Connecting structure of stainless steel pipe and self-locking elbow device

Abstract

The utility model relates to the technical field of stainless steel pipes, and discloses a connecting structure of a stainless steel pipe and a self-locking elbow device, which comprises a self-locking elbow main body, a first sealing ring is fixedly sleeved on the outer wall of the self-locking elbow main body close to one end, and a plurality of clamping grooves are arranged on the outer wall of the self-locking elbow main body close to one end. One end of the self-locking elbow body is fixedly sleeved with a second sealing ring, a plurality of balls are extruded through the outer wall of the self-locking elbow body so that the balls can move into a plurality of notches, after a plurality of clamping grooves correspond to a plurality of circular grooves, a sleeve is loosened, a limiting plate is pushed to reset through elasticity of a reset spring, and the self-locking elbow body is sealed. And at the moment, the inner wall of a limiting plate abuts against the outer walls of a plurality of balls, the outer walls of the balls are clamped in a plurality of clamping grooves, the self-locking elbow body is clamped to the inner wall of the steel pipe body, and then convenience and practicability during installation are embodied.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, and more particularly to a connection structure of a stainless steel pipe and a self-locking elbow device. Background Art

[0002] Brackets play an important role in daily production. They can not only be used to hang objects, but also facilitate the transportation of objects. The earliest brackets were fixed, and the length and curvature were generally not adjustable. However, with the development of technology, people have developed brackets with adjustable length and curvature. However, it is often found that the elbows of such brackets are prone to slipping during use. In the existing technology, interference fit is generally used between the elbow and the stainless steel pipe, which makes the connection strength between the elbow and the stainless steel pipe weak.

[0003] After searching, the patent announcement number CN204851886U discloses a connection structure of a stainless steel pipe and a self-locking elbow device, including: a first stainless steel pipe, a second stainless steel pipe and a self-locking elbow device, the self-locking elbow device including: a first elbow and a second elbow, the first elbow including a first main body and a first pipe joint arranged on one side of the first main body, the second elbow including a second main body and a second pipe joint arranged on one side of the second main body, one end of the first main body is provided with a first end cover, one end of the second main body is provided with a second end cover, the first pipe joint is provided with a first boss, the second pipe joint is provided with a second boss, the first stainless steel pipe is sleeved on the first boss, full welding is adopted between the first stainless steel pipe and the first pipe joint, the second stainless steel pipe is sleeved on the second boss, and full welding is adopted between the second stainless steel pipe and the second pipe joint, thereby greatly improving the connection strength between the stainless steel pipe and the pipe joint.

[0004] However, when the stainless steel pipe and the self-locking elbow device of the above patent are connected, full welding is required, the connection process is cumbersome and inconvenient for disassembly and assembly. Therefore, we provide a connection structure between the stainless steel pipe and the self-locking elbow device to solve the above problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a connection structure of a stainless steel pipe and a self-locking elbow device to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a connection structure between a stainless steel pipe and a self-locking elbow device, comprising a self-locking elbow body, an outer wall of the self-locking elbow body being fixedly sleeved with a first sealing ring near one end, an outer wall of the self-locking elbow body being provided with a plurality of slots near one end, one end of the self-locking elbow body being fixedly sleeved with a second sealing ring, an outer wall of the self-locking elbow body being movably sleeved with a steel pipe body near one end, an outer wall of the steel pipe body being fixedly sleeved with a limiting ring, one side of the limiting ring being fixedly connected to a plurality of supporting blocks, opposite surfaces of the plurality of supporting blocks being fixedly connected to the outer wall of the steel pipe body, and one side of the limiting ring being fixedly connected to a reset spring;

[0007] Preferably, the return spring is movably sleeved on the outer wall of the steel pipe body, and a plurality of circular grooves are provided on the outer wall of the steel pipe body near one end.

[0008] Preferably, balls are movably connected in the grooves of several circular grooves, and outer walls of several balls are movably engaged in the grooves of several clamping grooves.

[0009] Preferably, a third sealing ring is fixedly sleeved on one end of the steel pipe body, and a sleeve is movably sleeved on the outer wall of the steel pipe body.

