Device for quickly modifying and grouting existing bridge hinge joint

Abstract

The utility model discloses a device for rapid modification and grouting of an existing bridge hinge joint, which comprises an injection machine pump, a connector is arranged on a discharge port of the injection machine pump, an injection pipe is connected onto the connector, a discharge head is arranged at the end of the injection pipe, a pipe orifice regulator is arranged on the discharge head, and the pipe orifice regulator is connected with the injection machine pump. And the pipe orifice regulator is matched with the rail slider for use. The utility model relates to the technical field of bridge hinge joints, in particular to a device for quickly modifying and grouting an existing bridge hinge joint, the head end of a grouting pipeline is connected with a pipe orifice regulator in a split manner, the pipe orifice regulator can be matched with a track slider in a split manner for use, and the spraying height is preset through the pipe orifice regulator capable of automatically regulating the height during grouting. And meanwhile, the rail slider can drive the pipe orifice adjuster to slide to the grouting horizontal position, the accurate grouting position and height can be guaranteed, manual supporting and adjusting are not needed after grouting is started, operation is simpler, and transportation is more convenient due to the split structure.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge hinge joints, in particular to a device for rapid modification and grouting of hinge joints of existing bridges. Background Art

[0002] When connecting the existing gaps of precast bridge slab beams, the construction method of hinged joints is often used. Hinge joints are connected to the main bridge plates by jet grouting. This connection method requires the use of a jet machine to inject mud into the gaps.

[0003] The mortar of the jet machine mainly adopts the pipe spraying method. However, in this grouting operation, it is necessary to manually move and control the spraying head to adjust the spraying position and spraying height to ensure the accuracy of layered grouting. However, due to manual control, this method has high work intensity and is easy to cause physical injuries to workers; the position and grouting height cannot be accurately controlled, which easily leads to the waste of grouting materials and inaccurate grouting. Utility Model Content

[0004] The utility model only provides a device specially used for fast modification grouting of hinge joints of existing bridges, which reduces the work intensity, can accurately control the grouting position and height, and avoids the waste of grouting materials.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: a device for rapid modification grouting of hinged joints in existing bridges, comprising a jet pump, a joint is provided on the discharge port of the jet pump, a jet pipe is connected to the joint, a discharge head is provided on the end of the jet pipe, a nozzle regulator is provided on the discharge head, and the nozzle regulator is used in conjunction with a track slider;

[0006] The nozzle regulator comprises a connecting nozzle, the connecting nozzle is threadedly connected to the discharge head, a telescopic tube is connected to the connecting nozzle, a nozzle is arranged at the nozzle of the telescopic tube, a telescopic push rod is arranged outside the connecting nozzle, and a telescopic end of the telescopic push rod is connected to the exposed end of the telescopic tube;

[0007] A fixing hoop is disposed outside the connecting pipe opening, and the fixing hoop is separately connected to the connecting pipe opening;

[0008] The track slider includes a frame track, which is a rectangular frame structure. A pair of slide grooves are arranged on the frame track. A pair of sliding blocks extend from both sides of the fixed ring hoop and are assembled in the pair of slide grooves of the frame track. An adjusting screw rod is arranged in any of the slide grooves, and the adjusting screw rod is threadedly matched with the sliding block.

[0009] Preferably, the telescopic push rod is arranged on the outside of the connecting pipe opening parallel to the axial direction of the telescopic tube, and the end nozzle of the telescopic tube is a conical structure.

[0010] Preferably, the pair of sliding blocks is a pair of L-shaped plates, and the pair of sliding blocks is integrally connected to two sides of the fixed hoop.

[0011] Preferably, the adjusting screw rod passes through one end of the slide slot, and an adjusting knob is provided at the end of the adjusting screw rod.

[0012] Preferably, a stabilizing slide bar is arranged in the other slide groove, and a through hole is opened on the sliding block corresponding to the side and is sleeved on the stabilizing slide bar.

[0013] The utility model has the following beneficial effects: the device is used for rapid modification grouting of hinged joints of existing bridges, and the nozzle regulator is separately connected to the head end of the grouting pipeline. The nozzle regulator can be separately used in conjunction with a track slider. During grouting, the injection height is preset by the nozzle regulator that automatically adjusts the height, and the track slider can drive the nozzle regulator to slide to a horizontal position for grouting, thereby ensuring that the position and height of the grouting are accurate. After the grouting starts, no manual support and adjustment are required, and the operation is simpler. In addition, due to the split structure, it is also more convenient to transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model.

