Pre-expansion type rammer remover for liquid drainage valve seat of emulsion pump
The pre-expanded sleeve and hammer structure of the emulsion pump discharge valve seat hammer remover solve the problem of difficult removal of emulsion pump valve seats, improve removal efficiency and reduce maintenance costs.
Patent Information
- Application Number
- CN202422908532.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The existing emulsion pump valve seat is difficult to remove, resulting in low maintenance efficiency and high cost.
A pre-expanded emulsion pump drain valve seat hammer removal tool is used, which uses an internal expansion sleeve to clamp the inner hole of the drain valve seat and combines the impact force of the hammer to remove it.
It reduces the difficulty of removing the drain valve seat, improves the removal efficiency, reduces maintenance costs, and protects other pump components.
Smart Images
Figure CN223507112U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of maintenance tool technology, and in particular to a pre-expanded emulsion pump drain valve seat hammer remover. Background Technology
[0002] The valve seat of an emulsion pump is installed in a critical position on the pump head, such as inside the inlet chamber to work with the suction valve, or inside the outlet chamber to work with the outlet valve. When performing maintenance, the valve seat needs to be pulled out of either the inlet or outlet chamber; however, because it is submerged in either chamber, removal is very difficult and can easily damage other components of the pump head. Therefore, each removal requires significant manpower and resources, resulting in low maintenance efficiency. Utility Model Content
[0003] The purpose of this invention is to provide a pre-expanded emulsion pump drain valve seat hammer remover, which uses an internal expansion structure and a hammer structure to clamp and remove the drain valve seat, reducing the difficulty of removing the drain valve seat, improving the removal efficiency, and thus reducing maintenance costs.
[0004] To achieve the above objectives, this utility model provides a pre-expanded emulsion pump drain valve seat hammer removal device, including a pull rod, a hammer that slides up and down on the pull rod, and an inner expansion sleeve installed at the bottom of the pull rod and inserted into the inner hole of the drain valve seat; the pull rod is provided with a sliding stroke for the hammer to slide up and down, and the upper and lower ends of the sliding stroke are respectively provided with blocks; the hammer is slidably installed on the pull rod and located between the two blocks; the inner expansion sleeve clamps the inner hole of the drain valve seat by internal expansion.
[0005] With the above structure, the inner hole of the drain valve seat is clamped by the internal expansion sleeve, and then the drain valve seat is removed by the impact force of the hammer. This reduces the difficulty of removing the drain valve seat, and also ensures minimal interference and protection to other pump components during the removal process, improving removal efficiency and reducing maintenance costs.
[0006] Preferably, the inner expansion sleeve includes an expansion sleeve and an expansion core inserted into the inner cavity of the expansion sleeve; the upper end of the expansion sleeve is an adjusting seat, and the lower end is a petal-shaped expansion head that can be inserted into the inner hole of the drain valve seat; the bottom of the expansion core extends out of the petal-shaped expansion head and is fixed with a conical head, and the top end of the expansion core extending upward out of the adjusting seat is provided with an external thread, on which a nut is installed; when the conical head rises and enters the petal-shaped expansion head, it can expand the petal-shaped expansion head and support the inner hole of the drain valve seat; when the conical head descends, the petal-shaped expansion head retracts and can loosen the inner hole of the drain valve seat; the top of the expansion core is fixed to the bottom of the pull rod. Through this setting, by utilizing the upward movement of the taper, the petal-shaped expansion head undergoes elastic deformation, that is, its diameter increases, to support the inner hole of the drain valve seat, thereby facilitating and speeding up the clamping process and greatly improving the clamping efficiency.
[0007] Preferably, the outer circumferential surface of the expansion sleeve is provided with a threaded hole, which connects the inner cavity of the expansion sleeve to the outside. A positioning bolt is screwed into the threaded hole. A limit groove is provided on the expansion core corresponding to the positioning bolt. The limit groove is arranged vertically and its horizontal width is consistent with the diameter of the positioning bolt. The positioning bolt slides up and down along the limit groove. This design avoids relative rotation between the expansion core and the expansion sleeve, limiting their relative movement to only vertical movement.
