Peristaltic pump

Abstract

The utility model discloses a peristaltic pump, and belongs to the technical field of peristaltic pumps, the peristaltic pump comprises a main body module and two sealing modules, the main body module comprises a peristaltic pump body, the peristaltic pump body is provided with a first joint pipe and a second joint pipe, and the two sealing modules are arranged at the opposite ends of the first joint pipe and the second joint pipe respectively. The sealing module comprises an inserting pipe movably inserted into the second connector pipe, through the arrangement of a connecting pipe, an abutting disc, a fixing assembly, a pressurization sealing assembly and a boosting ring, the abutting disc can be stably fixed through the fixing assembly, the abutting disc is made to be tightly attached to one end of the second connector pipe, the fixing effect is better, and the sealing effect is better. And a plurality of pressurization sealing assemblies can be driven at the same time for pressurization, so that multi-channel filling between the outer surface of the inserting pipe and the inner wall of the second connector pipe is achieved, the sealing performance of the connector when the second connector pipe is connected with the inserting pipe is improved, the phenomenon of liquid leakage is avoided, and the sealing effect is improved.

Description

Technical Field

[0001] The present application relates to the technical field of peristaltic pumps, and more specifically, to a peristaltic pump. Background Art

[0002] Peristaltic pumps consist of three parts: drive, pump head and hose. The main competitive advantages of peristaltic pumps are that the fluid is isolated in the pump tube, the pump tube can be quickly replaced, the fluid is reversible, dry operation is possible, and the maintenance cost is low. At present, peristaltic pumps are widely used in the chemical industry, mining, metallurgy industry, papermaking industry and other industries due to their own advantages.

[0003] According to the search, the Chinese patent with patent number CN207393441U discloses a peristaltic pump with good sealing performance, including a pump body, a control panel and a pump head are fixedly installed on the front of the pump body, the pump head is clamped with the peristaltic tube, and the two ends of the peristaltic tube extend to the outside of the pump head and are respectively bonded with two fixings, and a connecting pipe is provided on the side of the fixing away from the peristaltic tube. The peristaltic pump with good sealing performance can connect the peristaltic tube and the connecting tube together by aligning the clamp ring with the clamping groove, aligning the inner screw ring with the outer screw ring, and rotating the inner screw ring and the outer screw ring to be threadedly connected. The operation is simple and convenient. When the connecting tube and the peristaltic tube are connected together, the clamping block is compressed, and the elastic performance of the clamping block makes the peristaltic tube always have a tendency to move in the direction of the connecting tube, so that the connection between the peristaltic tube and the connecting tube is tighter and the sealing is better. At the same time, the clamping ring clamping groove is engaged, which improves the connection sealing of the pump tube.

[0004] Regarding the above-mentioned related technologies, the applicant believes that although the above-mentioned peristaltic pump can achieve simple and convenient operation, the threaded connection method currently used in the above-mentioned joints is not stable, and the cooperation of a single clamping ring and a clamping groove is difficult to achieve a good sealing effect. Its connection method and measures to increase the sealing performance are relatively conventional, and liquid leakage is still prone to occur at the joints of the pipes, making it difficult to achieve a comprehensive improvement in the overall sealing performance. For this reason, we propose a peristaltic pump. Utility Model Content

[0005] In order to solve the above problems, the present application provides a peristaltic pump, which adopts the following technical solution:

[0006] A peristaltic pump comprises a main body module and two sealing modules, wherein the main body module comprises a peristaltic pump body, a first joint tube and a second joint tube are arranged on the peristaltic pump body, the two sealing modules are respectively arranged at the opposite ends of the first joint tube and the second joint tube, the sealing module comprises a plug-in tube movably plugged into the second joint tube, one end of the plug-in tube is fixedly connected to a connecting tube, the outer surface of the plug-in tube is fixedly connected to a contact disk, one side of the contact disk contacts with one end of the second joint tube, the outer surface of the second joint tube is annularly provided with a plurality of fixed components at equal distances, the plurality of fixed components are all connected to the contact disk, the outer surface of the second joint tube is movably sleeved with a booster ring, the booster ring is connected to a plurality of fixed components, the outer surface of the second joint tube is provided with a plurality of pressurized sealing components, the plurality of pressurized sealing components are staggered with the plurality of fixed components.

