CN114811167A - Valve remote transmission device - Google Patents

Abstract

The invention provides a valve remote transmission device which mainly comprises a main power transmission mechanism, an auxiliary power transmission mechanism, a first key connection mechanism and an operating mechanism. The main power transmission mechanism and the auxiliary power transmission mechanism are respectively connected with a main valve and an auxiliary valve, and the operating mechanism is used for operating the first key connection mechanism so as to enable the main power transmission mechanism and the auxiliary power transmission mechanism to be in transmission connection. The device mainly comprises a main power transmission mechanism, an auxiliary power transmission mechanism, a first key connection mechanism and an operating mechanism. The valve remote transmission device can realize the independent transmission of the main power transmission mechanism to the main valve and the simultaneous transmission of the auxiliary power transmission mechanism to the auxiliary valve through the arranged first key connection mechanism and the operating mechanism, thereby realizing the effect of one-machine double control by using a simpler structure.

Description

Valve remote transmission device

Technical Field

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

Background

The valve remote operation mechanism is a mechanical force transmission mechanism for transmitting the force on a valve driver or a hand wheel to a valve rod to open and close the valve. The remote transmission mechanism is a device which can remotely operate a valve and other hand wheels which are located remotely, difficult to contact or in a dangerous area at a position far away from the valve body. The remote transmission mechanism is generally used in nuclear power high-radiation plants, chemical high-risk areas and other environments.

At present, the arrangement of pipelines in plants such as nuclear power high-radiation plants, chemical high-risk areas and the like is complicated and compact, and from the engineering practice, a plurality of pipeline valves are arranged at positions close to a wall body, but a remote transmission mechanism in the prior art generally comprises connecting shafts, connecting sleeves, couplers, valve connecting assemblies and other like parts. Usually, the complete set of remote transmission mechanism can only realize remote control of a single valve, and corresponding to a plurality of groups of valves, a corresponding remote transmission structure needs to be added, so that the whole pipeline system is more complex, and corresponding production cost is also increased.

For this reason, some remote transmission mechanisms capable of realizing one machine with multiple controls are available on the market, however, most of the remote transmission mechanisms realize remote control of a plurality of valves in an electric control mode. However, the electric remote transmission mechanism is in a chemical plant area, and electronic elements in the electric remote transmission mechanism are easy to have problems and have low reliability; and in the nuclear power high radiation environment, electrodynamic type teletransmission mechanism can directly shut down even, and when the nuclear power high radiation factory building goes wrong, electronic components can directly scrap.

Disclosure of Invention

In view of the above, the present invention is directed to a valve remote transmission device for simultaneously controlling a main valve and an auxiliary valve at a remote location.

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

a valve remote transmission device comprises a main power transmission mechanism, a main transmission shaft, a driving mechanism and a main valve, wherein the main transmission shaft penetrates through a bearing body, and the driving mechanism and the main valve are respectively arranged on two sides of the bearing body and connected with the main transmission shaft;

the auxiliary power transmission mechanism comprises an auxiliary transmission shaft in transmission connection with a transmission wheel sleeved on the main transmission shaft, one end of the auxiliary transmission shaft is connected with an auxiliary valve arranged on the same side of the main valve, and the auxiliary transmission shaft drives the transmission wheel to rotate due to the main transmission shaft so as to open and close the auxiliary valve;

the first key connecting mechanism comprises a first sliding key and a first key slot, wherein the first sliding key is arranged on the main transmission shaft in a sliding manner along the axial direction of the main transmission shaft, and the first key slot is arranged on the transmission wheel and used for the first sliding key to slide in or slide out;

the operating mechanism comprises a first operating part which is arranged on the main transmission shaft in a penetrating way and one end of the first operating part is connected with the first sliding key, and the other end of the first operating part extends out of the bearing body and is positioned on the same side of the driving mechanism;

the first operating part drives the first sliding key to slide into or slide out of the first key groove so as to form the fixed connection or disconnection between the driving wheel and the main transmission shaft, and when the driving mechanism drives the main transmission shaft to rotate, the main transmission shaft drives the auxiliary transmission shaft to rotate so as to form the synchronous opening and closing of the main valve and the auxiliary valve.

