336 provided between the upper elastic support portion 5340. It is maintained at a predetermined interval by a), and the lower side of the first frame 521a is connected to the upper side so as to be rotatable, and each branch of the cross groove 532 meets in accordance with the vertical movement of the plate 510. Sliding along the groove of the cross groove 532 in the center direction.

20 is a view showing the vertical elastic part of FIG.

Referring to FIG. 20, the vertical elastic portion 535 includes a vertical case portion 5331, a side support portion 5332, a side elastic portion 5431, a side elastic support portion 5344, and a side connection link portion 5345. do.

The vertical case portion 5331 is formed in a shape corresponding to the shape of the vertical groove 534 in which the inner space is empty, and the side support portion 5332, the side elastic portion 5431, and the side elastic support portion 5344 are formed from the lower side of the inner space. ) Are installed in order.

The side support part 5332 is formed of a cube, is disposed in a lower space of the vertical case part 5331, and a side elastic part 5435 is disposed on the upper side to support the side elastic part 5435.

The side elastic part 5343 is disposed above the side support part 5332, and supports the side elastic support part 5344 disposed above by the elastic force, thereby preventing vibration, shock, and the like transmitted from the side elastic support part 5344. Will be absorbed.

The side elastic support part 5344 is disposed above the inner space of the vertical case part 5331, is supported by the elastic force of the side elastic part 5435, and is provided between the side connecting link parts 5345. It supports the side link link portion 5345 by.

The side link link portion 5345 is disposed at an upper end of the vertical groove 534 and is provided between a lower side facing the vertical case portion 5331 and an upper side of the side elastic support portion 5344. It is maintained at a predetermined interval by a), and the lower side of the second frame 521b is connected to the outer side so as to be rotatable, and slides along the groove of the vertical groove 534 in the lower direction of the vertical groove 534. .

Referring to FIG. 21, the load dispersing part 600 is installed below the support part 630 supporting the lower side of the elastic support part 500, and has a hollow housing 610 therein and a hollow part 615. Ground ball having a plurality of support small balls 620 placed in the portion 615, and a fixing bolt 646 extending in an upward direction from the center of the ground plane 645 and the ground plane 645 on the top ( 640).

The load spreading part 600 may disperse and partially absorb the load applied from the outside, and transmit a load q smaller than the load P applied from the outside.

The load distribution unit 600 distributes the load applied from the outside of the ball housing 610 inside the ball housing 610 and finally transmits a load smaller than the load applied from the outside of the ball housing 610. . The load applied from the outside of the ball housing 610 is distributed by the plurality of supporting small balls 620 and the ground ball 640 located in the hollow part 615, and a part of the load is distributed to the ball housing 610. The inner wall may be dispersed while pressing, and the remaining load may be transmitted to the outside of the ball housing 610.

The ball housing 610 may be fixed to the surface by using concrete, etc., and a hollow portion 615 in which a plurality of supporting small balls 620 and ground balls 640 are accommodated may be provided therein. .

The ball housing 610 is a material having a certain strength of iron, concrete, wood, plastic, etc. to support the load distributed by the action between the plurality of supporting small balls 620 and the ground ball 640 disposed therein It may be made of.

The ball housing 610 may be formed in various shapes such as a polyhedron or a sphere, and the hollow part 615 may be formed in a spherical shape corresponding to the shape of the ground ball 640.

The plurality of supporting small balls 620 and the ground ball 640 may be accommodated in the hollow part 615 and may be formed in a spherical shape.

The plurality of supporting small balls 620 may be regularly arranged and received to be in contact with each other along the outer circumferential surface of the hollow part 615. The ground ball 640 may be accommodated in the hollow part 615 in a state in which the ground ball 640 is placed on the plurality of small balls for support 620, and may be supported in a point contact state with the plurality of small balls for support 620.

As described above, the plurality of supporting small balls 620 and the ground ball 640 are regularly arranged so that the outer circumferences are in contact with each other, and the external load is caused by the contact points between the plurality of the supporting small balls 620 and the ground balls 640. Dispersion of the external load may occur while pressing the inner wall of the hollow portion 615, ie, the ball housing 610, which is transmitted and finally located at the outermost side. At this time, in the present embodiment, the plurality of small balls for support 620 are regularly arranged, and the ground balls 640 are arranged on the plurality of small balls for support 620, thereby arranging the plurality of small balls for support. The number of contact points between the 620 and the ground ball 640 may be increased, and load transfer may be regulated to increase the load transfer effect between each other. In addition, the ground ball 640 is supported in a point contact state by the plurality of supporting small balls 620, it is possible to minimize the wear.

The plurality of supporting small balls 620 and the ground ball 640 may be made of a material having strength to withstand the load due to the contact point with each other, for example, may be made of iron, concrete, wood, plastic, etc. have.

On the other hand, the ground ball 640 may be provided with a ground plane 645 on the top. A fixing bolt 646 is installed at the center portion of the ground plane 645 to be inserted into the lower side of the support portion 630 so that the support portion 630 is fixed to the ground ball 640.

At this time, the fixing bolt 646 may be formed in a flat pattern without forming a separate protrusion on the outside, but by forming a thread along the outer surface (that is, a shape such as a piece of nail), the lower side of the support portion 630 It would be desirable to tighten more strongly.

As such, the load distribution unit 600 is installed below the elastic support part 500 to support the elastic support part 500, thereby ensuring the support stability of the upper frame 320 by the elastic support part 500 as described above. can do.

Primer insertion device (10, 10a) according to another embodiment of the present invention may further include a composition for repairing the building structure including an acrylic binder for filling and repairing the crack is generated when the structure is cracked. have.

Here, the structure is, the primer insertion device (10, 10a) or the movable lifting device (20, 30, 40) equipped with a hydraulic jack may correspond to this, but is not limited to all of the respective components constituting the present invention This may be the case.

The present inventors found that there is no composition exhibiting a satisfactory effect among the compositions having improved water resistance, water resistance, and crack resistance in a composition for repairing a conventionally existing building structure. The inventors have invented a composition which exhibits a satisfactory effect of water resistance, water resistance and crack resistance.

In the present invention, the acrylic binder may be an acrylic ester copolymer. The acrylic ester copolymer may be an acrylic ester copolymer having a CAS number of 30445-28-4. The present inventors are exploring various compounds that can be added to the composition for repairing building structures, the composition that can achieve both the water resistance and crack resistance that is an object of the present invention to solve when the composition comprises the acrylic ester copolymer Confirmed.

In the present invention, the composition may include 10 to 50 parts by weight of the acrylic binder, preferably 15 to 40 parts by weight, and more preferably 20 to 30 parts by weight.

The composition of the present invention may further include, in particular, EVA binder, butyl cellosolve, rosin, texanol and propylene glycol in order to achieve particularly waterproof and water resistant among the problems to be solved by the present invention. .

In the present invention, the EVA binder is preferably ethylene vinyl acetate, and the CAS number may be a compound having 24937-78-8.

The butyl cellosolve in the present invention may be a compound having CAS number 111-76-2.

In the present invention, the rosin refers to a natural resin obtained by distilling rosin, and any type of rosin may be included as a constitution for solving the problem of the present invention.

In the present invention, the texanol (TEXANOL) may be a compound having CAS number 25265-77-4.

In the present invention, the propylene glycol may be a compound having CAS No. 57-55-6.

The inventors have found that the effect of water resistance is particularly improved when EVA binder, butyl cellosolve, rosin, texanol and propylene glycol are further included as a composition of a building structure repair composition including an acrylic binder. .

Specifically, the composition is 0.01 to 10 parts by weight of EVA binder, 0.01 to 5 parts by weight of butyl cellosolve, 0.01 to 5 parts by weight of rosin, 0.01 to 5 parts by weight of texanol and 0.01 to 3 parts by weight of propylene glycol. It may include.

More specifically, the inventors confirmed that the effect of water resistance is remarkably improved when the composition further includes 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol. It was. That is, EVA binder, butyl cellosolve, rosin, texanol and propylene glycol, and 2-amino-2-methyl-1-propanol and 2-methylamino in the building repair composition containing the acrylic binder. When the 2-methyl-1-propanol is further included, the present invention has been completed through improved water resistance and water resistance.

In the present invention, the composition may include the 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol in a weight ratio of 15 to 20: 1, preferably 16 to 20 It may be included in a weight ratio of 1: 1, and more preferably in a weight ratio of 17 to 20: 1.

The 2-amino-2-methyl-1-propanol and 2-methylamino-2-methyl-1-propanol may be included in the composition in an amount of 0.1 to 5 parts by weight.

The present inventors confirmed that the composition can improve water resistance, particularly among the problems to be achieved by the present invention.

In addition, the composition for repairing the building structure containing the acrylic binder may further comprise ethylene glycol, butyl cellosolve (butyl cellosolve), calcium carbonate, titanium dioxide and water.

If the above-described composition has an excellent waterproof and water resistance effect, the present composition is characterized in that the crack resistance is improved. The butyl cellosolve is as described above.

In the present invention, the ethylene glycol (ethylene glycol) means a compound having a CAS number 107-21-1.

In the present invention, the calcium carbonate means a compound having a CAS number of 1317-65-3.

In the present invention, the titanium dioxide means a compound having a CAS number of 13463-67-7.

Specifically, the composition is 0.01 to 5 parts by weight of ethylene glycol, 0,01 to 5 parts by weight of butyl cellosolve, 20 to 50 parts by weight of calcium carbonate, 0.01 to 5 parts by weight of titanium dioxide and 0.01 to 10 parts of water It may include parts by weight.

The inventors came to embody the idea in natural extracts while exploring the composition for improving crack resistance. The present inventors confirmed that when the flaxseed slime or flaxseed slime extract is further included in the composition, the effect of crack resistance is significantly improved. That is, when the acrylic repair-containing composition for building repair includes ethylene glycol, butyl cellosolve, calcium carbonate, titanium dioxide and water, and flaxseed slime or flaxseed slime extract, improved crack resistance The present invention was completed through confirmation.

In the present invention, the flax (flax) is a perennial herb of the dicotyledonous rat Rat Asteraceae, the seeds are flat, long oval, yellowish brown.

The flaxseed mucus in the present invention can be prepared through a variety of methods, for example by scraping the mucus from flaxseed using a scraper (scraper) can be prepared flaxseed mucus.

In the present invention, the flaxseed slime extract may be prepared as follows.

1 g of flaxseed was poured into 50 L of purified water, stirred at 25 ° C. for 5 hours, filtered through a 300 mesh filter cloth, and precipitated by addition of the same amount of alcohol, preferably ethanol, to the filtrate, and then Whatman filter paper, for example, Watts. Bay filter paper NO. After filtration using 5 to dry to obtain a white powder form.

Conventionally, various uses are known as the use of flaxseed, but the effect of improving the crack resistance by including them in a composition for repairing building structures as in the present invention has not been known to date, and studies are insignificant.

Specifically, the composition may include 1 to 10 parts by weight of the flaxseed slime or flaxseed slime extract.

In addition, at least one additive selected from a dispersant, an antifoaming agent, an antimicrobial agent, a preservative, and a cryoprotectant within a range that does not impair the basic physical properties of the building structure repair composition.

In addition, the present invention S1) removing the deterioration of the surface of the building structure; And S2) the crack repairing of the structure may be performed by forming a crack repairing film by applying and drying the building structure repairing composition on the upper surface of the building structure from which the deterioration part is removed.

Hereinafter, the configuration of the present invention and its effects through specific examples and comparative examples will be described in more detail. However, this embodiment is intended to illustrate the present invention in more detail, and the scope of the present invention is not limited to these examples.

Material preparation

Information on the main raw materials used in the building structure repair composition for the following Examples and Evaluation Examples is as follows.

1) Acrylic Binder: Acrylic ester copolymer CAS NO 30445-28-4

2) EVA Binder: Ethylene vinyl acetate CAS NO 24937-78-8

3) Butylcellosolve: CAS NO 111-76-2

4) TEXANOL: CAS NO 25265-77-4

5) Propylene glycol: CAS NO 57-55-6

6) ethylene glycol: CAS NO 107-21-1

Calcium carbonate: CAS NO 1317-65-3

8) titanium dioxide: CAS NO 13463-67-7

9) 2-amino-2-methyl-1-propanol: CAS NO 124-68-5

10) 2-methylamino-2-methyl-1-propanol: CAS NO 27646-80-6

11) Flaxseed Mucus

Flaxseed mucus was obtained by scraping mucus from flaxseed using a scraper.

