Anti-impact protection structure and sensor

Abstract

The utility model provides an anti-impact protection structure and a sensor, the anti-impact protection structure comprises an overall cylindrical protection sleeve, the protection sleeve is configured to be capable of sleeving a sensor main body, a first end of the protection sleeve is divided into a plurality of sheet-shaped protection parts distributed along the circumferential direction, and the first end of the protection sleeve is provided with a plurality of sheet-shaped protection parts; each protection part is constructed to be located on the outer side of the side face of the corresponding side of the protection sleeve main body by being integrally folded outwards; the protection part located on the outer side of the side face of the protection sleeve body is integrally of an arc-shaped structure with the middle protruding outwards. Based on the technical scheme of the utility model, the plurality of protection parts based on the protection sleeve surround the outer side of the periphery of the sensor main body, and when the sensor is impacted and collided by outside such as sand and stones or other objects, the impact force of the objects can be buffered when acting on the protection parts, so that the impact strength of the sensor main body is greatly reduced, and the reliability of the sensor is improved. The sensor body is effectively protected.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to an impact-resistant protective structure and sensor. Background Technology

[0002] In the application environment of railway freight cars, structural stability and reliability are of paramount importance. During operation, railway freight cars are subjected to various external forces such as wind loads and impacts. Some functional components that are exposed to the external environment and lack specific protective designs are prone to damage under such complex conditions, leading to functional failures, increased maintenance costs, and even affecting the safe operation of the vehicle. This problem is particularly serious for functional components installed close to the ground, such as ground-based sensor components.

[0003] Sensor components close to the ground are highly susceptible to impacts from sand and gravel splashed during railway freight train travel, which can lead to sensor malfunctions. Therefore, it is necessary to design the structure to be impact-resistant. Utility Model Content

[0004] To address the problem that existing sensors are not sufficiently protected against external impacts, making them prone to damage when used in railway freight cars, this invention proposes an impact-resistant protective structure and sensor.

[0005] In the first aspect, the present invention proposes an impact-resistant protective structure, which includes a protective sleeve that is cylindrical in shape. The protective sleeve is configured to fit over the sensor body. The first end of the protective sleeve is divided into a plurality of circumferentially distributed protective parts. Each of the protective parts is configured to be located on the outside of the corresponding side of the protective sleeve body by folding outward as a whole.

[0006] The protective part located on the outer side of the main body of the protective sleeve has an overall arc-shaped structure with a central outward convexity.

[0007] In one embodiment, the first end of the protective part is connected to the protective sleeve body, and the second end of the protective part away from its first end contacts a corresponding side of the protective sleeve body, with the contact position close to the second end of the protective sleeve.

[0008] In one embodiment, the second end of the protective part is configured as an outwardly rolled-up structure to form an arc surface that contacts the side of the protective sleeve body.

[0009] In one embodiment, the first end of the protective part is connected to the main body of the protective sleeve, and the first end of the protective part is folded outward at an angle of not less than 135 degrees relative to the main body of the protective sleeve.

[0010] In one embodiment, the second end of the protective sleeve is divided into a plurality of circumferentially distributed sheet-like connecting portions, and at least some of the ends of the connecting portions are folded inward to form limiting protrusions that bulge outward relative to the inner wall of the connecting portion.

[0011] The limiting protrusion is designed to engage with the limiting groove on the sensor body when the protective sleeve is placed over the sensor body.

[0012] In one embodiment, the connecting portion is configured such that its width gradually decreases in the direction from the end connected to the protective sleeve body toward the end where the limiting protrusion is located, so that the width of the limiting protrusion corresponds to the minimum width of the connecting portion.

[0013] In one embodiment, the connecting portion corresponds one-to-one with the protective portion, and the connecting portion and the protective portion are positioned in the circumferential direction of the protective sleeve.

[0014] In one embodiment, the protective sleeve is constructed as a regular polygonal cylinder that matches the shape of the sensor body, and the first end of the protective sleeve is divided into a plurality of protective sections along the edge of the regular polygonal cylinder.

[0015] In one embodiment, the first end of the protective sleeve has a notch without a protective portion on the side corresponding to the wiring port on the side of the sensor body; or

[0016] The first end of the protective sleeve has a protective portion that is folded inward to cover the opening at the end of the protective sleeve body, corresponding to the wiring port on the side of the sensor body.

[0017] Secondly, the present invention proposes a sensor that includes a sensor body and the aforementioned impact-resistant protective structure, thereby possessing all the technical effects it has.

