Quick reversing inner hexagonal sleeve with bidirectional locking structure and connecting rod

Abstract

The utility model relates to mechanical assembly technical field especially relates to a quick reversing inner hexagonal sleeve and connecting rod with bidirectional locking structure. Including sleeve main part and connecting rod body, the sleeve main part is provided with the inner hexagonal hole, and the diagonal place of the inner wall of the top side of the cylinder end is all set up through -hole, and the step -difference hole is formed to the drill bit back drilling in the through -hole, and the bottom has the undrilled section reserved, the through -hole is assembled with the steel ball and the elastic steel sheet of U -shaped plate structure, and the elastic steel sheet is attached to the outside of the through -hole, and the axial compression force is added to the steel ball, makes the steel ball partial convex in the inner hexagonal hole, the connecting rod body one end is the hexagonal drive end of H8mm, and the drive end is inserted to the sleeve main part inner wall, the hexagonal drive end is equipped with a ring -shaped clamping bead groove in the top end, and the top end of the hexagonal drive end still is provided with one embedded magnet, and the other end of the connecting rod body is set up as 1 / 4 inch hexagonal handle end. The utility model solves the technical problem that: the sleeve and connecting rod structure are in the assembly reliability general, and the operation of the end head replacement is complicated.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly technology, and in particular to a quick-reversing hexagonal sleeve and connecting rod with a bidirectional locking structure. Background Technology

[0002] Sleeve extension rods are widely used for connecting power tools and fasteners. They are widely used in machinery, automotive and other fields. They are usually set as detachable assembly components for assembling mechanical tooling.

[0003] Most existing connecting rod structures are single-ended, with one end directly inserted into the corresponding sleeve. When it is necessary to replace the sleeve with a different size or specification, the entire assembly must be disassembled and reconnected, which is cumbersome and affects work efficiency. At the same time, traditional sleeves and connecting rods usually lack an effective mechanical locking mechanism and rely solely on interference fit for fixation. Under high-frequency vibration or impact load conditions, they are prone to loosening, posing a significant safety hazard. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the assembly reliability of the sleeve and connecting rod structure is generally poor and the operation of changing the end is cumbersome.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a quick-reversing hexagonal sleeve and connecting rod with a bidirectional locking structure, including a sleeve body and a connecting rod body. The sleeve body is provided with a penetrating hexagonal hole, and through holes are opened at opposite corners from the inner wall of the top side of the sleeve end. A stepped hole is formed in the through hole by back-drilling with a drill bit, and an un-drilled section is reserved at the bottom. The through hole is equipped with a steel ball and a U-shaped plate-like elastic steel sheet, and the elastic steel sheet is attached to the outside of the through hole and applies an axial clamping force to the steel ball, so that part of the steel ball protrudes into the hexagonal hole. One end of the connecting rod body is a hexagonal drive end with an H8mm diameter, which is inserted into the inner wall of the sleeve body; the hexagonal drive end has an annular bead groove at a distance from the top, and an embedded magnet is also provided at the top of the hexagonal drive end; the other end of the connecting rod body is a 1 / 4-inch hexagonal shank end.

[0006] As a further improvement of this utility model, the elastic steel sheet is made of SUS304 stainless steel, with a pre-compression deformation of 0.1mm, providing 5-8N elastic force; the exposed height of the steel ball is 0.2mm, and the elastic steel sheet is disposed on the outside of the through hole.

[0007] As a further improvement of this utility model, the groove depth of the annular bead groove is 1.0 mm and the groove width is 2.0 mm; the magnet is set as a neodymium iron boron permanent magnet for bolt attraction.

[0008] As a further improvement of this utility model, the annular retaining groove cooperates with the steel ball in the sleeve to form a two-way mechanical locking structure, and the steel ball is inserted into the annular retaining groove during insertion.

[0009] As a further improvement of this utility model, the sleeve body has a length of 19.5mm and is made of S2 alloy steel.

