CN101985212B

CN101985212B - Clamp

Info

Publication number: CN101985212B
Application number: CN2010101846175A
Authority: CN
Inventors: 仇建平
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: HANGZHOU LIANHE ELECTRICAL MANUFACTURING CO., LTD.
Priority date: 2010-05-27
Filing date: 2010-05-27
Publication date: 2012-07-25
Anticipated expiration: 2030-05-27
Also published as: CN101985212A

Abstract

The invention discloses a clamp, the existing clamp is difficult to meet the using requirements of leading a guide rod to realize big-step feeding in neutral gear and obtaining greater clamping force during clamping, a fixed clamp body of the clamp comprises a grab handle which extends to the end which is not fixed with a clamping head and a fixed supporting part, a force application handle is arranged by corresponding to the grab handle, and a force application part for pushing a force application clamping piece, a first fulcrum part which is farther away from the force application part and a second fulcrum part which is nearer to the force application part are arranged on the force application handle, wherein an elastic element is connected between the first fulcrum part and the fixed clamp body, and the second fulcrum part is arranged by corresponding to the fixed supporting part. The clamp can lead the force application handle to act by taking the first fulcrum part as the fulcrum in the neutral gear, thereby leading the force application part of the force application handle to obtain a greater amount of feeding and realizing fast feeding; and the clamp can further lead the force application handle to act by taking the second fulcrum part as the fulcrum during clamping, thereby leading the force application part of the force application handle to obtain the greater clamping force.

Description

Anchor clamps

Technical field

The present invention relates to a kind of anchor clamps, especially a kind ofly when neutral, can make the big stepping of guide rod and when clamping, can obtain the anchor clamps of larger clamping force.

Background technology

The existing anchor clamps that comprise retaining clip, movable clamp, guide rod, afterburning handle; For guide rod disposes locking intermediate plate and afterburning intermediate plate; The guide rod that is located on the retaining clip through the afterburning intermediate plate order of afterburning handle drives moves the distance realization clamping that changes between retaining clip, the movable clamp; But the afterburning handle of existing structure anchor clamps is is often shipped and resell on another market through one and is connected on the retaining clip; Grip the feeding distance clamping force basically identical that guide rod that afterburning handle makes produces during clamping at every turn, be difficult to the instructions for use of satisfying the big stepping of neutral guide rod in season, can obtaining larger clamping force when clamping.

In addition, the movable clamp of existing anchor clamps is fixed on the guide rod usually, and the position of movable clamp and retaining clip relation is immutable, so anchor clamps only have clamping or supporting role.In order to make anchor clamps both have clamping action, also have a supporting role; Though can movable clamp be movably connected on the guide rod; But existing connected mode is difficult to the bond strength of assurance activity clamp and guide rod and has enough clamping forces, also is difficult to realize convenient dismounting.

Also have, when anchor clamps passed through retaining clip, movable clamp grip objects, the locking intermediate plate was locked guide rod; Need remove of the locking of locking intermediate plate during release to guide rod; And prior art normally prizes the locking intermediate plate with the aid outside the anchor clamps and leaves realization, and operation inconvenience is laborsaving yet.

Summary of the invention

Primary and foremost purpose of the present invention provides the big stepping of a kind of neutral guide rod in season, can obtain the anchor clamps of larger clamping force when clamping.For this reason, the present invention adopts following technical scheme:

Anchor clamps; Comprise the retaining clip with fixed chuck, movable clamp, guide rod, afterburning handle with active chuck; Described guide rod is located on the described retaining clip; And grip sheet and afterburning intermediate plate for the guide rod configuration lock; An end and described fixed chuck that described movable clamp is installed in said guide rod are corresponding with active chuck; It is characterized in that: described retaining clip has the lever, the fixed support portion that extend to the other end of said fixed chuck, and described afterburning handle is corresponding with described lever and establish, and has one on the said afterburning handle to be used to push against the afterburning portion of said afterburning intermediate plate, first fulcrum and the second nearer fulcrum of the said afterburning portion of distance that the said afterburning portion of distance is far away; Be connected flexible member between described first fulcrum and the retaining clip, described second fulcrum is corresponding with described fixed support portion and establish.

