Extensible lifting rack for experiment

Abstract

The utility model relates to the technical field of teaching experiment teaching aids, and discloses an extendable lifting rack for experiments, which comprises a base, supporting columns are fixedly mounted at four corners of the bottom of the base, a vertical plate is fixedly mounted at the top of the base, and vertical columns are fixedly mounted in the vertical plate. An adjusting screw rod is rotatably installed in the vertical plate, a lifting plate is installed on the outer portion of the adjusting screw rod in a threaded mode, an unfolding mechanism is arranged on the outer portion of the lifting plate, an auxiliary supporting mechanism is arranged in the lifting plate, and an extension plate is flush with the top of the table plate, so that the experiment operation area is enlarged; the extension plate can be vertically placed and stored when not in use, so that the problems that when the top area of the table plate is small, the teaching aid placed on the edge falls off and is damaged, and when the top area of the table plate is large, the storage space is occupied when the table plate is placed are solved, and under the cooperation of a limiting plate and a second supporting rod, the teaching aid can be conveniently placed and stored. And the bedplate and the extension plate are supported.

Description

Technical Field

[0001] This utility model relates to the field of teaching experimental teaching aids technology, specifically an extendable lifting platform for experiments. Background Technology

[0002] Physics experiments play a crucial role in physics teaching. They not only help students understand abstract concepts but also improve their hands-on skills. Improving experimental results greatly enhances the effectiveness of physics teaching.

[0003] According to the patent application published on the Internet (authorization announcement number: CN 219210018 U), "This utility model discloses a physics experiment lifting platform, including a base, with leveling support components provided on both sides of the base, a support column provided on the base, a sliding sleeve ring slidably sleeved on the support column, a lifting bracket connected to the side end of the sliding sleeve ring, a lifting platform provided on the lifting bracket, and a smooth lifting adjustment component provided on the base, the smooth lifting adjustment component being connected to the sliding sleeve ring. This utility model belongs to the field of physics teaching experiment teaching aids technology, specifically referring to a physics experiment lifting platform capable of stable lifting adjustment, allowing observation of the lifting height, adjusting the base level, and ensuring the accuracy of the experiment."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] In use, the gear drives the outer sleeve rod to slide on the limiting rod via the snap-tooth mechanism. The vertical movement of the outer sleeve rod drives the sliding sleeve ring to slide up and down on the limiting rod, thereby adjusting the height of the lifting bracket and the lifting platform. The height can be adjusted according to the actual situation. However, during experiments, the experimental teaching aids are placed on top of the lifting platform. The size of the lifting platform is fixed, but when many teaching aids are used in the experiment, the top space is limited when the lifting platform is small, which may knock the teaching aids off and cause damage during operation. When the lifting platform is large, the device takes up a lot of storage space when not in use, which is inconvenient. Therefore, it is necessary to improve the experimental extended lifting platform to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide an extendable lifting platform for experiments to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an extendable lifting platform for experiments, comprising a base, with support columns fixedly installed at the four corners of the bottom of the base, a vertical plate fixedly installed at the top of the base, a vertical column fixedly installed inside the vertical plate, an adjusting screw rotatably installed inside the vertical plate, a lifting plate threaded onto the external thread of the adjusting screw, an unfolding mechanism provided outside the lifting plate, and an auxiliary support mechanism provided inside the lifting plate.

[0008] Preferably, the unfolding mechanism includes a platform, which is disposed outside the lifting plate. Two bolts are threaded inside the platform. The lifting plate is slidably mounted outside two vertical columns and inside the vertical columns. Two rotating shafts are rotatably mounted inside the platform. Extension plates are fixedly mounted outside each of the two rotating shafts. A spring is fixedly mounted inside the platform. A control plate is fixedly mounted at the end of the spring away from the platform. Two limiting posts are fixedly mounted on the side of the control plate near the platform. Two inserts are fixedly mounted on the side of the control plate near the limiting posts. The inserts are inserted into the rectangular grooves of the rotating shafts, so that the extension plates are fixed horizontally, making the extension plates flush with the top of the platform, thereby expanding the experimental operating area.

[0009] Preferably, the insert block is inserted into the inside of the rotating shaft, the extension plate is movably installed inside the platform, and both bolts are threaded inside the lifting plate, which facilitates the replacement of the damaged platform and its connected mechanism.

[0010] Preferably, the limiting post is slidably installed inside the platform, and the control plate is slidably installed inside the platform to drive the insertion block to move.

[0011] Preferably, the auxiliary support mechanism includes two limiting plates, both of which are fixedly installed at the bottom of the lifting plate. Two support rods are rotatably installed inside the lifting plate. Springs are fixedly installed inside each of the two support rods. Support rods are fixedly installed at the ends of the springs away from the support rods. Springs are fixedly installed at the bottom of the support rods. Insertion pins are fixedly installed at the ends of the springs away from the support rods. Insertion holes are provided inside the platform and the extension plate to fix the position of the support rods after they rotate.

[0012] Preferably, the insertion post passes through the second support rod and is inserted into the inside of the insertion hole. The second support rod is slidably installed inside the first support rod, so that with the cooperation of the limiting plate and the second support rod, the platform and the extension plate are further supported, making it more stable and providing stronger support during use.

[0013] Preferably, the first support rod contacts the limiting plate, and the control plate and the second support rod are provided with placement grooves at corresponding positions, so as to facilitate the pre-positioning of the second support rod and the insertion of the insertion post into the insertion hole of the platform.

[0014] Compared with the prior art, this utility model provides an extendable lifting platform for experiments, which has the following advantages:

[0015] 1. This experiment uses an extendable lifting platform. A spring drives the control plate to fit against the platform, allowing the insert to engage with the rectangular slot of the rotating shaft. This locks the extension plate in a horizontal position, making it flush with the top of the platform and expanding the experimental operating area. This allows for the placement of more and larger teaching aids for experiments. When not in use, the extension plate can be stored vertically, preventing teaching aids from falling off the edge and being damaged when the platform top area is small, and avoiding the problem of taking up too much storage space when the platform top area is large.

[0016] 2. Based on this, the present invention uses spring three to drive the insertion post to be inserted into the insertion hole of the extension plate, so that with the cooperation of the limiting plate and the support rod two, the platform and the extension plate are further supported, making them more stable and stronger in use, and avoiding the problem of the platform and the extension plate tilting and deforming or even being damaged due to the heavy teaching aids.

[0017] 3. Based on this, the present invention uses bolts to make it more convenient to replace the platform and its connected mechanism when they are damaged. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0020] Figure 2 This is a bottom view of the lifting plate and its connected mechanism of the present invention.

[0021] Figure 3 This is an exploded view of the unfolding mechanism of this utility model;

[0022] Figure 4 This is an exploded structural diagram of the control board and its connected mechanisms of this utility model;

[0023] Figure 5This is an exploded structural diagram of the auxiliary support mechanism of this utility model.

[0024] In the diagram: 1. Base; 2. Support column; 3. Vertical plate; 4. Vertical column; 5. Adjusting screw; 6. Lifting plate; 7. Unfolding mechanism; 71. Platform; 72. Bolt; 73. Rotating shaft; 74. Extension plate; 75. Spring 1; 76. Control panel; 77. Limiting column; 78. Insert block; 8. Auxiliary support mechanism; 81. Limiting plate; 82. Support rod 1; 83. Spring 2; 84. Support rod 2; 85. Spring 3; 86. Inserting column; 87. Insertion hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1:

[0028] Please see Figure 1-4 This utility model provides a technical solution: including a base 1, with support columns 2 fixedly installed at the four corners of the bottom of the base 1, a vertical plate 3 fixedly installed at the top of the base 1, a vertical column 4 fixedly installed inside the vertical plate 3, an adjusting screw 5 rotatably installed inside the vertical plate 3, a lifting plate 6 threaded on the outside of the adjusting screw 5, an unfolding mechanism 7 provided on the outside of the lifting plate 6, and an auxiliary support mechanism 8 provided inside the lifting plate 6.

[0029] Furthermore, the unfolding mechanism 7 includes a platform 71, which is located outside the lifting plate 6. Two bolts 72 are threaded inside the platform 71. The lifting plate 6 is slidably installed outside the two vertical columns 4 and inside the vertical plate 3. Two rotating shafts 73 are rotatably installed inside the platform 71. Extension plates 74 are fixedly installed outside each of the two rotating shafts 73. A spring 75 is fixedly installed inside the platform 71. A control plate 76 is fixedly installed at the end of the spring 75 away from the platform 71. Two limiting posts 77 are fixedly installed on the side of the control plate 76 near the platform 71. Two inserts 78 are fixedly installed on the side of the control plate 76 near the limiting posts 77. The inserts 78 are inserted into the rectangular grooves of the rotating shafts 73, so that the extension plates 74 are fixed horizontally, making the extension plates 74 flush with the top of the platform 71, thereby expanding the experimental operating area.

[0030] Furthermore, the insert 78 is inserted into the inside of the rotating shaft 73, the extension plate 74 is movably installed inside the platform 71, and both bolts 72 are threaded inside the lifting plate 6, which facilitates the replacement of the damaged platform 71 and its connected mechanism.

[0031] Furthermore, the limiting post 77 is slidably installed inside the platform 71, and the control plate 76 is slidably installed inside the platform 71, driving the insertion block 78 to move.

[0032] Example 2:

[0033] Please see Figure 5 Furthermore, in conjunction with Embodiment 1, the auxiliary support mechanism 8 includes two limiting plates 81, both of which are fixedly installed at the bottom of the lifting plate 6. Two support rods 82 are rotatably installed inside the lifting plate 6. Springs 83 are fixedly installed inside each of the two support rods 82. Support rod 84 is fixedly installed at the end of spring 83 away from support rod 82. Spring 85 is fixedly installed at the bottom of support rod 84. Insertion post 86 is fixedly installed at the end of spring 85 away from support rod 84. Insertion holes 87 are provided inside the platform 71 and the extension plate 74, so that the position of support rod 82 is fixed after rotation.

[0034] Furthermore, the insertion post 86 passes through the second support rod 84 and is inserted into the inside of the insertion hole 87. The second support rod 84 is slidably installed inside the first support rod 82, so that with the cooperation of the limiting plate 81 and the second support rod 84, the platform 71 and the extension plate 74 are further supported, making them more stable and providing stronger support during use.

[0035] Furthermore, the first support rod 82 contacts the limiting plate 81, and the control plate 76 and the corresponding positions of the second support rod 84 are provided with placement grooves to facilitate the pre-positioning of the second support rod 84 and to facilitate the insertion of the insertion post 86 into the insertion hole 87 of the platform 71.

