Concrete piston displacement measuring device and pumping efficiency testing system
By introducing a guide wheel device and a correction structure into the concrete piston displacement measurement device, the problem of inaccurate measurement caused by rotation of the concrete piston is solved, and the accurate measurement of the linear displacement of the concrete piston is achieved.
Patent Information
- Application Number
- CN202323453251.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-18
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2033-12-18
AI Technical Summary
Existing concrete piston displacement measurement devices cannot accurately measure the linear displacement of concrete pistons, especially when the concrete piston rotates circumferentially.
A concrete piston displacement measuring device is designed, including a wire displacement sensor, a guide wheel device and a correction structure. The main body of the pull-line displacement sensor is installed on the water tank, and the guide wheel device guides the pull-line to connect to the piston flange. The correction structure is connected through the reference component and the adjustment component to correct the posture of the adjustment component to ensure that the linear displacement of the concrete piston is consistent with the stretching amount of the tensioning line. .
Through the use of the corrective structure, the linear displacement of the concrete piston can be accurately measured, solving the problem of inaccurate measurement caused by the rotation of the concrete piston.
Smart Images
Figure CN222514325U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete pumping, in particular to a concrete piston displacement measuring device and a pumping efficiency testing system. Background Art
[0002] The pumping oil cylinder includes a concrete cylinder, a concrete piston, a piston flange and a piston rod. The concrete cylinder is axially mounted on the side wall of the water tank, the concrete piston is located in the concrete cylinder, the piston flange is mounted on the side of the concrete piston facing the water tank, one end of the piston rod is connected to the side of the piston flange facing the water tank, the piston rod is located in the concrete cylinder and the water tank, and the piston rod can drive the piston flange to move back and forth, so that the concrete piston moves back and forth in the concrete cylinder and between the water tank and the eyeglass plate. When the concrete piston moves to the water tank or the eyeglass plate, the concrete piston will reverse and then move in the opposite direction. However, during the reversing process of the concrete piston, the concrete piston may rotate circumferentially.
[0003] The existing concrete piston displacement measuring device includes a wire displacement sensor for detecting the linear displacement data of the concrete piston. The wire of the wire displacement sensor is connected to the piston flange, and the movement of the piston flange drives the wire of the wire displacement sensor to move, thereby causing the wire displacement sensor to record the linear displacement data of the concrete piston. However, if the concrete piston rotates circumferentially, the linear displacement of the concrete piston will be inconsistent with the elongation of the wire, resulting in the inability of the wire displacement sensor to accurately monitor the linear displacement of the concrete piston. Utility Model Content
[0004] The utility model aims to overcome the problem that a concrete piston displacement measuring device cannot accurately measure the linear displacement of a concrete piston due to the rotation of the concrete piston.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a concrete piston displacement measuring device on the one hand, which comprises a wire displacement sensor, a guide wheel device and a correction structure; the wire displacement sensor comprises a sensor body and a wire, the sensor body is used to be installed on a water tank, the guide wheel device is used to guide the wire to connect the piston flange, and the correction structure comprises a reference component for being fixedly installed in the water tank and an adjustment component for being fixedly installed on the piston flange and moving with the piston flange, and the adjustment component and the reference component can be connected so that the rotating adjustment component can be corrected.
[0006] In some embodiments, the adjustment component can be inserted into the reference component so that the adjustment component can be corrected.
[0007] In some embodiments, the reference component includes two guide plates installed in the water tank with horizontal intervals, and a guide plate is provided at the end of the guide plate facing the piston flange; and the spacing between the two guide plates gradually increases along the direction from the end of the guide plate facing away from the piston flange to the end facing the piston flange; the adjustment component inserted between the two guide plates through the area between the two guide plates can be corrected by the two guide plates.
[0008] In some embodiments, the adjusting component includes a vertically extending adjusting rod and a connecting piece installed at the bottom end of the adjusting rod, the adjusting rod can be inserted between the two guide plates, and the connecting piece is installed on the piston flange; in the vertical direction, the length of the adjusting rod is greater than the width of the guide plate, and the connecting piece is located below the guide plate and the guide plate.
