A split assembled diaphragm accumulator
Patent Information
- Application Number
- CN202522415598.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-14
AI Technical Summary
然而，现有的蓄能器壳体多采用整体式焊接结构，当内部隔膜损坏或需要更换时，整体式结构的蓄能器难以进行局部更换或维修，导致成本较高且维修困难
[0011]本实用新型是一种分体组装式的隔膜蓄能器，此种蓄能器主体相较于传统整体式焊接结构设定的隔膜蓄能器，第一缸盖、第二缸盖以及内部的隔膜能够进行分体式组装和拆解的可拆连接过程，方便对第一缸盖、第二缸盖以及隔膜进行清洗、检漏及其修补以及相应部件的更换等操作，提高此种分体组装式的隔膜蓄能器整体结构的可拆卸性和使用灵活性，适当降低使用成本和检修困难度，并且第二缸盖上第二连接部中槽沿上通过多组连接头穿设于隔膜的外环，同时结合第一缸盖上凸板的抵设作用以实现对隔膜进行固定的连接方式，能够有效降低隔膜于槽沿上出现移位甚至脱落的概率，进一步提高隔膜的连接稳定性和位置稳定性，另外，结合第一缸盖上凸板于第二缸盖内壁滑动而于槽沿上对隔膜的外环进行压设的连接方式，能够保证第一缸盖和第二缸盖之间的连接密封性，提高此种分体组装式的隔膜蓄能器的作用效果和使用稳定性。
Smart Images
Figure CN224919550U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of energy storage devices, specifically to a modular diaphragm energy storage device. Background Technology
[0002] Diaphragm accumulators, as an important component of hydraulic systems, are commonly used to store the energy of hydraulic oil and reduce pressure fluctuations in the hydraulic system. Common types include piston accumulators and bladder accumulators. Piston accumulators use the reciprocating motion of a piston within a cylinder to separate gas and liquid, achieving energy storage and release; bladder accumulators use an air bladder to separate gas and liquid. However, most existing accumulator housings use a one-piece welded structure. When the internal diaphragm is damaged or needs replacement, the one-piece structure makes partial replacement or repair difficult, resulting in high costs and maintenance difficulties. Utility Model Content
[0003] The purpose of this utility model is to provide a modular diaphragm accumulator. The main body of the accumulator can be detachably assembled and disassembled, which facilitates cleaning, leak detection and repair of the first cylinder head, second cylinder head and diaphragm, as well as replacement of corresponding components. This improves the detachability and flexibility of the overall structure of the modular diaphragm accumulator, appropriately reduces the cost of use and maintenance difficulty, and improves the effect and stability of use.
[0004] The technical solution adopted by this utility model to solve the above problems is:
[0005] A modular diaphragm accumulator includes a first cylinder head with a valve, a second cylinder head with a liquid outlet, and an accumulator body formed by a diaphragm disposed between the first and second cylinder heads. The first and second cylinder heads are detachably connected by a first connecting part, and the diaphragm is detachably connected within the second cylinder head by a second connecting part. The first connecting part includes two sets of outer edge plates with multiple sets of connecting holes respectively acting on the corresponding connecting end faces of the first and second cylinder heads, and a connector with connecting holes for fixing the two sets of outer edge plates. The second connecting part includes a groove edge disposed within the second cylinder head and multiple sets of connectors disposed on an outer ring around the diaphragm. The first cylinder head abuts against the top end face of the groove edge by a protrusion disposed at its bottom.
[0006] Preferably, a second convex plate is provided on the outer edge plate at one end of the second cylinder head, and an annular groove adapted to the second convex plate is formed between the outer edge plate at one end of the first cylinder head and the convex plate.
[0007] Preferably, a rubber ring is provided between the two sets of outer edge plates located on the first cylinder head and the second cylinder head, around the second convex plate, and the rubber ring has multiple sets of second connecting holes for the connecting parts to pass through.
