Supporting leg device for engineering vehicle

Abstract

The utility model relates to the technical field of auxiliary supporting legs, in particular to a supporting leg device for an engineering vehicle, which comprises two supporting leg main bodies and a supporting connecting frame, the bottoms of the supporting leg main bodies are telescopically connected with telescopic legs, and adjusting mechanisms are arranged on the supporting leg main bodies. Each adjusting mechanism comprises a self-locking rocker, a first bearing, a second bearing, a third bearing, a threaded rod and a transmission rod, the first bearings are fixed to the two sides of each supporting leg body, the inner rings of the two first bearings are wrapped with connecting sleeves, a transmission gear is fixed to one end of each connecting sleeve, and through synchronous adjustment of the telescopic legs on the two sides, the supporting legs can be adjusted to be stable. The operation process is simplified, the adjusting efficiency is improved, the operation time is greatly saved, through the design of the transmission rod and the transmission gear, when the self-locking rocker rotates, the adjusting mechanisms in the two supporting leg bodies can be driven to rotate synchronously, and therefore synchronous adjustment of the telescopic legs on the two sides is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to auxiliary support leg technical field, specifically say a support leg device for engineering vehicle. BACKGROUND

[0002] The main role of the mechanical support leg device is to provide support and stability for the mechanical self-unloading vehicle, to avoid instability of the mechanical self-unloading vehicle in the construction process due to working load, terrain and other factors. Simple support legs are needed to improve the stability of the mechanical self-unloading vehicle. Specifically, the mechanical support leg device can increase the contact area of the mechanical equipment and the ground, thereby improving the stability.

[0003] However, the adjustment mechanism of some support leg devices is relatively complex, and multiple components need to be adjusted manually, which not only consumes time and effort, but also has a slow response speed. Some support leg devices lack synchronization during adjustment, resulting in inconsistent extension of the two support legs, affecting overall stability. INVENTION CONTENTS

[0004] The purpose of the present application is to overcome the defects described in the background art, thereby realizing a support leg device for engineering vehicle. The support leg device simplifies the operation process, improves the adjustment efficiency, saves the operation time, and reduces the manufacturing cost and the difficulty of later maintenance with its simple mechanical transmission mechanism.

[0005] To achieve the above invention purpose, the technical scheme of the utility model is: a support leg device for engineering vehicle, comprising a support leg main body, a telescopic leg connected to the bottom of the support leg main body in a telescopic manner, and an adjustment mechanism provided on the support leg main body.

[0006] The adjustment mechanism comprises a self-locking rocker, a threaded rod and a transmission rod. Two first bearings are fixed to the two sides of each support leg main body, and the inner ring of the two first bearings is wrapped with a connecting sleeve. One end of each connecting sleeve is fixed with a transmission gear. The threaded rod is vertically rotatable in the support leg main body, and the outer surface of the threaded rod is sleeved with a gear disc. The two ends of the transmission rod penetrate into the first bearings in opposite directions of the two support leg main bodies.

[0007] In the above-mentioned support leg device for engineering vehicle, the inner side wall of the support leg main body is fixed with a third bearing, and the inner ring of the third bearing is fixed with the outer surface of the threaded rod.

[0008] In the above-mentioned support leg device for engineering vehicle, the two ends of the transmission rod are fixed with driven gears, and the transmission gear and the driven gear are respectively engaged with the gear disc.

[0009] In the above-mentioned support leg device for engineering vehicle, the top of the telescopic leg is provided with a threaded hole matched with the threaded rod.

[0010] The bottom of the telescopic leg is connected with a clamping piece, the clamping piece comprises a stabilizing plate and a threaded plug-in rod, the stabilizing plate is fixedly connected with the bottom of the telescopic leg, and a sliding groove for sliding of the threaded plug-in rod is formed in the stabilizing plate.

[0011] In the outrigger device for engineering vehicle, the inner top wall of the support leg body is fixed with a second bearing, and the top of the threaded rod is fixed in the inner ring of the second bearing.

[0012] In the outrigger device for engineering vehicle, the side walls of the two support leg bodies are hingedly connected with a support connecting frame through a pin shaft, and the support connecting frame is arranged between the support leg body and the engineering vehicle body.

