CN204868590U - Centre gripping size adjustable crucible tongs - Google Patents
Centre gripping size adjustable crucible tongs Download PDFInfo
- Publication number
- CN204868590U CN204868590U CN201520430935.3U CN201520430935U CN204868590U CN 204868590 U CN204868590 U CN 204868590U CN 201520430935 U CN201520430935 U CN 201520430935U CN 204868590 U CN204868590 U CN 204868590U
- Authority
- CN
- China
- Prior art keywords
- holding piece
- centre gripping
- chute
- crucible
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a centre gripping size adjustable crucible tongs, including a pair of pincers that the shape the is symmetrical body through the round pin hub connection, the direction of height that the clamping part of the pincers body was personally experienced sth. Part of the body along pincers in the inboard sets gradually the holding piece that the centre gripping size increases progressively from positive intermediate position to both sides, the centre gripping shape of holding piece cooperatees with the appearance of crucible, the holding piece of both sides sets up about the holding piece of positive intermediate position is symmetrical, holding piece symmetry setting each other on two pincers are personally experienced sth. Part of the body, the holding piece in the outside links firmly with the pincers body, the holding piece internal surface in the outside is opened at the symmetric position has the spout, be provided with on the inboard holding piece and follow the sliding pin that the spout slided and can fix at the spout both ends. The utility model discloses a centre gripping is carried out to the circular arc section, instability and the easy slippage phenomenon avoiding leading to the fact through pretightning force and frictional force centre gripping, and obtain required centre gripping size through the not unidimensional holding piece that slides, avoid the crucible waste that supporting production crucible tongs led to the fact one by one to different models.
Description
Technical field
The utility model belongs to experiment equipment technical field, particularly the adjustable crucible tongs of a kind of clamping dimension.
Background technology
Crucible tongs are the common tools produced and test, and because the crucible of the crucible after calcination or generation chemical reaction is in the condition of high temperature, need to be taken off with crucible tongs.At present, the method of clamping of crucible tongs is mainly divided into point cantact and linear contact lay, point cantact mainly clamps by binding clip place and crucible edge or certain some pretightning force located and frictional force, this method of clamping has generality and versatility, lower to the dimensional requirement of crucible tongs retained part, but be easy to cause crucible local pressure and be damaged, and stability in clamping process and security poor, easily there is the phenomenons such as slippage.For the method for clamping of linear contact lay, mainly by crucible tongs clamping part being made the arc-shaped of closing with crucible surface matching form, coordinated by machinery and clamp, add stability and the security of clamping, but this method of clamping does not have generality, higher to the dimensional requirement of crucible tongs clamping part, the crucible for different model needs to produce clamping radian crucible tongs identical with it, increases cost.
Utility model content
The purpose of this utility model is to provide a kind of unstability and insecurity that point cantact can be avoided to clamp cause, and the adjustable crucible tongs of the clamping dimension that can mate sizes crucible.
The technical solution realizing the utility model object is:
The adjustable crucible tongs of a kind of clamping dimension, comprise a pair caliper by the symmetrical shape of pinned connection, the clamping part of caliper to be disposed with along the short transverse of caliper the holding piece that clamping dimension increases progressively in inner side from position, middle to both sides, the clamping shape of holding piece matches with the profile of crucible, the holding piece of both sides is symmetrical arranged about the holding piece of position, middle, holding piece on two calipers is symmetrically set, outermost holding piece and caliper are connected, the holding piece inner surface in outside has chute in symmetric position, the holding piece of inner side is provided with the sliding pin also can fixed at chute two ends along slide.
The utility model compared with prior art, its remarkable advantage:
(1) the utility model adopts arc section to clamp, avoid clamping by pretightning force and frictional force the unstability and easy slip phenomenon that cause, and obtain required clamping dimension by the arc plate of slip different size, the waste of avoid the crucible for different model to form a complete production network one by one higher cost that crucible tongs bring and material.
(2) the utility model structure is simple, by simple for limited structure part by combining cleverly, meets test requirements document, convenient processing and manufacture and cost-effective while the reliability of this device that also increases.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the adjustable crucible tongs of the utility model clamping dimension.
Detailed description of the invention
Composition graphs 1:
The adjustable crucible tongs of a kind of clamping dimension of the utility model, comprise a pair caliper 1 by the symmetrical shape of pinned connection, the clamping part 2 of caliper 1 to be disposed with along the short transverse of caliper the holding piece 3 that clamping dimension increases progressively in inner side from position, middle to both sides, the clamping shape of holding piece 3 matches with the profile of crucible, the holding piece 3 of both sides is symmetrical arranged about the holding piece 3 of position, middle, holding piece 3 on two calipers 1 is symmetrically set, outermost holding piece 3 is connected with caliper 1, holding piece 3 inner surface in outside has chute 4 in symmetric position, the holding piece 4 of inner side is provided with and can slides and the sliding pin 5 can fixed at chute 4 two ends along chute 4.
There is fixing hole at the two ends of chute 4, and on sliding pin 5, cover has fixed cover, the diameter of fixed cover and the diametric fit of fixing hole and be greater than the width of chute 4.
Fixed cover is cone shaped elastic cover, and the minimum diameter of cone shaped elastic cover is less than the diameter of fixing hole and is greater than the width of chute 4, and the maximum gauge of cone shaped elastic cover is greater than the diameter of fixing hole.
Its operation principle is: according to crucible model, and selected holding piece 3 size, is all contracted to the holding piece 3 less than its size inside caliper 1 by chute 4, thus makes the holding piece 3 of institute's selected size be positioned at outermost.
