CN210191240U - Impact overload protection device for explosion-proof seat - Google Patents
Impact overload protection device for explosion-proof seat Download PDFInfo
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- CN210191240U CN210191240U CN201920903780.9U CN201920903780U CN210191240U CN 210191240 U CN210191240 U CN 210191240U CN 201920903780 U CN201920903780 U CN 201920903780U CN 210191240 U CN210191240 U CN 210191240U
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- hole
- explosion
- proof seat
- overload protection
- hollow screw
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Abstract
The utility model discloses an impact overload protection device for explosion-proof seat, include: the base, the lathe tool, the sleeve pipe, locking hollow screw and energy-absorbing pole, wherein, the middle part of base is provided with two at least rank cylindrical through-holes, the inner wall that is located the first order cylindrical through-hole of upper portion is provided with the internal thread, the internal diameter of the cylindrical through-hole of second order is less than the internal diameter of first order cylindrical through-hole, the lathe tool is a plurality of, the interval sets up in the cylindrical through-hole of second order, the top of lathe tool is located to the sleeve pipe pressure, locking hollow screw screws up on the base, the upper portion and the bottom fixed connection of explosion-proof seat chair of energy-absorbing pole, the lower part is through the through-hole at locking hollow screw middle part in the through-hole at base middle part inserts. This an impact overload protection device for explosion-proof seat can disperse, consume the processing to external impact energy through the deformation and the cutting heat production of energy-absorbing pole when explosion-proof seat receives short-time overload impact.
Description
Technical Field
The utility model relates to an explosion-proof seat field provides an impact overload protection device for explosion-proof seat very much.
Background
In the field of explosion-proof seats, a protection device for overload impact is basically blank, but in practical application, the explosion-proof seat has the possibility of being subjected to overload impact, and if the explosion-proof seat is subjected to overload impact, physical injury can be caused to passengers on the explosion-proof seat.
Therefore, it is an urgent need to develop a device for protecting an explosion-proof seat in the event of a short-time impact overload to disperse the impact force applied to the seat.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an impact overload protection device for explosion-proof seat to solve the problem that can not effectively disperse the impact force of acting on the seat under the condition that explosion-proof seat receives short-time impact overload among the prior art.
The utility model provides a technical scheme is: an impact overload protection device for an explosion proof seat, comprising: the energy-absorbing seat comprises a base, a turning tool, a sleeve, a locking hollow screw and an energy-absorbing rod, wherein the middle part of the base is provided with at least two-step cylindrical through holes from top to bottom, the inner wall of a first-step cylindrical through hole positioned at the uppermost part is provided with internal threads, the inner diameter of a second-step cylindrical through hole positioned at the lower part of the first-step cylindrical through hole is smaller than that of the first-step cylindrical through holes, a plurality of turning tools are arranged in the second-step cylindrical through holes at intervals, the sleeve is positioned in the second-step cylindrical through holes and pressed above the turning tool so as to stabilize the turning tool, the periphery of the locking hollow screw is provided with external threads matched with the internal threads in the first-step cylindrical through holes, the locking hollow screw is screwed on the base through the matching of the internal threads and the external threads, the sleeve is locked, the upper part of, and under a natural state, the bottom of the locking hollow screw abuts against a tool bit of the turning tool.
Preferably, an elastic washer is further arranged between the locking hollow screw and the base.
Further preferably, the energy absorbing rod is a steel rod.
Preferably, the energy absorption rod is in an inverted cone shape.
Further preferably, the energy absorbing bar has a cone angle range of less than 7 degrees.
Further preferably, the energy absorbing rod has a cone angle of 5 degrees.
The utility model provides an impact overload protection device for explosion-proof seat for the explosion-proof seat of auxiliary protection, during the use, fix it in the below of explosion-proof seat, specifically: the base passes through rag bolt rigidity to be fixed on armoured car bottom plate, and the structure of explosion-proof seat need not to change, as long as with the explosion-proof seat of armoured car bottom plate non-rigid contact can, if: the anti-explosion seat is characterized in that a buffer device (such as a spring) is arranged between the anti-explosion seat and an armored car bottom plate, when the armored car meets thunder, impact load firstly acts on the armored car bottom plate and is transmitted upwards, a base fixed on the armored car bottom plate can generate vertical displacement upwards, at the moment, an energy absorption rod fixedly connected with the anti-explosion seat keeps still due to inertia, and therefore a turning tool arranged in a second-order cylindrical through hole can cut the energy absorption rod which is abutted against the turning tool, the turning tool deforms and generates heat, and therefore a part of the impact load is released, and the effect of protecting the anti-explosion seat is achieved.
The utility model provides an impact overload protection device for explosion-proof seat can protect the personnel on the seat when explosion-proof seat receives the short time impact overload, and deformation and the cutting heat production through the energy-absorbing pole can disperse, consume the processing to external impact energy.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments:
fig. 1 is a schematic structural diagram of an impact overload protection device for an explosion-proof seat provided by the present invention;
FIG. 2 is a top view of the impact overload protection apparatus for an explosion proof seat provided by the present invention;
fig. 3 is a schematic structural view of the locking hollow screw.
Detailed Description
The invention will be further explained below with reference to specific embodiments, without limiting the invention.
