Self-resetting multidirectional anti-collision protection device

Abstract

The utility model discloses a self-resetting multidirectional anti-collision protection device, and relates to the technical field of cutting, welding and the like. The device comprises laser equipment, a front mounting plate, a rear mounting plate and a buffer mechanism, the buffer mechanism comprises a reset supporting seat and is provided with a buffer spring, and the outer cylindrical surface and an inner hole of the reset supporting seat are slotted and provided with sealing rings, so that a closed space is formed in the buffer mechanism, and a protection effect is achieved by filling high-pressure gas and the buffer spring together; the buffering mechanism further comprises a swing arm rocker, and the rear end of the swing arm rocker is arranged to be an inclined face so that the swing arm rocker can swing in any direction. A screw hole is formed in the front end surface of the round rod, a front mounting plate is mounted, and a dustproof net mounting groove is formed in the front end of the round rod; damage of impact force to the laser head in an impact accident is reduced through buffering of air pressure and the spring, and meanwhile automatic reset is conducted through the air pressure and the spring; the swing arm rocker swings by 360 degrees and outputs a signal to an upper computer, so that the laser head and equipment are protected in all directions.

Description

Technical Field

[0001] This invention relates to the field of laser cutting and welding technology, and in particular to a self-resetting multi-directional anti-collision protection device. Background Technology

[0002] With the development of science and technology and productivity, lasers have begun to be widely used in industrial processing and other fields. In the processing industry, laser cutting technology has become one of the core processes of modern manufacturing due to its advantages of high precision and high efficiency. However, in complex laser cutting operations, accidental collisions between the laser head and materials or tooling fixtures occur frequently, which may lead to equipment damage, processing interruption, or even safety hazards.

[0003] In current technologies, every effort is made to avoid collisions with the laser head during operation. However, laser equipment is affected by complex working environments, diverse types of work, and manual operation, making collisions difficult to avoid. As the core component of laser equipment, the laser head is extremely susceptible to damage or even destruction in collisions. The cost of repairing or replacing the laser head is high, and if the laser machine tool supplier is far from the customer, they can only wait for engineers to come to their location for repairs and replacements, which greatly affects the accuracy of the laser machine tool and the normal production of the factory.

[0004] However, among the existing anti-collision protection technologies in the industry, there is no device or apparatus that can protect laser equipment in the event of a collision. Based on this situation, the present invention proposes a self-resetting multi-directional anti-collision protection device that can protect the laser head in the event of a collision during the operation of a laser device. Summary of the Invention

[0005] The purpose of this invention is to fill the gap in the prior art, namely, the protection technology when a collision occurs, and thus proposes a self-resetting multi-directional anti-collision protection device.

[0006] To protect laser equipment in the event of an impact accident, the present invention employs the following technical solution:

[0007] The self-resetting multi-directional anti-collision protection device includes:

[0008] The main mounting component houses a reset support base, with multiple evenly distributed frustums between it and the buffer spring for mounting and limiting. The outer cylindrical surface and inner hole of the reset support base are slotted to install sealing ring one and sealing ring two, respectively. A copper triangular pressure block is mounted on the front end face of the reset support base, supporting and lifting the rocker arm. The rear end of the rocker arm has a large cylindrical section with three flange platforms and a positioning module. The spherical surface of the positioning module contacts and engages with the V-shaped groove at the rear end of the limiting sleeve. The limiting sleeve is installed in the mounting ring groove on the inner end face of the front cover. The front cover has threaded holes and an end cover bushing is installed. The front end round rod of the rocker arm extends from the inner hole of the end cover bushing and is fitted with a front mounting plate. The front end of the rocker arm round rod has a dustproof mesh mounting groove and a metal dustproof mesh is installed. The rear end of the metal dustproof mesh has a dustproof mesh cover plate installed on the front cover.

[0009] The main mounting component has a cylinder at its center, flush with the front end face, with a threaded hole inside. A displacement detection switch assembly and a first switch trigger are mounted on the cylinder. The first switch trigger has an inner hole and a long slot for mounting a second limit switch trigger. The second switch trigger has a hole inside for mounting a fixed trigger spring. The bottom of the main mounting component has a countersunk hole for mounting a fixing nut to secure the displacement detection switch assembly, and a rear mounting plate is mounted on the bottom end face. The outer cylindrical surface of the main mounting component has a cross-section and a circuit board mounting base is mounted thereon. A sensing circuit board is mounted inside the circuit board mounting base, and its side has mounting holes for mounting a signal connector. The rear outer wall of the main mounting component has mounting holes for mounting an air pipe connector and a pressure relief valve.

