Hardware fastener convenient to install
By designing easy-to-install hardware fasteners, quick connection is achieved through the rotational movement of the support arm and screw, solving the problems of troublesome installation and damage to parts caused by existing fasteners, and improving installation efficiency.
Patent Information
- Application Number
- CN202520477235.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Existing fasteners are cumbersome to install, easily damage the surface of parts, and require bidirectional operation, which reduces installation efficiency.
A hardware fastener that is easy to install is designed. The first and second arms are connected to the screw through the hinged ends. The rotation of the screw makes the fastening ends of the arms move closer or further apart, achieving quick connection. The limiting structure prevents damage to the parts.
It enables rapid installation without damaging the surface of parts and without requiring bidirectional operation, thus improving installation efficiency.
Smart Images
Figure CN223767845U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastener technology, and in particular to a hardware fastener that is easy to install. Background Technology
[0002] Fasteners are a wide range of mechanical parts used for fastening connections. They are used in a broad range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, mold making, and hydraulics. Various types of fasteners can be found on all kinds of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters, and supplies, making them the most widely used basic mechanical components. They are characterized by a large variety of types and specifications, diverse performance and applications, and a high degree of standardization, serialization, and generalization. Therefore, some people refer to fasteners with existing national standards as standard fasteners, or simply standard parts.
[0003] When installing existing fasteners, the bolt is first passed through the through hole on the part to be connected, and the nut is screwed into the bolt by hand or wrench until the nut contacts the surface of the part. This is not only troublesome to install, but also creates threaded holes on the part to be connected, damaging the part and damaging the surface of the part during connection. In addition, it is easy to slip during installation, and the bolt needs to be operated in both directions, which cannot be installed quickly and reduces installation efficiency.
[0004] Therefore, existing technologies need to be improved and enhanced. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hardware fastener that is easy to install without damaging the parts to be connected.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] An easy-to-install hardware fastener includes a first arm, a second arm, and a screw. The hinged end of the second arm is hinged to a free end near the first arm. The screw passes through a fixing member on the free end of the first arm and is threadedly connected to a connecting block disposed on the second arm. The relative rotational movement between the screw and the connecting block causes the fastening ends of the first arm and the fastening ends of the second arm to move closer or further apart.
[0008] As a further embodiment of this utility model, a first fastener is provided at the fastening end of the first support arm, and a second fastener is provided at the fastening end of the second support arm. The first fastener and the second fastener move closer to or further away from each other under the action of the screw and the connecting block.
[0009] As a further scheme of the utility model, the first fastener is provided with a plurality of first protrusions on the surface facing the second fastener, and the second fastener is provided with a plurality of second protrusions on the surface facing the first fastener.
[0010] As a further scheme of the utility model, the first protrusions and the second protrusions are both trapezoidal protrusions.
[0011] As a further scheme of the utility model, the connecting block is provided with a limiting cavity, a limiting block capable of linear reciprocating motion is arranged in the limiting cavity, a limiting clamping tooth is arranged on the surface of the limiting block facing the screw rod, a clamping tooth matched with the limiting clamping tooth is arranged on the surface of the screw rod facing the limiting block, a clamping ring groove is arranged on the inner wall of the limiting cavity on one side of the limiting block relative to the screw rod, a clamping plate is arranged in the clamping ring groove, and the clamping plate is connected with the limiting block through a spring.
[0012] As a further scheme of the utility model, the clamping tooth and the limiting clamping tooth are both sawtooth structures in the form of a ring, and the inclined surfaces of the sawteeth are arranged along the counterclockwise rotation direction of the connecting block.
[0013] As a further scheme of the utility model, the limiting cavity and the limiting block are both square structures, the width of the limiting cavity is greater than the width of the limiting block and less than the length of the diagonal line of the limiting block.
[0014] As a further scheme of the utility model, the clamping plate comprises a first semicircular plate and a second semicircular plate, the hinged end of the first semicircular plate is hinged to the hinged end of the second semicircular plate, the diameter of the clamping plate is equal to the diameter of the clamping ring groove and greater than the diagonal length of the limiting cavity, and a compression spring for supporting the first semicircular plate and the second semicircular plate apart is arranged between the middle portions of the first semicircular plate and the second semicircular plate.
[0015] As a further scheme of the utility model, a first handle is arranged on the outer surface of the first semicircular plate, and a second handle is arranged on the outer surface of the second semicircular plate.
[0016] As a further scheme of the utility model, a through hole is arranged on the free end of the screw rod in the radial direction.
[0017] Compared with the prior art, the utility model has the beneficial effects that:
[0018] Due to the aforementioned structural design, where the hinged end of the second arm is hinged to the free end near the first arm, and the screw passes through a fixing member on the free end of the first arm and is threadedly connected to a connecting block on the second arm, the relative rotational movement between the screw and the connecting block causes the fastening ends of the first and second arms to move closer or further apart. During installation, simply place the workpiece to be connected between the fastening ends of the first and second arms and rotate the screw to complete the connection of the workpiece. This avoids damaging the workpiece and eliminates the need for bidirectional operation, making installation simple, quick, and efficient. Attached Figure Description
[0019] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0020] Appendix Figure 2 This is a side view of an embodiment of the present utility model;
[0021] Appendix Figure 3 This is a cross-sectional view of the screw and connecting block in an embodiment of the present utility model;
[0022] Appendix Figure 4 This is a schematic diagram of the card plate in an embodiment of the present utility model.
