TWI623392B - Fast fixture limit structure - Google Patents

Abstract

A limit structure for a quick clamp, comprising: a first rack arm of the fixture is fixed with a rack, and the second clip arm fixes the limit component, and the limit assembly is provided with a jack by the seat body, and The ejector is provided with a pressing handle at one end, and the shank is adjusted by the pressing handle, and the other end of the ejector is connected with a ratchet block by a circular block, and the ratchet block is formed to provide the fifth a displacement slot of the relative displacement of the latch, and the ratchet portion of the ratchet block engages the tooth surface of the rack, whereby the swinging of the ratchet block forms a directionally pushing the rack and the reverse automatic clamping, and Pressing the pressure handle can automatically open the function of the clamp, and the utility model has the practical effect of convenient operation and precise limit.

Description

Fast fixture limit structure

The invention relates to a clamp structure, in particular to a limit structure of a quick clamp for convenient operation and precise limit.

According to a conventional spring clip improved structure, as shown in FIG. 8, the spring clip 40 structure includes a link 41 on which a pivotable fulcrum 411 is positioned on the spring clip 40. The inside of the connecting rod 41 defines a through hole 412; a piece 42 is fixed inside the spring clip 40 above the connecting rod 41, and has a hole 421 which can be vertically penetrated thereon; The spring 43 is disposed between the connecting rod 41 and the seat piece 42. The upper end of the shaft 43 is positioned at the handle of the spring clip 40, and the lower end thereof can be respectively inserted into the aperture 421 of the seat piece 42, the compression spring 43 and The through hole 412 of the connecting rod 41 can push the connecting rod 41 through the compression spring 43 when clamping, so that the through hole 412 of the connecting rod 41 is obliquely engaged with the shaft body 44, and the clamping of the spring clip 40 can be achieved. Fixed effect, but the above-mentioned conventional structure is not difficult to find that there are still some shortcomings, the main reasons are as follows: (1) The compression spring 43 is directly sandwiched between the connecting rod 41 and the seat piece 42, That is, the compression spring 43 is directly pressed at the through hole 412 of the connecting rod 41, so that the compression spring 43 can only The elastic force of the body forms the inclination of the through hole 412, and the compression spring 43 is sleeved on the shaft body 44, and the forward thrust and the reverse thrust are simultaneously generated for the connecting rod 41, which further reduces the pressing effect, and is obviously present. The lack of the top thrust is insufficient, so that the connecting rod 41 is easy to slide and cannot be stably clamped; (2) the shaft body 44 is pivotally connected to the handle of the spring clip 40, and extends through the connecting rod 41 in a straight rod shape, so The distance between the pivotal portion of the shaft body 44 and the pivot of the spring clip 40 is short, which will limit the spring clip 40 The maximum opening degree and the sliding stroke of the shaft body 44 are shortened, so that the accuracy of the clamping and fixing is reduced, and the amount of retraction of the spring clip 40 when it is stuck is increased; (3) the connecting rod 41 is protruded from the spring clip 40. When the user operates the spring clip 40 on the outside of the handle, it is easy to accidentally touch the link 41 and release the function of clamping and fixing, and there is a problem that the grip stability is insufficient.

In view of this, the inventors have been engaged in the manufacturing development and design experience of related products for many years, and after detailed design and careful evaluation of the above objectives, the present invention has finally become practical.

The technical problem to be solved by the present invention is to provide a fast fixture limit structure for the above-mentioned shortcomings existing in the prior art.

