Underwater valve operating device

Abstract

The invention belongs to the technical field of underwater valves, and particularly relates to an underwater valve operating device which comprises a box body, an operating rod, a connecting part, an indicating part and a transmission part, and the connecting part is arranged between the operating rod and an opening and closing piece so that the operating rod and the opening and closing piece can rotate synchronously; the transmission part is arranged between the operating rod and the indication part in a transmission mode, so that when the underwater valve is in a closed state, the indication part is in a first indication state, and when the underwater valve is in an open state, the indication part is in a second indication state. In the rotating process of the operating rod, under the action of the connecting part, the operating rod can synchronously rotate with the opening and closing piece, under the action of the transmission part, the indicating state of the indicating part can be switched according to the state of the underwater valve, and the length of the connecting part can be adjusted according to the underwater valves with different operation requirements. And the positions of the transmission part and the indication part do not need to be adjusted, so that the state of the underwater valve can be accurately indicated.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater valves, and in particular to an underwater valve operating device. Background Art

[0002] Subsea valves are a general term for all valves used in underwater pipelines, and are mainly used in underwater manifolds, pipelines and terminals of offshore oil and gas projects. These valves work in deep and ultra-deep water conditions, with a service life of more than 20 years, and have strict requirements on quality, performance and reliability.

[0003] In practical applications, the underwater valve includes a valve body and an opening and closing member, which is rotatably arranged inside the valve body so that the underwater valve has a closed state and an open state. In order to facilitate the operation of multiple underwater valves in different positions, the operating device connected to the underwater valve transmission is often integrated into the same operating platform. In addition, in order to facilitate accurate identification of the state of the underwater valve, a highlighted position indication structure is also required on the operating device.

[0004] The existing position indicating structure includes a gear structure, an indicating rod and an indicating needle. The gear structure is arranged inside the underwater valve, and the transmission is arranged between the opening and closing part and the indicating rod, and is connected to the indicating rod in transmission so that the opening and closing part and the indicating rod rotate synchronously. The end of the indicating rod away from the underwater valve can extend to the operating platform, and the indicating needle is arranged at this end to facilitate the identification of the state of the opening and closing part.

[0005] Since different underwater valves are located at different positions and have different distances from the operating platform, it is often necessary to extend the operating device. Correspondingly, the length of the indicator rod also needs to be extended. However, as the length of the indicator rod increases, the center of gravity of the indicator rod also increases accordingly, which can easily cause the indicator rod to become unstable, thereby increasing the resistance of the indicator needle during rotation, and even causing jamming, which can easily lead to inaccurate indication of the status of the underwater valve.

[0006] Therefore, the above problems need to be solved urgently. Summary of the invention

[0007] The object of the present invention is to provide an underwater valve operating device so as to accurately indicate the state of the underwater valve.

[0008] To achieve this object, the present invention adopts the following technical solutions:

[0009] An underwater valve operating device is used to operate an underwater valve, the underwater valve comprising a valve body and an opening and closing member, the opening and closing member is rotatably arranged inside the valve body so that the underwater valve has a closed state and an open state, the underwater valve operating device comprising:

[0010] Box;

[0011] An operating lever, rotatably disposed on the box body;

[0012] A connecting portion, disposed between the operating rod and the opening and closing member, so that the operating rod and the opening and closing member rotate synchronously;

[0013] An indication part having a first indication state and a second indication state;

[0014] The transmission part is arranged inside the box body and is transmission-arranged between the operating rod and the indicating part, so that when the underwater valve is in the closed state, the indicating part is in the first indicating state, and when the underwater valve is in the open state, the indicating part is in the second indicating state.

[0015] Preferably, the indicating part includes an indicating block, a first mark and a second mark, the first mark and the second mark are respectively arranged on different side walls of the indicating block, the indicating block is arranged at the output end of the transmission part, and the transmission part is configured to drive the indicating block to rotate so that the indicating part switches between the first indicating state and the second indicating state.

