A type of pipe clamp and pneumatic sample delivery network

Abstract

This application discloses a pipe clamp and a pneumatic sample delivery pipeline, belonging to the technical field of connectors. The pipe clamp includes a clamp ring, a first sealing ring, a retaining ring, a sealing strip, a first ear, a second ear, and a connecting assembly. The clamp ring has an adjustment port arranged axially; axially, the inner walls of both sides of the clamp ring are also provided with a first mounting groove and a second mounting groove, the second mounting groove being located between the two first mounting grooves. The first sealing ring is disposed in the first mounting groove. The retaining ring is disposed in the second mounting groove, and the retaining ring has a notch. The sealing strip extends axially and is disposed in the adjustment port, with both sides of the sealing strip contacting the first sealing rings located on both sides of the clamp ring. The first ear and the second ear are respectively located on both sides of the adjustment port and are spaced apart, both being fixedly connected to the clamp ring. The connecting assembly is connected to the first ear and the second ear and is used to adjust the width of the adjustment port.

Description

Technical Field

[0001] This application belongs to the technical field of connectors, and particularly relates to a pipe clamp and a pneumatic sample delivery pipeline network. Background Technology

[0002] Pneumatic sample delivery is a method of transporting samples by using the energy of gas in a pipeline to move the sample along a designated route. Pneumatic sample delivery technology has developed rapidly in recent years and has been widely used in China. It effectively meets the requirements of ironmaking, steelmaking, and ladle refining processes for rapid sample delivery, rapid analysis, and rapid feedback. This is of great significance for shortening smelting time, ensuring product quality, and improving the economic benefits of enterprises.

[0003] If air leaks in the pipeline during transmission, the gas pressure inside the pipeline will decrease, causing the sample box transmission to fail. In practice, it has been found that air leaks are prone to occur at the connection between adjacent pipelines.

[0004] Chinese utility model patent CN211738325U discloses a pneumatic sample delivery pipeline connection device and a pneumatic sample delivery pipeline network. This patent connects two adjacent pipelines using two flanges and bolted connections, effectively preventing air leakage at the connection point. However, this patent requires welding to install the flanges, which is inconvenient. When there are many pipelines, the number of flanges also increases, requiring welding of multiple flanges, resulting in significant construction difficulty and high costs. Utility Model Content

[0005] This application aims to at least partially solve the technical problem of inconvenient installation of pneumatic sample delivery pipe connection devices in related technologies. To this end, this application provides a pipe clamp.

[0006] In a first aspect, an embodiment of this application provides a pipe clamp, comprising:

[0007] The hoop has an adjustment port arranged along the axial direction; along the axial direction, the inner walls on both sides of the hoop are also provided with a first mounting groove and a second mounting groove, the second mounting groove being located between the first mounting grooves on both sides;

[0008] The first sealing ring is disposed in the first mounting groove;

[0009] A retaining ring is disposed in the second mounting groove, and the retaining ring has a notch;

[0010] A sealing strip extends along the axial direction and is disposed within the adjustment port, with both sides of the sealing strip contacting the first sealing rings located on both sides of the hoop.

[0011] The first ear and the second ear are located on both sides of the adjustment port and are spaced apart, and are both fixedly connected to the hoop.

[0012] A connecting component, connected to the first ear and the second ear, is used to adjust the width of the adjustment port.

[0013] In some embodiments, the pipe clamp further includes a second sealing ring, which is disposed in the middle of the clamp along the axial direction and located inside the clamp.

[0014] In some embodiments, a third mounting groove is provided in the middle of the inner wall of the hoop along the axial direction, and the second sealing ring is disposed in the third mounting groove.

[0015] In some embodiments, the hoop further has a fourth mounting groove extending along the axial direction, the fourth mounting groove being formed on one sidewall of the notch, the fourth mounting groove communicating with the first mounting groove, and the sealing strip being disposed within the fourth mounting groove.

[0016] In some embodiments, two fourth mounting slots are provided, which are respectively opened on the two side walls of the notch. The two fourth mounting slots are arranged opposite to each other, and the sealing strip is located in both fourth mounting slots at the same time.

[0017] In some embodiments, a plurality of connecting components are spaced apart along the axial direction.

[0018] In some embodiments, the first ear has a first clearance through hole, and the second ear has a second clearance through hole, the first clearance through hole and the second clearance through hole being disposed opposite to each other; the connecting assembly includes a bolt and a nut, the bolt being located in the first clearance through hole and the second clearance through hole and being threadedly connected to the nut.

[0019] In some embodiments, the first sealing ring and the sealing strip are integrally formed.

[0020] In some embodiments, the hoop, the first ear, and the second ear are integrally formed.

[0021] Secondly, an embodiment of this application provides a pneumatically powered sample delivery network, comprising:

[0022] Sending station;

[0023] Receiving station;

[0024] The pipe clamps described in the first aspect;

[0025] Multiple transmission pipes are arranged sequentially, and the pipe clamp connects two adjacent transmission pipes. The two transmission pipes located at both ends are respectively connected to the sending station and the receiving station.

[0026] This utility model has at least the following beneficial effects:

[0027] The pipe clamp includes a clamp ring, a first sealing ring, a retaining ring, a sealing strip, a first ear, a second ear, and a connecting assembly. The clamp ring has an adjustment port arranged axially; axially, the inner walls of both sides of the clamp ring also have a first mounting groove and a second mounting groove, with the second mounting groove located between the two first mounting grooves. The first sealing ring is disposed within the first mounting groove. The retaining ring is disposed within the second mounting groove and has a notch. The sealing strip extends axially and is disposed within the adjustment port, with both sides of the sealing strip contacting the first sealing rings located on both sides of the clamp ring. The first ear and the second ear are located on both sides of the adjustment port and spaced apart, both fixedly connected to the clamp ring. The connecting assembly is connected to the first ear and the second ear and is used to adjust the width of the adjustment port. By adjusting the connecting assembly, the pipe clamp can be fixed and sealed to the pipe, or removed from the pipe, making installation convenient and highly efficient. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A front view of the clamp is shown in some embodiments of this application.

[0030] Figure 2 It shows Figure 1 A cross-sectional view along the AA direction.

[0031] Figure 3 It shows Figure 2 A schematic diagram showing the first sealing ring, the retaining ring, the second sealing ring, and the sealing strip hidden.

[0032] Figure 4 A front view of the clamp is shown in some other embodiments of this application.

[0033] Figure 5 It shows Figure 4 A cross-sectional view along the BB direction after concealing the first sealing ring, the retaining ring, the second sealing ring, and the sealing strip.

[0034] Figure 6 A front view of the retaining ring is shown.

[0035] Figure 7 A schematic diagram of the structure of the pneumatic sample delivery network in some embodiments of this application is shown.

[0036] Reference numerals: 100-pipe clamp, 110-clamp ring, 110a-adjustment port, 110b-first mounting groove, 110c-second mounting groove, 110d-third mounting groove, 110f-fourth mounting groove, 120-first sealing ring, 130-retaining ring, 130a-notch, 140-sealing strip, 150-first ear, 150a-first clearance through hole, 160-second ear, 160a-second clearance through hole, 170-connecting assembly, 171-bolt, 172-nut, 180-second sealing ring, 1000-pneumatic sample delivery pipeline, 200-sending station, 300-receiving station, 400-transmission pipeline. Detailed Implementation

[0037] 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.

[0038] It should be noted that all directional indications in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. In this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. In addition, the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0039] In related technologies, pneumatic sample delivery pipeline connection devices suffer from installation difficulties. This application provides a pipe clamp that can at least partially solve the installation difficulties of pneumatic sample delivery pipeline connection devices in related technologies.

[0040] This application is described below with reference to the accompanying drawings and specific embodiments:

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, the pipe clamp 100 includes a clamp ring 110, a first sealing ring 120, a retaining ring 130, a sealing strip 140, a first ear 150, a second ear 160, and a connecting assembly 170. The clamp ring 110 has an axially oriented adjustment port 110a; axially, the inner walls of both sides of the clamp ring 110 are also provided with a first mounting groove 110b and a second mounting groove 110c, with the second mounting groove 110c located between the two first mounting grooves 110b. The first sealing ring 120 is disposed within the first mounting groove 110b. The retaining ring 130 is disposed within the second mounting groove 110c, and the retaining ring 130 has a notch 130a. The sealing strip 140 extends axially and is disposed within the adjustment port 110a, with both sides of the sealing strip 140 contacting the first sealing rings 120 located on both sides of the clamp ring. The first ear 150 and the second ear 160 are located on both sides of the adjustment port 110a and are spaced apart, both being fixedly connected to the clamp ring 110. The connecting component 170 is connected to the first ear 150 and the second ear 160 and is used to adjust the width of the adjusting port 110a.

