CN108458851B

CN108458851B - Rapid fastening device for wind tunnel experiment spray pipe for aerospace

Info

Publication number: CN108458851B
Application number: CN201810099837.4A
Authority: CN
Inventors: 倪惠芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-01-31
Filing date: 2018-01-31
Publication date: 2020-08-28
Anticipated expiration: 2038-01-31
Also published as: CN108458851A

Abstract

The invention discloses a quick fastening device for an aerospace wind tunnel experiment spray pipe, which comprises a connecting pipe and a spray pipe, wherein a first spray pipe groove is communicated with the middle part of the connecting pipe, the spray pipe penetrates through the first spray pipe groove and extends to the outer end of the connecting pipe, a connecting rod is inserted in the connecting groove, a positioning groove with an arc-shaped section is formed in a fixing ring, the end part of the positioning groove is communicated with the sliding groove, a sliding block penetrates through the sliding groove and is movably clamped in the positioning groove, and a second spray pipe groove is formed in the lower surface of the fixing ring. The clamping blocks arranged on the two sides are clamped in the sliding grooves, so that the structure is inserted into the fixing ring; in addition, the rotary connecting pipe enables the clamping block to be clamped in the positioning groove in a rotating mode, the end portion of the spray pipe penetrates through the second spray pipe groove, the fixing seat is arranged on the lower surface of the fixing ring, the spring and the positioning block are arranged inside the fixing seat, and the spring clamps the positioning block in the annular groove through elastic force, so that the spray pipe is stable in structure.

Description

Rapid fastening device for wind tunnel experiment spray pipe for aerospace

Technical Field

The invention relates to the technical field of aerospace equipment, in particular to a quick fastening device for a wind tunnel experiment spray pipe for aerospace.

Background

The development of aerospace industry is the result of the leap progress of scientific technology in the 20 th century and the leap forward of social production. Aerospace efforts have focused on numerous new achievements in science and technology. Although the aerospace activities so far only leave the earth in the first few steps of the cradle, the aerospace activities have far exceeded the scientific and technical field and have widely and profoundly influenced political, economic, military and even human social life, and the wind tunnel experiment is an aerodynamic experiment method for researching gas flow and interaction between the gas flow and a model to know the aerodynamic characteristics of an actual aircraft or other objects, wherein the requirement on connection of spray pipes is relatively high, so that a device for quickly fastening the spray pipes in the wind tunnel experiment for aerospace is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a quick fastening device for a wind tunnel experiment spray pipe for aerospace, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a quick fastening device for a wind tunnel experiment spray pipe for aerospace comprises a connecting pipe and a spray pipe, wherein a first spray pipe groove is communicated with the middle of the connecting pipe, the spray pipe penetrates through the first spray pipe groove and extends to the outer end of the connecting pipe, a ring groove is formed in the end part of the spray pipe, a clamping block is symmetrically and vertically welded on the end part of the connecting pipe, a fixing ring is arranged at the lower end of the connecting pipe, a connecting groove is communicated with the inside of the fixing ring, a sliding groove is symmetrically formed in the upper surface of the fixing ring and communicated with the connecting groove, a connecting rod is inserted into the connecting groove, a positioning groove with an arc-shaped cross section is formed in the fixing ring, the end part of the positioning groove is communicated with the sliding groove, a sliding block penetrates through the sliding groove and is movably clamped in the positioning groove, a second spray pipe groove is formed in the, the fixing base is symmetrically welded and installed on the lower surface of the fixing ring, the spring groove is formed in one side of the fixing base, the spring is fixedly installed in the spring groove, the end portion of the spring is connected with the positioning block, and the positioning block is clamped and arranged in the annular groove.

Preferably, the connecting pipe is a cylindrical metal structure, the length of the connecting pipe is smaller than that of the spray pipe, the length of the first spray pipe groove is the same as that of the connecting pipe, the diameter of the first spray pipe groove is the same as that of the spray pipe, and the spray pipe is a metal tubular structure with a conical end.

Preferably, the surface of connecting groove and the surface of go-between are laminated mutually and are set up, and the length of this connecting groove is not more than the half of solid fixed ring's height, 2 in total, and the symmetric distribution is in the both sides of connecting groove, and the length of this spout is the same with the length of connecting groove.

Preferably, the fixture block is a metal block structure with a square cross section, the surface of the fixture block is attached to the square chute, the fixture block can also be an arc-shaped block structure with a cross section, and the surface of the fixture block is attached to the inner wall of the arc-shaped chute.

Preferably, the positioning groove is a fixing groove with an arc-shaped section, the length of the positioning groove is at most half of the circumference of the section of the connecting ring, and the height of the positioning groove is the same as that of the fixture block.