[0016] Preferably, the transmission part comprises:

[0017] A worm, sleeved on the operating rod, and the operating rod rotates synchronously with the worm;

[0018] a worm wheel meshing with the worm;

[0019] A transmission shaft is rotatably arranged on the box body, and the transmission shaft rotates synchronously with the worm gear, and the indicating block is fixedly arranged on the transmission shaft.

[0020] Preferably, a step surface and a clamping member are provided on the transmission shaft, and the indicating portion is clamped between the step surface and the clamping member.

[0021] Preferably, the indicating portion is sleeved on the transmission shaft, and a region where the transmission shaft and the indicating portion overlap has a non-circular cross-section, so as to prevent the indicating portion from rotating relative to the transmission shaft.

[0022] Preferably, the box body has a first installation cavity and a second installation cavity, and the first installation cavity and the second installation cavity are communicated with each other, the operating rod is rotatably arranged in the first installation cavity through a fixing sleeve, and the transmission shaft is rotatably arranged in the second installation cavity through a bearing;

[0023] A first thrust pad is arranged between the worm and the first mounting cavity, and a second thrust pad is arranged between the transmission shaft and the second mounting cavity.

[0024] Preferably, the connecting portion comprises an extension sleeve and an extension rod, the extension sleeve is arranged between the valve body and the box body, the extension rod is arranged inside the extension sleeve, and both ends of the extension rod are respectively connected to the opening and closing member and the operating rod.

[0025] Preferably, the underwater valve further comprises a first interface, the first interface is arranged on the valve body, and the two ends of the extension sleeve are respectively detachably connected to the first interface and the box body.

[0026] Preferably, the extension rod includes a first rod body and a second rod body, the first rod body is rotatably connected to the first interface, one end of the first rod body is connected to the opening and closing member, and the other end is connected to the second rod body, and the end of the second rod body facing away from the first rod body is connected to the operating rod.

[0027] Preferably, the underwater valve operating device further comprises a second interface provided on the housing, and the second interface has a connecting cavity, and an end of the operating rod away from the underwater valve passes through the housing and extends to the connecting cavity.

[0028] Beneficial effects of the present invention:

[0029] In the underwater valve operating device of the present invention, the operating rod is rotatably arranged in the box body. During the rotation of the operating rod, under the action of the connecting part, it can rotate synchronously with the opening and closing member, and under the action of the transmission part, it can switch the indication state of the indicating part according to the state of the underwater valve. When the length of the connecting part is adjusted according to the underwater valve with different operating requirements, the position of the transmission part and the indicating part does not need to be adjusted accordingly, thereby improving the accurate indication of the state of the underwater valve. Compared with the position indicating structure in the prior art, the operating device proposed in this embodiment does not need to set a transmission structure inside the underwater valve, thereby reducing the installation space of the underwater valve, and further improving the applicability of the underwater valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of an underwater valve operating device in an embodiment of the present invention;

[0031] Figure 2 for Figure 1 Sectional view of the AA section line;

[0032] Figure 3 for Figure 1 A partial enlarged view of the middle part;

[0033] Figure 4 for Figure 1 Sectional view of the middle BB section line;

[0034] Figure 5for Figure 1 The view of the indicator block observed in the middle M direction;

[0035] Figure 6 for Figure 1 The view of the indicated block is viewed in the N direction.

