A flexible, tight-fitting limiting ruler

By introducing an elastic locking limit structure into the large ruler of a woodworking sliding table saw, and using stabilizing screws and ball bearing positioning components, the problem of core pulling wobbling was solved, and stable movement and accurate measurement of the large ruler pull rod assembly were achieved.

CN224455586UActive Publication Date: 2026-07-03山东一林精工科技有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
山东一林精工科技有限公司
Filing Date
2025-07-09
Publication Date
2026-07-03

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    Figure CN224455586U_ABST
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Abstract

This utility model relates to the field of woodworking equipment technology, and discloses a flexible, locking, limiting ruler, comprising a ruler pull rod assembly, ruler ear devices, and a ruler body. The ruler pull rod assembly includes a ruler end and a pull core. The pull core is slidably connected inside the ruler body, and one end of the pull core is fixedly connected to the ruler end. Multiple symmetrically distributed stabilizing screws are provided on the end of the ruler body near the ruler end, and each stabilizing screw has a first locking nut threaded onto its outer wall. One side of the first locking nut is fixedly connected to the ruler body, and the other ends of the two first locking nuts abut against the outer wall of the pull core. Multiple second locking nuts are also fixedly provided on the lower side of the inner wall of the ruler body, and each second locking nut has a ball positioning assembly threaded into it. The upper end of the ball positioning assembly abuts against the outer wall of the pull core. Two ruler ear devices are also slidably connected to the ruler body. This utility model has the advantage of stable and non-shaking movement during the movement of the ruler pull rod assembly.
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Description

Technical Field

[0001] This utility model relates to the field of woodworking equipment technology, and in particular to an elastic, tight-fitting, limiting ruler. Background Technology

[0002] The large ruler of a woodworking sliding table saw is an important assembly component of the sliding table saw equipment, playing a vital role in measuring the length.

[0003] The original method of directly inserting the core into the ruler body resulted in a large gap between the core and the ruler body, leading to wobbling and unstable positioning.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a flexible, close-range limiting ruler to overcome the shortcomings in current practical applications. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide an elastic, tight-fitting limiting ruler, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flexible, tight-fitting, limiting ruler includes a ruler pull rod assembly, a ruler ear device, a ruler body, and a plug. The ruler pull rod assembly includes a ruler end, a core puller, a core puller guide block for the ruler end, a limiting handle, a ruler magnifying glass, and a core puller slider. A core puller is slidably connected inside the ruler body. One end of the core puller is fixedly connected to the ruler end of the ruler pull rod assembly, and the other end is equipped with the limiting handle, the core puller slider, and the ruler magnifying glass. Both the ruler end and the ruler body at their respective ends, which are far apart from each other, are fixedly connected to plugs by self-tapping screws. The ruler body is closer to the ruler end. One end of the scale is provided with multiple symmetrically distributed stabilizing screws, and the outer wall of each stabilizing screw is threaded with a first locking nut. One side of the first locking nut is fixedly connected to the scale body, and the stabilizing screw is locked by the first locking nut. The other ends of the two first locking nuts abut against the outer wall of the core puller. Multiple second locking nuts are also fixedly provided on the lower side of the inner wall of the scale body. Each of the second locking nuts is threaded with a ball positioning assembly. The upper end of the ball positioning assembly abuts against the outer wall of the core puller. Two large scale ear devices are also slidably connected to the scale body.

[0008] In a further technical solution, a main scale and a secondary scale are fixedly connected to the upper two sides of the scale body, and a magnifying glass for the large scale ear is fixedly installed on the large scale ear device.

[0009] A further technical solution is provided, wherein the ball positioning assembly includes a locking screw, a receiving groove, a spring, and a steel ball; the inner wall of the second locking nut is threaded with a locking screw, the upper end of the locking screw is provided with a receiving groove, and a steel ball is placed in the receiving groove, the steel ball abuts against the outer wall of the core puller, and a spring is provided between the bottom end of the receiving groove and the steel ball.

[0010] In summary, the embodiments of this utility model have the following beneficial effects compared with the prior art:

[0011] 1. A stabilizing screw is symmetrically arranged at one end of the ruler body near the large ruler end. The stabilizing screw is locked by the first locking nut. The core is positioned by the cooperation of the first locking nut and the stabilizing screw, thereby limiting the left and right swaying of the core and stabilizing the movement of the large ruler pull rod assembly.

