A precast wellbore unloading device

Abstract

The present application relates to the technical fields of prefabricated wellbore unloading technology, and specifically relates to a prefabricated wellbore unloading device, which comprises a moving frame, a moving mechanism arranged above the moving frame, an unloading mechanism, and the unloading mechanism is located at the front side of the moving mechanism. Advantageous effects: the spacing between the two inserts is adjusted by adjusting the structure, so as to adapt to the clamping of wellbores of different diameters, and then the wellbore is inserted into the pressing plate inside the two connecting frames through the unloading assembly, the pressing plate is pressed downward by the gravity of the wellbore itself, and at the same time, the pressing amount of the pressing plate is converted into the displacement amount of the two clamping structures moving close to each other by the action of the driving structure, so that the wellbore is clamped and limited by the clamping structure, and when the gravity of the wellbore itself is greater, the clamping force of the clamping structure on the wellbore is greater, the clamping effect of the wellbore of different weights is improved, the stability of the wellbore of different weights during clamping and fixing is enhanced, and the practicality of the device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated shaft unloading technology, in particular to a prefabricated shaft unloading device. BACKGROUND

[0002] The prefabricated shaft is a shaft component made of reinforced concrete, which has compression resistance and bending resistance, and is mainly used in the construction site of the inspection well of the drainage project. During the transportation of the prefabricated shaft, a corresponding unloading equipment needs to be used to unload the prefabricated shaft to ensure that the prefabricated shaft reaches the use site stably.

[0003] By comparing the patent announcement No. CN219708889U, a safety protection prefabricated shaft unloading device, in this scheme, the device is surrounded and clamped by the clamping piece and the mounting frame, but when the prefabricated shaft is clamped, the clamping piece cannot better adjust the diameter, and when the prefabricated shaft of different diameters is clamped and fixed, it is limited, and it cannot better adapt to the clamping operation of prefabricated shafts of different diameters. At the same time, when the shaft is clamped and fixed, it cannot better adjust the clamping force of the shaft. When the weight of the shaft is greater, the clamping force of the clamping limit of the shaft is greater, which may reduce the clamping effect of the shaft of different weights, reduce the stability of the shaft of different weights when clamped and fixed, reduce the use range of the device, reduce the practicality of the device, and have certain limitations. SUMMARY

[0004] The purpose of the present application is to provide a prefabricated shaft unloading device to solve the above problems.

[0005] The present application realizes the above-mentioned purpose through the following technical solutions:

[0006] A prefabricated shaft unloading device, comprising a moving frame, a moving mechanism is arranged above the moving frame, and an unloading mechanism for unloading the shaft is further arranged.

[0007] The unloading mechanism comprises an unloading assembly for unloading the shaft and a lifting assembly for lifting when unloading the shaft.

[0008] The unloading assembly comprises two symmetrical connecting frames movably arranged above the moving frame, a plug plate is fixed to the front end of the connecting frame, a discharging table is fixed to the front and rear ends of the connecting frame, one side of the two discharging tables near the center of the connecting frame is a slope, a cylinder is arranged above the connecting frame, a supporting plate is fixed to the extension end of the cylinder, the front end of the supporting plate is arc-shaped, a clamping structure for clamping and fixing the shaft loaded in the connecting frame is arranged in the connecting frame, and an adjusting structure for adjusting the distance between the two connecting frames is arranged behind the connecting frame.

[0009] The clamping structure comprises a pressing plate slidingly mounted inside the connecting frame, a fixed plate is arranged above the pressing plate, clamping plates are rotatably mounted at the front and rear ends of the fixed plate, torsion springs are connected between the rotating ends of the clamping plates and the fixed plate, a driving structure is arranged between the pressing plate and the fixed plate, and the driving structure is used to drive the two fixed plates to move towards each other to clamp and fix the wellbore when the two pressing plates are pressed down.

[0010] The driving structure comprises a first oil cylinder fixed at the bottom end of the connecting frame, the pressing plate is sealingly and slidingly arranged inside the first oil cylinder, a compression spring is connected between the bottom end of the pressing plate and the bottom wall of the first oil cylinder, a second oil cylinder is arranged at one side of the first oil cylinder and fixedly connected with the connecting frame, a communication pipeline is connected between the first oil cylinder and the second oil cylinder, a piston plate is sealingly and slidingly arranged inside the second oil cylinder, an extension spring is connected between the bottom end of the piston plate and the bottom wall of the second oil cylinder, a top plate is fixedly arranged at the upper end of the piston plate, the upper end of the top plate is arc-shaped, a push plate is arranged above the top plate, the push plate is slidingly connected with the side wall of the connecting frame, a return spring is connected between the side wall of the connecting frame and the push plate, an arc-shaped plate is fixedly arranged on the push plate, the lower end of the arc-shaped plate is arc-shaped, the arc-shaped plate is slidingly matched with the top plate, and the fixed plate is fixedly connected with the arc-shaped plate.

