Elbow with adjustable inlet and outlet angles

Abstract

The utility model discloses an elbow with an adjustable inlet and outlet angle, which comprises a stainless steel main pipe, and the top and the bottom of the stainless steel main pipe are respectively connected with an elbow inlet piece and an elbow outlet piece. According to the elbow structure, the worm gear and the like are mounted, so that when the elbow structure is used, a user can sequentially grasp the two operating handles to rotate according to actual mounting requirements, the worm is driven to rotate, and then the worm gear matched with the worm is driven to rotate; the elbow inlet piece or the elbow outlet piece fixed on the worm gear can be driven to turn up and down along the stainless steel main pipe under the flexible action of the flexible connecting hose, so that the inlet and outlet angle of the elbow structure can be adjusted, the applicability is enhanced, and after the inlet and outlet angle is adjusted, the operation handle is loosened. Based on the self-locking property of the worm gear and worm transmission mechanism, the elbow inlet piece or the elbow outlet piece cannot reversely act on the worm gear to drive the worm gear and the worm to move to cause loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline valve structures, in particular to an elbow with adjustable entry and exit angles. Background Art

[0002] The elbow is an important structure on the pipeline valve. It can connect different pipeline sections and change the flow direction of the pipeline. However, there are still some defects in its specific use.

[0003] The structure of the elbow is generally simple, and its elbow inlet and outlet are often fixed on the main structure of the elbow, which makes it difficult to flexibly adjust the entry and exit angles of the elbow structure and difficult to meet the installation requirements of different pipeline valve components. Based on this, we propose a new type of elbow with adjustable entry and exit angles, which improves the applicability of the elbow structure and facilitates its promotion. Utility Model Content

[0004] The purpose of the utility model is to provide an elbow with adjustable entry and exit angles to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elbow with adjustable entry and exit angles, comprising a stainless steel main pipe, the top and bottom of the stainless steel main pipe are respectively connected to an elbow inlet piece and an elbow outlet piece, a flexible connecting hose is arranged between the elbow inlet piece and the elbow outlet piece and the stainless steel main pipe, a driving arm is fixed to the elbow inlet piece and the elbow outlet piece, a limiting slider is evenly welded on one side of the driving arm, an annular limiting sliding cavity slidably connected to the limiting slider is arranged on the stainless steel main pipe, a driving shell is welded on the side of the stainless steel main pipe away from the annular limiting sliding cavity, a worm wheel fixed to the driving arm is movably connected to the interior of the driving shell through a bearing, a worm is movably connected to the interior of the driving shell below the worm wheel through a bearing, and an operating handle that passes through one end of the driving shell is arranged at one end of the worm.

[0006] Preferably, the elbow inlet piece and the elbow outlet piece are both installed with an assembly disk at one end away from the stainless steel main pipe, and the edge of the assembly disk is evenly provided with fixing screw holes arranged at equal angles, so that it is easy to assemble the elbow inlet piece and the elbow outlet piece with the pipeline valve of corresponding specifications through screws.

[0007] Preferably, sealing rings are evenly inlaid on the assembly disk, so that the sealing performance of the elbow inlet and outlet parts when assembled with pipeline valves of corresponding specifications is improved.

[0008] Preferably, a filter protection net is installed inside the assembly disk, and a threaded installation groove threadedly connected to the filter protection net is provided inside the assembly disk, so that it can not only realize filtering and anti-blocking protection for the elbow inlet and outlet parts, but also flexibly remove and replace the threaded filter protection net.

[0009] Preferably, a rubber-plastic base layer is provided inside the side wall of the flexible connecting hose.

[0010] Preferably, the outer side wall of the flexible connecting hose is provided with an aluminum foil reinforced outer layer.

