Platform lifting locking device and lightweight drilling machine platform lifting locking method

Abstract

The invention relates to the technical field of platform lifting and locking, and discloses a platform lifting and locking device which comprises a drilling machine platform base, driving mechanisms are arranged on the two sides of the upper portion of the drilling machine platform base, a lifting mechanism is arranged in the middle of the upper portion of the drilling machine platform base, and the lifting mechanism comprises a plurality of single sections, a supporting hinge frame and a supporting angle seat. The supporting angle seats are located above the driving mechanism, the supporting angle seats are rotationally arranged on the two sides of each single section, and the supporting hinge frames are arranged in the single sections. The supporting angle seats on the two sides of the single section are supported through the driving mechanism, due to the fact that the driving mechanism of the lifting mechanism is always located at the bottom of the drilling machine platform base, the gravity of the lifted lifting mechanism is slightly lower, the driving mechanism does not need to bear the gravity of the driving mechanism, and the problem that when an existing self-climbing lifting platform ascends and descends is solved. A carrier capable of lifting and a power source need to be driven to lift together, or a crossed telescopic frame cannot complete high-altitude lifting.

Description

Technical Field

[0001] The present invention relates to the technical field of platform lifting and locking, and in particular to a platform lifting and locking device and a method for lifting and locking a lightweight drilling rig platform. Background Art

[0002] Lightweight drilling rigs are special mechanical equipment widely used in the construction of water wells and pile holes. They are widely used as the main construction equipment in the construction of water wells in water-scarce areas, the drilling of air-conditioning wells in ground-source heat pump technology, and the construction of pile holes for high-rise building foundations and bridge foundations in urban construction. They are mechanical equipment used in drilling water wells and completing operations such as lowering well pipes and washing wells. They include power equipment and drill bits, drill rods, core tubes, drill racks, etc. They are generally divided into three categories: rotary drills, impact drills, and compound drills.

[0003] When the drilling rig is working, it is necessary to place the drilling rig on a lifting platform, lift the drilling rig, and then cooperate with the drilling rig to drill into the soil; a self-climbing lifting platform is generally used to lift the drilling rig, but the existing self-climbing lifting platform, when in use, needs to first erect the crawling guide rail by a lifting device such as a crane, and vertically stabilize the crawling guide rail, and then drive the drive unit, and assemble the carrier and the crawling guide rail. When the drilling rig is lifted, the drive unit needs to drive the crawling rollers (gears, etc.) on the carrier to move upward along the crawling guide rail. The drive unit not only needs to load the drilling rig, but also needs to load its own weight. After the drilling rig is lifted, the drilling rig, the carrier and the drive unit are located above the crawling guide rail, which makes the gravity of the lifting platform higher. Generally, it is necessary to add additional counterweights at the bottom of the lifting platform, which increases the cost of arranging and transporting the lifting platform. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a platform lifting and locking device and a method for lifting and locking a lightweight drilling rig platform, which has the advantages of supporting the supporting angle seats on both sides of the single section through a driving mechanism. Since the driving mechanism of the lifting mechanism is always at the bottom of the drilling rig platform base, the gravity of the lifting mechanism after rising is biased downward, and the driving mechanism does not need to bear its own gravity, thereby avoiding the situation in which the existing self-climbing lifting platform needs to drive the lifting and lowering carrier and the power source to lift together, or the cross telescopic frame cannot complete the high-altitude lifting function, etc., solves the problem of the existing self-climbing lifting platform when in use. It is necessary to first erect the crawling guide rail using a crane or other lifting equipment, and vertically stabilize the crawling guide rail, and then assemble the drive unit, carrier and crawling guide rail. When lifting the drilling rig, the drive unit needs to drive the crawling rollers (gears, etc.) on the carrier to move upward along the crawling guide rail. The drive unit not only needs to load the drilling rig, but also needs to load its own weight. After the drilling rig is raised, the drilling rig, carrier and drive unit are located above the crawling guide rail, which makes the gravity of the lifting platform higher. Generally, it is necessary to add additional counterweights at the bottom of the lifting platform, which adds to the cost of arranging and transporting the lifting platform.

[0006] (II) Technical solution

[0007] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a platform lifting and locking device, comprising a drilling platform base, a driving mechanism is arranged on both sides above the drilling platform base, a lifting mechanism is arranged in the middle above the drilling platform base, the lifting mechanism comprises a plurality of single sections, a supporting hinge frame and a supporting angle seat; the supporting angle seat is located above the driving mechanism, and the supporting angle seat is rotatably arranged on both sides of each single section, and the supporting hinge frame is arranged inside the single section; a rotation locking mechanism is arranged at the bottom of the supporting angle seat, the rotation locking mechanism comprises a rotating pin and a rotating torsion spring, the rotating pin passes through the rotating shaft of the supporting angle seat, and the rotating torsion spring is located between the rotating pin and the supporting angle seat; a supporting carrier is arranged between each two supporting hinge frames, one end of the bottom of the supporting hinge frame is rotatably connected to the supporting carrier plate, a trigger locking assembly is arranged on the supporting carrier plate, and the other end of the bottom of the supporting hinge frame is triggered after passing over the trigger locking assembly.

