Corrugated pipe with telescopic function

Abstract

The utility model discloses a corrugated pipe with a telescopic function, which relates to the technical field of corrugated pipe design and comprises a corrugated pipe reinforcing main body, extension telescopic units and a sealing connecting unit, and extension corrugated pipes are arranged on the left side and the right side of the corrugated pipe reinforcing main body respectively. A sealing connection unit and an extension telescopic unit are arranged on the sides, away from the corrugated pipe reinforcing body, of the two extension corrugated pipes correspondingly, and each extension telescopic unit comprises a clamping groove, a clamping ring, a sealing rubber ring and an auxiliary fixing ring. The ends, close to the corrugated pipe reinforcing body, of the two extension corrugated pipes are each fixedly connected with a clamping ring, telescopic adjustment is more stable in the telescopic process, the telescopic effect is not affected, the sealing effect is improved in the external connection process, and use of the corrugated pipes is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows design, in particular to a bellows with a telescopic function. 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 be used as a measuring element of pressure measuring instruments to convert pressure into displacement or force. The wall of the bellows is thinner and the sensitivity is higher. The measuring range is from tens of Pa to tens of MPa. Its open end is fixed, the sealed end is in a free state, and an auxiliary spiral 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 pressure sensors with output as electrical quantity. Sometimes they are also used as isolation elements. In order to facilitate use, a bellows with telescopic function is required.

[0003] The existing bellows with telescopic function have the problem that the telescopic adjustment is unstable during telescoping, which affects the telescopic effect. When connected with the outside, the sealing effect is not good, which affects the use of the bellows. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a bellows with a telescopic function. When telescoping, the telescopic adjustment is more stable and does not affect the telescopic effect. When connected to the outside, the sealing effect is improved and does not affect the use of the bellows, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bellows with telescopic function, comprising a bellows reinforced body, an extended telescopic unit, and a sealing connection unit;

[0006] Bellows reinforcement body: extended bellows are respectively arranged on the left and right sides, and sealing connection units are respectively arranged on the sides of the two extended bellows away from the bellows reinforcement body;

[0007] The extended telescopic unit comprises a snap-in groove, a snap-in ring, a sealing rubber ring and an auxiliary fixing ring. The left and right end faces of the bellows reinforcement body are respectively provided with snap-in grooves. One end of each extended bellows located close to the bellows reinforcement body is respectively fixedly connected with a snap-in ring. The two snap-in rings are respectively fixedly connected with the corresponding snap-in grooves. The connection between the snap-in groove and the two extended bellows is respectively fixedly sleeved with a sealing rubber ring. The bellows reinforcement body is fixedly connected with the corresponding extended bellows through the sealing rubber ring. An auxiliary fixing ring is respectively fixedly sleeved on the two extended bellows at a position away from the bellows reinforcement body.

[0008] The bellows reinforcement body is used to connect the extended bellows, and the extended bellows is used for extension. The sealing connection unit is used to make a sealing connection to the outside. The snap-in groove and the snap-in ring are snapped to connect the bellows reinforcement body with the extended bellows. The sealing rubber ring is used to seal the connection between the bellows reinforcement body and the extended bellows to prevent water seepage. The auxiliary fixing ring is used to fix the extended sliding rod for use to assemble the bellows.

[0009] Furthermore, the extended telescopic unit includes an extended sliding rod, a card-connecting adjustment block and a limit baffle, and the upper, lower, left and right positions on the bellows reinforcement body are respectively fixedly connected to a card-connecting adjustment block, and the four card-connecting adjustment blocks are respectively placed in a ring on the bellows reinforcement body, one of the auxiliary fixing rings is located near the bellows reinforcement body and is fixedly connected to two equally spaced extended sliding rods, and the other auxiliary fixing ring is located near the bellows reinforcement body and is fixedly connected to two equally spaced extended sliding rods, the four extended sliding rods respectively correspond to the card-connecting adjustment blocks, each card-connecting adjustment block is respectively provided with a rectangular slide groove, each slide groove respectively penetrates the left and right sides of the corresponding card-connecting adjustment block, each extended sliding rod respectively penetrates the corresponding rectangular slide groove and is fixedly connected to the limit baffle, and each extended sliding rod is slidably connected between the card-connecting adjustment block and the corresponding auxiliary fixing ring.

