Stainless steel pipe connecting piece

Abstract

The utility model is suitable for the technical field of stainless steel pipes, and provides a stainless steel pipe connecting piece which comprises a connecting mechanism, the connecting mechanism comprises a connecting pipe, the two ends of the connecting pipe are fixedly connected with connecting cylinders, the two connecting cylinders are both in threaded connection with two locking bolts, and the lower ends of the locking bolts are provided with arc-shaped clamping plates. The two arc-shaped clamping plates abut against the outer walls of the first pipeline and the second pipeline, then the pipelines are fixed, the contact area of the arc-shaped clamping plates is larger, and the first pipeline and the second pipeline can be prevented from being damaged; meanwhile, a plurality of fixing pieces with external threads are installed on the side walls of the two connecting cylinders, elastic pieces are fixedly connected to the fixing pieces, the locking ring is in threaded connection with the multiple fixing pieces, the multiple elastic pieces are extruded by rotating the locking ring, the multiple elastic pieces are made to get close to one another, and then the first pipeline and the second pipeline are fixed; the firmness of the first pipeline and the second pipeline is improved, and the safety is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of stainless steel pipes, and in particular relates to a stainless steel pipe connector. Background Art

[0002] In the current field of stainless steel pipe technology, stainless steel pipe is a hollow long round steel, which is widely used in industrial pipelines such as petroleum, chemical, medical, food, light industry, mechanical instruments, and mechanical structural components. When the length of the stainless steel pipe needs to be extended, multiple stainless steel pipes need to be connected, and the commonly used method is welding. However, when stainless steel pipes are welded, the thermal expansion coefficient of stainless steel is higher than that of ordinary carbon steel. In addition, it is easily deformed due to the influence of heat from different directions during welding, which increases the welding cost of stainless steel. Therefore, stainless steel pipe connectors are required.

[0003] The utility model patent with the authorization announcement number CN207848682U discloses a stainless steel pipe connector, including a connector body, which includes an outer tube and an inner ring; an annular protrusion is provided in the middle of the inner wall of the outer tube, and the outer tube wall is divided into a left end and a right end, and the left end and the right end are respectively provided with screw holes, and bolts are correspondingly provided in the screw holes; the inner ring is a sealing ring, including a left sealing ring and a right sealing ring, and a groove is provided on the inner surface of the sealing ring. The stainless steel pipe connector provided by the utility model can firmly connect stainless steel pipes together, and the design of the groove on the annular protrusion makes it easy to determine and fix the position of the stainless steel pipe, and then use symmetrical bolts to lock the connector and the stainless steel pipe, so that the connection is more stable, and at the same time, the tubular connector is similar in shape and size to the stainless steel pipe, so that the overall pipeline after connection is clearer and more beautiful.

[0004] However, the above patent has the following shortcomings:

[0005] In the above patent, the connector and the stainless steel pipe are locked by symmetrical bolts. However, the bolts are used to abut against the outer wall of the stainless steel pipe, and the contact area is small. Long-term abutment against the stainless steel pipe can easily damage the outer wall of the stainless steel pipe, reducing the service life of the stainless steel pipe. At the same time, only bolts are used for fixing, which has poor firmness and is prone to loosening. Utility Model Content

[0006] The utility model provides a stainless steel pipe connector, aiming to solve the problem mentioned in the above background that bolts are used to abut against the outer wall of the stainless steel pipe, the contact area is small, and the outer wall of the stainless steel pipe is easily damaged for a long time, which reduces the service life of the stainless steel pipe. The problem that only bolts are used for fixing has poor firmness and is prone to loosening.

[0007] The utility model is implemented as follows: a stainless steel pipe connector includes a connecting mechanism, wherein the connecting mechanism includes a connecting pipe, step grooves are provided on both sides of the outer wall of the connecting pipe, and both ends of the connecting pipe are connected to connecting tubes;

[0008] A locking mechanism, which is used to lock the pipeline, and two of the locking mechanisms are fixedly mounted on the outer walls of the two connecting tubes;

[0009] Pipe 1, the pipe 1 passes through the corresponding connecting tube and then plugs into the corresponding step groove;

[0010] Pipe 2, the pipe 2 passes through the corresponding connecting tube and is inserted into the corresponding step groove.

