Teaching workbench convenient to move

Abstract

The utility model relates to the field of teaching equipment, in particular to a teaching workbench convenient to move, which comprises a workbench main body and a movement adjusting mechanism. When the teaching workbench is moved, the second supporting rod only needs to drive the first supporting rod to rotate downwards, in the process, the fixing pin extrudes the hook, the hook rotates around the rotating pin to avoid, and the hook spring is stretched until the second supporting rod is overlapped above the first supporting rod, at the moment, the fixing pin is separated from the hook, and the hook is reset and hooked on the outer side of the fixing pin under the action of the hook spring. The second supporting rod and the first supporting rod are fixed and kept horizontal, at the moment, the workbench body is placed on the ground through the universal wheels, and movement of the teaching workbench is facilitated. When the teaching workbench is moved in place, the hook can be shifted to be separated from the fixing pin, the second supporting rod and the first supporting rod are separated and rotate upwards at the moment, the workbench body is arranged on the ground through the supporting legs, stability is high, and the workbench body is not prone to sliding.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment, and in particular to a teaching workbench that is easy to move. Background Technology

[0002] Teaching workbenches are frequently used tools in the teaching process. Traditional teaching workbenches are usually fixed in the classroom and lack flexibility. Existing movable teaching workbenches may be moved by replacing fixed legs with wheels, but the wheels are prone to rolling during teaching, which leads to insufficient stability of the workbench. Utility Model Content

[0003] In view of the shortcomings mentioned above, this utility model provides a teaching workbench that is easy to move.

[0004] The present invention adopts the following technical solution:

[0005] A portable teaching workbench, characterized in that it comprises a main body with four legs distributed at the four corners of the main body, the tabletop of the main body being used for teaching, and wherein each end of the main body has a movable adjustment mechanism located between two legs at each end, the movable adjustment mechanism comprising:

[0006] The first support rod has its left end hinged to the support leg surface on the left side of each end of the workbench body, and a fixing pin is provided on the right side of the first support rod.

[0007] The second support rod has its right end hinged to the support leg surface on the right side of each end of the workbench body. The left side of the second support rod is provided with a rotating pin, a limiting pin and a connecting pin from left to right, and the rotating pin, the limiting pin and the connecting pin are arranged from bottom to top.

[0008] A hook is fitted around the outside of the rotating pin and rotates. A connecting hole is passed through the hook and is located above the rotating pin.

[0009] A hook spring, with its two ends hooked to the outside of the connecting pin and the inside of the connecting hole, and the hook spring located above the limiting pin. Under the pull of the hook spring, the right side of the hook abuts against the surface of the limiting pin.

[0010] The bottom surfaces of the first and second support rods are equipped with casters. The second support rod is located above the first support rod. When both the second and first support rods rotate to a horizontal position, the second support rod overlaps the first support rod. The hook is hooked on the outside of the fixing pin, and the main body of the workbench is placed on the ground via the casters. When the second and first support rods separate and both rotate upwards, the main body of the workbench is placed on the ground via the support legs.

[0011] As a further improvement, several drawers are provided on one side of the front of the main body of the workbench, and a receiving groove is provided on the other side of the front of the main body of the workbench. A cabinet door is hinged at the opening of the receiving groove, and the cabinet door is used to open and close the receiving groove.

[0012] As a further improvement, each of the support legs has a downwardly recessed positioning hole on its bottom surface, and each support leg has a foot pad underneath it. The upper surface of the foot pad has a positioning element that is adapted to the positioning hole and moves up and down within the positioning hole. The upper surface of the positioning element has a mounting groove, and a spring is installed in the mounting groove. The two ends of the spring are respectively connected to the bottom of the mounting groove and the bottom of the positioning hole. When the main body of the workbench is placed on the ground by the support legs, the support legs overlap with the foot pads, and the springs are in a compressed state. When the main body of the workbench is placed on the ground by the casters, the foot pads are suspended below the support legs, and there is a gap between the bottom surface of the foot pads and the ground.

