Vacuum pipeline connecting structure and vacuum equipment

Abstract

The utility model discloses a vacuum pipeline connecting structure and vacuum equipment, and relates to the technical field of pipeline connection. The vacuum pipeline connecting structure comprises a first pipe section and a second pipe section, one end of the first pipe section is provided with a first flange, the first flange is provided with a locking part, the locking part comprises a receding hole and a locking groove which penetrate through the first flange, and one end of the locking groove is communicated with the receding hole; a second flange is arranged at one end of the second pipe section, a locking piece is arranged on the second flange in a protruding mode, the locking piece penetrates through the locking groove and abuts against the side, away from the second flange, of the first flange, and the locking piece is used for sliding to the receding hole along the locking groove under the action of external force so as to unlock the first flange. The vacuum pipeline connecting structure provided by the utility model is low in disassembly and assembly difficulty, and time-saving and labor-saving in the disassembly and assembly process.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, in particular to a vacuum pipeline connection structure and vacuum equipment. Background Art

[0002] At present, KF flanges or CF flanges are usually used on the market to connect vacuum pipes. The clamp structure of the KF flange and the large number of bolt and nut combinations of the CF flange are difficult to disassemble and assemble, which is time-consuming and labor-intensive in actual application. Utility Model Content

[0003] The utility model aims to provide a vacuum pipe connection structure, which has the characteristics of low assembly and disassembly difficulty, time saving and labor saving.

[0004] Another object of the utility model is to provide a vacuum device, which has the characteristics of low difficulty in disassembly and assembly, saving time and labor.

[0005] The embodiment of the utility model provides a technical solution:

[0006] A vacuum pipe connection structure comprises a first pipe section and a second pipe section, wherein a first flange is arranged at one end of the first pipe section, the first flange has a locking portion, the locking portion comprises a clearance hole and a locking groove penetrating the first flange, and one end of the locking groove is communicated with the clearance hole;

[0007] A second flange is provided at one end of the second pipe section, and a locking piece is protruded from the second flange. The locking piece passes through the locking groove and abuts against a side of the first flange away from the second flange. The locking piece is used to slide along the locking groove to the clearance hole under the action of external force to release the lock of the first flange.

[0008] In an optional embodiment, a side of the first flange facing away from the second flange has a locking inclined wall, the locking groove is formed on the locking inclined wall, and the locking inclined wall is used to guide the locking member to slide, so that the locking member pulls the second flange gradually closer to the first flange during the process of sliding along the locking groove away from the clearance hole.

[0009] In an optional embodiment, there are multiple locking parts, and the multiple locking parts are evenly distributed around the periphery of the pipe mouth of the first pipe section; there are multiple locking members, and each locking member passes through the locking groove corresponding to each locking part.

[0010] In an optional embodiment, the extension trajectories of the multiple locking grooves are all arcs whose centers coincide with the center of the pipe mouth of the first pipe section, and the multiple clearance holes are respectively located at the same end of the corresponding locking grooves in the same circumferential direction.

[0011] In an optional embodiment, the locking member includes a stop block and a guide sliding block, the stop block is connected to the second flange via the guide sliding block, the guide sliding block passes through the locking groove, and the stop block abuts against the side of the first flange facing away from the second flange; when the guide sliding block slides into the clearance hole along the locking groove, the stop block can exit the clearance hole.

[0012] In an optional embodiment, a first mating hole is provided through the stop block, a second mating hole is provided on the first flange at an end of the locking groove away from the clearance hole, and the vacuum pipe connection structure also includes a mating piece, which is plugged into the first mating hole and the second mating hole.

[0013] In an optional embodiment, the first pipe segment and the first flange are integrally formed, and / or the second pipe segment and the second flange are integrally formed.

[0014] In an optional embodiment, a sealing groove is recessed on a side of the first flange close to the second flange, and the vacuum pipe connection structure also includes a sealing ring, which is embedded in the sealing groove and abuts against the second flange, and the sealing ring surrounds the pipe opening of the first pipe section and the pipe opening of the second pipe section.

