KR200347541Y1 - Pin Jigger for easily adjusting it's Height - Google Patents

Abstract

The present invention relates to a pin jig in which a block used for assembling a ship is seated and supported, and in particular, a pin that can easily adjust the height of the first pipe with a small force using a hand lever or a transmission means can be easily and conveniently adjusted. It's about the jig.

In the pin jig of the present invention, a support rod is inserted into an upper end portion of a first tube which has a plurality of pinholes spaced at regular intervals in a longitudinal direction on its outer peripheral surface, and a lower end portion of the first tube is inserted into a central hole of a second tube. In the pin jig for setting the height by inserting the pin into the pinhole of the first tube and the pinhole of the second tube arranged in a row, the second tube is a bracket attached to a predetermined position on the outer peripheral surface, and rotated on the bracket A sprocket wheel that is supported, a worm gear directly connected to the sprocket wheel, and a drive means connected directly to the worm gear to transfer power, and a through hole is drilled at a predetermined position of the second pipe where the sprocket wheel is located. The first pipe has a longitudinal groove on its outer circumferential surface, and one end and the other end of the chain are permanently fixed to the upper end and the lower end of the longitudinal groove, and the teeth of the sprocket wheel pass through the through hole to the chain. As it rotates the hand lever in a clockwise or counterclockwise direction, the lifting and lowering of the first pipe is adjusted.

Description

Pin Jigger for easily adjusting it's Height

The present invention relates to a pin jig in which a block used for assembling a ship is seated and supported, and in particular, a pin that can easily adjust the height of the first pipe with a small force using a hand lever or a transmission means can be easily and conveniently adjusted. It's about the jig.

Ships are made up of numerous blocks joined by welding or the like, each of which has a variety of sizes and weights ranging from tons to hundreds of tons, as well as different curvatures in different parts. The pin jig serves to support these blocks from below, and their specific configurations are as follows.

1 shows an exploded perspective view of a conventional pin jig, Figure 2 shows a combined perspective view of a conventional pin jig. As shown in FIGS. 1 to 2, the pin jig P is composed of a supporting rod 1, an auxiliary pipe 2, a first pipe 3, and a second pipe 4. Referring to FIG. 1, the support rod 1 includes a head 11 contacting the block and a body 12 formed on the outer circumferential surface thereof so as to be screwed onto the auxiliary pipe 2. Here, the thread provided in the body 12 of the support rod is for fine adjustment of the height of the pin jig. The auxiliary pipe (2) reinforces the rigidity of the first pipe (3) and in conjunction with the support rods to enable the fine lifting of the support rod (1). The first pipe (3) is a hollow tube and the pinhole 32 is perforated at regular intervals on the outer peripheral surface thereof. The second tube 4 is a hollow tube, the pinhole 42 is drilled at regular intervals on the outer circumferential surface thereof, the pin 43 is provided at the upper end thereof, and the support plate 44 is radially attached to the lower end thereof. Here, the pinholes 32 and 42 of the 1st pipe | tube and the 2nd pipe | tube are drilled one by one on the opposing surface of a 1st pipe | tube and a 2nd pipe | tube, respectively.

Referring to FIG. 2, the auxiliary pipe 2 is inserted into the central hole 31 at the upper end of the first pipe 3, and then permanently coupled by welding, and the body 12 of the support rod 1 is connected to the auxiliary pipe 2. ) To the center hole 21 of. Then, the first pipe 3 is inserted into the center hole 41 of the second pipe to set an appropriate height, and then the pin 43 is passed through the pin hole 42 of the second pipe. By assembling through the pinhole 42 in the corresponding direction of the second pipe, assembly of the pin jig is completed.

Then, the height of the pin jig is adjusted by removing the pins inserted into the pinholes 32 and 42 and then manually lifting the pipe up or down and inserting the pin 43 into the pinholes 32 and 42 again. do.

Figure 3a is a state of use of the pin jig showing a state in which a plurality of pin jigs are laid apart at regular intervals on the base (G). Referring to Figure 3a, the pin jig (P) is spaced at regular intervals on the base (G) several to hundreds are installed, the support plate 44 of the second tube to support the block firmly on the base (G) It is permanently fixed by welding. The number of pin jigs to be installed is determined in consideration of the weight and curvature of the block to be supported. Thus, after fixing the pin jig P on the base G, as shown in Fig. 3b, a predetermined block is mounted on the end of the supporting rod of the first tube of the pin jig using a crane. Of course, before mounting the block, taking into account the curvature of each point of the block, the height of the pin jig supporting the point should be set in advance according to the method described above.

The pin jigs seen above have various sizes and weights, but have a longitudinal length of about 1.5 m to 2.5 m and a weight of 20 kg or more, and the weight of the first pipe exceeds 10 kg. Up to now, in the field, the workers adjust the height of the pin jig by manually lifting or lowering the first pipe weighing several tens of kilograms, so it takes much manpower and time to adjust the height of the pin jig. There was a problem that a safety accident occurred. Furthermore, this problem is more serious in the block assembly of ships, which require direct adjustment of the heights of pin jigs from as few as tens to hundreds.

Therefore, the applicant has developed the present invention to simply adjust the lifting and lowering of the first tube using a chain transmission method.

The present invention has been made to solve the problems of the prior art, the object of the present invention, the chain fixed to the longitudinal groove of the first pipe, directly connected to the worm gear driven by a hand lever or a drive motor By driving the sprocket wheel, it is possible to easily adjust the elevating up and down of the first pipe, significantly reducing the installation time and work force of the pin jig, and the pin jig, which is easy to adjust up and down, which can prevent safety accidents. To provide.

Another object of the present invention is to provide a pin jig that can block the positional change caused by the weight of the first pipe by using the worm gear.

1 is an exploded perspective view of a conventional pin jig.

Figure 2 is an assembled perspective view of a conventional pin jig.

Figure 3a is a view showing a state in which a plurality of pin jigs are laid apart at regular intervals on the base.

FIG. 3B is a view showing a state in which a block having a curved surface is seated on the pin jig shown in FIG. 3A;

Figure 4 is a front view of the pin jig according to an embodiment of the present invention showing a longitudinal section of the bracket to which the sprocket wheel is fixed.

5 is a longitudinal cross-sectional view of a pin jig according to an embodiment of the present invention in which a sprocket wheel supported on a bracket of a second pipe drives a chain fixed to a longitudinal groove of the first pipe to adjust the lifting and lowering of the first pipe; .

FIG. 6 is a cross-sectional view along the line C-C in FIG. 5, illustrating one embodiment of a configuration in which one end and the other end of the chain are attached to the upper and lower parts of the first pipe.

FIG. 7 is a cross-sectional view along the line A-A of FIG. 4, showing a working relationship in which the worm wheel drives the sprocket wheel.

FIG. 8 is a longitudinal sectional view taken along the line B-B in FIG. 4, illustrating a working relationship in which a worm directly connected to a hand lever drives a worm wheel; FIG.

Figure 9 is a front view of a pin jig according to another embodiment of the present invention equipped with a drive motor and a reducer.

10 is a longitudinal sectional view taken along the line D-D of FIG.

11 is a perspective view of a pin jig according to another embodiment of the present invention.

The present invention has the following configuration to achieve the above object.

According to the first embodiment of the present invention, the pin jig of the present invention, the support rod is inserted into the upper end of the first pipe is a plurality of pinholes spaced in the longitudinal direction at regular intervals on the outer peripheral surface, the lower end of the first pipe Inserting the pin into the center hole of the second pipe and inserting the pin into the pinhole of the first pipe and the second hole arranged in a line, the pin jig setting the height, wherein the second pipe has a predetermined position on the outer circumferential surface thereof. A bracket attached to the bracket, a sprocket wheel rotatably supported by the bracket, a worm gear directly connected to the sprocket wheel, and a driving means connected directly to the worm gear to transmit power, wherein the sprocket wheel is located A through hole is drilled at a predetermined position of the second pipe, and the first pipe has a longitudinal groove on its outer circumferential surface, and one end and the other end of the chain are permanently fixed to the upper end and the lower end of the longitudinal groove. Wheel As the tooth is engaged with the chain through the through hole, the lifting and lowering of the first pipe is controlled as the hand lever is rotated clockwise or counterclockwise.

