CN212745444U

CN212745444U - Joint arm with good sealing performance for pipeline connection

Info

Publication number: CN212745444U
Application number: CN202021556631.9U
Authority: CN
Inventors: 尹卿
Original assignee: Shanghai Zhicheng Boiler Equipment Co ltd
Current assignee: Shanghai Zhicheng Boiler Equipment Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-03-19
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses a good pipe connection of leakproofness is with festival arm relates to the sealed technical field of pipe connection, and it is including festival arm pipeline, the equal coaxial festival arm ring flange that is equipped with in both ends of festival arm pipeline, arbitrary all support tightly between the lateral wall that festival arm ring flange and festival arm pipeline are close to each other and have seal ring, two be equipped with the straining device who is used for taut two festival arm ring flanges between the festival arm ring flange, arbitrary one side that is close to festival arm pipeline on seal ring's the outer lane lateral wall has the packing ring inclined plane through the chamfer shaping, the inboard edge of the both ends face of festival arm pipeline is formed with the pipeline inclined plane through the chamfer, just the packing ring inclined plane supports tightly with the pipeline inclined plane. The utility model has the advantages of simple structure, help realizing that seal ring holds tightly the pipeline.

Description

Joint arm with good sealing performance for pipeline connection

Technical Field

The utility model belongs to the technical field of the sealed technique of pipe connection and specifically relates to a good articulated boom for pipe connection of leakproofness is related to.

Background

Nowadays, machines, equipment and pipelines need to be provided with sealing devices wherever fluids exist. In the sealing device, a sealing gasket is indispensable. The sealing washer is made of metal or non-metal plate material through cutting, punching or cutting and other technological steps, and is used for sealing connection between pipes and between machine parts.

Referring to the attached figure 4, the telescopic pipeline connecting joint arm comprises a joint arm pipeline, joint arm flange plates are coaxially arranged at two ends of the joint arm pipeline, a gasket is fixed between one side, close to the joint arm pipeline, of any one joint arm flange plate and the corresponding end face of the joint arm pipeline, and a bolt and a nut for tensioning the two joint arm flange plates are arranged between the two joint arm flange plates. In practice, the staff firstly penetrates the joint arm pipelines from the two ends of the joint arm pipeline respectively at the ends to be connected of the two pipelines, then the two flange plates are pulled to be close to each other by means of bolts and nuts, at the moment, the sealing washer is compressed, and the sealing washer part protrudes towards the inner side of the sealing washer and compresses the pipelines, so that the telescopic pipeline connecting joint arm is connected with the two pipelines.

However, when the staff pulled two ring flanges to be close to each other with the help of bolt and nut, seal ring was extruded by festival arm pipeline and festival arm ring flange, and seal ring received only axial force to seal ring can only warp along the axis direction, makes the staff need apply great just can make seal ring inside protruding in order to hold the pipeline tightly, and staff's working strength is higher, exists and treats the improvement.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims to provide a good pipe connection of leakproofness is with festival arm through set up the packing ring inclined plane on sealed packing ring, set up the pipeline inclined plane on festival arm pipeline and correspond, helps seal ring can produce great deformation and extrude to the direction that is close to the pipeline after staff's application of certain power to help making things convenient for seal ring to hold tightly the pipeline, reduce staff's working strength.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a good pipe connection of leakproofness is with festival arm, includes festival arm pipeline, the equal coaxial festival arm ring flange that is equipped with in both ends of festival arm pipeline, arbitrary festival arm ring flange and the mutual lateral wall that is close to of festival arm pipeline all support tightly between have seal ring, two be equipped with the straining device who is used for taut two festival arm ring flanges between the festival arm ring flange, arbitrary one side that is close to the festival arm pipeline on seal ring's the outer lane lateral wall has a packing ring inclined plane through the chamfer shaping, the inboard edge of the both ends face of festival arm pipeline is formed with the pipeline inclined plane through the chamfer, just the packing ring inclined plane supports tightly with the pipeline inclined plane.

Through adopting above-mentioned technical scheme, in the application, the staff penetrates the festival arm pipeline from the both ends of festival arm pipeline respectively with the link of treating of two pipelines earlier, and then borrows straining device to tighten two festival arm ring flanges each other, and seal ring is pressed from both sides tightly between festival arm ring flange and festival arm pipeline this moment. Because the inclined plane of the pipeline is tightly abutted to the inclined plane of the gasket, the joint arm flange pushes the sealing gasket towards the direction of the pipeline, so that the clamping of the sealing gasket to the pipeline is facilitated, and the working strength of workers is reduced.