[0010] The beneficial effects of this utility model are as follows: The connecting rod adopts a double-headed structure, and either end can be inserted into the working end of the sleeve to achieve interchangeable connection in both directions, avoiding frequent disassembly and reassembly, saving overall operation time, significantly improving work efficiency, and enabling rapid reversal. The sleeve is equipped with a two-way mechanical locking structure consisting of steel balls and an elastic clamping component, which, together with the annular groove on the outer circumference of the connecting rod, achieves high-strength locking; simultaneously, magnetic attraction can fix the bolts, and this double protection increases the pull-out force to ≥300N, far exceeding the ≤80N of traditional sleeves, achieving a double anti-pull-out structure. Attached Figure Description

[0011] Figure 1 This is an overall schematic diagram of a quick-reversing hexagonal sleeve and connecting rod with a bidirectional locking structure according to this utility model; Figure 2 This is a partial view of a quick-reversing hexagonal sleeve and connecting rod with a bidirectional locking structure according to this utility model. Figure 3 This is a diagram showing the connecting rod body of a quick-reversing hexagonal sleeve with a bidirectional locking structure and a connecting rod according to this utility model.

[0012] As shown in the figure: 1. Sleeve body; 2. Steel ball; 3. Elastic steel sheet; 4. Connecting rod body; 41. Hexagonal drive end; 42. Annular ball retaining groove; 43. Hexagonal handle end; 5. Magnet. Detailed Implementation

[0013] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0014] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0015] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0016] This utility model provides the following: Figure 1-3 As shown, a quick-reversing hexagonal socket sleeve and connecting rod with a bidirectional locking structure are disclosed. The sleeve body 1 comprises a sleeve body 1 and a connecting rod body 4. The sleeve body 1 is 19.5 mm long and made of S2 alloy steel. An 8 mm hexagonal socket hole is provided through the sleeve body 1. Through holes with a diameter of 3.1 mm are provided at diagonal points 9.75 mm from the top of the sleeve end. A stepped hole is formed within the through hole by back-drilling with a 3.3 mm diameter drill bit. A 0.3 mm un-drilled section is reserved at the bottom for limiting the movement. A 3.2 mm steel ball 2 and a 0.5 mm thick U-shaped elastic steel sheet 3 are fitted into the through hole. The elastic steel sheet 3 is attached to the outside of the through hole and applies axial clamping force to the steel ball 2, causing part of the steel ball 2 to protrude into the hexagonal socket hole, forming a bidirectional locking mechanism. The elastic steel sheet 3 is made of SUS304 stainless steel, with a pre-compression deformation of 0.1mm, providing 5-8N elastic force; the exposed height of the steel ball 2 is 0.2mm, and the elastic steel sheet 3 is set on the outside of the through hole.

[0017] As attached Figure 1 , 3 As shown, one end of the connecting rod body 4 is a hexagonal drive end 41 with an H8mm diameter, which is inserted into the inner wall of the sleeve body 1. The hexagonal drive end 41 has an annular ball retaining groove 42 at a distance from its top, and an embedded magnet 5 is also provided at the top of the hexagonal drive end 41. The other end of the connecting rod body 4 is a 1 / 4-inch hexagonal shank end 43, used for connecting power tools. The annular ball retaining groove 42 has a groove depth of 1.0mm and a groove width of 2.0mm. The magnet 5 is a neodymium iron boron permanent magnet for attracting bolts. The annular ball retaining groove 42 cooperates with the steel ball 2 inside the sleeve to form a two-way mechanical locking structure. When inserted, the steel ball 2 is engaged in the annular ball retaining groove 42.

