Connecting device for plastic pipes

Abstract

The utility model relates to the technical field of plastic pipe connection, in particular to a connecting device for plastic pipes, which comprises a bottom box, the top of the bottom box is fixedly connected with a fixed limiting bottom block, a movable connecting block is movably inserted into the inner side of the fixed limiting bottom block, one side of the movable connecting block is fixedly connected with an anti-skidding handle, and the other side of the movable connecting block is fixedly connected with a connecting rod. A power line is fixedly connected to the other end of the anti-skid handle, a cooling fin is arranged at the bottom of the other side of the movable connecting block, and a fixed limiting frame is fixedly connected to the upper portion of the other side of the movable connecting block. The connecting heating block can be detached and replaced according to the size of a pipe, so that the heating head can be detached and replaced, and the single heating head on the surface of the connecting heating block cannot cause obstruction when the pipe is heated, and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe connection, in particular to a connecting device for plastic pipes. Background Art

[0002] Plastic pipes are chemical building materials made of high-tech composites, and chemical building materials are the fourth largest category of new building materials in the contemporary era after steel, wood, and cement. Chemical building materials have made great progress and rapid development in my country, especially the widespread use of new environmentally friendly plastic pipes, which has set off a revolution to replace traditional building materials. Plastic pipes are widely used in building water supply and drainage, urban water supply and drainage, and gas pipes due to their advantages such as small water flow loss, energy saving, material saving, ecological protection, and convenient completion. They have become the main force of urban construction pipe networks in the new century. Usually, when plastic pipes are connected, they are usually connected by hot-melt connection using an electric iron butt joint machine.

[0003] In the process of using the existing connecting device, the end of the plastic pipe is usually heated and hot-melted by a heating head to achieve connection. However, in actual use, there are usually multiple heating heads on both sides of the heating block, and the spacing between the heating heads is fixed. If the thickness of the pipe is different, when the inside of the pipe is heated and hot-melted, it is easy for the end of the pipe to be unable to stably fit on the outside of the surface of the heating head, and the adjacent heating heads will cause obstruction to the pipe. For this reason, we propose a connecting device for plastic pipes. Utility Model Content

[0004] In view of the above problems, the utility model provides a connecting device for plastic pipes, which can solve the problems existing in the above background technology.

[0005] The technical solution of the utility model is:

[0006] A connecting device for plastic pipes comprises a bottom box, the top of which is fixedly connected to a fixed limiting bottom block, the inner side of which is movably plugged with a movable connecting block, one side of which is fixedly connected to a non-slip handle, the other end of which is fixedly connected to a power cord, a heat sink is provided at the bottom of the other side of the movable connecting block, a fixed limiting frame is fixedly connected to the upper part of the other side of the movable connecting block, the inner side of the fixed limiting frame is movably clamped with a connecting heating block, the surface of the connecting heating block is provided with a heating head, a first connecting terminal is provided on the inner side of one end of the fixed limiting frame close to the connecting heating block, a second connecting terminal is provided on one end of the connecting heating block close to the fixed limiting frame, and a heating coil is provided on the inner side of the connecting heating block.

[0007] In a further technical solution, a connection limit block is fixedly connected to one end of the top of the connection heating block close to the fixed limit frame, and a fixed limit mechanism is fixedly connected to the top of the fixed limit frame.

[0008] In a further technical solution, the outer side of the surface of one end of the connecting heating block close to the fixed limiting frame and the inner side of the fixed limiting frame are slidably fitted with each other.

[0009] In a further technical solution, the end surface of the first connecting terminal and the end surface of the second connecting terminal are in contact with each other.

[0010] In a further technical solution, the fixed limiting mechanism includes a connecting sleeve, the interior of the connecting sleeve is movably connected with a movable limiting rod, the outer surface of the movable limiting rod is fixedly sleeved with a force-bearing mounting disk, a force-bearing spring is fixedly connected between one side of the force-bearing mounting disk and one end of the interior of the connecting sleeve, and the end of the movable limiting rod away from the connecting limit block is fixedly connected with a connecting pull ring.

[0011] In a further technical solution, the outer side of the surface of one end of the movable limiting rod close to the connecting limiting block is fitted with the inner side of the connecting limiting block.

[0012] In a further technical solution, the outer side of the edge of the force-bearing mounting plate and the inner side of the connecting sleeve are slidably fitted with each other.

