CN114226576A

CN114226576A - Copper pipe flaring device for air conditioner

Info

Publication number: CN114226576A
Application number: CN202111560909.9A
Authority: CN
Inventors: 洪日军
Original assignee: Jiangsu Kangsheng Pipe Industry Co ltd
Current assignee: Jiangsu Kangsheng Pipe Industry Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-03-25

Abstract

The invention discloses a copper pipe flaring device for an air conditioner, which belongs to the technical field of metal pipe fitting non-cutting processing and comprises a flaring component and a positioning component, wherein the positioning component comprises three supporting rods, the three supporting rods are mutually hinged, each hinged point is hinged with a fixing ring, each fixing ring comprises a ring body and a fixing frame fixedly connected with the ring body, and at least one supporting rod is a telescopic rod; the flaring assembly comprises a flaring cone and a plurality of pull arms, and the pull arms can be matched with the ring body and can position the flaring cone to the center of the ring body. The positioning assembly can be used for fixing a straight copper pipe and a copper pipe with a certain bending degree by changing the positions of the three supporting rods and adjusting the angles of the three fixing rings, so that the problem that the bent copper pipe cannot be clamped by the traditional flaring device is solved, meanwhile, the flaring cone is conveniently positioned at the fracture of the copper pipe by arranging the pull arm matched with the ring sleeve, and the problem that the flaring cone is inconvenient to align to the fracture of the copper pipe by the traditional flaring device is solved.

Description

Copper pipe flaring device for air conditioner

Technical Field

The invention relates to a copper pipe flaring device for an air conditioner, and belongs to the technical field of metal pipe fitting non-cutting machining.

Background

When the existing copper pipe for the air conditioner is connected, a tool named as a flaring device is generally used for flaring a fracture of the copper pipe. The flaring ware includes anchor clamps and bears the summit ware, be provided with the double-layered groove of the different bore of a plurality of on the anchor clamps, bear the summit ware include one can detain on anchor clamps U type frame and with U type frame screw-thread fit's screw rod, the one end of screw rod is fixed with the tip cone, the other end of screw rod is equipped with the spanner, earlier put copper pipe in pressing from both sides the groove during use, then tighten anchor clamps, detain U type frame on anchor clamps, then rotatory spanner for the tip cone withstands copper pipe fracture and enlarges the fracture size gradually, finally form the horn mouth. However, the existing flaring device has a plurality of defects, the rotation center of the tip cone is difficult to accurately position with the axis of the copper pipe, so that the machined bell mouth is often inclined and belongs to an unqualified bell mouth, the copper pipe needs to be cut again and then flaring is carried out again, and time is wasted; because the clamping groove is a cylindrical groove, the clamping groove can only be used for clamping straight copper pipe parts, but cannot be used for clamping arc-shaped copper pipes, and therefore the clamping groove cannot be used for flaring of the arc-shaped copper pipes.

Disclosure of Invention

The invention provides a copper pipe flaring device for an air conditioner, which aims to solve the problems in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions.

A copper pipe flaring device for an air conditioner comprises a flaring component and a positioning component, wherein the positioning component comprises three supporting rods, the three supporting rods are hinged with each other, each hinged point is hinged with a fixing ring, each fixing ring comprises a ring body and a fixing frame fixedly connected with the ring body, a sliding sleeve is movably sleeved on each supporting rod, one side of each fixing frame is hinged with an adjacent sliding sleeve through a connecting rod, a fixing device capable of positioning and fixing a copper pipe to the center of the ring body is arranged on the ring body, and at least one supporting rod is a telescopic rod; the flaring assembly comprises a flaring cone and a plurality of pull arms, and the pull arms can be matched with the ring body and can position the flaring cone to the center of the ring body.