[0009] In some embodiments, the concrete piston displacement measuring device further comprises a base plate mounted on the top of the water tank, the wire displacement sensor is mounted on the base plate, and the position of the wire displacement sensor is adjustable.
[0010] In some embodiments, the concrete piston displacement measuring device also includes a slider located between the base plate and the wire displacement sensor, and first long holes are respectively provided on both sides of the slider perpendicular to the axial direction of the piston flange, and the length direction of the first long hole extends along the axial direction of the piston flange, and the wire displacement sensor is installed between the two first long holes; a second long hole is provided on the side of the base plate facing the piston flange, and the length direction is perpendicular to the axial direction of the piston flange, and the first long hole and the second long hole are connected by a bolt assembly.
[0011] In some embodiments, a mounting platform located between two first long holes is provided on the top of the slider; the height of the mounting platform gradually decreases in the direction from the side of the mounting platform facing the piston flange to the side of the mounting platform facing away from the piston flange, the sensor body is mounted on the mounting platform, and the wire pulling outlet of the sensor body faces the guide wheel device; and / or, the number of guide wheel devices is two, and the two guide wheel devices are respectively a first guide wheel device and a second guide wheel device, the first guide wheel device is installed on the side of the substrate facing away from the piston flange, the second guide wheel is installed in the water tank, the position of the second guide wheel device is lower than the position of the first guide wheel device, and the positions of the first guide wheel device and the second guide wheel device are adjustable.
[0012] In some embodiments, a third long hole whose length direction is perpendicular to the axial direction of the piston flange is provided on the side of the base plate facing away from the piston flange, and a connecting hole is provided on the first guide wheel device. The third long hole and the connecting hole are connected by a bolt assembly.
[0013] In some embodiments, the second guide wheel device includes a first mounting frame, a second mounting frame, a second guide wheel mounting frame and a second guide wheel, the first mounting frame is fixedly mounted on the pull rod at the top of the water tank, the second mounting frame is height-adjustably mounted on the first mounting frame, the second guide wheel mounting frame can be horizontally movably mounted on the second mounting frame, and the second guide wheel is mounted on the second guide wheel mounting frame.
[0014] On the other hand, the utility model further provides a pumping efficiency testing system, which comprises the concrete piston displacement measuring device of the above embodiment.
[0015] The technical solution of the utility model has the following beneficial effects:
[0016] The sensor body of the wire displacement sensor is installed on the water tank, and the guide wheel device guides the wire of the wire displacement sensor to be connected to the side of the piston flange facing the water tank. The reference component of the correction structure is fixedly installed in the water tank, and the adjustment component of the correction structure is fixedly installed on the side of the piston flange facing the water tank. If the concrete piston rotates, the posture of the adjustment component connected to the concrete piston through the piston flange will also shift. However, when the piston flange drives the concrete piston to move to the water tank, the adjustment component on the piston flange is connected to the reference component in the water tank, and the reference component can correct the posture of the adjustment component. The adjustment component with the corrected posture can drive the concrete piston to be corrected, so that the linear displacement of the concrete piston is consistent with the elongation of the wire, so that the wire displacement sensor can accurately measure the linear displacement of the concrete piston. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the installation of a concrete piston displacement measuring device in an embodiment of the utility model;
[0018] Figure 2 It is a schematic diagram of the installation of a concrete piston displacement measuring device in an embodiment of the utility model;
[0019] Figure 3 It is a three-dimensional schematic diagram of a concrete piston displacement measuring device in an embodiment of the utility model;
[0020] Figure 4 It is a three-dimensional schematic diagram of a concrete piston displacement measuring device in an embodiment of the utility model;
[0021] Figure 5 It is a three-dimensional schematic diagram of a correction structure in an embodiment of the utility model;
[0022] Figure 6 This is a schematic diagram of the installation of the guide wheel device in one embodiment of the utility model;
[0023] Figure 7 It is a schematic diagram of the installation of a concrete piston displacement measuring device in one embodiment of the utility model.
