Heat insulation flashlight

Abstract

The utility model provides a heat insulation flashlight which comprises a flashlight body and a flashlight head, a battery is installed in the flashlight body, one end of the flashlight body is in threaded connection with the flashlight head, a step face is arranged on the flashlight body, a heat insulation structure is arranged between the step face and the flashlight head, and a cavity is formed between the heat insulation structure and the outer wall of the flashlight body. By rotating the lamp holder, the lamp holder moves from one end of the barrel to the other end of the barrel to abut against one side of the heat insulation structure, the other side of the heat insulation structure is driven to abut against the step face, the heat insulation structure is additionally arranged on the flashlight, and a cavity is formed between the heat insulation structure and the barrel, so that the heat conduction area is reduced; heat released by a battery is effectively prevented from being conducted to a handheld position, so that the problem of heating of the handheld position is solved, meanwhile, compared with a silica gel sleeve, assembling is more convenient, the lamp holder is rotated to move from one end of the barrel to the other end of the barrel to abut against one side of the heat insulation structure, and the heat insulation effect is improved. And the other side of the heat insulation structure is driven to abut against the step surface to finish assembly.

Description

Technical Field

[0001] The utility model relates to the field of lighting, in particular to a heat-insulating flashlight. Background Art

[0002] A flashlight is a portable lighting device, and its structure mainly consists of a shell, a power source, a switch, a bulb or LED, a reflector or lens, and a circuit board. The shell is usually made of plastic or metal materials to protect the internal circuit and battery. The power source is usually a dry cell battery, which is used to supply power to the light-emitting part of the flashlight. The switch controls the on or off state of the flashlight. The light-emitting part can be a traditional bulb or a modern LED, which has higher efficiency and longer life. The reflector or lens is used to adjust the focus or scattering of light to improve the lighting effect. The circuit board controls the flow of current, which may include dimming functions, etc. The flashlight uses the power provided by the battery to make the current flow through the circuit board to the light-emitting part, stimulating it to emit light, thereby realizing the lighting function.

[0003] Currently, the barrel of most flashlights is where the battery is placed, and the hand-held position is also in this position. The chemical reaction inside the flashlight's battery releases energy, especially under high load conditions, such as high-brightness lighting or when using high-power equipment. The hand-held position will be relatively hot, so a heat-insulating cover such as silicone is put here. However, silicone is not conducive to heat dissipation, resulting in a higher temperature at the barrel position, and the silicone cover is more cumbersome to install. Summary of the invention

[0004] The problem to be solved by the utility model is to provide a heat-insulating flashlight, which solves the problem of heating of the hand-held position due to energy released by the battery without affecting the heat dissipation by adding a heat-insulating structure.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: an insulated flashlight, comprising a barrel and a lamp holder, a battery is installed in the barrel, a lamp holder is provided at one end of the barrel, a step surface is provided on the barrel, a heat insulation structure is provided between the step surface and the lamp holder, the heat insulation structure comprises a first abutment block and a second abutment block which are sleeved on the outer wall of the barrel, and a heat insulation plate located between the first abutment block and the second abutment block, the heat insulation plate, the first abutment block, the second abutment block and the outer wall of the barrel form a cavity.

[0006] Compared with the prior art, the utility model adds a heat insulation structure to the flashlight. Since a cavity is formed between the heat insulation structure and the barrel, the heat conduction area is reduced, which effectively prevents the heat released by the battery from being conducted to the hand-held position, thereby reducing the problem of heating at the hand-held position. In addition, the cavity is conducive to heat dissipation, further reducing the temperature of the hand-held part.

[0007] Preferably, one end of the cylinder is threadedly connected to the lamp holder, and the lamp holder is moved from one end of the cylinder toward the step surface by rotating the lamp holder, while the second abutment block, the heat insulation plate, and the first abutment block are pushed in sequence so that the first abutment block abuts against one side of the step surface.

[0008] Preferably, the first abutment block extends axially toward the other end of the cylinder to form a first annular flange, and the second abutment block extends axially toward one end of the cylinder to form a second annular flange, and the two ends of the insulation board are respectively sleeved on the outer walls of the first annular flange and the second annular flange.

