Improved peristaltic pump and steam straightening comb

Abstract

This utility model discloses an improved peristaltic pump and steam straightening comb, including a housing and an extrusion device. A cavity is formed inside the housing, and a flexible colloid is disposed in the cavity. The upper and lower edges of the flexible colloid are respectively sealed to the housing, and rigid bodies are embedded at the upper and lower ends of the flexible colloid. A conveying channel is formed between the inner side of the flexible colloid and the inner wall of the housing. The extrusion device includes a drive assembly, and an eccentric crankshaft is installed at the output end of the drive assembly. A first through groove is provided in the center of the flexible colloid for the crankshaft to pass through. The first through groove is adapted to the crankshaft. The crankshaft passes through at least one rigid body and combines with part of the flexible colloid to form a follower structure. The follower structure follows the eccentric movement of the crankshaft. Under the action of the follower structure, the stretching amplitude of the adhesion position reaches the maximum. Through repeated periodic rotation, the adhesion position is repeatedly stretched, thereby separating the adhesion position.

Description

Technical Field

[0001] This utility model belongs to the field of pump technology, specifically an improved peristaltic pump and a steam straightening comb. Background Technology

[0002] Peristaltic pumps deliver fluid by squeezing a flexible tube with rollers. They feature stable flow, low shear force, and adaptability to various fluids. Modern hair styling devices often require high-temperature heating, which can easily damage dry hair, causing it to burn, tear, or become scalded. Therefore, hair styling devices often include steam generators to moisturize the hair. Current hair styling equipment typically uses water pumps for water supply; however, water pumps deliver water quickly, making it difficult to control the precise water flow rate. The speed of water delivery affects the amount of steam, ultimately impacting the styling results.

[0003] Therefore, a peristaltic pump was used as the power source. However, when the peristaltic pump is not in use, it will always maintain a state of compression on the colloid, causing the colloid to come into contact with each other or with the inner wall of the shell. When it is not used for a long time, the surfaces of the colloids will stick to each other or with the shell, affecting the normal use of the peristaltic pump. Utility Model Content

[0004] The purpose of this invention is to provide an improved peristaltic pump and steam straightening comb to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An improved peristaltic pump includes a housing and a squeezing device;

[0007] A cavity is formed inside the shell, and a flexible colloid is provided in the cavity. The upper and lower edges of the flexible colloid are respectively sealed to the shell, and a rigid body is embedded and connected in the flexible colloid. A conveying channel for liquid flow is formed between the inner side of the flexible colloid and the inner wall of the shell. The two ends of the conveying channel correspond to the water inlet and water outlet on the shell, respectively. A partition groove is provided inside the shell, and a blocking part that cooperates with the partition groove is provided on the side of the flexible colloid to isolate the water inlet and water outlet.

[0008] The extrusion device includes a drive assembly, the output end of which is equipped with an eccentric crankshaft. The rigid body has a hole at its center for the crankshaft to pass through. The hole is adapted to the crankshaft and, together with the rigid body and a portion of the flexible colloid, forms a follower structure. The follower structure moves eccentrically with the crankshaft.

[0009] In a further technical solution, a rolling wear-resistant tube is fixedly installed in the rigid body, a second through groove is formed in the rolling wear-resistant tube, and the crankshaft passes through the second through groove in the rolling wear-resistant tube.

[0010] In a further technical solution, two rigid bodies are provided and installed opposite each other at the upper and lower ends of the flexible colloid, and the rolling wear-resistant tube connects the upper and lower rigid bodies simultaneously;

[0011] Alternatively, the rigid body may be a single entity embedded within the flexible colloid, with the rolling wear-resistant tube rigid body fixedly connected.

[0012] In a further technical solution, the crankshaft includes a transmission part, one end of which is connected to a drive assembly, and the other end is provided with a connecting part. The connecting part is provided with an abutting part, and the abutting part is eccentrically disposed with respect to the transmission part.

[0013] In a further technical solution, the flexible colloid is provided with a slot adapted to the rigid body, the rigid body includes a fixing block, a plurality of fitting blocks are provided at intervals on the outer periphery of the fixing block, and the fitting blocks are provided with an arc surface near the conveying channel.

[0014] In a further technical solution, the housing includes a bottom shell, a middle shell, and end caps;

[0015] The upper end face of the middle shell is provided with an upper locking groove, and the lower end face is provided with a lower locking groove. The upper edge and lower edge of the flexible colloid are respectively provided with an upper locking part that mates with the upper locking groove and a lower locking part that mates with the lower locking groove.