12) Flaxseed Mucus Extract

1 g of flaxseed was poured into 50 L of purified water, stirred at 25 ° C. for 5 hours, filtered through a 300 mesh filter cloth, and precipitated by adding the same amount of ethanol to the filtrate. Filtration using 5 followed by drying yielded about 0.2 g of a white powder.

Example 1

5 parts by weight of EVA binder, 1 part by weight of butyl cellosolve, 0.5 part by weight of rosin, 0.5 part by weight of texanol, 0.1 part by weight of propylene glycol and other thickening aids, with 30 parts by weight of an acrylic binder and stirring at a speed of 600 rpm. After slowly adding a pH adjuster, etc. in order, 50 parts by weight of calcium carbonate was added thereto and stirred at room temperature for 1 hour at a speed of 300 rpm to prepare a composition for repairing building structures.

Example 2

5 parts by weight of EVA binder, 1 part by weight of butyl cellosolve, 0.5 part by weight of rosin, 0.5 part by weight of texanol, 0.1 part by weight of propylene glycol, 1 part by weight with 30 parts by weight of an acrylic binder and stirring at a speed of 600 rpm. 2-amino-2-methyl-1-propanol, 0.06 parts by weight of 2-methylamino-2-methyl-1-propanol and other thickening aids, pH adjusters, etc. were gradually added in order, and then 50 parts by weight of calcium carbonate, a filler, was added. Put and stirred at room temperature for 1 hour at a speed of 300rpm to prepare a composition for building structure repair.

Example 3

Put 30 parts by weight of the acrylic binder into the mixing agitation vessel and stir at a speed of 600 rpm, followed by 1 part by weight of ethylene glycol, 1 part by weight of butyl cellosolve, 0.5 part by weight of titanium dioxide, 5 parts by weight of water and other thickening aids, and pH adjusting agent. After slowly adding as much as 50 parts by weight of a filler calcium carbonate was stirred at room temperature for 1 hour at a speed of 300rpm to prepare a composition for building structure repair.

Example 4

30 parts by weight of an acrylic binder was added to the mixing agitator and 1 part by weight of ethylene glycol, 1 part by weight of butyl cellosolve, 0.5 part by weight of titanium dioxide, 5 parts by weight of water, 5 parts by weight of flaxseed slime and flaxseed slime extract After slowly adding a mixture and other thickening aids, pH regulators and the like in order to add 50 parts by weight of calcium carbonate filler and stirred at room temperature for 1 hour at a speed of 300rpm to prepare a building construction composition.

Evaluation example 1

After the deterioration part of the civil engineering structure was removed, the crack repair film was formed by coating and drying the composition for repairing the building structures of Examples 1 to 4 on the surface. The adhesive strength, crack resistance and slip resistance of the crack repair film thus obtained and the storage stability of the crack repair agent composition were evaluated based on the test method of the KS standard and KSL 1593, and the results are shown in Table 1 below. In addition, in the case of waterproofing, the degree of water absorption inside the crack repair film was evaluated by a five-point scale method. Product X in Table 1 represents a product for repairing the building structure of the building structure of Company B, which is commercially available in Korea, and evaluated it as a comparison target with the compositions of Examples 1 to 4.

TABLE 1

As shown in Table 1, the building structure repair composition of Examples 1 to 4 can be confirmed that the water resistance, water resistance and crack resistance is improved compared to the product X, it is confirmed that there is no problem in storage stability and slip resistance It became. In particular, Examples 1 and 2 in the present invention can be confirmed that the better evaluation in water resistance and water resistance, Examples 3 and 4 can be confirmed that the better evaluation in crack resistance.

