A piston-type pneumatic pump power cycle structure

Abstract

This utility model discloses a piston-type pneumatic pump power circulation structure, including a pneumatic main body, a fixed pipe on the side of the pneumatic main body, and a hydraulic main body at the lower end of the pneumatic main body. The fixed pipe is equipped with a sealing mechanism to improve the sealing performance of the connection at the circulation pipeline. The sealing mechanism includes a connecting pipe, threads, a fixed ring, a sealing ring, and a movable nut. The fixed pipe contacts the connecting pipe, and the connecting pipe and the fixed pipe together form a pipeline for gas circulation. This utility model uses a connecting pipe with a diameter slightly larger than the fixed pipe, allowing the connecting pipe to be inserted into the fixed pipe. Then, the movable nut is rotated to connect and fix the threaded portion of the connecting pipe. During the movement of the movable nut, it compresses the sealing ring, causing deformation, which improves the sealing performance at the connection. Furthermore, the circulation pipeline formed by this combination can be disassembled and repaired.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic pump technology, specifically to a piston-type pneumatic pump power circulation structure. Background Technology

[0002] The power cycle structure of a piston-type pneumatic pump mainly consists of a cylinder, piston, reversing valve, inlet and outlet ports, etc. Its working process is based on the principle of pneumatic transmission. The piston is driven by gas pressure to perform reciprocating motion, thereby realizing the functions of liquid suction and discharge. It is often used in the chemical industry, oil and gas extraction, sewage treatment and other fields.

[0003] A piston-type pneumatic pump power circulation structure is proposed in an existing utility model patent (patent publication number: CN221096741U). This utility model patent includes a hydraulic mechanism, a pump body is arranged above the hydraulic mechanism, a piston rod assembly that cooperates with the hydraulic mechanism is arranged inside the pump body cavity, and a pneumatic mechanism is arranged above the pump body. The pneumatic mechanism causes the piston rod assembly to reciprocate within the pump body. A gas circulation pipe is arranged between the pump body and the pneumatic mechanism. This utility model can effectively reduce gas loss during the power gas circulation process of the piston-type pneumatic pump, thereby ensuring the stable operation of the piston-type pneumatic pump at high frequencies.

[0004] However, the above-mentioned patents still have the following problems: The gas circulation pipeline is often connected by bolts, but this connection method may result in poor sealing at the connection point and easy leakage. Utility Model Content

[0005] The purpose of this utility model is to provide a piston-type pneumatic pump power circulation structure. This utility model connects the fixed pipe and the connecting pipe by rotating the movable nut, with the diameter of the connecting pipe slightly larger than that of the fixed pipe. The connecting pipe can be inserted into the fixed pipe, and then the movable nut is rotated to fix the connecting pipe. During the movement of the movable nut, the movable nut will squeeze the sealing ring, causing the sealing ring to deform. At this time, the sealing performance of the connection can be improved, and the pipeline can be disassembled and repaired, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a piston-type pneumatic pump power circulation structure, including a pneumatic body, a fixed pipe provided on the side of the pneumatic body, a hydraulic body provided at the lower end of the pneumatic body, and a sealing mechanism provided on the fixed pipe for improving the sealing performance of the connection at the circulation pipeline. The sealing mechanism includes a connecting pipe, threads, a fixing ring, a sealing ring, and a movable nut. The connecting pipe is in contact with the fixing pipe, and the connecting pipe and the fixing pipe together form a pipeline for gas circulation. Threads are provided at both ends of the connecting pipe. A fixing ring is fixedly connected to the outside of the connecting pipe, and a sealing ring is fixedly adhered to the fixing ring. A movable nut is rotatably connected to the outside of the fixing pipe, and the movable nut is connected to the threads via threads.

[0007] Preferably, the sealing ring contacts the movable nut, and the sealing ring is slidably connected to the outside of the connecting pipe.

[0008] Preferably, a mounting plate is fixedly connected to the outer side of the hydraulic body, bolts are movably connected inside the mounting plate, and a limiting mechanism is provided on the mounting plate to improve the installation stability of the device.

[0009] Preferably, the limiting mechanism includes a nut, annular groove, pin, mounting groove, guide rod, and spring. The upper end of the bolt is fixedly connected to the nut, the nut has an annular groove, the nut contacts the upper end of the mounting plate, the pin is slidably connected in the annular groove, the upper end of the mounting plate has a mounting groove, the guide rod is fixedly connected in the mounting groove, and the outer side of the guide rod is fitted with a spring.

