Adjustable end straight joint
By introducing a sliding connection between telescopic tube and movable nut into the end-through joint, combined with the elastic extrusion mechanism of shrapnel and inverted teeth, the problem of unadjustable length of the existing joint is solved, and flexible adjustment and stable connection of the pipe length are achieved to ensure that Sealing and stability.
Patent Information
- Application Number
- CN202421215945.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The existing end-through joints cannot adjust the length, resulting in problems that may be too long or too short when cutting the pipes, and the pipes cannot be properly connected.
An adjustable end straight-through joint is designed to achieve sliding connection through the fitting of straight pipes, telescopic pipes and movable nuts, and provide elastic extrusion through the fitting of shrapnel and inverted teeth to ensure stable connection of the pipe.
It realizes flexible adjustment of pipeline length, avoids connection errors caused by fixed specifications, ensures stable connection and sealing of pipelines, and solves the problem that existing joints cannot adapt to the interface of pipelines of different lengths.
Smart Images
Figure CN222255486U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline connection, in particular to an adjustable end straight-through joint. Background Art
[0002] A straight-through connector is a pipe connection fitting, mainly used to connect straight pipes. It consists of two parts, the connector itself and the end. The connector is usually a metal tube with internal or external threads, which can be fixed to the pipe at the other end. The main function of a straight-through connector is that during the installation of the pipeline, if one pipe is not long enough or the pipe is broken in the middle, the pipe needs to be extended and replaced, and the pipes need to be connected through a straight-through connector. Straight-through connectors are commonly used in industry and life. Straight-through connectors are the transfer hub in the entire pipeline system, which solves the problems caused by the pipeline being not long enough and the need to extend and transfer.
[0003] Most of the existing straight-through end joints are of fixed length and cannot be adjusted. There may be errors when cutting the pipe, resulting in the cut pipe being too long or too short. If the pipe is too long, the straight-through end joint cannot be placed between the two connecting ends. If the pipe is too short, the straight-through end joint cannot connect the two connecting ends together. For this reason, we propose an adjustable straight-through end joint. Utility Model Content
[0004] The purpose of the utility model is to provide an adjustable end straight-through connector to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an adjustable end straight-through joint, comprising a straight tube, a telescopic tube and a first movable nut, the outer surface of the straight tube is connected with a fixing nut, the inner wall of the straight tube is slidably connected to the outer surface of the telescopic tube, a sealing groove is provided at one end of the straight tube located on the telescopic tube, the first movable nut is sleeved on the outside of the telescopic tube, the first movable nut is threadedly connected to one end of the straight tube, a pressing plate is movably connected to the inner bottom wall of the first movable nut, a sealing gasket is movably connected to one side of the pressing plate, and the other side of the sealing gasket contacts with the inner wall of the sealing groove, the inner wall of the telescopic tube is connected with an inner diameter tube, a rubber pad is sleeved on the outside of the inner diameter tube, a second movable nut is threadedly connected to the outer surface of the telescopic tube, and a fixing mechanism is arranged on the outside of the telescopic tube.
[0006] Preferably, one end of the telescopic tube is connected to a plurality of spring plates in a circular array, the plurality of spring plates are all located outside the inner diameter tube, and one side of the plurality of spring plates located on the inner diameter tube is connected to inverted teeth.
[0007] Preferably, a slot is provided on the inner side of the straight tube, a bayonet is connected to one side of the pressing sheet, and an outer surface of the bayonet is in contact with an inner wall of the slot.
[0008] Preferably, the other end of the straight tube is connected to a fixed tube, and the outer surface of the fixed tube is threadedly connected to a third movable nut.
[0009] Preferably, the fixing mechanism comprises a first positioning ring, the first positioning ring is connected to the outer surface of the telescopic tube, the outer surface of the first positioning ring is rotatably connected to a pull ring, and both ends of the pull ring are rotatably connected to pull rods at fixed points.
