A measurement sensor

Abstract

This invention provides a measuring sensor, including a housing and a measuring element disposed inside the housing. The housing has a locating pin hole and a mounting hole. A locating element is disposed in the locating pin hole. The mounting hole is formed by two parallel straight edge segments and two semi-circular arc segments connecting the ends of the two straight edge segments. A fastener is disposed in the mounting hole. This invention enables convenient and efficient installation of the measuring sensor by using the locating element in the locating pin hole and the fastener in the mounting hole. It eliminates the need for precise measurement of the exact position of the mounting hole. The position of the fastener in the mounting hole can be adjusted to fit the corresponding mounting hole position, greatly improving the installation efficiency of the measuring sensor and making operation more convenient.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, specifically to a measurement sensor. Background Technology

[0002] In fields such as industrial inspection and environmental monitoring, measurement sensors are key detection components, and their installation accuracy and stability directly affect the accuracy of the detection data.

[0003] Currently, most measurement sensors on the market rely on precise measurement of mounting holes during installation. If the holes are misaligned, the sensor cannot be installed properly, requiring a significant amount of time for hole calibration before installation, resulting in extremely low installation efficiency. Furthermore, sensor housings are mostly injection molded, and due to unavoidable errors in the injection molding process, mounting hole positions often deviate even for housings of the same specifications. Moreover, the dimensions of mounting holes vary considerably between housings of different specifications. Existing sensors lack effective adaptation and adjustment structures, making it difficult to meet the installation requirements of housings of different specifications and those with hole position errors, resulting in poor adaptability. To solve the above problems, it is urgent to design a measurement sensor that can quickly locate, is highly adaptable, is easy to install, and has high stability. Utility Model Content

[0004] In view of this, the present invention provides a measuring sensor that can achieve fast and efficient installation through the structural design of positioning pin holes and mounting holes on the housing. This solves the problems of traditional sensor installation relying on precise measurement of mounting hole positions. If the hole positions are deviated, the sensor cannot be installed normally, resulting in a lot of time being spent on hole position calibration before installation, which leads to extremely low installation efficiency. In addition, the sensor lacks an effective adaptation and adjustment structure, making it difficult to meet the installation requirements of housings of different specifications and housings with hole position errors, resulting in poor adaptability.

[0005] To solve the above-mentioned technical problems, this utility model provides a measuring sensor, including a housing and a measuring element disposed inside the housing. The housing has a positioning pin hole and a mounting hole. A positioning element is disposed in the positioning pin hole. The mounting hole is surrounded by two parallel straight edge segments and two semi-circular arc segments connecting the ends of the two straight edge segments. A fastener is disposed in the mounting hole. This utility model can achieve convenient and efficient installation of the measuring sensor by using the positioning element in the positioning pin hole and the fastener in the mounting hole. It eliminates the need for precise measurement of the exact position of the mounting hole. The position of the fastener in the mounting hole can be adjusted to fit the corresponding mounting hole position, which greatly improves the installation efficiency of the measuring sensor and makes the operation more convenient.

[0006] The fastener includes a threaded sleeve inserted into a mounting hole. One end of the threaded sleeve has an internal hexagonal hole, and the other end of the threaded sleeve is threaded to a screw. This invention allows the screw to be smoothly screwed into the pre-drilled threaded hole by inserting an internal hexagonal wrench into the internal hexagonal hole at the end of the threaded sleeve and turning the threaded sleeve, which in turn rotates the screw. By performing the same operation, all the screws can be screwed into the corresponding threaded holes to achieve a secure installation and fixation of the sensor, making the operation more convenient.

[0007] An adjustment assembly is provided between two fasteners. The adjustment assembly includes an adjustment sleeve disposed on the outside of one fastener and an adjustment plate disposed on the outside of the other fastener. The adjustment plate is inserted into the adjustment sleeve. This utility model can facilitate the installation and fixing of various sizes of injection-molded sensor housings by adjusting the distance of the adjustment plate in the adjustment sleeve, as well as the normal installation and fixing of sensor housings of the same size with certain errors in the mounting holes. It has greater applicability and greatly improves the efficiency of production and installation.

[0008] The adjusting sleeve is also provided with an adjusting groove, and a locking component is provided in the adjusting groove. This utility model can adjust the distance between the two adjusting grooves by adjusting the position of the locking component in the adjusting groove, which is convenient for compensating for the injection molding error of the corresponding two mounting holes of the sensor housing and greatly improves the installation efficiency.

[0009] The locking component includes a locking rod threaded onto the adjusting plate, and a locking nut threaded onto the outer side of the locking rod. This invention can lock the locking rod in its adjusted position by tightening the locking nut, which facilitates locking the distance between the two locking components.

[0010] The positioning component includes a positioning pin inserted into a positioning pin hole. The end of the positioning pin is provided with a positioning pin head. The cross-sectional area of ​​the end of the positioning pin head is smaller than that of the other end. This utility model can facilitate fast and efficient positioning and installation operations by designing the positioning pin head to be small at the end and large at the root, making the operation more convenient.

[0011] There are two mounting holes, and the line connecting the center of the positioning pin hole and the two mounting holes forms a right-angled triangle structure. This utility model can achieve fast and efficient installation and fixing of the shell by cooperating with the positioning pin hole and the mounting holes, which greatly improves the installation efficiency of the shell.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Solves the problem of high positioning accuracy requirements for traditional sensor installation: This utility model can set up a positioning component consisting of a positioning pin and a tapered positioning pin head. The structure of the positioning pin head with a small end and a large root facilitates quick insertion into the positioning hole. The sensor can be initially positioned without the need for precise measurement of the installation hole position. Combined with the right-angled triangular positioning structure formed by the positioning pin hole and the two installation holes, the positioning accuracy is further improved, and the precision requirements for installation positioning are greatly reduced.

[0013] 2. Solves the problem of poor adaptability of traditional sensors: This utility model adopts an oblong hole structure for the mounting hole, and the fastener can be adjusted in position within the mounting hole to adapt to different mounting hole positions; the adjustment plate in the adjustment component can slide within the adjustment sleeve to adjust the position of the locking part in the adjustment groove, which can compensate for the injection molding error of the sensor housing mounting hole, and at the same time adapt to the installation of various housings of different specifications and sizes, significantly improving adaptability.

[0014] 3. Solves the problem of low installation efficiency of traditional sensors: This utility model can use an internal hex wrench to insert into the internal hexagonal hole of the threaded sleeve, and easily turn the threaded sleeve to drive the screw to rotate, which solves the problem of limited operating space of ordinary wrenches and realizes the screw to be quickly screwed into the threaded hole; the combination of quick positioning of the positioning component and convenient adjustment of fasteners and adjustment components greatly shortens the installation time and improves the installation efficiency.

[0015] 4. Solves the problem of insufficient stability of traditional sensors after installation: This utility model can lock the locking rod after adjustment by tightening the locking nut, thereby locking the distance between the two fasteners and preventing the sensor from loosening due to vibration and other factors during long-term use, ensuring structural stability after installation and guaranteeing detection accuracy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the measuring sensor of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a front view of the measuring sensor of this utility model; Figure 4 This is a rear view of the measuring sensor of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 100, housing; 101, locating pin hole; 102, mounting hole; 200, locating element; 201, locating pin rod; 202, locating pin head; 300, fastener; 301, threaded sleeve; 302, screw; 400, adjusting assembly; 410, adjusting sleeve; 411, adjusting groove; 420, adjusting plate; 430, locking element; 431, locking rod; 432, locking nut. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0019] like Figure 1-4 As shown: This embodiment provides a measuring sensor, including a housing 100 and a measuring element disposed inside the housing 100. The housing 100 is made of ABS engineering plastic, and the measuring element is a PT100 platinum resistance temperature sensor, manufactured by Xi'an Yunyi Automation Instrument Co., Ltd., model WZP-230. The housing 100 has a positioning pin hole 101 and a mounting hole 102. A positioning element 200 is disposed in the positioning pin hole 101. The mounting hole 102 is formed by two parallel straight edge segments and two semi-circular arc segments connecting the ends of the two straight edge segments. A fastener 300 is disposed in the mounting hole 102. This utility model can achieve convenient and efficient installation of the measuring sensor by using the positioning element 200 in the positioning pin hole 101 and the fastener 300 in the mounting hole 102. It does not require precise measurement of the exact position of the mounting hole 102. The position of the fastener 300 in the mounting hole 102 can be adjusted to fit the corresponding mounting hole 102 position, which greatly improves the installation efficiency of the measuring sensor and makes the operation more convenient.

