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CN-224207795-U - Planetary stirrer

CN224207795UCN 224207795 UCN224207795 UCN 224207795UCN-224207795-U

Abstract

The utility model relates to a planetary stirrer, which belongs to the technical field of laboratory equipment and comprises a stirrer body, a stirring rod arranged in the stirrer body, a stirring paddle detachably arranged at the bottom of the stirring rod and a fixing mechanism arranged between the stirring rod and the stirring paddle, wherein a square rod which is matched and inserted at the bottom of the stirring rod is fixedly arranged at the top of the stirring paddle, and a fixing hole is formed in the square rod.

Inventors

  • LIU YANG
  • JIANG YI

Assignees

  • 上海运锐机电设备工程技术有限公司

Dates

Publication Date
20260508
Application Date
20250603

Claims (6)

  1. 1. The utility model provides a planetary mixer, includes stirring organism (1), installs puddler (11) in stirring organism (1), detachably installs stirring rake (2) in puddler (11) bottom to and establish the fixed establishment between puddler (11) and stirring rake (2), its characterized in that: A square rod (21) which is matched and inserted at the bottom of the stirring rod (11) is fixedly arranged at the top of the stirring paddle (2), and a fixing hole (22) is formed in the square rod (21); The fixing mechanism comprises a tension spring (3) fixedly arranged on the outer wall of the bottom end of the stirring rod (11), a connecting plate (31) fixedly arranged at one end of the tension spring (3) and a threaded rod (32) arranged in the connecting plate (31) in a threaded manner, one end of the threaded rod (32) penetrates through the stirring rod (11) and is matched with the stirring rod to be inserted into the fixing hole (22), and an anti-loosening mechanism used for preventing the threaded rod (32) from loosening is arranged on the outer side of the stirring rod (11).
  2. 2. The planetary mixer as claimed in claim 1, wherein square holes (12) are formed in the bottom end of the mixing rod (11), and the square rods (21) are inserted into the square holes (12) of the mixing rod (11) in a matched mode.
  3. 3. The planetary mixer according to claim 2, wherein the anti-loosening mechanism comprises a limiting cylinder (34) fixedly arranged on the outer wall of the stirring rod (11) and a ball valve (35) arranged in a through hole formed in the top of the stirring rod (11), the connecting plate (31) is slidably arranged on the inner side of the adaptive limiting cylinder (34), and the tension spring (3) is positioned in the limiting cylinder (34).
  4. 4. A planetary mixer according to claim 3, wherein a holding rod (33) positioned outside the limiting cylinder (34) is fixedly arranged on the outer wall of one end of the threaded rod (32), and a balancing weight (13) is fixedly arranged at the bottom of one end of the stirring rod (11) deviating from the limiting cylinder (34).
  5. 5. The planetary mixer as claimed in claim 3, wherein the stirring rod (11) is internally provided with an air guide channel (36), and two ends of the air guide channel (36) are respectively communicated with the top end of the square hole (12) and the inside of the limit cylinder (34).
  6. 6. The planetary mixer according to claim 5, wherein sealing rings (37) are fixedly arranged at the top ends of the square rods (21) and the outer wall of the connecting plate (31) respectively.

Description

Planetary stirrer Technical Field The utility model belongs to the technical field of laboratory equipment, and particularly relates to a planetary stirrer. Background The planetary stirrer is a mixing device widely used in laboratory environment, which adopts the planetary motion principle to carry out efficient mixing and is suitable for the technological processes of mixing, dispersing, dissolving, homogenizing and the like of various paste, liquid, powder and the like. The patent of publication number CN221015570U discloses a double-planetary mixer, which belongs to the technical field of laboratory equipment and comprises a mixer body, wherein a stirring rod is coaxially and fixedly connected to one end face of a driving rod of the mixer body, a mounting hole is formed in one end face of the stirring rod, a stirring shaft is inserted in the mounting hole, stirring blades are fixedly connected to the outer wall of the stirring shaft, and a locking mechanism for locking the stirring shaft on the inner wall of the mounting hole is arranged on the outer wall of the lower end of the stirring rod. Although the stirring paddle composed of the stirring shaft and the stirring blade can be quickly replaced through the prior art, the stirring paddle after replacement is fixed through the ball extrusion mode, the contact area between the ball serving as the fixing piece and the stirring paddle after replacement is small, the ball is easy to accelerate abrasion due to overlarge stress after long-time use, and the ball is located in the stirring rod, so that the ball is inconvenient to replace later, the difficulty of later maintenance is increased, and the problem to be improved exists. Disclosure of utility model The present utility model aims to solve the above problems by providing a planetary mixer. The utility model realizes the above purpose through the following technical scheme: The planetary stirrer comprises a stirrer body, a stirring rod arranged in the stirrer body, a stirring paddle detachably arranged at the bottom of the stirring rod, and a fixing mechanism arranged between the stirring rod and the stirring paddle, wherein a square rod matched and inserted at the bottom of the stirring rod is fixedly arranged at the top of the stirring paddle, and a fixing hole is formed in the square rod; The fixing mechanism comprises a tension spring fixedly arranged on the outer wall of the bottom end of the stirring rod, a connecting plate fixedly arranged at one end of the tension spring and a threaded rod screwed in the connecting plate, one end of the threaded rod penetrates through the stirring rod and is matched with the stirring rod to be inserted in the fixing hole, and an anti-loosening mechanism for preventing the threaded rod from loosening is arranged on the outer side of the stirring rod. As a further optimization scheme of the utility model, a square hole is formed in the bottom end of the stirring rod, and the square rod is matched and inserted into the square hole of the stirring rod. As a further optimization scheme of the utility model, the anti-loosening mechanism comprises a limiting cylinder fixedly arranged on the outer wall of the stirring rod and a ball valve arranged in a through hole formed in the top of the stirring rod, the connecting plate is slidably arranged on the inner side of the adaptive limiting cylinder, and the tension spring is positioned in the limiting cylinder. As a further optimization scheme of the utility model, the outer wall of one end of the threaded rod is fixedly provided with a holding rod positioned outside the limiting cylinder, and the bottom of one end of the stirring rod, which is away from the limiting cylinder, is fixedly provided with a balancing weight. As a further optimization scheme of the utility model, the stirring rod is internally provided with the air guide channel, and two ends of the air guide channel are respectively communicated with the top end of the square hole and the inside of the limiting cylinder. As a further optimization scheme of the utility model, sealing rings are respectively and fixedly arranged at the top end of the square rod and the outer wall of the connecting plate. The utility model has the beneficial effects that: 1. Through inserting the puddler with the square pole, can carry out preliminary connection to puddler and stirring rake, can insert the fixed orifices of square pole with the threaded rod fast through the pulling force of extension spring in to install and fix between puddler and the stirring rake, and area of contact is great between threaded rod and the square pole as the mounting, thereby make the threaded rod and can bear bigger pressure and not fragile, and the threaded rod can follow the connecting plate internal unscrewing, conveniently change the threaded rod, reduce the degree of difficulty of later maintenance. 2. Through spacing section of thick bamboo to the connecting plate, the sealed of cooperati