[0013] The beneficial effects of the utility model are:

[0014] 1. Through the fixed limit frame and the connecting heating block, the connecting heating block can be disassembled and replaced according to the size of the pipe during actual use, so that the heating head can be disassembled and replaced, and the single heating head on the surface of the connecting heating block can heat the pipe without causing any obstruction, which is convenient to use;

[0015] 2. Through the mutual cooperation between the provided connecting limit block and the fixed limit mechanism, when the connecting heating block is inserted into the inner side of the fixed limit frame, the fixed limit frame and the connecting heating block can be stably connected and fixed, so that the connecting heating block can be stably located on the inner side of the fixed limit frame for use, which is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a connecting device for plastic pipes according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a first connecting terminal of a connecting device for a plastic pipe according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a second connection terminal of a connecting device for plastic pipes according to an embodiment of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the structure of a fixed limit mechanism of a connecting device for plastic pipes according to an embodiment of the present invention.

[0020] Description of reference numerals:

[0021] 1. Bottom box; 2. Fixed limit bottom block; 3. Movable connection block; 4. Anti-slip handle; 5. Power cord; 6. Heat sink; 7. Fixed limit frame; 8. Connecting heating block; 9. Heating head; 10. First connecting terminal; 11. Second connecting terminal; 12. Connecting limit block; 13. Fixed limit mechanism; 14. Connecting sleeve; 15. Movable limit plug rod; 16. Force mounting plate; 17. Force spring; 18. Connecting pull ring. DETAILED DESCRIPTION

[0022] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0023] Example:

[0024] like Figure 1-Figure 4 As shown, a connecting device for plastic pipes comprises a bottom box 1, a fixed limiting bottom block 2 is fixedly connected to the top of the bottom box 1, a movable connecting block 3 is movably inserted into the inner side of the fixed limiting bottom block 2, a non-slip handle 4 is fixedly connected to one side of the movable connecting block 3, a power cord 5 is fixedly connected to the other end of the non-slip handle 4, a heat sink 6 is provided at the bottom of the other side of the movable connecting block 3, a fixed limiting frame 7 is fixedly connected to the upper part of the other side of the movable connecting block 3, a connecting heating block 8 is movably clamped on the inner side of the fixed limiting frame 7, a heating head 9 is provided on the surface of the connecting heating block 8, a first connecting terminal 10 is provided on the inner side of one end of the fixed limiting frame 7 close to the connecting heating block 8, a second connecting terminal 11 is provided on the end of the connecting heating block 8 close to the fixed limiting frame 7, and a heating coil is provided on the inner side of the connecting heating block 8.

[0025] The working principle of the above technical solution is as follows:

[0026] During use, the connecting heating block 8 and the heating head 9 can be selected according to the size of the pipe, and one end of the connecting heating block 8 can be inserted into the inner side of the fixed limiting frame 7, and the first connecting terminal 10 and the second connecting terminal 11 can be connected, so that it can be quickly installed and used.

[0027] In another embodiment, if Figure 1 As shown, a connection limit block 12 is fixedly connected to one end of the top of the connecting heating block 8 close to the fixed limit frame 7 , and a fixed limit mechanism 13 is fixedly connected to the top of the fixed limit frame 7 .

[0028] When one end of the connecting heating block 8 is inserted into the inner side of the fixed limiting frame 7, the connecting limiting block 12 and the fixed limiting mechanism 13 cooperate with each other, so that the connecting heating block 8 can be restricted and fixed, so that the connecting heating block 8 can be used stably and is easy to operate.

[0029] In another embodiment, if Figure 1 As shown, the outer side of one end surface of the connecting heating block 8 close to the fixed limiting frame 7 and the inner side of the fixed limiting frame 7 are slidably fitted to each other.

[0030] One end of the heating block 8 that is convenient for connection can be stably clamped on the inner side of the fixed limiting frame 7, so that the connection can be stably used.

[0031] In another embodiment, if Figure 2 and Figure 3 As shown, the end surface of the first connection terminal 10 and the end surface of the second connection terminal 11 are in contact with each other.

[0032] When one end of the heating block 8 for connection is clamped on the inner side of the fixed limiting frame 7, the first connection terminal 10 and the second connection terminal 11 can be fitted with each other for connection and use.

[0033] In another embodiment, if Figure 4 As shown, the fixed limiting mechanism 13 includes a connecting sleeve 14, the interior of the connecting sleeve 14 is movably connected with a movable limiting rod 15, the outer surface of the movable limiting rod 15 is fixedly sleeved with a force-bearing mounting plate 16, a force-bearing spring 17 is fixedly connected between one side of the force-bearing mounting plate 16 and one end of the interior of the connecting sleeve 14, and the end of the movable limiting rod 15 away from the connecting limit block 12 is fixedly connected with a connecting pull ring 18.