[0010] Preferably, a plurality of notches are provided on one end of the inner wall of the sleeve, and a limiting plate is fixedly connected to the inner wall of the sleeve near one end.

[0011] Preferably, a plurality of limiting blocks are fixedly connected to the inner wall of the sleeve near one end, and the inner wall of the limiting plate corresponds to the plurality of circular grooves.

[0012] Preferably, the inner wall of the limiting plate is slidably connected to the outer wall of the steel pipe body.

[0013] The technical effects and advantages of this utility model are:

[0014] The self-locking elbow body is first moved in the direction of the steel pipe body so that the plurality of notches on the inner wall of the sleeve correspond to the plurality of circular grooves, and then the self-locking elbow body is inserted into the inner wall of the steel pipe body, and the plurality of balls are squeezed through the outer wall of the self-locking elbow body so that the plurality of balls move into the plurality of notches. When the plurality of slots correspond to the plurality of circular grooves, the sleeve is released, and the elasticity of the reset spring pushes the limit plate to reset, thereby resetting the sleeve. At this time, the inner wall of the limit plate presses against the outer wall of the plurality of balls, so that the outer walls of the plurality of balls are clamped in the plurality of slots, thereby clamping the self-locking elbow body to the inner wall of the steel pipe body, thereby embodying the convenience and practicality during installation.

[0015] 2. The utility model sets balls, and the diameters of several balls are larger than the diameters of several circular grooves, so that the outer wall through which several balls pass can be movably clamped in several circular grooves, and part of the area of ​​several balls is clamped in several clamping grooves. In fact, a small part of several balls is still clamped in several circular grooves, and the same is true for several balls clamped in several notches, thereby reflecting the convenience and practicality of connecting the steel pipe body and the self-locking elbow body. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a cross-sectional view of the steel pipe body structure of the present utility model.

[0018] Figure 3 This is a cross-sectional exploded view of the sleeve structure of the present invention.

[0019] Figure 4 This is an exploded view of the main structure of the self-locking elbow of the utility model.

[0020] The accompanying drawings are marked as follows: 1. Self-locking elbow body; 2. First sealing ring; 3. Slot; 4. Second sealing ring; 5. Steel pipe body; 6. Limiting ring; 7. Support block; 8. Return spring; 9. Circular groove; 10. Ball; 11. Third sealing ring; 12. Sleeve; 13. Notch; 14. Limiting plate; 15. Limiting block. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The connection structure between a stainless steel pipe and a self-locking elbow device involved in the present invention is not limited to the various structures described in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] The utility model provides a connection structure between a stainless steel pipe and a self-locking elbow device, comprising a self-locking elbow main body 1, a first sealing ring 2 is fixedly sleeved on the outer wall of the self-locking elbow main body 1 near one end, a plurality of slots 3 are opened on the outer wall of the self-locking elbow main body 1 near one end, a second sealing ring 4 is fixedly sleeved on one end of the self-locking elbow main body 1, a steel pipe main body 5 is movably sleeved on the outer wall of the self-locking elbow main body 1 near one end, a limiting ring 6 is fixedly sleeved on the outer wall of the steel pipe main body 5, a plurality of supporting blocks 7 are fixedly connected to one side of the limiting ring 6, the opposite surfaces of the plurality of supporting blocks 7 are all fixedly connected to the outer wall of the steel pipe main body 5, and a reset spring 8 is fixedly connected to one side of the limiting ring 6.

[0023] By setting the sleeve 12, when the self-locking elbow body 1 is installed with the steel pipe body 5, one end of the steel pipe body 5 is made to correspond to one end of the self-locking elbow body 1, so that the steel pipe body 5 is sleeved with one end of the self-locking elbow body 1. During the connection process, the sleeve 12 is first moved toward the direction of the steel pipe body 5 so that the several notches 13 opened on the inner wall of the sleeve 12 correspond to the several circular grooves 9, and then the self-locking elbow body 1 is inserted into the inner wall of the steel pipe body 5, and several balls 1 are squeezed through the outer wall of the self-locking elbow body 1. 0, so that several balls 10 move into several notches 13. When several slots 3 correspond to several circular grooves 9, the sleeve 12 is loosened, and the limit plate 14 is pushed back by the elasticity of the reset spring 8, thereby resetting the sleeve 12. At this time, the inner wall of the limit plate 14 presses against the outer wall of several balls 10, so that the outer walls of several balls 10 are clamped in several slots 3, thereby clamping the self-locking elbow body 1 to the inner wall of the steel pipe body 5, thereby reflecting the convenience and practicality of installation.

