Stainless steel reducing straight tee

Abstract

The utility model belongs to pipeline connection technical field, concretely relates to a stainless steel reducing straight through, including first half straight through and second half straight through that are mirror image each other, one group of connecting plates are integrally formed in first half straight through and second half straight through both sides, are provided with connecting structure on connecting plate, first half straight through and second half straight through are formed through connecting plate cooperation connecting structure and are spliced and form reducing straight through structure, when first half straight through and second half straight through splice, the section of rubber capsule located outside accommodating groove is just inserted in sealing groove, when fluid enters reducing straight through structure, fluid can enter rubber capsule through through -hole and extrude rubber capsule inflation, make rubber capsule outer wall and sealing groove inner wall closely fit, and the greater fluid pressure, rubber capsule and sealing groove inner wall fit more closely, realize the sealing of the connecting place of first half straight through and second half straight through, avoid the problem that fluid is easy to leak from the connecting place of first half straight through and second half straight through when fluid pressure is bigger as far as possible.

Description

Technical Field

[0001] This utility model belongs to the field of pipe connection technology, specifically relating to a stainless steel reducing straight connector. Background Technology

[0002] A reducing straight-through fitting is a pipe fitting used in industrial piping systems to connect pipes of different diameters. Its branch pipes have different diameters than the main pipes and are commonly found in production pipelines in industries such as petroleum, chemical, and pharmaceutical.

[0003] Existing reducing straight connectors typically use two semi-circular tubular joint structures. The inner diameters of both ends of the semi-circular tubular joint structure are set according to the outer diameter of the pipe. During installation, the two semi-circular tubular joint structures are fitted onto the adjacent ends of two pipes with different diameters, and the two semi-circular tubular joint structures are connected by a connecting structure to connect pipes of different diameters. When the fluid pressure in the pipe is high, the fluid may leak from the connection point of the two semi-circular tubular joint structures, affecting the sealing performance of the pipe connection. Utility Model Content

[0004] The purpose of this utility model is to provide a stainless steel reducing straight pipe with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A stainless steel reducing straight-through tube includes a first semi-straight-through tube and a second semi-straight-through tube arranged mirror images of each other. A set of connecting plates is integrally formed on both sides of the first and second semi-straight-through tubes. A connecting structure is provided on the connecting plates. The first and second semi-straight-through tubes are assembled into a reducing straight-through tube structure through the connecting plates and the connecting structure. A sealing groove is formed on the side of one set of connecting plates closest to the inside of the reducing straight-through tube structure, and a receiving groove is formed on the side of the other set of connecting plates closest to the inside of the reducing straight-through tube structure. A through hole is formed on the inner wall of the receiving groove, and a rubber bladder is fixedly connected inside the receiving groove. The rubber bladder communicates with the inner cavity of the reducing straight-through tube structure through the through hole.

[0007] As a further optimization of this utility model, the connection structure includes a connection hole on the connection plate, an external bolt passing through the connection hole, and the first semi-through and the second semi-through being connected and fixed by the external bolt and the external nut.

[0008] As a further optimization of this utility model, one end of the reducing straight-through structure forms a large pipe interface, and the other end of the reducing straight-through structure forms a small pipe interface. The inner diameter of the large pipe interface and the small pipe interface are set according to the outer diameter of the two pipe ends to be connected.

[0009] As a further optimization of this utility model, a semi-circular annular sealing gasket is fixedly installed on the inner wall of both the large pipe interface and the small pipe interface.

[0010] As a further optimization of this utility model, the size of the rubber bladder is set according to the inner cavity size of the sealing groove, and the thickness of the section of the rubber bladder located outside the receiving groove is equal to the inner cavity depth of the sealing groove.

[0011] As a further optimization of this utility model, the middle sections of the first semi-straight passage and the second semi-straight passage both protrude towards the differential straight passage structure to form flanges. After the first semi-straight passage and the second semi-straight passage are joined together, the two flanges are connected to form a ring structure, and the inner diameter of the flange is equal to the inner diameter of the small pipe interface.

[0012] As a further optimization of this utility model, multiple ribs are integrally formed on the outer walls of both the large pipe interface and the small pipe interface, and the multiple ribs are equidistantly distributed around the central axis of the steel differential straight-through structure.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. When the first and second semi-straight passages are spliced ​​together, the section of the rubber bladder located outside the receiving groove is inserted into the sealing groove. When the fluid enters the reducing straight passage structure, the fluid can enter the rubber bladder through the through hole and compress the rubber bladder to expand, so that the outer wall of the rubber bladder is tightly fitted with the inner wall of the sealing groove. The greater the fluid pressure, the tighter the fit between the rubber bladder and the inner wall of the sealing groove, thus sealing the connection between the first and second semi-straight passages and minimizing the problem of fluid leakage from the connection between the first and second semi-straight passages when the fluid pressure is high.

