A limiting mechanism and vehicle

Abstract

The utility model relates to a kind of limiting mechanism and vehicle, wherein, limiting mechanism is used to limit target equipment, including fixed part, first limiting part and second limiting part, fixed part is provided with fixed part, along the height direction of target equipment, fixed part is between the top end and the bottom end of target equipment, one end of first limiting part and one end of second limiting part are connected on fixed part, the other end of first limiting part is connected in the top end of target equipment, the other end of second limiting part is connected in the bottom end of target equipment.The height of the first limiting part and the second limiting part of the utility model is less than the height of battery, when the direction of force that battery bears is perpendicular to battery height direction, the bending resistance of shorter first limiting part and second limiting part is stronger, and the reliability is higher, reduce the sway of battery, improve the connection stability to battery, and further improve the safety protection performance of limiting mechanism to battery.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a limiting mechanism and a vehicle. Background Technology

[0002] The battery is a crucial component of a vehicle. It powers the electric motor, which in turn drives the engine crankshaft to ignite and start the engine. Therefore, the reliability of the battery directly impacts the vehicle's normal operation. In battery limiting mechanisms, a fixing rod is often used to limit the battery's height. This fixing rod covers the entire height of the battery. During vehicle start-up or braking, the fixing rod bears the force. Because the fixing rod has a long lever arm, it is prone to deformation, leading to poor battery connection stability. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a limiting mechanism and a vehicle that can improve the connection stability of the battery.

[0004] On one hand, this utility model provides a limiting mechanism for limiting a target device, including a fixing member, a first limiting member, and a second limiting member. The fixing member is provided with a fixing part, which is located between the top and bottom of the target device along the height direction of the target device. One end of the first limiting member and one end of the second limiting member are both connected to the fixing part. The other end of the first limiting member is connected to the top of the target device, and the other end of the second limiting member is connected to the bottom of the target device.

[0005] In one embodiment of the present invention, the first limiting member includes a first connecting member and a second connecting member connected together. The top end of the first connecting member is connected to the top end of the target device, and the end of the second connecting member away from the first connecting member is connected to the fixing part.

[0006] In one embodiment of this utility model, the end of the second connector away from the fixing part is bent toward the bottom end of the target device, and the end of the first connector away from the top end of the target device is connected to the end of the second connector away from the fixing part.

[0007] In one embodiment of the present invention, a first snap-fit ​​portion is provided at one end of the second connector away from the fixing portion, and a second snap-fit ​​portion is provided at one end of the first connector away from the top of the target device, and the first snap-fit ​​portion and the second snap-fit ​​portion are snapped together.

[0008] In one embodiment of the present invention, the second limiting member includes a top wall, a side wall and a bottom wall arranged in sequence, the top wall being connected to the fixing part and the bottom wall being connected to the bottom end of the target device.

[0009] In one embodiment of the present invention, a mounting groove is formed between the side wall and the bottom wall, and the target device is disposed in the mounting groove.

[0010] In one embodiment of the present invention, the limiting mechanism further includes a connecting limiting member. The first limiting member is disposed on both sides of the target device in the width direction. One end of the connecting limiting member is connected to the first limiting member on one side of the target device, and the other end of the connecting limiting member is connected to the first limiting member on the other side of the target device.

[0011] In one embodiment of the present invention, the limiting mechanism further includes an auxiliary limiting member, which is connected to the connecting limiting member. The auxiliary limiting member is provided with a first limiting surface, a second limiting surface, and a third limiting surface. The two sides of the target device in the width direction abut against the first limiting surface and the second limiting surface, respectively, and the two sides of the target device in the height direction abut against the third limiting surface and the bottom wall, respectively.

[0012] In one embodiment of the present invention, a first limiting part and a second limiting part are formed at the intersection of the side wall and the bottom wall along the length direction of the target device, and the two sides of the target device along the length direction respectively abut against the first limiting part and the second limiting part.

[0013] On the other hand, a vehicle is provided that includes the limiting mechanism.

[0014] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0015] The height of the first and second limiting members in this application is smaller than the height of the battery. When the vehicle starts or brakes, the shorter first and second limiting members have stronger bending resistance and higher reliability, which reduces the shaking of the battery when the vehicle starts or brakes, improves the connection stability of the battery, and thus improves the safety protection performance of the limiting mechanism for the battery. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of the first structure of the limiting mechanism (setting target device) of this utility model;

[0018] Figure 2 This is a cross-sectional view of the second structure of the limiting mechanism (setting target device) of this utility model;

[0019] Figure 3 This is a cross-sectional view of the third structure of the limiting mechanism (setting target device) of this utility model;

[0020] Figure 4 This is a top view of the third structure of the limiting mechanism (setting target device) of this utility model;

[0021] Figure 5 This is a cross-sectional view of the third structure of the limiting mechanism (without a target device) of this utility model;

[0022] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle;

[0023] Figure 7 This is a perspective view of the third structure of the limiting mechanism (without a target device) of this utility model;

[0024] Figure 8 This is an exploded view of the third structure of the limiting mechanism (without a target device) of this utility model;

[0025] Figure 9 This is a schematic diagram of the structure of the second connecting member of the limiting mechanism of this utility model;

[0026] Figure 10 This is a schematic diagram of the first structure of the limiting mechanism and the longitudinal beam of this utility model;

[0027] Figure 11 This is an exploded structural diagram of the limiting mechanism and longitudinal beam of this utility model;

[0028] Figure 12 This is a schematic diagram of the second structure of the limiting mechanism and the longitudinal beam of this utility model.

[0029] Explanation of reference numerals in the instruction manual:

[0030] 1. Fixing component; 2. First limiting component; 3. Second limiting component; 4. Fixing part; 5. First connecting component; 6. Second connecting component; 7. Top wall; 8. Side wall; 9. Bottom wall; 10. Mounting groove; 11. Second horizontal plate; 12. Second vertical plate; 13. Connecting limiting component; 14. Auxiliary limiting component; 15. First limiting surface; 16. Second limiting surface; 17. Third limiting surface; 18. First limiting part; 19. Second limiting part; 20. Third limiting component; 21. Fourth limiting component; 22. First longitudinal beam; 23. 24. Second longitudinal beam; 25. Third connector; 26. Fourth connector; 27. Middle crossbeam; 28. Sub-connector; 29. ​​Target equipment; 20. First snap-fit ​​part; 31. Second snap-fit ​​part; 32. Mounting hole; 33. First connecting plate; 34. Second connecting plate; 35. Connecting protrusion; 36. Reinforcing rib; 37. Welding edge; 38. Reinforcing protrusion; 39. Collapse guide rib; 40. Collapse hole; 41. Auxiliary positioning protrusion; 42. Groove; 43. Discharge port; 44. First horizontal plate; 45. First vertical plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] Example 1

[0033] The front-back direction shown in the accompanying drawings of this application represents the width of the battery, the left-right direction represents the length of the battery, and the up-down direction represents the height of the battery.

[0034] The limiting mechanism of this utility model is used to limit the target device 28. It includes a fixing member 1, a first limiting member 2, and a second limiting member 3. The fixing member 1 is provided with a fixing part 4. Along the height direction of the target device 28, the fixing part 4 is located between the top and bottom of the target device 28. One end of the first limiting member 2 and one end of the second limiting member 3 are both connected to the fixing part 4. The other end of the first limiting member 2 is connected to the top of the target device 28, and the other end of the second limiting member 3 is connected to the bottom of the target device 28.

[0035] The limiting mechanism of this application limits the height of the target device 28 by using a segmented first limiting member 2 and a second limiting member 3, thereby improving the connection stability of the limiting mechanism to the target device 28. The target device 28 is a battery; that is, this application uses the limiting mechanism to limit the battery on a vehicle. Specifically, as... Figure 1 , Figure 2 and Figure 3 As shown, this application employs a segmented design for the battery height-directing limiting mechanism. Specifically, the mechanism for height-directing the battery is divided into a first limiting member 2 and a second limiting member 3 along the battery's height direction. The fixing member 1 is a component on the vehicle, such as the rear floor. The fixing member 1 has a fixing part 4, which fixes the first limiting member 2 and the second limiting member 3, thereby limiting the battery height. Further, as... Figure 1 , Figure 2 and Figure 3 As shown, the fixing part 4 is disposed between the top and bottom ends of the battery. Preferably, the fixing part 4 is disposed in the middle position between the top and bottom ends of the battery. One end of the first limiting member 2 is connected to the fixing part 4, and the other end of the first limiting member 2 is connected to the top end of the battery. One end of the second limiting member 3 is connected to the fixing part 4, and the other end of the second limiting member 3 is connected to the bottom end of the battery. Therefore, the battery is limited in the height direction by the cooperation of the segmented first limiting member 2 and the second limiting member 3.

