Outdoor display screen back frame clamping jig
By combining the base, positioning slide rail, slider, clamping cylinder and locking cylinder, the problem of the fixture being unable to adapt to the spacing tolerance of the connecting blocks is solved, and the precise clamping and stable locking of the back frame is achieved, which improves the processing quality and production efficiency of the outdoor display screen back frame.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN TWENTY THREE ELECTRONICS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-02
AI Technical Summary
Existing fixtures cannot effectively clamp the spacing tolerances between the connecting blocks of the outdoor display screen back frame at the same time, which makes them prone to loosening during processing, affecting processing accuracy and product quality.
The design employs a combination of a base, positioning slide rail, positioning slider, clamping cylinder, and locking cylinder. Through the sliding of the positioning slider and the locking claw of the locking cylinder, it achieves precise clamping and stable locking of the connecting block, adapting to the tolerance changes in the spacing between the connecting blocks.
Ensure that each connecting block is accurately clamped to prevent the back frame from loosening during processing, thereby improving processing accuracy and stability, reducing scrap rate and equipment wear, and increasing production efficiency.
Smart Images

Figure CN224310142U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of production equipment for outdoor displays, and in particular to a back frame clamping fixture for outdoor displays. Background Technology
[0002] Outdoor displays are typically assembled using a back frame, which consists of multiple parallel support rods and connecting brackets. Adjacent support rods are connected by connecting brackets, and each support rod has a connecting block at both ends. During production, holes need to be drilled in the support rods, and clamps are usually used to hold and fix each connecting block. However, there is a certain tolerance range in the spacing between the connecting blocks on adjacent support rods. This means that existing clamps cannot effectively hold all connecting blocks simultaneously, leading to loosening during back frame processing, which affects processing accuracy and product quality. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a back frame clamping fixture for an outdoor display screen, which can adapt to the spacing tolerance between the back frame connecting blocks, ensure that each connecting block can be effectively clamped, and prevent the back frame from loosening during processing.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a back frame clamping fixture for an outdoor display screen, including a base, multiple positioning slide rails, multiple positioning sliders, multiple clamping cylinders and at least one locking cylinder. The locking cylinder and the positioning slide rails are all installed on the base. The multiple positioning slide rails extend in the same direction. The positioning sliders are slidably installed on the positioning slide rails. The clamping cylinders are installed on the positioning sliders. The clamping cylinders are provided with positioning claws for clamping the connecting blocks of the back frame. The locking cylinders are provided with locking claws for clamping the positioning claws.
[0005] Furthermore, the number of locking cylinders is the same as the number of clamping cylinders.
[0006] Furthermore, a first sliding ball is provided between the positioning slider and the positioning slide rail.
[0007] Furthermore, the positioning slide rail is detachably mounted on the base.
[0008] Furthermore, it also includes a locking slider and a locking slide rail, wherein the locking slider is slidably mounted on the locking slide rail, the locking cylinder is mounted on the locking slider, the locking slide rail is mounted on the base, and the extending direction of the locking slide rail is perpendicular to the extending direction of the positioning slide rail.
[0009] Furthermore, the locking cylinder is detachably mounted on the locking slider.
[0010] Furthermore, a second sliding ball is provided between the locking slider and the locking slide rail.
[0011] Furthermore, the positioning gripper is provided with a first buffer layer, which is used to abut against the connecting block.
[0012] Furthermore, the locking gripper is provided with a second buffer layer, which is used to abut against the positioning gripper.
[0013] Furthermore, the clamping cylinder is detachably mounted on the positioning slider.
