Search

CN-224225701-U - Double-pump screw tightening structure with stable sealing performance

CN224225701UCN 224225701 UCN224225701 UCN 224225701UCN-224225701-U

Abstract

The utility model relates to the technical field of double-pump-core pressing pumps, in particular to a double-pump screw tightening structure with stable sealing performance, which comprises a screw cap, a first main body, a second main body, a sealing connecting piece, a first limiting ring and a second limiting ring, wherein the first limiting ring is arranged on the screw cap, the second limiting ring is arranged on the first main body and the second main body, the first main body and the second main body are fixedly connected to the sealing connecting piece, the first limiting ring is clamped above the second limiting ring, the sealing connecting piece is fixedly connected to the lower part of the second limiting ring, and the screw cap can rotate relative to the sealing connecting piece. According to the utility model, the sealing connecting piece is arranged, the first main body and the second main body are fixedly connected to the sealing connecting piece, the screw tooth cover is rotationally connected to the first main body and the second main body, the screw tooth cover can rotate relative to the sealing connecting piece, the sealing connecting piece is not interfered when the screw tooth cover is rotationally locked, the sealing performance is stable, the size of the screw tooth screwing matching structure is better controlled in the production injection molding process, and the sealing effect is more stable than that of the forced-compression buckle.

Inventors

  • LIN TIANDA
  • MO HENGJIN
  • Zeng Qikun
  • LUO TIANRONG

Assignees

  • 中山市联昌喷雾泵有限公司

Dates

Publication Date
20260512
Application Date
20250430

Claims (10)

  1. 1. The utility model provides a stable double pump screw thread structure of leakproofness which characterized in that: The novel screw cap comprises a screw cap (1), a first main body (21) and a second main body (22), wherein a first limiting ring (11) is arranged on the screw cap (1), and a second limiting ring (23) is arranged on the first main body (21) and the second main body (22); the sealing device further comprises a sealing connecting piece (3), wherein the first main body (21) and the second main body (22) are mounted on the sealing connecting piece (3) in a sealing way; A second limiting ring (23) or the sealing connecting piece (3) is in pressure connection with the first limiting ring (11); the screw cap (1) can rotate relative to the sealing connecting piece (3).
  2. 2. A dual pump screw tightening structure with stable sealing performance as claimed in claim 1, wherein: The second limiting ring (23) and the sealing connecting piece (3) are in pressure connection with the first limiting ring (11).
  3. 3. A dual pump screw tightening structure with stable sealing performance as claimed in claim 1, wherein: The first limiting ring (11), the second limiting ring (23) and the sealing connecting piece (3) are sequentially in compression joint.
  4. 4. A dual pump screw tightening structure with stable sealing performance as claimed in claim 1, wherein: The middle part of sealing connection spare (3) is provided with boss (31), the left and right sides of boss (31) is provided with concave position (32), and two concave positions (32) are mutually independent, be provided with mounting hole (33) on concave position (32), first main part (21) and second main part (22) wear to locate mounting hole (33), just second spacing ring (23) connect in corresponding concave position (32).
  5. 5. The stable-tightness double-pump screw tightening structure according to claim 4, wherein: The sealing connecting piece (3) is made of flexible materials, and the mounting hole (33) is in interference fit with the first main body (21) and the second main body (22).
  6. 6. The stable-tightness double-pump screw tightening structure according to claim 4, wherein: The centers of the two mounting holes (33) are positioned on the same diameter of the sealing connecting piece (3).
  7. 7. The stable-tightness double-pump screw tightening structure according to claim 4, wherein: the outer edge of the second limiting ring (23) is flush with the outer edge of the concave position (32).
  8. 8. A dual pump screw tightening structure with stable sealing as claimed in claim 3, wherein: The first main body (21) and the second main body (22) are further provided with longitudinal limiting parts (24), gaps are reserved between the longitudinal limiting parts (24) and the second limiting rings (23) and clamping grooves (25) are formed, and the first limiting rings (11) are clamped in the clamping grooves (25).
  9. 9. A dual pump screw tightening structure with stable sealing as claimed in claim 3, wherein: Still include bottle (4), bottle (4) upper end is provided with the external screw thread, the inboard of screw cap (1) is provided with internal screw thread (12), screw cap (1) spiro union is in on bottle (4), sealing connection spare (3) crimping is in between second spacing ring (23) and bottle (4).
  10. 10. A dual pump screw tightening structure with stable sealing performance as claimed in claim 1, wherein: The novel multifunctional electric water heater is characterized by further comprising a pressing head (5), wherein double pipelines are arranged in the pressing head (5) and are respectively communicated with the first main body (21) and the second main body (22).