[0013] As a further improvement, the foot pad is made of an elastic material.

[0014] As a further improvement, both the first and second support rods are hinged to the surface of the support legs.

[0015] As a further improvement, the bottom surface of the second support rod is provided with a downward protruding boss, and the caster wheel on the second support rod is mounted on the boss.

[0016] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: When moving the teaching workbench, simply step down on the second support rod to make it rotate downwards, causing the second support rod to drive the first support rod to rotate. During this process, the fixing pin presses against the hook, and the hook rotates around the rotating pin to avoid it, stretching the hook spring until both the second and first support rods rotate to a horizontal position, with the second support rod overlapping the first support rod. At this point, the fixing pin disengages from the hook, and the hook returns to its original position outside the fixing pin under the elastic restoring force of the hook spring, keeping the second and first support rods fixed horizontally. At this time, the main body of the workbench is placed on the ground via the casters, facilitating the movement of the teaching workbench. After the teaching workbench is moved into place, the hook can be moved to disengage from the fixing pin. At this time, the second and first support rods separate and both rotate upwards, while the main body of the workbench is placed on the ground via the support legs, ensuring high stability and preventing slippage. This utility model, through the lifting casters, not only solves the problem of the teaching workbench being fixedly installed in the classroom and inconvenient to move during use, but also solves the problem of the casters easily rolling during teaching, resulting in insufficient stability of the teaching workbench. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the main body of the workbench.

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of A in the middle.

[0020] Figure 4 This is a three-dimensional structural diagram of the movable adjustment mechanism.

[0021] Figure 5 This is a schematic diagram of the upright structure of the first support rod.

[0022] Figure 6 This is a three-dimensional structural diagram of the second support rod, hook, and hook spring.

[0023] Figure 7 This is a three-dimensional structural diagram of the workbench body placed on the ground via the aforementioned legs. Detailed Implementation

[0024] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0025] As attached Figure 1 and Figure 2As shown, a portable teaching workbench includes a main body 1 with four legs 11 positioned at its four corners. The main body 1 rests on the ground via the legs 11. The workbench surface is used for teaching. Several drawers 12 are located on one side of the front of the main body 1, and a storage slot 13 is provided on the other side. A cabinet door 14 is hinged to the opening of the storage slot 13, allowing it to be opened and closed. In use, both the drawers 12 and the storage slot 13 can be used to store teaching materials, while the cabinet door 14 effectively prevents dust accumulation.

[0026] As attached Figure 1 , Figure 4 , Figure 5 and Figure 6 As shown, the bottom ends of both ends of the workbench body 1 are provided with a moving adjustment mechanism 2. The moving adjustment mechanism 2 is located between the two legs 11 at each end of the workbench body 1. The moving adjustment mechanism 2 includes a first support rod 21, a second support rod 22, a hook 24 and a hook spring 26. The left end of the first support rod 21 and the right end of the second support rod 22 are respectively hinged to the surfaces of the two legs 11 at each end of the workbench body 1 via hinges 25. The second support rod 22 is located above the first support rod 21, and both the bottom surfaces of the first support rod 21 and the second support rod 22 are provided with casters 23. The right side of the first support rod 21 is provided with a fixing pin 211. The left side of the second support rod 22 is provided with a rotating pin 222, a limiting pin 223 and a connecting pin 224 from left to right. The rotating pin 222, the limiting pin 223 and the connecting pin 224 are arranged from bottom to top. The hook 24 is sleeved on the outside of the rotating pin 222 and rotates. The hook 24 has a connecting hole 242 through it. The connecting hole 242 is located above the rotating pin 222. The two ends of the hook spring 26 are hooked on the outside of the connecting pin 224 and inside the connecting hole 242, respectively. The hook spring 26 is located above the limiting pin 223. When in use, under the pulling force of the hook spring 26, the right side of the hook 24 is pressed against the surface of the limit pin 223.

[0027] As attached Figure 1 , Figure 4 and Figure 7As shown, when the teaching workbench needs to be moved, simply step down on the second support rod 22 to make the second support rod 22 drive the first support rod 21 to rotate downward around the hinge 25. During the process, the fixing pin 211 first touches the first inclined surface 242 at the bottom of the hook 24. Using the guiding effect of the first inclined surface 242, after the fixing pin 211 squeezes the hook 24, the hook 24 will rotate around the rotating pin 222 to avoid it, while stretching the hook spring 26 until the second support rod 22 and the first support rod 21 both rotate to the horizontal, and the second support rod 22 overlaps on the first support rod 21. At this time, the fixing pin 211 disengages from the first inclined surface 242, and the hook 24 returns to its original position under the elastic restoring force of the hook spring 26, abutting against the surface of the limit pin 223. The hook 24 is hooked on the outside of the fixing pin 211, so that the second support rod 22 and the first support rod 21 are fixed and kept horizontal. At this time, the main body of the workbench 1 is placed on the ground by the casters 23. Once the teaching workbench is in place, hook 24 can be moved, causing it to rotate around pivot pin 222 and disengage from fixing pin 211. Under the weight of the workbench body 1, it falls until it rests on the ground via support legs 11. During this process, the second support rod 22 separates from the first support rod 21, both rotating upwards. This invention, through the lifting caster 23, not only solves the problem of the teaching workbench being fixed in the classroom and inconvenient to move, but also addresses the issue of the caster 23 easily rolling during teaching, resulting in insufficient stability of the workbench. Specifically, the bottom surface of the second support rod 22 has a downward-protruding boss 221, on which the caster 23 is mounted. This boss 221 ensures that when the second support rod 22 overlaps the first support rod 21, the caster 23 on both the second and first support rods are on the same horizontal plane, ensuring the workbench body 1 remains horizontal.

[0028] It is worth mentioning that, as shown in the attached document Figure 3 and Figure 7As shown, each of the support legs 11 has a downwardly recessed positioning hole on its bottom surface, and each support leg 11 has a foot pad 15 underneath it. The upper surface of each foot pad 15 has a positioning element 16, which is adapted to the positioning hole and moves up and down within the positioning hole. The upper surface of the positioning element 16 has a mounting groove 17, and a spring 18 is installed within the mounting groove 17. The two ends of the spring 18 are connected to the bottom of the mounting groove 17 and the bottom of the positioning hole, respectively. When the workbench body 1 is placed on the ground via the casters 23, the foot pad 15 is suspended below the support leg 11 by the spring 18, and there is a gap between the bottom surface of the foot pad 15 and the ground to prevent the foot pad 15 from dragging on the ground and affecting the movement of the workbench body 1. When the second support rod 22 separates from the first support rod 21, it drives the caster wheel 23 to rotate upwards, allowing the workbench body 1 to be placed on the ground via the support legs 11. During the landing process, the foot pads 15 first contact the ground, and then the workbench body 1 continues to move downwards under the influence of gravity, compressing the springs 18 until the support legs 11 overlap with the foot pads 15. At this point, it ensures that the workbench body 1 can be placed stably on the ground, preventing wobbling during use and ensuring the stability of teaching. The springs 18 act as a buffer and shock absorber during the landing process of the workbench body 1, reducing the impact force on the workbench body 1 during the lifting and lowering of the caster wheel 23, thus better protecting the precision instruments or liquid bottles placed inside the workbench body 1. The foot pads 15 are made of elastic material, specifically synthetic rubber, which has good buffering and shock absorption functions, further reducing the impact force on the workbench body 1.

