Internal gear pump

Abstract

The utility model relates to the technical field of gear pumps, in particular to an internal gear pump which comprises a gear pump body and further comprises a base, a gear shaft, a gear shaft and a gear shaft, the protection mechanism is arranged on the base and comprises a box body, the box body is fixedly connected to the base, dust, liquid and the like can be conveniently shielded through cooperation of the box body and a box cover, the dust, the liquid and the like are prevented from falling on the gear pump body, heat dissipation can be conveniently conducted on the interior of the box body through cooperation of a draught fan, an air pipe and the like, and the service life of the gear pump body is prolonged. According to the gear pump, the air guide cover and the air guide opening can be conveniently matched, air can be blown to the gear pump body in a large area, the heat dissipation effect is improved, a dustproof net, an air pipe and the like can be conveniently matched, dust, liquid and the like are shielded, the gear pump body is effectively protected, the protection performance of the gear pump body is improved, and the service life of the gear pump body is prolonged. And through cooperation of a sliding plate, a limiting block, a bidirectional threaded shaft and the like, rapid mounting and dismounting of the gear pump body are conveniently achieved, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of gear pump technology, specifically to an internal meshing gear pump. Background Art

[0002] With industrial development, the application range of internal gear pumps is becoming increasingly wide. Internal gear pumps are commonly used hydraulic pumps (hydraulic power components) in hydraulic systems, and are devices that convert mechanical energy into fluid pressure energy. Internal gear pumps utilize the principle of internal gear meshing. The driving inner rotor on the main shaft drives the inner and outer rotors to rotate in the same direction. At the liquid inlet, the gears separate to create a negative pressure, drawing in liquid. At the liquid outlet, the gears continuously engage and mesh, squeezing the liquid out.

[0003] Existing gear pumps are often directly exposed to the air during use, resulting in poor protection. Dust, powder, and liquid can easily fall onto the gear pump, potentially causing these contaminants to enter the gear transmission system and affect the pump. Furthermore, existing gear pumps have poor heat dissipation, which can reduce their service life over time. Therefore, we propose an internal meshing gear pump. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an internal gear pump to solve the problems mentioned in the background art. Existing technologies are often directly exposed to the air, have poor protection, and are prone to dust, liquids, etc. falling on the gear pump, which may lead to dust, liquids, etc. entering the gear transmission system and affecting the gear pump. In addition, existing gear pumps also have poor heat dissipation, which will reduce the service life of the gear pump in the long run.

[0006] (2) Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an internal gear pump, comprising a gear pump body, and further comprising:

[0008] A base, wherein multiple mounting holes are provided on the base;

[0009] A protective mechanism is provided, which is mounted on a base. The protective mechanism includes a housing, which is fixedly connected to the base. A cover is rotatably connected to the housing, and multiple latches are installed between the cover and the housing. An installation mechanism is provided on the housing, and the gear pump body is mounted on the installation mechanism. Two pipe openings are provided on the housing, and two air ducts are connected to the housing. A fan is installed inside the air duct, and a placement port is provided on the air duct. A dustproof net is slidably connected to the placement port. An air guide hood is fixedly connected inside the housing and is connected to one of the air ducts. The air guide hood has multiple air guide ports, which are used to protect the gear pump body.

[0010] A limiting mechanism is installed on the air duct and is used to limit the position of the dustproof net.

[0011] Preferably, the installation mechanism includes a slide groove and an opening, both of which are formed on the housing. A slide plate is slidably connected in the slide groove, and a baffle is provided in the opening. The baffle is fixedly connected to the slide plate, and the gear pump body is fixedly installed on the slide plate. Four limiting grooves are formed in the slide groove, and four fixed blocks are fixedly connected to the slide plate. The four fixed blocks are arranged in pairs, and a bidirectional threaded shaft is rotatably connected between two fixed blocks. One end of the bidirectional threaded shaft passes through one of the fixed blocks and is fixedly connected to an adjusting knob. A second slide groove is formed on the slide plate, and two limiting blocks are slidably connected in the second slide groove. The limiting blocks pass through the second slide groove and extend into the limiting groove. A connecting block is fixedly connected to the limiting block, and both connecting blocks are threadedly connected to the bidirectional threaded shaft for convenient installation or disassembly of the gear pump body.

[0012] Furthermore, the limiting mechanism includes a slide groove three, which is fixedly connected to the air duct. A stop block is slidably connected inside the slide groove three. A spring is provided between the slide groove three and the stop block. A control block is fixedly connected to the stop block. The control block extends through the slide groove three through a control port to limit the position of the dustproof net.

[0013] Furthermore, handles are fixedly connected to the box lid, dustproof net, and baffle, and an observation window is provided on the box lid.