[0014] The beneficial effects of this utility model are as follows: The outdoor display screen back frame clamping fixture provided by this utility model achieves precise clamping and stable locking of the back frame connecting blocks through the cooperation of the base, positioning slide rail, positioning slider, clamping cylinder, and locking cylinder. The sliding capability of the positioning slider on the positioning slide rail can flexibly adapt to the tolerance changes in the spacing of the back frame connecting blocks, ensuring that each connecting block can be accurately and effectively clamped by the positioning claws of the clamping cylinder, thereby ensuring the positional accuracy of the back frame during processing processes such as drilling. At the same time, the clamping action of the locking claws of the locking cylinder on the positioning claws further prevents the back frame from loosening or shifting along the slide rail direction during processing, greatly enhancing the stability and reliability of the clamping system, effectively improving the processing quality and production efficiency of the outdoor display screen back frame, and reducing the scrap rate and equipment wear caused by unstable clamping. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the back frame for an outdoor display screen in the prior art;
[0016] Figure 2 This is a schematic diagram of the structure of the outdoor display screen back frame clamping fixture according to Embodiment 1 of this utility model (in an unloaded state).
[0017] Figure 3 This is a schematic diagram of the structure of the back frame clamping fixture for an outdoor display screen according to Embodiment 1 of this utility model.
[0018] Label Explanation:
[0019] 1. Support rod; 11. Connecting block; 12. Connecting frame; 2. Base; 21. Support platform; 3. Positioning slide rail; 4. Positioning slider; 5. Clamping cylinder; 51. Positioning gripper; 6. Locking cylinder; 61. Locking gripper; 7. Locking slider; 8. Locking slide rail. Detailed Implementation
[0020] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0021] Please refer to Figures 1 to 3 An outdoor display screen back frame clamping fixture includes a base 2, multiple positioning slide rails 3, multiple positioning sliders 4, multiple clamping cylinders 5, and at least one locking cylinder 6. The locking cylinder 6 and the positioning slide rails 3 are all mounted on the base 2. The multiple positioning slide rails 3 extend in the same direction. The positioning sliders 4 are slidably mounted on the positioning slide rails 3. The clamping cylinders 5 are mounted on the positioning sliders 4. The clamping cylinders 5 are provided with positioning claws 51 for clamping the connecting block 11 of the back frame. The locking cylinder 6 is provided with locking claws 61 for clamping the positioning claws 51.
[0022] As described above, the beneficial effects of this utility model are as follows: through the cooperation of the base 2, positioning slide rail 3, positioning slider 4, clamping cylinder 5, and locking cylinder 6, precise clamping and stable locking of the back frame connecting block 11 are achieved. The sliding capability of the positioning slider 4 on the positioning slide rail 3 can flexibly adapt to the tolerance changes in the spacing of the back frame connecting blocks 11, ensuring that each connecting block 11 can be accurately and effectively clamped by the positioning jaws 51 of the clamping cylinder 5, thereby ensuring the positional accuracy of the back frame during processing steps such as drilling. At the same time, the clamping action of the locking jaws 61 of the locking cylinder 6 on the positioning jaws 51 further prevents the back frame from loosening or shifting along the slide rail direction during processing, greatly enhancing the stability and reliability of the clamping system, effectively improving the processing quality and production efficiency of outdoor display screen back frames, and reducing the scrap rate and equipment wear caused by unstable clamping.
[0023] Furthermore, the number of locking cylinders 6 is the same as the number of clamping cylinders 5.
[0024] As described above, the number of locking cylinders 6 and clamping cylinders 5 is the same, which ensures that each positioning claw 51 of the clamping cylinder 5 is clamped by a corresponding locking cylinder 6, achieving all-round locking, enhancing the stability of the back frame during processing, preventing the back frame from sliding due to individual positioning claws 51 not being locked, and further improving processing accuracy and reliability.
[0025] Furthermore, a first sliding ball is provided between the positioning slider 4 and the positioning slide rail 3.
[0026] As described above, a first sliding ball is provided between the positioning slider 4 and the positioning slide rail 3, which effectively reduces the sliding friction and makes the positioning slider 4 slide more smoothly and flexibly, making it easier to quickly adjust the position of the positioning gripper 51 to adapt to the connecting blocks 11 with different spacings; at the same time, the rolling friction of the ball can also improve the positioning accuracy of the positioning slider 4 and improve the accuracy of the back frame clamping.
[0027] Furthermore, the positioning slide rail 3 is detachably installed on the base 2.
[0028] As described above, the positioning slide rail 3 can be detachably installed on the base 2, which facilitates quick replacement or adjustment of the positioning slide rail 3 according to different sizes or specifications of back frames to meet diverse production needs; at the same time, it facilitates the installation, disassembly and maintenance of the positioning slide rail 3, reduces maintenance costs and time, and improves production efficiency.
