A new zoom flashlight

Abstract

The utility model discloses a novel zoomable flashlight, including casing, the lamp holder for placing luminous body and the lens seat for placing lens and converging luminous body emission light, the lens seat installs at the one end end portion of casing, the lamp holder moves in a way with being able to go up and down and is installed on the casing, the lamp holder is in the casing, the lamp holder has the mounting seat and the moving seat for luminous body installation, the moving seat has the first half body and the second half body that the lateral opposite buckle is disassembled together, and the one end end portion with the naked window to moving seat has, and the moving seat has the accommodation space that communicates with naked window in, and the mounting seat is embedded in the accommodation space, and moving seat is installed in the casing with can go up and down, and the casing is equipped with the movable block that can go up and down and can drive moving seat to go up and down, compared with prior art, only need to manually push movable block to go up and down and can realize zooming.

Description

Technical Field

[0001] This utility model relates to the field of lighting tools technology, and in particular to a novel zoom flashlight. Background Technology

[0002] The zoom principle of a zoom flashlight is to adjust the distance between the lens and the LED to achieve zoom. Existing zoom flashlights, such as the utility model patent with application number 2018207565919, include a lamp holder for holding the LED; a lens located above the LED to focus the light emitted by the LED; a lamp head connector located below the lamp holder, connecting to the lamp tube and limiting the vertical movement of the lamp holder; and a zoom assembly wrapped around the lamp head connector and connected to the lamp holder. Rotating the zoom assembly infinitely in one direction around the lamp head connector causes the lamp holder to move vertically, changing the distance between the LED and the lens. In application, the infinite rotation of the zoom assembly in one direction causes the LED on the lamp holder to move vertically, thus changing the distance between the LED and the lens and achieving infinite continuous zoom.

[0003] However, with the aforementioned zoom flashlight, the user must use both hands to rotate the two parts relative to each other to complete the zooming action. When the user can only use one hand to focus, it is not possible to complete the focusing action smoothly, making the operation inconvenient.

[0004] In view of this, the inventors of this case conducted in-depth research on the problem, which led to the creation of this case. Summary of the Invention

[0005] The purpose of this utility model is to provide a new type of zoom flashlight to solve the problem that existing zoom flashlights can only be operated with both hands for zooming and cannot be adjusted with one hand, making operation inconvenient.

[0006] To achieve its purpose, this utility model adopts the following technical solution: A novel zoom flashlight includes a housing, a lamp holder for placing a light-emitting element, and a lens holder for placing a lens and focusing the light emitted by the light-emitting element. The lens holder is installed at one end of the housing, and the lamp holder is installed on the housing in a way that allows it to move up and down. The lamp holder is located inside the housing and has a mounting base and a movable base for mounting the light-emitting element. The movable base has a first half and a second half that are laterally interlocked and disassembled together. The end of the movable base facing the lens holder has an exposed window, and the movable base has an accommodating space communicating with the exposed window. The mounting base is embedded in the accommodating space, and the movable base is fitted into the housing in a way that allows it to move up and down. A movable block is provided outside the housing that can move up and down and drive the movable base to move up and down.

[0007] Taking the position of the lens mount as the top, both the first half and the second half are semi-shells with a semi-cylindrical structure. The semi-shell has a side wall and a bottom plate. The side wall is a vertically set semi-circular arc plate with a concave arc cavity. The concave arc cavity of the semi-circular arc plate is a hollow semi-cylindrical structure that is open on one side and runs through the top and bottom. The bottom plate is a semi-circular plate that blocks the bottom opening of the semi-circular arc plate. The two semi-circular arc plates are fastened together and form an installation chamber with an open top surface and a hollow cylindrical structure. The top opening of the installation chamber is the aforementioned exposed window. The accommodating space is located in the upper part of the installation chamber. The moving block is located on the semi-circular arc plate of the first half.

[0008] In the two half-shells, the upper inner sidewall of one half-shell is provided with a placement seat for placing the mounting seat, and the upper ends of the two half-shells are provided with a limiting structure to prevent the mounting seat from being removed from the mounting cavity. The space between the placement seat and the limiting structure constitutes the aforementioned accommodating space.

[0009] The mounting base has a block structure. The top surface of the mounting base is recessed with a mounting groove for mounting the light source. The upper outer side wall of the mounting base has a protruding ring with a closed-loop structure. The bottom surface of the mounting base is superimposed on the top surface of the placement base. The upper inner side walls of both half shells have a semi-circular structure for embedding the protruding ring. The upper inner side walls of both half shells have a semi-circular structure for embedding the protruding ring. The upper inner side walls of both half shells have a semi-circular structure for superimposed on the top surface of the mounting base. The space between the bottom surface of the embedding ring, the bottom surface of the limiting ring and the top surface of the placement base constitutes the aforementioned accommodating space. The embedding ring and the limiting ring constitute the aforementioned limiting structure.

[0010] The mounting chamber of the housing is divided into a power supply chamber and a control chamber by a partition. The power supply chamber is located above the control chamber. The control chamber contains a control chip, and the power supply chamber contains a power supply battery to power the control chip. An opening penetrating the first half is opened on the outer wall of the first half facing away from the second half. The moving block is fastened to the first half and is positioned facing away from the second half. The control chip is embedded in the first half. A control switch for controlling the LED beads is provided at the position of the control chip facing the opening. A button for activating the control switch is provided on the moving block at the position corresponding to the control switch.

[0011] The housing is a hollow cavity with an open top surface. The housing is fitted over two half-shells, and a movable gap is formed between the bottom surface of the two half-shells and the inner bottom surface of the housing. The upper end of the lens mount extends beyond the top surface of the housing, and the lower end of the lens mount is confined within the upper end of the housing. The inner sidewall of the housing and the inner sidewall of the second half-shell are provided with guide structures to guide the moving seat when it moves up and down. The outer sidewall of the housing has an extension window at the position of the moving block, which is strip-shaped and extends in the vertical direction. The moving block is a strip-shaped structure extending in the vertical direction. The vertical dimension of the moving block is smaller than the vertical dimension of the extension window. The moving block has protruding strips on both sides along the circumferential direction of the housing, which extend in the vertical direction and fit against the outer sidewall of the housing.

[0012] The housing has an upper housing and a lower housing. The upper housing has a hollow structure that runs through the top and bottom, and the lower housing has a hollow structure with an open top surface. The upper end of the lens holder is stacked on the top surface of the upper housing. The lower outer wall of the lens holder is recessed with a limiting groove in the form of a closed ring. The upper end of the upper housing is sleeved on the lower end of the lens holder, and the inner side wall of the upper housing is provided with a limiting protrusion that extends into the limiting groove at the position corresponding to the limiting groove. The upper ends of the two half-shells extend into the lower end of the upper housing, and the lower end of the upper housing is screwed together with the upper end of the lower housing, with the lower ends of the two half-shells extending into the lower housing.

[0013] The lower housing has a movable shell and a disassembly cover. The movable shell is a hollow strip structure that runs vertically through the upper and lower parts. The upper end of the movable shell is screwed together with the lower end of the upper housing. The disassembly cover seals the open bottom surface of the movable shell and is disassembled and connected to the lower end of the movable shell.

[0014] The second half is recessed on the side opposite to the first half, with a guide groove extending vertically in the up-down direction. The inner wall of the movable shell is provided with a guide protrusion extending into the guide groove at the position corresponding to the guide groove. The guide groove and the guide protrusion constitute the above-mentioned guide structure.

[0015] This novel zoom flashlight, during assembly, has a light-emitting element mounted on a mounting base, which is then embedded within an accommodating space and electrically connected to the light-emitting element. The first and second halves are then snapped together to connect the mounting base and the movable base. The movable base is then mounted on the housing, and the lens is mounted on a lens mount, which is then positioned within the upper part of the housing, completing the assembly. In use, the flashlight is switched on, and the light-emitting element emits light from the exposed window of the mounting base. The light shines through the lens on the lens mount. Manually pushing the movable block up and down causes the movable base to move up and down within the housing, thus changing the distance between the LED on the mounting base and the lens on the lens mount, achieving zoom. Compared to existing technologies, this method only requires manually pushing the movable block up and down to adjust the distance between the lens and the LED, achieving zoom. Zooming can be achieved by pushing the movable block 7 with one hand, making operation simple and application flexible. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure of this utility model without the shell.

