Combined fastener for polytetrafluoroethylene pipeline

Abstract

The utility model discloses a combined fastener for a polytetrafluoroethylene pipeline, and relates to the field of polytetrafluoroethylene pipelines, the combined fastener comprises a first fastener and a pipeline main body, the top of the first fastener is movably provided with a fastening block, the bottom of the first fastener is connected with a second fastener, one side of the first fastener is connected with a third fastener, and the other side of the first fastener is connected with a fourth fastener. A fastening plate is mounted at the top of the third fastener, a lead screw is connected to one side of the fastening plate, and a rotary knob is fixed to the end of the lead screw. The problem that the connecting end of a PTFE pipeline is difficult to bear large extrusion force, and consequently tearing gaps can be generated at the connecting position is solved, the fastening block at the end of the fastening rod is buckled in the third fastening piece, the rotary knob drives the fastening plate to move through the lead screw, the fastening block is extruded and fixed through the fastening plate, and the fastening effect is good. When the pipeline body is bent, the fastening assembly can limit the angle of the joint of the ends of the pipeline body, and tearing gaps generated by bending of the joint of the pipeline body are prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to four fluorine pipeline field, concretely is a kind of combined fastener for four fluorine pipeline. BACKGROUND

[0002] Four fluorine pipeline, full name polytetrafluoroethylene pipeline, is made of polytetrafluoroethylene material by special process, and polytetrafluoroethylene has extremely stable chemical properties, and it is extremely strong in corrosion resistance, and can resist the erosion of all chemical media, and also has good high-temperature resistance, and can be operated stably for a long time in a higher temperature environment, and these characteristics make four fluorine pipeline widely used in many industries, such as chemical production, electronic semiconductor manufacturing and food processing, which have strict requirements on the corrosion resistance and stability of pipeline.

[0003] When the four fluorine pipeline is in a complex working environment, it is often extruded by various external factors, and since the material of the four fluorine pipeline is relatively soft, the connecting port part is easily affected when it is extruded by a large external force, and the connecting port is usually the weakest link in the pipeline system, and the extrusion of the external force will cause stress concentration at the connecting port, and then the sealing structure at the connecting port will be damaged, and tearing phenomenon will occur, and once the connecting port is torn, a gap will be formed, which will cause leakage of the medium conveyed in the pipeline.

[0004] The connecting end of the existing four fluorine pipeline usually uses a flange plate to fix and connect, although the flange plate can combine and connect the four fluorine pipeline, when an external object extrudes the connecting end of the four fluorine pipeline, a tearing gap will be formed at the connecting part of the four fluorine pipeline, which will cause the liquid in the four fluorine pipeline to flow out. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims to provide a combined fastener for four fluorine pipeline to solve the technical problem that the connecting end of the four fluorine pipeline is difficult to withstand a large extrusion force, which causes a tearing gap at the connecting part of the four fluorine pipeline.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a combined fastener for four fluorine pipeline, comprising a first fastener, a fastening rod and a pipeline main body, a fastening assembly is installed at the end of the pipeline main body, the fastening assembly comprises a first fastener, a fastening block is movably installed at the top of the first fastener, a second fastener is connected to the bottom of the first fastener, a third fastener is connected to one side of the first fastener, a fastening plate is installed at the top of the third fastener, a lead screw is connected to one side of the fastening plate, and a knob is fixed to the end of the lead screw.

[0007] By adopting the technical scheme, the problem that the connecting end of the tetrafluoro pipeline is difficult to bear large extrusion force and causes a tearing gap at the connecting part of the tetrafluoro pipeline is solved, the fastening rod is turned over, the fastening block at the end of the fastening rod is buckled in the third fastener, the knob drives the fastening plate to move through the screw rod, the fastening plate extrudes and fixes the fastening block, when the pipeline body is bent, the fastening assembly can limit the angle of the connecting part at the end of the pipeline body, and the tearing gap at the connecting part of the pipeline body due to bending is prevented.

[0008] The utility model further sets up, the inner wall of first fastener is provided with rubber ring, and the width of rubber ring is same with the width of first fastener.

[0009] As preferred, when the first fastener and the second fastener are fixed together by bolts, the rubber rings in the inner walls of the first fastener and the second fastener are tightly attached to the outer wall of the pipeline body, and the extrusion of the first fastener causes the rubber ring to seal the connecting part of the pipeline body.

[0010] The utility model further sets up, the inner wall of rubber ring is provided with multiple groups of rubber strips, and the elastic deformation capacity of rubber strip is greater than the elastic deformation capacity of rubber ring.

