CN221245249U - Straight pipe grinding connection structure - Google Patents
Straight pipe grinding connection structure Download PDFInfo
- Publication number
- CN221245249U CN221245249U CN202322603772.1U CN202322603772U CN221245249U CN 221245249 U CN221245249 U CN 221245249U CN 202322603772 U CN202322603772 U CN 202322603772U CN 221245249 U CN221245249 U CN 221245249U
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- grinding
- connecting cover
- hole
- port
- outer grinding
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- 239000011521 glass Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002390 rotary evaporation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The utility model discloses a straight pipe grinding connection structure, which comprises an inner grinding port, an outer grinding port and a connection cover, wherein the inner grinding port is in a straight pipe shape, the connection end of the outer grinding port can be plugged into the inner grinding port, the connection cover is provided with a connection cover through hole, the outer grinding port penetrates through the connection cover through hole, and the outer grinding port is limited at the connection cover through hole of the connection cover in the direction vertical to the connection cover; the connecting cover is connected with the inner grinding opening through threads. According to the straight pipe grinding connection structure, the glass containers with the inner grinding holes in the straight pipe shape can be connected more tightly when the grinding connection is carried out, and the stability and the safety of the connection are improved.
Description
Technical Field
The utility model belongs to the technical field of glass instruments, and particularly relates to a straight pipe grinding connection structure.
Background
Glass grind containers (e.g., test tubes, conical flasks, retort flasks, grind bottles, grind connection joints, etc.) are laboratory glass containers that are common in the laboratory, and the inner wall of the inner grind of such glass containers and the outer wall of the outer grind (e.g., outer grind connection joint, grind plug, etc.) connection end that is connected to the inner grind are designed as grind surfaces, the main purpose of which is to ensure the tightness of the connection between the inner grind and the outer grind when connected. However, existing designs of this type still suffer from drawbacks. Under special application environment, such as condensation, rotary evaporation and other operations, the pressure inside and outside the container changes, and the inner grinding mouth is easily separated from the outer grinding mouth. Therefore, the conventional method is to set a clamp or a clip at the joint for fixing, but for the condition of relatively high sealing requirement, the clamp or the clip can only prevent the separation of the inner grinding mouth and the outer grinding mouth, but cannot stop the condition of liquid leakage/air leakage.
In addition, because the inner grinding mouth is straight-tube-shaped, the outer wall of the inner grinding mouth is smooth, the outer wall of the upper part of the connecting end of the outer grinding mouth is also a smooth surface, when the inner grinding mouth is connected with the outer grinding mouth, the clamping position of the clamping hoop is the outer wall of the inner grinding mouth and the outer wall of the upper part of the connecting end of the outer grinding mouth, the clamping hoop always leaves a gap for the clamping connection of the inner grinding mouth and the outer grinding mouth, the clamping hoop is easy to slide up and down, or the clamping hoop is easy to fall off, so that ineffective clamping connection is caused; the clamp is adopted, so that slipping is easily caused when the clamp clamps the inner grinding outer wall and the outer wall on the upper part of the outer grinding connecting end, clamping stress of the clamp to the inner grinding outer wall and the outer wall on the upper part of the outer grinding connecting end is uneven, and potential safety hazards of fracture of the connecting part in the processes of heating, condensing and the like are easily caused.
Disclosure of utility model
The utility model aims to provide a straight pipe grinding connection structure, which aims to enable a glass container with a straight pipe-shaped inner grinding port to be connected more tightly when the grinding connection is carried out, and improve the stability and safety of the connection.
In order to achieve the above purpose, the technical scheme of the utility model is to design a straight pipe grinding connection structure, which comprises an inner grinding port, an outer grinding port and a connection cover, wherein the inner grinding port is in a straight pipe shape, the connection end of the outer grinding port can be plugged into the inner grinding port, the connection cover is provided with a connection cover through hole, the outer grinding port passes through the connection cover through hole, and the outer grinding port is limited at the connection cover through hole of the connection cover at least in the direction vertical to the connection cover; the connecting cover is connected with the inner grinding opening through threads.
Further, the outer wall of the outer grinding mouth is provided with an upper outer grinding mouth limit and a lower outer grinding mouth limit, the two outer grinding mouth limits are respectively located at two sides of a through hole of the connecting cover, and the outer grinding mouth is limited on the connecting cover through the two outer grinding mouth limits.