[0010] As a preferred embodiment of the present invention: the front end face of the reset support seat is provided with three evenly distributed irregular cylindrical surfaces, each with a guide groove, and the outer cylindrical surface of the main body is provided with a limiting bolt mounting hole corresponding to the guide groove of the reset support seat.

[0011] As a preferred embodiment of the present invention, the triangular position of the copper triangular pressure block is consistent with the directional position of the three sets of flange platforms on the large cylinder at the rear end of the rocker arm.

[0012] As a preferred embodiment of the present invention, the inner wall of the mounting body is provided with three sets of pressure relief grooves.

[0013] As a preferred embodiment of the present invention, the irregular cylindrical surface on the reset support is larger than the outer circle of the rear end of the limiting sleeve, and the irregular cylindrical surface on the reset support is offset from the V-shaped groove at the rear end of the limiting sleeve to prevent interference with the positioning module.

[0014] As a preferred embodiment of the present invention, the mating surface between the V-shaped groove at the rear end of the limiting sleeve and the spherical surface of the positioning module is provided with an inward drafting slope.

[0015] As a preferred embodiment of the present invention, the bottom end face of the end cap bushing and the end face of the front end cap mounting ring groove are slightly higher than the lowest point of the V-shaped groove on the limiting sleeve, so that they make contact with the spherical surface of the positioning module for limiting.

[0016] As a preferred embodiment of the present invention, the bottom outer cylindrical surface of the rocker arm is provided with an inclined surface that allows it to swing in any direction.

[0017] As a preferred embodiment of the present invention, the gap between the front end round rod of the rocker arm and the inner hole of the end cover bushing, and the gap between the rear end face of the front mounting plate installed on the front end face of the rocker arm and the end face of the dustproof net cover plate are greater than the distance the rocker arm swings to its limit position.

[0018] As a preferred embodiment of the present invention: the spherical surface of the positioning module installed on the rocker arm slides along the V-shaped groove at the rear end of the limiting sleeve (8) when impacted, and after the impact factor is eliminated, it is pushed back to the origin by air pressure and spring to achieve automatic reset.

[0019] The beneficial effects of this invention are as follows:

[0020] It can protect against impacts from various directions: The self-resetting multi-directional anti-collision protection device can cope with impacts from various directions (such as left and right, front and back, up and down). By rotating, swinging or displacing the rocker arm, the air inside the mounting body-1 and the trigger spring-23 are compressed to buffer the impact force, thereby reducing damage to the laser head and related mechanical parts.

[0021] Automatic reset function: Through the contact and cooperation design between the positioning module-10 installed on the swing arm rocker arm-9 and the groove surface of the limiting sleeve-8, under the action of air pressure and spring, after the impact factor is eliminated, the positioning module-10 installed on the swing arm rocker arm-9 can slide back to the origin along the V-shaped groove at the rear end of the limiting sleeve-8 to automatically reset. The V-shaped groove at the rear end of the limiting sleeve-8 is provided with an inward drafting slope to ensure the reset accuracy of the swing arm rocker arm-9 and the positioning module-10, ensuring that the laser head can quickly return to the normal working state.

[0022] Impact alarm mechanism: When a collision is detected quickly, the two wires are closed. It is applicable to both DC and AC. When an impact occurs, the displacement detection switch will be triggered, and a signal will be sent to the machine tool control system to stop the machine immediately and raise the laser head to avoid further damage.

[0023] Dustproof design: The design of dustproof nets and dustproof covers can prevent smoke and dust from entering the equipment, reduce pollution, delay equipment aging, and reduce maintenance frequency.

[0024] High adaptability: The front and rear mounting plates of the mounting section can be adjusted according to the hole size of different laser heads and machine tools to achieve maximum adaptability.

[0025] In summary, this invention demonstrates significant advantages in terms of anti-collision capability, high-precision self-resetting, structural design, and ease of maintenance, filling a gap in the industry for protective devices in the event of collisions with laser equipment. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the overall assembly of the self-resetting multi-directional anti-collision protection device of the present invention. Figure 1 ;

[0027] Figure 2 This is a three-dimensional structural diagram of the overall assembly of the self-resetting multi-directional anti-collision protection device of the present invention. Figure 2 ;

[0028] Figure 3 This is a front view of the overall assembly of the self-resetting multi-directional anti-collision protection device of the present invention;

[0029] Figure 4 This is a cross-sectional view of the self-resetting multi-directional anti-collision protection device of the present invention.

