A portable water flow velocity detection device for water conservancy projects

Abstract

The present invention relates to a detection device, and in particular to a portable water flow rate detection device for water conservancy projects. The technical problem of the present invention is to provide a portable water flow rate detection device for water conservancy projects that has a lifting function and is relatively stable. The technical solution is as follows: A portable water flow rate detection device for water conservancy projects includes: a bottom plate and a support column, a support column is provided in the middle of the top of the bottom plate; a display, a display is provided on one side of the upper part of the support column; a support mechanism, a support mechanism is provided in the middle of the support column; a telescopic mechanism, a telescopic mechanism is provided on the other side of the upper part of the support mechanism. According to the direction of the water flow, the present invention rotates the connecting disk, drives the detector and the first card block to rotate, so that the first card block rotates to align with the groove on the connecting block, and under the action of the first spring, drives the connecting disk, the detector and the first card block to move upward, thereby achieving the effect of adjusting the direction of the detector.

Description

Technical Field

[0001] The invention relates to a detection device, in particular to a portable water flow rate detection device used in water conservancy projects. Background Art

[0002] With the continuous development of social economy and the continuous advancement of science and technology, the problem of dam water level has attracted people's great attention. At present, the dam displays the water level warning line to warn the current water level. This method cannot meet the staff's all-weather monitoring of water flow, and it cannot remind the staff to make early warning work in advance. The existing water flow detection equipment is too large and inconvenient for people to move and carry. It is difficult to fully detect the speed of the water flow, which easily increases people's workload and other problems.

[0003] In summary, it is necessary to design a portable water flow rate detection device for water conservancy projects that has a lifting function and is relatively stable, so as to solve the above problems. Summary of the invention

[0004] In order to overcome the shortcomings of existing water flow detection equipment, which is too large, inconvenient for people to move and carry, and difficult to fully detect the speed of water flow, the technical problem of the present invention is to provide a portable water flow velocity detection device for water conservancy projects that has a lifting function and is highly stable.

[0005] The technical solution is as follows: A portable water flow rate detection device for water conservancy projects, comprising: a base plate and a support column, a support column is provided in the middle of the top of the base plate; a display, a display is provided on one side of the upper part of the support column; a support mechanism, a support mechanism is provided in the middle of the support column; a telescopic mechanism, a telescopic mechanism is provided on the other side of the upper part of the support mechanism; a steering mechanism, a steering mechanism is provided on the lower side of the telescopic mechanism; a detector, a detector is provided on the lower side of the steering mechanism.

[0006] Optionally, the supporting mechanism includes: a limit block, a limit block is provided on the upper side of the supporting column; a supporting frame, a supporting frame is provided between the other side of the upper part of the supporting column and the limit block; a fixing ring, a fixing ring is slidably provided in the middle part of the supporting column; a first rotating seat, three first rotating seats are evenly spaced outside the fixing ring; a support rod, a support rod is rotatably provided on the first rotating seat; a torsion spring, torsion springs are symmetrically provided between the support rod and the first rotating seat, and the torsion springs are all sleeved on the first rotating seat.

[0007] Optionally, the telescopic mechanism includes: a cylinder, a cylinder is provided on the inner side of the support frame; a guide plate, a guide plate is provided on the top of the support frame; a first guide rod, a first guide rod is symmetrically provided on the inner side of the guide plate; a sliding rod, a sliding rod is slidably provided between one side of the first guide rod, and the sliding rod is connected to the piston rod of the cylinder.

[0008] Optionally, the steering mechanism includes: a connecting block, a connecting block is slidably provided on one side of the sliding rod, and four grooves are opened on the connecting block; a second guide rod, a second guide rod is rotatably provided between the connecting block and the sliding rod; a connecting disk, a connecting disk is provided at the bottom of the second guide rod, and the connecting disk is connected to the detector; a first spring, a first spring is provided between the connecting disk and the connecting block, and the first spring is sleeved on the second guide rod; a first clamping block, a first clamping block is provided on the top of the connecting disk, and the first clamping block cooperates with the groove on the connecting block.

