CN209278759U - Sensor pre-pressing structure - Google Patents
Sensor pre-pressing structure Download PDFInfo
- Publication number
- CN209278759U CN209278759U CN201920020498.6U CN201920020498U CN209278759U CN 209278759 U CN209278759 U CN 209278759U CN 201920020498 U CN201920020498 U CN 201920020498U CN 209278759 U CN209278759 U CN 209278759U
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- sensor
- fixing element
- upper fixing
- fixing piece
- pressing structure
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Abstract
The utility model discloses a kind of sensor pre-pressing structures, including sensor, upper fixing element and lower fixing piece, sensor is formed as tubular structure, upper fixing element is formed as the tubular structure for having top, it is provided with centre bore at the top of upper fixing element, lower fixing piece is threadedly coupled with upper fixing element, and sensor is installed between upper fixing element and lower fixing piece, the upper surface of sensor is compressed with upper fixing element, and the bottom surface of sensor and lower fixing piece compress.In order to overcome column rod piece caused by the sensor pre-pressing structure used in prior art etc. to need guiding through the case where sensor is not available, the utility model provides a kind of sensor pre-pressing structure, its structure is simple, it is easy to assembly, it efficiently solves the problems, such as that tradition pre-tightens sensor and is unable to satisfy under the testing requirement that column rod piece passes through sensor, extends the use scope of sensor pre-pressing structure.
Description
Technical field
The utility model relates to sensor manufacture and use field more particularly to a kind of sensor pre-pressing structures.
Background technique
Due to sensing element, some kinds of sensor (such as piezoelectric force transducer) does not have in use
It is not a linear relationship between the output signal and input physical quantity of sensor, often in the first of curve when applying pretightning force
Beginning section has a certain range of non-linear section, this sensitivity coefficient that will lead to sensor is not a constant, causes to test number
According to inaccuracy, or even it is not available.To solve the above problems, each sensor producer mostly uses and is equipped with pre-pressing structure to sensor,
Pretightning force is applied to sensor, and the size of pretightning force is made to be more than non-linear partial, is made between output signal and input physical quantity
Relationship enter the range of linearity, then linearity range is demarcated, provides sensitivity coefficient, it is whole to be used as finished product.
The application of pretightning force, conventional method are respectively to increase the quality for having centre bore in the upper and lower end face of sensor
Block is inserted into bolt in centre bore, by tightening bolt presses mass block, to pre-tighten to sensor.Using such side
The sensor that method pre-tightens is easy to use in the physical quantity tested between two faces, but for there is column rod piece such as bolt etc. to need guiding through
The case where sensor, is not available then, limits the use scope of sensor.
How above-mentioned technical problem is solved into the striving direction of those skilled in the art.
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of sensor pre-pressing structure.
To achieve the goals above, the utility model provides a kind of sensor pre-pressing structure, including sensor, sensor shape
As tubular structure, sensor pre-pressing structure further includes upper fixing element and lower fixing piece, and upper fixing element is formed as the cylinder for having top
Shape structure, upper fixing element top are provided with centre bore, and sensor is mounted between upper fixing element and lower fixing piece with being compacted.
Optionally, fixing piece is formed as the tubular structure for having bottom, and upper fixing element is threadedly coupled with lower fixing piece, sensor
The upper surface of it is tight with the press of upper fixing element cylinder, the bottom surface of sensor and lower fixing piece cylinder base pressure are tight.
Optionally, it is provided with external screw thread on the drum outer wall of upper fixing element, is provided with internal screw thread on the cylinder inner wall of lower fixing piece,
External screw thread and screw-internal thread fit.
Optionally, it is provided with internal screw thread on the cylinder inner wall of upper fixing element, is provided with external screw thread on the drum outer wall of lower fixing piece,
External screw thread and screw-internal thread fit.
Optionally, upper fixing element, sensor and lower fixing piece three coaxial arrangement.
Optionally, the cable hole for installing sensor wire is provided on lower fixing piece.
