JP2001310270A - Pipe inserting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pipe inserting device easily operated allowing efficient inserting work and checking of connecting state. SOLUTION: This pipe inserting device comprises an engaging mechanism 3 engagingly holding the pipe to be inserted through a link mechanism 4 by nipping operation of a movable handle 2 pivotally mounted to a fixed handle 1, and also comprises an inserting mechanism 5 for moving a joint through the link mechanism 4 by nipping operation of the movable handle 2 successively performed after the engagingly holding operation to insert the pipe to be inserted into the joint.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe insertion device mainly used for connecting a synthetic resin pipe to a pipe joint.

[0002]

2. Description of the Related Art Conventionally, insertion work for connecting a synthetic resin pipe to a pipe joint has usually been performed manually. However, since the pipes and the joints are manually inserted, it is difficult to accurately match the axial direction of the pipes with the axial direction of the joints. . However, if the axial direction is deviated, a large force is required for insertion, so that an increase in the insertion force may cause the worker to assume that the insertion is completed. If the insertion is incomplete due to such an assumption, there is a problem that an accurate sealing action is not performed due to an insufficient insertion amount of the pipe into the joint, and liquid leakage occurs. In addition, when the insertion force increases, the joint may be forcibly fitted into the joint by hitting the joint with a hammer, but when the joint is hit with a hammer, the joint screw may be damaged or the joint may be damaged. There was a problem. Furthermore, when inserting manually, it is difficult to check whether the pipe has been completely inserted into the joint, and it is necessary to provide a confirmation mark indicating the insertion position on the pipe before insertion, which makes the work complicated. There was a problem of becoming. For this reason, there has been a demand for the development of a device that can easily and surely insert and connect a joint to a pipe.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tube inserting apparatus which can perform an inserting operation easily and efficiently and can confirm a connection state.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a holding mechanism for holding an inserted tube through a link mechanism by a squeezing operation of a movable handle pivotally attached to a fixed handle. A pipe provided with an insertion mechanism for moving a joint through the link mechanism by a squeezing operation of a movable handle performed following the biting operation, and inserting the bite-inserted pipe into the joint. An insertion device, wherein the holding mechanism is provided with a fixing mechanism that can be adjusted in accordance with the diameter of the inserted tube, and a marking member that puts an insertion completion mark on the inserted tube by the insertion completion operation of the insertion mechanism. What you have provided,
The insertion operation of the insertion device and the marking operation of the marking member for attaching the insertion completion mark to the inserted tube are performed in conjunction with each other.

[0005]

Next, a preferred embodiment of the present invention will be described in detail with reference to FIGS. Reference numeral 1 denotes a fixed handle, and a movable handle 2 is pivotally attached to the fixed handle 1 so as to be slidable. Reference numeral 3 denotes a holding mechanism for holding the synthetic resin insertion tube via a link mechanism 4 connected to the link arm 2a of the movable handle 2. Reference numeral 5 denotes the above-described link connected to the link arm 2a of the movable handle 2. This is an insertion mechanism for inserting the joint into the insertion pipe via the link mechanism 4.

The holding mechanism 3 comprises a holding member 8 composed of a fixed vice 6 and a movable vise 7, and a swing link 9 for operating the movable vise 7, and the swing link 9 is provided by the link mechanism described above. 4. The fixed vice 6 of the biting member 8 is attached to the upper end of the fixed handle 1, and the movable vise 7 of the biting member 8 is attached to the upper end of the fixed handle 1 so as to face the fixed vise 6 so as to be pivotable. . The fixed vise 6 has slide arms 6 b formed on both sides of vice teeth 6 a slidably fixed to a bearing portion 1 a of the fixed handle 1. Also,
The movable vise 7 supports the vice teeth 7a urged in the gripping direction by the spring 3a on the frame 7b so as to be horizontally pivotable, and also connects the frame 7b to the bearing 1a of the fixed handle 1.
It is pivoted to. The movable vise 7 is always urged in the opening direction by a spring 10 for urging the frame 7b. Further, the lower surface of the frame 7b is a contact surface 7c with which the protrusion 9b of the swing link 9 is brought into contact.

