A hitch device for a trailer

Abstract

This utility model relates to the field of trailer towing technology and provides a trailer-mounted RV anti-detachment device, including a towing hook and a rotating column. One end of the towing hook is equipped with an mounting plate. The anti-detachment device further includes: a snap fastener, fitted onto the towing hook; a splicing component, which has a two-part structure, one part located on the other end of the towing hook and the other part located at the bottom of the snap fastener; a U-shaped block, rotatably mounted on the bottom of the rotating column; and a fixing component located within the U-shaped block to fix the position of the towing hook and merge with the U-shaped block, further stabilizing the connection of the device. In this utility model, the installation design of the splicing component is more stable, and even if the bolts strip, there will be no interruption of traction. Simultaneously, bolt two and a positioning tube are used to limit the center block, preventing loosening during traction due to insufficient components.

Description

Technical Field

[0001] This utility model relates to the field of trailer traction technology, and in particular to a trailer caravan anti-detachment device. Background Technology

[0002] In daily life, when a vehicle encounters an unexpected situation and needs to be towed, a towable caravan is needed to help the vehicle be moved to a repair shop in a timely manner. Safety is extremely important during the towing process, so this design provides a towable caravan anti-detachment device.

[0003] In the prior art, such as Chinese Patent No. CN219487095U, a towable RV anti-detachment device includes a U-shaped frame and a U-shaped plate. A first connecting rod is fixedly installed in the middle of the outer surface of one side of the U-shaped frame, a third connecting rod is fixedly installed in the middle of the outer surface of one end of the U-shaped plate, and second connecting rods are fixedly installed on the left and right sides of the outer surface of the other end of the U-shaped plate. There are two sets of second connecting rods, and a collar is fixedly installed between the two sets of second connecting rods. A limit rod is provided at the upper part of the U-shaped frame, and a connecting assembly is provided between the limit rod and the U-shaped frame. A positioning shaft is fixedly installed at the bottom of the inner cavity of the U-shaped frame, and a limit block is provided at the upper part of the positioning shaft. Slots are provided on the left and right sides of the upper outer surface of the U-shaped frame, and locking grooves are provided at the upper part of the outer surfaces of both sides of the U-shaped frame. The towable RV anti-detachment device of this utility model has the advantages of simple structure, multiple protections, and enhanced safety.

[0004] While the above scheme has the advantages mentioned above, its disadvantages are that the docking and installation design is unstable, the bolts are prone to aging and stripping due to long-term exposure to the outside, and safety accidents are likely to occur during traction. In addition, due to the lack of components during installation, components are prone to loosening during traction. Utility Model Content

[0005] The purpose of this invention is to solve the problem of easy stripping of bolts in the prior art, and at the same time, to solve the problem of too few parts.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a towable RV anti-detachment device: comprising a tow hook and a rotating column, wherein one end of the tow hook is equipped with an mounting plate, and the towable RV anti-detachment device further comprises:

[0007] The snap fastener is fitted onto the traction hook.

[0008] The splicing component has a structure consisting of two parts, one part being located on the other end of the traction hook and the other part being located at the bottom of the splicing buckle. The two parts can be spliced ​​together when the device is docked.

[0009] A U-shaped block is rotatably mounted on the bottom of the rotating column;

[0010] A fastening element, located within the loop-shaped block, is used to fix the position of the traction hook and merge it with the loop-shaped block, further stabilizing the docking of the device.

[0011] In a preferred embodiment, the splicing component includes:

[0012] The first slot is located on one side of the traction hook;

[0013] A fixing rod is rotatably installed between the two sides of the inner wall of the slot one via a rotating shaft;

[0014] A positioning groove is formed on the fixing rod;

[0015] The fixed rod can rotate around the pivot point when manually operated.

[0016] The technical effect of adopting the above-mentioned further solution is that a splicing effect can be achieved by flipping the fixed rod.

[0017] In a preferred embodiment, the splicing component further includes:

[0018] Two slots are provided on one side of the snap fastener;

[0019] Two springs are respectively installed on the inner walls of the two slots.

[0020] A pull plate is installed on the other side of the two springs, and a pull rod is installed on one side of the pull plate;

[0021] A fixing column is installed on the other side of the pull plate.

[0022] The technical effect of adopting the above-mentioned further solution is that the position of the fixing rod is restricted by the pull plate.

[0023] In a preferred embodiment, the splicing component further includes:

[0024] Bolt 1 penetrates the side wall of the interlocking buckle and is threadedly connected to the inner wall of the interlocking buckle;

[0025] A splicing groove is formed on one side of the bolt;

[0026] The splicing groove can fit into the fixed column.

[0027] The technical effect of adopting the above-mentioned further solution is that the installation of the splicing component is further secured by the bolt.

