A sampling device for water conservancy investigation

Abstract

The application relates to the technical field of water conservancy projects, and provides a sampling device for water conservancy project investigation, which comprises a ship body, a liquid storage bin is fixedly arranged on the ship body, a plurality of partitions are arranged in the liquid storage bin, the liquid storage bin is divided into a plurality of sampling cavities through the plurality of partitions, a plurality of liquid discharge pipes which are in communication with the sampling cavities are arranged on the liquid storage bin, a liquid discharge electromagnetic valve is arranged on each of the plurality of liquid discharge pipes, a liquid inlet pipe is arranged on a first sliding block, a pump body is arranged on the ship body, a sampling pipe is arranged on the pump body, and a third pipeline is sealingly mounted at an outlet end of the pump body. The pump body is started to extract water resources through the sampling pipe, and the water resources are discharged into the liquid storage bin through the liquid inlet pipe. The first driving part is started to drive the first sliding block to move through a transmission mechanism, the liquid inlet pipe is driven to move through the first sliding block, water resources at different positions are sampled and stored respectively, and the precision performance of sampling detection is improved.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy engineering technology, and specifically relates to a sampling device for water conservancy engineering survey. Background Technology

[0002] Water is a gift from Mother Nature and a resource upon which people depend for survival. People need to use water resources rationally in their daily lives, so water conservancy projects are needed to manage the use of water resources in daily life. As a way to rationally manage water resources, water conservancy projects can help people allocate regional water resources and prevent floods and droughts.

[0003] Patent application number 2021233011483 discloses a sampling device for water conservancy engineering surveys, including a hull with propellers rotatably connected to both ends of one side of the hull. A drive motor is fixedly installed inside the hull, and a pull rope is wound around the drive shaft of the drive motor. A first magnet is fixedly attached to one end of the pull rope, and the first magnet is magnetically connected to multiple second magnets. The multiple second magnets are respectively fixed to the tops of multiple sampling bottles. This sampling device for water conservancy engineering surveys, through the coordinated use of the drive motor, pull rope, first magnet, second magnets, and sampling bottles, works by the drive motor winding the pull rope as it propels the propellers forward. This causes the pull rope to move the first magnet, and then, under the repulsive force of like poles, it pulls...

[0004] The second magnet and the sampling bottle move downwards to perform sampling, which facilitates water quality sampling and investigation at different locations and improves the accuracy of water quality sampling. However, it cannot achieve the function of sampling water resources from multiple locations and storing them separately, thus reducing the accuracy of water resource testing and reducing labor efficiency. Utility Model Content

[0005] In view of this, the present invention provides a sampling device for water conservancy engineering survey. The pump body is started to extract water resources through the sampling pipe and discharge them into the storage tank through the liquid inlet pipe. The first drive component is started to drive the first sliding block to move through the transmission mechanism. The first sliding block drives the liquid inlet pipe to move, realizing the function of sampling water resources at different locations and storing them separately, thereby improving the accuracy of sampling and detection.

[0006] The technical solution is as follows: A sampling device for water conservancy engineering survey includes a hull and a power / control component installed on the hull for moving the hull. A liquid storage tank is fixedly installed on the hull, and multiple partitions are provided inside the liquid storage tank to divide the liquid storage tank into multiple sampling chambers. Multiple drain pipes communicating with the sampling chambers are provided on the liquid storage tank, and each of the multiple drain pipes is equipped with a drain solenoid valve. A first sliding block is slidably installed on the liquid storage tank, and a first driving component is detachably installed on the liquid storage tank. The first driving component is connected to the first sliding block through a transmission mechanism. Activating the first driving component drives the first sliding block to move through the transmission mechanism. An inlet pipe is provided on the first sliding block. A pump body is provided on the hull, and a sampling pipe is provided on the pump body. A third pipe is sealed at the outlet end of the pump body, and the third pipe is connected to the inlet pipe through a liquid delivery hose.

[0007] During use, the above technical solution works as follows: the pump body is started to extract water resources through the sampling pipe and discharge them into the storage tank through the inlet pipe. The first drive component is started to drive the first sliding block to move through the transmission mechanism. The first sliding block drives the inlet pipe to move, thereby realizing the function of sampling water resources at different locations and storing them separately, thus improving the accuracy of sampling and detection.

