Intrinsic safety type mine smoke sensor

Abstract

The utility model provides an intrinsic safety type mine smoke sensor. The intrinsic safety type mine smoke sensor comprises a mounting seat, a bearing seat, a protection assembly and a sensor body, a mounting notch is formed in the mounting seat, a splicing connector is arranged on the top surface of the bearing seat, and the top end position of the splicing connector is adjustably inserted into the mounting notch. The protection assembly comprises a connecting ring and a supporting ring, and the supporting ring is connected with the connecting ring through a cleaning roller brush. A rotatable protection pipe is further arranged in the protection assembly, a plurality of air inlets are formed in the protection pipe, and the outer side wall of the protection pipe makes contact with the cleaning roller brush. The sensor body is arranged in the protection tube, and the top end of the sensor body is connected with the bottom surface of the bearing seat. According to the intrinsic safety type mine smoke sensor, the position of the bearing seat can be flexibly adjusted, follow-up overhaul and maintenance can be conveniently carried out, the protection pipe can be regularly cleaned, and the air inlet is prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of sensor, especially is involved in a kind of intrinsic safety type mine smoke sensor. BACKGROUND

[0002] The intrinsic safety type mine smoke sensor is a detection device for detecting the smoke concentration inside the mine. When the smoke concentration inside the mine exceeds the preset threshold, the intrinsic safety type mine smoke sensor will issue an alarm, reminding the staff to find the safety hazard in time.

[0003] Because there are a lot of dust and coal cinder in the mine, a lot of dust will adhere to the smoke sensor after a long time of use. These dusts will block the air inlet outside the smoke sensor, causing the sensitivity of the smoke sensor to decrease and affecting its normal working effect. At the same time, the existing smoke sensor has poor installation convenience. After installation, the staff cannot flexibly adjust its installation position, nor can they quickly disassemble its shell, thus increasing the difficulty of subsequent maintenance and repair, causing the staff to consume a lot of time during maintenance and repair. SUMMARY

[0004] Therefore, the utility model aims at providing an intrinsic safety type mine smoke sensor to solve the above technical problems.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] An intrinsic safety type mine smoke sensor comprises a mounting seat, a bearing seat, a protection assembly and a sensor body. The mounting seat comprises a positioning plate and a mounting plate. The top surface of the mounting plate is connected to the bottom surface of the positioning plate through a connecting plate, and a mounting cutout is provided on the mounting plate. The top surface of the bearing seat is provided with a splice connector. A wiring port is provided on the side wall of the splice connector. The top end position of the splice connector is adjustably inserted into the mounting cutout. The protection assembly comprises a connecting ring and a supporting ring. The top surface of the supporting ring is connected to the bottom surface of the connecting ring through a cleaning roller brush. The connecting ring is detachably connected to the bearing seat. A rotatable protection tube is further provided in the protection assembly. A plurality of air inlets are provided on the protection tube. The outer side wall of the protection tube is in contact with the cleaning roller brush. The sensor body is arranged in the protection tube. The top end of the sensor body is connected to the bottom surface of the bearing seat. The sensor body is electrically connected to the wiring port.

[0007] Further, the protection assembly further comprises an operating head. The operating head is located below the supporting ring. A flow guide channel is provided between the operating head and the protection tube. The top surface of the operating head is connected to the bottom end surface of the protection tube through a connecting rod.

[0008] Further, the inner side wall of the connecting ring is provided with a first limiting ring, and the inner diameter of the first limiting ring is equal to the outer diameter of the protection tube; the top end of the protection tube is provided with a second limiting ring, the second limiting ring is located above the first limiting ring, and the outer diameter of the second limiting ring is greater than the inner diameter of the first limiting ring.

[0009] Further, the top of the operating head is provided with a flow guide cone surface with a pointed end upward.

[0010] Further, the splice connector comprises a limiting disc, a connecting column and a bearing column connected in sequence from top to bottom, the connecting column is arranged in the installation cutout, the limiting disc is located above the mounting plate, and the outer diameter of the limiting disc is greater than the cutout width of the installation cutout, and the wiring port is arranged on the side wall of the bearing column, and the outer diameter of the bearing column is greater than the outer diameter of the connecting column.

[0011] Further, the mounting plate is provided with a mounting hole, one end of the installation cutout is in communication with the mounting hole, and the inner diameter of the mounting hole is greater than the outer diameter of the limiting disc.

[0012] Further, the bottom surface of the limiting disc is provided with a positioning protrusion, and a plurality of positioning grooves for accommodating the positioning protrusion are arranged on the top surface of the mounting plate along the length direction of the installation cutout.