[0007] Furthermore, the fixing assembly includes a U-shaped block fixedly connected to the outer surface of the second joint tube, the U-shaped block is movably connected with a clamping screw inside, the outer surface of the clamping screw is threadedly connected with a clamping nut, the outer surface of the contact plate is provided with a clamping groove, the clamping screw is located inside the clamping groove, the other side of the contact plate is provided with a limiting groove that passes through the clamping groove, and the clamping nut is movably connected inside the limiting groove.

[0008] By adopting the above technical solution, the abutment disk can be locked by the clamping screw, thereby improving the overall stability.

[0009] Furthermore, the fixing assembly also includes a mounting groove provided on the outer surface of the booster ring, the inner wall of the mounting groove is movably connected with a connecting arm, and one end of the connecting arm is hinged to the outer surface of the clamping screw.

[0010] By adopting the above technical solution, the boost ring can be pushed when the clamping screw moves by setting the engaging arm.

[0011] Furthermore, the pressurized sealing assembly includes an annular adapter groove opened on the outer surface of the plug-in tube, the inner wall of the second joint tube is provided with an annular mounting groove, an inflatable sealing ring is arranged inside the annular mounting groove, and the outer surface of the inflatable sealing ring is fitted to the inner wall of the annular adapter groove.

[0012] By adopting the above technical solution, the sealing performance can be improved through the cooperation between the inflatable sealing ring and the annular adapter groove.

[0013] Furthermore, the pressurized sealing assembly also includes an inflation cylinder fixedly connected to the outer surface of the second joint tube, the outer surface of the booster ring is fixedly connected to a pressurized rod, one end of the pressurized rod extends to the interior of the inflation cylinder, one end of the pressurized rod is fixedly connected to a pressurized block, the outer surface of the pressurized block is movably connected to the interior of the inflation cylinder, and the pressurized block is in contact with one end of the inner wall of the inflation cylinder, one end of the inflation cylinder is fixedly connected to a connecting tube, and the connecting tube is connected to the inflation sealing ring.

[0014] By adopting the above technical solution, the inflatable sealing ring can be automatically inflated when the clamping screw moves.

[0015] Furthermore, the pressurized sealing assembly also includes an air nozzle fixedly connected to the outer surface of the connecting pipe, and the outer surface of the air nozzle is threadedly connected to an air cap.

[0016] By adopting the above technical solution, the inflatable sealing ring can be inflated through the air nozzle.

[0017] Furthermore, the sealing module also includes a connecting ring groove opened at one end of the second connecting pipe, the interior of the connecting ring groove is fixedly connected to a rubber sealing gasket, and one side of the contact plate is fixedly connected to a clamping ring, the clamping ring is movably connected to the interior of the connecting ring groove, and the clamping ring contacts the rubber sealing gasket.

[0018] By adopting the above technical solution, the overall sealing performance can be further improved.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] (1) The present application arranges the connecting tube, the abutment disk, the fixing assembly, the pressurized sealing assembly and the booster ring, so that the fixing assembly can realize the stable fixation of the abutment disk, so that the abutment disk is closely attached to one end of the second joint tube, and the fixing effect is better. In addition, the multiple pressurized sealing assemblies can be driven to pressurize at the same time, so as to realize the multi-pass filling between the outer surface of the plug-in tube and the inner wall of the second joint tube, thereby improving the sealing of the interface when the second joint tube is connected to the plug-in tube, avoiding the phenomenon of liquid leakage, and improving the sealing effect;

[0021] (2) The present application provides a rubber sealing gasket and a retaining ring, so that the sealing effect of the retaining ring when inserted into the connecting ring groove is better, thereby further improving the sealing effect of the present structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of this application;

[0023] Figure 2 This is a schematic cross-sectional structural diagram of the sealing module of the present application;

[0024] Figure 3 This is a schematic diagram of the disassembly structure of the plug-in pipe and the joint pipe of this application;

[0025] Figure 4 This is a schematic cross-sectional view of the pressurized sealing assembly of the present application;

[0026] Figure 5 This is an enlarged structural diagram of location A of this application;

[0027] Figure 6 This is an enlarged structural diagram of point B of this application.

