Connecting device for hot dipping plastic steel pipes

Abstract

The utility model discloses a connecting device for hot-dip plastic steel pipes. The connecting device comprises a locking assembly and two half sleeve bodies, wherein the two half sleeve bodies are buckled and locked through the locking assembly to be combined into a barrel shape and clamped between the ends of the two butt-jointed hot-dip plastic steel pipes to achieve sealing connection of the two hot-dip plastic steel pipes. The locking assembly comprises a T-shaped bolt, a top plate is arranged at the end, away from the linear head, of the T-shaped bolt, and a compression spring is arranged between the top plate and the linear head. The half sleeve body comprises a half sleeve body with a semicircular cross section, and a left turning plate and a right turning plate are arranged on the outer side walls of the left end and the right end of the half sleeve body in a one-to-one correspondence manner; a horizontal linear through hole is formed in the right turning plate, and a horizontal linear notch, a circular notch communicated with the rear portion of the horizontal linear notch and a vertical linear notch communicated between the horizontal linear notch and the circular notch are formed in the position, opposite to the horizontal linear through hole, of the left turning plate. According to the utility model, not only can the sealing performance of the connection of the hot-dip plastic steel pipe be ensured, but also the hot-dip plastic steel pipe is convenient to connect and detach.

Description

TECHNICAL FIELD

[0001] The utility model relates to hot dip plastic steel pipe technical field, concretely relates to a kind of connecting device of hot dip plastic steel pipe. BACKGROUND

[0002] Hot dip plastic steel pipe is a kind of dense glue layer that one-time film is evenly sprayed on the both sides of steel pipe inside and outside, new type pipe fitting, so that it has more anticorrosion, insulation, high and low temperature resistance and other advantages, greatly improve the adaptability of steel pipe to laying environment, and with high strength compression resistance to avoid internal cable damage.

[0003] Nowadays hot dip plastic steel pipe generally adopts flange and the like connecting device to connect, when hot dip plastic steel pipe is disassembled, there is the problem of needing to remove many screws and fixed bolts, process is complicated, and flange connection can produce gap, so that its sealing effect is poor. UTILITY MODEL CONTENTS

[0004] The utility model needs to solve the technical problem to provide a kind of connecting device of hot dip plastic steel pipe, to solve the problem raised in background art.

[0005] To solve the above technical problem, the technical scheme adopted by the utility model is as follows.

[0006] A kind of connecting device of hot dip plastic steel pipe, including locking assembly and two half sleeve bodies that are combined into cylinder type by locking assembly buckling locking to be clamped between the end of two butt hot dip plastic steel pipes to realize the sealed connection of two hot dip plastic steel pipes;The locking assembly includes T-shaped bolt, and the top plate is arranged on the end of T-shaped bolt away from the head, and the compression spring is arranged between the top plate and the head of T-shaped bolt;The half sleeve body includes the half sleeve body body of semicircular cross section, and the left and right ends of the half sleeve body body are correspondingly provided with left flap and right flap;The right flap is provided with horizontal one-hole through hole for passing through the head of T-shaped bolt, and the left flap is provided with horizontal one-slot for continuing to pass through the head of T-shaped bolt, circular slot for realizing the rotation of the head of T-shaped bolt 90 ° after being communicated behind horizontal one-slot and vertical one-slot for being clamped into the head of T-shaped bolt under the elastic force of compression spring at the position opposite horizontal one-hole through hole.

[0007] Preferably, the left and right ends of the half sleeve body body are respectively provided with ladder-shaped ladder, and the two half sleeve body bodies are combined into cylinder type by ladder.

[0008] Preferably, the inner wall of the half sleeve body body is respectively provided with semicircular clamping block for clamping the circular groove of the end of hot dip plastic steel pipe outer lateral wall at two ends.

[0009] Preferably, a sealing strip is provided on the inner side wall of the half-body body at the position opposite to the joint of the two hot-dip plastic-coated steel pipe ends to cover the joint seam and achieve a seal.

[0010] Preferably, the vertical slot is formed on the side of the horizontal slot near the circular slot, and the length and width of the vertical slot, the horizontal slot, and the horizontal through hole are respectively adapted to the length and width of the T-shaped pin.

