Automobile corrugated pipe device capable of adapting to different pipe diameters

Abstract

The utility model relates to the technical field of automobile accessories, and discloses an automobile corrugated pipe device capable of adapting to different pipe diameters, which comprises a corrugated pipe body, a reducing mechanism is arranged on the surface of the corrugated pipe body, a fixing mechanism is arranged on the surface of the corrugated pipe body, the reducing mechanism comprises a first fixing ring, and a second fixing ring is arranged on the surface of the corrugated pipe body. The first fixing ring is fixed to the surface of the corrugated pipe body, a first fixing block is fixed to the surface of the first fixing ring, a first rubber pad is fixed to the surface of the first fixing block, and a second fixing ring is arranged on the surface of the first fixing ring. The device is provided with a first fixing ring and a first fixing block, the first fixing ring and the first fixing block are matched with a first rubber pad and a second fixing ring, the pipe diameter of the connecting position can be adjusted when the device works, the device can adapt to various pipe diameters when connected through the second fixing ring and a third fixing ring, the pipe diameter is reduced through the third fixing ring, and the pipe diameter is increased through the second fixing ring; and the working efficiency of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an automotive bellows device that can adapt to different pipe diameters. Background Technology

[0002] A bellows is a tubular elastic sensing element made of foldable corrugated sheets connected along the folding and stretching direction. Bellows are widely used in instrumentation, primarily as measuring elements in pressure gauges, converting pressure into displacement or force. Bellows have thin walls, high sensitivity, and a measurement range from tens of Pascals to tens of megapascals. Its open end is fixed, while the sealed end is in a free state, with auxiliary helical springs or leaf springs used to increase elasticity. During operation, it stretches along the length of the tube under internal pressure, causing the moving end to produce a displacement proportional to the pressure. The moving end drives a pointer to directly indicate the pressure magnitude. Bellows are often combined with displacement sensors to form pressure sensors that output electrical signals, and sometimes they are used as isolation elements. Because the stretching of a bellows requires a large volume change, its response speed is slower than that of a Bourdon tube. Bellows are suitable for measuring low pressure.

[0003] Flange connection is one of the most common connection methods for bellows. Flanges are fixed to production equipment or pipelines with bolts, offering advantages such as easy disassembly and good sealing. The flanges at both ends of the bellows are usually of the same specification. During installation, it is necessary to ensure that the flange plane fits well with the outer diameter of the bellows. Tighten the bolts with a uniform torque to avoid damage caused by uneven force.

[0004] However, the existing device still has shortcomings. It cannot adapt to different pipe diameters when connected, and cannot be adjusted when encountering mismatched pipe diameters. In addition, the existing device has insufficient fixing mechanism, which makes it prone to shaking when working in the vehicle. The cable ties used for fixing are prone to becoming brittle and breaking after a long time. To solve the above problems, we propose an automotive bellows device that can adapt to different pipe diameters. Utility Model Content

[0005] The purpose of this utility model is to provide an automotive bellows device that can adapt to different pipe diameters, so as to solve the problems mentioned in the background art that the existing devices cannot adapt to different pipe diameters and the fixing mechanism is insufficient.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automotive bellows device that can adapt to different pipe diameters, comprising a bellows body, wherein a diameter changing mechanism is provided on the surface of the bellows body, and a fixing mechanism is provided on the surface of the bellows body.

[0007] The variable diameter mechanism includes a first fixing ring, which is fixed to the surface of the bellows body. A first fixing block is fixed to the surface of the first fixing ring, and a first rubber pad is fixed to the surface of the first fixing block. A second fixing ring is provided on the surface of the first fixing ring. A second fixing block is fixed inside the first fixing ring, and a second rubber pad is fixed to the surface of the second fixing block. A third fixing ring is inserted inside the first fixing ring.

[0008] The fixing mechanism includes a fourth fixing ring, which is disposed on the surface of the corrugated pipe body. A connecting rod is fixed to the surface of the fourth fixing ring, and a locking block is fixed inside the fourth fixing ring.

[0009] Preferably, the surface of the first fixing ring is provided with threads, and the interior of the second fixing ring is provided with a threaded hole adapted to the first fixing ring. The first fixing ring is inserted into the interior of the second fixing ring, and the first fixing ring and the second fixing ring are threadedly connected, which facilitates the adjustment of the pipe diameter at the connection.

