Translational lifting overhaul stand

Abstract

The invention discloses a translational lifting overhaul stand, which relates to the technical field of blowout preventer overhaul devices, and comprises at least two translational mechanism support assemblies arranged at intervals; the at least two cross arms are mounted on the translation mechanism supporting assemblies in a one-to-one correspondence manner; the overhaul stand assemblies are mounted at the tops of the cross arms in a one-to-one correspondence manner; a plurality of translation hasp units; the translation hasp unit is arranged between any two adjacent overhaul stand assemblies, one end of the translation hasp unit is movably mounted at the end part of one overhaul stand assembly, and the other end of the translation hasp unit is connected and matched with the end part of the other overhaul stand assembly; the blowout preventer overhaul stand solves the technical problems that the size of an existing blowout preventer overhaul stand cannot be adjusted, and applicability is poor.

Description

Technical Field

[0001] The invention relates to the technical field of blowout preventer maintenance devices, and in particular to a translational lifting maintenance platform. Background Art

[0002] The BOP maintenance platform is mainly used as a maintenance platform for repairing the BOP when the internal components of the BOP fail or are damaged during the drilling process.

[0003] There are many types of BOPs. Since the maximum installation height of a BOP is about 6m, in the past, on-site workers used escalators to climb up and repair the BOP after it was damaged (maximum height is about 6m). The escalator climbing operation takes up a lot of people, has low work efficiency and poses great safety hazards. Later, according to demand, some manufacturers designed a BOP maintenance platform, but this type of maintenance platform is usually just a fixed-size platform that cannot be adjusted in size, has poor versatility, and cannot meet maintenance requirements. Summary of the invention

[0004] The purpose of the present invention is to provide a translational lifting maintenance platform, which solves the technical problems of the blowout preventer maintenance platform in the prior art that the size cannot be adjusted and the applicability is poor.

[0005] The embodiment of the present application discloses a translational lifting maintenance platform, comprising: At least two translation mechanism support assemblies are arranged at intervals; At least two cross arms are mounted on the translation mechanism support assembly in a one-to-one correspondence; A plurality of inspection platform assemblies are mounted one by one on the top of the cross arm; A plurality of translation buckle units are provided between any two adjacent inspection platform components, one end of the translation buckle unit is movably mounted on the end of one of the inspection platform components, and the other end is matched with the end of another inspection platform component.

[0006] The present application is designed with a translational buckle unit, and after the spacing between the maintenance platform components is adjusted, locking is completed through the translational buckle unit, which facilitates maintenance by the staff and improves safety.

[0007] Based on the above technical solution, the embodiment of the present application can also be improved as follows: Furthermore, the translational buckle unit comprises: A first curved arm, one end of which is connected to the end of the inspection platform assembly through a pin; A pull rod, one end of which is movably connected to the other end of the first crank arm; A second curved arm, the top of which is movably connected to the other end of the pull rod, and the bottom of which is connected to the end of the inspection platform assembly through a pin shaft; a first long shaft mounted on the top of the second crank arm; At least two third curved arms are installed on the first long axis at intervals; At least two buckles are mounted on the ends of the third curved arm in a one-to-one correspondence; The buckle seat unit is installed on the floating platform base, and the buckle seat unit is connected to the buckle. The beneficial effect of adopting this step is that the buckle can be translated by the cooperation of multiple curved arms, thereby achieving locking.

[0008] Furthermore, the translational buckle unit also includes a pushing rod, and the pushing rod is connected to the first curved arm. The beneficial effect of adopting this step is that the pushing rod is convenient for the staff to operate.

[0009] Furthermore, the inspection platform assembly includes: Floating platform unit; A fence rod is installed around the floating platform unit; The floating platform unit comprises: Two floating platforms are arranged in parallel and at intervals; Two mobile floating platforms are movably installed on the floating platform seat in a one-to-one correspondence. One of the mobile floating platforms is installed with the translation buckle unit, and the other mobile floating platform is installed with a cross bar that cooperates with the translation buckle unit. The beneficial effect of adopting this step is that the mobile floating platform can realize the change of the size of the floating platform unit.

