TWM573271U - Puller structure - Google Patents

Abstract

A puller structure includes a screw, a connecting member, a fixing seat and a connecting seat. The top end of the connecting member is provided with a special-shaped nut, and the screw extends downward through the special-shaped nut and the fixing seat, and passes through the connecting seat The connecting member is fixed downwardly to the connecting seat, and the fixing seat is provided with a plurality of first fixing arms extending obliquely downward, and the connecting seat is outwardly provided with a plurality of second fixing arms, and the positions of the first fixing arms and the second fixing arms correspond to The first fixed arm and the second fixed arm are respectively provided with a groove extending along the extending direction thereof, and a clamping arm is respectively slidably disposed on the groove of the two fixed arms by a convex block. In the slot.

Description

Puller construction

This creation is related to hand tools, especially the structure of a puller.

The conventional puller has two structural types as shown in Fig. 5 and Fig. 6, and the clamp arm can be used to firmly fasten the workpiece (such as a bearing), and then the screw is used to push or pull the shaft member in the workpiece by a screw action. Out. According to this, the premise that the puller can operate correctly and achieve the desired effect is the degree of stability of the workpiece when the clamp arm is fastened. Therefore, if the size of the workpiece is larger, the clamping distance that the clamp arm can form needs to be larger to satisfy the fastening. The requirements of the workpiece.

The clip arm 71 of the conventional puller shown in Fig. 5 is pivotally connected to a fixed length connecting arm 72, and a driving arm 73 is connected to drive the clip arm 71 to open to form a clamping distance. The maximum distance that the clamp arm 71 can open is called the span. As shown, when the puller is used on a larger workpiece 74, wherein the size of the workpiece 74 is between the grip and the span of the puller, the clamp arm 71 is pivotally connected. The fixed position of the arm 72 cannot be further widened so that the workpiece 74 cannot be firmly held.

The clip arm 81 of the conventional puller shown in Fig. 6 is slidably coupled to a fixed length connecting arm 82 with a tip end, and the clamping distance and span are equal, so this type The puller enables the clamp arm 81 to be opened to securely hold the workpiece 83. However, the connecting arm 82 of such a puller is generally long and thus occupies an excessive volume, which is very inconvenient to store.

In view of this, how to improve the above problems is the primary issue that the creative office wants to solve.

The primary object of the present work is to provide a puller construction that can be opened with sufficient span to create a larger interpupential distance that can be secured to a larger workpiece, thereby increasing the range of use.

For the purpose of the foregoing, the present invention provides a puller structure including a screw, a connecting member, a fixing base and a connecting seat. The fixing seat is provided with a screw hole, and the connecting seat is provided with a through hole. The top end is provided with a special-shaped nut, and the screw is screwed and extends downwardly through the screw hole of the deformed nut and the fixing seat, and passes through the through hole of the connecting seat, and the connecting member protrudes downwards at a plurality of intervals An extension arm, the extension arm is fixed to the linkage seat, and the fixed seat has a plurality of first fixing arms extending outwardly, and the connecting seat extends outwardly with a plurality of second fixing arms, wherein the first fixing arms respectively extend from the extending arm The first fixed arm and the second fixed arm are connected to each other, and the first fixed arm and the second fixed arm are connected to each other; the first fixed arm is inclined from the fixed seat Extending in a downward direction, each of the second fixed arms extends in an arc shape from the connecting seat, the length of the first fixing arm is smaller than the length of the second fixing arm, and the first fixing arm is provided with an extending direction thereof a first groove extending, the second fixed arm A second trench extending along the extending direction of the gripping arms respectively, a first bump and a second bump slidably disposed on the first trench and the second trench.

In an embodiment, the first groove is recessed from the bottom surface of the first fixing arm, and a first long sliding slot is formed on both sides of the first fixing arm, wherein the first long groove is along the first length a plurality of wavy positioning recesses are disposed at a bottom edge of the sliding slot; the first protruding block is disposed on the two sides of the clamping arm facing the first long sliding slot, and slidably extends through the first long sliding In the slot. The second groove is formed by extending the second fixing arm up and down, and a second long sliding slot is formed on two sides of the second fixing arm; the second protruding block is disposed on the clamping arm facing the second long length Both sides of the chute are slidably penetrated in the second long chute.

