Automobile crane supporting leg locking device based on aerial conveying

Abstract

The utility model relates to the technical field of crane supporting legs, in particular to an automobile crane supporting leg locking device based on aerial conveying, which comprises a support and a supporting disc arranged at the bottom of the support, first supporting plates are fixedly mounted on two sides of the support, and a second supporting plate is further fixedly mounted at the bottom of the support. The driving assemblies are arranged on the first supporting plate and the second supporting plate, the driving assemblies on the two first supporting plates can drive the two L-shaped rods to move upwards, one L-shaped rod can hook a fixed rod of the telescopic rod, the other L-shaped rod can hook a telescopic rod body of the telescopic rod, and therefore the telescopic rod is locked, and the telescopic rod is locked. Then the driving assembly on the second supporting plate can drive the side rod to limit the telescopic rod, the supporting disc can abut against the end, away from the crane, of the telescopic rod body, the telescopic distance of the telescopic rod is locked, the whole supporting leg is easy and convenient to use and operate, and the stability of supporting the crane after the supporting leg is unfolded for use can be effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of crane outrigger technology, specifically to a locking device for the outriggers of a truck crane based on aerial transport. Background Technology

[0002] Outriggers of a truck crane are retractable support devices installed at the bottom of a truck crane. They provide stable support and force during lifting operations. Although truck cranes are generally used for ground operations, in certain high-altitude operations, such as hoisting or high-rise building work, truck cranes are used to lift heavy objects to higher positions. In these cases, the outriggers play a crucial role because they ensure the crane remains stable during hoisting and prevents tilting. Currently, some crane outriggers are directly installed on the crane and then extended using components such as telescopic rods. When extended to the appropriate position, they are locked into the telescopic rods using pins or other fasteners. However, in actual use, the outriggers bear significant pressure, and the crane may sway during operation. Therefore, the pins may loosen, affecting the stability of the outriggers' support for the crane and posing corresponding safety hazards.

[0003] In view of this, we propose a locking device for the outriggers of a truck crane based on aerial transport. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a vehicle crane outrigger locking device based on aerial transport, which can effectively solve the problem that the outriggers are subjected to excessive pressure or shake during crane operation, resulting in loose pins, affecting the stability of the outriggers supporting the crane, and posing a safety hazard.

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

[0006] This utility model provides a locking device for the outriggers of a truck crane based on aerial transport, including a bracket and a support plate disposed at the bottom of the bracket, and a fixing plate fixedly installed at the top of the bracket. First support plates are fixedly installed on both sides of the bracket, and a second support plate is fixedly installed at the bottom of the bracket.

[0007] Among them, a drive component is provided on the side of each of the two sets of first support plates that are far apart from each other, and a drive component is also provided on the bottom of the second support plate.

[0008] Both sets of first support plates are fixedly mounted with L-shaped rods via drive components, and the second support plate is fixedly mounted with side rods via drive components.

[0009] Furthermore, the drive assembly includes three sets of first cylinders, which are rotatably mounted on one side of the two sets of first support plates and the bottom of the second support plate, respectively.

[0010] Furthermore, the output ends of the three sets of first cylinders are rotatably mounted with first connecting rods and second connecting rods, and the ends of the three sets of first connecting rods away from the first cylinders are respectively rotatably mounted on one side of the two sets of first support plates and the bottom of the second support plate.

[0011] Furthermore, each of the three sets of second connecting rods has a first sliding frame rotatably mounted on the end furthest from the first cylinder, and each of the three sets of first sliding frames has a first slide rail slidably mounted on the inner cavity sidewall. The three sets of first slide rails are respectively fixedly mounted on one side of the two sets of first support plates and the bottom of the second support plate.

[0012] Furthermore, rollers are rotatably mounted on the inner wall of both sets of L-shaped rods, and rollers are also rotatably mounted on one side of the side rod, with a fixing block fixedly mounted on the end of the side rod near the roller.

[0013] Furthermore, a second slide rail is fixedly installed on the surface of the bracket, a second sliding frame is slidably installed on the surface of the second slide rail, a second cylinder is fixedly installed at the bottom of the second sliding frame, and the output end of the second cylinder is fixedly installed on one side of the support plate.

[0014] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0015] This invention features driving components mounted on a first and second support plate. The two sets of driving components on the first support plate move the L-shaped rod upwards, hooking it at two positions on the telescopic rod used to extend the outriggers. One hook engages the fixed rod of the telescopic rod, and the other engages the retractable rod body, thus locking the telescopic rod. The driving components on the second support plate then move the side rod to limit the telescopic rod's position, and a support plate abuts the end of the retractable rod furthest from the crane, further locking the telescopic rod's retractable distance. The overall design is simple to use and effectively ensures the stability of the outriggers' support for the crane after deployment. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a partial structural diagram of the second support plate and related components of this utility model;

[0019] Figure 3 This is a partial structural diagram of the drive component and related components of this utility model.

[0020] The labels in the diagram represent: 1. Bracket; 2. First support plate;

[0021] 3. Drive assembly; 301. First cylinder; 302. First connecting rod; 303. Second connecting rod; 304. First sliding frame; 305. First slide rail;

[0022] 4. L-shaped rod; 5. Fixed plate; 6. Second slide rail; 7. Second sliding frame; 8. Support plate; 9. Second cylinder; 10. Roller; 11. Second support plate; 12. Side rod; 13. Fixed block. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] The present invention will be further described below with reference to the embodiments.

[0025] A locking device for the outriggers of a truck crane based on aerial transport includes a bracket 1 and a support plate 8 disposed at the bottom of the bracket 1, and a fixing plate 5 fixedly installed at the top of the bracket 1. First support plates 2 are fixedly installed on both sides of the bracket 1, and a second support plate 11 is fixedly installed at the bottom of the bracket 1. A drive assembly 3 is provided on the side of the two sets of first support plates 2 that are far apart from each other, and a drive assembly 3 is also provided at the bottom of the second support plate 11. L-shaped rods 4 are fixedly installed on both sets of first support plates 2 through the drive assembly 3, and side rods 12 are fixedly installed on the second support plate 11 through the drive assembly 3.

[0026] Furthermore, rollers 10 are rotatably mounted on the inner wall of both sets of L-shaped rods 4, and rollers 10 are also rotatably mounted on one side of the side rod 12. A fixing block 13 is also fixedly mounted on the end of the side rod 12 near the rollers 10. A second slide rail 6 is also fixedly mounted on the surface of the bracket 1. A second sliding frame 7 is slidably mounted on the surface of the second slide rail 6. A second cylinder 9 is fixedly mounted on the bottom of the second sliding frame 7. The output end of the second cylinder 9 is fixedly mounted on one side of the support plate 8.

[0027] Specifically, firstly, the fixed plate 5 can be used to fix the entire device on the crane. The drive components 3 on the two sets of first support plates 2 can drive the two sets of L-shaped rods 4 to move upward, thereby hooking the telescopic rods of the outriggers respectively. One can hook the telescopic rod of the telescopic rod, and the other can hook the fixed rod of the telescopic rod. Since the axial distance between the two sets of L-shaped rods 4 is fixed, after hooking the telescopic rod, the telescopic rod can be locked to prevent the telescopic rod from further extending or retracting. At the same time, the drive components 3 on the second support plate 11 can drive the side rod 12 to move in the direction of the telescopic rod. The fixing block 13 on the side rod 12 can abut against the fixed rod of the telescopic rod. When the two sets of L-shaped rods 4 have not yet hooked the telescopic rod and the telescopic rod is still unfolding, the rollers 10 on the side rod 12 and the two sets of L-shaped rods 4 can facilitate the extension and retraction of the telescopic rod and guide and limit the extension and retraction direction of the telescopic rod.

[0028] Furthermore, after the two sets of L-shaped rods 4 hook onto the telescopic rod, the second sliding frame 7 on the second slide rail 6 can be moved towards the telescopic rod. The support plate 8 is used to hold the telescopic rod away from the crane to prevent it from extending further. The second cylinder 9 can drive the support plate 8 to move axially further. This is applicable to telescopic rods of different sizes or when the telescopic rod is extended to different lengths. After the support plate 8 holds the telescopic rod, the second sliding frame 7 can be fixed to the corresponding position of the bracket 1 with bolts, thereby further locking the telescopic rod used to deploy the outriggers.

[0029] Specifically, the drive assembly 3 includes three sets of first cylinders 301. The three sets of first cylinders 301 are rotatably mounted on one side of the two sets of first support plates 2 and the bottom of the second support plate 11. The output ends of the three sets of first cylinders 301 are rotatably mounted with first connecting rods 302 and second connecting rods 303. The ends of the three sets of first connecting rods 302 away from the first cylinders 301 are rotatably mounted on one side of the two sets of first support plates 2 and the bottom of the second support plate 11. The ends of the three sets of second connecting rods 303 away from the first cylinders 301 are rotatably mounted with first sliding frames 304. The inner cavity sidewalls of the three sets of first sliding frames 304 are slidably mounted with first slide rails 305. The three sets of first slide rails 305 are fixedly mounted on one side of the two sets of first support plates 2 and the bottom of the second support plate 11.

