Fluoroplastic pressure-resistant lining

Abstract

The utility model discloses a fluoroplastic pressure-resistant lining, which relates to the technical field of fluoroplastics, and comprises a lining, a groove is arranged on the outer wall of the lining, a support device is arranged in the groove, the support device is used for protecting the lining, the support device comprises an elastic sheet, one end of the elastic sheet is provided with a slot, the other end of the elastic sheet is provided with an insertion block, and the insertion block is arranged in the slot. The inserting blocks are inserted into the inserting grooves and used for enabling the elastic pieces to form a ring shape in an enclosing mode, the elastic pieces are in threaded connection with bolts used for limiting separation of the inserting blocks and the inserting grooves, the linings on the outer sides of the grooves are sleeved with protection devices, the protection devices are used for limiting sundries from entering the grooves, and the protection devices comprise rubber sleeves arranged on the linings in a sleeving mode. Sponge used for filling the grooves is arranged on the inner wall of the rubber sleeve, the elastic pieces are elastic steel pieces, and the length of the elastic pieces is smaller than or equal to the perimeter of the lining. And meanwhile, the grooves are formed, so that the lining is convenient to stretch out and draw back during cold and hot, impurities are prevented from entering the grooves, and the influence on the service life of the lining is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of fluoroplastics, in particular to a fluoroplastic pressure-resistant lining. Background Art

[0002] Fluoroplastic refers to plastics made of fluorine resin. The main varieties are polytetrafluoroethylene, tetrafluoroethylene-ethylene copolymer, tetrafluoroethylene-hexafluoropropylene copolymer and trifluorochloroethylene-ethylene copolymer. Since fluoroplastics contain fluorine atoms in their molecular structure, they have many excellent properties, such as excellent electrical insulation, high heat resistance, outstanding oil resistance, solvent resistance and wear resistance, good moisture resistance and low temperature resistance. Therefore, fluoroplastics occupy an important position in defense, electromechanical, metallurgy, petrochemical and other industrial sectors.

[0003] In the prior art, a utility model patent with announcement number CN2711493Y provides a fluoroplastic composite nylon tube, and particularly relates to a nylon tube lined with a fluoroplastic tube, wherein the inner layer of the composite nylon tube is a fluoroplastic layer, and the outer layer is a nylon layer.

[0004] The fluoroplastic composite nylon tube has poor pressure resistance of the inner lining and is not convenient for expansion and contraction during cold and hot conditions. Therefore, we propose a fluoroplastic pressure-resistant inner lining to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a fluoroplastic pressure-resistant lining to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fluoroplastic pressure-resistant lining, comprising a lining, a groove is provided on the outer wall of the lining, a supporting device is provided in the groove, the supporting device is used to protect the lining, the supporting device comprises a spring sheet, a slot is provided at one end of the spring sheet, an insert block is provided at the other end of the spring sheet, the insert block is inserted into the slot to make the spring sheet form a ring, a bolt for limiting the separation of the insert block from the slot is threadedly connected to the spring sheet, and a protective device is sleeved on the lining outside the groove.

[0007] Preferably, the protective device is used to restrict debris from entering the groove.

[0008] Preferably, the protective device comprises a rubber sleeve sleeved on the inner lining, and a sponge for filling the groove is provided on the inner wall of the rubber sleeve.

[0009] Preferably, the spring sheet is an elastic steel sheet, the length of the spring sheet is less than or equal to the circumference of the liner, and the slot is a flat opening.

[0010] Preferably, the insert block is provided with a through hole for the bolt to pass through, and the size of the insert block is smaller than or equal to the size of the slot.

[0011] Preferably, the rubber sleeve is made of an elastic and corrosion-resistant rubber material, the width of the rubber sleeve is greater than the width of the groove, and the outer wall of the rubber sleeve is provided with a scratch-resistant coating.

[0012] Preferably, the width of the sponge is less than or equal to the width of the groove, the sponge is bonded to the inner wall of the rubber sleeve by glue, and the sponge is an open ring structure.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The spring piece is arranged in a ring shape around the groove, and then the plug is inserted into the slot, and then the bolt is turned. The bolt threaded spring piece is inserted into the through hole of the plug. The bolt restricts the plug from falling off from the slot, so that the spring piece is always in a ring shape in the groove. When external force acts on the spring piece, the spring piece provides support. When the force is large, the spring piece will deform. Since the spring piece has elasticity, when the force is removed, the spring piece will return to its original shape, thereby increasing the pressure resistance of the lining. At the same time, a groove is provided to facilitate expansion and contraction when hot or cold.

[0015] 2. Stretch out the rubber sleeve to increase the gap at the sponge opening, then put the rubber sleeve on the liner, continue to move the rubber sleeve to move the sponge to the groove, then release the rubber sleeve, the rubber sleeve returns to its original shape and fits the outer wall of the liner, the sponge fills the gap in the groove to prevent debris from entering the groove and affecting the service life of the liner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a structural schematic diagram of the support device in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the protection device in the utility model.

[0019] In the figure: 1, lining; 2, groove; 3, supporting device; 31, spring piece; 32, slot; 33, plug block; 34, bolt; 4, protective device; 41, rubber sleeve; 42, sponge. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3A fluoroplastic pressure-resistant lining comprises a lining 1, a groove 2 is provided on the outer wall of the lining 1, a supporting device 3 is provided in the groove 2, the supporting device 3 is used to protect the lining 1, the supporting device 3 comprises a spring piece 31, a slot 32 is provided at one end of the spring piece 31, an insert block 33 is provided at the other end of the spring piece 31, the insert block 33 is inserted into the slot 32 to make the spring piece 31 form a ring, a bolt 34 for limiting the separation of the insert block 33 and the slot 32 is threadedly connected on the spring piece 31, the spring piece 31 is an elastic steel sheet, the length of the spring piece 31 is less than or equal to the circumference of the lining 1, the slot 32 is a flat mouth, a through hole for the bolt 34 to penetrate is provided on the insert block 33, and the size of the insert block 33 is less than or equal to the size of the slot 32.

