Improved bridge prestress grouting device

Abstract

The utility model relates to the field of prestressed grouting devices, and discloses an improved bridge prestressed grouting device which comprises a positioning block, the two sides of the positioning block are fixedly connected with fixing plates through a plurality of connecting rods respectively, and first electric push rods are fixedly installed in the centers of the two sides of the positioning block respectively. The movable end of each first electric push rod is fixedly connected with a movable block, each movable block slidably penetrates through the outer side of the corresponding connecting rod, the bottom end of each movable block is fixedly connected with a second electric push rod in a clamped mode, and the movable end of each second electric push rod is fixedly connected with a fixed block. Each fixing block is connected with a grouting pipe in a sliding and penetrating mode in the horizontal direction, a vertical plate is fixedly connected to the top end of each grouting pipe, third electric push rods are fixedly installed on the sides, away from each other, of the two fixing blocks in a clamped mode, and the movable end of each third electric push rod is fixedly connected with the end, close to the corresponding fixing block, of the corresponding vertical plate; the device is convenient to transport and carry, and the convenience in the using process of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of prestressed grouting devices, and particularly to an improved prestressed grouting device for bridges. Background Technique

[0002] The damage forms of concrete bridges are diverse, such as prestress loss, concrete cracking, steel bar corrosion, bearing voids, etc. These damages lead to the decline of the overall stiffness and bearing capacity of concrete bridges and are important causes of bridge diseases. In order to strengthen the process control of bridge construction quality and eliminate quality defects during construction, the grouting quality detection of prestressed ducts (corrugated pipes) of prestressed bridges is an important control link to ensure that the bridge construction quality meets the design requirements and the reasonable stress state. In the prior art during grouting, the slurry cannot be better compacted and combined.

[0003] For example, the utility model with the publication (announcement) number: CN221029622U discloses a prestressed grouting device for bridges, which specifically relates to the field of prestressed grouting devices, including two fixing plates. The opposite sides of the two fixing plates are both rotatably connected with screws. The opposite sides of the two screws are fixedly connected. A moving block is screwed on the outer side wall of the screw. An installation groove is opened at the bottom of the moving block. A first hydraulic rod is fixed inside the installation groove. The bottom end of the output shaft of the first hydraulic rod is fixed with a fixing block. A first motor, a screw, a moving block, a grouting pipe, a first hydraulic rod, a second hydraulic rod, a fixed cylinder, a clamping plate, a pressing plate, a bolt, a gear and a second motor are provided. Start the first motor and the first hydraulic rod to adjust the position of the fixing block. Start the second motor, and the second motor drives the gear to rotate, so as to adjust the position of the grouting pipe, make the pressing plate located inside the corrugated pipe, insert the external connecting pipe into the fixed cylinder and rotate the bolt, and the clamping plate clamps the external connecting pipe, so that the cement slurry enters the corrugated pipe.

[0004] The device of the above-mentioned utility model has a complex structure, the overall structure occupies a large space, and it is not convenient to transport the device before and after construction, and the practicability is low. Content of the Utility Model

[0005] The purpose of the utility model is to provide an improved prestressed grouting device for bridges to solve the problems put forward in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solutions: an improved bridge prestressed grouting device, including a positioning block. On both sides of the positioning block, a plurality of connecting rods are respectively and fixedly connected with fixing plates, and at the central positions on both sides of the positioning block, first electric push rods are respectively and fixedly installed. The movable end of each first electric push rod is respectively and fixedly connected with a movable block, and each movable block respectively and slidably penetrates through the outer side of each connecting rod. The bottom end of each movable block is respectively and fixedly connected with a second electric push rod, and the movable end of each second electric push rod is respectively and fixedly connected with a fixing block. Each fixing block slidably penetrates through a grouting pipe in the horizontal direction, and the top end of each grouting pipe is respectively and fixedly connected with a vertical plate. On the mutually remote sides of the two fixing blocks, third electric push rods are respectively and fixedly installed, and the movable end of each third electric push rod is respectively and fixedly connected with one end of the vertical plate close to the fixing block.

[0007] Preferably: A movable pipe is slidably connected inside the grouting pipe.

[0008] Preferably: At both ends of each connecting rod, a threaded connecting rod and a threaded cylinder with threaded fit are respectively arranged.

[0009] Preferably: A plurality of threaded grooves that are in threaded fit with the threaded connecting rod are symmetrically formed on both sides of the positioning block, and the plurality of threaded grooves are located in the same horizontal plane.

[0010] Preferably: A plurality of threaded posts that are in threaded fit with the threaded cylinder are respectively fixedly connected to the mutually close sides of the two fixing plates.

