Connecting assembly and automobile

Abstract

The utility model relates to the technical field of automobiles, in particular to a connecting assembly and an automobile. The problem that in the prior art, due to automobile collision, the connecting position of a fastening bolt and an automobile body bottom plate is cut off too quickly, and the crushing degree of an auxiliary frame and the crushing degree of the front section of an automobile body are inconsistent is solved. Therefore, the utility model provides a connecting assembly, which comprises a threaded pipe sleeve, a first connecting piece, a second connecting piece, a connecting piece and a second connecting piece, and is characterized in that the threaded pipe sleeve comprises a threaded section embedded in a first connecting object and a guide section extending out of the first connecting object; the connecting pipe sleeve is arranged on the second connecting object and comprises a first pipe section and a second pipe section which are connected with each other, and the first pipe section can be arranged on the guide section in a sleeving mode; the fastening bolt can penetrate through the second pipe section and the guide section and is connected with the threaded pipe sleeve and the connecting pipe sleeve; the inner diameter of the first pipe section is larger than the outer diameter of the guide section, and the inner diameter of the second pipe section is larger than the outer diameter of the fastening bolt. According to the utility model, the fastening bolt can be prevented from being quickly sheared off during automobile collision, and the collision safety of the automobile can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, and specifically provides a connecting component and an automobile. Background Art

[0002] At present, a car generally includes a body and a subframe, and the subframe is mounted on the body floor through a connecting assembly. In the related art, the connecting assembly includes a threaded sleeve completely embedded in the body floor, a connecting sleeve arranged on the subframe, and a fastening bolt, and the fastening bolt passes through the connecting sleeve and the threaded sleeve to realize a fixed connection between the subframe and the body.

[0003] However, in small and micro-sized vehicles or vehicles with high subframe rigidity requirements, the subframe is too short or too rigid to effectively cooperate with the collision safety collapse when the car collides. The collision load generated by the car collision will cause the connection between the fastening bolts and the body floor to be sheared off too quickly, resulting in inconsistent crushing degrees between the subframe and the front section of the body, which may cause body intrusion damage or battery damage, causing unnecessary losses or dangers.

[0004] Accordingly, the art requires a connection component and a vehicle to solve the above technical problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, that is, to solve the problem in the prior art that the collision load generated by the collision of the car causes the connection between the fastening bolts and the bottom plate of the vehicle body to be sheared off too quickly, resulting in inconsistent crushing degrees between the subframe and the front section of the vehicle body.

[0006] In a first aspect, the utility model provides a connection component for connecting a first connection object and a second connection object, the connection component comprising: a threaded sleeve, which comprises a threaded section embedded in the first connection object and a guide section extending out of the first connection object; a connecting sleeve, arranged on the second connection object, the connecting sleeve comprising a first pipe section and a second pipe section connected to each other, the first pipe section being capable of being sleeved on the guide section; and a fastening bolt, capable of passing through the second pipe section and the guide section and being screwed into the threaded section to connect the threaded sleeve and the connecting sleeve; wherein the inner diameter of the first pipe section is greater than the outer diameter of the guide section, and the inner diameter of the second pipe section is greater than the outer diameter of the fastening bolt.

[0007] In an optional technical solution of the above-mentioned connecting assembly, the connecting sleeve includes a first end face and a second end face that are relatively arranged, and the first end face is arranged close to the first pipe section; the fastening bolt includes a bolt head; wherein, when the connecting assembly is installed, the first end face abuts against the first connecting object, and the second end face abuts against the bolt head.

[0008] In an optional technical solution of the above-mentioned connecting assembly, the inner wall surface of the threaded section is provided with threads; and / or the interior of the guide section is structured with a first avoidance channel, and the first avoidance channel is provided with a guide slope at one end close to the threaded section.

[0009] In an optional technical solution of the above-mentioned connection assembly, a flange flange is provided at the connection between the threaded section and the guide section, and the flange flange is used for fixed connection with the first connection object.

[0010] In an optional technical solution of the above-mentioned connection assembly, the flange flange is in contact with the first connection object, and the flange flange and the first connection object are fixedly connected by welding.

[0011] In an optional technical solution of the above connection assembly, the edge of the flange is welded to the first connection object by arc welding, and an arc weld pile is formed at the edge of the flange.

[0012] In a second aspect, the utility model provides a car, comprising: a body, including a body floor; a subframe; and the above-mentioned connection assembly, wherein the first connection object is the body floor, and the second connection object is the subframe.

