Compression-resistant and anti-freezing pressing plate for sensor

Abstract

The utility model relates to the technical field of water meter sensors, and provides a pressure-resistant and anti-freezing pressing plate for a sensor, which comprises a pipeline and a shell movably mounted on the pipeline, an embedded structure is arranged in the shell, a connecting pipe is fixedly connected to the outer surface of the pipeline, an energy converter is movably arranged in the connecting pipe, and the energy converter is fixedly connected to the outer surface of the pipeline. A sealing assembly is fixedly connected to the outer side surface, close to the upper end, of the connecting pipe. The embedded structure comprises a connecting groove formed in the lower end of the pipeline, an embedded stainless steel plate is embedded in the shell, and a positioning assembly is arranged on the outer surface of the embedded stainless steel plate; the positioning assembly comprises a through hole formed in the outer surface of the embedded stainless steel plate, a positioning rod is movably arranged in the through hole, an elastic ball is fixedly connected to the top end of the positioning rod, and a positioning piece is fixedly connected to the outer surface of the positioning rod. According to the technical scheme, the problems of large occupied space, low strength and poor compression resistance and frost resistance due to the fact that a stainless steel plate for fixing a transducer and a shell of an existing sensor structure are designed in a separated mode are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water meter sensors, and in particular to a pressure-resistant and antifreeze pressure plate for a sensor. Background Art

[0002] The temperature sensor in the water meter is used to detect the current temperature of the water in the water pipe. The detection of water temperature is helpful to maintain the accuracy of the water meter in detecting water flow.

[0003] After searching, a sensor circuit board structure and a sensor with the authorization announcement number CN209166471U were found. The sensor circuit board structure provided by the application does not require the circuit board to be screwed or pressed for positioning, which overcomes the defects of poor process consistency and low reliability in the prior art due to the circuit board being in a vibration environment for a long time. Compared with the prior art, the sensor circuit board structure provided by the application has significantly improved process consistency and reliability, and greatly improves the accuracy of vibration and impact signal detection;

[0004] However, the stainless steel plate used to fix the transducer in the above-mentioned existing sensor structure is separated from the housing, which occupies a large space, has low strength and poor pressure and anti-freezing performance. Therefore, we propose a pressure and anti-freezing pressure plate for the sensor. Utility Model Content

[0005] The utility model provides a pressure-resistant and antifreeze plate for a sensor, which solves the problem mentioned in the background technology that the stainless steel plate used to fix the transducer in the existing sensor structure is separated from the shell, occupies a large space, has low strength and poor pressure-resistant and antifreeze performance.

[0006] The technical solution of the utility model is as follows:

[0007] A pressure-resistant and antifreeze plate for a sensor, comprising a pipe and a shell movably mounted on the pipe, an embedded structure is arranged inside the shell, a connecting pipe is fixedly connected to the outer surface of the pipe, a transducer is movably arranged inside the connecting pipe, and a sealing component is fixedly connected to the outer surface of the connecting pipe near the upper end;

[0008] The embedded structure includes a connection groove opened at the lower end of the pipeline, an embedded stainless steel plate is embedded in the interior of the shell, and a positioning component is arranged on the outer surface of the embedded stainless steel plate;

[0009] The positioning assembly includes a through hole opened on the outer surface of the embedded stainless steel plate, a positioning rod is movably arranged inside the through hole, an elastic ball is fixedly connected to the top of the positioning rod, and a positioning sheet is fixedly connected to the outer surface of the positioning rod.

[0010] As a further technical solution of the utility model, a probe seat is fixedly connected to the outer surface of the pipe, a latch is connected between the shell and the probe seat, and an embedded temperature measuring probe is connected to the lower end of the shell corresponding to the inner side of the probe seat.

[0011] As a further technical solution of the utility model, the sealing assembly includes an elastic layer connected to the outer surface of the transducer, an inner ring body is fixedly connected to the outer surface of the transducer corresponding to the axis of the elastic layer, and an airbag is arranged between the inner ring body and the elastic layer.

[0012] As a further technical solution of the utility model, the embedded stainless steel plate and the connecting groove are combined together by one-time inlay injection molding, the diameter of the positioning rod is equal to the diameter of the through hole, and the elastic ball is made of elastic rubber material.

[0013] As a further technical solution of the utility model, the material of the positioning plate is the same as that of the embedded stainless steel plate, the through holes are in several groups and distributed in an array, the spherical diameter of the elastic ball is larger than the diameter of the positioning rod, and the larger part does not exceed one quarter of the diameter of the positioning component.

[0014] As a further technical solution of the utility model, the distance from the positioning piece to the lower end of the elastic ball is equal to the depth of the through hole, and the material of the positioning rod is the same as that of the shell.