[0029] Furthermore, it also includes a locking slider 7 and a locking slide rail 8. The locking slider 7 is slidably mounted on the locking slide rail 8. The locking cylinder 6 is mounted on the locking slider 7. The locking slide rail 8 is mounted on the base 2 and the extending direction of the locking slide rail 8 is perpendicular to the extending direction of the positioning slide rail 3.
[0030] As described above, by adding a locking slider 7 and a locking slide rail 8, with the locking slide rail 8 extending perpendicularly to the positioning slide rail 3, the locking cylinder 6 can slide on the locking slide rail 8 via the locking slider 7. This allows for multi-angle and all-around locking of the positioning gripper 51 from a direction perpendicular to the positioning slide rail 3. Furthermore, the position of the locking cylinder 6 can be flexibly adjusted according to the actual position of the back frame and processing requirements, improving the flexibility and accuracy of locking and further enhancing the stability of the back frame during processing.
[0031] Furthermore, the locking cylinder 6 is detachably mounted on the locking slider 7.
[0032] As described above, the locking cylinder 6 can be detachably installed on the locking slider 7, which facilitates quick replacement or adjustment of the locking cylinder 6 to adapt to different specifications of positioning jaws 51 or different locking requirements; at the same time, it facilitates the installation, disassembly and maintenance of the locking cylinder 6, improves the maintainability and operability of the equipment, and reduces maintenance time and costs.
[0033] Furthermore, a second sliding ball is provided between the locking slider 7 and the locking slide rail 8.
[0034] As described above, the second sliding ball is provided between the locking slider 7 and the locking slide rail 8, which can significantly reduce the friction between the locking slider 7 and the locking slide rail 8, making the locking slider 7 slide more smoothly and facilitating the quick adjustment of the position of the locking cylinder 6; at the same time, it improves the positioning accuracy of the locking slider 7, ensuring that the locking cylinder 6 can accurately lock the positioning gripper 51, thereby improving the stability and reliability of the back frame processing.
[0035] Furthermore, the positioning gripper 51 is provided with a first buffer layer, which is used to abut against the connecting block 11.
[0036] As described above, the positioning gripper 51 is provided with a first buffer layer, which can play a buffering role when it comes into contact with the connecting block 11, reducing the impact force and damage to the connecting block 11 during the clamping process, and protecting the surface quality and structural integrity of the connecting block 11; at the same time, the buffer layer can also adapt to the shape and surface unevenness of the connecting block 11, further improving the stability and reliability of the clamping.
[0037] Furthermore, the locking gripper 61 is provided with a second buffer layer, which is used to abut against the positioning gripper 51.
[0038] As described above, the locking gripper 61 is provided with a second buffer layer, which plays a buffering role when it comes into contact with the positioning gripper 51, preventing excessive clamping force from damaging the positioning gripper 51 and extending the service life of the positioning gripper 51; it can also make the clamping between the locking gripper 61 and the positioning gripper 51 more stable, avoid loosening caused by impact or vibration, and further improve the stability of the back frame processing.
[0039] Furthermore, the clamping cylinder 5 is detachably mounted on the positioning slider 4.
[0040] As described above, the clamping cylinder 5 can be detachably installed on the positioning slider 4, which facilitates quick replacement or adjustment of the clamping cylinder 5 according to actual production needs to adapt to different specifications of connecting blocks 11 or different clamping force requirements; at the same time, it facilitates the installation, disassembly and maintenance of the clamping cylinder 5, improves the flexibility and maintainability of production, and reduces the maintenance cost and time of the equipment.
