Supercharging device for building water supply and drainage engineering

Abstract

The utility model relates to the related technical field of supercharging devices, in particular to a supercharging device for building water supply and drainage engineering. A motor box is fixedly connected to the top of the bottom plate, a pressurizing pipe is fixedly connected to one side of the top of the motor box, and a mounting sleeve is fixedly connected to the top of the pressurizing pipe. Under the matching action of the bottom plate, the motor box, the pressurizing pipe, the mounting sleeve, the filter cartridge, the inserting sleeve, the inserting pipe, the water inlet pipe, the clamping mechanism and the filtering mechanism, a user can conveniently and quickly replace the filter cartridge regularly, a large amount of impurities are prevented from being adhered to the interior of the filter cartridge, the sewage filtering effect of the filter cartridge is improved, and the service life of the filter cartridge is prolonged. The problems that although an existing supercharging device for building water supply and drainage engineering can purify sewage, a filtering net bag in the supercharging device is inconvenient to replace, and under the condition that the sewage is filtered for a long time, a large number of impurities adhere to the interior of the filtering net bag, so that the filtering effect is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the related technical field of pressure increasing device, concretely is a pressure increasing device for building water supply and drainage engineering. BACKGROUND

[0002] The building engineering major is mainly responsible for the teaching and management of the building engineering direction of civil engineering major, mainly cultivates the basic theory and basic knowledge of engineering mechanics, soil mechanics, surveying, building construction and structural engineering disciplines, and is the general term of various buildings and engineering facilities providing material technical basis for human life and production, and the building water supply and drainage engineering includes building water supply system, building fire water supply system, building drainage system, building hot water supply, community water supply and drainage, waterscape, greening sprinkling irrigation and swimming pool water supply and drainage system.

[0003] The utility model discloses a kind of pressure increasing devices for building water supply and drainage engineering, belong to the related technical field of pressure increasing device, to solve the problem that water pollution is increasingly serious in prior art when water treatment technology is not developed, the consciousness of environmental protection is not strong, sewage discharge, lead to water quality in river is getting worse and worse, seriously affect the use safety of surrounding water quality, including mixed water heating device shell, push rod drives vertical plate to move transversely, and then vertical plate can drive cross bar to move synchronously, when cross bar moves transversely, vertical rod will be in contact with multiple groups of convex points in turn, so that vertical rod will knock the surface of filter cartridge when being in contact with convex point, and then vibration of filter cartridge can be generated, and attached scale and other sundries on filter cartridge are removed, and cleaning work can be completed when filter cartridge filters water, without stopping mixed water heating work, can avoid affecting mixed water heating work.

[0004] But the above patent still has the following problems: although the patent can purify sewage, the filter screen bag in the patent is inconvenient to replace, and a large amount of impurities is adhered to the inside of the filter screen bag in the case of long-term filtration of sewage, which reduces the filtration effect. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a pressure increasing device for building water supply and drainage engineering to solve the problem that the existing pressure increasing device for building water supply and drainage engineering can purify sewage, but the filter screen bag in the device is inconvenient to replace, and a large amount of impurities is adhered to the inside of the filter screen bag in the case of long-term filtration of sewage, which reduces the filtration effect.

[0006] The technical scheme of the utility model is as follows:

[0007] The utility model provides a kind of building water supply and drainage engineering booster unit, including: bottom plate;The top of the bottom plate is fixedly connected with motor box, the top side of the motor box is fixedly connected with booster pipe, the top of the booster pipe is fixedly connected with mounting sleeve, the top of the mounting sleeve is provided with filter cartridge, the filter cartridge is fixedly connected with the plug-in sleeve near the mounting sleeve, the inside of the plug-in sleeve is provided with plug-in pipe, the plug-in pipe is fixedly connected with the filter cartridge, the outer surface of the plug-in pipe is sleeved with inlet pipe, the end of the inlet pipe away from the plug-in pipe penetrates the booster pipe and extends to the outside of booster pipe;The inside of the mounting sleeve is provided with the clamping mechanism that the filter cartridge is quickly replaced;The inside of the filter cartridge is provided with the filter mechanism that the impurities inside water are adsorbed;The bottom side of the booster pipe is provided with the linkage mechanism that drainage is boosted.

