Composite plastic pipe

Abstract

The utility model discloses a composite plastic pipe which comprises composite plastic pipes and mounting rings, every two composite plastic pipes can be spliced and connected through the mounting rings, the two sides of the outer surface of each mounting ring are each provided with four inserting grooves, and inserting blocks are movably arranged on the inner sides of the inserting grooves. Wherein the two inserting blocks are movably connected with the inserting grooves through detachable mechanisms, a reinforcing layer and a corrosion-resistant layer are sequentially arranged in the composite plastic pipe from inside to outside, and a connecting sealing ring is fixedly connected to the middle of the inner wall of the composite plastic pipe through a connecting piece. The corrosion resistance and the strength of the composite plastic pipe are improved, the service life of the composite plastic pipe is prolonged, the composite plastic pipe can be spliced for use, the composite plastic pipe is convenient to replace or overhaul, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of laboratory equipment technology, specifically to a composite plastic tube. Background Technology

[0002] When conducting experiments, composite pipes are needed to transport fluids. Most composite pipes are made of PVC material. PVC has outstanding characteristics such as abundant raw materials, mature manufacturing process, low price and wide range of uses. It has now become the second largest general-purpose resin after polyethylene resin.

[0003] However, existing PVC plastic pipes cannot withstand corrosion. After prolonged use, the pipes will be corroded by chemical fluids, requiring replacement. Moreover, most pipes are integral structures, so even if there is partial damage, the entire pipe needs to be replaced, resulting in high costs. Therefore, they do not meet the current needs. To address this, we have proposed a composite plastic pipe. Utility Model Content

[0004] The purpose of this utility model is to provide a composite plastic pipe to solve the problems mentioned in the background art, such as the inability of existing PVC plastic pipes to withstand corrosion, the need for replacement of pipes after prolonged use due to corrosion by chemical fluids, and the high cost of replacing pipes due to their integral structure, even if there is partial damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite plastic pipe, comprising a composite plastic pipe and an mounting ring, wherein every two composite plastic pipes can be spliced ​​together by the mounting ring, and four slots are provided on both sides of the outer surface of the mounting ring, wherein inserts are movably provided on the inner side of the slots, wherein two inserts are movably connected to the slots by a detachable mechanism, and a reinforcing layer and a corrosion-resistant layer are sequentially provided inside the composite plastic pipe from the inside to the outside, and a connecting sealing ring is fixedly connected to the middle of the inner wall of the composite plastic pipe by a connector.

[0006] Preferably, the detachable mechanism includes a plug rod, which is installed on both sides of the front and rear faces of the mounting ring through a through hole, and a spring is sleeved on the outer surface of the plug rod.

[0007] Preferably, the inner wall of the through hole is provided with a storage groove, a locking block is installed on the opposite side of the outer surface of each pair of inserts, and a locking groove is provided on the opposite side of the outer surface of each pair of inserts.

[0008] Preferably, the card block can be inserted into the inside of the card slot, and the size of the card block is smaller than the size of the storage slot.

[0009] Preferably, the outer surface of the card block is provided with a first inclined surface, and one side of the outer surface of the insert block is provided with a second inclined surface.

[0010] Preferably, the corrosion-resistant layer is polytetrafluoroethylene, the reinforcing layer is a stainless steel wire braided layer, the stainless steel wire is fixed on the corrosion-resistant layer by braiding, and the reinforcing layer is bonded to the inner wall of the composite plastic pipe with an adhesive.

[0011] Preferably, the connecting sealing ring is a metal O-ring, and the material of the connecting sealing ring is stainless steel L.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model improves the corrosion resistance and strength of the composite plastic pipe by setting a corrosion-resistant layer and a reinforcing layer. The reinforcing layer is a stainless steel wire braided layer, and the stainless steel wire is fixed on the corrosion-resistant layer by braiding. The reinforcing layer is bonded to the inner wall of the composite plastic pipe with an adhesive. This utility model improves the corrosion resistance and strength of the composite plastic pipe and increases its service life.

