Corrugated pipe device

Abstract

The utility model discloses a corrugated pipe device, which belongs to the technical field of corrugated pipes, and is characterized in that the corrugated pipe device comprises a corrugated pipe body, the corrugated pipe body is provided with flange plates, the flange plates are arranged at the two ends of the corrugated pipe body, and the corrugated pipe body is provided with a straight pipe part; the protective shell is connected to the corrugated pipe body in a sleeving manner; the adjusting bolts are uniformly distributed around the axis of the corrugated pipe body; wherein the adjusting bolt penetrates through the protective shell, the protective shell is provided with a middle shell and end shells, the end shells are arranged at the two ends of the middle shell, the middle shell is connected with the end shells, the straight pipe part is provided with an installation part, and the adjusting bolt is installed on the installation part. The adjusting bolt can be protected, and the structural stability of the adjusting bolt is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of bellows, and in particular, relates to a bellows device. Background Art

[0002] Bellows is a pipe with a regular wave-like appearance. Commonly used metal bellows include carbon steel, stainless steel, steel-lined plastic, aluminum, etc. They are mainly used for non-concentric axial transmission with a very small bending radius, or irregular turning, expansion and contraction, or absorbing thermal deformation of pipes, or for connecting pipes to pipes or pipes to equipment in situations where it is not convenient to install with fixed elbows. They are also commonly used in the core sealing sleeve of nuclear reactor water pools to compensate for errors caused by civil installation, on-site welding deformation, and excessive deformation caused by earthquake conditions, to ensure that the sealing of the reactor water pool is not damaged.

[0003] The existing Chinese patent with announcement number CN116557670B discloses an elastic vibration-damping bellows device, including a main body, on which are arranged in sequence a first cylindrical section, an axial corrugated section capable of axial extension and contraction, and a second cylindrical section. The invention is characterized in that a radial extension portion is connected to the end of the axial corrugated section, and the radial extension portion is a corrugated structure. The inner and outer sides of the radial extension portion are respectively welded to the axial corrugated section and the second cylindrical section, and an adjustment mechanism is also included.

[0004] Although the above-mentioned bellows device can ensure the sealing of the pipeline, the protection performance of the bellows device for the adjusting bolt is low when the bellows device is used, and an improvement is made to this. Utility Model Content

[0005] The purpose of this application is to provide a bellows device to address the above-mentioned technical problems, which can protect the adjusting bolt and ensure the structural stability of the adjusting bolt.

[0006] The present application provides a bellows device, comprising:

[0007] The bellows body is provided with flanges, the flanges are placed at both ends of the bellows body, and the bellows body is provided with a straight pipe portion;

[0008] A protective shell is sleeved on the bellows body;

[0009] There are several adjusting bolts evenly distributed around the axis of the bellows body;

[0010] Among them, the adjusting bolt passes through the protective shell, the protective shell is provided with an intermediate shell and an end shell, the end shell is placed at both ends of the intermediate shell, the intermediate shell is connected to the end shell, the straight pipe part is provided with a mounting part, and the adjusting bolt is installed on the mounting part.

[0011] The flange is integrally connected to the bellows body, and other pipe fittings can be easily connected through the flange. The adjusting bolts are used to adjust the telescopic range of the bellows body. The protective shell is sleeved on the outside of the bellows body to protect the adjusting bolts to prevent the slender adjusting bolts from bending and ensure the structural stability of the adjusting bolts. The adjusting bolts pass through the protective shell, and the two ends of the adjusting bolts are connected to the mounting part. The mounting part, the straight pipe part and the bellows body are integrally connected. The protective shell consists of an intermediate shell and an end shell. The intermediate shell and the end shell are installed and connected by fasteners, and the end shell cooperates with the straight pipe part.

[0012] Furthermore, the intermediate housing comprises:

[0013] A fixed support seat, corresponding to each adjusting bolt, the fixed support seat being connected to the intermediate housing;

[0014] Install the support base and connect it to the fixed support base;

[0015] Wherein, the adjusting bolt is provided with a mounting shaft portion, and the mounting shaft portion is placed between the fixed support seat and the mounting support seat.