[0009] Optionally, a fixed component is also included, which includes: a first guide block, three first guide blocks are evenly spaced on the outer side of the lower part of the support column; a third guide rod, a third guide rod is slidably provided on the inner side of the first guide block; a second clamping block, a second clamping block is provided at the bottom of the third guide rod, and the second clamping block is slidably connected to the bottom plate; a second spring, a second spring is provided between the second clamping block and the first guide block, and the second spring is sleeved on the third guide rod; an arc-shaped rack, an arc-shaped rack is provided on the middle part of the outer side of the support rod, and the arc-shaped rack is slidably matched with the support column; a second swivel seat, three second swivel seats are evenly spaced on the middle upper side of the top of the bottom plate; a gear column, a gear column is rotatably provided on the second swivel seat, and the gear column is meshed with the arc-shaped rack; a guide rail, three guide rails are evenly spaced on the middle upper side of the top of the bottom plate, and the guide rails are located below the second swivel seat; a long rack, a long rack is slidably provided on the inner side of the guide rail, the long rack is meshed with the gear column, and the bottom of the long rack is connected to the second clamping block.

[0010] Optionally, a lifting component is also included, which includes: a third swivel seat, a third swivel seat is provided on one side of the bottom of the support frame; a first winding wheel, a first winding wheel is rotatably provided on the third swivel seat; a handle, a handle is provided on one side of the first winding wheel; a pull rope, a pull rope is connected to the first winding wheel; a second winding wheel, a second winding wheel is rotatably provided on the other side of the sliding rod, and the pull rope is wound around the second winding wheel; a fourth guide rod, a fourth guide rod is provided in the middle of one side of the sliding rod; a third spring, a third spring is connected between the other end of the pull rope and the connecting block, and the third spring is located on the inner side of the fourth guide rod; a fifth guide rod, a fifth guide rod is symmetrically and slidably provided on the inner side of the sliding rod, and the bottom of the fifth guide rod is connected to the connecting block; a fourth spring, a fourth spring is provided between the fifth guide rod and the sliding rod.

[0011] Optionally, a clamping assembly is also included, and a clamping assembly is provided on one side of the bottom of the support frame.

[0012] Optionally, a clamping assembly is also included, which includes: a second guide block, a second guide block is provided on one side of the bottom of the support frame; a third clamping block, a third clamping block is slidably provided on the inner side of the lower part of the second guide block, a through hole is opened on the third clamping block, and the third clamping block cooperates with the first winding wheel; a fifth spring, a fifth spring is provided between the third clamping block and the second guide block, and the fifth spring is sleeved on the third clamping block; a sixth guide rod, a sixth guide rod is provided on one side of the bottom of the support frame, and the sixth guide rod is located on one side of the second guide block; a special-shaped block, a special-shaped block is slidably provided on the lower side of the sixth guide rod, and the special-shaped block cooperates with the through hole on the third clamping block; a sixth spring, a sixth spring is provided between the special-shaped block and the sixth guide rod.

[0013] The beneficial effects of the present invention are: 1. According to the direction of water flow, people rotate the connecting disk to drive the detector and the first card block to rotate, so that the first card block rotates to align with the groove on the connecting block. Under the action of the first spring, the connecting disk, the detector and the first card block are driven to move upward, thereby achieving the purpose of adjusting the direction of the detector.

[0014] 2. The present invention drives the third guide rod, the long rack and the second block to move downward through the outward rotation of the gear column. The second spring is stretched, so that the second block moves downward and gets stuck in the ground. In this way, the device is stabilized and can stably perform water flow detection.

[0015] 3. By rotating the handle, the first winding wheel is driven to rotate, thereby pulling the pull rope, and the pull rope drives the third spring, the connecting block, the connecting disk and the detector to move upward. In this way, the height of the detector can be adjusted according to the depth of the river. In this way, it has a lifting effect, thereby improving people's work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the support mechanism of the present invention.

