Thermoplastic tube expander

Abstract

The utility model relates to thermoplastic pipe processing technical field especially relates to a thermoplastic pipe flaring device. The flaring device is equipped with the expansion head, still is equipped with the pipe shearing device for shearing thermoplastic pipe. The operator uses the expansion head of flaring device to carry out the pipe orifice expanding diameter to a section of thermoplastic pipe, and then according to the length requirement of transmission path, uses the pipe shearing device of flaring device to cut the thermoplastic pipe and make the overall length of the two sections of thermoplastic pipe that are sleeved together satisfy the length requirement of transmission path, need not to take another pipe shearing device, and it is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of thermoplastic pipe processing, and in particular to a thermoplastic pipe flaring tool. Background Technology

[0002] Thermoplastic tubing is commonly used for transporting gases and liquids. In practical applications, multiple sections of thermoplastic tubing are often joined together to meet the length requirements of different transport paths. When joining two sections of thermoplastic tubing, it is sometimes necessary to enlarge the diameter of one section to facilitate the connection. Current technology generally uses a flaring tool for this purpose. The flaring tool includes an expanding head and a heating device. The operator first activates the heating device to heat the expanding head of the flaring tool, then inserts the expanding head into the opening of the thermoplastic tubing. Moving the flaring tool advances the expanding head axially along the thermoplastic tubing, completing the expansion of the opening while the heating device continues to heat the expanding head. After the thermoplastic pipe is enlarged at the end, it is connected to another thermoplastic pipe. When the ends of the two thermoplastic pipes overlap, the overall length becomes shorter. Therefore, when selecting thermoplastic pipes for diameter enlargement, a slightly longer thermoplastic pipe is selected. After enlarging the end of the thermoplastic pipe and connecting it to another thermoplastic pipe, a pipe cutting device is used to cut the non-connected end so that the overall length of the two connected thermoplastic pipes meets the length requirements of the transmission path. Utility Model Content

[0003] The technical problem to be solved by this utility model is that after the thermoplastic pipe is expanded in diameter, the thermoplastic pipe flapper can cut the thermoplastic pipe without the need for a separate pipe cutting device.

[0004] To solve the above problems, this utility model provides a thermoplastic tube flaring tool, which is equipped with an expanding head and a tube cutting device for cutting thermoplastic tubes.

[0005] Furthermore, it includes a handle, an expansion head mounted on the handle; a tube-cutting device is provided on the handle, including a first handle and a second handle hinged together, one handle having a positioning groove for placing a heated plastic tube into a positioning position, and the other handle having a blade, the two handles rotating toward each other to bring them together so that the blade cuts the thermoplastic tube that has been placed in the positioning groove.

[0006] Furthermore, the handle is vertically positioned, with the first part in front and the second part in the back, and the expansion head is specifically mounted on the top of the first part.

[0007] Furthermore, the two handles are specifically hinged at the bottom and rotate relative to each other at the top.

[0008] Furthermore, the blade is vertically positioned, and a vertical blade groove is opened in the middle of the bottom of the positioning groove. The blade is inserted into the blade groove to cut the thermoplastic tube that has been placed in the positioning groove.

[0009] Furthermore, the positioning groove is located on the first handle, is semi-circular, and has multiple grooves of different sizes arranged vertically; the blade is mounted on the second handle.

[0010] Furthermore, the handle has a locking mechanism that locks the two handles together, allowing the handle to be gripped for flaring operations.

[0011] Furthermore, the locking device is specifically a magnetic element.

[0012] Furthermore, the handle is equipped with a spring that drives the two unlocked handles to rotate away from each other.

[0013] Furthermore, the positioning groove is located on the first handle and is semi-circular; the second handle is provided with a blade sleeve, and the blade sleeve is provided with a corresponding semi-circular mating groove. The blade is installed in the mating groove. When the two handles are closed, the mating groove and the positioning groove form a circle that fits the thermoplastic tube.

