Novel radio frequency card water meter

Abstract

The invention relates to the technical field of water meters, and discloses a novel radio frequency card water meter which comprises a shell, a mounting groove is formed in the shell, a two-way lead screw is rotatably mounted on the side wall of the mounting groove, a cover plate is fixedly mounted on the two-way lead screw, a handle is fixedly mounted on the cover plate, an L-shaped frame is mounted on the two-way lead screw in a threaded mode, and a clamping plate is fixedly mounted on the L-shaped frame. According to the radio frequency card water meter convenient to disassemble, the radio frequency card water meter body convenient to disassemble is arranged, the radio frequency card water meter body can be clamped in the vertical direction through the movable plate and the protective pad, the radio frequency card water meter body can be clamped in the horizontal direction through the two clamping plates, and therefore the radio frequency card water meter body can be fixed more stably; the card reader is further provided with the guide frame which can be opened in a rotating mode, when the guide frame moves to the outside of the shell from the inside of the shell, the guide frame can be driven to rotate to a certain angle under the action of the torsion spring, and card taking is more convenient when a card needs to be taken.

Description

Technical Field

[0001] The invention relates to the technical field of water meters, in particular to a novel radio frequency card water meter. Background Art

[0002] The RFID card prepaid water meter is an electronic water meter that uses RFID technology to read and bill water meters in a prepaid manner. Users need to open an account at the management department's business office and purchase a user card for the corresponding amount of water, and then insert the user card into the card slot of the water meter. When the water meter reading reaches the preset value, the water meter will automatically shut down, and the user needs to purchase a user card again to continue using it. The main advantage of this water meter is that it can realize the principle of paying first and then using water, effectively avoiding problems such as waste of water resources and water theft. At the same time, due to the use of electronic technology, functions such as remote meter reading and automatic billing can be realized, which improves management efficiency and user convenience.

[0003] When using the existing radio frequency card water meter, the radio frequency card needs to be inserted into the sensing part inside the device to make the water meter discharge water. The use environment of the radio frequency card water meter includes a humid environment such as a bathroom, and the reading area of ​​the radio frequency card water meter is generally exposed to the outside. During long-term use, the humid environment will cause some problems in the reading area of ​​the radio frequency card water meter, such as poor contact or susceptibility to interference. At the same time, when the existing radio frequency card water meter needs to be disassembled and replaced or disassembled for maintenance, it is more troublesome and needs to be disassembled as a whole. Therefore, a new type of radio frequency card water meter is needed. Summary of the invention

[0004] The purpose of the present invention is to provide a novel radio frequency card water meter, which solves the problems raised in the background technology.

[0005] An embodiment of the present application provides a new type of radio frequency card water meter, including a shell, a mounting groove is opened on the shell, a bidirectional screw rod is rotatably mounted on the side wall of the mounting groove, a cover plate is fixedly mounted on the bidirectional screw rod, a handle is fixedly mounted on the cover plate, an L-shaped frame is threadedly mounted on the bidirectional screw rod, a splint is fixedly mounted on the L-shaped frame, and the upper end of the L-shaped frame is against the top surface of the mounting groove.

[0006] By adopting the above technical solution, when the device needs to be used, the pull block is pulled to drive the placement frame to move upward. When the placement frame moves upward, it will drive the guide frame to move upward synchronously. At this time, under the action of the torsion spring, the rotating rod will be driven to rotate, which will cause the guide frame to rotate. At this time, the radio frequency card is placed between the support pad and the guide frame, and then the pull block is pushed downward to put the radio frequency card into the shell. The radio frequency card can be matched with the sensing area of ​​the installed radio frequency card water meter body to achieve water discharge. Waterproof pads are provided on the placement frame and the guide frame. When the radio frequency card water meter body in the shell needs to be adjusted When disassembling, repairing or replacing, pull the handle to drive the cover to rotate and open. When the cover is rotated and opened, it will drive the bidirectional screw to rotate, thereby driving the L-shaped frame to move. When the L-shaped frame moves, it will drive the clamping plate to move, thereby loosening the clamping of the radio frequency card water meter body. Then move the toggle button at this time to drive the thin rod to move, and drive the thick rod to move. When the thick rod moves to the circular mounting groove, the moving plate will move downward under the action of gravity, and the moving plate can be removed. After releasing the hand, the thin rod will be reset under the action of the spring, thereby driving the thick rod and the toggle button to reset.

[0007] Optionally, a movable plate is slidably mounted on the inner wall of the mounting groove, a radio frequency card water meter body is mounted on the movable plate, a water inlet pipe is arranged at the upper end of the radio frequency card water meter body, and a water outlet pipe is arranged at the lower end of the radio frequency card water meter body.

[0008] By adopting the technical solution, the device is easy to use.