[0011] Preferably, the inner side wall of the flexible connecting hose is provided with a Teflon non-stick coating.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The elbow with adjustable entry and exit angle is equipped with a worm gear, etc., so that the elbow structure optimizes its own structure. The user can grasp the two operating handles in turn and rotate them according to the actual installation requirements, thereby driving the worm to rotate, and then driving the worm gear matching the worm to rotate. This can drive the elbow inlet or elbow outlet fixed on the worm gear to flip up and down along the stainless steel main pipe through the flexible action of the flexible connecting hose, so that the entry and exit angle of the elbow structure can be adjusted, thereby enhancing the applicability. Subsequently, after adjusting the entry and exit angle, the operating handle can be released. Based on the self-locking property of the worm gear transmission mechanism, the elbow inlet or elbow outlet will not act in reverse on the worm gear, driving the worm gear and worm gear to move and cause loosening. Compared with conventional screw fixing, etc., the convenience of operation is improved;

[0014] (2) The elbow with adjustable inlet and outlet angles is provided with a limit slider and the like, so that when the elbow structure is specifically operated, on the one hand, the limit slider is evenly welded on one side of the driving arm respectively fixed on the elbow inlet and the elbow outlet, and an annular limit sliding cavity slidably connected to the limit slider is provided on the stainless steel main pipe. The sliding guide structure formed by the limit slider and the annular limit sliding cavity can improve the stability of the elbow inlet and the elbow outlet when the angle is turned over and adjusted. On the other hand, an assembly disk is installed on the end of the elbow inlet and the elbow outlet away from the stainless steel main pipe, and fixing screw holes arranged at equal angles are evenly provided on the edge of the assembly disk, so that the elbow inlet and the elbow outlet can be assembled with the pipeline valve of the corresponding specification by screws;

[0015] (3) The elbow with adjustable entry and exit angles is equipped with a filter protection net, etc., so that when the elbow structure is actually used, on the one hand, the flexibility of the flexible connecting hose and the anti-sticking and corrosion resistance of the inner wall are improved by setting the flexible connecting hose as a composite flexible tube structure composed of an aluminum foil reinforced outer layer, a rubber-plastic base layer and a Teflon non-stick coating. On the other hand, by installing a filter protection net inside the assembly disk and providing a threaded installation groove threadedly connected to the filter protection net inside the assembly disk, the filter and blockage protection of the elbow inlet and outlet can be achieved, thereby extending the service life of the elbow structure, and the threaded filter protection net can be flexibly replaced to facilitate cleaning and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a rear view structural diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the drive housing of the utility model;

[0019] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the assembly disk of the utility model from a side view;

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the side wall of the flexible connecting hose of the utility model.

[0021] In the figure: 1. Stainless steel main pipe; 2. Driving arm; 3. Elbow inlet piece; 4. Assembly plate; 5. Flexible connecting hose; 6. Driving housing; 7. Elbow outlet piece; 8. Limit slider; 9. Annular limit slide cavity; 10. Worm gear; 11. Worm; 12. Operating handle; 13. Fixing screw hole; 14. Sealing ring; 15. Threaded mounting groove; 16. Filter protection net; 17. Aluminum foil reinforced outer layer; 18. Rubber-plastic base layer; 19. Teflon non-stick coating. DETAILED DESCRIPTION

[0022] 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. 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.

[0023] See also Figure 1-5The utility model provides an embodiment: an elbow with adjustable entry and exit angles, comprising a stainless steel main pipe 1, the top and bottom of the stainless steel main pipe 1 are respectively connected with an elbow inlet piece 3 and an elbow outlet piece 7, a flexible connecting hose 5 is arranged between the elbow inlet piece 3 and the elbow outlet piece 7 and the stainless steel main pipe 1, a driving arm 2 is fixed on the elbow inlet piece 3 and the elbow outlet piece 7, a limiting slider 8 is uniformly welded on one side of the driving arm 2, and an annular limiting sliding cavity 9 is arranged on the stainless steel main pipe 1 to be slidably connected with the limiting slider 8;