[0011] Preferably: Pressing plates are respectively movably connected to the mutually close ends of the two grouting pipes.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model is provided with a fixing plate fixedly connected with a plurality of connecting rods on both sides of the positioning block, wherein the plurality of connecting rods are respectively threadedly connected with the threaded connecting rods and the threaded cylinders on both sides, so that a plurality of connecting rods can be assembled according to the requirements of on-site construction, so as to meet different construction requirements. When each first electric push rod drives the movable block to move in the horizontal direction, the adjustment of the sliding length of the top of each movable block along the horizontal direction of the connecting rod is achieved, which has higher adaptability. At the same time, after the construction is completed, it is convenient to disassemble the plurality of connecting rods for transportation and carrying of the device, which has higher flexibility. The movable block and the fixed block are driven by the movable end of each first electric push rod The positions of the movable block and the fixed block are adjusted by displacing in the horizontal direction, and the vertical plate is further displaced by the movable end of each third electric push rod, thereby driving the grouting pipe connected to the fixed block by sliding through the horizontal direction, so that the grouting plate at one end of each grouting pipe is located inside the corrugated pipe, and each fixed block is driven to displace in the vertical direction by the movable end of the second electric push rod, thereby adjusting the vertical height of each fixed block and the grouting pipe, and the top of the movable block is slidably sleeved on the outside of the connecting rod to ensure the stability of the adjustment process of the device and avoid displacement of the movable block in other directions, and the slurry is injected into the corrugated pipe from the movable pipe inside the grouting pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic top view of part of the structure of the utility model.

[0016] In the figure: 1. positioning block; 2. connecting rod; 3. fixed plate; 4. first electric push rod; 5. movable block; 6. second electric push rod; 7. fixed block; 8. grouting pipe; 9. third electric push rod; 10. vertical plate; 11. moving pipe; 101. threaded groove; 201. threaded connecting rod; 202. threaded cylinder; 301. threaded column. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Embodiment 1

[0019] See also Figure 1 - Figure 2, An improved prestressed grouting device for bridges in the illustration, including a positioning block 1. On both sides of the positioning block 1, a plurality of connecting rods 2 are respectively fixedly connected to fixing plates 3. And at the central positions on both sides of the positioning block 1, first electric push rods 4 are respectively fixedly installed. The movable ends of each first electric push rod 4 are respectively fixedly connected to movable blocks 5, and each movable block 5 is respectively slidably penetrated through the outer sides of each connecting rod 2. The bottom ends of each movable block 5 are respectively clamped and fixed with second electric push rods 6, and the movable ends of each second electric push rod 6 are respectively fixedly connected to fixing blocks 7. Each fixing block 7 is respectively slidably penetrated and connected with a grouting pipe 8 in the horizontal direction, and the top ends of each grouting pipe 8 are respectively fixedly connected to vertical plates 10. On the mutually remote sides of the two fixing blocks 7, third electric push rods 9 are respectively clamped and fixedly installed, and the movable ends of each third electric push rod 9 are respectively fixedly connected to one end of the vertical plate 10 close to the fixing block 7.

[0020] In this embodiment, a movable pipe 11 is slidably connected inside the grouting pipe 8. At both ends of each connecting rod 2, a threaded connecting rod 201 and a threaded cylinder 202 with threaded fit are respectively arranged. On both sides of the positioning block 1, a plurality of threaded grooves 101 that are in threaded fit with the threaded connecting rod 201 are symmetrically opened, and the plurality of threaded grooves 101 are located in the same horizontal plane. On the mutually close sides of the two fixing plates 3, a plurality of threaded columns 301 that are in threaded fit with the threaded cylinder 202 are respectively fixedly connected. At the mutually close ends of the two grouting pipes 8, a grouting plate is respectively movably connected. In the prior art, a clamping plate is arranged at the mutually remote ends of the two grouting pipes 8 to clamp and fix the external pipe, so as to carry out the input process of the slurry, and a grouting plate is movably installed through a hydraulic rod at the close ends of the two grouting pipes 8 to carry out the grouting process. It has been fully disclosed in the prior art and will not be elaborated here.

