CN210418412U - Flow control switch for soft fluid conveying pipe - Google Patents
Flow control switch for soft fluid conveying pipe Download PDFInfo
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- CN210418412U CN210418412U CN201920884632.7U CN201920884632U CN210418412U CN 210418412 U CN210418412 U CN 210418412U CN 201920884632 U CN201920884632 U CN 201920884632U CN 210418412 U CN210418412 U CN 210418412U
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Abstract
The utility model provides a flow control switch of a soft fluid conveying pipeline, which comprises an outer cylinder and an inner cylinder; the outer cylinder is sleeved outside the inner cylinder and moves up and down along the axis by a certain stroke; the top wall of the outer cylinder extends into the inner cylinder to form an extrusion part; the extrusion part is provided with a first through hole along the axis of the outer cylinder, and a conveying pipe penetrates through the first through hole; the bottom wall of the inner cylinder is provided with a second through hole which is coaxial with the first through hole; an elastic switch is fixed in the inner cylinder cavity and comprises a first elastic part and a second elastic part, and the first elastic part is abutted against the second elastic part to block the material conveying pipe in a natural state; the outer barrel is pressed downwards, the outer barrel drives the extrusion part to move downwards to extrude the first elastic part and the second elastic part, the first elastic part and the second elastic part are separated, and the conveying pipeline is communicated up and down. Compared with the prior art, through the cooperation of inside and outside barrel, realize that extrusion portion provides the extrusion force to elastic switch, elastic switch provides the restoring force to extrusion portion, and structural design is ingenious, and simple structure is exquisite, convenient operation, and the reaction is rapid.
Description
Technical Field
The utility model relates to a material conveying flow control technical field is a soft fluid conveying pipeline flow control switch particularly.
Background
The material conveying is usually carried out by means of a conveying pipe, and particularly, gas, liquid, powder, even colloid and particles can be conveyed through the conveying pipe. In the prior art, a roller type switch or a wedge-shaped sliding type switch is usually adopted to control flow, and the control switch is firstly complex in structure, low in control precision and slow in response speed. With the development of science and technology, the requirements of various fields on precision and response speed are higher and higher, for example, in the fields of manual operation such as coating, sizing, drawing, food processing and medical treatment, the switch is required to respond quickly for the manual operation, and the material output quantity is controllable. Therefore, an adjusting switch with quick response and easily controlled flow is urgently needed in the manual operation industry.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a soft fluid conveying pipeline flow control switch, provide a flow control switch of quick response, easy control for the manual operation trade.
The utility model discloses an above-mentioned technical problem is solved to following technical scheme:
a flow control switch of a soft fluid conveying pipeline comprises an outer cylinder and an inner cylinder; the outer cylinder is sleeved outside the inner cylinder and moves up and down along the axis by a certain stroke; the top wall of the outer cylinder extends into the inner cylinder to form an extrusion part; the extruding part is provided with a first through hole along the axis of the outer cylinder, and a conveying pipe penetrates through the first through hole; the bottom wall of the inner cylinder is provided with a second through hole; the material conveying pipe penetrates through the first through hole and penetrates out of the second through hole; an elastic switch is fixed in the inner cylinder cavity and comprises a first elastic part and a second elastic part, and the first elastic part and the second elastic part are respectively positioned at two sides of the material conveying pipe; in a natural state, the first elastic part and the second elastic part are abutted to block the material conveying pipe; the outer barrel is pressed downwards, the outer barrel drives the extrusion part to move downwards to extrude the first elastic part and the second elastic part, the first elastic part and the second elastic part are separated, and the conveying pipeline is communicated up and down.
Preferably, the elastic part further comprises a base, the base is fixed on the inner side of the bottom wall of the inner cylinder, and a third channel coaxial with the second through hole is formed in the base and is used for a conveying pipe to pass through; the first elastic part and the second elastic part are elastic pieces and are integrally formed with the base, the first elastic part and the second elastic part are distributed on two sides of the base, the first elastic part and the second elastic part are abutted under a natural state, at least one abutting line is arranged, the width of the abutting line is wide, the width of the abutting line is flattened with the width of the conveying pipeline, and the abutting line is parallel to one diameter of the third through hole.
Preferably, the first elastic part and the second elastic part are both bent or arc-shaped elastic sheets which are arranged on two sides of the base in a mirror image manner, and the bent parts are in arc surface transition; when the two parts are abutted, an X-shaped or arc top opposite structure is formed.
