Filling pump with piston easy to disassemble and assemble
By introducing a connecting disc and clamp structure into the filling pump, the problem of inconvenient disassembly and assembly of the piston and shaft connection is solved, achieving easy disassembly and assembly of the piston and stable connection, thus improving the maintenance efficiency of the equipment.
Patent Information
- Application Number
- CN202520866149.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-05-06
AI Technical Summary
The connection between the piston and shaft in the existing filling pump is not convenient for disassembly and assembly. Welding is stable but not easy to replace. Bolt connection has a single stress point and is prone to breakage, which affects work efficiency.
The system employs a connecting disc and clamp structure. Arc-shaped clamp one and arc-shaped clamp two are respectively clamped on both sides of connecting disc one and connecting disc two. The clamps restrict the connecting disc, and the piston is easily disassembled and assembled by bolt connection.
This enables convenient connection and disassembly of the piston and shaft, improving equipment maintenance efficiency and reliability, and avoiding bolt breakage issues.
Smart Images

Figure CN223794314U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of filling pump technology, and in particular relates to a filling pump with an easily disassembled piston. Background Technology
[0002] A filling pump is a device that uses pressurization or mechanical action to transport or fill media. It is mainly divided into two categories: liquid filling pumps and gas filling pumps. Its core function is to transfer media (liquid or gas) from a source container to a target container, achieving the required pressure or volume.
[0003] The problem with the existing technology is that the connection between the piston and the pressure shaft in a conventional filling pump is usually welded. This type of connection is relatively stable, but it is not convenient to disassemble and replace. Another connection method is to simply connect with bolts. This connection has a single stress point, which may cause the bolts to break and affect work efficiency. Utility Model Content
[0004] The purpose of this invention is to solve the problems in the prior art by proposing a filling pump with an easily disassembled piston.
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is: a filling pump with an easily disassembled piston, including a rotating shaft and a piston installed below the rotating shaft, wherein a connecting shaft is installed on the piston, and further including: a connecting structure installed between the connecting shaft and the rotating shaft;
[0006] The connection structure includes:
[0007] A connecting plate 1, the top of which is connected to a connecting sleeve 1, which is fixedly connected to the bottom of the rotating shaft;
[0008] Connecting disk two, the bottom end of which is connected to connecting sleeve two, which is fixedly connected to the top end of connecting shaft;
[0009] And clamps installed between connecting plate one and connecting plate two.
[0010] Preferably, the clamp component includes an arc-shaped clamp one and an arc-shaped clamp two, and the rear ends of the arc-shaped clamp one and the arc-shaped clamp two are fixedly connected to a support shaft.
[0011] Preferably, a connecting member is provided between the first arc-shaped clamp and the second arc-shaped clamp, and both ends of the connecting member are rotatably connected to the outer wall of the support shaft.
[0012] Preferably, both the front end of the first arc-shaped clamp and the front end of the second arc-shaped clamp are fixedly connected to a convex plate, and each convex plate has a through hole for bolts to pass through and fix.
[0013] Preferably, the top and bottom ends of the convex plate at the front end of the arc-shaped clamp are fixedly connected to a clamping plate, and a protrusion is fixedly connected to the inner side of the end of the clamping plate away from the convex plate.
[0014] Preferably, the bottom of the connecting disk is provided with a plurality of limiting blocks, and the plurality of limiting blocks are distributed in a ring array.
[0015] Preferably, the outer periphery of the connecting disk has multiple limiting slots, which are arranged in a ring array.
[0016] Preferably, the limiting plug corresponds to the limiting slot, and the outer wall of the limiting plug is slidably connected to the inner wall of the limiting slot.
[0017] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:
[0018] This filling pump with an easily disassembled piston uses two arc-shaped clamps, one and two, to clamp the connecting discs on both sides, making the connection convenient. When disassembly is required, the clamps can be removed by unscrewing the bolts. Attached Figure Description
[0019] In the attached diagram:
[0020] Figure 1 This is a front view of a filling pump with an easily detachable piston, as proposed in this utility model.
[0021] Figure 2 This invention proposes a filling pump with an easily detachable piston. Figure 1 Exploded view diagram;
[0022] Figure 3 A front view of the connecting sleeve of a filling pump with an easily detachable piston, as proposed in this utility model;
[0023] Figure 4 This utility model proposes a filling pump with an easily detachable piston. Figure 3 A schematic diagram of the decomposition process;
[0024] Figure 5 This utility model proposes a filling pump with an easily detachable piston. Figure 4 Rear view.
