Ball cover plate mounting structure

Abstract

The utility model relates to the technical field of trailer motor homes, in particular to a spherical cover plate mounting structure which comprises a chassis, a spherical cover plate and a spherical cover plate. The towing part is arranged at the front end of the chassis and used for being connected with a towing vehicle; the tail end of the traction frame is mounted at the front end of the chassis through a fixing piece; the fixing plate is mounted at the front end of the traction frame; the ball cover is integrated at the front end of the fixing plate, and a cavity used for containing a ball head is formed in the ball cover; the limiting assembly is arranged at one end of the ball cover and used for limiting the ball head and preventing the ball head from being separated from the cavity; the hand brake part is used for braking the motor home and comprises a positioning frame which is integrated on the fixing plate and serves as a main support of the hand brake part; the locking ratchet is mounted in a connecting groove formed in the positioning frame; the operating rod is rotationally arranged on the positioning frame; and the pawl is used for locking the ratchet in a matched mode, and the pawl is rotationally arranged on the operating rod through a damping rod.

Description

Technical Field

[0001] The present application relates to the technical field of trailer RVs, and in particular to a dome cover panel mounting structure. Background Art

[0002] Trailer RVs are favored by more and more travel enthusiasts due to their portability and flexibility. Traditional trailer structures usually rely only on simple ball head connections and lack effective limiting and fixing devices. They are prone to uncoupling accidents during driving, posing a safety hazard. Secondly, they are not easy to move when not towing.

[0003] In this regard, the present application proposes a ball cover plate installation structure to solve this problem. Summary of the Invention

[0004] The purpose of this application is to solve at least one of the technical deficiencies.

[0005] Therefore, one purpose of the present application is to propose a ball cover plate mounting structure to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present application provides a ball cover plate mounting structure, comprising: a chassis, which is used as the main support for towing a recreational vehicle; a towing part, which is provided at the front end of the chassis and is used to connect to the towing vehicle, including: a traction frame, the end of which is installed at the front end of the chassis through a fixing member; a fixing plate, which is installed at the front end of the traction frame; a ball cover, which is integrated at the front end of the fixing plate, and a cavity for accommodating a ball head is provided inside the ball cover; a limiting component, which is provided at one end of the ball cover and is used to limit the ball head to prevent it from falling out of the cavity; a handbrake part, which is used to brake the recreational vehicle, including: a positioning frame, which is integrated on the fixing plate , serving as the main support of the handbrake part; a locking ratchet is installed in a connecting groove opened on the positioning frame; an operating rod is rotatably set on the positioning frame; a pawl is used to cooperate with the locking ratchet, and the pawl is rotatably set on the operating rod through a damping rod; a first connecting member is rotatably connected to the bottom of the operating rod; a second connecting member is provided at one end of the first connecting member, and a guide wheel is rotatably installed on the second connecting member, and a brake line is rotatably set on the guide wheel, and both ends of the brake line are respectively connected to the wheel assembly; an adjusting screw, one end of which is rotatably set on the first connecting member, and the other end is connected to the second connecting member through a nut.

[0007] Preferably, the limiting assembly includes: a vertical tube installed on the fixed plate, one side of the vertical tube being connected to the ball cover, and the other side being connected to the positioning frame, the interior of the vertical tube being connected to the cavity in the ball cover, and a hanging ear being installed on the outer wall of the vertical tube; a limiting rod being slidably arranged in the vertical tube, and a handle being installed on the limiting rod; and a buckle being rotatably arranged on the limiting rod, and the buckle being used to cooperate with the hanging ear.

[0008] Preferably, any of the above solutions further includes an auxiliary wheel mechanism and a support assembly.

[0009] Preferably, the auxiliary wheel mechanism is used for position movement in a non-traction state, and includes: a connecting cylinder, which is mounted on the traction frame through a fixed frame; a screw rod, which is rotatably mounted in the connecting cylinder, and a sliding block is threadedly provided on the screw rod; a sliding cylinder, which is slidably provided in the connecting cylinder and is connected to the sliding block; and a moving wheel, on which a connecting piece is rotatably mounted, and the connecting piece is installed at the bottom of the sliding cylinder.

