CN210423556U - Impact energy-absorbing protection device - Google Patents
Impact energy-absorbing protection device Download PDFInfo
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- CN210423556U CN210423556U CN201921159357.9U CN201921159357U CN210423556U CN 210423556 U CN210423556 U CN 210423556U CN 201921159357 U CN201921159357 U CN 201921159357U CN 210423556 U CN210423556 U CN 210423556U
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Abstract
The utility model provides an impact energy-absorbing protective device, which comprises an energy-absorbing cylinder, wherein the energy-absorbing cylinder is a high-strength and high-toughness anti-fatigue alloy material part, a cylinder opening is arranged at the first end of the energy-absorbing cylinder, and the second end of the energy-absorbing cylinder is closed; the mounting flange is arranged on the first end of the energy absorption cylinder in a surrounding mode and is used for being connected with a protected object; the second end of the guide pipe extends into the inner cavity of the energy absorption cylinder from the cylinder opening of the energy absorption cylinder; and the anti-collision plate is fixedly connected with the first end of the guide pipe. The utility model discloses an energy-absorbing section of thick bamboo of making by the tough antifatigue alloy material of height, the tensile deformation through an energy-absorbing section of thick bamboo absorbs the energy that collision in-process impact force produced, because the yield strength of an energy-absorbing section of thick bamboo is high, the percentage elongation is big, consequently length and the volume of whole device can dwindle correspondingly under the prerequisite of guaranteeing to absorb energy, thereby solved conquassation formula energy-absorbing device effectively and be difficult to realize lightweight technical problem under the prerequisite of guaranteeing to absorb energy, be favorable to reducing the weight of assaulting energy-absorbing protector.
Description
Technical Field
The utility model belongs to the technical field of passive safety device, more specifically say, relate to an impact energy-absorbing protector.
Background
At present, an impact energy-absorbing protection device mainly completes an energy-absorbing task through collapse deformation of honeycomb material pieces, crushing pipes and the like, and after the deformation is completed, the honeycomb material pieces, the crushing pipes and the like can be stacked to a certain height to influence the stroke of the impact energy-absorbing protection device; in addition, the crushing strength of the conventional crushing type energy absorption device (which is one of the impact energy absorption protection devices) is generally within 35MPa, so that a large enough sectional area is required to ensure the crushing force value and the energy absorption, but the increase of the sectional area means the increase of the volume, the mass, the cost and the like, and is not favorable for realizing the light weight of the crushing type energy absorption device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an impact energy-absorbing protector, including but not limited to solving the conquassation formula energy-absorbing device and being difficult to realize lightweight technical problem under the prerequisite of guaranteeing the energy-absorbing.
In order to achieve the above object, the utility model provides an impact energy-absorbing protector, include:
the energy absorption cylinder is a high-strength and high-toughness anti-fatigue alloy material piece, a cylinder opening is formed in the first end of the energy absorption cylinder, and the second end of the energy absorption cylinder is closed;
the mounting flange is arranged on the first end of the energy absorption cylinder in a surrounding mode and is used for being connected with a protected object;
the second end of the guide pipe extends into the inner cavity of the energy absorbing cylinder from the cylinder opening of the energy absorbing cylinder; and
and the anti-collision plate is fixedly connected with the first end of the guide pipe.
Further, a first spacing hole has been seted up on the energy-absorbing section of thick bamboo, a second spacing hole has been seted up on the stand pipe, impact energy-absorbing protector still includes:
and the shearing pin is inserted in the first limiting hole and the second limiting hole.
Further, the end surface of the second end of the guide pipe is in contact with the inner surface of the second end of the energy absorption cylinder.
Further, the impact energy absorbing protector further comprises:
the energy absorption element is accommodated in the inner cavity of the energy absorption cylinder, and the end surface of the second end of the energy absorption element is in contact with the inner surface of the second end of the energy absorption cylinder; and
a baffle sandwiched between the second end of the guide tube and the first end of the energy absorber element.
Furthermore, the baffle is fixedly arranged in the inner hole of the guide pipe, and the first end of the energy absorption element extends into the inner hole of the guide pipe and abuts against the baffle.
Further, the energy absorber element is a piece of porous solid material.
Further, the impact energy absorbing protector further comprises:
and the elastic buffer is clamped between the second end of the guide pipe and the second end of the energy absorption cylinder.