[0024] Description of Reference Numerals
[0025] 1. Pull-wire displacement sensor; 2. Guide wheel device; 21. First guide wheel device; 211. Connecting hole; 212. First guide wheel mounting frame; 213. First guide wheel; 22. Second guide wheel device; 221. First mounting plate; 222. Second mounting plate; 223. Third mounting plate; 224. Fourth mounting plate; 225. Second guide wheel mounting frame; 226. Second guide wheel; 3. Correction structure; 31. Reference component; 311. Guide plate; 312. Guide plate; 32. Adjustment component; 321. Adjustment rod; 322. Connector; 4. Base plate; 41. Second long hole; 42. Third long hole; 5. Slider; 51. First long hole; 52. Mounting table; 6. Water tank; 61. Pull rod; 62. Top opening; 7. Pumping cylinder; 71. Concrete cylinder; 72. Piston flange; 73. Piston rod; 74. Concrete piston; 75. Eyeglass plate. DETAILED DESCRIPTION
[0026] The features and exemplary embodiments of various aspects of the utility model will be described in detail below. In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the utility model, rather than to limit the utility model. For those skilled in the art, the utility model can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the utility model by showing examples of the utility model.
[0027] like Figures 1 to 6 As shown, the utility model provides a concrete piston displacement measuring device, which includes a wire displacement sensor 1, a guide wheel device 2 and a correction structure 3. The wire displacement sensor 1 includes a sensor body and a wire, the sensor body is used to be installed in the water tank 6, and the guide wheel device 2 is used to guide the wire to connect the piston flange 72. Of course, the guide wheel device 2 can be installed in the water tank 6. The correction structure 3 includes a reference component 31 for fixed installation in the water tank 6 and an adjustment component 32 for fixed installation on the piston flange 72 and moving with the piston flange 72, and the adjustment component 32 and the reference component 31 can be connected so that the rotating adjustment component 32 is corrected.
[0028] Specifically, the sensor body of the wire displacement sensor 1 is installed on the water tank 6, and the guide wheel device 2 guides the wire of the wire displacement sensor 1 to be connected to the side of the piston flange 72 facing the water tank 6. The reference component 31 of the correction structure 3 is fixedly installed in the water tank 6, and the adjustment component 32 of the correction structure 3 is fixedly installed on the side of the piston flange 72 facing the water tank 6. If the concrete piston 74 rotates, the posture of the adjustment component 32 connected to the concrete piston 74 through the piston flange 72 will also be offset. However, when the piston flange 72 drives the concrete piston 74 to move to the water tank 6, the adjustment component 32 on the piston flange 72 is connected to the reference component 31 in the water tank 6, and the reference component 31 can correct the posture of the adjustment component 32. The adjusted posture of the adjustment component 32 can drive the concrete piston 74 to be corrected, so that the linear displacement of the concrete piston 74 is consistent with the elongation of the wire, so that the wire displacement sensor 1 can accurately measure the linear displacement of the concrete piston 74.
[0029] In some embodiments of the present invention, the pull wire can be connected to the piston flange 72 via a magnetic block, and the connection method is simple and convenient.
[0030] In some embodiments of the present invention, the adjustment component 32 can be inserted into the reference component 31 so that the adjustment component 32 can be corrected.
[0031] Specifically, when the adjusting component 32 is inserted into the reference component 31 , the adjusting component 32 is corrected by the reference component 31 , thereby driving the concrete piston 74 to be corrected.
[0032] like Figure 5 As shown, in some embodiments of the present invention, the reference component 31 includes two guide plates 311 installed horizontally and spaced apart in the water tank 6, and a guide plate 312 is provided at one end of the guide plate 311 facing the piston flange 72; and along the direction from the end of the guide plate 311 facing away from the piston flange 72 to the end facing the piston flange 72, the spacing between the two guide plates 312 gradually increases. The adjustment component 32 inserted between the two guide plates 311 through the area between the two guide plates 312 can be corrected by the two guide plates 311.