Preferably, the cross-sectional shapes of the two outer grinding openings are matched with the hole shapes of the through holes of the connecting cover, and the two outer grinding openings are non-circular, including regular polygons or irregular geometric figures.
Preferably, the outer edges of the two outer grinding edge limit positions are provided with a plurality of grinding missing surfaces, and the hole wall of the connecting cover through hole is provided with an edge grinding surface which is matched with the outer grinding edge grinding missing surfaces (namely, the outer grinding edge limit cross section and the connecting cover through hole are in a circular missing shape).
Further, the cross-sectional shape of the two outer grinding openings is not matched with the hole shape of the through hole of the connecting cover, and the outer limiting diameter of the outer grinding openings is slightly larger than the diameter of the through hole of the connecting cover (in this case, the outer grinding openings cannot be taken down from the connecting cover).
The utility model has the advantages and beneficial effects that:
1) The connection between the outer grinding mouth and the inner grinding mouth is further limited through the design of the connecting cover, so that the inner grinding mouth and the outer grinding mouth are prevented from being separated in the use process, and the tightness is improved to a certain extent.
2) When the inner grinding mouth is connected with the outer grinding mouth, in order to improve the tightness, the outer wall of the connecting end of the outer grinding mouth is often coated with vacuum grease, and in some cases, the vacuum grease and the reagent in the container can react, or the inner grinding mouth is in a long-time negative pressure state, so that the outer grinding mouth is difficult to be taken off from the inner grinding mouth; by adopting the design of the utility model, the outer grinding mouth can be pulled out from the inner grinding mouth in an auxiliary way by screwing the connecting cover (namely, the connecting cover generates upward jacking stress on the limit of the outer grinding mouth above the connecting cover in the process of screwing the connecting cover outwards, thereby assisting the pulling out of the outer grinding mouth).
3) Disassembly can be achieved between the outer grind and the connection cover in embodiment 1, and when either the outer grind or the connection cover is damaged, the outer grind or the connection cover can be replaced individually.
Drawings
FIG. 1 is a schematic diagram of the combination of the present utility model.
Fig. 2 is an exploded view of the present utility model.
FIG. 3 is a schematic plan view of the assembly of the present utility model.
Fig. 4 is a schematic view of section A-A.
Fig. 5 is an exploded plan view of the present utility model.
Fig. 6 is a schematic view of section B-B.
Wherein, the outer grinding mouth 1, the outer grinding mouth limit 1-1, the grinding lack surface 1-1-1, the connecting cover 2, the connecting cover through hole 2-1, the edge grinding surface 2-1-1 and the inner grinding mouth 3.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
Example 1:
As shown in fig. 1 to 6, a straight pipe grinding connection structure comprises an inner grinding port 3, an outer grinding port 1 and a connection cover 2; the inner grinding mouth 3 is in a straight tube shape, the connecting end of the outer grinding mouth 1 can be tightly plugged into the inner grinding mouth 3, and the outer wall of the connecting end of the outer grinding mouth 1 and the inner wall of the inner grinding mouth 3 are grinding surfaces.
The outer wall of the inner grinding port 3 is provided with an external thread, the inner wall of the connecting cover 2 is provided with an internal thread, and the connecting cover 2 can be in threaded connection with the inner grinding port 3.
The connecting cover 2 is provided with a connecting cover through hole 2-1; the outer wall of the upper part of the connecting end of the outer grinding port 1 is provided with an upper outer grinding port limit 1-1 and a lower outer grinding port limit 1-1, the outer grinding port 1 extends into a connecting cover through hole 2-1 of the connecting cover 2, and the two outer grinding port limits 1-1 are respectively positioned at two sides of the connecting cover through hole 2-1.
The cross section shape of the two outer grinding limit positions 1-1 is the same as the hole shape of the connecting cover through hole 2-1, a plurality of grinding missing surfaces 1-1-1 are arranged on the outer edges of the two outer grinding limit positions 1-1, and a plurality of edge grinding surfaces 2-1-1 are correspondingly arranged on the hole wall of the connecting cover through hole 2-1.