[0010] The extended sliding rod is used to make the extension more stable, the card adjustment block is used to fix the extended sliding rod, so that the movement of the extended sliding rod is more stable, and the limit baffle is used to limit the extension so that the extended sliding rod can move for extended use.

[0011] Furthermore, the extension telescopic unit also includes a friction pattern, and the outer surface of the bellows reinforcement body is provided with a friction pattern.

[0012] The friction pattern is used to increase friction, thereby increasing the service life and making the device more stable during use.

[0013] Furthermore, the sealing connection unit includes an external connecting pipe, a connecting sleeve and a connecting sealing ring. A connecting sleeve is fixedly sleeved on each of the two extended bellows on the side away from the bellows reinforcement body. The inner surfaces of the two connecting sleeves are respectively provided with internal threads. A connecting sealing ring is fixedly clamped on each of the two connecting sleeves. An external connecting pipe is fixedly sleeved in each of the two connecting sealing rings. The outer surfaces of the two connecting sealing rings are respectively provided with external threads. The external threads on the two connecting sealing rings are respectively threadedly connected to the internal threads on the corresponding connecting sleeves. The two extended bellows are respectively connected to the external connecting pipe through the connecting sleeves.

[0014] The connecting sleeve and the connecting sealing ring are snap-fitted to facilitate the connection of the connecting sleeve and the connecting sealing ring with the extended bellows, thereby achieving a sealed connection.

[0015] Furthermore, the sealing connection unit also includes a sealing strip and a sealing groove. The two extended bellows are respectively provided with a sealing groove on the corresponding end faces. The corresponding side end faces of the two external connecting pipes are respectively fixedly connected with a sealing strip. The two sealing strips are respectively fixedly connected to the corresponding sealing grooves.

[0016] The sealing strip and the sealing groove are snapped together to facilitate the connection of the extended bellows to the external connecting pipe for sealing protection to prevent water seepage during the connection process and affect the use, thereby achieving a sealed connection.

[0017] Furthermore, the sealing connection unit also includes a sealing strip, and a sealing strip is fixedly sleeved on the connection between the two extended bellows and each connecting sleeve, and the two connecting sleeves are fixedly connected to the corresponding extended bellows through the sealing strip.

[0018] The sealing strip is used to connect the connecting sleeve with the extended bellows to make the seal of the extended bellows more secure, prevent water seepage, and facilitate sealing.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The bellows with telescopic function has the following advantages: an extended telescopic unit is provided, and the bellows reinforcement body is connected with the extended bellows by the clamping groove and the clamping ring. The sealing rubber ring is used to seal the connection between the bellows reinforcement body and the extended bellows to prevent water seepage. The auxiliary fixing ring is used to fix the extended sliding rod, and the extended sliding rod is used to make the extension more stable. The clamping adjustment block is used to fix the extended sliding rod to make the movement of the extended sliding rod more stable. The limit baffle is used to limit the position to allow the extended sliding rod to move. The friction pattern is used to increase the friction force to increase the service life when in use, thereby extending the use.

[0021] 2. The bellows with telescopic function has the following advantages: a sealing connection unit is provided, and the connecting sleeve and the connecting sealing ring are connected by clamping, so as to facilitate the connection of the connecting sleeve and the connecting sealing ring with the extended bellows, and the connecting sleeve and the connecting sealing ring are connected by clamping, so as to facilitate the connection of the connecting sleeve and the connecting sealing ring with the extended bellows, and the sealing strip is used to connect the connecting sleeve and the extended bellows, so as to make the extended bellows seal more firmly, so as to connect the pipeline with the outside;

[0022] 3. The bellows with telescopic function has the following advantages: when telescoping, the telescopic adjustment is more stable and does not affect the telescopic effect; when connected to the outside, the sealing effect is improved and does not affect the use of the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0024] Figure 2 For this utility model Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0025] Figure 3 This is a schematic diagram of the partial structure of the extended telescopic unit of the utility model;

[0026] Figure 4 It is a schematic diagram of the local structure of the reinforced main body of the corrugated pipe of the utility model.

