Hydraulic motor home self-balancing supporting module

Abstract

The utility model discloses a hydraulic motor home self-balancing support module, which relates to the technical field of motor home support and comprises a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body and an output shaft, and the cylinder body is connected with a frame; the cylinder body comprises a barrel body, a first mounting fin, a second mounting fin, a first clamping fin and a second clamping fin, and the first mounting fin, the first clamping fin and the longitudinal beam can be fixedly connected through opposite-penetrating bolts; the second mounting fins, the second clamping fins and the longitudinal beams can be fixedly connected through opposite-penetrating bolts; the two ends of the cylinder body are connected with the first oil pipe and the second oil pipe respectively, and the first oil pipe and the second oil pipe are clamped between the barrel and the longitudinal beam. The first oil nozzle is installed in the first transverse groove, the second oil nozzle is installed in the second transverse groove, and the first transverse groove and the second transverse groove are both formed in the side wall of the protruding part, so that hidden installation of the first oil nozzle and the second oil nozzle can be achieved, the safety of the first oil nozzle and the second oil nozzle is synchronously improved, and the exposure risk is avoided.

Description

Technical Field

[0001] This utility model relates to the field of RV support technology, specifically to a hydraulic RV self-balancing support module. Background Technology

[0002] A motorhome is a new type of vehicle that can be equipped with home furnishings such as beds and refrigerators, thus meeting the needs of drivers for long-term residence.

[0003] When in driving mode, the RV is supported by its wheels; when parked, the outriggers are usually lowered to improve parking stability and thus enhance user comfort. Hydraulic outriggers are commonly used as outriggers.

[0004] In traditional technology, the hydraulic hoses used to supply hydraulic oil are usually located on the outside of the hydraulic cylinder, meaning they are installed in an exposed form. Unlike cars that drive in urban areas, motorhomes typically travel in harsh outdoor environments (such as the Gobi Desert, forests, and wastelands), and exposed hoses pose significant safety hazards (such as damage from impacts with rocks or splinters from tree branches). Summary of the Invention

[0005] In order to overcome the problem of "exposed oil pipes posing a significant safety hazard" in the above-mentioned background technology, this utility model provides a hydraulic RV self-balancing support module.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is:

[0007] A hydraulic self-balancing support module for a motorhome includes a hydraulic cylinder. The hydraulic cylinder includes a cylinder body and an output shaft inserted into the cylinder body's cavity and capable of extending and retracting. The bottom end of the output shaft is connected to a crimping assembly. The cylinder body is connected to a vehicle frame. The cylinder body includes a cylindrical body, a first mounting fin, a second mounting fin, a first clamping fin, and a second clamping fin. The first mounting fin and the second mounting fin are respectively fixedly connected to the side walls of the cylindrical body. The vehicle frame includes a longitudinal beam. The first mounting fin and the first clamping fin are mutually fitted and detachably connected. The first mounting fin, the first clamping fin, and the longitudinal beam are fixedly connected by through bolts. The second mounting fin and the second clamping fin are mutually fitted and detachably connected. The second mounting fin, the second clamping fin, and the longitudinal beam are fixedly connected by through bolts. Both ends of the cylinder body are connected to a first oil pipe and a second oil pipe, which are clamped between the cylindrical body and the longitudinal beam.

[0008] As a further optimization of this utility model, the outer side wall of the cylinder near the longitudinal beam is provided with a first slot, the side wall of the first clamping fin is provided with a first insertion protrusion that can be adapted to be inserted into the first slot, the end of the first insertion protrusion is provided with a third slot, and the third slot can be engaged with the first slot to form a first receiving groove for accommodating the first oil pipe.

[0009] As a further optimization of this utility model, the outer side wall of the cylinder near the longitudinal beam is provided with a second slot, the side wall of the second clamping fin is provided with a second insertion protrusion that can be adapted to be inserted into the second slot, the end of the second insertion protrusion is provided with a fourth slot, and the fourth slot can be engaged with the second slot to form a second receiving groove for accommodating the second oil pipe.

