CN213902569U - Sensor mounting structure and work machine - Google Patents

Abstract

An embodiment of the utility model provides a sensor mounting structure and operation machinery, wherein, sensor mounting structure includes: a container; a sensor, comprising: the reed pipe extends into the container from the bottom of the container; the floating part is connected with the reed pipe in a sliding way, and the position of the floating part is related to the liquid level in the container; the mounting seat is connected with one end of the reed pipe and located on the outer side of the container, and the mounting seat is connected with the bottom of the container in a sealing mode. In the utility model, the sensor can adopt a common liquid level sensor without changing the structure of the sensor, on one hand, the liquid level sensor is arranged at the bottom of the container in an inverted way, and the liquid allowance in the container is accurately measured; on the other hand, the sensor is simple in structure, is easy to install at the bottoms of containers with different sizes, is convenient to modify in the later period, and is beneficial to improving the universality and expanding the application range; moreover, the influence of the limited installation space on the installation structure is greatly reduced, the wiring harness of the sensor is not easy to interfere, and the wiring harness is favorably fixed.

Description

Sensor mounting structure and work machine

Technical Field

The embodiment of the utility model relates to an operation machinery technical field particularly, relates to a sensor mounting structure and an operation machinery.

Background

In the related art, in order to improve the measurement accuracy of the residual oil at the bottom of the oil tank, the structure of the sensor is changed into a telescopic structure, for example, the improved sensor device has higher cost and lower universality.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

In view of this, a first aspect of the embodiments of the present invention provides a sensor mounting structure.

A second aspect of the embodiments provides a working machine having the above-described sensor mounting structure.

To achieve the above object, an embodiment of the first aspect of the present invention provides a sensor mounting structure, including: a container; a sensor, comprising: the reed switch extends into the container from the bottom of the container; the floating part is connected with the reed pipe in a sliding way, and the position of the floating part is related to the liquid level in the container; the mounting seat is connected with one end of the reed pipe, is positioned on the outer side of the container and is hermetically connected with the bottom of the container.

According to the sensor mounting structure provided by the embodiment of the first aspect of the present invention, the sensor can adopt a common liquid level sensor, and the structure of the sensor does not need to be changed, on one hand, by mounting the sensor at the bottom of the container, when the container is full of liquid, the liquid level height can be higher than the height of the reed pipe, and the floating part does not slide; when the liquid in the container is less and the liquid level is not higher than the reed pipe, the floating part begins to change along with the liquid level. It can be understood that the liquid level sensor is inversely arranged at the bottom of the container, and the residual oil quantity in the oil tank can be accurately measured; on the other hand, the sensor is simple in structure, is easy to install at the bottoms of containers with different sizes, is convenient to modify in the later period, and is beneficial to improving the universality and expanding the application range; moreover, the influence of the limited installation space on the installation structure is greatly reduced, the wiring harness of the sensor is not easy to interfere, and the wiring harness is favorably fixed.

Specifically, the sensor mounting structure includes a container and a sensor. The type of container may be varied, such as: a box body, a cylinder body, a tank body and the like. Specifically, the container may be a water tank, an oil tank, or the like, and an accommodating chamber is provided in the container, and liquid is filled in the accommodating chamber. Further, the sensor comprises a reed switch, a floating part and a mounting seat. The reed switch extends into the container from the bottom of the container, in other words, the reed switch extends into the accommodating cavity through the bottom of the container. The floating part is connected with the reed pipe in a sliding mode, namely the floating part can slide relative to the reed pipe. The position of the float is related to the liquid level in the container, it being understood that the position of the float changes as the liquid level in the container changes. Specifically, the floating part may be a floating ball, and under the buoyancy of the liquid in the container, the relative position of the floating part and the reed pipe changes, that is, the floating part slides relative to the reed pipe, and the processor in the sensor feeds back such information.

Further, the mount pad is located the outside of container, and links to each other with the one end of tongue tube, and specifically, the one side that the mount pad is close to the container offsets with the diapire of container. The mounting seat is connected with the bottom of the container in a sealing mode, and it can be understood that the size of the opening at the bottom of the container needs to be slightly larger than the reed pipe and the floating part because workers need to penetrate one end of the reed pipe through the bottom of the container. Through sealing the mounting seat with the bottom of container, in the use, can not have liquid to flow out from container bottom opening part.

Specifically, the container in the scheme can be a common hydraulic oil tank in engineering machinery, can be manufactured by self or purchased in the market, and has no special requirements on capacity and size. In general, the bottom of the oil tank is provided with an oil drainage port, and the top of the oil tank is provided with a mounting hole of a liquid level sensor. It will be appreciated that the sensor is typically mounted on top of a fuel tank with the mounting seat abutting and sealing against the top wall of the tank, but the volume and size of the tank or other container required in different work machines is not the same, and therefore changing the sensor to a telescopic construction is not versatile, has a narrow range of applications and is costly.

It is worth to say that the sensor in this scheme can be ordinary level sensor, easily purchases in the market, and the low price, easy additional installation or repacking, commonality are strong, and application scope is wider. In the scheme, the sensor is arranged at the bottom of the container, when the container is full of liquid, the liquid level is higher than the reed pipe, and the floating part does not slide; when the liquid in the container is less and the liquid level is not higher than the reed pipe, the floating part begins to change along with the liquid level. It will be appreciated that the amount of residual fuel in the fuel tank can also be accurately measured by mounting the level sensor upside down on the bottom of the container. When the oil quantity in the oil tank changes, the floating ball can slide up and down along the reed pipe along with the change of the liquid level height, so that the output resistance value in the sensor circuit board is changed, and the processor in the sensor calculates the current liquid level height through the collected resistance value. The sensor mounting structure in the scheme is a new mounting mode without changing an oil tank structure and a sensor structure.

Furthermore, the reed pipe can be made of stainless steel materials, the diameter is phi 12mm, the resistance precision is less than +/-1%, the rated power is greater than 100mA, in addition, the length of the reed pipe can be customized according to different requirements, and the specifications of 280mm, 500mm, 650mm, 1000mm and the like can be selected in the current market.

Furthermore, the floating part can be a floating ball, is made of stainless steel materials, and cannot have the defects of rust, bubbles and the like after oil corrosion experiments. The floating ball type oil level sensor has the main function of sensing the change of the oil level in the oil tank, and when the oil level in the oil tank rises or falls, the floating ball slides up and down along the reed pipe smoothly without clamping stagnation. Specifically, the height of the floating ball is 5cm, and the diameter of the floating ball is 32 mm.

When the container is the oil tank, and the sensor is level sensor, the concrete implementation step of sensor installation in this scheme is:

firstly, discharging oil in an oil tank from a bottom oil drainage port to ensure that no residual oil exists in the oil tank;

and secondly, measuring the diameter of an oil drainage opening at the bottom of the oil tank, and ensuring that the diameter of the oil drainage opening is greater than the diameter phi of the floating part by 32mm and is smaller than the size phi of a mounting seat of the sensor by 70 mm. If the diameter of the oil drainage port is too small, proper hole expansion is carried out in the actual installation process according to the field condition, so that the diameter of the expanded oil drainage port is slightly larger than the diameter of the floating ball by 1-2 mm. Of course, the sensor can also be arranged at the position of the bottom of the oil tank, which is not the oil drainage port;

thirdly, after the diameter of the oil drainage port mounting hole meets the requirement, positioning the oil drainage port at a corresponding position at the bottom of the oil tank according to the position and the number of the fixing holes on the sensor mounting seat, and drilling the oil drainage port at the bottom of the oil tank according to the corresponding position and the diameter;

fourthly, punching a sealant on the installation position of the sensor, and adding a sealing washer;

fifthly, the mounting seat of the sensor is placed downwards, the reed switch upwards extends into the oil tank from the bottom of the oil tank, and the situation that the floating ball or the reed switch rubs with the mounting hole wall to damage the sensor in the mounting process is avoided, so that the liquid level detection precision is influenced;

sixthly, the screw rod sequentially penetrates through the liquid level sensor base mounting hole, the sealing washer mounting hole and the oil tank bottom mounting hole and is locked at the end part through a screw cap;

and seventhly, coating an anti-rust layer after the sensor fixing screw, the nut and the gasket are fixed in the oil tank to prevent the sensor fixing screw, the nut and the gasket from being corroded by oil liquid.

Additionally, the utility model provides an above-mentioned technical scheme can also have following additional technical characterstic:

in the above technical solution, the container includes: side coaming plates; the bottom plate is connected with the bottom of the side enclosing plate, the reed pipe penetrates through the bottom plate, and the mounting seat is connected with the bottom plate in a sealing mode.

In this solution, the container comprises side panels and a bottom panel, the bottom panel being connected to the bottom of the side panels. Specifically, the side wall plate and the bottom plate are detachably connected, so that the side wall plate is convenient to mount and dismount; or the bottom plate and the side wall plate are fixedly connected through welding or other modes, so that the production and the processing are convenient; or the bottom plate and the side wall plate are of an integrated structure, and compared with a post-processing mode, the mechanical property is good, and the connection strength is higher.

