CN213455932U - Wireless transmission force transducer - Google Patents
Wireless transmission force transducer Download PDFInfo
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- CN213455932U CN213455932U CN202022128972.2U CN202022128972U CN213455932U CN 213455932 U CN213455932 U CN 213455932U CN 202022128972 U CN202022128972 U CN 202022128972U CN 213455932 U CN213455932 U CN 213455932U
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Abstract
The utility model provides a wireless transmission force transducer, which comprises a cylindrical pin, a handle part, an induction sheet, a processing unit and a wireless communication unit, wherein the cylindrical pin is arranged in a pin hole which is formed by the fork iron of a railway turnout and corresponds to an action rod of a point switch; a handle portion provided at an upper end portion of the cylindrical pin to define a position of the cylindrical pin in an axial direction thereof; the sensing piece is used for sensing the deformation of the cylindrical pin and converting the deformation into a corresponding electric signal; the processing unit is used for processing the electric signals converted by the induction sheet to form corresponding digital signals; the wireless communication unit is connected with the terminal equipment in a wireless mode to transmit the digital signals formed by the processing unit to the terminal equipment. Therefore, a plurality of load cells can be flexibly and conveniently connected with the terminal equipment for data transmission. The problem of force cell sensor among the prior art adopt wired mode to be connected inconvenient to use with terminal equipment is solved.
Description
Technical Field
The utility model relates to a railway check out test set field particularly, relates to a wireless transmission force cell sensor.
Background
The railway turnout is dragged and converted by a point switch in the working process. After a railway turnout works for a long time, the conversion resistance of the turnout is increased due to a roadbed or other reasons, the acting force of a point switch is limited, and the normal work of the point switch is influenced after the turnout resistance is increased.
The turnout conversion comprises three processes of unlocking, conversion and locking, in order to ensure the driving safety of a train, various mechanical parameters of the turnout need to be detected regularly, specifically comprising static force in a locking state, resistance force when the turnout is converted normally, maximum output force (friction force) of a point switch, rebound force of a switch rail after unlocking, friction force in a conversion process and blocking resistance force in the conversion process. At present, the detection work is mainly carried out by adopting a force-measuring sensor with a shape similar to that of a connecting pin, and the force-measuring sensor is inserted into a connecting hole between an action rod of a point switch and a forked iron of a railway turnout, so that the resistance parameter of turnout conversion can be measured in the process of converting the railway turnout and is sent to a handheld terminal device connected with the force-measuring sensor.
A railway turnout generally has a plurality of goat to pull the conversion, and current force cell all adopts wired mode and hand-held terminal equipment to be connected, and a hand-held terminal equipment needs to adopt wired mode to be connected with a plurality of force cell sensors in the use, and it is very inconvenient to use. And because the connecting wire length of each force cell is limited, the user has to carry out the detection in a close distance, and the use mode is not flexible enough.
In addition, the existing force measuring sensor cannot independently process and display detected data, the detected data must be sent to the handheld terminal device to be processed and displayed, the handheld terminal device needs to be connected to be matched for use when a single point switch is detected, and the use mode is not flexible enough.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a wireless transmission force sensor to solve the problem that the force sensor among the prior art at least adopts wired mode and hand-held terminal equipment to be connected awkward.
In order to achieve the above object, the utility model provides a wireless transmission force cell sensor, include: the cylindrical pin is used for penetrating through a pin hole which corresponds to a fork iron of the railway turnout and an action rod of the point switch; a handle portion provided at an upper end portion of the cylindrical pin to define a position of the cylindrical pin in an axial direction thereof; the induction sheet is arranged in the cylindrical pin and used for inducing the deformation of the cylindrical pin and converting the deformation into a corresponding electric signal; the processing unit is arranged in the handle part and connected with the sensing sheet, and is used for processing the electric signal converted by the sensing sheet to form a corresponding digital signal; and the wireless communication unit is arranged in the handle part and is connected with the processing unit, and the wireless communication unit is connected with the terminal equipment in a wireless mode so as to transmit the digital signals formed by the processing unit to the terminal equipment.
Further, the wireless communication unit is connected with the terminal device in at least one of the following ways: bluetooth, WIFI and LoRa.
