CN208982404U

CN208982404U - Stroke sensor

Info

Publication number: CN208982404U
Application number: CN201821930424.8U
Authority: CN
Inventors: 王燕
Original assignee: Hubei Baluf Electronic Technology Co Ltd
Current assignee: Hubei Baluf Electronic Technology Co Ltd
Priority date: 2018-11-22
Filing date: 2018-11-22
Publication date: 2019-06-14
Anticipated expiration: 2028-11-22

Abstract

The utility model belongs to sensor technical field, in particular stroke sensor, including sensor main body, connector is fixed on the appearance wall of the sensor main body, one end of the connector is fixed with signal transmission wire, the side of the sensor main body is fixed with link block, and the side of the sensor main body is located on the appearance wall of the link block and is fixed with rubber ring, is fixed with the first measuring rod at the side center of the link block；By offering accommodating groove in the inside of the first measuring rod, the second measuring rod is connected in the internal slide of accommodating groove simultaneously, second measuring rod can be pulled out to the detection so as to realize the motion profile to the oil cylinder progress fuel oil of different size machinery, rubber sheet gasket is fixed in the inside of accommodating groove simultaneously, limited block is fixed in the inside that one end of the second measuring rod is located at accommodating groove, it is fixed with multiple salient points on limited block, the second measuring rod can be fixed by the frictional force of salient point and rubber sheet gasket.

Description

Stroke sensor

Technical field

The utility model belongs to sensor technical field, and in particular to stroke sensor.

Background technique

Sensor is a kind of detection device, can experience measured information, and the information that can will be experienced, by a set pattern Rule is for conversion into electric signal or the information output of other required forms, to meet transmission, processing, storage, the display, record of information With control etc. require, with the fast development of modern science and technology level, sensor is applied by more and more fields, is sensed simultaneously The type of device is also more and more, stroke sensor be exactly it is one such, be mainly used for record object movement, stroke sensor A main utilization is used in mechanical oil cylinder.

Existing technology has the following problems:

1, existing stroke sensor is easy to use when the motion profile to the fuel oil inside oil cylinder detects Person intuitively observes the surplus of fuel oil, but the various while not of uniform size of the type of existing machinery leads to mechanical oil cylinder Size is also different, and the length of the measuring rod of existing stroke sensor is certain, is not easy to the combustion inside biggish oil cylinder It is detected oily track；

2, existing stroke sensor when in use, is detected by movement of the float on measuring rod The motion profile of fuel oil, and the float on existing stroke sensor is typically directly slided on measuring rod, thus Cause the increased friction of float and measuring rod to cause to generate heat between float and measuring rod, stroke sensor is easy to cause to be examined There is the generation of the case where error in the data measured.

Utility model content

To solve the problems mentioned above in the background art.The utility model provides stroke sensor, and having can be right Fuel oil inside mechanical oil cylinder of different sizes is detected and be can reduce the friction between float and measuring rod to keep away There is detection data and the characteristics of the case where error occurs in no-sensor.

To achieve the above object, the utility model provides the following technical solutions: stroke sensor, including sensor main body, Connector is fixed on the appearance wall of the sensor main body, one end of the connector is fixed with signal transmission wire, described The side of sensor main body is fixed with link block, and the side of the sensor main body is located on the appearance wall of the link block admittedly Surely there is rubber ring, the first measuring rod is fixed at the side center of the link block, one end of first measuring rod is fixed with Position-limit mechanism, and float is slidably connected on the appearance wall of first measuring rod, the inside of first measuring rod offers Accommodating groove, the internal slide of the accommodating groove are connected with the second measuring rod, and the receipts are extended in one end of second measuring rod Slot of receiving is fixed with block, and the other end of second measuring rod is located at the inside of the accommodating groove and is fixed with limited block, described It is fixed with multiple salient points on the lateral wall of limited block, rubber sheet gasket, the limited block are fixed on the inner surface wall of the accommodating groove Appearance wall and the inner surface wall of the rubber sheet gasket fit closely.

Further, the section of the position-limit mechanism be a kind of intilted plate structure, and the position-limit mechanism with Angle formed by first measuring rod is 120 degree.

Further, it is rotatably connected to cover board on the appearance wall of the connector, is fixed in the rear surface of the cover board Sealing ring, and the first magnet is fixed in the rear surface of the cover board, the thickness of first magnet and the thickness of the sealing ring It spends equal, the second magnet is fixed on the appearance wall of the connector, first magnet is corresponding with second magnet.

