A work light that can accommodate spring wire

Abstract

The utility model relates to a kind of work lights of storable spring wire, including main body, lamp body, and the telescopic pipe, spring wire being set in main body, lamp body is connected in the outer end of telescopic pipe, spring wire is arranged in telescopic pipe, the first end of spring wire is led out from the outer end of telescopic pipe to electrically connect lamp body, the second end of spring wire is led out from the inner end of telescopic pipe to form power connection end, the inner end position of main body close to telescopic pipe has the accommodation area for accommodating the excess part of spring wire.The work light of storable spring wire in the utility model, the excess part of spring wire after deformation can be effectively stored in accommodation area, effectively solve the problem that spring wire cannot be recovered and cannot be effectively completely retracted by interfering telescopic pipe action.Meanwhile, based on the setting of the accommodation area, the elongation ratio of spring wire does not need to be changed, and the diameter size of spring wire does not need to be changed, ensuring its wire diameter, corresponding maintaining the brightness of lamp body of work light.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, specifically to a work lamp with a retractable spring wire. Background Technology

[0002] Work lights are widely used in various fields as a lighting tool. Based on different needs, work lights adopt different structures to suit different working environments and achieve different lighting requirements. One type of work light is designed to be small in size, easy to carry, and usable both indoors and outdoors. To enable small work lights to illuminate distant or confined areas, some work lights with telescopic functions have emerged. For example, the Chinese utility model patent CN222937739U (application number 202422068920.9), entitled "An Outdoor Lighting Lamp," discloses a lighting lamp comprising a main body, a telescopic rod disposed within the main body, and a lighting head disposed at the top of the telescopic rod. The lighting head is electrically connected to a circuit board / battery via a spring wire passing through the telescopic rod, thus providing power to the lighting head and fulfilling its telescopic function. However, in this type of lighting lamp, during prolonged use, the spring wire, after stretching, cannot fully return to its original shape, irregularly blocking the telescopic tube. This causes interference with the small tube inside the telescopic tube, preventing it from being fully retracted and affecting the user experience of the product's telescopic function.

[0003] To address the above issues, the industry currently employs the following methods:

[0004] 1. Eliminate the spring wire and place all electrical components such as the battery, control board, and light source in the light source section. This solution avoids the above problems by eliminating the spring wire. However, because the light source section is small, it cannot accommodate a high-capacity battery, which significantly reduces the product's brightness and working time, making it unsuitable for most application scenarios.

[0005] Second, by increasing the outer diameter of the telescopic tube or shortening its elongation, the elongation ratio of the spring wire can be reduced, thus slowing down its fatigue time. This solution can alleviate the above problems, but it increases the product's storage volume and shortens the light source's elongation, reducing the value of this product category and going against its original design intent.

[0006] Third, reducing the wire diameter of the spring wire can reduce the elongation ratio of the spring wire and alleviate fatigue time. This solution can alleviate the above problems, but the reduction in wire diameter leads to a decrease in current carrying capacity, which significantly reduces the brightness of the product and cannot meet the needs of most application scenarios. Utility Model Content

[0007] The technical problem to be solved by this utility model is to provide a work lamp that can store spring wire while maintaining the elongation ratio of the spring wire and ensuring the wire diameter, thereby avoiding interference with the telescopic function of the telescopic rod.

[0008] The technical solution adopted by this utility model to solve the above problems is as follows: a work lamp that can accommodate spring wire, including a main body, a lamp body, and a telescopic tube and a spring wire disposed in the main body. The lamp body is connected to the outer end of the telescopic tube, and the spring wire is passed through the telescopic tube. The first end of the spring wire is led out from the outer end of the telescopic tube to electrically connect to the lamp body, and the second end of the spring wire is led out from the inner end of the telescopic tube to form a power supply connection end. The main body has a receiving area near the inner end of the telescopic tube for accommodating the excess part of the spring wire.

[0009] In an aesthetically pleasing and convenient manner, the main body is equipped with an electronic control module that is electrically connected to the power supply connection terminal of the spring wire.

[0010] With a simple structure, the telescopic tube and the electronic control module are arranged axially within the main body, and the telescopic tube and the electronic control module are spaced apart to form the receiving area.

