Connecting piece

Abstract

The utility model relates to a connecting piece which comprises a body, the body comprises a first structural face and a second structural face, the first structural face is used for making contact with a motor component and further used for making contact with a first sealing piece, the first sealing piece is used for preventing leakage between the body and the motor component, and the second structural face is used for making contact with a pump body. The second structural face is further used for making contact with a second sealing piece, and the second sealing piece is used for preventing leakage between the body and the pump body. The sealing structure has the advantages that the sealing structure is in sealing fit with the motor component and the pump body, so that connection between the motor component and the pump body is more reliable, and the leakage probability is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of pump bodies, and in particular to a connecting piece. Background Art

[0002] When most motor-driven pumps are working, the motor and the pump body need to be sealed and connected. The previous connection method makes the medium easy to leak and the connection state is unstable. Utility Model Content

[0003] In view of the deficiencies in the prior art, one of the purposes of the present application is to provide a connecting piece which has the advantages of sealing with the motor component and the pump body respectively, so that the connection between the motor component and the pump body is more reliable and the probability of leakage is reduced.

[0004] The above-mentioned purpose of the present application is achieved through the following technical solutions:

[0005] A connecting piece includes a main body, the main body includes a first structural surface and a second structural surface, the first structural surface is used to contact with a motor component, the first structural surface is also used to contact with a seal, the first seal is used to prevent leakage between the main body and the motor component, the second structural surface is used to contact with a pump body, the second structural surface is also used to contact with a seal, the second seal is used to prevent leakage between the main body and the pump body.

[0006] By adopting the above technical solution, seal 1 prevents leakage between the main body and the motor component, and seal 2 prevents leakage between the main body and the pump body, so that the motor component and the pump body are sealed and connected through the main body, thereby making the connection between the motor component and the pump body reliable and reducing the probability of leakage.

[0007] In a preferred example, the present application can be further configured as follows: structural surface 1 is set in a step shape.

[0008] By adopting the above technical solution, the motor component cooperates with the stepped structural surface 1 of the body, thereby ensuring the compression amount of the seal 1 and achieving plane sealing.

[0009] In a preferred example, the present application can be further configured as follows: a receiving cavity is provided on the structural surface 1, and the receiving cavity is used to receive the seal 1 and guide the motor components into the body.

[0010] By adopting the above technical solution, the accommodating cavity accommodates the sealing member and guides the motor component together, making it easier for the motor component to enter the body.

[0011] In a preferred example, the present application can be further configured as follows: a boss is provided on the main body, the boss is used to extend into the pump body and limit the position of the pump body on the main body, structural surface two is provided on the boss, a sealing groove is provided on structural surface two, and the sealing groove and sealing member two cooperate to make the main body and the pump body sealed and connected.

[0012] By adopting the above technical solution, the boss extends into the pump body, so that the sealing groove on the second structural surface and the inner wall surface of the pump body compress the second seal, thereby achieving radial sealing between the main body and the pump body.

[0013] In a preferred example, the present application can be further configured as follows: a connecting portion is provided on the main body, through which the connecting member 1 and the connecting member 2 pass, and the connecting portion is used to connect the main body, the motor component and the pump body.

[0014] By adopting the above technical solution, the connection part allows connector 1 and connector 2 to pass through, so that connector 1 and connector 2 connect the main body, motor component and pump body, thereby achieving the connection strength and sealing reliability between the motor component and the main body.

[0015] In a preferred example, the present application can be further configured as follows: the connecting portion includes a connecting hole 1, and the connecting hole 1 is used for a connecting member 1 to pass through and install the body on the motor component.

[0016] By adopting the above technical solution, the connecting hole is used for the connecting piece to pass through, so as to achieve the purpose of installing the body on the motor component.

[0017] In a preferred example, the present application can be further configured as follows: the connecting portion includes a second connecting hole, and the second connecting hole is used for the second connecting member to pass through and to install the main body and the motor component on the pump body.

