KR200374189Y1 - A spanner for screw jack - Google Patents

Abstract

The present invention relates to a spanner (spanner) for screw jacks, and more particularly, to easily handle, that is, install and remove screw jacks used for connection between support members when constructing structures or buildings. An auxiliary screw jack spanner.

The present invention includes a locking portion coupled to the screw shaft of the screw jack and caught by the arm of the screw shaft and rotating together with the screw shaft, and a bag that is coupled to the locking portion through a latch device to rotate the locking portion by an operator. It can be configured and installed quickly and easily.

In addition, the present invention can operate a large preceding load between the support members by using a hydraulic cylinder, it is convenient to use the spanner automatically.

Description

Spanner for screw jack {A spanner for screw jack}

The present invention relates to a spanner for screw jacks, and more particularly to a screw jack spanner to assist in the easy handling, that is, the installation and removal of the screw jack used for the connection between the support member during construction of the structure or building will be.

Recently, construction trends of buildings focus on efficient land use. In other words, it is constructed to be close to the adjacent structure or building to increase the land area, and also to excavate the ground deeply to increase the utilization of the underground space, especially in urban buildings.

On the other hand, the deeper the excavation depth of the ground increases the deformation of the strata, which causes ground subsidence, causing damage to adjacent buildings, raising various complaints, and stopping construction.

The above-mentioned problem can be solved by blocking the excavated soil wall in the ground with a soil wall and then firmly supporting the soil wall with a support member. That is, as shown in Figure 1, the bands (wale, 70) are respectively installed on the facing wall 60, and both ends of the struts (strut, 80) are coupled to the band 70 to make the wall 60 It can be pushed outward to prevent stratum deformation due to various external forces.

At this time, a screw jack (50) is used to interpose between the strip 70 and the brace 80 to absorb the physical gap between them and to apply a preliminary compressive force to the brace 80. The screw jack 50 is composed of a screw shaft 52 and a pair of bases 54 which are spirally coupled to both ends of the screw shaft 52, as shown in FIG. Both ends of the screw shaft 52 are formed with male threads 52a in opposite directions, that is, right and left threads, respectively, and arms 52b protrude vertically at the center thereof, and the base 54 is formed at one side. It is formed with a female screw (54a) and having a ground plane (54b) coupled to the brace 80 or the band 70 on the other side.

The screw jack 50 installed between the belt 70 and the support 80 adjusts the distance between the pair of bases 54 by rotating the screw shaft 52 to adjust the distance between the belt 70 and the support 80. Widen or narrow to perform the function of the disturbance.

Here, the method of rotating the screw shaft 52 is to use a rotation moment, when the on-site worker hits the arm 52b in the direction to rotate using a hammer, the screw shaft 52 rotates by a predetermined angle correspondingly. This method is repeated to complete a predetermined task.

However, the above-mentioned method needs to correct the striking position every time in order to strike the protruding arm 52b correctly, and this work is very cumbersome and requires a lot of time, and thus the improvement of this is urgent. Do.

The present invention has been made to solve the problems as described above in the construction of the screw jack, the engaging portion coupled to the screw shaft and the arm and rotates with the screw shaft, coupled to the locking portion by the operator is caught by the operator It is to provide a spanner for screw jacks comprising a bag to rotate the part and to combine the locking portion and the bag with a latch device to assist in completing the construction work in a convenient and fast time.

In addition, the present invention is to provide a screw jack spanner that can be automatically installed and removed with a large rotation force by adding an automatic clamping device having a hydraulic cylinder.

1 is a view showing the construction of a conventional belt and brace.

2 is a perspective view of a general building screw jack.

3a and 3b is a perspective view according to a first embodiment of the present invention.

4 is an operation principle according to a first embodiment of the present invention.

5 is a perspective view of a bag according to a second embodiment of the present invention.

6 is a state diagram used in accordance with a third embodiment of the present invention.

7 is a configuration diagram according to a fourth embodiment of the present invention.