[0008] Preferably, the clamping mechanism includes: a plurality of ball grooves are uniformly provided in the inside of the mounting sleeve, the inside of the ball groove is provided with a steel ball, the mounting sleeve is slidably connected with an extrusion ring near the steel ball, the outer surface of the extrusion ring is fixedly connected with a connecting ring, the outer surface of the connecting ring is fixedly connected with a force ring, the bottom of the extrusion ring is provided with a spring, and the spring is arranged in the inside of the mounting sleeve; The inner wall of the extrusion ring is provided with a movable groove, the plug-in sleeve is provided with a clamping groove near the steel ball, and the movable groove, the clamping groove and the steel ball are matched.

[0009] Preferably, the filter mechanism includes: a first filter screen is arranged near the plug-in pipe of the filter cartridge, an activated carbon layer is arranged on the outer surface of the first filter screen, a filter cotton layer is arranged on the outer surface of the activated carbon layer, a second filter screen is arranged on the outer surface of the filter cotton layer, and the two ends of the first filter screen and the second filter screen are fixedly connected with the filter cartridge; A plurality of through holes are uniformly provided in the filter cartridge near the plug-in sleeve.

[0010] Preferably, the outer surface of the plug-in pipe inside the inlet pipe is fixedly connected with a sealing plug, and the sealing plug is matched with the inlet pipe.

[0011] Preferably, the linkage mechanism includes: a conveying pipe is fixedly connected to the bottom side of the booster pipe, the end of the conveying pipe away from the booster pipe is fixedly connected with a booster box, and the side of the booster box away from the conveying pipe is fixedly connected with a water outlet pipe; A first rotating shaft is arranged in the inside of the booster pipe, the outer surface of the first rotating shaft at the booster pipe is fixedly connected with a dragon blade, the bottom ends of the first rotating shaft penetrate the booster pipe and the motor box and extend to the motor, the motor is fixedly connected with the bottom plate, and the first rotating shaft is fixedly connected with the output end of the motor; The inside of the booster box is provided with an auxiliary mechanism for further improving water pressure.

[0012] Preferably, the auxiliary mechanism comprises: two second rotating shafts rotatably connected in the interior of the booster tank, outer surfaces of the second rotating shafts at the interior of the booster tank are fixedly connected with infusion gears, and the two infusion gears are matched with each other; bottom ends of the second rotating shafts penetrate through the booster tank and the motor box and extend to gears, the two gears are fixedly connected with the second rotating shafts, the two gears are meshed with each other, a bottom of one of the gears is provided with a first synchronous wheel, the first synchronous wheel is fixed to an outer surface of the second rotating shaft, the first synchronous wheel is connected with a second synchronous wheel through a synchronous belt, and the second synchronous wheel is fixed to an outer surface of the first rotating shaft.

[0013] Preferably, an outer surface of the first rotating shaft near the motor box is sleeved with a sealing ring, and the sealing ring is fixedly connected with the motor box.

[0014] Compared with the prior art, the building water supply and drainage engineering booster device has the following beneficial effects:

[0015] Firstly, the bottom plate, the motor box, the booster pipe, the mounting sleeve, the filter cartridge, the plug-in sleeve, the plug-in pipe, the water inlet pipe, the clamping mechanism and the filtering mechanism are cooperated, so that the user can conveniently and quickly replace the filter cartridge regularly, the problem that a large amount of impurities are adhered to the inside of the filter cartridge is avoided, the filtering effect of the filter cartridge on sewage is improved, and the problem that the inside of the filter screen bag of the existing building water supply and drainage engineering booster device is inconvenient to replace, and a large amount of impurities are adhered to the inside of the filter screen bag under the condition that the filter screen bag filters sewage for a long time, so that the filtering effect is reduced is solved.

[0016] Secondly, the bottom plate, the motor box, the booster pipe, the mounting sleeve, the filter cartridge, the plug-in sleeve, the plug-in pipe, the water inlet pipe and the booster mechanism are cooperated, so that the water supply and drainage can be boosted, the flow speed of the sewage is increased, the working efficiency of the water supply and drainage engineering is improved, and the problem that the existing building water supply and drainage engineering booster device does not have the function of boosting the water supply and drainage and the working efficiency of the water supply and drainage engineering is low is solved. ACCURACY

[0017] Figure 1 It is a three-dimensional structure schematic view of the building water supply and drainage engineering booster device of the utility model;

[0018] Figure 2 It is a side view sectional structure schematic view of the building water supply and drainage engineering booster device of the utility model;

[0019] Figure 3 It is a three-dimensional structure schematic view of the building water supply and drainage engineering booster device of the utility model; Figure 2 It is an enlarged structure schematic view of A in the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic view of the building water supply and drainage engineering booster device of the utility model;Figure 2 Amplification structure schematic view at B;

[0021] Figure 5 The internal structure schematic view of the booster tank of the utility model;

[0022] Figure 6 The linkage mechanism structure schematic view of the utility model.

