A kind of pneumatic servo control experiment pipe butt joint component

Abstract

The utility model discloses a kind of pipeline butt joint components for pneumatic servo control experiment, including outside butt joint sleeve and inside butt joint sleeve, and the inner ring of inside butt joint sleeve is threadedly fitted on the surface of gas pipe one end. The pipeline butt joint component for pneumatic servo control experiment, by inside butt joint sleeve and gas pipe threadedly fitted each other fixed, outside butt joint sleeve and communicating pipe threadedly fitted each other fixed, again cooperation tightly closed rotating sleeve pipe and inside butt joint sleeve outer surface rotating thread butt joint, make its gas pipe and communicating pipe's butt joint place form horizontal butt joint pressure, and synchronous extrusion gasket ring, make its gas pipe and communicating pipe's butt joint more sealed, again by fastening bolt thread fastening of outer positioning buckle pipe and inner positioning buckle pipe, it is carried out secondary fixed position, to effectively guarantee stable sealing butt joint, while, guarantee its internal butt joint place same inner diameter, do not affect airflow normal circulation, make its compressor gas pipe butt joint more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic servo control device technology, specifically a pipeline connection component for pneumatic servo control experiments. Background Technology

[0002] With the development of microprocessor and semiconductor technologies, pneumatic servo systems have become increasingly advantageous in terms of precision, efficiency, and miniaturization. As a result, pneumatic servo control systems are being used more and more widely in industrial production. Consequently, students' learning and training in servo control systems are also constantly improving. Therefore, experimental learning related to pneumatic servo control is becoming increasingly important.

[0003] Currently, in existing pneumatic servo control experiments, the connection stability between the compressor air supply pipe and the connecting pipe used in the experiment is poor, requiring frequent inspection and maintenance. Therefore, the connection of the pipes in the experiment has been continuously improved and innovated. For example, Chinese patent CN213598785U discloses a pneumatic servo control device that inserts a circular tube into the compressor air supply pipe and uses an innovative structure for cooperation. Although the circular tube can enhance the stability of the connection of the connecting pipe, the insertion of the circular tube changes the diameter of the pipe connection, which directly causes changes in the gas flow speed and pressure. When gas enters the smaller diameter pipe from the larger diameter air supply pipe, the gas flow resistance is easily increased, which may lead to energy loss and affect the accuracy of the data.

[0004] Even though Chinese patent CN220828626U discloses a pneumatic servo control device that successfully solves the problem of stable connection between the compressor's air supply pipe and the experimental connecting pipe with the same inner diameter, the connection method in this patent has two drawbacks in practical use, making it unusable in actual applications. In its innovative structure, four screws 10 are threaded into the outer surface of the first mounting ring 4, and the ends of the screws 10 are inserted into the pre-drilled holes in the ring 8. Firstly, because the connection edges of the air supply pipe body 2, the positioning pipe 6, and the first sealing gasket 7 are all horizontal, even if the edges of the air supply pipe body 2 and the positioning pipe 6 can be completely sealed and fixed, there is still a certain gap between the edges of the positioning pipe 6 and the first sealing gasket 7. This requires horizontal pressure to compress the first sealing gasket. A sealing gasket 7 is used to seal the joint. However, this connection method does not have a pressure structure in the horizontal direction. It is only limited by the screw 10 in the direction of the vertical center of the gas pipe body 2, which is equivalent to a snap-fit ​​in the vertical direction. The first sealing gasket 7 is not subjected to any pressure to strengthen the seal in the horizontal direction. Therefore, even if this connection method can ensure the stable connection of the connecting pipes with the same inner diameter, air leakage will occur in actual use. Secondly, the gas pipe end of the compressors in actual mass production is not fixedly equipped with a positioning pipe 6 or a first mounting ring 4, and the joint of the connecting pipe is not fixedly equipped with a second mounting ring 5. All compressor gas pipe ends and connecting pipes on the market are simple single pipe ends, which does not match the actual situation on the market. Even if they are produced according to the requirements, the cost is high and difficult to estimate, and it is not practical in actual use.

