Vibration-resistant temperature sensor

Abstract

The utility model provides a vibration-resistant temperature sensor which comprises a protective tube, a fastening sleeve is arranged on the protective tube, a connecting sleeve is further sleeved on the outer wall of the fastening sleeve, the fastening sleeve is in sliding contact with the connecting sleeve, the connecting sleeve is used for being connected with external tested equipment, and a limiting ring is arranged on the outer wall of one end of the fastening sleeve. The outer ring of the limiting ring is in sliding contact with the inner wall of the connecting sleeve, the inner wall of the connecting sleeve is provided with a mounting ring, the inner wall of the mounting ring is in sliding contact with the outer wall of the fastening sleeve, and a pressure spring is arranged between the limiting ring and the mounting ring. The fastening sleeve arranged on the protection tube and the connecting sleeve arranged on the outer wall of the fastening sleeve in a sleeving mode form a structure capable of sliding relatively. The sliding contact design between the fastening sleeve and the connecting sleeve allows the sensor to have certain movement space when the sensor is subjected to external vibration, the design is beneficial to reducing direct impact of vibration on internal elements of the sensor, and the elements are prevented from being damaged due to vibration.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensor equipment field especially, it is a kind of vibration-resistant temperature sensor. BACKGROUND

[0002] In the actual operation scene of compressor equipment, the product for temperature measurement is long plagued. Strong vibration produced when compressor operates, like ruthless "destroyer", frequently cause internal element of temperature measurement product to suffer damage, and connecting contact point is also prone to fracture phenomenon. These problems eventually lead to temperature measurement function failure, cannot work normally, even if the existing product is endowed with contact point buffer length by reverse element, it has certain effect to reduce part vibration influence, but under long-term high-intensity vibration impact, element still can appear damage due to various complex stress actions, cannot avoid the situation that element is damaged due to vibration thoroughly. SUMMARY

[0003] In view of the above-mentioned shortcomings of prior art, the utility model aims at providing a vibration-resistant temperature sensor, which solves the technical problem that in the prior art, under long-term high-intensity vibration impact, the element still appears damage due to various complex stress actions, and the element cannot be thoroughly avoided from being damaged due to vibration.

[0004] To achieve the above object and other related objects, the utility model provides a vibration-resistant temperature sensor, comprising:

[0005] A protective tube;

[0006] A fastening sleeve is arranged on the protective tube, and a connecting sleeve is further sleeved on the outer wall of the fastening sleeve, the fastening sleeve and the connecting sleeve are in sliding contact, and the connecting sleeve is used for connecting an external measured device;

[0007] One end of the outer wall of the fastening sleeve is provided with a limiting ring, the outer ring of the limiting ring is in sliding contact with the inner wall of the connecting sleeve, an installation ring is arranged on the inner wall of the connecting sleeve, the inner wall of the installation ring is in sliding contact with the outer wall of the fastening sleeve, and a compression spring is arranged between the limiting ring and the installation ring.

[0008] The advantages of the above technical scheme are that in the vibration-resistant temperature sensor, the fastening sleeve arranged on the protective tube and the connecting sleeve sleeved on the outer wall of the fastening sleeve constitute a structure that can slide relatively. The sliding contact design between the fastening sleeve and the connecting sleeve allows the sensor to have a certain activity allowance when subjected to external vibration, which helps to reduce the direct impact of vibration on the internal elements of the sensor and avoid damage of the elements due to vibration.

[0009] Optionally, a lead wire is connected to one end of the protective tube, and a temperature measurement element is arranged in the other end of the protective tube.

[0010] Optionally, a buffer unit is filled between the temperature measuring element and the protection tube.

[0011] Optionally, the buffer unit is silica gel.

[0012] Optionally, a wire spring is sleeved at the connection between the lead wire and the protection tube.

[0013] Optionally, mechanical pressure connection is adopted between the protection tube and the lead wire.

[0014] Optionally, a sealing ring is arranged between the mounting ring and the fastening sleeve.

[0015] Optionally, a fixing member is further arranged on the protection tube, the fixing member is cylindrical, the fixing member is sleeved on the protection tube, and one end of the fixing member close to the connecting sleeve is connected with the fastening sleeve away from the one end of the limiting ring.

[0016] Optionally, a gasket is further arranged between the end face of the fastening sleeve away from the limiting ring and the fixing member.

[0017] Optionally, the inner wall of the fixing member is threadedly connected with the fastening sleeve.

[0018] As described above, the vibration-resistant temperature sensor has the following beneficial effects: in the vibration-resistant temperature sensor, the fastening sleeve arranged on the protection tube and the connecting sleeve sleeved on the outer wall of the fastening sleeve constitute a structure that can slide relative to each other. The sliding contact design between the fastening sleeve and the connecting sleeve allows the sensor to have a certain activity allowance when subjected to external vibration, which helps to reduce the direct impact of vibration on the internal elements of the sensor and avoid damage of the elements due to vibration. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 A cross-sectional structure schematic diagram in one embodiment of the utility model is shown;

[0020] Fig. 2 A local cross-sectional structure schematic diagram in one embodiment of the utility model is shown;

[0021] Fig. 3 A local cross-sectional structure schematic diagram in one embodiment of the utility model is shown.

[0022] PART NUMBER EXPLANATION

[0023] 1 protection tube

[0024] 101 lead wire

[0025] 102 temperature measuring element

[0026] 103 buffer unit

[0027] 2 fastening sleeve

[0028] 3 connecting sleeve

[0029] 4 fixing member DETAILED DESCRIPTION

[0030] The other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. The present application can also be implemented or applied in other different specific embodiments, and each detail in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.

[0031] Referring to Figs. 1 to 3 Please note that the diagrams provided in the present embodiment only illustrate the basic concept of the present application in a schematic manner, and only show the components related to the present application in the diagrams, not the number, shape and size of the components when actually implemented. The shape, number and proportion of each component when implemented can be randomly changed, and the layout pattern of the components can be more complex. The structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the present specification for understanding and reading by those skilled in the art, and do not limit the implementation conditions of the present application, so they do not have technical substantive significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" in the present specification are only for the convenience of understanding and are not used to limit the scope of the present application. The change or adjustment of the relative relationship without substantially changing the technical content is also considered as the scope of the present application.

[0032] Referring to Figs. 1 to 3 The present application provides a vibration-resistant temperature sensor, which comprises:

[0033] A protective tube 1;

[0034] A fastening sleeve 2 is arranged on the protective tube 1, and a connecting sleeve 3 is further arranged on the outer wall of the fastening sleeve 2. The fastening sleeve 2 and the connecting sleeve 3 are in sliding contact, and the connecting sleeve 3 is used to connect an external measured device;

[0035] The outer wall of one end of the fastening sleeve 2 is provided with a limiting ring, the outer ring of the limiting ring is in sliding contact with the inner wall of the connecting sleeve 3, the inner wall of the mounting ring is in sliding contact with the outer wall of the fastening sleeve 2, and the spring is arranged between the limiting ring and the mounting ring.

[0036] It should be further explained that in the vibration-resistant temperature sensor, the fastening sleeve 2 arranged on the protective tube 1 and the connecting sleeve 3 sleeved on the outer wall of the fastening sleeve 2 constitute a structure that can slide relative to each other. The sliding contact design between the fastening sleeve 2 and the connecting sleeve 3 allows the sensor to have a certain activity allowance when subjected to external vibration, which helps to reduce the direct impact of vibration on the internal elements of the sensor. At the same time, the limiting ring arranged on the outer wall of one end of the fastening sleeve 2 and the mounting ring arranged on the inner wall of the connecting sleeve 3, and the spring arranged therebetween, play a key buffering and resetting role. When the sensor is subjected to vibration impact, the spring can absorb part of the vibration energy and reduce the impact of vibration on the internal elements of the sensor through its elastic deformation. In addition, the design of the limiting ring and the mounting ring also ensures that the relative position between the fastening sleeve 2 and the connecting sleeve 3 is within a certain range, preventing loose connection or damage caused by excessive sliding.

[0037] Further, the fastening sleeve 2 and the limiting ring are integrally formed, and the fastening sleeve 2 and the connecting sleeve 3 are integrally formed.

[0038] For example, the protective tube 1 is connected with a lead wire 101 at one end, and a temperature measuring element 102 is arranged in the other end of the protective tube 1.