[0036] Since the fixing part 4 is located between the top and bottom of the battery, the height of the first limiting member 2 and the second limiting member 3 of this application are both smaller than the height of the battery compared to the fixing rod that covers the entire height of the battery (the height of the fixing rod in the prior art is greater than the height of the battery). When the vehicle starts or brakes, the shorter first limiting member 2 and the second limiting member 3 have stronger bending resistance and higher reliability, reducing the shaking of the battery when the vehicle starts or brakes, improving the connection stability of the battery, and thus improving the safety protection performance of the limiting mechanism for the battery.

[0037] In one embodiment, the first limiting member 2 includes a first connecting member 5 and a second connecting member 6 connected together. The top end of the first connecting member 5 is connected to the top end of the target device 28, and the end of the second connecting member 6 away from the first connecting member 5 is connected to the fixing part 4.

[0038] The first limiting member 2 of this application includes a first connecting member 5 and a second connecting member 6, which cooperate to limit the position of the battery. Specifically, as shown... Figure 1 , Figure 2 and Figure 3As shown, one end of the first connecting member 5 is connected to one end of the second connecting member 6. The end of the first connecting member 5 away from the second connecting member 6 is connected to the top of the battery, and the end of the second connecting member 6 away from the first connecting member 5 is connected to the fixing part 4. Therefore, the fixing part 4 limits the second connecting member 6, the second connecting member 6 limits the first connecting member 5, and the first connecting member 5 limits the top of the battery. The bottom of the second limiting member 3 is provided with a reinforcing rib 35 to enhance its strength.

[0039] In one embodiment, the end of the second connector 6 away from the fixing part 4 is bent toward the bottom end of the target device 28, and the end of the first connector 5 away from the top end of the target device 28 is connected to the end of the second connector 6 away from the fixing part 4.

[0040] This application improves the connection stability to the battery by using a second connector 6 that bends towards the bottom of the battery. Specifically, as shown... Figure 3 and Figure 5 As shown, one end of the second connector 6 is connected to the fixing part 4, and the other end of the second connector 6 is bent towards the bottom of the battery. Therefore, when the battery is subjected to an upward force, because the second connector 6 is bent towards the bottom of the battery, when the battery drives the first connector 5 to pull the second connector 6 upward, the second connector 6 is subjected to pressure. At this time, the second connector 6 is relatively... Figure 1 and Figure 2 The second connector 6 shown (when the battery drives the first connector 5 to pull the second connector 6 upward, Figure 1 and Figure 2 The second connector 6 (which is subjected to tensile force) has strong bending resistance, which can improve the connection stability of the first connector 5 and the second connector 6 to the battery, thereby improving the safety protection performance of the battery.

[0041] In one embodiment, a first snap-fit ​​portion 29 is provided at one end of the second connector 6 away from the fixing portion 4, and a second snap-fit ​​portion 30 is provided at one end of the first connector 5 away from the top of the target device 28, and the first snap-fit ​​portion 29 and the second snap-fit ​​portion 30 are snapped together.

[0042] This application achieves a quick connection between the first connector 5 and the second connector 6 through the snap-fitting of the first snap-fit ​​portion 29 and the second snap-fit ​​portion 30. Specifically, as shown... Figure 8 and Figure 9As shown, one end of the second connector 6 is connected to the fixing part 4, and the other end of the second connector 6 is provided with a first snap-fit ​​part 29, which is a snap-fit ​​hole; one end of the first connector 5 is connected to the top of the target device 28, and the other end of the first connector 5 is provided with a second snap-fit ​​part 30, which is a snap-fit ​​hook; when it is necessary to connect the first connector 5 and the second connector 6, the snap-fit ​​hook on the first connector 5 snaps into the snap-fit ​​hole on the second connector 6, as shown. Figure 3 As shown, this design enables a quick connection between the first connector 5 and the second connector 6, simplifying the assembly process and improving assembly efficiency. The first connector 5 is in the shape of a pull rod; as shown... Figure 9 As shown, the second connector 6 includes a first connecting plate 32, a second connecting plate 33, and a connecting protrusion 34 connected to each other. The first connecting plate 32 is connected to the top wall 7, and the second connecting plate 33 is connected to the side wall 8. The first snap-fit ​​part 29 is provided on the connecting protrusion 34. When the vehicle starts or brakes, the plate-shaped second connector 6 improves the deformation resistance and can withstand the forces in the front-back, left-right, and up-down directions.

