Laser methane inlet dustproof filter screen assembly arranged in wristwatch

Abstract

The utility model discloses a laser methane inlet dustproof filter screen assembly arranged in a wristwatch, which comprises a watchcase, a dedusting filter assembly arranged at the left end of the watchcase, a display screen fixed at the upper end of the watchcase, a U-shaped gas chamber arranged inside the watchcase, a battery arranged at the right end of the gas chamber, a cover plate fixed at the upper end of the gas chamber, and a gland fixed at the upper end of the battery, a circuit board is fixed to the upper end of the gland, a supporting plate is fixed to the lower end of the air chamber, a wireless charging coil fixedly connected with the meter shell is arranged at the lower end of the supporting plate, a buzzer is fixed to the inner wall of the meter shell, the dust removal filtering assembly comprises a sintering net, a mounting groove for inserting the sintering net is formed in the left end of the meter shell, and a buckle is slidably connected to the right end of the mounting groove; a baffle fixedly connected with the watchcase is arranged at the right end of the buckle, a tension spring is fixed to the lower end of the baffle, sliding grooves are symmetrically formed in the front end and the rear end of the buckle, filtering is conducted through a sintering net, dust in air can be filtered out easily, and the dust is prevented from being accumulated in the watchcase.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal and filtration, in particular to a laser methane air intake dustproof filter assembly placed in a wristwatch. Background Art

[0002] Mine gas is a general term for toxic and harmful gases mainly composed of methane underground, sometimes referred to as methane alone. Gas is lighter than air, easy to diffuse, and has strong permeability. It is easy to pass through the rock layer from the adjacent layer and be released from the goaf. The gas itself is non-toxic, but it cannot be breathed by people. When the gas concentration in the air in the mine exceeds 50%, it can cause people to suffocate and die due to lack of oxygen. Gas can burn or explode. Gas explosion is one of the main disasters in coal mines. When the detection device detects, the air enters the gas chamber through the filter for detection, and then obtains accurate data.

[0003] The existing detection device may encounter the following situations during the detection process:

[0004] 1. The air passes through the filter to filter the dust in the air. After the filter has filtered the dust in the air for a long time, the dust will accumulate on the filter. If it is not cleaned in time, it will affect the air entering the air chamber, thereby affecting the accuracy of the device's detection data.

[0005] 2. After the filter reaches the end of its service life, it needs to be replaced. When replacing the filter in the existing detection device, the entire device needs to be disassembled, the steps are cumbersome, and the filter cannot be replaced. Utility Model Content

[0006] The purpose of the utility model is to provide a laser methane air intake dust filter assembly placed in a wristwatch, which solves the problems in the above-mentioned prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a laser methane air intake dust filter assembly placed in a watch, comprising a watch case, a dust removal filter assembly is provided at the left end of the watch case, a display screen is fixed at the upper end of the watch case, a U-shaped air chamber is provided inside the watch case, a battery is provided at the right end of the air chamber, a cover plate is fixed at the upper end of the air chamber, a pressure cap is fixed at the upper end of the battery, a circuit board is fixed at the upper end of the pressure cap, a support plate is fixed at the lower end of the air chamber, a wireless charging coil fixedly connected to the watch case is provided at the lower end of the support plate, and a buzzer is fixed on the inner wall of the watch case;

[0008] The dust removal and filtering assembly includes a sintered mesh, a mounting groove for inserting the sintered mesh is opened at the left end of the watch case, a buckle is slidably connected to the right end of the mounting groove, a baffle fixedly connected to the watch case is provided at the right end of the buckle, a tensioning spring is fixed to the lower end of the baffle, sliding grooves are symmetrically opened at the front and rear ends of the buckle, limiting columns are respectively slidably connected in the sliding grooves, and a limiting groove corresponding to the limiting column is opened on the mounting groove.

[0009] Preferably, one end of the tension spring is fixedly connected to the baffle, and the other end of the tension spring is fixedly connected to the buckle.

[0010] Preferably, a notch corresponding to the buckle is provided at the right end of the sintered mesh, the upper part of the buckle is made of elastic material, and the lower part of the buckle is made of hard material.

[0011] Preferably, the limiting column comprises a sliding seat, a cavity is provided at the upper end of the sliding seat, an adjusting spring is fixed in the cavity, a fixing column is provided at the upper end of the adjusting spring, and the fixing column is located inside the adjusting spring.