[0019] Figure 4 It is a partial structural schematic diagram of the support mechanism of the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the telescopic mechanism of the present invention.

[0021] Figure 6 It is a partial structural schematic diagram of the telescopic mechanism of the present invention.

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the steering mechanism of the present invention.

[0023] Figure 8 It is a schematic cross-sectional structural diagram of the steering mechanism of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing assembly of the present invention.

[0025] Fig.10 It is a partial structural schematic diagram of the fixing assembly of the present invention.

[0026] Fig.11 It is a schematic diagram of the three-dimensional structure of the lifting assembly of the present invention.

[0027] Fig.12 It is a partial structural schematic diagram of the lifting assembly of the present invention.

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure of the clamping assembly of the present invention.

[0029] Fig.14 It is a partial structural schematic diagram of the clamping assembly of the present invention.

[0030] The meaning of the reference numerals in the figure: 1_base plate, 2_support column, 3_display, 4_detector, 5_support mechanism, 51_limiting block, 52_support frame, 53_fixing ring, 54_first swivel seat, 55_support rod, 56_torsion spring, 6_telescopic mechanism, 61_cylinder, 62_guide plate, 63_slide rod, 64_first guide rod, 7_steering mechanism, 71_connecting block, 72_second guide rod, 73_connecting plate, 74_first spring, 75_first clamping block, 8_fixing assembly, 81_first guide block, 82_third guide rod, 83_ Second clamping block, 84_second spring, 85_arc-shaped rack, 86_second swivel seat, 87_gear column, 88_guide rail, 89_long rack, 9_lifting assembly, 91_third swivel seat, 92_first winding wheel, 93_handle, 94_pull rope, 95_second winding wheel, 96_fourth guide rod, 97_third spring, 98_fifth guide rod, 99_fourth spring, 10_clamping assembly, 101_second guide block, 102_third clamping block, 103_fifth spring, 104_sixth guide rod, 105_special-shaped block, 106_sixth spring. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that the directional terms such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the present invention are only based on the accompanying drawings of the present invention, and are not specific limitations of the present invention.

[0032] Example 1

[0033] A portable water flow rate detection device for water conservancy projects, such as Figure 1-Figure 8 As shown, it includes a base plate 1, a support column 2, a display 3, a detector 4, a support mechanism 5, a telescopic mechanism 6 and a steering mechanism 7. A support column 2 is provided in the middle of the top of the base plate 1, a display 3 is provided on the upper right side of the support column 2, a support mechanism 5 is provided in the middle of the support column 2, a telescopic mechanism 6 is provided on the upper left side of the support mechanism 5, a steering mechanism 7 is provided on the lower side of the telescopic mechanism 6, and a detector 4 is provided on the lower side of the steering mechanism 7.

[0034] The supporting mechanism 5 includes a limit block 51, a supporting frame 52, a fixing ring 53, a first rotating seat 54, a supporting rod 55 and a torsion spring 56. A limit block 51 is provided on the upper side of the supporting column 2, a supporting frame 52 is provided between the upper left side of the supporting column 2 and the limit block 51, a fixing ring 53 is slidably provided in the middle of the supporting column 2, three first rotating seats 54 are evenly spaced outside the fixing ring 53, support rods 55 are rotatably provided on the first rotating seats 54, torsion springs 56 are symmetrically provided between the support rod 55 and the first rotating seat 54, and the torsion springs 56 are all sleeved on the first rotating seat 54.

[0035] The telescopic mechanism 6 includes a cylinder 61, a guide plate 62, a slide rod 63 and a first guide rod 64. The cylinder 61 is provided on the inner side of the support frame 52, and the guide plate 62 is provided on the top of the support frame 52. The first guide rod 64 is symmetrically provided on the inner side of the guide plate 62. A slide rod 63 is slidably provided between the left sides of the first guide rod 64, and the slide rod 63 is connected to the piston rod of the cylinder 61.