[0020] According to one embodiment of the present invention, such as Figure 1-4 As shown, the fastener 300 includes a threaded sleeve 301 inserted into the mounting hole 102. One end of the threaded sleeve 301 has an internal hexagonal hole, and the other end of the threaded sleeve 301 is threadedly connected to a screw 302. The threaded sleeve 301 is made of 304 stainless steel, and the screw 302 is made of 40Cr alloy structural steel. This invention allows the screw 302 to be smoothly screwed into the pre-drilled threaded hole by inserting an internal hexagonal wrench into the internal hexagonal hole at the end of the threaded sleeve 301 and turning the threaded sleeve 301, which in turn rotates the screw 302. By sequentially screwing all the screws 302 into the corresponding threaded holes, the sensor can be securely installed and fixed, making the operation more convenient.

[0021] According to another embodiment of the present invention, such as Figure 1 and Figure 2As shown, an adjustment assembly 400 is provided between two fasteners 300. The adjustment assembly 400 includes an adjustment sleeve 410 disposed on the outside of one of the fasteners 300 and an adjustment plate 420 disposed on the outside of the other fastener 300. The adjustment plate 420 is inserted into the adjustment sleeve 410. Both the adjustment sleeve 410 and the adjustment plate 420 are made of aluminum alloy. This utility model can facilitate the installation and fixing of various sizes of injection-molded sensor housings 100 by adjusting the distance of the adjustment plate 420 within the adjustment sleeve 410, as well as the normal installation and fixing of sensor housings 100 of the same size with mounting holes 102 having certain errors. It has stronger applicability and greatly improves the efficiency of production and installation.

[0022] According to another embodiment of the present invention, such as Figure 1 and Figure 4 As shown, the adjusting sleeve 410 is also provided with an adjusting groove 411. The adjusting groove 411 is a long strip through groove. A locking member 430 is provided in the adjusting groove 411. This utility model can adjust the distance between the two adjusting grooves 411 by adjusting the position of the locking member 430 in the adjusting groove 411, which is convenient for compensating for the injection molding error of the corresponding two mounting holes 102 of the sensor housing 100 and greatly improves the installation efficiency.

[0023] According to another embodiment of the present invention, such as Figure 2 As shown, the locking component 430 includes a locking rod 431 threadedly connected to the adjusting plate 420. A locking nut 432 is threadedly connected to the outer side of the locking rod 431. The locking rod 431 is made of 304 stainless steel, and the locking nut 432 is made of Q235 carbon structural steel. This utility model can lock the locking rod 431 after it has been adjusted by tightening the locking nut 432, which facilitates the locking operation of the distance between the two locking components 430.

[0024] The positioning component 200 includes a positioning pin 201 inserted into a positioning pin hole 101. A positioning pin head 202 is provided at the end of the positioning pin 201. The cross-sectional area of ​​the end of the positioning pin head 202 is smaller than that of the other end. Both the positioning pin 201 and the positioning pin head 202 are made of 45 steel. This utility model can facilitate fast and efficient positioning and installation operations by designing the positioning pin head 202 to have a small end and a large root, making the operation more convenient.

