Valve timing opening and closing device adopting mechanical transmission structure and use method thereof
阅读说明:本技术 一种采用机械传动结构的阀门定时开闭器及其使用方法 (Valve timing opening and closing device adopting mechanical transmission structure and use method thereof ) 是由 林瑞汉 于 2020-06-22 设计创作,主要内容包括:本发明公开了一种采用机械传动结构的阀门定时开闭器及其使用方法,涉及阀门开闭技术领域,包括有用于控制阀芯上下运动的控制机构,以及定时驱动控制机构的定时驱动器,控制机构包括贯穿于支架的限位杆一、限位杆二和限位杆三,限位杆一的一端与阀芯固定连接,限位杆一的另一端固定连接有抵压块一,限位杆二的端部固定连接有抵压块二,限位杆三的端部固定连接有抵压块三,支架上设置有供抵压块一复位的复位部件一,支架上还设置有供抵压块二复位的复位部件二,复位部件一作为阀芯上移时的驱动源,及作为阀门关闭时的驱动源。本发明,通过上述等结构之间的配合,解决了背景技术中所提出的技术问题。(The invention discloses a valve timing shutter adopting a mechanical transmission structure and a use method thereof, and relates to the technical field of valve opening and closing, comprising a control mechanism for controlling a valve core to move up and down and a timing driver for driving the control mechanism in a timing manner, wherein the control mechanism comprises a first limiting rod, a second limiting rod and a third limiting rod which penetrate through a bracket, one end of the first limiting rod is fixedly connected with the valve core, the other end of the first limiting rod is fixedly connected with a first abutting block, the end part of the second limiting rod is fixedly connected with a second abutting block, the end part of the third limiting rod is fixedly connected with a third abutting block, the bracket is provided with a first reset part for resetting the first abutting block, the bracket is also provided with a second reset part for resetting the second abutting block, and the first reset part is used as a drive source when the valve core moves up and as a drive source when. The invention solves the technical problems in the background technology through the matching of the structures.)
1. The utility model provides an adopt valve timing switch of mechanical transmission structure, is including the control mechanism who is used for controlling case (24) up-and-down motion to and the timing driver of timing drive control mechanism, its characterized in that: the control mechanism comprises a first limiting rod (2), a second limiting rod (3) and a third limiting rod (4) which penetrate through a support (1), one end of the first limiting rod (2) is fixedly connected with the valve core (24), the other end of the first limiting rod (2) is fixedly connected with a first abutting block (5), the end of the second limiting rod (3) is fixedly connected with a second abutting block (6), the end of the third limiting rod (4) is fixedly connected with a third abutting block (7), a first reset part for resetting the first abutting block (5) is arranged on the support (1), a second reset part for resetting the second abutting block (6) is further arranged on the support (1), and the first reset part serves as a driving source when the valve core (24) moves upwards and serves as a driving source when the valve is closed.
2. The valve timing shutter using mechanical transmission structure as claimed in claim 1, wherein: the timing driver comprises a clockwork spring timer (8) fixedly connected to the support (1), an output rotating shaft of the clockwork spring timer (8) is connected with the third limiting rod (4) through a switching component, the third pressing block (7) presses the second pressing block (6) to enable the second pressing block (6) to press the first pressing block (5), the third pressing block (7) locks the position of the second pressing block (6), and the second pressing block (6) locks the position of the first pressing block (5), so that the output rotating shaft of the clockwork spring timer (8) does not directly receive restoring force of the first resetting component and the second resetting component; the outer wall of the first pressing block (5) comprises a first inclined end face (9) and a first plane (10), the outer wall of the second pressing block (6) comprises a second inclined end face (11), a third inclined end face (12), a second plane (13) and a third plane (14), and the third pressing block (7) comprises a fourth inclined end face (15) and a fourth plane (16).
3. The valve timing shutter using a mechanical transmission structure as claimed in claim 1 or 2, wherein: the switching part is including fixed connection in epaxial gear (17) of clockwork spring timer (8) output and eccentric wheel (25), gear (17) meshing has rack plate (18), the siding of rack plate (18) runs through and is provided with linking arm (19), the outer wall of linking arm (19) with the upper end fixed connection of gag lever post three (4).
4. The valve timing shutter using mechanical transmission structure as claimed in claim 3, wherein: the upper surface of the second pressing block (6) is fixedly connected with two pressing plates (26), and the lower end of the rack plate (18) extends into the space between the two pressing plates (26).
5. The valve timing shutter using mechanical transmission structure as claimed in claim 1, wherein: the first reset component comprises a first spring (20), and two end parts of the first spring (20) are fixedly connected with the lower surface of the first pressing block (5) and the frame wall of the bracket (1) respectively.
6. The valve timing shutter using mechanical transmission structure as claimed in claim 1, wherein: the second reset component comprises a second spring (21), and two end parts of the second spring (21) are respectively fixedly connected with the side surface of the second pressing block (6) and the frame wall of the bracket (1).
