A dual-purpose hole washing and glue injection device based on chemical reinforcement implantation technology

Abstract

The present invention belongs to the technical field of devices for rebar planting, and in particular, relates to a dual-purpose device for hole washing and glue injection based on chemical rebar planting technology. The present invention arranges a glue injection tube, a piston, a push rod, a fixed frame unit, an extension tube unit, a soft and hard combination tube unit, and a tube body unit for hole washing on the cylinder body, so that: 1. The cylinder body is not filled with rebar planting glue first, and the soft and hard combination tube unit is connected to the tube body unit for hole washing, and the extension tube unit is separated from the glue injection tube. At this time, the piston is quickly pulled outward and slowly pushed inward, so that the borehole can be fully blown and washed; 2. The cylinder body is then filled with rebar planting glue, and the soft and hard combination tube unit is separated from the tube body unit for hole washing, and the extension tube unit is connected to the glue injection tube, and the glue injection operation can be performed at this time. Finally, it is ensured that the device has the advantages of dual-purpose hole washing and glue injection, and both are sufficient and efficient.

Description

Technical Field

[0001] The invention belongs to the technical field of devices for rebar planting, and in particular relates to a dual-purpose hole washing and glue injection device based on chemical rebar planting technology. Background Art

[0002] Chemical rebar embedding technology refers to the connection strength between the drilled hole in the base material and the embedded steel bar, which is guaranteed by a specific chemical glue. Generally, the chemical glue refers to high-strength rebar embedding glue.

[0003] On the other hand, the general steps of chemical rebar embedding technology include: positioning, drilling, hole washing, glue injection, rebar embedding, and maintenance. Among them, the common hole washing method is to use a pipe brush to scrape the debris in the base material drilling hole, and the common glue injection method is to use a general glue gun to operate.

[0004] The above-mentioned hole washing and glue injection methods are basically effective, but there is still a lot of room for improvement. For example, how to use a single device or instrument to complete the above two actions to make the operation of chemical rebar implantation technology simpler.

[0005] The Chinese utility model patent with patent announcement number CN214740142U and announcement date of November 16, 2021, discloses a rebar glue injection tool, including an outer cylinder, one end of the outer cylinder is fixedly connected to a sealing plate, the sealing plate is fixedly connected to a grouting pipe, the grouting pipe is connected to the interior of the outer cylinder, and the other end of the outer cylinder is provided with an axially movable push rod, the push rod is fixedly connected to a piston, the piston is located in the outer cylinder and is sealed and slidably connected to the outer cylinder.

[0006] The glue injection tool in this utility model patent mainly relies on the outer tube and the grouting pipe for the glue injection operation. In addition, the grouting pipe can also be inserted into the drill hole of the substrate to perform appropriate debris removal operations in the hole. However, the overall hole washing operation is not sufficient, and there will still be a lot of debris generated during drilling in the hole, which will significantly reduce the connection strength of the high-strength rebar embedding glue.

[0007] Therefore, in summary, there is an urgent need for a "two-in-one" device that can fully implement both hole washing and glue injection operations and is significantly effective for use in chemical rebar embedding construction operations. Summary of the invention

[0008] The present invention provides a dual-purpose hole washing and glue injection device based on chemical reinforcement planting technology, which can be arranged on a cylinder body by a glue injection tube, a piston, a push rod, a fixing frame unit, an extension tube unit, a soft and hard combination tube unit, and a hole washing tube unit, so that:

[0009] 1. Do not install the rebar glue in the cylinder first, and the soft and hard combined pipe unit is connected to the pipe unit for hole washing, and the extension pipe unit is separated from the injection pipe. At this time, the piston is pulled out quickly and pushed in slowly, so that the borehole can be fully blown and washed;

[0010] 2. Rebar embedding glue is then loaded into the cylinder, and the soft and hard combined pipe unit is separated from the pipe body unit for hole washing, and the extension pipe unit is connected to the glue injection hose. At this time, the glue injection operation can be carried out.

[0011] Finally, it is ensured that the device has the advantages of dual purpose of hole washing and glue injection, and both are sufficient and efficient.

[0012] The technical solution adopted by the present invention to solve the above-mentioned problems is: a dual-purpose hole washing and glue injection device based on chemical rebar embedding technology, the structure of which includes a cylinder, a glue injection tube, a piston, and a push rod, and also includes a fixed frame unit arranged on the outer ring surface of the cylinder and used for supporting on the substrate, an extension tube unit sleeved on the glue injection tube, a soft and hard combination tube unit sleeved on the fixed frame unit and used for pushing the extension tube unit into the drilled hole, and a hole washing tube body unit arranged on the cylinder and located on both sides of the piston respectively with the glue injection tube and used for supplying air to the soft and hard combination tube unit.

