An internal support type intelligent parking anti-slip device and intelligent parking system

Abstract

The utility model provides an internally supported intelligent parking anti-slip device and an intelligent parking system, wherein the internally supported intelligent parking anti-slip device comprises a support arm assembly, the support arm assembly comprises a spring component; the spring component comprises a disc spring or a disc spring group, and a fixing member arranged at the end of the spring component in the elastic expansion and contraction direction, characterized in that: a pressure sensor component is arranged between the fixing member and the spring component; the pressure sensor component comprises a first surface of the disc spring or the disc spring group facing the spring component, and a second surface facing the fixing member; a pressure plane is arranged on the second surface, and a pressure-bearing plane is arranged on the fixing member corresponding to the contact position with the pressure plane; the pressure plane and the pressure-bearing plane are perpendicular to the elastic expansion and contraction direction of the spring component; a pressure sensor is arranged on the pressure plane. The technical solution of the utility model can be widely used in the field of train parking lot monitoring.

Description

Technical Field

[0001] The utility model relates to a railway train stop monitoring technology, in particular to a train stop anti-slip device and an intelligent parking system provided with the anti-slip device. Background Art

[0002] With the rapid development of railway transportation, the safety of trains at stops has received increasing attention. Especially in complex terrains such as mountainous areas and slopes, if the trains are not adequately fixed when stopped, the vehicles are easily affected by external forces such as wind and vibration, resulting in uncontrolled movement, slipping accidents, and causing significant losses.

[0003] In order to prevent the above-mentioned vehicle slipping accidents, the internal support type parking anti-slip device has been widely used in the railway system as an effective parking fixing device. The internal support type parking anti-slip device is a safety device used in railway lines. It is installed between two rails and mainly achieves the purpose of parking and anti-slipping by friction braking the inner side of the railway vehicle wheel set. The internal support type parking anti-slip device includes a brake rail, a support arm connected to the brake rail, and a driving mechanism for driving the support arm. The support arm drives the brake rail to approach the wheel, thereby braking the wheel.

[0004] The working status of existing internal support parking anti-slip devices is mostly monitored by manual inspection to avoid accidents caused by failure of the internal support parking anti-slip devices. This monitoring method relies on human factors, has many uncertainties and high risks. In addition, manual inspection cannot achieve real-time monitoring, and problems are often found with lag. Utility Model Content

[0005] In order to solve the problems of high safety risk and delayed problem discovery in the existing internally supported parking anti-slip devices, the utility model provides an internally supported intelligent parking anti-slip device and an intelligent parking system.

[0006] The technical solution of the utility model is as follows:

[0007] An internally supported intelligent parking anti-slip device comprises a support arm assembly, wherein the support arm assembly comprises a spring component; the spring component comprises a disc spring or a disc spring group, and a fixing member arranged at the end of the spring component in the elastic expansion and contraction direction, and a pressure sensor component is arranged between the fixing member and the spring component; the pressure sensor component comprises a first surface of the disc spring or the disc spring group facing the spring component, and a second surface facing the fixing member; a pressure plane is arranged on the second surface, and a pressure-bearing plane is arranged on the fixing member corresponding to the contact position of the pressure plane; the pressure plane and the pressure-bearing plane are perpendicular to the elastic expansion and contraction direction of the spring component; a pressure sensor is arranged on the pressure plane.

[0008] Optionally, matching concave and convex positioning structures are respectively provided on the pressure sensor component and the fixing member; the concave and convex positioning structures include a convex structure and a concave structure; in the assembled state, the convex structure extends into the concave structure; the convex structure and the concave structure can slide relative to each other along the elastic expansion and contraction direction of the spring component; when the pressure plane touches the pressure-bearing plane, the top of the convex structure and the bottom of the concave structure are in a non-contact state.

[0009] Optionally, the second surface is annular; the concave-convex positioning structure includes the convex structure arranged on the fixing member and the concave structure arranged on the second surface; the stepped edge of the concave structure and the stepped edge of the convex structure have matching straight edges.

[0010] Optionally, a pressure sensor is arranged on the first surface; and the portion of the first surface where the pressure sensor is arranged is a plane perpendicular to the elastic expansion and contraction direction of the spring component.

[0011] Optionally, a pressure-bearing transition piece is arranged between the first surface and the disc spring; a transfer plane that can match the first surface in contact pressure is arranged on the pressure-bearing transition piece; the transfer plane is perpendicular to the elastic expansion and contraction direction of the spring component; and a transition surface that contacts pressure with the disc spring is arranged on the pressure-bearing transition piece.

[0012] Optionally, a curved surface matching the shape of the disc spring is provided on the transition surface.

[0013] The intelligent parking system includes the internally supported intelligent parking anti-slip device as described above; and also includes a control module; a data communication channel is set between the pressure sensor of the internally supported intelligent parking anti-slip device and the control module; the control module is used to receive the pressure data collected by the pressure sensor.

[0014] The technical effects of the utility model are as follows:

[0015] The internal support type intelligent parking anti-slip device of the utility model is provided with a spring component composed of a disc spring or a disc spring group as a force transmission component in the support arm assembly so that the brake rail can apply pressure to the wheel at an appropriate speed, thereby reducing the impact on the wheel. The surface of the disc spring transmitting force is a curved surface, and the pressure sensor needs to apply pressure on a plane to obtain correct measurement data. After contacting the curved surface of the disc spring, the measured data will be distorted. To solve this problem, the pressure sensor component of the utility model sets the pressure sensor on the second surface in contact with the fixing part, and the pressure sensor may not be set on the first surface in contact with the disc spring. Since the pressure bearing plane of the fixing part can be correctly set for the pressure sensor, the technical solution of the utility model can make the pressure sensor in a normal working state, can obtain the correct pressure data transmitted by the disc spring or the disc spring group, and avoid the problem of failure of the pressure sensor caused by direct contact with the disc spring. The intelligent parking system including the internal support type intelligent parking anti-slip device of the utility model can monitor in real time whether the pressure value of the internal support type intelligent parking anti-slip device is in a normal state, so that potential accidents can be discovered early and safety is improved. In summary, the technical solution of the utility model achieves the purpose of the utility model.

[0016] The further effects of the above optional manner will be described below in conjunction with the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an appearance view of the internally supported intelligent parking anti-slip device of the present invention.

[0018] Figure 2 for Figure 1 Exploded view of the major components of the support arm assembly in the illustrated embodiment.

[0019] Figure 3 for Figure 1 Cross-sectional view of the spring member in the illustrated embodiment.

[0020] Figure 4 for Figure 1 A perspective view of a pressure sensor assembly from a first angle in the illustrated embodiment.

[0021] Figure 5 for Figure 1 A perspective view of a pressure sensor assembly from a second angle in the illustrated embodiment.

[0022] Figure 6 for Figure 1 A perspective view of the fixing member in the illustrated embodiment.

[0023] Figure 7 This is a structural principle diagram of the intelligent parking system of the utility model.

[0024] The symbols in the figure are explained as follows:

[0025] 101. brake rail; 102. support arm assembly; 103. drive screw;

[0026] 201, fixing bolt; 202, fixing piece; 203, pressure sensor component; 204, pressure-bearing transition piece; 205, disc spring assembly; 206, fixing piece;

[0027] 301, pressure sensor; 302, convex structure; 303, concave structure;

[0028] 401, first page;

[0029] 501, flat surface; 502, straight edge;

[0030] 601. Pressure-bearing plane; 602. Straight edge. DETAILED DESCRIPTION

[0031] The technical solution of the utility model is described in detail below in conjunction with the embodiments shown in the accompanying drawings.

[0032] Figure 1 The figure shows the appearance of the internal support type intelligent parking anti-slip device of the present invention. Figure 1 As shown, the internal support type intelligent parking anti-slip device includes a brake rail 101, a support arm assembly 102 and a driving mechanism including a driving screw 103 connected in sequence. The driving mechanism drives the support arm assembly 102, thereby pushing the two brake rails 101 to move to both sides respectively. After the brake rail 101 touches the inner side of the stopped wheel, the driving mechanism continues to work, and gradually increases the pressure between the brake rail 101 and the wheel through the spring component in the support arm assembly 102. After reaching a predetermined value, the driving mechanism stops working. When the vehicle needs to move, the driving mechanism runs in the opposite direction, so that the brake rail 101 gradually breaks away from contact with the wheel. The working process of the above-mentioned internal support type intelligent parking anti-slip device and the technical solution for realizing the working process are similar to the existing technology, which will not be repeated here.

[0033] From the working process of the above-mentioned internal support type intelligent parking anti-slip device, it can be seen that whether the brake rail 101 reaches a predetermined pressure after contacting the wheel is the key to preventing the vehicle from slipping, and the support arm assembly 102 is a component for transmitting force. In order to accurately measure the pressure value between the brake rail 101 and the wheel, the utility model adopts the following measures.

[0034] Figure 2 The main structure of the support arm assembly 102 is shown. Figure 2As shown, the support arm assembly 102 includes a fixing bolt 201, a fixing member 202, a pressure sensor component 203, a pressure-bearing transition member 204, a disc spring assembly 205, and a fixing member 206. The fixing bolt 201 penetrates the fixing member 202, the pressure sensor component 203, the pressure-bearing transition member 204, and the disc spring assembly 205, and then forms a threaded connection with the fixing member 206, thereby fastening the fixing member 202, the pressure sensor component 203, the pressure-bearing transition member 204, the disc spring assembly 205, and the fixing member 206 to form the support arm assembly 102. Figure 1 The fixing member 201 is connected to the brake rail 101, and the fixing member 206 is connected to the driving mechanism.

[0035] like Figure 3 As shown, the disc spring group 205 is an assembly formed by a number of disc springs arranged coaxially. The disc spring is a disc spring, also known as a Belleville spring washer, which is a washer-type spring with a truncated cone cross-section made of metal sheet or forging blank. The working principle of the disc spring is to be conical in the axial direction and bear the load, and store a certain amount of potential energy after being deformed by the load. The pressure transmitted by the disc spring group 205 is the pressure value between the brake rail 101 and the wheel. If a pressure sensor in contact with the disc spring group 205 is set, the pressure value transmitted by the disc spring group 205 can be obtained in theory, and then it can be monitored whether the brake rail 101 reaches the predetermined pressure after contacting the wheel. However, in practice, this setting method has major problems. The main problem is that since the contact surface of the disc spring and the pressure sensor is non-planar, this causes uneven force on the surface of the pressure sensor sensing the pressure, which causes the pressure data measured by the pressure sensor to be distorted, and the parking condition cannot be effectively monitored.

[0036] Figure 3 In the embodiment shown, a pressure sensor component 203 is provided. Figure 4 and Figure 5 The pressure sensor component 203 has two main working surfaces: a first surface 401 facing the disc spring assembly 205; and a second surface facing the fixing member 202. Figure 5 The main structure of the second side is shown. Figure 5 As shown, a boss is provided in the middle of the second surface, and the table surface of the boss is a pressure plane 501. A pressure sensor 301 is provided on the pressure plane 501 (refer to Figure 3 ).like Figure 3 and Figure 6 As shown, when the support arm assembly 102 is assembled, the pressure plane 501 corresponds to the pressure-bearing plane 601 on the contact-pressing fixing member 202. The pressure plane 501 and the pressure-bearing plane 601 are both perpendicular to the elastic expansion and contraction direction of the disc spring assembly 205, that is, the force transmitted by the disc spring assembly 205 acts perpendicularly on the pressure sensor on the pressure plane 501. This arrangement enables the pressure sensor to obtain accurate measurement values.

[0037] The pressure sensor is a sensitive element, and any external interference will cause distortion of the measurement result, such as interference caused by relative sliding between the pressure plane 501 and the pressure-bearing plane 601. In order to eliminate such interference, a concave-convex positioning structure is provided between the fixing member 202 and the pressure sensor component 203. Figure 3 , Figure 5 and Figure 6 The concave-convex positioning structure includes a convex structure 302 disposed on the fixing member 202 and a concave structure 303 disposed on the second surface. The convex structure 302 matches the concave structure 303. The convex structure 302 is provided with a straight edge 602, and the corresponding concave structure 303 is provided with a straight edge 502. The straight edge 602 cooperates with the straight edge 502 after assembly to prevent the fixing member 202 and the pressure sensor component 203 from rotating relative to each other. Figure 3 In the assembly state shown, the protruding structure 302 extends into the concave structure 303. The protruding structure 302 and the concave structure 303 can slide relative to each other along the elastic expansion direction of the spring component. The arrangement of the concave-convex positioning structure can prevent relative sliding between the fixing member and the pressure sensor component 203.

[0038] like Figure 3 As shown, the dimension of the protruding structure 302 along the elastic expansion and contraction direction of the spring component is smaller than the depth of the concave structure 303 in this direction, so that when the pressure plane 501 and the pressure-bearing plane 601 are in contact, the top of the protruding structure 302 and the bottom of the concave structure 303 are in a non-contact state. This arrangement can also avoid the problem of distortion in pressure sensor measurement. If the top of the protruding structure 302 and the bottom of the concave structure 303 are also in a contact state when the pressure plane 501 and the pressure-bearing plane 601 are in contact, the contact between the top of the protruding structure 302 and the bottom of the concave structure 303 shares the pressure transmitted by the disc spring group 205, causing the measurement result of the pressure sensor set on the pressure plane 501 to be distorted.

[0039] At this point, the above-mentioned setting mode of the pressure sensor 301 enables the internal support type intelligent parking anti-skid device of the utility model to obtain the pressure value between the brake rail 101 and the wheel in real time, providing basic data for subsequent intelligent monitoring.

[0040] exist Figure 3In the illustrated embodiment, a pressure sensor is also provided on the first surface 401. The value measured by the pressure sensor combined with the value measured by the pressure sensor 301 can further improve the accuracy of the measured pressure value. As mentioned above, if the disc spring directly contacts the first surface 401, the measurement result will be distorted. To solve this problem, a pressure-bearing transition piece 204 shaped like an annular gasket is provided in the present embodiment. The pressure-bearing transition piece 204 is provided between the disc spring assembly 205 and the pressure sensor component 203, and contacts the disc spring assembly 205 and the first surface 401 of the pressure sensor 203, respectively. The surface where the pressure-bearing transition piece 204 contacts the first surface 401 is called the transfer plane (i.e. Figure 4 The back of the first surface 401 in the figure is not shown). The surface of the pressure-bearing transition piece 204 that contacts the disc spring is the transition surface. The transmission surface matches the first surface 401, both are annular planes, and the transmission surface and the first surface 401 are perpendicular to the elastic expansion and contraction direction of the spring component. This arrangement enables the pressure sensor arranged on the first surface 401 to be in normal working condition. The transition surface receives the pressure transmitted by the disc spring, and utilizes the stiffness of the pressure-bearing transition piece 204 itself to evenly transfer the pressure to the pressure sensor on the first surface 401, so that an accurate pressure value can be obtained. In order to further stabilize the contact pressure between the transition surface and the disc spring, a curved surface matching the surface of the disc spring that contacts the pressure can be provided on the transition surface.

[0041] Figure 7 The structure principle of the intelligent parking system of the utility model is shown. The intelligent parking system includes: Figure 1 The internal support type intelligent parking anti-slip device shown also includes a control module. A data communication channel is set between the pressure sensor of the internal support type intelligent parking anti-slip device and the control module, and the control module is used to receive and process the pressure data collected by the pressure sensor. An important function of the intelligent parking system is to monitor the parking status. The pressure data collected by the pressure sensor indirectly reflects whether the parking is normal, whether there is a risk of slipping, etc.

[0042] It is worth noting that the above is only a preferred embodiment of the utility model, and does not limit the patent protection scope of the utility model. The utility model can also improve the materials and structures of the above-mentioned various parts, or replace them with technical equivalents. Therefore, all equivalent structural changes made by using the description and illustrations of the utility model, or directly or indirectly applied to other related technical fields are also included in the scope of the utility model.

Claims

1. An internally supported intelligent parking anti-slip device, comprising a support arm assembly, the support arm assembly comprising a spring component; the spring component comprises a disc spring or a disc spring group, and a fixing member arranged at the end of the spring component in the elastic expansion and contraction direction, characterized in that: A pressure sensor component is arranged between the fixing member and the spring member; the pressure sensor component includes a first surface of the disc spring or the disc spring group facing the spring member, and a second surface facing the fixing member; a pressure plane is arranged on the second surface, and a pressure-bearing plane is arranged on the fixing member corresponding to the contact position of the pressure plane; the pressure plane and the pressure-bearing plane are perpendicular to the elastic expansion and contraction direction of the spring member; a pressure sensor is arranged on the pressure plane.

2. According to claim 1, the internal support type intelligent parking anti-slip device is characterized by: The pressure sensor component and the fixing member are respectively provided with concave and convex positioning structures that match each other; the concave and convex positioning structures include a convex structure and a concave structure; in an assembled state, the convex structure extends into the concave structure; the convex structure and the concave structure can slide relative to each other along the elastic expansion and contraction direction of the spring component; When the pressing plane and the pressure-bearing plane are in contact with each other, the top of the protruding structure and the bottom of the concave structure are in a non-contact state.

3. According to claim 2, the internal support type intelligent parking anti-slip device is characterized by: The second surface is annular; the concave-convex positioning structure includes the convex structure arranged on the fixing member and the concave structure arranged on the second surface; the stepped edge of the concave structure and the stepped edge of the convex structure have matching straight edges.

4. According to claim 1, the internal support type intelligent parking anti-slip device is characterized by: A pressure sensor is arranged on the first surface; the portion of the first surface where the pressure sensor is arranged is a plane perpendicular to the elastic expansion and contraction direction of the spring component.

5. According to claim 4, the internal support type intelligent parking anti-slip device is characterized in that: A pressure-bearing transition piece is arranged between the first surface and the disc spring; a transfer plane that can match the first surface with pressure is arranged on the pressure-bearing transition piece; the transfer plane is perpendicular to the elastic expansion and contraction direction of the spring component; and a transition surface that contacts the disc spring is arranged on the pressure-bearing transition piece.

6. According to claim 5, the internal support type intelligent parking anti-slip device is characterized in that: A curved surface matching the shape of the disc spring is arranged on the transition surface.

7. Intelligent parking system, characterized by: It comprises the internally supported intelligent parking anti-slip device as claimed in any one of claims 1 to 6; and also comprises a control module; a data communication channel is arranged between the pressure sensor of the internally supported intelligent parking anti-slip device and the control module; and the control module is used for receiving the pressure data collected by the pressure sensor.

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