[0024] A drive housing 6 is welded on one side of the stainless steel main pipe 1 away from the annular limit sliding cavity 9, and a worm gear 10 fixed to the drive arm 2 is movably connected to the inside of the drive housing 6 through a bearing, and a worm 11 is movably connected to the inside of the drive housing 6 below the worm gear 10 through a bearing, and an operating handle 12 penetrating one end of the drive housing 6 is provided at one end of the worm gear 11;

[0025] During use, the user can grasp the two operating handles 12 in turn and rotate them according to actual installation requirements, thereby driving the worm 11 to rotate, and then driving the worm wheel 10 matched with the worm 11 to rotate, which can drive the elbow inlet piece 3 or the elbow outlet piece 7 fixed on the worm wheel 10 to turn up and down along the stainless steel main pipe 1 through the flexible action of the flexible connecting hose 5, so that the entry and exit angles of the elbow structure can be adjusted, and the applicability is enhanced. Subsequently, after adjusting the entry and exit angles, the operating handle 12 can be released. Based on the self-locking property of the worm gear transmission mechanism, the elbow inlet piece 3 or the elbow outlet piece 7 will not act reversely on the worm wheel 10, drive the worm wheel 10 and the worm 11 to move and cause loosening, which improves the convenience of operation compared with conventional screw fixings.

[0026] The elbow inlet piece 3 and the elbow outlet piece 7 are both installed with an assembly plate 4 at one end away from the stainless steel main pipe 1. The edge of the assembly plate 4 is evenly provided with fixing screw holes 13 arranged at equal angles, so that it is easy to assemble the elbow inlet piece 3 and the elbow outlet piece 7 with the pipeline valve of corresponding specifications through screws;

[0027] The assembly plate 4 is evenly inlaid with sealing rings 14, which improves the sealing performance of the elbow inlet piece 3 and the elbow outlet piece 7 when assembled with the pipeline valve of corresponding specifications;

[0028] A filter protection net 16 is installed inside the assembly disk 4, and a threaded installation groove 15 is provided inside the assembly disk 4 and is threadedly connected to the filter protection net 16, so that it can not only realize filtering and blocking protection for the elbow inlet 3 and the elbow outlet 7, but also can flexibly remove and replace the threaded filter protection net 16;

[0029] A rubber-plastic base layer 18 is provided inside the side wall of the flexible connecting hose 5;

[0030] The outer side wall of the flexible connecting hose 5 is provided with an aluminum foil reinforced outer layer 17;

[0031] The inner wall of the flexible connecting hose 5 is provided with a Teflon non-stick coating 19;

[0032] When in use, the flexible connecting hose 5 is configured as a composite flexible tube structure consisting of an aluminum foil reinforced outer layer 17 , a rubber-plastic base layer 18 and a Teflon non-stick coating 19 , thereby improving the flexibility of the flexible connecting hose 5 and the anti-stick and corrosion resistance of the inner wall.

