Valve remote transmission device

Abstract

The present invention provides a valve remote transmission device, which mainly includes a main power transmission mechanism, a secondary power transmission mechanism, a first key connection mechanism and an operating mechanism. Among them, the main power transmission mechanism and the secondary power transmission mechanism are respectively connected to a main valve and a secondary valve, and the operating mechanism is used to operate the first key connection mechanism to achieve a transmission connection between the main power transmission mechanism and the secondary power transmission mechanism. It mainly includes a main power transmission mechanism, a secondary power transmission mechanism, a first key connection mechanism and an operating mechanism. The valve remote transmission device described in the present invention, through the first key connection mechanism and the operating mechanism, can realize the main power transmission structure to independently transmit the main valve, and drive the secondary power transmission mechanism to transmit the secondary valve at the same time, thereby achieving the effect of one machine dual control with a relatively simple structure.

Description

Technical Field

[0001] The invention relates to the technical field of remote power transmission, and in particular to a valve remote transmission device. Background Art

[0002] The remote operating mechanism of the valve is referred to as the remote transmission mechanism. It is a mechanical force transmission mechanism used to transmit the force on the valve driver or handwheel to the valve stem to open and close the valve. The remote transmission mechanism is a device that can remotely operate valves and other handwheels located in remote, difficult to access or dangerous areas at a location far away from the valve body. The remote transmission mechanism is generally used in environments such as nuclear power high-radiation plants and chemical high-risk areas.

[0003] At present, the pipeline layout in nuclear power high radiation plants, chemical high-risk areas and other plants is complicated and compact, and from the perspective of engineering practice, many pipeline valves are arranged very close to the wall. However, the remote transmission mechanism in the prior art is generally composed of shaft parts such as connecting shafts, connecting sleeves, couplings and valve connection components. Usually, this complete set of remote transmission mechanism can only realize the remote control of a single valve. For multiple groups of valves, corresponding remote transmission structures must be added, making the entire pipeline system more complicated and increasing the corresponding production costs.

[0004] For this reason, there are some remote transmission mechanisms on the market that can realize multiple control of one machine. However, most of these remote transmission mechanisms realize remote control of multiple valves through electric control. However, in the chemical plant area, the electronic components inside the electric remote transmission mechanism are very likely to have problems and have low reliability; and in the high radiation environment of nuclear power, the electric remote transmission mechanism may even shut down directly. When problems occur in the high radiation plant of nuclear power, the electronic components will be directly scrapped. Summary of the invention

[0005] In view of this, the present invention aims to provide a valve remote transmission device to achieve simultaneous control of a remote main valve and a secondary valve.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0007] A valve remote transmission device, comprising a main power transmission mechanism, a main transmission shaft passing through a carrier, and a driving mechanism and a main valve connected to the main transmission shaft, which are arranged on both sides of the carrier, wherein the driving mechanism is used to drive the main transmission shaft to rotate, thereby constituting the opening and closing of the main valve;

[0008] The auxiliary power transmission mechanism comprises an auxiliary transmission shaft connected to the transmission wheel sleeved on the main transmission shaft, and an auxiliary valve arranged on the same side as the main valve is connected to one end of the auxiliary transmission shaft, and the auxiliary transmission shaft rotates due to the rotation of the transmission wheel driven by the main transmission shaft, so as to open and close the auxiliary valve;

[0009] The first key connection mechanism comprises a first sliding key slidably arranged on the main transmission shaft along the axial direction of the main transmission shaft, and a first key slot arranged on the transmission wheel for the first sliding key to slide in or out;

[0010] The operating mechanism comprises a first operating member which is passed through the main transmission shaft and connected to the first sliding key at one end, and the other end of the first operating member extends out of the carrier and is located on the same side of the driving mechanism;

[0011] In response to external operation, the first operating member drives the first sliding key to slide into or out of the first key slot to form a fixed connection or disconnection between the transmission 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, thereby forming the synchronous opening and closing of the main valve and the auxiliary valve.