[0008] Preferably, the first connecting part further includes a heat shrink sleeve acting on the periphery of the two sets of outer edge plates.
[0009] Preferably, the first cylinder head is further provided with multiple sets of connecting components. The connecting components include a support rod that acts on the first cylinder head, a connecting rod that is slidably disposed above the groove edge and within the protrusion plate and the support rod, and a connecting end that is detachably installed on the support rod. A compression spring that abuts against the top of the support rod is disposed inside the connecting end, and a third protrusion plate that acts on the connecting end is detachably connected to the top of the support rod.
[0010] Compared with the prior art, this utility model has the following advantages and effects:
[0011] This utility model relates to a modular diaphragm accumulator. Compared to traditional integral welded diaphragm accumulators, the main body of this accumulator allows for separate assembly and disassembly of the first cylinder head, second cylinder head, and internal diaphragm. This facilitates cleaning, leak detection, repair, and replacement of components, improving the overall detachability and flexibility of the modular diaphragm accumulator structure. It also appropriately reduces operating costs and maintenance difficulty. Furthermore, the second connecting section on the second cylinder head... Multiple sets of connectors are inserted into the outer ring of the diaphragm along the groove, and the diaphragm is fixed in place by the abutting action of the convex plate on the first cylinder head. This connection method effectively reduces the probability of the diaphragm shifting or even falling off on the groove edge, further improving the connection stability and positional stability of the diaphragm. In addition, the connection method of pressing the outer ring of the diaphragm on the groove edge by sliding the convex plate on the inner wall of the second cylinder head can ensure the connection sealing between the first cylinder head and the second cylinder head, improving the performance and operational stability of this type of split-assembly diaphragm accumulator. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of a modular diaphragm accumulator according to an embodiment of the present invention.
[0013] Figure 2-3 This is a structural disassembly diagram of the main body of the energy storage device according to an embodiment of this utility model.
[0014] Figure 4 This is an enlarged view of the structure of the first cylinder head and its connecting components according to an embodiment of the present invention.
[0015] Figure Numbers: Accumulator body 100, outer edge plate 101, connecting hole 1010, connector 102, first cylinder head 1, air valve 10, protruding plate 11, slot 111, annular groove 12, second cylinder head 2, liquid outlet 20, groove edge 21, connector 22, second protruding plate 23, diaphragm 3, outer ring 30, through hole 31, first connecting part 4, heat shrink sleeve 40, second connecting part 5, rubber ring 6, second connecting hole 60, connecting assembly 7, support rod 71, mounting hole 711, connecting rod 72, second slot 721, third protruding plate 722, connecting end 73, sliding groove 730, compression spring 74. Detailed Implementation
[0016] The present invention will now be described in detail with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.
[0017] See Figure 1-3 This embodiment relates to a split-assembly diaphragm 3 accumulator, including a first cylinder head 1 with a gas valve 10, a second cylinder head 2 with a liquid outlet 20, and an accumulator body 100 formed by a diaphragm 3 disposed between the first cylinder head 1 and the second cylinder head 2. The first cylinder head 1 and the second cylinder head 2 are detachably connected by a first connecting part 4, and the diaphragm 3 is detachably connected inside the second cylinder head 2 by a second connecting part 5. The first connecting part 4 includes two sets of outer edge plates 101 with multiple sets of connecting holes 1010 respectively acting on the corresponding connecting end faces of the first cylinder head 1 and the second cylinder head 2, and a connector 102 with connecting holes 1010 for fixing the two sets of outer edge plates 101. The second connecting part 5 includes a groove 21 disposed inside the second cylinder head 2 and multiple sets of connectors 22 disposed around the groove 21 and on the outer ring 30 disposed around the diaphragm 3. The first cylinder head 1 abuts against the top end face of the groove 21 through a protruding plate 11 disposed at the bottom.