[0018] The above-mentioned technical features can be combined in various suitable ways or replaced by equivalent technical features, as long as the purpose of this utility model can be achieved.

[0019] The impact-resistant protective structure and sensor provided by this utility model have at least the following advantages compared with the prior art:

[0020] This utility model discloses an impact-resistant protective structure and sensor. Based on the multiple protective parts of the protective sleeve surrounding the outer side of the sensor body, when subjected to impacts and collisions from external objects such as sand or other objects, the impact force of these objects acting on the protective parts can be buffered, thereby greatly reducing the impact intensity on the sensor body and effectively protecting the sensor body. Attached Figure Description

[0021] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein:

[0022] Figure 1 The front sectional view of the impact-resistant protective structure of this utility model is shown;

[0023] Figure 2 The image shows a top view of the impact-resistant protective structure of this utility model;

[0024] Figure 3 This is a top view showing another embodiment of the impact-resistant protective structure of this utility model;

[0025] Figure 4 A schematic diagram of the sensor body of this utility model is shown.

[0026] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0027] Figure label:

[0028] 1-Protective sleeve, 11-Protective sleeve body, 12-Protective part, 121-Roll-up structure, 13-Connecting part, 131-Limiting protrusion, 2-Notch, 3-Sensor body, 31-Limiting groove, 32-Wiring port. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] An embodiment of this utility model provides an impact-resistant protective structure, which includes a cylindrical protective sleeve 1. The protective sleeve 1 is configured to fit over the sensor body 3. The first end of the protective sleeve 1 is divided into a plurality of circumferentially distributed sheet-like protective parts 12. Each protective part 12 is configured to be folded outward and located on the outer side of the corresponding side of the protective sleeve body 11. The protective part 12 located on the outer side of the protective sleeve body 11 is configured as an arc-shaped structure with a central outward convexity.

[0031] Specifically, the impact-resistant protective structure mainly includes a cylindrical protective sleeve 1. The first end of the protective sleeve 1 has axially cut slits of a certain length at different positions along the circumference, thus forming multiple separate, evenly distributed, sheet-like protective portions 12 at the first end of the protective sleeve 1. Based on the fact that the protective sleeve 1 is an overall thin-walled metal structure or an injection-molded plastic structure, the protective portions 12 can be constructed as outwardly folded sections, so that after folding, the protective portions 12 correspond to the outer side of the corresponding side of the protective sleeve body 11, as shown in the attached figure. Figure 1 and Figure 2As shown. Furthermore, the folded protective part 12 has an arc-shaped structure with a central outward convexity based on the outer side of the protective sleeve body 11, so that the protective part 12 as a whole has good elasticity.

[0032] In practical applications, the protective sleeve 1 is placed over the sensor body 3, at which point multiple arc-shaped protective parts 12 surround the outer perimeter of the sensor body 3. When subjected to impacts or collisions from external objects such as sand or gravel, the impact force acts on the protective parts 12. Based on the excellent elastic deformation capability of the arc-shaped protective parts 12, the impact can be buffered through deformation, thereby greatly reducing the impact intensity on the sensor body 3 and effectively protecting the sensor body 3.

[0033] In one embodiment, the first end of the protective part 12 is connected to the protective sleeve body 11, and the second end of the protective part 12 away from its first end contacts the corresponding side of the protective sleeve body 11, with the contact position close to the second end of the protective sleeve 1.

[0034] Specifically, as shown in the attached diagram. Figure 1 As shown, the second end of the protective part 12 contacts the side of the protective sleeve body 11. While using the protective part 12 to buffer the impact, it can improve the stability of the protective part 12 structure and avoid the problem of continuous back-and-forth vibration that may occur when the second end of the protective part 12 is suspended and subjected to impact (like a shrapnel).

[0035] Preferably, the second end of the protective part 12 is constructed as an outwardly rolled-up structure 121 to form an arc surface that contacts the side of the protective sleeve body 11. By using the arc surface of the rolled-up structure 121 to contact the protective sleeve body 11, frictional resistance can be reduced, and the arc surface can eliminate any sharp edges that might interfere with each other when the second end of the protective part 12 contacts the side of the protective sleeve body 11.