[0025] In the diagram: 1. Piston; 101. Connecting shaft; 2. Rotating shaft; 301. Connecting sleeve one; 302. Connecting disc one; 303. Connecting sleeve two; 304. Connecting disc two; 305. Restricting insert; 306. Restricting slot; 4. Clamping parts; 401. Arc-shaped clamp one; 402. Arc-shaped clamp two; 403. Support shaft; 404. Connecting parts; 501. Protruding plate; 502. Clamping plate; 503. Protrusion; 504. Through hole. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.
[0027] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0028] In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] Example 1: Refer to Figure 1 - Figure 5 A filling pump with an easily disassembled piston includes a rotating shaft 2 and a piston 1 installed below the rotating shaft 2. A connecting shaft 101 is installed on the piston 1. The pump also includes a connecting structure installed between the connecting shaft 101 and the rotating shaft 2.
[0030] The connection structure includes: a first connecting plate 302, with a first connecting sleeve 301 connected to the top of the first connecting plate 302, and the first connecting sleeve 301 being fixedly connected to the bottom of the rotating shaft 2; a second connecting plate 304, with a second connecting sleeve 303 connected to the bottom of the second connecting plate 304, and the second connecting sleeve 303 being fixedly connected to the top of the connecting shaft 101; and a clamp 4 installed between the first connecting plate 302 and the second connecting plate 304.
[0031] Working principle: First, connect the connecting sleeve 301 at the top of the connecting disc 302 to the bottom of the rotating shaft 2. Then, connect the connecting sleeve 303 at the bottom of the connecting disc 304 to the top of the connecting shaft 101 of the piston 1. Finally, use clamp 4 to bind the connecting disc 302 and the connecting disc 304 together, making the connection convenient. When disassembly or assembly is required, simply remove clamp 4.
[0032] Specifically: The clamp component 4 includes an arc-shaped clamp one 401 and an arc-shaped clamp two 402, and the rear ends of the arc-shaped clamp one 401 and the arc-shaped clamp two 402 are both fixedly connected to a support shaft 403.
[0033] A connector 404 is provided between the arc-shaped clamp 401 and the arc-shaped clamp 402, and both ends of the connector 404 are rotatably connected to the outer wall of the support shaft 403.
[0034] Both the front end of the arc-shaped clamp 1 401 and the front end of the arc-shaped clamp 2 402 are fixedly connected to a protruding plate 501. The protruding plate 501 is provided with a through hole 504 for bolts to pass through and fix it.
[0035] First, fix the connecting sleeve 301 at the top of the connecting disc 302 to the bottom of the rotating shaft 2. Then, fix the connecting sleeve 303 at the bottom of the connecting disc 304 to the top of the connecting shaft 101 of the piston 1. Next, clamp the arc-shaped clamp 401 on one side of the connecting disc 302 and the connecting disc 304, and clamp the arc-shaped clamp 402 on the other side of the connecting disc 302 and the connecting disc 304. Fix the front ends of the arc-shaped clamp 401 and the arc-shaped clamp 402 together by passing bolts through the through hole 504. This restricts the connecting disc 302 and the connecting disc 304 together, making the connection convenient. When disassembly is required, the clamp 4 can be removed by unscrewing the bolts.
[0036] Example 2: Basically the same as Example 1, but further: Refer to Figure 1 - Figure 5 A filling pump with an easily disassembled piston, wherein the top and bottom ends of the convex plate 501 at the front end of the arc-shaped clamp 402 are fixedly connected to the clamp plate 502, and the inner side of the end of the clamp plate 502 away from the convex plate 501 is fixedly connected to the protrusion 503.
[0037] In this utility model, the connecting sleeve 301 at the top of the connecting disc 302 is first fixedly connected to the bottom of the rotating shaft 2, and the connecting sleeve 303 at the bottom of the connecting disc 304 is fixedly connected to the top of the connecting shaft 101 of the piston 1. Then, the arc-shaped clamp 401 of the clamp 4 is clamped on one side of the connecting disc 302 and the connecting disc 304, and the arc-shaped clamp 402 is clamped on the other side of the connecting disc 302 and the connecting disc 304. The protruding plates 501 at the front end of the arc-shaped clamp 401 and the arc-shaped clamp 402 are closed and in contact. When closed, the protrusion 503 is raised and falls after passing through the protruding plate 501 of the arc-shaped clamp 401, which restricts it and facilitates the subsequent bolt installation.
[0038] Then, the front ends of the arc-shaped clamp 401 and the arc-shaped clamp 402 are fixed together by passing the bolt through the through hole 504; thereby restricting the connecting plate 302 and the connecting plate 304 together, making the connection convenient. When disassembly is required, the clamp part 4 can be removed by unscrewing the bolt and prying open the protrusion 503.
