Chemical corrosion resistant polypropylene pipe

Abstract

The utility model relates to the related technical field of polypropylene pipes, in particular to a chemical corrosion resistant polypropylene pipe which comprises a shaft body and a polypropylene pipe, and the surface of a sealing ring is fixedly connected with an air bag. According to the chemical-corrosion-resistant polypropylene pipe, through the arrangement of the air bag and the inner cavity, when the polypropylene pipe is used, a chemical medium in the pipe passes through the pipe at a high speed, generated impact force extrudes the air bag, after the air bag is extruded, gas in the air bag is extruded into the inner cavity, and the inner cavity expands after the gas enters the inner cavity; the multiple sets of air bags extrude at the same time, so that the whole sealing ring is expanded, the sealing effect is further improved, the six sets of inner cavities do not interfere with one another, each inner cavity can independently bear pressure and deformation, the deformation amount of the sealing ring can be flexibly adjusted at different positions according to pressure distribution borne by the sealing ring, and the sealing effect is improved. Therefore, tiny gaps and irregular shapes of connection parts can be better filled and adapted.

Description

Technical Field

[0001] The utility model relates to the technical field related to polypropylene pipes, in particular to a chemical corrosion resistant polypropylene pipe. Background Art

[0002] In modern industrial and civil fields, pipes are widely used, among which polypropylene pipes have attracted much attention due to their good performance. However, in actual use, traditional polypropylene pipes face some challenges and problems. Therefore, there is a special need for a chemically resistant polypropylene pipe.

[0003] However, during use, existing polypropylene pipes have poor sealing properties at the connections between pipes, which can cause chemical media to leak easily from the connections, thereby corroding the pipes and affecting the performance of the pipes. Utility Model Content

[0004] The purpose of the utility model is to provide a chemical corrosion-resistant polypropylene tube to solve the problem of the existing polypropylene tubes proposed in the above background technology. During use, due to the poor sealing of the connections between the tubes, chemical media are easily leaked from the connections, causing the tubes to be corroded, thereby affecting the use effect of the tubes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a chemical corrosion-resistant polypropylene tube, comprising a polypropylene tube, a flange fixedly connected to the surface of the polypropylene tube, a bolt passing through the surface of the flange, a spring washer sleeved on the surface of the bolt, a nut connected to the surface of the bolt, a groove provided on the other surface of the flange, a positioning groove provided inside the groove, a limiting groove provided inside the positioning groove, a clamping groove provided inside the limiting groove, a sealing ring connected inside the groove, a positioning rod fixedly connected to the surface of the sealing ring, the other end of the positioning rod fixedly connected to the limiting block, a sliding groove provided inside the limiting block, a spring fixedly connected inside the sliding groove, the other end of the spring fixedly connected to the sliding block, a clamping block fixedly connected to the surface of the sliding block, an airbag fixedly connected to the surface of the sealing ring, and an inner cavity provided inside the sealing ring.

[0006] Preferably, multiple groups of bolts are provided on the surface of the flange, and the bolts are tightly connected with nuts after being sleeved with spring washers.

[0007] Preferably, the diameter of the groove is consistent with the diameter of the sealing ring, and the size of the positioning groove is consistent with the size of the positioning rod.

[0008] Preferably, the size of the limiting groove matches the size of the limiting block, and the size of the clamping slot matches the size of the clamping block.

[0009] Preferably, the positioning rods are provided in multiple groups on the surface of the sealing ring, and the multiple groups of positioning rods are arranged in a ring array on the surface of the sealing ring.

[0010] Preferably, the clamping block forms a telescopic structure through a sliding block and a spring, the airbag is a spherical structure, and the airbag is communicated with the inner cavity.

[0011] Preferably, six groups of inner cavities are provided inside the sealing ring, and the six groups of inner cavities are isolated from each other.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the chemical corrosion-resistant polypropylene tube, through the arrangement of the airbag and the inner cavity, when the polypropylene tube is in use, the chemical medium inside the tube passes through the tube at high speed, and the impact force generated will squeeze the airbag. After the airbag is squeezed, the internal gas will be squeezed into the inner cavity. After the gas enters the inner cavity, the inner cavity will expand. Multiple groups of airbags are squeezed at the same time, so that the entire sealing ring expands, thereby further improving the sealing effect, and the six groups of inner cavities do not interfere with each other. Each inner cavity can independently withstand pressure and deformation, which enables the sealing ring to flexibly adjust the deformation amount at different parts according to the pressure distribution, so as to better fill and adapt to the tiny gaps and irregular shapes of the connection parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a side view of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the groove and the sealing ring cooperating with each other in the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the spring and the sliding block cooperating with each other in the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the airbag and the inner cavity cooperating with each other in the utility model.

[0017] In the figure: 1. Polypropylene pipe; 2. Flange; 3. Bolt; 4. Spring washer; 5. Nut; 6. Groove; 7. Positioning groove; 8. Limiting groove; 9. Clamping groove; 10. Sealing ring; 11. Positioning rod; 12. Limiting block; 13. Sliding groove; 14. Spring; 15. Sliding block; 16. Clamping block; 17. Airbag; 18. Inner cavity. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-4 The utility model provides a technical solution: a chemical corrosion resistant polypropylene tube, comprising a polypropylene tube 1, a flange 2 fixedly connected to the surface of the polypropylene tube 1, a bolt 3 passing through the surface of the flange 2, a spring washer 4 sleeved on the surface of the bolt 3, a nut 5 connected to the surface of the bolt 3, a groove 6 is provided on the other surface of the flange 2, a positioning groove 7 is provided inside the groove 6, a limiting groove 8 is provided inside the positioning groove 7, a card groove 9 is provided inside the limiting groove 8, a sealing ring 10 is connected to the inside of the groove 6, a positioning rod 11 is fixedly connected to the surface of the sealing ring 10, the other end of the positioning rod 11 is fixedly connected to the limiting block 12, a sliding groove 13 is provided inside the limiting block 12, and the sliding groove A spring 14 is fixedly connected to the inside of 13, and a sliding block 15 is fixedly connected to the other end of the spring 14. A clamping block 16 is fixedly connected to the surface of the sliding block 15. An airbag 17 is fixedly connected to the surface of the sealing ring 10. An inner cavity 18 is opened inside the sealing ring 10. Through the arrangement of the airbag 17 and the inner cavity 18, when the polypropylene tube 1 is in use, the chemical medium inside the tube passes through the tube at high speed, and the impact force generated will squeeze the airbag 17. After being squeezed, the airbag 17 will squeeze the internal gas into the inner cavity 18. After the gas enters the inner cavity 18, the inner cavity 18 expands. Multiple groups of airbags 17 are squeezed at the same time, so that the entire sealing ring 10 expands, thereby further improving the sealing effect.

[0020] Furthermore, multiple groups of bolts 3 are provided on the surface of the flange 2, and the bolts 3 are tightly connected with the nuts 5 after being sleeved with spring washers 4. Through the setting of the spring washers 4, when in use, the spring washers 4 are elastic and are compressed when the nuts 5 are tightened, generating a reverse elastic force, thereby making the connection between the bolts 3 and the nuts 5 more stable.

[0021] Furthermore, the diameter of the groove 6 is consistent with the diameter of the sealing ring 10, and the size of the positioning groove 7 is consistent with the size of the positioning rod 11. Through the setting of the groove 6, the placement of the sealing ring 10 is more stable during use.

[0022] Furthermore, the size of the limiting groove 8 is consistent with the size of the limiting block 12, and the size of the card slot 9 matches the size of the card block 16. Through the setting of the limiting groove 8, when in use, the limiting groove 8 limits the limiting block 12, thereby making the connection of the sealing ring 10 more stable.

[0023] Furthermore, multiple groups of positioning rods 11 are provided on the surface of the sealing ring 10 , and the multiple groups of positioning rods 11 are arranged in a ring array on the surface of the sealing ring 10 . The provision of the positioning rods 11 further improves the installation stability of the sealing ring 10 .

[0024] Furthermore, the block 16 forms a telescopic structure through the sliding block 15 and the spring 14. The airbag 17 is a spherical structure. The airbag 17 is communicated with the inner cavity 18. Through the arrangement of the block 16 and the spring 14, when in use, after the sealing ring 10 is placed into the groove 6, the block 16 also enters the slot 9 accordingly. At this time, the spring 14 will push the block 16 forward after being squeezed, so that the block 16 and the slot 9 are tightly fitted and the connection is more stable.

[0025] Furthermore, six groups of inner cavities 18 are provided inside the sealing ring 10, and the six groups of inner cavities 18 are separated from each other. Through the setting of the inner cavities 18, when in use, the six groups of inner cavities 18 do not interfere with each other, and each inner cavity 18 can withstand pressure and deformation independently, which enables the sealing ring 10 to flexibly adjust the deformation amount at different parts according to the pressure distribution it is subjected to, so as to better fill and adapt to the tiny gaps and irregular shapes of the connection parts.

[0026] Working principle: through the setting of the airbag 17 and the inner cavity 18, when the polypropylene tube 1 is in use, the chemical medium inside the tube passes through the tube at high speed, and the impact force generated will squeeze the airbag 17. After being squeezed, the airbag 17 will squeeze the internal gas into the inner cavity 18. After the gas enters the inner cavity 18, the inner cavity 18 expands. Multiple groups of airbags 17 are squeezed at the same time, so that the entire sealing ring 10 expands, thereby further improving the sealing effect. Through the setting of the spring gasket 4, when in use, the spring gasket 4 has elasticity and is compressed when the nut 5 is tightened, generating a reverse elastic force, thereby making the connection between the bolt 3 and the nut 5 more stable. Through the setting of the limit groove 8, when in use, the limit groove 8 The limit block 12 is limited, so that the connection of the sealing ring 10 is more stable. Through the setting of the block 16 and the spring 14, when in use, after the sealing ring 10 is placed in the groove 6, the block 16 also enters the slot 9 accordingly. At this time, the spring 14 will push the block 16 forward after being squeezed, so that the block 16 and the slot 9 are tightly fitted and the connection is more stable. Through the setting of the inner cavity 18, when in use, the six groups of inner cavities 18 do not interfere with each other, and each inner cavity 18 can withstand pressure and deformation independently. This allows the sealing ring 10 to flexibly adjust the deformation amount at different parts according to the pressure distribution it is subjected to, so as to better fill and adapt to the small gaps and irregular shapes of the connection parts.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical corrosion resistant polypropylene pipe, comprising a polypropylene pipe (1), characterized in that: The surface of the polypropylene pipe (1) is fixedly connected with a flange (2), the surface of the flange (2) is penetrated by a bolt (3), the surface of the bolt (3) is sleeved with a spring washer (4), the surface of the bolt (3) is connected with a nut (5), the other surface of the flange (2) is provided with a groove (6), the interior of the groove (6) is provided with a positioning groove (7), the interior of the positioning groove (7) is provided with a limiting groove (8), the interior of the limiting groove (8) is provided with a clamping groove (9), the interior of the groove (6) is connected with a sealing ring (10), the The surface of the sealing ring (10) is fixedly connected with a positioning rod (11), the other end of the positioning rod (11) is fixedly connected with a limiting block (12), a sliding groove (13) is provided inside the limiting block (12), a spring (14) is fixedly connected inside the sliding groove (13), the other end of the spring (14) is fixedly connected with a sliding block (15), the surface of the sliding block (15) is fixedly connected with a clamping block (16), the surface of the sealing ring (10) is fixedly connected with an air bag (17), and an inner cavity (18) is provided inside the sealing ring (10).

2. The chemical corrosion-resistant polypropylene pipe according to claim 1, characterized in that: The bolts (3) are arranged in multiple groups on the surface of the flange (2). The bolts (3) are tightly connected with the nuts (5) after being sleeved with spring washers (4).

3. The chemical corrosion resistant polypropylene tube according to claim 1, characterized in that: The diameter of the groove (6) is consistent with the diameter of the sealing ring (10), and the size of the positioning groove (7) is consistent with the size of the positioning rod (11).

4. The chemical corrosion resistant polypropylene pipe according to claim 1, characterized in that: The size of the limiting groove (8) matches the size of the limiting block (12), and the size of the clamping groove (9) matches the size of the clamping block (16).

5. The chemical corrosion resistant polypropylene pipe according to claim 1, characterized in that: The positioning rods (11) are arranged in multiple groups on the surface of the sealing ring (10), and the multiple groups of positioning rods (11) are arranged in a ring array on the surface of the sealing ring (10).

6. The chemical corrosion resistant polypropylene pipe according to claim 1, characterized in that: The clamping block (16) forms a telescopic structure through the sliding block (15) and the spring (14); the airbag (17) is a spherical structure; and the airbag (17) is communicated with the inner cavity (18).

7. The chemical corrosion resistant polypropylene pipe according to claim 1, characterized in that: Six groups of inner cavities (18) are provided inside the sealing ring (10), and the six groups of inner cavities (18) are isolated from each other.

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