An anti-collision structure for the chassis

Abstract

The present invention provides an anti-collision structure for a chassis, which relates to the field of automobile chassis protection and includes a connecting seat rotatably connected inside a protection plate. It solves the problem that the protection plate of the existing automobile is directly fastened to the chassis skeleton by bolts without any locking and anti-loosening structure, and the bolts are easily loosened due to the vibration during the driving of the automobile, resulting in the protection plate falling off and tearing, losing the protection effect. The installation and disassembly mechanism can install the protection plate at the bottom of the chassis skeleton, so as to play an anti-collision protection role for the battery or other components inside the chassis skeleton. At the same time, under the action of the locking mechanism, when the installation and disassembly mechanism is installed, it can be automatically locked and cannot rotate in the loosening direction, thus avoiding the phenomenon that the installation and disassembly mechanism loosens due to the vibration of the chassis skeleton during driving, and can stably fix the protection plate at the bottom of the chassis skeleton for use and protection.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive chassis protection, and particularly to an anti-collision structure for the chassis. Background Art

[0002] New energy vehicles are automobiles with advanced technical principles, new technologies, and new structures. Currently, as an important component of new energy vehicles, the battery is generally installed inside the chassis of the vehicle, and a protective plate is installed at the bottom of the vehicle chassis to buffer and prevent the battery part from being damaged or causing a safety accident due to being hit by foreign objects. The chassis protective plate is one of the most commonly used and effective chassis protection structures.

[0003] However, for the protective plates of existing new energy vehicles at present, they are directly fastened to the chassis skeleton by bolts without any locking and anti-loosening structures. The vibrations on the chassis during the driving process of the vehicle are relatively frequent, so it is very easy to have the problem that the bolts become loose, resulting in the protective plate falling off and tearing, losing the protective effect, with poor stability and low practicality. Summary of the Invention

[0004] In view of this, the present invention provides an anti-collision structure for the chassis, which has a connection component. The installation and disassembly mechanism can install the protective plate at the bottom of the chassis skeleton, thereby playing a role in protecting the battery or other components inside the chassis skeleton from being hit. At the same time, under the action of the locking mechanism, when the installation and disassembly mechanism is installed, it can be automatically locked and unable to rotate in the loosening direction, thus avoiding the phenomenon that the installation and disassembly mechanism becomes loose due to the vibration of the chassis skeleton during driving. The protective plate can be stably fixed at the bottom of the chassis skeleton for use. At the same time, the installation and disassembly mechanism is not non-removable. Through manual operation, the locking relationship between the locking mechanism and the installation and disassembly mechanism can also be released, so as to remove the installation and disassembly mechanism and the protective plate to achieve operations such as vehicle maintenance and repair. After the operations such as vehicle maintenance and repair are completed, the protective plate can still be installed and fixed at the bottom of the chassis skeleton through the installation and disassembly mechanism, reducing the use cost, and having extremely strong flexibility, stability, and practicality.

[0005] The present invention provides an anti-collision structure for a chassis, which specifically includes: a chassis assembly, the chassis assembly includes a chassis skeleton and a protective plate, the protective plate is installed at the bottom of the chassis skeleton through a connection assembly, and the connection assembly is composed of a disassembly and assembly mechanism and a locking mechanism; the disassembly and assembly mechanism includes a connection seat and a locking bolt, the connection seat is rotatably connected inside the protective plate, and the top of the locking bolt is threadedly screwed inside the chassis assembly through a rod; the locking mechanism includes a mounting seat, a control disc, an unlocking cylinder, a track seat and a locking block, the top of the mounting seat is fixedly connected to the bottom of the chassis skeleton, and the control disc is rotatably connected to the outside of the mounting seat, the unlocking cylinder is inserted into the outside of the mounting seat, and the track seat is inserted into the inside of the mounting seat, the locking block is inserted into the inside of the track seat, the rod of the locking bolt passes through the inside of the connection seat and the mounting seat, and the connection seat is inserted into the bottom of the mounting seat.

[0006] Further, a synchronous groove is provided on the outer side of the rod of the locking bolt, and a synchronous block is provided on the outer side of the connection seat, and the synchronous block is inserted into the synchronous groove.

[0007] Further, the bottom of the locking block is designed with an inclined chamfer, and the cross-sectional shape of the top seat body of the connection seat is trapezoidal.

