Ball head device with rotation limiting function
By introducing the ball head limit slot and positioning column into the ball head device, combined with the spring and positioning snap, the problem of the lack of rotation angle limit in the traditional ball head device is solved, and a stable and flexible rotation function is achieved, avoiding entanglement. Line accidents and visual fatigue extend service life.
Patent Information
- Application Number
- CN202420982270.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-08
AI Technical Summary
Traditional ball head devices lack rotation angle restrictions, causing cable tangles, affecting the user experience and potentially causing product damage.
A ball head device with a ball head limiting groove and a positioning column is designed. Through the cooperation between the ball head limiting groove and the positioning column, the rotation angle is limited, excessive rotation is prevented, and stable limiting is achieved through springs and positioning snaps. Function.
It effectively prevents unsafe factors and wire wrapping accidents caused by excessive rotation of the desk lamp, improves the stability and flexibility of use, meets different lighting needs, reduces visual fatigue, and extends the service life of the desk lamp.
Smart Images
Figure CN222296718U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ball heads, in particular to a ball head device with rotation limiting function. Background Art
[0002] The ball head device is a common mechanical structure, which consists of a spherical head and a matching base. The ball head can rotate freely in the base, thus achieving multi-angle and multi-directional rotation. In table lamps, the ball head device is usually used to connect the lamp pole and the lamp base, so that the lamp pole can be flexibly rotated to meet the user's lighting needs at different angles.
[0003] There is a problem with the traditional ball head device during use, that is, there is no rotation angle limit, and the cable will be tangled when turning. Due to the defect of no rotation angle limit in the design, when the user turns the lamp head, the cable will rotate with the lamp head without limit, causing the cable to be tangled and damaged, which not only affects the user experience, but may even damage the product. Utility Model Content
[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a ball head device with rotation limit.
[0005] The utility model adopts the following technical solution to solve the technical problem: a ball head device with rotation limit, comprising a ball head, the ball head comprising a hemispherical shell and a ball head limit groove, the ball head limit groove is arranged at the bottom of the ball head, the upper end of the ball head is connected to a fixing sleeve, the ball head limit groove is connected to a positioning column, the positioning column is connected to a positioning sleeve, the positioning sleeve is connected to a spring, the spring is connected to a fixing seat, the positioning sleeve is provided with a positioning buckle, the fixing seat is provided with a positioning groove, and the positioning buckle is connected to the positioning groove.
[0006] As a further improvement of the utility model: the positioning column adopts a screw, the positioning buckle is located on the top outer side of the positioning sleeve, the positioning buckle is provided with rounded corners around, and the number of the positioning buckles is three.
[0007] As a further improvement of the utility model: the top end of the ball head is connected to one end of the ball column, the other end of the ball column is connected to the lamp pole of the desk lamp, and the ball column is limited in swinging position by the top edge of the fixing sleeve.
[0008] As a further improvement of the utility model: the lamp pole includes a first lamp pole and a second lamp pole, the first lamp pole and the second lamp pole are connected via a first rotating shaft, and the second lamp pole and the base are connected via a second rotating shaft.
[0009] As a further improvement of the present invention: the second rotating shaft is fixedly connected to the desk lamp base by bolts, and anti-slip strips are arranged around the bottom of the base.
[0010] As a further improvement of the utility model: the ball head limiting groove limits the swing angle of the hemispherical shell.
[0011] As a further improvement of the present invention: the hemispherical shell is made of stainless steel or aluminum alloy, and the surface of the hemispherical shell is polished.
[0012] As a further improvement of the utility model: the fixing seat is fixedly connected to the lamp head of the desk lamp, and the lamp head is connected to the power supply device through an electric wire.
[0013] As a further improvement of the utility model: the fixing seat is fixed on the outer shell, and the inner space of the fixing seat and the positioning sleeve compresses the spring.
[0014] As a further improvement of the present invention: the left and right rotation angles of the ball head are ≤120° respectively, the appearance surface of the hemispherical shell is intact and has no defects, and the appearance surface of the ball head remains intact and has no defects when swinging or rotating at any angle.