[0014] Furthermore, a sealing ring is provided inside the pipe opening.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides an internal gear pump, which has the following advantages:

[0017] This internal gear pump, through the cooperation of the housing and cover, facilitates the protection of dust and liquids, preventing them from falling onto the pump body. The fan and ductwork facilitate heat dissipation from the interior of the housing. The air guide shroud and air vents work together to direct airflow over a large area onto the pump body, improving heat dissipation. The dust filter and ductwork further protect the pump body from dust and liquids, enhancing its protection and lifespan. The sliding plate, limit blocks, and bidirectional threaded shaft facilitate quick installation and disassembly of the pump body, improving its practicality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present application;

[0019] Figure 2 This is a three-dimensional structural diagram of the box lid in the open state of this application;

[0020] Figure 3 This is a partial cross-sectional view of the three-dimensional structure of this application;

[0021] Figure 4 This is a three-dimensional structural diagram of the dustproof net, fan, and other components used in this application.

[0022] Figure 5 For this application Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0023] In the diagram: 1. Gear pump body; 2. Base; 3. Housing; 4. Housing cover; 5. Hook and loop lock; 6. Air duct; 7. Fan; 8. Dustproof net; 9. Air guide cover; 10. Slide plate; 11. Baffle; 12. Fixed block; 13. Two-way threaded shaft; 14. Adjusting knob; 15. Limit block; 16. Connecting block; 17. Stop block; 18. Spring; 19. Control block; 20. Observation window; 21. Sealing 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] Example

[0026] Please see Figures 1-5 An internal gear pump includes a gear pump body 1, and further includes:

[0027] Base 2, with multiple mounting holes provided on it;

[0028] The protective mechanism is mounted on the base 2 and includes a housing 3, which is fixedly connected to the base 2. A cover 4 is rotatably connected to the housing 3, and multiple latches 5 are installed between the cover 4 and the housing 3. An installation mechanism is provided on the housing 3, and the gear pump body 1 is mounted on the installation mechanism. Two pipe openings are provided on the housing 3, and two air ducts 6 are connected to the housing 3. A fan 7 is installed inside the air duct 6, and a placement opening is provided on the air duct 6. A dustproof net 8 is slidably connected inside the placement opening. An air guide shroud 9 is fixedly connected inside the housing 3. A duct 6 is connected to the gear pump body 1. The air guide shroud 9 has multiple air vents. It should be noted that one of the two fans 7 is used to blow air into the housing 3, and the air guide shroud 9 and air vents are used to guide the air so that the air blows onto the gear pump body 1 over a large area. The other fan is used to draw out the air from the housing 3 to make the air flow and remove the heat from the gear pump body 1. The dustproof net 8 is used to filter dust and particulate matter. The duct 6 is used to block liquid. The housing cover 4 and housing 3 are used to block dust and liquid, preventing dust or liquid from falling onto the gear pump body 1.

[0029] A limiting mechanism is installed on the air duct 6. The limiting mechanism includes a slide groove three, which is fixedly connected to the air duct 6. A stop block 17 is slidably connected inside the slide groove three. A spring 18 is provided between the slide groove three and the stop block 17. A control block 19 is fixedly connected to the stop block 17. The control block 19 extends out of the slide groove three through a control port. The stop block 17 is used to limit the dustproof net 8, the spring 18 is used to provide elastic force, and the control block 19 is used to control the movement of the stop block 17.

[0030] Preferably, the mounting mechanism includes a slide groove and an opening, both of which are formed on the housing 3. A slide plate 10 is slidably connected in the slide groove, and a baffle 11 is provided in the opening. The baffle 11 is fixedly connected to the slide plate 10. The gear pump body 1 is fixedly mounted on the slide plate 10. Four limiting grooves are provided in the slide groove, and four fixed blocks 12 are fixedly connected to the slide plate 10. The four fixed blocks 12 are arranged in pairs, and a bidirectional threaded shaft 13 is rotatably connected between two fixed blocks 12. One end of the bidirectional threaded shaft 13 passes through one of the fixed blocks 12. Block 12 is fixedly connected to an adjustment knob 14. A slide groove 2 is provided on the slide plate 10. Two limit blocks 15 are slidably connected in the slide groove 2. The limit blocks 15 pass through the slide groove 2 and extend into the limit groove. A connecting block 16 is fixedly connected to the limit block 15. Both connecting blocks 16 are threadedly connected to the bidirectional threaded shaft 13. The limit blocks 15, bidirectional threaded shaft 13, etc. are used to limit and fix the slide plate 10, which facilitates people to quickly disassemble or install the slide plate 10, baffle 11 and gear pump body 1, thus improving practicality.

[0031] Handles are fixedly connected to the lid 4, dustproof net 8 and baffle 11. An observation window 20 is provided on the lid 4. The handle is for easy use, and the observation window 20 is for easy viewing of the inside of the box 3.

