Trailer hitch, frame assembly and vehicle

Abstract

The utility model discloses a trailer hook, vehicle frame assembly and vehicle for vehicle chassis technical field. Trailer hook is installed at the first crossbeam department of vehicle frame assembly, and the trailer hook includes: first trailer hook connecting seat, first trailer hook connecting seat is equipped with below first crossbeam, and can along first direction with the bottom wall connection cooperation of first crossbeam, and first trailer hook connecting seat forms with trailer rope connecting portion, and trailer rope connecting portion is used for with trailer rope connection cooperation, second trailer hook connecting seat is connected in the upper portion of first trailer hook connecting seat, and can along second direction with the front wall connection cooperation of first crossbeam, in the Y direction projection of vehicle frame assembly, first direction with second direction intersection arrangement. The utility model discloses trailer hook structure strength is better, and more difficult to break and deformation.

Description

Technical Field

[0001] This utility model relates to the field of vehicle chassis technology, and in particular to a trailer hitch, a frame assembly, and a vehicle. Background Technology

[0002] A trailer hitch is a towing device used to move a vehicle out of trouble when it breaks down. The trailer hitch must have sufficient installation and structural strength to ensure the vehicle can safely escape the predicament. In actual use, the trailer hitch needs to withstand significant tensile forces; high installation and structural strength are essential for its proper functioning.

[0003] In related technologies, the trailer hook body is usually made of round steel structure, which is directly welded to the frame. The overall load-bearing and towing capacity is relatively weak. When the trailer is subjected to large or complex forces, it is prone to cracking, breakage and separation from the frame assembly. Utility Model Content

[0004] In view of this, the present invention aims to provide a trailer hitch with better structural strength and less susceptibility to breakage and deformation.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A trailer hitch is installed on a first crossbeam of a vehicle frame assembly, and the trailer hitch includes: a first trailer hitch connecting seat, the first trailer hitch connecting seat being disposed below the first crossbeam and capable of connecting and engaging with the bottom wall of the first crossbeam along a first direction, and the first trailer hitch connecting seat forming a trailer rope connecting portion for connecting and engaging with a trailer rope; and a second trailer hitch connecting seat, the second trailer hitch connecting seat being connected to the upper part of the first trailer hitch connecting seat and capable of connecting and engaging with the front wall of the first crossbeam along a second direction; in the Y-direction projection of the vehicle frame assembly, the...

[0007] The first direction and the second direction are intersected.

[0008] According to some embodiments of the present invention, the first trailer hook connecting seat includes:

[0009] The first connecting seat body has the trailer rope connecting part formed at the bottom of the first connecting seat body, and the second trailer hook connecting seat is connected to the first connecting seat body;

[0010] The first connecting plate segment is connected to the rear of the first connecting seat body and extends away from the second trailer hook connecting seat.

[0011] According to some embodiments of the present invention, the first connecting seat body is provided with two first connecting plate segments, which are arranged at intervals along a third direction on the first connecting seat body, and the spacing between the two first connecting plate segments in the third direction gradually increases from the first connecting seat body to the rear side.

[0012] According to some embodiments of the present invention, the first connecting plate segment is provided with a first mounting hole that extends through the first direction. The first mounting hole is used for the connecting member to pass through, so as to connect and fix the first trailer hook connecting seat to the first crossbeam.

[0013] According to some embodiments of the present invention, the second trailer hook connecting seat includes:

[0014] The second connecting plate segment extends upward from the first connecting seat body and is disposed opposite to and connected to the front wall of the first crossbeam.

[0015] A reinforcing rib is connected to the side of the second connecting plate segment opposite to the first crossbeam, and the reinforcing rib extends toward the body of the first connecting seat and is connected to the trailer rope connection part.

[0016] According to some embodiments of the present invention, the second connecting plate segment is provided with a second mounting hole that extends through the second direction. The second mounting hole is used for the connecting member to pass through, so as to connect and fix the second trailer hook connecting seat to the first crossbeam.

[0017] According to some embodiments of the present invention, the trailer rope connection portion extends downward from the first trailer hook connection seat and forms a third mounting hole that is through-type in a third direction, the third mounting hole being used to install the trailer rope.

[0018] According to some embodiments of the present utility model, the first trailer hook connecting seat has a first connecting surface, the first connecting surface is fitted to the bottom wall of the first crossbeam, and the first direction is perpendicular to the first connecting surface.

