A cap and a laser pointer
By using a design that links the inner and outer covers together and employing elastic components, the problem of children easily opening the covers of existing laser pointers has been solved, thus achieving the function of preventing accidental operation and improving product safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO DELI TOOLS CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-29
AI Technical Summary
The cap design of existing laser pointers is too simple, making it easy for children to open, which can lead to misoperation of the laser function and pose a risk of injury to the surrounding environment and people's eyes.
It adopts a design that links the inner and outer covers, and locks and unlocks by pressing and rotating. Combined with the elastic element, it prevents children from accidentally operating it.
It effectively prevents children from accidentally operating the laser function, reduces the risk of eye injury to unrelated people in the vicinity, and improves product safety.
Smart Images
Figure CN224304266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of daily necessities technology, specifically to a cover and a laser pen. Background Technology
[0002] In existing technologies, laser pointer designs with detachable caps typically include a removable cap to cover the laser head. When the laser function is needed, the user can remove the cap; when not in use, the cap protects the laser head.
[0003] However, the inventors discovered that the pen cap removal mechanism of the aforementioned product is too simple and simplistic, requiring only slight force to open. In particular, children can easily open the laser pointer and activate the laser function, potentially causing serious harm to the eyes of those in the surrounding environment and people. Utility Model Content
[0004] The purpose of this utility model is to provide a cover and a laser pointer, which can be linked by pressing the cover to make the inner cover and the outer cover work together, and then locked and unlocked by rotating the cover. This effectively prevents children from accidentally operating the laser pointer, reduces the risk of eye injury to unrelated people, and improves product safety.
[0005] The embodiments of this utility model can be implemented as follows:
[0006] In a first aspect, the present invention provides a cover body, including an inner cover, an outer cover, and an elastic element;
[0007] The outer cover is fitted around the outer periphery of the inner cover, the inner cover and the outer cover are rotatably fitted, and the inner sidewall of the inner cover is provided with internal threads for fitting with the main body.
[0008] One of the outer top wall of the inner cover and the inner top wall of the outer cover is provided with a first limiting part, and the other is provided with a second limiting part that can cooperate with the first limiting part;
[0009] The elastic element is at least partially sandwiched between the inner cover and the outer cover. When the elastic element is compressed, the first limiting part and the second limiting part cooperate. When the elastic element is decompressed, the first limiting part and the second limiting part disengage.
[0010] In an optional embodiment, the inner top surface of the outer cover is provided with an annular groove, and the elastic element is a silicone ring that mates with the annular groove.
[0011] In an optional embodiment, one side of the silicone ring is interference-fitted with the annular groove, and the other side abuts against the outer top wall of the inner cover.
[0012] In an optional embodiment, one of the outer sidewall of the inner cover and the inner sidewall of the outer cover is provided with a protrusion, and the other is provided with a groove that engages with the protrusion and extends along the axial direction of the cover.
[0013] In an optional embodiment, the first limiting part is a limiting rib, and the second limiting part is a limiting groove; the number of limiting ribs is at least two, and the at least two limiting ribs are arranged at intervals along the circumference of the cover; the limiting groove corresponds to the limiting rib one by one.
[0014] In an optional embodiment, the first limiting part is a limiting rib, and the second limiting part is a limiting groove; the limiting rib is provided on the inner top wall of the outer cover, and the limiting groove is provided on the outer top wall of the inner cover.
[0015] In an optional embodiment, one side of the limiting groove is inclined outward to form a guide slope, which is used to cause the outer cover to shift upward when the outer cover is not pressed and rotates relative to the inner cover.
[0016] Secondly, this utility model provides a laser pointer, including a main body and a cover as described in any of the foregoing embodiments, wherein the outer side wall of the main body is provided with an external thread that mates with the internal thread.
[0017] In an optional embodiment, the laser pointer also includes a PCB assembly, which has a tactile switch for turning the laser on and off; the main body has a through hole corresponding to the tactile switch.
[0018] In an optional implementation, the laser pointer also includes a button that engages with and extends through a through-hole.
