Integrated visual constant head permeameter device

Abstract

The present invention discloses an integrated visual constant-head permeameter device, which relates to the technical field of constant-head permeameters. The device comprises a base, on which a support frame is fixedly mounted, a water supply barrel fixedly mounted on the support frame, a drainage pipe fixedly connected to the water supply barrel, and a permeation cylinder fixedly mounted on the base and on one side of the support frame; an auxiliary component is provided on the outside of the permeation cylinder, which allows the sample to be evenly positioned inside the permeation cylinder through the auxiliary component; three pressure measuring tubes at different positions are fixedly connected to the side end face of the permeation cylinder; a scale is fixedly mounted on the upper end face of the base; a measuring cylinder is fixedly mounted on the base and on one side of the permeation cylinder, and a through pipe is fixedly connected to the side end face of the permeation cylinder. This invention improves the compaction effect of the sample in the permeation cylinder through the mutual cooperation of the various structures in the auxiliary component, enhances the accuracy and stability of the experiment, and effectively improves the use effect of the entire device.

Description

Technical Field

[0001] The invention relates to the technical field of constant water head permeameters, in particular to an integrated visual constant water head permeameter device. Background Art

[0002] Currently, the Model 70 soil permeameter, modeled after the Malmö permeameter, is primarily used in constant head permeability tests. It can be used to measure the permeability of sandy soils and incohesive soils containing small amounts of gravel under constant head. The Model 70 permeameter is primarily composed of a water seepage component and a compaction component. The water seepage component consists of a cylinder, a water seepage plate, a graduated plate, and a piezometer. The piezometer connector is fitted with copper wire cloth to prevent fine sand particles from escaping with the water during the test. The compaction component includes a wooden hammer to compact the specimen.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN205538585U discloses a constant head soil permeameter. Before the test begins, a suitable metal filter is selected and embedded in the inner wall groove of the permeation tube. Before the test begins, the two bases of the compaction device are symmetrically arranged on both sides of the permeation tube, the vertical rod and the horizontal rod are connected, and the horizontal rod and the compaction hammer are connected with a scale rope. During the sample preparation process, the soil sample of appropriate thickness is laid. According to the required compaction work, the height of the compaction hammer from the top surface of the soil sample is adjusted by rotating the horizontal rod by the handle. After centering, the handle is released to allow the compaction hammer to fall freely to complete the compaction action, which solves the problem that the existing wooden hammer compaction method is too rough and the density and uniformity of the sample are difficult to ensure.

[0004] As described above, the compacting hammer is raised by turning the crossbar by a handle, and the compacting hammer is used to compact the sample in the infiltration cylinder using the principle of gravity. In this technical solution, the compacting hammer cannot be guaranteed to fall vertically into the infiltration cylinder after being raised, and the free-falling compacting hammer has no way to adjust the depth of each compaction. Therefore, it is difficult to ensure uniform compaction of each layer of the sample, especially in deeper or thicker samples, which may lead to local over-compaction or insufficient compaction. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides an integrated visual constant head permeameter device, which solves the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The integrated visual constant head permeameter device includes a base, a support frame is fixedly mounted on the base, a water supply barrel is fixedly mounted on the support frame, a drainage pipe is fixedly connected to the water supply barrel, and a permeation cylinder is fixedly mounted on the base and on one side of the support frame;

[0008] An auxiliary component is provided on the outside of the permeation cylinder, through which the sample is evenly distributed inside the permeation cylinder. The side end surface of the permeation cylinder is fixedly connected to three pressure measuring tubes at different positions, and a scale is fixedly installed on the upper end surface of the base.

[0009] A measuring cylinder is fixedly mounted on the base and on one side of the permeation cylinder. A through pipe is fixedly connected to the side end surface of the permeation cylinder, and an overflow pipe is fixedly connected to the outer side surface of the permeation cylinder.

[0010] The auxiliary component includes a bracket plate fixedly mounted on the base, a motor fixedly mounted on the bracket plate, a rotating disk fixedly mounted on the output shaft of the motor, an adjusting component is provided on the rotating disk, a mounting shaft fixedly mounted on the adjusting component, and a driving rod rotatably mounted on the mounting shaft.

