CN210513176U - Sensor fixing device - Google Patents
Sensor fixing device Download PDFInfo
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- CN210513176U CN210513176U CN201921754784.1U CN201921754784U CN210513176U CN 210513176 U CN210513176 U CN 210513176U CN 201921754784 U CN201921754784 U CN 201921754784U CN 210513176 U CN210513176 U CN 210513176U
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- sensor
- fastening nut
- limiting
- hole
- fixing device
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Abstract
The utility model provides a sensor fixing device, a baffle plate comprises a cylindrical limiting part and a limiting piece extending outwards from the bottom of the cylindrical limiting part in the radial direction, and the cylindrical limiting part is provided with an installation through hole; the clamping nut is provided with a limiting flange extending inwards along the radial direction at one end, a limiting hole is formed in the middle of the limiting flange, the blocking piece is arranged at one end with the limiting hole in the clamping nut, and the cylindrical limiting part is embedded into the limiting hole; the fastening nut is used for being fixedly connected with an external sensor base positioned at one end of a fastening nut limiting hole through a baffle and a fixing screw or bolt penetrating through the mounting through hole; the fastening nut is used for being fastened and connected with the fixed mounting seat through a stud fixed on the fixed mounting seat, and the fixed mounting seat is located at one end far away from the limiting hole. The utility model discloses not only easy to assemble can also improve the sensing effect.
Description
Technical Field
The utility model relates to a sensor technical field, concretely relates to sensor fixing device.
Background
In the practical use of the sensor, the measurement accuracy of the sensor is directly affected by the difference of the installation form of the sensor and the quality of the installation.
In the prior art, the mounting method of the sensor generally adopts screw mounting. Fig. 1 is a schematic diagram of a conventional screw mounting, which is called a rigid mounting, and when the mounting is performed by using screws, it is generally necessary to first form screw mounting holes 01 at a sensor mounting position, fix a sensor base 02 at the positions of the mounting holes by using screws, and finally fix a sensor 03 on the sensor base. By adopting the installation mode, after the sensor 03 is fixed on the sensor base 02, the sensing direction of the sensor 03 cannot be finely adjusted, so that the problem that the direction alignment is not easy to realize when the sensor is fixed can be caused by the installation mode in the actual measurement process. In addition, the existing sensor mounting methods also include an adhesive mounting method, which is not suitable for a vibration sensor or the like and is prone to adhesive failure.
It is a problem to be solved how to provide a sensor mounting and/or structure that is easier to operate and efficient.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a sensor fixing device easy to assemble and adjustable sensor direction.
The technical scheme of the utility model as follows:
a sensor fixation device, the fixation device comprising:
the separation blade comprises a cylindrical limiting part and a limiting piece extending outwards from the bottom of the cylindrical limiting part in the radial direction, and the cylindrical limiting part is provided with an installation through hole;
the retaining piece is arranged at one end, provided with the limiting hole, of the fastening nut, and the cylindrical limiting part is embedded into the limiting hole, wherein the diameter of the cylindrical limiting part is smaller than the inner diameter of the limiting hole, and the maximum radial distance of the limiting piece is larger than the inner diameter of the limiting hole and smaller than the inner diameter of the fastening nut;
the fastening nut is used for being fixedly connected with an external sensor base located at one end of the fastening nut limiting hole through the retaining sheet and a fixing screw or bolt penetrating through the mounting through hole;
one end of the fastening nut (20) far away from the limiting hole is used for being fastened and connected with the fixed mounting seat (50) through a stud fixed on the fixed mounting seat (50).
In some embodiments of the present invention, the sensor fixing device further comprises the fixing mount.
In some embodiments of the present invention, the sensor fixing device further comprises the sensor base.
In some embodiments of the present invention, the cylindrical limiting portion and the limiting hole are in clearance fit, and a gap is left between the sensor base and the fastening nut.
In some embodiments of the present invention, the fastening nut has a locking device on a side wall thereof.
In some embodiments of the present invention, the locking device is a jackscrew.
In some embodiments of the present invention, the thickness of the flange is smaller than the thickness of the cylindrical limiting portion.
In some embodiments of the present invention, the sensor base has external threads on an outer wall thereof.
In some embodiments of the present invention, in a state where the fastening nut is tightened, the catch is in contact with the fixed mounting seat and is pressed.