[0012] Furthermore, the main power transmission mechanism also includes 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 carrier, and the connecting shaft assembly and the main transmission shaft are connected via a second key connection mechanism.

[0013] Furthermore, the second key connection mechanism includes a second sliding key provided on the main transmission shaft for sliding along the axial direction of the main transmission shaft, and a second key slot provided on the connecting sleeve of the connecting shaft assembly for the second sliding key to slide in or out.

[0014] Furthermore, the operating mechanism also includes a second operating member arranged on the main transmission shaft in parallel with the first operating member, and the second operating member has one end connected to the second sliding key and has the other end extending out of the carrier.

[0015] Furthermore, a threaded rod capable of being threadedly connected to the transmission shaft is provided on the other end of the first operating member and / or the second operating member.

[0016] Further, the first operating member is sleeved with an elastic member located between the first sliding key and the first key slot; and / or,

[0017] The second operating member is sleeved with an elastic member located between the second sliding key and the second key slot.

[0018] Furthermore, the secondary transmission shaft is provided with a driven wheel, and the driven wheel is connected to the transmission wheel through a transmission chain.

[0019] Furthermore, the main transmission shaft is provided with a first positioning assembly for positioning and installing the transmission wheel; and / or,

[0020] The secondary transmission shaft is provided with a second positioning assembly for positioning and installing the driven wheel.

[0021] Furthermore, the main transmission shaft is arranged on the carrier through a wall-penetrating tube assembly; and / or,

[0022] The auxiliary transmission shaft is arranged on the carrier through a supporting assembly.

[0023] Further, the driving mechanism includes an operating hand wheel connected to the main transmission shaft; and / or,

[0024] The axis of the secondary transmission shaft is arranged in parallel with the axis of the main transmission shaft.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] The valve remote transmission device described in the present invention, through the provision of a first key connection mechanism and an operating mechanism, can realize the independent transmission of the main valve by the main power transmission structure, and drive the auxiliary power transmission mechanism to simultaneously transmit the auxiliary valve, thereby achieving a one-machine dual-control effect with a relatively simple structure.

[0027] In addition, by providing a second key connection mechanism, the present invention can also use a secondary power transmission mechanism alone to control a remote secondary valve when the main power transmission structure does not control the main valve, thereby enhancing the operability of the valve remote transmission device. By providing a threaded rod at the other end of the first operating member and the second operating member, the displacement of the first sliding key and the second sliding key in the axial direction of the output transmission shaft can be limited, so that the key connection of the first sliding key and the second sliding key in the operating mechanism is more stable.

[0028] In addition, by setting up the first positioning assembly and the second positioning assembly, the driving wheel and the driven wheel can limit the axial back and forth movement of the two on the main transmission shaft and the auxiliary transmission shaft during the power transmission process, thereby facilitating power transmission between the main power transmission mechanism and the auxiliary power transmission structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0030] Figure 1It is a schematic diagram of the overall structure of the valve remote transmission device according to an embodiment of the present invention;

[0031] Figure 2 for Figure 1 A magnified view of part A;

[0032] Figure 3 for Figure 1 A magnified view of part B;

[0033] Figure 4 for Figure 1 Enlarged view of part C.

[0034] Description of reference numerals:

[0035] 1. Main transmission shaft; 110. Operating hand wheel; 12. Main valve; 13. Connecting shaft assembly; 14. Transmission wheel; 15. First positioning assembly; 16. Through-wall pipe assembly; 161. Bearing flange; 162. Connecting bearing; 163. Shielding plug;

[0036] 2. Auxiliary transmission shaft; 21. Auxiliary valve; 22. Driven wheel; 23. Transmission chain; 24. Second positioning assembly; 241. Retaining ring; 242. Flange; 25. Support assembly;

[0037] 3. Carrier;