[0011] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0012] This utility model, through its half-body and locking components, not only ensures the sealing of the hot-dip plastic-coated steel pipe connection, but also facilitates the connection and disassembly of the hot-dip plastic-coated steel pipe, greatly improving the efficiency of the connection and disassembly of the hot-dip plastic-coated steel pipe. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the T-shaped pin of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the half-body of this utility model.

[0016] Among them: 1. Half-body body, 11. Trapezoidal step, 2. Left flip plate, 21. Horizontal slot, 22. Vertical slot, 23. Circular slot, 3. Right flip plate, 31. Horizontal through hole, 4. Locking block, 5. T-shaped pin, 51. Top plate, 6. Compression spring. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] A connection device for hot-dip plastic-coated steel pipes, combined with Figure 1 As shown, it includes a locking assembly and two half-sleeves. The two half-sleeves are fastened together by the locking assembly to form a cylindrical shape. In use, the two half-sleeves are first fitted between the ends of two mating hot-dip plastic-coated steel pipes, and then fastened and locked to achieve a sealed connection between the two hot-dip plastic-coated steel pipes.

[0019] like Figure 2 As shown, the locking assembly includes a T-shaped pin 5, and a top plate 51 is provided on the end of the T-shaped pin 5 away from the top. The top plate 51 can be circular, and a compression spring 6 is provided between the top plate 51 and the top of the T-shaped pin 5.

[0020] like Figure 3As shown, the half sleeve body includes a half sleeve body 1, the cross section of the half sleeve body 1 is semicircular, the left end outer wall of the half sleeve body 1 is provided with a left flap 2, and the right end outer wall of the half sleeve body 1 is provided with a right flap 3. The right flap 3 is provided with a horizontal slot hole 31, and the horizontal slot hole 31 is used for penetrating the slot head of the T-shaped bolt 5. The left flap 2 is provided with a horizontal slot notch 21, a vertical slot notch 22 and a circular notch 23 from outside to inside at a position opposite to the horizontal slot hole 31, wherein the horizontal slot notch 21 is opposite to the horizontal slot hole 31, and the horizontal slot notch 21 is used for penetrating the slot head of the T-shaped bolt 5; the circular notch 23 is connected behind the horizontal slot notch 21, and the circular notch 23 is used for rotating the slot head of the T-shaped bolt 5 by 90°; the vertical slot notch 22 is connected between the horizontal slot notch 21 and the circular notch 23, and the vertical slot notch 22 is arranged on the side of the horizontal slot notch 21 close to the circular notch 23, and the vertical slot notch 22 is used for clamping the slot head of the T-shaped bolt 5.

[0021] When the two half sleeve bodies are buckled and locked, the slot head of the T-shaped bolt 5 penetrates the horizontal slot hole 31 on one half sleeve body and then penetrates the horizontal slot notch 21 of the other half sleeve body until it penetrates the circular notch 23; after the slot head of the T-shaped bolt 5 rotates by 90° in the circular notch 23, the pressure on the slot head is reduced, and under the elastic force of the compression spring 6, the slot head of the T-shaped bolt 5 is clamped in the vertical slot notch 22, thereby achieving the buckling and locking of the two half sleeve bodies; when unlocking is needed, the T-shaped bolt 5 is pressed downward by the top plate 51, and then rotated by 90° along the circular notch 23, and then the downward pressure is slowly reduced, so that the slot head of the T-shaped bolt 5 is pulled out of the horizontal slot notch 21.

[0022] In order to ensure the locking of the two half sleeve bodies, a plurality of horizontal slot holes 31 are arranged on the half sleeve body along the length direction of the left flap 2, and a corresponding number of horizontal slot notches 21, vertical slot notches 22 and circular notches 23 are arranged on the right flap 3 along the length direction of the right flap 3, and the length and width of the vertical slot notch 22, the horizontal slot notch 21 and the horizontal slot hole 31 are matched with the length and width of the slot head of the T-shaped bolt 5.

