Pressure-resistant metal bellows

Abstract

The utility model relates to metal bellows technical field discloses a kind of pressure-resistant metal bellows, including the pipe body as the bellows main body, the pipe body left and right ends are uniformly connected with ring body, the end of the ring body is uniformly connected with the connecting flange for connection, the inside of the connecting flange is provided with the bolt hole for fixed, the outside of the pipe body is provided with the compression ring for compression resistance, the outside of the pipe body is also provided with reinforcing strip, the outside of the reinforcing strip is provided with bayonet, the inner wall of the bayonet and the outer wall of compression ring are closely matched with each other. In the utility model, the compression resistance of bellows can be increased by the compression ring, the service life of bellows is improved, the outside of the compression ring of the reinforcing strip is set, the pressure received can be transmitted to the adjacent compression ring, to avoid single compression ring under pressure, further improve its compression resistance, the stop block is matched with the positioning groove, the bellows is preliminarily connected, and subsequent fixation is facilitated by bolt.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal bellows technical field especially relates to a pressure -resistant metal bellows. BACKGROUND

[0002] The bellows is a kind of pipe material with wave shape, usually made of plastic, bellows due to its unique structure, can keep the ability of expansion and contraction under bending or twisting, thereby being widely used in industry, medical treatment and other fields The bellows is a kind of pipe material with wave shape, usually made of plastic, bellows due to its unique structure, can keep the ability of expansion and contraction under bending or twisting, thereby being widely used in industry, medical treatment and other fields.

[0003] In prior art, in order to reduce the weight of metal bellows, facilitate transportation and installation, the thickness of metal bellows is thin, although the weight of bellows is reduced, but the pressure that can be withstood by itself is limited, service life is limited. UTILITY MODEL CONTENT

[0004] The utility model discloses a pressure -resistant metal bellows that the utility model discloses a pressure -resistant metal bellows, greatly increase the pressure resistance of bellows, increase the service life of bellows.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of pressure -resistant metal bellows, including as the main body of bellows pipe body, the pipe body left and right two ends are all fixedly connected with ring body, the end of the ring body is all fixedly connected with the connecting flange for connection, the inside of the connecting flange is provided with the bolt hole for fixing, the outside of the pipe body is provided with the compression ring for resisting pressure, the outside of the pipe body is also provided with reinforcing strip, the outside of the reinforcing strip is provided with bayonet, the inner wall of the bayonet and the outer wall of compression ring are closely matched.

[0007] Further, the outside of the ring body is provided with semicircle ring on two sides, and the two ends of the semicircle ring are fixedly connected with the connecting lug for fixing.

[0008] Further, the outside of the semicircle ring is fixedly connected with the positioning block for positioning.

[0009] Further, the left and right ends of the reinforcing strip are fixedly connected to the inside of the positioning block.

[0010] Further, the connecting flange outer wall of the pipe body left end is fixedly connected with the protective ring, and the inner side of the protective ring is fixedly connected with the stop block.

[0011] Further, a positioning groove is arranged on the left side of the connecting flange at the right end of the pipe body, and an opening is arranged on the outer side of the connecting flange at the end of the positioning groove.

[0012] Further, the outer wall of the stopper cooperates with the inner wall of the positioning groove.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] In the utility model, the compression resistance of the corrugated pipe is improved by the compression ring, and the service life of the corrugated pipe is prolonged.

[0015] In the utility model, when the corrugated pipe is spliced, the connecting flange at one end cooperates with the protective ring, and after the stopper passes through the opening, the corrugated pipe is rotated so that the stopper cooperates with the positioning groove, the corrugated pipe is preliminarily connected, and the bolt holes correspond to each other, so that subsequent fixation by bolts is facilitated, and the difficulty of splicing the corrugated pipe is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides an overall schematic view of a pressure-resistant metal corrugated pipe;

[0017] Figure 2 The utility model provides a protective ring schematic view of a pressure-resistant metal corrugated pipe;

[0018] Figure 3 The utility model provides a reinforcing strip schematic view of a pressure-resistant metal corrugated pipe;

[0019] Figure 4 For Figure 2 The utility model discloses a magnified view of A in the middle.

[0020] Legend:

[0021] 1, pipe body;2, ring body;3, connecting flange;4, bolt hole;5, compression ring;6, semicircle ring;7, connecting lug;8, positioning block;9, reinforcing strip;10, bayonet;11, protective ring;12, stopper;13, positioning groove;14, opening. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] With reference to Figures 1-3 The utility model provides an embodiment: a kind of pressure-resistant metal bellows, including as the main body of bellows pipe body 1, pipe body 1 left and right two ends are all fixedly connected with ring 2, the end of ring 2 is all fixedly connected with the connecting flange 3 for connection, the inside of connecting flange 3 is provided with the bolt hole 4 for fixed, the outside of pipe body 1 is provided with the compression ring 5 for compression resistance, the outside of pipe body 1 is also provided with reinforcing strip 9, the outside of reinforcing strip 9 is provided with bayonet 10, the inner wall of bayonet 10 is tightly matched with the outer wall of compression ring 5, the outside of ring 2 is provided with semicircle ring 6 in front and back, the two ends of semicircle ring 6 are all fixedly connected with the connecting lug 7 for fixed, the outside of semicircle ring 6 is fixedly connected with the positioning block 8 for positioning, the left and right ends of reinforcing strip 9 are fixedly connected in the inside of positioning block 8.

