JP3093590U - Segment coupling equipment - Google Patents

Abstract

(57) [abstract] (with correction) [PROBLEMS] A conventional segment coupling device requires a coupling device including a rotary drive mechanism, a press-fitting device moving mechanism, and the like.
On the ceiling side in a small-diameter tunnel, there is a problem that work is performed at a high place, and work using the apparatus is dangerous. A female joint body (1) has a cylindrical body (3), a threaded rod (5), and a joint rod introducing cylindrical body (8) that forms a screw (11) and exposes a lock ball (15) on a small-diameter portion (13) side. A first slide collar 16 and a second spring receiving hole 1 at one end.
The second slide collar 18, the first spring 20, and the second slylock ball 15, on which the inner peripheral surface of the second slide collar 18 is formed and the second slide collar 15, are connected to the second slide collar 18 with the second slide collar 18. The male joint body 2 is formed by a second spring 21 that repels to a position that can be held between the outer peripheral surface of the collar 18 and the male joint body 2.
7 formed with a threaded portion 28 at the other end side
And a holding nut 29 screwed onto the screw portion 28.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  This invention constitutes the primary lining of a shield tunnel or the outer shell structure of a building. More specifically, the present invention relates to a joint device for a segment that is buried or buried underground. The coupling device can be easily coupled without requiring a large-scale coupling support device for coupling. The present invention relates to a joint device for an upcoming segment.

[0002]

[Prior art]

  For example, a well-known technique is described in Japanese Patent Laid-Open No. 8-303189. A pair of female and male fitting pieces In the connector, the front side of the pair of female joint pieces is The force claw engages from the side by rotation, and the engaging reaction force claw of the male joint piece insertion direction An engagement protrusion or groove having a shape capable of preventing disengagement is provided. Fastening device, engagement reaction force A claw is formed on the tip, and a male connector piece can be stored inside, A press-fitting cylinder that can press-fit the male joint piece in the rolling connection member into the fitting hole, and A rotary drive mechanism that rotates the rotary connection member forward and backward by a predetermined angle, and a pair of female type A segment joint composed of a moving mechanism that moves back and forth with respect to the joint piece is known Is.

[0003]   However, the insertion part of the male fitting piece has a female fitting pin with an H-shaped fitting hole. The rotary drive mechanism, press-fitting cylinder, press-fitting It requires a coupling device consisting of a device moving mechanism, etc. Even if the location is narrow or large, the equipment will be used at high places on the ceiling side of the tunnel. There is a problem that the work involved is dangerous.     To solve these problems, the male member has a hole in the front half including the tip. The formed rod and the rear side is held in the hole of this rod and the first half side is the spindle line. It is equipped with a key pin having a bulging body, and the rod of the male member is inserted into the female member. It is a tubular body having a hole that can be inserted, and the tubular body has a cross-sectional shape in the tubular hole in the depth direction of the hole. In the area from the entrance to the middle part, the entrance has the maximum inner diameter, and from there, the diameter is tapered. Is the middle part with the smallest diameter, and the middle part allows the rod to be loosely inserted. The inner diameter of the rod is from the middle part of this minimum diameter to the bottom of the hole. Inner surface shape where the rod whose outer surface bulges when the key pin is pressed in is inserted tightly A hole in which the inner diameter of the middle part is large and the front and rear parts gradually become smaller. There are segment coupling devices that are of the shape that they have.

[0004]   The segment joint device with this structure has a simple structure and has sufficient bonding force. There is an advantage that it can be manufactured at low cost with a large binding force in the direction of At the work site, mud, cement, etc. easily enter the holes of the female member, and such foreign matter enters. If it gets complicated, there is a problem that you can not combine.

