Mechanical-electronic dual detection gate position meter

Abstract

A mechanical and electronic dual detection gate position meter, comprising a main shell and a mechanical detection module and an electronic detection module inside the main shell; the electronic detection module comprises a drive shaft rotatably arranged in the main shell and capable of being in transmission connection with a drive mechanism for driving the gate to lift and fall, an encoder capable of detecting the number of rotations of the drive shaft is in transmission connection with the drive shaft, and the electronic detection of the opening amount of the gate can be realized through the encoder; the mechanical detection module comprises a screw rod rotatably arranged in the main shell and in transmission connection with the drive shaft, a pointing block capable of being driven to move by the screw rod is arranged on the screw rod, a scale ruler corresponding to the movement path of the pointing block is arranged in the main shell, and the mechanical detection of the opening amount of the gate can be realized through the cooperation of the pointing block and the scale ruler, on the one hand, the on-site observation is facilitated, and on the other hand, even if the electronic detection module is out of alignment or damaged due to a high-humidity environment, the opening amount of the gate can still be accurately controlled through the observation of the pointing scale of the pointing block.

Description

Technical Field

[0001] This utility model relates to the field of gate position gauge technology, specifically a mechanical and electronic dual-detection gate position gauge. Background Technology

[0002] In water conservancy projects, gate position gauges are typically used to detect the opening amount of gates. By controlling the opening amount of the gates, the flow rate and velocity of water can be controlled. Current gate position gauges usually adopt electronic structures, such as common photoelectric or contact encoder structures. They detect the amount of rotation of the mechanical structure that controls the gate opening. However, because this type of electronic detection structure is usually connected to remote equipment, it is impossible to accurately observe the gate opening amount on-site. Moreover, if the electronic detection structure is damaged or becomes inaccurate due to a high-humidity working environment, the gate opening amount cannot be manually intervened. Utility Model Content

[0003] To address the technical problems existing in the background art, this utility model provides a mechanical and electronic dual detection gate position gauge.

[0004] The technical solution of this utility model is as follows: A mechanical and electronic dual-detection gate position gauge includes a main housing and an internal mechanical detection module and an electronic detection module. The main housing can fix the gate position gauge (the aforementioned mechanical and electronic dual-detection gate position gauge) at the gate position. Both the mechanical detection module and the electronic detection module can detect the opening and closing of the gate.

[0005] As the core technical concept of this utility model, the electronic detection module includes a drive shaft rotatably disposed inside the main housing and capable of being driven and connected to a drive mechanism for driving the gate to rise and fall. An encoder capable of detecting the number of rotations is driven and connected to the drive shaft. The encoder can convert the rotation of the drive mechanism into an electrical signal, thereby realizing the electronic detection of the gate opening amount. The mechanical detection module includes a screw rotatably disposed inside the main housing and driven and connected to the drive shaft. A pointing block that can be driven and moved by the screw is provided on the screw. A scale is provided inside the main housing corresponding to the movement path of the pointing block. The screw can convert the rotation of the drive shaft into the lateral movement of the pointing block. Combined with the scale, the mechanical detection of the gate opening amount can be realized. On the one hand, it is convenient to observe on site and judge whether there is an inaccuracy problem of the electronic detection module by combining the pointing scale of the pointing block. On the other hand, even if the electronic detection module is inaccurate or damaged due to high humidity environment, the gate opening amount can still be accurately controlled by observing the pointing scale of the pointing block on site.

[0006] As described above, in a mechanical and electronic dual-detection gate position gauge, the driving mechanism adopts a driving screw, and the gate is helically connected to the driving screw. The rotation of the driving screw can drive the gate to open or close. In order to more accurately convert the rotation of the driving screw into the rotation of the driving shaft, as a preferred embodiment, the driving shaft is provided with a gear in the middle that can mesh and drive the driving screw and drive the driving shaft to rotate.

