阅读说明：本技术 一种应急处理阀门 (Emergency treatment valve ) 是由 刘慧敏 胡红云 姚洪 付彪 王艺程 于 2019-12-17 设计创作，主要内容包括：本发明涉及阀门技术领域,尤其涉及一种应急处理阀门。该锅炉系统包括阀门、变速机构和曲柄摇杆机构,变速机构与所述阀门连接,曲柄摇杆机构包括依次连接的脚踏板、连杆和曲轴,所述曲轴与所述变速机构连接。本发明提供的应急处理阀门通过采用曲柄摇杆机构,工作人员可以利用脚踏的方式对曲柄摇杆机构进行驱动,相比手动关闭阀门的方式,脚踏驱动的方式更快速,从而缩短了阀门闭合的时间；而曲柄摇杆机构和阀门之间通过变速机构连接,如此通过增加转速的方式降低输入的动力,可以实现省力的效果。(The invention relates to the technical field of valves, in particular to an emergency treatment valve. The boiler system comprises a valve, a speed change mechanism and a crank and rocker mechanism, wherein the speed change mechanism is connected with the valve, the crank and rocker mechanism comprises a pedal, a connecting rod and a crankshaft which are sequentially connected, and the crankshaft is connected with the speed change mechanism. According to the emergency treatment valve, the crank rocker mechanism is adopted, so that a worker can drive the crank rocker mechanism in a pedal mode, and compared with a mode of manually closing the valve, the pedal driving mode is quicker, and the closing time of the valve is shortened; and the crank rocker mechanism is connected with the valve through the speed change mechanism, so that the input power is reduced in a mode of increasing the rotating speed, and the labor-saving effect can be realized.)

1. An emergency treatment valve, comprising:

a valve (1);

a speed change mechanism (2) connected to the valve (1);

the crank rocker mechanism (3) comprises a pedal (31), a connecting rod (32) and a crankshaft (33) which are sequentially connected, and the crankshaft (33) is connected with the speed change mechanism (2).

2. Emergency treatment valve according to claim 1, characterised in that the speed change mechanism (2) is a planetary gear mechanism.

3. Emergency treatment valve according to claim 2, wherein the planetary gear mechanism comprises a planet wheel (21), a sun wheel (22) and a ring gear (23), the planet wheel (21) being connected to the crankshaft (33), the planet wheel (21) rotating between the sun wheel (22) and the ring gear (23), the ring gear (23) being connected to the valve (1).

4. Emergency treatment valve according to claim 2, wherein the planetary gear mechanism comprises a planet wheel (21), a sun wheel (22) and a ring gear (23), the planet wheel (21) being connected to the crankshaft (33), the planet wheel (21) rotating between the sun wheel (22) and the ring gear (23);

the sun gear (22) is connected with the valve (1), and the number of teeth of the planet gear (21) is smaller than that of the sun gear (22).

5. Emergency treatment valve according to claim 1, characterized in that said gear change mechanism (2) comprises:

a first gear (25) connected to the crankshaft (33);

a second gear (26) connected to the first gear (25) and the valve (1), respectively;

the number of teeth of the first gear (25) is smaller than that of the second gear (26).

6. Emergency treatment valve according to claim 5, characterised in that the first gearwheel (25) is arranged outside the second gearwheel (26) in an external meshing connection; or

The first gear (25) is provided inside the second gear (26), and the two gears are in mesh engagement with each other.

7. Emergency treatment valve according to any of claims 1-6, characterized in that the valve (1) comprises a gear screw (10) arranged between the gear change mechanism (2) and the valve (1), the gear screw (10) comprising:

a third gear (101) connected to the transmission mechanism (2);

and one end of the screw rod (102) is connected with the third gear (101), and the other end of the screw rod is connected with the valve (1).

8. Emergency treatment valve according to claim 7, characterized in that the valve (1) further comprises:

a valve body (11);

the valve core (12) is rotatably arranged in the valve body (11);

and one end of the valve rod (13) is connected with the valve core (12), and the other end of the valve rod is connected with the screw rod (102).

9. The emergency treatment valve according to claim 8, wherein the valve (1) further comprises a limiting block (14), the valve rod (13) is provided with a limiting portion (131), and the limiting block (14) is sleeved outside the limiting portion (131).

10. The emergency treatment valve according to claim 8, wherein the valve (1) further comprises a housing (15) having an opening, the housing (15) having a housing cavity (151) formed therein;

the other end of the valve rod (13) is connected with the screw rod (102) through a fourth gear (16), and the fourth gear (16) is accommodated in the accommodating cavity (151).

Technical Field

The invention relates to the technical field of valves, in particular to an emergency treatment valve.

Background

In a modern large wharf, a large number of large oil tanks are built for storing crude oil, and the method has great value and significance. Typically, electrically operated valves are used between tanks to control the transfer of crude oil in the pipeline. Under normal circumstances, the electrically operated valve is driven by an electric actuator to control the closing of the valve.

