Steering locking mechanism and vehicle testing device

Abstract

The utility model discloses a steering locking mechanism. The steering locking mechanism comprises a base, a ratchet wheel, a locking top block and an elastic piece. The base is provided with a vehicle body fixing structure, the ratchet wheel is provided with a shaft connecting hole, the locking top block is rotationally arranged on the base and abuts against teeth of the ratchet wheel, the elastic piece is arranged between the locking top block and the base and used for providing reset elastic force for the locking top block, and the locking top block is provided with a forward rotation locking position and a reverse rotation locking position. When the locking top blocks are located at the forward rotation locking position and the reverse rotation locking position respectively, forward rotation and reverse rotation of the ratchet wheel are limited respectively. The base is provided with a forward rotation elastic piece installation position and a reverse rotation elastic piece installation position, and the elastic piece is detachably arranged and can be installed on any one of the forward rotation elastic piece installation position and the reverse rotation elastic piece installation position. The utility model further discloses a vehicle testing device with the steering locking mechanism. The steering locking mechanism is simple in locking and reversing structure and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially is related to a steering locking mechanism and vehicle testing arrangement. BACKGROUND

[0002] In vehicle testing, such as lateral impact experiment of suspension system, steering of steering system often needs to be locked. The traditional method of locking steering system is that, with the help of steering intermediate shaft and steering column of steering system, rope or steel wire is bound on the vehicle body, so as to position the position of them and realize the locking of direction. However, the above-mentioned method has poor reliability, and when the steering system is subjected to a larger force, the components of the steering system are easily pulled off, which on the one hand damages the test components and the vehicle, and on the other hand also seriously delays the experiment progress due to the need to replace the damaged components. In the prior art, a ratchet mechanism is also used to lock the steering system. The ratchet mechanism usually includes a ratchet, a pawl and a spring. The ratchet is usually connected with the shaft of the steering system, the pawl is clamped on the teeth of the ratchet, and the spring is used to provide the elastic force for resetting the pawl. When the shaft of the steering system rotates, the ratchet rotates together, the pawl limits the ratchet to rotate in one direction only, and cannot rotate and reset in the other direction, so as to realize the locking of the steering system. However, for actual vehicle testing, the locking direction of the steering system needs to be switched, and the structure of the ratchet mechanism for locking and switching is relatively complex and has high cost. SUMMARY

[0003] The utility model aims at solving one of the technical problems in the prior art. Therefore, the utility model provides a steering locking mechanism, which has simple structure and low cost for locking and switching.

[0004] The utility model further provides a vehicle testing arrangement comprising the above-mentioned steering locking mechanism.

[0005] According to the steering locking mechanism in the first embodiment of the utility model, the steering locking mechanism comprises:

[0006] The base is provided with a vehicle body fixing structure;

[0007] The ratchet is provided with a shaft connecting hole;

[0008] The locking top block is rotatably arranged on the base, and the locking top block abuts against the teeth of the ratchet;

[0009] The spring is arranged between the locking top block and the base and is used to provide elastic force for resetting the locking top block;

[0010] The locking top block has a positive rotation locking position and a reverse rotation locking position, and the locking top block limits the positive rotation and reverse rotation of the ratchet wheel when the locking top block is in the positive rotation locking position and the reverse rotation locking position respectively; the base is provided with a positive rotation elastic element mounting position and a reverse rotation elastic element mounting position, the elastic element is detachably arranged and can be mounted in any one of the positive rotation elastic element mounting position and the reverse rotation elastic element mounting position; when the elastic element is mounted in the positive rotation elastic element mounting position, the elastic element cooperates with the locking top block in the positive rotation locking position; when the elastic element is mounted in the reverse rotation elastic element mounting position, the elastic element cooperates with the locking top block in the reverse rotation locking position.

[0011] The steering locking mechanism has at least the following beneficial effects: when the steering locking mechanism is installed, the shaft of the steering system or the shaft linked with the shaft of the steering system is connected with the ratchet wheel, so that the steering system and the ratchet wheel are linked, the base is installed on the vehicle body through the vehicle body fixing structure, the locking top block is adjusted to the positive rotation locking position or the reverse rotation locking position according to the test requirement, and the elastic element is mounted on the corresponding positive rotation elastic element mounting position or reverse rotation elastic element mounting position, so as to form the ratchet mechanism and lock the steering system. Since the locking top block can be adjusted to the positive rotation locking position or the reverse rotation locking position according to the requirement, and the base is provided with the corresponding positive rotation elastic element mounting position and reverse rotation elastic element mounting position, the position of the locking top block and the elastic element mounting position are adjusted according to the requirement, the adjustment of the locking direction is completed, the structure of the locking reversing is simple, the required parts are few, and the cost is low.