[0023] The left and right ends of the half sleeve body 1 are respectively provided with a ladder-shaped ladder step 11, and the two half sleeve bodies 1 are combined into a cylindrical shape through the ladder steps 11, which can effectively ensure the sealing performance after locking.

[0024] The inner wall of the half sleeve body body 1 is provided with a clamping block 4 at both ends, and the clamping block 4 is semicircular. The outer wall of the end of the hot-dip plastic steel pipe to be connected is provided with a circular groove, and the circular groove is matched with the clamping block 4. The clamping block 4 is used for clamping into the circular groove of the two hot-dip plastic steel pipes to be connected, so that the two hot-dip plastic steel pipes are connected through the half sleeve. The inner side wall of the half sleeve body body 1 is provided with a sealing strip at a position opposite to the butt joint of the two hot-dip plastic steel pipe ends, and the sealing strip can wrap the butt joint after the clamping block 4 is clamped into the circular groove and the two half sleeves are locked by the locking assembly, so as to further ensure the sealing property.

[0025] In use, the two hot-dip plastic steel pipes with circular grooves at the ends are butted, and the clamping blocks 4 of the two half sleeves are clamped into the circular grooves on the two hot-dip plastic steel pipes from the two sides, respectively. The two half sleeves are connected by the T-shaped bolt 5, so that the two hot-dip plastic steel pipes are connected, and the sealing property can be ensured. When it is necessary to disconnect, the T-shaped bolt 5 is pressed downward, and then the T-shaped bolt 5 is rotated by 90° along the circular groove 23, the downward pressure is slowly reduced, the T-shaped bolt 5 is separated from the horizontal slot 21, and the operation is simple and convenient.

Claims

1. A coupling device for hot-dip plastic-coated steel pipes, characterized by: The utility model relates to a half sleeve body for hot-dip plastic steel pipe, which comprises a locking assembly and two half sleeve bodies combined into a cylindrical shape by being buckled and locked by the locking assembly and clamped between the two butt-jointed end heads of hot-dip plastic steel pipes to realize sealed connection of the two hot-dip plastic steel pipes.

2. A coupling device for hot-dip galvanised steel pipes according to claim 1, characterised in that: The right flap (3) is provided with a horizontal one-hole through hole (31) for passing through the one-head of the T-shaped bolt (5), and the left flap (2) is provided with a horizontal one-hole notch (21) for continuing to pass through the one-head of the T-shaped bolt (5) at a position opposite to the horizontal one-hole through hole (31), a circular notch (23) connected behind the horizontal one-hole notch (21) to realize 90° rotation of the one-head of the T-shaped bolt (5), and a vertical one-hole notch (22) connected between the horizontal one-hole notch (21) and the circular notch (23) to realize clamping of the one-head of the T-shaped bolt (5) under the elastic force of the compression spring (6).

3. A coupling device for hot-dip galvanized steel pipe according to claim 1, characterized in that: The left and right ends of the half sleeve body (1) are respectively provided with stepped ladder steps (11), and the two half sleeve bodies (1) are combined into a cylindrical shape through the ladder steps (11).

4. A coupling device for hot-dip galvanized steel pipe according to claim 1, wherein: The inner walls of the half sleeve body (1) are respectively provided with semicircular clamping blocks (4) for clamping the circular grooves of the outer walls of the end heads of hot-dip plastic steel pipes.

5. A coupling device for hot-dip galvanized steel pipe according to claim 1, wherein: The inner walls of the half sleeve body (1) are respectively provided with semicircular clamping blocks (4) for clamping the circular grooves of the outer walls of the end heads of hot-dip plastic steel pipes. The inner walls of the half sleeve body (1) are respectively provided with semicircular clamping blocks (4) for clamping the circular grooves of the outer walls of the end heads of hot-dip plastic steel pipes. The vertical one-hole notch (22) is arranged on the side of the horizontal one-hole notch (21) close to the circular notch (23), and the lengths and widths of the vertical one-hole notch (22), the horizontal one-hole notch (21) and the horizontal one-hole through hole (31) are matched with the length and width of the one-head of the T-shaped bolt (5).

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