[0010] Preferably, one end of the spring is fixedly connected to the pin, and the other end of the spring is fixedly connected to the mounting groove.

[0011] Preferably, the pin is slidably connected within the mounting groove, and the pin is slidably connected to the outside of the guide rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model uses a connecting pipe with a diameter slightly larger than that of the fixed pipe. The connecting pipe can be inserted into the fixed pipe, and then the movable nut is rotated to connect and fix the threaded part of the connecting pipe. During the movement of the movable nut, the movable nut will squeeze the sealing ring, causing the sealing ring to deform. This improves the sealing performance of the connection. Moreover, the circulation pipeline formed by this combination can be disassembled and repaired. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the unfolded structure of the sealing mechanism of this utility model; Figure 3 This is a schematic diagram of the limiting mechanism structure of this utility model.

[0014] In the diagram: 1. Pneumatic main body; 2. Fixed pipe; 3. Hydraulic main body; 4. Sealing mechanism; 41. Connecting pipe; 42. Thread; 43. Fixed ring; 44. Sealing ring; 45. Movable nut; 5. Mounting plate; 6. Bolt; 7. Limiting mechanism; 71. Nut; 72. Ring groove; 73. Pin; 74. Mounting groove; 75. Guide rod; 76. Spring. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-3 This utility model provides a technical solution: a piston-type pneumatic pump power circulation structure, including a pneumatic body 1, a fixed pipe 2 provided on the side of the pneumatic body 1, a hydraulic body 3 provided at the lower end of the pneumatic body 1, and a sealing mechanism 4 provided on the fixed pipe 2 for improving the sealing performance of the connection at the circulation pipeline. The sealing mechanism 4 includes a connecting pipe 41, a thread 42, a fixing ring 43, a sealing ring 44, and a movable nut 45. The connecting pipe 41 is in contact with the fixing pipe 2. The connecting pipe 41 and the fixing pipe 2 together form a pipeline for gas circulation. Both ends of the connecting pipe 41 are provided with threads 42. The fixing ring 43 is fixedly connected to the outside of the connecting pipe 41. The sealing ring 44 is fixedly adhered to the fixing ring 43. The movable nut 45 is rotatably connected to the outside of the fixing pipe 2. The movable nut 45 is connected to the thread 42 through the thread 42.

[0017] This utility model uses the various components of the sealing mechanism 4 above in cooperation. A connecting pipe 41 with a diameter slightly larger than that of the fixed pipe 2 is used. The connecting pipe 41 can be inserted into the fixed pipe 2. At this time, the movable nut 45 is rotated so that the movable nut 45 is connected to the thread 42 provided on the connecting pipe 41. At this time, the movable nut 45 moves. During the movement of the movable nut 45, the cooperation between the movable nut 45 and the fixed ring 43 can compress the sealing ring 44. The sealing ring 44 will be deformed after being compressed. The deformed sealing ring 44 will enhance the sealing performance of the connection.

[0018] The sealing ring 44 contacts the movable nut 45, and the sealing ring 44 is slidably connected to the outside of the connecting pipe 41.

[0019] The sealing performance at the connection of the circulation pipeline can be improved by the deformation of the sealing ring 44.

[0020] A mounting plate 5 is fixedly connected to the outside of the hydraulic body 3, and bolts 6 are movably connected inside the mounting plate 5. A limiting mechanism 7 is provided on the mounting plate 5 to improve the installation stability of the device.

[0021] The entire device can be installed by using the mounting plate 5 and bolts 6 together.

[0022] The limiting mechanism 7 includes a nut 71, an annular groove 72, a pin 73, a mounting groove 74, a guide rod 75, and a spring 76. The upper end of the bolt 6 is fixedly connected to the nut 71, and the nut 71 has an annular groove 72. The nut 71 contacts the upper end of the mounting plate 5. The pin 73 is slidably connected in the annular groove 72. The upper end of the mounting plate 5 has a mounting groove 74, and the guide rod 75 is fixedly connected in the mounting groove 74. The spring 76 is sleeved on the outside of the guide rod 75.

[0023] This utility model utilizes the above-mentioned upper limit mechanism 7 components in conjunction. During installation via bolt 6, the pin 73 can be pulled, and then the nut 71 can be rotated to move the bolt 6. Once the bolt 6 has moved to the appropriate position on the mounting surface, the pin 73 is released. At this point, under the elastic action of the spring 76, the pin 73 can move and slide into the annular groove 72 on the nut 71, thus limiting the nut 71 and the bolt 6. This prevents vibration during use from causing loosening of the installation and affecting the normal operation of the device.