[0039] It should be further explained that the lead wire 101 is connected at one end of the protective tube 1, mainly for transmitting the temperature signal measured by the temperature measuring element 102 outwards for reading and processing by external equipment. As a signal transmission medium, the lead wire 101 ensures that the temperature measuring signal can be accurately and timely transmitted to subsequent processing or display equipment. The temperature measuring element 102 is arranged in the other end of the protective tube 1, which is the core part of the temperature sensor, responsible for directly contacting and sensing the temperature of the measured object. The selection and design of the temperature measuring element 102 are usually based on its temperature measuring range, accuracy, stability and response speed, etc. to ensure that the true temperature of the measured object can be accurately reflected.

[0040] For example, the temperature measuring element 102 and the protective tube 1 are filled with a buffer unit 103.

[0041] It should be noted that the buffer unit 103 can quickly absorb and disperse vibration energy like an elastic buffer pad, providing reliable buffer protection for the temperature measuring element 102, avoiding damage to the temperature measuring element 102 due to vibration. Due to the presence of the buffer unit 103, the stability of the temperature measuring element 102 in the vibration environment is enhanced, so that the temperature of the measured object can be more accurately measured. By reducing the impact of vibration on the temperature measuring element 102, the buffer unit 103 helps to prolong the service life of the temperature sensor and reduce maintenance costs.

[0042] Illustratively, the buffer unit 103 is silica gel.

[0043] It should be noted that silica gel has good elasticity and recovery, and can quickly recover to its original state after being subjected to vibration impact, continuously providing stable buffer protection for the temperature measuring element 102. Silica gel is an excellent insulating material, which is filled between the temperature measuring element 102 and the protective tube and also serves as an insulating material to prevent current or heat from interfering with the temperature measuring element 102. Due to the buffering effect of silica gel, the stability of the temperature sensor in the vibration environment is significantly enhanced, enabling more accurate measurement of the temperature of the measured object and prolonging the service life. Silica gel can maintain stable performance under different temperature and pressure environments, so it is suitable for various harsh industrial environments.

[0044] Illustratively, the lead wire 101 is connected to the protective tube 1 with a wire spring.

[0045] It should be noted that the wire spring can tightly wrap around the connection between the lead wire 101 and the protective tube, forming a stable protective layer to prevent loosening or displacement of the connection during vibration. The wire spring has a certain elasticity and recovery, which can play a buffering role when subjected to vibration impact, reducing the impact of vibration on the connection, thereby improving the vibration resistance of the temperature sensor. By reducing the wear and impact of vibration on the connection, the wire spring helps to prolong the service life of the temperature sensor and reduce repair and replacement costs.

[0046] Illustratively, the protective tube 1 and the lead wire 101 are connected by mechanical pressure.

[0047] It should be noted that mechanical pressure connects the lead wire 101 to the protective tube by precise mechanical operation, forming a tight and stable connection. This connection method can effectively prevent loosening or displacement of the connection due to vibration or external forces, ensuring the stability and reliability of the connection.

[0048] Illustratively, a sealing ring is provided between the mounting ring and the fastening sleeve 2.

[0049] It should be noted that by setting a sealing ring between the mounting ring and the fastening sleeve 2, the intrusion of external media into the sensor through the gap between the connecting sleeve 3 and the fastening sleeve 2 can be effectively prevented. The sealing ring is usually made of elastic material, has good elasticity and sealing performance, can adapt to the relative movement between the fastening sleeve 2 and the connecting sleeve 3, and can maintain long-term sealing effect.

[0050] Exemplarily, a fixing member 4 is further provided on the protective tube 1, which is cylindrical, and is sleeved on the protective tube 1, and is connected to the end of the fastening sleeve 2 away from the limiting ring.

[0051] It should be noted that the fixing member 4 is cylindrical, is sleeved on the protective tube 1 and is connected to the fastening sleeve 2, forming a stable support structure. This helps to enhance the structural stability of the entire vibration-resistant temperature sensor, especially in a vibrating environment, which can reduce structural loosening or deformation caused by vibration, thereby improving the reliability and service life of the sensor. By connecting the fastening sleeve 2 and the protective tube 1 more firmly together through the fixing member 4, the vibration resistance of the sensor can be further improved. In high-strength vibrating equipment such as compressors, this design can effectively reduce the influence of vibration on internal components of the sensor, protecting key components such as the temperature measuring element 102 and the lead wire 101 from damage. The presence of the fixing member 4 can also positively affect the performance of the sensor. For example, by adjusting the position and size of the fixing member 4, the vibration response characteristics of the sensor can be further optimized to better adapt to the needs of specific application scenarios.

