TWI751853B - Quick positioning clamp - Google Patents

Abstract

A clamp includes a body and a clamping assembly. The body is provided with a pivoting portion and a fixed jaw. The clamping assembly includes a limiting member, a screw rod, and a movable jaw. The limiting member is arranged on the pivoting portion. The limiting member is penetrated with a socket hole. An inner periphery of the socket hole is provided with a threaded portion. The screw rod can be pivotally connected to the pivoting portion so as to rotate relative to the body with a virtual shaft as a center. The movable jaw is connected to an end of the screw rod and corresponds to the fixed jaw. When the screw rod rotates, the screw rod can drive the limiting member to move between an engaged position and a released position. When the limiting member is in the engaged position, the threaded portion engages with an external thread of the screw rod. When the limiting member is in the released position, The threaded portion is separated from the screw rod. Thus, the clamp can achieve the effect of rapid positioning through the above structure.

Description

Quick Positioning Clamps

The present invention mainly discloses a clamp, especially a quick positioning clamp.

Please refer to Chinese Patent No. M490377 "Structural Improvement of C-type Clamp", which is a C-type clamp, which includes a clamp body, at least one swing stopper, and a screw seat at the other end; and a pivot A fastener on the screw base, the fastener is provided with a flat clamping piece positioned relative to the swing stopper, the flat clamping piece has a flat clamping plane, and clamping is generated by adjusting the spacing between the swing stopper and the flat clamping piece According to this, when two objects with different thicknesses are clamped, the rocking stopper can adjust the inclination of an appropriate angle, so that the two objects can be truly supported.

However, the width between the flat clamping piece and the rocking stopper of the above-mentioned C-type clamp is adjusted through the screw fitting structure of the screw portion and the screw base. The user must turn the rotary handle repeatedly for a long time to adjust the jaw of the C-type clamp to an appropriate width.

In view of the lack of the above-mentioned conventional structure, the inventors have designed a quick positioning clamp, which can overcome all the shortcomings of the above-mentioned conventional structure.

The main purpose of the quick positioning clamp of the present invention is to provide a clamp including a main body and a clamping group, the main body is provided with a pivot part and a fixing jaw, and the clamping group includes a limiting member, A screw and a movable jaw, the limiting member is arranged on the pivot portion, the limiting member is provided with a socket hole, the inner periphery of the socket hole is provided with a threaded portion, the screw can rotate with a virtual axis The movable jaw is connected to one end of the screw and corresponds to the fixed jaw. When the screw rotates, it can drive the limiting member to move between the engaging position and the releasing position. When the screw rotates in the forward direction, the limiting member moves to the engaging position. When the limiting member is in the engaging position, the threaded portion engages the external thread of the screw. When the screw rotates in the reverse direction, the limiting member moves to the engagement position. In the release position, when the stopper is in the release position, the threaded portion is disengaged from the screw rod, the screw rod can move axially along the virtual shaft, and the clamp can achieve the effect of rapid positioning through the above structure.

An accommodating space is disposed in the pivoting portion, and a first abutting portion and a second abutting portion are disposed on the inner periphery of the accommodating space. The limiting member is disposed in the accommodating space, and the limiting member A third abutting portion and a fourth abutting portion are disposed along the radial outer periphery of the virtual rotating shaft, and when the limiting member is in the engaging position, the third abutting portion abuts the first abutting portion, The fourth abutting portion is disengaged from the second abutting portion. When the limiting member is in the release position, the fourth abutting portion is abutting against the second abutting portion, and the third abutting portion is disengaging from the first abutting portion. rely on the department.

The inner periphery of the accommodating space is provided with a stop portion, the stop portion is arranged between the first abutting portion and the second abutting portion, and the stop portion extends radially from the virtual shaft to the virtual shaft The distance formed a first width, when the limiting member is in the engaging position, the distance from the third abutting portion to the virtual rotating shaft along the radial direction of the virtual rotating shaft forms a second width, when the limiting member is in the releasing position , the distance from the fourth abutting portion to the virtual rotating shaft along the radial direction of the virtual rotating shaft forms a third width, and the first width is smaller than the second width and the third width.