Further, the elastic buffer includes:
the first end of the cylinder body is provided with an opening, and the second end of the cylinder body is abutted against the second end of the guide pipe;
the end cover is covered on the opening;
one end of the rod part of the piston rod penetrates through the end cover and abuts against the second end of the energy absorption cylinder; and
and the elastic daub is filled in the inner cavity of the cylinder body.
Further, the elastic buffer includes:
the first end of the cylinder body is provided with an opening, and the second end of the cylinder body is abutted against the second end of the guide pipe;
the end cover is covered on the opening;
one end of the rod part of the piston rod penetrates through the end cover and abuts against the second end of the energy absorption cylinder; and
and the spring is clamped between the second end of the cylinder body and the piston part of the piston rod.
Furthermore, the surface of the anti-collision plate is convexly provided with anti-climbing teeth or covered with an anti-slip layer.
The utility model provides an impact energy-absorbing protector's beneficial effect lies in: the energy absorption cylinder made of high-strength and high-toughness anti-fatigue alloy material is adopted, energy generated by impact force in the collision process is absorbed through tensile deformation of the energy absorption cylinder, and the yield strength and the elongation rate of the energy absorption cylinder are high, so that the length and the volume of the whole device can be correspondingly reduced on the premise of ensuring energy absorption, the technical problem that the crushing type energy absorption device is difficult to realize light weight on the premise of ensuring energy absorption is effectively solved, the weight of the impact energy absorption protection device is favorably reduced, and the energy absorption effect of the impact energy absorption protection device is enhanced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic perspective view of an impact energy absorption protection device according to an embodiment of the present invention;
fig. 2 is an axial cross-sectional schematic view of an impact energy absorption protection device according to an embodiment of the present invention;
fig. 3 is a schematic axial sectional view of an impact energy absorption protection device provided in accordance with an embodiment of the present invention after being subjected to an impact;
fig. 4 is an axial cross-sectional schematic view of an impact energy absorption protection device provided in the second embodiment of the present invention;
fig. 5 is an axial cross-sectional schematic view of an impact energy-absorbing protection device provided in the third embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-impact energy-absorbing protection device, 10-energy-absorbing cylinder, 20-mounting flange, 30-guide pipe, 40-crashproof plate, 50-shearing pin, 60-energy-absorbing element, 70-clapboard, 80-elastic buffer, 11-cylinder body, 12-reinforcing part, 13-first limiting hole, 31-second limiting hole, 32-limiting groove, 81-cylinder body, 82-end cover, 200-mounting hole, 400-anti-climbing tooth, 831-piston part 832, rod part.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that: when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the patent, and the specific meanings of the above terms will be understood by those skilled in the art according to specific situations. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The term "plurality" means two or more unless specifically limited otherwise.
It is right now that the utility model provides an impact energy-absorbing protector explains.
The first embodiment is as follows:
referring to fig. 1 to 3, the impact energy-absorbing protection device 1 includes an energy-absorbing cylinder 10, a mounting flange 20, a guide pipe 30 and an anti-collision plate 40, wherein the energy-absorbing cylinder 10 is a high-toughness anti-fatigue alloy material, that is, the elongation of the alloy material of the energy-absorbing cylinder 10 is greater than or equal to 70%, here, the energy-absorbing cylinder 10 is preferably made of Chang' e steel (including 0.02C:30Mn:3Al:3Si, etc.) with a yield strength of 550 to 1350MPa (megapascal) and an elongation of 80 to 110%, while the compression ratio of the current crushing energy-absorbing element is usually less than 70%, the first end of the energy-absorbing cylinder 10 has a cylinder mouth, and the second end of the energy-absorbing cylinder 10 is closed; the mounting flange 20 is annularly arranged at the first end of the energy absorption cylinder 10 and is used for connecting with the protected object, namely the mounting flange 20 can be welded on the protected object, or a fastener such as a bolt is arranged in the mounting hole 200 of the mounting flange 20 in a penetrating manner to fix the mounting flange 20 on the protected object; the second end of the guide pipe 30 extends into the inner cavity of the energy-absorbing cylinder 10 from the cylinder opening of the energy-absorbing cylinder 10; the crash plate 40 is fixedly coupled to the first end of the guide tube 30. It will be appreciated that the second end of the guide tube 30 can reciprocate along the interior of the energy absorber tube 10; the surface of the impact preventing plate 40 adjacent to the first end of the guide tube 30 is perpendicular to the axis of the guide tube 30, which is advantageous for increasing the area of the guide tube 30 receiving the forward impact force.
