CN214121383U

CN214121383U - Stable column type weighing sensor structure

Info

Publication number: CN214121383U
Application number: CN202023210156.2U
Authority: CN
Inventors: 孙亮亮; 嵇治刚
Original assignee: Aerospace South Ocean Zhejiang Science And Technology Co ltd
Current assignee: Aerospace South Ocean Zhejiang Science And Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-03
Anticipated expiration: 2030-12-28

Abstract

The utility model provides a stable column type weighing sensor structure, relate to bearing sensor technical field, including the elastomer, a pedestal, the leading-out plate, the extension piece, pressure head and steel ball, the elastomer includes the main part, first connecting piece and second connecting piece, first connecting piece side is provided with first jack, be provided with the fixed orifices on the base, the limiting plate, the stop pin, fixing bolt, first bolt hole and stop the pinhole, be provided with the cable on the leading-out plate, cable hole and cable joint spare, one side that cable joint spare is close to the leading-out plate is provided with the connector, be provided with the second jack that is used for making things convenient for the connector to pass on the leading-out plate, one side that the extension piece is close to the second connecting piece is provided with and is used for making things convenient for second connecting piece male connecting hole. The utility model relates to a stable column type weighing sensor structure's simple structure, small, the quality is light, the precision is high, and anti toppling over can the reinforce, from restoring to the throne effectually, anti yawing force performance is good, and anti overload capacity is strong.

Description

Stable column type weighing sensor structure

Technical Field

The utility model relates to the technical field of weighing sensors,

especially, the utility model relates to a stable column type weighing sensor structure.

Background

At present, the market consumption of the weighing sensor for the electronic truck scale is huge, and the electronic truck scale can be used in various invoicing and trade settlement. Due to the fierce market competition and the severe use environment of the electronic truck scale, the requirements on the price and the mass of the weighing sensor for the electronic truck scale are high.

At present, the electronic truck scale on the domestic market uses the most extensive adoption and takes the double shear bridge type structure weighing sensor of steel ball, it mainly by the base, the elastomer, elastomer and base fixing bolt, the steel ball, the pressure head is constituteed, receive the needs of its self elastomer deformation space and bearing capacity, great volume need be made to the sensor, consumption to material and energy is great, product cost is also higher, so need a section to have at present small, light in weight, sensor that the precision is high, for example, chinese patent utility model patent CN201340293 discloses a column type weighing sensor, which comprises a housing, install the column type elastomer on the base, the convex briquetting is installed on the elastomer top, the briquetting upper end is equipped with the downward concave arcwall face, the steel ball of biography power effect has been put on the arcwall face. The elastic bodies are three or two rectangular column elastic bodies, the elastic bodies are uniformly distributed or symmetrically arranged on the base, the surface of each elastic body is provided with a strain gauge, and each strain gauge forms a Wheatstone bridge; the elastic body is screwed with the pressing block through threads, a pressure head with bearing capacity is further mounted at the upper end of the steel ball mounted on the pressing block, and the contact surface of the pressure head and the steel ball is an arc surface which is concave upwards. The utility model has high measurement precision, automatic centering and resetting through the steel ball, strong load resistance and stable performance; and the volume is smaller, and the manufacturing cost is low.

However, the column-type weighing sensor structure still has the following disadvantages: poor anti-dumping ability, poor self-resetting effect, poor anti-lateral force performance and poor anti-overload capacity.

