Three-tank type non-negative pressure water supply equipment

Abstract

The utility model discloses three-tank type non-negative pressure water supply equipment which comprises a first vertical frame, a second vertical frame and a base, the first vertical frame and the second vertical frame are evenly fixed to the two sides of the top end of the base, and placing plates are fixed between the first vertical frame and the second vertical frame. And a first tank body, a second tank body and a third tank body are sequentially placed at the top end of the placing plate. By arranging the limiting seats, the limiting seats are fixed on the two sides of the first vertical frame through the first supporting frame and the second supporting frame in the using process, the connecting pipes are placed in the pipe grooves, and the flange plates between the two sets of pipe bodies are aligned; and then the threaded rod is rotated, and the limiting plate is driven to move downwards to make contact with the top of the connecting pipe under the threaded connection effect between the threaded rod and the threaded groove, so that the connecting pipe is limited and fixed, a worker can fix the connecting pipe conveniently after butt joint, the time and labor of manual lifting are reduced, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of three-tank negative pressure-free water supply equipment, and particularly to a three-tank negative pressure-free water supply equipment. Background Technology

[0002] Negative pressure-free water supply equipment is a type of pressurized water supply unit that connects directly to the municipal water supply network. It uses the residual pressure of the municipal network to create a superimposed pressure system, ensuring that the municipal network pressure is not less than a set protection pressure (the set pressure must be higher than the pressure requirement of the direct supply area of ​​the residential community, generally not less than 1.2 kg). The core of this superimposed pressure (negative pressure-free) water supply equipment is how to prevent negative pressure from being generated during the operation of the secondary pressurized water supply system, eliminating the impact of the unit's operation on the municipal network, and achieving safe, reliable, and stable water supply without affecting the water use of nearby users. Negative pressure-free water supply equipment is also known as a superimposed pressure water supply system. The market mainly offers tank-type and box-type negative pressure-free water supply equipment. Existing negative pressure-free water supply equipment comes in one-tank, two-tank, and three-tank configurations. A one-tank system is the traditional negative pressure-free equipment; a two-tank system moves the outlet pressure tank to the rear; and a three-tank system adds a booster pump to the two-tank system, allowing the third tank to maintain a higher pressure and providing better pressure maintenance at low flow rates.

[0003] Chinese Patent Publication No. CN 214530908 U discloses a three-tank negative pressure-free water supply device, including a base. Tanks are mounted on the base via a support mechanism. The support mechanism includes parallel support frames, each with a base plate. Support plates are parallel to each other at both ends of the base plate. Grooves are provided along the vertical direction on opposite sides of the support plates. Mounting plates, with one end extending into the other groove and used to support the tanks, are hinged at intervals in one groove. A stop block is provided in the other groove to support the mounting plate. This structure allows the mounting plate to rotate above the stop block in the other groove, making the mounting plate horizontal to support the tanks; it also allows the mounting plate to rotate into one groove for storage, facilitating the sequential installation of the tanks onto the support mechanism.

[0004] The existing technical solution has the following shortcomings: When using the technical solution, because its three-tank structure is arranged vertically, when connecting the tank and the pipeline, the operator needs to hold the pipeline and connect it to the tank while keeping it in a raised position. This is inconvenient, time-consuming and labor-intensive when operating the tank, which is located at a high position. There is room for optimization. Therefore, it is necessary to design a three-tank negative pressure-free water supply equipment to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a three-tank negative pressure water supply device to solve the problem mentioned in the background art of inconvenience in auxiliary limiting when connecting the tank and the pipeline.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-tank negative pressure-free water supply device, comprising a first support frame, a second support frame, and a base, wherein the first support frame and the second support frame are evenly fixed on both sides of the top of the base;

[0007] A placement plate is fixed between the first and second uprights, and a first tank, a second tank, and a third tank are placed sequentially on the top of the placement plate. A flange is fixed to one side of each of the first, second, and third tanks. An installation groove is evenly provided on one side of the first upright, and an installation block is snapped into the inside of the installation groove. A connecting block is fixed to the outside of each installation block, and a second support frame is fixed to the outside of each connecting block. A first support frame is fixed to the top of each second support frame, and a limit seat is fixed to the top of each first support frame. A threaded groove is provided inside the limit seat, and a threaded rod is threaded into the threaded groove. A limit plate is connected to the bottom end of the threaded rod. A pipe groove is provided inside the limit seat, and a connecting pipe is placed inside the pipe groove.