Preferably, the energy absorbing cylinder 10 comprises a cylinder body 11 and a reinforcing part 12, wherein the cylinder body 11 is connected with the reinforcing part 12, the reinforcing part 12 surrounds the cylinder opening, the wall thickness of the reinforcing part 12 is larger than that of the cylinder body 11, and the mounting flange 20 is sleeved on the reinforcing part 12 and is fixedly connected with the reinforcing part 12. When the impact energy-absorbing protection device 1 is impacted, the impact plate 40 is firstly impacted, then the impact plate 40 pushes the guide pipe 30 to further extend into the inner cavity of the energy-absorbing cylinder 10 until the second end of the guide pipe 30 is contacted with the second end of the energy-absorbing cylinder 10, as shown in fig. 3, then the second end of the guide pipe 30 pushes the second end of the energy-absorbing cylinder 10 to retreat, so that the cylinder body 11 is extended, and the energy generated by the impact force is absorbed through the tensile deformation of the cylinder body 11, so that the protected object is protected from being damaged. It should be further noted here that the tensile deformation of the cylinder body 11 can be divided into two stages, the first stage is an elastic deformation stage, and the second stage is a plastic deformation stage, if the energy generated by the impact force in the first stage is completely absorbed, once the external force is removed, the cylinder body 11 can be restored to the original size, and the replacement is not needed during the maintenance; if the energy from the impact force needs to be fully absorbed in the second stage, the cartridge body 11 cannot be restored to its original size and needs to be replaced for repair.
The utility model provides an impact energy-absorbing protector 1, an energy-absorbing section of thick bamboo 10 of being made by the tough antifatigue alloy material of height has been adopted, the tensile deformation through an energy-absorbing section of thick bamboo 10 absorbs the energy that collision in-process impact force produced, because the yield strength of an energy-absorbing section of thick bamboo 10 is high, the percentage elongation is big, consequently length and the volume of whole device can reduce correspondingly under the prerequisite of guaranteeing to absorb energy, thereby solved conquassation formula energy-absorbing device effectively and be difficult to realize lightweight technical problem under the prerequisite of guaranteeing to absorb energy, be favorable to reducing impact energy-absorbing protector 1's weight, impact energy-absorbing protector 1's energy-absorbing effect has been strengthened.
Further, referring to fig. 2 and 3, in the present embodiment, a first limiting hole 13 is formed in the energy absorbing cylinder 10, and a second limiting hole 31 is formed in the guide tube 30, and the impact energy absorbing protection device 1 further includes a shear pin 50, wherein the shear pin 50 is inserted into the first limiting hole 13 and the second limiting hole 31. Specifically, the first limiting hole 13 penetrates through the cylinder wall of the reinforcing part 12 of the energy absorption cylinder 10, the second limiting hole 31 penetrates through the pipe wall of the guide pipe 30, in an initial state, the first limiting hole 13 is overlapped with the second limiting hole 31, and the shear pin 50 penetrates through the first limiting hole and the second limiting hole, so that the guide pipe 30 is effectively prevented from being separated from the energy absorption cylinder 10; when the impact energy-absorbing protection device 1 is impacted and the impact force exceeds a certain threshold value, the shear pin 50 is disconnected, the second end of the guide pipe 30 is further pushed into the inner cavity of the energy-absorbing cylinder 10, the second end of the energy-absorbing cylinder 10 is further pushed to retreat, and the cylinder body 11 is driven to stretch and deform to absorb the energy generated by the impact force.
Further, referring to fig. 2, in the present embodiment, an end surface of the second end of the guide tube 30 contacts an inner surface of the second end of the energy absorbing cylinder 10, that is, in an initial state, the second end of the guide tube 30 already contacts the second end of the energy absorbing cylinder 10, once the shear pin 50 is disconnected, the second end of the guide tube 30 can push the second end of the energy absorbing cylinder 10 to retreat, and drive the cylinder body 11 to perform tensile deformation to absorb energy generated by an impact force, so that collision between the second end of the guide tube 30 and the second end of the energy absorbing cylinder 10 before deformation is avoided, and stability of the energy absorbing process is improved.
