CN210293416U

CN210293416U - Portable scale capable of improving weighing precision

Info

Publication number: CN210293416U
Application number: CN201921672855.3U
Authority: CN
Inventors: 刘毅; 田丽娟; 陈亚艺
Original assignee: Shenzhen Yuwei Weighing Apparatus Co ltd
Current assignee: Shenzhen Yuwei Weighing Apparatus Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-04-10
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses an improve portable scale of weighing precision, its technical scheme main points are: including weighing the body and setting up in weighing the couple of body lower extreme, it is provided with the coupling mechanism who will weigh body and couple and be connected to weigh the body lower extreme, coupling mechanism includes and weighs body coupling's connecting block and be fixed in the go-between of couple upper end, the connecting block lateral wall runs through there is the connecting hole, the go-between passes from the connecting hole, connecting hole inner wall lower extreme fixedly connected with reference column, go-between inner wall upper end seted up with reference column complex constant head tank, reference column and couple are located the both sides of go-between axis respectively, when weighing, the reference column is inserted and is. The utility model discloses a rational in infrastructure utilizes constant head tank, reference column and guide way to inject the position of go-between, makes the couple when weighing its and weigh the position of body can not change, reduces the range of rocking of testee to the result that the messenger weighed is more accurate.

Description

Portable scale capable of improving weighing precision

Technical Field

The utility model belongs to portable scale, more specifically say, it relates to a portable scale of precision is weighed in improvement.

Background

The electronic portable scale is popular with consumers because of convenient carrying and use.

Chinese patent CN201740588U discloses an electronic portable scale, which has the technical essential that: the portable electronic weighing device is characterized in that a hanging buckle is arranged below the portable electronic weighing device, a replaceable lifting device for lifting objects is hung on the hanging buckle in a buckling mode, the lifting device comprises a hook buckled on the hanging buckle, and a lifting piece is connected below the hook.

The couple of portable scale among the above-mentioned scheme and portable scale body between can move about, this moment collude with the object that the couple will be weighed and hold after, need mention portable scale body and measured object simultaneously, need make the measured object be in quiescent condition when measuring, measurement accuracy is the most accurate this moment.

However, the conventional object cannot keep the object completely still during measurement, and in this case, the measurement can be performed only in a state that the object is kept as still as possible. But current portable scale makes couple and portable scale body keep active state for making the couple can facilitate the use usually, utilizes the couple also can remove along with the testee after colluding the testee with the testee to this moment to lead to the amplitude of oscillation of testee great, can reduce measuring accuracy this moment.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an improve portable scale who weighs precision obtains injecing with the position of weighing the body when weighing, reduces the range of rocking of testee to improve measuring result's accuracy.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an improve and weigh portable scale of precision, is including weighing the body and setting up in weighing the couple of body lower extreme, it is provided with the coupling mechanism who will weigh the body and be connected with the couple to weigh the body lower extreme, coupling mechanism includes and weighs body coupling's connecting block and be fixed in the go-between of couple upper end, the connecting block lateral wall runs through there is the connecting hole, the go-between passes from the connecting hole, connecting hole inner wall lower extreme fixedly connected with reference column, go-between inner wall upper end is seted up with reference column complex constant head tank, reference column and couple are located the both sides of go-between axis respectively, when weighing, the reference column is inserted and is arranged.

Through adopting above-mentioned technical scheme, utilize the cooperation of reference column and constant head tank to inject the relative position of go-between and connecting block, make the difficult rocking of producing along its axis of go-between to the accuracy of weighing the result has been improved.

The utility model discloses further set up to: the lower end of the inner wall of the connecting hole is provided with a guide groove, the guide groove penetrates through two side walls of the connecting block, which are provided with the connecting hole, the positioning column is arranged in the guide groove, the upper end of the positioning column is lower than an opening of the guide groove, the connecting ring is arranged in the guide groove, and the side walls of the connecting ring are abutted to the side walls of the guide groove.

Through adopting above-mentioned technical scheme, utilize the guide way to restrict the go-between along the rotation of spliced pole axis to the measuring object rocks when reducing to weigh, further increases the accuracy of weighing the result.

