Fire pump convenient to clean and maintain

Abstract

The invention relates to the technical field of fire pumps, in particular to a fire pump convenient to clean and maintain, which comprises a base and a motor fixedly connected to the base, two pump shells are arranged at the output end of the motor, a second main pipe and a first branch pipe are arranged on the outer walls of the pump shells, and a filter screen is arranged on the inner wall of the first branch pipe. The outer wall of the first branch pipe is fixedly connected with the outer wall of the second main pipe, and the second main pipe and the first branch pipe are communicated with a cavity defined by the two pump shells. According to the fire pump convenient to clean and maintain, through cooperation of a rotating ring and a balancing weight, when the fire pump is normally placed, the rotating ring drives a sliding ring and a scraping piece to rotate, the scraping piece scrapes a filtering lantern ring, the function of automatically cleaning blockages is achieved, the locking effect can be enhanced while disassembly is convenient, and after the whole device is turned over by 180 degrees, the whole device is not prone to falling off. The inserting blocks can be separated from the notches, the two pump shells can be rapidly separated, bolts do not need to be loosened step by step, and the maintenance and cleaning efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire pumps, and specifically relates to a fire pump that is convenient for cleaning and maintenance. Background Art

[0002] A pump is a machine that transports fluids or increases the pressure of fluids. It transmits the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. Pumps are mainly used to transport liquids such as water, oil, acid-base solutions, emulsions, suspension liquids, and liquid metals, and can also transport liquid-gas mixtures and liquids containing suspended solids. Existing fire pumps are usually connected coaxially with motors.

[0003] In the prior art, the outer shell of a fire pump is usually connected by a plurality of bolts, which leads to cumbersome steps during cleaning and maintenance, thereby reducing the efficiency of maintenance and cleaning. Moreover, a filter screen is usually provided on the fire pump, and it is necessary to manually clean the filter screen to prevent blockage, or other structures need to be added to make it automatically prevent blockage, which increases the manufacturing difficulty and production cost. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a fire pump that is convenient for cleaning and maintenance.

[0005] The present invention adopts the following technical solutions. A fire pump that is convenient for cleaning and maintenance includes a base and a motor fixedly connected to the base. Two pump casings are provided at the output end of the motor. A main pipe two and a branch pipe one are provided on the outer wall of the pump casing. A filter screen is provided on the inner wall of the branch pipe one. The branch pipe one and the main pipe two are fixedly connected to the outer wall. The main pipe two and the branch pipe one communicate with the cavity formed by the two pump casings. It further includes:

[0006] A locking mechanism for automatically unlocking the connection between the two pump casings, and the locking mechanism is arranged inside the pump casing;

[0007] An anti-blocking mechanism that can automatically clean the filter screen, and the anti-blocking mechanism is arranged on the branch pipe one and the main pipe two;

[0008] And a flow stabilizing mechanism that can stabilize the pumping rate of water, and the flow stabilizing mechanism is arranged inside the anti-blocking mechanism.

[0009] As a further description of the above technical solution: The locking mechanism includes a notch opened on one of the pump casings. A fixed block is fixedly connected to the inner wall of the bottom of the notch. An insertion block abuts against the upper end of the fixed block. A lifting block is inserted up and down inside the insertion block and the fixed block. One end of the insertion block is fixedly connected to the other pump casing.

[0010] As a further description of the above technical solution: The anti-blocking mechanism includes a rotating ring rotatably arranged at the opposite ends of the first branch pipe and the second main pipe. An air chamber is opened on one of the pump casings. The air chamber is communicated with the notch. One end of the air chamber is communicated with a hose. The other end of the hose is communicated with a telescopic airbag. One end of the telescopic airbag is fixedly connected to the inner cavity of the rotating ring. Arc springs are fixedly connected to both ends of the inner cavity of the telescopic airbag. One end of the second main pipe is rotatably arranged in the inner cavity of the rotating ring. The end of the second main pipe extending into the inner cavity of the rotating ring abuts against the telescopic airbag. A counterweight is fixedly connected to the outer wall of the bottom end of the rotating ring. A sliding frame is horizontally slidably arranged in the first branch pipe. The upper and lower ends of the sliding frame respectively extend to the outside and the inner cavity of the first branch pipe. A squeezing rod is fixedly connected to the side wall of the upper end of the sliding frame close to the rotating ring. The end of the squeezing rod away from the sliding frame abuts against an inclined slider, and the inclined slider is fixedly connected to the rotating ring. A filtering collar is fixedly connected to the inner wall of the second main pipe. The filter screen is arranged on the inner wall of the filtering collar. A sliding ring is horizontally slidably arranged on the inner wall of the rotating ring. A scraping blade is fixedly connected to the inner wall of the sliding ring.