[0036] In actual operation, when this device is in use, rotating the adjusting screw 5 causes the lifting plate 6 to be threaded onto the outside of the adjusting screw 5 for raising and lowering, thereby driving the platform 71 to rise and fall. After adjusting the platform 71 to a suitable height, pulling the control plate 76 causes the insert 78 to disengage from the rectangular slot of the rotating shaft 73. At this time, the spring 75 is stretched, initially in a compressed state, and the limiting post 77 slides inside the platform 71, making the movement of the control plate 76 more stable. Rotating the extension plate 74 to a horizontal position, and then releasing the control plate 76, the spring 75 rebounds and drives the control plate 76 to reset, causing the insert 78 to re-insert into the rectangular slot of the rotating shaft 73. After the extension plate 74 is horizontal, it is fixed, making the extension plate 74 flush with the top of the platform 71, thus expanding the experimental operating area and facilitating the placement of more and larger teaching aids for experimental operations. When not in use, the extension plate 74 can be placed vertically for storage, preventing teaching aids from falling and being damaged due to the small top area of ​​the platform 71. The larger top area of ​​the platform 71 also prevents damage during experiments. The issue of row placement taking up storage space is addressed by placing support rod 2 84 in the slot of control plate 76 when not in use. At this time, spring 2 83 is compressed, pulling down the insert 86 to disengage it from the insertion hole 87 of platform 71, causing spring 3 85 to stretch. Spring 3 85 is initially compressed. Support rod 1 82 is rotated until it contacts and engages with limit plate 81, then the insert 86 is released, causing spring 3 85 to rebound and insert the insert 86 into the insertion hole 87 of extension plate 74, thus allowing support rod 2 84 to... 4 is set at the bottom of the extension plate 74, while the support rod 82 is set at the bottom of the platform 71 and the extension plate 74. With the cooperation of the limiting plate 81 and the support rod 84, the platform 71 and the extension plate 74 are further supported, making them more stable and providing stronger support during use. This also avoids the problem of the platform 71 and the extension plate 74 tilting or deforming or even being damaged due to the weight of the teaching aids. When the platform 71 and its connected mechanism are damaged, they can be replaced by bolts 72, which is more convenient.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An extendable lifting platform for experiments, comprising a base (1), characterized in that: Support columns (2) are fixedly installed at the four corners of the bottom of the base (1). A vertical plate (3) is fixedly installed at the top of the base (1). A vertical column (4) is fixedly installed inside the vertical plate (3). An adjusting screw (5) is rotatably installed inside the vertical plate (3). A lifting plate (6) is threaded on the outside of the adjusting screw (5). An unfolding mechanism (7) is provided on the outside of the lifting plate (6). An auxiliary support mechanism (8) is provided inside the lifting plate (6). The unfolding mechanism (7) includes a platform (71) which is located outside the lifting plate (6). The lifting plate (6) is slidably installed outside the two vertical columns (4) and inside the vertical plate (3). Two bolts (72) are threaded inside the platform (71). Two rotating shafts (73) are rotatably installed inside the platform (71). Extension plates (74) are fixedly installed outside the two rotating shafts (73). A spring (75) is fixedly installed inside the platform (71). A control plate (76) is fixedly installed at the end of the spring (75) away from the platform (71). Two limiting posts (77) are fixedly installed on the side of the control plate (76) near the platform (71). Two inserts (78) are fixedly installed on the side of the control plate (76) near the limiting posts (77).

2. The experimental extendable lifting platform according to claim 1, characterized in that: The insert (78) is inserted into the inside of the rotating shaft (73), the extension plate (74) is movably installed inside the platform (71), and both bolts (72) are threaded into the inside of the lifting plate (6).

3. The extendable lifting platform for experiments according to claim 1, characterized in that: The limiting post (77) is slidably installed inside the platform (71), and the control plate (76) is slidably installed inside the platform (71).

4. The experimental extendable lifting platform according to claim 1, characterized in that: The auxiliary support mechanism (8) includes two limiting plates (81), both of which are fixedly installed at the bottom of the lifting plate (6). Two support rods (82) are rotatably installed inside the lifting plate (6). Springs (83) are fixedly installed inside the two support rods (82). Support rod (84) is fixedly installed at the end of spring (83) away from support rod (82). Spring (85) is fixedly installed at the bottom of support rod (84). Insertion post (86) is fixedly installed at the end of spring (85) away from support rod (84). Insertion holes (87) are provided inside the platform (71) and the extension plate (74).

5. The experimental extendable lifting platform according to claim 4, characterized in that: The insert (86) passes through the second support rod (84) and is inserted into the inside of the insertion hole (87). The second support rod (84) is slidably installed inside the first support rod (82).

6. The experimental extendable lifting platform according to claim 4, characterized in that: The first support rod (82) contacts the limiting plate (81), and the control plate (76) and the second support rod (84) are provided with placement slots at corresponding positions.

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