CN206185722U - Crucible tongs - Google Patents

Abstract

The utility model discloses a crucible tongs, including pincers mouth, round pin axle and pincers handle, wherein: the pincers mouth includes circular arc centre gripping mouth, circular arc centre gripping mouth is provided with elastic connecting piece for crucible tongs's symmetry axis symmetry, the elastic connecting piece lower extreme is connected with the radius and is less than the radial elastic support of circular arc centre gripping mouth pincers, through the setting, take elastic connection piece can take place deformation when the centre gripping crucible, laminate with the crucible, support pincers simultaneously and also can take place certain deformation according to the shape of crucible, the conflict to the crucible keeps, in -process at moving crucible, the trend of skew can be offset under the elastic reaction that clamps with supporting at the connection piece, and the area of contact between crucible and the crucible tongs is greatly increased also, it is more stable when the crucible tongs centre gripping, be difficult for dropping, thereby ensuring high safety in use.

Description

A kind of crucible tongs

Technical field

The utility model is related to a kind of fixture, more particularly to a kind of crucible tongs.

Background technology

Crucible tongs are generally used for clamping in the lab crucible, crucible cover, evaporating dish etc. needs to carry out calcination and heating Vessel, traditional crucible tongs are generally scissor-shaped, are divided into the Multiple Types such as long, medium and short.

At present, the Chinese patent of Publication No. CN205254825U discloses a kind of crucible tongs, and the crucible tongs include each With clamping part and handle portion and the first caliper and the second caliper that are hingedly connected together, first caliper near described The position of handle portion is provided with the protective plate for allowing first caliper and the second caliper folding.

But blessing position and the contact position of crucible of the crucible tongs are generally aligned in the same plane, in mobile crucible, crucible holds Easily shake, clamp unstable.

Utility model content

The purpose of this utility model is to provide a kind of crucible tongs for clamping stabilization.

Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of crucible tongs, including Jaw, bearing pin and clamp handle, wherein：The jaw includes circular arc clamp port, and the circular arc clamp port is symmetrical relative to crucible tongs Axial symmetry is provided with flexible connection piece, and the flexible connection piece lower end is connected with elasticity branch of the radius less than circular arc clamping port radius Support pincers.

By using above-mentioned technical proposal, the connection sheet with elasticity can be deformed upon when crucible is clamped, and be pasted with crucible Close, while support clamp can also occur certain deformation according to the shape of crucible, the conflict to crucible is kept, in mobile crucible During, the trend of skew can be cancelled under the elastic reaction of connection sheet and support clamp, and between crucible and crucible tongs Contact area is also greatly increased, and is more stablized when crucible tongs are clamped, and is difficult to drop, it is ensured that the safety for using.

The utility model is further arranged to：The flexible connection piece is drawn close in opposite directions with the plane of symmetry of crucible tongs into 30 ° of angles.

By using above-mentioned technical proposal, flexible connection piece is in 30 ° of angles, more than the angle of inclination of general crucible wall, institute Can guarantee that the conflict of connection sheet and side wall when in use, so that support clamp can preferably fit with crucible, good fixing effect.

The utility model is further arranged to：The clamp handle includes handle and is arranged on opposite between handle and bearing pin Kink, is connected with the spring of extended state between the kink.

By using above-mentioned technical proposal, the setting of kink can be when heat be transmitted on crucible tongs, molecular motion Need to produce certain deflecting, while can also extend transmission distance, slow down the transmission of heat, it is to avoid handling position temperature mistake It is high；While kink provides position for the installation of spring, can facilitate and spring is installed, the spring of extended state has holding The active force that crucible tongs are clamped, when needing to use, force opens crucible tongs, and after clipping, spring can aid in the staff to carry out jointly Clamp, the clamping force to crucible is bigger, it is ensured that to the stable holding of crucible.

The utility model is further arranged to：The kink is bent using right angle transition.

By using above-mentioned technical proposal, the iris action of the kink of right angle transition when heat is transmitted more preferably, has Stronger heat-insulating capability.

The utility model is further arranged to：The jaw is also included to be arranged on the end wall vertical with clamping plane Pincers, the wall pincers are in opposite direction with support clamp.

By using above-mentioned technical proposal, on the one hand wall pincers can conveniently clamp the side wall of vessel, to the less device of weight Ware is moved, while wall pincers can carry out the protection of top when crucible is clamped to crucible, is held prior to crucible contact furnace wall etc. The position for easily colliding, it is ensured that crucible will not be encountered in moving process, improves transportation stability.

The utility model is further arranged to：Some grooves for increasing friction are provided with the wall pincers.

By using above-mentioned technical proposal, the setting of groove improves the roughness of wall jaw surfaces, so as in clamper During the side wall of ware, with stronger frictional force, it is ensured that the clamping to vessel, it is to avoid slide.

The utility model is further arranged to：The clamp handle is divided into left handle and right handle, and the left handle is near the position of handle The protective plate for being equipped with and allowing left handle and right handle folding is installed, the protective plate is parallel with bearing pin.

By using above-mentioned technical proposal, the setting of protective plate can separate the heat of the high temperature services such as self-heating stove, can be with Allow operating personnel that crucible tongs are used in the case where heat release gloves need not be dressed such that it is able to flexibly to operate crucible tongs, reduce Operational error.

The utility model is further arranged to：The protective plate is being provided with insulating layer of asbestos towards jaw side.

By using above-mentioned technical proposal, asbestos have good high temperature resistant and heat-insulating capability, right so as to be effectively ensured The isolation of heat, improves security when crucible tongs are used.