[0012] In other embodiments of the utility model, the base is provided with a first accommodating cavity, and the elastic element is accommodated in the first accommodating cavity when the elastic element is in the positive rotation elastic element mounting position;

[0013] And / or, the base is provided with a second accommodating cavity, and the elastic element is accommodated in the second accommodating cavity when the elastic element is in the reverse rotation elastic element mounting position.

[0014] In other embodiments of the utility model, the base comprises a base plate and a cover plate, the base plate is provided with a first mounting groove, the cover plate is detachably connected to the base plate and covers the groove opening of the first mounting groove, and the cover plate and the first mounting groove form the first accommodating cavity;

[0015] And / or, the base comprises a base plate and a cover plate, the base plate is provided with a second mounting groove, the cover plate is detachably connected to the base plate and covers the groove opening of the second mounting groove, and the cover plate and the second mounting groove form the second accommodating cavity.

[0016] In other embodiments of the utility model, the base comprises a base and a cover plate, the locking top block is detachably connected to the base, the cover plate is detachably connected to the base, and the cover plate and the base clamp and limit the locking top block.

[0017] In other embodiments of the utility model, the base comprises a base and a cover plate, the cover plate is connected to the base, and the ratchet wheel is at least partially arranged between the base and the cover plate, and the ratchet wheel is correspondingly arranged on both sides of the base and the cover plate along the axial direction.

[0018] In other embodiments of the utility model, the steering locking mechanism further comprises a pivot, the locking top block is rotatably connected to the base through the pivot, and the forward rotation locking position and the reverse rotation locking position are respectively located on both sides of the axis center line between the axis center of the pivot and the axis center of the shaft connecting hole.

[0019] In other embodiments of the utility model, the base is provided with a first limiting portion, the first limiting portion is configured to abut against the locking top block to limit the locking top block when the locking top block is in a first limit position, and the first limit position is away from the axis center line relative to the forward rotation locking position.

[0020] And / or, the base is provided with a second limiting portion, the second limiting portion is configured to abut against the locking top block to limit the locking top block when the locking top block is in a second limit position, and the second limit position is away from the axis center line relative to the reverse rotation locking position.

[0021] In other embodiments of the utility model, the vehicle body fixing structure is a mounting arm, the base comprises a base, one end of the mounting arm is connected to the base, the other end of the mounting arm is provided with a vehicle body abutting portion, and the vehicle body abutting portion is provided with a mounting hole.

[0022] In other embodiments of the utility model, the mounting arm is provided with at least two, and the one end of at least two mounting arms is connected to different ends of the base.

[0023] According to the vehicle testing device of the second embodiment of the utility model, the steering locking mechanism of the first embodiment of the utility model is included.

[0024] According to the vehicle testing device of the utility model embodiment, at least has the following beneficial effects: since the steering locking mechanism of the first embodiment of the utility model is adopted, when testing the vehicle, the steering system can be locked through the steering locking mechanism to meet the needs of testing, and the direction of locking can be adjusted according to needs, and the structure of locking reversing is simple and low in cost.

[0025] The additional aspects and advantages of the present application will be given partly in the following description, partly will become obvious from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0027] Figure 1 is a perspective view of the first embodiment of the present application;

[0028] Figure 2 is an exploded view of the first embodiment of the present application;

[0029] Figure 3 is a top view of the base and connecting arm of the first embodiment of the present application;

[0030] Figure 4 is a top view of the ratchet of the first embodiment of the present application;

[0031] Figure 5 is a perspective view of the locking top block of the first embodiment of the present application;

[0032] Figure 6 is a top view of the locking top block of the first embodiment of the present application in the normal rotation locking position, and the elastic member is installed in the normal rotation elastic member installation position, wherein the cover plate is hidden;

[0033] Figure 7 is a top view of the locking top block of the first embodiment of the present application in the reverse rotation locking position, and the elastic member is installed in the reverse rotation elastic member installation position, wherein the cover plate is hidden.

