Lifting type meter changing platform

Abstract

The utility model relates to the technical field of power construction, in particular to a lifting type meter changing platform which comprises a mounting frame, a lifting mechanism and a lifting mechanism. The bottom moving frame slides on the mounting frame, and universal wheels are mounted at the bottom of the bottom moving frame; a protective fence is arranged in the circumferential direction of the top operation platform; the cross bridging lifting mechanism is connected with the mounting frame and the top operation platform; the adjusting mechanism is arranged on the mounting frame, connected with the bottom moving frame and used for adjusting the height of the bottom moving frame; the supporting legs are all arranged on the mounting frame and make contact with the ground when the bottom moving frame is folded; the side supporting legs are horizontally arranged in the middles of the supporting legs, wall face abutting plates are arranged at the ends of the side supporting legs, and extension mechanisms used for adjusting the length are arranged. The method has the effect of improving the applicability.

Description

Technical Field

[0001] This application relates to the technical field of power construction, and in particular to a lifting meter replacement platform. Background Technology

[0002] With the intelligent upgrading of urban infrastructure, the need for replacement and maintenance of metering instruments such as water meters and electricity meters is becoming increasingly frequent. Traditional manual meter replacement work relies on ladders or scaffolding, which poses a risk of falls from heights and is inefficient. Especially in narrow corridors or complex terrain, there is an urgent need for specialized lifting platforms to assist operators in completing meter replacement tasks safely and efficiently. Mechanized meter replacement platforms have become a key technological equipment for improving the quality of public utility services and operational safety.

[0003] Existing meter-changing platforms mainly fall into two categories: one is a simple folding ladder-type personnel platform, which only provides basic height adjustment and lacks a stable support structure; the other is a large hydraulic lifting platform, such as Chinese patent CN102786012A, which discloses a large-tonnage lifting platform, including a hydraulic system, electrical system, base, platform, and lifting device. Although it has good stability, it is bulky, inconvenient to move, and difficult to adapt to the narrow spaces of residential buildings. Some improved platforms use fixed-angle support legs, but they cannot be flexibly adjusted according to the distance to the wall on site, and most of them do not have a dedicated anti-tipping structure for the wall, making them prone to swaying during operation.

[0004] Current technology has significant shortcomings: the moving wheels lack rigid parking support, making the platform prone to displacement during lifting and lowering; the large lifting mechanism still occupies space when folded, making it unable to pass through narrow corridors. Utility Model Content

[0005] This application provides a lifting-type meter changing platform, which can at least partially solve the above-mentioned technical problems.

[0006] This application provides a lifting-type meter changing platform, which adopts the following technical solution:

[0007] A lifting-type meter changing platform, comprising:

[0008] The mounting bracket forms the main body for mounting components;

[0009] The bottom movable frame slides on the mounting bracket and is equipped with casters at the bottom;

[0010] The top working platform is equipped with protective railings around its perimeter.

[0011] A scissor-braced lifting mechanism connects the mounting frame to the top working platform;

[0012] An adjustment mechanism, disposed on the mounting frame and connected to the bottom movable frame, is used to adjust the height of the bottom movable frame;

[0013] Multiple support legs are provided, all mounted on the mounting frame, and contact the ground when the bottom movable frame is retracted;

[0014] The side support leg is horizontally positioned in the middle of the support leg, with a wall-mounted abutment plate at the end and an extension mechanism for adjusting its length.

[0015] By adopting the above technical solution, the platform is pushed into narrow stairwells using casters. The adjustment mechanism raises the bottom mobile frame, allowing the support legs to contact the ground and the side support legs to unfold. The extension mechanism then presses the wall-mounted abutment plate against the wall. The scissor-support lifting mechanism raises the work platform, and the protective railing unfolds for protection. The lifting and switching design of the bottom mobile frame and support legs ensures that the platform width only needs to meet the passageway width (≤0.8 meters) when moving. During operation, the support legs extend to stabilize the base, solving the industry pain point that large equipment cannot enter narrow spaces. The three-dimensional stable system formed by the support legs supporting the ground, the side support legs abutting against the wall, and the frame being raised off the ground improves the anti-tilting ability compared to the single hydraulic support in existing technologies. The side support legs reduce the possibility of platform displacement. It occupies little space, can be used in narrow spaces, and can pass through narrow stairwells, improving its applicability.

