Tightness-adjustable fastener

Abstract

The tightness-adjustable fastener comprises a bolt structure, the bolt structure comprises a connecting block, a base plate, a bottom plate and a reinforcing structure, a rubber pad is installed in an installation groove, and a fixing screw rod is installed at the top end of an external screw rod. The mounting groove is formed in the bottom end of the threaded rod, and the mounting groove in the bottom end of the threaded rod is in threaded connection with the mounting screw rod at the top end of the external screw rod, so that the external screw rods with different lengths need to be used under different conditions, and the connecting screw rod at the top end of the external screw rod can be screwed into the mounting groove; the external screws are fixed to the bottom ends of the threaded rods, the length of the threaded rods can be adjusted by installing the external screws of different lengths, the threaded rods can adapt to different conditions, the rubber pads are elastic, and after the fixing screws are screwed into the installing grooves, the rubber pads can make the fixing screws more stably fixed; therefore, the purpose that the tightness-adjustable fastener is convenient to adjust the length of the threaded rod is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener with adjustable tightness. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are widely used. Fasteners are widely used in a wide range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, hydraulics, etc. Various types of fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies. They are the most widely used mechanical basic parts. They are characterized by a wide variety of varieties and specifications, different performances and uses, and a high degree of standardization, serialization and generalization.

[0003] To this end, China's patent application number is CN202579581U, which discloses a fastener. In order to solve the problem that the nuts of current fastener accessories are easy to loosen, thus affecting the use, a fastener is provided, the fastener includes: a bolt, a nut, the bolt is a hexagonal half-thread bolt, the bolt includes a bolt head and a screw, an outer thread groove is provided on the outer wall of the screw, the thread groove accounts for 30% to 50% of the total length of the screw, the thread groove and the nut are hexagonal prisms, and an inner thread groove is provided along the central axis, the inner thread groove matches the outer thread groove, and also includes a gasket, the bottom surface of the gasket is a circular ring, and the outer edge of the circular ring extends upward,

[0004] A protective wall is formed, and the inner diameter of the circular ring sheet matches the outer diameter of the screw rod, which effectively improves the safety of the nut in use and increases the stability of the matching between the bolt and the nut.

[0005] The above-mentioned prior art effectively improves the safety of the nut in use and increases the stability of the bolt and nut fit. However, 1. It is difficult to adjust the length of the threaded rod of the adjustable tightness fastener. In different situations, it is often necessary to adjust the threaded rod of different lengths, and the device is difficult to adapt to different situations.

[0006] 2. Fasteners with adjustable tightness are difficult to strengthen the structural strength of the connecting block. Since the connecting block is often exposed to the outside, it is prone to collision. The low strength of the connecting block can easily affect its use and may cause damage. Utility Model Content

[0007] The utility model aims to provide a fastener with adjustable tightness, so as to solve the defects of the existing fastener with adjustable tightness, that is, it is difficult to adjust the length of the threaded rod and to strengthen the structural strength of the connecting block.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a fastener with adjustable tightness, comprising a bolt structure;

[0009] The bolt structure comprises a connection block, a pad, a bottom plate and a reinforcement structure, wherein the reinforcement structure is installed inside the connection block, the pad is installed at the top end of the connection block, and the bottom plate is installed at the bottom end of the connection block;

[0010] A connecting rod is installed at the bottom end of the bottom plate, and a threaded rod is installed at the bottom end of the connecting rod, an external screw is installed at the bottom end of the threaded rod, a nut is movably connected to the outside of the threaded rod, and a connecting structure is installed at the top end of the external screw;

[0011] The connection structure includes a fixed screw rod, a mounting groove and a rubber pad. The mounting groove is installed at the bottom end of the threaded rod, a rubber pad is installed inside the mounting groove, and the fixed screw rod is installed at the top end of the external screw rod.

