CN207586014U - jaw device - Google Patents

Abstract

The utility model provides a kind of jaw device, including：First jaw, the second jaw and clamp body being oppositely arranged with the first jaw, the clamp body include：Clamp body column, the first fixture mount, the second fixture mount, the first connecting shaft and the second connecting shaft；First fixture mount is connect by the first connecting shaft with the first jaw, and the second fixture mount is connect by the second connecting shaft with the second jaw；First jaw is rotated around the first connecting shaft, and the second jaw is rotated around the second connecting shaft.The beneficial effects of the utility model are：One, can solve Loose tube can not be broken in testing machine range or non-validity be broken the problems such as.Secondly, the utility model in detection process, it is easy to operate, be not required to carry out the work such as coiling to sample, reduce workload.Thirdly, the utility model jaw adapt to multiple clamping apparatus body, jaw shapes, size have changeability.Four, simple in structure, handling ease is at low cost.

Description

Jaw device

Technical field

The utility model belongs to grip device technical field more particularly to a kind of jaw device.

Background technology

It is more and more severe to the challenge of optical cable application environment with popularizing for fiber optic communication, to the performance requirement of optical cable It is more stringent.Optical fiber loose tube is one of most important element of optical cable, can be played a protective role in cable configuration to optical fiber. The performance of Loose tube has a great impact to the loss, optical cable stretching and temperature characterisitic of optical fiber.So the performance to Loose tube is examined Survey is particularly important.

Loose tube is also referred to as secondary coated material, has in professional standard《The secondary quilt of YD/T 1118.1-2001 optical fiber Cover material first part：Polybutylene terephthalate (PBT)》With《YD/T 1118.2-2001 optical fiber secondary coated material-change Property polypropylene》Two standards, have in national standard《The secondary coated material part 1 of GB/T 20186.1-2006 optical fiber： Polybutylene terephthalate (PBT)》With《The secondary coated material part 2 of GB/T 20186.2-2008 optical fiber：Modified poly- third Alkene》, the performance requirement and detection method of Loose tube are provided and have been described, test method described in embodiment is with reference to more than Four standards carry out.When being tested at present using self-tightening clamp the tensile resistance of Loose tube, due to jaw clamping face annular knurl It is improper to choose, and being easy to cause sample in equipment range can not be pulled off or occur non-validity fracture, that is, be broken in jaw Or close to jaw.

Utility model content

Meet test requirements document the purpose of this utility model is to provide a kind of, can ensure that sample is had in equipment range Effect is broken, jaw device simple in structure.

The utility model provides a kind of jaw device, including：First jaw, the second pincers being oppositely arranged with the first jaw Mouth and clamp body, the clamp body include：Clamp body column, the first fixture mount, the second fixture mount, the first connecting shaft, And second connecting shaft；First fixture mount is connect by the first connecting shaft with the first jaw, and the second fixture mount passes through Second connecting shaft is connect with the second jaw；First jaw is rotated around the first connecting shaft, and the second jaw is rotated around the second connecting shaft.

Preferably, first jaw and the second jaw are equipped with fluting；The end of first fixture mount is located at the first pincers In the fluting of mouth, the end of the second fixture mount is located in the fluting of the second jaw.

Preferably, the limited block in the front positioned at first jaw and the second jaw is further included.

Preferably, the clamp body further includes the first clamp body crossbeam and the second clamp body crossbeam, first clamp body Crossbeam is connected to the first fixture mount and the second fixture mount and is located at the one side of the first fixture mount and the second fixture mount, Second clamp body crossbeam is also connected to the first fixture mount and the second fixture mount and positioned at the first fixture mount and the second fixture The another side of stent.

Preferably, the clamp body further includes multiple third connecting shafts, and a third connecting shaft sequentially connects the first fixture Body crossbeam one end, the first fixture mount and the second clamp body crossbeam one end, a third connecting shaft sequentially connect first Clamp body crossbeam the other end, the second fixture mount and second clamp body crossbeam the other end.