[0036] In the figure:

[0037] 100. Underwater valves;

[0038] 1. Box; 2. Operating lever;

[0039] 3. Connecting part; 31. Extension sleeve; 32. Extension rod; 321. First rod body; 322. Second rod body;

[0040] 4. Indicator; 41. Indicator block; 42. First mark; 43. Second mark;

[0041] 5. Transmission part; 51. Worm; 52. Worm wheel; 53. Transmission shaft; 54. Clamping member;

[0042] 6. First thrust pad; 7. Second thrust pad; 8. First interface; 9. Second interface; 10. Fixed sleeve; 11. Bearing; 12. Sealing ring; 13. Guide belt; 14. Flange; 15. Retaining ring. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0044] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0047] The underwater valve includes a valve body and an opening and closing member, which is rotatably arranged inside the valve body so that the underwater valve has a closed state and an open state. In order to facilitate the operation of underwater valves in multiple different positions, the position indication structure of the existing operating device cannot accurately indicate the state of the underwater valve. For this reason, an underwater valve operating device is proposed in this embodiment. According to the underwater valves with different position operation requirements, the position of the indicating structure does not need to be adjusted, thereby facilitating accurate indication of the state of the underwater valve.

[0048] Specifically, see Figures 1 to 6 The operating device includes a box body 1, an operating rod 2, a connecting part 3, an indicating part 4 and a transmission part 5; the operating rod 2 is rotatably arranged in the box body 1; the connecting part 3 is arranged between the operating rod 2 and the opening and closing part, so that the operating rod 2 and the opening and closing part rotate synchronously; the indicating part 4 has a first indicating state and a second indicating state; the transmission part 5 is transmission-arranged between the operating rod 2 and the indicating part 4, so that when the underwater valve is in a closed state, the indicating part 4 is in the first indicating state, such as the indication of a highlighted mark "S", and when the underwater valve is in an open state, the indicating part 4 is in the second indicating state, such as the indication of a highlighted mark "O".

[0049] It can be understood that the operating rod 2 is rotatably arranged on the box body 1. During the rotation of the operating rod 2, under the action of the connecting part 3, it can rotate synchronously with the opening and closing member, and under the action of the transmission part 5, it can switch the indication state of the indicating part 4 according to the state of the underwater valve. When the connecting part 3 adjusts the length of the underwater valve 100 according to different operating requirements, the position of the transmission part 5 and the indicating part 4 does not need to be adjusted accordingly, thereby improving the accurate indication of the state of the underwater valve 100. Compared with the position indicating structure in the prior art, the operating device proposed in this embodiment does not need to set a transmission structure inside the underwater valve 100, thereby reducing the installation space of the underwater valve 100, and further improving the applicability of the underwater valve 100.

[0050] In this embodiment, please refer to Figure 5 and Figure 6 , the indicating part 4 includes an indicating block 41, a first mark 42 and a second mark 43, the first mark 42 and the second mark 43 are respectively arranged on different side walls of the indicating block 41, the indicating block 41 is arranged at the output end of the transmission part 5, and the transmission part 5 is configured to drive the indicating block 41 to rotate, so that the indicating part 4 switches between the first indicating state and the second indicating state. It can be understood that during the rotation process, the operating rod 2 can drive the indicating block 41 to rotate under the action of the transmission part 5, so that the indicating part 4 can switch between the first indicating state and the second indicating state. Compared with the prior art that uses a pointer to indicate the working state of the underwater valve, the weight of the indicating block 41 is much greater than the weight of the pointer, so that the stability of the indicating block 41 during the rotation process can be ensured, and the state of the underwater valve 100 can be further accurately indicated.

[0051] In actual application, the setting indicating part 4 is arranged above the underwater valve 100, and the first mark 42 and the second mark 43 are respectively arranged on different side walls of the indicating block 41. When the indicating block 41 is rotating, the first mark 42 and the second mark 43 can be set upward in sequence. When the first mark 42 is set upward, the underwater valve is in a closed state, and when the second mark 43 is set upward, the underwater valve is in an open state.

[0052] In some other feasible embodiments, according to actual needs, the underwater valve also has other working states. Correspondingly, the indicator block 41 is also provided with a third mark, a fourth mark, etc. corresponding thereto. When the indicator block 41 is rotating, all the marks can be set upward in sequence to indicate the corresponding working state of the underwater valve. Therefore, according to actual needs, the shape of the indicator block 41 needs to be adjusted, which will not be elaborated here.