[0019] And / or, the second trailer hook connector has a second connecting surface, the second connecting surface being fitted against the front wall of the first crossbeam, and the second direction being perpendicular to the second connecting surface;

[0020] And / or, the first direction is perpendicular to the second direction.

[0021] According to some embodiments of the present invention, the first trailer hook connecting seat and the second trailer hook connecting seat are integrally formed.

[0022] Compared with existing technologies, the trailer hook of this utility model has the following advantages: compared with round steel structures, it has better structural strength and is less prone to breakage and deformation; the first trailer hook connecting seat is located below the first crossbeam and can be connected and cooperated with the bottom wall of the first crossbeam along the first direction, and the second trailer hook connecting seat is connected to the upper part of the first trailer hook connecting seat and can be connected and cooperated with the front wall of the first crossbeam along the second direction. That is to say, the trailer hook of this utility model is connected and cooperated with both the bottom wall and the front wall of the first crossbeam, resulting in a larger connection area and better connection strength; at the same time, the first trailer hook connecting seat and the second trailer hook connecting seat have different cooperation directions with the first crossbeam, which can jointly distribute the force and resist horizontal traction forces in different directions, making it less likely to detach from the first crossbeam.

[0023] Another object of this utility model is to provide a vehicle frame assembly including a trailer hitch according to the above embodiments of this utility model.

[0024] Compared with the prior art, the frame assembly described in this utility model has the same advantages as the frame assembly in the embodiment of this utility model, which will not be repeated here.

[0025] According to some embodiments of the present invention, the frame assembly further includes a first crossbeam, on which a trailer hitch is connected, and the trailer hitch is connected to the middle position of the first crossbeam in the Y direction; or, the frame assembly further includes a first crossbeam, on which at least one set of trailer hitches is connected, and each set of trailer hitches includes a plurality of trailer hitches spaced apart along the Y direction on the first crossbeam.

[0026] Another object of this utility model is to provide a vehicle including a frame assembly according to an embodiment of this utility model.

[0027] Compared to existing technologies, the advantages of the vehicle described in this utility model are the same as those of the chassis assembly in the embodiments of this utility model, and will not be repeated here. Attached Figure Description

[0028] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0029] Figure 1 This is a side view of the trailer hook installed on the first crossbeam according to an embodiment of the present utility model.

[0030] Figure 2 This is a first structural schematic diagram of a trailer hook according to an embodiment of the present utility model.

[0031] Figure 3 This is a schematic diagram of the second structure of the trailer hook according to an embodiment of the present utility model.

[0032] Figure 4 This is a front view of the trailer hook installed on the first crossbeam according to an embodiment of the present utility model.

[0033] Figure 5 This is a top view of the trailer hook installed on the first crossbeam according to an embodiment of the present utility model.

[0034] Figure 6 This is a rear view of the trailer hook installed on the first crossbeam according to an embodiment of the present utility model.

[0035] Figure 7 This is a bottom view of the trailer hook installed on the first crossbeam according to an embodiment of the present utility model.

[0036] Figure 8 This is a bottom view of the trailer hook according to an embodiment of the present utility model.

[0037] Figure 9 This is a front view of the trailer hitch according to an embodiment of the present utility model.

[0038] Figure 10 This is a side view of a trailer hitch according to an embodiment of the present utility model.

[0039] Figure 11 This is a top view of the trailer hitch according to an embodiment of the present utility model.

[0040] Figure 12 This is a schematic diagram of the approach angle boundary between the trailer hitch and the vehicle according to an embodiment of the present utility model.

[0041] Figure 13 It is the maximum motion envelope of the trailer rope in the horizontal plane according to the embodiments of this utility model.

