CN109707900B

CN109707900B - Valve remote transmission device

Info

Publication number: CN109707900B
Application number: CN201811646303.5A
Authority: CN
Inventors: 吴世荣
Original assignee: Neway Valve Suzhou Co Ltd
Current assignee: Neway Valve Suzhou Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2021-04-30
Anticipated expiration: 2038-12-29
Also published as: CN109707900A

Abstract

The invention discloses a valve remote transmission device, which comprises: valve, actuating mechanism and coupling mechanism. The valve comprises a rotating hand wheel for driving the valve to open and close; the driving mechanism and the valve are respectively arranged on two sides of the isolation component; the connecting mechanism penetrates through the isolation component to connect the valve and the driving mechanism, and the driving mechanism transmits power to the valve through the connecting mechanism; the connecting mechanism comprises a driving end directly connected to the rotating hand wheel; the driving end is detachably connected with the rotating hand wheel. Through setting up the valve respectively in the both sides of separator with actuating mechanism, need not to dismantle valve overall structure or change valve primary structure, directly can dismantle the lug connection with coupling mechanism's link and the rotatory hand wheel of valve to drive power through direct action at actuating mechanism, thereby control opening and close of valve, thereby reduce the change to valve self structure, also reduce inside valve self security performance and obtain effectively guaranteeing.

Description

Valve remote transmission device

Technical Field

The invention relates to the technical field of valves, in particular to a valve remote transmission device.

Background

The nuclear power station shields and isolates a safe area through the shielding door, field workers do not enter the shielding door to operate, a valve used in a pipeline of the nuclear power station is positioned on the inner side of the shielding door through a valve body, a valve seat and a valve rod, and an operation structure integrally formed on the valve rod penetrates through the shielding door and extends to the outside; an operator operates a hand wheel of the structure outside the shielding door to open or close the valve.

Similar to the arrangement mode of valves in nuclear power plants, the valves which are buried underground at present also leak operation structures above the ground, and a valve body, a valve clack and a valve rod are buried in the ground. For example, chinese patent document CN204573294U discloses a buried stop valve, which includes a lower valve stem, an upper valve stem, a valve stem nut connecting the top of the lower valve stem with the bottom of the upper valve stem, a threaded fit between the valve stem nut and the lower valve stem to form a lead screw structure, and a hand wheel fixed on the upper valve stem; the stop valve is buried underground, and only the hand wheel leaks out above the ground. When the valve is opened or closed, the hand wheel rotates to drive the upper valve rod and the valve rod nut to rotate, and the lower valve rod is driven to do ascending motion or descending motion in the vertical direction.

However, in the valve arrangement mode of the above structure, after the valve operation part needs to be buried, a connecting mechanism needs to be used to connect the external driving mechanism and the internal valve, and in the prior art, the long shaft connecting piece (upper valve rod) is used to connect the external hand wheel and the lower valve rod in a transmission manner, and the structure of the internal valve needs to be modified, for example, the hand wheel of the internal valve is removed to expose the lower valve rod inside, and the two valve rods are structurally modified to connect the two valve rods in a transmission manner, so that the structure of the valve is greatly modified, and the valve is not easy to be directly installed and used from the outside; the installation procedure is complex, the difficulty is high, multiple times of debugging are needed to realize the relative certainty of the installation position of the valve, and the valve is not beneficial to modern operation, production and use.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is the defect that the structure of the valve is greatly changed, the valve is not convenient to be directly installed and used from the outside, and the valve is not convenient to be modernized, operated, produced and used in the prior art.

Therefore, the invention provides a valve remote transmission device, which comprises:

the valve comprises a rotating hand wheel for driving the valve to open and close;

the driving mechanism and the valve are respectively arranged on two sides of the isolation component;

the connecting mechanism penetrates through the isolation component to connect the valve and the driving mechanism, and the driving mechanism transmits power to the valve through the connecting mechanism; the connecting mechanism comprises a driving end directly connected to the rotating hand wheel; the driving end is detachably connected with the rotating hand wheel.

