CN220532792U

CN220532792U - Pipe expander with positioning and pipe blocking functions

Info

Publication number: CN220532792U
Application number: CN202322153142.9U
Authority: CN
Inventors: 王德胜; 王纵; 王横
Original assignee: Jinhua Weike Industrial & Trading Co ltd
Current assignee: Jinhua Weike Industrial & Trading Co ltd
Priority date: 2023-08-10
Filing date: 2023-08-10
Publication date: 2024-02-27
Anticipated expiration: 2033-08-10

Abstract

The technical scheme belongs to the technical field of pipe expanders, and particularly relates to a pipe expander with a pipe positioning and blocking function, which comprises a pipe expander main body, wherein a clamping part is concavely formed at the lower end of the pipe expander main body and is used for performing pipe expanding operation on a pipe fitting to be expanded; the clamping die is movably arranged in the clamping part and used for clamping the pipe fitting to be expanded; the clamping part is provided with a locator which is used for controlling the depth of the pipe fitting to be expanded into the clamping die; the distance between the lower end face of the locator and the clamping die is smaller than or equal to the distance between the upper edge of the clamping portion and the clamping die, and the locator at least comprises: the two ends of the mounting plate are mounted on the expander main body through screws; and the positioning plate is arranged on the mounting plate in a protruding manner and is arranged above the clamping die.

Description

Pipe expander with positioning and pipe blocking functions

Technical Field

The technical scheme relates to the technical field of pipe expanders, in particular to a pipe expander with a pipe positioning and blocking function.

Background

The expander is mainly used for manufacturing and maintaining containers, expanding the inner diameter and the outer diameter of the tubes, tightly jointing the contact parts of the tubes and tube plates, ensuring that the joint parts of the tubes do not leak, being widely used for manufacturing and maintaining boilers, heat exchangers, condensers, coolers and other various pressure containers in the industries of petroleum, chemical industry, electric power, metallurgy, shipbuilding, refrigeration and the like, for example, in the air conditioner installation or maintenance process, expanding the refrigerant copper tubes by using the expander, generally, manually rotating a handle by using the expander, and driving a rotating shaft to expand the tubes after a screw driving head is positively rotated to screw into a screw sleeve.

Chinese patent CN217858435U discloses a manual and electric dual-purpose pipe expander, which has the following disadvantages:

1. when the pipe fitting to be expanded is placed in the clamping hole, the depth of the pipe fitting to be expanded inserted into the clamping hole can be controlled only by feel or visual observation, or the pipe fitting to be expanded is inserted until the pipe fitting to be expanded is in conflict with the center assembly, and the caliber of the expanded pipe cannot be accurately controlled no matter which method is used because the position of the center assembly is not fixed, so that the pipe fitting to be expanded is not beneficial to batch pipe expansion.

Disclosure of Invention

The technical scheme aims to provide the pipe expander with the pipe blocking function, and the problem that the caliber of the pipe to be expanded is different after pipe expansion is solved by arranging the positioner on the pipe expander main body.

The technical scheme aims at realizing the following steps:

a pipe expander with a positioning pipe blocking function, comprising: the pipe expander main body is provided with a clamping part in a recessed mode at the lower end and is used for expanding a pipe piece to be expanded; the clamping die is movably arranged in the clamping part and used for clamping the pipe fitting to be expanded; the clamping part is provided with a locator which is used for controlling the depth of the pipe fitting to be expanded into the clamping die; the distance between the lower end face of the locator and the clamping die is smaller than or equal to the distance between the upper edge of the clamping portion and the clamping die.

Preferably, the positioner includes at least: the two ends of the mounting plate are mounted on the expander main body through screws; and the positioning plate is arranged on the mounting plate in a protruding manner and is arranged above the clamping die.

Preferably, the locator and the clamping die are arranged in parallel.

Preferably, the positioner is integrally connected to the expander body.

Preferably, the pipe expanding main body at least includes: a portal frame; the eccentric mechanism is arranged in the pipe expanding cavity of the portal frame and is used for expanding the pipe fitting to be expanded; a driving member for controlling circumferential rotation and up-and-down movement of the eccentric mechanism; the clutch mechanism is used for connecting the driving piece and the eccentric mechanism and also used for blocking up-and-down movement of the eccentric mechanism; wherein the clutch mechanism at least comprises: the clutch seat is provided with a connecting groove for connecting a driving piece at the upper end; the feeding seat is in threaded connection with the inside of the expanding cavity and is used for transmitting power to the eccentric mechanism; the upper end of the lock pin is inserted into a first insertion groove formed in the lower end of the clutch seat, the lower end of the lock pin is inserted into a second insertion groove formed in the upper end of the feeding seat, and the lower end of the lock pin is provided with a clutch inclined plane; the clutch spring is arranged in a mounting hole formed in the lock pin, the upper end of the clutch spring is abutted against the bottom of the first inserting groove, and the lower end of the clutch spring is abutted against the lock pin, so that the lock pin always has a downward movement trend; when the pipe expansion is completed and the driving piece continues to rotate forwards, the lock pin is separated from the second splicing groove through the clutch inclined surface, so that the clutch seat and the feeding seat are separated; when the driving piece rotates reversely, the lower end of the lock pin is abutted against the second inserting groove, so that the clutch seat and the feeding seat can retract synchronously.

