Angle-adjustable axial flow pump device with machine lifting prevention function

Abstract

The utility model discloses an angle-adjustable axial flow pump device with a machine lifting prevention function, and relates to the technical field of axial flow pump devices. Comprising an axial flow pump body and a connecting rod, a first inserting groove is formed in the top end of the connecting rod, a second inserting groove is formed in the bottom end of the first inserting groove, two limiting grooves are formed in the side wall of the first inserting groove, a fixing shell is inserted into the first inserting groove, an inserting rod is fixed to the bottom end of the fixing shell, and a first moving block is slidably connected into the fixing shell. By rotating the threaded rod, the threaded rod drives the first moving block to move downwards, and the first moving block moves to drive the first fixing rod to move outwards, so that the first limiting block is driven to move out of the fixing shells and be inserted into the limiting groove; the corresponding threaded rods can be rotated, so that the first moving blocks move upwards, and the first springs drive the first fixing rods to move inwards, so that the first limiting blocks are driven to move into the fixing shell.

Description

Technical Field

[0001] This utility model relates to the technical field of axial flow pump devices, specifically an adjustable angle axial flow pump device with anti-lifting function. Background Technology

[0002] Axial flow pumps are pumps that use the force generated by the blades of a rotating impeller to transport liquid along the axial direction. They come in several types, including vertical, horizontal, inclined, and through-flow. The impeller of an axial flow pump has 2-7 blades and rotates within a cylindrical pump casing. Fixed guide vanes are mounted on the upper part of the pump casing to eliminate the rotational motion of the liquid, converting it into axial motion and transforming the kinetic energy of the rotational motion into pressure energy. However, currently, when an axial flow pump stops, the backflow of liquid in the pipeline causes the impeller to reverse, generating an upward water thrust. Under this force, the unit tends to lift upwards. When this force exceeds the weight of the pump, it will lift up. Therefore, an adjustable-angle axial flow pump device with anti-lift function is needed. An existing axial flow pump anti-lift device with an adjustable outlet angle (Announcement No.: CN211202388U) has the following disadvantages in use:

[0003] During use, the rotation of the second lead screw can cause the protrusion to rotate backward, causing the insertion rod to rebound under the elasticity of the telescopic spring, allowing the insertion post to return to the through groove for easy disassembly. However, since the first fixing rod is fixed to the base, if one of the first fixing rods and its bottom parts are damaged, the entire base and its parts need to be replaced, which is resource-intensive. Therefore, this patent proposes an adjustable angle axial flow pump device with anti-lifting function to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable angle axial flow pump device with anti-lifting function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable angle axial flow pump device with anti-lifting function, comprising an axial flow pump body and a connecting rod, a first slot at the top of the connecting rod, a second slot at the bottom of the first slot, two limiting grooves on the side wall of the first slot, a fixed shell inserted into the first slot, a rod fixed at the bottom of the fixed shell, a first moving block slidably connected inside the fixed shell, a threaded rod rotatably connected to the top of the first moving block, the threaded rod being screwed to the fixed shell, a first mounting groove on each of the inner walls of the fixed shell, a first fixed rod slidably connected in the first mounting groove, a first fixed plate fixed to the outer wall of the first fixed rod, a first spring fixed between the first fixed plate and the first mounting groove, the first fixed rod contacting the first moving block, a first limiting block fixed to the side of the first fixed rod away from the first moving block, the first limiting block penetrating the fixed shell and inserted into the limiting groove.

[0006] Preferably, a moving rod is fixed to the bottom end of the first moving block, and a second moving block is slidably connected inside the insert rod. The moving rod is fixed to the second moving block. A second mounting groove is provided on both inner walls of the insert rod. A second fixing rod is slidably connected in the second mounting groove. A second fixing plate is fixed to the outer wall of the second fixing rod. A second spring is fixed between the second fixing plate and the second mounting groove. A second limiting block is fixed to the side of the second fixing rod away from the second moving block. The second limiting block passes through the insert rod.

[0007] Preferably, the outer wall of the axial flow pump body is fixed with a first limiting plate and a second limiting plate, and a connecting member is fixed on the side of the connecting rod near the axial flow pump body, with a mounting hole provided on the connecting member.

[0008] Preferably, the outer wall of the insertion rod is provided with anti-slip grooves.

[0009] Preferably, a knob is fixed to the top of the threaded rod.