Preferably, in the valve remote transmission device, the driving end includes a flange fixed in cooperation with the rotating hand wheel; the rotary hand wheel comprises a plurality of spokes which are radially arranged outwards from the center of the rotary hand wheel, and the spokes are fixedly connected with the flange through fixing pieces.

Further preferably, in the valve remote transmission device, the fixing member includes a ring buckle surrounding each spoke, a fixing hole for the ring buckle to pass through is formed in the connecting flange, and the spoke is fixedly connected to the flange through the ring buckle.

Further preferably, in the valve remote transmission device, the ring buckle includes a U-shaped bolt and nuts respectively connected to two ends of the U-shaped bolt.

Further preferably, in the valve remote transmission device, an avoidance space allowing the valve rod to move is further provided at a position, corresponding to the valve rod, on the flange.

Further preferably, in the valve remote transmission device, the connecting mechanism further includes a transmission rod in transmission connection with the driving mechanism, and the transmission rod penetrates through the isolation component; one end of the flange is in transmission connection with the driving mechanism, and the end positioned on the other side of the isolation component is fixedly connected with the flange.

Further preferably, in the valve remote transmission device, the transmission rod is in transmission connection with the driving mechanism through a first clutch component, and the first clutch component is arranged at the end part of the transmission rod connected with the driving mechanism.

Further preferably, in the valve remote transmission device, the first clutch component is a non-circular counter bore formed at an end of the transmission rod.

Further preferably, in the valve remote transmission device, the driving mechanism includes:

the driving hand wheel is used for inputting power for opening and closing the valve;

the driving rod is in transmission connection with the driving hand wheel and is used for transmitting the movement of the driving hand wheel; and a second clutch part which can be in transmission connection with the first clutch part is arranged at the end part of the driving rod.

Further preferably, in the valve remote transmission device, the second clutch component is a non-circular shaft in insertion fit with the non-circular counterbore, and the radial cross-sectional shapes of the non-circular shaft and the non-circular counterbore are the same.

Preferably, in the valve remote transmission device, the driving mechanism further includes a hollow outer sleeve, which includes a hollow driving cavity, the driving rod is sleeved in the driving cavity, and an end portion of one side of the outer sleeve, which is close to the valve, is fixed to the isolation component in a sealing manner.

Further preferably, the valve remote transmission device further comprises an indication mechanism connected to the driving rod, the indication mechanism is used for indicating opening and closing of the valve, the outer sleeve further comprises an indication window extending in the axial direction and communicated with the driving cavity, and the indication window is used for displaying the indication mechanism.

Further preferably, in the valve remote transmission device, the indicating mechanism includes:

the mounting body is in threaded connection with the outer peripheral surface of the driving rod;

and the indicating body is displayed in an indicating window and used for indicating the position of the mounting body on the driving rod.

The technical scheme provided by the invention has the following advantages:

1. the invention provides a valve remote transmission device, which comprises: valve, actuating mechanism and coupling mechanism. The valve comprises a rotary hand wheel for driving the valve to open and close; the driving mechanism and the valve are respectively arranged on two sides of the isolation component; the connecting mechanism penetrates through the isolation component to connect the valve and the driving mechanism, and the driving mechanism transmits power to the valve through the connecting mechanism; the connecting mechanism comprises a driving end directly connected to the rotating hand wheel; the driving end is detachably connected with the rotating hand wheel.

According to the valve remote transmission device with the structure, the valve and the driving mechanism are respectively arranged on two sides of the isolation part, the whole structure of the valve does not need to be disassembled or the original structure of the valve does not need to be changed, the connecting end of the connecting mechanism is directly and detachably connected with the rotating hand wheel of the valve, and the driving force is directly acted on the driving mechanism, so that the opening and closing of the valve are controlled, the change of the structure of the valve is reduced, and the safety performance of the internal valve is effectively guaranteed; meanwhile, the arrangement of the connecting mechanism is more convenient for the whole field installation of the remote transmission device, the installation and assembly efficiency is improved, the field installation and use are facilitated, and the modern operation, production and use are facilitated.

2. The valve remote transmission device provided by the invention is characterized in that the driving end comprises a flange which is matched and fixed with the rotating hand wheel; the rotary hand wheel comprises a plurality of spokes which are radially arranged outwards from the center of the rotary hand wheel, and the spokes are fixedly connected with the flange through fixing pieces. In the valve remote transmission device with the structure, as the spoke radiates outwards from the center of the spoke, the farther the position of the spoke is acted with the center, the smaller the driving force required for driving the valve to open and close; the flange passes through mounting and spoke fixed connection, can be through adjusting the position that the mounting is connected, and then change the size of drive power, and then improve the suitability that the actual production of valve teletransmission device is suitable for.

3. The fixing piece comprises buckles which are arranged around the spokes respectively, fixing holes through which the buckles pass are formed in the connecting flange, and the spokes are fixedly connected to the flange through the buckles. The valve remote transmission device of this structure is through setting up the latch closure that the annular was detained on the spoke back to with through the fixed cooperation of face contact between spoke and the flange, the lifting surface between increase connecting piece and spoke and the flange reduces the mounting to the harm of spoke and flange, thereby avoids because the mounting fracture, and causes the emergence of the unstable condition of drive end and hand wheel.

4. The valve remote transmission device provided by the invention comprises a ring buckle and a nut, wherein the ring buckle comprises a U-shaped bolt and nuts respectively connected with two end parts of the U-shaped bolt. The valve remote transmission device of this structure, the setting that U type bolt can surround the spoke to can encircle in the spoke bottom, further increase area of contact improves spoke and flange fixed connection's stability. Simultaneously, two vertical portions of U type bolt are connected respectively on two lateral wall faces of same spoke, and its two vertical portions bear opening power and closing force respectively when opening valve and closed valve to driving force disperses two different atress departments effectively, improves the life-span of mounting, reduces valve teletransmission device in the use, and frequent change mounting leads to the fact the loaded down with trivial details condition of use, makes things convenient for customer's use installation.

5. According to the valve remote transmission device provided by the invention, an avoidance space allowing the valve rod to move is further arranged at the position, corresponding to the valve rod of the valve, on the flange. The valve remote transmission device with the structure has the advantages that the avoidance space is reserved, so that abrasion between the outer peripheral surface of the valve rod and the inner cavity of the flange is avoided in the process that the valve rod is lifted along the axial direction when the flange is arranged on the spoke; because the valve rod is used as a key part for driving the valve, the service life of the valve is further prolonged by the retention of the avoiding space, and the inconvenience in use caused by the replacement of the valve in the isolating part is reduced; meanwhile, when the connecting mechanism is installed on the valve, the connection mechanism is prevented from being installed and blocked by the protrusion of the valve rod towards the flange side, and convenience in actual field installation is improved.

6. The valve remote transmission device provided by the invention is characterized in that the connecting mechanism further comprises a transmission rod in transmission connection with the driving mechanism, and the transmission rod penetrates through the isolation part; one end of the flange is in transmission connection with the driving mechanism, and the end positioned on the other side of the isolation component is fixedly connected with the flange. The transmission rod is in transmission connection with the driving mechanism through a first clutch part, and the first clutch part is arranged at the end part, connected with the driving mechanism, of the transmission rod. The first clutch component is a non-circular counter bore formed at the end of the transmission rod.

The valve remote transmission device with the structure and the arrangement of the transmission rod ensure that the connecting mechanism spans the isolation part to be respectively connected with the driving part and the hand wheel and transmits the driving force; the first clutch component is arranged to ensure the stability of the driving force of the transmission rod and the driving mechanism during the torsion transmission. In addition, the arrangement of the non-circular counter bore further ensures that the relative position of the transmission rod and the driving mechanism is unique and relatively fixed in the transmission process of rotation.

