CN220650053U - Scram mode triggers frock - Google Patents

Abstract

The utility model discloses a sudden stop mode triggering tool, and relates to a sudden stop mode triggering tool which can be applied to sudden stop braking tests of automatic driving vehicles; comprising the following steps: the impact rod is fixedly arranged, and the impact rod is fixedly arranged in a manner that the impact rod can ensure that the impact rod provides sufficient reaction force for the contact edge to trigger the contact edge when bearing impact; and a buffer member fixedly connected to the impact surface of the impact bar; the buffer piece is arranged on the impact rod, so that the edge touching mechanism of the automobile can be protected from damage during impact or the damage probability of the edge touching mechanism is reduced, the edge touching mechanism is effectively protected, and the service life of the edge touching mechanism is prolonged; the emergency stop mode triggering tool provided by the utility model is simple in structure and suitable for popularization.

Description

Scram mode triggers frock

Technical Field

The utility model relates to a sudden stop mode triggering tool, in particular to a sudden stop mode triggering tool which can be applied to sudden stop braking test of an automatic driving vehicle.

Background

The drive-by-wire chassis is through installing the limit that touches at autopilot vehicle front end and rear end, when the vehicle bumps, touches limit switch and is triggered, autopilot vehicle emergency braking and outage to protect the vehicle from secondary collision. In order to ensure that the emergency braking and power-off function of an autonomous vehicle is normal, it is often necessary to test the emergency braking and power-off function of the vehicle before it leaves the factory. The test is completed by matching a touch edge mechanism arranged on an automatic driving vehicle with a trigger tool for providing a trigger force for the touch edge mechanism. When the edge touching mechanism impacts the triggering tool, the triggering tool gives a reaction force to the edge touching mechanism, and after the reaction force is sensed by a sensor in the edge touching mechanism, the emergency braking and the power failure of the automatic driving vehicle are triggered.

But the existing trigger tool mainly adopts an impact deceleration strip. But the deceleration strip is sharp, can harm the touch limit switch in striking. It is desirable to provide a new trigger tool to avoid damage to the edge mechanism during testing.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the utility model provides a scram mode triggers frock, it has solved the technical problem who touches limit mechanism and easily damage when the test.

The technical problems to be solved by the utility model are realized by adopting the following technical scheme:

scheme one: an emergency stop mode triggering tool, comprising: the impact rod is fixedly arranged, and the impact rod is fixedly arranged in a manner that the impact rod can ensure that the impact rod provides sufficient reaction force for the contact edge to trigger the contact edge when bearing impact; and a buffer member fixedly connected to the impact surface of the impact rod.

The buffer piece is arranged on the impact rod, so that the edge touching mechanism of the automobile can be protected from damage during impact or the damage probability of the edge touching mechanism is reduced. The emergency stop mode triggering tool provided by the utility model is simple in structure and suitable for popularization.

Scheme II: based on the first scheme, in order to reduce damage to the edge touching mechanism by the test of the emergency braking and power-off function, the shape of the impact surface and the buffer piece are further limited. The method comprises the following steps:

preferably, the impact surface of the impact rod is an arc surface, and the impact surface has no edges and corners, so that the damage to the edge contact mechanism caused by the test of the emergency braking and power-off functions is reduced.

Preferably, the buffer piece is rubber pad or silica gel foam, has excellent shock absorption, and is favorable for reducing impact acceleration received by triggering instant thixotropic so as to protect touch edges.

Scheme III: based on scheme one, in order to be convenient for adjust the position that triggers the frock according to the test demand, still set up the base. The method comprises the following steps:

preferably, the impact rod is fixedly arranged on the base, and the weight of the base is set so that the base cannot move when the impact rod is impacted. Through setting up the base, can remove to the optional position with triggering the frock, the position of conveniently triggering the frock according to the adjustment of test demand. During testing, the base is placed on the ground of a testing site. Through setting up the base, can remove the frock of triggering to optional position, for example when changing the test runway, need reset the frock of triggering, only need after setting up the base with whole the frock of triggering transport to the test runway department after changing and adjust the frock of triggering make the striking face just to the impact direction can.