[0009] Preferably, the second abutment block has an abutment conical surface, and the lamp head has a lamp head conical surface. The lamp head is rotated to make the lamp head conical surface abut against the abutment conical surface, and the second abutment block, the heat insulation plate, and the first abutment block are driven in turn to move from one end of the cylinder to the other end until the first abutment block abuts against the step surface. The abutment of the conical surfaces can prevent the second abutment block from moving up and down after installation due to processing errors, causing wear and causing abnormal noise in the structure.

[0010] Preferably, the outer wall of the heat insulation plate is provided with a plurality of first grooves with radially concave cross-sections having a V-shaped shape at axial intervals, and second grooves with radially concave cross-sections having a V-shaped shape at circumferentially equidistant intervals. The first grooves and the second grooves can increase the friction of the hand-held part, and the grooves increase the heat dissipation area, thereby achieving a better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0012] Figure 2 It is a half-section view at the center of the utility model;

[0013] Figure 3 for Figure 2 Enlarged view of the box location;

[0014] Figure 4 It is a partial enlarged view of the position of the heat insulation board of the utility model;

[0015] Illustration: 1. Cylinder; 1.1. Step surface; 2. Lamp holder; 2.1. Conical surface of lamp holder; 3. Heat insulation structure; 3.1. First abutment block; 3.1.1. First annular flange; 3.2. Second abutment block; 3.2.1. Second annular flange; 3.2.2. Abutment conical surface; 3.3. Heat insulation board; 3.3.1. First groove; 3.3.2. Second groove. DETAILED DESCRIPTION

[0016] Before describing in detail any embodiment of the utility model, it should be understood that the utility model is not limited in its application to the construction and arrangement details of the components described below or illustrated in the following figures. The utility model can have other embodiments and can be practiced or carried out in various ways. In addition, it should be understood that the words and terms used here are for descriptive purposes and should not be considered restrictive. The use of "including" or "having" and its variations herein is intended to cover the items and their equivalents and additional items displayed below. Unless otherwise specified or limited, the terms "install", "connect", "support" and "couple" and their variations are widely used and cover direct installation and indirect installation, connection, support and connection. In addition, "connect" and "couple" are not limited to physical or mechanical connections or connections.

[0017] Furthermore, on the first aspect, in the disclosure of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore the above terms cannot be understood as limitations on the present invention; on the second aspect, the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" cannot be understood as a limitation on the quantity.

[0018] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

[0019] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0020] Please refer to Figure 1 , a heat-insulating flashlight, comprising a barrel 1 and a lamp holder 2, wherein a battery is installed in the barrel 1;

[0021] Please refer to Figure 2 One end of the cylinder 1 is threadedly connected to the lamp holder 2, a step surface 1.1 is provided on the cylinder 1, and a heat insulation structure 3 is provided between the step surface 1.1 and the lamp holder 2;

[0022] Please refer to Figure 3The heat insulation structure 3 includes a first abutment block 3.1 and a second abutment block 3.2 which are sleeved on the outer wall of the cylinder 1, and a heat insulation plate 3.3 located between the first abutment block 3.1 and the second abutment blocks. The heat insulation plate 3.3, the first abutment block 3.1, the second abutment block 3.2 and the outer wall of the cylinder 1 form a cavity. The lower part of the handheld part is a cavity. Heat conduction is completed by the abutment blocks at both ends, reducing the area of ​​heat conduction.

[0023] The first abutment block 3.1 extends axially toward the other end of the cylinder 1 to form a first annular flange 3.1.1, and the second abutment block 3.2 extends axially toward one end of the cylinder 1 to form a second annular flange 3.2.1. Both ends of the heat insulation board 3.3 are respectively sleeved on the outer walls of the first annular flange 3.1.1 and the second annular flange 3.2.1.

[0024] Please refer to Figure 4 The outer wall of the heat insulation plate 3.3 is provided with a plurality of radially concave first grooves 3.3.1 with V-shaped cross sections at intervals in the axial direction, and a plurality of radially concave second grooves 3.3.2 with V-shaped cross sections at equal intervals in the circumferential direction.