[0008] Further, a one-way locking tooth groove is provided on the outer side of the seat body of the connection seat, and the cross-sectional shapes of the top block of the locking block and a single tooth groove of the one-way locking tooth groove are both right-angled triangles. When the disassembly and assembly mechanism rotates in the direction of loosening the locking bolt, the block of the locking block is engaged with the straight edge of the tooth groove of the one-way locking tooth groove.

[0009] Further, a reset top spring is provided inside the locking block, and both ends of the reset top spring are fixedly connected to the inside of the locking block and the inside of the track seat respectively.

[0010] Further, an unlocking rod is provided on the top of the track seat, and an arc-shaped unlocking groove is provided inside the disc body of the control disc, and the unlocking rod is inserted into the unlocking groove.

[0011] Further, a driving protrusion is provided on the side of the control disc, and a spiral driving groove is provided inside the cylinder body of the unlocking cylinder, and the driving protrusion is inserted into the driving groove.

[0012] Further, a locking top spring is provided inside the unlocking cylinder, and both ends of the locking top spring respectively abut against the inside of the unlocking cylinder and the top of the control disc.

[0013] Further, the cross-sectional shape of the top seat body of the mounting seat is a regular polygon, and a positioning groove is provided on the top of the unlocking cylinder, and the seat body part with a regular polygon cross-section on the top of the mounting seat is inserted into the positioning groove.

[0014] Beneficial effects

[0015] 1. When the device is in use, the installation and disassembly mechanism can install the protection plate at the bottom of the chassis skeleton, thereby protecting the battery or other components inside the chassis skeleton from impact. At the same time, under the action of the locking mechanism, when the installation and disassembly mechanism is installed, it can be automatically locked and cannot rotate in the loosening direction, thus avoiding the phenomenon that the installation and disassembly mechanism loosens due to the vibration of the chassis skeleton during driving. The protection plate can be stably fixed at the bottom of the chassis skeleton for use. At the same time, the installation and disassembly mechanism is not non-removable. By manual operation, the locking relationship between the locking mechanism and the installation and disassembly mechanism can also be released, so that the installation and disassembly mechanism and the protection plate can be removed to realize operations such as vehicle maintenance and repair. After the operations such as vehicle maintenance and repair are completed, the protection plate can still be installed and fixed at the bottom of the chassis skeleton through the installation and disassembly mechanism, reducing the use cost and improving the flexibility, stability and practicability of the device.

[0016] 2. The connection component can install the protection plate at the bottom of the chassis skeleton to achieve anti-impact protection for the vehicle battery and the internal components of the chassis. After the locking bolts pass through the inside of the connection seat and the mounting seat in sequence, when the locking bolts are rotated forward (here, the rotation direction of the locking bolts tightened inside the chassis skeleton is the forward direction), the locking bolts can be screwed into the inside of the chassis skeleton under the action of the rod thread. Thus, when the connection seat follows the action of the locking bolts being screwed into the inside of the chassis skeleton, the connection seat can be inserted into the inside of the mounting seat and finally abutted tightly inside the mounting seat, thereby realizing the installation of the connection component, that is, the protection plate is installed and fixed at the bottom of the chassis skeleton for use, with convenient installation and flexible use.

[0017] 3. After the connection component is installed, it can automatically trigger the locking structure, so that the entire installation and disassembly mechanism cannot rotate in the reverse direction. When the locking bolts are rotated forward, the synchronous groove can drive the connection seat to rotate and rise synchronously through the synchronous block. When the connection seat is initially inserted into the inside of the mounting seat, at this time, under the action of the block with a trapezoidal cross-section at the top of the connection seat, the chamfer position at the bottom of the locking block can be squeezed, so that the locking block will move into the inside of the track seat and will not hinder the insertion of the connection seat. When the connection seat is inserted into the inside of the mounting seat, at this time, the locking block is inserted into the inside of the one-way locking tooth groove under the action of the reset top spring. Thus, when the locking bolts are rotated forward thereafter, the inclined sides of the locking block and the tooth groove of the one-way locking tooth groove can be mutually squeezed and avoided, so that the locking bolts can always be locked forward to realize the stable installation of the protection plate. Similarly, thereafter, under the clamping and limiting action of the straight sides of the tooth grooves of the locking block and the one-way locking tooth groove, the installation and disassembly mechanism can never rotate in the reverse direction, avoiding the phenomenon that the connection component loses the positioning and fixing function of the protection plate due to the vibration of the chassis skeleton, and the use is stable.

