CN214427333U - Online moisture meter contact structure - Google Patents
Online moisture meter contact structure Download PDFInfo
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- CN214427333U CN214427333U CN202120450544.3U CN202120450544U CN214427333U CN 214427333 U CN214427333 U CN 214427333U CN 202120450544 U CN202120450544 U CN 202120450544U CN 214427333 U CN214427333 U CN 214427333U
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Abstract
The utility model belongs to the technical field of cereal moisture detector technique and specifically relates to an online moisture meter contact structure, including rotation portion, fixed part, rotation portion includes the electrode post, the electrode post is cylindrical, the assembly is established on the fixed column to coil spring main part cover, each integrated into one piece of coil spring main part upper end free end and lower extreme free end has an elasticity free end of outside extension, under the natural state, two the elasticity free end is the V-arrangement and distributes, rotation portion with when the fixed part is connected, two elasticity free end elasticity cross arrangement, the electrode post clamp is established between the open end of two elasticity free ends of elasticity cross arrangement. This device is through face of cylinder and the hidden contact of face of cylinder, and area of contact is little wearing and tearing, and difficult oxidation, the foreign matter is difficult to get into the contact surface, and life is longer, and high accuracy resistance measurement is more accurate, stable.
Description
Technical Field
The utility model relates to a cereal moisture detector technical field especially relates to an online moisture meter contact structure.
Background
When cereal storage, need detect the inside moisture content of cereal, judge the inside moisture content of cereal through the moisture content detector, judge whether be fit for the storage, the moisture content detector utilizes the mode that resistance produced the size to detect, the principle that the moisture content detector detected is: drive two rolling wheels through the motor and rotate, put cereal between two rolling wheels, grind down cereal through rolling wheel, the inside moisture content of cereal is extruded, and the circuit between two rolling wheels switches on under the moisture content effect, and the different resistance variation in size of moisture content judges the inside moisture content of cereal through this kind of mode.
Because the detection method of the online grain moisture meter is a resistance type, the rotation of the electrode is required to acquire the resistance value and transmit the resistance value to the circuit board for analysis in real time, and the contact structure is a necessary component between the electrode and the circuit board.
The contact consists of two parts, namely a fixed part and a rotating part, and the rotating part is required to be normally conducted with the fixed part when rotating, so that high-precision resistor transmission is realized, poor contact cannot occur, and the phenomenon of no contact cannot occur;
referring to fig. 1, in the prior art, the fixed part is a spring plate, the rotating part is a plane, the fixed part and the rotating part are in plane contact, the contact area is large, the abrasion is large, the oxidation is easy, foreign matters are easy to enter, the electric conduction is affected, the rotating part is subjected to axial force relative to the fixed part, and the fixed part is subjected to radial force relative to the rotating part, so that the two parts are different in force direction, and the contact performance is general.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of poor connection effect between the electrodes of the grain moisture detector and the fixed part of the circuit board in the prior art, and providing an online moisture meter contact structure.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an online moisture meter contact structure, includes rotation portion, fixed part, rotation portion includes the electrode post, the electrode post is cylindrical, the fixed part includes fixed column, elastic connection portion includes the coil spring main part, the assembly is established on the fixed column to coil spring main part cover, each integrated into one piece of coil spring main part upper end free end and lower extreme free end has an elasticity free end of outside extension, under the natural state, two the elasticity free end is V-arrangement and distributes, rotation portion with when the fixed part is connected, two elasticity free end elasticity cross arrangement, the electrode post presss from both sides and establishes between the open end of two elasticity free ends of elasticity cross arrangement.
The axis of the spiral spring main body is parallel to the axis of the electrode column, and the elastic clamping force of the two elastic free ends to the electrode column is parallel to the cross section of the electrode column.
The electrode column is provided with two annular grooves, and the two elastic free ends are respectively arranged in the two annular grooves.
The fixed part comprises two gaskets, the diameter of each gasket is larger than that of each fixed column, the two gaskets are arranged at two ends of each fixed column respectively, and the gaskets and the fixed columns are connected together through connecting screw rods.
The height of the spiral spring main body is equal to that of the fixing column.
The utility model provides a pair of online moisture meter contact structure, beneficial effect lies in: this device is through face of cylinder and the hidden contact of face of cylinder, and area of contact is little wearing and tearing, and difficult oxidation, the foreign matter is difficult to get into the contact surface, and life is longer, and this contact, fixed part and rotation part are even for the axial force, and the contact nature is better, and high accuracy resistance measurement is more accurate, stable.
Drawings
FIG. 1 is a schematic diagram of a prior art electrical shock structure;
FIG. 2 is a schematic view of the three-dimensional structure of the rotating part and the fixing part of the present invention when they are connected;
FIG. 3 is a schematic view of the structure of the rotating part and the fixing part of the present invention when they are connected;
FIG. 4 is a schematic structural view of the elastic free end of the present invention after being elastically bent and deformed;
fig. 5 is a structural schematic diagram of the elastic free end of the present invention in a natural unstressed state.
