A new type of internal drive lock ring-free tee

Abstract

The present invention relates to the technical field of tee pipes, and discloses a novel internally driven lock-ring-free tee. The device comprises a main pipe, an external pipe and a joint pipe fixedly installed in the middle of the main pipe, and the two ends of the main pipe are fixedly connected with side interface ends. The device also comprises: an interface assembly is provided on the outside of the external pipe, and a support assembly is symmetrically provided on the outside of the main pipe. The interface assembly comprises an outer sleeve installed on the outside of the external pipe, and the outer side of the outer sleeve is symmetrically fixedly connected with a side box body. A piston block is slidably installed inside the side box body, and a push block is fixedly connected to the side of the piston block away from the outer sleeve body. This solves the problem that the interface may be worn or loosened due to excessive medium pressure inside the tee or after long-term use, and the sealing of the interface becomes poor, and the medium may leak from the interface.

Description

Technical Field

[0001] The invention relates to the technical field of tee pipes, in particular to a novel internally driven lock ring-free tee. Background Art

[0002] An internally driven tee usually refers to a valve device that achieves fluid reversing control through hydraulic transmission. It is mainly used for automated control of fluid diversion or confluence in industrial piping systems. The design feature of the lock-less tee is that there is no lock-ring structure at its interface, which makes its installation and disassembly easier. It is usually connected by threads or clamps.

[0003] For example, a three-way joint that is easy to disassemble and assemble is provided with the announcement number CN216430834U, which includes a main body and a joint section. The main body is provided with three joint sections, and the three joint sections are all slidably sleeved with mounting sleeves on the circumferential side walls close to the ports. A sealing locking assembly is provided between the joint section and the mounting sleeve, and the sealing locking assembly includes a limiting hoop, a locking sleeve, a sealing ring groove, a first sealing ring, a first sealing ring, a compression spring and a second sealing ring. The limiting hoop is fixedly sleeved on the circumferential side wall of the joint section close to the main body, and the joint section close to the main body is fixedly sleeved with the limiting hoop. A locking sleeve is provided on the sliding sleeve on the circumferential side wall, which enables convenient disassembly and assembly of the tee joint and the steel pipe and steel parts. However, for tees without locking rings, which are connected by threads or clamps, excessive medium pressure inside the tee or after long-term use may cause wear or loosening of the interface. At this time, the sealing performance of the interface deteriorates and the medium may leak from the interface, thereby affecting the stability of the tee. When the medium pressure is too high, it may also cause cracks in the tee pipe. Cracks and other defects will lead to stress concentration and even cause leakage or bursting problems, endangering safety.

[0004] Therefore, a novel internal drive type lock ring-free tee is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a new type of internal drive lock ring-free tee to solve the problem that the medium pressure inside the tee is too high or after long-term use, which may cause wear or loosening of the interface. At this time, the sealing of the interface becomes poor and the medium may leak from the interface.

[0006] To achieve the above object, the present invention provides the following technical solution: a novel internal drive type lock ring-free tee, comprising a main pipe, an external pipe and a joint pipe fixedly installed in the middle of the main pipe, wherein both ends of the main pipe are fixedly connected to side interface ends;

[0007] Also includes:

[0008] An interface assembly is provided on the outside of the external pipe, and a support assembly is symmetrically provided on the outside of the main pipe;

[0009] The interface assembly includes an outer shell sleeved and mounted on the outside of the external tube, the outer shell is symmetrically fixedly connected to a side box, a piston block is slidably mounted inside the side box, and a push block is fixedly connected to the side of the piston block away from the outer shell;

[0010] A vertical rod is installed vertically and slidably inside the side box body, the bottom end of the vertical rod is fixedly connected to an inclined block, the push block abuts against the inclined surface of the inclined block, the top of the vertical rod is fixedly connected to a mounting plate, and the outer side of the outer shell is symmetrically fixedly installed with side columns;

[0011] The support assembly includes a slide rod symmetrically slidably mounted on the outside of the main pipe, one end of the upper slide rod is fixedly connected to a trapezoidal block, and the end of the slide rod away from the trapezoidal block is fixedly connected to an arc-shaped pressure plate.