[0011] Preferably, the moving mechanism comprises two symmetrical moving wheels rotatably arranged at the front end of the moving frame, two symmetrical universal wheels are rotatably mounted at the rear end of the moving frame, connecting rods are fixedly arranged on the side wall of the moving frame and close to the universal wheels, and handrails are fixedly connected between the upper ends of the two connecting rods.

[0012] Preferably, the lifting assembly comprises sliding seats slidingly arranged on the side wall of the connecting rod, a lifting frame is fixedly arranged between the two sliding seats, a hydraulic cylinder is arranged at the bottom end of the moving frame, a connecting column is fixedly connected between the extension end of the hydraulic cylinder and the upper end of the lifting frame, a foot pedal is mounted at the lower end of the hydraulic cylinder, and the cylinder is fixedly arranged at the upper end of the lifting frame.

[0013] Preferably, the adjusting structure comprises a lead screw rotatably mounted at the front end of the lifting frame, the screw threads arranged at the two ends of the lead screw are opposite in direction, connecting sleeves are arranged at the two ends of the lead screw, the connecting sleeves are slidingly connected with the lifting frame, the connecting sleeves are threadedly connected with the lead screw, and the connecting sleeves and the connecting frame are fixedly connected through connecting plates.

[0014] Preferably, the upper end of the plug-in plate is provided with an arc-shaped protrusion.

[0015] Preferably, a limiting seat is slidingly mounted below the blanking table, one side of the limiting seat close to the center of the connecting frame is an inclined surface, and a limiting spring is connected between the limiting seat and the inner wall of the connecting frame.

[0016] Preferably, a plurality of rolling shafts are rotatably mounted on the inclined surface of the limiting seat.

[0017] Preferably, the sliding seat and the connecting rod are slidingly connected through a pulley, and a rotating wheel is fixedly arranged at the end of the lead screw.

[0018] Compared with the prior art, the beneficial effects are as follows:

[0019] The spacing between the two insertion plates and the connecting frame is adjusted by adjusting the structure, so as to adapt to the clamping and placement of wellbores with different diameters. Then, the wellbore insertion is placed on the pressing plate inside the two connecting frames by the unloading assembly. The pressing plate is pressed downward by the gravity of the wellbore itself. At the same time, the pressing amount of the pressing plate is converted into the displacement amount of the two clamping structures moving close to each other by the action of the driving structure. Therefore, the wellbore is clamped and limited by the clamping structure. When the gravity of the wellbore itself is greater, the clamping force of the clamping structure on the wellbore is greater. The clamping effect of the wellbores with different weights is improved. The stability of the wellbores with different weights when clamped and fixed is enhanced. The use range of the device is improved. The practicality of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application. Other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a space perspective view of the prefabricated wellbore unloading device according to the present application;

[0022] Figure 2 is a structural schematic view of the moving mechanism of the prefabricated wellbore unloading device according to the present application;

[0023] Figure 3 is a structural schematic view of the unloading mechanism of the prefabricated wellbore unloading device according to the present application;

[0024] Figure 4 is a structural schematic view of the clamping structure of the prefabricated wellbore unloading device according to the present application;

[0025] Figure 5 is a structural sectional view of the driving structure inside the prefabricated wellbore unloading device according to the present application;

[0026] Figure 6 is Figure 5 is a local enlarged view of A in FIG.

[0027] The reference signs are explained as follows:

[0028] 100. Movable frame; 201. Lead screw; 202. Connecting sleeve; 203. Connecting plate; 204. Connecting frame; 205. Pressure plate; 206. First hydraulic cylinder; 207. Connecting pipe; 208. Second hydraulic cylinder; 209. Top plate; 210. Piston plate; 211. Arc plate; 212. Push plate; 213. Fixed plate; 214. Clamping plate; 215. Limiting seat; 216. Roller; 217. Unloading platform; 218. Insert plate; 219. Cylinder; 220. Support plate; 221. Hydraulic cylinder; 222. Connecting column; 223. Sliding seat; 224. Lifting frame; 225. Foot pedal; 301. Moving wheel; 302. Universal wheel; 303. Connecting rod; 304. Handrail. Detailed Implementation

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] like Figures 1-6 As shown, a prefabricated well casing unloading device includes a movable frame 100, a movable mechanism for moving the device, the movable mechanism being located above the movable frame 100, and an unloading mechanism for unloading the well casing, the unloading mechanism being located in front of the movable mechanism.