Furthermore, the main power transmission mechanism further comprises a connecting shaft assembly connected between the main transmission shaft and the main valve, the connecting shaft assembly and the transmission wheel are located on the same side of the bearing body, and the connecting shaft assembly is connected with the main transmission shaft through a second key connection mechanism.

Furthermore, second key connecting mechanism includes follows main drive shaft's axial slip is located last second sliding key of main drive shaft, and locate confession on the connecting sleeve of connecting shaft subassembly second sliding key slips into or the second keyway of roll-off.

Furthermore, the operating mechanism further comprises a second operating part which is arranged on the main transmission shaft in parallel with the first operating part, wherein the second operating part is provided with one end connected with the second sliding key and the other end extending out of the bearing body.

Furthermore, a threaded rod capable of being in threaded connection with the transmission shaft is arranged at the other end of the first operating part and/or the second operating part.

Furthermore, an elastic piece positioned between the first sliding key and the first key groove is sleeved on the first operating piece; and/or the presence of a gas in the gas,

and the second operating piece is sleeved with an elastic piece between the second sliding key and the second key groove.

Furthermore, a driven wheel is arranged on the auxiliary transmission shaft and connected with the transmission wheel through a transmission chain.

Furthermore, a first positioning assembly for positioning and installing the driving wheel is arranged on the main transmission shaft; and/or the presence of a gas in the gas,

and a second positioning assembly for positioning and mounting the driven wheel is arranged on the auxiliary transmission shaft.

Furthermore, the main transmission shaft is arranged on the supporting body through a wall penetrating pipe assembly; and/or the presence of a gas in the gas,

the auxiliary transmission shaft is arranged on the bearing body through a supporting component.

Furthermore, the driving mechanism comprises an operating hand wheel connected with the main transmission shaft; and/or the presence of a gas in the gas,

the axis of the auxiliary transmission shaft and the axis of the main transmission shaft are arranged in parallel.

Compared with the prior art, the invention has the following advantages:

the valve remote transmission device can realize the independent transmission of the main power transmission mechanism to the main valve and the simultaneous transmission of the auxiliary power transmission mechanism to the auxiliary valve through the arranged first key connection mechanism and the operating mechanism, thereby realizing the effect of one-machine double control by using a simpler structure.

In addition, through the arrangement of the second key connection mechanism, the remote auxiliary valve can be controlled by independently adopting the auxiliary power transmission mechanism under the condition that the main power transmission mechanism does not control the main valve, so that the operability of the valve remote transmission device can be enhanced. Through the threaded rod that sets up at the other end of first operating parts and second operating parts, can restrict the ascending displacement of first sliding key and second sliding key in the play transmission shaft axial to the key-type connection of first sliding key and second sliding key in making operating mechanism is more stable.

In addition, through the arrangement of the first positioning assembly and the second positioning assembly, the driving wheel and the driven wheel can be limited to move back and forth in the axial directions of the main transmission shaft and the auxiliary transmission shaft in the process of power transmission, and power transmission between the main power transmission mechanism and the auxiliary power transmission mechanism is facilitated.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic overall structure diagram of a valve remote transmission device according to an embodiment of the invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

fig. 4 is an enlarged view of a portion C of fig. 1.

Description of reference numerals:

1. a main drive shaft; 110. operating a hand wheel; 12. a main valve; 13. connecting the shaft assembly; 14. a driving wheel; 15. a first positioning assembly; 16. a wall feed-through tube assembly; 161. a bearing flange; 162. connecting a bearing; 163. a shield plug;

2. a secondary drive shaft; 21. an auxiliary valve; 22. a driven wheel; 23. a drive chain; 24. a second positioning assembly; 241. a retainer ring; 242. a flange; 25. a support assembly;

3. a carrier;

4. a first key connection mechanism; 41. a first slide key; 42. a first keyway;

5. a second key connection mechanism; 51. a second slide key; 52. a second keyway;

6. an operating mechanism; 61. a first operating member; 62. a second operating member; 63. an elastic member; 64. a threaded rod.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in conjunction with specific situations.