a clamp is pivotally connected with a first clamping arm and a second clamping arm symmetrical with each other, and the clamping sleeve is provided with an elastic member at the shaft, and the elastic member is used to maintain the opening a clamp arm and the second clamp arm, the clamp is provided with a first latch on the first clamp arm, and the second clamp arm is provided with a second latch and a third latch, and the rack is curved Forming a tooth surface, and a hole is formed at one end of the rack, the rack is fixed to the first latch of the first clamp arm by the through hole, and the tooth surface is horizontally disposed on the first clamp arm and the first Between the two clamping arms, a limiting component includes a body, a pressing handle, a ejector pin and a ratchet block. The base body is fixed to the second clamping pin by the second latching pin and the third latching pin. The arm and the middle portion of the body are formed with a continuous perforation, and the base body has a front receiving groove and a rear receiving groove respectively communicated at two ends of the through hole, and the pressing handle is pivoted to the seat by a fourth pin. And a pushing portion is formed at one end of the pressing handle, the pushing portion is located at the rear receiving groove of the seat body, and the jack is penetrated through the seat body , And the plunger is formed on the rear end has a receiving groove of the head, and the jack is provided with a round block at the front end of the lock receiving groove, and the top The rod sleeve is provided with a spring for abutting against the base body and the head portion. The ratchet block defines a displacement slot and a circular block hole, and the ratchet block is inserted into the displacement slot by a fifth pin. Having a groove, and the block of the ram is coupled to the block hole of the ratchet block, the ratchet block is formed with a ratchet portion, and the ratchet portion is controllably engaged with the rack Tooth surface.

Wherein, the first clamping arm is formed with a concave bottom surface at a position where the first latch is mounted, and the rack is formed with an abutting portion, and the receiving portion is pressed against the concave portion of the first clamping arm Bottom surface.

Wherein, the second clamping arm forms a concave space at a position where the second latch and the third latch are mounted, and the pressing handle extends a handle at the other end provided with the pushing portion, and the handle is movable a recessed space in the second clamp arm.

The displacement slot of the ratchet block is formed with an upshift position and a downward shift position, and an adjustment position is formed between the upshift position and the downshift position, and the ratchet block can utilize the upshift position. The downward movement position and the adjustment position are swung along the fifth bolt, thereby controlling the meshing state of the ratchet portion with the tooth surface of the rack.

The main purpose of the present invention is that the first clamping arm of the clamp is fixed with a rack, and the second clamping arm fixes the limit component, and the limiting component is provided with a jack by the seat body, and the jack is loaded at one end. a pressing handle is provided, and the pushing rod is adjusted by the pressing handle, and the other end of the top rod is connected with a ratchet block by a circular block, and the ratchet block is formed with a displacement capable of providing relative displacement of the fifth bolt a slot, and the ratchet portion of the ratchet block engages the tooth surface of the rack, whereby the swing of the ratchet block is formed to push the rack forward and reversely automatically clamp, and press the handle The function of the automatic opening of the jig is combined with the practical effect of convenient operation and precise limit.

Other objects, advantages and novel features of the invention will be apparent from The related drawings are more apparent.

[this creation]

10‧‧‧Clamp

11‧‧‧ shaft

12‧‧‧First clamp arm

121‧‧‧First pin

122‧‧‧ concave bottom surface

13‧‧‧Second clamp arm

131‧‧‧Second latch

132‧‧‧ Third bolt

133‧‧‧ recessed space

14‧‧‧Flexible parts

20‧‧‧ rack

21‧‧‧ tooth surface

22‧‧‧Perforation

23‧‧‧Resistance Department

30‧‧‧Limited components

31‧‧‧

311‧‧‧through holes

312‧‧‧ front capacity slot

313‧‧‧ After receiving the slot

32‧‧‧pressure handle

321‧‧‧fourth pin

322‧‧‧Parts

323‧‧‧ handle

33‧‧‧Pole

331‧‧‧ head

332‧‧‧ round blocks

333‧‧ ‧ spring

34‧‧‧ ratchet block

341‧‧‧ displacement slot

341a‧‧‧Upward position

341b‧‧‧Down position

341c‧‧‧Adjust the position

342‧‧‧round hole

343‧‧‧ ratchet

35‧‧‧ fifth bolt

[study]

40‧‧ ‧ spring clip

41‧‧‧ Connecting rod

411‧‧ fulcrum

412‧‧‧through hole

42‧‧‧Parts

421‧‧‧ aperture

43‧‧‧Compressed spring

44‧‧‧Axis body

Figure 1 is a perspective view of the present invention.