[0016] Optionally, the side support leg is rotatably mounted on the support leg, and the side support leg is provided with an angle fixing mechanism, which is connected to the support leg.

[0017] By adopting the above technical solution and setting the angle fixing mechanism, it can be folded up when not in use to reduce space occupation, and can be unfolded when in use to improve convenience.

[0018] Optionally, the angle fixing mechanism includes: a fixed shaft, a connecting block, and a locking block. The fixed shaft is disposed on the support leg. The connecting block is disposed at the end of the support leg away from the wall abutment plate. The connecting block has a rotating hole that is adapted to the fixed shaft. The connecting block is rotatably and slidably connected to the fixed shaft through the rotating hole. The locking block is disposed on the support leg. The connecting block has a locking groove that cooperates with the locking block. When the connecting block is close to the support leg, the locking block engages with the locking groove.

[0019] By adopting the above technical solution, the push-pull connecting block slides along the fixed axis, disengages from the snap-fit ​​block, and rotates the side support leg to the target angle; press the connecting block so that the snap-fit ​​block is embedded in the snap-fit ​​groove; and the angle is fixed. With the above settings, the operation is simple, the side support leg is easy to store and unfold, and the convenience is improved.

[0020] Optionally, the angle fixing mechanism further includes an abutment block disposed on the connecting block, the abutment block abutting against the support leg, and the abutment surface being perpendicular to the snap-fit ​​surface of the snap-fit ​​block.

[0021] By adopting the above technical solution, the force on the fixed shaft can be reduced by the setting of the abutment block, and the force shared by the abutment block is directly transferred to the support leg, thereby improving the stability of the side support.

[0022] Optionally, the extension mechanism includes an adjusting screw, an adjusting nut, and a connecting rod. The connecting rod is located at one end of the side support leg near the supporting leg. The adjusting screw is rotatably connected to the side support leg, and the adjusting nut is fixedly connected to the adjusting screw. The adjusting screw is threadedly connected to the connecting rod.

[0023] By adopting the above technical solution, rotating the adjusting nut drives the adjusting screw to move axially, which in turn causes the connecting rod to extend and retract (accuracy 0.5mm). Through threaded fine adjustment, the wall bearing force is kept constant within the range of 200-500N, avoiding overload damage to the wall or bearing failure. At the same time, the extension mechanism facilitates the rotation of the side support legs, making operation convenient.

[0024] Optionally, the support leg is rotated on the mounting frame via a rotating mechanism, the rotating mechanism including a fixed cylinder and a sliding cylinder, the fixed cylinder being disposed on the mounting frame, and the sliding cylinder being slidably and rotatably connected within the fixed cylinder.

[0025] Optionally, the rotating mechanism further includes a first meshing tooth and a second meshing tooth, the first meshing tooth being disposed on the fixed cylinder and the second meshing tooth being disposed on the sliding cylinder, the first meshing tooth and the second meshing tooth meshing.

[0026] By adopting the above technical solution, depending on the position of the side wall, the support leg is pulled down and then rotated to make it perpendicular to or aligned with the wall. Then, it slides to engage the first and second meshing teeth, and the side support leg unfolds. Then, the bottom moving frame is adjusted to retract so that the support leg contacts the ground, and then the side support leg is adjusted to abut against the wall. The wall position is adaptive, improving the stability of the support. Furthermore, the setting of the first and second meshing teeth facilitates stabilizing the angle of the side support leg, improving the stability of the equipment.