[0023] In the figure:

[0024] 1, bottom plate; 2, motor box; 3, booster pipe; 4, mounting sleeve; 5, filter cartridge; 6, plug-in sleeve; 7, plug-in pipe; 8, water inlet pipe; 9, clamping mechanism; 10, filtering mechanism; 11, linkage mechanism; 12, steel ball; 13, extrusion ring; 14, connecting ring; 15, force ring; 16, spring; 17, movable groove; 18, clamping groove; 19, first filter screen; 20, activated carbon layer; 21, filter cotton layer; 22, second filter screen; 23, through hole; 24, sealing plug; 25, conveying pipe; 26, booster tank; 27, water outlet pipe; 28, first rotating shaft; 29, dragon blade; 30, motor; 31, auxiliary mechanism; 32, second rotating shaft; 33, infusion gear; 34, gear; 35, first synchronous wheel; 36, synchronous belt; 37, second synchronous wheel; 38, sealing ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1 to 6 The above technical solutions are described in detail by the following embodiments.

[0027] The utility model provides a kind of building water supply and drainage engineering booster unit, it includes: bottom plate 1;The top of bottom plate 1 is fixedly connected with motor box 2, the top side of motor box 2 is fixedly connected with booster pipe 3, the top of booster pipe 3 is fixedly connected with mounting sleeve 4, the top of mounting sleeve 4 is provided with filter cartridge 5, filter cartridge 5 is fixedly connected with plug-in sleeve 6 at mounting sleeve 4, plug-in sleeve 6 is provided with plug-in pipe 7 in the inside, plug-in pipe 7 is fixedly connected with filter cartridge 5, the outer surface of plug-in pipe 7 is equipped with inlet pipe 8, the end of inlet pipe 8 away from plug-in pipe 7 penetrates booster pipe 3 and extends to the outside of booster pipe 3;The inside of mounting sleeve 4 is provided with the clamping mechanism 9 of quick replacement to filter cartridge 5;The inside of filter cartridge 5 is provided with the filter mechanism 10 of adsorbing the impurity inside water;The bottom side of booster pipe 3 is provided with the linkage mechanism 11 of pressurizing drainage, user is connected with water source outside inlet pipe 8, water flows into the inside of filter cartridge 5 by inlet pipe 8, is transported to the inside of booster pipe 3 after being purified by filter mechanism 10 in the inside of filter cartridge 5 to sewage, finally pressurized delivery is carried out to water by linkage mechanism 11.

[0028] As Figure 4 The clamping mechanism 9 includes: the inside of mounting sleeve 4 is evenly provided with a plurality of ball grooves, the inside of ball groove is provided with steel ball 12, mounting sleeve 4 is slidably connected with extrusion ring 13 at steel ball 12, the outer surface of extrusion ring 13 is fixedly connected with connecting ring 14, the outer surface of connecting ring 14 is fixedly connected with force ring 15, the bottom of extrusion ring 13 is provided with spring 16, spring 16 is arranged in the inside of mounting sleeve 4;The inner wall of extrusion ring 13 is provided with movable slot 17, plug-in sleeve 6 is provided with clamping groove 18 at steel ball 12, movable slot 17 and clamping groove 18 are matched with steel ball 12, user pulls force ring 15, force ring 15 drives connecting ring 14, connecting ring 14 drives extrusion ring 13, so that movable slot 17 on extrusion ring 13 moves to ball groove to increase the activity range of steel ball 12, then pull out filter cartridge 5, so that the plug-in sleeve 6 at the bottom of filter cartridge 5 is separated from mounting sleeve 4, then replace filter cartridge 5, the plug-in sleeve 6 at the bottom of filter cartridge 5 is inserted into the inside of mounting sleeve 4 after being replaced, at the same time, plug-in pipe 7 is inserted into the inside of inlet pipe 8, loosen force ring 15, spring 16 generates elastic recovery, pushes extrusion ring 13 to move upwards, extrusion ring 13 drives movable slot 17 to separate from ball groove while extruding steel ball 12, so that a part of steel ball 12 enters the inside of clamping groove 18 on the surface of plug-in sleeve 6, to fix plug-in sleeve 6, it is convenient for user to replace filter cartridge 5 regularly, avoid that a large amount of impurities adhere to the inside of filter cartridge 5, improve the filtering effect of filter cartridge 5 to sewage, solve the problem that although the existing building water supply and drainage engineering booster unit can purify sewage, but its internal filter screen bag is inconvenient to replace, under the condition of long-term filtering of sewage, a large amount of impurities adhere to the inside of filter screen bag, cause the filtering effect to reduce.