[0018] By adopting the above technical solution, the second connecting hole is used for the second connecting member to pass through, so as to achieve the purpose of installing the main body and the motor component on the pump body.

[0019] In a preferred example, the present application can be further configured as follows: a groove is provided on the connecting portion, a connecting hole 1 is provided on the groove, and the groove is used to accommodate a portion of the connecting member 1.

[0020] By adopting the above technical solution, it is avoided that a part of the connecting member 1 extends out from the main body, thereby affecting the connection between the main body and the pump body.

[0021] In a preferred example, the present application can be further configured as follows: the second connection hole is provided on the groove, and the central axes of the groove, the first connection hole and the second connection hole are centrally symmetrical with respect to the central axis of the body.

[0022] By adopting the above technical solution, the connection points are evenly distributed, so that the motor components and the pump body are more stable during operation.

[0023] In a preferred example, the present application can be further configured as follows: a notch is provided on the boss, and the notch is used to reduce the contact area between the end face of the boss and the pump body.

[0024] By adopting the above technical solution, the notch is provided to reduce the contact area between the end face of the boss and the pump body, thereby reducing the vibration generated when the pump body is running. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0026] Figure 2 It is a structural schematic diagram from another perspective of an embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the cross-sectional structure of an embodiment of the present application.

[0028] Figure numerals: 1, main body; 2, structural surface one; 3, structural surface two; 4, accommodating cavity; 5, boss; 6, sealing groove; 7, connecting part; 8, groove; 81, connecting hole one; 82, connecting hole two; 9, notch. DETAILED DESCRIPTION

[0029] The present application is further described in detail below in conjunction with the accompanying drawings.

[0030] Reference Figure 1 , Figure 2 and Figure 3 , is a connecting piece disclosed in the present application, including a body 1, the body 1 includes a structural surface 2 and a structural surface 3, the structural surface 2 is used to contact with the motor component, the structural surface 2 is also used to contact with the sealing member 1, in this embodiment, the sealing member 1 can adopt a flat sealing ring, the sealing member 1 is used to prevent leakage between the body 1 and the motor component, the structural surface 2 is set to a step shape, and a accommodating cavity 4 is provided on the structural surface 2, the accommodating cavity 4 is used to accommodate the sealing member 1 and guide the motor component into the body 1, so that the motor component compresses the sealing member 1, thereby realizing a sealed connection between the body 1 and the motor component.

[0031] Structural surface 2 3 is used to contact the pump body, and structural surface 2 3 is also used to contact seal 2. A sealing groove 6 is provided on structural surface 2 3. In the present embodiment, seal 2 can adopt an O-ring. Seal 2 is used to prevent leakage between the main body 1 and the pump body. The sealing groove 6 and seal 2 cooperate to make the main body 1 and the pump body sealed and connected, so that the inner wall surface of the pump body compresses seal 2, thereby realizing a sealed connection between the main body 1 and the pump body.

[0032] A boss 5 is provided on the main body 1, and the boss 5 is used to extend into the pump body and limit the position of the pump body on the main body 1. A notch 9 is provided on the boss 5, and the notch 9 is used to reduce the contact area between the end face of the boss 5 and the pump body. The notch 9 is provided so that the contact area between the end face of the boss 5 and the pump body is smaller, thereby making the vibration generated when the pump body is running smaller.

[0033] The main body 1 is provided with a connecting portion 7, through which the connecting member 1 and the connecting member 2 pass. The connecting portion 7 is used to connect the main body 1, the motor component and the pump body. The connecting portion 7 includes a connecting hole 1 81, a connecting hole 2 82 and a groove 8. In the present embodiment, the connecting hole 1 81, the connecting hole 2 82 and the groove 8 are set to four. In other embodiments, the number of the connecting hole 1 81, the connecting hole 2 82 and the groove 8 can be set as needed.