[0015] The utility model also provides a vacuum device, comprising the vacuum pipe connection structure. The vacuum pipe connection structure comprises a first pipe section and a second pipe section, a first flange is provided at one end of the first pipe section, the first flange has a locking portion, the locking portion comprises a clearance hole and a locking groove penetrating the first flange, one end of the locking groove is connected to the clearance hole; a second flange is provided at one end of the second pipe section, a locking member is convexly provided on the second flange, the locking member passes through the locking groove and abuts against a side of the first flange away from the second flange, and the locking member is used to slide along the locking groove to the clearance hole under the action of an external force to release the locking of the first flange.

[0016] Compared with the prior art, the vacuum pipe connection structure provided by the utility model is that the second flange passes through the locking portion on the first flange through its locking member and abuts against the first flange to achieve locking with the first flange, thereby completing the connection between the first pipe section and the second pipe section. When disassembly is required, it is only necessary to apply a force to the second flange to drive the locking member to slide along the locking groove of the locking portion to the clearance hole to unlock it. After unlocking, the first flange and the second flange can be separated to complete the separation of the first pipe section and the second pipe section. It can be seen that the vacuum pipe connection structure provided by this embodiment abandons the clamp structure of the KF flange and the bolt and nut combination of the CF flange, and the disassembly and assembly process is simple and quick. Therefore, the beneficial effects of the vacuum pipe connection structure provided by the utility model include: low difficulty in disassembly and assembly, and the disassembly and assembly process saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.

[0018] Figure 1 An exploded schematic diagram of a vacuum pipe connection structure provided in an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A magnified schematic diagram of the middle A area;

[0020] Figure 3 for Figure 1 A magnified schematic diagram of area B.

[0021] Icons: 10-vacuum pipe connection structure; 100-first pipe section; 110-first flange; 111-locking part; 1111-clearance hole; 1112-locking groove; 112-locking inclined wall; 113-sealing groove; 200-second pipe section; 210-second flange; 211-locking piece; 2111-stop block; 2112-guide sliding block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0026] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" 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 an indirect connection 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.

[0028] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.

[0029] Example

[0030] Please refer to Figure 1 and Figure 2 , Figure 1 FIG. 1 is an exploded schematic diagram of the vacuum pipe connection structure 10 provided in this embodiment. Figure 2 Shown Figure 1 A magnified schematic diagram of area A in the middle.

[0031] The vacuum pipe connection structure 10 provided in this embodiment includes a first pipe section 100 and a second pipe section 200. A first flange 110 is provided at one end of the first pipe section 100, and the first flange 110 has a locking portion 111; a second flange 210 is provided at one end of the second pipe section 200, and a locking member 211 is protruding from the second flange 210. The locking member 211 cooperates with the locking portion 111 to achieve locking of the first flange 110 and the second flange 210, thereby completing the connection between the first pipe section 100 and the second pipe section 200.

[0032] Specifically, the locking portion 111 includes a clearance hole 1111 and a locking groove 1112 that penetrate the first flange 110, and one end of the locking groove 1112 is connected to the clearance hole 1111. The locking member 211 passes through the locking groove 1112 and abuts against a side of the first flange 110 that is away from the second flange 210. The locking member 211 is used to slide along the locking groove 1112 to the clearance hole 1111 under the action of an external force to release the locking of the first flange 110.

[0033] When the first pipe section 100 needs to be connected with the second pipe section 200, the locking member 211 on the second flange 210 is first aligned and passed through the clearance hole 1111 of the locking portion 111 on the first flange 110, and then the locking member 211 is driven to slide from the clearance hole 1111 into the locking groove 1112, and slide along the locking groove 1112 in a direction away from the clearance hole 1111 until the locking member 211 and the side of the first flange 110 facing away from the second flange 210 are abutted, thus completing the connection between the first pipe section 100 and the second pipe section 200.

[0034] When the first pipe section 100 and the second pipe section 200 need to be separated, the locking member 211 is driven to slide into the clearance hole 1111 along the locking groove 1112 of the locking portion 111, and the first flange 110 and the second flange 210 are in an unlocked state. Then, the locking member 211 is driven to exit the clearance hole 1111, and the separation of the first pipe section 100 and the second pipe section 200 is completed.

