Expansion screw easy to disassemble

Abstract

The expansion screw comprises a shell, the outer surface of the shell is fixedly connected with a limiting ring, the outer surface of the shell is fixedly connected with a dismounting ring, a nut is arranged on the upper portion of the shell, the bottom face of the shell is fixedly connected with an expansion plate, the interior of the shell is slidably connected with a screw rod, and the outer surface of the screw rod is fixedly connected with a nut. The outer surface of the screw rod is provided with an external thread, and the bottom end of the screw rod is fixedly connected with an expansion block. The shell, the limiting ring, the dismounting ring and the dismounting groove are arranged to form a dismounting mechanism for the object, the convenience during dismounting is improved, an operator can quickly dismount the object conveniently, and therefore the problems that the wall needs to be damaged, and the overall attractiveness of the wall is affected are solved, and the anti-skid protrusions and the protection ring are arranged, so that the anti-skid effect is achieved. The friction force between the pliers and the dismounting ring and the distance between the dismounting groove and the wall body are increased, the auxiliary effect is achieved, and the stability of workers during dismounting the pliers is improved.

Description

Technical Field

[0001] The present application relates to the field of hardware products, and in particular to an easily disassembled expansion screw. Background Art

[0002] Expansion screws are a special threaded connector used to fix duct supports, hangers, and brackets on walls, floors, and columns. Expansion screws, generally referred to as metal expansion screws, are composed of components such as screws and expansion tubes. The fixation of expansion screws uses the wedge-shaped slope to promote expansion and produce friction and grip force to achieve the fixing effect.

[0003] After the expansion screws are connected to the wall, when there is installation misalignment and they need to be disassembled, the staff usually use a drill to destroy the wall to remove them, or directly use a cutting device to cut the protruding part of the expansion screws, causing damage to the wall and affecting the aesthetics of the wall. Utility Model Content

[0004] The purpose of the utility model is to provide an easily disassembled expansion screw to solve the problems raised in the above background technology.

[0005] The present application embodiment adopts the following technical solutions:

[0006] An easily disassembled expansion screw comprises an outer shell, a limiting ring is fixedly connected to the outer surface of the outer shell, a disassembly ring is fixedly connected to the outer surface of the outer shell, a nut is provided on the top of the outer shell, an expansion plate is fixedly connected to the bottom surface of the outer shell, a screw is slidably connected to the inside of the outer shell, an external thread is provided on the outer surface of the screw, an expansion block is fixedly connected to the bottom end of the screw, and four disassembly grooves are provided on the bottom surface of the limiting ring.

[0007] Preferably, the bottom surface of the disassembly ring is fixedly connected with anti-skid protrusions arranged at equal distances, and the outer surface of the nut is provided with anti-skid patterns.

[0008] Preferably, a protective ring is fixedly connected to the outer surface of the shell, and the material of the protective ring is silicone.

[0009] Preferably, a distance bar is fixedly connected to the outer surface of the shell, and an indicator arrow is fixedly connected to the upper surface of the nut.

[0010] Preferably, an identification block is fixedly connected to the outer surface of the nut.

[0011] Preferably, the outer surface of the identification block is painted with a LOGO.

[0012] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0013] The utility model forms a disassembly mechanism for the article through the shell, the limit ring, the disassembly ring and the disassembly groove, which increases the convenience during disassembly and is convenient for operators to disassemble it quickly, thereby avoiding the need to damage the wall and affecting the overall aesthetics of the wall. The anti-slip protrusion and the protective ring increase the friction between the pliers and the disassembly ring and the distance between the disassembly groove and the wall, playing an auxiliary role and improving the stability of operators when disassembling it. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 The figure is a front view structural diagram of the easily disassembled expansion screw of the utility model;

[0016] Figure 2 The figure is a rear structural diagram of the easily disassembled expansion screw of the utility model;

[0017] Figure 3 The following is a schematic diagram of the bottom view of the structure of the easily disassembled expansion screw of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the front section structure of the easily disassembled expansion screw.