[0005]

[Problems to be solved by the device]

  In this invention, the insertion portion of the male joint piece which is the first conventional example described above is formed into an H-shape. When inserting into the fitting hole of the female joint piece with the Requires a coupling device consisting of a rolling drive mechanism, a press-fitting cylinder, a press-fitting device moving mechanism, etc. , Even if the work area is small or large in a small diameter tunnel, On the ceiling side, work is done at a high place, and work using the device is dangerous. The second conventional example has a simple structure that provides sufficient bonding force and shearing force. Although there is an advantage that it can be manufactured at a large cost at a low cost, in actual work Mud and cement, etc., easily enter the holes of the member, and if such foreign matter enters, It solves the problem of being unable to match.

[0006]

[Means for Solving the Problems]

  In order to solve the above-mentioned problems, this invention is applied to the erector of a shield machine. The pressing force is used to fasten the segments.   That is, the segment coupling device of the present invention is the same as the preceding segment S1. The trailing end and the leading end of the succeeding segment S2 following this preceding segment are respectively taken. It consists of a female type joint body 1 and a male type joint body 2 that firmly connect both attachment segments. The female type joint body 1 includes a cylindrical body 3 having screws 4a and 4b formed on the inner circumferences of both ends, and A screw hole 6 screwed to one end of the tubular body 3 and coupled to the end of the segment is provided at one end. And a screw rod 5 in which a spring receiving hole 7 of the On the side of the large diameter portion 10 and the through hole 9 through which the joint rod 25 of the mold joint body 2 can be inserted, A screw 11 is formed on the outer circumference so that the end can be screwed to the end, and the end of the large diameter portion 10 on the small diameter portion 13 side. The lock ball 15 is exposed at a position where the circumference of the small diameter portion 13 is divided into plural portions on the surface 12 side. The joint rod introducing cylinder 8 having a plurality of holes 14a to 14d formed therein and the cylinder 3 inside. A large-diameter hole portion 17 that can move and restricts the position of the lock ball 15 is provided on one end side. The first slide collar 16 and the joint rod introducing cylinder 8 can slide on one end side. A second slide collar 18 having a second spring receiving hole 19, and the cylindrical body. Within 3 the end surface of the threaded rod 5 and the end surface of the first slide collar 16 are abutted and The end of one slide collar 16 is attached to the end of the large diameter portion 10 of the joint rod introducing cylinder 8. The first spring 20 to be contacted, the first spring receiving hole 7 and the second spout The second slide collar 18 is disposed between the ring receiving hole 19 and the ring receiving hole 19 and the second slide collar 18 is formed in the hole 14a. 14d is a lock ball 15 in the large diameter hole portion 1 of the first slide collar 16. Releasing to a position where it can be held between the inner peripheral surface of 7 and the outer peripheral surface of the second slide collar 18. And the second spring 21 to be formed, and the male joint body 2 is the joint rod introducing cylinder. The engaging peripheral groove 27 having an arc surface is formed on the peripheral surface on one end side of the rod-shaped body 26 that can be inserted into Joint rod 25 having a threaded portion 28 on the end side, and a holding nut screwed to the threaded portion 28 It is formed with 29 and

[0007]     A second slide collar 18 having a second spring receiving hole 19 formed on one end side A flange 22 is formed on the outer periphery of the one end side of the The sliding position in the joint rod introducing cylinder 8 is regulated by the second spring 21 formed. To be able to

[0008] The joint rod 25 is provided at the hole edge of the joint rod introducing cylinder 8 on the side where the joint rod 25 is inserted. A taper-shaped dovetail portion 23 inclined inward for facilitating introduction into the cylindrical body 8 is provided. The tubular body of the threaded rod 28 and the joint rod introducing tubular body 8 which are formed and screwed to both ends of the tubular body 8. After adjusting the amount of screwing into the tube 8, these and the cylindrical body 8 are welded to each other by welding 24a, 24b. Can be achieved.

