Rotatable pump shell, peristaltic pump, liquid leakage prompting device and reaction system

Abstract

The utility model discloses a rotatable pump shell, a peristaltic pump, a liquid leakage prompting device and a reaction system, and relates to the technical field of fluid conveying pumps. Wherein the rotatable pump shell comprises an upper pump shell, a middle pump shell, a lower pump shell, a rotating shaft and a locking mechanism; wherein the rotating shaft sequentially penetrates through the upper pump shell, the middle pump shell and the lower pump shell, and the upper pump shell, the middle pump shell and the lower pump shell can rotate around the rotating shaft; and the locking mechanism is used for locking any one or two of the upper pump shell, the middle pump shell and the lower pump shell. The external pump shell of the pump pipe can be rotated and unscrewed to replace the pump pipe, and the pump body does not need to be completely disassembled and replaced, so that the problem of low disassembly and assembly efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a rotatable pump casing, a peristaltic pump, a liquid leakage prompting device and a reaction system. Background Art

[0002] In the industrial and medical fields, peristaltic pumps are widely used in a variety of application scenarios, such as chemical delivery, drug distribution, wastewater treatment and food processing. Its reliability, flexibility and durability make it the preferred pump type in many industries. With the continuous development of science and technology, the design and performance of peristaltic pumps are also constantly improving. The latest technological advances make peristaltic pumps more efficient, energy-saving and intelligent. In addition, the application of some new materials also provides more possibilities for the development of peristaltic pumps.

[0003] Peristaltic pumps have a wide range of applications, can adapt to a variety of fluids, and have advantages in flow control and pressure regulation. With the continuous advancement of technology, peristaltic pumps will continue to play an important role in various industries. When using peristaltic pumps for liquid transportation, except for the pump tube, the transported product does not directly contact the pump body, and the repetition accuracy and stability are high. In the case of no liquid dry operation, no damage will be caused to any parts of the pump. It can transport various medical reagents, chemical reagents, other materials and various foods with corrosive and oxygen-sensitive characteristics.

[0004] Specifically, the peristaltic pump is a new type of fluid delivery pump that appeared after the rotor pump, centrifugal pump, diaphragm pump and other liquid delivery pumps. Its working principle is that the gland and roller of the peristaltic pump compress the pump tube, and the pump tube between the two rollers presents a pillow shape. When the roller rotates, it will alternately squeeze and release the elastic delivery pump tube to pump the fluid. As the roller rolls, the elasticity of the pump tube will cause the pump tube to continuously restore its original shape, forming a negative pressure at the pump inlet, prompting the liquid to flow and fill the pipeline to achieve the purpose of transmission.

[0005] The working principle of the peristaltic pump is based on two main parts: the pump body and the pump tube. The fluid is isolated in the pump tube for transmission. The peristaltic pump has the characteristics of fluid reversibility and dry operation. When in use, only the pump tube is the part that needs to be replaced, and the replacement operation is relatively simple. Therefore, the peristaltic pump is widely used in the transportation of various fluids. As the only consumable part of the peristaltic pump, the pump tube can be turned 90° after about 220 hours of use. Because long-term squeezing of one side of the pump tube is prone to single-sided damage, turning can increase the service life. Because pump tubes of different materials will produce different rebound effects, they also determine the different life cycles of peristaltic pump tubes. At the same time, pump tubes of different materials can withstand the corrosion of fluids or solvents with different pH values. At present, the existing peristaltic pumps are difficult to disassemble and assemble, and the structure is complex. Disassembly and replacement requires the entire peristaltic pump to be disassembled and replaced. Therefore, how to improve the disassembly and assembly efficiency of the peristaltic pump is a technical problem that technicians in this field currently need to solve.

[0006] In addition, the common pump head card assembly design for installing the pump tube is fixed by a spring connection. This design involves the spring undergoing plastic deformation under long-term pressure or tension (the spring exceeds the elastic limit and cannot return to its original state), resulting in a decrease in the performance of the spring or malfunction. Secondly, in the event that the pump tube is damaged or the liquid leaks, the spring will be corroded. The corrosion will weaken the strength and durability of the spring, making it prone to other defects and further damaging the entire pump head. For example, a peristaltic pump (CN 206329470 U) installs the card assembly and the pump tube on the card assembly. When the pump tube needs to be replaced, the pump tube can be quickly disassembled and assembled by rotating the card assembly; however, the design of the above-mentioned spring buckle is very easy to fail in actual application. Utility Model Content

[0007] In view of this, the utility model provides a technical solution of a rotatable pump casing, a peristaltic pump, a liquid leakage prompting device and a reaction system.