7. The invention provides a valve remote transmission device, wherein a driving mechanism comprises: the driving hand wheel is used for inputting power for opening and closing the valve; the driving rod is in transmission connection with the driving hand wheel and is used for transmitting the movement of the driving hand wheel; and a second clutch part which can be in transmission connection with the first clutch part is arranged at the end part of the driving rod.

In the valve remote transmission device with the structure, external force acts on the driving hand wheel, so that the force for driving the valve to open and close is transmitted to the rotating hand wheel through the hand wheel and the connecting mechanism, and the opening and closing of the valve are driven and controlled; the driving rod is used as a connecting part which is connected with the driving hand wheel and the driving rod, so that stable transmission of driving force transmitted by the driving hand wheel is guaranteed, meanwhile, the arrangement of the second clutch part at the end part of the driving rod guarantees that the first clutch part and the second clutch part are matched for transmission, and the relative position of the driving rod and the driving mechanism is unique and relatively fixed.

8. According to the valve remote transmission device provided by the invention, the second clutch component is a non-circular shaft which is in plug-in fit with the non-circular counter bore, and the radial cross section shapes of the non-circular shaft and the non-circular counter bore are the same. The valve remote transmission device with the structure further ensures that the relative positions of the transmission rod and the driving rod are unique and fixed in the driving transmission process through the matching arrangement of the second clutch component and the first clutch component.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a valve remote transmission device provided in embodiment 1;

FIG. 2 is an enlarged view of the structure in block A of FIG. 1;

FIG. 3 is a top view of the connection mechanism provided in example 1;

FIG. 4 is a cross-sectional view from another perspective as indicated by block B in FIG. 2;

FIG. 5 is an enlarged view of the structure of block C in FIG. 2;

FIG. 6 is a cross-sectional view of section A-A of FIG. 5;

FIG. 7 is a schematic side view of the driving mechanism provided in embodiment 1;

FIG. 8 is a top view of the indicating mechanism provided in embodiment 1;

FIG. 9 is a schematic view of a partially enlarged structure of a block D in FIG. 1;

description of reference numerals:

1-a valve; 11-rotating the hand wheel; 111-spokes; 12-a valve stem;

2-a drive mechanism; 21-driving a hand wheel; 22-a drive rod; 221-a first projection; 23-a second clutch member; 24-outer sleeve; 241-indication window; 242 — a first boss; 243-oil inlet; 25-a locking element;

3-a connection mechanism; 31-a drive end; 32-avoiding space; 33-a transmission rod; 34-a first clutch member; 35-a fixing hole;

4-a fixing piece; 41-U-shaped bolt; 42-a nut;

5-an indication mechanism; 51-a mounting body; 52-an indicator;

6-isolation component.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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 simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

The embodiment provides a valve remote transmission device, as shown in fig. 1 to 9, including a driving mechanism 2, a connecting mechanism 3 and a valve 1, which are sequentially arranged from top to bottom along a vertical direction. Wherein, the driving mechanism 2 and the valve 1 are respectively arranged at two sides of the isolation component 6; the valve 1 comprises a rotating hand wheel 11 for driving the valve 1 to open and close, and the rotating hand wheel 11 is arranged at the top of the hand wheel; the connecting mechanism 3 passes through the isolation component 6 to connect the valve 1 and the driving mechanism 2, and the driving mechanism 2 transmits power to the valve 1 through the connecting mechanism 3; the connecting mechanism 3 is detachably connected with the rotating hand wheel 11.