The above objects and advantages of the present invention are not to be understood in detail from the detailed description and the accompanying drawings.

Please refer to Figures 1 and 2, which show the puller structure provided for the creation, which comprises a screw 1, a connecting member 2, a fixing base 3 and a connecting seat 4. A connecting nut 21 is disposed at a top end of the connecting member 2, the fixing base 3 is located below the connecting member 2, and the connecting seat 4 is located below the fixing base 3. The connecting member 2 extends downwardly from three extending arms 22, each of the extension arms 22 is disposed at an interval, and is fixed to the linkage base 4. The fixing base 3 is provided with a threaded hole 31. The connecting base 4 is provided with a through hole 41. The screw 1 is screwed to the shaped nut 21 and screwed down to the fixing seat 3 through the screw hole 31, and then continues to extend downward. Through the perforation 41 of the linkage 4 .

The first fixing arm 32 extends outwardly from the extending arm 22, wherein each of the first fixing arms 32 is further defined by the first fixing arm 32. The holder 3 extends obliquely downward. Further, the connecting bracket 4 has three second fixing arms 42 extending outwardly, wherein the second fixing arms 42 are further defined to extend from the connecting bracket 4 in an arc shape. The position of the first fixing arm 32 corresponds to the position of the second fixing arm 42, and the length of the first fixing arm 32 is smaller than the length of the second fixing arm 42.

The first fixing arm 32 is provided with a first groove 33 extending along the extending direction thereof. In the embodiment, the first groove 33 is recessed upward from the bottom surface of the first fixing arm 32. A first long sliding slot 34 is defined on two sides of the first fixed arm 32. A plurality of undulating positioning recesses 341 are disposed along a bottom edge of the first long sliding slot 34. On the other hand, the second fixing arm 42 is provided with a second groove 43 extending along the extending direction thereof. In the embodiment, the second groove 43 is formed by the second fixing arm 42 extending up and down. Opening a second long sliding slot 44 on two sides of the second fixing arm 42

A clamping arm 5 is connected to the first fixing arm 32 and the second fixing arm 42 corresponding to the position, and a hook portion 51 for hooking the workpiece is disposed at a bottom end thereof, and the clamping arm 5 extends through the first fixing arm a first groove 32 and a second groove 43 of the second fixing arm 42 are disposed, and the first arm 52 is disposed on the two sides of the clamping arm 5 facing the first long sliding slot 34. A second protrusion 53 is disposed on the two sides of the second long sliding slot 44. The first arm 52 and the second protrusion 53 are respectively slidably disposed on the first long sliding slot 34 and the second long sliding block 34. In the second long sliding groove 44, the position of the first long sliding arm 32 and the second fixed arm 42 can be changed.

With the above configuration, as shown in FIG. 3, the present invention firstly drives the connecting member 2 by operating the deformed nut 21 corresponding to the size of the workpiece 6A to be operated, and drives the connecting base 4 to move. The second fixing arm 42 is further moved to a proper position, and then the first arm 52 and the second protrusion 53 are respectively disposed on the first long sliding slot 34 and the second long sliding slot. 44 is freely slid, thereby adjusting each of the clamp arms 5 to open to the workpiece 6A to buckle the workpiece 6A, and the operation of rotating the screw 1 to remove the shaft member of the workpiece 6A is performed, and the workpiece is removed. In the case of the shaft member, each of the clamping arms 5 can be engaged with one of the positioning recesses 341 of the first long sliding slot 34 by the first projection 52 to obtain a stable position.