[0027] Optionally, the contact surface of the abutment block is a serrated anti-slip textured surface that engages with the corresponding texture of the support leg.

[0028] By adopting the above technical solution and setting the abutment block, it is easier to reduce the rotation of the side support leg during use and improve the stability of use.

[0029] Optionally, the snap-fit ​​groove and snap-fit ​​block cooperate in a gear-like shape.

[0030] By adopting the above technical solution, the rotating side support leg is perpendicular to the wall or at an angle to the wall, and then the snap-fit ​​block is snapped into the snap-fit ​​groove. This structure facilitates the setting of the side support leg at multiple angles, which can further improve the applicability of the side support leg, and can improve stability by supporting the ground when there is no wall.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. By using ground support legs, wall abutment side support legs, and a frame that is lifted off the ground to form a three-dimensional stable system, the anti-tilting ability is improved compared to the single hydraulic support in the existing technology; the side support legs reduce the possibility of platform displacement; it occupies little space, can be used in narrow spaces, and can pass through narrow corridors, thus improving its applicability;

[0033] 2. Slide the push-pull connecting block along the fixed axis to disengage from the snap-fit ​​block, and rotate the side support leg to the target angle; press the connecting block so that the snap-fit ​​block is inserted into the snap-fit ​​groove; the angle is now fixed. With the above settings, the operation is simple, and it is easy to store and unfold the side support leg, improving convenience.

[0034] 3. The abutment block design helps reduce the rotation of the side support legs during use, thus improving stability. Attached Figure Description

[0035] Figure 1 This is an overall structural diagram of the table replacement platform in this application embodiment;

[0036] Figure 2 This is a cross-sectional view of the mounting bracket in an embodiment of this application;

[0037] Figure 3 This is a diagram illustrating the return spring in an embodiment of this application;

[0038] Figure 4 This is a diagram illustrating the rotating mechanism in an embodiment of this application;

[0039] Figure 5 This is a diagram illustrating the card slot in an embodiment of this application;

[0040] Figure 6 This is a diagram illustrating the abutment block in an embodiment of this application;

[0041] Figure 7 This application illustrates the scissor-support lifting mechanism in an embodiment.

[0042] Reference numerals: 100, mounting bracket; 110, mounting platform; 120, sliding column; 130, return spring; 210, bottom moving frame; 220, adjusting mechanism; 221, first slider; 222, fixing block; 223, power component; 300, top working platform; 400, scissor lift mechanism; 410, bottom scissor fork; 411, fixed fork; 412, sliding fork; 413, guide rail; 414, slide groove; 420, top scissor fork; 421, first movable fork; 422. Second movable fork; 423, guide plate; 430, force application component; 500, extension mechanism; 510, adjusting screw; 520, adjusting nut; 530, connecting rod; 600, support leg; 700, side support leg; 800, angle fixing mechanism; 810, fixed shaft; 820, connecting block; 821, snap-fit ​​groove; 830, snap-fit ​​block; 840, abutment block; 900, rotation mechanism; 910, fixed cylinder; 920, sliding cylinder; 930, first meshing tooth; 940, second meshing tooth. Detailed Implementation

[0043] The following combination Figures 1 to 7 This application will be described in further detail.

[0044] Reference Figures 1 to 7 This embodiment provides a lifting meter changing platform, the core of which includes a mounting frame 100, a bottom movable frame 210, a top working platform, a scissor-braced lifting mechanism 400, an adjusting mechanism 220, support legs 600, and side support legs 700; the bottom movable frame 210 is slidably connected to the mounting frame 100, and the adjusting mechanism 220 is located between the two to drive the bottom movable frame 210 to slide; the scissor-braced lifting mechanism 400 and the top working platform are sequentially mounted on the mounting frame 100; the support legs 600 are disposed on the mounting frame 100 and contact the ground when the bottom movable frame 210 is retracted; the side support legs 700 are disposed on the support legs 600 and are used to abut against the wall to improve the stability of the device.

