KR101178390B1 - Separate prevention structure of the boring handle for split tees - Google Patents

Abstract

PURPOSE: A structure for preventing the separation of a boring handle for split tees is provided to prevent the separation of a boring handle by using a locking ball. CONSTITUTION: A structure for preventing the separation of a boring handle(A) for split tees comprises a wrench shaft(1), a locking member, and a handle bar(3). A cutter(830) is moved up and down in a split tee. The wrench shaft is inserted in the wrench groove(832) formed in the center portion of the cutter and controls the moving of the cutter. The assembling state of the cutter and the wrench shaft is maintained by using the locking ball(21) of a locking member. The handle bar is assembled in the upper portion of the wrench shaft detachably and moves the cutter vertically by rotating the wrench shaft.

Description

Separation prevention structure for diverting piercing handle {SEPARATE PREVENTION STRUCTURE OF THE BORING HANDLE FOR SPLIT TEES}

The present invention relates to a punching handle for the branching tee, and more particularly, in the branching operation of the gas pipe using the branching tee, the drilling for the branching tee so that the assembly state of the drilling handle can be maintained firmly even at the gas leakage pressure during the main pipe drilling. A separation prevention prevention structure of the handle

Since the 1990s, the annual average growth rate of domestic gas energy consumption has been increasing to about 12.6%, and demand demand has also started to increase significantly, leading to a nationwide supply of gas energy. Pipeline construction and expansion work has been ongoing since then.

On the other hand, in order to use the gas supplied through the pipe network at the demand price, it is necessary to split the gas pipe. In recent years, the gas supply is stopped by shutting off the gas supply by closing the pipe valve or blocking the gas flow path with a stopper. It is well known that split tees, which enable branching of gas pipelines under on-line conditions, are now being applied to branch sites.

FIG. 1A is a cross-sectional view illustrating a linking structure of a conventional branching tee and a punching handle, and FIG. 1B is an exemplary view illustrating a separation of the puncturing handle from a branching tee.

As shown in FIG. 1, the branch tee 800 according to the related art is a vertical boring tube 810 that is fused (anastomosis) coupled to the main pipe p-1 to which gas is supplied, and the “ㅓ” ruled by a horizontal discharge pipe 820 that can be connected to the branch pipe (p-2) for branching from the main pipe (p-1) as it extends from one side of the perforated pipe (810) While forming a shape, the cutter 830 cuts a portion of the main pipe p-1 by downward movement by screw-driven tightening in the perforated pipe 810. It is composed.

In addition, the lower portion of the perforated pipe 810 is further formed integrally with an arc-shaped flange portion 811 that can be in close contact with the outer surface of the main pipe (p-1), the bottom of the flange portion 811 is the main pipe ( A fusion member 811-1 for fusion bonding with p-1) is further provided.

A female thread 810-1 is formed on an inner diameter surface of the perforated pipe 810, and a female thread 810-1 is formed on an outer diameter surface of the cutter 830. By forming the male thread 831 corresponding to the above, the cutter 830 can be moved up and down by a screwing method.

On the other hand, in order to make the downward movement by rotating the cutter 830 in a state of assembling the upper side of the cutter 830 for cutting the one part of the main pipe (p-1) "T" shaped drilling handle ( 900 is further provided separately, the hexagonal tip 910 is formed at the end of the shaft portion of the drilling handle (900).

And, the upper side of the perforated pipe 810 fastening and assembling a closing cap 840 to prevent the outflow of gas, the center of the top of the perforating pipe 810 and the closing cap 840, the above-mentioned drilling handle First and second through holes 810a and 840a through which the shaft tips of 900 are inserted, respectively, are penetrated, and the hexagonal tips 910 of the drilling handle 900 are inserted into the upper center of the cutter 20. A wrench groove 831 for fitting is formed inward.

According to the conventional branch tee 10, the flange portion 811 is brought into close contact with the main pipe (P-1), and then the fusion member 811-1 is fusion-bonded with the perforated pipe 810. Next, assembling and connecting the branch pipe (p-2) to the discharge pipe (820).

In this state, the hexagonal tip 910 of the drilling handle 900 is fitted into the wrench groove 832 of the cutter 830, and then the above-mentioned drilling handle 900 is rotated in a clockwise direction so that the cutter ( The downward movement of 830 finishes the drilling operation in which a portion of the main pipe p-1 is cut.

