Telescopic insect and fly expelling device

Abstract

The utility model provides a telescopic insect and fly expelling device. The telescopic insect and fly expelling device comprises a bottom sleeve, an extension sleeve, a top sleeve and a fan assembly. Sliding rail structures are arranged between the bottom sleeve and the extension sleeve and between the extension sleeve and the top sleeve. Through the sliding rail structure, the device can be switched between a storage state and a use state; locking devices are arranged at the bottom of the extension sleeve and the bottom of the top sleeve, and each locking device comprises a locking block; the locking block comprises a locking part; the bottom end of the top sleeve and the bottom of the extension sleeve are each provided with a locking hole allowing the locking part to penetrate through. According to the scheme, when not in use, the top sleeve can slide into the extension sleeve, the extension sleeve can slide into the bottom sleeve, the storage space can be saved, in addition, when in use, the locking part abuts against the top end of the bottom sleeve and the top end of the extension sleeve, contraction cannot be achieved if the locking part is not pressed, and due to the arrangement, connection is reliable during unfolding, and use is convenient. The insect and fly repelling device is prevented from being contracted due to misoperation, and normal use is not affected.

Description

Technical Field

[0001] This utility model relates to the field of insect repellent technology, specifically to a retractable insect and fly repellent device. Background Technology

[0002] During the summer when temperatures are high, mosquitoes and flies tend to appear on dining tables, fruit platters, or at stalls. To avoid contaminating fruits or food with mosquitoes and flies, many users use fly-repelling fans to drive them away.

[0003] For example, the flying insect deterrence system and device disclosed in US Patent No. 20200093119, the portable electric fly repellent disclosed in CN1144679060A, and the insect deterrence device disclosed in AU2011100135A3 are all integrated structures that are not retractable and have a large volume, often requiring a large storage space when not in use.

[0004] WO2020151763A1 discloses an electrical device and its support base. The telescopic mechanism of this design includes an inner sleeve and a telescopic rod. The connecting end of the telescopic rod is inserted into the inner sleeve through an opening at the top and is securely connected to the inner sleeve. An electrical component is mounted on the mounting end of the telescopic rod. The telescopic rod of this design has at least two longitudinal arc-shaped grooves spaced apart. Correspondingly, two arc-shaped protrusions are provided on the locking ring to cooperate with these two arc-shaped grooves. The arc-shaped grooves of this design are located on the outer side of the telescopic rod, making them conspicuous and severely affecting the appearance of the product. Furthermore, this design lacks a structure to lock adjacent telescopic rods to prevent the telescopic rods from retracting on their own.

[0005] US Patent No. 20110248040 discloses a collapsible container that can be moved from a folded position, which has a reduced volume for storage and transportation. The collapsible container has multiple outer wall segments, each equipped with a releasable locking device. Specifically, the wall has mating lugs and openings. Preferably, to facilitate locking and releasing the lugs from the openings, the outer surface edges of the lugs are rounded. Typically, the material used to manufacture the outer wall segments has a certain degree of elasticity, thus this structure can lock adjacent outer wall segments to a certain extent. However, after prolonged use, wear and tear can easily lead to unreliable locking.

[0006] Based on the above problems, it is necessary to design a brand-new insect and fly repellent device that has a small storage volume, reduces the space occupied when not in use, can reliably maintain its working state, and is easy to store. Summary of the Invention

[0007] The present invention aims to solve the technical problems of existing insect and fly repellent devices being unable to be stored and having unstable connection structures when deployed.

[0008] To solve the above-mentioned technical problems, this utility model provides a retractable insect and fly repellent device, including a bottom sleeve, one or more extension sleeves slidably disposed inside the bottom sleeve, a top sleeve slidably disposed inside the extension sleeve, and a fan assembly provided on the top sleeve.

[0009] The cross-sectional areas of the bottom sleeve, extension sleeve, and top sleeve gradually increase from top to bottom. A sliding rail structure is provided between the bottom sleeve and the extension sleeve; a sliding rail structure is also provided between the extension sleeve and the top sleeve. Through these sliding rail structures, the insect and fly repellent device can switch between a storage state and a usage state. A locking device is provided at the bottom of both the extension sleeve and the top sleeve. The locking device includes a locking block driven by an elastic element. The locking device also includes an end cap with a groove on it, along which the locking block slides. The locking block includes a locking part. Locking holes are provided at the bottom of both the top sleeve and the bottom of the extension sleeve for the locking part to pass through. When the extension sleeve and the top sleeve are extended to the usage state, the locking part pops out along the locking hole and abuts against the top of the bottom sleeve and the extension sleeve, completing the locking. Pressing down the locking part disengages it from the top of the bottom sleeve and the extension sleeve, and pushing the extension sleeve and the top sleeve allows for storage.