[0009]   A connecting rod is introduced into one end of the through hole 9 of the joint rod introducing cylinder 8 to introduce the joint rod into the cylinder. Forming a par 23

[0010]   The threaded rod 5 and the joint rod introduction cylinder 8 screwed into both ends of the cylinder are screwed into the cylinder. After adjusting the amounts, these are welded and fixed to the cylindrical body by welding 24a and 24b.

[0011]   The one end of the threaded rod 25 facilitates insertion of the jointed rod introduction cylinder 8 into the through hole 9. A chamfer 30 is provided to protect the wrench hooks 31a and 31b from the other end. This can be achieved by forming the table.

[Embodiment of device]

[0012]   A segment joint device according to an embodiment of the present invention will be described in detail with reference to FIGS. explain. First, as shown in FIGS. 5 and 6, the trailing end of the preceding segment S1 And the front end of the subsequent segment S2 following this preceding segment, respectively. It is composed of a female joint body 1 and a male joint body 2 that firmly connect both segments.   As shown in FIG. 1, the component structure of the female joint body 1 is made of steel and has inner circumferences at both ends. The cylinder 3 having the screws 4a and 4b formed on it and the one end of the cylinder 3 are screwed to each other, and And the first spring receiving hole 7 at the other end. The threaded rod 5 bored in the center and the joint rod 25 of the male joint body 2 described later are inserted inside. The through hole 9 having a diameter through which the through hole 9 and the large diameter portion 10 are attached so that the other end of the cylindrical body 3 can be screwed to the other end. A screw 11 is formed on the circumference, and the small diameter portion 13 side is provided with the small diameter portion on the end face 12 side of the large diameter portion 10. The steel lock ball 15 is exposed at a position where the circumference of the part 13 is divided into a plurality of parts. A plurality of holes 14a to 14d having a diameter slightly larger than the diameter of the lock ball 15 are formed. The joint rod introducing cylinder 8 and the lock which can slide in the cylinder 3 as shown in FIG. A first slider having a large-diameter hole portion 17 for regulating the position of the ball 15 on one end side. As shown in FIG. 3, the collar 16 can slide in the joint rod introducing cylinder 8 and can be slid on one end side. A second slide collar 18 in which a second spring receiving hole 19 is formed, In the body 3, the end surface of the screw rod 5 and the end surface of the first slide collar 16 are contacted with each other, and The end of the first slide collar 16 is connected to the end of the large diameter portion 10 of the joint rod introducing cylinder 8. The first spring 20 to be elastically contacted, the first spring receiving hole 7 and the second spring The second slide collar 18 disposed between the pulling receiving hole 19 and the hole 14a A large diameter hole portion of the first slide collar 16 17 is a position that can be held between the inner peripheral surface and the outer peripheral surface of the second slide collar 18. And a second spring 21 of a smaller diameter than the first spring 20 To form.   Further, as shown in FIG. 3, a second spring receiving hole 19 is formed on one end side. A second slide collar 18 is provided on the outer circumference on the one end side to contact the end surface of the joint rod introducing cylinder 8. The joint rod introducing cylinder 8 formed by the second spring 21 to form the flange 22 which contacts To be able to regulate the sliding position inside.

[0013]   The female joint body 1 is assembled as shown in FIG. 1, that is, one end of the cylindrical body 3 is assembled. After screwing the threaded rod 5 onto the first spring 20 and the second spring 21, From the other end side of the body 3, one end of the first spring 20 is on the end face of the screw rod 5, The second spring 21 is arranged so that one end of the second spring 21 fits inside the first spring receiving hole 7. Set up.     Next, the second slide collar 18 is attached to the second spring in the joint rod introducing cylinder 8. Insert it so that the receiving hole 19 faces the second spring 21 side, and Insert one end side into the joint rod introducing cylinder body 8 at -16. After this, the first slide collar 1 6 from the joint rod introducing cylinder 8 until the holes 14a to 14d are visible, and then the hole 14 Each of the four lock balls 15 is placed in each of a to 14d. It is rejoined in the first slide collar 16 so as not to spill out from the holes 14a to 14d. The handhold introduction cylinder 8 is inserted and held.   This assembly is installed from the other end of the cylinder 3 to the first and second springs 20 and 21. Elastically inserted like this and screwed.   Screwing the rods 5 and the joint rod introducing cylinders 8 screwed into both ends of the cylinder 3 into the cylinders. After adjusting the filling amounts, these and the cylindrical body 3 are welded and fixed by welding 24a, 24b. To achieve.