Second purpose of the present invention is the function of on the basis of realizing the first purpose technical scheme, giving convenient dismounting of anchor clamps and installation; Make the live splint body realize the position replacing at the both ends of guide rod fast; Make anchor clamps both have clamping action, also have a supporting role; Also have enough clamping forces, for this reason, the present invention adopts following technological means:

The both ends of said guide rod are provided with locating slot; Described movable clamp comprises a movable pedestal that is set on the said guide rod; Described active chuck is connected through shipping and reselling on another market on the described movable pedestal; Described active chuck is provided with lock pin, between described active chuck and movable pedestal, be connected with flexible member and make described lock pin be positioned at corresponding locating slot, said flexible member to the elastic force direction of active chuck when clamping active chuck receive force direction consistent.

The 3rd purpose of the present invention is can be convenient to discharge and the labour-saving effect when on the basis of realizing the first purpose technical scheme, giving clamp, and for this reason, the present invention adopts following technological means:

Connect the release lever of a corresponding said lever on the described retaining clip, have the release portion that is used to push against said locking intermediate plate on this release lever.

The invention has the beneficial effects as follows:

1, through two fulcrums being set for afterburning handle; Neutral afterburning handle in season is the fulcrum action with first fulcrum; Through suitable arm of force relation can make the afterburning portion of afterburning handle obtain a bigger amount of feeding when gripping afterburning handle at every turn, realize fast feed; During clamping, make that afterburning handle is fulcrum action with second fulcrum, through suitable arm of force relation can make the afterburning portion of afterburning handle obtain a bigger clamping force when gripping afterburning handle at every turn; When reality is used, with the duty of anchor clamps, the automatic conversion work state of first fulcrum and second fulcrum.

2, through the both ends at guide rod locating slot is set, active chuck is connected on the movable pedestal and is provided with lock pin through shipping and reselling on another market, make lock pin be positioned at locating slot with flexible member, convenient dismounting and the installation of realization activity clamp on guide rod thus; Make anchor clamps both have clamping action, also have a supporting role through the both ends that movable clamp are installed in guide rod; And when clamping, clamping force forces lock pin to be positioned at locating slot, and the reliable connection of innervate clamp and guide rod also has enough clamping forces.

Through setting up a release lever, only can realize during release that 3, especially release lever is located between lever and the afterburning handle, compact conformation, easy to operate can also make full use of leverage and reach laborsaving effect through gripping lever and release lever.

Description of drawings

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

Fig. 2 grips the sketch map of afterburning handle when neutral for anchor clamps of the present invention.

Fig. 3 grips the sketch map of afterburning handle when clamping for anchor clamps of the present invention.

Fig. 4 is installed in movable clamp for anchor clamps of the present invention the sketch map of the guide rod other end.

Label declaration among the figure: 1-fixed chuck, 2-retaining clip, 3-active chuck, the movable clamp of 4-, 5-guide rod, the afterburning handle of 6-; 7-locks intermediate plate, the afterburning intermediate plate of 8-, 9-lever, 10-fixed support portion, 11-reinforcing portion; 12-first fulcrum, 13-second fulcrum, 14-flexible member, 15-bearing pin, 16-first cavity; 17-first cover plate, the 18-perforation, 19-locks flexible member, 20-return flexible member, 21-second cavity; 22-second cover plate, 23A, 23B-locating slot, the movable pedestal of 24-, 25-ships and resell on another market, the 26-lock pin; The 27-flexible member, 28-hole portion, 29-press section, 30A, 30B-alignment pin, 31-release lever; 32-release portion, 33-ships and resell on another market, the 34-minor flaps, the 35-object grips the force arm of afterburning handle during the L1-neutral; Grip the resistance arm of afterburning handle during the L2-neutral, L3-grips the force arm of afterburning handle when clamping, and L4-grips the resistance arm of afterburning handle when clamping, grip the distance that afterburning handle moves afterburning intermediate plate during the D1-neutral at every turn, and D2-grips the distance that afterburning handle moves afterburning intermediate plate at every turn when clamping.

