Flow guide shell capable of being rapidly installed

Abstract

The utility model provides a flow guide shell capable of being rapidly installed, and belongs to the technical field of flow guide shells. The problem that an existing flow guide shell is inconvenient to disassemble and assemble is solved. The flow guide shell capable of being rapidly installed comprises a flow guide shell body, an upper connecting part and a lower connecting part are arranged at the upper end and the lower end of the flow guide shell body respectively, a clamping groove is formed in the upper connecting part, a clamping protrusion is arranged on the upper connecting part, a positioning groove is formed in the lower connecting part, and a clamping device is arranged on the lower connecting part. A mounting space for mounting a clamping device is formed in the lower connecting part, the clamping device is composed of a clamping convex block and a reset spring, when the two flow guide shell bodies are connected, an unlocking device is arranged between the upper connecting part and the lower connecting part, and a moving space for allowing the unlocking device to move is formed between the upper connecting part and the lower connecting part. The utility model has the advantage of convenient maintenance.

Description

Technical Field

[0001] The utility model belongs to the technical field of guide shells and relates to a guide shell, in particular to a quickly installed guide shell. Background Art

[0002] The conventional multi-stage centrifugal pump's flow guide midsection is constructed by stacking multiple flow guide housings. This allows for surface contact between adjacent stages during the stacking process to achieve sealing. The edges of the outer stop ports in existing flow guide housings are formed using multiple stamping processes. This process results in complex stamping dies and a small flat surface width after machining, leading to leakage between adjacent stacked flow guide housings and poor sealing.

[0003] According to the application number CN217354906U retrieved from the patent website, the patent name is "A Multi-stage Centrifugal Pump Guide Shell", which discloses a multi-stage centrifugal pump guide shell, including a guide shell body, wherein the two ends of the guide shell body are provided with an inner stop port and an outer stop port that can cooperate with each other, the edge of the outer stop port is rolled inward to form an inner curling edge, the inner curling edge is provided with a first plane at the end face of the guide shell body, and the inner curling edge is provided with a first circumferential surface in the circumferential direction of the inner diameter of the outer stop port. Although the above-mentioned utility model has good sealing performance of the shell connection, the pressure piece, positioning groove and positioning protruding ring on the shell after installation make it inconvenient to disassemble, repair and replace in the later stage, and the connection and fixing strength is not strong enough, resulting in easy falling off during use. Summary of the Invention

[0004] The purpose of the utility model is to provide a guide shell with high connection strength and quick installation to solve the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a quick-installed deflector shell, including a deflector shell body, characterized in that the upper and lower ends of the deflector shell body are respectively provided with an upper connecting part and a lower connecting part, the upper connecting part is provided with a clamping groove, the upper connecting part is provided with a clamping protrusion, the lower connecting part is provided with a positioning groove, the lower connecting part is provided with a clamping device, the lower connecting part is provided with an installation space for installing the clamping device, the clamping device is composed of a clamping protrusion and a reset spring, when the two deflector shell bodies are connected, an unlocking device is provided between the upper connecting part and the lower connecting part, and a movable space for the unlocking device to move is provided between the upper connecting part and the lower connecting part.

[0006] In the above-mentioned quick-installation guide shell, an inclined portion is provided on the clamping protrusion.

[0007] In the above-mentioned quick-installation guide shell, a sealing ring is provided on the lower connecting portion and on the inner wall opposite to the positioning groove.

[0008] In the above-mentioned quick-installed guide shell, the diameter of the clamping protrusion is larger than the diameter of the guide shell body.

[0009] Compared with the prior art, the present invention enables the deflector shell to be quickly installed by cooperating with the snap-fit ​​protrusion, the snap-fit ​​groove and the snap-fit ​​device. When replacement and maintenance are needed later, the unlocking device can be pressed to press the snap-fit ​​protrusion into the installation space, and then the deflector shell can be unlocked by pulling it down again. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic cross-sectional structural diagram of the present utility model.

[0011] Figure 2 It is a partial enlarged structural diagram of point A of the present invention.

[0012] In the figure, 1. deflector shell body; 2. upper connecting part; 3. lower connecting part; 4. snap-in groove; 5. snap-in protrusion; 6. positioning groove; 7. snap-in device; 8. installation space; 9. snap-in protrusion; 10. reset spring; 11. unlocking device; 12. movable space; 13. inclined part; 14. sealing ring. DETAILED DESCRIPTION

[0013] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0014] like Figure 1 、 Figure 2 As shown, the quick-installed deflector shell includes a deflector shell body 1, and the upper and lower ends of the deflector shell body 1 are respectively provided with an upper connecting part 2 and a lower connecting part 3, the upper connecting part 2 is provided with a clamping groove 4, the upper connecting part 2 is provided with a clamping protrusion 5, the lower connecting part 3 is provided with a positioning groove 6, the lower connecting part 3 is provided with a clamping device 7, and the lower connecting part 3 is provided with an installation space 8 for installing the clamping device 7, the clamping device 7 is composed of a clamping protrusion 9 and a reset spring 10. When the two deflector shell bodies 1 are connected, an unlocking device 11 is provided between the upper connecting part 2 and the lower connecting part 3, and an activity space 12 for the unlocking device 11 to move is provided between the upper connecting part 2 and the lower connecting part 3.

[0015] In further detail, an inclined portion 13 is provided on the engaging protrusion 9 .

[0016] In further detail, a sealing ring 14 is provided on the lower connecting portion 3 and on the inner wall opposite to the positioning groove 6 .

[0017] To be more specific, the diameter of the clamping protrusion 5 is larger than the diameter of the guide housing body 1 .

[0018] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0019] Although this document frequently uses terms such as the guide housing body 1, upper connecting portion 2, lower connecting portion 3, engaging groove 4, engaging protrusion 5, positioning groove 6, engaging device 7, installation space 8, engaging protrusion 9, return spring 10, unlocking device 11, movable space 12, inclined portion 13, and sealing ring 14, the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations is contrary to the spirit of the present invention.

Claims

1. A quick-install guide shell, comprising a guide shell body (1), characterized in that: The upper and lower ends of the deflector shell body (1) are respectively provided with an upper connecting part (2) and a lower connecting part (3), the upper connecting part (2) is provided with a clamping groove (4), the upper connecting part (2) is provided with a clamping protrusion (5), the lower connecting part (3) is provided with a positioning groove (6), the lower connecting part (3) is provided with a clamping device (7), the lower connecting part (3) is provided with an installation space (8) for installing the clamping device (7), the clamping device (7) is composed of a clamping protrusion (9) and a return spring (10), when the two deflector shell bodies (1) are connected, an unlocking device (11) is provided between the upper connecting part (2) and the lower connecting part (3), and an activity space (12) for the unlocking device (11) to move is provided between the upper connecting part (2) and the lower connecting part (3).

2. A quick-install guide shell according to claim 1, characterized in that: The clamping protrusion (9) is provided with an inclined portion (13).

3. The quick-install guide shell according to claim 1, characterized in that: A sealing ring (14) is provided on the lower connecting portion (3) and on the inner wall relative to the positioning groove (6).

4. The quick-install guide shell according to claim 1, characterized in that: The diameter of the clamping protrusion (5) is larger than the diameter of the guide housing body (1).

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