Further, the tongue tube passes the bottom plate, and specifically, the bottom of container can be from taking the drain mouth, is equipped with the drain mouth on the bottom plate promptly, stretches into the container with the tongue tube by the drain mouth in, this kind of mode of setting directly utilizes the drain mouth, need not other trompil, therefore can install the sensor fast, improves the installation effectiveness. In addition, the reed switch can also extend into the container from a position which is not provided with the drainage port on the bottom plate. Furthermore, the mounting seat is connected with the bottom plate in a sealing mode, namely after the mounting seat and the bottom plate of the container are mounted, liquid in the container cannot flow out from the connecting position of the sensor and the container, and the reliability of the sensor mounting structure is improved.

In the technical scheme, the bottom plate is provided with a discharge port, and the reed pipe extends into the container through the discharge port.

In the technical scheme, the reed pipe can directly extend into the container through the discharge port by arranging the discharge port on the bottom plate. It will be appreciated that the outlet of the container is typically used for draining liquids, and that the outlet is advantageously used as a mounting hole for the sensor to facilitate quick mounting of the sensor.

In the above technical solution, the mount includes: the flange plate is provided with a plurality of first mounting holes and is connected with the bottom plate through a plurality of connecting pieces, and each connecting piece penetrates through the first mounting holes and the bottom plate.

In this technical scheme, the mount pad includes the flange board, and the flange board passes through a plurality of connecting pieces and links to each other with the bottom plate. Furthermore, a plurality of first mounting holes are formed in the flange plate, the number of the connecting pieces is consistent with that of the first mounting holes, and each connecting piece penetrates through the first mounting holes and the bottom plate. Through setting up flange board and a plurality of connecting piece, can be connected the mount pad in the sensor and the bottom plate of container.

It is worth mentioning that the plurality of first mounting holes are arranged in an array on the flange plate, and the distance between two adjacent first mounting holes is the same, so that the pressure on the surface where the flange plate abuts against the bottom plate is ensured to be the same, and the improvement of the connection strength is facilitated.

In the above technical scheme, the bottom plate is provided with a plurality of second mounting holes, the number of the second mounting holes is the same as that of the first mounting holes, and each connecting piece penetrates through the first mounting holes and the second mounting holes.

In the technical scheme, the plurality of second mounting holes are formed in the bottom plate, the number of the second mounting holes is the same as that of the first mounting holes, the connecting piece penetrates through the first mounting holes and the second mounting holes, the flange plate and the bottom plate can be fastened, and then the sensor and the bottom of the container are connected.

It is worth mentioning that the number of the mounting holes and the connecting members can be flexibly set in consideration of the strength of the connection, the cost, and other factors.

In the above technical solution, the connecting member includes: a nut; one end of the screw rod is provided with an end blocking part, one end of the screw rod, which is far away from the end blocking part, sequentially passes through the first mounting hole and the second mounting hole, and the other end of the screw rod, which is far away from the end blocking part, is in threaded connection with the nut; and the sealing elements are arranged between the flange plate and the bottom plate and between the nut and the bottom plate.

In this solution, the connecting piece comprises a nut, a screw and a seal. One end of screw rod is equipped with the end and keeps off the portion, can understand that end keeps off the portion and screw rod formula structure as an organic whole, for the mode of post-processing, mechanical properties is good, and joint strength is higher. Because end fender portion and screw rod formula structure as an organic whole, be favorable to reducing the quantity of spare part, and then can reduce the installation procedure, improve the installation effectiveness. Further, the end of the screw, which is far away from the end blocking part, sequentially passes through the first mounting hole and the second mounting hole, and the end part of the screw is in threaded connection with the nut. It can be understood that the flange plate is tightly attached to the bottom plate by screwing the nut or the screw, so that the connection strength of the flange plate and the bottom plate is ensured.

Furthermore, the sealing element is arranged between the flange plate and the bottom plate, the sealing element is also arranged between the nut and the bottom plate, gaps between the flange plate and the bottom plate and between the nut and the bottom plate are filled through the sealing element, and the sealing property of the sensor connected with the bottom of the container can be improved.

In the above technical solution, the sealing member includes: the sealant is arranged between the flange plate and the bottom plate and between the nut and the bottom plate; and/or a plurality of sealing gaskets, one sealing gasket is arranged between the flange plate and the bottom plate, and the other sealing gasket is arranged between the nut and the bottom plate.

