Sensor metal port sealing structure

Abstract

The utility model discloses a sensor metal port sealing structure, which comprises a first sealing shell, a sensor body is arranged in the first sealing shell, a port is arranged on the outer surface of the sensor body, a detection head is arranged in the port, a sealing groove is arranged on the upper surface of the first sealing shell, and the detection head is arranged in the sealing groove. A fixing block is fixedly connected to the side surface of the first sealing shell, a two-way shaft motor is fixedly connected to the interior of the fixing block, threaded rods are fixedly connected to the output ends of the two sides of the two-way shaft motor, sliding blocks are in threaded connection to the outer surfaces of the threaded rods, and sealing blocks are fixedly connected to the upper surfaces of the sliding blocks; a sliding groove is formed in the upper surface of the fixing block. According to the utility model, the air bag is arranged on one side of the sealing blocks, when the two sealing blocks move towards the middle at the same time, the air bag is attached to the detection head, and the air bag can be inflated to be expanded, so that the air bag is completely attached to and sealed with the detection head and the port, and the sealing effect on the port is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a metal port sealing structure of a sensor. Background Art

[0002] A sensor is a detection device that can sense the information being measured and can transform the sensed information into electrical signals or other required forms of information output according to certain rules. It is the primary link to achieve automatic detection and automatic control. Sensors have the characteristics of miniaturization, digitization, intelligence, multi-function, systematization, and networking, which give objects senses such as touch, taste, and smell, making them more "active". The existence and development of sensors have greatly expanded human information acquisition and processing capabilities, allowing us to more conveniently measure, transmit, process and control various physical quantities. Sensors are mainly composed of three parts: sensitive elements, conversion elements, and basic conversion circuits. The metal port sealing structure of the sensor refers to a structural design used to ensure effective isolation between the metal port of the sensor and the external environment. The main purpose of this sealing structure is to prevent external pollutants, gases, liquids, or mechanical stresses from interfering with and damaging the sensitive elements inside the sensor, thereby ensuring the measurement accuracy, stability, and reliability of the sensor.

[0003] A sensor sealing device is disclosed in the Chinese utility model patent application disclosure CN217818809U. The sensor sealing device of this scheme has a simple structure and is easy to operate. It can seal the sensor wires through a high-temperature and high-pressure cavity. At the same time, the sensor is easy to disassemble and assemble, which is convenient for sensor maintenance and replacement. However, the existing sealing structure is relatively simple and has a low sealing effect on the sensor port. Utility Model Content

[0004] The purpose of the utility model is to provide a sensor metal port sealing structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a sensor metal port sealing structure, comprising:

[0006] a first sealed housing, wherein a sensor body is disposed inside the first sealed housing, a port is disposed on an outer surface of the sensor body, and a detection head is disposed inside the port;

[0007] A sealing groove is provided on the upper surface of the first sealing shell, a fixing block is fixedly connected to the side surface of the first sealing shell, a bidirectional shaft motor is fixedly connected inside the fixing block, threaded rods are fixedly connected to output ends on both sides of the bidirectional shaft motor, a sliding block is threadedly connected to the outer surface of the threaded rod, and a sealing block is fixedly connected to the upper surface of the sliding block;

[0008] A sliding groove is provided on the upper surface of the fixed block, and the outer surface of the sealing block is slidably connected to the sliding groove. An airbag is provided on the outer surface of the sealing block. An air pump is fixedly connected to the outer surface of the fixed block. A connecting pipe is fixedly connected to the output end of the air pump, and one end of the connecting pipe away from the air pump is fixedly connected to the airbag. A second sealing shell is movably connected to the upper surface of the sensor body.

[0009] Preferably, first connecting blocks are fixedly connected to both sides of the first sealed housing.

[0010] Preferably, the outer surface of the first connecting block is provided with a threaded groove to facilitate connection with a bolt.

