Lifting operation platform with self-locking function

Abstract

The utility model relates to the technical field of building construction, in particular to a lifting operation platform with a self-locking function. The number of the guide grooves is four, the guide grooves are symmetrically distributed in a rectangular mode, each guide groove comprises a rolling groove and a clamping groove which are formed in the inner side, and fixing teeth are linearly arrayed on the inner wall of one side of each clamping groove; and the lifting operation mechanism is arranged among the four guide grooves, and the lifting operation mechanism comprises two platforms distributed up and down, a telescopic piece fixed between the two platforms and a lifting assembly arranged on the platforms. In the ascending process, the sliding teeth protrude out of the sliding grooves, and the sliding gears located above and below flow into the sliding grooves under the driving cooperation of the driving assembly and the power piece. The upper platform and the lower platform are self-locked anytime and anywhere through switching of the fixed ends of the telescopic pieces and matching of the upper sliding teeth and the lower sliding teeth at the movable ends or the fixed ends, so that the safety of the platforms is improved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a lifting operation platform with a self-locking function. Background Technology

[0002] Lifting work platforms are used in exterior wall construction, interior decoration, equipment installation and maintenance scenarios. Existing technologies incorporate self-locking structures to improve safety. For example, some platforms use a locking mechanism that employs slots and pins, with a fixed spacing between the slots, limiting the platform to locking only at these fixed intervals. Some friction-based self-locking platforms may experience reduced friction under prolonged heavy loads or external vibrations and impacts, leading to platform slippage. Certain hydraulic or pneumatic self-locking devices require a significant time delay from triggering the locking command to completing the locking action. However, current technology lacks a lifting work platform capable of self-locking anytime, anywhere. Utility Model Content

[0003] This utility model solves the technical problem of existing technologies that cannot self-lock at any time and place by providing a lifting operation platform with a self-locking function.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a lifting work platform with a self-locking function, comprising:

[0006] Support platform;

[0007] The guide groove has four guide grooves that are symmetrically distributed in a rectangle. The guide groove includes a rolling groove and a retaining groove disposed on the inner side. The inner wall of one side of the retaining groove has a linear array of fixed teeth.

[0008] A lifting mechanism is provided between four guide slots. The lifting mechanism includes two platforms distributed vertically, a telescopic component fixed between the two platforms, and a lifting assembly set on the platforms. The lifting assembly includes: an installation cavity opened in the platform; a receiving slot opened on the side of the platform at a corresponding position of the rolling slot; and a sliding slot opened on the side of the platform at a corresponding position of the slot. A pressure wheel and a sliding tooth are respectively provided in the receiving slot and the sliding slot, and the sliding tooth is slidably connected to the sliding slot.

[0009] During the platform's ascent, the sliding teeth intermittently retract into or extend out of the sliding groove; during the platform's descent, the sliding teeth retract into the sliding groove, and the pressure roller protrudes from the receiving groove and rolls into contact with the rolling groove.

[0010] Furthermore, the receiving groove and the sliding groove are staggered vertically. There are two receiving grooves, and a sliding rod two is rotatably sleeved between the two receiving grooves. The inner ends of the two sliding rods two located on the same side slide through the receiving groove and are fixedly connected to a synchronization plate two. The two synchronization plates two are internally threaded to a bidirectional screw two.

[0011] The inner side of the sliding tooth is elastically connected to a sliding rod. The inner ends of the two sliding rods on the same side pass through the sliding groove and are fixedly connected to a synchronization plate. The two synchronization plates are internally threaded to a bidirectional screw.

[0012] The second bidirectional screw is not driven simultaneously with the first bidirectional screw.

[0013] Furthermore, an elastic groove is provided on the inner side of the sliding tooth, and a spring is fixedly connected to the inner wall of the elastic groove. The other end of the spring is fixed to the sliding rod.

[0014] Furthermore, gear one and gear two are coaxially connected to the bidirectional screw one and bidirectional screw two respectively via electromagnetic clutches. A driving component is fixed to the inner wall of the mounting cavity, and gear three is fixed to the driving end of the driving component. Gear three meshes with gear one and gear two.

[0015] Furthermore, the telescopic component is a screw-driven mechanism.

[0016] Furthermore, the lifting mechanism, drive unit, and electromagnetic clutch are electrically connected to a control component.

[0017] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0018] During the ascent, the sliding teeth protrude from the sliding groove. Driven by the drive components and power components, the sliding gears located above and below flow into the sliding groove. By switching the fixed end of the telescopic component and coordinating the upper and lower sliding teeth at the movable or fixed ends, the two platforms can be self-locked at any time to improve platform safety. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention 1;

[0021] Figure 2This is a top view of the present invention 1;

[0022] Figure 3 for Figure 2 A cross-sectional view of the AA section;

[0023] Figure 4 for Figure 3 Enlarged view of point C in the middle;

[0024] Figure 5 for Figure 2 A cross-sectional view of the BB section;

[0025] Figure 6 for Figure 5 Enlarged view of point D in the middle.

[0026] Reference numerals: 1. Support platform; 2. Guide groove; 21. Rolling groove; 22. Slot; 23. Fixed tooth; 3. Lifting mechanism; 31. Platform; 32. Telescopic component; 33. Lifting assembly; 331. Mounting cavity; 332. Sliding groove; 333. Receiving groove; 334. Sliding tooth; 335. Pressure wheel; 336. Spring; 34. Drive assembly; 341. Slide rod one; 342. Slide rod two; 343. Synchronizing plate one; 344. Synchronizing plate two; 345. Bidirectional screw one; 346. Bidirectional screw two; 35. Power component; 351. Gear one; 352. Gear two. Detailed Implementation

[0027] This utility model provides a lifting work platform with a self-locking function. During the lifting process, the sliding teeth 334 protrude from the sliding groove 332. Under the driving cooperation of the drive component 34 and the power component 35, the upper and lower sliding teeth 334 are alternately put into the sliding groove 332. By switching the fixed end of the telescopic component 32 and cooperating with the upper and lower sliding teeth 334 being at the movable end or the fixed end, the upper and lower platforms 31 can be self-locked at any time to improve the platform safety.

[0028] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0029] Example: Refer to Figures 1 to 6 A self-locking lifting platform includes a support platform 1, a guide groove 2, and a lifting mechanism 3. The self-locking function is achieved through the cooperation of the support platform 1, guide groove 2, and lifting mechanism 3. Specifically: refer to... Figure 2The guide grooves 2 have four sections arranged in a rectangular symmetrical pattern. Each guide groove 2 includes a rolling groove 21 and a slot 22 located on the inner side, with the rolling groove 21 positioned further inward than the slot 22. The four rolling grooves 21 are located between the four slots 22. A linear array of fixing teeth 23 is arranged on one inner wall of each slot 22. The lifting mechanism 3 is located between the four guide grooves 2. The lifting mechanism 3 specifically includes two vertically distributed platforms 31, a telescopic member 32 fixed between the two platforms 31, and a lifting assembly 33 mounted on the platforms 31. The telescopic member 32 is a screw drive mechanism, a technology that has been developed in the prior art. The telescopic component 32 has self-locking properties due to its internal screw structure. The lifting assembly 33 includes: a mounting cavity 331 in the platform 31; a receiving groove 333 on the side of the platform 31 at the corresponding position of the rolling groove 21; and a sliding groove 332 on the side of the platform 31 at the corresponding position of the slot 22. A pressing wheel 335 and a sliding tooth 334 are respectively provided in the receiving groove 333 and the sliding groove 332. The sliding tooth 334 is slidably connected to the sliding groove 332. The pressing wheel 335 moves relative to the receiving groove 333, and the sliding tooth 334 slides relative to the sliding groove 332.

[0030] During the ascent of the platform 31, the sliding teeth 334 located above and below intermittently retract into or extend out of the sliding groove 332. During the descent of the platform 31, the sliding teeth 334 retract into the sliding groove 332, and the pressure roller 335 protrudes out of the receiving groove 333 and rolls into contact with the rolling groove 21. The friction between the pressure roller 335 and the rolling groove 21 is used to relatively reduce the descent speed of the lifting operation platform.

[0031] To drive the sliding gear 334 and the pressure wheel 335 respectively, the following configuration is made: the receiving groove 333 and the sliding groove 332 are staggered vertically to avoid interference with the subsequent structure caused by the receiving groove 333 and the sliding groove 332 being on the same horizontal line. There are two receiving grooves 333, and a sliding rod 342 is rotatably sleeved between the two receiving grooves 333. The inner ends of the two sliding rods 342 located on the same side slide through the receiving groove 333 and are jointly fixedly connected to a synchronous plate 344. The two synchronous plates 344 are internally threaded with a double-acting screw 346. The double-acting screw 346 is... During the driving process, the two synchronous plates 344 move relative to each other or in opposite directions; the inner side of the sliding tooth 334 is elastically connected to the sliding rod 341, and the inner ends of the two sliding rods 341 on the same side pass through the sliding groove 332 and are fixedly connected to the synchronous plate 343. The two synchronous plates 343 are internally threaded to the bidirectional screw 345. During the driving process of the bidirectional screw 345, the two synchronous plates 343 move relative to each other or in opposite directions; among them, the bidirectional screw 346 and the bidirectional screw 345 are not driven at the same time, that is, during the extension of the pressure wheel 335, the sliding tooth 334 will not retract.

[0032] In addition, the fixed tooth 23 has a lower inclined surface, and the sliding tooth 334 has an upper inclined surface. The lower inclined surface and the upper inclined surface fit together. During the extension and retraction of the telescopic member 32, the retraction distance of the sliding tooth 334 can be relatively reduced to improve the lifting efficiency.

[0033] The elastic connection between the sliding tooth 334 and the slide rod 341 is as follows: an elastic groove is provided on the inner side of the sliding tooth 334, and a spring 336 is fixedly connected to the inner wall of the elastic groove. The other end of the spring 336 is fixed to the slide rod 341. When the sliding tooth 334 is not fully retracted into the sliding groove 332, during the lifting and lowering movement of the corresponding telescopic member 32, the sliding tooth 334 generates a horizontal component force under the compression of the upper inclined surface by the lower inclined surface and intermittently extends and retracts in the sliding groove 332.

[0034] The first bidirectional screw 345 and the second bidirectional screw 346 are coaxially connected to gear 351 and gear 352 respectively via existing electromagnetic clutches. The electromagnetic clutches control whether they are driven. In addition, a driving component is fixed to the inner wall of the mounting cavity 331. Gear 3 is fixed to the driving end of the driving component. Gear 3 meshes with gear 351 and gear 352. It should be noted that the driving component and gear 3 are obscured and not shown. The driving component drives gear 3 and puts the corresponding electromagnetic clutch into an engaged working state to drive the first bidirectional screw 345 or the second bidirectional screw 346.

[0035] The lifting mechanism 3, drive components, and electromagnetic clutch are electrically connected to a control component, which can be a PLC controller or other control equipment with control functions.

[0036] The working principle of this utility model is as follows:

[0037] When the lifting platform needs to rise, the upper sliding tooth 334 retracts into the sliding groove 332, and the lower sliding tooth 334 is partially or completely engaged with the fixed tooth 23 therein, as shown in the reference. Figure 3 The telescopic rod end of the telescopic component 32 is a fixed end, and the cylindrical end of the telescopic component 32 is a movable end. Since the platform 31 above has no upward resistance or relatively little resistance, the cylindrical end of the telescopic component 32 rises. It should be noted that the telescopic distance of the telescopic component 32 is equal to a multiple of the longitudinal width of the fixed tooth 23, so that after the position of the platform 31 is determined each time, the sliding tooth 334 is completely aligned with the position of the corresponding fixed tooth 23. The existing method of installing a distance sensor for monitoring can be used. Through the cooperation of the drive component 34 and the power component 35, the upper sliding tooth 334 is locked on the fixed tooth 23, and the lower sliding tooth 334 is partially or completely retracted into the sliding groove 332. The cylindrical end of the telescopic component 32 is changed to a fixed end and the telescopic rod end is a movable end, pulling the lower platform 31 upward. Repeating the above process completes the upward movement.

[0038] The specific extension and retraction action of the sliding tooth 334 is as follows: The controller controls the electromagnetic clutch in the gear 351 to be engaged, the drive unit drives the gear three to mesh with the gear 351 to drive the bidirectional screw 345 to rotate, and the two synchronous plates 343 move relative to or away from each other on the axis of the bidirectional screw 345. During the relative movement, the sliding tooth 334 is driven to retract into the sliding groove 332 through the slide rod 341. During the away movement, the sliding tooth 334 is extended through the sliding tooth 334.