Further, the wireless transmission load cell further comprises: the display screen is arranged on the handle part and is connected with the processing unit; the processing unit is also used for calculating and determining various mechanical parameters in the railway turnout conversion process according to the digital signals; the display screen is used for displaying the mechanical parameters.
Further, the wireless transmission load cell further comprises: the control key, the control key is a plurality of, and a plurality of control keys all set up on handle portion and are connected with processing unit, and the control key is used for switching to the mechanical parameter that the display screen shows.
Further, the wireless transmission load cell further comprises: and the processing unit is connected with the terminal equipment through the connecting line so as to transmit the digital signal formed by the processing unit to the terminal equipment.
Furthermore, one end of the connecting wire is provided with a first connector, the handle part is provided with a second connector, and the second connector is connected with the processing unit; the first connector and the second connector are detachably connected so that the processing unit is connected with the terminal equipment through a connecting wire.
Further, the wireless transmission load cell further comprises: the rechargeable battery is arranged in the handle part and is connected with the induction sheet, the processing unit, the wireless communication unit and the display screen so as to supply power to the induction sheet, the processing unit, the wireless communication unit and the display screen; wherein, the connecting wire is connected with the rechargeable battery to charge the rechargeable battery through an external charger.
Further, the wireless transmission load cell further comprises: the wireless charging unit is connected with the rechargeable battery; the wireless charging unit is used for charging the rechargeable battery through the external wireless charging equipment.
Further, the cylindrical pin includes: the induction coils are arranged at intervals along the axial direction of the cylindrical pin; when the cylindrical pin is inserted into the pin holes of the fork iron and the action rod, the plurality of induction coils are respectively positioned in the pin holes of the fork iron and the action rod; the induction coil is provided with a first tangent plane on two opposite side walls along a first preset diameter direction, the induction coil is provided with a second tangent plane on two opposite side walls along a second preset diameter direction, the first preset diameter direction is the acting force induction direction of the induction coil, and the first preset diameter direction and the second preset diameter direction are mutually vertical; two force contact areas are formed between each first tangent plane and two adjacent second tangent planes, and when the action rod exerts an acting force on the fork-shaped iron, the two force contact areas are in contact with the fork-shaped iron or the hole wall of the pin hole of the action rod.
Furthermore, three induction coils are provided; when the cylindrical pin is inserted into the pin holes of the fork iron and the action rod, two corresponding force contact areas of the induction coil positioned in the middle are contacted with the hole wall of the pin hole of the action rod; and four corresponding force contact areas of the two induction coils positioned on the two sides are contacted with the hole wall of the pin hole of the fork-shaped iron.
The wireless transmission force transducer applying the technical scheme of the utility model comprises a cylindrical pin, a handle part, an induction sheet, a processing unit and a wireless communication unit, wherein the cylindrical pin is arranged in a pin hole which is formed in the fork iron of the railway turnout and corresponds to the action rod of the point switch; a handle portion provided at an upper end portion of the cylindrical pin to define a position of the cylindrical pin in an axial direction thereof; the induction sheet is arranged in the cylindrical pin and used for inducing the deformation of the cylindrical pin and converting the deformation into a corresponding electric signal; the processing unit is arranged in the handle part and connected with the sensing sheet, and the processing unit is used for processing the electric signal converted by the sensing sheet to form a corresponding digital signal; the wireless communication unit is arranged in the handle part and connected with the processing unit, and the wireless communication unit is connected with the terminal equipment in a wireless mode so as to transmit the digital signals formed by the processing unit to the terminal equipment. Therefore, a plurality of load cells can be flexibly and conveniently connected with the terminal equipment for data transmission. The problem of force cell sensor among the prior art adopt wired mode to be connected inconvenient to use with terminal equipment is solved.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of an alternative mounting structure of a wireless transmission load cell according to an embodiment of the present invention;
FIG. 2 is a functional block diagram of an alternative wireless transmission load cell in accordance with an embodiment of the present invention;
fig. 3 is a schematic top view of an alternative wireless transmission load cell in accordance with an embodiment of the present invention;