[0028] As a preferred embodiment, the anti-detachment device for towed caravans also includes:

[0029] A center block is fitted onto the traction hook, and engaging grooves are provided on both sides of the center block;

[0030] The third slot is located at the bottom of the inner wall of the engagement slot.

[0031] The technical advantage of adopting the above-mentioned further solution is that the central block provides space for the docking of the fixed components.

[0032] In a preferred embodiment, the fastening member includes:

[0033] Mounting plate two is installed on the top of the rotating column;

[0034] The second mounting plate is installed on the bottom of the vehicle to be towed.

[0035] The technical effect of adopting the above-mentioned further solution is that the second mounting plate provides installation space for the rotational installation of the rotating column.

[0036] In a preferred embodiment, the fastening member further includes:

[0037] Bolt 2 penetrates one side wall of the spiral-shaped block and is threadedly connected to the side wall of the spiral-shaped block;

[0038] The positioning tube is embedded in the other side wall of the loop-shaped block.

[0039] The technical effect of adopting the above-mentioned further solution is that the center block is fixed by the second bolt and the positioning tube, thereby stabilizing the installation of the traction hook.

[0040] In a preferred embodiment, the fastening member further includes:

[0041] The fourth slot is formed inside the positioning tube;

[0042] The L-shaped limiting plate is embedded in the four slots;

[0043] Multiple springs are installed on the top of the L-shaped limiting plate;

[0044] The tops of multiple springs 2 are connected to the top of the inner wall of the slot 4.

[0045] The technical effect of adopting the above-mentioned further solution is that the L-shaped limiting plate is used to fix and limit the positioning tube and the center block.

[0046] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0047] 1. This utility model involves adjusting the position of the traction hook so that its center block is located at the center of the U-shaped block. Pulling the pull plate and manually flipping the fixing rod allows the positioning groove to fit onto bolt one after flipping. At this point, releasing the pull plate allows it to return to its original position under the action of spring one, and the fixing post is embedded in the positioning groove and mates with the splicing groove. In this state, rotating bolt one further stabilizes the splicing groove and the fixing post. This design utilizes the fitting of the fixing post and the splicing groove within the positioning groove to fix the position of the fixing rod, making the installation of the splicing parts more stable. Even if the bolt strips, there will be no interruption of traction.

[0048] 2. In this utility model, a rotating bolt two is connected to a U-shaped block via a threaded connection, allowing the bolt two to move to one side. One end of the bolt engages in a locking groove during this movement. The center block, pushed by the bolt two, moves to one side synchronously with the bolt two. The other locking groove is thus fitted onto the positioning tube. As the locking groove moves along the surface of the positioning tube, the right-angled end of the L-shaped limiting plate engages in a slot three under the action of multiple springs two, thus fixing the traction hook. In this design, the bolt two and the positioning tube simultaneously limit the center block to prevent loosening during traction due to insufficient components. Attached Figure Description

[0049] Figure 1 A schematic diagram of the main structure of a towable RV anti-detachment device provided by this utility model;

[0050] Figure 2 A schematic diagram of the splicing component structure of a towable RV anti-detachment device provided by this utility model;

[0051] Figure 3 A schematic diagram of the explosive structure of the splicing buckle of the anti-detachment device for a towed RV provided by this utility model;

[0052] Figure 4 A schematic diagram of the splicing buckle structure of a towable RV anti-detachment device provided by this utility model;

[0053] Figure 5 A schematic diagram of the device separation structure of a towable RV anti-detachment device provided by this utility model;

[0054] Figure 6 A cross-sectional view of the U-shaped block structure of the anti-detachment device for a towed RV provided by this utility model;

[0055] Figure 7 This is a cross-sectional view of the positioning tube of a towable RV anti-detachment device provided by this utility model.

[0056] Legend:

[0057] 1. Traction hook; 101. Mounting plate one; 102. Groove one; 103. Fixing rod; 104. Positioning groove; 2. Interlocking buckle; 201. Groove two; 202. Spring one; 203. Pull plate; 204. Pull rod; 205. Fixing column; 206. Bolt one; 207. Interlocking groove; 3. Center block; 301. Engaging groove; 302. Groove three; 4. Rotating column; 401. Mounting plate two; 5. U-shaped block; 501. Bolt two; 502. Positioning tube; 503. Groove four; 504. L-shaped limit plate; 505. Spring two. Detailed Implementation

[0058] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0059] Example 1:

[0060] Please see Figures 1-7 This embodiment provides a towable RV anti-detachment device that can prevent safety accidents caused by stripped bolt threads. The specific idea is as follows:

[0061] A towable caravan anti-detachment device includes a tow hook 1 and a rotating column 4. One end of the tow hook 1 is equipped with an mounting plate 101. The towable caravan anti-detachment device also includes a snap fastener 2 and a splicing component.

[0062] Among them, the splicing buckle 2, which plays a fixing role, is sleeved on the traction hook 1.

