A protection mechanism and its rotor pump

Abstract

The utility model discloses a protection mechanism and rotor pump thereof relates to rotor pump technical field. The protection mechanism and rotor pump thereof include protection mechanism and emulsion pump main part, and protection mechanism contains pressure reducing tank and sliding resistance, and pressure reducing tank adjusts emulsion pump pressure through piston, guide rod, and sliding resistance adjusts current through the connecting point change of resistance block and guide rod, and emulsion pump main part contains motor, pump body, and each part realizes sealing and fixed through sealing groove, sealing rubber strip and clamping screw. The utility model discloses through the linkage of pressure and current, realizes emulsion pump accurate protection, and improves sealing performance through modular sealing structure simultaneously, has the advantage of accurate regulation, reliable sealing, long service life, is applicable to the emulsification delivery scene of paint, ink, cosmetics and other fluids.

Description

Technical Field

[0001] This utility model relates to the field of rotor pump technology, specifically a protection mechanism and its rotor pump. Background Technology

[0002] An emulsifying pump is a device that combines fluid transport and fine mixing functions. Its core function is to convert immiscible media such as oil and water into stable emulsions, and it is widely used in the food, daily chemical, and pharmaceutical industries. It relies on the centrifugal force generated by a high-speed rotor to draw the medium into the space between the stator and rotor. Within this narrow space, the medium is subjected to intense shearing, impact, and turbulence, refining large particles or droplets to the micron level, ultimately forming a uniform and stable emulsion. One type of rotor pump with pressure relief protection, publication number: CN218030608U, utilizes a through-hole. When the internal pressure of the rotor pump increases, liquid flows into the through-hole and pushes the sealing block to the right, directing the liquid inside the rotor pump cavity into the support sleeve, thus reducing the internal pressure of the rotor pump. However, the support sleeve has a limited volume, and it cannot provide shutdown protection for the rotor pump when the pressure is too high.

[0003] Existing emulsifying pumps often face two major problems during operation: First, low pressure regulation accuracy. Traditional pressure-reducing structures mostly rely on manual adjustment using mechanical valves, which cannot dynamically adapt power according to real-time pump pressure. This makes them prone to overload due to sudden pressure increases, especially when emulsifying high-viscosity fluids, where pressure fluctuations can easily damage core components. Second, poor sealing performance. The sealing structure between the inlet, connecting shell, and outlet of emulsifying pumps is mostly a single sealing ring design. After long-term emulsification of fluids containing particles or corrosives, seal failure is likely to occur, leading to fluid leakage or impurity infiltration, affecting emulsification efficiency and pump lifespan. In addition, the rotor assembly and shaft connection of existing emulsifying pumps lack stability, making them prone to component wear due to transmission misalignment, further shortening the equipment maintenance cycle.

[0004] Traditional pressure-reducing structures often rely on manual adjustment via mechanical valves, which can easily lead to pump overload due to sudden pressure increases and damage to core components. The sealing structure is often a single sealing ring design, which is prone to sealing failure. The connection between the rotor assembly and the shaft is not stable enough, and the components are prone to wear due to transmission deviations. Utility Model Content

[0005] The purpose of this utility model is to provide a protection mechanism and its rotor pump to solve the problems mentioned in the background art, such as the rotor pump pressure regulation response being lagging, the inability to control the output power in a coordinated manner, and the easy leakage of the sealing structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protection mechanism, including a pressure-reducing mechanism, the pressure-reducing mechanism including a pressure-reducing tank and a sliding resistor, the sliding resistor being connected to the pressure-reducing tank, a piston being inserted into the inner side of the pressure-reducing tank, a guide rod being connected to the piston, the other end of the guide rod passing through the pressure-reducing tank to the outer side; the sliding resistor being sleeved on the outer side of the guide rod, a resistor block being inserted into the inner side of the sliding resistor, the resistor block being electrically connected to the guide rod; the pressure-reducing tank can adjust the pressure inside the emulsifying pump, by adjusting the connection point between the guide rod and the resistor block.

[0007] Preferably, a connecting pipe is connected to the outside of the pressure reducing tank, and a flange is connected to the outside of the connecting pipe, with bolts inserted into the flange.

