CN212645795U - Fluid metering mechanism - Google Patents
Fluid metering mechanism Download PDFInfo
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- CN212645795U CN212645795U CN202021872450.7U CN202021872450U CN212645795U CN 212645795 U CN212645795 U CN 212645795U CN 202021872450 U CN202021872450 U CN 202021872450U CN 212645795 U CN212645795 U CN 212645795U
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- 239000012530 fluid Substances 0.000 title claims abstract description 55
- 230000007246 mechanism Effects 0.000 title claims abstract description 35
- 230000007704 transition Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model provides a fluid metering mechanism. The fluid metering mechanism comprises a metering rod, a metering rod driving assembly, a cavity, an inlet, a flow channel, an upper channel, an outlet and a change-over switch. The metering rod driving component can drive the metering rod to do linear reciprocating motion in the cavity when working. The inlet is communicated with the cavity, the cavity is communicated with one end of the flow channel through the upper channel, the other end of the flow channel is communicated with the outlet, and the selector switch is used for controlling the opening and closing of the inlet and the outlet. The fluid inlet and the fluid outlet of the mechanism are separated and are provided with the upper channel and the flow channel, the fluid and the air in the cavity are discharged in time after passing through the upper channel and the flow channel, and the air cannot be accumulated in the cavity. The utility model provides an adopt the trouble operation that artifical manual exhaust exists, problem that exhaust time is long. Moreover, after the mechanism carries out multiple exhaust operations, air mixed in the fluid can be completely exhausted, the metering precision is not affected, and the metering precision is improved.
Description
Technical Field
The utility model belongs to fluid metering instrument field especially relates to a fluid metering mechanism.
Background
In the operations of dual-component glue encapsulation, lubricating grease filling, heat-conducting silicone grease coating and the like in the industries of automotive electronics, 3C electronics, new energy and the like, various types of fluids are required.
In order to make the dosage of the fluid accurate, the existing fluid metering instrument can realize the quantitative of the fluid, but the existing fluid metering instrument only has a cavity in the structure, and an exhaust hole is arranged above the cavity and used for the staff to manually exhaust the air at the upper part of the cavity. If the air entrained by the fluid cannot be completely exhausted in the metering process, the air can be accumulated on the upper part of the cavity, and the metering precision and the metering effect are influenced. In order to save time and improve metering accuracy, it is necessary to develop a new type of fluid metering apparatus.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a fluid metering mechanism is provided, the exhaust mode exhaust speed that aims at solving the fluid metering instrument among the prior art is slow to and the not thorough problem of exhaust.
The utility model is realized in such a way, a fluid metering mechanism comprises a metering rod, a metering rod driving component, a cavity, an inlet, a flow passage, an upper channel, an outlet and a change-over switch; the cavity is provided with a first end and a second end which are opposite, the metering rod extends into the cavity from the first end of the cavity, and the metering rod driving assembly can drive the metering rod to do linear reciprocating motion in the cavity when working; the inlet is communicated with the second end of the cavity, the first end of the cavity is communicated with one end of the flow channel through the upper channel, and the other end of the flow channel is communicated with the outlet; the change-over switch is used for controlling the opening and closing of the inlet and the outlet.
Further, the cavity is vertically arranged, the first end is the top end of the cavity, and the second end is the bottom end of the cavity; one end of the upper channel is communicated with the first end of the cavity, the other end of the upper channel is communicated with the top end of the flow channel, and the bottom end of the flow channel is communicated with the outlet.
Further, the fluid metering mechanism further comprises a main body block, and the cavity is arranged in the main body block.
Further, the upper channel is transversely arranged in the main body block, and the flow channel is vertically arranged in the main body block.
Further, the upper channel and/or the flow channel are/is an external pipeline.