[0015] Figure 2 It is a partial top view of the utility model.

[0016] Figure 3 It is a partial enlarged view of the utility model.

[0017] In the figure: 1. jet pump; 2. jet pipe; 3. discharge head; 4. nozzle regulator; 5. track slider; 41. connecting nozzle; 42. telescopic tube; 43. telescopic push rod; 44. fixed hoop; 45. sliding block; 51. frame track; 52. adjusting screw rod; 53. stabilizing slide rod. DETAILED DESCRIPTION

[0018] 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.

[0019] like Figure 1-3As shown, a device for rapid modification grouting of hinged joints of existing bridges is provided, with a jet pump 1 as the power, a joint is provided on the discharge port of the jet pump 1, and a jet pipe 2 is connected to the joint, and concrete is sprayed out from one side of the jet pipe 2 through the operation of the jet pump 1, and a discharge head 3 is provided at the end of the jet pipe 2, and the discharge head 3 is used to connect the regulator 4, and the mortar pumped out from the discharge head 3 is sprayed through the nozzle regulator 4. The nozzle regulator 4 itself has a telescopic function, and the spraying height is adjusted by electrically controlling the telescopic distance of the nozzle regulator 4; the nozzle regulator 4 is used in conjunction with the track slider 5 to adjust the horizontal position of the nozzle regulator 4, so as to complete the position adjustment of the nozzle regulator 4.

[0020] The nozzle regulator 4 includes a connecting nozzle 41, which is threadedly connected to the discharge head 3. The upper part of the connecting nozzle 41 is a threaded hole for connecting the discharge head 3, and the lower part of the connecting nozzle 41 is connected with a telescopic tube 42, which is connected to the discharge port. During grouting, the mortar enters the connecting nozzle 41 through the discharge head 3 and then enters the telescopic tube 42. A nozzle is provided at the nozzle of the telescopic tube 42. The nozzle adopts a partial conical structure to increase the injection pressure.

[0021] In order to realize automatic adjustment of the position of the telescopic tube 42, a telescopic push rod 43 is arranged outside the connecting pipe mouth 41, and the telescopic end of the telescopic push rod 43 is connected to the exposed end of the telescopic tube 42. By setting the telescopic length of the telescopic push rod 43, the extension length of the telescopic tube 42 is controlled, thereby adjusting the height of the nozzle, and realizing precise control of the grouting height. The telescopic tube 42 is nested in the connecting pipe mouth 41, and the front end is exposed. The telescopic tube 42 realizes telescopic movement by axially sliding in the connecting pipe mouth 41.

[0022] Furthermore, in order to fix the position of the connecting pipe mouth 41 and also to cooperate with the track slider 5, a fixing hoop 44 is provided on the outside of the connecting pipe mouth 41. The fixing hoop 44 is separately connected to the connecting pipe mouth 41. When in use, the fixing hoop 44 is assembled on the track slider 5. When the connecting pipe mouth 41 completes the connection with the injection pipe 2, the track slider 5 is separately installed on the fixing hoop 44 through the connecting pipe mouth 41, thereby fixing the horizontal position of the connecting pipe mouth 41.

[0023] The track slider 5 includes a frame track 51, which is a rectangular frame structure. A pair of slide grooves are arranged on the frame track 51. A pair of sliding blocks 45 extend from both sides of the fixed hoop 44 and are assembled in the pair of slide grooves of the frame track 51. An adjusting screw rod 52 is arranged in one of the slide grooves, and the adjusting screw rod 52 is threadedly matched with the sliding block 45.

[0024] During the specific implementation process, the frame rail 51 adopts a rectangular frame structure, and the frame rail 51 is arranged at the hinge position so that the central axis of the frame rail 51 corresponds to the hinge, and a pair of slide grooves and a pair of sliding blocks 45 are horizontally limited. By driving the adjusting screw rod 52, the adjusting screw rod 52 and the sliding block 45 on this side form a screw nut mechanism, so that the sliding block 45 pushes the fixed ring hoop 44 back to move under the action of the thread, thereby pushing the pipe mouth regulator 4 to move.

