JPS6231710A - Method of connecting screw bar - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for connecting threaded rods, which is widely used in architecture, civil engineering, various machines, etc.

[Conventional technology]

Conventional methods for connecting two screws fi include connecting with turnbuckles, welding, and inserting the ends of two threaded rods connected into the cylinder into the coaxial center from opposite directions to connect the screw shaft with a screw rod. A known method is to connect two threaded rods by fixing each rod to a cylindrical body.

[Problem that the invention seeks to solve]

Both the method of connecting with a turnbuckle and the method of fixing the cylindrical body to a rigid body with a screw shaft cannot exceed the length of the turnbuckle and the length of the i-body during adjustment of the length of the screw shaft. Moreover, the turnbuckle rotation operation work,
Fixing work by firmly tightening with screw rods is time-consuming and cannot be done quickly, and there is a problem in that work at high places such as the foundation of the ceiling of a building is delayed.

Next, is the method by welding a welding device? 1 requires a lot of time and effort, and there are problems in that working at heights is dangerous.

[Means for solving problems]

The present invention aims to solve these problems and provide an excellent method for connecting screw frames that can be connected extremely quickly and easily, and the length of the screw rod can be largely adjusted on site. A plurality of threaded rods (1) with the same pitch to be connected are brought into contact in parallel so as to mesh with each other, and then a hollow cavity (2) having the same cross-sectional shape as the envelope outer circumferential shape of the meshed threaded rod group is formed. and a stopper protrusion (3) at the end or a screw rod (4) that advances and retreats at right angles to the screw rod.
etc. stopper I'1). (After fitting and inserting the cylinder (5) having R into the screw group and inserting it up to the meshing connection part of the threaded rod (1), the cylinder (5) ), the threaded rods (1) are held in a connected state with each other by stopping the movement of the threaded rods (1).

[Effect]

In this invention, a plurality of screw shafts (1) to be connected are brought together in a row, and the screw shafts (1) are meshed with each other by the required length.Then, the cylindrical body (5) is slid in the axial direction and meshed. heavy r
) part. At this position, insert the stopper protrusion (3) or screw rod (4) into the cylinder (5) and screw the screw shaft (
The movement of the cylindrical body (5) is stopped by a stopper mechanism such as abutment against the cylinder (5). The cylindrical body (5) may be inserted into one threaded rod (1) before engagement, or after engagement, it may be inserted from the rod end of one threaded rod and moved by sliding into the engagement part. An appropriate method is adopted depending on the mounting condition of the threaded rod and the usage of the threaded body. and cylinder (5)
The stopper mechanism t is not strong enough to fix the cylinder body (5) with strong pressing force or frictional force on the threaded rod (1), but prevents the cylinder body (5) from slipping and moving. As long as it has something to do with it, even a light attachment is sufficient.

In this state, when the cylindrical body (5) is positioned at the engagement portion of the threaded rod (1), even if the threaded rod (1) is pulled in its axial direction, it will be locked by the engagement of the threads and will not move. Also, when the 12-bar rod (1) moves into the groove and loses its engagement, the cylinder body (5)
restrains and prevents this, and always maintains the engaged state. In other words, the cylinder (
The cross-sectional shape of the hollow cavity (2) into which threaded rod 5) is inserted into threaded rod 1) has the same size and shape as the inclusive outer circumference of the engaged threaded rod group, so that threaded rod (1) moves outward even slightly. This is to always maintain the engaged state of the threaded rods without allowing any

Next, after the multiple threaded rods (1) are engaged and restrained by the cylinder (5), the length of the long engaged portion of the threaded rods (1))
When adjusting the pitch, one screw rod (1) is rotated to advance the pitch, and the screw II (1) moves in the axial direction. The sliding operation of the cylinder body [5] and the rotation operation of the threaded rod (1) of the present invention can be performed more easily and quickly than in the conventional method. In the first embodiment, two threaded rods (1) are connected, and the cylindrical body (5) is a short cylinder whose hollow cavity (2) has a peanut-shaped cross section. A portion of the cylindrical wall at the end of one threaded rod insertion space of the hollow cavity (2) is pressed inward to protrude inward to form a stopper protrusion (2). This cylindrical body is inserted through the insertion process shown in Figure 1 (B), the engagement process from the outside of the threaded rods (1) shown in (...), and the lowering of the cylindrical body (5) and the stopper protrusion shown in (D).
In the locking process according to 2), the lower cutting W screw rod (1) of (E) is connected to the upper threaded rod (
1) Connect the screws tt (1) together in the order of fine adjustment operation strokes of raising and lowering the lower threaded rod (1) by turning it around the axis. To disconnect the threaded rod, simply slide the cylindrical body (5) upwards, and the state shown in Fig. 1 (...) can be achieved, allowing immediate separation.