[0016] The bottom shell is used to install the drive assembly and is installed at the lower end of the middle shell, cooperating with the middle shell to press the lower edge of the flexible colloid.

[0017] The end cap is installed at the upper end of the middle shell and cooperates with the middle shell to press the upper edge of the flexible colloid tightly.

[0018] A further technical solution is that the bottom surface of the end cap is provided with a plurality of first positioning posts, and the upper end surface of the middle shell is provided with a plurality of first positioning holes that cooperate with them.

[0019] The upper end face of the bottom shell is provided with several second positioning posts, and the lower end face of the middle shell is provided with several second positioning holes that cooperate with them.

[0020] In a further technical solution, the inlet and outlet are arranged in parallel.

[0021] In a further technical solution, two rigid bodies are provided and pressed against the flexible colloid.

[0022] In a further technical solution, the rolling wear-resistant tube is made of metal, the inner diameter of the second through groove is slightly larger than the outer diameter of the crankshaft, a gap is maintained between the second through groove and the crankshaft, and lubricating oil is provided in the gap.

[0023] A steam straightening comb comprising the aforementioned modified peristaltic pump.

[0024] The beneficial effects of this utility model are:

[0025] When stationary, the crankshaft's offset position keeps the flexible colloid in close contact with the inner wall of the housing. As the follower structure follows the crankshaft to one side, the inner diameter of the delivery channel in the opposite direction of the crankshaft reaches its maximum. When not used for a long time, the outer wall of the flexible colloid in close contact will stick to the inner wall of the housing. By rotating the crankshaft, the follower structure is driven to move eccentrically relative to the flexible colloid. When the crankshaft rotates to the position relative to the sticking position, the stretching amplitude of the sticking position reaches its maximum under the action of the follower structure. Through repeated periodic rotations, the sticking position is repeatedly stretched, which can then separate the sticking position.

[0026] The rigid body has a hole or a second through groove at its center for the crankshaft to pass through, and the inner diameter of the hole or through groove is slightly larger than the outer diameter of the crankshaft, which greatly improves the ease of product installation.

[0027] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0028] Figure 1 : Overall three-dimensional structural diagram of this utility model.

[0029] Figure 2 The overall disassembly structure of this utility model Figure 1 .

[0030] Figure 3 The overall disassembly structure of this utility model Figure 2 .

[0031] Figure 4 Disassembly diagram of the flexible colloid, rigid body and rolling wear-resistant tube of this utility model.

[0032] Figure 5 : A structural diagram of the crankshaft of this utility model.

[0033] Figure 6 The second embodiment of this utility model has a side cross-sectional structure. Figure 1 .

[0034] Figure 7 Side view sectional structure of the first embodiment of this utility model Figure 2 .

[0035] Figure 8 : Top view cross-sectional structural diagram of this utility model.

[0036] Reference numerals: 1-House, 11-Bottom shell, 111-Second positioning post, 12-Middle shell, 121-First positioning hole, 122-Second positioning hole, 13-End cap, 131-First positioning post, 141-Upper slot, 142-Lower slot, 15-Cavity, 161-Water inlet, 162-Water outlet, 163-Separating groove, 2-Extrusion device, 21-Drive assembly, 22-Crankshaft, 22 1-Transmission part, 222-Connecting part, 223-Abutting part, 31-Flexible colloid, 32-Rigid body, 321-Fixing block, 322-Matching block, 323-Arc surface, 324-Hole, 341-Upper locking part, 342-Lower locking part, 33-Blocking part, 34-First through groove, 35-Rolling wear-resistant tube, 351-Second through groove, 36-Positioning, 4-Conveying channel, 5-Follow-up structure. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0038] Please refer to Figure 1-8 ;

[0039] This invention aims to provide a non-pipeline peristaltic pump with smoother operation. Specifically, it includes a housing 1 and a squeezing device 2. A cavity 15 is formed inside the housing 1. In this embodiment, the squeezing device 2 performs circular motion, thus the cavity 15 is circular. A flexible colloid 31 is provided in the cavity 15. The upper and lower edges of the flexible colloid 31 are sealed to the housing 1, and a liquid flow channel 4 is formed between the inner side of the flexible colloid 31 and the inner wall of the housing 1. The two ends of the flow channel 4 correspond to the inlet 161 and outlet 161 on the housing 1, respectively. 62. The housing 1 is provided with a partition groove 163. The water inlet end 161 and the water outlet end 162 are two holes formed on the side of the housing 1, and the partition groove 163 is between these two holes. The flexible colloid 31 has a ring structure. The side of the flexible colloid 31 is provided with a blocking part 33 that cooperates with the partition groove 163 to isolate the water inlet end 161 and the water outlet end 162, and at the same time cut off the conveying channel 4 and seal its end, so that the liquid can only flow from the water inlet end 161 to the water outlet end 162. Preferably, the water inlet end 161 and the water outlet end 162 are arranged in parallel.

