Instrument deflection detection device

Abstract

The application discloses a kind of instrument deflection detection devices, belongs to instrument detection technical field, including shell, the inside of the shell is formed with horizontal water inlet channel and vertical counting channel, coaxial transmission shaft is arranged in the water inlet channel, the transmission shaft is connected to rotating fan, the rotating fan is located in one side of counting channel, coaxial transmission shaft is arranged in the counting channel, the transmission shaft is connected to the transmission gear set of instrument, the transmission shaft is connected to transmission shaft by transmission assembly;Sealingly installed in the shell is end plate, the outside of the transmission assembly is fixed with axial transmission rod, the axial transmission rod is coaxially arranged with transmission shaft, the axial transmission rod is connected with sensing assembly after passing through the end plate, the sensing assembly is connected with alarm, the alarm is used to alarm after axial transmission rod is axially moved.The application can be used for the deflection detection of instrument transmission shaft, so as to maintain instrument in time.

Description

Technical Field

[0001] This invention belongs to the field of water meter maintenance technology, specifically relating to a meter deflection detection device. Background Technology

[0002] Most traditional water meters measure water flow through a rotating fan inside the casing. The fan's shaft is parallel to the water flow direction, and is typically perpendicular to the drive shaft of the pointer gear. However, during use, due to aging or other factors, the fan's shaft can easily shift axially under the impact of water flow, causing the drive shaft of the gear to deflect and affecting the accuracy of the readings. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide an instrument deflection detection device, which can be used to detect the deflection of the instrument drive shaft, so as to facilitate timely maintenance of the instrument.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] This invention discloses an instrument deflection detection device, comprising a housing, an inner side of which a horizontal water inlet channel and a vertical counting channel are formed. A rotating shaft is coaxially arranged within the water inlet channel and connected to a rotating fan located on one side of the counting channel. A transmission shaft is coaxially arranged within the counting channel and connected to a transmission gear set of the instrument. The rotating shaft is connected to the transmission shaft via a transmission assembly. An end plate is sealed and installed inside the housing. An axial transmission rod is fixed to the outer side of the transmission assembly and is coaxially arranged with the rotating shaft. The axial transmission rod extends through the end plate and is connected to a sensing assembly. The sensing assembly is connected to an alarm, which is used to trigger an alarm when the axial transmission rod deviates axially.

[0006] Furthermore, the sensing component includes a sheath fixed to an end plate. A compression channel and a squeezing channel are formed within the sheath, with their ends perpendicularly connected. A compression piston is sealed and installed within the compression channel. The compression piston is fixedly connected to an axial transmission rod. The sealed space formed by the compression piston and the squeezing piston is filled with hydraulic oil. A squeezing piston is sealed and installed within the squeezing channel. The squeezing piston is connected to a support rod. The support rod is fixedly connected to a sleeve. The sleeve is slidably fitted onto the outside of a lever. The middle of the lever is hinged to a support. The end of the lever away from the sleeve is hinged to the output end of a tension sensor. The height of the tension sensor is less than the height of the support. The tension sensor is connected to an alarm via a controller.

[0007] Furthermore, a nut is connected to the end of the lever away from the force sensor, and the nut is threadedly connected to the lever.

[0008] Furthermore, an elastic recovery device is connected between the transmission assembly and the end plate.

[0009] Furthermore, a first flange is connected to the housing at one end where the water inlet channel is located, and a water outlet channel is fixedly connected to the end of the housing away from the water inlet channel. The water outlet channel is perpendicular to and connected to the water inlet channel, and a second flange is connected to the outer end of the water outlet channel.

[0010] Furthermore, a step is provided inside the opening of the water inlet channel, and a fixing ring is installed inside the step. Several guide vanes are evenly distributed along the circumference of the fixing ring on the inner side of the fixing ring.

[0011] Furthermore, a drain port is provided on the housing, and a screw is internally threaded into the drain port. The drain port is located between the fixed ring and the rotating fan.

[0012] Furthermore, the transmission assembly includes a main body formed by a horizontal tube and a vertical tube vertically connected together. A first bevel gear is disposed inside the horizontal tube. The rotating shaft passes through the horizontal tube coaxially and is connected to the first bevel gear. A second bevel gear is disposed inside the vertical tube. The transmission shaft passes through the vertical tube coaxially and is connected to the second bevel gear. The first bevel gear meshes with the second bevel gear.