[0011] Preferably, a connecting frame is rotatably mounted on one end of the driving rod away from the mounting shaft, a connecting rod is fixedly mounted on the lower end surface of the connecting frame, a hammer plate is fixedly mounted on the bottom end of the connecting rod, a limiting slide rod is fixedly mounted on the side end surface of the connecting frame, a T-shaped frame is fixedly mounted on the bracket plate, and a limiting slide groove is provided on the inner side surface of the T-shaped frame.

[0012] Preferably, the end of the limiting slide rod away from the connecting frame is slidably installed inside the limiting slide groove, and the hammer head plate is located directly above the permeation cylinder.

[0013] Preferably, the adjustment component includes a mounting groove provided on the rotating disk, a mounting plate is fixedly installed inside the mounting groove, an adjusting screw is rotatably installed on the mounting plate, an adjusting handle is fixedly installed on the top end of the adjusting screw, a lifting screw block is movably installed on the adjusting screw, a limiting block is fixedly installed on the side end face of the lifting screw block, and a limiting groove is provided on the inner side face of the mounting groove.

[0014] Preferably, the installation shaft is fixedly mounted on the lifting screw block, and the limiting block is slidably mounted inside the limiting groove.

[0015] Preferably, the auxiliary component also includes a U-shaped frame plate fixedly mounted on the base, a knocking rod is slidably mounted on the U-shaped frame plate, a limiting ring is fixedly mounted on the knocking rod, a spring is fixedly connected to the limiting ring, a limiting plate is fixedly mounted on the side end face of the limiting ring, a push rod is fixedly mounted on the limiting sliding rod, and an arc-shaped push block is fixedly mounted on the side end face of the push rod.

[0016] Preferably, one end of the spring away from the limiting ring is fixedly connected to the U-shaped frame plate, the spring is located outside the knock rod, and the arc-shaped push block is in sliding contact with the end of the knock rod.

[0017] Preferably, a fixing rod is fixedly installed on the bottom end of the pushing rod, a positioning frame is fixedly installed on the end of the fixing rod away from the pushing rod, auxiliary rotating rods are rotatably installed on both ends of the positioning frame, a U-shaped fixed plate is rotatably installed on the end of the auxiliary rotating rod away from the positioning frame, symmetrically arranged vertical plates are fixedly installed on the base, positioning rods are fixedly installed on the vertical plates, and a knocking head is fixedly installed on the U-shaped fixed plate.

[0018] Preferably, the auxiliary rotating rod is arranged obliquely, and the U-shaped fixed plate is slidably mounted on the positioning rod.

[0019] The present invention provides an integrated visual constant-head permeameter device. Compared with the prior art, it has the following advantages:

[0020] 1. The present invention places the sample into the permeation cylinder, and then drives the rotating disk to rotate through the motor. The mounting shaft on the rotating disk rotates with the rotating disk as the center, and the mounting shaft drives the driving rod to rotate. The driving rod cooperates with the connecting frame, and the limiting of the limiting slide rod and the limiting slide groove. The connecting rod on the connecting frame drives the hammer plate to compact the sample in the permeation cylinder, ensuring that the sample is in a dense state. Through continuous compaction, the gaps in the sample can be reduced, the density of the sample can be improved, and the accuracy and stability of the experimental results can be ensured.

[0021] 2. In the present invention, when the density of the sample compaction needs to be adjusted, the adjusting screw is rotated by the adjusting handle, and the lifting screw on the adjusting screw slides in the limiting groove through the limiting block, thereby adjusting the position of the mounting shaft on the rotating disk, thereby adjusting the position of the driving rod on the mounting shaft, thereby achieving position adjustment of the hammer plate, ensuring that the sample obtains a suitable compaction effect. At the same time, by adjusting the position of the hammer plate, it is also convenient to compact samples at different positions in the permeation cylinder, effectively improving the use effect of the device;

[0022] 3. In the present invention, when the limit slide bar is raised or lowered, the push rod on the limit slide bar drives the arc-shaped push block to move synchronously. The arc-shaped push block cooperates with the knocking bar, and the reaction force of the spring on the knocking bar cooperates with the limit plate to ensure that the knocking bar can knock on the permeation cylinder. The vibration force generated by the knocking makes the sample in the permeation cylinder more uniform and compact, thereby ensuring the accuracy of the experimental results.