Embodiment 1:
Composition graphs 1:
The adjustable crucible tongs of a kind of clamping dimension, comprise a pair caliper 1 by the symmetrical shape of pinned connection, the clamping part 2 of caliper 1 is provided with three groups of holding pieces 3 altogether in inner side along short transverse, outermost two measure-alike holding pieces 3 are one group, clamping dimension is maximum, a holding piece 3 of inner side is one group, clamping dimension is minimum, outermost and middle between two measure-alike holding pieces be one group, clamping dimension is less than outermost holding piece 3 and is greater than the holding piece 3 of inner side, holding piece 3 on two calipers 1 is symmetrically set, outermost holding piece 3 is connected with caliper 1, holding piece 3 inner surface in outside has chute 4 in symmetric position, the holding piece 4 of inner side is provided with the sliding pin 5 that can slide along chute 4, wherein, there is fixing hole at the two ends of chute 4, on sliding pin 5, cover has fixed cover, the diameter of fixed cover and the diametric fit of fixing hole and be greater than the width of chute 4.
When holding piece 3 is fixed by needs, the sliding pin 5 of holding piece 3 is slid in the fixing hole at chute 4 two ends, and the fixed cover on sliding pin 5 is slid in fixing hole, the diameter due to fixed cover is greater than the width of chute 4, and sliding pin 5 cannot slide in chute 4 again.
Embodiment 2:
Composition graphs 1:
The adjustable crucible tongs of a kind of clamping dimension, comprise a pair caliper 1 by the symmetrical shape of pinned connection, the clamping part 2 of caliper 1 is provided with three groups of holding pieces 3 altogether in inner side along short transverse, outermost two measure-alike holding pieces 3 are one group, clamping dimension is maximum, a holding piece 3 of inner side is one group, clamping dimension is minimum, outermost and middle between two measure-alike holding pieces be one group, clamping dimension is less than outermost holding piece 3 and is greater than the holding piece 3 of inner side, holding piece 3 on two calipers 1 is symmetrically set, outermost holding piece 3 is connected with caliper 1, holding piece 3 inner surface in outside has chute 4 in symmetric position, the holding piece 4 of inner side is provided with the sliding pin 5 that can slide along chute 4, wherein, fixed cover is cone shaped elastic cover, the minimum diameter of cone shaped elastic cover is less than the diameter of fixing hole and is greater than the width of chute 4, the maximum gauge of cone shaped elastic cover is greater than the diameter of fixing hole.
When holding piece 3 is fixed by needs, the sliding pin 5 of holding piece 3 is slid in the fixing hole at chute 4 two ends, and the cone shaped elastic cover on sliding pin 5 is slided and is pushed in fixing hole, because the minimum diameter of cone shaped elastic cover is less than fixing hole, therefore, with easily advancing in fixing hole, and the minimum diameter of cone shaped elastic cover is greater than the width of chute 4, and sliding pin 5 cannot slide in chute 4 again.
Claims (3)
1. the adjustable crucible tongs of clamping dimension, it is characterized in that: comprise a pair caliper by the symmetrical shape of pinned connection (1), the clamping part (2) of caliper (1) to be disposed with along the short transverse of caliper the holding piece (3) that clamping dimension increases progressively in inner side from position, middle to both sides, the clamping shape of holding piece (3) matches with the profile of crucible, the holding piece (3) of both sides is symmetrical arranged about the holding piece (3) of position, middle, holding piece (3) on two calipers (1) is symmetrically set, outermost holding piece (3) and caliper (1) are connected, holding piece (3) inner surface in outside has chute (4) in symmetric position, the holding piece (4) of inner side is provided with and can slides and the sliding pin (5) can fixed at chute (4) two ends along chute (4).
2. the adjustable crucible tongs of clamping dimension according to claim 1, it is characterized in that: there is fixing hole at the two ends of described chute (4), the upper cover of sliding pin (5) has fixed cover, the diameter of fixed cover and the diametric fit of fixing hole and be greater than the width of chute (4).
3. the adjustable crucible tongs of clamping dimension according to claim 2, it is characterized in that: described fixed cover is cone shaped elastic cover, the minimum diameter of cone shaped elastic cover is less than the diameter of fixing hole and is greater than the width of chute (4), and the maximum gauge of cone shaped elastic cover is greater than the diameter of fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520430935.3U CN204868590U (en) | 2015-06-19 | 2015-06-19 | Centre gripping size adjustable crucible tongs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520430935.3U CN204868590U (en) | 2015-06-19 | 2015-06-19 | Centre gripping size adjustable crucible tongs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204868590U true CN204868590U (en) | 2015-12-16 |
Family
ID=54813011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520430935.3U Withdrawn - After Issue CN204868590U (en) | 2015-06-19 | 2015-06-19 | Centre gripping size adjustable crucible tongs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204868590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889900A (en) * | 2015-06-19 | 2015-09-09 | 南京理工大学 | Clamping size adjustable crucible tongs |
-
2015
- 2015-06-19 CN CN201520430935.3U patent/CN204868590U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889900A (en) * | 2015-06-19 | 2015-09-09 | 南京理工大学 | Clamping size adjustable crucible tongs |
| CN104889900B (en) * | 2015-06-19 | 2016-09-21 | 南京理工大学 | The adjustable Crucible tongs of clamping dimension |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151216 Effective date of abandoning: 20160921 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |