Mechanical diaphragm pump regulating locking device
By designing a mechanical diaphragm pump regulating locking device with locking mechanism and sealing components, the problem of easy loosening of the locking structure in the prior art has been solved, realizing stable operation of the diaphragm pump and efficient fluid transportation, improving production continuity and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LEIDE XIPU INTELLIGENT TECH CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-06-26
AI Technical Summary
The adjustment and locking structure of existing mechanical diaphragm pumps is prone to loosening under high-frequency reciprocating motion, which can cause the diaphragm stroke or valve opening to deviate, resulting in flow fluctuations and pressure instability, affecting production continuity.
A mechanical diaphragm pump regulating and locking device including a locking mechanism was designed. Stable locking is achieved through the rotation structure of locking parts, gaskets, locking rods and fixing bolts. Combined with sealing components, pads, exhaust valves and moisture-proof cotton, the stability and sealing of the components are ensured under vibration conditions.
It effectively prevents the locking components from loosening, ensures the stability of diaphragm stroke and valve opening, improves the stability of flow and pressure, enhances the working efficiency and reliability of mechanical diaphragm pumps, reduces fluid leakage and component wear, and extends service life.
Smart Images

Figure CN224413830U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of mechanical diaphragm pumps, and in particular to a mechanical diaphragm pump adjustment and locking device. Background Technology
[0002] A mechanical diaphragm pump is a positive displacement reciprocating pump. Its core working principle is to drive an elastic diaphragm to reciprocate through a mechanical transmission mechanism, thereby changing the internal volume of the pump chamber. The pressure difference generated by the volume change is used to achieve the intake and discharge of fluid, and finally complete the fluid transportation. In order to adapt to the fluid transportation needs under different working conditions, the core components inside the pump body need to be adjusted through an adjustment device.
[0003] Currently, most existing mechanical diaphragm pumps have insufficient reliability in their adjustment and locking structures after adjustment. Existing adjustment devices often use a single bolt tightening or simple clamp fixing. Under the long-term high-frequency reciprocating vibration conditions of the pump body, the locking components are prone to loosening. For example, the gap between the adjusting screw and the positioning seat will gradually increase with vibration, causing the set diaphragm stroke or valve opening to deviate, which in turn leads to problems such as flow fluctuation and pressure instability. In severe cases, it may even require shutdown and recalibration, which greatly reduces the continuity of production. Utility Model Content
[0004] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.
[0005] Therefore, one objective of this utility model is to provide a mechanical diaphragm pump adjustment and locking device. Through the locking mechanism, the adjustment device is stably locked, avoiding the problem of loosening of the locking components under long-term high-frequency reciprocating vibration conditions. This ensures the stability of the diaphragm stroke or valve opening, thereby ensuring the stability of flow rate and pressure, and improving the working efficiency and reliability of the mechanical diaphragm pump.
[0006] To achieve the above objectives, the first aspect of this utility model provides a mechanical diaphragm pump adjustment and locking device, comprising: a pump body, a water pipe, an adjustment device, and a locking mechanism. The water pipe is installed outside the pump body, the adjustment device is installed on the outer wall of the pump body, and the locking mechanism includes a locking element, a gasket, a locking rod, a rotating shaft, and a fixing bolt. The locking element is sleeved on the outer wall of the adjustment device, the gasket is installed on the outer wall of the locking element, the locking rod is installed on the outer wall of the gasket, the rotating shaft is installed inside the locking rod, and the locking rod and the rotating shaft form a rotating structure. The fixing bolt passes through the locking element and the gasket and is connected to the locking rod.
[0007] In addition, the mechanical diaphragm pump adjustment and locking device proposed above according to this utility model may also have the following additional technical features:
[0008] Specifically, the water pipe is equipped with a sealing assembly, which includes a fixed shell, a connecting shell, a sealing plate, a fixed plate, a sleeve plate, a sealing ring, a sealing ring, and a fixing ring. The fixed shell is installed inside the water pipe, the connecting shell is installed inside the fixed shell, the sealing plate is fitted on the outer wall of the connecting shell, the fixed plate is fitted on the outside of the connecting shell, the sleeve plate is fitted on the outside of the fixed shell, the sealing ring is fitted on the outer wall of the sleeve plate, the sealing ring is fitted on the outer wall of the sleeve plate, and the fixing ring is installed on the inner wall of the sleeve plate.
[0009] Specifically, a pad is fitted on the outer wall of the adjusting device.
[0010] Specifically, the outer wall of the fixed shell is threaded with connecting bolts.
[0011] Specifically, an exhaust valve is installed on the pump body.
[0012] Specifically, moisture-proof cotton is installed at the bottom of the pump body.
[0013] Compared with existing technologies, this utility model has the following beneficial effects: The mechanical diaphragm pump regulating and locking device of this utility model, through its locking mechanism, achieves stable locking of the regulating device, avoiding the problem of loosening of the locking components under long-term high-frequency reciprocating vibration conditions. This ensures the stability of the diaphragm stroke or valve opening, thereby ensuring the stability of flow rate and pressure, and improving the working efficiency and reliability of the mechanical diaphragm pump. Simultaneously, by setting a sealing component, the sealing performance between the water pipe and the pump body is effectively improved, avoiding fluid leakage and further enhancing the working effect of the mechanical diaphragm pump. Furthermore, by setting components such as gaskets, air vents, and moisture-proof cotton, the stability and service life of the mechanical diaphragm pump are further improved.
