Heating pipe with spiral flow guide structure for coffee machine

Abstract

The utility model belongs to the field of coffee machines, and particularly relates to a heating pipe with a spiral flow guide structure for a coffee machine, which comprises a heating pipe body, a flow guide rod is fixedly arranged in the heating pipe body, and the upper end and the lower end of the heating pipe body are fixedly connected with end covers. The inner protective cover is arranged at the connecting position of the terminal and the wire for protection, the connecting position of the terminal and the wire is prevented from being affected by humidity inside the coffee machine, magnesium oxide powder is sprayed to the outside of the inner protective cover and the inside of the outer protective cover, and the outside of the inner protective cover can be dried by the magnesium oxide powder at the moment. The internal humidity of the inner protective cover is further prevented from being increased to affect safe use of the terminal and the wire, the flow guide rod made of ceramic materials is arranged in the heating pipe body, the spiral flow guide structure of the flow guide rod can form strong turbulent flow, the convective heat transfer coefficient is increased, and therefore the heat exchange effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of coffee machines, in particular to a heating tube with a spiral guide structure used in coffee machines. Background Art

[0002] During operation, the coffee machine needs to use a heating tube to heat the water source. The heating tube is usually made of materials with good thermal conductivity and high temperature resistance such as stainless steel, copper or aluminum. A spiral guide structure is set inside the heating tube, which can effectively form strong turbulence, thereby enhancing the convective heat transfer coefficient.

[0003] Currently, when using a heating tube, it is necessary to connect the heating alloy wire terminal and the conducting wire. Since the connection between the two is inside the coffee machine, changes in the humidity inside the coffee machine over a long period of use may affect the connection between the two, thereby causing leakage. Therefore, to address the above problem, a heating tube with a spiral guide structure for a coffee machine is proposed. Utility Model Content

[0004] In order to remedy the deficiencies of the prior art and avoid the problem of leakage at the connection portion between the terminal and the wire, the utility model provides a heating tube with a spiral guide structure for a coffee machine.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: a heating tube with a spiral guide structure for a coffee machine, comprising a heating tube body, a guide rod fixedly installed inside the heating tube body, end caps fixedly connected to the upper and lower ends of the heating tube body, flanges provided at the ends of the two end caps away from the heating tube body, a stabilizing rod fixedly connected between the two flanges, and protective components provided at the proximal ends of the two flanges;

[0006] The protection component includes two terminals fixedly installed inside the upper and lower ends of the heating tube body, the terminals are fixedly connected to a wire on the side close to the outside of the heating tube body, the flange is fixedly connected to an inner protective cover on the side away from the end face of the heating tube body, the outer protective cover is fixedly connected to the outside of the inner protective cover on the side of the flange away from the end face of the heating tube body, the inner wall of the outer protective cover is clamped with a nozzle, the upper and lower sides of the outer wall of the outer protective cover are fixedly connected to support plates, the interiors of the two support plates are provided with airbags, the interiors of the airbags are fixedly installed with a buffer spring, the inner wall of the airbags is fixedly installed with an electromagnetic block, the inner wall of the airbag away from the outer protective cover is fixedly installed with a hollow tube, the end of the airbag close to the outer protective cover is fixedly connected to a magnet on the upper and lower sides of the outer protective cover close to one end of the airbag.

[0007] Preferably, the guide rod is made of ceramic material, which can withstand higher pressure and temperature, and the two end covers are connected to the heating tube body by welding.

[0008] Preferably, the connection between the terminal and the wire is located inside the inner protective cover, and the wire passes through the inner protective cover and the outer protective cover to be electrically connected to the external power supply. The inner protective cover can protect the connection between the internal terminal and the wire.

[0009] Preferably, the end of the nozzle facing the interior of the outer protective cover is provided with through holes distributed at equal intervals, and the end of the nozzle away from the outer protective cover is connected to the hollow tube.

[0010] Preferably, magnesium oxide powder is contained inside the airbag, and the magnesium oxide powder inside the airbag can be sprayed into the interior of the outer protective cover through a hollow tube and then a nozzle. At this time, the magnesium oxide powder dries the interior of the outer protective cover and the exterior of the inner protective cover. The left and right ends of the buffer spring are respectively fixedly connected to the left and right sides of the inner wall of the airbag.

[0011] Preferably, the electromagnetic block is electrically connected to a power cord, and a wire groove adapted to the power cord is provided on the surface of the airbag. The adjacent ends of the electromagnetic block and the magnet have opposite magnetic poles, and the operator can independently control the power-on of the electromagnetic block. At this time, the energized electromagnetic block is attracted by the magnet and compresses the airbag, thereby causing the magnesium oxide powder inside the airbag to be ejected.