[0028] Description of the numbers in the figure:

[0029] 100, main body module; 110, peristaltic pump body; 120, first joint pipe; 130, second joint pipe;

[0030] 200, sealing module; 210, plug-in tube; 220, connecting tube; 230, abutment plate; 240, fixing assembly; 241, U-shaped block; 242, snap-in screw; 243, snap-in nut; 244, snap-in groove; 245, limit groove; 246, installation groove; 247, connecting arm; 250, pressurized sealing assembly; 251, annular adapter groove; 252, inflatable sealing ring; 253, pressurized rod; 254, pressurized block; 255, connecting tube; 256, air nozzle; 257, air cover; 260, connecting ring groove; 270, rubber sealing gasket; 280, snap ring; 290, booster ring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] See also Figure 1-6 A peristaltic pump comprises a main body module 100 and two sealing modules 200. The main body module 100 comprises a peristaltic pump body 110. The peristaltic pump body 110 is provided with a first joint pipe 120 and a second joint pipe 130. The two sealing modules 200 are respectively arranged at opposite ends of the first joint pipe 120 and the second joint pipe 130. The sealing module 200 comprises a plug-in pipe 210 movably plugged into the inside of the second joint pipe 130. One end of the plug-in pipe 210 is fixedly connected to a connecting pipe 220. The outer surface of the plug-in pipe 210 is fixedly connected to There is a contact disk 230, one side of the contact disk 230 contacts with one end of the second joint tube 130, the outer surface of the second joint tube 130 is annularly provided with multiple fixing components 240 at equal distances, and the multiple fixing components 240 are all connected to the contact disk 230, and the outer surface of the second joint tube 130 is movably sleeved with a booster ring 290, and the booster ring 290 is connected to the multiple fixing components 240, and the outer surface of the second joint tube 130 is provided with multiple pressurized sealing components 250, and the multiple pressurized sealing components 250 and the multiple fixing components 240 are staggered.

[0036] During the connection process, the plug-in tube 210 is inserted into the interior of the second joint tube 130 and the contact disk 230 contacts one end of the second joint tube 130. The subsequent staff rotates multiple fixing components 240 to insert the multiple fixing components 240 into the outer surface of the contact disk 230, and locks the position of the contact disk 230 by connecting the fixing components 240 and the contact disk 230, thereby completing the connection between the plug-in tube 210 and the second joint tube 130. During the rotation of the fixing component 240, the booster ring 290 will be pushed to move, and the booster ring 290 will push the multiple pressurized sealing components 250, and the multiple pressurized sealing components 250 will be inflated, thereby realizing multi-channel filling between the outer surface of the plug-in tube 210 and the inner wall of the second joint tube 130, so that the plug-in tube 210 and the second joint tube 130 After the sealing is higher.

[0037] The fixing assembly 240 includes a U-shaped block 241 fixedly connected to the outer surface of the second joint pipe 130, the interior of the U-shaped block 241 is movably connected with a clamping screw 242, the outer surface of the clamping screw 242 is threadedly connected with a clamping nut 243, the outer surface of the abutment plate 230 is provided with a clamping groove 244, the clamping screw 242 is located inside the clamping groove 244, the other side of the abutment plate 230 is provided with a limiting groove 245 that passes through the clamping groove 244, the clamping nut 243 is movably connected inside the limiting groove 245, the fixing assembly 240 also includes a mounting groove 246 provided on the outer surface of the booster ring 290, the inner wall of the mounting groove 246 is movably connected with a connecting arm 247, one end of the connecting arm 247 is hinged to the outer surface of the clamping screw 242, and the pressurized sealing assembly 250 includes a mounting groove 246 provided on the outer surface of the booster ring 290. An annular adapter groove 251 is provided on the outer surface of the plug-in tube 210, and an annular mounting groove is provided on the inner wall of the second joint tube 130. An inflatable sealing ring 252 is arranged inside the annular mounting groove. The outer surface of the inflatable sealing ring 252 fits against the inner wall of the annular adapter groove 251. The pressurized sealing assembly 250 also includes an inflatable cylinder fixedly connected to the outer surface of the second joint tube 130. A pressurizing rod 253 is fixedly connected to the outer surface of the booster ring 290. One end of the pressurizing rod 253 extends to the interior of the inflatable cylinder. A pressurizing block 254 is fixedly connected to one end of the pressurizing rod 253. The outer surface of the pressurizing block 254 is movably connected to the interior of the inflatable cylinder, and the pressurizing block 254 abuts against one end of the inner wall of the inflatable cylinder. A connecting tube 255 is fixedly connected to one end of the inflatable cylinder, and the connecting tube 255 is connected to the inflatable sealing ring 252.

