CN201392231Y

CN201392231Y - Column type sensor for electronic automobile scale

Info

Publication number: CN201392231Y
Application number: CN200920115040U
Authority: CN
Inventors: 刘巍
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-06
Filing date: 2009-03-06
Publication date: 2010-01-27
Anticipated expiration: 2019-03-06

Abstract

The utility model relates to a column type sensor for an electronic automobile scale, which comprises an upper pressure head (1) and a lower pressure head (2) which are spaced, wherein an elastic body (3) is supported between the upper pressure head (1) and the lower pressure head (2). The column type sensor for the electronic automobile scale is characterized in that the end surface of the head portion (31) of the elastic body is provided with a convex arc surface (311), the lower end surface of the upper pressure head (1) is provided with a concave arc surface (11) which is matched with the convex arc surface (311) in contacting mode, the end surface of the tail portion (32) of the elastic body also is provided with a convex arc surface, the upper portion of the lower pressure head (2) is provided with a concave portion (21) which can hold the tail portion (32) of the elastic body, a limit pin (5) is fixed in the concave portion (21), the limit pin (5) passes through a limit hole (321) which is located on the lower end of the tail portion (32) of the elastic body, and the limit pin (5) and the limit hole (321) are loosely matched. The elastic body structure in the sensor belongs to the design principle of tumblers, thereby the sloshing angle of the elastic body can reach 25 degrees, the elastic body can automatically return to a center, and the column type sensor for the electronic automobile scale is particularly suitable for the electronic automobile scale which has sloshing condition.

Description

The column type sensor that is used for electronic vehicle weighing apparatus

Technical field

The utility model relates to the technical field that belongs to sensor, relates in particular to a kind of column type sensor that is used for electronic vehicle weighing apparatus.

Background technology

Existing electronic vehicle weighing apparatus generally comprises weighing platform, column LOAD CELLS and weighing instrument, the column LOAD CELLS is installed in the below of weighing platform, general column sensor comprises the seaming chuck that is connected the top board below, and be connected the seaming chuck of lower shoe top, seaming chuck and push-down head are provided with at interval, and between seaming chuck and push-down head, be provided with elastic body, elastomeric outer is arranged with dirt-proof boot, elastomeric upper end head passes the lower surface plane contact of dirt-proof boot top and seaming chuck, and elastomeric lower end afterbody passes dirt-proof boot bottom and push-down head plane contact and fixing.

As a patent No. is the Chinese utility model patent " sensor flip-over type steel and concrete structure truck scale " of ZL200820101048.1 (notification number is CN201138239Y), and as a patent No. be the Chinese utility model patent " a kind of LOAD CELLS side dress electronic vehicle weighing apparatus " of ZL200820066664.8 (notification number is CN201184814Y), be the Chinese utility model patent " truck scale pickup dust-proofing cover " of ZL200420028612.3 (notification number is CN2685850Y) as a patent No. also, they have all disclosed and the roughly the same sensor of aforementioned column sensor construction.

There is following disadvantage in the existing column type sensor that is used for electronic vehicle weighing apparatus: 1, elastomeric upper end is the same with the bottom size, so elastic body can not be stood voluntarily, needs it is compressed between seaming chuck and the push-down head; 2, it is poor that sensor as aforementioned is in use returned disposition, the electronic vehicle weighing apparatus that uses this sensor in use, excessively outwell easily if rock, generally rock 6 degree about angle, so existing column sensor only is adapted at static use down, is not suitable for using in the electronic vehicle weighing apparatus in rocking.

In sum, the existing column type sensor that is used for electronic vehicle weighing apparatus also can be further improved.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of angle of rocking big and can return the column type sensor that is used for electronic vehicle weighing apparatus of the heart automatically at above-mentioned prior art present situation, and this sensor is particularly suitable in the electronic vehicle weighing apparatus of the situation of rocking.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of column type sensor that is used for electronic vehicle weighing apparatus, include the seaming chuck and the push-down head that are intervally installed, be supported with elastic body between seaming chuck and the push-down head, elastomeric outer is arranged with dirt-proof boot, elastomeric head passes dirt-proof boot top and contacts with the lower surface of seaming chuck, elastomeric afterbody passes the dirt-proof boot bottom and contacts continuous with push-down head, it is characterized in that: the end face of described elastomeric head is a convex globoidal, the seaming chuck lower surface has the cancave cambered surface with this convex globoidal contact matching, the end face of described elastomeric afterbody also is a convex globoidal, the top of push-down head have can ccontaining elastomeric afterbody recess, the recess internal fixation has a spacer pin, this spacer pin passes the spacing hole that is positioned at elastomeric afterbody lower end, loose fit between spacer pin and the spacing hole.

Above-mentioned elastomeric head sectional dimension is less than the size of elastic body afterbody.Elastic body is whole to adopt up-small and down-big structure, on help concentrating of power for a short time, help the carrying of power down greatly, this sensor can make force structure more reasonable in the application of electronic vehicle weighing apparatus like this, guarantees the accuracy of measuring.

Above-mentioned dirt-proof boot is made up of outer cover and diaphragm, described outer cover upper and lower side opening, outer cover is set in elastomeric outer, the internal perisporium of outer cover lower ending opening is sealed and matched with elastic body lower, outer perimeter wall and is connected, described diaphragm is the sealing of the upper end open of outer cover, and elastomeric head passes this diaphragm and cooperates with diaphragm seal.It is a kind of concrete structure of dirt-proof boot, because diaphragm seal is adopted on outer cover top, it can guarantee that not only the elasticity physical efficiency rocks, but also can be effectively spacing to elastic body, and placing elastic body, to rock angle excessive and outwell.