[0036] The steering mechanism 7 includes a connecting block 71, a second guide rod 72, a connecting disk 73, a first spring 74 and a first clamping block 75. A connecting block 71 is slidably provided on the lower left side of the slide rod 63. Four grooves are provided on the connecting block 71. A second guide rod 72 is rotatably provided between the connecting block 71 and the slide rod 63. A connecting disk 73 is provided at the bottom of the second guide rod 72. The connecting disk 73 is connected to the detector 4. A first spring 74 is provided between the connecting disk 73 and the connecting block 71. The first spring 74 is sleeved on the second guide rod 72. A first clamping block 75 is provided on the top of the connecting disk 73. The first clamping block 75 cooperates with the groove on the connecting block 71.

[0037] When it is necessary to detect the speed of the water flow, the fixing ring 53 is manually moved downward, driving the support rod 55 to move downward, so that the support rod 55 contacts the bottom plate 1, and then the support rod 55 is manually rotated outward to open it, and the torsion spring 56 is deformed, so that the support rod 55 is supported on the bottom plate 1, and then people manually move the connecting plate 73 downward, driving the detector 4 and the first clamping block 75 to move downward, and the first spring 74 is stretched. According to the direction of the water flow, people then rotate the connecting plate 73 again, driving the detector 4 and the first clamping block 75 to rotate, so that the first clamping block 75 rotates to align with the groove on the connecting block 71, and then release the connecting plate 73. Under the action of the first spring 74, the connecting plate 73, the detector 4 and the first clamping block 75 are driven to move upward, so that the first clamping block 75 is stuck in the groove of the connecting block 71. At this time, people can use the present invention The device is moved to the shore so that the detector 4 moves into the water, and then the cylinder 61 is started. Under the action of the piston rod of the cylinder 61, the slide bar 63, the connecting block 71, the connecting plate 73 and the detector 4 move to the left, so that the detector 4 is closer to the center of the water flow. The detector 4 detects the speed of the water flow. At this time, people can observe the speed of the water flow through the display 3. When the water flow detection is completed, under the action of the piston rod of the cylinder 61, the slide bar 63, the connecting block 71, the connecting plate 73 and the detector 4 move to the right and reset. When it is not necessary to detect the water flow, people manually close the cylinder 61, and then people move the fixing ring 53 upward, driving the support rod 55 to move upward and separate from the bottom plate 1. At this time, under the action of the torsion spring 56, the support rod 55 is driven to rotate inward and retract. In this way, people can carry the device to other locations.

[0038] Example 2

[0039] On the basis of Example 1, Figure 9-14As shown, it also includes a fixing assembly 8, which includes a first guide block 81, a third guide rod 82, a second clamping block 83, a second spring 84, an arc-shaped rack 85, a second swivel seat 86, a gear column 87, a guide rail 88 and a long rack 89. Three first guide blocks 81 are evenly spaced outside the lower part of the support column 2, and the third guide rod 82 is slidably provided inside the first guide block 81. The bottom of the third guide rod 82 is provided with a second clamping block 83, and the second clamping block 83 is slidably connected to the bottom plate 1. A second spring 84 is provided between the second clamping block 83 and the first guide block 81. The second spring 84 They are all sleeved on the third guide rod 82, and an arc-shaped rack 85 is provided in the middle part of the outer side of the support rod 55, and the arc-shaped rack 85 is slidably matched with the support column 2. Three second rotating seats 86 are evenly spaced on the middle upper side of the top of the base plate 1, and gear columns 87 are rotatably provided on the second rotating seats 86, and the gear columns 87 are meshed with the arc-shaped rack 85. Three guide rails 88 are evenly spaced on the middle upper side of the top of the base plate 1, and the guide rails 88 are located below the second rotating seats 86. Long racks 89 are slidably provided on the inner side of the guide rails 88, and the long racks 89 are meshed with the gear columns 87. The bottom of the long racks 89 is connected to the second clamping block 83.