Preferably, the width of the bottom end of the extrusion part is smaller than the width of an opening at the upper part of the X-shaped structure or the arc top relative structure, when the extrusion part is pressed downwards, the bottom end of the extrusion part descends into the opening at the upper part of the X-shaped structure or the arc top relative structure, and the elastic sheets at two sides of the extrusion part are separated; after the external force is removed, the extrusion part is lifted under the action of the tightening force of the elastic sheet.
Preferably, the section of the lower end of the extrusion part is of a V-shaped structure and is centrally positioned at the upper opening of the X-shaped structure or the arc top opposite structure.
Preferably, the outer wall of the bottom of the inner cylinder is positioned around the second through hole, and a joint connected with the discharging nozzle is arranged; after the discharge nozzle is fixedly connected with the joint, the material conveying pipe is communicated with a material channel of the discharge nozzle.
Preferably, the bottom of the outer cylinder is open, and the inner diameter of the outer cylinder is the same as the outer diameter of the inner cylinder; after the outer cylinder and the inner cylinder are assembled, the V-shaped structure is abutted and matched with the upper part of the X-shaped structure under the closing posture of the elastic switch, and the top of the inner cylinder has a height difference from the inner wall of the top of the outer cylinder for the outer cylinder to travel.
Preferably, an annular cavity for inserting the inner cylinder is arranged between the extrusion part and the inner wall of the outer cylinder; and the extrusion part is sleeved with a return spring, and the return spring is limited in the annular cavity by the inner cylinder.
Preferably, the inner wall of the outer cylinder and the outer wall of the inner cylinder are respectively provided with a vertical limiting strip and a limiting groove; the limiting strip is matched with the limiting groove.
Preferably, the bottom wall of the outer cylinder horizontally extends out of the baffle towards the center direction; the inner barrel is limited between the baffle and the top wall of the outer barrel.
The utility model has the advantages that:
1. through the cooperation of inside and outside barrel, realize that extrusion portion provides the extrusion force to elastic switch, elastic switch provides the power that resets to extrusion portion, and structural design is ingenious, and simple structure is exquisite, convenient operation, and the reaction is rapid. The liquid flow can be controlled according to the hand feeling in the construction and use process;
2. the elastic sheet of the elastic switch and the base are integrally formed, and the width of the abutting line is large enough to completely block the material conveying pipe;
3. the cambered surface of the bent part of the elastic sheet is in transition, namely the bent part is passivated, so that the feed delivery pipe is prevented from being cut off or damaged;
4. the X-shaped elastic sheet is easy to manufacture;
5. the bottom end of the extrusion part adopts a V-shaped structure, is matched with the opening of the X-shaped upper part, is convenient for applying extrusion force, and is abutted against the X-shaped upper part in a natural state, so that the stroke of the outer barrel is reduced;
6. through the matching of the limiting strip and the limiting groove, the relative rotation of the inner barrel and the outer barrel is avoided, and the relative position fixation of the extrusion part and the elastic switch is ensured;
7. through the setting of baffle, can be spacing the inner tube in the urceolus, the wholeness is stronger.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;
fig. 3 is a schematic perspective view of an X-shaped elastic switch in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of an extrusion part in three different shapes in embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of a handheld posture in operation according to embodiment 1 of the present invention;
FIG. 6 is a schematic view showing a sectional structure of an adjusting switch in the case where a feed delivery pipe is vertically connected in embodiment 1 of the present invention;
FIG. 7 is a schematic view showing a sectional structure of an adjusting switch in case of blocking the feed delivery pipe vertically in embodiment 1 of the present invention;
fig. 8 is a schematic side view of an elastic switch according to embodiment 2 of the present invention;
fig. 9 is a schematic side view of an elastic switch according to embodiment 3 of the present invention;
fig. 10 is a schematic structural view of an adjusting switch of the present invention in embodiment 4, in which a return spring is added;
fig. 11 is a schematic structural view of a baffle plate added to the regulating switch in embodiment 5 of the present invention;
fig. 12 is a schematic view of a radial cross-sectional structure of an outer cylinder and an inner cylinder of a regulating switch in embodiment 6 of the present invention.