[0010] As a further optimization of this utility model, the first slot has a U-shaped cross-section, the second slot has a U-shaped cross-section, the third slot has a semi-circular cross-section, and the fourth slot has a semi-circular cross-section.

[0011] As a further optimization of this utility model, the first clamping fin and the first insertion protrusion are arranged in an F-shape, and the second clamping fin and the second insertion protrusion are arranged in an F-shape.

[0012] As a further optimization of this utility model, the outer wall of the cylinder is provided with a protrusion, which is placed between the first slot and the second slot; the outer wall of the protrusion can fit against the longitudinal beam.

[0013] As a further optimization of this utility model, the lower part of the inner cavity of the cylinder is provided with a first cavity and the upper part is provided with a second cavity.

[0014] As a further optimization of this utility model, the bottom end of the outer wall of the protrusion is provided with a first transverse groove, the inner wall of the cylinder is provided with a first oil hole, one end of the first oil hole is connected to the first cavity, and the other end is inserted with a first oil nozzle, the first oil nozzle is connected to and communicates with the first oil pipe; the first oil pipe can be placed in the first transverse groove and the first receiving groove in an L-shape.

[0015] As a further optimization of this utility model, the top of the outer side wall of the protrusion is provided with a second transverse groove, and the inner side wall of the cylinder is provided with a second oil hole. One end of the second oil hole is connected to the second cavity, and the other end is connected to a second oil nozzle. The second oil nozzle is connected to and communicates with the second oil pipe. The second oil pipe can be placed in the second transverse groove and the second receiving groove in an L-shape.

[0016] As a further optimization of this utility model, a wiring hole is provided at the top edge of the longitudinal beam, and the first oil pipe and the second oil pipe are both inserted into the wiring hole; the first oil pipe and the second oil pipe are respectively connected to and communicate with the hydraulic station installed in the frame.

[0017] In summary, this utility model has at least one of the following advantages:

[0018] (1) The present invention has a simple structure and reliable function. The first oil pipe and the second oil pipe are set between the hydraulic cylinder and the frame. That is, the cylinder body and the longitudinal beam clamp and protect the first oil pipe and the second oil pipe from both sides, realizing the embedded installation of the oil pipe and avoiding the risk of exposure.

[0019] (2) The first slot and the third slot clamp and fix the first oil pipe from both sides respectively, and the second slot and the fourth slot clamp and fix the second oil pipe from both sides respectively, thereby limiting the first oil pipe and the second oil pipe and preventing the first oil pipe and the second oil pipe from coming out laterally between the hydraulic cylinder and the frame, thus having excellent structural stability; in addition, the first mounting fin, the first clamping fin and the longitudinal beam are fixedly connected by through bolts, and the second mounting fin, the second clamping fin and the longitudinal beam are fixedly connected by through bolts, that is, the installation of the first oil pipe and the second oil pipe can be completed simultaneously when installing the hydraulic cylinder, which is convenient, simple and reliable.

[0020] (3) The first mounting fin, the first clamping fin and the longitudinal beam are fixedly connected, and the second mounting fin, the second clamping fin and the longitudinal beam are fixedly connected. This allows the first clamping fin to provide support to the first insertion protrusion and the second clamping fin to provide support to the second insertion protrusion, thus preventing the first insertion protrusion and the second insertion protrusion from sliding down and thus preventing the first insertion protrusion from coming out of the first slot and the second insertion protrusion from coming out of the second slot.

[0021] (4) The first oil nozzle is installed in the first transverse groove and the second oil nozzle is installed in the second transverse groove. The first transverse groove and the second transverse groove are both located on the side wall of the protrusion (pressed with the longitudinal beam), which can realize the concealed installation of the first oil nozzle and the second oil nozzle, simultaneously improving the safety of the first oil nozzle and the second oil nozzle and avoiding the risk of exposure.