[0011] Preferably, the axial distance of the receiving area is L, where 8mm ≤ L ≤ 15mm.

[0012] With a simple structure, the telescopic tube and the electronic control module are arranged axially inside the main body. The telescopic tube includes an outer tube that is fitted inside the main body and at least one inner tube fitted inside the outer tube. The inner end of the outer tube extends axially to the end of the electronic control module, so that the portion of the outer tube that is longer than the inner tube forms the receiving area.

[0013] To facilitate wiring inside the work light, the electronic control module is located on the outside of the telescopic tube, and there is a communication space between the electronic control module and the inner end of the telescopic tube, which constitutes the receiving area.

[0014] For ease of assembly, the main body includes a first housing and a second housing that are relatively aligned.

[0015] In order to effectively fix the telescopic tube without affecting the appearance of the main body, the inner walls of the first and second shells are provided with limiting protrusions, and the outer peripheral wall of the telescopic tube is provided with limiting holes for the protrusions to be inserted.

[0016] In order to better guide the excess spring wire to be evenly distributed in the receiving area, a guide is provided in the receiving area at the position where the second end of the spring wire passes through the telescopic tube. The guide surface of the guide facing the spring wire has an arc-shaped cross section that guides the spring wire to slide towards the receiving position.

[0017] To further reduce the overall size of the work light, the light body is rotatably connected to the outer end of the telescopic tube via a rotating connector.

[0018] Compared with existing technologies, the advantages of this invention are as follows: The retractable spring wire work lamp of this invention has an independent receiving area set up inside the main body near the inner end of the telescopic tube. When the spring wire fatigues and stretches, the excess portion that cannot spring back can be stored in this receiving area, effectively solving the problem of the spring wire interfering with the telescopic tube's movement and preventing complete retraction. Furthermore, based on this receiving area, there is no need to change the spring wire's elongation ratio or diameter, ensuring the wire diameter and maintaining the lamp's brightness. Moreover, the space requirement of the receiving area is small, and it does not significantly increase the main body's size relative to the main body itself, ensuring a compact overall size for the work lamp. Attached Figure Description

[0019] Figure 1 This is a perspective view of the work lamp with retractable spring wire in Embodiment 1 of this utility model.

[0020] Figure 2 This is a cross-sectional view of the retractable spring wire work lamp in Embodiment 1 of this utility model.

[0021] Figure 3 This is a cross-sectional view of the retractable spring wire work lamp in Embodiment 2 of this utility model.

[0022] Figure 4 This is a cross-sectional view of the retractable spring wire work lamp in Embodiment 3 of this utility model.

[0023] Figure 5 This is a cross-sectional view of the retractable spring wire work lamp in Embodiment 4 of this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 and Figure 2 As shown, the retractable spring wire work lamp in this embodiment includes a main body 1, a telescopic tube 2, a lamp body 4, and a spring wire 5.

[0026] The shape of the main body 1 can be specifically designed according to needs, such as being elongated, cubic, circular, or other irregularly shaped structures. In this embodiment, based on the requirement for a compact structure for the work light, the main body 1 is cylindrical in shape. The main body 1 has installation space inside to install structures such as the telescopic tube 2 and the spring wire 5; that is, the telescopic tube 2 and the spring wire 5 are installed inside the main body. To facilitate the installation of these structures inside the main body 1, the main body 1 in this embodiment includes a first housing 11 and a second housing 12 that are relatively aligned. During installation, the telescopic tube 2 and the spring wire 5 are first installed inside the first housing 11, and then the first housing 11 and the second housing are aligned to achieve the mating connection between the two.

[0027] In this embodiment, the lamp body 4 is disposed outside the main body 1. Specifically, the lamp body 4 is connected to the outer end of the telescopic tube 2, and the spring wire 5 passes through the telescopic tube 2. The first end of the spring wire 5 is led out from the outer end of the telescopic tube 2 to electrically connect to the lamp body 4, and the second end of the spring wire 5 is led out from the inner end of the telescopic tube 2 to form a power supply connection end. The second end of the spring wire 5 is used to connect to a power supply device to supply power to the lamp body 4. The power supply device can be an external power bank, an external power supply, etc. In this embodiment, an electronic control module 3 is disposed inside the main body 1 to achieve electrical connection with the spring wire 5, thereby supplying power to the lamp body 4 through the spring wire 5. The use of the electronic control module 3 makes it convenient for the user to move and use the work lamp, and there is no need to hold additional components for a long time. In addition, in order to facilitate quick and convenient assembly of the electronic control module 3 inside the main body 1, a partition 14 is provided at the end of the electronic control module 3 inside the main body 1 to form a mounting cavity 141, and the electronic control module 3 is disposed inside the mounting cavity 141.

