Structure capable of finely adjusting longitudinal spacing

Abstract

The utility model discloses a structure capable of finely adjusting longitudinal spacing, which comprises a main body structure, which comprises a thread part, a limiting part and a screwing part, which are integrally connected in sequence; the locatable knob is connected to the screwing part; the damping spring is connected to the threaded part, and one end of the damping spring is connected with the limiting part; the plastic stop block is connected to the threaded part; the blocking piece is connected to the threaded part, and the blocking piece is arranged on the side, away from the damping spring, of the plastic check block; and a plurality of groups of pull ropes. According to the structure capable of finely adjusting the longitudinal spacing, the threaded part, the limiting part, the positionable knob, the damping spring and other parts are adopted, the overall design is exquisite, machining and production are easy, the main body structure of the structure can be machined and completed through a conventional mold, it is not needed to re-customize the mold for each application scene, and the production cost and research and development investment are remarkably reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight membranes, in particular to a structure capable of fine-tuning longitudinal spacing. Background Art

[0002] In recent years, with the development of industrial manufacturing, precision instruments, and backlight diaphragms, the demand for fine-tuning between structural components has continued to increase. During the installation of backlight diaphragms, in order to achieve higher precision requirements, it is often necessary to fine-tune the longitudinal spacing between the diaphragms to ensure that the overall performance of the product meets the design requirements. Currently, there are some adjustable spacing mechanisms on the market that achieve structural fine-tuning through manual or automatic adjustment, and are widely used in display devices, precision optical instruments and other fields.

[0003] However, existing technologies often suffer from several drawbacks when implementing fine-tuning functions. First, many existing devices require redesigning molds or machining structural components to accommodate varying fine-tuning requirements, which not only increases R&D costs but also limits versatility. Second, some existing mechanisms lack fine-tuning accuracy and stability, prone to performance degradation after repeated operation or repeated use. Finally, due to complex designs or demanding processing requirements, existing technologies have high manufacturing and maintenance costs, making them unsuitable for large-scale application.

[0004] Therefore, there is an urgent need for a fine-tunable longitudinal spacing structure that is simple to process, low in cost, high in precision and reusable in structure to address the shortcomings of existing technologies and meet the needs of multi-field usage environments. Utility Model Content

[0005] The purpose of the present invention is to provide a structure capable of fine-tuning the longitudinal spacing, so as to solve the problems existing in the existing backlight film fine-tuning technology proposed in the above background art.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a structure capable of fine-tuning longitudinal spacing, comprising:

[0007] The main structure includes a threaded portion, a limiting portion, and a screw-on portion, wherein the threaded portion, the limiting portion, and the screw-on portion are integrally connected in sequence;

[0008] A positionable knob connected to the rotary portion;

[0009] a damping spring connected to the threaded portion, one end of the damping spring being connected to the limiting portion;

[0010] a plastic stopper connected to the threaded portion;

[0011] a blocking piece connected to the threaded portion, the blocking piece being arranged on a side of the plastic block away from the damping spring;

[0012] Several groups of pull ropes 6 have one end connected to the blocking piece and the other end fixedly connected to the positionable knob. The pull ropes 6 are passed through the inner side of the plastic block, the inner side of the damping spring and the inner side of the limiting portion.

[0013] Preferably, the plastic stopper comprises:

[0014] an annular intermediate piece, sleeved on the outer side of the threaded portion;

[0015] A plurality of groups of oblique abutments are integrally connected to the outer surface of the annular middle piece in a regular annular array, and the oblique abutments are connected to the annular middle piece at an inclined angle.

[0016] Preferably, the baffle is provided with a plurality of groups of lead holes in a regular annular array, and the lead holes include:

[0017] A first hole portion is provided on a side of the blocking piece away from the plastic block;

[0018] The second hole portion is arranged on a side of the blocking piece close to the plastic block. The second hole portion is connected to the first hole portion, and the inner diameter of the second hole portion is smaller than the inner diameter of the first hole portion.

[0019] Preferably, one end of the pull rope 6 is fixedly connected to a limiting plate, the limiting plate is connected to the first hole portion, and the diameter of the limiting plate is greater than the inner diameter of the second hole portion.

[0020] Preferably, the damping spring, the annular intermediate plate and the limiting portion are all provided with through holes for the pull rope 6 to pass through, and the positionable knob is rotated to allow the pull rope 6 to pull the limiting plate.

[0021] Preferably, the baffle is an annular frustum structure.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1) The fine-tunable longitudinal spacing structure of the present application utilizes components such as a threaded portion, a stopper, a positionable knob, and a damping spring. The overall design is sophisticated and easy to process and produce. The main structure can be completed using conventional mold processing, eliminating the need to customize molds for each application scenario, significantly reducing production costs and R&D investment.