As shown in fig. 1 and 2, the utility model provides an impact overload protection device for explosion-proof seat, including: the base 1, the lathe tool 2, the sleeve 3, the locking hollow screw 4 and the energy-absorbing rod 5, wherein, the middle part of the base 1 is provided with at least two-step cylindrical through holes from top to bottom, the inner wall of the first-step cylindrical through hole positioned at the uppermost part is provided with internal threads, the inner diameter of the second-step cylindrical through hole positioned at the lower part of the first-step cylindrical through hole is smaller than that of the first-step cylindrical through hole, the lathe tools 2 are multiple, the turning tools are arranged in the second-step cylindrical through hole at intervals, the sleeve 3 is positioned in the second-step cylindrical through hole and is pressed above the lathe tool 2 to stabilize the lathe tool 2, as shown in figure 3, the outer periphery of the locking hollow screw 4 is provided with external threads matched with the internal threads in the first-step cylindrical through hole, through the matching of the internal threads and the external threads, the locking hollow screw 4 is screwed on, the lower part is inserted into the through hole in the middle of the base 1 through the through hole in the middle of the locking hollow screw rod 4, and the bottom of the locking hollow screw rod 4 is abutted to the tool bit of the turning tool 2 in a natural state.
This an impact overload protection device for explosion-proof seat for the explosion-proof seat of supplementary protection, when using, fixes it in the below of explosion-proof seat, specifically: the base passes through rag bolt rigidity to be fixed on armoured car bottom plate, and the structure of explosion-proof seat need not to change, as long as with the explosion-proof seat of armoured car bottom plate non-rigid contact can, if: the top of the energy absorption rod is fixed at the lower part of the explosion-proof seat, when the armored vehicle encounters thunder, impact load is firstly applied to the bottom plate of the armored vehicle and is upwards transmitted, the base fixed on the bottom plate of the armored vehicle can upwards generate vertical displacement, at the moment, the energy absorption rod fixedly connected with the explosion-proof seat is kept still due to inertia, and therefore a turning tool arranged in the second-stage cylindrical through hole can cut the energy absorption rod which is abutted against the turning tool, the turning tool deforms and generates heat, a part of the impact load is released, and the effect of protecting the explosion-proof seat is achieved.
As the improvement of the technical scheme, an elastic washer 6 is also arranged between the locking hollow screw 4 and the base 1.
As an improvement of the technical scheme, the energy absorption rod 5 is a steel rod, the material is preferably 4340 steel, the energy absorption rod 5 is preferably in an inverted cone shape, and the cone angle ranges from 0 degree to 7 degrees, preferably 5 degrees.
The embodiments of the present invention are written in a progressive manner, emphasizing the differences of the various embodiments, and similar parts can be referred to each other.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. An impact overload protection device for an explosion proof seat, comprising: the energy-absorbing device comprises a base (1), turning tools (2), a sleeve (3), a locking hollow screw (4) and an energy-absorbing rod (5), wherein the middle part of the base (1) is provided with at least two-step cylindrical through holes from top to bottom, the inner wall of the first-step cylindrical through hole positioned at the uppermost part is provided with internal threads, the inner diameter of the second-step cylindrical through hole positioned at the lower part of the first-step cylindrical through hole is smaller than that of the first-step cylindrical through hole, the turning tools (2) are arranged in the second-step cylindrical through holes at intervals, the sleeve (3) is positioned in the second-step cylindrical through hole and pressed above the turning tools (2) so as to stabilize the turning tools (2), the periphery of the locking hollow screw (4) is provided with external threads matched with the internal threads in the first-step cylindrical through holes, and the locking hollow screw (4, with locking sleeve pipe (3), the upper portion of energy-absorbing pole (5) and the bottom fixed connection of explosion-proof seat, the lower part is through the through-hole at locking hollow screw rod (4) middle part in inserting the through-hole at base (1) middle part, and under natural state, the bottom of locking hollow screw rod (4) offsets with the tool bit of lathe tool (2).
2. An impact overload protection apparatus for an explosion proof seat as claimed in claim 1, wherein: an elastic washer (6) is arranged between the locking hollow screw rod (4) and the base (1).
3. An impact overload protection apparatus for an explosion proof seat as claimed in claim 1, wherein: the energy absorption rod (5) is a steel rod.
4. An impact overload protection apparatus for an explosion proof seat as claimed in claim 1, wherein: the energy absorption rod (5) is in an inverted cone shape.
5. An impact overload protection apparatus for an explosion proof seat as claimed in claim 4, wherein: the cone angle range of the energy absorption rod (5) is less than 7 degrees.
6. An impact overload protection apparatus for an explosion proof seat as claimed in claim 5, wherein: the cone angle of the energy absorption rod (5) is 5 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920903780.9U CN210191240U (en) | 2019-06-17 | 2019-06-17 | Impact overload protection device for explosion-proof seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920903780.9U CN210191240U (en) | 2019-06-17 | 2019-06-17 | Impact overload protection device for explosion-proof seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210191240U true CN210191240U (en) | 2020-03-27 |
Family
ID=69870698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920903780.9U Active CN210191240U (en) | 2019-06-17 | 2019-06-17 | Impact overload protection device for explosion-proof seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210191240U (en) |
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2019
- 2019-06-17 CN CN201920903780.9U patent/CN210191240U/en active Active
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