Check valve with signal feedback function

Abstract

The check valve with the signal feedback function comprises a valve body, a fixing ring is installed on the outer surface of the valve body, a plurality of threaded shafts are installed at the upper end of the fixing ring, a valve deck is arranged at the upper end of the valve body and the upper end of the fixing ring, a plurality of through holes are formed in the valve deck, a rotating ring is arranged at the position, corresponding to the through holes, of the upper end of the valve deck, and threads are arranged on the inner wall of the rotating ring. The lower portion of the outer surface of the rotating ring is provided with a matching gear, and the upper end of the valve deck is rotationally connected with a driving gear. The valve cover, the valve rod and the valve element are convenient and fast to disassemble and assemble, meanwhile, the valve rod drives the connecting block and the second contact piece to ascend, the second contact piece moves to make contact with the first contact pieces at different positions to generate feedback signals, the circuit board sends the feedback signals to the displayer, and therefore the opening degree of the valve element is known, and the safety is improved. And the working state of the check valve can be quickly mastered.

Description

Technical Field

[0001] The utility model relates to the field of check valves, in particular to a check valve with signal feedback. Background Art

[0002] A check valve is a valve with a circular disc as its opening and closing element. It operates by its own weight and the pressure of the medium to block the backflow of the medium. This type of valve is an automatic valve and is also known as a non-return valve, one-way valve, return valve, or isolation valve. The disc movement is categorized as either lift or swing. Existing check valves lack internal feedback mechanisms, making it impossible for users to determine the degree of valve core opening and accurately determine the operating status of the check valve. Therefore, those skilled in the art have provided a check valve with signal feedback to address the issues raised in the background technology above. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a check valve with signal feedback, comprising a valve body, a fixed ring is installed on the outer surface of the valve body, a plurality of threaded shafts are installed on the upper end of the fixed ring, a valve cover is provided on the valve body and the upper end of the fixed ring, a plurality of through holes are provided inside the valve cover, a rotating ring is provided at the position corresponding to the through holes on the upper end of the valve cover, a thread is provided on the inner wall of the rotating ring, a bearing is installed on the upper part of the outer surface of the rotating ring, and the bearing is fixedly connected to the valve cover, a matching gear is installed on the lower part of the outer surface of the rotating ring, and the upper end of the valve cover is rotatably connected to the driving gear;

[0004] A fixed cylinder is installed at the lower end of the valve cover, and the valve stem is connected to the fixed cylinder by sliding inside. A spring is installed at the upper end of the valve stem, and a valve core is installed at the lower end of the valve stem. The inner wall of the fixed cylinder is symmetrically provided with matching grooves and sliding grooves. Several contact pieces 1 are installed on the left wall of the matching groove, and one contact piece 1 is installed on the upper and lower walls of the matching groove. A connecting block is provided inside the matching groove, and contact piece 2 is installed on the left end, upper end and lower end of the connecting block.

[0005] Preferably, a rotating block is installed on the upper end of the driving gear, and an annular rack is provided on the upper end of the valve cover, and the annular rack is meshed with the driving gear and the matching gear.

[0006] Preferably, an annular groove is provided on the upper end of the valve cover, a matching ring is slidably connected inside the annular groove, and an annular rack is fixedly connected to the upper end of the matching ring, and the cross-sections of the annular groove and the matching ring are both T-shaped.

[0007] Preferably, a guide rod is installed inside the slide groove, the outer surface of the guide rod is slidably connected to the slider, and the slider is fixedly connected to the valve stem.

[0008] Preferably, a circuit board is provided in the valve cover, and the circuit board is electrically connected to the first contact piece and the second contact piece, and the circuit board is externally connected to a display.

[0009] Technical effects and advantages of this utility model:

[0010] The utility model makes it convenient and quick to disassemble and install the valve cover, valve stem and valve core. At the same time, the valve stem drives the connecting block and the second contact piece to rise, and the second contact piece moves and contacts the first contact piece at a different position to generate a feedback signal. The circuit board sends the feedback signal to the display, thereby understanding the opening degree of the valve core and quickly grasping the working status of the check valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of this application;

[0012] Figure 2 It is a structural diagram of the valve body of this application;

[0013] Figure 3 It is a structural diagram of the fixing ring of the present application;

[0014] Figure 4 It is a structural diagram of the valve cover of this application;

[0015] Figure 5 It is a structural diagram of the fixed cylinder of this application;

[0016] In the picture:

[0017] 1. Valve body; 2. Retaining ring; 3. Threaded shaft; 4. Valve cover; 5. Through hole; 6. Rotating ring; 7. Bearing; 8. Matching gear; 9. Ring rack;

[0018] 10. Annular groove; 11. Matching ring; 12. Driving gear; 13. Rotating block; 14. Fixed cylinder; 15. Valve stem; 16. Valve core; 17. Spring; 18. Slide groove; 19. Guide rod;