Therefore, in order to solve the above problems, it is necessary to design a reasonable and efficient large steel ball column type weighing sensor structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure both can reach small, the quality is light, the high effect of precision, but also can guarantee that anti toppling over ability is strong, from restoring to the throne effectual, anti yawing force performance is good, anti overload capacity's big steel ball column type weighing sensor structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stable column type weighing sensor structure, includes the elastomer, is used for supporting the base of elastomer, is used for connecting the outlet plate of elastomer, set up in the elastomer keeps away from the extension piece of one side of base, set up in the extension piece keeps away from the pressure head of one side of base and set up in the extension piece with the steel ball between the pressure head, the elastomer includes main part, first connecting piece and second connecting piece, first connecting piece side is provided with first jack, be provided with on the base and be used for making things convenient for first connecting piece male fixed orifices, be used for with the limiting plate that first connecting piece is connected and be used for with the anti-rotation pin that first connecting piece is connected, be provided with on the base and be used for fixing the fixing bolt of limiting plate, be used for making things convenient for the first bolt hole that fixing bolt passed and be used for making things convenient for the anti-rotation pin hole that the anti-rotation pin passed, be provided with on the outlet plate with the cable that the strainometer electricity in the main part is connected, be used for the convenience the cable hole that the cable passes through and be used for with the cable joint spare that the cable is connected, cable joint spare is close to one side of outlet plate is provided with the connector, be provided with on the outlet plate and be used for the convenience the second jack that the connector passed, the extension piece is close to one side of second connecting piece is provided with and is used for the convenience the second connecting piece male connecting hole.

As the utility model discloses a preferred, the extension piece is close to one side of steel ball is provided with first arc recess, the pressure head is close to one side of steel ball is provided with second arc recess.

As the utility model discloses a preferred, be provided with on the limiting plate and be used for the convenience fixing bolt passes and gliding spout.

As the utility model discloses a preferred, prevent changeing the pinhole with the fixed orifices intercommunication, just prevent that the round pin has at least partly to be located in the first jack.

As the utility model discloses a preferred, the second connecting piece outside is provided with first external screw thread, the connecting hole inboard be provided with first external screw thread complex first internal thread.

As the utility model discloses a preferred, the second jack with cable hole intercommunication, the connector outside is provided with the second external screw thread, just second jack inboard be provided with second external screw thread complex second internal thread.

As the utility model discloses a preferred, the outlet plate is close to one side of main part is provided with the sealing washer and is used for holding the sealing washer groove of sealing washer, the outlet plate pass through connecting bolt with the main part is connected, it is used for the convenience to be provided with on the outlet plate connecting bolt passes the second bolt hole.

As the utility model discloses a preferred, connecting bolt's quantity is one at least, just connecting bolt set up in the outside of sealing washer.

Preferably, the outer diameter of the extension is not smaller than the outer diameter of the elastic body.

As the utility model discloses an prefer, the quantity of limiting plate and anti-rotation pin all is one at least.

The utility model relates to a stable column type weighing sensor structure's beneficial effect lies in: simple structure both can reach small, the quality is light, the high effect of precision, but also can guarantee that anti toppling over ability is strong, from effectual, the anti lateral force performance of restoring to the throne is good, anti overload capacity is strong.

Drawings

Fig. 1 is a schematic cross-sectional view of the overall structure of one embodiment of a stable column-type weighing sensor structure according to the present invention;

fig. 2 is an assembly diagram of the overall structure of an embodiment of a stable pillar-type load cell structure of the present invention;

fig. 3 is a schematic top view of a limiting plate according to an embodiment of the stable pillar-type load cell structure of the present invention;

fig. 4 is a schematic side view of the outlet plate of an embodiment of a stable column-type weighing sensor structure of the present invention

In the figure: 1. the elastic body, 11, a main body, 12, a first connecting piece, 121, a first jack, 13, a second connecting piece, 2, a base, 21, a fixing hole, 22, a limiting plate, 221, a fixing bolt, 222, a first bolt hole, 223, a sliding groove, 23, an anti-rotating pin, 231, an anti-rotating pin hole, 3, a wire outlet plate, 31, a cable hole, 32, a cable connector piece, 321, a connector, 33, a second jack, 34, a sealing ring, 341, a sealing ring groove, 35, a connecting bolt, 351, a second bolt hole, 4, an expansion piece, 41, a connecting hole, 42, a first arc-shaped groove, 5, a pressure head, 51, a second arc-shaped groove, 6 and a steel ball.

