A mine wireless pressure sensor

Abstract

The utility model belongs to the technical field of mine pressure sensor, disclose a mine wireless pressure sensor. The utility model discloses a mine wireless pressure sensor, including probe, casing, pressure sensor spare, circuit board assembly, wireless communication board assembly and plug. The utility model discloses a mine wireless pressure sensor, and the hydraulic interface of probe is connected into the hydraulic system, for example, is connected into the pressure hole of hydraulic support stand column cylinder lower cavity auxiliary valve, and the sensing end sensing pressure signal of pressure sensor spare is uploaded to circuit board assembly, and circuit board assembly transmits the signal to the outside through wireless communication board assembly, and thus, to realize the wireless signal communication of pressure sensor. The utility model discloses a mine wireless pressure sensor, simple structure, compact component arrangement, smaller, can realize the miniaturization design of product, and it is convenient to install and use on the hydraulic support.

Description

Technical Field

[0001] This utility model relates to the field of mining pressure sensor technology, specifically to a wireless pressure sensor for mining. Background Technology

[0002] Hydraulic supports are one of the essential pieces of equipment in fully mechanized coal mining faces, providing working space for safe and efficient mining operations. With the continuous development of technology, mining equipment is moving towards unmanned and intelligent operation. For hydraulic supports, pressure sensors are needed to monitor the pressure of their hydraulic cylinders, especially the column cylinders. Monitoring pressure changes through pressure sensors reflects the pressure conditions of the roof of the working face, ensuring that the hydraulic supports provide safe and stable support to the roof.

[0003] Currently, mine pressure sensors are generally wired, requiring signal cables to be laid at the working face to communicate with the control unit. However, laying these signal cables is cumbersome, and wired mine pressure sensors have poor self-protection, making the signal cables highly susceptible to damage from flying coal and rock debris at the working face. Furthermore, current mine pressure sensors have complex structures, are large in size, and occupy considerable space, making them inconvenient to install on hydraulic supports. Utility Model Content

[0004] The purpose of this invention is to propose a wireless pressure sensor for mining, which enables wireless signal communication and has a simple, compact structure and small size, thus achieving miniaturized product design.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] A wireless pressure sensor for mining applications, comprising:

[0007] The probe has a hydraulic interface at its front end;

[0008] The housing has a probe connected to its front end;

[0009] A pressure sensor element is disposed inside the probe and / or housing, and the sensing end of the pressure sensor element is connected to the hydraulic interface of the probe.

[0010] The circuit board assembly is located inside the housing, and the circuit board assembly is connected to the signal terminal of the pressure sensor via a signal cable;

[0011] The wireless communication board assembly is located inside the housing and is connected to the circuit board assembly via signal cables.

[0012] The plug connects to the rear end of the housing.

[0013] Furthermore, a first assembly groove is formed at the rear end of the probe, and the pressure sensor is disposed in the first assembly groove.

[0014] Furthermore, sealant is poured into the first assembly groove, and the sealant encapsulates the pressure sensor component.

[0015] Furthermore, the rear end of the probe is fitted inside the front end of the housing.

[0016] Furthermore, a battery assembly is disposed inside the housing.

[0017] Furthermore, the signal cable connecting the circuit board assembly and the wireless communication board assembly is configured as a signal connector.

[0018] Furthermore, the wireless communication board assembly includes a Bluetooth communication module and / or a near-field wireless communication module.

[0019] Furthermore, a step is provided inside the rear end of the housing, and the edge of the circuit board assembly overlaps the step.

[0020] Furthermore, a second assembly slot is provided at the rear end of the plug, and the wireless communication board assembly is located in the second assembly slot.

[0021] Furthermore, the rear end of the housing is provided with a threaded hole, and the front end of the plug is provided with an external thread, the front end of the plug being threadedly connected to the rear end of the housing.

[0022] The beneficial effects of this utility model are as follows:

[0023] The wireless pressure sensor for mining applications of this invention connects to the hydraulic system via the probe's hydraulic interface, such as the pressure measuring port of the auxiliary valve in the lower chamber of the hydraulic support column cylinder. The pressure sensor's sensing end senses the pressure signal and uploads it to the circuit board assembly. The circuit board assembly then transmits the signal outward through the wireless communication board assembly, thereby achieving wireless signal communication of the pressure sensor.