[0008] In a first aspect, the utility model provides a rotatable pump housing, comprising: an upper pump housing, an intermediate pump housing, a lower pump housing, a rotating shaft and a locking mechanism;

[0009] Among them, the rotating shaft passes through the upper pump shell, the middle pump shell and the lower pump shell in sequence, and the upper pump shell, the middle pump shell and the lower pump shell can rotate around the rotating shaft; the locking mechanism is used to lock any one or two pump shells among the upper pump shell, the middle pump shell and the lower pump shell.

[0010] Preferably, the locking mechanism comprises: a first fixing screw and / or a second fixing screw;

[0011] Among them, the first fixing screw of the locking mechanism is used to lock any one pump shell among the upper pump shell, the middle pump shell and the lower pump shell; the second fixing screw of the locking mechanism is used to lock any two pump shells among the upper pump shell, the middle pump shell and the lower pump shell.

[0012] In a second aspect, the utility model provides a peristaltic pump, comprising or applying the rotatable pump casing as described above.

[0013] Preferably, the peristaltic pump comprises: at least one pump tube; a mounting groove is provided on the inner side of the intermediate pump housing; a guide groove is provided on the inner side of the lower pump housing to dock with the mounting groove;

[0014] Wherein, the pump tube is arranged in the installation groove through the guide groove.

[0015] Preferably, the mounting groove comprises: a plurality of guide strips matching the number of the pump tubes; wherein the plurality of guide strips are configured as a plurality of protrusions formed on the inner side of the intermediate pump housing; and a plurality of the mounting grooves are formed on opposite sides between the plurality of protrusions.

[0016] Preferably, the upper pump housing is further provided with a main shaft; wherein the main shaft is connected to a rotating extrusion mechanism provided in the middle pump housing;

[0017] Wherein, the rotating extrusion mechanism is in contact with a pump tube arranged on the inner side of the intermediate pump housing.

[0018] Preferably, the rotating mechanism comprises: a first rotating disk arranged at the lower side of the upper pump housing, a second rotating disk arranged at the lower pump housing, and a squeezing roller arranged between the first rotating disk and the second rotating disk;

[0019] The outer side of the squeezing roller contacts the pump tube arranged on the inner side of the intermediate pump housing.

[0020] Preferably, pump tube buckles are respectively provided on the outer sides of both ends of the pump tube arranged on the inner side of the intermediate pump housing.

[0021] In a third aspect, the utility model provides a liquid leakage prompting device, characterized in that it comprises: the peristaltic pump described above; the lower pump housing is provided with a liquid leakage collecting port;

[0022] Among them, the leaked liquid of the pump tube arranged on the inner side of the intermediate pump housing flows into the leakage collector from the leakage collection port; the leakage collector is provided with a detection reagent, and the detection reagent chemically reacts with the leaked liquid to indicate that the pump tube is leaking.

[0023] Preferably, the liquid in the pump tube is one or more of trichloromethylsilane, acetone, and dilute sulfuric acid; the detection reagent corresponding to the liquid is one or more of ammonia water, sodium hydroxide and / or iodine solution, and acid-base indicator.

[0024] In a fourth aspect, the utility model provides a reaction system, comprising or applying: the peristaltic pump as described above and / or the leakage prompt device as described above;

[0025] The peristaltic pump is connected to the reaction furnace through a pipeline, and the pipeline is also connected to at least one reactant container. The pipeline connected to the reaction container is also provided with a regulating valve for controlling the flow rate of the reactant in the reactant container.

[0026] The utility model has at least the following beneficial effects:

[0027] The utility model provides a rotatable pump casing, a peristaltic pump, a liquid leakage prompting device and a reaction system, wherein an outer pump casing (for example, an intermediate pump casing) on ​​which a pump tube is installed can be rotated along a rotating shaft to twist open and replace the pump tube inside the pump casing, without completely disassembling the pump body for replacement, thereby solving the problem of low disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0029] Figure 1 It is a top view corresponding to the rotatable pump housing or peristaltic pump or liquid leakage prompting device of the embodiment of the utility model; wherein, Figure 1 (a) is a top view of a rotatable pump housing or a peristaltic pump or a leakage indication device corresponding to a single channel (one pump tube); Figure 1 (b) is a top view of a rotatable pump housing or a peristaltic pump or a leakage indication device corresponding to a multi-channel (multiple pump tubes);

[0030] Figure 2 : is a top view corresponding to the intermediate pump housing of the embodiment of the utility model; wherein, Figure 2 (a) is a top view of the intermediate pump housing corresponding to a single channel (one pump tube); Figure 2 (b) is a top view of the intermediate pump housing corresponding to the multi-channel (multiple pump tubes);