Preferably, the base is provided with a thread groove, the outer surface of the striking rod is provided with external threads, and the striking rod is inserted into the thread groove and is in threaded connection with the thread groove through the external threads. The striking pole is connected with the base screw thread, is convenient for dismantle the striking pole from the base, is convenient for change the striking pole of damage.

Scheme IV: based on scheme one, in order to avoid striking pole and touching limit mechanism secondary striking, still set up base and extension spring, specifically do:

preferably, one end of the striking rod is propped against the base; the two ends of the impact rod are fixedly connected with the base, and the connecting point of the impact rod and the tension spring is a distance away from the bottom end of the impact rod; the device also comprises a force balance piece used for restraining the impact rod so as to prevent the impact rod from rotating towards the impact direction under the action of tension of the tension spring; the supporting force of the base, the tension force of the tension spring and the restraining force of the force balance piece balance the force mutually so as to ensure that the impact rod is fixed on the base; and the tension of the tension spring can ensure that the striking rod provides sufficient reaction force for the contact edge to trigger the contact edge when the striking rod is impacted.

After the impact occurs until the impact rod rotates until the axial lead of the impact rod coincides with the axial lead of the tension spring, the impact force drives the impact rod to rotate around the joint of the impact rod and the tension spring; after the impact rod rotates until the axial lead of the impact rod coincides with the axial lead of the tension spring, the tension force of the tension spring forces the impact rod to continuously topple until the top of the impact rod is jointed with the base, and the top of the impact rod is always jointed with the base under the action of the tension force of the tension spring, so that the impact rod is ensured not to secondarily impact with the edge touching mechanism due to rebound.

Preferably, the force balance member is an auxiliary support plate fixedly connected to the striking rod, and the auxiliary support plate prevents the striking rod from rotating toward the striking direction by abutting against a position between the striking rod and the tension spring.

Preferably, a rubber buffer pad for receiving the impact rod falling reversely towards the impact direction is fixedly connected to the base, so that the impact noise volume and the possibility of damage to the top end of the impact rod are reduced.

Preferably, the upper surface of the base is provided with a linear guide chute, the width dimension of the guide chute in the chute is larger than the width dimension of the notch, and the guide chute extends along the impacting direction; the sliding block is arranged in the groove of the guide chute in a sliding way, and one end, far away from the impact rod, of the tension spring penetrates through the notch of the guide chute and is fixedly connected with the sliding block. The impact rod, the force balance piece, the tension spring and the sliding block are taken as a whole to move the distance of the length of the sliding groove along the impact direction, so that the buffer distance between the impact rod and the edge touching mechanism is formed, the impact force of the impact rod and the edge touching mechanism during touching can be reduced, and the possibility of damage of the impact rod and the edge touching mechanism due to impact is reduced

Scheme IV: based on scheme IV, in order to avoid striking pole and base secondary striking, still set up and hug tightly the piece for at striking pole and the contact of base the moment, with avoid secondary noise and striking pole secondary damage to produce. The method comprises the following steps:

preferably, the enclasping piece comprises a mother magnetic seat and a child magnetic block which are mutually attracted, wherein the mother magnetic seat is fixedly arranged on the base, and the child magnetic block is fixedly arranged on the impact rod; when the impact rod is contacted with the base, the main magnetic seat and the sub magnetic blocks are mutually attracted to tightly hold the impact rod. The master magnetic seat and the slave magnetic block have simple structures and are convenient to use.