[0019] The beneficial effects of the cover and laser pointer provided in this embodiment of the invention include:
[0020] This invention provides a cover and a laser pointer. The cover includes an inner cover, an outer cover, and an elastic element. The outer cover is fitted around the outer periphery of the inner cover, and the inner and outer covers are rotatably fitted together. The inner wall of the inner cover has an internal thread for engaging with the main body. One of the outer top wall of the inner cover and the inner top wall of the outer cover has a first limiting portion, and the other has a second limiting portion that engages with the first limiting portion. The elastic element is at least partially sandwiched between the inner and outer covers. When the elastic element is compressed, the first and second limiting portions engage; when the elastic element is decompressed, the first and second limiting portions disengage. Therefore, the cover provided by this invention, through the cooperation of the inner cover, outer cover, and elastic element, achieves a child-proof opening function. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the cover in the pressed state provided in this embodiment;
[0023] Figure 2 This is a schematic diagram of the structure of the cover not being pressed in this embodiment;
[0024] Figure 3 This is a schematic diagram illustrating the fit between the limiting rib and the limiting groove provided in this embodiment;
[0025] Figure 4 Provided for this embodiment Figure 2 Schematic diagram of the structure at point A;
[0026] Figure 5 This is a schematic diagram of the inner cover provided in this embodiment;
[0027] Figure 6 This is a schematic diagram of the structure of the laser pointer provided in this embodiment.
[0028] Icons: 1-Laser pointer; 10-Cover; 30-Main body; 31-External thread; 50-PCB assembly; 51-Tact switch; 70-Button; 100-Inner cover; 110-Internal thread; 130-Limiting groove; 131-Guide slope; 150-Protrusion; 300-Outer cover; 310-Limiting rib; 330-Slide groove; 500-Elastic element. Detailed Implementation
[0029] The existing laser pointers have overly simple opening mechanisms, posing a safety hazard that children can easily turn them on, as well as the risk of eye injury to unrelated people in the vicinity.
[0030] To address the aforementioned issues, this utility model provides a cover and a laser pointer. By pressing the cover, the inner and outer covers are linked, and a rotating motion is used to lock and unlock the device. This effectively prevents children from accidentally operating the device, reduces the risk of eye injury to unrelated persons, and improves product safety.
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0034] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0035] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0036] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0037] The following describes in detail the overall structure, working principle, and technical effects of the cover and laser pointer provided by this utility model through embodiments and in conjunction with the accompanying drawings.
[0038] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the cover 10 in the pressed state provided in this embodiment. Figure 2 This is a schematic diagram of the structure of the cover 10 in this embodiment when it is not in a pressed state. Figure 3 This is a schematic diagram illustrating the cooperation between the first limiting part and the second limiting part provided in this embodiment. This utility model provides a cover 10, applied to a laser pointer 1. Pressing the cover 10 causes the inner cover 100 and the outer cover 300 to form a linkage, and then a rotating action is used to lock and unlock, effectively preventing accidental operation by children, reducing the risk of eye injury to unrelated personnel, and improving product safety.
[0039] The cover 10 includes an inner cover 100, an outer cover 300, and an elastic element 500. The outer cover 300 is fitted around the outer periphery of the inner cover 100, and the inner cover 100 and outer cover 300 are rotatably fitted together. The inner wall of the inner cover 100 has an internal thread 110 for engaging with the main body 30. One of the outer top wall of the inner cover 100 and the inner top wall of the outer cover 300 has a first limiting portion, and the other has a second limiting portion that engages with the first limiting portion. The elastic element 500 is at least partially sandwiched between the inner cover 100 and the outer cover 300. When the elastic element 500 is compressed, the first and second limiting portions engage; when the elastic element 500 is decompressed, the first and second limiting portions disengage.
[0040] Based on the above configuration, the inner cover 100 and the outer cover 300 rotate together, and the first limiting part and the second limiting part are made to contact and engage through the elastic element 500, thereby blocking the outer cover 300 from driving the inner cover 100 under normal conditions. When the user presses the outer cover 300, the elastic element 500 is compressed, and the first limiting part and the second limiting part cooperate to form a linkage. At this time, rotating the outer cover 300 can drive the inner cover 100, realizing the locking or unlocking function with the main body 30. Therefore, the cover 10 provided by this utility model realizes the child-proof opening function through the cooperation of the inner cover 100, the outer cover 300, and the elastic element 500.
[0041] In some alternative embodiments, because silicone material has good elasticity and wear resistance, it can maintain stable performance during repeated pressing and recovery. The inner top surface of the outer cover 300 is provided with an annular groove, and the elastic element 500 is a silicone ring that mates with the annular groove. In other embodiments, the elastic element 500 may also be a spring or other elastic material.
[0042] Furthermore, one side of the silicone ring is interference-fitted with the annular groove, while the other side abuts against the outer top wall of the inner cover 100. It is easy to understand that the interference fit between the silicone ring and the annular groove ensures that it will not easily loosen or fall off after assembly, ensuring the positional and functional stability of the elastic element 500.