As shown in fig. 1 to 4, the coupling mechanism 3 comprises a drive end 31 directly connected to the rotating hand wheel 11, and a transmission rod 33 drivingly connected to the drive mechanism 2. Wherein, the driving end 31 comprises a flange which is matched and fixed with the rotating hand wheel 11; the transmission rod 33 and the flange are coaxially arranged, the transmission rod 33 penetrates through the isolation part 6, the top of the transmission rod 33 is in transmission connection with the driving mechanism 2, and the bottom of the transmission rod 33 is fixedly connected with the flange. In this embodiment, the driving rod 33 is connected to the driving end 31 by welding for the convenience of production and processing.

Of course, in alternative embodiments, the drive rod 33 and the drive end 31 can also be provided in one piece, which likewise ensures the production of the coupling mechanism 3.

Specifically, as shown in fig. 2 and 4, the rotating handwheel 11 in the present embodiment includes a plurality of spokes 111 radially arranged from the center thereof, and the flange and the spokes 111 are fixedly connected by the fixing member 4. Since the spokes 111 radiate outward from the center thereof, the farther the position of the spokes 111 from the center, the smaller the driving force required to open and close the valve 1; the flange passes through mounting 4 and spoke 111 fixed connection, can be through adjusting the position that mounting 4 is connected, and then change the size of drive power, and then improve the suitability that valve teletransmission device actual production is suitable for.

For example, in the present embodiment, as shown in fig. 2 and 4, the fixing member 4 includes a ring buckle respectively disposed around each spoke 111, the connecting flange is provided with a fixing hole 35 through which the ring buckle passes, and the spoke 111 is fixedly connected to the flange by the ring buckle. Through setting up the latch closure that the annular of returning was detained on spoke 111 to with the fixed cooperation through the face contact between spoke 111 and the flange, increase the lifting surface between connecting piece and spoke 111 and the flange, reduce the harm of mounting 4 to spoke 111 and flange, thereby avoid because mounting 4 fracture, and cause the emergence of the unstable condition of drive end 31 and hand wheel.

The buckle in this embodiment includes a U-shaped bolt 41 and nuts 42 connected to both ends of the U-shaped bolt 41. As shown in fig. 3, in the present embodiment, the number of the spokes 111 is 5, and correspondingly, the number of the fixing holes 35 on the flange is 10, and two spokes are arranged in pairs for cooperating with the U-shaped bolts 41. The spoke 111 can be surrounded by the U-shaped bolt 41 and can be surrounded at the bottom of the spoke 111, so that the contact area is further increased, and the stability of the fixed connection of the spoke 111 and the flange is improved. Simultaneously, two vertical portions of U type bolt 41 are connected respectively on two lateral wall faces of same spoke 111, and its two vertical portions bear opening power and closing force respectively when opening valve 1 and closed valve 1 to disperse two different atress departments to drive power effectively, improve mounting 4's life-span, reduce valve teletransmission device in the use, frequently change mounting 4 and cause the loaded down with trivial details condition of use, make things convenient for customer's use installation.

Specifically, as shown in fig. 1, the transmission rod 33 is hollow, so that the material usage is reduced, and compared with a rod member which is solid, the torsion resistance of the transmission rod 33 can be further improved, the service life of the transmission rod 33 is further prolonged, and the use and replacement of a valve remote transmission device are reduced. As shown in fig. 2, the flange is further provided with an escape space 32 corresponding to the valve stem 12 of the valve 1 for allowing the valve stem 12 of the valve 1 to move. The avoidance space 32 is reserved to avoid abrasion between the outer peripheral surface of the valve rod 12 and the inner cavity of the flange in the process that the valve rod 12 is lifted along the axial direction when the flange is mounted on the spoke 111; because the valve rod 12 is used as a key part for driving the valve 1, the service life of the valve 1 is further prolonged by the remaining of the avoiding space 32, and the inconvenience in use caused by replacing the valve 1 in the isolating part 6 is reduced; meanwhile, when the connecting mechanism 3 is installed on the valve 1, the connection mechanism 3 is prevented from being installed and blocked by the bulge of the valve rod 12 facing the flange side, and the convenience of actual field installation is improved.