[0012] Preferably, an adjustment handle is rotatably installed on the middle part of the outer side of the main pipe, the outer casing is slidably connected to the external pipe, and a sealing gasket is provided at the connection between the outer casing and the external pipe, the end of the joint pipe away from the main pipe is fixedly connected to the upper interface end, and one end of the external pipe is fixedly connected to the external end, the outer sides of the upper interface end and the external end are both provided with external threads, the inner side of the outer casing is provided with an internal thread, and the external thread is adapted to be connected, side holes are symmetrically opened on the lower part of the outer side of the outer casing, and the side box bodies are no less than four, and the number of the side holes is the same as that of the side box bodies, and an inner cavity is opened on the inner side of the side box body, and the side holes are communicated with the inner cavity.

[0013] By adopting the above technical solution, the operator rotates the outer sleeve, and the outer sleeve will be sleeved on the outside of the upper interface end, which is convenient for fixing the external end and the upper interface end. The rotation of the outer sleeve drives the side rod to rotate, and the side rod drives the side column to rotate, which is convenient for the subsequent side column to squeeze the trapezoidal block.

[0014] Preferably, a sliding groove is symmetrically provided on the upper and lower sides of the inner side of the side box body near the side hole, a spring 1 is fixedly connected to the inner side of the sliding groove near the vertical rod, and a slider is fixedly connected to one end of the spring 1, and the upper and lower sliders are respectively fixed to the top and bottom surfaces of the piston block.

[0015] By adopting the above technical solution, the leaked medium will enter the inner cavity through the side hole, the medium will push the piston block to move, the piston block will drive the slider to squeeze the spring 1, and the piston block will drive the push block to move.

[0016] Preferably, a second spring is sleeved on the outer side of the lower part of the vertical rod, the bottom end of the second spring is fixedly connected to the inclined block, the top of the second spring is fixedly connected to the top surface of the inner cavity, a warning light bead is fixedly installed on the top of the mounting plate, a contact switch is symmetrically fixedly installed on the bottom of the warning light bead, and a contact point is symmetrically fixedly installed on the top of the side box body. When the contact switch contacts the contact point, the warning light bead will light up.

[0017] By adopting the above technical solution, the push block pushes the inclined surface of the inclined block, causing the inclined block to rise. The inclined block compresses spring 2 and drives the mounting plate to rise. The mounting plate drives the warning light bead and the contact switch to rise. The contact switch is disconnected from the contact point, causing the warning light bead at this position to go out.

[0018] Preferably, two side rods are symmetrically fixedly connected to the outer side of the outer shell, one end of the side rod away from the outer shell is fixedly connected to the side column, and a fixing ring is fixedly connected to the middle of the side column.

[0019] By adopting the above technical solution, the outer sleeve rotates to drive the side rod to rotate, and the side rod drives the side column and the fixed ring to rotate, so that the side column rotates and descends.

[0020] Preferably, a fixed cover is fixedly connected to the outer side of the main pipe, and the support assembly also includes fixed blocks symmetrically fixedly connected to the outer side of the main pipe, and there are no less than three fixed blocks. The number of the sliding rods is the same as that of the fixed blocks, and the number of the arc-shaped pressure plates is also the same as that of the fixed blocks. Connecting strips are fixedly connected between adjacent sliding rods.

[0021] By adopting the above technical solution, the side column will squeeze the inclined surface of the trapezoidal block, and the trapezoidal block will drive the upper sliding rod to move. The sliding rod can drive the sliding rods at other positions to move through the connecting bar, and the sliding rod drives the arc pressure plate to move through the limit rod.

[0022] Preferably, the bottom surface of the arc-shaped pressure plate fits with the outer side of the main pipe, and a spring three is sleeved on the outer side of the sliding rod. The two ends of the spring three are respectively fixedly connected to the fixed block and the arc-shaped pressure plate. A clearance groove is provided on the side of the fixed cover close to the trapezoidal block, and the trapezoidal block is slidably connected to the clearance groove.

[0023] By adopting the above technical solution, the arc-shaped pressure plate will stretch the spring three, so that the multiple arc-shaped pressure plates slide and stretch out, thereby facilitating the tightening of the outer side of the main pipe and improving the external supporting force of the main pipe.

