Split type anti-explosion stepping peristaltic pump

Abstract

The utility model discloses a split type explosion-proof stepping peristaltic pump, which relates to the field of split type explosion-proof stepping peristaltic pumps and comprises an explosion-proof motor, a first driving shaft mounted at the front end of the explosion-proof motor, a gearbox mounted at the front end of the first driving shaft, a mounting block mounted at the front end of the gearbox, a first screw hole formed in the front end of the mounting block, and a second screw hole formed in the front end of the mounting block. Four first screw holes are formed in the front end of the mounting block and distributed in the front end of the mounting block in a rectangular shape, a protective cover is mounted at the front end of the mounting block, second screw holes are formed in the front end of the protective cover, four second screw holes are formed in the front end of the protective cover and distributed in the front end of the protective cover in a rectangular shape, bolts are mounted in the first screw holes and the second screw holes, and a transparent plate is arranged in the protective cover. A movable hole is installed inside the installation block, a second driving shaft is installed at the front end of the gearbox, the second driving shaft is located in the movable hole, the discharging speed can be adjusted, the explosion-proof motor is arranged, the motor can be used in flammable and explosive places, and electric sparks are not generated in the operation process.

Description

Technical Field

[0001] The utility model relates to the field of split-type explosion-proof stepping peristaltic pumps, in particular to a split-type explosion-proof stepping peristaltic pump. Background Art

[0002] Peristaltic pump is a commonly used fluid delivery device, especially in the field of fluid delivery at milliliters or even microliters level and below, it plays an irreplaceable role.

[0003] In the peristaltic pump of the prior art, the peristaltic pump includes a driver, a pump body and a pump tube. The pump body has a pump groove profile and a transmission interval. A roller group is arranged in the transmission interval. The peristaltic pump drives the roller group through the driver to repeatedly compress the pump tube in the transmission interval, so that the fluid in the pump tube moves in a certain direction. The flow rate is determined by the diameter of the pump tube and the compression speed.

[0004] However, when the roller enters the working surface of the pump tube at the inlet end, the roller will squeeze the volume of the pump tube, causing part of the fluid to flow out from the pump tube release port A at the inlet end, and the flow rate will decrease; when the roller rotates from the inlet end to the point where the roller at the inlet end is closest to the pump groove contour, the flow rate continues to decrease; then, when the roller leaves the point where the roller at the inlet end is closest to the pump groove contour, the squeezed volume of the pump tube is released by the roller, and the flow rate increases. Therefore, under the condition of a fixed speed, the change in the volume of the pump tube caused by the roller squeezing and releasing the pump tube will lead to uneven flow rate.

[0005] Similarly, when the roller leaves the working surface of the pump tube at the outlet, the flow rate of the fluid will also be uneven. When the roller enters the outlet where the roller is closest to the pump groove contour, the roller squeezes the volume of the pump tube, causing part of the fluid to flow out from the pump tube release port A at the outlet, and the flow rate increases; then, when the roller leaves the outlet where the roller is closest to the pump groove contour, the squeezed volume of the pump tube is released by the roller, and the fluid flowing out of the pump tube release port A at the outlet is reduced, and the flow rate decreases.

[0006] Therefore, how to ensure smooth fluid delivery and stable flow rate is a difficulty of this type of peristaltic pump. The main purpose of this application is to provide a peristaltic pump to solve the above problems.

[0007] After exploring the existing Chinese patent: peristaltic pump (publication number: CN117212110A) includes a pump groove profile, a roller and a pump tube, the pump tube is arranged on the inner side of the pump groove profile, and the roller is pressed against the pump tube, the pump tube release port is located in the area where the roller just contacts or just separates from the pump tube, and the pump tube inlet and outlet are located at the end of the pump tube, wherein the cross-sectional expansion of the pump tube between the pump tube release port and the pump tube inlet and outlet is smaller than the cross-sectional expansion of the pump tube extending a predetermined distance from the pump tube release port to the inner side of the peristaltic pump, and the predetermined distance is 0.1 times to 4 times the inner diameter of the pump tube. According to the technical solution of the present application, a peristaltic pump with smooth fluid delivery and stable flow rate is provided.