[0033] When the embodiment of the present application is in use: an assembly disk 4 is installed at the end of the elbow inlet piece 3 and the elbow outlet piece 7 away from the stainless steel main pipe 1, and fixing screw holes 13 arranged at equal angles are evenly arranged on the edge of the assembly disk 4, so that the elbow inlet piece 3 and the elbow outlet piece 7 can be assembled with the pipeline valve of the corresponding specification through screws. At the same time, the user can grasp the two operating handles 12 in turn according to the actual installation requirements to rotate the operation, thereby driving the worm 11 to rotate, and then driving the worm wheel 10 matching the worm 11 to rotate. This can drive the elbow inlet piece 3 or the elbow outlet piece 7 fixed on the worm wheel 10 to turn up and down along the stainless steel main pipe 1 through the flexible action of the flexible connecting hose 5, so that the entry and exit angle of the elbow structure can be adjusted, and the applicability is enhanced. Subsequently, after adjusting the entry and exit angle, the operating handle 12 can be released. Based on the self-locking property of the worm gear transmission mechanism, the elbow inlet piece 3 or the elbow outlet piece 7 will not act in reverse on the worm wheel 10, drive the worm wheel 10 and the worm 11 to move and cause loosening, which is compared with the conventional The screw fixation improves the convenience of operation. Furthermore, a limiting slider 8 is evenly welded on one side of the driving arm 2 respectively fixed on the elbow inlet piece 3 and the elbow outlet piece 7, and an annular limiting sliding cavity 9 slidably connected to the limiting slider 8 is provided on the stainless steel main pipe 1. The sliding guide structure composed of the limiting slider 8 and the annular limiting sliding cavity 9 can improve the stability of the elbow inlet piece 3 and the elbow outlet piece 7 when flipping and adjusting the use angle. In addition, by setting the flexible connecting hose 5 as a composite flexible pipe structure composed of an aluminum foil reinforced outer layer 17, a rubber-plastic base layer 18 and a Teflon non-stick coating 19, the flexibility of the flexible connecting hose 5 and the anti-sticking and corrosion-resistant effect of the inner wall are improved. Moreover, by installing a filter protection net 16 inside the assembly disk 4, and providing a threaded mounting groove 15 threadedly connected to the filter protection net 16 inside the assembly disk 4, the filtering and blocking protection of the elbow inlet piece 3 and the elbow outlet piece 7 can be realized, and the service life of the elbow structure can be extended. The threaded filter protection net 16 can also be flexibly replaced to facilitate cleaning and maintenance.

Claims

1. An elbow with adjustable entry and exit angles, characterized in that: The invention comprises a stainless steel main pipe (1), the top and bottom of the stainless steel main pipe (1) are respectively connected to an elbow inlet piece (3) and an elbow outlet piece (7), a flexible connecting hose (5) is arranged between the elbow inlet piece (3) and the elbow outlet piece (7) and the stainless steel main pipe (1), a driving arm (2) is fixed to the elbow inlet piece (3) and the elbow outlet piece (7), a limiting slider (8) is uniformly welded to one side of the driving arm (2), an annular limiting sliding cavity (9) which is slidably connected to the limiting slider (8) is arranged on the stainless steel main pipe (1), a driving housing (6) is welded to a side of the stainless steel main pipe (1) which is away from the annular limiting sliding cavity (9), a worm gear (10) which is fixed to the driving arm (2) is movably connected to the inside of the driving housing (6) via a bearing, a worm (11) which is movably connected to the inside of the driving housing (6) below the worm gear (10) via a bearing, and an operating handle (12) which passes through one end of the driving housing (6) is arranged at one end of the worm gear (11).

2. The elbow with adjustable entry and exit angle according to claim 1, characterized in that: The elbow inlet piece (3) and the elbow outlet piece (7) are both installed with an assembly disk (4) at one end away from the stainless steel main pipe (1), and the edge of the assembly disk (4) is evenly provided with fixing screw holes (13) arranged at equal angles.

3. The elbow with adjustable entry and exit angle according to claim 2, characterized in that: Sealing rings (14) are evenly inlaid on the assembly disk (4).

4. The elbow with adjustable entry and exit angle according to claim 2, characterized in that: A filter protection net (16) is installed inside the assembly disk (4), and a threaded installation groove (15) threadedly connected to the filter protection net (16) is provided inside the assembly disk (4).

5. The elbow with adjustable entry and exit angle according to claim 1, characterized in that: A rubber-plastic base layer (18) is provided inside the side wall of the flexible connecting hose (5).

6. The elbow with adjustable entry and exit angle according to claim 1, characterized in that: The outer side wall of the flexible connecting hose (5) is provided with an aluminum foil reinforced outer layer (17).

7. The elbow with adjustable entry and exit angle according to claim 1, characterized in that: The inner side wall of the flexible connecting hose (5) is provided with a Teflon non-stick coating (19).

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