[0024] Preferably, an inner groove is formed on one side of the arc-shaped pressure plate close to the fixed block, the top of the inner groove is fixedly connected to a limit rod, the sliding rod is slidably connected to the limit rod, and the sliding rod is slidably connected to the inner groove.

[0025] By adopting the above technical solution, when the arc pressure plate moves to the position of the extrusion block, the inclined surface of the extrusion block will squeeze the arc pressure plate. At this time, the arc pressure plate drives the limit rod to slide on the slide rod, thereby facilitating the arc pressure plate to further press the main pipe.

[0026] Preferably, the support assembly further comprises an extrusion block symmetrically fixedly connected to the outside of the main pipe, the extrusion block is L-shaped, and the upper bottom surface of the extrusion block is inclined.

[0027] By adopting the above technical solution, the extrusion block is used to extrude the arc-shaped pressing plate, so that the arc-shaped pressing plate can press the outer side of the main pipe.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. By setting the interface assembly, the operator aligns the external connection end with the upper interface end, and first fixes the external connection end and the upper interface end with bolts. Since the inner side of the outer shell is provided with an internal thread, and the outer side of the external connection end and the upper interface end is provided with an external thread, the operator rotates the outer shell, and the outer shell will be sleeved on the outer side of the upper interface end, which is convenient for fixing the external connection end and the upper interface end without a lock ring. The rotation of the outer shell drives the side rod to rotate, and the side rod drives the side column and the fixing ring to rotate, and the side column will rotate and drop, which is convenient for the subsequent side column to squeeze the trapezoidal block, so that the support assembly can achieve the supporting and reinforcing effect. The blocking of the outer shell improves the firmness and sealing of the connection between the external connection end and the upper interface end. After the external connection end and the upper interface end are installed, the side hole is at the connection between the external connection end and the upper interface end. At the joint gap, the warning light bead is initially on. When leakage occurs at the gap, the leaked medium will enter the inner cavity through the side hole, and the medium will push the piston block to move. The piston block drives the slider to squeeze spring 1, and the piston block drives the push block to move. The push block pushes the inclined surface of the inclined block, causing the inclined block to rise. The inclined block compresses spring 2 and drives the mounting plate to rise. The mounting plate drives the warning light bead and the contact switch to rise. The contact switch is disconnected from the contact point, so that the warning light bead at this position goes out, thereby alerting the operator, allowing the operator to find the leakage point in time and deal with it. This solves the problem that the medium pressure inside the tee is too high or after long-term use, which may cause wear or loosening of the interface. At this time, the sealing of the interface becomes poor and the medium may leak from the interface.

[0030] 2. By setting a support assembly, as the side column rotates and descends, when the side hole is at the connecting gap between the external connection end and the upper interface end, the side column is at the lowest point, and the side column will squeeze the inclined surface of the trapezoidal block. The trapezoidal block will drive the upper sliding rod to move, and the sliding rod can drive the sliding rods at other positions to move through the connecting strip. The sliding rod drives the arc pressure plate to move through the limit rod, and the arc pressure plate stretches the spring three, so that multiple arc pressure plates slide and stretch apart, thereby facilitating the fastening of the outer side of the main pipe, improving the external supporting force of the main pipe, so as to adapt to the delivery of media with greater pressure, and when the arc pressure plate moves to the position of the extrusion block, the inclined surface of the extrusion block will squeeze the arc pressure plate, and at this time the arc pressure plate drives the limit rod to slide on the slide rod, so that the arc pressure plate is further pressed against the main pipe, thereby improving the supporting effect of the main pipe, reducing the situation that the main pipe is cracked due to medium pressure, extending the service life of the main pipe, and solving the problem that the three-way pipe may be cracked when the medium pressure is too high. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the first three-dimensional overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the second three-dimensional overall structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the main pipe and joint pipe structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the external tube structure of the present invention;

[0035] Figure 5 For the present invention Figure 4 A in the middle is an enlarged structural diagram;

[0036] Figure 6 This is a schematic diagram of the cross-sectional structure of the outer shell of the present invention;

[0037] Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle;

[0038] Figure 8 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0039] Figure 9 This is a schematic structural diagram of the outer shell of the present invention;

[0040] Figure 10 For the present invention Figure 9 The enlarged structural diagram at D in the middle;

[0041] Figure 11 This is a schematic diagram of the structure of the arc-shaped pressing plate of the present invention;

[0042] Figure 12 For the present invention Figure 11 The enlarged structural diagram at E in the middle;

[0043] Figure 13 Schematic diagram of the initial position of the trapezoidal block of the present invention.

