KR100349971B1 - Wedge Jack - Google Patents

Abstract

The present invention can be sustained for a long time without damaging the top plate in a state in which the slab, which is the top plate of the bridge, etc. is lifted to a certain height during repair of a bridge or overpass (hereinafter referred to as "bridge"), without limiting the traffic passage of the vehicle. It relates to a wedge jack for repairing bridges and the like.

According to the present invention, in the conventional supporter, a key groove into which a key is inserted is provided at the rear end of the lower inclined plate, an insertion slot is formed on the rear wall of the housing, and a stopper member is formed between the rear wall of the inner lower inclined plate of the housing and the rear wall of the housing. Insert the guide plate, the inner bottom surface of the housing is installed, and the cylinder is attached to the end of the cylinder rod is attached to the guide protrusion is inserted into the insertion slits formed on the rear wall of the housing at the end of the cylinder is attached to the key groove Is done.

Accordingly, the present invention is effective to ensure the slippery of the cylinder, the slipping of the inclined plate, the visual confirmation of the rolling amount of the upper plate, and the smooth slipping of the wedge while maintaining the function of the conventional bridge repair support.

Description

Wedge Jack

The present invention can be sustained for a long time without damaging the top plate in a state in which the slab, which is the top plate of the bridge, etc. is lifted to a certain height during repair of a bridge or overpass (hereinafter referred to as "bridge"), without limiting the traffic passage of the vehicle. The invention relates to a wedge jack for repairing bridges and the like.

Bridges or overpasses (hereinafter referred to as "bridges") are constructed by connecting a bridge or a rectangular slab (top) between bridges and bridges. In addition, a special device (eg, a device such as shoe or pot bearing) can be installed between the pier and the slab to absorb the amount of impact applied to the slab while taking a certain amount of displacement by itself due to thermal contraction / expansion according to the change in the temperature of the atmosphere. do.

By the way, the bridge devices are easily damaged under the design life due to natural disasters such as earthquake weather and sedimentation of the ground and various other conditions as well as the loads considered in the design, and their rated design life is also bridges. Shorter than the structure life of the back.

Therefore, continuous maintenance management is essential even after the bridges are installed. In Korea, for the repair of bridges and their parts, the construction of the bridges and other parts of the bridge is normally blocked. The equipment is Japanese Patent Application Publication No. 4-54002 (August 28, 92). The equipment that has been researched and improved is the rolling support for bridge repair and utility of Korea Utility Model Publication No. 96-31594, which is applied for the registration of utility model. There is an improved bridge repair support of the new model registration application No. 98-13291 and the utility model registration application No. 99-1490.

The most improved type of the above-described conventional invention is Utility Model Registration Application No. 99-1490, which is the first application of its own, which is shown in the cross section in FIG. , 3) are overlapped and inserted in the width direction, lubrication plates 21 and 31 are bonded to the contact portions of the inclined plates 2 and 3, and the slide plate 22 and the buffer plate 23 are laminated. In the rolling support body, the inclined plates are composed of only the upper inclined plate 2 and the lower inclined plate 3, and the interview portions are inclined therebetween, and the center of the rear end of the lower inclined plate 3 has an elliptical key 42. Key groove 32 is inserted into the detachably inserted key groove, the rear of the housing (1) is a separate closed chamber through which the cylinder rod 41 penetrates and is attached to the rear of the lower inclined plate (3) rack gear Holds 51 and mounts on the back The rear housing 11, which receives the end of the hook 53 swinging by the hinge 52, supports the teeth of the rack gear 51 to allow the cylinder rod 41 to move forward and block the reverse. It is made of.