[0018] Specifically in this embodiment, such as Figure 1 The overall structure of this modular diaphragm accumulator shown is combined with... Figure 2-3As shown, compared with the diaphragm 3 accumulator structure in the prior art, this accumulator body 100 differs in that it adopts a split structure. The first cylinder head 1 and the second cylinder head 2 are detachably connected through the first connecting part 4. The diaphragm 3 can be detachably connected to the second cylinder head 2 through the second connecting part 5. Specifically, the diaphragm 3 is installed by passing through multiple sets of through holes 31 with multiple sets of adapter connectors 22 on its outer ring 30 and placing it on the inner groove edge 21 of the second cylinder head 2. Then, the first cylinder head 1 is inserted into the second cylinder head 2. The protrusion 11 provided at one end of the first cylinder head 1 can be inserted along the groove edge 21 of the second cylinder head 2. The inner wall of the second cylinder head 2 slides against the surface. During sliding, multiple sets of connectors 22 can be inserted into the slots 111 on the protruding plate 11 for locking. The bottom wall of the protruding plate 11 can then abut against the outer ring 30 of the diaphragm 3 on the groove edge 21. Finally, the connector 102, which is provided as a threaded rod and nut, is inserted into the connecting holes 1010 on the two outer edge plates 101 to achieve locking and fixing between the first cylinder head 1 and the second cylinder head 2. The gas valve 10 and liquid outlet 20 respectively provided on the first cylinder head 1 and the second cylinder head 2 are then separated into two corresponding chambers by the diaphragm 3 for subsequent use. Compared to traditional diaphragm accumulators with an integral welded structure, this type of accumulator body 100 allows for separate assembly and disassembly of the first cylinder head 1, second cylinder head 2, and internal diaphragm 3. This facilitates cleaning, leak detection, repair, and replacement of components, improving the overall detachability and flexibility of the diaphragm 3 accumulator structure. It also appropriately reduces operating costs and maintenance difficulty. Furthermore, multiple sets of connectors 22 pass through the groove edge 21 of the second connecting part 5 on the second cylinder head 2, connecting to the diaphragm 3. The outer ring 30 of the diaphragm 3, combined with the abutting action of the protruding plate 11 on the first cylinder head 1, achieves a connection method for fixing the diaphragm 3. This effectively reduces the probability of the diaphragm 3 shifting or even falling off on the groove edge 21, further improving the connection stability and positional stability of the diaphragm 3. In addition, the connection method of pressing the outer ring 30 of the diaphragm 3 on the groove edge 21 by sliding the protruding plate 11 on the inner wall of the second cylinder head 2 can ensure the connection sealing between the first cylinder head 1 and the second cylinder head 2, improving the effect and operational stability of this type of split-assembly diaphragm 3 accumulator.
[0019] A second protruding plate 23 is provided on the outer edge plate 101 at one end of the second cylinder head 2, and an annular groove 12 adapted to the second protruding plate 23 is formed between the outer edge plate 101 and the protruding plate 11 at one end of the first cylinder head 1. Specifically, this can be combined with... Figure 2 and Figure 3As shown, when the first cylinder head 1 and the second cylinder head 2 are connected, a second protruding plate 23 is provided on the outer edge plate 101 of the corresponding end of the second cylinder head 2. This plate can be engaged in a matching annular groove 12 between the outer edge plate 101 of the corresponding end of the first cylinder head 1 and the protruding plate 11. Combined with the connection method in which the protruding plate 11 on the first cylinder head 1 slides along the inner wall of the second cylinder head 2 and abuts against the outer ring 30 of the diaphragm 3 on the groove edge 21, the connection effect and sealing performance between the first cylinder head 1 and the second cylinder head 2 can be further improved.