[0010] By setting up a sliding rail structure, when not in use, the top sleeve can slide into the extension sleeve, and the extension sleeve can slide into the bottom sleeve, which can save a lot of storage space. In addition, when in use, the locking part abuts against the top of the bottom sleeve and the extension sleeve. If the locking part is not pressed, it cannot be retracted. This setting can ensure reliable connection when unfolded and prevent accidental retraction of the insect and fly repellent device, which would affect normal use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the unfolded state of an embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of the storage state according to an embodiment of the present utility model;

[0013] Figure 3 This is a top view of an embodiment of the present utility model;

[0014] Figure 4 for Figure 3 Sectional view of plane AA;

[0015] Figure 5 for Figure 3 Sectional view of the middle BB surface;

[0016] Figure 6 for Figure 5 Enlarged view at point C;

[0017] Figure 7 This is an exploded structural diagram of an embodiment of the present utility model;

[0018] Figure 8 for Figure 7 Enlarged view at point D;

[0019] Figure 9 This is a schematic diagram of the top sleeve in an embodiment of the present invention;

[0020] Figure 10 This is a schematic diagram of the fan blade assembly in an embodiment of the present utility model;

[0021] Figure 11 for Figure 7 Enlarged view at point E in the middle;

[0022] Figure 12 This is a structural schematic diagram from another perspective of an embodiment of the present utility model. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1 to 2 As shown, a retractable insect and fly repellent device includes a bottom sleeve 1, one or more extension sleeves 2 slidably disposed inside the bottom sleeve 1, a top sleeve 3 slidably disposed inside the extension sleeves 2, and a fan assembly 4 disposed on the top sleeve 3.

[0025] In this embodiment, there is one extension sleeve 2, and the cross-sectional areas of the bottom sleeve 1, the extension sleeve 2, and the top sleeve 3 gradually increase from top to bottom.

[0026] like Figure 4 As shown, a slide rail structure 5 is provided between the bottom sleeve 1 and the extension sleeve 2; a slide rail structure 5 is provided between the extension sleeve 2 and the top sleeve 3; the insect and fly repellent device can be switched between storage and use states through the slide rail structure 5.

[0027] like Figure 5 and Figure 6 As shown, an inwardly extending first retaining ring 12 is provided at the top of the extension sleeve 2 and the top of the bottom sleeve 1; an outwardly extending second retaining ring 23 is provided at the bottom of the top sleeve 3 and the bottom of the extension sleeve 2. In use, the first retaining ring 12 and the second retaining ring 23 abut against each other to prevent the bottom sleeve 1, the extension sleeve 2 and the top sleeve 3 from separating.

[0028] like Figure 7 and Figure 8 As shown, a first limiting groove 230 is provided on the second retaining ring 23.

[0029] The slide rail structure 5 includes two or more sets of track devices provided on the inner walls of the bottom sleeve 1 and the extension sleeve 2, and the track devices are evenly arranged on the inner walls of the bottom sleeve 1 and the extension sleeve 2.

[0030] like Figure 4 , Figure 7 and Figure 8 As shown, in this embodiment, the number of track devices on the bottom sleeve 1 and the extension sleeve 2 are both two sets, and the two sets of track devices are arranged opposite to each other. The track device includes two or more parallel tracks 51. When the insect and fly repellent device is stretched and contracted, the track 51 slides in the first limiting groove 230 to prevent rotation.

[0031] like Figure 5 As shown, the vertical distance from the top of track 51 to the center line of the insect and fly repellent device is L1, and the vertical distance from the bottom of track 51 to the center line of the insect and fly repellent device is L2, where L1 = L2. This arrangement ensures that track 51 remains within the first limiting groove 230, thus guaranteeing the normal operation of the device.

[0032] like Figure 4 As shown, a limiting device 6 is provided on the inner wall of both the bottom sleeve 1 and the extension sleeve 2. The limiting device 6 can prevent the extension sleeve 2 and the top sleeve 3 from swinging when stored.

[0033] like Figure 4 , Figure 7 and Figure 8 As shown, a locking device 7 is provided at the bottom of the extension sleeve 2 and the bottom of the top sleeve 3. The locking device 7 includes a locking block 71 driven by an elastic element.