[0010] Furthermore, the floating platform unit also includes: A fixed rack is installed on the top of the floating platform, and the fixed rack extends along the length direction of the floating platform; The rack positioning member is installed on the movable floating platform, and the end of the rack positioning member cooperates with the fixed rack. The beneficial effect of adopting this step is that locking can be completed by the mutual cooperation between the rack positioning member and the fixed rack.

[0011] Furthermore, the rack positioning member comprises: A mating rack, one side of which is mated with the fixed rack; A movable block, one end of which is connected to the matching rack and the other end of which is mounted on the movable floating platform through a spring seat; The lifting pedal is hinged on the movable floating platform, and the end of the lifting pedal cooperates with the bottom of the movable block. The beneficial effect of adopting this step is that by lifting and stepping on the pedal, the height of the matching rack can be changed under the joint action of the spring force, thereby completing locking and disengagement.

[0012] Furthermore, the translation mechanism support assembly comprises: Support; A translation mechanism, one end of which is connected to the support; A base connected to the other end of the translation mechanism; The closed telescopic spiral legs are installed at one end of the base away from the support. The beneficial effect of this step is that the support and horizontal adjustment of the base are achieved through the closed telescopic spiral legs.

[0013] Furthermore, the translation mechanism comprises: An active frame, one end of which is hinged to the support, and the other end of which is hinged to the base; A translation hydraulic cylinder, one end of which is connected to the support, and the other end of which is connected to the active frame; A connecting frame, one end of which is connected to the support, and the other end of which is hinged to the base, and the connecting frame and the active frame are parallel to each other; The locking unit has one end connected to the support and the other end connected to the active frame. The beneficial effect of this step is to achieve locking through the locking unit to achieve the purpose of constraining the active frame.

[0014] Furthermore, the locking unit comprises: A telescopic rod, one end of which is connected to the support; A telescopic sleeve, one end of which is connected to the base and the other end of which is matched with the telescopic rod, and a telescopic joint is provided on the telescopic sleeve; The clamp assembly is installed on the telescopic sleeve. The beneficial effect of this step is that the telescopic sleeve and the clamp assembly cooperate with each other to achieve the locking of the telescopic sleeve.

[0015] Furthermore, the closed telescopic spiral leg comprises: Chassis; An inner square tube, mounted on the chassis; An outer square tube is sleeved on the inner square tube; A trapezoidal nut is installed inside the outer square tube, and the trapezoidal nut is located above the inner square tube; The trapezoidal screw is installed on the outer square tube and extends to the inside of the inner square tube. The trapezoidal screw cooperates with the trapezoidal nut. The beneficial effect of this step is that the corrosion resistance can be improved through the outer square tube.

[0016] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: 1. The present application designs the translation mechanism support assembly so that it can translate, thereby realizing the adjustment of the spacing between adjacent maintenance platform assemblies, which can adapt to different sizes of blowout preventer groups, thereby improving maintenance efficiency.

[0017] 2. The present application adopts a clamp-type locking mechanism, which can complete the locking of the telescopic sleeve, thereby completing the locking after the translation mechanism is adjusted, thereby ensuring stability.

[0018] 3. The present application designs the closed telescopic spiral legs to improve their corrosion resistance, thereby ensuring the service life of the present application.