[0038] 4. First key connection mechanism; 41. First sliding key; 42. First key slot;

[0039] 5. Second key connection mechanism; 51. Second sliding key; 52. Second key slot;

[0040] 6. Operating mechanism; 61. First operating member; 62. Second operating member; 63. Elastic member; 64. Threaded rod. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0044] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0045] This embodiment relates to a valve remote transmission device, which includes a main power transmission mechanism, a secondary power transmission mechanism, a first key connection mechanism 4 and a control mechanism 6 in terms of overall structure. The main power transmission mechanism and the secondary power transmission mechanism are respectively connected to a main valve 12 and a secondary valve 21, and the control mechanism 6 is used to control the first key connection mechanism 4 to achieve transmission connection between the main power transmission mechanism and the secondary power transmission mechanism.

[0046] Such an arrangement can not only realize remote control of the main valve 12 by the main power transmission mechanism, but also realize simultaneous control of the remote main valve 12 and the auxiliary valve 21 through the main power transmission structure and the auxiliary power transmission structure, so as to achieve the use effect of one machine dual control.

[0047] Based on the above design concept, an exemplary structure of the valve remote transmission device of this embodiment is as follows: Figures 1 to 4 In detail, the valve remote transmission device in this embodiment also includes a main transmission shaft 1 passing through the carrier 3, and a driving mechanism and a main valve 12 connected to the main transmission shaft 1 and arranged on both sides of the carrier 3. The driving mechanism is used to drive the main transmission shaft 1 to rotate, thereby constituting the opening and closing of the main valve 12.

[0048] At the same time, the present embodiment further includes an auxiliary power transmission mechanism, specifically, the auxiliary power transmission mechanism includes an auxiliary transmission shaft 2 that is transmission-connected to a transmission wheel 14 sleeved on the main transmission shaft 1, and an auxiliary valve 21 that is disposed on the same side as the main valve 12 is connected to one end of the auxiliary transmission shaft 2. Moreover, the auxiliary transmission shaft 2 rotates due to the rotation of the transmission wheel 14 driven by the main transmission shaft 1, so as to open and close the auxiliary valve 21.

[0049] In order to achieve the use effect of one machine with dual controls, in this embodiment, a first key connection mechanism 4 and an operating mechanism 6 are provided, wherein the first key connection mechanism 4 includes a first sliding key 41 provided on the main transmission shaft 1 for axial sliding along the main transmission shaft 1, and a first key groove 42 provided on the transmission wheel 14 for the first sliding key 41 to slide in or out.

[0050] As for the operating mechanism 6, it includes a first operating member 61 which is passed through the main transmission shaft 1 and connected to the first sliding key 41 at one end. The other end of the first operating member 61 extends out of the carrier 3 and is located on the same side of the driving mechanism.

[0051] In specific implementation, Figure 1 As shown, the first operating member 61 includes a first metal rod connected to the first sliding key 41 at one end. Of course, in addition to the first metal rod, a rod-shaped structure that can maintain a certain rigidity in the axial direction is also possible. Figure 1 As shown, the first metal rod drives the first sliding key 41 to slide into or out of the first key slot 42 under external operation (such as manual or electric, etc.), 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 the synchronous opening and closing of the main valve 12 and the auxiliary valve 21.

[0052] It should be noted that the dimensions of the main transmission shaft 1 and the auxiliary transmission shaft 2 mentioned in this embodiment may refer to the common products in the technical field.

[0053] In order to be able to use the auxiliary power transmission mechanism alone to control the remote auxiliary valve 21, in this embodiment, there is a more preferred implementation for the main power transmission mechanism and the operating mechanism 6.

[0054] In detail, Figure 1 As shown. In the main power transmission mechanism, it also includes 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 carrier 3, including two universal shaft connectors, wherein the left universal shaft connector is connected to the main transmission shaft 1 through the second key connection mechanism 5; the right universal shaft connector is connected to the main valve 12 at a distance through the universal valve connection assembly; as for the connection between the two universal couplings, a connecting shaft is provided between the two, and the right universal coupling is installed on the right end of the connecting shaft through a spline.