The utility model is further arranged to：Jaw side is being provided with gripping handle on described protective plate.

By using above-mentioned technical proposal, when mobile crucible is clamped, a hand holds handle, and only one hand is exerted oneself, easily operation Shakiness, the gripping handle on protective plate can provide the position for gripping for another hand, while both hands are moved jointly, operation is more It is reliable, it is to avoid danger occurs.

The utility model is further arranged to：Heat resistant rubber set is provided with the handle of the clamp handle.

By using above-mentioned technical proposal, heat resistant rubber set is avoided that clamp handle overheat scalds palm, while when raising is used Comfort level.

In sum, the utility model has the advantages that：

1st, crucible is gripped using resilient support pincers and flexible connection piece auxiliary clamp port, contact area increases Greatly, crucible is not easy relative crucible tongs vibrations, it is ensured that clamping stabilization；

2nd, the setting covered using leg kink, protective plate and heat resistant rubber can improve thermal protection ability, it is to avoid when using Burnt, improved security；

3rd, use the spring of extended state that a pretightning force is provided for crucible tongs, can be lighter when in use, protection Handle capable of being on plate is conveniently puted forth effort, and two hands exert a force jointly, more stablizes.

Brief description of the drawings

Fig. 1 is the structural representation of embodiment；

Fig. 2 is the open mode structural representation of embodiment.

In figure：1st, jaw；2nd, bearing pin；3rd, clamp port；4th, connection sheet；5th, support clamp；6th, handle；7th, kink；8th, spring； 9th, wall pincers；10th, groove；11st, left handle；12nd, right handle；13rd, protective plate；14th, gripping handle.

Specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

Embodiment：

A kind of crucible tongs, referring to Figures 1 and 2, including jaw 1, bearing pin 2 and clamp handle, the clamping including arc-shaped on jaw 1 Mouth 3 and the wall perpendicular to crucible tongs plane clamp 9, annular detent is provided with wall pincers 9 and increases friction, conveniently to the side of vessel Wall is clamped, and 30 ° of flexible connection pieces at angle 4 of opposite tilt, the other end connection of connection sheet 4 are symmetrically arranged with clamp port 3 Resilient support clamp 5, during clamping crucible, has resilient support clamp 5 and struts laminating by crucible.

Referring to Figures 1 and 2, clamp handle is followed successively by the handle 6 with heat resistant rubber set, heat-insulated use protective plate 13 and right inwards from outer The right angle kink 7 of title, is connected with the spring 8 of the state of being stretched between right angle kink 7, with the work for keeping crucible tongs to clamp With clamp handle is divided into left handle 11 and right handle 12, and protective plate 13 is fixed in left handle 11, is provided with protective plate 13 for the folding of right handle 12 Breach, protective plate 13 has insulating layer of asbestos towards the side of jaw 1, and opposite side is provided with gripping handle 14.

When using the crucible tongs, first force opens crucible tongs, and position is put well, sheds the effect for opening crucible tongs Power, and apply the active force for clamping, support clamp 5 contacts crucible, deforms and be adjacent in advance, and then connection sheet 4 is opened by top, clamping Mouth 3 clamps crucible, and crucible is clamped, and another hand catches gripping handle 14, common force, and crucible tongs are moved.

This specific embodiment is only that, to explanation of the present utility model, it is not to limitation of the present utility model, ability Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but As long as all being protected by Patent Law in right of the present utility model.

Claims (10)

1. a kind of crucible tongs, including jaw (1), bearing pin (2) and clamp handle, it is characterised in that：The jaw (1) clamps including circular arc Mouth (3), the circular arc clamp port (3) is symmetrically arranged with flexible connection piece (4) relative to the symmetry axis of crucible tongs, and the elasticity is even Contact pin (4) lower end is connected with resilient support pincers (5) of the radius less than circular arc clamp port (3) radius.

2. a kind of crucible tongs according to claim 1, it is characterised in that：The flexible connection piece (4) is right with crucible tongs Title face is drawn close in opposite directions into 30 ° of angles.

3. a kind of crucible tongs according to claim 1, it is characterised in that：The clamp handle includes handle (6) and is arranged on handle Opposite kink (7) between hand (6) and bearing pin (2), is connected with the spring (8) of extended state between the kink (7).

4. a kind of crucible tongs according to claim 3, it is characterised in that：The kink (7) is bent using right angle transition.

5. a kind of crucible tongs according to claim 1, it is characterised in that：The jaw (1) is also included to be arranged on end Wall pincers (9) vertical with clamping plane, wall pincers (9) is in opposite direction with support clamp (5).

6. a kind of crucible tongs according to claim 5, it is characterised in that：Some increasings are provided with wall pincers (9) The groove (10) of friction.

7. a kind of crucible tongs according to claim 1, it is characterised in that：The clamp handle is divided into left handle (11) and right handle (12), the left handle (11) is being provided with the protective plate of permission left handle (11) and right handle (12) folding near the position of handle (6) (13), the protective plate（13）With bearing pin（2）It is parallel.

8. a kind of crucible tongs according to claim 7, it is characterised in that：The protective plate (13) is towards jaw (1) Side is provided with insulating layer of asbestos.

9. a kind of crucible tongs according to claim 7 or 8, it is characterised in that：Away from pincers on described protective plate (13) Mouth (1) side is provided with gripping handle (14).

10. a kind of crucible tongs according to claim 1, it is characterised in that：Handle (6) place of the clamp handle is provided with heat-resisting Rubber sleeve.