Combined motor shaft sealing ring

Abstract

The utility model discloses a combined sealing ring for a motor shaft, which is applied to the combined sealing ring, the combined sealing ring consists of an outer sealing ring, a middle sealing ring and an inner sealing ring, the inner sealing ring is connected with the middle sealing ring through a connecting mechanism, and the middle sealing ring is connected with the outer sealing ring through a positioning mechanism. The outer sealing ring, the middle sealing ring and the inner sealing ring are sequentially arranged from outside to inside, and the size of the outer sealing ring, the size of the middle sealing ring and the size of the inner sealing ring are sequentially arranged from large to small. Compared with a single sealing ring in the prior art, the multiple sealing rings arranged in the scheme are combined together, so that the sealing functionality is increased, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of combined motor shaft seal auxiliary equipment, and specifically, to a combined motor shaft sealing ring. Background Art

[0002] A motor shaft sealing ring is a fitting used for waterproofing and dustproofing inside a motor. Its main function is to prevent moisture and dust from entering the interior of the motor, thereby protecting the electrical components inside the motor from damage. Motor shaft sealing rings usually adopt specific materials and structures to ensure their good sealing performance and durability. In the prior art, motor shaft sealing rings are often single, resulting in a single sealing function and reduced practicality.

[0003] Another example in the prior art is an overlapping O-ring rubber sealing ring with the application number 202420068393.9. Through the combined use of an O-ring, an outer ring, a connecting ring, a limiting ring, and an annular limiting groove, two groups of O-rings are connected by the connecting ring. The overlapping combination of the O-ring and the connecting ring is beneficial to increasing its sealing effect and service life. Through the combined use of several groups of clamping grooves and clamping blocks, the function of positioning the limiting ring is achieved. However, its structure is relatively complex, and mutual misalignment occurs between multiple components, which is not conducive to ensuring its sealing performance.

[0004] In view of this, a combined motor shaft sealing ring is provided to overcome the above defects. Content of the Utility Model

[0005] In view of the problems in the related art, the utility model proposes a combined motor shaft sealing ring to overcome the above technical problems existing in the prior related art.

[0006] For this purpose, the specific technical solution adopted by the utility model is as follows: A combined motor shaft sealing ring is applied to a combined sealing ring. The combined sealing ring is composed of an outer sealing ring, a middle sealing ring, and an inner sealing ring. The inner sealing ring and the middle sealing ring are connected by a connection mechanism, and the middle sealing ring and the outer sealing ring are connected by a positioning mechanism.

[0007] As a further optimization, the outer sealing ring, the middle sealing ring, and the inner sealing ring are arranged from outside to inside in sequence, and the sizes of the outer sealing ring, the middle sealing ring, and the inner sealing ring are arranged from large to small in sequence.

[0008] As a further optimization, the connection mechanism includes a connection block and a connection groove. The connection blocks are symmetrically arranged on the outer wall of the inner sealing ring, and the connection grooves are symmetrically dug on the inner wall of the middle sealing ring and extend to the outer wall of the middle sealing ring.

[0009] As a further optimization, the inner wall size of the connection groove matches the size structure of the connection block and is in a snap-fit connection.

[0010] As a further optimization, the positioning mechanism includes a positioning groove and a positioning block. The positioning block is arranged in the middle of the outer wall of the middle sealing ring, the positioning groove is dug in the middle of the inner wall of the outer sealing ring, and the inner wall size of the positioning groove matches the structure of the positioning block.

[0011] As a further optimization, fixing grooves are symmetrically arranged on the inner wall of the outer sealing ring, and the inner wall size of the fixing groove matches the size and structure of the connecting block.

[0012] Compared with the prior art, the utility model has the following beneficial effects: The combined motor shaft sealing ring forms a new structure by combining multiple mechanisms such as the combined sealing ring, the connecting mechanism and the positioning mechanism. Through the engagement of the components in the connecting end, the inner sealing ring is fixed and limited in the middle sealing ring, and the components in the positioning end are engaged with each other, so that the middle sealing ring and the components thereon are fixed and limited in the outer sealing ring. Compared with the single sealing ring in the known technology, the multiple sealing rings set in this case are combined together, so that the sealing function is increased and the practicability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is the front view structure schematic diagram of the present utility model;

[0015] Figure 2 It is the split structure schematic diagram of the present utility model;

[0016] Figure 3 It is the enlarged schematic diagram of the split structure of the present utility model.