Reference numeral 11 denotes a fixing mechanism for positioning and fixing the fixed vise 6 to the fixed handle 1. The fixed mechanism 11 includes a bolt 11a and a tightening nut 11b, and is attached to the outer surface of the bearing 1a of the fixed handle 1. The bolt 11a is inserted into the shaft hole of the bearing portion 1a through the elongated hole 12 of the slide arm 6b of the fixed vice 6 to be fixed. Then, the fixing vise 6 is fixed by tightening the tightening nut 11b on the screw portion of the bolt 11a protruding from the long hole 12 on the opposite side. Further, the bolt 11 a of the fixing mechanism 11 also serves as a pivot of the movable vise 7. Further, if the tightening nut 11b of the fixing mechanism 11 is loosened and the slide arm 6a is slid within the range of the elongated hole 12, the gap between the movable vise 7 and the fixed vise 6 is adjusted according to the diameter of the inserted pipe. can do. Reference numeral 13 denotes a pin that is inserted into the bearing portion 1a and inserted into the elongated hole 14 of the slide arm 6b. The pin 13 prevents the fixed vise 6 from rotating around the bolt 11a. .

Further, the swing link 9 is fixed handle 1
Is arranged in a guide groove 15 formed below the bearing portion 1a, and the tip is pivotally mounted in the guide groove 15. The tip of the swinging link 9 whose tip is pivotally supported is extended downward to serve as a stopper 9a for regulating the swinging amount that comes into contact with the bottom of the guide groove. The upper surface of the intermediate portion of the swing link 9 is formed on a protrusion 9b for pressing the frame 7b of the movable vise 7,
A long hole 9c is formed in a base portion of the swing link 9 to allow the movement of the slide link 18 operated by the link mechanism 4 to escape. The link 4 of the link mechanism 4 is inserted into the elongated hole 9c.
The pin a is engaged. The other end of the link 4a is pivotally attached to the link arm 2a of the movable handle 2.
16 is a spring for urging the movable handle 2 in the opening direction, 17
Is a spring for urging the link 4a of the link mechanism 4 counterclockwise.

Further, the insertion mechanism 5 comprises a slide link 18 slidably engaged with the guide groove 15 and a locking plate 20 attached to a marking member 19 pivotally attached to the slide link 18. . A vertical hole 18 a is formed in the enlarged base of the slide link 18. While the pin of the link 4a is engaged with the vertical hole 18a, the movable handle 2 is squeezed to hold the inserted tube by the holding mechanism 3, and the link 4a of the link mechanism 4 is operated by the squeezing operation of the movable handle 2. This prevents the insertion mechanism 5 from operating. Reference numeral 21 denotes a long hole formed in the slide link 18, and the long hole 21 prevents the slide link 18 from being unable to slide due to a pin pivotally connecting the swing link 9. The locking plate 20 is formed with an engaging notch 20a for locking on the back surface of the joint connected to the inserted pipe, and the width of the engaging notch 20a is equal to the width of the hexagonal portion for locking the wrench of the joint. It is assumed to be equal to the surface width. Further, the locking plate 20 is detachably attached to the marking member 19 by a wing bolt 20b.

Further, a groove 19a for interposing the slide link 18 is formed in the marking member 19 whose intermediate portion is pivotally attached to the tip of the slide link 18.
A spring 22 is attached to the marking member 19, and the spring 22 abuts on the lower surface of the slide link 18 interposed in the groove 19a and constantly urges the marking member 19 clockwise. Marking member 19
Is normally urged clockwise to prevent the tip of the marking pen 23 from contacting the inserted tube. The marking pen 23 is attached to the marking member 19 such that the pen tip is located at a position slightly shifted from the center line of the inserted tube. Marking pen 23
By removing the pen tip from the center line, the pen tip can be easily escaped to prevent wear and damage of the pen tip. Reference numeral 24 denotes a stepped hole for attaching a marking pen 23 drilled from the bottom surface of the marking member 19, and an intermediate flange portion 23 a of the marking pen 23 inserted into the stepped hole 24 is a stepped portion of the stepped hole 24. And the marking pen 23 is
4 is prevented from falling out. 25 is a stepped hole 24
The cover 25 is formed with a hole 27 for mounting a spring 26 for pressing the bottom of the marking pen 23. The bottom of the hole 27 is an enlarged hole having an enlarged diameter. The spring 26 at the lower end is fitted with the enlarged spring 26 to integrate the spring 26 with the lid 25. The spring 26 is for keeping the writing pressure of the marking pen 23 constant.