[0013] Further, the connecting column is provided with a spring, the bottom end of the spring abuts against the top surface of the bearing column, and the top end of the spring abuts against the bottom surface of the mounting plate.

[0014] Compared with the prior art, the intrinsic safety type mine smoke sensor has the following advantages:

[0015] The splice connector is arranged on the top surface of the bearing seat, and the installation cutout is arranged on the mounting seat. When installing, the staff can first fix the mounting seat at the preset installation position, and then quickly complete the installation work through the splice of the splice connector and the installation cutout. When the device needs to be maintained, the staff can adjust the position of the splice connector in the installation cutout according to the actual demand, thereby reducing the operation difficulty. In addition, the device is provided with a cleaning roller brush in the protection assembly, and a rotatable protection tube is arranged in the protection assembly. After the device is used for a period of time, the staff can drive the protection tube to rotate, so as to brush the protection tube by means of the cleaning roller brush, thereby avoiding the blockage of the air inlet on the protection tube due to dust adhesion. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 The structure diagram of the intrinsic safety type mine smoke sensor is shown in the embodiment of the utility model;

[0018] Figure 2 The sectional view of the intrinsic safety type mine smoke sensor is shown in the embodiment of the utility model;

[0019] Figure 3 The explosion view of the intrinsic safety type mine smoke sensor is shown in the embodiment of the utility model;

[0020] Figure 4 The structure diagram of the mounting seat is shown in the embodiment of the utility model;

[0021] Figure 5 The structure diagram of the bearing seat and the sensor body is shown in the embodiment of the utility model;

[0022] Figure 6 The structure diagram of the protection assembly and the protection pipe is shown in the embodiment of the utility model.

[0023] Mark explanation:

[0024] 11-positioning plate; 12-mounting plate; 121-mounting cutout; 122-mounting hole; 123-positioning groove; 13-connection plate; 2-bearing seat; 31-limiting disc; 311-positioning protrusion; 32-connection column; 321-spring; 33-bearing column; 331-wiring port; 41-connection ring; 411-first limiting ring; 42-supporting ring; 43-cleaning roller brush; 5-protection pipe; 51-air inlet; 52-operation head; 521-flow guide cone surface; 53-connection rod; 54-second limiting ring; 6-sensor body. Specific implementation

[0025] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0026] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "internal", "external" and so on the orientation or positional relation indicated is based on the orientation or positional relation shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element indicated must have a particular orientation, a particular orientation configuration and operation, therefore can not be understood as the restriction of the utility model. In addition, the term "first", "second" and so on are just for the description purpose, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and so on can be explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0027] In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0028] The utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0029] An intrinsic safety type mine smoke sensor, the structure thereof can be composed of Figures 1-6 schematically. In the embodiment, the intrinsic safety type mine smoke sensor comprises a mounting seat, a bearing seat 2, a protection assembly and a sensor body 6, wherein the mounting seat and the bearing seat 2 are used for providing assembly positioning bases for other components in the device, the sensor body 6 is used for detecting the smoke concentration in the environment, and the protection assembly is used for protecting the sensor body 6 and facilitating the staff to clean the dust regularly.

[0030] Specifically, the mounting base includes a positioning plate 11 and a mounting plate 12. The top surface of the mounting plate 12 is connected to the bottom surface of the positioning plate 11 via a connecting plate 13. The mounting plate 12 has a mounting notch 121, and the top surface of the support base 2 has a splicing connector. The protection assembly includes a connecting ring 41 and a support ring 42. The top surface of the support ring 42 is connected to the bottom surface of the connecting ring 41 via a cleaning roller brush 43, and the connecting ring 41 is detachably connected to the support base 2. The protection assembly also includes a rotatable protection tube 5 with multiple air inlets 51. The outer wall of the protection tube 5 is in contact with the cleaning roller brush 43. The sensor body 6 is located inside the protection tube 5, and the top of the sensor body 6 is connected to the bottom surface of the support base 2.

[0031] During assembly, the operator first fixes the mounting base within the preset area, then inserts the top of the splice connector into the installation slot 121, thereby installing the sensor body 6 into the preset area through the cooperation of the mounting base and the support seat 2. Next, the operator can adjust the position of the top of the splice connector within the installation slot 121 according to actual needs to avoid obstructing other equipment inside the mine. Correspondingly, when maintenance of the sensor body 6 is required, the operator can also adjust the position of the top of the splice connector within the installation slot 121 to create more operating space and reduce the difficulty of maintenance. Furthermore, since the protective tube 5 can rotate inside the protective assembly, and the outer wall of the protective tube 5 is in contact with the cleaning roller brush 43, after a period of use, the operator can also use the rotation of the protective tube 5 to allow the cleaning roller brush 43 to scrub the protective tube 5, thereby removing dust adhering to the outer wall of the protective tube 5, preventing dust from obstructing the air inlet 51, and ensuring the device achieves good working performance.

