Miniature gear pump

Abstract

The utility model relates to the technical field of miniature gear pumps, and discloses a miniature gear pump which is characterized in that a guide plate movably penetrates through the top of a fixed plate, one end of the guide plate is fixedly connected with a pressing plate, one side of the guide plate is provided with a slot, and two telescopic springs are fixedly connected between the fixed plate and the pressing plate; the two telescopic springs are located on the two sides of the guide plate, two inserting holes are formed in one end of the pump body, a driving motor is installed at one end of the pump body, and a connecting assembly is arranged at the end, close to the pump body, of the driving motor. The pressing plates on the upper side and the lower side of the pump body are pressed at the same time, the pressing plates move in the sliding grooves and push the guide plates to move, the guide plates move on the outer sides of the connecting rods, at the moment, the fixing grooves are separated from one ends of the inserting grooves, the driving motor is detached by pulling the driving motor outwards, operation is easy and fast, and the working efficiency is improved. The dismounting of the driving motor can be quickly completed without a tool, so that time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of micro gear pumps, in particular to a micro gear pump. Background Art

[0002] The gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gears to transport liquid or increase its pressure. It consists of two closed spaces, two gears, a pump body, and front and rear covers. When the gears rotate, the volume of the space on the side where the gears are disengaged changes from small to large, forming a vacuum, sucking in the liquid, and the volume of the space on the side where the gears are meshing changes from large to small, squeezing the liquid into the pipeline. The suction chamber and the discharge chamber are separated by the meshing line of the two gears. The pressure at the discharge port of the gear pump depends entirely on the size of the resistance at the pump outlet.

[0003] The traditional gear pump drive motor is usually fixed to the pump body by bolts. When the drive motor needs to be disassembled for maintenance, the operator needs to use tools to disassemble it, which is not convenient to quickly complete the disassembly of the drive motor, and the disassembly process takes a lot of time. Therefore, a micro gear pump is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a micro gear pump to solve the problem mentioned in the above background technology that the traditional gear pump drive motor is usually fixed to the pump body by bolts. When the drive motor needs to be disassembled for maintenance, the operator needs to use tools to disassemble it, which is not convenient to quickly complete the disassembly of the drive motor and the disassembly process takes a lot of time.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micro gear pump, comprising a pump body, wherein slide grooves are provided on the upper and lower sides of the pump body, a fixed plate is fixedly connected to the inside of the slide groove, a guide plate movably penetrates the top of the fixed plate, a pressing plate is fixedly connected to one end of the guide plate, a slot is provided on one side of the guide plate, two telescopic springs are fixedly connected between the fixed plate and the pressing plate, the two telescopic springs are located on both sides of the guide plate, two jacks are provided at one end of the pump body, a drive motor is installed at one end of the pump body, and a connecting component is provided at the end of the drive motor close to the pump body.

[0006] Preferably, the connecting assembly comprises two connecting rods, the two connecting rods are respectively fixedly connected to one end of the driving motor, and fixing grooves are provided on opposite sides of the two connecting rods.

[0007] Preferably, a connecting shaft is installed inside the pump body, a coupling sleeve is installed at one end of the connecting shaft, and a connecting hole is provided at one end of the coupling sleeve.

[0008] Preferably, a driving gear is fixedly sleeved inside the pump body and located outside the connecting shaft, and a driven gear is connected inside the pump body, and the driven gear is meshingly connected to the outside of the driving gear.

[0009] Preferably, the two sockets are matched with the two connecting rods respectively, and the connecting rods pass through the inside of the sockets.

[0010] Preferably, the output shaft of the driving motor matches the fixing groove, and the output shaft of the driving motor is inserted into the fixing groove.

[0011] Preferably, the connecting rod and the slot match each other, and the connecting rod movably passes through the interior of the slot.

[0012] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects: the utility model presses the pressing plates on the upper and lower sides of the pump body at the same time, and the pressing plates move inside the slide groove and push the guide plate to move, so that the guide plate moves on the outside of the connecting rod. At this time, the fixed groove is disengaged from one end of the slot, and the drive motor is disassembled by pulling the drive motor outward. The operation is simple and quick, and the drive motor can be disassembled quickly without the help of tools, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 4 It is a schematic diagram of the top structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the active gear structure of the utility model.