[0015] As a further improvement of the utility model: the cooperation between the ball head limiting groove and the positioning column is used to limit the rotation angle, which can prevent the table lamp from damaging the cable due to unlimited excessive rotation.
[0016] As a further improvement of the utility model: the ball head is generally made of metal or high-strength plastic to ensure sufficient support and wear resistance. Metals such as stainless steel or aluminum alloy are widely used in high-end desk lamp products due to their good strength and corrosion resistance; while plastics are more popular in the mid- and low-end markets due to their lightness and cost advantages.
[0017] As a further improvement of the present invention, the positioning column limits the maximum rotation range of the lamp holder, thereby avoiding the risk of damage caused by excessive rotation.
[0018] Compared with the prior art, the beneficial effects of the utility model are:
[0019] The ball head limit groove of the utility model is located at the bottom of the ball head, and the appearance of the ball head is intact and has no defects. The ball head limit groove cooperates with the positioning column of the positioning sleeve to realize the limit function of left and right rotation and up and down swinging. The positioning sleeve adds a positioning buckle, and the fixing seat adds a positioning groove. After cooperation, the direction of the positioning sleeve is fixed, and the illumination angle of the desk lamp can be freely adjusted according to the needs of the user. Whether it is reading, writing or doing handicrafts, the most suitable angle can be found. This flexible illumination method not only avoids visual fatigue caused by direct light exposure to the eyes, but also allows the light to better illuminate the work area, improve work and study efficiency, and can withstand long-term continuous use, and can ensure the flexibility, stability and appearance integrity of rotation. The ball head device also has a good rotation limit function. By setting a certain rotation angle limit, the unsafe factors caused by excessive rotation of the desk lamp can be prevented. At the same time, this design also makes the desk lamp more stable during use, avoiding accidents of desk lamp entanglement caused by misoperation or collision. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the ball head structure of the utility model;
[0021] Figure 2 For this utility model Figure 1 A schematic cross-sectional structure diagram of ;
[0022] Figure 3 This is a schematic diagram of the positioning sleeve and base structure of the utility model;
[0023] Figure 4 It is a schematic diagram of the rotating structure on the lamp head of the utility model;
[0024] Figure 5 This is a schematic diagram of the downward rotating structure of the lamp head of the utility model;
[0025] Figure 6 This is a schematic diagram of the maximum rotation angle structure of the lamp head of the utility model;
[0026] In the figure: 1. hemispherical shell; 2. ball head limit groove; 3. fixing sleeve; 4. positioning column; 5. positioning sleeve; 6. spring; 7. fixing seat; 8. positioning buckle; 9. positioning groove; 10. ball column; 11. first lamp pole; 12. second lamp pole; 13. first rotation axis; 14. base; 15. second rotation axis; 16. anti-slip strip; 17. lamp head; 18. wire; 19. shell. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0030] The utility model is further described in conjunction with the accompanying drawings and embodiments: Figure 1-6 A ball head device with rotation limit shown in the figure includes a ball head, the ball head includes a hemispherical shell 1 and a ball head limit groove 2, the ball head limit groove 2 is arranged at the bottom of the ball head, the upper end of the ball head is connected to a fixing sleeve 3, the ball head limit groove 2 is connected to a positioning column 4, the positioning column 4 is connected to a positioning sleeve 5, the positioning sleeve 5 is connected to a spring 6, the spring 6 is connected to a fixing seat 7, the positioning sleeve 5 is provided with a positioning buckle 8, the fixing seat 7 is provided with a positioning groove 9, and the positioning buckle 8 is connected to the positioning groove 9.
[0031] As a preferred embodiment, the positioning column 4 is a screw, the positioning buckle 8 is located on the top outside of the positioning sleeve 5, and the positioning buckle 8 is provided with rounded corners around it. The number of the positioning buckles 8 is three.
[0032] As a preferred embodiment, the top end of the ball head is connected to one end of the ball column 10 , and the other end of the ball column 10 is connected to the lamp pole of the desk lamp. The ball column 10 is limited in swing position by the top edge of the fixing sleeve 3 .