[0032] In this embodiment: the moving mechanism includes two symmetrical moving wheels 301 rotatably disposed at the front end of the moving frame 100, two symmetrical universal wheels 302 rotatably mounted at the rear end of the moving frame 100, a connecting rod 303 fixed on the side wall of the moving frame 100 near the universal wheels 302, and a handrail 304 fixedly connected between the upper ends of the two connecting rods 303.

[0033] In this embodiment, the unloading mechanism includes an unloading assembly for unloading the wellbore and a lifting assembly for lifting and lowering the wellbore during unloading.

[0034] The lifting assembly comprises two sliding seats 223 slidingly arranged on the side walls of the connecting rod 303, the sliding seats 223 are slidingly connected with the connecting rod 303 through pulleys, a lifting frame 224 is fixed between the two sliding seats 223, the moving frame 100 is provided with a hydraulic cylinder 221 at the bottom end, a connecting column 222 is fixedly connected between the extension end of the hydraulic cylinder 221 and the upper end of the lifting frame 224, a foot pedal 225 is installed at the lower end of the hydraulic cylinder 221, and the hydraulic cylinder 221 is driven to extend or retract by pressing the foot pedal 225.

[0035] The unloading assembly comprises two symmetrical connecting frames 204 arranged on the front side of the lifting frame 224, the connecting frames 204 are fixedly provided with plug plates 218 at the front ends, the plug plates 218 are provided with arc-shaped protrusions at the upper ends, which are beneficial to the insertion of the wellbore and the sliding of the wellbore in the connecting frames 204, the connecting frames 204 are fixedly provided with discharging tables 217 at the front and rear ends, one side of the discharging tables 217 close to the center of the connecting frames 204 is a slope, the discharging tables 217 are slidingly installed with limit seats 215 below, one side of the limit seats 215 close to the center of the connecting frames 204 is a slope, the limit seats 215 are connected with limit springs between the inner walls of the connecting frames 204, a plurality of rollers 216 are rotatably installed on the slope of the limit seat 215, the lifting frame 224 is fixedly provided with a gas cylinder 219 at the upper end, the gas cylinder 219 is fixedly provided with a supporting plate 220 at the extension end, the front end of the supporting plate 220 is arc-shaped, the connecting frames 204 are provided with clamping structures inside for clamping and fixing the wellbores loaded in the connecting frames 204, and the rear of the connecting frames 204 is provided with an adjusting structure for adjusting the distance between the two connecting frames 204.

[0036] The clamping structure comprises a pressing plate 205 slidingly installed in the connecting frame 204, the pressing plate 205 is provided with a fixed plate 213 above, the fixed plate 213 is rotatably installed with clamping plates 214 at the front and rear ends, the clamping plates 214 are connected with torsion springs between the rotating ends and the fixed plate 213, the pressing plate 205 and the fixed plate 213 are provided with a driving structure, and the driving structure is used to drive the clamping plates 214 to move towards each other to clamp and fix the wellbore when the two pressing plates 205 are pressed.

[0037] The driving structure comprises a first oil cylinder 206 fixed at the bottom end of the connecting frame 204, a pressing plate 205 sealingly sliding in the first oil cylinder 206, a compression spring connected between the bottom end of the pressing plate 205 and the bottom wall of the first oil cylinder 206, a second oil cylinder 208 arranged at one side of the first oil cylinder 206 and fixedly connected with the connecting frame 204, a communication pipeline 207 connected between the first oil cylinder 206 and the second oil cylinder 208, a piston plate 210 sealingly sliding in the second oil cylinder 208, an extension spring connected between the bottom end of the piston plate 210 and the bottom wall of the second oil cylinder 208, a top plate 209 fixed at the upper end of the piston plate 210, the upper end of the top plate 209 being arc-shaped, a push plate 212 arranged above the top plate 209 and slidingly connected with the side wall of the connecting frame 204, a reset spring connected between the side wall of the connecting frame 204 and the push plate 212, an arc-shaped plate 211 fixed on the push plate 212 and having an arc-shaped lower end, the arc-shaped plate 211 slidingly matched with the top plate 209, and a fixed plate 213 fixedly connected with the arc-shaped plate 211.

