Portable liftable working lamp with high stability

Abstract

The invention provides a portable lifting working lamp with high stability. The portable lifting working lamp comprises a lamp body and a supporting frame. The lamp body comprises a lamp holder, a telescopic rod, a power source and a balance weight part, the lamp holder and the power source are located at the two ends of the telescopic rod respectively, and the balance weight part is arranged on the power source. The supporting frame comprises a movable ring and a plurality of outer supporting feet, the movable ring is arranged on the telescopic rod, one end of each outer supporting foot is rotationally connected with the movable ring, and the outer supporting feet are distributed in a circumferential array mode with the telescopic rod as the center. The outer supporting feet are attached to the outer wall of the telescopic rod after being contracted, and the outer supporting feet are used for abutting against the ground when being unfolded. The counter weight is additionally arranged at the power supply position, so that the gravity center of the lamp body moves downwards to improve the anti-toppling capacity, the working lamp can provide stable illumination in the outdoor environment, direct contact between the power supply and the ground is avoided, and the service life of the power supply is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lighting lamps, in particular to a portable and liftable work lamp with high stability. BACKGROUND

[0002] In the process of performing outdoor emergency rescue work, temporary lighting is needed, and since the task execution place is outdoors, the work lamp needs to be convenient to carry. For example, the invention patent with application number 2024108324568 discloses a high-power, portable, liftable work lamp, which comprises a lifting assembly, a power supply assembly, a lamp head assembly, a handle assembly, and a support assembly. The components in the lifting assembly form a telescopic structure with a hollow cavity. When the telescopic structure is retracted, the volume of the work lamp is reduced, making it easy to carry. Meanwhile, the support assembly provides multiple external support legs, which provide support by unfolding to prevent the work lamp from toppling over.

[0003] The work lamp disclosed by the scheme has the following disadvantages: 1. When the telescopic rod is extended, the center of gravity of the work lamp moves upward, increasing the risk of toppling over. At this time, the mass of the work lamp itself does not change, and the anti-toppling ability provided by the movable support assembly is limited, which makes the work lamp prone to toppling over when used in a slope or windy environment. 2. During work, the power supply assembly is in contact with the ground, which can easily cause damage to the power supply in a high-vibration environment. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a portable and liftable work lamp with high stability, which improves the anti-toppling ability to provide stable lighting in outdoor environments.

[0005] The present application is achieved by the following technical solutions: A portable and liftable work lamp with high stability, characterized in that it comprises a lamp body and a support frame. The lamp body comprises a lamp head, a telescopic rod, a power supply, and a counterweight. The lamp head and the power supply are located at the two ends of the telescopic rod, and the counterweight is arranged on the power supply. The support frame comprises a movable ring and multiple external support legs. The movable ring is arranged on the telescopic rod, and one end of the external support leg is rotatably connected to the movable ring. The multiple external support legs are arranged in a circular array around the telescopic rod. When the external support leg is retracted, it is attached to the outer wall of the telescopic rod. When the external support leg is unfolded, it is used to resist the ground.

[0006] In one of the embodiments, the counterweight comprises a plurality of load boxes, the load boxes are single-sided open, the outer wall of the load boxes is provided with buckles, and the side of the power supply is provided with a plurality of interfaces matched with the buckles; the plurality of load boxes are stacked together and sleeved on the shell of the power supply, and the load boxes and the shell of the power supply are detachably connected; or the buckles are docked with the interfaces to make the load boxes hung on the side of the power supply, and the load boxes are used to contain heavy objects to increase the weight of the lamp body.

[0007] In one of the embodiments, the support frame further comprises an elastic connecting rod, a limiting sleeve and a plurality of hinged seats, the limiting sleeve is arranged at the connecting position of the telescopic rod and the power supply, one end of the elastic connecting rod is connected with the limiting sleeve, the hinged seats are arranged on the outer support legs, and the other end of the elastic connecting rod is connected with the hinged seats. When the outer support legs are unfolded, the elastic connecting rod provides a pulling force to suspend the power supply between the plurality of outer support legs; and the elastic connecting rod transmits the gravity of the lamp body to the outer support legs to maintain the unfolded state of the plurality of outer support legs.

