Connecting structure of split combined type overedger shell

Abstract

The utility model discloses a split combined type overedger shell connecting structure which comprises a rear shell body and a front shell body, positioning holes are formed in the rear shell body and the front shell body in a penetrating mode, positioning pins are inserted into the positioning holes, the outer diameter of the positioning pins is the same as the inner diameter of the positioning holes, anti-loosening rods are arranged at the two ends of the positioning pins respectively, and fixing blocks are arranged in the positioning holes. A tightening cavity is formed in the fixing block and is in a horn shape, a through hole is formed in the inner wall of the tightening cavity, a mounting frame is arranged in the tightening cavity, at least two mounting grooves are formed in the mounting frame, the two mounting grooves are evenly distributed around the axis of the positioning hole, balls are arranged in the mounting grooves, an adjusting block is arranged on one side of the mounting frame, and a spring is arranged between the adjusting block and the mounting frame. By adjusting the size, the positioning pin can be conveniently inserted into and pulled out of the positioning hole, the balls on the mounting frame are matched with the tightening cavity, the anti-loosening rod inserted between the balls can be fixed, the anti-loosening rod can be prevented from falling off after being inserted, and the connection stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of connection positioning, especially relates to a split type combined overed machine shell connecting structure. BACKGROUND

[0002] The positioning hole is a hole processed on a part, and the positioning pin is a columnar metal piece matched with the positioning hole, and the position of the part can be determined during assembly through cooperation of the positioning hole and the positioning pin.

[0003] At present, the positioning hole and the positioning pin are assembled in an interference fit mode to realize positioning and anti-loosening, but the equipment assembled by this assembly process is troublesome to disassemble.

[0004] Therefore, we need to design a split type combined overed machine shell connecting structure to solve these problems. UTILITY MODEL CONTENTS

[0005] The utility model solves the problem of providing a split type combined overed machine shell connecting structure.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of:

[0007] A split type combined overed machine shell connecting structure, comprising a rear shell body and a front shell body, the rear shell body and the front shell body are provided with a positioning hole penetratingly arranged thereon, a positioning pin is inserted into the positioning hole, the outer diameter of the positioning pin is the same as the inner diameter of the positioning hole, the two ends of the positioning pin are respectively provided with an anti-loosening rod, a fixing block is arranged in the positioning hole, the fixing block is provided with a tightening cavity, the tightening cavity is trumpet-shaped, a through hole is arranged on the inner wall of the tightening cavity, an installation frame is arranged in the tightening cavity, the installation frame is provided with at least two installation grooves, the two installation grooves are uniformly distributed around the positioning hole axis, a ball is arranged in the installation groove, an adjusting block is arranged in the positioning hole on one side of the installation frame, and a spring is further arranged between the adjusting block and the installation frame.

[0008] Preferably, the adjusting block and the positioning hole are connected through thread cooperation.

[0009] In this way, the distance between the adjusting block and the fixing block can be adjusted through thread, so that the adjustment of the thrust applied to the installation frame by the spring is realized.

[0010] Preferably, the anti-loosening rod is provided with a first anti-loosening groove, and the inner wall of the tightening cavity is provided with a second anti-loosening groove.

[0011] In this way, the contact surface between the ball and the anti-loosening rod or the tightening cavity can be prevented from sliding.

[0012] Preferably, the material of the installation frame is iron.

[0013] In this way, when the front shell and the rear shell are disassembled, the unlocking by the special magnetic key is facilitated.

[0014] The utility model has the advantages and positive effects that:

[0015] The utility model discloses through the size adjustment of the positioning pin and the positioning hole, when the positioning pin inserts and draws out the positioning hole, is convenient, through the mutual cooperation of the ball on the mounting frame and the tightening cavity, can fix the anti -shake bar between the insertion ball, can prevent the anti -shake bar from falling off and drawing out after inserting, guarantees the stability of connection. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced to the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0017] Figure 1 It is the exploded structure schematic view of the rear shell and the front shell of the utility model;

[0018] Figure 2 It is the internal mechanism schematic view of positioning pin after the rear shell and the front shell of the utility model are spliced;

[0019] Figure 3 It is Figure 2 The structure enlarged view of A in

[0020] The following is the explanation of the reference signs:

[0021] 1, rear shell;2, front shell;3, positioning pin;4, anti -shake bar;5, positioning hole;6, fixed block;7, tightening cavity;8, mounting frame;9, ball;10, spring;11, first anti -shake groove;12, adjusting block;13, second anti -shake groove;14, through -hole;15, mounting groove. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Example 1: Figures 1-3 As shown, a connection structure of a split-type combined overlock machine casing includes a rear shell 1 and a front shell 2. A positioning hole 5 is provided on both the rear shell 1 and the front shell 2. A positioning pin 3 is inserted into the positioning hole 5. The outer diameter of the positioning pin 3 is the same as the inner diameter of the positioning hole 5. Anti-loosening rods 4 are provided at both ends of the positioning pin 3. A fixing block 6 is provided in the positioning hole 5. A tightening cavity 7 is provided on the fixing block 6. The tightening cavity 7 is trumpet-shaped. A through hole 14 is provided on the inner wall of the tightening cavity 7. A mounting bracket 8 is provided in the tightening cavity 7. The mounting bracket 8 is provided with at least two mounting grooves 15. The two mounting grooves 15 are evenly distributed around the axis of the positioning hole 5. Balls 9 are provided in the mounting grooves 15. An adjusting block 12 is provided in the positioning hole 5 on one side of the mounting bracket 8. A spring 10 is also provided between the adjusting block 12 and the mounting bracket 8.

