CN213078503U

CN213078503U - Long-handle crucible tongs for glass experiment

Info

Publication number: CN213078503U
Application number: CN202021791624.7U
Authority: CN
Inventors: 姜怡辰; 熊川虎; 高月强
Original assignee: Shandong Kangyou Glass Material Co ltd
Current assignee: Shandong Kangyou Glass Material Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-30
Anticipated expiration: 2030-08-24

Abstract

The utility model relates to a long-handle crucible tongs for glass experiments, belonging to the field of gripping tools, comprising a first rod piece, a second rod piece, a heat insulation plate and an auxiliary chain; the front ends of the first rod piece and the second rod piece are bent to form an arc shape, the tail ends of the first rod piece and the second rod piece are bent to form a handle, and the first rod piece and the second rod piece are hinged with each other; the heat insulation plate is respectively connected with the first rod piece and the second rod piece, and the heat insulation plate is arranged adjacent to the handle; one end of the auxiliary chain is connected with the first rod piece and the second rod piece respectively, and the auxiliary chain and the handle are arranged on two sides of a hinged point of the first rod piece and the second rod piece respectively. A long handle crucible tongs for glass experiments, snatch the convenience, the security is high.

Description

Long-handle crucible tongs for glass experiment

Technical Field

The utility model relates to a crucible tongs especially relates to a long handle crucible tongs for glass experiments, and it belongs to the gripping means field.

Background

The crucible tongs are generally used for holding crucibles, baking boxes, evaporating dishes and the like, and are taken, moved and placed in the heating process. The prior crucible tongs comprise a long handle, a middle handle and a short handle. The long-handle crucible tongs are generally used for moving and taking a heating crucible of a high-temperature furnace. Medium-handled crucible tongs are commonly used for the removal of heated boxes in electric ovens. The short-handle crucible tongs are generally used for heating crucibles and evaporating dishes on electric furnaces and electric hot plates. The crucible tong handle is made of high-temperature resistant metal materials such as iron, copper alloy and the like. In the high-temperature furnace, an operator faces high-temperature operation, and the position of the crucible is required to be moved for multiple times in a hearth in the whole heating process so as to heat uniformly. The operator must wear asbestos gloves. The gloves are often too large, so that an operator cannot smoothly hold the crucible tongs, the operation cannot be free, and the crucible is easy to fall off and break. Causing the experiment to have to be restarted. Both time and capital are wasted. Meanwhile, at high temperature, the operation time is too long, and the danger of being scalded and burned is increased. In the glass experiment, the needed glass amount is large, a large crucible is needed, and a plurality of experiments are simultaneously carried out in a high-temperature furnace, so that the crucible tongs with safety and high efficiency are needed.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects existing in the prior art, the utility model provides a long-handle crucible tongs for glass experiments, which reduces the risk of scalding the operating workers.

The technical scheme is as follows: in order to achieve the purpose, the utility model discloses a long-handle crucible tongs for glass experiments, which comprises a first rod piece, a second rod piece, a heat insulation plate and an auxiliary chain; the front ends of the first rod piece and the second rod piece are bent to form an arc shape, the tail ends of the first rod piece and the second rod piece are bent to form a handle, and the first rod piece and the second rod piece are hinged with each other; the heat insulation plate is respectively connected with the first rod piece and the second rod piece, and the heat insulation plate is arranged adjacent to the handle; one end of the auxiliary chain is connected with the first rod piece and the second rod piece respectively, and the auxiliary chain and the handle are arranged on two sides of a hinged point of the first rod piece and the second rod piece respectively.

Further, the first and second rods are 2520 stainless steel.

Further, the heat insulation plate is semicircular.

Furthermore, the heat insulation plate is crescent; the heat insulation plate is connected with a knob, and the knob is in threaded connection with the first rod piece and the second rod piece respectively.

Furthermore, the heat insulation plate is attached with an asbestos layer, and the asbestos layer is attached to the side face, facing the front end of the first rod piece/the second rod piece, of the heat insulation plate.

Further, the auxiliary chain comprises a first chain, a second chain and a third chain; one end of the first chain is connected with the first rod piece, one end of the second chain is connected with the second rod piece, and the other end of the first chain and the other end of the second chain are connected with the same end of the third chain.

Has the advantages that: the utility model discloses a long-handle crucible tongs for glass experiments, which hinges the middle rear parts of a first rod piece and a second rod piece, can be more conveniently opened and closed, and is more beneficial to clamping a crucible; the tail ends of the first rod piece and the second rod piece are bent into a semicircular shape, so that the contact surface is enlarged, and the crucible can be clamped more firmly; the heat insulation board at the handle can effectively avoid the danger of scalding and burning; the auxiliary chain can assist the handle to enable an operator to exert force better, and the operator is prevented from falling off to clamp objects after gripping the handle for a long time and being sour; and the auxiliary chain can enable the first rod piece and the second rod piece to be close to each other towards the middle when being tensioned, so that the first rod piece and the second rod piece can firmly clamp the object to be clamped.