[0011] Preferably, second connecting blocks are fixedly connected to both sides of the second sealed shell.

[0012] Preferably, the internal threads of the second connection block are connected with bolts, so that the first connection block can be connected or disassembled with the second connection block, thereby facilitating the separation and disassembly of the first sealed housing and the second sealed housing, thereby increasing practicality.

[0013] Preferably, the outer surface of the bolt is threadedly connected to the thread groove, and the outer surface of the bolt is threadedly connected to a nut.

[0014] Preferably, the upper surface of the nut contacts the thread groove, which is convenient for limiting the bolt, so that the first connecting block is connected to the second connecting block, and the bidirectional axis motor and the air pump are both connected to an external power supply.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The metal port sealing structure of this sensor is provided with an airbag on one side of the sealing block. When the two sealing blocks move toward the middle at the same time, they will fit with the detection head. At this time, the airbag can be inflated to expand it, so that it can completely fit and seal with the detection head and the port, thereby improving the sealing effect of the port;

[0017] (2) This sensor metal port sealing structure is provided with bolts at the connection between the first sealing shell and the second sealing shell. The first connecting block can be connected with the second connecting block by rotating the bolts, thereby connecting and installing the first sealing shell and the second sealing shell, which is convenient for quick replacement and increases the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic structural diagram of a first sealed housing of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the fixing block of the utility model;

[0021] Figure 4 It is a schematic diagram of the appearance structure of the utility model.

[0022] In the figure: 1. first sealed housing; 2. sensor body; 3. detection head; 4. port; 5. sealing groove; 6. fixing block; 7. bidirectional shaft motor; 8. threaded rod; 9. sliding block; 10. sealing block; 11. sliding groove; 12. airbag; 13. air pump; 14. connecting pipe; 15. second sealed housing; 16. first connecting block; 17. threaded groove; 18. second connecting block; 19. bolt; 20. nut. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides an embodiment: a sensor metal port sealing structure, including a first sealed shell 1, a sensor body 2 is arranged inside the first sealed shell 1, a port 4 is arranged on the outer surface of the sensor body 2, and a detection head 3 is arranged inside the port 4.

[0025] A sealing groove 5 is provided on the upper surface of the first sealing shell 1. There are two groups of sealing grooves 5, which are located on the upper and lower sides of the port 4. A rubber sealing ring is provided on the surface of the sealing groove 5 to facilitate sealing the port 4. A fixing block 6 is fixedly connected to the side surface of the first sealing shell 1. A bidirectional shaft motor 7 is fixedly connected to the interior of the fixing block 6. Threaded rods 8 are fixedly connected to the output ends on both sides of the bidirectional shaft motor 7. The threads on the surfaces of the two threaded rods 8 are in opposite directions. The outer surfaces of the threaded rods 8 are threadedly connected to sliding blocks 9. The rotation of the threaded rods 8 can drive the sliding blocks 9 to move in opposite directions at the same time. A sealing block 10 is fixedly connected to the upper surface of the sliding block 9, which can fit with ports 4 of different sizes.

[0026] The upper surface of the fixing block 6 is provided with a sliding groove 11 , the outer surface of the sealing block 10 is slidably connected to the sliding groove 11 , and the outer surface of the sealing block 10 is provided with an air bag 12 .

[0027] An air pump 13 is fixedly connected to the outer surface of the fixed block 6, and a connecting tube 14 is fixedly connected to the output end of the air pump 13. The connecting tube 14 is elastic and can move with the airbag 12. The end of the connecting tube 14 away from the air pump 13 is fixedly connected to the airbag 12, and the airbag 12 can be inflated so that the airbag 12 can fit tightly against the port 4, thereby performing secondary sealing to prevent external rain or dust from entering.

[0028] The upper surface of the sensor body 2 is movably connected to a second sealing shell 15, and a sealing groove 5 is also provided on the lower surface of the second sealing shell 15. The first sealing shell 1 is fixedly connected to first connecting blocks 16 on both sides, and a threaded groove 17 is provided on the outer surface of the first connecting block 16 for easy connection with the bolt 19.