Detailed Description
In order to further understand and appreciate the structural features and advantages of the present invention, preferred embodiments and the accompanying drawings are described in detail as follows:
example 1
As shown in fig. 1 and 2, a soft fluid delivery conduit flow control switch comprises an outer cylinder 21 and an inner cylinder 22; the outer cylinder 21 is sleeved outside the inner cylinder 22, and the outer cylinder 21 moves up and down along the axis by a certain stroke. The cross-sectional shapes of the inner cylinder 22 and the outer cylinder 21 may be circular, square, polygonal, or the like. This embodiment gives a circular drawing example. A squeezing part 211 extends into the inner cylinder 22 from the top wall of the outer cylinder 21; the pressing portion 211 is a hard columnar structure, and the bottom of the pressing portion is wedge-shaped, conical, V-shaped, and may even be cylindrical or prismatic, and this embodiment gives an example of the drawing of the V-shape. The extrusion part 211 is provided with a first through hole 212 along the axis of the outer cylinder 21 for the transmission pipe to pass through; the bottom wall of the inner cylinder 22 is provided with a second through hole 221 which is coaxial with the first through hole 212; the feed delivery pipe penetrates through the first through hole 212 and penetrates out of the second through hole 221.
As shown in fig. 2 and 3, an elastic switch 23 is fixed in the cavity of the inner cylinder 22, the elastic switch 23 includes a first elastic portion 231, a second elastic portion 232, and a base 233, the base 233 is fixed inside the bottom wall of the inner cylinder 22, the base 233 is provided with a third through hole 234 coaxial with the second through hole for the transmission pipe 24 to pass through; the first elastic part 231 and the second elastic part 232 are both bent elastic sheets and are integrally formed with the base 233, and the bent parts are cambered surface transition sections and passivated and abutted positions so as to avoid cutting off the conveying pipe 24. The first elastic part 231 and the second elastic part 232 are symmetrically distributed on two sides of the base 233, and under the condition of no external force, the first elastic part 231 and the second elastic part 232 are in linear abutting joint to form an X-shaped structure, and the abutting joint line is parallel to one diameter of the third through hole 234, so that the material conveying pipe 24 is radially intercepted. The material conveying pipe 24 penetrates through the first through hole 212, passes through the space between the first elastic part 231 and the second elastic part 232, passes through the third through hole 234, and penetrates out of the second through hole 221, namely the first elastic part 231 and the second elastic part 232 are respectively positioned at two sides of the material conveying pipe; when the extrusion part 211 is pressed downwards, the V-shaped structure goes downwards, the elastic sheets at the two sides are extruded and extruded to be separated, and the material conveying pipe 24 is conducted up and down; when the external force of the pressing portion 211 is removed, the pressing portion 211 drives the outer cylinder 21 to reset under the action of the tightening force of the elastic sheet, and the first elastic portion 231 and the second elastic portion 232 are abutted to block the material conveying pipe 24.
As shown in fig. 4, no matter the bottom end of the pressing portion 211 is V-shaped, wedge-shaped, conical, or even cylindrical or prism-shaped, as long as the width of the bottom end is smaller than the opening width of the upper structure of the two elastic pieces, when an external force is applied, the bottom end of the pressing portion 211 can apply opposite pressing forces to the upper portions of the two elastic pieces. In order to facilitate the assembly with the discharging nozzle 25, a joint 222 connected with the discharging nozzle 25 is arranged on the periphery of the second through hole 221 on the outer wall of the bottom of the inner cylinder 22; after the discharging nozzle 25 is connected and fixed with the joint 222, the material conveying pipe 24 is communicated with the material channel of the discharging nozzle 25. The connector 222 provided by the embodiment is a cylinder with internal threads, and is in threaded connection with the interface with external threads of the discharging nozzle 25, and the threaded connection mode is simple and easy to operate, and has a good sealing effect.
After the external force for pressing the outer cylinder 21 is removed, the pressing portion 211 is tightly abutted to the upper portion of the elastic switch 23, and the pressing portion 211 is lifted under the action of the tightening force of the two elastic sheets, so that the outer cylinder 21 is driven to reset.
