Flexible rubber connecting piece for neck-hung electric fan and neck-hung electric fan thereof

Abstract

The utility model discloses a flexible rubber connecting piece for a neck hanging type electric fan and the neck hanging type electric fan. The flexible rubber connecting piece comprises a flexible rubber part (130), two hard rubber parts (110 and 120) and a flexible pipe (140). The hard rubber parts are fixedly arranged at the two ends of the center through hole of the soft rubber part in a sleeving mode and used for installing two parts of the neck hanging type electric fan. The flexible pipe penetrates through the central through hole of the soft rubber part, and two ends of the flexible pipe are embedded into the central through hole of the hard rubber part. The neck hanging type electric fan adopting the flexible rubber connecting piece is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model belongs to a universal adjusting piece for daily equipment, in particular to a soft rubber connecting piece for a neck-hanging electric fan, and also to a neck-hanging electric fan comprising the soft rubber connecting piece. Background Art

[0002] The neck-hanging electric fan has a built-in rechargeable battery and is similar in shape to an Ω-shaped headset, with a balanced weight on the left and right halves and a fan at at least one end. Its adjustment mechanism is also similar to an Ω-shaped headset, including a length adjustment part and a rotating joint located behind the fan to adjust the direction of the fan's air outlet.

[0003] Flexible tubes are commonly used in the joints and bends of table lamps, kitchen and bathroom water pipes, and exhaust ducts. The radial outer side is set as an alloy wire spiral or has multiple hard rubber rings. The inside forms a pipeline or a pipeline is passed through it, and the inner and outer surfaces are provided with a protective film or protective coating. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to improve the regulating mechanism of the neck-hanging electric fan for the convenience of use.

[0005] The first aspect of the utility model discloses a soft rubber connector for a neck-mounted electric fan.

[0006] The inventor named the soft rubber connector "gooseneck".

[0007] The soft rubber connector includes:

[0008] A soft rubber portion configured in a tubular shape and having a central through hole extending along a central longitudinal axis;

[0009] Two hard rubber parts, each having a central through hole, are fixedly sleeved at both ends of the central through hole of the soft rubber part in a one-to-one correspondence, and are respectively used to install the two parts (200, 300) of the neck-hanging electric fan; and

[0010] A flexible tube is configured as an alloy wire spiral body, is passed through the central through hole of the soft rubber part, and two ends thereof are embedded in the central through holes of the two hard rubber parts in a one-to-one correspondence.

[0011] In some embodiments of the present application, it can be selected that the soft rubber connector has a strip-shaped appearance and is used to connect two parts of the neck-mounted electric fan that are symmetrical in appearance.

[0012] In some embodiments of the present application, it can be selected that

[0013] One end of the hard rubber part is embedded in the central through hole of the soft rubber part, and the other end is exposed and provided with an assembly through hole.

[0014] In some embodiments of the present application, it can be selected that

[0015] The hard rubber part is configured as a PP part, a PVC part or an ABS part;

[0016] The soft rubber part is configured as a silicone rubber part, a TPU part or a PVC part, and is bonded to the hard rubber part by an adhesive, or is directly bonded to the preformed hard rubber part during injection molding.

[0017] In some embodiments of the present application, it can be selected that the hard rubber part is bonded to the soft rubber part by an adhesive, and one end is provided with a cut-angle structure so as to be inserted into the central through hole of the soft rubber part.

[0018] In some embodiments of the present application, the flexible tube may be composed of two alloy wires spirally wound in parallel.

[0019] A second aspect of the utility model discloses a neck-hanging electric fan.

[0020] The neck-hanging electric fan is in a strip shape and comprises:

[0021] A soft rubber connector as described in the first aspect;

[0022] The first part is configured as a bar with a fan at the front; and

[0023] The rear end of the second part is connected to the rear end of the first part through the soft rubber connector.

[0024] In some embodiments of the present application, it can be selected that another fan or a rechargeable battery is installed at the front end of the second part.

[0025] By implementing the technical solution of the utility model, the following beneficial effects can be obtained.

[0026] The utility model discloses a soft rubber connector for a neck-mounted electric fan and the neck-mounted electric fan. The soft rubber connector comprises a soft rubber part, two hard rubber parts and a flexible tube. The hard rubber part is fixedly sleeved at both ends of a central through hole of the soft rubber part and is used to install the two parts of the neck-mounted electric fan. The flexible tube is inserted into the central through hole of the soft rubber part and the two ends are embedded in the central through hole of the hard rubber part. The neck-mounted electric fan adopting the soft rubber connector has a simple structure and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following drawings should be used in conjunction with the detailed description.