[0011] Preferably, the locking mechanism comprises a plurality of arc-shaped fixing plates, the plurality of fixing plates are fixedly connected to the outer wall of the connecting tube, and the fixing plates are evenly distributed on the outer wall of the connecting tube;

[0012] An arc-shaped elastic sheet is fixedly mounted on the fixing sheet, and threads are arranged on the outer surfaces of the fixing sheet and the elastic sheet. In this solution, gaps are provided between the multiple elastic sheets, so that the multiple elastic sheets can be close to each other.

[0013] Preferably, the outer surface of the fixing plate is threadedly connected with a locking ring, and the outer surface of the locking ring is provided with anti-slip grooves;

[0014] A gasket is provided on the inner wall of the fixing plate; in this scheme, the locking ring is rotated to make the locking ring close to the multiple elastic plates, thereby squeezing the multiple elastic plates so that the multiple elastic plates are close to each other, and then the multiple elastic plates are used to contact the outer walls of pipe one and pipe two to fix pipe one and pipe two.

[0015] Preferably, the connecting tube is threadedly connected with two locking bolts, and the two locking bolts are arranged at the upper and lower ends of the connecting tube;

[0016] A screw head is installed at the upper end of the locking bolt, and an arc-shaped clamping plate is rotatably installed at the lower end of the locking bolt, and the clamping plate is placed inside the connecting tube; in this scheme, the locking bolt is driven to rotate by rotating the screw head, thereby adjusting the longitudinal movement of the two clamping plates, and the clamping plates are used to clamp the outer walls of pipes one and two. The arc-shaped clamping plate has a larger contact area, and damage to pipes one and two can be prevented when fixing pipes one and two.

[0017] Preferably, the inner walls of the two connecting tubes are both provided with an annular groove, and a sealing gasket is embedded in the annular groove;

[0018] A connecting spring is arranged in the annular groove, one end of the connecting spring is fixedly connected to the connecting tube, and the other end is fixedly connected to the sealing gasket; in this scheme, the connecting spring contacts the sealing gasket, so that the sealing gasket wraps the outer walls of pipe one and pipe two, thereby improving the sealing performance of pipe one and pipe two.

[0019] Preferably, sealing rings are embedded in the inner walls of the two connecting tubes, and the sealing rings abut against the outer wall of the connecting pipe; in this solution, the sealing rings further improve the sealing performance of pipeline one and pipeline two.

[0020] Compared with the prior art, the utility model has the following beneficial effects: a stainless steel pipe connector of the utility model,

[0021] 1. Both ends of the connecting pipe are fixedly connected with connecting tubes. Two locking bolts are threadedly connected to the upper ends of the two connecting tubes. The lower ends of the locking bolts are installed with arc-shaped clamping plates. The two arc-shaped clamping plates are against the outer walls of pipes one and two, thereby fixing the pipes. The arc-shaped clamping plates have a larger contact area, which can prevent damage to pipes one and two.

[0022] 2. Multiple fixing plates with external threads are installed on the side walls of the two connecting tubes, and elastic plates are fixedly connected to the fixing plates, and multiple fixing plates are threadedly connected to the locking ring. The multiple elastic plates are squeezed by rotating the locking ring to make the multiple elastic plates close to each other, thereby fixing the pipe 1 and the pipe 2, improving the firmness of the pipe 1 and the pipe 2, and having higher safety;

[0023] 3. An annular groove is provided inside the two connecting tubes, and a sealing gasket is embedded inside the annular groove, thereby improving the sealing performance of the connecting tube 1 and the connecting tube 2, and preventing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The schematic diagram of the overall structure of this utility model

[0025] Figure 2 The main view of this utility model

[0026] Figure 3 Practical Figure 1 Enlarged view of point A in the middle

[0027] Figure 4 This is a side view of the practical connecting tube

[0028] Figure 5 The schematic diagram of the structure of the practical elastic sheet is as follows:

[0029] In the figure:

[0030] 1. Connecting mechanism; 11. Connecting tube; 111. Sealing ring; 112. Annular groove; 12. Connecting tube; 121. Step groove; 13. Connecting spring; 131. Sealing pad; 14. Locking bolt; 141. Screw head; 142. Clamping plate;

[0031] 2. Locking mechanism; 21. Fixing plate; 211. Elastic plate; 22. Gasket; 23. Locking ring; 231. Anti-slip pattern;

[0032] 3. Pipeline 1;

[0033] 4. Pipeline 2. DETAILED DESCRIPTION

[0034] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0035] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0036] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See also Figure 1-5 The utility model provides a technical solution: a stainless steel pipe connector, including a connecting mechanism 1, the connecting mechanism 1 includes a connecting pipe 12, step grooves 121 are opened on the outer walls of both sides of the connecting pipe 12, both ends of the connecting pipe 12 are connected to connecting tubes 11, pipe 1 3 passes through the corresponding connecting tube 11 and is plugged into the corresponding step groove 121, pipe 2 4 passes through the corresponding connecting tube 11 and is plugged into the corresponding step groove 121, the inner walls of the two connecting tubes 11 are embedded with sealing rings 111, and the sealing rings 111 resist the outer wall of the connecting pipe 12.

[0040] Among them, both pipe 1 3 and pipe 2 4 are inserted into the step groove 121, which is convenient for installing pipe 1 3 and pipe 2 4 so that they can be installed in place, and the sealing ring 111 improves the sealing performance between pipe 1 3 and pipe 2 4 and the connecting pipe 12.

[0041] The locking mechanism 2 is used to lock the pipeline. The two locking mechanisms 2 are fixedly installed on the outer walls of the two connecting tubes 11. The locking mechanism 2 includes a plurality of arc-shaped fixing plates 21. The plurality of fixing plates 21 are fixedly connected to the outer wall of the connecting tube 11, and the fixing plates 21 are evenly distributed on the outer wall of the connecting tube 11. An arc-shaped elastic plate 211 is fixedly installed on the fixing plate 21. The outer surfaces of the fixing plate 21 and the elastic plate 211 are both provided with threads. The outer surface of the fixing plate 21 is threadedly connected with a locking ring 23. The outer surface of the locking ring 23 is provided with anti-slip grooves 231. The inner wall of the fixing plate 21 is provided with a gasket 22.

[0042] Among them, the gasket 22 and the elastic sheet 211 are placed on the outer walls of pipe one 3 and pipe two 4, and the locking ring 23 is rotated to make the locking ring 23 contact the outer walls of multiple elastic sheets 211, so that the multiple elastic sheets 211 are close to each other, and then squeeze the outer walls of pipe one 3 and pipe two 4. At the same time, the gasket 22 can be supported by plastic. The gasket 22 is placed on the outer surface of pipe one 3 and pipe two 4 to prevent scratches on the outer walls of pipe one 3 and pipe two 4.

[0043] Two locking bolts 14 are threadedly connected to the connecting tube 11. The two locking bolts 14 are arranged at the upper and lower ends of the connecting tube 11. A screw head 141 is installed at the upper end of the locking bolt 14, and an arc-shaped clamping plate 142 is rotatably installed at the lower end of the locking bolt 14. The clamping plate 142 is placed inside the connecting tube 11.

[0044] Furthermore, the screw head 141 can be a hexagonal nut, and the locking bolt 14 can be rotated by rotating the screw head 141 to adjust the position of the clamping plate 142 so that both pipe 1 3 and pipe 2 4 are in contact with the clamping plate 142. The arc-shaped clamping plate 142 has a larger contact area, which is convenient for fixing pipe 1 3 and pipe 2 4.

[0045] The inner walls of the two connecting tubes 11 are both provided with an annular groove 112 , in which a sealing gasket 131 is embedded. A connecting spring 13 is provided in the annular groove 112 , and one end of the connecting spring 13 is fixedly connected to the connecting tube 11 , and the other end is fixedly connected to the sealing gasket 131 .