7. The valve timing shutter using mechanical transmission structure as claimed in claim 1, wherein: the first pressing block (5) is fixedly provided with a first ball (22) on the block wall, and the circular arc surface of the first ball (22) is exposed out of the first plane (10).
8. The valve timing shutter using mechanical transmission structure as claimed in claim 1, wherein: a second ball (23) is fixedly mounted on the block wall of the second pressing block (6), and the circular arc surface of the second ball (23) is exposed out of the third plane (14).
9. The use method of the valve timing switch adopting the mechanical transmission structure as claimed in claim 1, is characterized in that:
when the valve is used, when the first limiting rod is fixedly connected with the valve core, the position of the first limiting rod represents the position when the valve is closed, and then the adapter part is pressed downwards and passes through the third limiting rod, so that the third pressing block can move downwards;
the pressing block III moves downwards and passes through the inclined end face IV, the inclined end face III, the inclined end face II and the inclined end face I, so that the pressing block II can move towards the direction far away from the pressing block III, the position of the limiting rod I is at the moment, the process that the pressing block II moves left and right is not directly influenced by the upward restoring force of the restoring component I, finally the switching component is loosened, the output rotating shaft of the clockwork spring timer can be rotated by utilizing the energy provided when a clockwork spring in the clockwork spring timer is pressed and restored, the pressing block III can be driven to move upwards by the rotation of the output rotating shaft of the clockwork spring timer and the switching component, when the plane III is staggered on the plane IV, the pressing block II can return to the initial position leftwards by utilizing the restoring force of the restoring component II, and therefore, after the pressing block II returns to the initial position, the pressing block I can move upwards and passes through the limiting rod, at this point the valve is closed.
Technical Field
The invention relates to the technical field of valve opening and closing, in particular to a valve timing opening and closing device adopting a mechanical transmission structure and a using method thereof.
Background
The valve is usually used for switching on and off the pipeline annex, and the make-and-break of the general valve of market mostly needs manual control rivers, if the valve does not close tightly can cause the water waste, and the touch-control valve goes out water through the response, installs in public occasion, because the frequency of use is high, causes the response dumb easily, and then produces the phenomenon of leaking.
For example, chinese patent CN201710128344.4 discloses a transmission mechanism for a mechanical timing valve, which is disclosed in the following: 20170623, the invention is created by setting up between the main shaft of the timer and the valve core used for driving the valve, the mechanism includes a mounting plate, gear and shifting block fixedly mounted with the valve core coaxially fixedly mounted with the main shaft, there is the first extension spring on the mounting plate, the shifting block protrudes the surface of the mounting plate, connect and have the rack on the first extension spring, there are engaging teeth on a part of the rack, the shifting block has the first position to control the valve to open and the second position to control the valve to close, the gear rotates and drives the rack to move to the direction that the first extension spring is stretched, the spacing groove drives the shifting block to move to the first position, after timing, the first extension spring drives the rack to move to the direction that the first extension spring resets, the spacing groove drives the shifting block to move to the second position, the valve of the design is under the open state, is not influenced by the timer, the drive structure is stable, the delay error is small, and the valve timing device is suitable for popularization and application in mechanical timing valves.
However, in the above solution, the movement of the dial is controlled by the gear and the rack partially having meshing teeth, i.e. the rack is driven by the rotation of the gear to move the dial, i.e. the spool moves, and then if the flow speed of the medium (such as liquid or gas) flowing inside the valve is high, the resistance encountered by the spool when the valve is closed is relatively high, so that in combination with the above solution, the travel accuracy is controlled by the escapement governor by using the spring as a mechanical timer (the spring timer is equivalent to one of the mechanical timers, and the actuator is operated by the gear transmission and the cam according to the preset time interval of the time control mechanism, which can be referred to in the literature http:// www.hqps.com/tech/201408/210828. html. the gear rotates by using the motive output shaft of the spring, and the principle of the spring timer is usually used as energy source by recovering the energy released by the deformation of the spring (spring) And because gear rotation need directly drive the case and remove among the above-mentioned scheme, then the resistance that spring timer output pivot gyration in-process meets just is great relatively to there is the phenomenon that the energy that the band spring (clockwork spring) provided can't drive gear revolve, and then leads to whole timing effect to become invalid.
Disclosure of Invention
The invention aims to provide a valve timing switch adopting a mechanical transmission structure and a using method thereof, which have the advantages that on one hand, the first spring is used as a lifting valve core driving source to reduce the resistance met by an output rotating shaft of a clockwork spring timer, and on the other hand, the elastic restoring force of the first spring and the second spring is not directly acted on the output rotating shaft of the clockwork spring timer, so that the clockwork spring timer is not directly influenced by the elastic restoring force provided by any spring during timing restoration, and the technical problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: a valve timing opening and closing device adopting a mechanical transmission structure comprises a control mechanism and a timing driver, wherein the control mechanism is used for controlling a valve core to move up and down, the timing driver is used for driving the control mechanism to be driven at a timing mode, the control mechanism comprises a first limiting rod, a second limiting rod and a third limiting rod, the first limiting rod penetrates through a support, one end of the first limiting rod is fixedly connected with the valve core, the other end of the first limiting rod is fixedly connected with a first abutting block, the end part of the second limiting rod is fixedly connected with a second abutting block, the end part of the third limiting rod is fixedly connected with a third abutting block, a first reset part for resetting the first abutting block is arranged on the support, a second reset part for resetting the second abutting block is further arranged on the support, and the first reset part serves as a driving source when the valve core moves up and serves as a.
