CN115807811A - A Fastening Device with Simple Structure for Tolerance Compensation - Google Patents

Abstract

The invention provides a tolerance compensation fastening device with a simple structure, which includes a fixing frame: one end of the fixing frame fits the hole of the object to be connected, and a corresponding connection hole is opened, and the other end is detachably connected with the buckle structure; the buckle limit Cap: One end is slidably connected and passes through the connecting hole, and is slidably connected with the hole of the object to be connected. The other end is provided with a limit post at the opposite corner, and a limit protrusion is provided on the outside of the end of the limit post. The limit protrusion is larger than the connection hole; Limit screw: the head of the limit screw is equipped with a rotating clamping structure, which can pass through the limiting column and deflect on the buckle limit cap; buckle structure: the buckle structure is detachably connected with the fixing frame, There is a through hole in the middle of the buckle structure, and a guide block is provided on the side of the through hole facing the fixed frame; nut: it is located on the other side of the through hole of the buckle structure and connected with the limit screw, which is used for the current tolerance compensation. The structure of the fastening device is relatively complicated. , Technical problems with high production costs.

Description

A fastening device with simple structure for tolerance compensation

technical field

The invention mainly relates to the technical field of fasteners, in particular to a tolerance compensation fastening device with a simple structure.

Background technique

The fasteners that are often used in our daily life are bolts and nuts. This fastener has the advantages of easy disassembly and simple use. However, in other industries, simple bolts and nuts cannot achieve the purpose of connection. For example, some connection holes It is a square groove, and there is no good nut to cooperate with it, so the purpose of connection cannot be achieved.

Therefore, in order to solve the problem that square holes are difficult to connect with specified parts, tolerance compensation fastening devices have been developed on the market, such as the tolerance compensation fastening device with extended tolerance compensation and simpler and faster fastening with patent number 201880055310 . It can connect two vehicle parts very well.

The inventor found the following defects during the operation of the specific embodiment:

In the prior art represented by the above-mentioned patents, although two vehicle parts can be connected, the overall mechanism is relatively complicated and consists of multiple monomers. Therefore, the cost of making this workpiece is high, and the degree of difficulty in making it is also high. .

Contents of the invention

The technical problem to be solved by the invention

The present invention provides a tolerance compensation fastening device with a simple structure to solve the technical problems in the above-mentioned background art that the structure of the current tolerance compensation fastening device is relatively complicated and the production cost is high.

Technical solutions

In order to achieve the above purpose, the technical solution provided by the present invention is: a tolerance compensation fastening device with a simple structure, including a fixing frame: one end of the fixing frame fits with the hole of the object to be connected, and a corresponding connecting hole is opened, and the other end It is detachably connected with the buckle structure; the buckle limit cap: one end is slidably connected and passes through the connecting hole, and is slidably connected with the hole of the object to be connected. There is a limit protrusion on the outside of the part, and the limit protrusion is larger than the connecting hole; limit screw: the head of the limit screw is provided with a rotating locking structure, and the rotating locking structure can pass through the limiting The position column is deflected on the buckle limit cap; buckle structure: the buckle structure is detachably connected to the fixing frame, and a through hole is opened in the middle of the buckle structure, and the through hole faces the side of the fixing frame A guide block is provided; a nut: located on the other side of the through hole of the buckle structure and connected with the limit screw.

Further, the end of the guide block is a stepped protrusion, and the rotation locking structure can rotate and move on the stepped protrusion.

Further, the fixing frame includes a fixing plate, and the fixing plate is provided with a locking groove, and the locking groove is engaged with the buckle structure, and the outer side of the fixing plate is close to the hole of the object to be connected, and the Four arc-shaped plates are arranged symmetrically on the inner side of the fixed plate, and the locking slots are opened at the intersections of two arc-shaped plates.

Further, the rotation locking structure includes but not limited to a straight shape, a triangle, a cross, and a square.

Further, the rotating clamping structure is in the shape of a line, and both ends of the rotating clamping structure are flush with the corners of the buckle limiting cap.

Further, a triangular locking protrusion is provided on the inner side of the buckle limiting cap.

Further, the rotation direction of the nut is the rotation direction of the rotation locking structure.

Further, part of the screw rod of the limit screw located on the inside of the fixing frame and the buckle structure is in a straight face, and the inner surface of the guide block that cooperates with it is a smooth surface.

Further, the limit screw principle has a rotation slot at the end of the rotation locking structure.

Further, the bottom of the stepped protrusion is arranged on a plane.

Beneficial effect

Compared with the prior art, the technical solution provided by the invention has the following beneficial effects:

The invention has a reasonable design. When working, all the structures are assembled, the fixing frame is placed in the first connector part, and then the first connector part is placed close to the square hole of the second connector part, and finally the nut is rotated to make the rotating clamp The position structure slides out of the buckle limit cap, and the exposed position structure cooperates with the nut to lock the two connecting parts. The structure of the device is low in cost and has a good locking effect.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the local structure schematic diagram of the present invention;

Fig. 3 is another partial structure schematic diagram of the present invention;

Fig. 4 is a schematic structural view of the fixing frame of the present invention;

Fig. 5 is a schematic diagram of the structure of the stepped protrusion of the present invention;

Fig. 6 is a schematic diagram of the structure of the triangular locking protrusion of the present invention;

Fig. 7 is a structural schematic diagram of the details of the limit screw and the clamping structure of the present invention.

reference sign

1. Fixed frame; 101. Fixed plate; 102. Card slot; 103. Arc plate; 2. Hole; 3. Connection hole; 4. Buckle structure; 5. Buckle limit cap; 51. Triangular card position Protrusion; 6. Limit post; 7. Limit protrusion; 8. Limit screw; 81. Straight face; 82. Smooth surface; 83. Rotation groove; 84. Plane; 9. Locking structure; 10. Through hole ; 11, guide block; 111, step protrusion.

Detailed ways

In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present invention are shown, however, the present invention can be realized in many different forms and is not limited herein The described embodiments are, on the contrary, provided so that the disclosure of the invention will be thorough.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixed", "installed" and other terms should be understood in a broad sense, for example, it can be a fixed connection, or It can be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Example

Referring to accompanying drawings 1-6, a tolerance compensation fastening device with a simple structure includes a fixed frame 1: one end of the fixed frame 1 fits with the hole 2 of the object to be connected, and a corresponding connection hole 3 is opened, and the other end is connected with the card The buckle structure 4 is detachably connected; the buckle limit cap 5: one end is slidably connected and passes through the connecting hole 3, and is slidably connected with the hole 2 of the object to be connected. The outer side of the end of the position post 6 is provided with a limit protrusion 7, and the limit protrusion 7 is larger than the connecting hole 3; limit screw 8: the head of the limit screw 8 is provided with a rotating locking structure 9, the The rotating locking structure 9 can pass through the limiting column 6 and deflect on the buckling limiting cap 5; buckle structure 4: the buckle structure 4 is detachably connected to the fixed frame 1, and the buckle There is a through hole 10 in the middle of the structure 4, and the through hole 10 is provided with a guide block 11 facing the side of the fixing frame 1; nut: located on the other side of the through hole 10 of the buckle structure 4 and connected with the stop screw 8 .

This device can be used for the connection between two automobile sheet metals, and can also be used for the connection of other materials. When working, the fixing frame 1 is attached to the sheet metal material to be connected, and it is attached to the hole 2 of the sheet metal to be connected. After the buckle limit cap 5 is passed through the hole 2 through the fixing frame 1, the rotation locking structure 9 of the limit screw 8 is pushed against the inner side of the limit column 6 of the buckle limit cap 5, and finally the nut and the limit The position screw 8 is rotated and connected, so that the rotating clamping structure 9 extends out of the buckle limit cap 5, and is locked with the sheet metal to be connected. The connected sheet metal is locked tightly.