[0008] Preferably, a sealing ring is fitted around the outside of the piston, the sealing rings are arranged linearly and uniformly, and the sealing rings are tightly fitted to the inner wall of the pressure reducing tank.

[0009] Preferably, a spring is sleeved on the outer side of the guide rod, the spring is located inside the pressure reducing tank, and the guide rod, in conjunction with a sliding resistor, is used to adjust the current to control the output power of the pump.

[0010] A rotary pump includes a protection mechanism, a motor, and an emulsifying pump. The emulsifying pump includes an input end, a connecting housing, and an output end. The connecting housing is located between the input end and the output end. An input connecting flange is connected to the input end, and a first sealing groove is formed on the inner side of the input end.

[0011] Preferably, a second sealing groove is provided on the inner side of the connecting shell, the second sealing groove is symmetrically designed, and a connecting port is provided at the bottom of the connecting shell, the connecting port is corresponding to the connecting pipe, and the connecting port is fitted with a bolt.

[0012] Preferably, an output connection flange is connected to the outer side of the output end, and a third sealing groove is provided on the inner side of the output end. The third sealing groove corresponds to the first sealing groove and the second sealing groove. A clamping screw is inserted into the inner side of the output end. The clamping screw passes through the output end and is inserted into the inner side of the input end and the connecting shell to fix and clamp the input end and the connecting shell.

[0013] Preferably, the emulsifying pump further includes a shaft and a rotor assembly, the rotor assembly being sleeved on the shaft, the shaft being inserted into the inner side of the output end, the shaft passing through the output end and the connecting shell and being inserted into the inner side of the input end, and positioning rings being linearly and evenly distributed on the outer side of the shaft, with a fixing tenon connected to the outer side of the positioning rings, and the fixing tenon being fixedly connected to the shaft.

[0014] Preferably, the rotor assembly is provided in multiple sets, the rotor assembly includes a rotor, a stator and a sealing strip, the rotor is inserted into the stator, the sealing strip is attached to both sides of the stator, and a slot is opened on the inner side of the rotor, the slot is engaged with the outer side of the fixing tenon.

[0015] Preferably, the sealing strip is provided in multiple sets, and the sealing strip corresponds to the first sealing groove, the second sealing groove and the third sealing groove. The multiple sets of stators are respectively fixedly clamped by the input end and the connecting shell, the connecting shell and the connecting shell and the output end.

[0016] The technical effects and advantages of this utility model are as follows: The protection mechanism and its rotor pump, the piston in the pressure reducing tank moves with the pressure change of the emulsifying pump, drives the guide rod to change the contact point with the sliding resistor block, and adjusts the current in real time to control the motor power, so as to realize the linkage matching of pressure and power and avoid response lag; The protection mechanism and its rotor pump, along with multiple sets of sealing rings in the pressure reducing tank and multiple sets of sealing strips in the emulsifying pump, respectively cooperate with the corresponding sealing grooves to form a double seal, effectively preventing media leakage and extending the service life of components. 3. The protection mechanism and its rotor pump, emulsifying pump, fix each component with clamping screws, and the rotor assembly and shaft are connected by fixing tenons. The structure is stable and easy to disassemble and assemble, which facilitates subsequent maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the protective mechanism of this utility model; Figure 3 This is a cross-sectional structural diagram of the pressure-reducing mechanism of this utility model; Figure 4 This is a schematic diagram of the emulsification pump of this utility model; Figure 5 This is a schematic diagram of the input terminal of this utility model; Figure 6 This is a schematic diagram of the connecting shell of this utility model; Figure 7 This is a schematic diagram of the output end of this utility model; Figure 8This is a schematic diagram of the structure of the shaft of this utility model; Figure 9 This is a schematic diagram of the rotor assembly of this utility model.

[0019] In the diagram: 1. Electric motor; 2. Emulsifying pump; 21. Input end; 211. Input connection flange; 212. First sealing groove; 22. Connecting shell; 221. Second sealing groove; 222. Connecting port; 23. Output end; 231. Output connection flange; 232. Third sealing groove; 233. Clamping screw; 24. Shaft; 241. Positioning ring; 242. Fixing tenon; 25. Rotor assembly; 251. Rotor; 2511. Slot; 252. Stator; 253. Sealing strip; 3. Pressure reducing mechanism; 31. Pressure reducing tank; 311. Connecting pipe; 312. Piston; 313. Sealing ring; 314. Guide rod; 315. Spring; 32. Sliding resistor; 321. Resistor block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model discloses a protection mechanism and its rotor pump, according to the appendix. Figures 2-3 As shown, the protection mechanism is applied to the pump, and the core is the pressure reducing mechanism 3, which includes a pressure reducing tank 31 and a sliding resistor 32.