[0023] 4. In the present invention, when the push rod is raised or lowered, the positioning frame will be driven to move synchronously through the fixed rod. The auxiliary rotating rod on the positioning frame will make the knocking head on the U-shaped fixed plate knock on the infiltration tube through the cooperation between the U-shaped fixed plate and the positioning rod. By using the knocking head on the basis of the knocking rod to knock on different positions of the infiltration tube, the uniform compaction effect of the sample in the infiltration tube is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 Schematic diagram of the structure of the infiltration tube in the present invention;

[0026] Figure 3 Schematic diagram of the structure of the auxiliary components in the present invention;

[0027] Figure 4 Schematic diagram of the structure of the rotating disk in the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 It is a structural schematic diagram of the U-shaped frame plate in the present invention;

[0030] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0031] Figure 8 It is a structural schematic diagram of the U-shaped fixed plate in the present invention.

[0032] Figure: 1. Base; 2. Support frame; 3. Water supply barrel; 4. Drain pipe; 5. Infiltration cylinder; 6. Pressure measuring tube; 7. Scale; 8. Graduated cylinder; 9. Through pipe; 10. Overflow pipe; 11. Bracket plate; 12. Motor; 13. Rotating plate; 14. Mounting shaft; 15. Drive rod; 16. Connecting frame; 17. Connecting rod; 18. Hammer plate; 19. Limiting slide bar; 20. T-shaped frame; 21. Limiting slide groove; 22. Mounting groove ; 23. Mounting plate; 24. Adjusting screw rod; 25. Adjusting handle; 26. Lifting screw block; 27. Limiting block; 28. Limiting groove; 29. ​​U-shaped frame plate; 30. Knocking rod; 31. Limiting ring; 32. Spring; 33. Limiting plate; 34. Push rod; 35. Arc-shaped push block; 36. Fixed rod; 37. Positioning frame; 38. Auxiliary rotating rod; 39. U-shaped fixed plate; 40. Vertical plate; 41. Positioning rod; 42. Knocking head. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0034] See also Figures 1-8The present invention is an integrated visual constant head permeameter device, comprising a base 1, a support frame 2 is fixedly mounted on the base 1, a water supply barrel 3 is fixedly mounted on the support frame 2, a drainage pipe 4 is fixedly connected to the water supply barrel 3, a permeation cylinder 5 is fixedly mounted on the base 1 and on one side of the support frame 2, an auxiliary component is provided on the outside of the permeation cylinder 5, and the sample is evenly placed inside the permeation cylinder 5 through the auxiliary component, and the side end surface of the permeation cylinder 5 is fixedly connected to three pressure measuring tubes 6 at different positions, a scale 7 is fixedly mounted on the upper end surface of the base 1, and the base 1 is fixed on the permeation cylinder 5. A measuring cylinder 8 is fixedly mounted on one side of the permeation cylinder 5, a through-tube 9 is fixedly connected to the side end face of the permeation cylinder 5, and an overflow pipe 10 is fixedly connected to the outer side face of the permeation cylinder 5. The permeation cylinder 5 is made of a transparent material, and a sealing cover is fixedly connected to one end of the drain pipe 4 away from the water supply barrel 3, which facilitates the sealing of the permeation cylinder 5. Valves are provided on the drain pipe 4 and the through-tube 9, and a waste water barrel is fixedly connected to one end of the overflow pipe 10 away from the permeation cylinder 5. Since the structures not described above are all well known to people in this field, they will not be described in detail here.

[0035] The auxiliary component includes a bracket plate 11 fixedly mounted on the base 1, and a motor 12 is fixedly mounted on the bracket plate 11, and a rotating disk 13 is fixedly mounted on the output shaft of the motor 12, and an adjusting component is provided on the rotating disk 13, and a mounting shaft 14 is fixedly mounted on the adjusting component, and a driving rod 15 is rotatably mounted on the mounting shaft 14, and the driving rod 15 is rotatably mounted on the end of the connecting frame 16 away from the mounting shaft 14, and a connecting rod 17 is fixedly mounted on the lower end surface of the connecting frame 16, and a hammer plate 18 is fixedly mounted on the lower end surface of the connecting frame 16. A limiting slide bar 19 is fixedly mounted on the side end surface of the connecting frame 16, and a T-shaped frame 20 is fixedly mounted on the bracket plate 11. A limiting slide groove 21 is provided on the inner side surface of the T-shaped frame 20, and the limiting slide bar 19 is slidably mounted on the inner side of the limiting slide groove 21 away from the end of the connecting frame 16. The position of the hammer plate 18 is just above the infiltration cylinder 5, wherein the power source of the motor 12 is mounted on the bracket plate 11 to ensure that the motor 12 can work normally.