[0017] In the figure: 1, combined sealing ring; 2, outer sealing ring; 3, middle sealing ring; 4, inner sealing ring; 5, connecting mechanism; 6, positioning mechanism; 7, connecting block; 8, connecting groove; 9, positioning groove; 10, positioning block; 11, fixing groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0019] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] As Figures 1 to 3 shown, a combined motor shaft seal ring is applied to the combined seal ring 1. The combined seal ring 1 is composed of an outer seal ring 2, a middle seal ring 3, and an inner seal ring 4. The inner seal ring 4 is connected to the middle seal ring 3 through a connection mechanism 5, and the middle seal ring 3 is connected to the outer seal ring 2 through a positioning mechanism 6. The outer seal ring 2, the middle seal ring 3, and the inner seal ring 4 are arranged in sequence from outside to inside, and the sizes of the outer seal ring 2, the middle seal ring 3, and the inner seal ring 4 are arranged in sequence from large to small. Through the engagement of the components in the connection mechanism 5, the inner seal ring 4 is fixed and limited within the middle seal ring 3, and the components in the positioning mechanism 6 are engaged with each other, so that the middle seal ring 3 and the components thereon are fixed and limited within the outer seal ring 2. Compared with the single seal ring in the known technology, the multiple seal rings provided in this case are combined together, increasing the sealing function and improving the practicability.

[0022] The connection mechanism 5 includes a connection block 7 and a connection groove 8. The connection blocks 7 are symmetrically arranged on the outer wall of the inner seal ring 4. The connection grooves 8 are symmetrically dug on the inner wall of the middle seal ring 3 and extend to the outer wall of the middle seal ring 3. The inner wall size of the connection groove 8 matches the size and structure of the connection block 7 and is in a snap-fit connection. The connection block 7 is snapped into the connection groove 8, so that the inner seal ring 4 is fixed on the inner wall of the middle seal ring 3.

[0023] The positioning mechanism 6 includes a positioning groove 9 and a positioning block 10. The positioning block 10 is arranged in the middle of the outer wall of the middle sealing ring 3, and the positioning groove 9 is dug in the middle of the inner wall of the outer sealing ring 2. The inner wall size of the positioning groove 9 matches the structure of the positioning block 10. Fixed grooves 11 are symmetrically arranged on the inner wall of the outer sealing ring 2, and the inner wall size of the fixed grooves 11 matches the size and structure of the connecting block 7. The positioning block 10 is snapped into the positioning groove 9, so that the middle sealing ring 3 and the components thereon are fixed and limited on the inner wall of the outer sealing ring 1. When the connecting block 7 is snapped into the connecting groove 8, the connecting block 7 will extend to the outer wall of the middle sealing ring 3. When the middle sealing ring 3 and the outer sealing ring 2 are engaged, the connecting block 7 is snapped into the fixed groove 11, making the multi-point engagement more stable.

[0024] In summary, by means of the above technical solution of the present invention, when the sealing ring is in use, first, the connecting block 7 is snapped into the connecting groove 8, so that the inner sealing ring 4 is fixed on the inner wall of the middle sealing ring 3. Next, the positioning block 10 is snapped into the positioning groove 9, so that the middle sealing ring 3 and the components thereon are fixed and limited on the inner wall of the outer sealing ring 1. When the connecting block 7 is snapped into the connecting groove 8, the connecting block 7 will extend to the outer wall of the middle sealing ring 3. When the middle sealing ring 3 and the outer sealing ring 2 are engaged, the connecting block 7 is snapped into the fixed groove 11, making the multi-point engagement more stable.

[0025] The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A combined motor shaft sealing ring, characterized in that: The invention is applied to a combined sealing ring (1), wherein the combined sealing ring (1) is composed of an outer sealing ring (2), a middle sealing ring (3) and an inner sealing ring (4), wherein the inner sealing ring (4) and the middle sealing ring (3) are connected via a connection mechanism (5), and the middle sealing ring (3) and the outer sealing ring (2) are connected via a positioning mechanism (6).

2. A combined motor shaft sealing ring according to claim 1, characterized in that: The outer sealing ring (2), the middle sealing ring (3) and the inner sealing ring (4) are arranged in sequence from the outside to the inside, and the sizes of the outer sealing ring (2), the middle sealing ring (3) and the inner sealing ring (4) are arranged in sequence from large to small.

3. A combined motor shaft sealing ring according to claim 1 or 2, characterized in that: The connection mechanism (5) comprises a connection block (7) and a connection groove (8), wherein the connection block (7) is symmetrically arranged on the outer wall of the inner sealing ring (4), and the connection groove (8) is symmetrically excavated on the inner wall of the middle sealing ring (3) and extends to the outer wall of the middle sealing ring (3).

4. A combined motor shaft sealing ring according to claim 3, characterized in that: The inner wall size of the connection groove (8) matches the size structure of the connection block (7), and they are snap-fitted.

5. A combined motor shaft sealing ring according to claim 1, 2 or 4, characterized in that: The positioning mechanism (6) comprises a positioning groove (9) and a positioning block (10); the positioning block (10) is arranged in the middle of the outer wall of the middle sealing ring (3); the positioning groove (9) is dug in the middle of the inner wall of the outer sealing ring (2); and the inner wall size of the positioning groove (9) matches the structure of the positioning block (10).

6. A combined motor shaft sealing ring according to claim 5, characterized in that: The inner wall of the outer sealing ring (2) is symmetrically provided with fixing grooves (11), and the inner wall size of the fixing groove (11) matches the size structure of the connection block (7).

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