[0012] When in use, first the top and bottom ends of the nut are connected by a connecting layer and a cushion. The cushion can be made of rubber material, is elastic and anti-slip, and is provided with fine anti-slip patterns. The anti-slip patterns can enhance the friction of the cushion. The cushion can enhance the anti-slip property of the nut and make the nut more stably fixed. The nut and the threaded rod and the connecting screw form a threaded connection, which can be tightened by turning the nut, and the tightness of the fastener can also be adjusted by turning the nut.

[0013] Preferably, the reinforcement structure includes a first reinforcement layer, a second reinforcement layer, a first reinforcement rib and a second reinforcement rib. The first reinforcement layer is arranged inside the connecting block, and the second reinforcement layer is arranged inside the connecting block. The first reinforcement rib is installed inside the first reinforcement layer, and the first reinforcement rib and the second reinforcement rib are respectively arranged inside the first reinforcement layer and the second reinforcement layer. The first reinforcement rib and the second reinforcement rib are arranged at equal intervals. The first reinforcement rib and the second reinforcement rib can be made of steel material, which can strengthen the structural strength of the connecting block. In this way, the structural strength of the connecting block can be strengthened while reducing the used materials and reducing the weight of the fasteners.

[0014] Preferably, second reinforcing ribs are provided inside the second reinforcing layer, and the second reinforcing ribs are arranged at equal intervals inside the second reinforcing layer. The first reinforcing ribs and the second reinforcing ribs can be made of steel material, which can enhance the structural strength of the connecting block.

[0015] Preferably, the first reinforcing ribs are arranged at equal intervals inside the first reinforcement layer, and the first reinforcing ribs are distributed in a ring shape.

[0016] Preferably, the top and bottom ends of the nut are both equipped with anti-slip structures, and the anti-slip structure includes a connecting layer, a soft pad and anti-slip patterns, the connecting layer is installed at the top and bottom ends of the nut, the top and bottom ends of the connecting layer are both equipped with soft pads, the top and bottom ends of the nut are connected via the connecting layer and the soft pad, the soft pad can be made of rubber material, the soft pad has elasticity and anti-slip properties, and the soft pad can enhance the anti-slip property of the nut.

[0017] Preferably, the surface of the soft pad is provided with anti-skid patterns, and the soft pad is symmetrically distributed about the central axis of the nut, and the anti-skid patterns can enhance the friction of the soft pad.

[0018] Preferably, the outer wall of the fixing screw is evenly provided with external threads, the inner wall of the mounting groove is evenly provided with internal threads that cooperate with the external threads, the fixing screw and the mounting groove are threadedly connected, and the connecting screw at the top of the external screw can be screwed into the mounting groove.

[0019] The utility model provides an adjustable tightness fastener, which has the advantages that: by providing an installation groove at the bottom end of the threaded rod, the installation groove at the bottom end of the threaded rod and the installation screw at the top end of the external screw form a threaded connection, and in different situations, external screws of different lengths need to be used, and the connecting screw at the top end of the external screw can be screwed into the installation groove, and the external screw can be fixed to the bottom end of the threaded rod. By installing external screws of different lengths, the length of the threaded rod can be adjusted, so that the threaded rod can adapt to different situations. The rubber pad is elastic, and after the fixing screw is screwed into the installation groove, the rubber pad can make the fixing screw more stably fixed, thereby achieving the purpose of the adjustable tightness fastener facilitating the adjustment of the length of the threaded rod.