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

The embodiment relates to a valve remote transmission device which comprises a main power transmission mechanism, an auxiliary power transmission mechanism, a first key connection mechanism 4 and an operating mechanism 6 in an integral structure. The main power transmission mechanism and the auxiliary power transmission mechanism are respectively connected with a main valve 12 and an auxiliary valve 21, and the operating mechanism 6 is used for operating the first key connecting mechanism 4 so as to enable the main power transmission mechanism and the auxiliary power transmission mechanism to be in transmission connection.

By the arrangement, the main power transmission mechanism can remotely transmit and control the main valve 12, and the main power transmission structure and the auxiliary power transmission structure can simultaneously control the main valve 12 and the auxiliary valve 21 in a remote mode, so that the using effect of one machine and double control is achieved.

Based on the above design concept, an exemplary structure of the valve remote transmission device of the present embodiment is shown in fig. 1 to 4. In detail, the valve remote transmission device in this embodiment further includes a main transmission shaft 1 penetrating through the supporting body 3, and a driving mechanism and a main valve 12 respectively disposed on two sides of the supporting body 3 and connected to the main transmission shaft 1, wherein the driving mechanism is configured to drive the main transmission shaft 1 to rotate, so as to open and close the main valve 12.

Meanwhile, the embodiment further comprises an auxiliary power transmission mechanism, specifically, the auxiliary power transmission mechanism comprises an auxiliary transmission shaft 2 which is in transmission connection with a transmission wheel 14 sleeved on the main transmission shaft 1, and one end of the auxiliary transmission shaft 2 is connected with an auxiliary valve 21 which is arranged on the same side as the main valve 12. And the auxiliary transmission shaft 2 rotates because the main transmission shaft 1 drives the transmission wheel 14 to rotate, so as to open and close the auxiliary valve 21.

In order to achieve the effect of one-machine-double control, in the present embodiment, a first key connecting mechanism 4 and an operating mechanism 6 are provided, wherein the first key connecting mechanism 4 includes a first sliding key 41 provided on the main transmission shaft 1 to slide along the axial direction of the main transmission shaft 1, and a first key slot 42 provided on the transmission wheel 14 for the first sliding key 41 to slide in or out.

As for the operating mechanism 6, it includes a first operating member 61 penetrating the main transmission shaft 1 and having one end connected to the first sliding key 41, and the other end of the first operating member 61 extends out of the carrier 3 and is located on the same side as the driving mechanism.

In practical implementation, as shown in fig. 1, the first operating member 61 includes a first metal rod having one end connected to the first sliding key 41, but may be a rod-shaped structure capable of maintaining a certain rigidity in the axial direction, besides the first metal rod. As shown in fig. 1, the first metal rod drives the first sliding key 41 to slide into or out of the first key slot 42 under an external operation (such as manual or electric operation), so as to form a fixed connection or disconnection between the transmission wheel 14 and the main transmission shaft 1, and when the driving mechanism drives the main transmission shaft 1 to rotate, the main transmission shaft 1 drives the auxiliary transmission shaft 2 to rotate, thereby forming a synchronous opening and closing of the main valve 12 and the auxiliary valve 21.

It should be noted that the dimensions of the structures of the main drive shaft 1 and the counter drive shaft 2 mentioned in the present embodiment may be obtained by referring to products commonly used in the art.

In order to be able to use the secondary power transmission mechanism alone to control the remote secondary valve 21, in the present embodiment, there is a more preferred embodiment for the primary power transmission mechanism and the operating mechanism 6.

In detail, it is also shown in fig. 1. In the main power transmission mechanism, the main power transmission mechanism also comprises a connecting shaft component 13 connected between the main transmission shaft 1 and the main valve 12, wherein the connecting shaft component 13 and the transmission wheel 14 are positioned at the same side of the bearing body 3 and comprise two universal shaft connectors, and the main transmission shaft 1 of the universal shaft connector at the left side is connected through a second key connection mechanism 5; the right universal shaft connector is connected with a main valve 12 at a far position through a universal valve connecting assembly; as for the connection mode between the two universal couplings, a connecting shaft is arranged between the two universal couplings, and the right universal coupling on the right side is arranged at the right end of the connecting shaft through a spline.