[0019] Figure 4 This is a schematic diagram of the present invention, omitting the shell and the second half.

[0020] Figure 5 This is an exploded structural diagram of the present invention, omitting the shell and the second half.

[0021] Figure 6 This is a schematic diagram of the structure of the second half of the present invention. Detailed Implementation

[0022] To further explain the technical solution of this utility model, a detailed description is provided below in conjunction with the accompanying drawings.

[0023] A new type of zoom flashlight, such as Figures 1-6As shown, the device includes a housing 1, a lamp holder for placing a light-emitting element, and a lens holder 2 for placing a lens and focusing the light emitted by the light-emitting element. The light-emitting element can be an LED chip. The lens holder 2 is installed at one end of the housing 1, with the lens holder 2 positioned above it. The lamp holder is located below and opposite the lens holder 2. A lens 21 is housed inside the lens holder 2, and the light-emitting element is located in the upper part of the lamp holder. The light-emitting element and the LED chip are arranged vertically opposite each other. The lamp holder is mounted on the housing 1 in a way that allows it to move vertically. In application, moving the lamp holder vertically causes the light-emitting element to move vertically with it. Therefore, the distance between the light-emitting element and the LED chip changes, and the light emitted by the LED chip passes through the lens, thus achieving zooming.

[0024] The lamp holder is located inside the housing 1. The lamp holder has a mounting base 3 and a movable base 4 for mounting the light-emitting element. The movable base 4 has a first half 41 and a second half 42 that are laterally fastened and disassembled together. The movable base 4 has an exposed window facing the upper end of the lens holder 2 for exposing the lamp bead. Specifically, the first half 41 and the second half 42 are both semi-cylindrical shells with side panels and a bottom plate. The side panels are vertically arranged semi-circular arc plates with concave cavities. The direction of the two half shells relative to each other is... In the front-rear direction, the front half-shell is the first half-body 41, and the rear half-shell is the second half-body 42. The front semi-circular arc plate is concave forward, and the rear semi-circular arc plate is concave backward. The concave arc cavity of the semi-circular arc plate is a hollow semi-cylindrical structure that is open on one side and extends vertically. The bottom plate is a semi-circular plate that seals the open bottom surface of the semi-circular arc plate. The two semi-circular arc plates are fastened together. That is, the four corners of the rear side wall of the semi-circular arc plate of the first half-body 41 are concave forward and extend in the front-rear direction, which is connected to the first half-body. The hollow chambers are connected by a fastening groove. A fastening block 411 protrudes from the fastening groove towards the axis of the first half 41. The rear side of the fastening block 411 is a first inclined guide surface 4111 extending outwards. Two opposing first inclined guide surfaces 4111 form a flared space that gradually expands from front to back. The inner wall of the second half 42, corresponding to the positions of the four fastening grooves, has a fastening protrusion 421 embedded in the fastening groove. The fastening protrusion 421 extends forward beyond the front side of the second half 42. The front side of 21 is an inwardly inclined second inclined guide surface 4211 that guides and cooperates with the first inclined guide surface 4111. The two opposing second inclined guide surfaces 4211 form a flared space that gradually expands from front to back. The outer side of the fastening protrusion 421 is recessed with a fastening hole 100 for the fastening block 411 to be embedded in. The fastening hole 100 extends in the left-right direction. The two semi-circular arc plates are opposite each other to form a mounting chamber with an open top surface and a hollow cylindrical structure. The open top surface of the mounting chamber is the aforementioned exposed window. In application, the four fastening protrusions 421 are aligned with the four fastening slots. Under the action of the first inclined guide surface 4111 and the second inclined guide surface 4211, the four fastening protrusions 421 are correspondingly embedded in the four fastening slots. When the fastening protrusions 421 are fully inserted into the fastening slots, the fastening block 411 is embedded in the fastening hole 100, realizing the fastening of the two halves of the shell.

