A support positioning device for elevator installation

Abstract

The application discloses a support positioning device for elevator installation, and particularly relates to the technical field of elevator installation support positioning, which comprises an elevator shaft mouth, the inside of the elevator shaft mouth is provided with a positioning assembly for positioning and installing an elevator car; the positioning assembly comprises a positioning seat installed in the inside of the elevator shaft mouth for supporting the elevator car, the outside of the positioning seat is respectively provided with a plurality of positioning arc plates and a plurality of support arms, the plurality of positioning arc plates correspond to four corner positions in the elevator shaft mouth respectively, and one end of the positioning arc plate is provided with a plurality of support blocks which abut against the corner positions of the elevator shaft mouth; the support arms are aligned with the corners in the elevator shaft by rotating the positioning seat, the support blocks with flexible pads at the end portions are used to realize initial positioning and stable support, and the flexible pads on the support blocks can automatically deform after being pressed, fill the microscopic unevenness of the contact surface, and ensure that the corners of the shaft wall form close and complete contact.

Description

Technical Field

[0001] This invention relates to the field of elevator installation support and positioning technology, and specifically to a support and positioning device for elevator installation. Background Technology

[0002] In elevator installation projects, the installation of the elevator car within the elevator shaft is one of the core procedures. The support and positioning device, as a key auxiliary equipment in this process, plays a crucial role in providing stable support for the positioning seat, calibrating its centering reference within the shaft, and assisting in the precise placement of the car. This directly determines the subsequent installation accuracy of the elevator car (such as side panel assembly and door operator docking) and the stability of the elevator after operation (such as preventing uneven loading of the car and abnormal wear of the guide rails). Existing support and positioning devices typically consist of a positioning seat and several supporting components. During operation, the positioning seat must be placed at the bottom of the elevator shaft and manually adjusted... The entire support component is designed so that its end abuts against the shaft wall or corner to provide initial support. Subsequently, the elevator car is hoisted and placed on the positioning seat. However, the adjustment range and adaptability of its support component are often insufficient, making it difficult to effectively cope with the problems of inconsistent shaft opening dimensions or non-standard corner angles caused by construction errors. This often results in insufficient contact and unstable engagement between the support end and the shaft wall, which can easily lead to local suspension. It is difficult to ensure that the positioning seat is accurately centered in the shaft, which will directly transmit the initial deviation to the subsequently installed car and affect the accuracy of the elevator car installation position. Summary of the Invention

[0003] The purpose of this invention is to provide a support and positioning device for elevator installation, so as to solve the above-mentioned shortcomings in the technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a support and positioning device for elevator installation, comprising an elevator shaft, wherein the interior of the elevator shaft is provided with a positioning component for positioning and installing the elevator car;

[0005] The positioning component includes a positioning seat installed inside the elevator shaft for supporting the elevator car. Several positioning arc plates and several support arms are respectively installed on the outside of the positioning seat. The positioning arc plates correspond to the four corners inside the elevator shaft. Several support blocks are installed at one end of the positioning arc plates to abut against the corners of the elevator shaft. The several support blocks are combined to form a semi-circular structure. A connecting platform is fixedly connected to the bottom of the positioning seat. Positioning pads that engage with the bottom wall of the elevator shaft are installed on the connecting platform and the bottom of the positioning seat.

[0006] The positioning seat is provided with an arm adjustment assembly on the outside that drives the support arm to adjust in multiple dimensions, which is used to keep the positioning seat relatively centered inside the elevator shaft.

[0007] One side of the support arm is provided with an independent adjustment component that allows for the independent disassembly of several support blocks;

[0008] The positioning seat and the connecting platform are provided with a synchronization component for driving several positioning arc plates to move relative to or towards each other, and simultaneously pushing the positioning soft pad to move.

[0009] The positioning seat is equipped with an angle adjustment component that drives the positioning arc plate to tilt and fit against the elevator car.

[0010] Preferably, the support arm adjustment assembly includes a mounting base installed outside the positioning seat, and one end of the mounting base has a pin hole for inserting the support arm. An outer threaded sleeve is sleeved on the outside of the support arm. An inner threaded sleeve is fixedly sleeved on one end of the mounting base and screwed to the outer threaded sleeve. A limit ring is fixedly connected inside the pin hole, and the limit ring is movably sleeved on the outside of the support arm. A plurality of side plates are fixedly connected to one end of the limit ring, and a locking frame is installed on one end of the side plates. An abutment groove for inserting the locking frame is opened inside the outer threaded sleeve, and the abutment groove and the locking frame maintain a slope fit.

[0011] Preferably, the independent adjustment component includes a snap-fit ​​block fixedly connected to the bottom of the support block, a snap-fit ​​groove for inserting and removing the snap-fit ​​block is provided on the side of the support arm near the support block, an adjustment bolt is provided on one side of the support arm, and a threaded hole for the adjustment bolt to be screwed into is provided between the support arm and the snap-fit ​​block.

[0012] Preferably, the synchronization component includes a sliding groove formed on the outside of the positioning seat and communicating with its interior. A slider is slidably connected inside the sliding groove, and the slider is used to adjust the distance between the positioning arc plate and the elevator car. A connecting plate is rotatably connected inside the positioning seat. A servo motor is fixedly connected to the top center of the connecting plate, and the servo motor is used to drive the connecting plate to rotate. A guide column is installed at the top of the slider. A guide rail groove is formed at the top of the connecting plate for guiding the guide column to move. The guide rail groove is designed with a curved arc structure. A pushing component is provided outside the servo motor to push the positioning pad to move.

[0013] Preferably, the angle adjustment assembly includes a support frame fixedly connected to one end of the slider, a fitting pad fixedly connected to the side of the positioning arc plate near the elevator car, and the positioning arc plate is configured as an L-shaped structure. A concentric groove for inserting the bottom of the fitting pad is opened through one side of the support frame. A limiting ring is fixedly connected to the side of the positioning arc plate near the support frame, and the limiting ring is movably connected to the top of the support frame. A limiting shaft is connected between the limiting ring and the support frame. An auxiliary bracket is fixedly connected to the top of the support frame. A hinge rod is hinged to the bottom of the positioning arc plate. An offset groove for inserting the hinge rod is opened at the top of the auxiliary bracket. One end of the hinge rod extends to the outside of the offset groove and is hinged to a hinge crossbar. An electric push rod is fixedly connected to one side of the auxiliary bracket, and the telescopic end of the electric push rod is fixedly sleeved with one side of the hinge crossbar.

[0014] Preferably, the pushing assembly includes a pushing groove fixedly connected to the top of the positioning pad and a pushing disk sleeved outside the output end of the servo motor. The top of the connecting platform is provided with a pushing groove for guiding the positioning pad and the extrusion plate to move. The bottom end of the pushing disk is fixedly connected with a crescent-shaped pressing plate, and the crescent-shaped pressing plate and the extrusion plate maintain a slope fit.

[0015] Preferably, a centering plate is fixedly connected to the bottom end of the positioning seat, and the centering plate is movably sleeved outside the output end of the servo motor. Several stabilizing rods are fixedly connected to the outside of the centering plate, and the top ends of the stabilizing rods are movably embedded outside the pushing plate.

[0016] Preferably, a plurality of displacement plates are fixedly connected to the outside of the extrusion plate, and the plurality of displacement plates are symmetrically arranged on the outside of the extrusion plate. The inside of the pushing groove is provided with an installation groove for the displacement plates to be inserted, and a return spring is connected between the displacement plates and the installation groove.

[0017] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0018] This invention aligns the support arm with the inner corner of the elevator shaft by rotating the positioning seat. Initial positioning and stable support are achieved by using a support block with a flexible pad at the end. The flexible pad on the support block can automatically deform under pressure to fill the microscopic unevenness of the contact surface, ensuring a tight and complete contact with the corner of the shaft wall. This transforms rigid point or line contact into flexible surface contact. This adaptive interlocking capability eliminates the problems of local suspension and stress concentration caused by uneven shaft walls, greatly enhancing the stability and safety of the support during elevator car installation, while protecting the inner wall structure of the shaft.

[0019] This invention achieves the limitation and fine-tuning of the landing car by having the inclined positioning arc plate at the top of the positioning seat fit against the arc surface of the outer wall of the car. The inclined positioning arc plate forms a guiding contact with the outer wall of the car, which can effectively limit the car (prevent the car from lateral displacement) through the arc surface fit, and can also automatically correct the slight position deviation of the car by means of force balance, so that the car can be accurately placed in the preset installation position, further improving the support and positioning of the positioning seat for the car.

[0020] This invention uses a servo motor to drive the connecting plate to rotate inside the positioning seat, which in turn drives the circumferentially distributed guide rail grooves to rotate. The guide rail grooves, with the help of the inclined structure, push the guide column to move synchronously in opposite directions in the radial direction, thereby driving the slider to slide smoothly along the preset slide groove. Finally, the four sets of positioning arc plates move closer to the outer wall of the elevator car and make tight contact, so as to achieve symmetrical clamping and positioning of the car, avoid the car from shifting during subsequent angle adjustment, and ensure the continuity and reliability of the entire support and positioning process.

[0021] This invention utilizes the synergistic effect of an electric push rod and a hinged structure to achieve flexible and precise tilt angle adjustment of the positioning arc plate. It can adaptively adapt to the actual curvature of the elevator car's outer wall, ensuring the contact direction between the positioning arc plate and the car's outer wall better matches the car structure, further reducing positioning errors. Simultaneously, the synergistic effect of the elastic fitting pad and angle fine-tuning achieves flexible application and uniform distribution of clamping force. With angle adjustment, the preload smoothly increases and fully covers the contact area, greatly enhancing the static friction and overall stability of the clamping force.

[0022] This invention features a convenient operation through the constraint release mechanism of the support arm, which allows for quick entry into the spacing and angle adjustment state. Spacing adjustment enables the support block to steadily approach the well corner, avoiding insecure support due to spacing deviation. Secondary angle fine-tuning can further correct the angle deviation between the support block and the corner, making the fit between the support block and the corner wall more precise, reducing the problem of local suspension or uneven force, and providing a more reliable support foundation for the positioning seat.

[0023] The present invention allows for flexible adjustment of the number of supports through the quick disassembly design of the support blocks. Combined with the angle self-adaptation capability of the remaining support blocks, it can accurately adapt to different shapes of elevator shaft corners, ensuring that each support block fits tightly with the corner wall of the shaft and is subjected to balanced force, effectively shortening the overall debugging time of the elevator car support positioning.

[0024] This invention uses a driving mechanism to push the positioning pad downwards, so that the raised structure at its bottom precisely engages with the recessed structure at the bottom of the elevator shaft, generating pre-tightening force and static friction force, thereby locking the bottom of the positioning seat. The positioning pad and the bottom of the shaft are engaged through the convex and concave structure, and combined with the continuous downward pressure, it is converted into huge static friction force, thus firmly anchoring the positioning seat to the bottom of the shaft.

[0025] This invention converts circular motion into linear motion by pressing down the inclined surface of the rotating crescent-shaped pressure plate onto the extrusion plate. Guided by a stabilizing rod, it ensures smooth and unbiased transmission of downward pressure. The entire process is carried out under the rigid guidance of the stabilizing rod, avoiding jamming and uneven loading. This makes the downward movement and engagement of the positioning pad precise and controllable, further improving the stability of the entire support positioning during installation. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 This is a schematic diagram of the first assembly state of the support block and the elevator shaft opening of the present invention;

[0028] Figure 2 This is an exploded view of the positioning component of the present invention;

[0029] Figure 3 This is a structural schematic diagram of the second assembly state of the support block and the elevator shaft opening of the present invention;

[0030] Figure 4 This is a partial cross-sectional view of the mounting base of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged view of section A in the image;

[0032] Figure 6 This is a schematic diagram of the assembly of the crescent-shaped push plate and the extrusion plate of the present invention;

[0033] Figure 7 This is a schematic diagram of the extrusion plate of the present invention;

[0034] Figure 8 For the present invention Figure 7 Enlarged view of section B in the image;

[0035] Figure 9 This is a schematic diagram of the adjustment structure between the positioning arc plate and the auxiliary support of the present invention.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Elevator shaft opening;

[0038] 2. Positioning component; 21. Positioning seat; 22. Support arm; 23. Support block; 24. Positioning arc plate; 25. Connecting platform; 26. Positioning pad;

[0039] 3. Outrigger adjustment assembly; 31. Mounting base; 32. Pin hole; 33. External threaded sleeve; 34. Internal threaded sleeve; 35. Limiting ring; 36. Side plate; 37. Locking bracket; 38. Abutment groove;

[0040] 4. Synchronization component; 41. Servo motor; 42. Slide rail; 43. Slider; 44. Guide post; 45. Connecting plate; 46. Guide rail groove;

[0041] 5. Pushing assembly; 51. Pushing plate; 52. Centering plate; 53. Stabilizer bar; 54. Extrusion plate; 55. Crescent-shaped push plate; 56. Mounting slot; 57. Return spring; 58. Displacement plate; 59. Pushing groove;

[0042] 6. Angle adjustment assembly; 61. Support frame; 62. Fitting pad; 63. Shift limiting ring; 64. Restricting shaft column; 65. Concentric groove; 66. Auxiliary bracket; 67. Hinge rod; 68. Offset groove; 69. Hinge crossbar; 601. Electric push rod;

[0043] 7. Independent adjustment component; 71. Snap-fit ​​groove; 72. Snap-fit ​​block; 73. Threaded hole; 74. Adjusting bolt. Detailed Implementation

[0044] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] This invention provides, for example Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The support and positioning device for elevator installation shown includes an elevator shaft 1, and a positioning component 2 for positioning and installing the elevator car is provided inside the elevator shaft 1.

[0046] The positioning component 2 includes a positioning seat 21 installed inside the elevator shaft 1 for supporting the elevator car. Several positioning arc plates 24 and several support arms 22 are respectively installed on the outside of the positioning seat 21. The positioning arc plates 24 correspond to the four corners inside the elevator shaft 1. Several support blocks 23 are installed at one end of each positioning arc plate 24, abutting against the corners of the elevator shaft 1. The support blocks 23 are combined to form a semi-circular structure. A connecting platform 25 is fixedly connected to the bottom of the positioning seat 21. Positioning pads 26 that engage with the bottom wall of the elevator shaft 1 are installed on the connecting platform 25 and the bottom of the positioning seat 21.

