Electric supporting leg assembly for light motor home

Abstract

The utility model relates to the field of electric supporting legs of light motor homes, and provides an electric supporting leg assembly for a light motor home, which comprises a supporting leg base, a supporting leg, a supporting edge beam and an electric push rod, the top end of the supporting leg is connected to one end of the supporting leg base in a sliding mode. The top end of the supporting edge beam is hinged to the other end of the supporting leg base. The bottom ends of the supporting edge beams are hinged to the supporting legs. The electric push rod is mounted at the bottom of the supporting leg base; the supporting legs are connected with the electric push rod; supporting shoes are hinged to the bottoms of the supporting legs; by arranging the worm gear, the worm, the lead screw and the sliding block transmission structure, the problems that in the prior art, due to the fact that the supporting legs are dragged after touching the bottom, the bearing capacity of the supporting legs is insufficient, and the stability of the touring car is affected are solved, and the overturning risk of the touring car during camping is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of electric outriggers for light-duty recreational vehicles, in particular to an electric outrigger assembly for light-duty recreational vehicles. Background Art

[0002] RV outriggers are one of the essential spare parts for RVs. Their main function is to provide support for the RV during parking, thereby reducing the supporting force of the tires and improving the stability and comfort of the RV.

[0003] The mainstream outriggers on the market are still manual mechanical outriggers, which rely on manual cranks or additional electric wrenches to raise and lower the outriggers. This method is time-consuming and labor-intensive, greatly reducing travel satisfaction.

[0004] At present, some electric outriggers are on the market, but most of them are direct-push electric push rods. Direct-push electric push rods will cause the outriggers to drag after touching the ground, thereby affecting the outrigger load-bearing capacity and stability of the RV. Utility Model Content

[0005] The utility model proposes an electric outrigger assembly for a light RV. By arranging a turbine, a worm, a screw, and a slider transmission structure, the utility model solves the problems existing in the prior art such as insufficient bearing capacity of the support legs caused by the outriggers dragging after touching the bottom, affecting the stability of the RV, and greatly reduces the risk of overturning of the RV during camping.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] An electric outrigger assembly for a light RV, comprising an outrigger base, a support leg, a support side beam, and an electric push rod;

[0008] The top end of the support leg is slidably connected to one end of the support leg base;

[0009] The top end of the supporting side beam is hinged to the other end of the support leg base;

[0010] The bottom end of the supporting side beam is hinged to the supporting leg;

[0011] The electric push rod is installed at the bottom of the leg base;

[0012] The support leg is connected to the electric push rod;

[0013] The bottom of the support leg is hinged with a support shoe;

[0014] The electric push rod is connected to a controller via a control wire, and the controller is connected to a control switch;

[0015] The first hinge point between the support side beam and the support leg base is a first crank slider mechanism;

[0016] The second articulation point of the support leg and the support leg base is a second crank slider mechanism;

[0017] The third articulation point of the support edge beam and the support leg is a third crank slider mechanism;

[0018] The fourth articulation point of the support leg and the support shoe is a fourth crank slider mechanism;

[0019] The second articulation point is a power point;

[0020] The fourth articulation point is a support force output point.

[0021] Further, the electric push rod comprises a motor, a worm, a turbine, a lead screw and a sliding seat;

[0022] The worm is connected with the output shaft of the motor;

[0023] The lead screw is rotatably installed on the support leg base;

[0024] The turbine is sleeved on the lead screw;

[0025] The turbine is engaged with the worm;

[0026] The sliding seat is threadedly connected with the lead screw;

[0027] The sliding seat is simultaneously slidably connected with the support leg base;

[0028] The support leg is connected with the sliding seat.

[0029] Further, the support leg base is an integral stamping structure, and the integral structure has high strength and rigidity;

[0030] The support leg base can also be made by welding after being formed in parts;

[0031] The support edge beam and the support leg are both steel plate stamping products with concave-convex structures, which can increase the support rigidity, are light in weight and low in cost;

[0032] The support edge beam and the support leg can also be replaced by pipe forming products, but the product quality is relatively poor.

[0033] Further, the support leg base is symmetrically provided with sliding grooves;

[0034] The top end of the support leg is provided with a mounting shaft;

[0035] The two ends of the mounting shaft are slidably installed in the sliding grooves;

[0036] The mounting shaft is rotatably connected with the sliding seat.

[0037] Furthermore, two support side beams are provided, and the two support side beams are symmetrically installed on both sides of the support leg and both sides of the support leg base.

[0038] Furthermore, the four sides of the support shoe are tilted and tilted upward to increase its all-terrain adaptability.

