Inner partition device with iris mechanical structure

Abstract

The utility model discloses an internal zoning device with an iris mechanical structure, which relates to the technical field of internal zoning devices and comprises a zoning device lower shell. A cylindrical pipe communicated with a sampling pipeline is fixedly mounted on the zoning device lower shell, a driving shaft is mounted on the zoning device lower shell in a sliding manner, a left-handed blade and a right-handed blade are rotationally mounted on the driving shaft, sliding openings are formed in one end of the left-handed blade and one end of the right-handed blade respectively, and the other end of the left-handed blade and one end of the right-handed blade are communicated with the cylindrical pipe. A sliding opening is formed in the partition device lower shell, the driving shaft is installed in the sliding opening in a sliding mode, connecting rods are fixedly connected to the left rotating blade and the right rotating blade, the connecting rods are hinged to the partition device lower shell, and a driving assembly used for driving the driving shaft to move is installed on the partition device lower shell. The technical problems that an existing structure for controlling the opening and closing function of a pipeline is complex and high in production cost, and due to the fact that existing partition device shells are mostly connected through self-tapping screws, sealing is not tight, the alarm time is prolonged, and the using effect is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of internal partitioners, in particular to an internal partitioner with an iris mechanical structure. Background Art

[0002] Among the existing fire-fighting equipment, smoke detection alarm is the most commonly used detection method. After the detector alarms, the fire broadcast can be activated to evacuate personnel, the fire partition rolling shutter door can be lowered to prevent the spread of fire, and the fire pump can be started. Effective and accurate detection is a very important part of the entire fire-fighting process. The aspirating smoke fire detector adopts active aspiration to extend the sampling tube into each protected space. By using openings, the air in each space is sampled and the air is actively sucked into the detection cavity of the aspirating smoke fire detector for smoke particle identification, thereby realizing fire alarm judgment. For the aspirating smoke fire detector with multiple pipelines and one detection cavity, a partitioner is used to realize orderly opening and closing of each pipeline, which can quickly identify the pipeline where the fire occurs, locate the fire area, and investigate the source of the fire, thereby reducing the loss of life and property.

[0003] However, the partitions in the existing aspirating smoke fire detectors are complex in structure and have high production costs for realizing the opening and closing functions of the control pipelines. In addition, the existing partition shells are mostly connected by self-tapping screws, which may cause poor sealing and prolong the alarm time, thus affecting the use effect. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an inner partitioner with an iris mechanical structure, which solves the technical problems raised in the above background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: an internal partitioner with an iris mechanical structure, comprising a partitioner lower shell; a cylindrical tube connected to a sampling pipeline is fixedly mounted on the partitioner lower shell, a drive shaft is slidably mounted on the partitioner lower shell, a left-handed blade and a right-handed blade are rotatably mounted on the drive shaft, a sliding opening is provided at one end of the left-handed blade and the right-handed blade, the drive shaft is slidably mounted in the sliding opening, a connecting rod is fixedly connected to the left-handed blade and the right-handed blade, the connecting rod is hinged to the partitioner lower shell, and a drive assembly for driving the drive shaft to move is mounted on the partitioner lower shell.

[0006] Preferably, the driving component includes an electromagnetic coil and a T-shaped iron rod. A coil frame is fixedly installed on the lower shell of the partition close to the driving shaft. A square hole is opened on the coil frame. The T-shaped iron rod is inserted into the square hole and is tightly attached to the square hole. The electromagnetic coil is wound on the coil frame, and a magnet is installed on the driving shaft.

[0007] Preferably, an electromagnetic back cover for protecting the internal structure of the partitioner is welded on the lower shell.

[0008] Preferably, a PCB board is installed on the electromagnetic back cover.

[0009] Preferably, an upper shell of the partition is welded to the lower shell of the partition, and an annular drainage groove and an ash discharge groove are provided in the upper shell of the partition and the lower shell of the partition.

[0010] Preferably, a fluororubber sealing gasket is sleeved on the cylindrical tube on the lower shell of the partitioner.

