Sensor for detecting air compressor

Abstract

The utility model discloses a sensor used for air compressor detection, comprising a dismounting screw head, the center of the lower end of the dismounting screw head is connected with a temperature sensing head, the center of the upper end of the dismounting screw head is connected with a connecting wire harness, the outer side of the lower end of the dismounting screw head is connected with an installation threaded sleeve, and the installation threaded sleeve is sleeved on the upper side of the outer part of the connecting wire harness. The temperature sensing head is arranged in the mounting and dismounting screw head and can be replaced according to the type of a connecting hole of the air compressor, a limiting clamping groove is formed in the outer side of the lower end of the mounting and dismounting screw head, a plurality of positioning strips are connected to the upper side of the outer wall of the temperature sensing head, and the upper ends of the positioning strips are located in the limiting clamping groove and connected to the inner wall of the upper end of the limiting clamping groove. According to the utility model, rapid replacement can be carried out according to the inner diameter sizes and thread specifications of different air compressor connecting holes, the universality and adaptability of the sensor are improved, the problem that a traditional sensor cannot be installed due to mismatching of the thread specifications is avoided, and the use cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air compressor sensors, and in particular to a sensor for air compressor detection. Background Technology

[0002] Traditional air compressor temperature sensors commonly suffer from problems such as poor installation compatibility and insufficient sealing performance.

[0003] Conventional sensors typically use a fixed threaded connection structure, which cannot be adapted to the connection hole specifications of different air compressor models, resulting in installation difficulties or the need for additional adapters, increasing the cost and complexity of use.

[0004] In addition, traditional sensors often rely on static sealing rings or gaskets for sealing. After long-term use, these seals are prone to failure due to aging or air pressure fluctuations, resulting in gas leakage and affecting detection accuracy and equipment safety.

[0005] To address the aforementioned issues, this patent proposes a novel sensor solution with high adaptability and dynamic sealing characteristics. Utility Model Content

[0006] The main purpose of this invention is to propose a sensor for air compressor detection, which aims to solve the problems of poor installation adaptability and insufficient sealing performance of traditional air compressor detection sensors.

[0007] To address the aforementioned issues, this utility model proposes a sensor for air compressor testing, comprising a disassembly and assembly screw head. A temperature sensing head is connected to the center of the lower end of the disassembly and assembly screw head, and a connecting wire harness is connected to the center of the upper end of the disassembly and assembly screw head. An installation threaded sleeve is connected to the outer side of the lower end of the disassembly and assembly screw head, and the installation threaded sleeve is fitted onto the upper side of the connecting wire harness and can be replaced according to the connection hole model of the air compressor.

[0008] Preferably, a limiting groove is provided on the outer side of the lower end of the disassembly and assembly screw head, and multiple positioning strips are connected to the upper side of the outer wall of the temperature sensor head, with the upper end of the positioning strip located inside the limiting groove and connected to the upper inner wall of the limiting groove.

[0009] Preferably, the upper outer side of the limiting slot is connected to multiple bolt limiting holes, and the multiple bolt limiting holes are opened on the upper outer side of the disassembly and assembly screw head. The upper outer side of the mounting threaded sleeve is connected to a limiting head, and the limiting head is engaged inside the limiting slot. The cylindrical inner wall of the mounting threaded sleeve is provided with multiple positioning grooves.

[0010] Preferably, the multiple positioning strips are respectively snapped into the multiple positioning grooves, and the upper outer side of the limiting clip head is provided with multiple threaded connection holes. The threaded connection holes are located directly below the bolt limiting holes. Connecting bolts are inserted into the bolt limiting holes and the threaded connection holes, and the connecting bolts are threaded into the threaded connection holes.

[0011] Preferably, the upper and lower outer sides of the limiting card head are provided with sealing grooves, and multiple connecting grooves are connected between the two sealing grooves. Each of the multiple connecting grooves is connected to a pressure boosting pipe at one end near the central axis of the mounting threaded sleeve. The pressure boosting pipe is located inside the mounting threaded sleeve.

[0012] Preferably, the lower end opening of the booster tube is located on the outer wall of the lower end of the mounting threaded sleeve, and two limiting rings are connected inside the lower end of the booster tube, and both limiting rings are in communication with the inside of the booster tube. An expansion sealing gasket is provided inside both sealing grooves.

[0013] Preferably, multiple connecting pads are connected between the two expansion sealing gaskets, and each of the multiple connecting pads is connected to a liquid guide tube at one end near the central axis of the mounting threaded sleeve, and the other end of the multiple liquid guide tubes is respectively attached to the inside of the upper end of multiple pressurizing tubes.

