Front cover plate of hose pump

Abstract

The utility model provides a front cover plate of a hose pump, which is characterized in that a middle through hole is formed in an annular plate, a circular plate is arranged at the large-aperture section of the stepped-hole-shaped middle through hole, and small ventilation holes are formed in the middle of the circular plate. According to the scheme, the small ventilation holes are formed in the circular plate, the air inlet and outlet amount in the hose pump shell is increased, internal heat dissipation is facilitated, and the service life of the hose can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hose pumps, in particular to a front cover plate of a hose pump. Background Art

[0002] In the existing technology, hose pumps are widely used. Their basic structure includes a front pump cover, a shell and a hose placed in the shell. The rotor bracket driven by the main shaft drives the roller to squeeze the hose to pump the medium. The front pump cover is installed on the shell to prevent foreign matter from entering the shell or the medium from splashing out of the shell.

[0003] The name is "A Hose Pump" (document number CN207033721U, hereinafter referred to as Document 1). Although the text does not specifically describe the characteristics of the front pump cover, it can be seen from the drawings in the specification that the front pump cover has no holes and the shell is sealed after being connected to the pump shell. This front cover is not breathable, which will cause serious heat accumulation inside the shell and reduce the working life of the equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a front cover of a hose pump, which can improve the heat dissipation efficiency inside the shell while isolating the media inside and outside the hose pump, and can be replaced by a transparent cover to meet the need of observing the internal operation of the hose pump.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a front cover plate of a hose pump, characterized in that: the circular ring plate has a central through hole, a circular plate is arranged at the large aperture section of the stepped hole-shaped central through hole, and a ventilation hole is arranged in the middle of the circular plate.

[0006] In the above solution, the ventilation holes provided in the circular plate increase the air inlet and outlet volume inside the hose pump housing, which is beneficial to internal heat dissipation and can extend the working life of the hose. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is the main view of the utility model;

[0008] Figure 2 yes Figure 1 AA section view in;

[0009] Figure 3 yes Figure 2 A partial enlarged view of the . DETAILED DESCRIPTION

[0010] Depend on Figure 1 、 2 As shown in FIG3 , the front cover of the hose pump includes a circular plate 10 having a central through hole. A circular plate 20 is provided at the large-diameter section of the stepped central through hole, and a ventilation hole 21 is arranged in the middle of the circular plate 20.

[0011] The circular plate 10 can be either a wall plate for the hose receiving groove or an annular plate connected to the wall plate of the hose receiving groove. Placing the circular plate 20 at the large-diameter section of the stepped central through hole facilitates circumferential and axial positioning of the circular plate 20. Screws can then be used to conveniently connect and secure the circular plate 10 to the circular plate 20. To achieve a lightweight design, the circular plate 20 can be made of transparent plastic, and the ventilation holes 21 provided therein can be injection molded in one step to improve processing efficiency. The thickness of the circular plate 20 matches the length of the large-diameter section, ensuring that the outer surface of the hose pump front cover is flush.

[0012] Preferably, the ventilation holes 21 are all located in the middle area of ​​the circular plate 20.

[0013] More preferably, the ventilation holes 21 are located within the central square or circular area of ​​the circular plate 20. This placement, combined with the transparent material of the circular plate 20, ensures good heat dissipation while allowing external observation of the pump's internal components and operation. For small pumps, the ventilation holes 21 may be omitted if necessary.

[0014] Combine Figure 2 、 3 As shown, a circular boss 22 is formed on the surface of the circular plate 20 facing the pump chamber. This boss 22 is located within the small-diameter section of the stepped central through-hole. This solution achieves radial constraint positioning at two locations along the thickness of the circular plate 20, i.e., the axial direction of the hose pump, and axial positioning at one location. This ensures the stability of the circular plate 20 and effectively prevents vibration of the circular plate 20 caused by the hose pump operation.

[0015] The annular area of ​​the circular plate 20 outside the circular boss 22 is attached to the annular table surface between the large and small diameter sections of the central through hole and is connected by bolts. The use of screw-like parts for connection facilitates assembly and disassembly operations.

Claims

1. A hose pump front cover, characterized by: The annular plate (10) has a central through hole, a circular plate (20) is arranged at the large-diameter section of the stepped central through hole, and a ventilation hole (21) is arranged in the middle of the circular plate (20).

2. The hose pump front cover according to claim 1, characterized in that: The thickness of the circular plate (20) matches the length of the large-diameter hole section.

3. The hose pump front cover according to claim 1, characterized in that: The ventilation holes (21) are all located in the middle area of ​​the circular plate (20).

4. The hose pump front cover according to claim 3, characterized in that: The ventilation holes (21) are arranged in a square or circular area in the middle of the circular plate (20).

5. The hose pump front cover according to claim 2, characterized in that: A circular boss (22) is formed on the plate surface of the circular plate (20) facing the pump chamber side, and the circular boss (22) is located in the small-diameter section of the stepped hole-shaped middle through hole.

6. The hose pump front cover according to claim 2 or 5, characterized in that: The annular area of ​​the circular plate (20) outside the circular boss (22) is attached to the annular table surface between the large and small aperture sections of the central through hole and connected by bolts.

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