[0009] Optionally, a protective pad is fixedly installed on the top of the mounting groove.

[0010] By adopting the above technical solution, the main body of the radio frequency card water meter can be fixed under the action of the protective pad and the movable plate.

[0011] Optionally, a partition is fixedly installed in the installation groove, a placement frame is slidably installed on the inner wall of the installation groove on the other side of the partition, a pulling block is fixedly installed on the upper end of the placement frame, a support pad is fixedly installed on the inner wall of the placement frame, a rotating rod is rotatably installed on the inner wall of the placement frame, a guide frame is fixedly installed on the rotating rod, a torsion spring is sleeved on the part of the rotating rod located between the guide frame and the placement frame, one end of the torsion spring is fixedly connected to the placement frame, and the other end of the torsion spring is fixedly connected to the guide frame.

[0012] By adopting the above technical solution, the pull block is pulled to drive the placement frame to move upward. When the placement frame moves upward, it will drive the guide frame to move upward synchronously. At this time, under the action of the torsion spring, the rotating rod will be driven to rotate, which will cause the guide frame to rotate. At this time, the radio frequency card is placed between the support pad and the guide frame, and then the pull block is pushed downward to place the radio frequency card into the shell. The radio frequency card can be aligned with the sensing area of ​​the installed radio frequency card water meter body to achieve water discharge.

[0013] Optionally, a fixing plate is fixedly installed on the inner wall of the mounting groove, a rectangular groove is opened on the fixing plate, a guide rod is fixedly installed on the side wall of the rectangular groove, a thin rod is slidably installed on the guide rod, a toggle button is fixedly installed on the upper end of the thin rod, and a thick rod is fixedly installed on the lower end of the thin rod.

[0014] By adopting the above technical solution, when the toggle button is moved, the thin rod will be driven to move on the guide rod, thereby driving the thick rod to move.

[0015] Optionally, a spring is sleeved on a portion of the guide rod between the thin rod and the rectangular groove, one end of the spring is fixedly connected to the thin rod, and the other end of the spring is fixedly connected to a side wall of the rectangular groove.

[0016] By adopting the above technical solution, when the toggle button is moved, the spring will be squeezed. After the hand is released, the thin rod will be reset under the action of the spring, thereby driving the thick rod and the toggle button to reset.

[0017] Optionally, a placement slot is provided on the movable plate, and a card slot is provided on the movable plate.

[0018] By adopting the above technical solution, the radio frequency card water meter body can be installed on the movable plate through the placement slot, and then the movable plate can be fixed through the cooperation of the slot and the thick rod and the thin rod.

[0019] Optionally, the card slot includes a circular mounting slot and a rectangular mounting slot, the width of the rectangular mounting slot is consistent with the diameter of the thin rod, and the diameter of the circular mounting slot is consistent with the diameter of the thick rod.

[0020] By adopting the above technical solution, the movable plate can be removed only when the thick rod moves to the circular installation groove.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. The present invention provides a radio frequency card water meter body that is easy to disassemble. The radio frequency card water meter body can be clamped in the vertical direction by a movable plate and a protective pad, and the radio frequency card water meter body can be clamped in the horizontal direction by two clamping plates, so that the radio frequency card water meter body is fixed more firmly to prevent movement during operation; 2. The present invention provides a rotatable guide frame. When the guide frame moves from inside the shell to outside the shell, the torsion spring can drive the guide frame to rotate to a certain angle, which is more convenient when the card needs to be taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure after the cover plate is removed in the present invention; Figure 3 It is a side view structural schematic diagram of the present invention; Figure 4 It is a front view structural schematic diagram of the placement frame and the guide frame of the present invention; Figure 5 It is a schematic diagram of the top view of the fixing plate of the present invention; Figure 6 It is a structural schematic diagram of the connection between the guide rod and the thin rod of the present invention; Figure 7 It is a schematic diagram of the top view of the movable plate in the present invention.

[0023] In the figure: 1. Shell; 2. Cover plate; 3. Handle; 4. Water inlet pipe; 5. Water outlet pipe; 6. Installation groove; 7. Bidirectional screw rod; 8. Rectangular installation groove; 9. L-shaped frame; 10. Clamp plate; 11. Protective pad; 12. Radio frequency card water meter body; 13. Moving plate; 14. Fixed plate; 15. Toggle button; 16. Placement frame; 17. Guide frame; 18. Support pad; 19. Rotating rod; 20. Torsion spring; 21. Rectangular groove; 22. Guide rod; 23. Spring; 24. Thin rod; 25. Thick rod; 26. Card slot; 27. Placement slot; 28. Partition; 29. ​​Pull block; 30. Circular installation groove. DETAILED DESCRIPTION

[0024] See also Figure 1-7 The present invention provides a technical solution: a new type of radio frequency card water meter, comprising a shell 1, a mounting groove 6 is opened on the shell 1, a bidirectional screw rod 7 is rotatably installed on the side wall of the mounting groove 6, a cover plate 2 is fixedly installed on the bidirectional screw rod 7, a handle 3 is fixedly installed on the cover plate 2, an L-shaped frame 9 is threadedly installed on the bidirectional screw rod 7, a clamping plate 10 is fixedly installed on the L-shaped frame 9, and the upper end of the L-shaped frame 9 is against the top surface of the mounting groove 6.

[0025] In the technical solution of the present invention, Figure 2As shown, a movable plate 13 is slidably installed on the inner wall of the installation groove 6, and a radio frequency card water meter body 12 is installed on the movable plate 13. A water inlet pipe 4 is arranged at the upper end of the radio frequency card water meter body 12, and a water outlet pipe 5 is arranged at the lower end of the radio frequency card water meter body 12 for easy use.

[0026] In the technical solution of the present invention, Figure 2 As shown, a protective pad 11 is fixedly installed on the top of the installation groove 6. Under the action of the protective pad 11 and the movable plate 13, the radio frequency card water meter body 12 can be fixed.

[0027] In the technical solution of the present invention, Figure 2 , 3 As shown in FIG. 4 , a partition 28 is fixedly installed in the mounting groove 6, a placement frame 16 is slidably installed on the inner wall of the mounting groove 6 on the other side of the partition 28, a pull block 29 is fixedly installed on the upper end of the placement frame 16, a support pad 18 is fixedly installed on the inner wall of the placement frame 16, a rotating rod 19 is rotatably installed on the inner wall of the placement frame 16, a guide frame 17 is fixedly installed on the rotating rod 19, a torsion spring 20 is sleeved on the portion of the rotating rod 19 located between the guide frame 17 and the placement frame 16, and one end of the torsion spring 20 is fixedly connected to the placement frame 16 Then, the other end of the torsion spring 20 is fixedly connected to the guide frame 17, and the pull block 29 is pulled to drive the placement frame 16 to move upward. When the placement frame 16 moves upward, it will drive the guide frame 17 to move upward synchronously. At this time, under the action of the torsion spring 20, the rotating rod 19 will be driven to rotate, which will cause the guide frame 17 to rotate. At this time, the radio frequency card is placed between the support pad 18 and the guide frame 17, and then the pull block 29 is pushed downward to place the radio frequency card into the housing 1. The radio frequency card can be aligned with the sensing area of ​​the installed radio frequency card water meter body 12 to achieve water discharge.

[0028] In the technical solution of the present invention, Figure 5 As shown, a fixing plate 14 is fixedly installed on the inner wall of the mounting groove 6, a rectangular groove 21 is opened on the fixing plate 14, a guide rod 22 is fixedly installed on the side wall of the rectangular groove 21, a thin rod 24 is slidably installed on the guide rod 22, a toggle button 15 is fixedly installed on the upper end of the thin rod 24, and a thick rod 25 is fixedly installed on the lower end of the thin rod 24. When the toggle button 15 is moved, the thin rod 24 will be driven to move on the guide rod 22, thereby driving the thick rod 25 to move.

[0029] In the technical solution of the present invention, Figure 5 and 6As shown, the portion of the guide rod 22 between the thin rod 24 and the rectangular groove 21 is sleeved with a spring 23, one end of the spring 23 is fixedly connected to the thin rod 24, and the other end of the spring 23 is fixedly connected to the side wall of the rectangular groove 21. When the toggle button 15 is moved, the spring 23 will be squeezed. After releasing the hand, the thin rod 24 will be reset under the action of the spring 23, thereby driving the thick rod 25 and the toggle button 15 to reset.

[0030] In the technical solution of the present invention, Figure 7 As shown, the movable plate 13 is provided with a placement groove 27, and the movable plate 13 is provided with a card slot 26. The radio frequency card water meter body 12 can be installed on the movable plate 13 through the placement groove 27, and then the movable plate 13 is fixed by the cooperation of the card slot 26, the thick rod 25 and the thin rod 24.

[0031] In the technical solution of the present invention, Figure 6 and 7 As shown, the card slot 26 includes a circular mounting slot 30 and a rectangular mounting slot 8. The width of the rectangular mounting slot 8 is consistent with the diameter of the thin rod 24, and the diameter of the circular mounting slot 30 is consistent with the diameter of the thick rod 25. Only when the thick rod 25 moves to the circular mounting slot 30, the movable plate 13 can be removed.