[0014] Preferably, a booster piston and a flat spring are provided between the two limiting rings, and the booster piston is located at the lower end of the flat spring and is elastically connected between the two limiting rings through the flat spring. The booster piston is slidably connected inside the lower end of the booster tube and a rubber sealing ring is provided between the booster piston and the booster tube.

[0015] Beneficial effects:

[0016] 1. This utility model, through its detachable installation threaded sleeve structure, allows for quick replacement according to the inner diameter and thread specifications of different air compressor connection holes, improving the versatility and adaptability of the sensor, avoiding the problem of traditional sensors being unable to be installed due to mismatched thread specifications, and reducing usage costs.

[0017] 2. The present invention has a limiting slot at the lower end of the disassembly and assembly screw head and a positioning strip at the upper end of the temperature sensor head. The installation threaded sleeve achieves precise positioning through the cooperation of the limiting slot and the positioning groove, and is reinforced by connecting bolts to ensure stable connection between the installation threaded sleeve and the temperature sensor head and the disassembly and assembly screw head, prevent loosening, and improve the overall structural reliability of the sensor.

[0018] 3. The limit card head of this utility model is equipped with expansion sealing gaskets at the upper and lower ends, and is connected to the booster pipe through the connecting gasket and the liquid guide pipe. The booster piston is driven by the change of air pressure inside the air compressor, which automatically adjusts the expansion degree of the sealing gasket to achieve dynamic sealing compensation, effectively prevent gas leakage, and avoid the sealing failure problem caused by the aging of the sealing gasket.

[0019] 4. The booster pipe of this utility model is connected to the inside of the air compressor. When the air pressure increases, the hydraulic oil is forced into the sealing gasket to expand it and enhance the sealing performance. When the air pressure decreases, the flat pressure spring pushes the piston to reset, reducing the pressure on the sealing gasket and making the sealing strength automatically adjust with the working conditions to ensure long-term stable sealing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the air compressor sensor of this utility model;

[0022] Figure 2 This is a schematic diagram of the explosion of the air compressor sensor of this utility model;

[0023] Figure 3 This is a schematic diagram of the disassembly and assembly screw head connection structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the installation threaded sleeve connection structure of this utility model;

[0025] Figure 5 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0026] Figure 6 For the present utility model Figure 2 Enlarged view of point B in the middle;

[0027] Figure 7 This is a schematic diagram of the connection structure of the connecting pad of this utility model.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Disassembly and assembly of screw head; 2. Temperature sensor head; 3. Connecting wire harness; 4. Installing threaded sleeve; 5. Limiting slot; 6. Positioning strip; 7. Bolt limiting hole; 8. Limiting clamp; 9. Positioning groove; 10. Threaded connection hole; 11. Connecting bolt; 12. Sealing groove; 13. Connecting groove; 14. Pressure boosting pipe; 15. Limiting ring; 16. Expansion sealing gasket; 17. Connecting gasket; 18. Liquid guide pipe; 19. Pressure boosting piston; 20. Flat pressure spring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] To achieve the above-mentioned utility model objectives, such as Figures 1-7 As shown, this utility model provides a sensor for air compressor detection, including a disassembly / reassembly head 1. A temperature sensing head 2 is connected to the center of the lower end of the disassembly / reassembly head 1, and a connecting wire harness 3 is connected to the center of the upper end of the disassembly / reassembly head 1. A mounting threaded sleeve 4 is connected to the outer side of the lower end of the disassembly / reassembly head 1, and the mounting threaded sleeve 4 is fitted onto the upper side of the connecting wire harness 3. The sleeve 4 can be replaced according to the connection hole type of the air compressor. The temperature sensing head 2 is inserted into the connection hole of the air compressor, and the disassembly / reassembly head 1 is rotated. The sensor is connected to the connection hole of the air compressor through the mounting threaded sleeve 4, thereby fixing the temperature sensing head 2 inside the air compressor and detecting the temperature during the air compressor's operation. The detection data is transmitted through the connecting harness 3. The temperature sensor head 2 is equipped with a thermistor, which changes its resistance according to the temperature change inside the air compressor. The temperature inside the air compressor can be calculated by the change in the resistance of the thermistor (the temperature sensor head 2 in this technical document can be implemented using existing thermistor temperature sensors. This technical document only improves its installation structure, so it will not be described in detail here). The mounting threaded sleeve 4 can be replaced according to the inner diameter of the connecting hole and the specification of the thread on the inner wall of the connecting hole, ensuring that the mounting threaded sleeve 4 can be adapted to different types of connecting holes and improving the compatibility of the sensor.

