Double-channel continuous liquid supply pump

Abstract

The utility model discloses a double-channel continuous liquid supply pump which comprises a shell, a mounting plate is arranged on the shell, a stepping motor is arranged on the mounting plate and located on the inner side of the shell, a driving lead screw is arranged at the output end of the stepping motor, one end of the mounting plate is connected with a first sliding block in a sliding mode, and the other end of the mounting plate is connected with a second sliding block in a sliding mode. The first sliding block is connected with the second sliding block, the second sliding block is matched with the driving lead screw, an injector is arranged on the portion, on the outer side of the shell, of the mounting plate, the lower end of the injector is matched with the first sliding block, and an electromagnetic valve is arranged on the portion, on the injector, of the mounting plate. The two sets of stepping motors, the two sets of driving lead screws, the two sets of first sliding blocks, the two sets of second sliding blocks, the two sets of injectors and the two sets of electromagnetic valves work independently, and the device is used for switching of the pumping-in function and the pumping-out function of the multiple injectors to achieve continuous liquid supply.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid supply equipment, and more specifically, to a double-channel continuous liquid supply pump. Background Art

[0002] Ordinary liquid supply equipment relies on a single liquid supply pump to drive, cannot perform pumping in and out operations at the same time, cannot provide continuous liquid supply, and has low efficiency. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a dual-channel continuous liquid supply pump to solve the technical problem of low efficiency of traditional liquid supply equipment mentioned in the background technology.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-channel continuous liquid supply pump, comprising a shell, a mounting plate on the shell, a stepper motor on the inner side of the shell, a driving screw rod at the output end of the stepper motor, a first slider slidably connected to one end of the mounting plate, and a second slider slidably connected to the other end, the first slider is connected to the second slider, the two sliders cooperate with the driving screw rod, a syringe is provided on the outer side of the shell of the mounting plate, the lower end of the syringe cooperates with the first slider, a solenoid valve is placed on the mounting plate on the syringe, and the stepper motor, the driving screw rod, the first slider, the second slider, the syringe and the solenoid valve are all provided in two groups and work independently.

[0007] The utility model is further configured that the syringe comprises a front sealing block, a glass tube and a rear sealing block, and sealing rings are provided at the connections between the front sealing block, the rear sealing block and the glass tube to improve the sealing performance of the syringe.

[0008] The utility model is further configured that a core rod is provided on the rear sealing block, a lathe is provided at the lower end of the core rod, a lathe cap is provided at the outer end of the lathe, and a silicone ring is provided between the lathe and the lathe cap to stabilize the liquid in and out of the syringe.

[0009] The utility model is further configured that a small boss is provided at the outer end of the vehicle hood to further improve the sealing performance.

[0010] The utility model is further configured such that a mounting seat is provided on the mounting plate, and the syringe and the mounting seat are detachably matched to facilitate replacement of the syringe.

[0011] The utility model is further configured that a bottom plate is provided at one end of the mounting plate, and the driving screw is rotatably connected to the bottom plate to ensure the stability of the driving structure.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a dual-channel continuous liquid supply pump, which has the following beneficial effects:

[0014] 1. Two sets of stepper motors work separately, and the drive screw, the first slider and the second slider are used to drive multiple sets of syringes arranged on the mounting plate to work, and the discharge or suction of the syringes is controlled. The two sets of stepper motors work independently, so that different syringes can perform different work contents, and are used for switching the pumping in and out functions of multiple syringes to achieve continuous liquid supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front structure of a dual-channel continuous liquid supply pump in the utility model;

[0016] Figure 2 This is a schematic diagram of the matching structure of the syringe and the stepping motor on the mounting plate in the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the syringe in the utility model;

[0018] Figure 4 for Figure 3 A magnified view of the local structure at point A.