[0010] Preferably, a first connecting groove is provided inside the fixed shell, and a first fixing block is fixed at both ends of the first moving block. The first fixing block slides in the first connecting groove. A second connecting groove is provided inside the insert rod, and a second fixing block is fixed at both ends of the second moving block. The second fixing block slides in the second connecting groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By rotating the threaded rod, the first moving block moves downward, which in turn moves the first fixed rod outward, thereby causing the first limiting block to move out of the fixed housing and insert into the limiting groove. When one of the fixed housings and its internal parts are damaged, the corresponding threaded rod can be rotated to move the first moving block upward. The first spring then moves the first fixed rod inward, thereby causing the first limiting block to move into the fixed housing. After that, the corresponding fixed housing can be removed upward for replacement, without having to replace the entire connecting rod and all other components on it, thus saving materials. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the connecting rod structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the insertion rod structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the movable rod structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the first movable block structure of this utility model.

[0018] In the diagram: 1. Axial flow pump body; 2. Connecting rod; 3. First limiting plate; 4. Second limiting plate; 5. First slot; 6. Second slot; 7. Limiting groove; 8. Fixing shell; 9. Insert rod; 10. Anti-slip groove; 11. First limiting block; 12. Second limiting block; 13. Threaded rod; 14. First moving block; 15. Moving rod; 16. Second moving block; 17. First fixing rod; 18. First spring; 19. Second fixing rod; 20. Second spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Axial flow pumps are pumps that use the force generated by the blades of a rotating impeller to transport liquid along its axis. They come in several types, including vertical, horizontal, inclined, and through-flow. An axial flow pump impeller has 2-7 blades that rotate within a cylindrical pump casing. Fixed guide vanes are mounted on the upper part of the pump casing to eliminate the rotational motion of the liquid, converting it into axial motion and transforming the kinetic energy of the rotation into pressure energy. However, when an axial flow pump stops, the backflow of liquid in the pipeline causes the impeller to reverse, generating an upward water thrust. Under this force, the unit tends to lift upwards. When this force exceeds the weight of the pump, it will lift itself. Therefore, an adjustable-angle axial flow pump device with anti-lift function is needed.

[0021] like Figures 1-5As shown, this utility model provides a technical solution: an adjustable angle axial flow pump device with anti-lifting function, including an axial flow pump body 1 and a connecting rod 2. A first slot 5 is provided at the top of the connecting rod 2, and multiple first slots 5 can be provided according to actual use. A second slot 6 is provided at the bottom of the first slot 5. Two limiting grooves 7 are provided on the side wall of the first slot 5. A fixing shell 8 is inserted into the first slot 5, and a rod 9 is fixed at the bottom of the fixing shell 8. A first moving block 14 is slidably connected inside the fixing shell 8. A threaded rod 13 is rotatably connected to the top end, and the threaded rod 13 is screwed to the fixed shell 8. The inner walls on both sides of the fixed shell 8 are provided with first mounting grooves. A first fixed rod 17 is slidably connected in the first mounting groove. A first fixed plate is fixed to the outer wall of the first fixed rod 17. A first spring 18 is fixed between the first fixed plate and the first mounting groove. The first fixed rod 17 is in contact with the first moving block 14. A first limiting block 11 is fixed to the side of the first fixed rod 17 away from the first moving block 14. The first limiting block 11 penetrates the fixed shell 8 and is inserted into the limiting groove 7.

[0022] It should be noted that by rotating the threaded rod 13, the threaded rod 13 drives the first moving block 14 to move downward. The movement of the first moving block 14 drives the first fixed rod 17 to move outward, thereby driving the first limiting block 11 to move out of the fixed shell 8 and insert into the limiting groove 7. When one of the fixed shells 8 and its internal parts are damaged, the corresponding threaded rod 13 can be rotated to move the first moving block 14 upward. The first spring 18 drives the first fixed rod 17 to move inward, thereby driving the first limiting block 11 to move into the fixed shell 8. Then the corresponding fixed shell 8 can be taken out upward for replacement, without having to replace the entire connecting rod 2 and other parts on the connecting rod 2, thus saving materials.

[0023] like Figure 4 and Figure 5 As shown, a moving rod 15 is fixed to the bottom end of the first moving block 14. A second moving block 16 is slidably connected inside the insertion rod 9. The moving rod 15 is fixed to the second moving block 16. A second mounting groove is provided on both sides of the inner wall of the insertion rod 9. A second fixing rod 19 is slidably connected in the second mounting groove. A second fixing plate is fixed to the outer wall of the second fixing rod 19. A second spring 20 is fixed between the second fixing plate and the second mounting groove. A second limiting block 12 is fixed to the side of the second fixing rod 19 away from the second moving block 16. The second limiting block 12 passes through the insertion rod 9.

[0024] It should be noted that by inserting the rod 9 into the ground, the first moving block 14 moves downward, causing the moving rod 15 to move downward. The moving rod 15 moves downward, causing the second moving block 16 to move downward. The second moving block 16 moves downward, causing the second fixing rod 19 to move outward, so that the second limiting block 12 is inserted into the ground, allowing the device to be better fixed in the ground.

[0025] like Figure 1 and Figure 3 As shown, a first limiting plate 3 and a second limiting plate 4 are fixed to the outer wall of the axial flow pump body 1. A connector is fixed to the side of the connecting rod 2 near the axial flow pump body 1, and an installation hole is provided on the connector. An anti-slip groove 10 is provided on the outer wall of the insertion rod 9. A knob is fixed to the top of the threaded rod 13. A first connecting groove is provided inside the fixed shell 8. A first fixing block is fixed to both ends of the first moving block 14, and the first fixing block slides in the first connecting groove. A second connecting groove is provided inside the insertion rod 9. A second fixing block is fixed to both ends of the second moving block 16, and the second fixing block slides in the second connecting groove.

[0026] It is important to note that by installing bolts in the mounting holes between the connectors on the two connecting rods 2, the two connecting rods 2 are fixed to the outer wall of the axial flow pump body 1, and the insertion rod 9 is installed in the ground to prevent the axial flow pump from lifting. The axial flow pump body 1 can be adjusted in angle after shutdown. First, loosen the fixing nuts and positioning screws on the blades, then rotate the blades to the appropriate angle as needed. There will be angle markings on the blade hub, which can be used to determine the adjustment angle value. Finally, tighten the fixing nuts and positioning screws to complete the adjustment. The advantages of this method are simple structure and low cost.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. An adjustable-angle axial flow pump device with anti-lifting function, comprising an axial flow pump body (1) and a connecting rod (2), characterized in that: The top of the connecting rod (2) is provided with a first slot (5), the bottom of the first slot (5) is provided with a second slot (6), the side wall of the first slot (5) is provided with two limiting grooves (7), a fixed shell (8) is inserted into the first slot (5), the bottom of the fixed shell (8) is fixed with a plug rod (9), the inside of the fixed shell (8) is slidably connected with a first moving block (14), the top of the first moving block (14) is rotatably connected with a threaded rod (13), the threaded rod (13) is screwed to the fixed shell (8), the fixed shell (2) is slidably connected with a first moving block (14), the top of the first moving block (14) is rotatably connected with a threaded rod (13), the threaded rod (13) is screwed to the fixed shell (8), the fixed shell (2) is slidably connected with a second slot (6), the bottom of the first slot (5) is provided with a second slot (6), the side wall of the first slot (5) is provided with two limiting grooves (7), a fixed shell (2) is inserted into the first slot (5), the bottom of the fixed shell (2) is fixed with a plug rod (9 ... 8) has a first mounting groove on both sides of the inner wall. A first fixing rod (17) is slidably connected in the first mounting groove. A first fixing plate is fixed on the outer wall of the first fixing rod (17). A first spring (18) is fixed between the first fixing plate and the first mounting groove. The first fixing rod (17) is in contact with the first moving block (14). A first limiting block (11) is fixed on the side of the first fixing rod (17) away from the first moving block (14). The first limiting block (11) penetrates the fixing shell (8) and is inserted into the limiting groove (7).

2. The adjustable angle axial flow pump device with anti-lifting function according to claim 1, characterized in that: The bottom end of the first movable block (14) is fixed with a movable rod (15), and the inside of the insertion rod (9) is slidably connected with a second movable block (16). The movable rod (15) is fixed with the second movable block (16). The inner walls on both sides of the insertion rod (9) are provided with second mounting grooves. The second mounting groove is slidably connected with a second fixed rod (19). The outer wall of the second fixed rod (19) is fixed with a second fixed plate. The second fixed plate and the second mounting groove are fixed with a second spring (20). The side of the second fixed rod (19) away from the second movable block (16) is fixed with a second limiting block (12). The second limiting block (12) passes through the insertion rod (9).

3. The adjustable angle axial flow pump device with anti-lifting function according to claim 1, characterized in that: The outer wall of the axial flow pump body (1) is fixed with a first limiting plate (3) and a second limiting plate (4). A connecting rod (2) is fixed with a connecting piece on the side near the axial flow pump body (1), and the connecting piece has an installation hole.

4. The adjustable angle axial flow pump device with anti-lifting function according to claim 1, characterized in that: The outer wall of the insertion rod (9) is provided with anti-slip grooves (10).

5. An adjustable angle axial flow pump device with anti-lifting function according to claim 1, characterized in that: A knob is fixed to the top of the threaded rod (13).

6. The adjustable angle axial flow pump device with anti-lifting function according to claim 1, characterized in that: The fixed shell (8) has a first connecting groove, and the first fixed block is fixed at both ends of the first moving block (14). The first fixed block slides in the first connecting groove. The plug rod (9) has a second connecting groove, and the second fixed block is fixed at both ends of the second moving block (16). The second fixed block slides in the second connecting groove.

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