[0011] With the above-mentioned structure, the tip of the inserted pipe is lightly inserted into the joint by hand, and the bite mechanism 3 is inserted.
The inserted tube is interposed between the movable vice 7 and the fixed vise 6, and the locking plate 20 of the insertion mechanism 5 is placed on the back surface of the joint. In this state, as shown in FIG. 1, only the upper end of the locking plate 20 is in contact with the back surface of the joint. Before this operation, in order to match the outer diameter of the inserted tube to be inserted, the tightening nut 11b of the fixing mechanism 11 is loosened, and the fixing vise 6 slides through the elongated holes 12 and 14 for guiding the bolt 11a and the pin 13. The arms 6b, 6b are slid to position the fixed vise 6, and the fastening nut 11b of the fixing mechanism 11 is tightened to fix the fixed vise 6 to the bearing 1a of the fixed handle 1.

Then, with the joint and the insertion tube temporarily held by the holding mechanism 3 and the insertion mechanism 5, the movable handle 2 is
8, the link arm 2a of the movable handle 2 pivots, and the link 4 of the link mechanism 4 pivotally attached to the link arm 2a, as shown in FIG.
a moves upward under the bias of the spring 17. As a result, the swing link 9 having the other end pivotally connected to the link 4a and the distal end pivotally connected to the guide groove 15 pivots upward. When the link 4a moves upward, the pin of the link 4a, which is also engaged with the slide link 18, is guided by the vertical hole 18a of the slide link 18 and does not operate the slide link 18 of the insertion mechanism 5. Then, the pivot 9 of the swing link 9 causes the protrusion 9 b to press the lower end of the frame 7 b of the movable vise 7 to cause the movable vise 7 to rise and pivot clockwise against the urging force of the spring 10. This upright pivoting causes the inserted tube to be held between the vice teeth 6a of the fixed vice 6 and the vice teeth 7a of the movable vise 7.

When the inserted tube is bitten by the biting mechanism 3 as described above, the stopper portion 9a of the rocking link 9 comes into contact with the bottom of the guide groove 5 to stop the pivoting of the rocking link 9. At this time, the pin of the link 4a is located at the upper end of the vertical hole 18a of the slide link 18. Then, the pin 4 of the link 4a is in contact with the upper end of the vertical hole 18a by the subsequent pinching operation of the movable handle 2, so that the link 4a pivots clockwise against the force of the spring 17. Will be done. As a result, the slide link 18 of the insertion mechanism 5 slides rightward in FIG. When the slide link 18 slides, the pin of the link 4a engaged with the swing link 9 is guided by the elongated hole 9c, so that the holding mechanism 3 is not operated.

When the slide link 18 slides rightward, the joint locked by the locking plate 20 of the insertion mechanism 5 is inserted into the inserted tube held by the holding mechanism 3. Becomes At this time, the locking plate 20 of the insertion mechanism 5 whose upper end is in contact with the end face of the joint is moved counterclockwise together with the marking member 19 with the upper end as a fulcrum by the slide link 18 being slid rightward. You will be pivoted. By this pivoting, the tip of the marking pen 23 of the marking member 19 approaches the inserted tube. Then, as shown in FIG. 9, when the inserted pipe is completely fitted in the joint, the locking plate 20 comes into close contact with the back surface of the joint, and the marking pen 23 of the marking member 19 The tip comes into contact with the inserted tube to perform marking of insertion completion.