[0030] Figure 5 This is a partial assembly rear view of the self-resetting multi-directional anti-collision protection device of the present invention;

[0031] Figure 6 This is a partial assembly front view of the self-resetting multi-directional anti-collision protection device of the present invention;

[0032] Figure 7 This is a schematic cross-sectional view of the self-resetting multi-directional anti-collision protection device of the present invention.

[0033] Figure 8 This is an exploded view of the overall assembly of the self-resetting multi-directional anti-collision protection device of the present invention;

[0034] Figure 9 This is a schematic diagram of the left and right impact forces of the self-resetting multi-directional anti-collision protection device of the present invention;

[0035] Figure 10 This is a schematic diagram of the impact forces on the self-resetting multi-directional anti-collision protection device of the present invention before and after impact;

[0036] Figure 11 This is a schematic diagram of the impact force on the self-resetting multi-directional anti-collision protection device of the present invention.

[0037] In the diagram: Mounting main body - 1, Reset support - 2, Sealing ring 1 - 3, Sealing ring 2 - 4, Copper triangular pressure block - 5, Front cover - 6, End cover bushing - 7, Limit sleeve - 8, Swing arm rocker - 9, Positioning module - 10, Dustproof mesh cover - 11, Displacement detection switch assembly - 12, Switch trigger 1 - 13, Switch trigger 2 - 14, Circuit board mounting base - 15, Air pipe connector - 16, Pressure relief valve - 17, Signal connector - 18, Fixing nut - 19, Metal dustproof mesh - 20, Sensing circuit board - 21, Buffer spring - 22, Trigger spring - 23, Rear mounting plate - 24, Front mounting plate - 25, Laser head - 26. Detailed Implementation

[0038] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] Self-resetting multi-directional anti-collision protection device, such as Figures 1 to 8 As shown, it includes: a mounting main body-1 and a reset support-2 that cooperate with each other. The bottom surface of the mounting main body-1 and the lower end surface of the reset support-2 are provided with a plurality of evenly distributed bosses. The bosses are fitted with buffer springs-22 for limiting. The inner hole and outer cylindrical surface of the reset support-2 are provided with grooves and sealing rings-3 and-4 are installed respectively, so that a sealed space is formed inside the mounting main body-1. The other end face of the reset support-2 is provided with three evenly distributed irregular cylindrical surfaces with guide grooves. The outer cylindrical surface of the mounting main body-1 is provided with holes for installing limiting screws to prevent the reset support-2 from rotating. A copper triangular pressure block-5 is installed on the front circular surface of the reset support-2 and lifts the rocker arm-9.

[0041] The swing arm rocker arm-9 is hollow inside, with the copper triangular pressure block-5 in contact with its first stepped surface. The depth of the first stepped hole is less than the height of the copper triangular pressure block-5, meaning there is a gap between the rear end face of the swing arm rocker arm-9 and the reset support seat-2. The rear end face of the swing arm rocker arm-9 has an inclined surface, allowing it to swing in any direction. The rear large cylinder of the swing arm rocker arm-9 has three sets of flange platforms, on which three positioning modules-10 are installed. The spherical surface of the positioning module-10 mates with the V-shaped groove at the rear end of the limiting sleeve-8 for positioning. The positioning module-10 installed on the swing arm rocker arm-9 can slide along the V-shaped groove at the rear end of the limiting sleeve-8 under impact force, air pressure, or spring force to mitigate damage during impact or for automatic reset. The limiting sleeve-8 is installed in the mounting ring groove of the front end cover-6, with a unique installation direction. The front end cover-6 has a large threaded hole for installing the end cover bushing-7, and the front end face of the large cylinder of the swing arm rocker arm-9 mates with the end cover bushing. -7 The rear end face fits together. The forward and backward movement of the swing arm rocker arm -9 is adjusted by adjusting the thread installation depth of the end cover bushing -7 to ensure the fit between the positioning module -10 and the rear V-shaped groove of the limiting sleeve -8. The bottom end face of the end cover bushing -7 is slightly higher than the lowest point of the V-shaped groove on the limiting sleeve -8, so that it makes contact with the spherical surface of the positioning module -10 for limitation. The end face of the mounting ring groove of the front end cover -6 is slightly higher than the lowest point of the V-shaped groove on the limiting sleeve -8, so that it makes contact with the spherical surface of the positioning module -10 for limitation. The front end round rod of the swing arm rocker arm -9 extends out from the inner hole of the end cover bushing -7. The front end face is provided with a threaded hole and a 25 front mounting plate is installed. The front end of the front end round rod of the swing arm rocker arm -9 is provided with a dustproof net mounting groove and a metal dustproof net -20 is installed and fits against the front end face of the front end cover -6. The dustproof net cover plate -11 is installed on the front end cover -6 to prevent the metal dustproof net -20 from moving and to block the entry and accumulation of smoke and dust during operation to avoid affecting the normal operation of the equipment.