The utility model discloses further set up to: it is arbitrary the downthehole first step groove that all coaxially is equipped with of flange of festival arm ring flange, the cell wall diameter in first step groove is unanimous with the tight pipeline external diameter of clamp, arbitrary seal ring all corresponds the first step inslot of coaxial embedding, and is arbitrary seal ring supports tightly on the ladder face in first step groove along one side that its axial deviates from the pipeline inclined plane.

Through adopting above-mentioned technical scheme, in the actual work, the staff will seal ring setting earlier in first step inslot, will save the arm ring flange cover again and establish on festival arm pipeline, when the staff with the help of straining device with two festival arm ring flanges taut, one side that seal ring outer lane lateral wall is close to festival arm pipeline receives the restriction of first step groove cell wall for seal ring is to the pipeline direction protrusion, helps promoting seal ring and holds the steadiness of pipeline tightly.

The utility model discloses further set up to: the tensioning device comprises a fixing bolt rod and a locking nut, the length direction of the fixing bolt rod is parallel to the axis direction of the clamping pipeline, two sections of arm flange plates are respectively penetrated through two ends of the fixing bolt rod in the length direction, and one locking nut is connected to each thread at two ends of the fixing bolt rod in the length direction.

Through adopting above-mentioned technical scheme, in the application, the staff can rotate lock nut for two festival arm ring flanges are close to each other, and compress tightly seal ring between festival arm ring flange and festival arm pipeline, further realize the taut operation between to two ring flanges, help the convenience to the connection operation between two pipelines.

The utility model discloses further set up to: the knuckle arm pipeline comprises two clamping pipelines which are coaxially arranged, a sealing gasket is fixed between the two clamping pipelines, and the sealing gasket corresponds to the joint of the two pipelines.

Through adopting above-mentioned technical scheme, in the actual work, the staff penetrates the link of treating of two pipelines respectively from the one end of two tight pipelines of clamp, again with the setting of sealing washer between two tight pipelines of clamp, then the staff is taut mutually with two festival arm ring flanges with the help of straining device, and the sealing washer receives the extrusion and warp this moment in order to realize the sealed to the pipeline, helps promoting the leakproofness to the pipe connection.

The utility model discloses further set up to: the second ladder groove has been seted up on the tight pipeline of arbitrary one clamp, add the coaxial embedding second ladder inslot of sealing washer, another the tight pipeline of clamp penetrates the ladder groove near the one end in second ladder groove.

Through adopting above-mentioned technical scheme, the staff sets up seal ring in the second step inslot, when sealing the packing ring and receiving the extrusion of two tight pipelines of clamp. The groove wall of the second stepped groove limits outward deformation of the sealing gasket, so that the sealing gasket protrudes inwards and tightly holds the gasket, and the sealing performance of the pipeline connection is further improved.

The utility model discloses further set up to: the sealing washer is close to the shaping spacing lug on the lateral wall of festival arm ring flange, be provided with spacing recess on the ladder face in first ladder groove, spacing lug corresponds the setting with spacing recess, spacing lug embedding is in the spacing recess.

Through adopting above-mentioned technical scheme, with spacing lug embedding spacing recess in, help promoting seal ring and support the steadiness tightly between the ladder face in ladder groove and pipeline inclined plane.

The utility model discloses further set up to: and anti-skid grains are arranged on the step surface of the first step groove.

Through adopting above-mentioned technical scheme, with the help of being equipped with anti-skidding line on the ladder in first step groove, increase the frictional force of the terminal surface of seal ring and the ladder face in first step groove, slide when helping preventing festival arm ring flange and festival arm pipeline extrusion seal ring to help promoting festival arm ring flange and festival arm pipeline and compressing tightly the stability of operation to seal ring.

The utility model discloses further set up to: and protective gaskets are arranged on the side walls of the two section arm flange plates which deviate from each other, and the fixed bolt rod penetrates through the protective gaskets.