[0032] In addition, to facilitate the sensor body 6 to obtain power and to enable data communication between the sensor body 6 and the host computer, a wiring port 331 is provided on the side wall of the connector, and the sensor body 6 should be electrically connected to the wiring port 331. It should be noted that the sensor body 6 in this embodiment is a common intrinsically safe smoke sensor, and the wiring port 331 is a line interface that cooperates with a common intrinsically safe smoke sensor. The internal structure, working principle and related wiring connection method of the above components are well known, so they will not be described in detail in this application.

[0033] like Figure 5As shown, in this embodiment, the splice joint may include a limiting plate 31, a connecting post 32, and a supporting post 33 connected sequentially from top to bottom. The outer diameter of the limiting plate 31 should be larger than the width of the mounting cut 121, and the outer diameter of the supporting post 33 should be larger than the outer diameter of the connecting post 32. The wiring port 331 is located on the side wall of the supporting post 33. During the assembly between the supporting base 2 and the mounting base, the connecting post 32 should be placed inside the mounting cut 121, and the limiting plate 31 should be located above the mounting plate 12. Because the outer diameter of the limiting plate 31 is larger than the width of the mounting cut 121, the top surface of the mounting plate 12 will block the limiting plate 31, thereby preventing the splice joint from separating from the mounting cut 121.

[0034] Optionally, to facilitate inserting the limiting plate 31 into the mounting plate 12, such as... Figure 4 As shown, the mounting plate 12 may be provided with a mounting hole 122 with an inner diameter larger than the outer diameter of the limiting plate 31, and one end of the mounting cut 121 should be connected to the mounting hole 122. In use, the operator can first insert the limiting plate 31 into the mounting plate 12 along the mounting hole 122, and then drive the bearing 2 to slide along the length direction of the mounting cut 121 so that the connecting column 32 enters the interior of the mounting cut 121.

[0035] Furthermore, to prevent abnormal movement of the support seat 2 during normal use, a positioning protrusion 311 may be provided on the bottom surface of the limiting plate 31, and multiple positioning grooves 123 for accommodating the positioning protrusion 311 should be provided on the top surface of the mounting plate 12, with the multiple positioning grooves 123 arranged along the length direction of the mounting cut 121. After the support seat 2 is adjusted to a suitable position, the operator can insert the positioning protrusion 311 into the corresponding positioning groove 123, thereby restricting the movement of the support seat 2 by means of the cooperation between the positioning protrusion 311 and the positioning groove 123.

[0036] As an optional implementation of this embodiment, to prevent the positioning protrusion 311 from dislodging from the positioning groove 123 due to vibrations inside the mine, a spring 321 can be fitted onto the connecting column 32. After the assembly of the bearing seat 2 and the mounting seat is completed, the spring 321 will enter a compressed state, and the bottom end of the spring 321 will abut against the top surface of the bearing column 33, while the top end of the spring 321 will abut against the bottom surface of the mounting plate 12. At this time, the elastic force generated by the spring 321 can make the bottom surface of the limiting plate 31 abut against the top surface of the mounting plate 12, thereby preventing the positioning protrusion 311 from dislodging from the positioning groove 123 and enhancing the positioning effect of the bearing seat 2.

[0037] Figure 6This is a schematic diagram of the structure of the protective component and the protective tube 5. As shown in the figure, in this embodiment, a first limiting ring 411 with an inner diameter equal to the outer diameter of the protective tube 5 should be provided on the inner wall of the connecting ring 41, and a second limiting ring 54 with an outer diameter greater than the inner diameter of the first limiting ring 411 should be provided at the top of the protective tube 5. When the protective tube 5 is installed inside the protective component and the connecting ring 41 is assembled with the bearing seat 2, the second limiting ring 54 will be located above the first limiting ring 411. At this time, the cooperation of the first limiting ring 411, the second limiting ring 54 and the bottom surface of the bearing seat 2 can prevent the protective tube 5 from moving axially during rotation, thereby preventing the protective tube 5 from detaching from the protective component.

[0038] Optionally, to facilitate the rotation of the protective tube 5, the protective component in this embodiment may also include an operating head 52. For example... Figure 2 As shown, the operating head 52 should be located below the support ring 42. A guide channel is provided between the operating head 52 and the protective tube 5, and the top surface of the operating head 52 is connected to the bottom end face of the protective tube 5 through the connecting rod 53. When it is necessary to clean the protective tube 5, the operator can apply a rotational torque to the operating head 52, thereby smoothly driving the protective tube 5 to rotate. In addition, since there is a guide channel between the operating head 52 and the protective tube 5, the dust adhering to the inner wall of the protective tube 5 can also be smoothly removed from the protective tube 5 through the guide channel, thereby improving the cleaning effect of this device and preventing dust accumulation inside the protective tube 5.