[0044] In the figure: 1. main pipe; 2. joint pipe; 3. side interface end; 4. upper interface end; 5. adjustment handle; 6. external pipe; 7. external connection end; 8. interface assembly; 81. outer casing; 82. side box body; 83. side hole; 84. inner cavity; 85. sliding groove; 86. spring one; 87. slider; 88. piston block; 89. push block; 810. vertical rod; 811. oblique block; 812. spring two; 813. mounting plate; 814. warning light bead; 815. contact switch; 816. side rod; 817. side column; 818. fixing ring; 9. support assembly; 91. fixing cover; 92. fixing block; 93. sliding rod; 94. connecting strip; 95. arc pressure plate; 96. spring three; 97. trapezoidal block; 98. inner groove; 99. limit rod; 910. extrusion block. DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] See also Figure 1-Figure 3 The present invention provides a technical solution: a new type of internal drive type lock ring-free tee, comprising a main pipe 1, an external pipe 6 and a joint pipe 2 fixedly installed in the middle of the main pipe 1, wherein both ends of the main pipe 1 are fixedly connected with side interface ends 3, the end of the joint pipe 2 away from the main pipe 1 is fixedly connected with an upper interface end 4, and one end of the external pipe 6 is fixedly connected with an external connection end 7.

[0047] An interface assembly 8 is provided on the outside of the external tube 6, and the interface assembly 8 includes an outer sleeve 81 which is sleeved and installed on the outside of the external tube 6. The outer sides of the upper interface end 4 and the external connection end 7 are both provided with external threads, and the inner side of the outer sleeve 81 is provided with internal threads, and the external threads and the internal threads are adapted to be connected. The outer side of the outer sleeve 81 is symmetrically fixedly connected to a side box body 82, and a piston block 88 is slidably installed inside the side box body 82, and a push block 89 is fixedly connected to the side of the piston block 88 away from the outer sleeve 81.

[0048] An adjusting handle 5 is rotatably installed on the middle part of the outer side of the main pipe 1, the outer sleeve 81 is slidably connected to the external pipe 6, and a sealing gasket is provided at the connection between the outer sleeve 81 and the external pipe 6. Side holes 83 are symmetrically opened on the lower part of the outer side of the outer sleeve 81, and the side box body 82 has no less than four side holes 83, the number of which is the same as that of the side box body 82. An inner cavity 84 is opened on the inner side of the side box body 82, and the side holes 83 are connected to the inner cavity 84.

[0049] A vertical rod 810 is installed vertically and slidingly inside the side box body 82, and the bottom end of the vertical rod 810 is fixedly connected to an inclined block 811. The push block 89 abuts against the inclined surface of the inclined block 811. The top of the vertical rod 810 is fixedly connected to a mounting plate 813, and a warning light bead 814 is fixedly installed on the top of the mounting plate 813. The outer side of the outer shell 81 is symmetrically fixedly installed with a side column 817.

[0050] A sliding groove 85 is symmetrically provided on the upper and lower sides of the inner side of the side box body 82 near the side hole 83. A spring 86 is fixedly connected to the inner side of the sliding groove 85 near the vertical rod 810. One end of the spring 86 is fixedly connected to a slider 87. The upper and lower sliders 87 are respectively fixed to the top and bottom surfaces of the piston block 88.

[0051] A spring 2 812 is sleeved on the outer side of the lower part of the vertical rod 810, the bottom end of the spring 2 812 is fixedly connected to the inclined block 811, the top of the spring 2 812 is fixedly connected to the top surface of the inner cavity 84, and a contact switch 815 is symmetrically fixedly installed on the bottom of the warning light bead 814, and a contact point is symmetrically fixedly installed on the top of the side box body 82. When the contact switch 815 contacts the contact point, the warning light bead 814 will light up.

[0052] Two side rods 816 are symmetrically fixedly connected to the outer side of the outer shell 81 . One end of the side rod 816 away from the outer shell 81 is fixedly connected to the side column 817 . A fixing ring 818 is fixedly connected to the middle of the side column 817 .