[0025] The movable base 4 has a receiving space communicating with the exposed window. The receiving space is located in the upper end of the mounting chamber, and the mounting base 3 is embedded in the receiving space. Specifically, the upper inner sidewall of the first half 41 has a placement seat 5 for placing the mounting base 3. The upper ends of the two half shells have a limiting structure to prevent the mounting base 3 from being removed from the two half shells. The space between the placement seat 5 and the limiting structure constitutes the aforementioned receiving space. That is, the mounting base 3 has a block structure. The top surface of the mounting base 3 has a recessed mounting groove 200 for installing a light-emitting body. The light-emitting surface of the light-emitting body is facing upward. The installation method of the light-emitting body is a well-known technique to those skilled in the art and will not be described in detail here. The upper outer sidewall of the mounting base 3 has a protruding ring 31 with a closed-loop structure. The bottom surface of the mounting base 3 is superimposed on the top surface of the placement seat 5. The placement seat 5 has a block structure. The rear of the placement seat 5... A positioning groove 200 extending in the front-rear direction is provided on the side. The inner wall of the positioning groove 200 is provided with a plurality of strip grooves extending in the circumferential direction of the positioning groove 200. The inner wall of the second half 42 is provided with a positioning protrusion 422 embedded in the positioning groove 200. The outer wall of the positioning protrusion 422 is provided with a strip block embedded in the strip groove at the position corresponding to the strip groove. The upper inner wall of both half shells is provided with a semi-annular structure for the protruding ring 31 to be embedded in. The upper inner wall of both half shells is provided with a semi-annular structure for the limiting ring 62 to be stacked on the top surface of the mounting base 3. The two embedding rings 61 and the two limiting rings 62 form a closed ring structure. The space between the bottom surface of the embedding ring 61, the bottom surface of the limiting ring 62 and the top surface of the mounting base 5 constitutes the above-mentioned accommodating space. The embedding ring 61 and the limiting ring 62 constitute the above-mentioned limiting structure. In application, a light-emitting element is installed inside the mounting base 3, and the light emitted by the light-emitting element can be emitted from the exposed window. The mounting base 3 is inserted into the opening of the first half 41 and placed on the top surface of the placement base 5. At this time, the mounting base 3 is embedded in the accommodating space. Moreover, the positioning protrusion 422 and the positioning groove 200 facilitate the positioning of the first half 41 and the second half 42, so that the first half 41 and the second half 42 can be quickly snapped together.

[0026] The movable seat 4 is fitted into the housing 1 in a way that allows it to move up and down. A movable block 7, which can move up and down and drive the movable seat 4 to move up and down, is provided outside the housing 1. The movable block 7 is located on the semi-circular arc plate of the first half 41. Specifically, the housing 1 is a hollow cavity with an open top surface, meaning the housing 1 has an upper housing 11 and a lower housing 12. The upper housing 11 has a hollow structure that extends vertically, and the lower housing 12 has a hollow structure with an open top surface. The lower end of the upper housing 11 and the upper end of the lower housing 12 are screwed together. The upper end of the lens seat 2 is stacked on the top surface of the upper housing 11. The lens seat 2 has a hollow structure that extends vertically. The lens 21 is installed in the hollow cavity of the lens seat 2. The installation method of the lens 21 is well known to those skilled in the art and will not be described in detail here. That is, the outer wall of the upper end of the lens seat 2 is provided with a stacking ring 22 that overlaps the top surface of the upper housing. The housing 1 is fitted onto the two half-shells, and the upper ends of the two half-shells extend into the upper housing. The lower end of the housing 11 is inside the lower half of the housing, and the lower ends of the two half-shells extend into the lower housing 12. A moving distance of 300 is formed between the bottom surface of the two half-shells and the inner bottom surface of the housing 1. The outer side wall of the lens seat 21 is matched with the upper inner side wall of the upper housing 11. That is, the lower outer side wall of the lens seat 2 is recessed with a limiting groove in the form of a closed ring. The inner side wall of the upper housing 11 is provided with a limiting protrusion ring that extends into the limiting groove at the position corresponding to the limiting groove. The outer side wall of the lower housing 12 is provided with an extension window 400 for the moving block 7 to extend outward at the position of the moving block 7. The extension window 400 is strip-shaped and extends in the vertical direction. The moving block 7 is a strip-shaped structure that extends in the vertical direction. The vertical dimension of the moving block 7 is much smaller than the vertical dimension of the extension window 400. The moving block 7 is provided with a bonding strip 71 that extends in the vertical direction and adheres to the outer side wall of the housing 1 on both sides of the circumferential direction of the housing 1. In application, lens 21 is installed, and lens mount 2 is positioned in the upper end of upper housing 11 by limiting protrusion and limiting groove. Moving block 7 is manually pushed up and down, moving block 7 moves up and down along protruding window 400, driving moving seat 4 to move up and down, thereby driving mounting seat 3 to move up and down, thus achieving zoom.