[0013] A further preferred technical solution is that the fixing frame unit comprises a movable ring arranged on the outer ring surface of the cylinder, a mounting rod inserted into the movable ring, and a substrate support plate arranged on the end surface of the mounting rod.

[0014] A further preferred technical solution is that the extension tube unit includes a movable tube sleeved on the glue injection tube, a mounting groove arranged on the outer end face of the hole of the movable tube and used to plug in the soft and hard combination tube unit, an air blowing groove arranged in the mounting groove and used to block and limit the soft and hard combination tube unit, and an air blowing hole arranged on the air blowing groove and the outer ring surface of the movable tube.

[0015] A further preferred technical solution is that the extension tube unit further comprises a lifting column arranged on the inner end surface of the hole of the movable tube, and a sealing ring arranged on the inner annular surface of the movable tube.

[0016] A further preferred technical solution is that the soft and hard combination pipe unit includes an adjustment ring sleeved on the mounting rod, a hard adjustment pipe arranged on the outer ring surface of the adjustment ring, a hard insert pipe arranged at one end of the hard adjustment pipe and plugged into the mounting groove, a hose arranged at the other end of the hard adjustment pipe, and a threaded cover arranged on the hose and used to connect the hole washing pipe body unit.

[0017] A further preferred technical solution is that: the number of the soft-hard combination pipe units is 2, one of the threaded caps is an inner and outer two-layer threaded cap, and when the glue injection pipe is performing the glue injection operation, the two threaded caps are screwed together and closed.

[0018] A further preferred technical solution is that the soft-hard combined tube unit also includes a colored coating disposed on the outer annular surface of the hard insert tube and used to directly indicate the side of the substrate and indirectly indicate the amount of glue injection.

[0019] A further preferred technical solution is that the hole washing tube unit includes a sealing ring arranged on the inner annular surface of the cylinder and used to clamp the push rod, and two external threaded tubes arranged on the cylinder and located between the sealing ring and the piston and respectively used to install the two threaded covers.

[0020] A further preferred technical solution is that: the sealing ring is provided with an opening for passing the push rod, the opening is in a cross shape or a circle, and the distance between the opening and the side surface of the push rod is in the range of 1.0-1.5 mm.

[0021] A further preferred technical solution is that the outer diameter of one of the externally threaded tubes is 3-5 cm, and the outer diameter of the other externally threaded tube is 1-2 cm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the position structure of the pipe body unit for hole washing in the present invention.

[0024] Figure 3 It is a schematic diagram of the position structure of the extension tube unit in the present invention.

[0025] Figure 4 It is a schematic diagram of the position structure of the fixing frame unit in the present invention.

[0026] Figure 5 It is a schematic diagram of the fully inserted state of the extension tube unit in the present invention.

[0027] Figure 6 Schematic diagram of the hole washing method of the present invention

[0028] Figure 7 It is a schematic diagram of the use of the present invention in which two threaded covers are screwed together and closed during glue injection.

[0029] Figure 8 Schematic diagram of the use of the colored coating in the present invention.

[0030] In the figure, the meanings of the symbols are as follows:

[0031] Substrate a, drilling hole b, extension tube unit insertion direction c, hole flushing piston movement direction d, debris discharge direction e, color coating alignment line f;

[0032] Cylinder 11, glue injection tube 12, piston 13, push rod 14;

[0033] Fixed frame unit 1, extension pipe unit 2, soft and hard combination pipe unit 3, hole washing pipe unit 4;

[0034] Movable ring 101, mounting rod 102, substrate support plate 103, movable tube 201, mounting groove 202, blowing groove 203, blowing hole 204, lifting column 205, sealing ring 206, adjustment ring 301, hard adjustment tube 302, hard insert tube 303, hose 304, threaded cover 305, colored coating 306, sealing ring 401, external threaded tube 402. DETAILED DESCRIPTION

[0035] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention.

[0036] As attached Figure 1-8 As shown, a dual-purpose hole washing and glue injection device based on the chemical rebar embedding technology comprises a cylinder 11, a glue injection tube 12, a piston 13, and a push rod 14, and also comprises a fixing frame unit 1 arranged on the outer ring surface of the cylinder 11 and used for supporting on a substrate a, an extension tube unit 2 sleeved on the glue injection tube 12, a soft-hard combination tube unit 3 sleeved on the fixing frame unit 1 and used for pushing the extension tube unit 2 into the borehole b, and a hole washing tube body unit 4 arranged on the cylinder 11 and located on both sides of the piston 13 respectively with the glue injection tube 12 and used for supplying air to the soft-hard combination tube unit 3.

[0037] In this embodiment, the general method of using the dual-purpose device is as follows.