[0028] In this embodiment, the electronic control module 3 typically includes an electronic control board and a battery electrically connected to the electronic control board. The type of battery is selected from existing batteries as needed. In this embodiment, the second end of the spring wire 5 is electrically connected to the electronic control board in the electronic control module 3. While being energized by the power supply circuit on the electronic control board, the switch of the lamp body 4 and the lighting mode can also be controlled based on the control of the electronic control board. In addition, to facilitate the operation of the work light, some on / off switches or function keys electrically connected to the electronic control module 3 are usually provided on the outer surface of the main body 1 for user operation.

[0029] The telescopic tube 2 is designed to accommodate the extension of the lamp body 4 relative to the main body 1, thereby meeting certain special lighting requirements of the work lamp. When the lamp body 4 extends or retracts relative to the main body 1 based on the movement of the telescopic tube 2, the distance between the lamp body 4 and the electrical control module 3 changes. Therefore, a spring wire 5 is used to establish the electrical connection between the lamp body 4 and the electrical control module 3. The spring wire 5 allows for electrical connection of the lamp body 4 at different lengths during the extension and retraction of the telescopic tube 2. However, over time, the spring wire 5 may become fatigued and fail to fully recover, resulting in a total length of the spring wire 5 exceeding its original length when the telescopic tube 2 retracts. This excess portion of the spring wire 5 accumulates inside the main body, potentially affecting the retraction of the telescopic tube 2. In this embodiment, a receiving area 100 is provided inside the main body 1 near the inner end of the telescopic tube 5 to accommodate the excess portion of the spring wire 5. When the telescopic tube 2 retracts, the receiving area 100 collects the deformed excess portion of the spring wire 5, preventing it from interfering with the normal retraction of the telescopic tube 2.

[0030] The location of the receiving area 100 is determined based on the location of the components within the main body 1. For example, the receiving area 100 can be located at the axial end of the inner end of the telescopic tube 5, or at the outer periphery of the inner end of the telescopic tube 5. In this embodiment, the telescopic tube 2 and the electronic control module 3 are arranged axially within the main body 1, with the electronic control module 3 and the telescopic tube 2 spaced apart to form the receiving area 100. This receiving area 100 is used to accommodate the excess portion caused by fatigue of the spring wire 5. In this embodiment, the axial distance of the receiving area 100 is L, where 8mm ≤ L ≤ 15mm.

[0031] The spring wire 5 extends and retracts with the movement of the telescopic tube 2, causing it to be constantly in motion, which can affect the stability of the connection between the spring wire 5 and the electronic control module 3. In this embodiment, to ensure the long-term stability of the connection of the spring wire 5, the end of the spring wire 5 used to connect to the electronic control module 3 needs to be kept essentially stationary. Specifically, a snap-fit ​​part 142 is provided on the partition 14, and a slot 143 is formed on the snap-fit ​​part 142. A fixing member 51 is fitted onto the end of the spring wire 5 used to connect to the electronic control module 3. The fixing member 51 and the spring wire 5 have a large frictional force, ensuring the relative stability of their positions. The fixing member 51 snaps into the slot 143, and its stable position within the slot 143 ensures that the end of the spring wire 5 connected to the electronic control module 3 also remains stable over a long period, thus ensuring the stability of the connection between the spring wire 5 and the electronic control module 3.

[0032] In this embodiment, the lamp body 4 is rotatably connected to the outer end of the telescopic tube 2 via a rotating connector 7. The rotation mode of the rotating connector 7 can be specifically set as needed, such as a connector that can rotate circumferentially and / or axially, to meet the needs of the lamp body 4 for multi-angle lighting and / or small-volume storage.