[0024] Furthermore, the return spring 8 is movably sleeved on the outer wall of the steel pipe body 5, and a plurality of circular grooves 9 are provided on the outer wall of the steel pipe body 5 near one end. Balls 10 are movably connected in the grooves of the plurality of circular grooves 9, and the outer walls of the plurality of balls 10 are movably engaged in the grooves of the plurality of card slots 3.

[0025] By setting the balls 10, the diameters of several balls 10 are larger than the diameters of several circular grooves 9, so that several balls 10 can be movably clamped in several circular grooves 9 through the outer wall, and part of the area of ​​several balls 10 is clamped in several clamping grooves 3. In fact, a small part of several balls 10 is still clamped in several circular grooves 9, and the same is true for several balls 10 clamped in several notches 13, thereby reflecting the convenience and practicality of connecting the steel pipe body 5 and the self-locking elbow body 1.

[0026] Furthermore, a third sealing ring 11 is fixedly sleeved on one end of the steel pipe body 5, a sleeve 12 is movably sleeved on the outer wall of the steel pipe body 5, a plurality of slots 13 are opened on one end of the inner wall of the sleeve 12, and a limiting plate 14 is fixedly connected to the inner wall of the sleeve 12 near one end.

[0027] By setting the card slot 3, when disassembling the self-locking elbow main body 1 and the steel pipe body 5, the sleeve 12 is moved so that the several notches 13 opened on the inner wall of the sleeve 12 correspond to the several circular grooves 9, and then the self-locking elbow main body 1 is pulled outward, so that the inner side of the several card slots 3 slides with the outer wall of the several balls 10, and the several balls 10 are squeezed into the several notches 13. When the self-locking elbow main body 1 is pulled out, the several balls 10 are reset to the several circular grooves 9. At this time, the sleeve 12 is released and the sleeve 12 is reset by the reset spring 8, thereby reflecting the convenience and practicality of the equipment when disassembling.

[0028] Furthermore, a plurality of limit blocks 15 are fixedly connected to the inner wall of the sleeve 12 near one end, the inner wall of the limit plate 14 corresponds to the plurality of circular grooves 9 , and the inner wall of the limit plate 14 is slidably connected to the outer wall of the steel pipe body 5 .

[0029] By setting the limit blocks 15, several limit blocks 15 are cross-connected with several support blocks 7. When the sleeve 12 is reset, it is convenient for the staff to identify whether the installation is completed by observing whether the several limit blocks 15 are cross-connected with several support blocks 7, thereby reflecting the convenience and practicality of the equipment.