[0040] When the support rod 55 rotates outward, the arc-shaped rack 85 is driven to move outward, and then the gear column 87 is driven to rotate outward. The outward rotation of the gear column 87 drives the third guide rod 82, the long rack 89 and the second block 83 to move downward, and the second spring 84 is stretched, so that the second block 83 moves downward and gets stuck in the ground. In this way, the device is stabilized. When the support rod 55 rotates inward to reset, the arc-shaped rack 85 is driven to move inward into the support column 2, and then the gear column 87 is driven to rotate inward. At this time, the second spring 84 drives the third guide rod 82, the long rack 89 and the second block 83 to move upward, so that the second block 83 will not get stuck in the ground. In this way, people can carry and move the device.

[0041] The lifting assembly 9 also includes a third rotating seat 91, a first winding wheel 92, a handle 93, a pull rope 94, a second winding wheel 95, a fourth guide rod 96, a third spring 97, a fifth guide rod 98 and a fourth spring 99. A third rotating seat 91 is provided on the right side of the bottom of the support frame 52, and the first winding wheel 92 is rotatably provided on the third rotating seat 91. A handle 93 is provided on the rear side of the first winding wheel 92. A pull rope 94 is connected to the first winding wheel 92. A second winding wheel 95 is rotatably provided on the upper right side of the slide bar 63. The pull rope 94 is wound around the second winding wheel 95. A fourth guide rod 96 is provided in the middle of the right side of the slide bar 63. A third spring 97 is connected between the other end of the pull rope 94 and the connecting block 71. The third spring 97 is located on the inner side of the fourth guide rod 96. A fifth guide rod 98 is symmetrically slidably provided on the inner side of the slide bar 63. The bottom of the fifth guide rod 98 is connected to the connecting block 71, and a fourth spring 99 is provided between the fifth guide rod and the slide bar 63.

[0042] In the initial state, the pull rope 94 is wound around the first winding wheel 92, and the third spring 97 is in a stretched state. When the slide bar 63 moves to the left, the pull rope 94 is pulled to rotate the first winding wheel 92, the handle 93 and the second winding wheel 95. At this time, the third spring 97 is reset to drive the connecting block 71, the fifth guide rod 98, the connecting disk 73 and the detector 4 to move downward. The fourth spring 99 is stretched to make the detector 4 fall into the water. According to the inconsistency of the river depth, people manually rotate the handle 93 to drive the first winding wheel 92 to rotate, thereby pulling the pull rope 94. Under the action of the pull rope 94, the third spring 97, the connecting block 71, the connecting disk 73 and the detector 4 are driven to move upward. In this way, the height of the detector 4 can be adjusted according to the depth of the river, which can be more precise. After comprehensive water flow detection and adjusting the height of the detector 4, the detector 4 detects the water flow. When the slide bar 63 moves to the right, it drives the connecting block 71, the connecting disk 73 and the detector 4 to move to the right. At this time, the slide bar 63 will not pull the pull rope 94. Then people continue to rotate the handle 93 manually to drive the first winding wheel 92 to rotate, so that the pull rope 94 is wound around the first winding wheel 92. At this time, under the action of the fourth spring 99, the connecting block 71, the connecting disk 73 and the detector 4 are driven to move upward and reset, so that the connecting block 71 is fitted with the slide bar 63. Under the action of the slide bar 63, the connecting block 71 will not continue to move upward. People continue to rotate the handle 93, so that the first winding wheel 92 pulls the pull rope 94, and the pull rope 94 stretches the third spring 97.