Description

Double-pump screw tightening structure with stable sealing performance Technical Field The utility model relates to the technical field of double-pump core pressing pumps, in particular to a double-pump screw tightening structure with stable sealing performance. Background The pump is pressed to two pumps on the market generally is buckle formula and presses structure by force, and buckle formula presses the leakproofness of structure by force unstable, and is very strict to the management and control of product production size, and the size deviation can lead to virtual position or not pressing well for sealing stability has great leakage unusual risk in the production transportation. The utility model discloses a press replaceable multi-pump core cosmetic container as in the patent of publication number CN218527987U, this patent is through buckle formula strong pressure structure with two pump core sealing connection on the bottle, and buckle formula strong pressure structure's leakproofness is unstable, and is higher to the management and control of product production size. Disclosure of utility model In order to solve the technical problems, the utility model aims to provide the double-pump screw tightening structure with stable sealing performance, and the double-pump screw tightening structure is stable in sealing performance and better in size control. The technical scheme includes that the double-pump screw tightening structure with stable sealing performance comprises a screw cap, a first main body and a second main body, wherein the screw cap is provided with a first limiting ring, the first main body and the second main body are provided with a second limiting ring, the double-pump screw tightening structure further comprises a sealing connecting piece, the first main body and the second main body are mounted on the sealing connecting piece in a sealing mode, the second limiting ring or the sealing connecting piece is in pressure connection with the first limiting ring, and the screw cap can rotate relative to the sealing connecting piece. As a further improvement of the technical scheme, the second limiting ring and the sealing connecting piece are in pressure connection with the first limiting ring. As a further improvement of the technical scheme, the first limiting ring, the second limiting ring and the sealing connecting piece are sequentially in compression joint. As a further improvement of the technical scheme, the middle part of the sealing connecting piece is provided with a boss, the left side and the right side of the boss are provided with concave positions, the two concave positions are mutually independent, the concave positions are provided with mounting holes, the first main body and the second main body penetrate through the mounting holes, and the second limiting rings are connected in the corresponding concave positions. As a further improvement of the technical scheme, the sealing connecting piece is made of flexible materials, and the mounting hole is in interference fit with the first main body and the second main body. As a further improvement of the technical scheme, the circle centers of the two mounting holes are positioned on the same diameter of the sealing connecting piece. As a further improvement of the above technical solution, the outer edge of the second limiting ring is flush with the outer edge of the concave position. As a further improvement of the technical scheme, the first main body and the second main body are further provided with longitudinal limiting parts, gaps are reserved between the longitudinal limiting parts and the second limiting rings, clamping grooves are formed, and two sections of opposite arc edges of the first limiting rings are clamped in the clamping grooves. As a further improvement of the technical scheme, the bottle further comprises a bottle body, an external thread is arranged at the upper end of the bottle body, an internal thread is arranged on the inner side of the screw cap, the screw cap is screwed on the bottle body, and the sealing connecting piece is pressed between the second limiting ring and the bottle body. As a further improvement of the technical scheme, the novel hydraulic pressure control device further comprises a pressing head, wherein double pipelines are arranged in the pressing head and are respectively communicated with the first main body and the second main body. The sealing connecting piece is arranged, the first main body and the second main body are fixedly connected to the sealing connecting piece, the screw tooth cover is rotationally connected to the first main body and the second main body, the screw tooth cover can rotate relative to the sealing connecting piece, the sealing connecting piece is not interfered when the screw tooth cover is rotationally locked, the sealing performance is stable, the size of the screw tooth screwing matching structure is better controlled in the production injection mo