[0008] Preferably, the driving mechanism comprises a hydraulic cylinder, the hydraulic cylinder is arranged corresponding to the supporting angle seat, the hydraulic cylinder is located above the drilling rig platform base, and the output shaft of the hydraulic cylinder is provided with a polygonal frustum.

[0009] Preferably, the single section includes an upper mounting plate and a lower mounting plate, the support hinge frame, the support carrier plate and the trigger locking assembly are all located between the upper mounting plate and the lower mounting plate, and the support angle seats are located on both sides of the upper mounting plate.

[0010] Preferably, the supporting hinge frame includes a first scissors arm and a second scissors arm, and each group of the first scissors arms and the second scissors arms that cross each other are rotatably connected in the middle, the first scissors arm at the top of the supporting hinge frame is rotatably connected to the upper mounting plate, the first scissors arm at the bottom of the supporting hinge frame is rotatably connected to the lower mounting plate, the top of the first scissors arm in the middle of the supporting hinge frame is rotatably connected to the upper and lower surfaces of the supporting carrier plate corresponding to the top respectively, and a locking assembly is provided on the lower mounting plate, the locking assembly is located at the bottom of the second scissors arm, and limits the movement of the second scissors arm.

[0011] Preferably, the supporting angle seat is provided with a polygonal groove, and the polygonal groove is arranged corresponding to the polygonal cone. A receiving groove is provided on one side of the supporting angle seat, and the rotating pin is provided between the supporting angle seat and the receiving groove. A baffle is provided on one side of the receiving groove, and the baffle limits the rotation angle of the supporting angle seat.

[0012] Preferably, the trigger locking assembly includes an adjusting support plate, the adjusting support plate corresponds to the second scissor arm, a concave trigger wedge is provided on the upper surface of the adjusting support plate close to the first scissor arm, a tilt rod is provided on one side inside the adjusting support plate, the concave trigger wedge is connected to one end of the tilt rod, and an upper concave locking groove is provided on the other end of the tilt rod, the upper concave locking groove is located on the lower surface of the adjusting support plate away from the first scissor arm, a compression spring is provided on the top of the upper concave locking groove, and the other end of the compression spring is connected to the inside of the adjusting support plate.

[0013] Preferably, a movable locking wedge is provided on one side of the tilting rod close to the first scissor arm, and one side of the bottom of the movable locking wedge extends to the bottom of the adjustment support plate. The movable locking wedge is arranged to slide up and down relative to the tilting rod, and an opening is provided above the adjustment support plate, and the movable locking wedge extends upward from the opening.

[0014] Preferably, the locking assembly includes an active buckle and a locking claw, the active buckle is rotatably arranged on the outside of the lower mounting plate, the locking claw is arranged at the bottom of the second scissor arm at the bottom layer in the single section, the locking claw is extended outward, and the active buckle is used to engage with the locking claw.

[0015] Preferably, the locking assembly also includes an upper torsion spring and an unlocking interference contact, the upper torsion spring is arranged at the rotation point of the movable buckle and the lower mounting plate, the unlocking interference contact is located on the lower mounting plate, and the unlocking interference contact is interference-arranged with the movable buckle.

[0016] A method for lifting and locking a lightweight drilling rig platform uses the platform lifting and locking device.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the present invention provides a platform lifting and locking device having the following features:

[0019] Beneficial effects:

[0020] 1. The platform lifting and locking device supports the supporting angle seats on both sides of the single section through the driving mechanism. Since the driving mechanism of the lifting mechanism is always at the bottom of the drilling rig platform base, the gravity of the lifting mechanism after rising is biased downward, and the driving mechanism does not need to bear its own gravity, avoiding the existing self-climbing lifting platform. When lifting, it is necessary to drive the lifting and lowering carrier and the power source together, or the cross telescopic frame cannot complete the high-altitude lifting function.

[0021] 2. The platform lifting locking device realizes the change in height between the upper mounting plate and the lower mounting plate when the first scissor arm and the second scissor arm in the supporting hinge frame move relative to each other. Under the drive of the driving mechanism, the upper mounting plate rises. At this time, since the two ends of the first scissor arm are respectively connected to the upper mounting plate and the lower mounting plate at fixed points for rotation, the first scissor arm gradually moves in the vertical direction. A rotating torsion spring is provided at the rotating connection of the first scissor arm and the second scissor arm, so that the first scissor arm and the second scissor arm can move toward the middle, and then when the first scissor arm gradually moves in the vertical direction, the second scissor arm gradually moves in the vertical direction with the first scissor arm under the action of the rotating torsion spring. Then, after the first scissor arm and the second scissor arm complete the movement, the relative height between the upper mounting plate and the lower mounting plate in the single section is completed. After the single section completes the rise, the supporting hinge frame in the next single section starts to rise. After the rise is completed, the second scissor arm in the previous single section is locked by triggering the locking assembly.