[0034] It is convenient to pull the connecting pull ring 18 to drive the movable limiting rod 15 and the force-bearing mounting plate 16 to move, compress the force-bearing spring 17, so that one end of the movable limiting rod 15 can automatically shrink toward the inside of the connecting sleeve 14, thereby quickly adjusting.

[0035] In another embodiment, if Figure 1 and Figure 4 As shown, the outer side of the surface of one end of the movable limiting rod 15 close to the connection limiting block 12 is fitted with the inner side of the connection limiting block 12 .

[0036] One end of the movable limiting rod 15 can be stably inserted into the connection limiting block 12, so as to be connected and matched with the connection limiting block 12, which is easy to operate.

[0037] In another embodiment, if Figure 4As shown, the outer side of the edge of the force-bearing mounting plate 16 and the inner side of the connecting sleeve 14 are slidably fitted with each other.

[0038] The force-bearing mounting plate 16 can stably move inside the connecting sleeve 14 , and the operation is convenient.

[0039] The working principle of the utility model is as follows: during use, the connecting heating block 8 and the heating head 9 are selected according to the size of the pipe, and then the connecting pull ring 18 is pulled to drive the movable limit rod 15 and the force-bearing mounting disk 16 to move, compressing the force-bearing spring 17, so that one end of the movable limit rod 15 can automatically shrink to the inner side of the connecting sleeve 14, and then one end of the connecting heating block 8 is inserted into the inner side of the fixed limit frame 7, so that the first connecting terminal 10 and the second connecting terminal 11 are connected. When the end of the connecting heating block 8 is completely inserted into the inner side of the fixed limit frame 7, the connecting pull ring 18 is released. When the force-bearing mounting disk 16 is acted upon by the force spring 17, it can drive the movable limit rod 15 to move, so that one end of the movable limit rod 15 can be inserted into the inner side of the connecting limit block 12, thereby installing and fixing the connecting limit block 12, the connecting heating block 8 and the heating head 9, so that the connecting heating block 8 and the heating head 9 can be used stably, and the operation is convenient and quick.

[0040] The above embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A connecting device for plastic pipes, comprising a bottom box (1), characterized in that: The top of the bottom box (1) is fixedly connected to a fixed limiting bottom block (2), the inner side of the fixed limiting bottom block (2) is movably connected to a movable connecting block (3), one side of the movable connecting block (3) is fixedly connected to an anti-slip handle (4), the other end of the anti-slip handle (4) is fixedly connected to a power cord (5), the bottom of the other side of the movable connecting block (3) is provided with a heat sink (6), the upper part of the other side of the movable connecting block (3) is fixedly connected to a fixed limiting frame (7), the inner side of the fixed limiting frame (7) is movably connected to a connecting heating block (8), the surface of the connecting heating block (8) is provided with a heating head (9), the inner side of one end of the fixed limiting frame (7) close to the connecting heating block (8) is provided with a first connecting terminal (10), the end of the connecting heating block (8) close to the fixed limiting frame (7) is provided with a second connecting terminal (11), and the inner side of the connecting heating block (8) is provided with a heating coil.

2. A plastic pipe connection device according to claim 1, characterized in that: A connection limit block (12) is fixedly connected to one end of the top of the connection heating block (8) close to the fixed limit frame (7), and a fixed limit mechanism (13) is fixedly connected to the top of the fixed limit frame (7).

3. A plastic pipe connection device according to claim 1, characterized in that: The outer side of the surface of one end of the connecting heating block (8) close to the fixed limiting frame (7) and the inner side of the fixed limiting frame (7) are slidably fitted to each other.

4. A plastic pipe connection device according to claim 1, characterized in that: The end surface of the first connecting terminal (10) and the end surface of the second connecting terminal (11) are in contact with each other.

5. A plastic pipe connection device according to claim 2, characterized in that: The fixed limiting mechanism (13) comprises a connecting sleeve (14), the interior of the connecting sleeve (14) is movably connected with a movable limiting rod (15), the outer surface of the movable limiting rod (15) is fixedly sleeved with a force-bearing mounting plate (16), a force-bearing spring (17) is fixedly connected between one side of the force-bearing mounting plate (16) and one end inside the connecting sleeve (14), and the end of the movable limiting rod (15) away from the connecting limiting block (12) is fixedly connected with a connecting pull ring (18).

6. A plastic pipe connection device according to claim 5, characterized in that: The outer side of the surface of one end of the movable limiting rod (15) close to the connecting limiting block (12) is fitted with the inside of the connecting limiting block (12).

7. A plastic pipe connection device according to claim 5, characterized in that: The outer side of the edge of the force-bearing installation plate (16) and the inner side of the connecting sleeve (14) are slidably fitted to each other.

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