[0053] Preferably, the transmission part 5 includes a worm 51, a worm wheel 52 and a transmission shaft 53, the worm 51 is sleeved on the operating rod 2, and the operating rod 2 rotates synchronously with the worm 51; the worm wheel 52 is meshed with the worm 51; the transmission shaft 53 is rotatably arranged on the box body 1, and the transmission shaft 53 rotates synchronously with the worm wheel 52, and the indicating block 41 is fixedly arranged on the transmission shaft 53. It can be understood that during the synchronous rotation of the operating rod 2 and the opening and closing member, the worm 51 can be driven to rotate synchronously, thereby driving the worm wheel 52 and the transmission shaft 53 to rotate synchronously, and then the indicating part 4 can be switched between the first indicating state and the second indicating state.

[0054] The worm 51 and the operating rod 2 , and the worm wheel 52 and the transmission shaft 53 are connected via connecting keys to ensure synchronous rotation of the worm 51 and the operating rod 2 , and synchronous rotation of the worm wheel 52 and the transmission shaft 53 .

[0055] It should be noted that by adjusting the transmission ratio between the worm wheel 52 and the worm 51, the rotation state of the indicator block 41 can be adjusted, thereby improving the applicability of the operating device. Of course, in some other feasible embodiments, the transmission part 5 can be other existing transmission structures, which will not be described in detail here.

[0056] Furthermore, a step surface and a clamping member 54 are provided on the transmission shaft 53, and the indicating portion 4 is clamped between the step surface and the clamping member 54. It can be understood that when the indicating block 41 is installed, the indicating block 41 is abutted against the step surface, and then the indicating block 41 is clamped by the clamping member 54, so that the transmission shaft 53 and the indicating block 41 can be prevented from falling off.

[0057] Exemplarily, the clamping member 54 includes a clamping plate and a limit screw. The clamping plate is arranged at the end of the transmission shaft 53. The indicator block 41 is clamped between the clamping plate and the limit screw. The limit screw passes through the clamping plate and can be screwed to the transmission shaft 53 to keep the clamping plate in a clamping state for the indicator block 41. Such a configuration facilitates the replacement and maintenance of the clamping block.

[0058] In addition, a retaining ring 15 is provided between the step surface and the indicator block 41 . This arrangement can avoid severe wear between the indicator block 41 and the step surface, thereby further improving the service life of the transmission shaft 53 .

[0059] In particular, the indicator 4 is sleeved on the transmission shaft 53, and the area where the transmission shaft 53 and the indicator 4 overlap has a non-circular cross-section, which is used to prevent the indicator 4 from rotating relative to the transmission shaft 53. This arrangement can avoid the transmission shaft 53 from having a speed difference with the indicator 4 during the rotation process, thereby ensuring that the transmission shaft 53 and the indicator block 41 rotate synchronously, so as to further ensure accurate indication of the state of the underwater valve 100.

[0060] Exemplarily, in the region where the transmission shaft 53 overlaps with the indicating portion 4 , the cross section of the transmission shaft 53 is elliptical or polygonal.

[0061] In this embodiment, the housing 1 has a first installation cavity and a second installation cavity, and the first installation cavity and the second installation cavity are connected to each other, the operating rod 2 is rotatably disposed in the first installation cavity through a fixing sleeve 10, and the transmission shaft 53 is rotatably disposed in the second installation cavity through a bearing 11. The setting of the fixing sleeve 10 allows the operating rod 2 to rotate while also fixing the operating rod 2 at a specific position to ensure the sealing of the underwater valve 100.

[0062] In addition, a first thrust pad 6 is provided between the worm 51 and the first mounting cavity, so as to effectively bear and disperse the axial load of the worm 51, thereby helping to ensure the stability of the worm 51 during rotation. Moreover, the provision of the first thrust pad 6 can also reduce the friction between the worm 51 and the first mounting cavity, so as to further improve the service life of the worm 51.