[0008] Preferably, the transmission mechanism includes a first screw rotatably mounted on a liquid storage tank, a guide rod provided on the liquid storage tank, a first screw hole and a guide hole provided on the first sliding block, the first screw threadedly mounted in the first screw hole, the guide rod slidably mounted in the guide hole, and the output end of the first driving component being connected to the first screw in a transmission connection.

[0009] Preferably, a first mounting base is fixedly provided on the first sliding block, a first pipe is fixedly provided on the first mounting base, an inlet pipe and a second pipe are provided on the first pipe, a first solenoid valve is provided on both the inlet pipe and the second pipe, the inlet pipe corresponds to the sampling chamber, the end of the second pipe extends into a storage tank, and the first pipe is sealed and connected to the infusion hose.

[0010] During the use of the above technical solution: start the pump body, open the first solenoid valve on the second pipeline, close the first solenoid valve on the inlet pipe, extract water resources from the sampling point, and discharge them through the second pipeline. After waiting for a certain period of time, open the first solenoid valve on the inlet pipe and close the first solenoid valve on the second pipeline to prevent the water resources from the previous sampling from remaining in the infusion tubing during continuous water extraction, thereby reducing the accuracy of water resource detection.

[0011] Preferably, a support frame is fixedly installed on the hull, a second screw is rotatably installed on the support frame, a second driving component for driving the second screw to rotate is detachably installed on the support frame, and a second sliding block is slidably installed on the support frame, the second sliding block being threaded onto the second screw.

[0012] Preferably, the second sliding block has a second screw hole, and the second screw is threadedly installed in the second screw hole.

[0013] Preferably, the support frame is provided with a second sliding groove, the cross-section of the second sliding groove is U-shaped, the cross-section of the second sliding block is U-shaped corresponding to the second sliding groove, and the second sliding block is slidably installed in the second sliding groove.

[0014] Preferably, a second mounting base is fixedly provided on the second sliding block, the sampling tube is fixedly installed on the second mounting base, a filter ball is fixedly provided at the lower end of the sampling tube, a third pipe is sealed and installed at the water outlet end of the pump body, and the end of the third pipe is sealed and connected to the infusion hose.

[0015] Preferably, the liquid storage tank is provided with multiple overflow holes, which correspond to multiple sampling chambers, and the height of the overflow holes is lower than the height of the partition.

[0016] During use, the above technical solution works as follows: the second drive component is activated, which drives the second sliding block to move via the second screw, and the second sliding block drives the sampling tube to move, thereby enabling water resources to be sampled at different depths.

[0017] Preferably, the liquid storage tank is provided with a first sliding groove, and multiple positioning mechanisms are fixedly arranged in the first sliding groove of the liquid storage tank. The multiple positioning mechanisms correspond to the sampling chamber. A connecting rod is fixedly arranged on the first sliding block, and the connecting rod corresponds to the positioning mechanism.

[0018] Preferably, the positioning mechanism includes a positioning cavity fixedly installed on the liquid storage tank, a first detection contact fixedly disposed in the positioning cavity, a piston plate slidably disposed in the positioning cavity, a second detection contact corresponding to the first detection contact fixedly disposed on the piston plate, a positioning rod fixedly disposed on the piston plate, a hemispherical positioning head fixedly disposed on the positioning rod, a hemispherical head corresponding to the hemispherical positioning head disposed on the connecting rod, and an elastic component disposed between the piston plate and the positioning cavity.

[0019] During use, the above technical solution works as follows: the first sliding block drives the connecting rod to move along the first sliding groove; the hemispherical head on the connecting rod presses the hemispherical positioning head; the hemispherical positioning head drives the positioning rod to move; and the positioning rod drives the second detection contact to contact the first detection contact, thereby achieving the function of automatically positioning the liquid inlet pipe.