[0063] Meanwhile, the structure of the splicing component is divided into two parts, one part is located on the other end of the traction hook 1, and the other part is located at the bottom of the splicing buckle 2, so that the two parts can be spliced ​​together when the device is docked.

[0064] As examples, in this embodiment, the splicing components include: slot 102, fixing rod 103, positioning slot 104, two slots 201, two springs 202, pull plate 203, fixing post 205, bolt 206, and splicing groove 207.

[0065] Among them, the slot 102, which plays an auxiliary role, is opened on one side of the traction hook 1.

[0066] Meanwhile, the fixing rod 103, which plays a flipping role, is rotatably installed between the two sides of the inner wall of the slot 102 via a rotating shaft.

[0067] In addition, a positioning groove 104 that serves to fix the rod is provided on the fixing rod 103.

[0068] It should be noted that the fixed rod 103 can rotate around the pivot point when manually operated.

[0069] Among them, the two slots 201 that play a spatial role are opened on one side of the splicing buckle 2.

[0070] Meanwhile, two springs 202, which provide elasticity, are respectively installed on the inner walls of the two slots 201.

[0071] In addition, a protective pull plate 203 is installed on the other side of the two springs 202, and a pull rod 204 is installed on one side of the pull plate 203.

[0072] In this embodiment, a fixing post 205 is also provided and installed on the other side of the pull plate 203.

[0073] Among them, the bolt 206, which plays a fixing role, penetrates the side wall of the splicing buckle 2 and is threadedly connected to the inner wall of the splicing buckle 2.

[0074] In addition, the splicing groove 207, which also serves a fixing function, is provided on one side of bolt 206.

[0075] It should be noted that the splicing groove 207 can fit into the fixing post 205.

[0076] In this embodiment, the position of the traction hook 1 is adjusted so that the center block 3 on its surface is located at the center of the U-shaped block 5. The pull plate 203 is pulled open, and the fixing rod 103 is manually flipped so that the positioning groove 104 is fitted onto the bolt 206 after flipping. At this time, the pull plate 203 is released so that it is reset under the action of the spring 202, and the fixing post 205 is embedded in the positioning groove 104 and spliced ​​with the splicing groove 207. In this state, the bolt 206 is rotated, and the splicing groove 207 and the fixing post 205 are further stabilized.

[0077] Example 2:

[0078] Please see Figures 1-7 Based on Example 1, this example provides a towable caravan anti-detachment device that can make installation more stable. The specific idea is as follows:

[0079] The anti-detachment device for the trailer caravan also includes: a U-shaped block 5, a fastening component, a center block 3, and a slot 302.

[0080] The U-shaped block 5, which serves as the docking component, is rotatably mounted at the bottom of the rotating column 4.

[0081] Meanwhile, the fixed component is located inside the loop block 5 to fix the position of the traction hook 1 and merge it with the loop block 5, further stabilizing the docking of the device.

[0082] The central block 3, which plays a fixing role, is sleeved on the traction hook 1, and the central block 3 has a locking groove 301 on both sides.

[0083] In addition, the three slots 302 that serve as limiting points are located at the bottom of the inner wall of the engaging slot 301.

[0084] As examples, in this embodiment, the fasteners include: mounting plate 2 401, bolt 2 501, positioning tube 502, slot 4 503, L-shaped limiting plate 504, and multiple springs 2 505.

[0085] Among them, the mounting plate 401, which plays a role in installation, is installed on the top of the rotating column 4.

[0086] It should be noted that mounting plate 2401 is installed on the bottom of the vehicle to be towed.

[0087] Among them, the bolt 501, which plays a fixing role, penetrates one side wall of the loop block 5 and is threadedly connected to the side wall of the loop block 5.

[0088] In addition, the positioning tube 502, which also serves a fixing function, is embedded in another side wall of the U-shaped block 5.

[0089] In this design, a slot 503 is also provided inside the positioning tube 502.

[0090] Meanwhile, the L-shaped limiting plate 504, which serves as a limiting device, is embedded in the slot 503.

[0091] In addition, multiple springs 505, which provide elasticity, are installed on the top of the L-shaped limiting plate 504.

[0092] It should be noted that the tops of multiple springs 2 505 are connected to the top of the inner wall of slot 4 503.

[0093] In this embodiment, the rotating bolt 501 is connected to the U-shaped block 5 by a thread, causing the bolt 501 to move to one side. One end of the bolt 501 is embedded in one of the engagement grooves 301 during this movement. The center block 3 moves to one side synchronously with the bolt 501 under the push of the bolt 501. The other engagement groove 301 is thus fitted onto the positioning tube 502. During the movement of the engagement groove 301 along the surface of the positioning tube 502, the right-angle end of the L-shaped limiting plate 504 is embedded in the slot 302 under the action of multiple springs 505 to complete the fixation of the traction hook 1.