[0034] REFERENCE NUMERALS:

[0035] Base 100, base 110, cover plate 120, mounting arm 130, vehicle body abutting portion 131, mounting hole 132, shaft penetration hole 111, counterbore 112, first mounting groove 113, second mounting groove 114, first limiting portion 115, second limiting portion 116, protruding portion 117;

[0036] Ratchet 200, shaft connection hole 210, key groove 220;

[0037] Locking top block 300, pivot 310, clamping rod 320;

[0038] Elastic member 400. DETAILED DESCRIPTION

[0039] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0040] In the description of the present application, it should be understood that, if the orientation description, such as the upper, lower, front, rear, left, right and other indications of the orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and is not indicative or implied that the device or element must have a specific orientation, a specific orientation and operation, therefore, cannot be understood as a limitation of the present application.

[0041] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than and the like are not included in the number, above, below, within and the like are included in the number. If the first, second is described only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0042] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting and the like should be understood in a broad sense, and the skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0043] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] As described above, in the related art, when testing a vehicle, the steering of the steering system needs to be locked. In the existing test, the shaft of the steering system is usually bound to lock the steering system, which is simple to operate, but the component is prone to be pulled off, and the accuracy of the direction locking is insufficient. There is also a structure for locking the steering system through a ratchet mechanism, but the existing ratchet mechanism can only lock one direction, and when the direction of the test needs to be adjusted, the existing ratchet mechanism cannot adjust the locked direction or the structure for adjusting is complex, the components are many, and the cost is high. In order to solve the above problems, the utility model provides a steering locking mechanism, which locks the steering by using a ratchet mechanism and can adjust the locked direction as required, and the structure is simpler, the components are fewer, and the cost is lower than the existing structure.

[0045] Referring to Figure 1 and Figure 2 , respectively, a three-dimensional schematic view and an exploded schematic view of the steering locking mechanism in the first embodiment of the utility model are shown, wherein the steering locking mechanism comprises the following components: a base 100, a ratchet 200, a locking top block 300, and an elastic member 400.

[0046] Referring to Figure 3 and combining Figure 1 and Figure 6The base 100 is a fixed part of the entire mechanism, the ratchet wheel 200, the locking top block 300 and the elastic member 400 are arranged on the base 100, and the base 100 is used to provide a support basis for the above-mentioned components. The base 100 specifically comprises a base 110, a cover plate 120 and a mounting arm 130, the ratchet wheel 200, the locking top block 300 and the elastic member 400 are arranged on the base 110, the cover plate 120 is detachably connected to the base 110, and the cover plate 120 covers the ratchet wheel 200, the locking top block 300 and the elastic member 400. The base 110 is provided with a shaft penetrating hole 111, which is used for the shaft member to be locked to penetrate, and the shaft penetrating hole 111 and the penetrating shaft member are in clearance fit, so as not to affect the rotation of the penetrating shaft member. It should be noted that when the position of the base 100 does not affect the connection of the external shaft member and the ratchet wheel 200, the shaft penetrating hole 111 does not need to be arranged. Alternatively, in some embodiments, the base 100 is provided with a gap opening for the external shaft member to pass through. One end of the mounting arm 130 is connected to the base 110, and the other end of the mounting arm 130 is provided with a vehicle body abutting portion 131 which can abut against the vehicle body. The vehicle body abutting portion 131 is provided with a mounting hole 132 through which a fastener such as a screw, a rivet, a pop rivet and the like can pass. The mounting arm 130 is used as a vehicle body fixing structure for fixing the base 100 to the vehicle body, so as to fix the entire mechanism to the vehicle body. In the embodiment, the base 110 and the mounting arm 130 are integrally formed, and it can be imagined that the base 110 and the mounting arm 130 can also adopt a split structure, which are manufactured separately and then fixed and connected together.