Preferably, the fixing device comprises a plurality of through grooves radially distributed on the ring body, a sliding block is slidably mounted in each through groove, the ring body is movably sleeved with the ring sleeve, the ring sleeve is provided with a limiting slide rail in sliding fit with the sliding block, and when the ring sleeve rotates relative to the ring body, the limiting slide rail can drive the sliding block to move in the through groove; a bracket is arranged on the sliding block, and a main fixing ball is arranged at one end of the bracket, which is far away from the sliding block; the fixed frame is provided with an adjusting device for driving the ring sleeve to rotate.

Preferably, supports are symmetrically arranged on two sides of the support, guide rods are movably inserted into the supports, auxiliary fixing balls are arranged at one ends, far away from the sliding blocks, of the guide rods, and springs are sleeved on the guide rods between the auxiliary fixing balls and the supports.

Preferably, the surfaces of the main fixing ball and the auxiliary fixing ball are both provided with a frosted layer.

Preferably, adjusting device installs the locking screw on the mount including rotating, and threaded sleeve is installed to the last screw thread of locking screw, and one side of threaded sleeve is provided with the gag lever post, and fixedly connected with and gag lever post matched with driving lever on the ring cover, when the threaded sleeve removed along locking screw, the gag lever post can drive the driving lever and remove.

Preferably, one end of the pull arm is matched with the ring sleeve, the other end of the pull arm is fixedly connected with the base plate, one end of the flaring cone is fixedly connected with the flaring screw rod in threaded fit with the base plate, and the pull arm is provided with a ring inlet groove which is convenient for the ring sleeve to extend into the space between the pull arms.

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

1. through setting up three solid fixed ring and three bracing piece, and at least one bracing piece is the telescopic link, a plane can be confirmed to three pin joint that three bracing piece articulated formation each other, the accessible changes the position of three bracing piece and adjusts the angle of three solid fixed ring and makes locating component both can be used for fixed straight copper pipe and can be fixed with the copper pipe of certain degree of bending, thereby the problem of the unable crooked copper pipe of centre gripping of traditional flaring ware has been solved, simultaneously through setting up and ring cover matched with arm-drag, be convenient for let the center of flaring awl position ring body, make things convenient for the flaring awl to fix a position the fracture of copper pipe promptly, the inconvenient problem that makes the flaring awl aim at the copper pipe fracture of traditional flaring ware has been solved.

2. By arranging the fixing device and the adjusting device, the ring sleeve can rotate relative to the ring body by rotating the locking screw rod, so that the limiting slide rail is utilized to drive the slide block to move in the through groove, the main fixing ball moves along the radial direction of the ring body, and the copper pipe is clamped; because the copper pipe is clamped by the spheres which are in point contact with the copper pipe, the clamping formed by the spheres can be adapted to the bent copper pipe, and the clamping and fixing of the bent copper pipe are realized.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a state diagram of the present invention.

Figure 3 is a schematic view of the flaring assembly of the present invention.

FIG. 4 is a schematic structural view of the retaining ring of the present invention.

Fig. 5 is a perspective view of a stent portion of the present invention.

Fig. 6 is a side view of a stent section of the present invention.

Figure 7 is a cross-sectional view of a flaring assembly of the present invention.

In the figure: 1. the device comprises fixing rings 11, ring bodies 111, through grooves 12, ring sleeves 121, limiting slide rails 122, shift levers 13, sliding blocks 131, supports 132, main fixing balls 133, supports 134, guide rods 135, auxiliary fixing balls 136, springs 14, fixing frames 141, locking screws 142, threaded sleeves 143, limiting rods 2, supporting rods 3, telescopic rods 31, rod sleeves 32, core rods 33, bolts 34, sliding sleeves 35, connecting rods 4, flaring assemblies 41, pull arms 42, base plates 43, ring inlet grooves 44, flaring screws 45 and flaring cones.

