Respirator pressure gauge alarm realized by utilizing photoelectric principle and pointer position

Abstract

The utility model discloses a respirator pressure gauge alarm realized by using a photoelectric principle and a pointer position, which relates to the technical field of fire-fighting equipment and comprises a pressure gauge alarm main body and a rotating ring rotatably arranged on the upper side of the pressure gauge alarm main body through a sealing bearing. A glass cover plate is fixedly arranged on the inner side of the rotating ring, a transmission mechanism for driving the rotating ring to rotate is arranged on the upper side of the pressure gauge alarm body, a through groove is formed in the side wall of the pressure gauge alarm body, a rubber strip is inserted into the through groove, one side of the rubber strip abuts against the inner wall of the glass cover plate, and the other side of the rubber strip abuts against the inner wall of the glass cover plate. A sealing gasket is fixedly arranged at one end of the outer side of the rubber strip, and limiting mechanisms for limiting movement of the sealing gasket are arranged on the outer wall of the pressure gauge alarm body and located on the two sides of the sealing gasket. According to the utility model, fog on the inner side of the glass cover plate of the pressure gauge alarm can be cleaned conveniently, and the value of the pressure gauge alarm can be observed conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, in particular to a respirator pressure gauge alarm realized by utilizing photoelectric principle and pointer position. Background Art

[0002] At present, there are mainly two types of respirator pressure gauge alarms: one is composed of a pointer pressure gauge and an alarm whistle. This method has a simple structure and low cost, but the cylinder pressure value cannot be output in the form of an electrical signal, which is not convenient for subsequent processing and function expansion. The alarm function is achieved by using the cylinder gas to impact the alarm whistle when the cylinder pressure is insufficient, thereby greatly shortening the evacuation time of rescue personnel and reducing the safety of the product.

[0003] Among them, announcement number CN204214595U discloses a respirator pressure gauge alarm realized by photoelectric principle and pointer position, including a single-chip control unit and a pressure gauge sensor connected to the single-chip control unit, a motion sensor, a function button, a switch button, a battery reverse connection protection circuit, a DC-DC boost circuit, a pressure head-up display transmitting circuit, an electronic sound and light alarm circuit, and an LED indication circuit. The pressure sensor is a photoelectric full-range pressure gauge sensor positioned by a pointer, including a dial, a pointer, and an infrared transmitting tube array coaxial with the dial installed on one side of the dial, an infrared transmitting tube fixing bracket, and an infrared receiving tube fixing bracket coaxial with the dial installed on the other side of the dial, and an infrared receiving tube array. There are still defects in this technical solution:

[0004] In this technical solution, the dial needs to be put into water during use, and fog will be generated inside the dial due to the temperature difference. Since the fog adheres to the glass cover of the dial and cannot be cleaned, it affects the user's observation of the values ​​on the dial. Utility Model Content

[0005] In view of the problems existing in the existing respirator pressure gauge alarm realized by using the photoelectric principle and the pointer position, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a respirator pressure gauge alarm realized by utilizing the photoelectric principle and the pointer position, so as to solve the problem that in the respirator pressure gauge alarm realized by utilizing the photoelectric principle and the pointer position in the prior art, the dial needs to be put into water during use, and fog will be generated inside the dial due to the temperature difference, and the fog adheres to the glass cover of the dial and cannot be cleaned, thus affecting the user's observation of the value on the dial.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A respirator pressure gauge alarm realized by photoelectric principle and pointer position, comprising a pressure gauge alarm body and a rotating ring, wherein the rotating ring is rotatably arranged on the upper side of the pressure gauge alarm body through a sealed bearing, a glass cover is fixedly arranged on the inner side of the rotating ring, a transmission mechanism for driving the rotating ring to rotate is arranged on the upper side of the pressure gauge alarm body, a through groove is opened on the side wall of the pressure gauge alarm body, a rubber strip is inserted into the interior of the through groove, one side of the rubber strip is in conflict with the inner wall of the glass cover, a sealing gasket is fixedly arranged on the outer end of the rubber strip, and a limiting mechanism for limiting the movement of the sealing gasket is arranged on the outer wall of the pressure gauge alarm body and on both sides of the sealing gasket.

[0009] Preferably, the transmission mechanism includes a gear and a gear ring, the gear ring is fixedly sleeved on the outer wall of the rotating ring, a rotating rod is rotatably provided on the upper side of the pressure gauge alarm body, the gear is fixedly sleeved on the rod wall of the rotating rod, the gear is meshingly connected with the gear ring, the outer movable sleeve of the rotating rod is provided with a fixing ring, the lower side of the fixing ring is fixedly connected to the upper surface of the pressure gauge alarm body, the rod wall movable sleeve of the rotating rod is provided with a clockwork spring, and the two ends of the clockwork spring are respectively fixedly connected to the corresponding rotating rod and the inner wall of the fixing ring.

