Sensor protective cover

Abstract

This invention provides a protective sleeve for a sensor, comprising a first layer, a second layer, and a third layer sequentially fitted radially from the inside to the outside. All three layers are made of flexible material. The first layer has an internal cavity to accommodate the sensor. The second layer has a perforated structure, with no gap between the inner circumference of the second layer and the outer circumference of the first layer, and no gap between the outer circumference of the second layer and the inner circumference of the third layer. The three radially fitted layers of flexible material create a tiered buffer. The cavity in the first layer provides a tightly fitting space for the sensor, preventing it from shaking or shifting. The perforated structure in the second layer forms a compressible "deformation channel," which can collapse and deform to enhance buffering capacity under significant impact. The outermost third layer further disperses the impact, enhancing the protective effect of the sleeve.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical equipment verification, and in particular to a protective cover for a sensor. Background Technology

[0002] In pharmaceutical manufacturing, it is necessary to periodically validate production-related procedures and equipment to ensure they operate normally according to set requirements and produce compliant drugs. For example, it is essential to periodically validate rubber stopper and aluminum cap cleaning and sterilization machines using sensors to demonstrate that during the cleaning and sterilization process, the temperature distribution within the sterilized container is uniform, and the surfaces in contact with the product achieve the expected sterilization effect. If the sterilization temperature is too low or the temperature distribution within the sterilization equipment is uneven, the rubber stopper and aluminum cap cleaning and sterilization machine will fail to achieve the expected sterilization effect, and aseptic production cannot be effectively guaranteed. Therefore, periodic validation of operating procedures and equipment is particularly important.

[0003] During periodic verification of operating procedures and equipment, the unique drum design of the rubber stopper and aluminum cap cleaning and sterilization machine makes sensor placement extremely inconvenient. The sensors cannot be fixed to the inner wall of the drum, causing them to flip, roll, and collide with the drum during operation. Since sensors are precision devices and expensive, they are easily damaged by these collisions within the drum. Most commercially available sensor protective sleeves are cylindrical silicone sleeves, with the sensors placed inside. Relying on the cushioning effect of the silicone for shock absorption, their protective effect is relatively poor. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect of poor protective effect of existing sensor protective covers and to provide a sensor protective cover.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A protective cover for a sensor, the protective cover comprising a first layer, a second layer and a third layer sequentially disposed from the inside to the outside along the radial direction of the protective cover, wherein the first layer, the second layer and the third layer are all made of flexible material;

[0007] The first layer has a cavity inside, which is used to house the sensor;

[0008] The second layer has a hollow structure, and there is no gap between the inner periphery of the second layer and the outer periphery of the first layer, and there is no gap between the outer periphery of the second layer and the inner periphery of the third layer.

[0009] In this technical solution, three layers of flexible material are radially nested to form a progressive buffer. The first layer provides a tightly fitting space for the sensor, preventing it from shaking or shifting. The hollow structure in the second layer forms a compressible "deformation channel," which can enhance the buffering capacity by collapsing and deforming when subjected to a large impact. The outermost third layer can further disperse the impact and enhance the protective effect of the protective sleeve.

[0010] The second layer has no gaps between it and the first and third layers to avoid frictional damage caused by interlayer slippage or misalignment.

[0011] Preferably, the inner peripheral side of the second layer is connected to the outer peripheral side of the first layer, and the outer peripheral side of the second layer is connected to the inner peripheral side of the third layer.

[0012] In this technical solution, by setting the second layer to be connected to both the first and third layers, frictional damage caused by interlayer sliding or misalignment is further avoided.

[0013] Preferably, the second layer has a honeycomb structure.

[0014] In this technical solution, the cellular unit forms a large number of compressible cavities in both the radial and circumferential directions, which has good buffering capacity.

[0015] Preferably, the outer periphery of the first layer and the inner periphery of the third layer are both cylindrical. Along the axial direction of the protective sleeve of the sensor, there is a buffer space between the outer periphery of the first layer and the inner periphery of the third layer, and the second layer extends into the buffer space.

[0016] In this technical solution, by setting a buffer space and extending the second layer into the buffer space, the buffering effect of the protective sleeve when subjected to axial impact can be improved.

