阅读说明：本技术 一种消防用泡沫泵 (Foam pump for fire control ) 是由 陈先锋 刘博� 董智桥 张英 于 2019-11-06 设计创作，主要内容包括：本发明公开了一种消防用泡沫泵,包括电机、吸入室、密封腔和排出室,所述吸入室设置在密封腔一侧,所与排出室设置在密封腔另一侧,所述吸入室一端安装有轴承盖,所述吸入室内部安装有填料压盖,所述电机输出端贯穿有轴承盖延伸至吸入室内部连接有传动轴,所述传动轴一端贯穿填料压盖通过联轴器连接有中间轴,所述联轴器的数量为两个,所述传动轴另一端通过另一个联轴器连接有转子,所述转子外部套设有定子。本发明通过带螺旋进液片的中间轴把传动轴和转子连接在一起,使传动轴和转子达到同步转动,达到有效输送B类泡沫的目的,另外也使得内部结构工作时运行更加平稳,不易磨损,提高消防用泡沫泵的使用寿命。适用于泡沫泵。(The invention discloses a foam pump for fire fighting, which comprises a motor, a suction chamber, a sealing chamber and a discharge chamber, wherein the suction chamber is arranged on one side of the sealing chamber, the discharge chamber is arranged on the other side of the sealing chamber, one end of the suction chamber is provided with a bearing cover, a packing gland is arranged in the suction chamber, the output end of the motor penetrates through the bearing cover and extends to the inside of the suction chamber to be connected with a transmission shaft, one end of the transmission shaft penetrates through the packing gland to be connected with an intermediate shaft through a coupler, the number of the couplers is two, the other end of the transmission shaft is connected with a rotor through another coupler, and a stator is sleeved outside the. The transmission shaft and the rotor are connected together through the middle shaft with the spiral liquid inlet piece, so that the transmission shaft and the rotor synchronously rotate, the purpose of effectively conveying B-type foam is achieved, in addition, the operation of an internal structure is more stable during working, the abrasion is not easy, and the service life of the foam pump for fire fighting is prolonged. Is suitable for foam pump.)

1. The utility model provides a foam pump for fire control, includes motor (10), suction chamber, seal chamber and discharge chamber (1), its characterized in that: the utility model discloses a suction chamber, including suction chamber, motor (10) output, bearing cap (8), transmission shaft (6), the quantity of shaft coupling (4) is two, the jackshaft (6) other end is connected with rotor (2) through another shaft coupling (4), rotor (2) outside cover is equipped with stator (3).

2. A fire fighting foam pump as defined in claim 1, wherein: the top of the suction chamber is provided with a liquid inlet (5), and the liquid inlet (5) is obliquely arranged.

3. A fire fighting foam pump as defined in claim 1, wherein: the outer part of the intermediate shaft (6) is connected with a spiral liquid inlet sheet.

4. A fire fighting foam pump as defined in claim 2, wherein: the suction chamber is divided into a left suction chamber and a right suction chamber.

5. A fire fighting foam pump as set forth in claim 4, characterized in that: the transmission shaft (8) and the packing gland (7) are positioned in the right suction chamber.

6. A fire fighting foam pump as set forth in claim 4, characterized in that: the middle shaft (6) and the two couplers (4) are both positioned in the left suction chamber.

7. A fire fighting foam pump as set forth in claim 4, characterized in that: the liquid inlet (5) is positioned above the left suction chamber, and the inclined angle of the liquid inlet (5) is fifteen-seventy-five degrees.

8. A fire fighting foam pump as defined in claim 1, wherein: and the rotor (2) and the stator (3) are both positioned in the sealed cavity.

9. A fire fighting foam pump as defined in claim 3, wherein: the spiral liquid inlet sheet is arranged in an arc shape.

Technical Field

The invention relates to the technical field of foam pumps, in particular to a foam pump for fire fighting.