[0020] After adopting the above technical solution, the beneficial effects of this utility model are:

[0021] 1. The pump body is started to extract water resources through the sampling pipe and discharge them into the storage tank through the liquid inlet pipe. The first drive component is started to drive the first sliding block to move through the transmission mechanism. The first sliding block drives the liquid inlet pipe to move, realizing the function of sampling water resources at different locations and storing them separately, thereby improving the accuracy of sampling and detection.

[0022] 2. Start the pump body, open the first solenoid valve on the second pipeline, close the first solenoid valve on the inlet pipe, extract water resources from the sampling point, and discharge them through the second pipeline. After a certain period of time, open the first solenoid valve on the inlet pipe and close the first solenoid valve on the second pipeline to prevent the water resources from the previous sampling from remaining in the infusion tubing during continuous water extraction, thereby reducing the accuracy of water resource testing.

[0023] 3. The first sliding block drives the connecting rod to move along the first sliding groove. The hemispherical head on the connecting rod squeezes the hemispherical positioning head. The hemispherical positioning head drives the positioning rod to move. The positioning rod drives the second detection contact to contact the first detection contact, thereby realizing the function of automatic positioning of the liquid inlet pipe. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is the front view of the present invention;

[0027] Figure 3 This is a top view of the present invention;

[0028] Figure 4 This is an exploded view of the present invention;

[0029] Figure 5This is a perspective view of the liquid storage tank of this utility model;

[0030] Figure 6 This is a perspective view of the first sliding block of this utility model;

[0031] Figure 7 This is a schematic diagram of the installation of the sampling tube of this utility model;

[0032] Figure 8 This is a cross-sectional view of the positioning mechanism of this utility model;

[0033] In the diagram, 1. Hull; 2. Power / control components; 3. Liquid storage tank; 4. Baffle; 5. Drain pipe; 6. Drain solenoid valve; 7. Mounting hole; 8. Guide rod; 9. Overflow pipe; 10. First sliding groove; 11. Positioning mechanism; 12. Support frame; 13. Second sliding groove; 14. Second screw; 15. Second drive component; 16. First screw; 17. Rotating shaft; 18. First drive component; 19. First sliding block; 20. First screw hole; 21. Guide hole; 22. First mounting base; 23. First pipe; 24. Liquid inlet pipe. 25. Second pipe; 26. First solenoid valve; 27. Second sliding block; 28. Second screw hole; 29. ​​Second mounting base; 30. Sampling tube; 31. Filter ball; 32. Pump body; 33. Third pipe; 34. Infusion hose; 35. Connecting rod; 36. Hemispherical head; 1101. Positioning cavity; 1102. First detection contact; 1103. Annular baffle; 1104. Piston plate; 1105. Second detection contact; 1106. Sliding hole; 1107. Positioning rod; 1108. Hemispherical positioning head; 1109. Elastic component; Detailed Implementation

[0034] 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. Example

[0035] like Figures 1 to 8As shown, a sampling device for water conservancy engineering survey includes a hull 1 and a power / control component 2 installed on the hull 1 for moving the hull 1. A liquid storage tank 3 is fixedly installed on the hull 1. The liquid storage tank 3 is provided with multiple partitions 4, which divide the liquid storage tank 3 into multiple sampling chambers. Multiple drain pipes 5 are provided on the liquid storage tank 3 and communicate with the sampling chambers. Each drain pipe 5 is provided with a drain solenoid valve 6. A first sliding block 19 is slidably installed on the liquid storage tank 3. A first drive component 18 is detachably installed on the liquid tank 3. The first drive component 18 is connected to the first sliding block 19 through a transmission mechanism. When the first drive component 18 is started, the first sliding block 19 is moved through the transmission mechanism. An inlet pipe 24 is provided on the first sliding block 19. A pump body 32 is provided on the hull 1. A sampling pipe 30 is provided on the pump body 32. A third pipe 33 is sealed at the outlet end of the pump body 32. The third pipe 33 is connected to the inlet pipe 24 through a liquid delivery hose 34.

[0036] Specifically: the power / control component 2 includes a power mechanism and a control mechanism, both of which are existing known technologies, and the pump body 32 is a water pump.