[0023] The labels in the diagram are as follows:
[0024] 100 - First arm, 200 - Second arm, 300 - Screw;
[0025] 101-Fixed component, 102-First fastener;
[0026] 201 - Connecting block; 202 - Second fastener;
[0027] 1021 - First protrusion;
[0028] 2021 - Second bulge;
[0029] 2011-Limiting cavity, 2012-Limiting block, 2013-Snap ring groove, 2014-Snap plate, 2015-Spring;
[0030] 2012a - Limiting tooth;
[0031] 301 - Clamping tooth, 302 - Through hole;
[0032] 2014a - First semicircular plate, 2014b - Second semicircular plate, 2014c - Compression spring, 2014d - First handle, 2014e - Second handle. Detailed Implementation
[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0034] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0038] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0039] Example:
[0040] like Figure 1 and Figure 2 As shown, this application discloses an easy-to-install hardware fastener, comprising a first support arm 100, a second support arm 200, and a screw 300. The first support arm 100 includes two parallel support arm plates, each comprising three parts, with adjacent parts forming an included angle. Connecting pins are provided at both ends of the two support arm plates and at the connection points of adjacent parts. The second support arm 200 includes two parallel support arm plates, each comprising two parts, with the two parts forming an included angle. Connecting pins are provided at both ends of the two support arm plates and at the connection points of the two parts. The hinged end of the second support arm 200 is hinged to the free end near the first support arm 100. The screw 300 passes through a fixing member 101 on the free end of the first support arm 100 and... A connecting block 201 is threaded onto the second support arm 200. The relative rotational movement between the screw 300 and the connecting block 201 causes the fastening end of the first support arm 100 and the fastening end of the second support arm 200 to move closer or further apart. Through the above structural design, the screw passes through a fixing member on the free end of the first support arm and is threaded onto a connecting block on the second support arm. When the screw rotates counterclockwise, the connecting member moves linearly and drives the fastening end of the second support arm to move closer to the fastening end of the first support arm, thereby realizing the connection of the workpieces to be connected. During installation, the workpieces to be connected only need to be placed between the fastening ends of the first and second supports arms, and the screw can be rotated to complete the connection of the workpieces. That is, the workpieces will not be damaged and no bidirectional operation is required. The installation is simple and fast, and the installation efficiency is improved.
[0041] Specifically, the fastening end of the first support arm 100 is provided with a first fastener 102, and the fastening end of the second support arm 200 is provided with a second fastener 202. The first fastener 102 and the second fastener 202 move closer or further apart under the action of the screw 300 and the connecting block 201. The surface of the first fastener 102 facing the second fastener 202 is provided with a plurality of first protrusions 1021, and the surface of the second fastener 202 facing the first fastener 102 is provided with a plurality of second protrusions 2021. By providing the first fastener 102 and the second fastener 202 at the fastening ends of the first support arm 100 and the second support arm 200 respectively, damage to the surface of the workpiece to be connected is prevented, and the friction between the fastening ends of the first support arm 100 and the second support arm 200 and the workpiece to be connected is increased. In specific implementation, both the first protrusion 1021 and the second protrusion 2021 are trapezoidal protrusions.
[0042] like Figure 3 and Figure 4 As shown, the connecting block 201 is provided with a limiting cavity 2011, and a limiting block 2012 capable of linear reciprocating motion is provided inside the limiting cavity 2011. A limiting tooth 2012a is provided on the surface of the limiting block 2012 facing the screw 300, and a retaining tooth 301 that mates with the limiting tooth 2012a is provided on the surface of the screw 300 facing the limiting block 2012. A retaining ring groove 2013 is provided on the inner wall of the limiting cavity 2011 on the side of the limiting block 2012 opposite to the screw 300. A retaining plate 2014 is provided inside the retaining ring groove 2013, and the retaining plate 2014 is connected to the limiting block 2012 by a spring 2015. Both the retaining tooth 301 and the limiting tooth 2012a are circular sawtooth structures, and the sawtooth... The inclined surface is set along the counterclockwise rotation direction of the connecting block 201; both the limiting cavity 2011 and the limiting block 2012 are square structures, the width of the limiting cavity 2011 is greater than the width of the limiting block 2012, and less than the length of the diagonal of the limiting block; through the above structural design, the limiting block 2012 moves linearly back and forth along the limiting cavity 2011. When the screw 300 rotates counterclockwise, the first arm and the second arm are locked. When the screw rotates clockwise, the vertical surfaces of the locking teeth 301 of the screw 300 and the limiting locking teeth 2012a are connected, and the locking teeth 301 and the limiting locking teeth 2012a are locked. Since the square limiting block cannot rotate in the square limiting cavity 2011, the connecting block is locked in a tight position, realizing the anti-retraction function of the connecting block 201.