[0018] 4. While the locking mechanism can lock the installation and disassembly mechanism, it can also release this state. In the reset state, under the action of the locking top spring, the installation and disassembly mechanism is always locked and unable to rotate in the reverse direction after installation. When the protective plate needs to be disassembled, simply pull down the unlocking cylinder to release the locking relationship between the locking mechanism and the installation and disassembly mechanism. When pulling down the unlocking cylinder, the driving groove of the unlocking cylinder can drive the control disk to rotate through the driving protrusion. Thus, when the control disk rotates, the unlocking groove can drive the track seat to move outward through the unlocking rod, so that the locking block disengages from the inside of the one-way locking tooth groove. Thereby, the installation and disassembly mechanism can rotate freely thereafter. Then, keep the unlocking cylinder in the pulled-down state and rotate the locking bolt in the reverse direction to complete the disassembly of the installation and disassembly mechanism and the protective plate, which facilitates the subsequent maintenance and repair operations of the automotive chassis parts. When the maintenance and repair operations of the automotive chassis parts are completed, the protective plate can be reinstalled at the bottom of the chassis skeleton through the installation and disassembly mechanism for recycling, reducing the usage cost, and having extremely high flexibility and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0020] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0021] In the accompanying drawings:

[0022] Figure 1 is a schematic structural diagram of the present invention after the protective plate is installed at the bottom of the chassis skeleton.

[0023] Figure 2 is the present invention Figure 1 internal structural schematic diagram.

[0024] Figure 3 is a schematic structural diagram of the present invention after the installation and disassembly mechanism is disassembled.

[0025] Figure 4 is a schematic structural diagram of the present invention after the locking mechanism is disassembled.

[0026] Figure 5 is a schematic structural diagram of the inside of the present invention when the connecting seat is inserted into the mounting seat at the initial stage.

[0027] Figure 6 is a schematic structural diagram of the inside of the present invention when the unlocking cylinder is pulled down.

[0028] Figure 7 is the present invention Figure 2 enlarged structural schematic diagram of part A.

[0029] Figure 8 is the present invention Figure 5 enlarged structural schematic diagram of part B.

[0030] Figure 9 is the enlarged structural schematic diagram of part C in the present invention Figure 6 in the present invention.

[0031] List of reference numerals

[0032] 1. Chassis assembly; 101. Chassis skeleton; 102. Protection plate; 2. Installation and disassembly mechanism; 201. Connecting seat; 2011. Synchronization block; 2012. One-way locking tooth groove; 202. Locking bolt; 2021. Synchronization groove; 3. Locking mechanism; 301. Mounting seat; 302. Control panel; 3021. Unlocking groove; 3022. Driving projection; 303. Unlocking cylinder; 3031. Driving groove; 3032. Locking top spring; 3033. Positioning groove; 304. Track seat; 3041. Unlocking rod; 305. Locking block; 3051. Reset top spring. Detailed implementation manners

[0033] In the following, the technical solutions of the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings of the specific embodiments of the present invention.

[0034] Embodiment: Please refer to Figures 1 to 9 as shown in

[0035] The present invention provides an anti-collision structure for a chassis, including a chassis assembly 1. The chassis assembly 1 includes a chassis skeleton 101 and a protective plate 102. The protective plate 102 is installed at the bottom of the chassis skeleton 101 through a connection assembly, and the connection assembly is composed of a disassembly and assembly mechanism 2 and a locking mechanism 3. The disassembly and assembly mechanism 2 includes a connection seat 201 and a locking bolt 202. The connection seat 201 is rotatably connected inside the protective plate 102, and the top of the locking bolt 202 is threadedly screwed inside the chassis assembly 1 through a rod. The locking mechanism 3 includes a mounting seat 301, a control disk 302, an unlocking cylinder 303, a track seat 304, and a locking block 305. The top of the mounting seat 301 is fixedly connected to the bottom of the chassis skeleton 101, and the control disk 302 is rotatably connected to the outside of the mounting seat 301. The unlocking cylinder 303 is inserted into the outside of the mounting seat 301, and the track seat 304 is inserted into the inside of the mounting seat 301. The locking block 305 is inserted into the inside of the track seat 304. The rod of the locking bolt 202 passes through the inside of the connection seat 201 and the mounting seat 301, and the connection seat 201 is inserted into the bottom of the mounting seat 301. The connection assembly can install the protective plate 102 at the bottom of the chassis skeleton 101 to achieve anti-collision protection for the vehicle battery and internal components of the chassis. After the locking bolt 202 passes through the inside of the connection seat 201 and the mounting seat 301 in sequence, when the locking bolt 202 is rotated forward (here, the rotation direction in which the locking bolt 202 is tightened inside the chassis skeleton 101 is defined as the forward direction), the locking bolt 202 can be screwed into the inside of the chassis skeleton 101 under the action of the rod thread. Thus, when the connection seat 201 follows the action of the locking bolt 202 being screwed into the inside of the chassis skeleton 101, the connection seat 201 can be inserted into the inside of the mounting seat 301 and finally abutted tightly inside the mounting seat 301, thereby realizing the installation of the connection assembly, that is, the protective plate 102 is installed and fixed at the bottom of the chassis skeleton 101 for use. The installation is convenient and the use is flexible.