[0038] The adjusting structure comprises a lead screw 201 rotatably arranged at the front end of the lifting frame 224, the lead screw 201 being provided with opposite screw threads at two ends, the lead screw 201 being provided with a connecting sleeve 202 at each end, the connecting sleeve 202 being slidingly connected with the lifting frame 224, the connecting sleeve 202 being threadedly connected with the lead screw 201, the lead screw 201 being fixedly provided with a rotating wheel, and the connecting sleeve 202 being fixedly connected with the connecting frame 204 through a connecting plate 203, the adjusting structure being used to adjust the distance between the two plug plates 218 and the connecting frame 204, so as to adapt to clamping and placing wellbores of different diameters, the wellbores being inserted on the pressing plates 205 in the two connecting frames 204 through the unloading assembly, the pressing plates 205 being pressed downward by the gravity of the wellbores, the pressing amount of the pressing plates 205 being converted into the displacement amount of the two clamping structures moving close to each other by the action of the driving structure, so that the clamping structures firmly clamp and limit the wellbores, the clamping force of the clamping structures on the wellbores being greater when the gravity of the wellbores is greater, the clamping effect on wellbores of different weights being improved, the stability of wellbores of different weights when clamped and fixed being enhanced, the use range of the device being improved, and the practicality of the device being improved.

[0039] Working principle: first, the handrail 304 is pushed to drive the moving frame 100 to move to the working position, then the rotating wheel is rotated to drive the lead screw 201 to rotate, the two connecting sleeves 202 are moved towards each other to adjust the distance between the two connecting sleeves 202, the distance between the two plug plates 218 is adjusted, wellbores of different diameters are clamped and placed, after the distance is adjusted to a proper distance, the foot pedal 225 is pressed to control the extension and retraction of the hydraulic cylinder 221, the height of the two plug plates 218 is adjusted, and wellbores stacked at different heights are unloaded.

[0040] Then drive the cylinder 219 with the support plate 220 to the front side, and then move two insert plate 218 inserted in the well bottom end of the to be unloaded, make the well cylinder on two insert plate 218, make two insert plate 218 completely inserted in the well bottom end, use the arc convex on the upper end of the insert plate 218, the well cylinder will follow two blanking table 217 and limit seat 215 fall in two connecting frame 204, the rear end of the well cylinder will first rely on the front end of the support plate 220, use the support plate 220 to make the preliminary support of the well cylinder, prevent the well cylinder from falling, then the front end of the well cylinder slowly falls on the upper end of the two pressure plate 205, the front and rear ends of the well cylinder will extrude each other to the front and rear limit seat 215, so that the front and rear limit seat 215 clamps and limits the front and rear ends of the well cylinder, so that the well cylinder falls on the upper end of the pressure plate 205.

[0041] The gravity of the well cylinder itself will press the pressure plate 205 to move downward, and then the downward movement of the pressure plate 205 extrudes the hydraulic oil in the first oil cylinder 206 downward, and the hydraulic oil in the first oil cylinder 206 is pressed into the second oil cylinder 208 through the communication pipeline 207, so as to drive the piston plate 210 in the second oil cylinder 208 to move upward, drive the top plate 209 on the upper end of the piston plate 210 to move upward, the upward movement of the top plate 209 extrudes the arc plate 211 above to move in the direction of the well cylinder, and then the arc plate 211 on both sides drives the fixed plate 213 on both sides to move towards each other, drives the clamp plate 214 on the fixed plate 213 to clamp and fix the well cylinder, so as to convert the pressing amount of the pressure plate 205 into the displacement amount of the two fixed plates 213 moving towards each other, so as to clamp and limit the well cylinder by the clamp plate 214, when the gravity of the well cylinder itself is greater, the clamping force of the clamp plate 214 on the well cylinder is greater, the clamping effect of the well cylinder of different weights is improved, and the stability of the well cylinder of different weights when clamping and fixing is enhanced, so that the clamping force of the well cylinder is increased when transporting the well cylinder of different weights, the stability of the well cylinder transportation is improved, the shaking is prevented, and the practicability of the device is improved.