[0028] Figure 1 This is an exploded view of the soft rubber connector in the first embodiment, from a top view;

[0029] Figure 2 is a schematic diagram of the assembly relationship between the soft rubber part and the hard rubber part in the first embodiment;

[0030] Figure 3 is a schematic diagram of an assembly of a soft rubber portion and a hard rubber portion in the first embodiment;

[0031] Figure 4 It is an exploded view of the neck-mounted electric fan of the second embodiment. DETAILED DESCRIPTION

[0032] The embodiments are described below with reference to the accompanying drawings.

[0033] In this specification, unless otherwise specified, one embodiment, some embodiments and other embodiments are used to distinguish different embodiments and do not refer to all embodiments; the accompanying drawings are schematic diagrams, not proportional drawings; the directions / positions indicated by top, bottom, center, edge, inside, outside, far, near, length, width, vertical, horizontal, up, down, left, right, etc., based on the observation angle of the accompanying drawings, cannot be understood as the components / devices are located in specific positions and facing specific directions; ordinal words such as first, second, third, etc., do not have a sequential meaning when used to distinguish components / devices with the same function / name.

[0034] In this specification, the front end and the rear end are relative to the wearer of the neck-hanging electric fan.

[0035] Embodiment 1

[0036] A soft rubber connector 100 for a neck-mounted electric fan is disclosed.

[0037] See also Figure 4 The soft rubber connector 100 has a strip-shaped shape and is used to be centrally connected between the first part 200 and the second part 300 of a neck-mounted electric fan.

[0038] See also Figure 1 , Figure 2 and Figure 3 The soft rubber connector 100 includes a soft rubber portion 130 , a first hard rubber portion 110 , a second hard rubber portion 120 and a flexible tube 140 .

[0039] The soft rubber part 130 is configured as a TPE flat tube, which has a soft touch and a certain length. Therefore, the inventor named the soft rubber connector 100 as a "goose neck" or a "swan neck".

[0040] Specifically, the soft rubber part 130 is configured as a thermoplastic elastomer (TPE) component of polyurethane, styrene, olefin, diene or vinyl chloride. Most thermoplastic elastomers are rubber materials, also known as thermoplastic rubber (TPR).

[0041] The soft plastic part 130 is provided with a central through hole extending along the central longitudinal axis. The inner diameters of the two ends of the central through hole are larger so as to install the first hard plastic part 110 and the second hard plastic part 120 .

[0042] A plurality of grooves 131 extending along the long axis direction are provided on the side of the soft rubber part 130 facing away from the human neck. The grooves 131 are beneficial to the flexible deformation of the soft rubber part 130 and can also increase the surface friction.

[0043] The first hard rubber portion 110 is used to mount the first portion 200 of the neck-mounted electric fan.

[0044] The second hard rubber portion 120 is used to mount the second portion 300 of the neck-mounted electric fan.

[0045] The two hard plastic parts 110 and 120 have basically the same structure and are both configured as thick plate-shaped PP parts. The two are fixedly sleeved on both ends of the central through hole of the soft plastic part 130 in a one-to-one correspondence. PP is the abbreviation of polypropylene in English.

[0046] The two hard plastic parts 110 and 120 are both provided with a central through hole to accommodate the end of the flexible tube 140, and one end of each is fixedly embedded in the central through hole of the soft plastic part 130, and the other end of each is exposed to connect the first part 200 and the second part 300 of the neck-mounted electric fan.

[0047] The exposed end of the first hard plastic part 110 is provided with two assembly through holes 111 so as to be assembled with the first part 200 of the neck-mounted electric fan. The exposed end of the second hard plastic part 120 is provided with two assembly through holes 121 so as to be assembled with the second part 300 of the neck-mounted electric fan.

[0048] The non-exposed end of the first hard plastic part 110 is provided with a cut-off structure 112 for inserting into the central through hole of the soft plastic part 130. The non-exposed end of the second hard plastic part 120 is provided with a cut-off structure 122 for inserting into the central through hole of the soft plastic part 130.