[0040] The extrusion device 2 includes a drive assembly 21. Based on the above embodiment, the conveying channel 4 has already formed a sealed structure. The sealing structure does not involve the drive assembly 21, so the drive assembly 21 can be installed with the help of external fasteners. Of course, for modularity and stability, the drive assembly 21 will be installed with the housing 1 as a fastener. The drive assembly 21 is usually composed of a drive motor and a reduction gear assembly. An eccentric crankshaft 22 is installed at the output end of the drive assembly 21. The center of the flexible colloid 31 is provided with a first through groove 34 for the crankshaft 22 to pass through. The first through groove 34 is adapted to the crankshaft 22. That is to say, in this embodiment, the flexible colloid 31 is solid and only has the first through groove 34. Of course, the first through groove 34 can be connected to the crankshaft 22 by a non-interference fit. That is, the inner diameter of the first through groove 34 is slightly larger than the outer diameter of the crankshaft 22, and a small gap is maintained between them. Preferably, lubricating oil is provided in the gap. At the same time, the crankshaft 22 can be easily pulled out from the first through groove 34 during maintenance, which is convenient for maintenance.

[0041] During operation, the crankshaft 22 is driven to rotate periodically by the drive component 21. Assuming that the crankshaft 22 moves counterclockwise, it squeezes the front conveying channel 4, causing the space of the rear conveying channel 4 to expand and form a vacuum. This generates negative pressure, drawing liquid from the inlet end 161 into the rear conveying channel 4. When the crankshaft 22 moves across the outlet end 162, the liquid in the conveying channel 4 will be output from the outlet end 162.

[0042] However, since the crankshaft 22 is eccentrically set, when the crankshaft 22 is stationary, the biased position of the crankshaft 22 will cause the outer side of the flexible colloid 31 to remain in contact with the housing 1. If it is not used for a long time, the flexible colloid 31 will stick to the inner wall of the housing 1. The flexible colloid 31 cannot recover its state through elastic deformation, which will cause the peristaltic pump to be unusable and require disassembly and maintenance. In order to solve this technical problem, a rigid body 32 is embedded in the flexible colloid 31 in this embodiment. The center of the rigid body 32 is provided with a hole 324 for the crankshaft to pass through.

[0043] The first implementation method, as described below Figure 7 There is one rigid body 32. The rigid body 32 is prefabricated and then the flexible colloid 31 is wrapped in it by secondary injection molding. Since the flexible colloid 31 can be elastically deformed, the rigid body 32 can also be assembled into the flexible colloid 31 by strong pressure.

[0044] The second implementation method, as referred to Figure 6 There are two rigid bodies 32, which are respectively embedded in the upper and lower ends of the flexible colloid 31. The hole 324 of the rigid body 32 corresponds to the first through groove 34 of the flexible colloid 31. Of course, the hole 324 in the rigid body 32 located at the upper end can be a blind hole.

[0045] Regardless of which method is used, the corresponding function can be achieved. The second implementation method will be further explained below:

[0046] In this embodiment, a rigid body 32 is embedded in the upper and lower ends of the flexible colloid 31. The rigid body 32 is plate-shaped and has a certain thickness. It is embedded in the upper and lower ends of the flexible colloid 31. The crankshaft 22 is inserted from the bottom of the flexible colloid 31 and passes through at least one rigid body 32. The other end of the crankshaft 22 can also pass through another rigid body 32 and be flush with or slightly lower than the end face of the other rigid body 32. In any case, as long as the force is transmitted, it is acceptable.

[0047] Based on the fact that the flexible colloid 31 is integrally formed and the first through groove 34 is located at the center of the flexible colloid 31, while the crankshaft 22 is eccentrically set, the main function of the rigid body 32 is to change the flexible state of the flexible colloid 31 near the first through groove 34, forming a follower structure 5 that can follow the crankshaft 22. The follower structure 5 is eccentric relative to the entire flexible colloid 31 with the crankshaft 22 as the center.