[0005] Therefore, in order to address the above problems, this application has invented a pipeline connection component for pneumatic servo control experiments, which effectively ensures that the compressor air supply pipe and the experimental connecting pipe are stably and sealed, while also ensuring that their internal connection points have the same inner diameter, making the connection between the compressor air supply pipe and the experimental pipe more practical, stable and reliable. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a pipeline connection component for pneumatic servo control experiments, which solves the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a pipeline docking component for pneumatic servo control experiments, comprising an outer docking sleeve and an inner docking sleeve. The inner thread of the inner docking sleeve is fitted onto the surface of one end of a gas supply pipe. The other end of the gas supply pipe is inserted into the interior of a compressor and communicates with the compressor's gas inlet. The inner thread of the outer docking sleeve is fitted onto the surface of one end of a connecting pipe. A tight-fitting rotating sleeve is rotatably connected to the left side of the outer docking sleeve. The inner ring of the tight-fitting rotating sleeve is threaded onto the surface of the inner docking sleeve. A sealing gasket is provided between the gas supply pipe and the connecting pipe. The inner diameter of the gasket is the same as the inner diameter of the gas supply pipe and the connecting pipe. The left side of the outer docking sleeve is provided with an outer annular groove for use with the sealing gasket, and the right side of the inner docking sleeve is provided with an inner annular groove for use with the sealing gasket. The two sides of the sealing gasket are respectively pressed into contact with the inner walls of the inner and outer docking sleeves. An inner positioning buckle is fixedly provided on the left side of the inner docking sleeve, and an outer positioning buckle is fixedly provided on the right side of the outer docking sleeve. Four fastening threaded holes are equally spaced on the annular outer surfaces of the outer and inner positioning buckles, and fastening bolts are inserted through the fastening threaded holes.

[0010] Preferably, the inner mating sleeve has two threaded slots in the right annular groove, and a positioning bolt is inserted into the threaded slot. The sealing gasket ring has two positioning holes for use with the positioning bolt. The two positioning holes are symmetrically distributed about the axis of the sealing gasket ring. The outer mating sleeve has an annular groove for use with the positioning bolt in the outer annular groove.

[0011] Preferably, the positioning bolt passes through the positioning hole on the sealing gasket ring, and its end is inserted into the mating threaded slot of the inner mating sleeve, and the surface of the positioning bolt is threadedly connected to the inner wall of the sealing gasket ring and the inner mating sleeve.

[0012] Preferably, the end of the fastening bolt on the inner positioning buckle tube is in contact with the outer surface of the gas transmission pipe, and the end of the fastening bolt on the outer positioning buckle tube is in contact with the surface of the connecting pipe. The bolt head has a cross groove.

[0013] (III) Beneficial Effects

[0014] This utility model provides a pipeline connection component for pneumatic servo control experiments. It has the following beneficial effects:

[0015] (1) The pneumatic servo control experimental pipeline docking component fixes the inner docking sleeve to the gas pipe by threading it onto the gas pipe's docking surface, and fixes the outer docking sleeve to the connecting pipe's docking surface by threading it onto the connecting pipe. A sealing gasket is installed in the inner annular groove on the outer side of the inner docking sleeve, ensuring a sealing gasket connection between the gas pipe and the connecting pipe. Then, a closed rotating sleeve is threadedly connected to the outer surface of the inner docking sleeve. Through the threaded expansion and contraction principle of the inner docking sleeve within the closed rotating sleeve, both the inner and outer docking sleeves are pulled inwards synchronously. The side-extrusion butt joint installation creates horizontal pressure at the joint of the gas supply pipe and the connecting pipe during the extrusion process, while simultaneously compressing the sealing gasket ring to ensure a tighter seal and prevent gas leakage. Then, the outer and inner positioning sleeves are tightened with threaded bolts, providing a secondary fixation for the outer and inner joint sleeves. This effectively ensures a stable and sealed connection between the compressor's gas supply pipe and the experimental connecting pipe, while also maintaining the same inner diameter at the joint, thus not affecting normal airflow. This makes the connection between the compressor's gas supply pipe and the experimental connecting pipe more practical, stable, and reliable. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 This is a front view of the structure of this utility model;

[0018] Figure 3 This is an internal schematic diagram of the structure of this utility model;

[0019] Figure 4 This is a detailed drawing of the connection between the gas transmission pipe and the connecting pipe in the structure of this utility model;

[0020] Figure 5 The structure of this utility model Figure 2 Enlarged view of point A;

[0021] Figure 6 The structure of this utility model Figure 3 Enlarged view of point B;

[0022] Figure 7 The structure of this utility model Figure 6 Enlarged view of point C;

[0023] Figure 8 This is an exploded view of the interior of the structure before installation.