[0013] Furthermore, a pressure plate is slidably disposed on the outer side of the vertical tube, and the pressure plate is connected to the instrument through a damping spring, which is sleeved on the outer side of the vertical tube.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention discloses an instrument deflection detection device. By setting an axial transmission rod coaxially with the rotating shaft, when the rotating shaft drives the transmission shaft to deflect excessively through the transmission assembly, the axial transmission rod triggers the sensing assembly, and then an alarm is triggered by the axial transmission rod after axial movement, so as to facilitate the subsequent maintenance of the device.

[0016] In the device of the present invention, by connecting the rotating shaft and the transmission shaft through a transmission component, it is convenient to count the flow rate and to promptly feed back the deflection of the transmission shaft to the sensing component and the alarm. Attached Figure Description

[0017] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0018] Figure 1 This is a schematic diagram of the internal structure of the device of the present invention;

[0019] Figure 2 for Figure 1 The main view;

[0020] Figure 3 This is a cross-sectional view of the sensing component;

[0021] Figure 4 This is a schematic diagram of the sensing component.

[0022] Figure 5 This is a schematic diagram of the guide vane structure;

[0023] Figure 6 This is a schematic diagram of the external structure of the transmission assembly;

[0024] Figure 7 This is a schematic diagram of the structure of the first bevel gear and the second bevel gear.

[0025] The following components are labeled in the attached diagram: 1. Housing; 2. Inlet channel; 3. Counting channel; 4. Rotating shaft; 5. Rotating fan; 6. Drive shaft; 7. Drive assembly; 8. End plate; 9. Axial drive rod; 10. Sensing assembly; 11. Sheath; 12. Compression channel; 13. Extrusion channel; 14. Compression piston; 15. Extrusion piston; 16. Support rod; 17. Sleeve; 18. Lever; 19. Support; 20. Tension sensor; 21. Nut; 22. Elastic recovery device; 23. First flange; 24. Outlet pipe; 25. Second flange; 26. Step; 27. Fixing ring; 28. Guide vane; 29. ​​Sewage outlet; 30. Screw; 31. Horizontal pipe; 32. Vertical pipe; 33. First bevel gear; 34. Second bevel gear; 35. Pressure plate; 36. Damping spring; 37. Instrument. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1-7 As shown, the present invention discloses a deflection detection device for instrument 37, comprising a housing 1, which is also formed by connecting two horizontal and vertical pipes. To illustrate the internal component structure of the housing 1, only half of the housing 1 is shown here; the other half is symmetrical to it, so those skilled in the art should understand its complete structure. Corresponding to the outer shape of the housing 1, a horizontal water inlet channel 2 and a vertical counting channel 3 are formed on the inner side of the housing 1. A rotating shaft 4 is coaxially arranged inside the water inlet channel 2, and the rotating shaft 4 is connected to a rotating fan 5. Water flows in from the water inlet channel 2 and out from the water outlet channel, which can drive the rotating fan 5 to rotate.

[0028] The rotating fan 5 is located on one side of the counting channel 3. A transmission shaft 6 is coaxially arranged inside the counting channel 3. The transmission shaft 6 is connected to the transmission gear set of the instrument 37. The output shaft of the transmission gear set is connected to the pointer, which drives the pointer to deflect to achieve the counting function. The rotating shaft 4 is connected to the transmission shaft 6 through the transmission assembly 7, realizing the transmission operation of the rotating shaft 4. In this invention, an end plate 8 is sealed and installed inside the housing 1. An axial transmission rod 9 is fixed on the outside of the transmission assembly 7. The axial transmission rod 9 is coaxially arranged with the rotating shaft 4. After the axial transmission rod 9 passes through the end plate 8, it is connected to the sensing assembly 10. By setting the axial transmission rod 9 coaxially with the rotating shaft 4, when the rotating shaft 4 drives the transmission shaft 6 to deflect excessively through the transmission assembly 7, the axial transmission rod 9 triggers the sensing assembly 10. The alarm is used to alarm after the axial transmission rod 9 moves axially.