[0034] The locking device 7 also includes an end cap 70, on which a groove 72 is provided. A locking block 71 slides along the groove 72, and the locking block 71 includes a locking part 712. Locking holes 713 are provided at the bottom ends of the top sleeve 3 and the extension sleeve 2 for the locking part 712 to pass through. Typically, U-shaped grooves are provided at the bottom ends of the top sleeve 3 and the extension sleeve 2. After the end cap 70 is fixed, the end cap 70 and the U-shaped grooves surround each other to form the locking hole 713.

[0035] In this embodiment, the limiting device 6 includes two parallel limiting strips 61, which are respectively located on both sides of the locking hole 713. When stored, the locking part 712 slides between the two limiting strips 61. The limiting strips 61 in the bottom sleeve 1 can prevent the extension sleeve 2 from shifting and shaking, and the limiting strips 61 in the extension sleeve 2 can prevent the top sleeve 3 from shifting and shaking.

[0036] like Figure 4As shown, the vertical distance from the top of the limiting strip 61 to the center line of the insect and fly repellent device is L3, and the vertical distance from the bottom of the limiting strip 61 to the center line of the insect and fly repellent device is L4, where L3 = L4.

[0037] With the resistance of track 51 and limit bar 61, the insect and fly repellent device slides smoothly and stably between bottom sleeve 1, extension sleeve 2 and top sleeve 3 when it extends and retracts.

[0038] like Figure 7 and 8 As shown, two first side plates 721 are provided opposite to each other on one side of the end cap 70. A second side plate 722 is provided on the top of the first side plate 721, offset from the center of the two first side plates 721 by a certain distance. The first side plate 721, the second side plate 722 and the end cap 70 form a sliding groove 72.

[0039] The bottom of the end cap 70, the first side plate 721, and the second side plate 722 form a second limiting groove 720.

[0040] like Figure 8 As shown, the locking block 71 also includes a limiting part 711 that can extend into the second limiting groove 720. The limiting part 711 is inserted into the second limiting groove 720 to prevent the locking block 71 from coming out of the slide groove 72.

[0041] In this embodiment, the elastic element is a spring 74. A spring fixing hole 740 for accommodating the spring 74 is provided inside the locking block 71. The spring 74 is interference-fitted with the spring fixing hole 740.

[0042] like Figure 8 As shown, a baffle 73 for resisting the elastic element is also provided on the end cover 70. A spring guide post 730 is provided on the baffle 73. During operation, one end of the spring 74 is inserted into the spring fixing hole 740, and the other end of the spring 74 is sleeved on the spring guide post 730.

[0043] In this embodiment, there are two baffles 73 on the end cover 70, and the baffles 73 are located between the first side plates 721; a wire hole 75 is provided on the end cover 70 and located between the two baffles 73, and the wire hole 75 is used to pass through the power cord.

[0044] When the extension sleeve 2 and the top sleeve 3 are extended to the working state, the locking part 712 pops out along the locking hole 713 and abuts against the top of the bottom sleeve 1 and the extension sleeve 2 to complete the locking; when the locking part 712 is pressed, the locking part 712 disengages from the top of the bottom sleeve 1 and the extension sleeve 2, and the extension sleeve 2 and the top sleeve 3 are pushed to achieve storage.

[0045] like Figure 7 and Figure 9As shown, a motor housing cavity 32 for mounting a motor is provided at the top of the top sleeve 3.

[0046] In this embodiment, the top of the top sleeve 3 has a mounting portion 31, the cross-sectional area of ​​the mounting portion 31 is smaller than the minimum cross-sectional area of ​​the top sleeve 3, and the motor accommodating cavity 32 is disposed in the mounting portion 31.

[0047] The motor housing 32 extends inward from the top of the top sleeve 3.

[0048] A motor cover plate 33 for sealing the motor housing cavity 32 is also provided at the opening of the motor housing cavity 32.

[0049] like Figure 9 As shown, a set of one or more positioning components 34 are provided on the top surface of the motor accommodating cavity 32. The positioning component 34 has a main positioning block 341 and a guide block 342 is provided on one side of the main positioning block 341. The main positioning block 341 and the guide block 342 form an L-shape.

[0050] A first through hole 343 is provided between the main positioning block 341 and the guide block 342, penetrating the top surface of the motor accommodating cavity 32; a positioning hole (not shown) for positioning the motor is provided on the bottom surface of the motor accommodating cavity 32.

[0051] like Figure 10 As shown, two connecting posts 331 are symmetrically arranged on one side of the motor cover plate 33. A first blind hole 3310 is provided on the connecting post 331. A positioning protrusion 332 for positioning the motor is provided between the two connecting posts 331. During installation, the connecting post 331 is guided by the guide block 342 to approach the main positioning block 341. The first blind hole 3310 corresponds to the first through hole 343. The screw is passed through the first through hole 343 and screwed into the first blind hole 3310 to achieve a tight connection.

