Novel locking device

Abstract

The utility model relates to a novel locking device. The novel locking device comprises a lock shaft, a positioning sleeve and a receiving sleeve, the lock shaft comprises a first end and a second end, the receiving sleeve is installed at the second end of the lock shaft, and the positioning sleeve is installed between the first end and the second end of the lock shaft; the lock shaft is provided with a through hole, an adjusting screw, a jacking steel ball and a plurality of locking steel balls are arranged in the through hole, and threads matched with the adjusting screw are arranged on the inner wall of the through hole. The jacking steel ball is in contact with the end part of the adjusting screw, and the locking steel ball is in contact with the jacking steel ball; the first end of the lock shaft is used for installing the adjusting screw, the second end of the lock shaft is provided with a ball hole matched with the locking steel ball and an elastic piece for limiting the locking steel ball, and the elastic piece is used for preventing the locking steel ball from being separated from the lock shaft. The novel locking device can achieve high-precision positioning and is high in stability.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly, in particular to a novel locking device. Background Art

[0002] In the working environment of molds, measuring equipment, and sighting equipment, it is often necessary to quickly lock and quickly separate multi-layer workpieces. In the related art, fast locking and quick separation are mainly achieved through bolts or mark hinges. However, the methods of fast locking and quick separation in the related art have many defects. For example, the internal threads on the workpiece will be damaged after the bolts are disassembled and assembled many times, and the bolts cannot be positioned with high precision on the multi-layer structure; the mark hinge is large in size and can only be used for two-layer locking and cannot be accurately positioned. It is easy to automatically unlock due to external collisions. Utility Model Content

[0003] Based on this, it is necessary to provide a new locking device to address the problem that there are many defects in the methods of quick locking and quick separation in related technologies.

[0004] A novel locking device includes a locking shaft, a positioning sleeve and a receiving sleeve, wherein the locking shaft includes a first end and a second end, the receiving sleeve is installed at the second end of the locking shaft, and the positioning sleeve is installed between the first end and the second end of the locking shaft;

[0005] The lock shaft is provided with a through hole, in which an adjusting screw, a lifting steel ball and a plurality of locking steel balls are arranged, and the inner wall of the through hole is provided with a thread matching the adjusting screw;

[0006] The lifting steel ball contacts the end of the adjusting screw, and the locking steel ball contacts the lifting steel ball;

[0007] The first end of the locking shaft is used to install the adjusting screw, and the second end of the locking shaft is provided with a ball hole matching the locking steel ball and an elastic member for limiting the locking steel ball, and the elastic member is used to prevent the locking steel ball from falling off the locking shaft.

[0008] When locking two or more structural parts, the above-mentioned novel locking device first fixes the receiving sleeve on one structural part and the positioning sleeve on another or more structural parts, and aligns the receiving sleeve and the positioning sleeve; then the locking shaft passes through the positioning sleeve and the receiving sleeve in sequence, and the adjusting screw is tightened with a wrench, so that the adjusting screw squeezes the lifting steel ball forward along the locking shaft through hole, and the lifting steel ball squeezes the locking steel ball. After being squeezed, the locking steel ball expands toward the outside of the locking shaft through the ball hole and tightly abuts against the inner wall of the receiving sleeve, and the elastic member produces elastic deformation and prevents the locking steel ball from falling out of the locking shaft, thereby achieving axial locking of the two or more structural parts. When disassembling the structural parts, the adjusting screw is loosened with a wrench, so that the adjusting screw retreats along the locking shaft through hole, and the lifting steel ball is no longer squeezed by the adjusting screw and retreats along the locking shaft through hole; then, under the action of the elastic member, the locking steel ball retracts toward the inside of the locking shaft through the ball hole and no longer abuts against the inner wall of the receiving sleeve, thereby achieving disassembly of the two or more structural parts. It can be seen that the new locking device can achieve rapid locking and disassembly of two or more structural parts by tightening and loosening the adjusting screw, thereby improving work efficiency; furthermore, the size of the locking shaft and the positioning sleeve can be set according to the thickness of the structural part to be locked. Through the high-precision matching of the locking shaft and the positioning sleeve, two or more structural parts can achieve high-precision repeatable positioning and locking at the micron level, thereby reducing maintenance costs.

[0009] In one embodiment, the outer wall of the lock shaft is provided with a mounting groove for fitting the elastic member.

[0010] In one embodiment, the elastic member is a spring.

[0011] In one embodiment, the receiving sleeve is provided with a mounting hole for fitting with the receiving sleeve.