[0033] In this embodiment, the telescopic tube 2 includes an outer tube 21 fitted inside the main body 1 and at least one inner tube 22 fitted inside the outer tube 21. The number of inner tubes 22 is specifically set according to the required telescopic length of the telescopic tube 2. When two or more inner tubes 22 are provided, they are arranged in a nested manner. The telescopic tube 2 extends out of the main body 1 by stretching and can retract into the main body 1 by compression.

[0034] Typically, the outer tube 21 of the telescopic tube 2 is longer than the inner tube 22. To effectively fix the telescopic tube 2 within the main body 1 without affecting its appearance, limiting protrusions 13 are provided on the inner walls of the first housing 11 and the second housing 12. A limiting hole 211 for the protrusions to be inserted is provided at the end of the outer tube 21 that is longer than the inner tube 22. Simultaneously, to facilitate quick installation of the telescopic tube 2 within the main body 1 and improve assembly efficiency, a limiting rib 15 is provided circumferentially on the inner wall of the main body 1, and the inner end of the telescopic tube 2 rests against the limiting rib 15.

[0035] During assembly, the electronic control module 3 is installed in the mounting cavity 141 corresponding to the first housing 11. The limiting hole 211 on the telescopic tube 2 is aligned with the limiting protrusion 13 of the first housing 11, and the limiting rib 15 is aligned with the limiting rib 15, thus placing it within the space of the first housing 11. The limiting rib 15 and limiting protrusion 13 on the second housing 12 are respectively aligned with the inner end of the telescopic tube 2 and the limiting hole 211. By aligning the first housing 11 and the second housing 12, the electronic control module 3 and the telescopic tube 2 can be installed within the main body 1.

[0036] The retractable spring wire work lamp of this invention features a receiving area 100 between the telescopic tube 2 and the electronic control module 3. This allows the excess portion of the spring wire 5 to be stored within this receiving area 100 when it becomes fatigued and elongated, effectively solving the problem of the spring wire 5 interfering with the telescopic tube 2 and preventing complete retraction. Furthermore, the receiving area 100 eliminates the need to change the elongation ratio or diameter of the spring wire 5, ensuring its wire diameter and maintaining the brightness of the lamp body 4. Moreover, the length of the receiving area 100 is very limited, not significantly increasing the size of the main body 1, thus ensuring a compact overall size for the work lamp.

[0037] Example 2

[0038] like Figure 3As shown, when the excess portion of the spring wire 5 is stored in the receiving area 100, the spring wire 5 tends to accumulate at the protrusion point of the inner tube 22 of the telescopic tube 2, which can lead to the problem that the inner tube 22 cannot quickly retract and reset. The difference between this embodiment and Embodiment 1 is that, in order to better guide the excess spring wire 5 to be evenly distributed within the receiving area 100, a guide member 6 is provided within the receiving area 100 facing the position where the spring wire 5 exits from the telescopic tube 2. The guide surface 61 of the guide member 6 facing the spring wire 5 has an arc-shaped cross-section that guides the spring wire 5 to slide towards the storage position. Thus, when the excess spring wire 5 touches the guide surface 61 of the guide member 6, it slides along the guide surface 61 in its guiding direction under the guidance of the guide surface 61. In this embodiment, the guide surface 61 is radially outwardly inclined, guiding the spring wire 5 in all directions, so that the excess spring wire 5 can be evenly distributed throughout the receiving area 100, reducing the impact on the retraction of the inner tube 22 in the telescopic tube 2 and improving the reset operation speed of the telescopic tube 2.

[0039] Example 3

[0040] like Figure 4 As shown above, the outer tube 21 of the telescopic tube 2 is usually longer than the inner tube 22. To reduce assembly difficulty, the spring wire 5 can be mechanically assembled inside the telescopic tube 2 during production, allowing the spring wire 5 and the telescopic tube 2 to be assembled as a single part within the main body 1, thus increasing assembly speed. Based on this, the difference between this embodiment and Embodiment 1 is that the outer tube 21 can extend axially to the position of the electronic control module 3, so that the portion of the outer tube 21 longer than the inner tube 22 forms the aforementioned receiving area 100. The excess spring wire 5 can be stored in the extra space inside the outer tube 21, eliminating the need for additional spacing areas within the main body 1. This also simplifies the installation limiting structure for the telescopic tube 2 within the main body 1. In other words, in this embodiment, the installation of the telescopic tube 2 can be quickly achieved without setting limiting protrusions 13, limiting ribs 15, or other structures within the main body 1.

