Assembly structure of gear and tightening spring and eggbeater motor adopting assembly structure
By designing the matching structure between the limit ring and the bent spring on the gears of the egg beater motor, the problem of the displacement of the tightening spring is solved, ensuring its stability and functional integrity during use.
Patent Information
- Application Number
- CN202421802195.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In existing egg beater motors, the tightening spring is easily displaced during use, resulting in changes in the insertion and pulling force of the egg beat fork. In severe cases, the egg beat fork cannot fall off freely, and even the tightening spring is brought out and lost function.
An assembly structure of gears and tightening springs is designed. By setting a positioning gap on the limit ring to cooperate with one end bent part of the tightening spring, the limit of the tightening spring is achieved and its displacement is avoided.
It effectively avoids displacement of the tightening spring during use, ensuring that the tightening spring will not be brought out when taken off, and keeps its function intact.
Smart Images
Figure CN222839522U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an assembly structure of a tightening spring, and more specifically, to an assembly structure of a gear and a tightening spring and an egg beater motor adopting the assembly structure. Background Art
[0002] The tightening spring used in the existing egg beater motor will be displaced when the egg beater fork is inserted and pulled out during use or when the motor is running. When the spring opening is located at the gear fork insertion position, the pull-out force and insertion force of the egg beater fork will change. In severe cases, the egg beater fork cannot fall off freely when it is withdrawn, and it is returned because it does not meet customer requirements. In more serious cases, the spring will be pulled out when the fork is withdrawn, causing it to lose its function. Utility Model Content
[0003] The utility model aims to address the deficiencies of the prior art and to provide an assembly structure of a gear and a tightening spring with a simple structure and in which a tightening spring will not be displaced, and an egg beater motor using the assembly structure.
[0004] The technical solution of the utility model is achieved as follows: an assembly structure of a gear and a tightening spring, comprising a gear, an egg fork connector integrally formed at the power output end of the gear, a connecting hole for inserting the egg fork formed axially at the free end of the egg fork connector, a limiting ring integrally formed at the free end of the egg fork connector, the limiting ring cooperates with the egg fork connector to form a tightening spring installation groove, a tightening spring is arranged in the tightening spring installation groove, a plug-in notch that cooperates with the limiting ear on the external egg fork is arranged on the limiting ring and the egg fork connector, a positioning notch that conducts the tightening spring installation groove is arranged on the limiting ring, and a bending portion that cooperates with the positioning notch is formed at one end of the tightening spring.
[0005] In the above-mentioned assembly structure of a gear and a tightening spring, the positioning notch is located in the middle of the limiting ring between the two plug-in notches.
[0006] In the above-mentioned assembly structure of a gear and a tightening spring, the positioning notch is located outside the limiting ring, and the bent portion is vertically arranged upward and clamped in the positioning notch.
[0007] In the above-mentioned assembly structure of a gear and a tightening spring, the number of turns of the tightening spring is 1.2-1.4 turns.
[0008] In the above-mentioned assembly structure of a gear and a tightening spring, the egg fork connecting piece includes a columnar portion integrally formed with the gear, and the connecting hole is located at the center of the columnar portion.
[0009] The limiting ring is integrally formed at the free end of the columnar portion, and a plurality of annular reinforcing ribs are axially spaced on the columnar portion at the lower side of the limiting ring. The annular reinforcing rib at the uppermost end cooperates with the limiting ring to form a tightening spring installation groove.
[0010] After the utility model adopts the above structure, the tightening spring is limited by cooperating with the positioning notch arranged on the limiting ring and the bent portion at one end of the tightening spring, thereby preventing the tightening spring from being displaced during use and preventing the tightening spring from being pulled out of the tightening spring installation groove by the egg fork limiting ear and falling off when the egg fork is removed.
[0011] An egg beater motor with the above-mentioned assembly structure includes a motor body and a mounting bracket arranged at the power output end of the motor body, a worm is fixed on the power output shaft of the motor body, and a gear meshing with the worm is rotatably connected on the mounting bracket.
[0012] After the utility model adopts the above structure, when the egg fork is inserted into the gear and driven by the worm to rotate for beating eggs, the tightening spring on the gear will not be displaced under the limiting effect. When the egg fork is taken off, it can be ensured that the tightening spring will pop out the egg fork and will not be taken out by the egg fork. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.
[0014] Figure 1 It is a structural schematic diagram of the assembly structure of the utility model;
[0015] Figure 2 It is a structural schematic diagram of the gear of the utility model;
[0016] Figure 3 It is a structural schematic diagram of the tightening spring of the utility model;
[0017] Figure 4 The utility model is a schematic diagram of the structure of the electric motor of the egg beater.
[0018] In the figure: 1. gear; 2. egg fork connector; 3. connecting hole; 4. limiting ring; 5. tightening spring mounting groove; 6. tightening spring; 7. plug-in notch; 8. positioning notch; 9. bending part; 2a. columnar part; 2b. annular reinforcement rib; 10. motor body; 11. mounting bracket; 12. worm. DETAILED DESCRIPTION
[0019] See also Figure 1-3As shown, an assembly structure of a gear and a tightening spring of the utility model comprises a gear 1, an egg fork connector 2 is integrally formed at the power output end of the gear 1, a connecting hole 3 for inserting the egg fork is axially formed at the free end of the egg fork connector 2, a limiting ring 4 is integrally formed at the free end of the egg fork connector 2, the limiting ring 4 cooperates with the egg fork connector 2 to form a tightening spring mounting groove 5, a tightening spring 6 is arranged in the tightening spring mounting groove 5, a plug-in notch 7 cooperating with the limiting ear on the external egg fork is arranged on the limiting ring 4 and the egg fork connector 2, a positioning notch 8 which conducts to the tightening spring mounting groove 5 is arranged on the limiting ring 4, and a bending portion 9 cooperating with the positioning notch 8 is formed at one end of the tightening spring 6. The tightening spring is limited by cooperating with the positioning notch on the limiting ring and the bent portion at one end of the tightening spring, thereby preventing the tightening spring from being displaced during use and preventing the tightening spring from being pulled out of the tightening spring installation groove by the egg fork limiting ear and falling off when the egg fork is removed.