[0019] Explanation of the accompanying drawings: 1. Pump body; 2. Slide groove; 3. Fixed plate; 4. Guide plate; 5. Pressing plate; 6. Slot; 7. Telescopic spring; 8. Socket; 9. Driving motor; 10. Connecting rod; 11. Fixed groove; 12. Connecting shaft; 13. Coupling sleeve; 14. Connecting hole; 15. Driving gear; 16. Driven gear. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0022] Example

[0023] In the prior art, the traditional gear pump drive motor is usually fixed to the pump body by bolts. When the drive motor needs to be disassembled for maintenance, the operator needs to use tools to disassemble it, which is not convenient to quickly complete the disassembly of the drive motor and the disassembly process takes a lot of time.

[0024] See also Figure 1-5The utility model provides a technical solution: a micro gear pump, including a pump body 1, a slide groove 2 is provided on both the upper and lower sides of the pump body 1, a fixing plate 3 is fixedly connected inside the slide groove 2, a guide plate 4 is movably penetrated on the top of the fixing plate 3, a pressing plate 5 is fixedly connected to one end of the guide plate 4, a slot 6 is provided on one side of the guide plate 4, two jacks 8 are provided on one end of the pump body 1, a driving motor 9 is installed on one end of the pump body 1, a connecting assembly is provided on the end of the driving motor 9 close to the pump body 1, and the connecting assembly includes two connecting rods 10, the two connecting rods 10 are respectively fixedly connected to one end of the driving motor 9, and the two connecting rods 10 are provided on opposite sides. There is a fixing groove 11, a connecting shaft 12 is installed inside the pump body 1, a coupling sleeve 13 is installed at one end of the connecting shaft 12, and a connecting hole 14 is arranged at one end of the coupling sleeve 13; by pressing the pressing plates 5 on the upper and lower sides of the pump body 1 at the same time, the pressing plates 5 move inside the slide groove 2 and push the guide plate 4 to move, so that the guide plate 4 moves on the outside of the connecting rod 10, and at this time the fixing groove 11 is disengaged from one end of the slot 6, and the drive motor 9 is pulled outward to complete the disassembly of the drive motor 9, and at this time the output shaft of the drive motor 9 is disengaged from the inside of the connecting hole 14, the operation is simple and quick, and the drive motor 9 can be disassembled quickly, and the disassembly can be completed without the aid of tools, saving time and effort.

[0025] The interior of the pump body 1 is located on the outside of the connecting shaft 12 and is fixedly sleeved with a driving gear 15. The interior of the pump body 1 is connected to a driven gear 16, which is meshed and connected to the outside of the driving gear 15. The output shaft of the drive motor 9 drives the driving gear 15 on the connecting shaft 12 to rotate, and the driving gear 15 drives the driven gear 16 to rotate inside the pump body 1. During the rotation of the driving gear 15 and the driven gear 16, the volume of the space on the gear disengagement side changes from small to large, forming a vacuum, and the liquid is sucked in through the liquid inlet end, and the volume of the space on the gear meshing side changes from large to small, and then the liquid is squeezed in and then discharged through the liquid outlet end.

[0026] The two sockets 8 are matched with the two connecting rods 10 respectively. The sockets 8 are square holes, and the connecting rods 10 are square columns. The connecting rods 10 pass through the inside of the sockets 8. The output shaft of the drive motor 9 matches with the fixed slot 11, and the output shaft of the drive motor 9 is inserted into the inside of the fixed slot 11. The connecting rods 10 match with the slot 6, and the connecting rods 10 movably pass through the inside of the slot 6. Two telescopic springs 7 are fixedly connected between the fixed plate 3 and the pressing plate 5, and the two telescopic springs 7 are located on both sides of the guide plate 4; when the drive motor 9 needs to be installed, by The connecting rod 10 is aligned with the socket 8 and inserted into the socket 8 so that one end of the connecting rod 10 contacts the inclined surface inside the slot 6, and the drive motor 9 continues to be pushed to move. The guide plate 4 moves inside the slide groove 2. At this time, the telescopic spring 7 is in a compressed state. When the connecting rod 10 passes through the inside of the slot 6, the guide plate 4 is reset under the action of the telescopic spring 7, so that one end inside the slot 6 is clamped in the inside of the fixed groove 11. At the same time, the output shaft of the drive motor 9 is inserted into the inside of the connecting hole 14, and the installation of the drive motor 9 is completed.