[0053] Example 1: Figure 4-Figure 8 As shown, the operator aligns the external connection end 7 with the upper interface end 4, and first preliminarily fixes the external connection end 7 and the upper interface end 4 with bolts. Since the inner side of the outer sleeve 81 is provided with an internal thread, and the outer sides of the external connection end 7 and the upper interface end 4 are provided with an external thread, the operator rotates the outer sleeve 81, and the outer sleeve 81 will be sleeved on the outer side of the upper interface end 4, which is convenient for fixing the external connection end 7 and the upper interface end 4 without a locking ring.

[0054] The rotation of the outer shell 81 drives the side rod 816 to rotate, and the side rod 816 drives the side column 817 and the fixing ring 818 to rotate. The side column 817 will rotate and descend, which is convenient for the subsequent squeezing of the trapezoidal block 97 by the side column 817, so that the support assembly 9 can achieve the supporting and reinforcing effect. Through the obstruction of the outer shell 81, the firmness and sealing of the docking between the external connection end 7 and the upper interface end 4 are improved. After the external connection end 7 and the upper interface end 4 are installed, the side hole 83 is at the connection gap between the external connection end 7 and the upper interface end 4, and the initial state warning lamp bead 814 is lit.

[0055] When leakage occurs at the gap, the leaked medium will enter the inner cavity 84 through the side hole 83, and the medium will push the piston block 88 to move. The piston block 88 drives the slider 87 to squeeze the spring 1 86, and the piston block 88 drives the push block 89 to move. The push block 89 pushes the inclined surface of the inclined block 811, causing the inclined block 811 to rise. The inclined block 811 compresses the spring 2 812 and drives the mounting plate 813 to rise. The mounting plate 813 drives the warning light bead 814 and the contact switch 815 to rise. The contact switch 815 is disconnected from the contact point, so that the warning light bead 814 at this position goes out, thereby alerting the operator, allowing the operator to find the leakage point in time and deal with it, solving the problem that the medium pressure inside the tee is too high or after long-term use, which may cause wear or loosening of the interface. At this time, the sealing of the interface becomes poor and the medium may leak from the interface.

[0056] An internally driven three-way valve refers to a valve device that realizes fluid reversing control through an internal driving mechanism. It is mainly used for the diversion or confluence control of fluids in industrial piping systems. This type of valve device does not require an external power supply or manual operation, but relies on the pressure and temperature of the fluid itself as energy to drive the valve to work. The internally driven three-way regulating valve is divided into two categories: converging valves and diverting valves according to the way the fluid acts. The converging valve has two inlets, which flow out from one outlet after converging; the diverting valve has one inlet, which diverts into two outlets. The internally driven structure in the present invention is only used as a prior art and is installed inside the main pipe 1, and no further explanation is given.

[0057] A support assembly 9 is symmetrically arranged on the outside of the main pipe 1. The support assembly 9 includes a slide rod 93 symmetrically slidably installed on the outside of the main pipe 1. One end of the upper slide rod 93 is fixedly connected to a trapezoidal block 97, and the end of the slide rod 93 away from the trapezoidal block 97 is fixedly connected to an arc pressure plate 95.

[0058] A fixed cover 91 is fixedly connected to the outside of the main pipe 1. The support assembly 9 also includes fixed blocks 92 symmetrically fixedly connected to the outside of the main pipe 1. There are no less than three fixed blocks 92. The number of sliding rods 93 is the same as that of the fixed blocks 92. The number of arc-shaped pressure plates 95 is also the same as that of the fixed blocks 92. Connecting strips 94 are fixedly connected between adjacent sliding rods 93.

[0059] The bottom surface of the arc-shaped pressure plate 95 fits with the outer side of the main pipe 1, and the outer side of the slide rod 93 is sleeved with a spring three 96. The two ends of the spring three 96 are respectively fixedly connected to the fixed block 92 and the arc-shaped pressure plate 95. A clearance groove is opened on the side of the fixed cover 91 close to the trapezoidal block 97, and the trapezoidal block 97 is slidably connected to the clearance groove.