[0020] A first reinforcement layer is provided inside the connecting block, and first reinforcement ribs and second reinforcement ribs are provided inside the first reinforcement layer and the second reinforcement layer respectively, and the first reinforcement ribs and the second reinforcement ribs are arranged at equal intervals. The first reinforcement ribs and the second reinforcement ribs can be made of steel materials, and the structural strength of the connecting block can be strengthened. In this way, the structural strength of the connecting block can be strengthened while reducing the used materials and the weight of the fasteners, thereby achieving the purpose of strengthening the structural strength of the connecting block with adjustable tightness of the fasteners. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0023] Figure 3 For the utility model Figure 2 A partial cross-section at the center is an enlarged structural diagram;

[0024] Figure 4 This is a schematic diagram of the front cross-sectional explosion structure of the utility model;

[0025] Figure 5 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0026] Explanation of the reference numerals in the figure: 1. bolt structure; 101. connecting block; 102. pad; 103. bottom plate; 104. reinforcement structure; 1041. first reinforcement layer; 1042. second reinforcement layer; 1043. first reinforcement rib; 1044. second reinforcement rib; 2. connecting rod; 3. threaded rod; 4. nut; 5. anti-slip structure; 501. connecting layer; 502. soft pad; 503. anti-slip pattern; 6. external screw; 7. connecting structure; 701. fixing screw; 702. mounting groove; 703. rubber pad. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-Figure 5 The utility model provides an embodiment: a fastener with adjustable tightness, including a bolt structure 1.

[0029] The bolt structure 1 includes a connecting block 101, a pad 102, a base plate 103 and a reinforcing structure 104. The reinforcing structure 104 is installed inside the connecting block 101. The reinforcing structure 104 includes a first reinforcing layer 1041, a second reinforcing layer 1042, a first reinforcing rib 1043 and a second reinforcing rib 1044. The first reinforcing layer 1041 is arranged inside the connecting block 101, the second reinforcing layer 1042 is arranged inside the connecting block 101, and the second reinforcing rib 1044 is arranged inside the second reinforcing layer 1042, and the second reinforcing ribs 1044 are arranged at equal intervals inside the second reinforcing layer 1042.

[0030] First reinforcing ribs 1043 are installed inside the first reinforcing layer 1041 . The first reinforcing ribs 1043 are arranged at equal intervals inside the first reinforcing layer 1041 , and the first reinforcing ribs 1043 are distributed in a ring shape.

[0031] Refer to the attached Figure 5As shown, the first reinforcement layer 1041 and the second reinforcement layer 1042 are respectively provided with the first reinforcement rib 1043 and the second reinforcement rib 1044, and the first reinforcement rib 1043 and the second reinforcement rib 1044 are arranged at equal intervals. The first reinforcement rib 1043 and the second reinforcement rib 1044 can be made of steel material, which can strengthen the structural strength of the connecting block 101. In this way, the structural strength of the connecting block 101 can be strengthened while reducing the used materials and reducing the weight of the fasteners.

[0032] A backing plate 102 is installed at the top end of the connection block 101 , and a bottom plate 103 is installed at the bottom end of the connection block 101 .

[0033] A connecting rod 2 is installed at the bottom end of the base plate 103, and a threaded rod 3 is installed at the bottom end of the connecting rod 2, an external screw 6 is installed at the bottom end of the threaded rod 3, a nut 4 is movably connected to the outer side of the threaded rod 3, and an anti-slip structure 5 is installed at the top and bottom ends of the nut 4, and the anti-slip structure 5 includes a connecting layer 501, a soft pad 502 and an anti-slip pattern 503, the connecting layer 501 is installed at the top and bottom ends of the nut 4, and a soft pad 502 is installed at the top and bottom ends of the connecting layer 501.

[0034] Refer to the attached Figure 1-4 As shown, the top and bottom ends of the nut 4 are connected by a connecting layer 501 and a soft pad 502. The soft pad 502 can be made of rubber material. The soft pad 502 is elastic and anti-slip. Fine anti-slip patterns 503 are provided on the soft pad 502. The anti-slip patterns 503 can enhance the friction of the soft pad 502. The soft pad 502 can enhance the anti-slip property of the nut 4 and can also make the nut 4 more stably fixed. The nut 4 and the threaded rod 3 and the connecting screw form a threaded connection, which can be tightened by turning the nut 4, and the tightness of the fastener can also be adjusted by turning the nut 4.