[0037] The transmission mechanism includes a first screw 16 rotatably mounted on the liquid storage tank 3, a guide rod 8 provided on the liquid storage tank 3, a first screw hole 20 and a guide hole 21 provided on the first sliding block 19, the first screw 16 being threadedly mounted in the first screw hole 20, the guide rod 8 being slidably mounted in the guide hole 21, and the output end of the first drive component 18 being connected to the first screw 16 in a transmission connection.

[0038] Specifically: The liquid storage tank 3 has a mounting hole 7, and a rotating shaft 17 is fixedly installed on the first screw 16. The rotating shaft 17 is rotatably installed in the mounting hole 7. The first drive component 18 is a forward and reverse servo motor. The first drive component 18 is installed in the liquid storage tank 3 by bolts and nuts. The output end of the first drive component 18 is connected and fixed to one of the rotating shafts 17.

[0039] In actual operation: the pump body 32 is started to extract water resources through the sampling tube 30, and large floating objects are filtered through the filter ball 31. The water resources enter the inlet pipe 24 through the third pipe 33, the infusion hose 34, and the first pipe 23, and are discharged into the corresponding sampling chamber through the inlet pipe 24. The first drive component 18 is started to drive the first screw 16 to rotate through the rotating shaft 17. The first screw 16 drives the first sliding block 19 to move along the guide rod 8. The first sliding block 19 drives the first pipe 23 and the inlet pipe 24 to move, thereby realizing the function of sampling from multiple places and storing them separately.

[0040] A first mounting base 22 is fixedly installed on the first sliding block 19. A first pipe 23 is fixedly installed on the first mounting base 22. An inlet pipe 24 and a second pipe 25 are installed on the first pipe 23. A first solenoid valve 26 is installed on both the inlet pipe 24 and the second pipe 25. The inlet pipe 24 corresponds to the sampling chamber. The end of the second pipe 25 extends into the liquid storage tank 3. The first pipe 23 is sealed and connected to the infusion hose 34.

[0041] In actual operation: start pump body 32, open the first solenoid valve 26 on the second pipeline 25, close the first solenoid valve 26 on the inlet pipe 24, extract water resources from the sampling point, and discharge them through the second pipeline 25. After waiting for a certain period of time, open the first solenoid valve 26 on the inlet pipe 24 and close the first solenoid valve 26 on the second pipeline 25 to prevent the water resources from the previous sampling from remaining in the infusion hose 34 during continuous water extraction, thereby reducing the accuracy of water resource detection.

[0042] A support frame 12 is fixedly installed on the hull 1. A second screw 14 is rotatably installed on the support frame 12. A second drive component 15 for driving the second screw 14 to rotate is detachably installed on the support frame 12. A second sliding block 27 is slidably installed on the support frame 12 and threaded onto the second screw 14.

[0043] The second sliding block 27 has a second screw hole 28, and the second screw 14 is threadedly installed in the second screw hole 28.

[0044] The support frame 12 has a second sliding groove 13. The cross-section of the second sliding groove 13 is U-shaped. The cross-section of the second sliding block 27 is U-shaped, corresponding to the second sliding groove 13. The second sliding block 27 is slidably installed in the second sliding groove 13.

[0045] Specifically: the second drive component 15 is a forward and reverse servo motor, and the second drive component 15 is mounted on the support frame 12 by bolts and nuts.

[0046] A second mounting base 29 is fixedly installed on the second sliding block 27. The sampling tube 30 is fixedly installed on the second mounting base 29. A filter ball 31 is fixedly installed at the lower end of the sampling tube 30. A third pipe 33 is sealed and installed at the water outlet end of the pump body 32. The end of the third pipe 33 is sealed and connected to the infusion hose 34.

[0047] Multiple overflow holes are provided in the liquid storage tank 3, and the multiple overflow holes correspond to multiple sampling chambers. The height of the overflow holes is lower than the height of the partition 4.

[0048] In actual operation: the second drive component 15 is activated to drive the second sliding block 27 to move through the second screw 14, and the second sliding block 27 drives the sampling tube 30 to move, so as to sample water resources at different depths. When the water resources in the sampling chamber are higher than the overflow hole, they are discharged through the overflow hole to prevent the water level in the sampling chamber from being higher than the partition 4, which would damage the water resources in the other sampling chambers.

