Automobile bellows connector

Abstract

The present invention relates to the technical field of corrugated pipes, and discloses an automobile bellows connector, comprising a bellows I, one end of which is threadedly sleeved with a fixing plate, both ends of which are fixedly installed with limit plates, a positioning cylinder is fixedly installed on the top of the limit plate, the inner cavity of the positioning cylinder is fixedly sleeved with a telescopic spring, and one end of the telescopic spring is fixedly connected with a positioning rod. The automobile bellows connector prevents the fixing plate from falling off due to long-term use of the fixing plate through the cooperation of the bellows I and the fixing plate, prevents the bellows I from falling off by the cooperation of the limit plate and the positioning rod, and makes use of the effect of the telescopic spring to make the bellows I damaged and be replaced in time to avoid unnecessary accidents, and prevents the bellows I and the bellows II from falling off during use by the cooperation of the threaded pipe and the fixing block, causing air leakage between the bellows and reducing the exhaust efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated pipes, in particular to an automobile corrugated pipe connector. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to serve as a measuring element for pressure measuring instruments to convert pressure into displacement or force. The bellows has a thin wall and high sensitivity. The measuring range is from tens of Pa to tens of MPa. Its open end is fixed and the sealed end is in a free state. An auxiliary coil spring or reed is used to increase the elasticity. When working, it stretches along the length of the tube under the action of internal pressure, causing the movable end to produce a displacement that is related to the pressure. The movable end drives the pointer to directly indicate the size of the pressure. Bellows are often combined with displacement sensors to form a pressure sensor with an output of electrical quantity. It is sometimes also used as an isolation element. Since the extension of the bellows requires a large volume change, its response speed is lower than that of the Bourdon tube. Bellows are suitable for measuring low pressure.

[0003] When a corrugated pipe is used in a car, one corrugated pipe cannot meet the demand and the corrugated pipe needs to be lengthened. At this time, a bellows connector is needed. The existing bellows connector will leak air between the bellows after long-term use due to the sealing ring inside the bellows connector, affecting the use of the bellows. At the same time, the bellows connector will fall off the bellows. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the present invention provides an automobile bellows connector with the advantages of good sealing and firm connection. It solves the problem that the bellows connector, after long-term use, the sealing ring inside the bellows connector will cause air leakage between the bellows, affecting the use of the bellows, and the bellows connector will fall off the bellows.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose of good sealing and firm connection, the present invention provides the following technical solutions: an automobile bellows connector, comprising a bellows I, one end of the bellows I is threadedly sleeved with a fixing plate, both ends of the fixing plate are fixedly installed with a limiting plate, the top of the limiting plate is fixedly installed with a positioning cylinder, the inner cavity of the positioning cylinder is fixedly sleeved with a telescopic spring, one end of the telescopic spring is fixedly connected to a positioning rod, one end of the positioning rod passes through the positioning cylinder and extends to the outside of the positioning cylinder, one end of the positioning rod is movably sleeved on the limiting rod, one end of the positioning rod passes through the limiting rod and extends to the outside of the limiting rod, the top of the limiting rod is movably sleeved with a pushing block, the side of the pushing block is fixedly connected with a pushing rod, one end of the pushing rod passes through the limiting rod and extends to the inside of the limiting rod, The side of the pushing rod is movably connected to a transmission rod, one end of the transmission rod is fixedly connected to a positioning device, one end of the transmission rod passes through the positioning device and extends to the interior of the positioning device, one end of the transmission rod is fixedly connected to a compression spring located inside the positioning device, one end of the compression spring is fixedly connected to a limiting block, one end of the limiting block passes through the positioning device and extends to the outside of the positioning device, the bottom of the positioning device is fixedly installed with a support rod located on the side of the fixed plate, one end of the support rod is fixedly connected to a threaded tube, the interior of the threaded tube is fixedly sleeved with a sealing ring, the side of the sealing ring is threadedly sleeved with a fixed block located inside the threaded tube, the side of the fixed block is fixedly installed with a connecting plate located at one end of the limiting rod, and the side of the connecting plate is threadedly sleeved with a bellows II.