Drawings

Fig. 1 is a schematic structural view illustrating the connection between a first rod and a second rod according to the present invention;

fig. 2 is a schematic structural diagram of the first embodiment of the present invention;

fig. 3 is a schematic structural diagram of the second embodiment of the present invention.

In the figures, 1, a first bar; 2. a second bar member; 3. a heat insulation plate; 4. an auxiliary chain; 5. a grip; 6. a knob; 7. a first chain; 8. a second chain; 9. a third chain; 10. and (3) supporting the ring.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example one

A long-handle crucible clamp for glass experiments comprises a first rod piece 1, a second rod piece 2, a heat insulation plate 3 and an auxiliary chain 4. The first rod member 1 and the second rod member 2 are made of 2520 stainless steel material, and the front ends of the first rod member 1 and the second rod member 2 are bent in a circular arc shape, increasing the contact area with the crucible. The tail ends of the first rod piece 1 and the second rod piece 2 are bent to form a handle 5. Referring to fig. 1, the first rod member 1 and the second rod member 2 are hinged to each other, and the hinge point is located at the middle rear end of the first rod member 1 and the second rod member 2. The auxiliary chain 4 comprises a first chain 7, a second chain 8 and a third chain 9. The part of the first rod piece 1 and the part of the second rod piece 2 close to the front end are fixedly connected with a support ring 10, one end of a first chain 7 is connected with the first rod piece 1 through the support ring 10, one end of a second chain 8 is connected with the second rod piece 2 through the support ring 10, and the free ends of the first chain 7 and the second chain 8 are connected with a third chain 9.

When using crucible tongs, because the pin joint is close to handle 5, at the in-process of centre gripping crucible tongs, operator's hand produces fatigue easily to the risk that the crucible drops has been increased. And the setting of auxiliary chain 4 not only gives crucible tongs an auxiliary tension, and when first chain 7, second chain 8 were taut through third chain 9, first chain 7 and second chain 8 can drive first member 1 and second member 2 respectively and draw close each other moreover, improve the clamp force of first member 1 and second member 2.

The heat insulation plate 3 is fixedly connected to the first bar member 1 and the second bar member 2, respectively. Referring to fig. 2, the heat insulation plate 3 is crescent-shaped and is connected with a knob 6, and the knob 6 is screwed with the first rod member 1 and the second rod member 2. The relative position relation between the heat insulation plate 3 and the hand part can be adjusted by unscrewing the knob 6, so that the heat insulation plate 3 can be adjusted according to the direction of a heat source. The heat insulation plate 3 is attached with an asbestos layer, and the asbestos layer is attached to the side face, facing the tail end of the first rod piece 1/the tail end of the second rod piece 2, of the heat insulation plate 3.

Example two

Referring to fig. 3, the present embodiment is different from the first embodiment in the arrangement of the heat insulating board 3. In this embodiment, the heat insulation plate 3 is a semicircular plate and is fixedly connected to the first rod member 1 and the second rod member 2 by welding.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a long handle crucible tongs for glass experiments which characterized in that: comprises a first rod piece (1), a second rod piece (2), a heat insulation plate (3) and an auxiliary chain (4); the front ends of the first rod piece (1) and the second rod piece (2) are bent to form an arc shape, the tail ends of the first rod piece (1) and the second rod piece (2) are bent to form a handle (5), and the first rod piece (1) and the second rod piece (2) are hinged to each other; the heat insulation plate (3) is respectively connected with the first rod piece (1) and the second rod piece (2), and the heat insulation plate (3) is arranged adjacent to the handle (5); one end of the auxiliary chain (4) is connected with the first rod piece (1) and the second rod piece (2) respectively, and the auxiliary chain (4) and the handle (5) are arranged on two sides of a hinge point of the first rod piece (1) and the second rod piece (2) respectively.

2. The long-handled crucible tongs for glass experiments as set forth in claim 1, characterized in that: the first rod piece (1) and the second rod piece (2) are made of 2520 stainless steel.

3. The long-handled crucible tongs for glass experiments as set forth in claim 1, characterized in that: the heat insulation plate (3) is semicircular.

4. The long-handled crucible tongs for glass experiments as set forth in claim 1, characterized in that: the heat insulation plate (3) is crescent-shaped; the heat insulation plate (3) is connected with a knob (6), and the knob (6) is respectively screwed with the first rod piece (1) and the second rod piece (2).

5. The long-handled crucible tongs for glass experiments according to claim 3 or 4, characterized in that: the heat insulation plate (3) is attached with an asbestos layer, and the asbestos layer is attached to the side face, facing the front end of the first rod piece (1)/the front end of the second rod piece (2), of the heat insulation plate (3).

6. The long-handled crucible tongs for glass experiments as set forth in claim 1, characterized in that: the auxiliary chain (4) comprises a first chain (7), a second chain (8) and a third chain (9); the one end and the first member (1) of first chain (7) are connected, the one end and the second member (2) of second chain (8) are connected, the other end of first chain (7) and the other end of second chain (8) all are connected with the same end of third chain (9).