[0019] 4. The present application is provided with a translation buckle unit with a small translation amplitude, which is suitable for operation in the space between the gate blowout preventers, thereby improving the scope of application of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a translational lifting maintenance platform according to a specific embodiment of the present invention; Figure 2 for Figure 1 Structural diagram of the middle support and translation mechanism; Figure 3 for Figure 1 A schematic diagram of the structure of the middle locking unit; Figure 4 for Figure 1 Schematic diagram of the structure of the closed telescopic spiral outrigger; Figure 5 for Figure 1 The structural diagram of the mid-floating platform unit; Figure 6 for Figure 1 A schematic diagram of the structure of the middle rack positioning part; Figure 7 for Figure 1 A schematic diagram of the structure of the intermediate translation buckle unit; Reference numerals: 1-translational mechanism support assembly; 2-cross arm; 3-inspection platform assembly; 4-floating platform unit; 5-translational buckle unit; 6-encircling rod; 7-cross rod; 101-support; 102-translation mechanism; 103-base; 104-enclosed telescopic spiral leg; 105-active frame; 106-translation hydraulic cylinder; 107-connecting frame; 108-locking unit; 109-telescopic rod; 110-telescopic sleeve; 111-expansion joint; 112-clamp assembly; 113-chassis; 114-inner square tube; 115-outer square tube; 116-trapezoidal nut; 117-trapezoidal screw; 401-floating platform seat; 402-movable floating platform; 403-fixed rack; 404-rack positioning piece; 405-matching rack; 406-movable block; 407-spring seat; 408-lifting pedal; 501 - first crank arm; 502 - pull rod; 503 - second crank arm; 504 - first long axis; 505 - third crank arm; 506 - buckle; 507 - buckle seat unit; 508 - push rod. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0024] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, or integrated, or hinged; it can be a mechanical connection; it can be directly connected, or indirectly connected 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.

[0025] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Example: like Figure 1-7 As shown, the embodiment of the present application discloses a translational lifting maintenance platform, which can adjust the size and the position of the maintenance platform to meet the operation requirements of different types of blowout preventer groups.

[0027] like Figure 1 As shown, the specific structure of this application includes: At least two translation mechanism support components 1 are arranged at intervals, and the translation mechanism support components 1 are position-adjustable components, specifically, they can achieve translation to complete position adjustment within a small range; At least two cross arms 2 are mounted on the translation mechanism support assembly 1 in a one-to-one correspondence. The cross arms 2 are telescopic parts, and a telescopic hydraulic cylinder is arranged inside the cross arms 2. The telescopic hydraulic cylinder is used to raise and lower the cross arms 2, and the vertical position can be adjusted, thereby adjusting the height position of the inspection platform. A plurality of inspection platform assemblies 3 are mounted one by one on the top of the cross arm 2, and the inspection platform assemblies 3 can move up and down with the movement of the cross arm 2; A plurality of translational buckle units 5 are provided between any two adjacent inspection platform components 3 , one end of the translational buckle unit 5 is movably mounted on the end of one of the inspection platform components 3 , and the other end is connected and matched with the end of another inspection platform component 3 .

[0028] The inspection platform assembly 3 in the present application moves up and down driven by the cross arm 2. After reaching the specified position, it pushes at both ends of the two corresponding floating platform units 4 so that the two corresponding floating platform units 4 are brought closer together. After adjusting to a certain position, they are locked by the translational buckle unit 5.

[0029] In actual work, the end of the translational buckle unit 5 used for cooperation is first lifted and pulled back by the push rod 508. After the adjustment of the distance between the two corresponding floating platform units 4 is completed, the push rod 508 is pushed forward and dropped to get stuck, thereby completing the connection between the two corresponding floating platform units 4.

[0030] When the translational buckle unit 5 is working, one end is hinged and the other end is snap-fitted. The floating platform unit 4 of one maintenance platform assembly 3 is hinged to the translational buckle unit 5, and the floating platform unit 4 of the other maintenance platform assembly 3 is provided with a cross bar for snap-fitting.

[0031] Specifically, Figure 7 As shown, the translation buckle unit 5 includes: The first crank arm 501 has one end connected to the end of the inspection platform assembly 3 through a pin, and the specific connection method is a shaft, so that it can swing around the pin; A pull rod 502, one end of which is movably connected to the other end of the first crank arm 501; The second crank arm 503 has a top that is movably connected to the other end of the pull rod 502, and a bottom that is connected to the end of the inspection platform assembly 3 through a pin shaft; that is, the first crank arm 501, the pull rod 502, and the second crank arm 503 cooperate with each other to form a translation mechanism similar to a parallelogram, that is, when one end of the pull rod 502 moves, the other end of the pull rod 502 can be driven to move; A first long shaft 504 is installed on the top of the second crank arm 503, and the first long shaft 504 can move with the rotation of the second crank arm 503; At least two third curved arms 505 are installed on the first long axis 504 at intervals, and the third curved arms 505 can move along with the first long axis 504; At least two buckles 506 are mounted on the ends of the third curved arm 505 in a one-to-one correspondence. The buckles 506 are provided with a plurality of grooves on the bottom side of the ends away from the third curved arm 505 so as to cooperate with the crossbar of the floating platform unit to form a snap-fit ​​structure. The buckle seat unit 507 is installed on the maintenance platform assembly 3, and the buckle seat unit 507 is connected to the buckle 506. The buckle seat unit 507 includes a hinge seat and a transverse axis. After the transverse axis passes through the buckle 506, it is connected to the hinge seat, so that the two buckles 506 can be driven to move at the same time, so that the clamping of the two corresponding floating platform units 4 can be better completed.

[0032] With respect to the movement form of the buckle seat unit 507, a groove is provided on the bottom side of the buckle 506, and a plurality of cross bars are provided on the inspection platform assembly cooperating with the end of the buckle seat unit 507, so that a snap connection can be formed, that is, after the spacing between the floating platform units 4 is adjusted, the snap connection can be achieved to ensure stability.

[0033] In order to facilitate the stable movement of the translation buckle unit 5, as Figure 7 As shown, the present application is further provided with a push rod 508, and the push rod 508 is specifically connected to the first curved arm 501, so that the buckle 506 can be driven to move only by the foot. This simplifies the movement process.

[0034] The maintenance platform assembly 3 in the present application includes a plurality of floating platform units 4, which are used to provide a standing function, so as to facilitate the subsequent stable work of relevant personnel. In order to further improve safety, the maintenance platform assembly 3 in the present application is also provided with guardrails 6, and the guardrails 6 are arranged at intervals on the sides of the floating platform units 4.

[0035] like Figure 5 As shown, the floating platform unit 4 in the present application can achieve length adjustment, and the specific structure includes: Two floating platforms 401 are arranged in parallel and spaced apart; The two mobile floating platforms 402 are movably installed on the floating platform seat 401 in a one-to-one correspondence, that is, the mobile floating platforms 402 are slidably installed on the floating platform seat 401. Specifically, sliding grooves are opened on both sides of the floating platform seat 401, and convex parts cooperating with the sliding grooves are provided on both sides of the mobile floating platform 402 to achieve sliding; in this way, the position of the mobile floating platform 402 can be adjusted.

[0036] The translational buckle unit 5 is installed on one of the mobile floating platforms 401 , and the cross bar 7 matched with the translational buckle unit 5 is installed on the other mobile floating platform 401 .

[0037] The mobile floating platform 402 in the present application is specifically locked by meshing of the rack. After the mobile floating platform 402 moves to the corresponding position, it is locked by meshing of the rack.

[0038] like Figure 5 As shown, the floating platform unit 4 also includes: A fixed rack 403 is installed on the top of the floating platform 401, and the fixed rack 403 extends along the length direction of the floating platform 401, and the fixed rack 403 is used to provide a movement track; The rack positioning member 404 is installed on the movable floating platform 402, and the end of the rack positioning member 404 cooperates with the fixed rack 403, that is, after the movable floating platform 402 moves to a certain position, the rack positioning member 404 cooperates and locks with the fixed rack 403.

