TWI724975B - Flange joint - Google Patents

Abstract

A flange joint is suitable for assembling a wave tube to a mounting wall, the mounting wall has a mounting hole, and the flange joint includes an inner tube, an outer tube, and at least one gasket. The inner cylinder includes an inner ring wall arranged on one side of the mounting wall, an inner cylinder wall connected to the inner ring wall and extending axially out of the mounting hole, and at least one radially inwardly protruding from the inner cylinder wall It is screwed to the inner screw part of the wave tube. The outer cylinder includes an outer ring wall arranged on the other side of the mounting wall, an outer cylinder wall connected to the outer ring wall and sleeved on the periphery of the inner cylinder wall, and at least one radially inward from the outer cylinder wall It protrudes and is screwed to the outer screw part of the wave tube. The at least one gasket is provided in at least one of between the inner cylinder and the installation wall and between the installation wall and the outer cylinder. The above-mentioned structure is simple and can be assembled quickly, and the design of the at least one gasket can also improve the waterproofness.

Description

Flange joint

The invention relates to a joint, in particular to a flange joint suitable for assembling a wave tube to a receiving part and allowing cables to pass through.

In the installation process of many solar energy or electrical equipment, in order to avoid the damage of the cable due to water seepage, dust, insects and ants or bites, and the occurrence of unpredictable industrial safety accidents such as short circuit, the industry usually uses A wave tube is used to enclose and protect the periphery of the cable, so as to achieve the effects of waterproof, dust-proof and insect-proof. And when the cable needs to pass through or be integrated to another container such as a large pipe, a guide groove, a seat, a box or a box, a joint must be used to connect the wave tube to the container.

Among the numerous joints at present, most of the structure adopts a hook-shaped elastic claw to buckle on the corrugated tube to clamp and limit the corrugated tube to prevent it from falling off. However, due to the numerous joint components and the elasticity The structure of the claw is complicated, which results in slow assembly speed and high manufacturing cost. In addition, the joint and the accommodating part are clamped by only one clamping ring, which is easy to produce a gap, and it may be difficult to achieve a waterproof effect, so the design still needs to be improved.

Therefore, the object of the present invention is to provide a flange joint that can overcome at least one of the disadvantages of the prior art.

Therefore, the flange joint of the present invention is suitable for assembling a wave tube to a mounting wall, the wave tube has an outer screw groove formed on the outer peripheral surface, and the mounting wall has a first side surface and a first side spaced apart from each other. Two side surfaces and a mounting hole connecting the first side surface and the second side surface. The flange joint includes an inner tube, an outer tube, and at least one gasket.

The inner cylinder includes an inner ring wall adjacent to the first side surface of the mounting wall and in an annular shape and located around the mounting hole, and an inner cylinder wall connected to the inner peripheral edge of the inner ring wall and extending axially through the mounting hole , And at least one inner screw part that protrudes radially inward from the inner cylinder wall and is screwed to the outer screw groove of the wave tube.

The outer cylinder includes an outer ring wall adjacent to the second side surface of the mounting wall and in a ring shape and located around the mounting hole, and an outer ring wall connected to the inner periphery of the outer ring wall and axially extending around the periphery of the inner cylinder wall And at least one outer screw part that protrudes radially inward from the outer cylinder wall and is screwed to the outer screw groove of the wave tube.

The at least one gasket is provided in at least one of between the inner cylinder and the installation wall and between the installation wall and the outer cylinder.

The effect of the present invention is that the structure of the flange joint is simple, the assembly is fast, and the waterproofness can be improved.