[0047] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, there are four support arms 22 and four positioning arc plates 24. Each support arm 22 and each positioning arc plate 24 are staggered outside the positioning seat 21. Each support arm 22 has several support blocks 23 installed on one side, and the number of support blocks 23 is set to five. Therefore, each time a support block 23 is removed, the angle between the remaining support blocks 23 on one side of the support arm 22 and the corner of the elevator shaft 1 is adjusted, so as to adapt to different angles of the elevator shaft 1 for matching use. In addition, the number of support arm adjustment components 3 is the same as the number of support arms 22, ensuring that each support arm 22 can be adjusted independently. Then, the number of independent adjustment components 7 is the same as the number of support blocks 23, ensuring that each support block 23 can be adjusted independently on one side of the support arm 22, which is convenient for adapting the support arm 22 or support block 23 according to the internal conditions of the elevator shaft 1. At the same time, the positioning soft pad 26 installed at the bottom of the positioning seat 21 cannot be adjusted for a second time, while the positioning soft pad 26 at the bottom of the connecting platform 25 can be adjusted for a second time.

[0048] refer to Figure 3 and Figure 4 As shown, the positioning seat 21 is provided with a support arm adjustment assembly 3 on its outside, which drives the support arm 22 to adjust in multiple dimensions. This assembly is used to keep the positioning seat 21 relatively centered inside the elevator shaft 1. The support arm adjustment assembly 3 includes a mounting seat 31 installed on the outside of the positioning seat 21. One end of the mounting seat 31 is provided with a pin hole 32 for the support arm 22 to be inserted. An outer threaded sleeve 33 is sleeved on the outside of the support arm 22. An inner threaded sleeve 34 is fixedly sleeved on one end of the mounting seat 31 and screwed to the outer threaded sleeve 33. A limit ring 35 is fixedly connected inside the pin hole 32 and is movably sleeved on the outside of the support arm 22. Several side plates 36 are fixedly connected to one end of the limit ring 35. A locking frame 37 is installed on one end of the side plate 36. An abutment groove 38 for the locking frame 37 to be inserted is provided inside the outer threaded sleeve 33 and the abutment groove 38 and the locking frame 37 are sloped together.

[0049] refer to Figure 3 and Figure 4 As shown, there are four side plates 36 and four locking frames 37. The locking frames 37 are movably connected to the side plates 36, so that the locking frames 37 can tilt and swing along the outside of the side plates 36. The side of the locking frames 37 near the support arm 22 is made of flexible material, so that the locking frames 37 and the support arm 22 can be engaged.

[0050] refer to Figure 3 , Figure 4 and Figure 5As shown, one side of the support arm 22 is provided with an independent adjustment component 7 for independently disassembling several support blocks 23; the independent adjustment component 7 includes a snap-fit ​​block 72 fixedly connected to the bottom of the support block 23, a snap-fit ​​groove 71 for the snap-fit ​​block 72 to be inserted and removed is provided on the side of the support arm 22 near the support block 23, an adjustment bolt 74 is provided on one side of the support arm 22, and a threaded hole 73 for the adjustment bolt 74 to be screwed into is provided between the support arm 22 and the snap-fit ​​block 72.

[0051] refer to Figure 2 , Figure 6 and Figure 7 As shown, a synchronization assembly 4 is provided between the positioning seat 21 and the connecting platform 25 to drive several positioning arc plates 24 to move relative to or towards each other, and to synchronously push the positioning soft pad 26 to move. The synchronization assembly 4 includes a slide groove 42 that is opened on the outside of the positioning seat 21 and communicates with its interior. A slider 43 is slidably connected inside the slide groove 42, and the slider 43 is used to adjust the distance between the positioning arc plates 24 and the elevator car. A connecting plate 45 is rotatably connected inside the positioning seat 21. A servo motor 41 is fixedly connected to the top center of the connecting platform 25, and the servo motor 41 is used to drive the connecting plate 45 to rotate. A guide column 44 is installed on the top of the slider 43. A guide rail groove 46 is opened on the top of the connecting plate 45 to guide the guide column 44 to move, and the guide rail groove 46 is designed as a curved arc structure. The number of slide grooves 42, guide columns 44, sliders 43 and guide rail grooves 46 is the same as that of the positioning arc plates 24, and the four slide grooves 42 are combined inside the positioning seat 21 to form a cross-shaped structure.