[0043] It also includes a clamping assembly 10, which includes a second guide block 101, a third clamping block 102, a fifth spring 103, a sixth guide rod 104, a special-shaped block 105 and a sixth spring 106. A second guide block 101 is provided on the right front side of the bottom of the support frame 52, and a third clamping block 102 is slidably provided on the inner side of the lower part of the second guide block 101. A through hole is opened on the third clamping block 102, and the third clamping block 102 cooperates with the first winding wheel 92. A fifth spring 103 is provided between the third clamping block 102 and the second guide block 101, and the fifth spring 103 is sleeved on the third clamping block 102. A sixth guide rod 104 is provided on the right front side of the bottom of the support frame 52, and the sixth guide rod 104 is located on the front side of the second guide block 101. A special-shaped block 105 is slidably provided on the lower side of the sixth guide rod 104. The special-shaped block 105 cooperates with the through hole on the third clamping block 102, and a sixth spring 106 is provided between the special-shaped block 105 and the sixth guide rod 104.

[0044] In the initial state, the third block 102 is stuck on the first winding wheel 92, and the fifth spring 103 is in a compressed state. When it is necessary to detect the water flow of the river, people manually move the special-shaped block 105 upward, and the sixth spring 106 is compressed, so that the special-shaped block 105 is separated from the through hole of the third block 102. At this time, the fifth spring 103 is reset to drive the third block 102 to move forward, so that the third block 102 will not get stuck on the first winding wheel 92. In this way, people can rotate the first winding wheel 92. When the detector 4 is in When detecting the water flow, people manually move the third clamping block 102 backwards so that the third clamping block 102 is stuck on the first winding wheel 92, the fifth spring 103 is compressed, and the third clamping block 102 moves backwards, so that the special-shaped block 105 is aligned with the through hole on the third clamping block 102, and then people release the special-shaped block 105, and under the action of the sixth spring 106, the special-shaped block 105 is driven to move downward and be stuck on the through hole of the third clamping block 102. In this way, the effect of clamping the third clamping block 102 is achieved, effectively improving the working efficiency of water flow detection.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A portable water flow rate detection device for water conservancy projects, characterized in that: Included are: A bottom plate (1) and a support column (2), wherein the support column (2) is provided in the middle of the top of the bottom plate (1); A display (3), wherein a display (3) is provided on one side of the upper portion of the support column (2); A supporting mechanism (5), wherein a supporting mechanism (5) is provided in the middle of the supporting column (2); A telescopic mechanism (6), wherein the other side of the upper portion of the support mechanism (5) is provided with a telescopic mechanism (6); A steering mechanism (7), wherein a steering mechanism (7) is provided on the lower side of the telescopic mechanism (6); A detector (4), wherein the detector (4) is provided on the lower side of the steering mechanism (7); The supporting mechanism (5) comprises: A limit block (51), wherein a limit block (51) is provided on the upper side of the support column (2); A support frame (52), wherein a support frame (52) is provided between the other side of the upper portion of the support column (2) and the limit block (51); A fixing ring (53), a fixing ring (53) is slidably provided in the middle of the support column (2); A first rotating seat (54), three first rotating seats (54) are evenly spaced outside the fixing ring (53); A support rod (55), on which the first rotating seat (54) is rotatably provided; Torsion springs (56), torsion springs (56) are symmetrically arranged between the support rod (55) and the first rotating seat (54), and the torsion springs (56) are sleeved on the first rotating seat (54); The telescopic mechanism (6) comprises: A cylinder (61), wherein the inner side of the support frame (52) is provided with a cylinder (61); A guide plate (62), wherein the top of the support frame (52) is provided with a guide plate (62); A first guide rod (64), the first guide rod (64) being symmetrically arranged on the inner side of the guide plate (62); A slide rod (63) is slidably provided between the slide rod (63) and one side of the first guide rod (64), and the slide rod (63) is connected to the piston rod of the cylinder (61); The steering mechanism (7) comprises: A connecting block (71), a connecting block (71) is slidably provided on one side of the slide rod (63), and four grooves are formed on the connecting block (71); A second guide rod (72), a second guide rod (72) is rotatably provided between the connecting block (71) and the sliding rod (63); A connecting plate (73), wherein a connecting plate (73) is provided at the bottom of the second guide rod (72), and the connecting plate (73) is connected to the detector (4); A first spring (74), wherein a first spring (74) is provided between the connecting plate (73) and the connecting block (71), and the first spring (74) is sleeved on the second guide rod (72); A first clamping block (75), wherein the top of the connecting plate (73) is provided with a first clamping block (75), and the first clamping block (75) cooperates with a groove on the connecting block (71); It also includes a fixing component (8), which includes: A first guide block (81), three first guide blocks (81) are evenly spaced apart on the outer side of the lower portion of the support column (2); A third guide rod (82), a third guide rod (82) is slidably provided inside the first guide block (81); A second clamping block (83) is provided at the bottom of the third guide rod (82), and the second clamping block (83) is slidably connected to the bottom plate (1); A second spring (84), wherein a second spring (84) is provided between the second clamping block (83) and the first guide block (81), and the second spring (84) is sleeved on the third guide rod (82); An arc-shaped rack (85), each of which is provided at the middle of the outer side of the support rod (55), and each of which is slidably matched with the support column (2); A second rotating seat (86), three second rotating seats (86) are evenly spaced apart on the middle upper side of the top of the bottom plate (1); A gear column (87) is rotatably provided on the second rotating seat (86), and the gear column (87) is meshed with the arc-shaped rack (85); Guide rails (88), three guide rails (88) are evenly spaced apart on the middle upper side of the top of the bottom plate (1), and the guide rails (88) are all located below the second rotating seat (86); The long rack (89) and the inner side of the guide rail (88) are both slidably provided with the long rack (89), the long rack (89) is meshed with the gear column (87), and the bottom of the long rack (89) is connected to the second clamping block (83).