[0019] In the figure: 1. housing; 2. mounting plate; 3. stepper motor; 4. driving screw; 5. first slider; 6. second slider; 7. syringe; 8. solenoid valve; 9. front sealing block; 10. glass tube; 11. rear sealing block; 12. sealing ring; 13. core rod; 14. turning part; 15. turning cap; 16. silicone ring; 17. small boss; 18. mounting seat; 19. bottom plate. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0022] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0023] See also Figure 1 and 2 A dual-channel continuous liquid supply pump comprises a shell 1, a mounting plate 2 is arranged on the shell 1, a stepper motor 3 is arranged on the inner side of the shell 1 of the mounting plate 2, a driving screw 4 is arranged at the output end of the stepper motor 3, a first slider 5 is slidably connected at one end of the mounting plate 2, and a second slider 6 is slidably connected at the other end, the first slider 5 is connected with the second slider 6, and the two sliders cooperate with the driving screw 4, a syringe 7 is arranged on the outer side of the shell 1 of the mounting plate 2, and the lower end of the syringe 7 cooperates with the first slider 5, a solenoid valve 8 is placed on the mounting plate 2 on the syringe 7, and the stepper motor 3, the driving screw 4, the first slider 5, the second slider 6, the syringe 7 and the solenoid valve 8 are all arranged in two groups, and work independently.

[0024] In this embodiment, each device is supported by a housing 1, and each device is mounted on a mounting plate 2. A stepper motor 3 is controlled to work so that the corresponding driving screw 4 rotates. The rotating driving screw 4 cooperates with the second slider 6 to provide power for the second slider 6, so that the second slider 6 moves upward along the driving screw 4. When the second slider 6 moves, it will drive the first slider 5 to move, so that the first slider 5 cooperates with the syringe 7 and pushes the control end of the syringe 7 to perform an injection operation, so that the medicine in the syringe 7 enters the solenoid valve 8 and flows to the injected device. At the same time, another linear module pulls another syringe 7, and the medicine in the medicine barrel flows into the syringe 7 through the solenoid valve 8.

[0025] Please refer to Figure 3 As a further embodiment of the syringe: the syringe 7 includes a front sealing block 9, a glass tube 10 and a rear sealing block 11, and sealing rings 12 are provided at the connection between the front sealing block 9 and the rear sealing block 11 and the glass tube 10.

[0026] Specifically, the main structure of the syringe 7 is formed by the cooperation of the front seal, the glass tube 10 and the rear seal block 11. The sealing ring 12 adopts a silicone O-ring, which provides a sufficient sealing effect to seal the glass tube 10 to ensure the stability of the liquid medicine.

[0027] Please refer to Figure 3 and Figure 4 As a further implementation of the syringe: a core rod 13 is provided on the rear sealing block 11, a lathe 14 is provided at the lower end of the core rod 13, a cap 15 is provided at the outer end of the lathe 14, and a silicone ring 16 is provided between the lathe 14 and the cap 15.

[0028] Specifically, the core rod 13 and the turning part 14 cooperate with the rear sealing block 11 to form the control end structure of the syringe 7. By moving the core rod 13, the turning part 14 is moved in the glass tube 10 to push the medicine to move. Moreover, through the cooperation of the turning cap 15 and the silicone ring 16, the silicone ring 16 is easy to deform, which can tighten the turning cap 15 and keep the sealing between the turning part 14 and the glass tube 10.

[0029] Please refer to Figure 1 As a further implementation of the hood: a small boss 17 is provided at the outer end of the hood 15 .

[0030] Specifically, the hood 15 contacts the inner wall of the glass tube 10 through the small boss 17 to achieve a sealing effect.

[0031] Please refer to Figure 2 As a further implementation of the syringe: a mounting seat 18 is provided on the mounting plate 2, and the syringe 7 is detachably matched with the mounting seat 18.

[0032] Specifically, the syringe 7 is mounted on the mounting seat 18 and can be disassembled to facilitate replacement of the syringe 7 .

[0033] Please refer to Figure 2 As a further implementation of the mounting plate: a bottom plate 19 is provided at one end of the mounting plate 2, and the driving screw rod 4 is rotatably connected to the bottom plate 19.

[0034] Specifically, the driving screw rod 4 is supported by the bottom plate 19 so that the rotation of the driving screw rod 4 remains stable.