[0042] It should be noted that the pipe clamp 100 provided in this application is used to connect two pipes. The medium transported by the pipes is not limited in this application and can be gas (e.g., air), fluid (e.g., water), etc. For the convenience of the following description, the following description uses gas as an example.

[0043] The hoop 110 has an adjustment port 110a, which allows the hoop 110 to contract, that is, its diameter can be changed.

[0044] Both the first sealing ring 120 and the sealing strip 140 are flexible and can deform under stress. They can be made of materials such as rubber.

[0045] The first sealing ring 120 is installed in the first mounting groove 110b, which limits the first sealing ring 120 to prevent it from shifting during the installation of the pipe clamp 100. At least a portion of the first sealing ring 120 extends out of the first mounting groove 110b, so that after the pipe is inserted into the clamp 110, the first sealing ring 120 is fitted over the pipe and can contact it.

[0046] A sealing strip 140 is disposed inside the adjustment port 110a, and the function of the sealing strip 140 is to seal the adjustment port 110a. Both ends of the sealing strip 140 are in contact with the first sealing ring 120 so that there is no gap between the sealing strip 140 and the first sealing ring 120, thereby preventing gas from escaping from between the sealing strip 140 and the first sealing ring 120.

[0047] The retaining ring 130 is installed within the second mounting groove 110c, which limits the retaining ring 130 and prevents it from shifting during the installation of the pipe clamp 100. At least a portion of the retaining ring 130 also extends beyond the second mounting groove 110c, so that after the pipe is inserted into the clamp 110, the retaining ring 130 fits over the pipe and can contact it. Figure 6 As shown, the retaining ring 130 has a notch 130a, allowing it to contract, meaning its diameter can change. The retaining ring 130 can be made of a rigid material, such as steel or iron, or plastic. The retaining ring 130 serves two purposes: first, it supports the pipe clamp 100, preventing it from deforming excessively and cracking under the action of the connecting component 170; second, under the action of the pipe clamp 100, the diameter of the retaining ring 130 can decrease, clamping the pipe located inside it and preventing the pipe from falling off.

[0048] Along the axis of the hoop 110, a first mounting groove 110b and a second mounting groove 110c are formed on one side of the hoop 110, and a first mounting groove 110b and a second mounting groove 110c are also formed on the other side. The second mounting groove 110c is located between the two first mounting grooves 110b, such as... Figure 2 As shown, in some embodiments, a first mounting groove 110b and a second mounting groove 110c are provided on each side of the hoop 110, and the two second mounting grooves 110c are located between the two first mounting grooves 110b.

[0049] The connecting component 170 connects to both the first ear 150 and the second ear 160. The connecting component 170 can adjust the distance between the first ear 150 and the second ear 160, thereby changing the width of the adjusting port 110a and consequently changing the diameter of the clamp 110. The connecting component 170 has various structures, which are not limited in this application. It can be a bolt 171 that passes through the first ear 150 and is threadedly connected to the second ear 160. Alternatively, the connecting component 170 can include a bolt 171 and a nut 172, with the bolt 171 passing through the first ear 150 and the second ear 160 and then connected to the nut 172.

[0050] The working principle of pipe clamp 100 is explained below:

[0051] When connecting the pipe clamp 100 to the pipe, adjust the connecting assembly 170 to increase the diameter of the clamp ring 110. Then, put the clamp ring 110 on the outside of the pipe. During the process of putting the clamp ring 110 on the outside of the pipe, the first sealing ring 120 and the clamp ring 110 are also put on the outside of the pipe. Then, adjust the connecting assembly 170 so that the first ear 150 and the second ear 160 are close to each other. The diameter of the clamp ring 110 and the width of the adjusting port 110a are reduced, thereby pressing the sealing strip 140, the first sealing ring 120 and the retaining ring 130. The sealing strip 140 will fit tightly against the two side walls of the adjusting port 110a and the first sealing rings 120 on both sides. The first sealing ring 120 will fit tightly against the clamp ring 110 and the pipe. The diameter of the retaining ring 130 will also decrease, thereby clamping the pipe. In this way, the pipe is clamped by the retaining ring 130 and the clamp ring 110, making the pipe clamp 100 firmly fixed to the pipe. The first sealing ring 120 seals the pipe and the pipe clamp 100, and the sealing strip 140 seals the adjustment port 110a, preventing gas from escaping from the gap between the pipe and the pipe clamp 100, and also preventing gas from escaping from the adjustment port 110a. To remove the pipe clamp 100, adjust the connecting assembly 170 to reduce the diameter of the clamp ring 110, and then the pipe clamp 100 can be removed from the pipe.

[0052] The pipe clamp 100 can be fixed and sealed to the pipe or removed from the pipe by adjusting the connecting component 170. It is easy to install and has high installation and disassembly efficiency.

[0053] Each side of the clamp 110 may have one or more first mounting grooves 110b, which is not limited in this application. Similarly, each side of the clamp 110 may have one or more second mounting grooves 110c. A first sealing ring 120 is provided in each first mounting groove 110b, and similarly, a retaining ring 130 is provided in each second mounting groove 110c. To a certain extent, the more first sealing rings 120 there are, the better the sealing performance between the pipe and the clamp 100; the more retaining rings 130 there are, the higher the connection strength between the clamp 100 and the pipe.

[0054] In some embodiments, the pipe clamp 100 further includes a second sealing ring 180, which is disposed in the middle of the clamp 110 and located inside the clamp 110 along the axis of the clamp 110.

[0055] The second sealing ring 180 is flexible and deformable under stress, and can be made of materials such as rubber. The two pipes are joined in the middle area of ​​the clamp 110. After the clamp 100 is installed, the second sealing ring 180 is simultaneously fitted over both pipes, tightly fitting against the clamp 110 and the two pipes, sealing the joint and improving the sealing performance of the clamp 100. It is easy to understand that the width of the second sealing ring 180 should meet the requirement of being fitted over two pipes simultaneously. Its specific width value can be adaptively designed by the user according to specific circumstances and is not limited in this application.

[0056] In some embodiments, a third mounting groove 110d is provided in the middle of the inner wall of the hoop 110 along the axis of the hoop 110, and the second sealing ring 180 is disposed in the third mounting groove 110d.

[0057] The second sealing ring 180 is installed within the third mounting groove 110d, which limits the second sealing ring 180 to prevent displacement during the installation of the pipe clamp 100. At least a portion of the second sealing ring 180 extends beyond the third mounting groove 110d, allowing the second sealing ring 180 to fit over the pipe and contact it after the pipe is inserted into the clamp 110. The third mounting groove 110d is located in the middle region of the clamp 110, and the second sealing ring 180 is also located in the middle region of the clamp 110 after installation. The two pipes are joined in the middle region of the clamp 110. After the pipe clamp 100 is installed, the second sealing ring 180 is simultaneously fitted over both pipes, and the clamp 110 and the two pipes are tightly fitted together.

[0058] If the sealing strip 140 is placed directly inside the adjustment port 110a, it is prone to falling off; or it is prone to displacement, failing to fit properly with the first sealing ring 120. Figure 4 and Figure 5 As shown, in some embodiments, the hoop 110 also has a fourth mounting groove 110f extending axially, the fourth mounting groove 110f being formed on one of the sidewalls of the notch 130a, the fourth mounting groove 110f communicating with the first mounting groove 110b, and the sealing strip 140 being disposed in the fourth mounting groove 110f.

[0059] A sealing strip 140 is installed within a fourth mounting groove 110f, which limits the sealing strip 140 and prevents it from shifting during transport or installation of the pipe clamp 100. At least a portion of the sealing strip 140 extends out of the fourth mounting groove 110f, allowing it to contact the other sidewall of the notch 130a. The fourth mounting groove 110f communicates with each of the first mounting grooves 110b, enabling the sealing strip 140 in the fourth mounting groove 110f to contact the first sealing ring 120 in the first mounting groove 110b.