Further, the fluid metering mechanism further comprises a valve body, and the inlet and the outlet are both arranged in the valve body; the valve body is internally provided with a transverse mounting hole, the change-over switch is provided with a rotating shaft, the rotating shaft is mounted in the transverse mounting hole, the rotating shaft is provided with a first channel and a second channel which are distributed at intervals along the axial direction of the rotating shaft, when the rotating shaft is rotated to a first angle range, the first channel is communicated with the inlet, and the second channel is staggered with the outlet; when the rotating shaft is rotated to a second angle range, the first channel and the inlet are staggered, and the second channel is communicated with the outlet.
Furthermore, a transition cylinder is arranged in the valve body, the transition cylinder is embedded in the transverse mounting hole, and the rotating shaft is inserted in the transition cylinder; the transition cylinder is provided with two first through holes and two second through holes which are distributed at intervals along the axial direction of the transition cylinder, when the rotating shaft is rotated to a first angle range, the first channel is communicated with the two first through holes, and the second channel is mutually staggered with the two second through holes; when the rotating shaft is rotated to a second angle range, the first channel and the two first through holes are staggered, and the second channel is communicated with the two second through holes.
Furthermore, the first channel is L-shaped, the second channel is in a straight shape, the central lines of the two first through holes are perpendicular to each other, and the two second through holes are opposite to each other.
Furthermore, two ends of the transverse mounting hole are respectively provided with an annular embedding groove, and a sealing ring is clamped between the outer periphery of the transition cylinder and the annular embedding groove.
Compared with the prior art, the utility model, beneficial effect lies in:
the utility model discloses a fluid metering mechanism makes fluidic entry and export separation to increased passageway and runner, after the fluid got into the cavity, the air in fluid and the cavity in time discharged after through passageway and runner, did not have gaseous the collection together in the cavity. The embodiment solves the problems of troublesome operation and long exhaust time of manual exhaust. Moreover, after the mechanism carries out multiple exhaust operations, air mixed in the fluid can be completely exhausted, the metering precision is not affected, and the metering precision is improved.
Drawings
Fig. 1 is a schematic perspective view of a fluid metering mechanism according to an embodiment of the present invention;
FIG. 2 is an exploded schematic view of the fluid metering mechanism of FIG. 1;
FIG. 3 is a schematic longitudinal cross-sectional view of the fluid metering mechanism of FIG. 1;
FIG. 4 is a schematic view of the fluid metering mechanism of the present embodiment with the inlet open;
fig. 5 is a schematic view of the outlet of the fluid metering mechanism of the present embodiment when open.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 3, a preferred embodiment of a fluid metering mechanism according to the present invention is shown, which includes a metering rod 1, a metering rod driving assembly, a cavity 2, an inlet 3, a flow passage 4, an upper channel 5, an outlet 6 and a switch 7.
The cavity 2 is provided with a first end and a second end which are opposite to each other, the metering rod 1 extends into the cavity 2 from the first end of the cavity 2, and the metering rod driving assembly can drive the metering rod 1 to do linear reciprocating motion in the cavity 2 when working. The inlet 3 is communicated with the second end of the cavity 2, the first end of the cavity 2 is communicated with one end of the flow channel 4 through the upper channel 5, the other end of the flow channel 4 is communicated with the outlet 6, and the positions of the outlet 6 and the inlet 3 are both close to the second end of the cavity 2. The switch 7 is used for controlling the opening and closing of the inlet 3 and the outlet 6.
For the convenience of explanation, this embodiment takes the vertical overall arrangement of mechanism as an example, and is right to the technical scheme of the utility model for a detailed description:
the cavity 2 of the present embodiment is vertically arranged and the upper channel 5 is horizontally arranged. I.e. the first end is the top end of the cavity 2 and the second end is the bottom end of the cavity 2. The left end of the upper channel 5 is communicated with the first end of the cavity 2, the right end of the upper channel 5 is communicated with the top end of the flow channel 4, and the bottom end of the flow channel 4 is communicated with the outlet 6.
The cavity 2, the upper channel 5 and the flow channel 4 of the fluid metering mechanism are all arranged in a main body block 10. It will be readily understood that the upper channel 5 and the flow channel 4 may also be formed as external pipes.