Preferably, the clamp body further includes spring, and the spring is set on clamp body column, and one end of spring abuts Between the first clamp body crossbeam and the second clamp body crossbeam, the other end of spring is connected on clamp body column.

Preferably, the clamp body further includes third fixture mount, the 4th fixture mount, the 5th fixture mount, the 6th folder Have stent and multiple third connecting shafts；The third fixture mount and the 5th fixture mount be all connected with the first fixture mount and Clamp body column, the 4th fixture mount and the 6th fixture mount are all connected with the second fixture mount and clamp body column.

Preferably, a third connecting shaft sequentially pass through third fixture mount one end, the first fixture mount one end and 5th fixture mount one end, a third connecting shaft sequentially pass through third fixture mount the other end, clamp body column, Yi Ji Five fixture mount the other end；One third connecting shaft sequentially pass through the 4th fixture mount one end, the second fixture mount one end, And the 6th fixture mount one end, a third connecting shaft sequentially pass through the 4th fixture mount the other end, clamp body column, with And the 6th fixture mount the other end.

Preferably, all third connecting shaft both ends are arranged circlip.

Preferably, the clamping face of first jaw and the second jaw has straight knurling.

The beneficial effects of the utility model are：

One, can solve Loose tube can not be broken in testing machine range or non-validity be broken the problems such as.

Secondly, the utility model in detection process, it is easy to operate, be not required to carry out the work such as coiling to sample, reduce Workload.

Thirdly, the utility model jaw adapt to multiple clamping apparatus body, jaw shapes, size have changeability.

Four, simple in structure, handling ease is at low cost.

Description of the drawings

Fig. 1 is the first jaw of the utility model jaw device and the vertical view of the second jaw discrete state；

Fig. 2 is the schematic diagram of the straight knurling of the first jaw and the second jaw shown in Fig. 1；

Fig. 3 is the explosive view of jaw device shown in Fig. 1；

Fig. 4 is the front view of jaw device shown in Fig. 1；

Fig. 5 is the schematic diagram of 2 sets of jaw device tensional states shown in Fig. 1.

Specific embodiment

The utility model discloses a kind of jaw device, and in the present embodiment, this jaw device has 2 sets, 2 sets of jaw devices For Loose tube stretching clamp.As depicted in figs. 1 and 2, this jaw device includes：First jaw 11 and the first jaw 11 are opposite The second jaw 12 and clamp body of setting.First jaw 11 and the second jaw 12 are pincers used by Loose tube stretching clamp Mouthful, loose tube set is clamped between the first jaw 11 and the second jaw 12, and the first jaw 11 and the second jaw 12 clamp loose tube set Clamping face has straight knurling 100, and clamp body is used to fix the first jaw 11 and the second jaw 12 and connect with stretcher.

The clamping face of first jaw 11 and the second jaw 12 has straight knurling 100, and annular knurl size should be according to specimen size It determines.Straight knurling increases the contact area of jaw and sample, and linear contact reduces sample discontinuity in jaw Possibility, so as to solve the problems, such as sample fracture in jaw.

As shown in Figure 3 and Figure 4, clamp body includes：Clamp body column 20, the first fixture mount 21, the second fixture mount 22, First clamp body crossbeam 23, the second clamp body crossbeam 24, third fixture mount 25, the 4th fixture mount 26, the 5th fixture mount 27th, the 6th fixture mount 28, the first connecting shaft 29, the second connecting shaft 30, multiple third connecting shafts 31, multiple circlips 32, And spring 33.

First jaw 11 and the second jaw 12 are equipped with fluting.

During assembling, the first fixture mount 21 is connect by the first connecting shaft 29 with the first jaw 11, the second fixture mount 22 It is connect by the second connecting shaft 30 with the second jaw 12, the first fixture mount 21 and the second fixture mount 22 are close to the first jaw 11 With at the second jaw 12 be in triangular shape.

The end of first fixture mount 21 is located in the fluting of the first jaw 11, and the end of the second fixture mount 22 is located at the In the fluting of two jaws 12.

