CN218481046U - High-efficient sealed angular displacement sensor - Google Patents
High-efficient sealed angular displacement sensor Download PDFInfo
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- CN218481046U CN218481046U CN202221953646.8U CN202221953646U CN218481046U CN 218481046 U CN218481046 U CN 218481046U CN 202221953646 U CN202221953646 U CN 202221953646U CN 218481046 U CN218481046 U CN 218481046U
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Abstract
The utility model discloses a high-efficient sealed angular displacement sensor, which comprises an outer shell, the apron, a rotating shaft, circuit unit, the closing plate, silica gel sealing member and sealing member clamp plate, the one end and the cover connection of shell, the outside surface of apron is equipped with the heavy groove of apron, the closing plate is installed in the heavy groove of apron, be equipped with the sealing washer between the neighboring of closing plate and the cell wall of the heavy groove of apron, a side surface that is close to the heavy groove tank bottom of apron on the closing plate is equipped with first seal groove, silica gel sealing member and sealing member clamp plate are all arranged in first seal groove, the lead wire passes the apron through-hole in proper order, the central through-hole of silica gel sealing member, the central through-hole of sealing member clamp plate, arrange in behind the closing plate through-hole outside the apron, the sealing member clamp plate pushes down the silica gel sealing member and makes it extrude to the direction that is close to the lead wire. The utility model discloses an increase the closing plate and finally realize the high-efficient sealed effect between lead wire and closing plate and the apron, compare traditional structure and show and improve sealed effect.
Description
Technical Field
The present invention relates to an angular displacement sensor (or potentiometer), and more particularly, to an efficient sealed angular displacement sensor (or potentiometer).
Background
An angular displacement sensor (or potentiometer) is a sensor (or potentiometer) that converts a mechanical angular displacement into a resistance or voltage that is a function of the angular displacement to achieve angular displacement detection. The basic structure of the circuit module generally comprises a shell, a cover plate, a rotating shaft and a circuit module arranged in the shell, wherein the circuit module generally comprises a resistor body, an insulating sleeve, a collector ring and a brush assembly, the rotating shaft penetrates through a central through hole of the resistor body, the insulating sleeve is sleeved on the rotating shaft, the collector ring is installed on the insulating sleeve, the brush assembly is installed on the collector ring and is contacted with a working surface of the resistor body, power supply input and signal output of the circuit module are completed through leads, and the leads penetrate through corresponding through holes in the shell.
The lead of the traditional angular displacement sensor generally directly passes through a corresponding through hole on the shell, special sealing treatment is not carried out, or simple conventional sealing treatment is carried out through a sealing ring and the like, so that the problem does not exist in the application occasion with low sealing performance requirement, but in the application occasion with high sealing performance requirement, dust or rainwater can enter the shell through a gap between the lead of the traditional angular displacement sensor and the shell, and the normal work of the sensor is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-efficient sealed angular displacement sensor that sealing performance is splendid between lead wire and the shell just for solving above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
the utility model provides a high-efficient sealed angular displacement sensor, includes shell, apron, pivot and arranges the circuit unit in shown shell in, the inner of the lead wire of circuit unit with circuit unit connection, outer end are arranged in outside the shell, the one end of shell with the cover connection, high-efficient sealed angular displacement sensor still includes closing plate, silica gel sealing member and sealing member clamp plate, the outside surface of apron is equipped with apron heavy groove, the tank bottom that the apron sinks the groove is equipped with the apron through-hole, the closing plate is installed in the apron sinks the groove, the neighboring of closing plate with be equipped with the sealing washer between the cell wall of apron heavy groove, be close to on the closing plate a side surface that the groove bottom was sunk to the apron is equipped with first seal groove, the tank bottom of first seal groove is equipped with link up to the closing plate through-hole on closing plate opposite side surface, the silica gel sealing member with the sealing member clamp plate is all arranged in just the silica gel sealing member is close to the apron sinks the tank bottom, the lead wire passes in proper order the apron through-hole, the center through-hole of silica gel sealing member clamp plate is arranged in behind the closing plate through-hole, the sealing member clamp plate will the silica gel sealing member clamp plate will make it to be close to the direction of lead wire extrude.