[0030] The working principle of the present invention is as follows: when installing the self-locking elbow body 1 and the steel pipe body 5, one end of the steel pipe body 5 is aligned with one end of the self-locking elbow body 1, so that the steel pipe body 5 is sleeved with one end of the self-locking elbow body 1. During the connection process, the sleeve 12 is first moved toward the direction of the steel pipe body 5, so that the several notches 13 opened on the inner wall of the sleeve 12 correspond to the several circular grooves 9, and then the self-locking elbow body 1 is inserted into the inner wall of the steel pipe body 5, and the several balls 10 are squeezed through the outer wall of the self-locking elbow body 1, so that the several balls are locked. The balls 10 move into the plurality of notches 13. When the plurality of slots 3 correspond to the plurality of circular grooves 9, the sleeve 12 is loosened and the limit plate 14 is pushed back by the elasticity of the reset spring 8, thereby resetting the sleeve 12. At this time, the inner wall of the limit plate 14 presses against the outer wall of the plurality of balls 10, so that the outer wall of the plurality of balls 10 is clamped in the plurality of slots 3, thereby clamping the self-locking elbow body 1 on the inner wall of the steel pipe body 5. The diameter of the plurality of balls 10 is larger than the diameter of the plurality of circular grooves 9, so that the plurality of balls 10 pass through the plurality of circular grooves 9. The outer wall of the self-locking elbow is movably connected to the plurality of circular grooves 9, and a portion of the area of ​​the plurality of balls 10 is connected to the plurality of slots 3. In fact, a small portion of the plurality of balls 10 is connected to the plurality of circular grooves 9, and the same is true for the plurality of balls 10 connected to the plurality of notches 13. When the self-locking elbow body 1 and the steel pipe body 5 are disassembled, the sleeve 12 is moved so that the plurality of notches 13 opened on the inner wall of the sleeve 12 correspond to the plurality of circular grooves 9, and then the self-locking elbow body 1 is pulled outward so that the inner side of the plurality of slots 3 is aligned with the plurality of balls. The outer wall of 10 slides and squeezes several balls 10 into several notches 13. When the self-locking elbow body 1 is pulled out, several balls 10 are reset to several circular grooves 9. At this time, the sleeve 12 is released, and the sleeve 12 is reset by the reset spring 8. Several limit blocks 15 are cross-connected with several support blocks 7. When the sleeve 12 is reset, it is possible to observe whether the several limit blocks 15 are cross-connected with the several support blocks 7, so that the staff can identify whether the installation is completed, thereby reflecting the convenience and practicality of the equipment.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0032] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0033] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A connection structure between a stainless steel pipe and a self-locking elbow device, comprising a self-locking elbow body (1), characterized in that: A first sealing ring (2) is fixedly sleeved on the outer wall of the self-locking elbow body (1) near one end, a plurality of slots (3) are provided on the outer wall of the self-locking elbow body (1) near one end, a second sealing ring (4) is fixedly sleeved on one end of the self-locking elbow body (1), a steel pipe body (5) is movably sleeved on the outer wall of the self-locking elbow body (1) near one end, a limiting ring (6) is fixedly sleeved on the outer wall of the steel pipe body (5), a plurality of support blocks (7) are fixedly connected to one side of the limiting ring (6), and the opposite surfaces of the plurality of support blocks (7) are fixedly connected to the outer wall of the steel pipe body (5), and a reset spring (8) is fixedly connected to one side of the limiting ring (6).

2. The connection structure of a stainless steel pipe and a self-locking elbow device according to claim 1, characterized in that: The return spring (8) is movably sleeved on the outer wall of the steel pipe body (5), and a plurality of circular grooves (9) are provided on the outer wall of the steel pipe body (5) near one end.

3. The connection structure of a stainless steel pipe and a self-locking elbow device according to claim 2, characterized in that: The grooves of the plurality of circular grooves (9) are all movably connected with balls (10), and the outer walls of the plurality of balls (10) are movably engaged with the grooves of the plurality of clamping grooves (3).

4. The connection structure of a stainless steel pipe and a self-locking elbow device according to claim 3, characterized in that: One end of the steel pipe body (5) is fixedly sleeved with a third sealing ring (11), and the outer wall of the steel pipe body (5) is movably sleeved with a sleeve (12).

5. The connection structure of a stainless steel pipe and a self-locking elbow device according to claim 4, characterized in that: A plurality of notches (13) are provided on one end of the inner wall of the sleeve (12), and a limiting plate (14) is fixedly connected to the inner wall of the sleeve (12) near one end.

6. The connection structure of a stainless steel pipe and a self-locking elbow device according to claim 5, characterized in that: A plurality of limiting blocks (15) are fixedly connected to the inner wall of the sleeve (12) near one end, and the inner wall of the limiting plate (14) corresponds to the plurality of circular grooves (9).

7. The connection structure of a stainless steel pipe and a self-locking elbow device according to claim 6, characterized in that: The inner wall of the limiting plate (14) is slidably connected to the outer wall of the steel pipe body (5).

Images