[0022] 3. The platform lifting and locking device supports the second scissor arm by triggering the adjusting support plate in the locking assembly. When one end of the bottom of the second scissor arm of the upper layer moves toward the direction of the first scissor arm and moves to the concave trigger wedge on the adjusting support plate, the concave trigger wedge is pressed, and then the concave locking groove at the other end is driven by the tilting rod, so that the concave locking groove is retracted into the cavity inside the adjusting support plate. At this time, the concave locking groove releases the fixation of the second scissor arm of the lower layer.

[0023] 4. The platform lifting locking device has the following steps: when the bottom end of the second scissor arm moves to the movable buckle, the locking claw on the second scissor arm enters the movable buckle and engages with the movable buckle to lock the second scissor arm; through the upper torsion spring arranged at the rotation position of the movable buckle, when the bottom end of the second scissor arm moves to the movable buckle, the locking claw on the second scissor arm first pushes the movable buckle upwards to make the movable buckle move upwards; then, as the second scissor arm continues to move, after the locking claw is located at the bottom of the movable buckle, the movable buckle is rotated downward and engaged with the locking claw under the action of the upper torsion spring; when it is necessary to support the hinge frame to descend, the movable buckle is first flipped upwards, and the unlocking interference contact is made to contact with the movable buckle, so that the movable buckle is separated from the locking claw and will not descend. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is one of the overall three-dimensional structural schematic diagrams of the present invention;

[0025] Figure 2 This is the second schematic diagram of the overall three-dimensional structure of the present invention;

[0026] Figure 3 It is a partial structural schematic diagram of the driving mechanism and lifting mechanism of the present invention;

[0027] Figure 4 For the present invention Figure 3 A local enlarged structural schematic diagram;

[0028] Figure 5 This is one of the structural schematic diagrams of a single section in the lifting mechanism of the present invention in an extended state;

[0029] Figure 6 This is the second structural schematic diagram of a single section in the lifting mechanism of the present invention in an extended state;

[0030] Figure 7 This is one of the structural schematic diagrams of the lifting mechanism of the present invention in a fully extended state;

[0031] Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at B;

[0032] Fig. 9 This is the second structural schematic diagram of the lifting mechanism of the present invention in a fully extended state;

[0033] Fig.10 For the present invention Fig. 9 Schematic diagram of the local enlarged structure at C.

[0034] In the figure: 1. drilling rig platform base; 2. driving mechanism; 21. hydraulic cylinder; 22. polygonal frustum; 3. lifting mechanism; 31. single section; 311. upper mounting plate; 312. lower mounting plate; 32. supporting hinge frame; 321. first scissor arm; 322. second scissor arm; 33. supporting angle seat; 331. polygonal groove; 332. storage groove; 333. baffle; 34. supporting carrier plate; 35. trigger locking assembly; 351. adjusting support plate; 352. concave trigger wedge platform; 353. tilting rod; 354. upper concave locking groove; 355. compression spring; 356. moving locking wedge; 4. rotating locking mechanism; 41. rotating pin; 42. rotating torsion spring; 5. locking assembly; 51. movable buckle; 52. locking claw; 53. upper torsion spring; 54. unlocking interference contact. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-10 A platform lifting and locking device comprises a drilling platform base 1, a driving mechanism 2 is arranged on both sides above the drilling platform base 1, a lifting mechanism 3 is arranged in the middle of the upper part of the drilling platform base 1, and the lifting mechanism 3 comprises a plurality of single sections 31, a support hinge frame 32 and a support angle seat 33; the support angle seat 33 is located above the driving mechanism 2, and the support angle seat 33 is rotatably arranged on both sides of each single section 31, and the support hinge frame 32 is arranged inside the single section 31; a rotation locking mechanism 4 is arranged at the bottom of the support angle seat 33 The rotation locking mechanism 4 includes a rotation pin 41 and a rotation-out torsion spring 42, wherein the rotation pin 41 passes through the rotation shaft of the support angle seat 33, and the rotation-out torsion spring 42 is located between the rotation pin 41 and the support angle seat 33; a support carrier plate 34 is respectively arranged between each two of the support hinge frames 32, and one end of the bottom of the support hinge frame 32 is rotationally connected to the support carrier plate 34, and a trigger locking assembly 35 is arranged on the support carrier plate 34, and the other end of the bottom of the support hinge frame 32 is triggered after passing over the trigger locking assembly 35.