Further, the fluid metering mechanism of the present embodiment further includes a valve body 20, and the inlet 3 and the outlet 6 are both disposed in the valve body 20. The valve body 20 is provided with a transverse mounting hole 201, the switch 7 is provided with a rotating shaft 71, and the rotating shaft 71 is mounted in the transverse mounting hole 201.
The rotating shaft 71 is provided with a first channel 711 and a second channel 712 which are distributed at intervals along the axial direction, when the rotating shaft 71 is rotated to a first angle range, the first channel 711 is communicated with the inlet 3, and the second channel 712 and the outlet 6 are staggered; when the rotating shaft 71 is rotated to the second angle range, the first passage 711 and the inlet 3 are staggered, and the second passage 712 communicates with the outlet 6.
The valve body 20 is further provided with a transition cylinder 8, and in the embodiment, the transition cylinder 8 is locked in the valve body 20 by a screw 9. The transition cylinder 8 is embedded in the transverse mounting hole 201, and the rotating shaft 71 is inserted in the transition cylinder 8. The transition cylinder 8 has two first through holes 81 and two second through holes 82 spaced apart in the axial direction thereof. When the rotating shaft 71 is rotated to the first angle range, the first passage 711 communicates with the two first through holes 81, and the second passage 712 and the two second through holes 82 are staggered with each other, so that the inlet 3 is connected and the outlet 6 is closed. When the rotating shaft 71 is rotated to the second angle range, the first channel 711 and the two first through holes 81 are staggered, the second channel 712 is communicated with the two second through holes 82, at this time, the outlet 6 is communicated, and the inlet 3 is closed.
In the embodiment, the first channel 711 is L-shaped, the second channel 712 is in a straight shape, the center lines of the two first through holes 81 are perpendicular to each other, and the two second through holes 82 are opposite to each other.
In order to prevent the fluid from leaking, the two ends of the horizontal mounting hole 201 are respectively provided with an annular embedding groove 202, and a sealing ring 203 is clamped between the outer periphery of the transition cylinder 8 and the annular embedding groove 202.
The steps of implementing the exhaust-free metering by applying the fluid metering mechanism of the embodiment are as follows:
s1, driving the switch 7 (which may be driven by a driving component or manually), so as to open the inlet 3 and close the outlet 6 (as shown in fig. 4);
s2, the metering rod driving assembly drives the metering rod 1 to move upwards, and fluid enters the cavity 2 through the inlet 3;
s3, after the metering rod 1 reaches the target position (the real-time volume of the fluid in the cavity 2 can be known through the metering rod 1);
s4, driving the switch 7 again to close the inlet 3 and open the outlet 6 (as shown in fig. 5);
s5, the metering rod driving assembly drives the metering rod 1 to move downwards, and the fluid and the air in the cavity 2 enter the flow channel 4 through the upper channel 5;
s6, discharging the fluid and the air in the cavity 2 from the outlet 6 after passing through the flow passage 4;
s7, repeating the steps S1-S6 for a plurality of times until the air is completely discharged, and ensuring that no air remains in the whole mechanism;
s8, continuously circulating the steps S1-S6 to realize quantitative discharge of the flow; air entrained in the subsequent fluid is discharged in real time through the flow passage 4, and no air is accumulated in the cavity 2.
In summary, the fluid metering mechanism of the present embodiment separates the inlet 3 and the outlet 6 of the fluid, and adds the upper channel 5 and the flow channel 4, so that after the fluid enters the cavity 2, the fluid and the air in the cavity 2 are discharged in time through the upper channel 5 and the flow channel 4, and no gas is accumulated in the cavity 2. The embodiment solves the problems of troublesome operation and long exhaust time of manual exhaust. Moreover, after the mechanism carries out multiple exhaust operations, air mixed in the fluid can be completely exhausted, the metering precision is not affected, and the metering precision is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A fluid metering mechanism is characterized by comprising a metering rod, a metering rod driving assembly, a cavity, an inlet, a flow channel, an upper channel, an outlet and a selector switch; the cavity is provided with a first end and a second end which are opposite, the metering rod extends into the cavity from the first end of the cavity, and the metering rod driving assembly can drive the metering rod to do linear reciprocating motion in the cavity when working; the inlet is communicated with the second end of the cavity, the first end of the cavity is communicated with one end of the flow channel through the upper channel, and the other end of the flow channel is communicated with the outlet; the change-over switch is used for controlling the opening and closing of the inlet and the outlet.