[0029] In this embodiment, the sensing component 10 includes a sheath 11 fixed to the end plate 8. A compression channel 12 and a squeezing channel 13 are formed within the sheath 11, with their ends perpendicularly connected. The compression channel 12 is coaxial with the axis of the axial transmission rod 9, and the squeezing channel 13 is perpendicular to the axis of the compression channel 12. The end of the compression channel 12 away from the squeezing channel 13 is fixedly connected to the end plate 8. A compression piston 14 is sealed and installed within the compression channel 12, and is fixedly connected to the axial transmission rod 9. The sealed space formed by the compression piston 14 and the squeezing piston 15 is filled with hydraulic oil. A squeezing piston 15 is sealed and installed within the squeezing channel 13. The squeezing piston 15 is connected to a support rod 16, and the support rod 16 is fixedly connected to a sleeve 17. The sleeve 17 is slidably fitted onto the outside of a lever 18. The middle part of the lever 18 is hinged to a support 19. The end of the lever 18 away from the sleeve 17 is hinged to the output end of a tension sensor 20. The height of the tension sensor 20 is less than the height of the support 19. The tension sensor 20 is connected to an alarm via a controller. When the axial transmission rod 9 moves along the axis toward the side where the sheath 11 is located, the axial movement rod can drive the compression piston 14 to move. The compression piston 14 compresses hydraulic oil, which can apply force to the extrusion piston 15. The extrusion piston 15 can move axially along the extrusion channel 13 and then drive the support rod 16 to move. The support rod 16 can act on the lever 18 through the sleeve 17 to deflect it. After the lever 18 deflects, the lever 18 pulls the tension sensor 20 at its end to actuate. The tension sensor 20 is connected to the alarm through the controller, and the alarm will sound an alarm after receiving the signal. By using the lever 18, this invention can make the force transmission of the tension sensor 20 more sensitive and the transmission more stable. In the device of this invention, the force transmission is carried out by hydraulic pressure, which can avoid the problem of damage to the sensing element caused by the axial movement rod directly contacting the sensing element.

[0030] In this embodiment, a nut 21 is connected to the end of lever 18 away from the tension sensor 20, and the nut 21 is threadedly connected to lever 18. By setting the nut 21, the outer limit position of sleeve 17 can be limited, preventing sleeve 17 from coming off. An elastic recovery device 22 is connected between transmission assembly 7 and end plate 8, which can be used to reset axial transmission rod 9 and also to reset the position of rotating fan 5, preventing its permanent displacement.

[0031] In this embodiment, a first flange 23 is connected to the housing 1 at one end of the water inlet channel 2, and a water outlet channel is fixedly connected to the end of the housing 1 away from the water inlet channel 2. The water outlet channel is perpendicular to and connected to the water inlet channel 2, and a second flange 25 is connected to the outer end of the water outlet channel. By setting the first flange 23 and the second flange 25, it is convenient to connect the pipes.

[0032] In this embodiment, a step 26 is provided inside the opening of the water inlet channel 2, and a fixing ring 27 is installed inside the step 26. Several guide vanes 28 are evenly distributed along the circumference of the fixing ring 27 on the inner side of the fixing ring 27. By setting the guide vanes 28, the water flow can be guided before passing through the rotating fan 5, so as to avoid the problem of uneven water flow through the rotating fan 5 and the problem of the rotating fan 5 moving around, which can improve the life of the device.

[0033] In this embodiment, a drain port 29 is provided on the housing 1. A screw 30 is threaded into the drain port 29. The drain port 29 is located between the fixing ring 27 and the rotating fan 5. By providing the drain port 29, it is convenient to discharge impurities or sewage inside the housing 1 when cleaning the inside of the housing 1, so as to facilitate cleaning and maintenance of the internal structure of the housing 1, reduce the possibility of corrosion, and also make the transmission accuracy of the internal structure higher.

[0034] In this embodiment, the transmission assembly 7 includes a main body formed by a horizontal tube 31 and a vertical tube 32 connected vertically. A first bevel gear 33 is provided inside the horizontal tube 31. The rotating shaft 4 passes through the horizontal tube 31 coaxially and is connected to the first bevel gear 33. A second bevel gear 34 is provided inside the vertical tube 32. The transmission shaft 6 passes through the vertical tube 32 coaxially and is connected to the second bevel gear 34. The first bevel gear 33 and the second bevel gear 34 mesh. The transmission is more stable by setting bevel gears for transmission.