In this solution, the seal comprises a sealing glue and/or a plurality of sealing gaskets. It can be understood that the sealing element only comprises the sealant, the sealant is smeared between the flange plate and the bottom plate and between the nut and the bottom plate, and the gap is filled through the sealant, so that the sealing performance between the flange plate and the bottom plate and between the nut and the bottom plate is improved.

Alternatively, the seal may comprise only a plurality of sealing gaskets, one of which is provided between the flange plate and the base plate and the other of which is provided between the nut and the base plate. Seal ring can adopt rubber materials, possesses good compressibility and corrosion resistance, fastens flange plate and bottom plate through the connecting piece, and the in-process can extrude seal ring, and then can improve the leakproofness between two parts that the surface is crude relatively.

Or the sealing element simultaneously comprises a sealing glue and a plurality of sealing gaskets, and the sealing effect between the flange plate and the bottom plate can be further improved by matching the sealing glue and the sealing gaskets.

In the technical scheme, the connecting piece is provided with a plating layer.

In the technical scheme, the coating is arranged on the connecting piece, so that the corrosion resistance of the connecting piece can be improved, the possibility that the connecting piece is corroded when being soaked in oil for a long time is greatly reduced, and the service life of the connecting piece can be prolonged.

In the above technical solution, the sensor further includes: the signal processing module is arranged in the mounting seat and is electrically connected with the reed switch; and the signal wire is electrically connected with the signal processing module.

In this technical scheme, the sensor is still including locating the signal processing module in the mount pad, and signal processing module can gather, handle, output liquid level signal. Further, the mounting base further comprises an electrical box, the signal processing module is arranged in the electrical box, and the electrical box is formed by injection molding of polypropylene PP materials.

Further, the signal processing module is electrically connected with the reed switch. When the oil quantity in the oil tank changes, the floating ball can slide up and down along the reed pipe along with the height change of the liquid level, and the output resistance value in the signal processing module can change constantly at the moment.

Further, the sensor also comprises a signal wire which is electrically connected with the signal processing module. Specifically, the signal line is used for signal output, and the signal line can be a two-core shielded twisted pair with the length of 150 mm.

An embodiment of the second aspect of the present invention provides a working machine, including: an apparatus body; the sensor mounting structure in any of the above embodiments is provided on the apparatus body.

According to the utility model discloses the embodiment of second aspect provides a working machine, including equipment body and sensor mounting structure. The sensor mounting structure is arranged on the equipment body. Specifically, the working machine may be any kind of construction machine, and the container may be an oil tank, and the amount of remaining oil in the oil tank is accurately measured by a sensor.

In addition, since the working machine includes any sensor mounting structure in the embodiment of the first aspect, any advantageous effect of the embodiment of the first aspect is achieved, and details are not repeated here.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

Fig. 1 shows a schematic view of a sensor mounting structure according to an embodiment of the invention;

fig. 2 shows a schematic structural view of a container according to an embodiment of the invention;

fig. 3 shows a schematic structural diagram of a sensor according to an embodiment of the invention;

fig. 4 shows a schematic structural view of a flange plate according to an embodiment of the invention;

fig. 5 shows a schematic structural view of a container according to another embodiment of the present invention;

fig. 6 shows a schematic structural view of a connector according to an embodiment of the invention;

fig. 7 shows a schematic view of a sensor mounting structure according to another embodiment of the present invention;

fig. 8 shows a schematic configuration of a working machine according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:

100: a sensor mounting structure; 120: a container; 121: side coaming plates; 122: a base plate; 1221: an outlet port; 1222: a second mounting hole; 140: a sensor; 141: a reed switch; 142: a floating part; 143: a mounting seat; 1431: a flange plate; 1432: a first mounting hole; 144: a signal processing module; 145: a signal line; 150: a connecting member; 151: a nut; 152: a screw; 153: an end stop portion; 154: a seal member; 1541: sealing glue; 1542: a sealing gasket; 200: a working machine; 210: the equipment body.

Detailed Description

In order to make the above objects, features and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

A sensor mounting structure 100 and a work machine 200 provided according to some embodiments of the present invention are described below with reference to fig. 1 to 8.