[0032] Preferably, a limiting groove 5 is formed on the outer side of the lower end of the disassembly and assembly screw head 1. Multiple positioning strips 6 are connected to the upper side of the outer wall of the temperature sensor head 2, with the upper ends of the positioning strips 6 located inside the limiting groove 5 and connected to the upper inner wall of the limiting groove 5. Multiple bolt limiting holes 7 are connected to the outer side of the upper end of the limiting groove 5, and these bolt limiting holes 7 are formed on the outer side of the upper end of the disassembly and assembly screw head 1. A limiting head 8 is connected to the outer side of the upper end of the installation threaded sleeve 4, and the limiting head 8 is engaged inside the limiting groove 5. Multiple positioning grooves 9 are formed on the inner cylindrical wall of the installation threaded sleeve 4, and the multiple positioning strips 6 are engaged inside the multiple positioning grooves 9 respectively. Multiple threaded connection holes 10 are formed on the outer side of the upper end of the limiting head 8, and the threaded connection holes 10 are located directly below the bolt limiting holes 7. Connecting rods are inserted into the bolt limiting holes 7 and the threaded connection holes 10. Connecting bolt 11 is threaded into the threaded connection hole 10. During the installation of the threaded sleeve 4, the threaded sleeve 4 is fitted onto the outside of the temperature sensor head 2 from the lower end and slides upward, allowing the limiting head 8 to engage with the limiting groove 5. The limiting groove 5 and the limiting head 8 are positioned by multiple positioning strips 6 and multiple positioning slots 9 to ensure that the limiting head 8 can be smoothly engaged with the limiting groove 5. At the same time, the temperature sensor head 2 and the threaded sleeve 4 are limited. Then, multiple connecting bolts 11 are inserted from the upper ends of multiple bolt limiting holes 7 and threaded into the multiple threaded connection holes 10, thereby installing the threaded sleeve 4 and ensuring a stable connection between the threaded sleeve 4, the mounting screw head 1, and the temperature sensor head 2.

[0033] Preferably, the upper and lower outer sides of the limiting head 8 are provided with sealing grooves 12, and multiple connecting grooves 13 are connected between the two sealing grooves 12. Each of the multiple connecting grooves 13 is connected to a pressure boosting pipe 14 near the central axis of the mounting threaded sleeve 4. The pressure boosting pipe 14 is located inside the mounting threaded sleeve 4, and the lower opening of the pressure boosting pipe 14 is located on the lower outer wall of the mounting threaded sleeve 4. Two limiting rings 15 are connected to the lower end of the pressure boosting pipe 14, and both limiting rings 15 are connected to the inside of the pressure boosting pipe 14. An expansion sealing gasket 16 is provided inside each of the two sealing grooves 12. During the installation of the sensor, since the upper and lower outer sides of the limiting head 8 are provided with expansion sealing gaskets 16 through the sealing grooves 12, the limiting head 8 can seal with the limiting groove 5 through the upper expansion sealing gasket 16 and seal with the connection hole of the air compressor through the lower expansion sealing gasket 16, preventing the air compressor from leaking air from the connection hole and improving the sealing performance between the sensor and the air compressor.

[0034] Preferably, multiple connecting gaskets 17 are connected between the two expansion sealing gaskets 16. Each connecting gasket 17 has a liquid guide tube 18 connected to one end near the central axis of the mounting threaded sleeve 4. The other ends of the multiple liquid guide tubes 18 are respectively adhered to the inner upper end of multiple pressure boosting tubes 14. A pressure boosting piston 19 and a flat pressure spring 20 are provided between the two limiting rings 15. The pressure boosting piston 19 is located below the flat pressure spring 20 and is elastically connected between the two limiting rings 15 through the flat pressure spring 20. The pressure boosting piston 19 is slidably connected to the inner lower end of the pressure boosting tube 14, and a rubber seal is provided between it and the pressure boosting tube 14. The sealing ring consists of two expansion gaskets 16 connected by multiple connecting gaskets 17 and multiple liquid guide tubes 18 connected to multiple booster tubes 14. Hydraulic oil is provided inside the booster tubes 14 located at the upper end of the booster piston 19, as well as inside the expansion gaskets 16, connecting gaskets 17, and liquid guide tubes 18. Since the lower opening of the booster tube 14 is located below the temperature sensor head 2, and the lower end of the temperature sensor head 2 is inserted into the air compressor, the lower opening of the booster tube 14 is connected to the interior of the air compressor. During the process of the sensor detecting the working status of the air compressor, the working air compressor... When the internal air pressure increases to a level greater than the elastic force of the flat pressure spring 20, the internal air pressure pushes the booster piston 19 upward through the lower opening of the booster pipe 14 and compresses the flat pressure spring 20, achieving balance with the elastic force of the flat pressure spring 20 and the hydraulic oil pressure. At this time, the booster piston 19 slides upward, squeezing the hydraulic oil inside the booster pipe 14 into multiple connecting gaskets 17 and multiple guide pipes 18, and then squeezing the hydraulic oil into the two expansion sealing gaskets 16 through the multiple connecting gaskets 17 and multiple guide pipes 18, allowing the two expansion sealing gaskets to... When the gasket 16 expands, it enhances the sealing strength between the limit clamp 8, the limit clamp groove 5, and the connecting hole. Conversely, when the internal air pressure of the air compressor decreases, the booster piston 19 slides downward under the pressure of the flat pressure spring 20 and the hydraulic oil, drawing out the hydraulic oil inside the two expansion gaskets 16 and reducing the sealing strength of the two expansion gaskets 16. This allows the sealing performance of the two expansion gaskets 16 to be automatically adjusted according to the internal air pressure of the air compressor, ensuring the sealing performance between the sensor and the air compressor, while preventing air leakage due to the aging and loss of elasticity of the two expansion gaskets 16.

