Hose pump shell

Abstract

The utility model discloses a hose pump shell, and relates to the field of hose pumps, the hose pump shell comprises a circumferential enclosure bulkhead and a rear end cover which form a pump shell, the circumferential enclosure bulkhead comprises an upper straight line section and a lower straight line section which are connected to two ends of a semi-arc section, and a small arc section arranged between the upper straight line section and the lower straight line section, and the circumferential enclosure bulkhead is provided with a through hole at the small arc section; through holes are formed in the small arc section to increase heat dissipation of the pump shell, and meanwhile the self weight of the pump shell is reduced.

Description

Technical Field

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

[0002] A hose pump is a material conveying device whose basic structure includes a pump casing and a hose placed inside the pump casing. A rotor bracket driven by a main shaft drives rollers to squeeze the hose to pump the medium. Due to the frequent squeezing of the rollers and the hose, the temperature inside the pump casing is relatively high. On March 13, 2017, the applicant submitted a utility model patent named "Hose Pump Casing" (Document No. CN206555122U) to solve the problem of heat dissipation in the pump casing.

[0003] However, in the solution in the above-mentioned document, the pump casing includes a circumferential wall and a rear end cover, and corresponding holes are only provided on the rear end cover to achieve heat dissipation. The heat dissipation effect is limited. After the hose pump has been working for a long time, the temperature inside the casing will still be relatively high, which will lead to the problem of reduced service life of components such as bearings and hoses; and this type of pump casing is generally made of stainless steel, and the overall mass is large, which is not conducive to transportation. Utility Model Content

[0004] The utility model aims to provide a hose pump housing, in which a through hole is provided on a side of the circumferential side wall which is not squeezed by the hose to increase the heat dissipation of the pump housing and reduce the dead weight of the pump housing.

[0005] The utility model can be implemented through the following technical solution: a hose pump housing, including a circumferential wall and a rear end cover constituting the pump housing, the circumferential wall including an upper straight segment and a lower straight segment connected at both ends of the semicircular arc segment, and a small arc segment arranged between the upper straight segment and the lower straight segment, and the circumferential wall is provided with a through hole at the small arc segment.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] The setting of the through hole, on the one hand, increases the hole area of ​​the pump casing, accelerates the exchange of hot and cold air inside and outside the hose pump casing, which is beneficial to improving the heat dissipation effect of the hose pump; on the other hand, it reduces the steel material required for the pump casing molding, reduces the weight of the pump casing itself, and facilitates transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a cross-sectional view of the pump casing in the utility model;

[0009] Figure 2 、 Figure 3 Schematic diagrams of the three-dimensional structure of the front and rear sides of the pump casing respectively;

[0010] Figure 4 This is a schematic diagram of the structure of the pump housing in the present invention when a protective net is provided at the through hole;

[0011] Figure 5 This is a schematic diagram of the structure of the utility model when a rear guard net is provided on the back side of the rear end cover;

[0012] Figure 6 It is a side view of the circumferential side wall at the through hole. DETAILED DESCRIPTION

[0013] See also Figure 1-6 As shown, a hose pump housing includes a circumferential wall 10 and a rear end cover 20 constituting the pump housing. The circumferential wall 10 includes an upper straight segment 12 and a lower straight segment 13 connected at both ends of the semicircular arc segment 11, and a small arc segment 14 arranged between the upper straight segment 12 and the lower straight segment 13. The circumferential wall 10 is provided with a through hole 15 at the small arc segment 14; the inner wall of the small arc segment 14 does not contact the hose, and when the roller squeezes the hose, the small arc segment 14 does not bear the pressure of the hose. By providing the through hole 15 at the small arc segment 14, the strength of the pump housing itself can be ensured. At the same time, the through hole 15 increases the hole area of ​​the pump housing on the one hand, accelerates the exchange of hot and cold air inside and outside the hose pump housing, and is beneficial to improving the heat dissipation effect of the hose pump. On the other hand, it reduces the steel material required for pump housing molding, reduces the weight of the pump housing itself, and is beneficial to transportation.