[0017] Preferably, the second layer includes a plurality of connecting portions, each of which is connected to the first layer and the third layer at both ends, and there is a gap between adjacent connecting portions.

[0018] In this technical solution, by setting connecting parts, the gaps between the connecting parts form a hollow structure. Each connecting part can be bent or compressed independently, which can form multi-point and multi-directional micro-deformation, disperse stress, and avoid overall shear failure.

[0019] Preferably, the included angle between adjacent connecting portions is not 0.

[0020] In this technical solution, the included angle makes the connection part inclined support or cross shape. Regardless of radial, circumferential or axial impact, the connection part is under pressure or shear, resulting in better buffering effect.

[0021] Preferably, the second layer includes a first portion extending circumferentially along the protective sleeve of the sensor and a second portion located within the buffer space, a plurality of connecting portions forming the first portion extending radially, and a plurality of connecting portions forming the second portion extending axially.

[0022] In this technical solution, the middle position of the protective sleeve along the axial direction is usually susceptible to radial impact, while the two ends are usually susceptible to axial impact. Therefore, the connecting part of the first part is set to extend radially, and the connecting part of the second part is set to extend axially. The structure is simpler and has a stronger targeted impact resistance to this area, with a better buffering effect.

[0023] Preferably, the protective sleeve of the sensor has an opening that extends inward from the outer periphery of the third layer into the cavity. The size of the opening is smaller than the size of the sensor. The opening is used to insert the sensor into the cavity or to remove the sensor from the cavity.

[0024] In this technical solution, by setting the opening to be smaller than the size of the sensor, the sensor can be placed into the cavity through the elastic deformation of the protective sleeve, and the sensor is not easy to fall out without the need for a cover.

[0025] Preferably, the cavity includes a first cavity and a second cavity, the first cavity being used to accommodate the main body of the sensor, the second cavity being used to accommodate the sensing part of the sensor, the second cavity being in communication with the outside, the size of the first cavity being smaller than the size of the main body, and the size of the second cavity being larger than the size of the sensing part.

[0026] In this technical solution, by setting the size of the first cavity to be smaller than the size of the main body, the protective sleeve can better wrap the main body. By setting the size of the second cavity to be larger than the size of the main body, the outer side of the sensing part can come into contact with the environment to be detected, resulting in more accurate detection results.

[0027] Preferably, the first layer, the second layer, and the third layer are all made of silicone.

[0028] The positive and progressive effects of this utility model are as follows: by radially nesting three layers of flexible material, a progressive buffer is formed. The first layer cavity provides a tightly fitting housing space for the sensor, preventing the sensor from shaking or shifting. The hollow structure in the second layer forms a compressible "deformation channel", which can enhance the buffering capacity by collapsing and deforming when subjected to a large impact. The outermost third layer can further disperse the impact and enhance the protective effect of the protective sleeve. Attached Figure Description

[0029] Figure 1This is a schematic diagram (I) of the protective sleeve for the sensor in Embodiment 1 of this utility model.

[0030] Figure 2 This is a schematic diagram (II) of the structure of the protective sleeve for the sensor in Embodiment 1 of this utility model.

[0031] Figure 3 This is a schematic diagram of the protective sleeve for the sensor in Embodiment 2 of this utility model.

[0032] Figure 4 This is a schematic diagram of the structure of the protective sleeve for the sensor in Embodiment 3 of this utility model.

[0033] Protective case 100

[0034] First floor 1

[0035] Second layer 2

[0036] Connecting part 21

[0037] Hollow structure 22

[0038] Third layer 3

[0039] Inner cavity 101

[0040] First cavity 1011

[0041] Second cavity 1012

[0042] Opening 102

[0043] Sensor 200

[0044] Main body 01

[0045] Sensing section 02 Detailed Implementation

[0046] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0047] Example 1

[0048] like Figure 1 and Figure 2As shown, this embodiment provides a protective sleeve 100 for a sensor 200. The protective sleeve 100 includes a first layer 1, a second layer 2, and a third layer 3 sequentially arranged radially from the inside to the outside of the protective sleeve 100. All three layers are made of flexible material. The first layer 1 has an internal cavity for accommodating the sensor 200. The second layer 2 has a perforated structure 22. There is no gap between the inner periphery of the second layer 2 and the outer periphery of the first layer 1, and no gap between the outer periphery of the second layer 2 and the inner periphery of the third layer 3. The three radially arranged flexible layers form a progressive buffer. The cavity of the first layer 1 provides a tightly fitting space for the sensor 200, preventing it from shaking or shifting. The perforated structure 22 in the second layer 2 forms a compressible "deformation channel," which can collapse and deform to enhance buffering capacity under significant impact. The outermost third layer 3 further disperses the impact, enhancing the protective effect of the protective sleeve 100.

[0049] There are no gaps between the second layer 2 and the first layer 1 and the third layer 3, to avoid friction damage caused by interlayer sliding or misalignment.

[0050] Specifically, in this embodiment, the first layer 1, the second layer 2, and the third layer 3 are all made of silicone.

[0051] Of course, in other embodiments, the first layer 1, the second layer 2, and the third layer 3 can also be made of other soft and elastic materials available in the market, which will not be elaborated here.

[0052] In this embodiment, the inner peripheral side of the second layer 2 is connected to the outer peripheral side of the first layer 1, and the outer peripheral side of the second layer 2 is connected to the inner peripheral side of the third layer 3. By setting the second layer 2 to be connected to both the first layer 1 and the third layer 3, frictional damage caused by interlayer sliding or misalignment is further avoided.

[0053] Of course, in other embodiments, the first layer 1, the second layer 2 and the third layer 3 can also be connected, and an interference fit can be used to avoid interlayer slippage, which will not be elaborated here.

[0054] Specifically, in this embodiment, the second layer 2 is a honeycomb structure. The honeycomb cells simultaneously form a large number of compressible cavities in both the radial and circumferential directions, providing excellent buffering capabilities.

[0055] Of course, in other embodiments, the second layer 2 can also be other structural forms of the specific hollow structure 22.

[0056] In this embodiment, the outer periphery of the first layer 1 and the inner periphery of the third layer 3 are both cylindrical. Along the axial direction of the protective sleeve 100 of the sensor 200, there is a buffer space between the outer periphery of the first layer 1 and the inner periphery of the third layer 3, and the second layer 2 extends into the buffer space. By providing a buffer space, the second layer 2 extending into the buffer space can improve the buffering effect of the protective sleeve 100 when subjected to axial impact.

[0057] Of course, in other embodiments, the second layer 2 may only be covered circumferentially on the protective cover 100, which will not be elaborated here.

[0058] In this embodiment, the protective sleeve 100 of the sensor 200 has an opening 102 that extends inward from the outer periphery of the third layer 3 into the cavity. The size of the opening 102 is smaller than the size of the sensor 200. The opening 102 is used to insert the sensor 200 into the cavity or to remove the sensor 200 from the cavity. By setting the opening 102 to be smaller than the size of the sensor 200, the sensor 200 can be inserted into the cavity through the elastic deformation of the protective sleeve 100, and the sensor 200 is less likely to fall out without the need for a cap.

[0059] Specifically, the cavity includes a first cavity 1011 and a second cavity 1012. The first cavity 1011 is used to accommodate the main body 01 of the sensor 200, and the second cavity 1012 is used to accommodate the sensing part 02 of the sensor 200. The second cavity 1012 is connected to the outside. The size of the first cavity 1011 is smaller than the size of the main body 01, and the size of the second cavity 1012 is larger than the size of the sensing part 02. By setting the size of the first cavity 1011 to be smaller than the size of the main body 01, the protective sleeve 100 can provide better coverage for the main body 01. By setting the size of the second cavity 1012 to be larger than the size of the main body 01, the outer side of the sensing part 02 can contact the environment to be detected, resulting in more accurate detection results.

[0060] Example 2

[0061] like Figure 3 As shown, this embodiment provides a protective sleeve 100 for a sensor 200. The other structures of this protective sleeve 100 are the same as those of the protective sleeve 100 for the sensor 200 in Embodiment 1. The difference lies in that, in this embodiment, the second layer 2 includes multiple connecting portions 21. Each connecting portion 21 is connected to the first layer 1 and the third layer 3 at both ends, and there is a gap between adjacent connecting portions 21. By providing the connecting portions 21, the gaps between the connecting portions 21 form a hollow structure 22. Each connecting portion 21 can be independently bent or compressed, enabling multi-point, multi-directional micro-deformation, dispersing stress, and preventing overall shear failure.

