Buckling device for internal expansion type joint of water pipe

Abstract

The utility model discloses a water pipe internal expansion type connector buckling and pressing device which comprises an operation table, a driving air cylinder is arranged on the operation table, an ejector rod piece is arranged on a telescopic rod at the front end of the driving air cylinder, an internal expansion head assembly is arranged at the front end of the ejector rod piece, and the internal expansion head assembly comprises a base, a cover plate, an internal expansion head and a reset spring. The inner expansion head is installed on the base, the cover plate is fixedly arranged on one side of the base and limits the inner expansion head in the axial direction, and the reset spring is arranged on the outer circle of the inner expansion head in a surrounding mode. The inner expansion head comprises a plurality of inner expansion pieces, the inner expansion pieces are arranged in a spliced mode in the circumferential direction, and the inner expansion pieces are independently opened under the action of the ejector rod piece to achieve inner expansion buckling and pressing. The push rod piece is driven by the driving air cylinder to be matched with the internal expansion head assembly, internal expansion buckling and pressing are achieved, the overall structure is simple, the failure rate is low, the equipment cost is low, and maintenance is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fitting assembly technical field, concretely relates to a water pipe internal expansion type joint buckling device. BACKGROUND

[0002] The internal expansion type joint is a novel water pipe joint at present, and the advantages of the internal expansion type joint are that the pipe diameter size at the joint place is not affected after installation, so that the water pipe circulation is effectively guaranteed, and the water resistance is reduced.

[0003] At present, the installation of the internal expansion type joint is mostly manually operated by artificial, the consistency of each joint installation cannot be guaranteed, so that the pipe fitting factory quality is reduced, in addition, the market also has the equipment of the full-automatic joint installation, the procurement cost is higher, and the structure is complex, the maintenance and repair cost is also higher, therefore, the utility model provides a novel water pipe internal expansion type joint buckling device. UTILITY MODEL CONTENT

[0004] In order to solve the problems in the prior art, the utility model provides a water pipe internal expansion type joint buckling device which is reasonable in structure design, low in cost and high in efficiency.

[0005] The technical scheme of the utility model is as follows:

[0006] A water pipe internal expansion type joint buckling device, comprising an operation table, a driving cylinder is arranged on the operation table, a telescopic rod at the front end of the driving cylinder is provided with a top rod piece, the front end of the top rod piece is provided with an internal expansion head assembly, and the internal expansion head assembly comprises a base, a cover plate, an internal expansion head and a return spring; the internal expansion head is mounted on the base, the cover plate is fixedly arranged on one side of the base and limits the internal expansion head in the axial direction, and the return spring is arranged around the outer circle of the internal expansion head; the internal expansion head comprises a plurality of internal expansion pieces, the plurality of internal expansion pieces are arranged in a circumferential direction and are independently opened under the action of the top rod piece, and internal expansion buckling is realized.

[0007] Further, the top rod piece adopts a conical structure.

[0008] Further, one end of the top rod piece is provided with a limiting block, the top rod piece is mounted on the limiting block, and the telescopic rod at the front end of the driving cylinder is fixedly connected with the limiting block.

[0009] Further, a limiting rod is arranged on the base in a penetrating mode, the limiting rod is threadedly connected with the base, the length of the limiting rod can be adjusted, and the limiting rod can be limitedly matched with the limiting block.

[0010] Further, the inner expansion piece comprises a piece rod part, a convex part A and a convex part B; the convex part A and the convex part B are arranged at one end of the piece rod part, and the convex part B is located at the end of the piece rod part, and a groove structure is formed between the convex part A and the convex part B.

[0011] Further, the reset spring is arranged in the groove structure, and is used for limiting installation of the reset spring.

[0012] Further, the piece rod part, the convex part A and the convex part B are all fan-shaped structures, and a plurality of inner expansion pieces are spliced to form a through hole for inserting the ejector rod in the middle of the inner expansion head.

[0013] The utility model discloses the beneficial effects are as follows:

[0014] 1) the utility model discloses a drive cylinder drives the ejector rod and is cooperated with the inner expansion head assembly, realizes the inner expansion buckle pressure, and the overall structure is simple, and the failure rate is low, and the equipment cost is low, and it is convenient to maintain.

[0015] 2) the utility model discloses that the inner expansion head assembly is spliced and is formed by a plurality of inner expansion pieces, is installed and is limited through the base and the cover plate, and is automatically reset through the reset spring, and the whole structure is relatively simple.

[0016] 3) the utility model discloses the limit block is set up on the ejector rod, and the limit rod is set up on the base, and the length of limit rod can be adjusted to realize the limit of the movement of the ejector rod, control the inner expansion head opening degree, and the size of adjustable inner expansion force. DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the inner expansion head assembly structure schematic diagram of the utility model;

[0019] Figure 3 It is the inner expansion piece structure schematic diagram of the utility model;

[0020] Figure 4 It is the inner expansion head installation structure schematic diagram of the utility model;

[0021] In the drawing: 1, operation platform; 2, drive cylinder; 3, limit block; 4, ejector rod; 5, inner expansion head assembly; 501, inner expansion head; 502, reset spring; 503, base; 504, cover plate; 505, limit rod; 506, piece rod part; 507, convex part A; 508, groove structure; 509, convex part B; 510, through hole. CONCRETE IMPLEMENTING METHOD

[0022] The utility model is further described below in conjunction with the drawings of the specification.