Preferably, the eccentric mechanism has at least: the upper end of the rotating shaft is provided with a fixed pin which is clamped in the clutch seat and is used for realizing synchronous rotation of the rotating shaft and the clutch seat; an eccentric screw head provided at a lower end of the rotation shaft; the power spring is sleeved outside the rotating shaft, the upper end of the power spring is abutted against the feeding seat, and the lower end of the power spring is abutted against the eccentric thread head; the feeding seat moves downwards to squeeze the power spring, so that the eccentric thread head moves downwards.

Compared with the prior art, the technical scheme has the advantages that:

1. the positioner designed by the technical scheme can effectively control the depth of the pipe fitting to be expanded entering the clamping die, push the pipe fitting to be expanded placed in the clamping die until the upper end face of the pipe fitting to be expanded abuts against the positioner, realize uniform entering depth of all pipe fittings to be expanded, and ensure the consistency and qualification rate of products.

2. The locator that this technical scheme designed sets up on the expander main part, follows the expander main part and removes, has avoided the phenomenon that the expander was lost.

Drawings

Fig. 1 is a schematic structural diagram of the present technical solution.

Fig. 2 is a side view of the present solution.

Fig. 3 is a front view of a portion of the present solution.

Fig. 4 is a schematic structural view of the positioner.

Fig. 5 is an exploded view of the eccentric mechanism and the clutch mechanism.

Fig. 6 is a cross-sectional view of the present embodiment.

Fig. 7 is a cross-sectional view of the clutch mechanism.

Reference numerals: 1. a expander body; 11. a clamping part; 2. clamping the die; 3. a positioner; 31. a mounting plate; 32. a positioning plate; 4. a portal frame; 41. a driving member; 5. a clutch mechanism; 51. a clutch base; 52. a connecting groove; 53. a feeding seat; 54. a locking pin; 55. a first inserting groove; 56. a second plugging groove; 57. a clutch slope; 58. a clutch spring; 59. a mounting hole; 6. an eccentric mechanism; 61. a rotating shaft; 62. a fixing pin; 63. an eccentric screw head; 64. and a power spring.

Detailed Description

The following describes the specific embodiments of the present technical solution in further detail with reference to the accompanying drawings.

A pipe expander with a positioning pipe blocking function, comprising: the pipe expander body 1 is provided with a clamping part 11 in a recessed manner at the lower end thereof, and is used for expanding a pipe fitting to be expanded; the clamping die 2 is movably arranged in the clamping part 11 and is used for clamping a pipe fitting to be expanded; wherein, the clamping part 11 is provided with a locator 3, and the locator 3 is used for controlling the depth of the pipe fitting to be expanded entering the clamping die 2; the distance between the lower end surface of the locator 3 and the clamping die 2 is smaller than or equal to the distance between the upper edge of the clamping part 11 and the clamping die 2. As shown in fig. 1 to 3, the positioner 3 is disposed above the clamping mold 2, the direction of the disposition is determined according to the positions of the clamping holes of the clamping mold 2, and in particular, the disposition is in a direction in which the clamping holes are densely disposed, the positioner 3 follows the expander body 1, when a pipe to be expanded is disposed in which clamping hole, the positioner 3 can be moved above the corresponding clamping hole, the position of the pipe to be expanded is defined, after the pipe to be expanded passes through the clamping hole of the clamping mold 2, the upper end face of the pipe to be expanded abuts against the lower end face of the positioner 3, H1 is the distance between the upper edge of the clamping portion 11 and the clamping mold 2, H2 is the distance between the lower end face of the positioner 3 and the clamping mold 2, and H2 is less than or equal to H1, so that the arrangement can ensure that the pipe to be expanded abuts against the positioner 3 preferentially, and the size of H2 can be adjusted by adjusting the mounting position of the positioner 3.

