CN207019818U - A kind of high use for laboratory weight beam of precision - Google Patents
A kind of high use for laboratory weight beam of precision Download PDFInfo
- Publication number
- CN207019818U CN207019818U CN201720771506.1U CN201720771506U CN207019818U CN 207019818 U CN207019818 U CN 207019818U CN 201720771506 U CN201720771506 U CN 201720771506U CN 207019818 U CN207019818 U CN 207019818U
- Authority
- CN
- China
- Prior art keywords
- scale
- vernier scale
- housing
- fixedly installed
- precision
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses a kind of high use for laboratory weight beam of precision, including suspension ring, housing, spring and hook, the suspension ring are fixedly installed on the top of housing, the top of the spring is fixedly connected with the top inwall of housing, also include main scale and vernier scale, the main scale is fixedly installed in housing, the top of the vernier scale is fixedly connected with the bottom of spring, a chute is fixedly installed on the main scale, a sliding block is fixedly installed on the vernier scale, the vernier scale can radially be slided up and down by sliding block along chute, it is described to link up with the bottom that vernier scale is fixedly connected on by a pull bar, the utility model error is small, accuracy and precision are high.
Description
Technical field
It the utility model is related to experimental equipment technical field, and in particular to a kind of high use for laboratory spring dynamometry of precision
Meter.
Background technology
At present, student carries out often using weight beam during Physical Experiment in the lab, corresponding so as to complete
Experiment, but the weight beam in existing laboratory is simple in construction, and error is larger, when measured object be less object or
When precision required by person's measured object is higher, existing weight beam can not then meet the required precision of measured object.
Utility model content
(1) technical problems to be solved
In order to overcome prior art insufficient, it is proposed that a kind of high use for laboratory weight beam of precision, error is small, accurately
Property and precision it is high.
(2) technical scheme
It is of the present utility model to be achieved through the following technical solutions：The utility model proposes a kind of high use for laboratory of precision
Weight beam, including suspension ring, housing, spring and hook, the suspension ring are fixedly installed on the top of housing, the spring
Top is fixedly connected with the top inwall of housing, in addition to main scale and vernier scale, and the main scale is fixedly installed in housing, institute
State the top of vernier scale to be fixedly connected with the bottom of spring, a chute is fixedly installed on the main scale, is consolidated on the vernier scale
Surely a sliding block is provided with, the vernier scale can radially be slided up and down by sliding block along chute, and the hook is consolidated by a pull bar
Surely it is connected to the bottom of vernier scale.
Further, top is fixedly installed a level meter in the housing.
Further, the contact surface of the chute and sliding block is disposed as smooth surface.
Further, the cross section of the vernier scale is right-angled trapezium shape.
Further, the minimum division value of the vernier scale is 0.1mm.
(3) beneficial effect
The utility model has the advantages that relative to prior art：
A kind of high use for laboratory weight beam of precision that the utility model is mentioned, pass through level meter and adjust spring dynamometry
The perpendicularity of meter, degree of accuracy during measurement is improved, reading is used cooperatively by vernier scale and main scale during measurement, improves measurement
Precision, the cross section of vernier scale is right-angled trapezium shape, is easy to reading of the user to vernier scale and main scale high scale value.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model A-A sectional views.
1- suspension ring；2- housings；3- springs；4- is linked up with；5- main scales；6- vernier scales；21- level meters；41- pull bars；51- is slided
Groove；61- sliding blocks.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.
A kind of high use for laboratory weight beam of precision as depicted in figs. 1 and 2, including suspension ring 1, housing 2, spring 3
And hook 4, the suspension ring 1 are fixedly installed on the top of housing 2, and the top of the spring 3 is fixed with the top inwall of housing 2
Connection, it is characterised in that：Also include main scale 5 and vernier scale 6, the main scale 5 is fixedly installed in housing 2, the vernier scale 6
Top be fixedly connected with the bottom of spring 3, be fixedly installed a chute 51 on the main scale 5, on the vernier scale 6 fixation set
A sliding block 61 is equipped with, the vernier scale 6 can be slided up and down by sliding block 61 along the radial direction of chute 51, and the hook 4 is drawn by one
Bar 41 is fixedly connected on the bottom of vernier scale 6.
Wherein, top is fixedly installed a level meter 21 in the housing 2, and the contact surface of the chute 51 and sliding block 61 is equal
Smooth surface is arranged to, the cross section of the vernier scale 6 is right-angled trapezium shape, and the minimum division value of the vernier scale 6 is
0.1mm。
The high use for laboratory weight beam of a kind of precision that the utility model is mentioned, in use, user passes through first
Level meter 21 adjusts the perpendicularity of housing 1, ensures degree of accuracy during measurement, reduces error, then adjusts the weight beam
Zero, by 0 graduation mark of 0 graduation mark of vernier scale 6 and main scale 5 to it, then object under test is placed on hook 4, hook 4 exists
Vernier scale 6 is pulled by pull bar 41 under the gravity of measured object, vernier scale 6 is by sliding block 61 along the chute 51 on main scale 5 to moving down
Dynamic, the contact surface of chute 51 and sliding block 61 is smooth surface, then the error that frictional force between it is brought can be neglected when measuring
Influence, can then carry out reading, user can carry out reading according to the number reading method of slide measure, read first on main scale 5
Scale value, read vernier scale 6 on scale value, finally calculated, can be obtained a result.
Embodiment described above is only that preferred embodiment of the present utility model is described, not to this practicality
New spirit and scope are defined.On the premise of the utility model design conception is not departed from, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, the scope of protection of the utility model, this reality all should be dropped into
With new claimed technology contents, all record in detail in the claims.
Claims (5)
1. a kind of high use for laboratory weight beam of precision, including suspension ring (1), housing (2), spring (3) and hook (4),
The suspension ring (1) are fixedly installed on the top of housing (2), and the top of the spring (3) is fixed with the top inwall of housing (2) to be connected
Connect, it is characterised in that：Also include main scale (5) and vernier scale (6), the main scale (5) is fixedly installed in housing (2), described
The top of vernier scale (6) is fixedly connected with the bottom of spring (3), and a chute (51) is fixedly installed on the main scale (5), described
Be fixedly installed a sliding block (61) on vernier scale (6), the vernier scale (6) can by sliding block (61) along chute (51) radially
Lower slider, the hook (4) are fixedly connected on the bottom of vernier scale (6) by a pull bar (41).
A kind of 2. high use for laboratory weight beam of precision according to claim 1, it is characterised in that：The housing
(2) interior top is fixedly installed a level meter (21).
A kind of 3. high use for laboratory weight beam of precision according to claim 1, it is characterised in that：The chute
(51) contact surface with sliding block (61) is disposed as smooth surface.
A kind of 4. high use for laboratory weight beam of precision according to claim 1, it is characterised in that：The vernier scale
(6) cross section is right-angled trapezium shape.
A kind of 5. high use for laboratory weight beam of precision according to claim 1, it is characterised in that：The vernier scale
(6) minimum division value is 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720771506.1U CN207019818U (en) | 2017-06-29 | 2017-06-29 | A kind of high use for laboratory weight beam of precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720771506.1U CN207019818U (en) | 2017-06-29 | 2017-06-29 | A kind of high use for laboratory weight beam of precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207019818U true CN207019818U (en) | 2018-02-16 |
Family
ID=61484979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720771506.1U Expired - Fee Related CN207019818U (en) | 2017-06-29 | 2017-06-29 | A kind of high use for laboratory weight beam of precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207019818U (en) |
-
2017
- 2017-06-29 CN CN201720771506.1U patent/CN207019818U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180216 Termination date: 20180629 |