Figure 2 is a perspective exploded view of the present invention.

Figure 3 is a partial cross-sectional view of the present invention.

Fig. 4 is a schematic view showing the state of use of the present invention (1).

Fig. 5 is a schematic view showing the state of use of the present invention (2).

Fig. 6 is a schematic view showing the state of use of the present invention (3).

Fig. 7 is a schematic view showing the state of use of the present invention (4).

Fig. 8 is a cross-sectional view showing a conventional jig structure.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [Simplified Description of the Drawings] for details:

First, as shown in FIG. 1 , FIG. 2 and FIG. 3 , a quick clamp limit structure includes: a clamp 10 , a rack 20 and a limit assembly 30 , and a clamp 10 A shaft 11 is pivotally connected with a first clamping arm 12 and a second clamping arm 13 which are symmetrical to each other. The clamping member 10 is sleeved with an elastic member 14 at the shaft 11 and is held by the elastic force of the elastic member 14. The first clamping arm 12 and the second clamping arm 13 are opened, and the first clamping arm 12 is disposed with a first latch 121, and the second clamping arm 13 is provided with a second latch 131 and a The third latch 132 is formed with a concave bottom surface 122 at a position where the first latch 121 is mounted, and the second clamp arm 13 is mounted with the second latch 131 and the third latch 132. Position formed with a concave space 133, a rack 20 is formed with a tooth surface 21 in an arc shape, and a hole 22 is defined in one end of the rack 20, and the rack 20 is fixed to the first pin 121 of the first clamp arm 12 by the through hole 22. The tooth surface 21 is disposed between the first clamping arm 12 and the second clamping arm 13 , and the rack 20 is formed with a receiving portion 23 , and the first supporting portion 23 is pressed against the first portion The recessed bottom surface 122 of the clamping arm 12, the limiting component 30 includes a body 31, a pressing handle 32, a jack 33 and a ratchet block 34. The base 31 receives the second latch 131 and the first The third latch 132 is fixed to the second clamping arm 13 , and a permanent through hole 311 is formed in the middle portion of the through hole 311 , and the front body 312 and the first receiving groove 312 are respectively connected to the two ends of the through hole 311 . The rear accommodating groove 313 is pivotally disposed on the base body 31 by a fourth latch 321 , and a push portion 322 is formed at one end of the press handle 32 . The push portion 322 is located at the rear of the base body 31 . The shank 313 further has a handle portion 323 extending from the other end of the pressing portion 322, and the handle portion 323 is movable in the concave space 133 of the second clamping arm 13, and the ejector rod 33 is disposed through The seat 31 The ejector 311 is formed with a head 331 at one end of the accommodating groove 313, and the ejector pin 33 is locked with a circular block 332 at one end of the front accommodating groove 312, and the ejector pin 33 is sleeved The spring 333 is configured to abut the seat body 31 and the head portion 331 . The ratchet block 34 defines a displacement slot 341 and a circular block hole 342 , and the ratchet block 34 passes through the displacement slot 341 via a fifth latch 35 . The shank 33 is attached to the front accommodating groove 312, and the circular block 332 of the ram 33 is coupled to the circular block hole 342 of the ratchet block 34. The ratchet block 34 is formed with a ratchet portion 343. The ratchet portion 343 controllably engages the tooth surface 21 of the rack 20.