[0015] As a further technical solution of the utility model, the elastic layer, the inner ring body and the airbag are all annular structures that match the outer surface of the connecting pipe. The elastic layer is made of elastic material. When the shell and the pipeline are connected, the outer surface of the elastic layer is in linear contact with the shell.

[0016] As a further technical solution of the utility model, the interior of the airbag is filled with gas that expands when heated, the inner ring body and the connecting tube are both made of heat-conducting materials, and the heat generated by the transducer causes the airbag to expand.

[0017] The working principle and beneficial effects of the utility model are:

[0018] 1. In the utility model, through the effect of the embedded structure, the embedded stainless steel plate and the shell can be combined together through an integrated injection molding process when in use, thereby increasing the overall strength of the shell, saving space and cost, and effectively playing a role in corrosion and rust prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 For this utility model Figure 1 A schematic diagram of the structure from another perspective;

[0022] Figure 3 It is a schematic diagram of the local structure of the utility model in which the embedded stainless steel plate and the shell are separated;

[0023] Figure 4 It is a partial structural schematic diagram of the positioning rod of the utility model being disassembled and installed on the embedded stainless steel plate;

[0024] Figure 5 It is a partial front cross-sectional view of the sealing component of the utility model.

[0025] In the figure: 1. pipeline; 2. shell; 3. embedded structure; 31. connecting groove; 32. embedded stainless steel plate; 33. positioning assembly; 331. through hole; 332. positioning rod; 333. elastic ball; 334. positioning sheet; 4. connecting pipe; 5. transducer; 6. sealing assembly; 61. elastic layer; 62. inner ring body; 63. airbag; 7. probe seat; 8. latch; 9. embedded temperature probe. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0027] Example 1

[0028] like Figure 1 to Figure 4 As shown, this embodiment proposes an anti-pressure and anti-freeze pressure plate for a sensor, including a pipe 1 and a shell 2 movably installed on the pipe 1, an embedded structure 3 is arranged inside the shell 2, a connecting pipe 4 is fixedly connected to the outer surface of the pipe 1, a transducer 5 is movably arranged inside the connecting pipe 4, and a sealing component 6 is fixedly connected to the outer surface of the connecting pipe 4 near the upper end; a probe seat 7 is fixedly connected to the outer surface of the pipe 1, a latch part 8 is connected between the shell 2 and the probe seat 7, and an embedded temperature measuring probe 9 is connected to the lower end of the shell 2 corresponding to the inner side of the probe seat 7.

[0029] The embedded structure 3 includes a connection groove 31 opened at the lower end of the pipe 1, an embedded stainless steel plate 32 is embedded in the shell 2, and a positioning component 33 is arranged on the outer surface of the embedded stainless steel plate 32;

[0030] The positioning assembly 33 includes a through hole 331 opened on the outer surface of the embedded stainless steel plate 32. A positioning rod 332 is movably arranged inside the through hole 331. An elastic ball 333 is fixedly connected to the top of the positioning rod 332. A positioning sheet 334 is fixedly connected to the outer surface of the positioning rod 332.

[0031] The embedded stainless steel plate 32 and the connecting groove 31 are combined together by one-time inlay injection molding. The diameter of the positioning rod 332 is equal to the diameter of the through hole 331, and the elastic ball 333 is made of elastic rubber material; the material of the positioning piece 334 is the same as that of the embedded stainless steel plate 32, and the through holes 331 are divided into several groups and distributed in an array. The spherical diameter of the elastic ball 333 is larger than the diameter of the positioning rod 332, and the larger part does not exceed one quarter of the diameter of the positioning component 33; the distance from the positioning piece 334 to the lower end of the elastic ball 333 is equal to the depth of the through hole 331, and the material of the positioning rod 332 is the same as that of the shell 2.

[0032] In this embodiment, during injection molding production, the user can first insert one end of the elastic ball 333 at the upper end of the positioning rod 332 into the position corresponding to the through hole 331 until the upper end of the elastic ball 333 is exposed from the hole of the through hole 331. At this time, the outer surface of the positioning piece 334 fits with the outer surface of the lower end of the embedded stainless steel plate 32, which can form an interval positioning effect, which is conducive to the rapid injection molding. At the same time, the embedded stainless steel plate 32 and the shell 2 are combined together through the injection molding technology, which is not only simple to assemble, but also can increase the overall strength of the shell 2, effectively reduce the occupied space, greatly save costs, and have anti-corrosion and anti-rust effects.

[0033] When in use, the embedded stainless steel plate 32 and the shell 2 can be combined together through an integral injection molding process, thereby increasing the overall strength of the shell 2, saving space and cost, and effectively playing a role in corrosion and rust prevention.

[0034] Example 2

[0035] like Figure 5 As shown, based on Example 1, it is also proposed that the sealing assembly 6 includes an elastic layer 61 connected to the outer surface of the transducer 5, and an inner ring body 62 is fixedly connected to the outer surface of the transducer 5 at the axis of the elastic layer 61, and an airbag 63 is arranged between the inner ring body 62 and the elastic layer 61.