[0045] The mounting frame 100 serves as the main load-bearing skeleton, and a mounting platform 110 is formed on the mounting frame 100. Two sliding columns 120 are slidably connected to the mounting platform 110. The bottom movable frame 210 is slidably connected to the mounting frame 100 through the sliding columns 120, and universal wheels are installed at the bottom. The top working platform is hinged to the top of the mounting frame 100 through a scissor brace lifting mechanism 400. There are 4 sets of support legs 600, and a rotating mechanism 900 is provided on the support legs 600. The support legs 600 are hinged to the four bottom corners of the mounting frame 100 through the rotating mechanism 900.

[0046] A drive assembly is provided on the mounting platform 110. The drive assembly includes a first slider 221, a fixing block 222, and a power component 223. A guide groove is provided on the side of the mounting platform 110 near the bottom movable frame 210. The guide groove is horizontally opened. The first slider 221 is horizontally embedded in the guide groove of the mounting platform 110. Its outer side wall is machined with a 45° first wedge surface. The fixing block 222 is fixed to the bottom surface of the chassis. A matching second wedge surface is provided at the corresponding position. The power component 223 adopts an adjusting screw 510. Its two ends are rotatably connected to the mounting platform 110 through bearing seats. The middle part of the adjusting screw 510 is engaged with the threaded hole of the first slider 221.

[0047] Rotating the adjusting screw 510 pushes the first slider 221 to move horizontally, the first wedge surface presses against the second wedge surface, and the wedge surface transmission converts the horizontal thrust into the vertical displacement of the bottom moving frame 210, so that the wheels are close to the ground and the support leg 600 is off the ground.

[0048] A return spring 130 is fitted on the sliding column 120. One end of the return spring 130 is connected to the bottom movable frame 210, and the other end is connected to the mounting platform 110. Pulling the bottom movable frame 210 closer to the mounting platform 110.

[0049] The rotating mechanism 900 includes a fixed cylinder 910, a sliding cylinder 920, a first meshing tooth 930, and a second meshing tooth 940. The fixed cylinder 910 is vertically welded to the bottom corner of the mounting frame 100. The sliding cylinder 920 is sleeved inside the fixed cylinder 910. The lower end of the sliding cylinder 920 is fixedly connected to the support leg 600, and the cylinder wall is provided with the second meshing tooth 940. The side wall of the fixed cylinder 910 is provided with the first meshing tooth 930, and the first meshing tooth 930 and the second meshing tooth 940 mesh.

[0050] An angle fixing mechanism 800 is provided on the side support leg 700, and is rotatably connected to the middle of the support leg 600 through the angle fixing mechanism 800, and a wall abutment plate is provided at the end.

[0051] The angle fixing mechanism 800 includes a fixed shaft 810, a connecting block 820, and a locking block 830. The fixed shaft 810 is vertically welded to the outer wall of the support leg 600. The connecting block 820 is located near the end of the side support leg 700. The connecting block 820 has a rotating hole and is sleeved on the fixed shaft 810 through the rotating hole, allowing it to slide and rotate along the shaft. The locking block 830 is fixedly connected to the support leg 600. The connecting block 820 has a corresponding locking groove 821. Both the locking groove 821 and the locking block 830 are gear-shaped and lock together.

[0052] Furthermore, in order to reduce the force exerted by the side support leg 700 on the fixed shaft 810, the connecting block 820 is provided with an abutment block 840. The abutment block 840 has a serrated surface on the side near the support leg 600, and the support leg 600 has a toothed surface that matches the serrated surface. Both are arc-shaped to facilitate rotational engagement.