[0012] 2. The spring constantly pushes the steel ball to press against the outer wall of the core puller. The locking screw is locked by the second locking nut. By rotating the locking screw, the spring's deformation is controlled, thereby adjusting the force applied by the spring to the steel ball, and thus adjusting the force between the steel ball and the outer wall of the core puller. This makes the core puller movement process more stable, and consequently, the movement process of the large ruler puller rod assembly is more stable.

[0013] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0016] Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the middle section;

[0017] Figure 4 This is a three-dimensional structural diagram of the large ruler pull rod assembly of this utility model;

[0018] Figure 5 This utility model Figure 3 A three-dimensional structural diagram of the middle section;

[0019] Figure 6 This is a three-dimensional structural diagram of the core-pulling part and the clamping device in the pull rod assembly of this utility model;

[0020] Figure 7 This is a cross-sectional three-dimensional structural diagram of the ball positioning component in this utility model.

[0021] In the diagram: 1. Large ruler pull rod assembly; 101. Large ruler end; 102. Core puller; 103. Large ruler end core puller guide block; 104. Limit handle; 105. Large ruler magnifying glass; 106. Core puller slider; 2. Large ruler ear device; 3. First locking nut; 4. Stabilizing screw; 5. Main scale; 7. Ruler body; 8. Self-tapping screw; 9. Plug; 10. Second locking nut; 11. Ball positioning assembly; 1101. Fastening screw; 1102. Receiving groove; 1103. Spring; 1104. Steel ball; 12. Large ruler ear magnifying glass; 13. Secondary scale. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] like Figures 1-7 As shown, this utility model embodiment provides an elastic, tight-fitting, limiting ruler, including a ruler pull rod assembly 1, a ruler ear device 2, a ruler body 7, and a plug 9. The ruler pull rod assembly 1 includes a ruler end 101, a pull core 102, a ruler end pull core guide block 103, a limiting handle 104, a ruler magnifying glass 105, and a pull core slider 106. The pull core 102 is slidably connected inside the ruler body 7. One end of the pull core 102 is fixedly connected to the ruler end 101 of the ruler pull rod assembly 1, and the other end is fixedly connected to the pull core slider 106. The pull core slider is equipped with the ruler magnifying glass 105 and the limiting handle 104. The ends of the ruler end 101 and the ruler body 7 that are far apart from each other are both fixedly connected to the plug 9 by self-tapping screws 8. The ruler body 7... A plurality of symmetrically distributed stabilizing screws 4 are provided near one end of the large ruler 101, and the outer wall of each stabilizing screw 4 is threaded with a first locking nut 3. One side of the first locking nut 3 is fixedly connected to the ruler body 7, and the stabilizing screw 4 is locked by the first locking nut 3. The other ends of the two first locking nuts 3 abut against the outer wall of the pull core 102. The pull core 102 is restricted from swaying left and right by the cooperation of the first locking nuts 3 and the stabilizing screws 4. A plurality of second locking nuts 10 are also fixedly provided on the lower side of the inner wall of the ruler body 7. Each of the second locking nuts 10 is threaded with a ball positioning component 11. The upper end of the ball positioning component 11 abuts against the outer wall of the pull core 102. Two large ruler ear devices 2 are also slidably connected to the ruler body 7.

[0025] It is understood that the large ruler pull rod assembly 1 belongs to the prior art. The large ruler pull rod assembly 1 includes a large ruler end 101, a core puller 102, a large ruler end core puller guide block 103, a limit handle 104, a large ruler magnifying glass 105, and a core puller slider 106, etc.

[0026] Furthermore, a main scale 5 and a secondary scale 13 are fixedly connected to the upper two sides of the scale body 7, respectively. A large scale ear magnifying glass 12 is fixedly installed on the large scale ear device 2. The data on the main scale 5 is read through the large scale ear magnifying glass 12, and the large scale magnifying glass 105 is used to read the data on the secondary scale 13.

[0027] like Figure 2 , Figure 6 and Figure 7 The ball positioning assembly 11 includes a locking screw 1101, a receiving groove 1102, a spring 1103, and a steel ball 1104; the inner wall of the second locking nut 10 is threaded with the locking screw 1101, the upper end of the locking screw 1101 is provided with a receiving groove 1102, and a steel ball 1104 is placed in the receiving groove 1102. The steel ball 1104 abuts against the outer wall of the core puller 102, and a spring 1103 is provided between the bottom end of the receiving groove 1102 and the steel ball 1104.

[0028] In practical applications, the spring 1103 constantly pushes the steel ball 1104 to press against the outer wall of the core puller 102. The locking screw 1101 is locked by the second locking nut 10. By rotating the locking screw 1101 to raise or lower, the deformation of the spring 1103 is controlled, thereby adjusting the force exerted by the spring 1103 on the steel ball 1104. This adjusts the force between the steel ball 1104 and the outer wall of the core puller 102, making the movement of the core puller 102 more stable, and thus stabilizing the movement of the large ruler pull rod assembly 1.