In this embodiment, the outer cylinder 21 and the inner cylinder 22 are in a cylindrical structure, the bottom end of the outer cylinder 21 is in an open state, and the top end of the inner cylinder 22 is in an open state, so that the sleeving operation is simple and convenient, and the assembly and installation of the feed delivery pipe are convenient. In addition, the annular cavity 20 formed between the squeezing portion 211 and the inner wall of the inner cylinder 22 is used for accommodating the cylinder wall of the inner cylinder 22, and a certain height difference exists between the top of the cylinder wall of the inner cylinder 22 and the highest point of the annular cavity 20, so that the stroke requirement when the outer cylinder 21 is pressed downwards is met.
The assembling method comprises the following steps:
assembling a conveying pipe 24: the outer cylinder 21 is pressed first, the elastic switch 23 is turned on, then one end of the handheld material conveying pipe 24 penetrates through the first through hole 212, passes through the space between the two elastic sheets, penetrates out of the third through hole 234 and the second through hole 221, and then the end of the material conveying pipe 24 is in butt joint with the material discharging nozzle 25 (a luer butt joint mode can be adopted), and is fixed through the joint 222.
Replacement of the delivery pipe 24: the discharging nozzle 25 is removed, then the outer cylinder 21 is pressed, the elastic switch 23 is opened, and the material conveying pipe 24 is pulled out.
The working principle is as follows: as shown in fig. 5, 6 and 7, in operation, the outer cylinder 21 is held (similar to a pen holding posture) to align the discharge nozzle 25 (generally, the discharge nozzle) with the receiving position, the outer cylinder 21 is pressed down by the supporting force of the receiving position, the elastic switch 23 is opened, and the outer cylinder 21 is kept pressed down all the time during material delivery. After the discharging nozzle 25 leaves the receiving position, the supporting force disappears, the outer cylinder 21 resets, and the elastic switch 23 is closed.
Example 2
As shown in fig. 8, the difference between the present embodiment and embodiment 1 is that the two elastic pieces can also be arc-shaped elastic pieces, and the arc tops are abutted oppositely.
Example 3
As shown in fig. 9, the difference between this embodiment and embodiment 1 is that the two elastic sheets can be elastic sheets that are bent many times, for example, bent twice, more vividly, one elastic sheet is W that is inverted on the left side, the other elastic sheet is W that is inverted on the right side, and there are two abutting lines when abutting.
Example 4
As shown in fig. 10, the present embodiment is different from the above embodiments in that a return spring 201 is sleeved on the pressing portion 211, and the return spring 201 is limited in the annular cavity by the inner cylinder 22. The reset requirement of the outer cylinder 21 is responded more quickly.
Example 5
As shown in fig. 11, the present embodiment is different from the above embodiments in that in order to facilitate the separation of the inner cylinder 22 and the outer cylinder 21, a baffle 214 extends from the bottom wall of the outer cylinder 21 to the center, and the inner cylinder 22 is limited between the baffle 214 and the top wall of the outer cylinder 21.
Example 6
As shown in fig. 12, if the outer cylinder 21 and the inner cylinder 22 are cylindrical, in order to avoid the relative rotation between the outer cylinder 21 and the inner cylinder 22, the inner wall of the outer cylinder 21 and the outer wall of the inner cylinder 22 are respectively provided with a vertical limiting strip 213 and a limiting groove; the limiting strip 213 is matched with the limiting groove 223 to realize the relative fixation of the positions of the outer cylinder 21 and the inner cylinder 22, so that the extrusion part 211 is accurately matched with the elastic switch 23. If a prismatic cylinder is used, the stopper bar 213 and the stopper groove 223 need not be provided.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A soft fluid conveying pipeline flow control switch is characterized in that: comprises an outer cylinder and an inner cylinder; the outer cylinder is sleeved outside the inner cylinder and moves up and down along the axis by a certain stroke; the top wall of the outer cylinder extends into the inner cylinder to form an extrusion part; the extruding part is provided with a first through hole along the axis of the outer cylinder, and a conveying pipe penetrates through the first through hole; the bottom wall of the inner cylinder is provided with a second through hole; the material conveying pipe penetrates through the first through hole and penetrates out of the second through hole; an elastic switch is fixed in the inner cylinder cavity and comprises a first elastic part and a second elastic part, and the first elastic part and the second elastic part are respectively positioned at two sides of the material conveying pipe; in a natural state, the first elastic part and the second elastic part are abutted to block the material conveying pipe; the outer barrel is pressed downwards, the outer barrel drives the extrusion part to move downwards to extrude the first elastic part and the second elastic part, the first elastic part and the second elastic part are separated, and the conveying pipeline is communicated up and down.
