Stabilizer for motor home

Abstract

The embodiment of the utility model discloses a stabilizer for a motor home. The stabilizer comprises a first supporting structure, a second supporting structure and a locking mechanism. The first supporting structure comprises an outer pipe; the second supporting structure comprises a sleeve, a side supporting rod and a connecting rod. The sleeve can selectively move in the first direction of the first end of the outer pipe or the second direction of the second end of the outer pipe. The locking mechanism comprises a first limiting piece and a second limiting piece, and the second limiting piece selectively abuts against the first limiting piece so as to lock the freedom degree of the sleeve in the first direction.

Description

Technical Field

[0001] This application relates to a stabilizer for a motorhome. Background Technology

[0002] A stabilizer is a support structure with good load-bearing capacity and stability. Furthermore, many stabilizers also have height adjustment capabilities to adapt to different heights. In existing technology, one solution is to adjust the stabilizer's height by changing the length of the side struts, for example, by using a multi-section structure for the side struts. The drawback of this solution is that, generally, there are at least three side struts, and each side strut needs to be adjusted when height needs to be adjusted, which is cumbersome. Summary of the Invention

[0003] This application provides a stabilizer for a motorhome to solve at least one technical problem in the prior art.

[0004] A stabilizer for a motorhome includes a first support structure, a second support structure, and a locking mechanism;

[0005] The first support structure includes an outer tube;

[0006] The second support structure includes,

[0007] A sleeve, which is slidably fitted onto the outside of the outer tube;

[0008] At least three side support rods, the first end of each of the at least three side support rods being hinged to the outer wall of the sleeve; and

[0009] At least three connecting rods, one end of which is hinged to the second end of the outer tube, and the other end of which is hinged to the side support rod;

[0010] The sleeve can be selectively moved toward a first end of the outer tube in a first direction or toward a second end of the outer tube in a second direction to adjust the height of the stabilizer;

[0011] The locking mechanism includes...

[0012] A first limiting member is fixedly disposed on the outer wall of the outer tube along the length direction of the outer tube;

[0013] The housing, which is fixedly connected to the outer wall of the sleeve; and

[0014] The second limiting member is restricted on the housing and is movably connected to the housing;

[0015] The second limiting member can optionally abut against the first limiting member to lock the sleeve's degree of freedom in the first direction.

[0016] In some implementations, the first limiting member is a strip-shaped structure with a plurality of limiting points distributed along the length of the first limiting member;

[0017] The sleeve has an opening in its wall, which is opened along the length of the outer tube. The first limiting member can extend into the opening and move along its length.

[0018] The second limiting member may optionally abut against the limiting point.

[0019] In some embodiments, the limiting point includes a tooth having a front side facing the second direction and a back side facing the first direction;

[0020] The housing is provided with a toggle plate, which is rotatably connected to the housing via a rotating shaft. The toggle plate includes a first locking tongue, which faces the opening of the sleeve.

[0021] The drive plate rotates, allowing the first locking tongue to selectively approach the first limiting member and abut against the front side of the protruding tooth.

[0022] In some implementations, the back side is an inclined surface, which can guide and drive the actuating plate to rotate when the sleeve moves on the outer tube in the second direction.

[0023] In some embodiments, the actuating plate is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the housing, one end of the rotating shaft is provided with a handle and connected to a first end of the handle, and a second end of the handle extends around the sleeve to the other side of the sleeve.

[0024] In some embodiments, a first locking pin may be selectively inserted into the housing, the first locking pin being used to restrict the rotation of the toggle plate in the unlocking direction to maintain the abutment state between the first locking tongue and the protruding teeth.

[0025] In some embodiments, the limiting point includes a tooth having a front side facing the second direction and a back side facing the first direction;

[0026] The housing located on both sides of the first limiting member is provided with a strip hole, the first end of the strip hole facing the sleeve side, and the second end of the strip hole extending along the side opposite to the sleeve.

[0027] The second limiting member includes a second locking pin, which can move along the length direction of the slot. When the second locking pin is located at the first end of the slot, the front side of the protruding tooth can abut against the second locking pin to lock the sleeve's degree of freedom in the first direction.

[0028] In some embodiments, the second end of the slot is provided with a notch opening in the second direction, the notch being able to accommodate at least a portion of the second locking pin.