[0008] Preferably, the sealing ring is a high temperature resistant ring, and positioning blocks located on the inner ring of the threaded tube are arranged in a ring shape around the sealing ring.

[0009] Preferably, an anti-slip layer is fixedly mounted on the limit block, one end of the limit block is perpendicular to the side surface of the threaded tube, and one end of the limit block is movably connected to the side surface of the threaded tube.

[0010] Preferably, a positioning pin is fixedly installed on the side of the limiting rod, one end of the pushing rod passes through the positioning pin and extends to the outside of the positioning pin, one end of the pushing rod is perpendicular to the positioning pin, and one end of the pushing rod is movably connected to the positioning pin.

[0011] Preferably, there are four push rods, and the four push rods form a group of two, and the two groups are symmetrically distributed on both sides of the limiting rod.

[0012] Preferably, there are four support rods, and the four support rods form a group of two, and the two groups are symmetrically distributed at the bottom of the four positioning cylinders.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides an automotive bellows connector with the following beneficial effects:

[0015] 1. The automobile bellows connector prevents the fixing plate from falling off due to long-term use through the cooperation between the bellows I and the fixing plate. The cooperation between the limit plate and the positioning rod prevents the bellows I from falling off. The effect of the telescopic spring ensures that the bellows I can be replaced in time if damaged, avoiding unnecessary accidents. The cooperation between the threaded pipe and the fixing block prevents the bellows I and the bellows II from falling off during use, causing air leakage between the bellows and reducing the exhaust efficiency.

[0016] 2. The automotive bellows connector prevents the sealing ring from shifting from its original position when impacted through the cooperation of the sealing ring and the positioning block. The cooperation of the pushing block and the pushing rod enables the transmission rod to push the compression spring to drive the limit block to clamp the threaded tube to prevent the threaded tube from falling off. The support rod prevents the positioning device from falling off the threaded tube under the force. The positioning pin prevents the pushing rod from rocking back and forth under the limit rod when moving, which affects the limit block from clamping the threaded tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the bellows structure from a top view;

[0019] Figure 3 for Figure 1 A partial enlarged schematic diagram in the middle;

[0020] Figure 4 for Figure 1 A partial enlarged schematic diagram of point B in the middle.

