A rotary dial switch and a flashlight

Abstract

This utility model discloses a rotary dial switch and a flashlight. The rotary dial includes a button assembly, a dial assembly, and a lamp holder assembly. The lamp holder assembly includes a lamp holder and a built-in PCB board. A first switch and a second switch are disposed on the PCB board. The lamp holder has a mounting through hole perpendicular to the PCB board, and pin holes and positioning holes are provided around the hole. The dial assembly includes a T-shaped dial, a dial bracket, a limiting pin, a positioning head, and a spring. The inner wall of the dial's rotating part has a limiting pin movable groove and a gear positioning groove. A handle on the dial bracket is used to trigger the first switch. The button assembly includes a button and a spring, which can trigger the second switch. The technical solution provided by this utility model avoids the problems of existing conventional magnetic and mechanical switches, optimizes space utilization, and reduces the requirements for precision machining.

Description

Technical Field

[0001] This utility model relates to the field of flashlight technology, and in particular to a rotary dial switch and a flashlight. Background Technology

[0002] Currently, flashlight switches are broadly classified into two types: magnetic switches and mechanical switches. Magnetic switches, with a Hall effect switch and a magnet as their core, are susceptible to interference from external magnetic fields. When a magnet approaches, the magnetic switch is prone to failure. Mechanical switches mainly use a combination of a copper sheet and a spring. This design requires a large space and high precision in the processing of the spring. When the spring deforms and cannot make good contact with the copper sheet, the mechanical switch is prone to failure. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a rotary dial switch and a flashlight.

[0004] A rotary dial switch includes a dial assembly and a lamp holder assembly; wherein,

[0005] The lamp holder assembly includes a lamp holder and a PCB board placed in the inner cavity of the lamp holder; a first switch is provided on the PCB board; a mounting through hole perpendicular to the horizontal plane of the PCB board is provided on the lamp holder; the mounting through hole is used to assemble the dial assembly; pin pre-drilled holes and positioning head pre-drilled holes are provided on the outer wall of the lamp holder around the mounting through hole;

[0006] The dial assembly includes a dial, a dial bracket, a limiting pin, a positioning head, and a positioning head spring; the longitudinal section of the dial is T-shaped and includes a rotating part and a column part connected together; the rotating part and the column part have cavities for installing button assemblies; the inner wall of the rotating part is provided with a limiting pin movable groove and a dial position positioning groove that corresponds one-to-one with the number and position of the first switches.

[0007] The dial bracket is provided with a contact handle that contacts the first switch. The dial bracket is used to be sleeved on the column and moves synchronously with the dial. When the dial rotates, it drives the contact handle to contact the first switch and trigger a signal.

[0008] The limiting pin is assembled between the pin pre-drilled hole and the limiting pin movable groove, and the positioning head spring is fitted after the inner cavity of the positioning head. The two are assembled together between the positioning head pre-drilled hole and the dial position positioning groove.

[0009] Preferably, the first switch is a limit switch, and the limit switch is provided with a handle for contacting the contact handle.

[0010] Preferably, the number of limit switches is two or more, and they are distributed in an arc shape along the geometric center of the rotating part of the dial.

[0011] Preferably, it also includes a button assembly, and a second switch is also provided on the PCB board;

[0012] The button assembly includes a button and a button spring; the button is fitted with the button spring and then assembled in the cavity of the dial, so that when the button is pressed, it can contact the second switch and trigger a signal.

[0013] Preferably, it further includes a first waterproof ring fitted between the button and the inner wall of the dial post.

[0014] Preferably, it further includes a second waterproof ring fitted between the column portion of the dial and the inner wall of the mounting through hole of the lamp holder.

[0015] Preferably, it also includes a bracket positioning pin, which passes laterally through the mounting through hole of the lamp holder, the dial bracket, and the column of the dial, so that the three are fixed together.

[0016] Preferably, the bracket positioning pins are two in number and arranged symmetrically.

[0017] A flashlight includes a body and a rotary dial switch as described above; the rotary dial switch is disposed on the body.

[0018] Preferably, it also includes a barrel head with a light-emitting component; the lamp holder of the rotary dial switch is disposed between the barrel head and the barrel body.

[0019] The rotary dial switch and flashlight provided by this utility model, when in use, rotating the dial causes the handle on the dial bracket to contact the first switch on the PCB board and triggers a control signal to switch the gear or working mode; on this basis, pressing the button in the middle of the dial can contact the second switch under the conditions limited by the first switch and form a control signal, achieving the effect of superimposing the gear or working mode.

