CN112781706A

CN112781706A - Electronic weighing support wheel

Info

Publication number: CN112781706A
Application number: CN202110137680.1A
Authority: CN
Inventors: 丁刚
Original assignee: Qingdao Donglu Technology Co ltd
Current assignee: Qingdao Donglu Technology Co ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2021-05-11

Abstract

The invention provides an electronic weighing support wheel which comprises an outer pipe, an inner pipe, a wheel carrier, a roller, a screw rod, a spoke type pressure sensor and a digital display instrument, wherein the inner pipe can be arranged in the outer pipe in a sliding mode along the axial direction, the lower end of the inner pipe penetrates out of the outer pipe and is fixedly connected with the wheel carrier, the roller is rotatably arranged on the wheel carrier, a screw nut is fixedly arranged on the inner pipe, the screw rod is arranged in the screw nut through threads, a step surface is arranged at the top end of the screw rod, a thrust bearing and the spoke type pressure sensor are sequentially arranged on the step surface, through holes for the screw rod to penetrate through are formed in the thrust bearing and the spoke type pressure sensor, a handle assembly is connected to the top of the screw rod penetrating out of the spoke type pressure sensor, the spoke type pressure sensor is fixedly connected with the. The invention improves the weighing precision, range and the like, is convenient for users to read and improves the product experience of the users.

Description

Electronic weighing support wheel

Technical Field

The invention relates to an electronic weighing support wheel, belonging to the technical field.

Background

The caster has wide application, and can be widely used for medical racks, industrial carts, supermarket carts, furniture casters and the like. But when the truckle that some special use needs used, for example when the shallow loaded the goods, if can calculate the weight of the goods of loading on the shallow fast, just can make things convenient for people to learn the goods weight greatly, can know also can reduce the weight of adjustment goods according to the weight of knowing when can crushing the truckle under the overweight condition of loaded thing moreover to increase the life of truckle.

But present support of weighing is mostly mechanical spring formula jack of weighing, and the precision of weighing is low, the scope is little to inconvenient user reads numerical value.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an electronic weighing support wheel, which at least solves the technical problems in the background art, improves the weighing precision, range and the like, is convenient for users to read, improves the product experience of the users, and simultaneously adds new product functions which cannot be realized mechanically, such as weight measurement and zero setting, peak load retention and the like.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an electronic weighing support wheel, includes outer tube, inner tube, wheel carrier, gyro wheel, lead screw, spoke formula pressure sensor and digital display instrument, the inner tube can be followed endwise slip and installed in the outer tube, the lower extreme of inner tube wear out the outer tube and with wheel carrier fixed connection, the gyro wheel is rotatably installed on the wheel carrier, inner tube fixed mounting has the screw, the lead screw passes through threaded mounting in the screw, the top of lead screw is provided with the step face, the step face on install thrust bearing and spoke formula pressure sensor in proper order, thrust bearing and spoke formula pressure sensor all are provided with the through-hole that supplies the lead screw to pass, the top that the lead screw worn out spoke formula pressure sensor's part is connected with the hand (hold) subassembly, spoke formula pressure sensor and outer tube fixed connection, spoke formula pressure sensor and digital display instrument electric connection.

Optionally, the roller is rotatably connected with the wheel frame through an axle.

Optionally, the wheel frame is welded to the inner tube.

Preferably, the screw nut is fixed on the top of the inner tube, and the screw rod is connected with the screw nut through T-shaped threads.

Preferably, the step surface is sequentially provided with a bearing gasket, a thrust bearing, a sensor gasket and a spoke type pressure sensor. The spoke type pressure sensor is fixedly connected with the outer pipe through the inner hexagon bolt and is in contact with the sensor gasket.

Preferably, the digital display instrument is sleeved on the outer tube, fixed by an inner hexagon bolt and electrically connected with the spoke type pressure sensor through a lead.

Preferably, the top of the screw rod is connected with the handle assembly through a plastic cover and a spring pin, the plastic cover is buckled on the top of the spoke type pressure sensor, and the spring pin is connected with the plastic cover, the screw rod and the handle assembly.