[0043] In one embodiment, the second limiting member 3 includes a top wall 7, a side wall 8 and a bottom wall 9 arranged sequentially. The top wall 7 is connected to the fixing part 4, and the bottom wall 9 is connected to the bottom end of the target device 28.

[0044] This application achieves the limitation of the bottom end of the battery through the second limiting member 3. Specifically, as shown... Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, the second limiting member 3 comprises three parts: a top wall 7, a side wall 8, and a bottom wall 9, arranged sequentially from top to bottom. Specifically, the top wall 7 is located at the top of the side wall 8 and is connected to the fixing part 4; the bottom wall 9 is located at the bottom of the side wall 8 and is connected to the bottom end of the battery. The fixing part 4 fixes the top wall 7, the top wall 7 limits the side wall 8, the side wall 8 limits the bottom wall 9, and the bottom wall 9 limits the bottom end of the battery. Thus, the second limiting member 3 effectively limits the bottom end of the battery.

[0045] In one embodiment, a mounting groove 10 is formed between the side wall 8 and the bottom wall 9, and the target device 28 is disposed in the mounting groove 10.

[0046] This application achieves the limitation of the battery through the second limiting member 3. Specifically, as shown... Figure 7 and Figure 8As shown, the top wall 7, side wall 8, and bottom wall 9 of the second limiting member 3 are all arranged in a ring shape, that is, the top wall 7, side wall 8, and bottom wall 9 of the second limiting member 3 all form a circle around the battery. Furthermore, a mounting groove 10 is formed between the side wall 8 and the bottom wall 9, and the battery is directly placed in the mounting groove 10 to accommodate the battery. Therefore, the mounting groove 10 of this application is designed to be recessed in the second limiting member 3. This recessed battery design reduces the space occupied by the battery. When the battery is located on the side of the vehicle's trunk, the recessed design can expand the trunk's storage space and improve space utilization. The top wall 7, side wall 8, and bottom wall 9 of the second limiting member 3 are integrally formed.

[0047] In one embodiment, the limiting mechanism further includes a connecting limiting member 13, the first limiting member 2 is disposed on both sides of the target device 28 in the width direction, one end of the connecting limiting member 13 is connected to the first limiting member 2 on one side of the target device 28, and the other end of the connecting limiting member 13 is connected to the first limiting member 2 on the other side of the target device 28.

[0048] This application achieves battery positioning through the cooperation of a first limiting member 2, a second limiting member 3, and a connecting limiting member 13. Specifically, the first limiting member 2 is disposed on both sides in the width direction of the battery, such as... Figure 1 , Figure 2 and Figure 3 As shown, the top end of the first limiting member 2 on the left side of the battery is connected to the top end of the battery, and the bottom end of the second limiting member 3 on the left side of the battery is connected to the bottom end of the battery. The top end of the first limiting member 2 on the right side of the battery is connected to the top end of the battery, and the bottom end of the second limiting member 3 on the right side of the battery is connected to the bottom end of the battery. Furthermore, a connecting limiting member 13 is positioned between the top end of the first limiting member 2 on the left side of the battery and the top end of the first limiting member 2 on the right side of the battery. When the first limiting member 2, the second limiting member 3, and the connecting limiting member 13 are installed in place, the battery is stably fixed within the mounting groove 10 on the second limiting member 3 by the first limiting member 2, the second limiting member 3, and the connecting limiting member 13.

[0049] In one embodiment, the limiting mechanism further includes an auxiliary limiting member 14, which is connected to the connecting limiting member 13. The auxiliary limiting member 14 is provided with a first limiting surface 15, a second limiting surface 16 and a third limiting surface 17. The two sides of the target device 28 in the width direction abut against the first limiting surface 15 and the second limiting surface 16 respectively, and the two sides of the target device 28 in the height direction abut against the third limiting surface 17 and the bottom wall 9 respectively.