[0012] Preferably, the limiting groove comprises a first sliding groove, a second sliding groove and a third sliding groove, and the first sliding groove, the second sliding groove and the third sliding groove form a closed isosceles trapezoid.

[0013] Preferably, the depth of the second slide groove is greater than the depth of the first slide groove and less than the depth of the third slide groove, one end of the third slide groove is connected to the second slide groove and has a depth greater than the depth of the second slide groove, the other end of the third slide groove is connected to the first slide groove and has a depth less than the depth of the first slide groove, and the third slide groove is a groove with decreasing depth.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. Filtering through the sintered mesh is helpful to filter out the dust in the air and prevent the dust from accumulating inside the case, ensuring the accuracy of the data detected by the device. The buzzer alarms quickly to remind the user of air abnormalities so that the user can make preparations quickly.

[0016] 2. By opening a mounting groove on the case, the sintering mesh can be quickly plugged in and fixed. The buckle, limit column and limit groove work together to fix the sintering mesh. At the same time, when the sintering mesh is removed, the buckle pushes the sintering mesh out of the mounting groove, realizing the rapid replacement of the sintering mesh. The dusty sintering mesh can be replaced with a new one to ensure the accuracy of data detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is an explosion diagram of the utility model;

[0019] Figure 3 This is an overall schematic diagram of the dust removal and filtering assembly of the utility model;

[0020] Figure 4 It is a partially enlarged schematic diagram of the dust removal and filtering assembly of the utility model;

[0021] Figure 5 It is a partial cross-sectional schematic diagram of the limit column of the utility model;

[0022] Figure 6 It is a partially enlarged schematic diagram of the dust removal and filtering component of the utility model.

[0023] Explanations in the figure: 1. Case; 2. Dust removal and filtering assembly; 3. Display screen; 101. Air chamber; 102. Cover plate; 103. Battery; 104. Pressure cover; 105. Circuit board; 106. Support plate; 107. Wireless charging coil; 108. Buzzer; 201. Sintered mesh; 202. Mounting slot; 203. Buckle; 204. Baffle; 205. Tension spring; 206. Sliding slot; 207. Limiting column; 208. Limiting slot; 2071. Sliding seat; 2072. Adjusting spring; 2073. Fixed column; 2081. First slide slot; 2082. Second slide slot; 2083. Third slide slot. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 , Figure 2 and Figure 3 A laser methane air intake dust filter assembly placed in a wristwatch comprises a watch case 1, a dust removal filter assembly 2 is provided at the left end of the watch case 1, a display screen 3 is fixed at the upper end of the watch case 1, lugs are provided at the front and rear ends of the watch case 1, a strap is fixed to the watch case 1 through the lugs, and the strap is used to wear the device on the wrist of the user, the display screen 3 displays data, and it is convenient for the user to view the data information clearly and cleanly, a U-shaped air chamber 101 is provided inside the watch case 1, a laser and a detector are provided at two ports of the air chamber 101, respectively, for detecting the gas entering the air chamber 101, and the detection of the gas is realized, a static reflector and a dynamic reflector are provided at two corners in the air chamber 101, respectively, the dynamic reflector is used to adjust the laser emitted by the laser, so that the laser can be normally reflected on the detector to ensure the accuracy of the detected value, a battery 103 is provided at the right end of the air chamber 101, and the air chamber 1 01 is fixed with a cover plate 102 at the upper end, and a pressure cover 104 is fixed with the upper end of the battery 103, and a circuit board 105 is fixed with the upper end of the pressure cover 104, and the battery 103 is fixed to the right side of the air chamber 101 by the pressure cover 104, so as to prevent the battery 103 from shaking when the device is worn, and at the same time, a motor is provided at the rear end of the air chamber 101, which works when the device detects that the gas is abnormal, so that the device vibrates, and quickly reminds the user of the abnormality, and a support plate 106 is fixed with the lower end of the air chamber 101, and a wireless charging coil 107 fixedly connected to the watch case 1 is provided at the lower end of the support plate 106, and a buzzer 108 is fixed with the inner wall of the watch case 1, and the battery 103 is wirelessly charged by the wireless charging coil 107, so that the overall opening of the device is reduced, and the probability of dust entering the device is further reduced, and a buzzer alarm is sounded by the buzzer 108, so as to quickly remind the user of the abnormality of the air, so that the user can make preparations quickly.