[0052] refer to Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, the servo motor 41 is externally provided with a pushing assembly 5 for moving the positioning pad 26; the pushing assembly 5 includes a pushing groove 59 fixedly connected to the top of the positioning pad 26 and a pushing disk 51 sleeved on the outside of the output end of the servo motor 41; the top of the connecting platform 25 is provided with a pushing groove 59 for guiding the positioning pad 26 and the extrusion plate 54 to move; the bottom end of the pushing disk 51 is fixedly connected with a crescent-shaped pressing plate 55, and the crescent-shaped pressing plate 55 and the extrusion plate 54 maintain a slope fit; the bottom end of the positioning seat 21 is fixedly connected to There is a centering plate 52, which is movably sleeved on the outside of the output end of the servo motor 41. Several stabilizing rods 53 are fixedly connected to the outside of the centering plate 52, and the top of the stabilizing rods 53 is movably embedded in the outside of the push plate 51. Several displacement plates 58 are fixedly connected to the outside of the extrusion plate 54, and the displacement plates 58 are symmetrically arranged on the outside of the extrusion plate 54. The inside of the push groove 59 is provided with a mounting groove 56 for the displacement plates 58 to be inserted. A return spring 57 is connected between the displacement plates 58 and the mounting groove 56.

[0053] refer to Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, the number of positioning pads 26 at the bottom of the connecting platform 25 and the positioning seat 21 are four, and the number of push plate 51, push groove 59, extrusion plate 54, crescent push plate 55 and stabilizing rod 53 are four, and each extrusion plate 54 and each push groove 59 contains four displacement plates 58, return springs 57 and mounting grooves 56.

[0054] refer to Figure 1 , Figure 2 , Figure 3 and Figure 9 As shown, the angle adjustment assembly 6 includes a support frame 61 fixedly connected to one end of the slider 43. A fitting pad 62 is fixedly connected to the side of the positioning arc plate 24 near the elevator car, and the positioning arc plate 24 is configured as an L-shaped structure. A concentric groove 65 is provided through one side of the support frame 61 for the bottom of the fitting pad 62 to be inserted. A limiting ring 63 is fixedly connected to the side of the positioning arc plate 24 near the support frame 61, and the limiting ring 63 is movably connected to the top of the support frame 61. The limiting ring 63 and the support frame 61 are connected to each other. A limiting shaft column 64 is connected between the frames 61. An auxiliary bracket 66 is fixedly connected to the top of the support frame 61. A hinge rod 67 is hinged to the bottom of the positioning arc plate 24. An offset groove 68 is opened at the top of the auxiliary bracket 66 for the hinge rod 67 to be inserted. One end of the hinge rod 67 extends to the outside of the offset groove 68 and is hinged to a hinge crossbar 69. An electric push rod 601 is fixedly connected to one side of the auxiliary bracket 66, and the telescopic end of the electric push rod 601 is fixedly sleeved with one side of the hinge crossbar 69.

[0055] Working principle:

[0056] When using;

[0057] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, when performing support and positioning installation work on the elevator car inside the elevator shaft 1, firstly, the positioning seat 21 is placed inside the elevator shaft 1, and then the positioning seat 21 is rotated so that each set of support arms 22 precisely aligns with the inner corner of the elevator shaft 1. At this time, the support block 23 at the end of the support arm 22 abuts against the inner wall of the corner of the elevator shaft 1. Since the flexible pad is pre-installed on the outside of the support block 23, the flexible pad will adaptively deform after contact, tightly filling the tiny gap between the support block 23 and the corner of the shaft wall, ensuring that the two form a stable interlocking state, avoiding local suspension or sliding. Through the synergistic effect of the support arm 22 and the support block 23, the positioning seat 21 can be pre-positioned in the elevator shaft 1: on the one hand, it can accurately calibrate the position of the positioning seat 21, so that it is always in a relatively centered state in the elevator shaft 1, providing a symmetrical reference for subsequent car installation; on the other hand, it can enhance the placement stability of the positioning seat 21 in the shaft, preventing positional displacement caused by construction vibration. Subsequently, The elevator car is hoisted onto the top surface of the positioning seat 21. At this time, the outer wall of the car will form an inclined contact with the four sets of positioning arc plates 24 pre-set on the top of the positioning seat 21. Through the contact between the arc surface and the outer wall of the car, the car can be limited, and the car can be repositioned through the force balance of the inclined contact. This further corrects any minor positional deviations. Finally, the positioning seat 21 provides a stable support foundation and accurate positioning benchmark for the installation process of the elevator car through the dual guarantee of "pre-positioning and secondary positioning", ensuring subsequent assembly operations. By keeping the support block 23 in contact with the corner of the elevator shaft 1, the corner of the elevator shaft 1 provides two mutually perpendicular force surfaces. The support arm 22 and the support block 23 are pressed tightly against the corner, which is equivalent to using the frame of the elevator shaft 1 itself for fixation, forming "three-point positioning". This improves the stability of the positioning seat 21 inside the elevator shaft 1 and ensures that the positioning seat 21 provides stable positioning support for the installation of the elevator car.