[0014] 2. This utility model, by incorporating an installation ring, inserts, slots, and a detachable mechanism, facilitates the splicing and disassembly of two composite plastic tubes. When splicing two composite plastic tubes, the four inserts are inserted into the inner side of the slots, with the slots on the inserts aligned with the front and rear slots. When the inserts are inserted into the inner side of the slots, the second inclined surface contacts the first inclined surface, pushing the slots inward until the inserts are fully inserted into the slots. Under the action of a spring, the insert rod drives the slots to engage, limiting the insertion. Simultaneously, the sealing ring engages at the ends of the two composite plastic tubes, connecting them. When the composite plastic tubes need to be inspected or replaced, the two insert rods are pulled outward, disengaging the slots and releasing the limiting effect on the inserts. The composite plastic tubes can then be removed from the inner side of the installation ring for replacement or inspection. This utility model allows for the splicing of composite plastic tubes, facilitating replacement or inspection and reducing costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a main sectional view of the entire utility model;

[0017] Figure 3 This is a front sectional view of the composite plastic pipe of this utility model;

[0018] Figure 4 This is a top sectional view of the mounting ring of this utility model;

[0019] Figure 5 This is a partial structural diagram of the detachable mechanism of this utility model.

[0020] In the diagram: 1. Composite plastic tube; 2. Mounting ring; 3. Connecting sealing ring; 4. Corrosion-resistant layer; 5. Reinforcing layer; 6. Insert block; 7. Slot; 8. Detachable mechanism; 801. Insert rod; 802. Spring; 803. Through hole; 804. Storage groove; 805. Locking block; 806. Locking slot; 807. First inclined surface; 808. Second inclined surface; 9. Connector. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figures 1 to 5 The present invention provides an embodiment of a composite plastic pipe, comprising a composite plastic pipe 1 and an mounting ring 2. Every two composite plastic pipes 1 can be spliced ​​together by the mounting ring 2. Four slots 7 are provided on both sides of the outer surface of the mounting ring 2. Insert blocks 6 are movably provided on the inner side of the slots 7. Two insert blocks 6 are movably connected to the slots 7 by a detachable mechanism 8. The interior of the composite plastic pipe 1 is provided with a reinforcing layer 5 and a corrosion-resistant layer 4 from the inside to the outside. A connecting sealing ring 3 is fixedly connected to the middle of the inner wall of the composite plastic pipe 1 by a connector 9.

[0023] The detachable mechanism 8 includes a plug rod 801, which is installed on both sides of the front and rear faces of the mounting ring 2 through a through hole 803. A spring 802 is sleeved on the outer surface of the plug rod 801.

[0024] The inner wall of the through hole 803 is provided with a storage groove 804. A locking block 805 is installed on the opposite side of the outer surface of each pair of insert rods 801. A locking groove 806 is provided on the opposite side of the outer surface of each pair of insert blocks 6. The locking block 805 can be moved by the insert rod 801.

[0025] The card block 805 can be inserted into the inside of the card slot 806. The size of the card block 805 is smaller than the size of the storage slot 804. The card block 805 can be retracted into the inside of the storage slot 804.

[0026] The outer surface of the card block 805 is provided with a first inclined surface 807, and one side of the outer surface of the insert block 6 is provided with a second inclined surface 808. When the insert block 6 is inserted into the inside of the slot 7, the second inclined surface 808 contacts the first inclined surface 807, which will push the card block 805 towards the inside of the storage slot 804.

[0027] The corrosion-resistant layer 4 is made of polytetrafluoroethylene, and the reinforcing layer 5 is a stainless steel wire braided layer. The stainless steel wire is fixed to the corrosion-resistant layer 4 by braiding. The reinforcing layer 5 is bonded to the inner wall of the composite plastic pipe 1 with an adhesive, which improves the corrosion resistance of the composite plastic pipe 1 and increases the strength of the composite plastic pipe 1.

[0028] The connecting sealing ring 3 is a metal O-ring, and the material of the connecting sealing ring 3 is stainless steel 316L. The connecting sealing ring 3 is inserted into the end of the composite plastic tube 1, which can seal the connection between the two composite plastic tubes 1. At the same time, stainless steel 316L has good corrosion resistance and high strength.

