Base supporting device of movable elevator

Abstract

The utility model relates to the technical field of elevators, in particular to a base supporting device of a movable elevator, which comprises a supporting arm, a telescopic arm and a supporting leg, a positioning disc is arranged on the side wall of an elevator base, one end of the supporting arm is connected with the positioning disc through a rotating shaft, a positioning hole is arranged on the positioning disc, a guide groove is arranged in the supporting arm, and the telescopic arm is arranged in the guide groove. A first positioning pin and an ejector rod which are connected through a connecting rod are arranged in the guide groove, the upper end of the first positioning pin and the upper end of the ejector rod extend out of the upper end of the supporting arm, the first positioning pin is matched with the positioning hole, a button is arranged at the upper end of the ejector rod, and a first spring is connected between the lower end of the ejector rod and the bottom of the guide groove. A height-adjustable supporting leg is arranged at one end of the telescopic arm; the supporting arm is fixed, so that the stability in the supporting process is ensured, the use safety is ensured, meanwhile, the supporting arm is prevented from swinging in the walking process after being stored, and the use is more reliable.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to a base support device for a movable elevator. Background Technology

[0002] Mobile lifting platforms are vertical lifting devices with mobile chassis, widely used in construction, logistics, warehousing, factory maintenance, and other scenarios. Their core features are flexible mobility and height adjustment capabilities. Typically driven by electricity or hydraulics, they can be quickly deployed to work locations to complete the vertical transportation of personnel or goods.

[0003] Support legs are a critical component at the bottom of the lift, directly affecting operational safety. Currently, the support legs of mobile lifts are located on both sides of the base. For example, a power maintenance rack disclosed in patent CN221027538U is actually a scissor-type mobile lift. Support legs are symmetrically located on both sides of the vehicle body. The support legs are connected to the vehicle body via a pivot and are opened and closed by rotation. However, the support legs lack fixation after opening and closing. If rotation occurs during use, it will affect the complete operation. When closed, if the support legs have already rotated, they are prone to collisions, affecting passage safety. Utility Model Content

[0004] This utility model addresses the aforementioned shortcomings of existing technologies by providing a base support device for a movable lift. The support arm can be fixed at different angles, increasing the flexibility of use. By fixing the support arm, stability during the support process is ensured, thus guaranteeing safety. At the same time, it prevents the support arm from swinging during movement after storage, making it more reliable in use.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A base support device for a movable lift includes a support arm, a telescopic arm, and support legs. A positioning plate is provided on the side wall of the lift base. One end of the support arm is connected to the positioning plate via a rotating shaft. The positioning plate has a positioning hole. A guide groove is provided inside the support arm. A first positioning pin and a top rod are provided in the guide groove via a connecting rod. The upper ends of the first positioning pin and the top rod extend from the upper end of the support arm. The first positioning pin engages with the positioning hole. A button is provided at the upper end of the top rod. A first spring is connected between the lower end of the top rod and the bottom of the guide groove. The telescopic arm is slidably engaged with the lower end of the support arm. One end of the telescopic arm is provided with a height-adjustable support leg.

[0007] Preferably, the lower end of the support arm is provided with a sliding groove, the upper end of the telescopic arm is provided with a guide rail that cooperates with the sliding groove, the upper end of the guide rail is provided with a limiting groove, and the upper end of the support arm is provided with a locking bolt that cooperates with the limiting groove.

[0008] Preferably, the support leg includes a lifting rod connected to the telescopic arm, the lifting rod having an internally threaded rod, the upper end of the threaded rod having a handle, and the lower end of the threaded rod having a support block.

[0009] Preferably, the end of the telescopic arm is provided with a guide sleeve, the lifting rod is located inside the guide sleeve, the side wall of the lifting rod is provided with a positioning groove, and the side wall of the guide sleeve is provided with a second positioning pin that cooperates with the positioning groove.

[0010] Preferably, the lifting rod is provided with limiting plates at both ends.

[0011] Preferably, the end of the second positioning pin is provided with a pull block, and a second spring is connected between the pull block and the guide sleeve.

[0012] Preferably, the number of positioning slots is two.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The support arm of this utility model can be fixed at different angles, increasing the flexibility of use. By fixing the support arm, stability during the support process is ensured, ensuring safety of use. At the same time, it prevents the support arm from swinging during walking after storage, making it more reliable to use.

[0015] 2. This utility model can increase the support range and improve the stability of the support by using a telescopic arm. The telescopic arm can be stored, which can save space and is convenient to use.

[0016] 3. This utility model can quickly raise and lower the threaded rod by using a sliding lifting rod, which reduces the stroke of rotating the threaded rod during support and improves storage efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model in use;

[0018] Figure 2 for Figure 1 A magnified structural diagram at point A;

[0019] Figure 3 This is a schematic diagram of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the support arm structure;

[0021] Figure 5 This is a partial sectional view of the support arm;

[0022] Figure 6 This is a schematic diagram of the telescopic arm.

[0023] Figure 7 This is a structural diagram of the supporting leg;

[0024] Figure 8 This is a schematic diagram of the structure of the present invention after it has been stored.

[0025] In the diagram: 1-Lifting platform base; 101-Positioning plate; 102-Positioning hole; 2-Support arm; 201-Rotating shaft; 202-Locking bolt; 203-Slide groove; 204-First positioning pin; 205-Connecting rod; 206-Button; 207-Top rod; 208-Guide groove; 209-First spring; 3-Telescopic arm; 301-Guide rail; 302-Limiting groove; 303-Guide sleeve; 304-Second spring; 305-Pull block; 306-Second positioning pin; 4-Support leg; 401-Lifting rod; 402-Limiting plate; 403-Positioning groove; 404-Threaded rod; 405-Handle; 406-Support block. Detailed Implementation

[0026] 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.

[0027] like Figure 1 As shown, a support device for a lifting platform base 1 includes a support arm 2, a telescopic arm 3, and the support arm 2 is connected to the lifting platform base 1, as shown. Figure 3 As shown, the telescopic arm 3 and the support arm 2 slide together for length adjustment, and the support leg 4 is connected to the telescopic arm 3 and its height is adjustable.

[0028] like Figure 2 As shown, a positioning plate 101 is provided on the side wall of the elevator base 1. One end of the support arm 2 is connected to the positioning plate 101 via a rotating shaft 201. The positioning plate 101 is located at the upper end of the support arm 2. The upper end of the rotating shaft 201 is connected to the positioning plate 101, and the lower end of the rotating shaft 201 is connected to the elevator base 1 via a connecting block. The positioning plate 101 is provided with a positioning hole 102, and the support arm 2 is provided with a guide groove 208, such as... Figure 5As shown, the guide groove 208 is provided with a first positioning pin 204 and a push rod 207 connected by a connecting rod 205. The upper end of the first positioning pin 204 extends from the upper end of the support arm 2 and engages with the positioning hole 102. The upper end of the push rod 207 is provided with a button 206, which is located above the support arm 2. The length of the push rod 207 extending from the support arm 2 is greater than the length of the first positioning pin 204 extending from the support arm 2. A first spring 209 is connected between the lower end of the push rod 207 and the bottom of the guide groove 208. The first spring 209 pushes the push rod 207 upward and presses the button 206. The push rod 207 can drive the first positioning pin 204 to move downward. After the first positioning pin 204 disengages from the positioning hole 102, the support arm 2 is unlocked.

[0029] The telescopic arm 3 slides with the lower end of the support arm 2, such as... Figure 4 As shown, the lower end of the support arm 2 is provided with a sliding groove 203, and the upper end of the telescopic arm 3 is provided with a guide rail 301 that mates with the sliding groove 203, as shown. Figure 6 As shown, the upper end of the guide rail 301 is provided with a limiting groove 302, and the upper end of the support arm 2 is provided with a locking bolt 202 that cooperates with the limiting groove 302. The locking bolt 202 can limit the telescopic arm 3, and tightening the locking bolt 202 can fix the telescopic arm 3.

[0030] like Figure 7 As shown, the support leg 4 includes a lifting rod 401 connected to the telescopic arm 3. The lifting rod 401 has an internal threaded rod 404. The inner hole of the lifting rod 401 is provided with an internal thread. The upper end of the threaded rod 404 is provided with a handle 405, and the lower end of the threaded rod 404 is provided with a support block 406. Rotating the handle 405 can adjust the height of the support block 406.

