CN211145721U

CN211145721U - Adjustable elbow joint

Info

Publication number: CN211145721U
Application number: CN201921959952.0U
Authority: CN
Inventors: 郑志连; 徐华乐
Original assignee: Laian Buffalo Hvac Equipment Co ltd
Current assignee: Laian Buffalo Hvac Equipment Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-31
Anticipated expiration: 2029-11-12

Abstract

The utility model relates to an adjustable type elbow fitting, including flange, connecting pipe and adjusting device, flange quantity be two, the connecting pipe is installed in the flange outside, the connecting pipe is the arc structure, installs adjusting device between the adjacent connecting pipe. The utility model discloses can solve current elbow joint when using, elbow joint's angle is fixed usually, can only connect to the pipeline of fixed angle, and the result of use is poor, connect inconveniently, needs to produce non-corresponding elbow to the angle of buckling of difference, leads to a difficult problem such as use cost height of return bend, has excellent in use effect, easy operation, can connect advantages such as to the pipeline of different angles.

Description

Adjustable elbow joint

Technical Field

The utility model relates to a return bend field, in particular to adjustable type return bend.

Background

In a piping system, a bend is a pipe that changes the direction of a pipe. The angle is divided into 45 degrees and 90 degrees and 180 degrees, which are the most commonly used, and other abnormal angle elbows of 60 degrees and the like are also included according to engineering requirements. The elbow is made of cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, nonferrous metal, plastics, etc. The connection mode with the pipeline is as follows: direct welding (the most common way) flange connections, hot melt connections, electrofusion connections, screw connections, socket connections, etc.

At present, when the existing elbow joint is used, the angle of the elbow joint is usually fixed, the elbow joint can only be connected with a pipeline at a fixed angle, the use effect is poor, the connection is inconvenient, corresponding elbows are required to be produced according to different bending angles, and the use cost of the elbow is high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model discloses can solve current elbow joint when using, elbow joint's angle is fixed usually, only can connect to the pipeline of fixed angle, and the result of use is poor, connect inconveniently, needs to produce non-corresponding elbow to the angle of buckling of difference, leads to the difficult problem such as use cost height of return bend.

(II) technical scheme

In order to realize the above-mentioned purpose, the utility model discloses a following technical scheme, an adjustable type elbow fitting, including flange, connecting pipe and adjusting device, flange quantity be two, the connecting pipe is installed in the flange outside, the connecting pipe is the arc structure, installs adjusting device between the adjacent connecting pipe.

Adjusting device include go-between, joint ring, locking mechanism, flexible tube, link and locking screw, the connecting pipe the inner outside install the go-between, joint ring is installed to the inner inboard of connecting pipe, be provided with the flexible tube between the joint ring, the flexible tube is connected with go-between and joint ring respectively through the screw, install locking mechanism between the go-between upper end, the link is installed to the go-between lower extreme, through locking screw fixed connection between the link, concrete during operation, the joint ring can carry out the chucking to the flexible tube inboard, and then can guarantee flexible tube and connecting pipe sealing connection, the link can adjust the angle between two connecting pipes through locking screw, locking mechanism can lock fixedly to the connecting pipe after adjusting, and then can realize carrying out the function of connecting to the pipeline of different angles.

The locking mechanism comprises a fixed block, a connecting plate, a locking seat, a threaded seat, a locking rod and a locking plate, the fixed block is arranged at the upper end of the connecting ring positioned at the left side of the flexible pipe, the connecting plate is arranged at the right end of the fixed block, the locking seat is arranged at the upper end of the connecting ring positioned at the right side of the flexible pipe, a clamping groove is arranged in the middle of the locking seat, the connecting plate is connected with the clamping groove in a sliding fit manner, the threaded seat is arranged in the middle of the upper end of the locking seat, the locking rod is connected inside the threaded seat in a threaded fit, when the connecting frame adjusts the angle between the two connecting pipes through the locking screw, the fixing block drives the connecting plate to slide in the locking seat, then the locking rod is rotated in a manual mode, the locking rod drives the locking plate to move downwards through the threaded seat, and the locking plate locks and fixes the connecting plate.

