Rapid repairing device for cracks of concrete gravity dam

Abstract

The utility model discloses a rapid repairing device for cracks of a concrete gravity dam, and relates to the technical field of repairing of concrete gravity dams. The device comprises a repairing mechanism, a bearing seat, a hydraulic cylinder, moving wheels, a connecting shaft, a connecting plate and a pushing shaft. After the conveying pump is started, external concrete can be pumped in through the connecting pipe and injected into the crack through the feeding pipe, after material injection is completed, the driving machine is started, forward and reverse rotation of the trowelling plate can be achieved through forward and reverse rotation of the driving machine, and therefore trowelling work can be conducted on the concrete on the crack, smoothness of the surface of the gravity dam can be guaranteed, and the service life of the gravity dam is prolonged. Time and labor are saved, and working efficiency is high; the moving purpose of the device can be achieved under the action of moving wheels, the using height of the moving wheels is changed by stretching out and drawing back a hydraulic cylinder, the hydraulic cylinder is closed until the lower end of the trowelling plate makes contact with the surface of the gravity dam, and therefore the trowelling purpose can be achieved, and the moving purpose of the device can be achieved when the lower ends of the moving wheels make contact with the ground.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete gravity dam repair, in particular to a concrete gravity dam crack quick repair device. Background Art

[0002] Concrete gravity dam refers to a dam with a concrete body. Its main feature is that it relies on the friction between the dam and the foundation surface to prevent the dam body from sliding due to horizontal forces. Concrete gravity dams are mostly built with reinforced concrete materials. Since concrete materials are affected by a series of factors such as construction technology, their own characteristics and constraints, cracks have become the most common engineering disease in concrete gravity dams. Timely repair of concrete cracks is the main measure to improve the safety performance of concrete gravity dams.

[0003] When repairing concrete cracks, a quick crack repair device is generally used. Technicians engaged in the repair of concrete gravity dams have found in actual work that although the quick crack repair device can fill mortar into the cracks for repair, after the mortar is filled, the construction workers are still required to use other equipment to smooth the filled mortar to ensure the smoothness of the gravity dam surface. This process increases the workload of the construction workers and the construction requirements are relatively high. For this reason, we propose a quick crack repair device for concrete gravity dams. Utility Model Content

[0004] The purpose of the utility model is to solve the problems mentioned in the above background technology, and provide a concrete gravity dam crack rapid repair device.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0006] A device for quickly repairing cracks in a concrete gravity dam comprises a repair mechanism, wherein the repair mechanism comprises a fixed frame, wherein two delivery pumps are installed inside the fixed frame, wherein a connecting pipe is installed on the input side of each delivery pump, and a feed pipe is installed on the output side of each delivery pump, wherein a driving machine is arranged between the two feed pipes, and wherein the lower end of the driving machine is transmission-connected to a trowel plate; a supporting seat is arranged below the fixed frame, and hydraulic cylinders are arranged at the four corners of the lower end of the supporting seat, and a moving wheel is installed on the output shaft of each hydraulic cylinder.

[0007] Furthermore, the two delivery pumps are connected to the same controller.

[0008] Furthermore, the driving machine has a built-in timer, a countersunk hole is opened at the center of the upper end of the trowel plate, the lower end of the driving shaft of the driving machine is inserted into the countersunk hole, and the trowel plate and the driving shaft are interference fit.

[0009] Furthermore, two arc-shaped through grooves are provided inside the trowel plate.

[0010] Furthermore, mounting holes are provided at four corners of the lower end of the supporting seat, the upper ends of the hydraulic cylinders are inserted into the mounting holes, and the four hydraulic cylinders are connected to the same controller.

[0011] Furthermore, the right side of the supporting seat is detachably connected with two symmetrically arranged connecting plates via a connecting shaft, and a driving shaft is installed at the upper ends of the two connecting plates.

[0012] Furthermore, the circumferential surface of the driving shaft located between the two connecting plates is sleeved with an anti-skid cylinder.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. After the delivery pump is started, the utility model can draw in concrete from the outside through the connecting pipe and inject it into the crack through the feeding pipe. After the injection is completed, the driving machine is started. The forward and reverse rotation of the driving machine can realize the forward and reverse rotation of the trowel plate, so that the concrete on the crack can be smoothed, which can ensure the smoothness of the surface of the gravity dam, save time and labor, and have high work efficiency.