Drawings

FIG. 1 is a schematic diagram of a front view structure of an impact rod fixedly mounted on the ground;

FIG. 2 is a schematic top view of the impact bar fixedly mounted on the ground;

FIG. 3 is a schematic diagram of the structure from the front view of the striker rod screwed onto the base;

FIG. 4 is an enlarged schematic view of the structure shown in FIG. 3A;

FIG. 5 is a schematic view of the connection structure of the striker rod, base, tension spring, etc.;

FIG. 6 is a schematic view of the structure of the impact rod as it rotates about its point of attachment to the tension spring to coincide with the axis of the tension spring;

FIG. 7 is a schematic view of the structure of the striker rod as it rotates about its point of attachment to the tension spring to engage the upper surface of the base;

FIG. 8 is a schematic diagram showing the positional relationship between a pair of tension springs and a striker rod in a top view;

FIG. 9 is a schematic diagram showing the positional relationship between a pair of tension springs and a striker rod in a top view;

FIG. 10 is a schematic diagram of the structure of a water sac for thoracocentesis training, which is a schematic diagram of the connection structure of the components such as the impact rod, the base, the tension spring, the guide chute and the slide block;

FIG. 11 is an enlarged schematic view of the structure shown at B in FIG. 10;

FIG. 12 is a schematic view of the structure of the impact bar moving from one end of the guide chute to the other end during impact;

FIG. 13 is a schematic view of the structure of the impact rod as it rotates about its point of attachment to the tension spring to coincide with the axis of the tension spring;

FIG. 14 is a schematic view of the structure of the striker rod as it rotates about its point of attachment to the tension spring to engage the upper surface of the base;

fig. 15 is a schematic view of the connection structure of the tension spring, the guide chute and the slider in a top view;

fig. 16 is an enlarged schematic view of the structure at C in fig. 15.

In the figure: 1. a striker rod; 101. an impact surface; 2. a buffer member; 3. a base; 4. a thread groove; 5. an external thread; 6. a tension spring; 7. an auxiliary supporting plate; 8. a rubber cushion pad; 9. a guide chute; 10. a slide block; 11. a master magnetic base; 12. a sub-magnetic block.

Detailed Description

The utility model will be further described with reference to the following embodiments in order to make the technical means, the creation features, the achievement of the objects and the effects of the utility model easy to understand.

In the description of the present utility model, it should be understood that terms such as "transverse", "longitudinal", "end", "edge", "side wall", "upper", "lower", "right above", "describing the technical solution of the present utility model and simplifying the description, are not intended to indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as indicating the orientation or positional relationship of the limiting surfaces", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc. of the present utility model based on the orientation or positional relationship shown in the drawings for convenience of description only.

As shown in fig. 1, this embodiment provides an emergency stop mode triggering tool, including:

the fixed striking pole 1 that sets up, the fixed mode of striking pole 1 can be for guaranteeing that striking pole 1 possesses and provides sufficient reaction force in order to trigger the touch limit for the touch limit when bearing the striking, touches limit and triggers the scram mode, realizes that the autopilot vehicle emergency braking and outage.

The fixing mode can be as follows: as shown in fig. 1 and 2, the bottom end of the striking rod 1 is fixedly connected to the ground by means of bolts or welding to achieve that the striking rod 1 is kept provided with a sufficient reaction force to the contact edge to trigger the contact edge when being impacted.

The striking rod 1 is arranged in an upright mode or an inclined mode so as to realize that the striking rod 1 has a certain height, and thus the striking rod 1 can be contacted with the edge contact mechanism of the automobile.

As shown in fig. 1 and 2, the bumper 2 is fixedly attached to the striking face 101 of the striking rod 1. The buffer part 2 is rubber pad or silica gel foam.

During the test, the impact direction is just right to cushioning member 2, and the mechanism of touching the limit of car and cushioning member 2 direct contact can protect the mechanism of touching the limit of car not damaged or reduce the probability that touching the mechanism and receive the damage when striking.

In other embodiments, as shown in fig. 2, the striking surface 101 of the striking rod 1 is an arc surface, and the striking surface 101 has no corner, so as to further reduce damage to the edge contact mechanism caused by testing.