As shown in fig. 5 and 6, the transmission rod 33 and the driving rod 22 (mentioned below) are respectively connected with the second clutch part 23 of the driving rod 22 by the first clutch part 34 of the transmission rod 33, wherein the first clutch part 34 is arranged at the end of the transmission rod 33 connected with the driving rod 22; the second clutch member 23 is provided at the end of the drive rod 22 connected to the drive rod 33. And the first clutch part 34 and the second clutch part 23 are inserted, so that the transmission connection between the transmission rod 33 and the driving mechanism 2 is ensured.

Specifically, in the present embodiment, as shown in fig. 5 and 6, the first clutch member 34 is a non-circular counterbore formed at the end of the drive link 33. The second clutch component 23 is a non-circular shaft which is in plug fit with the non-circular counter bore, and the shape of the radial section of the non-circular shaft is the same as that of the non-circular counter bore. The arrangement of the first clutch part 34 and the second clutch part 23 ensures the stability of the driving force of the transmission rod 33 and the driving mechanism 2 during the torsional transmission. In addition, the arrangement of the non-circular counter bore and the non-circular shaft further ensures that the relative position of the transmission rod 33 and the driving mechanism 2 is unique and relatively fixed in the rotation transmission process.

For example, as shown in fig. 5 and 6, the first clutch member 34 is a square counterbore and the second clutch member 23 is a square shaft. Of course, in alternative embodiments, the first clutch component 34 and the second clutch component 23 may also adopt a triangular hole axis, a pentagonal hole axis, an elliptical hole axis, a special-shaped hole axis, etc., as long as a non-circular structure is ensured.

As shown in fig. 1 and 7, the drive mechanism 2 includes: a drive hand wheel 21, a drive rod 22 and an outer sleeve 24. Wherein, the outer sleeve 24 is arranged in a hollow manner and comprises a hollow driving cavity; the driving rod 22 is sleeved in the driving cavity, and the end part of one side of the outer sleeve 24 close to the valve 1 is fixed with the isolation part 6 in a sealing way. The driving hand wheel 21 is rotatably arranged at the top of the outer pipe sleeve and is used for inputting power for opening and closing the valve 1; the driving rod 22 is fixedly connected with the driving hand wheel 21 through a bolt in a transmission manner and is used for transmitting the movement of the driving hand wheel 21. As in the present embodiment, the first clutch member 34 and the second spacer member 6 are engaged with each other, whereby the driving force of the driving wheel 21 is transmitted to the connection mechanism 3.

In this embodiment, as shown in fig. 9, a first protrusion 221 protruding outward in the radial direction of the drive lever 22 is provided on one side of the drive lever 22 close to the drive handwheel 21; the top of the outer sleeve 24 is provided with a first boss 242 for clamping the first projection 221 of the driving rod 22; the bottom of the first protrusion 221 is overlapped on the top surface of the first boss 242, the top edge of the outer sleeve 24 is further provided with a locking piece 25, the bottom of the locking piece 25 is grounded on the top of the first protrusion 221, the locking piece 25 is fixedly matched with the outer sleeve 24 through threaded connection, axial runout of the driving rod 22 is further guaranteed, and therefore stability of hand wheel transmission is improved.

In this embodiment, as shown in fig. 9, an oil inlet 243 is further disposed on a side wall surface of the outer sleeve 24, and the oil inlet 243 is communicated with a top wall surface and a bottom surface of the first protrusion 221. In addition, when the first protrusion 221 is engaged with the locking member 25 and the first boss 242 of the outer sleeve 24, the top surface and the bottom surface of the first protrusion 221 are both provided with a gasket, so as to further ensure that the torsional friction caused by rotation is reduced, and the part loss is reduced.