[0024] One end of the spring 76 is fixedly connected to the pin 73, and the other end of the spring 76 is fixedly connected to the mounting groove 74.

[0025] As the pin 73 moves away from the nut 71, it compresses the spring 76, causing the spring 76 to generate elastic force. Subsequently, under the elastic action of the spring 76, the pin 73 can move and return to its original position.

[0026] The pin 73 is slidably connected to the mounting groove 74 and to the outside of the guide rod 75.

[0027] During the movement of the pin 73, the guide rod 75 can provide guidance, making the movement of the pin 73 more stable and preventing it from deviating.

[0028] In practical use, a connecting pipe 41 with a diameter slightly larger than that of the fixed pipe 2 is used. The connecting pipe 41 can be inserted into the fixed pipe 2. At this time, the movable nut 45 is rotated so that the movable nut 45 is connected to the thread 42 provided on the connecting pipe 41. At this time, the movable nut 45 moves. During the movement of the movable nut 45, the movable nut 45 and the fixed ring 43 cooperate to compress the sealing ring 44. The sealing ring 44 will deform after being compressed. The deformed sealing ring 44 will enhance the sealing of the connection. The specific way to achieve the power cycle has been disclosed in the utility model patent with patent number: CN221096741U. During installation using bolt 6, the pin 73 can be pulled, and then the nut 71 can be rotated to move bolt 6. When bolt 6 moves to a suitable position on the mounting surface, the pin 73 can be released. At this time, under the elastic action of spring 76, the pin 73 can move and slide into the annular groove 72 opened on the nut 71. At this time, the nut 71 can be limited, thereby limiting bolt 6 and preventing vibration during use from causing loosening of the installation and affecting the normal use of the device.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piston pneumatic pump power cycle configuration comprising a pneumatic body (1), characterized by: A fixed pipe (2) is provided on the side of the pneumatic body (1), and a hydraulic body (3) is provided at the lower end of the pneumatic body (1). A sealing mechanism (4) for improving the sealing performance of the connection at the circulation pipeline is provided on the fixed pipe (2). The sealing mechanism (4) includes a connecting pipe (41), a thread (42), a fixing ring (43), a sealing ring (44), and a movable nut (45). The connecting pipe (41) is in contact with the fixing pipe (2). The connecting pipe (41) and the fixing pipe (2) together form a pipeline for gas circulation. Both ends of the connecting pipe (41) are provided with threads (42). The fixing ring (43) is fixedly connected to the outside of the connecting pipe (41). The sealing ring (44) is fixedly adhered to the fixing ring (43). The movable nut (45) is rotatably connected to the outside of the fixing pipe (2). The movable nut (45) is connected to the thread (42) through the thread (42).

2. A piston pneumatic pump power cycle configuration according to claim 1, characterized by: The sealing ring (44) contacts the movable nut (45), and the sealing ring (44) is slidably connected to the outside of the connecting pipe (41).

3. A piston type pneumatic pump power cycle structure according to claim 1, characterized in that: The outer side of the hydraulic body (3) is fixedly connected to a mounting plate (5), and a bolt (6) is movably connected inside the mounting plate (5). A limiting mechanism (7) is provided on the mounting plate (5) to improve the installation stability of the device.

4. A piston type pneumatic pump power cycle structure according to claim 3, characterized in that: The limiting mechanism (7) includes a nut (71), an annular groove (72), a pin (73), a mounting groove (74), a guide rod (75), and a spring (76). The upper end of the bolt (6) is fixedly connected to the nut (71). The nut (71) has an annular groove (72) on it. The nut (71) contacts the upper end of the mounting plate (5). The pin (73) is slidably connected in the annular groove (72). The upper end of the mounting plate (5) has a mounting groove (74). The guide rod (75) is fixedly connected in the mounting groove (74). The spring (76) is sleeved on the outside of the guide rod (75).

5. A piston type pneumatic pump power cycle structure according to claim 4, characterized by: One end of the spring (76) is fixedly connected to the pin (73), and the other end of the spring (76) is fixedly connected to the mounting groove (74).

6. A piston type pneumatic pump power cycle structure according to claim 4, characterized by: The pin (73) is slidably connected in the mounting groove (74) and the pin (73) is slidably connected to the outside of the guide rod (75).

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