[0012] In one embodiment, the receiving sleeve is further provided with an anti-slip groove for cooperating with the installation of the receiving sleeve.

[0013] In one embodiment, the number of the locking steel balls and the number of the ball holes are both 3.

[0014] In one embodiment, the three ball holes are arranged at the second end of the lock shaft at an interval of 120° between each other.

[0015] In one embodiment, the locking steel ball and the lifting steel ball are the same size.

[0016] In one embodiment, the adjusting screw is a hexagon socket screw.

[0017] In one embodiment, the first end of the lock shaft is provided with a limiting protrusion that cooperates with the positioning sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall assembly structure of a new locking device of the present utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of a new locking device of the utility model;

[0020] Figure 3 This is a schematic diagram of the partial assembly structure of a new locking device of the present utility model;

[0021] Figure 4 This is a structural diagram of a lock shaft in a novel locking device of the present utility model;

[0022] Figure 5 This is a structural diagram of a receiving sleeve in a novel locking device of the utility model;

[0023] Figure 6 This is a structural diagram of a positioning sleeve in a novel locking device of the utility model;

[0024] Figure 7 This is a schematic diagram of an application of a new locking device of the utility model;

[0025] Among them, 10 is the locking shaft, 20 is the positioning sleeve, 30 is the receiving sleeve, 40 is the adjusting screw, 50 is the lifting steel ball, 60 is the locking steel ball, 70 is the elastic part, 11 is the through hole, 12 is the ball hole, 13 is the installation groove, 14 is the limiting protrusion, 31 is the installation hole, and 32 is the anti-slip groove. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only."

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] The utility model discloses a novel locking device.

[0030] like Figures 1 to 7 As shown, the new locking device includes a locking shaft 10, a positioning sleeve 20 and a receiving sleeve 30. The locking shaft 10 includes a first end and a second end. The receiving sleeve 30 is installed at the second end of the locking shaft 10, and the positioning sleeve 20 is installed between the first end and the second end of the locking shaft 10. The locking shaft 10 is provided with a through hole 11, in which an adjusting screw 40, a lifting steel ball 50 and a plurality of locking steel balls 60 are provided. The inner wall of the through hole 11 is provided with a thread that matches the adjusting screw 40. The lifting steel ball 50 contacts the end of the adjusting screw 40, and the locking steel ball 60 contacts the lifting steel ball 50. The first end of the locking shaft 10 is used to install the adjusting screw 40, and the second end of the locking shaft 10 is provided with a ball hole 12 that matches the locking steel ball 60 and an elastic member 70 for limiting the locking steel ball 60. The elastic member 70 is used to prevent the locking steel ball 60 from falling out of the locking shaft 10.

[0031] When locking two or more structural parts, the above-mentioned novel locking device first fixes the receiving sleeve on one structural part and the positioning sleeve on another or more structural parts, and aligns the receiving sleeve and the positioning sleeve; then the locking shaft passes through the positioning sleeve and the receiving sleeve in sequence, and the adjusting screw is tightened with a wrench, so that the adjusting screw squeezes the lifting steel ball forward along the locking shaft through hole, and the lifting steel ball squeezes the locking steel ball. After being squeezed, the locking steel ball expands toward the outside of the locking shaft through the ball hole and tightly abuts against the inner wall of the receiving sleeve, and the elastic member produces elastic deformation and prevents the locking steel ball from falling out of the locking shaft, thereby achieving axial locking of the two or more structural parts. When disassembling the structural parts, the adjusting screw is loosened with a wrench, so that the adjusting screw retreats along the locking shaft through hole, and the lifting steel ball is no longer squeezed by the adjusting screw and retreats along the locking shaft through hole; then, under the action of the elastic member, the locking steel ball retracts toward the inside of the locking shaft through the ball hole and no longer abuts against the inner wall of the receiving sleeve, thereby achieving disassembly of the two or more structural parts. It can be seen that the new locking device can achieve rapid locking and disassembly of two or more structural parts by tightening and loosening the adjusting screw, thereby improving work efficiency; furthermore, the size of the locking shaft and the positioning sleeve can be set according to the thickness of the structural part to be locked. Through the high-precision matching of the locking shaft and the positioning sleeve, two or more structural parts can achieve high-precision repeatable positioning and locking at the micron level, thereby reducing maintenance costs.