[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0016] Figure 1 This is a schematic diagram of a mechanical diaphragm pump adjustment and locking device according to an embodiment of the present invention;
[0017] Figure 2 This is a schematic diagram of the sealing assembly structure of a mechanical diaphragm pump adjusting and locking device according to an embodiment of the present invention;
[0018] Figure 3 This is a schematic diagram of the locking mechanism of a mechanical diaphragm pump adjusting locking device according to an embodiment of the present invention;
[0019] Figure 4 A mechanical diaphragm pump adjustment and locking device according to one embodiment of the present invention. Figure 2 Enlarged structural diagram at point A in the middle.
[0020] Reference numerals in the attached drawings: 1. Pump body; 2. Water pipe; 3. Adjusting device; 4. Air vent valve; 5. Moisture-proof cotton; 6. Locking mechanism; 61. Pad; 62. Locking element; 63. Gasket; 64. Locking rod; 65. Rotating shaft; 66. Fixing bolt; 7. Sealing assembly; 71. Fixing shell; 72. Connecting shell; 73. Sealing plate; 74. Fixing plate; 75. Sleeve plate; 76. Sealing ring; 77. Sealing ring; 78. Fixing ring; 8. Connecting bolt. Detailed Implementation
[0021] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0022] The following describes a mechanical diaphragm pump adjustment and locking device according to an embodiment of the present invention with reference to the accompanying drawings.
[0023] like Figures 1-4 As shown in the figure, a mechanical diaphragm pump adjustment and locking device according to an embodiment of the present invention includes: a pump body 1, a water pipe 2, an adjustment device 3, and a locking mechanism 6.
[0024] Water pipe 2 is installed on the outside of pump body 1, adjusting device 3 is installed on the outer wall of pump body 1, and locking mechanism 6 includes locking part 62, gasket 63, locking rod 64, rotating shaft 65 and fixing bolt 66.
[0025] The locking element 62 is sleeved on the outer wall of the adjusting device 3, the gasket 63 is installed on the outer wall of the locking element 62, the locking rod 64 is installed on the outer wall of the gasket 63, the rotating shaft 65 is installed inside the locking rod 64, and the locking rod 64 and the rotating shaft 65 form a rotating structure. The fixing bolt 66 passes through the locking element 62 and the gasket 63 and is connected to the locking rod 64.
[0026] Specifically, when it is necessary to lock the adjusting device 3, firstly, the locking lever 64 is moved. The locking lever 64 rotates under the action of the rotating shaft 65, so that one end of the locking lever 64 is in contact with the outer wall of the adjusting device 3. Then, the fixing bolt 66 is tightened. During the tightening process, the fixing bolt 66 pushes the locking part 62 and the washer 63 to move towards the adjusting device 3 until the washer 63 is in close contact with the outer wall of the adjusting device 3. At this time, under the thrust of the fixing bolt 66, the locking lever 64 firmly locks the adjusting device 3, effectively preventing the adjusting device 3 from loosening under long-term high-frequency reciprocating vibration conditions, and ensuring the stable operation of the mechanical diaphragm pump.
[0027] In one embodiment of this application, such as Figure 2 As shown, a sealing component 7 is installed inside the water pipe 2.
[0028] The sealing assembly 7 includes a fixed housing 71, a connecting housing 72, a sealing plate 73, a fixing plate 74, a sleeve 75, a sealing ring 76, a sealing ring 77, and a fixing ring 78.
[0029] The fixed shell 71 is installed inside the water pipe 2, the connecting shell 72 is installed inside the fixed shell 71, the sealing plate 73 is sleeved on the outer wall of the connecting shell 72, the fixed plate 74 is sleeved on the outside of the connecting shell 72, the sleeve plate 75 is sleeved on the outside of the fixed shell 71, the sealing ring 76 is sleeved on the outer wall of the sleeve plate 75, the sealing ring 77 is sleeved on the outer wall of the sleeve plate 75, and the fixing ring 78 is installed on the inner wall of the sleeve plate 75.
[0030] Specifically, the sealing ring 76 and sealing ring 77 effectively improve the sealing performance between the water pipe 2 and the fixed housing 71, preventing fluid leakage during transportation and ensuring the continuity and stability of fluid delivery. Simultaneously, the installation of the fixing ring 78 further strengthens the connection between the sleeve 75 and the fixed housing 71, making the overall structure of the sealing assembly 7 more robust and reliable. During use, even when the water pipe 2 is subjected to high fluid pressure, the sealing assembly 7 maintains a good sealing effect, ensuring the normal operation of the mechanical diaphragm pump.
[0031] In one embodiment of this application, such as Figure 3 As shown, the outer wall of the adjusting device 3 is fitted with a pad 61.