[0008] In one of the embodiments, the hinged seats are located at the central positions of the outer support legs.

[0009] In one of the embodiments, the plurality of interfaces are distributed in a circumferential array on the shell of the power supply.

[0010] In one of the embodiments, the buckles are located at the edges of the openings of the load boxes.

[0011] In one of the embodiments, the lamp body further comprises a handle, both ends of the handle are provided with fastening rings, and the fastening rings are connected with the telescopic rod.

[0012] In one of the embodiments, the movable ring is located between the two fastening rings.

[0013] In one of the embodiments, the side of the telescopic rod in contact with the movable ring is provided with a track, and the movable ring is provided with a groove matched with the track, and the track and the groove are matched to prevent the movable ring from rotating.

[0014] In one of the embodiments, the end of the outer support leg away from the movable ring is provided with a non-slip pad.

[0015] In summary, the portable and liftable work lamp with high stability increases the counterweight at the position of the power supply, moves the center of gravity of the lamp body downward to improve the anti-toppling capability, enables the work lamp to provide stable lighting in an outdoor environment, and avoids the direct contact of the power supply with the ground to improve the service life of the power supply. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 A schematic view of the stable portable foldable work light in a storage state; Figure 2 A split schematic view of the counterweight; Figure 3 A split schematic view of the counterweight; Figure 1 A schematic view of the stable portable foldable work light in an unfolded state; Figure 4 A split schematic view of the lamp body and the support frame; Figure 5 A split schematic view of the lamp body and the support frame; Figure 6 A schematic view of the stable portable foldable work light in an unfolded state;

[0018] Reference signs: 10, stable portable foldable work light; 11, lamp body; 12, support frame; 100, lamp head; 200, telescopic rod; 210, track; 300, power supply; 310, interface; 400, counterweight; 410, load box; 411, buckle; 500, movable ring; 510, groove; 600, outer support leg; 610, non-slip pad; 700, handle; 710, fastening ring; 810, elastic connecting rod; 820, limiting sleeve; 830, hinged seat. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] See also Figure 1 and Figure 4 The present invention provides a portable liftable work lamp 10 with high stability, which includes: a lamp body 11 and a support frame 12.

[0023] See also Figure 1 and Figure 3 The lamp body 11 includes: a lamp head 100, a telescopic rod 200, a power supply 300 and a counterweight 400. The lamp head 100 and the power supply 300 are respectively located at both ends of the telescopic rod 200, and the counterweight 400 is provided on the power supply 300; the telescopic rod 200 is composed of a plurality of hollow tubes, so that the telescopic rod 200 can be extended and retracted. In this way, when carrying the work lamp, the telescopic rod 200 is retracted to reduce the volume for the user to carry conveniently; when lighting is needed, the telescopic rod 200 is switched to the extended state, and the height of the lamp head 100 is raised to obtain a wider lighting range.

[0024] Since the telescopic rod 200 is in an extended state after the work lamp is erected, the overall height of the work lamp increases. In order to prevent the work lamp from becoming easily tipped over due to the center of gravity being too high, a counterweight 400 is added to the power supply 300 in this application to increase the weight at the end where the power supply 300 is located, so that the center of gravity of the work lamp moves downward, thereby improving the stability of the work lamp.

[0025] See also Figure 1 and Figure 3 The support frame 12 includes: a movable ring 500 and a plurality of outer supporting legs 600. The movable ring 500 is provided on the telescopic rod 200. One end of the outer supporting leg 600 is rotatably connected to the movable ring 500. The plurality of outer supporting legs 600 are distributed in a circular array with the telescopic rod 200 as the center. After the support frame 12 is retracted, it fits into the outer wall of the telescopic rod 200, reducing the volume of the work lamp in the stored state to improve the portability of the work lamp. When the support frame 12 is unfolded, the plurality of outer supporting legs 600 are in contact with the ground at a position away from the power source 300 to improve the anti-tilting ability of the work lamp.

