Integrated pipeline tightening device

Abstract

An integrated pipeline tightening device comprises an elastic body, an insertion end and a locking end. The insertion end comprises a limiting insertion tongue, a first clamping block, a second clamping block and a limiting clamping block. The locking end comprises a limiting insertion groove, an elastic part, a first clamping groove and a second clamping groove. Compared with the prior art, through the arrangement of the insertion end and the locking end, the pipe is held tightly through the elasticity, meanwhile, the elastic coefficient of the locking end is larger than that of the insertion end, the two ends can be held tightly when assembled, assembly is convenient, the structure is simple, and the equipment cost is low. By arranging the first clamping block, the second clamping block, the first clamping groove and the second clamping groove, the insertion end and the locking end are locked through buckle limiting and cannot be separated easily, and even if plastic is fatigued and elasticity is reduced, it can be guaranteed that the insertion end and the locking end cannot be separated through buckling of the clamping blocks and the clamping grooves; and the service life of the hoop is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting fasteners, in particular to an integrated pipeline tightening device. Background Art

[0002] The clamp is a common fastener used for connection and fixing. With its convenient use and strong clamping force, the clamp is widely used in the fastening of connectors in various mechanical equipment and chemical equipment in the fields of automobiles, ships, petroleum, chemicals, pharmaceuticals, etc.

[0003] For example, a hose clamp disclosed in Chinese invention CN201180076073.3 has a clamping device in the form of a so-called Oetiker ear. The clamping state is locked by a toothed area, which is engaged outside the ear area on the side of the ear facing away from the outer end of the clamping band. In the locked clamping state, the ears are not stressed, so that the hose clamp does not lose its clamping function even if the ears protruding outwards are damaged.

[0004] Although a tooth-shaped structure is provided, in actual use, due to the different shapes of the supporting hook and the guide hook, the corresponding hook-shaped structure must enter the accommodating portion to complete the locking. Therefore, the tooth-shaped structure is difficult to play the role of anti-loosening of the inverted teeth, and the inverted tooth structure and its interlocking parts require more costs during production and take more time to assemble. Summary of the invention

[0005] In view of this, the utility model provides an integrated pipe tightening device to solve the above technical problems.

[0006] An integrated pipe tightening device includes an elastic body, an insertion end arranged at one end of the elastic body, and a locking end arranged at the other end of the elastic body. The elastic body is an annular structure. The elastic deformation directions of the insertion end and the locking end are both toward the center of the elastic body, and the elastic coefficient of the locking end is greater than the elastic coefficient of the insertion end. The insertion end includes a limiting tongue arranged at the free end of the insertion end, a first block arranged on the insertion end body, a second block arranged on the insertion end body, and a limiting block arranged on the insertion end body. The limiting tongue is a convex strip extending radially along the elastic body. The first block, the second block and the limiting block are protrusions on the body of the insertion end, the direction of the protrusions is toward the outside away from the center of the elastic body, and they are arranged in sequence along the circumferential direction starting from the free end of the insertion end. The locking end includes a limiting slot arranged on the locking end body, an elastic part arranged on the locking end body, a first clamping slot arranged on the locking end body, and a second clamping slot arranged on the locking end body. The first clamping slot and the second clamping slot are both arranged on the body of the elastic part, the groove body protrudes toward the outside away from the center of the elastic body, and the size of the groove body is consistent with the protruding size of the first clamping block and the second clamping block.

[0007] Furthermore, the elastic body, the insertion end and the locking end are integrally formed.

[0008] Furthermore, the limiting tongue is integrally formed with the insertion end, and the width of the limiting tongue is smaller than the width of the main body of the insertion end.

[0009] Furthermore, the end of the limiting tongue is provided with a chamfer.

[0010] Furthermore, the first clamping block and the second clamping block are both wedge-shaped protrusions with a right-angled trapezoidal cross-section, and the oblique sides are both facing the limiting tongue.

[0011] Furthermore, the protrusion height of the first clamping block is smaller than the protrusion height of the second clamping block.

[0012] Furthermore, the limiting block is a protrusion with a right-angled triangle cross section, and the right-angled sides face the first block and the second block.

[0013] Furthermore, the limiting slot is arranged on the inner side of the main body of the locking end, the slot opening is oriented toward the center of the elastic main body, and the slot body width is consistent with the width of the limiting tongue.

[0014] Furthermore, the elastic portion is a rectangular protrusion formed by bending the locking end body, and the protrusion direction is away from the center of the elastic body.