[0029] The second sealing shell 15 is fixedly connected with a second connecting block 18 on both sides, and the internal thread of the second connecting block 18 is connected with a bolt 19, so that the first connecting block 16 can be connected or disassembled with the second connecting block 18, so as to facilitate the separation and disassembly of the first sealing shell 1 and the second sealing shell 15, and increase practicality. The outer surface of the bolt 19 is threadedly connected with the thread groove 17, and the outer surface of the bolt 19 is threadedly connected with a nut 20, and the upper surface of the nut 20 contacts the thread groove 17, so as to facilitate the limiting of the bolt 19, so that the first connecting block 16 is connected with the second connecting block 18, and the bidirectional axis motor 7 and the air pump 13 are both connected to the external power supply.

[0030] When the embodiment of the present application is in use: the sensor body 2 is placed as a whole inside the first sealing shell 1, the second sealing shell 15 is closed, the bolt 19 is turned to connect it with the threaded groove 17, the first connecting block 16 and the second connecting block 18 are combined together, and the port 4 is sealed for the first time, and then the bidirectional axis motor 7 is started to drive the two threaded rods 8 to rotate together, so that the sliding block 9 drives the sealing block 10 and the airbag 12 to move in the middle, fit with the detection head 3 and the port 4, and the air pump 13 is started to pump the airbag 12 through the connecting tube 14 to make it expand and bulge, and completely fit with the detection head 3, thereby achieving secondary sealing.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A sensor metal port sealing structure, characterized in that: include: A first sealed housing (1), wherein a sensor body (2) is arranged inside the first sealed housing (1), a port (4) is arranged on the outer surface of the sensor body (2), and a detection head (3) is arranged inside the port (4); A sealing groove (5) is provided on the upper surface of the first sealing shell (1); a fixing block (6) is fixedly connected to the side surface of the first sealing shell (1); a bidirectional shaft motor (7) is fixedly connected inside the fixing block (6); output ends on both sides of the bidirectional shaft motor (7) are fixedly connected to threaded rods (8); a sliding block (9) is threadedly connected to the outer surface of the threaded rod (8); and a sealing block (10) is fixedly connected to the upper surface of the sliding block (9); The upper surface of the fixed block (6) is provided with a sliding groove (11), the outer surface of the sealing block (10) is slidably connected to the sliding groove (11), the outer surface of the sealing block (10) is provided with an air bag (12), the outer surface of the fixed block (6) is fixedly connected to an air pump (13), the output end of the air pump (13) is fixedly connected to a connecting pipe (14), the end of the connecting pipe (14) away from the air pump (13) is fixedly connected to the air bag (12), and the upper surface of the sensor body (2) is movably connected to a second sealing shell (15).

2. A sensor metal port sealing structure according to claim 1, characterized in that: First connecting blocks (16) are fixedly connected to both sides of the first sealed housing (1).

3. A sensor metal port sealing structure according to claim 2, characterized in that: The outer surface of the first connecting block (16) is provided with a thread groove (17).

4. A sensor metal port sealing structure according to claim 1, characterized in that: Second connecting blocks (18) are fixedly connected to both sides of the second sealed housing (15).

5. A sensor metal port sealing structure according to claim 4, characterized in that: The second connection block (18) is internally threadedly connected with a bolt (19).

6. A sensor metal port sealing structure according to claim 5, characterized in that: The outer surface of the bolt (19) is threadedly connected to the thread groove (17), and the outer surface of the bolt (19) is threadedly connected to a nut (20).

7. A sensor metal port sealing structure according to claim 6, characterized in that: The upper surface of the nut (20) is in contact with the thread groove (17), and the bidirectional shaft motor (7) and the air pump (13) are both connected to an external power source.

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