[0042] Figure 14 This refers to the maximum motion envelope of the trailer rope in the vertical plane according to an embodiment of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] Trailer hook 100;

[0045] First trailer hitch connecting seat 10;

[0046] Trailer rope connector 101; third mounting hole 1011; first connector body 102;

[0047] Weight reduction hole 1021; First connecting plate segment 103; First mounting hole 1031; First connecting surface 104;

[0048] Second trailer hitch connector 20;

[0049] Second connecting plate segment 201; Second mounting hole 2011; Reinforcing rib 202; Second connecting surface 203;

[0050] First crossbeam 200; tow rope 300;

[0051] First direction F1; Second direction F2; Third direction F3; Front bumper 400; Vehicle approach angle boundary line L. Detailed Implementation

[0052] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0053] A trailer hitch is a towing device used to move a vehicle out of trouble when it breaks down. The trailer hitch must have sufficient installation and structural strength to ensure the vehicle can safely escape the predicament. In actual use, the trailer hitch needs to withstand significant tensile forces; high installation and structural strength are essential for its proper functioning.

[0054] In related technologies, the trailer hook body is usually made of round steel structure, which is directly welded to the frame. The overall load-bearing and towing capacity is relatively weak. When the trailer is subjected to large or complex forces, it is prone to cracking, breakage and separation from the frame assembly.

[0055] Based on this, this application proposes a trailer hitch, which is installed on the first crossbeam of the vehicle frame assembly. The trailer hitch includes a first trailer hitch connecting seat and a second trailer hitch connecting seat. The first trailer hitch connecting seat is located below the first crossbeam and can be connected and engaged with the bottom wall of the first crossbeam along a first direction. The first trailer hitch connecting seat has a trailer rope connecting portion for connecting and engaging with a trailer rope. The second trailer hitch connecting seat is connected to the upper part of the first trailer hitch connecting seat and can be connected and engaged with the front wall of the first crossbeam along a second direction. In the Y-direction projection of the vehicle frame assembly, the first direction and the second direction are intersecting.

[0056] Therefore, the trailer hook of this utility model embodiment includes a first trailer hook connecting seat and a second trailer hook connecting seat. Compared with the round steel structure, it has better structural strength and is less prone to breakage and deformation. The first trailer hook connecting seat is located below the first crossbeam and can be connected and cooperated with the bottom wall of the first crossbeam along a first direction. The second trailer hook connecting seat is connected to the upper part of the first trailer hook connecting seat and can be connected and cooperated with the front wall of the first crossbeam along a second direction. That is to say, the trailer hook of this utility model embodiment is connected and cooperated with both the bottom wall and the front wall of the first crossbeam, resulting in a larger connection area and better connection strength. At the same time, the first trailer hook connecting seat and the second trailer hook connecting seat have different cooperation directions with the first crossbeam, which can jointly distribute the force and resist horizontal traction forces in different directions, making it less likely for them to detach from the first crossbeam.

[0057] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0058] You can refer to Figures 1 to 14 According to an embodiment of the present invention, the trailer hook 100 is installed at the first crossbeam 200 of the frame assembly.

[0059] The frame assembly here can refer to the subframe, which is the core load-bearing structure in the vehicle chassis system. Located between the main body and the suspension / powertrain, it provides support, connection, and cushioning. The first crossbeam 200 refers to the crossbeam of the subframe located at the very front of the vehicle. The first crossbeam 200 has high structural strength, and the tow hook 100 is installed at the first crossbeam 200, which helps to increase the installation stability of the tow hook 100.

[0060] The trailer hitch 100 includes a first trailer hitch connecting seat 10 and a second trailer hitch connecting seat 20. The first trailer hitch connecting seat 10 is located below the first crossbeam 200 and can be connected and engaged with the bottom wall of the first crossbeam 200 along the first direction F1. The first trailer hitch connecting seat 10 has a trailer rope connecting part 101 for connecting and engaging with a trailer rope 300. The second trailer hitch connecting seat 20 is connected to the upper part of the first trailer hitch connecting seat 10 and can be connected and engaged with the front wall of the first crossbeam 200 along the second direction F2. In the Y-direction projection of the frame assembly, the first direction F1 and the second direction F2 are intersecting.

[0061] For example, the first trailer hook connector 10 and the second trailer hook connector 20 can be welded together, or the first trailer hook connector 10 and the second trailer hook connector 20 can be integrally formed.

[0062] For example, the trailer rope connection 101 can be a connecting ring, or the trailer rope connection 101 can be a connecting hook.

[0063] For example, a trailer rope connection portion 101 is formed at the bottom of the first trailer hook connector 10; or, a trailer rope connection portion 101 is formed at the front of the first trailer hook connector 10.

[0064] For example, trailer hitch 100 can be a front trailer hitch.