[0013] In an optional technical solution of the above automobile, the vehicle body floor is provided with a mounting hole, wherein the threaded section is provided on the upper side of the vehicle body floor, and the guide section passes through the mounting hole and is located on the lower side of the vehicle body floor.

[0014] In an optional technical solution of the above automobile, the vehicle body further includes a reinforcing plate, the threaded section passes through the reinforcing plate, and the threaded section is connected to the reinforcing plate by welding.

[0015] In an optional technical solution of the above automobile, the flange is arranged on a side of the vehicle body bottom plate close to the vehicle body.

[0016] In the utility model, the first connection object is the body of the automobile, and the second connection object is the subframe of the automobile. The utility model improves the structure of the threaded sleeve so that the guide section of the threaded sleeve extends out of the first connection object and cooperates with the connecting sleeve arranged on the subframe to form a mosaic structure with a gap. Through the design of the gap and the guide section, when the car collides, the collision load will first cause the connecting sleeve to hit the threaded sleeve, rather than directly acting on the fastening bolt. By shearing the threaded sleeve with the connecting sleeve, the time for the collision load to be transmitted to the fastening bolt can be delayed, thereby preventing the fastening bolt from being sheared off too quickly when the car collides. In this way, it is beneficial to improve the consistency of the degree of crushing between the subframe and the front section of the car body, and improve the collision safety of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of the threaded pipe sleeve provided by the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the medium threaded pipe sleeve;

[0020] Figure 3 It is a structural schematic diagram of the connection assembly provided by the utility model;

[0021] Figure 4 yes Figure 3 A schematic diagram of the cross-sectional structure of the connecting component;

[0022] Figure 5 It is a schematic diagram of the installation of the threaded pipe sleeve provided by the utility model.

[0023] Reference numerals:

[0024] 100, threaded sleeve; 101, threaded section; 102, guide section; 103, first avoidance channel; 104, guide slope; 105, flange; 106, arc welding molten pool; 200, connecting sleeve; 201, first pipe section; 202, second pipe section; 300, fastening bolt; 301, bolt head; 400, reinforcement plate. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios. Such changes in the application scenarios do not deviate from the basic principles of the present invention and belong to the scope of protection of the present invention.

[0026] In the embodiments of the present utility model, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present utility model and its embodiments, and are not intended to limit the indicated devices, elements or components to have specific directions, or to be constructed and operated in specific directions. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to the specific circumstances.

[0027] It should be noted that, in the description of the preferred embodiment, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, it can also be a connection between two components, and these cannot be understood as limitations on the present invention. In addition, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0028] In a first aspect, the utility model provides a connection assembly.

[0029] Figure 1 It is a structural schematic diagram of the threaded pipe sleeve provided by the utility model. Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the medium threaded pipe sleeve. Figure 3 It is a structural schematic diagram of the connection assembly provided by the utility model. Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the connecting components. Figures 1 to 4 As shown, the connection assembly provided by the utility model includes a threaded pipe sleeve 100, a connecting pipe sleeve 200 and a fastening bolt 300.

[0030] The threaded sleeve 100 includes a threaded section 101 embedded in the first connection object and a guide section 102 extending from the first connection object. Taking the first connection object as a vehicle body as an example, the threaded section 101 is located inside the vehicle body, and the guide section 102 extends to the outside of the vehicle body.

[0031] The connecting sleeve 200 is disposed on the second connection object. The connecting sleeve 200 includes a first pipe section 201 and a second pipe section 202 connected to each other. The first pipe section 201 can be sleeved on the guide section 102 .

[0032] The fastening bolt 300 can pass through the second pipe section 202 and the guide section 102, and be screwed into the threaded section 101 to connect the threaded sleeve 100 and the connecting sleeve 200. By connecting the threaded sleeve 100 and the connecting sleeve 200, the first connection object and the second connection object can be connected.

[0033] The inner diameter of the first pipe section 201 is larger than the outer diameter of the guide section 102, and the inner diameter of the second pipe section 202 is larger than the outer diameter of the fastening bolt 300. Thus, there are gaps between the connecting sleeve 200 and the first pipe section 201 and between the connecting sleeve and the fastening bolt 300.