Background

The foam pump is a special pump for delivering foam stock solution or other fire extinguishing liquid, which is installed on a fire truck or other fire fighting equipment. The special foam liquid for fire extinguishing is conveyed by the foam pump to be mixed with water and air to form special fire extinguishing foam which is covered on combustible to achieve the effect of quickly extinguishing fire.

Most of foam pumps which are independently developed in China and used on fire fighting trucks at present are plunger pumps and vane pumps. The plunger pump belongs to a displacement pump and works by changing the volume of a sealed working cavity by means of the reciprocating motion of a plunger in a cylinder body. Vane pumps also belong to the group of displacement pumps, which operate by means of a change in the working volume formed by the vanes, the rotor and the inner surface of the stator. The plunger pump and the vane pump are simple to manufacture and convenient to work, and are the choices of most domestic companies at present.

The two foam pumps have good performance when conveying the A-type foam liquid and water. However, when the working temperature is low, the B-type foam liquid is conveyed or the B-type foam liquid is not cleaned in time after being conveyed, so that the B-type foam is adhered to an internal structure, the blockage is easy to occur, and the conveying efficiency is reduced.

Disclosure of Invention

The invention aims to provide a foam pump for fire fighting, which achieves the aim of improving efficiency.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a foam pump for fire control, includes motor, suction chamber, seal chamber and discharge chamber, suction chamber sets up in seal chamber one side, and institute and discharge chamber set up at the seal chamber opposite side, the bearing cap is installed to suction chamber one end, suction chamber internally mounted has gland, the motor output runs through there is the bearing cap to extend to suction chamber internally connected with transmission shaft, transmission shaft one end runs through gland and has the jackshaft through the coupling joint, the quantity of shaft coupling is two, the jackshaft other end has the rotor through another coupling joint, the outside cover of rotor is equipped with the stator.

Preferably, the top of the suction chamber is provided with a liquid inlet which is arranged in an inclined manner.

Preferably, the outer part of the intermediate shaft is connected with a spiral liquid inlet sheet.

Preferably, the suction chamber is divided into a left suction chamber and a right suction chamber.

Preferably, the drive shaft and the packing gland are located in the right suction chamber.

Preferably, the intermediate shaft and the two couplings are both located in the left suction chamber.

Preferably, the liquid inlet is positioned above the left suction chamber, and the inclined angle of the liquid inlet is fifteen to seventy-five degrees.

Preferably, the rotor and the stator are both located inside the sealed cavity.

Preferably, the spiral liquid inlet sheet is arranged in an arc shape.

The invention provides a foam pump for fire fighting. The method has the following beneficial effects:

(1) the transmission shaft and the rotor are connected together through the middle shaft with the spiral liquid inlet piece, so that the transmission shaft and the rotor synchronously rotate, the purpose of effectively conveying B-type foam is achieved, in addition, the operation of an internal structure is more stable during working, the abrasion is not easy, and the service life of the foam pump for fire fighting is prolonged.

(2) The invention has the characteristics of lightness, smallness, low cost, easy assembly and maintenance and the like, and is suitable for fire fighting, chemical engineering, energy, paper making and food. It is not only limited to pumping B-type foam, but also can deliver various liquids containing granular substances and fibers with the kinematic viscosity not higher than 4.62 x 10^6(mm ^2/s), and has the advantages of quantitative delivery, convenient regulation and extremely small pulsation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the intermediate shaft;

FIG. 3 is a side view of the intermediate shaft;

fig. 4 is a schematic diagram of a 45 ° axial side structure of the intermediate shaft.

In the figure: the device comprises a discharge chamber 1, a rotor 2, a stator 3, a coupler 4, a liquid inlet 5, an intermediate shaft 6, a packing gland 7, a transmission shaft 8, a bearing cap 9 and a motor 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