[0038] The plurality of clamping screws 242 are clamped into the inside of the clamping groove 244, and the clamping nut 243 is subsequently rotated to clamp into the limiting groove 245 to limit the clamping screw 242, and at the same time complete the locking of the position of the contact plate 230. The contact of the clamping nut 243 pushes the contact plate 230 to fit tightly against one end of the second joint tube 130. The connection of the multiple fixing components 240 makes the connection between the plug-in tube 210 and the second joint tube 130 more stable. During the rotation of the clamping screw 242, the booster ring 290 will be pushed to move through the connecting arm 247. The booster ring 290 will push the plurality of pressurizing rods 253 to drive the pressurizing block 254 to move and contact one end of the inner wall of the inflatable cylinder. When the pressurizing block 254 moves, the air will be pressed into the inside of the inflatable sealing ring 252 through the connecting tube 255, so that the inflatable sealing ring 252 expands and fits the inner wall of the annular adapter groove 251, thereby improving the sealing effect.

[0039] The pressurized sealing assembly 250 also includes an air nozzle 256 fixedly connected to the outer surface of the connecting tube 255, and the outer surface of the air nozzle 256 is threadedly connected to an air cover 257. The sealing module 200 also includes a connecting ring groove 260 opened at one end of the second connecting tube 130, and the interior of the connecting ring groove 260 is fixedly connected to a rubber sealing gasket 270, and one side of the contact plate 230 is fixedly connected to a retaining ring 280, and the retaining ring 280 is movably connected to the interior of the connecting ring groove 260, and the retaining ring 280 is in contact with the rubber sealing gasket 270.

[0040] When the abutment disk 230 abuts against one end of the second joint tube 130, the retaining ring 280 will be inserted into the connecting ring groove 260 and abut against the rubber sealing gasket 270. The cooperation between the rubber sealing gasket 270 and the retaining ring 280 further improves the sealing performance of the connection. By opening the air cover 257, the inflatable sealing ring 252 can be pressurized through the air nozzle 256, thereby changing the air pressure inside the inflatable sealing ring 252, so that the inflatable sealing ring 252 can be pressurized as needed.

[0041] The implementation principle of the embodiment of the present application is as follows: during the connection process, the plug-in tube 210 is inserted into the interior of the second joint tube 130 and the abutment disk 230 abuts against one end of the second joint tube 130, and the subsequent staff rotates multiple clamping screws 242 to clamp into the interior of the clamping groove 244, and then rotates the clamping nut 243 to clamp into the limiting groove 245 to limit the clamping screw 242, and at the same time completes the locking of the position of the abutment disk 230, and the abutment of the clamping nut 243 pushes the abutment disk 230 to be close to one end of the second joint tube 130, and the connection of the multiple fixing components 240 makes the connection between the plug-in tube 210 and the second joint tube 130 more stable, and during the rotation of the clamping screw 242, the connecting arm 247 will push the booster ring 290 to move, and the booster ring 290 will push the multiple pressurizing rods 253 to drive the pressurizing block 254 to move and abut against one end of the inner wall of the inflator, and the pressurizing block 254 will be pressed against the inner wall of the inflator. When the air is moved, the air is pressed into the inflatable sealing ring 252 through the connecting tube 255, so that the inflatable sealing ring 252 expands and fits the inner wall of the annular adapting groove 251. The cooperation of multiple inflatable sealing rings 252 and the annular adapting groove 251 realizes multi-channel filling between the outer surface of the plug-in tube 210 and the inner wall of the second joint tube 130, so that the sealing performance of the plug-in tube 210 and the second joint tube 130 after connection is higher, and when the contact plate 230 contacts one end of the second joint tube 130, the clamping ring 280 will be stuck in the connecting ring groove 260 and contact the rubber sealing gasket 270. The cooperation between the rubber sealing gasket 270 and the clamping ring 280 further improves the sealing performance of the connection, and the air cover 257 is opened to pressurize the inflatable sealing ring 252 through the air nozzle 256, so that the air pressure inside the inflatable sealing ring 252 can be changed, so that the inflatable sealing ring 252 can be pressurized as needed.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A peristaltic pump, comprising a main body module (100) and two sealing modules (200), characterized in that: The main body module (100) comprises a peristaltic pump body (110), a first joint pipe (120) and a second joint pipe (130) are arranged on the peristaltic pump body (110), and the two sealing modules (200) are respectively arranged at opposite ends of the first joint pipe (120) and the second joint pipe (130); The sealing module (200) comprises a plug-in tube (210) movably plugged into the interior of a second joint tube (130); one end of the plug-in tube (210) is fixedly connected to a connecting tube (220); an outer surface of the plug-in tube (210) is fixedly connected to a contact disk (230); one side of the contact disk (230) contacts one end of the second joint tube (130); a plurality of fixing components (240) are arranged in an annular shape and at equal distances on the outer surface of the second joint tube (130); the plurality of fixing components (240) are all connected to the contact disk (230); a booster ring (290) is movably sleeved on the outer surface of the second joint tube (130); the booster ring (290) is connected to the plurality of fixing components (240); a plurality of pressurized sealing components (250) are arranged on the outer surface of the second joint tube (130); the plurality of pressurized sealing components (250) and the plurality of fixing components (240) are arranged in a staggered manner.