As for the second key connecting mechanism 5 described above, as shown in fig. 2, it includes a second sliding key 51 provided on the main drive shaft 1 to slide in the axial direction of the main drive shaft 1, and a second key groove 52 provided on the connecting sleeve of the connecting shaft assembly 13 for the second sliding key 51 to slide in or out.

Furthermore, the operating mechanism 6 comprises a second operating member 62 arranged on the main drive shaft 1 in parallel with the first metal bar of the first operating member 61, and a second metal bar is also arranged in the second operating member 62, having one end connected to the second sliding key 51 and having the other end protruding out of the carrier 3. Preferably, a threaded rod 64 capable of being threadedly coupled to the transmission shaft is provided on the other end of the first metal rod and the second metal rod.

Of course, it is also possible to provide the first operating member 61 and the second operating member 62 alternatively. In this embodiment, in order to stabilize the key connection of the first slide key 41 and the second slide key 51, threaded rods 64 that are screwed together are provided at the other ends of the two.

As for the connection of the threaded rod 64 to the first metal rod and the second metal rod, the connection between the first metal rod and the threaded rod 64 is a ball joint, and the two are coaxially arranged and can rotate with each other in the radial direction. Meanwhile, a screw groove is formed in the main drive shaft 1 corresponding to the screw rod 64. In this manner, the first slide key 41 can be controlled to slide in and out in the operation at the time interval by screwing in and out the threaded rod 64 in the threaded groove.

As for the connection manner of the threaded rod 64 and the second metal rod, and the step of controlling the sliding in and out of the second slide key 51 through the threaded rod 64, the principle and process thereof can be referred to above, and will not be described herein in detail.

Preferably, in this embodiment, in order to facilitate the sliding of the first sliding key 41 into and out of the first key slot 42, as shown in fig. 3, an elastic member 63 is sleeved on the first operating member 61 and located between the first sliding key 41 and the first key slot 42, and as for the selection of the elastic member 63, it can be selected as a spring.

In practical implementation, the spring is compressed during the process that the first sliding key 41 slides out of the first key slot 42; in the process that the first sliding key 41 slides into the first key groove 42, the spring gradually returns to an unstressed state; in the process of sliding in and out the first slide key 41, the metal rod in the first operation member 61 is always subjected to a tensile force due to the spring, and therefore, in this embodiment, it is also possible to replace the metal rod with a wire rope.

Of course, in the same way as above, the second operating element 62 may also be sleeved with a sliding key elastic element 63 located between the second sliding key 51 and the second key slot 52, and the operation principle and process of this elastic element 63 and the first operating element are the same, which will not be described in detail herein.

It should be noted that the elastic member 63 is provided to facilitate the sliding of the sliding key into and out of the key slot, and the first operating member 61 and the second operating member 62 can still work normally without the elastic member 63; therefore, the elastic member 63 may be provided alternatively to the first operating member 61 and the second operating member 62. However, in the present embodiment, from the viewpoint of practicality, it is preferable that the elastic member 63 is provided in each of the first operation member 61 and the second operation member 62.

In this embodiment, the valve remote transmission device has three states of use:

one is as follows: the first sliding key 41 slides into the first key slot 42, and the second sliding key 51 slides out of the second key slot 52, at this time, the main valve 12 at a far position is controlled only by the main power transmission mechanism in the embodiment; the second step is as follows: the first sliding key 41 slides into the first key slot 42, and the second sliding key 51 also slides into the second key slot 52, at this time, the main valve 12 and the auxiliary valve 21 at the far distance are respectively controlled by the main power transmission mechanism and the auxiliary power transmission mechanism at the same time in this embodiment; and thirdly: the first sliding key 41 slides out of the first key slot 42, and the second sliding key 51 slides into the second key slot 52, so that the remote sub-valve 21 is controlled only by the sub-power transmission mechanism in this embodiment. So far, the present embodiment can realize separate control and simultaneous control of the remote main valve 12 and the auxiliary valve 21 through the above operation process.