<Description of the code used in the main part of the drawing>

10: locking portion 12: locking projection

14: guide groove 16: latch gear

22: hinge 24: clamp

30: bag 32: latch device

34: latch 36: switching shaft

38: guide block 39: handle

90: automatic clamping device 94: hydraulic cylinder

96: Link 98: Work Block

The present invention is in the form of a disk having a through hole for receiving the screw shaft in the center of handling, ie installation and removal of a screw jack comprising a screw shaft and a base, at equal intervals on one side of the disk A circular protrusion arranged in an axial direction and occupying an empty space between several arms formed by radially protruding from the central portion of the screw shaft, and a locking protrusion that is engaged with the rotating function when rotated, and a disc on an opposite side of the disc. A guide groove formed along an outer circumference, and a ring-shaped latch gear which is coupled along the circumference at a position spaced from the guide groove in the center direction, that is, at the edge of the through hole, and has gear teeth on the outer surface thereof. ), Which is divided into semicircles, has a hinge on one side of the partition, and a clamp on the other side, which can be detached from the screw shaft. Hanging part composed of a structure; And a latch device having a bidirectional latch engaged with the latch gear at the front, a guide block formed to protrude downward from the front lower surface, and inserted into the guide groove so as to rotate along a circular orbit, and protrude rearward. A bag portion having a handle for pivoting the screw shaft by applying rotational force to the locking portion; Characterized in that configured to include.

In addition, the present invention is characterized in that it is formed to protrude from the lower end of the locking projection and having a locking step for preventing the locking portion from being separated from the arm of the screw shaft.

In addition, the present invention is characterized by having a switching shaft for switching the action direction of the latch engaged with the latch gear and a hexagonal groove for receiving the hexagon wrench at the tip of the switching shaft to switch the locking direction to the hexagon wrench. .

In addition, the present invention is characterized by having a switching lever that can rotate the conversion shaft by hand instead of the hexagonal groove of the conversion shaft at the tip of the conversion shaft to manually switch the locking direction.

In addition, the present invention is characterized in that it comprises a rod-shaped fastening bar (tightening bar) is fitted to the handle and adds rotational force to the screw shaft and one side is open.

In addition, the present invention is a hydraulic unit for supplying high-pressure oil as the working medium as the working fluid, a hydraulic cylinder installed vertically on the ground and receiving the hydraulic oil from the hydraulic unit to move vertically up and down, and is attached to the hydraulic unit A hydraulic valve for controlling the hydraulic oil supplied to the hydraulic cylinder to switch the operation direction of the hydraulic cylinder, a bar-shaped connecting link coupled to an upper end of the hydraulic cylinder and installed vertically upwards, It is provided with a self-locking device configured to include a work block hinged to the top and having an insertion hole for receiving the handle, according to the vertical movement of the hydraulic cylinder through the connecting link and the work link by a certain angle It is characterized in that the screw jack can be automatically installed and removed by rotating the swing.

Looking at the configuration of the embodiment according to the present invention having the above-described structural features in detail with reference to the accompanying drawings as follows.

3a and 3b is a perspective view according to a first embodiment of the present invention, Figure 4 is an operating principle according to a first embodiment of the present invention, Figure 5 is a perspective view of a bag according to a second embodiment of the present invention 6 is a state diagram used in accordance with a third embodiment of the present invention, and FIG. 7 is a configuration diagram according to a fourth embodiment of the present invention.

The screw jack spanner S according to the first embodiment of the present invention is coupled to the locking portion 10 and the locking portion 10 which are coupled to the screw shaft 52 of the screw jack 50 to rotate together and the locking It comprises a bag portion 30 for rotating the portion (10).

The locking portion 10 has a through hole 18 for accommodating the screw shaft 52 in the center as a disc shape, and is formed to protrude in the axial direction from one side thereof and the arms 54b of the screw shaft 52. A guide groove 14 inserted into an empty space between and provided with an arm 54b and four engaging protrusions 12 and formed along the circumference of the edge of the opposite side of the disc, and from the guide groove 14 to the center. It is configured to include a ring-shaped latch gear 16 coupled to the circumference of the edge of the through hole 18 spaced by a certain distance.

The locking projections 12 are inserted between the arms 54b of the screw shaft 52 so as to be circularly arranged at equal intervals so as to be coupled to the arms 54b. The locking projection 12a is formed to protrude inward and to the left and right at the lower end thereof so as not to be separated in the axial direction from the arm 54b.

