Pressurizing water supply device for building fire-fighting facility engineering

Abstract

The invention discloses a pressurizing water supply device for building fire-fighting facility engineering, and relates to the technical field of building fire fighting, the pressurizing water supply device comprises a double-shaft motor and two sets of pump bodies, and the two sets of pump bodies are connected to the two sides of the double-shaft motor. In the aspect of water supply continuity, the design that the double-shaft motor drives the two sets of pump bodies is adopted, when one set of pump body needs to be overhauled, the other set of pump body can be rapidly switched to continue pressurizing water supply, long-time shutdown caused by impeller maintenance is effectively avoided, it is ensured that building fire fighting water can be continuously supplied at the critical moment, and the service life of the building fire fighting water is prolonged. The capacity of a building for coping with emergencies such as fire disasters is greatly enhanced, maintenance convenience is achieved, switching of the pump body and disassembly and maintenance of the impeller can be easily achieved only by simply operating the adjusting rod, the locking cap and other components, operation is convenient and efficient, maintenance difficulty and time cost are reduced, rapid recovery and stable operation of a fire fighting water supply system are guaranteed, and the service life of the fire fighting water supply system is prolonged. Reliable equipment support is provided for building fire safety, and the overall performance and practicability of fire-fighting equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building fire protection, and particularly to a pressurized water supply device for building fire protection facilities engineering. Background Art

[0002] In modern buildings, fire safety is always of utmost importance, and a stable and efficient fire protection pressurized water supply device is one of the key equipment to ensure fire safety. In the existing building fire protection pressurized water supply devices in the current technology, their working principle is mainly to generate power by means of a motor to drive the impeller in the pump body to rotate at a high speed. Through the rotation of the impeller, a pressure difference is formed in the pump body for water, so as to pressurize the water and transport it to the required place to meet the fire extinguishing and other related water use requirements of building fire protection.

[0003] However, usually, such water pumps are only equipped with a single set of impellers. This single impeller undertakes the heavy responsibility of the entire pressurized water supply. Once the impeller is worn out, the components are damaged due to long-term operation, or it needs to be repaired for various other reasons, the entire water supply system has to stop supplying water and enter a shutdown state, because in the case of only one set of impellers, it is impossible to carry out effective repair operations without stopping the water supply.

[0004] This shutdown caused by impeller repair has many adverse effects on building fire protection pressurized water supply. During the relatively long shutdown repair period, the fire protection water in the building cannot be supplied in a timely and continuous manner, which undoubtedly greatly weakens the building's ability to respond to emergencies such as fires. Moreover, after the repair is completed and the system is restarted to resume pressurized water supply, the entire process involves a series of operations such as equipment debugging and re-establishment of pressure, which is not only time-consuming and laborious, but also inevitably interrupts the normal water supply process of building fire protection to a certain extent. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a pressurized water supply device for building fire protection facilities engineering, so as to solve the technical problem that the existing water pumps often have only one set of impellers, resulting in the need to stop the water supply and shut down for repair when this set of water pump impellers needs to be repaired, and continue the pressurized water supply operation after the repair is completed, which to a certain extent affects the building fire protection pressurized water supply.

[0006] To achieve the above object, the present invention provides the following technical solution: A pressurized water supply device for building fire protection facilities engineering, including a double-shaft motor and two sets of pump bodies. The pump body is composed of a pump casing, an impeller, a connecting pipe, and a pump cover.

[0007] An impeller is rotatably connected between the pump casing and the pump cover. Two sets of connecting pipes are arranged at the top and bottom of one end of the pump casing and are communicated with the inside of the pump casing. Output shafts are fixed to both output ends of the double-shaft motor, and a first keyway is provided inside the output shaft. A second keyway corresponding to the first keyway is provided inside the impeller;

[0008] A connection key is arranged between one set of the output shaft, the first keyway of the impeller and the second keyway. A locking cap is arranged on one side of one set of the pump covers. A connecting rod extending into the locking cap is fixed to one side of the connection key;

[0009] An annular sliding groove matching with the connecting rod is provided inside the locking cap. Internal threads are provided on the inner wall of the center of the pump cover, and external threads matching with the internal threads are provided on the outer wall of the locking cap;