[0037] In specific use, the drilling rig platform base 1 is composed of a supporting foot rod that can be expanded outwards and a supporting base (such as Figure 1 When drilling, the drilling equipment (not shown) is installed on the top of the lifting mechanism 3;

[0038] When in use, the drilling rig platform base 1 is first placed on the ground stably, and then the supporting angle seats 33 on both sides of the first layer single section 31 in the lifting mechanism 3 are driven by the driving mechanism 2, wherein the supporting angle seats 33 on both sides of the first layer single section 31 in the lifting mechanism 3 are extended outwards under the action of the rotation locking mechanism 4, and under the action of the rotation-out torsion spring 42 in the rotation locking mechanism 4, the supporting angle seats 33 are driven to rotate outwards with the rotating pin 41 until they are rotated just above the driving mechanism 2, and in the process of the supporting angle seats 33 moving upwards, the first layer single section is driven The uppermost support hinge frame 32 in 31 is extended, and at the same time, the support carrier plate 34 at the bottom of the uppermost support hinge frame 32 is driven to rise, and the trigger locking component 35 located on the support carrier plate 34 is triggered at one end of the bottom of the uppermost support hinge frame 32 to achieve triggering and unlock the support hinge frame 32 of the next layer. After the support hinge frame 32 of the next layer is extended, the trigger locking component 35 is used to lock one end of the bottom of the support hinge frame 32 of the previous layer, and so on, to complete the extension of the support hinge frames 32 of the subsequent layers, and then The first layer of single sections 31 are lifted up; when the single section 31 of the upper layer has completed its ascent, the single section 31 is locked, and the driving mechanism 2 is lowered to the bottom of both sides of the single section 31 of the next layer. At this time, the supporting angle seat 33 loses the obstruction of the driving mechanism 2, and under the action of the rotating torsion spring 42, the supporting angle seat 33 is rotated outward and rotated to the top of the driving mechanism 2, and then the driving mechanism 2 rises again, and the single section 31 of the next layer is lifted up, until the single section 31 of the next layer is locked after completing its ascent, and so on, to complete the subsequent lifting of the single section 31 When the lifting mechanism 3 rises to the required position and the single section 31 is in the rising stage, the supporting angle seats 33 on both sides of the single section 31 are supported by the driving mechanism 2. Since the driving mechanism 2 of the lifting mechanism 3 is always at the bottom of the drilling rig platform base 1, the gravity of the lifting mechanism 3 after the rise is biased downward, and the driving mechanism 2 does not need to bear its own gravity, avoiding the situation that when the existing self-climbing lifting platform is lifted, it is necessary to drive the lifting vehicle and the power source to lift together, or the cross telescopic frame cannot complete the high-altitude lifting function.

[0039] Furthermore, the driving mechanism 2 includes a hydraulic cylinder 21, which is arranged corresponding to the supporting angle seat 33, and the hydraulic cylinder 21 is located above the drilling rig platform base 1. The output shaft of the hydraulic cylinder 21 is provided with a polygonal cone 22; the hydraulic cylinder 21 in the driving mechanism 2 is extended and retracted on the drilling rig platform base 1, and the polygonal cone 22 on the top of the hydraulic cylinder 21 supports the supporting angle seat 33 that is rotated outward when extended; when the output shaft of the hydraulic cylinder 21 is retracted to the bottom of the single section 31, the supporting angle seat 33 loses the restriction of the output shaft of the hydraulic cylinder 21, and under the action of the rotation-out torsion spring 42, the supporting angle seat 33 rotates outward.

[0040] Furthermore, the single section 31 includes an upper mounting plate 311 and a lower mounting plate 312, the support hinge frame 32, the support carrier plate 34 and the trigger locking assembly 35 are all located between the upper mounting plate 311 and the lower mounting plate 312, and the support angle seat 33 is located on both sides of the upper mounting plate 311; the lifting single section 31 is assembled by the upper mounting plate 311 and the lower mounting plate 312 in the single section 31 to complete the lifting work section by section.

