Special hydraulic pressure test device for well lid

Abstract

The utility model discloses a hydraulic pressure testing device special for a well lid, and belongs to the field of well lid pressure testing devices. The special hydraulic pressure test device for the well lid comprises a detection plate, a balancing weight, a control box, a connecting frame, a display screen, a mounting plate and a gravity detection plate, wherein the balancing weight, the control box and the connecting frame are fixedly arranged on the detection plate; the display screen is arranged on the control box; the mounting plate is fixedly mounted at the top of the connecting frame; the hydraulic pressure test device comprises a mounting plate, a control box arranged on the mounting plate, a hydraulic mechanism arranged on the mounting plate, an electromagnetic chuck arranged on one side, far away from the control box, of the mounting plate and used for adsorbing the well lid, and a traction mechanism arranged at the bottom of the mounting plate and used for pulling the electromagnetic chuck. And reasonable lifting is achieved through the supporting plate, and the situation caused by unstable adsorption of the electromagnetic chuck is avoided. And the manhole cover is damaged.

Description

Technical Field

[0001] The utility model relates to the field of manhole cover pressure testing devices, in particular to a special hydraulic pressure testing device for manhole covers. Background Art

[0002] Before the manhole cover is installed and used, in order to avoid deformation after installation and causing safety hazards, the manhole cover needs to be tested for load-bearing capacity after the cover body is completed. The manhole cover is pressure-tested using hydraulic equipment to observe whether the manhole cover is deformed.

[0003] The Chinese utility model patent with publication number CN215727348U discloses a hydraulic pressure testing device for manhole covers. The device uses an electromagnetic suction cup to absorb the manhole cover by setting a traction structure and cooperates with a traction rope to pull the manhole cover to achieve traction and placement, avoiding the inconvenience of manually moving the manhole cover for inspection during the inspection process. However, since the existing electromagnetic suction cup requires a stable power supply during use, when the power supply magnetic field becomes unstable, the suction force of the electromagnetic suction cup may become unstable, which in turn leads to a reduction in the adsorption force of the manhole cover, causing the manhole cover to fall due to unstable adsorption, causing damage to the manhole cover.

[0004] Therefore, the utility model provides a special hydraulic pressure testing device for manhole covers to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] The utility model provides a hydraulic pressure testing device for manhole covers, which aims to solve the problem proposed in the background technology that the existing manhole covers use an electromagnetic suction cup to pull and place the manhole covers when monitoring the pressure. However, since the existing electromagnetic suction cup requires a stable power supply during use, when the power supply magnetic field becomes unstable, the suction force of the electromagnetic suction cup may become unstable, which in turn leads to a reduction in the adsorption force on the manhole cover, causing the manhole cover to fall due to unstable adsorption, resulting in damage to the manhole cover.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a hydraulic pressure testing device specifically for manhole covers, comprising a detection plate, a counterweight fixedly mounted on the detection plate, a control box and a connecting frame, a display screen arranged on the control box, a mounting plate fixedly mounted on the top of the connecting frame, a gravity detection plate fixedly mounted on the top of the detection plate and located at the bottom of the connecting frame, a hydraulic mechanism arranged on the mounting plate, an electromagnetic suction cup arranged on the side of the mounting plate away from the control box for adsorbing the manhole cover, and a traction mechanism arranged at the bottom of the mounting plate for pulling the electromagnetic suction cup; when in use, the manhole cover is sucked by the electromagnetic suction cup using the traction mechanism.

[0009] In order to avoid unstable adsorption of the electromagnetic suction cup, a lifting mechanism can be used to further lift the manhole cover; the test device also includes a lifting mechanism arranged on the electromagnetic suction cup, and the lifting mechanism includes an adjustment component arranged on the electromagnetic suction cup, a support plate located at the bottom of the electromagnetic suction cup for lifting the manhole cover, a rotating shaft fixedly arranged on the support plate, an adjustment motor located at the output end of the rotating shaft and fixedly connected to the support plate, and a limiting component arranged on the support plate for clamping the manhole cover; first, the adjustment plate is adjusted to a suitable position according to the diameter of the manhole cover by using the adjustment component, and at this time, the rotating shaft and the support plate are driven to rotate by turning on the adjustment motor, so that the support plate is rotated to the bottom of the adjustment plate, which facilitates the later lifting of the manhole cover by the support plate, and at the same time cooperates with the limiting component to limit the manhole cover to prevent the manhole cover from falling.

[0010] Preferably, in order to achieve rapid traction, the traction mechanism includes an electric push rod fixedly arranged at the bottom of the mounting plate and located on one side of the hydraulic mechanism, a slide groove provided at the bottom of the mounting plate, a slider slidingly arranged on the slide groove, a winding drum fixedly installed on the electric push rod away from the control box at one end and fixedly connected to the bottom of the slider, a winding roller arranged inside the winding drum, a control motor arranged on one side of the winding drum and connected to the output end of the winding roller, and a traction rope wound on the winding roller and passing through the opening of the winding drum, wherein the traction rope is away from the end of the winding drum. The end is fixedly connected to the top of the electromagnetic suction cup; after being lifted by the lifting mechanism, the traction mechanism can be used to pull the electromagnetic suction cup, the lifting mechanism at the bottom and the manhole cover, and the winding roller inside the winding drum is driven to rotate by turning on the control motor, thereby driving the traction rope fixedly connected to the electromagnetic suction cup to reel in, thereby driving the bottom manhole cover to move upward, so that the manhole cover moves to the position above the detection plate, and at the same time, the electric push rod is turned on to drive the winding drum along the top slider and the bottom slide groove of the mounting plate, so that the manhole cover slides to the center position on the gravity detection plate, so that it can be pressure tested by the hydraulic mechanism later.

[0011] Preferably, in order to adapt to the lifting of manhole covers of different diameters, the adjustment component includes a slot provided on the electromagnetic suction cup and an adjustment plate that passes through the slot transversely and is slidably connected to the slot, and both ends of the adjustment plate are rotatably connected to the rotating shaft; when lifting by the lifting mechanism, in order to adapt to the lifting of manhole covers of different diameters, the position of the adjustment plate can be adjusted by the adjustment component, thereby achieving the effect of adjusting the distance between the two supporting plates, and the adjustment plate is slid along the slot provided on the electromagnetic suction cup, and after moving to the appropriate position, the adjustment space on the adjustment plate is made to coincide with the fixed hole on the electromagnetic suction cup.

[0012] Preferably, in order to achieve the fixation of the adjustment plate, the adjustment assembly also includes adjustment holes arranged horizontally on the adjustment plate, fixing holes provided on the electromagnetic suction cup and adapted to the adjustment holes, and an insertion rod inserted into the fixing hole; the insertion rod is slidably inserted into the fixing hole to complete the adjustment and fixation of the position of the adjustment plate.

[0013] Preferably, in order to further strengthen the lifting and fixing of the manhole cover, the manhole cover can be clamped by a limiting assembly; the limiting assembly includes a fixed spring and a telescopic rod fixedly arranged on the top of the support plate, a splint fixedly installed on the top of the fixed spring and the telescopic rod, and a rubber pad arranged on the top of the splint and in contact with the bottom of the manhole cover; after the manhole cover is lifted, it is clamped between the splint and the electromagnetic suction cup, and at this time the fixed spring on the splint drives the telescopic rod to extend and retract, driving the top rubber pad to contact the manhole cover, thereby achieving a clamping effect, and also facilitating the lifting of manhole covers of different thicknesses.

[0014] Preferably, in order to achieve rapid hydraulic pressure, the hydraulic mechanism includes a hydraulic rod passing through the mounting plate and a pressure plate fixedly arranged at the bottom of the hydraulic rod; by starting the hydraulic rod, the bottom pressure plate is driven to reduce the squeezing of the manhole cover on the detection plate, so that the pressure value is transmitted to the controller in the control box through the gravity detection plate, and then transmitted to the display screen by the controller to complete the entire pressure test.