[0029] In some embodiments, the angle between the length direction of the slot and the length direction of the outer tube in the first direction is an acute angle.

[0030] In some embodiments, the front side of the protruding tooth is provided with an inwardly recessed limiting groove, which can accommodate at least a portion of the second locking pin.

[0031] In some embodiments, a first pin hole is provided on the first sidewall of the housing;

[0032] The second limiting member includes a third locking pin, which can selectively pass through the first pin hole and abut against the limiting point to lock the sleeve's degree of freedom in the first direction.

[0033] In some implementations, the limiting point includes a limiting hole.

[0034] In some embodiments, the limiting point includes a tooth having a front side facing the second direction and a back side facing the first direction.

[0035] In some embodiments, the housing includes a first housing and a second housing, the first housing being fixedly connected to the outer wall of the sleeve, and the first pin hole being disposed on the first housing; the second housing being fixedly connected to the outer wall of the first housing, and the second side wall of the second housing being provided with a second pin hole;

[0036] The third locking pin includes a locking tongue and a handle at both ends. The third locking pin is movable along the channel formed by the first pin hole and the second pin hole. The locking tongue of the third locking pin can selectively pass through the first pin hole and abut against the front side of the protruding tooth.

[0037] In some embodiments, the third locking pin is provided with an outwardly protruding limiting ring, and a spring is sleeved on the outer side of the third locking pin. One end of the spring abuts against the limiting ring and the other end abuts against the second sidewall. The spring is configured to provide a spring force to the third locking pin toward the first pin hole.

[0038] In some embodiments, the first support structure further includes an inner tube, which is sleeved inside the outer tube and slidably connected to the inner wall of the outer tube; the inner tube can extend or retract from the outer tube in the first direction under the action of a drive.

[0039] In some embodiments, the actuator includes a threaded rod and a slider, the threaded rod being rotatably fixedly connected to the outer tube; the slider having a threaded hole, the slider being threadedly connected to the threaded rod, and the slider being fixedly connected to the inner tube; rotating the threaded rod can drive the inner tube to move along its length.

[0040] In some embodiments, the threaded rod is provided with a first gear; the driver further includes a drive shaft that passes through the outer tube and is rotatably connected to the outer tube; a second gear is sleeved on the drive shaft, and the first gear and the second gear are meshed together.

[0041] In some implementations, a limiting block is provided at one end of the threaded rod facing the first direction, and the limiting block is slidably connected to the inner wall of the inner tube.

[0042] In some implementations, a connector may be optionally installed at the end of the first support structure facing the first direction.

[0043] Compared with existing technologies, this application has several advantages. First, the side support rod of this application is a single-piece structure, unlike the multi-section structure used in existing technologies. When adjusting the height, this application only requires adjusting the position of the sleeve on the outer tube. Second, this embodiment achieves the height adjustment function of the stabilizer through two support structures, meeting a wider range of height requirements. Third, the embodiments of this application disclose various locking mechanisms, allowing for the selection of different implementation schemes based on actual conditions. Fourth, the various locking mechanisms provide a self-locking function, reducing the difficulty of operation. Fifth, different connectors can be selected for the top of the stabilizer to meet different docking requirements. Attached Figure Description

[0044] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein:

[0045] Figure 1 This is a top view of the stabilizer in an embodiment of this application;

[0046] Figure 2 for Figure 1 A cross-sectional view along the AA direction;

[0047] Figure 3 This is a three-dimensional structure and a partially enlarged schematic diagram of the stabilizer in the embodiments of this application;

[0048] Figure 4 This is a schematic diagram of the first locking mechanism in an embodiment of this application;

[0049] Figure 5 This is a schematic diagram of the first locking mechanism in the embodiments of this application. Figure 2 ;

[0050] Figures 6 to 8 for Figure 2 A magnified view of a portion of point B and a diagram showing its adjustment status;

[0051] Figure 9 This is a partial enlarged schematic diagram of the second locking mechanism in an embodiment of this application;

[0052] Figure 10 This is a cross-sectional view and a partially enlarged schematic diagram of the second locking mechanism in an embodiment of this application;

[0053] Figure 11 This is a schematic diagram of a second structure of the second locking mechanism in an embodiment of this application;

[0054] Figure 12 and Figure 13 This is a schematic diagram, a partially enlarged schematic diagram, and a cross-sectional view of the third structure of the second locking mechanism in the embodiments of this application;

[0055] Figure 14 This is a partial enlarged schematic diagram of the third locking mechanism in the embodiments of this application;

[0056] Figure 15 This is a cross-sectional view and a partially enlarged schematic diagram of the third locking mechanism in the embodiments of this application;

[0057] Figure 16 This is a partial exploded view of the third locking mechanism in the embodiments of this application;

[0058] Figure 17 This is an exploded view of the second support structure in the embodiments of this application;

[0059] Figure 18 for Figure 2 A magnified view of point C in the diagram;

[0060] Figure 19 for Figure 2 A magnified view of a portion of point D in the diagram;

[0061] Figure 20 This is a schematic diagram of the stabilizer in its retracted state and a schematic diagram of the replaceable connector in the embodiments of this application;

[0062] Figure 21 This is a schematic diagram of the stabilizer in its extended state in an embodiment of this application.

[0063] Explanation of reference numerals in the attached figures:

[0064] 10-First support structure; 101-Outer tube; 102-Inner tube; 1021-Slider; 1022-Threaded hole; 103-Lead screw; 1031-Limiting block; 1032-Fixing block; 1033-First gear; 1041-Drive shaft; 1042-Second gear;

[0065] 20-Second support structure; 201-Side support rod; 202-Sleeve; 203-Connecting rod; 204-Base;

[0066] 31-First locking mechanism; 3100-Rack; 3101-Housing; 3102-Protruding tooth; 3103-Actuating plate; 3104-Rotating shaft; 3105-Lock tongue; 3106-Handle; 3107-First locking pin; 3108-Opening; 3109-Front side; 3110-Back side; 3111-Groove; 3112-Limiting end; 3113-First pin hole; 32-Second locking mechanism; 3201-Housing; 3203-Strip hole; 3204- Second locking pin; 3205 - notch; 3206 - limiting groove; 3207 - second pin hole; 3208 - limiting plate; 3209 - limiting hole; 33 - third locking mechanism; 3301 - first housing; 3302 - third pin hole; 3303 - third locking pin; 3304 - locking tongue; 3305 - handle; 3306 - second housing; 3307 - channel; 3308 - cover; 3309 - limiting ring; 3310 - spring; 3311 - fourth pin hole;

[0067] 41-First connector; 42-Second connector. Detailed Implementation

[0068] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0069] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0070] The accompanying drawings illustrate one or more examples of this application. The detailed description uses numerical and alphabetic designations to refer to features in the drawings. Similar or analogous designations in the drawings and description have been used to refer to similar or analogous parts of this application. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0071] like Figures 1 to 3As shown, according to an embodiment of this application, a stabilizer for a motorhome is provided, comprising a first support structure 10 and a second support structure 20. The second support structure 20 includes at least three side support rods 201, and this embodiment provides four side support rods 201. The first support structure 10 includes an outer tube 101, with a sleeve 202 fitted onto the outer side of the outer tube 101. The sleeve 202 is reciprocating along the length of the outer tube 101. The four side support rods 201 surround the outer tube 101, with the first end of each of the four side support rods 201 hinged to the outer wall of the sleeve 202, and the second end of each of the four side support rods 201 supported on the ground or a support carrier. The second support structure 20 also includes connecting rods 203, with each side support rod 201 corresponding to at least one connecting rod 203. The first end of the connecting rod 203 is hinged to a rod body between the first and second ends of the side support rod 201, and the second end of the connecting rod 203 is hinged to the second end of the outer tube 101 or near the second end of the outer tube 101. When adjusting the height of the stabilizer, the first support structure 10 and the second support structure 20 are linked together. In some embodiments, the outer tube 101 has a first end in the opposite direction to its second end. When the sleeve 202 moves closer to the first end of the outer tube 101, the stabilizer gradually lowers, which is defined here as the sleeve 202 moving in the first direction, and this direction is defined as the first direction; conversely, when the sleeve 202 moves closer to the second end of the outer tube 101, the stabilizer gradually rises, which is defined here as the sleeve 202 moving in the second direction, and this direction is defined as the second direction. In some embodiments, the second end of the side support rod 201 is also provided with a foot 204 to improve the stability of the stabilizer during use.