[0014]   Further, as shown in FIG. 1, the male joint body 2 is made of steel and has the joint rod introducing cylinder body. 8 has a circular cross-section that can be inserted into the rod-shaped body 26. And a coupling rod 25 having a threaded portion 28 formed on the other end side, and screwed to the threaded portion 28. It is formed with a holding nut 29, and one end of the joint rod 25 is provided with the joint rod introduction cylinder 8. A chamfer 30 for facilitating insertion into the through hole 9 is provided, and a rod-shaped body 26 is provided on the other end side. Grind the arc-shaped peripheral surface of the wrench flat to form the wrench hooks 31a and 31b at the opposite positions. It is made so that a wrench can be used when screwing.

【Example】

[0015]     As shown in FIG. 5, the segment coupling device A according to the present invention has a structure as shown in FIG. The trailing edge of the segment S1 and the leading edge of the following segment S2 following this preceding segment. Each can be installed.   As shown in FIG. 6, the attachment is made at the rear end of the preceding segment S1. Bolts are fixed by screwing them into the screw holes 6 provided at one end of the threaded rod 5 of the female joint body 1. To do. Also, the male joint body 2 is a bolt attached to the front end of the segment S2. The holding nut 29 screwed to the threaded rod 25 is screwed into and fixed.

[0016]     The trailing end of the preceding segment S1 and the following segment that follows this preceding segment In order to connect the front end of the component S2, as shown in FIG. The rod 25 is inserted into the joint rod introducing cylinder 8 of the female joint body 1 and the erector of the shield machine. Insert using the pressing force of   The tip of the joint rod 25 of the male joint body 2 inserted in the joint rod introducing cylinder 8 is It comes into contact with the end surface of the second slide collar 18 and makes this elastic force of the second spring 21. When the second slide collar 18 is pressed down against When it becomes possible to move in the groove 27, that is, in the axial direction of the joint rod 25, the first slurry is generated. The id collar 16 is attached to the end surface of the large diameter portion of the hand-barrel introducing cylinder 8 by the elasticity of the first spring 20. When it is pushed up until it abuts, the large-diameter hole portion 17 of the first slide collar 16 is manually pushed. The small diameter portion 13 side of the rod introduction cylindrical body 8 slid into the engagement peripheral groove 27 at the inner peripheral surface. The lock ball 15 is crimped to firmly connect the male joint body 2 and the female joint body 1 to each other. And the preceding segment S1 and the following segment S2 following the preceding segment To heal.   In the same way, connect the unit segments in the same way, and Form the outer shell structure of a building.

