CN210894400U

CN210894400U - A wind speed detection device for fire control ventilation equipment

Info

Publication number: CN210894400U
Application number: CN202020224477.9U
Authority: CN
Inventors: 黄海花
Original assignee: Hainan Xinhong Industry Co ltd
Current assignee: Hainan Xinhong Industry Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-06-30
Anticipated expiration: 2030-02-28

Abstract

The utility model discloses a wind speed detection device for fire control ventilation equipment relates to the fire-fighting equipment field, including air pipe, the intercommunication mouth has been seted up to air pipe upside inner wall, fixedly connected with seal cylinder on air pipe's the upside outer wall, the upper end of intercommunication mouth and the inner chamber lower extreme middle part intercommunication of seal cylinder, the inner chamber middle part of seal cylinder is provided with the connecting block, the equal fixedly connected with sealing piston in upper and lower both ends of connecting block, the bonding connection has sealing rubber on sealing piston's the lateral wall. The utility model discloses an upside outer wall intercommunication at air pipe has sealed jar, is provided with sealed piston in the sealed jar, is provided with the graduation apparatus in one side of fixed plate, produces the negative pressure when air flows in the air pipe and drives sealed piston and slide in sealed jar, and then drives the indicator lever and reciprocate, and the numerical value that the indicator lever instructed on the graduation apparatus is the wind speed size in air pipe promptly, and this device simple structure cost is low, and the price/performance ratio is higher during the use.

Description

A wind speed detection device for fire control ventilation equipment

Technical Field

The utility model relates to a fire-fighting equipment field, in particular to a wind speed detection device for fire control ventilation equipment.

Background

Ventilation, also known as air exchange, is the process of feeding sufficient fresh air into the room space mechanically or naturally, and simultaneously discharging the dirty air which is not in compliance with the sanitary requirements, so that the indoor air meets the sanitary requirements and the requirements of the production process. The facilities for completing ventilation work in buildings are collectively called as ventilation equipment. The ventilation equipment is divided into a row fan, a ventilator, a fan and the like, and is divided into two types of industrial use and household use. The fan is divided into high, medium, low and negative pressure. The wind speed detection of the fire-fighting ventilation equipment usually adopts a high-performance wind speed sensor and a whole microcomputer detection controller, but the equipment has complex structure, high manufacturing cost and low cost performance in use, and cannot be known in time when the ventilation fan stops working due to failure without an alarm bell.

Therefore, it is necessary to invent a wind speed detecting apparatus for fire protection ventilation equipment to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind speed detection device for fire control ventilation equipment to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a wind speed detection device for fire-fighting ventilation equipment comprises a ventilation pipeline, wherein the inner wall of the upper side of the ventilation pipeline is provided with a communicating port, the upper outer wall of the upper side of the ventilating duct is fixedly connected with a sealing cylinder, the upper end of the communicating port is communicated with the middle part of the lower end of the inner cavity of the sealing cylinder, the middle part of the inner cavity of the sealing cylinder is provided with a connecting block, the upper end and the lower end of the connecting block are both fixedly connected with a sealing piston, the side wall of the sealing piston is connected with sealing rubber in an adhesive way, the side wall of the sealing piston is connected with the inner wall of the sealing cylinder in an attaching way, the middle part of the upper end surface of the sealing piston at the upper end of the sealing cylinder is fixedly connected with a connecting rod, the upper end of the connecting rod penetrates through the upper end of the inner cavity of the sealing cylinder and extends to the upper part of the sealing cylinder, the upper end of the connecting rod is fixedly connected with an indicating rod, the upper end of the sealing cylinder is fixedly connected with a fixing plate, and a dial gauge is vertically arranged in the middle of one side face of the fixing plate.

Preferably, a limiting sliding groove is vertically formed in the middle of the upper end of the other side face of the fixing plate, and a limiting sliding block matched with the limiting sliding groove is arranged in the limiting sliding groove.

Preferably, a side face of the limiting sliding block is fixedly connected with a sliding block, and the middle of the upper end face of the limiting sliding block and the middle of the inner wall of the upper end of the limiting sliding groove are fixedly connected with metal blocks.

Preferably, the outer wall of one side of the sealing cylinder is fixedly connected with a warning bell, and the two metal blocks are respectively connected with the positive electrode and the negative electrode of the warning bell through leads.