[0024] 2) The present application utilizes a positionable knob design to achieve flexible fine-tuning and resetting operations, and is reusable in different usage scenarios, greatly improving its applicability and cost-effectiveness. Whether it is adjusting the spacing of the backlight film or locking the structure in a specific environment, the present application can be easily adjusted to meet various needs, reducing resource waste.

[0025] 3) This application benefits from the coordinated work of the damping spring and the plastic stopper, enabling delicate spacing adjustments and avoiding operational difficulties caused by structural rigidity. Furthermore, the design of the positionable knob allows users to easily adjust and lock manually without the need for complex tools, significantly improving ease of use.

[0026] 4) The present application achieves reversible operation through a positionable knob. The pull cord 6 drives the damping spring and the baffle to achieve precise fine-tuning and has a quick reset function. Due to the reasonable material selection and design, the plastic baffle and the damping spring can maintain stable performance during multiple adjustments, thereby ensuring the durability and long service life of the device.

[0027] 5) This application is not only applicable to backlight diaphragm spacing adjustment, but can also be applied to other scenarios requiring fine-tuning or locking functions. For example, in precision assembly, optical adjustment, or mechanical equipment, this structure can adapt to different usage requirements by changing parameters or components. This flexibility significantly expands the product's application range and enhances its market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 An axonometric drawing of this application;

[0029] Figure 2 Another axonometric drawing of this application;

[0030] Figure 3 This is a schematic diagram of the main structure of this application;

[0031] Figure 4 This is the front view of the application;

[0032] Figure 5 This is a front structural cross-sectional view of the present application;

[0033] Figure 6 This is a schematic diagram of the plastic stopper structure of this application;

[0034] Figure 7 A schematic diagram of the structure of the baffle of this application;

[0035] Figure 8 This is another structural schematic diagram of the baffle of this application;

[0036] Figure 9 This is a schematic diagram of the damping spring structure of this application;

[0037] Figure 10 This is a schematic diagram of the local structure of this application.

[0038] In the picture:

[0039] 1. Positionable knob;

[0040] 2. Main structure; 21. Threaded portion; 22. Position limiting portion; 23. Screw-on portion;

[0041] 3. Damping spring;

[0042] 4. Plastic stopper; 41. Annular intermediate piece; 42. Oblique stopper;

[0043] 5. Blocking piece; 51. Lead hole; 511. First hole portion; 512. Second hole portion;

[0044] 6. Pull rope 6; 61. Limiting piece. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] In the description of the utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0048] See also Figure 1-10 The present invention provides a technical solution: a structure capable of fine-tuning longitudinal spacing, comprising:

[0049] The main structure 2 includes a threaded portion 21, a limiting portion 22, and a screw-on portion 23, wherein the threaded portion 21, the limiting portion 22, and the screw-on portion 23 are integrally connected in sequence;

[0050] The positionable knob 1 is connected to the screw-on portion 23;

[0051] The damping spring 3 is connected to the threaded portion 21, and one end of the damping spring 3 is connected to the limiting portion 22;

[0052] A plastic stopper 4 is connected to the threaded portion 21;

[0053] The blocking piece 5 is connected to the threaded portion 21 and is arranged on a side of the plastic block 4 away from the damping spring 3;

[0054] Several groups of pull ropes 6 have one end connected to the baffle 5 and the other end fixedly connected to the positionable knob 1 . The pull ropes 6 are passed through the inner side of the plastic stopper 4 , the inner side of the damping spring 3 and the inner side of the limiting portion 22 .

[0055] Specifically, the screw-on portion 23 is loosely connected to the inner side of the positionable knob 1, and the inner side of the positionable knob 1 can be stably connected to the screw-on portion 23 through friction. Through the design of the positionable knob 1, flexible fine-tuning and resetting operations can be achieved, and it can be reused in different usage scenarios, which greatly improves its applicability and economy. Whether it is the spacing adjustment of the backlight film or the locking structure in a specific environment, the present application can adapt to various needs through simple adjustments and reduce resource waste.

[0056] Specifically, the design of the positionable knob 1 allows users to easily complete adjustment and locking manually without complex tools, which significantly improves the convenience of use. Reversible operation is achieved through the positionable knob 1, and the pull rope 6 drives the damping spring 3 and the baffle 5 to achieve precise fine-tuning, and at the same time has the function of quick reset. Due to reasonable material selection and design, the plastic block 4 and the damping spring 3 can maintain stable performance during multiple adjustments, thereby ensuring the durability and long service life of the device.

[0057] Specifically, the main structure 2 integrates a threaded portion 21, a limiting portion 22 and a screw-on portion 23. The positionable knob 1 applies force to the pull rope 6, driving other components to work together to ensure that the longitudinal spacing can be precisely fine-tuned. Compared with traditional adjustment methods, this design does not require a complex mechanical transmission mechanism, is easy to operate, has a sophisticated overall design, and is easy to process and produce. Its main structure 2 can be completed through conventional mold processing, and there is no need to customize the mold for each application scenario, which significantly reduces production costs and R&D investment.