[0060] In some embodiments, two fourth mounting grooves 110f are provided, which are respectively opened on the two side walls of the notch 130a. The two fourth mounting grooves 110f are arranged opposite to each other, and the sealing strip 140 is located in both fourth mounting grooves 110f at the same time.

[0061] A fourth mounting groove 110f is opened on each of the two side walls of the notch 130a, and the two fourth mounting grooves 110f are arranged opposite to each other. In this way, the sealing strip 140 can be located in the two fourth mounting grooves 110f at the same time. The sealing strip 140 is simultaneously limited by the two fourth mounting grooves 110f, which ensures the accuracy of the position of the sealing strip 140 and thus ensures the sealing effect of the sealing strip 140.

[0062] In some embodiments, a plurality of connecting components 170 are spaced apart along the axis of the clamp 110. The arrangement of the plurality of connecting components 170 increases the clamping force of the clamp 100, which helps to improve the connection strength and sealing effect between the clamp 100 and the pipe. In addition, the plurality of connecting components 170 are spaced apart along the axial direction, so that the connecting components 170 can apply force evenly to multiple points along the axial direction of the first ear 150 and the second ear 160, making the force on the first ear 150 and the second ear 160 more uniform, and preventing cracking of the first ear 150 and the second ear 160 due to concentrated force.

[0063] like Figure 1 As shown, in some embodiments, the first ear 150 has a first clearance through hole 150a, and the second ear 160 has a second clearance through hole 160a, with the first clearance through hole 150a and the second clearance through hole 160a disposed opposite to each other; the connecting assembly 170 includes a bolt 171 and a nut 172, the bolt 171 being located in the first clearance through hole 150a and the second clearance through hole 160a, and being threadedly connected to the nut 172.

[0064] The bolt 171's threaded shaft passes sequentially through the first clearance hole 150a and the second clearance hole 160a, with the nut 172 connected to the end of the bolt 171 furthest from the head. The first lug 150 and the second lug 160 are located between the head of the bolt 171 and the nut 172, clamping the first lug 150 and the second lug 160 together. Tightening the nut 172 brings the first lug 150 and the second lug 160 closer together; loosening the nut 172 pushes the first lug 150 and the second lug 160 away from each other. The connection between the first lug 150 and the second lug 160 via the bolt 171 and the nut 172 allows for convenient adjustment. Furthermore, due to the threaded connection between the nut 172 and the bolt 171, the nut 172 can slide infinitely on the bolt 171, enabling continuous adjustment of the distance between the first lug 150 and the second lug 160 within a certain range. This allows for continuous adjustment of the diameter of the clamp 110 and the width of the adjusting port 110a, thus adapting to pipes of different specifications.

[0065] In some embodiments, the first sealing ring 120 and the sealing strip 140 are integrally formed.

[0066] The first sealing ring 120 and the sealing strip 140 can be integrally molded by injection molding or other methods. Integrating the first sealing ring 120 and the sealing strip 140 has several advantages. First, it facilitates the processing of the pipe clamp 100. Second, after integral molding, the sealing strip 140 is fixed to the first sealing ring 120. When the first sealing ring 120 is limited by the first mounting groove 110b, the sealing strip 140 is also limited, ensuring the accuracy of the sealing strip 140's position. This eliminates the need for additional grooves to limit the sealing strip 140, simplifying the structure of the pipe clamp 100 and reducing processing difficulty. Furthermore, the integral molding of the first sealing ring 120 and the sealing strip 140 eliminates the need for clamping with the clamp ring 110, ensuring a tight fit between them. During installation, operators do not need to repeatedly adjust the position of the sealing strip 140 to ensure contact with the first sealing ring 120, thus facilitating the installation of the pipe clamp 100.

[0067] In some implementations, the hoop 110, the first ear 150, and the second ear 160 are integrally formed.

[0068] The hoop 110, the first ear 150, and the second ear 160 can be integrally formed by machining, casting, or other methods. Integrating the hoop 110, the first ear 150, and the second ear 160 into one piece facilitates the processing of the pipe clamp 100.

[0069] like Figure 7As shown, based on the same inventive concept, this application also provides a pneumatic sample delivery network 1000, including a sending station 200, a receiving station 300, the aforementioned pipe clamp 100, and multiple transmission pipes 400. The multiple transmission pipes 400 are arranged sequentially, with the pipe clamp 100 connecting two adjacent transmission pipes. The two transmission pipes 400 located at both ends are respectively connected to the sending station 200 and the receiving station 300.

