Metal film box sensor wiring structure

Abstract

The utility model discloses a metal film box sensor wiring structure, comprising a rear cover, the rear cover is fixedly connected on a sensor housing, the rear cover is in threaded connection with an installation cylinder, an anti-falling assembly is arranged in the installation cylinder, the rear cover is provided with a through hole, the inner wall of the through hole is fixedly connected with a port, and the inner wall of the through hole is provided with a through hole. The installation cylinder is detachably connected with a connector, the connector is provided with a positioning assembly, one end of the connector is fixedly connected with a wire, the fixing nut is fixed through the anti-falling assembly, and therefore the situation that the normal work of the sensor is affected due to poor contact between the wire and the sensor caused by loosening of the connector is avoided.

Description

Technical Field

[0001] This utility model relates to the field of metal diaphragm sensor technology, and more specifically, to a wiring structure for a metal diaphragm sensor. Background Technology

[0002] A metal diaphragm sensor is a sensor that uses a thin-film deformation-sensitive element to measure various physical quantities. It mainly includes a diaphragm, a connecting tube, and a measuring circuit. Its core component is the diaphragm, typically made of stainless steel, copper, or alloys, capable of withstanding high pressure and temperature. When a measuring medium is applied to the diaphragm, the thin film deforms, thereby changing the resistance value of the bridge circuit. The measuring circuit then obtains the physical quantity of the measured medium. Publication number CN218677837U relates to the field of sensor equipment technology, specifically a wiring structure and gas pressure sensor, including: a housing, a connecting block, and a plug. The connecting block is connected to a sliding rod, a return spring, and a fixing rod. The plug has a fixing groove; the advantages are as follows: during installation, first insert the plug into the inside of the conduit through the connector, align the positioning groove with the connecting block, and then press the plug so that the side wall of the positioning groove and the outer wall of the plug squeeze the fixing rod, causing the fixing rod to slide through the slide bar and squeeze the return spring. When the plug is pressed to the bottom, the chamfered end of the fixing rod is flush with the fixing groove, and the fixing rod is inserted into the fixing groove by the action of the return spring. This facilitates quick and easy fixing. In addition, the insulating rubber pad not only ensures a seal between the plug and the conduit, but also increases the stability of the fixing rod and the fixing groove.

[0003] However, existing technologies have some problems: when wiring existing metal diaphragm sensors, there is usually a fixing nut to fix the connector to the sensor interface. However, metal diaphragm sensors are usually fixed on a device. When the device is working, it will vibrate, causing the sensor to vibrate, which will cause the fixing nut to loosen, making the connector loose, resulting in poor contact and affecting the normal operation of the sensor. Therefore, we propose a wiring structure for metal diaphragm sensors. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for the wiring structure of a metal diaphragm sensor.

[0005] According to a first aspect of the present invention, a wiring structure for a metal diaphragm sensor is provided, including a rear cover, which is fixedly connected to a sensor housing. A mounting cylinder is threaded onto the rear cover, and an anti-detachment component is provided inside the mounting cylinder. A through hole is provided on the rear cover, and a port is fixedly connected to the inner wall of the through hole. A connector is detachably connected to the mounting cylinder, and a positioning component is provided on the connector. A wire is fixedly connected to one end of the connector.

[0006] Optionally, the anti-detachment component includes a top plate, a slide rail is provided inside the mounting cylinder, the top plate is slidably connected to the slide rail, an avoidance hole is provided on the top plate, and the port is provided through the avoidance hole.

[0007] Optionally, the anti-detachment component further includes a spring disposed between the top plate and the rear cover, with the port passing through the spring.

[0008] Optionally, the outer wall of the mounting cylinder is provided with threads, and a fixing nut is rotatably connected to the connector, the fixing nut being threadedly connected to the thread of the mounting cylinder.

[0009] Optionally, a locking ring is fixedly connected to one end of the connector, a limiting ring is fixedly connected to the other end of the connector, and the fixing nut is movably connected between the limiting ring and the locking ring.

[0010] Optionally, the positioning component includes a positioning ring, which is fixedly connected to the inner wall of the mounting cylinder, and the top plate is disposed between the positioning ring and the rear cover.