As shown in fig. 3, in some other embodiments, the method further includes: the base 3, the striking pole 1 is fixed on the base 3 through the bolt or with the welded mode, the weight of base 3 sets up to the base 3 when bearing the striking does not remove to realize striking pole 1 provides sufficient reaction force to touch the limit in order to trigger and touch the limit. Through setting up base 3, can remove to optional position with triggering the frock, conveniently adjust the position of triggering the frock according to the test demand. During testing, the base 3 is placed on the ground of a testing site.

As shown in fig. 4, in some other embodiments, a threaded groove 4 is formed on the base 3, an external thread 5 is formed on the outer surface of the striking rod 1, the striking rod 1 is inserted into the threaded groove 4, and the striking rod 1 is in threaded connection with the threaded groove 4 through the external thread 5. The striking rod 1 is in threaded connection with the base 3, so that the striking rod 1 is conveniently detached from the base 3, and the damaged striking rod 1 is conveniently replaced.

As shown in fig. 5, in other embodiments, a base 3 is also included; the bottom end of the striking rod 1 is contacted with the upper surface of the base 3;

the mirror symmetry sets up the extension spring 6 in the both sides of striking face 101, and the one end and the striking pole 1 fixed connection of extension spring 6, the other end and the base 3 fixed connection of extension spring 6.

The connection point of the tension spring 6 to the striker rod 1 is at a distance from the bottom end of the striker rod 1 to form a triangular support structure between the striker rod 1, the base and the tension spring 6 as shown by the broken line in fig. 5. The triangular force structure can maintain the stability of the striker rod 1 placed on the base.

And establishing a three-dimensional coordinate system by taking the impact direction as the x-axis direction. As shown in fig. 8, when the projection of the axial lead of the tension spring on the base is different from the impact direction, the component force of the tension spring in the x-axis direction provides impact resistance for the impact rod 1, so that the impact rod 1 has sufficient reaction force for triggering the contact edge when being impacted. The component forces of the tension springs in the y-axis direction cancel each other. The component force of the tension springs in the z-axis direction acts on the base through the impact rod 1, so that the bottom end of the impact rod 1 abuts against the upper surface of the base 3.

As shown in fig. 9, the projection of the axial lead of the tension spring on the base is the same as the impact direction, and the component force of the tension spring in the x-axis direction provides impact resistance for the impact rod 1, so that the impact rod 1 has sufficient reaction force for triggering the contact edge when being impacted. The component force of the tension springs in the y-axis direction is zero; the component force of the tension springs in the z-axis direction acts on the base through the impact rod 1, so that the bottom end of the impact rod 1 abuts against the upper surface of the base 3.

Since the component force of the tension spring in the y-axis direction does not have any technical effect, the smaller the component force of the tension spring in the direction perpendicular to the impact direction is, the smaller the ineffective deformation of the tension spring is. The mounting direction of the extension spring axis on the base is therefore preferably the same as the impact direction, i.e. the arrangement shown in fig. 9.

A force balance member for restraining the striking rod 1 to prevent the striking rod 1 from rotating toward the tension spring 6 under the tension of the tension spring 6; the force balance is preferably an auxiliary support plate 7 fixedly connected with the impact rod 1 by bolts or welding, and the auxiliary support plate 7 can prevent the impact rod 1 from rotating towards the impact direction by abutting against the base 3 and does not hinder the impact rod 1 from rotating along the impact direction.

The supporting force of the base 3, the pulling force of the tension spring 6 and the restraining force of the force balance piece are balanced to ensure that the impact rod 1 is fixed on the base 3; the tension of the tension spring 6 can provide impact resistance for the impact rod 1, so that the impact rod 1 is provided with enough reaction force for the contact edge to trigger the contact edge when being impacted; the weight of the base 3 is set to trigger the tool, and when the tool is impacted, the friction between the bottom of the base 3 and the ground can be ensured to be enough, and the whole trigger tool cannot move. Therefore, when the trigger tool with the base is used for testing, the time for repeatedly placing the trigger body is reduced, and the efficiency is improved.