[0052] With the above configuration, the guide block 342 can guide and clamp the connecting column 331, facilitating assembly.

[0053] like Figure 10 As shown, the fan assembly 4 includes a motor 40, the shaft of the motor 40 extends through the motor cover plate 33, and a fan blade assembly 8 is provided on the shaft of the motor 40.

[0054] The fan blade assembly 8 includes a first rotating member 81 and a second rotating member 82, both of which have circular cross-sections.

[0055] like Figure 11As shown, a first connecting post 811 is provided at the center of the first rotating member 81, and a second through hole 812 is provided on the first connecting post 811; two or more first positioning posts 813 are also provided on the first rotating member 81, and a second blind hole 814 is provided on the first positioning post 813. In this embodiment, the outer diameter of the second through hole 812 is larger than the outer diameter of the motor 40 shaft, and the cross-section of the second blind hole 814 is a regular polygon.

[0056] like Figure 10 As shown, a second connecting post 821 is provided at the center of the second rotating member 82, a third blind hole 822 is provided on the second connecting post 821, and a second positioning post 823 that can be inserted into the second blind hole 814 is also provided on the second rotating member 82.

[0057] When the first rotating member 81 and the second rotating member 82 are engaged, the second positioning post 823 is inserted into the second blind hole 814, and the second positioning post 823 and the second blind hole 814 are interference-fitted.

[0058] The fan blade assembly 8 also includes a blade 83, which is made of a flexible material. The blade 83 has a connecting part in the middle. A third through hole 831 that can cooperate with the first connecting post 811 and a fourth through hole 832 that can cooperate with the first positioning post 813 are provided on the connecting part. The above configuration can make the connection between the blade 83 and the first rotating member 81 more reliable and tighter.

[0059] When the fan blade assembly 8 is installed on the shaft of the motor 40, the shaft of the motor 40 passes through the second through hole 812 and is inserted into the third blind hole 822, and the shaft of the motor 40 is interference-fitted with the third blind hole 822.

[0060] like Figure 12 As shown, a base plate 15 for sealing the bottom sleeve 1 is provided at the bottom of the bottom sleeve 1, and the base plate 15 is fixed to the bottom sleeve 1 by screws.

[0061] The fan assembly 4 also includes a battery (not shown) and a PCB board 151 mounted on the base plate 15, on which a push-button switch 152 and a charging connector 153 are provided.

[0062] A hole is provided on the bottom sleeve 1 for the push button switch 152 and the charging connector 153 to extend out.

[0063] In another embodiment, the battery is a non-rechargeable battery. In this case, there is no need to set up a PCB board; the motor, push-button switch, and battery can be electrically connected.

[0064] A recessed cavity 150 is provided on the outer side of the base plate 15, and a suspension bracket 16 is rotatably provided in the cavity 150.

[0065] In this embodiment, the suspension frame 16 is U-shaped, with outwardly extending hinge shafts 161 at both ends of the suspension frame 16, and hinge holes corresponding to the hinge shafts 161 at both ends of the cavity 150.

[0066] A boss 155 is provided on the side wall of the cavity 150 for fixing the suspension bracket 16. When the suspension bracket 16 is put into the cavity 150, the boss 155 squeezes the suspension bracket 16 to prevent the suspension bracket 16 from easily coming out of the cavity 150.

[0067] The above solution, by setting the slide rail structure 5, allows the top sleeve 3 to slide into the extension sleeve 2 when not in use, and the extension sleeve 2 to slide into the bottom sleeve 1, which can greatly save storage space. In addition, when in use, the locking part 712 abuts against the top of the bottom sleeve 1 and the extension sleeve 2. If the locking part 712 is not pressed, it cannot be retracted. This setting can make the connection reliable when unfolded and prevent accidental operation that would cause the insect and fly repellent device to retract and affect normal use.