[0025] According to another embodiment of the present invention, such as Figure 1 and Figure 3As shown, there are two mounting holes 102, and the line connecting the center of the positioning pin hole 101 and the two mounting holes 102 forms a right-angled triangle structure. This utility model can achieve fast and efficient installation and fixing of the housing 100 by cooperating with the positioning pin hole 101 and the mounting hole 102, which greatly improves the installation efficiency of the housing 100.

[0026] How to use this utility model: First, it should be clarified that the sensors involved in this utility model are mainly used for measuring position, temperature, resistance, etc. This utility model takes a resistance temperature sensor as an example to explain its usage in detail. The working principle is as follows: When this measuring sensor is working, the core detection component is a PT100 platinum resistance temperature sensor (model WZP-230, manufactured by Xi'an Yunyi Automation Instrument Co., Ltd.). It utilizes the physical property that the resistance of platinum resistance changes with temperature to convert the ambient temperature signal into a recognizable resistance signal, thereby achieving accurate temperature parameter detection. The housing 100 is made of ABS engineering plastic, which, with its excellent mechanical strength and corrosion resistance, provides a sealed and stable mounting carrier for the measuring element, positioning component 200, fasteners 300, and other components, isolating them from external dust, moisture, and other interference. During the installation and positioning phase, the positioning component 200 plays a crucial role: the positioning pin 201 is made of No. 45 steel to ensure that it is not easily deformed during the positioning process, and its tapered positioning pin head 202 can be quickly aligned and inserted into the positioning hole of the installation foundation to complete the initial positioning of the sensor; the right-angled triangular structure formed by the positioning pin hole 101 and the two mounting holes 102 uses the principle of three points to determine a unique plane to prevent the sensor from shifting during the installation process and ensure positioning accuracy.

[0027] During the tightening stage, the fastener 300 connects the sensor to the mounting base: the waist-shaped mounting hole 102 provides adjustment space for the fastener 300; the threaded sleeve 301 is made of 304 stainless steel, which has corrosion resistance and strength; it is inserted into the mounting hole 102 and can slide along the straight edge, driving the screw 302 to adjust its position to align with the threaded hole of the mounting base; by inserting an Allen wrench into the Allen hole of the threaded sleeve 301, the threaded sleeve 301 can be easily driven to rotate, thereby driving the screw 302, made of 40Cr alloy structural steel, to be screwed into the threaded hole; the high hardness of 40Cr ensures that the screw 302 is not prone to stripping, achieving reliable tightening. During the adjustment phase, the adjustment component 400 adapts to hole position errors and specification differences: both the adjustment sleeve 410 and the adjustment plate 420 are made of aluminum alloy, which has the advantages of being lightweight and having high strength. The adjustment plate 420 can slide along the length of the adjustment sleeve 410 to directly adjust the distance between the two fasteners 300. The adjustment groove 411 is a long strip through groove, and the locking rod 431 made of 304 stainless steel can move along the groove to achieve fine adjustment of the distance, thereby compensating for the deviation of the mounting hole 102 caused by the injection molding of the housing 100 or adapting to the installation requirements of housings 100 of different specifications. During the locking stage, ensure structural stability after installation: After the spacing is adjusted to the correct position, tighten the locking nut 432 made of Q235 carbon structural steel. Its good plasticity allows it to fit tightly against the surface of the adjusting sleeve 410, locking the locking rod 431 in the adjusting groove 411, fixing the relative position of the two fasteners 300, and preventing the sensor from loosening due to vibration during long-term operation. The usage method is as follows: Positioning preparation: Clean the surface of the installation base, remove debris and debris from the positioning holes and threaded holes, and ensure that the installation surface is flat and clean. Preliminary positioning: Hold the sensor housing 100 by hand, align the tapered positioning pin 202 of the positioning component 200 with the positioning hole of the mounting base, and gently apply pressure to insert the positioning pin 202 into the hole to complete the preliminary positioning of the sensor. Adjustment and adaptation: Based on the actual position of the threaded hole of the mounting base and the error of the mounting hole 102 of the housing 100, the position of the sliding threaded sleeve 301 in the mounting hole 102 is adjusted, and the adjusting plate 420 is pushed to slide in the adjusting sleeve 410. This is done in conjunction with adjusting the position of the locking rod 431 in the adjusting groove 411 until the screw 302 is precisely aligned with the threaded hole of the mounting base. Tightening installation: Insert the Allen wrench into the Allen hole of the threaded sleeve 301, turn the wrench clockwise to make the threaded sleeve 301 and the screw 302 rotate synchronously, so that the screw 302 is gradually screwed into the threaded hole until it is tightened; operate the other fastener 300 in the same way. Locking and fixing: After confirming that the sensor is installed securely, use a wrench to tighten the locking nut 432 and lock the locking rod 431 in the adjusting groove 411 to complete the reinforcement after installation. Testing and usage: Connect the signal transmission line to the measuring element, start the detection system, and the sensor will enter the temperature parameter detection working state.