[0062] In this design, the included angle between adjacent connecting parts 21 is not zero, and adjacent connecting parts 21 can form triangular or approximately trapezoidal supports with the outer periphery of the first layer 1 or the inner periphery of the third layer 3. By setting the included angle between adjacent connecting parts 21 to be non-zero, the included angle makes the connecting parts 21 inclined or intersecting. Regardless of radial, circumferential, or axial impact, the connecting parts 21 are always under pressure or shear, resulting in better buffering effect.

[0063] Example 3

[0064] like Figure 4 As shown, this embodiment provides a protective sleeve 100 for a sensor 200. The other structures of the protective sleeve 100 are the same as those of the protective sleeve 100 for the sensor 200 in Embodiment 1. The difference lies in that, in this embodiment, the second layer 2 includes a first portion extending circumferentially along the protective sleeve 100 and a second portion located within a buffer space. Multiple connecting portions 21 forming the first portion extend radially, and multiple connecting portions 21 forming the second portion extend axially. The middle position of the protective sleeve 100 along the axial direction is typically susceptible to radial impact, while the two ends are typically susceptible to axial impact. Therefore, setting the connecting portions 21 of the first portion to extend radially and the connecting portions 21 of the second portion to extend axially results in a simpler structure with stronger impact resistance in this area and better buffering effect.

[0065] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A protective cover for a sensor, characterized in that, The protective sleeve of the sensor includes a first layer, a second layer, and a third layer that are sequentially fitted from the inside to the outside along the radial direction of the protective sleeve of the sensor. The first layer, the second layer, and the third layer are all made of flexible material. The first layer has a cavity inside, which is used to house the sensor; The second layer has a hollow structure, and there is no gap between the inner periphery of the second layer and the outer periphery of the first layer, and there is no gap between the outer periphery of the second layer and the inner periphery of the third layer.

2. The protective cover for a sensor of claim 1, wherein, The inner peripheral side of the second layer is connected to the outer peripheral side of the first layer, and the outer peripheral side of the second layer is connected to the inner peripheral side of the third layer.

3. The protective cover for a sensor of claim 1, wherein, The second layer has a honeycomb structure.

4. The protective cover for a sensor of claim 1, wherein, The outer periphery of the first layer and the inner periphery of the third layer are both cylindrical. Along the axial direction of the protective sleeve of the sensor, there is a buffer space between the outer periphery of the first layer and the inner periphery of the third layer, and the second layer extends into the buffer space.

5. A protective cover for a sensor as claimed in claim 4, wherein, The second layer includes multiple connecting parts, each of which is connected to the first layer and the third layer at both ends, and there is a gap between adjacent connecting parts.

6. A protective cover for a sensor as claimed in claim 5, wherein, The included angle between adjacent connecting parts is not 0.

7. The protective cover for a sensor of claim 5, wherein, The second layer includes a first portion extending circumferentially along the protective sleeve of the sensor and a second portion located within the buffer space, with a plurality of connecting portions forming the first portion extending radially and a plurality of connecting portions forming the second portion extending axially.

8. The protective cover for a sensor of claim 1, wherein, The protective sleeve of the sensor has an opening that extends inward from the outer periphery of the third layer into the cavity. The size of the opening is smaller than the size of the sensor. The opening is used to place the sensor into the cavity or to remove the sensor from the cavity.

9. A protective cover for a sensor as claimed in claim 8, wherein, The cavity includes a first cavity and a second cavity. The first cavity is used to accommodate the main body of the sensor, and the second cavity is used to accommodate the sensing part of the sensor. The second cavity is in communication with the outside. The size of the first cavity is smaller than the size of the main body, and the size of the second cavity is larger than the size of the sensing part.

10. The protective cover for a sensor of claim 1, wherein, The first layer, the second layer, and the third layer are all made of silicone.

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