[0029] As Figure 3 shown, the filter mechanism 10 comprises: the filter cartridge 5 is provided with a first filter screen 19 near the insertion pipe 7, the outer surface of the first filter screen 19 is provided with an activated carbon layer 20, the outer surface of the activated carbon layer 20 is provided with a filter cotton layer 21, the outer surface of the filter cotton layer 21 is provided with a second filter screen 22, both ends of the first filter screen 19 and the second filter screen 22 are fixedly connected with the filter cartridge 5; the filter cartridge 5 is uniformly provided with a plurality of through holes 23 near the insertion sleeve 6, sewage enters the inside of the insertion pipe 7 through the water inlet pipe 8, and then enters the inside of the filter cartridge 5 through the insertion pipe 7, the sewage entering the inside of the filter cartridge 5 is filtered through the first filter screen 19, the activated carbon layer 20, the filter cotton layer 21 and the second filter screen 22, and then enters the inside of the booster pipe 3 through the through hole 23, thereby improving the filtration effect of the sewage.

[0030] As Figure 2 shown, the outer surface of the insertion pipe 7 located inside the water inlet pipe 8 is fixedly connected with a sealing plug 24, the sealing plug 24 is matched with the water inlet pipe 8, thereby improving the sealing performance of the connection between the insertion pipe 7 and the water inlet pipe 8.

[0031] As Figure 6 shown, the linkage mechanism 11 comprises: a delivery pipe 25 is fixedly connected to one side of the bottom of the booster pipe 3, a booster tank 26 is fixedly connected to the end of the delivery pipe 25 away from the booster pipe 3, and a water outlet pipe 27 is fixedly connected to the side of the booster tank 26 away from the delivery pipe 25; a first rotating shaft 28 is arranged in the inside of the booster pipe 3, a dragon blade 29 is fixedly connected to the outer surface of the first rotating shaft 28 located at the booster pipe 3, the bottom ends of the first rotating shaft 28 penetrate through the booster pipe 3 and the motor box 2 and extend to the motor 30, the motor 30 is fixedly connected with the bottom plate 1, and the first rotating shaft 28 is fixedly connected with the output end of the motor 30; an auxiliary mechanism 31 for further improving water pressure is arranged in the inside of the booster tank 26, the motor 30 is started, the output end of the motor 30 drives the first rotating shaft 28 to rotate, the first rotating shaft 28 drives the dragon blade 29 to rotate at the same time, and the dragon blade 29 pressurizes water supply and drainage through the cooperation of the booster pipe 3.

[0032] As Figure 5 and Figure 6As shown, the auxiliary mechanism 31 comprises: two second rotating shafts 32 rotatably connected inside the booster box 26, the outer surfaces of the second rotating shafts 32 at the inside of the booster box 26 are fixedly connected with two infusion gear wheels 33, and the two infusion gear wheels 33 cooperate with each other; the bottom ends of the second rotating shafts 32 penetrate through the booster box 26 and the motor box 2 and extend to the gear wheels 34, the two gear wheels 34 are fixedly connected with the second rotating shafts 32 respectively, and the two gear wheels 34 mesh with each other, wherein the bottom of one of the gear wheels 34 is provided with a first synchronous wheel 35, the first synchronous wheel 35 is fixed to the outer surface of the second rotating shaft 32, the first synchronous wheel 35 is connected with a second synchronous wheel 37 through a synchronous belt 36, the second synchronous wheel 37 is fixed to the outer surface of the first rotating shaft 28, the first rotating shaft 28 rotates at the same time to drive the second synchronous wheel 37, the second synchronous wheel 37 drives the first synchronous wheel 35 through the synchronous belt 36, the first synchronous wheel 35 drives one of the second rotating shafts 32 to rotate at high speed, the two second rotating shafts 32 rotate in reverse directions synchronously through the cooperation of the gear wheels 34, the second rotating shafts 32 rotate to drive the infusion gear wheels 33 respectively, the two infusion gear wheels 33 further boost the water supply and drainage through the cooperation of the booster box 26, the water supply and drainage can be boosted, the flow speed of the sewage is increased, and thus the working efficiency of the water supply and drainage project is improved, and the problems that the existing booster device for building water supply and drainage project does not have the function of boosting the water supply and drainage and the working efficiency of the water supply and drainage project is low are solved.