[0031] Figure 3 This is a schematic diagram of the internal structure of a peristaltic pump with the middle pump housing removed according to an embodiment of the utility model; wherein: Figure 3 (a) is a schematic diagram of the internal structure of a peristaltic pump with the middle pump housing removed corresponding to a single channel (one pump tube); Figure 3 (b) is a top view of the internal structure of a peristaltic pump with the middle pump housing removed corresponding to a multi-channel (multiple pump tubes) pump;

[0032] Figure 4 It is a left view corresponding to the rotatable pump housing or peristaltic pump or leakage prompt device of the embodiment of the utility model; wherein, Figure 4 (a) is a left side view of a rotatable pump housing or a peristaltic pump or a leakage indication device corresponding to a single channel (one pump tube); Figure 4 (b) is a left side view of a rotatable pump housing or a peristaltic pump or a leakage indication device corresponding to a multi-channel (multiple pump tubes);

[0033] Figure 5 This is a diagram showing the internal structure of the main shaft of a peristaltic pump according to an embodiment of the utility model;

[0034] Figure 6 It is an assembly diagram of the pump tube and the internal main shaft of the peristaltic pump of the embodiment of the utility model; wherein, Figure 6 (a) is the assembly diagram of the pump tube corresponding to a single channel (one pump tube) and the internal main shaft of the peristaltic pump; Figure 6 (b) is an assembly diagram of the pump tubes corresponding to multiple channels (multiple pump tubes) and the internal spindle of the peristaltic pump;

[0035] Figure 7 It is a schematic diagram corresponding to the reaction system of the embodiment of the utility model. DETAILED DESCRIPTION

[0036] The present invention is described below based on embodiments, but it is worth noting that the present invention is not limited to these embodiments. In the detailed description of the present invention below, some specific details are described in detail. However, for the parts that are not described in detail, those skilled in the art can also fully understand the present invention.

[0037] In addition, those skilled in the art should understand that the drawings are only provided to illustrate the purpose, features and advantages of the present invention, and the drawings are not actually drawn according to scale.

[0038] At the same time, unless the context clearly requires otherwise, the words "include", "comprises" and similar words throughout the specification and claims should be interpreted as inclusive rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0039] Figure 1 It is a top view corresponding to the rotatable pump housing or peristaltic pump or liquid leakage prompting device of the embodiment of the utility model; wherein, Figure 1 (a) is a top view of a rotatable pump housing or a peristaltic pump or a leakage indication device corresponding to a single channel (one pump tube); Figure 1 (b) is a top view of a rotatable pump housing or a peristaltic pump or a leakage indication device corresponding to a multi-channel (multiple pump tubes). Figure 1 and Figure 2 As shown, the rotatable pump housing 1 comprises: an upper pump housing 1-1, an intermediate pump housing 1-2, a lower pump housing 1-3, a rotating shaft 2 and a locking mechanism; wherein the rotating shaft 2 sequentially passes through the upper pump housing 1-1, the intermediate pump housing 1-2 and the lower pump housing 1-3, and the upper pump housing 1-1, the intermediate pump housing 1-2 and the lower pump housing 1-3 can rotate around the rotating shaft 2; the locking mechanism is used to lock any one or two pump housings among the upper pump housing 1-1, the intermediate pump housing 1-2 and the lower pump housing 1-3. The outer pump housing (for example, the intermediate pump housing) where the pump pipe is installed can be rotated along the rotating shaft to twist open and replace the pump pipe inside the pump housing, without completely disassembling the pump body for replacement, so as to solve the problem of low disassembly and assembly efficiency.

[0040] In the embodiments of the present disclosure and other possible embodiments, for example, at least one pump tube 5 is installed on the inner side of the intermediate pump housing 1-2, and the locking mechanism simultaneously locks the upper pump housing 1-1 and the intermediate pump housing 1-2 (or, locks the intermediate pump housing 1-2 and the lower pump housing 1-3), and also locks the upper pump housing 1-1 and the lower pump housing 1-3 respectively. When replacing the pump tube 5 on the inner side of the intermediate pump housing 1-2, the locking mechanism is kept locking the upper pump housing 1-1 and the lower pump housing 1-3, and at the same time, the locking of the upper pump housing 1-1 and the intermediate pump housing 1-2 is released (or, the locking of the intermediate pump housing 1-2 and the lower pump housing 1-3 is released). At this time, the intermediate pump housing 1-2 can be rotated along the rotating shaft 2 to twist off the pump tube on the inner side of the replacement pump housing, without completely disassembling the pump body for replacement, so as to solve the problem of low disassembly and assembly efficiency.