[0032] The elastic member 70 is annular in shape, and the outer wall of the lock shaft 10 is provided with a mounting groove 13 for the elastic member 70. The mounting groove 13 provides a more secure mounting for the elastic member 70, preventing the elastic member 70 from shifting relative to the lock shaft 10 and causing the locking ball 60 to fall off the lock shaft 10. Furthermore, the type of the elastic member 70 can be customized based on actual needs. Preferably, the elastic member 70 is a spring.

[0033] The receiving sleeve 30 is provided with a mounting hole 31 for cooperating with the receiving sleeve 30. Through the mounting hole 31, the receiving sleeve 30 can be installed with a pin, thereby making the installation of the receiving sleeve 30 more secure. Furthermore, the receiving sleeve 30 is provided with an anti-slip groove 32 for cooperating with the installation of the receiving sleeve 30. The anti-slip groove 32 prevents the receiving sleeve 30 from moving relative to the structural member, thereby improving the locking effect of the new locking device.

[0034] Among them, the number of locking steel balls 60 and ball holes 12 is equal, and each locking steel ball 60 has a unique corresponding ball hole 12. The number of locking steel balls 60 and ball holes 12 can be set according to actual needs. Preferably, the number of locking steel balls 60 and ball holes 12 is 3. Further, the three ball holes 12 are arranged at the second end of the lock shaft 10 at a spacing of 120°. By arranging the three ball holes 12 at the second end of the lock shaft 10 at a spacing of 120°, the axial abutment force between the locking steel ball 60 and the receiving sleeve 30 is more evenly distributed, thereby improving the stability of the new locking device during locking. Further, the size of the locking steel ball 60 and the lifting steel ball 50 can be set according to actual needs. Preferably, the locking steel ball 60 is the same size as the lifting steel ball 50.

[0035] The adjusting screw 40 is a hexagon socket screw. Hexagon socket screws have six stress-bearing surfaces when tightening or loosening, making them more durable than slotted screws, which have only two stress-bearing surfaces, or cross-shaped screws, which have four. Furthermore, hexagon socket screws can be countersunk during use, meaning the entire nut is sunk into the workpiece, maintaining a smooth and aesthetically pleasing surface.

[0036] The first end of the locking shaft 10 is provided with a stopper protrusion 14 that engages with the positioning sleeve 20. This stopper protrusion 14 allows the locking shaft 10 to position the positioning sleeve 20, preventing it from falling out, thereby enhancing the structural stability of the novel locking device during locking. Furthermore, the stopper protrusion 14 can also cooperate with a structural member used for locking, making the novel locking device even more secure during locking.

[0037] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A new locking device, characterized in that: It includes a locking shaft, a positioning sleeve and a receiving sleeve, wherein the locking shaft includes a first end and a second end, the receiving sleeve is installed on the second end of the locking shaft, and the positioning sleeve is installed between the first end and the second end of the locking shaft; The lock shaft is provided with a through hole, in which an adjusting screw, a lifting steel ball and a plurality of locking steel balls are arranged, and the inner wall of the through hole is provided with a thread matching the adjusting screw; The lifting steel ball contacts the end of the adjusting screw, and the locking steel ball contacts the lifting steel ball; The first end of the locking shaft is used to install the adjusting screw, and the second end of the locking shaft is provided with a ball hole matching the locking steel ball and an elastic member for limiting the locking steel ball, and the elastic member is used to prevent the locking steel ball from falling off the locking shaft.

2. The novel locking device according to claim 1, characterized in that: The outer wall of the lock shaft is provided with a mounting groove for fitting the elastic member.

3. The novel locking device according to claim 2, characterized in that: The elastic member is a spring.

4. The novel locking device according to claim 3, characterized in that: The receiving sleeve is provided with a mounting hole for matching the mounting of the receiving sleeve.

5. The novel locking device according to claim 4, characterized in that: The receiving sleeve is also provided with an anti-slip groove for matching the installation of the receiving sleeve.

6. The novel locking device according to any one of claims 1 to 5, characterized in that: The number of the locking steel balls and the number of the ball holes are both 3.

7. The novel locking device according to claim 6, characterized in that: The three ball holes are arranged at the second end of the lock shaft at an interval of 120 degrees.

8. The novel locking device according to claim 7, characterized in that: The locking steel ball and the lifting steel ball are the same size.

9. The novel locking device according to claim 1, characterized in that: The adjusting screw is a hexagon socket screw.

10. The novel locking device according to claim 1, characterized in that: The first end of the lock shaft is provided with a limiting protrusion that cooperates with the positioning sleeve.

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