[0055] For the above-mentioned second key connection mechanism 5, as Figure 2 As shown, it includes a second sliding key 51 provided on the main transmission shaft 1 for sliding along the axial direction of the main transmission shaft 1, and a second keyway 52 provided on the connecting sleeve of the connecting shaft assembly 13 for the second sliding key 51 to slide in or out.

[0056] In addition, the operating mechanism 6 further includes a second operating member 62 arranged on the main transmission shaft 1 in parallel with the first metal rod in the first operating member 61, and a second metal rod is also arranged in the second operating member 62, the second metal rod having one end connected to the second sliding key 51 and the other end extending out of the carrier 3. Preferably, a threaded rod 64 capable of being threadedly connected to the transmission shaft is arranged on the other end of the first metal rod and the second metal rod.

[0057] Of course, it is also possible to select one of the first operating member 61 and the second operating member 62. In this embodiment, in order to make the key connection between the first sliding key 41 and the second sliding key 51 more stable, the other ends of both are provided with a threaded rod 64 that is screwed together.

[0058] As for the connection mode of the threaded rod 64 on the first metal rod and the second metal rod, the connection mode between the first metal rod and the threaded rod 64 is a spherical hinge, the two are coaxially arranged and can rotate relative to each other in the radial direction. At the same time, a thread groove is also provided on the main transmission shaft 1 corresponding to the threaded rod 64. In this way, the first sliding key 41 can be controlled to slide in and out of the first operation by screwing the threaded rod 64 in and out of the thread groove.

[0059] As for the connection method between the threaded rod 64 and the second metal rod, and the steps of controlling the sliding in and out of the second sliding key 51 by the threaded rod 64, the principles and processes thereof can be referred to above and will not be described again here.

[0060] Preferably, in this embodiment, in order to facilitate the first sliding key 41 to slide in and out of the first key slot 42, as shown in FIG. Figure 3 As shown, an elastic member 63 is sleeved on the first operating member 61 and is located between the first sliding key 41 and the first key slot 42. As for the selection of the elastic member 63, a spring can be selected.

[0061] In a specific implementation, when the first sliding key 41 slides out of the first key slot 42, the spring is compressed; when the first sliding key 41 slides into the first key slot 42, the spring gradually returns to a state without force; when the first sliding key 41 slides in and out, due to the action of the spring, the metal rod in the first operating member 61 is always subjected to a tensile force. Therefore, in this embodiment, it is also possible to replace the metal rod with a steel wire rope.

[0062] Of course, similarly to the above, a sliding key elastic member 63 located between the second sliding key 51 and the second key slot 52 can also be mounted on the second operating member 62. The working principle and process of this elastic member 63 are the same as those in the first operating body, and will not be repeated here.

[0063] It should be noted that the elastic member 63 is provided to facilitate the sliding key in and out of the key slot. In the absence of the elastic member 63, the first operating member 61 and the second operating member 62 can still work normally; therefore, the elastic member 63 can also be provided in one of the first operating member 61 and the second operating member 62. However, in this embodiment, from the perspective of practicality, it is preferred that the elastic member 63 is provided in both the first operating member 61 and the second operating member 62.

[0064] In this embodiment, the valve remote transmission device has three usage states when in use:

[0065] First, 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, in this embodiment, the main valve 12 at a distance is controlled only by the main power transmission mechanism; second, 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, in this embodiment, the main valve 12 and the auxiliary valve 21 at a distance are controlled respectively by the main power transmission mechanism and the auxiliary power transmission mechanism at the same time; third, 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. At this time, in this embodiment, the auxiliary valve 21 at a distance is controlled only by the auxiliary power transmission mechanism. So far, through the above-mentioned operation process, this embodiment can realize the separate control and simultaneous control of the main valve 12 and the auxiliary valve 21 at a distance.