In the figure: the electrode comprises a spiral spring main body 1, a fixed column 2, a connecting screw rod 3, a gasket 4, an elastic free end 5, an annular groove 6 and an electrode column 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 2-5, an online moisture meter contact structure, including the rotation portion, the fixed part, the rotation portion includes electrode post 7, electrode post 7 is cylindrical, the fixed part includes fixed column 2, elastic connection portion includes coil spring main part 1, coil spring main part 1 cover is established and is assembled on fixed column 2, each integrated into one piece of coil spring main part 1 upper end free end and lower extreme free end has an elasticity free end 5 that outwards extends, under the natural state, two elasticity free ends 5 are the V-arrangement, when rotation portion is connected with the fixed part, two elasticity free ends 5 elasticity are alternately arranged, electrode post 7 presss from both sides and sets up between the open end of two elasticity free ends 5 that elasticity was alternately arranged.
Referring to fig. 5, the elastic free ends 5 of the elastic connecting portion are naturally distributed in a V-shaped open manner, and referring to fig. 2 and 4 when the rotating portion is connected to the fixing portion, the elastic free ends 5 are distributed in a crossed manner under the action of an external force, so that the elastic free ends 5 generate reverse elasticity, and the electrode column 7 is clamped by the reverse elasticity, thereby ensuring that the elastic connecting portion and the electrode column 7 are kept in elastic contact constantly, and avoiding interruption of transmission signals;
referring to fig. 2-3 as a further preferred solution, the axis of the helical spring body 1 is arranged parallel to the axis of the electrode shaft 7, and the elastic clamping force of the two elastic free ends 5 on the electrode shaft 7 is parallel to the cross section of the electrode shaft 7; the electrode column 7 is provided with two annular grooves 6, and the two elastic free ends 5 are respectively arranged in the two annular grooves 6; make elasticity free end 5 spacing in ring channel 6, this contact, through face of cylinder and the hidden contact of face of cylinder, area of contact is little wearing and tearing, difficult oxidation, and the foreign matter is difficult to get into the contact surface, and life is longer. According to the contact, the fixed part and the rotating part are uniformly axial force, the contact performance is better, and the high-precision resistance measurement is more accurate and stable.
Referring to fig. 2-4, the fixing portion includes two pads 4, the diameter of each pad 4 is larger than that of the fixing column 2, the two pads 4 are respectively disposed at two ends of the fixing column 2, and the pads 4 and the fixing column 2 are connected together through a connecting screw 3; the height of the spiral spring main body 1 is equal to that of the fixing column 2. During the installation, through two gaskets 4 with 1 spacing on fixed column 2 of coil spring main part, avoid coil spring main part 1 to move at 2 axis directions of fixed column in the course of the work, improve device operating stability.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model thereof, the technical solution, concept and design obtained by equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (5)
1. An on-line moisture meter contact structure, which comprises a rotating part and a fixing part and is characterized in that, the rotating part comprises an electrode column (7), the electrode column (7) is cylindrical, the fixed part comprises a fixed column (2) and an elastic connecting part, the elastic connecting part comprises a spiral spring main body (1), the spiral spring main body (1) is sleeved on the fixed column (2), the free end at the upper end and the free end at the lower end of the spiral spring main body (1) are respectively integrally formed with an elastic free end (5) extending outwards, and in a natural state, the two elastic free ends (5) are distributed in a V shape, when the rotating part is connected with the fixed part, the two elastic free ends (5) are elastically crossed, the electrode column (7) is clamped between the open ends of the two elastic free ends (5) which are elastically crossed.
2. An online moisture meter contact structure according to claim 1, characterized in that the axis of the helical spring body (1) is parallel to the axis of the electrode column (7), and the elastic clamping force of the two elastic free ends (5) to the electrode column (7) is parallel to the cross section of the electrode column (7).
3. The contact structure of the online moisture meter as claimed in claim 2, wherein the electrode column (7) is provided with two annular grooves (6), and the two elastic free ends (5) are respectively disposed in the two annular grooves (6).
4. The contact structure of the online moisture meter according to any one of claims 1 to 3, wherein the fixed part comprises two gaskets (4), the diameter of each gasket (4) is larger than that of each fixed column (2), the two gaskets (4) are respectively arranged at two ends of each fixed column (2), and the gaskets (4) and the fixed columns (2) are connected together through connecting screws (3).
5. The online moisture meter contact structure as claimed in claim 4, wherein the height of the spiral spring body (1) is equal to the height of the fixing column (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120450544.3U CN214427333U (en) | 2021-03-02 | 2021-03-02 | Online moisture meter contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120450544.3U CN214427333U (en) | 2021-03-02 | 2021-03-02 | Online moisture meter contact structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214427333U true CN214427333U (en) | 2021-10-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120450544.3U Active CN214427333U (en) | 2021-03-02 | 2021-03-02 | Online moisture meter contact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214427333U (en) |
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2021
- 2021-03-02 CN CN202120450544.3U patent/CN214427333U/en active Active
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