Through adopting above-mentioned technical scheme, all be equipped with the protection gasket on the lateral wall that the festival arm ring flange deviates from each other, when the staff will be a section arm flange taut each other with the help of fixed bolt pole and lock nut, help preventing lock nut from causing wearing and tearing to the lateral wall of festival arm ring flange.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the joint arm flanges are coaxially arranged at the two ends of the joint arm pipeline, the sealing washer is tightly pressed between the joint arm flanges and the joint arm pipeline by the tensioning device, and the joint arm flanges push the sealing washer towards the pipeline direction due to the fact that the inclined surfaces of the washers are tightly pressed against the inclined surfaces of the pipeline, so that the sealing washer is beneficial to tightly holding the pipeline;

(2) the sealing washer is arranged in the first step groove, so that the convex deformation of the sealing washer towards the pipeline direction is increased, and the stability of the sealing washer holding the pipeline is improved;

(3) by providing a sealing gasket between the clamped tubes, it is helpful to improve the sealing of the tube connection.

Drawings

Fig. 1 is an exploded view of an overall structure of a joint arm for connecting a pipeline, which mainly shows good sealing performance in the embodiment;

FIG. 2 is an exploded view of a sealing washer according to a second embodiment of the present invention;

FIG. 3 is an exploded view of a third embodiment of a limiting bump;

fig. 4 is a schematic view showing a structure of a telescopic pipe coupling arm in the related art.

Reference numerals: 1. a jointed arm pipe; 11. a pipeline ramp; 12. clamping the pipeline; 121. a second stepped groove; 2. a knuckle arm flange plate; 21. a first step groove; 211. a limiting groove; 3. a sealing gasket; 31. a gasket bevel; 32. a limiting bump; 4. a tensioning device; 41. fixing a bolt bar; 42. locking the nut; 5. sealing a gasket; 6. anti-skid lines; 7. and (6) protecting the gasket.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

The first embodiment is as follows:

referring to the attached drawing 1, the knuckle arm for connecting the pipelines with good sealing performance comprises a knuckle arm pipeline 1, knuckle arm flange plates 2 are coaxially arranged at two ends of the knuckle arm pipeline 1, a sealing washer 3 is tightly abutted between the side wall, close to the knuckle arm pipeline 1, of any knuckle arm flange plate 2, a tensioning device 4 used for tensioning the two knuckle arm flange plates 2 is arranged between the two knuckle arm flange plates 2, a gasket inclined surface 31 is formed on one side, close to the knuckle arm pipeline 1, of the outer ring side wall of any sealing washer 3 through chamfering, a pipeline inclined surface 11 is formed on the inner side edge of the two end faces of the knuckle arm pipeline 1 through chamfering, and the gasket inclined surface 31 is tightly abutted to the pipeline inclined surface 11.

In the application, the staff firstly penetrates the to-be-connected ends of the two pipelines into the arm-saving pipeline 1 from the two ends of the arm-saving pipeline 1 respectively, and then the two arm-saving flange plates 2 are mutually tensioned by the tensioning device 4, and the sealing washer 3 is clamped between the arm-saving flange plate 2 and the arm-saving pipeline 1. Because the pipeline inclined plane 11 is tightly abutted against the gasket inclined plane 31, the knuckle arm flange 2 pushes the sealing gasket 3 towards the pipeline direction, so that the sealing gasket 3 can more stably hold the pipeline under the convex deformation towards the pipeline.

Referring to fig. 1, the tension device 4 includes a fixing bolt rod 41 and a lock nut 42, the length direction of the fixing bolt rod 41 is parallel to the axial direction of the arm joint pipe 1, two ends of the fixing bolt rod 41 in the length direction respectively penetrate through the two arm joint flanges 2, and four fixing bolt rods 41 are uniformly arranged around the circumference of the arm joint pipe 1 at intervals. The lock nuts 42 are respectively screwed to both ends of the fixing bolt rod 41 in the longitudinal direction.

In use, the operator may rotate the locking nut 42 to move the two arm flanges 2 toward each other and compress the sealing gasket 3 between the arm flanges 2 and the arm pipe 1.

Referring to the attached drawing 1, a first step groove 21 is formed in one side, close to the knuckle arm pipeline 1, of the knuckle arm flange 2, the first step groove 21 is coaxially arranged with a flange hole of the knuckle arm flange 2, and the diameter of the groove wall of the first step groove 21 is consistent with the outer diameter of the knuckle arm pipeline 1. The sealing washer 3 is tightly pressed between the step surface of the first step groove 21 and the end surface of the pipe inclined surface 11 of the knuckle arm pipe 1, and the sealing washer inclined surface 31 of the sealing washer 3 is tightly pressed with the pipe inclined surface 11.

