Pressure-adjustable pressure maintaining device

Abstract

The pressure-adjustable pressure maintaining device comprises a main body, a connecting mechanism and a cooling mechanism, the connecting mechanism comprises a first mounting pipe, a fixing sleeve, an external connecting pipe, a second mounting pipe and a sealing assembly, and the sealing assembly comprises a first sealing gasket, a second sealing gasket and a sliding frame. The cooling mechanism comprises a heat dissipation frame, a fan, a first spring, a fixing block and a connecting column, under the mutual cooperation effect of the mechanisms, the device uses interface design modularization and standardization, gives consideration to rapid butt joint, can adapt to various pipeline types, is convenient to operate, reduces the problem of difficulty in manual installation, and in addition, improves the production efficiency. The multi-sealing structure of the device ensures no leakage, the self-adaptive sealing design enables the connection to be more stable, and finally, the device can effectively reduce the running temperature of the main body and improve the running stability of the main body.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure systems, in particular to a pressure-adjustable pressure-maintaining device. Background Art

[0002] The pressure-adjustable pressure-maintaining device is a device that can realize the pressure maintaining function in a hydraulic or pneumatic system and can adjust the pressure as needed.

[0003] First, when installing the device, each connection needs to be made using threads or welding, which is time-consuming and labor-intensive, and highly dependent on installation tools, increasing the difficulty of operation. Secondly, when the device needs to be frequently disassembled or replaced, the operation is cumbersome and delays production progress.

[0004] Secondly, in high-pressure scenarios, poor sealing may cause media splashing, endangering the safety of operators, and the external environment may be contaminated by leakage (such as in the chemical or food industry).

[0005] Finally, long-term operation causes the temperature to rise, affecting the performance of the internal components of the pressure maintaining device. The medium performance of the hydraulic oil is affected by temperature, which may cause unstable pressure. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the deficiencies in the prior art, the present invention provides a pressure-adjustable pressure-maintaining device to solve the technical problems mentioned in the background technology.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pressure-adjustable pressure-maintaining device, comprising a main body, a connecting mechanism and a cooling mechanism, the connecting mechanism comprising a first mounting tube, a fixing sleeve, an external tube, a second mounting tube and a sealing assembly, the first mounting tube being fixedly mounted on the main body and connected in cooperation with the second mounting tube, the fixing sleeve being mounted on the main body and threadedly engaged with the second mounting tube, the external second mounting tube being fixedly mounted on the external tube, the sealing assembly comprising a first sealing gasket, a second sealing gasket and a sliding frame, the first sealing gasket being fixedly mounted on the first mounting tube, the second sealing gasket being fixedly mounted on the sliding frame, the sliding frame being mounted on the main body and slidably connected to the main body.

[0010] Preferably, the cooling mechanism includes a heat sink, a fan, a first spring, a fixed block and a connecting column, the heat sink is installed on the main body and fixedly connected to the fan, the fan is installed on the main body and detachably connected to the main body, the first spring is installed in the fan and one end of which is fixedly connected to the fixed block, the fixed block is installed on the fan and slidably connected to the fan, and the connecting column is installed on the main body and engaged with the main body thread.

[0011] It is further preferred that an extrusion plate and a second spring are installed on the second mounting tube, the extrusion plate is installed in the second mounting tube and is slidably connected to the second mounting tube, and one end of the second spring is fixedly connected to the second mounting tube to ensure the sealing operation of the connection.

[0012] In a further embodiment, an observation meter and a control member are provided on the main body, and the observation meter and the control member are respectively provided on the surface of the main body to facilitate the pressure control of the device.

[0013] In a further embodiment, a first baffle is provided on the first mounting tube, the first sealing gasket is fixedly installed inside the first baffle, a through rod is provided inside the second mounting tube, and the extrusion plate slides on the through rod to facilitate sealing of the connection.

[0014] In a further embodiment, an input tube and an output tube are provided on the main body, the first mounting tube is fixedly mounted on the input tube, a second baffle is provided on the input tube, and the sliding frame slides on the second baffle to facilitate sealing between the fixed sleeve and the second mounting tube.