[0026] It should be noted that the above working lamp is provided with the telescopic rod 200, so that the lamp body 11 has the ability to contract and stretch. On the one hand, the volume of the working lamp is reduced by contraction, so that it is convenient to carry. On the other hand, the height of the lamp head 100 is increased by stretching the lamp body 11, so that a larger illumination range is obtained. The weight of the lamp body 11 is mainly distributed on the lamp head 100, and the lamp head 100 and the power supply 300 are distributed on the two ends of the telescopic rod 200. After the telescopic rod 200 is stretched, the distance between the lamp head 100 and the power supply 300 is increased, so that the center of gravity of the working lamp is moved upward. Although the counterweight 400 is added at the power supply 300, so that the working lamp does not become top-heavy after being unfolded, the weight of the counterweight 400 itself cannot be too large, otherwise the physical strength of the carrier will be excessively consumed when the working lamp is carried to the target erection site. Therefore, when the working lamp is erected on a slope, in a windy environment or in a scene with strong vibration, there is still a probability of falling, and the main weight of the working lamp is distributed at the lamp head 100, so that the lamp head 100 is easily damaged when falling occurs.

[0027] To solve the above problems, the working lamp is improved as follows: Please refer to Figure 2 and Figure 5 The counterweight 400 includes a plurality of load boxes 410, the plurality of load boxes 410 are stacked together and are sleeved on the outer shell of the power supply 300. The load box 410 is open on one side, and the outer wall of the load box 410 is provided with a buckle 411. The side surface of the power supply 300 is provided with a plurality of interfaces 310. Preferably, the plurality of interfaces 310 are distributed in a circumferential array on the outer shell of the power supply 300.

[0028] The load box 410 and the outer shell of the power supply 300 are detachably connected, and the buckle 411 and the interface 310 are connected to hang the load box 410 on the side surface of the power supply 300, as shown in Figure 3 The load box 410 is used to contain heavy objects to increase the weight of the lamp body 11. For example, the load box 410 is filled with sand, water or other heavy objects that can be obtained on site, so as to increase the weight of the position where the power supply 300 is located, so that the center of gravity of the lamp body 11 is offset to the position where the power supply 300 is located, thereby avoiding the problem of falling caused by the high center of gravity.

[0029] It should be noted that the reason why the original working lamp is prone to falling is that the telescopic structure is adopted to meet the demand for outdoor use, and the lightweight design is also adopted. The lightweight design of the lamp body 11 causes the weight of the working lamp to be concentrated on the power supply 300 and the lamp head 100. When the working lamp is erected, the telescopic rod 200 is stretched to lift the lamp head 100, which further increases the center of gravity of the working lamp, so that the working lamp is in a state prone to falling. When the working lamp is erected in a windy environment, the working lamp is prone to falling due to the high center of gravity. In the present application, the load boxes 410 are stacked together and sleeved on the outer wall of the power supply 300 in a normal state, as shown inFigure 1 The portable liftable work lamp 10 shown has high stability, compact structure of each component, small volume, and is convenient to carry; when needed, each load box 410 can be detached and hung on the outer wall of the power supply 300 through the buckle 411 and the interface 310, as shown Figure 3 The work lamp is erected at the location, and the weight of the load box 410 is increased, so that the weight of the power supply 300 side of the lamp body 11 is increased, the center of gravity of the work lamp is lowered, and the stability of the work lamp is improved. The weight can be temporarily obtained at the work lamp erection site, and the user does not need to carry it by himself, which can reduce the weight of the backpack, avoid consuming too much physical strength in the process of moving the work lamp, ensure the portability, and improve the stability of the work lamp after being unfolded.

[0030] Please refer to Figure 4 and Figure 6 To improve the stability of the work lamp, the support frame 12 further comprises an elastic connecting rod 810, a limiting sleeve 820, and a plurality of hinge seats 830. The limiting sleeve 820 is arranged at the connection position of the telescopic rod 200 and the power supply 300. One end of the elastic connecting rod 810 is connected with the limiting sleeve 820. The hinge seat 830 is arranged on the outer support leg 600, and preferably, the hinge seat 830 is located at the central position of the outer support leg 600. The other end of the elastic connecting rod 810 is connected with the hinge seat 830, that is, the two ends of the elastic connecting rod 810 are fixed on the power supply 300 and the outer support leg 600 respectively, and the elastic connecting rod 810 is rotationally connected between the limiting sleeve 820 and the hinge seat 830.