[0020] A rubber ring 6 is provided around the second protruding plate 23 between the two sets of outer edge plates 101 located on the first cylinder head 1 and the second cylinder head 2. The rubber ring 6 has multiple sets of second connecting holes 60 for the connector 102 to pass through. Specifically, the rubber ring 6 can be fitted around the second protruding plate 23 on the second cylinder head 2, with its multiple sets of second connecting holes 60 corresponding to the multiple sets of connecting holes 1010 on the outer edge plate 101. The thickness of the rubber ring 6 can be the same as the thickness of the outer ring 30 on the diaphragm 3, and the material of the rubber ring 6 can also be the same as the material of the diaphragm 3 and its outer ring 30. The height of the second protruding plate 23 on the outer edge plate 101 can be slightly greater than the thickness of the rubber ring 6 to facilitate stable placement of the rubber ring 6. The groove depth of the annular groove 12 is the same as the height of the second protruding plate 23 on the outer edge plate 101. The extension length of the protruding plate 11 on the first cylinder head 1 on the corresponding outer edge plate 101 can be set as follows: When the bottom of the 1st diaphragm 3 is abutted against the outer ring 30, the two sets of outer edge plates 101 are abutted against the corresponding wall surfaces at the upper and lower ends of the rubber ring 6. Then, with the connecting parts 102 passing through the connecting holes 1010 and the second connecting hole 60 respectively, the two sets of outer edge plates 101 at the upper and lower ends of the rubber ring 6 are tightly fixed. At the same time, the protruding plate 11 and the groove edge 21 are tightly fixed at the upper and lower ends of the outer ring 30 of the diaphragm 3. The second protruding plate 23 is then inserted into the ring groove 12 to an appropriate depth to complete the tight connection between the first cylinder head 1 and the second cylinder head 2. The addition of the rubber ring 6 can further improve the connection sealing and operational stability of this accumulator body 100. During assembly and connection, the deformation of the rubber ring 6 under the corresponding pressure can facilitate the judgment and timely tightening of the deformation of the outer ring 30 used to fix the diaphragm 3, thereby improving the operational stability during assembly and the functional stability of this accumulator body 100.
[0021] The first connecting part 4 also includes a heat shrink sleeve 40 acting on the outer periphery of the two sets of outer edge plates 101. Specifically, after the first cylinder head 1 and the second cylinder head 2 are stably connected, the heat shrink sleeve 40 is fitted on the outer periphery of the two sets of outer edge plates 101 according to the connection requirements and usage needs. At the same time, the heat shrink sleeve 40 is heated and shrinks to wrap around the outer periphery of the two sets of outer edge plates 101 in the heating process of heating equipment such as hot air gun. The addition of the heat shrink sleeve 40 can further improve the connection effect and internal sealing between the first cylinder head 1 and the second cylinder head 2, and improve the stability of the accumulator body 100. In addition, when it is necessary to disassemble the first cylinder head 1 and the second cylinder head 2, the heat shrink sleeve 40 is cut off and timely adjustments and replacements are made according to the changes in the connection effect during assembly and long-term use.
[0022] See Figure 4The first cylinder head 1 is also provided with multiple sets of connecting components 7. The connecting components 7 include a support rod 71 acting on the first cylinder head 1, a connecting rod 72 located above the groove edge 21 and slidably disposed within the protrusion plate 11 and the support rod 71, and a connecting end 73 detachably mounted on the support rod 71. A compression spring 74 is disposed inside the connecting end 73 and abuts against the top of the support rod 71. The top of the support rod 71 is also detachably connected to a third protrusion plate 722 that acts on the connecting end 73. Specifically, during installation, the connecting rod 72 slides through the mounting holes 711 opened inside the support rod 71 and the protrusion plate 11 on the first cylinder head 1. At the same time, the connecting rod 72 can be detachably mounted on the support rod 71 in the early stage of installation. During the connection process of the connecting end 73, a compression spring 74 can be placed inside the connecting end 73. When the connecting rod 72 is inserted into the connecting head 22, the second slot 721 at the connecting rod 72, which is adapted for the insertion of the third protrusion 722, corresponds to the sliding groove 730 on the connecting end 73 for the sliding of the third protrusion 722. This allows the third protrusion 722 to be inserted into the sliding groove 730 and then into the second