[0010] Guide sliding rods are fixed to the top and bottom of one end between the two sets of pump casings. Both sides of the two sets of guide sliding rods are fixedly connected to the pump casing through fixed connecting plates, and the fixed connecting plates are threadedly connected to the pump casing and the guide sliding rods through bolts;

[0011] A water supply adjusting mechanism slidingly connected to the guide sliding rod is arranged at one end of one set of the pump bodies. The water supply adjusting mechanism includes a water supply pipe, a guide sliding ring, a fixed rod, a clamping ring, a spring and an adjusting rod. Guide sliding rings slidingly connected to the guide sliding rods are fixed to both the top and bottom of the fixed rod, and water supply pipes are fixed to both the top and bottom of the fixed rod. The inner ends of the two sets of water supply pipes are elastically connected with a clamping ring through a spring;

[0012] The pump body further includes a clamping groove, and the clamping ring extends into the clamping groove. An adjusting rod located at the inner end of the fixed rod is fixed between the two sets of clamping rings;

[0013] The water supply adjusting mechanism further includes a corrugated pipe. Both ends of the corrugated pipe are respectively fixedly connected to the water supply pipe and the clamping ring, and the corrugated pipe is located outside the spring. The water supply adjusting mechanism further includes a flange. The flange is fixed to the outer end face of the water supply pipe, and the water supply pipe is connected to a water delivery pipe through the flange, and a flange is fixedly arranged on the end face of the water delivery pipe.

[0014] By adopting the above technical solutions, in terms of water supply continuity, a design of using a dual-axis motor to drive two groups of pump bodies is adopted. When one group of pump bodies needs to be repaired, it can be quickly switched to the other group of pump bodies to continue pressurized water supply, effectively avoiding long-term shutdowns caused by impeller repairs, ensuring that the building's fire-fighting water can be continuously supplied at critical moments, greatly enhancing the building's ability to respond to emergencies such as fires. In terms of maintenance convenience, its unique structural design enables simple operations on components such as the adjustment rod and locking cap during maintenance, easily achieving the switching of pump bodies and the disassembly and repair of impellers. The operation is convenient and efficient, reducing the maintenance difficulty and time cost, ensuring the rapid recovery and stable operation of the fire-fighting water supply system, providing reliable equipment support for building fire safety, and improving the overall performance and practicality of fire-fighting facilities.

[0015] Further, support seats are fixed at the bottom of the dual-axis motor and the two groups of pump bodies, and mounting holes are provided at both ends of the support seats. The mounting holes are fixedly connected to the external equipment frame through bolts.

[0016] By adopting the above technical solutions, the bottom of the dual-axis motor is fixedly connected to the support seat through bolts, ensuring the stability of the motor during operation. At the same time, the mounting holes on the support seat facilitate the fixed connection to the external equipment frame.

[0017] Further, lifting rings are fixed on both sides of the top of the dual-axis motor, and the lifting rings are connected by ropes to facilitate the lifting by external lifting equipment.

[0018] By adopting the above technical solutions, the lifting rings are made of high-strength alloy steel and strengthened through heat treatment, facilitating the lifting installation and maintenance operations of external lifting equipment.

[0019] In summary, the present invention mainly has the following beneficial effects: In terms of water supply continuity, the present invention adopts a design of using a dual-axis motor to drive two groups of pump bodies. When one group of pump bodies needs to be repaired, it can be quickly switched to the other group of pump bodies to continue pressurized water supply, effectively avoiding long-term shutdowns caused by impeller repairs, ensuring that the building's fire-fighting water can be continuously supplied at critical moments, greatly enhancing the building's ability to respond to emergencies such as fires. In terms of maintenance convenience, its unique structural design enables simple operations on components such as the adjustment rod and locking cap during maintenance, easily achieving the switching of pump bodies and the disassembly and repair of impellers. The operation is convenient and efficient, reducing the maintenance difficulty and time cost, ensuring the rapid recovery and stable operation of the fire-fighting water supply system, providing reliable equipment support for building fire safety, and improving the overall performance and practicality of fire-fighting facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the structural decomposition diagram of the whole of the present invention;

[0021] Figure 2 is the present inventionFigure 1 Enlarged view of part A;

[0022] Figure 3 First perspective structural schematic diagram of the whole of the present invention;

[0023] Figure 4 Partial structural schematic diagram of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged view of part B;

[0025] Figure 6 Enlarged view of part of the structure of the present invention;

[0026] Figure 7 Exploded view of the structure of the pump body of the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged view of part C;

[0028] Figure 9 Second perspective structural schematic diagram of the whole of the present invention.

