CN219134483U

CN219134483U - Connecting rod with adjustable length

Info

Publication number: CN219134483U
Application number: CN202222807026.XU
Authority: CN
Inventors: 孙志武
Original assignee: Shanghai Zhehang Helicopter Technology Co Ltd
Current assignee: Shanghai Zhehang Helicopter Technology Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-06-06
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to the technical field of helicopter parts, in particular to a connecting rod with adjustable length, which comprises: the two ends of the supporting steel pipe are respectively provided with a joint through the connecting sleeve; one end of the connecting sleeve is inserted and fixed in a pipe orifice at the end part of the supporting steel pipe; a left-handed thread groove is formed in the connecting sleeve at the left end of the supporting steel pipe, and one end of the connector is screwed on the connecting sleeve through the left-handed thread groove; the connecting sleeve at the right end of the supporting steel pipe is provided with a right-hand thread groove, and one end of the connector is screwed on the connecting sleeve through the right-hand thread groove. The connector of the connecting rod is screwed on the connecting sleeves at two ends of the supporting steel pipe through left-handed threads or right-handed threads, the extension length of the two ends of the supporting steel pipe can be adjusted by changing the screwing length of the connector, so that the length adjusting function is achieved, the connecting rod can be adapted to a helicopter body frame to play a supporting role in different application scenes, the manufacturing cost of a helicopter is reduced, and the installation of the helicopter body is facilitated.

Description

Connecting rod with adjustable length

Technical Field

The utility model relates to the technical field of helicopter parts, in particular to a connecting rod with adjustable length.

Background

The helicopter is used as a rotor craft, has the characteristics of flexibility and convenience in taking off and landing, the structural strength of the helicopter body determines the flying capacity of the helicopter body, and the structural strength of the helicopter body can be reinforced by additionally installing a supporting structure besides the material of the helicopter body.

At present, current helicopter fuselage consolidates fuselage structure through the connecting rod, the connecting rod mainly plays the effect of supporting reinforcement on fuselage structure, if fuselage casing is inside to consolidate the tie point of predetermineeing through the connecting rod, can consolidate the tie point of predetermineeing through the connecting rod between fuselage outside and the tail boom again like, again like between fuselage internally mounted reduction gear support and the reduction gear also can support the reinforcement through the connecting rod, consequently, can carry out the tie point of consolidating through the connecting rod more in the fuselage structure, because the interval is different between each tie point, need not the connecting rod of different length, it all needs the adaptation production connecting rod of different length to lead to every tie point, not only increase its manufacturing cost, there are the size deviation also to have a great deal of inconvenience during the installation. In view of this, we propose a connecting rod of adjustable length.

Disclosure of Invention

The present utility model is directed to a connecting rod with adjustable length, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a length adjustable connecting rod comprising: the support steel pipe is provided with a support steel pipe, a connecting sleeve and a joint, wherein the two ends of the support steel pipe are respectively provided with the joint through the connecting sleeve; one end of the connecting sleeve is inserted and fixed in a pipe orifice at the end part of the supporting steel pipe; a left-handed thread groove is formed in the connecting sleeve at the left end of the supporting steel pipe, and one end of the joint is screwed on the connecting sleeve through the left-handed thread groove; the connecting sleeve positioned at the right end of the supporting steel pipe is provided with a right-hand thread groove, and one end of the joint is screwed on the connecting sleeve through the right-hand thread groove.

Preferably, one end of the connecting sleeve is inserted into the pipe orifice at the end of the supporting steel pipe and is riveted and fixed through a plurality of groups of rivets.

Preferably, the connector comprises a connector end and an external thread screwing end, the connector end is provided with a joint bearing for connecting a helicopter body, and the external thread screwing end is screwed with a limit nut.

Compared with the prior art, the utility model has the beneficial effects that: this connecting rod of adjustable length connects on the adapter sleeve at support steel pipe both ends through left-handed screw or right-handed screw soon, changes the extension length that connects the length of connecing soon can adjust support steel pipe both ends to this plays the effect of adjusting length, and the opposite direction of left-handed and right-handed connection connects soon can avoid supporting steel pipe both ends and takes place not hard up condition at the joint under rocking the condition, makes this connecting rod can both adapt to the fuselage framework under different application scenarios and plays the supporting role, reduces the manufacturing cost of helicopter, is convenient for helicopter fuselage installation.

Drawings

FIG. 1 is a front elevational view of the overall structure of the present utility model;

fig. 2 is a cross-sectional view of the overall structure of the present utility model.

In the figure: 1. supporting the steel pipe; 2. connecting sleeves; 21. a rivet; 3. a joint; 31. a connector end; 311. a knuckle bearing; 32. an external thread screwed end; 321. and (5) limiting the nut.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be. In the description of the present utility model, "multiple" means two or more unless specifically defined otherwise.