[0036] In this embodiment, the sample is placed inside the permeation cylinder 5, and then the rotating disk 13 is driven to rotate by the motor 12. The installation shaft 14 on the rotating disk 13 will rotate with the rotating disk 13 as the center. The driving rod 15 is driven to rotate by the installation shaft 14. The driving rod 15 cooperates with the connecting frame 16, and the limiting of the limiting slide bar 19 and the limiting slide groove 21 is utilized. The connecting rod 17 on the connecting frame 16 drives the hammer head plate 18 to compact the sample in the permeation cylinder 5 to ensure that the sample is in a dense state. Through continuous compaction, the gaps in the sample can be reduced, the density of the sample can be improved, and the accuracy and stability of the experimental results can be ensured.

[0037] The adjusting assembly includes a mounting groove 22 provided on the rotating disk 13, a mounting plate 23 is fixedly installed inside the mounting groove 22, an adjusting screw 24 is rotatably installed on the mounting plate 23, an adjusting handle 25 is fixedly installed on the top of the adjusting screw 24, a lifting screw block 26 is movably installed on the adjusting screw 24, a limiting block 27 is fixedly installed on the side end face of the lifting screw block 26, a limiting groove 28 is provided on the inner side face of the mounting groove 22, the mounting shaft 14 is fixedly installed on the lifting screw block 26, and the limiting block 27 is slidably installed inside the limiting groove 28, wherein an anti-reversal mechanism is installed on the adjusting screw 24, and since the anti-reversal mechanism is a technology well known to people in this field, it will not be described in detail here, wherein the lifting screw block 26 and the limiting block 27 are processed as one piece.

[0038] In this embodiment, when the density of the sample compaction needs to be adjusted, the adjusting handle 25 is used to drive the adjusting screw 24 to rotate, and the lifting screw block 26 on the adjusting screw 24 will slide in the limiting groove 28 through the limiting block 27, thereby adjusting the position of the mounting shaft 14 on the rotating disk 13, thereby adjusting the position of the driving rod 15 on the mounting shaft 14, thereby realizing the position adjustment of the hammer head plate 18, ensuring that the sample obtains a suitable compaction effect, and at the same time, by adjusting the position of the hammer head plate 18, it is also convenient to compact the samples at different positions in the infiltration cylinder 5, effectively improving the use effect of the device.

[0039] The auxiliary component also includes a U-shaped frame plate 29 fixedly mounted on the base 1, a knocking rod 30 is slidably mounted on the U-shaped frame plate 29, a limit ring 31 is fixedly mounted on the knocking rod 30, a spring 32 is fixedly connected to the limit ring 31, a limit plate 33 is fixedly mounted on the side end surface of the limit ring 31, a push rod 34 is fixedly mounted on the limit slide 19, an arc-shaped push block 35 is fixedly mounted on the side end surface of the push rod 34, and one end of the spring 32 away from the limit ring 31 is fixedly connected to the U-shaped frame plate 29, the position of the spring 32 is on the outside of the knocking rod 30, and the arc-shaped push block 35 is in sliding contact with the end of the knocking rod 30, wherein the position of the push rod 34 is inside the limiting slide 21, and the push rod 34 is slidably installed with the limiting slide 21. The push rod 34 slides in the limiting slide 21 to ensure the stability of the push rod 34 when it is raised and lowered, wherein the position of the knocking rod 30 is positioned by the limiting plate 33, wherein the push rod 34 and the arc-shaped push block 35 are processed as one piece.

[0040] In this embodiment, when the limiting slide bar 19 is raised or lowered, the push rod 34 on the limiting slide bar 19 will drive the arc-shaped push block 35 to move synchronously. The arc-shaped push block 35 cooperates with the knocking rod 30, and the reaction force of the spring 32 on the knocking rod 30 and the cooperation of the limiting plate 33 to ensure that the knocking rod 30 can knock on the infiltration tube 5. The vibration force generated by the knocking can make the sample in the infiltration tube 5 more uniform and compact, thereby ensuring the accuracy of the experimental results.