[0022] The spring piece 31 is arranged in a ring shape around the groove 2, and then the plug block 33 is inserted into the slot 32. Then the bolt 34 is turned. The bolt 34 is threadedly connected to the spring piece 31 and inserted into the through hole of the plug block 33. The bolt 34 restricts the plug block 33 from falling off from the slot 32, so that the spring piece 31 is always in a ring shape in the groove 2. When an external force acts on the spring piece 31, the spring piece 31 provides support. When the force is large, the spring piece 31 will deform. Since the spring piece 31 has elasticity, when the force is removed, the spring piece 31 will return to its original shape, thereby increasing the pressure resistance of the lining 1. At the same time, the groove 2 is provided to facilitate expansion and contraction when it is hot or cold.

[0023] A protective device 4 is sleeved on the inner lining 1 outside the groove 2. The protective device 4 is used to limit debris from entering the groove 2. The protective device 4 includes a rubber sleeve 41 sleeved on the inner lining 1. A sponge 42 for filling the groove 2 is provided on the inner wall of the rubber sleeve 41. The rubber sleeve 41 is made of an elastic and corrosion-resistant rubber material. The width of the rubber sleeve 41 is greater than the width of the groove 2. The outer wall of the rubber sleeve 41 is provided with an anti-scratch coating. The width of the sponge 42 is less than or equal to the width of the groove 2. The sponge 42 is bonded to the inner wall of the rubber sleeve 41 by glue. The sponge 42 is an open ring structure.

[0024] The rubber sleeve 41 is stretched open to increase the gap at the opening of the sponge 42. Then the rubber sleeve 41 is put on the liner 1. The rubber sleeve 41 is continued to be moved to move the sponge 42 to the groove 2. Then the rubber sleeve 41 is released. The rubber sleeve 41 returns to its original state and fits the outer wall of the liner 1. The sponge 42 fills the gap in the groove 2 to prevent debris from entering the groove 2 and affecting the service life of the liner 1.

[0025] Working principle: The utility model makes the spring piece 31 around the groove 2 in a ring shape, then inserts the plug 33 into the slot 32, and then rotates the bolt 34. The bolt 34 is threadedly connected to the spring piece 31 and inserted into the through hole of the plug 33. The bolt 34 restricts the plug 33 from falling off from the slot 32, so that the spring piece 31 is always in a ring shape in the groove 2. When an external force acts on the spring piece 31, the spring piece 31 supports it. When the force is large, the spring piece 31 will deform. Due to the elasticity of the spring piece 31, when the force is unloaded, the spring piece 31 will deform. When the rubber sleeve 41 is removed, the spring piece 31 will return to its original shape, increasing the pressure resistance of the lining 1. At the same time, a groove 2 is provided to facilitate expansion and contraction when it is hot or cold, to open the rubber sleeve 41, and to increase the gap at the opening of the sponge 42. Then the rubber sleeve 41 is put on the lining 1, and the rubber sleeve 41 continues to be moved to move the sponge 42 to the groove 2. Then the rubber sleeve 41 is released, and the rubber sleeve 41 returns to its original shape and fits the outer wall of the lining 1. The sponge 42 fills the gap in the groove 2 to prevent debris from entering the groove 2 and affecting the service life of the lining 1.

[0026] The lining 1 and the spring sheet 31 are prior art and will not be described in detail here.

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

Claims

1. A fluoroplastic pressure-resistant lining, comprising a lining (1), characterized in that: The outer wall of the lining (1) is provided with a groove (2), and a supporting device (3) is provided in the groove (2). The supporting device (3) is used to protect the lining (1). The supporting device (3) comprises a spring sheet (31), and a slot (32) is provided at one end of the spring sheet (31). An insert block (33) is provided at the other end of the spring sheet (31). The insert block (33) is inserted into the slot (32) to make the spring sheet (31) form a ring. A bolt (34) is threadedly connected to the spring sheet (31) for limiting the separation of the insert block (33) and the slot (32). A protective device (4) is sleeved on the lining (1) outside the groove (2).

2. The fluoroplastic pressure-resistant lining according to claim 1, characterized in that: The protective device (4) is used to restrict debris from entering the groove (2).

3. The fluoroplastic pressure-resistant lining according to claim 2, characterized in that: The protective device (4) comprises a rubber sleeve (41) sleeved on the inner lining (1), and a sponge (42) for filling the groove (2) is provided on the inner wall of the rubber sleeve (41).

4. The fluoroplastic pressure-resistant lining according to claim 1, characterized in that: The spring sheet (31) is an elastic steel sheet, the length of the spring sheet (31) is less than or equal to the circumference of the liner (1), and the slot (32) is a flat opening.

5. The fluoroplastic pressure-resistant lining according to claim 1, characterized in that: The insert block (33) is provided with a through hole for the bolt (34) to pass through, and the size of the insert block (33) is smaller than or equal to the size of the slot (32).

6. The fluoroplastic pressure-resistant lining according to claim 3, characterized in that: The rubber sleeve (41) is made of an elastic and corrosion-resistant rubber material, the width of the rubber sleeve (41) is greater than the width of the groove (2), and the outer wall of the rubber sleeve (41) is provided with a scratch-resistant coating.

7. The fluoroplastic pressure-resistant lining according to claim 3, characterized in that: The width of the sponge (42) is less than or equal to the width of the groove (2); the sponge (42) is bonded to the inner wall of the rubber sleeve (41) by glue; and the sponge (42) is an open annular structure.

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