As described above, after the drilling operation of the main pipe p-1 is completed, the cutter 830 is moved upward by rotating the drilling handle 900 again in the counterclockwise direction, thereby allowing the main pipe p to move upward. Gas passing through the cutout of -1) is smoothly supplied to the demand through the discharge pipe 820 and the branch pipe (p-2), thereby completing all the branching operations of the gas pipe.

However, during the drilling of the main pipe p-1 by the cutter 830, a phenomenon in which the gas supplied through the main pipe p-1 leaks at a strong pressure through the cutout occurs, As shown in FIG. 1B, the hexagonal tip 910 of the drilling handle 900 that is simply fitted into the wrench groove 832 is forcibly separated without overcoming its leakage pressure and cannot continue working. It may have caused a safety accident, such as making the puncture handle (900) from the branch tee (800) to the air to hit the operator's face.

Furthermore, as described above, when the above-mentioned drilling handle 900 bounces into the air, the hexagonal tip 910 of the drilling handle 900 is placed in the wrench groove 832 of the cutter 830 to continue the drilling operation. Aside from the hassle that can only be continued for work, it has been pointed out as the cause of fire explosion, injury and property damage caused by gas leakage.

An object of the present invention is to solve the above problems, the locking ball can be inserted at the same time as the locking member is provided with a locking member that can achieve the protrusion and accommodation of the locking ball from one end of the hexagonal tip. The periphery of the cutter is further formed in the wrench groove of the cutter, to provide a separation and separation prevention structure of the punching handle for the branch tee so that the drilling handle is not arbitrarily separated and separated from the cutter.

In order to achieve the above object, the present invention, in the branching of the pipe using a branch tee, inserted into a wrench groove formed in the center of the upper end of the cutter movable up and down inside the branch tee for cutting a portion of the main pipe. A wrench shaft adapted to manipulate movement of the cutter; A locking member for protruding a portion of the locking ball from one side of the lower end of the wrench shaft to maintain an assembled state between the cutter and the wrench shaft; And a handle bar which is detachably assembled to the upper end of the wrench shaft and rotates the wrench shaft in both directions to allow the cutter to move up and down.

In addition, the inner circumferential surface of the wrench groove, characterized in that the circumferential groove that can be inserted into the outer protrusion of the locking ball is further formed inward.

In addition, the wrench shaft, a lower hexagon tip for fitting to the wrench groove is formed at the lower end, the upper hexagon tip to be fitted into the handle bar is formed at the upper end, for receiving assembly of the locking member The vertical through hole is penetrated in the center along the longitudinal direction, so that the internal acceptance and some external protrusion of the locking ball is possible, a horizontal through hole communicating with the vertical through hole from one outer surface of the lower hexagonal tip is further formed. .

In addition, the locking member includes the locking ball, and makes a bidirectional rotation while being inserted and assembled into the vertical through hole, and a portion of the locking ball embedded in the horizontal through hole protrudes to the outside of the wrench shaft or is inside. The shaft pin to be accommodated as, and the shaft pin is fastened to the upper side, characterized in that the shaft pin is configured as an operation nut to achieve the simultaneous rotation during bidirectional rotation operation using a separate tool.

In addition, the handlebar is a bar (Bar) shape of a length suitable for holding with both hands, characterized in that the hand socket which can fit the wrench shaft therein is further protruded integrally from the lower center.

In addition, at the outer end of the inner diameter surface of the horizontal through, characterized in that the threshold for preventing the departure of the locking ball is further formed.

In addition, the shaft pin, a step that can be caught in the vertical through-hole end formed in the central portion of the wrench shaft in the longitudinal direction is extended to the bottom end, and the upper part of the proximal end of the step, the locking ball part A cutting end having an inward step is formed to be flat so that the intrinsic acceptance of the inner surface is possible, and an upper end thereof is characterized in that a pin screw thread for fastening assembly of the operation nut is formed.

As is apparent from the above description, the separation-and-separation prevention structure of the branching piercing handle of the present invention maintains a rigid assembly state in which the piercing handle is not separated from the branching tee even in the gas leakage pressure generated during the drilling of the main pipe. In addition, it has the effect of improving the work efficiency, such as not having any adverse effect on the work process when branching pipes.