The specific embodiment

Below in conjunction with Figure of description the present invention is further specified:

As shown in Figure 1; Anchor clamps of the present invention comprise the retaining clip 2 with fixed chuck 1, the movable clamp 4 with active chuck 3, guide rod 5, afterburning handle 6; Guide rod 5 is located on the retaining clip 2; And be that guide rod 5 configuration lock are gripped sheet 7 and afterburning intermediate plate 8; An end (being illustrated as the left part) and fixed chuck 1 that movable clamp 4 is installed in guide rod 5 are corresponding with active chuck 3; Retaining clip 2 has a lever that extends to the other end of fixed chuck 19, a fixed support portion 10, and afterburning handle 6 and lever 9 are corresponding and establish, and has the second nearer fulcrum 13 of the afterburning portion of afterburning portion of an afterburning portion 11 (concrete can be mounted in the axle on the afterburning handle) that is used to push against afterburning intermediate plate 8, distance 11 first fulcrum 12 far away and distance 11 on the afterburning handle 6; It is corresponding and establish to be connected flexible member 14, the second fulcrum 13 and fixed support portion 10 between first fulcrum 12 and the retaining clip 2.

For fear of the damaging object surface, the position of fixed chuck 1, active chuck 3 contact clamping objects can use elastomeric material (like rubber) to process; For proof strength and rigidity, guide rod 5 usefulness metal materials support, and retaining clip 2, movable clamp 4, afterburning handle 6 can be made of plastic.

These anchor clamps are because first fulcrum 12, second fulcrum 13 are different with the distance of afterburning portion 11, and its effect is difference also:

As shown in Figure 2; When retaining clip 2, when movable clamp 4 does not have the clamping object (neutral); Hold lever 9 and afterburning handle 6, then because of the afterburning handle 6 of the effect that receives flexible member 14 is that fulcrum moves with first fulcrum 12, second fulcrum 13 breaks away from fixed support portion 10; Far away because of the afterburning portion of first fulcrum 12 distance 11 again; Regard afterburning handle 6 as a lever this moment, and the ratio of force arm L1 (distance of grip part and first fulcrum 12) and resistance arm L2 (distance of the afterburning portion 11 and first fulcrum 12) that then grips afterburning handle 6 is less, grips afterburning handle 6 at every turn and make afterburning intermediate plate 8 with the guide rod 5 bigger distance B 1 that moves right; Reinforcing portion 11 can obtain a less thrust and guide rod by afterburning intermediate plate clamping and realize fast feed to the right; And owing to be neutral, grip also more laborsaving, the situation that this kind situation is particularly useful for user's another hand can not assist the time.

As shown in Figure 3; When retaining clip 2, movable clamp 4 clamping objects 35 and when desiring further grip objects; Hold lever 9 and afterburning handle 6, then the effect because of chucking power makes flexible member 14 distortion, and second fulcrum 13 is supported by fixed support portion 10; Afterburning handle 6 is the fulcrum action with second fulcrum 13; Regard afterburning handle 6 as a lever this moment equally, then nearer because of the afterburning portion of second fulcrum 13 distance 11, and the ratio of force arm L3 (distance of the grip part and second fulcrum 12) and resistance arm L2 (distance of the afterburning portion 11 and second fulcrum 12) that grips afterburning handle 6 is bigger; Grip at every turn afterburning handle 6 afterburning intermediate plate 8 is moved right with guide rod 5 (D2＜D1), afterburning portion 11 can obtain a bigger thrust and guide rod 5 by afterburning intermediate plate 8 clampings and realize feeding at a slow speed to the right and object is clamped a less distance B 2.

When reality is used, when retaining clip 2, movable clamp 4 grasp in the process of object 25 and further clamping first fulcrum 12 and second fulcrum, 13 automatic conversion work states.

As to further the improving and replenishing of technique scheme, the present invention also comprises following additional technological means, selects for use so that act on when implementing according to it:

The flexible member 14 that is connected between first fulcrum 12 and the retaining clip 2 is a torque spring, and this torque spring is positioned on the retaining clip 2 through bearing pin 15, and the two ends of this torque spring are supported on respectively on first fulcrum 12 and the retaining clip 2.This structure can utilize fixed chuck 1 to settle torque spring; Make compact conformation and be easy to and realize; In order to settle torque spring; First cavity, 16, the first fulcrum 12 are set in fixed chuck 1 are located in this first cavity 16, with screw one first cover plate 17 is connected to cover on the fixed chuck 1 again and establishes first cavity 16 with torque spring.

Fixed

support portion

10,13 ones at second fulcrum are circular-arc.So that second fulcrum 13 can be movable in fixed support portion 10 during as fulcrum, also be convenient to reset after second fulcrum 13 breaks away from the fixed support portion 10.