Preferably, in order to realize the purpose of extruding the silica gel sealing piece towards the direction close to the lead, the contact surface between the silica gel sealing piece and the sealing piece pressing plate is trumpet-shaped and is close to one end diameter of the bottom of the cover plate sinking groove is larger than the other end diameter.
Preferably, in order to realize a better sealing effect on the lead, a second sealing groove is formed in the surface of one side, away from the bottom of the cover plate sinking groove, of the sealing plate, the lead penetrates through the second sealing groove, and sealing glue is filled in the second sealing groove.
Preferably, in order to further improve the sealing effect between the sealing plate and the cover plate, two sealing rings are provided between the outer peripheral edge of the sealing plate and the groove wall of the cover plate sink groove, and the two sealing rings are arranged in parallel.
Preferably, in order to further improve the sealing effect between the lead and the sealing plate and the cover plate and fix the lead to avoid the lead from shaking to affect the sealing performance, the part of the lead positioned outside the sealing plate is bent by 90 degrees and pressed by a lead pressing plate, the lead pressing plate is mounted on the surface of the outer side of the cover plate through a screw, the lead pressing plate is provided with an inner cavity, the lead is arranged in the inner cavity, the end part of the lead is positioned outside the inner cavity, and the inner cavity of the lead pressing plate is filled with sealant.
Preferably, in order to stably and reliably connect the sealing plate and the cover plate, the sealing plate is connected to the bottom of the cover plate sink groove by a screw.
Preferably, in order to facilitate installation of the two circuit units to achieve a dual redundancy output function and improve a sealing effect at a joint between the cover plate and the housing, the housing includes a middle housing and an end housing which are connected to each other, the cover plate is connected to the middle housing, and the connection structures between the first cylindrical member and the second cylindrical member, which are set as follows, are adopted between the cover plate and the middle housing and between the middle housing and the end housing: the first barrel-shaped part with there is overlap portion and this overlap portion between the second barrel-shaped part first barrel-shaped part is outside, second barrel-shaped part is inside, first barrel-shaped part on with the position that the overlap portion corresponds is equipped with the counter sink, the counter sink screw pass this counter sink with the screw of second barrel-shaped part is connected, the nut of counter sink screw is arranged in corresponding counter sink and the outside of this counter sink leaves the space and is filled with sealed glue in this space, the tip of first barrel-shaped part is equipped with the convex ring of evagination, the tip of second barrel-shaped part is equipped with the concave ring of indent, the convex ring is arranged in the concave ring and the concave ring in leave the annular space and is filled with sealed glue in this annular space.
Preferably, in order to improve the sealing effect between the rotating shaft and the end shell, the rotating shaft penetrates through the end shell and correspondingly passes through the end shell, and a sealing ring is arranged between the rotating shaft and the hole wall of the through hole.
The beneficial effects of the utility model reside in that:
the utility model discloses an increase the closing plate, install the sealing washer between closing plate and apron, draw the lead wire from the closing plate through-hole, set up silica gel sealing member and sealing member clamp plate between lead wire and closing plate, utilize the sealing member clamp plate to extrude the silica gel sealing member to the direction that is close to the lead wire, realize high-efficient sealing function, finally realize the high-efficient sealed effect between lead wire and closing plate and the apron, compare the structure of directly drawing or installing the sealing washer additional between traditional lead wire and shell or apron and show and improve sealed effect; through increasing the second seal groove and filling sealed glue, increase the lead wire clamp plate and fill sealed glue in the inner chamber of lead wire clamp plate, the high-efficient sealed effect between lead wire and closing plate and the apron has been improved more showing.