[0011] As a further description of the above technical solution: The flow stabilizing mechanism includes a chute opened on the first branch pipe. A moving plate is fixedly connected to the sliding frame, and the moving plate is movably arranged in the chute. Scale lines are provided on the inner wall of the chute. A non-Newtonian fluid is arranged in the chute. The sliding cavity where the sliding ring is located is communicated with the inner cavity of the telescopic airbag.

[0012] As a further description of the above technical solution: A plurality of notches are opened.

[0013] As a further description of the above technical solution: The end of the inclined slider close to the squeezing rod is provided with an arc-shaped inclined surface.

[0014] As a further description of the above technical solution: One end of the telescopic airbag away from the second main pipe is fixedly connected to the rotating ring, and the other end of the telescopic airbag abuts against the second main pipe.

[0015] As a further description of the above technical solution: The horizontal plane of the non-Newtonian fluid is flush with the scale line.

[0016] The present invention provides a fire pump convenient for cleaning and maintenance through improvement. Compared with the prior art, it has the following improvements and advantages:

[0017] First: After the whole device is flipped 180 degrees, the insertion block can be separated from the notch, and the two pump casings can be quickly separated without loosening each bolt step by step, improving the efficiency of maintenance and cleaning;

[0018] Second: Through the cooperation of the rotating ring and the counterweight, when placed normally, the rotating ring drives the sliding ring and the scraping blade to rotate, so that the scraping blade scrapes the filtering collar, realizing the function of automatically cleaning the blockage;

[0019] Thirdly, non-Newtonian fluids will hinder the rapid movement of the moving plate, so that the rotating ring can only rotate slowly, preventing the scraping blade from stirring in the water flow to form turbulence when the rotating ring and the scraping blade rotate rapidly, which affects the pumping efficiency. At the same time, it is convenient to disassemble and can enhance the locking effect;

[0020] In summary, through the cooperation of the rotating ring and the counterweight, when placed normally, the rotating ring drives the sliding ring and the scraping blade to rotate, so that the scraping blade scrapes the filter sleeve ring, realizing the function of automatically cleaning the blockage. And non-Newtonian fluids will hinder the rapid movement of the moving plate, so that the rotating ring can only rotate slowly, preventing the scraping blade from stirring in the water flow to form turbulence when the rotating ring and the scraping blade rotate rapidly, which affects the pumping efficiency. At the same time, it is convenient to disassemble and can enhance the locking effect. After the whole device is rotated 180 degrees, the plug can be detached from the slot, and the two pump housings can be quickly separated without loosening each bolt step by step, improving the efficiency of maintenance and cleaning. Brief Description of the Drawings

[0021] The present invention will be further explained below with reference to the drawings and embodiments:

[0022] Figure 1 It is a schematic structural diagram of a fire pump convenient for cleaning and maintenance provided by an embodiment of the present invention;

[0023] Figure 2 It is a three-dimensional sectional view of the first branch pipe provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of the lifting block and the plug being separated provided by an embodiment of the present invention;

[0025] Figure 4 It is a three-dimensional sectional view of the rotating ring provided by an embodiment of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the inclined slider provided by an embodiment of the present invention;

[0027] Figure 6 It is a three-dimensional sectional view of the telescopic airbag provided by an embodiment of the present invention;

[0028] Figure 7 is Figure 2 the enlarged view of A in

[0029] Figure 8 is Figure 4 the enlarged view of B in

[0030] In the figure: 1, base; 2, motor; 3, pump housing; 4, first branch pipe; 5, locking mechanism; 51, notch; 52, fixed block; 53, insertion block; 54, lifting block; 6, anti-blocking mechanism; 61, rotating ring; 62, air cavity; 63, hose; 64, counterweight; 65, filter collar; 66, sliding frame; 67, extrusion rod; 68, inclined slider; 69, telescopic airbag; 610, arc spring; 611, wiper blade; 7, flow stabilizing mechanism; 71, sliding ring; 72, sliding groove; 73, scale line; 74, moving plate; 8, second main pipe. Detailed implementation mode