[0024] Figure 9This is a schematic diagram of the internal structure of this utility model after installation.

[0025] In the diagram: 1. Compressor; 2. Gas pipe; 3. Connecting pipe; 4. Sealing gasket; 5. Outer mating sleeve; 6. Inner mating sleeve; 7. Positioning bolt; 8. Outer positioning buckle; 9. Inner positioning buckle; 10. Tightening rotating sleeve; 11. Fastening bolt; 12. Outer ring groove; 13. Inner ring groove; 14. Positioning hole; 15. Fastening threaded hole; 16. Mating threaded groove hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1-9As shown, this utility model provides a technical solution: a pipeline docking component for pneumatic servo control experiments, including an outer docking sleeve 5 and an inner docking sleeve 6. The outer and inner docking sleeves 5 and 6 are configured to fix the inner docking sleeve 6 to the surface of the gas supply pipe 2 via a threaded fitting, and the outer docking sleeve 5 to the surface of the connecting pipe 3 via a threaded fitting, thus fixing the outer docking sleeve 5 to the connecting pipe 3. Therefore, the docking installation of the outer and inner docking sleeves 5 and 6 constitutes a docking and pressing installation of the gas supply pipe 2 and the connecting pipe 3. The inner thread of the inner docking sleeve 6 is fitted onto the surface of one end of the gas supply pipe 2, and the other end of the gas supply pipe 2... The outer end is inserted into the compressor 1 and communicates with the air inlet of the compressor 1. The inner ring thread of the outer connecting sleeve 5 is fitted onto the surface of one end of the connecting pipe 3. A tight-fitting rotating sleeve 10 is rotatably connected to the left side of the outer connecting sleeve 5. The inner ring of the tight-fitting rotating sleeve 10 is threaded onto the surface of the inner connecting sleeve 6. Through the setting of the tight-fitting rotating sleeve 10, the displacement of the tight-fitting rotating sleeve 10 and the inner connecting sleeve 6 through the surface thread is achieved. With the help of the thread fastening force of the tight-fitting rotating sleeve 10 and the inner connecting sleeve 6, the outer connecting sleeve 5 and the inner connecting sleeve 6 are squeezed together by pulling, so as to achieve synchronous pressure on the air supply pipe 2 and the connecting pipe 3 and splice them together, and then squeeze the sealing gasket ring 4 set in the middle. To ensure a tighter seal between the gas supply pipe 2 and the connecting pipe 3, a sealing gasket 4 is installed between the gas supply pipe 2 and the connecting pipe 3. The inner diameter of the sealing gasket 4 is the same as the inner diameter of the gas supply pipe 2 and the connecting pipe 3. An outer annular groove 12 for use with the sealing gasket 4 is opened on the left side of the outer connecting sleeve 5, and an inner annular groove 13 for use with the sealing gasket 4 is opened on the right side of the inner connecting sleeve 6. The inner annular groove 13 ensures a tighter compression between the sealing gasket 4 and the inner connecting sleeve 6. The two edges of the sealing gasket 4 are in contact with the inner walls of the inner connecting sleeve 6 and the outer connecting sleeve 5, respectively. Two threaded slots 16 are provided in the annular groove on the right side of the inner connecting sleeve 6, and positioning bolts 7 are inserted into the threaded slots 16. The sealing gasket 4 has two positioning holes 14 on its ring for use with the positioning bolt 7. These two positioning holes 14 are symmetrically distributed vertically about the axis of the sealing gasket 4. The outer ring groove 12 of the outer mating sleeve 5 has an annular groove for use with the positioning bolt 7. The positioning bolt 7 passes through the positioning holes 14 on the sealing gasket 4 and its end is inserted into the mating threaded groove 16 of the inner mating sleeve 6. The surface of the positioning bolt 7 is threadedly connected to the inner wall of the sealing gasket 4 and the inner mating sleeve 6. By setting the positioning bolt 7, the threaded connection between the positioning bolt 7 and the mating threaded groove 16 in the inner mating sleeve 6 is achieved, so that the sealing gasket 4 can be stably installed in the inner ring groove 13 on the side of the inner mating sleeve 6.To achieve the effect of constraining and positioning the inner docking sleeve 6, an inner positioning buckle tube 9 is fixedly installed on the left edge of the inner docking sleeve 6, and an outer positioning buckle tube 8 is fixedly installed on the right edge of the outer docking sleeve 5. Four fastening threaded holes 15 are equally spaced on the annular outer surfaces of the outer positioning buckle tube 8 and the inner positioning buckle tube 9. Fastening bolts 11 are inserted and installed through the fastening threaded holes 15. The end of the fastening bolt 11 on the inner positioning buckle tube 9 is in contact with the outer surface of the gas transmission pipe 2, and the end of the fastening bolt 11 on the outer positioning buckle tube 8 is in contact with the surface of the connecting pipe 3. The screw head of the fastening bolt 11 has a cross groove. By setting the fastening bolts 11, multiple fastening bolts 11 are used to make the threads on the surfaces of the outer positioning buckle tube 8 and the inner positioning buckle tube 9 respectively, so as to squeeze the surfaces of the gas transmission pipe 2 and the connecting pipe 3, so as to achieve a more stable connection at the docking point of the gas transmission pipe 2 and the connecting pipe 3 through the constraint and positioning of the outer positioning buckle tube 8 and the inner positioning buckle tube 9. ,