The valve remote transmission device in this embodiment, as shown in fig. 8, further includes an indication mechanism 5 connected to the driving rod 22, and the indication mechanism 5 is used to indicate opening and closing of the valve 1. Wherein, the outer sleeve 24 further comprises an indication window 241 extending along the axial direction and communicating with the driving cavity, and the indication window 241 is used for displaying the indication mechanism 5.

Specifically, as shown in fig. 7 and 8, the indicating mechanism 5 includes: a mounting body 51 and an indicator body 52. Wherein, the mounting body 51 is in threaded connection with the peripheral surface of the driving rod 22; the number of the indicating bodies 52 is two, the indicating bodies 52 are symmetrically fixed on the mounting body 51 and extend out of the indicating window 241, and the indicating bodies 52 are displayed in the indicating window 241 for indicating the position of the mounting body 51 on the driving rod 22. For example, the indicator 52 is a pin protruding outward in the radial direction of the mounting body 51; when the valve 1 is closed, the pin shaft is positioned at the bottom of the indicating window 241; when the valve 1 is opened, it is located on the top of the indicating window 241, thereby completing the indication of opening and closing the valve 1.

In the processing and production of the driving mechanism 2 in the embodiment, the production process is as follows: firstly, the part of the driving rod 22 with the external thread is connected with the indicating structure for installation, then, the part of the driving rod 22 with the first bulge 221 is welded with the part with the external thread, and finally, the driving rod 22 is installed in the driving cavity.

In this embodiment, the valve 1 may be a gate valve or a stop valve, or a ball valve, as long as the opening and closing of the valve 1 is controlled by rotating the hand wheel 11.

The valve remote transmission device in this embodiment has the following installation process:

firstly, the flange is fixed with a rotary hand wheel 11 through a U-shaped bolt and a nut 42, so that the connecting mechanism 3 and the valve 1 form a whole for installation, the valve 1 is ensured to be arranged below the isolation part 6, and meanwhile, the first clutch part 34 penetrates through the isolation part 6 and extends out of the isolation part 6; then, the driving rod 22 with the indicating mechanism 5 installed in the previous text is extended into the driving cavity of the outer sleeve 24, the locking piece 25 is pressed on the top of the outer sleeve 24 through a thread structure, and then the driving hand wheel 21 is vertically installed and pressed through a thread piece; finally, all parts above the isolation component 6 are fixedly connected with the isolation component 6 through other fasteners such as washers, nuts and studs, and the first clutch component 34 and the second clutch component 23 are ensured to be mutually inserted and arranged. And finishing the installation of the valve remote transmission device.

According to the valve remote transmission device provided by the embodiment, the valve 1 and the driving mechanism 2 are respectively arranged on two sides of the isolation part 6, the whole structure of the valve 1 does not need to be disassembled or the original structure of the valve 1 does not need to be changed, the connecting end of the connecting mechanism 3 is directly and detachably connected with the rotating hand wheel 11 of the valve 1, and the driving force is directly acted on the driving mechanism 2, so that the opening and closing of the valve 1 are controlled, the change of the structure of the valve 1 is reduced, and the safety performance of the internal valve 1 is effectively guaranteed; meanwhile, the arrangement of the connecting mechanism 3 is more convenient for the whole field installation of the remote transmission device, improves the installation and assembly efficiency, is beneficial to field installation and use and is beneficial to modern operation, production and use.

As a first alternative embodiment of this embodiment, the outer sleeve 24 may not be provided with the first boss 242, and the driving rod 22 may not be provided with the first protrusion 221, so that the driving rod 22 is prevented from jumping vertically during driving only by the pressing action between the driving handwheel 21 and the outer sleeve 24.

As a second alternative embodiment of this embodiment, the flange and the spoke 111 may be connected by a pair of studs and nuts arranged in parallel, and it is sufficient to ensure that the rotation of the spoke 111 and the flange has uniformity.