[0024] The wireless pressure sensor for mining applications of this invention has a simple structure, compact component arrangement, and small size, enabling miniaturized product design and facilitating installation and use on hydraulic supports. Attached Figure Description

[0025] Figure 1 This is a perspective view of a mining wireless pressure sensor according to an embodiment of the present invention;

[0026] Figure 2 This is the front view of the wireless pressure sensor for mining, as described in this utility model embodiment. Figure 1 ;

[0027] Figure 3This is the front view of the wireless pressure sensor for mining, as described in this utility model embodiment. Figure 2 , Figure 3 The middle shell and the plug are shown in section.

[0028] Figure 4 This is a right view of a mining wireless pressure sensor according to an embodiment of the present invention;

[0029] Figure 5 This is a perspective view of the housing according to an embodiment of the present utility model;

[0030] Figure 6 This is a front view of the housing according to an embodiment of the present invention;

[0031] Figure 7 for Figure 6 Sectional view of AA;

[0032] Figure 8 This is a bottom view of the housing according to an embodiment of the present invention;

[0033] Figure 9 This is a perspective view of the plug according to an embodiment of the present utility model;

[0034] Figure 10 This is a front view of the plug according to an embodiment of the present utility model;

[0035] Figure 11 for Figure 10 BB section view;

[0036] Figure 12 This is a bottom view of the plug according to an embodiment of the present utility model;

[0037] Figure 13 This is a perspective view of the probe in an embodiment of the present invention;

[0038] Figure 14 This is a perspective view of the circuit board assembly and the wireless communication board assembly connected in an embodiment of the present invention;

[0039] Figure 15 This is a perspective view of the circuit board assembly and signal pins after they are connected in an embodiment of this utility model;

[0040] Figure 16 This is a top view of the wireless communication board assembly according to an embodiment of the present invention. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Combination Figures 1 to 16 As shown, this utility model proposes a wireless pressure sensor for mining, including a probe 1, a housing 2, a pressure sensor component 3, a circuit board assembly 4, a wireless communication board assembly 5, and a plug 6.

[0044] The front end of the probe 1 is provided with a hydraulic interface 11, which is used to connect to a hydraulic system, such as the pressure test hole of the auxiliary valve in the lower chamber of the hydraulic support column cylinder.

[0045] The housing 2 is a cylindrical sleeve structure, and the front end of the housing 2 is connected to the probe 1. The rear end of the probe 1 is cylindrical, and the outer diameter of the rear end of the probe 1 is smaller than the inner diameter of the front end of the housing 2. The rear end of the probe 1 is nested in the front end of the housing 2, and the probe 1 and the housing 2 are welded together as one unit.

[0046] The pressure sensor 3 is disposed inside the probe 1 and / or the housing 2. The sensing end of the pressure sensor 3 is connected to the hydraulic interface 11 of the probe 1. Hydraulic oil enters the hydraulic interface 11 and acts on the sensing end of the pressure sensor 3, allowing the pressure sensor 3 to sense the pressure value. In this embodiment, a first mounting groove 12 is formed at the rear end of the probe 1, and the pressure sensor 3 is disposed in the first mounting groove 12. Sealant 13 is poured into the first mounting groove 12, and the sealant 13 wraps around the pressure sensor 3 to achieve assembly, fixation, and sealing of the pressure sensor 3, ensuring a firm assembly of the pressure sensor 3. The rear end of the probe 1 is nested inside the front end of the housing 2, and the pressure sensor 3 is disposed at the rear end of the probe 1, thus the pressure sensor 3 is located inside the probe 1 and the housing 2.

[0047] The circuit board assembly 4 is disposed inside the housing 2, and the circuit board assembly 4 is connected to the signal terminal of the pressure sensor 3 via the first signal cable 71. The pressure value signal sensed by the pressure sensor 3 is uploaded to the circuit board assembly 4 via the first signal cable 71.

[0048] The wireless communication board assembly 5 is located inside the housing 2, and is connected to the circuit board assembly 4 via a second signal cable. The second signal cable connecting the circuit board assembly 4 and the wireless communication board assembly 5 is configured with signal pins (spring pin 721 and ordinary pin 722). The circuit board assembly 4 transmits signals such as pressure values ​​outward via the wireless communication board assembly 5.