[0031] The telescopic arm 3 is provided with a guide sleeve 303 at its end. The lifting rod 401 is located inside the guide sleeve 303. The side wall of the lifting rod 401 is provided with a positioning groove 403. There are two positioning grooves 403. The side wall of the guide sleeve 303 is provided with a second positioning pin 306 that cooperates with the positioning groove 403. The lifting rod 401 can be fixed by the second positioning pin 306 when it is raised or lowered. The end of the second positioning pin 306 is provided with a pull block 305. A second spring 304 is connected between the pull block 305 and the guide sleeve 303. Under the action of the second spring 304, the reliability of the cooperation between the second positioning pin 306 and the positioning groove 403 is ensured. Pulling the pull block 305 can pull the second positioning pin 306 out of the positioning groove 403. After releasing, the second positioning pin 306 returns to its original position.

[0032] Limiting plates 402 are provided at both ends of the lifting rod 401 to prevent the lifting rod 401 from separating from the guide sleeve 303.

[0033] In use, first, press button 206 to unlock. After rotating the support arm 2 to a suitable angle, release button 206 to allow the first positioning pin 204 to engage with the nearest positioning hole 102, fixing the support arm 2. Loosen the locking bolt 202, slide the telescopic arm 3 to its longest position, and then rotate the locking bolt 202 to fix the telescopic arm 3. Pull the pull block 305 to lower the lifting rod 401. After releasing the pull block 305, the second positioning pin 306 automatically engages with the upper positioning groove 403 under the action of the second spring 304 to fix the lifting rod 401. Rotate the handle 405 to adjust the height of the support block 406 so that the support block 406 touches the ground for support. Figure 8 As shown, after use, the lifting rod 401 is raised and fixed by the second positioning pin 306, the telescopic arm 3 is retracted and fixed by the locking bolt 202, the button 206 is pressed, the support arm 2 is rotated, and the support arm 2 is brought close to the lifting platform base 1. Then the button 206 is released, and the first positioning pin 204 cooperates with the positioning hole 102 to fix the support arm 2, thus completing the storage.

[0034] 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 base support arrangement for a mobile lift, characterised in that: The side wall of the elevator base is provided with a positioning disc, one end of the support arm is connected with the positioning disc through a rotating shaft, the positioning disc is provided with a positioning hole, a guide groove is arranged in the support arm, a first positioning pin and a jacking rod connected through a connecting rod are arranged in the guide groove, the upper end of the first positioning pin and the jacking rod extends from the upper end of the support arm, the first positioning pin is matched with the positioning hole, the upper end of the jacking rod is provided with a button, the lower end of the jacking rod is connected with the bottom of the guide groove through a first spring, the telescopic arm is in sliding fit with the lower end of the support arm, one end of the telescopic arm is provided with a height-adjustable support leg.

2. A base support arrangement for a mobile lift as claimed in claim 1, characterised in that: The lower end of the support arm is provided with a sliding groove, the upper end of the telescopic arm is provided with a guide rail matched with the sliding groove, the upper end of the guide rail is provided with a limiting groove, the upper end of the support arm is provided with a locking bolt matched with the limiting groove.

3. A base support arrangement for a mobile lift as defined in claim 1, wherein: The support leg comprises a lifting rod connected with the telescopic arm, a threaded rod is in screw fit with the lifting rod, the upper end of the threaded rod is provided with a handle, and the lower end of the threaded rod is provided with a support block.

4. A base support arrangement for a mobile lift as claimed in claim 3, characterised in that: The end of the telescopic arm is provided with a guide sleeve, the lifting rod is located in the guide sleeve, the side wall of the lifting rod is provided with a positioning groove, and the side wall of the guide sleeve is provided with a second positioning pin matched with the positioning groove.

5. A base support arrangement for a mobile lift as claimed in claim 4, characterised in that: The two ends of the lifting rod are provided with limiting plates.

6. A base support arrangement for a mobile lift as claimed in claim 4, characterised in that: The end of the second positioning pin is provided with a pull block, and the pull block is connected with the guide sleeve through a second spring.

7. A base support arrangement for a mobile lift as defined in claim 4, wherein: The number of the positioning grooves is two.

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