[0060] An inner groove 98 is formed on one side of the arc-shaped pressing plate 95 close to the fixed block 92 . A limit rod 99 is fixedly connected to the top of the inner groove 98 . The sliding rod 93 is slidably connected to the limit rod 99 , and the sliding rod 93 is slidably connected to the inner groove 98 .

[0061] The support assembly 9 further includes an extrusion block 910 symmetrically fixedly connected to the outside of the main pipe 1 . The extrusion block 910 is L-shaped, and the upper bottom surface of the extrusion block 910 is inclined.

[0062] Example 2: Figures 9-13 As shown, as the side column 817 rotates and descends, when the side hole 83 is at the connection gap between the external end 7 and the upper interface end 4, the side column 817 is at the lowest point, the side column 817 will squeeze the inclined surface of the trapezoidal block 97, and the trapezoidal block 97 will drive the upper slide rod 93 to move.

[0063] The slide rod 93 can drive the slide rods 93 at other positions to move through the connecting bar 94. The slide rod 93 drives the arc pressure plate 95 to move through the limit rod 99. The arc pressure plate 95 stretches the spring three 96, so that multiple arc pressure plates 95 slide and stretch out, thereby facilitating the fastening of the outer side of the main pipe 1, improving the external support force of the main pipe 1, and thus being able to adapt to the transportation of media with greater pressure.

[0064] When the arc-shaped pressure plate 95 moves to the position of the extrusion block 910, the inclined surface of the extrusion block 910 will squeeze the arc-shaped pressure plate 95. At this time, the arc-shaped pressure plate 95 drives the limit rod 99 to slide on the slide rod 93, thereby facilitating the arc-shaped pressure plate 95 to further press the main pipe 1, thereby improving the supporting effect of the main pipe 1, reducing the possibility of cracks in the main pipe 1 due to medium pressure, extending the service life of the main pipe 1, and solving the problem that cracks may occur in the three-way pipe when the medium pressure is too high.

[0065] Working principle: When using this device, first, Figures 1-13The inclined surface of the extrusion block 910 will squeeze the arc pressure plate 95, so that the arc pressure plate 95 can further press the main pipe 1 tightly, and the pressure of the main pipe 1 can be increased by 40%. The block improves the firmness and sealing of the docking of the external connection end 7 and the upper interface end 4. After the external connection end 7 and the upper interface end 4 are installed, the warning light bead 814 is lit in the initial state. When leakage occurs at the gap, the leaked medium will enter the inner cavity 84 through the side hole 83, and the medium will push the piston block 88 to move. The piston block 88 drives the slider 87 to squeeze the spring 1 86, and the piston block 88 drives the push block 89 to move. The push block 89 pushes the inclined surface of the inclined block 811, so that the inclined block 811 rises, the inclined block 811 compresses the spring 2 812 and drives the installation plate 813 to rise, and the installation plate 813 drives the warning light bead 814 and the contact switch 815 to rise. The contact switch 815 is disconnected from the contact point, so that the warning light bead 814 at this position goes out, thereby alerting the operator, so that the operator can find the leakage point in time and deal with it.

[0066] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0067] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel internal drive type lock ring-free tee, comprising a main pipe (1), an external pipe (6) and a joint pipe (2) fixedly installed in the middle of the main pipe (1), wherein both ends of the main pipe (1) are fixedly connected with side interface ends (3); It is characterized by: Also includes: An interface assembly (8) is provided on the outside of the external pipe (6), and a support assembly (9) is symmetrically provided on the outside of the main pipe (1); The interface assembly (8) comprises an outer casing (81) sleeved and mounted on the outside of the external pipe (6); a side box (82) is symmetrically fixedly connected to the outside of the outer casing (81); a piston block (88) is slidably mounted inside the side box (82); and a push block (89) is fixedly connected to the side of the piston block (88) away from the outer casing (81); A vertical rod (810) is vertically slidably mounted inside the side box (82), a slanted block (811) is fixedly connected to the bottom end of the vertical rod (810), the push block (89) abuts against the inclined surface of the slanted block (811), a mounting plate (813) is fixedly connected to the top of the vertical rod (810), and a side column (817) is symmetrically fixedly mounted on the outside of the outer shell (81); The support assembly (9) comprises a slide rod (93) symmetrically slidably mounted on the outside of the main pipe (1), one end of the upper slide rod (93) being fixedly connected to a trapezoidal block (97), and one end of the slide rod (93) away from the trapezoidal block (97) being fixedly connected to an arc-shaped pressure plate (95).