[0032] Understandably, the pad 61 effectively increases the contact area between the adjusting device 3 and the outer wall of the pump body 1, and disperses the pressure generated by the locking mechanism 6 on the adjusting device 3, thereby avoiding excessive local pressure on the adjusting device 3 during the locking process and protecting the structural integrity of the adjusting device 3.
[0033] In one embodiment of this application, such as Figure 2 and Figure 4As shown, the outer wall of the fixed shell 71 is threaded with connecting bolts 8.
[0034] Understandably, by setting the connecting bolt 8, the connection between the sealing component 7 and the water pipe 2 is made more secure and reliable, avoiding the situation where the sealing component 7 becomes loose or falls off due to factors such as fluid pressure or vibration during use, and further ensuring the sealing performance and stability of the mechanical diaphragm pump.
[0035] In one embodiment of this application, such as Figure 1 As shown, an exhaust valve 4 is installed on the pump body 1.
[0036] Understandably, the exhaust valve 4 is designed to facilitate the timely discharge of air from inside the pump body 1 during the operation of the mechanical diaphragm pump, preventing air accumulation from affecting the normal operation of the pump body.
[0037] In one embodiment of this application, such as Figure 1 As shown, a moisture-proof cotton 5 is installed at the bottom of the pump body 1.
[0038] Understandably, the moisture-proof cotton 5 effectively isolates the moisture between the bottom of the pump body 1 and the ground, preventing rust or damage to the bottom of the pump body 1 caused by moisture erosion, and extending the service life of the mechanical diaphragm pump.
[0039] Working Principle: In operation, first connect the water pipe 2 to the pump body 1. The sealing component 7 ensures a good seal at the connection between the water pipe 2 and the pump body 1. Then, adjust the core components inside the pump body 1 using the adjusting device 3 to achieve the desired fluid delivery effect. After adjustment, lock the adjusting device 3 using the locking mechanism 6 to ensure it does not loosen under the long-term high-frequency reciprocating vibration of the pump body 1. Specifically, move the locking rod 64 so that one end fits against the outer wall of the adjusting device 3, then tighten the fixing bolt 66. The fixing bolt 66 pushes the locking component 62 and the gasket 63 towards the adjusting device 3 until the gasket 63 is tightly fitted against the outer wall of the adjusting device 3. At this point, the locking rod 64, under the thrust of the fixing bolt 66, firmly locks the adjusting device 3. During the operation of the mechanical diaphragm pump, the exhaust valve 4 facilitates the timely discharge of air from inside the pump body 1, preventing air accumulation from affecting the normal operation of the pump. Meanwhile, the moisture-proof cotton 5 effectively isolates the moisture between the bottom of the pump body 1 and the ground, preventing rust or damage to the bottom of the pump body 1 caused by moisture erosion, and extending the service life of the mechanical diaphragm pump.
[0040] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A mechanical diaphragm pump adjustment and locking device, characterized in that, include: The pump body (1), water pipe (2), adjusting device (3), and locking mechanism (6) are provided. The water pipe (2) is installed on the outside of the pump body (1), and the adjusting device (3) is installed on the outer wall of the pump body (1). The locking mechanism (6) includes a locking member (62), a gasket (63), a locking rod (64), a rotating shaft (65), and a fixing bolt (66). The locking member (62) is sleeved on the outer wall of the adjusting device (3), the gasket (63) is installed on the outer wall of the locking member (62), the locking rod (64) is installed on the outer wall of the gasket (63), the rotating shaft (65) is installed inside the locking rod (64), and the locking rod (64) and the rotating shaft (65) form a rotating structure. The fixing bolt (66) passes through the locking member (62) and the gasket (63) and is connected to the locking rod (64).
2. The mechanical diaphragm pump adjustment and locking device according to claim 1, characterized in that, The water pipe (2) is provided with a sealing assembly (7). The sealing assembly (7) includes a fixed shell (71), a connecting shell (72), a sealing plate (73), a fixing plate (74), a sleeve plate (75), a sealing ring (76), a sealing ring (77), and a fixing ring (78). The fixed shell (71) is installed inside the water pipe (2). The connecting shell (72) is installed inside the fixed shell (71). The sealing plate (73) is sleeved on the outer wall of the connecting shell (72). The fixing plate (74) is sleeved on the outside of the connecting shell (72). The sleeve plate (75) is sleeved on the outside of the fixed shell (71). The sealing ring (76) is sleeved on the outer wall of the sleeve plate (75). The sealing ring (77) is sleeved on the outer wall of the sleeve plate (75). The fixing ring (78) is installed on the inner wall of the sleeve plate (75).
3. The mechanical diaphragm pump adjustment and locking device according to claim 1, characterized in that, The outer wall of the adjusting device (3) is fitted with a pad (61).
4. The mechanical diaphragm pump adjustment and locking device according to claim 2, characterized in that, The outer wall of the fixed shell (71) is threaded with connecting bolts (8).
5. The mechanical diaphragm pump adjustment and locking device according to claim 1, characterized in that, An exhaust valve (4) is installed on the pump body (1).
6. The mechanical diaphragm pump adjustment and locking device according to claim 1, characterized in that, Moisture-proof cotton (5) is installed at the bottom of the pump body (1).