[0011] As preferred, when the first fastener is fixedly installed on the outer wall of the pipeline body, the first fastener extrudes the rubber ring and the rubber strip, the rubber strip is deformed into a flat shape, thereby increasing the friction between the first fastener and the outer wall of the pipeline body and preventing the first fastener from sliding on the outer wall of the pipeline body.

[0012] The utility model further sets up, the first fastener and second fastener are fixedly connected through bolts.

[0013] As preferred, after the first fastener and the second fastener are spliced, the two are fixed by bolts, so that the first fastener and the second fastener fix the pipeline body.

[0014] The utility model further sets up, one side of first fastener is fixed with protective sleeve, and the inner wall diameter of protective sleeve is equal to the diameter of pipeline body.

[0015] As preferred, when the first fastener is fixedly installed on the outer wall of the pipeline body, the protective sleeve extending to the side of the first fastener protects the pipeline around the connecting part of the pipeline body, preventing the connecting part of the pipeline body from being torn due to extrusion of the local position of the pipeline body.

[0016] The utility model further sets up, the both sides of protective sleeve are provided with clamping groove and protrusion respectively, and the size of clamping groove and protrusion is matched.

[0017] As preferably, when the first fastener and the second fastener are combined and installed, the protective sleeve on one side of the first fastener and the second fastener is connected through the combination of the clamping groove and the protruding buckle, and the setting of the protrusion and the clamping groove increases the contact area of the two groups of protective sleeves, so that the protective sleeve can share the extrusion force received by the other group of protective sleeves.

[0018] The utility model further sets up, the end of fastening rod is fixed with fastening block, and the width of fastening block is greater than the width of fastening rod.

[0019] As preferably, the enclosure block and the fastening rod form the limiting part in the T-shaped fastening assembly, and the first fastener and the third fastener are fastened through the fastening rod and the fastening block.

[0020] The utility model further sets up, the recess wall surface of the third fastener top is arc-shaped, and the width of the recess of the third fastener top is greater than the width of fastening block.

[0021] As preferably, the recess wall surface of the third fastener top is arc-shaped, which facilitates the embedding of the fastening block at the end of the fastening rod into the recess at the top of the third fastener.

[0022] In summary, the utility model mainly has the following beneficial effects:

[0023] 1. The utility model discloses a fastening rod and a fastening block, which solve the problem that the connecting end of the four-fluorine pipeline is difficult to bear large extrusion force, resulting in a tearing gap at the connecting part of the four-fluorine pipeline. The fastening rod is turned over, so that the fastening block at the end of the fastening rod is buckled in the third fastener. The knob drives the fastening plate to move through the screw rod, so that the fastening plate extrudes and fixes the fastening block. When the pipeline body is bent, the fastening assembly can limit the angle of the connecting part at the end of the pipeline body, preventing the connecting part of the pipeline body from being torn due to bending.

[0024] 2. The utility model discloses a fastening plate, a screw rod and a knob. The fastening plate moves in the third fastener and extrudes and fixes the fastening block, so that the fastening block does not come off the third fastener. The screw rod is connected with the fastening block through threads, which facilitates the adjustment of the position of the fastening block. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a whole schematic view of the device of the utility model;

[0026] Figure 2 It is an installation structure diagram of the fastening assembly of the utility model;

[0027] Figure 3 It is a whole structure diagram of the first fastener of the utility model;

[0028] Figure 4 It is the third fastener partial sectional view of the utility model;

[0029] Figure 5 It is the fixed rod installation schematic view of the utility model;

[0030] Figure 6 It is the regulator overall sectional view of the utility model.

[0031] Explanation of reference signs:

[0032] 1, first fastener; 101, rubber ring; 102, rubber strip; 2, second fastener; 3, third fastener; 4, protective sleeve; 401, protrusion; 402, clamping groove; 5, fastening rod; 501, fastening block; 6, pipeline main body; 7, fastening plate; 701, screw rod; 702, knob; 8, regulator; 801, connecting rod; 802, cavity; 803, moving groove; 9, fixed rod; 901, limiting block. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model and cannot be understood as limiting the utility model.

[0034] The embodiments will be described below according to the overall structure of the utility model.