In some embodiments of the present invention, the portion of the fixing seat, which is connected to the fastening nut through a screw thread, is an opening cavity facing the limiting hole, and a diameter of the opening cavity is smaller than a maximum radial distance of the limiting piece.
The embodiment of the utility model discloses fixing device, through separation blade and fastening nut's cooperation, the alignment direction of the regulation sensor that can be convenient, not only easy to assemble can also improve the sensing effect.
Furthermore, in some embodiments of the present invention, the fastening nut is loosened by a small amount, and the fine adjustment of the sensor direction can be realized by rotating the sensor base.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the following description will be made with reference to the accompanying drawings.
In the drawings:
fig. 1 is an example of a conventional sensor mounting structure.
Fig. 2 is an expanded view of the sensor positioning and fixing device according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a sensor orientation fixture according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme according to the present invention are shown in the drawings, and other details not closely related to the present invention are omitted.
It should be emphasized that the term "comprises/comprising/comprises/having" when used herein, is taken to specify the presence of stated features, elements, steps or components, but does not preclude the presence or addition of one or more other features, elements, steps or components.
Here, it should be noted that the terms of orientation such as "upper" and "lower" appearing in the present specification refer to the orientation relative to the position shown in the drawings; the term "coupled" herein may mean not only directly coupled, but also indirectly coupled, in which case intermediates may be present, if not specifically stated. A direct connection is one in which two elements are connected without the aid of intermediate elements, and an indirect connection is one in which two elements are connected with the aid of other elements.
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, like reference characters designate the same or similar parts throughout the several views.
It should be understood that the above-mentioned "connection" may be a direct connection, i.e., two components are not connected by other components, or an indirect connection, i.e., two components are connected by other components.
Fig. 2 and 3 are an expanded view and a cross-sectional view of a sensor fixing device according to an embodiment of the present invention, and as shown in fig. 2 and 3, the sensor fixing device may include a blocking plate 40 and a fastening nut 20. The sensor base 10 and the fixed mount 50 may be part of the present fixing device.
The blocking sheet 40 may include a cylindrical limiting portion 41 and a limiting sheet 42 extending radially outward from the bottom of the cylindrical limiting portion 41, i.e., the blocking sheet 40 has a convex-shaped longitudinal section. The cylindrical position-limiting portion 41 has a mounting through hole, and the position-limiting piece 42 may be cylindrical, or may be a plurality of fan-shaped pieces, or may have other sheet-shaped pieces extending from the bottom of the cylindrical position-limiting portion 41. In the embodiment of the present invention, the diameter of the cylindrical limiting portion 41 is smaller than the maximum radial distance of the limiting sheet 42, such as the diameter of the limiting sheet 42.
One end of the fastening nut 20 has a position-restricting flange 21 extending radially inward, the position-restricting flange 21 having a position-restricting hole formed in the middle. The blocking sheet 40 is used for being arranged at one end with a limiting hole inside the fastening nut 20, and the cylindrical limiting part faces the limiting hole, so that the cylindrical limiting part is embedded into the limiting hole. As shown in fig. 3, the diameter of the cylindrical stopper portion 41 is smaller than the inner diameter of the stopper hole, so that a slight gap is formed between the cylindrical stopper portion and the stopper hole to form a clearance fit. In addition, the maximum radial distance of the limiting sheet 42 is greater than the inner diameter of the limiting hole and smaller than the inner diameter of the fastening nut 20, so that the blocking sheet 40 can be placed in the fastening nut 20 and can be blocked by the limiting flange 21 around the limiting hole without falling off from the limiting hole, and a gap can be formed between the limiting sheet 42 and the inner hole of the fastening nut 20 to form clearance fit.
Based on the above-mentioned positional relationship between the fastening nut and the blocking piece, the fastening nut 20 can be fixedly connected to the external sensor base 10 at one end of the fastening nut limiting hole through the blocking piece and a fixing screw or bolt passing through the mounting through hole. The sensor base 10 may be a part fixed to the sensor, or may be a part of the fixing device separately from the sensor. The sensor mount 10 may or may not be removably connected to the sensor.
In addition, the fastening nut 20 may be fastened to the fixed mount 50 by a stud fixed to the fixed mount 50, wherein the fixed mount 50 may be installed at a specific position where the sensor is to be fixed. After the fastening nut 20 is fastened and connected with the fixed mounting seat 50, the fixed mounting seat 50 is located at one end far away from the limiting hole.