[0007] As a further preferred embodiment, in order to reduce the impact of high humidity environment on the encoder and ensure the service life of the encoder, the main housing includes an intermediate housing and a first auxiliary housing on one side. The encoder is located inside the first auxiliary housing on the side wall of the intermediate housing, and the transmission connection part passes through the intermediate housing and is connected to the drive shaft for transmission.

[0008] As described above, in order to reduce the impact of high humidity environment on the drive shaft and screw transmission connection structure and ensure that the rotation of the drive shaft can smoothly drive the screw to rotate, the main housing also includes a second sub-housing on the side of the intermediate housing opposite to the first sub-housing. The screw is located inside the intermediate housing, and one end of the screw extends into the second sub-housing and is connected to the drive shaft by a transmission belt.

[0009] As a preferred embodiment, in order to further ensure that the rotation of the drive shaft can smoothly drive the rotation of the screw, the second housing is also provided with a tensioning block that can adjust the tension of the transmission belt.

[0010] As described above, in a preferred embodiment of the mechanical and electronic dual-detection gate position gauge, a proximity switch is provided inside the main housing at both ends of the moving path of the pointing block. The proximity switch can communicate with the drive motor that controls the opening of the gate. When the pointing block moves to the position of the proximity switch, the drive motor can be controlled to close, so as to avoid the gate from opening or closing excessively.

[0011] As a further preferred embodiment, to further prevent the gate from being over-opened when the mechanical detection module and the electronic detection module are inaccurate, the main housing is also provided with a limit switch that can contact and cooperate with the gate. The limit switch can communicate with the drive motor that controls the gate opening. When the gate is opened to a certain extent, it can push the limit switch to operate, thereby controlling the drive motor to close and preventing the gate from being over-opened.

[0012] The beneficial effects of this utility model are as follows: This utility model is a mechanical and electronic dual detection gate position gauge. Through the encoder of the electronic detection module, the rotation of the drive mechanism can be converted into an electrical signal, thereby realizing the electronic detection of the gate opening amount. Through the screw of the mechanical detection module, the rotation of the drive shaft can be converted into the lateral movement of the pointer block. Combined with the scale, the gate opening amount can be mechanically detected. On the one hand, it is convenient to observe on site and judge whether there is a problem with the inaccuracy of the electronic detection module by combining the pointing scale of the pointer block. On the other hand, even if the electronic detection module is inaccurate or damaged due to high humidity environment, the gate opening amount can still be accurately controlled by observing the pointing scale of the pointer block on site. Attached Figure Description

[0013] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the gate position gauge in the embodiment; Figure 2 This is a schematic diagram of the internal structure of the gate position gauge in the embodiment; Figure 3 This is a schematic diagram of the electronic detection module in the embodiment; Figure 4 This is a schematic diagram of the mechanical detection module in the embodiment; Figure 5 This is a schematic diagram of the transmission module in the embodiment; The components represented by the various reference numerals in the diagram are: 1. Main housing; 11. Intermediate housing; 12. First auxiliary housing; 13. Second auxiliary housing; 2. Electronic detection module; 21. Drive shaft; 22. Gear; 23. Encoder; 24. Connecting block; 3. Mechanical detection module; 31. Lead screw; 32. Pointing block; 321. Moving block; 322. Pointer; 33. Scale; 34. Bracket; 35. Proximity switch; 4. Transmission module; 41. Main pulley; 42. Auxiliary pulley; 43. Transmission belt; 44. Tensioning block; 5. Limit switch. Detailed Implementation

[0015] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0016] Example This embodiment provides a mechanical and electronic dual-detection gate positioner; see [link / reference]. Figure 1 and Figure 2The main housing 1 and its internal mechanical detection module 3 and electronic detection module 2 are included. The main housing 1 can fix the gate position gauge at the gate position. Both the mechanical detection module 3 and the electronic detection module 2 can detect the opening and closing of the gate. The structure of the gate position gauge will be described in detail below with reference to the attached drawings.