[0010] Preferably, the first fixing ring has a threaded hole inside, the third fixing ring has a thread on its surface, the third fixing ring is inserted into the first fixing ring, and the first fixing ring and the third fixing ring are threadedly connected to each other, which facilitates adjustment of the pipe diameter at the connection.

[0011] Preferably, the top of the first rubber pad abuts against the second fixing ring, and the top of the second rubber pad abuts against the third fixing ring, thereby improving the sealing performance of the connection.

[0012] Preferably, the height of the third fixing ring is higher than the height of the second fixing ring, and the third fixing ring protrudes from the surface of the first fixing ring to facilitate device connection.

[0013] Preferably, the fourth fixing ring has locking blocks arranged at equal intervals inside, and the locking blocks are locked inside the bellows body to prevent the bellows body from sliding.

[0014] Preferably, a connecting rod is fixed to the surface of the fourth fixing ring, and a circular through hole is provided inside the connecting rod to facilitate the fixing of the corrugated pipe body.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) The device is equipped with a first fixing ring and a first fixing block, which, together with the first rubber pad and the second fixing ring, allow the device to adjust the pipe diameter at the connection point during operation. The device can adapt to various pipe diameters during connection by means of the second fixing ring and the third fixing ring. The pipe diameter is reduced by means of the third fixing ring and expanded by means of the second fixing ring, thereby improving the working efficiency of the device.

[0017] (2) The device is equipped with a fourth fixing ring and a connecting rod, which, together with the locking block and the corrugated pipe body, can be fixed inside the vehicle to avoid shaking and improve the stability of the device. The locking block locks the corrugated pipe body, and the connecting rod fixes the corrugated pipe body, so that the corrugated pipe body will not shake, thus improving the working efficiency of the device. Attached image description:

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a side-view perspective view of the structure of this utility model;

[0020] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0021] Figure 3 This is a side perspective three-dimensional schematic diagram of the structure of the fourth fixing ring of this utility model;

[0022] Figure 4 This is an exploded view of the structure of the second fixing ring of this utility model;

[0023] Figure 5 This is an exploded view of the structure of the third fixing ring of this utility model.

[0024] In the figure: 1. Corrugated pipe body; 2. Variable diameter mechanism; 210. First fixing ring; 220. First fixing block; 230. First rubber pad; 240. Second fixing ring; 250. Second fixing block; 260. Second rubber pad; 270. Third fixing ring; 3. Fixing mechanism; 310. Fourth fixing ring; 320. Connecting rod; 330. Locking block. Detailed implementation method:

[0025] 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.

[0026] Please see Figure 1-4The present invention provides an embodiment of an automotive bellows device that can adapt to different pipe diameters, comprising a bellows body 1, a diameter changing mechanism 2 provided on the surface of the bellows body 1, and a fixing mechanism 3 provided on the surface of the bellows body 1.

[0027] The variable diameter mechanism 2 includes a first fixing ring 210, which is fixed to the surface of the bellows body 1. A first fixing block 220 is fixed to the surface of the first fixing ring 210, and a first rubber pad 230 is fixed to the surface of the first fixing block 220. A second fixing ring 240 is provided on the surface of the first fixing ring 210. A second fixing block 250 is fixed inside the first fixing ring 210, and a second rubber pad 260 is fixed to the surface of the second fixing block 250. A third fixing ring 270 is inserted inside the first fixing ring 210.

[0028] The fixing mechanism 3 includes a fourth fixing ring 310, which is disposed on the surface of the bellows body 1. A connecting rod 320 is fixed on the surface of the fourth fixing ring 310, and a locking block 330 is fixed inside the fourth fixing ring 310.

[0029] The surface of the first fixing ring 210 is provided with threads, and the interior of the second fixing ring 240 is provided with a threaded hole that matches the first fixing ring 210. The first fixing ring 210 is inserted into the interior of the second fixing ring 240, and the first fixing ring 210 and the second fixing ring 240 are threadedly connected. The interior of the first fixing ring 210 is provided with a threaded hole. The surface of the third fixing ring 270 is provided with threads, and the third fixing ring 270 is inserted into the interior of the first fixing ring 210. The first fixing ring 210 and the third fixing ring 270 are threadedly connected. The threaded connection between the second fixing ring 240 and the first fixing ring 210 enlarges the connection port of the bellows body 1, allowing the bellows body 1 to be connected to pipes with larger diameters. The threaded connection between the third fixing ring 270 and the first fixing ring 210 reduces the pipe opening of the bellows body 1, allowing the bellows body 1 to be connected to pipes with smaller diameters.

