Concrete crack repairing injector

Abstract

The utility model discloses a concrete crack repairing injector which comprises an injection cylinder, the injection cylinder is in a hollow cylinder shape, an injection head is installed at one end of the injection cylinder, a push rod can enter the other end of the injection cylinder, threads are arranged on the outer wall of the push rod, and the push rod penetrates through a fixing part and is in threaded connection with the fixing part. The end, entering the syringe, of the push rod is provided with a piston, the other end of the push rod extends into the movable part and is rotationally connected with the movable part, the end, close to the movable part, of the fixed part is provided with a first rotating rod and a second rotating rod, one end of the first rotating rod and one end of the second rotating rod are rotationally connected with the fixed part, and the other end of the first rotating rod and the other end of the second rotating rod penetrate through the movable part and are slidably connected with the movable part. The push rod is driven to rotate through the first gear and the second gear which are different in size, the moving speed of the push rod is conveniently controlled, and the purpose of more accurately controlling the injection speed is achieved.

Description

Technical Field

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

[0002] Concrete cracks are physical structural changes caused by internal and external factors in concrete structures. Using caulking glue is a common method for repairing cracks. When injecting caulking glue into the cracks, in order to reduce glue overflow, it is necessary to control the injection speed into the cracks. For this purpose, the utility model proposes a concrete crack repair syringe. Summary of the invention

[0003] The purpose of the utility model is to provide a concrete crack repairing syringe to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete crack repair syringe, including a syringe barrel, characterized in that: the syringe barrel is hollow cylindrical, one end of which is equipped with an injection head and the other end is for a push rod to enter, a thread is arranged on the outer wall of the push rod and passes through a fixed part and is screwed to the fixed part, a piston is arranged on the end of the push rod entering the syringe, and the other end extends into the movable part and is rotatably connected to the movable part, a first rotating rod and a second rotating rod are arranged at one end of the fixed part close to the movable part, one end of the first rotating rod and the second rotating rod are rotatably connected to the fixed part, and the other end passes through the movable part and is slidably connected to the movable part.

[0005] Preferably, a first gear and a second gear are rotatably arranged in the movable part, and the first gear and the second gear are respectively meshed with a third gear installed on the push rod, and the first gear and the second gear are respectively penetrated by the first rotating rod and the second rotating rod from the center, and are respectively slidably connected to the first rotating rod and the second rotating rod.

[0006] Preferably, protrusions are provided inside the first gear and the second gear, and the protrusions are slidably connected to grooves provided on the first rotating rod and the second rotating rod respectively, and the diameter of the first gear is smaller than the diameter of the second gear.

[0007] Preferably, a slide groove is provided on the outer side of the end of the injection barrel away from the injection head, a blocking block is slidably provided on the slide groove, a first spring is provided in the slide groove, one end of the first spring is connected to the bottom of the slide groove, and the other end is connected to the blocking block, the end of the blocking block away from the connection to the first spring is sloped, a slot for the blocking block to be inserted is provided on the fixed part, a push block is slidably provided in the slot, a second spring is sleeved on the outer side of the push block, one end of the second spring is connected to the outer wall of the push block, and the other end is connected to the inner wall of the slot.

[0008] Preferably, a limit block is fixedly mounted on the push rod, and the limit block is rotatably connected to the movable part.

[0009] Compared with the prior art, the utility model has the beneficial effect that the push rod is driven to rotate by the first gear and the second gear of different sizes, so as to conveniently control the moving speed of the push rod, thereby achieving the purpose of more accurate control of the injection speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0011] Figure 2 This is a cross-sectional view of the connection between the first rotating rod and the first gear of the utility model.

[0012] In the figure: 1 injection cylinder, 11 slide groove, 12 first spring, 13 block, 2 fixed part, 21 slot, 22 push block, 23 second spring, 31 first rotating rod, 32, second rotating rod, 311 first gear, 321 second gear, 4 push rod, 41 limit block, 42 ​​third gear, 5 movable part. DETAILED DESCRIPTION

[0013] 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.

[0014] Referring to Figure (1-2), a concrete crack repair syringe includes a syringe 1, characterized in that: the syringe 1 is a hollow cylinder, one end of which is equipped with an injection head and the other end is for a push rod 4 to enter, the outer wall of the push rod 4 is provided with a thread and passes through the fixed part 2 and is screwed to the fixed part 2, the end of the push rod 4 entering the syringe 1 is equipped with a piston, the other end extends into the movable part 5 and is rotatably connected to the movable part 5, the fixed part 2 is provided with a first rotating rod 31 and a second rotating rod 32 at one end close to the movable part 5, one end of the first rotating rod 31 and the second rotating rod 32 are rotatably connected to the fixed part 2, and the other end passes through the movable part 5 and is slidably connected to the movable part 5.