[0042] The mounting body component-1 has a cylinder flush with its front end face at its center, which mates with the inner hole of the sealing seat 2 and the copper triangular pressure block-5. The cylinder has a threaded hole inside, where a displacement detection switch assembly-12 and a switch trigger component-13 are installed. The switch trigger component-13 has an inner hole and a long slot for installing a limit switch trigger component-2-14. The switch trigger component-2-14 has a hole inside for installing a fixed trigger spring-23. The inner wall of the mounting body component-1 has three sets of pressure relief grooves, and the bottom end face has... The mounting body has a groove and a countersunk hole. A fixing nut-19 for fixing the displacement detection switch assembly-12 is installed in the countersunk hole, and a rear mounting plate-24 is installed on the bottom end face. The rear end of the outer cylindrical surface of the mounting body-1 has a threaded hole for mounting, and a duct connector-16 and a pressure relief valve-17 are installed there. The outer cylindrical surface of the mounting body-1 has a cross-section and a circuit board mounting base-15 is installed there. The circuit board mounting base-15 has a sensing circuit board-21 installed inside, and a threaded hole on its side is installed there and a signal connector-18 is installed there.

[0043] The front end face of the copper triangular pressure block-5 is provided with a countersunk hole that contacts and engages with the bottom end face of the switch trigger element-14; and the impact sensing sensitivity is adjusted by changing the distance between the switch and the bottom end face of the switch trigger element-14 by adjusting the position of the displacement detection switch assembly-12; and the gap between the front round rod of the swing arm rocker-9 and the inner hole of the end cover bushing-7 is greater than the distance the swing arm rocker-9 swings to its limit position; and the gap between the rear end face of the front mounting plate-25 installed on the front end face of the swing arm rocker-9 and the end face of the dustproof mesh cover plate-11 is greater than the distance the swing arm rocker-9 swings to its limit position.

[0044] Working principle:

[0045] When the laser equipment is running normally, the gas pipe connector-16 connects to the gas pipe and introduces compressed gas into the mounting body-1. The six buffer springs-22 are partially compressed. These two provide gas pressure and spring pressure to the bottom of the reset support-2, causing the reset support-2 to push outward. The copper triangular pressure block-5 installed on the reset support-2 is also driven to lift the swing arm rocker-9, so that the positioning module-10 installed on the swing arm rocker-9 moves to the lowest point of the groove surface of the limit sleeve-8 and makes contact with it, thereby maintaining the stability of the laser head during operation.

[0046] When the laser head experiences an impact, depending on the direction of the impact, the rocker arm-9 will rotate, swing, or directly displace in the corresponding direction. These actions will cause the reset support-2 to move backward, along with the copper triangular pressure block-5, which will no longer support the switch trigger-14. The unsupported switch trigger-14 will be pushed out of contact by the spring-23, triggering the displacement detection switch assembly-12. This signal is sent to the control system via a wire, and the equipment immediately stops operating and rapidly raises the laser head to avoid secondary damage. When the reset support-2 moves backward, the sealing gas inside the mounting body-1 is rapidly compressed, and the six buffer springs-22 are further compressed. The reaction force generated during this process effectively absorbs the impact energy, providing a buffering protection. Furthermore, the pressure relief groove on the inner wall of the mounting body-1 and the pressure relief valve-17 installed on its outer cylindrical surface prevent the internal pressure of the mounting body-1 from exceeding the impact force, thus ensuring the buffering effect.