[0015] In a further embodiment, a slide groove is provided on the fan, a clamping hole is provided on the connecting column, the clamping block slides inside the slide groove, and the clamping block is connected with the clamping hole to facilitate fixing the fan on the main body.

[0016] In a further embodiment, the heat dissipation rack is provided with heat dissipation plates, which are distributed on the heat dissipation rack in a linear array to facilitate timely heat dissipation of the main body.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a pressure-adjustable pressure-maintaining device with the following features:

[0019] Beneficial effects:

[0020] In the utility model, a connecting mechanism is provided, in the first mounting tube, the fixing sleeve, the external tube, the second mounting tube and the sealing assembly, the device uses a modular and standardized interface design, takes into account quick docking, and can adapt to a variety of pipeline types, facilitate operation, and reduce the problem of manual installation difficulties.

[0021] In the present invention, a sealing assembly is provided, and under the mutual cooperation of components such as the first sealing gasket, the second sealing gasket and the sliding frame, the multiple sealing structures of the device ensure no leakage, and the adaptive sealing design can make the connection more stable.

[0022] In the present invention, a cooling mechanism is provided, and with the cooperation of components such as the heat dissipation frame, the fan, the first spring, the fixing block and the connecting column, the device effectively reduces the operating temperature of the main body and improves the operating stability of the main body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a pressure-adjustable pressure-maintaining device in the present utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the utility model from another angle;

[0025] Figure 3 This is an exploded view of the cooling mechanism in the present invention;

[0026] Figure 4 This is an exploded view of the installation mechanism in the present utility model;

[0027] Figure 5 This is an exploded view of the internal structure of the fixing sleeve in the present invention.

[0028] In the figure: 1. main body; 2. first mounting tube; 3. fixing sleeve; 4. external tube; 5. second mounting tube; 6. first sealing gasket; 7. second sealing gasket; 8. sliding frame; 9. heat sink; 10. fan; 11. first spring; 12. fixing block; 13. connecting column; 14. extrusion plate; 15. second spring; 16. observation meter; 17. control part; 18. first baffle; 19. through rod; 20. input tube; 21. output tube; 22. second baffle; 23. slide groove; 24. card hole; 25. heat sink. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1:

[0031] See also Figure 1-Figure 5, a pressure-adjustable pressure-maintaining device includes a main body 1, a connecting mechanism and a cooling mechanism, the connecting mechanism includes a first mounting tube 2, a fixing sleeve 3, an external tube 4, a second mounting tube 5 and a sealing assembly, the first mounting tube 2 is fixedly mounted on the main body 1 and is connected to the second mounting tube 5, the fixing sleeve 3 is mounted on the main body 1 and is threadedly engaged with the second mounting tube 5, the external second mounting tube 5 is fixedly mounted on the external tube 4, the sealing assembly includes a first sealing gasket 6, a second sealing gasket 7 and a sliding rack 8, the first sealing gasket 6 is fixedly mounted on the first mounting tube 2, the second sealing gasket 7 is fixedly mounted on the sliding rack 8, the sliding rack 8 is mounted on the main body 1 and is slidably connected to the main body 1.

[0032] In this embodiment, the connecting mechanism includes a first mounting tube 2, a fixing sleeve 3, an external tube 4, a second mounting tube 5 and a sealing assembly. When in use, the main body 1 is first installed in the hydraulic system. At this time, the first mounting tube 2 is fixedly installed on the input tube 20 of the main body 1, and then the second mounting tube 5 is fixedly installed on the external tube 4. Then, the main body 1 and the external tube 4 are connected. After the first mounting tube 2 enters the second mounting tube 5, the fixing sleeve 3 can be rotated so that the first mounting tube 2 fixedly connected to the main body 1 is fixedly installed inside the second mounting tube 5. At this time, the liquid flows into the second mounting tube 5 in the external tube 4 and enters the first mounting tube 2, and then enters the main body 1 in the input tube 20. At this time, the observation gauge 16 on the main body 1 can be observed, and then the control part 17 is rotated to maintain or adjust the pressure. The liquid enters the input tubes 20 at both ends of the main body 1 and flows out of the output tube 21 at the lower end of the main body 1.