[0041] In the embodiment of the present disclosure and other possible embodiments, the inner side of the intermediate pump housing 1-2 is provided with a mounting groove 7 ( Figure 2 ); the inner side of the lower pump housing 1-3 is provided with a guide groove 8 ( Figure 3 ); wherein the pump tube 5 is arranged in the mounting groove 7 through the guide groove 8.

[0042] In the embodiment of the present disclosure, the locking mechanism includes: a first fixing screw 3 and / or a second fixing screw 4; wherein the first fixing screw 3 of the locking mechanism is used to lock any one of the upper pump housing 1-1, the middle pump housing 1-2, and the lower pump housing 1-3; the second fixing screw 4 of the locking mechanism is used to lock any two of the upper pump housing 1-1, the middle pump housing 1-2, and the lower pump housing 1-3. wherein the any two pump housings may be configured as the adjacent upper pump housing 1-1 and the middle pump housing 1-2 or as the adjacent middle pump housing 1-2 and the lower pump housing 1-3.

[0043] In the embodiments of the present disclosure and other possible embodiments, the pump pipe 5 is installed on the inner side of the intermediate pump casing 1-2, and the second fixing screw 4 of the locking mechanism simultaneously locks the upper pump casing 1-1 and the intermediate pump casing 1-2 (or, locks the intermediate pump casing 1-2 and the lower pump casing 1-3), while the first fixing screw 3 of the locking mechanism locks the upper pump casing 1-1 and the lower pump casing 1-3 respectively. When replacing the pump tube 5 inside the intermediate pump casing 1-2, keep the first fixing screw 3 of the locking mechanism to lock the upper pump casing 1-1 and the lower pump casing 1-3, and the upper pump casing 1-1 and the lower pump casing 1-3 cannot rotate along the rotating shaft 2 at this time. At the same time, release the second fixing screw 4 of the locking mechanism to lock the upper pump casing 1-1 and the intermediate pump casing 1-2 (or release the locking of the intermediate pump casing 1-2 and the lower pump casing 1-3). At this time, the intermediate pump casing 1-2 can be rotated along the rotating shaft 2 to twist open and replace the pump tube inside the pump casing, without completely disassembling the pump body for replacement, so as to solve the problem of low disassembly and assembly efficiency.

[0044] In the embodiment of the present disclosure and other possible embodiments, the upper pump housing 1-1 and the intermediate pump housing 1-2 are respectively provided with a first screw hole and a second screw hole that cooperate with the second fixing screw 4; the second fixing screw 4 is respectively passed through the first screw hole and the second screw hole to lock the upper pump housing 1-1 and the intermediate pump housing 1-2. Alternatively, the intermediate pump housing 1-2 and the lower pump housing 1-3 are respectively provided with a second screw hole and a third screw hole that cooperate with the second fixing screw 4; the second fixing screw 4 is respectively passed through the second screw hole and the third screw hole to lock the intermediate pump housing 1-2 and the lower pump housing 1-3.

[0045] In the embodiment of the present disclosure and other possible embodiments, the first screw hole and the second screw hole or the second screw hole and the third screw hole are arranged in a direction along which the upper pump housing 1-1, the middle pump housing 1-2 and the lower pump housing 1-3 are sequentially connected, for example Figure 1 and Figure 2 The vertical direction (perpendicular to the direction in which the upper pump casing 1-1, the middle pump casing 1-2 and the lower pump casing 1-3 are connected in sequence).

[0046] In the embodiment of the present disclosure and other possible embodiments, the upper pump casing 1-1 and the lower pump casing 1-3 are also respectively provided with a fourth screw hole and a fifth screw hole, and two first fixing screws 3 are respectively used to lock the upper pump casing 1-1 and the lower pump casing 1-3 through the fourth screw hole and the fifth screw hole.

[0047] In the embodiment of the present disclosure and other possible embodiments, the main body of the intermediate pump housing 1-2 is configured as a U-shaped member; the U-shaped arms on both sides of the U-shaped member are respectively provided with an axial hole corresponding to the rotating shaft 2 and the second screw hole; the inner side of the U-shaped member is configured Figure 2 Mounting slot 7 in.