[0039] The utility model solves the problems existing in the prior art such as insufficient bearing capacity of the supporting legs and influence on the stability of the RV caused by the supporting legs dragging after touching the bottom, by providing a turbine, worm, screw and slider transmission structure, thereby greatly reducing the risk of overturning of the RV during camping. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0041] Figure 1 This is a schematic diagram of a partial structure of an electric outrigger assembly for a light-duty RV in a specific embodiment of the present utility model;

[0042] Figure 2 for Figure 1 A left side view of the structure of an electric outrigger assembly for a light-duty RV is shown;

[0043] Figure 3 for Figure 1 、 Figure 2 A rear view of the overall structure of an electric outrigger assembly for a light-duty RV is shown;

[0044] Figure 4 for Figures 1-3 A partial structural schematic diagram of an electric push rod of an electric outrigger assembly for a light RV is shown;

[0045] Figure 5 Figures 1-4 A schematic structural diagram of another part of an electric outrigger assembly for a light-duty RV is shown;

[0046] Figure 6 for Figures 1-5 A schematic structural diagram of an electric outrigger assembly for a light RV in a folded state is shown;

[0047] Figure 7 for Figure 6 A structural schematic diagram of an electric outrigger assembly for a light RV in an extended state is shown;

[0048] Figure 8 For Figures 1-7 Fig. 1 is a perspective structural schematic view of an electric leg assembly for a light house car;

[0049] Mark explanation: leg base 1;Sliding groove 11;Electric push rod 2;Motor 21;Worm 22;Turbine 23;Lead screw 24;Slide 25;Support edge beam 3;Support shoe 4;Support leg 5;Mounting shaft 51;Control wire 7;Controller 8;Controller 8;Control switch 9;First hinge point A;Second hinge point B;Third hinge point C;Fourth hinge point D; DETAILED DESCRIPTION

[0050] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0051] In the specific embodiments of the present application, see Figures 1-8 An electric leg assembly for a light house car, comprising: a leg base 1, a support leg 5, a support edge beam 3 and an electric push rod 2;

[0052] The top end of the support leg 5 is slidingly connected to one end of the leg base 1, and the support leg 5 realizes its own extension and contraction by being slidingly connected to the leg base 1.

[0053] The top end of the support edge beam 3 is hingedly connected to the other end of the leg base 1, and the bottom end of the support edge beam 3 is hingedly connected to the support leg 5. The support edge beam 3 can be supported on the leg base 1 and the support leg 5 when the support leg 5 is extended, thereby providing support force together with the support leg 5.

[0054] The electric push rod 2 is detachably mounted on the bottom of the leg base 1 through an electric push rod seat.

[0055] The support leg 5 is connected to the electric push rod 2, and the electric push rod 2 drives the support leg 5 to realize its extension and contraction.

[0056] The bottom of the support leg 5 is hingedly connected with a support shoe 4, and the support shoe 4 can effectively improve the overall pressure-bearing capacity of the leg assembly and improve the stability.

[0057] The electric push rod 2 is connected with a controller 8 through a control wire 7, and the controller 8 is connected with a control switch 9.

[0058] The first articulation point A of the support edge beam 3 and the support leg base 1 is a first crank slider mechanism;

[0059] The second articulation point B of the support leg and the support leg base is a second crank slider mechanism;

[0060] The third articulation point C of the support edge beam and the support leg is a third crank slider mechanism;

[0061] The fourth articulation point D of the support leg and the support shoe is a fourth crank slider mechanism;

[0062] The second articulation point B is a power point;

[0063] The fourth articulation point D is a support force output point

[0064] In the specific embodiment of the utility model, see Figures 1-8 , the electric push rod 2 includes a motor 21, a worm 22, a turbine 23, a lead screw 24 and a sliding seat 25;

[0065] The worm 22 is connected with the output shaft of the motor 21;

[0066] The lead screw 24 is rotatably installed on the support leg base 1;

[0067] The turbine 23 is sleeved on the lead screw 24;

[0068] The turbine 23 is engaged with the worm 22;

[0069] The sliding seat 25 is threadedly connected with the lead screw 24;

[0070] The sliding seat 25 is simultaneously slidably connected on the support leg base 1;

[0071] The support leg 5 is connected with the sliding seat 25;

[0072] In the specific embodiment of the utility model, see Figures 1-8 , the motor 21 drives the worm 22 to rotate, the worm 22 drives the turbine 23 to rotate, the turbine 23 drives the lead screw 24 to rotate, the lead screw 24 drives the sliding seat 25 to move linearly, and the sliding seat 25 drives the top end of the support leg to move in the horizontal direction when moving, so that the bottom end of the support leg 5 moves up and down, thereby enabling the support leg assembly to provide support for the house car.

[0073] In the specific embodiment of the utility model, see Figures 1-8 , the support leg base 1 is an integral stamping structure, and the integral structure has high strength and rigidity;

[0074] The support leg base 1 can also be made by being divided into parts and then being welded;

[0075] The support edge beam 3 and the support leg 5 are both support edge beams with concave-convex structures stamped from steel plates, which can increase the support rigidity, are light in weight and low in cost.

[0076] The support edge beam 3 and the support leg 5 can also be replaced by pipe forming products, but the product quality is relatively poor.

[0077] In the specific embodiments of the utility model, see Figures 1-8 , specifically see Figure 4 、 Figure 5 The support leg base 1 is symmetrically provided with a sliding groove 11, which is a through-hole groove and provides conditions for the sliding of the top end of the support leg 5.