【effect】

[0017]   The invention according to claim 1 is directed to the trailing end of the preceding segment S1 and the preceding segment. Attached to the front end of the subsequent segment S2 following each, and firmly attach both segments. It consists of a female type joint body 1 and a male type joint body 2 to be connected, and the female type joint body 1 is in both ends. A cylindrical body 3 having screws 4a and 4b formed on its circumference and one end of the cylindrical body 3, The screw hole 6 that connects with the end of the segment is at one end, and the first spring receiving hole 7 is at the other end. A threaded rod 5 bored in the center of the end and a joint rod 25 of the male joint body 2 described later are provided inside. The through hole 9 that can be inserted and the large-diameter portion 10 are attached to the outer circumference so that the other end of the cylindrical body 3 can be screwed. The small-diameter portion 1 is formed on the end face 12 side of the large-diameter portion 10 on the small-diameter portion 13 side where the screw 11 is formed. A plurality of holes 14a to 1 that expose the lock ball 15 at positions corresponding to a plurality of three circumferences. The joint rod introducing cylinder 8 having 4d is slidable in the cylinder 3 and the lock ball 1 A first slide collar provided with a large diameter hole portion 17 for regulating the position of No. 5 on one end side. 16 and a second spring receiving hole 1 on one end side that can slide in the joint rod introducing cylinder 8 Second slide collar 18 forming 9 and end face of the screw rod 5 in the cylindrical body 3. And the end surface of the first slide collar 16 and contact the end surface of the first slide collar 16. A first spring 2 that makes an end elastically contact the end of the large diameter 10 of the joint rod introducing cylinder 8. 0 between the first spring receiving hole 7 and the second spring receiving hole 19 The second slide collar 18 is provided with a lock ball inside the holes 14a to 14d. 15 is the first slide collar 16 and the inner peripheral surface of the large-diameter hole portion 17 and the second slide collar 16. A second spring that springs out to a position where it can be held between the outer surface of the id collar 18 21 and the male joint body 2 is a rod-like body that can be inserted into the joint rod introducing cylinder body 8. An engaging peripheral groove 27 having an arc surface is formed on the peripheral surface on one end side of 26 and a screw portion 28 is formed on the other end side. Since it is formed of the joint rod 25 and the holding nut 29 screwed to the threaded portion 28, The withdrawal load is as large as 14 tons, and a large load is applied because the point to be destroyed is determined. Even if required, the effect that it can be dealt with by partially increasing the strength of the material Have.

[0018]   According to the second aspect of the present invention, the second spring receiving hole 19 is formed on the one end side. The outer periphery of the slide collar 18 on the one end side comes into contact with the end surface of the joint rod introducing cylinder 8. Forming a flange 22 to form the inside of the joint rod introducing cylinder 8 by the second spring 21. Since the sliding position can be regulated at, the effect that the assembly can be done easily Have.

[0019]   According to a third aspect of the invention, the joint rod is provided at one end of the through hole 9 of the joint rod introducing cylinder 8 Since the taper 23 to be introduced into the storage cylinder is formed, the joint rod 25 is introduced into the joint rod. It has an effect that it can be easily inserted into the cylindrical body 8.

[0020]   According to a fourth aspect of the present invention, a threaded rod 5 screwed to both ends of the tubular body and a joint rod introduction tubular body. After adjusting the screwing amount of No. 8 into the cylinder body, these are welded to the cylinder body 24a, 24b. Since it is fixed by pressing, it has the effect that the press-fitting conditions during use become uniform. .

[0021]   According to a fifth aspect of the present invention, one end of the joint rod 25 has a penetrating portion of the joint rod introducing cylinder 8. A chamfer 30 is provided to facilitate insertion into the through hole 9, and a wrench hook is attached to the other end. Since the parts 31a and 31b are formed at opposite positions, it is said that insertion and mounting can be easily performed. Have an effect.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a segment joint device according to an embodiment of the present invention before being joined.

FIG. 2 is a sectional view of a first slide collar.

FIG. 3 is a sectional view of a second slide collar.

FIG. 4 is a cross-sectional view showing a state in which the joint devices of the segments are connected.

FIG. 5 is a plan view showing a state where the segment joint device is attached to the segment.

FIG. 6 is a plan view showing a state in which the segments are joined by a joint device for the segments.

