Lifting platform and circumferential rotation locking device thereof

Abstract

The circumferential rotation locking device comprises a locking plate, a rocker and a handle, clamping teeth are arranged at one end of the locking plate and matched with a fluted disc on the lifting table, a first arc-shaped groove and a second arc-shaped groove are formed in the locking plate, a first fixing plate is fixedly arranged on the bottom face of a table top, and a second fixing plate is fixedly arranged on the bottom face of the table top. A first pin shaft is arranged on the first fixing plate and is arranged in the first arc-shaped groove in a sliding manner; the first end of the rocker is fixed to the bottom face of the table top through a second fixing plate, and the second end of the rocker is provided with a second pin shaft and arranged in the second arc-shaped groove in a sliding mode. The handle is arranged on the bottom face of the first end of the rocker. The locking plate and the rocker form a connecting rod mechanism, the handle is rocked to drive the locking plate to be close to or away from the fluted disc, when the clamping teeth on the fluted disc are clamped into the fluted disc, locking of the table top is achieved, stooping for operation is not needed, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to a lifting platform and a circumferential rotation locking device thereof. Background Art

[0002] Most teaching demonstration models are placed on a lifting platform for use. In order to facilitate teaching, the teaching demonstration models can usually be rotated on the table of the lifting platform and locked by a latch mechanism.

[0003] However, the latch mechanism requires bending over to pull down and insert the latch into the socket for operation, which is inconvenient to operate. Utility Model Content

[0004] In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a lifting platform and a circumferential rotation locking device thereof, so as to solve the problem of inconvenient rotation locking operation in the prior art.

[0005] To this end, a first aspect of an embodiment of the present application provides a circumferential rotation locking device for a lifting platform, comprising:

[0006] The lock plate is L-shaped, with a latching tooth at one end, the latching tooth is matched with the toothed disc on the table top of the lifting platform, the lock plate is provided with a first arc groove and a second arc groove, a first fixing plate is fixedly provided on the bottom surface of the table top, the first fixing plate is provided with a first pin shaft, and the first pin shaft is slidably arranged in the first arc groove;

[0007] A rocker, a first end of which is fixed to the bottom surface of the table through a second fixing plate, and a second end of which is provided with a second pin shaft, and the second pin shaft is slidably arranged in the second arc groove;

[0008] A handle is arranged on the bottom surface of the first end of the rocker.

[0009] Based on the above technical solution, the lock plate and the rocker in the locking device form a connecting rod mechanism. By shaking the handle, the rocker drives the lock plate to move closer to or away from the toothed disc, so that the teeth on the toothed disc are engaged with or disengaged from the toothed disc, thereby locking or unlocking the table top. There is no need to bend over to operate, and the operation is convenient.

[0010] A first aspect of an embodiment of the present application provides a lifting platform, comprising a base, on which a lifting mechanism is provided, a top of the lifting mechanism is provided, and further comprising:

[0011] A toothed disc, fixedly arranged at the center of the bottom surface of the table top;

[0012] At least one circumferential rotation locking device is arranged on the bottom surface of the table top, the circumferential rotation locking device adopts the circumferential rotation locking device mentioned above, and the latch teeth are adapted to the toothed disc.

[0013] In the above technical solution, preferably, two locking devices are provided, which are symmetrically arranged on both sides of the toothed disc. The locking operation can be completed on either side of the tabletop, which is convenient to use.

[0014] In the above technical solution, preferably, it also includes a foot-operated lifting controller for controlling the lifting and lowering of the lifting mechanism, making the lifting operation more convenient.

[0015] It can be seen from the above technical solutions that the lifting platform and the circumferential rotation locking device provided by the utility model solve the problem of inconvenient operation of the prior art. Compared with the prior art, the utility model has the following beneficial effects:

[0016] The lock plate and the rocker form a connecting rod mechanism. Shaking the handle drives the lock plate to move closer to or away from the toothed disc. When the locking teeth on the toothed disc are engaged with the toothed disc, the table top is locked. There is no need to bend over to operate, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce and illustrate the drawings required for use in the embodiments of the utility model or the description of the prior art. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the lifting platform in the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the lifting platform as viewed from above;

[0020] Figure 3 for Figure 1 The exploded structural diagram of the lifting platform shown;

[0021] Figure 4 It is a schematic diagram of the locking device in the utility model;

[0022] Figure 5 for Figure 2 Enlarged view of part A in .

[0023] Figure 1-Figure 5 In the figure, the corresponding relationship of the parts is as follows:

[0024] Lifting platform 20, table top 30, foot-operated lifting controller 40, locking device 50;

[0025] Base 21, lifting mechanism 22, chassis 23;

[0026] Toothed disc 31;

[0027] Lock plate 51, rocker 52, handle 53, first fixing plate 54;

[0028] A latching tooth 511, a first arc-shaped groove 512 and a second arc-shaped groove 513;

[0029] A second pin 521;

[0030] The first pin shaft 541 . DETAILED DESCRIPTION

[0031] The following will be combined with the drawings of the embodiments of the utility model to clearly and completely describe the technical solutions of the embodiments of the utility model. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In order to more clearly explain and illustrate the technical solution and implementation of the present utility model, several preferred specific embodiments for implementing the technical solution of the present utility model are introduced below.

[0033] It should be noted that the directional words such as "inside, outside", "front, back" and "left, right" in this article are expressed based on the product usage status. Obviously, the use of the corresponding directional words does not constitute a limitation on the protection scope of this scheme.