[0050] This application uses auxiliary limiting members 14 to limit the battery in the front-back and left-right directions. Specifically, the auxiliary limiting members 14 include the third limiting member 20 and the fourth limiting member 21, as follows: Figure 5 and Figure 6 As shown, the third limiting member 20 includes a first horizontal plate 43 and a first vertical plate 44, which are integrally formed. The first vertical plate 44 extends vertically, and the first horizontal plate 43 extends horizontally. A first limiting surface 15 is formed on the side of the first vertical plate 44 near the battery, and a third limiting surface 17 is formed on the bottom surface of the first horizontal plate 43. The fourth limiting member 21 includes a second horizontal plate 11 and a second vertical plate 12, which are integrally formed. The second vertical plate 12 extends vertically, and the second horizontal plate 11 extends horizontally. A first limiting surface 15 is formed on the side of the first vertical plate 44 near the battery, and a third limiting surface 17 is formed on the bottom surface of the first horizontal plate 43. A second limiting surface 16 is formed on the side near the battery, and a third limiting surface 17 is formed on the bottom surface of the second horizontal plate 11. Therefore, when the first limiting member 2, the second limiting member 3, and the connecting limiting member 13 are installed in place, the left and right sides of the battery abut against the first limiting surface 15 and the second limiting surface 16, respectively, to limit the battery in the left and right directions. The top and bottom surfaces of the battery abut against the third limiting surface 17 and the top surface of the bottom wall 9, respectively, to limit the battery in the height direction. The third limiting member 20 and the fourth limiting member 21 can be integrally formed, or the third limiting member 20 and the fourth limiting member 21 can be independently set on the connecting limiting member 13. Furthermore, the top wall 7 of the second limiting member 3 and the first connecting plate 32 of the second connecting member 6 are fixed on the fixing part 4. The installation process of the limiting mechanism of this application is simple. The battery is placed in the mounting groove 10, the bottom end of the first connecting member 5 is snapped onto the second connecting member 6, and the connecting limiting member 13 is connected to the top end of the first connecting member 5 by fasteners.

[0051] In one embodiment, a first limiting portion 18 and a second limiting portion 19 are formed at the intersection of the side wall 8 and the bottom wall 9 along the length direction of the target device 28, and the two sides of the target device 28 along the length direction respectively abut against the first limiting portion 18 and the second limiting portion 19.

[0052] This application limits the length of the battery through a first limiting part 18 and a second limiting part 19. Specifically, as shown... Figure 4 As shown, since the second limiting member 3 is an annular component with a mounting groove 10, the intersection of the bottom wall 9 and the side wall 8 of the second limiting member 3 forms a limiting part that limits the length of the battery. Furthermore, the intersection of the side wall 8 and the bottom wall 9 has a rounded corner structure (the intersection of the side wall 8 and the bottom wall 9 is rounded), as shown... Figure 4As shown, along the length of the battery, the intersection of the side wall 8 and the bottom wall 9 forms a first limiting part 18 and a second limiting part 19 with rounded corners. When the first limiting part 2, the second limiting part 3 and the connecting limiting part 13 are installed in place, the battery is located in the mounting groove 10, and the two bottom edges of the battery along its length abut against the first limiting part 18 and the second limiting part 19 respectively, so that the battery is limited along the length direction by the first limiting part 18 and the second limiting part 19, without the need to set other positioning structures, thus reducing costs.

[0053] In one embodiment, an auxiliary positioning protrusion 40 is provided on the top surface of the bottom wall 9.

[0054] This application improves the installation efficiency of the battery by using an auxiliary positioning protrusion 40. Specifically, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an auxiliary positioning protrusion 40 is formed by an upward protrusion on the top surface of the bottom wall 9. When the user installs the battery into the mounting slot 10, the user can visually position the battery close to the auxiliary positioning protrusion 40 by looking at it. The battery is pre-positioned by contact between the bottom end of the battery and the auxiliary positioning protrusion 40, thereby improving the battery installation efficiency.

[0055] In one embodiment, the bottom wall 9 is recessed downward to form a groove 41, and a discharge port 42 is provided in the middle of the groove 41.

