Underwater valve operating device

Abstract

The utility model 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 utility model relates to underwater valve technical field especially relates to a kind of underwater valve operating device. BACKGROUND

[0002] ‌Underwater valve‌ is the collective term for all valves applied to underwater pipelines, mainly applied to underwater manifold, transmission pipeline and its terminal of offshore oil and gas engineering. These valves work in deep water 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 application, underwater valve includes valve body and opening and closing element, and the opening and closing element is rotatably arranged in the interior of 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 at different positions, the operating device connected with the underwater valve is often integrated on the same operation platform. In addition, in order to accurately identify the state of the underwater valve, a high-brightness position indicating structure is also needed 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 in the interior of the underwater valve, and is drivingly arranged between the opening and closing element and the indicating rod, and is drivingly connected with the indicating rod, so that the opening and closing element and the indicating rod rotate synchronously. The end of the indicating rod away from the underwater valve can extend to the operation platform, and the indicating needle is arranged at the end to facilitate identification of the state of the opening and closing element.

[0005] Since the positions of different underwater valves are different, the distances between the operating platform and the underwater valves are also different. Therefore, the operating device often needs to be extended, and the length of the indicating rod also needs to be correspondingly extended. However, as the length of the indicating rod increases, the center of gravity of the indicating rod also increases, which can easily cause instability of the indicating rod, thereby increasing the resistance during rotation of the indicating needle, and even causing jamming phenomenon, which can further cause inaccurate indication of the state of the underwater valve.

[0006] Therefore, the above problems need to be solved. INVENTION CONTENTS

[0007] The utility model aims at providing an underwater valve operating device to accurately indicate the state of the underwater valve.

[0008] To achieve this purpose, the utility model adopts the following technical solutions:

[0009] An underwater valve operating device is used to operate an underwater valve. The underwater valve includes a valve body and an opening and closing element, and the opening and closing element is rotatably arranged in the interior of the valve body, so that the underwater valve has a closed state and an open state. The underwater valve operating device comprises:

[0010] a box body;

[0011] an operation rod rotatably arranged in the box body;

[0012] a connecting part arranged between the operation rod and the opening and closing member to synchronize rotation of the operation rod and the opening and closing member;

[0013] an indicating part having a first indicating state and a second indicating state;

[0014] a transmission part arranged inside the box body and arranged between the operation rod and the indicating part to synchronize rotation of the underwater valve and the indicating part, wherein 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 comprises an indicating block, a first mark and a second mark, the first mark and the second mark are arranged on different side walls of the indicating block, the indicating block is arranged at an output end of the transmission part, and the transmission part is configured to drive the indicating block to rotate to switch the indicating part between the first indicating state and the second indicating state.

[0016] Preferably, the transmission part comprises:

[0017] a worm arranged around the operation rod and synchronized with the operation rod;

[0018] a worm gear engaged with the worm;

[0019] a transmission shaft rotatably arranged in the box body and synchronized with the worm gear, and the indicating block is fixedly arranged on the transmission shaft.

[0020] Preferably, the transmission shaft is provided with a stepped surface and a clamping part, and the indicating part is clamped between the stepped surface and the clamping part.

[0021] Preferably, the indicating part is arranged around the transmission shaft, and a region where the transmission shaft and the indicating part coincide has a non-circular cross section to prevent rotation of the indicating part relative to the transmission shaft.

[0022] Preferably, the box body has a first mounting cavity and a second mounting cavity, the first mounting cavity and the second mounting cavity are in communication with each other, the operation rod is rotatably arranged in the first mounting cavity through a fixing sleeve, and the transmission shaft is rotatably arranged in the second mounting 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] As preferred, the connecting part comprises an extension sleeve and an extension rod, the extension sleeve is arranged between the valve body and the box, the extension rod is arranged inside the extension sleeve, and two ends of the extension rod are connected with the opening and closing member and the operating rod respectively.

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

[0026] As preferred, the extension rod comprises a first rod body and a second rod body, the first rod body is rotationally connected with the first interface, one end of the first rod body is connected with the opening and closing member, the other end is connected with the second rod body, and one end of the second rod body away from the first rod body is connected with the operating rod.

[0027] As preferred, the underwater valve operating device further comprises a second interface arranged on the box, and the second interface has a connecting cavity, and one end of the operating rod away from the underwater valve penetrates through the box and extends to the connecting cavity.

[0028] The beneficial effects of the utility model are as follows:

[0029] The underwater valve operating device of the utility model, the operating rod is rotationally arranged on the box, in the rotation process of the operating rod, under the action of the connecting part, the opening and closing member can be synchronously rotated, and under the action of the transmission part, the indication state of the indication part can be switched according to the state of the underwater valve, when the length of the connecting part is adjusted according to the underwater valve with different operation requirements, the positions of the transmission part and the indication part do not need to be adjusted, thereby the state of the underwater valve can be accurately indicated. Compared with the position indication structure in the prior art, the operating device in the embodiment does not need to arrange a transmission structure in the underwater valve, thereby the installation space of the underwater valve can be reduced, and the applicability of the underwater valve can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is the structure schematic view of the underwater valve operating device in the utility model embodiment;

[0031] Figure 2 is Figure 1 the sectional view of A-A cutting line in the utility model embodiment;

[0032] Figure 3 is Figure 1 the local enlarged view of A in the utility model embodiment;

[0033] Figure 4 is Figure 1 the sectional view of B-B cutting line in the utility model embodiment;

[0034] Figure 5 For Figure 1 view of the indicating block in the M direction;

[0035] Figure 6 For Figure 1 view of the indicating block in the N direction.

[0036] In the figure:

[0037] 100, underwater valve;

[0038] 1, box; 2, operating rod;

[0039] 3, connecting part; 31, extension sleeve; 32, extension rod; 321, first rod body; 322, second rod body;

[0040] 4, indicating part; 41, indicating block; 42, first mark; 43, second mark;

[0041] 5, transmission part; 51, worm; 52, worm gear; 53, transmission shaft; 54, clamping piece;

[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, check ring. DETAILED DESCRIPTION

[0043] The utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0044] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature "under", "below" and "under surface" of second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature.

[0046] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.

[0047] The underwater valve comprises a valve body and an opening and closing element, and the opening and closing element is rotationally arranged in the interior of the valve body, so that the underwater valve has a closed state and an open state. In order to facilitate the operation of the underwater valve in different positions, the position indicating structure of the existing operation device cannot accurately indicate the state of the underwater valve. Therefore, the underwater valve operation device is provided in the embodiment, which can accurately indicate the state of the underwater valve without adjusting the position of the indicating structure according to the operation requirement of the underwater valve in different positions.

[0048] Specifically, please refer to Figures 1 to 6 The operation device comprises 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 rotationally arranged in the box body 1. The connecting part 3 is arranged between the operating rod 2 and the opening and closing element, so that the operating rod 2 and the opening and closing element rotate synchronously. The indicating part 4 has a first indicating state and a second indicating state. The transmission part 5 is transmissionally arranged between the operating rod 2 and the indicating part 4, so that when the underwater valve is in the closed state, the indicating part 4 is in the first indicating state, such as the high-light mark "S", and when the underwater valve is in the open state, the indicating part 4 is in the second indicating state, such as the high-light mark "O".

[0049] It can be understood that the operating rod 2 is rotationally arranged on the box body 1, and in the rotation process of the operating rod 2, under the action of the connecting part 3, the operating rod 2 can rotate synchronously with the opening and closing part, and under the action of the transmission part 5, the indication part 4 can switch the indication state according to the state of the underwater valve. When the connecting part 3 adjusts the length of the underwater valve 100 according to different operation requirements, the positions of the transmission part 5 and the indication part 4 do not need to be adjusted, thereby improving the accurate indication of the state of the underwater valve 100. Compared with the position indication structure in the prior art, the operation device in the embodiment does not need to set a transmission structure in 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 the embodiment, please refer to Figure 5 and Figure 6 The indication part 4 includes an indication block 41, a first mark 42 and a second mark 43, the first mark 42 and the second mark 43 are arranged on different side walls of the indication block 41, the indication block 41 is arranged on the output end of the transmission part 5, and the transmission part 5 is configured to drive the indication block 41 to rotate, so as to switch the indication part 4 between the first indication state and the second indication state. It can be understood that in the rotation process of the operating rod 2, the indication block 41 can be driven to rotate under the action of the transmission part 5, so as to switch the indication part 4 between the first indication state and the second indication state. Compared with the pointer indicating the working state of the underwater valve in the prior art, the weight of the indication block 41 is much greater than that of the pointer, so as to ensure the stability of the indication block 41 in the rotation process, and further accurately indicate the state of the underwater valve 100.

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

[0052] In some other possible embodiments, according to actual needs, the underwater valve also has other working states, and correspondingly, the indication block 41 also has a third mark, a fourth mark and the like corresponding thereto, and in the rotation process of the indication block 41, all the marks can be sequentially arranged upward, so as to indicate the corresponding working state of the underwater valve. Therefore, according to actual needs, the shape of the indication block 41 needs to be adjusted, which is not described herein.

[0053] Preferably, the transmission part 5 comprises 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 engaged 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 in the synchronous rotation process of the operating rod 2 and the opening and closing piece, the worm 51 can be driven to rotate synchronously, so that the worm wheel 52 and the transmission shaft 53 can be driven to rotate synchronously, and the indicating part 4 can be switched between the first indicating state and the second indicating state.

[0054] Among them, the worm 51 and the operating rod 2, the worm wheel 52 and the transmission shaft 53 are connected through the connecting key, so as to ensure that the worm 51 and the operating rod 2 rotate synchronously, and the worm wheel 52 and the transmission shaft 53 rotate synchronously.

[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 indicating block 41 can be adjusted, thereby improving the applicability of the operation device. Of course, in some other feasible embodiments, the transmission part 5 can be other existing transmission structures, which will not be described here.

[0056] Further, the transmission shaft 53 is provided with a stepped surface and a clamping piece 54, and the indicating part 4 is clamped between the stepped surface and the clamping piece 54. It can be understood that when the indicating block 41 is installed, the indicating block 41 is abutted with the stepped surface, and then the indicating block 41 is clamped by the clamping piece 54, so that the transmission shaft 53 and the indicating block 41 are prevented from falling off.

[0057] Exemplarily, the clamping piece 54 comprises a clamping plate and a limiting screw, the clamping plate is arranged at the end of the transmission shaft 53, the indicating block 41 is clamped between the clamping plate and the limiting screw, and the limiting screw is screwed with the transmission shaft 53 after penetrating the clamping plate, so that the clamping plate remains in the clamping state of the indicating block 41. In this way, the clamping block can be replaced and maintained conveniently.

[0058] In addition, a retaining ring 15 is arranged between the stepped surface and the indicating block 41. In this way, the wear between the indicating block 41 and the stepped surface can be avoided, thereby further improving the service life of the transmission shaft 53.

[0059] In particular, the indicating part 4 is sleeved on the transmission shaft 53, and the region where the transmission shaft 53 coincides with the indicating part 4 has a non-circular cross section, which is used to prevent the indicating part 4 from rotating relative to the transmission shaft 53. In this way, the speed difference between the transmission shaft 53 and the indicating part 4 during rotation can be avoided, so that the transmission shaft 53 and the indicating block 41 can rotate synchronously, thereby further ensuring the accurate indication of the state of the underwater valve 100.

[0060] Exemplarily, the cross section of the transmission shaft 53 in the region coinciding with the indicating part 4 is oval or polygonal.

[0061] In this embodiment, the box 1 has a first mounting cavity and a second mounting cavity, and the first mounting cavity and the second mounting cavity are in communication with each other. The operating rod 2 is rotatably arranged in the first mounting cavity through the fixing sleeve 10, and the transmission shaft 53 is rotatably arranged in the second mounting cavity through the bearing 11. The arrangement of the fixing sleeve 10 allows the operating rod 2 to rotate while being fixed at a specific position, thereby ensuring the sealing of the underwater valve 100.

[0062] In addition, the first thrust pad 6 is arranged between the worm 51 and the first mounting cavity, thereby effectively bearing and dispersing the axial load of the worm 51, which helps to ensure the stability of the worm 51 during rotation. Moreover, the arrangement of the first thrust pad 6 can also reduce the friction between the worm 51 and the first mounting cavity, thereby further improving the service life of the worm 51.

[0063] Similarly, the second thrust pad 7 is arranged between the end of the transmission shaft 53 and the side wall of the second mounting cavity, thereby effectively bearing and dispersing the axial load of the transmission shaft 53, which helps to ensure the stability of the transmission shaft 53 during rotation. Moreover, the arrangement of the second thrust pad 7 can also reduce the friction between the transmission shaft 53 and the second mounting cavity, thereby further improving the service life of the transmission shaft 53.

[0064] Further, a plurality of sealing rings 12 and / or a plurality of guide belts 13 are arranged between the operating rod 2 and the fixing sleeve 10, and between the transmission shaft 53 and the second mounting cavity. The arrangement of the guide belts 13 can increase the stability of the operating rod 2 and the transmission shaft 53 during rotation, and the arrangement of the sealing rings 12 can prevent seawater from entering the interior of the box 1, thereby avoiding the corrosion of the worm gear 52 and the worm 51 by seawater, and further improving the service life of the operating device.

[0065] Still further, the underwater valve operating device further comprises a second interface 9 arranged on the box 1, and the second interface 9 has a connecting cavity. One end of the operating rod 2 away from the underwater valve 100 penetrates through the box 1 and extends into the connecting cavity. The arrangement of the second interface 9 can ensure the sealing of the interior of the box 1, and also facilitates the operation of the underwater valve 100 by the staff or underwater robots.

[0066] In the embodiment, the connecting part 3 comprises an extension sleeve 31 and an extension rod 32, the extension sleeve 31 is arranged between the valve body and the box 1, the extension rod 32 is arranged in the extension sleeve 31, and the two ends of the extension rod 32 are connected with the opening and closing member and the operating rod 2 respectively. It can be understood that, according to the installation position of the underwater valve 100, the length of the extension sleeve 31 and the extension rod 32 is adjusted, the arrangement of the extension rod 32 can make the operating rod 2 and the opening and closing member rotate synchronously, and the arrangement of the extension sleeve 31 can avoid the corrosion of seawater on the extension rod 32, thereby improving the service life of the operating device.

[0067] Further, the underwater valve 100 further comprises a first interface 8 arranged on the valve body, and the two ends of the extension sleeve 31 are detachably connected with the first interface 8 and the box 1. It can be understood that the arrangement of the first interface 8 can ensure the sealing between the extension sleeve 31 and the valve body, thereby avoiding the seawater from entering the inside of the valve body or the extension sleeve 31, so as to further improve the service life of the operating device.

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

[0069] Further, the extension rod 32 comprises a first rod body 321 and a second rod body 322, the first rod body 321 is rotationally connected with the first interface 8, one end of the first rod body 321 is connected with the opening and closing member, the other end is connected with the second rod body 322, and the end of the second rod body 322 away from the first rod body 321 is connected with the operating rod 2. In actual application, the first rod body 321 is connected with the opening and closing member, the second rod body 322 and the extension sleeve 31 with appropriate lengths are selected according to the installation position of the underwater valve 100, and in this way, the installation efficiency of the connecting part 3 can be improved.

[0070] Preferably, the end of the first rod body 321 is provided with a square protrusion, the end of the second rod body 322 is provided with a square groove, and the square protrusion is matched with the square groove, in this way, the positioning between the first rod body 321 and the second rod body 322 is facilitated, and the synchronous rotation between the first rod body 321 and the second rod body 322 is also ensured.

[0071] Obviously, the above embodiment of the utility model is only an example for clearly explaining the utility model, and is not a limitation on the implementation mode of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An underwater valve operating device for operating an underwater valve (100), the underwater valve (100) comprising a valve body and a valve closure member rotatably arranged inside the valve body to allow the underwater valve (100) to have a closed state and an open state, characterized in that, The underwater valve operating device comprises: a box (1); an operating rod (2) rotatably arranged in the box (1); a connecting part (3) 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; an indicating part (4) having a first indicating state and a second indicating state; a transmission part (5) arranged inside the box (1) and in transmission 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 the first indicating state, and when the underwater valve (100) is in the open state, the indicating part (4) is in the second indicating state.

2. The underwater valve operating device according to claim 1, characterized in that The indicating part (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 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.

3. The underwater valve operating device according to claim 2, characterized in that The transmission part (5) comprises: a worm (51) sleeved on the operating rod (2), and the operating rod (2) and the worm (51) rotate synchronously; a worm gear (52) engaged with the worm (51); a transmission shaft (53) rotatably arranged in the box (1), and the transmission shaft (53) and the worm gear (52) rotate synchronously, and the indicating block (41) is fixedly arranged 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 stepped surface and a clamping piece (54), and the indicating part (4) is clamped between the stepped surface and the clamping piece (54).

5. The underwater valve operator of claim 3, wherein, The indicating part (4) is sleeved on the transmission shaft (53), and the area where the transmission shaft (53) and the indicating part (4) coincide has a non-circular cross section, which is used to prevent the indicating part (4) from rotating relative to the transmission shaft (53).

6. The underwater valve operator of claim 3, wherein, The box (1) has a first mounting cavity and a second mounting cavity, and the first mounting cavity and the second mounting cavity are in communication with each other, the operating rod (2) is rotatably arranged in the first mounting cavity through a fixed sleeve (10), and the transmission shaft (53) is rotatably arranged in the second mounting cavity through a bearing (11); The first thrust pad (6) is arranged between the worm (51) and the first mounting cavity, and the second thrust pad (7) is arranged between the transmission shaft (53) and the second mounting cavity.

7. The underwater valve operator of claim 1, wherein, The connecting part (3) comprises an extension sleeve (31) and an extension rod (32), the extension sleeve (31) is arranged between the valve body and the box (1), the extension rod (32) is arranged inside the extension sleeve (31), and the two ends of the extension rod (32) are respectively connected with the opening and closing part and the operating rod (2).

8. The underwater valve operator of claim 7, wherein, The underwater valve (100) further comprises a first interface (8) arranged on the valve body, and two ends of the extension sleeve (31) are detachably connected with the first interface (8) and the box (1) respectively.

9. The underwater valve operator of claim 8, wherein, The extension rod (32) comprises a first rod body (321) and a second rod body (322), the first rod body (321) is rotationally connected with the first interface (8), one end of the first rod body (321) is connected with the opening and closing member, and the other end is connected with the second rod body (322), one end of the second rod body (322) away from the first rod body (321) is connected with the operating rod (2).

10. The underwater valve operator of claim 1, wherein, The underwater valve operating device further comprises a second interface (9) arranged on the box (1), and the second interface (9) has a connecting cavity, and one end of the operating rod (2) away from the underwater valve (100) penetrates through the box (1) and extends to the connecting cavity.

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