Referring to Figures 1, 2, and 3, an embodiment of the flange joint of the present invention is suitable for assembling a wave tube 1 to a receiving member 2 along a central axis 10, and provides at least one cable (not shown in the figure). ) Through it. The corrugated tube 1 is a hollow pipe with spiral lines formed, and has an outer spiral groove 11 formed on the outer circumferential surface, and an inner spiral groove 12 formed on the inner circumferential surface corresponding to the shape of the outer spiral groove 11. The accommodating member 2 is a large hollow pipe, a guide groove, a seat, a box or a box... etc., and includes a mounting wall 21 facing one end of the wave tube 1 (only a part of which is shown in the figure), the mounting The wall 21 has a first side surface 211 away from the wave tube 1 and a second side surface 212 adjacent to the wave tube 1 spaced apart, and a line along the central axis 10 that connects the first side surface 211 and the second side surface 212的Mounting hole 213. Of course, the accommodating member 2 also includes other wall structures, but it is a general design and the shape can also be changed, so it will not be described here.

The flange joint includes an inner cylinder 3, an outer cylinder 4, and two gaskets 5.

The inner cylinder 3 is an integral hollow cylinder, and includes an inner ring wall 31 adjacent to the first side surface 211 of the mounting wall 21 and in a ring shape and located around the mounting hole 213, and an inner ring wall 31 formed by the inner ring wall 31 The inner peripheral edge of the inner peripheral edge projects radially inwardly and is a ring-shaped stop edge 32, an inner cylinder wall 33 connecting the inner peripheral edge of the inner ring wall 31 and axially extending through the mounting hole 213, and four inner cylinder walls extending from the inner cylinder wall. 33 is a protrusion-shaped inner screw portion 34 that protrudes radially inward. The blocking edge 32 can be used to block the end edge of the wave tube 1, not only can contain the sharp end edge of the wave tube 1, but also limit the distance that the wave tube 1 moves toward the first side surface 211 , To prevent the wave tube 1 from excessively extending into the receiving part 2, cutting and damaging the cable or other components. The inner cylinder wall 33 surrounds the periphery of the wave tube 1. The inner screw portions 34 can be screwed to the outer screw groove 11 of the wave tube 1. It should be noted that the number of the inner screw portions 34 is not limited to four, and can be one, two, or three according to actual needs. …Etc, its shape can also be changed.

The outer cylinder 4 is an integral hollow cylinder, and includes an outer ring wall 41 adjacent to the second side surface 212 of the mounting wall 21 and in a ring shape and located around the mounting hole 213, and an outer ring wall 41 connected to the outer ring wall 41 The inner peripheral edge and axially extending sleeve surrounds the inner cylinder wall 33 and the outer cylinder wall 42 on the periphery of the wave tube 1, and an outer cylinder wall 42 protrudes radially inward from the end edge of the outer cylinder wall 42 and is in a spiral strip shape.螺部43. The length of the outer cylinder wall 42 is longer than the length of the inner cylinder wall 33. The outer threaded portion 43 can be screwed to the outer threaded groove 11 of the wave tube 1. It should be noted that the number of the outer threaded portion 43 is not limited to one, and can also be two, three, four... And so on, its shape can also be changed.

The gaskets 5 are ring-shaped sheets made of soft rubber, plastic or silicon, and are respectively cushioned between the inner ring wall 31 and the mounting wall 21 of the inner cylinder 3 and between the mounting wall 21 and the outer cylinder 4 The outer ring walls 41 can prevent foreign objects from penetrating or passing through, so as to have waterproof, dust-proof, and insect-proof effects. It should be noted that the number of washers 5 is not limited to two, it can also be one according to actual needs. It is only cushioned between the inner ring wall 31 of the inner cylinder 3 and the mounting wall 21, or the mounting wall 21 and the mounting wall 21 Between the outer ring wall 41 of the outer cylinder 4.

When assembling, one of the gaskets 5 is first sleeved on the inner cylinder 3, and pushed to abut against the inner ring wall 31, and then the inner cylinder wall 33 of the inner cylinder 3 is removed from the first part of the mounting wall 21 One side surface 211 passes through the mounting hole 213 and moves toward the second side surface 212, so that the washer 5 is tightly clamped between the inner ring wall 31 and the mounting wall 21, and then the other washer 5 is pressed against the mounting wall 21, and the outer tube wall 42 of the outer tube 4 is sleeved on the periphery of the inner tube wall 33, and the outer ring wall 41 is pressed to tightly press the gasket 5 against the mounting wall 21 , And finally screw the wave tube 1 into the outer cylinder 4 and the inner cylinder 3 along the axial direction, and engage with the outer screw portion 43 and the inner screw portion 34 until the end edge of the wave tube 1 touches When the stop edge 32 is touched, the assembly is completed. However, the assembly method of this embodiment is not limited to this.