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, a schematic diagram of a lifting platform provided by the utility model, a table top 30 is rotatably provided at the upper end of the lifting platform 20, which is used to fix a teaching model so that the teaching model can be raised and lowered with the lifting platform 20, and can be rotated in a horizontal plane with the table top 30 to provide an optimal height and angle for convenient teaching and demonstration.

[0035] The lifting platform 20 includes a base 21, and the table 30 is arranged on the base 21 through a lifting mechanism 22. The lifting mechanism 22 can be realized by using existing technology, which will not be described in detail here. In addition, the lifting mechanism 22 can be operated by a foot-operated lifting controller 40 to control the lifting of the lifting mechanism 22, freeing both hands and making the lifting operation more convenient.

[0036] A chassis 23 is provided on the top of the lifting mechanism 22, and a control system and a power supply device are arranged in the chassis 23. A gear plate 31 is fixedly provided at the center of the bottom surface of the table 30, and the gear plate 31 is rotatably arranged on the chassis 23. The table 30 can be pushed by hand to rotate in a horizontal plane on the chassis 23.

[0037] At least one locking device 50 is provided on the bottom surface of the table top 30 for locking the position after the table top 30 is rotated to a suitable position to prevent accidental rotation when the table top 30 or the simulated pet model 10 is touched.

[0038] like Figure 4 , Figure 5 As shown, the locking device 50 includes a locking plate 51 , a rocker 52 and a handle 53 .

[0039] The lock plate 51 is L-shaped, and one end is provided with a latching tooth 511, which is matched with the toothed disc 31. The lock plate 51 is provided with a first arc groove 512 and a second arc groove 513. A first fixing plate 54 is fixedly provided on the bottom surface of the table 30, and a first pin 541 is provided on the first fixing plate 54. The first pin 541 is slidably arranged in the first arc groove 512. The handle 53 is arranged on the bottom surface of the first end of the rocker 52. The first end of the rocker 52 is fixed to the bottom surface of the table 30 through the second fixing plate 55. The second end of the rocker 52 is provided with a second pin 521, and the second pin 521 is slidably arranged in the second arc groove 513.

[0040] The lock plate 51 and the rocker 52 form a connecting rod mechanism, and the handle 53 is shaken to make the rocker 52 drive the lock plate 51 to move closer to or away from the toothed disc 31. When the latching teeth 511 on the toothed disc 31 are engaged with the toothed disc, the table top 30 is locked, and the table top 30 can no longer rotate; when the latching teeth 511 are disengaged from the toothed disc, the table top 30 is unlocked, and the table top 30 can rotate.

[0041] In this embodiment, two locking devices 50 are provided, which are symmetrically arranged on both sides of the toothed disc 31 . The locking operation can be completed on any side of the table top 30 , which is easy to operate.

[0042] Based on the description of the above specific embodiments, the lifting platform and the circumferential rotation locking device provided by the utility model have the following advantages compared with the prior art:

[0043] First, the table top of the lifting platform can be raised and lowered with the lifting platform, and can be rotated in the horizontal plane with the table top to provide the best height and angle for convenient teaching and demonstration.

[0044] Second, at least one locking device is also provided on the bottom surface of the table top, which is used to lock the position after the table top is rotated to a suitable position to prevent accidental rotation when the table top or the simulated pet model is touched.

[0045] Third, the lock plate and the rocker in the locking device form a connecting rod mechanism. By shaking the handle, the rocker drives the lock plate to move closer to or away from the toothed disc, so that the teeth on the toothed disc are engaged with or disengaged from the toothed disc, thereby locking or unlocking the tabletop. There is no need to bend over to operate, and the operation is convenient.

[0046] Finally, it should be noted that the terms "comprises", "includes" or any other variants thereof as used herein are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0047] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware of the structural changes made under the inspiration of the present invention. All technical solutions that are the same or similar to the present invention fall within the protection scope of the present invention.

Claims

1. A circumferential rotation locking device for a lifting platform, characterized in that: include: The lock plate is L-shaped, with a latching tooth at one end, the latching tooth is matched with the toothed disc on the table top of the lifting platform, the lock plate is provided with a first arc groove and a second arc groove, a first fixing plate is fixedly provided on the bottom surface of the table top, the first fixing plate is provided with a first pin shaft, and the first pin shaft is slidably arranged in the first arc groove; A rocker, a first end of which is fixed to the bottom surface of the table through a second fixing plate, and a second end of which is provided with a second pin shaft, and the second pin shaft is slidably arranged in the second arc groove; A handle is arranged on the bottom surface of the first end of the rocker.

2. A lifting platform, comprising a base, on which a lifting mechanism is arranged, and a table top is arranged on the top of the lifting mechanism, characterized in that: Also includes: A toothed disc, fixedly arranged at the center of the bottom surface of the table top; At least one circumferential rotation locking device is arranged on the bottom surface of the table top, the circumferential rotation locking device adopts the circumferential rotation locking device described in claim 1, and the latch teeth are adapted to the toothed disc.

3. The lifting platform according to claim 2, characterized in that: Two locking devices are provided in total, which are symmetrically arranged on both sides of the toothed disc.

4. The lifting platform according to claim 2, characterized in that: It also includes a foot-operated lifting controller for controlling the lifting of the lifting mechanism.

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