[0029] In the figure: 1, double-shaft motor; 101, output shaft; 102, first keyway; 2, pump body; 201, pump casing; 202, impeller; 203, connecting pipe; 204, engaging groove; 205, pump cover; 206, second keyway; 207, internal thread; 3, guiding slide bar; 4, fixed connecting plate; 5, water supply regulating mechanism; 501, water supply pipe; 502, guiding sliding ring; 503, fixed rod; 504, engaging ring; 505, spring; 506, regulating rod; 507, flange; 508, corrugated pipe; 6, water delivery pipe; 7, connecting key; 8, connecting rod; 9, locking cap; 10, annular sliding groove; 11, support seat; 12, lifting ring. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0031] Next, the embodiments of the present invention will be described according to the overall structure of the present invention.

[0032] Embodiment 1

[0033] A pressurized water supply device for a building fire protection facilities project, as Figures 1-9As shown in the figure, it is mainly composed of components such as a double-shaft motor 1, two groups of pump bodies 2, guide slide rods 3, fixed connecting plates 4, a water supply regulating mechanism 5, a water delivery pipe 6, a connecting key 7, a connecting rod 8, a locking cap 9, an annular chute 10, a support seat 11, and a lifting ring 12;

[0034] The double-shaft motor 1 uses an energy-efficient motor, which has good stability and overload capacity and can adapt to the high-load requirements of fire-fighting water supply. Output shafts 101 are fixed at both output ends of the double-shaft motor 1. A first keyway 102 is opened inside the output shaft 101, and the dimensional accuracy of the first keyway 102 is controlled within ±0.05 mm to ensure the tight fit and reliable transmission of the connecting key 7;

[0035] The bottom of the double-shaft motor 1 is fixedly connected to the support seat 11 by bolts to ensure the stability of the motor during operation. At the same time, lifting rings 12 are fixed on both sides of the top of the double-shaft motor 1. The lifting rings 12 are made of high-strength alloy steel and are strengthened by heat treatment, which is convenient for the hoisting installation and maintenance operations of external hoisting equipment;

[0036] The pump body 2 is composed of a pump casing 201, an impeller 202, a communicating pipe 203, and a pump cover 205. The pump casing 201 is made of cast iron and has good pressure resistance and corrosion resistance, and can withstand the high pressure of fire-fighting water supply. The impeller 202 is made of stainless steel and is precision-cast and dynamically balanced to ensure stability during high-speed rotation. A second keyway 206 corresponding to the first keyway 102 is opened inside the impeller 202, and the surface roughness of the keyway reaches below Ra0.8 to ensure the high efficiency of the connecting key 7 in transmitting torque;

[0037] The pump casing 201 and the pump cover 205 are connected by multiple groups of bolts. The gasket is made of high-temperature and high-pressure resistant rubber material to ensure the sealing performance of the pump body 2. Two groups of communicating pipes 203 are arranged at the top and bottom of one end of the pump casing 201 and are connected to the inside of the pump casing 201. Their pipe diameters are designed according to the fire-fighting water supply flow requirements to ensure smooth water flow;

[0038] Guide slide rods 3 are fixed at the top and bottom of one end between the two groups of pump casings 201. The guide slide rods 3 are made of high-strength alloy steel and their surfaces are quenched and ground, having good wear resistance and guiding accuracy;

[0039] Both sides of the guide slide rod 3 are fixedly connected to the pump casing 201 through the fixed connecting plate 4. The fixed connecting plate 4 is threadedly connected to the pump casing 201 and the guide slide rod 3 by bolts to ensure firm and reliable connection and prevent loosening during equipment operation and water supply regulation;

[0040] The fixed connection plate 4 is made of steel plate and is processed numerically to ensure close fit with the pump casing 201 and the guiding slide bar 3. Its shape is designed according to the installation positions of the pump casing 201 and the guiding slide bar 3, with good structural strength, capable of effectively dispersing the force and enhancing the stability of the whole device;