Optionally, referring to fig. 1, in this embodiment, the anti-climbing teeth 400 are convexly disposed on the surface of the anti-collision plate 40, or the surface of the anti-collision plate 40 is covered with the anti-slip layer, that is, the anti-climbing teeth 400 are convexly disposed on the surface of the first end of the anti-collision plate 40 away from the guide tube 30 or covered with the anti-slip layer. The phenomenon of riding and climbing can be effectively prevented when two protected objects loaded with the impact energy-absorbing protection device 1 collide with each other, the phenomenon of riding and climbing is avoided to weaken the energy-absorbing effect of the impact energy-absorbing protection device 1, and therefore the protection effect of the protected objects is improved.
Example two:
referring to fig. 4, the impact-absorbing protection device provided in this embodiment is substantially the same as the first embodiment, and the main differences are as follows: the impact energy-absorbing protection device 1 further comprises an energy-absorbing element 60 and a baffle 70, wherein the energy-absorbing element 60 is accommodated in the inner cavity of the energy-absorbing cylinder 10, the end surface of the second end of the energy-absorbing element 50 is in contact with the inner surface of the second end of the energy-absorbing cylinder 10, and the baffle 70 is clamped between the second end of the guide pipe 30 and the first end of the energy-absorbing element 60. Specifically, the baffle 70 is blocked between the second end of the guide tube 30 and the first end of the energy-absorbing element 60, and abuts against both the second end of the guide tube 30 and the first end of the energy-absorbing element 60, so that the guide tube 30 can uniformly transmit the impact force to the energy-absorbing element 60 through the baffle 70; the energy absorbing element 60 is a porous solid material, that is, the energy absorbing element 60 is made of porous solid materials such as aluminum foil honeycomb material, stainless steel foil honeycomb material, acrylic corrugated paper, foamed aluminum and the like, so that the energy absorbing element 60 has the characteristics of light weight, good energy absorbing effect and the like, and the overall weight of the impact energy absorbing protection device 1 is favorably reduced; when the impact energy-absorbing protection device 1 is impacted, after the shear pin 50 is disconnected, the energy-absorbing cylinder 10 firstly generates elastic deformation, the energy generated by impact force is absorbed through the elastic deformation, when the impact force value reaches the crushing value of the energy-absorbing element 60, the energy-absorbing element 60 starts to collapse and deform, the energy generated by the impact force is absorbed through the elastic deformation of the energy-absorbing cylinder 10 and the collapsing deformation of the energy-absorbing element 60 together, after the energy-absorbing element 60 reaches the maximum compression stroke, the energy-absorbing cylinder 10 then generates plastic deformation, and the residual energy generated by the impact force is absorbed through the plastic deformation, so that the impact caused by collision is eliminated through multi-stage energy absorption, the energy absorption of the impact energy-absorbing protection device 1 is effectively increased, and the energy absorption effect of the impact energy-absorbing protection device 1 is improved.
Further, referring to FIG. 4, in this embodiment, the baffle 70 is fixedly disposed within the inner bore of the guide tube 30, while the first end of the energy absorbing element 60 extends into the inner bore of the guide tube 30 and abuts against the baffle 70. Specifically, a limiting groove 32 is formed in the second end of the guide tube 30, the limiting groove 32 is communicated with an inner hole of the guide tube 30, the limiting groove 32 extends from the end face of the second end of the guide tube 30 to the middle of the guide tube 30 along the axial direction of the guide tube 30, the partition plate 70 is accommodated in the limiting groove 32, the cross-sectional profile of the energy absorbing element 60 is matched with that of the limiting groove 32, and the first end of the energy absorbing element 60 extends into the limiting groove 32 to abut against the partition plate 70 on the bottom of the limiting groove 32. When the energy absorbing element 60 is deformed due to collapse, the energy absorbing element 60 is completely accommodated in the limiting groove 32, so that the impact of the stacked energy absorbing elements 60 on the stroke between the guide tube 30 and the energy absorbing tube 10 is effectively avoided.