[0047] Furthermore, due to the contact fit design between the positioning module-10 installed on the swing arm rocker arm-9 and the groove surface of the limiting sleeve-8, as well as the limiting effect of the end face of the mounting ring groove of the front cover-6 and the bottom end face of the end cover bushing-7, after the impact factor is eliminated, under the action of air pressure and spring, the positioning module-10 installed on the swing arm rocker arm-9 can slide back to the origin along the V-shaped groove at the rear end of the limiting sleeve-8 to automatically reset. Moreover, the V-shaped groove at the rear end of the limiting sleeve-8 is provided with an inward drafting slope to ensure the reset accuracy of the swing arm rocker arm-9 and the positioning module-10, ensuring that the laser head can quickly return to the normal working state, thereby ensuring the stability and reliability of the equipment. Example

[0048] like Figure 9 As shown, when a laser device experiences a left-right impact, the laser head-26 will deflect when it encounters a vertical deflection impact. This deflection causes the swing arm rocker-9 to rotate, and the positioning module-10 on the swing arm rocker-9 slides backward along the groove edge of the limit sleeve-8. Simultaneously, it presses the reset support-2 and the copper triangular pressure block-5 backward. The sealing gas inside the mounting body-1 and the six buffer springs-22 are compressed, providing a buffering effect. The mounting body-1 also has three pressure relief grooves. When the reset support-2 descends to a certain distance, the pressure relief grooves are exposed to release air, preventing excessive internal reaction force from damaging the laser head. Meanwhile, the switch trigger element-14, losing the support of the 5-triangular pressure block, is also pressed backward by the trigger spring-23 until it contacts and triggers the switch on the displacement detection switch assembly-12. The displacement detection switch assembly-12 sends an alarm signal, which the machine tool control system receives and immediately stops. When the impact factor is eliminated... Afterwards, under the action of air pressure and buffer spring-22, the reset support seat-2 is lifted, driving the rocker arm-9 to move backward, and causing the positioning module-10 on the rocker arm-9 to slide into the bottom of the groove along the groove surface of the limiting sleeve-8. The groove surface on the limiting sleeve-8 is designed to be inwardly molded to ensure that the positioning module-10 will not slide outward. The bottom end face of the end cap bushing-7 is slightly higher than the lowest point of the V-shaped groove on the limiting sleeve-8 to cooperate with the positioning module-10. This design can ensure that... The positioning module-10 will not slide inward. When the laser head-26 leaves the impacting object, under the action of air pressure and spring, the positioning module-10, mounted on the swing arm rocker arm-9, can slide back to its original position along the V-shaped groove at the rear end of the limiting sleeve-8 for automatic reset after the impact factor has been eliminated. The V-shaped groove at the rear end of the limiting sleeve-8 has an inward drafting slope to ensure the reset accuracy of the swing arm rocker arm-9 and the positioning module-10, ensuring that the laser head can quickly return to normal working condition. Automatic reset is completed without manual reset, reducing human intervention and minimizing operator access to the machine tool work area, greatly improving safety.

[0049] When the middle part is impacted, the rocker arm-9 will swing left and right. Due to the sloping design at the bottom of the rocker arm-9, when the left and right swing position of the rocker arm-9 exceeds the gap between it and the reset support-2, the reset support-2 will be pressed down. The sealing gas inside the mounting body-1 and the six buffer springs-22 are compressed, which plays a buffering role. The remaining parts are also driven to move backward, triggering the displacement detection switch assembly-12, and the equipment alarms and stops. Example

[0050] like Figure 10 As shown, when the laser equipment experiences a front-to-back impact, the upper and lower parts will be impacted, causing the swing arm rocker arm-9 to swing up and down. When the swing position exceeds the gap between the swing arm rocker arm-9 and the reset support base-2, the reset support base-2 will be pressed down. The sealing gas inside the mounting body-1 and the six buffer springs-22 will be compressed, which will play a buffering role. The remaining parts will also be driven to move backward, triggering the displacement detection switch assembly-12, causing the equipment to alarm and stop.

[0051] When the middle part is hit, the rocker arm-9 moves directly backward upon impact, and the impact protection effect is the same as described above. Example

[0052] like Figure 11 As shown, when the laser equipment experiences an impact accident in the vertical direction, it will cause the swing arm rocker arm-9 to swing up and down. When the vertical swing position exceeds the gap between the swing arm rocker arm-9 and the reset support base-2, the reset support base-2 will press down, the sealing gas inside the mounting body-1 and the six buffer springs-22 will be compressed, which will play a buffering role. The remaining parts will also be driven to move backward, triggering the displacement detection switch assembly-12, and the equipment will alarm and stop.