[0008] Preferably, the hammer's outer surface is covered with an elastic layer. This design improves the hammer's feel.
[0009] Preferably, the expansion core and the inner hole of the adjusting seat are fitted with a clearance. This design prevents the expansion core from wobbling within the adjusting seat.
[0010] Preferably, the adjustment seat is equipped with a gripping area suitable for human hands. This design ensures ease of straightening.
[0011] Preferably, the outer surface of the adjustment seat located in the gripping area is covered with an elastic layer. This design improves the feel of the gripping area.
[0012] After adopting the above technical solution, the beneficial effects of this utility model are:
[0013] This utility model provides a pre-expanding emulsion pump drain valve seat hammer remover, which solves the technical problem of low efficiency in existing pre-expanding emulsion pump drain valve seat hammer removers. This utility model achieves clamping and removal of the drain valve seat through an internal expansion structure and a hammer structure, reducing the difficulty of drain valve seat removal, improving removal efficiency, and thus reducing maintenance costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a pre-expanded emulsion pump discharge valve seat hammer removal device according to the present invention;
[0015] Figure 2 yes Figure 1 A sectional view;
[0016] Figure 3 yes Figure 1 A schematic diagram of the structure of the central pull rod and the expansion core at its bottom;
[0017] Figure 4 yes Figure 1 A schematic diagram of the expansion sleeve structure.
[0018] In the diagram, 1 is the pull rod, 11 is the stop block, 2 is the hammer, 3 is the inner expansion sleeve, 31 is the expansion sleeve, 311 is the adjusting seat, 312 is the petal-shaped expansion head, 313 is the threaded hole, 314 is the positioning bolt, 32 is the expansion core, 321 is the conical head, 322 is the external thread, 323 is the nut, and 324 is the limiting groove. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] The orientations mentioned in this specification are based on the orientation of the pre-expanded emulsion pump discharge valve seat hammer remover of this utility model when it is working normally. It does not limit the orientation during storage and transportation, and only represents the relative positional relationship, not the absolute positional relationship.
[0021] like Figure 1 and Figure 2 As shown in the figure, a pre-expanded emulsion pump drain valve seat hammer remover includes a pull rod 1, a hammer 2 that slides up and down on the pull rod 1, and an inner expansion sleeve 3 that is installed at the bottom of the pull rod 1 and inserted into the inner hole of the drain valve seat.
[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the lever 1 is provided with a sliding stroke A for the hammer 2 to slide up and down, and the upper and lower ends of the sliding stroke A are respectively provided with a stop block 11; the hammer 2 is slidably mounted on the lever 1 and located between the two stop blocks 11. The hammer 2 can slide up and down within the sliding stroke A and strike the stop block 11 above it. The outer surface of the hammer 2 is covered with an elastic layer.
[0023] like Figure 1 , Figure 2 and Figure 4 As shown, the inner expansion sleeve 3 includes an expansion sleeve 31 and an expansion core 32 inserted into the inner cavity of the expansion sleeve 31; the upper end of the expansion sleeve 31 is an adjusting seat 311, and the lower end is a petal-shaped expansion head 312 that can be inserted into the inner hole of the drain valve seat; the bottom of the expansion core 32 extends out of the petal-shaped expansion head 312 and is fixed with a conical head 321, and the top of the core 32 extends upward out of the adjusting seat 311 and is provided with an external thread 322, on which a nut 323 is installed; when the conical head 321 rises and enters the petal-shaped expansion head 312, it can expand the petal-shaped expansion head 312 and support the inner hole of the drain valve seat; when the conical head 321 descends, the petal-shaped expansion head 312 retracts and can loosen the inner hole of the drain valve seat; the top of the expansion core 32 is fixed to the bottom of the pull rod 1.
[0024] To prevent the expansion core 32 from wobbling within the adjusting seat 311, the expansion core 32 is fitted with a clearance fit to the inner hole of the adjusting seat 311. This ensures that the expansion core 32 can move up and down within the adjusting seat 311 without hindering its movement, while also limiting its movement to prevent it from wobbling within the inner hole of the adjusting seat 311.