[0036] Among them, a synchronization groove 2021 is provided on the outer part of the rod body of the locking bolt 202, and a synchronization block 2011 is provided on the outer part of the connecting seat 201. The synchronization block 2011 is inserted into the synchronization groove 2021. During use, after the connection assembly is installed, the locking structure can be automatically triggered, so that the entire disassembly and assembly mechanism 2 cannot rotate in the reverse direction. When the locking bolt 202 rotates forward, the synchronization groove 2021 can drive the connecting seat 201 to rotate and rise synchronously through the synchronization block 2011. The bottom of the locking block 305 is designed with an inclined chamfer, and the cross-sectional shape of the top seat body of the connecting seat 201 is trapezoidal. When the connecting seat 201 is inserted into the installation seat 301 at the initial stage, at this time, under the action of the block with a trapezoidal cross-section at the top of the connecting seat 201, the chamfer position at the bottom of the locking block 305 can be extruded, so that the locking block 305 will move into the track seat 304 and will not hinder the insertion of the connecting seat 201. A return spring 3051 is provided inside the locking block 305, and both ends of the return spring 3051 are fixedly connected to the inside of the locking block 305 and the inside of the track seat 304 respectively. When the connecting seat 201 is inserted into the installation seat 301, at this time, the locking block 305 is inserted into the internal one-way locking tooth groove 2012 under the action of the return spring 3051. Therefore, when the locking bolt 202 rotates forward thereafter, the hypotenuse of the tooth groove between the locking block 305 and the one-way locking tooth groove 2012 can be mutually extruded and avoided, so that the locking bolt 202 can always be locked forward to realize the stable installation of the protection plate 102. Similarly, thereafter, under the action of the locking and limiting function of the straight edge of the tooth groove between the locking block 305 and the one-way locking tooth groove 2012, the disassembly and assembly mechanism 2 can never rotate in the reverse direction, avoiding the phenomenon that the connection assembly loses the positioning and fixing function of the protection plate 102 due to the vibration of the chassis skeleton 101, and the use is stable.

[0037] Among them, a one-way locking tooth groove 2012 is provided on the outer side of the seat body of the connecting seat 201, and the cross-sectional shapes of the top block of the locking block 305 and a single tooth groove of the one-way locking tooth groove 2012 are both right-angled triangles. When the disassembly and assembly mechanism 2 rotates in the direction of loosening the locking bolt 202, the block of the locking block 305 is engaged with the straight edge of the tooth groove of the one-way locking tooth groove 2012.