[0026] Specifically, the adjustment block 12 is connected to the positioning hole 5 through threaded connection. In this way, the distance between the adjustment block 12 and the fixed block 6 can be adjusted through the thread, thereby adjusting the thrust applied by the spring 10 to the mounting bracket 8.

[0027] Specific, anti-loosening rod 4 is provided with the first anti-loosening groove 11, the inner wall of the tightening cavity 7 is provided with the second anti-loosening groove 13, so as to prevent the contact surface of the ball 9 and the anti-loosening rod 4 or the tightening cavity 7 from sliding.

[0028] Specific, the material of the mounting bracket 8 is iron, so that when the front shell 2 and the rear shell 1 are separated, it is convenient to be unlocked by a special magnetic key.

[0029] The working process of the embodiment is as follows: Figure 1 As shown in the figure, first, one end of the positioning pin 3 is inserted, because the positioning pin 3 has a positioning function, after one end of the positioning pin 3 is inserted into the positioning hole 5 on the rear shell 1 or the front shell 2 and is attached to the fixed block 6, the other end needs to be located outside the positioning hole 5, then the front shell 2 and the rear shell 1 are attached, so that the other end of the positioning pin 3 is inserted into the positioning hole 5 on the front shell 2.

[0030] During the insertion of the positioning pin 3, the anti-loosening rod 4 at the end of the positioning pin 3 will pass through the through hole 14 on the fixed block 6 and be inserted between the balls 9 on the mounting bracket 8, as shown in the figure, Figure 3 During the insertion of the anti-loosening rod 4, the mounting bracket 8 will first be pushed to move right as a whole, and when the mounting bracket 8 moves right, the spring 10 will be compressed, at the same time, the inner diameter of the tightening cavity 7 will become larger, and the distance between the balls 9 will also become larger, until the anti-loosening rod 4 is inserted between the balls 9, the mounting bracket 8 will stop moving right.

[0031] At this time, if the positioning pin 3 is subjected to a left pulling force, the balls 9 will move left, and the inner diameter of the left tightening cavity 7 will gradually decrease, so the balls 9 will press the anti-loosening rod 4, so that the resistance of the anti-loosening rod 4 increases, avoiding the anti-loosening rod 4 from being pulled out of the balls 9.

[0032] When the equipment needs to be maintained, the magnetic key is inserted into the positioning hole 5, and when the magnetic key approaches the adjusting block 12, an attractive force will be generated on the iron mounting bracket 8, so that the mounting bracket 8 moves right, after the mounting bracket 8 moves right, the balls 9 on the mounting bracket 8 will no longer press the anti-loosening rod 4, at this time, the positioning pin 3 can be pulled left to pull the anti-loosening rod 4 out of the through hole 14.

[0033] The above describes one embodiment of the utility model in detail, but the content is only a preferred embodiment of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent changes and improvements within the scope of the utility model application should still belong to the patent coverage of the utility model.

Claims

1. A connecting structure of a split combined overlock machine housing, comprising a rear housing (1) and a front housing (2), characterized in that: The rear shell (1) and the front shell (2) are provided with positioning holes (5) penetratingly arranged, positioning pins (3) are inserted into the positioning holes (5), the outer diameter of the positioning pins (3) is the same as the inner diameter of the positioning holes (5), the two ends of the positioning pins (3) are respectively provided with anti-loosening rods (4), the positioning holes (5) are provided with fixed blocks (6), the fixed blocks (6) are provided with tightening cavities (7), the tightening cavities (7) are trumpet-shaped, the inner walls of the tightening cavities (7) are provided with through holes (14), the tightening cavities (7) are provided with mounting racks (8), the mounting racks (8) are provided with at least two mounting grooves (15), the two mounting grooves (15) are uniformly distributed around the axis of the positioning holes (5), the mounting grooves (15) are provided with rolling balls (9), the positioning holes (5) on one side of the mounting rack (8) are provided with adjusting blocks (12), and springs (10) are further arranged between the adjusting blocks (12) and the mounting rack (8).

2. The connecting structure of the split combined overlock machine cabinet according to claim 1, characterized in that: The adjusting block (12) is connected with the positioning hole (5) through threaded cooperation.

3. The connecting structure of the split combined overlock machine cabinet according to claim 1, characterized in that: The anti-loosening rods (4) are provided with first anti-loosening grooves (11), and the inner walls of the tightening cavities (7) are provided with second anti-loosening grooves (13).

4. The connecting structure of the split combined overlock machine cabinet according to claim 1, characterized in that: The material of the mounting rack (8) is iron.

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