[0058] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, when it is necessary to adjust the contact distance and angle between the support block 23 and the corner of the elevator shaft 1 to optimize the fitting effect, the first step is to quickly disassemble and adapt the angle of the support block 23: rotate the adjusting bolt 74 to form a helical engagement with the threaded hole 73 on one side of the locking block 72, drive the adjusting bolt 74 to move horizontally along the threaded hole 73 and gradually disengage from the locking block 72. This action can release the constraint of the locking block 72 in the locking groove 71, thereby allowing the target support block 23 to be disassembled from one side of the support arm 22. After a single support block 23 is disassembled, the remaining support blocks 23 can adaptively adjust their angles under the support of the support arm 22, ensuring that the contact surface of the remaining support blocks 23 is completely fitted with the corner wall of the elevator shaft 1 and the force is evenly distributed. This effectively improves the adaptability of the positioning seat 21 to different shaft corner shapes and significantly shortens the elevator car support positioning time. During the debugging period, the spacing and angle of the support arm 22 are adjusted a second time: the outer threaded sleeve 33 is rotated to maintain a helical fit with the inner threaded sleeve 34, causing the outer threaded sleeve 33 to move horizontally along the inner threaded sleeve 34. At this time, the distance between the contact groove 38 on the inner wall of the outer threaded sleeve 33 and the outer wall of the locking frame 37 gradually increases. Under its own elasticity, the locking frame 37 swings back to its original position along one end of the side plate 36, and the protrusion and recessed interlocking structure between it and the support arm 22 is released from constraint, realizing the rapid separation of the support arm 22 and the locking frame 37. The support arm 22 is pushed to move along the pin hole 32, which can drive the support block 23 to move closer to the corner of the elevator shaft 1, gradually shortening the distance between the two. At the same time, the support arm 22 can rotate synchronously during the movement within the mounting base 31, realizing a second fine adjustment of the angle between the support block 23 and the corner of the elevator shaft 1, further optimizing the fitting accuracy.

[0059] refer to Figure 3 , Figure 4 and Figure 5 As shown, after the support arm 22 is adjusted to the target position, the outer threaded sleeve 33 is rotated in the opposite direction, causing it to move deeper along the inner threaded sleeve 34 until the contact groove 38 is in close contact with the outer wall of the locking frame 37. This contact force pushes the locking frame 37 toward the support arm 22, causing the protruding structure of the locking frame 37 to re-engage with the recessed structure of the support arm 22. At this time, the elasticity of the locking frame 37 itself will generate a continuous preload force, which restricts the displacement of the support arm 22 in the mounting base 31. More importantly, the preload force can be converted into static friction force on the contact surface between the locking frame 37 and the support arm 22, completely preventing the relative sliding of the protruding and recessed structures of the two, and ultimately significantly enhancing the fixed stability of the support arm 22 in the mounting base 31, providing reliable support for the subsequent placement and positioning of the elevator car.

[0060] refer to Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, when it is necessary to maintain stable support for the elevator car at the top of the positioning seat 21, and the overall operation is completed in two coordinated steps of "initial clamping and positioning, fine angle adjustment and pre-tightening reinforcement", the servo motor 41 is started, and its drive end drives the connecting plate 45 to rotate smoothly inside the positioning seat 21; the connecting plate 45 simultaneously drives the four circumferentially distributed guide rail grooves 46 to rotate. As the guide rail grooves 46 rotate, their inner walls gradually come into contact with the outer walls of the four guide columns 44, and the inclined structure of the guide rail grooves 46 pushes the four guide columns 44. The guide column 44 moves synchronously towards each other in the radial direction, and the movement of the guide column 44 synchronously drives the four sliders 43 connected to it, so that the sliders 43 slide smoothly inside the four pre-set sliding grooves 42 of the positioning seat 21; finally, under the drive of the sliders 43, the four positioning arc plates 24 gradually approach the outer wall of the elevator car along the outside of the positioning seat 21 until they are in close contact with the outer wall of the car. Through the symmetrical clamping of the four sets of positioning arc plates 24, the positioning seat 21 initially achieves stable positioning support for the elevator car, and avoids horizontal displacement of the car in subsequent adjustments.