Example three:
referring to fig. 5, the impact-absorbing protection device provided in this embodiment is substantially the same as the first embodiment, and the main differences are as follows: the impact protection device 1 further comprises an elastic bumper 80, wherein the elastic bumper 80 is clamped between the second end of the guide pipe 30 and the second end of the energy absorbing cylinder 10. Specifically, the elastic buffer 80 may be an elastic cement buffer, a spring buffer, a hydraulic buffer, etc., when the impact energy-absorbing protection device 1 is impacted and the shear pin 50 is disconnected, the energy-absorbing cylinder 10 and the elastic buffer 80 respectively generate elastic deformation and compression deformation, and the energy generated by the impact force is absorbed together through the elastic deformation of the energy-absorbing cylinder 10 and the compression deformation of the elastic buffer 80 until the elastic buffer 80 reaches the maximum compression stroke, and then the energy-absorbing cylinder 10 generates plastic deformation, and the residual energy generated by the impact force is absorbed through the plastic deformation, so that the impact caused by the collision is eliminated through multi-stage energy absorption, the energy absorption of the impact energy-absorbing protection device 1 is effectively increased, and the energy absorption effect of the impact energy-absorbing protection device 1 is improved.
Optionally, in this embodiment, the elastic buffer 80 may include a cylinder 81, an end cap 82, a piston rod, and elastic cement, wherein the cylinder 81 has an opening in a first direction, a second end of the cylinder 81 abuts against a second end of the guide tube 30, the end cap 82 covers the opening of the cylinder 81, one end of the rod portion 832 of the piston rod penetrates through the end cap 82 and abuts against a second end of the energy absorbing cylinder 10, and the elastic cement is filled in an inner cavity of the cylinder 81. Specifically, the piston portion 831 of the piston rod is accommodated in a sealed cavity formed by the cylinder 81 and the end cover 82 in an enclosing manner, a throttling gap is formed between the piston portion 831 and the cylinder 81, one end of the rod portion 832 of the piston rod abuts against the inner surface of the second end of the energy absorbing cylinder 10, the other end of the rod portion 832 is connected with the piston portion 831, and the elastic cement is filled between the second end of the cylinder 81 and the piston portion 831. When the impact energy-absorbing protection device 1 is impacted, the energy-absorbing cylinder 10 firstly generates elastic deformation, the energy generated by impact force is absorbed through the elastic deformation, meanwhile, the guide pipe 30 firstly pushes the cylinder body 81 to move towards the direction close to the second end of the energy-absorbing cylinder 10, the second end of the cylinder body 81 and the piston part 831 are driven to extrude the elastic daub, at the moment, the elastic daub slowly flows into the space between the piston part 831 and the end cover 82 from the throttling gap, the energy generated by the impact force is absorbed through the throttling effect until the elastic daub reaches the maximum compression stroke, the energy-absorbing cylinder 10 then generates plastic deformation, and the residual energy generated by the impact force is absorbed through the plastic deformation, so the impact caused by collision is eliminated through multi-stage energy absorption, and the energy absorption of the impact energy-absorbing protection device 1 is effectively increased. Of course, according to specific situations and requirements, in other embodiments of the present invention, a spring may be used instead of the elastic daub, so that the spring is clamped between the second end of the cylinder 81 and the piston 831, which is not limited herein.
Further, referring to fig. 5, in the present embodiment, the second end of the cylinder 81 extends into the inner hole of the guide tube 30. Specifically, a limiting groove 32 is formed in the second end of the guide tube 30, the limiting groove 32 is communicated with an inner hole of the guide tube 30, the limiting groove 32 extends from the end face of the second end of the guide tube 30 to the middle of the guide tube 30 along the axial line of the guide tube 30, the cross section profile of the cylinder body 81 is matched with the cross section profile of the limiting groove 32, and the second end of the cylinder body 81 extends into the limiting groove 32 and abuts against the bottom of the limiting groove 32. When the elastic buffer 80 is compressed and deformed, the elastic buffer 80 is completely accommodated in the limiting groove 32, so that the elastic buffer 80 is effectively prevented from influencing the stroke between the guide tube 30 and the energy absorbing tube 10.