The combination of the structures is as shown in FIG. 1 to FIG. 4 . The clamp 10 pivots the first clamp arm 12 and the second clamp arm 13 with the shaft 11 , and the first clamp arm 12 and The concave bottom surface 122 of the second clamp arm 13 and the concave space 133 are opposite to each other, and the rack 20 is disposed between the first clamp arm 12 and the second clamp arm 13 and is supported by the rack 20 23 against the first clamp arm The concave bottom surface 122 is disposed through the first pin 121 to fix the rack 20 to the first clamping arm 12, and the tooth surface 21 of the rack 20 is laterally disposed outwardly on the first clamping arm. Between the 12 and the second clamping arm 13 , the circular block 322 of the limiting component 30 is received in the circular block hole 342 of the ratchet block 34 , and the ratchet block 34 is placed before the seat body 31 . The groove 312 is accommodated, and the displacement groove 341 of the ratchet block 34 is inserted through the fifth pin 35, thereby forming a combination of the seat body 31 and the ratchet block 34, and the spring 333 is sleeved on the plunger 33, The ejector rod 33 is inserted into the through hole 311 by the accommodating groove 313 of the base body 31, and the ram 13 is coupled to the circular block 332 of the front accommodating groove 312. The spring 333 is interposed between the pedestal body 31 and the rear seat 31. Between the heads 331 of the accommodating grooves 313, the pushing portion 322 of the pressing handle 32 is placed in the accommodating groove 313, and is formed by the fourth pin 321 passing through the pressing shank 32 and the base 31. The pivoting member 30 is disposed in the recessed space 133 of the second clamping arm 13 , and the second latch 131 and the third latch 132 are disposed through the base 31 and the second clamping arm 13 . Fixing the limiting component 30 to the first clamping arm 12 and Interposed between the two arms 13, 34 should the ratchet teeth of the ratchet block portion 343 can be engaged with the rack teeth 20 of the surface 21, to complete summary of the composite structure thereof.

The actual use of the present invention continues as shown in FIG. 2 to the fifth figure. The displacement groove 341 of the ratchet block 34 is formed with an upshift position 341a and a down shift position 341b, and the upshift position An adjustment position 341c is formed between the 341a and the downward movement position 341b, and the ratchet block 34 can be swung along the fifth bolt 35 by the upward movement position 341a, the downward movement position 341b, and the adjustment position 341c. Controlling the engagement state of the ratchet portion 343 with the tooth surface 21 of the rack 20, when the user wants to fix the article with the clamp 10, the user applies a force to press the first clamp arm 12 and the second clamp arm 13 to allow The first and second clamping arms (12) (13) are rotated by the shaft 11 to press the article, and the rack 20 is displaced toward the end of the limiting member 30, and is pushed forward by the tooth surface 21 of the rack 20. The ratchet block 34 is formed with a displacement slot 341 that can be evaded by the fifth latch 35, The ratchet block 34 is slightly moved down and oscillated in the same direction, so that the rack 20 can be smoothly moved to change the meshing position with the limit assembly 30, and the fifth latch 35 in this state is moved over the displacement slot 341. Between the 341a and the adjustment position 341c, the function of clamping the article with the easy operation of the jig 10, and when clamping the article, please refer to FIG. 6 again, the external force and the restoring force of the elastic member 14 will be A clamping arm 12 and a second clamping arm 13 form a thrust in an opening direction, which will push the rack 20 away from the limiting component 30, and the tooth surface 21 of the rack 20 and the ratchet block 34. The ratchet portions 343 are in mesh with each other. The pushing direction causes the ratchet block 34 to swing about the circular block 332. One end of the ratchet block 34 is pressed against the seat body 31, and the ratchet portion 343 at the other end is allowed. The tooth surface 21 of the rack 20 is more closely engaged. In this state, the fifth pin 35 is fixed to the displacement position 341a of the displacement groove 341, thereby achieving the purpose that the clamped article cannot be separated easily. As shown in FIG. 7, when the clamp 10 needs to be opened, the user only needs to press the handle 323 of the pressing handle 32. The pressing handle 32 is pivoted with the fourth pin 321 as an axis, so that the pushing portion 322 of the pressing handle 32 pushes the head 331 of the plunger 33, so that the plunger 33 compresses the spring 333 and pushes out the circular block 332 to pass through The circular block 332 drives the ratchet block 34 to swing, and the ratchet portion 343 is disengaged from the tooth surface 21 of the rack 20. In this state, the fifth bolt 35 is displaced downward by the adjustment position 341c of the displacement groove 341. When the position is 341b, the first clamping arm 12 and the second clamping arm 13 can be automatically opened by the elastic force of the elastic member 14. When the pressing handle 32 is released, the spring 333 pushes the plunger 33 and the pressure. The handle 32 is returned to the inoperative position, ie the clamp can be reused.