The utility model discloses further set up to: and a positioning wedge-shaped surface is arranged at the opening of the positioning groove.

Through adopting above-mentioned technical scheme, utilize the location wedge face to increase the area of constant head tank opening part, utilize the location wedge face to lead to the removal of reference column simultaneously, make the process that the reference column inserted the constant head tank more convenient.

The utility model discloses further set up to: the positioning column is sleeved with a spring which drives the connecting ring to move towards the direction far away from the positioning column, the lower end of the spring is connected with the bottom surface of the guide groove, and when the positioning column is inserted into the low groove, the upper end of the spring is connected with the connecting ring.

Through adopting above-mentioned technical scheme, utilize the spring to exert the elasticity of keeping away from the reference column to the go-between, no longer need the artifical go-between that removes this moment to the process of making weighing is more convenient.

The utility model discloses further set up to: the positioning column is sleeved with a sliding block, the upper end of the spring is abutted to the lower end of the sliding block, and the upper end of the sliding block is abutted to the upper end of the inner wall of the connecting ring.

Through adopting above-mentioned technical scheme, utilize the sliding block to hinder the spring, make the spring can not insert the notch that the location wedge face formed to the process that makes weighing is more convenient.

The utility model discloses further set up to: the locating column lateral wall has seted up the spacing groove along its axis direction, the spacer pin is worn to be equipped with by the sliding block, spacer pin one end is passed the sliding block and is inserted and arrange the limiting groove and slide from top to bottom, when spacer pin and spacing groove up end butt, the sliding block up end is in the coplanar with guide way opening border.

By adopting the technical scheme, the movement of the sliding block is limited by the limiting shaft, so that the sliding block cannot influence the movement of the connecting ring.

The utility model discloses further set up to: and the edge of the end surface of the limiting pin inserted into the limiting groove is provided with a limiting wedge-shaped surface.

By adopting the technical scheme, the area of the end face of the sliding block, into which the limiting pin is inserted, is reduced by utilizing the limiting wedge-shaped surface, so that the process of inserting the limiting pin into the sliding block is more convenient.

The utility model discloses further set up to: the holding tank that sets up with the reference column is seted up to the guide way bottom surface, in the holding tank was arranged in to the spring lower extreme, when sliding block lower extreme and guide way bottom surface butt, the spring compression was just arranged in the holding tank completely.

Through adopting above-mentioned technical scheme, the spring can not be because of the too big unable recovery of deformation range when receiving the pressure that the go-between was exerted this moment, makes the use of spring not influenced.

To sum up, the utility model discloses following beneficial effect has:

1. the positions of the connecting rings are limited by the positioning grooves, the positioning columns and the guide grooves, so that the positions of the hooks and the weighing body are not changed during weighing, the shaking amplitude of a measured object is reduced, and the weighing result is more accurate;

2. utilize the spring to exert the elasticity of keeping away from the reference column to the go-between to no longer need the manual work to make go-between and reference column break away from the connection, the process of using the couple is more convenient this moment.

Drawings

FIG. 1 is a perspective view of the present embodiment;

FIG. 2 is a schematic view of the present embodiment showing a connection mechanism;

fig. 3 is an enlarged view of a portion a of fig. 2.