Example one

As shown in fig. 1 and 7, an embodiment of the present invention provides a sensor mounting structure 100 including a container 120 and a sensor 140. The variety of containers 120 may be varied, such as: a box body, a cylinder body, a tank body and the like. Specifically, the container 120 may be a water tank, an oil tank, or the like, and an accommodating chamber is provided in the container 120, and liquid is filled in the accommodating chamber. Further, the sensor 140 includes a reed switch 141, a floating portion 142, and a mount 143. The reed pipe 141 extends into the container 120 from the bottom of the container 120, in other words, the reed pipe 141 extends into the accommodating cavity through the bottom of the container 120. The floating portion 142 is slidably connected to the reed switch 141, i.e., the floating portion 142 is slidable relative to the reed switch 141. The position of the float portion 142 is related to the liquid level in the container 120, and it is understood that the position of the float portion 142 changes as the liquid level in the container 120 changes. Specifically, the floating portion 142 may be a floating ball, and under the buoyancy of the liquid in the container 120, the relative position of the floating portion 142 and the reed pipe 141 changes, that is, the floating portion 142 slides relative to the reed pipe 141, and the processor in the sensor 140 feeds back the information.

Further, the mounting seat 143 is disposed outside the container 120 and connected to one end of the reed pipe 141, and specifically, a side of the mounting seat 143 near the container 120 abuts against a bottom wall of the container 120. The mounting seat 143 is sealingly connected to the bottom of the container 120, and it is understood that the size of the bottom opening of the container 120 needs to be slightly larger than the reed switch 141 and the floating portion 142 because the worker needs to pass one end of the reed switch 141 through the bottom of the container 120. By sealing the mounting seat 143 to the bottom of the container 120, no liquid can flow out of the bottom opening of the container 120 during use.

Specifically, the container 120 in the present scheme may be a common hydraulic oil tank in an engineering machine, and may be made by self or purchased commercially, and has no special requirements on capacity and size. In general, the bottom of the oil tank is provided with an oil drainage port, and the top of the oil tank is provided with a mounting hole of a liquid level sensor. It will be appreciated that the sensor 140 is typically mounted on top of a fuel tank, and the mounting 143 abuts and seals against the top wall of the fuel tank, but the volume and size of the fuel tank or other container 120 required in different work machines is different, and therefore, the sensor 140 is modified to be of a telescopic construction, which is not versatile, narrow in application range, and costly.

It should be noted that the sensor 140 in this embodiment may be a common liquid level sensor, which is easily available in the market, low in cost, easy to install or modify, strong in versatility, and wider in application range. In the present embodiment, by installing the sensor 140 at the bottom of the container 120, when the container 120 is full of liquid, the liquid level will be higher than the height of the reed pipe 141, and the floating part 142 will not slide; when the liquid level in the container 120 is low and the liquid level is not higher than the reed pipe 141, the floating portion 142 starts to vary with the liquid level. It will be appreciated that the level sensor is inverted at the bottom of the container 120 and the amount of remaining fuel in the tank can also be accurately measured. When the oil quantity in the oil tank changes, the floating ball slides up and down along the reed switch 141 along with the change of the liquid level height, so that the output resistance value in the circuit board of the sensor 140 is changed, and the processor in the sensor 140 calculates the current liquid level height through the collected resistance value. The sensor mounting structure 100 in this embodiment is a new mounting method without changing the structure of the fuel tank and the structure of the sensor 140.

Further, the reed pipe 141 can be made of stainless steel, the diameter is phi 12mm, the resistance precision is less than +/-1%, the rated power is greater than 100mA, in addition, the length of the reed pipe 141 can be customized according to different requirements, and several specifications of 280mm, 500mm, 650mm, 1000mm and the like can be selected in the current market.

Further, the floating portion 142 can be a floating ball, and is made of stainless steel, so that the defects of rust, bubbles and the like cannot be caused after an oil corrosion experiment. The floating ball type oil level sensor mainly has the function of sensing the change of the oil level in the oil tank, and when the oil level in the oil tank rises or falls, the floating ball slides up and down along the reed switch 141 smoothly without clamping stagnation. Specifically, the height of the floating ball is 5cm, and the diameter of the floating ball is 32 mm.

When the container 120 is an oil tank and the sensor 140 is a liquid level sensor, the specific implementation steps of the installation of the sensor 140 in the scheme are as follows:

firstly, discharging oil in an oil tank from a bottom oil drainage port to ensure that no residual oil exists in the oil tank;

and secondly, measuring the diameter of an oil drainage opening at the bottom of the oil tank, and ensuring that the diameter of the oil drainage opening is greater than the diameter phi 32mm of the floating part 142 and smaller than the size phi 70mm of the mounting seat 143 of the sensor 140. If the diameter of the oil drainage port is too small, proper hole expansion is carried out in the actual installation process according to the field condition, so that the diameter of the expanded oil drainage port is slightly larger than the diameter of the floating ball by 1-2 mm. Of course, the sensor 140 may also be installed at a position other than the oil drainage port at the bottom of the oil tank;

