CN218481160U

CN218481160U - Anti-collapse column type weighing module

Info

Publication number: CN218481160U
Application number: CN202221749852.7U
Authority: CN
Inventors: 陈雄; 查凌峰; 郭治刚; 陈学明; 劳燕儿
Original assignee: Ningbo Aien Electronics Co ltd
Current assignee: Ningbo Aien Electronics Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2023-02-14
Anticipated expiration: 2032-07-06

Abstract

The utility model relates to a prevent down column type weighing module, including column sensor (1), upper pressure head (2) and lower connecting plate (4), the lower extreme of column sensor (1) links to each other with lower connecting plate (4), is fixed with on lower connecting plate (4) can carry out the guard shield (5) of 360 degrees oscillating quantity restrictions all around to column sensor (1), and central round hole (52) have been seted up to the up end of guard shield (5); the central round hole (52) of the shield (5) is used for exposing the upper end of the column sensor (1); go up and be provided with spheroid (7) between pressure head (2) and column sensor (1), the lower terminal surface of going up pressure head (2) and the up end of column sensor (1) all have with spheroid (7) contact and supply first cambered surface (100) that spheroid (7) rolled. Through setting up spheroid, guard shield, the guard shield links to each other with lower connecting plate and forms comparatively stable and firm structure of preventing toppling, realizes the protection of toppling over of column sensor.

Description

Anti-collapse column type weighing module

Technical Field

The utility model relates to a weighing device, concretely relates to prevent column type weighing module that falls is applicable to electronic weighing equipment such as electronic truck scale, rail weighbridge, material jar balance.

Background

At present, the column sensor is widely applied to various electronic weighing devices such as various truck scales, rail scales, axle load scales, material tank scales and the like. The column sensor generally comprises connecting pieces such as an upper pressure head, a lower pressure head, an upper mounting plate, a lower mounting plate and a lateral pull rod. The column type sensor has compact structure, stable and reliable performance and excellent dynamic response performance, and is very suitable for manufacturing high-precision sensors.

Chinese utility model patent like patent No. ZL 202122133432.8 "prevent down column type weighing sensor module", it includes the column type sensor, go up pressure head and base, the base lower extreme is fixed with lower connecting plate, be fixed with the type of falling U piece that can carry out 360 degrees oscillating quantities restrictions all around to the column type sensor on the lower connecting plate, the central column type round hole that supplies to wear to put on the type of falling U piece up end is seted up to the type of falling U piece up end, the column type sensor lower extreme is located on the base, the column type sensor upper end is passed central round hole and is offset with last pressure head, it is equipped with the upper junction plate to go up the pressure head upper end, the type of falling U piece upper end left and right sides is equipped with the flange structure of outside extension, flange structure passes through fixing bolt and upper junction plate fixed connection. This patent simple structure is compact, can realize quick installation, all is provided with in each direction and prevents down the device of preventing overturning, plays limiting displacement to the horizontal yawing force that the module received and the unbalance loading in each position, effectively protects sensor and equipment.

However, the above-mentioned patent does not disclose a weighing module of other structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a prevent down column type weighing module that can prevent equally that the sensor swing is too big and weighing platform topples, rational in infrastructure is practical.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an anti-falling column type weighing module comprises a column type sensor, an upper pressure head and a lower connecting plate, wherein the lower end of the column type sensor is connected with the lower connecting plate, a protective cover capable of limiting the oscillating quantity of the column type sensor in 360 degrees in all directions is fixed on the lower connecting plate, and a central circular hole is formed in the upper end face of the protective cover;

the method is characterized in that:

the central circular hole of the protective cover is used for exposing the upper end of the column sensor;

go up and be provided with the spheroid between pressure head and the column type sensor, the lower terminal surface of going up the pressure head and the up end of column type sensor all have and contact with the spheroid and supply the rolling first cambered surface of spheroid.

In order to carry out spacingly to the spheroid, the upper end of column sensor is located the central round hole of guard shield, the pore wall upper portion of the central round hole of guard shield is the second cambered surface, and this second cambered surface constitutes a ball socket that the opening is up with the first cambered surface of the upper end of column sensor, and this ball socket supplies spheroidal lower part to fall into it and supplies the spheroid to roll. So, be the second cambered surface through the pore wall upper portion of guard shield, with the upper end cooperation of column sensor to carry on spacingly to the spheroid.

In order to limit the column sensor, an elastic O-shaped ring for limiting the upper part of the column sensor is assembled in the central round hole of the protective cover.

In order to install the O-shaped ring, the protective cover is provided with an annular step, the middle area of the annular step is the upper part of the central circular hole, the O-shaped ring is sleeved on the side wall of the upper end part of the column type sensor, and the outer peripheral wall of the O-shaped ring is abutted against the inner peripheral wall of the annular step. Through setting up annular step, have a limiting displacement to O type circle to there is a limiting displacement to column sensor.