Therefore, in the above-described conventional invention, the inclined plate is set to two sets of upper and lower inclined plates 2 and 3, and the cylinder 4 is used as a detachable means to push the rear end of the lower inclined plate 3 installed at the lower end of the housing 1. Since the lower inclination plate 3 is forward and backward only and the upper inclination plate 2 acts up and down according to the forward and backward movement of the lower inclination plate 3, the cylinder 4 and its rod connected linearly to the lower inclination plate 3 are mounted. The twisting force is not applied to the (41) side, which plays a large role in maintaining precision and durability of the equipment, and the rack gear 51 attached to the rear of the lower slope plate 3 is housed in the rear housing 11, and Since the end of the hook 53 restraining the swing in the rear housing 11 supports the teeth of the rack gear 51, the lower slope plate 3 is advanced by a predetermined distance to the cylinder rod 41 to push up the upper slope plate 2. While holding the top plate (A) at a predetermined height When the end of the ring 53 supports the teeth of the rack gear 51, the retraction of the lower inclined plate 3 can be prevented even when the cylinder 4 and its rod 41 are removed. ) Is supported by lifting it to a predetermined height. At this time, the buffer between the upper plate (A) and the pier (B) is received by the cushioning action of the sliding plate and the buffer plate 23 between the lubrication plate 21 and the slide plate 22 installed on the upper inclined plate (2) Alternatively, the function may be performed, and if necessary, insertion of the lubrication plate 21 and the slide plate 22 may be omitted. In addition, after the maintenance work of the bridge, etc., the support body of the present invention is removed, and the hook 53 is lifted while the cylinder 4 is mounted at a predetermined position or the lower slope plate 3 is slightly advanced by the manpower. The end is easily separated from the teeth of the rack gear 51 so that the lower inclined plate 3 restrains forward and backward. At this time, if the lower inclined plate 3 is retracted to a predetermined position, the upper inclined plate 2 descends and the upper plate A It can be easily taken out between and the bridge (B).

However, with the advantages of the conventional invention described above and improved for convenience in the field when using in the present invention, that is, the present invention is to ensure the slipping of the inclined plate easily and reliably while the removable material of the cylinder, and the top plate By making it easy and accurate to measure the height that lifts the surface, it is appropriate to make the upper plate rolling amount, to make the connection with the upper plate smooth and secure, and to improve the slipper of the wedge during rolling process even under the harsh construction environment. As one invention, it will be described in detail with reference to the drawings as follows.

1 is a configuration diagram of the present invention,

2 is an exploded view of the present invention,

3 is an exploded state diagram showing another configuration of the present invention;

4 is another configuration of the present invention,

5 is a cross-sectional view of the installation state of the present invention;

6 is a cross-sectional view of a configuration state of the related art.

* Explanation of symbols for main parts of the drawings

1 --- housing

12 --- gauge bracket

121 --- Insertion hole

13 --- rear wall

131 --- Insertion slot 132 --- Pinhole 133 --- Bolt hole

14 --- Turning 15 --- Letterpress 16 --- Slit

2 --- Top Slope

21 --- lubricating plate

22 --- slide plate

221 --- recess

23 --- buffer plate

3 --- lower slope

31 --- Lubrication Plate 32 --- Keyway

4 --- cylinder

40 --- main body 41 --- cylinder rod 42 --- key

43 --- Guide protrusion

431 --- pinhole

44 --- Cylinder Plate

45 --- Pin 46 --- Fastening Bolt

5 --- stopper member

51 --- Racks 52 --- Hinge 53 --- Hooks

54 --- Bolt 55 --- Sleeve 56 --- Plate

6 --- Dial gauge

61 --- Probe 62 --- Axis

A --- Top plate (slab) B --- Pier (shift)

C --- Pedestal D --- Support

1 is a configuration diagram of the present invention, Figure 2 is an exploded state diagram showing the decomposition to understand the internal structure of the present invention.

According to the present invention, the upper and lower inclined plates (2, 3) are inserted into the housing (1) of a predetermined size in a channel shape so that the upper and lower inclined plates (2, 3) are shifted in the width direction and smoothly slid by an external force in the longitudinal direction, and the lower inclined plate (3). In the pressure-sensitive support body formed so that the upper inclined plate (2) is moved up and down with respect to the horizontal movement of the, the key groove 32 is inserted into the center of the rear end portion of the lower inclined plate (3) to slide the key 42, Insertion slits 131 are formed on the rear wall 13 of the housing 1, and after the predetermined distance of the lower slope plate 3 is advanced, the inside of the housing 1 is prevented from being pushed back. The stopper member 5 is inserted between the rear surface of the lower inclined plate 3 and the rear wall 13 of the housing 1, and the slide plate is formed on the inner bottom of the housing 1 to smoothly move forward and backward of the lower inclined plate 3. (15) is installed and the keyway at the end of the cylinder rod (41) of the cylinder (4) The guide protrusion into which the cylinder 4 to which the key 42 inserted in the 32 is attached is inserted into the insertion slot 131 formed in the rear wall 13 of the housing 1 at the front end of the main body 40. (43) is characterized in that made by attaching.

3A is an exploded view of another configuration of the present invention, and FIG. 3B is an enlarged excerpt of an A-A portion of FIG. 3A.