In addition, due to the solid assembly state of the drill handles as described above, it is possible to prevent the occurrence of a fire explosion due to the safety accident and excessive leakage of gas, such as the punch handles spring up due to the gas leakage pressure to hit the operator's face. It has an effect.

In addition, it can lead to an increase in investment value and productivity in the same industry through the improvement of working environment based on the work environment improvement effect that can avoid the avoidance of the pipe branch work caused by the above-mentioned accidents, and increase the convenience of the residents. That is a very useful invention.

Figure 1a is a cross-sectional view showing a linkage structure of a conventional branch tee and punch handle.
Figure 1b is an illustration showing a phenomenon in which the puncture handle separated from the branch tee.
Figure 2 is an exploded perspective view showing the configuration of the punching handle for the branch tee according to the present invention.
Figure 3a and Figure 3b is an enlarged sectional view showing the main part of the locking relationship of the punching handle for the branch tee according to the present invention.
Figures 4a to 4c is a cross-sectional view of the use state showing an embodiment of the drill handle for the branch tee according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

Figure 2 is an exploded perspective view showing the configuration relationship of the forklift handle for branching according to the present invention, Figures 3a and 3b is an enlarged sectional view of the main portion showing the locking relationship of the hole fork for branching according to the present invention, Figure 4a to Figure 4c is a cross-sectional view of the use state showing an embodiment of the drill handle for the branch tee according to the present invention.

As shown in FIG. 2, the punching handle A for the branching tee according to the present invention is fitted to a cutter (FIGS. 1A and 830) capable of moving up and down inside the branching tee (FIGS. 1A and 800). Wrench shaft (1) to operate the movement of the cutter 830, and the locking ball 21 protrudes from one side of the lower end of the wrench shaft (1) to the cutter (830) and the wrench shaft (1) mutual Locking member (2) to maintain the assembled state of the liver and the wrench shaft (1) in a state that is detachably assembled on the upper end of the wrench shaft (1) by rotating the clockwise or counterclockwise direction to the cutter (830) ) Is configured to include a handle bar (3) to achieve the up, down movement.

The wrench shaft 1 is a means for manipulating the movement of the cutter 830 moved up and down in the perforated pipe 830 for the purpose of cutting a portion of the main pipe p-1. A lower hexagon tip 11 fitting into the wrench grooves (FIGS. 1A and 832) of the cutter 830 is formed at the lower end thereof, and the upper hexagon tip 12 fitting to the handlebar 3 is upper. It is formed at the front end, the vertical through hole 13 for receiving assembly of the locking member 2 is penetrated in the center along the longitudinal direction.

In addition, in order to enable the internal acceptance and partial external protrusion of the locking ball 21, a horizontal through hole 14 communicating with the vertical through hole 13 is formed through an outer surface of the lower hexagon tip 11. .

In addition, the outer end inner diameter surface of the horizontal through hole 14, it is preferable to further form a jaw 141 having the purpose of preventing separation and separation of the locking ball 21.

The locking member 2 protrudes the locking ball 21 to the outside of the lower hexagonal tip 11 so that the wrench shaft 1 can be locked to the cutter 830. As shown in FIGS. 2 and 3A, the locking ball 21 is partially inserted into the horizontal through hole 14 and inserted into the vertical through hole 13. Shaft pin 22 to make a bi-directional rotation in a state to be a portion of the locking ball (21) embedded in the horizontal through hole 14 to be projected to the outside of the wrench shaft (1) or received inside As the shaft pin 22 is fastened to the upper side, the shaft pin 22 is configured as an operation nut 23 to allow simultaneous rotation of the shaft pin 22 during a bidirectional rotation operation using a separate tool.

On the other hand, in the shaft pin 22, the stepped jaw 211 that can be caught in the end of the vertical through hole 13 of the wrench shaft 1 is extended to the bottom end, the upper side of the stepped jaw 211 proximal A cutting end 222 having an inward step is formed to be flat in the site so that an internal acceptance of a part of the locking ball 22 is formed, and a pin screw thread 223 for assembling and assembling the operation nut 23 is formed at an upper end thereof. Is formed.