[0014] Beneficial effects: After the operator uses the expanding head of the flaring tool to expand the diameter of a section of thermoplastic pipe, the operator can then connect this section of thermoplastic pipe to another section of thermoplastic pipe. Then, according to the length required for the transmission path, the operator can use the pipe-cutting device built into the flaring tool to cut the thermoplastic pipe so that the overall length of the two connected sections of thermoplastic pipe meets the length requirement of the transmission path. This eliminates the need for a separate pipe-cutting device, making it more convenient. Attached Figure Description

[0015] Figure 1 This is a simplified structural diagram of a thermoplastic tube, with the two handles of the tube in a closed position.

[0016] Figure 2 This is a simplified structural diagram of a thermoplastic tube viewed from the rear, with the two handles of the tube in a distance.

[0017] Figure 3 This is a simplified structural diagram of a thermoplastic tube viewed from the front, with the two handles positioned far apart.

[0018] Figure 4 This is a simplified half-section diagram of a thermoplastic tube.

[0019] Figure 5 This is a simplified structural diagram of a thermoplastic tube, with the two handles of the tube in a far apart position.

[0020] Symbol explanation:

[0021] 1-Expanding head; 2-Heating device; 3-Battery; 4-Barrel; 5-End cap; 6-Tube cutting device; 7-Handle; 8-Button; 10-Thermoplastic tube; 31-Battery receiving cavity; 61-Positioning groove; 62-Blade; 63-Blade sleeve; 64-Matching groove; 71-First handle; 72-Second handle; 73-Flange; 74-Blade groove; 75-Spring; 76-First groove; 77-Second groove; 91-First magnetic component; 92-Second magnetic component. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to specific embodiments.

[0023] thermoplastic tube flaring tool, such as Figure 1 As shown, the bottom is a vertically oriented handle 7. The handle 7 includes a front-positioned first handle portion 71 and a rear-positioned second handle portion 72. A horizontally oriented barrel 4 is mounted and fixed to the top of the first handle portion 71, and an expansion head 1 is mounted on the front end of the barrel 4. See... Figure 2 and Figure 3 The first handle 71 has a vertically oriented flange 73 extending from its rear side. The second handle 72 has a first groove 76 and a second groove 77 formed by hollowing out the center of its top and bottom ends on its front side. The bottom end of the flange 73 of the first handle 71 extends into the second groove 77 at the bottom end of the second handle 72 and is hinged to the side wall of the groove 77. The rear side of the first handle 71 has first magnetic elements 91 on both the left and right sides of the top of the flange 73. The front side of the second handle 72 has corresponding second magnetic elements 92 on both the left and right sides of the opening of the first groove 76. When the two handles 71 and 72 are closed (e.g., ...), ... Figure 1 As shown, the top of the flange 73 of the first handle 71 extends into the first groove 76 at the top of the second handle 72, and the first magnetic member 91 and the second magnetic member 92 attract each other as a locking device to lock the two handles 71 and 72.

[0024] See Figure 4 The expansion head 1 is equipped with a heating device 2 inside. See Figure 1 A button 8 for controlling the connection of the heating device 2 is installed at the bottom of the barrel 4 in front of the first handle 71. The operator holds the handle 7, presses the button 8 to start the heating device 2 to heat the expansion head 1, and then inserts the expansion head 1 forward into the opening of the thermoplastic tube 10. Moving the flaring tool forward pushes the expansion head 1 forward along the thermoplastic tube 10, so that the opening of the thermoplastic tube 10 is expanded while the heating device 2 continuously heats the expansion head 1.

[0025] See Figure 4 The barrel 4 has a battery housing 31 inside, which is connected to the heating device 2. The battery housing 31 contains a battery 3 that supplies power to the heating device 2. The opening of the battery housing 31 (not shown in the attached figure) is threaded with an end cap 5. The operator can remove the end cap 5 by hand to replace the battery 3.

