Detachable screw locking structure of core tube
The rotating snap-fit connection design, combined with the insertion component and telescopic spring, enables quick assembly and disassembly of screws and secure connection, solving the problems of time-consuming and easy loosening of traditional screws, and improving assembly and disassembly efficiency and maintenance convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-27
AI Technical Summary
Existing screw-locking structures are time-consuming to disassemble and prone to losing small parts. They also loosen frequently under vibration, resulting in high maintenance costs, complex structures, and high manufacturing costs.
It adopts a rotating snap-fit connection design, which combines the circular block of the insertion component, the lock cylinder and the telescopic spring to achieve quick locking and disassembly, and ensures a stable connection through mechanical snap-fit and elastic clamping force.
It shortens disassembly and assembly time, improves vibration resistance, reduces maintenance costs, and allows for individual replacement of damaged parts. It is suitable for equipment panels and access doors that are frequently disassembled and reassembled.
Smart Images

Figure CN224048880U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to detachable lock screw technical field especially relates to a core cylinder detachable lock screw structure. BACKGROUND
[0002] In the field of mechanical manufacturing and equipment maintenance, lock screw structure is a widely used connection and fixing method. Core cylinder detachable lock screw structure is a connection solution specially designed for application scenarios that require frequent installation and disassembly. This structure usually involves one or more mechanisms that can be quickly and conveniently locked and unlocked, making maintenance, repair and replacement of components more efficient.
[0003] However, in the prior art, the traditional lock screw structure has the following technical defects: most of them use single thread connection method, which requires completely unscrewing the screw when disassembling, which is time-consuming and easy to lose small parts. Ordinary screws are prone to looseness in a vibrating environment and need to be checked and tightened frequently. When the lock core is damaged, the entire structure needs to be replaced, resulting in high maintenance cost, complex structure and high manufacturing cost. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the problems existing in the prior art and provides a core cylinder detachable lock screw structure.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a core cylinder detachable lock screw structure, comprising a fixed component, a connecting component and an insertion component; the fixed component comprises a fixed plate, two groups of connecting pieces are arranged on one side of the fixed plate, a lock block main body is installed on one side of the fixed plate, a connecting block is arranged on one side of the lock block main body, and an arc groove is formed in the inside of the connecting block; the connecting component comprises a connecting plate, a recess is formed on one side of the connecting plate, two convex grooves are formed on one side of the recess, an inner arc groove is formed on one side of the two convex grooves, and two inner embedded grooves are formed in the inside of the inner arc groove; the insertion component comprises a handle, a circular block is installed on one side of the handle, a lock core is arranged below the handle away from one end, two convex blocks are installed on the outer surface wall of the lock core, two telescopic rods are installed on the lower surface of the lock core, two telescopic springs are installed on the lower surface of the lock core, and a fixed block is installed on the outer surface wall of the two telescopic springs.
[0006] Preferably, the two groups of connecting pieces are threadedly connected with the fixed plate, and the lock block main body is fixedly connected with the fixed plate.
[0007] Preferably, the connecting block is fixedly connected with the lock block main body, the two convex grooves are in communication with the recess, and the two convex grooves are in communication with the inner arc groove.
[0008] Preferably, the two inner embedded grooves are in communication with the inner arc groove, the circular block is fixedly installed with the handle, and the two convex blocks are fixedly installed with the lock core.
[0009] Preferably, the two telescopic rods are connected with two telescopic spring covers, the fixed block is fixedly installed with the two telescopic springs and the two telescopic rods, and one side of the lock cylinder is provided with a lock eye.
[0010] Preferably, the circular block is connected with the circular arc groove in the connecting block in a clamping mode, the two protrusions on the lock cylinder are embeddedly connected with the two protrusion grooves and the recess groove provided on the connecting plate, and the two protrusions are slidably connected with the convex arc grooves.
[0011] Preferably, the two protrusions are connected with the two embedded grooves in a clamping mode, the fixed block is attached to the fixed plate, the connecting plate is attached to the fixed plate, and the lock block body is fixedly connected with the connecting plate.
[0012] Compared with the prior art, the utility model has the advantages and positive effects that:
[0013] 1、 in the utility model, the circular block of the insertion assembly is inserted into the circular arc groove of the connecting block, the protrusion of the lock cylinder enters along the recess groove of the connecting plate, the handle is rotated, the protrusion is slid into the embedded groove along the inner arc groove to complete the initial locking, the telescopic spring pushes the fixed block through the telescopic rod to press the fixed plate, the elastic pressing force is formed, the cooperation of the protrusion and the embedded groove realizes the mechanical locking, and the continuous pressure of the telescopic spring ensures the stability of the connection.