2. The novel internal drive type lock ring-free tee according to claim 1 is characterized in that: An adjusting handle (5) is rotatably mounted on the middle portion of the outer side of the main pipe (1), the outer casing (81) is slidably connected to the external pipe (6), and a sealing gasket is provided at the connection between the outer casing (81) and the external pipe (6). The end of the joint pipe (2) away from the main pipe (1) is fixedly connected to the upper interface end (4), and one end of the external pipe (6) is fixedly connected to the external connection end (7). The outer sides of the upper interface end (4) and the external connection end (7) are both provided with external threads. The inner side of the outer casing (81) is provided with internal threads, and the external threads are adapted to be connected. Side holes (83) are symmetrically opened on the lower portion of the outer side of the outer casing (81), and the side box body (82) has no less than four side holes (83), and the number of the side holes (83) is the same as that of the side box body (82). An inner cavity (84) is opened on the inner side of the side box body (82), and the side holes (83) are connected to the inner cavity (84).

3. The novel internal drive type lock ring-free tee according to claim 2 is characterized by: A sliding groove (85) is symmetrically provided on one side of the side box body (82) near the side hole (83), and a spring (86) is fixedly connected to one side of the sliding groove (85) near the vertical rod (810). One end of the spring (86) is fixedly connected to a slider (87), and the upper and lower sliders (87) are respectively fixed to the top and bottom surfaces of the piston block (88).

4. The novel internal drive type lock ring-free tee according to claim 3 is characterized by: A second spring (812) is sleeved on the outer side of the lower portion of the vertical rod (810), the bottom end of the second spring (812) is fixedly connected to the inclined block (811), the top end of the second spring (812) is fixedly connected to the top surface of the inner cavity (84), a warning light bead (814) is fixedly installed on the top of the mounting plate (813), a contact switch (815) is symmetrically fixedly installed on the bottom of the warning light bead (814), and a contact point is symmetrically fixedly installed on the top of the side box (82), and when the contact switch (815) contacts the contact point, the warning light bead (814) will light up.

5. The novel internal drive type lock ring-free tee according to claim 4 is characterized in that: Two side rods (816) are symmetrically and fixedly connected to the outer side of the outer shell (81), one end of the side rod (816) away from the outer shell (81) is fixedly connected to the side column (817), and the middle of the side column (817) is fixedly connected to a fixing ring (818).

6. The novel internal drive type lock ring-free tee according to claim 1 is characterized by: The outer side of the main pipe (1) is fixedly connected with a fixed cover (91), and the support assembly (9) further comprises fixed blocks (92) symmetrically fixedly connected to the outer side of the main pipe (1), and the number of the fixed blocks (92) is not less than three, the number of the sliding rods (93) is the same as that of the fixed blocks (92), and the number of the arc-shaped pressure plates (95) is also the same as that of the fixed blocks (92), and connecting strips (94) are fixedly connected between adjacent sliding rods (93).

7. The novel internal drive type lock ring-free tee according to claim 6 is characterized by: The bottom surface of the arc-shaped pressure plate (95) is in contact with the outer side of the main pipe (1), and the outer side of the slide rod (93) is sleeved with a spring three (96), and the two ends of the spring three (96) are fixedly connected to the fixed block (92) and the arc-shaped pressure plate (95), respectively. A clearance groove is provided on one side of the fixed cover (91) close to the trapezoidal block (97), and the trapezoidal block (97) is slidably connected to the clearance groove.

8. The novel internal drive type lock ring-free tee according to claim 7 is characterized in that: An inner groove (98) is provided on one side of the arc-shaped pressure plate (95) close to the fixed block (92), and a limit rod (99) is fixedly connected to the top of the inner groove (98), the slide rod (93) is slidably connected to the limit rod (99), and the slide rod (93) is slidably connected to the inner groove (98).

9. The novel internal drive type lock ring-free tee according to claim 8, characterized in that: The support assembly (9) further comprises an extrusion block (910) symmetrically fixedly connected to the outside of the main pipe (1); the extrusion block (910) is L-shaped, and the upper bottom surface of the extrusion block (910) is inclined.

Images