[0011] Beneficial Effects

[0012] The utility model provides an inner partitioner with an iris mechanical structure, which has the following beneficial effects:

[0013] 1. By installing a driving shaft, the sliding driving shaft can drive the left-handed blade and the right-handed blade to rotate. By opening a sliding mouth, the driving shaft can slide in the sliding mouth. By hingedly connecting a connecting rod, when the driving shaft slides, the hinge rod can be driven to rotate, thereby driving the left-handed blade and the right-handed blade to rotate. This structure is simple and can realize flexible control of the opening and closing of the pipe mouth, thereby realizing control of the entry of the measured gas;

[0014] 2. By installing a PCB board, applying positive and negative voltages to the PCB board can control the positive and negative current passing through the electromagnetic coil. By installing an electromagnetic coil, a magnetic field can be generated after the electromagnetic coil is energized. By installing a magnet, the magnetic field generated by the electromagnetic coil can act on the magnet, which can drive the drive shaft to rotate in different directions. The magnet is cast with a customized mold, and the magnetic pole direction is magnetized by a special process. The magnetic force is 10~15% higher than that of ordinary non-directional magnets, thereby reducing the volume of the energized coil and optimizing the overall size of the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model;

[0016] Figure 2 It is a top view of the blades in the utility model.

[0017] In the figure: 1. Partitioner upper shell; 2. Partitioner lower shell; 3. Left-handed blades; 4. Right-handed blades; 5. Magnet; 6. Coil frame; 7. T-shaped iron rod; 8. Electromagnetic coil; 9. Electromagnetic back cover; 10. PCB board; 11. Fluororubber sealing gasket; 12. Drive shaft; 13. Slide; 14. Connecting rod. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, wherein the directional nouns such as "upper", "lower", etc. mentioned in this document are as follows: Figure 1 The orientation is used as a reference.

[0019] See also Figure 1-2 The utility model provides a technical solution: an internal partitioner with an iris mechanical structure, comprising a partitioner lower shell 2; a cylindrical tube connected to a sampling pipeline is fixedly installed on the partitioner lower shell 2, a driving shaft 12 is slidably installed on the partitioner lower shell 2, a left-handed blade 3 and a right-handed blade 4 are rotatably installed on the driving shaft 12, a sliding opening 13 is opened at one end of the left-handed blade 3 and the right-handed blade 4, the driving shaft 12 is slidably installed in the sliding opening 13, a connecting rod 14 is fixedly connected to the left-handed blade 3 and the right-handed blade 4, the connecting rod 14 is hinged on the partitioner lower shell 2, and a driving component for driving the driving shaft 12 to move is installed on the partitioner lower shell 2.

[0020] In this embodiment, by installing a cylindrical tube, when it is necessary to sample the gas, the gas can enter the cylindrical tube through the sampling pipeline to facilitate the detection of the gas. By installing a driving shaft 12, the sliding driving shaft 12 can drive the left-handed blade 3 and the right-handed blade 4 to rotate. The blades are completed by a uniquely designed high-precision continuous stamping die to ensure that the flatness of the 0.1mm thick blade reaches 0.01mm, minimizing the friction. The material is imported SEC material thin plate, which has stable chemical properties and good rust and corrosion resistance. The product consistency after mass production is good, and quality control is easy to control; by opening a sliding mouth 13, the driving shaft 12 can slide in the sliding mouth 13, and by being hinged with a connecting rod 14, when the driving shaft 12 slides, it can drive the connecting rod 14 to rotate, thereby driving the left-handed blade 3 and the right-handed blade 4 to rotate, and when the driving shaft 12 slides downward, the left-handed blade 3 and right-handed blade 4 rotate in opposite directions, so that the cylindrical tube mouth can be opened. When the drive shaft 12 slides upward, the left-handed blade 3 and the right-handed blade 4 rotate in opposite directions, so that the cylindrical tube mouth can be closed. This structure is simple and can flexibly control the opening and closing of the tube mouth, thereby controlling the entry of the measured gas. The partition shell material uses a unique modified POM. Graphite, molybdenum disulfide, lubricating oil and low molecular weight PE are added to POM to improve its lubrication performance, reduce the original friction factor by 60%, and improve wear resistance by 1 to 2 times, which can effectively improve the service life of the partition in harsh environments; the partition shell seal adopts the domestic advanced ultrasonic welding process, by using high-frequency vibration waves to transmit to the surfaces of two objects to be welded, under pressure, the surfaces of the two objects are rubbed against each other to form a fusion between the molecular layers, which can prevent the alarm time from being extended due to poor sealing.

[0021] As an embodiment of the utility model, the driving assembly includes an electromagnetic coil 8 and a T-shaped iron rod 7. A coil frame 6 is fixedly installed on the lower shell 2 of the partition close to the driving shaft 12. A square hole is opened on the coil frame 6. The T-shaped iron rod 7 is inserted into the square hole and is tightly attached to the square hole. The electromagnetic coil 8 is wound on the coil frame 6, and a magnet 5 is installed on the driving shaft 12.