[0049] The liquid storage tank 3 has a first sliding groove 10. Multiple positioning mechanisms 11 are fixedly installed in the first sliding groove 10 of the liquid storage tank 3. The multiple positioning mechanisms 11 correspond to the sampling chamber. A connecting rod 35 is fixedly installed on the first sliding block 19. The connecting rod 35 corresponds to the positioning mechanism 11.

[0050] The positioning mechanism 11 includes a positioning cavity 1101 fixedly installed on the liquid storage tank 3. A first detection contact 1102 is fixedly installed in the positioning cavity 1101. A piston plate 1104 is slidably installed in the positioning cavity 1101. A second detection contact 1105 corresponding to the first detection contact 1102 is fixedly installed on the piston plate 1104. A positioning rod 1107 is fixedly installed on the piston plate 1104. A hemispherical positioning head 1108 is fixedly installed on the positioning rod 1107. A hemispherical head 36 corresponding to the hemispherical positioning head 1108 is installed on the connecting rod 35. An elastic component 1109 is provided between the piston plate 1104 and the positioning cavity 1101.

[0051] Specifically: a sliding hole 1106 is provided on the positioning cavity 1101, the positioning rod 1107 slides through the sliding hole 1106, the hemispherical positioning head 1108 extends out of the positioning cavity 1101 by a distance equal to the distance between the second detection contact 1105 and the first detection contact 1102, an annular baffle 1103 is fixedly provided inside the positioning cavity 1101, the distance between the piston plate 1104 and the annular baffle 1103 is equal to the distance between the second detection contact 1105 and the first detection contact 1102, and the elastic component 1109 is a return spring, one end of the return spring is connected and fixed to the piston plate 1104, and the other end is connected and fixed to the positioning cavity 1101.

[0052] In actual operation: the first sliding block 19 drives the connecting rod 35 to move along the first sliding groove 10, the hemispherical head 36 on the connecting rod 35 presses the hemispherical positioning head 1108, the hemispherical positioning head 1108 drives the positioning rod 1107 to move, and the positioning rod 1107 drives the second detection contact 1105 to contact the first detection contact 1102, thereby realizing the function of automatic positioning of the liquid inlet pipe 24.

[0053] The working principle of this utility model is as follows: Pump body 32 is activated to extract water resources through sampling tube 30. Large floating objects are filtered through filter ball 31. Water resources enter the inlet pipe 24 through third pipe 33, infusion hose 34, and first pipe 23, and are discharged into the corresponding sampling chamber through inlet pipe 24. First drive component 18 is activated to drive first screw 16 to rotate via rotating shaft 17. First screw 16 drives first sliding block 19 to move along guide rod 8. First sliding block 19 drives first pipe 23 and inlet pipe 24 to move, thereby achieving multiple sampling and separate storage. Second drive component 15 is activated to drive second sliding block 27 to move via second screw 14. Second sliding block 27 drives sampling tube 30 to move, enabling sampling of water resources at different depths. When the water level in the sampling chamber is higher than the overflow hole, it is discharged through the overflow hole to prevent the water level in the sampling chamber from exceeding the partition 4 and causing damage to the water resources in other sampling chambers.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A sampling device for hydraulic engineering survey, comprising a hull (1) and a power / control unit (2) mounted on the hull (1) for moving the hull (1), characterized in that: A liquid storage tank (3) is fixedly installed on the hull (1). Multiple partitions (4) are installed inside the liquid storage tank (3), dividing it into multiple sampling chambers. Multiple drain pipes (5) communicating with the sampling chambers are installed on the liquid storage tank (3). Each drain pipe (5) is equipped with a drain solenoid valve (6). A first sliding block (19) is slidably installed on the liquid storage tank (3). A first driving component (18) is detachably installed on the liquid storage tank (3). (18) The first drive component (18) is connected to the first sliding block (19) through the transmission mechanism. The first drive component (18) is started to drive the first sliding block (19) to move through the transmission mechanism. The first sliding block (19) is provided with an inlet pipe (24). The hull (1) is provided with a pump body (32). The pump body (32) is provided with a sampling pipe (30). The outlet end of the pump body (32) is sealed with a third pipe (33). The third pipe (33) is connected to the inlet pipe (24) through an infusion hose (34).