[0035] A connecting structure 7 is installed at the top of the external screw 6, and the connecting structure 7 includes a fixed screw 701, a mounting groove 702 and a rubber pad 703. The mounting groove 702 is installed at the bottom end of the threaded rod 3, and a rubber pad 703 is installed inside the mounting groove 702. The fixed screw 701 is installed at the top of the external screw 6.

[0036] Refer to the attached Figure 2-4 As shown, the mounting groove 702 at the bottom end of the threaded rod 3 and the mounting screw at the top end of the external screw 6 form a threaded connection. In different situations, external screws 6 of different lengths need to be used. The connecting screw at the top end of the external screw 6 can be screwed into the mounting groove 702, and the external screw 6 can be fixed to the bottom end of the threaded rod 3. By installing external screws 6 of different lengths, the length of the threaded rod 3 can be adjusted, so that the threaded rod 3 can adapt to different situations. The rubber pad 703 is elastic. After the fixing screw 701 is screwed into the mounting groove 702, the rubber pad 703 can make the fixing screw 701 more stably fixed.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fastener with adjustable tightness, comprising a bolt structure (1); Features: The bolt structure (1) comprises a connecting block (101), a pad (102), a bottom plate (103) and a reinforcing structure (104); the reinforcing structure (104) is installed inside the connecting block (101); the pad (102) is installed at the top end of the connecting block (101); and the bottom plate (103) is installed at the bottom end of the connecting block (101); A connecting rod (2) is installed at the bottom end of the bottom plate (103), and a threaded rod (3) is installed at the bottom end of the connecting rod (2), an external screw rod (6) is installed at the bottom end of the threaded rod (3), a nut (4) is movably connected to the outer side of the threaded rod (3), and a connecting structure (7) is installed at the top end of the external screw rod (6); The connection structure (7) comprises a fixing screw (701), a mounting groove (702) and a rubber pad (703); the mounting groove (702) is mounted at the bottom end of the threaded rod (3); a rubber pad (703) is mounted inside the mounting groove (702); and the fixing screw (701) is mounted at the top end of the external screw (6).

2. The fastener with adjustable tightness according to claim 1, characterized in that: The reinforcement structure (104) comprises a first reinforcement layer (1041), a second reinforcement layer (1042), a first reinforcement rib (1043) and a second reinforcement rib (1044); the first reinforcement layer (1041) is arranged inside the connection block (101); the second reinforcement layer (1042) is arranged inside the connection block (101); and the first reinforcement rib (1043) is installed inside the first reinforcement layer (1041).

3. The fastener with adjustable tightness according to claim 2, characterized in that: Second reinforcing ribs (1044) are arranged inside the second reinforcing layer (1042), and the second reinforcing ribs (1044) are arranged at equal intervals inside the second reinforcing layer (1042).

4. The fastener with adjustable tightness according to claim 2, characterized in that: The first reinforcing ribs (1043) are arranged at equal intervals inside the first reinforcing layer (1041), and the first reinforcing ribs (1043) are distributed in a ring shape.

5. The fastener with adjustable tightness according to claim 1, characterized in that: The top and bottom ends of the nut (4) are both installed with anti-skid structures (5), and the anti-skid structure (5) comprises a connecting layer (501), a soft pad (502) and anti-skid patterns (503), the connecting layer (501) is installed at the top and bottom ends of the nut (4), and the top and bottom ends of the connecting layer (501) are both installed with soft pads (502).

6. The fastener with adjustable tightness according to claim 5, characterized in that: The surface of the soft pad (502) is provided with anti-slip grooves (503), and the soft pad (502) is symmetrically distributed about the central axis of the nut (4).

7. The fastener with adjustable tightness according to claim 1, characterized in that: External threads are evenly arranged on the outer wall of the fixing screw (701), and internal threads that cooperate with the external threads are evenly arranged on the inner wall of the installation groove (702). The fixing screw (701) and the installation groove (702) are threadedly connected.

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