[0022] According to the appendix Figure 3 As shown, further, a piston 312 is inserted into the inner side of the pressure reducing tank 31, and multiple sets of linearly arranged sealing rings 313 are sleeved on the outer side of the piston 312. The sealing rings 313 are tightly fitted to the inner wall of the pressure reducing tank 31 to prevent media leakage.

[0023] According to the appendix Figure 3 As shown, the piston 312 is further connected to the guide rod 314, which passes through the pressure reducing tank 31 to the outside, and the outside is sleeved with a spring 315 located inside the pressure reducing tank 31. The spring 315 can assist the guide rod 314 in resetting.

[0024] According to the appendix Figure 3 As shown, the sliding resistor 32 is sleeved on the outside of the guide rod 314, and a resistor block 321 is inserted into its inner side. The resistor block 321 is electrically connected to the guide rod 314. By adjusting the contact point between the two, the resistance value of the sliding resistor 32 connected to the circuit is changed, thereby adjusting the current.

[0025] According to the appendix Figure 1 As shown, the rotor pump specifically disclosed includes the aforementioned protection mechanism, motor 1, and emulsifying pump 2.

[0026] According to the appendix Figure 4 As shown, it is particularly important to emphasize that a rotor pump includes a protection mechanism, a motor 1, and an emulsifying pump 2. The emulsifying pump 2 consists of an input end 21, a connecting shell 22, an output end 23, a shaft 24, and a rotor assembly 25. The connecting shell 22 is located between the input end 21 and the output end 23. The three components are fixed by a clamping screw 233 that passes through the output end 23.

[0027] According to the appendix Figures 5-7 As shown, it is particularly important to note that the input end 21 has a first sealing groove 212 inside, the connecting shell 22 has a symmetrical second sealing groove 221 inside, the output end 23 has a third sealing groove 232 inside, and the bottom of the connecting shell 22 is provided with a connecting port 222 corresponding to the connecting pipe 311 of the pressure reducing tank 31.

[0028] According to the appendix Figures 4-9 As shown, it is particularly important to emphasize that the shaft 24 passes through the output end 23, the connecting shell 22 to the inner side of the input end 21, and the outer side is equipped with a positioning retaining ring 241 and a fixing tenon 242; the rotor assembly 25 is provided in multiple groups, each group including a rotor 251, a stator 252 and a sealing strip 253. The rotor 251 is engaged with the fixing tenon 242 through the retaining groove 2511, and the sealing strip 253 is clamped on both sides of the stator 252 and cooperates with each sealing groove.

[0029] Working principle: When the pressure inside the emulsifying pump 2 increases, the pressure is transmitted to the inside of the pressure reducing tank 31 through the connecting port 222 and the connecting pipe 311, pushing the piston 312 to move to the right. The piston 312 drives the guide rod 314 to move synchronously. The spring 315 is compressed, which drives the guide rod 314 to move. The contact position between the guide rod and the resistance block 321 inside the sliding resistor 32 changes, which reduces the resistance of the sliding resistor 32 connected to the circuit, increases the circuit current, increases the output power of the motor 1, increases the rotation speed of the shaft 24, increases the output flow of the emulsifying pump 2, and reduces the pressure inside the pump accordingly. When the pressure inside the emulsifying pump 2 drops to the set value, the spring 315 resets and pushes the piston 312 to move to the left, the guide rod 314 returns to the initial position, the resistance of the sliding resistor 32 is restored, the current decreases, the power of the motor 1 is restored, and the pump resumes normal operation. When the pressure inside the emulsifying pump 2 is too high, the spring 315 resets and pushes the piston 312 to move to the right. When the position exceeds the limit, the upper electrode of the guide rod 314 breaks contact with the sliding resistor 32, thus disconnecting the circuit, stopping the motor 1, and stopping the pump.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protection mechanism applied to a pump, comprising a pressure reducing mechanism (3), characterized in that, The pressure reducing mechanism (3) includes a pressure reducing tank (31) and a sliding resistor (32). The sliding resistor (32) is connected to the pressure reducing tank (31). A piston (312) is inserted into the inner side of the pressure reducing tank (31). A guide rod (314) is connected to the piston (312). The other end of the guide rod (314) passes through the pressure reducing tank (31) to the outside. The sliding resistor (32) is sleeved on the outside of the guide rod (314). A resistor block (321) is inserted into the inner side of the sliding resistor (32). The resistor block (321) is electrically connected to the guide rod (314). The pressure reducing tank (31) can adjust the pressure inside the emulsifying pump (2). The sliding resistor (32) adjusts the current by adjusting the connection point between the guide rod (314) and the resistor block (321).