When the impact occurs until the impact rod 1 rotates until the axial lead of the impact rod is coincident with the axial lead of the tension spring 6, as shown in fig. 5, the impact force drives the impact rod 1 to rotate around the joint of the impact rod 1 and the tension spring 6; after the striking rod 1 rotates until the axial lead of the striking rod 1 coincides with the axial lead of the tension spring 6, as shown in fig. 6, the tension force of the tension spring 6 forces the striking rod 1 to topple over until the top of the striking rod 1 is attached to the base 3, and the top of the striking rod 1 is always attached to the base 3 under the tension force of the tension spring 6, as shown in fig. 7. Thereby ensuring that the striker rod 1 does not strike the edge contact mechanism twice due to bouncing.

As shown in fig. 8 and 9, in other embodiments, since the impact bar 1 uses the connection point of the impact bar 1 with the tension spring 6 as the rotation center, the top of the impact bar 1 first touches the base 3, and therefore, the rubber buffer 8 for receiving the top of the impact bar 1 is fixedly connected to the base 3, so that the impact force generated when the impact bar 1 touches the base 3 can be buffered, and the impact noise volume and the possibility of damaging the top end of the impact bar 1 are reduced. It should be noted that, since it is impossible to completely match the direction of each impact of the test vehicle, the top of the impact bar 1 is slightly different from the position of the base 3 at each time, and thus the area of the rubber cushion pad 8 is larger than the contact area of the top of the impact bar 1 with the base 3, for example, 3 times to cover all possible areas, so as to ensure that the top of the impact bar 1 contacts the cushion pad each time it falls down.

As shown in fig. 10-16, in other embodiments, a linear guide chute 9 is formed on the upper surface of the base 3, the width dimension of the guide chute 9 in the chute is larger than the width dimension of the slot, and the guide chute 9 extends along the impacting direction;

and a slider 10 slidably disposed inside the guide chute 9; one end of the tension spring 6 and the end far away from the impact rod 1 pass through the notch of the guide chute 9 and are fixedly connected with the sliding block 10; the sliding block 10 cannot be separated from the guide chute 9 under the action of the tensile force of the tension spring 6 due to the obstruction of the notch;

before the impact, the impact rod 1, the force balance, the tension spring 6 and the slider 10 are as shown in fig. 10, and after the impact, the impact rod 1, the force balance, the tension spring 6 and the slider 10 move as a whole by the distance of the length of the chute along the impact direction, as shown in fig. 12; the distance of the length of the sliding groove forms the buffer distance between the impact rod 1 and the edge touching mechanism, so that the impact force when the impact rod 1 and the edge touching mechanism touch can be reduced, and the possibility that the impact rod 1 and the edge touching mechanism are damaged due to impact is reduced. It should be noted, of course, that the impact force after cushioning is still greater than the critical impact force that triggers the emergency braking and de-energizing of the vehicle.

As shown in fig. 14, in some other embodiments, a hug member is further included, and the hug member structure is exemplified as follows:

the enclasping piece comprises a mother magnetic seat 11 and a child magnetic block 12 which are attracted to each other, the mother magnetic seat 11 is fixedly arranged on the base 3, and the child magnetic block 12 is fixedly arranged on the impact rod 1; when the impact rod 1 contacts with the base 3, the main magnetic seat 11 and the sub magnetic blocks 12 are attracted to each other to prevent the impact rod 1 from rebounding, so that the impact rod 1 is tightly held, and the impact rod 1 is prevented from bouncing up and falling down secondarily due to the rebounding force of the base 3.