[0035] It can be understood that the pipe opening of the first pipe section 100 is opened on the first flange 110, and the pipe opening of the second pipe section 200 is opened on the second flange 210. When the first flange 110 and the second flange 210 are locked, the pipe opening of the first pipe section 100 is connected to the pipe opening of the second pipe section 200.

[0036] When the locking member 211 is in the locking groove 1112, the locking groove 1112 realizes the function of axially stopping the locking member 211, that is, the locking member 211 cannot directly exit the locking groove 1112 in the direction away from the first flange 110. When the locking member 211 slides along the locking groove 1112 in the direction away from the clearance hole 1111 until it abuts against the first flange 110, the static friction between the locking member 211 and the first flange 110 realizes the locking of the reverse sliding of the locking member 211. In other words, at this time, the locking member 211 is constrained in both the axial and radial directions of the pipe mouth, realizing the relative locking of the first flange 110 and the second flange 210.

[0037] In this embodiment, in order to improve the reliability of the locking state, the first flange 110 has a locking inclined wall 112 on the side away from the second flange 210, and a locking groove 1112 is opened on the locking inclined wall 112. The locking inclined wall 112 is used to guide the locking member 211 to slide, so that the locking member 211 can pull the second flange 210 gradually approach the first flange 110 during the process of sliding along the locking groove 1112 away from the clearance hole 1111.

[0038] When establishing the connection, the locking member 211 passes through the clearance hole 1111 and slides along the locking groove 1112 in the direction away from the clearance hole 1111. The locking member 211 contacts the locking inclined wall 112 on the back of the first flange 110 and slides on the surface of the locking inclined wall 112. In this process, the locking inclined wall 112 guides the locking member 211, guiding the locking member 211 to pull the second flange 210 axially close to the first flange 110, that is, the first flange 110 and the second flange 210 gradually approach each other. Until the second flange 210 cannot get any closer to the first flange 110, the locking member 211 stops sliding and the locking is completed.

[0039] It can be understood that the locking inclined wall 112 is arranged to be inclined relative to the back side of the flange. Specifically, on the first flange 110, from one end of the clearance hole 1111 connected by the locking groove 1112 to the end away from the clearance hole 1111, the distance between the locking inclined wall 112 and the second flange 210 gradually increases, that is, in the process of the locking member 211 sliding along the locking groove 1112 in the direction away from the clearance hole 1111, the locking member 211 slides uphill on the locking inclined wall 112.

[0040] In order to improve the locking effect, in actual application, a locking surface can be provided at the position where the locking inclined wall 112 is connected on the back of the first flange 110, and the locking surface is parallel to the back of the first flange 110 to eliminate the reverse sliding tendency of the locking member 211 in the locked state. A positioning groove can also be recessed on the locking inclined wall so that the locking member 211 is locked when it slides into the positioning groove, and the positioning groove plays a role in positioning the locking member 211.

[0041] In order to ensure the sealing of the connection between the first pipe section 100 and the second pipe section 200, in this embodiment, a sealing groove 113 is recessed on one side of the first flange 110 close to the second flange 210, and the vacuum pipe connection structure 10 also includes a sealing ring (not shown in the figure), which is embedded in the sealing groove 113 and abuts against the second flange 210, and the sealing ring surrounds the pipe openings of the first pipe section 100 and the pipe openings of the second pipe section 200.

[0042] It is understandable that before establishing the connection, the sealing ring is firstly annularly embedded in the sealing groove 113 on the first flange 110. In this state, one end of the sealing ring in the axial direction protrudes from the surface of the first flange 110. In the process of passing the locking member 211 through the clearance hole 1111 and establishing the connection, the locking member 211 pulls the second flange 210 to gradually move closer to the first flange 110 in the axial direction. In this process, the surface of the second flange 210 contacts and gradually presses against the end of the sealing ring protruding from the first flange 110, that is, the sealing ring is gradually squeezed and deformed.