[0015] 2. Both the first and second semi-straight passages have semi-circular flanges. When the first and second semi-straight passages are joined together, the two flanges form a ring structure. When fluid enters from the large pipe interface, the flanges can block the instantaneous impact of the fluid entering, thus minimizing the problem of the external pipe connected to the small pipe interface being easily displaced or detached due to the instantaneous impact of the water flow. Attached Figure Description

[0016] Figure 1 This is an exploded view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the first semi-through part of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the second semi-through part of this utility model;

[0019] Figure 4This is a schematic diagram showing the location of the through hole in this utility model.

[0020] In the diagram: 1. First semi-through; 2. Second semi-through; 3. Connecting plate; 4. Connecting hole; 5. Large pipe interface; 6. Small pipe interface; 7. Sealing gasket; 8. Sealing groove; 9. Receiving groove; 10. Through hole; 11. Rubber bladder; 12. Rib; 13. Flange. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Example

[0023] like Figure 1 - Figure 4 As shown, a stainless steel reducing straight-through tube includes a first half-straight-through tube 1 and a second half-straight-through tube 2 that are mirror images of each other. A set of connecting plates 3 are integrally formed on both sides of the first half-straight-through tube 1 and the second half-straight-through tube 2. The connecting plates 3 are provided with connecting holes 4, and external bolts are inserted into the connecting holes 4. The first half-straight-through tube 1 and the second half-straight-through tube 2 are connected and fixed by the external bolts and external nuts to form a reducing straight-through tube structure.

[0024] One end of the reducing straight-through structure forms a large pipe interface 5, and the other end forms a small pipe interface 6. The inner diameters of the large pipe interface 5 and the small pipe interface 6 are set according to the outer diameters of the two pipe ends to be connected, so that the adjacent ends of two pipes with different diameters can be connected through the reducing straight-through structure.

[0025] Both the large pipe interface 5 and the small pipe interface 6 are fixedly installed with a semi-circular ring-shaped sealing gasket 7. When the first semi-straight pipe 1 and the second semi-straight pipe 2 are joined together, the semi-circular ring-shaped sealing gasket 7 can be fitted onto the pipe end to seal the connection between the pipe end and the reducing straight pipe structure, thereby improving the sealing performance of the connection between the pipe end and the reducing straight pipe structure.

[0026] One set of connecting plates 3 has a sealing groove 8 on one side near the inside of the reducing straight-through structure, and another set of connecting plates 3 has a receiving groove 9 on one side near the inside of the reducing straight-through structure. A through hole 10 is provided on the inner wall of the receiving groove 9. A rubber bladder 11 is also fixedly connected inside the receiving groove 9. The size of the rubber bladder 11 is set according to the size of the inner cavity of the sealing groove 8. The thickness of the section of the rubber bladder 11 located outside the receiving groove 9 is equal to the inner cavity depth of the sealing groove 8. The rubber bladder 11 communicates with the inner cavity of the reducing straight-through structure through the through hole 10.

[0027] After the first semi-straight passage 1 and the second semi-straight passage 2 are spliced ​​together, the section of the rubber bladder 11 located outside the receiving groove 9 is inserted into the sealing groove 8. When the fluid enters the reducing straight passage structure, under pressure, the fluid can enter the rubber bladder 11 through the through hole 10 and squeeze the rubber bladder 11 to expand, so that the outer wall of the rubber bladder 11 is tightly fitted with the inner wall of the sealing groove 8. The greater the fluid pressure in the reducing straight passage structure, the tighter the rubber bladder 11 is fitted with the inner wall of the sealing groove 8, thereby sealing the connection between the first semi-straight passage 1 and the second semi-straight passage 2 and avoiding the problem of fluid leakage from the connection between the first semi-straight passage 1 and the second semi-straight passage 2 when the fluid pressure is high.

[0028] Multiple ribs 12 are integrally formed on the outer walls of both the large pipe interface 5 and the small pipe interface 6. The multiple ribs 12 are equidistantly distributed around the central axis of the differential straight-through structure. The ribs 12 are set to reinforce the outer walls of the large pipe interface 5 and the small pipe interface 6, so as to avoid deformation of the large pipe interface 5 and the small pipe interface 6 under water pressure as much as possible.