[0010] Preferably, from any of the above schemes, the auxiliary wheel mechanism further comprises: a rotating rod rotatably arranged on the connecting cylinder; a first bevel gear, and a second bevel gear meshing therewith, wherein the first bevel gear is mounted on the rotating rod, and the second bevel gear is mounted on the screw rod.

[0011] Preferably, any of the above schemes has four groups of support assemblies, two of which are arranged at the bottom of the traction frame, and the other two groups are arranged at the bottom of the chassis for auxiliary support in the parking state. A single group of support assemblies includes: a mounting frame for connecting to the traction frame or the chassis, and a positioning hole is provided on the mounting frame; a telescopic tube, the length of which is adjusted by a screw, and the telescopic tube is rotatably set on the mounting frame; a fixed plate, which is installed on the telescopic tube, and a plurality of through holes matching the positioning holes are provided on the fixed plate; a pin, which passes through the positioning hole and the through hole, and is used to lock the fixed plate on the mounting frame; a base, which is installed at the bottom of the telescopic tube, and the base is used to contact the ground.

[0012] Compared with the prior art, the advantages and beneficial effects of this application are:

[0013] 1. By setting a limit assembly, it is ensured that the ball head will not fall out of the cavity inside the ball cover during the connection process, which greatly improves the safety of the connection. By locking the ratchet and pawl, a reliable braking effect is achieved, ensuring the stability of the trailer caravan in the non-towing state.

[0014] 2. The design of the riser and limit rod in the limit assembly allows the user to easily lock and unlock the ball head through the handle, which is simple and quick to operate.

[0015] 3. Auxiliary wheel mechanism is set up to make the trailer caravan move easily even when not towing.

[0016] 4. The ball cover and handbrake are separated to simplify the structure and improve the convenience of assembly and maintenance. The ball cover, handbrake, auxiliary wheel mechanism and support components are all integrated on the traction frame and chassis, which reduces the installation space and optimizes the overall layout.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a three-dimensional schematic diagram according to an embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of partial assembly according to an embodiment of the present application;

[0021] Figure 3 It is a partial schematic diagram according to an embodiment of the present application;

[0022] Figure 4 It is a partial cross-sectional schematic diagram according to an embodiment of the present application;

[0023] Figure 5 Schematic diagram of the auxiliary wheel mechanism according to an embodiment of the present application;

[0024] Figure 6 Schematic diagram of a partial cross-section of a training wheel mechanism according to an embodiment of the present application;

[0025] Figure 7 Schematic diagram of a support assembly according to an embodiment of the present application.

[0026] In the figure: 1. chassis, 2. towing part, 21. traction frame, 22. fixing plate, 23. ball cover, 3. limit assembly, 31. riser, 32. hanging ear, 33. limit rod, 34. handle, 35. buckle, 4. handbrake part, 41. positioning frame, 42. locking ratchet, 43. operating lever, 44. pawl, 45. first connecting member, 46. second connecting member, 47. guide wheel, 48. brake line, 49. adjusting screw, 5. auxiliary wheel mechanism, 51. connecting tube, 52. fixing frame, 53. screw rod, 54. sliding block, 55. sliding tube, 56. moving wheel, 57. connecting member, 58. rotating rod, 6. support assembly, 61. mounting frame, 62. telescopic tube, 63. fixing plate, 64. pin, 65. base, 7. wheel assembly. DETAILED DESCRIPTION

[0027] like Figures 1 to 7 As shown, a ball cover plate installation structure includes a chassis 1, a towing part 2, a limit assembly 3, a handbrake part 4, an auxiliary wheel mechanism 5 and a support assembly 6.

[0028] Furthermore, the trailer part 2 is provided at the front end of the chassis 1 for connecting to a towing vehicle, including:

[0029] A traction frame 21, the end of which is mounted on the front end of the chassis 1 through a fixing member;

[0030] A fixing plate 22 is mounted on the front end of the traction frame 21;

[0031] The ball cover 23 is integrated at the front end of the fixing plate 22 , and a cavity for accommodating the ball head is provided inside the ball cover 23 .