[0027] In the figure: 1 bellows reinforced body, 2 extended bellows, 3 extended telescopic unit, 31 snap-in groove, 32 snap-in ring, 33 sealing rubber ring, 34 auxiliary fixing ring, 35 extended sliding rod, 36 snap-in adjustment block, 37 limit baffle, 38 friction pattern, 4 sealing connection unit, 41 external connection pipe, 42 connection shell, 43 connection sealing ring, 44 sealing strip, 45 sealing groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 , This embodiment provides a technical solution: a bellows with telescopic function, comprising a bellows reinforcement body 1, an extended telescopic unit 3, and a sealing connection unit 4;

[0030] The bellows reinforcement body 1: the left and right sides are respectively provided with extended bellows 2, and the two extended bellows 2 are respectively provided with sealing connection units 4 on one side away from the bellows reinforcement body 1;

[0031] The extended telescopic unit 3 comprises a snap-in groove 31, a snap-in ring 32, a sealing rubber ring 33 and an auxiliary fixing ring 34. The left and right end faces of the bellows reinforcement body 1 are respectively provided with snap-in grooves 31. One end of each extended bellows 2 located close to the bellows reinforcement body 1 is fixedly connected with a snap-in ring 32. The two snap-in rings 32 are respectively fixedly snap-ined with the corresponding snap-in grooves 31. The connection between the snap-in groove 31 and the two extended bellows 2 is respectively fixedly sleeved with a sealing rubber ring 33. The bellows reinforcement body 1 is fixedly connected to the corresponding extended bellows 2 through the sealing rubber ring 33. An auxiliary fixing ring 34 is respectively fixedly sleeved with the two extended bellows 2 at a position away from the bellows reinforcement body 1.

[0032] The bellows reinforcement body 1 is used to connect the extended bellows 2, and the extended bellows 2 is used for extension. The sealing connection unit 4 is used for sealing connection to the outside. The snap-in groove 31 and the snap-in ring 32 are snapped to connect the bellows reinforcement body 1 with the extended bellows 2. The sealing rubber ring 33 is used to seal the connection between the bellows reinforcement body 1 and the extended bellows 2 to prevent water seepage. The auxiliary fixing ring 34 is used to fix the extended sliding rod 35, so as to use it to assemble the bellows.

[0033] The extended telescopic unit includes an extended sliding rod 35, a card-connecting adjustment block 36 and a limit baffle 37. A card-connecting adjustment block 36 is fixedly connected to the upper, lower, left and right positions on the bellows reinforcement body 1 respectively. Four card-connecting adjustment blocks 36 are respectively placed in a ring on the bellows reinforcement body 1. One of the auxiliary fixing rings 34 is located near the bellows reinforcement body 1 and is fixedly connected to two equally spaced extended sliding rods 35. Another auxiliary fixing ring 34 is located near the bellows reinforcement body 1 and is fixedly connected to two equally spaced extended sliding rods 35. The four extended sliding rods 35 correspond to the card-connecting adjustment blocks 36 respectively. Each card-connecting adjustment block 36 is provided with a rectangular slide groove respectively. Each slide groove runs through the left and right sides of the corresponding card-connecting adjustment block 36 respectively. Each extended sliding rod 35 runs through the corresponding rectangular slide groove respectively and is fixedly connected to the limit baffle 37. Each extended sliding rod 35 is slidably connected between the card-connecting adjustment block 36 and the corresponding auxiliary fixing ring 34.

[0034] The extended sliding rod 35 is used to make the extension more stable, the clamping adjustment block 36 is used to fix the extended sliding rod 35, so that the movement of the extended sliding rod 35 is more stable, and the limiting baffle 37 is used to limit the extension sliding rod 35 so that the extension sliding rod 35 can move for extended use.