Description of the drawings: 1. weighing the body; 11. hooking; 2. a connecting mechanism; 21. connecting blocks; 211. connecting holes; 212. a guide groove; 213. accommodating grooves; 22. a connecting ring; 221. positioning a groove; 222. positioning a wedge-shaped surface; 23. a positioning column; 231. a limiting groove; 24. a spring; 25. a sliding block; 26. a spacing pin; 261. and a limiting wedge-shaped surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A portable scale for improving weighing precision comprises a weighing body 1 for metering and displaying reading and a hook 11 arranged at the lower end of the weighing body 1, wherein the lower end of the weighing body 1 is connected with a connecting mechanism 2 for connecting the weighing body with the hook 11, and the connecting mechanism 2 comprises a connecting block 21 connected with the weighing body 1 and a connecting ring 22 welded at the upper end of the hook 11. The upper end of the connecting block 21 is connected with the lower end of the weighing body 1 by using bolts, a connecting hole 211 is penetrated through the side wall of the connecting block in the vertical direction, and the connecting ring 22 is penetrated through the connecting hole 211. Guide slot 212 (see fig. 2) has been seted up to connecting hole 211 inner wall lower extreme, and guide slot 212 runs through two lateral walls that connecting block 21 was seted up connecting hole 211, and its bottom welding has the reference column 23 (see fig. 3) that is vertical setting, and reference column 23 upper end is less than the plane that the opening of guide slot 212 was located. The inner wall of the connecting ring 22, which is far away from the hook 11, is provided with a positioning groove 221 matched with the positioning column 23, and the axis of the positioning groove 221 is perpendicular to the axis of the connecting ring 22. When the connection ring 22 is placed in the guide groove 212, the side wall of the connection ring 22 abuts against the side wall of the guide groove 212 at the same time, and the positioning column 23 is inserted into the positioning groove 221. The positions of the connecting ring 22 are limited by the positioning columns 23, the positioning grooves 221 and the guide grooves 212, so that the relative position between the connecting ring 22 and the weighing body 1 cannot be changed, the shaking amplitude of a measured object during weighing is reduced, and the measuring result is more accurate.

As shown in fig. 3, since the positioning column 23 is engaged with the positioning groove 221, the positioning column 23 can be inserted into the positioning groove 221 only by aligning the positioning column 23 with the positioning groove 221, which results in a troublesome weighing process. Therefore, a positioning wedge surface 222 is arranged at the opening of the positioning groove 221, and the upper end of the positioning wedge surface 222 inclines towards the direction far away from the axis of the positioning groove 221. The positioning wedge-shaped surface 222 is used for increasing the area of the opening of the positioning groove 221, and meanwhile, the positioning wedge-shaped surface 222 is used for guiding the movement of the positioning column 23, so that the process of inserting the positioning column 23 into the positioning groove 221 is more convenient.

As shown in fig. 3, since the connection ring 22 needs to be manually moved in a direction away from the positioning column 23 after the weighing is completed, the positioning column 23 is sleeved with a spring 24 for driving the connection ring 22 to move in a direction away from the positioning column 23. The spring 24 is used to apply an elastic force to the connection ring 22 away from the positioning column 23, so that the connection ring 22 does not need to be moved manually, and the weighing process is more convenient.

As shown in fig. 3, the bottom surface of the guiding groove 212 is provided with an accommodating groove 213 coaxially disposed with the positioning pillar 23, the lower end of the spring 24 is disposed in the accommodating groove 213, and the spring 24 can be completely disposed in the accommodating groove 213 when compressed, and at this time, the spring 24 will not be unable to recover due to too large deformation amplitude when receiving the pressure applied by the connecting ring 22, so that the use of the spring 24 will not be affected.

As shown in fig. 3, since the spring 24 is easily inserted into the notch formed by the positioning wedge surface 222 after the spring 24 is used to drive the connecting ring 22 to move away from the positioning column 23, the movement of the connecting ring 22 is affected. Therefore, the positioning column 23 is sleeved with the sliding block 25, the upper end of the spring 24 is abutted with the side wall of the sliding block 25 close to the bottom surface of the mounting groove, and the side wall of the sliding block 25 far away from the spring 24 is abutted with the connecting ring 22. The sliding block 25 is used for blocking the spring 24, so that the spring 24 is not inserted into a notch formed by the positioning wedge-shaped surface 222, and the weighing process is more convenient.

As shown in fig. 3, in order to limit the moving position of the slide 25, it does not affect the process of moving the connection ring 22 into the guide groove 212. The side wall of the positioning column 23 is provided with a limiting groove 231 along the axial direction thereof, the sliding block 25 is provided with a limiting pin 26 in a penetrating manner, and one end of the limiting pin 26 penetrates through the sliding block 25 and is inserted into the limiting groove 231 to slide up and down. When the limit pin 26 abuts against the upper end face of the limit groove 231, the end face of the sliding block 25 far away from the spring 24 and the opening edge of the guide groove 212 are in the same plane. The movement of the sliding block 25 is limited by the limiting shaft, so that the sliding block 25 does not influence the movement of the connecting ring 22.