Drawings
Fig. 1 is a front cross-sectional view of the high-efficiency sealed angular displacement sensor of the present invention;
fig. 2 is a left side view of the high-efficiency sealed angular displacement sensor of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1, high-efficient sealed angular displacement sensor includes the shell (see well outer casing 12 and end shell 13 in fig. 1), apron 3, pivot 14, arranges the circuit unit in shown shell (see first circuit unit 9 and second circuit unit 10 in fig. 1), closing plate 5, silica gel sealing member 8 and sealing member clamp plate 7 in, the inner of lead wire 2 of circuit unit with circuit unit connects, the outer end is arranged in outside the shell, the one end of shell is connected with apron 3, and the outside surface of apron 3 is equipped with apron heavy groove (not marked in the figure), the tank bottom of apron heavy groove is equipped with the apron through-hole (not marked in the figure), and closing plate 5 installs in the apron heavy groove, the neighboring of closing plate 5 with be equipped with sealing washer 4 between the cell wall of apron heavy groove, be close to on closing plate 5 apron heavy groove bottom one side surface is equipped with first seal groove (not marked in the figure), the tank bottom of first seal groove is equipped with the closing plate through-hole (not marked in the drawing) that link up to closing plate 5 other side surface, silica gel sealing member 8 and sealing member clamp plate 7 all arrange in first seal groove 8 and cover plate bottom of apron heavy groove 8, silica gel sealing member extrusion through-hole, the central through-pressing plate 2, the central through-hole of lead wire 7 pass through-pressing plate 8, silica gel sealing member, the central through-pressing plate 8 and push down the central through-pressing plate 2.
As shown in fig. 1 and 2, the present invention also discloses the following various more optimized specific structures:
in order to realize the purpose of extruding the silica gel sealing member 8 towards the direction close to the lead 2, the contact surface between the silica gel sealing member 9 and the sealing member pressing plate 7 is in a horn shape, and the diameter of one end close to the bottom of the cover plate sinking groove is larger than that of the other end. The sealing member clamp plate 7 shown in fig. 1 is further provided with a clamp plate inner cavity, the silicone sealing member 9 is further provided with a sealing member protruding portion, and the sealing member protruding portion is arranged in the clamp plate inner cavity, which is to make the silicone sealing member 9 and the sealing member clamp plate 7 have a better limit function, but most importantly, the shape of the contact surface between the silicone sealing member 9 and the sealing member clamp plate 7 is the key place for improving the sealing effect, so the utility model discloses not limit the concrete shapes of the silicone sealing member 9 and the sealing member clamp plate 7.
In order to realize a better sealing effect on the lead 2, a second sealing groove (not marked in the figure) is arranged on the surface of one side of the sealing plate 5, which is far away from the bottom of the cover plate sinking groove, and the lead 2 penetrates through the second sealing groove, and the second sealing groove is filled with a sealant 6.
In order to further improve the sealing effect between the sealing plate 5 and the cover plate 3, two sealing rings 4 are provided in parallel between the outer peripheral edge of the sealing plate 5 and the wall of the cover plate sink.
In order to further improve the sealing effect between the lead 2 and the sealing plate 5 and the cover plate 3 and fix the lead 2 to avoid the lead 2 from shaking to affect the sealing performance, the part of the lead 2, which is positioned outside the sealing plate 5, is bent by 90 degrees and pressed by the lead pressing plate 1, the lead pressing plate 1 is mounted on the surface of the outer side of the cover plate 3 through a screw, the lead pressing plate 1 is provided with an inner cavity, the lead 2 is arranged in the inner cavity, the end part of the lead 2 is positioned outside the inner cavity, and the inner cavity of the lead pressing plate 1 is filled with a sealant 6.
In order to connect the sealing plate 5 to the cover plate 3 in a stable and reliable manner, the sealing plate 5 is connected to the base of the cover plate counter sink by screws.