[0036] The elastic layer 61, the inner ring body 62 and the airbag 63 are all annular structures that match the outer surface of the connecting tube 4. The elastic layer 61 is made of elastic material. When the shell 2 and the pipeline 1 are connected, the outer surface of the elastic layer 61 and the shell 2 are in line contact. The interior of the airbag 63 is filled with gas that expands due to heat. The inner ring body 62 and the connecting tube 4 are both made of heat-conducting materials. The heat generated by the transducer 5 causes the airbag 63 to expand.

[0037] In this embodiment, after the shell 2 and the connecting tube 4 are fitted together, a certain amount of heat is generated due to the use of the transducer 5. The heat is transferred to the inner ring body 62 and the airbag 63 through the connecting tube 4. The gas in the airbag 63 expands due to the heat, so that the elastic layer 61 and the shell 2 are fitted together, so that the embedded stainless steel plate 32 is not outside and is not easily contacted with the outside world and corroded by external substances.

[0038] During use, the stability of the transducer 5 can cause the sealing assembly 6 to expand as a whole, so that the sealing assembly 6 and the shell 2 fit tightly, thereby enhancing the tightness of the connection between the shell 2 and the connecting pipe 4.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-resistant and antifreeze pressure plate for a sensor, comprising a pipe (1) and a housing (2) movably mounted on the pipe (1), characterized in that: An embedded structure (3) is provided inside the housing (2); a connecting pipe (4) is fixedly connected to the outer surface of the pipeline (1); a transducer (5) is movably provided inside the connecting pipe (4); and a sealing component (6) is fixedly connected to the outer surface of the connecting pipe (4) near the upper end; The embedded structure (3) comprises a connection groove (31) provided at the lower end of the pipeline (1); an embedded stainless steel plate (32) is embedded in the interior of the housing (2); and a positioning component (33) is provided on the outer surface of the embedded stainless steel plate (32); The positioning assembly (33) comprises a through hole (331) formed on the outer surface of the embedded stainless steel plate (32); a positioning rod (332) is movably arranged inside the through hole (331); an elastic ball (333) is fixedly connected to the top of the positioning rod (332); and a positioning sheet (334) is fixedly connected to the outer surface of the positioning rod (332).

2. The anti-compression and anti-freezing pressure plate for the sensor according to claim 1, characterized in that: The outer surface of the pipe (1) is fixedly connected to a probe seat (7), a latch member (8) is connected between the shell (2) and the probe seat (7), and an embedded temperature measuring probe (9) is connected to the lower end of the shell (2) corresponding to the inner side of the probe seat (7).

3. The anti-compression and anti-freezing pressure plate for the sensor according to claim 2, characterized in that: The sealing assembly (6) comprises an elastic layer (61) connected to the outer surface of the transducer (5); an inner ring body (62) is fixedly connected to the outer surface of the transducer (5) at the axis of the elastic layer (61); and an air bag (63) is provided between the inner ring body (62) and the elastic layer (61).

4. The anti-compression and anti-freezing pressure plate for the sensor according to claim 2, characterized in that: The embedded stainless steel plate (32) and the connecting groove (31) are connected together by one-time inlay injection molding. The diameter of the positioning rod (332) is equal to the diameter of the through hole (331). The elastic ball (333) is made of elastic rubber material.

5. The anti-compression and anti-freezing pressure plate for the sensor according to claim 4, characterized in that: The material of the positioning piece (334) is the same as that of the embedded stainless steel plate (32), the through holes (331) are arranged in a plurality of groups and are distributed in an array, the diameter of the elastic ball (333) is larger than the diameter of the positioning rod (332), and the larger part does not exceed one quarter of the diameter of the positioning component (33).

6. The anti-compression and anti-freezing pressure plate for the sensor according to claim 5, characterized in that: The distance between the positioning piece (334) and the lower end of the elastic ball (333) is equal to the depth of the through hole (331), and the material of the positioning rod (332) is the same as that of the housing (2).

7. The anti-compression and anti-freezing pressure plate for a sensor according to claim 3, characterized in that: The elastic layer (61), the inner ring body (62) and the airbag (63) are all quasi-annular structures matching the outer surface of the connecting pipe (4); the elastic layer (61) is made of elastic material; when the shell (2) and the pipeline (1) are in a connected state, the outer surface of the elastic layer (61) and the shell (2) are in a linear contact state.

8. The anti-compression and anti-freezing pressure plate for the sensor according to claim 7, characterized in that: The interior of the airbag (63) is filled with gas that expands when heated, and the inner ring body (62) and the connecting pipe (4) are both made of heat-conducting materials. The heat generated by the transducer (5) causes the airbag (63) to expand.

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