[0010] Preferably, the limiting mechanism includes a block and an insertion rod, a fixed shell is fixedly provided on the outer wall of the pressure gauge alarm body and on both sides of the sealing gasket, the block is slidably arranged inside the fixed shell, the insertion rod is fixedly arranged on one side of the block, one end of the insertion rod extends to the outside of the fixed shell, and holes are provided on both sides of the sealing gasket, the outer ends of the two insertion rods are respectively connected to the corresponding insertion holes, and a compression spring is fixedly provided on the side of the block away from the insertion rod, and the two ends of the compression spring are respectively fixedly connected to the side of the corresponding block shell away from the fixed shell and the inner wall of the fixed shell.

[0011] Preferably, the longitudinal sections of the stopper and the fixing shell are both rectangular.

[0012] Preferably, a rotating wheel is fixedly sleeved on the upper end of the rotating rod.

[0013] Preferably, the sealing gasket is a rubber gasket.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. The utility model rotates the wheel to make the rotating rod drive the gear to rotate, and the gear drives the gear ring to rotate, so that the rotating ring rotates. When the rotating ring is loosened, the spring force drives the rotating rod to rotate in the opposite direction to reset, so that the gear is reversed, and then the gear ring is reversed, so that the rotating ring is reversed, and the glass cover is rotated relative to the rubber strip. The rubber strip automatically scrapes off the mist on the inside of the glass cover, making it convenient to observe the value on the dial of the pressure gauge alarm body.

[0016] 2. The utility model releases the limit on the sealing gasket by pulling out the rods on both sides from the corresponding insertion holes, and then pulls the rubber strip out from the inside of the pressure gauge alarm body, so that the worn rubber strip can be disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of a respirator pressure gauge alarm realized by using the photoelectric principle and the position of the pointer proposed by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0020] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0021] Description of reference numerals:

[0022] 1. Pressure gauge alarm body; 2. Rotating ring; 3. Glass cover; 4. Rubber strip; 5. Gear ring; 6. Rotating rod; 7. Gear; 8. Rotating wheel; 9. Fixed ring; 10. Spring; 11. Sealing gasket; 12. Fixed shell; 13. Block; 14. Insert rod; 15. Compression spring. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model embodiment discloses a respirator pressure gauge alarm realized by utilizing the photoelectric principle and the position of a pointer.

[0025] Embodiment 1

[0026] Reference Figure 1-3A respirator pressure gauge alarm realized by photoelectric principle and pointer position includes a pressure gauge alarm body 1 and a rotating ring 2. The rotating ring 2 is rotatably arranged on the upper side of the pressure gauge alarm body 1 through a sealed bearing. A glass cover plate 3 is fixedly arranged on the inner side of the rotating ring 2. A through groove is opened on the side wall of the pressure gauge alarm body 1. A rubber strip 4 is inserted into the inside of the through groove. One side of the rubber strip 4 is in conflict with the inner wall of the glass cover plate 3. A sealing gasket 11 is fixedly arranged on one end of the outer side of the rubber strip 4. The sealing gasket 11 is a rubber gasket, so that the sealing gasket 11 and the pressure gauge alarm body 1 fit more closely.

[0027] Embodiment 2

[0028] Reference Figure 1-3 A transmission mechanism for driving the rotating ring 2 to rotate is provided on the upper side of the pressure gauge alarm body 1, and the transmission mechanism includes a gear 7 and a gear ring 5. The gear ring 5 is fixedly sleeved on the outer wall of the rotating ring 2. A rotating rod 6 is rotatably provided on the upper side of the pressure gauge alarm body 1. The gear 7 is fixedly sleeved on the rod wall of the rotating rod 6. The gear 7 is meshed with the gear ring 5. A fixed ring 9 is provided on the outer movable sleeve of the rotating rod 6. The lower side of the fixed ring 9 is fixedly connected to the upper surface of the pressure gauge alarm body 1. A spring 10 is provided on the rod wall of the rotating rod 6. The two ends of the spring 10 are respectively fixedly connected to the corresponding rotating rod 6 and the inner wall of the fixed ring 9. The upper end of the rotating rod 6 is fixedly sleeved with a rotating wheel 8 to facilitate the rotation of the rotating rod 6.

[0029] Embodiment 3

[0030] Reference Figure 1-3 , a limiting mechanism for limiting the movement of the sealing gasket 11 is arranged on the outer wall of the pressure gauge alarm body 1 and on both sides of the sealing gasket 11, the limiting mechanism includes a stopper 13 and a plug rod 14, a fixed shell 12 is fixedly arranged on the outer wall of the pressure gauge alarm body 1 and on both sides of the sealing gasket 11, the stopper 13 is slidably arranged inside the fixed shell 12, the plug rod 14 is fixedly arranged on one side of the stopper 13, one end of the plug rod 14 extends to the outside of the fixed shell 12, and plug holes are opened on both sides of the sealing gasket 11, and the outer ends of the two plug rods 14 are respectively plugged into the corresponding plug holes, and a compression spring 15 is fixedly arranged on the side of the stopper 13 away from the plug rod 14, and the two ends of the compression spring 15 are respectively fixedly connected to the side of the corresponding stopper shell away from the fixed shell 12 and the inner wall of the fixed shell 12, and the longitudinal sections of the stopper 13 and the fixed shell 12 are both rectangular, so that the stopper 13 cannot rotate, that is, it can slide stably.