Preferably, damping fluid is arranged between the two sealing pistons, and a thrust spring is arranged between the sealing piston at the lower end of the connecting block and the outer wall of the upper side of the ventilation pipeline.

Preferably, the fixed plate is made of a transparent hard material, and one end of the indicating rod is attached to the other side surface of the fixed plate.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a sealed jar has in air pipe's upside outer wall intercommunication, is provided with sealed piston in the sealed jar, is provided with the graduation apparatus in one side of fixed plate, produces the negative pressure when air flows in air pipe and drives sealed piston and slide in sealed jar, and then drives the indicator lever and reciprocate, the numerical value that the indicator lever instructed on the graduation apparatus is the wind speed size in air pipe, this device simple structure cost is low, the price/performance ratio is higher during the use;

2. the utility model discloses an at one side fixedly connected with sliding block of spacing slider, the upper end inner wall of spacing spout and the upper end of spacing slider all are provided with the metal block, two metal blocks pass through the wire and are connected with the positive negative pole of warning bell respectively, air stops flowing can't produce the negative pressure in the air pipe during ventilation fan trouble, the indicator lever is rebound and promotes the sliding block rebound under thrust spring's thrust action, and then make two metal block contact each other, warning bell circuit is put through and work produces the ringtone in order in time to remind the staff.

Drawings

Fig. 1 is a schematic view of the overall structure section of the present invention.

Fig. 2 is an enlarged schematic view of a structure shown in fig. 1 according to the present invention.

Fig. 3 is a schematic side view of the structure of the scale of the present invention.

In the figure: 1. a ventilation duct; 2. a communication port; 3. sealing the cylinder; 4. a sealing piston; 5. connecting blocks; 6. a connecting rod; 7. an indication lever; 8. a fixing plate; 9. a dial gauge; 10. a limiting chute; 11. a limiting slide block; 12. a slider; 13. a metal block; 14. a warning bell; 15. damping fluid; 16. a thrust spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a wind speed detection device for fire-fighting ventilation equipment as shown in figures 1-3, which comprises an air conduit 1, a communicating port 2 is arranged on the inner wall of the upper side of the air conduit 1, a sealing cylinder 3 is fixedly connected on the outer wall of the upper side of the air conduit 1, the upper end of the communicating port 2 is communicated with the middle part of the lower end of the inner cavity of the sealing cylinder 3, a connecting block 5 is arranged in the middle part of the inner cavity of the sealing cylinder 3, sealing pistons 4 are fixedly connected with the upper end and the lower end of the connecting block 5, the side wall of the sealing piston 4 is connected with the inner wall of the sealing cylinder 3 in a fitting manner, so that a sealing cavity is formed between the two sealing pistons 4, damping liquid 15 is arranged between the two sealing pistons 4, negative pressure is generated when air in the air conduit 1 flows, the sealing piston 4 can slide downwards in the sealing cylinder 3 through, the vertical shaking is not easy to occur.

Secondly, a connecting rod 6 is fixedly connected to the middle of the upper end face of a sealing piston 4 positioned at the upper end of a sealing cylinder 3, a thrust spring 16 is arranged between the sealing piston 4 positioned at the lower end of a connecting block 5 and the upper outer wall of the ventilation pipeline 1, the upper end of the connecting rod 6 penetrates through the upper end of the inner cavity of the sealing cylinder 3 and extends to the upper part of the sealing cylinder 3, an indicating rod 7 is fixedly connected to the upper end of the connecting rod 6, a fixing plate 8 is fixedly connected to one side of the upper end of the sealing cylinder 3, a scale 9 is vertically arranged in the middle of one side face of the fixing plate 8, the fixing plate 8 is made of transparent hard material, one end of the indicating rod 7 is in fit connection with the other side face of the fixing plate 8, the indicating rod 7 is driven to slide by the connection effect of the connecting rod 6 when the sealing, the value indicated on the scale 9 by one end of the indicating rod 7 is the wind speed in the ventilation duct 1 at that time.

