CN106907511B

CN106907511B - Liquid control throttling device

Info

Publication number: CN106907511B
Application number: CN201710304715.XA
Authority: CN
Inventors: 崔蕴; 张北军; 李新友; 郭锐
Original assignee: Tianjin Aerospace Changzheng Rocket Manufacturing Co ltd; China Academy of Launch Vehicle Technology CALT
Current assignee: Tianjin Aerospace Changzheng Rocket Manufacturing Co ltd; China Academy of Launch Vehicle Technology CALT
Priority date: 2017-05-03
Filing date: 2017-05-03
Publication date: 2023-06-20
Anticipated expiration: 2037-05-03
Also published as: CN106907511A

Abstract

The invention provides a liquid control amount throttling device, which comprises: the inner side of the spiral cover is provided with a circular step-shaped groove, the step-shaped groove comprises a first groove and a second groove, and ratchet teeth are arranged on the inner side wall of the second groove along the circumferential direction; the unidirectional rotating body comprises a base and a boss, a plurality of accommodating grooves are formed in the outer circumference of the boss, pawls are arranged in the accommodating grooves and are rotationally connected to the base, one side face of each pawl is connected with the inner wall of each accommodating groove, an elastic piece is connected between the pawls, the boss is embedded into the second groove, the rotary cover is rotated clockwise, and the pawls are clamped on ratchet teeth on the inner side of the rotary cover. The throttling device realizes quantitative inflow and outflow of liquid through a mechanical structure, is closed in sampling, safe and sanitary, strong in reliability, simple in structure and low in cost.

Description

Liquid control throttling device

Technical Field

The invention belongs to the technical field of fluid quantitative throttling, and particularly relates to a liquid control throttling device.

Background

The throttle device is a device for controlling the flow rate of fluid by changing the throttle section or the throttle length, and in industrial production and processing, quantitative supply and sampling of various liquids are required, which requires a liquid control throttle device. The earliest commercial use of the restriction was the measurement of natural gas flow using orifice plates in the united states in 1900, and various restrictions were subsequently developed during 100 years, so that the development and application of the restriction has advanced one step.

The liquid control throttle device widely used today is generally divided into an electronic type and a mechanical type, the electronic sampling device is mainly controlled by electronic equipment, and the electronic sampling device is mainly controlled by an external functional device, so that the electronic sampling device has the advantages of high automation degree, accurate measurement, complex structure, strict use condition, incapability of being used in open air environment and under the condition of lacking energy, and incapability of ensuring that the sampling is finished under the condition of being closed in some small and medium enterprises, such as milk factories, and easiness in pollution and waste of stock solution.

Disclosure of Invention

Therefore, the invention aims to provide a liquid control throttling device to well solve the defects in the prior art.

In order to achieve the above purpose, the technical scheme of the invention is realized as follows:

a liquid control amount throttling device, comprising:

the inner side of the spiral cover is provided with a circular step-shaped groove, the step-shaped groove comprises a first groove and a second groove, and ratchet teeth are arranged on the inner side wall of the second groove along the circumferential direction;

the unidirectional rotating body comprises a base and a boss, a plurality of accommodating grooves are formed in the outer circumference of the boss, pawls are arranged in the accommodating grooves and are rotationally connected to the base, one side face of each pawl is connected with the inner wall of each accommodating groove, an elastic piece is connected between the pawls, the boss is embedded into the second groove, the rotary cover is rotated clockwise, and each pawl is clamped on ratchet teeth on the inner side of the rotary cover;

the inner sleeve is fixedly connected with the lower surface of the base of the unidirectional rotating body, a fan impeller is arranged on the inner side of the inner sleeve, the fan impeller can rotate relative to the inner sleeve, a transmission mechanism is arranged at one end of the fan impeller, the transmission mechanism is connected with the inner sleeve, the fan impeller rotates anticlockwise, the inner sleeve rotates clockwise, an inner sleeve inlet and an inner sleeve outlet are respectively formed in the inner sleeve, and the axis of the inner sleeve inlet is not intersected with the axis of the inner sleeve;

the outer sleeve is sleeved outside the inner sleeve, the inner sleeve can rotate relative to the outer sleeve, the outer sleeve is provided with an outer sleeve inlet and an outer sleeve outlet respectively, the height of the outer sleeve inlet is the same as that of the inner sleeve inlet, and the height of the outer sleeve outlet is the same as that of the inner sleeve outlet.

Further, an upper sealing plate is arranged on the upper surface of the fan impeller, and a lower sealing plate is arranged on the lower surface of the fan impeller.

Further, a rotating shaft is arranged at the central shaft of the inner sleeve, one end of the rotating shaft is connected with the inner sleeve through a first bearing, the other end of the rotating shaft is connected with the outer sleeve through a second bearing, and the fan blade wheel is sleeved on the rotating shaft and fixedly connected with the rotating shaft.

Further, the transmission mechanism comprises a sun gear and a planet gear, the sun gear is fixedly connected to one end part of the rotating shaft, the planet gear is meshed with the sun gear, an inner gear is arranged on the inner wall of the upper portion of the inner sleeve, and the inner gear is meshed with the planet gear.

Further, the outer sleeve outlet is positioned at the upper part of the outer sleeve, and the outer sleeve inlet is positioned at the lower part of the outer sleeve.

Further, the inner sleeve inlet is positioned at the upper part of the inner sleeve, and the inner sleeve outlet is positioned at the lower part of the inner sleeve.

Further, the pawl is connected to the base through a pin shaft.

Further, the elastic piece is a spring.

Compared with the prior art, the liquid control amount throttling device has the following advantages:

(1) The rotary cover is rotated clockwise for a certain angle, the inner sleeve is aligned with the inlet and the outlet of the outer sleeve or is incompletely aligned with the inlet and the outlet, so that liquid flows in from the inlet and flows out from the outlet, the rotary angle of the rotary cover is in direct proportion to the liquid outflow, and the liquid control is accurate;

(2) The axis of the liquid inlet is not intersected with the axis of the sleeve, when the inlet flows in liquid with pressure, the liquid pushes the fan blade to rotate anticlockwise, and when the liquid rotates to the condition that the inlet and the outlet of the inner sleeve and the outer sleeve are not aligned at all, the liquid stops flowing, so that the quantitative supply of the liquid can be realized stably;

(3) The spiral cover is matched with the intermittent mechanism, so that the spiral cover can automatically rotate, and the automatic circulation of quantitative liquid is realized;

(4) The device realizes quantitative inflow and outflow of liquid through mechanical structure, and the sample is sealed, and safety and sanitation, reliability are strong, simple structure, low cost.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute an undue limitation on the invention. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of a controlled-volume throttling mechanism according to an embodiment of the invention;

FIG. 2 is a cross-sectional view of the internal structure of the controlled-volume throttling mechanism according to an embodiment of the invention;

FIG. 3 is a cross-sectional view of a screw cap according to an inventive embodiment of the present invention;

FIG. 4 is a schematic view of a unidirectional rotating body according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an outer sleeve according to an inventive embodiment of the present invention;

figure 6 is a cross-sectional view of an inner sleeve according to an inventive embodiment of the present invention.

Reference numerals illustrate:

1-screwing a cover; 101-ratchet teeth; 102-a first groove; 103-a second groove; 2-pawl; 3-a unidirectional rotating body; 301-a spring; 302-pin shaft; 303-boss; 304-a base; 305-a receiving groove; 4-sun gear; 5-an inner sleeve; 501-an inner sleeve inlet; 502-an inner sleeve outlet; 6-a first bearing; 7-a fan impeller; 8-an outer sleeve; 9-an outer sleeve outlet; 10-a second bearing; 11-a lower sealing plate; 12-an outer sleeve inlet; 13-an upper sealing plate; 14-planetary wheels; 15-an internal gear; 16-planetary axles; 17-rotation axis.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.