[0014] 2、 in the utility model, the fixed block is in full contact with the fixed plate to disperse the stress, the handle is reversely rotated, the protrusion is retreated from the embedded groove to the inner arc groove, the handle is lifted upward to take out the insertion assembly, and the locking can be completed by rotating, so that the operation time is shortened, the mechanical buckle and the elastic pressing are combined, the anti-vibration performance is improved, a single component can be individually replaced, the maintenance cost is reduced, and the structure is particularly suitable for occasions such as equipment panels and maintenance doors that need to be frequently disassembled, while the stability of the connection is ensured, the disassembly and assembly efficiency and the maintenance convenience are greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 An overall structure schematic view of the detachable lock screw structure of the core barrel is provided for the utility model;
[0016] Figure 2 A structure schematic view of a fixed assembly of the detachable lock screw structure of the core barrel is provided for the utility model;
[0017] Figure 3 A structure schematic view of a connecting assembly of the detachable lock screw structure of the core barrel is provided for the utility model;
[0018] Figure 4 A structure schematic view of an insertion assembly of the detachable lock screw structure of the core barrel is provided for the utility model.
[0019] Legend: 1. Fixing component; 101. Fixing plate; 102. Connector; 103. Lock block body; 104. Connecting block; 105. Arc groove; 2. Connecting component; 201. Connecting plate; 202. Groove; 203. Raised groove; 204. Inner arc groove; 205. Embedded groove; 3. Insertion component; 301. Handle; 302. Circular block; 303. Lock cylinder; 304. Raised block; 305. Telescopic rod; 306. Telescopic spring; 307. Fixing block; 308. Keyhole. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1, as Figures 1-4 As shown, this utility model provides a detachable screw core structure, including a fixing component 1, a connecting component 2, and an insertion component 3. The fixing component 1 includes a fixing plate 101, with two sets of connectors 102 on one side of the fixing plate 101, a locking block body 103 mounted on one side of the fixing plate 101, and a connecting block 104 on one side of the locking block body 103. The connecting block 104 has an arc groove 105 inside. The connecting component 2 includes a connecting plate 201, with a groove 202 on one side of the connecting plate 201, and two... The two protrusions 203 have an inner arc groove 204 on one side, and two embedded grooves 205 are formed inside the inner arc groove 204; the insertion component 3 includes a handle 301, a circular block 302 is installed on one side of the handle 301, a lock cylinder 303 is provided below the handle 301 away from one end, two protrusions 304 are installed on the outer wall of the lock cylinder 303, two telescopic rods 305 are installed on the lower surface of the lock cylinder 303, two telescopic springs 306 are installed on the lower surface of the lock cylinder 303, and fixing blocks 307 are installed on the outer wall of the two telescopic springs 306.
[0023] The overall effect of Embodiment 1 is that, by adopting an innovative rotary snap-fit connection design, the protrusion 304 of the lock cylinder 303 cooperates with the protrusion 203 and inner arc groove 204 of the connecting plate 201 to achieve 90° rotation for quick locking, shortening the disassembly and assembly time. The telescopic spring 306 and telescopic rod 305 provide continuous clamping force to ensure a stable connection and improve vibration resistance. The secondary locking of the protrusion 304 and the inner groove 205 forms a double insurance to prevent accidental loosening.
[0024] As shown in Figures 1-4 Two connecting pieces 102 are threadedly connected with the fixed plate 101, the lock block body 103 is fixedly connected with the fixed plate 101, the connecting block 104 is fixedly connected with the lock block body 103, two convex grooves 203 are in communication with the concave groove 202, two convex grooves 203 are in communication with the inner arc groove 204, two inner embedded grooves 205 are in communication with the inner arc groove 204, the circular block 302 is fixedly installed with the handle 301, two convex blocks 304 are fixedly installed with the lock cylinder 303, two telescopic rods 305 are sleeved with two telescopic springs 306, the fixed block 307 is fixedly installed with two telescopic springs 306 and two telescopic rods 305, a lock eye 308 is formed on one side of the lock cylinder 303, the circular block 302 is clamped and connected with the circular arc groove 105 in the connecting block 104, two convex blocks 304 on the lock cylinder 303 are embedded and connected with two convex grooves 203 and the concave groove 202 formed on the connecting plate 201, two convex blocks 304 are slidingly connected with the inner arc groove 204, two convex blocks 304 are clamped and connected with two inner embedded grooves 205, the fixed block 307 is attached to the fixed plate 101, the connecting plate 201 is attached to the fixed plate 101, and the lock block body 103 is fixedly connected with the connecting plate 201.