[0048] When stationary, the offset position of crankshaft 22 will keep the flexible colloid 31 in close contact with the inner wall of housing 1. Since the follower structure 5 follows the crankshaft 22 to one side, the inner diameter of the conveying channel 4 in the opposite direction of crankshaft 22 reaches its maximum at this time. When not used for a long time, the outer wall of the flexible colloid 31 in close contact will stick to the inner wall of housing 1. By rotating crankshaft 22, the follower structure 5 will move eccentrically relative to the flexible colloid 31. When crankshaft 22 rotates to the position relative to the sticking position, the stretching amplitude of the sticking position reaches its maximum under the action of follower structure 5. Through repeated periodic rotations, the sticking position is repeatedly pulled, and then the sticking position can be separated.

[0049] Furthermore, in the prior art, the extrusion device 2 directly applies force to the inner wall of the flexible colloid 31 during operation. The frictional force generated by the periodic movement of the extrusion device 2 on the flexible colloid 31 may cause tearing of the flexible colloid 31, affecting its service life. In this embodiment, the rolling wear-resistant tube 35 is installed in the first through groove 34, and a second through groove 351 is formed in the rolling wear-resistant tube 35. The rolling wear-resistant tube 35 is fixedly connected to the upper and lower rigid bodies 32. The crankshaft 22 passes through the second through groove 351 of the rolling wear-resistant tube 35. The relative position of the rolling wear-resistant tube 35 and the flexible colloid 31 is fixed, and the rolling wear-resistant tube 35... The grinding tube 35 is fixed by the rigid bodies 32 at the upper and lower ends, so there will be no large friction between the rolling wear-resistant tube 35 and the flexible colloid 31. The crankshaft 22 will not directly contact the flexible colloid 31 when it is in operation, thereby extending the service life of the flexible colloid 31. Preferably, the inner diameter of the second through groove 351 is slightly larger than the outer diameter of the crankshaft 22, forming a gap between them. When the crankshaft 22 rotates, it can fully contact the inner wall of the rolling wear-resistant tube 35 and form rolling friction. Preferably, lubricating oil is provided in the gap. At the same time, the crankshaft 22 can be easily pulled out from the second through groove 351 during maintenance, which is convenient for maintenance.

[0050] In this embodiment of the present invention, the crankshaft 22 includes a transmission part 221. One end of the transmission part 221 is connected to the drive assembly 21, and the other end is provided with a connecting part 222. The connecting part 222 is provided with an abutting part 223. The abutting part 223 is eccentrically arranged with the transmission part 221, wherein both the transmission part 221 and the abutting part 223 are rods.

[0051] In this embodiment of the present invention, the flexible colloid 31 is provided with a locking position 36 adapted to the rigid body 32. The rigid body 32 includes a fixing block 321. A plurality of interlocking blocks 322 are provided at intervals on the outer periphery of the fixing block 321. The fixing block 321 is circular so that the whole forms a divergent shape, so that the rigid body 32 and the flexible colloid 31 can be better fixed and the force is uniform. The inner surface of the flexible colloid 31 forming the conveying channel 4 is an arc surface. Therefore, the interlocking block 322 is provided with an arc surface 323 adapted to the position near the conveying channel 4.

[0052] One embodiment of the present invention regarding the housing 1 specifically includes a bottom shell 11, a middle shell 12, and an end cap 13. The upper end face of the middle shell 12 is provided with an upper locking groove 141, and the lower end face is provided with a lower locking groove 142. The upper edge and lower edge of the flexible colloid 31 are respectively provided with an upper locking part 341 that cooperates with the upper locking groove 141 and a lower locking part 342 that cooperates with the lower locking groove 142. The bottom shell 11 is used to install the drive motor and is installed at the lower end of the middle shell 12, cooperating with the middle shell 12 to press the lower edge of the flexible colloid 31. The end cap 13 is used to seal the cavity 15 and is installed at the upper end of the middle shell 12, cooperating with the middle shell 12 to press the upper edge of the flexible colloid 31. Through the above structure, the flexible colloid 31 can be fixed and a sealing structure can be achieved at the same time.

[0053] The bottom surface of the end cap 13 is provided with a plurality of first positioning posts 131, the upper surface of the middle shell 12 is provided with a plurality of first positioning holes 121 that cooperate with the first positioning posts 131; the upper surface of the bottom shell 11 is provided with a plurality of second positioning posts 111, and the lower surface of the middle shell 12 is provided with a plurality of second positioning holes 122 that cooperate with the second positioning posts 111, which facilitates assembly.