[0048] Figure 2 : is a top view corresponding to the intermediate pump housing of the embodiment of the utility model; wherein, Figure 2 (a) is a top view of the intermediate pump housing corresponding to a single channel (one pump tube); Figure 2 (b) is a top view of the intermediate pump housing corresponding to the multi-channel (multiple pump tubes). Figure 3 This is a schematic diagram of the internal structure of a peristaltic pump with the middle pump housing removed according to an embodiment of the utility model; wherein: Figure 3 (a) is a schematic diagram of the internal structure of a peristaltic pump with the middle pump housing removed corresponding to a single channel (one pump tube); Figure 3 (b) is a top view of the internal structure of a peristaltic pump with the middle pump shell removed, corresponding to a multi-channel (multiple pump tubes) pump. Figure 4 It is a left view corresponding to the rotatable pump housing or peristaltic pump or leakage prompt device of the embodiment of the utility model; wherein, Figure 4 (a) is a left side view of a rotatable pump housing or a peristaltic pump or a leakage indication device corresponding to a single channel (one pump tube); Figure 4 (b) is a left view of a rotatable pump housing or a peristaltic pump or a leakage indication device corresponding to a multi-channel (multiple pump tubes). Figure 5 It is a diagram showing the internal structure of the peristaltic pump spindle according to an embodiment of the utility model.

[0049] The embodiment of the present disclosure also proposes a peristaltic pump, including or applying the above-mentioned rotatable pump housing 1. The peristaltic pump includes: at least one pump tube 5; a mounting groove 7 is provided on the inner side of the intermediate pump housing 1-2; a guide groove 8 is provided on the inner side of the lower pump housing 1-3 to dock with the mounting groove; wherein the pump tube 5 is arranged in the mounting groove 7 through the guide groove 8.

[0050] In an embodiment of the present disclosure, the mounting groove 7 comprises: a plurality of guide strips matching the number of the pump tubes 5; wherein the plurality of guide strips are configured as a plurality of protrusions formed on the inner side of the intermediate pump housing 1-2; and a plurality of the mounting grooves 7 are formed on the opposite sides between the plurality of protrusions.

[0051] For example, for one pump tube 5, the mounting groove 7 includes: a first guide strip 7-1 and a second guide strip 7-2; the first guide strip 7-1 and the second guide strip 7-2 are configured as a first protrusion and a second protrusion formed on the inner side of the intermediate pump housing 1-2; the mounting groove 7 is formed on the opposite sides of the first protrusion and the second protrusion.

[0052] In an embodiment of the present disclosure, the upper pump housing 1-1 is also provided with a main shaft 9; wherein the main shaft 9 is connected to a rotating extrusion mechanism arranged in the intermediate pump housing 1-2; wherein the rotating extrusion mechanism is in contact with a pump pipe 5 arranged on the inner side of the intermediate pump housing 1-2.

[0053] In an embodiment of the present disclosure, the rotating mechanism includes: a first rotating disk 10 arranged on the lower side of the upper pump housing 1-1, a second rotating disk 12 arranged on the lower pump housing 1-3, and an extrusion roller 9-1 arranged between the first rotating disk 10 and the second rotating disk 12; wherein the outer side of the extrusion roller 9-1 contacts with the tube wall corresponding to the pump tube 5 arranged on the inner side of the intermediate pump housing 1-2.

[0054] In the embodiment of the present disclosure and other possible embodiments, the number of the squeezing rollers 9-1 can be configured as 3, and the three squeezing rollers 9-1 are arranged between the first rotating disk 10 and the second rotating disk 12, and the outer sides of the three squeezing rollers 9-1 are in contact with the pump pipe 5 arranged on the inner side of the intermediate pump casing 1-2.

[0055] Figure 6 It is an assembly diagram of the pump tube and the internal main shaft of the peristaltic pump of the embodiment of the utility model; wherein, Figure 6 (a) is the assembly diagram of the pump tube corresponding to a single channel (one pump tube) and the internal main shaft of the peristaltic pump; Figure 6 (b) is an assembly diagram of the pump tubes corresponding to the multi-channel (multiple pump tubes) and the main shaft inside the peristaltic pump. Pump tube buckles 11 are respectively arranged on the outer sides of both ends of the pump tube 5 arranged inside the intermediate pump housing 1-2.

[0056] The embodiments of the present disclosure also propose a leakage prompting device, comprising: a peristaltic pump as described above; the lower pump housing 1-3 is provided with a leakage collecting port 6; wherein the leaked liquid of the pump tube 5 arranged on the inner side of the intermediate pump housing 1-2 flows into the leakage collector from the leakage collecting port 6; the leakage collector is provided with a detection reagent, and the detection reagent chemically reacts with the leaked liquid to prompt that the pump tube 5 is leaking.

[0057] In the embodiments of the present disclosure and other possible embodiments, the liquid in the pump tube 5 is configured as one or more of trichloromethylsilane, acetone, and dilute sulfuric acid; the detection reagent corresponding to the liquid is configured as one or more of ammonia water, sodium hydroxide and / or iodine solution, and acid-base indicators.