[0035] First embodiment:

[0036] Please refer to Figure 1 — Figure 4 , including first fastener 1, fastening rod 5 and pipeline main body 6, the end of pipeline main body 6 is provided with fastening assembly, and the fastening assembly contains first fastener 1, the top of first fastener 1 is movably provided with fastening block 501, the bottom of first fastener 1 is connected with second fastener 2, one side of first fastener 1 is connected with third fastener 3, the top of third fastener 3 is provided with fastening plate 7, one side of fastening plate 7 is connected with screw rod 701, and the end of screw rod 701 is fixed with knob 702, so that the problem that the connecting end of four fluorine pipeline is difficult to bear larger extrusion force and causes tearing gap at the connecting part of four fluorine pipeline is solved, the fastening rod 5 is turned over, so that the fastening block 501 at the end of fastening rod 5 is buckled in the inside of third fastener 3, knob 702 drives fastening plate 7 to move through screw rod 701, so that fastening plate 7 extrudes and fixes fastening block 501, when pipeline main body 6 is bent, the fastening assembly can limit the angle of the connecting part at the end of pipeline main body 6, and prevent tearing gap from being generated at the connecting part of pipeline main body 6 due to bending.

[0037] In the above embodiment, please refer to Figure 3 , the inner wall of the first fastener 1 is provided with a rubber ring 101, and the width of the rubber ring 101 is the same as the width of the first fastener 1. When the first fastener 1 and the second fastener 2 are fixed together by bolts, the rubber rings 101 on the inner walls of the first fastener 1 and the second fastener 2 are tightly attached to the outer wall of the pipeline body 6, and the extrusion of the first fastener 1 causes the rubber ring 101 to seal the connection of the pipeline body 6.

[0038] In the above embodiment, please refer to Figure 3 , the inner wall of the rubber ring 101 is provided with a plurality of rubber strips 102, and the elastic deformation capacity of the rubber strips 102 is greater than that of the rubber ring 101. When the first fastener 1 is fixedly installed on the outer wall of the pipeline body 1, the first fastener 1 extrudes the rubber ring 101 and the rubber strips 102, and the rubber strips 102 are deformed into flat shape, thereby increasing the friction between the first fastener 1 and the outer wall of the pipeline body 6, preventing the first fastener 1 from sliding on the outer wall of the pipeline body 6.

[0039] In the above embodiment, please refer to Figure 1 , the first fastener 1 and the second fastener 2 are fixedly connected by bolts. When the first fastener 1 and the second fastener 2 are spliced, the two are fixed by bolts, so that the first fastener 1 and the second fastener 2 fix the pipeline body 6.

[0040] In the above embodiment, please refer to Figure 3 , the first fastener 1 is fixedly provided with a protective sleeve 4 on one side, and the inner wall diameter of the protective sleeve 4 is equal to the diameter of the pipeline body 6. When the first fastener 1 is fixedly installed on the outer wall of the pipeline body 6, the protective sleeve 4 extending to one side of the first fastener 1 protects the pipeline around the connection of the pipeline body 6, preventing the connection of the pipeline body 6 from being torn due to local extrusion of the pipeline body.

[0041] In the above embodiment, please refer to Figure 3 and Figure 4 , the two sides of the protective sleeve 4 are respectively provided with a clamping groove 402 and a protrusion 401, and the size of the clamping groove 402 and the protrusion 401 is matched. When the first fastener 1 and the second fastener 2 are combined and installed, the protective sleeve 4 on one side of the first fastener 1 and the second fastener 2 is connected by clamping groove 402 and protrusion 401. The setting of the protrusion 401 and the clamping groove 402 increases the contact area of the two protective sleeves 4, so that the protective sleeve 4 can share the extrusion force received by the other protective sleeve 4.

[0042] In the above embodiment, please refer to Figure 3The end of the fastening rod 5 is fixed with a fastening block 501, and the width of the fastening block 501 is greater than the width of the fastening rod 5; the fastening block 501 and the fastening rod 5 combine to form a limiting part in the T-shaped fastening assembly; and the first fastening part 1 and the third fastening part 3 are fastened through the fastening rod 5 and the fastening block 501.

[0043] In the above embodiment, please refer to the specific Figure 4 The groove wall of the top of the third fastening part 3 is arc-shaped, and the width of the groove of the top of the third fastening part 3 is greater than the width of the fastening block 501; the groove wall of the top of the third fastening part 3 is arc-shaped, so that the fastening block 501 at the end of the fastening rod 5 can be embedded into the groove of the top of the third fastening part 3.