Afterburning handle 6 has a perforation 18, and guide rod 5 is located in this perforation 18; Effect has locking flexible member 19 on the locking intermediate plate 7, and effect has return flexible member 20 on the afterburning intermediate plate 8; Locking intermediate plate 7, afterburning intermediate plate 8 are enclosed within on the guide rod 5, and locking flexible member 19, return flexible member 20 are for being enclosed within the spiral spring on the guide rod 5.This structure can will be locked intermediate plate 7, afterburning intermediate plate 8, locking flexible member 19 by guide rod 5, return flexible member 20 constrains in the operating position; For the ease of assembling; Second cavity 21 is set in retaining clip 2; Locking intermediate plate 7, afterburning intermediate plate 8, locking flexible member 19, return flexible member 20 are located in this second cavity 21; With screw one second cover plate 22 is connected to cover on the retaining clip 2 again and establishes this second cavity 21, stretch in the fixed chuck, make this second cavity be communicated with first cavity for first fulcrum that makes afterburning handle.

The both ends of guide rod 5 are provided with locating

slot

23A, 23B; Movable clamp 4 comprises a movable pedestal 24 that is set on the guide rod 5; Active chuck 3 25 is connected on the movable pedestal 24 and the pin 25 that can on movable pedestal 24, rotate rotates in the certain angle scope through shipping and reselling on another market; Active chuck 3 is provided with lock pin 26; Between active chuck 3 and movable pedestal 24, be connected with flexible member 27 (specifically can be tension spring) and make lock pin 26 be positioned at the locating slot of guide rod 5 and whole movable clamp 4 is locked on the guide rod, the elastic force direction of 27 pairs of active chucks 3 of flexible member when clamping active chuck receive force direction consistent, for elastic elements 27; A minor flaps 34 is set on movable pedestal 24, opens minor flaps 34 and can install.Thus, the elastic force that overcomes flexible member 27 through rotation active chuck 3 makes lock pin 26 in the locating slot of guide rod, deviate from, and then can take advantage of a situation whole movable clamp is unloaded from an end of guide rod and is installed on the end of guide rod according to this mode.According to this structure; When shown in Fig. 1-3, movable clamp 4 being installed in the left end of guide rod 5; Can come grip objects with retaining clip 2, movable clamp 4, as shown in Figure 4 when movable clamp 4 is installed in the right-hand member of guide rod 5, can come supporting object with retaining clip 2, movable clamp 4.Especially; Since the elastic force direction of 27 pairs of active chucks 3 of flexible member during with clamping active chuck receive force direction consistent; Therefore clamping force is big more, and lock pin 26 can be positioned at the locating slot of guide rod more, whole movable clamp 4 can be reliably and guide rod 5 combine.Operate for the ease of dismounting; Establish a hole portion 28 on the movable pedestal 24; Active chuck 3 has the press section 29 that extends to hole portion 28; When desiring to pull down movable clamp 4, push the elastic force that the promptly rotatable active chuck 3 in press section 29 overcomes flexible member 27 with hand and make lock pin 26 in the locating slot of guide rod, deviate from, also can make lock pin rotate an angle and movable pedestal is enclosed within on the guide rod in lock pin is stuck in the locating slot of guide rod during installation according to this operation.

The both ends of guide rod 5 are provided with alignment pin 30A, the 30B of corresponding locating slot, make lock pin over against locating slot so that movable clamp 4 is installed in 5 last times of guide rod to movable clamp 4 location.

The release lever 31 that connects a corresponding lever 9 on the retaining clip 4; Have the release portion 32 that is used to push against locking intermediate plate 7 on this release lever 31, only can make release portion that 32 pushing and pressing locking intermediate plates, 7 disengaging guide rods 5 are realized discharging with release lever 31 during release through gripping lever 9; Further, release lever 31 shipped and resell on another market between lever 9 and afterburning handle 6 and by one 33 to be connected on the retaining clip 2, and compact conformation, easy to operate can also make full use of leverage and reach laborsaving effect.