Preferably, the positioner 3 includes at least: mounting plates 31, both ends of which are mounted on the expander body 1 by screws; and a positioning plate 32 protruding from the mounting plate 31 and disposed above the clamping mold, wherein the positioner 3 and the clamping mold 2 are disposed parallel to each other. As shown in fig. 1-3, the mounting plate 31 is tightly attached to the expander body 1, and the positioning plates 32 are perpendicular to the mounting plate 31, so that the positioning plates 32 are parallel to the clamping dies 2, and the distances between the positioning plates 32 and the clamping dies 2 are equal everywhere, that is, the upper end face of the pipe to be expanded can be completely abutted against the positioning plates 32, and the positioner 3 can be integrally arranged on the expander body 1.

Preferably, the pipe expanding main body at least includes: a portal frame 4; the eccentric mechanism 6 is arranged in the pipe expanding cavity of the portal frame 4 and is used for expanding the pipe fitting to be expanded; a driving member 41 for controlling the circumferential rotation and the up-and-down movement of the eccentric mechanism 6; a clutch mechanism 5 for connecting the driving member 41 and the eccentric mechanism 6 and for blocking up-and-down movement of the eccentric mechanism 6; wherein the clutch mechanism 5 has at least: the clutch seat 51 is provided with a connecting groove 52 at the upper end for connecting the driving member 41; a feeding seat which is in threaded connection with the inside of the expanding pipe cavity and is used for transmitting power to the eccentric mechanism 6; the upper end of the lock pin 54 is inserted into an insertion groove I55 formed in the lower end of the clutch seat 51, the lower end of the lock pin 54 is inserted into an insertion groove II 56 formed in the upper end of the feeding seat 53, and the lower end of the lock pin 54 is provided with a clutch inclined surface 57; the clutch spring 58 is arranged in a mounting hole 59 formed in the lock pin 54, the upper end of the clutch spring is abutted against the bottom of the first inserting groove 55, and the lower end of the clutch spring is abutted against the lock pin 54, so that the lock pin 54 always has a downward movement trend; when the pipe expansion is completed and the driving piece 41 continues to rotate forwards, the lock pin 54 is separated from the second inserting groove 56 through the clutch inclined surface 57, so that the clutch seat 51 and the feeding seat 53 are separated; when the driving member 41 is reversed, the lower end of the lock pin 54 abuts against the second insertion groove 56, and synchronous withdrawal of the clutch seat 51 and the feeding seat 53 is achieved. As shown in fig. 4-6, the eccentric mechanism 6 can move downwards and rotate by the driving member 41, the driving member 41 controls the clutch mechanism 5 to rotate forwards and reversely to realize the downward or upward movement of the eccentric mechanism 6, the number of the lock pins 54 is two, the lock pins 54 and the clutch seat 51 are symmetrically inserted into the clutch seat 51, through holes for installing the lock pins are formed in the through holes, the lock pins are used for detachably installing the lock pins 54 on the clutch seat 51, the lock pins are movably clamped in the through holes, the lock pins 54 can be prevented from being separated from the first inserting groove 55 when moving upwards and downwards, when the clutch seat 51 rotates, the feed seat 53 is driven to synchronously rotate by the lock pins 54, the feed seat 53 drives the eccentric mechanism 6 to synchronously rotate, in the expanding process, the continuous forward rotation of the clutch seat 51 can enable the feed seat 53 to continuously move downwards, when the feed seat 53 moves until the upper end face of the feed seat 53 abuts against the clutch inclined face 57, the notch of the second inserting groove 56 generates upward and horizontal thrust to the clutch inclined face 57 (i.e. the lock pins 54), the lock pins 54 compresses the first inserting spring 58 and moves into the first inserting groove 55, and the feed seat 53 is prevented from being separated from the inner wall 55, and the feed seat 53 is continuously rotated upwards when the feed seat 53 rotates, and the feed seat 53 continuously rotates, and the feed seat 53 rotates continuously.

Preferably, the eccentric mechanism 6 has at least: a rotation shaft 61, the upper end of which is provided with a fixing pin 62, the fixing pin 62 being engaged in the clutch seat 51 for realizing synchronous rotation of the rotation shaft 61 and the clutch seat 51; an eccentric screw head 63 provided at a lower end of the rotation shaft 61; a power spring 64 which is sleeved outside the rotating shaft 61, with its upper end abutting the feeding seat 53 and its lower end abutting the eccentric screw head 63; the downward movement of the feed seat 53 presses the power spring 64, effecting the downward movement of the eccentric screw head 63. As shown in fig. 4-6, the rotating shaft 61 vertically penetrates the feeding seat 53 and is fixedly connected with the clutch seat 51, synchronous rotation with the clutch seat 51 is realized through the horizontally arranged fixing pin 62, when the feeding seat 53 is fixedly rotated, self lifting can be realized through threaded cooperation with the inner side wall of the portal frame 4, the eccentric thread head 63 is pushed to move downwards by the descending compression power spring 64 of the feeding seat 53, the clutch seat 51 is driven to move downwards simultaneously through the rotating shaft 61, when the eccentric thread head 63 completes pipe expansion, continuous movement cannot be carried out, at the moment, the feeding seat 53 can continuously move downwards until the clutch mechanism 5 acts, and the arrangement mode can ensure that after pipe expansion is completed, the eccentric thread head 63 can not continuously squeeze a pipeline, so that the pipeline is damaged.