[0033] As shown in the figure, Figure 2 The outer surface of the first rotating shaft 28 near the motor box 2 is sleeved with a sealing ring 38, the sealing ring 38 is fixedly connected with the motor box 2, and the sealing performance of the connection between the first rotating shaft 28 and the motor box 2 is improved.

[0034] Working principle: the user pulls the force ring 15, the force ring 15 drives the connecting ring 14, the connecting ring 14 drives the extrusion ring 13, so that the movable slot 17 on the extrusion ring 13 moves to the ball groove to increase the activity range of the steel ball 12, then pull out the filter cartridge 5, so that the plug-in sleeve 6 at the bottom of the filter cartridge 5 is separated from the mounting sleeve 4, then replace the filter cartridge 5, insert the plug-in sleeve 6 at the bottom of the replaced filter cartridge 5 into the inside of the mounting sleeve 4, insert the plug-in pipe 7 into the inside of the water inlet pipe 8, loosen the force ring 15, the spring 16 generates elastic recovery, pushes the extrusion ring 13 upwards, the extrusion ring 13 drives the movable slot 17 to separate from the ball groove while extruding the steel ball 12, so that a part of the steel ball 12 enters the clamping groove 18 on the surface of the plug-in sleeve 6, and the plug-in sleeve 6 is fixed. It is convenient for the user to regularly replace the filter cartridge 5, avoids the filter cartridge 5 inside adhering to a large amount of impurities, improves the filtering effect of the filter cartridge 5 on sewage, solves the problem that the existing building water supply and drainage engineering booster device can purify sewage, but the inside filter screen is inconvenient to replace, and a large amount of impurities adhere to the inside of the filter screen under long-term filtration of sewage, resulting in reduced filtering effect.

[0035] The motor 30 is started, the output end of the motor 30 drives the first rotating shaft 28 to rotate, the first rotating shaft 28 rotates while driving the dragon blade 29, the dragon blade 29 cooperates with the booster pipe 3 to pressurize the water supply and drainage, the first rotating shaft 28 rotates while driving the second synchronous wheel 37, the second synchronous wheel 37 drives the first synchronous wheel 35 through the synchronous belt 36, the first synchronous wheel 35 drives one of the second rotating shafts 32 to rotate at high speed, the two second rotating shafts 32 are synchronously and reversely rotated through the cooperation of the gear 34, the second rotating shafts 32 rotate while driving the infusion gears 33 respectively, and the two infusion gears 33 are further pressurized through the cooperation of the booster box 26. The water supply and drainage can be pressurized, the flow rate of the sewage is increased, and the working efficiency of the water supply and drainage engineering is improved, solving the problem that the existing building water supply and drainage engineering booster device does not have the function of pressurizing the water supply and drainage, and the working efficiency of the water supply and drainage engineering is low.

[0036] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A booster device for building water supply and drainage engineering, comprising: a bottom plate (1); characterized in that the top of the bottom plate (1) is fixedly connected with a motor box (2), one side of the top of the motor box (2) is fixedly connected with a booster pipe (3), the top of the booster pipe (3) is fixedly connected with a mounting sleeve (4), the top of the mounting sleeve (4) is provided with a filter cartridge (5), the filter cartridge (5) is fixedly connected with a plug-in sleeve (6) near the mounting sleeve (4), the inside of the plug-in sleeve (6) is provided with a plug-in pipe (7), the plug-in pipe (7) is fixedly connected with the filter cartridge (5), the outer surface of the plug-in pipe (7) is sleeved with a water inlet pipe (8), one end of the water inlet pipe (8) away from the plug-in pipe (7) penetrates through the booster pipe (3) and extends to the outside of the booster pipe (3); the inside of the mounting sleeve (4) is provided with a clamping mechanism (9) for quickly replacing the filter cartridge (5); the inside of the filter cartridge (5) is provided with a filtering mechanism (10) for adsorbing impurities in water; one side of the bottom of the booster pipe (3) is provided with a linkage mechanism (11) for boosting drainage.