The guide groove 14 is formed in the front circumference along the circumference of the cross-section of the shape that is commonly referred to as 'tee groove', that is, the shape of the 'T' of the English alphabet upside down, coupled with the bag portion 30 and guided. It plays a role.

The latch gear 16 has a ring shape having gear teeth on its outer circumferential surface and interacts with the bag portion 30. This part will be described later.

On the other hand, the locking portion 10 is formed in two parts to be detachable to the screw shaft 52, provided with a hinge 22 on one side divided, and the clamp 24 on the other side is configured to be easily removable do. Of course, the latch gear 16 is also divided.

In addition, the pair of surfaces formed by the division and abutting each other to form a coupling groove 28 and the engaging projection 26 in the shape of each uneven, so that the engaging portion 10 can be easily assembled at the correct position, the coupling Later, secure each other. The coupling grooves 28 and the coupling protrusions 26 are formed at two positions on the hinge 22 and the clamp 24, respectively.

The bag portion 30 includes a latch device 32 at the front side, a guide block 38 formed to protrude downward from the front lower surface, and a handle 39 formed at the rear side. In addition, the bag portion 30 has a space for accommodating the latch device 32.

As shown in FIG. 4, the latch device 32 includes a latch 34 engaged with a gear of the latch gear 16, and the latch 34 has a square bar shape. The rear end of the bag 30 is supported and the middle part is supported by the compression spring 35 and the stop pin 33 so that the other end, that is, the end opposite to the latch gear 16 has a constant movable range. It is composed.

Two latches 34 may be provided symmetrically with respect to the front and rear axes of the bag part 30 to perform locking functions in both directions. The action of the latch 34 on the latch gear 16 is implemented by rotating the switching shaft 36 at an angle. The triangular switching cam 37 eccentrically coupled to the switching shaft 36 is latched. When the 34 is pushed outward, the latch 34 is released from the gear of the latch gear 16 to release the locking function, and the latch 34 on the other side which is not affected by the switching cam 37 is The compression spring 35 is protruded inward to the position allowed by the stop pin 33 to engage the latch gear 16 to counteract rotation.

Here, the switching shaft 36 is provided with a hexagonal groove 36a at the tip, and when the hexagonal wrench is inserted into the hexagonal groove 36a, the switching shaft 36 can be easily rotated.

In addition, as shown in the second embodiment shown in FIG. 5, it is preferable to form the switching lever 36b at the tip of the switching shaft 36 so that the switching shaft 36 can be operated by hand.

The guide block 38 is formed to have a cross section (English letter 'T') in a shape corresponding to the cross section of the guide groove 14 to be fitted, and the latch 34 and the latch gear 16 according to a predetermined operation. And the bag portion 30 on the circular orbit of the guide groove 14 to rotate or stop.

The handle 39 transmits the rotational force applied by the operator to the locking portion 10 through the latch device 32.

On the other hand, the bag portion 30, as in the third embodiment shown in Figure 6, one side is open with a rod-shaped tightening bar (tightening bar, 40) fitted to the handle 39, the screw shaft 52 It is desirable to be able to apply a large rotational force to the.

On the other hand, the spanner (S) of the above-described configuration is a manual type, it is suitable to use when the relatively small preceding load, that is, the compressive force applied to the surface excavated through the brace 50 is less than 5 tons. If more than 5 tons of preload is required, as shown in the fourth embodiment shown in Figure 7, when the screw jack 50 is installed by tightening the handle 39 in the vertical motion of the hydraulic cylinder 94, the brace ( 50) can carry more than 5-10 tonnes of preload. In addition, the spanner S may be automatically used instead of manually.

The configuration of the fourth embodiment shown in FIG. 7 is an example in which an automatic fastening device 90 is added to the screw jack spanner S so that the spanner can be used in an automatic manner, and the automatic fastening device 90 is a high-pressure oil. Hydraulic unit 92 for supplying the hydraulic fluid as the working medium, hydraulic cylinder 94 for linearly moving up and down by receiving hydraulic oil from the hydraulic unit 92, and attached to the hydraulic unit 92, and the hydraulic cylinder A hydraulic valve 93 for controlling the hydraulic oil supplied to the 94 to switch the operation direction of the hydraulic cylinder 94, and a bar coupled to an upper end of the hydraulic cylinder 94 and installed vertically upward. And a work block 98 having a connection link 96 having a shape and an insertion hole 98a hinged to an upper end of the connection link 96 at a lower portion thereof and accommodating the handle 39 thereon. do.