[0054] This utility model also provides a steam straightening comb that includes the above-mentioned improved peristaltic pump. Since the steam straightening comb and the improved peristaltic pump embodiment of this utility model are based on the same concept, they bring the same technical effects. For details, please refer to the description in the improved peristaltic pump embodiment of this utility model, which will not be repeated here.

[0055] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0056] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An improved peristaltic pump, comprising a housing (1) and a squeezing device (2), characterized in that: A cavity (15) is formed inside the shell (1). A flexible colloid (31) is provided in the cavity (15). The upper and lower edges of the flexible colloid (31) are sealed to the shell (1) respectively. A rigid body (32) is embedded and connected in the flexible colloid (31). A conveying channel (4) for liquid flow is formed between the inner side of the flexible colloid (31) and the inner wall of the shell (1). The two ends of the conveying channel (4) correspond to the water inlet (161) and the water outlet (162) on the shell (1) respectively. A partition groove (163) is provided inside the shell (1). A blocking part (33) that cooperates with the partition groove (163) is provided on the side of the flexible colloid (31) to isolate the water inlet (161) and the water outlet (162). The extrusion device (2) includes a drive assembly (21). An eccentric crankshaft (22) is installed at the output end of the drive assembly (21). The rigid body (32) has a hole (324) at its center for the crankshaft (22) to pass through. The hole (324) is adapted to the crankshaft (22) and combines with the rigid body (32) and part of the flexible colloid (31) to form a follower structure (5). The follower structure (5) follows the eccentric movement of the crankshaft (22).

2. The improved peristaltic pump of claim 1 wherein: A rolling wear-resistant tube (35) is installed in the rigid body (32), and a second through groove (351) is formed in the rolling wear-resistant tube (35). The crankshaft (22) passes through the second through groove (351) in the rolling wear-resistant tube (35).

3. A peristaltic pump as claimed in claim 2, wherein: Two rigid bodies (32) are provided and installed opposite each other at the upper and lower ends of the flexible colloid (31), and the rolling wear-resistant tube (35) connects the upper and lower rigid bodies (32) at the same time; Alternatively, the rigid body (32) may be a single unit, embedded inside the flexible colloid (31), and the rolling wear-resistant tube (35) may be fixedly connected to the rigid body (32).

4. The improved peristaltic pump of claim 2 wherein: The crankshaft (22) includes a transmission part (221), one end of which is connected to the drive assembly (21), and the other end is provided with a connecting part (222). The connecting part (222) is provided with an abutting part (223), and the abutting part (223) is eccentrically disposed with respect to the transmission part (221).

5. The improved peristaltic pump of claim 1 wherein: The flexible colloid (31) is provided with a locking position (36) adapted to the rigid body (32). The rigid body (32) includes a fixing block (321), and a plurality of interlocking blocks (322) are provided at intervals on the outer periphery of the fixing block (321).

6. The improved peristaltic pump of claim 1 wherein: The housing (1) includes a bottom shell (11), a middle shell (12), and an end cap (13); The upper end face of the middle shell (12) is provided with an upper slot (141) and the lower end face is provided with a lower slot (142). The upper edge and lower edge of the flexible colloid (31) are respectively provided with an upper snap-fit ​​part (341) that cooperates with the upper slot (141) and a lower snap-fit ​​part (342) that cooperates with the lower slot (142). The bottom shell (11) is used to install the drive assembly (21) and is installed at the lower end of the middle shell (12), and cooperates with the middle shell (12) to press the lower edge of the flexible colloid (31); The end cap (13) is installed on the upper end of the middle shell (12) and cooperates with the middle shell (12) to press the upper edge of the flexible colloid (31).

7. The improved peristaltic pump of claim 6 wherein: The bottom surface of the end cap (13) is provided with a plurality of first positioning posts (131), and the upper surface of the middle shell (12) is provided with a plurality of first positioning holes (121) that cooperate with it. The upper end face of the bottom shell (11) is provided with a number of second positioning posts (111), and the lower end face of the middle shell (12) is provided with a number of second positioning holes (122) that cooperate with it.

8. The improved peristaltic pump of claim 1 wherein: The inlet (161) and outlet (162) are arranged in parallel.

9. The improved peristaltic pump of claim 4 wherein: The rolling wear-resistant tube (35) is made of metal. The inner diameter of the second through groove (351) is slightly larger than the outer diameter of the crankshaft (22). A gap is maintained between the second through groove (351) and the crankshaft (22), and lubricating oil is provided in the gap.

10. A steam straightening comb characterized by: A modified peristaltic pump comprising any one of claims 1 to 9.

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