fig. 4 is a schematic side view of an alternative wireless transmission load cell in accordance with an embodiment of the present invention; and
fig. 5 is another schematic side view of an alternative wireless transmission load cell according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a cylindrical pin; 11. an induction coil; 12. a first section; 13. a second section; 14. a force contact zone; 20. a handle portion; 21. a second connector; 30. an induction sheet; 40. a processing unit; 50. a wireless communication unit; 60. a terminal device; 70. a display screen; 80. a control key; 90. a connecting wire; 91. a first connector; 100. a rechargeable battery; 110. a wireless charging unit; 120. fork iron; 130. an action rod.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
According to the embodiment of the present invention, as shown in fig. 1 and 2, the wireless transmission load cell comprises a cylindrical pin 10, a handle 20, an induction sheet 30, a processing unit 40 and a wireless communication unit 50, wherein the cylindrical pin 10 is used to penetrate through a pin hole corresponding to a fork iron 120 of a railway switch and an action rod 130 of a switch machine; a handle portion 20 is provided at the upper end portion of the cylindrical pin 10 to define the position of the cylindrical pin 10 in the axial direction thereof; the sensing piece 30 is arranged in the cylindrical pin 10, and the sensing piece 30 is used for sensing the deformation of the cylindrical pin 10 and converting the deformation into a corresponding electric signal; the processing unit 40 is arranged in the handle part 20 and connected with the sensing piece 30, and the processing unit 40 is used for processing the electric signal converted by the sensing piece 30 to form a corresponding digital signal; a wireless communication unit 50 is provided in the handle section 20 and connected with the processing unit 40, and the wireless communication unit 50 is connected with the terminal device 60 in a wireless manner to transmit the digital signal formed by the processing unit 40 to the terminal device 60. Thereby enabling a plurality of load cells to be flexibly and conveniently connected to the terminal device 60 for data transfer. The problem of force cell sensor among the prior art adopt wired mode to be connected inconvenient to use with terminal equipment is solved.
In particular, the wireless communication unit 50 is connected to the terminal device 60 in at least one of the following ways: bluetooth, WIFI and LoRa. In the embodiment, the wireless connection is preferably performed by adopting LoRa, which is an ultra-long distance wireless transmission scheme based on a spread spectrum technology, and the propagation distance of the LoRa is longer than that of other wireless modes under the same power consumption condition, so that the unification of low power consumption and long distance is realized, and the distance of the LoRa is enlarged by 3 to 5 times than that of the conventional wireless radio frequency communication under the same power consumption condition.
To enable the wireless transmission load cell of this embodiment to be used independently, further, as shown in FIG. 3, the wireless transmission load cell further includes a display screen 70, the display screen 70 being disposed on the top surface of the handle portion 20, the display screen 70 being connected to the processing unit 40; the processing unit 40 is further configured to calculate and determine various mechanical parameters in the railway turnout conversion process according to the processed digital signals, where the mechanical parameters specifically include a static force in a locking state, a resistance force when the turnout is normally converted, a maximum output force (friction force) of a point switch, a rebound force after the switch rail is unlocked, a friction force in the conversion process, a blocking resistance force in the conversion process, and the like; during the detection process, the display screen 70 can display the mechanical parameters in real time in the form of numbers and curves. The handle portion 20 is further provided with a plurality of control keys 80, the control keys 80 are all arranged on the handle portion 20 and connected with the processing unit 40, and the control keys 80 are used for switching the mechanical parameters displayed on the display screen 70, so that different mechanical parameters can be viewed. Therefore, when a single point switch is detected, the detection can be finished by independently adopting a wireless transmission force transducer without matching with the connection terminal device 60.
In order to ensure the smooth detection process when the wireless signal connection is unstable, further, as shown in fig. 4 and 5, the wireless transmission load cell further includes a connection line 90, a first connection head 91 is disposed at one end of the connection line 90, a second connection head 21 is disposed on the handle portion 20, and the second connection head 21 is connected to the processing unit 40; wherein the first connector 91 is detachably connected with the second connector 21 to connect the processing unit 40 with the terminal device 60 through the connection line 90. When the wireless connection is normal, the connecting wire 90 is detached, so that the wireless transmission force-measuring sensor can be conveniently used; when the wireless connection is unstable, the connection wire 90 can be used for direct connection, so that the smooth proceeding of the detection process is ensured.