[0020] In this embodiment, the positioning notch 8 is located in the middle of the limiting ring 4 between the two insertion notches 7 .
[0021] In this embodiment, preferably, the positioning notch 8 is located outside the limiting ring 4, and the bent portion 9 is vertically arranged upward and clamped in the positioning notch 8. The positioning notch is arranged outside the limiting ring, and the contact between the bent portion and the outer wall of the egg fork is blocked by the side wall of the limiting ring, which can further prevent the rotation of the egg fork from causing the tightening spring to be displaced.
[0022] In this embodiment, preferably, the number of turns of the tightening spring 6 is 1.2-1.4 turns. The number of turns of the tightening spring is set to a smaller number of turns, 1.2-1.4 turns, which can reduce the width of the tightening spring installation groove while ensuring the fork retraction effect, making the egg fork connector compact.
[0023] In this embodiment, the egg fork connector 2 includes a columnar portion 2a integrally formed with the gear 1, and the connecting hole 3 is located at the center of the columnar portion 2a.
[0024] The limiting ring 4 is integrally formed at the free end of the columnar portion 2a. A plurality of annular reinforcing ribs 2b are distributed axially at intervals on the columnar portion 2a below the limiting ring 4. The annular reinforcing rib 2b at the uppermost end cooperates with the limiting ring 4 to form a tightening spring installation groove 5. The strength of the columnar portion is strengthened by the annular reinforcing ribs, which can ensure the stability of the egg fork during rotation and improve the service life of the columnar portion. In addition, the annular reinforcing rib at the uppermost end can cooperate with the limiting ring to form a tightening spring installation groove, and there is no need to dig additional grooves on the columnar portion, so as to ensure that the columnar portion has sufficient strength.
[0025] When in use, the tightening spring is sleeved in the tightening spring installation groove between the uppermost annular reinforcing rib and the limiting ring, and the bent portion is matched with the positioning notch.
[0026] See also Figure 4 As shown, an egg beater motor of the above-mentioned assembly structure includes a motor body 10 and a mounting bracket 11 provided at the power output end of the motor body 10, a worm 12 is fixed on the power output shaft of the motor body 10, and a gear 1 meshing with the worm 12 is rotatably connected to the mounting bracket 11. When the egg fork is inserted into the gear and driven by the worm to rotate for beating eggs, the tightening spring on the gear will not be displaced under the limiting effect, and when the egg fork is removed, it can be ensured that the tightening spring will pop out the egg fork and the tightening spring will not be taken out by the egg fork.
[0027] When in use, the gear equipped with the tightening spring is installed on the installation bracket to mesh with the worm, the limiting ear on the egg fork is aligned with the plug-in notch of the gear power output end, and then the egg fork is inserted into the connecting hole to complete the assembly.
[0028] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.
Claims
1. An assembly structure of a gear and a tightening spring, comprising a gear (1), an egg fork connector (2) integrally formed at the power output end of the gear (1), a connecting hole (3) for inserting an egg fork formed axially at the free end of the egg fork connector (2), a limiting ring (4) integrally formed at the free end of the egg fork connector (2), the limiting ring (4) cooperates with the egg fork connector (2) to form a tightening spring mounting groove (5), a tightening spring (6) is arranged in the tightening spring mounting groove (5), and an inserting notch (7) that cooperates with the limiting ear on the external egg fork is arranged on the limiting ring (4) and the egg fork connector (2), characterized in that: A positioning notch (8) connected to the tightening spring installation groove (5) is provided on the limiting ring (4), and a bending portion (9) matching the positioning notch (8) is formed by bending at one end of the tightening spring (6).
2. The assembly structure of a gear and a tightening spring according to claim 1, characterized in that: The positioning notch (8) is located in the middle of the limiting ring (4) between the two insertion notches (7).
3. The assembly structure of a gear and a tightening spring according to claim 1, characterized in that: The positioning notch (8) is located outside the limiting ring (4), and the bent portion (9) is arranged vertically upward and is clamped in the positioning notch (8).
4. The assembly structure of a gear and a tightening spring according to claim 1, characterized in that: The number of turns of the tightening spring (6) is 1.2-1.4 turns.
5. The assembly structure of a gear and a tightening spring according to claim 1, characterized in that: The egg fork connecting piece (2) comprises a columnar portion (2a) integrally formed with the gear (1), and the connecting hole (3) is located at the center of the columnar portion (2a); The limiting ring (4) is integrally formed at the free end of the columnar portion (2a), and a plurality of annular reinforcing ribs (2b) are distributed at intervals along the axial direction on the columnar portion (2a) below the limiting ring (4), and the annular reinforcing rib (2b) located at the uppermost end cooperates with the limiting ring (4) to form a tightening spring installation groove (5).
6. An egg beater motor adopting the assembly structure described in any one of claims 1-5, comprising a motor body (10) and a mounting bracket (11) arranged at the power output end of the motor body (10), a worm (12) being fixed on the power output shaft of the motor body (10), and a gear (1) meshing with the worm (12) being rotatably connected to the mounting bracket (11).