[0058] Specifically, the damping spring 3 provides an elastic damping effect during the fine-tuning process, which not only alleviates the impact force during adjustment, but also avoids the instability of the spacing caused by external forces, ensuring the stability and service life of the device. Thanks to the coordinated work of the damping spring 3 and the plastic stopper 4, delicate spacing fine-tuning can be achieved, avoiding operational difficulties caused by structural rigidity.

[0059] Reference Manual Figure 6 In some embodiments, the plastic stopper 4 includes:

[0060] An annular intermediate piece 41 is sleeved on the outer side of the threaded portion 21;

[0061] A plurality of groups of oblique stoppers 42 are connected integrally to the outer surface of the annular intermediate piece 41 in a regular annular array. The oblique stoppers 42 are connected to the annular intermediate piece 41 at an inclined angle.

[0062] Specifically, the plastic stopper 4 is sleeved on the outside of the threaded portion 21 through the annular intermediate piece 41, and several groups of oblique abutments 42 connected at the same time form a stable support structure. When in use, several groups of oblique abutments 42 abut on the workpiece to form a stable support for the workpiece. The inclined design of the oblique abutments 42 not only provides reliable support and fixing effect, but also increases its contact area with the workpiece, further improving the stability and durability of the device. Through the design of the annular intermediate piece 41, the plastic stopper 4 can maintain coordinated movement with other components during the adjustment process, and support multiple adjustment directions to adapt to different usage scenarios. The oblique connection between the oblique abutments 42 and the threaded portion 21 can disperse stress during the adjustment process, reduce adjustment resistance, improve the smoothness of the fine-tuning process, and avoid affecting the operation accuracy due to excessive friction.

[0063] Specifically, the matching design of the plastic stopper 4 and the threaded portion 21 can effectively disperse stress, avoid wear problems caused by direct friction between metal parts, and at the same time reduce manufacturing costs and extend the service life of the overall structure.

[0064] Reference Manual Figure 7-8 In some embodiments, a plurality of groups of lead holes 51 are formed in a regular annular array in the baffle 5, and the lead holes 51 include:

[0065] The first hole portion 511 is provided on a side of the blocking piece 5 away from the plastic block 4;

[0066] The second hole portion 512 is provided on a side of the blocking piece 5 close to the plastic stopper 4 . The second hole portion 512 is connected to the first hole portion 511 , and the inner diameter of the second hole portion 512 is smaller than that of the first hole portion 511 .

[0067] Specifically, the lead hole 51 passing through the baffle 5 is designed in a regular annular array, which ensures that the running path of the pull rope 6 is neat and orderly, avoids the problem of multiple pull ropes 6 crossing or uneven force, thereby improving the overall operating efficiency. In addition, through the segmented design, the manufacturing and assembly process of the lead hole 51 is more convenient, and it is also convenient for later maintenance or replacement of parts, further reducing the cost of use and maintenance.

[0068] Reference Manual Figure 5 And the instruction manual Figure 10 In some embodiments, one end of the drawstring 6 is fixedly connected to a limiting piece 61, which is connected to the first hole portion 511, and the diameter of the limiting piece 61 is greater than the inner diameter of the second hole portion 512. Specifically, the limiting piece 61 is fixedly connected to the drawstring 6, and its diameter is greater than the inner diameter of the second hole portion 512. This ensures that the limiting piece 61 can be firmly stuck in the first hole portion 511, effectively preventing the drawstring 6 from accidentally falling off during use. The difference in inner diameters between the first hole portion 511 and the second hole portion 512 enables the lead hole 51 to accurately position the drawstring 6. The first hole portion 511 provides a larger movable space, while the second hole portion 512 acts as a limiter, preventing the drawstring 6 from excessive displacement or loosening, thereby ensuring the reliability of the structure.

[0069] Reference Manual Figure 3 , Instruction Manual Figure 5-6 And the instruction manual Figure 9-10 In some embodiments, through-holes for the pull cord 6 to pass through are provided in the damping spring 3, the annular intermediate piece 41, and the limiting portion 22. Rotating the positionable knob 1 causes the pull cord 6 to pull the limiting piece 61. Specifically, the through-holes provided in the damping spring 3, the annular intermediate piece 41, and the limiting portion 22 provide a clear path for the movement of the pull cord 6, guiding it to maintain stable operation during the adjustment process and reducing problems such as sticking or friction. Rotating the positionable knob 1 drives the pull cord 6 for adjustment. By rotating the positionable knob 1, the pull cord 6 can drive the limiting piece 61 for fine-tuning. Reverse rotation is also supported for rapid reset, making it flexible and efficient to use.