[0028] See also Figure 3 , Figure 4 , Figure 5 and Figure 6The dust removal filter assembly 2 includes a sintered mesh 201. A mounting groove 202 for inserting the sintered mesh 201 is provided at the left end of the watch case 1. By providing the mounting groove 202 on the watch case 1, it is convenient to quickly insert the sintered mesh 201 into the mounting groove 202 to achieve the installation and fixation of the sintered mesh 201. A buckle 203 is slidably connected to the right end of the mounting groove 202. A notch corresponding to the buckle 203 is provided at the right end of the sintered mesh 201. The upper part of the buckle 203 is made of elastic material, and the lower part of the buckle 203 is made of hard material. The upper end of the buckle 203 is engaged with the notch of the sintered mesh 201 to fix the sintered mesh 201. When the buckle 203 moves downward, the baffle 204 pushes against the upper part of the buckle 203 to occur. The buckle 203 is deformed so that the buckle 203 is engaged with the notch of the sintered mesh 201 to achieve limiting. The right end of the buckle 203 is provided with a baffle 204 fixedly connected to the watch case 1, and a tension spring 205 is fixed to the lower end of the baffle 204. One end of the tension spring 205 is fixedly connected to the baffle 204, and the other end of the tension spring 205 is fixedly connected to the buckle 203. The buckle 203 and the tension spring 205 are connected by the tension spring 205. When the buckle 203 slides, the tension spring 205 will pull the buckle 203 to move to prevent the buckle 203 from being unable to be fixed to the sintered mesh 201. The front and rear ends of the buckle 203 are symmetrically provided with sliding grooves 206, and the sliding grooves 206 are respectively slidably connected to the limiting posts 207. 07 is fixed and limited to prevent the buckle 203 from moving, thereby fixing the sintered mesh 201. The limiting column 207 includes a sliding seat 2071. A cavity is provided at the upper end of the sliding seat 2071. An adjusting spring 2072 is fixed in the cavity. A fixing column 2073 is provided at the upper end of the adjusting spring 2072. The fixing column 2073 is located inside the adjusting spring 2072. The fixing column 2073 is located inside the limiting groove 208. The depth of each part of the limiting groove 208 is different. The adjusting spring 2072 is used to extend and retract the fixing column 2073 so that the groove of any depth of the limiting groove 208 is fitted to prevent the limiting column 207 from being separated from the limiting groove 208 and affecting the normal use of the device. The installation groove 202 is provided with a fixing column 2073 that is aligned with the limiting column 20 7 corresponding to the limiting groove 208, the limiting groove 208 includes a first slide groove 2081, a second slide groove 2082 and a third slide groove 2083, the first slide groove 2081, the second slide groove 2082 and the third slide groove 2083 form a closed isosceles trapezoid, by dividing the limiting groove 208 into the first slide groove 2081, the second slide groove 2082 and the third slide groove 2083, and at the same time, the depth of the second slide groove 2082 is greater than the depth of the first slide groove 2081 and less than the depth of the third slide groove 2083, one end of the third slide groove 2083 is connected to the second slide groove 2082 and has a depth greater than the depth of the second slide groove 2082, and the other end of the third slide groove 2083 is connected to the first slide groove 2081 and has a depth less than the depth of the first slide groove 2081,The third slide groove 2083 is a groove with decreasing depth, which enables the moving track of the limiting column 207 to be annular.

[0029] When the utility model is used:

[0030] First, the user wears the device on his wrist, and the user enters the designated place to work. The gas is filtered by the dust removal filter assembly 2 and enters the air chamber 101 for detection. When the gas is abnormal, the buzzer 108 alarms and reminds the user, so that the user can respond quickly.

[0031] Then, insert the sintered mesh 201 into the installation groove 202, and use the belly of the finger to press the sintered mesh 201 into the installation groove 202. During the insertion process, the sintered mesh 201 pushes the lower part of the buckle 203 to move downward, and the baffle 204 pushes the upper part of the buckle 203 to make the buckle 203 gradually engage with the notch of the sintered mesh 201 until it is fully engaged. At the same time, the limiting column 207 slides in the first slide groove 2081 of the limiting groove 208 and slides to the first slide groove 2081. In the second slide groove 2082, the tension spring 205 is stretched and tightened, pulling the buckle 203 upward. Since the depth of the second slide groove 2082 is greater than that of the first slide groove 2081, the buckle 203 is fixed. At the same time, when the limiting column 207 enters the second slide groove 2082 from the first slide groove 2081, the adjustment spring 2072 extends out to press against the fixing column 2073 and fit with the second slide groove 2082 to prevent the limiting column 207 from leaving the limiting groove 208.