[0041] The water supply regulating mechanism 5 includes a water supply pipe 501, a guiding slide ring 502, a fixed rod 503, a clamping ring 504, a spring 505, an adjusting rod 506, a corrugated pipe 508 and a flange 507. Guiding slide rings 502 which are slidably connected with the guiding slide bar 3 are fixed at the top and bottom of the fixed rod 503. The clearance between the inner hole and the guiding slide bar 3 is controlled between 0.1 - 0.2 mm to ensure smooth sliding and no obvious shaking;

[0042] Water supply pipes 501 are fixed at the top and bottom of the fixed rod 503. The water supply pipes 501 are made of galvanized steel pipes, capable of withstanding a certain pressure. The inner wall is treated against corrosion to ensure that the water supply quality is not polluted;

[0043] The inner ends of two groups of water supply pipes 501 are elastically connected with a clamping ring 504 through a spring 505. The spring 505 is made of stainless steel and can provide stable elastic force. The pump body 2 also includes a clamping groove 204, and the clamping ring 504 extends into the interior of the clamping groove 204. The depth and width of the clamping groove 204 match those of the clamping ring 504 to ensure tight clamping;

[0044] Both ends of the corrugated pipe 508 are fixedly connected with the water supply pipe 501 and the clamping ring 504 respectively, and the corrugated pipe 508 is located outside the spring 505. The corrugated pipe 508 is made of stainless steel, with good flexibility and corrosion resistance, capable of effectively protecting the spring 505 and the internal structure, preventing water erosion and impurity entry, and at the same time not affecting the overall pressurized water supply process. The adjusting rod 506 is located at the inner end of the fixed rod 503 and is used for manually operating and adjusting the position of the clamping ring 504. Its length is designed according to the distance between two groups of pump bodies 2 to facilitate the operation of the staff;

[0045] The flange 507 is fixed on the outer end face of the water supply pipe 501, and the water supply pipe 501 is connected with a water delivery pipe 6 through the flange 507. And a flange 507 is fixedly arranged on the end face of the water delivery pipe 6. The specifications of the flange 507 conform to the national standards, and the sealing surface adopts a flat or male - female surface form and is connected by bolts to ensure the sealing performance and reliability of the connection and prevent water leakage;

[0046] When one set of pump bodies 2 needs to be repaired after long-term use, first perform a short-term shutdown operation on the double-shaft motor 1. The staff manually holds the adjusting rod 506 and moves the adjusting rod 506 in the direction close to the fixed rod 503. At this time, the top and bottom of the adjusting rod 506 drive the two sets of engaging rings 504 to move outward against the elastic force of the spring 505, so that the engaging rings 504 are disengaged from the connection of the communicating pipe 203 and are removed from the inside of the engaging groove 204;

[0047] During this process, the corrugated pipe 508 is passively contracted. After the two sets of engaging rings 504 are disengaged from the engaging groove 204, the staff continues to manually move the adjusting rod 506 and the fixed rod 503 horizontally, so that the two guiding sliding rings 502 of the fixed rod 503 move along the guiding slide rod 3 to the position of the other set of pump bodies 2. At this time, the water supply adjusting mechanism 5 and the two sets of water delivery pipes 6 move synchronously. During the movement, pay attention to keeping it stable to avoid collision and damage to the components;

[0048] When the water supply adjusting mechanism 5 moves to the designated position, that is, when the two sets of engaging rings 504 reach the engaging groove 204 of the other set of pump bodies 2, the staff slowly releases the adjusting rod 506. Under the reset action of the spring 505, the engaging rings 504 are inserted into the inside of the engaging groove 204 of the other set of pump bodies 2 again to ensure tight engagement;

[0049] Then the staff performs a loosening operation on the locking cap 9. Since the connecting rod 8 and the annular sliding groove 10 of the locking cap 9 are in a sliding limit connection, during the loosening process, after the locking cap 9 is disengaged from the pump cover 205, the connecting key 7 can be pulled out through the connecting rod 8, so that the connecting key 7 is disengaged from the limit connection of the first key groove 102 and the second key groove 206. At this time, the impeller 202 of the pump body 2 to be repaired will no longer rotate with the rotation of the double-shaft motor 1;

[0050] Insert the removed locking cap 9, connecting rod 8 and connecting key 7 into the other set of pump bodies 2 again, so that the connecting key 7 is inserted between the corresponding first key groove 102 and the second key groove 206 of the other set of pump bodies 2, and then tighten the locking cap 9 to ensure a tight threaded connection with the pump cover 205. At this time, the double-shaft motor 1 can drive the impeller 202 of the other set of pump bodies 2 to rotate for pressurized water supply operation.