As a third alternative embodiment of this embodiment, in this embodiment, the connecting mechanism 3 may also be a connecting rod that is vertically arranged, and one side of the connecting rod close to the valve 1 may be connected to a handle of the rotating handwheel 11.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A valve remote transmission device is characterized by comprising,

the valve (1) comprises a rotary hand wheel (11) for driving the valve (1) to open and close;

the driving mechanism (2) and the valve (1) are respectively arranged on two sides of the isolation component;

and a connecting mechanism (3) for connecting the valve (1) and the drive mechanism (2) through the isolation member (6), wherein the drive mechanism (2) transmits power to the valve (1) through the connecting mechanism (3); the coupling mechanism (3) comprises a drive end (31) directly connected to the rotating hand wheel (11); the driving end (31) is detachably connected with the rotating hand wheel (11) through a fixing piece;

the driving end (31) comprises a flange which is matched and fixed with the rotating hand wheel (11); the flange is provided with a fixing hole (35); the rotating hand wheel (11) comprises a plurality of spokes (111) which are radially arranged outwards from the center of the rotating hand wheel;

the fixing piece comprises a ring buckle surrounding the driving end and the rotating hand wheel; and surrounding each of the spokes (111) and the fixing hole (35) by the ring buckle to fixedly connect the spokes (111) and the flange.

2. The valve remote transmission device according to claim 1, wherein the ring fastener comprises a U-shaped bolt (41) and nuts (42) respectively connected to two ends of the U-shaped bolt (41).

3. The valve remote transmission device according to claim 2, characterized in that an avoidance space (32) allowing the valve rod (12) to move is further provided on the flange corresponding to the valve rod (12) of the valve (1).

4. The valve remote transmission device according to claim 3, wherein the coupling mechanism (3) further comprises a transmission rod (33) in transmission connection with the driving mechanism (2), the transmission rod (33) being disposed through the isolation member (6); one end of the flange is in transmission connection with the driving mechanism (2), and the end positioned on the other side of the isolation component (6) is fixedly connected with the flange.

5. The valve remote transmission according to claim 4, characterized in that the transmission rod (33) is in transmission connection with the drive mechanism (2) via a first clutch member (34), the first clutch member (34) being provided at the end of the transmission rod (33) that is connected with the drive mechanism (2).

6. The valve gate remote transmission of claim 5, wherein the first clutch member (34) is a non-circular counterbore formed in the end of the drive rod (33).

7. The valve remote according to claim 6, wherein the drive mechanism (2) comprises:

the driving hand wheel (21) is used for inputting power for opening and closing the valve (1);

the driving rod (22) is in transmission connection with the driving hand wheel (21) and is used for transmitting the movement of the driving hand wheel (21); the end part of the driving rod (22) is provided with a second clutch part (23) which can be in transmission connection with the first clutch part (34).

8. The valve remote transmission device according to claim 7, wherein the second clutch member (23) is a non-circular shaft fitted with a non-circular counterbore, and the non-circular shaft and the non-circular counterbore have the same radial cross-sectional shape.

9. The valve remote transmission device according to claim 7, wherein the driving mechanism (2) further comprises a hollow outer sleeve (24) including a hollow driving cavity, the driving rod (22) is sleeved in the driving cavity, and one side end of the outer sleeve (24) close to the valve (1) is fixed with the isolation component (6) in a sealing manner.

10. The valve remote according to claim 9,

still include with indication mechanism (5) that actuating lever (22) are connected, indication mechanism (5) are used for instructing opening and close of valve (1), still include on outer tube (24) along axial extension and with drive chamber intercommunication indicate window (241), indicate window (241) are used for showing indication mechanism (5).

11. The valve remote according to claim 10, wherein the indicating means (5) comprises:

an attachment body (51) that is screwed to the outer peripheral surface of the drive rod (22);

at least one indicating body (52) fixed on the installation body (51), wherein the indicating body (52) is displayed in an indicating window (241) for indicating the position of the installation body (51) on the driving rod (22).