[0038] First, the device is in a ready-to-use state in which the injection tube 12 and the extension tube unit 2 are largely plugged in, and the overall length of the entire device is relatively small, which is convenient for storage and transportation, and the soft-hard combination tube unit 3 is also connected to the hole-washing tube body unit 4 to avoid the former from being entangled and knotted inside the device or between devices due to large-scale scattering.

[0039] Second, when using, the hole washing operation is performed first, and no matter whether it is hole washing or glue injection, the extension tube unit 2 is required to be inserted into the drilled hole b to the bottom, so that the hole position can be fully washed by blowing, and the glue injection operation is fully carried out from the inside to the outside to minimize the holes in the glue block.

[0040] The specific operation method is: first press the fixing frame unit 1 firmly on the side of the substrate a, and then push the extension tube unit 2 inwardly by relying on the soft and hard combination tube unit 3 until it can no longer be pushed and it rests against the innermost part of the drill hole b.

[0041] Third, the fixing frame unit 1 is still pressed and the cylinder body 11 is pulled outward until the injection tube 12 is separated from the extension tube unit 2 .

[0042] The hole washing operation is specifically as follows: the piston 13 is pulled outward to compress the hole washing tube unit 4, and the latter's compression action is reflected on the extension tube unit 2, that is, a blowing action, so that the borehole b can be cleaned.

[0043] The purpose of the above-mentioned disengagement operation is: the blowing and hole washing effects of the extension tube unit 2 rely on the rapid outward pulling of the piston 13. At this time, the glue injection tube 12 is just in the opposite suction state, so if the glue injection tube 12 is still connected to the extension tube unit 2, the debris in the hole will easily enter and block the glue injection tube 12. This is not allowed and needs to be avoided. The correct debris discharge method is the debris discharge direction e.

[0044] Fourth, generally, the depths of the holes b in this batch are the same, so the order of the entire hole washing-glue injection operation is to complete all the hole washing operations first, and then perform continuous glue injection. During continuous hole washing, the structure of the device itself does not need to be adjusted, and it is only necessary to perform sufficient and appropriate rapid pulling out of the piston 13 in each hole b.

[0045] Fifth, after the hole washing operation is completed, the soft and hard combination tube unit 3 is first separated from the hole washing tube body unit 4, and the glue injection tube 12 is then connected to the extension tube unit 2. Then the extension tube unit 2 is used to absorb the rebar glue in the glue barrel, and fully perform the glue injection operation from the inside to the outside in the drilled hole b. Finally, the extension tube unit 2 is pulled out. At this time, the rebar glue in the reserved holes after pulling out can be appropriately supplemented so that the exposed surface of the glue block is approximately parallel to the side of the substrate a.

[0046] In addition, the following situations require special explanation.

[0047] The specific hole washing and glue injection operation of the extension tube unit 2 is: the innermost "point-shaped" glue injection and the overall "surface-shaped" air blowing and hole washing on the tube. The purpose is that the former's reinforcement glue can fully fill the borehole b, and the latter's blowing action can fully cover the entire borehole b.

[0048] If the hole washing airflow is also ejected separately from the inner pipe opening of the extension tube unit 2, a large amount of kinetic energy of the airflow is all used to impact the inner end face of the borehole b, and at this time, it is impossible to vigorously blow away various debris and impurities attached to the inner annular surface of the borehole b.

[0049] This is the purpose that the structure of the extension tube unit 2 is relatively complex and needs to distinguish between hole washing and glue injection methods.

[0050] The fixing frame unit 1 includes a movable ring 101 disposed on the outer ring surface of the cylinder 11 , a mounting rod 102 inserted into the movable ring 101 , and a substrate supporting plate 103 disposed on the end surface of the mounting rod 102 .

[0051] In this embodiment, the number of the fixing frame units 1 is 2-4, and it is not necessary to provide the soft-hard combination pipe unit 3 on each mounting rod 102 .

[0052] In addition, the movable ring 101 is fixedly connected to the outer ring surface of the cylinder 11 , and the word “movable” means that it can be slidably adjusted relative to the installation rod 102 .

[0053] Finally, the function of the mounting rod 102 is to provide a larger supporting area and supporting stability on the side of the substrate a.

[0054] The extension tube unit 2 includes a movable tube 201 which is sleeved on the injection tube 12, a mounting groove 202 which is arranged on the outer end face of the hole of the movable tube 201 and is used to insert the soft and hard combination tube unit 3, an air blowing groove 203 which is arranged in the mounting groove 202 and is used to block and limit the soft and hard combination tube unit 3, and an air blowing hole 204 which is arranged on the air blowing groove 203 and the outer ring surface of the movable tube 201.

[0055] In this embodiment, the inner pipe opening of the movable tube 201 is a single glue injection position, and the rows of blowing holes 204 are integrated blowing and hole washing positions. The former ensures sufficient glue injection from the inside to the outside, and the latter ensures that the inner annular surface of the drilled hole b can be blown by the airflow.