[0016] The fixed support seat is integrally connected to the intermediate shell, and the installation support seat is installed and connected to the fixed support seat through fasteners. After the installation shaft on the adjusting bolt cooperates with the fixed support seat and the installation support seat, the adjusting bolt can be movably installed in the intermediate shell and can ensure that the bolt rotates around its own axis.

[0017] Furthermore, limiting plates are arranged on both sides of the installation shaft, the limiting plates are installed and connected to the installation shaft, and the fixed support seat and the installation support seat are both provided with limiting grooves corresponding to the limiting plates.

[0018] After the mounting shaft is installed on the fixed support seat and the mounting support seat, the limit plate is installed on the mounting shaft, and the limit plate is adapted to the limit groove. The limit plate limits the movement of the adjusting bolt along the axial direction, thereby improving the installation stability of the adjusting bolt.

[0019] Furthermore, a wear-resistant part is arranged between the end shell and the straight pipe portion.

[0020] When the telescopic range of the bellows body is adjusted, relative movement occurs between the end shell and the straight pipe portion, and the wear-resistant part is used to improve the movement stability between the end shell and the straight pipe portion. The wear-resistant part is installed on the end shell.

[0021] Furthermore, the adjusting bolt comprises:

[0022] A threaded portion, disposed at one end of the adjusting bolt and threadedly connected to the corresponding mounting portion;

[0023] A first gear is disposed at the other end of the adjusting bolt, and the first gear is mounted on the corresponding mounting portion;

[0024] A gear ring, comprising an outer gear portion and an inner gear portion, wherein the outer gear portion is meshed with the first gear;

[0025] a second gear meshing with the inner gear portion;

[0026] The driving device is installed and connected with the second gear.

[0027] When the adjusting bolt rotates, the threaded connection between the threaded portion and the corresponding mounting portion controls the telescopic adjustment of the bellows body. The second gear is driven to rotate by the driving device. The second gear is engaged with the inner tooth core of the ring gear, and the outer tooth core is engaged with the first gear. When the ring gear rotates, the first gear is controlled to rotate, thereby realizing the simultaneous rotation of the adjusting bolts and controlling the high efficiency and stability of the bellows body during adjustment.

[0028] The gear ring is provided with a groove, and the mounting portion is provided with a frame body corresponding to the groove.

[0029] The groove cooperates with the frame to improve the stability of the gear ring during rotation.

[0030] The beneficial effects of this application are:

[0031] 1. The protective shell is sleeved on the outside of the bellows to protect the adjusting bolts, prevent the slender adjusting bolts from bending, and ensure the structural stability of the adjusting bolts.

[0032] 2. After the mounting shaft is installed on the fixed support seat and the mounting support seat, the limit plate is installed on the mounting shaft, and the limit plate is matched with the limit groove. The limit plate limits the movement of the adjusting bolt along the axial direction to improve the installation stability of the adjusting bolt.

[0033] 3. The driving device is used to drive the adjusting bolts to rotate simultaneously, thereby controlling the high efficiency and stability of the bellows body during adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the structure of the bellows device of the present application;

[0035] Figure 2 This is a schematic cross-sectional view of the bellows device of the present application;

[0036] Figure 3 This is a schematic diagram of the structure of the intermediate shell of the present application;

[0037] Figure 4 This is a schematic diagram of the structure of the gear ring of this application;

[0038] Figure 5 It is a schematic diagram of the partial structure of the frame of the present application;

[0039] The reference numerals in the figure are: 100, bellows body; 110, flange; 120, straight pipe portion; 140, mounting portion; 141, frame; 200, protective shell; 210, intermediate shell; 211, fixed support seat; 212, mounting support seat; 213, limiting groove; 220, end shell; 230, wear-resistant part; 300, adjusting bolt; 310, mounting shaft portion; 320, limiting plate; 330, threaded portion; 340, first gear; 350, gear ring; 351, external tooth portion; 352, internal tooth portion; 353, groove; 360, second gear. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0041] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0042] The following provides a detailed description of the embodiments of the present application through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0043] Embodiment 1:

[0044] like Figure 1 , Figure 2 As shown, the embodiment of the present application provides a bellows device, comprising:

[0045] The bellows body 100 is provided with flanges 110, and the flanges 110 are placed at both ends of the bellows body 100. The bellows body 100 is provided with a straight pipe portion 120;

[0046] The protective shell 200 is sleeved on the bellows body 100;

[0047] There are several adjusting bolts 300 which are evenly distributed around the axis of the bellows body 100;

[0048] Among them, the adjusting bolt 300 passes through the protective shell 200, and the protective shell 200 is provided with an intermediate shell 210 and an end shell 220. The end shell 220 is placed at both ends of the intermediate shell 210, and the intermediate shell 210 and the end shell 220 are connected. The straight pipe part 120 is provided with a mounting part 140, and the adjusting bolt 300 is installed on the mounting part 140.

[0049] The flange 110 is integrally connected to the bellows body 100, and the flange 110 is convenient for connecting other pipe fittings. The adjusting bolt 300 is used to adjust the telescopic range of the bellows body 100. The protective shell 200 is sleeved on the outside of the bellows body 100 to protect the adjusting bolt 300 to prevent the slender adjusting bolt 300 from bending and ensure the structural stability of the adjusting bolt 300. The adjusting bolt 300 passes through the protective shell 200, and both ends of the adjusting bolt 300 are connected to the mounting part 140. The mounting part 140, the straight pipe part 120 and the bellows body 100 are integrally connected. The protective shell 200 is composed of an intermediate shell 210 and an end shell 220. The intermediate shell 210 and the end shell 220 are installed and connected by fasteners, and the end shell 220 cooperates with the straight pipe part 120.

[0050] Embodiment 2:

[0051] like Figure 2 , Figure 3 As shown, the embodiment of the present application provides a bellows device. In addition to the above technical features, the intermediate housing 210 further includes:

[0052] A fixed support seat 211 corresponding to each adjusting bolt 300, wherein the fixed support seat 211 is connected to the intermediate housing 210;

[0053] An installation support base 212 is installed and connected to the fixed support base 211;

[0054] The adjusting bolt 300 is provided with a mounting shaft portion 310 , and the mounting shaft portion 310 is placed between the fixing support seat 211 and the mounting support seat 212 .

[0055] The fixed support seat 211 is integrally connected to the intermediate shell 210, and the mounting support seat 212 is installed and connected to the fixed support seat 211 through fasteners. After the mounting shaft 310 on the adjusting bolt 300 cooperates with the fixed support seat 211 and the mounting support seat 212, the adjusting bolt 300 can be movably installed in the intermediate shell 210, and can ensure that the bolt can rotate around its own axis.

[0056] Furthermore, limiting plates 320 are provided on both sides of the installation shaft portion 310 , and the limiting plates 320 are installed and connected to the installation shaft portion 310 . Both the fixed support seat 211 and the installation support seat 212 are provided with limiting grooves 213 corresponding to the limiting plates 320 .

[0057] After the mounting shaft 310 is mounted on the fixed support seat 211 and the mounting support seat 212, the limiting plate 320 is installed on the mounting shaft 310, and the limiting plate 320 is adapted to the limiting groove 213. The limiting plate 320 limits the movement of the adjusting bolt 300 along the axial direction, thereby improving the installation stability of the adjusting bolt 300.

[0058] Embodiment 3:

[0059] like Figure 2 As shown, an embodiment of the present application provides a bellows device, which, in addition to including the above-mentioned technical features, further comprises a wear-resistant part 230 disposed between the end shell 220 and the straight pipe portion 120 .

[0060] When the telescopic range of the corrugated tube body 100 is adjusted, relative movement occurs between the end shell 220 and the straight tube portion 120 , and the movement stability between the end shell 220 and the straight tube portion 120 is improved by the wear-resistant part 230 , which is installed on the end shell 220 .