[0032] Furthermore, the limiting component 3 is provided at one end of the ball cover 23 for limiting the ball head to prevent it from leaving the cavity, including:

[0033] A standpipe 31 is mounted on the fixing plate 22. One side of the standpipe 31 is connected to the spherical cover 23, and the other side is connected to the positioning frame 41. The interior of the standpipe 31 is connected to the cavity in the spherical cover 23. A hanging ear 32 is installed on the outer wall of the standpipe 31.

[0034] A limiting rod 33 is slidably disposed in the vertical tube 31, and a handle 34 is installed on the limiting rod 33;

[0035] The buckle 35 is rotatably provided on the limiting rod 33 , and the buckle 35 is used to cooperate with the hanging ear 32 .

[0036] First, place the ball head on the tractor vehicle into the cavity of the ball cover 23. Then, by holding the handle 34, insert the limit rod 33 into the interior of the vertical pipe 31 and place it in the cavity to block the ball head so that the ball head cannot move downward in the cavity. Operate the buckle 35 to buckle the buckle 35 on the hanging ear 32, and lock the buckle 35 on the hanging ear 32 through the hanging ear 32 lock.

[0037] Furthermore, the handbrake unit 4 is used to brake the RV, including:

[0038] The positioning frame 41 is integrated on the fixing plate 22 and serves as the main support of the handbrake part 4;

[0039] The locking ratchet 42 is installed in the connecting groove provided on the positioning frame 41;

[0040] An operating rod 43 is rotatably mounted on the positioning frame 41;

[0041] A pawl 44 is used to cooperate with the locking ratchet 42, and the pawl 44 is rotatably arranged on the operating rod 43 through a damping rod;

[0042] A first connecting member 45 is rotatably connected to the bottom of the operating rod 43;

[0043] A second connecting member 46 is provided at one end of the first connecting member 45 , a guide wheel 47 is rotatably mounted on the second connecting member 46 , a brake line 48 is rotatably mounted on the guide wheel 47 , and both ends of the brake line 48 are respectively connected to the wheel assembly 7 ;

[0044] The adjusting screw 49 has one end rotatably set on the first connecting member 45, and the other end is connected to the second connecting member 46 through a nut. The setting of the adjusting screw 49 facilitates the adjustment of the distance between the first connecting member 45 and the second connecting member 46, and thus facilitates the adjustment of the tension of the brake line 48.

[0045] Further, such as Figures 5 and 6 As shown, the auxiliary wheel mechanism 5 is used for position movement in a non-traction state, and includes:

[0046] The connecting tube 51 is mounted on the traction frame 21 via a fixing frame 52;

[0047] A screw rod 53 is rotatably mounted in the connecting tube 51 , and a sliding block 54 is threadedly provided on the screw rod 53 ;

[0048] The sliding cylinder 55 is slidably disposed in the connecting cylinder 51 and is connected to the sliding block 54;

[0049] A moving wheel 56 on which a connecting member 57 is rotatably mounted. The connecting member 57 is mounted on the bottom of the sliding cylinder 55;

[0050] The auxiliary wheel mechanism 5 further includes:

[0051] A rotating rod 58 is rotatably mounted on the connecting tube 51;

[0052] The first bevel gear and the second bevel gear meshing therewith are mounted on the rotating rod 58 and the second bevel gear is mounted on the screw rod 53 .

[0053] When in use, hold the rotating rod 58 and drive it to rotate. The rotating rod 58 drives the first bevel gear to rotate, and drives the second bevel gear engaged with it to rotate. The second bevel gear drives the screw rod 53 to rotate, and then drives the sliding cylinder 55 to move, and drives the moving wheel 56 to adjust until it touches the ground.

[0054] Further, such as Figure 7As shown, there are four groups of support assemblies 6, two of which are set at the bottom of the traction frame 21, and the other two are set at the bottom of the chassis 1 for auxiliary support in the parking state. A single group of support assemblies 6 includes:

[0055] A mounting frame 61 is used to connect to the traction frame 21 or the chassis 1, and a positioning hole is opened on the mounting frame 61;

[0056] The telescopic tube 62 is adjustable in length by a screw and is rotatably mounted on the mounting bracket 61;

[0057] The fixing plate 63 is mounted on the telescopic tube 62 and has a plurality of through holes that match the positioning holes;

[0058] A pin 64 extends through the positioning hole and through the through hole to lock the fixing plate 63 on the mounting frame 61;

[0059] The base 65 is installed at the bottom of the telescopic tube 62 and is used to contact the ground.