In the process of controlling the auxiliary power transmission mechanism through the main power transmission mechanism, the transmission mode of the power between the main power transmission mechanism and the auxiliary power transmission mechanism can be belt transmission, chain transmission, meshing transmission or the like. In the present embodiment, the transmission mode is selected as a chain transmission in terms of both the stability and the cost of the transmission. In the process of power transmission, power is transmitted between the driving wheel 14 on the main transmission shaft 1 and the driven wheel 22 on the auxiliary rotating shaft through the transmission chain 23, and the main transmission shaft 1 drives the auxiliary transmission shaft 2 to rotate under the action of the transmission chain 23.

In addition, in order to make the driving wheel 14 maintain stable axial position during the driving process, as shown in fig. 1 and fig. 4, the main transmission shaft 1 is provided with a first positioning assembly 15 for positioning and installing the driving wheel 14, the first positioning assembly 15 includes a flange 242 formed on the main transmission shaft 1 and a retaining ring 241 arranged corresponding to the flange 242, and the driving wheel 14 is clamped between the flange 242 and the retaining ring 241 to form the form retention during the driving process.

Similarly, for the auxiliary transmission shaft 2, a second positioning component 24 for mounting the driven wheel 22 can be added, and the specific arrangement of the second positioning component 24 can refer to the first positioning component 15, which will not be described in detail herein.

It should be noted that, for the second driven wheel 22, the driven wheel 22 may be fixed by using other structures, such as a positioning bearing, besides the second positioning assembly 24, to fix the driven wheel 22.

In this embodiment, the main transmission shaft 1 is fixed on the supporting body 3 through the wall tube assembly 16, and in actual use, the supporting body 3 may be a wall or other structure capable of supporting the transmission shaft. As for the wall tube assembly 16, it includes a bearing flange 161, a bearing and a shielding plug 163, the bearing is separately arranged on both sides of the wall, the bearing on the left side is arranged on the bearing flange 161, the bearing on the right side is arranged on the shielding plug 163, and then the fixing of the wall tube assembly 16 is formed.

For the auxiliary transmission shaft 2, it is installed on the wall body through the supporting component 25, the supporting component 25 includes the bracing piece and installs the bearing on the bracing piece, the auxiliary transmission shaft 2 is as the center through the self central axis of bearing, rotatable installing on the bracing piece through bearing flange 161 and connection bearing 162, moreover, the one end that the auxiliary transmission shaft 2 is close to the supporting body 3, also fix through bearing flange 161 and connection bearing 162, and then, the auxiliary transmission shaft 2 can use self axis as the axle center, rotatable being installed on the wall body.

It is to be noted that, in the present embodiment, as for the sub power transmission mechanism, it may be provided in plurality to control a plurality of sub valves 21. For the plurality of auxiliary power transmission mechanisms, the corresponding second operation pieces 62 are circumferentially arranged on the main transmission shaft 1 at intervals by taking the axis of the main transmission shaft 1 as the center, and the remote control of each auxiliary valve 21 is realized by controlling the threaded rods 64 on each second operation piece. Furthermore, it is possible for the drive mechanism to be provided as an operating hand wheel 110 mounted at the left end of the main drive shaft 1, although it is also possible for the drive mechanism to be provided electrically driven, where appropriate.

In addition, in the embodiment, the axis of the auxiliary transmission shaft 2 is parallel to the axis of the main transmission shaft 1, and thus, the arrangement is common, and can meet most of the use scenes. Certainly, under special conditions, the two can also be arranged in parallel without selection, and when power is transmitted between the main transmission shaft 1 and the auxiliary transmission shaft 2, a corresponding power transmission mechanism is added, for example, transmission is performed by meshing a cross universal shaft and a gear.