[0043] To prevent the inner cover 100 from completely detaching from the outer cover 300 due to excessive elasticity of the elastic element 500, and to ensure that the two remain connected at all times, one of the outer sidewall of the inner cover 100 and the inner sidewall of the outer cover 300 is provided with a protrusion 150, and the other is provided with a groove 330 that mates with the protrusion 150 and extends axially along the cover body 10. (See also...) Figure 4 , Figure 4 Provided for this embodiment Figure 2 A schematic diagram of the structure at point A. In this embodiment, the outer side wall of the inner cover 100 is provided with the protrusion 150, while the inner side wall of the outer cover 300 is provided with the groove 330.
[0044] Please refer to it again. Figure 3 In some embodiments, the first limiting part is a limiting rib 310, and the second limiting part is a limiting groove 130. To optimize force distribution during the rotation of the cover 10, the number of limiting ribs 310 is at least two, and the at least two limiting ribs 310 are spaced apart along the circumference of the cover 10. The limiting grooves 130 correspond one-to-one with the limiting ribs 310. It can be understood that the cooperation of multiple limiting ribs 310 and limiting grooves 130 forms multiple support points, which are evenly distributed in the circumference of the cover 10. Therefore, during pressing or rotation, the above design can more evenly transmit the force of the outer cover 300 to the inner cover 100.
[0045] When the first limiting part is a limiting rib 310 and the second limiting part is a limiting groove 130, since the outer cover 300 is the part that directly bears the external operating force, in order to enhance its structural strength, such as Figure 3 As shown, the limiting rib 310 is provided on the inner top wall of the outer cover 300, and the limiting groove 130 is provided on the outer top wall of the inner cover 100. In some other embodiments, the limiting rib 310 is provided on the inner top wall of the outer cover 300, and the limiting groove 130 is provided on the outer top wall of the inner cover 100, which will not be described in detail here.
[0046] Further, please refer to Figure 5 To ensure that the limiting rib 310 cannot easily fall into the limiting groove 130 when not pressed, one side wall of the limiting groove 130 is inclined outward to form a guide slope 131. The guide slope 131 is used to offset the outer cover 300 upward when it is not pressed and is rotating relative to the inner cover 100. Specifically, when the user attempts to rotate the outer cover 300 in the unpressed state, the guide slope 131 will contact the limiting rib 310 of the outer cover 300 and apply an upward force, causing the outer cover 300 to offset slightly upward. At this time, the outer cover 300 can only rotate freely. In addition, it should be noted that when the outer shell is pressed, the guide slope 131 also has the beneficial effect of guiding the misaligned limiting rib 310 into the limiting groove 130, which will not be elaborated here.
[0047] in addition, Figure 6 For a schematic diagram of the laser pointer 1 provided in this embodiment, please refer to [link / reference]. Figure 6 This utility model also provides a laser pointer 1, which includes a main body 30 and a cover 10 as described in the previous embodiment. Furthermore, the outer wall of the main body 30 is provided with an external thread 31 that mates with the internal thread 110. Because the laser pointer 1 includes the cover 10, it can also lock and unlock by linking the inner cover 100 and the outer cover 300 together and then rotating them. Based on this, the laser pointer 1 effectively prevents accidental operation by children, reduces the risk of eye injury to unrelated persons, and improves product safety. Further details are omitted here.
[0048] Furthermore, the laser pointer 1 also includes a PCB assembly 50, which has a tactile switch 51 for turning the laser on and off, and the main body 30 has a through hole corresponding to the tactile switch 51. Therefore, the user can press the tactile switch 51 by passing their finger through the through hole, thereby turning the laser on or off.
[0049] To enhance the user experience, the laser pointer 1 also includes a button 70, which engages with and protrudes from a through hole. By implementing this switch, on the one hand, the user can control the tactile switch 51 to turn the laser on or off via the button 70; on the other hand, it also prevents damage to the tactile switch 51 caused by external factors (such as dust, moisture, or accidental touches), thus improving the product's reliability and safety.
[0050] Taking the laser pointer 1 provided by this utility model as an example, its unlocking and locking principles are as follows:
[0051] In the unpressed state, the elasticity of the silicone ring applies an upward force to the outer cover 300, maintaining a certain gap between the limiting rib 310 of the outer cover 300 and the limiting groove 130 of the inner cover 100. Simultaneously, the guide slope 131 formed by the outward inclination of one side of the limiting groove 130 contacts the limiting rib 310 and applies an upward force, causing the outer cover 300 to slightly shift upwards. Therefore, in the unpressed state, the limiting rib 310 cannot easily fall into the limiting groove 130, and the outer cover 300 can only rotate freely, unable to rotate the inner cover 100 together. In the pressed state, the outer cover 300 moves downwards, compressing the silicone ring. At this time, the guide slope 131 guides the corresponding limiting rib 310 to accurately slide into the limiting groove 130. Then, rotating the outer cover 300 will rotate the inner cover 100 together, thereby achieving the threaded locking or unlocking function between the cover 10 and the main body 30.