[0028] In use, first, place the sealing gasket 4 into the inner annular groove 13 on the side of the inner connecting sleeve 6, and install it using the threaded positioning bolt 7 to fix the sealing gasket 4 in the inner annular groove 13 of the inner connecting sleeve 6. Then, respectively, screw the inner connecting sleeve 6 and the outer connecting sleeve 5 onto the joint of the gas supply pipe 2 and the connecting pipe 3. Next, insert the installed inner connecting sleeve 6 into the tight-fitting rotating sleeve 10 located on the left side of the outer connecting sleeve 5. By turning the knob of the tight-fitting rotating sleeve 10, the surface of the inner connecting sleeve 6 and the internal thread of the tight-fitting rotating sleeve 10 are extended and retracted inward to connect, causing the inner connecting sleeve 6 and the outer connecting sleeve 5 to be simultaneously pressed inward to connect and install. During the connecting and pressing process, a horizontal connection pressure is formed at the joint of the gas supply pipe 2 and the connecting pipe 3, and simultaneously... The sealing gasket ring 4 is squeezed to make the connection between the gas supply pipe 2 and the connecting pipe 3 more airtight, until the right edge of the inner connecting sleeve 6 and the left edge of the outer connecting sleeve 5 are in the tightest contact state. Then, all the fastening bolts 11 on the outer positioning buckle tube 8 and the inner positioning buckle tube 9 are rotated in sequence. With the squeezing and fastening force of the fastening bolts 11 and the gas supply pipe 2 and the connecting pipe 3, the connection positioning of the outer connecting sleeve 5 and the inner connecting sleeve 6 is fixed for a second time. This effectively ensures that the compressor gas supply pipe and the experimental connecting pipe are stably and sealed, while also ensuring that their internal connection points have the same inner diameter, so as not to affect the normal flow of air. This makes the connection between the compressor gas supply pipe and the experimental compressor gas supply pipe more usable and stable and reliable. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0029] In summary, this pneumatic servo control experimental pipeline connection component fixes the inner connecting sleeve 6 to the air supply pipe 2 by threading it onto the connection surface of the air supply pipe 2, and the outer connecting sleeve 5 to the connection surface of the connecting pipe 3 by threading it onto the connection surface of the connecting pipe 3. A sealing gasket 4 is installed in the inner annular groove on the outer side of the inner connecting sleeve 6, ensuring a sealing connection between the air supply pipe 2 and the connecting pipe 3. Then, a tight-fitting rotating sleeve 10 is threadedly connected to the outer surface of the inner connecting sleeve 6. Through the threaded expansion and contraction principle of the inner connecting sleeve 6 within the tight-fitting rotating sleeve 10, the inner connecting sleeve 6 and the outer connecting sleeve are pulled together. 5. The inward pressing and connecting process creates horizontal pressure at the joint of the gas supply pipe 2 and the connecting pipe 3, while simultaneously pressing the sealing gasket ring 4 to ensure a tighter seal between the gas supply pipe 2 and the connecting pipe 3, preventing gas leakage. Then, the fastening bolts 11 on the outer positioning buckle 8 and the inner positioning buckle 9 are tightened to further secure the outer connecting sleeve 5 and the inner connecting sleeve 6. This effectively ensures a stable and sealed connection between the compressor gas supply pipe and the experimental connecting pipe, while also ensuring that the internal joints have the same inner diameter, thus not affecting the normal flow of air. This makes the connection between the compressor gas supply pipe and the experimental compressor gas supply pipe more usable and reliable.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe connection component for pneumatic servo control experiments, comprising an outer connection sleeve (5) and an inner connection sleeve (6), characterized in that: The inner ring thread of the inner mating sleeve (6) is fitted onto the surface of one end of the gas transmission pipe (2). The other end of the gas transmission pipe (2) is inserted into the interior of the compressor (1) and communicates with the gas transmission port of the compressor (1). The inner ring thread of the outer mating sleeve (5) is fitted onto the surface of one end of the connecting pipe (3). A closed rotating sleeve (10) is rotatably connected to the left side of the outer mating sleeve (5). The inner ring of the closed rotating sleeve (10) is threadedly fitted onto the surface of the inner mating sleeve (6). A sealing gasket (4) is provided between the gas supply pipe (2) and the connecting pipe (3). The inner diameter of the sealing gasket (4) is the same as the inner diameter of the gas supply pipe (2) and the connecting pipe (3). An outer ring groove (12) for use with the sealing gasket (4) is provided on the left side of the outer mating sleeve (5), and an inner ring groove (13) for use with the sealing gasket (4) is provided on the right side of the inner mating sleeve (6). The two sides of the sealing gasket (4) are respectively mated with the inner side. The inner walls of the sleeve (6) and the outer mating sleeve (5) are pressed together. An inner positioning buckle (9) is fixedly provided on the left side edge of the inner mating sleeve (6), and an outer positioning buckle (8) is fixedly provided on the right side edge of the outer mating sleeve (5). Four fastening threaded holes (15) are equally spaced on the annular outer surfaces of the outer positioning buckle (8) and the inner positioning buckle (9). Fastening bolts (11) are inserted through the inside of the fastening threaded holes (15).

