Multipurpose bolt thread sleeve

Abstract

The utility model discloses a multi-purpose bolt thread sleeve, and particularly relates to the field of bolt thread sleeves, the multi-purpose bolt thread sleeve comprises a base body, the top of the base body is provided with a mounting groove, the inside of the mounting groove is provided with internal threads, and the top of the base body is provided with a thread sleeve body. When the thread sleeve body is installed in the base body, the bottom of the inclined connecting rod gradually makes contact with the surface of the top of the base body, and when a ball assembly at the bottom of the connecting rod makes contact with the surface of the base body, along with continuous downward movement of the thread sleeve body, the connecting rod inclines outwards to drive a moving ring to move downwards, and a pair of connecting bolts is driven to move downwards to be inserted into an installation groove; therefore, the installation of the thread sleeve body is completed. The screw sleeve body is installed in the base body, installation of the connecting plug pin is completed at the same time, additional installation operation is reduced, the installation time is greatly shortened, the connecting plug pin is slowly inserted into the installation groove, and therefore the effect that the plug pin is evenly stressed and stably installed is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of latch screw sleeves, in particular to a multi-purpose latch screw sleeve. Background Art

[0002] A latch screw sleeve is a special fastener with internal and external threads and 4 or 2 latch keys on the external threads. The latch screw sleeve is inserted into the tapped bottom hole, and then the 4 latch keys are pressed in to provide a strong fastening effect. When installing components on large aluminum alloy structural parts, it is often difficult to ensure the installation reliability of the components by directly machining threaded holes on the aluminum alloy substrate. For this reason, stainless steel latch screw sleeves are usually installed on the threaded holes of the aluminum alloy substrate, and four latch keys are pressed in to destroy the substrate thread pair to improve the strength of the threaded holes and prevent loosening.

[0003] When installing the latch screw sleeve, the sleeve body is first installed using a tool, and then the latch is struck with a hammer to embed the latch into the interior of the base body to increase the stability of the sleeve. However, when the latch is struck with a hammer, the latch may bend due to uneven force, resulting in failure in the installation of the latch screw sleeve body. Therefore, the inventors provide a multi-purpose latch screw sleeve to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-purpose latch screw sleeve, which can achieve the effect of uniform force on the latch and stable installation.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A multi-purpose latch screw sleeve comprises a base, a mounting groove is provided on the top of the base, an internal thread is provided inside the mounting groove, a screw sleeve body is provided on the top of the base, a driving mechanism is provided on the top of the screw sleeve body, and a bolt is provided on the top of the screw sleeve body; a slide groove is provided on the left and right sides of the screw sleeve body, and a connecting pin is slidably connected inside the slide groove; the top of the screw sleeve body is rotatably connected to a top ring through a bearing, two connecting pins pass through the top ring, and the tops of the two connecting pins are fixedly connected to a movable ring, the left and right sides of the movable ring are respectively fixedly connected to a connecting frame, and the interior of the connecting frame is rotatably connected to a reversible connecting rod through a movable shaft; a connecting piece is provided on the left and right sides of the top ring, and one side of the connecting piece is connected to the connecting rod.

[0007] As a further solution of the present invention: the connecting member includes a hollow tube fixedly connected to the top ring, the interior of the hollow tube is slidably connected to an extension tube, and the outer side of the extension tube is hinged to the corresponding side link through a hinge.

[0008] As a further solution of the present invention, the internal cross-section of the hollow tube is adapted to the side size of the extension tube.

[0009] As a further solution of the present invention: a ball assembly is installed at the bottom of the connecting rod.

[0010] As a further solution of the present invention: the cross section of the internal thread is triangular.

[0011] As a further solution of the present invention: the connecting rod is made of alloy material. As a further solution of the present invention:

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The multi-purpose latch screw sleeve has the advantages that when the screw sleeve body is installed into the interior of the base, the bottom of the inclined connecting rod will gradually contact the top surface of the base, and when the ball assembly at the bottom of the connecting rod contacts the surface of the base, as the screw sleeve body continues to move downward, the connecting rod is tilted outward with the connection point of the connecting frame as a fulcrum, thereby driving the moving ring to move downward, driving a pair of connecting pins to move downward and insert into the interior of the installation groove, and when the connecting rod tilts outward, it drives the extension tube to slide along the interior of the hollow tube until the top ring contacts the surface of the base, thereby completing the installation of the screw sleeve body, and at the same time, the moving ring fits the surface of the top ring, so that the connecting pins are inserted into the interior of the installation groove. The installation of the connecting pins by installing the screw sleeve body into the base at the same time reduces additional installation operations and greatly reduces installation time, and the connecting pins are slowly inserted into the interior of the installation groove, thereby achieving the effect of uniform force and stable installation of the pins.