[0034] The first connection object is the body of the car, and the second connection object is the subframe of the car. The utility model improves the structure of the threaded sleeve 100 so that the guide section of the threaded sleeve 100 extends out of the first connection object and cooperates with the connecting sleeve 200 set on the subframe to form a chimeric structure with a gap. Through the design of the gap and the guide section, when the car collides, the collision load will first cause the connecting sleeve 200 to hit the threaded sleeve 100, rather than directly acting on the fastening bolt 300. By shearing the threaded sleeve 100 with the connecting sleeve 200, the time for the collision load to be transmitted to the fastening bolt 300 can be delayed, thereby preventing the fastening bolt 300 from being cut off too quickly when the car collides. In this way, it is beneficial to improve the consistency of the degree of crushing between the subframe and the front section of the car body, and improve the collision safety of the car.

[0035] Furthermore, the threaded sleeve in the related art is completely embedded in the vehicle body, and the threaded sleeve in the related art does not include the guide section 102. The subframe has high rigidity and fast force transmission. When subjected to a collision load, the connection sleeve 200 disposed on the subframe and the vehicle body will produce an instantaneous displacement at the fitting point, that is, Figure 4 This will create a shear force on the fastening bolts, causing them to shear off quickly.

[0036] In the present invention, the threaded sleeve 100 is newly provided with a guide section 102 extending downwardly from the vehicle body, and the guide section 102 forms a reasonable clearance fit with the connecting sleeve 200. Therefore, when subjected to a collision load, an instantaneous displacement occurs between the connecting sleeve 200 and the vehicle body. However, through the design of the clearance and the guide section, the guide section of the threaded sleeve 100 first contacts the connecting sleeve 200, preventing the connecting sleeve 200 from continuing to slide, i.e. Figure 4 The shear point B in the figure relies on the connecting sleeve to shear the threaded sleeve, which can delay the time for the collision load to be transmitted to the fastening bolt 300, thereby avoiding the fastening bolt from being sheared off too quickly.

[0037] In some embodiments, the connecting sleeve 200 includes a first end face and a second end face that are arranged opposite to each other, and the first end face is arranged close to the first pipe section 201. The fastening bolt 300 includes a bolt head 301. When the connecting assembly is installed, the first end face abuts against the first connecting object, and the second end face abuts against the bolt head 301. By making the first end face abut against the first connecting object, and the second end face abut against the bolt head 301, the supporting force and friction force required for installation can be ensured.

[0038] In some embodiments, threads are provided on the inner wall surface of the threaded section 101. The threads on the inner wall surface of the threaded section 101 are engaged with the fastening bolt 300 through threads, which can ensure the torque required for installation and ensure the reliability of installation.

[0039] In some embodiments, in combination Figure 2As shown, the guide section 102 has a first avoidance channel 103 in its internal structure, and a guide slope 104 is provided at one end of the first avoidance channel 103 close to the threaded section 101. The diameter of the guide slope 104 decreases along the direction from the guide section 102 to the threaded section 101, which is conducive to the smooth insertion of the fastening bolt 300 into the threaded section 101.

[0040] In some embodiments, in combination Figure 1 and Figure 2 As shown, a flange 105 is provided at the connection between the threaded section 101 and the guide section 102, and the flange 105 is used to be fixedly connected to the first connection object. In other words, the threaded sleeve 100 includes the threaded section 101, the flange 105 and the guide section 102 connected in sequence. By providing the flange, it is convenient to fix the threaded sleeve 100 to the first connection object.

[0041] In some embodiments, the flange 105 contacts the first connection object, and the flange 105 and the first connection object are fixedly connected by welding. It can be understood that the flange 105 is perpendicular to the extension direction of the threaded section 101, and the flange 105 contacts the first connection object, which can ensure the verticality of the threaded sleeve 100 assembly. The flange 105 and the first connection object are fixedly connected by welding, which can ensure the strength of the connection.

[0042] Figure 5 is a schematic diagram of the installation of the threaded pipe sleeve provided by the utility model. In some embodiments, combined with Figure 5 As shown, the edge of the flange 105 is welded to the first connection object by arc welding, and an arc weld pile 106 is formed at the edge of the flange 105 .

[0043] Arc welding the edge of the flange 105 to the first connection object not only ensures that the flange 105 is attached to the first connection object and the verticality of the threaded sleeve 100 is ensured, but also provides good dynamic stiffness and connection strength for the connection point.

[0044] In a second aspect, the utility model provides a car.

[0045] The automobile provided by the utility model comprises a vehicle body, a subframe and the above-mentioned connection assembly. The vehicle body comprises a vehicle body bottom plate. The threaded sleeve of the connection assembly is arranged on the vehicle body bottom plate, and the connecting sleeve of the connection assembly is arranged on the subframe. It can be understood that the threaded section 101 of the threaded sleeve 100 is located above the vehicle body bottom plate, and the guide section 102 extends downward from the vehicle body bottom plate.

