Hot melting device for connection of PPR (pentatricopeptide repeats) pipe fittings

Abstract

The utility model provides a PPR pipe fitting connection hot melting device which comprises a machine body, a heat dissipation cover is installed at one end of the machine body, a heating plate is arranged on the side, away from the machine body, of the heat dissipation cover, a connecting plate is fixedly connected to the face, close to the heat dissipation cover, of the heating plate, and two small holes are formed in the face, facing the heat dissipation cover, of the connecting plate. Positioning seats are fixedly connected to the two parallel inner walls of the heat dissipation cover, inserting grooves are formed in the opposite faces of the two positioning seats, inserting blocks are inserted into the inserting grooves, threaded holes are formed in one faces of the inserting blocks, notches matched with the threaded holes are formed in the faces, facing the connecting plates, of the positioning seats, screws are inserted into the small holes, and the screws are inserted into the small holes. One end of the screw penetrates through the notch and is in threaded connection with the interior of the threaded hole, and L-shaped plates are installed on the two inner walls, adjacent to the insertion block, in the heat dissipation cover.

Description

Technical Field

[0001] The utility model is a hot melter for connecting PPR pipe fittings, belonging to the technical field of PPR pipe fitting connection. Background Art

[0002] A hot melter is a professional welding tool used to heat and melt thermoplastic plastic pipes and then connect them. The heating plate on the hot melter is connected to the body through multiple screws. The screws are close to the heating plate and the screw heads are exposed. Therefore, the screw heads are easily oxidized and rusted in a high-temperature oxygen-rich environment, which causes the hardness of the screw heads to decrease. When the tool is used to clamp the screw heads, the position where the screw heads and the tool are clamped is worn due to the decrease in hardness, so that the tool cannot smoothly clamp the screw heads, making it difficult to remove the screws. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a hot melter for connecting PPR pipe fittings to solve the problems raised in the above-mentioned background technology. The utility model has an alternative disassembly method for oxidized and rusted screws.

[0004] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a hot melter connected with a PPR pipe fitting, comprising a body, a heat dissipation cover is installed at one end of the body, a heating plate is provided on the side of the heat dissipation cover away from the body, a plurality of through holes for installing a heating die head are provided on one side of the heating plate, a connecting plate is connected and fixed to a side of the heating plate close to the heat dissipation cover, two small holes are provided on a side of the connecting plate facing the heat dissipation cover, and the side of the heat dissipation cover away from the body is open-shaped, and positioning seats are connected and fixed to two parallel inner walls of the heat dissipation cover, and the positioning seats are arranged on one side of the heat dissipation cover close to the connecting plate, and slots are provided on the opposite surfaces of the two positioning seats, and plug blocks are inserted in the slots, and a threaded hole is provided on one side of the plug block, and a notch matching the threaded hole is provided on the side of the positioning seat facing the connecting plate, and a screw is inserted in the small hole, and one end of the screw passes through the notch and is threadedly connected in the threaded hole, and L-shaped plates are installed on the two inner walls adjacent to the plug block in the heat dissipation cover, and the end of the L-shaped plate away from the heat dissipation cover extends to the outside of the heat dissipation cover and is plugged with the connecting plate.

[0005] Furthermore, two symmetrically arranged limiting grooves are provided on a side of the connecting plate facing the heat dissipation cover, and one end of the L-shaped plate away from the heat dissipation cover is inserted into the limiting groove.

[0006] Furthermore, a boss is connected and fixed to one side of the body facing the heat dissipation cover, the heat dissipation cover is connected and fixed to the boss, a plurality of blind holes are evenly opened on one side of the boss facing the heat dissipation cover, a plurality of plug rods matching the blind holes are evenly fixed at the edge of one side of the heat dissipation cover facing the boss, and the plug rods are installed in the blind holes.

[0007] Further, a handle is installed at one end of the body away from the heat dissipation cover, and anti-slip protrusions are evenly processed on the outer surface of the handle.

[0008] Further, the cross-section of the heat dissipation cover is rectangular, and a plurality of evenly arranged heat dissipation holes are formed on two parallel sides of the heat dissipation cover.

[0009] Further, the cross-section of the insertion block is rectangular, the cross-section of the insertion slot is rectangular, and the cross-section of the positioning seat is rectangular.

[0010] Further, a reinforcing rib is fixedly connected to one side surface of the positioning seat, and the reinforcing rib is fixedly connected to the heat dissipation cover.

[0011] Advantages of the present utility model:

[0012] 1. Insert the insertion block processed with a threaded hole into the insertion slot on the positioning seat to realize the assembly of the insertion block and the heat dissipation cover. When the threaded hole is damaged or there is a screw remaining in the threaded hole, the insertion block can be taken out of the insertion slot and replaced, avoiding the replacement of components such as the heat dissipation cover.

