Metal bent pipe with convex hulls

Abstract

The utility model relates to the technical field of pipe fittings, and provides a metal bent pipe with a convex hull, which comprises a bent pipe body and a hose sleeved at one end of the bent pipe body, the middle part of the bent pipe body is a bent part, and a connecting mechanism is arranged on the surface of the bent part. The movable sleeve is moved to slide on the surface of the hose and drives the fixing ring to extrude the elastic piece, then the hose is arranged at one end of the bent pipe body in a sleeving mode, the sleeving progress of the hose is limited through the positioning piece, the movable sleeve is loosened, the elastic force of the elastic piece is used for driving the movable sleeve to reset, the fixing ring is synchronously driven to move and reset, and meanwhile the fixing ring extrudes the movable rod to move. And thus, the effect of clamping, reinforcing and connecting the elbow body and the hose is achieved, the connecting effect and stability between the elbow body and the hose are effectively improved, and the using stability and connecting convenience are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe fittings, and specifically to a metal elbow with a convex hull. Background Art

[0002] The pipe bending is carried out by using a complete set of bending equipment, which is divided into two processes: cold bending and hot pushing. Regardless of which kind of machinery and equipment and pipelines, most of them use pipe bending, which is mainly used for oil, gas, liquid infusion, engineering bridge construction, etc.

[0003] The authorized patent with the known application number: CN202020411549.0 discloses a metal elbow with a bulge, which includes a first joint pipe part, a second joint pipe part and a bent pipe part, wherein the first joint part is a straight pipe, and the end of the first joint pipe part forms a first end, wherein the bent pipe part extends integrally from the first joint part, wherein the bent pipe part is a bent pipe, wherein the second joint part extends integrally from the bent pipe part, wherein the second joint pipe part is a straight pipe, and the end of the second joint pipe part forms a second end, and the outer wall of the first joint pipe part is provided with at least one umbrella-shaped bulge, and the cross-sectional diameter of the umbrella-shaped bulge arranged near the outer wall of the first joint pipe part gradually increases from the first end to the second end, so as to form a guiding slope on the umbrella-shaped bulge, which is used to guide the hose to slide over the umbrella-shaped bulge and interference-connect with the first joint pipe part.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: when in use, it is not convenient to reinforce the connection between the elbow and the hose. When the hose is connected to the end of the elbow, since there is no clamping anti-detachment structure, when the fluid flows in the pipeline, the elbow and the hose will be subjected to a certain pressure and impact, which may easily cause the hose to slide or even detach at the elbow mouth, thereby reducing the connection effect and stability of the elbow and the hose. Utility Model Content

[0005] The utility model provides a metal elbow with a convex bulge, which solves the problem in the related art that it is inconvenient to reinforce the connection between the elbow and the hose.

[0006] The technical solution of the utility model is as follows: a metal elbow with a convex bulge, comprising: an elbow body and a hose sleeved on one end thereof, the middle part of the elbow body is a bending part, and a connection mechanism is provided on the surface of the bending part;

[0007] A convex structure is provided on one end surface of the curved pipe body, a clamping groove is provided on one end surface of the curved pipe body, a movable sleeve is sleeved on the surface of the hose, a groove is provided on the surface of the hose, a plurality of moving rods are slidably connected through the inner bottom wall of the groove, and an arc-shaped clamping block that cooperates with the clamping groove is fixedly connected to the bottom end of the moving rod;

[0008] A positioning piece is arranged on the surface of the curved pipe body, an elastic piece is arranged in the groove, and a fixing ring which contacts with the moving rod is fixedly installed on the inner surface of the movable sleeve.

[0009] Preferably, the elastic member is composed of a spring sleeved on the surface of the hose, and two ends of the spring are respectively connected to the fixing ring and one side of the inner wall of the groove.

[0010] Preferably, guiding slopes are formed on both sides of the inner wall of the clamping groove, the inner surface of the arc-shaped clamping block is formed with an arc surface matching the guiding slopes, the top end of the moving rod is a chamfered structure, and the inner surface of the fixing ring is a wedge surface matching the chamfer.

