CN210475268U

CN210475268U - Convenient fixed enlarger

Info

Publication number: CN210475268U
Application number: CN201921079423.1U
Authority: CN
Inventors: 王炜
Original assignee: Wujiang Dongxiao Tool Co ltd
Current assignee: Wujiang Dongxiao Tool Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-05-08
Anticipated expiration: 2029-07-11

Abstract

The utility model discloses a convenient fixed enlarger, which relates to the technical field of pipeline flaring tools, and the technical proposal is characterized in that the enlarger comprises a conical head, a clamping plate and a positioning seat used for matching and positioning with the clamping plate, wherein the positioning seat is provided with an actuating device used for actuating the conical head to move along the direction vertical to the clamping plate, the clamping plate comprises two parallel sliding rods and a connecting rod connected between the ends of the sliding rods, and the connecting rod and the sliding rods surround into a rectangular frame shape; a plurality of sliding blocks are arranged between the two sliding rods in a sliding manner, and sliding grooves for the sliding rods to penetrate into are formed in the two ends of each sliding block; the side surfaces of the sliding blocks facing to the adjacent sliding blocks are provided with semicircular notches, and the semicircular notches on the two adjacent sliding blocks can be spliced to form a circular hole for fixing a circular tube to be flared; and the clamping plate is also provided with a driving device for driving the sliding block to slide along the length direction of the sliding rod. The utility model has the advantages of make things convenient for the centre gripping pipeline.

Description

Convenient fixed enlarger

Technical Field

The utility model relates to a pipeline flaring instrument, more specifically say that it relates to a convenient fixed enlarger.

Background

In order to facilitate the butt joint between two metal pipes with the same diameter, the end opening of one metal pipe is expanded into a bell mouth shape, and the bell mouth is pressed by a threaded pipe joint to realize the pipe butt joint. In this process, a large amount of time is required in the process of manufacturing the bell-mouth of the metal pipe.

Therefore, the chinese patent with the granted publication number CN205414182U discloses an air-conditioning copper pipe expander, which comprises a positioning seat, a clamping plate and a stud, wherein the positioning seat is of a C-shape with a downward opening, a nut seat is arranged at the back of the positioning seat, the nut seat is provided with the stud adapted to the nut seat, one end of the positioning seat of the stud is provided with a conical head, the other end of the positioning seat of the stud is provided with a handle, the clamping plate comprises a clamping plate a and a clamping plate B, the clamping plate a and the clamping plate B are provided with a plurality of semicircular holes with different sizes, and the semicircular holes are provided with chamfers; a side arm of the positioning seat is provided with a pressing threaded rod; a rocking handle is arranged on the pressing threaded rod; the stud is galvanized.

The air conditioner copper pipe reamer disclosed by the technical scheme is mainly used for reaming the pipe orifice of a copper pipe. When the pipe expanding device is used, the copper pipe is fixed between the clamping plates, then the clamping plates are clamped in the positioning seat, and then pipe expanding is carried out by utilizing the conical heads on the studs. However, after the flaring of one metal pipe is completed, the clamping plate and the positioning seat need to be separated to clamp the other metal pipe, which brings inconvenience to the pipe expanding operation and increases the time required by the clamping operation when flaring a plurality of metal pipes. Thus, further improvements are needed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a convenient fixed enlarger, its advantage that has convenient centre gripping pipeline.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a reamer convenient to fix comprises a conical head, a clamping plate and a positioning seat, wherein the positioning seat is used for being matched and positioned with the clamping plate, an actuating device used for actuating the conical head to move in a direction perpendicular to the clamping plate is arranged on the positioning seat, the clamping plate comprises two parallel sliding rods and a connecting rod connected between the end parts of the sliding rods, and the connecting rod and the sliding rods are encircled to form a rectangular frame; a plurality of sliding blocks are arranged between the two sliding rods in a sliding manner, and sliding grooves for the sliding rods to penetrate into are formed in the two ends of each sliding block; the side surfaces of the sliding blocks facing to the adjacent sliding blocks are provided with semicircular notches, and the semicircular notches on the two adjacent sliding blocks can be spliced to form a circular hole for fixing a circular tube to be flared; and the clamping plate is also provided with a driving device for driving the sliding block to slide along the length direction of the sliding rod.