[0031] The function of the elastic connecting rod 810 in the support frame 12 is as follows: When the movable ring 500 moves away from the position of the power supply 300, the end of the outer support leg 600 connected with the movable ring 500 moves away from the power supply 300. At this time, the elastic connecting rod 810 provides a pulling force to the hinge seat 830 on the outer support leg 600, so that the end of the outer support leg 600 away from the movable ring 500 starts to flip towards the telescopic rod 200, until the outer support leg 600 is attached to the outer wall of the telescopic rod 200, so that the support frame 12 is switched from the unfolded state to the contracted state. When the movable ring 500 moves towards the position of the power supply 300, the end of the outer support leg 600 connected with the movable ring 500 moves close to the power supply 300. At this time, the elastic connecting rod 810 provides a pushing force to the hinge seat 830 on the outer support leg 600, so that the end of the outer support leg 600 away from the movable ring 500 flips in the direction away from the telescopic rod 200, thereby switching the support frame 12 from the contracted state to the unfolded state. When the movable ring 500 drives the outer support leg 600 to move in the above process, the elastic connecting rod 810 flips the end of the outer support leg 600 away from the movable ring 500 by providing resistance, so as to switch the unfolded and contracted states of the support frame 12. Therefore, it is not necessary to turn the outer support leg 600 one by one when erecting the work lamp, which simplifies the process of erecting the work lamp.

[0032] It should be noted that the weight of the working lamp unfolded lamp body 11 will be transmitted to the outer support leg 600 through the elastic connecting rod 810, at this time one end of the outer support leg 600 is in abutment with the ground, and the other end is connected with the movable ring 500, the tension from the elastic connecting rod 810 generates a component force towards the telescopic rod 200 and a component force towards the ground, that is, the outer support leg 600 is pulled by the weight of the lamp body 11 itself, and the support frame 12 is kept taut.

[0033] At the same time, the reaction force provided by the outer support leg 600 supports the lamp body 11, so that the power supply 300 is suspended between the plurality of outer support legs 600, avoiding direct contact of the power supply 300 with the ground, which can provide protection for the power supply 300 and avoid the power supply 300 from being bumped.

[0034] Further, when the working lamp is erected near the seismic source, the above-mentioned support frame 12 can provide cushioning for the lamp body 11 to avoid damage to the power supply 300 caused by high-frequency vibration. As shown in Figure 6 After the working lamp is erected, the elastic connecting rod 810 provides tension to suspend the power supply 300 between the outer support legs 600, and the lamp body 11 as a whole does not contact the ground, and the vibration mainly acts on the outer support legs 600; wherein the components of the support frame 12 in contact with the lamp body 11 are the movable ring 500 and the elastic connecting rod 810, the movable ring 500 is slidably arranged on the telescopic rod 200, and when the outer support leg 600 shakes, the movable ring 500 jumps without causing displacement of the telescopic rod 200; on the other hand, the elastic connecting rod 810 is rotatably connected between the outer support leg 600 and the lamp body 11, and the elastic connecting rod 810 is an elongated member, so that when the outer support leg 600 shakes, the elastic connecting rod 810 can act as a buffer to prevent the vibration in the environment from being directly transmitted to the lamp body 11, thereby protecting the power supply 300 and preventing the lamp head 100 from shaking significantly, which can provide stable lighting.

[0035] Please refer to Figure 6 In an embodiment, the lamp body 11 further comprises a handle 700, both ends of the handle 700 are provided with a fastening ring 710, the fastening ring 710 is connected with the telescopic rod 200, and the movable ring 500 is located between the two fastening rings 710. The handle provides a holding support point to facilitate the user to carry and transport the working lamp, and at the same time, the two fastening rings 710 provide a limit for the movable ring 500, so that the movable ring 500 can only slide between the two fastening rings 710 to limit the unfolding range of the outer support leg 600. As shown in Figure 6 After the support frame 12 is unfolded, the movable ring 500 is in abutment with the fastening ring 710 close to the power supply 300, which prevents the movable ring 500 from continuing to approach the power supply 300, so that the outer support leg 600 cannot continue to turn over, that is, the outer support leg 600 reaches the limit of the outer turning state.