[0030] The output of the first cylinder 301 can drive the first connecting rod 302 and the second connecting rod 303, which are rotatably mounted at the output end, to rotate. Since the length of the first connecting rod 302 is fixed, when the first connecting rod 302 and the second connecting rod 303 rotate, the second connecting rod 303 can drive the first sliding frame 304, which is slidably mounted on the first slide rail 305, to move, thereby driving the side rod 12 and the two L-shaped rods 4 to move.

[0031] The working principle of this utility model is as follows: The output of the first cylinder 301 drives the first connecting rod 302 and the second connecting rod 303, which are rotatably mounted at the output end, to rotate. Since the length of the first connecting rod 302 is fixed, when the first connecting rod 302 and the second connecting rod 303 rotate, the second connecting rod 303 drives the first sliding frame 304, which is slidably mounted on the first slide rail 305, to move. This moves the side rod 12 and the two L-shaped rods 4 on both sides, causing the two sets of L-shaped rods 4 to move upwards, thereby hooking onto the telescopic rods of the support legs. One hooks onto the telescopic rod's retractable body, and the other hooks onto the fixed body of the telescopic rod. Since the axial distance between the two sets of L-shaped rods 4 is fixed, after hooking the telescopic rod, it can be locked to prevent further extension or retraction. Simultaneously, the drive assembly 3 on the second support plate 11 drives the side rod 12 to extend... The telescopic rod moves in the direction of retraction. The fixing block 13 on the side rod 12 can hold the fixed rod body of the telescopic rod. When the two sets of L-shaped rods 4 have not yet hooked the telescopic rod and the telescopic rod is still unfolding, the rollers 10 on the side rod 12 and the two sets of L-shaped rods 4 facilitate the extension and retraction of the telescopic rod and can guide and limit the extension and retraction direction of the telescopic rod. When the two sets of L-shaped rods 4 hook the telescopic rod, the second sliding frame 7 on the second slide rail 6 can be moved in the direction of the telescopic rod. The support plate 8 holds the side of the telescopic rod away from the crane to prevent the telescopic rod from extending further. The second cylinder 9 can drive the support plate 8 to move further axially. It can be used for telescopic rods of different sizes or when the telescopic rod is extended to different lengths. When the support plate 8 holds the telescopic rod, the second sliding frame 7 can be fixed to the corresponding position of the bracket 1 with bolts, thereby further locking the telescopic rod used to unfold the outriggers.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A locking device for the outriggers of a truck crane based on aerial transport, characterized in that, include: The bracket (1) and the support plate (8) set at the bottom of the bracket (1), and the fixed plate (5) fixedly installed at the top of the bracket (1), the first support plate (2) is fixedly installed on both sides of the bracket (1), and the second support plate (11) is fixedly installed at the bottom of the bracket (1). Among them, the two sets of first support plates (2) are provided with drive components (3) on the side that is far apart from each other, and the bottom of the second support plate (11) is also provided with drive components (3). Both sets of first support plates (2) are fixedly mounted with L-shaped rods (4) via drive assembly (3), and the second support plate (11) is fixedly mounted with side rods (12) via drive assembly (3).

2. The outrigger locking device for a truck crane based on aerial transport according to claim 1, characterized in that, The drive assembly (3) includes three sets of first cylinders (301), which are rotatably mounted on one side of the two sets of first support plates (2) and the bottom of the second support plate (11).

3. The outrigger locking device for a truck crane based on aerial transport according to claim 2, characterized in that, The output ends of the three sets of first cylinders (301) are rotatably mounted with first connecting rods (302) and second connecting rods (303). The ends of the three sets of first connecting rods (302) away from the first cylinders (301) are respectively rotatably mounted on one side of the two sets of first support plates (2) and the bottom of the second support plate (11).

4. The outrigger locking device for a truck crane based on aerial transport according to claim 3, characterized in that, The ends of the three sets of second connecting rods (303) away from the first cylinder (301) are each rotatably mounted with a first sliding frame (304). The inner sidewalls of the three sets of first sliding frames (304) are each slidably mounted with a first slide rail (305). The three sets of first slide rails (305) are respectively fixedly mounted on one side of the two sets of first support plates (2) and the bottom of the second support plate (11).

5. A vehicle crane outrigger locking device based on aerial transport according to claim 4, characterized in that, Rollers (10) are rotatably mounted on the inner wall of both sets of L-shaped rods (4), and rollers (10) are also rotatably mounted on one side of the side rod (12). A fixing block (13) is also fixedly mounted on the end of the side rod (12) near the roller (10).

6. A locking device for the outriggers of a truck crane based on aerial transport, as described in claim 5, is characterized in that, A second slide rail (6) is fixedly installed on the surface of the bracket (1), and a second sliding frame (7) is slidably installed on the surface of the second slide rail (6). A second cylinder (9) is fixedly installed at the bottom of the second sliding frame (7), and the output end of the second cylinder (9) is fixedly installed on one side of the support plate (8).

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