CN216982562U - Venturi tube - Google Patents
Venturi tube Download PDFInfo
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- CN216982562U CN216982562U CN202220773790.7U CN202220773790U CN216982562U CN 216982562 U CN216982562 U CN 216982562U CN 202220773790 U CN202220773790 U CN 202220773790U CN 216982562 U CN216982562 U CN 216982562U
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- venturi
- opening
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Abstract
The application relates to the technical field of fertilization equipment, in particular to a venturi tube. The Venturi tube comprises a liquid inlet section, a throat section, a diffusion section and a control mechanism; the liquid inlet section, the throat section and the diffusion section are sequentially communicated, and the liquid inlet section and the diffusion section are in a shape gradually reduced towards the throat section; the lateral wall of larynx mouth section is formed with inhales the material mouth, and control mechanism includes backstop portion, and backstop portion is movably to be covered in inhaling the material mouth to adjust the aperture to inhaling the material mouth. This venturi moves through backstop portion to control mechanism, can adjust the aperture of this venturi inhale the material mouth to adjust the negative pressure to its throat section, thereby adjust and stable control in a flexible way venturi's negative pressure size, under this venturi was used for the condition of fertilizeing, can adjust in a flexible way venturi's fertile volume of inhaling through the negative pressure.
Description
Technical Field
The application relates to the technical field of fertilization equipment, in particular to a venturi tube.
Background
The Venturi tube is a pipeline which is gradually contracted and then gradually expanded, the Venturi tube is used as a fertilizer applicator and is one of main application directions, and the aim of sucking fertilizer is achieved by generating negative pressure at the throat of the Venturi tube.
At present, the adjustment of the negative pressure degree of the venturi tube is usually realized by changing the ratio of the internal diameters of the throat and the front and rear gradually-changed sections of the throat, and the adjustment cannot be realized by setting, so that the negative pressure degree of the throat cannot be adjusted, the capacity of the venturi tube for generating negative pressure cannot be fully utilized, and limited conditions such as insufficient fertilizer suction amount and the like can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a venturi to solve the technical problem that the adjustment of negative pressure that is inconvenient to exist among the prior art thereby leads to can not make full use of to the ability that produces the negative pressure of venturi to a certain extent.
The application provides a venturi tube, which comprises a liquid inlet section, a throat section, a diffusion section and a control mechanism;
the liquid inlet section, the throat section and the diffusion section are sequentially communicated, and both the liquid inlet section and the diffusion section are in a shape gradually reduced towards the throat section;
the lateral wall of throat portion is formed with inhales the material mouth, control mechanism includes backstop portion, backstop portion movably cover in inhale the material mouth, in order to right inhale the aperture of material mouth and adjust.
In the above technical solution, further, the suction port is disposed at a connection position of the throat section and the diffuser section.
In any of the above technical solutions, further, the control mechanism further includes a control section, a buffer cavity is formed inside the control section, and a first opening and a second opening communicated with the buffer cavity are formed on a side wall of the control section;
the first opening is used for supplying materials to the buffer cavity, the control section is connected with the throat opening section through the second opening and the material suction port, and the second opening is overlapped with the material suction port, so that the buffer cavity is communicated with the throat opening section.
In any of the above technical solutions, further, the throat section is connected to the stopper, and the stopper movably covers the second opening along the length direction of the diffuser;
the length of the stopping part is not less than that of the second opening along the length direction of the diffusion section.
In any of the above technical solutions, further, the control section includes an annular body and an annular extension, the annular body is sleeved on the outer periphery of the throat section at intervals, and the annular extension is connected between the end of the diffuser section and the end of the annular body facing the diffuser section;
the buffer cavity is around the annular of larynx mouth section is seted up in the inside of control section, the length direction's of buffer cavity one end link up annular extension with the junction of diffuser section, so that the second opening encircles the larynx mouth section sets up.
In any of the above technical solutions, further, the control mechanism further includes a connecting portion, the connecting portion is connected between the throat section and the stopping portion, the outer periphery of the connecting portion is in threaded connection with the inner periphery of the throat section, so that the stopping portion can move along with the connecting portion relative to the throat section along the length direction of the diffuser section.
In any one of the above technical solutions, further, the control mechanism further includes an operating portion, the operating portion is sleeved on the connecting portion, an inner circumference of one end of the operating portion is screwed with an outer circumference portion of the connecting portion, which is not connected with the throat section, and the other end of the operating portion extends in a direction away from the diffuser section and forms a circumferential interval with the throat section;
and one end of the operating part, which is not in threaded connection with the connecting part, is provided with a handheld part.
In any of the above technical solutions, further, the venturi tube further includes a sealing member, and the sealing member is disposed at a connection gap between the connection portion and the throat section.