[0010] Preferably, the outer surface of the straight tube is connected to a second positioning ring, and the outer surface of the second positioning ring is rotatably connected to a clamping ring. Positioning grooves are provided at both ends of the clamping ring, and the inner wall of the positioning groove is in contact with the outer surface of the pull rod. One end of the pull rod located outside the clamping ring is threadedly connected to a fourth movable nut, and one side of the fourth positioning nut is in contact with one side of the clamping ring.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model supports the telescopic tube through the straight tube through the cooperation among the telescopic tube, the straight tube and the first movable nut, so that the telescopic tube has a sliding function, and the length of the adjustable end straight-through joint is changed through the sliding of the telescopic tube. After the telescopic tube slides to the position where the pipe joint is used, the sealing gasket is pushed by the first movable nut to seal the gap between the telescopic tube and the straight tube, so as to prevent the flowing medium from seeping out of the gap. The length of the adjustable end straight-through joint is changed through the sliding of the telescopic tube, which solves the problem that the existing adjustable end straight-through joint has fixed specifications and cannot be connected to pipe interfaces with errors.
[0013] The cooperation between the pressing sheet, the inverted teeth and the second movable nut of the utility model, through the elasticity of the spring sheet, after being squeezed by the second movable nut, the spring sheet will shrink inwardly, squeeze the connected pipe, so that the pipe cannot be separated from the contact with the telescopic tube, and the spring sheet drives the inverted teeth to move their positions at the same time when squeezing the pipe. The inverted teeth can penetrate into a part of the pipe through the pressure applied by the spring sheet, thereby further improving the stability of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the telescopic tube of the utility model;
[0016] Figure 3 This is a schematic diagram of the internal structure of the straight pipe of the utility model;
[0017] Figure 4This is a schematic diagram of the structure of the main components of the fixing mechanism of the utility model;
[0018] Figure 5 It is a schematic diagram of the overall cutaway structure of the utility model.
[0019] In the figure: 1. straight tube; 2. telescopic tube; 3. first movable nut; 4. fixed nut; 5. sealing groove; 6. pressing plate; 7. sealing gasket; 8. inner diameter tube; 9. second movable nut; 10. fixing mechanism; 1001. first positioning ring; 1002. pull ring; 1003. pull rod; 1004. second positioning ring; 1005. snap ring; 1006. positioning groove; 1007. fourth movable nut; 11. spring piece; 12. inverted tooth; 13. fixed tube; 14. third movable nut; 15. slot; 16. bayonet pin; 17. rubber pad. DETAILED DESCRIPTION
[0020] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.
[0021] See also Figure 1-5 The utility model provides a technical solution: an adjustable end straight-through joint, comprising a straight pipe 1, a telescopic pipe 2 and a first movable nut 3, the outer surface of the straight pipe 1 is connected with a fixing nut 4, the stability of the straight pipe 1 is maintained by the fixing nut 4, the inner wall of the straight pipe 1 is slidably connected to the outer surface of the telescopic pipe 2, and the length of the adjustable end straight-through joint can be changed by sliding the telescopic pipe 2.
[0022] The straight tube 1 is provided with a sealing groove 5 at one end of the telescopic tube 2, the first movable nut 3 is sleeved on the outside of the telescopic tube 2, the first movable nut 3 is threadedly connected to one end of the straight tube 1, and the stability of the telescopic tube 2 can be improved by rotating the first movable nut 3 to connect with the straight tube 1, the inner bottom wall of the first movable nut 3 is movably connected with a pressing plate 6, one side of the pressing plate 6 is movably connected with a sealing gasket 7, and the other side of the sealing gasket 7 contacts the inner wall of the sealing groove 5, and the pressing plate 6 is pushed to move when the first movable nut 3 moves, and the sealing gasket 7 is squeezed when the pressing plate 6 moves, and the gap between the telescopic tube 2 and the straight tube 1 is sealed by squeezing the sealing gasket 7, the inner wall of the telescopic tube 2 is connected with an inner diameter tube 8, and the outer side of the inner diameter tube 8 is sleeved with a rubber gasket 17, and the rubber gasket 17 can form a seal between the inner diameter tube 8 and the pipeline interface, and the inner diameter tube 8 is supported inside the pipeline to prevent the pipeline from being deformed after being squeezed by the second movable nut 9.