[0025] Please refer to Figure 3 The second abutment block 3.2 has an abutment cone surface 3.2.2, and the lamp holder 2 has a lamp holder cone surface 2.1. The lamp holder 2 is rotated to make the lamp holder cone surface 2.1 abut against the abutment cone surface 3.2.2, and in turn drive the second abutment block 3.2, the heat insulation plate 3.3, and the first abutment block 3.1 to move from one end of the cylinder 1 to the other end until the first abutment block 3.1 abuts against the step surface 1.1.

[0026] The specific installation process is as follows

[0027] The first abutment block 3.1 is sleeved on one side of the step surface 1.1 on the outer wall of the cylinder 1, and one end of the heat insulation board 3.3 is sleeved on the outer wall of the first annular flange 3.1.1, and the second abutment block 3.2 is sleeved on the outer wall of the cylinder 1, and the other end of the heat insulation board 3.3 is sleeved on the outer wall of the second annular flange 3.2.1, ensuring that both ends of the heat insulation board 3.3 are in close contact with the outer walls of the first annular flange 3.1.1 and the second annular flange 3.2.1.

[0028] The lamp holder 2 is threadedly connected to one end of the cylinder 1, and the lamp holder 2 is rotated so that the lamp holder cone surface 2.1 abuts against the abutting cone surface 3.2.2 on the abutting block, and the second abutting block 3.2, the heat insulation plate 3.3, and the first abutting block 3.1 are driven in sequence to move from one end of the cylinder 1 to the other end until the first abutting block 3.1 abuts against the step surface 1.1, and the entire complete insulation structure is assembled. This structure is easy to install and is conducive to production and maintenance.

[0029] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. A heat-insulating flashlight, comprising a barrel (1) and a lamp holder (2), wherein a battery is installed in the barrel (1), characterized in that: A lamp holder (2) is provided at one end of the cylinder (1); a step surface (1.1) is provided on the cylinder (1); a heat insulation structure (3) is provided between the step surface (1.1) and the lamp holder (2); the heat insulation structure (3) comprises a first abutment block (3.1) and a second abutment block (3.2) sleeved on the outer wall of the cylinder (1); and a heat insulation plate (3.3) located between the first abutment block (3.1) and the second abutment block (3.2); the heat insulation plate (3.3), the first abutment block (3.1), the second abutment block (3.2) and the outer wall of the cylinder (1) enclose a cavity.

2. A heat-insulating flashlight according to claim 1, characterized in that: One end of the barrel (1) is threadedly connected to the lamp holder (2), and the lamp holder (2) is moved from one end of the barrel (1) toward the step surface (1.1) by rotating the lamp holder (2), while the second abutment block (3.2), the heat insulation board (3.3), and the first abutment block (3.1) are pushed in sequence, so that the first abutment block (3.1) abuts against one side of the step surface (1.1).

3. A heat-insulating flashlight according to claim 2, characterized in that: The first abutment block (3.1) extends axially toward the other end of the cylinder (1) to form a first annular flange (3.1.1), the second abutment block (3.2) extends axially toward one end of the cylinder (1) to form a second annular flange (3.2.1), and the two ends of the heat insulation plate (3.3) are respectively sleeved on the outer walls of the first annular flange (3.1.1) and the second annular flange (3.2.1).

4. A heat-insulating flashlight according to claim 2 or 3, characterized in that: The second abutment block (3.2) has an abutment conical surface (3.2.2), and the lamp holder (2) has a lamp holder conical surface (2.1). The lamp holder (2) is rotated to make the lamp holder conical surface (2.1) abut against the abutment conical surface (3.2.2), and the second abutment block (3.2), the heat insulation plate (3.3), and the first abutment block (3.1) are sequentially driven to move from one end of the cylinder (1) to the other end until the first abutment block (3.1) abuts against the step surface (1.1).

5. A heat-insulating flashlight according to claim 4, characterized in that: The outer wall of the heat insulation plate (3.3) is provided with a plurality of radially concave first grooves (3.3.1) with V-shaped cross sections at intervals in the axial direction, and radially concave second grooves (3.3.2) with V-shaped cross sections are provided at equal intervals in the circumferential direction.

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