[0041] Example 4

[0042] like Figure 5 As shown, the difference between this embodiment and embodiment one is that the electronic control module 3 is located on the outside of the telescopic tube 2. Usually, the main body 1 is equipped with some operation keys such as on / off switches and function keys that are electrically connected to the electronic control module 3. This location of the electronic control module 3 is conducive to arranging the electrical connection lines between the electronic control module 3 and the operation keys inside the main body 1.

[0043] There is a communication space between the electronic control module 3 and the inner end of the telescopic tube 2. In this embodiment, the electronic control module 3 is located in the area at the lower part of the outer side of the telescopic tube 2. The inner end (lower end) of the telescopic tube 2 is slightly higher than the lower end of the electronic control module 3. Thus, a space that can accommodate the excess part of the spring wire 5 will be formed at the position where the telescopic tube 2 turns towards the electronic control module 3 to form the communication space. The communication space accordingly forms the accommodating area 100 to accommodate the excess part of the spring wire 5.

Claims

1. A retractable spring wire work lamp, comprising a main body (1), a lamp body (4), and a telescopic tube (2) and a spring wire (5) disposed within the main body (1), wherein the lamp body (4) is connected to the outer end of the telescopic tube (2), the spring wire (5) is inserted through the telescopic tube (2), a first end of the spring wire (5) is led out from the outer end of the telescopic tube (2) to electrically connect to the lamp body (4), and a second end of the spring wire (5) is led out from the inner end of the telescopic tube (2) to form a power supply connection terminal, characterized in that: The main body (1) has a receiving area (100) at the inner end near the telescopic tube (2) for accommodating the excess portion of the spring wire (5).

2. The work light with retractable spring wire according to claim 1, characterized in that: The main body (1) is equipped with an electronic control module (3) that is electrically connected to the power supply connection terminal of the spring wire (5).

3. The work light with retractable spring wire according to claim 2, characterized in that: The telescopic tube (2) and the electrical control module (3) are arranged axially within the main body (1), and the telescopic tube (2) and the electrical control module (3) are spaced apart to form the receiving area (100).

4. The work light with retractable spring wire according to claim 3, characterized in that: The axial distance of the receiving area (100) is L, where 8mm ≤ L ≤ 15mm.

5. The work light with retractable spring wire according to claim 2, characterized in that: The telescopic tube (2) and the electronic control module (3) are arranged axially inside the main body (1). The telescopic tube (2) includes an outer tube (21) fitted inside the main body (1) and at least one inner tube (22) fitted inside the outer tube (21). The inner end of the outer tube (21) extends axially to the end of the electronic control module (3) such that the portion of the outer tube (21) longer than the inner tube (22) forms the receiving area (100).

6. The work light with retractable spring wire according to claim 2, characterized in that: The electronic control module (3) is located on the outside of the telescopic tube (2), and there is a communication space between the electronic control module (3) and the inner end of the telescopic tube (2), which constitutes the receiving area (100).

7. The retractable spring wire work lamp according to any one of claims 1 to 6, characterized in that: The main body (1) includes a first shell (11) and a second shell (12) that are opposite to each other.

8. The work light with retractable spring wire according to claim 7, characterized in that: The inner walls of the first housing (11) and the second housing (12) are provided with limiting protrusions (13), and the outer peripheral wall of the telescopic tube (2) is provided with limiting holes (211) for the protrusions to be inserted.

9. The retractable spring wire work lamp according to any one of claims 1 to 6, characterized in that: A guide (6) is provided in the receiving area (100) facing the position where the second end of the spring wire (5) passes through the telescopic tube (2). The guide surface (61) of the guide (6) facing the spring wire (5) has an arc-shaped cross section that guides the spring wire (5) to slide towards the receiving position.

10. The retractable spring wire work lamp according to any one of claims 1 to 6, characterized in that: The lamp body (4) is rotatably connected to the outer end of the telescopic tube (2) via a rotating connector (7).

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