As shown in figure 1, the embodiment provides a foam pump for fire fighting, which comprises a motor 10, a suction chamber, a sealing cavity and a discharge chamber 1, wherein the suction chamber is arranged at one side of the sealing cavity, the discharge chamber 1 is arranged at the other side of the sealing cavity, one end of the suction chamber is fixedly provided with a bearing cover 9, a packing gland 7 is fixedly arranged inside the suction chamber, the output end of the motor 10 penetrates through the bearing cover 9 and extends to the inside of the suction chamber and is fixedly connected with a transmission shaft 8, one end of the transmission shaft 8 penetrates through the packing gland 7 and is fixedly connected with an intermediate shaft 6 through a coupler 4, the outside of the intermediate shaft 6 is fixedly connected with a spiral liquid inlet sheet, the spiral liquid inlet sheet is arranged in an arc shape, the number of the couplers 4 is two, the other end of the intermediate shaft 6 is fixedly connected with a rotor 2 through another coupler 4, the outside of, the liquid inlet 5 is obliquely arranged, the suction chamber is divided into a left suction chamber and a right suction chamber, the transmission shaft 8 and the packing gland 7 are positioned in the right suction chamber, the intermediate shaft 6 and the two couplers 4 are positioned in the left suction chamber, the liquid inlet 5 is positioned above the left suction chamber, and the inclination angle of the liquid inlet 5 is fifteen degrees to seventy-five degrees, the invention connects the transmission shaft 8 and the rotor 2 together through the intermediate shaft 6 with the spiral liquid inlet sheet, so that the transmission shaft 8 and the rotor 2 synchronously rotate to achieve the purpose of effectively conveying B-type foam, in addition, the internal structure is more stable to operate during working, is not easy to wear, prolongs the service life of the foam pump for fire protection, and adopts the liquid inlet 5 with a certain inclination angle and the intermediate shaft 6 structure with the spiral liquid inlet sheet, because the existing foam pump is not cleaned in time and is easy to block after conveying B-type foam liquid or conveying B-type foam liquid when the, the fire-fighting foam pump has the advantages that the sensitivity of the rotor-bushing combination to the viscosity of foam is low, so that the performance is good when B-type foam with high viscosity is conveyed, the influence of low temperature on the viscosity of B-type foam liquid is considered, a liquid inlet with a certain inclination angle and an intermediate shaft structure with a spiral liquid inlet sheet are adopted, the B-type foam liquid is cut and stirred by the spiral liquid inlet sheet before entering the suction cavity, a spiral forward thrust is provided, the conveying of the B-type foam liquid is facilitated, and the fire-fighting foam pump is light, small, low in cost, easy to assemble and maintain and the like, and is suitable for fire-fighting, chemical engineering, energy, paper making and food. It is not only limited to pumping B-type foam, but also can deliver various liquids containing granular substances and fibers with the kinematic viscosity not higher than 4.62 x 10^6(mm ^2/s), and has the advantages of quantitative delivery, convenient regulation and extremely small pulsation.

When the motor 10 is started, the transmission shaft 8 connected with the motor 10 starts to rotate, and the intermediate shaft 6 with the spiral liquid inlet sheet and the rotor 2 synchronously rotate through the coupler 4. The rotor 2 eccentrically rotates in the stator 3, vacuum is formed in the suction chamber, foam liquid enters the suction chamber from the inclined liquid inlet 5, the spiral liquid inlet sheet cuts and stirs the foam at a high speed, and finally the foam reaches the sealing cavity through the intermediate shaft 6 and is continuously and uniformly conveyed to the discharge chamber 1.

In conclusion, the transmission shaft 8 and the rotor 2 are connected together through the middle shaft 6 with the spiral liquid inlet piece, so that the transmission shaft 8 and the rotor 2 synchronously rotate, the purpose of effectively conveying B-type foam is achieved, in addition, the operation of an internal structure is more stable during working, the abrasion is not easy, and the service life of the foam pump for fire fighting is prolonged.

The fire-fighting water tank has the characteristics of light weight, small size, low cost, easiness in assembly and maintenance and the like, and is suitable for fire fighting, chemical engineering, energy, papermaking and food. It is not only limited to pumping B-type foam, but also can deliver various liquids containing granular substances and fibers with the kinematic viscosity not higher than 4.62 x 10^6(mm ^2/s), and has the advantages of quantitative delivery, convenient regulation and extremely small pulsation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.