In order to facilitate the installation of two circuit units to realize the dual-redundancy output function and improve the sealing effect of the joint between the cover plate 3 and the shell, the shell comprises a middle outer shell 12 and an end outer shell 13 which are connected with each other, the cover plate 3 is connected with the middle outer shell 12, and the connection structures between the cover plate 3 and the middle outer shell 12 and between the middle outer shell 12 and the end outer shell 13 are respectively arranged between the first cylindrical part and the second cylindrical part as follows: the sealing device comprises a first barrel-shaped part and a second barrel-shaped part, wherein an overlapped part is arranged between the first barrel-shaped part and the second barrel-shaped part in the circumferential direction, the first barrel-shaped part and the second barrel-shaped part are arranged in the overlapped part, a counter bore is arranged at a position, corresponding to the overlapped part, on the first barrel-shaped part, a counter screw 11 penetrates through the counter bore to be connected with a screw hole of the second barrel-shaped part, a nut of the counter screw 11 is arranged in the corresponding counter bore, a space is reserved on the outer side of the counter bore, sealant 6 is filled in the space, an outward convex ring 15 is arranged at the end part of the first barrel-shaped part, an inward concave ring (not marked in the drawing) is arranged at the end part of the second barrel-shaped part, the convex ring 15 is arranged in the concave ring, an annular gap is reserved in the concave ring, and the sealant 6 is filled in the annular gap. Description of the drawings: in the connection structure between the cover plate 3 and the middle outer shell 12, the cover plate 3 is used as a first cylindrical member, and the middle outer shell 12 is used as a second cylindrical member; in the above-described connection structure between the middle housing 12 and the end housing 13, the middle housing 12 serves as a first cylindrical member, and the end housing 13 serves as a second cylindrical member.
Preferably, in order to improve the sealing effect between the rotating shaft 14 and the end housing 13, the rotating shaft 14 passes through the end housing 13 correspondingly, and a sealing ring 4 is arranged between the rotating shaft 14 and the hole wall of the through hole.
As shown in fig. 1 and fig. 2, when in use, the end of the cover plate 3 can be placed on a water surface (for example, a rain-facing surface, i.e., an upward or oblique upward direction), the end of the end housing 13 can be placed on a water-free surface (for example, a rain-facing surface, i.e., a downward or oblique downward direction), the sealant 6 in the lead pressing plate 1, the sealant 6 in the second sealing groove, the two sealing rings 4 between the peripheral edge of the sealing plate 5 and the groove wall of the cover plate sinking groove, and the sealing pressing plate 7 press the silicone sealing member 8 to press the silicone sealing member to a direction close to the lead 2, so as to achieve a very reliable sealing effect, and at the same time, the sealant 6 in the corresponding countersunk hole on the first tubular member and the sealant 6 in the annular gap in the counter recessed ring on the second tubular member achieve a very reliable sealing effect, and the good sealing effect achieved by the sealing ring 4 between the rotating shaft 14 and the end housing 13, so that rainwater cannot enter the sensor; the rotating shaft 14 is connected with a rotating part of the device to be detected, the rotating part drives the rotating shaft 14 to rotate, the rotating shaft 14 drives corresponding rotating parts of the first circuit unit 9 and the second circuit unit 10 to synchronously rotate, and corresponding sensing elements of the first circuit unit 9 and the second circuit unit 10 transmit the sensed change electric signals to an external processor through the lead 2, so that the angular displacement detection function of the angular displacement sensor is realized.
Description of the drawings: the utility model discloses an it is important to lie in improving the high-efficient sealed effect between lead wire 2 and closing plate 5 and the apron 3, simultaneously with the sealed effect between apron 3 and the shell than showing and improve, sealed effect between pivot 14 and the shell improves some, the whole sealed effect that so realizes whole sensor apron end and circumference outer wall is showing the purpose that improves, use in the environment that has the rainwater and have good sealed effect (only need with the apron end as meeting the rain face, with the other end as the face of a back rain can), the problem that general angle displacement sensor can not be used for the rainwater environment has been solved, but this sensor can not be used to the service environment in the long-term immersion liquid, because sealed effect between pivot 14 and the shell still can not reach the requirement, nevertheless this is not the utility model discloses the problem that needs to solve.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.