thirdly, after the diameter of the oil drainage port mounting hole meets the requirement, positioning the oil drainage port at a corresponding position at the bottom of the oil tank according to the position and the number of the fixing holes on the mounting seat 143 of the sensor 140, and drilling the oil drainage port at the bottom of the oil tank according to the corresponding position and the diameter;

fourthly, a sealing rubber 1541 is punched at the installation position of the sensor 140, and a sealing gasket 1542 is added;

fifthly, the mounting seat 143 of the sensor 140 is positioned downwards, the reed switch 141 upwards extends into the oil tank from the bottom of the oil tank, and the situation that the sensor 140 is damaged by friction between a floating ball or the reed switch 141 and the wall of the mounting hole in the mounting process, so that the liquid level detection precision is influenced, is avoided;

sixthly, the screw 152 sequentially passes through the liquid level sensor base mounting hole, the sealing washer 1542 mounting hole and the oil tank bottom mounting hole, and is locked at the end part through a nut;

and seventhly, coating an anti-rust layer after the sensor 140 is fixed in order to prevent the screw 152, the nut 151 and the gasket from being corroded by oil liquid in the oil tank.

In summary, in the present embodiment, the sensor 140 can be a common liquid level sensor, and the structure of the sensor 140 does not need to be changed, on one hand, by installing the sensor 140 at the bottom of the container 120, when the container 120 is full of liquid, the liquid level is higher than the height of the reed pipe 141, and the floating portion 142 does not slide; when the liquid level in the container 120 is low and the liquid level is not higher than the reed pipe 141, the floating portion 142 starts to vary with the liquid level. It can be understood that the liquid level sensor is arranged at the bottom of the container 120 in an inverted mode, and the amount of the residual oil in the oil tank can be measured accurately; on the other hand, the structure is simple, the sensor 140 is easy to be arranged at the bottoms of the containers 120 with different sizes, and the later modification is convenient, so that the universality is improved, and the application range is expanded; moreover, the influence of the limited installation space on the installation structure is greatly reduced, and the wiring harness of the sensor 140 is not easy to interfere, so that the wiring harness is favorably fixed.

Example two

As shown in fig. 1, 2, 5 and 7, in the first embodiment, the container 120 further includes a side wall 121 and a bottom plate 122, and the bottom plate 122 is connected to the bottom of the side wall 121. Specifically, the side wall plates 121 and the bottom plate 122 are detachably connected, so that the installation and the disassembly are convenient; or, the bottom plate 122 and the side wall plate 121 are fixedly connected by welding or other methods, so that the production and processing are convenient; or, the bottom plate 122 and the side wall plate 121 are of an integrated structure, and compared with a post-processing mode, the mechanical property is good, and the connection strength is higher.

Further, the reed pipe 141 penetrates through the bottom plate 122, specifically, the bottom of the container 120 can be provided with a drain port, that is, the drain port is arranged on the bottom plate 122, the reed pipe 141 extends into the container 120 from the drain port, and the drain port is directly utilized in the arrangement mode without additional holes, so that the sensor 140 can be rapidly installed, and the installation efficiency is improved. In addition, the reed switch 141 may also extend into the container 120 from a non-vent location on the bottom plate 122. Furthermore, the mounting seat 143 is hermetically connected to the bottom plate 122, that is, after the mounting seat 143 is mounted on the bottom plate 122 of the container 120, the liquid in the container 120 does not flow out from the connection position between the sensor 140 and the container 120, which is beneficial to improving the reliability of the sensor mounting structure 100.

EXAMPLE III

As shown in fig. 2, 5 and 7, in addition to the second embodiment, a discharge port 1221 is further provided on the bottom plate 122, where the discharge port 1221 is a discharge port. By providing the outlet 1221 on the bottom plate 122, the reed switch 141 can be directly inserted into the container 120 through the outlet 1221. It will be appreciated that the outlet 1221 of the container 120 is typically used for draining liquids, and that the outlet 1221 is provided as a mounting hole for the sensor 140 in this embodiment, which facilitates quick mounting of the sensor 140.

Example four

As shown in fig. 1, 3, 4 and 6, in the second embodiment, the mounting seat 143 further includes a flange plate 1431, and the flange plate 1431 is connected to the bottom plate 122 through a plurality of connectors 150. Further, a plurality of first mounting holes 1432 are provided on the flange plate 1431, the number of the connecting members 150 is the same as the number of the first mounting holes 1432, and each connecting member 150 passes through the first mounting hole 1432 and the bottom plate 122. The mounting seat 143 of the sensor 140 can be connected to the bottom plate 122 of the container 120 by providing the flange plate 1431 and the plurality of connecting members 150.