[Explanation of symbols]

1 female joint 2 Male joint body 3 cylinder 4a, 4b screws 5 screw rod 6 screw holes 7 First spring receiving hole 8 Joint rod introduction cylinder 9 through holes 10 Large diameter part 11 screws 12 end faces 13 Small diameter part 14a-14d holes 15 Rock Ball 16 First slide color 17 Large diameter hole 18 Second slide color 19 Second spring receiving hole 20 first spring 21 second spring 22 Flange 23 Dowel 24a, 24b welding 25 joint rod 26 Rod 27 Engagement circumferential groove 28 screw part 29 Holding nut 30 chamfer 31a, 31b Wrench hanging part A joint device S1, S2 segment

Continued front page    (72) Creator Takahiko Tanaka             3-21-8 Higashi-Shinagawa, Shinagawa-ku, Tokyo You             Inside I Kohan Co., Ltd. (72) Inventor Kenji Kaneko             378-3 Kobe, Yoshida-cho, Haibara-gun, Shizuoka Prefecture

Claims (5)

[Scope of utility model registration request] 1. A female joint body 1 which is attached to a rear end of a preceding segment S1 and a front end of a succeeding segment S2 following the preceding segment to firmly connect both segments.
And a male joint body 2. The female joint body 1 has a cylindrical body 3 having screws 4a and 4b formed on the inner circumferences of both ends, and is screwed to one end of the cylindrical body 3 to be joined to the end of the segment. With a screw hole 6 at one end and a first spring receiving hole 7 at the center of the other end, and a through hole 9 into which a joint rod of a male joint body 2 described later can be inserted. A screw 11 is formed on the outer periphery of the diameter portion 10 side so that it can be screwed to the other end of the cylindrical body 3, and a lock ball 15 is exposed at a position where the circumference of the large diameter portion 10 side of the small diameter portion 13 side is equivalent. A plurality of holes 14a to
14d is a joint rod introducing cylinder 8 and a first slide collar 16 is provided with a large diameter hole 17 which can slide in the cylinder 3 and regulates the position of the lock ball 15 on one end side.
And a second slide collar 18 that can slide in the joint rod introducing cylinder 8 and has a second spring receiving hole 19 formed at one end side, and an end surface of the screw rod 5 inside the cylinder 3 and a first slide collar 18. A first spring 20 that comes into contact with the end surface of the slide collar 16 to elastically contact the end portion of the first slide collar 16 with the end of the large diameter portion 10 of the joint rod introducing cylinder 8. The second slide collar 18 is provided between the spring receiving hole 7 and the second spring receiving hole 19 and the second slide collar 18 is provided in the hole 14.
The lock balls 15 in a to 14d are ejected by the first slide collar 16 to a position where they can be held between the inner peripheral surface of the large diameter hole 17 and the outer peripheral surface of the second slide collar 18. The male joint body 2 is formed of the second spring 21 and the male joint body 2 can be inserted into the joint rod introducing cylinder body 26.
Is formed of a joint rod 25 having an arcuate engagement peripheral groove 27 formed on one end side thereof and a threaded portion 28 formed on the other end side thereof, and a holding nut 29 screwed to the threaded portion 25. A segment joint device. 2. A flange 22 is formed on the outer periphery of the second slide collar 18 having a second spring receiving hole 19 formed on one end side thereof, the flange 22 being in contact with the end surface of the joint rod introducing cylinder 8. 2. The segment joint device according to claim 1, wherein the spring 21 is capable of restricting a sliding position in the joint rod introducing cylinder 8. 3. The segment joint device according to claim 1, wherein a taper 23 for introducing the joint rod into the cylindrical body is formed at one end of the through hole 9 of the joint rod introducing cylindrical body 8. 4. A screw rod 5 screwed to both ends of the tubular body, and an amount of screwing of a joint rod introducing tubular body 8 into the tubular body 8 are adjusted, and then these are welded to the tubular body 24a, The joint device for a segment according to any one of claims 1, 2 and 3, characterized in that it is fixed by being fixed at 24b. 5. A chamfer 3 for facilitating the insertion of the joint rod introducing cylinder 8 into the through hole 9 at one end of the joint rod 25.
0, and wrench hooks 31a and 31b are formed at opposite positions on the other end side.
And the joint device of the segment described in 4.