[0041] A fixing rod 36 is fixedly installed at the bottom end of the pushing rod 34, and a positioning frame 37 is fixedly installed at the end of the fixing rod 36 away from the pushing rod 34, and auxiliary rotating rods 38 are rotatably installed at both ends of the positioning frame 37, and a U-shaped fixed plate 39 is rotatably installed at the end of the auxiliary rotating rod 38 away from the positioning frame 37. A symmetrically arranged vertical plate 40 is fixedly installed on the base 1, and a positioning rod 41 is fixedly installed on the vertical plate 40. A knocking head 42 is fixedly installed on the U-shaped fixed plate 39. The auxiliary rotating rod 38 is arranged obliquely, and the U-shaped fixed plate 39 is slidably installed on the positioning rod 41.

[0042] In this embodiment, when the push rod 34 is raised or lowered, the positioning frame 37 will be driven to move synchronously through the fixed rod 36. The auxiliary rotating rod 38 on the positioning frame 37 will cooperate with the U-shaped fixed plate 39 and the U-shaped fixed plate 39 and the positioning rod 41 to make the knocking head 42 on the U-shaped fixed plate 39 knock on the infiltration tube 5. By using the knocking head 42 to knock on different positions of the infiltration tube 5 based on the knocking rod 30, the uniform compaction effect of the sample in the infiltration tube 5 is further improved.

[0043] Working principle: When in use, the sample is loaded into the permeation cylinder 5, and then the motor 12 drives the rotating disk 13 to rotate. The mounting shaft 14 on the rotating disk 13 will rotate with the rotating disk 13 as the center, and the mounting shaft 14 drives the driving rod 15 to rotate. By utilizing the cooperation between the driving rod 15 and the connecting frame 16, and the limiting of the limiting slide bar 19 and the limiting slide groove 21, the connecting rod 17 on the connecting frame 16 drives the hammer plate 18 to compact the sample in the permeation cylinder 5, ensuring that the sample is in a dense state.

[0044] When the limit slide 19 is lifted or lowered, the pushing rod 34 on the limit slide 19 will drive the arc-shaped pushing block 35 to move synchronously, and the cooperation of the arc-shaped pushing block 35 and the knocking rod 30, as well as the reaction force of the spring 32 on the knocking rod 30 and the cooperation of the limiting plate 33, will ensure that the knocking rod 30 can knock on the infiltration tube 5. When the pushing rod 34 is lifted or lowered, it will drive the positioning frame 37 to move synchronously through the fixing rod 36, and the auxiliary rotating rod 38 on the positioning frame 37 will make the knocking head 42 on the U-shaped fixed plate 39 knock on the infiltration tube 5 through the cooperation between the U-shaped fixed plate 39 and the positioning rod 41. By knocking different positions of the infiltration tube 5 with the knocking head 42 on the basis of the knocking rod 30, the uniform compaction effect of the sample in the infiltration tube 5 is improved.

[0045] When the density of the sample compaction needs to be adjusted, the adjusting screw 24 is rotated by the adjusting handle 25, and the lifting screw block 26 on the adjusting screw 24 will slide in the limit groove 28 through the limit block 27, thereby adjusting the position of the installation shaft 14 on the rotating disk 13, thereby adjusting the position of the driving rod 15 on the installation shaft 14, thereby achieving the position adjustment of the hammer plate 18, ensuring that the sample obtains a suitable compaction effect. At the same time, by adjusting the position of the hammer plate 18, it is also convenient to compact samples at different positions in the permeation cylinder 5;

[0046] After the sample is loaded, the device is operated using conventional experimental steps of a constant head permeameter in the prior art to complete the entire experiment.