[0038] Among them, a driving protrusion 3022 is provided on the side surface of the control panel 302, and a spiral driving groove 3031 is provided inside the cylinder body of the unlocking cylinder 303. The driving protrusion 3022 is inserted into the inside of the driving groove 3031. During use, the locking mechanism 3 can lock the installation and disassembly mechanism 2 while also being able to release this state. A locking top spring 3032 is provided inside the unlocking cylinder 303, and both ends of the locking top spring 3032 respectively abut against the inside of the unlocking cylinder 303 and the top of the control panel 302. In the reset state, under the action of the locking top spring 3032, the installation and disassembly mechanism 2 is always locked and cannot rotate in the reverse direction after installation. When it is necessary to disassemble the protection plate 102, only need to pull down the unlocking cylinder 303 to release the locking relationship between the locking mechanism 3 and the installation and disassembly mechanism 2. When pulling down the unlocking cylinder 303, the driving groove 3031 of the unlocking cylinder 303 can drive the control panel 302 to rotate through the driving protrusion 3022. An unlocking rod 3041 is provided on the top of the track seat 304, and an arc-shaped unlocking groove 3021 is provided inside the disc body of the control panel 302. The unlocking rod 3041 is inserted into the inside of the unlocking groove 3021. Thus, when the control panel 302 rotates, the unlocking groove 3021 can drive the track seat 304 to move outwards through the unlocking rod 3041, so that the locking block 305 disengages from the inside of the one-way locking tooth groove 2012. Thus, the installation and disassembly mechanism 2 can rotate freely thereafter. Then, while maintaining the pulled-down state of the unlocking cylinder 303, reverse-rotate the locking bolt 202 to complete the disassembly of the installation and disassembly mechanism 2 and the protection plate 102, which is convenient for subsequent maintenance and repair operations of automotive chassis parts. When the maintenance and repair operations of automotive chassis parts are completed, the protection plate 102 can be reinstalled at the bottom of the chassis frame 101 through the installation and disassembly mechanism 2 for recycling, reducing the use cost, and having extremely high flexibility and stability.

[0039] Among them, the cross-sectional shape of the top seat body of the mounting seat 301 is a regular polygon, and a positioning groove 3033 is provided at the top of the unlocking cylinder 303. The seat body part with a regular polygon cross-section at the top of the mounting seat 301 is inserted into the inside of the positioning groove 3033. During use, since the mounting seat 301 is fixedly installed at the bottom of the chassis frame 101, the mounting seat 301 can never rotate, thus being able to stably realize the function of limiting and locking the installation and disassembly mechanism 2. The positioning groove 3033 can limit the movement track of the unlocking cylinder 303, so that the unlocking cylinder 303 will not be skewed, distorted or rotate by itself during movement, and the use and regulation are stable.

[0040] Specific usage method and function of this embodiment: In the present invention, when it is necessary to install the protection plate 102 at the bottom of the chassis skeleton 101, the protection plate 102 can be installed at the bottom of the chassis skeleton 101 through the connection component, thereby realizing the anti-impact protection for the automotive battery and the internal components of the chassis. After passing the locking bolt 202 through the connection seat 201 and the installation seat 301 in sequence, when the locking bolt 202 is rotated forward (here, the rotation direction when the locking bolt 202 is tightened inside the chassis skeleton 101 is defined as the forward direction), the locking bolt 202 can be screwed into the inside of the chassis skeleton 101 under the action of the rod thread. Thus, when the connection seat 201 follows the action of the locking bolt 202 being screwed into the inside of the chassis skeleton 101, the connection seat 201 can be inserted into the inside of the installation seat 301 and finally abutted tightly inside the installation seat 301, thereby realizing the installation of the connection component, that is, installing and fixing the protection plate 102 at the bottom of the chassis skeleton 101 for use. After the connection component is installed, it can automatically trigger the locking structure, so that the entire disassembly and installation mechanism 2 cannot rotate in the reverse direction. When the locking bolt 202 rotates forward, the synchronous groove 2021 can drive the connection seat 201 to rotate and rise synchronously through the synchronous block 2011. When the connection seat 201 is initially inserted into the inside of the installation seat 301, at this time, under the action of the block with a trapezoidal cross-section at the top of the connection seat 201, it can squeeze the chamfer position at the bottom of the locking block 305, so that the locking block 305 will move into the inside of the track seat 304 and will not hinder the insertion of the connection seat 201. When the connection seat 201 is inserted into the inside of the installation seat 301, at this time, the locking block 305 is inserted into the inside of the one-way locking tooth groove 2012 under the action of the reset top spring 3051. Thus, when the locking bolt 202 is rotated forward thereafter, the inclined sides of the tooth grooves between the locking block 305 and the one-way locking tooth groove 2012 can be mutually squeezed and avoided, so that the locking bolt 202 can always be locked forward to realize the stable installation of the protection plate 102. Similarly, thereafter, under the action of the locking and limiting effect of the straight sides of the tooth grooves of the locking block 305 and the one-way locking tooth groove 2012, the disassembly and installation mechanism 2 can never rotate in the reverse direction, avoiding the phenomenon that the connection component loses the positioning and fixing function of the protection plate 102 due to the vibration of the chassis skeleton 101. When the vehicle needs maintenance and the protection plate 102 needs to be removed later, pulling down the unlocking cylinder 303 can release the locking relationship of the locking mechanism 3 on the disassembly and installation mechanism 2. When pulling down the unlocking cylinder 303, the driving groove 3031 of the unlocking cylinder 303 can drive the control disk 302 to rotate through the driving protrusion 3022. Thus, when the control disk 302 rotates, the unlocking groove 3021 can drive the track seat 304 to move outward through the unlocking rod 3041, so that the locking block 305 is disengaged from the inside of the one-way locking tooth groove 2012. Thus, the disassembly and installation mechanism 2 can rotate freely thereafter. Then, keeping the unlocking cylinder 303 in the pulled-down state and rotating the locking bolt 202 in the reverse direction can complete the disassembly of the disassembly and installation mechanism 2 and the protection plate 102, facilitating the subsequent repair and maintenance operations of the vehicle chassis parts.After the repair and maintenance operations of the vehicle chassis parts are completed, the protective plate 102 can be reinstalled at the bottom of the chassis frame 101 through the installation and removal mechanism 2.