[0032] By adopting the above technical solution, when the device needs to be used, the pull block 29 is pulled to drive the placement frame 16 to move upward. When the placement frame 16 moves upward, the guide frame 17 will be driven to move upward synchronously. At this time, under the action of the torsion spring 20, the rotating rod 19 will be driven to rotate, which will cause the guide frame 17 to rotate. At this time, the radio frequency card is placed between the support pad 18 and the guide frame 17, and then the pull block 29 is pushed downward to put the radio frequency card into the shell 1. The radio frequency card can be matched with the sensing area of ​​the installed radio frequency card water meter body 12 to achieve water discharge. The placement frame 16 and the guide frame 17 are both provided with waterproof pads. When the radio frequency card water meter body 12 in the shell 1 needs to be adjusted, the water meter body 12 in the shell 1 can be adjusted. When disassembling, repairing or replacing, pull the handle 3 to drive the cover 2 to rotate and open. When the cover 2 is rotated and opened, the bidirectional screw rod 7 will be driven to rotate, thereby driving the L-shaped frame 9 to move. When the L-shaped frame 9 moves, the clamping plate 10 will be driven to move, thereby loosening the clamping of the radio frequency card water meter body 12. Then move the toggle button 15 at this time to drive the thin rod 24 to move and the thick rod 25 to move. When the thick rod 25 moves to the circular mounting groove 30, the movable plate 13 will move downward under the action of gravity, and the movable plate 13 can be removed. After releasing the hand, the thin rod 24 will be reset under the action of the spring 23, thereby driving the thick rod 25 and the toggle button 15 to reset.

Claims

1. A new type of radio frequency card water meter, characterized by: The invention comprises a shell (1), wherein a mounting groove (6) is formed on the shell (1), a bidirectional screw rod (7) is rotatably mounted on the side wall of the mounting groove (6), a cover plate (2) is fixedly mounted on the bidirectional screw rod (7), a handle (3) is fixedly mounted on the cover plate (2), an L-shaped frame (9) is threadedly mounted on the bidirectional screw rod (7), a clamping plate (10) is fixedly mounted on the L-shaped frame (9), and the upper end of the L-shaped frame (9) abuts against the top surface of the mounting groove (6).

2. A new type of radio frequency card water meter according to claim 1, characterized in that: A movable plate (13) is slidably mounted on the inner wall of the mounting groove (6), a radio frequency card water meter body (12) is mounted on the movable plate (13), a water inlet pipe (4) is arranged at the upper end of the radio frequency card water meter body (12), and a water outlet pipe (5) is arranged at the lower end of the radio frequency card water meter body (12).

3. A new type of radio frequency card water meter according to claim 1, characterized in that: A protective pad (11) is fixedly mounted on the top of the mounting groove (6).

4. A new type of radio frequency card water meter according to claim 1, characterized in that: A partition (28) is fixedly installed in the installation groove (6), a placement frame (16) is slidably installed on the inner wall of the installation groove (6) on the other side of the partition (28), a pull block (29) is fixedly installed on the upper end of the placement frame (16), a support pad (18) is fixedly installed on the inner wall of the placement frame (16), a rotating rod (19) is rotatably installed on the inner wall of the placement frame (16), a guide frame (17) is fixedly installed on the rotating rod (19), a torsion spring (20) is sleeved on the portion of the rotating rod (19) located between the guide frame (17) and the placement frame (16), one end of the torsion spring (20) is fixedly connected to the placement frame (16), and the other end of the torsion spring (20) is fixedly connected to the guide frame (17).

5. A new type of radio frequency card water meter according to claim 1, characterized in that: A fixing plate (14) is fixedly mounted on the inner wall of the mounting groove (6), a rectangular groove (21) is formed on the fixing plate (14), a guide rod (22) is fixedly mounted on the side wall of the rectangular groove (21), a thin rod (24) is slidably mounted on the guide rod (22), a toggle button (15) is fixedly mounted on the upper end of the thin rod (24), and a thick rod (25) is fixedly mounted on the lower end of the thin rod (24).

6. A new type of radio frequency card water meter according to claim 5, characterized in that: A spring (23) is sleeved on the portion of the guide rod (22) located between the thin rod (24) and the rectangular groove (21); one end of the spring (23) is fixedly connected to the thin rod (24), and the other end of the spring (23) is fixedly connected to the side wall of the rectangular groove (21).

7. A new type of radio frequency card water meter according to claim 2, characterized in that: The movable plate (13) is provided with a placement groove (27), and the movable plate (13) is provided with a clamping groove (26).

8. A new type of radio frequency card water meter according to claim 7, characterized in that: The clamping groove (26) comprises a circular mounting groove (30) and a rectangular mounting groove (8), the width of the rectangular mounting groove (8) being consistent with the diameter of the thin rod (24), and the diameter of the circular mounting groove (30) being consistent with the diameter of the thick rod (25).

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