[0058] In the embodiments of the present disclosure and other possible embodiments, specifically, the main shaft 9 and the rotating shaft 2 pass through the upper pump shell 1-1, the middle pump shell 1-2, and the lower pump shell 1-3 of the rotatable pump shell 1; wherein the main shaft 9 is arranged at the center position corresponding to the upper pump shell 1-1, the middle pump shell 1-2, and the lower pump shell 1-3 passing through the rotatable pump shell 1, and the rotating shaft 2 is arranged on the inner side of the vertices of the upper pump shell 1-1, the middle pump shell 1-2, and the lower pump shell 1-3 passing through the rotatable pump shell 1. Specifically, the main shaft 9 is connected to three small shafts (squeezing rollers 9-1), driving the three small shafts (squeezing rollers 9-1) to rotate, and is used to squeeze the pump tube 5; the pump tube buckle 11 is clamped on the outer side of the pump tube 5, and the outer side of the pump tube 5 is arranged on the inner side of the middle pump shell 1-2. When the main shaft 9 cannot drive the squeezing roller 9-1 to rotate, the first rotating disk 10 and the second rotating disk 12 are connected to the main shaft 9 and the three small shafts (squeezing roller 9-1) on opposite sides respectively. The first rotating disk 10 and the second rotating disk 12 assist in driving the three small shafts (squeezing roller 9-1) to rotate; a plurality of guide strips matching the number of pump tubes 5; wherein the plurality of guide strips are configured as a plurality of protrusions formed on the inner side of the intermediate pump housing 1-2; a plurality of mounting grooves 7 are formed on the opposite sides between the plurality of protrusions. For example, the two first guide strips 7-1 and the second guide strip 7-2 are protrusions on the inner side of the intermediate pump housing 1-2; the two protrusions form a groove structure that can be docked with the guide groove 8, and the pump tube 5 is in the groove structure formed by the guide groove 8 and the two protrusions that can be docked with the guide groove 8.

[0059] More specifically, the middle part (middle pump housing 1-2) of the rotatable pump housing 1 can be rotated and opened by the rotating shaft 2. When replacing the pump tube 5, it is not necessary to remove the rotatable pump housing 1 or the upper pump housing 1-1 and the lower pump housing 1-3 of the rotatable pump housing 1. It is only necessary to unscrew the first fixing screw 3 and the second fixing screw 4, and then rotate and open the middle pump housing 1-2 of the rotatable pump housing 1 to remove the pump tube 5. The second fixing screw 4 is arranged between the upper and lower pump housings (the upper pump housing 1-1 and the lower pump housing 1-3), and the head of the second fixing screw 4 abuts against the middle part (middle pump housing 1-2), thereby limiting the middle part (middle pump housing 1-2) from being separated from the upper pump housing 1-1 or the lower pump housing 1-3.

[0060] More specifically, the present design adds two guide strips 7 inside the rotatable pump casing 1 and opens a guide groove 8 on the lower pump casing 1-3 to ensure that the rotatable pump casing 1 fits more closely with the internal pump body, while ensuring that the pump tube 5 is well stuck in the guide strip 7 and will not be displaced due to changes in flow rate or flow velocity.

[0061] More specifically, the pump tube 5 of the peristaltic pump is placed along the pump tube buckle 11, and the squeezing roller 9-1 in the peristaltic pump is driven to rotate by the operation of the first rotating disk 10 and the second rotating disk 12, squeezing the pump tube 5, and the pump tube 5 is flattened or compressed, thereby increasing the pressure of the internal liquid. This pressure difference will push the liquid to move peristally in the pump tube 5. At the same time, the pump tube 5 squeezed by the squeezing roller 9-1 will return to its original shape after being released from the pressure, and more fluid will be sucked into the pump tube 5. The pump tube 5 enters and exits from the same side of the pump housing (rotatable pump housing) 1 (, and the pump tube 5 can be squeezed and pushed by the squeezing roller in a larger range, so that the delivery is more stable. The pump tube buckle 11 is connected to the inlet and outlet connectors, and the liquid enters the pump tube 5 through the inlet connector, and then is pushed to the outlet connector under the peristaltic action of the pump tube 5.

[0062] More specifically, the lower pump housing 1-3 is also designed with a leakage collection port 6. Once the pump tube 5 is damaged and leakage occurs, the liquid can be drained and collected in time, and a corresponding detection reagent reacts here to achieve real-time feedback and alarm of the pump tube 5 leakage. For example, the leaked substance (liquid): MTS (trichloromethylsilane), the corresponding detection reagent is configured as ammonia water, and the reaction can generate a large amount of white substance when detected with ammonia water. For another example, the leaked substance (liquid): acetone, the corresponding detection reagent is configured as sodium hydroxide and / or iodine solution, which will produce a yellow precipitate. For another example, the leaked substance (liquid): dilute sulfuric acid, the corresponding detection reagent is configured as an acid-base indicator, and the acid-base indicator can be dipped in the leaked liquid to observe the color change for identification.