[0041] Please refer to Figures 1 to 3 The first embodiment of this utility model is as follows: a back frame clamping fixture for an outdoor display screen, used to clamp the back frame of the outdoor display screen. The back frame includes multiple parallel support rods 1 and connecting frames 12. Adjacent support rods 1 are connected by connecting frames 12. Each of the two ends of the support rod 1 is provided with a connecting block 11. The back frame clamping fixture for the outdoor display screen includes a base 2, multiple positioning slide rails 3, multiple positioning sliders 4, multiple clamping cylinders 5 and at least one locking cylinder 6. The locking cylinder 6 and the positioning slide rails 3 are all installed on the base 2. The multiple positioning slide rails 3 extend in the same direction. The positioning sliders 4 are slidably installed on the positioning slide rails 3. The clamping cylinders 5 are installed on the positioning sliders 4. The clamping cylinders 5 are provided with positioning claws 51 for clamping the connecting blocks 11 of the back frame. The locking cylinder 6 is provided with locking claws 61 for clamping the positioning claws 51. Specifically, the base 2 is also provided with a support platform 21, which is used to support and position the connecting frame 12.
[0042] In this embodiment, the number of locking cylinders 6 is the same as the number of clamping cylinders 5. This ensures that each positioning jaw 51 of the clamping cylinder 5 is clamped by a corresponding locking cylinder 6, achieving omnidirectional locking, enhancing the stability of the back frame during processing, preventing slippage of the back frame due to individual positioning jaws 51 not being locked, and further improving processing accuracy and reliability. The clamping cylinders 5 are detachably installed on the positioning slider 4, facilitating quick replacement or adjustment of the clamping cylinders 5 according to actual production needs to adapt to different specifications of connecting blocks 11 or different clamping force requirements. Simultaneously, it facilitates the installation, disassembly, and maintenance of the clamping cylinders 5, improving production flexibility and maintainability, and reducing equipment maintenance costs and time.
[0043] Preferably, the positioning slide rail 3 is detachably installed on the base 2. This facilitates quick replacement or adjustment of the positioning slide rail 3 according to different sizes or specifications of the back frame, adapting to diverse production needs. Simultaneously, it facilitates the installation, disassembly, and maintenance of the positioning slide rail 3, reducing maintenance costs and time, and improving production efficiency. Furthermore, the back frame clamping fixture of the outdoor display screen also includes a locking slider 7 and a locking slide rail 8. The locking slider 7 is slidably installed on the locking slide rail 8, and the locking cylinder 6 is installed on the locking slider 7. The locking slide rail 8 is installed on the base 2, and the extending direction of the locking slide rail 8 is perpendicular to the extending direction of the positioning slide rail 3. It is understood that adding the locking slider 7 and the locking slide rail 8, and locking... The extension direction of the slide rail 8 is perpendicular to the positioning slide rail 3, allowing the locking cylinder 6 to slide on the locking slide rail 8 via the locking slider 7. This enables multi-angle, all-around locking of the positioning gripper 51 from a direction perpendicular to the positioning slide rail 3. Furthermore, the position of the locking cylinder 6 can be flexibly adjusted according to the actual position of the back frame and processing requirements, improving locking flexibility and accuracy, and further enhancing the stability of the back frame during processing. Specifically, the locking cylinder 6 is detachably installed on the locking slider 7, facilitating quick replacement or adjustment of the locking cylinder 6 to adapt to different specifications of the positioning gripper 51 or different locking requirements. Simultaneously, it facilitates the installation, disassembly, and maintenance of the locking cylinder 6, improving the maintainability and operability of the equipment and reducing maintenance time and costs. The detachable connection methods include, but are not limited to, bolt connections, pin connections, etc., which will not be elaborated here.
[0044] Optionally, a first sliding ball can be provided between the positioning slider 4 and the positioning slide rail 3. This effectively reduces sliding friction, making the positioning slider 4 slide more smoothly and flexibly, facilitating quick adjustment of the position of the positioning gripper 51 to accommodate connecting blocks 11 with different spacings. Simultaneously, the rolling friction of the ball can improve the positioning accuracy of the positioning slider 4 and enhance the accuracy of the back frame clamping. Furthermore, a second sliding ball can be provided between the locking slider 7 and the locking slide rail 8. This significantly reduces the friction between the locking slider 7 and the locking slide rail 8, making the locking slider 7 slide more smoothly and facilitating quick adjustment of the position of the locking cylinder 6. Simultaneously, it improves the positioning accuracy of the locking slider 7, ensuring that the locking cylinder 6 can accurately lock the positioning gripper 51, thus enhancing the stability and reliability of back frame processing.