2. The fluid metering mechanism of claim 1, wherein the cavity is vertically disposed, the first end being a top end of the cavity and the second end being a bottom end of the cavity; one end of the upper channel is communicated with the first end of the cavity, the other end of the upper channel is communicated with the top end of the flow channel, and the bottom end of the flow channel is communicated with the outlet.
3. The fluid metering mechanism of claim 2, further comprising a body block, wherein the cavity is disposed within the body block.
4. The fluid metering mechanism of claim 3, wherein the upper channel is disposed laterally within the body block and the flow passage is disposed vertically within the body block.
5. A fluid metering mechanism as claimed in claim 3 wherein said upper channel and/or flow passage is an externally located conduit.
6. The fluid metering mechanism of claim 1, further comprising a valve body, wherein the inlet and the outlet are disposed within the valve body; the valve body is internally provided with a transverse mounting hole, the change-over switch is provided with a rotating shaft, the rotating shaft is mounted in the transverse mounting hole, the rotating shaft is provided with a first channel and a second channel which are distributed at intervals along the axial direction of the rotating shaft, when the rotating shaft is rotated to a first angle range, the first channel is communicated with the inlet, and the second channel is staggered with the outlet; when the rotating shaft is rotated to a second angle range, the first channel and the inlet are staggered, and the second channel is communicated with the outlet.
7. The fluid metering mechanism of claim 6, wherein a transition cylinder is further disposed in the valve body, the transition cylinder is embedded in the transverse mounting hole, and the rotating shaft is inserted in the transition cylinder; the transition cylinder is provided with two first through holes and two second through holes which are distributed at intervals along the axial direction of the transition cylinder, when the rotating shaft is rotated to a first angle range, the first channel is communicated with the two first through holes, and the second channel is mutually staggered with the two second through holes; when the rotating shaft is rotated to a second angle range, the first channel and the two first through holes are staggered, and the second channel is communicated with the two second through holes.
8. The fluid metering mechanism of claim 7, wherein the first channel is L-shaped, the second channel is in a straight shape, the center lines of the two first through holes are perpendicular to each other, and the two second through holes are opposite to each other.
9. The fluid metering mechanism of claim 7, wherein the transverse mounting hole is provided at each end thereof with an annular embedding groove, and a sealing ring is sandwiched between the outer periphery of the transition cylinder and the annular embedding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021872450.7U CN212645795U (en) | 2020-08-31 | 2020-08-31 | Fluid metering mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021872450.7U CN212645795U (en) | 2020-08-31 | 2020-08-31 | Fluid metering mechanism |
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| Publication Number | Publication Date |
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| CN212645795U true CN212645795U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021872450.7U Active CN212645795U (en) | 2020-08-31 | 2020-08-31 | Fluid metering mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212924A (en) * | 2020-08-31 | 2021-01-12 | 深圳市世椿智能装备股份有限公司 | A fluid metering mechanism and its realization method for free exhaust metering |
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2020
- 2020-08-31 CN CN202021872450.7U patent/CN212645795U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112212924A (en) * | 2020-08-31 | 2021-01-12 | 深圳市世椿智能装备股份有限公司 | A fluid metering mechanism and its realization method for free exhaust metering |
| CN112212924B (en) * | 2020-08-31 | 2025-03-07 | 深圳市世椿智能装备股份有限公司 | A fluid metering mechanism and a method for realizing the metering without exhaust |
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