Combined type locking screw with multiple disassembly and assembly modes

Abstract

The utility model relates to a combined type locking screw with multiple disassembly and assembly modes, which is characterized by comprising a nut, a screw rod connected to the bottom of the nut, an extending part extending upwards arranged at the top of the nut, a mounting groove formed in the extending part, an expansion disassembly and assembly part arranged in the mounting groove, and a containing groove formed in the periphery of the expansion disassembly and assembly part. The containing grooves are evenly distributed in the circumferential direction, through ejection grooves are formed in the periphery of the extending part and can be opposite to the containing grooves, steel balls are arranged in the ejection grooves, a dismounting head is arranged at the end, away from the nut, of the expanding dismounting part, and the height of the other end of the expanding dismounting part is sequentially increased in the direction away from the nut to form a guide side wall. The periphery of the extension part is sleeved with a movable sleeve capable of moving in the axial direction, a limiting space is formed in the movable sleeve, and the expansion dismounting and mounting part is detachably connected with the extension part. The utility model has the following advantages and effects: the device can be disassembled and assembled through various disassembling and assembling tools, and the disassembling and assembling convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a composite locking screw with multiple disassembly and assembly modes. Background Art

[0002] Screws are locking components that connect two workpieces.

[0003] For example, a Chinese patent document with announcement number CN219623046U discloses a new type of composite material screw, including a threaded column, a screw head integrally formed at the upper end of the threaded column, multiple groups of threaded columns are longitudinally arranged through a connecting component, and a group of threaded columns located at the top is fixedly connected to the threaded column through a connecting component; the connecting component includes positioning holes and positioning pins opened on the upper and lower end surfaces of the threaded column, the upper and lower end surfaces of the threaded column are respectively provided with plug-in blocks and plug-in grooves, the plug-in blocks on the upper and lower groups of threaded columns are fixedly connected to the plug-in grooves through a fixing component, and multiple groups of positioning holes and positioning pins are opened in a circle, and the multiple groups of positioning holes and positioning pins are staggered.

[0004] In the above technical solution, through the provided connection components, threaded columns and screw heads can be added as needed, achieving a splicing effect, thereby increasing the overall length according to usage requirements and improving flexibility of use.

[0005] However, when disassembling and assembling the screw, the screw is mainly turned by a hexagonal wrench matched with the screw head to realize the disassembly and assembly of the screw, so there are certain restrictions on the tools for disassembly and assembly, so there are certain inconveniences during disassembly and assembly. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a composite locking screw with multiple disassembly and assembly methods, which can be disassembled and assembled by a variety of disassembly and assembly tools, thereby improving the convenience of disassembly and assembly.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite locking screw with multiple disassembly and assembly methods, comprising a nut, a screw rod is connected to the bottom of the nut, an extension portion extending upward is provided on the top of the nut, a mounting groove is provided in the extension portion, an expansion and disassembly portion is provided in the installation groove, a receiving groove is provided on the outer periphery of the expansion and disassembly portion, the receiving grooves are multiple and evenly distributed along the circumference, a through ejection groove is provided on the outer periphery of the extension portion, the ejection groove can be opposite to the receiving groove, a steel ball is provided in the ejection groove, a disassembly head is provided at one end of the expansion and disassembly portion away from the nut, and the height of the other end increases successively along the direction away from the nut to form a guide side wall, the guide side wall is used to guide the steel ball part to the receiving groove, a movable sleeve that can be moved in the axial direction is provided on the outer periphery of the extension portion, a limiting space is provided in the movable sleeve, and the limiting space is opposite to or staggered with the steel ball by moving the movable sleeve to realize the release or limiting of the steel ball, thereby realizing the detachable connection between the expansion and disassembly portion and the extension portion.

[0008] The utility model is further configured as follows: an inwardly recessed connecting groove is provided on the outer periphery of the extension portion, the connecting groove is communicated with the ejection groove, a spring is provided in the connecting groove, a guide block extending toward the connecting groove is provided on the inner side of the movable sleeve, one end of the spring is fixed to the connecting groove, and the other end is fixed to the guide block.

[0009] The utility model is further configured as follows: the disassembly head is provided with a slot matched with the screwdriver head.

[0010] The utility model is further configured as follows: the cross section of the disassembly head is a hexagonal inner corner, and the diameter of the disassembly head is greater than the diameter of the nut.

