External protection device for temperature sensor

Abstract

The utility model relates to the technical field of temperature sensors, in particular to an external protection device of a temperature sensor, which comprises a sensor body, a temperature measuring probe, an electric telescopic rod, an inner housing, a guide block and an external protection assembly, the electric telescopic rod is arranged on the outer side of the sensor body, the inner housing is sleeved outside the temperature measuring probe, and the guide block is arranged on the outer side of the sensor body. The outer protection assembly is arranged outside the inner housing in a sleeving mode and comprises an outer housing, a connecting plate, a clamping shaft, a rotating rod, fan blades and a connecting block, when the temperature sensor outer protection device does not conduct temperature detection, vent holes in the surface of the outer housing and vent holes in the surface of the inner housing are formed in a staggered mode, and therefore a temperature measuring probe is located in a relatively closed space; and when detection is needed, the ventilation holes in the surfaces of the outer cover shell and the inner cover shell are overlapped, and the bottom fan blades are controlled to rotate, so that air circulation is effectively promoted, and the detection effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of temperature sensor technology, and in particular to an external protection device for a temperature sensor. Background Technology

[0002] A temperature sensor, as the name suggests, is a device that can sense the temperature of an object and convert it into a measurable and transmittable signal. These signals are usually electrical signals (such as changes in voltage, current, or resistance), facilitating subsequent processing, display, or control. Through its unique sensitive element, the temperature sensor achieves the conversion of non-electrical quantities (temperature) into electrical quantities, serving as a crucial bridge between modern information technology and industrial control.

[0003] Temperature sensors used in harsh environments may suffer from dust, oil, and other contaminants adhering to their probe surfaces, affecting their detection performance, significantly impacting measurement accuracy, and even damaging the sensors. Therefore, protective devices need to be added to the exterior of temperature sensors used in such harsh environments. Existing protective devices provide some obstruction, hindering airflow and requiring more time to measure ambient temperature, which in some cases affects the accuracy of the measurements. Thus, it is necessary to increase both protection and airflow to facilitate probe detection. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing an external protection device for a temperature sensor.

[0005] This utility model is achieved through the following technical solution:

[0006] An external protection device for a temperature sensor includes a sensor body, a temperature probe, an electric telescopic rod, an inner cover, a guide block, and an outer protective assembly. The electric telescopic rod is disposed outside the sensor body, the inner cover is fitted over the temperature probe, and the outer protective assembly is fitted over the inner cover. The outer protective assembly includes an outer cover, a connecting plate, a retaining shaft, a rotating rod, a fan blade, and a connecting block. The connecting plate is fixedly disposed on the inner bottom of the outer cover, the retaining shaft is fixedly disposed on the top of the connecting plate, the rotating rod is movably connected to the retaining shaft, the fan blade is fixedly disposed on the top of the rotating rod, and the connecting block is fixedly disposed on the top outer side of the outer cover.

[0007] In a preferred embodiment of the present invention, the bottom of the inner cover is provided with a locking hole that cooperates with the rotating rod, and the guide block is fixedly disposed on the inner wall of the locking hole at the bottom of the inner cover.

[0008] In a preferred embodiment of this utility model, a spiral groove is provided on the surface of the rotating rod, and the guide block is engaged in the groove on the outer side of the rotating rod;

[0009] As the rotating rod moves up and down inside the slot, the movable rotating rod will rotate and rise according to the spiral slot on its surface under the influence of the guide block, thereby causing the fan blade at the top of the rotating rod to rotate.

[0010] In a preferred embodiment of this utility model, ventilation holes are provided on the surfaces of the inner and outer covers, and the ventilation holes on the surfaces of the inner and outer covers are arranged alternately.

[0011] When the ventilation holes on the surfaces of the inner and outer covers overlap, internal air can circulate, allowing the temperature probe to effectively measure the external temperature. When the ventilation holes on the surfaces of the two covers intersect, the inner and outer covers effectively protect the temperature probe and reduce the residue of adhering substances on the surface of the temperature probe.

[0012] In a preferred embodiment of this utility model, the telescopic end of the electric telescopic rod is fixed to the connecting block, and the inner top of the inner cover is sleeved on the outer bottom of the sensor body.

[0013] The beneficial effects of this utility model are:

[0014] When the temperature sensor is not detecting temperature, the ventilation holes on the outer and inner covers are staggered, thus placing the temperature probe in a relatively sealed space. This reduces the adhesion of contaminants to the probe surface, ensuring the sensor's detection accuracy and effectively extending its service life. When detection is required, the ventilation holes on the outer and inner covers overlap, and the bottom fan blades are controlled to rotate, effectively promoting air circulation and ensuring detection results. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the external protection device for the temperature sensor of this utility model;

[0016] Figure 2 This is a schematic diagram of the outer casing of the temperature sensor outer protection device of this utility model in the open state.

[0017] Figure 3 This is a schematic diagram of the internal structure of the external protection component of the temperature sensor external protection device of this utility model;

[0018] Figure 4 This is a schematic diagram of the inner casing structure of the temperature sensor outer protection device of this utility model.