[0063] Similarly, a second thrust pad 7 is provided between the end of the transmission shaft 53 and the side wall of the second mounting cavity, so as to effectively bear and disperse the axial load of the transmission shaft 53, thereby helping to ensure the stability of the transmission shaft 53 during rotation. In addition, the provision of the second thrust pad 7 can also reduce the friction between the transmission shaft 53 and the second mounting cavity, so as to further improve the service life of the transmission shaft 53.

[0064] Furthermore, a plurality of sealing rings 12 and / or a plurality of guide belts 13 are provided between the operating rod 2 and the fixed sleeve 10, and between the transmission shaft 53 and the second mounting cavity. The provision of the guide belts 13 can increase the stability of the operating rod 2 and the transmission shaft 53 during rotation. The provision of the sealing rings 12 can prevent seawater from entering the interior of the casing 1, thereby preventing seawater from corroding the worm wheel 52 and the worm 51, so as to further ensure the service life of the operating device.

[0065] Furthermore, the underwater valve operating device further includes a second interface 9, which is disposed on the box body 1, and the second interface 9 has a connecting cavity, and the end of the operating rod 2 away from the underwater valve 100 passes through the box body 1 and extends to the connecting cavity. The provision of the second interface 9 can ensure the sealing of the interior of the box body 1, and also facilitate the staff or underwater robot to operate the underwater valve 100.

[0066] In this embodiment, the connection part 3 includes an extension sleeve 31 and an extension rod 32. The extension sleeve 31 is arranged between the valve body and the box body 1, and the extension rod 32 is arranged inside the extension sleeve 31. The two ends of the extension rod 32 are respectively connected to the opening and closing member and the operating rod 2. It can be understood that the lengths of the extension sleeve 31 and the extension rod 32 are adjusted according to the installation position of different underwater valves 100. The setting of the extension rod 32 can make the operating rod 2 and the opening and closing member rotate synchronously. The setting of the extension sleeve 31 can prevent the extension rod 32 from being corroded by seawater, thereby increasing the service life of the operating device.

[0067] Furthermore, the underwater valve 100 further includes a first interface 8, which is provided on the valve body, and the two ends of the extension sleeve 31 are detachably connected to the first interface 8 and the box body 1. It can be understood that the provision of the first interface 8 can ensure the sealing between the extension sleeve 31 and the valve body, thereby preventing seawater from entering the valve body or the extension sleeve 31, so as to further improve the service life of the operating device.

[0068] Exemplarily, both ends of the extension sleeve 31 are respectively connected to the box body 1 and the first interface 8 through flanges 14 to facilitate installation and maintenance of the extension sleeve 31 .

[0069] Further, the extension rod 32 includes a first rod body 321 and a second rod body 322, the first rod body 321 is rotatably connected to the first interface 8, one end of the first rod body 321 is connected to the opening and closing member, and the other end is connected to the second rod body 322, and the end of the second rod body 322 away from the first rod body 321 is connected to the operating rod 2. In practical applications, the first rod body 321 is connected to the opening and closing member, and the second rod body 322 and the extension sleeve 31 of appropriate length are selected according to the installation position of the underwater valve 100. In this way, the installation efficiency of the single connection part 3 can be improved.

[0070] Preferably, a square protrusion is provided at the end of the first rod body 321, and a square groove is provided at the end of the second rod body 322. The square protrusion is adapted to the direction groove. Such a configuration facilitates the positioning between the first rod body 321 and the second rod body 322, and can also ensure the synchronous rotation between the first rod body 321 and the second rod body 322.