[0022] (5) The first transverse groove is connected to the first slot and the second transverse groove is connected to the second slot, so the first oil pipe can be placed in the first transverse groove and the first receiving slot in an L-shape and the second oil pipe can be placed in the second transverse groove and the second receiving slot in an L-shape, thereby improving the concealment rate (concealment performance) of the first oil pipe and the second oil pipe and reducing exposure.

[0023] (6) After the first oil pipe and the second oil pipe pass out from the first receiving groove and the second receiving groove respectively, they are both inserted into the wiring hole of the longitudinal beam and then laid in the frame, which has excellent concealment rate (concealment performance) and reduces the risk of exposure.

[0024] (7) The top surface of the cylinder body is fitted and fixedly connected to the bottom surface of the first crossbeam. When the vehicle is parked, the top surface of the cylinder body can also transmit the supporting force to the frame, thereby avoiding the problem of force concentration on the first mounting fin and the second mounting fin, and improving the structural stability of this utility model. Attached Figure Description

[0025] The present application will be further explained below with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a front view of the vertical section of a hydraulic cylinder structure.

[0028] Figure 3 This is a schematic diagram of the vertical section of the first ring structure;

[0029] Figure 4 This is a schematic diagram of the vertical section of the second ring structure;

[0030] Figure 5 A top-view cross-section of the hydraulic cylinder and longitudinal beam structure;

[0031] Figure 6 This is an exploded view of the cylinder block structure;

[0032] Figure 7 This is a top-view cross-section of the first and second clamping fin structures.

[0033] Figure 8 This is a right-angle view of the cylinder block structure.

[0034] Figure 9 This is a schematic diagram showing the location and structure of the wiring holes;

[0035] Figure 10 This is a schematic diagram showing the location and structure of the corrugated sleeve.

[0036] Explanation of reference numerals in the attached figures:

[0037] In the picture,

[0038] 1. Hydraulic cylinder; 11. Cylinder body; 1101. First cavity; 1102. Second cavity; 111. Cylinder body; 1111. First slot; 1112. Second slot; 112. First mounting fin; 113. Second mounting fin; 114. First clamping fin; 1141. First insertion protrusion; 11411. Third slot; 115. Second clamping fin; 1151. Second clamping fin; 11511. Fourth slot; 12. Output shaft; 121. Corrugated sleeve; 13. First collar; 131. First sealing ring; 132. Second sealing ring; 14. Second collar; 141. Third sealing ring; 142. Fourth sealing ring; 15. Protrusion; 151. First transverse groove; 1511. First oil nozzle; 152. Second transverse groove; 1521. Second oil nozzle; 16. End cap;

[0039] 2. Crimping assembly;

[0040] 3. Chassis; 31. First crossbeam; 32. Second crossbeam; 33. Longitudinal beam; 331. Through bolt; 332. Cable routing hole;

[0041] 4. First oil pipe;

[0042] 5. Second oil pipe. Detailed Implementation

[0043] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows:

[0044] Reference Figures 1-2 This embodiment provides a hydraulic RV self-balancing support module, including a hydraulic cylinder 1. The hydraulic cylinder 1 includes a cylinder body 11 and an output shaft 12 inserted into the inner cavity of the cylinder body 11 and capable of extending and retracting. The bottom end of the output shaft 12 is vertically fixedly connected to the crimping assembly 2 (e.g., fixedly connected by bolts). The cylinder body 11 is connected to the vehicle frame 3 (e.g., fixedly connected by bolts).

[0045] Reference Figures 1-2The frame 3 includes a first crossbeam 31, a second crossbeam 32, and longitudinal beams 33. Both the first and second crossbeams 31 and 32 are transversely arranged, with the first crossbeam 31 positioned above the second crossbeam 32. The longitudinal beams 33 are longitudinally arranged, with their top ends fixedly connected to the first crossbeam 31 in a T-shape (e.g., by bolts) and their bottom ends fixedly connected to the second crossbeam 32 in an L-shape (e.g., by bolts). Multiple (at least four) first crossbeams 31 are provided, forming a closed loop. Multiple (at least four) second crossbeams 32 are also provided, forming a closed loop. Adjacent first crossbeams 31 and adjacent second crossbeams 32 are fixedly connected by bolts or welding. Multiple (at least four) longitudinal beams 33 are provided, and the first and second crossbeams 31 and 32 are fixedly connected by these longitudinal beams, thus forming a stable frame structure.

[0046] Reference Figures 1-2 The cylinder body 11 is provided with a first ring 13 and a second ring 14.

[0047] Reference Figure 2 and Figure 3 The first sleeve ring 13 is fitted onto the top of the outer wall of the output shaft 12. The inner wall of the first sleeve ring 13 is sealed and fixedly connected to the outer wall of the output shaft 12 (for example, by bolts). A first sealing ring 131 is provided between the first sleeve ring 13 and the output shaft 12. The inner and outer sides of the first sealing ring 131 are pressed against the output shaft 12 and the first sleeve ring 13 to achieve a sealed connection. The outer wall of the first sleeve ring 13 is sealed and slidably connected to the inner wall of the cylinder body 11. (A second sealing ring 132 is fixedly installed on the outer wall of the first sleeve ring 13 by adhesive or ring snap. The second sealing ring 132 is pressed against and slidably connected to the inner wall of the cylinder body 11 to achieve a sealed and slidable connection.) The first sleeve ring 13 and the output shaft 12 can reciprocate along the axial direction of the inner cavity of the cylinder body 11, thereby realizing the extension and retraction of the output shaft 12.

[0048] Reference Figure 2 and Figure 4 The second sleeve ring 14 is placed at the bottom of the inner cavity of the cylinder body 11. The inner wall of the second sleeve ring 14 is sealed and slidably connected to the outer wall of the output shaft 12 (a third sealing ring 141 is fixedly installed on the inner wall of the second sleeve ring 14 by adhesive or ring snap, and the third sealing ring 141 is sleeved on the outer wall of the output shaft 12 and pressed against each other and slidably connected, thereby achieving a sealed and slidably connected relationship between the second sleeve ring 14 and the output shaft 12). The outer wall of the second sleeve ring 14 is sealed and fixedly connected to the inner wall of the cylinder body 11 (the second sleeve ring 14 and the cylinder body 11 are fixedly connected by bolts; a fourth sealing ring 142 is provided between the second sleeve ring 14 and the cylinder body 11, and the fourth sealing ring 142 is fixedly installed on the outer wall of the second sleeve ring 14 by adhesive or ring snap, and the inner and outer sides of the fourth sealing ring 142 are respectively pressed against the second sleeve ring 14 and the side wall of the cylinder body 11, thereby achieving a seal).

[0049] Reference Figure 2 and Figure 5 The cylinder body 11 includes a cylindrical body 111, a first mounting fin 112, a second mounting fin 113, a first clamping fin 114, and a second clamping fin 1151. The first mounting fin 112 and the second mounting fin 113 are respectively fixedly connected to the two side walls of the cylindrical body 111 (e.g., by an integral fixed connection or by bolts). The cylindrical body 111, the first mounting fin 112, and the second mounting fin 113 are arranged in a horizontal T-shape. The first mounting fin 112 and the second mounting fin 113 are respectively used for fixed connection with the longitudinal beam 33, thereby fixing the cylinder body 11, so that when the output shaft 12 extends, it can push the pressing assembly 2 to press stably onto the road surface, thereby improving the parking stability of the RV.

[0050] Reference Figure 5 and Figure 6 The first mounting fin 112 and the first clamping fin 114 can be fitted together and detachably connected. The first clamping fin 114 can be fitted together and detachably connected to the side wall of the longitudinal beam 33. The first mounting fin 112, the first clamping fin 114 and the longitudinal beam 33 can be fixedly connected by through bolts 331. The second mounting fin 113 and the second clamping fin 1151 can be fitted together and detachably connected. The second clamping fin 1151 can be fitted together and detachably connected to the side wall of the longitudinal beam 33. The second mounting fin 113, the second clamping fin 1151 and the longitudinal beam 33 can be fixedly connected by through bolts 331.

[0051] Reference Figure 5 and Figure 6 The outer contour of the cylinder 111 is U-shaped. The first mounting fin 112 and the second mounting fin 113 are both plate-shaped. The first clamping fin 114 and the second clamping fin 1151 are both plate-shaped.

[0052] Reference Figure 2 and Figure 5 The cylinder body 11 is connected to the first oil pipe 4 and the second oil pipe 5 at both ends. The first oil pipe 4 and the second oil pipe 5 are clamped and set between the cylinder body 111 and the longitudinal beam 33, thereby realizing the concealment of the first oil pipe 4 and the second oil pipe 5 to avoid the first oil pipe 4 and the second oil pipe 5 from being damaged by external factors (such as impact damage from stones or damage from tree branches), thereby improving the safety of this utility model.

[0053] Reference Figure 2 The bottom end of the first oil pipe 4 is connected to the bottom end of the cylinder 11, and the second oil pipe 5 is connected to the top end of the side wall of the cylinder 11.

[0054] Reference Figure 5 , Figure 6 and Figure 7 The outer side wall of the cylinder 111 near the longitudinal beam 33 is provided with a first slot 1111, and the side wall of the first clamping fin 114 is provided with a first insertion protrusion 1141 that can be adapted to be inserted into the first slot 1111. The end of the first insertion protrusion 1141 is provided with a third slot 11411, and the third slot 11411 can be engaged with the first slot 1111 to form a first receiving groove for accommodating the first oil pipe 4.

[0055] Reference Figure 5 , Figure 6 and Figure 7 The outer side wall of the cylinder 111 near the longitudinal beam 33 is provided with a second slot 1112. The side wall of the second clamping fin 1151 is provided with a second insertion protrusion that can be adapted to be inserted into the second slot 1112. The end of the second insertion protrusion is provided with a fourth slot 11511. The fourth slot 11511 can be engaged with the second slot 1112 to form a second receiving groove for accommodating the second oil pipe 5.

[0056] Reference Figure 7 The first clamping fin 114 and the first insertion protrusion 1141 are integrally fixedly connected; the second clamping fin 1151 and the second insertion protrusion are integrally fixedly connected.

[0057] Reference Figure 7 The first slot 1111 has a U-shaped cross-section, the second slot 1112 has a U-shaped cross-section, the third slot 11411 has a semi-circular cross-section, and the fourth slot 11511 has a semi-circular cross-section. The third slot 11411 is fastened to the bottom of the first slot 1111 to form a first receiving slot with a circular cross-section. The fourth slot 11511 is fastened to the bottom of the second slot 1112 to form a second receiving slot with a circular cross-section.

[0058] Reference Figure 7 The first clamping fin 114 and the first insertion protrusion 1141 are arranged in an F-shape, and the second clamping fin 1151 and the second insertion protrusion are arranged in an F-shape, thereby achieving stable engagement of the first oil pipe 4 and the second oil pipe 5. (Refer to...) Figure 5 and Figure 7 Since the first mounting fin 112, the first clamping fin 114 and the longitudinal beam 33 are fixedly connected, and the second mounting fin 113, the second clamping fin 1151 and the longitudinal beam 33 are fixedly connected, the first clamping fin 114 can provide support to the first insertion protrusion 1141 and the second clamping fin 1151 can provide support to the second insertion protrusion, thus preventing the first insertion protrusion 1141 and the second insertion protrusion from sliding down, thereby preventing the first insertion protrusion 1141 from coming out of the first slot 1111 and preventing the second insertion protrusion from coming out of the second slot 1112.

[0059] Reference Figure 5 and Figure 7The outer wall of the cylinder 111 is provided with a protrusion 15, which is positioned between the first slot 1111 and the second slot 1112; the outer wall of the protrusion 15 can fit against the longitudinal beam 33. The cylinder 111 is fixedly connected to the protrusion 15 (e.g., by an integral fixed connection).

[0060] Reference Figure 2 As shown in Figure 7, the inner cavity of cylinder 11 is the same as the inner cavity of barrel 111. The lower part of the inner cavity of barrel 111 has a first cavity 1101, and the upper part has a second cavity 1102. Injecting hydraulic oil into the first cavity 1101 through the first oil pipe 4, and simultaneously extracting hydraulic oil from the second cavity 1102 through the second oil pipe 5, drives the first collar 13 to move upward, thereby retracting the output shaft 12. Extracting hydraulic oil from the first cavity 1101 through the first oil pipe 4, and simultaneously injecting hydraulic oil into the second cavity 1102 through the second oil pipe 5, drives the first collar 13 to move downward, thereby extending the output shaft 12.

[0061] Reference Figure 5 and Figure 8 The bottom of the outer side wall of the protrusion 15 is provided with a first transverse groove 151. The first transverse support is connected to the first slot 1111. The side wall of the cylinder 111 is provided with a first oil hole. One end of the first oil hole is connected to the bottom of the first cavity 1101, and the other end is connected to a first oil nozzle 1511. The first oil nozzle 1511 is connected to and communicates with the first oil pipe 4. The first oil pipe 4 can be placed in the first transverse groove 151 and the first receiving groove in an L-shape, thereby improving the concealment rate of the first oil pipe 4.

[0062] Reference Figure 5 and Figure 8 The top of the outer wall of the protrusion 15 is provided with a second transverse groove 152, which is connected to the second slot 1112. The side wall of the cylinder 111 is provided with a second oil hole. One end of the second oil hole is connected to the top of the second cavity 1102, and the other end is inserted with a second oil nozzle 1521. The second oil nozzle 1521 is connected to and communicates with the second oil pipe 5. The second oil pipe 5 can be placed in the second transverse groove 152 and the second receiving groove in an L-shape, thereby improving the concealment rate of the second oil pipe 5.

[0063] The first oil nozzle 1511 is sealed and fixedly connected to the first oil hole (e.g., by threaded connection and sealing by clamping a sealing ring), and the second oil nozzle 1521 is sealed and fixedly connected to the second oil hole (e.g., by threaded connection and sealing by clamping a sealing ring).

[0064] Reference Figure 9A wiring hole 332 is provided at the top edge of the longitudinal beam 33. The first oil pipe 4 and the second oil pipe 5 are both inserted into the wiring hole 332, thereby improving the concealment rate of the first oil pipe 4 and the second oil pipe 5. The first oil pipe 4 and the second oil pipe 5 are respectively connected to and communicate with the hydraulic station installed in the frame 3. The hydraulic station includes a housing, which is fixedly connected to the first crossbeam 31, the second crossbeam 32 and / or the longitudinal beam 33 (for example, by bolts). The housing contains a first oil pump, a second oil pump and an oil tank. The end of the first oil pipe 4 away from the cylinder 11 is connected to and communicates with the first oil pump, and the first oil pump is connected to and communicates with the oil tank through a third oil pipe; the end of the second oil pipe 5 away from the cylinder 11 is connected to and communicates with the second oil pump, and the second oil pump is connected to and communicates with the oil tank through a fourth oil pipe. The first oil pipe 4 is inserted into the frame 3, the second oil pipe 5 is inserted into the frame 3, and the third and fourth oil pipes are fixedly connected to the first crossbeam 31, the second crossbeam 32 and / or the longitudinal beam 33 by pipe clamps and bolts, respectively, so as to achieve stable installation.

[0065] Reference Figure 2 and Figure 10 The bottom end of the cylinder body 11 is provided with an end cover 16, which is fixedly connected to the side wall of the cylinder body 11 (for example, by bolts or by welding, so as to seal the second collar 14 and prevent the second collar 14 from coming out).

[0066] Reference Figure 2 , Figure 4 and Figure 10 A corrugated sleeve 121 is provided between the cylinder body 11 and the pressing assembly 2, i.e., between the end cover 16 and the pressing assembly 2. The corrugated sleeve 121 can extend and retract along its own axial direction, which is a conventional existing technology in the industry and will not be described in detail here. The part of the output shaft 12 extending from the cylinder body 11 is inserted into the corrugated sleeve 121, thereby achieving dust protection for the output shaft 12, reducing wear on the outer wall of the output shaft 12 and the inner wall of the third sealing ring 141, thus avoiding the problem of oil leakage from the hydraulic cylinder 1 and improving the service life of this utility model.

[0067] Reference Figure 2 The crimping assembly 2 is a straight plate, with the output shaft 12 vertically and fixedly connected to the center of the straight plate. A mounting sleeve (e.g., via an integrated fixing connection) is vertically and fixedly connected to the center of the top surface of the straight plate. The bottom end of the output shaft 12 is inserted into the mounting sleeve and fixedly connected (e.g., via bolts). The crimping assembly 2 is used to increase the contact area between the RV and the road surface, thereby improving parking stability and preventing the road surface from sinking due to concentrated stress.

[0068] Reference Figure 10 The top end of the corrugated sleeve 121 is fixedly connected to the end cap 16 (e.g., by adhesive bonding or by bolts), and the bottom end of the corrugated sleeve 121 is fixedly connected to the top surface of the straight plate (e.g., by adhesive bonding or by bolts).

[0069] Reference Figure 9 The top surface of the hydraulic cylinder 1, i.e. the top surface of the cylinder body 11, is adapted to fit and fixedly connected to the bottom surface of the first crossbeam 31 (e.g., fixedly connected by bolts). When parking (i.e., the output shaft 12 extends to the pressing assembly 2 and presses against the road surface), the top surface of the cylinder body 11 can also transmit the supporting force to the frame 3, thereby avoiding the problem of force concentration on the first mounting fin 112 and the second mounting fin 113 (both the first mounting fin 112 and the second mounting fin 113 transmit the supporting force to the frame 3 through the through bolt 331), and improving the structural stability and service life of this utility model.

[0070] This utility model also includes an electrical cabinet, which is fixedly installed inside the vehicle frame 3. The electrical cabinet is fixedly connected to the first crossbeam 31, the second crossbeam 32, and / or the longitudinal beam 33. The first oil pump and the second oil pump are respectively connected to the electrical cabinet via wires and signal lines. The electrical cabinet is also connected to the RV power supply and control terminal via wires and signal lines. The control terminal controls the start-stop and other working states of the first and second oil pumps in this utility model through the electrical cabinet, so as to realize the extension and retraction of the output shaft 12.

[0071] Each RV is equipped with at least four of these utility models to improve parking stability.

[0072] The first oil pipe 4, the second oil pipe 5, the third oil pipe and the fourth oil pipe are made of rubber hoses, thereby improving the ease of installation.

[0073] This utility model has a simple structure and reliable function. The first oil pipe 4 and the second oil pipe 5 are set between the hydraulic cylinder 1 and the frame 3. That is, the cylinder body 11 and the longitudinal beam 33 clamp and protect the first oil pipe 4 and the second oil pipe 5 from both sides, realizing the embedded installation of the oil pipes and avoiding the risk of exposure.

[0074] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0075] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0076] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this utility model based on its guidance, without departing from its principles and spirit, shall still fall within the protection scope of this utility model.