In the above configuration, the front of the key groove 32 is a circular cut both sides and the inside is a garden, the key 42 inserted into the key groove 32 also coincides with the front of the key groove 32 Instead of the guide protrusion 43 formed at the front end of the main body 40 of the cylinder 4, a rectangular cylinder plate 44 is attached to the outer surface of the rear wall 13 of the housing 1 to fasten the bolt 46. It is preferable to be characterized in that it is made to be fastened to).

4 is a state diagram showing another configuration of the present invention.

In the above configuration, it characterized in that it comprises a gauge bracket 12 attached to one side or both sides of the housing 1, and a dial gauge 6 is inserted into the gauge bracket 12 is installed desirable.

In the above configuration, the lubrication plate 21 is attached to the upper portion of the upper inclined plate 2, the slide plate 22 and the buffer plate 23 is laminated on the upper portion of the lubricating plate 21 desirable.

In the above configuration, the stopper member 5 is composed of two opposing bolts 54 and 54 and a sleeve 55 wrapped and joined together at their ends, or a plate-like plate 56 having various thicknesses. It is more preferable to be characterized by comprising a plurality of combinations.

In the above configuration, the lubrication plate 21 or 31 is attached to one side or both sides of the abutting portion of the upper and lower inclination plates 2 and 3 so as to reduce the coefficient of friction between the upper and lower inclination plates 2 and 3. More preferred.

In the above configuration, the protrusions 14 are formed at both upper ends of the housing 1, and the recesses 221 for engaging the protrusions 14 with the slide plate 22 are formed. More preferred.

In the above configuration, the guide protrusion 43 and the rear wall 13 of the housing 1 is more preferably characterized in that it is fixed by the fastening bolt 46.

In the present invention made as described above, as shown in FIG. 5, the upper plate A is to be pressed up to take out the teaching device C between the top plate A and the bridge B such as a bridge or the like. It is installed instead, the operation is the same as in the above-described conventional invention. However, according to the advantages of the present invention, the functions that differ from the conventional invention are as follows.

According to the present invention, in the conventional supporter, a key groove 32 into which the key 42 slides and is inserted is provided at the center of the rear end portion of the lower inclined plate 3, and the end of the rod 41 of the cylinder 4 is provided. Since the key 42 inserted into the key groove 32 is attached, the key is pushed in from above or below the key groove 32. At this time, the insertion slits 131 are formed on the rear wall 13 of the housing 1, and the cylinder 4 is inserted into the rear wall 13 of the housing 1 at the front end of the main body 40. Since the guide protrusion 43 inserted into the slit 131 is attached, the slit 131 of the housing 1 and the guide of the cylinder 4 at the time of the slide coupling between the key 42 and the key groove 32 described above. The projections 43 are also slid together and are coupled together so that the coupling / extraction is made easily and quickly. In this case, a plurality of pinholes 132 and 431 penetrating the rear wall 13 and the guide protrusion 43 in a straight line may be additionally formed (shown as 4EA in FIG. 2), and the pinholes 132 and 431 may be simultaneously formed. When the pin 45 is inserted to penetrate through, the connection between the cylinder 4 and the housing 1 is made in a straight line so that the cylinder 4 or the cylinder rod 41 can be prevented when the cylinder 4 is operated. However, even if the pin 45 is not inserted, there is no problem in operation. In addition, since the stopper member 5 is fitted between the rear surface of the lower slope plate 3, which is the inside of the housing 1, and the rear wall 13 of the housing 1, the stopper member 5 is interposed therebetween. It functions as a fixing device for pushing the inclined plate 3 to the cylinder 4 so as to be fixed at a distance from the rear wall 13 of the housing 1, and after the wedge jack is installed to lift the top plate A, the cylinder 4 The lower inclined plate 3 is fixed to support the upper inclined plate 2 at a predetermined height even if the upper inclined plate is taken out. Therefore, the required amount of the expensive cylinder 4 can be reduced. In addition, the inside of the housing (1) is provided with a typeface 15, for example, by digging the bottom of the housing (1) at predetermined intervals, and in addition to the type of the plate (15) with a friction coefficient close to 0 Since the clearance gap 16 is formed between 15, even if the dust and the dust, such as a construction site, can be mixed in the housing 4, dust or dust mixed in the gap between the board 15. The lower inclination plate 3 is accommodated in the 16, and the sliding contact is made through the housing 4 and the plate 15, so that it can be smoothly moved back and forth.