The foregoing shows and describes the basic principles and main features of the present technical solution and the advantages of the present technical solution. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of protection of the technical solution is defined by the appended claims and equivalents thereof.

Claims

1. A pipe expander with locating baffle function, comprising:

the pipe expander comprises a pipe expander main body (1), wherein a clamping part (11) is concavely formed at the lower end of the pipe expander main body and is used for expanding a pipe of a pipe fitting to be expanded;

the clamping die (2) is movably arranged in the clamping part (11) and is used for clamping a pipe fitting to be expanded;

the clamping part (11) is provided with a locator (3), and the locator (3) is used for controlling the depth of a pipe fitting to be expanded into the clamping die (2);

the distance between the lower end surface of the locator (3) and the clamping die (2) is smaller than or equal to the distance between the upper edge of the clamping part (11) and the clamping die (2).

2. A pipe expander with a pipe positioning function according to claim 1, characterized in that the positioner (3) comprises at least:

the two ends of the mounting plate (31) are mounted on the expander main body (1) through screws;

and a positioning plate (32) which is arranged on the mounting plate (31) in a protruding manner and is arranged above the clamping die (2).

3. The expander with a pipe positioning function according to claim 1, wherein: the locator (3) and the clamping die (2) are arranged in parallel.

4. The expander with a pipe positioning function according to claim 1, wherein: the locator (3) is integrally connected to the expander body (1).

5. The expander with a pipe stopper positioning function according to claim 1, wherein the expander body comprises at least:

a portal frame (4);

the eccentric mechanism (6) is arranged in the pipe expanding cavity of the portal frame (4) and is used for expanding the pipe fitting to be expanded;

a driving member (41) for controlling the circumferential rotation and the up-and-down movement of the eccentric mechanism (6);

the clutch mechanism (5) is used for connecting the driving piece (41) and the eccentric mechanism (6) and also used for blocking up-and-down movement of the eccentric mechanism (6);

wherein the clutch mechanism (5) comprises at least:

the upper end of the clutch seat (51) is provided with a connecting groove (52) for connecting the driving piece (41);

the feeding seat is in threaded connection with the inside of the expanding cavity and is used for transmitting power to the eccentric mechanism (6);

the upper end of the lock pin (54) is inserted into an insertion groove I (55) formed in the lower end of the clutch seat (51), the lower end of the lock pin is inserted into an insertion groove II (56) formed in the upper end of the feeding seat (53), and the lower end of the lock pin (54) is provided with a clutch inclined surface (57);

the clutch spring (58) is arranged in a mounting hole (59) formed in the lock pin (54), the upper end of the clutch spring is abutted against the bottom of the first inserting groove (55), and the lower end of the clutch spring is abutted against the lock pin (54), so that the lock pin (54) always has a downward movement trend;

when the pipe expansion is completed and the driving piece (41) continues to rotate forwards, the lock pin (54) is separated from the second inserting groove (56) through the clutch inclined surface (57), so that the clutch seat (51) and the feeding seat (53) are separated;

when the driving piece (41) rotates reversely, the lower end of the lock pin (54) is abutted in the inserting groove II (56), so that the clutch seat (51) and the feeding seat (53) can retract synchronously.

6. A pipe expander with a pipe positioning function according to claim 5, characterized in that the eccentric mechanism (6) has at least:

a rotating shaft (61), the upper end of which is provided with a fixing pin (62), the fixing pin (62) is clamped in the clutch seat (51) for realizing synchronous rotation of the rotating shaft (61) and the clutch seat (51);

an eccentric screw head (63) provided at the lower end of the rotation shaft (61);

a power spring (64) which is sleeved outside the rotating shaft (61), the upper end of which is abutted against the feeding seat (53), and the lower end of which is abutted against the eccentric screw head (63);

the feeding seat (53) moves downwards to press the power spring (64) so as to realize the downward movement of the eccentric thread head (63).