2. The pipeline connection component for pneumatic servo control experiments according to claim 1, characterized in that: The inner mating sleeve (6) has two mating threaded slots (16) in the right annular groove. A positioning bolt (7) is inserted into the mating threaded slot (16). The sealing gasket (4) has two positioning holes (14) for use with the positioning bolt (7). The two positioning holes (14) are symmetrically distributed about the axis of the sealing gasket (4). The outer annular groove (12) of the outer mating sleeve (5) has an annular groove for use with the positioning bolt (7).

3. A pipe connection component for pneumatic servo control experiments according to claim 2, characterized in that: The positioning bolt (7) passes through the positioning hole (14) on the sealing gasket (4) ring and its end is inserted into the mating threaded slot (16) of the inner mating sleeve (6). The surface of the positioning bolt (7) is threadedly connected to the inner wall of the sealing gasket (4) and the inner mating sleeve (6).

4. A pipeline connection component for pneumatic servo control experiments according to claim 1, characterized in that: The end of the fastening bolt (11) on the inner positioning buckle tube (9) is pressed against the outer surface of the gas transmission pipe (2), and the end of the fastening bolt (11) on the outer positioning buckle tube (8) is pressed against the surface of the connecting pipe (3). The screw head of the fastening bolt (11) has a cross groove.

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