[0036] In an embodiment, the buckles 411 are located at the edges of the openings of the material loading boxes 410. The buckles 411 provide a limit when the material loading boxes 410 are stacked together, and serve as a fulcrum to facilitate the user to separate the stacked material loading boxes 410.

[0037] Referring to Figure 5 In an embodiment, a track 210 is provided on the side of the telescopic rod 200 that is in contact with the movable ring 500, and a groove 510 matching the track 210 is provided on the movable ring 500. The track 210 and the groove 510 cooperate to prevent the movable ring 500 from rotating.

[0038] Referring to Figure 3 In an embodiment, a non-slip pad 610 is provided on the end of the outer support leg 600 that is away from the movable ring 500. The non-slip pad 610 increases the friction between the outer support leg 600 and the ground, thereby preventing the work light from sliding.

[0039] The above-described embodiments only express several embodiments of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A portable liftable work light with high stability, characterized in that: include: Lamp body and support frame; The lamp body includes: a lamp head, a telescopic rod, a power supply and a counterweight, wherein the lamp head and the power supply are respectively located at two ends of the telescopic rod, and the counterweight is arranged on the power supply; The support frame includes: a movable ring and a plurality of external support legs, the movable ring is arranged on the telescopic rod, one end of the external support leg is rotatably connected to the movable ring, and the plurality of external support legs are distributed in a circular array with the telescopic rod as the center; The outer support legs are fitted with the outer wall of the telescopic rod after being retracted, and are used to abut against the ground when being unfolded.

2. The portable liftable work light with high stability according to claim 1, characterized in that: The counterweight comprises a plurality of material loading boxes, each of which is open on one side, a buckle is provided on the outer wall of the material loading box, and a plurality of interfaces that cooperate with the buckle are provided on the side of the power supply; A plurality of the material carrying boxes are stacked together and put on the outer shell of the power supply, and the material carrying boxes and the outer shell of the power supply are detachably connected; or the buckle is docked with the interface so that the material carrying box is hung on the side of the power supply, and the material carrying box is used to hold heavy objects to increase the weight of the lamp body.

3. The portable liftable work lamp with high stability according to claim 2, characterized in that: The support frame further includes an elastic connecting rod, a limiting sleeve and a plurality of hinged seats, wherein the limiting sleeve is provided at the connection position between the telescopic rod and the power supply, one end of the elastic connecting rod is connected to the limiting sleeve, the hinged seat is provided on the outer support leg, and the other end of the elastic connecting rod is connected to the hinged seat; When the outer legs are unfolded, the elastic connecting rod provides a pulling force to suspend the power supply between the plurality of outer legs; and the elastic connecting rod transfers the gravity of the lamp body to the outer legs, so that the plurality of outer legs maintain an unfolded state.

4. The portable liftable work light with high stability according to claim 3, characterized in that: The hinge seat is located at the center of the outer support leg.

5. The portable liftable work lamp with high stability according to claim 2, characterized in that: The plurality of interfaces are distributed on the housing of the power supply in a circular array.

6. The portable liftable work lamp with high stability according to claim 2, characterized in that: The buckle is located at the edge of the opening of the material loading box.

7. The portable liftable work light with high stability according to claim 1, characterized in that: The lamp body further comprises a handle, both ends of the handle are provided with a fastening ring, and the fastening ring is connected to the telescopic rod.

8. The portable liftable work lamp with high stability according to claim 6, characterized in that: The movable ring is located between the two fastening rings.

9. The portable liftable work lamp with high stability according to claim 1, characterized in that: A track is provided on the side of the telescopic rod that contacts the movable ring, and a groove matching the track is provided on the movable ring. The track cooperates with the groove to prevent the movable ring from rotating.

10. The portable liftable work lamp with high stability according to claim 1, characterized in that: An anti-slip pad is provided on one end of the outer support leg away from the movable ring.

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