[0056] This application improves the battery's safety during impacts through the recess 41 and the outlet 42. Specifically, as shown... Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the bottom wall 9 has a downward recess in the middle to form a groove 41, which extends along the length of the battery. When the vehicle is involved in a collision and the battery electrolyte leaks out, the electrolyte flows into the groove 41 and is discharged through the drain port 42, thereby improving the electrolyte discharge efficiency, reducing the discharge time, and enhancing safety performance. Furthermore, the groove 41 reduces the contact area between the bottom of the battery and the bottom wall 9, thus reducing abnormal noise. A reinforcing rib 35 is formed between the groove 41 and the bottom wall 9 to increase the strength of the second limiting member 3.

[0057] The limiting mechanism of this application achieves the limiting of the battery width direction through the first limiting surface 15 and the second limiting surface 16 of the auxiliary limiting member 14, the limiting of the battery height direction through the third limiting surface 17 of the auxiliary limiting member 14 and the bottom wall 9 of the second limiting member 3, and the limiting of the battery length direction through the first limiting part 18 and the second limiting part 19. In addition, the first limiting member 2, the second limiting member 3, the connecting limiting member 13 and the auxiliary limiting member 14 cooperate to form a closed structure to limit the battery on the second limiting member 3, thereby improving the strength of the overall structure.

[0058] Example 2

[0059] A vehicle includes a limiting mechanism, which includes a fixing member 1, a first limiting member 2, and a second limiting member 3. The fixing member 1 is provided with a fixing part 4. Along the height direction of the target device 28, the fixing part 4 is located between the top and bottom ends of the target device 28. One end of the first limiting member 2 and one end of the second limiting member 3 are both connected to the fixing part 4. The other end of the first limiting member 2 is connected to the top end of the target device 28, and the other end of the second limiting member 3 is connected to the bottom end of the target device 28.

[0060] The vehicle of this application includes a rear floor, the rear floor forming a fastener 1, or the fastener 1 is disposed on the rear floor. Preferably, the rear floor forms the fastener 1, such as... Figure 10 , Figure 11 and Figure 12 As shown; furthermore, a mounting hole 31 is provided in the middle of the rear floor, and the top wall 7 of the second limiting member 3 is fixed to the edge of the mounting hole 31. The battery is installed in the mounting groove 10 on the second limiting member 3. The height of the first limiting member 2 and the second limiting member 3 in this application is smaller than the height of the battery. When the vehicle starts or brakes, the shorter first limiting member 2 and the second limiting member 3 have stronger bending resistance and higher reliability, reducing the shaking of the battery when the vehicle starts or brakes, improving the connection stability of the battery, and thus improving the safety protection performance of the limiting mechanism for the battery.

[0061] In one embodiment, the vehicle includes a first longitudinal beam 22, a second longitudinal beam 23, a third connector 24, and a fourth connector 25. One side of the second limiting member 3 is connected to the first longitudinal beam 22 via the third connector 24, and the other side of the second limiting member 3 is connected to the second longitudinal beam 23 via the fourth connector 25.

[0062] The second limiting member 3 of this application is connected to the longitudinal beam of the vehicle to improve the connection stability of the second limiting member 3. Specifically, as shown... Figure 10 , Figure 11 and Figure 12As shown, the vehicle includes two longitudinal beams, namely, a first longitudinal beam 22 and a second longitudinal beam 23, with a second limiting member 3 disposed between the first longitudinal beam 22 and the second longitudinal beam 23. Furthermore, the vehicle also includes a third connecting member 24 and a fourth connecting member 25. The third connecting member 24 includes a middle crossbeam 26 and a sub-connecting member 27. One end of the middle crossbeam 26 is connected to one end of the second limiting member 3, and the other end of the middle crossbeam 26 is connected to the sub-connecting member 27. The end of the sub-connecting member 27 away from the middle crossbeam 26 is connected to the first longitudinal beam 22. One end of the fourth connecting member 25 is connected to the end of the second limiting member 3 away from the middle crossbeam 26, and the other end of the fourth connecting member 25 is connected to the second longitudinal beam 23. Therefore, the second limiting member 3 is connected between the first longitudinal beam 22 and the second longitudinal beam 23 through the third connecting member 24 and the fourth connecting member 25, improving the reliability of the second limiting member 3. The third connecting member 24 and the fourth connecting member 25 are both connected to the side wall 8 and bottom wall 9 of the second limiting member 3. The fourth connecting member 25 has a welding edge 36, which is welded together with the fixing member 1 and the top wall 7 of the second limiting member 3 in three layers to further improve the reliability of the second limiting member 3. Furthermore, the connection points on the middle crossbeam 26 with the side wall 8 and bottom wall 9 of the second limiting member 3 use surface contact to improve the force transmission path. Since the middle crossbeam 26 is a weak point, a reinforcing protrusion 37 is provided on it to increase the cross-sectional area of ​​the middle crossbeam 26 in the left-right and height directions, thereby improving the strength of the middle crossbeam 26, improving the force transmission path, dispersing the force, and effectively distributing the force generated during vehicle movement to all parts of the vehicle body, ensuring uniform stress distribution. In addition, the middle crossbeam 26 is also equipped with a crumple guide rib 38 and a crumple hole 39 to enable crumple during a collision, improving safety protection capabilities.