[0017] In this embodiment, combined with Figure 3 The electronic detection module 2 includes a drive shaft 21 rotatably disposed inside the main housing 1 and capable of being driven to connect with the drive mechanism for driving the gate to lift. An encoder 23 capable of detecting the number of rotations of the drive shaft 21 is driven to the drive shaft 21. The action amount of the drive mechanism can be converted into the rotation amount of the drive shaft 21. The encoder 23 can convert the rotation amount of the drive mechanism into an electrical signal, thereby realizing the electronic detection of the gate opening amount.

[0018] As a common gate opening and closing control structure, the drive mechanism adopts a drive screw. The gate is helically connected to the drive screw. The drive screw is driven to rotate by the drive motor, which can drive the gate to open or close. In order to more accurately convert the rotation of the drive screw into the rotation of the drive shaft 21, as a preferred embodiment, the drive shaft 21 is provided with a gear 22 in the middle, one side of which extends out of the main housing 1 and can mesh with the drive screw to drive the drive shaft 21 to rotate.

[0019] As a further preferred embodiment, in order to reduce the impact of high humidity environment on encoder 23 and ensure the service life of encoder 23, the main housing 1 includes an intermediate housing 11 and a first auxiliary housing 12 on one side. The drive shaft 21 is disposed inside the main housing 1, and the encoder 23 is disposed inside the first auxiliary housing 12 on the side wall of the intermediate housing 11. Its transmission connection part passes through the intermediate housing 11 and is connected to the drive shaft 21 in a transmission connection.

[0020] Preferably, to facilitate the transmission cooperation between the drive shaft 21 and the encoder 23, the end of the drive shaft 21 is connected to the encoder 23 via a connecting block 24. Specifically, the connecting block 24 is a columnar structure, and the end of the drive shaft 21 and the rotating shaft of the encoder 23 are respectively threaded to both ends of the connecting block 24.

[0021] In this embodiment, combined with Figure 4The mechanical detection module 3 includes a screw 31 rotatably disposed inside the main housing 1 and connected to the drive shaft 21 via a transmission module 4. The screw 31 is provided with a guide block 32 that can be driven to move by it. The main housing 1 is also provided with a scale 33 corresponding to the movement path of the guide block 32. The screw 31 can convert the rotation of the drive shaft 21 into the lateral movement of the guide block 32. Combined with the scale 33, the mechanical detection of the gate opening amount can be realized. On the one hand, it is convenient to observe on site and judge whether the electronic detection module 2 is inaccurate by combining the pointing scale of the guide block 32. On the other hand, even if the electronic detection module 2 is inaccurate or damaged due to high humidity environment, the gate opening amount can still be accurately controlled by observing the pointing scale of the guide block 32 on site.

[0022] As a preferred embodiment of this example, in order to ensure the accuracy of the readings from the scale 33, the pointing block 32 includes a moving block 321 that is helically connected to the screw 31 and can be driven to move by it. A pointer 322 is fixed on one side of the moving block 321, and the scale 33 is located on one side of the pointer 322 and is set along the moving path of the pointer 322.

[0023] As a further preferred embodiment, the main housing 1 is provided with a strip-shaped bracket 34 along the moving direction of the pointing block 32. At both ends of the bracket 34, and at the positions corresponding to the two ends of the moving path of the pointing block 32, a proximity switch 35 is provided. The proximity switch 35 can communicate with the drive motor that controls the opening of the gate. When the pointing block 32 moves to the position of the proximity switch 35, the drive motor can be controlled to close, so as to avoid the gate from opening or closing excessively.

[0024] In this embodiment, combined with Figure 5 Regarding the structure of the transmission module 4, it includes a main pulley 41 located at one end of the drive shaft 21 and a secondary pulley 42 located at one end of the screw 31, with a transmission belt 43 provided between the main pulley 41 and the secondary pulley 42.