[0028] This invention enables rapid and efficient sensor installation through the structural design of the positioning pin hole 101 and mounting hole 102 on the housing 100. It solves the problems of traditional sensor installation relying on precise measurement of the mounting hole 102 position. If there is a deviation in the hole position, the sensor cannot be installed normally, resulting in a lot of time being spent on hole position calibration before installation, which leads to extremely low installation efficiency. In addition, the sensor lacks an effective adaptation and adjustment structure, making it difficult to meet the installation requirements of housings 100 of different specifications and housings 100 with hole position errors, resulting in poor adaptability.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 according to the specific circumstances.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A measuring sensor, comprising a housing (100) and a measuring element disposed inside the housing (100), characterized in that: The housing (100) is provided with a positioning pin hole (101) and a mounting hole (102). A positioning element (200) is provided in the positioning pin hole (101). The mounting hole (102) is formed by two parallel straight edge segments and two semi-circular arc segments connecting the ends of the two straight edge segments. A fastener (300) is provided in the mounting hole (102).

2. The measuring sensor as described in claim 1, characterized in that: The fastener (300) includes a threaded sleeve (301) inserted into the mounting hole (102), one end of the threaded sleeve (301) having an internal hexagonal hole, and the other end of the threaded sleeve (301) being threadedly connected to a screw (302).

3. The measuring sensor as described in claim 1, characterized in that: An adjustment assembly (400) is provided between the two fasteners (300). The adjustment assembly (400) includes an adjustment sleeve (410) disposed on the outside of one of the fasteners (300) and an adjustment plate (420) disposed on the outside of the other fastener (300). The adjustment plate (420) is inserted into the adjustment sleeve (410).

4. The measuring sensor as described in claim 3, characterized in that: The adjusting sleeve (410) is also provided with an adjusting groove (411), and a locking element (430) is provided in the adjusting groove (411).

5. The measuring sensor as described in claim 4, characterized in that: The locking element (430) includes a locking rod (431) threaded onto the adjusting plate (420), and a locking nut (432) is threaded onto the outer side of the locking rod (431).

6. The measuring sensor as described in claim 1, characterized in that: The positioning component (200) includes a positioning pin (201) inserted into a positioning pin hole (101), and a positioning pin head (202) is provided at the end of the positioning pin (201), wherein the cross-sectional area of ​​the end of the positioning pin head (202) is smaller than the cross-sectional area of ​​the other end.

7. The measuring sensor as described in claim 1, characterized in that: There are two mounting holes (102), and the line connecting the center of the positioning pin hole (101) and the two mounting holes (102) forms a right triangle structure.

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