Claims (8)
1. An efficient sealed angular displacement sensor comprises a shell, a cover plate, a rotating shaft and a circuit unit arranged in the shell, wherein the inner end of a lead of the circuit unit is connected with the circuit unit, the outer end of the lead of the circuit unit is arranged outside the shell, one end of the shell is connected with the cover plate, and the angular displacement sensor is characterized in that: the utility model discloses a high-efficient sealed angular displacement sensor, including apron, sealing member and sealing member clamp plate, the outside surface of apron is equipped with the heavy groove of apron, the tank bottom that the groove was sunk to the apron is equipped with the apron through-hole, the closing plate is installed in the heavy inslot of apron, the neighboring of closing plate with be equipped with the sealing washer between the cell wall that the groove was sunk to the apron, be close to on the closing plate a side surface that the groove bottom was sunk to the apron is equipped with first seal groove, the tank bottom of first seal groove is equipped with and link up to the closing plate through-hole on closing plate opposite side surface, the silica gel sealing member with the sealing member clamp plate is all arranged in just the silica gel sealing member is close to the heavy groove tank bottom of apron, the lead wire passes in proper order the apron through-hole the center through-hole of silica gel sealing member the center through-hole of sealing member clamp plate arrange in behind the closing plate through-hole outside the apron, the sealing member clamp plate will the silica gel sealing member is pushed down and is made it to being close to the direction extrusion of lead wire.
2. A highly efficient sealed angular displacement sensor according to claim 1, wherein: the silica gel sealing member with contact surface between the sealing member clamp plate is tubaeform and is close to the one end diameter of apron heavy groove tank bottom is greater than the other end diameter.
3. A highly efficient sealed angular displacement sensor according to claim 1 or 2, wherein: and a second sealing groove is formed in the surface of one side, far away from the bottom of the cover plate sinking groove, of the sealing plate, the lead penetrates through the second sealing groove, and a sealing glue is filled in the second sealing groove.
4. A highly efficient sealed angular displacement sensor according to claim 1 or 2, wherein: the sealing rings arranged between the peripheral edge of the sealing plate and the groove wall of the cover plate sinking groove are two sealing rings arranged in parallel.
5. A highly efficient sealed angular displacement sensor according to claim 1 or 2, wherein: the lead pressing plate is installed on the surface of the outer side of the cover plate through screws, an inner cavity is formed in the lead pressing plate, the lead is arranged in the inner cavity, the end portion of the lead is located outside the inner cavity, and sealant is filled in the inner cavity of the lead pressing plate.
6. A highly efficient sealed angular displacement sensor according to claim 1 or 2, wherein: the sealing plate is connected with the bottom of the cover plate sinking groove through a screw.
7. A highly efficient sealed angular displacement sensor according to claim 1 or 2, wherein: the shell comprises a middle shell and an end shell which are connected with each other, the cover plate is connected with the middle shell, and the connecting structures between the first cylindrical piece and the second cylindrical piece which are set as follows are adopted between the cover plate and the middle shell and between the middle shell and the end shell: the first barrel-shaped part with there is overlap portion and this overlap portion between the second barrel-shaped part first barrel-shaped part is outside, second barrel-shaped part is inside, first barrel-shaped part on with the position that the overlap portion corresponds is equipped with the counter sink, the counter sink screw pass this counter sink with the screw of second barrel-shaped part is connected, the nut of counter sink screw is arranged in corresponding counter sink and the outside of this counter sink leaves the space and is filled with sealed glue in this space, the tip of first barrel-shaped part is equipped with the convex ring of evagination, the tip of second barrel-shaped part is equipped with the concave ring of indent, the convex ring is arranged in the concave ring and the concave ring in leave the annular space and is filled with sealed glue in this annular space.
8. A highly efficient sealed angular displacement sensor according to claim 7, wherein: the rotating shaft penetrates through the end shell and correspondingly penetrates through the end shell, and a sealing ring is arranged between the rotating shaft and the wall of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221953646.8U CN218481046U (en) | 2022-07-27 | 2022-07-27 | High-efficient sealed angular displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221953646.8U CN218481046U (en) | 2022-07-27 | 2022-07-27 | High-efficient sealed angular displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218481046U true CN218481046U (en) | 2023-02-14 |
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ID=85163867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221953646.8U Active CN218481046U (en) | 2022-07-27 | 2022-07-27 | High-efficient sealed angular displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218481046U (en) |
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2022
- 2022-07-27 CN CN202221953646.8U patent/CN218481046U/en active Active
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