slot 721, thus achieving a stable connection between the connecting rod 72 and the connecting end 73. Furthermore, a detachable connection process is achieved by rotating the connecting end 73 and the threaded structure at one end of the support rod 71. The connecting rod 72 is at the connecting end... Under the action of the internal compression spring 74, the connecting rod 72 can extend to a suitable length below the convex plate 11. Thus, when the first cylinder head 1 and the second cylinder head 2 are stably connected, the bottom of the connecting rod 72 can retract to a state flush with the bottom wall of the convex plate 11 under the abutment of the outer ring 30 of the diaphragm 3 on the groove edge 21. At this time, the corresponding position of the connecting rod 72 and its head end, the third convex plate 722, on the sliding groove 730 of the connecting end 73 indicates that the diaphragm 3 is stably connected to the inner and outer edges of the second cylinder head 2. A marker pen can be used to mark the corresponding position of the third convex head on the outer wall of the connecting end 73. Therefore, in actual use, if the outer ring 30 of the diaphragm 3 detaches from the groove edge 21, the connecting rod 72 at the corresponding position... 2. At this time, it is not resisted by the outer ring 30 and slides downward a suitable distance by resisting the groove edge 21 under the action of the compression spring 74. Combined with the position of the third protrusion marked on the outer wall of the connecting end 73 and the position change of the third protrusion 722 on the slide groove 730 when the above situation occurs, it is convenient for the user to judge the connection status of the diaphragm 3 and make timely adjustments. Furthermore, the setting of multiple sets of connecting components 7 and the corresponding multiple sets of connecting rods 72 resisting the outer ring 30 of the diaphragm 3 under the action of multiple sets of compression springs 74 can further improve the connection stability of the diaphragm 3 on the inner groove edge 21 of the second cylinder head 2, and improve the functional diversity, usage flexibility and applicability of this accumulator body 100.
[0023] The above description in this specification is merely illustrative of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined in the claims, all of which shall fall within the protection scope of this invention.
Claims
1. A modularly assembled diaphragm accumulator, characterized in that: The accumulator body comprises a first cylinder head with a valve, a second cylinder head with a liquid outlet, and a diaphragm between the first and second cylinder heads. The first and second cylinder heads are detachably connected by a first connecting part, and the diaphragm is detachably connected inside the second cylinder head by a second connecting part. The first connecting part includes two sets of outer edge plates with multiple sets of connecting holes respectively acting on the corresponding connecting end faces of the first and second cylinder heads, and a connector with connecting holes for fixing the two sets of outer edge plates. The second connecting part includes a groove edge provided inside the second cylinder head and multiple sets of connectors provided on the groove edge and on the outer ring provided around the diaphragm. The first cylinder head abuts against the top end face of the groove edge by a protrusion provided at the bottom.
2. The modular diaphragm accumulator according to claim 1, characterized in that: A second protruding plate is provided on the outer edge plate at one end of the second cylinder head, and an annular groove adapted to the second protruding plate is provided between the outer edge plate at one end of the first cylinder head and the protruding plate.
3. The modular diaphragm accumulator according to claim 2, characterized in that: A rubber ring is also provided between the two sets of outer edge plates located on the first cylinder head and the second cylinder head, around the second convex plate. The rubber ring has multiple sets of second connecting holes for the connecting parts to pass through.
4. The modular diaphragm accumulator according to claim 1, characterized in that: The first connecting part also includes a heat shrink sleeve acting on the periphery of the two sets of outer edge plates.
5. The modular diaphragm accumulator according to claim 1, characterized in that: The first cylinder head is also provided with multiple sets of connecting components. The connecting components include a support rod that acts on the first cylinder head, a connecting rod that is slidably disposed above the groove edge and within the protrusion plate and the support rod, and a connecting end that is detachably installed on the support rod. A compression spring that abuts against the top of the support rod is provided inside the connecting end, and a third protrusion plate that acts on the connecting end is detachably connected to the top of the support rod.