[0011] The utility model is further configured as follows: the cross section of the disassembly head is a hexagonal inner corner, and the diameter of the disassembly head is smaller than the diameter of the nut.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] A composite structure is formed by adding an extended disassembly part on the top of the nut, wherein the disassembly tool matched with the extended disassembly part is different from the disassembly tool matched with the nut, so that the screw can be twisted by different disassembly tools, thereby effectively solving the technical problem in the prior art that disassembly and assembly can only be performed by disassembly and assembly tools matched with the screw and nut, thereby reducing the restrictions on the disassembly and assembly tools and improving the convenience of disassembly and assembly, and the extended disassembly and assembly part and the nut are detachably connected, so that the restrictions on the disassembly and assembly tools can be further reduced by replacing different extended disassembly and assembly parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the explosion structure of the first embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the first embodiment of the utility model;

[0017] Figure 4 It is a schematic diagram of the overall structure of the second embodiment of the utility model. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] Embodiment 1

[0021] like Figures 1 to 3As shown, the present embodiment discloses a composite locking screw with multiple disassembly and assembly methods, including a nut 1, a screw rod 2 is connected to the bottom of the nut 1, an extension portion 3 extending upward is provided on the top of the nut 1, a mounting groove 31 is provided in the extension portion 3, an expansion disassembly and assembly portion 4 is provided in the installation groove 31, a receiving groove 41 is provided on the outer periphery of the expansion disassembly and assembly portion 4, the receiving groove 41 is multiple and evenly distributed along the circumference, a through ejection groove 32 is provided on the outer periphery of the extension portion 3, the ejection groove 32 can be opposite to the receiving groove 41, a steel ball 5 is provided in the ejection groove 32, a disassembly and assembly head 8 is provided at one end of the expansion disassembly and assembly portion 4 away from the nut 1, and a guide side wall 42 is gradually increased in height along the direction away from the nut 1 at the other end, and the guide side wall 42 is used to guide part of the steel ball 5 to the receiving groove 41, and a movable sleeve that can move along the axial direction is sleeved on the outer periphery of the extension portion 3 6. A limiting space 61 is provided in the movable sleeve 6. The movable sleeve 6 moves so that the limiting space 61 is opposite to or staggered with the steel ball 5 to realize the release or limiting of the steel ball 5, thereby realizing the detachable connection between the expansion disassembly part 4 and the extension part 3. The expansion disassembly part 4 is installed on the top of the nut 1 to form a composite structure, wherein the disassembly tool matched with the expansion disassembly part 4 is different from the disassembly tool matched with the nut 1. In this way, the screw can be twisted by different disassembly tools, that is, the disassembly tool matched with the nut 1 or the disassembly tool matched with the disassembly head 8 of the expansion disassembly part 4, thereby reducing the restriction on the disassembly tool and improving the convenience of disassembly. In addition, the expansion disassembly part 4 and the nut 1 are detachably connected, so that the restriction on the disassembly tool can be further reduced by replacing different expansion disassembly parts 4.

[0022] Therefore, when the expansion and disassembly part 4 is connected to the nut 1, the movable sleeve 6 is slid in the direction away from the expansion and disassembly part 4 so that the limiting space 61 can be opposite to the steel ball 5 to increase the moving space of the steel ball 5. At this time, by pushing the expansion and disassembly part 4 into the installation groove 31, during the pushing process, the steel ball 5 can gradually contact the lower end of the guide side wall 42 toward the height of the guide side wall 42, so that the steel ball 5 can be pushed into the ejection groove 32. As the expansion and disassembly part 4 continues to be pushed in, the steel ball 5 pushed into the ejection groove 32 can fall into the accommodating groove 41, thereby constituting a limit to the expansion and disassembly part 4, realizing the expansion and disassembly part 4. After the expansion and disassembly part 4 is installed, the movable sleeve 6 is subsequently reset so that the limiting space 61 can be staggered with the steel ball 5 to reduce the moving space of the steel ball 5, thereby limiting the steel ball 5 to prevent the steel ball 5 from escaping from the receiving groove 41 and affecting the stability of the installation of the expansion and disassembly part 4. Similarly, when the expansion and disassembly part 4 is disassembled and replaced, the movable sleeve 6 is slid so that the limiting space 61 can be opposite to the steel ball 5, and the steel ball 5 can be removed from the receiving groove 41 by pulling the expansion and disassembly part 4 outward. At this time, the expansion and disassembly part 4 can be disassembled and replaced, so that the disassembly and assembly of the expansion and disassembly part 4 can be made more convenient and quick;

[0023] When the screw is tightened by cooperating with the disassembly tool and the disassembly head 8 of the extended disassembly part 4, the steel ball 5 can abut against the accommodating groove 41, thereby preventing relative rotation between the extended disassembly part 4 and the disassembly tool, which would affect the tightening of the screw through the extended disassembly part 4.