[0036] Preferably, the first end of the protective part 12 is connected to the protective sleeve body 11, and the angle at which the first end of the protective part 12 is folded outward relative to the protective sleeve body 11 is not less than 135 degrees. If the folding angle is too small, the protective part 12 cannot fully cover the outer side of the protective sleeve body 11, and it will result in the radial dimension of the protective sleeve 1 being too large, making it inconvenient to install; if the folding angle is too large, the protective part 12 will fit too closely to the outer side of the protective sleeve body 11, resulting in less space for deformation and affecting the cushioning effect against impact.

[0037] In one embodiment, the second end of the protective sleeve 1 is divided into a plurality of sheet-like connecting portions 13 distributed circumferentially, and at least some of the ends of the connecting portions 13 are folded inward to form a limiting protrusion 131 that protrudes outward relative to the inner wall of the connecting portion 13; wherein, the limiting protrusion 131 is configured to be able to be inserted into the limiting groove 31 on the sensor body 3 when the protective sleeve 1 is placed outside the sensor body 3.

[0038] Specifically, as shown in the attached diagram. Figure 1 and Figure 2 As shown, the second end of the protective sleeve 1 forms multiple circumferentially distributed sheet-like connecting portions 13 in the same manner as the protective portion 12 formed at the first end. The main body of the connecting portions 13 is not folded; only the end of the connecting portions 13 is folded inward to form a limiting protrusion 131. When the protective sleeve 1 is fitted onto the sensor body 3, the limiting protrusion 131 interferes with and is squeezed against the outer wall of the sensor body 3, causing the connecting portions 13 to warp outward (elastic deformation). This causes the limiting protrusion 131 to be misaligned with the outer wall of the sensor body 3, allowing the protective sleeve 1 to fit onto the sensor body 3. When the protective sleeve 1 is fully fitted onto the sensor body 3, the limiting protrusion 131 enters the limiting groove 31 on the outer wall of the sensor body 3, and the connecting portions 13 deform inward, ensuring that the limiting protrusion 131 is stably fitted into the limiting groove 31, preventing the protective sleeve 1 from detaching from the sensor body 3.

[0039] It should be noted that when the protective sleeve 1 needs to be removed from the sensor body 3, the operator only needs to pull the connecting part 13 radially outward to deform it and disengage the limiting protrusion 131 from the limiting groove 31, thus removing the protective sleeve 1. Furthermore, to improve the convenience of removing the protective sleeve 1, the limiting protrusion 131 can be provided only at the ends of some connecting parts 13, or even only at the end of one of the connecting parts 13.

[0040] Furthermore, based on the foregoing, the second end of the protective part 12 contacts the corresponding side of the protective sleeve body 11 and the contact position is close to the second end of the protective sleeve 1, so that when the protective part 12 is subjected to external impact, part of the force can act radially inward on the connecting part 13 at the second end of the protective sleeve 1. Thus, the impact force can further ensure that the limiting protrusion 131 of the connecting part 13 is stably fitted in the limiting groove 31, thereby improving the stability of the protective sleeve 1 on the sensor body 3 under external impact.

[0041] Optionally, the connecting portion 13 is configured such that its width gradually decreases from the end connected to the protective sleeve body 11 toward the end where the limiting protrusion 131 is located, so that the width of the limiting protrusion 131 corresponds to the minimum width of the connecting portion 13. The purpose of doing so is to reduce the width of the limiting protrusion 131 to a certain extent, so that when the connecting portion 13 is manually operated, the limiting protrusion 131 can be more easily disengaged from the limiting groove 31, thereby making it easier to remove the protective sleeve 1.

[0042] In one embodiment, in order to improve the ease of manufacturing the protective sleeve 1, the connecting part 13 corresponds to the protective part 12 one by one, and the connecting part 13 and the protective part 12 correspond to each other in the circumferential direction of the protective sleeve 1. Based on the above structural design, the protective sleeve 1 can be easily integrally molded regardless of whether a thin-walled metal material or plastic is used.

[0043] In one embodiment, to facilitate the installation of the sensor body 3 using tools such as wrenches and sockets, the sensor body 3 is constructed as a hexagonal prism structure, as shown in the attached figure. Figure 4 As shown in the attached figure. Therefore, the protective sleeve 1 is constructed as a regular polygonal cylinder that matches the shape of the sensor body 3 (as shown in the attached figure). Figure 2 As shown in the figure, the first end of the protective sleeve 1 is divided into multiple protective parts 12 along the edge of the regular polygonal cylinder, and the second end of the protective sleeve 1 is also divided into multiple connecting parts 13 along the edge of the regular polygonal cylinder.