[0053] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A self-resetting multi-directional anti-collision protection device, characterized in that, include: The main mounting component (1) has a reset support seat (2) installed inside. Between the two, there are multiple evenly distributed frustums that limit the installation of the buffer spring (22). The outer cylindrical surface and inner hole of the reset support seat (2) are respectively slotted to install sealing ring one (3) and sealing ring two (4). The front end face of the reset support seat (2) is equipped with a copper triangular pressure block (5). The copper triangular pressure block (5) supports and lifts the rocker arm (9). The rear end of the rocker arm (9) has a large cylinder with three sets of flange platforms and a positioning module (10) installed. The positioning module (10) 0) The spherical surface and the V-shaped groove at the rear end of the limiting sleeve (8) are in contact and fit. The limiting sleeve (8) is installed in the mounting ring groove on the inner end face of the front cover (6). The front cover (6) is provided with a threaded hole and is equipped with an end cover bushing (7). The round rod at the front end of the rocker arm (9) extends out from the inner hole of the end cover bushing (7) and is equipped with a front mounting plate (25). The front end of the round rod at the front end of the rocker arm (9) is provided with a dustproof net mounting groove and is equipped with a metal dustproof net (20). The rear end of the metal dustproof net (20) is provided with a dustproof net cover plate (11) and is installed on the front cover (6). The mounting body (1) has a cylinder at its center that is flush with the front end face, and the cylinder has a threaded hole inside, and a displacement detection switch assembly (12) and a switch trigger (13) are installed thereon; the switch trigger (13) has an inner hole and a long slot for installing a limit switch trigger (14); the switch trigger (14) has a hole inside for installing a fixed trigger spring (23); the mounting body (1) has a countersunk hole at the bottom for installing a fixing nut (19) for fixing the displacement detection switch assembly (12), and a rear mounting plate (24) is installed on the bottom end face; the outer cylindrical surface of the mounting body (1) has a cut surface and a circuit board mounting base (15) is installed thereon; the circuit board mounting base (15) has an induction circuit board (21) inside, and a mounting hole is provided on its side for installing a signal connector (18); the outer wall of the rear end of the mounting body (1) has a mounting hole for installing an air pipe connector (16) and a pressure relief valve (17).

2. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The reset support base (2) has three evenly distributed irregular cylindrical surfaces on its front end, and guide grooves (27) are provided on the surface. The outer cylindrical surface of the mounting body (1) is provided with corresponding limit bolt mounting holes (28).

3. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The triangular position of the copper triangular pressure block (5) is consistent with the directional position of the three sets of flange platforms on the large cylinder at the rear end of the rocker arm (9).

4. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The inner wall of the main installation component (1) is provided with three sets of pressure relief grooves.

5. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The irregular cylindrical surface on the reset support (2) is larger than the outer circle of the rear end of the limiting sleeve (8), and the irregular cylindrical surface on the reset support (2) is offset from the V-shaped groove at the rear end of the limiting sleeve (8) to prevent interference with the positioning module (10).

6. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The V-shaped groove at the rear end of the limiting sleeve (8) and the spherical surface of the positioning module (10) are provided with an inward drafting slope.

7. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The bottom end face of the end cap bushing (7) and the end face of the mounting ring groove of the front end cap (6) are slightly higher than the lowest point of the V-shaped groove on the limiting sleeve (8), and the two make spherical contact with the positioning module (10) for limiting.

8. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The bottom outer cylindrical surface of the swing arm (9) is provided with an inclined surface that allows it to swing in any direction.

9. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The gap between the front end round rod of the swing arm rocker (9) and the inner hole of the end cover bushing (7), and the gap between the rear end face of the front mounting plate (25) installed on the front end face of the swing arm rocker (9) and the end face of the dustproof net cover plate (11) are greater than the distance of the swing arm rocker (9) swinging to the limit position.

10. The self-resetting multi-directional anti-collision protection device according to claim 1, characterized in that: The spherical surface of the positioning module (10) installed on the rocker arm (9) slides along the V-shaped groove at the rear end of the limiting sleeve (8) when impacted. After the impact factor is eliminated, the air pressure and spring push it back to the origin to achieve automatic reset.

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