[0070] Reference Manual Figure 5 And reference manual attached Figure 8 In some embodiments, the baffle 5 has an annular frustum structure. Specifically, one side of the baffle 5's bevel abuts the inner sides of several groups of oblique abutments 42. The bevel of the baffle 5 more closely matches the shape of the contact points of the oblique abutments 42, effectively improving the stability of the connection between the baffle 5 and the oblique abutments 42. This allows for evenly distributing stress when the pull cord 6 is subjected to force, reducing deformation or breakage caused by single-point force. The annular frustum structure also facilitates multi-directional support of the components during adjustment, enhancing the adaptability of the overall structure and further optimizing the smoothness of fine-tuning operations.

[0071] Specifically, the plastic stopper 4 has a certain amount of compression and a certain amount of deformation after being compressed. When in use, the damping spring 3 is in a certain amount of compression, and the stopper 5 is in close contact with the plastic stopper 4 .

[0072] Specifically, when in use, first screw the threaded portion 21 into the threaded mounting hole of the workpiece until the oblique stop 42 of the plastic stop 4 abuts against the surface of the workpiece, so that the limiting piece 61 is connected to the first hole portion 511, and the pull rope 6 is in a straightened state, and the pull rope 6 pulls the binding stop 5. Through the action of the pull rope 6 and the elastic force of the damping spring 3, a stable support for the workpiece is formed by several groups of oblique stops 42. When fine-tuning is required, the operator can drive several groups of pull ropes 6 by rotating the positionable knob 1. After the pull rope 6 is subjected to force, the stop 5 and the plastic stop 4 are then moved toward the side of the damping spring 3 along with the pull rope 6. Then the damping spring 3 is compressed, but because the compression amount of the plastic stop 4 is greater than the compression amount of the damping spring 3, during the movement of the plastic stop 4, the oblique stop 42 is pressed outward by the pressure of the stop 5, resulting in deformation, as shown in the attached figure. Figure 5 As shown, the distance fine-tuning function can be achieved through the plastic stopper 4, and resetting can be achieved by rotating the positionable knob 1 in the opposite direction.

[0073] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A structure capable of fine-tuning longitudinal spacing, characterized in that: include: The main structure (2) comprises a threaded portion (21), a position-limiting portion (22) and a screw-on portion (23), wherein the threaded portion (21), the position-limiting portion (22) and the screw-on portion (23) are integrally connected in sequence; A positionable knob (1) connected to the screw-on portion (23); A damping spring (3) is connected to the threaded portion (21), and one end of the damping spring (3) is connected to the limiting portion (22); A plastic stopper (4) connected to the threaded portion (21); A baffle (5) connected to the threaded portion (21), the baffle (5) being arranged on a side of the plastic block (4) away from the damping spring (3); A plurality of pull ropes 6 (6) are provided, one end of which is connected to the baffle (5) and the other end is fixedly connected to the positionable knob (1). The pull ropes 6 (6) are passed through the inner side of the plastic block (4), the inner side of the damping spring (3) and the inner side of the limiting portion (22).

2. The fine-tunable longitudinal spacing structure according to claim 1, characterized in that: The plastic stopper (4) comprises: an annular intermediate piece (41) sleeved on the outer side of the threaded portion (21); A plurality of groups of oblique abutments (42) are integrally connected to the outer surface of the annular intermediate piece (41) in a regular annular array, and the oblique abutments (42) are connected to the annular intermediate piece (41) at an inclined angle.

3. The fine-tunable longitudinal spacing structure according to claim 2, characterized in that: The baffle (5) is provided with a plurality of groups of lead holes (51) in a regular annular array, and the lead holes (51) include: A first hole portion (511) is provided on a side of the blocking piece (5) away from the plastic blocking block (4); The second hole portion (512) is arranged on a side of the blocking piece (5) close to the plastic block (4), the second hole portion (512) is connected to the first hole portion (511), and the inner diameter length of the second hole portion (512) is smaller than the inner diameter length of the first hole portion (511).

4. The fine-tunable longitudinal spacing structure according to claim 3, characterized in that: One end of the pull rope 6 (6) is fixedly connected to a limiting plate (61), the limiting plate (61) is connected to the first hole portion (511), and the diameter length of the limiting plate (61) is greater than the inner diameter length of the second hole portion (512).

5. The fine-tunable longitudinal spacing structure according to claim 4, characterized in that: The damping spring (3), the annular intermediate plate (41) and the limiting portion (22) are all provided with through holes for the pull rope 6 (6) to pass through, and the positionable knob (1) is rotated to allow the pull rope 6 (6) to pull the limiting plate (61).

6. The fine-tunable longitudinal spacing structure according to claim 2, characterized in that: The baffle (5) is an annular frustum structure.

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