[0033] Specifically, the length direction of the guide plate 311 extends along the axial direction of the piston flange 72; in other words, the length direction of the guide plate 311 extends along the width direction of the water tank 6. The two guide plates 311 and the two guide plates 312 are spaced apart along the length direction of the water tank 6. The guide plates 311 and the guide plates 312 can be fixedly installed below the top wall of the water tank 6. The guide plates 311 and the guide plates 312 can be integrally formed. Of course, the two guide plates 311 are arranged in parallel, and the two guide plates 312 are arranged symmetrically. The guide plate 312 can be an arc-shaped plate or a flat plate, as long as the distribution form of the two guide plates 312 is gradually widened outward. There is a correction channel between the two guide plates 311, and there is a guide channel between the two guide plates 312. The guide plate 312 can guide the rotating adjustment component 32 to enter between the two guide plates 311. The sides of the two guide plates 311 facing each other are the inner side surfaces. When the adjusting component 32 is inserted between the two guide plates 311 , the inner side of the guide plate 311 is attached to the adjusting component 32 , and the guide plate 311 can enable the adjusting component 32 to drive the concrete piston 74 to restore the initial posture.
[0034] As shown in Figure 5, in some embodiments of the present invention, the adjusting component 32 includes an adjusting rod 321 extending vertically and a connecting piece 322 installed at the bottom end of the adjusting rod 321, the adjusting rod 321 can be inserted between the two guide plates 311, and the connecting piece 322 is installed on the piston flange 72. In the vertical direction, the length of the adjusting rod 321 is greater than the width of the guide plate 311, and the connecting piece 322 is located below the guide plate 311 and the guide plate 312.
[0035] Specifically, the adjusting rod 321 and the piston flange 72 are spaced apart along the axial direction of the piston flange 72 to facilitate the adjusting rod 321 to be inserted between the two guide plates 311. The adjusting rod 321 is mounted on the piston flange 72 via a connecting piece 322 at its bottom end. The connecting piece 322 may be a connecting block, and the connecting block and the piston flange 72 may be connected by bolts. The connecting piece 322 is located below the guide plate 311 and the guide plate 312, so the guide plate 311 and the guide plate 312 do not interfere with the movement of the connecting piece 322. The adjusting rod 321 is preferably a round rod with less resistance.
[0036] like Figures 1 to 3 As shown, in some embodiments of the present utility model, the concrete piston displacement measuring device further includes a base plate 4 mounted on the top of the water tank 6, the wire displacement sensor 1 is mounted on the base plate 4, and the position of the wire displacement sensor 1 is adjustable.
[0037] Specifically, the water tank 6 is a rectangular parallelepiped, and the water tank 6 includes a top wall, a bottom wall and four side walls. The top wall of the water tank 6 is provided with a top opening 62 connected to the internal chamber. The substrate 4 is mounted on the top wall of the water tank 6. The substrate 4 facilitates the installation and position adjustment of the wire displacement sensor 1. In some embodiments, the guide plate 311 and the guide plate 312 are both fixedly connected to the bottom surface of the substrate 4.
[0038] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments of the utility model, the concrete piston displacement measuring device further includes a slider 5 located between the base plate 4 and the wire displacement sensor 1, and first long holes 51 are respectively provided on both sides of the slider 5 perpendicular to the axial direction of the piston flange 72, and the length direction of the first long hole 51 extends along the axial direction of the piston flange 72, and the wire displacement sensor 1 is installed between the two first long holes 51. A second long hole 41 with a length direction perpendicular to the axial direction of the piston flange 72 is provided on the side of the base plate 4 facing the piston flange 72, and the first long hole 51 and the second long hole 41 are connected by a bolt assembly.
