A square-mouth connector for a trailer frame

Abstract

This utility model relates to the field of trailer rack connections, and more particularly to a square-mouth connection device for trailer racks, including a bracket assembly and a mounting assembly connected to the upper end of the bracket assembly. The bracket assembly includes a fixed square tube connected to the lower end of the mounting assembly, and fixed insertion holes on the front and rear ends of the fixed square tube. Several fixed insertion holes are provided, and each hole penetrates the fixed square tube. The bracket assembly also includes a reinforcing ring connected to the outer surface of the fixed square tube, a fixing nut connected to the bottom end face of the fixed square tube, and an adjusting stud fitted with the fixing nut. This utility model enhances the load-bearing capacity of the fixed square tube through the reinforcing ring, and provides a stronger gripping force for the item to be towed after insertion into the fixed square tube through the interaction of the adjusting stud and the fixing nut. Furthermore, the multiple fixing insertion holes accommodate more insertion points, resulting in a wider adjustment range and higher strength.

Description

Technical Field

[0001] This utility model relates to the field of trailer frame connection, and in particular to a square-mouth connection device for trailer frames. Background Technology

[0002] A trailer rack is installed at the rear of a vehicle and serves as a connector for towing trailers, yachts, RVs, etc. The trailer rack connector is an integral part of the trailer rack, connecting the entire trailer rack to the trailer rack itself, and thus connecting the trailer rack to the items to be towed.

[0003] Currently, most common trailer rack connecting devices on the market use through holes on the side of the connecting device to connect the fasteners to the items to be towed. However, this connection method means that the items to be towed can only be clamped by the two sides during the towing process. This causes items that are not compatible with the connecting device to shake inside the connecting device, which in turn causes the connecting device to detach from the items to be towed. Utility Model Content

[0004] To overcome the problem that existing trailer rack connecting devices cause items to wobble inside the connecting device when being towed because only the two sides can be clamped during the towing process if the item is not compatible with the connecting device.

[0005] The technical solution of this utility model is: a square-mouth connecting device for a trailer frame, including a bracket assembly and a mounting assembly connected to the upper end of the bracket assembly;

[0006] The bracket assembly includes a fixed square tube connected to the lower end of the mounting assembly and fixed insertion holes opened on the front and rear ends of the fixed square tube.

[0007] Preferably, a plurality of fixing holes are provided, and the fixing holes penetrate the fixing square tube.

[0008] Preferably, the bracket assembly further includes a reinforcing ring connected to the outer surface of the fixed square tube, a fixing nut connected to the bottom end face of the fixed square tube, and an adjusting stud that is clearance-fitted onto the fixing nut.

[0009] Preferably, the mounting assembly includes a connector plate connected to the fixed square tube, a positioning plate connected to the connector plate, and a locking block connected to the connector plate.

[0010] Preferably, there are two plug-in pieces, and the two plug-in pieces are arranged symmetrically with the horizontal center line of the fixed square tube as the axis. There are several positioning pieces, and the several positioning pieces are connected between the two plug-in pieces. Adjacent positioning pieces are welded together.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model enhances the load-bearing capacity of the fixed square tube by setting a reinforcing ring, and provides a stronger gripping force for the object to be dragged after it is inserted into the fixed square tube by cooperating with the adjusting stud and the fixing nut. It also uses several fixing holes to match more insertion ports, making the adjustment range wider and the strength higher. Attached Figure Description

[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of the square-mouth connecting device of this utility model;

[0014] Figure 2 The diagram shows a three-dimensional structural schematic of the bracket assembly of the square-mouth connection device of this utility model. Reference numerals: 1. Bracket assembly; 2. Mounting assembly; 101. Fixed square tube; 102. Fixed insertion hole; 103. Reinforcing ring; 104. Fixed nut; 105. Adjusting stud; 201. Insertion piece; 202. Positioning piece; 203. Engaging block. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] A square-mouth connecting device for a trailer frame, according to Figures 1-2 As shown, it includes a bracket assembly 1 and a mounting assembly 2 connected to the upper end of the bracket assembly 1;

[0017] The bracket assembly 1 includes a fixed square tube 101 connected to the lower end of the mounting assembly 2, and fixed insertion holes 102 opened on the front and rear ends of the fixed square tube 101.

[0018] It should be noted that by using several fixed sockets 102 to match more sockets, the adjustable range is wider and the strength is higher.

[0019] according to Figure 1 As shown, several fixed insertion holes 102 are provided, and the fixed insertion holes 102 penetrate the fixed square tube 101.

[0020] according to Figure 1 and Figure 2 As shown, the bracket assembly 1 also includes a reinforcing ring 103 connected to the outer surface of the fixed square tube 101, a fixing nut 104 connected to the bottom end face of the fixed square tube 101, and an adjusting stud 105 that is clearance-fitted onto the fixing nut 104.

[0021] It should be noted that the reinforcing ring 103 is used to enhance the load-bearing capacity of the fixed square tube 101, and the adjusting stud 105 and the fixing nut 104 work together to give the item to be dragged a stronger gripping force after it is inserted into the fixed square tube 101.

[0022] according to Figure 1 As shown, the installation component 2 includes a plug-in piece 201 connected to the fixed square tube 101, a positioning piece 202 connected to the plug-in piece 201, and a locking block 203 connected to the plug-in piece 201.

[0023] according to Figure 1 As shown, there are two plug-in pieces 201, and the two plug-in pieces 201 are arranged symmetrically with the horizontal center line of the fixed square tube 101 as the axis. There are several positioning pieces 202, and the several positioning pieces 202 are connected between the two plug-in pieces 201. Adjacent positioning pieces 202 are welded together.

[0024] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A square tube connection device for a trailer frame, characterized by: It includes a bracket assembly (1) and a mounting assembly (2) connected to the upper end of the bracket assembly (1); The bracket assembly (1) includes a fixed square tube (101) connected to the lower end of the mounting assembly (2) and fixed insertion holes (102) opened on the front and rear ends of the fixed square tube (101).

2. The square tube coupling device for a trailer frame of claim 1, wherein: The fixed insertion hole (102) is provided in a plurality of manner, and the fixed insertion hole (102) penetrates the fixed square tube (101).

3. The square tube coupling device for a trailer frame of claim 2, wherein: The bracket assembly (1) also includes a reinforcing ring (103) connected to the outer surface of the fixed square tube (101), a fixing nut (104) connected to the bottom end face of the fixed square tube (101), and an adjusting stud (105) with clearance fit on the fixing nut (104).

4. The square tube coupling device for a trailer frame of claim 2, wherein: The mounting assembly (2) includes a plug-in piece (201) connected to the fixed square tube (101), a positioning piece (202) connected to the plug-in piece (201), and a locking block (203) connected to the plug-in piece (201).

5. A square-mouth connecting device for a trailer frame according to claim 4, characterized in that: Two plug-in pieces (201) are provided, and the two plug-in pieces (201) are arranged symmetrically with the horizontal center line of the fixed square tube (101) as the axis. Several positioning pieces (202) are provided, and several positioning pieces (202) are connected between the two plug-in pieces (201). Adjacent positioning pieces (202) are welded together.

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