[0015] (3) Beneficial effects

[0016] The special hydraulic pressure testing device for manhole covers is equipped with a lifting mechanism and uses a supporting plate to achieve reasonable lifting, thereby avoiding the problem of manhole cover damage caused by unstable adsorption of the electromagnetic suction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a hydraulic pressure testing device specifically for manhole covers;

[0018] Figure 2 This is a schematic diagram of the structure of part of a hydraulic pressure testing device for manhole covers;

[0019] Figure 3 This is a schematic diagram of the hydraulic mechanism of a hydraulic pressure testing device specifically for manhole covers;

[0020] Figure 4 This is a schematic diagram of the lifting mechanism of a hydraulic pressure testing device specifically for manhole covers.

[0021] In the picture:

[0022] 1. Detection board; 11. Counterweight; 12. Control box; 121. Display screen; 13. Mounting plate; 14. Gravity detection board;

[0023] 2. Hydraulic mechanism; 21. Hydraulic rod; 22. Pressure plate;

[0024] 3. Traction mechanism;

[0025] 31. Electromagnetic chuck; 311. Fixing hole;

[0026] 32. Electric push rod; 33. Slide; 34. Winding drum; 35. Slider; 36. Control motor; 37. Traction rope;

[0027] 4. Supporting organization;

[0028] 41. Adjustment assembly; 411. Notch; 412. Adjustment plate; 413. Adjustment hole; 414. Insertion rod;

[0029] 42. Support plate; 43. Rotating shaft; 44. Adjusting motor;

[0030] 45. Limiting assembly; 451. Fixing spring; 452. Clamp; 453. Rubber pad; 454. Telescopic rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0032] The utility model provides a special hydraulic pressure test device for manhole covers, such as Figure 1-4As shown, the manhole cover-specific hydraulic pressure testing device includes a detection plate 1, a counterweight 11 fixedly set on the detection plate 1, a control box 12 and a connecting frame, a display screen 121 set on the control box 12, a mounting plate 13 fixedly mounted on the top of the connecting frame, a gravity detection plate 14 fixedly set on the top of the detection plate 1 and located at the bottom of the connecting frame, a hydraulic mechanism 2 set on the mounting plate 13, an electromagnetic suction cup 31 set on the side of the mounting plate 13 away from the control box 12 for adsorbing the manhole cover, and a traction mechanism 3 set at the bottom of the mounting plate 13 for pulling the electromagnetic suction cup 31. The test device also includes a lifting mechanism 4 set on the electromagnetic suction cup 31, the lifting mechanism 4 includes an adjustment component 41 set on the electromagnetic suction cup 31, a support plate 42 located at the bottom of the electromagnetic suction cup 31 for lifting the manhole cover, a rotating shaft 43 fixedly set on the support plate 42, an adjustment motor 44 located at the output end of the rotating shaft 43 and fixedly connected to the support plate 42, and a limit component 45 set on the support plate 42 for clamping the manhole cover.

[0033] During use, the manhole cover is sucked by the electromagnetic suction cup 31 through the traction mechanism 3. At this time, in order to avoid unstable adsorption of the electromagnetic suction cup 31, the lifting mechanism 4 can be used to further lift the manhole cover. First, the adjustment component 41 is used to adjust the adjustment plate 412 to a suitable position according to the diameter of the manhole cover. At this time, the adjustment motor 44 is turned on to drive the rotating shaft 43 and the support plate 42 to rotate, so that the support plate 42 is rotated to the bottom of the adjustment plate 412, which makes it easier to lift the manhole cover through the support plate 42 in the later stage, and at the same time cooperate with the limit component 45 to limit the manhole cover to prevent the manhole cover from falling.