By adopting the technical scheme, the sliding blocks can separate the opposite semicircular gaps on the adjacent sliding blocks, and the pipeline to be flared can be conveniently inserted. Then, the driving device drives the sliding blocks to slide along the length direction of the sliding rods, so that the sliding blocks are mutually abutted, and the pipeline is clamped and fixed. And then the conical head is aligned to the opening of the pipeline by matching with the positioning seat for positioning. And then the driving device drives the conical head to move to expand the opening of the pipeline fixed on the clamping plate. After the flaring of one pipeline is finished, the clamping plate and the positioning seat do not need to be separated, the sliding block is loosened by the aid of the driving device, the pipeline with the flared end can be taken out or a new pipeline can be installed, and the operation is convenient and rapid.

Furthermore, the cross-sectional shape of the slide bar is rectangular, and the shape of the sliding groove is adapted to the slide bar.

Through adopting above-mentioned technical scheme, the slider slides more stably, and is more firm when locating the round hole of pipeline centre gripping between adjacent slider.

Further, the driving device comprises a pressing screw rod inserted in the connecting rod along the length direction of the clamping plate.

Through adopting above-mentioned technical scheme, rotatory tight screw rod that supports can make and support the tight screw rod and remove along self length direction to support tightly or loosen the slider, convenient to use is difficult not hard up when just making the slider press from both sides tight pipeline.

Furthermore, a rotating handle perpendicular to the axial direction of the tightening screw rod is arranged at one end, far away from the sliding block, of the tightening screw rod.

The rotating handle is convenient to hold and apply force when the screw is tightly supported in a rotating mode.

Furthermore, the positioning seat is U-shaped, and the relative both sides wall of positioning seat opening part all opens the draw-in groove that supplies splint card to go into, the width more than or equal to the thickness of slider of draw-in groove.

Through adopting above-mentioned technical scheme, insert the draw-in groove with splint during the use, the pipeline opening that the adjustment position was fixed in splint to the conical head alignment can. The width of the clamping groove is larger than the thickness of the sliding block pair, so that the clamping plate is more convenient and labor-saving when being inserted into the clamping groove.

Further, the actuating device comprises an adjusting screw rod arranged along the direction of the symmetry axis of the positioning seat, and the conical head is arranged at one end of the adjusting screw rod close to the clamping plate.

Through adopting above-mentioned technical scheme, rotate adjusting screw and can order about the conical head rotation, the conical head can accomplish the expansion to the pipeline opening fast along adjusting screw's axial displacement simultaneously.

Further, the axis of the conical head is offset from the axis of the adjusting screw or coincides with the axis of the adjusting screw.

By adopting the technical scheme, the axis of the conical head is coincided with or deviates from the axis of the adjusting screw rod, and the requirement for expanding the opening of the pipeline can be met.

Furthermore, one end of the adjusting screw rod, which is far away from the conical head, is provided with an adjusting handle.

The adjusting handle is convenient to hold and facilitates force application when the adjusting screw rod is rotated.

To sum up, the utility model discloses following beneficial effect has:

1. the clamping plate comprises a plurality of sliding blocks, and the circular holes are formed by splicing semicircular notches on the adjacent sliding blocks, so that the clamping plate does not need to be separated from the positioning seat when the pipeline is disassembled and assembled, and the convenience of pipeline flaring operation is improved;

2. the conical head can be arranged coaxially with the adjusting screw rod or obliquely deviating from the axis of the adjusting screw rod, so that different pipeline flaring requirements can be met;

3. the tail end of the adjusting screw rod is provided with an adjusting handle, the tail end of the abutting screw rod is provided with a rotating handle, and the adjusting screw rod and the rotating handle both have the functions of being convenient to hold and easy to apply force during rotating operation.

