Conveying screw and meat grinder

Abstract

The conveying screw comprises a screw body and a sealing structure, a connector is arranged at one end of the screw body, the sealing structure comprises a sealing ring and an elastic gasket, and a containing groove is formed in the side, away from the screw body, of the sealing ring; a plurality of tooth grooves are formed in the side face of the connector in the length direction of the connector, connecting teeth meshed with the tooth grooves are arranged on the side face of the elastic gasket, and a plurality of protruding structures abutting against the side face of the connector are further arranged on the side face of the elastic gasket. When the sealing ring and the elastic gasket are installed, the screw rod and the connector do not need to be disassembled, and the assembling efficiency is high; the sealing ring can directly penetrate through the connector and is arranged on the connector in a sleeving mode, the elastic gasket can penetrate through the connector by means of elastic deformation of the elastic gasket, after the elastic gasket penetrates through the connector and enters the containing groove, elastic deformation of the elastic gasket recovers, the elastic gasket is fixed by abutting against the connector through the protruding structure, and therefore the sealing ring is fixed through the elastic gasket.

Description

Technical Field

[0001] The utility model relates to the technical field of meat grinders, in particular to a conveying screw and a meat grinder. Background Art

[0002] A meat grinder is a kitchen appliance used to chop or mince ingredients such as meat and vegetables. The raw meat is chopped by the shearing action formed by the rotating cutting blade and the perforated blade on the orifice plate, and the raw materials are continuously discharged out of the machine under the action of the screw extrusion force. Meat grinders are often used in food processing processes such as making stuffing, grinding spices, and making meat sauce.

[0003] When installing or removing the sealing ring of the conveying screw of the existing meat grinder, the screw and the connecting head need to be disassembled before installation, which has low assembly efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a conveying screw, aiming to solve the problem of low assembly efficiency in that the screw and the connector need to be disassembled before installation when installing or removing the sealing ring of the conveying screw of the existing meat grinder.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a conveying screw, comprising:

[0006] A screw, one end of which is provided with a connector for connecting to a motor;

[0007] A sealing structure is sleeved on one end of the connector close to the screw, the sealing structure comprises a sealing ring and an elastic gasket for locking the sealing ring, and a receiving groove for receiving the elastic gasket is provided on a side of the sealing ring away from the screw;

[0008] The side surface of the connector is provided with a plurality of tooth grooves along its length direction, the side surface of the elastic gasket is provided with connecting teeth meshed with the tooth grooves, and the side surface of the elastic gasket is also provided with a plurality of protrusion structures abutting against the side surface of the connector.

[0009] Optionally, the elastic gasket is provided with a shrinkage hole corresponding to the protruding structure, and the protruding structure and the shrinkage hole are arranged along the radial direction of the elastic gasket.

[0010] Optionally, an annular groove is provided at one end of the connector close to the screw rod, the elastic gasket is sleeved on the outer side of the annular groove, and the inner diameter of the elastic gasket is smaller than the outer diameter of the connector.

[0011] Optionally, an opening is provided at one end of the tooth groove away from the screw rod, and a side wall of the tooth groove close to the opening is inclined toward the outside of the tooth groove.

[0012] In addition, the utility model also provides a meat grinder, which includes the conveying screw rod described above.

[0013] The beneficial effects of the utility model compared with the prior art are as follows: when installing the sealing ring and the elastic gasket, the utility model does not need to disassemble the screw and the connecting head, and the assembly efficiency is high; the sealing ring can pass through the connecting head and be sleeved on the end of the connecting head close to the screw, and the elastic gasket can pass through the connecting head by relying on its own elastic deformation. When the elastic gasket passes through the connecting head and enters the accommodating groove, the elastic deformation of the elastic gasket is restored, and the elastic gasket is fixed by abutting the connecting head with the protruding structure. At this time, the sealing ring can be limited by the elastic gasket, so that the sealing ring is fixed by the elastic gasket; through the meshing of the connecting teeth and the tooth grooves, the screw, the connecting head, the sealing ring, and the elastic gasket can rotate synchronously, which can avoid the problem that the sealing effect of the sealing ring gradually deteriorates due to friction between the sealing ring and the connecting head. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional schematic diagram of the conveying screw of the utility model;

[0016] Figure 2 It is an exploded schematic diagram of the conveying screw of the utility model;

[0017] Figure 3 It is a partial cross-sectional view of the conveying screw of the utility model;

[0018] Figure 4 It is a side view of the elastic gasket of the utility model.

[0019] Description of Figure Numbers:

[0020] 1. Screw; 2. Connector; 3. Sealing ring; 4. Elastic gasket; 21. Tooth groove; 22. Annular groove; 23. Opening; 31. Receiving groove; 41. Connecting tooth; 42. Protruding structure; 43. Shrinkage hole.

[0021] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] The utility model provides a conveying screw. Figures 1 to 4 The utility model provides a specific embodiment of the conveying screw.

[0026] Reference Figures 1 to 3 , the conveying screw comprises:

[0027] A screw rod 1, one end of which is provided with a connector 2 for connecting to a motor;

[0028] A sealing structure is sleeved on one end of the connector 2 close to the screw 1, the sealing structure comprises a sealing ring 3 and an elastic gasket 4 for locking the sealing ring 3, and a receiving groove 31 for receiving the elastic gasket 4 is provided on the side of the sealing ring 3 away from the screw 1;

[0029] The side of the connector 2 is provided with a plurality of tooth grooves 21 along its length direction, the side of the elastic gasket 4 is provided with connecting teeth 41 meshing with the tooth grooves 21 , and the side of the elastic gasket 4 is also provided with a plurality of protrusion structures 42 abutting against the side of the connector 2 .