[0013] Compared with the prior art, the outrigger device for engineering vehicle has at least the following beneficial effects:

[0014] Through the synchronous adjustment of the two telescopic legs, the operation process is simplified, the adjustment efficiency is improved, and the operation time is greatly saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the overall state of the outrigger device for engineering vehicle of the utility model;

[0016] Figure 2 is a sectional view of the support leg body of the outrigger device for engineering vehicle of the utility model;

[0017] Figure 3 is the outrigger device for engineering vehicle of the utility model Figure 2 A region enlargement map;

[0018] Figure 4 is the front view of the stabilizing plate of the outrigger device for engineering vehicle of the utility model.

[0019] In the figure: 1, support leg body; 2, telescopic leg; 3, support connecting frame; 4, self-locking rocker; 401, transmission rod; 402, connecting sleeve; 403, threaded rod; 404, first bearing; 405, transmission gear; 406, second bearing; 407, third bearing; 408, gear disc; 5, stabilizing plate, 501, threaded plug-in rod; 502, sliding groove. DETAILED DESCRIPTION

[0020] The engineering vehicle support leg device is described in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] In the description of the utility model, it needs to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] The engineering vehicle support leg device of the embodiment comprises a self-locking rocker and a series of bearings, transmission rods and gear plates, can accurately adjust the length of the telescopic legs, has a self-locking function, and ensures the stability after adjustment. The transmission rod is engaged with the gear plate through the driven gear, realizes synchronous adjustment of the two side support leg bodies, simplifies the operation process, saves operation time, and refers to Figures 1-4 A kind of engineering vehicle support leg device, including two support leg bodies 1 and support connecting frame 3, support connecting frame 3 is arranged between support leg body and engineering vehicle body, the bottom of support leg body 1 is connected with telescopic leg 2 in telescopic connection, the bottom of telescopic leg 2 is connected with clamping piece.

[0023] Support leg body 1 is provided with adjusting mechanism, and the adjusting mechanism includes self-locking rocker 4, first bearing 404, second bearing 406, third bearing 407, threaded rod 403, transmission rod 401, the two sides of each support leg body 1 are fixed with first bearing 404, the inner ring of two first bearings 404 is sleeved with connecting sleeve 402, one end of each connecting sleeve 402 is fixed with transmission gear 405, and self-locking rocker 4 is detachably connected with the other end of connecting sleeve 402. The design of self-locking rocker 4 makes the rocker itself have self-locking function. After being adjusted to the appropriate position, even if the self-locking rocker is loosened, the adjusting mechanism can be kept at the current position, and the situation of slipping or loosening does not occur. Using self-locking rocker prevents the rocker from being moved by mistake when not in use, which improves the safety of the support leg device.

[0024] The inner top wall of the support leg body 1 is fixed with a second bearing 406, a threaded rod 403 is vertically rotatably arranged in the support leg body 1, the top of the threaded rod 403 is fixed to the inner ring of the second bearing 406, the outer surface of the threaded rod 403 is wrapped with a gear disc 408, the inner side wall of the support leg body 1 is fixed with a third bearing 407, the inner ring of the third bearing 407 is fixed to the outer surface of the threaded rod 403, the top of the telescopic leg 2 is provided with a threaded hole matched with the threaded rod 403, and the structure is used, so that the rotation of the threaded rod 403 drives the telescopic leg 2 to rise or fall, the support leg body 1 limits the position of the telescopic leg 2, and the rotation of the threaded rod 403 is prevented from driving the telescopic leg 2 to rotate.

[0025] Both ends of the transmission rod 401 penetrate into the first bearings 404 in the opposite directions of the two support leg bodies 1, both ends of the transmission rod 401 are fixed with driven gears, the transmission gear 405 and the driven gears are respectively meshed with the gear disc 408, and the support connecting frame 3 is hingedly connected to the side walls of the two support leg bodies 1 through a pin shaft. The use of bearings (including the first bearing 404, the second bearing 406 and the third bearing 407) ensures the stability and reliability of the adjusting mechanism during rotation. The bearings can reduce friction and wear, reduce energy loss, and ensure that the adjusting mechanism can still maintain high precision and stability after long-term use.

[0026] In the embodiment, the position of the threaded plug-in rod can be conveniently slid and adjusted through the sliding groove structure in the stable plate, so that the stability and adaptability of the support leg device are enhanced, and the support leg device can adapt to the needs of different terrains and working conditions, see Figure 1 and Figure 4 The clamping piece comprises a stable plate 5 and a threaded plug-in rod 501, the stable plate 5 is fixedly connected with the bottom of the telescopic leg 2, and a sliding groove 502 for sliding of the threaded plug-in rod 501 is formed in the stable plate 5.

[0027] The use method of the support leg device for engineering vehicles is as follows: firstly, the top of the support leg body 1 is fixed with an external vehicle, according to different vehicles and different use heights of the telescopic leg 2, one end of the support connecting frame is rotated and adjusted, so that the support connecting frame 3 is fixed with the external vehicle, the stability of the support connecting frame 3 is improved, when the telescopic leg 2 needs to be adjusted, the self-locking rocker 4 is inserted into the inside of one of the connecting sleeves 402, the self-locking rocker 4 drives the connecting sleeve 402 to rotate, the connecting sleeve 402 drives the transmission gear 405 to rotate. The transmission gear 405 drives the gear disc 408 to rotate, the gear disc 408 drives the threaded rod 403 to rotate, and the rotation of the threaded rod 403 drives the telescopic leg 2 to slide in and out of the support leg body 1.

[0028] The gear disc 408 rotates to drive the driven gear to rotate, the driven gear drives the transmission rod 401 and another driven gear to rotate, the driven gear drives the adjusting mechanism inside the other support leg body to rotate, the two telescopic legs 2 slide in and out of the support leg body 1 at the same time, after adjustment, the threaded plug-in rod 501 slides in the stabilizing plate 5, and is plugged into the corresponding outside after being adjusted to the appropriate position, thereby improving the stability.

[0029] Unless otherwise defined, technical terms or scientific terms used herein shall have the ordinary meanings as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "one" or "a" or "the" or similar referents in the specification and claims herein does not necessarily exclude multiple references, unless the context clearly requires it. The terms "comprising", "comprises" and "comprised of" as used herein are synonymous with "including", "includes" or "containing", "contains", and are inclusive or open-ended and do not exclude additional, unrecited elements or method steps. The terms "connected" or "coupled" as used herein are not necessarily limited to a direct connection or coupling, but also include an indirect connection or coupling, whether or not it is a mechanical or electrical connection or coupling.

[0030] The exemplary embodiments of the present application are described in detail above with reference to the preferred embodiments, however, it is understood by those skilled in the art that various modifications and changes can be made to the above-described specific embodiments, and various combinations of the technical features and structures proposed by the present application can be made without departing from the concept of the present application, and thus the scope of protection of the present application is not limited to the above-described specific embodiments.

Claims

1. A support leg device for an engineering vehicle comprising a support leg body (1), characterised in that: The bottom of the support leg body (1) is connected with a telescopic leg (2), and an adjusting mechanism is arranged on the support leg body (1); The adjusting mechanism comprises a self-locking rocker (4), a threaded rod (403) and a transmission rod (401), two first bearings (404) are fixed on the two sides of each support leg body (1), the inner rings of the two first bearings (404) are wrapped with a connecting sleeve (402), one end of each connecting sleeve (402) is fixed with a transmission gear (405), the threaded rod (403) is vertically rotatably arranged in the support leg body (1), the outer surface of the threaded rod (403) is sleeved with a gear disc (408), and the two ends of the transmission rod (401) penetrate into the first bearings (404) in the opposite directions of the two support leg bodies (1).

2. The engineered vehicle with a kickout device of claim 1, wherein: The inner side wall of the support leg body (1) is fixed with a third bearing (407), and the inner ring of the third bearing (407) is fixed with the outer surface of the threaded rod (403).

3. The engineered vehicle with a kickout device of claim 1, wherein: The two ends of the transmission rod (401) are fixed with driven gears, the transmission gear (405) and the driven gears are respectively engaged with the gear disc (408).

4. The engineered vehicle with a kickout device of claim 1, wherein: The top of the telescopic leg (2) is provided with a threaded hole matched with the threaded rod (403).

5. The engineered vehicle with a kickout device of claim 1, wherein: The bottom of the telescopic leg (2) is connected with a clamping piece, the clamping piece comprises a stabilizing plate (5) and a threaded plug-in rod (501), the stabilizing plate (5) is fixedly connected with the bottom of the telescopic leg (2), and the inside of the stabilizing plate (5) is provided with a sliding groove (502) for sliding of the threaded plug-in rod (501).

6. The engineered vehicle with a kickout device of claim 1, wherein: The inner top wall of the support leg body (1) is fixed with a second bearing (406), and the top of the threaded rod (403) is fixed in the inner ring of the second bearing (406).

7. The engineered vehicle with a kickout device of claim 1, wherein: The side walls of the two support leg bodies (1) are hingedly connected with a support connecting frame (3) through a pin shaft, and the support connecting frame (3) is arranged between the support leg body and the engineering vehicle body.

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