2. The booster device for building water supply and drainage works according to claim 1, characterized in that: The clamping mechanism (9) comprises: a plurality of ball grooves are uniformly formed in the inside of the mounting sleeve (4), steel balls (12) are arranged in the inside of the ball grooves, an extrusion ring (13) is slidably connected to the mounting sleeve (4) near the steel balls (12), a connecting ring (14) is fixedly connected to the outer surface of the extrusion ring (13), a force applying ring (15) is fixedly connected to the outer surface of the connecting ring (14), a spring (16) is arranged at the bottom of the extrusion ring (13), and the spring (16) is arranged in the inside of the mounting sleeve (4); an active groove (17) is formed in the inner wall of the extrusion ring (13), a clamping groove (18) is formed in the plug-in sleeve (6) near the steel balls (12), and the active groove (17), the clamping groove (18) and the steel balls (12) are matched.

3. The booster device for building water supply and drainage works according to claim 1, characterized in that: The filtering mechanism (10) comprises: a first filter screen (19) is arranged at the plug-in pipe (7) of the filter cartridge (5), an activated carbon layer (20) is arranged on the outer surface of the first filter screen (19), a filter cotton layer (21) is arranged on the outer surface of the activated carbon layer (20), a second filter screen (22) is arranged on the outer surface of the filter cotton layer (21), and both ends of the first filter screen (19) and the second filter screen (22) are fixedly connected with the filter cartridge (5); a plurality of through holes (23) are uniformly formed in the plug-in sleeve (6) near the plug-in pipe (7).

4. The booster device for building water supply and drainage works according to claim 1, characterized in that: A sealing plug (24) is fixedly connected to the outer surface of the plug-in pipe (7) inside the water inlet pipe (8), and the sealing plug (24) is matched with the water inlet pipe (8).

5. The booster device for building water supply and drainage works according to claim 1, characterized in that: The linkage mechanism (11) comprises: The bottom side of the booster pipe (3) is fixedly connected with a conveying pipe (25), one end of the conveying pipe (25) away from the booster pipe (3) is fixedly connected with a booster tank (26), one side of the booster tank (26) away from the conveying pipe (25) is fixedly connected with a water outlet pipe (27); The inside of the booster pipe (3) is provided with a first rotating shaft (28), the outer surface of the first rotating shaft (28) at the booster pipe (3) is fixedly connected with a Jiaolong blade (29), the bottom end of the first rotating shaft (28) penetrates the booster pipe (3) and the motor box (2) and extends to the motor (30), the motor (30) is fixedly connected with the bottom plate (1), the first rotating shaft (28) is fixedly connected with the output end of the motor (30); The inside of the booster tank (26) is provided with an auxiliary mechanism (31) for further improving water pressure.

6. The booster device for building water supply and drainage works according to claim 5, characterized in that: The auxiliary mechanism (31) comprises: The inside of the booster tank (26) is rotatably connected with two second rotating shafts (32), the outer surface of the second rotating shaft (32) at the inside of the booster tank (26) is fixedly connected with a liquid feeding gear (33), two liquid feeding gears (33) cooperate with each other; The bottom end of the second rotating shaft (32) penetrates the booster tank (26) and the motor box (2) and extends to a gear (34), two gears (34) are fixedly connected with the second rotating shaft (32) respectively, two gears (34) are meshed with each other, one of the gears (34) is provided with a first synchronous wheel (35) at the bottom, the first synchronous wheel (35) is fixed to the outer surface of the second rotating shaft (32), the first synchronous wheel (35) is connected with a second synchronous wheel (37) through a synchronous belt (36), the second synchronous wheel (37) is fixed to the outer surface of the first rotating shaft (28).

7. The booster device for building water supply and drainage works according to claim 5, characterized in that: The outer surface of the first rotating shaft (28) near the motor box (2) is sleeved with a sealing ring (38), the sealing ring (38) is fixedly connected with the motor box (2).

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