[0030] The inner diameter of the sealing ring 3 is slightly larger than the outer diameter of the connector 2 , and the inner diameter of the elastic gasket 4 is slightly smaller than the outer diameter of the connector 2 .

[0031] In the present invention, since the inner diameter of the sealing ring 3 is larger than the outer diameter of the connecting head 2, the sealing ring 3 can pass through the connecting head 2 and be sleeved on the end of the connecting head 2 close to the screw 1. Although the inner diameter of the elastic gasket 4 is smaller than the outer diameter of the connecting head 2, the elastic gasket 4 can pass through the connecting head 2 by relying on its own elastic deformation. When the elastic gasket 4 passes through the connecting head 2 and enters the accommodating groove 31, the elastic deformation of the elastic gasket 4 is restored, and the elastic gasket 4 is fixed by abutting against the connecting head 2 through the convex structure 42. At this time, the sealing ring 3 can be limited by the elastic gasket 4 to fix the sealing ring 3, so that when installing the sealing ring 3 and the elastic gasket 4, there is no need to disassemble the screw 1 and the connecting head 2, thereby improving the assembly efficiency; through the meshing of the connecting teeth 41 and the tooth grooves 21, the screw 1, the connecting head 2, the sealing ring 3, and the elastic gasket 4 can rotate synchronously, which can avoid the problem that the sealing effect of the sealing ring 3 gradually deteriorates due to friction between the sealing ring 3 and the connecting head 2.

[0032] The elastic gasket 4 is provided with a shrinkage hole 43 corresponding to the protrusion structure 42, and the protrusion structure 42 and the shrinkage hole 43 are arranged along the radial direction of the elastic gasket 4. Figures 2 to 4 The shrinkage hole 43 is correspondingly arranged on the outer side of the protruding structure 42. By setting the shrinkage hole 43, space can be provided for the radial expansion and contraction of the protruding structure 42, thereby reducing the friction between the protruding structure 42 and the connector 2 during the assembly process, thereby avoiding the problem that the protruding structure 42 is irreversibly deformed along the axial direction of the elastic gasket 4, resulting in a weakened limiting effect on the sealing ring 3.

[0033] An annular groove 22 is provided at one end of the connector 2 close to the screw 1, and the elastic gasket 4 is sleeved on the outer side of the annular groove 22, and the inner diameter of the elastic gasket 4 is smaller than the outer diameter of the connector 2. After the elastic gasket 4 elastically deforms and passes through the connector 2 and is sleeved on the outer side of the annular groove 22, the elastic deformation of the elastic gasket 4 is restored, and at this time, the elastic gasket 4 partially extends into the annular groove 22, and the elastic gasket 4 can be limited by the annular groove 22, thereby limiting the sealing ring 3.

[0034] In order to facilitate the installation of the sealing ring 3, the existing meat grinder conveying screw 1 and the connector 2 are usually separate structures, and the screw 1 and the connector 2 need to be installed by screws and hardware gaskets, which has low assembly efficiency. However, the sealing structure design of the utility model can also install the sealing ring 3 without disassembling the screw 1 and the connector 2. Therefore, in this embodiment, the screw 1 and the connector 2 can be set as an integrated structure, thereby further improving assembly efficiency and reducing manufacturing costs.

[0035] An opening 23 is provided at one end of the tooth groove 21 away from the screw rod 1, and a side wall of the tooth groove 21 near the opening 23 is inclined toward the outside of the tooth groove 21. Figures 2 to 4 This arrangement allows the opening 23 of the tooth groove 21 to expand outward, making it easier for the connecting tooth 41 to align with the tooth groove 21 when the elastic gasket 4 is installed, thereby reducing the difficulty of assembling the elastic gasket 4.

[0036] Optionally, the shrinkage hole 43 is configured as a waist-shaped hole extending along the circumference of the elastic gasket 4, and the waist-shaped hole is symmetrically arranged along the central axis of the protruding structure 42. This arrangement can make each part of the protruding structure 42 deform evenly, thereby reducing the concentration of pressure on the elastic gasket 4, thereby reducing local stress and extending the service life of the elastic gasket 4.

[0037] The utility model also proposes a meat grinder, which includes a conveying screw 1. The specific structure of the conveying screw 1 refers to the above embodiment. Since the meat grinder proposed by the utility model includes all schemes of all embodiments of the above conveying screw 1, it has at least the same technical effect as the conveying screw 1, which will not be elaborated here one by one.

[0038] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A conveying screw, characterized in that: include: A screw, one end of which is provided with a connector for connecting to a motor; A sealing structure is sleeved on one end of the connector close to the screw, the sealing structure comprises a sealing ring and an elastic gasket for locking the sealing ring, and a receiving groove for receiving the elastic gasket is provided on a side of the sealing ring away from the screw; The side surface of the connector is provided with a plurality of tooth grooves along its length direction, the side surface of the elastic gasket is provided with connecting teeth meshed with the tooth grooves, and the side surface of the elastic gasket is also provided with a plurality of protrusion structures abutting against the side surface of the connector.

2. The conveying screw according to claim 1, characterized in that: The elastic gasket is provided with a shrinkage hole corresponding to the protruding structure, and the protruding structure and the shrinkage hole are arranged along the radial direction of the elastic gasket.

3. The conveying screw according to claim 1, characterized in that: An annular groove is provided at one end of the connector close to the screw rod, and the elastic gasket is sleeved on the outer side of the annular groove. The inner diameter of the elastic gasket is smaller than the outer diameter of the connector.

4. The conveying screw according to claim 1, characterized in that: An opening is arranged at one end of the tooth groove away from the screw rod, and a side wall of the tooth groove close to the opening is arranged to be inclined toward the outer side of the tooth groove.

5. A meat grinder, characterized in that: It comprises a conveying screw as described in any one of claims 1 to 4.

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