The implementation principle of the above embodiment is as follows: in practice, the staff firstly penetrates the to-be-connected ends of the two pipelines into the arm joint pipeline 1 from the two ends of the arm joint pipeline 1, and then rotates the locking nut 42, so that the two arm joint flange plates 2 are close to each other, and the sealing washer 3 is clamped between the arm joint flange plate 2 and the arm joint pipeline 1. Because the pipeline inclined plane 11 is tightly abutted against the gasket inclined plane 31, the knuckle arm flange 2 pushes the sealing gasket 3 towards the pipeline direction, so that the sealing gasket 3 can more stably hold the pipeline under the convex deformation towards the pipeline.

Example two:

referring to fig. 2, the difference between the knuckle arm for connecting a pipeline with good sealing performance and the first embodiment is that the knuckle arm pipeline 1 comprises two coaxially arranged clamping pipelines 12, a sealing gasket 5 is tightly pressed between the two clamping pipelines 12, and the sealing gasket 5 corresponds to the joint of the two pipelines.

In practice, the staff firstly penetrates the to-be-connected ends of the two pipelines from one ends of the two clamping pipelines 12 respectively, then the sealing gasket 5 is arranged between the two clamping pipelines 12, then the staff mutually tensions the two knuckle arm flange plates 2 by means of the tensioning device 4, and at the moment, the sealing gasket 5 is extruded and deformed to seal the pipelines.

Referring to fig. 2, a second stepped groove 121 is formed in any one of the clamping pipes 12, and the sealing washer 5 is coaxially inserted into the second stepped groove 121. The other clamp pipe 12 is provided as a stepped pipe, and one side of the other clamp pipe 12 near the second stepped groove 121 penetrates the second stepped groove 121. One side of the sealing gasket 5 abuts against the stepped surface of the second stepped groove 121, and the other side of the sealing gasket 5 abuts against the end surface of the corresponding clamping pipe 12.

Referring to fig. 2, the step surface of the first step groove 21 and the inclined surface 11 of the pipeline are provided with anti-slip threads 6. All be equipped with protection gasket 7 on the lateral wall that festival arm ring flange 2 deviates from each other, and protection gasket 7 and the coaxial setting of fixed bolt pole 41, protection gasket 7 is worn to establish by fixed bolt pole 41, and lock nut 42 supports tightly on protection gasket 7 near one side of festival arm ring flange 2.

The principle of the above embodiment is as follows: in practice, the staff firstly penetrates the to-be-connected ends of the two pipes from one end of each of the two clamping pipes 12, and then the sealing gasket 5 is arranged in the second stepped groove 121, one side of each of the two end faces of the sealing gasket 5 abuts against the stepped surface of the second stepped groove 121, and the other side of the sealing gasket 5 abuts against the end face of the other clamping pipe 12. The worker then rotates the locking nut 42 so that the two knuckle arm flanges 2 approach each other and the side of the locking nut 42 adjacent the knuckle arm flanges 2 abuts the protective gasket 7. The sealing gasket 3 is now clamped between the knuckle arm flange 2 and the knuckle arm pipe 1. Because the pipeline inclined plane 11 is tightly abutted against the gasket inclined plane 31, the knuckle arm flange 2 pushes the sealing gasket 3 towards the pipeline direction, so that the sealing gasket 3 can more stably hold the pipeline under the convex deformation towards the pipeline. Meanwhile, the sealing gasket 5 protrudes toward the direction of the pipe, thereby sealing the joint of the pipe.

Example three:

referring to fig. 3, a knuckle arm for connecting a pipeline with good sealing performance is different from the first embodiment in that four limiting protrusions 32 are arranged on one side, close to a knuckle arm flange 2, of a sealing gasket 3, and the number of the limiting protrusions 32 is four along the circumferential direction of the sealing gasket 3. A limiting groove 211 is arranged on the step surface of the first step groove 21, the limiting groove 211 corresponds to the limiting convex block 32, and the limiting convex block 32 is embedded into the limiting groove 211.