Claims

1. A hydraulic motor home self-balancing support module, characterized in that: Includes a hydraulic cylinder (1), the hydraulic cylinder (1) includes a cylinder body (11) and an output shaft (12) inserted into the inner cavity of the cylinder body (11) and capable of extending and retracting, the bottom end of the output shaft (12) is connected to a crimping assembly (2), and the cylinder body (11) is connected to a vehicle frame (3); The cylinder (11) includes a cylindrical body (111), a first mounting fin (112), a second mounting fin (113), a first clamping fin (114), and a second clamping fin (1151). The first mounting fin (112) and the second mounting fin (113) are respectively fixedly connected to the two side walls of the cylindrical body (111). The frame (3) includes longitudinal beams (33); The first mounting fin (112) and the first clamping fin (114) can fit together and be detachably connected. The first mounting fin (112), the first clamping fin (114) and the longitudinal beam (33) can be fixedly connected by through bolts (331). The second mounting fin (113) and the second clamping fin (1151) can fit together and be detachably connected. The second mounting fin (113), the second clamping fin (1151) and the longitudinal beam (33) can be fixedly connected by through bolts (331). The cylinder body (11) is connected to the first oil pipe (4) and the second oil pipe (5) at both ends, and the first oil pipe (4) and the second oil pipe (5) are clamped between the cylinder body (111) and the longitudinal beam (33).

2. The hydraulic RV self-leveling support module of claim 1, wherein: The outer side wall of the cylinder (111) near the longitudinal beam (33) is provided with a first slot (1111), and the side wall of the first clamping fin (114) is provided with a first insertion protrusion (1141) that can be adapted to be inserted into the first slot (1111). The end of the first insertion protrusion (1141) is provided with a third slot (11411), and the third slot (11411) can be engaged with the first slot (1111) to form a first receiving groove for accommodating the first oil pipe (4).

3. The hydraulic RV self-leveling support module of claim 2, wherein: The outer wall of the cylinder (111) near the longitudinal beam (33) is provided with a second slot (1112). The side wall of the second clamping fin (1151) is provided with a second insertion protrusion that can be adapted to be inserted into the second slot (1112). The end of the second insertion protrusion is provided with a fourth slot (11511). The fourth slot (11511) can be engaged with the second slot (1112) to form a second receiving groove for accommodating the second oil pipe (5).

4. The hydraulic RV self-leveling support module of claim 3, wherein: The first slot (1111) has a U-shaped cross section, the second slot (1112) has a U-shaped cross section, the third slot (11411) has a semi-circular cross section, and the fourth slot (11511) has a semi-circular cross section.

5. The hydraulic RV self-leveling support module of claim 4, wherein: The first clamping fin (114) and the first insertion protrusion (1141) are arranged in an F-shape, and the second clamping fin (1151) and the second insertion protrusion are arranged in an F-shape.

6. The hydraulic RV self-leveling support module of claim 5, wherein: The outer wall of the cylinder (111) is provided with a protrusion (15), which is located between the first slot (1111) and the second slot (1112); the outer wall of the protrusion (15) can fit against the longitudinal beam (33).

7. The hydraulic RV self-leveling support module of claim 6, wherein: The lower part of the inner cavity of the cylinder (111) is provided with a first cavity (1101) and the upper part is provided with a second cavity (1102).

8. The hydraulic RV self-balancing support module according to claim 7, characterized in that: The bottom of the outer wall of the protrusion (15) is provided with a first transverse groove (151), and the inner wall of the cylinder (111) is provided with a first oil hole. One end of the first oil hole is connected to the first cavity (1101), and the other end is connected to a first oil nozzle (1511). The first oil nozzle (1511) is connected to and communicates with the first oil pipe (4). The first oil pipe (4) can be placed in the first transverse groove (151) and the first receiving groove in an L-shape.

9. The hydraulic RV self-leveling support module of claim 8, wherein: The top of the outer wall of the protrusion (15) is provided with a second transverse groove (152), and the inner wall of the cylinder (111) is provided with a second oil hole. One end of the second oil hole is connected to the second cavity (1102), and the other end is connected to a second oil nozzle (1521). The second oil nozzle (1521) is connected to and communicates with the second oil pipe (5). The second oil pipe (5) can be placed in the second transverse groove (152) and the second receiving groove in an L-shape.

10. The hydraulic RV self-leveling support module of claim 9, wherein: The top edge of the longitudinal beam (33) is provided with a wiring hole (332), and the first oil pipe (4) and the second oil pipe (5) are both inserted into the wiring hole (332); the first oil pipe (4) and the second oil pipe (5) are respectively connected to and communicate with the hydraulic station installed in the frame (3).

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