[0027] This novel zoom flashlight, during assembly, has the light-emitting element mounted on a mounting base, which is then embedded within an accommodating space and electrically connected to the light-emitting element. The first half 21 and the second half 22 are then fastened together to connect the mounting base and the movable base. Next, the lens is mounted on a lens holder, which is then positioned within the upper end of the upper housing. The upper end of the movable base extends into the upper housing, and the upper and lower housings are screwed together. Finally, the movable block is fastened to the first half, completing the assembly. In use, the flashlight is switched on, and the light-emitting element emits light from the exposed window of the mounting base. The light shines through the lens on the lens holder 2. Manually pushing the movable block 7 up and down causes the movable base 4 to move up and down within the housing 1, thereby changing the distance between the LED on the mounting base 3 and the lens on the lens holder 2, achieving zoom. Compared to existing technologies, only manually pushing the movable block 7 up and down is needed to adjust the distance between the lens and the LED to achieve zoom. Zooming can be achieved by pushing the movable block 7 with one hand, making operation simple and application flexible. Furthermore, each component has a simple structure and can be disassembled and installed, making maintenance convenient.

[0028] The preferred embodiment of this invention is that the lower housing 12 has a movable shell 121 and a disassembly cover 122. The movable shell 121 is a hollow strip structure that runs vertically through the interior. The upper end of the movable shell 121 is screwed together with the lower end of the upper housing 11, meaning that the inner diameter of the upper housing 11 is larger than the inner diameter of the lower housing 12. The bottom surface of the upper housing 11 has a downward-facing protruding locking ring 111 that gradually narrows from top to bottom and has a closed-loop structure. The inner side wall of the lower end of the locking ring 111 has an internal thread, and the outer side wall of the upper end of the lower housing 12 has an external thread that engages with the internal thread. The disassembly cover 122 seals the bottom opening of the movable shell 121 and is disassembled and connected to the lower end of the movable shell 121. The outer side wall of the lower end of the movable shell 121 has a disassembly protrusion. The disassembly cover 122 has a hollow structure with an open top surface, and the inner side wall of the disassembly cover 122 has a disassembly groove into which the disassembly protrusion extends. In application, the upper end of the movable housing 121 is screwed together with the locking ring 111 of the upper housing 11, and then the disassembly cover 122 is disassembled and engaged with the lower end of the movable housing 121 through the disassembly protrusion and disassembly groove. The housing is divided into three parts, which facilitates the disassembly and installation of the housing.

[0029] In this invention, preferably, each of the upper outer walls of the two half-shells has a protruding ring extending along the outer wall of the half-shell and forming a semi-annular structure. Each of the outer walls of the two rings has a recessed locking groove extending along the outer extension direction of the ring. The two locking grooves form a closed-annular opening, within which a closed-annular locking ring 43 is fitted, with the outer diameter of the locking ring 43 being larger than the inner diameter of the open opening of the locking ring 111. In application, the upper end of the movable seat 4 can be confined within the upper housing 11 by the rings and the locking ring 43, thus limiting the range of movement of the movable seat 4.