[0041] Furthermore, the support hinge frame 32 includes a first scissor arm 321 and a second scissor arm 322, and the middle of each group of the first scissor arms 321 and the second scissor arms 322 that cross each other are rotatably connected, the first scissor arm 321 at the top of the support hinge frame 32 is rotatably connected to the upper mounting plate 311 at a fixed point, and the first scissor arm 321 at the bottom of the support hinge frame 32 is rotatably connected to the lower mounting plate 312 at a fixed point, and the top of the first scissor arm 321 in the middle of the support hinge frame 32 is connected to the top of the support hinge frame 32 corresponding to the first scissor arm 321 at the top. The upper and lower surfaces of the support plate 34 are connected to each other at a fixed point, and a locking assembly 5 is provided on the lower mounting plate 312. The locking assembly 5 is located at the bottom of the second scissor arm 322 to limit the movement of the second scissor arm 322. When the first scissor arm 321 and the second scissor arm 322 in the support hinge frame 32 move relative to each other, the height change between the upper mounting plate 311 and the lower mounting plate 312 is realized. Under the drive of the driving mechanism 2, the upper mounting plate 311 rises. At this time, since the two ends of the first scissor arm 321 are respectively connected to the upper mounting plate 311 and the lower mounting plate 312 is a fixed-point rotation connection, so that the first scissor arm 321 gradually moves in the vertical direction, wherein the first scissor arm 321 and the second scissor arm 322 are provided with a rotation torsion spring at the rotation connection, so that the first scissor arm 321 and the second scissor arm 322 can move toward the middle, and then when the first scissor arm 321 gradually moves in the vertical direction, the second scissor arm 322 gradually moves in the vertical direction with the first scissor arm 321 under the action of the rotation torsion spring, and then after the first scissor arm 321 and the second scissor arm 322 complete the movement, the upper mounting plate in the single section 31 After the relative height between the single section 311 and the lower mounting plate 312 is completely raised, the supporting hinge frame 32 in the next single section 31 starts to rise. After the rise is completed, the second scissors arm 322 in the upper single section 31 is locked by triggering the locking assembly 35; the second scissors arm 322 at the bottom of the single section 31 is locked under the action of the locking assembly 5, wherein the rotating torsion spring here only acts on the second scissors arm 322 to be able to move relative to the first scissors arm 321, and there is no support for the height between the upper mounting plate 311 and the lower mounting plate 312.

[0042] Furthermore, the support angle seat 33 is provided with a polygonal groove 331, and the polygonal groove 331 is arranged corresponding to the polygonal cone 22. A receiving groove 332 is arranged on one side of the support angle seat 33, and the rotating pin 41 is arranged between the support angle seat 33 and the receiving groove 332. A baffle 333 is arranged on one side of the receiving groove 332, and the baffle 333 limits the rotation angle of the support angle seat 33; the polygonal groove 331 in the support angle seat 33 corresponds to the polygonal cone 22 of the output shaft of the hydraulic cylinder 21, and when the hydraulic cylinder 21 supports the support angle seat 33, sliding between the output shaft of the hydraulic cylinder 21 and the support angle seat 33 is avoided. When the support angle seat 33 rotates outward under the action of the rotation-out torsion spring 42, after contacting the baffle 333 on one side of the receiving groove 332, the polygonal groove 331 at the bottom of the support angle seat 33 is aligned with the polygonal cone 22 of the output shaft of the hydraulic cylinder 21.

[0043] Furthermore, the trigger locking assembly 35 includes an adjustment support plate 351, the adjustment support plate 351 corresponds to the second scissor arm 322, the upper surface of the adjustment support plate 351 is provided with a concave trigger wedge platform 352 near the first scissor arm 321, a tilting rod 353 is provided on one side of the inner part of the adjustment support plate 351, the concave trigger wedge platform 352 is connected to one end of the tilting rod 353, and the other end of the tilting rod 353 is provided with an upper concave locking groove 354, the upper concave locking groove 354 is located at a position of the lower surface of the adjustment support plate 351 away from the first scissor arm 321, a compression spring 355 is provided on the top of the upper concave locking groove 354, and the other end of the compression spring 355 is connected to the inside of the adjustment support plate 351; The adjusting support plate 351 in the trigger locking assembly 35 supports the second scissor arm 322. When one end of the bottom of the second scissor arm 322 of the upper layer moves toward the first scissor arm 321 and moves to the concave trigger wedge 352 on the adjusting support plate 351, the concave trigger wedge 352 is pressed, and then the upper concave locking groove 354 at the other end is driven by the tilting rod 353, so that the upper concave locking groove 354 is retracted into the cavity inside the adjusting support plate 351. At this time, the upper concave locking groove 354 releases the second scissor arm 322 of the lower layer (before this, the upper concave locking groove 354 fixes the second scissor arm 322 to prevent the supporting hinge frame 32 in the upper single section 31 from extending when the supporting hinge frame 32 in the lower single section 31 is extended).

[0044] Furthermore, a movable locking wedge 356 is provided on one side of the tilting rod 353 close to the first scissor arm 321, and one side of the bottom of the movable locking wedge 356 extends to the bottom of the adjustment support plate 351, and the movable locking wedge 356 is slidably arranged up and down relative to the tilting rod 353, and an opening is opened above the adjustment support plate 351, and the movable locking wedge 356 extends upward from the opening; through the movable locking wedge 356 slidably arranged on the tilting rod 353, when the second scissor arm 322 of the next layer moves to the bottom of the second scissor arm 322 of the upper layer, the movable locking wedge 356 is pushed to move upward to fix one side of the bottom of the second scissor arm 322 of the upper layer, and then cooperate with the concave trigger wedge platform 352 on the other side to lock and fix the second scissor arm 322 of the upper layer, and at the same time, the bottom of the second scissor arm 322 of the next layer triggers the trigger locking assembly 35 in the lower layer.