As an optimal technical scheme of the utility model, joint ring cross-section be L type structure, be provided with sealing rubber pad on the joint intra-annular wall, sealing rubber pad can guarantee the leakproofness of being connected between flexible pipe and the joint ring, prevents the phenomenon of gas leakage, does benefit to elbow fitting's long-time use.

As an optimal technical scheme of the utility model, the connecting plate be the arc structure, the connecting plate middle part is provided with the arc recess, arc recess internally mounted friction plate, friction between friction plate can increase and the locking plate guarantees the stability between friction plate and the locking plate, avoids the junction to take place not hard up phenomenon.

As an optimal technical scheme of the utility model, the flexible pipe be flexible bellows, and the inside and outside surface of flexible pipe all coats and has anticorrosive coating, anticorrosive coating can effectual assurance flexible pipe's life, avoids the flexible pipe to receive external environment to influence to take place to damage.

As an optimized technical scheme of the utility model, the cross-section of locking seat be U type structure, the inside ball of evenly installing of locking seat.

(III) advantageous effects

1. The utility model provides an adjustable elbow fitting, it adopts the design of the adjustable type of angle, can connect to the pipeline of different angles, and the result of use is poor, connect inconveniently, can avoid producing corresponding elbow to different bending angles simultaneously, practices thrift manufacturing cost, does benefit to the enterprise and uses;

2. the utility model provides an adjustable type elbow fitting, its locking mechanism can be effectual locks fixedly to elbow fitting's angle, and easy operation is convenient, connection stability is strong, avoids the junction to take place the phenomenon that drops.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 1 at A according to the present invention;

fig. 4 is a schematic top view of the connection plate of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 1 to 4, an adjustable elbow joint includes a connecting flange 1, a connecting pipe 2 and an adjusting device 3, the number of the connecting flanges 1 is two, the connecting pipe 2 is installed outside the connecting flange 1, the connecting pipe 2 is an arc-shaped structure, and the adjusting device 3 is installed between adjacent connecting pipes 2.

The adjusting device 3 comprises a connecting ring 31, a clamping ring 32, a locking mechanism 33, a flexible pipe 34, a connecting frame 35 and a locking screw 36, wherein the connecting ring 31 is installed at the outer side of the inner end of the connecting pipe 2, the clamping ring 32 is installed at the inner side of the inner end of the connecting pipe 2, the flexible pipe 34 is arranged between the clamping rings 32, the flexible pipe 34 is respectively connected with the connecting ring 31 and the clamping ring 32 through screws, the locking mechanism 33 is installed between the upper end of the connecting ring 31, the connecting frame 35 is installed at the lower end of the connecting ring 31, the connecting frames 35 are fixedly connected through the locking screw 36, during specific work, the clamping ring 32 can clamp the inner side of the flexible pipe 34, further the flexible pipe 34 is ensured to be in sealing connection with the connecting pipe 2, the connecting frame 35 can adjust the angle between the two connecting pipes 2 through the locking screw 36, the locking mechanism, and then can realize the function of connecting the pipeline of different angles.

The joint ring 32 cross-section be L type structure, be provided with sealing rubber pad on the joint ring 32 inside wall, sealing rubber pad can guarantee the leakproofness of being connected between flexible pipe 34 and the joint ring 32, prevents the phenomenon of gas leakage, does benefit to elbow fitting's long-time use.

The locking mechanism 33 comprises a fixed block 331, a connecting plate 332, a locking seat 333, a threaded seat 334, a locking rod 335 and a locking plate 336, the fixed block 331 is mounted at the upper end of the connecting ring 31 positioned at the left side of the flexible tube 34, the connecting plate 332 is mounted at the right end of the fixed block 331, the locking seat 333 is mounted at the upper end of the connecting ring 31 positioned at the right side of the flexible tube 34, a clamping groove is arranged at the middle part of the locking seat 333, the connecting plate 332 is connected with the clamping groove in a sliding fit manner, the threaded seat 334 is arranged at the middle part of the upper end of the locking seat 333, the locking rod 335 is connected inside the threaded seat 334 in a threaded fit manner, the locking plate 336 is mounted at the lower end of the locking rod 335, when the connecting frame 35 adjusts the angle between the two connecting tubes 2 through the locking screw 36 during specific work, the locking bar 335 drives the locking plate 336 to move downwards through the screw seat 334, and the locking plate 336 locks and fixes the connecting plate 332.