In order to connect the protective cover with the weighing platform, the protective cover is provided with a second connecting hole which penetrates through the protective cover up and down, and the protective cover is fixedly connected with the weighing platform through the second connecting hole by a bolt. The shield is connected with the weighing platform by the second connecting hole and the bolt.

In order to properly reduce the weight of the shield, the side surface of the shield is provided with a weight-reducing hollow part. Therefore, the weight of the shield can be properly reduced, and the material is saved.

For convenience of manufacture, the shield is an integrally formed piece. Therefore, the manufacturing is convenient, and the assembly procedures are reduced.

The shape of guard shield has the multiple, and preferably, the guard shield is the hollow cuboid of opening downwards, four corners of guard shield distribute four stands, four stand lower extremes and the lower connecting plate fixed connection of four stands of guard shield form prevent toppling structure. Therefore, the whole structure is square and not easy to overturn.

The stand can have the multiple with the connected mode of lower connecting plate, preferably, the first connecting hole that link up about every stand is inside seted up, the bolt passes the first connecting hole on every stand with guard shield and lower connecting plate fixed connection. Through setting up the bolt, the stand is connected more firmly with lower connecting plate.

In order to prevent the rotation of the column sensor, the middle part of the column sensor is cylindrical, the upper end and the lower end of the column sensor are respectively provided with a reducing upper bearing end and a reducing lower bearing end, the side surface of the lower bearing end is of a two-edge boss structure, and correspondingly, the middle part of the upper end surface of the lower connecting plate is provided with two-edge grooves for inserting and positioning the lower bearing end of the column sensor and preventing rotation. Thus, the column sensor is not easily rotated.

Compared with the prior art, the utility model has the advantages of: through setting up spheroid, guard shield etc. the guard shield links to each other with lower connecting plate and forms comparatively stable and firm structure of preventing toppling, plays limiting displacement to the horizontal yawing force that the module received and the unbalance loading in each position, can realize the protection to empting of sensor equally, and is rational in infrastructure practical.

Drawings

Fig. 1 is a schematic perspective view of an anti-collapse column type weighing module according to an embodiment of the present invention;

FIG. 2 is a longitudinal cross-sectional view of FIG. 1;

fig. 3 is a schematic perspective view of a protective cover in an embodiment of the present invention;

FIG. 4 is a schematic view of another angle of the shield according to the embodiment of the present invention;

FIG. 5 is an exploded view of FIG. 1;

fig. 6 is a bridge sensor weighing module.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, a preferred embodiment of the anti-falling pillar type weighing module of the present invention is shown. The anti-falling column type weighing module comprises a column type sensor 1, an upper pressure head 2, a lower connecting plate 4, a protective cover 5, a sphere 7 and the like.

The lower extreme of column sensor 1 links to each other with lower connecting plate 4, and the upper end of column sensor 1 is located the central round hole 52 of guard shield 5, and the pore wall upper portion of the central round hole 52 of guard shield 5 is second cambered surface 200, and this second cambered surface 200 constitutes an opening ball socket up with first cambered surface 100 of the upper end of column sensor 1, and this ball socket supplies the lower part of spheroid 7 to fall into it and supplies spheroid 7 to roll. The middle part of the column sensor 1 is cylindrical, the upper end and the lower end of the column sensor 1 are a reducing upper bearing end 11 and a lower bearing end 12, the side surface of the lower bearing end 12 is of a two-edge boss structure, and correspondingly, the middle part of the upper end surface of the lower connecting plate 4 is provided with two-edge grooves 41 for inserting, positioning and rotating prevention of the lower bearing end 12 of the column sensor 1. In this embodiment, the whole weighing module is a column sensor weighing module. And a dustproof sleeve 9 is arranged at the joint of the column sensor 1 and the lower connecting plate 4.

The shield 5 is fixed with the lower connecting plate 4, and the shield 5 can limit the swinging amount of the column sensor 1 by 360 degrees in the front-back direction and the left-right direction. The upper end surface of the shield 5 is provided with a central round hole 52; the central circular hole 52 of the shield 5 is exposed from the upper end of the column sensor 1. An O-ring 6 for restricting the upper part of the column sensor 1 is fitted in a central circular hole 52 of the shroud 5. The protective cover 5 is provided with an annular step 53, the middle area of the annular step 53 is the upper part of the central round hole 52, the O-shaped ring 6 is sleeved on the side wall of the upper end part of the column type sensor, and the outer peripheral wall of the O-shaped ring is abutted against the inner peripheral wall of the annular step 53. The shield 5 further has a lug 54, the lug 54 is provided with a second connection hole 541 penetrating vertically, and the shield 5 and the weighing platform are fixedly connected by a bolt through the second connection hole 541. The side of the shield 5 is provided with a lightening hollow part 55. The shield 5 is an integrally formed member. In this embodiment, the shield 5 is a hollow cuboid with a downward opening, four upright posts 51 are distributed at four corners of the shield 5, and the lower ends of the four upright posts 51 of the shield 5 are fixedly connected with the lower connecting plate 4 to form an overturn-preventing structure. A first connecting hole 5a penetrating up and down is formed inside each upright 51, and the bolt 3 penetrates through the first connecting hole 5a on each upright 51 to fixedly connect the shield 5 with the lower connecting plate 4.