Above-mentioned seaming chuck is by the lower surface of screw retention at top board, and described push-down head is by the upper surface of screw retention at lower shoe.

Compared with prior art, advantage of the present utility model is: because elastomeric head and afterbody are globoidal structure, elastomeric afterbody is loosening spacing in the recess of push-down head upper surface by spacer pin, so whole elastomer structure belongs to the design concept of tumbler, so make that the elasticity physical efficiency reaches to rock angle big, can reach 25 °, and can return the heart automatically, be particularly suitable in the electronic vehicle weighing apparatus of the situation of rocking.

Description of drawings

Fig. 1 is the structure cut-open view of the utility model embodiment.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1, be a preferred embodiment of the present utility model.

A kind of column type sensor that is used for electronic vehicle weighing apparatus, include the seaming chuck 1 and the push-down head 2 of setting spaced in parallel to each other, the end face of seaming chuck 1 and push-down head 2 is rounded, seaming chuck 1 is fixed on the lower surface of top board 7 by screw 6, described push-down head 2 is fixed on the upper surface of lower shoe 8 by screw 6, and top board 7 and lower shoe 8 end faces are square.

Be supported with elastic body 3 between seaming chuck 1 and the push-down head 2, elastic body 3 is the vitals in the sensor in the electronic vehicle weighing apparatus, elastic body 3 outer cover are provided with dirt-proof boot 4, dirt-proof boot 4 is made up of outer cover 41 and diaphragm 42, described outer cover 41 upper and lower side openings, outer cover 41 is set in elastic body 3 outsides, the internal perisporium of outer cover 41 lower ending openings is sealed and matched with elastic body 3 lower, outer perimeter walls and is connected, diaphragm 42 is the sealing of the upper end open of outer cover 41, and the head 31 of elastic body 3 passes this diaphragm 42 and is sealed and matched with diaphragm 42.

The cross section of the head 31 of elastic body 3 is circular, and the head 31 of elastic body 3 passes diaphragm 42 and contacts with the lower surface of seaming chuck 1, and the cross section of the afterbody 32 of elastic body 3 is also rounded, and the lower ending opening that the afterbody 32 of elastic body 3 passes outer cover 41 contacts continuous with push-down head 2.

Main inventive point of the present utility model is, the end face of the head 31 of elastic body 3 is a convex globoidal 311, seaming chuck 1 lower surface has the cancave cambered surface 11 with this convex globoidal 311 contact matching, the end face of the afterbody 32 of described elastic body 3 also is a convex globoidal 321, the top of push-down head 2 has the recess 21 of afterbody 32 that can ccontaining elastic body 3, recess 21 internal fixation have a spacer pin 5, this spacer pin 5 passes the spacing hole 321 of afterbody 32 lower ends that are positioned at elastic body 3, loose fit between spacer pin 5 and the spacing hole 321, spacer pin 5 can have two, be arranged on recess 21 both sides of push-down head 2, and head 31 sectional dimensions of elastic body 3 are less than the size of the afterbody 32 of elastic body 3.

The principle of work of principle of work of the present utility model and mounting means and existing column type sensor is identical, because elastomeric head 31 and afterbody 32 are globoidal structure, elastomeric afterbody 32 is loosening spacing in the recess 21 of push-down head 2 upper surfaces by spacer pin 5, so whole elastomer structure belongs to the design concept of tumbler, so make that elastic body 3 can reach to rock angle big, can reach 25 °, and can return the heart automatically, be particularly suitable in the electronic vehicle weighing apparatus of the situation of rocking.

Claims

1, a kind of column type sensor that is used for electronic vehicle weighing apparatus, include the seaming chuck (1) and the push-down head (2) that are intervally installed, be supported with elastic body (3) between seaming chuck (1) and the push-down head (2), elastic body (3) outer cover is provided with dirt-proof boot (4), elastomeric head (31) passes dirt-proof boot (4) top and contacts with the lower surface of seaming chuck (1), elastomeric afterbody (32) passes dirt-proof boot (4) bottom and contacts continuous with push-down head (2), it is characterized in that: the end face of described elastomeric head (31) is convex globoidal (311), seaming chuck (1) lower surface has the cancave cambered surface (11) with this convex globoidal (311) contact matching, the end face of described elastomeric afterbody (32) also is a convex globoidal (321), the top of push-down head (2) have can ccontaining elastomeric afterbody (32) recess (21), recess (31) internal fixation has a spacer pin (5), this spacer pin (5) passes the spacing hole (321) that is positioned at elastomeric afterbody (32) lower end, loose fit between spacer pin (5) and the spacing hole (321).

2, the column type sensor that is used for electronic vehicle weighing apparatus according to claim 1 is characterized in that: described elastomeric head (31) sectional dimension is less than the size of elastomeric afterbody (32).

3, the column type sensor that is used for electronic vehicle weighing apparatus according to claim 1, it is characterized in that: described dirt-proof boot (4) is made up of outer cover (41) and diaphragm (42), described outer cover (41) upper and lower side opening, outer cover (41) is set in elastic body (3) outside, the internal perisporium of outer cover (41) lower ending opening is sealed and matched with elastic body (3) lower, outer perimeter wall and is connected, described diaphragm (42) is the sealing of the upper end open of outer cover (41), and elastomeric head (31) passes this diaphragm (42) and is sealed and matched with diaphragm (42).

4, according to claim 1, the 2 or 3 described column type sensors that are used for electronic vehicle weighing apparatus, it is characterized in that: described seaming chuck (1) is fixed on the lower surface of top board (7) by screw (6), and described push-down head (2) is fixed on the upper surface of lower shoe (8) by screw (6).