[0053] Furthermore, to facilitate the adjustment of the side support leg 700, an extension mechanism 500 is provided on the side support leg 700. The extension mechanism 500 includes an adjusting screw 510, a connecting rod 530, and an adjusting nut 520. One end of the adjusting screw 510 is fixedly connected to a rotating block. The rotating block is coaxially fitted into the inner tube of the side support leg 700 and rotatably connected to the side support leg 700. The connecting rod 530 is fixed to the connecting block 820, and a threaded hole is provided on the connecting rod 530. The adjusting screw 510 is threadedly connected to the connecting rod 530 through the threaded hole. The adjusting nut 520 is welded to the outer end of the adjusting screw 510. Rotating the nut causes the adjusting screw 510 to move axially, pushing the side support leg 700 to extend or retract.

[0054] The scissor lift mechanism 400 adopts a multi-stage scissor lift structure, and the number of scissors can be selected according to the required height. In this embodiment, a two-stage scissor lift structure is preferred: including a bottom scissor lift 410, a top scissor lift 420, and a force application component 430. The bottom scissor lift 410 includes a fixed fork 411, a guide rail 413, and a sliding fork 412. The guide rail 413 is fixedly connected to the side wall of the mounting platform 110 away from the bottom moving frame 210, and has a horizontal groove 414. One end of the fixed fork 411 is hinged to the base of the mounting platform 110, and the other end is connected to the top scissor fork 420; one end of the sliding fork 412 rotates and slides in the slide groove 414, and the other end is connected to the top scissor fork 420. The sliding fork 412 is hinged to the middle of the fixed fork 411; the top scissor fork 420 includes a first movable fork 421, a second movable fork 422, and a guide plate 423. One end of the first movable fork 421 is hinged to the other end of the fixed fork 411, and the other end rotates with the top working platform. The top working platform is connected to form a platform for people to stand on; one end of the second movable fork 422 is hinged to the other end of the sliding fork 412, and the second movable fork 422 is hinged to the middle of the first movable fork 421. The other end of the second movable fork 422 is provided with a guide plate 423, which is fixedly connected to the top working platform. A guide groove is opened on the guide plate 423, which is opened in the horizontal direction. The other end of the second movable fork 422 rotates and slides in the guide groove. The top working platform serves as a workbench, on which a railing is fixedly connected. The force application component 430 can be a linear motion method such as an electric push cylinder, a hydraulic cylinder, a motor gear rack, or a motor lead screw. In this embodiment, an electric push cylinder is preferred. Two electric push cylinders are provided. One of them is hinged to the base, and the piston rod end is rotatably connected to the end of the sliding fork 412 located in the slide groove 414. The cylinder body of the other electric push cylinder is hinged to the top working platform, and the piston rod end is rotatably connected to the end of the second movable fork 422 located in the guide groove. The electric push cylinder drives the scissor arms to extend / retract by controlling the power supply and speed.

[0055] Working principle: The casters of the bottom movable frame 210 are on the ground, the support leg 600 is suspended in the air, the return spring 130 pulls the frame to fit tightly against the mounting platform 110, and the platform enters the narrow corridor with the minimum cross section; the side support leg 700 is pulled to move the connecting block 820 outward along the fixed shaft 810 and disengage from the snap-fit ​​block 830; the side support leg 700 is rotated to be perpendicular to the wall, the connecting block 820 is pressed, the gear-shaped snap-fit ​​groove 821 engages with the snap-fit ​​block 830, and the arc-shaped sawtooth surface of the abutment block 840 simultaneously engages with the toothed surface of the support leg 600; according to the position of the wall, the support leg 600 is slid and rotated. After the angle of the support leg 600 is adjusted, the support leg 600 is slid, so that the first inner tooth and the second meshing tooth 940 engage.

[0056] Rotate the adjusting screw 510 to push the first slider 221 to move horizontally. The first wedge surface presses against the second wedge surface of the fixing block 222. The wedge surface transmission converts the horizontal thrust into vertical lift. The bottom moving frame 210 moves upward, the casters leave the ground, and the support leg 600 rigidly touches the ground.