[0031] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below with reference to specific drawings. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0032] Please refer to Figure 1 - Figure 8 An embodiment of the present invention provides a technical solution: a fire pump convenient for cleaning and maintenance, including a base 1 and a motor 2 fixedly connected to the base 1. There are two pump housings 3 provided at the output end of the motor 2. A second main pipe 8 and a first branch pipe 4 are provided on the outer wall of the pump housing 3. A filter net is provided on the inner wall of the first branch pipe 4. The first branch pipe 4 and the second main pipe 8 are fixedly connected to the outer wall, and the second main pipe 8 and the first branch pipe 4 communicate with the cavity formed by the two pump housings 3. It further includes:

[0033] A locking mechanism 5 for automatically unlocking the connection between the two pump housings 3. The locking mechanism 5 is arranged in the pump housing 3;

[0034] An anti-blocking mechanism 6 capable of automatically cleaning the filter net. The anti-blocking mechanism 6 is arranged on the first branch pipe 4 and the second main pipe 8;

[0035] And a flow stabilizing mechanism 7 capable of stabilizing the pumping rate of water. The flow stabilizing mechanism 7 is arranged in the anti-blocking mechanism 6.

[0036] Specifically, through the cooperation of the rotating ring 61 and the counterweight 64, when placed normally, the rotating ring 61 drives the sliding ring 71 and the wiper blade 611 to rotate, so that the wiper blade 611 scrapes the filter collar 65, realizing the function of automatically cleaning the blockage. And non-Newtonian fluid will hinder the rapid movement of the moving plate 74, so that the rotating ring 61 can only rotate slowly, preventing the rotating ring 61 and the wiper blade 611 from rotating rapidly, and the wiper blade 611 stirs in the water flow to form turbulence, affecting the pumping efficiency. And it is convenient to disassemble and can enhance the locking effect at the same time. After the whole device is turned 180 degrees, the insertion block 53 can be separated from the notch 51, and the two pump housings 3 can be quickly separated without loosening each bolt step by step, improving the efficiency of maintenance and cleaning.

[0037] In yet another embodiment provided by the present invention, the locking mechanism 5 includes a notch 51 formed in one of the pump housings 3. A fixing block 52 is fixedly connected to the inner wall of the bottom of the notch 51. An insertion block 53 abuts against the upper end of the fixing block 52. A lifting block 54 is inserted vertically and movably in the insertion block 53 and the fixing block 52. One end of the insertion block 53 is fixedly connected to the other pump housing 3.

[0038] A plurality of notches 51 are formed.

[0039] Specifically, after the entire device is flipped 180 degrees, the insertion block 53 can be disengaged from the notch 51, and the two pump housings 3 can be quickly separated without loosening each bolt step by step, improving the efficiency of maintenance and cleaning.

[0040] In yet another embodiment provided by the present invention, the anti-blocking mechanism 6 includes a rotating ring 61 rotatably provided at the opposite ends of the first branch pipe 4 and the second main pipe 8. An air cavity 62 is formed in one of the pump housings 3. The air cavity 62 is communicated with the notch 51. One end of the air cavity 62 is communicated with a hose 63. The other end of the hose 63 is communicated with a telescopic airbag 69. One end of the telescopic airbag 69 is fixedly connected to the inner cavity of the rotating ring 61. Arc springs 610 are fixedly connected to both ends of the inner cavity of the telescopic airbag 69. One end of the second main pipe 8 is rotatably provided in the inner cavity of the rotating ring 61. The end of the second main pipe 8 extending into the inner cavity of the rotating ring 61 abuts against the telescopic airbag 69. A counterweight block 64 is fixedly connected to the outer wall of the bottom end of the rotating ring 61. A sliding frame 66 is horizontally slidably provided in the first branch pipe 4. The upper and lower ends of the sliding frame 66 respectively extend to the outside and the inner cavity of the first branch pipe 4. A squeezing rod 67 is fixedly connected to the side wall of the upper end of the sliding frame 66 close to the rotating ring 61. One end of the squeezing rod 67 away from the sliding frame 66 abuts against an inclined slider 68, and the inclined slider 68 is fixedly connected to the rotating ring 61. A filter sleeve ring 65 is fixedly connected to the inner wall of the second main pipe 8. A filter screen is arranged on the inner wall of the filter sleeve ring 65. A sliding ring 71 is horizontally slidably provided on the inner wall of the rotating ring 61. A scraping blade 611 is fixedly connected to the inner wall of the sliding ring 71.

[0041] An arc-shaped inclined surface is formed at one end of the inclined slider 68 close to the squeezing rod 67.