In any of the above technical solutions, further, the sealing member is a sealing sleeve, and the sealing sleeve is sleeved on the periphery of the connecting portion and clamped between the connecting portion and the throat section.
In any of the above technical solutions, further, the venturi tube further includes a feeding section, and the feeding section is communicated with the control section through the first opening.
Compared with the prior art, the beneficial effect of this application is:
the application provides a venturi includes inlet leg, throat section, diffuser segment and control mechanism. The liquid inlet section, the throat section and the diffusion section are communicated in sequence, and both the liquid inlet section and the diffusion section are in a shape gradually reduced towards the throat section so that the throat section forms negative pressure. The lateral wall of larynx mouth section is formed with inhales the material mouth, inhales the material mouth and is used for inhaling the material, and the feed liquor section is used for the feed liquor to liquid can mix and export through the diffuser in larynx mouth section with the material, and wherein, control mechanism includes backstop portion, and backstop portion is movably to be covered in inhaling the material mouth, adjusts in order to inhaling the aperture of material mouth, thereby adjusts the negative pressure degree of larynx mouth section, and the position of backstop portion has been transferred, and the negative pressure degree of larynx mouth section is also transferred, and is stabilizing and transferring the negative pressure.
This venturi moves through backstop portion to control mechanism, can adjust the aperture of this venturi's material mouth of inhaling to adjust the negative pressure of its throat section, thereby adjust and stable control in a flexible way venturi's negative pressure size.
The venturi tube can be used as a fertilizing venturi tube, and the fertilizer suction amount of the venturi tube can be flexibly adjusted through negative pressure under the condition that the venturi tube is used for fertilizing.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a first schematic structural view of a venturi provided in accordance with an embodiment of the present application;
FIG. 2 is a second schematic illustration of a venturi provided in accordance with an embodiment of the present application;
FIG. 3 is a first schematic structural diagram of a control mechanism for a venturi provided in accordance with an embodiment of the present application;
FIG. 4 is a second schematic illustration of a control mechanism for a venturi provided in accordance with an embodiment of the present application;
FIG. 5 is a third structural schematic diagram of a control mechanism for a venturi provided in accordance with embodiments of the present application;
FIG. 6 is a fourth structural schematic diagram of a control mechanism of the venturi provided by the embodiment of the present application.
Reference numerals:
1-a feeding section; 12-a liquid inlet section; 13-throat section; 14-a control section; 140-an annular body; 141-an annular extension; 15-a first diffuser section; 16-a second diffuser section; 2-a control mechanism; 21-a hand-held part; 22-an operating part; 23-a connecting part; 24-a stop.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-6, embodiments of the present application provide a venturi tube comprising an inlet section 12, a throat section 13, a diffuser section, and a control mechanism 2.
Hereinafter, the above components of the venturi tube will be described in detail.
In the alternative of this embodiment, liquid inlet section 12 throat section 13 communicates with the diffuser section in order, and liquid inlet section 12 and diffuser section all are towards throat section 13 convergent shape to utilize the venturi principle, form the negative pressure at throat section 13.
Wherein, the inlet section 12 is used for letting in the diluent, and the diluent is used for diluting the fertilizer, and the diluent is for example water, can be with the diluent follow inlet section 12 suction and carry to the diffuser segment under the negative pressure effect of throat section 13.
The lateral wall of throat section 13 has seted up and has inhaled the material mouth, specifically, inhales the material mouth for the through-hole that sets up along the thickness direction of throat section 13, through inhaling the inside and the outside of material mouth intercommunication throat section 13 to suck fertilizer from the outside of throat section 13 to inside under the negative pressure effect of throat section 13, thereby carry fertilizer and diluent after throat section 13 mixes the diffuser section.
In order to realize the diffusion gradient, the diffuser section comprises a first diffuser section 15 and a second diffuser section 16, the second diffuser section 16 is connected with the end part of the throat section 13, which is far away from the liquid inlet section 12, through the first diffuser section 15, and the rate efficiency of the first diffuser section 15 tapering towards the throat section 13 is smaller than the rate of the second diffuser section 16 tapering towards the rear short.
In the alternative of this embodiment, in order to facilitate forming the cushioning effect to the transport of fertilizer to throat section 13, control mechanism 2 still includes control section 14, and the inside of control section 14 has seted up the cushion chamber, and the lateral wall of control section 14 is formed with first opening and the second opening that is linked together with the cushion chamber.