With the structure of the above specific embodiment, the following benefits can be obtained: the first clamp arm 12 of the clamp 10 is fixed with the rack 20, and the second clamp arm 13 fixes the limit assembly 30, and the limit assembly 30 The pedestal 31 is provided with a ram 33, and the shank 33 is provided with a pressing handle 32 at one end thereof, and the shank 33 is adjusted by the pressing shank 32, and the other end of the ram 33 is connected by a circular block 332. a ratchet block 34 is formed, and the ratchet block 34 is formed with a displacement groove 341 for providing relative displacement of the fifth pin 35, and the ratchet portion 343 of the ratchet block 34 engages the tooth surface 21 of the rack 20, Thereby, the swinging of the ratchet block 34 can form the forwardly pushing the rack 20 and the reverse automatic clamping, and pressing the pressing handle 32 can automatically open the clamp 10, so as to have convenient operation and precision limit. The practical effect of the bit.

In summary, the present invention has indeed achieved a breakthrough structural design, and has improved invention content, and at the same time, can achieve industrial utilization and progress, and the present invention is not found in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, the application for invention patents is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

The above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; that is, the equivalent variations and modifications made by the scope of the present invention should still belong to the present invention. Within the scope of the patent.

Claims (4)

A quick clamp limit structure includes: a clamp pivotally connected with a first symmetrical arm and a second clamping arm by a shaft, and the clamp is sleeved at the shaft The first clamping arm and the second clamping arm are held by the elastic member, and the first clamping arm is disposed on the first clamping arm, and the second clamping arm is provided with a first pin. a second latch and a third latch; a rack having a tooth surface formed in an arc shape, and a hole is formed at one end of the rack, the rack being fixed to the first clip arm by the through hole a latching portion, the tooth surface is disposed between the first clamping arm and the second clamping arm; and a limiting component comprising a body, a pressing handle, a plunger and a spine a tooth block, the seat body is fixed to the second clamp arm by the second bolt and the third bolt, and a continuous perforation is formed at a middle portion of the seat body, and the seat body is respectively communicated at two ends of the through hole The utility model has a front receiving groove and a rear receiving groove, wherein the pressing handle is pivoted to the seat body by a fourth pin, and the pressing handle is formed at one end a pushing portion is located in the rear receiving groove of the seat body, the jack is disposed in the through hole of the seat body, and the jack is formed with a head at one end of the rear receiving groove, and the jack The ejector pin is locked with a circular block at one end of the front accommodating slot, and the ejector pin is provided with a spring for abutting against the base body and the head, the ratchet block is provided with a displacement slot and a circular block hole, and the shank The ratchet block is inserted into the front receiving groove by a fifth pin, and the round block of the jack is coupled to the block hole of the ratchet block, and the ratchet block is formed with a spine a tooth portion, and the tooth surface of the rack is controllably engaged by the ratchet portion. The limit structure of the quick clamp according to the first aspect of the invention, wherein the first clamp arm is formed with a concave bottom surface at a position where the first bolt is mounted, and the rack is formed with a support And the pressing portion is pressed against the concave bottom surface of the first clamping arm. The limit structure of the quick clamp according to the first aspect of the invention, wherein the second clamp arm has a concave space at a position where the second pin and the third pin are mounted, and the pressure handle is provided The other end of the push portion extends a handle portion, and the handle portion moves in a concave space of the second clamp arm. The limit structure of the quick clamp according to the first aspect of the invention, wherein the displacement groove of the ratchet block is formed with an upward movement position and a downward movement position, and the upward movement position and the downward movement position are formed. And an adjustment position, wherein the ratchet block can swing along the fifth pin by using the upshift position, the downshift position and the adjustment position, thereby controlling the meshing state of the ratchet portion and the tooth surface of the rack.