[0070] The pneumatic sample delivery network 1000 is used to transport the pneumatic sample delivery box containing the sample. The sending station 200 is equipped with a compressed air source pipe for supplying compressed air, and the receiving station 300 is equipped with a compressed air receiving pipe for receiving compressed air. Pipe clamps 100 connect multiple transmission pipes 400 sequentially to form a pipe assembly. One end of the pipe assembly is connected to the outlet of the compressed air source pipe, and the other end is connected to the inlet of the compressed air receiving tank. The structure and working principle of the sending station 200 and the receiving station 300 are known to those skilled in the art and will not be described in detail here.

[0071] Since the pneumatic sample delivery pipeline 1000 has the aforementioned clamp 100, it naturally possesses all the beneficial effects of the clamp 100, which will not be elaborated upon here.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0073] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0074] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A pipe clamp, characterized in that, include: The hoop (110) has an adjustment port (110a) arranged along the axial direction; along the axial direction, the inner walls on both sides of the hoop (110) are also provided with a first mounting groove (110b) and a second mounting groove (110c), and the second mounting groove (110c) is located between the first mounting grooves (110b) on both sides. The first sealing ring (120) is disposed in the first mounting groove (110b); A retaining ring (130) is disposed in the second mounting groove (110c), and the retaining ring (130) has a notch (130a). A sealing strip (140) extends along the axial direction and is disposed in the adjustment port (110a), and both sides of the sealing strip (140) are in contact with the first sealing ring (120) located on both sides of the hoop (110); The first ear (150) and the second ear (160) are located on both sides of the adjustment port (110a) and are spaced apart, and are both fixedly connected to the hoop (110); A connecting component (170), connected to the first ear (150) and the second ear (160), is used to adjust the width of the adjustment port (110a).

2. The pipe clamp according to claim 1, characterized in that, The pipe clamp (100) also includes a second sealing ring (180), which is disposed in the middle of the clamp (110) along the axial direction and is located inside the clamp (110).

3. The pipe clamp according to claim 2, characterized in that, Along the axial direction, a third mounting groove (110d) is provided in the middle of the inner wall of the hoop (110), and the second sealing ring (180) is disposed in the third mounting groove (110d).

4. The pipe clamp according to any one of claims 1-3, characterized in that, The hoop (110) also has a fourth mounting groove (110f) extending along the axial direction, the fourth mounting groove (110f) being formed on one of the side walls of the notch (130a), the fourth mounting groove (110f) communicating with the first mounting groove (110b), and the sealing strip (140) being disposed in the fourth mounting groove (110f).

5. The pipe clamp according to claim 4, characterized in that, Two fourth mounting slots (110f) are provided, which are respectively opened on the two side walls of the notch (130a). The two fourth mounting slots (110f) are arranged opposite to each other, and the sealing strip (140) is located in both fourth mounting slots (110f).

6. The pipe clamp according to any one of claims 1-3, characterized in that, Along the axial direction, a plurality of connecting components (170) are provided at intervals.

7. The pipe clamp according to any one of claims 1-3, characterized in that, The first ear (150) has a first clearance through hole (150a), and the second ear (160) has a second clearance through hole (160a). The first clearance through hole (150a) and the second clearance through hole (160a) are arranged opposite to each other. The connecting assembly (170) includes a bolt (171) and a nut (172). The bolt (171) is located in the first clearance through hole (150a) and the second clearance through hole (160a) and is threadedly connected to the nut (172).

8. The pipe clamp according to any one of claims 1-3, characterized in that, The first sealing ring (120) and the sealing strip (140) are integrally formed.

9. The pipe clamp according to any one of claims 1-3, characterized in that, The hoop (110), the first ear (150) and the second ear (160) are integrally formed.

10. A pneumatically powered sample delivery pipeline network, characterized in that, include: Sending station (200); Receiving station (300); The clamp (100) according to any one of claims 1-9; Multiple transmission pipes (400) are arranged sequentially, and the pipe clamp (100) is connected to two adjacent transmission pipes (400). The two transmission pipes (400) located at both ends are respectively connected to the sending station (200) and the receiving station (300).

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