The first opening is used for supplying materials to the buffer cavity, the control section 14 is connected with the throat section 13 through the second opening and the suction port, so that the buffer cavity is communicated with the throat section 13, namely, fertilizer can enter the buffer cavity through the first opening and is buffered through the buffer cavity, the fertilizer can be more uniform and can enter the inside of the throat section 13 through the second opening and the suction port at a proper speed, and the fertilizer is mixed with diluent in the inside of the throat section 13. Wherein the second opening is opposite to the material sucking port, so that the second opening and the material sucking port are overlapped in position.
In this embodiment, in order to improve the mixing effect between the fertilizer and the diluent, the suction port is disposed at the joint of the throat section 13 and the diffuser section, and since the throat section 13 needs to be connected to the diffuser section through the control section 14, the suction port and the second opening can be disposed to overlap each other.
In this embodiment, the venturi tube further includes a feeding section 1, and the feeding section 1 is connected with the control section 14 through the first opening, so as to supply fertilizer to the buffer cavity of the control section 14 through the feeding section 1.
In this embodiment, the throat section 13 is connected to the blocking portion 24, and the blocking portion 24 covers the second opening movably along the length direction of the diffuser, that is, the opening of the second opening, that is, the suction port, is adjusted by adjusting the position of the blocking portion 24 along the length direction of the diffuser.
Wherein, along the length direction of diffuser, the length of backstop portion 24 is no less than the length of second open-ended, and the length of backstop portion 24 is no less than the length of inhaling the material mouth promptly to ensure to inhale the aperture control range of material mouth and can cover whole open and whole close two states and the multiple state between these two states.
In the present embodiment, in order to improve the fineness of the opening degree adjustment, the control section 14 includes the annular body 140 and the annular extension 141.
The annular body 140 is spaced around the outer periphery of the throat section 13, and the annular extension 141 is connected between the end of the diffuser section and the end of the annular body 140 facing the diffuser section, so that the control section 14 is generally annular in shape disposed around the throat section 13. In addition, the annular body 140 can be supported by the annular extension 141, and the size of the annular body 140 can be specifically set according to actual requirements.
The cushion chamber is the annular that encircles larynx section 13 and sets up in control section 14's inside, the junction of annular extension 141 and diffuser is link up to the length direction's of cushion chamber one end, so that the second opening encircles larynx section 13 and sets up, thereby on the one hand, because cushion chamber and second opening all are the shape that encircles larynx section 13 and set up, can improve the circumference homogeneity that advances fertilizer to larynx section 13, on the other hand, because the length direction of diffuser is also exactly followed to the position of backstop portion 24, the length direction of larynx section 13 is adjustable, adjustable direction is mutually perpendicular with the equipartition direction of feeding, can adjust through the negative pressure, the adjustable range of fertilizer volume is inhaled in the increase.
In this embodiment, in order to adjust the position of the stopping portion 24, the control mechanism 2 further includes a connecting portion 23, the connecting portion 23 is connected between the throat section 13 and the stopping portion 24, so that the connecting portion 23 and the stopping portion 24 follow up, specifically, the outer periphery of the connecting portion 23 is screwed with the inner periphery of the throat section 13, so that by rotating the connecting portion 23 relative to the control section 14, the connecting portion 23 can move along the length direction of the diffuser, so that the stopping portion 24 can move along the length direction of the diffuser relative to the throat section 13 along with the connecting portion 23, the length of the second opening covered along the length direction of the diffuser is adjusted by the stopping portion 24, so as to achieve the purpose of adjusting the opening of the second opening, and also achieve the purpose of adjusting the negative pressure degree of the throat section 13.
In this embodiment, the control mechanism 2 further includes an operation portion 22, the operation portion 22 is connected to the outer periphery of the connection portion 23, the connection portion 23 has an exposed end opposite to the control section 14, and an external thread is disposed at the exposed end opposite to the control section 14, the operation portion 22 is screwed with the external thread of the connection portion 23 opposite to the control section 14, that is, a connection window is disposed in the circumferential direction of the throat section 13 in a discontinuous manner, the inner periphery of one end of the operation portion 22 extends into the inside of the throat section 13 through the connection window, and is screwed with the outer periphery of the end portion of the connection portion 23 not connected with the throat section 13, so that the continuity of the axial structure of the throat section 13 is not affected, the rotation of the operation portion 22 along the circumferential direction of the throat section 13 is not affected, the rotation of the connection portion 23 relative to the control section 14 can be driven by rotating the operation portion 22, and the position of the stopping portion 24 relative to the second opening along the length direction of the diffusion section is achieved, the operator does not need to directly adjust the connecting portion 23, which facilitates the application of force.
It will be appreciated that in order to ensure that the operating portion 22 is able to move within the connecting window, it is necessary to ensure that the connecting window is of a greater size than the operating portion 22 both axially and circumferentially of the throat section 13.