[0012] The utility model is beneficial in that:

[0013] The utility model provides an inner protective cover at the connection between the terminal and the wire to protect the connection between the terminal and the wire from being affected by the humidity inside the coffee machine. In addition, magnesium oxide powder is sprayed on the outside of the inner protective cover and the inside of the outer protective cover. The magnesium oxide powder can dry the outside of the inner protective cover, further preventing the internal humidity of the inner protective cover from increasing and affecting the safe use of the terminals and wires.

[0014] By arranging a ceramic guide rod inside the heating tube body, the spiral guide structure of the guide rod can form strong turbulence, enhance the convective heat transfer coefficient, and thus improve the heat transfer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the utility model;

[0018] Figure 3 This is a schematic diagram of the protection component structure of the utility model;

[0019] Figure 4 For the utility model Figure 3 Schematic diagram of cross-section structure;

[0020] Figure 5 It is a schematic structural diagram of a cross-section of the airbag of the present invention;

[0021] Figure 6 For the utility model Figure 5 Schematic diagram of the structure enlarged at point A in the middle.

[0022] In the figure: 1. Heating tube body; 2. Guide rod; 3. End cover; 41. Flange; 42. Stabilizer bar; 5. Protection assembly; 51. Terminal; 52. Wire; 53. Inner protective cover; 54. Outer protective cover; 55. Nozzle; 56. Support plate; 571. Airbag; 572. Buffer spring; 573. Electromagnetic block; 574. Hollow tube; 58. Magnet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The following is combined with Figure 1 —6 Further details of this application,

[0025] The embodiment of the present application discloses a heating tube with a spiral guide structure for a coffee machine. Figure 1 A heating tube with a spiral guide structure for a coffee machine includes a heating tube body 1, a guide rod 2 is fixedly installed inside the heating tube body 1, and end caps 3 are fixedly connected to the upper and lower ends of the heating tube body 1. The guide rod 2 is made of ceramic material and can withstand high pressure and temperature. The two end caps 3 are connected to the heating tube body 1 by welding. The ends of the two end caps 3 away from the heating tube body 1 are each provided with a flange 41, a stabilizing rod 42 is fixedly connected between the two flanges 41, and the proximal ends of the two flanges 41 are each provided with a protective component 5;

[0026] Reference Figure 2 - Figure 6 The protection assembly 5 includes two terminals 51 fixedly installed inside the upper and lower ends of the heating tube body 1. The side of the terminal 51 close to the outside of the heating tube body 1 is fixedly connected to a wire 52. The side of the flange 41 away from the end face of the heating tube body 1 is fixedly connected to an inner protective cover 53. The outer side of the inner protective cover 53 on the side of the flange 41 away from the end face of the heating tube body 1 is fixedly connected to an outer protective cover 54. The connection between the terminal 51 and the wire 52 is located inside the inner protective cover 53. The wire 52 passes through the inner protective cover 53 and the outer protective cover 54. 4 is electrically connected to the external power supply, the inner protective cover 53 can protect the connection between the internal terminal 51 and the wire 52, the inner wall of the outer protective cover 54 is clamped with a nozzle 55, the upper and lower sides of the outer wall of the outer protective cover 54 are fixedly connected with supporting plates 56, the interior of the two supporting plates 56 is provided with an air bag 571, the interior of the air bag 571 is fixedly installed with a buffer spring 572, the inner wall of the air bag 571 away from the outer protective cover 54 is fixedly installed with an electromagnetic block 573, and the end of the air bag 571 close to the outer protective cover 54 is fixedly connected with The hollow tube 574 and the nozzle 55 are provided with holes spaced at equal intervals at one end facing the inner side of the outer protective cover 54. The end of the nozzle 55 away from the outer protective cover 54 is connected to the hollow tube 574. The air bag 571 is filled with magnesium oxide powder. The magnesium oxide powder inside the air bag 571 can pass through the hollow tube 574 and then be sprayed into the inner side of the outer protective cover 54 by the nozzle 55. At this time, the magnesium oxide powder dries the inner part of the outer protective cover 54 and the outer part of the inner protective cover 53. The left and right ends of the buffer spring 572 are fixedly connected On the left and right sides of the inner wall of the airbag 571, magnets 58 are fixedly connected on the upper and lower sides of the outer protective cover 54 near one end of the airbag 571. The electromagnetic block 573 is electrically connected to the power cord. The surface of the airbag 571 is provided with a wire groove adapted to the power cord. The adjacent ends of the electromagnetic block 573 and the magnet 58 are opposite magnetic poles. The operator can independently control the electromagnetic block 573 to be energized. At this time, the energized electromagnetic block 573 is attracted by the magnet 58 and compresses the airbag 571, thereby causing the magnesium oxide powder inside the airbag 571 to be ejected.