[0063] Figure 7 Schematic diagram of the reaction system of the present utility model embodiment. Figure 7 As shown, a reaction system includes or applies: a peristaltic pump as described above and / or a leakage warning device as described above; wherein the peristaltic pump is connected to a reaction furnace via a pipeline, the pipeline is also connected to at least one reactant container, and a regulating valve for controlling the flow rate of the reactant in the reactant container is also provided on the pipeline connected to the reaction container.

[0064] In the embodiments of the present disclosure and other possible embodiments, taking MTS (trichloromethylsilane) as an example, MTS is a precursor during deposition and is an indispensable raw material for preparing protective coatings. However, MTS is liquid at room temperature, its chemical properties are unstable, and it is easy to react with air to form silicone resins. When mixed with air, it will generate hydrogen chloride (HCl) gas, and then generate hydrochloric acid. Hydrochloric acid can cause equipment corrosion and harm to the human body. When inhaled into the human body, it will damage the human respiratory mucosa, and excessive intake will cause damage to the respiratory system. Therefore, MTS needs to be transported and sealed in an inert gas environment with precise flow control.

[0065] Therefore, if Figure 7As shown, the reactant container includes: an H2 reactant container and an Ar reactant container; the H2 reactant container and the Ar reactant container are respectively connected to the reactant container through pipelines; wherein the pipelines connected to the reaction containers are also respectively provided with a first regulating valve and a second regulating valve for controlling the reactant flow in the H2 reactant container and the Ar reactant container.

[0066] In actual operation, after the MTS is transported and adjusted by the peristaltic pump, it enters the reactor under the H2 carrier gas to react in situ to generate SiC, and the reaction exhaust is discharged by a vacuum pump. If leakage is detected (using ammonia water to detect MTS, the reaction can generate a large amount of white substance), the pump tube 5 is corroded and damaged, you can unscrew the first fixing screw 3 and / or the second fixing screw 4 or only unscrew the first fixing screw 3, rotate the middle part (middle pump housing 1-2) to open the peristaltic pump, and clean and replace the pump tube 5. The peristaltic pump designed by this patent can be used to transport MTS, which can not only adjust the flow rate, but also is equipped with a leakage prevention detection device, achieving true safety and feasibility.

[0067] Furthermore, in order to meet the market demand for simultaneously conveying multiple different liquids or controlling multiple flow rates, high speed and high efficiency, this design also provides a multi-channel peristaltic pump design, which can be replaced according to customer requirements. The working mode of the multi-channel peristaltic pump is similar to that of the single-channel peristaltic pump, but it has multiple independent peristaltic channels, each of which contains an independent pump tube 5 and corresponding inlet and outlet connectors. It can simultaneously convey multiple different liquids or control multiple flow rates and independently control flow and pressure, and can achieve precise liquid delivery and flow regulation. Each channel of the multi-channel peristaltic pump is independent, and a failure in one channel will not affect the normal operation of other channels. This improves the reliability and stability of the system, and has broad application prospects in liquid processing and control applications.

[0068] 1. This design is different from the traditional concept of pump casing 1 and pump body splitting. It abandons the cumbersome disassembly steps and many parts and components. The pump casing 1 and the pump body are connected together through the rotating shaft 2 and fixed with screws, so that the pump tube 5 can be easily fixed and replaced. When in use, you only need to remove the screws on the top of the pump casing 1, then rotate the pump casing 1, and you can see the pump tube 5, so that it can be easily replaced and convenient for maintenance.

[0069] 2. This design provides two designs, single-channel and multi-channel, to meet the different needs of the market, improve the efficiency and production capacity of liquid delivery, save time and cost, and reduce the space occupied by equipment. If customers need to switch between single-channel and multi-channel peristaltic pumps, the pump housing 1 is adaptable, and only the pump body needs to be replaced. It has few parts and is easy to operate. It is easy to use and does not require the purchase of a new peristaltic pump, saving time and money costs, and has extremely high adaptability.

[0070] 3. The working principle of the present invention is highly automated, and maintenance personnel can easily operate it with low difficulty. At the same time, due to the provision of a leakage collection port 6, the alarm system helps to quickly respond to leakage of the pump tube 5, reducing potential environmental and safety risks.

[0071] The present invention applies a rotating pump housing 1 to a peristaltic pump. Compared with the previous method of replacing the pump tube 5 after disassembling the peristaltic pump, the replacement time and difficulty are reduced, and the technical requirements for the technicians are reduced. At the same time, the back-pumping and back-suction functions can be achieved by simply changing the direction of the pump impeller. An alarm system is also designed. When a liquid leak occurs, the leaked liquid will be collected and concentrated at the liquid leak collection port 6, and the detection substance therein will react and change color, providing an alarm for easy detection, so that the pump tube 5 can be repaired or replaced in time.