[0043] As the locking member 211 slides along the locking groove 1112, the deformation of the sealing ring gradually increases. When the locking member 211 cannot slide further, it stops. At this time, the pipe opening of the first pipe section 100 and the pipe opening of the second pipe section 200 are connected in the sealing ring, and the sealing ring completes the sealing of the peripheral gap between the two pipe openings. In other words, in the locked state, the first flange 110 and the second flange 210 may not be in contact. In addition, in the locked state, the sealing ring will continue to apply axial thrust to the second flange 210, further improving the static friction between the locking member 211 and the first flange 110, and maintaining the reliability of the locked state.

[0044] Please join us Figure 3 , Figure 3 Shown Figure 1 A magnified schematic diagram of area B.

[0045] In this embodiment, the locking member 211 includes a stop block 2111 and a guide sliding block 2112. The stop block 2111 is connected to the second flange 210 through the guide sliding block 2112. The guide sliding block 2112 passes through the locking groove 1112. The stop block 2111 abuts against the side of the first flange 110 that is away from the second flange 210. When the guide sliding block 2112 slides into the clearance hole 1111 along the locking groove 1112, the stop block 2111 can withdraw from the clearance hole 1111.

[0046] It is understandable that the stopper 2111 can only pass through or exit the first flange 110 through the clearance hole 1111, and when the guide slider 2112 slides in the locking groove 1112, the groove walls on both sides of the locking groove 1112 restrict the stopper 2111 from axially exiting the locking groove 1112. In this embodiment, the locking portion 111 is roughly T-shaped, the clearance hole 1111 is a rectangular hole, one end of the locking groove 1112 is connected to a side hole wall of the clearance hole 1111, and the extension direction of the locking groove 1112 is at an angle to the extension direction of the clearance hole 1111. Correspondingly, the stopper 2111 is a rectangular block, and the guide slider 2112 is columnar, one end of which is connected to a side surface of the second flange 210 close to the first flange 110, and the other end is connected to the stopper 2111 at an angle.

[0047] In this embodiment, there are multiple locking parts 111, and the multiple locking parts 111 are evenly distributed around the periphery of the pipe mouth of the first pipe section 100; there are multiple locking members 211, and each locking member 211 passes through the locking groove 1112 corresponding to each locking part 111.

[0048] The extension trajectories of the multiple locking grooves 1112 are all arcs whose centers coincide with the center of the pipe opening of the first pipe section 100, and the multiple clearance holes 1111 are respectively located at the same end of the corresponding locking grooves 1112 in the same circumferential direction.

[0049] In actual applications, after the stop blocks 2111 of the multiple locking members 211 pass through the corresponding clearance holes 1111 of the multiple locking parts 111, the second flange 210 is rotated circumferentially, and the guide sliding blocks 2112 of the multiple locking members 211 slide into the locking grooves 1112 of the multiple locking parts 111, and slide along the multiple locking grooves 1112 in a direction away from the corresponding clearance holes 1111 until a locked state is reached.

[0050] In this embodiment, in order to further improve the reliability of the locking state, a first matching hole is penetrated through at least part of the stop block 2111, and a second matching hole is provided on the first flange 110 at an end of the locking groove 1112 away from the yield hole 1111. The vacuum pipe connection structure 10 also includes a matching piece, which is plugged into the first matching hole and the second matching hole.

[0051] In practical applications, the first matching hole can be a through hole, and the second matching hole can be a threaded hole, that is, the matching piece can be a screw. When the stop block 2111 moves to abut against the first flange 110 to complete the locking, the first matching hole is aligned with the second matching hole. At this time, the matching piece is inserted from the end of the first matching hole away from the first flange 110, and screwed into the second matching hole after passing through the first matching hole, so that the locking block can be reliably fixed on the first flange 110, thereby improving the reliability of the locking state of the first flange 110 and the second flange 210.

[0052] In this embodiment, the first pipe section 100 is integrally formed with the first flange 110, and the second pipe section 200 is integrally formed with the second flange 210. In other embodiments, the first pipe section 100 and the first flange 110, and the second pipe section 200 and the second flange 210 can be connected by other connection methods including welding.