The handle bar 3 is a means for allowing the operator to directly rotate the wrench shaft 1 so that the cutter shaft 830 can move upward and downward through simultaneous rotation of the cutter 830. It is preferable that the hand socket 31 having a shape and capable of fitting the wrench shaft 1 at the center lower side thereof may be further integrally formed.

In addition, a circumferential groove 832-1 through which the outer protrusion of the locking ball 22 may be inserted into the inner diameter surfaces of the first wrench grooves (FIGS. 1A and 832) formed at the upper center portion of the cutter 830. It is formed inwardly.

Unexplained reference numeral (b) is a clamp band for maintaining and reinforcing the fusion state in which the branch tee is firmly connected to the main pipe in connection with the flange portion formed below the perforated pipe.

Referring to the operation of the branching drill handle (A) according to the present invention having the above configuration in detail as follows.

As described above in detail, in the state in which the flange portion 811 of the above-described perforated pipe 810 is in close contact with one side upper end of the main pipe P-1 to which gas is supplied, the welding member 811-1 By using the bottom surface of the flange portion 811 is to be fused to the outer surface of the main pipe (P-1).

Subsequently, the branch pipe (p-2) is connected to the discharge pipe 820 of the perforated pipe 810, and they are also firmly connected to prevent gas leakage from the connection site by using a separate fusion socket prepared in advance. This process completes the connection work of the branch pipe (p-2) from the main pipe (p-1) in the pipe branching operation.

In this state, a drilling operation is performed to cut a portion of the main pipe p-1 using the cutter 830, which is a gas supplied through the main pipe p-1. This is to make the final supply to the demand price (household household) through one branch tee 800 and the branch pipe (p-2).

In order to achieve this purpose, first, as shown in Figure 4a, by inserting the tip of the wrench shaft (1) of the drilling handle 900 into the first, second through holes (810a, 840a) the lower hexagonal tip (11) is fitted into the first wrench groove 832 of the cutter (830).

At this time, as shown in Figure 3a, by positioning the shaft pin 22 to face the horizontal through hole 4 of the wrench shaft (1), a part of the locking ball 21 is the lower hexagon The lower hexagon tip 11 can be simply fitted into the first wrench groove 832 by allowing the tip 11 not to protrude to the outside and to be in an inclusive accommodation state.

Subsequently, as shown in FIG. 3B, the locking member 2 fastened to the upper hexagon tip 12 of the wrench shaft 1 by using a separate tool such as a wrench (not shown). The operating nut 23 is rotated half a turn to the left (or right) side.

Accordingly, the wrench shaft 1 is rotated at the same time, and the cutting end 222 makes a rotational movement in the opposite direction opposite to the horizontal through hole 14, whereby the outer peripheral surface of the shaft pin 22 The locking ball 21 accommodated in the cutting end 222 having an inward step from the site is pressed by the outer circumferential surface of the shaft pin 22 in which the cutting end 222 is not formed. Pushed toward the side, and eventually a portion of the locking ball 21 protrudes to the outside of the lower hexagonal tip 11 and the protruding portion is inserted into the circumferential groove 832-1 of the first wrench groove 832. It is acceptable.

At this time, the locking ball 21 is completely protruded to the outside by the hinge 141 formed at the outer end portion of the horizontal through hole 14, so that the protruding state can be maintained without being separated.

As such, when the external protrusion of the locking ball 21 is completed, the upper hexagonal tip 12 of the wrench shaft 1 is fitted into the second wrench groove 311 of the hand socket 31 so that the wrench The shaft 1 and the handlebar 3 are assembled in one piece.

In that state, the handlebar 3 is grabbed by both hands and rotated clockwise so that the wrench shaft 1 rotates, thereby through simultaneous rotation and downward movement of the cutter 830, as shown in FIG. 4B. As shown, the cutter 830 is a punching operation is made to cut a portion of the upper end of the main pipe (p-1) in a circular shape.

Here, during the above drilling operation, the gas supplied through the main pipe p-1 is leaked to the cutout portion of the main pipe p-1 with strong pressure. This gas leakage pressure also affects the drilling handle A of the present invention.