[0032] A sealing ring 21 is installed inside the pipe opening to seal the external pipe and the pipe opening, preventing dust from entering.

[0033] It should be further explained that the fan 7 in this embodiment is a conventional device known to those skilled in the art and available on the market. The model can be selected or customized according to actual needs. In this patent, we only use it and have not improved its structure and function. Its setting method, installation method and electrical connection method can be debugged and operated by those skilled in the art according to the requirements of its instruction manual. It will not be described in detail here. The fan 7 is equipped with a matching control switch. The installation position of the control switch can be selected according to the actual use needs to facilitate the operator's operation and control.

[0034] In summary, the working principle and process of this internal gear pump are as follows: First, place the pump at the desired location. Then, pass the external pipe through the pipe opening and seal the pipe opening with the sealing ring 21. When using the gear pump body 1, start the fans 7, one fan 7 blowing air and the other exhausting air, facilitating airflow within the housing 3 and accelerating heat dissipation. The air blown in by the fans 7 first enters the air guide shroud 9, where the air guide vents direct the airflow onto the gear pump body 1, further improving heat dissipation. Simultaneously, the dust filter 8 filters dust and other particles from the air, preventing their entry. The housing 3 and cover 4 can also... The duct 6 is horizontally connected to the housing 3, and the extra section of the duct 6 is used to prevent liquid from falling obliquely onto the filter screen, effectively preventing liquid from entering and improving protection. When maintaining the gear pump body 1, people can directly open the latch lock 5 and lift the cover 4 to maintain the inside of the housing 3. When it is necessary to disassemble the gear pump body 1, people first disconnect the pipe connected to the gear pump body 1, and then simply turn the adjusting knob 14 and the double-threaded shaft 13. The double-threaded shaft 13 will drive the two connecting blocks 16 to move, so that the connecting blocks 16 drive the limiting block 15 to move out of the limiting groove. In this way, people can pull out the sliding plate 10, gear pump body 1, etc., which facilitates disassembly and maintenance and improves practicality.

[0035] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An internal gear pump, comprising a gear pump body (1), characterized in that, Also includes: The base (2) has multiple mounting holes. The protective mechanism is set on the base (2). The protective mechanism includes a box (3), which is fixedly connected to the base (2). A box cover (4) is rotatably connected to the box (3). Multiple latches (5) are installed between the box cover (4) and the box (3). An installation mechanism is provided on the box (3). The gear pump body (1) is installed on the installation mechanism. Two pipe openings are opened on the box (3). Two air ducts (6) are connected to the box (3). A fan (7) is installed in the air duct (6). A placement port is opened on the air duct (6). A dustproof net (8) is slidably connected in the placement port. A wind guide hood (9) is fixedly connected in the box (3). The wind guide hood (9) is connected to one of the air ducts (6). Multiple air guide ports are opened on the wind guide hood (9). A limiting mechanism is provided on the air duct (6) to limit the dustproof net (8).

2. The internal gear pump according to claim 1, characterized in that: The installation mechanism includes a slide groove and an opening, both of which are located on the housing (3). A slide plate (10) is slidably connected in the slide groove, and a baffle (11) is provided in the opening. The baffle (11) is fixedly connected to the slide plate (10). The gear pump body (1) is fixedly installed on the slide plate (10). Four limiting grooves are provided in the slide groove, and four fixed blocks (12) are fixedly connected to the slide plate (10). The four fixed blocks (12) are arranged in pairs, and two fixed blocks (12) are arranged in pairs. 2) A bidirectional threaded shaft (13) is rotatably connected between them. One end of the bidirectional threaded shaft (13) passes through one of the fixed blocks (12) and is fixedly connected to an adjusting knob (14). A second sliding groove is provided on the slide plate (10). Two limiting blocks (15) are slidably connected in the second sliding groove. The limiting blocks (15) pass through the second sliding groove and extend into the limiting groove. A connecting block (16) is fixedly connected to the limiting block (15). Both connecting blocks (16) are threadedly connected to the bidirectional threaded shaft (13).

3. An internal gear pump according to claim 2, characterized in that: The limiting mechanism includes a slide groove three, which is fixedly connected to the air duct (6). A stop block (17) is slidably connected inside the slide groove three. A spring (18) is provided between the slide groove three and the stop block (17). A control block (19) is fixedly connected to the stop block (17). The control block (19) passes through the slide groove three through a control port.

4. An internal gear pump according to claim 3, characterized in that: Handles are fixedly connected to the box cover (4), dustproof net (8) and baffle (11), and an observation window (20) is provided on the box cover (4).

5. An internal gear pump according to claim 4, characterized in that: A sealing ring (21) is provided inside the pipe opening.

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