Further, the side cross-sectional of the block and the float is a kind of round, and the outer diameter of the block Greater than the internal diameter of the float.

Further, the float is made of a kind of small highstrenghtpiston's material of the density of density ratio vehicle fuel.

Further, placing groove is symmetrically offered on the inner surface wall of the float, the inside of two placing grooves is solid Surely there is a shaft, and the inside of two placing grooves passes through the shaft and is rotatably connected to pulley, two placing grooves Inner surface wall symmetrically opens up fluted, and the inside of the groove is equipped with adjustable spring, and the both ends of the shaft all extend to described recessed The inside of slot, one end of the adjustable spring are fixedly connected with the inner surface wall of the groove, and the other end of the adjustable spring It is fixedly connected with the appearance wall for the shaft for extending to the inside grooves.

Further, the outer diameter of the cover board is greater than the internal diameter of the connector, and the internal diameter of the sealing ring is also greater than institute State the internal diameter of connector.

Compared with prior art, the utility model has the beneficial effects that

1, the utility model, by offering accommodating groove in the inside of the first measuring rod, and meanwhile it is sliding in the inside of accommodating groove It is dynamic to be connected with the second measuring rod, the second measuring rod can be pulled out so as to realize that the oil cylinder to different size machinery fires The detection of the motion profile of oil, while it being fixed with rubber sheet gasket in the inside of accommodating groove, it is located in one end of the second measuring rod and receives Receiving the inside of slot is fixed with limited block, and multiple salient points are fixed on limited block, can be with by the frictional force of salient point and rubber sheet gasket Second measuring rod is fixed, while in the fixed limited position mechanism in one end of the first measuring rod, it can be to avoid the second measuring rod It is pulled out from the first measuring rod.

2, the utility model, by symmetrically offering placing groove on the inner surface wall of float, while in two placing grooves Inside is rotatably connected to pulley by shaft, so as to reduce the friction between float and measuring rod so as to avoid friction The heat of generation is easy to impact the precision of sensor the situation for the data inaccuracy for leading to detection, and works as and move to not When on same measuring rod, pulley can be popped up or be pressed into convenient for float different by the adjustable spring of inside grooves It is slided on measuring rod.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the schematic diagram of internal structure of the utility model.

Fig. 3 is the cross section structure schematic diagram of float in the utility model.

In figure: 1- sensor main body, 2- connector, 3- signal transmission wire, the first measuring rod of 4-, 5- float, 6- limit Mechanism, 7- block, the second measuring rod of 8-, 9- link block, 10- rubber ring, the first magnet of 11-, 12- cover board, 13- sealing ring, 14- Accommodating groove, 15- rubber sheet gasket, 16- limited block, 17- salient point, the second magnet of 18-, 19- placing groove, 20- adjustable spring, 21- are recessed Slot, 22- shaft, 23- pulley.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment 1

Please refer to Fig. 1-3, the utility model the following technical schemes are provided:

Stroke sensor, including sensor main body 1 are fixed with connector 2, connector 2 on the appearance wall of sensor main body 1 One end be fixed with signal transmission wire 3, the side of sensor main body 1 is fixed with link block 9, and the side of sensor main body 1 It is fixed with rubber ring 10 on the appearance wall of link block 9, is fixed with the first measuring rod 4 at the side center of link block 9, first The fixed limited position mechanism 6 in one end of measuring rod 4, and float 5 is slidably connected on the appearance wall of the first measuring rod 4, the first measurement The inside of bar 4 offers accommodating groove 14, and the internal slide of accommodating groove 14 is connected with the second measuring rod 8, one end of the second measuring rod 8 Extend accommodating groove 14 and be fixed with block 7, and the other end of the second measuring rod 8 is located at the inside of accommodating groove 14 and is fixed with limited block 16, multiple salient points 17 are fixed on the lateral wall of limited block 16, rubber sheet gasket 15 is fixed on the inner surface wall of accommodating groove 14, are limited The appearance wall and the inner surface wall of rubber sheet gasket 15 of block 16 fit closely, by the second measuring rod 8 is pulled out from accommodating groove 14 from And the motion profile that the fuel oil inside the oil cylinder to different size machinery may be implemented measures, while by outside limited block 16 The frictional force between rubber sheet gasket 15 on 14 inner surface wall of multiple salient points 17 on side wall and accommodating groove by second so as to surveying Gauge rod 8 is fixed, and by between limited block 16 and position-limit mechanism 6 think and cooperate thus avoid the second measuring rod 8 from The case where being pulled out in accommodating groove 14.