[0066] In the process of controlling the auxiliary power transmission mechanism through the main power transmission mechanism, the power transmission mode between the two can be set to belt drive, chain drive or meshing drive, etc. In this embodiment, from the perspectives of transmission stability and cost, the transmission mode is selected as chain drive. In the process of power transmission, power is transmitted between the transmission wheel 14 on the main transmission shaft 1 and the driven wheel 22 on the auxiliary rotating shaft through the transmission chain 23. Under the action of the transmission chain 23, the main transmission shaft 1 drives the auxiliary transmission shaft 2 to rotate.

[0067] In addition, in order to ensure that the transmission wheel 14 can maintain a stable axial position during the transmission process, Figure 1 Combined with Figure 4 As shown, a first positioning assembly 15 for positioning and installing a transmission wheel 14 is provided on the main transmission shaft 1. 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. The transmission wheel 14 is clamped between the flange 242 and the retaining ring 241 to maintain its shape during the transmission process.

[0068] Similarly, for the secondary transmission shaft 2, a second positioning assembly 24 for mounting the driven wheel 22 may also be provided. The specific configuration of the second positioning assembly 24 may refer to the first positioning assembly 15, and will not be described again here.

[0069] It should be noted that, for the second driven wheel 22 , in addition to the second positioning assembly 24 , other structures such as a positioning bearing may also be used to fix the driven wheel 22 .

[0070] During installation of this embodiment, the main transmission shaft 1 is fixed on the carrier 3 through the wall-penetrating tube assembly 16. In actual use, the carrier 3 can be a wall or other structure capable of bearing the transmission shaft. As for the wall-penetrating tube assembly 16, it includes a bearing flange 161, a bearing and a shielding plug 163. The bearings are arranged on both sides of the wall, the left bearing is arranged on the bearing flange 161, and the right bearing is arranged on the shielding plug 163, thereby forming a fixation for the wall-penetrating tube assembly 16.

[0071] As for the auxiliary transmission shaft 2, it is installed on the wall through the support assembly 25. The support assembly 25 includes a support rod and a bearing installed on the support rod. The auxiliary transmission shaft 2 is rotatably installed on the support rod through a bearing flange 161 and a connecting bearing 162 with the central axis of the bearing itself as the center. Moreover, one end of the auxiliary transmission shaft 2 close to the carrier 3 is also fixed by the bearing flange 161 and the connecting bearing 162. Therefore, the auxiliary transmission shaft 2 can be rotatably installed on the wall with its own axis as the axis.

[0072] It is worth noting that, in this embodiment, the auxiliary power transmission mechanism can be set to multiple to control multiple auxiliary valves 21. For multiple auxiliary power transmission mechanisms, the corresponding second operating members 62 are arranged on the main transmission shaft 1 in a circular pattern with the axis of the main transmission shaft 1 as the center, and the threaded rods 64 on each second operating body are controlled to achieve remote control of each auxiliary valve 21. Moreover, for the driving mechanism, it can be set to an operating hand wheel 110 installed at the left end of the main transmission shaft 1. Of course, this driving mechanism can also be set to be electrically driven under appropriate circumstances.

[0073] In addition, in this embodiment, the axis of the secondary transmission shaft 2 is arranged parallel to the axis of the main transmission shaft 1. This arrangement is mainly considered to be more common and can meet most usage scenarios. Of course, in special cases, the two can also be arranged in parallel. When transmitting power between the main transmission shaft 1 and the secondary transmission shaft 2, a corresponding power transmission mechanism can be added, such as transmission through a cross universal shaft and gear meshing.