[0078] The top end of the support leg 5 is provided with a mounting shaft 51.

[0079] Both ends of the mounting shaft 51 are slidingly installed in the sliding groove 11.

[0080] The mounting shaft 51 is rotationally connected with the sliding seat 25, and the sliding seat 25 drives the movement of the mounting shaft 51 to drive the movement of the top end of the support leg 5.

[0081] Further, in the specific embodiments of the utility model, see Figures 1-8 The support edge beam 3 is provided with two, and the two support edge beams 3 are symmetrically installed on both sides of the support leg 5 and both sides of the support leg base 1.

[0082] Figures 1-8 In the specific embodiments of the utility model, see Figures 1-8 The support shoe 4 is tilted upward around the periphery, which increases the all-terrain adaptability.

[0083] The electric support leg assembly disclosed by the utility model is connected between components through a pin and a split pin, is convenient to assemble and has high flexibility; can also be connected through a bolt and a nut, or riveted through a rivet;

[0084] The periphery of the support shoe is designed as an upwardly-inclined vamp, and the stroke covers the whole process of folding and unfolding of the support leg, thereby meeting the thrust requirement.

[0085] The electric push rod is designed as a self-locking worm and screw transmission, the thrust and the stroke are specially designed and matched, the stroke covers the whole process of folding and unfolding of the support leg, the thrust meets the design requirement, the position of the support leg assembly after unfolding is maintained, and the stability of the support leg assembly during support is effectively improved.

[0086] The end of the electric push rod, i.e., the sliding seat and the support leg, are connected through two bearings, the support force of the support leg and the support leg base is transmitted through the bearings, and the rolling of the bearings can effectively reduce the friction resistance and improve the mechanical efficiency.

[0087] The controller and the control switch are single-chip controller, which are used for controlling the stroke, starting and stopping actions of the motor, and the lifting of the support legs can be started and stopped in the middle through the manual control switch mode; the controller is connected with the electric push rod through control wires, the length of the control wires is controlled by the user, and the control wires can be wired connection or wireless connection;

[0088] The first, second, third and fourth crank slider mechanisms formed at the first, second, third and fourth hinge points of the application have a sliding seat as a power source arranged at the second hinge point, and the action point is the fourth hinge point, which is a support force output point; the lengths of the four hinge points are matched through design calculation, so that the vertical stroke of the fourth hinge point meets the requirements of the motor home when the support legs are retracted and opened, and the horizontal stroke is limited within a certain range, and the dragging of the fourth hinge point is avoided; thus, the problems in the prior art are effectively solved, and the overturning risk of the motor home during camping is greatly reduced.

[0089] The above only describes the preferred embodiments of the application and is not intended to limit the application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An electrically driven support leg assembly for a light recreational vehicle, comprising: a support leg base, a support leg, a support beam and an electrically driven push rod; a top end of the support leg is slidably connected to one end of the support leg base; a top end of the support beam is hingedly connected to the other end of the support leg base; a bottom end of the support beam is hingedly connected to the support leg; the electrically driven push rod is installed at the bottom of the support leg base; the support leg is connected to the electrically driven push rod; a support shoe is hingedly connected to the bottom of the support leg; a first hinge point between the support beam and the support leg base is a first crank slider mechanism; a second hinge point between the support leg and the support leg base is a second crank slider mechanism; a third hinge point between the support beam and the support leg is a third crank slider mechanism; a fourth hinge point between the support leg and the support shoe is a fourth crank slider mechanism; the second hinge point is a power point; and the fourth hinge point is a support force output point.

2. The electrically driven push rod comprises a motor, a worm, a turbine, a screw rod and a sliding seat; the worm is connected to the output shaft of the electrically driven push rod; the screw rod is rotatably installed on the support leg base; the turbine is sleeved on the screw rod; the turbine is engaged with the worm; the sliding seat is threadedly connected to the screw rod; the sliding seat is slidably connected to the support leg base; and the support leg is connected to the sliding seat.

3. The support leg base is an integrated stamping structure; the support beam and the support leg are both steel plate stamping structures with concave-convex structures.

4. The support leg base is symmetrically provided with sliding grooves; the top end of the support leg is provided with an installation shaft; the installation shaft is slidably installed at both ends of the sliding grooves; and the installation shaft is rotatably connected to the sliding seat.

5. The support beam is provided with two, which are symmetrically installed on both sides of the support leg and both sides of the support leg base.

6. The support shoe is tilted upward around the periphery. ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. An electrically powered j ack assembly for a light weight recreational vehicle as set forth in claim 1, wherein: ​ ​ ​ ​ ​ ​ ​ ​ 3. An electrically powered j ack assembly for a light weight recreational vehicle as set forth in claim 1, wherein: ​ ​ 4. An electrically powered j ack assembly for a light weight recreational vehicle as set forth in claim 2, wherein: ​ ​ ​ ​ 5. An electrically powered j ack assembly for a light weight recreational vehicle as set forth in claim 1, wherein: ​ 6. An electrically powered j ack assembly for a light weight recreational vehicle as set forth in claim 1, wherein: ​

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