Detailed Description

The technical solutions in the implementation of the present invention will be made clear and fully described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 7, the flaring device for a copper tube for an air conditioner according to an embodiment of the present invention includes a flaring component 4 and a positioning component, the positioning component includes three support rods 2, the three support rods 2 are hinged to each other, each hinge point is hinged to a fixing ring 1, each fixing ring 1 includes a ring body 11 and a fixing frame 14 fixedly connected to the ring body 11, and as can be seen from fig. 1, the three fixing frames 14 are respectively hinged to three hinge points between the three support rods 2. The sliding sleeve 34 is sleeved on each supporting rod 2 in a movable mode, one side of each fixing frame 14 is hinged to an adjacent sliding sleeve 34 through the connecting rod 35, the fixing frames 14 can drive the sliding sleeves 34 to slide on the supporting rods 2 through the connecting rods 35 when the fixing frames 14 rotate by taking hinged joints as centers, and the sliding sleeves 34 can be fixed on the supporting rods 2 through the bolts 33 when the positions of the fixing frames 14 are adjusted, so that the fixing frames 14 and the supporting rods 2 can be fixed relatively. Be provided with on the ring body 11 and can fix a position the copper pipe to the center of ring body 11 and fixed fixing device, fixing device can be the mechanism of centre gripping material on the similar lathe, fixes a position the centre of gravity of centre gripping at ring body 11 with the copper pipe through many centre gripping arms.

At least one support rod 2 is a telescopic rod 3, so that a triangle formed by mutually hinging the three support rods 2 can be deformed, the triangle can be changed by the telescopic change of one, two or three telescopic rods 3, thus, after the ring body 11 is sleeved on the copper pipe in sequence, the three support rods 2 can adapt to the bending degree of the copper pipe to form a triangle, when the telescopic rod 3 is fixed by the bolt 33 and can not be stretched any more, the three support rods 2 form a fixed triangle matched with the bending degree of the copper pipe, as long as the bending degree of the copper pipe is not a standard circular arc, the triangle can only be matched with the radian of the current position of the copper pipe, because three points define a plane, the triangle has stability, and three fixed rings 1 and three supporting rods 2 form a firm frame which is fixed on the copper pipe.

The flaring component 4 comprises a flaring cone 45 and a plurality of pull arms 41, one end of each pull arm 41 is matched with the ring sleeve 12, a cylindrical space which is just matched with the ring sleeve 12 is formed on the inner side of each pull arm 41, a base plate 42 is fixedly connected to the other end of each pull arm 41, a flaring screw 44 which is in threaded fit with the base plate 42 is fixedly connected to one end of each flaring cone 45, an annular inlet groove 43 which is convenient for the ring sleeve 12 to extend into the plurality of pull arms 41 is formed in the pull arms 41, the ring sleeve 12 can conveniently extend into the cylindrical space formed by the plurality of pull arms 41 from the annular inlet groove 43, then the ring sleeve 12 is pushed to one side of each pull arm 41 far away from the base plate 42 to be clamped, at the moment, the flaring cone 45 just aims at the center of the ring body 11, namely the flaring cone 45 just aims at the fracture of the copper pipe. The copper pipe is firmly fixed through the fixing device, the three fixing rings 1 and the three supporting rods 2, then the pull arm 41 is matched with the ring body 11, and the flaring cone 45 is used for flaring the fixed copper pipe fracture.

Preferably, the fixing device includes a plurality of through grooves 111 radially distributed on the ring body 11, preferably three or more through grooves 111, a slider 13 is slidably mounted in each through groove 111, a ring sleeve 12 is movably sleeved on the ring body 11, a limit slide rail 121 slidably matched with the slider 13 is arranged on the ring sleeve 12, and when the ring sleeve 12 rotates relative to the ring body 11, the limit slide rail 121 can drive the slider 13 to move in the through groove 111; a bracket 131 is arranged on the sliding block 13, and a main fixing ball 132 is arranged at one end of the bracket 131 far away from the sliding block 13; the fixing frame 14 is provided with an adjusting device for driving the ring sleeve 12 to rotate. When the adjusting device is used for rotating the ring sleeve 12, the limiting slide rail 121 can drive the slide block 13 to move in the through groove 111, so that the position of the support 131 is changed, the support 131 can move along the radial direction of the ring body 11, when the supports 131 are matched, the main fixing balls 132 can position the copper pipe to the center of the ring body 11, and when the adjusting device fixes the position of the ring sleeve 1, the copper pipe can be clamped.