The valve remote transmission device in the embodiment can realize the independent transmission of the main power transmission mechanism to the main valve 12 and the transmission of the auxiliary power transmission mechanism to the auxiliary valve 21 through the arranged first key connection mechanism 4 and the arranged control mechanism 6, thereby realizing the effect of one machine and two controls by a simpler structure. Moreover, the invention has the advantages of simple integral structure, ingenious design, easy manufacture, low cost and strong practicability.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A valve remote transmission device, comprising:

the main power transmission mechanism comprises a main transmission shaft (1) penetrating through the bearing body (3), and a driving mechanism and a main valve (12) which are respectively arranged on two sides of the bearing body (3) and connected with the main transmission shaft (1), wherein the driving mechanism is used for driving the main transmission shaft (1) to rotate so as to form the opening and closing of the main valve (12);

the auxiliary power transmission mechanism comprises an auxiliary transmission shaft (2) which is in transmission connection with a transmission wheel (14) sleeved on the main transmission shaft (1), one end of the auxiliary transmission shaft (2) is connected with an auxiliary valve (21) which is arranged on the same side as the main valve (12), and the auxiliary transmission shaft (2) rotates due to the fact that the main transmission shaft (1) drives the transmission wheel (14) to rotate, so that the auxiliary valve (21) is opened and closed;

the first key connecting mechanism (4) comprises a first sliding key (41) which is arranged on the main transmission shaft (1) in a sliding manner along the axial direction of the main transmission shaft (1), and a first key slot (42) which is arranged on the transmission wheel (14) and used for the first sliding key (41) to slide in or out;

the operating mechanism (6) comprises a first operating piece (61) which is arranged on the main transmission shaft (1) in a penetrating way and one end of the first operating piece is connected with the first sliding key (41), and the other end of the first operating piece (61) extends out of the bearing body (3) and is positioned on the same side of the driving mechanism;

when the driving mechanism drives the main transmission shaft (1) to rotate, the main transmission shaft (1) drives the auxiliary transmission shaft (2) to rotate, and the main valve (12) and the auxiliary valve (21) are synchronously opened and closed.

2. The valve gate remote according to claim 1, wherein:

the main power transmission mechanism further comprises a connecting shaft assembly (13) connected between the main transmission shaft (1) and the main valve (12), the connecting shaft assembly (13) and the transmission wheel (14) are located on the same side of the bearing body (3), and the connecting shaft assembly (13) is connected with the main transmission shaft (1) through a second key connection mechanism (5).

3. The valve remote according to claim 2, wherein:

second key connecting mechanism (5) include along the axial slip of final drive shaft (1) is located second sliding key (51) on final drive shaft (1) and locate confession on the connecting sleeve of connecting axle subassembly (13) second sliding key (51) second keyway (52) of sliding in or roll-off.

4. The valve gate remote according to claim 3, wherein:

the operating mechanism (6) further comprises a second operating member (62) arranged on the main transmission shaft (1) in parallel with the first operating member (61), and the second operating member (62) has one end connected with the second sliding key (51) and the other end extending out of the bearing body (3).

5. The valve gate remote according to claim 4, wherein:

and a threaded rod (64) which can be in threaded connection with the transmission shaft is arranged at the other end of the first operating part (61) and/or the second operating part (62).

6. The valve gate remote according to claim 4, wherein:

the first operating piece (61) is sleeved with an elastic piece (63) positioned between the first sliding key (41) and the first key groove (42); and/or the presence of a gas in the gas,

and an elastic piece (63) positioned between the second sliding key (51) and the second key groove (52) is sleeved on the second operating piece (62).

7. The valve gate remote according to claim 1, wherein:

a driven wheel (22) is arranged on the auxiliary transmission shaft (2), and the driven wheel (22) is connected with the transmission wheel (14) through a transmission chain (23).

8. The valve door remote according to claim 7, wherein:

a first positioning component (15) for positioning and mounting the driving wheel (14) is arranged on the main transmission shaft (1); and/or the presence of a gas in the gas,

and a second positioning assembly (24) for positioning and mounting the driven wheel (22) is arranged on the auxiliary transmission shaft (2).

9. The valve remote according to any one of claims 1 to 8, wherein:

the main transmission shaft (1) is arranged on the bearing body (3) through a wall penetrating pipe assembly (16); and/or the presence of a gas in the gas,

the auxiliary transmission shaft (2) is arranged on the bearing body (3) through a supporting component (25).

10. The valve remote according to any one of claims 1 to 8, wherein:

the driving mechanism comprises an operating hand wheel (110) connected with the main transmission shaft (1); and/or the presence of a gas in the gas,

the axis of the auxiliary transmission shaft (2) and the axis of the main transmission shaft (1) are arranged in parallel.

Images