The timing driver comprises a clockwork spring timer fixedly connected to the support, an output rotating shaft of the clockwork spring timer is connected with the limiting rod in a three-phase mode through a switching component, the pressing block II is pressed through the pressing block III so that the pressing block II presses the pressing block I, the pressing block III locks the position of the pressing block II, the pressing block II locks the position of the pressing block I, and therefore the output rotating shaft of the clockwork spring timer cannot directly receive restoring forces of the resetting component I and the resetting component II.
Preferably, the outer wall of the first pressing block comprises a first inclined end face and a first plane, the outer wall of the second pressing block comprises a second inclined end face, a third inclined end face, a second plane and a third plane, and the third pressing block comprises a fourth inclined end face and a fourth plane.
Preferably, the switching part includes fixed connection and is in epaxial gear of clockwork spring timer output and eccentric wheel, gear engagement has the rack board, the siding wall of rack board runs through and is provided with the linking arm, the outer wall of linking arm with the upper end fixed connection of gag lever post three.
Preferably, the upper surface of the second pressing block is fixedly connected with two pressing plates, and the lower end of the rack plate extends into the space between the two pressing plates.
Preferably, the first restoring component comprises a first spring, and two end parts of the first spring are fixedly connected with the lower surface of the first pressing block and the frame wall of the bracket respectively.
Preferably, the second reset component comprises a second spring, and two end parts of the second spring are respectively and fixedly connected with the side surface of the second pressing block and the frame wall of the bracket.
Preferably, a first ball is fixedly mounted on the block wall of the first pressing block, and the circular arc surface of the first ball is exposed out of the first plane.
Preferably, a second ball is fixedly mounted on the block wall of the second pressing block, and the circular arc surface of the second ball is exposed out of the third plane.
Compared with the prior art, the invention has the following beneficial effects:
firstly, after the connecting arm is pressed downwards and the state shown in figure 3 is achieved, the plane one is located below the plane three, the plane three is located on the side of the plane four, then the elastic force of the spring one serving as the lifting valve core driving source does not directly act on the output rotating shaft of the clockwork spring timer, and the spring one serves as the lifting valve core driving source, so that the resistance met by the output rotating shaft of the clockwork spring timer is reduced.
The output rotating shaft of the clockwork timer is not directly influenced by the elastic restoring force provided by any spring when rotating.
When the second pressing block moves from the state shown in the figure 2 to the state shown in the figure 3, the left pressing plate is driven to press the rack plate along with the process that the second pressing block moves rightwards, so that the rack plate is separated from the meshing relation with the gear, and the resistance of the clockwork timer when the output rotating shaft rotates is reduced.
In order to simplify the using steps, the rack plate driving the output rotating shaft of the clockwork spring timer to rotate is connected with the connecting arm, so that the clockwork spring timer can be started and the valve can be opened while the connecting arm is pressed downwards.
Drawings
FIG. 1 is a first state diagram of the structure of the present invention and is taken as a front view;
FIG. 2 is a second state diagram of the structure of the present invention;
fig. 3 is a third state diagram of the structure of the present invention.
In the figure: 1-bracket, 2-first limiting rod, 3-second limiting rod, 4-third limiting rod, 5-first pressing block, 6-second pressing block, 7-third pressing block, 8-clockwork spring timer, 9-first inclined end face, 10-first plane, 11-second inclined end face, 12-third inclined end face, 13-second plane, 14-third plane, 15-fourth inclined end face, 16-fourth plane, 17-gear, 18-rack plate, 19-connecting arm, 20-first spring, 21-second spring, 22-first ball, 23-second ball, 24-valve core, 25-eccentric wheel and 26-pressing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Referring to fig. 1 to 3, the present invention provides a technical solution:
a valve timing switch adopting a mechanical transmission structure comprises a control mechanism for controlling the up-and-down movement of a
In order to simplify the using steps, the adapter part comprises a
Further, in order to reduce the resistance of the
Furthermore, the first resetting component comprises a
Furthermore, the second reset component comprises a
Furthermore, a
Furthermore, a
The application also provides a using method of the valve timing shutter adopting the mechanical transmission structure, when the valve timing shutter adopting the mechanical transmission structure is used, as shown in the state of figure 1, the limiting rod I2 is fixedly connected with the valve core at the moment, meanwhile, the position of the limiting rod I2 represents the position when the valve is closed, then the connecting
in order to simplify the using steps, the
finally, the connecting
in summary, after the connecting
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:防烫吸管重力球阀及水杯、水壶