Pump cover facilitating sand removal

Abstract

The utility model relates to the field of pump covers, in particular to a pump cover convenient for sand removal, which comprises a first cover body and a second cover body, the first cover body is provided with a cooling cavity, the end face of the first cover body is provided with a sand removal hole communicated with the cooling cavity, and the second cover body is detachably mounted on the first cover body to block the sand removal hole. The sand removing device has the effect of improving sand removing thoroughness.

Description

Technical Field

[0001] This application relates to the field of pump covers, and more particularly to a pump cover that facilitates sand removal. Background Technology

[0002] A cooling cavity is circumferentially formed on the pump cover body. During the processing of the pump cover body, after the pump cover is formed, the cooling cavity needs to be desanded. Therefore, existing pump covers have two desanding holes reserved during the manufacturing process to discharge the molding sand in the cooling cavity. However, because the desanding holes of the existing pump cover are set perpendicular to the cooling cavity, there are dead corners when desanding through the holes, making it difficult to completely remove the molding sand from the cooling cavity. Utility Model Content

[0003] To improve the thoroughness of sand removal, this application provides a pump cover that facilitates sand removal.

[0004] This application provides a pump cover that facilitates sand removal, employing the following technical solution:

[0005] A pump cover for easy sand removal includes a first cover and a second cover. The first cover has a cooling chamber and a sand removal hole communicating with the cooling chamber on its end face. The second cover is detachably installed on the first cover to seal the sand removal hole.

[0006] By adopting the above technical solution, the cooling chamber and the sand removal hole are on a straight line, reducing the dead angles during sand removal, thus facilitating the removal of molding sand from the cooling chamber and improving the efficiency and thoroughness of sand removal. After cleaning, the second cover is installed on the first cover to seal the sand removal hole and the cooling chamber.

[0007] Optionally, the sand removal hole is arc-shaped, and the cross-section of the sand removal hole is adapted to the cross-section of the cooling cavity so that the width of the sand removal hole is the same as the width of the cooling cavity.

[0008] By adopting the above technical solution, the cross-section of the sand removal hole and the cross-section of the first annular groove are matched, thereby further reducing the dead angle of sand removal.

[0009] Optionally, the sidewall of the cooling chamber away from the sand removal hole is arc-shaped.

[0010] By adopting the above technical solution, the sidewall of the cooling chamber away from the sand removal hole is set in an arc shape, which can reduce the dead angle of sand removal.

[0011] Optionally, the first cover is provided with a positioning seat, the positioning seat is provided with a first positioning hole, and the second cover is provided with a positioning rod for engaging with the positioning hole.

[0012] By adopting the above technical solution, when installing the second cover, the positioning rod on the second cover is engaged with the first positioning hole on the positioning seat, thereby positioning the first cover and the second cover, and facilitating the welding and fixing of the first cover and the second cover.

[0013] Optionally, the first positioning hole is rectangular, the cross-section of the positioning rod is rectangular to match the first positioning hole, and the positioning seat is provided with a limiting component to limit the first positioning rod.

[0014] By adopting the above technical solution, after the positioning rod is engaged in the first positioning hole, the positioning seat and the positioning rod are limited by the limiting component to initially fix the first cover and the second cover.

[0015] Optionally, the limiting component includes a first clamping block and a second clamping block. The first clamping block has a first locking groove, and the second clamping block has a second locking groove. When the first clamping block and the second clamping block are spliced ​​together, the first locking groove and the second locking hole are used for the positioning seat and the positioning rod to be locked.

[0016] By adopting the above technical solution, a first clamping block and a second clamping block are provided. The first clamping block and the second clamping block clamp the positioning seat and the positioning rod to initially fix the first cover and the second cover, thereby facilitating the subsequent welding and fixing of the first cover and the second cover.

[0017] Optionally, a pressure block is provided on the bottom wall of the second locking slot, and when the second locking slot is locked on the positioning seat, the pressure block abuts against the positioning rod.

[0018] By adopting the above technical solution, a pressure block is provided on the first clamping block, which presses down on the positioning rod, thereby improving the stability of the limit.

[0019] Optionally, the first clamping block and the second clamping block are fixed by bolts.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. The cooling chamber and the sand removal hole are on a straight line, which reduces the dead angles during sand removal, making it easier to remove the molding sand from the cooling chamber and improving the efficiency and thoroughness of sand removal. After cleaning, the second cover is installed on the first cover to seal the sand removal hole and the cooling chamber.

[0022] 2. A first clamping block and a second clamping block are provided. The first clamping block and the second clamping block clamp the positioning seat and the positioning rod to initially fix the first cover and the second cover, so as to facilitate the subsequent welding and fixing of the first cover and the second cover. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of Example 1;

[0024] Figure 2 This is a structural schematic diagram of Example 2;

[0025] Figure 3 This is a schematic diagram of the limit component.

[0026] Explanation of reference numerals in the attached drawings: 1. First cover; 11. Cooling chamber; 12. Sand removal hole; 13. Positioning seat; 131. First positioning hole; 2. Second cover; 21. Positioning rod; 3. Limiting assembly; 31. First clamping block; 311. First locking groove; 312. Threaded hole; 32. Second clamping block; 321. Second locking block; 322. Pressure block; 323. Through hole; 33. Bolt. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0028] Example 1:

[0029] Embodiment 1 of this application discloses a pump cover that facilitates sand removal. (See also...) Figure 1 It includes a first cover 1 and a second cover 2. The first cover 1 has a cooling cavity 11 inside, and the end face of the first cover 1 has a sand removal hole 12 that communicates with the cooling cavity 11. The second cover 2 can be detachably installed on the first cover 1 to seal the sand removal hole 12.

[0030] Reference Figure 1 There are two sand removal holes 12. The two sand removal holes 12 are symmetrically arranged around the axis of the first cover 1. The sand removal holes 12 are arc-shaped and their corresponding axes are coaxial with the axis of the first cover 1. The position of the sand removal holes 12 corresponds to the position of the cooling cavity 11, and the width of the sand removal holes 12 is the same as the width of the cooling cavity 11.

[0031] Reference Figure 1 The side wall of the cooling chamber 11 away from the sand removal hole 12 is arc-shaped.

[0032] The implementation principle of a pump cover for easy sand removal in this application embodiment is as follows: the cooling chamber 11 and the sand removal hole 12 are on a straight line, reducing the dead angles that exist during sand removal, thereby facilitating the removal of molding sand from the cooling chamber 11, improving the efficiency and thoroughness of sand removal. After cleaning, the second cover 2 is installed on the first cover 1, thereby sealing the sand removal hole 12 and the cooling chamber 11.

[0033] Example 2:

[0034] The difference between Example 2 and Example 1 is that, referring to Figure 2 and Figure 3 The first cover 1 has a fixedly connected positioning seat 13 on its peripheral wall. There are two positioning seats 13, which are symmetrically arranged around the axis of the first cover 1. The positioning seat 13 has a first positioning hole 131 on its side near the second cover 2. The second cover 2 has a fixedly connected positioning rod 21 corresponding to the positioning seat 13. When the second cover 2 abuts against the end face of the first cover 1, the positioning rod 21 can be locked in the first positioning hole 131.

[0035] Reference Figure 2 and Figure 3 The first positioning hole 131 is rectangular, and the cross-section of the positioning rod 21 is rectangular to match the first positioning hole 131. The positioning seat 13 is provided with a limiting component 3 to limit the first positioning rod 21.

[0036] The limiting component 3 includes a first clamping block 31 and a second clamping block 32. The first clamping block 31 has a first locking groove 311 and the second clamping block 32 has a second locking groove. When the first clamping block 31 and the second clamping block 32 are spliced ​​together, the first locking groove 311 and the second locking groove can form a complete locking groove. The complete locking groove can be fitted onto the positioning seat 13 and the positioning rod 21.

[0037] The side of the positioning seat 13 away from the first positioning rod 21 is arc-shaped, and the bottom wall of the first locking groove 311 is an arc-shaped surface adapted to the positioning seat 13. The bottom wall of the second locking groove is fixedly connected to a pressure block 322. When the second locking groove is locked on the positioning seat 13, the pressure block 322 abuts against the positioning rod 21.

[0038] Both ends of the first clamping block 31 are provided with through holes 323, and both ends of the second clamping block 32 are provided with threaded holes 312. The first clamping block 31 is provided with bolts 33, which pass through the through holes 323 and are threadedly connected to the threaded holes 312 on the second clamping block 32.

[0039] The implementation principle of Embodiment 2 is as follows: A first clamping block 31 and a second clamping block 32 are provided. The positioning seat 13 and the positioning rod 21 are clamped by the first clamping block 31 and the second clamping block 32 to initially fix the first cover 1 and the second cover 2, thereby facilitating the subsequent welding and fixing of the first cover 1 and the second cover 2.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pump cover for easy sand removal, characterized in that: It includes a first cover (1) and a second cover (2). The first cover (1) has a cooling cavity (11) and a sand removal hole (12) connected to the cooling cavity (11) on its end face. The second cover (2) can be detachably installed on the first cover (1) to seal the sand removal hole (12).

2. The pump cover for easy sand removal according to claim 1, characterized in that: The sand removal hole (12) is arc-shaped, and the cross-section of the sand removal hole (12) is adapted to the cross-section of the cooling cavity (11) so that the width of the sand removal hole (12) is the same as the width of the cooling cavity (11).

3. The pump cover for easy sand removal according to claim 1, characterized in that: The side wall of the cooling chamber (11) away from the sand removal hole (12) is arc-shaped.

4. A pump cover for easy sand removal according to claim 1, characterized in that: The first cover (1) is provided with a positioning seat (13), the positioning seat (13) is provided with a first positioning hole (131), and the second cover (2) is provided with a positioning rod (21) for locking in the positioning hole.

5. A pump cover for easy sand removal according to claim 4, characterized in that: The first positioning hole (131) is rectangular, and the cross-section of the positioning rod (21) is rectangular and adapted to the first positioning hole (131). The positioning seat (13) is provided with a limiting component (3) to limit the first positioning rod (21).

6. A pump cover for easy sand removal according to claim 5, characterized in that: The limiting component (3) includes a first clamping block (31) and a second clamping block (32). The first clamping block (31) has a first locking groove (311), and the second clamping block (32) has a second locking groove. When the first clamping block (31) and the second clamping block (32) are spliced ​​together, the first locking groove (311) and the second locking hole are used for the positioning seat (13) and the positioning rod (21) to be locked.

7. A pump cover for easy sand removal according to claim 6, characterized in that: The bottom wall of the second locking slot is provided with a pressure block (322). When the second locking slot is locked on the positioning seat (13), the pressure block (322) abuts against the positioning rod (21).

8. A pump cover for easy sand removal according to claim 7, characterized in that: The first clamping block (31) and the second clamping block (32) are fixed by bolts (33).

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