[0046] When the above technical solution is adopted, when the automobile provided by the utility model collides, an instantaneous displacement occurs between the connecting sleeve 200 and the vehicle body, and the collision load first causes the connecting sleeve to hit the threaded sleeve, rather than directly acting on the fastening bolt. By shearing the threaded sleeve with the connecting sleeve, the time for the collision load to be transmitted to the fastening bolt can be delayed, thereby preventing the fastening bolt from being sheared off too quickly when the automobile collides. In this way, it is beneficial to improve the consistency of the degree of crushing between the subframe and the front section of the vehicle body, and improve the collision safety of the automobile.

[0047] In some embodiments, the vehicle body bottom plate is provided with a mounting hole, wherein the threaded section 101 is provided on the upper side of the vehicle body bottom plate, and the guide section 102 passes through the mounting hole and is located on the lower side of the vehicle body bottom plate, so as to facilitate the installation of the threaded sleeve 100 .

[0048] In some embodiments, the vehicle body further includes a reinforcing plate 400, the threaded section 101 passes through the reinforcing plate 400, and the threaded section 101 is connected to the reinforcing plate by welding. This arrangement can further improve the connection strength and reliability between the threaded sleeve 100 and the vehicle body.

[0049] In some embodiments, a flange 105 is provided at the connection between the threaded section 101 and the guide section 102, and the flange 105 is provided on the side of the vehicle body bottom plate close to the vehicle body. The subframe is installed on the bottom of the vehicle body through the threaded sleeve 100. By arranging the flange 105 on the side of the vehicle body bottom plate close to the vehicle body, the flange 105 presses the vehicle body bottom plate under the action of gravity, thereby reducing the possibility of the threaded sleeve falling off.

[0050] It can be understood that the diameter of the flange 105 is larger than the diameters of the threaded section 101 and the guide section 102 , and smaller than the diameter of the mounting hole.

[0051] So far, the technical solution of the utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

Claims

1. A connection component, used to connect a first connection object and a second connection object, characterized in that: The connection component comprises: A threaded sleeve, comprising a threaded section embedded in the first connection object and a guide section extending out of the first connection object; a connecting sleeve, arranged on the second connection object, the connecting sleeve comprising a first pipe section and a second pipe section connected to each other, the first pipe section being capable of being sleeved on the guide section; and, A fastening bolt, capable of passing through the second pipe section and the guide section and being screwed into the threaded section to connect the threaded sleeve and the connecting sleeve; The inner diameter of the first pipe section is larger than the outer diameter of the guide section, and the inner diameter of the second pipe section is larger than the outer diameter of the fastening bolt.

2. The connection assembly according to claim 1, characterized in that: The connecting sleeve comprises a first end face and a second end face which are arranged opposite to each other, and the first end face is arranged close to the first pipe section; the fastening bolt comprises a bolt head; Wherein, when the connection assembly is installed, the first end face abuts against the first connection object, and the second end face abuts against the bolt head.

3. The connection assembly according to claim 1, characterized in that: The inner wall surface of the threaded section is provided with threads; and / or, The guide section has a first avoidance channel in its interior structure, and one end of the first avoidance channel close to the threaded section is provided with a guide slope.

4. The connection assembly according to any one of claims 1 to 3, characterized in that: A flange is provided at the connection between the threaded section and the guide section, and the flange is used for fixed connection with the first connection object.

5. The connection assembly according to claim 4, characterized in that: The flange flange contacts the first connection object, and the flange flange and the first connection object are fixedly connected by welding.

6. The connection assembly according to claim 4, characterized in that: The edge of the flange is welded to the first connection object by arc welding, and an arc weld pile is formed at the edge of the flange.

7. A car, characterized in that: The automobile comprises: body, including underbody; subframe; and, The connection assembly according to any one of claims 4 to 6, wherein the first connection object is the vehicle body floor panel, and the second connection object is the subframe.

8. The automobile according to claim 7, characterized in that: The vehicle body bottom plate is provided with a mounting hole, wherein the threaded section is provided on the upper side of the vehicle body bottom plate, and the guide section passes through the mounting hole and is located on the lower side of the vehicle body bottom plate.

9. The automobile according to claim 7 or 8, characterized in that: The vehicle body further includes a reinforcing plate, the threaded section passes through the reinforcing plate, and the threaded section is connected to the reinforcing plate by welding.

10. The automobile according to claim 7 or 8, characterized in that: The flange is arranged on a side of the vehicle body bottom plate close to the vehicle body.

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