Example four:
the impact energy-absorbing protection device provided by the embodiment is basically the same as the third embodiment, and the main difference is as follows: the impact energy-absorbing protection device 1 further comprises a partition plate 70, the partition plate 70 is clamped between the second end of the guide pipe 30 and the extending end of the piston rod, and the second end of the cylinder body 10 abuts against the second end of the energy-absorbing cylinder 10. Specifically, one end surface of the diaphragm 70 abuts against the second end of the guide tube 30, one end of the rod portion 832 of the piston rod extends out of the cylinder 81 after penetrating through the end cover 82 and abuts against the other end surface of the diaphragm 70, and the end surface of the second end of the cylinder 10 contacts with the inner surface of the second end of the energy absorbing cylinder 10. When the impact energy-absorbing protection device 1 is impacted, the energy-absorbing cylinder 10 firstly generates elastic deformation, absorbs the energy generated by the impact force through the elastic deformation, while the guide tube 30 pushes the partition 70 to move the piston rod toward the second end of the cylinder 81, so that the piston 831 and the second end of the cylinder 81 compress the elastic daub, and at this time, the elastic daub slowly flows into between the piston 831 and the end cover 82 from the throttling gap, part of energy generated by impact force is absorbed through the throttling effect until the elastic daub reaches the maximum compression stroke, the energy absorption cylinder 10 then generates plastic deformation, the residual energy generated by the impact force is absorbed through plastic deformation, so that the impact caused by collision is eliminated through multi-stage energy absorption, the energy absorption of the impact energy absorption protection device 1 is effectively increased, and the energy absorption effect of the impact energy absorption protection device 1 is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Impact energy-absorbing protector, its characterized in that includes:
the energy absorption cylinder is a high-strength and high-toughness anti-fatigue alloy material piece, a cylinder opening is formed in the first end of the energy absorption cylinder, and the second end of the energy absorption cylinder is closed;
the mounting flange is arranged on the first end of the energy absorption cylinder in a surrounding mode and is used for being connected with a protected object;
the second end of the guide pipe extends into the inner cavity of the energy absorbing cylinder from the cylinder opening of the energy absorbing cylinder; and
and the anti-collision plate is fixedly connected with the first end of the guide pipe.
2. The device of claim 1, wherein the energy-absorbing cylinder has a first limiting hole, the guide tube has a second limiting hole, and the device further comprises:
and the shearing pin is inserted in the first limiting hole and the second limiting hole.
3. An impact protector according to claim 2, characterized in that the end surface of the second end of the guide tube is in contact with the inner surface of the second end of the energy cylinder.
4. The impact protector of claim 2, further comprising:
the energy absorption element is accommodated in the inner cavity of the energy absorption cylinder, and the end surface of the second end of the energy absorption element is in contact with the inner surface of the second end of the energy absorption cylinder; and
a baffle sandwiched between the second end of the guide tube and the first end of the energy absorber element.
5. The apparatus of claim 4, wherein the baffle is fixedly disposed within the inner bore of the guide tube, and wherein the first end of the energy absorber element extends into the inner bore of the guide tube and abuts the baffle.
6. An impact protector according to claim 4, characterized in that the energy-absorbing element is a piece of porous solid material.
7. The impact protector of claim 2, further comprising:
and the elastic buffer is clamped between the second end of the guide pipe and the second end of the energy absorption cylinder.
8. The impact protector of claim 7, wherein said spring bumper comprises:
the first end of the cylinder body is provided with an opening, and the second end of the cylinder body is abutted against the second end of the guide pipe;
the end cover is covered on the opening;
one end of the rod part of the piston rod penetrates through the end cover and abuts against the second end of the energy absorption cylinder; and
and the elastic daub is filled in the inner cavity of the cylinder body.
9. The impact protector of claim 7, wherein said spring bumper comprises:
the first end of the cylinder body is provided with an opening, and the second end of the cylinder body is abutted against the second end of the guide pipe;
the end cover is covered on the opening;
one end of the rod part of the piston rod penetrates through the end cover and abuts against the second end of the energy absorption cylinder; and
and the spring is clamped between the second end of the cylinder body and the piston part of the piston rod.
10. The device according to any one of claims 1 to 9, wherein the surface of the crash panel is provided with anti-creeping teeth or covered with an anti-slip layer.
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| CN201921159357.9U CN210423556U (en) | 2019-07-22 | 2019-07-22 | Impact energy-absorbing protection device |
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| CN110388405A (en) * | 2019-07-22 | 2019-10-29 | 深圳市乾行达科技有限公司 | Impact energy-absorbing protective device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110388405A (en) * | 2019-07-22 | 2019-10-29 | 深圳市乾行达科技有限公司 | Impact energy-absorbing protective device |
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