The sensing piece 30, the processing unit 40, the wireless communication unit 50 and the display screen 70 need to be supplied with power during operation, and further, the wireless transmission load cell further comprises a rechargeable battery 100, wherein the rechargeable battery 100 is arranged in the handle portion 20 and is connected with the sensing piece 30, the processing unit 40, the wireless communication unit 50 and the display screen 70 so as to supply power to the sensing piece 30, the processing unit 40, the wireless communication unit 50 and the display screen 70; the connection line 90 is connected to the rechargeable battery 100, and the connection line 90 is a charging and signal transmission dual-function line, which can transmit data and can also charge the rechargeable battery 100 by connecting an external charger.
In addition, in order to facilitate charging, further, the wireless transmission load cell further includes a wireless charging unit 110, the wireless charging unit 110 is a wireless induction coil, and the wireless charging unit 110 is connected with the rechargeable battery 100; in use, the wireless charging unit 110 charges the rechargeable battery 100 through an external wireless charging device.
Further, as shown in fig. 4 and 5, the cylindrical pin 10 includes a plurality of induction coils 11, the induction coils 11 are arranged at intervals along the axial direction of the cylindrical pin 10; when the cylindrical pin 10 is inserted into the pin holes of the fork iron 120 and the action rod 130, the plurality of induction coils 11 are respectively located in the pin holes of the fork iron 120 and the action rod 130, and in the embodiment, three induction coils 11 are provided; the induction coil 11 is provided with first tangent planes 12 on two opposite side walls along a first preset diameter direction, the induction coil 11 is provided with second tangent planes 13 on two opposite side walls along a second preset diameter direction, the first preset diameter direction is an acting force induction direction of the induction coil 11, the first preset diameter direction and the second preset diameter direction are mutually vertical, namely the two first tangent planes 12 are mutually vertical to the two second tangent planes 13; the side walls between each first cut surface 12 and two adjacent second cut surfaces 13 form two force contact areas 14, i.e. four force contact areas 14 are provided on each coil 11.
When the action rod 130 pulls the fork-shaped iron 120, two force contact areas 14 of the induction coil 11 positioned in the middle and facing the rear end of the action rod 130 are in contact with the hole walls of the pin holes of the action rod 130; four force contact areas 14, which are positioned at two ends of the two induction coils 11 and face the rear end of the action rod 130, are correspondingly contacted with the hole walls of the upper pin hole and the lower pin hole of the fork-shaped iron 120, so that the railway turnout is driven to switch; when the action rod 130 pushes the fork iron 120, two force contact areas 14 of the induction coil 11 positioned in the middle and facing the rear end of the fork iron 120 are in contact with the hole wall of the pin hole of the action rod 130; the four force contact areas 14 of the two induction coils 11 at the two ends, which face the rear end of the fork-shaped iron 120, are in contact with the hole walls of the upper pin hole and the lower pin hole of the fork-shaped iron so as to drive the railway turnout to switch in the opposite direction.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A wireless-transmission load cell, comprising:
the cylindrical pin (10) is used for being arranged in a pin hole which corresponds to a fork iron (120) of a railway turnout and an action rod (130) of a switch machine in a penetrating mode;
a handle portion (20) provided at an upper end portion of the cylindrical pin (10) to define a position of the cylindrical pin (10) in an axial direction thereof;
the induction sheet (30) is arranged in the cylindrical pin (10), and the induction sheet (30) is used for inducing the deformation of the cylindrical pin (10) and converting the deformation into a corresponding electric signal;
the processing unit (40) is arranged in the handle part (20) and is connected with the sensing sheet (30), and the processing unit (40) is used for processing the electric signals converted by the sensing sheet (30) to form corresponding digital signals;
a wireless communication unit (50) disposed within the handle portion (20) and connected to the processing unit (40), the wireless communication unit (50) being connected in a wireless manner to a terminal device (60) to transmit the digital signal formed by the processing unit (40) to the terminal device (60).
2. The wireless transmission load cell according to claim 1, wherein said wireless communication unit (50) is connected to said terminal device (60) in at least one of the following ways:
bluetooth, WIFI and LoRa.
3. The wireless-transmission load cell of claim 1, further comprising:
a display screen (70) disposed on the handle portion (20), the display screen (70) being connected to the processing unit (40);
wherein, the processing unit (40) is also used for calculating and determining a plurality of mechanical parameters in the railway turnout conversion process according to the digital signals; the display screen (70) is used for displaying the mechanical parameters.