The limiting member is provided with a through hole along the radial direction of the virtual rotating shaft. The through hole is connected to the socket hole and is connected to the outer peripheral edge of the limiting member along the radial direction of the virtual rotating shaft. The clamping set includes a top block and an elastic The top block is arranged in the through hole, the elastic piece is connected to the outer periphery of the limiting piece along the radial direction of the virtual shaft, the elastic piece pushes the top block and keeps the top block in contact with the outer periphery of the screw .

The inner peripheral edge of the through hole is provided with a wide section and a narrow section, the wide section is connected to the outer peripheral edge of the limiting member along the radial direction of the virtual rotation axis, the narrow section is connected to the socket hole, and the outer peripheral edge of the top block A wide portion and a narrow portion are provided, the wide portion is arranged in the wide section, the narrow section is arranged in the narrow section, and the radial width of the narrow section is smaller than the radial width of the wide section.

The top block and the elastic piece are disposed on the side of the screw rod opposite to the stopper, the elastic piece is in the shape of a sheet, one end of the elastic piece abuts against the top block, and one end of the elastic piece is opposite to the top block A locking piece is connected, and the locking piece is fixedly connected to the outer peripheral edge of the limiting piece along the radial direction of the virtual rotating shaft in a screw lock manner.

One end of the pivot portion adjacent to the fixing jaw is provided with a first pivot hole, one end of the pivot portion opposite to the fixing jaw is provided with a second pivot hole, and the accommodating space is provided between the first pivot hole and the The second pivot holes communicate with the first pivot hole and the second pivot hole, the width of the first pivot hole along the radial direction of the virtual shaft and the width of the second pivot hole along the radial direction of the virtual shaft are both The screw rod passes through the first pivot hole and the second pivot hole smaller than the width of the accommodating space along the radial direction of the virtual rotation axis.

The first abutting portion, the second abutting portion and the blocking portion are on the same concave arc surface, and the third abutting portion and the fourth abutting portion are on the same convex arc surface.

The main body is provided with a clip arm, the clip arm is C-shaped, the pivot part is arranged on one end of the clip arm, and the fixing jaw is arranged on the end of the clip arm opposite to the pivot part.

Other objects, advantages and novelties of the present invention will become more apparent from the following detailed description and the associated drawings.

Regarding the techniques, means and effects of the present invention, a preferred embodiment is given and described in detail in conjunction with the drawings.

Referring to FIG. 1 and FIG. 2 , it is a three-dimensional appearance view and a three-dimensional exploded view of the quick positioning clamp of the present invention. The clamp 10 of the present invention includes a body 20 and a clamping group 30; wherein:

The body 20 is provided with a pivot portion 21 and a fixed jaw 22 .

Please continue to refer to FIG. 3 to FIG. 9 , which are the cross-sectional structure diagram of the quick-position clamp stopper in the engaging position, the cross-sectional structure diagram of the top block and the elastic piece, the cross-sectional structure diagram of the stopper in the release position, and the Use state diagrams. The clamping group 30 includes a limiting member 31 , a screw 32 and a movable jaw 33 , the limiting member 31 is disposed on the pivot portion 21 , and a socket hole 311 is formed through the limiting member 31 . The inner periphery of the socket hole 311 is provided with a threaded portion 312 , and the screw 32 is pivotally mounted on the pivot portion 21 to rotate relative to the body 20 with a virtual rotation axis L as the center, and the movable jaw 33 is connected to the screw 32 . One end corresponds to the fixed jaw 22. When the screw 32 rotates, it can drive the limiting member 31 to move between the engaging position and the releasing position. When the screw 32 rotates in the forward direction, the limiting member 31 moves to the engaging position. When the limiting member 31 is at the engaging position, the threaded portion 312 engages the external thread of the screw 32, and when the screw 32 rotates in the reverse direction, the limiting member 31 moves to the releasing position, where the limiting member 31 is at the releasing position When the threaded portion 312 is disengaged from the screw 32, the screw 32 can move axially along the virtual rotation axis L.