[0033] In this embodiment, the sealing assembly includes a first sealing gasket 6, a second sealing gasket 7 and a sliding frame 8. When the first mounting tube 2 and the second connecting tube are connected, the first baffle 18 on the first mounting tube 2 contacts the extrusion plate 14 in the second mounting tube 5, and as the first mounting tube 2 is installed, the extrusion plate 14 begins to squeeze the second spring 15 and slide on the through rod 19. At this time, the first sealing gasket 6 fixedly mounted on the first baffle 18 begins to squeeze at the same time to form a seal on the inside of the second mounting tube 5. When the internal sealing is completed, the fixing sleeve 3 can be rotated. The fixing sleeve 3 and the second mounting tube 5 are threadedly engaged and begin to squeeze the sliding frame 8 installed on the second baffle 22, so that the sliding frame 8 on the second baffle 22 contacts the second mounting tube 5 and squeezes the second sealing gasket 7 to form an external seal.

[0034] In this embodiment, the cooling mechanism includes a heat sink 9, a fan 10, a first spring 11, a fixing block 12 and a connecting column 13. When in use, the connecting column 13 can be installed on the main body 1, and then the heat sink 9 and the fan 10 are installed on the back of the main body 1. Then, the fixing block 12 on the fan 10 is pulled so that the fixing block 12 can slide in the slide groove 23 and squeeze the first spring 11. After the fan 10 is placed on the main body 1, the fixing block 12 can be released at this time. The fixing block 12 is acted upon by the first spring 11 and directly enters the clamping hole 24 in the connecting column 13, so that the fan 10 can be fixed on the main body 1. When the main body 1 dissipates heat and generates heat, the heat sink 9 absorbs the heat and transfers it to the heat sink 25. The operation of the fan 10 blows all the heat transferred from the heat sink 25 to the outside air, and forms an air circulation by utilizing the specific heat capacity of the air.

[0035] Example 2:

[0036] To sum up, when in use, the main body 1 is first installed in the hydraulic system. At this time, the first mounting tube 2 is fixedly installed on the input tube 20 of the main body 1, and then the second mounting tube 5 is fixedly installed on the external tube 4. Then the main body 1 and the external tube 4 are connected. After the first mounting tube 2 enters the second mounting tube 5, the fixing sleeve 3 can be rotated so that the first mounting tube 2 fixedly connected to the main body 1 is fixedly installed inside the second mounting tube 5. At this time, the liquid flows into the second mounting tube 5 in the external tube 4 and enters the first mounting tube 2, and then enters the main body 1 in the input tube 20. At this time, the observation gauge 16 on the main body 1 can be observed, and then the control part 17 is rotated to maintain or adjust the pressure. The liquid enters the input tubes 20 at both ends of the main body 1 and flows out of the output tube 21 at the lower end of the main body 1. And when the first mounting tube 2 and the second connecting tube are connected, the first baffle 18 on the first mounting tube 2 contacts the extrusion plate 14 in the second mounting tube 5, and as the first mounting tube 2 is installed, the extrusion plate 14 begins to squeeze the second spring 15 and slide on the through rod 19. At this time, the first sealing gasket 6 fixedly mounted on the first baffle 18 begins to squeeze at the same time to form a seal on the inside of the second mounting tube 5. When the internal sealing is completed, the fixing sleeve 3 can be rotated. The fixing sleeve 3 and the second mounting tube 5 are threadedly engaged and begin to squeeze the sliding frame 8 mounted on the second baffle 22, so that the sliding frame 8 on the second baffle 22 contacts the second mounting tube 5 and squeezes the second sealing gasket 7 to form an external seal. When the temperature on the main body 1 rises After that, a cooling mechanism needs to be added. At this time, the connecting column 13 can be installed on the main body 1, and then the heat sink 9 and the fan 10 are installed on the back of the main body 1. Then, the fixing block 12 on the fan 10 is pulled so that the fixing block 12 can slide in the slide groove 23 and squeeze the first spring 11. After the fan 10 is placed on the main body 1, the fixing block 12 can be released at this time. The fixing block 12 is acted upon by the first spring 11 and directly enters the card hole 24 in the connecting column 13, so that the fan 10 can be fixed on the main body 1. When the main body 1 dissipates heat and generates heat, the heat sink 9 absorbs the heat and transfers it to the heat sink 25. The operation of the fan 10 blows all the heat transferred from the heat sink 25 to the outside air, and forms an air circulation using the specific heat capacity of the air.

[0037] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pressure-adjustable pressure-maintaining device, comprising a main body (1), a connecting mechanism and a cooling mechanism, characterized in that: The connecting mechanism comprises a first mounting tube (2), a fixing sleeve (3), an external tube (4), a second mounting tube (5) and a sealing assembly, wherein the first mounting tube (2) is fixedly mounted on the main body (1) and is cooperatively connected with the second mounting tube (5), the fixing sleeve (3) is mounted on the main body (1) and is threadedly engaged with the second mounting tube (5), the second mounting tube (5) is fixedly mounted on the external tube (4), and the sealing assembly comprises a first sealing gasket (6), a second sealing gasket (7) and a sliding frame (8), wherein the first sealing gasket (6) is fixedly mounted on the first mounting tube (2), the second sealing gasket (7) is fixedly mounted on the sliding frame (8), and the sliding frame (8) is mounted on the main body (1) and is slidably connected with the main body (1).

2. The pressure-adjustable pressure-maintaining device according to claim 1, characterized in that: The cooling mechanism comprises a heat sink (9), a fan (10), a first spring (11), a fixing block (12) and a connecting column (13); the heat sink (9) is mounted on the main body (1) and fixedly connected to the fan (10); the fan (10) is mounted on the main body (1) and detachably connected to the main body (1); the first spring (11) is mounted in the fan (10) and one end thereof is fixedly connected to the fixing block (12); the fixing block (12) is mounted on the fan (10) and slidably connected to the fan (10); and the connecting column (13) is mounted on the main body (1) and is threadedly engaged with the main body (1).

3. The pressure-adjustable pressure-maintaining device according to claim 2, characterized in that: An extrusion plate (14) and a second spring (15) are mounted on the second mounting tube (5); the extrusion plate (14) is mounted in the second mounting tube (5) and is slidably connected to the second mounting tube (5); one end of the second spring (15) is fixedly connected to the second mounting tube (5).

4. The pressure-adjustable pressure-maintaining device according to claim 1, characterized in that: An observation meter (16) and a control member (17) are provided on the main body (1), and the observation meter (16) and the control member (17) are respectively provided on the surface of the main body (1).

5. The pressure-adjustable pressure-maintaining device according to claim 3, characterized in that: A first baffle (18) is provided on the first mounting tube (2), the first sealing gasket (6) is fixedly installed inside the first baffle (18), a through rod (19) is provided inside the second mounting tube (5), and the extrusion plate (14) slides on the through rod (19).

6. The pressure-adjustable pressure-maintaining device according to claim 1, characterized in that: An input pipe (20) and an output pipe (21) are provided on the main body (1); the first mounting pipe (2) is fixedly mounted on the input pipe (20); a second baffle (22) is provided on the input pipe (20); and the sliding frame (8) slides on the second baffle (22).

7. The pressure-adjustable pressure-maintaining device according to claim 2, characterized in that: The fan (10) is provided with a slide groove (23), the connecting column (13) is provided with a clamping hole (24), the fixing block (12) slides inside the slide groove (23), and the fixing block (12) is connected in a cooperative manner with the clamping hole (24).

8. The pressure-adjustable pressure-maintaining device according to claim 7, characterized in that: The heat dissipation frame (9) is provided with heat dissipation plates (25), and the heat dissipation plates (25) are distributed on the heat dissipation frame (9) in a linear array.

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