Optionally, locating slot is provided on lower fixing piece, covers disposed on sensor is equipped with for circumferentially positioned positioning protrusion, fixed
Position protrusion insertion locating slot installation.
Optionally, the cable hole for installing sensor wire is provided on upper fixing element.
Optionally, locating slot is provided on upper fixing element, covers disposed on sensor is equipped with for circumferentially positioned positioning protrusion, fixed
Position protrusion insertion locating slot installation.
The utility model has the beneficial effects that:
In order to overcome column rod piece caused by the sensor pre-pressing structure used in prior art etc. need guiding through sensor without
The case where method uses, the utility model provides a kind of sensor pre-pressing structure, and structure is simple, easy to assembly, efficiently solves
It is traditional to pre-tighten the problem of sensor is unable to satisfy under the testing requirement that column rod piece passes through sensor, it is pre- to extend sensor
The use scope of locking structure.
Detailed description of the invention
Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of sensor pre-pressing structure described in the utility model；
Fig. 2 is the structural schematic diagram of upper fixing element described in the utility model；
Fig. 3 is the structural schematic diagram of specific embodiment described in the utility model.
Description of symbols
1- upper fixing element, 2- sensor, fixing piece under 3-, 4- centre bore A, 5- sensor wire, 6- cable hole, the center 7-
Hole, the upper connected piece of 8-, connected piece under 9-, 10- connection bolt, 11- attaching nut.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, inside and outside " is usual
It is based on the orientation or positional relationship shown in the drawings and is defined, specifically can refer to page shown in FIG. 1 and combine
The corresponding positional relationship of components in the other drawings.In the following description when referring to the accompanying drawings, unless otherwise indicated, in different attached drawings
Same numbers indicate the same or similar element.
As depicted in figs. 1 and 2, the utility model relates to a kind of sensor pre-pressing structure, including sensor 2, upper fixation
Part 1 and lower fixing piece 3.
Sensor 2 is formed as tubular structure, and further, sensor 2 is formed as stepped cylinder structure, sensor 2
Upper end section be path, sensor 2 lower end section be major diameter, upper end section and lower end section joint be cascaded surface.
Upper fixing element 1 is formed as the tubular structure for having top, is provided with centre bore 7 at the top of upper fixing element 1.
Lower fixing piece 3 is formed as the tubular structure for having bottom, the barrel screw thread of the barrel of upper fixing element 1 and lower fixing piece 3
Connection, setting following two situation of screw thread: one is that external screw thread is arranged on 1 outer tube wall of upper fixing element, in lower fixing piece 3
Internal screw thread is provided on barrel；Secondly being provided on lower 3 outer tube wall of fixing piece for internal screw thread is arranged on 1 inner tube wall of upper fixing element
External screw thread.
Sensor 2 is installed between upper fixing element 1 and lower fixing piece 3, and fixing piece, sensor 2 and lower 3 three of fixing piece are same
Axis setting.The upper end section of sensor 2 is cooperated by centre bore 7, the outer diameter and 7 bore clearance of centre bore of 2 upper end section of sensor, rotation
Turn to turn upper fixing element 1 or lower fixing piece 3, keeps the cascaded surface of sensor 2 and upper fixing element 1 press tight, the bottom surface of sensor 2
It is tight with 3 base pressures of lower fixing piece, achieve the purpose that sensor 2 pre-tightens.
For the ease of the cabling of sensor wire 5, cable hole 6, cabling are set on 1 up or down fixing piece 3 of upper fixing element
Hole 6 is arranged on the barrel of upper fixing element 1 or lower fixing piece 3.
Sensor 2 rotates with when tightening between upper fixing element 1 and lower fixing piece 3 in order to prevent, upper fixing element 1 or lower solid
Determine that locating slot is arranged on part 3, the corresponding position of sensor 2 is used for circumferentially positioned positioning protrusion, and positioning protrusion is embedded in locating slot
Installation.
Locating slot and cable hole 6 should be the same as on upper fixing elements 1 or lower fixing piece 3.