[0074] The valve remote transmission device in this embodiment, through the first key connection mechanism 4 and the operating mechanism 6, can realize the independent transmission of the main power transmission structure to the main valve 12, and drive the auxiliary power transmission mechanism to simultaneously transmit the auxiliary valve 21, thereby achieving the effect of one machine dual control with a relatively simple structure. Moreover, the overall structure of the present invention is simple and ingenious in design, easy to manufacture and low in cost, and has strong practicality.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A valve remote transmission device, characterized in that: include: A main power transmission mechanism comprises a main transmission shaft (1) passing through a carrier (3), and a driving mechanism and a main valve (12) connected to the main transmission shaft (1) and arranged on both sides of the carrier (3), wherein the driving mechanism is used to drive the main transmission shaft (1) to rotate, thereby constituting the opening and closing of the main valve (12); The auxiliary power transmission mechanism comprises an auxiliary transmission shaft (2) which is connected to a transmission wheel (14) sleeved on the main transmission shaft (1), and an auxiliary valve (21) which is arranged on the same side as the main valve (12) is connected to one end of the auxiliary transmission shaft (2), and the auxiliary transmission shaft (2) rotates due to the rotation of the transmission wheel (14) driven by the main transmission shaft (1), so as to open and close the auxiliary valve (21); The first key connection mechanism (4) comprises a first sliding key (41) provided on the main transmission shaft (1) and slidingly arranged along the axial direction of the main transmission shaft (1), and a first key groove (42) provided on the transmission wheel (14) for the first sliding key (41) to slide in or out; an operating mechanism (6), comprising a first operating member (61) which is inserted through the main transmission shaft (1) and connected to the first sliding key (41) at one end, the other end of the first operating member (61) extending out of the carrier (3) and located on the same side as the driving mechanism; In response to external operation, the first operating member (61) drives the first sliding key (41) to slide into or out of the first key slot (42) 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 the synchronous opening and closing of the main valve (12) and the auxiliary valve (21).

2. The valve remote transmission device according to claim 1, characterized in that: The main power transmission mechanism also includes 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 carrier (3), and the connecting shaft assembly (13) and the main transmission shaft (1) are connected via a second key connection mechanism (5).

3. The valve remote transmission device according to claim 2, characterized in that: The second key connection mechanism (5) comprises a second sliding key (51) provided on the main transmission shaft (1) and slidingly arranged along the axial direction of the main transmission 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.

4. The valve remote transmission device according to claim 3, characterized in that: 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); the second operating member (62) has one end connected to the second sliding key (51) and the other end extending out of the carrier (3).

5. The valve remote transmission device according to claim 4, characterized in that: A threaded rod (64) capable of being threadedly connected to the transmission shaft is provided on the other end of the first operating member (61) and / or the second operating member (62).

6. The valve remote transmission device according to claim 4, characterized in that: The first operating member (61) is sleeved with an elastic member (63) located between the first sliding key (41) and the first key slot (42); and / or, The second operating member (62) is sleeved with an elastic member (63) located between the second sliding key (51) and the second key slot (52).

7. The valve remote transmission device according to claim 1, characterized in that: The secondary transmission shaft (2) is provided with a driven wheel (22), and the driven wheel (22) is connected to the transmission wheel (14) via a transmission chain (23).

8. The valve remote transmission device according to claim 7, characterized in that: The main transmission shaft (1) is provided with a first positioning assembly (15) for positioning and installing the transmission wheel (14); and / or, The secondary transmission shaft (2) is provided with a second positioning assembly (24) for positioning and installing the driven wheel (22).

9. The valve remote transmission device according to any one of claims 1 to 8, characterized in that: The main transmission shaft (1) is arranged on the carrier (3) through a wall-penetrating tube assembly (16); and / or, The auxiliary transmission shaft (2) is arranged on the carrier (3) via a support assembly (25).

10. The valve remote transmission device according to any one of claims 1 to 8, characterized in that: The driving mechanism comprises an operating hand wheel (110) connected to the main transmission shaft (1); and / or, The axis of the secondary transmission shaft (2) is arranged in parallel with the axis of the main transmission shaft (1).

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