[0061] Embodiment 4:

[0062] like Figure 2 , Figure 4 , Figure 5 As shown, the embodiment of the present application provides a bellows device, which, in addition to the above technical features, further comprises:

[0063] The threaded portion 330 is disposed at one end of the adjusting bolt 300 and is threadedly connected to the corresponding mounting portion 140;

[0064] A first gear 340 is disposed at the other end of the adjusting bolt 300, and the first gear 340 is mounted on the corresponding mounting portion 140;

[0065] The gear ring 350 includes an outer gear portion 351 and an inner gear portion 352 , wherein the outer gear portion 351 is meshed with the first gear 340 ;

[0066] The second gear 360 is meshed with the inner gear portion 352;

[0067] The driving device is installed and connected with the second gear 360.

[0068] When the adjusting bolt 300 rotates, the threaded connection between the threaded portion 330 and the corresponding mounting portion 140 controls the telescopic adjustment of the bellows body 100, and the second gear 360 is driven to rotate by the driving device. The second gear 360 is engaged with the inner tooth portion 352 of the ring gear 350, and the outer tooth portion 351 is engaged with the first gear 340. When the ring gear 350 rotates, the first gear 340 is controlled to rotate, thereby realizing the simultaneous rotation of the adjusting bolt 300 and controlling the high efficiency and stability of the bellows body 100 during adjustment.

[0069] The gear ring 350 is provided with a groove 353 , and the mounting portion 140 is provided with a frame 141 corresponding to the groove 353 .

[0070] The groove 353 cooperates with the frame 141 to improve the stability of the gear ring 350 during rotation.

[0071] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0072] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A bellows device, characterized in that: include: The bellows body (100) is provided with flanges (110), wherein the flanges (110) are placed at both ends of the bellows body (100), and the bellows body (100) is provided with a straight pipe portion (120); A protective shell (200) is sleeved on the bellows body (100); A plurality of adjusting bolts (300) are provided and are evenly distributed around the axis of the bellows body (100); The adjusting bolt (300) passes through the protective shell (200), the protective shell (200) is provided with an intermediate shell (210) and an end shell (220), the end shell (220) is placed at both ends of the intermediate shell (210), the intermediate shell (210) and the end shell (220) are connected, the straight pipe portion (120) is provided with a mounting portion (140), and the adjusting bolt (300) is mounted on the mounting portion (140).

2. The bellows device according to claim 1, characterized in that The intermediate housing (210) comprises: A fixed support seat (211), corresponding to each adjusting bolt (300), wherein the fixed support seat (211) is connected to the intermediate housing (210); An installation support seat (212) is installed and connected to the fixed support seat (211); Wherein, the adjusting bolt (300) is provided with a mounting shaft portion (310), and the mounting shaft portion (310) is placed between the fixing support seat (211) and the mounting support seat (212).

3. The bellows device according to claim 2, characterized in that Limiting plates (320) are arranged on both sides of the installation shaft portion (310), and the limiting plates (320) are installed and connected to the installation shaft portion (310). The fixed support seat (211) and the installation support seat (212) are both provided with limiting grooves (213) corresponding to the limiting plates (320).

4. The bellows device according to claim 3, characterized in that A wear-resistant part (230) is arranged between the end shell (220) and the straight pipe part (120).

5. The bellows device according to claim 4, characterized in that The adjusting bolt (300) comprises: A threaded portion (330) is disposed at one end of the adjusting bolt (300) and is threadedly connected to the corresponding mounting portion (140); A first gear (340) is disposed at the other end of the adjusting bolt (300), and the first gear (340) is mounted on a corresponding mounting portion (140); A gear ring (350), comprising an outer gear portion (351) and an inner gear portion (352), wherein the outer gear portion (351) is meshed with the first gear (340); A second gear (360) meshing with the inner gear portion (352); The driving device is installed and connected with the second gear (360).

6. The bellows device according to claim 5, characterized in that The gear ring (350) is provided with a groove (353), and the mounting portion (140) is provided with a frame body (141) corresponding to the groove (353).

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