Detailed Description

The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of modules and steps and the steps set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

Meanwhile, it should be understood that the flows in the drawings are not merely performed individually for convenience of description, but a plurality of steps are performed alternately with each other.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

The first embodiment is as follows: as shown in fig. 1 to 4, which are only one embodiment of the present invention, a stable column type weighing sensor structure includes an elastic body 1, a base 2 for supporting the elastic body 1, a wire outgoing plate 3 for connecting the elastic body 1, an expansion member 4 disposed on one side of the elastic body 1 away from the base 2, a pressing head 5 disposed on one side of the expansion member 4 away from the base 2, and a steel ball 6 disposed between the expansion member 4 and the pressing head 5, wherein the elastic body 1 includes a main body 11, a first connecting member 12 and a second connecting member 13, a first insertion hole 121 is disposed on one side of the first connecting member 12, a fixing hole 21 for facilitating insertion of the first connecting member 12, a limiting plate 22 for connecting with the first connecting member 12, and an anti-rotation pin 23 for connecting with the first connecting member 12 are disposed on the base 2, be provided with on base 2 and be used for fixing limiting plate 22's fixing bolt 221, be used for the convenience the first bolt hole 222 that fixing bolt 221 passed and be used for the convenience prevent changeing pinhole 231 that the stop pin 23 passed, be provided with on the outlet plate 3 with the cable that the strainometer electricity in the main part 11 is connected, be used for the convenience the cable hole 31 that the cable passes through and be used for with the cable connector 32 that the cable is connected, cable connector 32 is close to one side of outlet plate 3 is provided with connector 321, be provided with on the outlet plate 3 and be used for the convenience second jack 33 that connector 321 passed, extension 4 is close to one side of second connecting piece 13 is provided with and is used for the convenience second connecting piece 13 male connecting hole 41.

The utility model discloses in, elastomer 1 is cylindrical, and steel ball 6 and pressure head 5 are lived to extension 4 arcs of 1 upper end of elastomer, and the lower extreme of elastomer 1 is supported for the plane and stands on base 2, is provided with a plurality of cylinders in the elastomer 1, all is provided with the strainometer on a plurality of cylinders, forms the wheatstone bridge between a plurality of strainometers, and the cable that the strainometer is connected derives from the leading-out plate 3 of 1 lateral wall of elastomer for the transmission data of weighing.

Firstly, the structure of the elastic element 1, the elastic element 1 includes a main body 11, a first connecting element 12 and a second connecting element 13, the outlet plate 3 is actually mounted to the side wall of the main body 11, the first connecting element 12 is arranged at the lower end of the main body 11 for connecting with the base 2, and the second connecting element 13 is arranged at the upper end of the main body 11 for connecting with the expansion element 4.

Then is the structure of base 2, first connecting piece 12 side is provided with first jack 121, be provided with on base 2 and be used for making things convenient for first connecting piece 12 male fixed orifices 21, be used for with limiting plate 22 that first connecting piece 12 is connected and be used for with the stop pin 23 that first connecting piece 12 is connected, be provided with on base 2 and be used for fixing limiting plate 22 fixing bolt 221, be used for making things convenient for the first bolt hole 222 that fixing bolt 221 passed and be used for making things convenient for stop pin 23 passes prevent rotating pinhole 231, first connecting piece 12 just whole installation to the fixed orifices 21 in, fixed orifices 21 play prevents the function that elastic component 1 shifted and emptys, first connecting piece 12 after installing to the fixed orifices 21 in, the upper surface of first connecting piece 12 flushes with the upper surface of base 2, supports the upper surface of first connecting piece 12 through fixing bolt 221 with limiting plate 22 fixed to the upper surface of base 2 at this moment, can play the role of limiting the rotation of the elastic element 1 and the separation of the elastic element 1 from the fixing hole 21; and finally, inserting an anti-rotation pin 23 into the anti-rotation pin holes 231 on the two sides of the base 2, wherein the anti-rotation pin holes 231 are communicated with the fixing hole 21, at least one part of the anti-rotation pin 23 is positioned in the first insertion hole 121, and the anti-rotation pin 23 is inserted into the first insertion hole 121 of the first connecting piece 12, so that the rotation and the displacement of the elastic piece 1 are limited.

Therefore, the whole device has good anti-toppling and anti-rotating functions, so that the anti-toppling capacity is strong, the anti-lateral force performance is good, and the anti-overload capacity is strong.