[0034] Specifically, the traction mechanism 3 includes an electric push rod 32 fixedly arranged at the bottom of the mounting plate 13 and located on one side of the hydraulic mechanism 2, a slide groove 33 opened at the bottom of the mounting plate 13, a slider 35 slidably arranged on the slide groove 33, a winding drum 34 fixedly installed at the end of the electric push rod 32 away from the control box 12 and fixedly connected to the bottom of the slider 35, a winding roller arranged inside the winding drum 34, a control motor 36 arranged on one side of the winding drum 34 and connected to the output end of the winding roller, and a traction rope 37 wound around the winding roller and passing through the opening of the winding drum 34, and the end of the traction rope 37 away from the winding drum 34 is fixedly connected to the top of the electromagnetic suction cup 31; After being lifted by the lifting mechanism 4, the traction mechanism 3 can be used to pull the electromagnetic suction cup 31, the lifting mechanism 4 at the bottom and the manhole cover. By turning on the control motor 36, the winding roller inside the winding drum 34 is driven to rotate, and then the traction rope 37 fixedly connected to the electromagnetic suction cup 31 is driven to reel in, thereby driving the bottom manhole cover to move upward, so that the manhole cover moves to the position above the detection plate 1. At the same time, the electric push rod 32 is turned on to drive the winding drum 34 along the top slider 35 and the bottom slide groove 33 of the mounting plate 13, so that the manhole cover slides to the center position on the gravity detection plate 14, so that it can be pressure tested by the hydraulic mechanism 2 later.

[0035] Furthermore, the adjustment component 41 includes a notch 411 provided on the electromagnetic suction cup 31 and an adjustment plate 412 that passes through the notch 411 transversely and is slidably connected to the notch 411. Both ends of the adjustment plate 412 are rotatably connected to the rotating shaft 43. The adjustment component 41 also includes adjustment holes 413 arranged transversely on the adjustment plate 412, fixing holes 311 provided on the electromagnetic suction cup 31 and adapted to the adjustment holes 413, and an insertion rod 414 inserted into the fixing hole 311. When the lifting mechanism 4 is used to lift the object, the adjustment plate 412 is rotated to rotate with the rotating shaft 43. In order to adapt to the lifting of manhole covers of different diameters, the position of the adjustment plate 412 can be adjusted through the adjustment component 41, thereby achieving the effect of adjusting the distance between the two supporting plates 42. The adjustment plate 412 is slid along the slot 411 opened on the electromagnetic suction cup 31. After moving to the appropriate position, the adjustment space on the adjustment plate 412 coincides with the fixing hole 311 on the electromagnetic suction cup 31. At this time, the insertion rod 414 is slidably inserted into the fixing hole 311 to complete the adjustment and fixation of the position of the adjustment plate 412.

[0036] Furthermore, the limiting assembly 45 includes a fixed spring 451 and a telescopic rod 454 fixedly arranged on the top of the support plate 42, a splint 452 fixedly installed on the top of the fixed spring 451 and the telescopic rod 454, and a rubber pad 453 arranged on the top of the splint 452 and in contact with the bottom of the manhole cover; in order to further strengthen the support and fixation of the manhole cover, the manhole cover can be clamped by the limiting assembly 45. After the manhole cover is lifted, it is clamped between the splint 452 and the electromagnetic suction cup 31. At this time, the fixed spring 451 on the splint 452 drives the telescopic rod 454 to extend and retract, driving the top rubber pad 453 to contact the manhole cover, thereby achieving a clamping effect, and also facilitating the support of manhole covers of different thicknesses.

[0037] Among them, in order to achieve rapid hydraulic pressure; the hydraulic mechanism 2 includes a hydraulic rod 21 passing through the mounting plate 13 and a pressure plate 22 fixedly arranged at the bottom of the hydraulic rod 21; by starting the hydraulic rod 21, the bottom pressure plate 22 is driven to reduce the squeezing of the manhole cover on the detection plate 1, so that the pressure value is transmitted to the controller in the control box 12 through the gravity detection plate 14, and then transmitted to the display screen 121 by the controller to complete the entire pressure test.