Preferably, the fixing bases are two in number and symmetrically distributed on two sides of the second spray pipe groove, the diameter of the spring groove is the same as that of the positioning block, the positioning block is of an arc-shaped clamp-shaped structure, and the surface of the positioning block is attached to the inner wall of the annular groove.

Compared with the prior art, the invention has the beneficial effects that:

1. the surface of the spray pipe is sleeved with a connecting pipe which mainly plays a connecting role, namely the connecting pipe is clamped in a connecting groove of the fixing ring and is clamped in the sliding groove through the clamping blocks arranged on the two sides, so that the structure is inserted in the fixing ring;

2. in addition, the connecting pipe is rotated to enable the clamping block to be rotatably clamped in the positioning groove, so that the structure is stable, and meanwhile, the end part of the spray pipe penetrates through the second spray pipe groove;

3. the lower surface of the fixing ring is provided with a fixing seat, a spring and a positioning block are arranged inside the fixing seat, and the spring clamps the positioning block in the annular groove through elasticity, so that the structure of the spray pipe is stable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional side view of the present invention;

fig. 3 is an enlarged schematic view of a structure in fig. 1.

In the figure: the spray pipe comprises a connecting pipe 1, a first spray pipe groove 2, a spray pipe 3, a ring groove 4, a clamping block 5, a fixing ring 6, a sliding groove 7, a positioning groove 8, a connecting groove 9, a second spray pipe groove 10, a fixing seat 11, a spring groove 12, a spring 13 and a positioning block 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a quick fastening device for an aerospace wind tunnel experiment spray pipe comprises a connecting pipe 1 and a spray pipe 3, a first spray pipe groove 2 is communicated with the middle of the connecting pipe 1, the spray pipe 3 penetrates through the first spray pipe groove 2 and extends to the outer end of the connecting pipe 1, a ring groove 4 is formed in the end portion of the spray pipe 3, a clamping block 5 is symmetrically and vertically welded on the end portion of the connecting pipe 1, a fixing ring 6 is arranged at the lower end of the connecting pipe 1, a connecting groove 9 is communicated with the inside of the fixing ring 6, a sliding groove 7 is symmetrically formed in the upper surface of the fixing ring 6, the sliding groove 7 is communicated with the connecting groove 9, a connecting rod is inserted into the connecting groove 9, a positioning groove 8 with an arc-shaped cross section is formed in the fixing ring 6, the end portion of the positioning groove 8 is communicated with the sliding groove 7, a sliding block penetrates through the sliding groove 7, spray tube 3 runs through second spray tube groove 10 and sets up, and the lower surface symmetry welding of solid fixed ring 6 installs fixing base 11, and spring groove 12 has been seted up to one side of fixing base 11, and the inside fixed mounting of spring groove 12 has spring 13, and the end connection of spring 13 has locating piece 14, and locating piece 14 joint sets up in the inside of annular 4.

Further, as shown in fig. 1, the connection pipe 1 is a cylindrical metal structure, the length of the connection pipe 1 is smaller than that of the spray pipe 3, the length of the first spray pipe groove 2 is the same as that of the connection pipe 1, the diameter of the first spray pipe groove 2 is the same as that of the spray pipe 3, the spray pipe 3 is a metal tubular structure with a tapered end, the surface of the connection groove 9 is attached to the surface of the connection ring, the length of the connection groove 9 is not more than half of the height of the fixing ring 6, the number of the sliding grooves 7 is 2, the sliding grooves are symmetrically distributed on two sides of the connection groove 9, and the length of the sliding grooves 7 is the same as that of the connection groove 9; the connecting pipe 1 is sleeved on the surface of the spray pipe 3, the connecting pipe 1 mainly plays a connecting role, namely the connecting pipe 1 is clamped in a connecting groove 9 of the fixing ring 6, and is clamped in a sliding groove 7 through clamping blocks 5 arranged on two sides, so that the structure is inserted in the fixing ring 6.

Further, as shown in fig. 2 and 3, the fixture block 5 is a metal block structure with a square cross section, the surface of the fixture block 5 is attached to the square sliding groove 7, the fixture block 5 may also be a block structure with an arc cross section, the surface of the fixture block 5 is attached to the inner wall of the arc sliding groove 7, the positioning groove 8 is a fixing groove with an arc cross section, the length of the positioning groove 8 is at most half of the perimeter of the cross section of the connecting ring, the height of the positioning groove 8 is the same as the height of the fixture block 5, two fixing seats 11 are provided and symmetrically distributed on two sides of the second nozzle groove 10, the diameter of the spring groove 12 is the same as that of the positioning block 14, the positioning block 14 is an arc-shaped clip-shaped structure, and the surface of the positioning block 14 is attached to the inner wall of the ring groove; in addition, the rotary connecting pipe 1 enables the clamping block 7 to be rotatably clamped in the positioning groove 8, so that the structure is stable, meanwhile, the end part of the spray pipe 3 penetrates through the second spray pipe groove 10, the fixing seat 11 is arranged on the lower surface of the fixing ring 6, the spring 13 and the positioning block 14 are arranged inside the fixing seat 11, the spring 13 clamps the positioning block 14 in the ring groove 4 through elastic force, and the spray pipe 3 is stable in structure.

The working principle is as follows: the connecting pipe 1 is sleeved on the surface of the spray pipe 3, and the connecting pipe 1 mainly plays a connecting role, namely the connecting pipe 1 is clamped in a connecting groove 9 of a fixing ring 6 and clamped in a sliding groove 7 through clamping blocks 5 arranged on two sides, so that the structure is inserted in the fixing ring 6; in addition, the rotary connecting pipe 1 enables the clamping block 7 to be rotatably clamped in the positioning groove 8, so that the structure is stable, meanwhile, the end part of the spray pipe 3 penetrates through the second spray pipe groove 10, the fixing seat 11 is arranged on the lower surface of the fixing ring 6, the spring 13 and the positioning block 14 are arranged inside the fixing seat 11, the spring 13 clamps the positioning block 14 in the ring groove 4 through elastic force, and the spray pipe 3 is stable in structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Claims

1. The utility model provides a quick fastener of wind-tunnel experiment spray tube for aerospace, includes connecting pipe (1) and spray tube (3), its characterized in that: the middle part of the connecting pipe (1) is communicated with a first spraying pipe groove (2), the spraying pipe (3) penetrates through the first spraying pipe groove (2) and extends to the outer end of the connecting pipe (1), an annular groove (4) is formed in the end part of the spraying pipe (3), a clamping block (5) is symmetrically and vertically welded to the end part of the connecting pipe (1), a fixing ring (6) is arranged at the lower end of the connecting pipe (1), a connecting groove (9) is formed in the fixing ring (6) in a communicated manner, a sliding groove (7) is symmetrically formed in the upper surface of the fixing ring (6), the sliding groove (7) is communicated with the connecting groove (9), the connecting pipe (1) is spliced in the connecting groove (9), the connecting pipe (1) is of a cylindrical metal structure, the length of the connecting pipe (1) is smaller than that of the spraying pipe (3), the length of the first spraying pipe groove (2) is the same as that of, the diameter of the first spray pipe groove (2) is the same as that of the spray pipe (3), the spray pipe (3) is of a conical metal tubular structure, a positioning groove (8) with an arc-shaped cross section is formed in the fixing ring (6), the end part of the positioning groove (8) is communicated with the sliding groove (7), the clamping block (5) penetrates through the sliding groove (7) and is movably clamped in the positioning groove (8), the lower surface of the fixing ring (6) is provided with a second spray pipe groove (10), the spray pipe (3) penetrates through the second spray pipe groove (10), the lower surface of the fixing ring (6) is symmetrically welded with a fixing seat (11), one side of the fixing seat (11) is provided with a spring groove (12), a spring (13) is fixedly mounted in the spring groove (12), and the end part of the spring (13) is connected with a positioning block (14), the positioning block (14) is clamped and arranged inside the annular groove (4).

2. The aerospace wind tunnel experiment nozzle rapid fastening device according to claim 1, wherein: the surface of spread groove (9) and the surface of solid fixed ring (6) are laminated mutually and are set up, and the length of this spread groove (9) is not more than the half of the height of solid fixed ring (6), spout (7) are total 2, and the symmetric distribution is in the both sides of spread groove (9), and the length of this spout (7) is the same with the length of spread groove (9).

3. The aerospace wind tunnel experiment nozzle rapid fastening device according to claim 1, wherein: fixture block (5) are square metal block structure for the cross-section, and the surface of this fixture block (5) and square shape spout (7) are laminated mutually and are set up, and this fixture block (5) also can be curved block structure for the cross-section, and the surface and curved spout (7) inner wall of this fixture block (5) are laminated mutually and are set up.

4. The aerospace wind tunnel experiment nozzle rapid fastening device according to claim 1, wherein: the cross section of the positioning groove (8) is an arc-shaped fixing groove, the length of the positioning groove (8) is at most half of the perimeter of the cross section of the fixing ring (6), and the height of the positioning groove (8) is the same as that of the clamping block (5).

5. The aerospace wind tunnel experiment nozzle rapid fastening device according to claim 1, wherein: fixing base (11) are total two, and the symmetric distribution is in the both sides of second nozzle groove (10), the diameter of spring groove (12) is the same with the diameter of locating piece (14), and this locating piece (14) are curved clamp structure, the surface of locating piece (14) and the inner wall of annular (4) are laminated mutually and are set up.