According to another configuration of the present invention, instead of the guide protrusion 43 formed at the front end of the main body 40 of the cylinder 4, a rectangular cylinder plate 44 is attached to the outer surface of the rear wall 13 of the housing 1. Since it is made to be fastened to the fastening bolt 45, the fastening structure in the basic configuration of the present invention is to change the fastening structure from the slide type to the bolted type, accordingly, the front side of the key groove 32 is cut both sides It is circular and the inside is a garden, and the key 42 inserted into the key groove 32 is also made to coincide with the front surface of the key groove 32 so that the housing 1 and the cylinder 4 are positioned in a straight line and the cylinder While extending the rod 41, it was possible to fasten the key 42 in front of the key groove (32). At this time, the rear wall 13 of the housing 1 may coincide with the end of the housing 1 as shown in FIG. 3A. Preferably, the rear wall 13 is inserted to insert the cylinder plate 44 as shown in FIG. 3B. The cylinder plate 44 of the housing 1 is positioned inwardly (left in the drawing). In this case, since the cylinder plate 44 is inserted into the end of the housing 1, the fastening bolt 45 is firmly fastened. Even if it does not, it is possible to secure sufficient bonding force.

According to another configuration of the present invention, the gauge bracket 12 is attached to one side or both sides of the housing 1, and the dial gauge 6 is inserted into the gauge bracket 12 is installed, for example Gauge 6 is detachable material between the gauge shaft 12 and the gauge bracket 12 attached to the rear of the dial gauge 6 when the support shaft 62 is inserted into the gauge bracket 12 as a rotating material attached to the rear of the gauge (12) While it may be necessary to control the rotation (Tilting) at a predetermined angle as needed, the probe 61 of the gauge 6 is directed upward so that the probe 61 is always a certain height, etc. on the slide plate 22 thereon. When pressed, it is possible to easily read the height at which the upper plate A is pressed while reading the scale from the gauge 6. That is, since the top plate (A) and the pier (B) where the wedge jack of the present invention is used is a narrow place, the gauge bracket 12 can be attached to any side of the housing (4) as needed and at any angle. It is preferred to be able to position them, and the dial gauge 6 is attached to the housing 4 by the above structure and the probe 61 of the gauge 5 covers the upper side of the wedge jack 22. ), The probe 61 is pressed against the slide plate 22, and the wedge jack is operated with the zero point held by the slide plate 22, while the slide plate 22 lifts the top plate A and at the same time the probe 61 ) And the gauge (5) will automatically indicate the distance of-value, therefore, if the gauge 6 is made of a dedicated gauge used in the present invention, that is-if the distance is represented by +, it is more convenient to use. It becomes possible to write.

According to another configuration of the present invention, the upper swash plate (2) is attached to the upper lubricating plate 21 and the upper lubricating plate 21, the slide plate 22 and the buffer plate 23 is made of the upper and lower parts By reducing the friction coefficient between the inclined plates (2, 3), the lower inclined plate can be retracted smoothly to serve as a function of the teaching device, which can be replaced by a wedge jack even when replacing the teaching device.

According to another configuration of the invention, the stopper member 5 may be composed of two opposing bolts 54 and 54 and a sleeve 55 wrapped together at their ends, which is a lower inclined plate as described above. It functions to prevent the cylinder 4 from being taken out even when the upper plate A is pushed up to a predetermined height by pushing the upper inclined plate 2 upward by advancing (3) the left direction in FIG. The action is that when the sleeve 55 is rotated in one direction, the two bolts 54 and 54 screwed together are screwed / extruded at the same time. The sleeve 55 is rotated to the sleeve 55 and the bolts 54 and 54. When the full length of the stopper member 5 formed is slightly smaller than the gap between the lower inclined plate 3 and the rear wall 13, the length of the lower inclined plate 3 is firmly secured by rotating the sleeve 55 to increase the total length. I can support it. At this time, since the sleeve 55 is rotated by a person by hand, for convenience of work, the sleeve 55 may be knurled on the outer circumferential surface, or be formed in a square shape so that the sleeve 55 may be turned with a spanner, or a hole may be drilled in the outer circumference thereof. It is desirable to be able to insert and turn the tool, and it is obvious that such modifications are included in the technical scope of the present invention. In addition, the stopper member 5 may be formed by combining a plurality of plate-like plate materials 56 having various thicknesses, which overlap the lower plate 3 and the rear wall 3 by overlapping a plurality of plate materials 56 having different thicknesses. 13) It is to be inserted into the gap with the thickness corresponding to the gap between them.