[0049] The flexible tube 140 is inserted into the central through hole of the soft rubber part 130, and its fully stretched length is greater than the fully stretched length of the soft rubber part 130, so that its two ends are correspondingly embedded in the central through holes of the two hard rubber parts 110 and 120. With this structure, the flexible tube 140 can be prevented from piercing the soft rubber part 130.

[0050] During injection molding, the soft plastic portion 130 is directly bonded to the first hard plastic portion 110 and the second hard plastic portion 120 to form a whole, so that the central through holes of the three portions are interconnected to form a through hole 100 a .

[0051] The flexible tube 140 is inserted into the through hole 100 a from one end during assembly and is pulled out of the through hole 100 a from one end during disassembly. The end of the wire is trimmed or bent so as not to pierce the soft rubber part 130 .

[0052] The flexible tube 140 is configured as a spiral of alloy wires.

[0053] Specifically, the flexible tube 140 is composed of two alloy wires that are spirally wound in parallel, and the manufacturing process thereof includes the following steps:

[0054] S10, providing a galvanized iron wire 142 and a spring steel wire 141 with a diameter of 1.0, 1.2, 1.3, 1.5, 1.7, 1.8 or 2.0 mm;

[0055] S20, winding the spring steel wire 141 under heating conditions so that the coils are densely arranged without gaps, thereby obtaining a single wire spiral;

[0056] S30, pressing the galvanized iron wire 142 so that the cross section of the galvanized iron wire 142 is substantially triangular;

[0057] S40, winding the galvanized iron wire 142, so that the galvanized iron wire 142 is pressed into the windings of the above-mentioned single wire spiral body and the tip of the cross section is embedded in the gap between the windings, thereby obtaining a double wire spiral body.

[0058] S50. Cut the double-wire spiral body to obtain a plurality of flexible tubes 140 of a predetermined length.

[0059] The heating temperature in step S20 needs to be determined according to the material specification of the spring steel wire 141 , and the details can be found in the relevant alloy manual.

[0060] In another embodiment, the soft rubber portion 130 is a silicone rubber member.

[0061] In another embodiment, the soft rubber portion 130 is a TPU member. TPU is the abbreviation of Thermoplastic polyurethane rubber (thermoplastic polyurethane elastomer).

[0062] In another embodiment, the soft rubber part 130 is a PVC member. PVC is the abbreviation of Polyvinyl chloride.

[0063] In another embodiment, the two hard rubber parts 110 and 120 are both PVC parts, which are more rigid than the soft rubber part 130 made of PVC due to different material additives and configurations.

[0064] In another embodiment, the two hard rubber parts 110 and 120 are both ABS. ABS is the abbreviation of Acrylonitrile-styrene-butadiene ternary copolymer.

[0065] In another embodiment, the two hard plastic parts 110 and 120 are completely embedded in the end of the central through hole of the soft plastic part 130. When assembled as a neck-mounted electric fan, the assembly bolts pass through the hard plastic part and the soft plastic part.

[0066] In another embodiment, the main body of the soft rubber connector 100 is cylindrical, with flat ends for embedding into the two parts of the housing of the neck-mounted electric fan.

[0067] In other embodiments, the soft rubber part 130, the first hard rubber part 110 and the second hard rubber part 120 are bonded together by an adhesive. One of the bonding interfaces usually needs to be pre-treated. For example, for silicone rubber parts, the bonding surface is treated with a treatment agent KEYDAKKD770, and the treatment agent is allowed to evaporate for 0.5 minutes before bonding with KD833 glue. For another example, for polypropylene parts, the bonding surface is pre-coated with a primer, and the primer contains a silane coupling agent, a titanate, an isocyanate compound or an organosilicon compound, and then bonded with KD833 glue.

[0068] Embodiment 2

[0069] Disclosed is a neck-hanging electric fan.

[0070] See also Figure 4 The neck-mounted electric fan includes a first part 200, a second part 300, and the soft rubber connector 100 of the first embodiment.

[0071] The first part 200 and the second part 300 have the same mass and are mirror images of each other. That is, in the neck-hanging electric fan, the first part 200 and the second part 300 are bilaterally symmetrical in appearance.

[0072] The first part 200 is configured in a strip shape and has an appearance similar to a handheld shower head. The front end of the first part 200 (which may be referred to as the first part front end 210) is enlarged and has a fan disposed therein. The rear end of the first part 200 (which may be referred to as the first part rear end 220) is thinner than the first part front end 210 and is fixedly connected to the first hard rubber part 110 of the soft rubber connector 100 by bolts.