[0039] Specifically, the first long hole 51 of the slider 5 can be arranged on both sides in the length direction thereof, the length direction of the first long hole 51 extends along the width direction of the slider 5, and the first long hole 51 vertically penetrates the slider 5. The length direction of the second long hole 41 extends along the length direction of the substrate 4, and the second long hole 41 vertically penetrates the substrate 4. The length of the second long hole 41 is greater than the length of the slider 5, so both first long holes 51 can be matched with the second long hole 41. Of course, the length direction of the slider 5, the length direction of the water tank 6 and the length direction of the substrate 4 are consistent, and the width direction of the slider 5, the width direction of the water tank 6, the width direction of the substrate 4 and the axial direction of the piston flange 72 are consistent. When the bolt assembly is loosened, the position of the bolt assembly in the first long hole 51 and the second long hole 41 is adjusted to adjust the position of the wire displacement sensor 1; then the bolt assembly is tightened, and the position of the wire displacement sensor 1 on the substrate 4 is fixed. The wire displacement sensor 1 can adjust its position through the slider 5 so that the wire of the wire displacement sensor 1 is directly opposite to the wire winding part of the guide wheel device 2 to avoid the wire being stuck in the gap between the components of the guide wheel device 2.
[0040] like Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments of the utility model, a mounting platform 52 located between two first long holes 51 is provided at the top of the slider 5; in the direction from the side of the mounting platform 52 facing the piston flange 72 to the side facing away from the piston flange 72, the height of the mounting platform 52 gradually decreases, the sensor body is installed on the mounting platform 52, and the wire outlet of the sensor body faces the guide wheel device 2.
[0041] Specifically, when the sensor body is mounted on the mounting platform 52 , the wire outlet of the sensor body faces the guide wheel device 2 , so that the wire can be wound around the wire winding portion of the guide wheel device 2 .
[0042] like Figure 6 As shown, in some embodiments of the utility model, the number of guide wheel devices 2 is two, and the two guide wheel devices 2 are respectively a first guide wheel device 21 and a second guide wheel device 22, the first guide wheel device 21 is installed on the side of the base plate 4 facing away from the piston flange 72, the second guide wheel 226 is installed in the water tank 6, the position of the second guide wheel device 22 is lower than the position of the first guide wheel device 21, and the positions of the first guide wheel device 21 and the second guide wheel device 22 are adjustable.
[0043] Specifically, by adjusting the positions of the first guide wheel device 21 and the second guide wheel device 22, the pull wire can be directly opposite the pull wire winding part of the first guide wheel device 21 and the pull wire winding part of the second guide wheel device 22, so as to avoid the pull wire being stuck in the first guide wheel device 21 or the second guide wheel device 22 due to position displacement.
[0044] like Figure 6 As shown, in some embodiments of the utility model, a third long hole 42 whose length direction is perpendicular to the axial direction of the piston flange 72 is provided on the side of the base plate 4 facing away from the piston flange 72, and a connecting hole 211 is provided on the first guide wheel device 21, and the third long hole 42 and the connecting hole 211 are connected by a bolt assembly.
[0045] Specifically, the third long hole 42 vertically penetrates the base plate 4, and the third long hole 42 is parallel to the second long hole 41. The first guide wheel device 21 includes a first guide wheel mounting frame 212 and a first guide wheel 213, the first guide wheel 213 is mounted on one end of the first guide wheel mounting frame 212, and the other end of the first guide wheel mounting frame 212 is provided with a connecting hole 211. The first guide wheel device 21 extends from the side of the base plate 4 facing away from the piston flange 72 in a direction away from the piston flange 72. By loosening the bolt assembly, the position of the first guide wheel device 21 can be adjusted along the third long hole 42; by tightening the bolt assembly, the position of the first guide wheel device 21 is fixed. The pull wire can be wound around the radial outer side of the first guide wheel 213, and an annular groove can also be provided on the radial outer side of the first guide wheel 213 to facilitate the positioning of the pull wire.