[0014] Furthermore, this multi-purpose latch screw insert uses a tool to first screw the insert body into the mounting slot, then hammers the connecting pin into the slot, further enhancing the stability of the connection between the insert body and the base. Finally, a bolt is screwed into the insert body to complete the connection. This latch screw insert is primarily used to repair damaged internal threads and strengthen them, making it particularly suitable for applications requiring high thread strength in military, aerospace, railway locomotives, and vibration machinery. It not only solves the problem of thread damage but also allows thread re-seats to be created, allowing previously unusable threads to be used again, thus achieving a multi-purpose effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a multi-purpose latch screw sleeve;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of a base body in a multi-purpose latch screw sleeve;

[0017] Figure 3This is a schematic diagram of the driving mechanism structure of a multi-purpose latch screw sleeve;

[0018] Figure 4 It is a cross-sectional schematic diagram of a driving mechanism in a multi-purpose latch screw sleeve;

[0019] In the figure: 10, base; 11, mounting groove; 12, internal thread; 13, screw sleeve body; 131, slide groove; 14, bolt; 20, driving mechanism; 201, top ring; 202, connecting pin; 203, moving ring; 204, connecting frame; 205, connecting rod; 206, ball assembly; 207, connecting piece; 2071, hollow tube; 2072, extension tube. DETAILED DESCRIPTION

[0020] like Figure 1 、 2 As shown, a multi-purpose latch screw sleeve includes a base 10, a mounting groove 11 is provided on the top of the base 10, an internal thread 12 is provided inside the mounting groove 11, a screw sleeve body 13 is provided on the top of the base 10, a driving mechanism 20 is provided on the top of the screw sleeve body 13, and a bolt 14 is provided on the top of the screw sleeve body 13.

[0021] Preferably, the cross section of the internal thread 12 is triangular, and the triangular thread shape can generate greater friction at the connection, thereby increasing the tensile strength of the connection. This design makes the threaded connection more stable when subjected to external forces and is not easy to loosen or fall off.

[0022] Furthermore, the left and right sides of the screw sleeve body 13 are respectively provided with a slide groove 131, and the interior of the slide groove 131 is slidably connected with a connecting pin 202. When in use, the screw sleeve body 13 is first screwed into the interior of the installation groove 11 using a tool, and then the connecting pin 202 is hammered into the interior of the installation groove 11 using a hammer to further enhance the stability of the connection between the screw sleeve body 13 and the base 10. Finally, the bolt 14 is screwed into the interior of the screw sleeve body 13 to complete the connection between the bolt 14 and the base 10. The pin screw sleeve is mainly used to repair damaged internal threads 12 and strengthen the internal threads 12. It is particularly suitable for products with high thread strength requirements such as military, aerospace, railway locomotives, and vibration machinery. It not only solves the problem of thread damage, but also allows the thread seat to be re-established, allowing the originally unusable thread to be reused. Thus, it achieves a multi-purpose effect.

[0023] refer to Figure 3 、 4The top of the screw sleeve body 13 is rotatably connected to a top ring 201 through a bearing, the two connecting pins 202 pass through the top ring 201, and the tops of the two connecting pins 202 are fixedly connected to a movable ring 203. The left and right sides of the movable ring 203 are respectively fixedly connected to connecting frames 204, and the interior of the connecting frame 204 is rotatably connected to a reversible connecting rod 205 through a movable shaft; the left and right sides of the top ring 201 are respectively provided with connecting pieces 207, and one side of the connecting piece 207 is connected to the connecting rod 205.

[0024] Preferably, the connecting rod 205 is made of an alloy material with relatively high strength.

[0025] Preferably, the connecting member 207 includes a hollow tube 2071 fixedly connected to the top ring 201, an extension tube 2072 is slidably connected inside the hollow tube 2071, and the outer side of the extension tube 2072 is hinged to the corresponding side link 205 through a hinge.

