Anti-tripping high-strength fastening screw

Abstract

The utility model provides an anti-tripping high-strength fastening screw rod, which belongs to the field of anti-tripping screw rods and comprises a screw rod main body in threaded connection with a nut; a fastening assembly; the fastening assembly comprises a cylinder fixed to the screw rod body, the circular ring is fixed to the cylinder through cooperation of a clamping mechanism and a locking groove, a plurality of positioning grooves are formed in the upper end of the nut, positioning columns are slidably connected into the positioning grooves, and connecting rings are fixed to the upper ends of the positioning columns. And a pressure spring is fixedly connected between the connecting ring and the circular ring. The compression spring is in a compressed state, so that downward pressure can be generated on the connecting ring, a damping effect can be brought to looseness of the bolt, nut looseness is effectively avoided, the nut can be further limited and prevented from rotating through cooperation of the positioning column and the positioning groove, the locking effect and stability of a workpiece can be guaranteed, and the service life of the workpiece is prolonged. And within a certain range, the locking device can be suitable for locking various workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of an anti-dropout screw body, in particular to an anti-dropout high-strength fastening screw. Background Art

[0002] Bolt: A mechanical part, a cylindrical threaded fastener that is matched with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which must be matched with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

[0003] When using a screw or bolt, the most important thing is to prevent it from loosening, so as to ensure the stability of the bolt and nut in fixing the workpiece; the bolt and nut are locked by friction and then fix the workpiece.

[0004] For some equipment that generates vibration during operation, it is crucial to prevent the bolts and nuts from loosening. Loosening of the bolts and nuts will not only increase noise, but may even cause damage to the equipment. To this end, the present application proposes an anti-disengagement high-strength fastening screw. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an anti-disengagement high-strength fastening screw.

[0006] The embodiment of the utility model provides an anti-dropping high-strength fastening screw, comprising:

[0007] A screw body, wherein a nut is threadedly connected to the screw body;

[0008] A fastening assembly; the fastening assembly includes a cylinder fixed on a screw body, the cylinder is provided with a plurality of locking grooves, the cylinder is sleeved with a movably arranged ring, the ring is fixed to the cylinder by cooperating with the locking groove through a snap-fit ​​mechanism, the upper end of the nut is provided with a plurality of positioning grooves, a plurality of positioning grooves are slidably connected with positioning columns, a connecting ring is fixed to the upper ends of the plurality of positioning columns, and a compression spring is fixedly connected between the connecting ring and the ring.

[0009] Furthermore, the cylinder and the screw body are integrally formed, and the locking grooves are distributed in a linear array on the cylinder along the axial direction of the cylinder.

[0010] Furthermore, the clamping mechanism includes a locking rod that passes through the circular ring and is slidably arranged therewith, the locking rod is slidably connected in the locking groove, a pulling block is fixed on the locking rod, a tensioning spring is fixed on the pulling block, the other end of the tensioning spring is fixedly connected to the circular ring, and the tensioning spring is sleeved on the outside of the locking rod.

[0011] Furthermore, the positioning grooves are distributed in a ring array at the upper end of the nut.

[0012] Furthermore, the inner diameter of the connecting ring and the inner diameter of the compression spring are both larger than the outer diameter of the screw body.

[0013] Furthermore, the ring can slide and rotate on the cylinder.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The clamping spring of the utility model is in a compressed state, thereby being able to generate downward pressure on the connecting ring, which can bring a damping effect to the loosening of the bolt and effectively prevent the nut from loosening. The cooperation of the positioning column and the positioning groove can further limit the nut and prevent it from rotating, thereby ensuring the effect and stability of workpiece locking. Within a certain range, it can be applicable to the locking of various workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an anti-disengagement high-strength fastening screw described in an embodiment of the utility model.

[0017] Figure 2 It is a schematic diagram of a screw body in an anti-disengagement high-strength fastening screw described in an embodiment of the utility model.

[0018] Figure 3 It is a schematic diagram of a fastening assembly in an anti-disengagement high-strength fastening screw described in an embodiment of the utility model.

[0019] In the above drawings: 1 screw body, 2 cylinder, 3 nut, 4 locking groove, 5 connecting ring, 6 ring, 7 compression spring, 8 positioning groove, 9 positioning column, 10 locking rod, 11 pulling block, 12 tensioning spring. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-Figure 3 As shown, the embodiment of the utility model provides an anti-disengagement high-strength fastening screw, comprising:

[0022] A screw body 1, on which a nut 3 is threadedly connected;

[0023] Fastening assembly; the fastening assembly includes a cylinder 2 fixed on the screw body 1, a plurality of locking grooves 4 are provided on the cylinder 2, the cylinder 2 and the screw body 1 are integrally formed, and the locking grooves 4 are distributed in a linear array on the cylinder 2 along the axial direction of the cylinder 2;

[0024] The cylinder 2 is sleeved with a movable ring 6, which can slide and rotate on the cylinder 2; the ring 6 is fixed to the cylinder 2 by a clamping mechanism in cooperation with the lock groove 4, the clamping mechanism includes a lock rod 10 that penetrates the ring 6 and is slidably arranged therewith, the lock rod 10 is slidably connected in the lock groove 4, a pull block 11 is fixed to the lock rod 10, a tension spring 12 is fixed to the pull block 11, the other end of the tension spring 12 is fixedly connected to the ring 6, the tension spring 12 is sleeved on the outside of the lock rod 10, and the ring 6 can be fixed to the cylinder 2;

[0025] A plurality of positioning grooves 8 are provided at the upper end of the nut 3, and the positioning grooves 8 are distributed in a ring array at the upper end of the nut 3; positioning columns 9 are slidably connected in the plurality of positioning grooves 8, and a connecting ring 5 is fixed at the upper end of the plurality of positioning columns 9, and a clamping spring 7 is fixedly connected between the connecting ring 5 and the circular ring 6, and the inner diameter of the connecting ring 5 and the inner diameter of the clamping spring 7 are both larger than the outer diameter of the screw body 1.

[0026] The detailed working process of the utility model is as follows:

[0027] 1. When in use, the screw body 1 passes through the mounting hole on the workpiece and then screws on the nut 3 until the nut 3 abuts against the workpiece, then the connecting ring 5, the compression spring 7 and the ring 6 are sleeved on the screw body 1 and the cylinder 2. It should be noted that when the ring 6 is sleeved on the cylinder 2, first manually pull the pull block 11, and the movement of the pull block 11 drives the locking rod 10 to move, so that the locking rod 10 will not interfere with the sleeve of the ring 6 on the cylinder 2;

[0028] 2. After assembly, insert multiple positioning columns 9 into the positioning grooves 8 and align the locking rod 10 with the locking groove 4, then press down the ring 6 to compress the compression spring 7, then release the pull block 11, and under the action of the tension spring 12, the locking rod 10 is inserted into the locking groove 4 to achieve the positioning of the ring 6 and complete the installation;

[0029] 3. Since the compression spring 7 is in a compressed state, it can generate downward pressure on the connecting ring 5, which can bring a damping effect to the loosening of the nut 3, effectively preventing the nut 3 from loosening, and the cooperation of the positioning column 9 and the positioning groove 8 can further limit the nut 3 to prevent it from rotating, thereby ensuring the locking effect and stability of the workpiece, thereby achieving a higher strength of fastening and anti-slipping between the nut 3 and the screw body 1;

[0030] 4. Due to the arrangement of the compression spring 7 and the position-adjustable ring 6, it is possible to lock a variety of workpieces within a certain range.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A high-strength anti-disengagement fastening screw, characterized in that: include: A screw body (1), wherein a nut (3) is threadedly connected to the screw body (1); Fastening components; The fastening assembly comprises a cylinder (2) fixed on a screw body (1), the cylinder (2) being provided with a plurality of locking grooves (4), the cylinder (2) being sleeved with a movably arranged circular ring (6), the circular ring (6) being fixed on the cylinder (2) by means of a snap-fit ​​mechanism in cooperation with the locking groove (4), the upper end of the nut (3) being provided with a plurality of positioning grooves (8), the plurality of positioning grooves (8) being slidably connected with positioning columns (9), the upper ends of the plurality of positioning columns (9) being fixed with connecting rings (5), and a compression spring (7) being fixedly connected between the connecting ring (5) and the circular ring (6).

2. The anti-dropping high-strength fastening screw according to claim 1, characterized in that: in: The cylinder (2) and the screw body (1) are integrally formed, and the locking grooves (4) are distributed on the cylinder (2) in a linear array along the axial direction of the cylinder (2).

3. The anti-dropping high-strength fastening screw according to claim 1, characterized in that: in: The clamping mechanism comprises a locking rod (10) penetrating the circular ring (6) and slidably arranged therewith, the locking rod (10) being slidably connected in the locking groove (4), a pulling block (11) being fixed on the locking rod (10), a tensioning spring (12) being fixed on the pulling block (11), the other end of the tensioning spring (12) being fixedly connected to the circular ring (6), and the tensioning spring (12) being sleeved on the outside of the locking rod (10).

4. The anti-dropping high-strength fastening screw according to claim 1, characterized in that: in: The positioning grooves (8) are distributed in a ring array at the upper end of the nut (3).

5. The anti-dropping high-strength fastening screw according to claim 1, characterized in that: in: The inner diameter of the connecting ring (5) and the inner diameter of the compression spring (7) are both set larger than the outer diameter of the screw body (1).

6. The anti-dropping high-strength fastening screw according to claim 1, characterized in that: in: The ring (6) can slide and rotate on the cylinder (2).

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