2. The soft fluid delivery spout flow control switch of claim 1, wherein: the elastic part also comprises a base, the base is fixed on the inner side of the bottom wall of the inner cylinder, and a third channel coaxial with the second through hole is formed in the base and is used for a conveying pipe to pass through; the first elastic part and the second elastic part are elastic pieces and are integrally formed with the base, the first elastic part and the second elastic part are distributed on two sides of the base, the first elastic part and the second elastic part are abutted under a natural state, at least one abutting line is arranged, the width of the abutting line is wide, the width of the abutting line is flattened with the width of the conveying pipeline, and the abutting line is parallel to one diameter of the third through hole.
3. The soft fluid delivery spout flow control switch of claim 2, wherein: the first elastic part and the second elastic part are both bent or arc-shaped elastic sheets which are arranged on two sides of the base in a mirror image mode, and the bent parts are in arc surface transition; when the two parts are abutted, an X-shaped or arc top opposite structure is formed.
4. The soft fluid delivery spout flow control switch of claim 3, wherein: the width of the bottom end of the extrusion part is smaller than the width of an opening at the upper part of the X-shaped structure or the arc top relative structure, when the extrusion part is pressed down, the bottom end of the extrusion part descends into the opening at the upper part of the X-shaped structure or the arc top relative structure, and the elastic sheets at two sides are extruded to be separated; after the external force is removed, the extrusion part is lifted under the action of the tightening force of the elastic sheet.
5. The soft fluid delivery spout flow control switch according to any one of claims 1 to 4, wherein: the section of the lower end of the extrusion part is of a V-shaped structure and is centrally positioned at an opening at the upper part of the X-shaped structure or the arc top opposite structure.
6. The soft fluid delivery spout flow control switch according to any one of claims 1 to 4, wherein: a joint connected with the discharging nozzle is arranged on the outer wall of the bottom of the inner cylinder and around the second through hole; after the discharge nozzle is fixedly connected with the joint, the material conveying pipe is communicated with a material channel of the discharge nozzle.
7. The soft fluid delivery spout flow control switch of claim 5, wherein: the bottom of the outer cylinder is open, and the inner diameter of the outer cylinder is the same as the outer diameter of the inner cylinder; after the outer cylinder and the inner cylinder are assembled, the V-shaped structure is abutted and matched with the upper part of the X-shaped structure under the closing posture of the elastic switch, and the top of the inner cylinder has a height difference from the inner wall of the top of the outer cylinder for the outer cylinder to travel.
8. The soft fluid delivery spout flow control switch according to any one of claims 1 to 4, wherein: an annular cavity for inserting the inner cylinder is formed between the extrusion part and the inner wall of the outer cylinder; and the extrusion part is sleeved with a return spring, and the return spring is limited in the annular cavity by the inner cylinder.
9. The soft fluid delivery spout flow control switch according to any one of claims 1 to 4, wherein: the inner wall of the outer barrel and the outer wall of the inner barrel are respectively provided with a limiting strip and a limiting groove along the axial direction; the limiting strip is matched with the limiting groove.
10. The soft fluid delivery spout flow control switch according to any one of claims 1 to 4, wherein: a baffle extends out of the bottom wall of the outer barrel horizontally towards the center direction; the inner barrel is limited between the baffle and the top wall of the outer barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920884632.7U CN210418412U (en) | 2019-06-12 | 2019-06-12 | Flow control switch for soft fluid conveying pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920884632.7U CN210418412U (en) | 2019-06-12 | 2019-06-12 | Flow control switch for soft fluid conveying pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210418412U true CN210418412U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920884632.7U Expired - Fee Related CN210418412U (en) | 2019-06-12 | 2019-06-12 | Flow control switch for soft fluid conveying pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210418412U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927975A (en) * | 2020-08-03 | 2020-11-13 | 中煤科工集团重庆研究院有限公司 | Positive pressure pipeline automatic drainage device |
-
2019
- 2019-06-12 CN CN201920884632.7U patent/CN210418412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927975A (en) * | 2020-08-03 | 2020-11-13 | 中煤科工集团重庆研究院有限公司 | Positive pressure pipeline automatic drainage device |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |
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| CF01 | Termination of patent right due to non-payment of annual fee |