[0042] One end of the telescopic airbag 69 away from the second main pipe 8 is fixedly connected to the rotating ring 61, and the other end of the telescopic airbag 69 abuts against the second main pipe 8.

[0043] Specifically, through the cooperation of the rotating ring 61 and the counterweight block 64, when placed normally, the rotating ring 61 drives the sliding ring 71 and the scraping blade 611 to rotate, so that the scraping blade 611 scrapes the filter sleeve ring 65, realizing the function of automatically cleaning the blockage.

[0044] In yet another embodiment provided by the present invention, the flow stabilizing mechanism 7 includes a chute 72 formed in the first branch pipe 4. A moving plate 74 is fixedly connected to the sliding frame 66, and the moving plate 74 is movably arranged in the chute 72. Scale lines 73 are provided on the inner wall of the chute 72. A non-Newtonian fluid is provided in the chute 72, and the sliding cavity where the sliding ring 71 is located is communicated with the inner cavity of the expansion airbag 69.

[0045] The horizontal plane of the non-Newtonian fluid is flush with the scale line 73.

[0046] Specifically, the non-Newtonian fluid will hinder the rapid movement of the moving plate 74, so that the rotating ring 61 can only rotate slowly, preventing the scraping blade 611 from stirring in the water flow to form turbulence when the rotating ring 61 and the scraping blade 611 rotate rapidly, affecting the pumping efficiency, and it is convenient to disassemble and can enhance the locking effect at the same time.

[0047] Working principle: When using this device, connect the first branch pipe 4 to other pipes, and then turn on the motor 2 to drive the fan blades in the pump housing 3 to rotate for suction. The first branch pipe 4 and the liquid inlet of the second main pipe 8. When the filter screen is blocked, the flow rate will slow down, and the force received by the bottom end of the sliding frame 66 towards the rotating ring 61 will decrease, so that the extrusion force of the extrusion rod 67 on the inclined slider 68 will decrease. Under the action of the gravity of the counterweight 64, the counterweight 64 and the rotating ring 61 will rotate until the counterweight 64 is at the lower side, so that the rotating ring 61 drives the sliding ring 71 and the scraping blade 611 to rotate, so that the scraping blade 611 scrapes the filter sleeve 65 to achieve the function of automatically cleaning the blockage. When the water flow increases, the extrusion rod 67 extrudes the inclined slider 68, causing the counterweight 64 to rotate from directly below;

[0048] After that, if it is necessary to disassemble the two pump housings 3 for cleaning or maintenance, after turning off the motor 2, directly turn the entire device 180 degrees. At this time, the counterweight 64 will flip upward, causing the counterweight 64 to automatically rotate under the action of gravity. When the rotating ring 61 rotates accordingly, the end of the second main pipe 8 located in the rotating ring 61 will move away from the expansion airbag 69. The expansion airbag 69 expands and restores under the elastic force of the arc spring 610, and the lifting block 54 in the pump housing 3 will also disengage from the insertion block 53 and the fixed block 52, so that the insertion block 53 can disengage from the notch 51, and the two pump housings 3 can be quickly separated without loosening each bolt step by step, improving the efficiency of maintenance and cleaning;

[0049] When the water flow rate suddenly slows down, the counterweight 64 will suddenly rotate. At this time, the inclined slider 68 will squeeze the extrusion rod 67, causing the sliding frame 66 to move away from the rotating ring 61. However, at this time, the moving plate 74 will move in the non-Newtonian fluid placed in the chute 72, and the non-Newtonian fluid will hinder the rapid movement of the moving plate 74, so that the rotating ring 61 can only rotate slowly, preventing the rotating ring 61 and the scraping blade 611 from stirring in the water flow to form turbulence and affecting the pumping efficiency;