2. A peristaltic pump according to claim 1, characterized in that: The fixing assembly (240) comprises a U-shaped block (241) fixedly connected to the outer surface of the second joint pipe (130); a clamping screw (242) is movably connected inside the U-shaped block (241); a clamping nut (243) is threadedly connected to the outer surface of the clamping screw (242); a clamping groove (244) is provided on the outer surface of the abutment disk (230); the clamping screw (242) is located inside the clamping groove (244); a limiting groove (245) penetrating the clamping groove (244) is provided on the other side of the abutment disk (230); and the clamping nut (243) is movably connected inside the limiting groove (245).

3. A peristaltic pump according to claim 2, characterized in that: The fixing assembly (240) further comprises a mounting groove (246) formed on the outer surface of the booster ring (290), the inner wall of the mounting groove (246) being movably connected to a connecting arm (247), one end of the connecting arm (247) being hinged to the outer surface of the clamping screw (242).

4. A peristaltic pump according to claim 3, characterized in that: The pressurized sealing assembly (250) comprises an annular adapting groove (251) formed on the outer surface of the plug-in tube (210); an annular mounting groove is formed on the inner wall of the second joint tube (130); an inflatable sealing ring (252) is disposed inside the annular mounting groove; the outer surface of the inflatable sealing ring (252) is fitted to the inner wall of the annular adapting groove (251).

5. A peristaltic pump according to claim 4, characterized in that: The pressurized sealing assembly (250) further comprises an inflatable cylinder fixedly connected to the outer surface of the second joint tube (130); a pressurizing rod (253) is fixedly connected to the outer surface of the booster ring (290); one end of the pressurizing rod (253) extends into the interior of the inflatable cylinder; one end of the pressurizing rod (253) is fixedly connected to a pressurizing block (254); the outer surface of the pressurizing block (254) is movably connected to the interior of the inflatable cylinder, and the pressurizing block (254) contacts one end of the inner wall of the inflatable cylinder; one end of the inflatable cylinder is fixedly connected to a connecting tube (255), and the connecting tube (255) is connected to the inflatable sealing ring (252).

6. A peristaltic pump according to claim 5, characterized in that: The pressurized sealing assembly (250) further comprises an air nozzle (256) fixedly connected to the outer surface of the connecting tube (255), and an air cap (257) is threadedly connected to the outer surface of the air nozzle (256).

7. A peristaltic pump according to claim 6, characterized in that: The sealing module (200) further comprises a connecting ring groove (260) provided at one end of the second joint pipe (130), a rubber sealing gasket (270) being fixedly connected inside the connecting ring groove (260), a snap ring (280) being fixedly connected on one side of the abutment disk (230), the snap ring (280) being movably connected inside the connecting ring groove (260), and the snap ring (280) abuts against the rubber sealing gasket (270).

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