[0019] In the diagram: 1. Sensor body; 2. Temperature probe; 3. Electric telescopic rod; 4. Inner cover; 5. Guide block; 6. Outer protective assembly; 61. Outer cover; 62. Connecting plate; 63. Shaft; 64. Rotating rod; 65. Fan blade; 66. Connecting block. Detailed Implementation

[0020] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0021] like Figure 1-4 The temperature sensor external protection device shown includes a sensor body 1, a temperature probe 2, an electric telescopic rod 3, an inner cover 4, a guide block 5, and an external protection assembly 6. The electric telescopic rod 3 is disposed on the outside of the sensor body 1, the inner cover 4 is sleeved on the outside of the temperature probe 2, and the external protection assembly 6 is sleeved on the outside of the inner cover 4. The external protection assembly 6 includes an outer cover 61, a connecting plate 62, a retaining shaft 63, a rotating rod 64, a fan blade 65, and a connecting block 66. The connecting plate 62 is fixedly disposed on the bottom inner side of the outer cover 61, the retaining shaft 63 is fixedly disposed on the top of the connecting plate 62, the rotating rod 64 is movably connected to the retaining shaft 63, the fan blade 65 is fixedly disposed on the top of the rotating rod 64, and the connecting block 66 is fixed to the top of the outer side of the outer cover 61.

[0022] Specifically, the bottom of the inner cover 4 has a locking hole that mates with the rotating rod 64. The guide block 5 is fixedly installed on the inner wall of the locking hole at the bottom of the inner cover 4. The surface of the rotating rod 64 has a spiral groove. The guide block 5 is locked in the outer groove of the rotating rod 64. The surfaces of the inner cover 4 and the outer cover 61 have ventilation holes. The ventilation holes on the surfaces of the inner cover 4 and the outer cover 61 are staggered. The telescopic end of the electric telescopic rod 3 is fixed to the connecting block 66. The inner top of the inner cover 4 is sleeved on the outer bottom of the sensor body 1.

[0023] In this embodiment, the temperature sensor is installed in a harsh operating environment. When temperature detection is not required, the ventilation holes on the surface of the outer casing 61 and the ventilation holes on the surface of the inner casing 4 are staggered, and the outer casing 61 and the inner casing 4 form a relatively sealed space, thereby effectively protecting the internal temperature probe 2. Dust, oil, and other contaminants in the harsh environment will rarely adhere to the surface of the temperature probe 2, thus protecting the temperature probe 2.

[0024] Furthermore, when the temperature sensor needs to operate, the electric telescopic rod 3 on the outside of the sensor body 1 extends, pushing the outer casing 61 down, so that the ventilation holes on the surface of the outer casing 61 overlap with the ventilation holes on the surface of the inner casing 4, thereby facilitating the detection of the ambient temperature to be measured. During this process, as the outer casing 61 descends, the rotating rod 64, which is movably connected to the top locking shaft 63 of the connecting plate 62, is guided by the spiral groove on the surface of the rotating rod 64. Under the action of the guide block 5 inside the bottom locking hole of the inner casing 4, the rotating rod 64 rotates, thereby driving its top fan blade 65 to rotate, achieving the effect of promoting the circulation of air inside and outside, thereby better facilitating the detection of ambient temperature by the temperature measuring probe 2 and ensuring the accuracy of the detection results.

[0025] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0026] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A temperature sensor external protection device, comprising a sensor body (1), a temperature probe (2), an electric telescopic rod (3), an inner cover (4), a guide block (5), and an external protection assembly (6), characterized in that: The electric telescopic rod (3) is located outside the sensor body (1), the inner cover (4) is fitted outside the temperature probe (2), and the outer protective component (6) is fitted outside the inner cover (4). The outer protective assembly (6) includes an outer shell (61), a connecting plate (62), a retaining shaft (63), a rotating rod (64), a fan blade (65), and a connecting block (66). The connecting plate (62) is fixedly disposed on the inner bottom of the outer shell (61), the retaining shaft (63) is fixedly disposed on the top of the connecting plate (62), the rotating rod (64) is movably connected to the retaining shaft (63), the fan blade (65) is fixedly disposed on the top of the rotating rod (64), and the connecting block (66) is fixed to the top outer side of the outer shell (61).

2. The external protection device for the temperature sensor according to claim 1, characterized in that: The bottom of the inner cover (4) is provided with a locking hole that cooperates with the rotating rod (64), and the guide block (5) is fixedly installed on the inner wall of the locking hole at the bottom of the inner cover (4).

3. The external protection device for the temperature sensor according to claim 1, characterized in that: The rotating rod (64) has a spiral groove on its surface, and the guide block (5) is engaged in the groove on the outside of the rotating rod (64).

4. The external protection device for the temperature sensor according to claim 1, characterized in that: Ventilation holes are provided on the surfaces of the inner shell (4) and the outer shell (61), and the ventilation holes on the surfaces of the inner shell (4) and the outer shell (61) are arranged alternately.

5. The external protection device for the temperature sensor according to claim 1, characterized in that: The telescopic end of the electric telescopic rod (3) is fixed to the connecting block (66), and the inner top of the inner cover (4) is sleeved on the outer bottom of the sensor body (1).

Images