[0047] With reference to Figure 4 and in combination with Figure 6 , the ratchet wheel 200 is provided with a shaft connecting hole 210 which is a central shaft hole of the ratchet wheel 200. The shaft connecting hole 210 is used to connect with the shaft member of the steering system. After the shaft connecting hole 210 is connected with the shaft member of the steering system, the ratchet wheel 200 can rotate synchronously with the shaft of the steering system. The ratchet wheel 200 is provided with twelve teeth on the outer periphery, and the teeth form tooth grooves between them. The teeth are equilateral triangular teeth. It should be noted that the number of teeth arranged on the ratchet wheel 200 is not limited to the embodiment shown in the drawings, and those skilled in the art can configure it according to the actual situation. In addition, the shape of the teeth arranged on the ratchet wheel 200 is not limited to triangular, for example, it can also be trapezoidal, rectangular and the like. The ratchet wheel 200 is arranged on the base 100, and the shaft connecting hole 210 of the ratchet wheel 200 is opposite to the shaft penetrating hole 111 of the base 100. Therefore, when the shaft member of the steering system penetrates the shaft penetrating hole 111 of the base 100 and extends out, it can be directly connected with the shaft connecting hole 210 of the ratchet wheel 200.

[0048] With reference to Figure 5 and in combination with Figure 2 , Figure 6 and Figure 7, the locking top block 300 is rotatably arranged on the base 110 of the base 100, the locking top block 300 comprises a pivot 310 and a clamping rod 320, one end of the clamping rod 320 is connected with the peripheral surface of the pivot 310, the base 110 of the base 100 is provided with a counterbore 112, the pivot 310 is detachably inserted into the counterbore 112 on the base 110 and can pivotally move in the counterbore 112. The other end of the clamping rod 320 of the locking top block 300 abuts and cooperates with the teeth of the ratchet wheel 200.

[0049] Referring to Figure 6 and Figure 7 , the locking top block 300 has two position states in the base 100, which are respectively a forward rotation locking position and a reverse rotation locking position, and the forward rotation locking position and the reverse rotation locking position are respectively located on the two sides of the axis connecting line L, the axis connecting line L is a connecting line between the axis of the pivot 310 of the locking top block 300 and the axis of the shaft connecting hole 210. As shown in Figure 6 , when the locking top block 300 is in the forward rotation locking position, the locking top block 300 is located on the right side of the axis connecting line L, when the ratchet wheel 200 rotates forward (clockwise in the attached Figure 6 , the ratchet wheel 200 presses the locking top block 300, so that the locking top block 300 has a tendency to rotate counterclockwise, and according to the geometric relationship, the locking top block 300 cannot rotate counterclockwise, thereby achieving locking of the forward rotation of the ratchet wheel 200. When the locking top block 300 is in the reverse rotation locking position, as shown in Figure 7 , the locking top block 300 is located on the left side of the axis connecting line L, when the ratchet wheel 200 rotates reversely (counterclockwise in the attached Figure 7 , the ratchet wheel 200 presses the locking top block 300, the locking top block 300 has a tendency to rotate clockwise, and again because of the geometric relationship, the locking top block 300 cannot rotate clockwise, thereby achieving locking of the reverse rotation of the ratchet wheel 200.

[0050] Referring to Figure 6 and Figure 7 , the base 100 is provided with a forward rotation elastic piece mounting position and a reverse rotation elastic piece mounting position, the forward rotation elastic piece mounting position is located on the right side of the locking top block 300, and the reverse rotation elastic piece mounting position is located on the left side of the locking top block 300. When locking the ratchet wheel 200 in forward rotation, the locking top block 300 is adjusted to the forward rotation locking position, as shown in Figure 6 , and at the same time, the elastic piece 400 needs to be mounted on the forward rotation elastic piece mounting position, so that the two ends of the elastic piece 400 abut with the locking top block 300 and the base 100 respectively. When the ratchet wheel 200 rotates reversely (counterclockwise in the attached Figure 6When the ratchet wheel 200 rotates in the positive direction (clockwise in the drawing), the locking block 300 can be opened by the teeth of the ratchet wheel 200 and rotate clockwise, thereby releasing the ratchet wheel 200 and not affecting the reverse rotation of the ratchet wheel 200. The elastic member 400 here plays a role in driving the locking block 300 to reset, so that the locking block 300 can keep pressing on the ratchet wheel 200, thereby ensuring that the locking block 300 can lock the positive rotation of the ratchet wheel 200 once the ratchet wheel 200 rotates in the positive direction. Similarly, when locking the ratchet wheel 200 in the reverse direction, as shown in Figure 7 the locking block 300 is adjusted to the reverse locking position, and at the same time the elastic member 400 needs to be installed at the reverse elastic member installation position. When the ratchet wheel 200 rotates in the positive direction (clockwise in the drawing), the locking block 300 can be opened by the teeth of the ratchet wheel 200 and rotate counterclockwise, thereby releasing the ratchet wheel 200 and not affecting the positive rotation of the ratchet wheel 200. The elastic member 400 at the reverse elastic member installation position also has the effect of making the locking block 300 have the tendency to press on the ratchet wheel 200. Figure 7