[0020] Compared with existing technologies, this solution replaces the existing spring-type mechanical switch by linking the dial assembly with the first switch, saving space and reducing processing complexity. Furthermore, by combining the dial assembly and the button assembly, it not only avoids the problems of existing magnetic switches, but also optimizes space utilization with the vertical installation structure, using only one-third of the space of existing spring-based mechanical switches. This small space requirement replaces the traditional spring contact method and reduces the requirements for precision machining. Attached Figure Description

[0021] Figure 1This is an exploded view of the rotary dial switch in an embodiment of this utility model;

[0022] Figure 2 This is a perspective view of a portion of the structure of the rotary dial switch in an embodiment of this utility model;

[0023] Figure 3 This is another perspective view of a portion of the structure of the rotary dial switch in an embodiment of this utility model;

[0024] Figure 4 This is a cross-sectional view of the flashlight in an embodiment of this utility model;

[0025] Figure 5 This is a partial cross-sectional view of the flashlight in an embodiment of this utility model;

[0026] The markings in the accompanying drawings are as follows:

[0027] 101. Button; 102. Button spring; 103. First waterproof ring;

[0028] 201. Dial; 2011. Rotating part; 2012. Column part; 202. Dial bracket; 2021. Handle; 203. Limiting pin; 204. Positioning head; 205. Positioning head spring; 207. Limiting pin movable groove; 208. Dial gear positioning groove; 209. Second waterproof ring;

[0029] 301. Lamp holder; 302. PCB board; 303. First switch; 304. Second switch; 305. Mounting through hole; 306. Pin pre-drilled hole; 307. Positioning head pre-drilled hole; 308. Bracket positioning pin; 309. Button;

[0030] 401. Body; 402. Head; 403. Tail; 404. Rotary dial switch. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] Provide a rotary dial switch and a flashlight, such as Figures 1 to 5 As shown, the rotary dial switch includes a button assembly, a dial assembly, and a lamp holder assembly.

[0033] The lamp holder assembly includes a lamp holder 301 and a PCB board 302 placed inside the lamp holder cavity; a first switch 303 and a second switch 304 are provided on the PCB board; a mounting through hole 305 perpendicular to the horizontal plane of the PCB board is provided on the lamp holder; the mounting through hole is used to assemble the dial assembly; a pin pre-drilled hole 306 and a positioning head pre-drilled hole 307 are provided on the outer wall of the lamp holder around the mounting through hole.

[0034] The mounting through-holes are positioned perpendicular to the horizontal plane of the PCB board to accommodate the dial assembly. The first and second switches are used to control different functions of the flashlight. For example, the first switch is a limit switch, and the second switch is an electronic switch, both of which can be used to achieve gear shifting or mode switching; and the two can be combined to form multiple functions, such as gear shifting in a certain mode.

[0035] The dial assembly includes a dial 201, a dial bracket 202, a limit pin 203, a positioning head 204, and a positioning head spring 205; the longitudinal section of the dial is T-shaped and includes a rotating part 2011 and a column part 2012 connected together; the rotating part and the column part have cavities for installing button assemblies; the inner wall of the rotating part is provided with a limit pin movable groove 207 and a dial position positioning groove 208 corresponding one-to-one with the number and position of the first switch.

[0036] When the dial assembly is installed in the mounting through-hole, the rotating part protrudes outside the base for easy user rotation. The column is perpendicular to the horizontal plane of the PCB board, facilitating the installation of the button assembly inside. Pressing down on the button initiates contact with the second switch on the PCB board. A limit pin moves within its movable slot to limit the angle range of the dial's rotation. The dial position positioning slots correspond to the first switch, and their number can be flexibly set, with each slot corresponding to one position or mode. For example, if there are three slots for both the first switch and the dial position positioning slots, there are three positions or modes.

[0037] The dial bracket is provided with a contact handle 2021 that contacts the first switch. The dial bracket is used to be sleeved on the column and moves synchronously with the dial. When the dial rotates, it drives the contact handle to contact the first switch and trigger a signal.

[0038] The dial holder has a frame that can be fitted and snapped onto the column, and a handle extends from the frame, the specific shape of which is not limited. Meanwhile, the first switch has a push handle 309; when the dial is rotated, it causes the push handle to contact the push handle on the first switch, thereby triggering a signal to the IC on the PCB board for function judgment.

[0039] The limiting pin is assembled between the pin pre-drilled hole and the limiting pin movable groove, and the positioning head spring set is fitted into the inner cavity of the positioning head. The two are assembled together between the positioning head pre-drilled hole and the dial position positioning groove.

[0040] First, the limiting pin, positioning head spring, and positioning head are installed into the limiting pin movable slot and the dial position positioning slot on the lamp holder. When the dial rotates, the dial presses down on the positioning head, causing the positioning head to squeeze the positioning head spring. The positioning head then jumps into the dial position positioning slot, while the limiting pin restricts the rotation range of the dial.