[0011] Optionally, the inner wall of the positioning ring is provided with a positioning groove, and a positioning block is fixedly connected to the connector, the positioning block being slidably connected in the positioning groove.

[0012] Optionally, a plug is fixedly connected inside the connector, and a wiring groove is provided on the port, with the plug disposed inside the wiring groove.

[0013] According to one embodiment of this disclosure, an anti-loosening component is used to prevent the connector from loosening. When the connector moves into the mounting cylinder, it pushes the top plate of the mounting cylinder to compress the spring along the slide. After the connector is fixed, the spring is in a compressed state and will give the top plate a thrust. The connector and the locking ring fixed thereon will be pushed by the top plate, which will cause the fixing nut to be pushed. This will cause the spring to be compressed and generate elastic potential energy, continuously applying axial force to the fixing nut. When the preload of the fixing nut decreases due to vibration or stress relaxation, the spring will compensate for this loss through elastic deformation, maintain the friction between the threaded pairs, and prevent the fixing nut from loosening. This will prevent the connector from loosening, which would lead to poor contact between the wire and the sensor and affect the normal operation of the sensor.

[0014] This utility model is equipped with a positioning component. Before inserting the connector into the mounting cylinder, the positioning block on the connector is aligned with the positioning groove on the positioning ring, so that the plug on the connector is aligned with the wiring groove on the port. This eliminates the need to repeatedly insert and remove the connector to align the plug with the wiring groove, avoiding damage caused by the plug hitting other parts. At the same time, when the positioning block moves to the bottom of the positioning groove, the plug is just fully inserted into the wiring groove, thus avoiding damage caused by excessive force hitting the wiring groove.

[0015] When installing the anti-detachment component, the spring is first placed on the port, then the top plate is placed in the slide of the mounting cylinder, and finally the mounting cylinder is tightened onto the back cover to complete the installation. When the spring needs to be replaced after long-term use, the mounting cylinder can be rotated to remove the mounting cylinder and the spring can be replaced. The installation and disassembly are simple.

[0016] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of a metal diaphragm sensor wiring structure in one embodiment;

[0019] Figure 2 An exploded view of the overall structure of a metal diaphragm sensor wiring structure in one embodiment;

[0020] Figure 3 A cross-sectional view of the mounting cylinder of a metal diaphragm sensor wiring structure in one embodiment;

[0021] Figure 4 This is a cross-sectional view of the connector of a metal diaphragm sensor wiring structure in one embodiment.

[0022] The following are marked in the diagram: 1. Back cover; 2. Mounting cylinder; 3. Anti-detachment component; 31. Top plate; 32. Spring; 4. Port; 5. Connector; 6. Positioning component; 61. Positioning ring; 62. Positioning block; 7. Wire; 8. Fixing nut; 9. Locking ring; 10. Limiting ring; 11. Plug. Detailed Implementation

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0027] like Figure 1-4 As shown, a wiring structure for a metal diaphragm sensor includes a back cover 1, which is fixedly connected to the sensor housing. The back cover 1 is made of stainless steel, and its main function is to connect the wiring structure to the metal diaphragm sensor.

[0028] Furthermore, an installation cylinder 2 is threaded onto the rear cover 1, and an anti-detachment component 3 is provided inside the installation cylinder 2. The anti-detachment component 3 includes a top plate 31, a slide is provided inside the installation cylinder 2, the top plate 31 is slidably connected to the slide, and an avoidance hole is provided on the top plate 31, with the port 4 passing through the avoidance hole.

[0029] Furthermore, the anti-detachment component 3 also includes a spring 32, which is disposed between the top plate 31 and the rear cover 1, with the port 4 passing through the spring 32.

[0030] Specifically, when installing the anti-detachment component 3, first place the spring 32 on the port 4, then place the top plate 31 in the slide of the mounting cylinder 2, and then tighten the mounting cylinder 2 onto the back cover 1 to complete the installation. When the spring 32 needs to be replaced after long-term use, simply rotate the mounting cylinder 2 to remove it and replace the spring 32. The installation and disassembly are simple.