Spheroid 7 sets up between last pressure head 2 and column sensor 1, and the lower terminal surface of going up pressure head 2 and the up end of column sensor 1 all have with spheroid 7 contact and supply the rolling first cambered surface 100 of spheroid 7.

The working principle and the use method of the anti-collapse column type weighing module are as follows.

As shown in fig. 1 to 5, when the cover 5 is mounted, the bolt 3 is connected to the lower connecting plate 4 through the pillar 51 of the cover 5, and the second connecting hole 541 of the cover 5 is used to fix the platform. During weighing, through setting up guard shield 5 to realize effectively limiting column sensor 1 360 degrees oscillating volumes all around, make each direction all be provided with and prevent down overturning device, play limiting displacement to the horizontal yawing force that the module received and the unbalance loading in each position, effectively protect column sensor and equipment, make truck scale etc. be in best measurement accuracy all the time simultaneously.

In addition, the anti-collapse column type weighing module can be further recombined into a bridge type sensor weighing module, specifically, the upper pressure head 2 and the sphere 7 in fig. 1-5 are reserved, and the rest parts (namely the shield 5, the lower connecting plate 4, the bolt 3 and the O-shaped ring 6) are all replaced by corresponding components of the bridge type sensor, so that the bridge type sensor weighing module (fig. 6) is converted, the upper pressure head 2 and the sphere 7 can be shared, and material saving is facilitated.

Claims

1. An anti-falling column type weighing module comprises a column type sensor (1), an upper pressure head (2) and a lower connecting plate (4), wherein the lower end of the column type sensor (1) is connected with the lower connecting plate (4), a protective cover (5) capable of limiting the oscillating quantity of the column type sensor (1) in 360 degrees in the front-back direction, the left-right direction and the swinging quantity is fixed on the lower connecting plate (4), and the upper end face of the protective cover (5) is provided with a central round hole (52);

the method is characterized in that:

the central circular hole (52) of the shield (5) is used for exposing the upper end of the column sensor (1);

a ball body (7) is arranged between the upper pressure head (2) and the column sensor (1), and the lower end face of the upper pressure head (2) and the upper end face of the column sensor (1) are both provided with a first cambered surface (100) which is in contact with the ball body (7) and is used for the ball body (7) to roll;

the upper end of column sensor (1) is located central round hole (52) of guard shield (5), the pore wall upper portion of the central round hole (52) of guard shield (5) is second cambered surface (200), and this second cambered surface (200) constitutes an opening ball socket upwards with first cambered surface (100) of the upper end of column sensor (1), and this ball socket supplies the lower part of spheroid (7) to fall into it and supplies spheroid (7) to roll.

2. The anti-backup weighing module of claim 1, wherein: an elastic O-shaped ring (6) used for limiting the upper part of the column type sensor (1) is assembled in a central circular hole (52) of the protective cover (5).

3. The anti-collapse column weighing module of claim 2, wherein: the protective cover (5) is provided with an annular step (53), the middle area of the annular step (53) is the upper part of the central circular hole (52), the O-shaped ring (6) is sleeved on the side wall of the upper end part of the column sensor (1), and the outer peripheral wall of the O-shaped ring (6) is abutted against the inner peripheral wall of the annular step (53).

4. The anti-collapse column type weighing module of any one of claims 1 to 3, wherein: and the shield (5) is provided with a second connecting hole (541) which penetrates through the shield up and down, and the shield (5) is fixedly connected with the weighing platform through the second connecting hole (541) by a bolt.

5. The anti-backup type weighing module according to any one of claims 1 to 3, characterized in that: the side surface of the shield (5) is provided with a weight-reducing hollow part (55).

6. The anti-collapse column type weighing module of any one of claims 1 to 3, wherein: the shield (5) is an integrally formed part.

7. The anti-backup type weighing module according to any one of claims 1 to 3, characterized in that: the anti-overturning shield is characterized in that the shield (5) is a hollow cuboid with a downward opening, four upright posts (51) are distributed at four corners of the shield (5), and the lower ends of the four upright posts (51) of the shield (5) are fixedly connected with the lower connecting plate (4) to form an anti-overturning structure.

8. The anti-collapse column weighing module of claim 7, wherein: the inside first connecting hole (5 a) that link up from top to bottom of seting up of every stand (51), bolt (3) pass first connecting hole (5 a) on every stand (51) with guard shield (5) and lower connecting plate (4) fixed connection.

9. The anti-collapse column type weighing module of any one of claims 1 to 3, wherein: the middle part of column sensor (1) is cylindrical, and the upper and lower both ends of column sensor (1) bear end (11) and bear end (12) down for going up of undergauge, the side that bears end (12) down is both sides limit boss structure, corresponds, and the up end middle part of lower connecting plate (4) is equipped with lower both sides limit recess (41) that bear end (12) and plant the location and prevent changeing that supply column sensor (1) down.