[0039] As another optional implementation of this embodiment, in order to facilitate the removal of adhering dust from the inner wall of the protective tube 5, the top of the operating head 52 may also be provided with a guide cone surface 521 with the tip pointing upward, thereby guiding the dust with the help of the guide cone surface 521 and improving the efficiency of dust leaving the protective tube 5.

[0040] The effects of the above solution are explained below:

[0041] This embodiment provides an intrinsically safe mine smoke sensor. The connector and mounting base enhance installation convenience and allow for flexible adjustment of the support position, facilitating subsequent maintenance. Furthermore, the device periodically rotates the protective tube, causing a cleaning roller brush to clean the outer wall of the tube, removing dust and ensuring optimal performance.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An intrinsically safe mine smoke sensor, characterized in that, include: The mounting base includes a mounting plate (11) and a mounting plate (12). The top surface of the mounting plate (12) is connected to the bottom surface of the positioning plate (11) via a connecting plate (13), and a mounting notch (121) is provided on the mounting plate (12). The top surface of the mounting plate (2) is provided with a splice connector, and a wiring port (331) is provided on the side wall of the splice connector. The top end of the splice connector can be adjusted to be inserted into the mounting notch (121). The protective component includes a connecting ring (41) and a support ring (4). 2) The top surface of the support ring (42) is connected to the bottom surface of the connecting ring (41) through the cleaning roller brush (43), and the connecting ring (41) is detachably connected to the carrier (2); the protective assembly is also provided with a rotatable protective tube (5), and multiple air inlets (51) are provided on the protective tube (5), and the outer wall of the protective tube (5) is in contact with the cleaning roller brush (43); the sensor body (6) is set inside the protective tube (5), the top of the sensor body (6) is connected to the bottom surface of the carrier (2), and the sensor body (6) is electrically connected to the wiring port (331).

2. The intrinsically safe mine smoke sensor according to claim 1, characterized in that: The protection assembly also includes an operating head (52), which is located below the support ring (42). A flow channel is provided between the operating head (52) and the protection tube (5), and the top surface of the operating head (52) is connected to the bottom end face of the protection tube (5) through a connecting rod (53).

3. The intrinsically safe mine smoke sensor according to claim 1, characterized in that: The inner wall of the connecting ring (41) is provided with a first limiting ring (411), and the inner diameter of the first limiting ring (411) is equal to the outer diameter of the protective tube (5); the top end of the protective tube (5) is provided with a second limiting ring (54), the second limiting ring (54) is located above the first limiting ring (411), and the outer diameter of the second limiting ring (54) is greater than the inner diameter of the first limiting ring (411).

4. The intrinsically safe mine smoke sensor according to claim 2, characterized in that: The top of the operating head (52) is provided with a guide cone surface (521) with the tip pointing upward.

5. The intrinsically safe mine smoke sensor according to claim 1, characterized in that: The splice includes a limiting plate (31), a connecting post (32), and a bearing post (33) connected sequentially from top to bottom. The connecting post (32) is placed inside the mounting cut (121). The limiting plate (31) is located above the mounting plate (12), and the outer diameter of the limiting plate (31) is larger than the width of the mounting cut (121). The wiring port (331) is set on the side wall of the bearing post (33), and the outer diameter of the bearing post (33) is larger than the outer diameter of the connecting post (32).

6. The intrinsically safe mine smoke sensor according to claim 5, characterized in that: The mounting plate (12) is provided with mounting holes (122), one end of the mounting notch (121) is connected to the mounting holes (122), and the inner diameter of the mounting holes (122) is larger than the outer diameter of the limiting plate (31).

7. The intrinsically safe mine smoke sensor according to claim 5, characterized in that: The bottom surface of the limiting plate (31) is provided with a positioning protrusion (311), and the top surface of the mounting plate (12) is provided with a plurality of positioning grooves (123) for accommodating the positioning protrusion (311), and the plurality of positioning grooves (123) are arranged along the length direction of the mounting cut (121).

8. The intrinsically safe mine smoke sensor according to claim 7, characterized in that: A spring (321) is fitted on the connecting column (32). The bottom end of the spring (321) abuts against the top surface of the bearing column (33), and the top end of the spring (321) abuts against the bottom surface of the mounting plate (12).

Images