[0008] The above patent provides a peristaltic pump with smooth fluid delivery and stable flow rate, but when it needs to be used in an explosion-proof area, there are currently no optional explosion-proof peristaltic pumps. Therefore, it is necessary to invent a split explosion-proof stepper peristaltic pump to solve the above problem. Utility Model Content

[0009] The utility model aims to provide a split explosion-proof stepping peristaltic pump to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a split-type explosion-proof stepper peristaltic pump, comprising an explosion-proof motor, a first driving shaft is installed at the front end of the explosion-proof motor, a gearbox is installed at the front end of the first driving shaft, a mounting block is installed at the front end of the gearbox, a first screw hole is opened at the front end of the mounting block, four of the first screw holes are distributed in a rectangular shape at the front end of the mounting block, a protective cover is installed at the front end of the mounting block, a second screw hole is opened at the front end of the protective cover, four of the second screw holes are distributed in a rectangular shape at the front end of the protective cover, bolts are installed inside the first screw hole and the second screw hole, a transparent plate is arranged inside the protective cover, a movable hole is installed inside the mounting block, a second driving shaft is installed at the front end of the gearbox, the second driving shaft is located in the movable hole, a gear is arranged at the front end of the second driving shaft, and a screw is arranged at the front end of the gear.

[0011] Preferably, a rotating block is installed inside the mounting block.

[0012] Preferably, a tooth groove is provided inside the rotating block, and the tooth groove is clamped on the gear.

[0013] Preferably, push blocks are provided at both ends of the rotating block.

[0014] Preferably, a nut is installed inside the rotating block, and the nut is installed on the screw rod.

[0015] Preferably, a hose is installed inside the mounting block.

[0016] Preferably, a fixing block is installed on the outer wall of the hose, and two fixing blocks are distributed at both ends of the hose.

[0017] Technical effects and advantages of the utility model:

[0018] 1. By setting a second driving shaft, a gearbox, a rotating block, a push block and a hose, the liquid is injected into the hose. The rotation of the second driving shaft drives the rotating block to rotate and then drives the push block to rotate. When the push block rotates, the hose is flattened. Then, as the push block moves, negative pressure is formed in the hose. The liquid inside will flow with the push block, and then the liquid is discharged from the other end of the hose. When the discharge speed needs to be adjusted, the discharge speed can be changed by adjusting the speed of the second driving shaft through the gearbox. The advantage is that the discharge speed can be adjusted;

[0019] 2. By setting up an explosion-proof motor, a motor can be used in flammable and explosive places without generating electric sparks during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of a split-type explosion-proof stepping peristaltic pump.

[0022] Figure 2 It is a rear view structural schematic diagram of a split-type explosion-proof stepping peristaltic pump of the utility model.

[0023] Figure 3 The utility model is a schematic diagram of the explosion structure of a split-type explosion-proof stepping peristaltic pump.

[0024] Figure 4 for Figure 3 A is an enlarged schematic diagram of the structure.

[0025] In the figure: 1. explosion-proof motor; 2. first drive shaft; 3. gearbox; 4. mounting block; 5. first screw hole; 6. protective cover; 7. second screw hole; 8. bolt; 9. transparent plate; 10. movable hole; 11. second drive shaft; 12. gear; 13. screw; 14. rotating block; 15. tooth groove; 16. push block; 17. nut; 18. hose; 19. fixing block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0027] The utility model provides Figure 1-4 A split explosion-proof stepper peristaltic pump shown includes an explosion-proof motor 1, wherein the explosion-proof motor 1 is a motor that can be used in flammable and explosive places and does not generate electric sparks during operation. A first drive shaft 2 is installed at the front end of the explosion-proof motor 1, wherein the first drive shaft 2 is installed at the front end of the explosion-proof motor 1 to transmit power, a gearbox 3 is installed at the front end of the first drive shaft 2, wherein the gearbox 3 is installed at the front end of the first drive shaft 2 to adjust the speed of the second drive shaft 11, and a mounting block 4 is installed at the front end of the gearbox 3, wherein the mounting block 4 is installed Installed at the front end of the gearbox 3, it can be used to install parts. The front end of the mounting block 4 is provided with a first screw hole 5. The first screw holes 5 have four rectangular distributions at the front end of the mounting block 4. The first screw holes 5 have four rectangular distributions at the front end of the mounting block 4. Bolts 8 can be installed inside. The front end of the mounting block 4 is installed with a protective cover 6. The protective cover 6 is installed at the front end of the mounting block 4 to protect the internal parts. The front end of the protective cover 6 is provided with a second screw hole 7. The second screw holes 7 have four rectangular distributions at the front end of the protective cover 6. The second screw holes 7 have four rectangular distributions at the front end of the protective cover 6. There are four second screw holes 7 distributed in a rectangular shape at the front end of the protective cover 6, and bolts 8 can be installed inside. Bolts 8 are installed inside the first screw hole 5 and the second screw hole 7, and the bolts 8 are installed inside the first screw hole 5 and the second screw hole 7, which can be used to install the protective cover 6 on the front end of the mounting block 4. A transparent plate 9 is provided inside the protective cover 6, and the transparent plate 9 is provided inside the protective cover 6 to facilitate observation of the internal parts. A movable hole 10 is provided inside the mounting block 4, and the movable hole 10 is installed inside the mounting block 4 to allow the second drive shaft 11 to move inside. A second drive shaft 11 is installed at the front end of the gearbox 3, and the second drive shaft 11 is installed at the front end of the gearbox 3 to drive the rotating block 14 to rotate. The second drive shaft 11 is located in the movable hole 10, and a gear 12 is provided at the front end of the second drive shaft 11, and the gear 12 is provided at the front end of the second drive shaft 11 to fix the rotating block 14. A screw 13 is provided at the front end of the gear 12, and the screw 13 is provided at the front end of the gear 12 to install a nut 17.