Furthermore, a limit chute 10 is vertically arranged in the middle of the upper end of the other side surface of the fixed plate 8, a limit slide block 11 matched with the limit chute 10 is arranged in the limit chute 10, a slide block 12 is fixedly connected with one side surface of the limit slide block 11, metal blocks 13 are fixedly connected with the middle part of the upper end surface of the limit slide block 11 and the middle part of the inner wall of the upper end of the limit chute 10, a warning bell 14 is fixedly connected with the outer wall of one side of the sealing cylinder 3, and the two metal blocks 13 are respectively connected with the positive and negative electrodes of the warning bell 14, the limiting slide block 11 is positioned at the lower end of the limiting slide groove 10 under the action of gravity, the two metal blocks 13 are separated from each other, the warning bell 14 cannot work, when the indication rod 7 slides upwards, one end of the indication rod 7 pushes the sliding block 12 to move upwards and drives the limit sliding block 11 to move upwards, thereby bringing the two metal blocks 13 into contact with each other and the alarm bell 14 is electrically connected and starts to operate to produce a ringing sound.

The utility model discloses the theory of operation:

when air in the ventilation pipeline 1 flows, negative pressure is generated, the sealing piston 4 slides downwards in the sealing cylinder 3 through the communication effect of the communication port 2, and then the indicating rod 7 is driven to move downwards, and the numerical value indicated by one end of the indicating rod 7 on the scale 9 at the moment is the wind speed in the ventilation pipeline 1 at the moment;

when the ventilation fan stops working due to faults, air in the ventilation pipeline 1 cannot flow to generate negative pressure, the sealing piston 4 moves upwards under the thrust action of the thrust spring 16 and drives the indicating rod 7 to move upwards, then the sliding block 12 is pushed and the limiting sliding block 11 is driven to move upwards in the limiting sliding groove 10 until the two metal blocks 13 are in contact with each other, and at the moment, a circuit of the warning bell 14 is switched on and works to generate a bell to remind a worker to overhaul.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a wind speed detection device for fire control ventilation equipment, includes air pipe (1), its characterized in that: the ventilating duct is characterized in that a communicating port (2) is formed in the inner wall of the upper side of the ventilating duct (1), a sealing cylinder (3) is fixedly connected to the outer wall of the upper side of the ventilating duct (1), the upper end of the communicating port (2) is communicated with the middle of the lower end of an inner cavity of the sealing cylinder (3), a connecting block (5) is arranged in the middle of the inner cavity of the sealing cylinder (3), sealing pistons (4) are fixedly connected to the upper end and the lower end of the connecting block (5), sealing rubber is connected to the side wall of each sealing piston (4) in an adhering mode, the side wall of each sealing piston (4) is connected with the inner wall of the sealing cylinder (3) in an adhering mode, a connecting rod (6) is fixedly connected to the middle of the upper end face of each sealing piston (4) at the upper end of the sealing cylinder (3), the upper end of each connecting rod (6) penetrates through the upper end of, one side of the upper end of the sealing cylinder (3) is fixedly connected with a fixing plate (8), and the middle of one side face of the fixing plate (8) is vertically provided with a dial gauge (9).

2. The wind speed detection device for the fire protection ventilation equipment according to claim 1, wherein: the middle part of the upper end of the other side face of the fixed plate (8) is vertically provided with a limiting sliding groove (10), and a limiting sliding block (11) matched with the limiting sliding groove (10) is arranged in the limiting sliding groove (10).

3. The wind speed detection device for the fire protection ventilation equipment according to claim 2, wherein: a side face of the limiting sliding block (11) is fixedly connected with a sliding block (12), and the middle of the upper end face of the limiting sliding block (11) and the middle of the inner wall of the upper end of the limiting sliding groove (10) are fixedly connected with metal blocks (13).

4. The wind speed detection device for the fire protection ventilation equipment according to claim 3, wherein: fixedly connected with warns bell (14) on one side outer wall of sealed jar (3), two metal block (13) are connected with the positive negative pole of warning bell (14) through the wire respectively.

5. The wind speed detection device for the fire protection ventilation equipment according to claim 1, wherein: damping fluid (15) is arranged between the two sealing pistons (4), and a thrust spring (16) is arranged between the sealing piston (4) at the lower end of the connecting block (5) and the outer wall of the upper side of the ventilating duct (1).

6. The wind speed detection device for the fire protection ventilation equipment according to claim 1, wherein: the fixed plate (8) is made of a transparent hard material, and one end of the indicating rod (7) is attached to the other side face of the fixed plate (8).