[0025] In use, a hammer is used to strike the top of the remover, causing the bottom petal-shaped expansion head 312 to fully enter the inner hole of the drain valve seat. The nut 323 is then tightened, pulling the expansion core 32 upwards slightly. The conical head 321 at the bottom of the expansion core 32 enters the petal-shaped expansion head 312. This upward movement of the conical head causes elastic deformation of the petal-shaped expansion head 312, increasing its diameter and supporting the inner hole of the drain valve seat; thus achieving internal expansion of the drain valve seat's inner hole. The drain valve seat is then removed using the impact force of the hammer 2. After removal, the drain valve seat can be removed by loosening the nut 323. This method effectively removes the drain valve seat, facilitating further maintenance and replacement, while also ensuring minimal interference and protection of other pump components during removal.
[0026] Furthermore, to prevent relative rotation between the expansion sleeve 31 and the expansion core 32 during the tightening or loosening process, a threaded hole 313 is provided on the outer circumferential surface of the expansion sleeve 31. The threaded hole 313 connects the inner cavity of the expansion sleeve 31 to the outside, and a positioning bolt 314 is screwed into the threaded hole 313. A limiting groove 324 is provided on the expansion core 32 corresponding to the positioning bolt 314. The limiting groove 324 is arranged in the vertical direction and its left and right width is consistent with the diameter of the positioning bolt 314. The positioning bolt 314 slides up and down along the limiting groove 324.
[0027] Furthermore, since the demolition tool needs to be held by hand when the hammer 2 is operated, a gripping area B suitable for human hand gripping is provided on the adjusting seat 311 to ensure the accuracy of the straightening. The outer surface of the gripping area on the adjusting seat 311 is covered with an elastic layer.
[0028] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.
Claims
1. A pre-expanded emulsion pump discharge valve seat hammer removal device, characterized in that: It includes a pull rod, a hammer that slides up and down on the pull rod, and an inner expansion sleeve installed at the bottom of the pull rod and inserted into the inner hole of the drain valve seat; The lever is provided with a sliding stroke for the hammer to slide up and down, and the upper and lower ends of the sliding stroke are respectively provided with blocks; The hammer is slidably mounted on the lever and located between the two stops; The internal expansion sleeve clamps the inner hole of the drain valve seat by internal expansion.
2. The pre-expanded emulsion pump discharge valve seat hammer remover according to claim 1, characterized in that: The inner expansion sleeve includes an expansion sleeve and an expansion core inserted into the inner cavity of the expansion sleeve; the upper end of the expansion sleeve is an adjustment seat, and the lower end is a petal-shaped expansion head that can be inserted into the inner hole of the drain valve seat; the bottom of the expansion core extends out of the petal-shaped expansion head and is fixed with a conical head, and its top extends upward out of the adjustment seat with an external thread, on which a nut is installed; When the conical head rises and enters the lobed expansion head, it can expand the lobed expansion head to support the inner hole of the drain valve seat; when the conical head descends, the lobed expansion head retracts to loosen the inner hole of the drain valve seat; the top of the expansion core is fixed to the bottom of the pull rod.
3. The pre-expanded emulsion pump discharge valve seat hammer remover according to claim 2, characterized in that: A threaded hole is provided on the outer circumferential surface of the expansion sleeve, the threaded hole connecting the inner cavity of the expansion sleeve to the outside, and a positioning bolt is screwed into the threaded hole; a limit groove is provided on the expansion core corresponding to the positioning bolt, the limit groove is arranged in the vertical direction and its left and right width is the same as the diameter of the positioning bolt; the positioning bolt slides up and down along the limit groove.
4. The pre-expanded emulsion pump discharge valve seat hammer remover according to claim 1, characterized in that: The hammer is covered with an elastic layer.
5. The pre-expanded emulsion pump discharge valve seat hammer removal device according to claim 2, characterized in that: The expansion core is fitted with the inner hole of the adjustment seat with a clearance.
6. The pre-expanded emulsion pump discharge valve seat hammer remover according to claim 2, characterized in that: The adjustment seat is provided with a gripping area suitable for human hands.
7. The pre-expanded emulsion pump discharge valve seat hammer remover according to claim 6, characterized in that: The outer surface of the adjustment seat located in the gripping area is covered with an elastic layer.