The connecting plate 332 is of an arc-shaped structure, an arc-shaped groove 337 is formed in the middle of the connecting plate 332, a friction plate 338 is arranged in the arc-shaped groove 337, friction between the friction plate 338 and the locking plate 336 can be increased, stability between the friction plate 338 and the locking plate 336 is guaranteed, and looseness of a connecting part is avoided.

The cross-section of the locking seat 333 is of a U-shaped structure, balls are uniformly arranged in the locking seat 333, and the balls can effectively reduce friction between the connecting plate 332 and the locking seat 333 and facilitate quick adjustment of the connecting pipe 2.

The flexible pipe 34 is a flexible corrugated pipe, and the inner side and the outer side of the flexible pipe 34 are coated with anti-corrosion coatings, so that the service life of the flexible pipe 34 can be effectively ensured by the anti-corrosion coatings, and the flexible pipe 34 is prevented from being damaged by the influence of the external environment.

The utility model discloses the operating procedure at specific during operation as follows:

the first step is as follows: the locking screw 36 is loosened manually through a wrench, and then the angle between the two connecting pipes 2 is adjusted according to the use requirement;

the second step is that: when the two connecting pipes 2 rotate, the fixing block 331 drives the connecting plate 332 to slide in the locking seat 333, then the locking rod 335 is manually rotated, the locking rod 335 drives the locking plate 336 to move downwards through the threaded seat 334, and the locking plate 336 locks and fixes the connecting plate 332;

the third step: the connecting flange 1 is connected with the pipeline to be connected through screws.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an adjustable type elbow fitting, includes flange (1), connecting pipe (2) and adjusting device (3), its characterized in that: the number of the connecting flanges (1) is two, the connecting pipes (2) are installed on the outer sides of the connecting flanges (1), the connecting pipes (2) are of arc-shaped structures, and adjusting devices (3) are installed between every two adjacent connecting pipes (2); wherein:

the adjusting device (3) comprises a connecting ring (31), clamping rings (32), locking mechanisms (33), flexible pipes (34), connecting frames (35) and locking screws (36), wherein the connecting ring (31) is installed on the outer side of the inner end of the connecting pipe (2), the clamping rings (32) are installed on the inner side of the inner end of the connecting pipe (2), the flexible pipes (34) are arranged between the clamping rings (32), the flexible pipes (34) are respectively connected with the connecting ring (31) and the clamping rings (32) through the screws, the locking mechanisms (33) are installed between the upper ends of the connecting ring (31), the connecting frames (35) are installed at the lower ends of the connecting ring (31), and the connecting frames (35) are fixedly connected through the locking screws (36);

locking mechanism (33) including fixed block (331), connecting plate (332), locking seat (333), screw seat (334), check lock lever (335) and locking plate (336), be located left go-between (31) upper end of flexible pipe (34) and install fixed block (331), connecting plate (332) are installed to fixed block (331) right-hand member, be located go-between (31) upper end on flexible pipe (34) right side and install check lock seat (333), check lock seat (333) middle part is provided with the draw-in groove, connecting plate (332) are connected with the draw-in groove through sliding fit's mode, check lock seat (333) upper end middle part is provided with screw seat (334), screw seat (334) inside is connected with check lock lever (335) through screw fit's mode, locking plate (336) are installed to check lock lever (335) lower.

2. The adjustable elbow fitting according to claim 1, wherein the cross-section of said snap ring (32) is L-shaped, and a sealing rubber pad is disposed on the inner sidewall of the snap ring (32).

3. The adjustable elbow fitting according to claim 1, wherein: the connecting plate (332) is of an arc-shaped structure, an arc-shaped groove (337) is formed in the middle of the connecting plate (332), and a friction plate (338) is mounted inside the arc-shaped groove (337).

4. The adjustable elbow fitting according to claim 1, wherein: the flexible pipe (34) is a flexible corrugated pipe, and the inner side surface and the outer side surface of the flexible pipe (34) are coated with anticorrosive coatings.

5. The adjustable elbow fitting according to claim 1, wherein: the cross section of the locking seat (333) is of a U-shaped structure, and balls are uniformly arranged in the locking seat (333).