[0027] Working principle: After the operator completes the installation of the heating tube body 1, the operator can control the electromagnetic block 573 to energize. The electromagnetic block 573 after energization will be attracted by the magnet 58. At this time, the electromagnetic block 573 will drive the airbag 571 to move away from the side of the outer protective cover 54 toward the magnet 58. At this time, the airbag 571 is pulled by the electromagnetic block 573 to compress the buffer spring 572, and at this time the magnesium oxide powder inside the airbag 571 will be sprayed toward the nozzle 55 through the hollow tube 574, and then the magnesium oxide powder will be sprayed toward the inside of the outer protective cover 54. At this time, the magnesium oxide powder is sprayed on the surface of the inner protective cover 53, thereby preventing moisture inside the coffee machine from entering the inside of the inner protective cover 53, thereby protecting the connection between the terminal 51 and the wire 52 inside the inner protective cover 53.

[0028] After the heating tube body 1 is driven, the water flows through the heated heating tube body 1 and flows on the surface of the guide rod 2, thereby accelerating the heating effect of the water flowing through the heating tube body 1.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A heating tube with a spiral flow-guiding structure for a coffee machine, characterized by: The heating tube body (1) comprises a heating tube body (1), a flow guide rod (2) is fixedly installed inside the heating tube body (1), end caps (3) are fixedly connected to the upper and lower ends of the heating tube body (1), flanges (41) are provided at the ends of the two end caps (3) away from the heating tube body (1), a stabilizing rod (42) is fixedly connected between the two flanges (41), and protective components (5) are provided at the adjacent ends of the two flanges (41); The protection assembly (5) includes two terminals (51) fixedly mounted inside the upper and lower ends of the heating tube body (1), a wire (52) is fixedly connected to the side of the terminal (51) close to the outside of the heating tube body (1), an inner protective cover (53) is fixedly connected to the side of the flange (41) away from the end face of the heating tube body (1), an outer protective cover (54) is fixedly connected to the outside of the inner protective cover (53) on the side of the flange (41) away from the end face of the heating tube body (1), a nozzle (55) is clamped on the inner wall of the outer protective cover (54), and the outer protective cover (54) is fixedly mounted on the inner wall of the outer protective cover (54). The upper and lower sides of the outer wall (54) are fixedly connected to support plates (56), the interiors of the two support plates (56) are provided with airbags (571) which are sleeved, the interiors of the airbags (571) are fixedly installed with buffer springs (572), the inner wall of the airbag (571) away from the outer protective cover (54) is fixedly installed with an electromagnetic block (573), the end of the airbag (571) close to the outer protective cover (54) is fixedly connected to a hollow tube (574), and the upper and lower sides of the outer protective cover (54) close to the end of the airbag (571) are fixedly connected to magnets (58).

2. The heating tube with a spiral flow-guiding structure for a coffee machine according to claim 1, characterized in that: The guide rod (2) is made of ceramic material, and the two end covers (3) are connected to the heating tube body (1) by welding.

3. The heating tube with a spiral flow-guiding structure for a coffee machine according to claim 1, characterized in that: The connection point between the terminal (51) and the wire (52) is located inside the inner protective cover (53), and the wire (52) passes through the inner protective cover (53) and the outer protective cover (54) to be electrically connected to an external power supply.

4. The heating tube with a spiral flow-guiding structure for a coffee machine according to claim 1, characterized in that: One end of the nozzle (55) facing the interior of the outer protective cover (54) is provided with through holes distributed at equal intervals, and one end of the nozzle (55) away from the outer protective cover (54) is connected to the hollow tube (574).

5. The heating tube with a spiral flow-guiding structure for a coffee machine according to claim 1, characterized in that: Magnesium oxide powder is contained inside the airbag (571), and the left and right ends of the buffer spring (572) are fixedly connected to the left and right sides of the inner wall of the airbag (571), respectively.

6. The heating tube with a spiral flow-guiding structure for a coffee machine according to claim 1, characterized in that: The electromagnetic block (573) is electrically connected to a power line, and a wire groove adapted to the power line is provided on the surface of the air bag (571). The adjacent ends of the electromagnetic block (573) and the magnet (58) are mutually different magnetic poles.

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