JP3047442U - Connection nut with diaphragm formed - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To enable a tip of a full-torsion bolt or a general bolt to be tightened to both sides of a connection nut to a constant depth on both sides of the connection nut, and at the same time, one of the bolts on both sides. To prevent too much progress. SOLUTION: In a connection nut A to be a tube-shaped connection nut main body 1 having alternately screwed female threads 3 and 3 formed on inner peripheral edges on both sides, a center of the connection nut main body 1 is provided. , Forming a diaphragm 2 having a constant thickness.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a connecting nut having a diaphragm formed therein, and more specifically, a female thread portion having a constant spiral length and having internal helical directions on both sides constituting a connecting nut. In this case, by forming a diaphragm at the center inside in the length direction, the tip of a total torsion bolt or a general bolt tightened on both sides of the connection nut can be tightened to a certain depth on both sides of the connection nut. In addition, by stopping one of the bolts on both sides from progressing too far and preventing the other bolt from coming off from the connecting nut, the safety of the support clamped by the connecting nut can be reduced. Can be achieved.

[0002]

[Prior art]

 Generally, in order to support structures that must be installed at a distance far from the basement or the ceiling of the building, a large number of full-length torsion bolts are connected to separate from the ceiling surface. In this case, in order to connect the bolts of a large number of total torsion bolts to each other to create a predetermined length, make sure that the inner peripheral edges on both sides are in alternate directions. A connecting nut in the form of a tube is required.

[0003] However, as shown in a cross-sectional view in FIG. 4, a connection nut generally used so far is formed by forming a female threaded portion on an inner peripheral edge of a main body 02 of a connection nut that has become a tubular body. The bolts B and B on both sides were connected to each other by tightening a full screw bolt or a general bolt B at both ends.

[0004]

[Problems to be solved by the invention]

 The connection nut 01 having such a configuration is provided with a bolt B which is fastened to the inner peripheral edge from both sides from an empty state in which no snagging film is formed inside the main body 02 of the tubular nut. Since the operator cannot know how much the tip was tightened, not only is it difficult to connect the bolt B, but also if the bolts are tightened differently, one of the bolts will have a small portion of the tip. Both bolts can only be fastened to the connecting nut and only a small part of the opposite bolt can be fastened to the connecting nut, so that both bolts can be tied to the imperfect condition via the connecting nut. Therefore, there has been a problem in that it has a serious impact on safety as a support for various structures.

When one of the bolts is continuously rotated in a state where the inside of the connection nut and the ends of both bolts are connected, the connection nut fastened to the other bolt is rotated together with the other bolt. The bolts are loosened from each other, which may result in the danger of separating the two bolts.

[0006] Accordingly, the present invention takes into account the various problems of the conventional connection nut as described above, and forms a diaphragm at the center of the inside of the connection nut, thereby limiting the tightening of bolts to the connection nut. Not only can the bolts be connected easily with the connecting nuts, but also the bolts can be tightened into the connecting nuts so that the ends of both bolts are balanced, so that various structures using this can be used. An object of the present invention is to provide a connecting nut having a diaphragm formed thereon that can be safely used as a support.

[0007]

[Means for Solving the Problems]

 This invention can solve the above problem by providing the following configuration.

(1) In a connection nut A which is a tubular connection nut main body 1 having alternately threaded female threads 3, 3 formed on inner peripheral edges on both sides, respectively, the connection nut main body 1 A connecting nut having a diaphragm formed thereon, wherein a diaphragm 2 having a constant thickness is formed at the center of the connecting nut.

(2) In the above (1), a ring-shaped projection 4 having a constant thickness corresponding to the diaphragm 2 is formed at the center of the main body 1 of the connection nut. Connecting nut.

[0010]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described.

[0011] In the connection nut A which becomes the main body 1 of the tube-type connection nut in which the internal thread portions 3 and 3 in the spiral direction are formed on the inner peripheral edges on both sides, the length direction of the main body 1 of the connection nut At the center is a connecting nut having a diaphragm formed thereon, which forms a diaphragm 2 having a constant thickness.