[0023] The outer surface of the telescopic tube 2 is threadedly connected with a second movable nut 9, and the second movable nut 9 is used to squeeze the spring piece 11 to fix the pipeline. The second movable nut 9 has an inclination inside, and the inclination angle can match the chamfer on the spring piece 11. The spring piece 11 is squeezed while the second movable nut 9 moves its position. One end of the telescopic tube 2 is connected with multiple spring pieces 11, and the multiple spring pieces 11 are arranged in a circular array. The outside of the spring piece 11 has a chamfer. The multiple spring pieces 11 are all located outside the inner diameter tube 8. The spring piece 11 has a certain elasticity. After being squeezed by the second movable nut 9, it shrinks inwardly to squeeze the connected pipeline. The multiple spring pieces 11 are located on one side of the inner diameter tube 8. The inverted teeth 12 are connected. When the spring pieces 11 shrink inwardly, the inverted teeth 12 are driven to move at the same time. The pressure applied by the spring pieces 11 to the inverted teeth 12 allows the inverted teeth 12 to penetrate into a part of the pipeline. The inverted teeth 12 contact the pipeline, which can improve the stability of the pipeline.
[0024] A slot 15 is provided on the inner side of the straight tube 1, and a bayonet 16 is connected to one side of the pressing plate 6. The outer surface of the bayonet 16 contacts the inner wall of the slot 15, and the moving position of the bayonet 16 can be limited by the slot 15. The bayonet 16 is restricted in movement and the rotation of the pressing plate 6 is restricted at the same time. When the first movable nut 3 is threadedly connected to the straight tube 1, it needs to be rotated. In order to prevent the first movable nut 3 from causing friction damage to the sealing gasket 7 after rotation, the sealing gasket 7 is separated from the first movable nut 3 by the pressing plate 6 to protect the sealing gasket 7, so that the first movable nut 3 can only generate a driving force for the pressing plate 6 when it rotates.
[0025] The other end of the straight pipe 1 is connected to a fixed pipe 13 , and the outer surface of the fixed pipe 13 is threadedly connected to a third movable nut 14 . The other end of the pipeline is connected through the fixed pipe 13 , and the connection structure of the fixed pipe 13 is the same as that of the telescopic pipe 2 .
[0026] The outside of the telescopic tube 2 is provided with a fixing mechanism 10, and the fixing mechanism 10 increases the stability of the telescopic tube 2 when connected to the straight tube 1. The fixing mechanism 10 includes a first positioning ring 1001, and the first positioning ring 1001 is connected to the outer surface of the telescopic tube 2. The outer surface of the first positioning ring 1001 is rotatably connected with a pull ring 1002. The telescopic tube 2 receives the pulling force through the first positioning ring 1001. The first positioning ring 1001 enables the pull ring 1002 to have a rotation function. The pull ring 1002 can adjust the angle by rotating. Both ends of the pull ring 1002 are rotatably connected with a pull rod 1003 at a fixed point. The outer surface of the straight tube 1 is connected with a second positioning ring 1004, and the outer surface of the second positioning ring 1004 is rotatably connected with a clamping ring 1005. Both ends of the clamping ring 1005 are open A positioning groove 1006 is provided, and the retaining ring 1005 has a space for accommodating the pull rod 1003 through the positioning groove 1006, thereby increasing the stability of the pull rod 1003. The inner wall of the positioning groove 1006 contacts the outer surface of the pull rod 1003, and one end of the pull rod 1003 located outside the retaining ring 1005 is threadedly connected with a fourth movable nut 1007, and one side of the fourth movable nut 1007 contacts one side of the retaining ring 1005. The pull ring 1002 can form a barrier for the fourth movable nut 1007, and the pull rod 1003 is fixed by the fourth movable nut 1007, so that the pull rod 1003 forms a pulling force on the pull ring 1002, thereby preventing the pressure of the medium flowing inside the adjustable end straight-through joint from being too high, causing the telescopic tube 2 to separate from the straight tube 1, thereby improving the stability of the telescopic tube 2 when connected to the straight tube 1.