Specific embodiment of the utility model is as follows:
It is a through-hole at the central axes of sensor 2, lower fixing piece 3 is provided with centre bore A4, the installation of 2 pre-tightening mechanism of sensor
Between upper connected piece 8 and lower connected piece 9, connection bolt 10 sequentially passes through the center of lower connected piece 9, lower fixing piece 3
Hole A4, the through-hole of sensor 2, upper fixing element 1 centre bore 7 and upper connected piece 8, connection bolt 10 pass through after use attaching nut
11 fastenings, can measure the power between connected piece 8 and lower connected piece 9.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above
Detail in above embodiment can be to the skill of the utility model in the range of the technology design of the utility model
Art scheme carries out a variety of simple variants, these simple variants belong to the protection scope of the utility model.
It is further to note that specific technical features described in the above specific embodiments, in not lance
It in the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the utility model is to each
No further explanation will be given for the possible combination of kind.
In addition, any combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed
The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.
Claims (9)
1. a kind of sensor pre-pressing structure, including sensor, sensor are formed as tubular structure, it is characterised in that: sensor is pre-
Locking structure further includes upper fixing element and lower fixing piece, and upper fixing element is formed as the tubular structure for having top, sets at the top of upper fixing element
It is equipped with centre bore, sensor is mounted between upper fixing element and lower fixing piece with being compacted.
2. a kind of sensor pre-pressing structure according to claim 1, it is characterised in that: lower fixing piece is formed as having bottom
Tubular structure, upper fixing element are threadedly coupled with lower fixing piece, and the upper surface of sensor and the press of upper fixing element cylinder are tight, the bottom of sensor
Face and lower fixing piece cylinder base pressure are tight.
3. a kind of sensor pre-pressing structure according to claim 2, it is characterised in that: be arranged on the drum outer wall of upper fixing element
There is external screw thread, is provided with internal screw thread, external screw thread and screw-internal thread fit on the cylinder inner wall of lower fixing piece.
4. a kind of sensor pre-pressing structure according to claim 2, it is characterised in that: be arranged on the cylinder inner wall of upper fixing element
There is internal screw thread, is provided with external screw thread, external screw thread and screw-internal thread fit on the drum outer wall of lower fixing piece.
5. a kind of sensor pre-pressing structure according to claim 1, it is characterised in that: upper fixing element, sensor and lower solid
Determine part three coaxial arrangement.
6. a kind of sensor pre-pressing structure according to claim 1, it is characterised in that: be provided on lower fixing piece for pacifying
Fill the cable hole of sensor wire.
7. a kind of sensor pre-pressing structure according to claim 6, it is characterised in that: be provided with positioning on lower fixing piece
Slot, covers disposed on sensor are equipped with for circumferentially positioned positioning protrusion, and positioning protrusion is embedded in locating slot installation.
8. a kind of sensor pre-pressing structure according to claim 1, it is characterised in that: be provided on upper fixing element for pacifying
Fill the cable hole of sensor wire.
9. a kind of sensor pre-pressing structure according to claim 8, it is characterised in that: be provided with positioning on upper fixing element
Slot, covers disposed on sensor are equipped with for circumferentially positioned positioning protrusion, and positioning protrusion is embedded in locating slot installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020498.6U CN209278759U (en) | 2019-01-07 | 2019-01-07 | Sensor pre-pressing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920020498.6U CN209278759U (en) | 2019-01-07 | 2019-01-07 | Sensor pre-pressing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278759U true CN209278759U (en) | 2019-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920020498.6U Active CN209278759U (en) | 2019-01-07 | 2019-01-07 | Sensor pre-pressing structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN209278759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488853A (en) * | 2019-01-07 | 2019-03-19 | 中国工程物理研究院总体工程研究所 | Sensor pre-pressing structure |
-
2019
- 2019-01-07 CN CN201920020498.6U patent/CN209278759U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488853A (en) * | 2019-01-07 | 2019-03-19 | 中国工程物理研究院总体工程研究所 | Sensor pre-pressing structure |
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