However, in case of emergency, i.e. when the electric valve cannot be normally powered to operate, the electric valve can only be switched to manual operation to close the electric valve. However, because the oil tank is huge in volume, the pressure applied to the valve is too large, and the effect of saving labor is achieved by increasing the number of revolutions. And generally, tens of thousands (e.g. about seventy thousands) of revolutions are designed, so that a worker needs to manually operate for a long time (e.g. two hours), and the long-time closing of the valve can seriously affect the safety of field personnel and even nearby cities.

Therefore, the drawbacks of the current manual valve closing structure are clearly revealed, which not only takes time, but also has great potential safety hazard, so the problem needs to be solved urgently.

Disclosure of Invention

The embodiment of the invention provides an emergency treatment valve, which is used for shortening the closing time of the valve and achieving the effect of saving labor under the condition that normal power supply cannot be realized.

The invention provides an emergency treatment valve, comprising:

a valve;

the speed change mechanism is connected with the valve;

the crank rocker mechanism comprises a pedal, a connecting rod and a crankshaft which are sequentially connected, and the crankshaft is connected with the speed change mechanism.

Optionally, the speed change mechanism is a planetary gear mechanism.

Optionally, the planetary gear mechanism comprises a planetary gear, a sun gear and a ring gear, the planetary gear is connected with the crankshaft, the planetary gear rotates between the sun gear and the ring gear, and the ring gear is connected with the valve.

Optionally, the planetary gear mechanism comprises a planet wheel, a sun wheel and a ring gear, the planet wheel is connected with the crankshaft, and the planet wheel rotates between the sun wheel and the ring gear;

the sun gear is connected with the valve, and the number of teeth of the planet gear is smaller than that of the sun gear.

Optionally, the shifting mechanism comprises:

a first gear connected with the crankshaft;

the second gear is respectively connected with the first gear and the valve;

the number of teeth of the first gear is smaller than that of the second gear.

Optionally, the first gear is arranged outside the second gear, and the first gear and the second gear are in external meshing connection; or

The first gear is arranged in the second gear, and the first gear and the second gear are in inner meshing connection.

Optionally, the valve includes a gear screw disposed between the speed change mechanism and the valve, the gear screw including:

a third gear connected to the speed change mechanism;

and one end of the screw rod is connected with the third gear, and the other end of the screw rod is connected with the valve.

Optionally, the valve further comprises:

a valve body;

the valve core is rotatably arranged in the valve body;

and one end of the valve rod is connected with the valve core, and the other end of the valve rod is connected with the screw rod.

Optionally, the valve further comprises a limiting block, a limiting portion is arranged on the valve rod, and the limiting block is sleeved outside the limiting portion.

Optionally, the valve further comprises a receiving member having an opening, and a receiving cavity is formed in the receiving member;

the other end of the valve rod is connected with the screw rod through a fourth gear, and the fourth gear is contained in the containing cavity.

Has the advantages that:

according to the emergency treatment valve, the crank rocker mechanism is adopted, so that a worker can drive the crank rocker mechanism in a pedal mode, and compared with a mode of manually closing the valve, the pedal driving mode is quicker, and the closing time of the valve is shortened; and the crank rocker mechanism is connected with the valve through the speed change mechanism, so that the input power is reduced in a mode of increasing the rotating speed, and the labor-saving effect can be realized.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

Fig. 1 is a schematic structural diagram of an emergency treatment valve according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an emergency treatment valve according to a second embodiment of the present invention;

FIG. 3 is an exploded schematic view of the valve of FIGS. 1 and 2;

fig. 4 is a schematic cross-sectional view of the valve of fig. 1 and 2.

Reference numerals:

1-a valve;

10-gear lead screw;

101-a third gear;

102-a lead screw;

11-a valve body;

111-an upper valve body;

112-a lower valve body;

12-a valve core;

121-channel;

13-a valve stem;

131-a limiting part;

14-a limiting block;

141-a first inner wall;

142-a second inner wall;

15-a receptacle;

151-a housing chamber;

16-a fourth gear;

2-a speed change mechanism;

20-a scaffold;

21-a planet wheel;

22-sun gear;

23-a gear ring;

24-a planet carrier;

25-a first gear;

26-a second gear;

3-crank rocker mechanism;

31-a foot pedal;

32-connecting rod;

33-crankshaft.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, unless explicitly stated or limited otherwise, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it should be understood that the terms "upper" and "lower" as used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Fig. 1 is a schematic structural diagram of an emergency treatment valve according to an embodiment of the present invention. The emergency treatment valve comprises a valve 1, a speed change mechanism 2 and a crank rocker mechanism 3, wherein the speed change mechanism 2 and the crank rocker mechanism 3 are both arranged on a support 20.

