Assembly structure of filter cup and filter head of solvent filter

Abstract

The utility model belongs to the technical field of laboratory appliances, and relates to an assembly structure of a filter cup and a filter head of a solvent filter, which comprises the filter cup and the filter head and is characterized by further comprising a threaded connection sleeve and an extrusion rubber ring, the threaded connection sleeve is a ring body with an upper opening and a lower opening, and internal threads are arranged on the inner wall of the upper half portion of the ring body. A clamping groove is formed in the inner wall of the lower part of the ring body; external threads matched with the internal threads on the threaded connection sleeve are arranged on the outer wall of the bottom of the filter cup; the filter head is sleeved with the threaded connection sleeve, an extrusion rubber ring is arranged on the lower portion of the filter head and limited in the clamping groove, and the upper end of the threaded connection sleeve is in threaded connection with the filter cup. The assembly structure for the filter cup and the filter head of the solvent filter is scientific and reasonable in design, has the advantages of being convenient to assemble, reliable in connection, capable of improving experiment efficiency and easy to achieve, and has high innovativeness.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of laboratory supplies, and relates to a solvent filter, in particular to an assembling structure of a filter cup and a filter head of a solvent filter. BACKGROUND

[0002] The solvent filter is a common laboratory supply in a chemical laboratory, which is usually composed of a solvent filter bottle device and a vacuum pump. The solvent filter bottle device comprises a triangular liquid collecting bottle (1000ml or 2000ml), a sand core filter head, a filter cup (250ml or 500) and an aluminum alloy fixing clamp. The sand core filter head is connected with the filter cup through the aluminum alloy fixing clamp, and the sand core filter head is placed on the triangular liquid collecting bottle.

[0003] For example, the utility model patent with publication number CN207871669U discloses a solvent filtering device, and the filter cup and the filter head in the device are clamped by an aluminum alloy clamp.

[0004] However, the connecting mode has the following disadvantages: 1. It is not easy to assemble. The filter cup and the filter head need to be aligned first, then the clamp is opened, and then clamping is performed. The operation is inconvenient. 2. The aluminum alloy clamp needs to be configured separately. If it is not stored well, the clamp will be lost, which will affect the filtration operation. SUMMARY

[0005] The utility model discloses a purpose of overcoming the deficiencies of the prior art, providing a kind of convenient assembly, connection reliable, improve experimental efficiency, easily realized assembling structure of filter cup and filter head of solvent filter.

[0006] The utility model discloses a technical problem is solved is implemented by using following technical scheme:

[0007] An assembling structure of filter cup and filter head of solvent filter, including filter cup and filter head, characterized in that: still including threaded connection sleeve and extruded rubber ring, the threaded connection sleeve is a circle body with upper and lower openings, and internal thread is arranged on the upper half portion inner wall of circle body, and clamping groove is arranged on the lower portion inner wall of circle body;

[0008] External thread matched with internal thread of threaded connection sleeve is arranged on the bottom outer wall of filter cup;

[0009] The filter head is sleeved into the inside of threaded connection sleeve, and extruded rubber ring is arranged on the lower portion of filter head, the extruded rubber ring is limited in clamping groove, and the upper end of threaded connection sleeve is connected with filter cup by screwing.

[0010] Moreover, taking film notch with opening upward is arranged on the sleeve wall of threaded connection sleeve.

[0011] Moreover, anti-skid line is arranged on the outer wall of threaded connection sleeve.

[0012] The solvent filter filter cup and filter head assembly structure has the advantages of convenient assembly, reliable connection, improved experimental efficiency, and easy implementation, and is a solvent filter filter cup and filter head assembly structure with high innovation.

[0013] 1. The solvent filter filter cup and filter head assembly structure, when leaving the factory, the assembly of the filter head and the threaded connecting sleeve is completed, and when used, the threaded connection between the filter cup and the filter head can be directly performed, which is simple and convenient, and greatly improves the assembly efficiency of the filter cup and the filter head.

[0014] 2. The solvent filter filter cup and filter head assembly structure, through the setting of the film taking gap, the filter membrane is conveniently taken out, and the smooth progress of the experiment is ensured.

[0015] 3. The solvent filter filter cup and filter head assembly structure, through the setting of the anti-skid pattern on the threaded connecting sleeve, the threaded connecting sleeve is conveniently screwed, and the assembly of the filter cup and the filter head is more efficient.