[0072] In contrast, in the above embodiment, the height of the stabilizer is limited by the distance between the sleeve 202 and the second end of the outer tube 101. Of course, the outward opening angle of the side support rod 201 also affects the height of the stabilizer; however, this outward opening angle is also limited by the distance between the sleeve 202 and the second end of the outer tube 101. Therefore, after stabilizing its height setting, at least the degree of freedom of the sleeve 202 in the first direction must be locked to prevent the sleeve 202 from moving in the first direction, thereby ensuring that the stabilizer cannot decrease in height when locked.

[0073] To address the locking issue, the stabilizer incorporates a locking mechanism comprising a first limiting member and a second limiting member. The first limiting member is positioned along the length of the outer tube 101 on its outer wall. The second limiting member is confined to the outside of the sleeve 202 by a housing, which is fixedly connected to the outer wall of the sleeve 202. The second limiting member can move within the housing, allowing it to selectively abut against the first limiting member and lock the sleeve 202's degree of freedom in the first direction.

[0074] like Figures 3 to 7As shown, in some embodiments, this application discloses a first locking mechanism 31 including a rack 3100, which is fixedly disposed on the outer wall of the outer tube 101 along the length direction of the outer tube 101, and the teeth of the rack 3100 face away from the outer wall of the outer tube 101. The teeth of the rack 3100 include a plurality of protruding teeth 3102, each protruding tooth 3102 including a front side 3109 facing the second end of the outer tube 101 and a back side 3110 facing away from the second end of the outer tube 101, and a groove 3111 is provided between two protruding teeth 3102. The tube wall of the sleeve 202 is provided with an opening 3108, which is opened along the length of the outer tube 101, and the rack 3100 can extend into the opening 3108 and move along its length direction. A housing 3101 is fixedly disposed on the outer wall of the sleeve 202, and the housing 3101 is provided with a cavity, the opening 3108 of the sleeve 202 communicating with the cavity of the housing 3101. An actuating plate 3103 is provided within the cavity of the housing 3101, and the actuating plate 3103 is rotatably connected to the housing 3101 via a rotating shaft 3104. The actuating plate 3103 includes a locking tongue 3105 and a limiting end 3112, which are respectively located on both sides of the rotating shaft 3104, with the locking tongue 3105 facing the opening 3108 of the sleeve 202. When the actuating plate 3103 rotates, the locking tongue 3105 can selectively move closer to or further away from the opening 3108 of the sleeve 202; simultaneously, the limiting end 3112 will also move closer to or further away from the inner wall of the housing 3101.

[0075] When the locking tongue 3105 approaches the opening 3108 and abuts against the rack 3100, the first locking mechanism 31 enters the locking procedure, such as... Figure 6 As shown, if the locking tongue 3105 and the front side 3109 of the protruding tooth 3102 abut against each other and the limiting end 3112 abuts against the inner wall of the housing 3201, then the outer tube 101 and the sleeve 202 are locked together. Figure 8 As shown, if the locking tongue 3105 does not abut against the front side 3109 of the protruding tooth 3102, the outer tube 101 can be moved in the direction of arrow F in the figure to make the protruding tooth 3102 and the locking tongue 3105 form a... Figure 7 As shown in the diagram, the latch 3105 then moves further toward the opening 3108 until it forms a state as indicated. Figure 6 This concludes the process. Of course, in practice, it's not always necessary to follow the above steps to achieve the desired result. Figure 6 The state shown is the standard; or, if the locking tongue 3105 and the front side 3109 of the protruding tooth 3102 abut against each other, it can be considered that the locking is complete.

[0076] like Figure 6As shown, the function of the limiting end 3112 is to prevent the locking tongue 3105 from rotating under the force of the sleeve 202 moving in the first direction after the front side 3109 of the protrusion 3102 abuts against the locking tongue 3105. It can be understood that without the limiting end 3112, in some cases, the locking tongue 3105 would rotate around the pivot 3104 under the force, preventing the first locking mechanism 31 from completing its locking function. However, in some embodiments, as shown in the figure, with the pivot 3104 as the dividing point, if the locking tongue 3105 is positioned in the first direction of the pivot 3104, locking can be achieved when the locking tongue 3105 abuts against the front side 3109 of the protrusion 3102 and simultaneously against the bottom of the tooth groove 3111. In this embodiment, the limiting end 3112 may not be provided.

[0077] like Figure 7 As shown, if the first locking mechanism 31 is in the locked state, and the stabilizer needs to be unlocked, the lever plate 3103 is moved to separate the locking tongue 3105 from the front side 3109 of the serration 3102. At this time, as... Figure 8 As shown, the stabilizer's height can be adjusted to suit the desired usage height; or it can be completely folded up for easy storage. For example, Figure 8 As shown, when the stabilizer needs to be raised, the outer tube 101 moves in the first direction, and the sleeve 202 moves in the second direction. In this embodiment, the movement of the sleeve 202 in the second direction is not restricted; in some respects, this arrangement is more advantageous for height adjustment. To make the movement of the outer tube 101 in the first direction smoother, in some embodiments, the back side 3110 of the protrusion 3102 is an inclined surface. Figure 8 This can be seen as a schematic diagram of another situation, when the first locking mechanism 31 is in such a state. Figure 6 In the state shown, when the outer tube 101 is moved in the first direction, the actuating plate 3103 is passively rotated under the guidance of the toothed groove 3111 and the inclined surface, forming a shape as shown. Figure 8 The state shown is as depicted. Of course, the surface where the locking tongue 3105 abuts against the inclined surface can also be designed as an arc surface as shown in the figure, making the above operation smoother.

[0078] like Figures 4 to 6As shown, in some embodiments, the first locking mechanism 31 further includes a handle 3106, a toggle plate 3103 fixedly connected to a rotating shaft 3104, the rotating shaft 3104 rotatably connected to the housing 3101, one end of the rotating shaft 3104 connected to the first end of the handle 3106, and the second end of the handle 3106 extending around the sleeve 202 to the other side of the sleeve 202. The handle 3106 facilitates the movement of the toggle plate 3103. Additionally, the handle 3106 provides the toggle plate 3103 with a rotational force that moves the locking tongue 3105 toward the opening 3108, thus enabling the first locking mechanism 31 to have a self-locking function. Increasing the weight of the second end of the handle 3106 can further improve the self-locking performance.

[0079] like Figure 3 and Figure 6 As shown, in some embodiments, when the first locking mechanism 31 is in the locked state, in order to maintain the current locked state and prevent accidental operation that could cause the actuating plate 3103 to rotate, thereby releasing the locking state of the first locking mechanism 31 and causing an accident, the first locking mechanism 31 is equipped with a first locking pin 3107, which can be selectively inserted into the housing 3101. As shown in the figure, in this embodiment, both the first locking pin 3107 and the locking tongue 3105 are located on the first direction side of the rotating shaft 3104, but the first locking pin 3107 and the locking tongue 3105 are located in opposite directions of the actuating plate 3103. The housing 3101 is provided with a first pin hole 3113 into which the first locking pin 3107 can be inserted. The rotation of the actuating plate 3103 in the unlocking direction is restricted by the first locking pin 3107, thereby maintaining the locked state of the first locking mechanism 31.

[0080] like Figure 9 and Figure 10 As shown, this application discloses a second locking mechanism 32, which includes the aforementioned rack 3100, outer tube 101, and sleeve 202, and their connection relationship. A housing 3201 is fixedly disposed on the outer wall of the sleeve 202. The housing 3201 has a cavity, and the opening 3108 of the sleeve 202 communicates with the cavity of the housing 3201. Holes 3203 are provided on the housing 3201 located on both sides of the rack 3100. The first end of the hole 3203 faces the sleeve 202, and the second end of the hole 3203 extends along the side opposite to the sleeve 202. The second locking mechanism 32 also includes a second locking pin 3204, which is movable within the hole 3203 along its length. When the second locking pin 3204 is located at the first end of the slot 3203, the front side 3109 of the protrusion 3102 can abut against the first direction side of the second locking pin 3204 to lock the freedom of the sleeve 202 in the first direction. The length of the slot 3203 needs to ensure that when the second locking pin 3204 is located at the second end of the slot 3203, the rack 3100 will not contact the second locking pin 3204 during the height adjustment process of the stabilizer.