[0039] When the lifting platform needs to descend, before the sliding tooth 334 retracts into the sliding groove 332, the controller controls the electromagnetic clutch in gear two 352 to be engaged and the electromagnetic clutch in gear one 351 to be disengaged. With the sliding tooth 334 protruding from the sliding groove 332, the drive unit drives gear three to mesh with gear two 352, driving the bidirectional screw two 346 to rotate. The two synchronous plates two 344 move relative to or away from the axis of the bidirectional screw two 346. During the relative movement, the sliding rod two 342 drives the pressure wheel 335 to retract into the receiving groove 333. During the away movement, the pressure wheel 335 extends out of the receiving groove 333 to make it roll into contact with the rolling groove 21. The friction between the receiving groove 333 and the rolling groove 21 is relatively large. Then all the sliding teeth 334 are retracted, and the lifting platform descends slowly in the rolling groove 21 under its own weight.

[0040] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A lifting work platform with a self-locking function, characterized in that, include: Support platform (1); The guide groove (2) has four grooves and is symmetrically distributed in a rectangular shape. The guide groove (2) includes a rolling groove (21) and a slot (22) disposed on the inner side. The inner wall of one side of the slot (22) has a linear array of fixed teeth (23). The lifting mechanism (3) is set between four guide slots (2). The lifting mechanism (3) includes: two platforms (31) distributed vertically, a telescopic member (32) fixed between the two platforms (31), and a lifting assembly (33) set on the platform (31). The lifting assembly (33) includes: an installation cavity (331) is opened in the platform (31), a receiving slot (333) is opened on the side of the platform (31) at the corresponding position of the rolling slot (21), and a sliding slot (332) is opened on the side of the platform (31) at the corresponding position of the slot (22). The receiving slot (333) and the sliding slot (332) are respectively provided with a pressure wheel (335) and a sliding tooth (334), and the sliding tooth (334) is slidably connected to the sliding slot (332). During the process of the platform (31) rising, the sliding tooth (334) retracts into or extends out of the sliding groove (332) intermittently. During the process of the platform (31) falling, the sliding tooth (334) retracts into the sliding groove (332), the pressure wheel (335) protrudes out of the receiving groove (333) and rolls in contact with the rolling groove (21).

2. The lifting work platform with self-locking function according to claim 1, characterized in that, The receiving groove (333) and the sliding groove (332) are staggered vertically. There are two receiving grooves (333), and a sliding rod (342) is rotatably sleeved between the two receiving grooves (333). The inner ends of the two sliding rods (342) located on the same side slide through the receiving groove (333) and are fixedly connected to a synchronous plate (344). The two synchronous plates (344) are internally threaded with a two-way screw (346). The inner side of the sliding tooth (334) is elastically connected to a sliding rod (341). The inner ends of the two sliding rods (341) located on the same side pass through the sliding groove (332) and are fixedly connected to a synchronization plate (343). The two synchronization plates (343) are internally threaded to a bidirectional screw (345). The bidirectional screw two (346) is not driven at the same time as the bidirectional screw one (345).

3. The lifting work platform with self-locking function according to claim 2, characterized in that, The inner side of the sliding tooth (334) is provided with an elastic groove, and a spring (336) is fixedly connected to the inner wall of the elastic groove. The other end of the spring (336) is fixed to the slide rod (341).

4. The lifting work platform with self-locking function according to claim 2, characterized in that, The first bidirectional screw (345) and the second bidirectional screw (346) are respectively connected to gear one (351) and gear two (352) via electromagnetic clutches. The inner wall of the mounting cavity (331) is fixed with a driving component, and the driving end of the driving component is fixed with gear three. Gear three meshes with gear one (351) and gear two (352).

5. The lifting work platform with self-locking function according to claim 1, characterized in that, The telescopic component (32) is a screw drive mechanism.

6. The lifting work platform with self-locking function according to claim 4, characterized in that, The lifting mechanism (3), drive unit, and electromagnetic clutch are electrically connected to a control component.

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