[0033] As a preferred embodiment, the lamp pole includes a first lamp pole 11 and a second lamp pole 12 , the first lamp pole 11 and the second lamp pole 12 are connected via a first rotating shaft 13 , and the second lamp pole 12 and the base 14 are connected via a second rotating shaft 15 .
[0034] As a preferred embodiment, the second rotating shaft 15 is fixedly connected to the base 14 by bolts, and anti-slip strips 16 are arranged around the bottom of the base 14 .
[0035] As a preferred embodiment, the ball head limiting groove 2 limits the swing angle of the hemispherical shell 1.
[0036] As a preferred embodiment, the hemispherical shell 1 is made of stainless steel or aluminum alloy, and the surface of the hemispherical shell 1 is polished.
[0037] As a preferred embodiment, the fixing base 7 is fixedly connected to the lamp head 17 of the desk lamp, and the lamp head 17 is connected to the power supply device through an electric wire 18 .
[0038] As a preferred embodiment, the fixing seat 7 is fixed on the housing 19 , and the inner space of the fixing seat 7 and the positioning sleeve 5 compresses the spring 6 .
[0039] As a preferred embodiment, the left and right rotation angles of the ball head are ≤120° respectively, and the appearance surface of the hemispherical shell 1 is intact and has no defects. The appearance surface of the ball head remains intact and has no defects when swinging or rotating at any angle.
[0040] The working principle of this utility model:
[0041] The top of the ball head of the utility model is connected to a fixing sleeve, the bottom of the ball head is connected to a positioning sleeve, a spring is placed at the bottom of the positioning sleeve, and the fixing seat compresses the spring. The spring applies a constant supporting force to the positioning sleeve, increasing the friction between the positioning sleeve and the ball head to meet the positioning function of the ball head swinging and rotating at any angle. The left and right rotation angles of the ball head are respectively ≤120°. After the left and right sides of the ball head limit groove are rotated, they are turned to the positioning column to realize the rotation limit. The positioning buckle of the fixing sleeve is fixed with the positioning groove direction of the fixing seat.
[0042] Implementation case 1:
[0043] like Figure 1-6A ball head device with rotation limit shown in the figure includes a ball head, the ball head includes a hemispherical shell 1 and a ball head limit groove 2, the ball head limit groove 2 is arranged at the bottom of the ball head, the upper end of the ball head is connected to a fixing sleeve 3, the ball head limit groove 2 is connected to a positioning column 4, the positioning column 4 is connected to a positioning sleeve 5, the positioning sleeve 5 is connected to a spring 6, the spring 6 is connected to a fixing seat 7, the positioning sleeve 5 is provided with a positioning buckle 8, the fixing seat 7 is provided with a positioning groove 9, and the positioning buckle 8 is connected to the positioning groove 9.
[0044] The positioning column 4 adopts a screw, the positioning buckle 8 is located on the top outside of the positioning sleeve 5, the positioning buckle 8 is provided with rounded corners around, the number of the positioning buckles 8 is three, the top of the ball head is connected to one end of the ball column 10, the other end of the ball column 10 is connected to the lamp pole of the desk lamp, the ball column 10 is limited by the top edge of the fixing sleeve 3 to limit the swing limit, the lamp pole includes a first lamp pole 11 and a second lamp pole 12, the first lamp pole 11 and the second lamp pole 12 are connected by a first rotating shaft 13, the second lamp pole 12 and the base 14 are connected by a second rotating shaft 15, the second rotating shaft 15 and the base 14 are fixedly connected by bolts, the base 1 4 is provided with anti-slip strips 16 around the bottom, the ball head limiting groove 2 limits the swing angle of the hemispherical shell 1, the hemispherical shell 1 is made of stainless steel and aluminum alloy, the surface of the hemispherical shell 1 is polished, the fixing seat 7 is fixedly connected to the lamp head 17 of the table lamp, the lamp head 17 is connected to the power supply device through a wire 18, the fixing seat 7 is fixed on the shell 19, the fixing seat 7 and the internal space of the positioning sleeve 5 compress the spring 6, the left and right rotation angles of the ball head are ≤120° respectively, the appearance surface of the hemispherical shell 1 is intact and defect-free, and the appearance surface of the ball head remains intact and defect-free when swinging or rotating at any angle.