In an embodiment of the present invention, in a situation where the sensor needs to be connected to the device under test, such as for a vibration sensor, the fixed mount 50 may be a part of the device under test 60, or may be a connecting part additionally mounted to the device under test. In the case where it is not necessary to attach a sensor to the device under test, such as for an air parameter measurement sensor, the fixed mount 50 may not be attached to the device under test 60, but merely used to be fixed to a predetermined mounting location, such as a wall, or other fixed object. The fixed mounting seat 50 may be directly connected to the device under test 60 or other fixed objects through screws, or may be connected to the device under test through other connection methods, such as a ferrule connection, a clamp connection, etc., which are not described herein again.
The fixed mounting seat 50 has an external thread that matches the internal thread of the fastening nut 20. In one embodiment of the present invention, the sensor mount 50 has external threads on its outer wall, for example, the fixed mount 50 may be a "male" type structure including a bottom disk and an externally threaded post protruding above the disk. The fastening nut can be connected to the external threaded column in a threaded connection mode.
When the sensor is actually installed, the blocking piece 40 can be placed inside the fastening nut 20, the cylindrical limiting portion 41 is embedded into the limiting hole and forms clearance fit with the limiting hole, and the limiting piece 42 also forms clearance fit with the inner hole of the fastening nut 20. The sensor base 10 is then mounted on the side of the fastening nut 20 having the stopper hole in a detachable connection manner (e.g., by a screw or bolt connection) by a stopper and a fixing screw or bolt passing through the mounting through hole. And finally, one end of the fastening nut 20, which is far away from the limiting hole, is fastened and connected with the fixed mounting seat 50 through a stud fixed on the fixed mounting seat 50. In the installation process, since the separation blade 40 and the fastening nut 20 form a clearance fit, and the sensor base 10 and the separation blade 40 form a connection, the direction of the sensor can be flexibly adjusted by rotating the sensor base 10 relative to the fastening nut 20.
In another embodiment of the present invention, the thickness of the flange 21 is smaller than the thickness of the cylindrical limiting portion 41, at this time, after the sensor base 10 and the blocking sheet 40 are fastened, since the thickness of the cylindrical limiting portion 41 is larger than the thickness of the flange 21, that is, a gap can be formed between the contact surface of the sensor base 10 and the blocking sheet 40 and the flange 21, so that the fastening nut 20 can move in the gap within a small range, and thus the relative rotation between the fastening nut 20 and the sensor base 10 can still be performed, so that the direction of the sensor can be finely adjusted by rotating the sensor base 10 during the use process.
In another embodiment of the present invention, a locking device is provided on the sidewall of the fastening nut 20 to further fasten the connection between the fastening nut 20 and the fixed mount 50. As an example, the locking means on the side wall of the fastening nut 20 is a jack screw 30. The fastening nut 20 here can be, for example, an outer hexagon nut, a threaded through hole is formed in a side surface of the outer hexagon nut, and a suitable screw is selected as the jackscrew 30 to be installed in the threaded hole, so that the fastening nut 20 and the fixed installation seat 50 can be locked and fixed. Preferably, two threaded through holes are formed in the lateral surface of the outer hexagon nut, and the threaded through holes are symmetrically formed in the lateral surface relative to the axis. During actual installation, with separation blade 40 and sensor base 10 installation on outer hexagon nut, again with outer hexagon nut direct mount or indirect installation on equipment under test 60, owing to select outer hexagon nut for use, here can use the spanner to screw up the nut, screws up the back, screws up jackscrew 30 again in the threaded hole, realizes fastening nut 20's further locking. It should be understood that the locking mechanism may alternatively be used in ways other than the jackscrew 30, such as: locknuts, spring washers, lock washers, and the like.
In an embodiment of the present invention, the outer wall of the sensor base 10 may be provided with an external thread. The fixation between the sensor base 10 and the sensor can thus be achieved directly by means of the thread, and a sealing ring can also be provided at the end of the thread for achieving a tight seal between the sensor and the sensor base 10.