[0026] Preferably, the inner cross-section of the hollow tube 2071 is adapted to the side size of the extension tube 2072 , thereby achieving a guiding effect when the extension tube 2072 moves.

[0027] Furthermore, a ball assembly 206 is installed at the bottom of the connecting rod 205; when the screw sleeve body 13 is installed into the interior of the base 10, the inclined bottom of the connecting rod 205 will gradually contact the top surface of the base 10. When the ball assembly 206 at the bottom of the connecting rod 205 contacts the surface of the base 10, as the screw sleeve body 13 continues to move downward, the connecting rod 205 is tilted outward with the connection point of the connecting frame 204 as the fulcrum, and the ball assembly 206 slides along the surface of the base 10 to reduce friction, driving the movable ring 203 to move downward, driving a pair of connecting pins 202 to move downward and insert into the interior of the installation groove 11, and when the connecting rod 205 tilts outward, it drives the extension tube 2072 to slide along the inside of the hollow tube 2071 until the top ring 201 contacts the surface of the base 10, thereby completing the installation of the screw sleeve body 13, and at the same time, the movable ring 203 fits the surface of the top ring 201, so that the connecting pin 202 is inserted into the interior of the installation groove 11.

[0028] The working principle of the present invention is: when the screw sleeve body 13 is installed into the interior of the base 10, the bottom of the inclined connecting rod 205 will gradually contact the top surface of the base 10. When the ball assembly 206 at the bottom of the connecting rod 205 contacts the surface of the base 10, as the screw sleeve body 13 continues to move downward, the connecting rod 205 is tilted outward with the connection point of the connecting frame 204 as the fulcrum, thereby driving the movable ring 203 to move downward, driving a pair of connecting pins 202 to move downward and insert into the interior of the installation groove 11, and when the connecting rod 205 tilts outward, it drives the extension tube 2072 to slide along the inside of the hollow tube 2071 until the top ring 201 contacts the surface of the base 10, thereby completing the installation of the screw sleeve body 13, and at the same time, the movable ring 203 fits the surface of the top ring 201, so that the connecting pin 202 is inserted into the interior of the installation groove 11. By installing the screw sleeve body 13 into the base 10 and completing the installation of the connecting pin 202 at the same time, additional installation operations are reduced, and the installation time is greatly reduced. In addition, since the force point is on the movable ring 203, the connecting pin 202 is slowly and steadily inserted into the installation groove 11, avoiding the problem of the connecting pin 202 being bent due to the installation by knocking.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A multi-purpose latch screw sleeve, comprising a base (10), a mounting groove (11) is provided on the top of the base (10), an internal thread (12) is provided inside the mounting groove (11), a screw sleeve body (13) is provided on the top of the base (10), a driving mechanism (20) is provided on the top of the screw sleeve body (13), and a bolt (14) is provided on the top of the screw sleeve body (13); a sliding groove (131) is provided on the left and right sides of the screw sleeve body (13), and a connecting pin (202) is slidably connected inside the sliding groove (131); characterized in that The top of the screw sleeve body (13) is rotatably connected to a top ring (201) via a bearing, two connecting pins (202) penetrate the top ring (201), and the tops of the two connecting pins (202) are fixedly connected to a movable ring (203). The left and right sides of the movable ring (203) are respectively fixedly connected to connecting frames (204), and the interior of the connecting frame (204) is rotatably connected to a reversible connecting rod (205) via a movable shaft; and connecting pieces (207) are respectively provided on the left and right sides of the top ring (201), and one side of the connecting piece (207) is connected to the connecting rod (205).

2. A multi-purpose latch screw according to claim 1, characterized in that: The connecting member (207) comprises a hollow tube (2071) fixedly connected to the top ring (201); an extension tube (2072) is slidably connected inside the hollow tube (2071); and the outer side of the extension tube (2072) is hinged to the corresponding side link (205) via a hinge.

3. A multi-purpose latch screw according to claim 2, characterized in that: The internal cross-section of the hollow tube (2071) is adapted to the side size of the extension tube (2072).

4. A multi-purpose latch screw according to claim 1, characterized in that: A ball assembly (206) is installed at the bottom of the connecting rod (205).

5. The multi-purpose latch screw according to claim 1, characterized in that: The cross section of the internal thread (12) is triangular.

6. The multi-purpose latch screw according to claim 1, characterized in that: The connecting rod (205) is made of alloy material.

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