[0018] Working Principle: In specific implementation, this utility model provides a quick-reversing hexagonal socket and connecting rod with a bidirectional locking structure, including a socket body 1 and a connecting rod body 4. During use, the socket body 1 has a 3.1mm diameter through hole diagonally located in the middle of its inner wall (9.75mm from the end face). A 3.3mm diameter drill bit is used to drill back 3.3mm, leaving a 0.3mm gap at the bottom for the steel ball 2 to engage. The operator can insert one end of the connecting rod body 4 (H8mm hexagonal drive end 41) into the hexagonal hole 11 of the socket body 1. The socket body 1 has two elastic locking points at diagonal positions on its inner wall, specifically including a through hole 12, a steel ball 2, and an elastic steel sheet 3. During the insertion of the connecting rod, the 0.5mm thick elastic steel sheet presses against the 3.2mm diameter steel ball. Under the action of the elastic steel sheet 3, the steel ball 2 protrudes radially and engages in the annular ball-locking groove 42 on the outer periphery of the connecting rod drive end 41, achieving mechanical limiting and locking.

[0019] Meanwhile, one end of the connecting rod body 4 is an H8mm hexagonal drive end 41 (compatible with the sleeve body 1), with an annular ball retaining groove 42 (1.0mm deep, 2.0mm wide) 6mm from the top; the other end is a 1 / 4-inch (6.35mm) hexagonal handle 43 (compatible with power tools); a neodymium iron boron strong magnet is embedded at the top of the drive end. The magnet 5 at the top of the drive end provides effective attraction force, which can actively attract metal bolts of M6 and below, preventing them from falling off accidentally. During the reversing operation, the operator only needs to turn the connecting rod around and insert it into the other end of the sleeve body 1 in the opposite direction to complete the reversing connection. Through the combination of steel ball retaining point and magnetic attraction, bidirectional insertion, reliable locking and quick replacement are achieved in a coordinated operation.

[0020] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick-reversing hexagonal sleeve with a bidirectional locking structure and a connecting rod, comprising a sleeve body (1) and a connecting rod body (4), characterized in that: The sleeve body (1) is provided with an internal hexagonal hole, and through holes are provided at the diagonal points of the inner wall of the top side of the sleeve end. A stepped hole is formed by back-drilling with a drill bit in the through hole, and an un-drilled section is reserved at the bottom. The through hole is equipped with a steel ball (2) and an elastic steel sheet (3) with a U-shaped plate structure. The elastic steel sheet (3) is attached to the outside of the through hole and applies an axial clamping force to the steel ball (2), so that part of the steel ball (2) protrudes into the internal hexagonal hole. One end of the connecting rod body (4) is a hexagonal drive end (41) with an H8mm diameter, which is inserted into the inner wall of the sleeve body (1). The hexagonal drive end (41) has an annular bead groove (42) at a distance from the top end. The top end of the hexagonal drive end (41) is also provided with an embedded magnet (5). The other end of the connecting rod body (4) is a 1 / 4-inch hexagonal shank end (43).

2. The quick-reversing hexagonal sleeve and connecting rod with a bidirectional locking structure according to claim 1, characterized in that: The elastic steel sheet (3) is made of SUS304 stainless steel, with a pre-compression deformation of 0.1 mm, providing 5-8 N of elastic force; the exposed height of the steel ball (2) is 0.2 mm, and the elastic steel sheet (3) is set on the outside of the through hole.

3. The quick-reversing hexagonal sleeve and connecting rod with a bidirectional locking structure according to claim 1, characterized in that: The annular bead groove (42) has a groove depth of 1.0 mm and a groove width of 2.0 mm; the magnet (5) is a neodymium iron boron permanent magnet for bolt adsorption.

4. A quick-reversing hexagonal sleeve and connecting rod with a bidirectional locking structure according to claim 1, characterized in that: The annular bead groove (42) and the steel ball (2) inside the sleeve cooperate to form a two-way mechanical locking structure, and the steel ball (2) is inserted into the annular bead groove (42) during insertion.

5. A quick-reversing hexagonal sleeve and connecting rod with a bidirectional locking structure according to claim 1, characterized in that: The sleeve body (1) is 19.5mm long and is made of S2 alloy steel.

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