[0027] When in use, first insert the pipe into the telescopic tube 2 until one end of the pipe contacts the rubber pad 17, then rotate the second movable nut 9 to squeeze the spring piece 11, and then the spring piece 11 drives the inverted tooth 12 to contact the pipe. After tightening the second movable nut 9, pull the straight pipe 1 to drive the fixed pipe 13 to dock with the pipe at the other end. At the same time, the telescopic tube 2 slides in the straight pipe 1. After the telescopic tube 2 and the fixed pipe 13 are connected to the pipe, push the sealing gasket 7 into the sealing groove 5, and then push the pressing sheet 6 toward the sealing gasket 7. At the same time, the bayonet pin 16 slides into the slot 15, and is connected to the straight tube 1 by rotating the first movable nut 3. When the first movable nut 3 moves, the pressing plate 6 is pushed to move. The pressing plate 6 squeezes the sealing gasket 7 to close the gap between the telescopic tube 2 and the straight tube 1. Subsequently, the pull rod 1003 is placed into the positioning slot 1006, and the fourth movable nut 1007 is rotated to move until the fourth movable nut 1007 contacts the retaining ring 1005. The pull rod 1003 pulls the telescopic tube 2 and the straight tube 1.
[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An adjustable end straight-through joint, comprising a straight pipe (1), a telescopic pipe (2) and a first movable nut (3), characterized in that: The outer surface of the straight tube (1) is connected with a fixing nut (4), the inner wall of the straight tube (1) is slidably connected with the outer surface of the telescopic tube (2), a sealing groove (5) is provided at one end of the straight tube (1) located on the telescopic tube (2), the first movable nut (3) is sleeved on the outside of the telescopic tube (2), the first movable nut (3) is threadedly connected with one end of the straight tube (1), the inner bottom wall of the first movable nut (3) is movably connected with a pressing plate (6), one side of the pressing plate (6) is movably connected with a sealing gasket (7), the other side of the sealing gasket (7) is connected with the inner wall of the sealing groove (5), the inner wall of the telescopic tube (2) is connected with an inner diameter tube (8), the outer side of the inner diameter tube (8) is sleeved with a rubber gasket (17), the outer surface of the telescopic tube (2) is threadedly connected with a second movable nut (9), and the outer side of the telescopic tube (2) is provided with a fixing mechanism (10).
2. The adjustable end straight-through connector according to claim 1, characterized in that: One end of the telescopic tube (2) is connected to a plurality of spring pieces (11), and the plurality of spring pieces (11) are arranged in a circular array. The plurality of spring pieces (11) are all located outside the inner diameter tube (8), and the side of the plurality of spring pieces (11) close to the inner diameter tube (8) is connected to inverted teeth (12).
3. The adjustable end straight-through connector according to claim 1, characterized in that: A clamping groove (15) is provided on the inner side of the straight tube (1), and a clamping pin (16) is connected to one side of the pressing sheet (6), and the outer surface of the clamping pin (16) is in contact with the inner wall of the clamping groove (15).
4. The adjustable end straight-through connector according to claim 1, characterized in that: The other end of the straight pipe (1) is connected to a fixed pipe (13), and the outer surface of the fixed pipe (13) is threadedly connected to a third movable nut (14).
5. The adjustable end straight-through connector according to claim 1, characterized in that: The fixing mechanism (10) comprises a first positioning ring (1001), the first positioning ring (1001) is connected to the outer surface of the telescopic tube (2), the outer surface of the first positioning ring (1001) is rotatably connected to a pull ring (1002), and both ends of the pull ring (1002) are rotatably connected to pull rods (1003) at fixed points.
6. The adjustable end straight-through connector according to claim 5, characterized in that: The outer surface of the straight tube (1) is connected to a second positioning ring (1004), and the outer surface of the second positioning ring (1004) is rotatably connected to a retaining ring (1005). Positioning grooves (1006) are provided at both ends of the retaining ring (1005), and the inner wall of the positioning groove (1006) is in contact with the outer surface of the pull rod (1003). One end of the pull rod (1003) located outside the retaining ring (1005) is threadedly connected to a fourth movable nut (1007), and one side of the fourth movable nut (1007) is in contact with one side of the retaining ring (1005).