[0026] See Figure 5 The flange 73 has four semi-circular positioning grooves 61 on its rear side, arranged vertically from top to bottom in descending order of size. The second handle 72 has a blade sleeve 63 with four semi-circular mating grooves 64, arranged vertically from top to bottom in descending order of size. The blade 62 is vertically installed in these four mating grooves 64. A vertical blade groove 74 is centrally located on the rear side of the flange 73 (see...). Figure 2 The blade groove 74 is located at the bottom of the positioning groove 61. After the thermoplastic tube 10 is expanded, it is sleeved with another thermoplastic tube. If it is necessary to adjust the overall length of the two sleeved thermoplastic tubes, the upper part of the second handle 72 is pulled back, causing the second magnetic chuck 92 to disengage from the first magnetic chuck 91, thereby releasing the lock of the two handles 71 and 72. A spring 75 is sandwiched between the rear side of the bottom end of the first handle 71 and the front side of the bottom end of the second handle 72. After the two handles 71 and 72 are released, the spring 75 drives the two handles 71 and 72 to rotate relative to each other and move away. The operator holds the two thermoplastic tubes joined together with one hand, positioning the non-jointed end of the thermoplastic tube in the appropriately sized positioning groove 61. With the other hand, the thumb rests on the second handle 72 and the other four fingers rest on the first handle 71. The thumb and the other four fingers simultaneously press down on the two handles 71 and 72, causing the upper parts of the two handles 71 and 72 to rotate and move closer to each other against the spring force. The blade 62 on the second handle 72 will cut the thermoplastic tube 10 that is positioned in the positioning groove 61 of the first handle 71 until it is inserted into the blade groove 74 of the first handle 71, cutting the thermoplastic tube. In this state, the two handles 71 and 72 are brought together, and the mating groove 64 and the positioning groove 61 form a circle that fits the thermoplastic tube, ensuring that the cutting section of the thermoplastic tube is a circumferential surface. Thus, the two handles 71 and 72, together with the blade, positioning groove 61 and blade groove 74, together form a tube cutting device to cut the thermoplastic tube 10.

[0027] The above description is merely an embodiment of the present invention and does not limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A thermoplastic tube flaring tool, equipped with an expanding head (1), characterized in that: It is also equipped with a pipe-cutting device (6) for cutting thermoplastic tubes (10); including a handle (7), an expansion head (1) is mounted on the handle (7); the pipe-cutting device (6) is provided on the handle (7), including a first handle (71) and a second handle (72) hinged together, one handle having a positioning groove (61) for the thermoplastic tube (10) to be placed in the positioning groove (61) and the other handle having a blade (62), the two handles (71, 72) rotate toward each other and come together so that the blade (62) cuts the thermoplastic tube (10) that has been placed in the positioning groove (61).

2. The thermoplastic tube flaring tool as described in claim 1, characterized in that: The handle (7) is vertical, with its first handle (71) in front and its second handle (72) in the back, and the expansion head (1) is specifically mounted on the top of the first handle (71).

3. The thermoplastic tube flaring tool as described in claim 2, characterized in that: The two handles (71, 72) are specifically hinged at the bottom and rotate relative to each other at the top.

4. The thermoplastic tube flaring tool as described in claim 2 or 3, characterized in that: The blade (62) is vertically positioned, and the bottom of the positioning groove (61) has a vertical blade groove (74). The blade (62) is inserted into the blade groove (74) to cut the thermoplastic tube (10) that has been positioned in the positioning groove (61).

5. The thermoplastic tube flaring tool as described in claim 4, characterized in that: The positioning groove (61) is opened on the first handle (71), is semi-circular, and has multiple grooves of different sizes, arranged vertically; the blade (62) is installed on the second handle (72).

6. The thermoplastic tube flaring tool as described in claim 1, characterized in that: The handle has a locking mechanism that locks the two handles (71, 72) in a closed position, allowing the handle (7) to be gripped for flaring operations.

7. The thermoplastic tube flaring tool as described in claim 6, characterized in that: The locking device is specifically a magnetic chuck (91, 92).

8. The thermoplastic tube flaring tool as described in claim 6, characterized in that: The handle (7) is provided with a spring (75) that drives the two unlocked handles (71, 72) to rotate away from each other.

9. The thermoplastic tube flaring tool according to any one of claims 1 to 3, characterized in that: The positioning groove (61) is opened on the first handle (71) and is semi-circular; the second handle (72) is provided with a blade sleeve (63), and the blade sleeve (63) is provided with a semi-circular docking groove (64). The blade (62) is installed in the docking groove (64). When the two handles (71, 72) are closed, the docking groove (64) and the positioning groove (61) form a circle that is compatible with the thermoplastic tube (10).

Images