Adapter joint

Abstract

The utility model discloses a conversion connector which comprises a connector body, a wrench clamping position is arranged in the middle of the connector body, and a conical transition structure is arranged on the upper portion of the connector body. Connecting threads are arranged at the two ends of the connector body. According to the utility model, the tapered transition structure effectively ensures the passing ability and smoothness of the variable caliber; the connecting threads are trapezoidal threads, the thread forms of the connecting threads are isosceles trapezoids, the thread form angle is 30 degrees, the inner threads and the outer threads are tightly attached through conical surfaces and are not prone to loosening, and the advantages of being good in tooth form strength, large in thread pitch, good in transmission performance, high in durability and the like are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of joints of inclinometers, in particular to a conversion joint. Background Art

[0002] The conversion joint is a special process device that connects different outer diameters after reducing them during drilling measurement.

[0003] During use, friction between materials of the conversion joint in the prior art makes the surface uneven, thus affecting work efficiency or product quality. Utility Model Content

[0004] The purpose of the utility model is to provide a conversion joint to solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a conversion joint, including a joint body, a wrench clamping position is arranged in the middle of the joint body, and a conical transition structure is arranged on the upper part of the joint body; connecting threads are arranged at both ends of the joint body.

[0006] Preferably, the connecting thread is a trapezoidal thread.

[0007] Preferably, the thread profile of the connecting thread is an isosceles trapezoid, and the thread profile angle is 30°.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] The tapered transition structure effectively ensures the passability and smoothness of the caliber change.

[0010] The connecting thread adopts trapezoidal thread. The tooth profile of the connecting thread is an isosceles trapezoid with a tooth angle of 30°. The internal and external threads are tightly attached to the conical surface and are not easy to loosen. It has the advantages of good tooth strength, large pitch, good transmission performance and strong durability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure: 1. Connector body; 2. Wrench clamping position; 3. Conical transition structure; 4. Connecting thread. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0015] See also Figure 1 In an embodiment of the utility model, a conversion joint includes a joint body 1, a wrench clamping position 2 is arranged in the middle of the joint body 1, and a conical transition structure 3 is arranged on the upper part of the joint body 1, which effectively ensures the passability and smoothness of the caliber change; connecting threads 4 are arranged at both ends of the joint body 1; the connecting threads 4 adopt trapezoidal threads; the tooth profile of the connecting threads 4 is an isosceles trapezoid, the tooth profile angle is 30°, the inner and outer threads are tightly attached to the conical surface and are not easy to loosen, the tooth profile strength is good, the pitch is large, the transmission performance is good, the durability is strong, etc.

[0016] The working principle of the utility model is: the wrench clamping position is designed with a clamping position, and a tightening wrench is used to tighten and connect with the probe or extension rod; the conical transition structure effectively ensures the passability and smoothness of the changed caliber; the connecting thread adopts a trapezoidal thread, the tooth profile of the connecting thread is an isosceles trapezoid, the tooth profile angle is 30°, the inner and outer threads are tightly attached to the conical surface and are not easy to loosen, the tooth strength is good, the pitch is large, the transmission performance is good, the durability is strong, etc.

[0017] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A conversion joint, comprising a joint body (1), characterized in that: A wrench clamping position (2) is provided in the middle of the joint body (1), and a conical transition structure (3) is provided on the upper part of the joint body (1); connecting threads (4) are provided at both ends of the joint body (1).

2. A conversion joint according to claim 1, characterized in that: The connecting thread (4) is a trapezoidal thread.

3. A conversion joint according to claim 2, characterized in that: The thread profile of the connecting thread (4) is an isosceles trapezoid, and the thread profile angle is 30°.

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