[0044] In one embodiment, the first end of the protective sleeve 1 has a notch 2 without a protective part 12 on the side corresponding to the wiring port 32 on the side of the sensor body 3; or, the first end of the protective sleeve 1 has a protective part 12 that is folded inward and covers the end opening of the protective sleeve body 11 on the side corresponding to the wiring port 32 on the side of the sensor body 3.

[0045] Specifically, as shown in the attached diagram. Figure 4 As shown, there is even a wiring port 3232 on one side of the sensor body 33, so the structure of the protective sleeve 1 needs to be optimized accordingly:

[0046] In the first method, the protective sleeve 1 is constructed as a complete cylindrical structure, but a clearance groove corresponding to the wiring port 32 is provided on the main body 11 of the protective sleeve. The clearance groove forms a slot at the second end of the protective sleeve 1. When the protective sleeve 1 is fitted into the sensor body 3, the wiring port 32 can be relatively inserted into the clearance groove from the slot opening. At the same time, no protective part 12 is provided at the position of the clearance groove in the circumferential direction, thereby forming a gap 2 between the left and right protective parts 12, as shown in the attached figure.

[0047] The second method, based on the first method, provides a protective part 12 at the circumferential position of the clearance groove. However, the folding direction of this protective part 12 is opposite to that of other protective parts 12. It folds inward to cover the end opening of the protective sleeve body 11 (which is also an arc-shaped structure with a central outward convexity), that is, it covers the top of the sensor body 3, thereby protecting the top of the sensor body 3 and avoiding interference with the wiring port 32.

[0048] An embodiment of this utility model also provides a sensor, which includes a sensor body 3 and an impact-resistant protective structure of any of the above embodiments, thereby possessing all the technical effects it has.

[0049] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. An impact-resistant protective structure, characterized in that, The protective sleeve is cylindrical in shape and is designed to fit over the sensor body. The first end of the protective sleeve is divided into a plurality of circumferentially distributed protective parts. Each of the protective parts is configured to be folded outward and located on the outside of the corresponding side of the protective sleeve body. The protective part located on the outer side of the main body of the protective sleeve has an overall arc-shaped structure with a central outward convexity.

2. The impact-resistant protective structure according to claim 1, characterized in that, The first end of the protective part is connected to the main body of the protective sleeve, and the second end of the protective part away from its first end contacts the corresponding side of the main body of the protective sleeve, with the contact position close to the second end of the protective sleeve.

3. The impact-resistant protective structure according to claim 2, characterized in that, The second end of the protective part is constructed as an outwardly rolled-up structure to form an arc surface that contacts the side of the main body of the protective sleeve.

4. The impact-resistant protective structure according to claim 1, characterized in that, The first end of the protective part is connected to the main body of the protective sleeve, and the angle at which the first end of the protective part is folded outward relative to the main body of the protective sleeve is not less than 135 degrees.

5. The impact-resistant protective structure according to any one of claims 1 to 4, characterized in that, The second end of the protective sleeve is divided into a plurality of sheet-like connecting portions distributed circumferentially, and at least some of the ends of the connecting portions are folded inward to form limiting protrusions that bulge outward relative to the inner wall of the connecting portion. The limiting protrusion is designed to engage with the limiting groove on the sensor body when the protective sleeve is placed over the sensor body.

6. The impact-resistant protective structure according to claim 5, characterized in that, The connecting portion is configured such that its width gradually decreases from the end connected to the protective sleeve body toward the end where the limiting protrusion is located, so that the width of the limiting protrusion corresponds to the minimum width of the connecting portion.

7. The impact-resistant protective structure according to claim 5, characterized in that, The connecting part corresponds to the protective part one by one, and the connecting part and the protective part correspond to each other in the circumferential direction of the protective sleeve.

8. The impact-resistant protective structure according to claim 1 or 7, characterized in that, The protective sleeve is constructed as a regular polygonal cylinder that matches the shape of the sensor body, and the first end of the protective sleeve is divided into multiple protective sections along the edge of the regular polygonal cylinder.

9. The impact-resistant protective structure according to claim 1, characterized in that, The first end of the protective sleeve has a notch without a protective portion on the side corresponding to the wiring port on the side of the sensor body; or The first end of the protective sleeve has a protective portion that is folded inward to cover the opening at the end of the protective sleeve body, corresponding to the wiring port on the side of the sensor body.

10. A sensor, characterized in that, It includes a sensor body and an impact-resistant protective structure as described in any one of claims 1 to 9.

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