[0029] In summary, when moving the teaching workbench, this utility model only requires pressing down on the second support rod 22, causing it to rotate the first support rod 21 downwards. During this process, the fixing pin 211 presses against the hook 24, which rotates around the rotating pin 222 to avoid it, stretching the hook spring 26 until both the second support rod 22 and the first support rod 21 rotate to a horizontal position, with the second support rod 22 overlapping the first support rod 21. At this point, the fixing pin 211 disengages from the hook 24, and the hook 24, under the elastic restoring force of the hook spring 26, returns to its original position outside the fixing pin 211, thus fixing the second support rod 22 and the first support rod 21 horizontally. At this time, the main body of the workbench 1 is placed on the ground via the casters 23, facilitating the movement of the teaching workbench. Once the teaching workbench is in place, the hook 24 can be moved to disengage from the fixing pin 211. At this time, the second support rod 22 and the first support rod 21 separate and both rotate upwards, while the main body of the workbench 1 is placed on the ground via the support legs 11, ensuring high stability and preventing slippage. This invention not only solves the problem of the teaching workbench being fixedly installed in the classroom and inconvenient to move when in use by using the lifting caster 23, but also solves the problem of the caster 23 easily rolling during the teaching process, resulting in insufficient stability of the teaching workbench.

[0030] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A portable teaching workbench, comprising a main body with four legs distributed at the four corners of the main body, the workbench surface being used for teaching, characterized in that... The bottom ends of both ends of the workbench body are provided with a movable adjustment mechanism, which is located between the two support legs at each end of the workbench body. The movable adjustment mechanism includes: The first support rod has its left end hinged to the support leg surface on the left side of each end of the workbench body, and a fixing pin is provided on the right side of the first support rod. The second support rod has its right end hinged to the support leg surface on the right side of each end of the workbench body. The left side of the second support rod is provided with a rotating pin, a limiting pin and a connecting pin from left to right, and the rotating pin, the limiting pin and the connecting pin are arranged from bottom to top. A hook is fitted around the outside of the rotating pin and rotates. A connecting hole is passed through the hook and is located above the rotating pin. A hook spring, with its two ends hooked to the outside of the connecting pin and the inside of the connecting hole, and the hook spring located above the limiting pin. Under the pull of the hook spring, the right side of the hook abuts against the surface of the limiting pin. The bottom surfaces of the first and second support rods are equipped with casters. The second support rod is located above the first support rod. When both the second and first support rods rotate to a horizontal position, the second support rod overlaps the first support rod. The hook is hooked on the outside of the fixing pin, and the main body of the workbench is placed on the ground via the casters. When the second and first support rods separate and both rotate upwards, the main body of the workbench is placed on the ground via the support legs.

2. The portable teaching workbench as described in claim 1, characterized in that: Several drawers are provided on one side of the front of the main body of the workbench, and a receiving groove is provided on the other side of the front of the main body of the workbench. A cabinet door is hinged at the opening of the receiving groove, and the cabinet door is used to open and close the receiving groove.

3. The portable teaching workbench as described in claim 1, characterized in that: Each of the support legs has a recessed positioning hole on its bottom surface, and each support leg has a foot pad underneath. The upper surface of the foot pad has a positioning element that fits into the positioning hole and moves up and down within the positioning hole. The upper surface of the positioning element has a mounting groove, and a spring is installed in the mounting groove. The two ends of the spring are respectively connected to the bottom of the mounting groove and the bottom of the positioning hole. When the workbench body is placed on the ground via the support legs, the support legs overlap with the foot pads, and the springs are in a compressed state. When the workbench body is placed on the ground via the casters, the foot pads are suspended below the support legs, and there is a gap between the bottom surface of the foot pads and the ground.

4. A portable teaching workbench as described in claim 3, characterized in that: The foot pads are made of elastic material.

5. A portable teaching workbench as described in claim 1, characterized in that: Both the first and second support rods are hinged to the surface of the support legs.

6. A portable teaching workbench as described in claim 1, characterized in that: The bottom surface of the second support rod is provided with a downward protruding boss, and the universal wheel on the second support rod is mounted on the boss.

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