[0035] In this embodiment, a pressure plate 35 is slidably disposed on the outer side of the vertical pipe 32. The pressure plate 35 is connected to the instrument 37 via a damping spring 36, which is sleeved on the outer side of the vertical pipe 32. When the rotating fan 5 moves axially, the part of the rotating fan 5 extending from the water inlet channel 2 is located above the counting channel 3. The rotation of the rotating fan 5 can cause disturbance to the water in the counting channel 3, which not only allows the pressure plate 35 to move axially to press the instrument 37, but also reduces the possibility of the instrument 37 itself deflecting. Furthermore, the damping spring 36 can buffer the disturbance of the water flow, preventing the instrument 37 from becoming loose under the disturbance of the water flow.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An instrument deflection detection device, characterized in that, The device includes a housing (1), with a horizontal water inlet channel (2) and a vertical counting channel (3) formed on the inner side of the housing (1). A rotating shaft (4) is coaxially arranged in the water inlet channel (2), and the rotating shaft (4) is connected to a rotating fan (5). The rotating fan (5) is located on one side of the counting channel (3). A transmission shaft (6) is coaxially arranged in the counting channel (3), and the transmission shaft (6) is connected to the transmission gear set of the instrument (37). The rotating shaft (4) is connected to the transmission shaft (6) through a transmission assembly (7). An end plate (8) is sealed and installed inside the housing (1). An axial transmission rod (9) is fixed on the outer side of the transmission assembly (7). The axial transmission rod (9) is coaxially arranged with the rotating shaft (4). After the axial transmission rod (9) passes through the end plate (8), it is connected to a sensing assembly (10). The sensing assembly (10) is connected to an alarm, which is used to alarm when the axial transmission rod (9) moves axially. The sensing component (10) includes a sheath (11) fixed to an end plate (8). A compression channel (12) and a squeezing channel (13) are formed within the sheath (11) with their ends perpendicularly connected. A compression piston (14) is sealed within the compression channel (12). The compression piston (14) is fixedly connected to an axial transmission rod (9). The sealed space formed by the compression piston (14) and the squeezing piston (15) is filled with hydraulic oil. A squeezing piston (15) is sealed within the squeezing channel (13). The compression piston (15) is connected to the support rod (16), the support rod (16) is fixedly connected to the sleeve (17), the sleeve (17) is slidably sleeved on the outside of a lever (18), the middle part of the lever (18) is hinged to a support (19), the end of the lever (18) away from the sleeve (17) is hinged to the output end of the tension sensor (20), the height of the tension sensor (20) is less than the height of the support (19), and the tension sensor (20) is connected to the alarm through a controller.

2. The instrument deflection detection device according to claim 1, characterized in that, The lever (18) is connected to a nut (21) at the end away from the tension sensor (20), and the nut (21) is threadedly connected to the lever (18).

3. The instrument deflection detection device according to claim 2, characterized in that, An elastic recovery device (22) is connected between the transmission assembly (7) and the end plate (8).

4. The instrument deflection detection device according to claim 1, characterized in that, A first flange (23) is connected to the housing (1) at one end of the water inlet channel (2). A water outlet channel is fixedly connected to the end of the housing (1) away from the water inlet channel (2). The water outlet channel is perpendicular to and connected to the water inlet channel (2). A second flange (25) is connected to the outer end of the water outlet channel.

5. The instrument deflection detection device according to claim 1, characterized in that, The water inlet channel (2) has a step (26) inside the opening, and a fixing ring (27) is installed inside the step (26). Several guide vanes (28) are evenly distributed along the circumference of the fixing ring (27) on the inner side of the fixing ring (27).

6. The instrument deflection detection device according to claim 1, characterized in that, The housing (1) has a drain port (29) with a screw (30) threaded inside. The drain port (29) is located between the fixing ring (27) and the rotating fan (5).

7. An instrument deflection detection device according to any one of claims 1-6, characterized in that, The transmission assembly (7) includes a main body formed by a horizontal tube (31) and a vertical tube (32) connected vertically. A first bevel gear (33) is provided inside the horizontal tube (31). The rotating shaft (4) passes through the horizontal tube (31) coaxially and is connected to the first bevel gear (33). A second bevel gear (34) is provided inside the vertical tube (32). The transmission shaft (6) passes through the vertical tube (32) coaxially and is connected to the second bevel gear (34). The first bevel gear (33) meshes with the second bevel gear (34).

8. The instrument deflection detection device according to claim 7, characterized in that, A pressure plate (35) is slidably disposed on the outside of the vertical tube (32). The pressure plate (35) is connected to the instrument (37) through a damping spring (36). The damping spring (36) is sleeved on the outside of the vertical tube (32).

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