[0035] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sensor for detecting air compressors, characterized in that, It includes a disassembly and assembly screw head (1), a temperature sensor head (2) is connected to the center of the lower end of the disassembly and assembly screw head (1), a connecting wire harness (3) is connected to the center of the upper end of the disassembly and assembly screw head (1), and an installation threaded sleeve (4) is connected to the outer side of the lower end of the disassembly and assembly screw head (1). The installation threaded sleeve (4) is fitted onto the upper side of the connecting wire harness (3) and can be replaced according to the connection hole model of the air compressor.

2. The sensor for air compressor detection as described in claim 1, characterized in that, The lower outer side of the disassembly and assembly screw head (1) is provided with a limiting groove (5), and the upper side of the outer wall of the temperature sensor head (2) is connected with multiple positioning strips (6), and the upper end of the positioning strips (6) is located inside the limiting groove (5) and connected to the upper inner wall of the limiting groove (5).

3. The sensor for air compressor detection as described in claim 2, characterized in that, The upper outer side of the limiting slot (5) is connected to multiple bolt limiting holes (7), and the multiple bolt limiting holes (7) are opened on the upper outer side of the disassembly screw head (1). The upper outer side of the mounting threaded sleeve (4) is connected to a limiting head (8), and the limiting head (8) is engaged inside the limiting slot (5). Multiple positioning grooves (9) are opened on the cylindrical inner wall of the mounting threaded sleeve (4).

4. The sensor for air compressor detection as described in claim 3, characterized in that, Multiple positioning strips (6) are respectively snapped into multiple positioning grooves (9). Multiple threaded connection holes (10) are provided on the outer side of the upper end of the limiting head (8). The threaded connection holes (10) are located directly below the bolt limiting hole (7). Connecting bolts (11) are inserted into the bolt limiting hole (7) and the threaded connection hole (10), and the connecting bolts (11) are threaded into the threaded connection hole (10).

5. A sensor for air compressor detection as described in claim 4, characterized in that, The upper and lower ends of the limiting clip (8) are provided with sealing grooves (12), and multiple connecting grooves (13) are connected between the two sealing grooves (12). Each of the multiple connecting grooves (13) is connected to a pressure boosting pipe (14) at one end near the central axis of the mounting threaded sleeve (4). The pressure boosting pipe (14) is located inside the mounting threaded sleeve (4).

6. A sensor for air compressor detection as described in claim 5, characterized in that, The lower end opening of the booster pipe (14) is located on the lower outer wall of the mounting threaded sleeve (4). The lower end of the booster pipe (14) is connected to two limiting rings (15), and both limiting rings (15) are in communication with the inside of the booster pipe (14). Both sealing grooves (12) are provided with expansion sealing gaskets (16).

7. A sensor for air compressor detection as described in claim 6, characterized in that, Multiple connecting pads (17) are connected between the two expansion sealing pads (16). Each of the multiple connecting pads (17) is connected to a liquid guide tube (18) at one end near the central axis of the mounting threaded sleeve (4), and the other end of the multiple liquid guide tubes (18) is respectively attached to the upper end of the multiple pressure boosting tubes (14).

8. A sensor for air compressor detection as described in claim 7, characterized in that, A booster piston (19) and a flat pressure spring (20) are provided between the two limiting rings (15). The booster piston (19) is located at the lower end of the flat pressure spring (20) and is elastically connected between the two limiting rings (15) through the flat pressure spring (20). The booster piston (19) is slidably connected inside the lower end of the booster tube (14) and a rubber sealing ring is provided between it and the booster tube (14).

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