[0043] Specifically, the card plate 2014 includes a first semi-circular plate 2014a and a second semi-circular plate 2014b. The hinged end of the first semi-circular plate 2014a is hinged to the hinged end of the second semi-circular plate 2014b. The diameter of the card plate 2014 is equal to the diameter of the retaining ring groove 2013 and is larger than the diagonal length of the limiting cavity 2011. A compression spring 2014c is provided between the middle portions of the first semi-circular plate 2014a and the second semi-circular plate 2014b to separate the two. The outer surface of the first semicircular plate 2014a is provided with a first handle 2014d, and the outer surface of the second semicircular plate 2014b is provided with a second handle 2014e. When it is necessary to open this application, the first and second semicircular plates are closed and tightened by the first and second handles, thereby reducing the diameter of the card plate and removing the card plate from the retaining ring groove. Since the limiting block can move linearly along the limiting cavity, the limiting block can be removed at this time. Then, by rotating the screw clockwise, the application can be opened.
[0044] As a preferred embodiment, the free end of the screw 300 is provided with a through hole 302 in the radial direction. When the screw needs to be rotated, a tool with a diameter smaller than the diameter of the through hole can be inserted into it to easily rotate the screw.
[0045] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure and quick and convenient installation.
[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above 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.
[0047] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A hardware fastener for easy installation, characterized by: The utility model relates to a kind of telescopic arms, including a first arm (100), a second arm (200) and a screw rod (300), the hinged end of the second arm (200) is hinged near the free end of the first arm (100), the screw rod (300) is screwed with the connecting block (201) being arranged on the second arm (200) through the fixed piece (101) on the free end of the first arm (100), relative rotation between the screw rod (300) and the connecting block (201) makes the fastening end of the first arm (100) and the fastening end of the second arm (200) approach each other or away from each other.
2. The easy-to-install fastener of claim 1, wherein: The fastening end of the first arm (100) is provided with a first fastener (102), and the fastening end of the second arm (200) is provided with a second fastener (202). The first fastener (102) and the second fastener (202) approach or move away from each other under the action of the screw rod (300) and the connecting block (201).
3. The easy-to-install fastener of claim 2, wherein: The surface of the first fastener (102) facing the second fastener (202) is provided with a plurality of first protrusions (1021), and the surface of the second fastener (202) facing the first fastener (102) is provided with a plurality of second protrusions (2021).
4. The easy-to-install fastener of claim 3, wherein: The first protrusions (1021) and the second protrusions (2021) are trapezoidal protrusions.
5. The easy-to-install fastener of claim 4, wherein: The connecting block (201) is provided with a limiting cavity (2011), and a limiting block (2012) capable of linear reciprocating motion is arranged in the limiting cavity (2011). The surface of the limiting block (2012) facing the screw rod (300) is provided with a limiting clamping tooth (2012a), and the surface of the screw rod (300) facing the limiting block (2012) is provided with a clamping tooth (301) matched with the limiting clamping tooth (2012a). A clamping ring groove (2013) is arranged on the inner wall of the limiting cavity (2011) on one side of the limiting block (2012), and a clamping plate (2014) is arranged in the clamping ring groove (2013). The clamping plate (2014) is connected with the limiting block (2012) by a spring (2015).
6. The easy-to-install fastener of claim 5, wherein: The clamping tooth (301) and the limiting clamping tooth (2012a) are both sawtooth structures in the form of a circular ring, and the inclined surfaces of the sawteeth are arranged in the counterclockwise rotation direction of the connecting block (201).
7. The easy-to-install fastener of claim 6, wherein: The limiting cavity (2011) and the limiting block (2012) are both square structures. The width of the limiting cavity (2011) is greater than the width of the limiting block (2012) and less than the length of the diagonal line of the limiting block (2012).
8. The easy-to-install fastener of claim 7, wherein: The clamping plate (2014) comprises a first semicircular plate (2014a) and a second semicircular plate (2014b), the hinged end of the first semicircular plate (2014a) is hinged with the hinged end of the second semicircular plate (2014b), the diameter of the clamping plate (2014) is equal to the diameter of the clamping ring groove (2013) and is greater than the diagonal length of the limiting cavity (2011); a compression spring (2014c) for supporting the first semicircular plate (2014a) and the second semicircular plate (2014b) apart is arranged between the middle portions of the first semicircular plate (2014a) and the second semicircular plate (2014b).
9. The easy-to-install fastener of claim 8, wherein: A first handle (2014d) is arranged on the outer surface of the first semicircular plate (2014a), and a second handle (2014e) is arranged on the outer surface of the second semicircular plate (2014b).
10. The ready-to-install fastener of any of claims 1-9, wherein: A through hole (302) is arranged on the free end of the screw rod (300) in the radial direction.