It should be noted that the plurality of first mounting holes 1432 are arranged in an array on the flange plate 1431, and the distance between two adjacent first mounting holes 1432 is the same, so as to ensure that the pressure applied to the surface of the flange plate 1431, which abuts against the bottom plate 122, is the same, which is beneficial to improving the connection strength.

Further, a plurality of second mounting holes 1222 are disposed on the bottom plate 122, and the number of the second mounting holes 1222 is the same as the number of the first mounting holes 1432. The flange plate 1431 and the bottom plate 122 can be fastened by inserting the connection member 150 through the first mounting hole 1432 and the second mounting hole 1222, so as to connect the sensor 140 and the bottom of the container 120.

It is noted that the number of the mounting holes and the connecting members 150 is flexibly set in consideration of the strength of connection, cost, and other factors.

Further, the connection 150 includes a nut 151, a screw 152, and a seal 154. One end of the screw 152 is provided with the end stop portion 153, and it can be understood that the end stop portion 153 and the screw 152 are of an integrated structure, so that compared with a post-processing mode, the mechanical property is good, and the connection strength is higher. Because end stop 153 and screw rod 152 formula structure as an organic whole, be favorable to reducing the quantity of spare part, and then can reduce the installation procedure, improve the installation effectiveness. Further, one end of the screw 152, which is far away from the end stop 153, sequentially passes through the first mounting hole 1432 and the second mounting hole 1222, and the end of the screw 152 is threadedly connected with the nut 151. It can be understood that the flange plate 1431 is tightly attached to the bottom plate 122 by screwing the nut 151 or the screw 152, so as to ensure the connection strength of the two.

Further, the sealing member 154 is disposed between the flange plate 1431 and the bottom plate 122, and the sealing member 154 is further disposed between the nut 151 and the bottom plate 122, so that the sealing property of the connection between the sensor 140 and the bottom of the container 120 can be improved by filling up the gap between the flange plate 1431 and the bottom plate 122 and the gap between the nut 151 and the bottom plate 122 with the sealing member 154.

In another embodiment, the connecting member 150 is provided with a plating layer. Through set up the cladding material on connecting piece 150, can improve the corrosion-resistant performance of connecting piece 150, greatly reduced connecting piece 150 soak the possibility corroded in fluid for a long time, and then can improve connecting piece 150's life.

EXAMPLE five

As shown in fig. 5 and 6, in the fourth embodiment, the sealing member 154 further includes a sealing rubber 1541 and/or a plurality of sealing gaskets 1542. It can be understood that the sealing member 154 only includes the sealing agent 1541, the sealing agent 1541 is applied between the flange plate 1431 and the bottom plate 122 and between the nut 151 and the bottom plate 122, and the gap is filled by the sealing agent 1541, so as to improve the sealing performance between the flange plate 1431 and the bottom plate 122 and between the nut 151 and the bottom plate 122.

Alternatively, the seal 154 includes only a plurality of sealing gaskets 1542, wherein one sealing gasket 1542 is disposed between the flange plate 1431 and the base plate 122, and the other sealing gasket 1542 is disposed between the nut 151 and the base plate 122. The sealing washer 1542 may be made of a rubber material, and has good compressibility and corrosion resistance, and the flange plate 1431 and the bottom plate 122 are fastened through the connecting member 150, so that the sealing washer 1542 is squeezed in the process, and the sealing performance between two parts with relatively rough surfaces can be improved.

Alternatively, the sealing member 154 includes the sealing member 1541 and the plurality of sealing gaskets 1542, and the sealing effect between the flange plate 1431 and the bottom plate 122 can be further improved by using the sealing member 1541 and the sealing gaskets 1542 in cooperation with each other.

EXAMPLE six

As shown in fig. 3, on the basis of the first embodiment, the sensor 140 further includes a signal processing module 144 disposed in the mounting seat 143, and the signal processing module 144 can collect, process and output the liquid level signal. Further, the mounting base 143 further includes an electrical box, the signal processing module 144 is disposed in the electrical box, and the electrical box is formed by injection molding of polypropylene PP material.

Further, the signal processing module 144 is electrically connected to the reed switch 141. When the oil amount in the oil tank changes, the floating ball slides up and down along the reed pipe 141 along with the height change of the liquid level, and the output resistance value in the signal processing module 144 changes continuously.

Further, the sensor 140 further includes a signal line 145, and the signal line 145 is electrically connected to the signal processing module 144. Specifically, the signal line 145 is used for signal output, and the signal line 145 may be a two-core shielded twisted pair cable having a length of 150 mm.