[0044] Second embodiment:

[0045] Please refer to Figure 5 One side of the first fastening part 1 is provided with a connecting rod 801, the end of the connecting rod 801 is connected with an adjuster 8, the inside of the adjuster 8 is provided with a cavity 802, and the inside of the cavity 802 is provided with a fixing rod 9; when the fastening assembly is fixed on the outer wall of the pipeline body 6, the connecting rod 801 is turned, the fixing rod 9 connected with the end of the connecting rod 801 is buckled into the inside of the third fastening part 3, then the adjuster 8 is rotated, the rotation of the adjuster 8 drives the fixing rod 9 to move into the inside of the cavity 802, and thus the first fastening part 1 is fixed to the third fastening part 3 through the pulling of the fixing rod 9.

[0046] In the above embodiment, please refer to the specific Figure 6 The inside of the adjuster 8 is provided with a moving groove 803, and the outer wall of the fixing rod 9 is fixed with a limiting block 901; the adjuster 8 limits the moving distance of the fixing rod 9 through the limiting block 901, so that the fixing rod 9 and the adjuster 8 are prevented from sliding and separating.

[0047] In the specific working process of the utility model, first, the first fastening part 1 and the second fastening part 2 are fixedly installed at the end of the connecting part of the pipeline body 6 through bolts, then the two groups of third fastening parts 3 are fixedly installed at one side of the connecting end of the pipeline body 6 through bolts, subsequently, the fastening rod 5 is turned over, the fastening block 501 at the end of the fastening rod 5 is buckled into the inside of the third fastening part 3, the knob 702 is rotated, the knob 702 drives the fastening plate 7 to move through the screw rod 701, the fastening plate 7 extrudes and fixes the fastening block 501, and thus the fastening assembly is installed on the connecting part of the pipeline body 6.

[0048] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, the person skilled in the art can make the modification, replacement and change of no creative contribution to the embodiment according to the need after reading the specification without departing from the principle and the purpose of the utility model, but as long as in the patent right claim range of the utility model, it is protected by the patent law.

Claims

1. A combined fastener for a tetrafluoroethylene pipe, comprising a first fastener (1), a fastening rod (5) and a pipe body (6), characterized in that: The end of the pipeline body (6) is provided with a fastening assembly, the fastening assembly comprises a first fastener (1), the top of the first fastener (1) is movably provided with a fastening block (501), the bottom of the first fastener (1) is connected with a second fastener (2), one side of the first fastener (1) is connected with a third fastener (3), the top of the third fastener (3) is provided with a fastening plate (7), one side of the fastening plate (7) is connected with a lead screw (701), and the end of the lead screw (701) is fixedly provided with a knob (702).

2. A combination fastener for use with a tetrafluoroethylene pipe according to claim 1, wherein: The inner wall of the first fastener (1) is provided with a rubber ring (101), and the width of the rubber ring (101) is the same as that of the first fastener (1).

3. A combination fastener for use with a tetrafluoroethylene pipe according to claim 2, wherein: The inner wall of the rubber ring (101) is provided with a plurality of groups of rubber strips (102), and the elastic deformation capacity of the rubber strips (102) is greater than that of the rubber ring (101).

4. A combined fastener for four fluorine pipe according to claim 1, characterized in that: The first fastener (1) and the second fastener (2) are fixedly connected through bolts.

5. A combined fastener for use with a tetrafluoroethylene pipe according to claim 1, wherein: One side of the first fastener (1) is fixedly provided with a protective sleeve (4), and the inner wall diameter of the protective sleeve (4) is equal to the diameter of the pipeline body (6).

6. A combined fastener for a tetrafluoroethylene pipe according to claim 5, wherein: The two sides of the protective sleeve (4) are respectively provided with a clamping groove (402) and a protrusion (401), and the size of the clamping groove (402) and the protrusion (401) is matched.

7. A combined fastener for use with a tetrafluoroethylene pipe according to claim 1, wherein: The end of the fastening rod (5) is fixedly provided with a fastening block (501), and the width of the fastening block (501) is greater than that of the fastening rod (5).

8. A combined fastener for use with a tetrafluoroethylene pipe according to claim 1, wherein: The groove wall surface of the top of the third fastener (3) is arc-shaped, and the width of the groove of the top of the third fastener (3) is greater than that of the fastening block (501).

9. A combined fastener for use with a tetrafluoroethylene pipe according to claim 1, wherein: The top of the first fastener (1) is movably provided with a connecting rod (801), the end of the connecting rod (801) is connected with an adjuster (8), and the end of the adjuster (8) is provided with a fixing rod (9).

10. A combined fastener for a tetrafluoroethylene pipe according to claim 9, wherein: The inside of the adjuster (8) is provided with a cavity (802), the inside of the adjuster (8) is provided with a moving groove (803), and the outer wall of the fixing rod (9) is fixedly provided with a limiting block (901).

Images