4. The wireless-transmission load cell of claim 3, further comprising:
control button (80), control button (80) are a plurality of, and is a plurality of control button (80) all set up on handle portion (20) and with processing unit (40) are connected, control button (80) are used for to the switching of the mechanics parameter that display screen (70) show.
5. The wireless-transmission load cell of claim 4, further comprising:
a connection line (90), through which the processing unit (40) is connected with the terminal device (60) to transmit the digital signal formed by the processing unit (40) to the terminal device (60).
6. The wireless transmission load cell according to claim 5, wherein one end of said connection wire (90) is provided with a first connector (91), said handle portion (20) is provided with a second connector (21), said second connector (21) is connected to said processing unit (40);
the first connector (91) and the second connector (21) are detachably connected so that the processing unit (40) is connected with the terminal device (60) through the connecting line (90).
7. The wireless-transmission load cell of claim 5, further comprising:
a rechargeable battery (100) disposed in the handle portion (20) and connected to the sensing strip (30), the processing unit (40), the wireless communication unit (50), and the display screen (70) to supply power to the sensing strip (30), the processing unit (40), the wireless communication unit (50), and the display screen (70);
wherein the connection line (90) is connected with the rechargeable battery (100) to charge the rechargeable battery (100) by an external charger.
8. The wireless-transmission load cell of claim 7, further comprising:
a wireless charging unit (110) connected to the rechargeable battery (100);
wherein the wireless charging unit (110) is used for charging the rechargeable battery (100) through an external wireless charging device.
9. The wireless transmission load cell according to claim 1, wherein said cylindrical pin (10) comprises:
the induction coils (11) are multiple, and the induction coils (11) are arranged at intervals along the axial direction of the cylindrical pin (10); when the cylindrical pin (10) is inserted into the pin holes of the fork iron (120) and the action rod (130), the induction coils (11) are respectively positioned in the pin holes of the fork iron (120) and the action rod (130);
the induction coil (11) is provided with first tangent planes (12) along two opposite side walls in a first preset diameter direction, the induction coil (11) is provided with second tangent planes (13) along two opposite side walls in a second preset diameter direction, the first preset diameter direction is the acting force induction direction of the induction coil (11), and the first preset diameter direction and the second preset diameter direction are perpendicular to each other;
two force contact areas (14) are formed between each first tangent plane (12) and two adjacent second tangent planes (13), and when the action rod (130) exerts an acting force on the fork-shaped iron (120), the two force contact areas (14) are in contact with the hole walls of the pin holes of the fork-shaped iron (120) or the action rod (130).
10. The wireless transmission load cell according to claim 9, wherein said induction coils (11) are three;
when the cylindrical pin (10) is inserted into the pin holes of the fork iron (120) and the action rod (130), two corresponding force contact areas (14) of the induction coil (11) positioned in the middle are in contact with the hole walls of the pin holes of the action rod (130); four corresponding force contact areas (14) of the two induction coils (11) positioned on two sides are in contact with the hole walls of the pin holes of the fork-shaped iron (120).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022128972.2U CN213455932U (en) | 2020-09-24 | 2020-09-24 | Wireless transmission force transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022128972.2U CN213455932U (en) | 2020-09-24 | 2020-09-24 | Wireless transmission force transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213455932U true CN213455932U (en) | 2021-06-15 |
Family
ID=76326309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022128972.2U Active CN213455932U (en) | 2020-09-24 | 2020-09-24 | Wireless transmission force transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213455932U (en) |
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2020
- 2020-09-24 CN CN202022128972.2U patent/CN213455932U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20211014 Address after: 710000 Room 401, building 3, West ziweishang floor, No. 5, Taibai South Road, Yanta District, Xi'an City, Shaanxi Province Patentee after: Shaanxi luide road and Bridge Technology Co.,Ltd. Address before: Room 10203, 2 / F, unit 1, building 7, Jinshang Mingcheng phase I, 88 Jinye Road, high tech Zone, Xi'an City, Shaanxi Province, 710065 Patentee before: Shaanxi yingtaihe Electronic Technology Co.,Ltd. |
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