[0013] 2. Supported by two L-shaped plates, there is a gap between the heat dissipation cover and the connecting plate. After connecting the heat dissipation cover and the connecting plate with screws, a part of the rod portion of the screw is exposed. When the head of the screw cannot be clamped by a tool due to reduced strength, insert a hacksaw blade between the connecting plate and the heat dissipation cover to saw off the screw, facilitating the separation of the connecting plate and the heat dissipation cover, and the insertion block with the remaining screw can be replaced, having a backup disassembly method for oxidized and rusty screws. Description of the Drawings

[0014] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes, and advantages of the present utility model will become more obvious:

[0015] Figure 1 Structural schematic diagram of a hot melt welder for PPR pipe fitting connection of the present utility model;

[0016] Figure 2 Assembly schematic diagram of the insertion block, positioning seat, heat dissipation cover, and body in a hot melt welder for PPR pipe fitting connection of the present utility model;

[0017] Figure 3 Assembly schematic diagram of the L-shaped plate, positioning seat, and heat dissipation cover in a hot melt welder for PPR pipe fitting connection of the present utility model;

[0018] Figure 4 Three-dimensional view of the insertion block in a hot melt welder for PPR pipe fitting connection of the present utility model;

[0019] In the figure: 1 - body, 2 - heat dissipation holes, 3 - L-shaped plate, 4 - through holes, 5 - heating plate, 6 - screws, 7 - connecting plate, 8 - heat dissipation cover, 9 - boss, 10 - handle, 11 - positioning seat, 12 - insertion block, 13 - notch, 14 - slot, 15 - threaded hole. Detailed implementation mode

[0020] To make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation modes.

[0021] Please refer to Figure 1 and Figure 2 As shown in the figure, the present utility model provides a technical solution: a hot melt machine for connecting PPR pipe fittings, including a body 1. A heat dissipation cover 8 is installed at one end of the body 1. A boss 9 is fixedly connected to the surface of the body 1 facing the heat dissipation cover 8. The heat dissipation cover 8 is fixedly connected to the boss 9. A plurality of blind holes are evenly formed on the surface of the boss 9 facing the heat dissipation cover 8. A plurality of insertion rods matching the blind holes are evenly fixed at the edge of the surface of the heat dissipation cover 8 facing the boss 9, so that the insertion rods are installed in the blind holes, improving the connection reliability between the heat dissipation cover 8 and the body 1. A handle 10 is installed at the end of the body 1 away from the heat dissipation cover 8. Anti-slip protrusions are evenly processed on the outer surface of the handle 10. The cross-section of the heat dissipation cover 8 is rectangular. A plurality of evenly arranged heat dissipation holes 2 are formed on both parallel side surfaces of the heat dissipation cover 8. The design of the heat dissipation holes 2 is beneficial to heat dissipation.

[0022] Refer to Figures 1-4 As shown in the figure, a heating plate 5 is provided on the side of the heat dissipation cover 8 facing away from the body 1. A plurality of through holes 4 for installing heating dies are formed on one side surface of the heating plate 5. A connecting plate 7 is fixedly connected to the surface of the heating plate 5 close to the heat dissipation cover 8. Two small holes are formed on the surface of the connecting plate 7 facing the heat dissipation cover 8. The side of the heat dissipation cover 8 facing away from the body 1 is in an open shape. Positioning seats 11 with rectangular cross-sections are fixedly connected to both parallel inner walls of the heat dissipation cover 8. The positioning seats 11 are arranged on the side of the heat dissipation cover 8 close to the connecting plate 7. A reinforcing rib is fixedly connected to one side surface of the positioning seat 11, so that the reinforcing rib is fixedly connected to the heat dissipation cover 8, improving the connection stability between the positioning seat 11 and the heat dissipation cover 8. Rectangular slots 14 are formed on the opposite surfaces of the two positioning seats 11. Insertion blocks 12 with rectangular cross-sections are inserted into the slots 14. A threaded hole 15 is formed on one surface of the insertion block 12, so that the insertion block 12 processed with the threaded hole 15 is inserted into the slot 14 on the positioning seat 11, realizing the assembly of the insertion block 12 and the heat dissipation cover 8. When the threaded hole 15 is damaged or there are screws 6 remaining in the threaded hole 15, the insertion block 12 can be taken out of the slot 14 and replaced, avoiding replacing components such as the heat dissipation cover 8.