[0051] The working principle of the present invention is: when in use, the double-shaft motor 1 is connected to an external power supply device through a power cord, and then the double-shaft motor 1 drives the impeller 202 to rotate through the output shaft 101;

[0052] Specifically, the water supply adjusting mechanism 5 includes two sets of water supply pipes 501. The two sets of water supply pipes 501 are respectively communicated with the two sets of water delivery pipes 6 through flange plates 507. One of the two sets of water delivery pipes 6 is an inlet pipe and the other is an outlet pipe. Thus, pressurized water supply operation during building fire fighting construction can be realized;

[0053] Furthermore, a set of impellers 202 are connected to both output shafts 101 of the dual-axis motor 1. First, the water supply regulating mechanism 5 is connected to one of the pump bodies 2. At this time, the locking cap 9 inserts the connection key 7 into the first keyway 102 and the second keyway 206 through the connecting rod 8. Then, the output shaft 101 of the dual-axis motor 1 only drives one set of impellers 202 to rotate, realizing the pressurized water supply operation;

[0054] When maintenance is required for one of the pump bodies 2 after long-term use, the dual-axis motor 1 is shut down for a short time. At this time, the staff manually moves the adjusting rod 506, making the adjusting rod 506 move towards the fixed rod 503. Then, the top and bottom of the adjusting rod 506 drive the two engaging rings 504 to disengage from the connection of the communicating pipe 203, and the engaging rings 504 are moved out of the engaging grooves 204;

[0055] At this time, the two springs 505 are squeezed to a certain extent, and the bellows 508 is passively contracted. After the two engaging rings 504 disengage from the engaging grooves 204, the staff continues to manually move the adjusting rod 506 and the fixed rod 503 horizontally, so that the two guiding slip rings 502 of the hanging rod 503 move along the guiding rod 3 to the position of the other pump body 2. At this time, the water supply regulating mechanism 5 and the two water pipes 6 move synchronously;

[0056] When the water supply regulating mechanism 5 moves to the designated position, that is, when the two engaging rings 504 reach the engaging grooves 204 of the other pump body 2 in sequence, the staff releases the adjusting rod 506. Then, under the reset action of the spring 505, the engaging rings 504 are inserted into the engaging grooves 204 of the other pump body 2 again;

[0057] Then, the staff loosens the locking cap 9. Since the locking cap 9 of the connecting rod 8 is slidably and limit-connected to the annular chute 10, after the locking cap 9 disengages from the pump cover 205, the locking cap 9 can pull out the connection key 7 through the connecting rod 8. That is to say, at this time, the connection key 7 disengages from the limit connection of the first keyway 102 and the second keyway 206. Then, the impeller 202 of the pump body 2 to be maintained will no longer rotate with the rotation of the dual-axis motor 1;

[0058] Insert the removed locking cap 9, connecting rod 8, and connection key 7 into the other pump body 2 again, making the connection key 7 inserted between the corresponding first keyway 102 and the second keyway 206 of the other pump body 2. Then, the dual-axis motor 1 can drive the impeller 202 of the other pump body 2 to rotate for pressurized water supply operation;

[0059] Specifically, at this time, the locking cap 9 and the other set of pump covers 205 are connected by threads to ensure the stability of the overall connection. Among them, the pump covers 205 and the pump housing 201 are connected by multiple groups of bolts. Therefore, during maintenance, only by opening the pump cover 205 relative to the pump housing 201 can the internal impeller 202 be taken out for maintenance operations;

[0060] As can be seen from the above, by alternately driving the two sets of pump bodies 2 with a set of dual-axis motors 1, it is possible to effectively replace one set of pump bodies 2 with the other set quickly when one set of pump bodies 2 needs to be maintained, so that it can perform pressurized water supply operations, effectively avoiding the problem that the fire water in the building cannot be supplied in a timely and continuous manner during a long-term shutdown for maintenance. The overall use effect is good.