According to another configuration of the present invention, by attaching the lubrication plate 21 or 31 to one side or both sides of the butt portion of the upper and lower inclined plates (2, 3) to reduce the coefficient of friction between the upper and lower inclined plates (2, 3). In addition, the lubricating plates 21 and 31 may use ultra-precision mirror plates or plates with bearings inserted therein. Preferably, the lubricating plates 21 and 31 may be formed by contact between the fluorine resin (PTFE) plate and the stainless plate. Smooth sliding is guaranteed.

According to still another configuration of the present invention, the protrusions 14 are formed at both upper ends of the housing 1, and the recesses 221 to which the protrusions 14 engage with the slide plate 22 are formed. , This is configured to prevent the upper plate (A) can fall when the slide plate 22 slips off the housing (1) to leave the housing (1).

According to another configuration of the present invention, the guide protrusion 43 and the rear wall 13 of the housing 1 are fastened to the fastening bolt 46, which forms a spiral in the pinholes 132 and 431 to fasten the bolt ( 46) is to be tightened, especially in a poor environment of the construction site is intended to solidify the coupling to prepare for any possible situation, where the pinholes (132, 431) forming the spiral is symmetrically 2 It is preferable to use more than two (shown by two in FIG. 3).

As described above, the present invention has the function of the conventional bridge repair support as it is, while ensuring the slipping of the inclined plate easily and reliably, even with the detachment of the cylinder as a material, and easily with the naked eye to raise the height of the upper plate. It is an invention that improves the ability to accurately measure the top plate of the top plate, makes the connection with the top plate smooth and secure, and smooths the slide of the wedge during the rolling process even under the harsh construction environment. Invention.

Claims (8)

Upper and lower inclined plates (2, 3) are inserted into the housing (1) of a channel standard in a channel shape in a width direction and overlapped and inserted so as to slide smoothly by external force in the longitudinal direction, and the horizontal movement of the lower inclined plate (3) In the upper support plate 2 which is formed so that the upper inclined plate 2 is movable, the key groove 32 in which the key 42 is inserted to slide in the center of the rear end portion of the lower inclined plate 3 is provided. Insertion slits 131 are formed on the rear wall 13 of the bottom wall, and after the predetermined distance of the lower slope plate 3 is advanced, the lower slope plate (inner side of the housing 1) is prevented from being pushed back of the lower slope plate 3. The stopper member 5 is inserted between the rear surface of the housing 3 and the rear wall 13 of the housing 1, and the slide plate 15 is smoothly moved forward and backward of the lower slope plate 3 on the inner bottom surface of the housing 1. And insert into the keyway 32 at the end of the cylinder rod 41 of the cylinder 4. Attaches a guide protrusion 43 into which the cylinder 4 to which the key 42 is attached is inserted into the inserting slit 131 formed at the rear wall 13 of the housing 1 at the front end of the main body 40. Wedge jack, characterized in that made by. delete The wedge according to claim 1, further comprising a gauge bracket (12) attached to one side or both sides of the housing (1) and a dial gauge (6) inserted into and installed on the gauge bracket (12). jack. 4. The wedge according to claim 3, wherein a lubrication plate 21 is attached to an upper portion of the upper slope plate 2, and a slide plate 22 and a buffer plate 23 are stacked on the upper portion of the lubrication plate 21. jack. 5. The stopper member (5) according to claim 4, wherein the stopper member (5) consists of two opposing bolts (54, 54) and a sleeve (55) wrapped together at their ends or plate-shaped plate (56) of various thicknesses. Wedge jack, characterized in that consisting of a plurality of. 6. The lubricating plate (21 or 31) is attached to one side or both sides of the abutting portion of the upper and lower inclined plates (2, 3) according to claim 4 or 5 to reduce the coefficient of friction between the upper and lower inclined plates (2, 3). Wedge jack, characterized in that. The method of claim 6, characterized in that the projections 14 are formed at both upper ends of the housing 1, and the recesses 221 to which the projections 14 engage with the slide plate 22 are formed. Wedgejack. 8. The wedge jack according to claim 7, wherein the guide protrusion (43) and the rear wall (13) of the housing (1) are fixed by fastening bolts (46).