CN210739661U

CN210739661U - Sliding-extrusion type clamping-pressing straight-through reducing joint

Info

Publication number: CN210739661U
Application number: CN201921038067.9U
Authority: CN
Inventors: 蔡云斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-06-12
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a refrigeration pipeline technical field a smooth crowded formula card is pressed and is led directly to reducing and connect, including the material joint main part of brass, first nestification, the second is nested, the first cover body and the second cover body, the joint main part is by coaxial caliper ring, a first joint section of thick bamboo and a second joint section of thick bamboo are connected an organic whole and are constituteed, the internal diameter of a first joint section of thick bamboo and a second joint section of thick bamboo is different, first cover body and second cover body make a first joint section of thick bamboo and a second joint section of thick bamboo warp with the red copper pipe butt deformation realization that corresponds sealed with first joint section of thick bamboo and second joint section of thick bamboo joint that corresponds respectively, the utility model discloses a welding through not using naked light solves steel material card and presses the easy problem of pipe fitting to grow rust, makes the straight-through installation of the refrigeration pipe of different pipe diameters convenient more, and the anti potential corrosion of brass material can not rust.

Description

Sliding-extrusion type clamping-pressing straight-through reducing joint

Technical Field

The utility model relates to a refrigeration pipeline technical field specifically is a smooth crowded formula card presses straight reducing to connect.

Background

The traditional welding method is complex in process and also requires technical workers to hold professional welding skill certificates to work, so that the application and popularization of the traditional welding method are limited, meanwhile, steel clamping and pressing pipe fittings are also used as connecting pieces in the market, ① of the products can generate electric corrosion due to the potential difference relation between copper, ② copper has leakage risk due to the fact that coefficients of expansion with heat and contraction with cold are inconsistent with those of other steel, and ③ copper is connected with other steel, so that resources are wasted due to decomposition and treatment in the recycling process, and the traditional welding method is not environment-friendly.

The open flame welding process has complex technical requirements, is easy to corrode and rust, cannot be operated quickly and conveniently, and cannot realize coaxial connection of different pipe diameters.

Based on this, the utility model designs a smooth crowded formula card presses straight reducing to connect to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a smooth crowded formula card is pressed and is led directly to reducing and connect to solve the numerous and diverse technical requirement height of naked light welding process that provides in the above-mentioned background art, easily corroded the rust, can not fast convenient operation, can not realize the coaxial coupling's of different pipe diameters problem.

In order to achieve the above object, the utility model provides a following technical scheme: a sliding extrusion type clamping and pressing straight-through reducing joint comprises a clamping main body, a first nesting, a second nesting, a first sleeve body and a second sleeve body which are made of lead brass HPb60-2, wherein the clamping main body is formed by connecting a coaxial clamping ring, a first clamping cylinder and a second clamping cylinder into a whole, the inner diameters of the first clamping cylinder and the second clamping cylinder are different, the wall thicknesses of the first clamping cylinder and the second clamping cylinder are the same and different, the first nesting and the second nesting are respectively inserted into the corresponding red copper tubes in a clearance fit mode, the first nesting and the second nesting corresponding to the first sleeve body and the second sleeve body are respectively sleeved on the outer walls of the red copper tubes with different outer diameters, the first sleeve body and the second sleeve body are respectively clamped with the corresponding first clamping cylinder and the second clamping cylinder to enable the first clamping cylinder and the second clamping cylinder to deform to enable the corresponding red copper tubes to be abutted and sealed, and the first sleeve body and the second sleeve body slide when the clamping and pressing clamp works, push and extrude the protruding position of corresponding first joint section of thick bamboo and second joint section of thick bamboo, the material is moulding from the inner wall depressed place, and support the red copper pipe inner wall by corresponding first nestification and second nestification, and the unnecessary material after receiving the extrusion directly produces the plastic deformation of shoving to the red copper pipe, makes the sealing connection of two fuses as an organic whole.

Preferably, the inner diameter of the clamp ring is smaller than the inner diameters of the first clamping cylinder and the second clamping cylinder, and the outer diameter of the clamp ring is larger than the outer diameters of the first clamping cylinder and the second clamping cylinder.

Preferably, the wall thickness of a first joint section of thick bamboo and a second joint section of thick bamboo is 0.6-1.0mm, the equal outer wall of middle part of a first joint section of thick bamboo and a second joint section of thick bamboo is outside protruding inner wall sunken, the external diameter of the free end to the protruding department in middle part of a first joint section of thick bamboo and a second joint section of thick bamboo is less than the external diameter that corresponds protruding department in middle part to calliper ring on a first joint section of thick bamboo and a second joint section of thick bamboo, the free end of a first joint section of thick bamboo and a second joint section of thick bamboo all is provided with the chamfer.

Preferably, the inner diameters of the first sleeve body and the second sleeve body are in interference fit with the outer diameters of the free ends of the first clamping cylinder and the second clamping cylinder and the protruding part of the outer wall of the middle part respectively, the wall thicknesses of the first sleeve body and the second sleeve body are 2.4-2.7mm, the inner diameters of one ends, close to the clamp ring, of the first sleeve body and one ends, close to the clamp ring, of the second sleeve body are outwards inclined, and the inner diameters of the other ends of the first sleeve body and the second sleeve body are inwards inclined.

Preferably, the length difference between the first clamping cylinder and the second clamping cylinder and the length difference between the corresponding first sleeve body and the second sleeve body is 1.0-1.4 mm.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an open fire welding is not used, solves the easy rust problem of steel material card pressure pipe fitting, makes the installation of the refrigeration pipe of different pipe diameters convenient fast more, and the brass material is anti potential corrosion, can not rust, and bulk strength is greater than traditional pipe fitting more withstand voltage, uses the copper product circulated, environmental protection more.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a half sectional view of the clamping body;

FIG. 3 is a half sectional view of the first and second clamping cylinders of the present invention;

FIG. 4 is a half sectional view of the first sleeve and the second sleeve of the present invention;

fig. 5 is a schematic diagram of the clamping main body of the present invention after being clamped with the first sleeve or the second sleeve.

In the drawings, the components represented by the respective reference numerals are listed below:

1. clamping the main body; 11. a clamp ring; 12. a first clamping cylinder; 13. a second clamping cylinder; 2. a first nesting; 3. a second nesting; 4. a first sleeve body; 5. a second sleeve body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

One specific application of this embodiment is:

1. the brass pipe fitting is turned in a numerical control mode to form a thin-wall structure with a certain geometric shape, and the brass pipe fitting and the red copper pipe fitting are connected in a sealed and fastened mode through mutual extrusion between the brass pipe fitting and a special sliding and extruding caliper.

2. The whole connection process is as follows:

(1) confirming whether the first sleeve body 4 and the second sleeve body 5 are sleeved on the corresponding first clamping cylinder 12 and the second clamping cylinder 13 or not, and performing subsequent steps after no error occurs;

(2) firstly, scraping burrs at the inner end opening of a connected red copper pipe by using a scraper, and polishing the length of an excircle by using wire drawing cloth for visual inspection;

(3) the first nesting 2 and the second nesting 3 are respectively inserted into the corresponding connected copper tube holes, and bosses at one ends of the first nesting 2 and the second nesting 3 prevent the first nesting 2 and the second nesting 3 from being completely inserted into the corresponding connected copper tube holes;

(4) two groups of connected copper tubes with different diameters or equal diameters are respectively inserted into corresponding inner holes of a first clamping cylinder 12 and a second clamping cylinder 13 in a corresponding clamping main body 1, the inserted copper tubes are limited because the inner diameter of a clamping ring 11 is smaller than the inner diameters of the first clamping cylinder 12 and the second clamping cylinder 13, the two groups of copper tubes are in interference fit with the corresponding inner holes of the first clamping cylinder 12 and the second clamping cylinder 13, and marks are drawn at the joint of the outer wall of the copper tube 5 and the free ends of the first clamping cylinder 12 and the second clamping cylinder 13 to confirm the gluing area;

(5) coating sealant on the outer walls of the two groups of red copper tubes;

(6) after the glue is coated, the copper tubes are rotated by 180 degrees, and the two groups of connected copper tubes together with the corresponding first nesting 2 and second nesting 3 are inserted into corresponding inner holes of a first clamping cylinder 12 and a second clamping cylinder 13 in the clamping main body 1;

(7) the first sleeve body 4 and the second sleeve body 5 which are in sleeve joint with the outer walls of the two groups of copper tubes are sleeved on the first clamping cylinder 12 and the second clamping cylinder 13 which are in sleeve joint with the corresponding outer walls of the clamping main body 1, and because the inner diameters of the first sleeve body 4 and the second sleeve body 5 and the corresponding first clamping cylinder 12 and the outer diameter of the convex part of the outer wall from the free end of the second clamping cylinder 13 to the middle part are equal to the outer diameter of the convex part of the outer wall, the first sleeve body 4 and the second sleeve body 5 are respectively blocked by the convex parts of the outer walls at the middle parts of the first clamping cylinder 12 and the second clamping cylinder 13.

(8) The special sliding and extruding type clamping and pressing pliers are aligned to a sunken part in the middle of a clamping ring 11 in a clamping main body 1 and the side walls of the tail ends of a first sleeve body 4 and a second sleeve body 5 far away from the clamping ring 11, the clamping and pressing pliers are adjusted to be proper in width, the calipers are started to seal and clamp the four parts, the arrow directions in the drawing are clamping and pressing directions, the surfaces perpendicular to the arrows are clamping and pressing end surfaces, the first sleeve body 4 and the second sleeve body 5 respectively extrude the middle bulges of a first clamping cylinder 12 and a second clamping cylinder 13 corresponding to the first sleeve body 4 and the second sleeve body 5, so that the first sleeve body 4 and the second sleeve body 5 are continuously close to the clamping ring 11, the free ends to the middle bulges of the first clamping cylinder 12 and the second clamping cylinder 13 are extruded and tightly abutted against corresponding red copper 5 to realize fixation, the red copper pipe is softer relative to the materials of the first clamping cylinder 12 and the second clamping cylinder 13 of brass, the red copper pipe is extruded and deformed to be favorable for tightly attaching the clamping cylinders, and realize sealing with sealed glue cooperation, because the internal diameter of the first cover body 4, the second cover body 5 with correspond the first joint section of thick bamboo 12 and the second joint section of thick bamboo 13 middle part on the protruding department to calliper ring 11 external diameter interference fit, and the wall thickness of the cover body 3 is great for the protruding department in the middle part of the first joint section of thick bamboo 12 and the second joint section of thick bamboo 13 to calliper ring 11's thin wall is inwards extruded, realizes the first cover body 4, the second cover body 5 with correspond the first joint section of thick bamboo 12 and the fixed of second joint section of thick bamboo 13.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a straight reducing of crowded formula card pressure connects which characterized in that: including joint main part (1), first nest (2), the second nest (3), the first cover body (4) and the second cover body (5) that the material is lead brass HPb60-2, joint main part (1) is by coaxial joint ring (11), a first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) even an organic whole and constitute, the internal diameter of a first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) is different, the wall thickness of a first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) is the same and the internal diameter is different, first nest (2) and second nest (3) are clearance fit respectively and insert in the red copper pipe that corresponds, first nest (2) and second nest (3) that first cover body (4) and second cover body (5) correspond respectively make a first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) cover on the red copper pipe outer wall of different external diameters, first cover body (4) and second cover body (5) make first joint section of thick bamboo (12) and second joint section of thick bamboo (13) that correspond respectively with a first joint section of thick bamboo (12) and and the second clamping cylinder (13) deforms to enable the corresponding copper tube to be in abutting connection and deform to realize sealing.

2. The slip-extrusion type clamping-pressing straight-through reducing joint as claimed in claim 1, wherein: the inner diameter of the clamp ring (11) is smaller than the inner diameters of the first clamping cylinder (12) and the second clamping cylinder (13), and the outer diameter of the clamp ring (11) is larger than the outer diameters of the first clamping cylinder (12) and the second clamping cylinder (13).

3. The slip-extrusion type clamping-pressing straight-through reducing joint as claimed in claim 1, wherein: the wall thickness of a first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) is 0.6-1.0mm, the equal outer wall of middle part of a first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) is outside protruding inner wall sunken, the external diameter of the free end of a first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) to middle part bellied department is less than the external diameter of corresponding first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) on middle part bellied department to calliper ring (11), the free end of a first joint section of thick bamboo (12) and a second joint section of thick bamboo (13) all is provided with the chamfer.

4. The slip-extrusion type clamping-pressing straight-through reducing joint as claimed in claim 1, wherein: the inner diameters of the first sleeve body (4) and the second sleeve body (5) are respectively in interference fit with the outer diameters of the free ends of the first clamping cylinder (12) and the second clamping cylinder (13) to the protruding part of the outer wall of the middle part, the wall thicknesses of the first sleeve body (4) and the second sleeve body (5) are 2.4-2.7mm, an inclined angle is outwards arranged at one end, close to the clamp ring (11), of the first sleeve body (4) and the second sleeve body (5), and an inclined angle is inwards arranged at the inner diameter of the other end of the first sleeve body (4) and the second sleeve body (5).

5. The slip-extrusion type clamping-pressing straight-through reducing joint as claimed in claim 1, wherein: the length difference between the first clamping cylinder (12) and the second clamping cylinder (13) and the corresponding first sleeve body (4) and second sleeve body (5) is 1.0-1.4 mm.