[0015] 2. The utility model can achieve the purpose of moving the device under the action of the moving wheels. The use height of the moving wheels is changed by extending and retracting the hydraulic cylinder until the lower end of the trowel plate contacts the surface of the gravity dam, and then the hydraulic cylinder is closed to achieve the purpose of leveling. When the lower end of the moving wheel contacts the ground, the purpose of moving the device can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the repair mechanism in the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the utility model after the repairing mechanism is removed.

[0020] Figure numerals: 1. repair mechanism; 101. fixed frame; 102. conveying pump; 103. connecting pipe; 104. feeding pipe; 105. driving machine; 106. trowel plate; 2. supporting seat; 3. hydraulic cylinder; 4. moving wheel; 5. connecting shaft; 6. connecting plate; 7. driving shaft. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0022] See also Figure 1 - Figure 4 The utility model provides a concrete gravity dam crack rapid repair device, including a repair mechanism 1, the repair mechanism 1 includes a fixed frame 101, two delivery pumps 102 are installed inside the fixed frame 101, the input side of each delivery pump 102 is installed with a connecting pipe 103, the output side of each delivery pump 102 is installed with a feeding pipe 104, a driving machine 105 is arranged between the two feeding pipes 104, and the lower end of the driving machine 105 is transmission-connected with a trowel plate 106.

[0023] Under the action of the fixed frame 101, the installation stability of the delivery pump 102 can be guaranteed. Under the action of the delivery pump 102, the installation stability of the connecting pipe 103 and the feeding pipe 104 can be guaranteed. Under the action of the driving machine 105, the installation stability of the trowel plate 106 can be guaranteed. After starting the delivery pump 102, the external concrete can be drawn in through the connecting pipe 103 and injected into the crack through the feeding pipe 104. After the injection is completed, the driving machine 105 is started. The forward and reverse rotation of the driving machine 105 can realize the forward and reverse rotation of the trowel plate 106, so that the concrete on the crack can be smoothed, which can ensure the smoothness of the gravity dam surface, save time and labor, and have high work efficiency.

[0024] A supporting seat 2 is arranged below the fixing frame 101 , and hydraulic cylinders 3 are arranged at the four corners of the lower end of the supporting seat 2 . A moving wheel 4 is installed on the output shaft of each hydraulic cylinder 3 .

[0025] A through hole is provided inside the supporting seat 2, and the driving motor 105 is interference fit with the through hole. Under the action of the supporting seat 2, the installation stability of the driving motor 105 can be guaranteed. Similarly, under the action of the supporting seat 2, the installation stability of the hydraulic cylinder 3 can be guaranteed. Under the action of the hydraulic cylinder 3, the installation stability of the moving wheel 4 can be guaranteed, and the moving wheel 4 can be extended and retracted. Under the action of the moving wheel 4, the moving purpose of the device can be achieved. The use height of the moving wheel 4 is changed by extending and retracting the hydraulic cylinder 3 until the lower end of the trowel plate 106 contacts the surface of the gravity dam, and then the hydraulic cylinder 3 is closed to achieve the purpose of leveling. When the lower end of the moving wheel 4 contacts the ground, the moving purpose of the device can be achieved.

[0026] In this embodiment, preferably, the two delivery pumps 102 are connected to the same controller; under the action of the controller, the two delivery pumps 102 can work synchronously, thereby ensuring the uniformity of concrete delivery, that is, ensuring the effect and quality of repair.

[0027] In the present embodiment, preferably, the driving motor 105 has a built-in timer, a countersunk hole is opened at the center of the upper end of the trowel plate 106, the lower end of the driving shaft of the driving motor 105 is inserted into the countersunk hole, and the trowel plate 106 and the driving shaft are interference fit; under the action of the timer, the timed forward and reverse rotation control of the motor can be realized, that is, the feeding of the feed pipe 104 can be avoided. Under the action of the countersunk hole, the connection stability between the two driving shafts and the trowel plate 106 can be guaranteed.

[0028] In this embodiment, preferably, two arc-shaped through grooves are provided inside the trowel plate 106 ; the use of the feed pipe 104 is not affected by the through grooves.

[0029] In this embodiment, preferably, mounting holes are opened at the four corners of the lower end of the supporting seat 2, the upper end of the hydraulic cylinder 3 is inserted into the mounting hole, and the four hydraulic cylinders 3 are connected to the same controller; the installation stability of the upper end of the hydraulic cylinder 3 can be guaranteed under the action of the mounting hole, and the four hydraulic cylinders 3 can be synchronously extended and retracted under the action of the controller, thereby avoiding the tilting of the moving wheel 4 when moving.

