High-suction low-noise gear pump

Abstract

The utility model discloses a high-suction low-noise gear pump, which relates to the technical field of gear pumps and comprises a pump body, a first sound insulation box is detachably mounted on one side of the pump body, a second sound insulation box is detachably mounted on the other side of the pump body, and the opposite sides of the first sound insulation box and the second sound insulation box are attached to each other. A connecting structure is arranged between the first sound insulation box and the second sound insulation box, a user sleeves the two sides of the pump body with the first sound insulation box and the second sound insulation box correspondingly, a connecting rod on one side of the first sound insulation box penetrates through the second sound insulation box to be inserted into a mounting sleeve, and the user rotates a double-thread screw sleeve to enable the pump body to rotate. The two double-thread screw sleeves synchronously rotate under the action of the transmission chain wheel and the transmission chain, and the limiting blocks are matched with the limiting grooves, so that the threaded clamping rods move towards the two sides along with rotation of the double-thread screw sleeves under the action of threads, and the threaded clamping rods are inserted into the mounting sleeves and connected with clamping holes of the connecting rods in a clamped mode; therefore, the first sound insulation box and the second sound insulation box can be quickly mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of gear pumps, in particular to a high-suction-lift and low-noise gear pump. Background Art

[0002] A gear pump is a rotary pump that relies on the change and movement of the working volume created between the pump cylinder and meshing gears to transport or increase pressure. Two gears, a pump body, and front and rear covers form two enclosed chambers. As the gears rotate, the volume of the chamber on the disengaged side expands, creating a vacuum that draws the liquid in. The volume of the chamber on the meshing side decreases, squeezing the liquid into the pipeline. The suction and discharge chambers are separated by the meshing line of the two gears. The pressure at the discharge port of a gear pump is entirely dependent on the resistance at the pump outlet.

[0003] After searching, a low-noise gear pump with publication number CN213655119U was disclosed, which includes a silencer cover and a gear pump. The gear pump is installed inside the silencer cover, and the inner wall of the silencer cover is provided with silencer cotton. The side wall of the silencer cover is provided with a plurality of shock-absorbing devices. The shock-absorbing devices pass through the side wall of the silencer cover and contact the surface of the gear pump. The shock-absorbing devices are threadedly connected to the silencer cover and are used to reduce vibration of the gear pump. A liquid inlet pipe and a liquid outlet pipe are provided on the side of the gear pump. The provided shock-absorbing devices can not only fix the position of the gear pump, but also reduce the vibration generated by the gear pump during operation, thereby reducing the generation of noise.

[0004] Existing low-noise gear pumps reduce noise by setting up an external sound insulation box. However, this sound insulation box is mostly fixed to the outside of the pump body with mounting bolts and mounting nuts, which makes the installation and removal of the sound insulation box very inconvenient, reduces the maintenance of the pump body, and the existing gear pump is easily affected by the entry of impurities, thereby reducing the operation of the pump body and reducing the efficiency of the pump body. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a high suction head and low noise gear pump, which solves the problem that the existing low noise gear pump reduces the noise emission by setting an external sound insulation box. However, this sound insulation box is mostly fixed to the outside of the pump body with mounting bolts and mounting nuts, which makes the installation and disassembly of the sound insulation box very inconvenient, reduces the maintenance of the pump body, and the existing gear pump is easily affected by the entry of impurities, thereby reducing the operation of the pump body and the problem of reduced pump efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high suction and low noise gear pump, comprising a pump body, a first sound insulation box is detachably installed on one side of the pump body, and a second sound insulation box is detachably installed on the other side of the pump body, the first sound insulation box is fitted with the opposite side of the second sound insulation box, a connecting structure is provided between the first sound insulation box and the second sound insulation box, a water outlet pipe is provided on one side of the pump body, a water inlet pipe is provided on the other side of the pump body, and a filtering structure is provided at one end of the water inlet pipe.

[0007] Preferably, the connection structure includes a mounting sleeve, which is fixedly mounted at both ends of one side of the second sound insulation box. A connecting rod is movably inserted into the interior of the mounting sleeve, and one end of the connecting rod passes through the second sound insulation box and is fixedly connected to the first sound insulation box.