[0024] The compression ring 5 is circular and has a certain thickness, which can increase the compression resistance of the pipe body 1;The bayonet 10 on the reinforcing strip 9 cooperates with the outer wall of the compression ring 5, so that the compression ring 5 is embedded in the bayonet 10, and the reinforcing strip 9 is installed outside the compression ring 5, which is used to connect multiple compression rings 5. When the bellows is locally subjected to pressure, the reinforcing strip 9 can transmit the local pressure to the left and right compression rings 5, thereby distributing the pressure and improving the compression resistance;The connecting lug 7 cooperates with the bolt to fix the semicircle ring 6 outside the ring 2, and the left and right ends of the reinforcing strip 9 are fixedly connected to the inside of the positioning block 8, so that the reinforcing strip 9 is installed outside the pipe body 1 and cooperates with the compression ring 5;According to the needs, the reinforcing strip 9 and the positioning block 8 can be fixed between them. One is to provide through holes at the left and right ends of the reinforcing strip 9, and the other is to provide through holes at the middle of the positioning block 8. At this time, the reinforcing strip 9 and the semicircle ring 6 are connected by bolts;The second is to connect the reinforcing strip 9 and the semicircle ring 6 by welding;The positioning block 8 is used for positioning, which facilitates the uniform distribution of the reinforcing strip 9 outside the pipe body 1.

[0025] With reference to Figure 1 And Figure 4 The outer wall of the connecting flange 3 at the left end of the pipe body 1 is fixedly connected with a protective ring 11, the inner side of the protective ring 11 is fixedly connected with a stop block 12, the left side of the connecting flange 3 at the right end of the pipe body 1 is provided with a positioning groove 13, the outer side of the connecting flange 3 is provided with an opening 14 at the end of the positioning groove 13, and the outer wall of the stop block 12 cooperates with the inner wall of the positioning groove 13.

[0026] The connection of the traditional corrugated pipe is directly spliced by the connecting flange 3 and the bolt hole 4 arranged at both ends, and the corresponding bolt holes 4 on the adjacent corrugated pipes are always kept during splicing for the bolt to pass through the bolt hole 4 and be fixed, which is difficult to operate; the difficulty of splicing can be reduced by arranging the protection ring 11, the stop block 12, the positioning groove 13 and the opening 14, and when splicing, the connecting flange 3 at the right end of one of the corrugated pipes is matched with the protection ring 11 at the left end of the other corrugated pipe, in this process, the stop block 12 is aligned with the opening 14 by rotating and passing through the opening 14, then one of the corrugated pipes is rotated to make the stop block 12 match with the positioning groove 13, so that the adjacent corrugated pipes are preliminarily connected, and the bolt holes 4 arranged on the two corrugated pipes correspond to each other, which facilitates the subsequent fixing of the corrugated pipe by passing the bolt through the bolt hole 4.

[0027] Working principle: the compression resistance of the corrugated pipe can be increased by the compression resistance ring 5 arranged outside the pipe body 1; the corresponding two semicircular rings 6 are fixed outside the ring body 2 by the connecting lug 7, so that the reinforcing strip 9 is installed outside the pipe body 1, and the reinforcing strip 9 cooperates with the compression resistance ring 5, so that when pressure is applied, the reinforcing strip 9 can transmit the pressure to the adjacent compression resistance rings 5 on the left and right sides, so that the pressure is dispersed and the compression resistance is improved; when the corrugated pipes are spliced, the connecting flange 3 at the end is matched with the protection ring 11 arranged on the adjacent corrugated pipe, in the process, the stop block 12 is aligned with the opening 14, the connecting flange 3 is pushed into the protection ring 11, then one of the corrugated pipes is rotated to make the stop block 12 match with the positioning groove 13, and the bolt holes 4 correspond to each other, then the bolt is fixed, which reduces the difficulty of splicing.

[0028] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure-resistant metal corrugated pipe, characterized in that, The tube body (1) is a corrugated pipe body. Both ends of the tube body (1) are fixedly connected to ring bodies (2). The ends of the ring bodies (2) are fixedly connected to connecting flanges (3) for connection. The connecting flanges (3) are provided with bolt holes (4) for fixing. The tube body (1) is provided with a pressure-resistant ring (5) for pressure resistance. The tube body (1) is also provided with a reinforcing strip (9). The reinforcing strip (9) is provided with a bayonet (10) on its outer side. The inner wall of the bayonet (10) is tightly fitted with the outer wall of the pressure-resistant ring (5).

2. The pressure-resistant metal corrugated pipe according to claim 1, characterized in that: The outer front and rear sides of the ring body (2) are provided with semi-circular rings (6), and the two ends of the semi-circular rings (6) are fixedly connected with connecting ears (7) for fixing.

3. The pressure-resistant metal corrugated pipe according to claim 2, characterized in that: The outer side of the semicircular ring (6) is fixedly connected to a positioning block (8) for positioning.

4. The pressure-resistant metal corrugated pipe according to claim 1, characterized in that: The left and right ends of the reinforcing strip (9) are fixedly connected to the inside of the positioning block (8).

5. A pressure-resistant metal corrugated pipe according to claim 1, characterized in that: A protective ring (11) is fixedly connected to the outer wall of the connecting flange (3) at the left end of the pipe body (1), and a stop block (12) is fixedly connected to the inner side of the protective ring (11).

6. A pressure-resistant metal corrugated pipe according to claim 5, characterized in that: A positioning groove (13) is provided on the left side of the connecting flange (3) at the right end of the pipe body (1), and an opening (14) is provided on the outer side of the connecting flange (3) at the end of the positioning groove (13).

7. A pressure-resistant metal corrugated pipe according to claim 5, characterized in that: The outer wall of the stop (12) fits into the inner wall of the positioning groove (13).

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