[0039] Among them, the distribution of the fixed rack 403 and the rack positioning member 404 has the following situations: when a floating platform unit 4 includes a fixed rack 403 and a rack positioning member 404, the fixed racks 403 in the floating platform units 4 in the adjacent maintenance platform assemblies are diagonally distributed, thus forming a diagonal locking; when a floating platform unit 4 includes two fixed racks 403 and two rack positioning members 404, in this one-to-one correspondence, a fixed rack 403 is used to lock a mobile floating platform.

[0040] Specifically, Figure 6 As shown, the rack positioning member 404 includes: A mating rack 405, one side of which is mated with the fixed rack 403; A movable block 406, one end of which is connected to the matching rack 405, and the other end of which is mounted on the movable floating platform 402 through a spring seat 407; The lifting pedal 408 is hinged on the movable floating platform 402 , and the end of the lifting pedal 408 is matched with the bottom of the movable block 406 .

[0041] With respect to the rack positioning member 404, the mating rack 405 of the rack positioning member 404 is raised and disengaged from the fixed rack 403. At this time, the mobile floating platform 402 can move back and forth. After reaching the position, the mating rack 405 falls down and is locked with the fixed rack 403, which can ensure the stability of the mobile floating platform 402; the spring seat 407 in the present application is an existing component, which is used to realize the resetting of the movable block 406. The end of the lifting pedal 408 is against the bottom of the movable block 406. In this way, stepping on the lifting pedal 408 can drive the movable block 406 to rise, thereby driving the mating rack 405 to rise and disengage from the fixed rack 403, so that the mobile floating platform 402 can slide freely, otherwise, the mobile floating platform 402 is locked.

[0042] The translation mechanism support assembly 1 in the present application can achieve a certain degree of adjustment, specifically, as Figure 1As shown, the translation mechanism support assembly 1 includes: A support 101, which is an existing support; A translation mechanism 102, one end of which is connected to the support 101, and the translation mechanism 102 can achieve lateral movement, thereby driving the entire inspection platform assembly 3 to translate; A base 103 connected to the other end of the translation mechanism 102; The closed telescopic spiral leg 104 is installed at one end of the base away from the support 101 .

[0043] Further description is given for the translation mechanism 102, specifically including: An active frame 105, one end of which is hinged to the support 101, and the other end of which is hinged to the base 103; A translation hydraulic cylinder 106, one end of which is connected to the support 101, and the other end of which is connected to the active frame 105; A connecting frame 107, one end of which is connected to the support 101, and the other end of which is hinged to the base 103, and the connecting frame 107 and the active frame 105 are parallel to each other; The locking unit 108 is connected to the support 101 at one end and to the active frame 105 at the other end. Specifically, the active frame 105 is pushed by the translation hydraulic cylinder 106, and then the movement of the connecting frame 107 is realized. After reaching the corresponding position, the locking unit 108 is used to complete the locking, thereby ensuring the stability of the translation mechanism support assembly 1.

[0044] In order to ensure that the translation mechanism 102 moves to a certain position, it can be stably supported, such as Figure 3 As shown, the present application designs a locking unit 108, and the locking unit 108 includes: A telescopic rod 109, one end of which is connected to the support 101; A telescopic sleeve 110, one end of which is connected to the base 103, and the other end of which is matched with the telescopic rod 109, and a telescopic joint 111 is formed on the telescopic sleeve 110; The clamp assembly 112 is installed on the telescopic sleeve 110, wherein the telescopic rod 109 is movably arranged in the telescopic sleeve 110 to form a telescopic structure. After reaching the corresponding position, the clamp assembly 112 is used to complete the locking of the expansion joint 111, so that the telescopic rod 109 and the telescopic sleeve 110 cooperate with each other to complete the locking, thereby completing the locking of the telescopic sleeve 110 and the telescopic rod 109.