Referring to fig. 1 and 2, the present utility model provides a technical solution:

a length adjustable connecting rod comprising: the two ends of the supporting steel pipe 1 are provided with connectors 3 with adjustable screwing lengths through the connecting sleeves 2; one end of the connecting sleeve 2 is inserted and fixed in a pipe orifice at the end part of the supporting steel pipe 1; a left-handed thread groove is formed in the connecting sleeve 2 positioned at the left end of the supporting steel pipe 1, and one end of the joint 3 is screwed on the connecting sleeve 2 through the left-handed thread groove; the connecting sleeve 2 positioned at the right end of the supporting steel pipe 1 is provided with a right-hand thread groove, and one end of the joint 3 is screwed on the connecting sleeve 2 through the right-hand thread groove. Therefore, because the two ends of the supporting steel pipe 1 are connected with the joints 3 through the connecting sleeve 2, the supporting points inside the helicopter fuselage can be connected through the joints 3, such as the joints 3 at one end of the supporting steel pipe 1 are connected with the top wall of the fuselage frame of the helicopter fuselage, the joints 3 at the other end are connected with the bottom wall of the fuselage frame of the helicopter fuselage, the helicopter tail beam is connected at the other end, the supporting structure is formed between the tail of the helicopter fuselage and the tail beam, meanwhile, the joints 3 at one end of the supporting steel pipe 1 are screwed through left-handed thread grooves, the other ends are screwed through right-handed threads, the extending lengths of the two ends of the supporting steel pipe 1 can be adjusted through the screwing length of the joints 3, the effect of adjusting the length is achieved, and the unscrewing of the two ends of the supporting steel pipe 1 in opposite directions of the left-handed and right-handed connection can be avoided under the shaking condition that the joints 3 are loose, so that the connecting rod can adapt to the fuselage frame under different application scenes to play a supporting role.

It should be noted that one end of the connecting sleeve 2 is inserted into a pipe orifice at the end of the supporting steel pipe 1 and is riveted and fixed through a plurality of groups of rivets 21. In this embodiment, a plurality of groups of rivet holes are preset at the end of the supporting steel pipe 1 and at one end of the connecting sleeve 2 inserted into the pipe orifice of the end of the supporting steel pipe 1, and the connecting sleeve 2 is inserted into the rivet holes of the two supporting steel pipe 1 when inserted into the pipe orifice of the end of the supporting steel pipe, and then is connected and fixed by the rivet 21, so that the structural stability of the joint of the connecting sleeve 2 and the supporting steel pipe 1 is improved.

Specifically, the joint 3 includes a joint end 31 and an external screw thread screwed end 32, and the joint end 31 is provided with a knuckle bearing 311 for connecting with a helicopter body, and the external screw thread screwed end 32 is screwed with a limit nut 321. The joint end 31 of the joint 3 is conveniently connected with a preset stable point on the helicopter body through the joint bearing 311, the joint bearing 311 has certain steering capacity and plays a role in pressure relief and energy absorption, meanwhile, the external thread screwing end 32 of the joint 3 is screwed into one end in a left-handed thread groove or a right-handed thread groove through the limit nut 321 to limit, the structural strength of a joint is improved, and the phenomenon that the external thread screwing end 32 slides when shaking is avoided.

When the connecting rod with adjustable length of the embodiment is used, as the two ends of the supporting steel pipe 1 are connected with the joints 3 through the connecting sleeve 2, the supporting points inside the helicopter body can be connected through the joints 3, such as the joints 3 at one end of the supporting steel pipe 1 are connected with the top wall of the frame of the helicopter body, the joints 3 at the other end are connected with the bottom wall of the frame of the helicopter body, the connecting rod is used for supporting the internal structure of the helicopter body, such as the joints 3 at one end of the supporting steel pipe 1 are connected with the tail beam of the helicopter body, the other end of the supporting steel pipe 1 is connected with the tail beam of the helicopter body through the left-handed thread grooves, the other end of the supporting steel pipe is connected with the other end of the supporting steel pipe through the right-handed threads, the extending lengths of the two ends of the supporting steel pipe 1 can be adjusted through the screwing lengths of the joints 3, the screwing of the opposite directions of the left-handed and right-handed connections can avoid the loosening of the joints 3 at the two ends of the supporting steel pipe 1 under the shaking condition, the condition that the connecting rod can adapt to the frame of the helicopter body under different application scenes, the helicopter body frame plays a supporting role is reduced, and the helicopter body installation cost is facilitated.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A length-adjustable connecting rod, comprising: the support steel pipe (1), a connecting sleeve (2) and a joint (3), wherein the two ends of the support steel pipe (1) are respectively provided with the joint (3) with adjustable screwing length through the connecting sleeve (2);

one end of the connecting sleeve (2) is inserted and fixed in a pipe orifice at the end part of the supporting steel pipe (1);

a left-handed thread groove is formed in the connecting sleeve (2) positioned at the left end of the supporting steel pipe (1), and one end of the joint (3) is screwed on the connecting sleeve (2) through the left-handed thread groove;

the right-hand thread groove is formed in the connecting sleeve (2) at the right end of the supporting steel pipe (1), and one end of the joint (3) is connected to the connecting sleeve (2) in a screwed mode through the right-hand thread groove.

2. The length-adjustable connecting rod of claim 1, wherein: one end of the connecting sleeve (2) is inserted into a pipe orifice at the end part of the supporting steel pipe (1) and is riveted and fixed through a plurality of groups of rivets (21).

3. The length-adjustable connecting rod of claim 1, wherein: the connector (3) comprises a connector end (31) and an external thread screwing end (32), a joint bearing (311) used for connecting a helicopter body is arranged on the connector end (31), and a limit nut (321) is screwed on the external thread screwing end (32).