[0051] In the embodiment, the ratchet wheel 200, the locking block 300 and the elastic member 400 form a ratchet mechanism, and the locking block 300 is equivalent to a pawl. In the embodiment, the positive rotation locking position and the reverse rotation locking position of the locking block 300 are located on the right side and the left side of the axis center line L respectively, so that the locking block 300 cooperates with the teeth of the right half and the left half of the ratchet wheel 200 when it is at the positive rotation locking position and the reverse rotation locking position respectively, and the positive rotation elastic member installation position and the reverse rotation elastic member installation position are located on the right side and the left side of the locking block 300 respectively. By setting the positive rotation locking position and the reverse rotation locking position of the locking block 300 on both sides of the axis center line L, the displacement of the locking block 300 when switching positions needs to be changed is small, which is conducive to reducing the size of the mechanism. It can be imagined that in other embodiments, the positive rotation locking position and the reverse rotation locking position are not limited to being set at the above positions, for example, the positive rotation locking position and the reverse rotation locking position can also be located on the left side and the right side of the ratchet wheel 200, and the positive rotation elastic member installation position and the reverse rotation elastic member installation position can also be correspondingly set on the left side and the right side of the ratchet wheel 200. It can be understood that in the field, there are many implementation manners for the cooperation between the ratchet wheel, the pawl and the elastic member and the positional relationship therebetween, and the person skilled in the art can reasonably configure according to the actual situation.

[0052] ​When the steering locking mechanism is installed, the shaft of the steering system is inserted into the shaft insertion hole 111 of the base 110 through the shaft connection hole 210 of the ratchet 200, so that the steering system and the ratchet 200 are connected, the base 110 is installed and fixed to the vehicle body through the installation arm 130, the locking block 300 is adjusted to the positive rotation locking position or the reverse rotation locking position according to the test requirements, and the elastic member 400 is installed in the corresponding positive rotation elastic member installation position or the reverse rotation elastic member installation position, so that the steering system is locked. When the steering system needs to be reversed for testing, the position of the locking block 300 is adjusted, and the elastic member 400 is removed and installed in another elastic member installation position, so that the locking direction of the steering system is switched. Since the locking block 300 can be adjusted to the positive rotation locking position or the reverse rotation locking position as required, and the base 100 is provided with the corresponding positive rotation elastic member installation position and the reverse rotation elastic member installation position, the locking direction can be adjusted only by adjusting the position of the locking block 300 and installing the elastic member 400 in the corresponding elastic member installation position as required, the adjustment structure is simple, the required parts are few, and the cost is low.

[0053] For some vehicle tests, the steering system needs to be locked in the extreme position, such as the left dead direction or the right dead direction. When the steering locking mechanism is installed, the position of the locking block 300 and the elastic member 400 is configured according to the required locking direction, and the steering system does not need to be deliberately adjusted to the extreme position before the steering locking mechanism is installed. After the steering locking mechanism is installed, the steering system is rotated in the opposite direction to the locked direction to the extreme position, so that the steering system is locked in the extreme position, which is convenient to operate.