[0035] In summary, when the overall equipment is in use (or running):

[0036] When the device is in use, each device is supported by the housing 1, and each device is mounted on the mounting plate 2. A stepper motor 3 is controlled to work so that the corresponding driving screw 4 rotates. The driving screw 4 is supported by the bottom plate 19 so that the rotation of the driving screw 4 remains stable. The rotating driving screw 4 cooperates with the second slider 6 to provide power for the second slider 6 so that the second slider 6 moves upward along the driving screw 4. While moving, the second slider 6 will drive the first slider 5 to move so that the first slider 5 cooperates with the syringe 7 to push the core rod 13 of the syringe 7 to perform an injection operation so that the medicine in the syringe 7 enters the solenoid valve 8 and flows to the injected device. At the same time, another linear module pulls another syringe 7 to allow the medicine in the medicine barrel to flow into the syringe 7 through the solenoid valve 8. In addition, the syringe 7 is mounted on the mounting seat 18 and can be disassembled to facilitate the replacement of the syringe 7.

[0037] The main structure of the syringe 7 is formed by the cooperation of the front sealing block 9, the glass tube 10 and the rear sealing block 11, and the control end structure of the syringe 7 is formed by the cooperation of the core rod 13 and the turning part 14 with the rear sealing block 11, wherein the front sealing block 9, the rear sealing block 11, the turning part 14 and the turning cap 15 are all made of Teflon material, and the sealing ring 12 is a silicone O-ring. The sealing ring 12 provides a sufficient sealing effect to seal the glass tube 10 to ensure the stability of the liquid medicine. By moving the core rod 13, the turning part 14 is moved in the glass tube 10 to push the liquid medicine to move, and through the cooperation of the turning cap 15 and the silicone ring 16, the silicone ring 16 is easy to deform, which can make the turning cap 15 tighten, and contact with the inner wall of the glass tube 10 through the small boss 17 to achieve a sealing effect, so that the turning part 14 and the glass tube 10 are kept sealed.

[0038] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A dual-channel continuous liquid supply pump, comprising a housing (1), characterized in that: The housing (1) is provided with a mounting plate (2), the mounting plate (2) is provided with a stepping motor (3) on the inner side of the housing (1), the output end of the stepping motor (3) is provided with a driving screw (4), one end of the mounting plate (2) is slidably connected with a first slider (5), and the other end is slidably connected with a second slider (6), the first slider (5) is connected with the second slider (6), the two sliders cooperate with the driving screw (4), the mounting plate (2) is provided with a syringe (7) on the outer side of the housing (1), the lower end of the syringe (7) cooperates with the first slider (5), the mounting plate (2) is provided with a solenoid valve (8) on the syringe (7), and the stepping motor (3), the driving screw (4), the first slider (5), the second slider (6), the syringe (7) and the solenoid valve (8) are all provided in two groups and work independently.

2. A dual-channel continuous liquid supply pump according to claim 1, characterized in that: The syringe (7) comprises a front sealing block (9), a glass tube (10) and a rear sealing block (11), and sealing rings (12) are provided at the connection points between the front sealing block (9), the rear sealing block (11) and the glass tube (10).

3. A dual-channel continuous liquid supply pump according to claim 2, characterized in that: The rear sealing block (11) is provided with a core rod (13), the lower end of the core rod (13) is provided with a turning part (14), the outer end of the turning part (14) is provided with a turning cap (15), and a silicone ring (16) is provided between the turning part (14) and the turning cap (15).

4. A dual-channel continuous liquid supply pump according to claim 3, characterized in that: The outer end of the vehicle cap (15) is provided with a small boss (17).

5. The dual-channel continuous liquid supply pump according to claim 1, characterized in that: The mounting plate (2) is provided with a mounting seat (18), and the syringe (7) is detachably matched with the mounting seat (18).

6. A dual-channel continuous liquid supply pump according to claim 1, characterized in that: A bottom plate (19) is provided at one end of the mounting plate (2), and the driving screw rod (4) is rotatably connected to the bottom plate (19).

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