[0021] Furthermore, a fixing plate 3 is fixedly connected to the two sides of the positioning block 1 through a plurality of connecting rods 2, wherein the plurality of connecting rods 2 are respectively threadedly connected through the threaded connecting rods 201 and the threaded cylinders 202 on both sides, so that a plurality of connecting rods 2 are assembled according to the on-site construction requirements, so as to meet different construction requirements. When each first electric push rod 4 drives the movable block 5 to move in the horizontal direction, the adjustment of the sliding length of the top of each movable block 5 along the horizontal direction of the connecting rod 2 has higher adaptability. At the same time, after the construction is completed, it is convenient to disassemble the plurality of connecting rods 2 for transportation and carrying of the device, which has higher flexibility. The movable block 5 and the fixed block 7 are driven by the movable end of each first electric push rod 4 The positions of the movable block 5 and the fixed block 7 are adjusted by displacement in the horizontal direction, and the vertical plate 10 is further displaced by the movable end of each third electric push rod 9, thereby driving the grouting pipe 8 connected to the fixed block 7 by sliding through it to be displaced in the horizontal direction, so that the grouting plate at one end of each grouting pipe 8 is located inside the corrugated pipe, and each fixed block 7 is driven by the movable end of the second electric push rod 6 to displace in the vertical direction, thereby adjusting the vertical height of each fixed block 7 and the grouting pipe 8, and the top of the movable block 5 is slidably sleeved on the outside of the connecting rod 2 to ensure the stability of the device adjustment process and avoid displacement of the movable block 5 in other directions, and the slurry is injected into the corrugated pipe from the movable pipe 11 inside the grouting pipe 8.

[0022] The working principle of the utility model is as follows: a fixed plate 3 is fixedly connected to the positioning block 1 by a plurality of connecting rods 2, wherein a plurality of connecting rods 2 are respectively threadedly connected by the threaded connecting rods 201 and the threaded cylinders 202 on both sides, so that a plurality of connecting rods 2 are assembled according to the on-site construction requirements, so as to meet different construction requirements. When each first electric push rod 4 drives the movable block 5 to move in the horizontal direction, the adjustment of the sliding length of the top of each movable block 5 along the horizontal direction of the connecting rod 2 has higher adaptability. At the same time, after the construction is completed, it is convenient to disassemble the plurality of connecting rods 2 for transportation and carrying of the device, which has higher flexibility. By driving the movable block 5 and the fixed plate 3 with the movable end of each first electric push rod 4, the movable block 5 and the fixed plate 3 are moved horizontally. The fixed block 7 is displaced in the horizontal direction to adjust the position of the movable block 5 and the fixed block 7, and the vertical plate 10 is further displaced by the movable end of each third electric push rod 9, thereby driving the grouting pipe 8 that is slidably connected to the fixed block 7 to be displaced in the horizontal direction, so that the grouting plate at one end of each grouting pipe 8 is located inside the corrugated pipe, and each fixed block 7 is driven by the movable end of the second electric push rod 6 to displace in the vertical direction, thereby adjusting the vertical height of each fixed block 7 and the grouting pipe 8, and the top of the movable block 5 is slidably sleeved on the outside of the connecting rod 2 to ensure the stability of the device adjustment process and avoid displacement of the movable block 5 in other directions. The slurry is injected into the corrugated pipe from the movable pipe 11 inside the grouting pipe 8.

[0023] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0024] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An improved bridge prestressed grouting device, comprising a positioning block (1), characterized in that: The two sides of the positioning block (1) are respectively fixedly connected to the fixed plates (3) through a plurality of connecting rods (2), and the first electric push rods (4) are respectively fixedly installed at the center positions of the two sides of the positioning block (1), and the movable end of each of the first electric push rods (4) is respectively fixedly connected to the movable block (5), and each movable block (5) is respectively slidably penetrated with the outer side of each connecting rod (2), and the bottom end of each movable block (5) is respectively clamped and fixed with the second electric push rod (6), and the movable end of each second electric push rod (6) is respectively fixedly connected with the fixed block (7), and each of the fixed blocks (7) is respectively slidably penetrated and connected with the grouting pipe (8) in the horizontal direction, and the top of each grouting pipe (8) is respectively fixedly connected with the vertical plate (10), and the two fixed blocks (7) are respectively clamped and fixedly installed with the third electric push rods (9) on the side away from each other, and the movable end of each third electric push rod (9) is respectively fixedly connected to the end of the vertical plate (10) close to the fixed block (7).

2. The improved bridge prestressed grouting device according to claim 1 is characterized in that: The grouting pipe (8) is slidably connected to a moving pipe (11).

3. The improved bridge prestressed grouting device according to claim 2 is characterized in that: Each connecting rod (2) is provided with a threaded connecting rod (201) and a threaded barrel (202) respectively at both ends thereof, which are threadably connected.

4. The improved bridge prestressed grouting device according to claim 3 is characterized in that: A plurality of thread grooves (101) that are threadably matched with the threaded connecting rod (201) are symmetrically provided on both sides of the positioning block (1), and the plurality of thread grooves (101) are located in the same horizontal plane.

5. The improved bridge prestressed grouting device according to claim 4 is characterized in that: A plurality of threaded columns (301) threadably matched with the threaded barrel (202) are respectively fixedly connected to one side of the two fixing plates (3) close to each other.

6. The improved bridge prestressed grouting device according to claim 5 is characterized in that: The two grouting pipes (8) are movably connected with grouting plates at one end close to each other.

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