According to the second embodiment of the present invention, the pin jig of the present invention, in the first embodiment, the worm gear is a worm wheel having a worm wheel shaft directly connected to the axis of rotation of the sprocket wheel, and directly connected to the drive means It is made of a worm having a worm shaft, the worm and the worm wheel is characterized in that the interlocking.

According to a third embodiment of the present invention, in the pin jig of the present invention, in the first to second embodiments, the driving means is a hand lever.

According to the fourth embodiment of the present invention, in the pin jig of the present invention, in the first to second embodiments, the driving means may be directly connected to the reducer directly connected to the worm shaft of the worm, Characterized in that the drive motor having a drive shaft.

Applicants describe the present embodiments of the present invention in detail with reference to the accompanying drawings.

Figure 4 is a front view of the pin jig according to an embodiment of the present invention showing a longitudinal section of the bracket on which the sprocket wheel is fixed, Figure 5 is a sprocket wheel supported on the bracket of the second pipe is fixed to the longitudinal groove of the first pipe The longitudinal cross-sectional view of the pin jig according to an embodiment of the present invention for controlling the lifting and lowering of the first pipe by rotating the chain, Figure 6 is a cross-sectional view along the line CC of Figure 5, one end and the other end of the chain It is a figure which shows one Example of the structure attached to the upper and lower parts of a 1st pipe | tube.

The pin jig of the present invention consists of a supporting rod (1), an auxiliary pipe (2), a first pipe (5), and a second pipe (6).

Since the supporting rods 1 and the auxiliary pipes 2 are the same as those of the conventional pin jig, the detailed description thereof will be replaced with the description of the conventional pin jig. Below, the structure different from the conventional pin jig among the structure of a 1st pipe | tube, and the structure of a 2nd pipe | tube are demonstrated in detail.

4 to 6, the first pipe 5 has a longitudinal groove 57 formed in the longitudinal direction on its outer circumferential surface, and the chain CH is fixed to the longitudinal groove 57. The depth H of the longitudinal groove 57 is the distance between the outer diameter of the first tube and the inner diameter of the second tube such that the first tube 5 having the chain fixed therein is slidable in the center hole 61 of the second tube. And the longitudinal length of the chain (CH) is appropriately selected in consideration of the maximum and minimum height of the elevating of the first pipe. One end and the other end of the chain (CH), as shown in Figure 6, by placing the bracket 54 at a predetermined position on the upper end or lower end of the first tube, or by direct welding on the outer peripheral surface of the first tube, etc. Are combined. As the chain CH, various types of chains such as a block chain, a roller chain, and a silent chain may be used. The above-mentioned longitudinal groove 57 is preferably formed into a concave shape by drawing, but may be a longitudinal through hole drilled from the outside of the first tube to the inside.

The second pipe 6 includes a bracket 65, a sprocket wheel 66, a worm gear box 672, and a hand lever 675.

Referring to FIG. 7, one pair of the brackets 65 are provided on the outer circumferential surface of the second pipe, one pair in the corresponding direction in the longitudinal direction, and the sprocket wheel 66 is integral with the rotation shaft 661 and the rotation shaft 661. Both ends of the) are fixed to the bracket 65 by placing the bearings 664, respectively, so that they rotate freely with respect to the bracket. In addition, a through hole 665 is drilled at a predetermined position of the outer circumferential surface of the second pipe in which the sprocket wheel is located, so that the teeth 662 of the sprocket wheel are fixed to the first pipe through the through hole 665. ) Is engaged. The through hole 665 is drilled to an appropriate size in consideration of the specification of the sprocket wheel.