[0022] In this embodiment, by installing an electromagnetic coil 8, a magnetic field can be generated after the electromagnetic coil 8 is energized. By installing a magnet 5, the magnetic field generated by the electromagnetic coil 8 can act on the magnet 5, which can drive the drive shaft 12 to rotate in different directions. The magnet 5 is cast using a customized mold, and the magnetic pole direction is magnetized using a special process. The magnetic force is 10~15% higher than that of an ordinary non-directionally magnetized magnet 5, thereby reducing the volume of the energized coil and optimizing the overall size of the partitioner.

[0023] As an embodiment of the utility model, an electromagnetic back cover 9 for protecting the internal structure thereof is welded on the partition lower shell 2 .

[0024] As an embodiment of the present utility model, a PCB board 10 is installed on the electromagnetic back cover 9 .

[0025] In this embodiment, by installing the PCB board 10, the positive and negative voltages applied to the PCB board 10 can control the positive and negative current passing through the electromagnetic coil 8, so that the electromagnetic coil 8 can be controlled to generate different magnetic fields.

[0026] As an embodiment of the utility model, the partition upper shell 1 is welded to the partition lower shell 2, and an annular drainage groove and ash discharge groove are provided in the partition upper shell 1 and the partition lower shell 2.

[0027] In this embodiment, the upper shell 1 of the partitioner is connected to the bottom shell of the partitioner by welding, which effectively enhances the sealing of the partitioner shell, prevents the alarm time from being prolonged due to poor sealing, and greatly improves the use effect. By providing an annular drainage groove, when water enters the shell, the water can be discharged through the annular drainage groove, which can effectively prevent water from entering the partitioner and affecting the use of the partitioner. By providing an ash discharge groove, dust in the upper shell and the outer shell can be discharged to prevent dust from entering the partitioner and affecting the use effect of the partitioner.

[0028] As an embodiment of the utility model, a fluororubber sealing gasket 11 is sleeved on the cylindrical tube on the lower shell 2 of the partitioner.

[0029] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0030] The working principle and use process of the utility model are as follows: when in use, the partitioner is installed in the smoke fire detector, and a voltage is applied to the PCB board 10, so that the electromagnetic coil 8 generates a magnetic field to act on the magnet 5 after being energized, thereby driving the driving shaft 12 to slide, and the driving shaft 12 is controlled to slide upward or downward by applying different positive and negative voltages to the PCB, thereby driving the left-handed blade 3 and the right-handed blade 4 to rotate in different directions, thereby controlling the opening and closing of the cylindrical tube mouth, so that the opening and closing of the cylindrical tube mouth can be flexibly controlled to control the entry of the detected gas.

[0031] Although the 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. An internal partitioner with an iris mechanical structure, characterized in that: The invention comprises a partition lower shell (2); a cylindrical tube connected to a sampling pipeline is fixedly mounted on the partition lower shell (2); a driving shaft (12) is slidably mounted on the partition lower shell (2); a left-handed blade (3) and a right-handed blade (4) are rotatably mounted on the driving shaft (12); a sliding opening (13) is provided at one end of each of the left-handed blade (3) and the right-handed blade (4); the driving shaft (12) is slidably mounted in the sliding opening (13); a connecting rod (14) is fixedly connected to each of the left-handed blade (3) and the right-handed blade (4); the connecting rod (14) is hinged to the partition lower shell (2); and a driving component for driving the driving shaft (12) to move is mounted on the partition lower shell (2).

2. The inner partitioner with iris mechanical structure according to claim 1, characterized in that: The driving component comprises an electromagnetic coil (8) and a T-shaped iron rod (7). A coil frame (6) is fixedly mounted on the lower shell (2) of the partitioner close to the driving shaft (12). A square hole is opened on the coil frame (6). The T-shaped iron rod (7) is inserted into the square hole and is tightly attached to the square hole. The electromagnetic coil (8) is wound on the coil frame (6). A magnet (5) is mounted on the driving shaft (12).

3. The inner partitioner with iris mechanical structure according to claim 1, characterized in that: An electromagnetic back cover (9) for protecting the internal structure of the partitioner is welded on the partitioner lower shell (2).

4. The inner partitioner with iris mechanical structure according to claim 3, characterized in that: A PCB board (10) is installed on the electromagnetic back cover (9).

5. The inner partitioner with iris mechanical structure according to claim 1, characterized in that: The partitioner upper shell (1) is welded to the partitioner lower shell (2), and an annular drainage groove and an ash discharge groove are provided in the partitioner upper shell (1) and the partitioner lower shell (2).

6. The inner partitioner with iris mechanical structure according to claim 1, characterized in that: A fluororubber sealing gasket (11) is sleeved on the cylindrical tube on the partition lower shell (2).

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