[0021] In the figure: 1 bellows I, 2 fixing plate, 3 limiting plate, 4 positioning cylinder, 5 telescopic spring, 6 positioning rod, 7 limiting rod, 8 pushing block, 9 pushing rod, 10 transmission rod, 11 positioning device, 12 compression spring, 13 limiting block, 14 support rod, 15 threaded pipe, 16 sealing ring, 17 positioning block, 18 fixing block, 19 connecting plate, 20 bellows II, 21 positioning pin. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4A car bellows connector includes a bellows Ⅰ1, one end of the bellows Ⅰ1 is threadedly sleeved with a fixing plate 2, both ends of the fixing plate 2 are fixedly installed with a limit plate 3, the top of the limit plate 3 is fixedly installed with a positioning cylinder 4, the inner cavity of the positioning cylinder 4 is fixedly sleeved with a telescopic spring 5, one end of the telescopic spring 5 is fixedly connected with a positioning rod 6, one end of the positioning rod 6 passes through the positioning cylinder 4 and extends to the outside of the positioning cylinder 4, one end of the positioning rod 6 is movably sleeved with a limit rod 7, and a positioning pin 21 is fixedly installed on the side of the limit rod 7, one end of the push rod 9 passes through the positioning pin 21 and extends to the outside of the positioning pin 21, one end of the push rod 9 is perpendicular to the positioning pin 21, and one end of the push rod 9 is movably connected to the positioning pin 21 to prevent the push rod 9 from moving downward. 9 rocks back and forth under the limit rod 7, causing the limit block 13 to loosen the threaded tube 15, resulting in the long-term use of the threaded tube 15 and the loosening of the sealing ring 16, which affects the use of the bellows and improves the stability of the movement of the push rod 9. One end of the positioning rod 6 passes through the limit rod 7 and extends to the outside of the limit rod 7. The top of the limit rod 7 is movably covered with a push block 8, and the side of the push block 8 is fixedly connected to the push rod 9. One end of the push rod 9 is an oblique design. There are four push rods 9, and the four push rods 9 are two in a group. The two groups are symmetrically distributed on both sides of the limit rod 7. The oblique design of the push rod 9 makes it possible for the push rod 9 to move downward, the limit block 13 to clamp the threaded tube 15 more, preventing the threaded tube 15 from falling off. One end of the push rod 9 passes through the limit rod 7 and extends The lateral surface of the push rod 9 is movably connected to the transmission rod 10, and one end of the transmission rod 10 is fixedly connected to the positioning device 11. One end of the transmission rod 10 passes through the positioning device 11 and extends to the interior of the positioning device 11. One end of the transmission rod 10 is fixedly connected to a compression spring 12 located inside the positioning device 11. One end of the compression spring 12 is fixedly connected to a limiting block 13. An anti-slip layer is fixedly installed on the limiting block 13. One end of the limiting block 13 is perpendicular to the side surface of the threaded tube 15, and one end of the limiting block 13 is movably connected to the side surface of the threaded tube 15 to prevent the limiting block 13 from slipping when clamping the threaded tube 15, causing the threaded tube 15 to loosen. At the same time, the friction between the limiting block 13 and the threaded tube 15 is increased, thereby improving the limit block 13. The stability of the positioning device 11 is improved by fixing one end of the limit block 13 through the positioning device 11 and extending to the outside of the positioning device 11. The bottom of the positioning device 11 is fixedly installed with a support rod 14 located on the side of the fixed plate 2. There are four support rods 14, and two of the four support rods 14 form a group. The two groups are symmetrically distributed at the bottom of the four positioning cylinders 4 to prevent the positioning cylinders 4 from falling on the side of the threaded tube 15. The role of the support rod 14 is used to improve the stability of the positioning cylinder 4. One end of the support rod 14 is fixedly connected to the threaded tube 15. The internal fixed sleeve of the threaded tube 15 is equipped with a sealing ring 16. The sealing ring 16 is a high-temperature resistant ring. The positioning blocks 17 located on the inner circle of the threaded tube 15 are arranged in an annular manner around the sealing ring 16 to prevent the sealing ring 16 from being used for a long time and being subjected to impact.The seal ring 16 shifts from its original position, causing air leakage at the junction of the bellows I1 and bellows II 20, affecting the bellows' sealing performance. To prevent the seal ring 16 from being subjected to high temperatures for a long time, which could cause corrosion, and to improve the stability of the seal ring 16, the side of the seal ring 16 is threadedly connected to a fixing block 18 located inside the threaded tube 15. A connecting plate 19 located at one end of the limiting rod 7 is fixedly mounted on the side of the fixing block 18. The side of the connecting plate 19 is threadedly connected to the side of the bellows II 20.

[0024] During operation, first place the sealing ring 16 in the threaded tube 15, screw the bellows I1 into the fixed plate 2, screw the bellows II 20 into the connecting plate 19, push the limit plate 3, the telescopic spring 5 bounces the positioning rod 6 out of the outside of the limit rod 7, fix the limit plate 3 and the limit rod 7, press the push block 8, the push rod 9 squeezes the transmission rod 10, and the compression spring 12 bounces the limit block 13 to clamp the threaded tube 15.