Next, in the second embodiment shown in FIGS. 4 and 5, a rectangular steel block is used as a cylinder (5), a peanut-shaped hollow cavity (2) is bored in this block, and the block-shaped cylinder (5) is screw f on the side
This is an example of a groove structure in which two pieces of f (4) are screwed together, and is used to connect large diameter threaded rods.The connection method, 1) the stroke of the two blues, is the same as the curved brush 1 embodiment.

Incidentally, the procedure for connecting the threaded bodies (]) together using the cylinder body (5) of the present invention is not limited to the process shown in the first embodiment; After meshing, the cylindrical body (
5) is inserted from one end of the threaded rod (1) and moved to the meshing part, then the threaded rod (4) is advanced and comes into contact with the screw formation (1) to fix the cylinder body (5). But okay...
.

In the third embodiment shown in Figures 6 and 7, a peanut-shaped hollow cavity (2) is bored in a vertically long block-shaped one-sided body (5), and a peanut-shaped hollow cavity (2) is bored at a position below the side wall of the pronoine-shaped cylinder (5). Insert the screw rod (4) into the
Kantori 9 (= F digit. In this example, the two screw bodies (1) are aligned on the same axis, and the screw t7g (rH) of both is engaged with the intermediate screw rod (6). , insert the two threaded bodies (1) that are butted together into one screw insertion space p of the hollow cavity (2) of the cylinder body (5), and insert the intermediate threaded rod (6) into the other screw insertion space of the hollow cavity (2) of the cylinder body (5). Insert the block-shaped cylindrical body (5) into the 12-screw insertion space, and fix the cylindrical body (5) to the threaded rod +1+ and the intermediate screw 14+6+ with the threaded rod (4) to engage these threaded rods. In the second example, the tensile and compressive forces acting on the screw rod (1) are coaxially applied to the rod (1), which is advantageous in terms of strength. There is a profit sale.

〔Effect of the invention〕

According to the present invention, the screw frames can be engaged with each other, the cylinder can be slid, and the cylinder can be simply fixed using several stoppers, so the continuous production of the screw rod can be done easily and quickly. The connection position of the screw body, large adjustment of the length, fine 1
``It has the effect of being easy to do, especially in high places, where the footing is difficult (・It is an effective method for connecting rolling rods in field work.

[Brief explanation of drawings]

Fig. 1 is an explanatory view showing the connection work procedure according to the first embodiment of the threaded rod connection method of the present invention, Fig. 2 is a plan view showing the cylinder, and Fig. 3 is an enlarged cross-sectional view taken along the line 1-1 in Fig. 1. , FIG. 4 is a plan view showing the cylindrical body of the second embodiment, FIG. 5 is an explanatory view showing the threaded rod connection state of the same embodiment, and FIG. 6 is a plan view showing the cylindrical body of the third embodiment. FIG. 7 is an explanatory diagram showing a state in which the threaded rod is connected in the same embodiment. (1): Threaded rod (2): Hollow cavity (3):
Stopper protrusion (4): Screw rod (5): Cylindrical body
(6) Intermediate threaded rod patent applicant: Kankyo Kaihatsu Kohan Co., Ltd. Agent: Toshima Ministry Department 4 Figure 7

Claims (1)

[Claims] 1) Multiple threaded rods with the same pitch to be connected (1
) are in parallel contact with each other in a meshed state, and then have a hollow cavity (2) with the same cross-sectional shape as the envelope outer circumferential shape of the meshed threaded rod group, and are perpendicular to the stopper protrusion (3) at the end or the threaded rod. A cylindrical body (5) having a stopper mechanism such as a threaded rod (4) that moves forward and backward is inserted into the screw group, and after the threaded rod (1) is inserted up to the meshing connection part, the stopper projection (3) and the threaded rod (4) are inserted. ) A threaded rod connection method in which the threaded rods (1) are held connected to each other by stopping the movement of the cylindrical body (5) using a stopper mechanism such as a stopper mechanism.