Specifically, the section of position-limit mechanism 6 is a kind of intilted plate structure, and position-limit mechanism 6 and first measures Angle formed by bar 4 is 120 degree, by the mutual cooperation between intilted position-limit mechanism 6 and limited block 16 so as to The case where pulling out the second measuring rod 8 from accommodating groove 14 is avoided, and position-limit mechanism 6 and the first measuring rod 4 first form.

Specifically, being rotatably connected to cover board 12 on the appearance wall of connector 2, sealing ring is fixed in the rear surface of cover board 12 13, and the first magnet 11 is fixed in the rear surface of cover board 12, the thickness of the first magnet 11 is equal with the thickness of sealing ring 13, even The second magnet 18 is fixed on the appearance wall of connector 2, the first magnet 11 is corresponding with the second magnet 18, does not have when on connector 2 When connection signal transfer wire 3, can by the mutual attraction between the first magnet 11 and the second magnet 18 so as to Cover board 12 is firmly fixed in the front surface of early connector 2, and plays the role of protection to connector 2, while after cover board 12 Sealing ring 13 on surface can stop dust and moisture in outside air to enter in connector 2 to pass in connection signal The damage of connector 2 is caused when transporting line 3, and cover board 12 is a kind of plastic material of high intensity, sealing ring 13 is one The soft rubber material of kind.

Specifically, the side cross-sectional of block 7 and float 5 is a kind of round, and the outer diameter of block 7 is greater than float 5 Internal diameter can be slid from stroke sensor to avoid float 5 by the blocking of block 7, be thought so that sensor be caused to can't detect The data wanted, and block 7 is a kind of metal material.

Specifically, float 5 is made of a kind of small highstrenghtpiston's material of the density of density ratio vehicle fuel, convenient for passing through Stroke sensor detects the motion profile of the fuel oil inside oil cylinder, while the density of float 5 being avoided to be greater than the close of fuel oil Degree causes sensor to can't detect data required for user, to cause the inconvenient for use of sensor.

Specifically, symmetrically offering placing groove 19 on the inner surface wall of float 5, the inside of two placing grooves 19 is respectively and fixedly provided with axis Bar 22, and the inside of two placing grooves 19 passes through shaft 22 and is rotatably connected to pulley 23, the inner surface wall pair of two placing grooves 19 Title opens up fluted 21, and the inside of groove 21 is equipped with adjustable spring 20, and the both ends of shaft 22 all extend to the inside of groove 21, stretch One end of contracting spring 20 is fixedly connected with the inner surface wall of groove 21, and the other end of adjustable spring 20 and is extended to inside groove 21 The appearance wall of shaft 22 be fixedly connected, drive float 5 to slide on the first measuring rod 4 and the second measuring rod 8 by pulley 23 So as to reduce the friction between float 5 and measuring rod and then can reduce the attempted heat that rubs, friction is avoided to be produced Raw heat leads to the accuracy decline of sensor so as to cause the data inaccuracy that detected, while by inside groove 21 Adjustable spring 20 can slide the elastic force of shaft 22 in order to pulley 23 on different measuring rods, and shaft 22 is one Kind metal material, pulley 23 are a kind of metal material that appearance wall is smooth.

Specifically, the outer diameter of cover board 12 is greater than the internal diameter of connector 2, the internal diameter of sealing ring 13 is also greater than in connector 2 Diameter, by the mutual cooperation between cover board 12 and sealing ring 13 so as to the connector 2 to no connection signal transfer wire 3 It is protected, dust and moisture when connector 2 is without connection signal transfer wire 3 in outside air is avoided to connect It is accumulated first 2 inside.