After the inserted pipe is fitted into the joint by the single squeezing operation of the movable handle 2 as described above, the movable handle 2 is pivoted in the opening direction by the spring 16 when the squeezing operation of the movable handle 2 is released. Will move. With this opening operation, the link mechanism 4 operates in the opposite direction, and the link 4a returns to the old state. By this return operation, the pin of the link 4a engaged with the elongated hole 9c of the swing link 9 slides and returns the slide link 18 to the left while being guided by the elongated hole 9c. When the pin of the link 4a comes into contact with the end of the elongated hole 9c of the swing link 9, the movable handle 2 urged by the spring 16 lowers the link 4a. As a result, the swing link 9 is pivoted downward to return to the old state. When the movable handle 2 is opened, the pressing of the joint and the inserted tube by the insertion mechanism 5 and the biting of the inserted tube by the biting mechanism 3 are released. You only have to remove it. Further, if the operation of the movable handle 2 is not completely performed, since the marking of the completion of the insertion by the marking member 19 is not performed, it is determined again that the fitting is defective, and
What is necessary is just to perform the same insertion operation as the above.

[0016]

As is apparent from the above description, the present invention relates to a gripping mechanism for gripping an inserted tube via a link mechanism by a squeezing operation of a movable handle and a joint by a squeezing operation of a movable handle. The movable handle is provided with an insertion mechanism for moving the stopped locking plate to insert the inserted pipe into the joint, and a marking member for marking the inserted pipe by the insertion completion operation of the insertion mechanism. Is operated once, the inserted pipe can be inserted into the joint, the work is simple, the fitting can be done securely even by non-experts, and the work efficiency is good and work can be done in a short time Can be completed. Moreover, when the inserted pipe is completely inserted into the joint, the insertion pipe is marked with the completion of insertion, and if the marking is not made, it is understood that the fitting is incomplete and the fitting is not completed. No liquid leakage or the like due to defects will occur. If the fitting is incomplete, the insertion operation may be performed again to perform the fitting, so that a liquid leakage accident does not occur. In addition, since there is no need to insert the joint by hitting it with a hammer or the like as in the case of manual work, there are various advantages such as not damaging the screw of the joint. Therefore, the present invention is extremely significant in that it contributes to the development of the industry as a tube insertion device that has solved the conventional problems.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing a preferred embodiment of the present invention.

FIG. 2 is a right side view showing a preferred embodiment of the present invention.

FIG. 3 is a partially cutaway plan view showing a preferred embodiment of the present invention.

FIG. 4 is a partially cutaway left side view showing a preferred embodiment of the present invention.

FIG. 5 is a sectional view showing a marking member according to a preferred embodiment of the present invention.

FIG. 6 is a sectional view showing a biting mechanism according to a preferred embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a state in which the tube is held by the holding mechanism according to the preferred embodiment of the present invention.

FIG. 8 is a partially cutaway front view showing a state in which a tube has been completely bitten in the preferred embodiment of the present invention.

FIG. 9 is a partially cutaway front view showing an insertion completed state in a preferred embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed handle 2 Movable handle 3 Biting mechanism 4 Link mechanism 5 Insertion mechanism 11 Fixing mechanism 19 Marking member 20 Locking plate

 ──────────────────────────────────────────────────の Continuing from the front page (72) Inventor Hiroshi Oya 2nd Daifuku, Kuwana-shi, Mie Hitachi Metals Co., Ltd. Kuwana Plant (72) Inventor Yoshiki Hamasaki 2nd Daifuku, Kuwana-shi, Mie Hitachi Metals Co., Ltd. Kuwana Plant F-term (reference) 3C030 BC06 BC19 BC32 3C031 DD36

Claims (4)

[Claims] 1. A gripping mechanism for gripping an inserted tube via a link mechanism by a gripping operation of a movable handle pivotally attached to a fixed handle, and gripping of the movable handle performed following the gripping operation A pipe insertion device, comprising: a joint mechanism configured to move a joint via the link mechanism by an operation, and to insert the pinched inserted tube into the joint. 2. The tube insertion device according to claim 1, wherein the holding mechanism is provided with a fixing mechanism that can be adjusted according to the diameter of the inserted tube. 3. The tube insertion device according to claim 1, further comprising a marking member for marking an insertion completion mark on the inserted tube by an insertion completion operation of the insertion mechanism. 4. The tube insertion device according to claim 3, wherein the insertion operation by the insertion device and the marking operation of the marking member for marking the insertion completion mark on the inserted tube are linked.