When the product was used, outside trailer passed through the checkpost and is fixed the outer tube, shakes the hand (hold) subassembly through clockwise or anticlockwise this moment, can control the lift of inner tube, and then the lift of control gyro wheel. When the roller contacts the ground, the product can be subjected to pressure load from an external trailer, the pressure can be transmitted to the spoke type pressure sensor through the roller, the wheel frame, the inner pipe, the screw nut, the screw rod, the bearing gasket, the thrust bearing and the sensor gasket in sequence, so that the pressure sensor generates deformation to change the sent electric signal, and the electric signal is transmitted to the digital display instrument through the lead wire to directly show the current load weight.

The invention has the beneficial effects that:

the invention can more conveniently obtain more accurate reading, simplifies the product structure, improves the product weighing precision and enables the user to more conveniently read. Besides real-time load measurement, the digital display instrument is adopted to increase the functions of load zero setting and peak load retention. The function of preserving the peak load is such that the meter will only display the value at the moment when the load is maximum during the weighing process and remain unchanged for the user's needs.

Spoke formula pressure sensor passes through bolted connection to be fixed in the outer tube upper end, and its interior circle force measuring district passes through the gasket and is connected with thrust bearing, and when the support wheel began to bear the load, pressure passes through the gyro wheel, the wheel carrier, the lead screw, thrust bearing transmits spoke formula pressure sensor, after pressure sensor received pressure, it can produce corresponding signal of telecommunication, give digital display instrument with signal transmission through the wire, the load of weighing will real-time demonstration come out, and its precision can reach 0.01 KG.

Besides real-time display of the load weight, the digital display instrument also has a peak value reservation function, and the instrument only displays the value of the maximum load in the weighing process at one moment and keeps the value unchanged for the user.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic view of an electronic weighing support wheel of the present invention;

FIG. 2 is a cross-sectional view of a connection structure of an outer tube, an inner tube, a screw rod and other components of an electronic weighing support wheel according to the present invention;

fig. 3 is a schematic perspective view of an electronic weighing support wheel according to the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are provided for the purpose of giving a thorough understanding of the present disclosure.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and are not to be construed as limiting the present invention, which is for purposes of illustration only and is not intended to be in the sole embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1-3, the present invention provides a technical solution: an electronic weighing support wheel comprises an outer tube 1, an inner tube 2, a wheel carrier 31, a roller 32, a screw rod 4, a spoke type pressure sensor 5 and a digital display instrument 6, the inner tube 2 is arranged in the outer tube 1 in an axially sliding way, the lower end of the inner tube 2 penetrates out of the outer tube 1 and is fixedly connected with a wheel carrier 31, a roller 32 is rotatably arranged on the wheel carrier 31, the inner tube 2 is fixedly provided with a screw 7, a screw rod 4 is arranged in the screw 7 through threads, the top end of the screw rod 4 is provided with a step surface 8, the step surface 8 on install thrust bearing 9 and spoke type pressure sensor 5 in proper order, thrust bearing 9 and spoke type pressure sensor 5 all are provided with the through-hole that supplies lead screw 4 to pass, the top of the part that lead screw 4 wore out spoke type pressure sensor 5 is connected with hand (hold) subassembly 10, spoke type pressure sensor 5 and outer tube 1 fixed connection, spoke type pressure sensor 5 and digital display instrument 6 electric connection.

Optionally, the roller 32 is rotatably connected to the wheel frame 31 through a wheel axle.

Optionally, the wheel frame 31 is welded to the inner tube 2.

Preferably, the screw 7 is fixed on the top of the inner tube 2, and the screw rod 4 is connected with the screw 7 through T-shaped threads.

Preferably, the step surface 8 is sequentially provided with a bearing washer 11, a thrust bearing 9, a sensor gasket 12 and a spoke type pressure sensor 5. The spoke type pressure sensor 5 is fixedly connected with the outer pipe 1 through an inner hexagon bolt, and the spoke type pressure sensor 5 is in contact with the sensor gasket 12.

Preferably, the digital display instrument 6 is sleeved on the outer tube 1, fixed by an inner hexagon bolt, and electrically connected with the spoke type pressure sensor 5 through a lead.