[0046] Specifically, a plurality of connection springs 13 may be installed in the annular groove 112 , and the plurality of connection springs 13 may abut against the sealing gasket 131 , so that the sealing gasket 131 is closely attached to the outer walls of the pipe 1 3 and the pipe 2 4 , thereby improving the sealing performance of the connection tube 11 .

[0047] The working principle and use process of this utility model: please refer to Figure 1-5 , pipe 1 3 and pipe 2 4 are both inserted into the step groove 121, which is convenient for installing pipe 1 3 and pipe 2 4 and installing them in place. Multiple connecting springs 13 can be installed in the annular groove 112, and the multiple connecting springs 13 are used to resist the sealing gasket 131, so that the sealing gasket 131 is close to the outer wall of pipe 1 3 and pipe 2 4. The locking bolt 14 is driven to rotate by rotating the screw head 141, so as to adjust the position of the clamping plate 142, so that pipe 1 3 and pipe 2 4 are both in contact with the clamping plate 142. The arc-shaped clamping plate 142 has a larger contact area, which is convenient for fixing pipe 1 3 and pipe 2 4. The locking ring 23 is rotated to make the locking ring 23 resist the outer wall of the multiple elastic sheets 211, so that the multiple elastic sheets 211 are close to each other, thereby squeezing the outer wall of pipe 1 3 and pipe 2 4. At the same time, the gasket 22 can be supported by plastic, and the gasket 22 is placed on the outer surface of pipe 1 3 and pipe 2 4 to prevent scratching the outer wall of pipe 1 3 and pipe 2 4.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stainless steel pipe connector, characterized in that: The invention comprises a connecting mechanism (1), wherein the connecting mechanism (1) comprises a connecting pipe (12), the outer walls of both sides of the connecting pipe (12) are provided with step grooves (121), and both ends of the connecting pipe (12) are connected to connecting tubes (11); A locking mechanism (2) for locking the pipeline, wherein the two locking mechanisms (2) are fixedly mounted on the outer walls of the two connecting tubes (11); Pipe 1 (3), the pipe 1 (3) passes through the corresponding connecting tube (11) and then plugs into the corresponding step groove (121); Pipe 2 (4), the pipe 2 (4) passes through the corresponding connecting tube (11) and then is plugged into the corresponding step groove (121).

2. A stainless steel pipe connector according to claim 1, characterized in that: The locking mechanism (2) comprises a plurality of arc-shaped fixing plates (21), the plurality of fixing plates (21) being fixedly connected to the outer wall of the connecting tube (11), and the fixing plates (21) are evenly distributed on the outer wall of the connecting tube (11); An arc-shaped elastic sheet (211) is fixedly mounted on the fixing sheet (21), and outer surfaces of the fixing sheet (21) and the elastic sheet (211) are both provided with threads.

3. A stainless steel pipe connector as claimed in claim 2, characterized in that: The outer surface of the fixing plate (21) is threadedly connected with a locking ring (23), and the outer surface of the locking ring (23) is provided with anti-slip grooves (231); A gasket (22) is provided on the inner wall of the fixing plate (21).

4. A stainless steel pipe connector according to claim 1, characterized in that: The connecting tube (11) is threadedly connected with two locking bolts (14), and the two locking bolts (14) are arranged at the upper and lower ends of the connecting tube (11); The upper end of the locking bolt (14) is mounted with a screw head (141), and the lower end of the locking bolt (14) is rotatably mounted with an arc-shaped clamping plate (142), and the clamping plate (142) is placed inside the connecting tube (11).

5. A stainless steel pipe connector according to claim 1, characterized in that: The inner walls of the two connecting tubes (11) are each provided with an annular groove (112), and a sealing gasket (131) is embedded in the annular groove (112); A connecting spring (13) is arranged in the annular groove (112); one end of the connecting spring (13) is fixedly connected to the connecting tube (11), and the other end of the connecting spring (13) is fixedly connected to the sealing gasket (131).

6. A stainless steel pipe connector according to claim 1, characterized in that: The inner walls of the two connecting tubes (11) are embedded with sealing rings (111), and the sealing rings (111) abut against the outer wall of the connecting tube (12).

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