A high-strength anti-loosening bolt fastener

Abstract

The utility model discloses a high -strength anti -loosening bolt fastener, specifically related to fastener technical field, including the screw cap, the screw cap bottom fixedly connected with the bolt, be provided with the limit component on the screw cap, limit component includes the connecting shell, the connecting shell bottom fixedly connected with the first threaded rod opposite with the bolt thread direction, first threaded rod outside is connected with the screw cap inside thread, and is through the screw cap and the bolt inside thread connection, and the screw cap and bolt material quality are all carbon steel. The utility model discloses through setting limit component and auxiliary mechanism, first threaded rod can form bidirectional locking structure with the bolt, can obviously promote the anti -loosening performance of bolt, help to promote the pre -tightening force and the anti -relaxation ability of bolt, can limit the rotation degree of freedom of nut through two bolts, can assist the nut and bolt cooperation, makes the bolt can keep stable after connecting.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and more specifically, to a high-strength anti-loosening bolt fastener. Background Technology

[0002] A bolt is a mechanical part, a cylindrical threaded fastener typically used with a nut. It consists of a head and a shank (a cylinder with external threads), and is used to fasten two parts with through holes together. This type of connection is called a bolted connection. Since the two parts can be separated by unscrewing the nut, a bolted connection is a detachable connection.

[0003] In complex and ever-changing industrial environments, ordinary bolts can no longer meet the needs of certain special occasions because their tightening effect is limited, they require high precision in matching nuts, and can easily pose safety hazards to production and manufacturing.

[0004] A search revealed that Chinese patent CN213776016U discloses a high-strength anti-loosening bolt. This high-strength anti-loosening bolt solves the problems of limited fastening effect of ordinary bolts and high precision requirements for matching nuts. It can achieve the purpose of preventing loosening. The overall structure is integrated and has stable strength. Furthermore, the use of two fastening mechanisms, one above and one below, ensures that the entire device will not loosen after being fixed, and has good fastening performance.

[0005] When the aforementioned high-strength anti-loosening bolts are used in actual applications, the reciprocating motion or unbalanced force during the operation of the mechanical system will generate vibration. The components such as the locking side rod and side fastening strip are not conducive to providing sufficient friction. Under the continuous influence of external forces, the friction between the thread side and the support surface will decrease, eventually leading to loosening or falling off. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a high-strength anti-loosening bolt fastener to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-strength anti-loosening bolt fastener includes a nut, a bolt fixedly connected to the bottom end of the nut, and a limit component provided on the nut;

[0009] The limiting component includes a connecting shell, and a first threaded rod opposite to the bolt thread direction is fixedly connected to the bottom end of the connecting shell. The outer side of the first threaded rod is threadedly connected to the inner thread of the nut, and it passes through the nut and is threadedly connected to the inner thread of the bolt. Both the nut and the bolt are made of carbon steel.

[0010] The nut is provided with an auxiliary mechanism. A second threaded rod is threadedly connected to the inside of the connecting housing. A turntable for rotating the second threaded rod is fixedly connected to the top of the second threaded rod. A threaded disc is threadedly connected to the outside of the second threaded rod. The threaded disc is slidably connected to the inside of the connecting housing. Multiple insertion rods are fixedly connected to the outside of the threaded disc. The insertion rods penetrate the connecting housing and extend to the outside of the connecting housing. Multiple slots are opened on the outside of the nut. The insertion rods are inserted into the inside of the slots. Multiple limiting grooves are opened inside the connecting housing. The inside of the limiting grooves is slidably connected to the outside of the insertion rods.

[0011] By adopting the above technical solution, the bolts can be limited after installation, thereby significantly improving the anti-loosening effect of the bolts.

[0012] As a further description of the above technical solution: the limiting mechanism includes a nut, which is threaded to the outside of the bolt. A washer is provided above the nut and is sleeved on the outside of the bolt. A pin is slidably connected inside the washer. One end of the pin passes through the nut. Multiple insertion holes are provided on the outside of the bolt, and the inner side of the insertion holes is inserted into the pin.