2. A portable water flow rate detection device for water conservancy projects according to claim 1, characterized in that: It also includes a lifting component (9), which includes: A third rotating seat (91), a third rotating seat (91) is provided on one side of the bottom of the supporting frame (52); A first winding wheel (92), on which the third rotating seat (91) is rotatably provided; A handle (93), wherein a handle (93) is provided on one side of the first winding wheel (92); A pull rope (94), the first winding wheel (92) is connected to the pull rope (94); A second winding wheel (95), a second winding wheel (95) is rotatably provided on the other side of the slide bar (63), and a pull rope (94) is wound around the second winding wheel (95); A fourth guide rod (96), a fourth guide rod (96) is provided in the middle of one side of the slide rod (63); A third spring (97), wherein the other end of the pull rope (94) and the connecting block (71) are connected with the third spring (97), and the third spring (97) is located inside the fourth guide rod (96); A fifth guide rod (98), the fifth guide rod (98) is symmetrically and slidably provided inside the slide rod (63), and the bottom of the fifth guide rod (98) is connected to the connecting block (71); A fourth spring (99) is provided between the fifth guide rod and the slide rod (63).

3. A portable water flow rate detection device for water conservancy projects according to claim 2, characterized in that: It also includes a clamping assembly (10), and a clamping assembly (10) is provided on one side of the bottom of the support frame (52).

4. A portable water flow rate detection device for water conservancy projects according to claim 3, characterized in that: The clamping assembly (10) comprises: A second guide block (101), a second guide block (101) is provided on one side of the bottom of the support frame (52); A third clamping block (102), a third clamping block (102) is slidably provided on the inner side of the lower part of the second guide block (101), a through hole is opened on the third clamping block (102), and the third clamping block (102) cooperates with the first winding wheel (92); A fifth spring (103), wherein a fifth spring (103) is provided between the third clamping block (102) and the second guide block (101), and the fifth spring (103) is sleeved on the third clamping block (102); A sixth guide rod (104), a sixth guide rod (104) is provided on one side of the bottom of the support frame (52), and the sixth guide rod (104) is located on one side of the second guide block (101); A special-shaped block (105) is slidably provided on the lower side of the sixth guide rod (104), and the special-shaped block (105) cooperates with a through hole on the third clamping block (102); A sixth spring (106) is provided between the special-shaped block (105) and the sixth guide rod (104).

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