[0054] In the embodiment, the elastic member 400 is a spring, which is simple in structure and convenient to install. It should be noted that the elastic member 400 can also be other elastic structures, such as a spring piece, a rubber body, etc. In the embodiment, the elastic member 400 generates the elastic force applied to the locking block 300 by being compressed, and in some embodiments, the elastic member 400 can be replaced by an elastic member that generates elastic force by stretching, such as a tension spring. As shown in FIG. 6, the two ends of the tension spring can be respectively hooked to the locking block 300 and the base 100. For the locking block 300 in the positive rotation locking position, the tension spring needs to be installed on the left side of the locking block 300, so that when the ratchet 200 is reversed (counterclockwise) and the locking block 300 is rotated clockwise, the tension spring can be stretched to provide the elastic force for returning the locking block 300. Similarly, for the locking block 300 in the reverse rotation locking position, the tension spring needs to be installed on the right side of the locking block 300, so that when the ratchet 200 is rotated clockwise and the locking block 300 is rotated counterclockwise, the tension spring can be stretched to provide the elastic force for returning the locking block 300. Figure 6 Figure 7 ​As shown, the tension spring needs to be installed to the right side of the locking top block 300, so that when the ratchet 200 rotates forward (clockwise) and pushes the locking top block 300, the tension spring can be stretched to provide a restoring force to the locking top block 300.

[0055] Referring to Figure 6 and Figure 7 and in combination with Figure 1 and Figure 2 In the embodiment, the base 110 of the base 100 is provided with a first installation slot 113 and a second installation slot 114, and the cover plate 120 is connected with the base 110, the cover plate 120 covers the slot of the first installation slot 113 and the second installation slot 114, and the cover plate 120 and the first installation slot 113 and the second installation slot 114 respectively enclose to form a first cavity and a second cavity, the elastic member 400 in the forward rotation elastic member installation position is accommodated in the first cavity, and the elastic member 400 in the reverse rotation elastic member installation position is accommodated in the second cavity. Through the setting of the first cavity and the second cavity, the installation position of the elastic member 400 can be stabilized, and the elastic member 400 can move smoothly when compressed and stretched. It should be noted that in some embodiments, the base 100 can be provided with only one of the first cavity and the second cavity. In addition, in the embodiment, by setting the first installation slot 113 and the second installation slot 114 on the base 110, and enclosing the first cavity and the second cavity by the cover plate 120 and the first installation slot 113 and the second installation slot 114, when the cover plate 120 is disassembled, the elastic member 400 can be directly taken down, thereby facilitating the disassembly of the elastic member 400. It should be noted that the first cavity and the second cavity are not limited to being enclosed by the installation slot and the cover plate 120, for example, they can also be separately provided on the base 110, or provided on the cover plate 120, etc., and the person skilled in the art can make specific settings according to the actual situation.

[0056] Referring to Figure 2 and in combination with Figure 1The pivot 310 of the locking top block 300 is detachably inserted into the counterbore 112 of the base 110, and the cover plate 120 and the base 110 clamp and limit the locking top block 300. When the cover plate 120 is removed, the locking top block 300 can be directly removed, and the locking top block 300 can be re-adjusted to the normal rotation locking position or the reverse rotation locking position. The locking top block 300 is stably positioned and firmly installed by being limited by the cover plate 120 and the base 110. In the embodiment, the base 110 is provided with the counterbore 112 to cooperate with the pivot 310 of the locking top block 300. It can be imagined that the base 110 is not limited to the counterbore 112, and for example, a through hole can be provided to cooperate with the pivot 310 of the locking top block 300. It can be understood that in some embodiments, the base 100 can be provided with a pivot, and the locking top block 300 can be provided with a corresponding pivot hole, so that the rotation of the locking top block 300 can be achieved. In the embodiment, the locking top block 300 mainly includes the pivot 310 and the clamping rod 320. It can be understood that the locking top block 300 is not limited to the above structure, and the specific structure of the locking top block 300 can be reasonably configured according to the actual situation.

[0057] With reference to Figure 1 and Figure 2 The ratchet 200 provided on the base 110 is partially covered by the cover plate 120, and a part of the ratchet 200 is between the base 110 and the cover plate 120. The ratchet 200 is correspondingly provided on both sides in the axial direction of the base 110 and the cover plate 120, so that the base 110 and the cover plate 120 can axially limit the ratchet 200, so that the installation position is more stable. In some embodiments, the cover plate 120 can also be entirely covered on the ratchet 200, and the specific configuration can be determined according to the actual situation.