The above-described embodiments are for illustrative purposes, and those of ordinary skill in the art to which the above-described embodiments belong may easily change to other specific forms without changing the technical spirit or essential features of the above-described embodiments. I can understand. Therefore, it is to be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope to be protected by the present specification is represented by the following claims rather than the above description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10, 10a: primer insertion device
20, 30, 40: movable lifting device with hydraulic jack
100: casing moving part 110: shelf
120: shell casing 130: departure prevention portion
140: drive unit 200: casing insertion unit
210: support portion 220: primer pressing portion
310: lower frame 320: upper frame
400: hydraulic jack 500: elastic support
600: load distribution part 700: drop prevention part

Claims (2)

A casing moving part which is inserted in a row of casings which are not inserted into a coupling groove formed along an outer circumferential surface of the casing rotating part formed in a disc shape, and moves the casings in order as the casing rotating part rotates; And
Is installed on one side of the casing moving unit, and includes a casing insertion unit for inserting the primer into the casing by pressing the upper portion of the casing that has been moved to the lower side according to the rotation of the casing rotation unit at a predetermined pressure,
The casing moving unit, the shelf forming a flat upper side; A casing rotating part spaced apart from the upper side of the shelf in an upward direction and formed in a disc shape to form a fastening groove having a shape corresponding to the body shape of the casing along an outer circumferential surface to insert the casing; A departure prevention part forming a discharge space formed by opening a portion of a rear end, and forming a fastening space having an inner diameter corresponding to the diameter of the casing rotating part so that the casing rotating part is inserted into the inner space and rotated; And a driving part installed below the casing rotating part and rotating the casing rotating part corresponding to the insertion process by the casing inserting part.
The release preventing part covers the inlet portion of the fastening groove with an inner circumference to prevent the shell case from being separated from the fastening groove, and the fastening groove in which the casing is inserted into the discharge space is inserted into the discharge space in which the casing rotating part is rotated. When moved, the inlet of the corresponding fastening groove is opened so that the inserted casing is separated from the fastening groove and discharged.
The casing insertion portion is formed in a "b" shape, the support portion is installed on the upper side of the shelf; And a primer installed at a bent portion of the upper portion of the support portion and pressing the upper portion of the casing at a predetermined pressure when the casing on which the primer is not inserted by the rotation of the casing rotating portion is moved to the lower side and inserting the primer into the casing. It includes a pressurizing portion,
It is provided on the lower side of the casing moving unit further comprises a movable lifting device having a hydraulic jack for lifting the casing moving unit in the upward direction, or lowering in the lower direction,
The movable lifting device equipped with the hydraulic jack may include a lower frame having a moving means disposed on a lower surface thereof and at least one column having a variable length on the upper surface thereof; An upper frame supported by the at least one pillar and disposed in parallel with the lower frame; And a hydraulic jack installed between the lower frame and the upper frame and lifting and lowering the upper frame by using an external force provided by a user to lift and lower an object seated on the upper frame.
The hydraulic jack, the working fluid is stored, the inner cylinder and the lifting piston is disposed a main body; Is installed on the outside of the main body is in communication with the main body to maintain a closed state, there is a pressure piston is formed therein, the working fluid is sucked as the pressure piston is raised and the suction sucked as the pressure piston is lowered An outer cylinder providing a working fluid to the inner cylinder; A pressure lever connected to a pressure piston disposed inside the outer cylinder to transfer an external force provided from a user to the pressure piston; And a release valve for releasing the pressure of the inner cylinder according to a user's operation to recover the working fluid introduced into the inner cylinder to the main body.
The outer cylinder may be provided in plural, and the plurality of outer cylinders may include a first outer cylinder formed along a central axis coaxial with the pressure lever and at least one second outer cylinder disposed along a diameter circumference of the first outer cylinder. Wherein the sum of the diameters of the first outer cylinder and the at least one second outer cylinder is one third or less of the diameter of the inner cylinder,
The first outer cylinder and at least one second outer cylinder is connected to the main body through an inlet pipe for introducing the working fluid stored in the main body into the inside,
The hydraulic jack further comprises a control means for selectively opening and closing a plurality of inlet pipes formed in each of the first outer cylinder and the at least one second outer cylinder to vary the lifting force of the pressure piston.

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