CN207515876U - A kind of vapour-pressure type weighing device - Google Patents
A kind of vapour-pressure type weighing device Download PDFInfo
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- CN207515876U CN207515876U CN201721570477.9U CN201721570477U CN207515876U CN 207515876 U CN207515876 U CN 207515876U CN 201721570477 U CN201721570477 U CN 201721570477U CN 207515876 U CN207515876 U CN 207515876U
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- air cushion
- shell
- vapour
- piston rod
- weighing device
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Abstract
The utility model discloses a kind of vapour-pressure type weighing device, including：Weigh air cushion, can inflation/deflation, foldable folding and unfolding after deflation；Shell has a dial on shell；Pointer is installed in rotation in shell；Balance driving mechanism can rely on the pressure-driven indicators turn weighed in air cushion.Air cushion of weighing in the utility model is used to place determinand, placing the air pressure weighed in air cushion before and after determinand can change, and the air pressure change in air cushion of weighing can be converted by balance driving mechanism, drive indicators turn, determinand weight can be extrapolated by air pressure difference, cooperation dial can show determinand weight, very convenient, be not required to by electric energy, to putting ground no requirement (NR), can will weigh gas discharge in air cushion after having surveyed, and then can be reduced and taken up space with folding and retraction.
Description
Technical field
The utility model is related to a kind of vapour-pressure type weighing devices.
Background technology
Most of weighing device is all electronic scale, and the structure of electronic scale is all to be made of the material of rigid such as tempering glass
Glass, metal, engineering plastics etc..These materials cannot all carry out fold pack up, thus the scale body volume of existing structure all compared with
Greatly, it is impossible to folding and retraction, and while weighing need scale body being placed in and can entirely weigh, be unfavorable for claiming outdoors
Weight.The utility model offer one kind is purely mechanic thus, can carry out folding and unfolding, to putting the vapour-pressure type weighing device of ground no requirement (NR).
Utility model content
To solve the above-mentioned problems, the utility model offer one kind is purely mechanic, can carry out folding and unfolding, to putting ground no requirement (NR)
Vapour-pressure type weighing device.
Technical solution is used by the utility model solves its technical problem：
A kind of vapour-pressure type weighing device, including：
Weigh air cushion, can inflation/deflation, foldable folding and unfolding after deflation；
Shell has a dial on shell；
Pointer is installed in rotation in shell；
Balance driving mechanism can rely on the pressure-driven indicators turn weighed in air cushion.
The balance driving mechanism includes connection tracheae, piston rod, rack, drive rod and zeroing component, the connection gas
Pipe one end is connected with air cushion of weighing, the other end and cage connection, and piston rod one end is located at connection tracheal strips, and piston rod is with connecting gas
Inside pipe wall coordinates, and the piston rod other end is connect with rack, and drive rod is fixedly connected with pointer, and drive rod side wall is provided with gear,
Wheel and rack engages, and the zeroing component is acted on rack.
The zeroing component includes spring, fixing piece and adjusting nut, and the rack back is connected with a connecting rod, described
Piston rod, which is correspondingly connected on bar, is provided with connecting hole, and connecting hole is inserted into connecting rod one end, and the other end is inserted on the left of spring, fixing piece
On be provided with location hole, location hole is inserted on the right side of spring, and fixing piece is slidably disposed in shell, and adjusting nut is located at outer
On the side wall of shell, adjusting nut is abutted with fixing piece.
The air cushion of weighing is with an air outlet adapter, and air outlet adapter is internally provided with internal thread, and the connection tracheae is inserted into
In the air outlet adapter, and connect tracheae and the insert division is provided with external screw thread.
On the piston rod sealing ring is provided at inner surface of trachea cooperation with connecting.
The beneficial effects of the utility model are：Air cushion of weighing in the utility model places determinand for placing determinand
The front and rear air pressure weighed in air cushion can change, and the air pressure change in air cushion of weighing can be converted by balance driving mechanism, drive
Dynamic indicators turn can extrapolate determinand weight by air pressure difference, and cooperation dial can show determinand weight,
It is very convenient, it is not required to by electric energy, gas discharge, Jin Erke in the air cushion that can will weigh to putting ground no requirement (NR), after having surveyed
With folding and retraction, reduction is taken up space.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples：
Fig. 1 is the schematic diagram of the utility model；
Fig. 2 is the diagrammatic cross-section of the utility model；
Fig. 3 is the decomposition diagram of the utility model.
Specific embodiment
With reference to Fig. 1~Fig. 3, the utility model is a kind of vapour-pressure type weighing device, including：
Weigh air cushion 1, can inflation/deflation, foldable folding and unfolding after deflation；
Shell 2 has a dial 3 on shell 2；
Pointer 4 is installed in rotation in shell 2；
Balance driving mechanism can rely on the pressure-driven pointer 4 weighed in air cushion 1 to rotate.It weighs in the utility model
Air cushion 1 is for placing determinand, and placing the air pressure weighed in air cushion 1 before and after determinand can change, the air pressure weighed in air cushion 1
Variation can be converted by balance driving mechanism, and driving pointer 4 rotates, and determinand weight can be extrapolated by air pressure difference,
Cooperation dial 3 can show determinand weight, very convenient, be not required to, by electric energy, to putting ground no requirement (NR), survey
Can will weigh gas discharge in air cushion 1 later, and then can be reduced and taken up space with folding and retraction.