[0058] With reference to Figure 3 and in combination with Figure 6 and Figure 7 The base 110 is provided with the first limiting portion 115 and the second limiting portion 116 on both sides of the locking top block 300. The first limiting portion 115 and the second limiting portion 116 are used for abutting and cooperating with the locking top block 300. When the locking top block 300 deviates from the axial center line L relative to the normal rotation locking position and the reverse rotation locking position, the first limiting portion 115 and the second limiting portion 116 provide limit support for the locking top block 300 by abutting and cooperating with the locking top block 300, so as to avoid the locking top block 300 from easily falling out and losing the locking effect. It can be imagined that the first limiting portion 115 and the second limiting portion 116 are not limited to being provided on the base 110, and for example, they can also be provided on the cover plate 120, as long as they can limit the position of the locking top block 300. It should be noted that in some embodiments, the base 110 can be provided with only one of the first limiting portion 115 and the second limiting portion 116.

[0059] With reference to Figure 3 The upper end surface of the base 110 is protruded upward with a protrusion 117, the first limiting portion 115 and the second limiting portion 116 are part of the protrusion 117, the first mounting slot 113 and the second mounting slot 114 are arranged on the protrusion 117, the cover plate 120 abuts against the protrusion 117, the protrusion 117 is provided with a screw hole, the cover plate 120 is provided with a screw and is locked to the screw hole of the protrusion 117 by the screw, so as to realize the detachable connection between the cover plate 120 and the base 110. It can be imagined that the cover plate 120 can also be detachable through other structures, for example, detachable connection to the base 110 through clamping, buckle connection or pin connection and the like, and the specific configuration can be configured according to the actual situation.

[0060] With reference to Figure 4 The hole wall of the shaft connecting hole 210 of the ratchet wheel 200 is provided with three key grooves 220, and the key grooves 220 are arranged along the circumferential direction of the hole axis of the shaft connecting hole 210. By arranging a plurality of key grooves 220, flexible angle matching can be realized, and the ratchet wheel 200 is convenient to connect with the external shaft. Of course, it can be understood that the above-mentioned key grooves 220 are not limited to three, for example, more than three or two can also be arranged. In some embodiments, the key grooves 220 can also be arranged only one. In the embodiment, the key grooves 220 can be uniformly distributed, that is, the angular position difference of adjacent key grooves 220 is uniform, of course, it can be imagined that the key grooves 220 can also not be uniformly distributed, and the specific configuration can be configured according to the actual situation.

[0061] It can be understood that in some embodiments, the connection between the shaft connecting hole 210 and the external shaft is not limited to the structure of the key groove 220, for example, the external shaft is directly connected with the shaft connecting hole 210 through a tight fit, or the shaft connecting hole 210 and the external shaft are connected through a connecting member such as a pin, a screw and the like.

[0062] With reference to Figure 1The base 100 is fixed to the vehicle body through the mounting arms 130, simple structure and convenient fixation. The mounting arms 130 are provided with two, one end of one mounting arm 130 is connected with the rear end of the base 110, and the other mounting arm 130 is connected with the right end of the base 110. In some embodiments, the mounting arms 130 are not limited to two, for example, more than two or only one. The mounting arms 130 are not limited to be connected with the rear end and the right end of the base 110, and can be connected with any suitable position of the base 110. In the embodiments, the base 110 is stably supported by the mounting arms 130, and the mounting of the whole mechanism is more stable. In the embodiments, the vehicle body abutting portion 131 of the mounting arm 130 is provided with two mounting holes 132. It can be imagined that the number of the mounting holes 132 of the vehicle body abutting portion 131 is not limited to two, for example, more than two or only one.

[0063] It can be imagined that in some embodiments, the base 100 is not limited to be fixed by the mounting arms 130, for example, a flange structure, a mounting column or the like can be used to fix the base 100 to the vehicle body, which can be configured according to actual conditions.

[0064] In the embodiments, when the steering locking mechanism is installed, the shaft member in the steering system is installed and connected to the shaft connecting hole 210 of the ratchet wheel 200, so that the steering system is connected with the ratchet wheel 200. The shaft member of the steering system can be the input shaft of the steering gear, and the extended shaft end of the input shaft of the steering gear can be used for installation and connection. It can be imagined that the steering locking mechanism is not limited to be connected to the input shaft of the steering gear, for example, it can be other shaft members in the steering system, which can be configured according to actual conditions. It can be imagined that the steering locking mechanism is not limited to be directly connected with the shaft member in the steering system, and in some embodiments, the steering locking mechanism can be indirectly connected with the shaft member in the steering system through the shaft connected with the shaft member in the steering system.