[0027] According to the working principle or structural principle, when the drive motor 9 needs to be disassembled for maintenance, the pressing plates 5 on the upper and lower sides of the pump body 1 are pressed at the same time, and the pressing plates 5 move inside the slide groove 2 and push the guide plate 4 to move, so that the guide plate 4 moves outside the connecting rod 10. At this time, the fixing groove 11 is disengaged from one end of the slot 6, and the drive motor 9 is pulled outward to complete the disassembly of the drive motor 9. At this time, the output shaft of the drive motor 9 is disengaged from the inside of the connecting hole 14. The operation is simple and fast, and the drive motor 9 can be disassembled quickly without the help of tools, which saves time and effort. When installing the motor 9, align the connecting rod 10 with the socket 8 and insert the connecting rod 10 into the socket 8, so that one end of the connecting rod 10 contacts the inclined surface inside the slot 6, and continue to push the drive motor 9 to move. The guide plate 4 moves inside the slide groove 2. At this time, the telescopic spring 7 is in a compressed state. When the connecting rod 10 passes through the inside of the slot 6, the guide plate 4 is reset under the action of the telescopic spring 7, so that one end inside the slot 6 is clamped in the inside of the fixed groove 11. At the same time, the output shaft of the drive motor 9 is inserted into the inside of the connecting hole 14, and the installation of the drive motor 9 is completed.

[0028] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

Claims

1. A micro gear pump, comprising a pump body (1), characterized in that: The pump body (1) is provided with a slide groove (2) on both the upper and lower sides, and a fixed plate (3) is fixedly connected inside the slide groove (2), and a guide plate (4) is movably penetrated through the top of the fixed plate (3), and one end of the guide plate (4) is fixedly connected to a pressing plate (5), and a slot (6) is provided on one side of the guide plate (4). Two telescopic springs (7) are fixedly connected between the fixed plate (3) and the pressing plate (5), and the two telescopic springs (7) are located on both sides of the guide plate (4). One end of the pump body (1) is provided with two jacks (8), and one end of the pump body (1) is installed with a driving motor (9), and a connecting component is provided at one end of the driving motor (9) close to the pump body (1).

2. A micro gear pump according to claim 1, characterized in that: The connection assembly comprises two connection rods (10), the two connection rods (10) are respectively fixedly connected to one end of the drive motor (9), and opposite sides of the two connection rods (10) are provided with fixing grooves (11).

3. A micro gear pump according to claim 1, characterized in that: A connecting shaft (12) is installed inside the pump body (1), a coupling sleeve (13) is installed at one end of the connecting shaft (12), and a connecting hole (14) is provided at one end of the coupling sleeve (13).

4. A micro gear pump according to claim 1, characterized in that: A driving gear (15) is fixedly sleeved on the outside of the connecting shaft (12) inside the pump body (1), and a driven gear (16) is connected to the inside of the pump body (1), and the driven gear (16) is meshedly connected to the outside of the driving gear (15).

5. A micro gear pump according to claim 2, characterized in that: The two insertion holes (8) are matched with the two connecting rods (10) respectively, and the connecting rods (10) penetrate the interior of the insertion holes (8).

6. A micro gear pump according to claim 2, characterized in that: The output shaft of the drive motor (9) matches the fixing groove (11), and the output shaft of the drive motor (9) is inserted into the fixing groove (11).

7. A micro gear pump according to claim 2, characterized in that: The connecting rod (10) and the slot (6) match each other, and the connecting rod (10) movably penetrates the interior of the slot (6).

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