[0045] The clamp assembly 112 is an existing clamp component, including a lower clamp, an upper clamp, a locking bolt, etc., and is mainly used to lock the telescopic sleeve 110.

[0046] In order to avoid corrosion of the closed telescopic spiral leg 104, the present application needs to design the closed telescopic spiral leg 104 and add an outer square tube to form protection. The specific structure is as follows: Figure 4 As shown, including: A chassis 113, which is preferably a disc structure; The inner square tube 114 is mounted on the chassis 113; The outer square tube 115 is sleeved on the inner square tube 114; A trapezoidal nut 116 is installed inside the outer square tube 115 , and the trapezoidal nut 116 is located above the inner square tube 114 ; The trapezoidal screw 117 is installed on the outer square tube 115, and the trapezoidal screw 117 extends to the inside of the inner square tube 114, and the trapezoidal screw 117 cooperates with the trapezoidal nut 116; the trapezoidal screw 117 in the present application is located inside the inner square tube 114, and when the trapezoidal screw 117 rotates, the outer square tube 115 moves up, thereby adjusting the height of the closed telescopic spiral leg.

[0047] Further explanation for this application: The present application adopts a translation mechanism, in which the relative movement of the translation mechanism support component 1 is also achieved through the translation mechanism inside it, and then the position of the top maintenance platform component can be achieved through the cross arm, thereby improving the convenience and safety of maintenance.

[0048] Because the dimensions of different BOP combinations will change, the location and dimensions of the inspection platform also need to be adjusted.

[0049] Specifically, adjustments are made through the following institutions: 1. Translation mechanism in the translation mechanism support assembly: By driving the translation hydraulic cylinder, the active frame can be driven to rotate, thereby realizing the simultaneous movement of the corresponding base and maintenance platform components, so as to adjust the distance between the maintenance platform components 3. After the adjustment is completed, the distance between the two corresponding floating platform units 4 is adjusted, and the locking is completed through the translation buckle unit 5, the rack positioning member 404 and other components.

[0050] When adjusting the translation mechanism, the present application utilizes the expansion joint of the telescopic sleeve for adjustment, wherein a 1mm spacing is left between the outer wall of the telescopic rod and the inner wall of the telescopic sleeve, so that the telescopic rod can move freely inside the telescopic sleeve, and after the movement is completed, it is locked by the clamp assembly. Specifically, a threaded hole is designed on the upper clamp of the clamp assembly, and the handle screw is screwed into the threaded hole of the upper clamp. There is a hole at the end of the handle screw, which is connected to the nut of the opening through a cotter pin, so that the nut of the opening and the handle screw rotate simultaneously. When the handle screw is tightened (clockwise), the upper and lower clamps are pressed against the upper and lower parts of the opening of the telescopic sleeve, and at the same time, the telescopic rod is pressed against the telescopic sleeve, and the telescopic rod and the telescopic sleeve cannot move relative to each other, realizing the locking function. When the handle screw is loosened (counterclockwise), the upper and lower clamps are loosened, and the telescopic rod can move back and forth in the telescopic sleeve. When the translation mechanism needs to be driven, the handle screw is loosened, and the handle screw is tightened when positioning is required.

[0051] 2. Closed telescopic spiral legs: The closed telescopic spiral leg in the present application includes a trapezoidal screw, a screw seat, a locking plate A, a locking plate B, a locking pin, a thrust bearing, a trapezoidal nut, an inner square tube, an outer square tube, a support connecting plate, a leg disc, a force rod assembly, a fixing pin, etc.

[0052] The trapezoidal screw is connected to the rotating sleeve through a fixing pin, the rotating sleeve is welded to the locking plate A, the outer square tube is welded to the screw seat and the supporting connecting plate, the screw seat is welded to the locking plate B, a thrust bearing is installed in the screw seat, and the upper part of the inner square tube is welded to the trapezoidal nut and the supporting disc.