[0065] For example, in the frame assembly, the first direction F1 can be parallel to the Z direction, and the second direction F2 can be parallel to the X direction.

[0066] The first trailer hook connector 10 is located below the first crossbeam 200, and the trailer rope connector 101 is formed at the bottom of the first trailer hook connector 10, that is, the trailer rope connector 101 is formed below the first crossbeam 200. In this way, the trailer hook 100 is easy to use and can be used directly when needed.

[0067] When the trailer hook 100 is subjected to a horizontal traction force and the trailer rope connection 101 tends to flip upward, the second trailer hook connection seat 20 and the front wall of the first crossbeam 200 cooperate, and the first trailer hook connection seat 10 and the bottom wall of the first crossbeam 200 are connected and cooperated, which can better resist this tendency and reduce the possibility of the trailer hook 100 disengaging from the first crossbeam 200.

[0068] According to an embodiment of the present invention, the trailer hook 100 includes a first trailer hook connecting seat 10 and a second trailer hook connecting seat 20. Compared with a round steel structure, it has better structural strength and is less prone to breakage and deformation. The first trailer hook connecting seat 10 is located below the first crossbeam 200 and can be connected and engaged with the bottom wall of the first crossbeam 200 along the first direction F1. The second trailer hook connecting seat 20 is connected to the upper part of the first trailer hook connecting seat 10 and can be connected and engaged with the front wall of the first crossbeam 200 along the second direction F2. That is to say, the trailer hook 100 of the present invention is connected and engaged with both the bottom wall and the front wall of the first crossbeam 200, resulting in a larger connection area and better connection strength. At the same time, the first trailer hook connecting seat 10 and the second trailer hook connecting seat 20 are engaged with the first crossbeam 200 in different directions, which can jointly distribute the force and resist horizontal traction forces in different directions, making it less likely for them to detach from the first crossbeam 200.

[0069] According to some embodiments of this utility model, it can be referred to Figures 1 to 3 The first trailer hook connector 10 includes a first connector body 102 and a first connecting plate segment 103. The bottom of the first connector body 102 forms a trailer rope connecting part 101, and the second trailer hook connector 20 is connected to the first connector body 102. The first connecting plate segment 103 is connected to the rear of the first connector body 102 and extends away from the second trailer hook connector 20.

[0070] For example, the dimension of the first connecting plate segment 103 in the left-right direction may be greater than the dimension of the first connecting seat body 102 in the left-right direction; or, the dimension of the first connecting plate segment 103 in the left-right direction may be smaller than the dimension of the first connecting seat body 102 in the left-right direction; or, the dimension of the first connecting plate segment 103 in the left-right direction may be equal to the dimension of the first connecting seat body 102 in the left-right direction.

[0071] There may be one first connecting plate segment 103, or there may be two or more first connecting plate segments 103, and multiple first connecting plate segments 103 may be arranged at intervals.

[0072] The bottom of the first connecting seat body 102 forms a trailer rope connecting portion 101, and the first connecting plate segment 103 is connected to the rear of the first connecting seat body 102. That is, the trailer rope connecting portion 101 and the first connecting plate segment 103 are staggered in the front-rear direction. This avoids the trailer rope connecting portion 101 restricting the connection operation when the first connecting plate segment 103 is connected to the first crossbeam 200, thus providing the largest possible installation and operation space. The first connecting plate segment 103 extends away from the second trailer hook connecting seat 20, which helps to increase the mating area between the first connecting plate segment 103 and the first crossbeam 200, thereby increasing the connection stability.

[0073] According to some embodiments of this utility model, it can be referred to Figure 8 and Figure 11 The first connecting seat body 102 is provided with two first connecting plate segments 103. The two first connecting plate segments 103 are arranged at intervals along the third direction F3 on the first connecting seat body 102. The distance between the two first connecting plate segments 103 in the third direction F3 gradually increases from the first connecting seat body 102 to the rear side.

[0074] For example, in the frame assembly, the third direction F3 is parallel to the Y direction.

[0075] Two first connecting plate segments 103 are arranged at intervals along the third direction F3 on the first connecting seat body 102. This can make the first trailer hook connecting seat 10 and the first crossbeam 200 have good connection stability, while not increasing the size of the first trailer hook connecting seat 10 too much. This is beneficial to make the trailer hook 100 have a smaller size and lighter weight.