[0025] As a preferred embodiment of this invention, in order to reduce the impact of high humidity environment on the transmission connection structure of drive shaft 21 and screw 31, and to ensure that the rotation of drive shaft 21 can smoothly drive screw 31 to rotate, the main housing 1 also includes a second sub-housing 13 on the side of intermediate housing 11 opposite to the first sub-housing 12. The screw 31 is located inside intermediate housing 11, and one end of the screw 31 and the drive shaft 21 both extend into the second sub-housing 13 and are respectively connected to main pulley 41 and auxiliary pulley 42. The drive shaft 21 and screw 31 are then connected by transmission belt 43, so that the entire transmission module 4 can be protected inside the second sub-housing 13.

[0026] As a further preferred embodiment, in order to further ensure that the rotation of the drive shaft 21 can smoothly drive the screw 31 to rotate, the second sub-housing 13 is also provided with a tensioning block 44 that can adjust the tension of the transmission belt 43.

[0027] Specifically, regarding the arrangement of the tensioning block 44, its middle part is connected to the side wall of the intermediate housing 11 by a connecting screw and can rotate around the connecting screw. One end of the tensioning block 44 contacts the outside of the transmission belt 43, and the other end is provided with a fastening screw. An arc-shaped opening is provided on the side wall of the intermediate housing 11 corresponding to the rotation path of the fastening screw. By cooperating with the arc-shaped opening, the tensioning block 44 can adjust the amount of pressure on the transmission belt 43 and fix its own position.

[0028] In this embodiment, as a preferred implementation, to further prevent the gate from being over-opened when the mechanical detection module 3 and the electronic detection module 2 are inaccurate, the main housing 1 is also provided with a limit switch 5 that can contact and cooperate with the gate. The trigger end of the limit switch 5 extends out of the main housing 1. The limit switch 5 can communicate with the drive motor that controls the opening of the gate. When the gate is opened to a certain extent, it can push the limit switch 5 to act, thereby controlling the drive motor to close and preventing the gate from being over-opened.

Claims

1. A mechanical and electronic dual-detection gate position gauge, characterized in that, It includes the main housing (1) and its internal mechanical detection module (3) and electronic detection module (2); The electronic detection module (2) includes a drive shaft (21) rotatably disposed inside the main housing (1) and capable of being connected to the drive mechanism for driving the gate to rise and fall. An encoder (23) capable of detecting the number of rotations is connected to the drive shaft (21). The mechanical detection module (3) includes a screw (31) rotatably disposed inside the main housing (1) and connected to the drive shaft (21) for transmission. A guide block (32) is provided on the screw, which can be driven to move by the guide block (32). A scale (33) is provided inside the main housing (1) corresponding to the movement path of the guide block (32).

2. The mechanical and electronic dual-detection gate position gauge according to claim 1, characterized in that, The driving mechanism is a driving screw, and the middle part of the driving shaft (21) is provided with a gear (22) that can mesh and transmit with the driving screw and drive the driving shaft (21) to rotate.

3. The mechanical and electronic dual-detection gate position gauge according to claim 1, characterized in that, The main housing (1) includes an intermediate housing (11) and a first sub-housing (12) on one side. The encoder (23) is located on the side wall of the intermediate housing (11) inside the first sub-housing (12), and the transmission connection part passes through the intermediate housing (11) and is connected to the drive shaft (21) for transmission.

4. The mechanical and electronic dual-detection gate position gauge according to claim 2, characterized in that, The main housing (1) also includes a second sub-housing (13) on the side of the intermediate housing (11) facing away from the first sub-housing (12). The screw (31) is located inside the intermediate housing (11), and one end of it extends into the second sub-housing (13) and is connected to the drive shaft (21) via a transmission belt (43).

5. The mechanical and electronic dual-detection gate position gauge according to claim 4, characterized in that, The second sub-shell (13) is also provided with a tensioning block (44) that can adjust the tension of the transmission belt (43).

6. A mechanical and electronic dual-detection gate position gauge according to any one of claims 1-5, characterized in that, Inside the main housing (1), proximity switches (35) are provided at both ends of the moving path of the pointing block (32).

7. A mechanical and electronic dual-detection gate position gauge according to any one of claims 1-5, characterized in that, The main housing (1) is also provided with a limit switch (5) that can contact and cooperate with the gate.

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