[0023] As Figure 1 shown, a water pipe inside inflation joint buckling device, including the operating platform 1, drive cylinder 2, limit block 3, top rod 4, inside inflation head assembly 5; drive cylinder 2, limit block 3, top rod 4, inside inflation head assembly 5 are sequentially arranged on the operating platform 1, wherein the drive cylinder 2, inside inflation head assembly 5 and operating platform 1 are fixedly connected, the telescopic rod of the drive cylinder 2 is fixedly connected with the limit block 3, the top rod 4 is fixedly connected with the limit block 3, the top rod 4 can cooperate with the inside inflation head assembly 5 to realize the contraction and expansion of the inside inflation head assembly 5.

[0024] As Figure 2 shown, the inside inflation head assembly 5 includes an inside inflation head 501, a reset spring 502, a base 503 and a cover plate 504; the inside inflation head 501 is installed on the base 503, the cover plate 504 is fixedly arranged on one side of the base 503 to limit the axial direction of the inside inflation head 501, and the reset spring 502 is arranged around the outer circle of the inside inflation head.

[0025] As Figure 3 shown, the inside inflation head 501 includes a plurality of inflation blades, which are arranged in a circumferential direction to form a plurality of inflation blades, and the inflation blades include a blade rod part 506, a convex part A 507 and a convex part B 509; the convex part A 507 and the convex part B 509 are arranged at one end of the blade rod part 506, and the convex part B 509 is located at the end of the blade rod part 506, and the convex part A 507 and the convex part B 509 form a groove structure 508, and the reset spring 502 is annularly arranged in the groove structure 508, and the reset spring 502 needs to be exposed outside the base 503.

[0026] In this embodiment: the limit rod 505 is arranged through the base 503, the limit rod 505 is threadedly connected with the base 503, the limit rod 505 can be adjusted in left and right positions on the base 503, and the limit rod 505 can be limitedly matched with the limit block 3 to control the distance of the left movement of the top rod 4, thereby controlling the opening degree of the inside inflation head 501.

[0027] As Figure 4 shown, the blade rod part 506, the convex part A 507 and the convex part B 509 are all fan-shaped structures, the base 503 is provided with a circular groove for mounting the convex part B 509, and the center of the circular groove is provided with a through hole for the blade rod part 506 and the convex part A 507 to pass through; a plurality of inflation blades are spliced to form a through hole 510 in the middle of the inside inflation head 501, and the through hole 510 penetrates through both ends of the inside inflation head 501.

[0028] The top rod 4 can cooperate with the through hole 510, and the top rod 4 adopts a conical structure, when the top rod 4 is inserted into the through hole 510, a plurality of inflation blades are independently opened to realize the inside inflation buckling.

[0029] Working process:

[0030] The driving cylinder 2 is controlled by a foot switch. The operator aligns the inner inflation joint on the water pipe with the front end of the inner inflation head 501, controls the foot switch to open, and drives the driving cylinder 2 to move the limiting block 3 and the top rod 4 together. The top rod 4 moves forward and cooperates with the through hole 510 of the inner inflation head 501, and the limiting block 3 moves forward. When the limiting rod 505 is touched, the inner inflation buckle is completed, and the operator controls the foot switch to close.

Claims

1. A water pipe inside expansion joint pressing device comprising an operating table (1), characterized in that, The operating platform (1) is provided with a driving cylinder (2), an extension rod at the front end of the driving cylinder (2) is provided with a top rod piece (4), the front end of the top rod piece (4) is provided with an inner expanding head assembly (5), the inner expanding head assembly comprises a base (503), a cover plate (504), an inner expanding head (501) and a reset spring (502), the inner expanding head (501) is installed on the base (503), the cover plate (504) is fixedly arranged on one side of the base (503) and limits the axial direction of the inner expanding head (501), and the reset spring (502) is arranged around the outer circle of the inner expanding head.

2. A water pipe inside expansion joint pressing device according to claim 1, characterized in that, The top rod piece (4) adopts a conical structure.

3. The water pipe inside expansion joint pressing device according to claim 1, characterized in that, One end of the top rod piece (4) is provided with a limiting block (3), the top rod piece (4) is installed on the limiting block (3), and the extension rod at the front end of the driving cylinder (2) is fixedly connected with the limiting block (3).

4. The water pipe inside expansion joint pressing device according to claim 3, characterized in that, A limiting rod (505) is arranged on the base (503), the limiting rod (505) is threadedly connected with the base (503) and can be adjusted in length, and the limiting rod (505) can be limitedly matched with the limiting block (3).

5. The water pipe inside inflation joint buckling device according to claim 1, characterized in that, The inner expanding piece comprises a piece rod part (506), a convex part A (507) and a convex part B (509), the convex part A (507) and the convex part B (509) are arranged at one end of the piece rod part (506) in a spaced manner, the convex part B (509) is located at the end position of the piece rod part (506), and a groove structure (508) is formed between the convex part A (507) and the convex part B (509).

6. A water pipe inside expansion joint pressing device according to claim 5, characterized in that, The reset spring (502) is arranged in the groove structure (508) and is used for limiting installation of the reset spring (502).

7. The water pipe inside inflation joint buckling device according to claim 5, characterized in that, The piece rod part (506), the convex part A (507) and the convex part B (509) are all fan-shaped structures, and a through hole (510) for inserting the top rod piece (4) is formed in the middle of the inner expanding head (501) after the plurality of inner expanding pieces are spliced.

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