[0076] The spacing between the two first connecting plate segments 103 in the third direction F3 gradually increases from the first connecting seat body 102 towards the rear, forming a "trumpet" structure. This structure can guide the load to spread over a wider area, reduce the stress peak at the position corresponding to the first crossbeam 200 and the trailer rope connection 101, and avoid local tearing. The increased rear spacing between the two first connecting plate segments 103 is equivalent to increasing the lever arm, which can improve the first crossbeam 200's resistance to deformation when subjected to bending moments such as the pitching moment when the trailer is going up or down a slope.

[0077] According to some embodiments of this utility model, it can be referred to Figures 8 to 11 The first connecting plate segment 103 is provided with a first mounting hole 1031 that extends through the first direction F1. The first mounting hole 1031 is used for the connector to pass through so as to connect and fix the first trailer hook connecting seat 10 to the first crossbeam 200.

[0078] For example, the connector can be a bolt. For example, the first connecting plate segment 103 and the first crossbeam 200 can be connected by both connectors and welding to further improve the connection strength between the first trailer hook connecting seat 10 and the first crossbeam 200. For example, the first direction F1 can be the up-down direction or the Z-direction of the vehicle.

[0079] The first trailer hook connector 10 is installed by using a connector that passes through the first mounting hole 1031 on the first connecting plate section 103. This makes the installation operation easier and facilitates the later maintenance and replacement of the front trailer hook 100.

[0080] According to some embodiments of this utility model, it can be referred to Figure 9 The second trailer hook connecting seat 20 includes a second connecting plate segment 201 and a reinforcing rib 202. The second connecting plate segment 201 extends upward from the first connecting seat body 102 and is disposed opposite to and connected to the front wall of the first crossbeam 200. The reinforcing rib 202 is connected to the side of the second connecting plate segment 201 away from the first crossbeam 200 and extends toward the side of the first connecting seat body 102 and is connected to the trailer rope connecting part 101.

[0081] For example, there may be one or more second connecting plate segments 201. The second connecting plate segment 201 extends upward from the first connecting seat body 102 so that the connection area between the second trailer hook connecting seat 20 and the first crossbeam 200 is larger.

[0082] The reinforcing rib 202 is connected to the side of the second connecting plate segment 201 opposite to the first crossbeam 200, and extends towards the first connecting seat body 102 and connects to the trailer rope connection part 101, forming a "triangular stable structure" from the trailer rope connection part 101 to the second connecting plate segment 201, which significantly improves the ability of the trailer hook 100 to resist lateral bending and torsional moments. At the same time, the design of the reinforcing rib 202 can improve the structural strength of the second connecting plate segment 201 itself without excessively increasing the weight of the second trailer hook connecting seat 20.

[0083] According to some embodiments of this utility model, it can be referred to Figure 3 and Figure 9 The second connecting plate segment 201 is provided with a second mounting hole 2011 that runs through the second direction F2. The second mounting hole 2011 is used for the connector to pass through so as to connect and fix the second trailer hook connecting seat 20 to the first crossbeam 200.

[0084] For example, the second direction F2 can be the forward / backward direction or the X-direction of the vehicle. Exemplarily, the connector can be a bolt. Exemplarily, the second connecting plate segment 201 and the first crossbeam 200 can be connected by both connectors and welding to further improve the connection strength between the second trailer hook connector 20 and the first crossbeam 200.

[0085] The second trailer hook mounting seat is installed by using a connector that passes through the second mounting hole 2011 on the second connecting plate section 201. This makes the installation operation easier and facilitates the later maintenance and replacement of the second trailer hook connecting seat 20.

[0086] According to some embodiments of this utility model, it can be referred to Figure 10 The trailer rope connection part 101 extends downward from the first trailer hook connection seat 10 and forms a third mounting hole 1011 that passes through in the third direction F3. The third mounting hole 1011 is used to install the trailer rope 300.

[0087] For example, the third-direction F3 can be parallel to the Y-direction of the vehicle.

[0088] The trailer rope connector 101 extends downward from the first trailer hook connector 10, meaning it is located at the lowest part of the entire trailer hook 100. This makes the trailer rope connector 101 more convenient and easier to use. The third mounting hole 1011, which runs through the third direction F3, allows the trailer rope 300 or U-hook to pass laterally, facilitating a more even distribution of tension on both sides of the hole wall and resulting in a more uniform stress distribution on the trailer rope connector 101.