[0030] The mounting chamber is divided into a power supply chamber and a control chamber by a partition 8. The power supply chamber is located above the control chamber. A control chip is installed in the control chamber, and a power supply battery for powering the control chip is installed in the power supply chamber. The control chip is electrically connected to the light emitter. An opening penetrating the first half 41 is provided on the outer wall facing away from the second half 42. The moving block 7 is fastened to the first half 41 and is positioned facing away from the second half 42. That is, the inner side of the first half 4 has a mounting block 9 extending vertically on the side facing the second half 42. The front side of the first half 4 has a recessed groove leading to the mounting block 9. The rear end of the moving block 7 is embedded in the recessed groove, and the upper and lower ends of the recessed groove have through-holes extending vertically. The upper inner side wall of the recessed groove is upward at the position corresponding to the through-hole at the upper end. The mounting block 9 has an upper through-hole that is connected to the through-hole and extends to the top surface of the mounting block. The lower side wall of the mounting groove has a lower through-hole that is connected to the through-hole and extends to the top surface of the mounting block 9. The top and bottom surfaces of the moving block 7 have protruding inserts 71 that extend into the through-hole at the positions corresponding to the through-hole. The opposite sides of the two inserts 71 have protruding limiting blocks 72 that extend into the upper and lower through-holes respectively. The rear side of the mounting block has a recessed mounting groove for embedding the control chip. The bottom of the mounting groove has an opening that extends horizontally through the mounting block and falls within the mounting groove. The control chip has a control switch for controlling the opening and closing of the LED beads at the position facing the opening. The control switch extends out of the opening. The moving block 7 has a button 73 for activating the control switch at the position corresponding to the control switch. The method of electrically connecting the control chip to the light emitter, the method of installing the control chip and the power supply battery in the mounting cavity, the method of fastening the movable block 7 to the first half, and the structure of the control switch and button are all well-known technologies to those skilled in the art and will not be described in detail here. Preferably, the first half 21 and the movable block 7 are provided with power supply ports that are electrically connected to the control chip and can supply power to the power supply battery. The electrical connection method of the power supply port and the method of supplying power to the power supply battery through the power supply port are well-known technologies to those skilled in the art and will not be described in detail here. In application, the movable block 7 is fastened to the first half 4, facilitating the installation and removal of the movable block 7.

[0031] In this invention, an advantage is that the inner wall of the housing 1 and the inner wall of the second half 42 are provided with guide structures to guide the moving seat 4 when it moves up and down. Specifically, the second half 42 has a guide groove (not shown in the figure) extending vertically in the vertical direction recessed on the side opposite to the first half 41, and the inner wall of the moving housing 121 has a guide protrusion extending into the guide groove at the position corresponding to the guide groove. The guide groove and the guide protrusion constitute the above-mentioned guide structure. In application, when the moving seat 4 moves up and down, under the guidance of the guide groove and the guide protrusion, the moving seat 4 is not easily moved circumferentially within the housing.

[0032] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.

Claims

1. A novel zoom flashlight, comprising a housing, a lamp holder for holding a light-emitting element, and a lens holder for holding a lens and converging the light emitted by the light-emitting element, wherein the lens holder is mounted at one end of the housing, and the lamp holder is mounted on the housing in a manner that allows it to move up and down; characterized in that: The lamp holder is located inside the housing. The lamp holder has a mounting base and a movable base for mounting the light-emitting element. The movable base has a first half and a second half that are laterally fastened and disassembled together. The end of the movable base facing the lens base has an exposed window, and the movable base has an accommodating space that communicates with the exposed window. The mounting base is embedded in the accommodating space. The movable base is fitted into the housing in a way that allows it to move up and down. The housing is provided with a movable block that can move up and down and drive the movable base to move up and down.

2. The novel zoom flashlight according to claim 1, characterized in that: Taking the position of the lens mount as the top, both the first half and the second half are semi-shells with a semi-cylindrical structure. The semi-shell has a side wall and a bottom plate. The side wall is a vertically set semi-circular arc plate with a concave arc cavity. The concave arc cavity of the semi-circular arc plate is a hollow semi-cylindrical structure that is open on one side and runs through the top and bottom. The bottom plate is a semi-circular plate that blocks the bottom opening of the semi-circular arc plate. The two semi-circular arc plates are fastened together and form an installation chamber with an open top surface and a hollow cylindrical structure. The top opening of the installation chamber is the aforementioned exposed window. The accommodating space is located in the upper part of the installation chamber. The moving block is located on the semi-circular arc plate of the first half.