[0011] Preferably, the positioning member is composed of a positioning ring fixedly mounted on the surface of one end of the elbow body, and one end of the positioning ring is in contact with one end surface of the hose.

[0012] Preferably, the convex bulge structure is composed of two umbrella-shaped convex bulge blocks symmetrically and integrally formed on the surface of one end of the curved pipe body, and the cross-sectional diameters of the two umbrella-shaped convex bulge blocks gradually decrease in opposite directions.

[0013] A sealing groove is formed between the two umbrella-shaped convex bumps, a sealing ring is sleeved on the surface of the curved pipe body and located in the sealing groove, and a conical pipe head is integrally formed at one end of the curved pipe body.

[0014] Preferably, the connecting mechanism includes a connecting ring fixedly mounted on the surface of the bent pipe body and located at the bent part, a fixing rod fixedly mounted on the top of the connecting ring surface, a connecting block fixedly connected to the top of the fixing rod, screw holes opened on both sides of the top of the connecting block and connecting bolts threadedly connected in the screw holes.

[0015] The working principle and beneficial effects of the utility model are:

[0016] When in use, the movable sleeve slides on the surface of the hose and drives the fixed ring to extrude the elastic member, and then the hose is sleeved on one end of the bent pipe body. During the sleeve connection process, the movable rod is squeezed and moved, and the sleeve connection progress of the hose is limited under the action of the positioning member. At this time, the arc-shaped clamping block is aligned with the clamping groove, and the movable sleeve is loosened, and the elastic force of the elastic member is used to drive the movable sleeve to reset, and simultaneously drive the fixed ring to move and reset. At the same time, the movable rod is squeezed by the fixed ring to move, thereby driving the arc-shaped clamping block to move and clamp into the clamping groove to complete the fixation. When removing the hose, the movable sleeve can be pulled by the movable sleeve. Therefore, the effect of clamping and reinforcing the connection between the bent pipe body and the hose is achieved, and the situation that the bent pipe body and the hose are pressed due to fluid circulation and loosened and detached is avoided, which effectively improves the connection effect and stability between the bent pipe body and the hose, and ensures the stability of use and the convenience of connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the elbow body of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the hose of the utility model;

[0021] Figure 4 It is a partial three-dimensional structural schematic diagram of the umbrella-shaped protruding block of the utility model;

[0022] In the figure: 1. elbow body; 2. hose; 3. clamping groove; 4. movable sleeve; 5. moving rod; 6. arc-shaped clamping block; 7. fixing ring; 8. spring; 9. positioning ring; 10. umbrella-shaped convex block; 11. sealing groove; 12. sealing ring; 13. tapered pipe head; 14. connecting ring; 15. fixing rod; 16. connecting block; 17. connecting bolt. DETAILED DESCRIPTION

[0023] The following will be combined with 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 of 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.

[0024] Embodiment 1

[0025] See also Figure 1 - Figure 4 The utility model provides a metal elbow with a convex bulge, comprising: an elbow body 1 and a hose 2 sleeved on one end thereof, wherein the middle portion of the elbow body 1 is a bending portion;

[0026] A convex structure is provided on one end surface of the elbow body 1, a clamping groove 3 is provided on the surface of one end of the elbow body 1, a movable sleeve 4 is sleeved on the surface of the hose 2, a groove is provided on the surface of the hose 2, a plurality of moving rods 5 are slidably connected through the inner bottom wall of the groove, and an arc-shaped clamping block 6 that cooperates with the clamping groove 3 is fixedly connected to the bottom end of the moving rod 5, wherein the surface of the movable sleeve 4 is provided with an anti-slip protrusion;

[0027] A positioning piece is provided on the surface of the elbow body 1 , an elastic piece is provided in the groove, and a fixing ring 7 which contacts the moving rod 5 is fixedly installed on the inner surface of the movable sleeve 4 .