[0089] According to some other embodiments of the present invention, the trailer rope connection portion 101 extends forward from the first trailer hook connection seat 10 and forms a third mounting hole 1011 that is provided through in the first direction F1. The third mounting hole 1011 is used to install the trailer rope 300.

[0090] According to some embodiments of this utility model, it can be referred to Figure 1 The first trailer hook connecting seat 10 has a first connecting surface 104, which is fitted to the bottom wall of the first crossbeam 200, and the first direction F1 is perpendicular to the first connecting surface 104.

[0091] According to some embodiments of the present invention, the second trailer hook connecting seat 20 has a second connecting surface 203, the second connecting surface 203 is fitted to the front wall of the first crossbeam 200, and the second direction F2 is perpendicular to the second connecting surface 203.

[0092] The first direction F1 and the second direction F2 can be perpendicular to each other, or the first direction F1 and the second direction F2 can be at a set angle, such as 80°, 70°, 60°, 50°, etc.

[0093] According to some embodiments of the present invention, the first direction F1 and the second direction F2 are arranged perpendicularly.

[0094] According to some embodiments of the present invention, the first trailer hook connecting seat 10 has a first connecting surface 104, which is fitted to the bottom wall of the first crossbeam 200, and the first direction F1 is perpendicular to the first connecting surface 104; the second trailer hook connecting seat 20 has a second connecting surface 203, which is fitted to the front wall of the first crossbeam 200, and the second direction F2 is perpendicular to the second connecting surface 203; the first direction F1 and the second direction F2 are perpendicular to each other.

[0095] For example, the first connecting surface 104 extends horizontally and the second connecting surface 203 extends vertically.

[0096] In the above technical solution, the first connecting surface 104 and the second connecting surface 203 are perpendicular to each other to enhance the connection strength between the trailer hook 100 and the first crossbeam 200, maximize the load-bearing capacity of the towing force, and make the overall structure of the trailer hook 100 more reliable.

[0097] According to some embodiments of the present invention, the first trailer hook connecting seat 10 and the second trailer hook connecting seat 20 are integrally formed.

[0098] In other words, there is no seam between the first trailer hook connecting seat 10 and the second trailer hook connecting seat 20, which results in better structural strength and performance of the trailer hook 100. For example, the first trailer hook connecting seat 10 and the second trailer hook connecting seat 20 can be integrally forged.

[0099] In the above technical solution, the first trailer hook connecting seat 10 and the second trailer hook connecting seat 20 adopt an integrated design, which avoids the risks of stress concentration, fatigue cracks or loosening that are prone to occur at the welding or bolted connections in the case of a split design. Under stress, the load is transferred through continuous material rather than relying on the connection interface, thus improving the tensile / shear strength of the trailer hook 100. When the trailer swings or is towed at an angle, the integrated structure can more effectively resist torsional moments and avoid the fretting wear problem of the split structure.

[0100] In some embodiments, the first connector body 102 is further provided with a weight reduction hole 1021 so that the first connector body 102 has a smaller weight.

[0101] The second aspect of this utility model also proposes a vehicle frame assembly.

[0102] The vehicle frame assembly according to an embodiment of the present invention includes a longitudinal beam 1 and a trailer hitch 100 according to a first aspect embodiment of the present invention.

[0103] According to an embodiment of the present invention, the vehicle frame assembly includes a trailer hitch 100, which includes a first trailer hitch connecting seat 10 and a second trailer hitch connecting seat 20. Compared with a round steel structure, the first trailer hitch connecting seat 10 has better structural strength and is less prone to breakage and deformation. The first trailer hitch connecting seat 10 is located below the first crossbeam 200 and can be connected to the bottom wall of the first crossbeam 200 along the first direction F1. The second trailer hitch connecting seat 20 is connected to the upper part of the first trailer hitch connecting seat 10 and can be connected to the front wall of the first crossbeam 200 along the second direction F2. That is to say, the trailer hitch 100 of the present invention is connected to both the bottom wall and the front wall of the first crossbeam 200, resulting in a larger connection area and better connection strength. At the same time, the first trailer hitch connecting seat 10 and the second trailer hitch connecting seat 20 have different engagement directions with the first crossbeam 200, which can jointly distribute the force and resist horizontal traction forces in different directions, making it less likely for them to detach from the first crossbeam 200.