2. The protection mechanism according to claim 1, characterized in that, The pressure reducing tank (31) is connected to a connecting pipe (311) on the outside, and a flange is connected to the outside of the connecting pipe (311), with bolts inserted into the flange.

3. The protection mechanism according to claim 1, characterized in that, A sealing ring (313) is fitted around the outside of the piston (312). The sealing ring (313) is arranged linearly and uniformly, and the sealing ring (313) is tightly fitted to the inner wall of the pressure reducing tank (31).

4. The protection mechanism according to claim 1, characterized in that, A spring (315) is sleeved on the outside of the guide rod (314). The spring (315) is located inside the pressure reducing tank (31). The guide rod (314) works with the sliding resistor (32) to adjust the current to control the output power of the pump.

5. A rotary pump, comprising the protection mechanism as described in any one of claims 1-4, further comprising an electric motor (1) and an emulsifying pump (2), characterized in that, The emulsifying pump (2) includes an input end (21), a connecting shell (22) and an output end (23). The connecting shell (22) is located between the input end (21) and the output end (23). An input connecting flange (211) is connected to the input end (21), and a first sealing groove (212) is provided on the inner side of the input end (21).

6. A rotor pump according to claim 5, characterized in that, The inner side of the connecting shell (22) is provided with a second sealing groove (221), the second sealing groove (221) is symmetrically designed, the bottom of the connecting shell (22) is provided with a connecting port (222), the connecting port (222) corresponds to the connecting pipe (311), and the connecting port (222) is fitted with a bolt.

7. A rotor pump according to claim 5, characterized in that, The output end (23) is connected to an output connection flange (231) on the outside. A third sealing groove (232) is provided on the inside of the output end (23). The third sealing groove (232) corresponds to the first sealing groove (212) and the second sealing groove (221). A clamping screw (233) is inserted into the inside of the output end (23). The clamping screw (233) passes through the output end (23) and is inserted into the inside of the input end (21) and the connecting shell (22) for fixing and clamping the input end (21) and the connecting shell (22).

8. A rotor pump according to claim 5, characterized in that, The emulsifying pump (2) also includes a shaft (24) and a rotor assembly (25). The rotor assembly (25) is sleeved on the shaft (24). The shaft (24) is inserted into the inner side of the output end (23). The shaft (24) passes through the output end (23) and the connecting shell (22) and is inserted into the inner side of the input end (21). Positioning rings (241) are linearly and evenly distributed on the outer side of the shaft (24). A fixing tenon (242) is connected to the outer side of the positioning ring (241). The fixing tenon (242) is fixedly connected to the shaft (24).

9. A rotor pump according to claim 8, characterized in that, The rotor assembly (25) is provided in multiple sets. The rotor assembly (25) includes a rotor (251), a stator (252) and a sealing strip (253). The rotor (251) is inserted into the stator (252). The sealing strip (253) is attached to both sides of the stator (252). A slot (2511) is provided on the inner side of the rotor (251). The slot (2511) is engaged with the outer side of the fixing tenon (242).

10. A rotor pump according to claim 9, characterized in that, Multiple sets of sealing strips (253) are provided. The sealing strips (253) correspond to the first sealing groove (212), the second sealing groove (221) and the third sealing groove (232). Multiple sets of stators (252) are respectively fixedly clamped by the input end (21) and the connecting shell (22), the connecting shell (22) and the connecting shell (22) and the output end (23).

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