The invention will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1-6, a liquid control amount throttling device includes:

the rotary cover 1 is provided with a circular step-shaped groove on the inner side of the rotary cover 1, the step-shaped groove comprises a first groove 102 and a second groove 103, and ratchet teeth 101 are arranged on the inner side wall of the second groove 103 along the circumferential direction;

the unidirectional rotating body 3, the unidirectional rotating body 3 includes a base 304 and a boss 303, a plurality of holding grooves 305 are formed in the outer circumference of the boss 303, a pawl 2 is arranged in the holding grooves 305, the pawl 2 is rotationally connected to the base 304, one side surface of the pawl 2 is connected with the inner wall of the holding grooves 305, a spring is connected between the two, the boss 303 is embedded into the second groove 103, the rotary cover 1 is rotated clockwise, and the pawl 2 is clamped on the ratchet teeth 101 at the inner side of the rotary cover 1;

the inner sleeve 5, the up end of the said inner sleeve 5 is fixedly connected with lower surface of base 304 of unidirectional rotating body 3, the inboard of the inner sleeve 5 installs the impeller 7 of the fan, and the impeller 7 can rotate relatively to the inner sleeve 5, one end of the impeller 7 installs the drive mechanism, the said drive mechanism is connected with inner sleeve 5, the impeller 7 rotates anticlockwise, the inner sleeve 5 rotates clockwise, there are inner sleeve inlet 501 and inner sleeve outlet 502 separately on the said inner sleeve 5, and the axis of the inner sleeve inlet 501 does not intersect with axis of the inner sleeve 5;

the outer sleeve 8 is sleeved outside the inner sleeve 5, the inner sleeve 5 can rotate relative to the outer sleeve 8, the outer sleeve 8 is provided with an outer sleeve inlet 12 and an outer sleeve outlet 9 respectively, the height of the outer sleeve inlet 12 is the same as that of the inner sleeve inlet 501, and the height of the outer sleeve outlet 9 is the same as that of the inner sleeve outlet 502.

As shown in fig. 2, an upper sealing plate 13 is mounted on the upper surface of the impeller 7, and a lower sealing plate 11 is mounted on the lower surface of the impeller 7.

As shown in fig. 2, a rotating shaft 17 is installed at the central shaft of the inner sleeve 5, one end of the rotating shaft 17 is connected with the inner sleeve 5 through a first bearing 6, the other end of the rotating shaft 17 is connected with the outer sleeve 8 through a second bearing 10, and the fan impeller 7 is sleeved on the rotating shaft 17 and fixedly connected with the rotating shaft 17.

As shown in fig. 2, the transmission mechanism comprises a sun gear 4 and a planetary gear 14, the sun gear 4 is fixedly connected to one end of a rotating shaft 17, the planetary gear 14 is meshed with the sun gear 4, an inner gear 15 is arranged on the inner wall of the upper portion of the inner sleeve 5, and the inner gear 15 is meshed with the planetary gear 14.

As shown in fig. 5, the outer sleeve outlet 9 is located at the upper part of the outer sleeve 8, and the outer sleeve inlet 12 is located at the lower part of the outer sleeve 8.

As shown in fig. 6, the inner sleeve inlet 501 is located at the upper part of the inner sleeve 5 and the inner sleeve outlet 502 is located at the lower part of the inner sleeve 5.

As shown in fig. 4, the pawl 2 is connected to the base 304 by a pin 302.

Specific implementation of this embodiment: rotating the spiral cover 1 clockwise, clamping the pawl 2 with ratchet teeth 101 on the inner side of the spiral cover 1, driving the unidirectional rotating body 3 to rotate clockwise, and synchronously rotating the inner sleeve 5 to enable the inner sleeve inlet 501 to be completely aligned with the outer sleeve inlet 12 or incompletely aligned with the outer sleeve outlet 502, wherein the outer sleeve outlet 9 and the inner sleeve outlet 502 synchronously achieve complete alignment or incompletely aligned with each other, at the moment, liquid with certain pressure flows into the inner sleeve 5 through the outer sleeve inlet 12 and the inner sleeve inlet 501 in sequence, and the liquid pushes the fan impeller 7 to rotate anticlockwise; the fan impeller 7 drives the rotating shaft 17 and the sun gear 4 to synchronously rotate anticlockwise; the inner sleeve 5 is rotated clockwise by the gear pair, the unidirectional rotating body 3 is also rotated clockwise, the pawl 2 cannot clamp the rotary cap 1, the rotary cap 1 does not rotate until the inner sleeve inlet 501 is not aligned with the outer sleeve inlet 12 at all, and the inner sleeve outlet 502 is not aligned with the outer sleeve outlet 9 at all, so that the liquid stops flowing in and out.