[0045] The core component of the ball head device in this embodiment is a spherical adapter, which is fixedly connected to the lamp head on the top and connected to the lamp pole or lamp holder on the bottom. The hemispherical shell is provided with a ball head limit groove and a positioning column structure to achieve smooth rotation and effective limit. When the user needs to adjust the lighting direction, he only needs to push the lamp head lightly so that it can rotate freely along the predetermined axis and angle range with the support of the ball head device to prevent it from rotating on its own without external force. At the same time, the user can release the limit and readjust the angle of the lamp pole through simple operation.
[0046] The design of this ball head device fully considers the user's usage habits and usage environment. For example, for users who need to read or write for a long time, they may need to focus the light of the desk lamp on books or documents. At this time, they can use the ball head to fix the position of the lamp head to ensure that the light always shines where it needs to be illuminated. For users who need a wide range of lighting, such as when putting on makeup or doing handicrafts, they can release the limit and freely adjust the angle of the lamp pole to make the light shine on a wider range.
[0047] Users can easily direct the light to any angle where lighting is required, whether it is necessary to concentrate the light on the pages of a book when reading, or to illuminate the entire desktop when working, this ball head device can respond quickly to meet different usage scenarios. What is more worth mentioning is that the rotation limit design in the ball head device ensures the stability of the desk lamp during use. Even at the maximum angle, the desk lamp can be kept from shaking, avoiding safety hazards caused by unstable center of gravity. At the same time, this stable structure also greatly extends the service life of the desk lamp and reduces wear caused by frequent adjustments.
[0048] Implementation case 2:
[0049] In this embodiment, Figure 1-6 The ball head device with rotation limit shown in the figure has the same technical means as the ball head device in the first implementation case.
[0050] In this embodiment, the fixed sleeve 3 plays a swing limit function for the ball head, and the ball column 10 drives the hemispherical shell 1 to rotate. When the ball column 10 swings to the edge of the fixed sleeve 3, the ball head limit groove 2 swings to the positioning column 4, thereby realizing the swing limit. The spring 6 applies a constant supporting force to the positioning sleeve 5, increasing the friction between the positioning sleeve 5 and the fixed sleeve 3 and the ball head, so that it can be positioned after proper swinging. The fixed seat 7 is fixed on the shell 19, and then the spring 6 is compressed. The spring 6 then applies a supporting force to the positioning sleeve 5. After the left and right sides of the ball head limit groove 2 rotate, it turns to the positioning column 4 to realize the rotation limit. The positioning buckle 8 of the fixed sleeve 3 is fixed in the direction of the positioning groove 9 of the fixed seat 7, and finally the rotation and swing limit of the positioning column 4 and the ball head are realized. The rotation limit plus the swing limit realizes the large angle limit of the ball head.
[0051] Implementation case three:
[0052] In this embodiment, Figure 1-6 The ball head device with rotation limit shown in the figure has the same technical means as the ball head device in the first implementation case.
[0053] The ball head device in this embodiment also has excellent durability and stability. Since the contact area between the ball head and the fixed sleeve 3 is large, there will be no wear and looseness even in the case of frequent rotation and adjustment. At the same time, the material and design of the ball head limit groove 2 also ensure its service life and reliability. This ball head device used for rotation limiting on the table lamp not only solves the problems of the traditional ball head device and improves the convenience of use of the table lamp, but also enriches the functionality and flexibility of the table lamp, bringing users a better lighting experience. In addition to functional innovation, simple and smooth lines, and elegant color matching make it not only a practical tool, but also a fashionable element of modern home decoration. Whether it is placed on a desk, office desk or bedside table, it can blend harmoniously with the surrounding environment and add a warm atmosphere.