[0053] In summary, the vacuum pipe connection structure 10 provided in this embodiment has the characteristics of low difficulty in disassembly and assembly, and the disassembly and assembly process is time-saving and labor-saving.

[0054] In addition, this embodiment also provides a vacuum device, which is equipped with the aforementioned vacuum pipe connection structure 10. Benefiting from the beneficial effects of the vacuum pipe connection structure 10, the vacuum device provided by this embodiment also has the characteristics of low difficulty in disassembly and assembly, and time-saving and labor-saving disassembly and assembly process.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vacuum pipe connection structure, characterized in that: The invention comprises a first pipe section (100) and a second pipe section (200), wherein one end of the first pipe section (100) is provided with a first flange (110), the first flange (110) has a locking portion (111), the locking portion (111) comprises a clearance hole (1111) and a locking groove (1112) penetrating the first flange (110), and one end of the locking groove (1112) is communicated with the clearance hole (1111); A second flange (210) is provided at one end of the second pipe section (200), and a locking member (211) is protruded from the second flange (210). The locking member (211) passes through the locking groove (1112) and abuts against a side of the first flange (110) that is away from the second flange (210). The locking member (211) is used to slide along the locking groove (1112) to the clearance hole (1111) under the action of an external force, so as to release the locking of the first flange (110).

2. The vacuum pipe connection structure according to claim 1, characterized in that: The first flange (110) has a locking inclined wall (112) on the side facing away from the second flange (210), and the locking groove (1112) is opened on the locking inclined wall (112). The locking inclined wall (112) is used to guide the locking member (211) to slide, so that the locking member (211) can pull the second flange (210) gradually close to the first flange (110) when sliding along the locking groove (1112) in a direction away from the clearance hole (1111).

3. The vacuum pipe connection structure according to claim 1, characterized in that: There are a plurality of locking portions (111), and the plurality of locking portions (111) are evenly distributed around the periphery of the pipe opening of the first pipe section (100); there are a plurality of locking members (211), and each locking member (211) passes through a corresponding locking groove (1112) of each locking portion (111).

4. The vacuum pipe connection structure according to claim 3, characterized in that: The extension trajectories of the plurality of locking grooves (1112) are all arcs whose centers coincide with the center of the pipe opening of the first pipe section (100), and the plurality of clearance holes (1111) are respectively located at the same end of the corresponding locking grooves (1112) in the same circumferential direction.

5. The vacuum pipe connection structure according to claim 1, characterized in that: The locking member (211) comprises a stop block (2111) and a guide slide block (2112); the stop block (2111) is connected to the second flange (210) via the guide slide block (2112); the guide slide block (2112) passes through the locking groove (1112); the stop block (2111) abuts against a side of the first flange (110) which is away from the second flange (210); when the guide slide block (2112) slides into the clearance hole (1111) along the locking groove (1112), the stop block (2111) can withdraw from the clearance hole (1111).

6. The vacuum pipe connection structure according to claim 5, characterized in that: The stop block (2111) is provided with a first matching hole, and the first flange (110) is provided with a second matching hole at a position at one end of the locking groove (1112) away from the clearance hole (1111). The vacuum pipe connection structure (10) also includes a matching piece, which is plugged into the first matching hole and the second matching hole.

7. The vacuum pipe connection structure according to claim 1, characterized in that: The first pipe section (100) and the first flange (110) are integrally formed, and / or the second pipe section (200) and the second flange (210) are integrally formed.

8. The vacuum pipe connection structure according to claim 1, characterized in that: A sealing groove (113) is recessed on one side of the first flange (110) close to the second flange (210), and the vacuum pipe connection structure (10) further comprises a sealing ring, which is embedded in the sealing groove (113) and abuts against the second flange (210), and the sealing ring surrounds the pipe opening of the first pipe section (100) and the pipe opening of the second pipe section (200).

9. A vacuum device, characterized in that: It comprises the vacuum pipe connection structure (10) as claimed in any one of claims 1 to 8.

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