An accommodating space 211 is disposed in the pivoting portion 21 , a first abutting portion 212 and a second abutting portion 213 are disposed on the inner periphery of the accommodating space 211 , and the limiting member 31 is disposed in the accommodating space In the space 211, the limiting member 31 is provided with a third abutting portion 313 and a fourth abutting portion 314 along the radial outer periphery of the virtual rotation axis L. When the limiting member 31 is in the engaging position, the third The abutting portion 313 abuts against the first abutting portion 212 , the fourth abutting portion 314 is separated from the second abutting portion 213 , and when the limiting member 31 is in the release position, the fourth abutting portion 314 abuts Abutting against the second abutting portion 213 , the third abutting portion 313 is separated from the first abutting portion 212 .

A stopper portion 214 is disposed on the inner periphery of the accommodating space 211 , the stopper portion 214 is disposed between the first abutment portion 212 and the second abutment portion 213 , and the stopper portion 214 is along the virtual rotation axis The distance from the radial direction of L to the virtual rotation axis L forms a first width W1. When the limiting member 31 is in the engaging position, the distance from the third abutting portion 313 to the virtual rotation axis L along the radial direction of the virtual rotation axis L forms a width W1. The second width W2, when the limiting member 31 is in the release position, the fourth abutting portion 314 forms a third width W3 along the radial direction of the virtual rotation axis L to the virtual rotation axis L, and the first width W1 is less than The second width W2 and the third width W3.

The limiting member 31 is provided with a through hole 315 along the radial direction of the virtual rotation axis L. The through hole 315 communicates with the socket hole 311 and is connected to the outer peripheral edge of the limiting member 31 along the radial direction of the virtual rotation axis L. The clamping group 30 It includes a top block 34 and an elastic member 35, the top block 34 is arranged in the through hole 315, the elastic member 35 is connected to the outer peripheral edge of the limiting member 31 along the radial direction of the virtual axis L, and the elastic member 35 The top block 34 is pushed and kept in contact with the outer periphery of the screw 32 .

A wide section 316 and a narrow section 317 are disposed on the inner circumference of the through hole 315 , the wide section 316 is connected to the outer circumference of the limiting member 31 along the radial direction of the virtual axis L, and the narrow section 317 is connected to the socket hole 311, the outer periphery of the top block 34 is provided with a wide part 341 and a narrow part 342, the wide part 341 is set in the wide section 316, the narrow part 342 is set in the narrow section 317, the narrow section 317 The radial width is smaller than the radial width of the wide portion 341 .

The top block 34 and the elastic member 35 are disposed on the side of the screw 32 opposite to the stop portion 214 , the elastic member 35 is in the shape of a sheet, one end of the elastic member 35 abuts against the top block 34 , and the elastic member One end of the top block 35 opposite to the top block 34 is connected with a locking piece 351 , and the locking piece 351 is fixedly connected to the outer peripheral edge of the limiting piece 31 along the radial direction of the virtual rotation axis L in a screw locking manner.

One end of the pivot portion 21 adjacent to the fixing jaw 22 is provided with a first pivot hole 215 , and one end of the pivot portion 21 opposite to the fixing jaw 22 is provided with a second pivot hole 216 , and the accommodating space 211 is provided in the Between the first pivot hole 215 and the second pivot hole 216 and communicate with the first pivot hole 215 and the second pivot hole 216 , the width of the first pivot hole 215 along the radial direction of the virtual axis L is the same as the width of the first pivot hole 215 The width of the second pivot hole 216 along the radial direction of the virtual axis L is smaller than the width of the accommodating space 211 along the radial direction of the virtual axis L, and the screw 32 passes through the first pivot hole 215 and the second pivot hole 216 .

The first abutting portion 212 , the second abutting portion 213 and the blocking portion 214 are on the same concave arc surface, and the third abutting portion 313 and the fourth abutting portion 314 are on the same convex arc surface.

The main body 20 is provided with a clamping arm 23 , the clamping arm 23 is C-shaped, the pivot portion 21 is arranged at one end of the clamping arm 23 , and the fixing jaw 22 is arranged at the opposite side of the clamping arm 23 to the pivoting portion 21 . At one end, the movable jaw 33 can be moved closer to or away from the fixed jaw 22 when the screw 32 moves axially along the virtual axis L.