[0073] The second part 300 has a substantially identical structure to the first part 200. Another fan is disposed in the front end 310 of the second part. The rear end 320 of the second part is fixedly connected to the second hard plastic part 120 of the soft plastic connector 100 by bolts.

[0074] That is, the second rear end 320 and the first rear end 220 are connected as a whole through the soft rubber connector 100 .

[0075] A rechargeable battery and a control circuit board are also provided inside the first part 200 and / or the second part 300, and the power supply line and the control line between the two pass through the flexible tube 140. The specific structure is similar to the commercially available neck-hanging electric fan or Ω-shaped Bluetooth headset, and no further description is needed here.

[0076] When the neck-hanging electric fan is used, it is hung on the neck of a human body, with the first front end 210 and the second front end 310 facing each other and being located together in front of the human body's shoulders. When the air outlet direction of the fan needs to be adjusted, the first front end 210 and the second front end 310 are held by both hands to adjust the opening and closing angles of the two and the respective fan axial directions.

[0077] The neck-mounted electric fan has the following technical advantages:

[0078] 1) The structure is simple, and the soft rubber connector 100 is used as a joint, which can simplify the manufacturing process and reduce the cost.

[0079] 2) Reliable performance and easy to use. The opening and closing angles of a pair of fans can be adjusted, and the air outlet direction of each fan can be adjusted individually.

[0080] In other embodiments, the front end 310 of the second part is not provided with a fan, but only with a rechargeable battery; the soft rubber connector 100 is adjacent to the fan and located behind the fan; on the premise that the neck-hanging electric fan is stable to wear, the shapes of the left and right parts thereof may be asymmetrical.

[0081] The above embodiments, application examples and technical analysis are intended to introduce the technical concept and features of the utility model so that those skilled in the art can implement the technical solution of the utility model, and do not constitute any limitation on the protection scope of the utility model. Simple changes and equivalent transformations to the above embodiments are within the protection scope of the utility model.

Claims

1. A soft rubber connector (100) for a neck-mounted electric fan, characterized in that include: A soft rubber portion (130) configured in a tubular shape and provided with a central through hole extending along a central longitudinal axis; The two hard rubber parts (110, 120) are each provided with a central through hole, and are fixedly sleeved at both ends of the central through hole of the soft rubber part in a one-to-one correspondence, and are respectively used to install the two parts (200, 300) of the neck-hanging electric fan; and A flexible tube (140) is configured as an alloy wire spiral body, is passed through the central through hole of the soft rubber part, and has two ends which are embedded in the central through holes of the two hard rubber parts in a one-to-one correspondence.

2. The soft rubber connector according to claim 1, characterized in that: Its appearance is in the shape of a strip plate, and it is used to connect two parts of the neck-hanging electric fan that are symmetrical in appearance.

3. The soft rubber connector according to claim 2, characterized in that: The side of the soft rubber part facing away from the neck is provided with a plurality of grooves extending along the long axis direction.

4. The soft rubber connector according to claim 1, characterized in that: One end of the hard rubber part is embedded in the central through hole of the soft rubber part, and the other end is exposed and provided with an assembly through hole (121).

5. The soft rubber connector according to claim 1, characterized in that: The hard rubber part is configured as a PP part, a PVC part or an ABS part; The soft rubber part is configured as a silicone rubber part, a TPU part or a PVC part, and is bonded to the hard rubber part by an adhesive, or is directly bonded to the preformed hard rubber part during injection molding.

6. The soft rubber connector according to claim 1, characterized in that: The soft rubber part is configured as a thermoplastic elastomer component.

7. The soft rubber connector according to claim 1, characterized in that: The hard rubber part is bonded to the soft rubber part by adhesive, and one end is provided with a cut-angle structure so as to be inserted into the central through hole of the soft rubber part.

8. The soft rubber connector according to claim 1, characterized in that: The flexible tube is composed of two alloy wires which are spirally wound in parallel.

9. A neck-mounted electric fan, which is strip-shaped, characterized in that include: A soft rubber connector according to any one of claims 1 to 8; The first part is configured as a bar with a fan at the front; and The rear end of the second part is connected to the rear end of the first part through the soft rubber connector.

10. The neck-mounted electric fan according to claim 9, characterized in that: Another fan or a rechargeable battery is installed at the front end of the second part.

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