The speed change mechanism 2 is connected with the valve 1, the crank rocker mechanism 3 comprises a pedal 31, a connecting rod 32 and a crankshaft 33 which are connected in sequence, and the crankshaft 33 is connected with the speed change mechanism 2. According to the emergency treatment valve, the crank and rocker mechanism 3 is adopted, so that a worker can drive the crank and rocker mechanism 3 in a pedal mode, and compared with a mode of manually closing the valve, the pedal driving mode is quicker, and the closing time of the valve is shortened; the crank rocker mechanism 3 is connected with the valve 1 through the speed change mechanism 2, so that the input power is reduced in a mode of increasing the rotating speed, and the effect of saving labor can be achieved.

When an emergency occurs and the electric valve cannot be normally powered to work, a worker steps on the pedals 31, for example, one of the pedals 31 can be stepped on the pedal 31, so that the pedal 31 can swing back and forth; since the pedal 31, the connecting rod 32 and the crankshaft 33 are connected in sequence, the crankshaft 33 is driven to make a circular motion by the swinging of the pedal 31, and the transmission mechanism 2 is driven to work. It can be understood that the pedal mode replaces the manual screwing mode in the prior art, so that the valve can be closed efficiently and quickly by workers; and adopt pedal mode, when staff's a foot had tired, can trade another foot and carry out pedal work again, and the valve is closed to manual usually, needs two hands to mutually support and revolves soon, can know from this that the pedal driven mode that this application provided is more convenient and fast.

In one embodiment, the transmission mechanism 2 is a planetary gear mechanism, and the planetary gear mechanism achieves the effect of saving labor, that is, the input power is reduced by increasing the rotation speed of the input gear, so that the number of teeth of the input gear needs to be designed to be smaller than the number of teeth of the output gear.

Further, the planetary gear mechanism comprises a planetary gear 21, a sun gear 22 and a ring gear 23, the planetary gear 21 is connected with the crankshaft 33, the planetary gear 21 rotates between the sun gear 22 and the ring gear 23, and the ring gear 23 is connected with the valve 1. In the present embodiment, the sun gear 22 is fixed to the carrier 20 and is driven to rotate by the rotation of the planetary gears 21; the number of the planet wheels 21 is three, the three planet wheels 21 are connected through a planet carrier 24, and the planet carrier 24 is connected with the crankshaft 33, so that when the crankshaft 33 makes circular motion, the planet wheels 21 can also make circular motion; the gear ring 23 is internally meshed with the planetary gear 21, and the gear ring 23 can also do circular motion under the driving of the planetary gear 21, so as to drive the valve 1 to be closed.

In the present embodiment, the input gear is a planetary gear 21, and the output gear is a ring gear 23, and obviously, the number of teeth of the planetary gear 21 is much smaller than that of the inner ring of the ring gear 23. For example, the number of teeth of the planet wheel 21 is one fiftieth to one twentieth of the number of teeth of the inner ring of the ring gear 23, that is, the planet wheel 21 needs to rotate for fifty circles (or twenty circles), and the ring gear 23 rotates for one circle, so that the labor-saving effect is achieved.

In the present embodiment, the number of the planetary gears 21 is three, so that when the planetary gears 21 rotate, the torque applied to the planet carrier 24 can be uniformly distributed by the planetary gears 21, thereby realizing the stability of the motion of the planetary gear mechanism.

In some embodiments, the planetary gear mechanism comprises a planet wheel 21, a sun wheel 22 and a ring gear 23, the planet wheel 21 is connected with a crankshaft 33, and the planet wheel 21 rotates between the sun wheel 22 and the ring gear 23; the sun wheel 22 is connected to the valve 1 (this connection, not shown) and the number of teeth of the planet wheels 21 is smaller than that of the sun wheel 22. In the present embodiment, the input gear is the planet gear 21, the output gear is the ring gear 23, for example, the number of teeth of the planet gear 21 is one twentieth to one tenth of the number of teeth of the sun gear 22, that is, the planet gear 21 needs to rotate twenty circles (or ten circles), and the sun gear 22 rotates one circle, so as to achieve the effect of saving labor. Compared with the embodiment that the output gear is the gear ring 23, the embodiment has poor labor-saving effect, but the number of turns of the planet wheel 21 is reduced when the valve 1 is closed.

Fig. 2 is a schematic structural diagram of an emergency treatment valve according to a second embodiment of the present invention. The transmission mechanism 2 may be a planetary gear mechanism, or may be a general gear set, for example, the transmission mechanism 2 includes a first gear 25 and a second gear 26, the first gear 25 is connected to the crankshaft 33, the second gear 26 is connected to the first gear 25 and the valve 1, respectively, and the number of teeth of the first gear 25 is smaller than that of the second gear 26. For example, the number of teeth of the first gear 25 is one fiftieth to one twentieth of the number of teeth of the second gear 26, that is, the first gear 25 needs to make one fifty turn (or twenty turns), and the second gear 26 makes one turn, so as to achieve the effect of saving labor.