As shown in fig. 3, in order to make the process of inserting the limit pin 26 into the sliding block 25 more convenient, the end face edge of the limit pin 26 inserted into the sliding groove is provided with a limit wedge-shaped surface 261, and the area of the end face of the limit pin 26 inserted into the sliding block 25 is reduced by the limit wedge-shaped surface 261, so that the process of inserting the limit pin 26 into the sliding block 25 is more convenient.

The working principle is as follows:

when an article is weighed, the hook 11 penetrates through the article, the weighing body 1 is lifted to move upwards, the connecting ring 22 of the hook 11 is acted by gravity and moves towards the guide groove 212 along the inner wall of the connecting ring 22, the connecting ring 22 applies downward pressure to the sliding block 25 to enable the sliding block 25 to move downwards, the notch formed by the positioning wedge-shaped surface 222 faces the positioning column 23, the positioning column 23 is inserted into the positioning groove 221 through the guide of the positioning wedge-shaped surface 222, and the position of the hook 11 is limited and is not prone to moving.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides an improve and weigh portable scale of precision, includes and weighs body (1) and set up in couple (11) of weighing body (1) lower extreme, its characterized in that: weigh body (1) lower extreme and be provided with coupling mechanism (2) that body (1) and couple (11) are connected will be weighed, coupling mechanism (2) include with weigh connecting block (21) that body (1) is connected and be fixed in go-between (22) of couple (11) upper end, connecting block (21) lateral wall runs through there is connecting hole (211), go-between (22) are passed in connecting hole (211), connecting hole (211) inner wall lower extreme fixedly connected with reference column (23), go-between (22) inner wall upper end seted up with reference column (23) complex constant head tank (221), reference column (23) and couple (11) are located the both sides of go-between (22) axis respectively, when weighing, constant head tank (221) are arranged in to reference column (23).

2. The portable scale of claim 1, wherein the portable scale comprises: the lower end of the inner wall of the connecting hole (211) is provided with a guide groove (212), the two side walls of the connecting block (21) provided with the connecting hole (211) are penetrated through by the guide groove (212), the positioning column (23) is arranged in the guide groove (212), the upper end of the positioning column is lower than the opening of the guide groove (212), and the connecting ring (22) is arranged in the guide groove (212) and the side walls of the connecting ring are simultaneously abutted against the side walls of the guide groove (212).

3. The portable scale of claim 2, wherein the portable scale comprises: and a positioning wedge-shaped surface (222) is arranged at the opening of the positioning groove (221).

4. The portable scale of claim 2, wherein the portable scale comprises: the positioning column (23) is sleeved with a spring (24) which drives the connecting ring (22) to move towards the direction far away from the positioning column (23), the lower end of the spring (24) is connected with the bottom surface of the guide groove (212), and when the positioning column (23) is inserted into the low-position groove, the upper end of the spring (24) is connected with the connecting ring (22).

5. The portable scale of claim 4, wherein the portable scale comprises: the positioning column (23) is sleeved with a sliding block (25), the upper end of the spring (24) is abutted to the lower end of the sliding block (25), and the upper end of the sliding block (25) is abutted to the upper end of the inner wall of the connecting ring (22).

6. The portable scale of claim 5, wherein the portable scale comprises: spacing groove (231) have been seted up along its axis direction to reference column (23) lateral wall, stop pin (26) are worn to be equipped with by sliding block (25), stop pin (26) one end is passed sliding block (25) and is inserted and arrange limiting groove (231) in and slide from top to bottom, and when stop pin (26) and limiting groove (231) up end butt, sliding block (25) up end and guide way (212) opening border are in the coplanar.

7. The portable scale of claim 6, wherein the portable scale comprises: and a limiting wedge-shaped surface (261) is arranged at the edge of the end surface of the limiting pin (26) inserted into the limiting groove (231).

8. The portable scale of claim 4, wherein the portable scale comprises: guide way (212) bottom surface is seted up and is held holding tank (213) with reference column (23) coaxial setting, spring (24) lower extreme is arranged in holding tank (213), when sliding block (25) lower extreme and guide way (212) bottom surface butt, spring (24) compression is just arranged in holding tank (213) completely.