[0081] like Figure 10 As shown, in some embodiments, the second end of the slot 3203 has a notch 3205 extending in a second direction, which can accommodate at least a portion of the second locking pin 3204. After the second locking pin 3204 moves within the slot 3203 to the second end of the slot 3203, the second locking pin 3204 can be placed on the notch 3205. At this time, the second locking pin 3204 will not interfere with the height adjustment of the stabilizer. In other embodiments, the angle between the length direction of the slot 3203 and the length direction of the outer tube 101 in the first direction is an acute angle α, so that the slot 3203 has a slope. Generally, the second direction faces the ground. Therefore, after the second locking pin 3204 moves along the M direction in the figure, under the action of gravity, the second locking pin 3204 generates a component force, the direction of which is along the side wall of the slot 3203 toward the first end of the slot 3203. This force allows the second locking pin 3204 to actively approach the rack 3100, thus enabling the second locking mechanism 32 to have a self-locking function. Furthermore, in some embodiments, the front side 3109 of the protrusion 3102 is provided with an inwardly recessed limiting groove 3206, which can accommodate at least a portion of the second locking pin 3204. When the second locking pin 3204 abuts against the front side 3109 of the protrusion 3102, the limiting groove 3206 and the second locking pin 3204 engage with each other.

[0082] Secondly, the second locking mechanism 32 can also be simplified; please refer to [link / reference needed]. Figure 11 As shown, in some embodiments, the slot 3203 can be replaced by a second pin hole 3207. The second pin hole 3207 is located at the first end of the slot 3203, and the second pin hole 3207 is clearance-fitted with the second locking pin 3204. The second locking pin 3204 can be selectively inserted into the second pin hole 3207 to lock the degree of freedom of the sleeve 202 in the first direction. Furthermore, the diameter of the second pin hole 3207 is equal to or slightly larger than the outer diameter of the second locking pin 3204, and the range of movement of the second locking pin 3204 within the second pin hole 3207 is small. Therefore, the degree of freedom of the sleeve 202 in the second direction is also locked.

[0083] Additionally, in some embodiments, in Figure 11 Based on the implementation scheme shown, the rack 3100 in the second locking mechanism 32 can be replaced with, for example... Figure 12 and Figure 13 The limiting plate 3208 shown has a plurality of limiting holes 3209 distributed along the length of the limiting plate 3208. The second locking pin 3204 can be selectively inserted into the limiting holes 3209 to restrict the degrees of freedom of the sleeve 202 in the first and second directions.

[0084] like Figures 14 to 16As shown, this application discloses a third locking mechanism 33, which includes the aforementioned rack 3100, outer tube 101, and sleeve 202, as well as their connection relationships. The third locking mechanism 33 also includes a first housing 3301 and a second housing 3306. The first housing 3301 is fixedly mounted on the outer wall of the sleeve 202 and has a cavity. A third pin hole 3302 is provided on the side wall of the first housing 3301. The opening 3108 of the sleeve 202 communicates with the cavity and the third pin hole 3302 of the first housing 3301. The second housing 3306 has a channel 3307. The first end of the second housing 3306 is connected to the outer wall of the first housing 3301, and the third pin hole 3302 communicates with the channel 3307. A cover 3308 is provided at the second end of the second housing 3306, and a fourth pin hole 3311 is provided on the cover 3308. The third locking mechanism 33 also includes a third locking pin 3303, which includes a locking tongue 3304 and a handle 3305 located at its two ends. The third locking pin 3303 is inserted into the channel 3307 of the second housing 3306, with the locking tongue 3304 end of the third locking pin 3303 facing the third pin hole 3302, and the handle 3305 end of the third locking pin 3303 extending out from the fourth pin hole 3311 of the cover 3308. The locking tongue 3304 of the third locking pin 3303 can selectively extend into the third pin hole 3302 and abut against the front side 3109 of the protrusion 3102 to restrict the degree of freedom of the sleeve 202 in the first direction.