[0025] In summary, the automobile bellows connector, through the cooperation of the bellows I and the fixing plate 2, prevents the fixing plate 2 from falling off due to long-term use, utilizes the cooperation of the limit plate 3 and the positioning rod 6 to prevent the bellows I1 from falling off, utilizes the effect of the telescopic spring 5, so that the bellows I1 is damaged and can be replaced in time to avoid unnecessary accidents, utilizes the cooperation of the threaded tube 15 and the fixing block 18 to prevent the bellows I1 and the bellows II 20 from falling off during use, causing air leakage between the bellows and reducing the exhaust efficiency; through the cooperation of the sealing ring 16 and the positioning block 17, the sealing ring 16 is prevented from deviating from its original position when it is impacted, and the By cooperating with the pushing block 8 and the pushing rod 9, the transmission rod 10 pushes the compression spring 12 to drive the limit block 13 to clamp the threaded tube 15 to prevent the threaded tube 15 from falling off. The support rod 14 is used to prevent the positioning device 11 from falling off the threaded tube 15 under the force. The positioning pin 21 is used to prevent the pushing rod 9 from rocking back and forth under the limit rod 7 when moving, thereby affecting the limit block 13 from clamping the threaded tube 15. The problem of the bellows connector being that the sealing ring 16 in the bellows connector will leak air between the bellows after long-term use, affecting the use of the bellows, and the bellows connector will fall off the bellows is solved.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automobile bellows connector, comprising a bellows Ⅰ (1), characterized in that: One end of the bellows I (1) is threadedly sleeved with a fixing plate (2), both ends of the fixing plate (2) are fixedly mounted with a limiting plate (3), the top of the limiting plate (3) is fixedly mounted with a positioning tube (4), the inner cavity of the positioning tube (4) is fixedly sleeved with a telescopic spring (5), one end of the telescopic spring (5) is fixedly connected with a positioning rod (6), one end of the positioning rod (6) penetrates the positioning tube (4) and extends to the outside of the positioning tube (4), one end of the positioning rod (6) is movably sleeved with a limiting rod (7), one end of the positioning rod (6) penetrates the limiting rod (7) and extends to the outside of the limiting rod (7), the top of the limiting rod (7) is movably sleeved with a pushing block (8), the side of the pushing block (8) is fixedly connected with a pushing rod (9), one end of the pushing rod (9) penetrates the limiting rod (7) and extends to the inside of the limiting rod (7), the side of the pushing rod (9) is movably connected with a transmission rod (10), one end of the transmission rod (10) is fixedly connected with a positioning device (11), one end of the transmission rod (10) passes through the positioning device (11) and extends to the interior of the positioning device (11), one end of the transmission rod (10) is fixedly connected to a compression spring (12) located inside the positioning device (11), one end of the compression spring (12) is fixedly connected to a limit block (13), one end of the limit block (13) passes through the positioning device (11) and extends to the outside of the positioning device (11), a support rod (14) located on the side of the fixing plate (2) is fixedly installed at the bottom of the positioning device (11), one end of the support rod (14) is fixedly connected to a threaded tube (15), a sealing ring (16) is fixedly sleeved inside the threaded tube (15), a fixed block (18) located inside the threaded tube (15) is threadedly sleeved on the side of the sealing ring (16), a connecting plate (19) located at one end of the limit rod (7) is fixedly installed on the side of the fixing block (18), and a bellows II (20) is threadedly sleeved on the side of the connecting plate (19).

2. The automotive bellows connector according to claim 1, characterized in that: The sealing ring (16) is a high temperature resistant ring, and positioning blocks (17) located on the inner ring of the threaded tube (15) are arranged in a ring around the sealing ring (16).

3. The automotive bellows connector according to claim 1, characterized in that: An anti-slip layer is fixedly mounted on the limit block (13), one end of the limit block (13) and the side surface of the threaded tube (15) are perpendicular to each other, and one end of the limit block (13) is movably connected to the side surface of the threaded tube (15).

4. The automotive bellows connector according to claim 1, characterized in that: A positioning pin (21) is fixedly mounted on the side of the limiting rod (7), one end of the pushing rod (9) passes through the positioning pin (21) and extends to the outside of the positioning pin (21), one end of the pushing rod (9) and the positioning pin (21) are perpendicular to each other, and one end of the pushing rod (9) is movably connected to the positioning pin (21).

5. The automotive bellows connector according to claim 1, characterized in that: There are four push rods (9), and the four push rods (9) are grouped into two, with the two groups symmetrically distributed on both sides of the limiting rod (7).

6. The automotive bellows connector according to claim 1, characterized in that: There are four support rods (14), and two of the four support rods (14) form a group, with the two groups being symmetrically distributed at the bottoms of the four positioning cylinders (4).

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