2. The sampling equipment for water conservancy engineering survey according to claim 1, characterized in that, The transmission mechanism includes a first screw (16) rotatably mounted on the liquid storage tank (3), a guide rod (8) is provided on the liquid storage tank (3), a first screw hole (20) and a guide hole (21) are provided on the first sliding block (19), the first screw (16) is threadedly mounted in the first screw hole (20), the guide rod (8) is slidably mounted in the guide hole (21), and the output end of the first driving component (18) is connected to the first screw (16) in a transmission connection.

3. A sampling device for water conservancy engineering survey according to claim 2, characterized in that, A first mounting base (22) is fixedly installed on the first sliding block (19), and a first pipe (23) is fixedly installed on the first mounting base (22). An inlet pipe (24) and a second pipe (25) are installed on the first pipe (23). A first solenoid valve (26) is installed on both the inlet pipe (24) and the second pipe (25). The inlet pipe (24) corresponds to the sampling chamber. The end of the second pipe (25) extends into a storage tank (3). The first pipe (23) is sealed and connected to the infusion hose (34).

4. A sampling device for water conservancy engineering survey according to claim 3, characterized in that, A support frame (12) is fixedly installed on the hull (1). A second screw (14) is rotatably installed on the support frame (12). A second driving component (15) for driving the second screw (14) to rotate is detachably installed on the support frame (12). A second sliding block (27) is slidably installed on the support frame (12). The second sliding block (27) is threaded onto the second screw (14).

5. A sampling device for water conservancy engineering survey according to claim 4, characterized in that, The second sliding block (27) has a second screw hole (28), and the second screw (14) is threaded into the second screw hole (28).

6. A sampling device for water conservancy engineering survey according to claim 5, characterized in that, The support frame (12) is provided with a second sliding groove (13). The cross-section of the second sliding groove (13) is U-shaped. The cross-section of the second sliding block (27) is U-shaped and corresponds to the second sliding groove (13). The second sliding block (27) is slidably installed in the second sliding groove (13).

7. A sampling device for water conservancy engineering survey according to claim 6, characterized in that, A second mounting base (29) is fixedly installed on the second sliding block (27), the sampling tube (30) is fixedly installed on the second mounting base (29), a filter ball (31) is fixedly installed at the lower end of the sampling tube (30), a third pipe (33) is sealed and installed at the water outlet end of the pump body (32), and the end of the third pipe (33) is sealed and connected to the infusion hose (34).

8. A sampling device for water conservancy engineering survey according to claim 7, characterized in that, The liquid storage tank (3) has multiple overflow holes, which correspond to multiple sampling chambers. The height of the overflow holes is lower than the height of the partition (4).

9. A sampling device for water conservancy engineering survey according to any one of claims 1-8, characterized in that, The liquid storage tank (3) is provided with a first sliding groove (10). Multiple positioning mechanisms (11) are fixedly installed in the first sliding groove (10) of the liquid storage tank (3). The multiple positioning mechanisms (11) correspond to the sampling chamber. A connecting rod (35) is fixedly installed on the first sliding block (19). The connecting rod (35) corresponds to the positioning mechanism (11).

10. A sampling device for water conservancy engineering survey according to claim 9, characterized in that, The positioning mechanism (11) includes a positioning cavity (1101) fixedly installed on the liquid storage tank (3). A first detection contact (1102) is fixedly installed in the positioning cavity (1101). A piston plate (1104) is slidably installed in the positioning cavity (1101). A second detection contact (1105) corresponding to the first detection contact (1102) is fixedly installed on the piston plate (1104). A positioning rod (1107) is fixedly installed on the piston plate (1104). A hemispherical positioning head (1108) is fixedly installed on the positioning rod (1107). A hemispherical head (36) corresponding to the hemispherical positioning head (1108) is installed on the connecting rod (35). An elastic component (1109) is provided between the piston plate (1104) and the positioning cavity (1101).

Images