[0053] The locking plates A and B are designed with many misaligned holes. The centers of the two holes are on the same center circle. After the two rotate relative to each other, they can always find very close concentric holes. Locking pins of different diameters are inserted into the aligned holes of the locking plates A and B to achieve locking positioning. The locking pins are designed with steps for easy removal.

[0054] When the force rod rotates counterclockwise to drive the screw rod to rotate, the trapezoidal nut drives the inner square tube to move downward, and the support leg rises. Conversely, the support leg falls. When the support leg reaches the specified position, the locking pin is inserted through the alignment holes of the locking plate A and the locking plate B to position it.

[0055] The closed telescopic spiral outrigger solves the problem of easy rust and corrosion of the screw of the non-sealed spiral outrigger, especially in the field operation environment, such as the use of the maintenance platform in the oil drilling wellhead environment. Since drilling mud often falls at the wellhead, the mud contains a high level of corrosive media, which can easily cause corrosion of the equipment. The screw of the closed telescopic spiral outrigger is sealed in the inner square tube to prevent mud from splashing onto the screw, which effectively solves the problem of rust and inability to rotate.

[0056] 3. Translational buckle unit: The translational buckle unit realizes the connection between two adjacent mobile floating platforms. When the maintenance platform is working, the front and rear floating platforms need to be connected to form a whole. By pushing the rod forward, under the action of the first crank arm, the pull rod is pushed forward, and then through the action of the second crank arm, the first long axis and the third crank arm, as well as the action of the buckle connecting rod and the buckle seat unit, the buckle is pushed forward to realize translational rotation, and the hook head of the buckle is hooked into the cross bar, and the rack positioning piece cooperates with the fixed rack to realize the connection of the floating platform. The translational buckle unit in this application has a small translational amplitude and is suitable for operation in a small space between the gate blowout preventers.

[0057] 4. Rack positioning device: The rack positioning device realizes the positioning between the mobile floating platform and the floating platform seat. The structure of the device includes a lifting pedal, a matching rack, a movable block, a spring, a spring seat, a fixed screw, a guide nut, a double ear seat, a connecting bolt, etc.

[0058] The guide nut and the double-ear seat are welded and fixed, the lifting pedal is connected to the double-ear seat through a pin and can rotate around the pin. The spring is fixed and compressed in the initial position by the fixing bolt spring seat, and the fixing screw is screwed into the guide nut to the bottom. The movable block is connected to the matching rack through the connecting bolt. In the initial position, the movable block is in a low position under the action of the spring force, and the matching rack is engaged with the fixed rack fixed on the floating platform seat, limiting the longitudinal movement and achieving longitudinal positioning. When the lifting pedal is stepped on, the lifting pedal rotates to lift the movable block and move upward along the guide nut. At this time, the spring is compressed, and the movable block moves upward with the matching rack. The matching rack leaves the fixed rack, and the movable floating platform and the floating platform seat can move longitudinally.

[0059] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0060] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A translation lifting maintenance platform, characterized in that: include: At least two sets of translation mechanism support assemblies (1) are arranged at intervals; At least two cross arms (2) are mounted on the translation mechanism support assembly (1) in a one-to-one correspondence; A plurality of inspection platform assemblies (3) are mounted one by one on the top of the cross arm (2); A plurality of translational buckle units (5), wherein the translational buckle units (5) are arranged between any two adjacent inspection platform components (3), one end of the translational buckle unit (5) is movably mounted on the end of one of the inspection platform components (3), and the other end is connected and matched with the end of another inspection platform component (3).

2. The translation lifting maintenance platform according to claim 1 is characterized in that: The translational buckle unit (5) comprises: A first crank arm (501), one end of which is connected to the end of the inspection platform assembly (3) via a pin; A pull rod (502), one end of which is movably connected to the other end of the first crank arm (501); A second crank arm (503), the top of which is movably connected to the other end of the pull rod (502), and the bottom of which is connected to the end of the inspection platform assembly (3) via a pin; A first long shaft (504) mounted on the top of the second crank arm (503); At least two third curved arms (505) are installed on the first long axis (504) at intervals; At least two buckles (506) are mounted on the ends of the third curved arms (505) in a one-to-one correspondence; The buckle seat unit (507) is installed on the inspection platform assembly (3), and the buckle seat unit (507) is connected to the buckle (506).