The end of the guide block 11 is a stepped protrusion 111, and the rotating locking structure 9 can rotate and move on the stepped protrusion. The corner line position is located at the bottom of the stepped protrusion 111 when the rotating locking structure 9 is locked.

The fixing frame 1 includes a fixing plate 101, the fixing plate 101 is provided with a locking slot 102, the locking slot 102 is engaged with the buckle structure 4, and the outer side of the fixing plate 101 is close to the hole of the object to be connected 2, the inner side of the fixed plate 101 is symmetrically provided with four arc-shaped plates 103, and the intersecting places of the arc-shaped plates 103 are provided with the locking slots 102, and the fixing frame 1 can be connected with the buckle through the locking slots 102. The structures 4 are connected. When connecting, the fixing plate 101 is prevented from being inside the sheet metal to be connected, and the sheet metal to be connected and the connecting hole 3 of the sheet metal to be connected are pasted together and precisely connected together by the limit screw 8. That's it.

The rotating clamping structure 9 includes but not limited to a straight shape, a triangle, a cross, and a square. The rotating clamping structure 9 can provide tension to the two sheet metals. When the limit screw 8 is inserted into the inside of the buckle limit cap 5 At this time, the longest section of the rotating locking structure 9 is located at the diagonal line of the buckle limit cap 5. When the nut is connected to the limit screw 8, it will drive the rotating locking structure 9 to rotate at a certain angle, thereby turning the rotating locking structure 9 Rotate out the sheet metal hole 2 to be connected to form a clamping force with the nut.

The rotating locking structure 9 is in-line, and both ends of the rotating locking structure 9 are flush with the corners of the buckle limit cap 5. Here, the rotating locking structure 9 with an in-line structure is taken as an example. After the whole device is assembled, the inline rotating clamping structure 9 is positioned at the top of the step, and the rotating nut starts to be locked, and the inline rotating clamping structure 9 is unscrewed from the opposite side of the buckle limit cap 5. At the corner line, and then clamp the edge of the direction hole of the sheet metal to be connected, for sheet metal of different thickness, the rotating clamping structure 9 can rotate different distances on the step 9, so as to achieve the purpose of clamping sheet metal of different thickness .

The inner side of the buckle limit cap 5 is provided with a triangular locking protrusion 51, and when the triangular locking protrusion 51 enters with the rotating locking structure 9, the rotation of the rotating screw is restricted, which is convenient for the subsequent clamping operation, and the locking protrusion 51 Lifting 51 ensures that the screw is reliably on the diagonal line of the buckle limit cap 5, and will not break away from the diagonal line of the buckle limit cap 5. When tightening, it can pass through the hole 2 smoothly. When the nut is loosened, turn The locking structure 9 will return to the initial position along the steps, so that the limiting screw 8 can be taken out of the hole 2 .

The rotation direction of the nut is the rotation direction of the rotation locking structure 9, which is beneficial to the stability after locking.

The part of the screw rod of the limit screw 8 located at the inner side of the fixed frame 1 and the buckle structure 4 is a straight face 81, the inner surface of the guide block 11 and its cooperation is a smooth surface 82, and the straight face 81 of the screw rod is arranged to match the smooth surface 82. Cooperate with each other to reduce the shaking of the limit screw 8, which is convenient for operation.

The stopper screw 8 is provided with a rotation slot 83 at the end of the rotation clamping structure 9 according to the principle. When the device is in normal use, as the nut is tightened, the rotation clamping structure 9 will automatically screw into the bottom of the stepped protrusion 111. When the stop screw 8 of the device cannot normally enter the bottom of the step protrusion 111, the corresponding screwdriver can be used to drive the rotation groove 83 to rotate, so that the rotation locking structure 9 of the stop screw 8 can be screwed into the bottom of the step protrusion 111, and formed in the rotating nut. As for the position limit, it should be noted that the shape of the rotating groove 83 can be a commonly used locking shape such as a straight shape and a quincunx shape.