[0015] Compared with the prior art, the integrated pipe tightening device provided by the utility model realizes the clamping of the pipe by using elastic force and elasticity by setting the insertion end and the locking end, and at the same time sets the elastic coefficient of the locking end to be greater than the elastic coefficient of the insertion end, so that the two ends can be kept tightly clamped during assembly, and the assembly is convenient, the structure is simple, and the equipment cost is low. And by setting the first clamping block, the second clamping block and the first clamping slot, the second clamping slot are provided, and the insertion end and the locking end are locked by the buckle limit, and will not be easily separated. Even if the plastic fatigues over time, resulting in a decrease in elastic force, the buckle of the clamping block and the clamping slot can ensure that the insertion end and the locking end will not be separated, thereby ensuring the service life of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of the integrated pipe tightening device provided by the utility model.

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the integrated pipe tightening device in another direction. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0019] like Figure 1 to Figure 2 As shown, it is a schematic diagram of the structure of the integrated pipe tightening device provided by the utility model. The integrated pipe tightening device includes an elastic body 10, an insertion end 20 arranged at one end of the elastic body 10, and a locking end 30 arranged at the other end of the elastic body 10. It can be imagined that the integrated pipe tightening device also includes some other functional modules such as reinforcing ribs on the elastic protrusion, etc., which are well known to those skilled in the art and will not be described one by one here.

[0020] The elastic body 10 is made of a plastic material with strong elasticity and is an annular structure. The elastic body 10 is integrally formed with the insertion end 20 and the locking end 30. The elastic deformation directions of the insertion end 20 and the locking end 30 are both toward the center of the circle of the elastic body 10, and the elastic coefficient of the locking end 30 is greater than the elastic coefficient of the insertion end 20, so that the locking end 30 obtains a stronger elastic force than the insertion end 20. When not assembled, the locking end 30 is located on the inner side closer to the center of the circle. When assembled, the locking end 30 is bent to the outer side of the insertion end 20 away from the center of the circle, so that the insertion end 20 and the locking end 30 are embraced on the pipe by elastic force.

[0021] The insertion end 20 includes a limiting tongue 21 arranged at the free end of the insertion end 20, a first block 22 arranged on the main body of the insertion end 20, a second block 23 arranged on the main body of the insertion end 20, and a limiting block 24 arranged on the main body of the insertion end 20.

[0022] The limiting tongue 21 is located at the free end of the insertion end 20, and is a convex strip extending along the radial direction of the elastic body 10, and is integrally formed with the insertion end 20, and the width of the limiting tongue 21 is smaller than the body width of the insertion end 20, so that when the insertion end 20 and the locking end 30 are tightly held inward under the elastic action, the limiting tongue 21 will be inserted into the corresponding structure of the locking end 30, which will be described below in conjunction with the specific structure of the locking end 30. In addition, the end of the limiting tongue 21 is provided with a chamfer to play a guiding role when inserted into the corresponding groove.

[0023] The first block 22, the second block 23 and the limit block 24 are protrusions on the main body of the insertion end 20, the direction of the protrusions is toward the outside away from the center of the elastic body 10, and they are arranged in sequence along the circumferential direction starting from the free end of the insertion end 20.

[0024] The first clamping block 22 and the second clamping block 23 are both wedge-shaped protrusions with a right-angled trapezoidal cross section, and the hypotenuses are both oriented toward the limiting tongue 21, that is, toward the insertion direction of the insertion end 20, so as to play a guiding role when the clamping block is engaged with the clamping slot. In addition, the protrusion height of the first clamping block 22 is smaller than the protrusion height of the second clamping block 23, so as to play a fool-proof role.

[0025] The limit block 24 is a protrusion with a right triangle cross section, and the right-angled sides face the first block 22 and the second block 23, so that when the insertion end 20 is inserted into the locking end 30, the free end of the locking end 30 abuts against the limit block 24 to play a limiting role.

[0026] The locking end 30 includes a limiting slot 31 arranged on the main body of the locking end 30, an elastic portion 32 arranged on the main body of the locking end 30, a first card slot 33 arranged on the main body of the locking end 30, and a second card slot 34 arranged on the main body of the locking end 30.

[0027] The limiting slot 31 is arranged on the inner side of the main body of the locking end 30, the slot opening is oriented toward the center of the elastic main body 10, and the slot width is adapted to the width of the limiting tongue 21 for insertion of the limiting tongue 21, thereby preventing the insertion end 20 from being dislocated in the axial direction after insertion, which affects the use of the clamp.

[0028] The elastic portion 32 is a rectangular protrusion formed by bending the locking end 30 body, and the protrusion direction is away from the center of the elastic body 10, so as to provide elasticity to the locking end 30 and separate the card block and the card slot by pressing the elastic portion 32 when unlocking is required.