Through the above description, it can be understood that the present invention can change the span of each clamp arm 5 by adjusting the connection position of the clamp arm 5 on the first fixed arm 32 and the second fixed arm 42, that is, changing the clamping distance thereof, and thus is suitable for Workpieces of different sizes. When the size of the workpiece 6B is larger than that shown in FIG. 3, as shown in FIG. 4, the first bump 52 of the top end of each clamp arm 5 and the first fixed arm 32 can be created by the present invention. The position of the connection slides inward, and the position where the second bump 53 at the intermediate position of each clamp arm 5 is connected to the second fixed arm 42 slides outward, so that the span and the clamping distance of each clamp arm 5 are further increased. Expanded to apply to this workpiece 6B.

Another advantage of the present invention is that although the present invention can be applied to a larger workpiece, since the length of the first fixed arm 32 is smaller than the length of the second fixed arm 42, the overall occupied volume is small, which is advantageous. Storage.

However, the above description of the embodiments is merely illustrative of the present invention and is not intended to limit the present invention. Therefore, the replacement of equivalent elements should still be within the scope of the present invention.

In summary, it can be made clear to the skilled person that the creation can achieve the aforementioned objectives, and it has already met the requirements of the Patent Law and submitted an application according to law.

1‧‧‧ screw

2‧‧‧Connecting parts

21‧‧‧ Shaped Nuts

22‧‧‧Extension arm

3‧‧‧ Fixed seat

31‧‧‧ screw holes

32‧‧‧First fixed arm

33‧‧‧First trench

34‧‧‧First long chute

341‧‧‧ positioning pocket

4‧‧‧ linkage base

41‧‧‧Perforation

42‧‧‧second fixed arm

43‧‧‧Second trench

44‧‧‧Second long chute

5‧‧‧ clip arm

51‧‧‧Hook

52‧‧‧First bump

53‧‧‧second bump

6A, 6B‧‧‧ workpiece

71‧‧‧ clip arm

72‧‧‧Connecting arm

73‧‧‧ drive arm

74‧‧‧Workpiece

81‧‧‧ clip arm

82‧‧‧Connecting arm

83‧‧‧Workpiece

Fig. 1 is a perspective view of the creation; Fig. 2 is a perspective exploded view of the creation; Figs. 3 and 4 are schematic views showing the state of use of the creation; Fig. 5 is a schematic plan view of a conventional structure; A schematic plan view of another conventional structure.

Claims (3)

A puller structure includes a screw, a connecting member, a fixing base and a connecting seat, the fixing seat is provided with a screw hole, the connecting seat is provided with a through hole, and the top end of the connecting member is provided with a special-shaped nut, The screw is screwed and extends through the threaded hole of the shaped nut and the fixing seat, and passes through the through hole of the connecting seat, and the connecting member protrudes downwardly to a plurality of spaced apart extending arms, and the extending arm is fixed a plurality of first fixed arms extending outwardly from the fixed seat, the plurality of fixed arms extending outwardly from the extending arms, and the first fixing The arm and the second fixed arm are vertically connected to each other, and the corresponding first fixed arm and the second fixed arm are connected to a clamping arm; wherein: the first fixed arm extends from the fixing seat toward the obliquely downward direction Each of the second fixed arms extends in an arc shape from the connecting base. The length of the first fixed arm is smaller than the length of the second fixed arm, and the first fixed arm is provided with a first groove extending along the extending direction thereof. a slot, the second fixed arm is provided with a delay along the second a second trench extending in the extending direction, the clip arm being slidably disposed in the first trench and the second trench by a first bump and a second bump. The puller structure of claim 1, wherein the first groove is recessed upward from a bottom surface of the first fixed arm, and a first long slide is opened on both sides of the first fixed arm a slot, wherein a plurality of wavy positioning pockets are disposed along a bottom edge of the first long slot; the first protrusion is disposed on a side of the clamping arm facing the first long slot, and slidably The protrusion extends into the first long chute. The puller structure of claim 2, wherein the second groove is formed by vertically extending the second fixing arm, and a second long sliding slot is formed on both sides of the second fixing arm; The two protrusions are disposed on the two sides of the clamping arm facing the second long sliding slot and slidably extend through the second long sliding slot.