As shown in the figure, the balance driving mechanism includes connection tracheae 5, piston rod 6, rack 7, drive rod 8 and zeroing group
Part, described connection 5 one end of tracheae are connected with air cushion 1 of weighing, and the other end is connect with shell 2, and 6 one end of piston rod is located at connection tracheae
In 5, piston rod 6 is connect with connecting the cooperation of 5 inner wall of tracheae, 6 other end of piston rod with rack 7, and drive rod 8 is fixed with pointer 4 to be connected
It connects, 8 side wall of drive rod is provided with gear 14, and wheel and rack 7 engages, and the zeroing component is acted on rack 7.It is described to weigh
Air cushion 1 has an air outlet adapter 9, and air outlet adapter 9 is internally provided with internal thread, and the connection tracheae 5 is inserted into the air outlet adapter 9
It is interior, and connect tracheae 5 and the insert division is provided with external screw thread；Above structure can realize air cushion 1 of weighing with connecting tracheae 5
It quickly disconnects, conducive to folding and retraction；In order to ensure accuracy of detection, on piston rod 6 with connect at 5 inner wall cooperation of tracheae be provided with it is close
Seal 10.The specific operating principle of balance driving mechanism is as follows, and after air cushion 1 of weighing is inflated, by returning to zero, pointer 4 is transferred to by component
Then determinand is placed on and weighs on air cushion 1 by zero-bit, determinand squeezes air cushion 1 of weighing so that and air pressure inside increases, and then
Piston rod 6 is pushed, piston rod 6 action band carry-over bar 7 acts, rack 7 so drive drive rod 8 rotate, drive rod 8 drive refers to
Needle 4 rotates, and determinand weight is shown.
As shown in the figure, the zeroing component includes spring 11, fixing piece 12 and adjusting nut 13,7 back of rack connects
A connecting rod is connected to, the piston rod 6, which is correspondingly connected on bar, is provided with connecting hole, and connecting hole is inserted into 15 one end of connecting rod, another
11 left side of spring is inserted at end, and location hole is provided on fixing piece 12, and location hole is inserted on the right side of spring 11, and fixing piece 12 is slidably
Ground is arranged in shell 2, and adjusting nut 13 is located on the side wall of shell 2, and adjusting nut 13 is abutted with fixing piece 12.It needs to return to zero
When, rotation adjusting nut 13 can be with the pretightning force of adjustment spring 11, and then adjusts the position of pointer 4, is located at zero-bit.
Above-described embodiment is the preferred embodiment of the utility model, and the utility model can also have other embodiments.Ability
The technical staff in domain can also make equivalent variations or replacement without departing from the spirit of the present invention, these equivalent changes
Type or replacement are all contained in the range set by the application claim.
Claims (5)
1. a kind of vapour-pressure type weighing device, it is characterised in that including：
Weigh air cushion, can inflation/deflation, foldable folding and unfolding after deflation；
Shell has a dial on shell；
Pointer is installed in rotation in shell；
Balance driving mechanism can rely on the pressure-driven indicators turn weighed in air cushion.
2. a kind of vapour-pressure type weighing device as described in claim 1, it is characterised in that the balance driving mechanism includes connection
Tracheae, piston rod, rack, drive rod and zeroing component, described connection tracheae one end are connected with air cushion of weighing, the other end and shell
Connection, piston rod one end are located at connection tracheal strips, and piston rod connects with connecting inner surface of trachea cooperation, the piston rod other end with rack
It connects, drive rod is fixedly connected with pointer, and drive rod side wall is provided with gear, wheel and rack engagement, the zeroing component effect
On rack.
3. a kind of vapour-pressure type weighing device as claimed in claim 2, it is characterised in that the zeroing component includes spring, fixation
Part and adjusting nut, the rack back are connected with a connecting rod, and the piston rod, which is correspondingly connected on bar, is provided with connecting hole, even
Connecting hole is inserted into extension bar one end, and the other end is inserted on the left of spring, and location hole is provided on fixing piece, and positioning is inserted on the right side of spring
Hole, fixing piece are slidably disposed in shell, and adjusting nut is located on the side wall of shell, and adjusting nut is abutted with fixing piece.
4. a kind of vapour-pressure type weighing device as claimed in claim 2, it is characterised in that the air cushion of weighing connects with an outlet
Head, air outlet adapter are internally provided with internal thread, and the connection tracheae is inserted into the air outlet adapter, and connect tracheae in the insertion
Place is provided with external screw thread.
5. a kind of vapour-pressure type weighing device as claimed in claim 2, it is characterised in that with connecting tracheal strips on the piston rod
Sealing ring is provided at wall cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721570477.9U CN207515876U (en) | 2017-11-21 | 2017-11-21 | A kind of vapour-pressure type weighing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721570477.9U CN207515876U (en) | 2017-11-21 | 2017-11-21 | A kind of vapour-pressure type weighing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207515876U true CN207515876U (en) | 2018-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721570477.9U Active CN207515876U (en) | 2017-11-21 | 2017-11-21 | A kind of vapour-pressure type weighing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN207515876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830915A (en) * | 2017-11-21 | 2018-03-23 | 广东永衡良品科技有限公司 | A kind of vapour-pressure type weighing device |
-
2017
- 2017-11-21 CN CN201721570477.9U patent/CN207515876U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830915A (en) * | 2017-11-21 | 2018-03-23 | 广东永衡良品科技有限公司 | A kind of vapour-pressure type weighing device |
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