In some embodiments, with continued reference to fig. 2, the first gear 25 may be disposed outside the second gear 26, and the two are in external meshing connection; in other embodiments, the first gear 25 may be disposed inside the second gear 26, and the two gears are connected by an inner mesh (not shown). The two matching modes of the general gear set can realize the effect of speed change and labor saving, and the gear set is not particularly limited in the application.

The specific structure of the valve 1 is described below.

As shown in fig. 3, which is an exploded view of the valve 1 of fig. 1 and 2. The valve 1 comprises a gear lead screw 10 arranged between the speed change mechanism 2 and the valve 1, the gear lead screw 10 comprises a third gear 101 and a lead screw 102, the third gear 101 is connected with the speed change mechanism 2, and is particularly connected with an output gear, for example, the third gear 101 can be meshed with the outer ring of the gear ring 23, or the third gear 101 can be meshed with the outer ring of the second gear 26; one end of the screw 102 is connected to the third gear 101, and the other end is connected to the valve 1. Alternatively, the gear screw 10 is integrally formed, such as integrally cast or forged. By providing the gear screw 10, a change of direction of the driving force can be achieved, for example, the force between the third gear 101 and the gear ring 23 is directed in a first direction, the force between the screw 102 and the valve 1 is directed in a second direction, the first direction being perpendicular to the second direction, and thus the driving of the valve 1 is achieved.

In some embodiments, the valve 1 further comprises a valve body 11, a valve spool 12, and a valve stem 13, wherein:

the valve stem 11 specifically includes an upper valve body 111 and a lower valve body 112, and the assembly of the valve body 11 is realized by the cooperation of the upper valve body 111 and the lower valve body 112, for example, by means of bolt fastening.

The assembled valve body 11 has a hollow cavity, the valve core 12 is rotatably disposed in the valve body 11, the valve core 12 has a passage 121, when the passage 121 and the liquid in the valve body 11 flow in the same direction, the valve 1 is in an open state, and along with the gradual rotation of the valve core 12, an included angle between the passage 121 and the liquid flow direction in the valve body 11 is gradually increased, for example, when the included angle is greater than 45 ° or 60 °, the liquid in the valve body 11 cannot flow through the passage 121, and at this time, the valve is in a closed state.

One end of the valve rod 13 is connected to the valve body 12, and the other end is connected to the screw 102. Alternatively, the stem 13 and the valve core 12 may be integrally formed, so that the valve core 12 can be moved by controlling the rotation of the stem 13. Of course, the valve rod 13 and the valve core 12 may be separate structures, and after the two are assembled and molded, the valve rod 13 and the valve core 12 may be reinforced and sealed by welding in order to prevent sliding friction between the two.

Fig. 4 shows a schematic cross-sectional view of the valve 1 of fig. 1 and 2. As an implementation manner, the valve 1 further includes a limiting block 14, the valve rod 13 is provided with a limiting portion 131, and the limiting block 14 is sleeved outside the limiting portion 131, so that it can be ensured that the valve rod 13 cannot rotate circularly. Specifically, the inside of the stopper 14 has two first inner walls 141 disposed opposite to each other and two second inner walls 142 disposed opposite to each other, and the first inner walls 141 and the second inner walls 142 are perpendicular to each other. Wherein, spacing portion 131 has the clearance with one of first inner wall 141 and second inner wall 142 in the pivoted in-process of valve rod 13 always, and with the circumstances that the butt can appear in the other, so can realize the restriction effect to valve rod 13 turned angle.

In one embodiment, the valve 1 further includes a receiving member 15 having an opening, a receiving cavity 151 is formed in the receiving member 15, the other end of the valve rod 13 is connected to the screw 102 through a fourth gear 16, the fourth gear 16 is received in the receiving cavity 151, and the purpose of protecting the fourth gear 16 can be achieved by the receiving member 15. Alternatively, the valve rod 13 and the fourth gear 16 may be integrally formed, so that the valve rod 13 can be moved by controlling the rotation of the fourth gear 16. Of course, the valve rod 13 and the fourth gear 16 may be separate structures, and after the two are assembled and molded, the valve rod 13 and the fourth gear 16 may be reinforced and sealed by welding in order to prevent sliding friction between the two.

It is understood that, in order to make it more convenient for the ring gear 23 or the second gear 26 to rotate the third gear 101 or the fourth gear 16, the number of teeth of the ring gear 23 or the second gear 26 is at least five times or more of the number of teeth of the third gear 101 or the fourth gear 16. The operation can be completed in a short time period, so that the safety of the oil tank and personnel can be ensured to the maximum extent.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.