The working principle and process for using of the utility model: the utility model when in use can be by the second measuring rod 8 detect from pull-out in accommodating groove 14 so as to the motion profile of the fuel oil inside the oil cylinder to different size machinery, together When pass through the rubber sheet gasket on multiple salient points 17 on the limited block 16 on one end of the second measuring rod 8 and 14 inner surface wall of accommodating groove Frictional force between 15 passes through between limited block 16 and position-limit mechanism 6 so as to which the second measuring rod 8 to be fixed The case where mutual cooperation can be pulled out from accommodating groove 14 to avoid the second measuring rod 8, and the block 7 on the second measuring rod 8 can It is slid from stroke sensor when movement to avoid float 5, while interior table when float 5 slides on measuring rod Pulley 23 in wall placing groove 19 can reduce the friction between float 5 and measuring rod so as to reduce heat caused by friction Amount, the heat for avoiding friction from generating impact the precision of sensor, while being moved on different measuring rods when float 5 When pulley 23 can be popped up or be pressed so as to realize by elastic force of the adjustable spring 20 inside groove 21 to shaft 22 Enter and then is slided on the first measuring rod 4 and the second measuring rod 8 convenient for float 5.

Finally, it should be noted that being not limited to the foregoing is merely the further embodiment of the utility model The utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For member, it is still possible to modify the technical solutions described in the foregoing embodiments, or special to part of technology Sign is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims

1. stroke sensor, including sensor main body (1), it is characterised in that: fixed on the appearance wall of the sensor main body (1) Have connector (2), one end of the connector (2) is fixed with signal transmission wire (3), the side of the sensor main body (1) It is fixed with link block (9), and the side of the sensor main body (1) is located on the appearance wall of the link block (9) and is fixed with rubber Cushion rubber (10) is fixed with the first measuring rod (4) at the side center of the link block (9), one end of first measuring rod (4) Fixed limited position mechanism (6), and float (5) are slidably connected on the appearance wall of first measuring rod (4), first measurement The inside of bar (4) offers accommodating groove (14), and the internal slide of the accommodating groove (14) is connected with the second measuring rod (8), described One end of second measuring rod (8) is extended the accommodating groove (14) and is fixed with block (7), and second measuring rod (8) is another The inside that one end is located at the accommodating groove (14) is fixed with limited block (16), is fixed on the lateral wall of the limited block (16) more A salient point (17) is fixed with rubber sheet gasket (15) on the inner surface wall of the accommodating groove (14), the appearance wall of the limited block (16) It is fitted closely with the inner surface wall of the rubber sheet gasket (15).

2. stroke sensor according to claim 1, it is characterised in that: the section of the position-limit mechanism (6) be it is a kind of to Tilted plate structure, and angle formed by the position-limit mechanism (6) and first measuring rod (4) is 120 degree.

3. stroke sensor according to claim 1, it is characterised in that: the company of rotation on the appearance wall of the connector (2) It is connected to cover board (12), is fixed with sealing ring (13) in the rear surface of the cover board (12), and in the rear surface of the cover board (12) It is fixed with the first magnet (11), the thickness of first magnet (11) is equal with the thickness of the sealing ring (13), the connection It is fixed with the second magnet (18) on the appearance wall of head (2), first magnet (11) is corresponding with the second magnet (18).

4. stroke sensor according to claim 1, it is characterised in that: the side view of the block (7) and the float (5) Section is a kind of round, and the outer diameter of the block (7) is greater than the internal diameter of the float (5).

5. stroke sensor according to claim 1, it is characterised in that: the float (5) is a kind of combustion of density ratio automobile Highstrenghtpiston's material that the density of oil is small is made.

6. stroke sensor according to claim 1, it is characterised in that: symmetrically opened up on the inner surface wall of the float (5) Having placing groove (19), the inside of two placing grooves (19) is respectively and fixedly provided with shaft (22), and two placing grooves (19) Internal to be rotatably connected to pulley (23) by the shaft (22), the inner surface wall of two placing grooves (19) symmetrically offers The inside of groove (21), the groove (21) is equipped with adjustable spring (20), and the both ends of the shaft (22) all extend to described recessed One end of the inside of slot (21), the adjustable spring (20) is fixedly connected with the inner surface wall of the groove (21), and described flexible The appearance wall of the other end of spring (20) shaft (22) internal with the groove (21) is extended to is fixedly connected.

7. stroke sensor according to claim 3, it is characterised in that: the outer diameter of the cover board (12) is greater than the connection The internal diameter of head (2), the internal diameter of the internal diameter of the sealing ring (13) also greater than the connector (2).