[0104] According to some embodiments of the present invention, the frame assembly further includes a first crossbeam 200, on which a tow hook 100 is connected. The tow hook 100 is connected to the middle position of the first crossbeam 200 in the Y direction, so that the front of the vehicle can be towed by the tow hook 100 located in the middle, which helps to improve the stability of the vehicle during the towing process.

[0105] According to some other embodiments of the present invention, the frame assembly further includes a first crossbeam 200, on which at least one set of trailer hooks 100 are connected, and each set of trailer hooks 100 includes a plurality of trailer hooks 100 spaced apart along the Y direction on the first crossbeam 200.

[0106] Preferably, multiple trailer hooks 100 in the same group of trailer hooks 100 are symmetrically arranged on the first crossbeam 200 relative to the central axis of the first crossbeam 200 (which can also be understood as the central axis of the frame assembly).

[0107] In the above embodiments, "multiple" means two or more, that is, a set of tow hooks 100 may include two, three, four, etc. Taking a set of tow hooks 100 including two tow hooks 100 as an example, when a vehicle needs to be towed or rescued, the two tow hooks 100 in the same set of tow hooks 100 can be connected to the tow rope 300 to achieve towing, so that the pulling force is more evenly distributed and avoids vehicle body twisting or directional deviation caused by unilateral force. On bumpy roads or during emergency braking, the design of the tow hooks 100 symmetrically arranged on the first crossbeam 200 can also counteract the asymmetrical impact force caused by uneven road surface, reducing the risk of the vehicle swaying during towing.

[0108] In addition, if an individual trailer hook 100 in the same group of trailer hooks 100 is damaged due to an accident (such as corrosion and breakage), the other trailer hooks 100 in the same group of trailer hooks 100 can temporarily bear the entire load and provide emergency towing capability.

[0109] The second aspect of this utility model also proposes a vehicle.

[0110] The vehicle according to an embodiment of the present invention includes a frame assembly according to a second aspect of the present invention.

[0111] The vehicle according to an embodiment of the present invention includes a frame assembly, the frame assembly including a tow hook 100, the tow hook 100 including a first tow hook connecting seat 10 and a second tow hook connecting seat 20. Compared with a round steel structure, it has better structural strength and is less prone to breakage and deformation. The first tow hook connecting seat 10 is located below the first crossbeam 200 and can be connected and engaged with the bottom wall of the first crossbeam 200 along a first direction F1. The second tow hook connecting seat 20 is connected to the upper part of the first tow hook connecting seat 10 and can be engaged and engaged along a second direction F1. The trailer hook 100 of this embodiment connects to both the bottom wall and the front wall of the first crossbeam 200, resulting in a larger connection area and better connection strength. Furthermore, the first trailer hook connecting seat 10 and the second trailer hook connecting seat 20 have different directions of engagement with the first crossbeam 200, allowing them to share the load and resist horizontal traction forces from different directions, thus preventing them from easily detaching from the first crossbeam 200.

[0112] For example, one can refer to Figure 12 The trailer hitch 100 is positioned above the vehicle's approach angle boundary line L to avoid reducing the vehicle's passability.

[0113] It should be noted that the arrangement of the tow rope connection part 101 should ensure that the tow rope 300 can reach the following ranges: the angle between the uppermost position of the tow rope 300 and the horizontal line is 5°, and the angle between the lowermost position of the tow rope 300 and the horizontal line is 5° (refer to...). Figure 14 (See reference) Figure 13 The angle between the leftmost reachable position of the tow rope 300 and the vertical plane containing the center position of the tow rope connection 101 is 25°, and the angle between the rightmost reachable position of the tow rope 300 and the vertical plane containing the center position of the tow rope connection 101 is 25°, so as to avoid interference between the tow rope 300 and the front bumper 400 and damage to the vehicle's front bumper during towing.

[0114] The term "vehicle" or "of vehicles" or other similar terms generally includes motor vehicles, such as passenger cars including sport utility vehicles (SUVs), buses, trucks, and various commercial vehicles; vessels including various boats and ships; aircraft, etc.; and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., vehicles derived from non-fossil fuels). A hybrid vehicle is a vehicle with two or more power sources, such as both gasoline and electric power.