Claims

1. A chassis anti-collision structure, characterized in that, Comprising: A chassis assembly (1), the chassis assembly (1) including a chassis frame (101) and a protective plate (102), the protective plate (102) being mounted at the bottom of the chassis frame (101) through a connecting assembly, and the connecting assembly being composed of a disassembly and assembly mechanism (2) and a locking mechanism (3); the disassembly and assembly mechanism (2) including a connecting seat (201) and a locking bolt (202), the connecting seat (201) being rotatably connected inside the protective plate (102), and the top of the locking bolt (202) being threadedly screwed inside the chassis assembly (1) through a rod; the locking mechanism (3) including a mounting seat (301), a control panel (302), an unlocking cylinder (303), a track seat (304) and a locking block (305), the top of the mounting seat (301) being fixedly connected to the bottom of the chassis frame (101), and the control panel (302) being rotatably connected to the outside of the mounting seat (301), the unlocking cylinder (303) being inserted into the outside of the mounting seat (301), and the track seat (304) being inserted into the inside of the mounting seat (301), the locking block (305) being inserted into the inside of the track seat (304), the rod of the locking bolt (202) passing through the inside of the connecting seat (201) and the mounting seat (301), and the connecting seat (201) being inserted into the bottom of the mounting seat (301); A synchronous groove (2021) is provided on the outer side of the rod of the locking bolt (202), and a synchronous block (2011) is provided on the outside of the connecting seat (201), and the synchronous block (2011) is inserted into the synchronous groove (2021); The bottom of the locking block (305) is designed with an inclined chamfer, and the cross-sectional shape of the top seat of the connecting seat (201) is trapezoidal; A one-way locking tooth groove (2012) is provided on the outer side of the seat of the connecting seat (201), and the cross-sectional shapes of the top block of the locking block (305) and a single tooth groove of the one-way locking tooth groove (2012) are both right-angled triangles. When the disassembly and assembly mechanism (2) rotates in the direction of loosening the locking bolt (202), the block of the locking block (305) is mutually clamped with the straight side of the tooth groove of the one-way locking tooth groove (2012); An unlocking rod (3041) is provided on the top of the track seat (304), and an arc-shaped unlocking groove (3021) is provided inside the disk body of the control panel (302), and the unlocking rod (3041) is inserted into the unlocking groove (3021); A driving protrusion (3022) is provided on the side of the control panel (302), and a spiral driving groove (3031) is provided inside the cylinder body of the unlocking cylinder (303), and the driving protrusion (3022) is inserted into the driving groove (3031); 2. The anti-collision structure for a chassis according to claim 1, wherein: A reset top spring (3051) is provided inside the locking block (305), and both ends of the reset top spring (3051) are fixedly connected to the inside of the locking block (305) and the inside of the track seat (304) respectively.

3. The anti-collision structure for a chassis according to claim 1, characterized in that: Inside the unlocking cylinder (303), there is a locking top spring (3032), and both ends of the locking top spring (3032) are respectively abutted against the inside of the unlocking cylinder (303) and the top of the control disc (302).

4. The chassis anti-collision structure according to claim 1, characterized in that: The cross-sectional shape of the top body of the mounting base (301) is a regular polygon, and a positioning groove (3033) is provided at the top of the unlocking cylinder (303), and the body part of the regular polygon cross-section at the top of the mounting base (301) is inserted into the positioning groove (3033).

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