[0031] Furthermore, a through hole is provided on the rear cover 1, and a port 4 is fixedly connected to the inner wall of the through hole. The port 4 is electrically connected to the metal diaphragm sensor for transmitting signals.

[0032] Furthermore, a connector 5 is detachably connected to the mounting cylinder 2, and the outer wall of the mounting cylinder 2 is provided with threads. A fixing nut 8 is rotatably connected to the connector 5, and the fixing nut 8 is threadedly connected to the thread of the mounting cylinder 2.

[0033] Furthermore, a locking ring 9 is fixedly connected to one end of the connector 5, and a limiting ring 10 is fixedly connected to the other end of the connector 5. The fixing nut 8 is movably connected between the limiting ring 10 and the locking ring 9.

[0034] Specifically, by inserting connector 5 into mounting cylinder 2, the plug 11 on connector 5 is inserted into the wiring slot of port 4, thereby electrically connecting the wire 7 fixed on connector 5 to the metal diaphragm sensor. Then, by rotating fixing nut 8, fixing nut 8 moves along the thread on the outer wall of mounting cylinder 2, thereby pushing locking ring 9 to move, and thus moving connector 5. When plug 11 is fully inserted into the wiring slot, stop rotating fixing nut 8 to complete the wiring.

[0035] Furthermore, when the connector 5 moves into the mounting cylinder 2, it pushes the top plate 31 of the mounting cylinder 2 to compress the spring 32 and slide it along the slide. After the connector 5 is fixed, the spring 32 is in a compressed state, which will give the top plate 31 a thrust. The connector 5 and the locking ring 9 fixed on it will be subjected to the thrust of the top plate 31, which will cause the fixing nut 8 to be subjected to thrust. This will cause the spring 32 to generate elastic potential energy after being compressed, and continuously apply axial force to the fixing nut 8. When the preload of the fixing nut 8 decreases due to vibration or stress relaxation, the spring 32 compensates for this loss through elastic deformation, maintains the friction between the threaded pairs, and prevents the fixing nut 8 from loosening, thereby avoiding the connector 5 from loosening, which would lead to poor contact between the wire 7 and the sensor and affect the normal operation of the sensor.

[0036] Furthermore, a positioning component 6 is provided on the connector 5. The positioning component 6 includes a positioning ring 61, which is fixedly connected to the inner wall of the mounting cylinder 2. The top plate 31 is located between the positioning ring 61 and the rear cover 1. A positioning groove is provided on the inner wall of the positioning ring 61. A positioning block 62 is fixedly connected to the connector 5 and is slidably connected in the positioning groove.

[0037] Specifically, before inserting the connector 5 into the mounting cylinder 2, the positioning block 62 on the connector 5 is aligned with the positioning groove on the positioning ring 61, so that the plug 11 on the connector 5 aligns with the wiring groove on the port 4. This eliminates the need to repeatedly insert and remove the connector 5 to align the plug 11 with the wiring groove, preventing the plug 11 from hitting other parts and causing damage. At the same time, when the positioning block 62 moves to the bottom of the positioning groove, the plug 11 is just fully inserted into the wiring groove, thus avoiding excessive force that could cause the plug 11 to hit the wiring groove and cause damage.

[0038] Furthermore, a wire 7 is fixedly connected to one end of the connector 5, and a plug 11 is fixedly connected inside the connector 5. A wiring groove is provided on the port 4, and the plug 11 is placed in the wiring groove. The plug 11 is electrically connected to the wire 7, and the plug 11 is electrically connected to the port 4 through the wiring groove, thereby making the plug 11 electrically connected to the sensor, and in turn making the wire 7 electrically connected to the sensor, so as to transmit the electrical signal in the sensor.