[0042] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A prefabricated wellbore unloading device, comprising a moving frame (100), a moving mechanism is arranged above the moving frame (100), characterized in that: The unloading mechanism for unloading the wellbore is located in front of the moving mechanism; The unloading mechanism comprises an unloading assembly for unloading the wellbore and a lifting assembly for lifting when unloading the wellbore; The unloading assembly comprises two symmetrical connecting frames (204) movably arranged above the moving frame (100), the front end of the connecting frame (204) is fixed with an insertion plate (218), the front and rear ends of the connecting frame (204) are fixed with unloading tables (217), one side of the two unloading tables (217) close to the center of the connecting frame (204) is a slope, a gas cylinder (219) is arranged above the connecting frame (204), the telescopic end of the gas cylinder (219) is fixed with a supporting plate (220), the front end of the supporting plate (220) is arc-shaped, a clamping structure for clamping and fixing the wellbore loaded in the connecting frame (204) is arranged in the connecting frame (204), and an adjusting structure for adjusting the spacing between the two connecting frames (204) is arranged behind the connecting frame (204); The clamping structure comprises a pressing plate (205) slidingly installed in the connecting frame (204), a fixed plate (213) is arranged above the pressing plate (205), clamping plates (214) are rotatably installed at the front and rear ends of the fixed plate (213), torsional springs are connected between the rotating end of the clamping plate (214) and the fixed plate (213), a driving structure is arranged between the pressing plate (205) and the fixed plate (213), and the driving structure is used for driving the two fixed plates (213) to move the clamping plates (214) towards each other to clamp and fix the wellbore when the two pressing plates (205) are pressed down. The driving structure comprises a first oil cylinder (206) fixed at the bottom end of the connecting frame (204), the pressing plate (205) is sealed and slides in the first oil cylinder (206), a compression spring is connected between the bottom end of the pressing plate (205) and the bottom wall of the first oil cylinder (206), a second oil cylinder (208) is arranged on one side of the first oil cylinder (206), the second oil cylinder (208) is fixedly connected with the connecting frame (204), a communication pipeline (207) is connected between the first oil cylinder (206) and the second oil cylinder (208), a piston plate (210) is sealed and slides in the second oil cylinder (208), an extension spring is connected between the bottom end of the piston plate (210) and the bottom wall of the second oil cylinder (208), a top plate (209) is fixed to the upper end of the piston plate (210), the upper end of the top plate (209) is arc-shaped, a push plate (212) is arranged above the top plate (209), the push plate (212) is slidably connected with the side wall of the connecting frame (204), a reset spring is connected between the side wall of the connecting frame (204) and the push plate (212), an arc-shaped plate (211) is fixed to the push plate (212), the lower end of the arc-shaped plate (211) is arc-shaped, the arc-shaped plate (211) is slidably connected with the top plate (209), and the fixing plate (213) is fixedly connected with the arc-shaped plate (211).

2. A precast shaft unloading device according to claim 1, wherein: The moving mechanism comprises two symmetrical moving wheels (301) rotatably arranged at the front end of the moving frame (100), two symmetrical universal wheels (302) rotatably arranged at the rear end of the moving frame (100), and connecting rods (303) fixed to the side walls of the moving frame (100) and close to the universal wheels (302), wherein the upper ends of the two connecting rods (303) are fixedly connected with a handrail (304).

3. A precast shaft unloading device according to claim 2, wherein: The lifting assembly comprises sliding seats (223) slidably arranged on the side walls of the connecting rods (303), and a lifting frame (224) fixed between the two sliding seats (223), wherein the bottom end of the moving frame (100) is provided with a hydraulic cylinder (221), a connecting column (222) is fixedly connected between the extension end of the hydraulic cylinder (221) and the upper end of the lifting frame (224), and a foot pedal (225) is arranged on the lower end of the hydraulic cylinder (221).

4. A precast shaft unloading device according to claim 3, wherein: The adjusting structure comprises a lead screw (201) rotatably arranged at the front end of the lifting frame (224), the screw threads of the two ends of the lead screw (201) are opposite in direction, connecting sleeves (202) are arranged at the two ends of the lead screw (201), the connecting sleeves (202) are slidably connected with the lifting frame (224), the connecting sleeves (202) are threadedly connected with the lead screw (201), and the connecting sleeves (202) and the connecting frame (204) are fixedly connected through connecting plates (203).

5. A precast shaft unloading device according to claim 4, wherein: The upper end of the plug plate (218) is provided with an arc-shaped protrusion.

6. A precast shaft unloading device according to claim 5, wherein: A limiting seat (215) is slidably installed below the blanking table (217), one side of the limiting seat (215) near the center of the connecting frame (204) is a slope, and a limiting spring is connected between the limiting seat (215) and the inner wall of the connecting frame (204).

7. A precast well shaft unloading device according to claim 6, wherein: A plurality of rolling shafts (216) are rotatably installed on the slope of the limiting seat (215).

8. A precast well shaft unloading device according to claim 7, wherein: The sliding seat (223) and the connecting rod (303) are connected through a pulley, and the end of the lead screw (201) is fixed with a rotating wheel.

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