[0030] In this embodiment, preferably, the right side of the supporting seat 2 is detachably connected with two symmetrically arranged connecting plates 6 through a connecting shaft 5, and a driving shaft 7 is installed on the upper ends of the two connecting plates 6; under the action of the supporting seat 2, the installation stability of the connecting shaft 5 can be guaranteed, under the action of the connecting shaft 5, the installation stability of the lower end of the connecting plate 6 can be guaranteed, under the action of the driving shaft 7, the connection stability of the upper end of the connecting plate 6 can be guaranteed, and the overall pushing purpose of the device can be achieved.

[0031] In this embodiment, preferably, the circumferential surface of the driving shaft 7 between the two connecting plates 6 is sleeved with an anti-skid tube; under the action of the anti-skid tube, the driving stability can be further improved.

[0032] The working principle and use process of the utility model are as follows: when the device is used, after starting the delivery pump 102, the concrete from the outside can be drawn in through the connecting pipe 103, and injected into the crack through the feeding pipe 104. After the injection is completed, the driving machine 105 is started. The forward and reverse rotation of the trowel plate 106 can be realized through the forward and reverse rotation of the driving machine 105, so that the concrete on the crack can be smoothed, which can ensure the smoothness of the surface of the gravity dam, save time and labor, and have high work efficiency. The driving machine 105 is built-in with a timer, and the timed forward and reverse rotation control of the motor can be realized under the action of the timer, that is, the feeding of the feeding pipe 104 can be avoided. The moving purpose of the device can be achieved under the action of the moving wheel 4. The use height of the moving wheel 4 is changed by extending and retracting the hydraulic cylinder 3 until the lower end of the trowel plate 106 contacts the surface of the gravity dam, and then the hydraulic cylinder 3 is closed to achieve the purpose of screeding. When the lower end of the moving wheel 4 contacts the ground, the movement purpose of the device can be achieved; the installation stability of the connecting shaft 5 can be guaranteed under the action of the supporting seat 2, the installation stability of the lower end of the connecting plate 6 can be guaranteed under the action of the connecting shaft 5, and the connection stability of the upper end of the connecting plate 6 can be guaranteed under the action of the pushing shaft 7, and the overall pushing purpose of the device can be achieved. The circumferential surface of the pushing shaft 7 between the two connecting plates 6 is sleeved with an anti-skid tube, and the pushing stability can be further improved under the action of the anti-skid tube.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A concrete gravity dam crack rapid repair device, characterized by: The invention comprises a repair mechanism (1), wherein the repair mechanism (1) comprises a fixed frame (101), wherein two delivery pumps (102) are installed inside the fixed frame (101), wherein the input side of each delivery pump (102) is installed with a connecting pipe (103), and the output side of each delivery pump (102) is installed with a feeding pipe (104), and a driving machine (105) is arranged between the two feeding pipes (104), and the lower end of the driving machine (105) is connected to a trowel plate (106) in a transmission manner; a supporting seat (2) is arranged below the fixed frame (101), and hydraulic cylinders (3) are arranged at the four corners of the lower end of the supporting seat (2), and the output shaft of each hydraulic cylinder (3) is installed with a moving wheel (4).

2. A concrete gravity dam crack rapid repair device according to claim 1, characterized in that: The two delivery pumps (102) are connected to the same controller.

3. The device for quickly repairing cracks in a concrete gravity dam according to claim 1 is characterized in that: The driving machine (105) has a built-in timer, and a countersunk hole is provided at the center of the upper end of the trowel plate (106). The lower end of the driving shaft of the driving machine (105) is inserted into the countersunk hole, and the trowel plate (106) and the driving shaft are interference fit.

4. A concrete gravity dam crack rapid repair device according to claim 1, characterized in that: The trowel plate (106) has two arc-shaped through grooves formed inside.

5. The device for quickly repairing cracks in a concrete gravity dam according to claim 1, characterized in that: The four corners of the lower end of the support seat (2) are provided with mounting holes, the upper ends of the hydraulic cylinders (3) are inserted into the mounting holes, and the four hydraulic cylinders (3) are connected to the same controller.

6. A concrete gravity dam crack rapid repair device according to claim 1, characterized in that: The right side of the support seat (2) is detachably connected to two symmetrically arranged connecting plates (6) via a connecting shaft (5), and a driving shaft (7) is installed at the upper ends of the two connecting plates (6).

7. A concrete gravity dam crack rapid repair device according to claim 6, characterized in that: The circumferential surface of the driving shaft (7) located between the two connecting plates (6) is sleeved with an anti-skid cylinder.

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