[0008] Preferably, the bottom end of each placement plate is welded with reinforcing ribs, and the cross-section of each reinforcing rib is triangular.

[0009] Preferably, the width of the mounting block matches the width of the mounting groove, and both the mounting block and the mounting groove have convex cross-sections.

[0010] Preferably, each of the first uprights has screw holes inside, and each screw hole is threadedly connected to a bolt by a connecting block and a mounting block.

[0011] Preferably, guide blocks are fixed on both sides of the limiting plate, and guide grooves are provided on both sides inside the limiting seat, and the guide grooves are connected to the guide blocks.

[0012] Preferably, the width of the guide groove is matched with the width of the guide block, and the guide groove and the guide block are symmetrically arranged about the central axis of the limiting plate.

[0013] Preferably, the cross-section of the pipe groove is arc-shaped, and the inner side of the pipe groove is provided with anti-slip texture.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the three-tank negative pressure-free water supply equipment realizes the function of easy connection;

[0015] By setting up a limiting seat, during use, it is fixed on both sides of the first upright frame through the first and second support frames. The connecting pipe is placed into the pipe groove, and the flanges between the two sets of pipes are aligned. Then, the threaded rod is rotated, and under the action of the threaded connection with the threaded groove, the limiting plate is moved down to contact the top of the connecting pipe, thus limiting and fixing the connecting pipe. This facilitates the fixing of the pipe after docking by the staff, thereby reducing the time and labor of manual lifting and improving work efficiency. At the same time, by setting up installation blocks and installation grooves, they are arranged vertically in sequence on the first upright frame during use. The combination of different heights can realize the connection between the tank and the connecting pipe at different positions. After installation, the installation blocks can be further reinforced by connecting with bolts and screw holes, thus facilitating subsequent docking operations. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a side view of the structure of this utility model;

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a top view sectional structural diagram of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of the connecting block of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the limiting seat of this utility model.

[0022] The following are the annotations in the diagram: 1. First upright; 2. Second upright; 3. First tank; 4. Placement plate; 5. Limiting seat; 6. First support frame; 7. Second support frame; 8. Mounting block; 9. Mounting groove; 10. Flange; 11. Base; 12. Connecting pipe; 13. Connecting block; 14. Threaded rod; 15. Threaded hole; 16. Threaded groove; 17. Guide groove; 18. Guide block; 19. Pipe groove; 20. Limiting plate; 21. Second tank; 22. Third tank; 23. Bolt. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Please see Figures 1-5 One embodiment of this utility model is a three-tank negative pressure water supply device, which includes a first support frame 1, a second support frame 2 and a base 11.

[0025] The first upright 1 is provided with screw holes 15 inside, and the screw holes 15 are all connected to bolts 23 by connecting blocks 13 and mounting blocks 8 through threads.

[0026] Specifically, such as Figure 2 and Figure 4 As shown, during use, the bolts 23 and screw holes 15 can be used to further reinforce the mounting block 8 after it is engaged.

[0027] The first upright 1 and the second upright 2 are evenly fixed on both sides of the top of the base 11, and a placement plate 4 is fixed between the first upright 1 and the second upright 2.

[0028] The bottom of the placement plate 4 is welded with reinforcing ribs, and the cross-section of the reinforcing ribs is triangular.

[0029] Specifically, such as Figure 1 As shown, during use, the reinforcing ribs can improve the support and reinforcement effect of the placement plate 4;

[0030] The top of the placement plate 4 is successively placed with the first tank 3, the second tank 21 and the third tank 22. A flange 10 is fixed on one side of each of the first tank 3, the second tank 21 and the third tank 22. An installation groove 9 is evenly arranged on one side of the first stand 1, and an installation block 8 is snapped into the inside of the installation groove 9.

[0031] The width of the mounting block 8 matches the width of the mounting groove 9, and both the mounting block 8 and the mounting groove 9 have convex cross-sections.

[0032] Specifically, such as Figure 1 As shown, during use, setting it to be convex can improve the tightness of the connection between the mounting block 8 and the mounting groove 9;

[0033] A connecting block 13 is fixed to the outer side of the mounting block 8, and a second support frame 7 is fixed to the outer side of the connecting block 13. A first support frame 6 is fixed to the top of the second support frame 7. A limit seat 5 is fixed to the top of the first support frame 6. A threaded groove 16 is provided inside the limit seat 5. A threaded rod 14 is threadedly connected inside the threaded groove 16. A limit plate 20 is connected to the bottom end of the threaded rod 14.