[0061] refer to Figure 1 , Figure 2 , Figure 3 and Figure 9As shown, after the positioning arc plate 24 initially contacts the outer wall of the elevator car, the electric push rod 601 is activated, and its telescopic end extends upward, driving the hinge crossbar 69 to rise upward along the top of the auxiliary support 66. The lifting of the hinge crossbar 69 simultaneously applies an upward pulling force to the hinge rod 67, causing the hinge rod 67 to slide upward along the interior of the offset groove 68. The upward movement of the hinge rod 67 causes the positioning arc plate 24 connected to its bottom end to rise simultaneously. During the movement, the outer side of the positioning arc plate 24 moves along the inner wall of the concentric groove 65 to ensure a stable and non-offset movement trajectory. Then, the positioning arc plate 24, through the cooperation of the limiting column 64 and the limiting ring 63, slowly tilts and swings along the top of the support frame 61. During the swing, one end of the positioning arc plate 24 pushes the hinge rod 67 to move slightly, while the top of the hinge rod 67 adaptively adjusts its angle along the interior of the hinge crossbar 69, ultimately achieving the connection between the hinge rod 67 and the positioning arc plate 24. The precise adjustment of the included angle involves the fitting pad 62 on the inner side of the positioning arc plate 24 first forming a local compression with the outer wall of the elevator car. The fitting pad 62 generates an initial pre-tightening force due to its own elasticity, which initially enhances the fit. As the positioning arc plate 24 continues to tilt and swing, it causes the contact angle between the fitting pad 62 and the outer wall of the elevator car to gradually change. On the one hand, the compression force of the part of the fitting pad 62 that has been in contact gradually increases with the angle adjustment. On the other hand, the part of the fitting pad 62 that has not been in contact slowly fits with the outer wall of the car until a tight contact is achieved in the entire area. Through this series of angle adjustments and the elastic pre-tightening of the fitting pad 62, the clamping position between the positioning arc plate 24 and the elevator car is more in line with the curvature of the outer wall of the car. This not only avoids damage to the car caused by local stress concentration, but also further enhances the support stability of the positioning seat 21 for the elevator car through the pre-tightening force of the fitting pad 62, providing a reliable benchmark for the subsequent assembly operation of the elevator car.

[0062] refer to Figure 2 , Figure 3 Figure 6 and Figure 7 As shown, when the positioning pad 26 is deformed by the squeezing of the inner wall of the elevator shaft 1, if it is necessary to adjust the distance between the positioning arc plate 24 and the elevator car simultaneously, the stability of the positioning seat 21 can be further enhanced by the following linkage mechanism: Start the servo motor 41, and its drive end drives the push plate 51 to rotate synchronously between the connecting platform 25 and the positioning seat 21. When the push plate 51 rotates, its bottom slides along the outer wall of the four stabilizing rods 53 and is guided by them. The stabilizing rods 53 provide rigid support for the push plate 51 to ensure that it rotates without deviation or shaking. As the push plate 51 rotates, the four crescent-shaped push plates 55 distributed in the circumference move in a circular motion along the top of the connecting platform 25. Through the slope structure, the top of the four extrusion plates 54 forms a slope fit. The inclined surface of the crescent-shaped push plate 55 gradually presses down on the extrusion plate 54, pushing the extrusion plate 54 to move smoothly down along the inside of the four push grooves 59. During the downward movement of the extrusion plate 54, the positioning pad 26 is pushed down simultaneously.

[0063] refer to Figure 2 , Figure 3 Figure 6 and Figure 7 As shown, after the positioning pad 26 is compressed, the raised structure at its bottom precisely engages with the recessed structure on the bottom wall of the elevator shaft 1, forming a secondary pre-tightening force. This pre-tightening force is converted into static friction between the positioning pad 26 and the bottom wall of the shaft. Even under construction vibration or slight external force, the friction can effectively prevent the relative sliding of the raised and recessed parts, completely avoiding the loosening of the positioning seat 21 and providing a stable bottom support for the elevator car installation. At the same time, the pressing plate 54 moves down, causing the displacement plate 58 to sink synchronously along the inside of the mounting groove 56, compressing the return spring 57 between the displacement plate 58 and the mounting groove 56. The return spring 57 generates an upward reaction force due to its own elasticity, continuously pushing the displacement plate 58, thereby ensuring that the pressing plate 54 is always in close contact with the inclined surface of the crescent-shaped pressing plate 55, avoiding compression failure due to gaps, and ultimately ensuring that the positioning pad 26 forms a continuous and reliable engagement and fixation with the bottom wall of the elevator shaft 1 under the stable pushing force of the pressing plate 54.