[0057] Rotate the adjusting nut 520 to drive the screw to move axially, and extend the side support leg 700 to press the wall abutment plate against the wall. Start the electric push cylinder, and the piston rod pushes the sliding fork 412 to move along the slide groove 414. The second movable fork 422 slides along the guide groove, the secondary scissor fork unfolds, and the top working platform rises to the target height to perform the meter changing work.

[0058] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lifting-type meter changing platform, characterized in that: include: Mounting bracket (100) forms the main body for mounting components; The bottom movable frame (210) slides on the mounting frame (100) and is equipped with casters at the bottom; The top working platform is equipped with protective railings around its perimeter. A scissor-support lifting mechanism (400) connects the mounting frame (100) to the top working platform; An adjustment mechanism (220) is disposed on the mounting frame (100) and connected to the bottom movable frame (210) for adjusting the height of the bottom movable frame (210); Multiple support legs (600) are provided and are all mounted on the mounting frame (100). When the bottom movable frame (210) is retracted, they are in contact with the ground. The side support leg (700) is horizontally positioned in the middle of the support leg (600), with a wall abutment plate at the end and an extension mechanism (500) for adjusting the length.

2. The lifting-type meter changing platform according to claim 1, characterized in that: The side support leg (700) is rotatably mounted on the support leg (600), and the side support leg (700) is provided with an angle fixing mechanism (800), which is connected to the support leg (600).

3. The lifting-type meter changing platform according to claim 2, characterized in that: The angle fixing mechanism (800) includes: a fixed shaft (810), a connecting block (820), and a snap-fit ​​block (830). The fixed shaft (810) is disposed on the support leg (600). The connecting block (820) is disposed at the end of the support leg (600) away from the wall abutment plate. The connecting block (820) has a rotating hole that is adapted to the fixed shaft (810). The connecting block (820) is rotatably and slidably connected to the fixed shaft (810) through the rotating hole. The snap-fit ​​block (830) is disposed on the support leg (600). The connecting block (820) has a snap-fit ​​groove (821) that cooperates with the snap-fit ​​block (830). When the connecting block (820) is close to the support leg (600), the snap-fit ​​block (830) snaps into the snap-fit ​​groove (821).

4. The lifting meter changing platform according to claim 3, characterized in that: The angle fixing mechanism (800) further includes an abutment block (840), which is disposed on the connecting block (820). The abutment block (840) abuts against the support leg (600), and the abutment surface is perpendicular to the snap-fit ​​surface of the snap-fit ​​block (830).

5. The lifting meter changing platform according to any one of claims 1-4, characterized in that: The extension mechanism (500) includes an adjusting screw (510), an adjusting nut (520), and a connecting rod (530). The connecting rod (530) is located at one end of the side support leg (700) near the support leg (600). The adjusting screw (510) is rotatably connected to the side support leg (700). The adjusting nut (520) is fixedly connected to the adjusting screw (510). The adjusting screw (510) is threadedly connected to the connecting rod (530).

6. The lifting-type meter changing platform according to claim 1, characterized in that: The support leg (600) is rotated on the mounting frame (100) by a rotating mechanism (900). The rotating mechanism (900) includes a fixed cylinder (910) and a sliding cylinder (920). The fixed cylinder (910) is disposed on the mounting frame (100), and the sliding cylinder (920) is slidably and rotatably connected inside the fixed cylinder (910).

7. The lifting meter changing platform according to claim 6, characterized in that: The rotating mechanism (900) further includes a first meshing tooth (930) and a second meshing tooth (940). The first meshing tooth (930) is disposed on the fixed cylinder (910), and the second meshing tooth (940) is disposed on the sliding cylinder (920). The first meshing tooth (930) and the second meshing tooth (940) mesh.

8. The lifting-type meter changing platform according to claim 4, characterized in that: The contact surface of the abutment block (840) is a serrated anti-slip textured surface, which engages with the corresponding texture of the support leg (600).

9. The lifting meter changing platform according to claim 8, characterized in that: The locking groove (821) and locking block (830) engage in a gear-like manner.

Images