[0028] A rotating block 14 is installed inside the mounting block 4 , wherein the rotating block 14 is installed inside the mounting block 4 , and push blocks 16 may be provided at both ends.

[0029] A tooth groove 15 is provided inside the rotating block 14 . Since the tooth groove 15 is provided inside the rotating block 14 , the tooth groove 15 can be stuck on the gear 12 .

[0030] Push blocks 16 are provided at both ends of the rotating block 14 , wherein the push blocks 16 are provided at both ends of the rotating block 14 , and can be used to push the liquid to move.

[0031] A nut 17 is installed inside the rotating block 14 , wherein the rotating block 14 can be fixed by installing the nut 17 inside the rotating block 14 , and the nut 17 is installed at the screw rod 13 .

[0032] A hose 18 is installed inside the mounting block 4 , wherein the hose 18 is installed inside the mounting block 4 so that liquid can pass through it.

[0033] A fixing block 19 is installed on the outer wall of the hose 18 , and two fixing blocks 19 are distributed at both ends of the hose 18 . The hose 18 can be fixed on the mounting block 4 by the two fixing blocks 19 distributed at both ends of the hose 18 .

[0034] Working principle: When in use, start the explosion-proof motor 1 to drive the first drive shaft 2 to rotate, and then control the speed of the first drive shaft 2 through the gearbox 3, and then output from the second drive shaft 11, and then inject the liquid into the hose 18. Through the rotation of the second drive shaft 11, the rotating block 14 is driven to rotate and then the push block 16 is driven to rotate. When the push block 16 rotates, it is flattened in the hose 18, and then as the push block 16 moves, negative pressure is formed in the hose 18, and the internal liquid will flow with the push block 16, and then the liquid is discharged from the other end of the hose 18. When the discharge speed needs to be adjusted, you only need to adjust the speed of the second drive shaft 11 through the gearbox 3 to change the discharge speed.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A split explosion-proof stepper peristaltic pump, comprising an explosion-proof motor (1), characterized in that: The front end of the explosion-proof motor (1) is provided with a first drive shaft (2), the front end of the first drive shaft (2) is provided with a gearbox (3), the front end of the gearbox (3) is provided with a mounting block (4), the front end of the mounting block (4) is provided with a first screw hole (5), the first screw hole (5) has four rectangular holes distributed at the front end of the mounting block (4), the front end of the mounting block (4) is provided with a protective cover (6), the front end of the protective cover (6) is provided with a second screw hole (7), the second screw hole (7) has four rectangular holes The protective cover (6) is provided with a bolt (8) disposed inside the first screw hole (5) and the second screw hole (7), a transparent plate (9) is disposed inside the protective cover (6), a movable hole (10) is disposed inside the mounting block (4), a second drive shaft (11) is disposed at the front end of the gearbox (3), the second drive shaft (11) is located in the movable hole (10), a gear (12) is disposed at the front end of the second drive shaft (11), and a screw rod (13) is disposed at the front end of the gear (12).

2. A split explosion-proof stepping peristaltic pump according to claim 1, characterized in that: A rotating block (14) is installed inside the installation block (4).

3. A split explosion-proof stepping peristaltic pump according to claim 2, characterized in that: A tooth groove (15) is provided inside the rotating block (14), and the tooth groove (15) is clamped on the gear (12).

4. A split explosion-proof stepping peristaltic pump according to claim 2, characterized in that: Push blocks (16) are provided at both ends of the rotating block (14).

5. The split explosion-proof stepping peristaltic pump according to claim 2, characterized in that: A nut (17) is installed inside the rotating block (14), and the nut (17) is installed on the screw rod (13).

6. The split explosion-proof stepping peristaltic pump according to claim 1, characterized in that: A hose (18) is installed inside the mounting block (4).

7. A split explosion-proof stepping peristaltic pump according to claim 6, characterized in that: A fixing block (19) is installed on the outer wall of the hose (18), and two fixing blocks (19) are distributed at both ends of the hose (18).

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