[0050] And after the two pump housings 3 are installed and placed, the counterweight 64 drives the rotating ring 61 to rotate, and the main pipe two 8 will squeeze the telescopic airbag 69. Thus, the gas in the telescopic airbag 69 will enter the notch 51 on the upper side of the lifting block 54 through the hose 63 and the air cavity 62, so that the gas can squeeze the notch 51 downward, preventing the lifting block 54 from moving upward due to vibration during the operation of the pump. This makes the disassembly convenient and can enhance the locking effect at the same time. Moreover, when the telescopic airbag 69 is squeezed, the gas in the telescopic airbag 69 will squeeze the sliding ring 71, thereby squeezing the sliding ring 71 towards the filter screen, further increasing the pressure and improving the effect of subsequent cleaning of the filter screen.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The descriptions in the above embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A fire pump convenient for cleaning and maintenance, comprising a base (1) and a motor (2) fixedly connected to the base (1). The output end of the motor (2) is provided with two pump casings (3). The outer wall of the pump casing (3) is provided with a main pipe two (8) and a branch pipe one (4). A filter screen is arranged on the inner wall of the branch pipe one (4). The outer walls of the branch pipe one (4) and the main pipe two (8) are fixedly connected. The main pipe two (8) and the branch pipe one (4) are communicated with the cavity formed by the two pump casings (3). It is characterized in that, It further includes: A locking mechanism (5) for automatically unlocking the connection between two pump housings (3), and the locking mechanism (5) is arranged inside the pump housing (3); An anti-blocking mechanism (6) capable of automatically cleaning the filter screen, and the anti-blocking mechanism (6) is arranged on the first branch pipe (4) and the second main pipe (8); And a flow stabilizing mechanism (7) capable of stabilizing the pumping rate of water, and the flow stabilizing mechanism (7) is arranged inside the anti-blocking mechanism (6).

2. The fire pump that is convenient for cleaning and maintenance according to claim 1, wherein: The locking mechanism (5) includes a notch (51) opened on one of the pump housings (3), a fixed block (52) is fixedly connected to the inner wall of the bottom of the notch (51), a plug block (53) abuts against the upper end of the fixed block (52), a lifting block (54) is inserted and movably arranged up and down in the plug block (53) and the fixed block (52), and one end of the plug block (53) is fixedly connected to the other pump housing (3).

3. The fire pump according to claim 2, which is convenient for cleaning and maintenance, is characterized in that: The anti-blocking mechanism (6) includes a rotating ring (61) rotatably arranged at the opposite ends of the first branch pipe (4) and the second main pipe (8), an air cavity (62) is opened on one of the pump housings (3), the air cavity (62) is communicated with the notch (51), one end of the air cavity (62) is communicated with a hose (63), the other end of the hose (63) is communicated with a telescopic airbag (69), and one end of the telescopic airbag (69) is fixedly connected to the inner cavity of the rotating ring (61), arc springs (610) are fixedly connected to both ends of the inner cavity of the telescopic airbag (69), one end of the second main pipe (8) is rotatably arranged in the inner cavity of the rotating ring (61), the end of the second main pipe (8) extending into the inner cavity of the rotating ring (61) abuts against the telescopic airbag (69), a counterweight block (64) is fixedly connected to the outer wall of the bottom end of the rotating ring (61), a sliding frame (66) is horizontally slidably arranged in the first branch pipe (4), the upper and lower ends of the sliding frame (66) respectively extend to the outside and the inner cavity of the first branch pipe (4), a squeezing rod (67) is fixedly connected to the side wall of the upper end of the sliding frame (66) close to the rotating ring (61), one end of the squeezing rod (67) away from the sliding frame (66) abuts against an inclined slider (68), and the inclined slider (68) is fixedly connected to the rotating ring (61), a filter sleeve ring (65) is fixedly connected to the inner wall of the second main pipe (8), the filter screen is arranged on the inner wall of the filter sleeve ring (65), a sliding ring (71) is horizontally slidably arranged on the inner wall of the rotating ring (61), and a scraping blade (611) is fixedly connected to the inner wall of the sliding ring (71).

4. The fire pump convenient for cleaning and maintenance according to claim 3, characterized in that: The flow stabilizing mechanism (7) includes a chute (72) opened on the first branch pipe (4), a moving plate (74) is fixedly connected to the sliding frame (66), and the moving plate (74) is movably arranged in the chute (72), scale lines (73) are arranged on the inner wall of the chute (72), non-Newtonian fluid is arranged in the chute (72), and the sliding cavity where the sliding ring (71) is located is communicated with the inner cavity of the telescopic airbag (69).

5. The fire pump convenient for cleaning and maintenance according to claim 2, wherein: A plurality of notches (51) are opened.

6. The fire pump convenient for cleaning and maintenance according to claim 3, characterized in that: The end of the inclined slider (68) close to the squeezing rod (67) is provided with an arc-shaped inclined surface.

7. The fire pump convenient for cleaning and maintenance according to claim 3, characterized in that: One end of the telescopic airbag (69) away from the second main pipe (8) is fixedly connected to the rotating ring (61), and the other end of the telescopic airbag (69) abuts against the second main pipe (8).

8. The fire pump convenient for cleaning and maintenance according to claim 4, characterized in that: The horizontal plane of the non-Newtonian fluid is flush with the scale line (73).

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