Claims

1. A retractable insect and fly repellent device, comprising a bottom sleeve (1), one or more extension sleeves (2) slidably disposed within the bottom sleeve (1), a top sleeve (3) slidably disposed within the extension sleeves (2), and a fan assembly (4) provided on the top sleeve (3). The cross-sectional areas of the bottom sleeve (1), the extension sleeve (2), and the top sleeve (3) all gradually increase from top to bottom; A slide rail structure (5) is provided between the bottom sleeve (1) and the extension sleeve (2); a slide rail structure (5) is provided between the extension sleeve (2) and the top sleeve (3); the insect and fly repellent device can be switched between storage and use states through the slide rail structure (5); Locking devices (7) are provided at the bottom of the extension sleeve (2) and the bottom of the top sleeve (3), the locking devices (7) including locking blocks (71) driven by elastic elements; The locking device (7) also includes an end cap (70), on which a groove (72) is provided, and a locking block (71) slides along the groove (72). The locking block (71) includes a locking part (712). Locking holes (713) for the locking part (712) to pass through are provided at the bottom end of the top sleeve (3) and the bottom of the extension sleeve (2). When the extension sleeve (2) and the top sleeve (3) are stretched to the working state, the locking part (712) pops out along the locking hole (713) and the locking part (712) abuts against the top of the bottom sleeve (1) and the extension sleeve (2) to complete the locking; when the locking part (712) is pressed down, the locking part (712) disengages from the top of the bottom sleeve (1) and the extension sleeve (2), and the extension sleeve (2) and the top sleeve (3) are pushed to achieve storage.

2. The retractable insect-repelling fly-repelling device according to claim 1, characterized in that: Both the top end of the extension sleeve (2) and the top end of the bottom sleeve (1) are provided with an inwardly extending first retaining ring (12); both the bottom end of the top sleeve (3) and the bottom end of the extension sleeve (2) are provided with an outwardly extending second retaining ring (23); in use, the first retaining ring (12) and the second retaining ring (23) abut against each other, and a first limiting groove (230) is provided on the second retaining ring (23); The slide rail structure (5) includes two or more sets of track devices on the inner walls of the bottom sleeve (1) and the extension sleeve (2). The track devices are evenly arranged on the inner walls of the bottom sleeve (1) and the extension sleeve (2). The track devices include two or more parallel tracks (51). When the insect and fly repellent device is stretched and contracted, the track (51) slides in the first limiting groove (230) to prevent rotation.

3. The retractable insect-repelling fly-repelling device according to claim 1, characterized in that: Two first side plates (721) are provided opposite to each other on one side of the end cap (70). A second side plate (722) is provided on the top of the first side plate (721) and offset a certain distance from the center of the two first side plates (721). The first side plate (721), the second side plate (722) and the end cap (70) form a groove (72). The bottom of the end cap (70), the first side plate (721), and the second side plate (722) form a second limiting groove (720); The end cap (70) is also provided with a baffle (73) for resisting the elastic element.

4. The retractable insect-repelling fly-repelling device according to claim 3, characterized in that: The locking block (71) also includes a limiting part (711) that can extend into the second limiting groove (720), the limiting part (711) preventing the locking block (71) from coming out of the slide groove (72).

5. The retractable insect-repelling fly-repelling device according to claim 3, characterized in that: The elastic element is a spring (74), and a spring fixing hole (740) for accommodating the spring (74) is provided inside the locking block (71). The spring (74) and the spring fixing hole (740) are interference fit. A spring guide post (730) is provided on the baffle (73). When working, one end of the spring (74) is inserted into the spring fixing hole (740), and the other end of the spring (74) is sleeved on the spring guide post (730).

6. The retractable insect-repelling fly-repelling device according to claim 3, characterized in that: The number of baffles (73) is two; the baffles (73) are located between the two first side plates (721); a wire hole (75) is provided on the end cap (70) and located between the two baffles (73).

7. The retractable insect and fly repellent device according to claim 1, characterized in that: Limiting devices (6) are provided on the inner walls of the bottom sleeve (1) and the extension sleeve (2). The limiting devices (6) can prevent the extension sleeve (2) and the top sleeve (3) from swinging when stored. The limiting devices (6) include two parallel limiting strips (61). The two limiting strips (61) are respectively located on both sides of the locking hole (713). When stored, the locking part (712) slides between the two limiting strips (61).

8. The retractable insect and fly repellent device according to claim 1, characterized in that: A motor receiving cavity (32) is provided at the top of the top sleeve (3); the motor receiving cavity (32) extends inward from the top of the top sleeve (3), and a motor cover plate (33) is also provided at the opening of the motor receiving cavity (32). The fan assembly (4) includes a motor (40), the shaft of which extends through the motor cover (33), and a fan blade assembly (8) is provided on the shaft of the motor (40).

9. The retractable insect and fly repellent device according to claim 8, characterized in that: The top of the top sleeve (3) has a mounting part (31), the cross-sectional area of ​​which is smaller than the minimum cross-sectional area of ​​the top sleeve (3), and the motor housing cavity (32) is located inside the mounting part (31).

10. The retractable insect and fly repellent device according to claim 8, characterized in that: The fan blade assembly (8) includes a first rotating member (81), a second rotating member (82), and a blade (83), wherein the first rotating member (81) and the second rotating member (82) clamp the blade (83).

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