[0029] It is understood that the large ruler ear device 2 is existing technology. The large ruler ear device 2, which is close to the end of the large ruler, can be fixedly connected to the large ruler pull rod assembly 1 through its own limiting handle. Thus, the large ruler pull rod assembly 1 can be moved by the large ruler ear device 2. The data on the scale auxiliary ruler 13 can be read by the large ruler magnifying glass 105 on the large ruler pull rod assembly 1. The limiting handle on the large ruler pull rod assembly can limit the movement position of the large ruler pull rod assembly and play a positioning role.

[0030] In this embodiment of the utility model, stabilizing screws 4 are symmetrically arranged at one end of the ruler body 7 near the large ruler end 101. The stabilizing screws 4 are locked by the first locking nut 3. The core pull 102 is positioned by the cooperation of the first locking nut 3 and the stabilizing screws 4, thereby limiting the left and right swaying of the core pull 102. The spring 1103 always pushes the steel ball 1104 to press the outer wall of the core pull 102. The locking screw 1101 is locked by the second locking nut 10. By rotating the locking screw 1101 to raise and lower, the deformation of the spring 1103 is controlled, thereby adjusting the force applied by the spring 1103 to the steel ball 1104, thereby adjusting the force between the steel ball 1104 and the outer wall of the core pull 102, so that the movement of the core pull 102 is more stable, and thus the movement of the large ruler pull rod assembly 1 is more stable.

[0031] The working principle of this utility model is as follows: The large ruler ear device 2 is fixedly connected to the large ruler pull rod assembly 1 by a limiting handle on the large ruler ear device 2 near the end of the large ruler. Then, pushing the large ruler ear device 2 moves the large ruler pull rod assembly 1. During this process, the data on the scale auxiliary scale 13 is viewed through the large ruler magnifying glass 105 on the large ruler pull rod assembly 1, thus realizing the measurement of the second numerical range. When measuring the first numerical range, the data on the scale main scale 5 can be directly read through the large ruler ear magnifying glass 12.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible, tight-fitting limiting ruler, comprising a ruler pull rod assembly (1), a ruler ear device (2), a ruler body (7), and a plug (9), wherein the ruler pull rod assembly (1) comprises a ruler end (101), a core puller (102), a ruler end core puller guide block (103), a limiting handle (104), a ruler magnifying glass (105), and a core puller slider (106), characterized in that, A pull core (102) is slidably connected inside the ruler body (7). One end of the pull core (102) is fixedly connected to the end (101) of the large ruler pull rod assembly (1), and the other end is equipped with a limit handle (104), a pull core slider (106), and a large ruler magnifying glass (105). Both the ends of the large ruler end (101) and the ruler body (7) that are far apart from each other are fixedly connected with plugs (9) by self-tapping screws (8). A plurality of symmetrically distributed stabilizing screws (4) are provided on the end of the ruler body (7) near the large ruler end (101), and the outer wall of each stabilizing screw (4) is threaded with The first locking nut (3) is fixedly connected to the ruler body (7) on one side and locks the stabilizing screw (4) by the first locking nut (3). The other ends of the two first locking nuts (3) abut against the outer wall of the core puller (102). A plurality of second locking nuts (10) are also fixedly provided on the lower side of the inner wall of the ruler body (7). A ball positioning assembly (11) is threadedly connected to each of the second locking nuts (10). The upper end of the ball positioning assembly (11) abuts against the outer wall of the core puller (102). Two large ruler ear devices (2) are also slidably connected to the ruler body (7).

2. The elastic snap stop spacer of claim 1, wherein, The main scale (5) and the auxiliary scale (13) are fixedly connected to the upper two sides of the scale body (7), and a large scale ear magnifying glass (12) is fixedly installed on the large scale ear device (2).

3. The elastic, tight-fitting limiting ruler according to claim 1, characterized in that, The ball positioning assembly (11) includes a screw (1101), a receiving groove (1102), a spring (1103), and a steel ball (1104); The inner wall of the second locking nut (10) is threaded with a locking screw (1101). The upper end of the locking screw (1101) is provided with a receiving groove (1102), and a steel ball (1104) is placed in the receiving groove (1102). The steel ball (1104) abuts against the outer wall of the core puller (102), and a spring (1103) is provided between the bottom end of the receiving groove (1102) and the steel ball (1104).