[0035] The extension telescopic unit 3 further comprises a friction pattern 38 , and the outer surface of the bellows reinforcement body 1 is provided with the friction pattern 38 .

[0036] The friction pattern 38 is used to increase friction, thereby increasing the service life and making the device more stable during use.

[0037] The sealing connection unit 4 includes an external connecting pipe 41, a connecting sleeve 42 and a connecting sealing ring 43. A connecting sleeve 42 is fixedly sleeved on each of the two extended bellows 2 on the side away from the bellows reinforcement body 1. The inner surfaces of the two connecting sleeves 42 are respectively provided with internal threads. A connecting sealing ring 43 is fixedly clamped on each of the two connecting sleeves 42. An external connecting pipe 41 is fixedly sleeved in each of the two connecting sealing rings 43. The outer surfaces of the two connecting sealing rings 43 are respectively provided with external threads. The external threads on the two connecting sealing rings 43 are respectively threadedly connected to the internal threads on the corresponding connecting sleeves 42. The two extended bellows 2 are respectively connected to the external connecting pipe 41 through the connecting sleeves 42.

[0038] The connecting sleeve 42 and the connecting sealing ring 43 are snap-fitted to facilitate the connection of the connecting sleeve 42 and the connecting sealing ring 43 with the extended bellows 2, thereby achieving a sealed connection.

[0039] The sealing connection unit 4 also includes a sealing strip 44 and a sealing groove 45. The two extended bellows 2 are each provided with a sealing groove 45 on the corresponding end faces. The corresponding side end faces of the two external connecting pipes 41 are each fixedly connected with a sealing strip 44. The two sealing strips 44 are respectively fixedly connected to the corresponding sealing grooves 45.

[0040] The sealing strip 44 and the sealing groove 45 are snap-fitted to facilitate sealing protection after the extended bellows 2 is connected to the external connection pipe 41 to prevent water seepage during the connection process and affect the use, thereby achieving a sealed connection.

[0041] The sealing connection unit 4 further includes a sealing strip. A sealing strip is fixedly sleeved at the connection point of each connecting sleeve 42 on the two extended bellows 2. The two connecting sleeves 42 are fixedly connected to the corresponding extended bellows 2 through the sealing strips.

[0042] The sealing strip is used to connect the connecting sleeve 42 with the extended bellows 2 to make the extended bellows 2 more firmly sealed, prevent water seepage, and facilitate sealing use.

[0043] The working principle of the bellows with telescopic function provided by the utility model is as follows: first, the bellows reinforcement body 1 is connected to the extended bellows 2 through the clamping groove 31 and the clamping ring 32, the sealing rubber ring 33 is used to seal the connection between the bellows reinforcement body 1 and the extended bellows 2 to prevent water seepage, the auxiliary fixing ring 34 is used to fix the extended sliding rod 35, the extended sliding rod 35 is used to make the extension more stable, the clamping adjustment block 36 is used to fix the extended sliding rod 35, so that the movement of the extended sliding rod 35 is more stable, and the limit baffle 37 is used to limit the position, so that the extended The sliding rod 35 moves, and the friction pattern 38 is used to increase the friction force, so as to increase the service life when in use, so as to extend the use. At the same time, the connecting shell 42 and the connecting sealing ring 43 are clamped to facilitate the connection between the connecting shell 42 and the connecting sealing ring 43 and the extended bellows 2. The connecting shell 42 and the connecting sealing ring 43 are clamped to facilitate the connection between the connecting shell 42 and the connecting sealing ring 43 and the extended bellows 2. The sealing strip is used to connect the connecting shell 42 to the extended bellows 2, so that the extended bellows 2 is sealed more firmly, so that the pipeline is connected to the outside.