Preferably, the top of the screw rod 4 is connected with the handle assembly 10 through a plastic cover 13 and a spring pin 14, the plastic cover 13 is buckled on the top of the spoke type pressure sensor 5, and the spring pin 14 is connected with the plastic cover 13, the screw rod 4 and the handle assembly 10.

When the product was used, outside trailer passed through the checkpost and is fixed outer tube 1, through rocking handle assembly 10 clockwise or anticlockwise this moment, can control the lift of inner tube 2, and then control the lift of gyro wheel 32. When the roller 32 contacts the ground, the product will be subjected to pressure load from an external trailer, the pressure is transmitted to the spoke type pressure sensor 5 through the roller 32, the wheel frame 31, the inner tube 2, the screw 7, the screw rod 4, the bearing gasket, the thrust bearing 9 and the sensor gasket 12 in sequence, the pressure is deformed, the transmitted electric signal is changed, and the electric signal is transmitted to the digital display instrument 6 through a lead wire to directly present the current load weight.

The invention can more conveniently obtain more accurate reading, simplifies the product structure, improves the product weighing precision and enables the user to more conveniently read. In addition to real-time load measurement, the digital display instrument 6 is adopted to increase the functions of load zero setting and peak load retention. The function of preserving the peak load is such that the meter will only display the value at the moment when the load is maximum during the weighing process and remain unchanged for the user's needs.

Spoke formula pressure sensor passes through bolted connection to be fixed in outer tube 1 upper end, its interior circle force measuring district passes through the gasket and is connected with thrust bearing 9, when the support wheel begins to bear the load, pressure passes through gyro wheel 32, wheel carrier 31, lead screw 4, thrust bearing 9 transmits spoke formula pressure sensor 5, after pressure sensor receives pressure, it can produce corresponding signal of telecommunication, give digital display instrument 6 with the signal transmission through the wire, the load of weighing will real-time demonstration come out, its precision can reach 0.01 KG.

In addition to displaying the load weight in real time, the digital display instrument 6 also has a peak value retention function, and the instrument will only display the value of the maximum load in the weighing process at one moment and keep the value unchanged for the user.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.

Claims

1. An electronic weighing support wheel, its characterized in that: including outer tube, inner tube, wheel carrier, gyro wheel, lead screw, spoke formula pressure sensor and digital display instrument, the inner tube can be followed endwise slip and installed in the outer tube, the lower extreme of inner tube wear out the outer tube and with wheel carrier fixed connection, the gyro wheel is rotatably installed on the wheel carrier, inner tube fixed mounting has the screw, the lead screw passes through the screw thread and installs in the screw, the top of lead screw is provided with the step face, the step face on install thrust bearing and spoke formula pressure sensor in proper order, thrust bearing and spoke formula pressure sensor all are provided with the through-hole that supplies the lead screw to pass, the top of the part that the lead screw wore out spoke formula pressure sensor is connected with the hand (hold) subassembly, spoke formula pressure sensor and outer tube fixed connection, spoke formula pressure sensor and digital display instrument electric connection.

2. An electronic weigh support wheel according to claim 1, wherein: the roller is rotatably connected with the wheel frame through a wheel shaft.

3. An electronic weigh support wheel according to claim 1, wherein: the wheel carrier is connected with the inner pipe in a welding mode.

4. An electronic weigh support wheel according to claim 1, wherein: the screw nut is fixed on the top of the inner tube, and the screw rod is connected with the screw nut through T-shaped threads.

5. An electronic weigh support wheel according to claim 1, wherein: and the step surface is sequentially provided with a bearing gasket, a thrust bearing, a sensor gasket and a spoke type pressure sensor.

6. An electronic weigh support wheel according to claim 1, wherein: the digital display instrument is sleeved on the outer tube.

7. An electronic weigh support wheel according to claim 1, wherein: the top of the screw rod is connected with a handle component through a plastic cover and a spring pin, the plastic cover is buckled at the top of the spoke type pressure sensor, and the spring pin is connected with the plastic cover, the screw rod and the handle component.