The implementation principle of the above embodiment is as follows: in practice, when the worker sets the sealing gasket 3 between the step surface of the first step groove 21 and the end surface of the arm pipe 1, the worker needs to fit the stopper projection 32 into the stopper groove 211. In the connection operation of the pipelines, a worker firstly penetrates the to-be-connected ends of the two pipelines into the arm joint pipeline 1 from the two ends of the arm joint pipeline 1 respectively, and then rotates the locking nut 42 to enable the two arm joint flange plates 2 to be close to each other, and at the moment, the sealing washer 3 is clamped between the arm joint flange plates 2 and the arm joint pipeline 1. Because the pipeline inclined plane 11 is tightly abutted against the gasket inclined plane 31, the knuckle arm flange 2 pushes the sealing gasket 3 towards the pipeline direction, so that the sealing gasket 3 can more stably hold the pipeline under the convex deformation towards the pipeline.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a good for pipe connection festival arm of leakproofness, includes festival arm pipeline (1), the both ends of festival arm pipeline (1) are all coaxial to be equipped with festival arm ring flange (2), arbitrary all support tightly between the lateral wall that festival arm ring flange (2) and festival arm pipeline (1) are close to each other and have seal ring (3), two be equipped with straining device (4) that are used for taut two festival arm ring flanges (2) between festival arm ring flange (2), its characterized in that, arbitrary one side that is close to festival arm pipeline (1) on the outer lane lateral wall of seal ring (3) has packing ring inclined plane (31) through the chamfer shaping, the inboard edge of the both ends face of festival arm pipeline (1) is formed with pipeline inclined plane (11) through the chamfer, just packing ring inclined plane (31) support tightly with pipeline inclined plane (11).

2. The knuckle arm for connecting the pipeline with good sealing performance according to claim 1, wherein a first stepped groove (21) is coaxially formed in a flange hole of any one of the knuckle arm flanges (2), the diameter of the wall of the first stepped groove (21) is consistent with the outer diameter of the clamping pipeline (12), any one of the sealing gaskets (3) is correspondingly and coaxially embedded into the first stepped groove (21), and one side, which is axially away from the pipeline inclined surface (11), of any one of the sealing gaskets (3) abuts against the stepped surface of the first stepped groove (21).

3. The knuckle arm for connecting pipelines with good sealing performance according to claim 1, wherein the tensioning device (4) comprises a fixing bolt rod (41) and a locking nut (42), the length direction of the fixing bolt rod (41) is parallel to the axial direction of the clamping pipeline (12), two ends of the fixing bolt rod (41) in the length direction penetrate through the two knuckle arm flanges (2), and one end of the locking nut (42) in the length direction of the fixing bolt rod (41) is connected with the locking nut in a threaded mode.

4. The knuckle arm for connecting pipelines with good sealing performance according to claim 1, wherein the knuckle arm pipeline (1) comprises two coaxially arranged clamping pipelines (12), a sealing gasket (5) is fixed between the two clamping pipelines (12), and the sealing gasket (5) corresponds to the joint of the two pipelines.

5. The knuckle arm for connecting the pipeline with good sealing performance according to claim 4, wherein a second stepped groove (121) is formed in any one of the clamping pipelines (12), the sealing gasket (5) is coaxially embedded into the second stepped groove (121), the other clamping pipeline (12) is a stepped pipeline, one end, close to the second stepped groove (121), of the clamping pipeline (12) penetrates into the second stepped groove (121), and the sealing gasket (5) abuts between the stepped surface of the second stepped groove (121) and the end surface of the stepped pipeline.

6. The knuckle arm for connecting a pipeline with good sealing performance according to claim 2, wherein a limiting bump (32) is formed on one side wall of the sealing washer (3) close to the knuckle arm flange (2), a limiting groove (211) is formed on the stepped surface of the first stepped groove (21), the limiting bump (32) is arranged corresponding to the limiting groove (211), and the limiting bump (32) is embedded into the limiting groove (211).

7. The joint arm for connecting a pipeline with good sealing performance as claimed in claim 2, wherein the step surface of any first step groove (21) is provided with anti-slip grains (6).

8. The knuckle arm for connecting a pipeline with good sealing performance according to claim 3, wherein a protective gasket (7) is arranged on the side wall of each of two knuckle arm flanges (2) which are away from each other, and the fixing bolt rod (41) penetrates through the protective gasket (7).