[0013] By adopting the above technical solution, the nut can be limited so that it can better fit with the bolt, and thus maintain stability after installation.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. By setting a limiting component, compared with the existing technology, the first threaded rod is opposite to the bolt thread and can be connected to the bolt thread to form a two-way locking structure. Multiple insert rods can be inserted into the slot to limit the connection shell, thereby reducing the displacement of the connection shell. This allows the first threaded rod to be tightly connected to the bolt, which can significantly improve the bolt's anti-loosening performance and help improve the bolt's preload and anti-loosening ability.

[0016] 2. By setting up an auxiliary mechanism, compared with the existing technology, two pins can penetrate the nut and insert it into the hole on the bolt, which can form a physical barrier, restrict the rotational freedom of the nut, and thus prevent the nut from loosening. By limiting the nut, the connection of the bolt can be assisted, so that the bolt can remain stable after connection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the bolt structure of this utility model.

[0019] Figure 3This is a cross-sectional view of the connecting shell of this utility model.

[0020] Figure 4 This is a partial structural diagram of the threaded disc connection of this utility model.

[0021] Figure 5 This is a partial structural diagram of the connection point of the connecting shell of this utility model.

[0022] Figure 6 This is a schematic diagram of the gasket structure of this utility model.

[0023] The attached diagram is labeled as follows: 1. Nut; 2. Bolt; 3. Connecting housing; 4. First threaded rod; 5. Second threaded rod; 6. Turntable; 7. Threaded disc; 8. Insert rod; 9. Slot; 10. Nut; 11. Washer; 12. Insertion hole; 13. Pin; 14. Limiting groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] The embodiments disclosed in this application are as follows: Figure 1-6 The high-strength anti-loosening bolt fastener shown includes a nut 1, a bolt 2 fixedly connected to the bottom end of the nut 1, and a limit component provided on the nut 1;

[0026] The limiting component includes a connecting housing 3. A first threaded rod 4 with the opposite thread direction to the bolt 2 is fixedly connected to the bottom end of the connecting housing 3. The outer side of the first threaded rod 4 is threadedly connected to the inside of the nut 1 and passes through the nut 1 and is threadedly connected to the inside of the bolt 2. Both the nut 1 and the bolt 2 are made of carbon steel.

[0027] The nut 1 is equipped with an auxiliary mechanism. A second threaded rod 5 is threadedly connected to the inside of the connecting housing 3. A turntable 6 for rotating the second threaded rod 5 is fixedly connected to the top of the second threaded rod 5. A threaded disc 7 is threadedly connected to the outside of the second threaded rod 5. The threaded disc 7 is slidably connected to the inside of the connecting housing 3. Multiple insertion rods 8 are fixedly connected to the outside of the threaded disc 7. The insertion rods 8 penetrate the connecting housing 3 and extend to the outside of the connecting housing 3. Multiple slots 9 are opened on the outside of the nut 1. The insertion rods 8 are inserted into the inside of the slots 9. Multiple limiting grooves 14 are opened inside the connecting housing 3. The inside of the limiting grooves 14 is slidably connected to the outside of the insertion rods 8. By utilizing the opposite thread direction of the first threaded rod 4 and the bolt 2, the internal threads of the first threaded rod 4 and the bolt 2 are connected, forming a bidirectional constraint, thereby maintaining the overall locking effect. The second threaded rod 5 can drive the threaded disc 7 to move up and down through the thread. The threaded disc 7 is slidably connected to the inner side of the limiting groove 14 through the insert rod 8, so that the threaded disc 7 can stably drive multiple insert rods 8 to extend to the outside of the connecting shell 3 and insert into the slot 9, so as to limit the connecting shell 3. This allows the first threaded rod 4 and the bolt 2 to maintain a stable connection, thereby significantly improving the anti-loosening effect of the bolt 2.

[0028] Reference Figure 3 and 6 As shown, the limiting mechanism includes a nut 10, which is threaded to the outside of the bolt 2. A washer 11 is provided above the nut 10 and is fitted onto the outside of the bolt 2. A pin 13 is slidably connected inside the washer 11, with one end of the pin 13 passing through the nut 10. Multiple insertion holes 12 are provided on the outside of the bolt 2, and the pins 13 are inserted into the inner side of the insertion holes 12. After the nut 10 is installed, two pins 13 on the inner side of the washer 11 are inserted into the insertion holes 12. The two pins 13 can connect the nut 10 and the bolt 2 to limit the nut 10, thereby preventing the nut 10 from loosening and helping the nut 10 to remain stable after installation, thus assisting the bolt 2 in fixing.

[0029] Working principle of this utility model: This utility model designs a high-strength anti-loosening bolt fastener, the specific structure of which is shown in the attached instruction manual. Figure 1-6As shown, in this technical solution, through the mutual cooperation between various structures, when fastening is required by bolt 2, bolt 2 is first installed in a suitable position by thread. Then, washer 11 is placed on the outside of bolt 2, and nut 10 is rotated so that bolt 2 and nut 10 cooperate to fasten the object. After bolt 2 and nut 10 are installed, the two pins 13 on the inside of washer 11 are aligned with the insertion hole 12. The pins 13 can pass through the insertion hole 12 and be inserted into the insertion hole 12, so that the two pins 13 can limit nut 10 and bolt 2, thereby preventing nut 10 from loosening. Then, the connecting housing 3 is rotated, and the thread direction of the first threaded rod 4 is opposite to the thread direction of bolt 2, so that the first threaded rod 4 and nut 1 and bolt 2 are engaged. After the threaded connection, the bolt 2 can be limited. Then, the turntable 6 is rotated by an external tool. The turntable 6 can drive the second threaded rod 5 to rotate. The second threaded rod 5 can drive the threaded disc 7 to move up and down through the thread. Multiple limiting grooves 14 can provide a limiting effect on the outside of the insertion rod 8, so that when the threaded disc 7 moves, it can stably drive the multiple insertion rods 8 to move down, so that the multiple insertion rods 8 can be inserted into the slot 9, thereby limiting the nut 1. Through the cooperation of the multiple insertion rods 8 and the first threaded rod 4, the movement of the nut 1 can be restricted, thereby preventing the nut 1 from loosening. At the same time, through the material interaction between the nut 1 and the bolt 2, the bolt 2 can ensure good toughness and fatigue resistance during the fixing process, thereby providing high strength and tensile performance.

[0030] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures and will not be described here.

[0032] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength anti-loosening bolt fastener, comprising a nut (1), characterized in that: The bottom end of the nut (1) is fixedly connected to a bolt (2), and a limit component is provided on the nut (1); The limiting component includes a connecting shell (3), and a first threaded rod (4) with the opposite thread direction to the bolt (2) is fixedly connected to the bottom end of the connecting shell (3). The outer side of the first threaded rod (4) is threadedly connected to the inside of the nut (1), and it passes through the nut (1) and is threadedly connected to the inside of the bolt (2). The nut (1) and the bolt (2) are both made of carbon steel. An auxiliary mechanism is provided on the nut (1).

2. The high-strength anti-loosening bolt fastener according to claim 1, characterized in that: The connecting housing (3) is internally threaded with a second threaded rod (5), and the top end of the second threaded rod (5) is fixedly connected with a turntable (6) for rotating the second threaded rod (5). The outer side of the second threaded rod (5) is threaded with a threaded disc (7), and the threaded disc (7) is slidably connected to the inner side of the connecting housing (3).

3. The high-strength anti-loosening bolt fastener according to claim 2, characterized in that: Multiple insert rods (8) are fixedly connected to the outside of the threaded disc (7). The insert rods (8) penetrate the connecting shell (3) and extend to the outside of the connecting shell (3). Multiple slots (9) are provided on the outside of the nut (1). The insert rods (8) are inserted into the inside of the slots (9).

4. The high-strength anti-loosening bolt fastener according to claim 1, characterized in that: The connecting shell (3) has multiple limiting grooves (14) inside, and the inner side of the limiting groove (14) is slidably connected to the outer side of the plug rod (8).

5. The high-strength anti-loosening bolt fastener according to claim 1, characterized in that: The limiting mechanism includes a nut (10), which is threaded to the outside of the bolt (2).

6. The high-strength anti-loosening bolt fastener according to claim 5, characterized in that: A washer (11) is provided above the nut (10). The washer (11) is sleeved on the outside of the bolt (2). A pin (13) is slidably connected inside the washer (11). One end of the pin (13) passes through the nut (10).

7. The high-strength anti-loosening bolt fastener according to claim 1, characterized in that: The bolt (2) has multiple insertion holes (12) on its outer side, and the inner side of the insertion holes (12) is inserted into the pin (13).

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