[0045] Furthermore, the locking assembly 5 includes an active buckle 51 and a locking claw 52, ​​the active buckle 51 is rotatably arranged on the outside of the lower mounting plate 312, the locking claw 52 is arranged at the bottom of the second scissor arm 322 of the bottom layer in the single section 31, the locking claw 52 is extended outward, and the active buckle 51 is used to engage with the locking claw 52; through the active buckle 51 and the locking claw 52 in the locking assembly 5, when the bottom end of the second scissor arm 322 moves to the active buckle 51, the locking claw 52 on the second scissor arm 322 enters the active buckle 51, and engages with the active buckle 51 to lock the second scissor arm 322.

[0046] Furthermore, the locking assembly 5 also includes an upper torsion spring 53 and an unlocking interference contact 54, wherein the upper torsion spring 53 is arranged at the rotation position of the active buckle 51 and the lower mounting plate 312, and the unlocking interference contact 54 is located on the lower mounting plate 312, and the unlocking interference contact 54 is arranged with interference between the active buckle 51; through the upper torsion spring 53 arranged at the rotation position of the active buckle 51, when the bottom end of the second scissor arm 322 moves to the active buckle 51, the locking contact 54 on the second scissor arm 322 is locked. The claw 52 first pushes the movable buckle 51 upward, causing the movable buckle 51 to move upward. Then, as the second scissor arm 322 continues to move, after the locking claw 52 is located at the bottom of the movable buckle 51, under the action of the upper torsion spring 53, the movable buckle 51 rotates downward and engages with the locking claw 52. When it is necessary to support the hinge frame 32 to descend, the movable buckle 51 is first flipped upward, and the unlocking interference contact 54 is made to contact with the movable buckle 51, so that the movable buckle 51 is separated from the locking claw 52 and will not descend.

[0047] A method for lifting and locking a lightweight drilling rig platform uses the platform lifting and locking device.

[0048] Working principle: When in use, first place the drilling platform base 1 on the ground stably, then drive the supporting angle seats 33 on both sides of the first layer single section 31 in the lifting mechanism 3 through the driving mechanism 2, and extend and retract on the drilling platform base 1 through the hydraulic cylinder 21 in the driving mechanism 2. When extending, the polygonal cone 22 on the top of the hydraulic cylinder 21 supports the supporting angle seat 33 that is rotated outward; then the polygonal groove 331 in the supporting angle seat 33 corresponds to the polygonal cone 22 of the output shaft of the hydraulic cylinder 21, and when the hydraulic cylinder 21 supports the supporting angle seat 33, sliding between the output shaft of the hydraulic cylinder 21 and the supporting angle seat 33 is avoided. When the supporting angle seat 33 rotates outward under the action of the rotating torsion spring 42, it contacts the baffle 333 on one side of the storage groove 332, which is the bottom of the supporting angle seat 33. The polygonal groove 331 is aligned with the polygonal cone 22 of the output shaft of the hydraulic cylinder 21; when the output shaft of the hydraulic cylinder 21 is retracted to the bottom of the single section 31, the support angle seat 33 loses the restriction of the output shaft of the hydraulic cylinder 21, and under the action of the rotation-out torsion spring 42, the support angle seat 33 rotates outward; wherein the support angle seats 33 on both sides of the first layer of the single section 31 in the lifting mechanism 3 are extended outward under the action of the rotation locking mechanism 4, and under the action of the rotation-out torsion spring 42 in the rotation locking mechanism 4, the support angle seat 33 is driven to rotate outward with the rotation pin 41 until it rotates directly above the driving mechanism 2. In the process of the support angle seat 33 moving upward, the uppermost support hinge frame 32 in the first layer of the single section 31 is driven to extend, and at the same time, the support carrier plate 34 at the bottom of the uppermost support hinge frame 32 is driven to rise;

[0049] In the above process, when the first scissor arm 321 and the second scissor arm 322 in the supporting hinge frame 32 move relative to each other, the height change between the upper mounting plate 311 and the lower mounting plate 312 is realized. Under the drive of the driving mechanism 2, the upper mounting plate 311 rises. At this time, since the two ends of the first scissor arm 321 are respectively connected to the upper mounting plate 311 and the lower mounting plate 312 at a fixed point, the first scissor arm 321 gradually moves in the vertical direction. A rotation torsion spring is provided at the rotation connection between the first scissor arm 321 and the second scissor arm 322, so that the first scissor arm 321 and the second scissor arm 322 can move toward the middle. Then, when the first scissor arm 321 gradually moves in the vertical direction, the second scissor arm 322 is connected to the upper mounting plate 311 and the lower mounting plate 312 under the action of the rotation torsion spring. The first scissor arm 321 gradually moves in the vertical direction with the second scissor arm 322. After the first scissor arm 321 and the second scissor arm 322 complete their movement, the relative height between the upper mounting plate 311 and the lower mounting plate 312 in the single section 31 is completely raised. The support hinge frame 32 in the next single section 31 starts to rise. After the rise is completed, the second scissor arm 322 in the upper single section 31 is locked by triggering the locking assembly 35. The second scissor arm 322 at the bottom of the single section 31 is locked under the action of the locking assembly 5, wherein the rotation torsion spring here only acts on the second scissor arm 322 to be able to move relative to the first scissor arm 321, and there is no support for the height between the upper mounting plate 311 and the lower mounting plate 312.