Limited block 35 is located at the front of the first jaw 11 and the second jaw 12.

When there is no limited block 35.First jaw 11 is rotated around the first connecting shaft 29, and the second jaw 12 is around the second connecting shaft 30 rotations, multiple screws 34 do not slide for fixing the first connecting shaft 29 in the first jaw 11, multiple screws 34 It is not slid in the second jaw 12 for fixing the second connecting shaft 30.35 and first, second jaw 11,12 of limited block passes through screw 36 and gasket 37 connect, limited block 35 can limit the rotation of first, second jaw 11,12, to ensure first, second jaw 11st, it 12 can only slide in the same direction.

First clamp body crossbeam 23 and the second clamp body crossbeam 24 connect the first fixture mount 21 and the second fixture mount 22.

First clamp body crossbeam 23 and the second clamp body crossbeam 24 pass through connecting shaft 31,32 and first fixture branch of circlip 21 and second fixture mount 22 of frame connects, and the first clamp body crossbeam 23 and the second clamp body crossbeam 24 are used to fix first, second Fixture body support frame 21,22 and spring 33.

I.e.：First clamp body crossbeam 23 is connected to the first fixture mount 21 and the second fixture mount 22 and positioned at the first fixture The one side of 21 and second fixture mount 22 of stent, the second clamp body crossbeam 24 are also connected to the first fixture mount 21 and second Fixture mount 22 and the another side for being located at the first fixture mount 21 and the second fixture mount 22, a third connecting shaft 31 is sequentially Connect 24 one end of 23 one end of the first clamp body crossbeam, the first fixture mount 21 and the second clamp body crossbeam, one Three connecting shafts 31 sequentially connect 23 the other end of the first clamp body crossbeam, the second fixture mount 22 and the second clamp body crossbeam 24 the other end.

25 and the 5th fixture mount 27 of third fixture mount is all connected with the first fixture mount 21 and clamp body column 20, and one Three connecting shafts 31 sequentially pass through 25 one end of third fixture mount, 21 one end of the first fixture mount and the 5th fixture mount 27 one ends, a third connecting shaft 31 sequentially pass through 25 the other end of third fixture mount, clamp body column 20 and the 5th to press from both sides Has 27 the other end of stent；4th fixture mount 26 and the 6th fixture mount 28 are all connected with the second fixture mount 22 and clamp body is stood Column 20, a third connecting shaft 31 sequentially pass through 26 one end of the 4th fixture mount, 22 one end of the second fixture mount and the 6th 28 one end of fixture mount, a third connecting shaft 31 sequentially pass through 25 the other end of the 4th fixture mount, clamp body column 20, with And 28 the other end of the 6th fixture mount.

All 31 both ends of third connecting shaft are arranged circlip 32.

Clamp body column 20 includes column main body 201 and the column axis 202 being connected in column main body 201.Third is pressed from both sides Tool stent 25, the 4th fixture mount 26, the 5th fixture mount 27, the 6th fixture mount 28 are passed through by third connecting shaft 31 Column main body 201.

Spring 33 is set on the column axis 202 of clamp body column 20, and one end of spring 33 is connected to the first clamp body horizontal stroke Between 23 and second clamp body crossbeam 24 of beam, the other end of spring 3 be located at third to the 6th fixture mount 25,26,27,28 Top, i.e.,：The other end of spring 3 is connected in column main body 201.

Clamp body column 20, the first fixture mount 21, the second fixture mount 22, the first clamp body crossbeam 23, the second fixture Body crossbeam 24, third fixture mount 25, the 4th fixture mount 26, the 5th fixture mount 27 and the 6th fixture mount 28 To be rotated around third connecting shaft 31.

Spring 33 is used to apply clamping force to fixture, and when first, second jaw 11,12 closes, spring 33 should keep pressing Contracting state, to ensure certain pretightning force；When first, second jaw 11,12 clamps sample 40, spring 33 is compressed again, is protected It demonstrate,proves jaw and applies appropriate chucking power to sample.