[0061] Although the embodiments of the present invention have been shown and described, the specific embodiments are only explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations without creative contributions to the embodiments according to needs, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A pressurized water supply device for building fire protection facilities engineering, comprising a dual-shaft motor (1) and two sets of pump bodies (2), characterized in that: Two groups of pump bodies (2) are connected to both sides of the dual-axis motor (1), and the pump body (2) is composed of a pump casing (201), an impeller (202), a connecting pipe (203), and a pump cover (205); A guide slide bar (3) is fixed to the top and bottom of one end between the two groups of pump casings (201); a water supply regulating mechanism (5) slidably connected to the guide slide bar (3) is provided at one end of one group of pump bodies (2); the water supply regulating mechanism (5) comprises a water supply pipe (501), a guide slide ring (502), a fixing rod (503), a snap ring (504), a spring (505) and an regulating rod (506); a guide slide ring (502) slidably connected to the guide slide bar (3) is fixed to the top and bottom of the fixing rod (503); a water supply pipe (501) is fixed to the top and bottom of the fixing rod (503); and the inner ends of the two groups of water supply pipes (501) are elastically connected to the snap ring (504) via a spring (505); The pump body (2) further comprises a snap-fit ​​groove (204), and the snap-fit ​​ring (504) extends into the interior of the snap-fit ​​groove (204), and an adjustment rod (506) located at the inner end of the fixing rod (503) is fixed between the two sets of snap-fit ​​rings (504).

2. The pressurized water supply device for building fire protection facility engineering according to claim 1 is characterized in that: An impeller (202) is rotatably connected between the pump casing (201) and the pump cover (205), and two groups of connecting pipes (203) are arranged at the top and bottom of one end of the pump casing (201) and are connected to the inside of the pump casing (201).

3. The pressurized water supply device for building fire protection facility engineering according to claim 1 is characterized in that: An output shaft (101) is fixed to the output ends on both sides of the dual-shaft motor (1), a first key slot (102) is provided inside the output shaft (101), and a second key slot (206) corresponding to the first key slot (102) is provided inside the impeller (202).

4. The pressurized water supply device for building fire protection facility engineering according to claim 3 is characterized in that: A connecting key (7) is provided between one group of the output shaft (101), the first keyway (102) and the second keyway (206) of the impeller (202); a locking cap (9) is provided on one side of one group of the pump cover (205); and a connecting rod (8) extending into the interior of the locking cap (9) is fixed on one side of the connecting key (7).

5. The pressurized water supply device for building fire protection facility engineering according to claim 4 is characterized in that: The locking cap (9) is provided with an annular sliding groove (10) which matches the connecting rod (8), the central inner wall of the pump cover (205) is provided with an internal thread (207), and the outer wall of the locking cap (9) is provided with an external thread which matches the internal thread (207).

6. The pressurized water supply device for building fire protection facility engineering according to claim 1 is characterized in that: Both sides of the two groups of guide slide bars (3) are fixedly connected via a fixed connection plate (4) and a pump casing (201), and the fixed connection plate (4), the pump casing (201) and the guide slide bars (3) are all connected via bolt threads.

7. The pressurized water supply device for building fire protection facility engineering according to claim 1 is characterized in that: The water supply regulating mechanism (5) further comprises a bellows (508), the two ends of which are respectively fixedly connected to the water supply pipe (501) and the snap ring (504), and the bellows (508) is located outside the spring (505).

8. The pressurized water supply device for building fire protection facility engineering according to claim 1 is characterized in that: The water supply regulating mechanism (5) further comprises a flange (507), wherein the flange (507) is fixed to the outer end surface of the water supply pipe (501), and the water supply pipe (501) is connected to the water delivery pipe (6) via the flange (507), and the flange (507) is fixedly provided on the end surface of the water delivery pipe (6).

9. The pressurized water supply device for building fire protection facility engineering according to claim 1 is characterized in that: A support base (11) is fixed to the bottom of the dual-axis motor (1) and the two sets of pump bodies (2), and mounting holes are provided at both ends of the support base (11), wherein the mounting holes are fixedly connected to an external equipment frame by bolts.

10. The pressurized water supply device for building fire protection facility engineering according to claim 1, characterized in that: Lifting rings (12) are fixed to both sides of the top of the dual-axis motor (1), and the lifting rings (12) are connected by ropes to facilitate the lifting of external lifting equipment.

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