The clamp 10 can achieve the effect of rapid positioning through the above structure. The user rotates the screw 32 in the opposite direction to make the threaded portion 312 disengage from the screw 32. In this state, the screw 32 can move forward or backward quickly to achieve the effect of rapid positioning. 312 is engaged with the screw rod 32, and the clamp 10 can clamp the object with the fixed jaw 22 and the movable jaw 33 by tightening the thread structure. At the same time, through the cooperation of the top block 34 and the elastic member 35, the clearance of the screw rod 32 in the socket hole 311 can be eliminated and the elastic space can be reserved to ensure that the screw rod 32 can move forward and backward quickly, operate smoothly, and can The limiting member 31 will not be stuck in the engaging position or the releasing position, and there will be no situation in which the user rotates the screw 32 but cannot drive the limiting member 31 to switch positions.

From the above, it can be concluded that the present invention has the following advantages:

1. It is a quick positioning clamp of the present invention, wherein the clamp includes a main body and a clamping group, the main body is provided with a pivot part and a fixed jaw, and the clamping group includes a limit piece, a screw rod and a movable jaw, the limiter is arranged on the pivot part, the limiter is provided with a socket hole, the inner periphery of the socket hole is provided with a threaded part, and the screw can be opposite to a virtual axis of rotation The main body is pivoted on the pivot portion, the movable jaw is connected to one end of the screw rod and corresponds to the fixed jaw, and the screw rod can drive the limiting member to move between the engaging position and the releasing position when the screw rod rotates. When the stopper is rotated in the opposite direction, the stopper moves to the engaging position. When the stopper is in the meshing position, the threaded portion engages with the external thread of the screw. When the screw is reversely rotated, the stopper moves to the release position. , when the limiting member is in the release position, the threaded portion is separated from the screw rod, the screw rod can move axially along the virtual rotation axis, and the clamp can achieve the effect of rapid positioning through the above structure.

However, the above are only preferred embodiments of the present invention, and should not be used to limit the scope of implementation of the present invention. Therefore, any changes in numerical values or replacement of equivalent components, or equivalents made according to the scope of the patent application of the present invention Changes and modifications should still fall within the scope of the patent of the present invention.

10: Clamps 20: Ontology 21: Pivot part 211: accommodating space 212: The first abutment 213: Second Abutment 214: Stopper 215: The first pivot hole 216: Second pivot hole 22: Fixed jaw 23: Clamp Arm 30: Clamping group 31: Limiter 311: socket hole 312: Threaded part 313: Third Abutment 314: Fourth Abutment 315: Perforation 316: wide segment 317: Narrow segment 32: Screw 33: Active Jaw 34: Top Block 341: Wide part 342: Narrow part 35: Elastic 351: Locks L: virtual reel W1: first width W2: Second width W3: third width

Fig. 1 is a three-dimensional appearance view of the quick positioning clamp of the present invention. Fig. 2 is an exploded perspective view of the quick positioning clamp of the present invention. FIG. 3 is a cross-sectional structural view of the quick-positioning clamp stopper of the present invention at the engaging position. FIG. 4 is a partial enlarged cross-sectional structural view of the quick-positioning clamp stopper of the present invention at the engaging position. FIG. 5 is a cross-sectional structural view of the quick-positioning clamp stopper of the present invention from another angle of view at the engaging position. FIG. 6 is a cross-sectional structural view of the top block and the elastic member of the quick positioning clamp of the present invention. FIG. 7 is a cross-sectional structural view of the quick-positioning clamp stopper of the present invention in the release position. Fig. 8 is a state diagram of the quick positioning clamp stopper of the present invention in the release position. FIG. 9 is a partially enlarged view of the use state of the quick-positioning clamp stopper of the present invention in the release position.