In another embodiment of the present invention, the stop piece 40 and the fixing seat 50 can contact and press each other when the fastening nut 20 is tightened. When the fastening nut 20 is attached to the fixed mount 50, the end of the stopper piece 40 in the fastening nut 20 is abutted against the fixed mount 50, and when the fastening nut 20 is further tightened, the stopper piece 40 is pressed against the fixed mount 50. In another embodiment of the present invention, one end of the fixed mounting seat, which is connected to the fastening nut through a screw thread (i.e. the external threaded column), has an open cavity a facing the limiting hole, so as to facilitate the mounting of the fixed mounting seat on the fixed object. As shown in FIG. 3, the diameter of the open cavity A may be less than the maximum radial distance of the spacing piece. In this way, when the end surface of the flap 40 comes into contact with the fixed mount 50, the flap 40 is prevented from falling into the open cavity a of the fixed mount 50 when the fastening nut 20 is tightened.
It can be seen from the above embodiments that the sensor is mounted on the fixed object through the fixing device disclosed by the utility model, the direction of the sensor can be conveniently adjusted; when the sensor is arranged on the tested equipment which is inconvenient to punch, the sensing effect of the sensor can be greatly improved; furthermore, the blocking sheet and the fastening nut in the fixing device are designed to be in clearance fit, and in the using process, the fastening nut is loosened slightly, so that the fine adjustment of the direction of the sensor can be realized by rotating the base of the sensor.
The above listed embodiments show and describe the basic principles and main features of the present invention, but the present invention is not limited by the above embodiments, and the modifications, equivalent changes and modifications made by those skilled in the art without creative work should fall within the protection scope of the technical solution of the present invention.
Claims (10)
1. A sensor fixation device, the fixation device comprising:
the separation blade (40), the separation blade (40) includes the spacing portion of the cylindricality (41) and from the spacing piece of the spacing portion of the cylindricality (41) bottom radial outward extension, have the installation through-hole on the spacing portion of the cylindricality (41);
the fastening nut (20), one end of the fastening nut (20) is provided with a limiting flange (21) which extends inwards along the radial direction, a limiting hole is formed in the middle of the limiting flange (21), the blocking piece (40) is arranged at one end with the limiting hole in the fastening nut (20), and the cylindrical limiting part is embedded into the limiting hole, wherein the diameter of the cylindrical limiting part (41) is smaller than the inner diameter of the limiting hole, and the maximum radial distance of the limiting piece (42) is larger than the inner diameter of the limiting hole and smaller than the inner diameter of the fastening nut (20);
the fastening nut (20) is used for being fixedly connected with an external sensor base (10) positioned at one end of a fastening nut limiting hole through the baffle sheet and a fixing screw or bolt penetrating through the mounting through hole;
one end of the fastening nut (20) far away from the limiting hole is used for being fastened and connected with the fixed mounting seat (50) through a stud fixed on the fixed mounting seat (50).
2. The sensor fixture according to claim 1, further comprising the fixture mount (50).
3. The sensor fixture according to claim 1, characterized in that the sensor fixture further comprises the sensor mount (10).
4. The sensor fixing device according to claim 3, wherein the cylindrical limiting part (41) is in clearance fit with the limiting hole, and a gap is reserved between the sensor base (10) and the fastening nut (20).
5. Sensor fixing device according to claim 1, characterized in that the fastening nut (20) has locking means on its side walls.
6. Sensor fixing device according to claim 5, characterized in that the locking means is a jackscrew (30).
7. The sensor fixing device according to claim 1, wherein the thickness of the flange (21) is smaller than the thickness of the cylindrical stopper portion (41).
8. The sensor fixing device according to claim 3, characterized in that the outer wall of the sensor base (10) has an external thread.
9. Sensor fixing device according to claim 1 or 2, characterized in that the stop (40) is in contact with the fixing mount (50) and is pressed in the tightened state of the fastening nut (20).
10. The sensor fixing device according to claim 9, wherein the portion of the fixing mount (50) that is threadedly connected with the fastening nut (20) is an open cavity (a) facing the stopper hole, and the diameter of the open cavity (a) is smaller than the maximum radial distance of the stopper piece (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921754784.1U CN210513176U (en) | 2019-10-18 | 2019-10-18 | Sensor fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921754784.1U CN210513176U (en) | 2019-10-18 | 2019-10-18 | Sensor fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210513176U true CN210513176U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921754784.1U Active CN210513176U (en) | 2019-10-18 | 2019-10-18 | Sensor fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210513176U (en) |
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2019
- 2019-10-18 CN CN201921754784.1U patent/CN210513176U/en active Active
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