[0028] When in use, the movable sleeve 4 slides on the surface of the hose 2, and drives the fixed ring 7 to squeeze the elastic member, and then the movable hose 2 is sleeved on one end of the elbow body 1. At the same time, the connection sealing of the hose 2 and the elbow body 1 is enhanced under the action of the convex hull structure. During the sleeve connection of the hose 2, the movable rod 5 is squeezed and moved, and the sleeve connection progress of the hose 2 is limited under the action of the positioning member. At this time, the arc-shaped clamping block 6 is aligned with the clamping groove 3, and the movable sleeve 4 is released. The elastic force of the elastic member drives the movable sleeve 4 to reset, and the fixed ring 7 is driven to move and reset synchronously. At the same time, the movable rod 5 is squeezed by the fixed ring 7 to move, thereby driving the arc-shaped clamping block 6 to move and clamp into the clamping groove 3 to complete the fixation. When disassembling the hose 2, the movable sleeve 4 is moved, and the hose 2 and the elbow body 1 are pulled apart. Therefore, the effect of clamping and reinforcing the connection between the elbow body 1 and the hose 2 is achieved, and the situation that the elbow body 1 and the hose 2 are pressed and loosened due to fluid circulation is avoided. The connection effect and stability between the elbow body 1 and the hose 2 are effectively improved, and the stability of use and the convenience of connection are guaranteed.

[0029] Furthermore, the elastic member is composed of a spring 8 sleeved on the surface of the hose 2, and two ends of the spring 8 are respectively connected to the fixing ring 7 and one side of the inner wall of the groove.

[0030] Specifically, by providing the spring 8, when the movable sleeve 4 is loosened, the elastic force of the spring 8 can be used to drive the fixing ring 7 to reset, so as to squeeze the moving rod 5 to move, thereby driving the arc-shaped clamping block 6 and the clamping groove 3 to engage.

[0031] Furthermore, guiding slopes are formed on both sides of the inner wall of the clamping groove 3, the inner surface of the arc-shaped clamping block 6 is formed with an arc surface matching the guiding slopes, the top of the moving rod 5 is a chamfered structure, and the inner surface of the fixing ring 7 is a wedge surface matching the chamfer.

[0032] Specifically, by cooperating with the guiding inclined surface and the arc surface, it is convenient to disengage the arc-shaped clamping block 6 from the clamping groove 3 when disassembling the hose 2. By providing the chamfered structure and the wedge surface, it is convenient to squeeze the moving rod 5 when the fixing ring 7 moves, so as to drive the moving rod 5 to move.

[0033] Furthermore, the positioning member is composed of a positioning ring 9 fixedly mounted on the surface of one end of the elbow body 1 , and one end of the positioning ring 9 is in contact with one end surface of the hose 2 .

[0034] Specifically, by providing the positioning ring 9, the hose 2 can be limited when the hose 2 and the elbow body 1 are connected, so that the arc-shaped clamping block 6 and the clamping groove 3 are aligned and clamped, and it is convenient to check whether the hose 2 and the elbow body 1 are connected.

[0035] Furthermore, the convex bulge structure is composed of two umbrella-shaped convex bulge blocks 10 symmetrically formed on the surface of one end of the curved pipe body 1, and the cross-sectional diameters of the two umbrella-shaped convex bulge blocks 10 gradually decrease in opposite directions.

[0036] A sealing groove 11 is formed between the two umbrella-shaped convex bumps 10 , a sealing ring 12 is sleeved on the surface of the elbow body 1 and located in the sealing groove 11 , and a conical pipe head 13 is integrally formed at one end of the elbow body 1 .

[0037] Specifically, by providing an umbrella-shaped convex block 10, the connection between the bent pipe body 1 and the hose 2 is more secure, and the hose 2 can slide over the umbrella-shaped convex block 10 to connect with the bent pipe body 1, so as to reduce the risk of the two being separated during use and enhance the sealing between the two. At the same time, by providing a sealing ring 12 between the two umbrella-shaped convex blocks 10, the sealing effect between the bent pipe body 1 and the hose 2 can be further improved. By providing a conical pipe head 13, its conical surface can be used to guide it when the hose 2 is sleeved.