[0072] In summary, the peristaltic pump designed by the present invention has the advantages of strong adaptability, high safety, space saving, low cost, precise flow control, low energy consumption, no pollution, wear resistance and corrosion resistance, which helps the peristaltic pump to be widely used in the fields of chemical industry, medical treatment, environmental protection, etc. As one of the preferred pump types for fluid transportation, the peristaltic pump has a wide range of application prospects.

[0073] The above-mentioned embodiments are only embodiments of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, without departing from the concept of the present invention, several variations, equivalent substitutions, improvements, etc. can be made, which all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the attached claims.

Claims

1. A rotatable pump casing, characterized in that: include: An upper pump casing (1-1), an intermediate pump casing (1-2), a lower pump casing (1-3), a rotating shaft (2) and a locking mechanism; The rotating shaft (2) sequentially passes through the upper pump housing (1-1), the middle pump housing (1-2) and the lower pump housing (1-3), and the upper pump housing (1-1), the middle pump housing (1-2) and the lower pump housing (1-3) can rotate around the rotating shaft (2); the locking mechanism is used to lock any one or two pump housings among the upper pump housing (1-1), the middle pump housing (1-2) and the lower pump housing (1-3).

2. The rotatable pump casing according to claim 1, characterized in that The locking mechanism comprises: a first fixing screw (3) and / or a second fixing screw (4); The first fixing screw (3) of the locking mechanism is used to lock any one of the pump casings among the upper pump casing (1-1), the middle pump casing (1-2), and the lower pump casing (1-3); and the second fixing screw (4) of the locking mechanism is used to lock any two of the pump casings among the upper pump casing (1-1), the middle pump casing (1-2), and the lower pump casing (1-3).

3. A peristaltic pump, characterized in that: Comprising or applying a rotatable pump casing (1) as claimed in any one of claims 1 to 2.

4. The peristaltic pump according to claim 3, characterized in that: include: at least one pump pipe (5); a mounting groove (7) is provided on the inner side of the middle pump housing (1-2); and a guide groove (8) is provided on the inner side of the lower pump housing (1-3) and is connected to the mounting groove; Wherein, the pump tube (5) is arranged in the installation groove (7) through the guide groove (8).

5. The peristaltic pump according to claim 4, characterized in that: The installation groove (7) comprises: a plurality of guide strips matching the number of the pump tubes (5); wherein the plurality of guide strips are configured as a plurality of protrusions formed on the inner side of the intermediate pump housing (1-2); and a plurality of the installation grooves (7) are formed on opposite sides between the plurality of protrusions.

6. The peristaltic pump according to any one of claims 3 to 5, characterized in that: The upper pump housing (1-1) is also provided with a main shaft (9); wherein the main shaft (9) is connected to a rotating extrusion mechanism provided in the middle pump housing (1-2); The rotary extrusion mechanism is in contact with a pump tube (5) arranged on the inner side of the intermediate pump housing (1-2).

7. The peristaltic pump according to claim 6, characterized in that: The rotary extrusion mechanism comprises: a first rotating disk (10) arranged on the lower side of the upper pump housing (1-1), a second rotating disk (12) arranged on the lower pump housing (1-3), and an extrusion roller (9-1) arranged between the first rotating disk (10) and the second rotating disk (12); The outer side of the squeezing roller (9-1) is in contact with a pump tube (5) arranged on the inner side of the intermediate pump housing (1-2).

8. The peristaltic pump according to any one of claims 3 to 5 and 7, characterized in that: Pump tube buckles (11) are respectively arranged on the outer sides of both ends of the pump tube (5) arranged inside the middle pump housing (1-2).

9. A liquid leakage warning device, characterized in that: include: The peristaltic pump according to any one of claims 3 to 8; the lower pump housing (1-3) is provided with a leakage collection port (6); The leaked liquid of the pump tube (5) arranged inside the intermediate pump housing (1-2) flows from the leakage collection port (6) into the leakage collector; the leakage collector is provided with a detection reagent, and the detection reagent chemically reacts with the leaked liquid to indicate that the pump tube (5) is leaking.

10. A reaction system, characterized in that: Including or applying: the peristaltic pump according to any one of claims 3 to 8 and / or the liquid leakage prompting device according to claim 9; The peristaltic pump is connected to the reaction furnace through a pipeline, and the pipeline is also connected to at least one reactant container. The pipeline connected to the reactant container is also provided with a regulating valve for controlling the reactant flow in the reactant container.

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