In the process that the outer grinding port 1 stretches into the connecting cover through hole 2-1 of the connecting cover 2, firstly, the outer grinding port limit 1-1 positioned below is anastomosed to pass through the connecting cover through hole 2-1, then the outer grinding port 1 is rotated clockwise or anticlockwise just before the outer grinding port limit 1-1 positioned above passes through the connecting cover through hole 2-1, so that the grinding missing surface 1-1-1 of the outer grinding port limit 1-1 is misplaced with the edge grinding surface 2-1-1 of the connecting cover through hole 2-1, and the outer grinding port 1 is ensured not to deviate from the connecting cover 2-1.
In the process, the outer grinding port is limited 1-1 and the connecting cover through hole 2-1 are staggered, and the purpose of pressure test can be achieved while the container is sealed by matching with the threaded locking of the inner grinding port 3 and the outer grinding port 1.
Secondly, the cross section shape of the two outer grinding port limit positions 1-1 is the same as the hole shape of the connecting cover through hole 2-1, and after the connecting cover 2 is unscrewed, the connecting cover 2 is continuously rotated, so that the connecting cover through hole 2-1 is matched with the upper outer grinding port limit position 1-1, and the connecting cover 2 can be directly pulled out along the outer grinding port direction.
Example 2:
A straight pipe grinding connection structure comprises an inner grinding port 3, an outer grinding port 1 and a connection cover 2; the inner grinding mouth 3 is in a straight tube shape, the connecting end of the outer grinding mouth 1 can be tightly plugged into the inner grinding mouth 3, and the outer wall of the connecting end of the outer grinding mouth 1 and the inner wall of the inner grinding mouth 3 are grinding surfaces.
The outer wall of the inner grinding port 3 is provided with an external thread, the inner wall of the connecting cover 2 is provided with an internal thread, and the connecting cover 2 can be in threaded connection with the inner grinding port 3.
The connecting cover 2 is provided with a connecting cover through hole 2-1; the outer wall of the upper part of the connecting end of the outer grinding port 1 is provided with an upper outer grinding port limit 1-1 and a lower outer grinding port limit 1-1, the outer grinding port 1 extends into a connecting cover through hole 2-1 of the connecting cover 2, and the two outer grinding port limits 1-1 are respectively positioned at two sides of the connecting cover through hole 2-1.
Unlike example 1, the two outer grind edges limit 1-1 have an outer diameter slightly larger than the diameter of the through hole 2-1 of the connecting cover to ensure that the outer grind edges 1 cannot come out of the connecting cover 2.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (5)
1. The utility model provides a straight tube grinds mouthful connection structure, includes interior grinds mouthful and outer grinds mouthful, and interior grinds mouthful is straight tubular, and outer grinds mouthful connection end can be plugged into in grinding mouthful, its characterized in that: the connecting cover is also included; the connecting cover is provided with a connecting cover through hole, the outer grinding opening penetrates through the connecting cover through hole, and the outer grinding opening is limited at the connecting cover through hole of the connecting cover in the direction perpendicular to the connecting cover; the connecting cover is connected with the inner grinding port through threads.
2. A straight tube mill connection according to claim 1, wherein: the outer wall of the upper part of the outer grinding port connecting end is provided with an upper outer grinding port limit and a lower outer grinding port limit, the two outer grinding port limits are respectively located at two sides of a connecting cover through hole of the connecting cover, and the outer grinding port is limited on the connecting cover through the two outer grinding port limits.
3. A straight tube mill connection according to claim 2, wherein: the cross section shapes of the two limiting positions of the outer grinding openings are matched with the hole shape of the through hole of the connecting cover, and the two limiting positions are non-circular.
4. A straight tube mill finish connection according to claim 3, wherein: the two outer edges of the outer grinding edge limit are provided with a plurality of grinding missing surfaces, and the hole wall of the through hole of the connecting cover is provided with an edge grinding surface which is matched with the outer grinding edge grinding missing surfaces.
5. A straight tube mill connection according to claim 2, wherein: the cross section shapes of the two positions of the outer grinding opening limit are not matched with the hole shape of the through hole of the connecting cover, and the outer grinding opening limit outer diameter is slightly larger than the diameter of the through hole of the connecting cover.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221245249U true CN221245249U (en) | 2024-07-02 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |