Bolt assembly with self-locking function

Abstract

The utility model relates to the technical field of bolts, in particular to a bolt assembly with a self-locking function, which comprises a fixing bolt and a bolt body, the bolt body is arranged in the fixing bolt, a one-way rotating assembly is arranged on the outer side of the upper end of the bolt body, and a self-locking assembly is arranged at the lower end of the bolt body. When the device is used and the bolt body rotates reversely, the locking plate rotates outwards under the action of resistance, so that the resistance generated when the bolt body rotates reversely is increased, the bolt body is self-locked, and the torsional spring drives the locking plate to restore to the original position, and then the bolt body is driven to restore to the original position; when the device is used and the fixing bolt rotates forwards, the fixing bolt is in contact with the plane of the guide plate, so that the bolt body is effectively driven to rotate, and when the fixing bolt is driven to rotate by small external pressing force, the fixing bolt is in contact with the arc-shaped side of the guide plate at the moment, so that the situation that the bolt body is driven to rotate by misoperation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a bolt assembly with a self-locking function. Background Art

[0002] Bolts are common locking components, but when they are in use, they may become loose due to vibration or other reasons, which is detrimental to the use of the device.

[0003] However, general bolt assemblies do not have a self-locking function when in use, so that the bolt assemblies are prone to falling off, which is not conducive to the use of the device. Utility Model Content

[0004] The purpose of the present invention is to provide a bolt assembly with a self-locking function to solve the problems raised in the above background technology.

[0005] A bolt assembly with a self-locking function includes a fixing bolt and a bolt body: the bolt body is arranged inside the fixing bolt, a one-way rotation assembly is arranged on the outer side of the upper end of the bolt body, and a self-locking assembly is arranged at the lower end of the bolt body.

[0006] Preferably, the one-way rotation component includes a limit column and a guide plate, the limit column is arranged at the upper end of the bolt body, the guide plate is arranged on the outside of the limit column, and the limit column, guide plate and bolt body are embedded in the interior of the fixing bolt.

[0007] When the device is in use, the bolt body is positioned by the limiting column and the guide plate, so that when the bolt body is installed, the fixing bolt can be used to drive the bolt body to rotate, thereby completing the installation of the bolt body.

[0008] Preferably, one side of the guide plate is an inclined surface, and the other side of the guide plate is a flat surface.

[0009] A slot is provided inside the fixing bolt, and the slot is correspondingly provided inside the guide plate. When the guide plate rotates forward, the plane of the guide plate contacts the slot, thereby driving the plane of the guide plate to rotate through the fixing bolt, and then driving the bolt body to rotate, thereby installing the bolt body.

[0010] After installation, when the fixing bolt rotates in the opposite direction, when there is no large pressing force, the slot will contact the curved surface of the guide plate, causing the guide plate and the fixing bolt to separate, thereby avoiding the reverse rotation of the bolt body caused by misoperation.

[0011] Preferably, the self-locking assembly includes a connecting column, a fixing plate, a fixing shaft and a locking plate. The connecting column is arranged at the lower end of the bolt body, and a fixing plate is arranged at equal angles on the outside of the connecting column. A fixed shaft is arranged for rotation inside the fixing plate, and a locking plate is arranged on the outside of the fixed shaft. The rotation angle range of the locking plate is 0-30°.

[0012] When the device is in use, when the bolt body rotates forward and embeds inward, the connecting column and the fixing plate cannot rotate relative to each other, and when the bolt body rotates reversely, the locking plate rotates outward, thereby preventing the bolt body from rotating.

[0013] Preferably, the locking plate is arc-shaped.

[0014] When the locking plate rotates forward, the inner wall of the outer surface rubs against the arc-shaped inner wall of the locking plate, so that the locking plate does not rotate. At the same time, the locking plate and the fixed plate are limited to each other, and the locking plate cannot rotate.

[0015] Preferably, a torsion spring is provided between the fixed shaft and the locking plate.

[0016] When the locking plate rotates in the opposite direction, the locking plate will rotate under the action of friction such as impurities, causing the locking plate to extend. At this time, the locking plate will contact the inner wall of the outside world, and the torsion spring will drive the locking plate to contract, thereby causing the locking plate to drive the bolt body to return to its original position.

[0017] The beneficial effects of the utility model are:

[0018] 1. When the device is in use, when the bolt body rotates in the opposite direction, the locking plate will rotate outward under the action of resistance, thereby increasing the resistance of the bolt body when rotating in the opposite direction, self-locking the bolt body, and the torsion spring will drive the locking plate to return to its original position, thereby driving the bolt body to return to its original position;

[0019] 2. When the device is in use, when the fixing bolt rotates in the forward direction, it will contact the plane of the guide plate, thereby effectively driving the bolt body to rotate. When the external pressure force is small to drive the fixing bolt to rotate, the fixing bolt will contact the curved side of the guide plate, thereby avoiding erroneous operation that drives the bolt body to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the guide plate of the present utility model;

[0024] Figure 4 This is a schematic diagram of the top cross-sectional structure of the connecting column of the utility model;

[0025] Figure 5 This is a schematic diagram of the installation structure of the fixing plate and the locking plate of the utility model.

[0026] In the figure: 1. fixing bolt; 2. limiting column; 3. guide plate; 4. bolt body; 5. connecting column; 6. fixing plate; 7. fixing shaft; 8. torsion spring; 9. locking plate. DETAILED DESCRIPTION

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

[0028] When implementing: Figure 1-5 As shown, a bolt assembly with a self-locking function includes a fixing bolt 1 and a bolt body 4: the bolt body 4 is arranged inside the fixing bolt 1, a one-way rotation assembly is arranged on the outer side of the upper end of the bolt body 4, and a self-locking assembly is arranged on the lower end of the bolt body 4.

[0029] The one-way rotation assembly includes a limit column 2 and a guide plate 3. The limit column 2 is arranged at the upper end of the bolt body 4. The guide plate 3 is arranged on the outside of the limit column 2. The limit column 2, the guide plate 3 and the bolt body 4 are embedded in the interior of the fixing bolt 1.

[0030] When the device is in use, the bolt body 4 is positioned by the limiting column 2 and the guide plate 3, so that when the bolt body 4 is installed, the fixing bolt 1 can be used to drive the bolt body 4 to rotate, thereby completing the installation of the bolt body 4.

[0031] One side of the guide plate 3 is an inclined surface, and the other side of the guide plate 3 is a flat surface.

[0032] A slot is provided inside the fixing bolt 1, and the slot is correspondingly provided inside the guide plate 3. When the guide plate 3 rotates forward, the plane of the guide plate 3 contacts the slot, thereby driving the plane of the guide plate 3 to rotate through the fixing bolt 1, and then driving the bolt body 4 to rotate, thereby installing the bolt body 4;

[0033] After installation, when the fixing bolt 1 rotates in the opposite direction, when there is no large pressing force, the slot will contact the arc surface of the guide plate 3, causing the guide plate 3 and the fixing bolt 1 to separate, thereby avoiding the reverse rotation of the bolt body 4 caused by misoperation.

[0034] The self-locking assembly includes a connecting column 5, a fixing plate 6, a fixing shaft 7 and a locking plate 9. The connecting column 5 is arranged at the lower end of the bolt body 4. The fixing plate 6 is arranged at equal angles on the outside of the connecting column 5. The fixing shaft 7 is arranged inside the fixing plate 6 for rotation. The locking plate 9 is arranged on the outside of the fixed shaft 7. The rotation angle range of the locking plate 9 is 0-30°.

[0035] When the device is in use, when the bolt body 4 rotates forward and embeds inward, the connecting column 5 and the fixing plate 6 cannot rotate relative to each other, and when the bolt body 4 rotates reversely, the locking plate 9 rotates outward, thereby preventing the bolt body 4 from rotating.

[0036] The locking plate 9 is arc-shaped.

[0037] When the locking plate 9 rotates forward, the inner wall of the outside will rub against the arc-shaped inner wall of the locking plate 9, so that the locking plate 9 will not rotate. At the same time, the locking plate 9 and the fixed plate 6 are limited to each other, and the locking plate 9 cannot rotate.

[0038] A torsion spring 8 is provided between the fixed shaft 7 and the locking plate 9 .

[0039] When the locking plate 9 rotates in the opposite direction, the locking plate 9 will rotate under the action of friction such as impurities, thereby causing the locking plate 9 to stretch. At this time, the locking plate 9 will contact the inner wall of the outside world, and the torsion spring 8 will drive the locking plate 9 to contract, thereby causing the locking plate 9 to drive the bolt body 4 to return to its original position.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bolt assembly with a self-locking function, characterized in that: It comprises a fixing bolt (1) and a bolt body (4): the bolt body (4) is arranged inside the fixing bolt (1), a one-way rotation component is arranged on the outer side of the upper end of the bolt body (4), and a self-locking component is arranged on the lower end of the bolt body (4).

2. The bolt assembly with self-locking function according to claim 1, characterized in that: The one-way rotation assembly comprises a limiting column (2) and a guide plate (3), wherein the limiting column (2) is arranged at the upper end of the bolt body (4), and the guide plate (3) is arranged on the outer side of the limiting column (2), and the limiting column (2), the guide plate (3) and the bolt body (4) are embedded in the interior of the fixing bolt (1).

3. The bolt assembly with self-locking function according to claim 2, characterized in that: One side of the guide plate (3) is an inclined surface, and the other side of the guide plate (3) is a flat surface.

4. The bolt assembly with self-locking function according to claim 1, characterized in that: The self-locking assembly comprises a connecting column (5), a fixing plate (6), a fixing shaft (7) and a locking plate (9), wherein the connecting column (5) is arranged at the lower end of the bolt body (4), the fixing plate (6) is arranged at an equal angle on the outside of the connecting column (5), the fixing shaft (7) is rotatably arranged inside the fixing plate (6), and the locking plate (9) is arranged on the outside of the fixing shaft (7), and the rotation angle range of the locking plate (9) is 0-30°.

5. The bolt assembly with self-locking function according to claim 4, characterized in that: The locking plate (9) is arc-shaped.

6. The bolt assembly with self-locking function according to claim 4, characterized in that: A torsion spring (8) is provided between the fixed shaft (7) and the locking plate (9).

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