[0085] In some embodiments, the third locking pin 3303 is provided with an outwardly protruding limiting ring 3309, which is located on the side near the locking tongue 3304. A spring 3310 is sleeved on the outer side of the third locking pin 3303, with one end of the spring 3310 abutting against the limiting ring 3309 and the other end abutting against the inner wall of the cover 3308. The spring 3310 can provide a force to the third locking pin 3303 in the direction of the rack 3100, so that the third locking mechanism 33 has a self-locking function.

[0086] like Figure 2 , Figure 17 and Figure 19As shown, in some embodiments, the first support structure 10 further includes an inner tube 102, which is sleeved inside the outer tube 101 and slidably connected to it. The inner tube 102 can extend from or retract into the outer tube 101 from its first end under the action of a driver. In some embodiments, the driver includes a threaded rod 103 and a slider 1021, the slider 1021 having an internal thread, and the slider 1021 being threadedly connected to the threaded rod 103. The inner tube 102 has a first end facing a first direction and a second end facing a second direction, and the slider 1021 is disposed at the second end of the inner tube 102 and fixedly connected to the inner wall of the inner tube 102. The threaded rod 103 has a first end facing a first direction and a second end facing a second direction, and a fixing block 1032 is rotatably sleeved at the second end of the threaded rod 103, the fixing block 1032 being fixedly connected to the inner wall of the outer tube 101. Rotating the threaded rod 103 can drive the inner tube 102 to slide within the outer tube 101 along its length direction. In some embodiments, the second end of the threaded rod 103 is provided with a first gear 1033, and the second end of the outer tube 101 is provided with a drive shaft 1041, which passes through the outer tube 101 and is rotatably connected to it. A second gear 1042 is sleeved on the drive shaft 1041, and both the first gear 1033 and the second gear 1042 are bevel gears and are meshed together. In use, the drive shaft 1041 can be rotated to drive the threaded rod 103 to rotate, so that the inner tube 102 slides along the inner wall of the outer tube 101.

[0087] like Figure 2 and Figure 18 As shown, in some embodiments, a limiting block 1031 is provided at the first end of the threaded rod 103, and the limiting block 1031 is slidably connected to the inner wall of the inner tube 102. The limiting block 1031 can improve the stability of the first support structure 10 during extension and contraction, and is also used to limit the maximum length of the inner tube 102 extending outward.

[0088] like Figure 20 As shown, to improve the stabilizer's compatibility, in some embodiments, a connector may be optionally installed at the first end of the first support structure 10. The connector includes a first connector 41, which is a tubular structure with a top opening 3108. The connector also includes a second connector 42, whose top is a ball-shaped structure. Of course, connectors of other shapes or structures can also be designed. In use, the corresponding connector can be replaced as needed. Of course, in some cases, it can be used directly without a connector.

[0089] The above descriptions are merely examples of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A stabilizer for a recreational vehicle, comprising: a first support structure, a second support structure, and a locking mechanism; the first support structure comprising an outer tube; the second support structure comprising, a sleeve slidingly sleeved outside the outer tube; at least three side support rods, each having a first end hingedly connected to an outer wall of the sleeve; and at least three connecting rods, each having a first end hingedly connected to a second end of the outer tube and a second end hingedly connected to the side support rods; wherein the sleeve is selectively movable in a first direction towards a first end of the outer tube or in a second direction towards a second end of the outer tube to adjust a height of the stabilizer; and the locking mechanism comprising, a first limiting member fixedly arranged on the outer wall of the outer tube along a length direction of the outer tube; a housing fixedly connected to the outer wall of the sleeve; and a second limiting member movably connected to the housing; wherein the second limiting member is selectively abutted against the first limiting member to lock a degree of freedom of the sleeve in the first direction. 2.The stabilizer of claim 1, wherein the first limiting member is a strip structure having a plurality of limiting points distributed along a length direction of the first limiting member; the sleeve has an opening formed along the length direction of the outer tube, the first limiting member is extendable into the opening and movable along the length direction of the opening; and the second limiting member is selectively abutted against the limiting points. 3.The stabilizer of claim 2, wherein the limiting points comprise protruding teeth each having a front side facing the second direction and a back side facing the first direction; the housing has a dialing plate rotatably connected to the housing via a rotating shaft, the dialing plate comprises a first locking tongue facing the opening of the sleeve; and the dialing plate is driven to rotate such that the first locking tongue is selectively close to the first limiting member and abutted against the front side of the protruding teeth. 4.The stabilizer of claim 3, wherein the back side is a slope surface configured to guide and drive the dialing plate to rotate when the sleeve moves on the outer tube in the second direction; or / and the dialing plate is fixedly connected to the rotating shaft, the rotating shaft is rotatably connected to the housing, one end of the rotating shaft has a handle connected to a first end of the handle, and a second end of the handle extends around the sleeve to the other side of the sleeve; or / and the housing selectively has a first locking pin inserted thereinto, the first locking pin is configured to limit a rotation of the dialing plate in an unlocking direction to maintain an abutting state of the first locking tongue and the protruding teeth. 5.The stabilizer of claim 2, wherein the limiting points comprise protruding teeth each having a front side facing the second direction and a back side facing the first direction; and the housing on both sides of the first limiting member has a slot hole, a first end of the slot hole faces the sleeve, and a second end of the slot hole extends away from the sleeve. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The second limiting member comprises a second locking pin, which is movable along the length direction of the slot, and when the second locking pin is located at the first end of the slot, the front side of the protruding tooth can abut against the second locking pin to lock the freedom of the sleeve in the first direction.