[0031] When the utility model is in use, the rotating wheel 8 is rotated to make the rotating rod 6 drive the gear 7 to rotate, and the gear 7 drives the gear ring 5 to rotate, so that the rotating ring 2 is rotated. When the rotating ring 2 is loosened, the elastic force of the clockwork spring 10 drives the rotating rod 6 to rotate in the opposite direction and reset, so that the gear 7 is reversed, and then the gear ring 5 is reversed, so that the rotating ring 2 is reversed, and the glass cover plate 3 is rotated relative to the rubber strip 4. The rubber strip 4 automatically scrapes off the mist on the inner side of the glass cover plate 3, so that it is convenient to observe the value on the dial of the pressure gauge alarm body 1. When the rubber strip 4 is worn, the insertion rods 14 on both sides are pulled out from the corresponding insertion holes, so that the limit of the sealing gasket 11 is released, and then the rubber strip 4 is pulled out from the inside of the pressure gauge alarm body 1, so that the worn rubber strip 4 can be disassembled and replaced.

[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A respirator pressure gauge alarm realized by using photoelectric principle and pointer position, comprising a pressure gauge alarm body (1) and a rotating ring (2), characterized in that: The rotating ring (2) is rotatably arranged on the upper side of the pressure gauge alarm body (1) through a sealing bearing, a glass cover plate (3) is fixedly arranged on the inner side of the rotating ring (2), and a transmission mechanism for driving the rotating ring (2) to rotate is arranged on the upper side of the pressure gauge alarm body (1), a through groove is opened on the side wall of the pressure gauge alarm body (1), a rubber strip (4) is inserted into the interior of the through groove, one side of the rubber strip (4) is in contact with the inner wall of the glass cover plate (3), a sealing gasket (11) is fixedly arranged on the outer end of the rubber strip (4), and a limiting mechanism for limiting the movement of the sealing gasket (11) is arranged on the outer wall of the pressure gauge alarm body (1) and on both sides of the sealing gasket (11).

2. The respirator pressure gauge alarm realized by using the photoelectric principle and the position of the pointer according to claim 1 is characterized in that: The transmission mechanism comprises a gear (7) and a gear ring (5), wherein the gear ring (5) is fixedly sleeved on the outer wall of the rotating ring (2), a rotating rod (6) is rotatably arranged on the upper side of the pressure gauge alarm body (1), the gear (7) is fixedly sleeved on the rod wall of the rotating rod (6), the gear (7) and the gear ring (5) are meshingly connected, a fixing ring (9) is movably sleeved on the outer side of the rotating rod (6), the lower side of the fixing ring (9) is fixedly connected to the upper surface of the pressure gauge alarm body (1), a spring (10) is movably sleeved on the rod wall of the rotating rod (6), and the two ends of the spring (10) are respectively fixedly connected to the corresponding rotating rod (6) and the inner wall of the fixing ring (9).

3. The respirator pressure gauge alarm realized by using the photoelectric principle and the position of the pointer according to claim 1, characterized in that: The limiting mechanism comprises a stopper (13) and an insertion rod (14); a fixed shell (12) is fixedly arranged on the outer wall of the pressure gauge alarm body (1) and on both sides of the sealing gasket (11); the stopper (13) is slidably arranged inside the fixed shell (12); the insertion rod (14) is fixedly arranged on one side of the stopper (13); one end of the insertion rod (14) extends to the outside of the fixed shell (12); insertion holes are provided on both sides of the sealing gasket (11); the outer ends of the two insertion rods (14) are respectively plugged into the corresponding insertion holes; a compression spring (15) is fixedly arranged on the side of the stopper (13) away from the insertion rod (14); the two ends of the compression spring (15) are respectively fixedly connected to the side of the corresponding stopper shell away from the fixed shell (12) and the inner wall of the fixed shell (12).

4. The respirator pressure gauge alarm realized by using the photoelectric principle and the position of the pointer according to claim 3 is characterized in that: The longitudinal sections of the stopper (13) and the fixed shell (12) are both rectangular.

5. The respirator pressure gauge alarm realized by using the photoelectric principle and the position of the pointer according to claim 2, characterized in that: A rotating wheel (8) is fixedly sleeved on the upper end of the rotating rod (6).

6. The respirator pressure gauge alarm realized by using the photoelectric principle and the position of the pointer according to claim 1, characterized in that: The sealing pad (11) is a rubber pad.

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