[0050] Then, the trigger locking assembly 35 located on the support carrier plate 34 is triggered at one end of the bottom of the support hinge frame 32 of the uppermost layer to realize the triggering and unlocking of the support hinge frame 32 of the next layer. When the support hinge frame 32 of the next layer is extended, the trigger locking assembly 35 is used to lock one end of the bottom of the support hinge frame 32 of the previous layer. By analogy, the extension of the support hinge frames 32 of the subsequent layers is completed, thereby realizing the rise of the single section 31 of the first layer.

[0051] The second scissor arm 322 is supported by the adjusting support plate 351 in the trigger locking assembly 35, and when one end of the bottom of the second scissor arm 322 of the upper layer moves toward the first scissor arm 321 and moves onto the concave trigger wedge 352 on the adjusting support plate 351, the concave trigger wedge 352 is pressed, and then the upper concave locking groove 354 at the other end is driven by the tilting rod 353, so that the upper concave locking groove 354 is retracted into the cavity inside the adjusting support plate 351, and at this time, the upper concave locking groove 354 releases the second scissor arm 322 of the lower layer (before this, the upper concave locking groove 354 fixes the second scissor arm 322 to prevent the support hinge frame 32 in the upper single section 31 from extending when the support hinge frame 32 in the lower single section 31 is extended);

[0052] After the upper single section 31 has completed its ascent, the single section 31 is locked, and the driving mechanism 2 is lowered to the bottom of both sides of the single section 31 of the next layer. At this time, the supporting angle seat 33 loses the obstruction of the driving mechanism 2, and under the action of the rotating torsion spring 42, the supporting angle seat 33 is rotated outward and rotated to the top of the driving mechanism 2, and then the driving mechanism 2 rises again to perform the ascent process on the single section 31 of the next layer, until the single section 31 of the next layer is locked after completing its ascent, and so on, the subsequent single sections 31 are completed. The movable locking wedge 356 slidingly arranged on the tilting rod 353 pushes the movable locking wedge 356 to move upward when the second scissor arm 322 of the next layer moves to the bottom of the second scissor arm 322 of the upper layer, and then cooperates with the concave triggering wedge platform 352 on the other side to lock and fix the second scissor arm 322 of the previous layer, and at the same time, the bottom of the second scissor arm 322 of the next layer triggers the trigger locking assembly 35 in the lower layer;

[0053] When the second scissor arm 322 moves to the movable buckle 51 at the bottom end, the locking claw 52 on the second scissor arm 322 enters the movable buckle 51 and engages with the movable buckle 51 to lock the second scissor arm 322. Through the upper torsion spring 53 provided at the rotating position of the movable buckle 51, when the bottom end of the second scissor arm 322 moves to the movable buckle 51, the locking claw 52 on the second scissor arm 322 first pushes the movable buckle 51 upward, so that the movable buckle 51 moves upward, and then as the second scissor arm 322 continues to move, after the locking claw 52 is located at the bottom of the movable buckle 51, the movable buckle 51 is rotated downward and engaged with the locking claw 52 under the action of the upper torsion spring 53. When it is necessary to support the hinge frame 32 to descend, the movable buckle 51 is first flipped upward, and the unlocking interference contact 54 is made to contact with the movable buckle 51, so that the movable buckle 51 is separated from the locking claw 52 and will not descend.

[0054] When the lifting mechanism 3 rises to the required position and the single section 31 is in the rising stage, the supporting angle seats 33 on both sides of the single section 31 are supported by the driving mechanism 2. Since the driving mechanism 2 of the lifting mechanism 3 is always at the bottom of the drilling rig platform base 1, the gravity of the lifting mechanism 3 after rising is biased downward, and the driving mechanism 2 does not need to bear its own gravity, avoiding the situation where the existing self-climbing lifting platform needs to drive the lifting and lowering carrier and the power source together for lifting, or the cross-type telescopic frame cannot complete the high-altitude lifting function.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A platform lifting and locking device, comprising a drilling platform base (1), characterized in that: A driving mechanism (2) is arranged on both sides above the drilling platform base (1); a lifting mechanism (3) is arranged in the middle of the drilling platform base (1); the lifting mechanism (3) comprises a plurality of single sections (31), a supporting hinge frame (32) and a supporting angle seat (33); The support angle seat (33) is located above the driving mechanism (2), and the support angle seat (33) is rotatably arranged on both sides of each single section (31), and the support hinge frame (32) is arranged inside the single section (31); A rotation locking mechanism (4) is provided at the bottom of the support angle seat (33), and the rotation locking mechanism (4) comprises a rotation pin (41) and a rotation-out torsion spring (42), wherein the rotation pin (41) passes through the rotation axis of the support angle seat (33), and the rotation-out torsion spring (42) is located between the rotation pin (41) and the support angle seat (33); A support carrier plate (34) is provided between each two of the support hinge frames (32), one end of the bottom of the support hinge frame (32) is rotatably connected to the support carrier plate (34), a trigger locking assembly (35) is provided on the support carrier plate (34), and the other end of the bottom of the support hinge frame (32) is triggered after passing over the trigger locking assembly (35).