[0030] The top of the first rubber pad 230 abuts against the second fixing ring 240, and the top of the second rubber pad 260 abuts against the third fixing ring 270, so that the second fixing ring 240 and the third fixing ring 270 have better sealing performance after installation, and it is not easy for objects inside the corrugated pipe body 1 to leak out. The height of the third fixing ring 270 is higher than the height of the second fixing ring 240. The third fixing ring 270 protrudes from the surface of the first fixing ring 210, so that the outside of the third fixing ring 270 can also be connected to the pipe opening, improving the connection method of the device with pipes of different diameters.

[0031] The fourth fixing ring 310 has equidistant locking blocks 330 inside. The locking blocks 330 are locked inside the bellows body 1, which fixes the fourth fixing ring 310 to the bellows body 1 and prevents the bellows body 1 from sliding inside the locking blocks 330. A connecting rod 320 is fixed on the surface of the fourth fixing ring 310. The connecting rod 320 has a circular through hole inside, which makes it easy to fix the connecting rod 320 to the vehicle with bolts, so that the bellows body 1 will not shake.

[0032] Working principle: When this device is working, both the inner and outer sides of the third fixing ring 270 can adapt to different pipe diameters. Rotating the third fixing ring 270 removes it. Figure 5 As shown, the inner side of the first fixing ring 210 can adapt to a certain pipe diameter, and the outer side of the second fixing ring 240 can adapt to a certain pipe diameter. The second fixing ring 240 is rotated and removed, as shown. Figure 4 As shown, the outer side of the first fixing ring 210 can be fitted with a pipe diameter, allowing the device to adapt to different pipe diameters. The connecting rod 320 is fixed inside the vehicle with bolts, making the device less prone to shaking inside the vehicle. The above is the complete working principle of this utility model.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bellows device for automobiles that can adapt to different pipe diameters, comprising a bellows body (1), characterized in that: The surface of the corrugated pipe body (1) is provided with a diameter changing mechanism (2), and the surface of the corrugated pipe body (1) is provided with a fixing mechanism (3); The variable diameter mechanism (2) includes a first fixing ring (210), which is fixed to the surface of the bellows body (1). A first fixing block (220) is fixed to the surface of the first fixing ring (210), and a first rubber pad (230) is fixed to the surface of the first fixing block (220). A second fixing ring (240) is provided on the surface of the first fixing ring (210). A second fixing block (250) is fixed inside the first fixing ring (210), and a second rubber pad (260) is fixed to the surface of the second fixing block (250). A third fixing ring (270) is inserted inside the first fixing ring (210). The fixing mechanism (3) includes a fourth fixing ring (310), which is disposed on the surface of the bellows body (1). A connecting rod (320) is fixed on the surface of the fourth fixing ring (310), and a locking block (330) is fixed inside the fourth fixing ring (310).

2. The automotive bellows device adaptable to different pipe diameters according to claim 1, characterized in that: The surface of the first fixing ring (210) is provided with threads, and the interior of the second fixing ring (240) is provided with a threaded hole that is compatible with the first fixing ring (210). The first fixing ring (210) is inserted into the interior of the second fixing ring (240), and the first fixing ring (210) and the second fixing ring (240) are threadedly connected.

3. The automotive bellows device adaptable to different pipe diameters according to claim 1, characterized in that: The first fixing ring (210) has a threaded hole inside, and the surface of the third fixing ring (270) has a thread. The third fixing ring (270) is inserted into the first fixing ring (210), and the first fixing ring (210) and the third fixing ring (270) are threadedly connected.

4. The automotive bellows device adaptable to different pipe diameters according to claim 1, characterized in that: The top end of the first rubber pad (230) abuts against the second fixing ring (240), and the top end of the second rubber pad (260) abuts against the third fixing ring (270).

5. The automotive bellows device adaptable to different pipe diameters according to claim 1, characterized in that: The height of the third fixing ring (270) is higher than the height of the second fixing ring (240), and the third fixing ring (270) protrudes from the surface of the first fixing ring (210).

6. The automotive bellows device adaptable to different pipe diameters according to claim 1, characterized in that: The fourth fixing ring (310) has locking blocks (330) arranged at equal intervals inside, and the locking blocks (330) are locked inside the bellows body (1).

7. The automotive bellows device adaptable to different pipe diameters according to claim 1, characterized in that: A connecting rod (320) is fixed to the surface of the fourth fixing ring (310), and a circular through hole is provided inside the connecting rod (320).

Images