[0038] Embodiment 2

[0039] Based on the first embodiment, the present embodiment includes: a connecting mechanism, which is arranged on the surface of the bent pipe body 1, and includes a connecting ring 14 fixedly installed on the surface of the bent pipe body 1 and located at the bent part, a fixing rod 15 fixedly installed on the top of the surface of the connecting ring 14, a connecting block 16 fixedly connected to the top of the fixing rod 15, screw holes opened on both sides of the top of the connecting block 16 and connecting bolts 17 threadedly connected in the screw holes.

[0040] The technical solution provided in this embodiment is: when installing the elbow body 1, the connection block 16 is fitted with the installation position and the screw holes are aligned, and then the connection bolt 17 is rotated and screwed into the installation hole on the installation position to achieve the effect of installing and fixing the elbow body 1, so as to facilitate the subsequent assembly of the elbow body 1 and improve the convenience of installation for personnel.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal elbow with a convex hull, characterized in that: include: A curved pipe body (1) and a hose (2) sleeved on one end thereof, wherein the middle portion of the curved pipe body (1) is a curved portion, and a connection mechanism is provided on the surface of the curved portion; The surface of one end of the curved pipe body (1) is provided with a convex structure, the surface of one end of the curved pipe body (1) is provided with a clamping groove (3), the surface of the hose (2) is provided with a movable sleeve (4), the surface of the hose (2) is provided with a groove, the inner bottom wall of the groove is penetrated by a plurality of moving rods (5) which are slidably connected, and the bottom end of the moving rod (5) is fixedly connected with an arc-shaped clamping block (6) which is matched and clamped with the clamping groove (3); A positioning piece is provided on the surface of the curved pipe body (1), an elastic piece is provided in the groove, and a fixing ring (7) which contacts the moving rod (5) is fixedly installed on the inner surface of the movable sleeve (4).

2. The metal elbow with a convex hull according to claim 1, characterized in that: The elastic member is composed of a spring (8) sleeved on the surface of the hose (2), and the two ends of the spring (8) are respectively connected to the fixing ring (7) and one side of the inner wall of the groove.

3. The metal elbow with a convex hull according to claim 1, characterized in that: The inner walls of the clamping groove (3) are formed with guiding inclined surfaces on both sides, the inner surface of the arc-shaped clamping block (6) is formed with an arc surface matching the guiding inclined surfaces, the top end of the moving rod (5) is a chamfered structure, and the inner surface of the fixing ring (7) is a wedging surface matching the chamfer.

4. The metal elbow with a convex hull according to claim 1, characterized in that: The positioning member is composed of a positioning ring (9) fixedly mounted on the surface of one end of the elbow body (1), and one end of the positioning ring (9) is in contact with one end surface of the hose (2).

5. The metal elbow with a convex hull according to claim 1, characterized in that: The convex bulge structure is composed of two umbrella-shaped convex bulge blocks (10) symmetrically integrally formed on the surface of one end of the curved pipe body (1), and the cross-sectional diameters of the two umbrella-shaped convex bulge blocks (10) gradually decrease in opposite directions.

6. The metal elbow with a convex hull according to claim 5, characterized in that: A sealing groove (11) is formed between the two umbrella-shaped convex bumps (10), a sealing ring (12) is sleeved on the surface of the curved pipe body (1) and located in the sealing groove (11), and a conical pipe head (13) is integrally formed at one end of the curved pipe body (1).

7. The metal elbow with a convex hull according to claim 1, characterized in that: The connection mechanism comprises a connection ring (14) fixedly mounted on the surface of the curved pipe body (1) and located at the curved portion, a fixing rod (15) fixedly mounted on the top of the surface of the connection ring (14), a connection block (16) fixedly connected to the top of the fixing rod (15), screw holes provided on both sides of the top of the connection block (16) and connection bolts (17) threadedly connected in the screw holes.

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