[0038] It should be noted that the gravity detection plate is an existing technology.

[0039] The above description is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent replacement or change made by any technician familiar with the field within the technical scope disclosed by the present invention according to the technical solution and the utility model concept of the present invention should be covered by the protection scope of the present invention.

Claims

1. A hydraulic pressure test device for a manhole cover, comprising a detection plate (1), a counterweight (11) fixedly arranged on the detection plate (1), a control box (12) and a connecting frame, a display screen (121) arranged on the control box (12), a mounting plate (13) fixedly mounted on the top of the connecting frame, a gravity detection plate (14) fixedly arranged on the top of the detection plate (1) and located at the bottom of the connecting frame, a hydraulic mechanism (2) arranged on the mounting plate (13), an electromagnetic suction cup (31) arranged on a side of the mounting plate (13) away from the control box (12) for adsorbing the manhole cover, and a traction mechanism (3) arranged at the bottom of the mounting plate (13) for traction of the electromagnetic suction cup (31); Its characteristics are: The test device further comprises a lifting mechanism (4) arranged on the electromagnetic chuck (31); The lifting mechanism (4) includes an adjusting component (41) arranged on the electromagnetic suction cup (31) for lifting the manhole cover, a supporting plate (42) located at the bottom of the electromagnetic suction cup (31) for lifting the manhole cover, a rotating shaft (43) fixedly arranged on the supporting plate (42), an adjusting motor (44) located at the output end of the rotating shaft (43) and fixedly connected to the supporting plate (42), and a limiting component (45) arranged on the supporting plate (42) for clamping the manhole cover.

2. The hydraulic pressure testing device for manhole covers according to claim 1, characterized in that: The traction mechanism (3) comprises an electric push rod (32) fixedly arranged at the bottom of the mounting plate (13) and located on one side of the hydraulic mechanism (2), a slide groove (33) provided at the bottom of the mounting plate (13), a slider (35) slidably arranged on the slide groove (33), a winding drum (34) fixedly mounted on one end of the electric push rod (32) away from the control box (12) and fixedly connected to the bottom of the slider (35), a winding roller arranged inside the winding drum (34), a control motor (36) arranged on one side of the winding drum (34) and connected to the output end of the winding roller, and a traction rope (37) wound around the winding roller and passing through the opening of the winding drum (34), wherein the end of the traction rope (37) away from the winding drum (34) is fixedly connected to the top of the electromagnetic suction cup (31).

3. The hydraulic pressure testing device for manhole covers according to claim 1, characterized in that: The adjustment component (41) comprises a notch (411) provided on the electromagnetic suction cup (31) and an adjustment plate (412) extending transversely through the notch (411) and slidably connected to the notch (411); both ends of the adjustment plate (412) are rotatably connected to the rotating shaft (43).

4. The special hydraulic pressure testing device for manhole covers according to claim 3, characterized in that: The adjustment assembly (41) further comprises adjustment holes (413) arranged in a transverse arrangement on the adjustment plate (412), a fixing hole (311) provided on the electromagnetic suction cup (31) and adapted to the adjustment hole (413), and an insertion rod (414) inserted into the fixing hole (311).

5. The special hydraulic pressure testing device for manhole covers according to claim 1, characterized in that: The limiting assembly (45) comprises a fixed spring (451) and a telescopic rod (454) fixedly arranged on the top of the supporting plate (42), a clamping plate (452) fixedly mounted on the top of the fixed spring (451) and the telescopic rod (454), and a rubber pad (453) arranged on the top of the clamping plate (452) and in contact with the bottom of the manhole cover.

6. The special hydraulic pressure testing device for manhole covers according to claim 1, characterized in that: The hydraulic mechanism (2) comprises a hydraulic rod (21) passing through the mounting plate (13) and a pressure plate (22) fixedly arranged at the bottom of the hydraulic rod (21).

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