[0071] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An underwater valve operating device for operating an underwater valve (100), wherein the underwater valve (100) comprises a valve body and an opening and closing member, wherein the opening and closing member is rotatably arranged inside the valve body so that the underwater valve (100) has a closed state and an open state, wherein: The underwater valve operating device comprises: Box body (1); An operating rod (2) rotatably disposed on the box body (1); A connecting portion (3) is arranged between the operating rod (2) and the opening and closing member so that the operating rod (2) and the opening and closing member rotate synchronously; An indication part (4) having a first indication state and a second indication state; The transmission part (5) is arranged inside the box (1) and is transmission-arranged between the operating rod (2) and the indicating part (4), so that when the underwater valve (100) is in the closed state, the indicating part (4) is in a first indicating state, and when the underwater valve (100) is in the open state, the indicating part (4) is in a second indicating state.

2. The underwater valve operating device according to claim 1, characterized in that: The indicating portion (4) comprises an indicating block (41), a first mark (42) and a second mark (43); the first mark (42) and the second mark (43) are respectively arranged on different side walls of the indicating block (41); the indicating block (41) is arranged at an output end of the transmission portion (5); the transmission portion (5) is configured to drive the indicating block (41) to rotate, so that the indicating portion (4) switches between the first indicating state and the second indicating state.

3. The underwater valve operating device according to claim 2, characterized in that: The transmission part (5) comprises: A worm (51) is sleeved on the operating rod (2), and the operating rod (2) and the worm (51) rotate synchronously; A worm wheel (52) meshing with the worm (51); A transmission shaft (53) is rotatably disposed on the box body (1), and the transmission shaft (53) rotates synchronously with the worm gear (52), and the indicating block (41) is fixedly disposed on the transmission shaft (53).

4. The underwater valve operating device according to claim 3, characterized in that: The transmission shaft (53) is provided with a step surface and a clamping member (54), and the indicating portion (4) is clamped between the step surface and the clamping member (54).

5. The underwater valve operating device according to claim 3, characterized in that: The indicating portion (4) is sleeved on the transmission shaft (53), and the overlapping area of ​​the transmission shaft (53) and the indicating portion (4) has a non-circular cross-section, which is used to prevent the indicating portion (4) from rotating relative to the transmission shaft (53).

6. The underwater valve operating device according to claim 3, characterized in that: The housing (1) has a first installation cavity and a second installation cavity, and the first installation cavity and the second installation cavity are connected to each other. The operating rod (2) is rotatably arranged in the first installation cavity through a fixing sleeve (10), and the transmission shaft (53) is rotatably arranged in the second installation cavity through a bearing (11); A first thrust pad (6) is provided between the worm (51) and the first mounting cavity, and a second thrust pad (7) is provided between the transmission shaft (53) and the second mounting cavity.

7. The underwater valve operating device according to claim 1, characterized in that: The connecting portion (3) comprises an extension sleeve (31) and an extension rod (32); the extension sleeve (31) is arranged between the valve body and the box body (1); the extension rod (32) is arranged inside the extension sleeve (31); and the two ends of the extension rod (32) are respectively connected to the opening and closing member and the operating rod (2).

8. The underwater valve operating device according to claim 7, characterized in that: The underwater valve (100) further comprises a first interface (8), wherein the first interface (8) is arranged on the valve body, and the two ends of the extension sleeve (31) are respectively detachably connected to the first interface (8) and the box body (1).

9. The underwater valve operating device according to claim 8, characterized in that: The extension rod (32) comprises a first rod body (321) and a second rod body (322); the first rod body (321) is rotatably connected to the first interface (8); one end of the first rod body (321) is connected to the opening and closing member, and the other end is connected to the second rod body (322); and one end of the second rod body (322) facing away from the first rod body (321) is connected to the operating rod (2).

10. The underwater valve operating device according to claim 1, characterized in that: The underwater valve operating device further comprises a second interface (9) arranged on the box body (1), and the second interface (9) has a connecting cavity, and an end of the operating rod (2) facing away from the underwater valve (100) passes through the box body (1) and extends to the connecting cavity.

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