[0029] The first card slot 33 and the second card slot 34 are both arranged on the main body of the elastic part 32, and the slot body protrudes toward the outside away from the center of the elastic body 10, and the size of the slot body is adapted to the protruding size of the first card block 22 and the second card block 23 for easy insertion.

[0030] The second card slot 34 is located at the free end of the second card slot 33 close to the locking end 30, so that the first card slot 33 corresponds to the first card block 22, and the second card slot 34 corresponds to the second card block 23. When the insertion end 20 is located on the inner side of the locking end 30 close to the center of the circle, since the insertion end 20 and the locking end 30 have an elastic force that deforms inward, the two ends will be tightened inward at the same time until the free end of the locking end 30 abuts against the limiting card block 24. At this time, the first card block 22 and the second card block 23 will also be stuck in the first card slot 33 and the second card slot 34, and the elastic force and the abutment between the card block and the card slot can effectively prevent the insertion end 20 from separating from the locking end 30.

[0031] Compared with the prior art, the integrated pipe tightening device provided by the utility model realizes the clamping of the pipe by using elastic force and elasticity by setting the insertion end 20 and the locking end 30, and at the same time sets the elastic coefficient of the locking end 30 to be greater than the elastic coefficient of the insertion end 20, so that the two ends can be kept clamped during assembly, and the assembly is convenient, the structure is simple, and the equipment cost is low. And by setting the first clamping block 22, the second clamping block 23 and the first clamping groove 33, the second clamping groove 34, the insertion end 20 and the locking end 30 are locked by the buckle limit, and will not be easily separated. Even if the plastic fatigues over time and the elastic force is reduced, the buckle of the clamping block and the clamping groove can ensure that the insertion end 20 and the locking end 30 will not separate, thereby ensuring the service life of the clamp.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. The integrated pipe tightening device is characterized by: The integrated pipe tightening device includes an elastic body, an insertion end arranged at one end of the elastic body, and a locking end arranged at the other end of the elastic body, the elastic body is an annular structure, the elastic deformation directions of the insertion end and the locking end are both toward the center of the elastic body, and the elastic coefficient of the locking end is greater than the elastic coefficient of the insertion end, the insertion end includes a limiting tongue arranged at the free end of the insertion end, a first card block arranged on the insertion end body, a second card block arranged on the insertion end body, and a limiting card block arranged on the insertion end body, the limiting tongue is a card extending radially along the elastic body The convex strip, the first card block, the second card block and the limit card block are protrusions on the main body of the insertion end, the direction of the protrusion is toward the outside away from the center of the elastic main body, and starting from the free end of the insertion end, they are arranged in sequence along the circumferential direction, the locking end includes a limiting slot arranged on the locking end main body, an elastic part arranged on the locking end main body, a first card groove arranged on the locking end main body, and a second card groove arranged on the locking end main body, the first card groove and the second card groove are both arranged on the main body of the elastic part, the groove body protrudes toward the outside away from the center of the elastic main body, and the size of the groove body is consistent with the protrusion size of the first card block and the second card block.

2. The integrated pipe tightening device according to claim 1, characterized in that: The elastic body, the inserting end and the locking end are integrally formed.

3. The integrated pipe tightening device according to claim 1, characterized in that: The limiting inserting tongue is integrally formed with the inserting end, and the width of the limiting inserting tongue is smaller than the width of the main body of the inserting end.

4. The integrated pipe tightening device according to claim 3, characterized in that: The end of the limiting inserting tongue is provided with a chamfer.

5. The integrated pipe tightening device according to claim 1, characterized in that: The first clamping block and the second clamping block are both wedge-shaped protrusions with a right-angled trapezoidal cross section, and the oblique sides are both facing the limiting tongue.

6. The integrated pipe tightening device according to claim 1, characterized in that: The protrusion height of the first clamping block is smaller than the protrusion height of the second clamping block.

7. The integrated pipe tightening device according to claim 1, characterized in that: The limit block is a protrusion with a right-angled triangle cross section, and the right-angled sides face the first block and the second block.

8. The integrated pipe tightening device according to claim 1, characterized in that: The limiting slot is arranged on the inner side of the main body of the locking end, the slot opening is oriented toward the center of the elastic main body, and the slot width is consistent with the width of the limiting tongue.

9. The integrated pipe tightening device according to claim 1, characterized in that: The elastic portion is a rectangular protrusion formed by bending the locking end body, and the protrusion direction is away from the center of the elastic body.

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