A locking screw anti-loosening device

Abstract

This utility model discloses an anti-loosening fixing device for locking screws, belonging to the technical field of anti-loosening locking screws. The device includes a first bolt, a washer on the top outer side of the first bolt, and a second bolt connected to the internal thread of the first bolt. A cross-shaped groove is formed on the top of both the first and second bolts. A mounting base is installed at the bottom of the first bolt and the washer. A through groove is formed inside the mounting base, and mounting slots are formed on both sides of the mounting base. A first fixing bolt and a second fixing bolt are slidably connected inside the two mounting slots. A first fixing block and a second fixing block are slidably connected inside the through grooves. The first fixing block has a first internal thread. This device can fix objects and prevent bolt loosening due to the passage of time and natural erosion.

Description

Technical Field

[0001] This utility model relates to the field of anti-loosening technology for locking screws, and more specifically, to an anti-loosening fixing device for locking screws. Background Technology

[0002] A screw is a tool used to fasten objects and machine parts; it is also called a screw, bolt, or bolt. It utilizes the physical and mathematical principles of the inclined plane, circular rotation, and friction to progressively tighten objects. A screw generally consists of four parts: head, body, thread, and tip. Its core structure is the evenly distributed helical protrusions (thread) on its outer surface, which are converted into axial force through rotational motion, achieving connection, sealing, or transmission functions. Screws are mainly divided into three types: ordinary screws, self-tapping screws, and expansion screws.

[0003] Based on the above, the inventors have discovered that when using locking screws to fix objects, the bolts and nuts may loosen and fall off over time due to the passage of time and natural erosion. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a locking screw anti-loosening fixing device, aiming to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a locking screw anti-loosening fixing device, which can prevent the loosening between the bolt and nut, thus preventing the object from being loosely fixed.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A locking screw anti-loosening device includes a first bolt, a washer disposed on the top outer side of the first bolt, a second bolt internally threaded onto the first bolt, a cross-shaped groove formed on the top of both the first and second bolts, a mounting base mounted on the bottom of the first bolt and the washer, a through groove formed inside the mounting base, mounting slots formed on both sides of the mounting base, a first fixing bolt and a second fixing bolt slidably connected inside the two mounting slots respectively, a first fixing block and a second fixing block slidably connected inside the through groove, a first fixing block internally having a first internal thread, and a first internal threaded hole formed on both sides of the first fixing block, and a second fixing block internally having a second internal thread, and a second internal threaded hole formed on both sides of the second fixing block.

[0009] Furthermore, rubber gaskets are fixedly connected to the top and bottom of the mounting base respectively.

[0010] Furthermore, rubber washers are provided on the inner sides of the two first fixing bolts and the two second fixing bolts, and the four rubber washers are respectively attached to both sides of the mounting base.

[0011] Furthermore, the surface thread of the first bolt is connected to the interior of the first internal thread, and one end of each of the two first fixing bolts is threaded to the interior of the two first internal thread holes.

[0012] Furthermore, the surface thread of the second bolt is connected to the interior of the second internal thread, and one end of each of the two second fixing bolts is threaded to the interior of the two second internal thread holes.

[0013] Furthermore, the top of the second bolt is fixedly connected with four protrusions, and the protrusions are movably connected inside the cross-shaped groove.

[0014] 3. Beneficial effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] (1) In this solution, by setting a second bolt, the first bolt is threaded into the first internal thread inside the first fixing block, thereby fixing the object. Over time and due to natural erosion, the bolt will loosen, resulting in poor fixing effect. After the first bolt is fixed, the second bolt inside the first bolt is turned to fix the first bolt, thus preventing the first bolt from loosening and strengthening the fastening effect.

[0017] (2) In this solution, by setting a fixing block, the operator places the first fixing block and the second fixing block in the through groove inside the mounting base, and passes the first fixing bolt and the second fixing bolt through the mounting groove on both sides respectively, and threadedly connects them to the inside of the first threaded hole and the second threaded hole. The first fixing block and the second fixing block inside the through groove are fixed by the first fixing bolt and the second fixing bolt. Due to the different thickness of the object, the position of the first fixing block and the second fixing block can be adjusted to adapt to different working environments, which is highly practical. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the first bolt of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the mounting base of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the fixing block of this utility model.

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the cross-shaped groove of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. First bolt; 2. Washer; 3. Second bolt; 4. Cross-shaped groove; 5. Mounting base; 6. Through groove; 7. Mounting groove; 8. First fixing bolt; 9. Second fixing bolt; 10. First fixing block; 11. First internal thread; 12. First threaded hole; 13. Second fixing block; 14. Second internal thread; 15. Second threaded hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please see Figure 1 - Figure 5 A locking screw anti-loosening fixing device includes a first bolt 1, a washer 2 provided on the top of the outer side of the first bolt 1, a second bolt 3 connected to the internal thread of the first bolt 1, a cross-shaped groove 4 opened on the top of the first bolt 1 and the second bolt 3, a mounting base 5 installed at the bottom of the first bolt 1 and the washer 2, a through groove 6 opened inside the mounting base 5, mounting grooves 7 opened on both sides of the mounting base 5, a first fixing bolt 8 and a second fixing bolt 9 slidably connected inside the two mounting grooves 7, a first fixing block 10 and a second fixing block 13 slidably connected inside the through groove 6, a first internal thread 11 opened inside the first fixing block 10, a first internal thread hole 12 opened on both sides of the first fixing block 10, a second internal thread 14 opened inside the second fixing block 13, and a second internal thread hole 15 opened on both sides of the second fixing block 13.

[0028] See Figure 1 , Figure 2Rubber washers are fixedly connected to the top and bottom of the mounting base 5 respectively; rubber washers are provided on the inner sides of the two first fixing bolts 8 and the two second fixing bolts 9 respectively, and the four rubber washers are respectively attached to the two sides of the mounting base 5. By fixing the upper and lower ends of the mounting base 5 to the rubber washers respectively, the mounting base 5 can be flipped for use, which increases the service life of the mounting base 5.

[0029] See Figure 3 , Figure 4 The surface thread of the first bolt 1 is connected to the inside of the first internal thread 11, and one end of each of the two first fixing bolts 8 is threaded to the inside of the two first internal thread holes 12. The surface thread of the second bolt 3 is connected to the inside of the second internal thread 14, and one end of each of the two second fixing bolts 9 is threaded to the inside of the two second internal thread holes 15. The operator places the first fixing block 10 and the second fixing block 13 in the through groove 6 inside the mounting base 5, and passes the first fixing bolts 8 and the second fixing bolts 9 through the mounting grooves 7 on both sides, threaded to the inside of the first thread hole 12 and the second thread hole 15. The first fixing block 10 and the second fixing block 13 inside the through groove 6 are fixed by the first fixing bolts 8 and the second fixing bolts 9. Due to the different thicknesses of the objects, the positions of the first fixing block 10 and the second fixing block 13 are adjusted to adapt to different working environments, making it highly practical.

[0030] See Figure 5 The top of the second bolt 3 is fixedly connected with four protrusions, which are movably connected to the inside of the cross-shaped groove 4. The first bolt 1 is threaded into the first internal thread 11 inside the first fixing block 10, thereby fixing the object. Over time and due to natural erosion, the bolt will loosen, resulting in poor fixing effect. After the first bolt 1 is fixed, the second bolt 3 inside the first bolt 1 is tightened to fix the first bolt 1, prevent the first bolt 1 from loosening, and strengthen the fastening effect.

[0031] In use: When fixing an object, place the first bolt 1 and the mounting base 5 on both sides of the object. Thread the first bolt 1 into the first internal thread 11 inside the first fixing block 10 to fix the object. Over time and due to natural erosion, the bolt may loosen, resulting in poor fixing effect. After the first bolt 1 is fixed, tighten the second bolt 3 inside the first bolt 1 to fix the first bolt 1, preventing it from loosening and strengthening the fastening effect. The operator places the first fixing block 10 and the second fixing block 13 into the through groove 6 inside the mounting base 5. Thread the first fixing bolt 8 and the second fixing bolt 9 through the mounting grooves 7 on both sides, threading them into the first threaded hole 12 and the second threaded hole 15. Fix the first fixing block 10 and the second fixing block 13 inside the through groove 6 using the first fixing bolt 8 and the second fixing bolt 9. Due to different object thicknesses, adjust the position of the first fixing block 10 and the second fixing block 13 to adapt to different working environments, making it highly practical.

[0032] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A locking device for preventing loosening of a screw, comprising a first bolt (1), a washer (2) disposed on the top outer side of the first bolt (1), a second bolt (3) internally threadedly connected to the first bolt (1), a cross-shaped groove (4) formed on the top of the first bolt (1) and the second bolt (3), and a mounting base (5) installed at the bottom of the first bolt (1) and the washer (2), characterized in that: The mounting base (5) has a through groove (6) inside, and mounting grooves (7) are respectively opened on both sides of the mounting base (5). The first fixing bolt (8) and the second fixing bolt (9) are slidably connected inside the two mounting grooves (7). The first fixing block (10) and the second fixing block (13) are slidably connected inside the through groove (6). The first fixing block (10) has a first internal thread (11) inside, and the first internal thread hole (12) is opened on both sides of the first fixing block (10). The second fixing block (13) has a second internal thread (14) inside, and the second internal thread hole (15) is opened on both sides of the second fixing block (13).

2. The anti-loosening fixing device for a locking screw according to claim 1, characterized in that: The top and bottom of the mounting base (5) are respectively fixedly connected with rubber gaskets.

3. The anti-loosening fixing device for locking screws according to claim 1, characterized in that: Rubber washers are provided on the inner sides of the two first fixing bolts (8) and the two second fixing bolts (9), and the four rubber washers are respectively attached to both sides of the mounting base (5).

4. The anti-loosening fixing device for locking screws according to claim 1, characterized in that: The surface thread of the first bolt (1) is connected to the inside of the first internal thread (11), and one end of each of the two first fixing bolts (8) is threaded to the inside of the two first internal thread holes (12).

5. The anti-loosening fixing device for a locking screw according to claim 1, characterized in that: The surface thread of the second bolt (3) is connected to the inside of the second internal thread (14), and one end of each of the two second fixing bolts (9) is threaded to the inside of the two second internal thread holes (15).

6. The anti-loosening fixing device for a locking screw according to claim 1, characterized in that: The top of the second bolt (3) is fixedly connected with four protrusions, and the protrusions are movably connected to the inside of the cross-shaped groove (4).

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