[0064] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A support positioning device for elevator installation, comprising an elevator shaft opening, characterized by: The interior of the elevator shaft mouth is provided with a positioning assembly for positioning and mounting the elevator car; The positioning assembly comprises a positioning seat mounted in the interior of the elevator shaft mouth for supporting the elevator car, the outer part of the positioning seat is respectively provided with a plurality of positioning arc plates and a plurality of supporting arms, the plurality of positioning arc plates respectively correspond to four corners in the interior of the elevator shaft mouth, one end of the positioning arc plate is provided with a plurality of supporting blocks abutting against the corners of the elevator shaft mouth, and the plurality of supporting blocks are combined to form a semicircular structure, the bottom of the positioning seat is fixedly connected with a connecting table, and the bottom of the connecting table and the positioning seat is provided with a positioning soft pad abutting against the bottom wall of the elevator shaft mouth; The outer part of the positioning seat is provided with a supporting arm adjusting assembly for driving the supporting arms to adjust in multiple dimensions, so as to keep the positioning seat relatively centered in the interior of the elevator shaft mouth; One side of the supporting arm is provided with an independent adjusting assembly for independently disassembling the plurality of supporting blocks; The positioning seat and the connecting table are provided with a same adjusting assembly for driving the plurality of positioning arc plates to move relatively or oppositely and synchronously pushing the positioning soft pad to move; the same adjusting assembly comprises a sliding groove opened in the outer part of the positioning seat and communicated with the interior thereof, the interior of the sliding groove is slidably connected with a sliding block, the sliding block is used for driving the positioning arc plates to adjust the spacing between the positioning arc plates and the elevator car, the interior of the positioning seat is rotatably connected with a connecting disc, the top middle part of the connecting table is fixedly connected with a servo motor, the servo motor is used for driving the connecting disc to rotate, the top end of the sliding block is mounted with a guide column, the top end of the connecting disc is opened with a guide rail groove for guiding the guide column to move, the guide rail groove is provided in a curved arc structure, and the outer part of the servo motor is provided with a pushing and moving assembly for pushing the positioning soft pad to move; The outer part of the positioning seat is provided with an angle adjusting assembly for driving the positioning arc plates to be obliquely attached to the elevator car; the angle adjusting assembly comprises a supporting frame fixedly connected to one end of the sliding block, the positioning arc plate is fixedly connected with an embedded pad on the side close to the elevator car, the positioning arc plate is provided in an L-shaped structure, a concentric groove is formed through one side of the supporting frame for the embedded pad to be inserted into the bottom of the concentric groove, a limiting ring is fixedly connected to the side of the positioning arc plate close to the supporting frame, the limiting ring is movably connected to the top of the supporting frame, a limiting shaft column is connected between the limiting ring and the supporting frame, an auxiliary supporting frame is fixedly connected to the top of the supporting frame, a hinged rod is hinged to the bottom of the positioning arc plate, an offset slot is formed in the top end of the auxiliary supporting frame for the hinged rod to be inserted into the offset slot, one end of the hinged rod extends to the outside of the offset slot and is hinged with a hinged cross frame, an electric push rod is fixedly connected to one side of the auxiliary supporting frame, and the telescopic end of the electric push rod is fixedly sleeved with one side of the hinged cross frame; The pushing and moving assembly comprises a pushing and moving groove fixedly connected to the top end of the positioning soft pad and a pushing and moving disc sleeved outside the output end of the servo motor, the top end of the connecting table is opened with a pushing and moving groove for guiding the positioning soft pad and the extrusion plate to move, the bottom end of the pushing and moving disc is fixedly connected with a crescent pushing plate, and the crescent pushing plate and the extrusion plate are kept in slope cooperation.

2. A support positioning device for elevator installation according to claim 1, characterized in that: The support arm adjusting assembly comprises a mounting base mounted outside the positioning seat, one end of the mounting base is provided with a plug hole for inserting the support arm, the outer part of the support arm is sleeved with an outer sleeve, one end of the mounting base is fixedly sleeved with an inner sleeve which is screwed with the outer sleeve, the inner part of the plug hole is fixedly connected with a limiting ring which is movably sleeved outside the support arm, one end of the limiting ring is fixedly connected with a plurality of side plates, one end of the side plate is provided with a locking frame, the inner part of the outer sleeve is provided with a resisting groove for inserting the locking frame, and the resisting groove and the locking frame are kept slope cooperation.

3. A support positioning device for elevator installation according to claim 1, characterized in that: The independent adjusting assembly comprises a clamping block fixedly connected to the bottom of the supporting block, the side of the supporting arm close to the supporting block is provided with a clamping groove for inserting and pulling out the clamping block, one side of the supporting arm is provided with an adjusting bolt, and the supporting arm and the clamping block are jointly provided with a threaded hole for screwing the adjusting bolt.

4. A support positioning device for elevator installation according to claim 1, characterized in that: The bottom end of the positioning seat is fixedly connected with a centering disc which is movably sleeved outside the output end of the servo motor, the outer part of the centering disc is fixedly connected with a plurality of stabilizing rods, and the top end of the stabilizing rod is movably embedded outside the push disc.

5. A support positioning device for elevator installation according to claim 4, characterized in that: The outer part of the extrusion plate is fixedly connected with a plurality of displacement plates which are symmetrically arranged outside the extrusion plate, the inner part of the push groove is provided with an installation groove for inserting the displacement plate, and the displacement plate and the installation groove are jointly connected with a return spring.

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