Press the first fixture mount 21 and the second fixture mount 22 so that first, second jaw 11,12 detaches, by PBT Sample 60 is put between the first jaw 11 and the second jaw 12, and unclamps the first fixture mount 21 and the second fixture mount 22, from And sample 40 is held on clamp body, carry out tension test according to relevant criterion.

The beneficial effects of the utility model are：

One, can solve Loose tube can not be broken in testing machine range or non-validity be broken the problems such as.

Secondly, the utility model in detection process, it is easy to operate, be not required to carry out the work such as coiling to sample, reduce Workload.

Thirdly, the utility model jaw adapt to multiple clamping apparatus body, jaw shapes, size have changeability.

Four, simple in structure, handling ease is at low cost.

The preferred embodiment of the utility model described in detail above, but the utility model is not limited to above-mentioned implementation Detail in mode in the range of the technology design of the utility model, can carry out the technical solution of the utility model A variety of equivalents, these equivalents belong to the scope of protection of the utility model.

Claims (10)

1. a kind of jaw device, including：First jaw, the second jaw and clamp body being oppositely arranged with the first jaw, it is special Sign is：The clamp body includes：Clamp body column, the first fixture mount, the second fixture mount, the first connecting shaft, Yi Ji Two connecting shafts；First fixture mount is connect by the first connecting shaft with the first jaw, and the second fixture mount connects by second Spindle is connect with the second jaw；First jaw is rotated around the first connecting shaft, and the second jaw is rotated around the second connecting shaft.

2. jaw device according to claim 1, it is characterised in that：First jaw and the second jaw are equipped with out Slot；The end of first fixture mount is located in the fluting of the first jaw, and the end of the second fixture mount is located at opening for the second jaw In slot.

3. jaw device according to claim 1, it is characterised in that：It further includes positioned at first jaw and the second jaw Front limited block.

4. jaw device according to claim 1, it is characterised in that：The clamp body further include the first clamp body crossbeam and Second clamp body crossbeam, the first clamp body crossbeam are connected to the first fixture mount and the second fixture mount and positioned at the first folders Have stent and the one side of the second fixture mount, the second clamp body crossbeam is also connected to the first fixture mount and the second fixture mount And positioned at the another side of the first fixture mount and the second fixture mount.

5. jaw device according to claim 4, it is characterised in that：The clamp body further includes multiple third connecting shafts, One third connecting shaft sequentially connects the first clamp body crossbeam one end, the first fixture mount and the second clamp body crossbeam one End, a third connecting shaft sequentially connect first clamp body crossbeam the other end, the second fixture mount and the second clamp body Crossbeam the other end.

6. jaw device according to claim 4, it is characterised in that：The clamp body further includes spring, the spring pocket Be located on clamp body column, one end of spring is connected between the first clamp body crossbeam and the second clamp body crossbeam, spring it is another One end is connected on clamp body column.

7. jaw device according to claim 4, it is characterised in that：The clamp body further includes third fixture mount, Four fixture mounts, the 5th fixture mount, the 6th fixture mount and multiple third connecting shafts；The third fixture mount and Five fixture mounts are all connected with the first fixture mount and clamp body column, and the 4th fixture mount and the 6th fixture mount are all connected with second Fixture mount and clamp body column.

8. jaw device according to claim 7, it is characterised in that：One third connecting shaft sequentially passes through third fixture mount One end, the first fixture mount one end and the 5th fixture mount one end, a third connecting shaft sequentially pass through third fixture Stent the other end, clamp body column and the 5th fixture mount the other end；One third connecting shaft sequentially passes through the 4th fixture Stent one end, the second fixture mount one end and the 6th fixture mount one end, a third connecting shaft sequentially pass through the 4th Fixture mount the other end, clamp body column and the 6th fixture mount the other end.

9. the jaw device according to claim 5 or 8, it is characterised in that：All third connecting shaft both ends are arranged elasticity Baffle ring.

10. jaw device according to claim 1, it is characterised in that：The clamping face of first jaw and the second jaw With straight knurling.