In addition, the automatic fastening device 90 is preferably provided with a work platform 91 provided with wheels to accommodate the components such as the hydraulic unit 92 and the hydraulic cylinder 94 and to facilitate movement.

The hydraulic cylinder 94 is provided at the bottom with a footrest 94a for firmly and securely supporting the thrust such as tension force, compression force, etc. generated during the operation of the spanner (S).

The connecting link 96 transmits the action force of the hydraulic cylinder 94 to the working block 98 and swings the rotary motion of the working block 98 to rotate the handle 39 and the hydraulic cylinder 94. Absorbs the deviation of displacement caused by vertical movement. That is, the connection link 96 is rotated by the work block 98 and the hinge pin 99 to allow the work block 98 to rotate in accordance with the rotation of the handle 39. Minimize the error of the movement displacement between the handle 39 and the work block 98 derived due to the interaction of the rotational motion of the work block 98 and the linear motion of the hydraulic cylinder 94.

In addition, the connection link 96 is provided with a plurality of links formed in different lengths to handle all of the screw jack 50 at any altitude, and replace the appropriate connection link 96 according to the working height It is preferable to use.

The working block 98 is rotationally treated by the hinge pin 99 at the upper end of the link link 96, and has an insertion hole 98a through which the handle 39 is received. The linear motion force transmitted through the 94 and the connecting link 96 acts as a rotational motion force on the handle 39. That is, the handle 39 is actually turned to rotate the locking portion 10.

On the other hand, the distance between the center of rotation of the working block 98 with respect to the connecting link 96 and the center of the insertion hole (98a) is preferably short, it is more preferably formed to match. In addition, it is also conceivable to form the working block 98 in a ring shape having a hole for accommodating the handle 39, and may be simply implemented by replacing with an eye bolt.

Looking at the operation of the embodiment of the above-described configuration as follows.

As shown in FIG. 3B, when the clamp 24 of the spanner S is released and spread to both sides, the clamp 24 is refilled and the clamp 24 is refilled as if the outer surface of the male screw 52a is wrapped. The furnace spanner S is coupled to the screw jack 50. Here, the locking projections 12 and the locking projections 12a should be correctly inserted between the arms 54b of the screw shaft 52, and the bag portion 30 is any of both sides of the divided locking portions 10. It is coupled to one side of.

After the work preparation is completed, the hexagonal wrench is inserted into the hexagonal groove 36a and the turning shaft 36 is rotated to determine the required rotational direction. Turn the bag 30 while holding the screw shaft 52 is rotated together with the locking portion (10). This is illustrated by the solid arrows in FIG. 6.

If you take the rotation ready position again while holding the sack portion 30, this time only the sack portion 30 rotates back to the rotation ready position. This is illustrated by the dashed line arrow in FIG. 6.

The above operation is repeated as many times as necessary to complete the operation.

The principle of the above-described operation can be easily seen with reference to FIG. 4. When the latch 34 is pushed inwardly by the compression spring 35 and supported by the stop pin 33, the end of the latch 34 is protruded. Engaging with the latch gear 16, the rotation of the bag 30 is transmitted to the latch gear 16 through the latch 34 and rotates the locking portion (10).

On the other hand, when the switching shaft 36 is rotated to change the action of the switching cam 37, the latches 34 respectively provided at two left and right positions are selectively engaged with the latch gears 16 so that the locking direction is switched. . At this time, the rotation of the switching shaft 36 is carried out by inserting and turning a hexagon wrench in the hexagon groove 36a of the switching shaft 36, as in the second embodiment shown in FIG. It is preferable to form the switching lever 36b at the tip so that the switching shaft 36 can be operated by hand.

In addition, when the fastening bar 40 is inserted into the handle 39, a large rotational force can be applied to the screw shaft 52 by the principle of the lever.

On the other hand, the manual method by the attraction has a limit in the rotational force. In other words, the screw jack 50 installed by the manpower in a manual manner can act on the surface excavated through the brace 80, the preceding load is less than 5 tons.