The bottom of the stepped protrusion 111 is set as a plane 84. When the rotating locking structure 9 is screwed into the bottom of the stepped protrusion 111, the structure set by the plane 84 can improve the supporting force for the limit screw 8 and protect the fastening of the rotating locking structure 9. Effect.

The above-described embodiment only expresses a certain implementation mode of the present invention, and its description is relatively specific and detailed, but it should not be interpreted as limiting the patent scope of the present invention; it should be pointed out that for those of ordinary skill in the art That is to say, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention; therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A tolerance compensating fastening device of simple construction, characterized in that: comprises that

Fixing frame (1): one end of the fixing frame (1) is attached to the hole (2) of the object to be connected and is provided with a corresponding connecting hole (3), and the other end of the fixing frame is detachably connected with the buckle structure (4);

buckle limit cap (5): one end of the connecting rod is connected with the connecting hole (3) in a sliding mode and penetrates through the connecting hole (3) and is connected with the hole (2) of the object to be connected in a sliding mode, a limiting column (6) is arranged at the opposite corner of the other end of the connecting rod, a limiting bulge (7) is arranged on the outer side of the end portion of the limiting column (6), and the limiting bulge (7) is larger than the connecting hole (3);

limit screw (8): the head of the limiting screw (8) is provided with a rotary clamping structure (9), and the rotary clamping structure (9) can penetrate through the limiting column (6) and deflect on the buckle limiting cap (5);

snap structure (4): the buckle structure (4) is detachably connected with the fixed frame (1), a through hole (10) is formed in the middle of the buckle structure (4), and a guide clamping block (11) is arranged on one side, facing the fixed frame (1), of the through hole (10);

nut: and the other side of the through hole (10) of the buckle structure (4) is connected with the limit screw (8).

2. A structurally simple tolerance compensating fastening device as claimed in claim 1, wherein: the end part of the guide clamping block (11) is a stepped protrusion (111), and the rotary clamping structure (9) can rotate and move on the stepped protrusion.

3. A structurally simple tolerance compensating fastening device as claimed in claim 1, wherein: mount (1) is including fixed plate (101), it has screens groove (102) to open on fixed plate (101), screens groove (102) with buckle structure (4) joint, the article hole (2) department of treating the connection is hugged closely in fixed plate (101) outside, fixed plate (101) inboard symmetry is equipped with four arc (103), arc (103) two liang of crossing department opens there screens groove (102).

4. A structurally simple tolerance compensating fastening device as claimed in claim 1, wherein: the rotary clamping structure (9) comprises but is not limited to a straight line shape, a triangle shape, a cross shape and a square shape.

5. A structurally simple tolerance compensating fastening device as claimed in claim 3, wherein: the rotary clamping structure (9) is in a straight line shape, and two ends of the rotary clamping structure (9) are flush with corners of the buckle limiting caps (5).

6. A structurally simple tolerance compensating fastening device according to claim 4, wherein: the inner side of the buckle limiting cap (5) is provided with a triangular clamping bulge (51).

7. A structurally simple tolerance compensating fastening device as claimed in claim 1, wherein: the nut rotation direction is the rotation direction of the rotation blocking structure (9).

8. A structurally simple tolerance compensating fastening device as claimed in claim 1, wherein: the part of the screw rod of the limiting screw (8) positioned at the inner sides of the fixed frame (1) and the buckle structure (4) is a straight surface (81), and the inner side surface of the guide clamping block (11) matched with the guide clamping block is a smooth surface (82).

9. A structurally simple tolerance compensating fastening device as claimed in claim 1, wherein: and the limit screw (8) is used for limiting the rotation of the rotary clamping structure (9), and a rotary groove (83) is formed at the end of the rotary clamping structure.

10. A structurally simple tolerance compensating fastening device as claimed in claim 1, wherein: the bottom of the stepped protrusion (111) is arranged in a plane (84).

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