[0047] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An integrated visual constant head permeameter device, comprising a base (1), characterized in that: A support frame (2) is fixedly mounted on the base (1), a water supply barrel (3) is fixedly mounted on the support frame (2), a drainage pipe (4) is fixedly connected to the water supply barrel (3), and a permeation cylinder (5) is fixedly mounted on the base (1) and on one side of the support frame (2); An auxiliary component is provided on the outside of the permeation cylinder (5), and the sample is evenly placed inside the permeation cylinder (5) through the auxiliary component. The side end surface of the permeation cylinder (5) is fixedly connected to three pressure measuring tubes (6) at different positions. The upper end surface of the base (1) is fixedly mounted with a scale (7); A measuring cylinder (8) is fixedly mounted on the base (1) and on one side of the permeation cylinder (5); a through pipe (9) is fixedly connected to the side end surface of the permeation cylinder (5); and an overflow pipe (10) is fixedly connected to the outer side surface of the permeation cylinder (5); The auxiliary component comprises a bracket plate (11) fixedly mounted on the base (1), a motor (12) fixedly mounted on the bracket plate (11), a rotating disk (13) fixedly mounted on the output shaft of the motor (12), an adjusting component provided on the rotating disk (13), a mounting shaft (14) fixedly mounted on the adjusting component, a driving rod (15) rotatably mounted on the mounting shaft (14), a connecting frame (16) rotatably mounted on one end of the driving rod (15) away from the mounting shaft (14), a connecting rod (17) fixedly mounted on the lower end surface of the connecting frame (16), a hammer plate (18) fixedly mounted on the bottom end of the connecting rod (17), a limiting slide rod (19) fixedly mounted on the side end surface of the connecting frame (16), a T-shaped frame (20) fixedly mounted on the bracket plate (11), and a limiting slide groove (21) provided on the inner side surface of the T-shaped frame (20); The adjustment assembly comprises a mounting groove (22) provided on the rotating disk (13), a mounting plate (23) being fixedly installed inside the mounting groove (22), an adjusting screw rod (24) being rotatably installed on the mounting plate (23), an adjusting handle (25) being fixedly installed on the top end of the adjusting screw rod (24), a lifting screw block (26) being movably installed on the adjusting screw rod (24), a limiting block (27) being fixedly installed on the side end surface of the lifting screw block (26), and a limiting groove (28) being provided on the inner side surface of the mounting groove (22); The auxiliary component further comprises a U-shaped frame plate (29) fixedly mounted on the base (1), a knocking rod (30) being slidably mounted on the U-shaped frame plate (29), a limiting ring (31) being fixedly mounted on the knocking rod (30), a spring (32) being fixedly connected to the limiting ring (31), a limiting plate (33) being fixedly mounted on the side end face of the limiting ring (31), a pushing rod (34) being fixedly mounted on the limiting sliding rod (19), an arc-shaped pushing block (35) being fixedly mounted on the side end face of the pushing rod (34), and the pushing rod (34) being fixedly mounted on the side end face of the pushing rod (34). ) is fixedly mounted on the bottom end of the base (1), a positioning frame (37) is fixedly mounted on the end of the positioning frame (37) away from the push rod (34), auxiliary rotating rods (38) are rotatably mounted on both ends of the positioning frame (37), and a U-shaped fixed plate (39) is rotatably mounted on the end of the auxiliary rotating rod (38) away from the positioning frame (37), symmetrically arranged vertical plates (40) are fixedly mounted on the base (1), a positioning rod (41) is fixedly mounted on the vertical plate (40), and a knocking head (42) is fixedly mounted on the U-shaped fixed plate (39).

2. The integrated visual constant water head permeameter device according to claim 1, characterized in that: The end of the limiting slide rod (19) away from the connecting frame (16) is slidably mounted inside the limiting slide groove (21), and the hammer plate (18) is located directly above the permeation cylinder (5).

3. The integrated visual constant head permeameter device according to claim 1, characterized in that: The mounting shaft (14) is fixedly mounted on the lifting screw block (26), and the limiting block (27) is slidably mounted inside the limiting groove (28).

4. The integrated visual constant head permeameter device according to claim 1, characterized in that: One end of the spring (32) away from the limiting ring (31) is fixedly connected to the U-shaped frame plate (29), the position of the spring (32) is located outside the knocking rod (30), and the arc-shaped push block (35) is in sliding contact with the end of the knocking rod (30).

5. The integrated visual constant head permeameter device according to claim 1, characterized in that: The auxiliary rotating rod (38) is arranged in an inclined manner, and the U-shaped fixed plate (39) is slidably mounted on the positioning rod (41).

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