[0045] In some other embodiments, a first buffer layer (not shown) can be provided on the positioning jaw 51. The first buffer layer is used to abut against the connecting block 11, thus providing a buffering effect, reducing the impact force and damage to the connecting block 11 during clamping, and protecting the surface quality and structural integrity of the connecting block 11. At the same time, the buffer layer can also adapt to the shape and surface unevenness of the connecting block 11, further improving the stability and reliability of clamping. In addition, a second buffer layer (not shown) can be provided on the locking jaw 61. The second buffer layer is used to abut against the positioning jaw 51, thus preventing excessive clamping force from damaging the positioning jaw 51 and extending the service life of the positioning jaw 51. It can also make the clamping between the locking jaw 61 and the positioning jaw 51 more stable, avoiding loosening caused by impact or vibration, and further improving the stability of the back frame processing. The materials of the first buffer layer and the second buffer layer can be rubber, plastic, or epoxy resin, etc.
[0046] In summary, the outdoor display screen back frame clamping fixture provided by this utility model achieves precise clamping and stable locking of the back frame connecting blocks through the cooperation of a base, positioning slide rail, positioning slider, clamping cylinder, and locking cylinder. The sliding capability of the positioning slider on the positioning slide rail can flexibly adapt to the tolerance changes in the spacing of the back frame connecting blocks, ensuring that each connecting block can be accurately and effectively clamped by the positioning jaws of the clamping cylinder, thereby guaranteeing the positional accuracy of the back frame during processing steps such as drilling. Simultaneously, the clamping action of the locking jaws of the locking cylinder on the positioning jaws further prevents the back frame from loosening or shifting along the slide rail direction during processing, greatly enhancing the stability and reliability of the clamping system, effectively improving the processing quality and production efficiency of the outdoor display screen back frame, and reducing the scrap rate and equipment wear caused by unstable clamping.
[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A back frame clamping fixture for an outdoor display screen, characterized in that, The device includes a base, multiple positioning slide rails, multiple positioning sliders, multiple clamping cylinders, and at least one locking cylinder. The locking cylinder and the positioning slide rails are all mounted on the base. The multiple positioning slide rails extend in the same direction. The positioning sliders are slidably mounted on the positioning slide rails. The clamping cylinders are mounted on the positioning sliders. The clamping cylinders are provided with positioning claws for clamping the connecting blocks of the back frame. The locking cylinders are provided with locking claws for clamping the positioning claws.
2. The outdoor display screen back frame clamping fixture according to claim 1, characterized in that, The number of locking cylinders is the same as the number of clamping cylinders.
3. The outdoor display screen back frame clamping fixture according to claim 1, characterized in that, A first sliding ball is provided between the positioning slider and the positioning slide rail.
4. The outdoor display screen back frame clamping fixture according to claim 1, characterized in that, The positioning slide rail is detachably installed on the base.
5. The outdoor display screen back frame clamping fixture according to claim 4, characterized in that, It also includes a locking slider and a locking slide rail, wherein the locking slider is slidably mounted on the locking slide rail, the locking cylinder is mounted on the locking slider, and the locking slide rail is mounted on the base and the extension direction of the locking slide rail is perpendicular to the extension direction of the positioning slide rail.
6. The outdoor display screen back frame clamping fixture according to claim 5, characterized in that, The locking cylinder is detachably mounted on the locking slider.
7. The outdoor display screen back frame clamping fixture according to claim 5, characterized in that, A second sliding ball is provided between the locking slider and the locking slide rail.
8. The outdoor display screen back frame clamping fixture according to claim 1, characterized in that, The positioning gripper is provided with a first buffer layer, which is used to abut against the connecting block.
9. The outdoor display screen back frame clamping fixture according to claim 1, characterized in that, The locking gripper is provided with a second buffer layer, which is used to abut against the positioning gripper.
10. The outdoor display screen back frame clamping fixture according to claim 1, characterized in that, The clamping cylinder is detachably mounted on the positioning slider.