Structure shown in Fig. 1-4 is that the present invention is applied in above-mentioned each technical characterictic a preferred embodiment that obtains on the anchor clamps product.During grip objects,, as shown in Figure 2 before retaining clip 2, movable clamp 4 clamping objects with held lever 9 and afterburning handle 6; Afterburning handle 6 is the fulcrum action with first fulcrum 12; Every with lever of held and afterburning handle, guide rod is stuck bigger distance B 1 of feeding to the right by afterburning intermediate plate 8, when discharging afterburning handle 6; Return flexible member 20 supports afterburning intermediate plate 8 and resets; Grasp object 35 with held lever and afterburning handle until retaining clip as shown in Figure 32, movable clamp 4 so one by one, continue to grip lever and afterburning handle, 6 on afterburning handle is the fulcrum action with second fulcrum 13; Every with lever of held and afterburning handle, guide rod 5 is stuck less distance B 2 of feeding to the right by afterburning intermediate plate 8 and obtains bigger clamping force; When needing to discharge after the clamping; Only with hand grips lever 9 and release lever 31; Then break away from guide rods 5 and remove the locking of guide rod is realized discharging and unclamping from held object by release portion 32 pushing and pressing locking intermediate plates 7, this moment can the move left and right guide rod so that movable clamp 4 is adjusted to the appropriate location.As shown in Figure 4 during with retaining clip 2, movable clamp 4 supporting objects, mode of operation will not be given unnecessary details as Fig. 2,3.

Among the present invention; So-called retaining clip is to name because of being in a stable position (on the object that relies on) basically with held in use, and so-called movable clamp is because of naming with mobile the moving with respect to retaining clip of guide rod in use.

Claims

1. anchor clamps; Comprise the retaining clip (2) of (1) that has fixed chuck, movable clamp (4), guide rod (5), afterburning handle (6) with active chuck (3); Described guide rod (5) is located on the described retaining clip (2); And grip sheet (7) and afterburning intermediate plate (8) for guide rod (5) configuration lock; An end and described fixed chuck (1) that described movable clamp (4) is installed in said guide rod (5) are corresponding with active chuck (3); It is characterized in that: described retaining clip (2) has the lever (9), the fixed support portion (10) that extend to the other end of said fixed chuck (1); Described afterburning handle (6) is corresponding with described lever (9) and establish; Have afterburning portion (11), a said afterburning portion of distance (11) nearer second fulcrum (13) of first fulcrum (12) and a said afterburning portion of distance (11) far away that is used to push against said afterburning intermediate plate (8) on the said afterburning handle (6), be connected flexible member (14) between described first fulcrum (12) and the retaining clip (2), described second fulcrum (13) is corresponding with described fixed support portion (10) and establish.

2. anchor clamps according to claim 1; It is characterized in that the flexible member (14) that is connected between said first fulcrum (12) and the retaining clip (2) is a torque spring; This torque spring is positioned on the said retaining clip (2) through bearing pin (15), and the two ends of this torque spring are supported on respectively on described first fulcrum (12) and the retaining clip (2).

3. anchor clamps according to claim 1 is characterized in that described fixed support portion (10), second fulcrum (13) are circular-arc.

4. anchor clamps according to claim 1 is characterized in that described afterburning handle (6) has a perforation (18), and described guide rod (5) is located in this perforation (18).

5. anchor clamps according to claim 1 is characterized in that described locking intermediate plate (7) effect of going up has locking flexible member (19), and described afterburning intermediate plate (8) effect of going up has return flexible member (20).

6. anchor clamps according to claim 5 is characterized in that described locking intermediate plate (7), afterburning intermediate plate (8) are enclosed within on the described guide rod (5), and described locking flexible member (19), return flexible member (20) are for being enclosed within the spiral spring on the said guide rod (5).

7. anchor clamps according to claim 1; The both ends that it is characterized in that said guide rod (5) are provided with locating slot (23A, 23B); Described movable clamp (4) comprises a movable pedestal (24) that is set on the said guide rod (5); Described active chuck (3) is connected on the described movable pedestal (24) through ship and resell on another market (25); Described active chuck (3) is provided with lock pin (26), between described active chuck (3) and movable pedestal (24), be connected with flexible member (27) and make described lock pin (26) be positioned at corresponding locating slot, said flexible member (27) to the elastic force direction of active chuck (3) when clamping active chuck receive force direction consistent.

8. anchor clamps according to claim 7 is characterized in that having a hole portion (28) on the described movable pedestal (24), and described active chuck (3) has the press section (29) that extends to said hole portion (28).

9. anchor clamps according to claim 1 is characterized in that described retaining clip (2) upward connects the release lever (31) of a corresponding said lever (9), has the release portion (32) that is used to push against said locking intermediate plate (7) on this release lever (31).

10. anchor clamps according to claim 9, it is characterized in that described release lever (31) is positioned between said lever (9) and the afterburning handle (6) and by one ship and resell on another market (33) be connected on the described retaining clip (2).