Since the direction of each impact of the test vehicle cannot be completely consistent, the contact position of the impact rod 1 with the base 3 is slightly different each time, so that the area of the main magnetic seat 11 is larger than that of the sub magnetic seat 12 in practical implementation, for example, the area of the main magnetic seat 11 is 3 times that of the sub magnetic seat 12 to cover all possible areas, as shown in fig. 15, so that the sub magnetic seat 12 can attract each other with the main magnetic seat 11 each time the impact rod 1 contacts with the base 3.

The magnetic attraction force of the main magnetic seat 11 and the sub magnetic block 12 prevents the impact rod 1 from rebounding. It should be noted that, here, the striking rod 1 is sprung differently from the striking rod 1, and here, the striking rod 1 is sprung by a slight distance and falls onto the base 3 under the repulsive force of the base 3. Because the impact rod 1 falls down secondarily to produce secondary noise and self secondary damage, so the enclasping piece can avoid secondary noise and impact rod 1 secondary damage to produce.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by persons skilled in the art that the present utility model is not limited to the embodiments described above, but is capable of numerous variations and modifications without departing from the spirit and scope of the utility model as hereinafter claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (10)

1. Scram mode triggers frock, a serial communication port, include:

the impact rod is fixedly arranged, and the impact rod is fixedly arranged in a manner that the impact rod can ensure that the impact rod provides sufficient reaction force for the contact edge to trigger the contact edge when bearing impact;

and a buffer member fixedly connected to the impact surface of the impact rod.

2. The emergency stop mode triggering tool according to claim 1, wherein the striking surface of the striking rod is an arc surface.

3. The emergency stop mode triggering tool according to claim 1, wherein the buffer member is a rubber pad or a silicone foam.

4. The emergency stop mode triggering tool as recited in claim 1, further comprising a base, the striker rod being fixedly disposed on the base, the weight of the base being configured so that the base does not move when impacted.

5. The emergency stop mode triggering tool according to claim 4, wherein the base is provided with a thread groove, the outer surface of the striking rod is provided with an external thread, and the striking rod is inserted into the thread groove and is in threaded connection with the thread groove through the external thread.

6. The emergency stop mode triggering tool as recited in claim 1, further comprising:

the bottom end of the striking rod is propped against the base;

the two ends of the impact rod are fixedly connected with the base, and the connecting point of the impact rod and the tension spring is a distance away from the bottom end of the impact rod;

the force balance piece is used for restraining the impact rod so as to prevent the impact rod from rotating towards the impact direction under the action of the tension spring;

the supporting force of the base, the tension force of the tension spring and the restraining force of the force balance piece balance the force mutually so as to ensure that the impact rod is fixed on the base; and the tension of the tension spring can ensure that the striking rod provides sufficient reaction force for the contact edge to trigger the contact edge when the striking rod is impacted.

7. The emergency stop mode triggering tool as recited in claim 6, wherein the force balance member is an accessory support plate fixedly connected to the impact bar, the accessory support plate being configured to abut against the base to prevent the impact bar from rotating in the impact direction.

8. The emergency stop mode triggering tool according to claim 6, wherein the base is fixedly connected with a rubber buffer pad for receiving an impact rod which falls down reversely towards the impact direction.

9. The emergency stop mode triggering tool according to claim 6, wherein a linear guide chute is formed in the upper surface of the base, the width dimension of the guide chute in the chute is larger than the width dimension of the notch, and the guide chute extends along the impact direction;

the sliding block is arranged in the groove of the guide chute in a sliding way, and one end, far away from the impact rod, of the tension spring penetrates through the notch of the guide chute and is fixedly connected with the sliding block.

10. The emergency stop mode triggering tool according to claim 1, further comprising a clasping piece, wherein the clasping piece comprises a mother magnetic seat and a child magnetic block which are attracted to each other, the mother magnetic seat is fixedly arranged on the base, and the child magnetic block is fixedly arranged on the impact rod; when the impact rod is contacted with the base, the main magnetic seat and the sub magnetic blocks are mutually attracted to tightly hold the impact rod.