Drawings

Fig. 1 is a schematic structural view of a reamer which is convenient to fix in embodiment 1;

fig. 2 is a sectional view of a reamer in example 1 which is convenient to fix;

fig. 3 is a sectional view of a reamer in example 2 which is convenient to fix.

In the figure: 1. a conical head; 2. positioning seats; 21. a card slot; 3. adjusting the screw rod; 31. an adjusting handle; 4. a slide bar; 5. a connecting rod; 6. a slider; 61. a chute; 62. a semicircular notch; 7. a circular hole; 8. tightly abutting against the screw rod; 81. the handle is rotated.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

a conveniently fixed reamer is shown in figure 1 and comprises a clamping plate, a conical head 1 and a positioning seat 2. The clamping plate comprises a sliding rod 4, a connecting rod 5, a plurality of sliding blocks 6 and a driving device for driving the sliding blocks 6 to move. The cross section of the slide bar 4 is rectangular and is provided with two parallel slide bars. The two connecting rods 5 are respectively connected between the end parts of the two sliding rods 4 and form a rectangular frame shape by surrounding with the sliding rods 4. The sliding blocks 6 are all arranged between the sliding rods 4, and the length direction of the sliding blocks is consistent with that of the connecting rods 5.

Referring to fig. 1 and 2, sliding grooves 61 are formed at two ends of each sliding block 6 in the length direction, and the sliding rods 4 are arranged through the sliding grooves 61, so that each sliding block 6 can slide between the two sliding rods 4 in the length direction of the sliding rod 4.

Referring to fig. 1, the side surface of the sliding block 6 facing to the adjacent sliding block 6 is provided with a semicircular notch 62, and the semicircular notches 62 on the two adjacent sliding blocks 6 can be spliced to form a circular hole 7. When the pipeline is flared, the end part of the pipeline is clamped and embedded in the semicircular notch 62 of one sliding block 6, then the sliding blocks 6 are driven to be close to each other by means of a driving device, and the pipeline is clamped and fastened by the two sliding blocks 6. In order to facilitate the close flaring of pipelines with different pipe diameters, the circular holes 7 on the clamping plates are provided with a plurality of circular holes which are linearly arranged along the length direction of the clamping plates, and the diameters of the circular holes are sequentially increased.

Referring to fig. 1, the driving device includes a tightening screw 8 penetrating through the connecting rod 5 along the length direction of the sliding rod 4, and a rotating handle 81 is disposed at the end of the tightening screw 8 far away from the sliding block 6. The length direction of the rotating handle 81 is perpendicular to the axial direction of the abutting screw 8. The tightening screw 8 can be easily rotated by the rotating handle 81, and the end of the tightening screw 8 far away from the rotating handle 81 is used for pushing the sliding block 6 to move, so that the sliding blocks 6 are tightly pressed against each other, and the pipeline is clamped and fastened.

Referring to fig. 1 and 2, the positioning seat 2 is U-shaped, and the clamping plate is clamped at the opening of the positioning seat 2. The two opposite side walls of the opening of the positioning seat 2 are provided with clamping grooves 21 for clamping the clamping plates. The width of the clamping groove 21 is larger than or equal to the thickness of the sliding block 6, and the width of the clamping groove 21 is slightly larger than that of the sliding block 6 in the embodiment, so that the clamping plate can be inserted into the clamping groove 21 more conveniently.

Referring to fig. 1 and 2, an adjusting screw 3 is arranged on the positioning seat 2 along the direction of the symmetry axis of the positioning seat 2, a conical head 1 is arranged at one end of the adjusting screw 3 facing the slider 6, and the axial directions of the conical head 1 and the adjusting screw 3 are consistent. An adjusting handle 31 is arranged at one end of the adjusting screw rod 3 far away from the conical head 1 along the direction vertical to the axis of the adjusting screw rod 3. The adjustment handle 31 is rotated to move the conical head 1 along the axial direction of the adjustment screw 3 while rotating, so as to expand the pipe fixed below the conical head 1.