[0044] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A bellows with telescopic function, characterized in that: It comprises a bellows reinforced body (1), an extended telescopic unit (3), and a sealing connection unit (4); The bellows reinforcement body (1): extended bellows (2) are respectively arranged on the left and right sides, and a sealing connection unit (4) is respectively arranged on the side of the two extended bellows (2) away from the bellows reinforcement body (1); The extended telescopic unit (3) comprises a clamping groove (31), a clamping ring (32), a sealing rubber ring (33) and an auxiliary fixing ring (34). The left and right end surfaces of the bellows reinforcement body (1) are respectively provided with a clamping groove (31). One end of the two extended bellows (2) located close to the bellows reinforcement body (1) is respectively fixedly connected with a clamping ring (32). The two clamping rings (32) are respectively fixedly clamped with the corresponding clamping groove (31). The connection between the clamping groove (31) and the two extended bellows (2) is respectively fixedly sleeved with a sealing rubber ring (33). The bellows reinforcement body (1) is fixedly connected to the corresponding extended bellows (2) through the sealing rubber ring (33). The two extended bellows (2) are respectively fixedly sleeved with an auxiliary fixing ring (34) at a position away from the bellows reinforcement body (1).

2. The bellows with telescopic function according to claim 1, characterized in that: The extended telescopic unit (3) comprises an extended sliding rod (35), a clamping adjustment block (36) and a limit baffle (37); a clamping adjustment block (36) is fixedly connected to each of the upper, lower, left and right positions on the bellows reinforcement body (1); four clamping adjustment blocks (36) are respectively placed in a ring shape on the bellows reinforcement body (1); one of the auxiliary fixing rings (34) is located near the bellows reinforcement body (1) and is fixedly connected to two extended sliding rods (35) at equal intervals; another auxiliary fixing ring (34) is located near the bellows reinforcement body (1) and is fixedly connected to the extended sliding rods (35) at equal intervals; The position of the pipe reinforcement body (1) is fixedly connected to two equally spaced extended sliding rods (35), and the four extended sliding rods (35) correspond to the clamping adjustment blocks (36) respectively. Each clamping adjustment block (36) is provided with a rectangular sliding groove, and each sliding groove passes through the left and right sides of the corresponding clamping adjustment block (36). Each extended sliding rod (35) passes through the corresponding rectangular sliding groove and is fixedly connected to the limit baffle (37). Each extended sliding rod (35) is slidably connected between the clamping adjustment block (36) and the corresponding auxiliary fixing ring (34).

3. The bellows with telescopic function according to claim 1, characterized in that: The extension telescopic unit (3) further comprises a friction pattern (38), and the outer surface of the bellows reinforcement body (1) is provided with the friction pattern (38).

4. The bellows with telescopic function according to claim 1, characterized in that: The sealing connection unit (4) comprises an external connection pipe (41), a connection sleeve (42) and a connection sealing ring (43); a connection sleeve (42) is fixedly sleeved on each of the two extended bellows (2) at a side away from the bellows reinforcement body (1); the inner surfaces of the two connection sleeves (42) are respectively provided with internal threads; a connection sealing ring (43) is fixedly clamped on each of the two connection sleeves (42); an external connection pipe (41) is fixedly sleeved in each of the two connection sealing rings (43); the outer surfaces of the two connection sealing rings (43) are respectively provided with external threads; the external threads on the two connection sealing rings (43) are respectively threadedly connected to the internal threads on the corresponding connection sleeves (42); and the two extended bellows (2) are respectively connected to the external connection pipe (41) through the connection sleeves (42).

5. The bellows with telescopic function according to claim 4, characterized in that: The sealing connection unit (4) further comprises a sealing strip (44) and a sealing groove (45); the two extended bellows (2) are respectively provided with a sealing groove (45) on the corresponding end faces; the corresponding end faces of the two external connection pipes (41) are respectively fixedly connected to a sealing strip (44); and the two sealing strips (44) are respectively fixedly connected to the corresponding sealing grooves (45).

6. The bellows with telescopic function according to claim 4, characterized in that: The sealing connection unit (4) further comprises a sealing strip, and a sealing strip is respectively fixedly sleeved at the connection point of each connecting sleeve (42) on the two extended bellows (2), and the two connecting sleeves (42) are respectively fixedly connected to the corresponding extended bellows (2) via the sealing strip.

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