EXAMPLE seven

As shown in fig. 8, a working machine 200 according to an embodiment of the present invention includes an apparatus body 210 and the sensor mounting structure 100 according to any of the embodiments described above. The sensor mounting structure 100 is provided on the apparatus body 210. Specifically, the work machine 200 may be any type of work machine, and the container 120 may be a fuel tank, and the amount of fuel remaining in the fuel tank is accurately measured by the sensor 140.

According to the embodiment of the sensor mounting structure and the operation machine of the utility model, the sensor can adopt a common liquid level sensor without changing the structure of the sensor, on one hand, by mounting the sensor at the bottom of the container, when the liquid in the container is full, the liquid level height can be higher than the height of the reed pipe, and the floating part does not slide; when the liquid in the container is less and the liquid level is not higher than the reed pipe, the floating part begins to change along with the liquid level. It can be understood that the liquid level sensor is inversely arranged at the bottom of the container, and the residual oil quantity in the oil tank can be accurately measured; on the other hand, the sensor is simple in structure, is easy to install at the bottoms of containers with different sizes, is convenient to modify in the later period, and is beneficial to improving the universality and expanding the application range; moreover, the influence of the limited installation space on the installation structure is greatly reduced, the wiring harness of the sensor is not easy to interfere, and the wiring harness is favorably fixed.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to 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 sensor mounting structure (100), comprising:

a container (120);

a sensor (140) comprising:

the reed switch (141), the reed switch (141) stretches into the container (120) from the bottom of the container (120);

a float (142), the float (142) being slidably connected to the reed pipe (141), the position of the float (142) being related to the liquid level within the container (120);

the mounting seat (143) is connected with one end of the reed pipe (141), the mounting seat (143) is located on the outer side of the container (120), and the mounting seat (143) is connected with the bottom of the container (120) in a sealing mode.

2. The sensor mounting structure (100) according to claim 1, wherein the container (120) includes:

a side panel (121);

a bottom plate (122), wherein the bottom plate (122) is connected with the bottom of the side enclosing plate (121),

the reed pipe (141) penetrates through the bottom plate (122), and the mounting seat (143) is connected with the bottom plate (122) in a sealing mode.

3. The sensor mounting structure (100) according to claim 2, wherein the bottom plate (122) is provided with a discharge port (1221), and the reed pipe (141) protrudes into the container (120) through the discharge port (1221).

4. The sensor mounting structure (100) according to claim 2, wherein the mounting seat (143) includes:

the flange plate (1431) is provided with a plurality of first mounting holes (1432), the flange plate (1431) is connected with the bottom plate (122) through a plurality of connecting pieces (150), and each connecting piece (150) penetrates through the first mounting hole (1432) and the bottom plate (122).

5. The sensor mounting structure (100) according to claim 4, wherein a plurality of second mounting holes (1222) are provided on the base plate (122), the number of the second mounting holes (1222) is the same as the number of the first mounting holes (1432), and each of the connectors (150) passes through the first mounting hole (1432) and the second mounting hole (1222).

6. The sensor mounting structure (100) according to claim 5, wherein the connector (150) includes:

a nut (151);

one end of the screw rod (152) is provided with an end blocking part (153), one end, far away from the end blocking part (153), of the screw rod (152) sequentially penetrates through the first mounting hole (1432) and the second mounting hole (1222), and one end, far away from the end blocking part (153), of the screw rod (152) is in threaded connection with the nut (151);

a seal (154), the seal (154) being disposed between the flange plate (1431) and the base plate (122) and between the nut (151) and the base plate (122).

7. The sensor mounting structure (100) of claim 6, wherein the seal (154) comprises:

the sealing glue (1541), the sealing glue (1541) is arranged between the flange plate (1431) and the bottom plate (122) and between the nut (151) and the bottom plate (122); and/or

A plurality of sealing gaskets (1542), one sealing gasket (1542) being arranged between the flange plate (1431) and the base plate (122), the other sealing gasket (1542) being arranged between the nut (151) and the base plate (122).

8. The sensor mounting structure (100) according to claim 4, wherein the connecting member (150) is provided with a plating layer.

9. The sensor mounting structure (100) according to claim 1, wherein the sensor (140) further comprises:

the signal processing module (144) is arranged in the mounting seat (143), and the signal processing module (144) is electrically connected with the reed switch (141);

a signal line (145), the signal line (145) being electrically connected with the signal processing module (144).

10. A work machine (200), comprising:

an apparatus body (210);

the sensor mounting structure (100) according to any one of claims 1 to 9, provided on the apparatus body (210).

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