The working principle is as follows:

the steps of using the fixed reamer of the present embodiment are as follows,

1. according to different pipe diameters of the pipelines, selecting a circular hole 7 with a proper size on a clamping plate, and clamping and embedding the end part of the pipeline at a semicircular notch 62 of one sliding block 6;

2. the abutting screw 8 is rotated by the rotating handle 81, so that the abutting screw 8 pushes the sliding block 6 to slide along the sliding rod 4 and abut against each other, and the pipeline is clamped;

3. inserting the clamping plate between the two clamping grooves 21 of the positioning seat 2, and moving the clamping plate to the opening of the pipeline to align with the conical head 1;

4. rotating the adjusting handle 31 to enable the adjusting screw 3 to drive the conical head 1 to move so as to expand the opening of the pipeline;

5. after the flaring is completed, the rotating handle 81 is rotated to abut against the screw rod 8 tightly, so that the pipeline after the flaring is completed can be taken out by loosening the pipeline by the sliding block 6, a new pipeline can be installed, and the positioning seat 2 does not need to be separated from the clamping plate.

Example 2:

referring to fig. 3, based on embodiment 1, this embodiment differs from embodiment 1 in that: the axis of the conical head 1 is offset from the axis of the adjusting screw 3.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

Claims

1. The utility model provides a convenient fixed enlarger, includes conical head (1), splint and is used for positioning seat (2) with splint cooperation location, be provided with on positioning seat (2) and be used for ordering about conical head (1) along the order about device that perpendicular to splint direction removed, its characterized in that: the clamping plate comprises two parallel sliding rods (4) and a connecting rod (5) connected between the end parts of the sliding rods (4), and the connecting rod (5) and the sliding rods (4) surround to form a rectangular frame; a plurality of sliding blocks (6) are arranged between the two sliding rods (4) in a sliding manner, and sliding grooves (61) for the sliding rods (4) to penetrate are formed in the two ends of each sliding block (6); the side surfaces of the sliding blocks (6) facing to the adjacent sliding blocks (6) are provided with semicircular notches (62), and the semicircular notches (62) on the two adjacent sliding blocks (6) can be spliced to form a circular hole (7) for fixing a circular pipe to be flared; the clamping plate is also provided with a driving device for driving the sliding block (6) to slide along the length direction of the sliding rod (4).

2. The reamer facilitating fixation as recited in claim 1, wherein: the cross section of the sliding rod (4) is rectangular, and the shape of the sliding groove (61) is matched with that of the sliding rod (4).

3. The reamer facilitating fixation as recited in claim 1, wherein: the driving device comprises a tightly-abutting screw rod (8) inserted in the connecting rod (5) along the length direction of the clamping plate.

4. A conveniently fixed underreamer of claim 3 wherein: one end of the tightening screw rod (8) far away from the sliding block (6) is provided with a rotating handle (81) which is vertical to the axial direction of the tightening screw rod (8).

5. The reamer facilitating fixation as recited in claim 1, wherein: the positioning seat (2) is U-shaped, clamping grooves (21) for clamping the clamping plates are formed in two opposite side walls of the opening, and the width of each clamping groove (21) is larger than or equal to the thickness of each sliding block (6).

6. The reamer facilitating fixation as recited in claim 5, wherein: the actuating device comprises an adjusting screw rod (3) arranged along the symmetrical axis direction of the positioning seat (2), and the conical head (1) is arranged at one end, close to the clamping plate, of the adjusting screw rod (3).

7. The reamer facilitating fixation as recited in claim 6, wherein: the axis of the conical head (1) deviates from the axis of the adjusting screw rod (3) or coincides with the axis of the adjusting screw rod (3).

8. The reamer facilitating fixation as recited in claim 6, wherein: and an adjusting handle (31) is arranged at one end of the adjusting screw rod (3) far away from the conical head (1).