[0063] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A limiting mechanism for limiting a target device (28), characterized in that: It includes a fixing member (1), a first limiting member (2) and a second limiting member (3). The fixing member (1) is provided with a fixing part (4). Along the height direction of the target device (28), the fixing part (4) is located between the top and bottom of the target device (28). One end of the first limiting member (2) and one end of the second limiting member (3) are both connected to the fixing part (4). The other end of the first limiting member (2) is connected to the top of the target device (28), and the other end of the second limiting member (3) is connected to the bottom of the target device (28).

2. The limiting mechanism according to claim 1, characterized in that: The first limiting member (2) includes a first connecting member (5) and a second connecting member (6) connected together. The top end of the first connecting member (5) is connected to the top end of the target device (28), and the end of the second connecting member (6) away from the first connecting member (5) is connected to the fixing part (4).

3. The limiting mechanism according to claim 2, characterized in that: The end of the second connector (6) away from the fixing part (4) is bent toward the bottom end of the target device (28), and the end of the first connector (5) away from the top end of the target device (28) is connected to the end of the second connector (6) away from the fixing part (4).

4. The limiting mechanism according to claim 2, characterized in that: The second connector (6) has a first snap-fit ​​part (29) at one end away from the fixing part (4), and the first connector (5) has a second snap-fit ​​part (30) at one end away from the top of the target device (28). The first snap-fit ​​part (29) and the second snap-fit ​​part (30) are snapped together.

5. The limiting mechanism according to claim 1, characterized in that: The second limiting member (3) includes a top wall (7), a side wall (8) and a bottom wall (9) arranged in sequence. The top wall (7) is connected to the fixing part (4), and the bottom wall (9) is connected to the bottom end of the target device (28).

6. The limiting mechanism according to claim 5, characterized in that: An installation groove (10) is formed between the side wall (8) and the bottom wall (9), and the target device (28) is disposed in the installation groove (10).

7. The limiting mechanism according to claim 6, characterized in that: The limiting mechanism further includes a connecting limiting member (13), the first limiting member (2) is disposed on both sides of the target device (28) in the width direction, one end of the connecting limiting member (13) is connected to the first limiting member (2) on one side of the target device (28), and the other end of the connecting limiting member (13) is connected to the first limiting member (2) on the other side of the target device (28).

8. The limiting mechanism according to claim 7, characterized in that: The limiting mechanism further includes an auxiliary limiting component (14), which is connected to the connecting limiting component (13). The auxiliary limiting component (14) is provided with a first limiting surface (15), a second limiting surface (16), and a third limiting surface (17). The two sides of the target device (28) in the width direction abut against the first limiting surface (15) and the second limiting surface (16) respectively, and the two sides of the target device (28) in the height direction abut against the third limiting surface (17) and the bottom wall (9) respectively.

9. The limiting mechanism according to claim 5, characterized in that: Along the length direction of the target device (28), a first limiting part (18) and a second limiting part (19) are formed at the intersection of the side wall (8) and the bottom wall (9), and the two sides of the target device (28) along the length direction respectively abut against the first limiting part (18) and the second limiting part (19).

10. A vehicle, characterized in that: Includes the limiting mechanism as described in any one of claims 1-9.

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