As illustrated in FIGS. 7 to 8, the worm gear box 672 includes a worm wheel 67 and a worm 674 therein, and the worm wheel 67 is sporkized through the worm wheel shaft 671. The worm 674 is directly connected to the rotation shaft 661 of the rocket wheel 66, and the worm 674 is directly connected to the hand lever 675 through the worm shaft 673. When the hand lever 675 is rotated, the worm 674 is rotated. The worm wheel 67 and the worm wheel drive the sprocket wheel 66 to drive the chain CH to raise and lower the first pipe. Here, the rotation shaft of the sprocket wheel, the worm wheel shaft of the worm wheel, and the worm wheel shaft of the worm wheel are supported by placing bearing members 676, 671a and 664 on the bracket and the gearbox, respectively, so that they can be freely rotated relative to the bracket or gearbox. . As is known, the worm gear has a function of preventing the reversal, that is, the worm wheel can be driven in the worm wheel but the worm wheel cannot be driven. Since the first pipe has a weight of several tens of kilograms, the positional change occurs due to its own weight after the ascent and descent.

Referring to Figure 5, looks at the working relationship of the present invention.

When the worker rotates the hand lever 675 clockwise or counterclockwise, the sprocket wheel 66 is driven according to the interlocking relationship between the worm and the worm wheel in the gearbox 672 described above, and the sprocket wheel 66 As the tooth 662 engages the chain via the through hole 665 to move the chain up and down, the first tube moves up and down.

9 to 10 show a pin jig according to another embodiment of the present invention equipped with a drive motor and a reducer. 9 to 10, the worm shaft 673 of the worm 674 is directly connected to the reducer 91, and the reducer 91 is directly connected to the shaft 92 of the drive motor 93. And the drive motor are mounted in the case (9). In accordance with the operation of the switch (S), the rotational direction of the drive motor is changed, thereby raising and lowering is electrically controlled. In this case, a power source applied to the drive motor may use a DC power source or an AC power source.

11 is a perspective view of another pin jig of the present invention. As shown in FIG. 11, an arc-shaped pin groove 62 'is formed in the upper end of the second tube, and the pin 63' is inserted into the pin hole 32 of the first tube via the upper pin groove 62 '. Fix the height of the first pipe. Here, the pin groove 62 'serves to engage the pin 63', thereby preventing the first pipe from rotating together with the support rod when adjusting the fine height with the support rod, so as to facilitate the adjustment of the fine height.

Applicant has described the embodiments of the present invention, but it is obvious that various changes and modifications that implement the technical idea of the present invention also fall within the scope of the present invention.

The present invention can achieve the following effects by the above configuration.

The present invention can easily adjust the height of the pin jig by using a driving means and a chain transmission method with only a small amount of force, thereby significantly reducing the work time and work force required for the block assembly work of the ship, and furthermore the height of the pin jig. It has the effect of preventing safety accidents that occur during the adjustment process.

The present invention has the effect of using the worm gear to prevent the positional change caused by the weight of the first pipe.

Claims (4)

The support rod is inserted into the upper end of the first tube, the plurality of pin holes spaced apart at regular intervals in the longitudinal direction on the outer circumferential surface, and the pins are aligned in a row after inserting the lower end of the first tube into the center hole of the second tube. In the pin jig to insert the pin hole of the first tube and the pin hole of the second tube to set the height, The second pipe is a bracket attached to a predetermined position on the outer circumferential surface, a sprocket wheel rotatably supported on the bracket, a worm gear directly connected to the sprocket wheel, and a drive means for transmitting power directly connected to the worm gear Includes, the through hole is drilled at a predetermined position of the second pipe in which the sprocket wheel is located, The first pipe has a longitudinal groove on the outer peripheral surface and one end and the other end of the chain is permanently fixed to the upper end and the lower end of the longitudinal groove, And the teeth of the sprocket wheel are engaged with the chain via the through hole so that the lifting and lowering of the first pipe is adjusted as the hand lever is rotated clockwise or counterclockwise. The worm gear according to claim 1, wherein the worm gear comprises a worm wheel having a worm wheel shaft directly connected to the rotation shaft of the sprocket wheel, and a worm having a worm shaft directly connected to the driving means, wherein the worm and the worm wheel are interlocked with each other. The pin jig characterized by. The pin jig according to any one of claims 1 to 2, wherein the driving means is a hand lever. The pin jig according to any one of claims 1 to 2, wherein the driving means comprises a drive motor having a reduction gear directly connected to the worm shaft of the worm and a driving motor directly connected to the reduction gear.