[0046] like Figure 6As shown, in some embodiments of the utility model, the second guide wheel device 22 includes a first mounting frame, a second mounting frame, a second guide wheel mounting frame 225 and a second guide wheel 226. The first mounting frame is fixedly mounted on the pull rod 61 at the top of the water tank 6, the second mounting frame is height-adjustably mounted on the first mounting frame, the second guide wheel mounting frame 225 can be horizontally movably mounted on the second mounting frame, and the second guide wheel 226 is mounted on the second guide wheel mounting frame 225.
[0047] Specifically, the first mounting frame may further include a first mounting plate 221, a second mounting plate 222 and a third mounting plate 223, wherein the first mounting plate 221 and the second mounting plate 222 extend horizontally, are vertically spaced apart, and can be mounted and fixed on both vertical sides of the pull rod 61. The first mounting plate 221 and the second mounting plate 222 are connected by a vertically extending third mounting plate 223, and a vertically extending fourth long hole is provided on the third mounting plate 223. The second mounting frame includes a fourth mounting plate 224, wherein a first mounting hole is provided on the fourth mounting plate 224, and the first mounting hole and the fourth long hole are connected by a bolt assembly. The fourth mounting plate 224 extends horizontally, and a horizontally extending fifth long hole is provided on the fourth mounting plate 224, and the axial direction of the fifth long hole is consistent with the axial direction of the piston flange 72. The second guide wheel mounting frame 225 is mounted on the side of the fourth mounting plate 224 facing away from the piston flange 72. The second guide wheel mounting frame 225 is provided with a second mounting hole, and the second mounting hole is connected to the fifth slotted hole by a bolt assembly. The second guide wheel 226 is mounted on the side of the second guide wheel 226 facing away from the piston flange 72. The pull wire can be wound around the radial outer side of the second guide wheel 226, and an annular groove can also be provided on the radial outer side of the second guide wheel 226 to facilitate the positioning of the pull wire.
[0048] The utility model also provides a pumping efficiency testing system, which comprises the concrete piston displacement measuring device of the above embodiment.
[0049] Specifically, since the pumping efficiency test system adopts the above-mentioned concrete piston displacement measuring device, it has the beneficial effects brought by all the above-mentioned embodiments.
[0050] like Figure 7As shown, in some embodiments, the pumping efficiency test system includes a concrete piston displacement measuring device, a pumping oil cylinder 7 and a water tank 6. The pumping oil cylinder 7 is further a concrete cylinder 71, one end of the concrete cylinder 71 is axially mounted on the side of the water tank 6, and the other end of the concrete cylinder 71 is provided with a glasses plate 75. A concrete piston 74 is provided in the concrete cylinder 71, and a piston flange 72 is provided on the side of the concrete piston 74 facing the water tank 6, and the side of the piston flange 72 facing the water tank 6 is connected to the end of the piston rod 73, and the piston rod 73 passes through the water tank 6 along the axial direction of the concrete cylinder 71. The various components of the concrete piston displacement measuring device are installed in corresponding positions according to the description of the above embodiment.
[0051] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above are only preferred implementation methods of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the utility model, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A concrete piston displacement measuring device, characterized in that: It comprises a wire displacement sensor (1), a guide wheel device (2) and a correction structure (3); The wire displacement sensor (1) comprises a sensor body and a wire, wherein the sensor body is used to be installed on a water tank (6), the guide wheel device (2) is used to guide the wire to connect to a piston flange (72), and the correction structure (3) comprises a reference component (31) used to be fixedly installed in the water tank (6) and an adjustment component (32) used to be fixedly installed on the piston flange (72) and move with the piston flange (72), and the adjustment component (32) and the reference component (31) can be connected so that the rotating adjustment component (32) can be corrected.
2. The concrete piston displacement measuring device according to claim 1 is characterized in that: The adjustment member (32) can be inserted into the reference member (31) so that the adjustment member (32) can be corrected.