[0034] The connecting hole 1 81 and the connecting hole 2 82 are arranged on the groove 8. The connecting hole 1 81 is for the connecting member 1 to pass through and install the main body 1 on the motor component. The connecting hole 2 82 is for the connecting member 2 to pass through and install the main body 1 and the motor component on the pump body. The groove 8 is used to accommodate a part of the connecting member 1. The central axes of the groove 8, the connecting hole 1 81 and the connecting hole 2 82 are symmetrical relative to the central axis of the main body 1. In this embodiment, the connecting member 1 and the connecting member 2 can be screws, and a part of the connecting member 1 refers to a nut.

[0035] During installation, place seal 1 in the accommodating chamber 4, extend the motor component toward the main body 1, and the accommodating chamber 4 guides the motor component into the main body 1. Then, pass the connecting piece 1 through the connecting hole 1 81 and fix it with the motor component. The motor component compresses seal 1 to achieve planar sealing. Place seal 2 in the sealing groove 6 so that the boss 5 extends into the pump body. Then, pass the connecting piece 2 through the motor component and the connecting hole 2 82 and fix it with the pump body. The inner wall of the pump body compresses seal 2 to achieve radial sealing.

[0036] The implementation principle of this embodiment is: the compression amount of the seal 1 is guaranteed by cooperating with the motor component through the step-shaped structural surface 1 2, so as to realize the planar sealing of the main body 1 and the motor component; the sealing groove 6 of the main body 1 and the inner wall surface of the pump body compress the seal 2, so as to realize the radial sealing of the main body 1 and the pump body; and then the main body 1 and the motor component and the pump body are fixedly connected through the connecting part 7, so as to ensure the structural strength and sealing reliability.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connecting piece, characterized in that: The invention comprises a main body (1), wherein the main body (1) comprises a first structural surface (2) and a second structural surface (3), wherein the first structural surface (2) is used to contact with a motor component, and the first structural surface (2) is also used to contact with a first sealing member, and the first sealing member is used to prevent leakage between the main body (1) and the motor component, and the second structural surface (3) is used to contact with a pump body, and the second structural surface (3) is also used to contact with a second sealing member, and the second sealing member is used to prevent leakage between the main body (1) and the pump body.

2. A connecting piece according to claim 1, characterized in that: The structural surface 1 (2) is designed to be stepped.

3. A connecting piece according to claim 1, characterized in that: A receiving cavity (4) is provided on the structural surface one (2), and the receiving cavity (4) is used to receive the sealing component one and guide the motor component into the body (1).

4. A connecting piece according to claim 1, characterized in that: The body (1) is provided with a boss (5), the boss (5) is used to extend into the pump body and define the position of the pump body on the body (1), the second structural surface (3) is provided on the boss (5), the second structural surface (3) is provided with a sealing groove (6), the sealing groove (6) and the second sealing member cooperate to seal the body (1) and the pump body.

5. A connecting piece according to claim 1, characterized in that: The main body (1) is provided with a connecting portion (7), through which the first connecting member and the second connecting member pass, and the connecting portion (7) is used to connect the main body (1), the motor component and the pump body.

6. A connecting piece according to claim 1, characterized in that: The connecting portion (7) comprises a connecting hole (81), wherein the connecting hole (81) allows a connecting member (1) to pass through and to mount the body (1) on the motor component.

7. A connecting piece according to claim 6, characterized in that: The connecting portion (7) comprises a second connecting hole (82), and the second connecting hole (82) allows the second connecting member to pass through and installs the main body (1) and the motor component on the pump body.

8. A connecting piece according to claim 6, characterized in that: A groove (8) is provided on the connecting portion (7), a connecting hole (81) is provided on the groove (8), and the groove (8) is used to accommodate a part of the connecting piece (1).

9. A connecting piece according to claim 6, characterized in that: The second connecting hole (82) is arranged on the groove (8), and the central axes of the groove (8), the first connecting hole (81) and the second connecting hole (82) are centrally symmetrical with respect to the central axis of the body (1).

10. A connecting piece according to claim 2, characterized in that: The boss (5) is provided with a notch (9), and the notch (9) is used to reduce the contact area between the end surface of the boss (5) and the pump body.

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