[0052] Exemplarily, a gasket is further provided between the end face of the fastening sleeve 2 away from the limiting ring and the fixing member 4.

[0053] It should be noted that the gasket can effectively distribute the pressure between the fastening sleeve 2 and the fixing member 4, avoiding wear or damage caused by direct contact. In a vibrating environment, this pressure dispersion effect is particularly important, as it can extend the service life of the sensor. By selecting an appropriate gasket thickness, the tightness between the fastening sleeve 2 and the fixing member 4 can be fine-tuned. This helps to ensure that the sensor maintains appropriate tension during installation and use, thereby further optimizing its vibration damping performance. The gasket also provides a certain amount of frictional resistance, which helps to prevent the fastening sleeve 2 and the fixing member 4 from loosening in a long-term vibrating environment.

[0054] Exemplarily, the inner wall of the fixing member 4 is threadedly connected to the fastening sleeve 2.

[0055] It should be further explained that the threaded connection allows the fastener 4 and the fastening sleeve 2 to be fastened or loosened through a rotating action, thereby simplifying the installation and disassembly process. This connection method does not require additional tools or complex operations, making the assembly and maintenance of the sensor more convenient. The threaded connection can generate a large friction force, ensuring a stable connection between the fastener 4 and the fastening sleeve 2.

[0056] In summary, the utility model discloses a kind of vibration-resistant temperature sensors, fastening sleeve 2 and the connecting sleeve 3 of the sleeve of the outer wall of fastening sleeve 2 being set on protection pipe 1 are constituted a relatively sliding structure. The sliding contact design between fastening sleeve 2 and connecting sleeve 3 allows the sensor to have a certain activity allowance when subjected to external vibration. This design helps to reduce the direct impact of vibration on internal elements of the sensor.

[0057] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the art without departing from the spirit and technical thought disclosed by the utility model shall be covered by the claims of the utility model.

Claims

1. A shock resistant temperature sensor characterized by, The utility model relates to a temperature measuring device for external equipment, which comprises a protective tube, a fastening sleeve provided on the protective tube, a connecting sleeve provided on the outer wall of the fastening sleeve, a sliding contact between the fastening sleeve and the connecting sleeve, the connecting sleeve being used for connecting external equipment to be measured, a limiting ring provided on the outer wall of one end of the fastening sleeve, a sliding contact between the outer ring of the limiting ring and the inner wall of the connecting sleeve, an installation ring provided on the inner wall of the connecting sleeve, a sliding contact between the inner wall of the installation ring and the outer wall of the fastening sleeve, a compression spring provided between the limiting ring and the installation ring, a lead-in wire connected to one end of the protective tube, a temperature measuring element provided in the other end of the protective tube, a buffer unit filled between the temperature measuring element and the protective tube, the buffer unit being silica gel, a wire spring provided outside the connection between the lead-in wire and the protective tube, a mechanical pressure joint between the protective tube and the lead-in wire, a sealing ring provided between the installation ring and the fastening sleeve, a fixing member provided on the protective tube, the fixing member being cylindrical, the fixing member being sleeved on the protective tube, one end of the fixing member close to the connecting sleeve being connected to the other end of the fastening sleeve away from the limiting ring, a gasket provided between the end face of the fastening sleeve away from the limiting ring and the fixing member, and a screw thread connection between the inner wall of the fixing member and the fastening sleeve. ​ ​ ​ 2. A shock resistant temperature sensor according to claim 1, wherein: ​ 3. A shock resistant temperature sensor according to claim 2, wherein: ​ 4. A shock resistant temperature sensor according to claim 3, wherein: ​ 5. A shock resistant temperature sensor according to claim 4, wherein: ​ 6. A shock resistant temperature sensor according to claim 5, wherein: ​ 7. A shock resistant temperature sensor according to claim 6, wherein: ​ 8. A shock resistant temperature sensor according to claim 7, wherein: ​ 9. A shock resistant temperature sensor according to claim 8, wherein: ​ 10. A shock resistant temperature sensor according to claim 9, wherein: ​

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