3. The concrete piston displacement measuring device according to claim 2 is characterized in that: The reference component (31) comprises two guide plates (311) installed in the water tank (6) at a horizontal interval, and a guide plate (312) is provided at one end of the guide plate (311) facing the piston flange (72); and the distance between the two guide plates (312) gradually increases along the direction from the end of the guide plate (311) facing away from the piston flange (72) to the end facing the piston flange (72); The adjusting component (32) inserted between the two guide plates (311) through the area between the two guide plates (312) can be corrected by the two guide plates (311).
4. The concrete piston displacement measuring device according to claim 3 is characterized in that: The adjusting component (32) comprises an adjusting rod (321) extending vertically and a connecting piece (322) installed at the bottom end of the adjusting rod (321); the adjusting rod (321) can be inserted between the two guide plates (311); the connecting piece (322) is installed on the piston flange (72); in the vertical direction, the length of the adjusting rod (321) is greater than the width of the guide plate (311), and the connecting piece (322) is located below the guide plate (311) and the guide plate (312).
5. The concrete piston displacement measuring device according to claim 1, characterized in that: The concrete piston displacement measuring device further comprises a base plate (4) mounted on the top of the water tank (6), the wire displacement sensor (1) being mounted on the base plate (4), and the position of the wire displacement sensor (1) being adjustable.
6. The concrete piston displacement measuring device according to claim 5, characterized in that: The concrete piston displacement measuring device also includes a slider (5) located between the base plate (4) and the wire displacement sensor (1), wherein the slider (5) is provided with first long holes (51) on both sides perpendicular to the axial direction of the piston flange (72), the length direction of the first long holes (51) extending along the axial direction of the piston flange (72), and the wire displacement sensor (1) is installed between the two first long holes (51); the base plate (4) is provided with a second long hole (41) on the side facing the piston flange (72), the length direction of which is perpendicular to the axial direction of the piston flange (72), and the first long hole (51) and the second long hole (41) are connected by a bolt assembly.
7. The concrete piston displacement measuring device according to claim 6, characterized in that: A mounting platform (52) located between the two first long holes (51) is provided at the top of the slider (5); the height of the mounting platform (52) gradually decreases from the side of the mounting platform (52) facing the piston flange (72) to the side facing away from the piston flange (72), the sensor body is mounted on the mounting platform (52), and the wire outlet of the sensor body faces the guide wheel device (2); and / or, The number of the guide wheel devices (2) is two, and the two guide wheel devices (2) are respectively a first guide wheel device (21) and a second guide wheel device (22); the first guide wheel device (21) is installed on a side of the base plate (4) facing away from the piston flange (72); the second guide wheel (226) is installed in the water tank (6); the position of the second guide wheel device (22) (2) is lower than that of the first guide wheel device (21); and the positions of the first guide wheel device (21) and the second guide wheel device (22) are adjustable.
8. The concrete piston displacement measuring device according to claim 7, characterized in that: A third long hole (42) is provided on the side of the base plate (4) facing away from the piston flange (72), the length direction of which is perpendicular to the axial direction of the piston flange (72); a connecting hole (211) is provided on the first guide wheel device (21); and the third long hole (42) and the connecting hole (211) are connected by a bolt assembly.
9. The concrete piston displacement measuring device according to claim 7, characterized in that: The second guide wheel device (22) comprises a first mounting frame, a second mounting frame, a second guide wheel mounting frame (225) and a second guide wheel (226), wherein the first mounting frame is fixedly mounted on a pull rod (61) at the top of the water tank (6), the second mounting frame is height-adjustably mounted on the first mounting frame, the second guide wheel mounting frame (225) is horizontally movably mounted on the second mounting frame, and the second guide wheel (226) is mounted on the second guide wheel mounting frame (225).
10. A pumping efficiency test system, characterized in that: The pumping efficiency testing system comprises the concrete piston displacement measuring device according to any one of claims 1-9.