[0052] In summary, this utility model provides a cover 10 and a laser pointer 1. The cover 10 includes an inner cover 100, an outer cover 300, and an elastic element 500. The outer cover 300 is sleeved on the outer periphery of the inner cover 100, and the inner cover 100 and outer cover 300 are rotatably fitted together. The inner sidewall of the inner cover 100 has an internal thread 110 for engaging with the main body 30. One of the outer top wall of the inner cover 100 and the inner top wall of the outer cover 300 has a first limiting portion, and the other has a second limiting portion that engages with the first limiting portion. The elastic element 500 is at least partially sandwiched between the inner cover 100 and the outer cover 300. When the elastic element 500 is compressed, the first and second limiting portions engage; when the elastic element 500 is decompressed, the first and second limiting portions disengage. In other words, the inner cover 100 and the outer cover 300 rotate together, and the first limiting part and the second limiting part are made to contact and engage through the elastic element 500, thereby blocking the driving effect of the outer cover 300 on the inner cover 100 under normal conditions. When the user presses the outer cover 300, the elastic element 500 is compressed, and the first limiting part and the second limiting part cooperate to form a linkage. At this time, rotating the outer cover 300 can drive the inner cover 100, realizing the locking or unlocking function with the main body 30. Therefore, the cover 10 provided by this utility model realizes the function of preventing children from opening it through the cooperation of the inner cover 100, the outer cover 300, and the elastic element 500.
[0053] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.
Claims
1. A cover, characterized in that, Includes an inner cover (100), an outer cover (300), and an elastic element (500); The outer cover (300) is sleeved on the outer periphery of the inner cover (100), the inner cover (100) and the outer cover (300) are rotatably engaged, and the inner sidewall of the inner cover (100) is provided with an internal thread (110) for engaging with the main body (30); One of the outer top wall of the inner cover (100) and the inner top wall of the outer cover (300) is provided with a first limiting part, and the other is provided with a second limiting part that can cooperate with the first limiting part; The elastic element (500) is at least partially sandwiched between the inner cover (100) and the outer cover (300). When the elastic element (500) is compressed, the first limiting part and the second limiting part cooperate. When the elastic element (500) is decompressed, the first limiting part and the second limiting part disengage.
2. The cover according to claim 1, characterized in that, The inner top surface of the outer cover (300) is provided with an annular groove, and the elastic element (500) is a silicone ring that mates with the annular groove.
3. The cover according to claim 2, characterized in that, One side of the silicone ring is interference-fitted with the annular groove, and the other side abuts against the outer top wall of the inner cover (100).
4. The cover according to claim 1, characterized in that, One of the outer sidewall of the inner cover (100) and the inner sidewall of the outer cover (300) is provided with a protrusion (150), and the other is provided with a groove (330) that engages with the protrusion (150) and extends along the axial direction of the cover body (10).
5. The cover according to claim 1, characterized in that, The first limiting part is a limiting rib (310), and the second limiting part is a limiting groove (130); the number of the limiting ribs (310) is at least two, and the at least two limiting ribs (310) are arranged at intervals along the circumference of the cover (10); the limiting groove (130) corresponds one-to-one with the limiting ribs (310).
6. The cover according to claim 1, characterized in that, The first limiting part is a limiting rib (310), and the second limiting part is a limiting groove (130); the limiting rib (310) is provided on the inner top wall of the outer cover (300), and the limiting groove (130) is provided on the outer top wall of the inner cover (100).
7. The cover according to claim 6, characterized in that, One side of the limiting groove (130) is inclined outward to form a guide slope (131). The guide slope (131) is used to cause the outer cover (300) to shift upward when the outer cover (300) is not pressed and rotates relative to the inner cover (100).
8. A laser pointer, characterized in that, It includes a main body (30) and a cover (10) as described in any one of claims 1 to 7, wherein the outer side wall of the main body (30) is provided with an external thread (31) that mates with the internal thread (110).
9. The laser pointer according to claim 8, characterized in that, The laser pointer (1) also includes a PCB assembly (50), which is provided with a tactile switch (51) for turning the laser on and off; the main body (30) has a through hole corresponding to the tactile switch (51).
10. The laser pointer according to claim 9, characterized in that, The laser pointer (1) also includes a button (70), which engages with the through hole and extends through the through hole.