[0015] Preferably, the movable part 5 is provided with a first gear 311 and a second gear 321 for rotation, the first gear 311 and the second gear 321 are respectively meshed with the third gear 42 installed on the push rod 4, the first gear 311 and the second gear 321 are respectively penetrated from the center by the first rotating rod 31 and the second rotating rod 32, and are respectively slidably connected with the first rotating rod 31 and the second rotating rod 32. The first gear 311 and the second gear 321 are provided with protrusions on the inner sides, and the protrusions are respectively slidably connected with the grooves provided on the first rotating rod 31 and the second rotating rod 32, and the diameter of the first gear 311 is smaller than the diameter of the second gear 321.

[0016] A slide groove 11 is arranged outside the end of the injection barrel 1 away from the injection head, a block 13 is slidably arranged on the slide groove 11, a first spring 12 is arranged inside the slide groove 11, one end of the first spring 12 is connected to the bottom of the slide groove 11, and the other end is connected to the block 13, and the end of the block 13 away from the first spring 12 is in a slope shape, a slot 21 for the block 13 to be inserted is provided on the fixed part 2, a push block 22 is slidably arranged inside the slot 21, a second spring 23 is sleeved outside the push block 22, one end of the second spring 23 is connected to the outer wall of the push block 22, and the other end is connected to the inner wall of the slot 21. A limit block 41 is fixedly installed on the push rod 4, and the limit block 41 is rotatably connected to the movable part 5.

[0017] When the device is in use, the piston on the push rod 4 is inserted into the injection barrel 1. During this process, the injection barrel 1 approaches the fixed part 2, and the block 13 is first pushed into the slide groove 11, and then pushed into the clamping groove 21 under the action of the first spring 12, so that the injection barrel is fixed on the fixed part 2. The first rotating rod 31 or the second rotating rod 32 is rotated, and the third gear 42 can be driven to rotate through the first gear 311 or the second gear 321, and the push rod 4 can be rotated. Since the push rod 4 is screwed to the fixed part 2, the rotation of the push rod 4 can cause the push rod 4 to be displaced relative to the fixed part 2 and the injection barrel 1 fixed on the fixed part 2, and the piston slides in the injection barrel 1 to suck or squeeze out the caulking glue from the injection barrel 1; since the diameters of the first gear 311 and the second gear 321 are different, the first rotating rod and the second rotating rod are driven to rotate at the same rotation speed, which can drive the push rod to rotate at different speeds, so that the moving speed is different, and the injection speed is also different, which can be flexibly selected by the operator according to the actual situation.

[0018] The orientations or positional relationships shown in the drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0019] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0020] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concrete crack repair syringe, comprising a syringe barrel (1), characterized in that: The injection barrel (1) is in the shape of a hollow cylinder, one end of which is equipped with an injection head and the other end is for a push rod (4) to enter. The outer wall of the push rod (4) is provided with a thread and passes through the fixed part (2) and is screwed to the fixed part (2). The end of the push rod (4) that enters the injection barrel (1) is equipped with a piston, and the other end extends into the movable part (5) and is rotatably connected to the movable part (5). The fixed part (2) is provided with a first rotating rod (31) and a second rotating rod (32) at one end close to the movable part (5). The first rotating rod (31) and the second rotating rod (32) have one end that is rotatably connected to the fixed part (2) and the other end that passes through the movable part (5) and is slidably connected to the movable part (5).

2. A concrete crack repair injector according to claim 1, characterized in that: A first gear (311) and a second gear (321) are rotatably arranged in the movable part (5); the first gear (311) and the second gear (321) are respectively meshed with a third gear (42) mounted on the push rod (4); the first gear (311) and the second gear (321) are respectively penetrated from the center by the first rotating rod (31) and the second rotating rod (32), and are respectively slidably connected to the first rotating rod (31) and the second rotating rod (32).

3. A concrete crack repair injector according to claim 2, characterized in that: The first gear (311) and the second gear (321) are provided with protrusions on their inner sides, and the protrusions are slidably connected to grooves provided on the first rotating rod (31) and the second rotating rod (32), respectively. The diameter of the first gear (311) is smaller than the diameter of the second gear (321).

4. A concrete crack repair injector according to claim 1, characterized in that: A slide groove (11) is arranged on the outer side of one end of the injection barrel (1) away from the injection head, a block (13) is slidably arranged on the slide groove (11), a first spring (12) is arranged in the slide groove (11), one end of the first spring (12) is connected to the bottom of the slide groove (11), and the other end is connected to the block (13), the end of the block (13) away from the first spring (12) is in a slope shape, a groove (21) is provided on the fixed part (2) for the block (13) to be inserted, a push block (22) is slidably arranged in the groove (21), a second spring (23) is sleeved on the outer side of the push block (22), one end of the second spring (23) is connected to the outer wall of the push block (22), and the other end is connected to the inner wall of the groove (21).

5. A concrete crack repair injector according to claim 2, characterized in that: A limit block (41) is fixedly mounted on the push rod (4), and the limit block (41) is rotatably connected to the movable part (5).

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