The other end of the operating part 22 extends towards the direction departing from the control section 14 and forms a circumferential interval with the throat section 13, so that the operating part 22 has a sufficient length, the force application area of an operator is increased, the acting force arm is increased, and the adjusting of the connecting part 23 is more labor-saving.
In this embodiment, the end of the operation portion 22 not screwed to the connection portion 23 is provided with the hand-held portion 21, so that the hand-held portion 21 provides a point of application of force, friction of rotating the operation portion 22 is increased, and the labor saving degree is further improved.
Optionally, the handholds 21 are butterfly valve shaped handles, and the number of handholds 21 is at least one, such as one or two.
In an alternative of this embodiment, since the threaded connection between the connection portion 23 and the throat section 13 needs to be screwed frequently, there is a certain risk of leakage, and in order to improve the sealing performance of the connection between the two, the venturi further includes a sealing member, such as a sealing ring or a sealing band wound around the outer periphery of the connection portion 23, which is disposed at the connection gap between the connection portion 23 and the throat section 13.
In this embodiment, the sealing member is a sealing sleeve which is disposed around the connecting portion 23, and the sealing sleeve is interposed between the connecting portion 23 and the throat section 13, that is, the sealing sleeve is disposed over the entire length of the connecting portion 23, and can always maintain a state of sealing the connection between the connecting portion 23 and the throat section 13 after the connecting portion 23 is adjusted.
Optionally, the gland is a rubber rotary gland.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention. Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (10)
1. A venturi tube is characterized by comprising a liquid inlet section, a throat section, a diffusion section and a control mechanism;
the liquid inlet section, the throat section and the diffusion section are sequentially communicated, and the liquid inlet section and the diffusion section are in a shape gradually reduced towards the throat section;
the lateral wall of throat portion is formed with inhales the material mouth, control mechanism includes backstop portion, backstop portion movably cover in inhale the material mouth, in order to right inhale the aperture of material mouth and adjust.
2. The venturi of claim 1, wherein the suction port is disposed at a junction of the throat section and the diffuser section.
3. The venturi tube of claim 2, wherein the control mechanism further comprises a control section, a buffer cavity is formed inside the control section, and a first opening and a second opening communicated with the buffer cavity are formed on a side wall of the control section;
the first opening is used for supplying materials to the buffer cavity, the control section is connected with the throat opening section through the second opening and the material suction port, and the second opening is overlapped with the material suction port, so that the buffer cavity is communicated with the throat opening section.
4. The venturi of claim 3, wherein the throat section is connected to the stop, the stop movably covering the second opening along a length of the diffuser section;
the length of the stopping part is not less than that of the second opening along the length direction of the diffusion section.
5. The venturi of claim 4, wherein the control section includes an annular body spaced outwardly from the outer periphery of the throat section and an annular extension connected between an end of the diffuser section and an end of the annular body facing the diffuser section;
the cushion chamber is the ring-shaped that encircles the larynx mouth section and sets up in the inside of control section, the one end of the length direction of cushion chamber link up annular extension with the junction of diffuser section, so that the second opening encircles the larynx mouth section sets up.
6. The venturi of claim 4, wherein the control mechanism further comprises a connecting portion connected between the throat section and the stop, an outer periphery of the connecting portion threadably engaging an inner periphery of the throat section such that the stop is movable with the connecting portion relative to the throat section along a length of the diffuser section.
7. The venturi of claim 6, wherein the control mechanism further comprises an operating portion externally fitted over the connecting portion, an inner periphery of one end of the operating portion being in threaded engagement with an outer peripheral portion of the connecting portion not connected to the throat section, and another end of the operating portion extending away from the diffuser section and being circumferentially spaced from the throat section;
and one end of the operating part, which is not in threaded connection with the connecting part, is provided with a handheld part.
8. The venturi of claim 7, further comprising a seal disposed at a connection gap of the connection portion and the throat section.
9. The venturi tube of claim 8, wherein the seal is a gland, the gland being disposed around the periphery of the connecting portion and interposed between the connecting portion and the throat section.
10. The venturi of claim 3, further comprising a feed section in communication with the control section through the first opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220773790.7U CN216982562U (en) | 2022-04-01 | 2022-04-01 | Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220773790.7U CN216982562U (en) | 2022-04-01 | 2022-04-01 | Venturi tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216982562U true CN216982562U (en) | 2022-07-19 |
Family
ID=82373964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220773790.7U Active CN216982562U (en) | 2022-04-01 | 2022-04-01 | Venturi tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216982562U (en) |
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2022
- 2022-04-01 CN CN202220773790.7U patent/CN216982562U/en active Active
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