To sum up, the flange joint of the present invention only includes the inner cylinder 3, the outer cylinder 4, and the at least one gasket 5. The components are few and the structure is simple, so it can be assembled quickly, plus the water seal of the gasket 5. The design can improve the water resistance, so it can indeed achieve the purpose of the invention.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited by this, all simple equivalent changes and modifications made in accordance with the scope of the patent application of the present invention and the content of the patent specification still belong to This invention patent covers the scope.

1: Wave tube 10: Central axis 11: Outer screw groove 12: Inner screw groove 2: Holder 21: Install the wall 211: first side 212: second side 213: mounting hole 3: inner cylinder 31: inner ring wall 32: stop edge 33: inner cylinder wall 34: Inner screw part 4: Outer cylinder 41: Outer Ring Wall 42: Outer cylinder wall 43: Outer Conch 5: Washer

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Figure 1 is a three-dimensional exploded view illustrating a state in which an embodiment of the flange joint of the present invention is suitable for assembling a wave tube to a mounting wall; Figure 2 is a side exploded view illustrating the side view state of Figure 1; and Figure 3 is a cross-sectional side view illustrating the assembly state of the embodiment with the wave tube and the mounting wall.

1: Wave tube

10: Central axis

11: Outer screw groove

12: Inner screw groove

2: Holder

21: Install the wall

211: first side

212: second side

213: mounting hole

3: inner cylinder

31: inner ring wall

32: stop edge

33: inner cylinder wall

34: Inner screw part

4: Outer cylinder

41: Outer Ring Wall

42: Outer cylinder wall

43: Outer screw part

5: Washer

Claims (6)

A flange joint is suitable for assembling a wave tube to a mounting wall. The wave tube has an outer spiral groove formed on the outer peripheral surface. The mounting wall has a first side surface and a second side surface spaced apart from each other, And a mounting hole connecting the first side surface and the second side surface, the flange joint includes: an inner cylinder, including an inner ring wall adjacent to the first side surface of the mounting wall and having an annular shape and located around the mounting hole , An inner cylinder wall connected to the inner periphery of the inner ring wall and axially extending through the mounting hole, and at least one radially inwardly protruding from the inner cylinder wall and screwed into the inner groove of the wave tube Screw part; an outer cylinder, including an outer ring wall adjacent to the second side of the mounting wall and annular and located around the mounting hole, a connection with the inner peripheral edge of the outer ring wall and axially extending sleeve in the The outer cylinder wall on the periphery of the inner cylinder wall, and at least one outer screw portion that projects radially inward from the outer cylinder wall and is screwed to the outer groove of the wave tube; and at least one gasket, which is cushioned on the inner cylinder and At least one of between the installation wall and between the installation wall and the outer cylinder. The flange joint according to claim 1, wherein the inner cylinder further includes a stop edge projecting radially inward from the inner peripheral edge of the inner ring wall, and the stop edge can be used to stop the end of the wave tube edge. The flange joint according to claim 1 or 2, wherein the flange joint includes the gasket, which is cushioned between the inner ring wall of the inner cylinder and the mounting wall or between the mounting wall and the outer cylinder Between the outer ring walls. The flange joint according to claim 1 or 2, wherein the flange joint includes Two washers are included, which are respectively cushioned between the inner ring wall and the mounting wall of the inner cylinder and between the mounting wall and the outer ring wall of the outer cylinder. The flange joint according to claim 1, wherein the inner cylinder includes a plurality of the inner screw parts. The flange joint according to claim 1, wherein the outer cylinder includes the outer screw part in a spiral strip shape.

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