3. A novel zoom flashlight according to claim 2, characterized in that: In the two half-shells, the upper inner sidewall of one half-shell is provided with a placement seat for placing the mounting seat, and the upper ends of the two half-shells are provided with a limiting structure to prevent the mounting seat from being removed from the mounting cavity. The space between the placement seat and the limiting structure constitutes the aforementioned accommodating space.

4. A novel zoom flashlight according to claim 3, characterized in that: The mounting base has a block structure. The top surface of the mounting base is recessed with a mounting groove for mounting the light source. The upper outer side wall of the mounting base has a protruding ring with a closed-loop structure. The bottom surface of the mounting base is superimposed on the top surface of the placement base. The upper inner side walls of both half shells have a semi-circular structure for embedding the protruding ring. The upper inner side walls of both half shells have a semi-circular structure for embedding the protruding ring. The upper inner side walls of both half shells have a semi-circular structure for superimposed on the top surface of the mounting base. The space between the bottom surface of the embedding ring, the bottom surface of the limiting ring and the top surface of the placement base constitutes the aforementioned accommodating space. The embedding ring and the limiting ring constitute the aforementioned limiting structure.

5. A novel zoom flashlight according to claim 3, characterized in that: The mounting chamber of the housing is divided into a power supply chamber and a control chamber by a partition. The power supply chamber is located above the control chamber. The control chamber contains a control chip, and the power supply chamber contains a power supply battery to power the control chip. An opening penetrating the first half is opened on the outer wall of the first half facing away from the second half. The moving block is fastened to the first half and is positioned facing away from the second half. The control chip is embedded in the first half. A control switch for controlling the LED beads is provided at the position of the control chip facing the opening. A button for activating the control switch is provided on the moving block at the position corresponding to the control switch.

6. A novel zoom flashlight according to claim 2, characterized in that: The housing is a hollow cavity with an open top surface. The housing is fitted over two half-shells, and a movable gap is formed between the bottom surface of the two half-shells and the inner bottom surface of the housing. The upper end of the lens mount extends beyond the top surface of the housing, and the lower end of the lens mount is confined within the upper end of the housing. The inner sidewall of the housing and the inner sidewall of the second half-shell are provided with guide structures to guide the moving seat when it moves up and down. The outer sidewall of the housing has an extension window at the position of the moving block, which is strip-shaped and extends in the vertical direction. The moving block is a strip-shaped structure extending in the vertical direction. The vertical dimension of the moving block is smaller than the vertical dimension of the extension window. The moving block has protruding strips on both sides along the circumferential direction of the housing, which extend in the vertical direction and fit against the outer sidewall of the housing.

7. A novel zoom flashlight according to claim 6, characterized in that: The housing has an upper housing and a lower housing. The upper housing has a hollow structure that runs through the top and bottom, and the lower housing has a hollow structure with an open top surface. The upper end of the lens holder is stacked on the top surface of the upper housing. The lower outer wall of the lens holder is recessed with a limiting groove in the form of a closed ring. The upper end of the upper housing is sleeved on the lower end of the lens holder, and the inner side wall of the upper housing is provided with a limiting protrusion that extends into the limiting groove at the position corresponding to the limiting groove. The upper ends of the two half-shells extend into the lower end of the upper housing, and the lower end of the upper housing is screwed together with the upper end of the lower housing, with the lower ends of the two half-shells extending into the lower housing.

8. A novel zoom flashlight according to claim 7, characterized in that: The lower housing has a movable shell and a disassembly cover. The movable shell is a hollow strip structure that runs vertically through the upper and lower parts. The upper end of the movable shell is screwed together with the lower end of the upper housing. The disassembly cover seals the open bottom surface of the movable shell and is disassembled and connected to the lower end of the movable shell.

9. A novel zoom flashlight according to claim 8, characterized in that: The second half is recessed on the side opposite to the first half, with a guide groove extending vertically in the up-down direction. The inner wall of the movable shell is provided with a guide protrusion extending into the guide groove at the position corresponding to the guide groove. The guide groove and the guide protrusion constitute the above-mentioned guide structure.

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