In the above configuration, a ring-shaped projection 4 is formed on the inner peripheral edge of the main body 1 of the connection nut having a perforated structure corresponding to the diaphragm 2 formed in the center of the main body 1 of the connection nut. As a result, the protruding claw 4 specifies the limit of the tightening of the bolt to be tightened to the female screw portion 3 as in the above example, and the depth (length) of the tightening of both bolts B to the connecting nut A is always constant. Can be maintained.

A description will be given of a practical use state and an operation effect of the connecting nut having the above-described configuration and having the diaphragm formed according to the present invention.

First, in order to suspend and suspend various structures, if it is intended to increase the length of a bolt or a general bolt as a supporter, as shown in FIG. This is to tighten the ends of the bolts B to be connected through the openings on both sides of the main body 1 of the connecting nut forming the connecting nut A. At this time, the two bolts B are rotated inside the connecting nut A to the maximum extent. When the bolts are tightened, the ends of both bolts are prevented from proceeding further into the connecting nut A by the diaphragm 2, and the ends of both bolts B are inserted into the connecting nut A to a certain depth and tightened. Will be maintained.

As described above, in the process of inserting the bolt B into the connecting nut A and tightening, each bolt B is inserted and tightened only to a predetermined depth due to the presence of the diaphragm 2 formed in the center of the inside of the connecting nut 1. As a result, not only the bolt B on one side of both bolts B inserted too much can prevent incomplete tightening due to being tightened, but also the bolt B on one side that has already been tightened can be tightened later by the bolt B Since the loosening from the tightening nut A does not occur, it can be installed and used as a more reliable and complete means of supporting the structure.

Similarly, instead of the diaphragm 2, as shown in FIG. 3A, a configuration in which the projection 4 is formed at the center of the main body 1 of the connecting nut in a ring shape as shown in FIG. The depth of insertion and tightening of the bolt B into the connection nut A can be kept constant.

In the above-described configuration, in the main body, the case where the diaphragm 2 or the pawl 4 is installed inside the connecting nut A for connecting the bolt B and the bolt B to each other has been described as an example. c) A female thread 3 is formed on one side of the tubular body as shown in FIG. 3C, and a number of incisions 5 are formed on the other side. The diaphragm 2 and the pawl 4 are also formed at the center in the direction of the arrow to restrict excessively inserting the strung anchor bolts to be inserted and tightened into the nut portion 3 so as to limit the practical range thereof. It does not do.

[0018]

[Effect of the invention]

 As can be clearly seen from the above description, according to the connecting nut having the diaphragm of the present invention, the diaphragm is formed in the middle portion of the main body of the connecting nut which has become a tube, so that it is inserted and tightened on both sides. It is possible to insert the bolts on both sides of the connecting nut so that the ends of both bolts are balanced, while ensuring that the tightening limit of the bolts that can be tightened can be understood. It provides useful effects such as safe use as a support for support.

[Brief description of the drawings]

FIG. 1 is a partially cutaway slope view showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the same use state as above.

FIGS. 3A, 3B and 3C are longitudinal sectional views of different embodiments, respectively.

FIG. 4 is a longitudinal sectional view showing a conventional configuration and a use state.

[Explanation of symbols]

 A Connecting nut B Bolt 1 Main body 2 Diaphragm 3 Female thread

Claims (2)

[Utility model registration claims] 1. A connecting nut A which is a tubular connecting nut body 1 having alternately threaded female threads 3 and 3 formed on inner peripheral edges on both sides, respectively. A connecting nut having a diaphragm formed at a center thereof, wherein the diaphragm has a constant thickness. 2. The diaphragm according to claim 1, wherein a ring-shaped projection 4 having a constant thickness corresponding to the diaphragm 2 is formed at the center of the main body 1 of the connecting nut. Connecting nut.