[0019] In the figure: 1. outer shell; 2. limit ring; 3. disassembly ring; 4. nut; 5. expansion plate; 6. screw; 7. external thread; 8. expansion block; 9. disassembly groove; 10. anti-slip protrusion; 11. protective ring; 12. distance bar; 13. anti-slip pattern; 14. identification block; 15. indicator arrow. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0021] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0022] See also Figure 1-4 , the utility model provides a technical solution for easily disassembled expansion screws:

[0023] An easily disassembled expansion screw comprises a shell 1, a limiting ring 2 is fixedly connected to the outer surface of the shell 1, a disassembly ring 3 is fixedly connected to the outer surface of the shell 1, a nut 4 is arranged on the top of the shell 1, an expansion plate 5 is fixedly connected to the bottom surface of the shell 1, a screw rod 6 is slidably connected to the inside of the shell 1, an external thread 7 is provided on the outer surface of the screw rod 6, an expansion block 8 is fixedly connected to the bottom end of the screw 6, and four disassembly grooves 9 are provided on the bottom surface of the limiting ring 2; specifically, by providing the limiting ring 2 and the disassembly ring 3, a disassembly space is provided for the shell 1, so that the operator can disassemble it by simple tools, reducing the burden of the operator needing to carry multiple tools;

[0024] In this embodiment, the bottom surface of the disassembly ring 3 is fixedly connected with anti-skid protrusions 10 arranged at equal distances, and the outer surface of the nut 4 is provided with anti-skid patterns 13; the outer surface of the housing 1 is fixedly connected with a protective ring 11, and the material of the protective ring 11 is silicone; specifically, the anti-skid protrusions 10 provided can increase the friction between the pliers and the disassembly ring 3, and the anti-skid patterns 13 provided on the nut 4 are used to increase the friction on the outer surface of the nut 4 to avoid sliding when the nut 4 is screwed, and the protective ring 11 provided can avoid wear of the groove between the limit ring 2 and the wall, and the silicone material used by the protective ring 11 is relatively soft and has the advantages of high adsorption performance, good thermal stability, stable chemical properties, and high mechanical strength;

[0025] In this embodiment, a distance bar 12 is fixedly connected to the outer surface of the shell 1, and an indicator arrow 15 is fixedly connected to the upper surface of the nut 4; an identification block 14 is fixedly connected to the outer surface of the nut 4; and a LOGO is painted on the outer surface of the identification block 14; specifically, by setting the distance bar 12, it is judged by observing the distance bar 12 whether the hole punched on the wall is compatible with the article, and by setting the indicator arrow 15, it is convenient for the operator to identify the direction of tightening the nut 4, and by setting the identification block 14, the aesthetics of the article can be increased.

[0026] Working principle: When the easily disassembled expansion screw is used, the user first twists the nut 4 to disengage it from the external thread 7 of the screw rod 6, then inserts a flat-blade screwdriver into the disassembly groove 9 of the limit ring 2, and pries the outer shell 1 outward. At the same time, the outer surface of the disassembly ring 3 is clamped with pliers. The outer shell 1 will be pulled outward under force, and the expansion plate 5 will be forced to restore the deformed part, thereby separating the outer shell 1 from the screw rod 6 and the expansion block 8. Finally, the screw 6 is pulled out to complete the disassembly.

[0027] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0028] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An easily disassembled expansion screw, comprising a housing (1), characterized in that: The outer surface of the shell (1) is fixedly connected to a limit ring (2), the outer surface of the shell (1) is fixedly connected to a disassembly ring (3), a nut (4) is provided on the top of the shell (1), an expansion plate (5) is fixedly connected to the bottom surface of the shell (1), a screw rod (6) is slidably connected to the inside of the shell (1), an outer surface of the screw rod (6) is provided with an external thread (7), an expansion block (8) is fixedly connected to the bottom end of the screw rod (6), and four disassembly grooves (9) are provided on the bottom surface of the limit ring (2).

2. The easily detachable expansion screw according to claim 1, characterized in that: The bottom surface of the disassembly ring (3) is fixedly connected with anti-skid protrusions (10) arranged at equal distances, and the outer surface of the nut (4) is provided with anti-skid patterns (13).

3. The easily disassembled expansion screw according to claim 1, characterized in that: A protective ring (11) is fixedly connected to the outer surface of the housing (1), and the protective ring (11) is made of silicone.

4. The easily disassembled expansion screw according to claim 1, characterized in that: A distance bar (12) is fixedly connected to the outer surface of the housing (1), and an indication arrow (15) is fixedly connected to the upper surface of the nut (4).

5. The easily disassembled expansion screw according to claim 1, characterized in that: An identification block (14) is fixedly connected to the outer surface of the nut (4).

6. The easily disassembled expansion screw according to claim 5, characterized in that: The outer surface of the identification block (14) is painted with a LOGO.

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