[0065] The vehicle testing device (not shown in the drawings) of the second embodiment of the utility model comprises the steering locking mechanism of the first embodiment of the utility model, and the vehicle testing device can lock the steering system by using the steering locking mechanism to meet specific testing requirements. Since the steering locking mechanism of the first embodiment of the utility model is adopted, the direction of the locking can be adjusted as required when the vehicle is tested, and the structure of the locking reversing is simple and the cost is low. In the embodiments, the vehicle testing device can also include some sensors, control hosts, auxiliary clamps and the like, which can be configured according to actual testing requirements.

[0066] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill in the art who possesses under the premise of not departing from the utility model's tenet. Besides, the embodiment and the feature in the embodiment of the utility model can be combined mutually under the condition of not conflicting.

Claims

1. A steering locking mechanism, characterized in that, include: The base is equipped with a vehicle body fixing structure; The ratchet is equipped with a shaft connection hole; A locking top block is rotatably mounted on the base, and the locking top block abuts against the teeth of the ratchet; An elastic element is disposed between the locking top block and the base and is used to provide a resetting elastic force to the locking top block; The locking top block has a forward locking position and a reverse locking position. When the locking top block is in the forward locking position and the reverse locking position, it restricts the ratchet from rotating forward and in reverse, respectively. The base is provided with a forward elastic element mounting position and a reverse elastic element mounting position. The elastic element is detachable and can be installed in either the forward elastic element mounting position or the reverse elastic element mounting position. When the elastic element is installed in the forward elastic element mounting position, it cooperates with the locking top block in the forward locking position. When the elastic element is installed in the reverse elastic element mounting position, it cooperates with the locking top block in the reverse locking position.

2. The steering locking mechanism according to claim 1, characterized in that, The base is provided with a first cavity, and when the elastic element is in the forward rotation elastic element mounting position, the elastic element is housed in the first cavity; And / or, the base is provided with a second cavity, and when the elastic element is in the reversible elastic element mounting position, the elastic element is housed in the second cavity.

3. The steering locking mechanism according to claim 2, characterized in that, The base includes a base and a cover plate. The base is provided with a first mounting groove. The cover plate is detachably connected to the base and covers the opening of the first mounting groove. The cover plate and the first mounting groove enclose the first cavity. And / or, the base includes a base and a cover plate, the base is provided with a second mounting groove, the cover plate is detachably connected to the base and covers the opening of the second mounting groove, and the cover plate and the second mounting groove enclose to form the second cavity.

4. The steering locking mechanism according to claim 1, characterized in that, The base includes a base and a cover plate. The locking top block is detachably connected to the base, and the cover plate is detachably connected to the base. The cover plate and the base clamp and limit the locking top block.

5. The steering locking mechanism according to claim 1, characterized in that, The base includes a base and a cover plate, the cover plate being connected to the base, and the ratchet being at least partially disposed between the base and the cover plate, with the ratchet having its two sides corresponding to the base and the cover plate respectively along the axial direction.

6. The steering locking mechanism according to claim 1, characterized in that, The steering locking mechanism further includes a pivot, and the locking top block is rotatably connected to the base via the pivot. The forward locking position and the reverse locking position are located on both sides of the axis line connecting the axis of the pivot and the axis of the shaft connection hole, respectively.

7. The steering locking mechanism according to claim 6, characterized in that, The base is provided with a first limiting part, which is configured to abut against the locking top block when the locking top block is in a first extreme position to limit the locking top block. The first extreme position is away from the axis line relative to the forward rotation locking position. And / or, the base is provided with a second limiting part, which is configured to abut against the locking top block when the locking top block is in a second extreme position to limit the locking top block, the second extreme position being away from the axis line relative to the reverse locking position.

8. The steering locking mechanism according to claim 1, characterized in that, The vehicle body fixing structure is a mounting arm, the base includes a base, one end of the mounting arm is connected to the base, and the other end of the mounting arm is provided with a vehicle body abutment, the vehicle body abutment having a mounting hole.

9. The steering locking mechanism according to claim 8, characterized in that, The mounting arms are provided in at least two form, and one end of at least two of the mounting arms is connected to a different end of the base.

10. A vehicle testing device, characterized in that, Includes the steering locking mechanism as described in any one of claims 1 to 9.

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