[0049] The wireless communication board assembly 5 includes a Bluetooth communication module and a short-range wireless communication module. The circuit board assembly 4 is connected to the Bluetooth communication module via a spring-loaded pin 721, and to the short-range wireless communication module via a standard pin 722. This arrangement places the wireless communication board assembly 5 behind the circuit board assembly 4, resulting in a compact layout of both assemblies within the housing 2 and a smaller overall size of the housing 2.

[0050] A battery assembly 8 is located inside the housing 2, slightly towards the front center. This battery assembly 8 supplies power to the various electrical components. When the battery in the battery assembly 8 is low on power, the battery can be replaced by opening the plug 6.

[0051] The rear end of the housing 2 has a step 21, and the edge of the circuit board assembly 4 overlaps the step 21. The rear end of the plug 6 has a second mounting groove 61, and the wireless communication board assembly 5 is located in the second mounting groove 61. Based on this, with the support of signal pins (spring pins 721 and ordinary pins 722), the circuit board assembly 4 is firmly engaged with the step 21, and the wireless communication board assembly 5 is firmly engaged with the second mounting groove 61.

[0052] The plug 6 is connected to the rear end of the housing 2. The rear end of the housing 2 has a threaded hole 22 inside, and the front end of the plug 6 has an external thread 62. The external thread 62 at the front end of the plug 6 is threaded into the threaded hole 22 at the rear end of the housing 2. This allows the plug 6 to be installed and removed from the rear end of the housing 2 for easy battery replacement.

[0053] The present invention has been described in detail above with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the wireless pressure sensor for mining applications of this invention. The wireless pressure sensor for mining applications described in this invention connects to the hydraulic system via the hydraulic interface 11 of the probe 1, for example, to the pressure measuring port of the auxiliary valve in the lower chamber of the hydraulic support column cylinder. The pressure signal is sensed by the sensing end of the pressure sensor component 3 and uploaded to the circuit board assembly 4. The circuit board assembly 4 transmits the signal outward through the wireless communication board assembly 5, thus realizing wireless signal communication of the pressure sensor. The wireless pressure sensor for mining applications of this invention has a simple structure, compact component arrangement, and small size, enabling miniaturized product design and facilitating installation and use on hydraulic supports.

[0054] Of course, 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 and should be protected by the present utility model.

Claims

1. A wireless pressure sensor for mining, characterized in that, include: The probe has a hydraulic interface at its front end; The housing has a probe connected to its front end; A pressure sensor element is disposed inside the probe and / or housing, and the sensing end of the pressure sensor element is connected to the hydraulic interface of the probe. The circuit board assembly is located inside the housing, and the circuit board assembly is connected to the signal terminal of the pressure sensor via a signal cable; The wireless communication board assembly is located inside the housing and is connected to the circuit board assembly via signal cables. The plug connects to the rear end of the housing.

2. The wireless pressure sensor for mining according to claim 1, characterized in that, The probe has a first assembly slot at its rear end, and the pressure sensor is disposed in the first assembly slot.

3. The wireless pressure sensor for mining according to claim 2, characterized in that, Sealant is poured into the first assembly slot, and the sealant encapsulates the pressure sensor component.

4. The wireless pressure sensor for mining according to claim 2, characterized in that, The rear end of the probe is fitted inside the front end of the housing.

5. The wireless pressure sensor for mining according to claim 1, characterized in that, The housing contains a battery assembly.

6. The wireless pressure sensor for mining according to claim 1, characterized in that, The signal cable connecting the circuit board assembly and the wireless communication board assembly is configured as a signal connector.

7. The wireless pressure sensor for mining according to claim 1 or 6, characterized in that, The wireless communication board assembly includes a Bluetooth communication module and / or a short-range wireless communication module.

8. The wireless pressure sensor for mining according to claim 1, characterized in that, The rear end of the housing has a step inside, and the edge of the circuit board assembly overlaps the step.

9. The wireless pressure sensor for mining according to claim 1, characterized in that, The plug has a second assembly slot at its rear end, and the wireless communication board assembly is located in the second assembly slot.

10. The wireless pressure sensor for mining according to claim 1, characterized in that, The rear end of the housing is provided with a threaded hole, and the front end of the plug is provided with an external thread, the front end of the plug being threadedly connected to the rear end of the housing.

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