[0041] The button assembly includes a button and a button spring; the button is fitted with the button spring and then assembled in the cavity of the dial, so that when the button is pressed, it can contact the second switch and trigger a signal.

[0042] The button's shape matches the cavity shape of the dial's rotating part and the column part. When the button is pressed, it contacts the second switch and triggers a signal, which can function alone or in combination with the first switch. A button spring is used to reset the button.

[0043] Furthermore, there are two or more first switches, which are arranged in an arc shape along the geometric center of the rotating part of the dial; correspondingly, the number and position of the dial position positioning slots are also corresponding, that is, each time the dial is rotated, the positioning head enters a dial position positioning slot, which will contact a first switch and trigger a signal.

[0044] Furthermore, a first waterproof ring 103 is provided between the button and the inner wall of the dial post, and a second waterproof ring 209 is provided between the dial post and the inner wall of the mounting hole of the lamp holder to enhance waterproofing and prevent water from seeping into the dial from the button and into the base from the dial, respectively.

[0045] Furthermore, it also includes a bracket positioning pin 308, which passes laterally through the mounting hole of the lamp holder, the dial bracket, and the column of the dial, thus fixing the three together. Preferably, there are two bracket positioning pins symmetrically arranged to form a stable clamping force.

[0046] The flashlight includes a body and the aforementioned rotary dial switch, which is located on the body.

[0047] Furthermore, in one implementation, the flashlight includes a head 401, a body 402, and a tail 403; the lamp holder 301 of the rotary dial switch is disposed between the head and the body.

[0048] The head is the housing structure at the front of the flashlight that houses the light-emitting component, while the body is mainly used to install the battery. Other conventional structural components of a flashlight will not be described in detail here.

[0049] The above is a description of the present utility model, which is used to help understand the present utility model. However, the implementation of the present utility model is not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the principle of the present utility model shall be considered as equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A rotary dial switch, characterized in that, Includes a dial assembly and a lamp holder assembly; among which, The lamp holder assembly includes a lamp holder and a PCB board placed in the inner cavity of the lamp holder; a first switch is provided on the PCB board; a mounting through hole perpendicular to the horizontal plane of the PCB board is provided on the lamp holder; the mounting through hole is used to assemble the dial assembly; pin pre-drilled holes and positioning head pre-drilled holes are provided on the outer wall of the lamp holder around the mounting through hole; The dial assembly includes a dial, a dial bracket, a limiting pin, a positioning head, and a positioning head spring; the longitudinal section of the dial is T-shaped and includes a rotating part and a column part connected together; the rotating part and the column part have cavities for installing button assemblies; the inner wall of the rotating part is provided with a limiting pin movable groove and a dial position positioning groove that corresponds one-to-one with the number and position of the first switches. The dial bracket is provided with a contact handle that contacts the first switch. The dial bracket is used to be sleeved on the column and moves synchronously with the dial. When the dial rotates, it drives the contact handle to contact the first switch and trigger a signal. The limiting pin is assembled between the pin pre-drilled hole and the limiting pin movable groove, and the positioning head spring is fitted after the inner cavity of the positioning head. The two are assembled together between the positioning head pre-drilled hole and the dial position positioning groove.

2. The rotary dial switch as described in claim 1, characterized in that, The first switch is a limit switch, and the limit switch is provided with a handle for contacting the contact handle.

3. The rotary dial switch as described in claim 2, characterized in that, The number of limit switches is two or more, and they are distributed in an arc shape along the geometric center of the rotating part of the dial.

4. The rotary dial switch as described in claim 1, characterized in that, It also includes a button assembly, and a second switch is also provided on the PCB board; The button assembly includes a button and a button spring; the button is fitted with the button spring and then assembled in the cavity of the dial, so that when the button is pressed, it can contact the second switch and trigger a signal.

5. The rotary dial switch as described in claim 4, characterized in that, It also includes a first waterproof ring fitted between the inner wall of the button and the dial post.

6. The rotary dial switch as described in claim 1, characterized in that, It also includes a second waterproof ring fitted between the column portion of the dial and the inner wall of the mounting through hole of the lamp holder.

7. The rotary dial switch as described in any one of claims 1 to 6, characterized in that, It also includes a bracket positioning pin, which passes laterally through the mounting hole of the lamp holder, the dial bracket, and the column of the dial, so that the three are fixed together.

8. The rotary dial switch as described in claim 7, characterized in that, The bracket has two positioning pins, which are arranged symmetrically.

9. A flashlight, characterized in that, It includes a cylinder body and a rotary dial switch as described in any one of claims 1 to 8; the rotary dial switch is disposed on the cylinder body.

10. The flashlight as described in claim 9, characterized in that, It also includes a barrel head with a light-emitting component; the lamp holder of the rotary dial switch is disposed between the barrel head and the barrel body.

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