[0023] Refer to Figures 1-4, a notch 13 matching the threaded hole 15 is formed on the side of the positioning seat 11 facing the connecting plate 7. A screw 6 is inserted into the small hole. One end of the screw 6 passes through the notch 13 and is threadedly connected to the threaded hole 15. L-shaped plates 3 are installed on both inner walls of the heat dissipation cover 8 adjacent to the insertion block 12. The end of the L-shaped plate 3 away from the heat dissipation cover 8 extends to the outside of the heat dissipation cover 8 and is inserted into the connecting plate 7. Wherein, two symmetrically arranged limiting grooves are formed on the side of the connecting plate 7 facing the heat dissipation cover 8, so that the end of the L-shaped plate 3 away from the heat dissipation cover 8 is inserted into the limiting groove, improving the stability of the insertion of the L-shaped plate 3 and the connecting plate 7. Supported by the two L-shaped plates 3, there is a gap between the heat dissipation cover 8 and the connecting plate 7. After connecting the heat dissipation cover 8 and the connecting plate 7 with the screw 6, a part of the rod of the screw 6 is in a bare state. When the head of the screw 6 cannot be clamped by a tool due to a decrease in strength, a hacksaw blade is inserted between the connecting plate 7 and the heat dissipation cover 8 to saw off the screw 6, facilitating the separation of the connecting plate 7 and the heat dissipation cover 8, and the insertion block 12 with the remaining screw 6 can be replaced, having a backup disassembly method for the oxidized and rusty screw 6.

[0024] Although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hot melter for connecting PPR pipe fittings, comprising a body (1), characterized in that: A heat dissipation cover (8) is installed at one end of the machine body (1), a heating plate (5) is provided on the side of the heat dissipation cover (8) facing away from the machine body (1), a plurality of through holes (4) for installing a heating die head are provided on one side of the heating plate (5), a connecting plate (7) is connected and fixed to the side of the heating plate (5) close to the heat dissipation cover (8), two small holes are provided on the side of the connecting plate (7) facing the heat dissipation cover (8), the side of the heat dissipation cover (8) facing away from the machine body (1) is open, and positioning seats (11) are connected and fixed to two parallel inner walls of the heat dissipation cover (8), the positioning seats (11) are arranged on the side of the heat dissipation cover (8) close to the connecting plate (7), and the two positioning seats (11) are provided on the inner wall of the heat dissipation cover (8) close to the connecting plate (7). The opposite surfaces of the positioning seat (11) are provided with slots (14), an insert block (12) is inserted into the slots (14), one side of the insert block (12) is provided with a threaded hole (15), a side of the positioning seat (11) facing the connecting plate (7) is provided with a notch (13) matched with the threaded hole (15), a screw (6) is inserted into the small hole, one end of the screw (6) passes through the notch (13) and is threadedly connected in the threaded hole (15), and L-shaped plates (3) are installed on two inner walls adjacent to the insert block (12) in the heat dissipation cover (8), and one end of the L-shaped plate (3) away from the heat dissipation cover (8) extends to the outside of the heat dissipation cover (8) and is plugged into the connecting plate (7).

2. A hot melter for connecting PPR pipe fittings according to claim 1, characterized in that: Two symmetrically arranged limiting grooves are provided on a side of the connection plate (7) facing the heat dissipation cover (8), and one end of the L-shaped plate (3) away from the heat dissipation cover (8) is inserted into the limiting groove.

3. A hot melter for connecting PPR pipe fittings according to claim 1, characterized in that: A boss (9) is connected and fixed to one side of the machine body (1) facing the heat dissipation cover (8), the heat dissipation cover (8) is connected and fixed to the boss (9), a plurality of blind holes are evenly formed on one side of the boss (9) facing the heat dissipation cover (8), a plurality of plug rods matching the blind holes are evenly fixed at the edge of one side of the heat dissipation cover (8) facing the boss (9), and the plug rods are installed in the blind holes.

4. The hot melter for connecting PPR pipe fittings according to claim 1, characterized in that: A handle (10) is installed at one end of the machine body (1) away from the heat dissipation cover (8), and the outer surface of the handle (10) is uniformly processed with anti-slip protrusions.

5. The hot melter for connecting PPR pipe fittings according to claim 1, characterized in that: The cross section of the heat dissipation cover (8) is rectangular, and a plurality of evenly arranged heat dissipation holes (2) are provided on two parallel side surfaces of the heat dissipation cover (8).

6. The hot melter for connecting PPR pipe fittings according to claim 1, characterized in that: The cross section of the insert block (12) is rectangular, the cross section of the slot (14) is rectangular, and the cross section of the positioning seat (11) is rectangular.

7. The hot melter for connecting PPR pipe fittings according to claim 1, characterized in that: A reinforcing rib is connected and fixed to one side of the positioning seat (11), and the reinforcing rib is connected and fixed to the heat dissipation cover (8).

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