[0115] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0116] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0117] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0118] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A trailer hitch, characterized in that, The trailer hitch (100) is mounted on the first crossbeam (200) of the chassis assembly, and the trailer hitch (100) includes: The first trailer hook connector (10) is located below the first crossbeam (200) and can be connected and engaged with the bottom wall of the first crossbeam (200) along the first direction (F1). The first trailer hook connector (10) has a trailer rope connection part (101) for connecting and engaging with the trailer rope (300). The second trailer hook connector (20) is connected to the upper part of the first trailer hook connector (10) and can be connected and engaged with the front wall of the first crossbeam (200) along the second direction (F2). In the Y-direction projection of the frame assembly, the first direction (F1) and the second direction (F2) are intersecting.

2. The trailer hitch according to claim 1, characterized in that, The first trailer hook connector (10) includes: The first connecting seat body (102) has the trailer rope connecting part (101) formed at the bottom of the first connecting seat body (102), and the second trailer hook connecting seat (20) is connected to the first connecting seat body (102); The first connecting plate segment (103) is connected to the rear of the first connecting seat body (102) and extends away from the second trailer hook connecting seat (20).

3. The trailer hitch according to claim 2, characterized in that, The first connecting seat body (102) is provided with two first connecting plate segments (103). The two first connecting plate segments (103) are arranged at intervals along a third direction (F3) on the first connecting seat body (102). The distance between the two first connecting plate segments (103) in the third direction (F3) gradually increases from the first connecting seat body (102) to the rear side.

4. The trailer hitch according to claim 2, characterized in that, The first connecting plate segment (103) is provided with a first mounting hole (1031) that extends through the first direction (F1). The first mounting hole (1031) is used for the connecting member to pass through, so as to connect and fix the first trailer hook connecting seat (10) to the first crossbeam (200).

5. The trailer hitch according to claim 2, characterized in that, The second trailer hitch connector (20) includes: The second connecting plate segment (201) extends upward from the first connecting seat body (102) and is disposed opposite to and connected to the front wall of the first crossbeam (200); A reinforcing rib (202) is connected to the side of the second connecting plate segment (201) away from the first crossbeam (200), and the reinforcing rib (202) extends toward the first connecting seat body (102) and is connected to the trailer rope connection part (101).

6. The trailer hitch according to claim 5, characterized in that, The second connecting plate segment (201) is provided with a second mounting hole (2011) that extends through the second direction (F2). The second mounting hole (2011) is used for the connector to pass through so as to connect and fix the second trailer hook connector (20) to the first crossbeam (200).

7. The trailer hitch according to claim 2, characterized in that, The trailer rope connection part (101) extends downward from the first trailer hook connection seat (10) and forms a third mounting hole (1011) that passes through in a third direction (F3). The third mounting hole (1011) is used to install the trailer rope (300).

8. The trailer hitch according to claim 1, characterized in that, The first trailer hook connecting seat (10) has a first connecting surface (104), the first connecting surface (104) is fitted to the bottom wall of the first crossbeam (200), and the first direction (F1) is perpendicular to the first connecting surface (104); And / or, the second trailer hook connector (20) has a second connecting surface (203), the second connecting surface (203) is fitted to the front wall of the first crossbeam (200), and the second direction (F2) is perpendicular to the second connecting surface (203); And / or, the first direction (F1) is perpendicular to the second direction (F2).

9. The trailer hitch according to claim 1, characterized in that, The first trailer hook connector (10) and the second trailer hook connector (20) are integrally formed.

10. A vehicle frame assembly, characterized in that, Includes a trailer hitch (100) according to any one of claims 1-9.

11. The frame assembly according to claim 10, characterized in that, The frame assembly also includes a first crossbeam (200), on which a trailer hitch (100) is connected, and the trailer hitch (100) is connected to the middle of the first crossbeam (200) in the Y direction; Alternatively, the frame assembly may further include a first crossbeam (200) on which at least one set of the trailer hitches (100) are connected, and each set of trailer hitches (100) includes a plurality of trailer hitches (100) spaced apart along the Y direction on the first crossbeam (200).

12. A vehicle, characterized in that, Includes the frame assembly as described in claim 10 or 11.

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