Then be outlet plate 3's structure again, be provided with on outlet plate 3 with the cable that the strainometer electricity in the main part 11 is connected, be used for the convenience the cable hole 31 that the cable passed through and be used for with the cable connector 32 that the cable is connected, cable connector 32 is close to one side of outlet plate 3 is provided with connector 321, be provided with on outlet plate 3 and be used for the convenience second jack 33 that connector 321 passed.

A sealing ring 34 and a sealing ring groove 341 for accommodating the sealing ring 34 are disposed on one side of the outlet plate 3 close to the main body 11, the outlet plate 3 is connected to the main body 11 by a connecting bolt 35, and a second bolt hole 351 for allowing the connecting bolt 35 to pass through is disposed on the outlet plate 3.

Here, the outlet plate 3 of the outlet plate 3 is fixedly disposed on the sidewall of the main body 11 by a connecting bolt 35, a cable for transmitting a signal of the strain gauge protrudes from the cable hole 31 of the outlet plate 3 to be connected to the cable connector 32, the cable connector 32 guides the signal, and the cable connector 32 is inserted into the second insertion hole 33 of the outlet plate 3 through the connector 321 to complete the connection between the cable connector 32 and the outlet plate 3. Of course, the second insertion hole 33 communicates with the cable hole 31, and the cable is connected to the cable fitting 32 through the cable hole 31 and the second insertion hole 33 communicating with each other in this order. And after outlet plate 3 is fixed with main body 11, the effect of sealing and waterproofing IP68 is achieved by compressing sealing ring 34.

The last is the structure of extension piece 4, extension piece 4 is close to one side of second connecting piece 13 is provided with and is used for the convenience second connecting piece 13 male connecting hole 41, steel ball 6 set up in extension piece 4 with between the pressure head 5, moreover, extension piece 4 is close to one side of steel ball 6 is provided with first arc recess 42, pressure head 5 is close to one side of steel ball 6 is provided with second arc recess 51.

Here, the outer diameter of the extension piece 4 is not smaller than the outer diameter of the elastic body 1. The expansion piece 4 can provide the steel ball 6 with the capability of falling prevention and returning to the original position after the steel ball 6 rolls for a large displacement.

The utility model relates to a stable column type weighing sensor structure's simple structure both can reach small, the quality is light, the effect that the precision is high, but also can guarantee that anti toppling over ability is strong, and it is effectual from restoring to the throne, anti lateral force performance is good, and anti overload capacity is strong.

Embodiment two, still as shown in fig. 1 to 4, only be one of the embodiments of the present invention, on the basis of embodiment one, in the stable column-type weighing sensor structure of the present invention, a sliding groove 223 is disposed on the limiting plate 22 for facilitating the fixing bolt 221 to pass through and slide. That is to say, the fixing bolt 221 can slide in the sliding groove 223, and when the fixing bolt 221 is loosened but not loosened, the position of the position limiting plate 22 can be adjusted, so that the position limiting plate 22 can slide well to extend to the upper surface of the first connecting piece 12, and the position limiting effect on the first connecting piece 12 is completed.

Moreover, the strain gauge is a blind hole type or a through hole type, so that the weight change above the device can be conveniently acquired during strain.

Furthermore, a first external thread is provided on the outer side of the second connector 13, and a first internal thread matching with the first external thread is provided on the inner side of the connection hole 41, that is, the second connector 13 is connected with the expansion piece 4 by a threaded connection.

Similarly, the outer side of the connector 321 is provided with a second external thread, the inner side of the second jack 33 is provided with a second internal thread matched with the second external thread, and the connector 321 is connected with the outlet plate 3 in a threaded connection manner.

The third external thread is arranged on the outer side of the fixing bolt 221, and the third internal thread matched with the third external thread is arranged on the inner side of the first bolt hole 222, so that the fixing effect of the fixing thread 221 is better, the stability of the limiting plate 22 is higher, and the limiting effect on the first connecting piece 12 is better.

The number of the coupling bolts 35 is at least one, and the coupling bolts 35 are provided outside the seal ring 34. The water leakage at the second bolt hole 351 of the sealing ring 34 is avoided to cause the deterioration of the waterproof effect.