[0032] Next, after the dust removal filter assembly 2 has filtered dust in the air for a long time, dust will accumulate on the dust removal filter assembly 2, affecting the air from entering the air chamber 101;

[0033] Finally, use your fingernails to press the sintered mesh 201 and penetrate it into the installation groove 202. The sintered mesh 201 continues to move downward against the lower end of the buckle 203. During the movement, the limiting column 207 enters the third slide groove 2083 of the limiting groove 208. Since the depth of the third slide groove 2083 is greater than that of the second slide groove 2082, the adjusting spring 2072 continues to extend and presses the fixing column 2073 to fit the third slide groove 2083 to prevent the limiting column 207 from escaping from the limiting groove 208. At this time, the tensioning spring 205 will pull the buckle 203 to move upward, and the limiting column 207 is in the The third slide groove 2083 moves until it moves to the connection between the third slide groove 2083 and the first slide groove 2081. Since the depth of the third slide groove 2083 is less than that of the first slide groove 2081, the limiting column 207 re-enters the first slide groove 2081. During the sliding of the limiting column 207 in the third slide groove 2083, the limiting column 207 slides in the sliding groove 206. During the process of the buckle 203 being pulled up by the tensioning spring 205, the sintered mesh 201 is ejected by the lower end of the buckle 203, thereby realizing the replacement of the sintered mesh 201.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser methane air intake dust filter assembly placed in a wristwatch, characterized in that: The watch case (1) comprises a dust filter assembly (2) at the left end of the watch case (1), a display screen (3) fixed at the upper end of the watch case (1), a U-shaped air chamber (101) provided inside the watch case (1), a battery (103) provided at the right end of the air chamber (101), a cover plate (102) fixed at the upper end of the air chamber (101), a pressure cover (104) fixed at the upper end of the battery (103), a circuit board (105) fixed at the upper end of the pressure cover (104), a support plate (106) fixed at the lower end of the air chamber (101), a wireless charging coil (107) fixedly connected to the watch case (1) provided at the lower end of the support plate (106), and a buzzer (108) fixed to the inner wall of the watch case (1); The dust removal and filtering assembly (2) comprises a sintered mesh (201); a mounting groove (202) for inserting the sintered mesh (201) is provided at the left end of the watch case (1); a buckle (203) is slidably connected to the right end of the mounting groove (202); a baffle (204) fixedly connected to the watch case (1) is provided at the right end of the buckle (203); a tension spring (205) is fixedly connected to the lower end of the baffle (204); sliding grooves (206) are symmetrically provided at the front and rear ends of the buckle (203); limiting posts (207) are slidably connected in the sliding grooves (206); and limiting grooves (208) corresponding to the limiting posts (207) are provided on the mounting groove (202).

2. A laser methane air intake dust filter assembly placed in a wristwatch according to claim 1, characterized in that: One end of the tension spring (205) is fixedly connected to the baffle (204), and the other end of the tension spring (205) is fixedly connected to the buckle (203).

3. The laser methane air intake dust filter assembly placed in a wristwatch according to claim 1, characterized in that: A notch corresponding to the buckle (203) is provided at the right end of the sintered mesh (201); the upper portion of the buckle (203) is made of elastic material, and the lower portion of the buckle (203) is made of hard material.

4. The laser methane air intake dust filter assembly placed in a wristwatch according to claim 1, characterized in that: The limiting column (207) comprises a sliding seat (2071), the upper end of the sliding seat (2071) is provided with a cavity, an adjusting spring (2072) is fixed in the cavity, the upper end of the adjusting spring (2072) is provided with a fixing column (2073), and the fixing column (2073) is located inside the adjusting spring (2072).

5. The laser methane air intake dust filter assembly placed in a wristwatch according to claim 1, characterized in that: The limiting groove (208) comprises a first sliding groove (2081), a second sliding groove (2082) and a third sliding groove (2083), and the first sliding groove (2081), the second sliding groove (2082) and the third sliding groove (2083) form a closed isosceles trapezoid.

6. The laser methane air intake dust filter assembly placed in a wristwatch according to claim 5, characterized in that: The depth of the second slide groove (2082) is greater than the depth of the first slide groove (2081) and less than the depth of the third slide groove (2083); one end of the third slide groove (2083) is connected to the second slide groove (2082) and has a depth greater than the depth of the second slide groove (2082); the other end of the third slide groove (2083) is connected to the first slide groove (2081) and has a depth less than the depth of the first slide groove (2081); the third slide groove (2083) is a groove with decreasing depth.

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