[0029] The middle sections of the first semi-straight passage 1 and the second semi-straight passage 2 both protrude towards the reducing straight passage structure to form flanges 13. After the first semi-straight passage 1 and the second semi-straight passage 2 are joined together, the two flanges 13 are connected to form a ring structure. The inner diameter of the flange 13 is equal to the inner diameter of the small pipe interface 6. When the fluid enters the reducing straight passage structure from the large pipe interface 5, it will be blocked by the ring structure formed by the flanges 13, so as to reduce the impact of the fluid on the pipe opening connected in the small pipe interface 6 and improve the stability of the connection between the external pipe and the small pipe interface 6.

[0030] It should be noted that, in use, this type of stainless steel reducing straight connector involves first fitting the first half-straight connector 1 and the second half-straight connector 2 onto both sides of the external pipe to be connected, and then fixing the first half-straight connector 1 and the second half-straight connector 2 with external bolts and nuts in connection holes 4. The large pipe interface 5 and the small pipe interface 6 formed at both ends of the reducing straight connector structure are used to connect the adjacent ends of two pipes of different diameters. After the first half-straight connector 1 and the second half-straight connector 2 are joined, the section of the rubber bladder 11 located outside the receiving groove 9 is precisely inserted into the sealed... Inside the sealing groove 8, when fluid enters the reducing straight-through structure, under pressure, the fluid can enter the rubber bladder 11 through the through hole 10 and compress the rubber bladder 11 to expand, so that the outer wall of the rubber bladder 11 is tightly fitted with the inner wall of the sealing groove 8. The greater the fluid pressure inside the reducing straight-through structure, the tighter the rubber bladder 11 is fitted with the inner wall of the sealing groove 8, thereby sealing the connection between the first semi-straight-through 1 and the second semi-straight-through 2 and minimizing the problem of fluid leakage from the connection between the first semi-straight-through 1 and the second semi-straight-through 2 when the fluid pressure is high.

[0031] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A stainless steel reducing straight-through tube, comprising a first semi-straight-through tube (1) and a second semi-straight-through tube (2) arranged mirror images of each other, wherein a set of connecting plates (3) are integrally formed on both sides of the first semi-straight-through tube (1) and the second semi-straight-through tube (2), wherein a connecting structure is provided on the connecting plate (3), and the first semi-straight-through tube (1) and the second semi-straight-through tube (2) are joined together by the connecting plate (3) and the connecting structure to form a reducing straight-through tube structure, characterized in that: One set of connecting plates (3) has a sealing groove (8) on one side near the inside of the reducing straight-through structure, and the other set of connecting plates (3) has a receiving groove (9) on one side near the inside of the reducing straight-through structure. A through hole (10) is provided on the inner wall of the receiving groove (9). A rubber bladder (11) is also fixedly connected in the receiving groove (9). The rubber bladder (11) communicates with the inner cavity of the reducing straight-through structure through the through hole (10).

2. The stainless steel reducing straight pipe according to claim 1, characterized in that: The connection structure includes a connection hole (4) on the connection plate (3), an external bolt passing through the connection hole (4), and the first semi-through (1) and the second semi-through (2) being connected and fixed by the external bolt and the external nut.

3. A stainless steel reducing straight-through pipe according to claim 2, characterized in that: One end of the reducing straight-through structure forms a large pipe interface (5), and the other end of the reducing straight-through structure forms a small pipe interface (6). The inner diameter of the large pipe interface (5) and the small pipe interface (6) are set according to the outer diameter of the two pipe ends to be connected.

4. A stainless steel reducing straight-through pipe according to claim 3, characterized in that: Both the large pipe interface (5) and the small pipe interface (6) have a semi-circular sealing gasket (7) fixedly installed on their inner walls.

5. A stainless steel reducing straight-through pipe according to claim 4, characterized in that: The size of the rubber bladder (11) is set according to the inner cavity size of the sealing groove (8), and the thickness of the section of the rubber bladder (11) located outside the receiving groove (9) is equal to the inner cavity depth of the sealing groove (8).

6. A stainless steel reducing straight-through pipe according to claim 3, characterized in that: The middle sections of the first semi-straight passage (1) and the second semi-straight passage (2) both protrude towards the differential straight passage structure to form flanges (13). After the first semi-straight passage (1) and the second semi-straight passage (2) are joined together, the two flanges (13) are connected to form a ring structure. The inner diameter of the flange (13) is equal to the inner diameter of the small pipe interface (6).

7. A stainless steel reducing straight-through pipe according to claim 3, characterized in that: Multiple ribs (12) are integrally formed on the outer walls of both the large pipe interface (5) and the small pipe interface (6), and the multiple ribs (12) are equidistantly distributed around the central axis of the steel differential straight-through structure.

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