[0025] Furthermore, the telescopic push rod 43 is arranged on the outer side of the connecting pipe opening 41 parallel to the axial direction of the telescopic tube 42, and the end nozzle of the telescopic tube 42 is a conical structure.

[0026] Furthermore, the pair of sliding blocks 45 is a pair of L-shaped plates, and the pair of sliding blocks 45 are integrally connected to both sides of the fixed ring hoop 44, so that the combination performance of the fixed ring hoop 44 and the sliding blocks 45 is better, avoiding the problem of the fixed ring hoop 44 falling off or being damaged.

[0027] Furthermore, the adjusting screw rod 52 passes through one end of the slide slot, and an adjusting knob is provided at the end of the adjusting screw rod 52, and the adjusting knob can be used to conveniently rotate the adjusting screw rod 52.

[0028] Furthermore, a stabilizing slide rod 53 is arranged in the other slide groove, and a through hole is opened on the sliding block 45 on the corresponding side and sleeved on the stabilizing slide rod 53. The stabilizing slide rod 53 parallel to the adjusting screw rod 52 can play a guiding role for the sliding block 45 on this side, so that the sliding blocks 45 on both sides move synchronously.

[0029] The device for rapid modification grouting of hinged joints of existing bridges has a nozzle regulator 4 connected to the head end of the grouting pipeline, and the nozzle regulator 4 is used in conjunction with a track slider 5. During grouting, the nozzle regulator 4 that automatically adjusts the height is used to preset the injection height, and the track slider 5 can drive the nozzle regulator 4 to slide to a grouting horizontal position, thereby ensuring that the position and height of the grouting are accurate. After the grouting starts, no manual support and adjustment are required, and the operation is simpler. In addition, due to the split structure, it is also more convenient to transport.

Claims

1. A device for rapid modification grouting of hinged joints of existing bridges, comprising a jet pump (1), a joint being provided on the discharge port of the jet pump (1), a jet pipe (2) being connected to the joint, a discharge head (3) being provided at the end of the jet pipe (2), characterized in that: The discharge head (3) is provided with a nozzle regulator (4), and the nozzle regulator (4) is used in conjunction with a track slider (5); The nozzle regulator (4) comprises a connecting nozzle (41), the connecting nozzle (41) is threadedly connected to the discharge head (3), a telescopic tube (42) is connected to the connecting nozzle (41), a nozzle is provided at the nozzle of the telescopic tube (42), a telescopic push rod (43) is provided outside the connecting nozzle (41), and the telescopic end of the telescopic push rod (43) is connected to the exposed end of the telescopic tube (42); A fixing hoop (44) is disposed outside the connecting pipe opening (41), and the fixing hoop (44) is separately connected to the connecting pipe opening (41); The track slider (5) comprises a frame track (51), the frame track (51) is a rectangular frame structure, a pair of slide grooves are arranged on the frame track (51), a pair of sliding blocks (45) extend from both sides of the fixed hoop (44) and are assembled in the pair of slide grooves of the frame track (51), an adjusting screw rod (52) is arranged in one of the slide grooves, and the adjusting screw rod (52) is threadedly matched with the sliding block (45).

2. The device for rapid modification grouting of hinged joints in existing bridges according to claim 1 is characterized in that: The telescopic push rod (43) is arranged on the outside of the connecting pipe opening (41) parallel to the axial direction of the telescopic tube (42), and the end nozzle of the telescopic tube (42) is a conical structure.

3. The device for rapid modification grouting of hinged joints in existing bridges according to claim 2 is characterized in that: The pair of sliding blocks (45) are a pair of L-shaped structural plates, and the pair of sliding blocks (45) are integrally connected to both sides of the fixed hoop (44).

4. The device for rapid modification grouting of hinged joints in existing bridges according to claim 3 is characterized in that: The adjusting screw rod (52) passes through one end of the slide slot, and an adjusting knob is provided at the end of the adjusting screw rod (52).

5. The device for rapid modification grouting of hinged joints in existing bridges according to claim 4 is characterized in that: A stabilizing slide bar (53) is arranged in the other slide groove, and a through hole is provided on the sliding block (45) corresponding to the side and is sleeved on the stabilizing slide bar (53).

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