If more than 5 tons of preload is required, the automatic fastening device 90 is added to the construction. Then, the front load of 5 ~ 10 tons or more can be applied to the brace 50, the method is as follows.

First, install the hydraulic cylinder 94 at the lower portion of the screw jack 50 to be handled, select the connection link 96 suitable for the working height, and combine with the hydraulic cylinder 94 and the working block 98, When the handle 39 is inserted into the insertion hole 98a of the work block 98, work preparation is completed. Next, the hydraulic valve 93 is opened and closed and the hydraulic cylinder 94 is moved up and down according to the required process to rotate the handle 39 through the connecting link 96 and the work block 98 to screw the jack. (50) Can be clamped or solved.

By using the automatic fastening device 90, it is possible to rotate the screw shaft 52 of the screw jack 50 with a large force, so that the brace 80 can exert a larger load, that is, 5 to 10 tons or more of the preceding load. In addition, the spanner S may be automatically used through the hydraulic valve 93.

The present invention is not limited to the above-described embodiment, various modifications are possible within the following utility model registration claims.

The present invention of the above-described configuration, the screw jack spanner is coupled to the arm formed on the screw shaft and the locking portion to rotate with the screw shaft, coupled to the locking portion to transmit the rotational force by the operator to the screw shaft through the locking portion Consists of a bag, by the bidirectional latch device provided in front of the bag has the effect that can be installed or removed the screw jack in a convenient and fast time.

In addition, the present invention can rotate the handle with a large force by using the output of the hydraulic cylinder can act a large leading load on the brace, there is an effect that can be constructed firmly and stably by minimizing the gap between the support members.

In addition, the present invention can automatically handle the screw jack, that is, there is a convenient effect can be installed and removed.

Claims (6)

In the handling, ie installation and removal of a screw jack comprising a screw shaft and a base, a disk shape having a through hole for receiving the screw shaft at the center thereof, the circular arrangement being arranged at equal intervals on one side of the disk. A projection projecting in the axial direction and occupying an empty space between several arms formed by radially projecting from the central portion of the screw shaft, and a locking projection that performs a locking function during rotation, and a circumference of the outer disk on the opposite side of the disk And a guide groove formed along a ring-shaped latch gear coupled to the circumference at a position spaced apart from the guide groove in the center direction, that is, at the edge of the through hole, and having gear teeth formed on an outer surface thereof. And divided into semicircles and provided with a hinge on one side of the division and a clamp on the other side to be detachable to the screw shaft. Configured hook portion; and A latch device having a bidirectional latch engaged with the latch gear at the front, a guide block formed to protrude downward from the front lower surface, and inserted into the guide groove and rotatable along a circular trajectory; And a bag portion formed with a handle for pivoting the screw shaft by applying rotational force to the locking portion. The method of claim 1, The locking projection is formed by protruding from the lower end of the locking projection and a screw jack spanner, characterized in that it has a locking jaw to prevent the locking portion is separated from the arm of the screw shaft. The method according to claim 1 or 2, The latch device is provided with a switching shaft for switching the action direction of the latch engaged with the latch gear and a hexagonal groove for receiving a hexagon wrench at the tip of the switching shaft to switch the locking direction to the hexagon wrench Spanner for Jack. The method according to claim 1 or 2, The latch device has a switching shaft for switching the operation direction of the latch engaged with the latch gear, the switching shaft is provided with a switching lever to rotate the switching shaft by hand at the tip to manually switch the locking direction. Spanners for screw jacks. The method of claim 1, And a rod-shaped tightening bar fitted to the handle and applying rotational force to the screw shaft and having one side open. The method according to claim 1 or 2, A hydraulic unit for supplying high pressure oil as working oil as a working medium, A hydraulic cylinder installed vertically on the ground and supplied with hydraulic fluid from the hydraulic unit to linearly move up and down; A hydraulic valve attached to the hydraulic unit to control hydraulic oil supplied to the hydraulic cylinder to switch the operation direction of the hydraulic cylinder; A bar-shaped connecting link coupled to an upper end of the hydraulic cylinder and installed vertically upward; And a self-locking device configured to include a work block hinged to an upper end of the connection link and having an insertion hole for receiving the handle. The screw jack spanner, characterized in that the screw jack can be automatically installed and removed by rotating the swing by a predetermined angle.