[0060] When in use, the latch is removed, and the telescopic tube 62 can be rotated relative to the mounting frame 61. The telescopic tube 62 is operated so that the telescopic tube 62 is relatively perpendicular to the base frame and the traction frame 21. The latch is reinserted so that the telescopic tube 62 cannot be adjusted. Finally, the length of the telescopic tube 62 is adjusted so that the base 65 contacts the ground.

Claims

1. A ball cover plate mounting structure, characterized in that: include: Chassis, the main support for towing the RV; The trailer is provided at the front end of the chassis and is used for connecting to a towing vehicle, including: a traction frame, the end of which is mounted on the front end of the chassis through a fixing member; A fixing plate, mounted on the front end of the traction frame; A ball cover is integrated at the front end of the fixing plate, and a cavity is provided inside the ball cover for accommodating the ball head; A limiting component is provided at one end of the ball cover to limit the ball head to prevent it from leaving the cavity; The handbrake is used to brake the RV, including: A positioning frame, integrated into the fixing plate, serving as the main support for the handbrake unit; A locking ratchet is installed in a connecting groove provided on the positioning frame; An operating rod rotatably mounted on the positioning frame; a pawl, for cooperating with the locking ratchet, the pawl being rotatably arranged on the operating rod via a damping rod; a first connecting member, rotatably connected to the bottom of the operating rod; a second connecting member, provided at one end of the first connecting member, a guide wheel being rotatably mounted on the second connecting member, a brake line being rotatably mounted on the guide wheel, and two ends of the brake line being respectively connected to the wheel assembly; An adjusting screw has one end rotatably arranged on the first connecting member, and the other end is connected to the second connecting member through a nut.

2. The ball cover plate mounting structure according to claim 1, characterized in that: The limiting component includes: A riser is mounted on the fixing plate, one side of the riser is connected to the spherical cover, and the other side is connected to the positioning frame. The interior of the riser is connected to the cavity in the spherical cover, and a hanging ear is installed on the outer wall of the riser; a limiting rod, slidably disposed in the vertical tube, and a handle mounted on the limiting rod; A buckle is rotatably arranged on the limiting rod, and the buckle is used to cooperate with the hanging ear.

3. The ball cover plate mounting structure according to claim 1, characterized in that: Also included are a training wheel mechanism and a support assembly.

4. The ball cover plate mounting structure according to claim 3, characterized in that: The auxiliary wheel mechanism is used for position movement in a non-traction state, and includes: A connecting cylinder is mounted on the traction frame via a fixing frame; A screw rod is rotatably mounted in the connecting cylinder, and a sliding block is threadedly provided on the screw rod; A sliding cylinder is slidably arranged in the connecting cylinder and connected to the sliding block; The moving wheel has a connecting piece rotatably mounted thereon, and the connecting piece is mounted on the bottom of the sliding cylinder.

5. The ball cover plate mounting structure according to claim 4, characterized in that: The auxiliary wheel mechanism further includes: A rotating rod, rotatably arranged on the connecting cylinder; A first bevel gear and a second bevel gear meshing therewith, wherein the first bevel gear is mounted on the rotating rod and the second bevel gear is mounted on the screw rod.

6. The ball cover plate mounting structure according to claim 3, characterized in that: There are four groups of support assemblies, two of which are set at the bottom of the traction frame, and the other two are set at the bottom of the chassis for auxiliary support in the parking state. A single group of support assemblies includes: A mounting frame, used to connect to the traction frame or chassis, with positioning holes formed on the mounting frame; A telescopic tube, the length of which is adjusted by a screw, and the telescopic tube is rotatably mounted on the mounting frame; A fixed plate is mounted on the telescopic tube, and the fixed plate is provided with a plurality of through holes that match the positioning holes; a pin extending through the positioning hole and extending through the through hole for locking the fixing plate to the mounting frame; A base is installed at the bottom of the telescopic tube, and the base is used to contact the ground.

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