[0029] When in use, this composite plastic pipe features a corrosion-resistant layer 4 and a reinforcing layer 5. The reinforcing layer 5 is a braided stainless steel wire layer, with the stainless steel wire fixed to the corrosion-resistant layer 4 through braiding. The reinforcing layer 5 is bonded to the inner wall of the composite plastic pipe 1 with an adhesive, which improves the corrosion resistance and increases the strength of the composite plastic pipe 1. The pipe is equipped with an installation ring 2, inserts 6, slots 7, and a detachable mechanism 8, facilitating the splicing and disassembly of two composite plastic pipes 1. When splicing two composite plastic pipes 1, the four inserts 6 are inserted into the inner side of the slots 7, with the inserts 6 having a locking groove 806 aligned with the front and rear slots 7. When the inserts 6 are inserted into the inner side of the slots 7, the second inclined surface 808 contacts the first inclined surface 807, pushing the locking block 805 into the receiving groove 804. The insert 6 is pushed from the side until it is fully inserted into the slot 7. Under the action of the spring 802, the insert rod 801 drives the locking block 805 to engage inside the slot 806, limiting the insertion block 6. At the same time, the connecting sealing ring 3 engages at the ends of the two composite plastic tubes 1, connecting the two composite plastic tubes 1. When it is necessary to repair or replace the composite plastic tube 1, the two insert rods 801 are pulled outwards, the locking block 805 leaves the inside of the slot 806, releasing the limitation on the insertion block 6. The composite plastic tube 1 can then be removed from the inside of the mounting ring 2 for replacement or repair. This utility model improves the corrosion resistance and strength of the composite plastic tube 1, increases its service life, and allows for splicing of the composite plastic tube 1, facilitating replacement or repair and reducing costs.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A composite plastic pipe, comprising a composite plastic pipe (1) and an mounting ring (2), characterized in that: Each pair of composite plastic tubes (1) can be spliced ​​together by mounting rings (2). Four slots (7) are provided on both sides of the outer surface of the mounting rings (2). Inserts (6) are movably provided on the inner side of the slots (7). Two of the inserts (6) are movably connected to the slots (7) by a detachable mechanism (8). The interior of the composite plastic tube (1) is provided with a reinforcing layer (5) and a corrosion-resistant layer (4) from the inside to the outside. A connecting sealing ring (3) is fixedly connected to the middle of the inner wall of the composite plastic tube (1) by a connector (9).

2. The composite plastic pipe according to claim 1, characterized in that: The detachable mechanism (8) includes a plug (801), which is installed on both sides of the front and rear faces of the mounting ring (2) through a through hole (803). A spring (802) is sleeved on the outer surface of the plug (801).

3. A composite plastic pipe according to claim 2, characterized in that: The inner wall of the through hole (803) is provided with a storage groove (804), and a locking block (805) is installed on the opposite side of the outer surface of each pair of inserts (801), and a locking groove (806) is provided on the opposite side of the outer surface of each pair of inserts (6).

4. A composite plastic pipe according to claim 3, characterized in that: The card block (805) can be inserted into the inside of the card slot (806), and the size of the card block (805) is smaller than the size of the storage slot (804).

5. A composite plastic pipe according to claim 4, characterized in that: The outer surface of the card block (805) is provided with a first inclined surface (807), and one side of the outer surface of the insert block (6) is provided with a second inclined surface (808).

6. A composite plastic pipe according to claim 1, characterized in that: The corrosion-resistant layer (4) is polytetrafluoroethylene, the reinforcing layer (5) is a stainless steel wire braided layer, the stainless steel wire is fixed on the corrosion-resistant layer (4) by braiding, and the reinforcing layer (5) is bonded to the inner wall of the composite plastic pipe (1) with an adhesive.

7. A composite plastic pipe according to claim 1, characterized in that: The connecting sealing ring (3) is a metal O-ring, and the material of the connecting sealing ring (3) is stainless steel 316L.

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