Finally, of course, the number of the limiting plates 22 and the anti-rotation pins 23 is at least one, and the anti-toppling and anti-rotation effects of the first connecting member 12 are better, and of course, the number of the fixing bolts 221 for fixing the limiting plates 22 is at least one.

The present invention is not limited to the above-described specific embodiments, and various modifications and changes are possible. Any modification, equivalent replacement, improvement and the like made to the above embodiments according to the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. The utility model provides a stable column type weighing sensor structure which characterized in that: comprises an elastic body (1), a base (2) used for supporting the elastic body (1), a wire outgoing plate (3) used for connecting the elastic body (1), an expansion piece (4) arranged on one side of the elastic body (1) far away from the base (2), a pressure head (5) arranged on one side of the expansion piece (4) far away from the base (2) and a steel ball (6) arranged between the expansion piece (4) and the pressure head (5), wherein the elastic body (1) comprises a main body (11), a first connecting piece (12) and a second connecting piece (13), a first jack (121) is arranged on the side edge of the first connecting piece (12), a fixing hole (21) used for facilitating the insertion of the first connecting piece (12), a limiting plate (22) used for being connected with the first connecting piece (12) and an anti-rotation pin (23) used for being connected with the first connecting piece (12) are arranged on the base (2), the base (2) is provided with a fixing bolt (221) for fixing the limit plate (22), a first bolt hole (222) for facilitating the fixing bolt (221) to pass through and an anti-rotation pin hole (231) for facilitating the anti-rotation pin (23) to pass through, the outlet plate (3) is provided with a cable which is electrically connected with the strain gauge in the main body (11), a cable hole (31) for facilitating the passage of the cable and a cable joint piece (32) for connecting the cable, one side of the cable joint piece (32) close to the outlet plate (3) is provided with a connector (321), the outlet plate (3) is provided with a second jack (33) for the connector (321) to pass through conveniently, one side of the expansion piece (4) close to the second connecting piece (13) is provided with a connecting hole (41) for facilitating the insertion of the second connecting piece (13).

2. A stable column load cell structure as defined in claim 1, wherein: one side that extension piece (4) are close to steel ball (6) is provided with first arc recess (42), one side that pressure head (5) are close to steel ball (6) is provided with second arc recess (51).

3. A stable column load cell structure as defined in claim 1, wherein: the limiting plate (22) is provided with a sliding groove (223) for enabling the fixing bolt (221) to penetrate through and slide conveniently.

4. A stable column load cell structure as defined in claim 1, wherein: the anti-rotation pin hole (231) is communicated with the fixing hole (21), and at least one part of the anti-rotation pin (23) is positioned in the first insertion hole (121).

5. A stable column load cell structure as defined in claim 1, wherein: the outer side of the second connecting piece (13) is provided with a first external thread, and the inner side of the connecting hole (41) is provided with a first internal thread matched with the first external thread.

6. A stable column load cell structure as defined in claim 1, wherein: the second jack (33) is communicated with the cable hole (31), a second external thread is arranged on the outer side of the connector (321), and a second internal thread matched with the second external thread is arranged on the inner side of the second jack (33).

7. A stable column load cell structure as defined in claim 1, wherein: the wire outgoing plate (3) is provided with a sealing ring (34) and a sealing ring groove (341) used for accommodating the sealing ring (34) on one side close to the main body (11), the wire outgoing plate (3) is connected with the main body (11) through a connecting bolt (35), and a second bolt hole (351) used for facilitating the connecting bolt (35) to penetrate is arranged on the wire outgoing plate (3).

8. A stable column load cell structure as defined in claim 7, wherein: the number of the connecting bolts (35) is at least one, and the connecting bolts (35) are arranged on the outer side of the sealing ring (34).

9. A stable column load cell structure as defined in claim 1, wherein: the outer diameter of the extension piece (4) is not smaller than the outer diameter of the elastic body (1).

10. A stable column load cell structure as defined in claim 1, wherein: the number of the limiting plates (22) and the number of the anti-rotation pins (23) are at least one.