[0016] 4. The solvent filter filter cup and filter head assembly structure is designed scientifically and reasonably, has the advantages of convenient assembly, reliable connection, improved experimental efficiency, and easy implementation, and is a solvent filter filter cup and filter head assembly structure with high innovation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional view of the utility model;

[0018] Figure 2 It is an enlarged view of A part of Figure 1

[0019] Figure 3 It is a structural schematic view of the threaded connecting sleeve of the utility model;

[0020] Figure 4 It is a sectional view of the threaded connecting sleeve of the utility model.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1- filter cup, 2- filter head, 3- threaded connecting sleeve, 4- extruded rubber ring, 5- film taking gap, 6- internal thread, 7- clamping groove. DETAILED DESCRIPTION

[0023] The embodiments of the utility model will be further described in combination with the drawings:

[0024] A solvent filter filter cup and filter head assembly structure, comprising a filter cup 1 and a filter head 2, the filter cup and the filter head are arranged in a butt joint, and an eave is arranged outwardly and horizontally at the butt joint end of the filter cup and the filter head, and the utility model has the advantages of convenient assembly, reliable connection, improved experimental efficiency, and easy implementation, and is a solvent filter filter cup and filter head assembly structure with high innovation.

[0025] ​The outer wall of the outward horizontally flanged eave of the filter cup is provided with external threads matched with internal threads of the threaded connecting sleeve;

[0026] The outward horizontally flanged eave of the filter head is sleeved into the threaded connecting sleeve, and an extruded rubber ring is arranged at the lower part of the outward horizontally flanged eave of the filter head and is limited in the clamping groove, and the upper end of the threaded connecting sleeve is threadedly connected with the filter cup.

[0027] When the filter cup and the filter head are assembled, the filter membrane is arranged on the filter head, and in order to facilitate the taking of the filter membrane, the threaded connecting sleeve is provided with a film taking notch 5 with an upward opening on the sleeve wall, and when the film is taken, the filter membrane can be smoothly clamped out through the film taking notch by using a clamp, so that the problem of affecting experimental analysis due to the filter membrane being inclined to shake off the filter residue thereon is avoided.

[0028] In order to facilitate the screwing of the threaded connecting sleeve, the outer wall of the threaded connecting sleeve is provided with anti-skid lines.

[0029] In the assembly, the extruded rubber ring is first sleeved on the filter head, and then one end of the outward horizontally flanged eave of the filter head is sleeved into the bottom of the threaded connecting sleeve, the extruded rubber ring is inserted into the clamping groove by using a tool such as a straight awl, the filter head is limited by the extruded rubber ring, and thus the assembly of the filter head on the threaded connecting sleeve is completed; in the specific experimental use, the filter membrane is arranged on the filter head, and then the filter cup is screwed into the threaded connecting sleeve to complete the connection of the filter cup and the filter head, which is simple and convenient and greatly improves the connection efficiency of the filter cup and the filter head.

[0030] Although the embodiments and drawings of the utility model are disclosed for the purpose of illustration, those skilled in the art can understand that various substitutions, changes and modifications are possible without departing from the spirit and scope of the utility model and the appended claims, therefore, the scope of the utility model is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An assembly of a solvent filter bowl and a filter head, comprising a filter bowl and a filter head, characterized in that: It also comprises a threaded connecting sleeve and an extruded rubber ring, the threaded connecting sleeve is a ring body with upper and lower openings, an inner thread is arranged on the inner wall of the upper half of the ring body, and a clamping groove is arranged on the lower inner wall of the ring body; An outer thread which is matched with the inner thread of the threaded connecting sleeve is arranged on the outer wall of the bottom of the filter cup; The filter head is sleeved into the inner part of the threaded connecting sleeve, an extruded rubber ring is arranged on the lower part of the filter head, the extruded rubber ring is limited in the clamping groove, and the upper end of the threaded connecting sleeve is threadedly connected with the filter cup.

2. The assembly of a filter bowl and a filter head of a solvent filter according to claim 1, characterized in that: An opening-upwards membrane taking notch is arranged on the sleeve wall of the threaded connecting sleeve.

3. The assembly of a filter bowl and a filter head of a solvent filter according to claim 1, characterized in that: Anti-skid lines are arranged on the outer wall of the threaded connecting sleeve.

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