[0008] Preferably, a clamping hole is provided at one end of the connecting rod, and through holes are provided on opposite sides of the two mounting sleeves. A double-thread screw sleeve is rotatably installed between the two mounting sleeves, and both ends of the double-thread screw sleeve are respectively connected to the through holes on both sides.

[0009] Preferably, the two double-thread screw sleeves are connected to each other through a transmission sprocket and a transmission chain, and threaded clamping rods are movably inserted into both ends of the double-thread screw sleeve, and one end of the threaded clamping rod passes through the through hole and is inserted into the interior of the clamping hole.

[0010] Preferably, limiting blocks are provided on both sides of the through hole, limiting grooves are provided on both sides of the threaded clamping rod, and one end of the limiting block is movably inserted into the limiting groove.

[0011] The filtering structure includes a filter cartridge, which is fixedly installed at one end of the water inlet pipe, a filter cartridge movably inserted into one end of the filter cartridge, an assembly ring installed at one end of the filter cartridge, and a connecting pipe detachably installed on one side of the assembly ring.

[0012] Preferably, a first valve is installed on the surface of the water inlet pipe, a slag discharge pipe is inserted into the lower end of the filter cylinder, the slag discharge pipe is L-shaped, one end of the slag discharge pipe is inserted into the interior of the filter cylinder, and a second valve is provided at the lower end of the slag discharge pipe.

[0013] Preferably, a mounting ring is fixedly installed on one end of the connecting pipe, a mounting bolt is fixedly installed on one side of the mounting ring, one end of the mounting bolt passes through one end of the filter cylinder and the assembly ring in sequence, a mounting sleeve is rotatably installed on one side of the assembly ring, the mounting bolt is movably inserted into the interior of the mounting sleeve, a mounting gear is provided on the outside of the mounting sleeve, a rotating gear ring is rotatably installed on the outside of the filter cylinder, and the rotating gear ring is engaged with the mounting gear.

[0014] The utility model provides a high suction and low noise gear pump, which has the following advantages compared with the prior art:

[0015] For this type of high suction and low noise gear pump, the user puts the first sound insulation box and the second sound insulation box on both sides of the pump body respectively, and the connecting rod on one side of the first sound insulation box passes through the second sound insulation box and is inserted into the interior of the installation sleeve. The user rotates the double-thread screw sleeve, and the two double-thread screw sleeves rotate synchronously under the action of the transmission sprocket and the transmission chain. The limit block and the limit groove cooperate so that the threaded clamping rod moves to both sides as the double-thread screw sleeve rotates under the action of the thread, so that the threaded clamping rod is inserted into the interior of the installation sleeve and engages with the clamping hole of the connecting rod, thereby facilitating the rapid installation and disassembly of the first and second sound insulation boxes.

[0016] This type of high suction and low noise gear pump can filter impurities in the liquid under the action of the filter cartridge to avoid affecting the internal structure of the pump body. When the filter cartridge is blocked, the first valve is closed and the second valve is opened, so that the impurities inside the filter cartridge can be discharged through the discharge pipe, avoiding blockage of the filter cartridge and affecting the flow of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the surface structure of the device of the present utility model;

[0018] Figure 2 This is a schematic diagram of the pump structure in the device of the utility model;

[0019] Figure 3 This is a schematic diagram of the side structure of the device of the present utility model;

[0020] Figure 4 For this utility model Figure 3 A in the middle is an enlarged structural diagram;

[0021] Figure 5 This is a half-section structural diagram of the water inlet pipe installation location in the device of the present invention;

[0022] Figure 6 For this utility model Figure 5 Enlarged structural diagram at point B in the middle.

[0023] In the figure: 1. Pump body; 2. First sound insulation box; 3. Second sound insulation box; 4. Water outlet pipe; 5. Water inlet pipe; 6. First valve; 7. Filter cartridge; 8. Connecting pipe; 9. Mounting sleeve; 10. Double-thread screw sleeve; 11. Connecting rod; 12. Threaded clamping rod; 13. Limit block; 14. Limit groove; 15. Slag discharge pipe; 16. Second valve; 17. Filter cartridge; 18. Assembly ring; 19. Mounting ring; 20. Mounting bolt; 21. Mounting screw sleeve; 22. Mounting gear; 23. Rotating gear ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figures 1 to 4 , a high suction head and low noise gear pump includes a pump body 1, a first sound insulation box 2 is detachably installed on one side of the pump body 1, and a second sound insulation box 3 is detachably installed on the other side of the pump body 1. The first sound insulation box 2 fits against the side opposite to the second sound insulation box 3. A connecting structure is provided between the first sound insulation box 2 and the second sound insulation box 3. The connecting structure includes a mounting sleeve 9, which is fixedly mounted on both ends of one side of the second sound insulation box 3. A connecting rod 11 is movably inserted into the interior of the mounting sleeve 9. One end of the connecting rod 11 passes through the second sound insulation box 3 and is fixedly connected to the first sound insulation box 2. A clip is provided at one end of the connecting rod 11. Hole, two mounting sleeves 9 are provided with perforations on opposite sides, and a double-thread screw sleeve 10 is rotatably installed between the two mounting sleeves 9. The two ends of the double-thread screw sleeve 10 are respectively connected to the perforations on both sides, and the two double-thread screw sleeves 10 are connected to each other through a transmission sprocket and a transmission chain. A threaded clamping rod 12 is movably inserted into both ends of the double-thread screw sleeve 10, and one end of the threaded clamping rod 12 passes through the perforation and is inserted into the interior of the clamping hole. A limiting block 13 is provided on both sides of the inside of the perforation, and a limiting groove 14 is provided on both sides of the threaded clamping rod 12. One end of the limiting block 13 is movably inserted into the interior of the limiting groove 14;

[0026] In this embodiment, the user respectively puts the first sound insulation box 2 and the second sound insulation box 3 on both sides of the pump body 1, and the connecting rod 11 on one side of the first sound insulation box 2 passes through the second sound insulation box 3 and is inserted into the interior of the installation sleeve 9. The user rotates the double-thread screw sleeve 10, and the two double-thread screw sleeves 10 rotate synchronously under the action of the transmission sprocket and the transmission chain. The limit block 13 and the limit groove 14 cooperate so that the threaded clamping rod 12 moves to both sides as the double-thread screw sleeve 10 rotates under the action of the thread, so that the threaded clamping rod 12 is inserted into the interior of the installation sleeve 9 and is engaged with the clamping hole of the connecting rod 11, thereby facilitating the rapid installation and disassembly of the first sound insulation box 2 and the second sound insulation box 3.

[0027] See also Figures 1 to 5, high suction lift and low noise gear pump, a water outlet pipe 4 is provided on one side of the pump body 1, and a water inlet pipe 5 is provided on the other side of the pump body 1, and a filtering structure is provided at one end of the water inlet pipe 5, which includes a filter cartridge 7, which is fixedly mounted on one end of the water inlet pipe 5, and a filter screen cartridge 17 is movably inserted into one end of the filter cartridge 7, and an assembly ring 18 is installed at one end of the filter cartridge 7, and a connecting pipe 8 is detachably installed on one side of the assembly ring 18, and a first valve 6 is installed on the surface of the water inlet pipe 5, and a slag discharge pipe 15 is inserted into the lower end of the filter cartridge 7, and the slag discharge pipe 15 is L-shaped, and one end of the slag discharge pipe 15 is inserted into the inside of the filter screen cartridge 17, and a second valve 16 is provided at the lower end of the slag discharge pipe 15,

[0028] In this embodiment, under the action of the filter cylinder 17, impurities in the liquid can be filtered to avoid affecting the internal structure of the pump body 1. When the filter cylinder 17 is blocked, the first valve 6 is closed and the second valve 16 is opened, so that the impurities inside the filter cylinder 17 can be discharged through the slag discharge pipe 15, avoiding the filter cylinder 17 from being blocked and affecting the flow of the liquid.

[0029] See also Figures 5 and 6 , high suction lift and low noise gear pump, one end of the connecting pipe 8 is fixedly installed with a mounting ring 19, one side of the mounting ring 19 is fixedly installed with a mounting bolt 20, one end of the mounting bolt 20 passes through one end of the filter cylinder 17 and the assembly ring 18 in sequence, one side of the assembly ring 18 is rotatably installed with a mounting screw sleeve 21, the mounting bolt 20 is movably inserted into the interior of the mounting screw sleeve 21, the outer side of the mounting screw sleeve 21 is provided with a mounting gear 22, the outer side of the filter cylinder 7 is rotatably installed with a rotating gear ring 23, and the rotating gear ring 23 is meshed with the mounting gear 22;

[0030] In this embodiment, the user rotates the rotating gear ring 23, and the rotating gear ring 23 drives the mounting gear 22 to rotate, and the mounting gear 22 drives the mounting screw sleeve 21 to rotate. Under the action of the thread, the mounting bolt 20 moves to one side as the mounting screw sleeve 21 rotates, so that the mounting bolt 20 can be pulled out from the inside of the mounting screw sleeve 21, allowing the connecting pipe 8 and the filter cartridge 7 to be quickly disassembled and installed, which facilitates the maintenance of the filter cartridge 17.

[0031] At the same time, the contents not described in detail in this specification belong to the existing technology well known to those skilled in the art.

Claims

1. A high suction lift and low noise gear pump, comprising a pump body (1), characterized in that: A first sound insulation box (2) is detachably mounted on one side of the pump body (1), and a second sound insulation box (3) is detachably mounted on the other side of the pump body (1). The first sound insulation box (2) is fitted to the side opposite to the second sound insulation box (3). A connecting structure is provided between the first sound insulation box (2) and the second sound insulation box (3). A water outlet pipe (4) is provided on one side of the pump body (1), and a water inlet pipe (5) is provided on the other side of the pump body (1). A filtering structure is provided at one end of the water inlet pipe (5).

2. The high suction lift and low noise gear pump according to claim 1, characterized in that: The connection structure comprises a mounting sleeve (9), wherein the mounting sleeve (9) is fixedly mounted at both ends of one side of the second sound insulation box (3), a connecting rod (11) is movably inserted into the interior of the mounting sleeve (9), and one end of the connecting rod (11) passes through the second sound insulation box (3) and is fixedly connected to the first sound insulation box (2).

3. The high suction lift and low noise gear pump according to claim 2, characterized in that: A clamping hole is provided at one end of the connecting rod (11), and through holes are provided on opposite sides of the two mounting sleeves (9). A double-thread screw sleeve (10) is rotatably mounted between the two mounting sleeves (9), and both ends of the double-thread screw sleeve (10) are respectively connected to the through holes on both sides.

4. The high suction lift and low noise gear pump according to claim 3, characterized in that: The two double-thread screw sleeves (10) are connected to each other through a transmission sprocket and a transmission chain. Threaded clamping rods (12) are movably inserted through both ends of the double-thread screw sleeve (10), and one end of the threaded clamping rod (12) passes through the through hole and is inserted into the inside of the clamping hole.

5. The high suction lift and low noise gear pump according to claim 4, characterized in that: Limiting blocks (13) are provided on both sides of the through hole, limiting grooves (14) are provided on both sides of the threaded clamping rod (12), and one end of the limiting block (13) is movably inserted into the limiting groove (14).

6. The high suction lift and low noise gear pump according to claim 1, characterized in that: The filtering structure comprises a filter cartridge (7), the filter cartridge (7) being fixedly mounted on one end of a water inlet pipe (5), a filter screen cartridge (17) being movably inserted through one end of the filter cartridge (7), an assembly ring (18) being mounted on one end of the filter cartridge (7), and a connecting pipe (8) being detachably mounted on one side of the assembly ring (18).

7. The high suction lift and low noise gear pump according to claim 6, characterized in that: A first valve (6) is installed on the surface of the water inlet pipe (5), and a slag discharge pipe (15) is inserted into the lower end of the filter cylinder (7). The slag discharge pipe (15) is L-shaped, and one end of the slag discharge pipe (15) is inserted into the interior of the filter cylinder (17). A second valve (16) is provided at the lower end of the slag discharge pipe (15).

8. The high suction lift and low noise gear pump according to claim 7, characterized in that: A mounting ring (19) is fixedly mounted on one end of the connecting pipe (8), a mounting bolt (20) is fixedly mounted on one side of the mounting ring (19), one end of the mounting bolt (20) passes through one end of the filter cylinder (17) and the assembly ring (18) in sequence, a mounting screw sleeve (21) is rotatably mounted on one side of the assembly ring (18), the mounting bolt (20) is movably inserted into the interior of the mounting screw sleeve (21), a mounting gear (22) is provided on the outside of the mounting screw sleeve (21), a rotating gear ring (23) is rotatably mounted on the outside of the filter cylinder (7), and the rotating gear ring (23) is meshed with the mounting gear (22).

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