[0034] Guide blocks 18 are fixed on both sides of the limiting plate 20, and guide grooves 17 are provided on both sides inside the limiting seat 5. The guide grooves 17 are connected to the guide blocks 18. The width of the guide grooves 17 matches the width of the guide blocks 18. The guide grooves 17 and the guide blocks 18 are symmetrically arranged about the central axis of the limiting plate 20.

[0035] Specifically, such as Figure 5 As shown, during use, the guide block 18 and guide groove 17 can be used to guide and limit the lifting and lowering of the limit plate 20.

[0036] The limiting seat 5 has a tube groove 19 inside;

[0037] The cross-section of the tube groove 19 is arc-shaped, and the inner side of the tube groove 19 is provided with anti-slip texture.

[0038] Specifically, such as Figure 5 As shown, the anti-slip texture can improve the anti-slip effect when the connecting pipe 12 is placed during use;

[0039] Furthermore, a connecting pipe 12 is placed inside the pipe groove 19.

[0040] Working principle: In use, the mounting slots 9 are arranged vertically on the first support 1, and different height combinations can achieve the connection between the tank and the connecting pipe 12 at different positions. After the mounting block 8 and the mounting slot 9 are connected, the mounting block 8 can be further reinforced by connecting the bolts 23 and the screw holes 15. Then, the connecting pipe 12 is placed into the pipe slot 19 and the flanges 10 between the two sets of pipes are aligned. Then, the threaded rod 14 is rotated and the limiting plate 20 is moved down to contact the top of the connecting pipe 12 under the action of the threaded connection with the threaded slot 16, that is, the connecting pipe 12 is limited and fixed, which makes it convenient for the staff to fix after docking, thereby reducing the time and labor of manual lifting and improving work efficiency.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A three-tank negative pressure water supply device, comprising a first upright (1), a second upright (2) and a base (11), wherein the first upright (1) and the second upright (2) are evenly fixed on both sides of the top of the base (11). Its features are: A placement plate (4) is fixed between the first upright (1) and the second upright (2), and a first tank (3), a second tank (21) and a third tank (22) are placed sequentially on the top of the placement plate (4). A flange (10) is fixed on one side of each of the first tank (3), the second tank (21) and the third tank (22). A mounting groove (9) is evenly provided on one side of the first upright (1), and a mounting block (8) is snapped into the inside of the mounting groove (9). A connecting block (13) is fixed on the outside of each mounting block (8), and the connecting block (13) is connected to the mounting plate (22). A second support frame (7) is fixed on the outer side of the connecting block (13). A first support frame (6) is fixed on the top of the second support frame (7). A limit seat (5) is fixed on the top of the first support frame (6). A threaded groove (16) is provided inside the limit seat (5). A threaded rod (14) is threaded inside the threaded groove (16). A limit plate (20) is connected to the bottom end of the threaded rod (14). A pipe groove (19) is provided inside the limit seat (5). A connecting pipe (12) is placed inside the pipe groove (19).

2. The three-tank negative pressure-free water supply equipment according to claim 1, characterized in that: The bottom end of each of the placement plates (4) is welded with reinforcing ribs, and the cross-section of each reinforcing rib is triangular.

3. The three-tank negative pressure-free water supply equipment according to claim 1, characterized in that: The width of the mounting block (8) matches the width of the mounting groove (9), and both the mounting block (8) and the mounting groove (9) have convex cross-sections.

4. A three-tank negative pressure-free water supply device according to claim 1, characterized in that: The first support frame (1) is provided with screw holes (15) inside, and the screw holes (15) are all connected to bolts (23) by connecting blocks (13) and mounting blocks (8).

5. A three-tank negative pressure-free water supply device according to claim 1, characterized in that: Guide blocks (18) are fixed on both sides of the limiting plate (20), and guide grooves (17) are provided on both sides inside the limiting seat (5), and the guide grooves (17) are connected to the guide blocks (18).

6. A three-tank negative pressure-free water supply device according to claim 5, characterized in that: The width of the guide groove (17) is matched with the width of the guide block (18), and the guide groove (17) and the guide block (18) are symmetrically arranged about the central axis of the limiting plate (20).

7. A three-tank negative pressure-free water supply device according to claim 1, characterized in that: The cross-section of the groove (19) is arc-shaped, and the inner side of the groove (19) is provided with anti-slip texture.

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