The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid control amount throttling device, characterized by comprising:

the novel rotary type ratchet comprises a rotary cover (1), wherein a circular step-shaped groove is formed in the inner side of the rotary cover (1), the step-shaped groove comprises a first groove (102) and a second groove (103), and ratchet teeth (101) are formed in the inner side wall of the second groove (103) along the circumferential direction;

the unidirectional rotating body (3), the unidirectional rotating body (3) comprises a base (304) and a boss (303), a plurality of accommodating grooves (305) are formed in the outer circumference of the boss (303), pawls (2) are arranged in the accommodating grooves (305), the pawls (2) are rotationally connected to the base (304), one side surface of each pawl (2) is connected with the inner wall of the corresponding accommodating groove (305), an elastic piece (301) is connected between the pawls, the boss (303) is embedded into the second groove (103), the rotary cover (1) is rotated clockwise, and the pawls (2) are clamped on ratchet teeth (101) on the inner side of the rotary cover (1);

the inner sleeve (5), the up end of inner sleeve (5) and the lower surface rigid coupling of base (304) of unidirectional rotating body (3), fan impeller (7) are installed to inner sleeve (5) inboard, and fan impeller (7) can rotate relative inner sleeve (5), and drive mechanism is installed to one end of fan impeller (7), drive mechanism is connected with inner sleeve (5), and fan impeller (7) anticlockwise rotation, and inner sleeve (5) clockwise rotation, still open inner sleeve entry (501) and inner sleeve export (502) on inner sleeve (5) respectively, and the axis of inner sleeve entry (501) is disjoint with the axis of inner sleeve (5);

the outer sleeve (8), outer sleeve (8) cover is in sleeve (5) outside, and inner sleeve (5) can rotate relative outer sleeve (8), and outer sleeve entry (12) and outer sleeve export (9) have been opened respectively on outer sleeve (8), and the height of outer sleeve entry (12) is the same with the height of inner sleeve entry (501), and the height of outer sleeve export (9) is the same with the height of inner sleeve export (502).

2. A liquid control amount throttling arrangement as set forth in claim 1, wherein: an upper sealing plate (13) is arranged on the upper surface of the fan blade wheel (7), and a lower sealing plate (11) is arranged on the lower surface of the fan blade wheel (7).

3. A liquid control amount throttling arrangement as set forth in claim 1, wherein: a rotating shaft (17) is arranged at the central shaft of the inner sleeve (5), one end of the rotating shaft (17) is connected with the inner sleeve (5) through a first bearing (6), the other end of the rotating shaft (17) is connected with the outer sleeve (8) through a second bearing (10), and the fan blade wheel (7) is sleeved on the rotating shaft (17) and fixedly connected with the rotating shaft (17).

4. A liquid control amount throttling arrangement according to claim 3, characterized in that: the transmission mechanism comprises a sun gear (4) and a planet gear (14), wherein the sun gear (4) is fixedly connected to one end part of a rotating shaft (17), the planet gear (14) is meshed with the sun gear (4), an inner gear (15) is arranged on the inner wall of the upper portion of the inner sleeve (5), and the inner gear (15) is meshed with the planet gear (14).

5. A liquid control amount throttling arrangement as set forth in claim 1, wherein: the outer sleeve outlet (9) is arranged at the upper part of the outer sleeve (8), and the outer sleeve inlet (12) is arranged at the lower part of the outer sleeve (8).

6. A liquid control amount throttling arrangement as set forth in claim 1, wherein: the inner sleeve inlet (501) is positioned at the upper part of the inner sleeve (5), and the inner sleeve outlet (502) is positioned at the lower part of the inner sleeve (5).

7. A liquid control amount throttling arrangement as set forth in claim 1, wherein: the pawl (2) is connected to the base (304) through a pin shaft (302).

8. A liquid control amount throttling arrangement as set forth in claim 1, wherein: the elastic piece (301) is a spring.