[0024] In addition, a connecting groove 33 recessed inwardly is provided on the outer periphery of the extension portion 3, the connecting groove 33 is connected to the ejection groove 32, a spring 7 is provided in the connecting groove 33, and a guide block 62 extending toward the connecting groove 33 is provided on the inner side of the movable sleeve 6. One end of the spring 7 is fixed to the connecting groove 33, and the other end is fixed to the guide block 62. Therefore, when the movable sleeve 6 is slid in the direction away from the expansion and disassembly portion 4, the spring 7 can be squeezed and contracted, so that after the movable sleeve 6 is released, the spring 7 can drive the movable sleeve 6 to reset quickly, and the support of the movable sleeve 6 by the spring 7 can prevent the movable sleeve 6 from malfunctioning, so that the stability of the movable sleeve 6 limiting the steel ball 5 can be guaranteed, and the setting of the guide block 62, when the movable sleeve 6 is slid, the guide block 62 can form a sliding fit with the connecting groove 33, so as to guide the sliding of the movable sleeve 6 and prevent the movable sleeve 6 from deflecting during the sliding process.

[0025] In this embodiment, the specific structure of the disassembly head 8 is a slot 81 that matches the screwdriver head, so the screw can be rotated by turning it with a flat-head or cross-head screwdriver.

[0026] Embodiment 2

[0027] like Figure 4 As shown, the difference of this embodiment is that the cross-section of the disassembly head 8 is a hexagonal inner corner, and the diameter of the disassembly head 8 is larger than the diameter of the nut 1 or the diameter of the disassembly head 8 is smaller than the diameter of the nut 1, so that the screw can be rotated by tightening it with hexagonal wrenches of different specifications.

[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A composite locking screw with multiple disassembly and assembly methods, characterized in that: The nut comprises a nut, the bottom of which is connected to a screw rod, the top of which is provided with an extension portion extending upward, the extension portion is provided with a mounting groove, the mounting groove is provided with an expansion and disassembly portion, the outer periphery of the expansion and disassembly portion is provided with a receiving groove, the receiving grooves are multiple and evenly distributed along the circumference, the outer periphery of the extension portion is provided with a penetrating ejection groove, the ejection groove can be opposite to the receiving groove, a steel ball is provided in the ejection groove, the expansion and disassembly portion is located at one end away from the nut and is provided with a disassembly head, and the other end increases in height in a direction away from the nut to form a guide side wall, the guide side wall is used to guide the steel ball part to the receiving groove, the outer periphery of the extension portion is provided with a movable sleeve that can be moved in an axial direction, a limiting space is provided in the movable sleeve, and the movable sleeve moves to make the limiting space opposite to or staggered with the steel ball to realize the release or limitation of the steel ball, thereby realizing the detachable connection between the expansion and disassembly portion and the extension portion.

2. A composite locking screw with multiple disassembly and assembly methods according to claim 1, characterized in that: An inwardly recessed connecting groove is provided on the outer periphery of the extension part, the connecting groove is communicated with the ejection groove, a spring is provided in the connecting groove, a guide block extending toward the connecting groove is provided on the inner side of the movable sleeve, one end of the spring is fixed to the connecting groove, and the other end is fixed to the guide block.

3. A composite locking screw with multiple disassembly and assembly methods according to claim 1, characterized in that: The disassembly and assembly head is provided with a slot matched with the screwdriver head.

4. A composite locking screw with multiple disassembly and assembly methods according to claim 1, characterized in that: The cross section of the disassembly head is a hexagonal socket, and the diameter of the disassembly head is larger than the diameter of the nut.

5. The composite locking screw with multiple disassembly and assembly methods according to claim 1, characterized in that: The cross section of the disassembly head is a hexagonal socket, and the diameter of the disassembly head is smaller than the diameter of the nut.

Images