[0054] The main functions of this utility model:
[0055] As an important component of the desk lamp, the ball head device of the utility model provides great convenience for the use of the desk lamp with its unique design and practical functions. It can not only adjust the irradiation angle to meet different lighting needs, but also has the function of rotation limit, which ensures the safety of use. The ball head limit groove cooperates with the positioning column of the positioning sleeve to realize the limit function of left and right rotation and up and down swinging. The positioning sleeve adds a positioning buckle, and the fixing seat adds a positioning groove. After cooperation, the direction of the positioning sleeve is fixed. The irradiation angle of the desk lamp can be freely adjusted according to the needs of the user. Whether it is reading, writing or doing handicrafts, the most suitable angle can be found. This flexible irradiation method not only avoids visual fatigue caused by direct light exposure to the eyes, but also enables the light to better illuminate the work area, improve work and study efficiency, and can withstand long-term continuous use, and can ensure the sensitivity and stability of rotation. The ball head device also has a good rotation limit function. By setting a certain rotation angle limit, the unsafe factors caused by excessive rotation of the desk lamp can be prevented. At the same time, this design also makes the desk lamp more stable during use, avoiding accidents of desk lamp entanglement caused by misoperation or collision.
[0056] In summary, after reading the utility model document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the utility model without creative mental labor, which all fall within the scope of protection of the utility model.
[0057] In the description of the present utility model, it needs to be understood that the orientations or positional relationships indicated by terms such as "upper end face", "lower end face", "top", "bottom", "left" and "right" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present utility model. Therefore, they cannot be understood as limitations on the actual use direction of the present utility model.
[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and should all be included in the scope of the claims and specification of the present invention.
Claims
1. A ball head device with rotation limit, characterized in that: It includes a ball head, which includes a hemispherical shell and a ball head limiting groove, the ball head limiting groove is arranged at the bottom of the ball head, the upper end of the ball head is connected to the fixing sleeve, the ball head limiting groove is connected to the positioning column, the positioning column is connected to the positioning sleeve, the positioning sleeve is connected to a spring, the spring is connected to a fixing seat, the positioning sleeve is provided with a positioning buckle, the fixing seat is provided with a positioning groove, and the positioning buckle is connected to the positioning groove.
2. A ball head device with rotation limit according to claim 1, characterized in that: The positioning column adopts a screw, the positioning buckle is located on the top outer side of the positioning sleeve, the positioning buckle is provided with rounded corners around, and the number of the positioning buckles is three.
3. A ball head device with rotation limit according to claim 1, characterized in that: The top end of the ball head is connected to one end of the ball column, and the other end of the ball column is connected to the lamp pole of the desk lamp. The ball column is limited in swinging position by the top edge of the fixing sleeve.
4. A ball head device with rotation limit according to claim 3, characterized in that: The lamp pole comprises a first lamp pole and a second lamp pole, the first lamp pole and the second lamp pole are connected via a first rotating shaft, and the second lamp pole and the base are connected via a second rotating shaft.
5. A ball head device with rotation limit according to claim 4, characterized in that: The second rotating shaft is fixedly connected to the desk lamp base by bolts, and anti-slip strips are arranged around the bottom of the base.
6. The ball head device with rotation limit according to claim 1, characterized in that: The ball head limiting groove limits the swing angle of the hemispherical shell.
7. The ball head device with rotation limit according to claim 1, characterized in that: The surface of the hemispherical shell is polished.
8. The ball head device with rotation limit according to claim 1, characterized in that: The fixing seat is fixedly connected to the lamp head of the desk lamp, and the lamp head is connected to the power supply device through electric wires.
9. The ball head device with rotation limit according to claim 1, characterized in that: The fixing seat is fixed on the outer shell, and the inner space of the fixing seat and the positioning sleeve compresses the spring.
10. The ball head device with rotation limit according to claim 1, characterized in that: The left and right rotation angles of the ball head are ≤120° respectively, the appearance surface of the hemispherical shell is complete and has no defects, and the appearance surface of the ball head remains complete and has no defects when swinging or rotating at any angle.