2. A platform lifting and locking device according to claim 1, characterized in that: The driving mechanism (2) comprises a hydraulic cylinder (21), the hydraulic cylinder (21) being arranged corresponding to the supporting angle seat (33), the hydraulic cylinder (21) being located above the drilling platform base (1), and the output shaft of the hydraulic cylinder (21) being provided with a polygonal frustum (22).

3. A platform lifting and locking device according to claim 1, characterized in that: The single section (31) comprises an upper mounting plate (311) and a lower mounting plate (312); the support hinge frame (32), the support carrier plate (34) and the trigger locking assembly (35) are all located between the upper mounting plate (311) and the lower mounting plate (312); and the support angle seat (33) is located on both sides of the upper mounting plate (311).

4. A platform lifting and locking device according to claim 3, characterized in that: The support hinge frame (32) comprises a first scissor arm (321) and a second scissor arm (322), each group of the first scissor arms (321) and the second scissor arms (322) being mutually crossed and connected in rotation in the middle, the first scissor arm (321) at the top of the support hinge frame (32) being connected in rotation with the upper mounting plate (311) at a fixed point, the first scissor arm (321) at the bottom of the support hinge frame (32) being connected in rotation with the lower mounting plate (312) at a fixed point, the top of the first scissor arm (321) in the middle of the support hinge frame (32) being connected in rotation with the upper and lower surfaces of the support carrier plate (34) corresponding to the top respectively, and a locking assembly (5) is provided on the lower mounting plate (312), the locking assembly (5) being located at the bottom of the second scissor arm (322) to limit the movement of the second scissor arm (322).

5. A platform lifting and locking device according to claim 2, characterized in that: The support angle seat (33) is provided with a polygonal groove (331), and the polygonal groove (331) is arranged corresponding to the polygonal cone (22). A receiving groove (332) is provided on one side of the support angle seat (33), and the rotating pin (41) is arranged between the support angle seat (33) and the receiving groove (332). A baffle (333) is provided on one side of the receiving groove (332), and the baffle (333) limits the rotation angle of the support angle seat (33).

6. A platform lifting and locking device according to claim 4, characterized in that: The trigger locking assembly (35) comprises an adjusting support plate (351), wherein the adjusting support plate (351) corresponds to the second scissor arm (322), a concave trigger wedge platform (352) is arranged on the upper surface of the adjusting support plate (351) near the first scissor arm (321), a tilting rod (353) is arranged on one side inside the adjusting support plate (351), the concave trigger wedge platform (352) is connected to one end of the tilting rod (353), and an upper concave locking groove (354) is arranged on the other end of the tilting rod (353), and the upper concave locking groove (354) is located at a position of the lower surface of the adjusting support plate (351) away from the first scissor arm (321), and a compression spring (355) is arranged on the top of the upper concave locking groove (354), and the other end of the compression spring (355) is connected to the inside of the adjusting support plate (351).

7. A platform lifting and locking device according to claim 6, characterized in that: A movable locking wedge (356) is provided on one side of the tilting rod (353) close to the first scissor arm (321); one side of the bottom of the movable locking wedge (356) extends to the bottom of the adjustment support plate (351); the movable locking wedge (356) is slidably arranged up and down relative to the tilting rod (353); an opening is provided above the adjustment support plate (351), and the movable locking wedge (356) extends upward from the opening.

8. A platform lifting and locking device according to claim 4, characterized in that: The locking assembly (5) comprises an active buckle (51) and a locking claw (52); the active buckle (51) is rotatably arranged on the outside of the lower mounting plate (312); the locking claw (52) is arranged at the bottom of the second scissor arm (322) at the bottom layer in the single section (31); the locking claw (52) is extended outward, and the active buckle (51) is used to engage with the locking claw (52).

9. A platform lifting and locking device according to claim 8, characterized in that: The locking assembly (5) further comprises an upper torsion spring (53) and an unlocking interference contact (54); the upper torsion spring (53) is arranged at the rotation point between the movable buckle (51) and the lower mounting plate (312); the unlocking interference contact (54) is located on the lower mounting plate (312); and the unlocking interference contact (54) is arranged in interference with the movable buckle (51).

10. A method for lifting and locking a lightweight drilling rig platform, characterized in that: A platform lifting and locking device as described in any one of claims 1 to 9 is used.

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