[0019] 20. Slider; 21. Mating groove; 22. Contact piece 1; 23. Connecting block; 24. Contact piece 2. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0021] See also Figures 1 to 5In this embodiment, a check valve with signal feedback is provided, comprising a valve body 1, a fixing ring 2 is installed on the outer surface of the valve body 1, a plurality of threaded shafts 3 are installed on the upper end of the fixing ring 2, a valve cover 4 is provided on the upper ends of the valve body 1 and the fixing ring 2, a plurality of through holes 5 are provided inside the valve cover 4, and the through holes 5 correspond to the positions of the threaded shafts 3, a rotating ring 6 is provided on the upper end of the valve cover 4 corresponding to the positions of the through holes 5, a thread is provided on the inner wall of the rotating ring 6, a bearing 7 is installed on the upper portion of the outer surface of the rotating ring 6, and the bearing 7 is fixedly connected to the valve cover 4, a matching gear 8 is installed on the lower portion of the outer surface of the rotating ring 6, the upper end of the valve cover 4 is rotatably connected to the driving gear 12, a rotating block 13 is installed on the upper end of the driving gear 12, an annular rack 9 is provided on the upper end of the valve cover 4, and the annular rack 9 is meshed with the driving gear 12 and the matching gear 8, an annular groove 10 is provided on the upper end of the valve cover 4, a matching ring 11 is slidably connected inside the annular groove 10, and the upper end of the matching ring 11 is fixedly connected to the annular rack 9, the annular groove 10 The cross-sections of the valve cover 4 and the matching ring 11 are both T-shaped. A fixed cylinder 14 is installed at the lower end of the valve cover 4. The fixed cylinder 14 is slidably connected to the valve stem 15. A spring 17 is installed at the upper end of the valve stem 15, and the spring 17 is fixedly connected to the valve cover 4. A valve core 16 is installed at the lower end of the valve stem 15, and a sealing ring is installed at the lower end of the valve core 16. A matching groove 21 and a slide groove 18 are symmetrically provided on the inner wall of the fixed cylinder 14. A guide rod 19 is installed inside the slide groove 18. The outer surface of the guide rod 19 is slidably connected to the slider 20, and the slider 20 is fixedly connected to the valve stem 15. Several contact pieces 22 are installed on the left wall of the matching groove 21, and a contact piece 1 22 is installed on the upper and lower walls of the matching groove 21. A connecting block 23 is provided inside the matching groove 21. Contact piece 24 is installed on the left end, upper end and lower end of the connecting block 23, and the contact piece 24 is in contact with the contact piece 1 22. A circuit board is provided in the valve cover 4, and the circuit board is electrically connected to the contact piece 1 22 and the contact piece 24, and the circuit board is externally connected to a display.

[0022] The working principle of the utility model is as follows: the valve cover 4 is covered on the valve body 1 and the upper end of the fixed ring 2, so that the fixed cylinder 14, the valve stem 15 and the valve core 16 are in the valve body 1, and at the same time, the threaded shaft 3 passes through the through hole 5 and is placed in the rotating ring 6. At the same time, the driving gear 12 is driven to rotate by the rotating block 13, and the driving gear 12 and the annular rack 9 are engaged to drive multiple matching gears 8 to rotate, and the matching gear 8 drives the rotating ring 6 to rotate. The rotating ring 6 is sleeved on the outside of the threaded shaft 3 through the thread on the inner wall, thereby fixing the valve cover 4 to the upper end of the valve body 1, and the valve stem 15 and the valve core 16 are pushed to move by the spring 17, so that the valve core 16 is closed;

[0023] When the check valve is opened, the valve core 16 pushes the valve stem 15 to rise, and the valve stem 15 drives the slider 20 to move on the outer surface of the guide rod 19. At the same time, the valve stem 15 drives the connecting block 23 and the second contact piece 24 to rise, and the second contact piece 24 moves and contacts the first contact piece 22 at a different position to generate a feedback signal. The circuit board sends the feedback signal to the display, thereby understanding the opening degree of the valve core 16 and quickly grasping the working status of the check valve.

[0024] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A check valve with signal feedback, comprising a valve body (1), characterized in that: A fixing ring (2) is installed on the outer surface of the valve body (1), and a plurality of threaded shafts (3) are installed on the upper end of the fixing ring (2). A valve cover (4) is provided on the upper ends of the valve body (1) and the fixing ring (2). A plurality of through holes (5) are provided inside the valve cover (4). A rotating ring (6) is provided at the position corresponding to the through holes (5) on the upper end of the valve cover (4). The inner wall of the rotating ring (6) is provided with a thread. A bearing (7) is installed on the upper portion of the outer surface of the rotating ring (6), and the bearing (7) is fixedly connected to the valve cover (4). A matching gear (8) is installed on the lower portion of the outer surface of the rotating ring (6). The upper end of the valve cover (4) is rotatably connected to the driving gear (12). A fixed cylinder (14) is installed at the lower end of the valve cover (4), and a valve stem (15) is slidably connected inside the fixed cylinder (14). A spring (17) is installed at the upper end of the valve stem (15), and a valve core (16) is installed at the lower end of the valve stem (15). A matching groove (21) and a sliding groove (18) are symmetrically provided on the inner wall of the fixed cylinder (14). A plurality of contact pieces (22) are installed on the left wall of the matching groove (21), and a contact piece (22) is installed on the upper and lower walls of the matching groove (21). A connecting block (23) is provided inside the matching groove (21), and contact pieces (24) are installed on the left end, the upper end and the lower end of the connecting block (23).

2. A check valve with signal feedback according to claim 1, characterized in that: A rotating block (13) is installed on the upper end of the driving gear (12), and an annular rack (9) is provided on the upper end of the valve cover (4). The annular rack (9) is meshed with the driving gear (12) and the matching gear (8).

3. A check valve with signal feedback according to claim 1, characterized in that: An annular groove (10) is provided at the upper end of the valve cover (4), a matching ring (11) is slidably connected inside the annular groove (10), and the upper end of the matching ring (11) is fixedly connected to the annular rack (9), and the cross-sections of the annular groove (10) and the matching ring (11) are both T-shaped.

4. A check valve with signal feedback according to claim 1, characterized in that: A guide rod (19) is installed inside the slide groove (18), and the outer surface of the guide rod (19) is slidably connected to the slider (20), and the slider (20) is fixedly connected to the valve stem (15).

5. The check valve with signal feedback according to claim 1, characterized in that: A circuit board is provided in the valve cover (4), and the circuit board is electrically connected to the first contact piece (22) and the second contact piece (24), and the circuit board is externally connected to a display.

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