[0025] The effect achieved by the whole embodiment 2 is that the telescopic spring 306 can automatically adjust the pressing force according to different installation gaps, the attachment of the fixed block 307 to the fixed plate 101 ensures uniform stress, the cooperation of the circular arc groove 105 and the circular block 302 allows angle deviation adjustment, the standardized connecting piece 102 design supports multiple installation scenarios, the lock eye 308 can adapt to different specifications of screwdriver heads, the modular design makes maintenance of individual components more cost-effective.
[0026] Working principle: the core cylinder detachable lock screw structure through the innovation of three components work together, realize quick disassembly and stable connection, the round block 302 of inserting assembly 3 is inserted into the circular arc groove 105 of connecting block 104, the protruding block 304 of lock core 303 enters along the recess 202 of connecting plate 201, rotate handle 301, make protruding block 304 slide into inlay groove 205 along inner arc groove 204 and complete primary locking, telescopic spring 306 pushes fixed block 307 through telescopic rod 305 and presses fixed plate 101, form elastic compression force, the cooperation of protruding block 304 and inlay groove 205 realizes mechanical locking, the continuous pressure of telescopic spring 306 ensures the stability of connection, the overall contact of fixed block 307 and fixed plate 101 disperses stress, reverse rotation handle 301, protruding block 304 retreats from inlay groove 205 to inner arc groove 204, and inserting assembly 3 can be taken out by lifting handle 301 upwards, 90 degrees rotation can complete locking, the operation time is shortened, mechanical buckle adds elastic compression, the anti-vibration performance is improved, single component damage can be replaced individually, the maintenance cost is reduced, the structure is especially suitable for the equipment panel, access door and the like occasions needing frequent disassembly, while guaranteeing the stability of connection, the disassembly efficiency and maintenance convenience are greatly improved.
[0027] The above is only the preferred embodiment of the utility model, and is not other forms of the utility model, any skilled person in the art may utilize the disclosed technical content to change or modify equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the utility model without departing from the technical scheme content of the utility model still belongs to the protection scope of the utility model technical scheme.
Claims
1. A core cylinder detachable lock screw structure characterized by, It include fixed component (1), connecting component (2) and insert component (3); The fixed component (1) includes a fixed plate (101), two groups of connecting pieces (102) are arranged on one side of the fixed plate (101), a lock block body (103) is installed on one side of the fixed plate (101), a connecting block (104) is arranged on one side of the lock block body (103), and a circular arc groove (105) is formed in the connecting block (104). The connecting component (2) includes a connecting plate (201), a recess (202) is formed in one side of the connecting plate (201), two convex grooves (203) are formed in one side of the recess (202), an inner arc groove (204) is formed in one side of the two convex grooves (203), and two inner embedded grooves (205) are formed in the inner arc groove (204). The insert component (3) includes a handle (301), a circular block (302) is installed on one side of the handle (301), a lock cylinder (303) is arranged below a distal end of the handle (301), two convex blocks (304) are installed on the outer surface wall of the lock cylinder (303), two telescopic rods (305) are installed on the lower surface of the lock cylinder (303), two telescopic springs (306) are installed on the lower surface of the lock cylinder (303), and two fixed blocks (307) are installed on the outer surface wall of the two telescopic springs (306).
2. The core barrel removable locking screw structure of claim 1, wherein: Two groups of connecting pieces (102) are in threaded connection with the fixed plate (101), and the lock block body (103) is in fixed connection with the fixed plate (101).
3. The core barrel removable locking screw structure of claim 2, wherein: The connecting block (104) is in fixed connection with the lock block body (103), the two convex grooves (203) are in communication with the recess (202), and the two convex grooves (203) are in communication with the inner arc groove (204).
4. The core barrel removable locking screw structure of claim 1, wherein: The two inner embedded grooves (205) are in communication with the inner arc groove (204), the circular block (302) is in fixed installation with the handle (301), and the two convex blocks (304) are in fixed installation with the lock cylinder (303).
5. The core barrel removable locking screw structure of claim 4, wherein: The two telescopic rods (305) are in sleeve connection with the two telescopic springs (306), the fixed block (307) is in fixed installation with the two telescopic springs (306) and the two telescopic rods (305), and a keyhole (308) is formed in one side of the lock cylinder (303).
6. The core barrel removable locking screw structure of claim 5, wherein: The circular block (302) is in clamping connection with the circular arc groove (105) in the connecting block (104), the two convex blocks (304) on the lock cylinder (303) are in embedded connection with the two convex grooves (203) and the recess (202) formed in the connecting plate (201), and the two convex blocks (304) are in sliding connection with the inner arc groove (204).
7. The core barrel removable locking screw structure of claim 6, wherein: The two convex blocks (304) are in clamping connection with the two inner embedded grooves (205), the fixed block (307) is in abutting connection with the fixed plate (101), the connecting plate (201) is in abutting connection with the fixed plate (101), and the lock block body (103) is in fixed connection with the connecting plate (201).