[0014] The opening edge of through-hole 15 is formed by two oppositely arranged axial edges 151 and two oppositely arranged circumferential edges 152. Axial edges 151 are parallel to the axial direction of the pump casing, while circumferential edges 152 are cocircular with small arc segment 14. The upper and lower axial edges 151 of the through-hole respectively abut the junction of semicircular segment 11 and upper straight segment 12, and the junction of semicircular segment 11 and lower straight segment 13. While ensuring the strength of the pump casing, the aperture range of through-hole 15 is maximized, ensuring good heat dissipation and reducing the weight of the pump casing.

[0015] A protective net 16 is installed at the hole area of ​​the through hole 15; since the environment in which the hose pump is located may contain creatures such as mice and snakes, by installing a protective net 16 at the hole area of ​​the through hole 15, they can be prevented from entering the interior of the pump casing from this position; at the same time, the protective net 16 is made of lightweight material, and compared with the shell in which the small arc segment 14 is in a closed state, the solution of setting the through hole 15 and the protective net 16 still has a better weight reduction effect.

[0016] The rear end cover 20 includes a bearing seat 21 in the middle, and four radial webs 22 are arranged on the outer periphery of the sleeve-shaped bearing seat 21 and connected to the rear end side of the circumferential wall 10. Ventilation holes 221 connecting the inside and outside of the pump casing are provided on the plate surface of the radial webs 22, and a ventilation area 23 connecting the inside and outside of the pump casing is formed between two adjacent radial webs 22; the ventilation holes 221 and the ventilation area 23 on the rear end cover 20 realize the exchange of hot and cold air inside and outside the hose pump casing. At the same time, when the hose pump is working, the rotation of the rotor disturbs the airflow in the casing, and the disturbance of the airflow accelerates the exchange of hot and cold air inside and outside the pump cavity, thereby reducing the temperature in the pump casing, thereby ensuring the service life of components such as bearings.

[0017] The back side of the rear end cover 20 is provided with a rear guard net 24, which can be set as Figure 5 The annular mesh plate or sheet shown can also be configured in a sector-shaped configuration to correspond to the sector-shaped apertures in the ventilation area 23 and the through-holes 221 in the radial web 22. This prevents animals such as mice and snakes from entering the pump casing through the holes in the rear end cover 20. Furthermore, since the rear mesh 24 is thin and made of lightweight material, it does not add significant weight to the casing.

Claims

1. A hose pump housing, comprising a circumferential wall (10) and a rear end cover (20) constituting the pump housing, wherein the circumferential wall (10) comprises an upper straight segment (12) and a lower straight segment (13) connected at both ends of a semicircular arc segment (11), and a small arc segment (14) disposed between the upper straight segment (12) and the lower straight segment (13), characterized in that: The circumferential wall (10) is provided with a through hole (15) at the small arc section (14).

2. The hose pump housing according to claim 1, characterized in that: The hole area edge of the through hole (15) is formed by two through hole axial edges (151) arranged opposite to each other and two through hole circumferential edges (152) arranged opposite to each other. The through hole axial edges (151) are parallel to the axial direction of the pump casing, and the through hole circumferential edges (152) are cocircularly arranged with the small arc segment (14).

3. The hose pump housing according to claim 1 or 2, characterized in that: The upper and lower axial edges (151) of the through holes are respectively close to the junction of the semicircular arc segment (11) and the upper straight segment (12) and the junction of the semicircular arc segment (11) and the lower straight segment (13).

4. The hose pump housing according to claim 1, 2 or 3, characterized in that: A protective net (16) is installed at the hole area of ​​the through hole (15).

5. The hose pump housing according to claim 1, characterized in that: The rear end cover (20) includes a bearing seat (21) in the middle. Four radial webs (22) are arranged on the outer periphery of the sleeve-shaped bearing seat (21) and connected to the rear end side of the circumferential wall (10). Ventilation holes (221) that connect the inside and outside of the pump casing are opened on the plate surface of the radial webs (22). A ventilation area (23) that connects the inside and outside of the pump casing is formed between two adjacent radial webs (22).

6. The hose pump housing according to claim 5, characterized in that: A rear protective net (24) is provided on the back side of the rear end cover (20).

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