10: Clamps

20: Ontology

21: Pivot part

22: Fixed jaw

23: Clamp Arm

30: Clamping group

32: Screw

33: Active Jaw

Claims (9)

A quick positioning clamp, comprising: a body, which is provided with a pivot part and a fixed jaw; A clamping group, the clamping group includes a limit piece, a screw rod and a movable jaw, the limit piece is arranged on the pivoting part, the limit piece passes through a socket hole, the socket hole The inner periphery of the screw is provided with a threaded portion, and the screw can be pivoted relative to the main body around a virtual rotating shaft. The movable jaw is connected to one end of the screw and corresponds to the fixed jaw. When the screw rotates The limiter can be driven to move between the engagement position and the release position. When the screw rotates in the forward direction, the limiter moves to the engagement position. When the limiter is in the engagement position, the threaded portion engages the screw of the screw. External thread, when the screw rotates in the opposite direction, the limiting member moves to the release position, when the limiting member is in the release position, the thread part is disengaged from the screw, and the screw can move axially along the virtual rotation axis. The quick-positioning clamp according to claim 1, wherein an accommodating space is disposed in the pivoting portion, and a first abutting portion and a second abutting portion are disposed on the inner periphery of the accommodating space. A third abutting portion and a fourth abutting portion are arranged along the radial outer periphery of the virtual rotating shaft of the limiting member. When the limiting member is in the engaging position, the third The abutting portion abuts against the first abutting portion, the fourth abutting portion is separated from the second abutting portion, and when the limiting member is in the release position, the fourth abutting portion abuts against the second abutting portion abutting part, and the third abutting part is separated from the first abutting part. The quick positioning clamp according to claim 2, wherein an inner periphery of the accommodating space is provided with a stop portion, the stop portion is arranged between the first abutting portion and the second abutting portion, the The distance from the stop portion to the virtual shaft along the radial direction of the virtual shaft forms a first width, and when the stopper is in the engaging position, the distance from the third abutting portion to the virtual shaft along the radial direction of the virtual shaft forms a first width. The second width, when the stopper is in the release position, the fourth abutting portion forms a third width along the radial direction of the virtual rotating shaft to the virtual rotating shaft, and the first width is smaller than the second width and the first width. Three widths. The quick positioning clamp according to claim 3, wherein the limiting member is provided with a through hole along the radial direction of the virtual rotating shaft, the through hole is connected with the socket hole and is connected to the outer peripheral edge of the limiting member along the radial direction of the virtual rotating shaft , the clamping group includes a top block and an elastic piece, the top block is arranged in the through hole, the elastic piece is connected to the outer periphery of the limiting piece along the radial direction of the virtual shaft, and the elastic piece pushes the top piece block and hold the top block in contact with the outer periphery of the screw. The quick positioning clamp as claimed in claim 4, wherein the inner peripheral edge of the through hole is provided with a wide section and a narrow section, the wide section is connected to the outer peripheral edge of the limiting member along the radial direction of the virtual rotation axis, the narrow section Connected to the socket hole, the outer periphery of the top block is provided with a wide part and a narrow part, the wide part is set in the wide section, the narrow part is set in the narrow section, the radial width of the narrow section smaller than the radial width of the wide portion. The quick positioning clamp according to claim 5, wherein the top block and the elastic member are disposed on a side of the screw rod opposite to the stop portion, the elastic member is in a sheet shape, and one end of the elastic member abuts against the A top block, an end of the elastic piece opposite to the top block is connected with a locking piece, the locking piece is fixedly connected to the outer peripheral edge of the limiting piece along the radial direction of the virtual rotating shaft in a screw lock manner. The quick positioning clamp as claimed in claim 6, wherein one end of the pivot portion adjacent to the fixing jaw is provided with a first pivot hole, and an end of the pivot portion opposite to the fixing jaw is provided with a second pivot hole, The accommodating space is disposed between the first pivot hole and the second pivot hole and communicates with the first pivot hole and the second pivot hole, and the width of the first pivot hole along the radial direction of the virtual axis is the same as the width of the The width of the second pivot hole along the radial direction of the virtual shaft is smaller than the width of the accommodating space along the radial direction of the virtual shaft, and the screw rod passes through the first pivot hole and the second pivot hole. The quick positioning clamp according to claim 7, wherein the first abutting part, the second abutting part and the stop part are on the same concave arc surface, the third abutting part and the fourth abutting part on the same convex arc surface. The quick positioning clamp according to claim 8, wherein the main body is provided with a clamp arm, the clamp arm is C-shaped, the pivot portion is disposed at one end of the clamp arm, and the fixing jaw is disposed opposite to the clamp arm. one end of the pivot portion.

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