3. The translation lifting maintenance platform according to claim 2 is characterized in that: The translational buckle unit (5) further comprises a pushing rod (508), wherein the pushing rod (508) is connected to the first curved arm (501).

4. The translational lifting inspection platform according to claim 1 is characterized in that: The inspection platform assembly (3) comprises: Floating platform unit (4); Surrounding rods (6) are installed around the floating platform unit (4); The floating platform unit (4) comprises: Two floating platforms (401) are arranged in parallel and at intervals; Two movable floating platforms (402) are movably mounted on the floating platform seat (401) in a one-to-one correspondence, wherein the translational buckle unit (5) is mounted on one of the movable floating platforms (402), and a crossbar (7) cooperating with the translational buckle unit (5) is mounted on the other movable floating platform (402).

5. The translational lifting inspection platform according to claim 4 is characterized in that: The floating platform unit (4) further comprises: A fixed rack (403) is mounted on the top of the floating platform seat (401), and the fixed rack (403) extends along the length direction of the floating platform seat (401); The rack positioning member (404) is mounted on the movable floating platform (402), and the end of the rack positioning member (404) cooperates with the fixed rack (403).

6. The translational lifting inspection platform according to claim 5 is characterized in that: The rack positioning member (404) comprises: A mating rack (405), one side of which is mated with the fixed rack (403); A movable block (406), one end of which is connected to the matching rack (405), and the other end of which is mounted on the movable floating platform (402) via a spring seat (407); A lifting pedal (408) is hinged on the movable floating platform (402), and an end of the lifting pedal (408) cooperates with the bottom of the movable block (406).

7. The translational lifting inspection platform according to claim 1 is characterized in that: The translation mechanism support assembly (1) comprises: Support (101); A translation mechanism (102), one end of which is connected to the support (101); A base (103) connected to the other end of the translation mechanism (102); A closed telescopic spiral leg (104) is mounted on an end of the base (103) away from the support (101).

8. The translational lifting inspection platform according to claim 7 is characterized in that: The translation mechanism (102) comprises: An active frame (105), one end of which is hinged to the support (101), and the other end of which is hinged to the base (103); A translation hydraulic cylinder (106), one end of which is connected to the support (101), and the other end of which is connected to the active frame (105); A connecting frame (107), one end of which is connected to the support (101) and the other end of which is hinged to the base (103); the connecting frame (107) and the active frame (105) are parallel to each other; A locking unit (108) has one end connected to the support (101) and the other end connected to the active frame (105).

9. The translational lifting inspection platform according to claim 8 is characterized in that: The locking unit (108) comprises: A telescopic rod (109), one end of the telescopic rod (109) being connected to the support; A telescopic sleeve (110), one end of which is connected to the base (103) and the other end of which is matched with the telescopic rod (109); a telescopic joint (111) is provided on the telescopic sleeve (110); The clamp assembly (112) is installed on the telescopic sleeve (110).

10. The translational lifting inspection platform according to claim 9 is characterized in that: The closed telescopic spiral leg (104) comprises: chassis (113); An inner square tube (114) mounted on the chassis (113); An outer square tube (115) is sleeved on the inner square tube (114); A trapezoidal nut (116) is installed inside the outer square tube (115), and the trapezoidal nut (116) is located above the inner square tube (114); A trapezoidal screw rod (117) is mounted on the outer square tube (115), and the trapezoidal screw rod (117) extends into the interior of the inner square tube (114). The trapezoidal screw rod (117) cooperates with the trapezoidal nut (116).

Images