[0094] Working principle:

[0095] When the driver needs to dock the tractor and the vehicle to be towed, the towing hook 1 of the tractor can be placed inside the U-shaped block 5, so that the center block 3 is located in the center of the U-shaped block 5. At this time, the fixing rod 103 is manually flipped so that the fixing rod 103 rotates around its axis. When the fixing rod 103 rotates, the pull plate 203 is manually pulled open so that the spring 202 is in a stretched state. When the positioning groove 104 is sleeved on the bolt 206 under the flipping of the fixing rod 103, the pull plate 203 is released. Under the elastic action of the spring 202, the pull plate 203 is reset. At this time, the fixing post 205 is embedded in the positioning groove 104. The bolt 206 is manually rotated so that the bolt 206 is more firmly spliced ​​to the fixing rod 103. During the rotation of the bolt 206, the splicing groove 207 and the fixing post 205 fit more stably, further stabilizing the installation.

[0096] After the driver completes the assembly process of the device, he manually rotates bolt 2 501 so that one end of bolt 2 501 is inserted into one of the engagement slots 301. Under the push of bolt 2 501, the center block 3 moves to one side, and the other engagement slot 301 is fitted onto the positioning tube 502. During the process of engagement slot 301 covering the positioning tube 502, the right-angle end of the L-shaped limiting plate 504 is inserted into the slot 3 302 under the action of multiple springs 2 505 to complete the fixation of the traction hook 1. When it is necessary to remove the fixed part, rotate bolt 2 501 to pull it out from the engagement slot 301 on one side. Then pull up the L-shaped limiting plate 504 so that the right-angle end of the L-shaped limiting plate 504 is pulled out from the slot 3 302 to release the limit.

[0097] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0098] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A towable RV anti-detachment device, comprising a tow hook (1) and a rotating column (4), wherein one end of the tow hook (1) is fitted with an mounting plate (101), characterized in that, The anti-detachment device for the towed caravan also includes: The splicing buckle (2) is fitted onto the traction hook (1); The splicing component has a structure consisting of two parts, one part being located on the other end of the traction hook (1) and the other part being located at the bottom of the splicing buckle (2), which can be spliced ​​together when the device is docked; The U-shaped block (5) is rotatably mounted on the bottom of the rotating column (4); The fastening element is located inside the loop block (5) to fix the position of the traction hook (1) and merge it with the loop block (5) to further stabilize the docking of the device.

2. The anti-detachment device for towed caravans according to claim 1, characterized in that, The splicing components include: A slot 1 (102) is provided on one side of the traction hook (1); The fixing rod (103) is rotatably installed between the two sides of the inner wall of the slot one (102) via a rotating shaft; A positioning groove (104) is provided on the fixing rod (103); The fixed rod (103) can rotate around the pivot point under manual operation.

3. The anti-detachment device for towed caravans according to claim 1, characterized in that, The splicing component also includes: Two slots (201) are provided on one side of the splicing buckle (2); Two springs (202) are respectively installed on the inner walls of the two slots (201); A pull plate (203) is installed on the other side of the two springs (202), and a pull rod (204) is installed on one side of the pull plate (203); A fixing column (205) is installed on the other side of the pull plate (203).

4. The anti-detachment device for towed caravans according to claim 3, characterized in that, The splicing component also includes: Bolt 1 (206) penetrates the side wall of the snap fastener (2) and is threadedly connected to the inner wall of the snap fastener (2); A splicing groove (207) is provided on one side of the bolt (206); The splicing groove (207) can fit into the fixing column (205).

5. The anti-detachment device for towed caravans according to claim 1, characterized in that, The anti-detachment device for the trailer caravan also includes: A center block (3) is fitted onto the traction hook (1), and engaging grooves (301) are provided on both sides of the center block (3); The third groove (302) is opened at the bottom of the inner wall of the engaging groove (301).

6. The anti-detachment device for towed caravans according to claim 1, characterized in that, The fastening element includes: Mounting plate 2 (401) is installed on the top of the rotating column (4); The second mounting plate (401) is installed on the bottom of the vehicle to be towed.

7. The anti-detachment device for towed caravans according to claim 1, characterized in that, The fastening element also includes: Bolt 2 (501) penetrates one side wall of the spiral block (5) and is threaded to the side wall of the spiral block (5); The positioning tube (502) is embedded in the other side wall of the loop block (5).

8. The anti-detachment device for towed caravans according to claim 7, characterized in that, The fastening element also includes: The fourth slot (503) is formed inside the positioning tube (502); L-shaped limiting plate (504) is embedded in the slot four (503); Multiple springs (505) are installed on the top of the L-shaped limiting plate (504); The tops of multiple springs (505) are connected to the top of the inner wall of the slot (503).

Images