[0039] Example 3: Basically the same as Example 2, but further: Refer to Figure 1 - Figure 5 A filling pump with an easily detachable piston has multiple limiting blocks 305 at the bottom of the connecting disc 302, which are arranged in a ring array.
[0040] The outer periphery of the connecting disk 2 304 has multiple limiting slots 306, which are arranged in a ring array.
[0041] The limiting plug 305 corresponds to the limiting slot 306, and the outer wall of the limiting plug 305 is slidably connected to the inner wall of the limiting slot 306. The connection between the limiting plug 305 and the limiting slot 306 improves the synchronization between the connecting disk 1 302 and the connecting disk 2 304.
[0042] In this utility model, the connecting sleeve 301 at the top of the connecting disc 302 is first fixedly connected to the bottom of the rotating shaft 2, and the connecting sleeve 303 at the bottom of the connecting disc 304 is fixedly connected to the top of the connecting shaft 101 of the piston 1. Then, the arc-shaped clamp 401 of the clamp 4 is clamped on one side of the connecting disc 302 and the connecting disc 304, and the arc-shaped clamp 402 is clamped on the other side of the connecting disc 302 and the connecting disc 304. The protruding plates 501 at the front end of the arc-shaped clamp 401 and the arc-shaped clamp 402 are closed and in contact. When closed, the protrusion 503 is raised and falls after passing through the protruding plate 501 of the arc-shaped clamp 401, which restricts it and facilitates the subsequent bolt installation.
[0043] Then, the front ends of the arc-shaped clamp 401 and the arc-shaped clamp 402 are fixed together by passing the bolt through the through hole 504; thereby restricting the connecting plate 302 and the connecting plate 304 together, making the connection convenient. When disassembly is required, the clamp part 4 can be removed by unscrewing the bolt and prying open the protrusion 503.
[0044] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model. These are all equivalent modifications and improvements made to the above embodiments based on the essential technology of this utility model, and all of these fall within the protection scope of this utility model.
Claims
1. A filling pump with an easily detachable piston, comprising a rotating shaft (2) and a piston (1) mounted below the rotating shaft (2), wherein a connecting shaft (101) is mounted on the piston (1), characterized in that, Also includes: The connection structure installed between the connecting shaft (101) and the rotating shaft (2); The connection structure includes: A connecting plate (302) is provided, and a connecting sleeve (301) is connected to the top of the connecting plate (302). The connecting sleeve (301) is fixedly connected to the bottom of the rotating shaft (2). Connecting disk two (304), the bottom end of which is connected to connecting sleeve two (303), and the connecting sleeve two (303) is fixedly connected to the top end of connecting shaft (101); And a clamp (4) installed between connecting plate one (302) and connecting plate two (304).
2. A filling pump with an easily detachable piston according to claim 1, characterized in that, The clamp component (4) includes an arc-shaped clamp one (401) and an arc-shaped clamp two (402), and a support shaft (403) is fixedly connected to the rear end of the arc-shaped clamp one (401) and the rear end of the arc-shaped clamp two (402).
3. A filling pump with an easily disassembled piston according to claim 2, characterized in that, A connector (404) is provided between the first arc-shaped clamp (401) and the second arc-shaped clamp (402), and both ends of the connector (404) are rotatably connected to the outer wall of the support shaft (403).
4. A filling pump with an easily detachable piston according to claim 3, characterized in that, Both the front end of the first arc-shaped clamp (401) and the front end of the second arc-shaped clamp (402) are fixedly connected to a protruding plate (501), and each protruding plate (501) has a through hole (504) for bolts to pass through and fix.
5. A filling pump with an easily detachable piston according to claim 4, characterized in that, The top and bottom ends of the convex plate (501) at the front end of the arc-shaped clamp (402) are fixedly connected to the clamp plate (502), and the inner side of the clamp plate (502) away from the convex plate (501) is fixedly connected to the protrusion (503).
6. A filling pump with an easily detachable piston according to claim 5, characterized in that, The bottom of the connecting disk 1 (302) is provided with a plurality of limiting blocks (305), and the plurality of limiting blocks (305) are arranged in a ring array.
7. A filling pump with an easily detachable piston according to claim 6, characterized in that, The connecting disk 2 (304) has multiple limiting slots (306) on its periphery, and the multiple limiting slots (306) are arranged in a ring array.
8. A filling pump with an easily detachable piston according to claim 7, characterized in that, The limiting plug (305) corresponds to the limiting slot (306), and the outer wall of the limiting plug (305) is slidably connected to the inner wall of the limiting slot (306).