Preferably, the supports 133 are symmetrically arranged on two sides of the bracket 131, the guide rods 134 are movably inserted into the supports 133, the auxiliary fixing balls 135 are arranged at one ends of the guide rods 134 far away from the slider 13, and the springs 136 are sleeved on the guide rods 134 between the auxiliary fixing balls 135 and the supports 133. As shown in fig. 5 and 6, the auxiliary fixing balls 135 are symmetrically disposed on two sides of the main fixing ball 132, so that when the copper pipe is fixed by the ring body 11, since the main fixing balls 132 surround the copper pipe, the cross section of the copper pipe has the smallest area, when the copper pipe is tightly clamped by the main fixing balls 132, the ring body 11 naturally coincides with the cross section of the copper pipe, at this time, the axial line of the ring body 11 coincides with the central line of the cross section of the copper pipe, and the auxiliary fixing balls 135 on two sides can play a role in auxiliary positioning.

Preferably, the surfaces of the main fixing ball 132 and the auxiliary fixing ball 135 are provided with a frosted layer. When the surfaces of the main fixing ball 132 and the auxiliary fixing ball 135 are both provided with a frosted layer, the fixing degree between the fixing ring 1 and the copper pipe can be enhanced, so that the copper pipe is not easy to slide relatively with the main fixing ball 132 and the auxiliary fixing ball 135.

Preferably, the adjusting device includes a locking screw 141 rotatably mounted on the fixing frame 14, a threaded sleeve 142 is threadedly mounted on the locking screw 141, a limiting rod 143 is disposed on one side of the threaded sleeve 142, and a shift lever 122 engaged with the limiting rod 143 is fixedly connected to the ring sleeve 12, so that when the threaded sleeve 142 moves along the locking screw 141, the shift lever 122 can be driven by the limiting rod 143 to move. When the locking screw 141 is rotated, the screw sleeve 142 cannot rotate because the limiting rod 143 is engaged with the ring sleeve 12 and the driving lever 122, and thus the rotation of the locking screw 141 can drive the screw sleeve 142 to move on the locking screw 141. When the threaded sleeve 142 moves on the locking screw 141, the limiting rod 143 can carry the shift lever 122 to move, and when the shift lever 122 moves, the shift lever 122 can drive the ring sleeve 12 to rotate relative to the ring body 11, so as to drive the main fixing ball 132 to clamp or release the copper pipe.

Preferably, the telescopic rod 3 comprises a rod sleeve 31 and a core rod 32 in plug-in fit with the rod sleeve 31. The sliding sleeve 34 is in sliding engagement with the rod sleeve 31.

When in use: the bolts 33 are first in an unthreaded state, i.e. the telescopic rod 3 can be extended and retracted, and the fixing frame 14 can also be rotated. The three ring bodies 11 are sequentially sleeved on the copper pipe, and then the locking screw rods 141 on the three fixing frames 14 are sequentially screwed, so that the copper pipe is clamped by the multiple groups of main fixing balls 132 on each ring body 11, in the process, the auxiliary fixing balls 135 also play a role in auxiliary clamping, and the auxiliary fixing balls 135 also play a role in promoting the ring bodies 11 to be positioned on the cross section of the copper pipe. As shown in FIG. 2, after the three ring bodies 11 are fixed on the copper tube, the three support rods 2 naturally form a certain included angle, and at the moment, the fixing frame matched with the bending radian of the copper tube can be formed only by screwing and fixing each nut. When the pull arm 41 and the flaring cone 45 are used for flaring the copper pipe, the ring body 11 cannot slide on the copper pipe, so that normal flaring is guaranteed.

The flaring device can not only flare straight copper pipes, but also flare the copper pipes with certain bending radian. When straight copper pipes are flared, the flaring device can be adjusted to the structure shown in fig. 1, and the central lines of the three ring bodies 11 are overlapped. When the flaring is carried out on the copper pipe with a certain bending radian, the flaring device can be adjusted to be in the structure shown in fig. 2, the flaring device is suitable for the bending radian of the copper pipe, and the bent copper pipe is clamped. After the three ring bodies 11 are all fixed on the copper pipe, the pull arm 41 can be buckled on the ring sleeve 12, the ring sleeve 12 enters the pull arm 41 from the ring inlet groove 43, the quick and accurate positioning of the flaring cone 45 and the fracture of the copper pipe is realized, and then the flaring screw 44 is rotated to enable the flaring cone 45 to flare the copper pipe.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. The copper pipe flaring device for the air conditioner is characterized by comprising a flaring component (4) and a positioning component, wherein the positioning component comprises three supporting rods (2), the three supporting rods (2) are hinged with each other, each hinged point is hinged with a fixing ring (1), each fixing ring (1) comprises a ring body (11) and a fixing frame (14) fixedly connected with the ring body (11), each supporting rod (2) is movably sleeved with a sliding sleeve (34), one side of each fixing frame (14) is hinged with an adjacent sliding sleeve (34) through a connecting rod (35), a fixing device capable of positioning and fixing a copper pipe to the center of the ring body (11) is arranged on the ring body (11), and at least one supporting rod (2) is a telescopic rod (3); the flaring assembly (4) comprises a flaring cone (45) and a plurality of pull arms (41), wherein the pull arms (41) can be matched with the ring body (11) and can be used for positioning the flaring cone (45) to the center of the ring body (11).

2. The flaring device for copper pipes for air conditioners according to claim 1, wherein the fixing device comprises a plurality of through grooves (111) radially distributed on the ring body (11), each through groove (111) is internally provided with a sliding block (13) in a sliding manner, the ring body (11) is movably sleeved with a ring sleeve (12), the ring sleeve (12) is provided with a limit slide rail (121) in sliding fit with the sliding block (13), and when the ring sleeve (12) rotates relative to the ring body (11), the limit slide rail (121) can drive the sliding block (13) to move in the through groove (111); a bracket (131) is arranged on the sliding block (13), and a main fixing ball (132) is arranged at one end, far away from the sliding block (13), of the bracket (131); the fixed frame (14) is provided with an adjusting device for driving the ring sleeve (12) to rotate.

3. The flaring device for the copper pipe for the air conditioner according to claim 2, characterized in that two sides of the bracket (131) are symmetrically provided with a support (133), a guide rod (134) is movably inserted into the support (133), one end of the guide rod (134) far away from the sliding block (13) is provided with an auxiliary fixing ball (135), and a spring (136) is sleeved on the guide rod (134) between the auxiliary fixing ball (135) and the support (133).

4. The flaring device for copper pipes for air conditioners according to claim 3, characterized in that the surfaces of said main fixing ball (132) and said auxiliary fixing ball (135) are provided with a frosted layer.

5. The flaring device for the copper pipe for the air conditioner according to claim 2, characterized in that the adjusting device comprises a locking screw rod (141) rotatably mounted on the fixing frame (14), a threaded sleeve (142) is threadedly mounted on the locking screw rod (141), a limiting rod (143) is arranged on one side of the threaded sleeve (142), a shift lever (122) matched with the limiting rod (143) is fixedly connected to the ring sleeve (12), and when the threaded sleeve (142)) moves along the locking screw rod (141), the limiting rod (143) can drive the shift lever (122) to move.

6. The flaring device for copper pipes for air conditioners as claimed in claim 1, wherein one end of said pulling arm (41) is fitted with a ring sleeve (12), the other end of said pulling arm (41) is fixedly connected with a base plate (42), one end of said flaring cone (45) is fixedly connected with a flaring screw (44) which is in threaded fit with said base plate (42), and said pulling arm (41) is provided with an annular feeding groove (43) for facilitating the ring sleeve (12) to extend into between a plurality of pulling arms (41).