[0039] The aforementioned metal diaphragm sensor wiring structure prevents the connector 5 from loosening through the anti-detachment component 3. When the connector 5 moves into the mounting cylinder 2, it pushes the top plate 31 of the mounting cylinder 2 to compress the spring 32 along the slide. After the connector 5 is fixed, the spring 32 is in a compressed state, which will give the top plate 31 a thrust. The connector 5 and the locking ring 9 fixed on it will be pushed by the top plate 31, thereby causing the fixing nut 8 to be pushed. This causes the spring 32 to be compressed and generate elastic potential energy, continuously applying axial force to the fixing nut 8. When the preload of the fixing nut 8 decreases due to vibration or stress relaxation, the spring 32 compensates for this loss through elastic deformation, maintains the friction between the threaded pairs, and prevents the fixing nut 8 from loosening, thereby preventing the connector 5 from loosening, which would lead to poor contact between the wire 7 and the sensor and affect the normal operation of the sensor.

[0040] This utility model is equipped with a positioning component 6. Before inserting the connector 5 into the mounting cylinder 2, the positioning block 62 on the connector 5 is aligned with the positioning groove on the positioning ring 61, so that the plug 11 on the connector 5 is aligned with the wiring groove on the port 4. This eliminates the need to repeatedly insert and remove the connector 5 to align the plug 11 with the wiring groove, thus preventing the plug 11 from hitting other parts and causing damage. At the same time, when the positioning block 62 moves to the bottom of the positioning groove, the plug 11 is just fully inserted into the wiring groove, thus avoiding excessive force that could cause the plug 11 to hit the wiring groove and cause damage.

[0041] When installing the anti-detachment component 3, the spring 32 is first placed on the port 4, then the top plate 31 is placed in the slide of the mounting cylinder 2, and then the mounting cylinder 2 is tightened on the back cover 1 to complete the installation. When the spring 32 needs to be replaced after long-term use, the mounting cylinder 2 can be rotated to remove the mounting cylinder 2 and the spring 32 can be replaced. The installation and disassembly are simple.

[0042] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A wiring structure for a metal diaphragm sensor, comprising a rear cover (1), characterized in that: The rear cover (1) is fixedly connected to the sensor housing. A mounting cylinder (2) is threaded onto the rear cover (1). An anti-detachment component (3) is provided inside the mounting cylinder (2). A through hole is provided on the rear cover (1). A port (4) is fixedly connected to the inner wall of the through hole. A connector (5) is detachably connected to the mounting cylinder (2). A positioning component (6) is provided on the connector (5). A wire (7) is fixedly connected to one end of the connector (5).

2. The wiring structure for a metal diaphragm sensor according to claim 1, characterized in that: The anti-detachment component (3) includes a top plate (31), a slide is provided inside the mounting cylinder (2), the top plate (31) is slidably connected in the slide, an avoidance hole is provided on the top plate (31), and the port (4) is provided through the avoidance hole.

3. The wiring structure for a metal diaphragm sensor according to claim 2, characterized in that: The anti-detachment component (3) also includes a spring (32), which is disposed between the top plate (31) and the back cover (1), and the port (4) is disposed through the spring (32).

4. The wiring structure for a metal diaphragm sensor according to claim 1, characterized in that: The outer wall of the mounting cylinder (2) is provided with threads, and a fixing nut (8) is rotatably connected to the connector (5). The fixing nut (8) is threadedly connected to the thread of the mounting cylinder (2).

5. The wiring structure for a metal diaphragm sensor according to claim 4, characterized in that: One end of the connector (5) is fixedly connected to a locking ring (9), and the other end of the connector (5) is fixedly connected to a limiting ring (10). The fixing nut (8) is movably connected between the limiting ring (10) and the locking ring (9).

6. The wiring structure for a metal diaphragm sensor according to claim 2, characterized in that: The positioning component (6) includes a positioning ring (61), which is fixedly connected to the inner wall of the mounting cylinder (2), and the top plate (31) is disposed between the positioning ring (61) and the rear cover (1).

7. The wiring structure for a metal diaphragm sensor according to claim 6, characterized in that: The positioning ring (61) has a positioning groove on its inner wall, and a positioning block (62) is fixedly connected to the connector (5). The positioning block (62) is slidably connected in the positioning groove.

8. The wiring structure for a metal diaphragm sensor according to claim 1, characterized in that: A plug (11) is fixedly connected inside the connector (5), and a wiring groove is provided on the port (4), with the plug (11) placed inside the wiring groove.

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