6. The stabilizer of claim 5, wherein, the second end of the slot is provided with a notch opening towards the second direction, and the notch can accommodate at least a part of the second locking pin; or / and the angle between the length direction of the slot and the length direction of the outer tube in the first direction is an acute angle; or / and the front side of the protruding tooth is provided with an inwardly recessed limiting groove, and the limiting groove can accommodate at least a part of the second locking pin.

7. The stabilizer of claim 2, wherein, the first side wall of the shell is provided with a first pin hole; the second limiting member comprises a third locking pin, which can selectively abut against the limiting point through the first pin hole to lock the freedom of the sleeve in the first direction.

8. The stabilizer of claim 7, wherein, the limiting point comprises a limiting hole.

9. The stabilizer of claim 7, wherein, the limiting point comprises a protruding tooth, which has a front side facing the second direction and a back side facing the first direction.

10. The stabilizer of claim 9, wherein, the shell comprises a first shell and a second shell, the first shell is fixedly connected with the outer wall of the sleeve, and the first pin hole is arranged on the first shell; the second shell is fixedly connected with the outer wall of the first shell, and the second side wall of the second shell is provided with a second pin hole; the third locking pin comprises a locking tongue and a handle arranged at two ends thereof, the third locking pin is movable along the channel formed by the first pin hole and the second pin hole, and the locking tongue of the third locking pin can selectively abut against the front side of the protruding tooth through the first pin hole.

11. The stabilizer of claim 10, wherein, the third locking pin is provided with an outwardly protruding limiting ring, a spring is sleeved on the outer side of the third locking pin, one end of the spring abuts against the limiting ring, and the other end of the spring abuts against the second side wall, and the spring is configured to provide the third locking pin with an elastic force towards the first pin hole.

12. The stabilizer of claim 1, wherein, the first support structure further comprises an inner tube, which is sleeved in the outer tube and is in sliding connection with the inner wall of the outer tube; the inner tube can be extended or retracted from the outer tube in the first direction under the action of a driver.

13. The stabilizer of claim 12, wherein, the driver comprises a threaded rod and a sliding block, the threaded rod is fixedly connected with the outer tube in a rotatable manner; the sliding block is provided with a threaded hole, the sliding block is in threaded connection with the threaded rod, and the sliding block is fixedly connected with the inner tube; rotating the threaded rod can drive the inner tube to move along the length direction thereof.

14. The stabilizer of claim 13, wherein, The threaded rod is provided with a first gear; the driver further comprises a driving shaft, the driving shaft penetrating through the outer tube and being rotationally connected with the outer tube; a second gear is sleeved on the driving shaft, and the first gear and the second gear are in meshing connection; or / and An end of the threaded rod towards the first direction is provided with a limiting block, and the limiting block is in sliding connection with the inner wall of the inner tube.

15. The stabilizer of claim 1, wherein, An end of the first support structure towards the first direction is selectively provided with a connecting piece.

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