However, as the locking ball 21 of the locking member 2 maintains a firm insertion state in the first wrench groove 832 of the cutter 830, the branching ball 800 according to the present invention is used. Separation and separation of the drilling handle (A) can be prevented, so that the operator can continue the above-described drilling operation without any problem.

Finally, when the drilling operation of the main pipe p-1 is finished through the above process, as shown in FIG. 4C, the cutter bar 830 is rotated counterclockwise in a counterclockwise direction. The gas discharged from the cutout of the main pipe p-1 is discharge pipe 820 and the branch pipe of the branch tee 800 by allowing the upward movement and close contact with the bottom surface of the upper portion of the perforated pipe 810. Following (p-2), the final supply is at the demand price.

For reference, when the working process is completed so far, the closing cap 840 is removed, and then the other end cap (not shown) of the hermetic pipe (not shown) in which the second through hole 840a is not formed. 810) By fastening and assembly on top, the possibility of gas leakage is essentially blocked.

As described above, the present invention has been described in detail by using a preferred embodiment, but the scope of the present invention is not limited to the specific embodiment, it should be interpreted by the appended claims. In addition, those of ordinary skill in the art that various modifications can be made without departing from the scope and spirit of the present invention.

A: punch handle, 1: wrench shaft, 2: locking member
3: handle bar, 11: lower hexagon tip, 12: upper hexagon tip
13: vertical through hole, 14: horizontal through hole, 21: rocking ball
22: shaft pin, 23: operating nut, 31: hand socket
141: jaw, 221: step, 222: cutting end
223: pin thread, 800: branch tee, 830: cutter
832: Wrench groove, 832-1: Peripheral groove

Claims (7)

In the branching operation of the pipe using a branching tee, a wrench that is manipulated to move the cutter by fitting into a wrench groove formed at the center of the upper end of the cutter which is movable up and down inside the branching tee for cutting a portion of the main pipe. shaft; A locking member for protruding a portion of the locking ball from one side of the lower end of the wrench shaft to maintain an assembled state between the cutter and the wrench shaft; And a handle bar detachably mounted on the upper end of the wrench shaft and rotating the wrench shaft in both directions to allow the cutter to move up and down.
The wrench shaft has a lower hexagonal tip to be fitted to the wrench groove at the lower end, the upper hexagonal tip to be fitted into the handle bar is formed at the upper end, the vertical through hole for receiving assembly of the locking member The through-hole in the center along the longitudinal direction, so that the internal acceptance and some external protrusion of the locking ball, the horizontal through hole communicating with the vertical through hole from one outer surface of the lower hexagonal tip is further formed through Separation prevention structure of punch handle.
The method of claim 1,
The inner diameter of the wrench groove, the separation groove prevention structure for the separation piercing handle, characterized in that the peripheral groove which can be inserted into the outer protrusion of the locking ball is further formed inward.
delete The method of claim 1,
The locking member includes the locking ball,
Shaft pin to achieve a bi-directional rotation in the assembled state inserted into the vertical through hole, so that a portion of the locking ball embedded in the horizontal through hole can be projected to the outside of the wrench shaft or accommodated inside;
When the shaft pin is fastened to the upper side, the separation and separation prevention structure of the puncture handle for branch tea, characterized in that the shaft pin is composed of a control nut to achieve a simultaneous rotation during the bidirectional rotation operation using a separate tool.
The method of claim 1,
The handle bar is a bar shape that can be gripped with both hands,
Separation separation prevention structure of the punching handle for the branch tee, characterized in that the hand socket which can fit the wrench shaft therein is further protruded integrally from the lower center.
The method of claim 1,
Separation prevention structure for the separation of the drill handle for the branch tee, characterized in that at the outer end of the inner surface of the horizontal through, the threshold for preventing the departure of the locking ball is further formed.
The method of claim 4, wherein
In the shaft pin, a stepped jaw that can be caught at the end of the vertical through hole formed along the longitudinal direction of the center of the wrench shaft is extended to the bottom end,
In a portion near the upper step of the step, a cutting end having an inward step is formed to be flat so as to allow the internal acceptance of a part of the locking ball,
The upper end, the separation-preventing structure of the puncture handle for the branch tee, characterized in that the pin thread for forming the fastening assembly of the operation nut is formed.

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