[0056] The size of the slot of the installation slot 202 is larger than the blowing slot 203 , so that the soft-hard combination pipe unit 3 has an inwardly pushed action surface.

[0057] Moreover, the number of the blowing slots 203 can be greater than the number of the mounting slots 202, and connecting holes can be provided between the former, so that the number of rows of the blowing holes 204 is not limited by the number of the soft and hard combination pipe units 3, for example:

[0058] There are two soft-hard combination pipe units 3, but 3-5 blowing grooves 203 can be provided to ensure that there are sufficient and appropriate number of blowing holes 204 on the outer ring surface of the movable pipe 201.

[0059] The extension tube unit 2 further includes a lifting column 205 disposed on the inner end surface of the hole of the movable tube 201 , and a sealing ring 206 disposed on the inner annular surface of the movable tube 201 .

[0060] In this embodiment, the lifting column 205 is used to properly expose the inner tube opening of the movable tube 201, otherwise the rebar embedding glue will be directly blocked by the inner end surface of the drill hole b and cannot come out.

[0061] The number of the sealing rings 206 is two, and the material is the existing rubber used for sealing rings, so as to ensure that the joint between the movable tube 201 and the injection tube 12 does not leak a large amount of the reinforcing bar glue.

[0062] The soft-hard combination pipe unit 3 includes an adjustment ring 301 sleeved on the mounting rod 102, a hard adjustment pipe 302 arranged on the outer ring surface of the adjustment ring 301, a hard insert pipe 303 arranged at one end of the hard adjustment pipe 302 and plugged into the mounting groove 202, a hose 304 arranged at the other end of the hard adjustment pipe 302, and a threaded cover 305 arranged on the hose 304 and used to connect the hole washing pipe body unit 4.

[0063] In this embodiment, the adjustment ring 301 , the hard adjustment tube 302 , the hard insertion tube 303 , and the threaded cover 305 are all made of existing hard plastics, and the hose 304 is made of soft rubber.

[0064] The functions of the soft-hard combination tube unit 3 at least include:

[0065] 1. The compressed gas in the hole washing pipe unit 4 passes through the threaded cover 305, the hose 304, the hard regulating pipe 302, the hard inserting pipe 303, the mounting groove 202, the blowing groove 203 in sequence, and is finally discharged at the blowing hole 204, so as to perform a hole washing operation in the borehole b;

[0066] 2. Push the extension tube unit 2 into the borehole b until it reaches the bottom.

[0067] Finally, the adjustment ring 301 is not arranged on the ventilation pipeline of the soft-hard combination pipe unit 3, and the former is solid.

[0068] The number of the soft-hard combination pipe units 3 is 2, that is, corresponding to a total of 2 threaded caps 305. One of the threaded caps 305 is an inner and outer double-layer threaded cap, and the other is a common inner threaded cap. When the glue injection pipe 12 is performing the glue injection operation, the two threaded caps 305 are screwed together and closed.

[0069] In this embodiment, it should be noted that when the device is performing the glue injection operation, a small amount of rebar embedding glue will inevitably enter the air hole 204. This amount needs to be reduced as much as possible and is relatively harmful.

[0070] Therefore, this is the purpose of the two threaded covers 305 being screwed together to close each other, in order to seal the air pressure, change the blowing hole 204 from a "connected hole" to a "blocked groove", and minimize the amount of rebar embedding glue entering the blowing hole 204.

[0071] Finally, for example, most of the anchor glue enters the blowing groove 203, otherwise if the two threaded covers 305 are not screwed together and closed, the anchor glue will even flow out of the threaded covers 305, which will block the entire hole washing pipeline and cause a large amount of glue waste.

[0072] The soft-hard combination tube unit 3 further includes a colored coating 306 disposed on the outer annular surface of the hard insert tube 303 and used to directly indicate the side surface of the substrate a and indirectly indicate the amount of glue injection.

[0073] In this embodiment, the outer end face of the colored coating 306 is aligned with the side face of the substrate a, that is, the anchor glue completely covers the colored coating 306 and the colored coating 306 is no longer visible, which is the end point of the glue injection operation. This method can minimize the situation where excessive anchor glue is injected.

[0074] However, it should be noted that when the glue injection operation is completed and the device is pulled out, the extension tube unit 2 and the glue injection tube 12 will leave a hole space and adhere to and take away some glue, which will cause the glue block to collapse.

[0075] If the loss of this part of the rubber block does not require the reinforcement effect, the colored coating alignment line f can be used normally. However, if the loss of this part of the rubber block needs to be compensated, the colored coating alignment line f can be set to move outward, for example, 0.3-0.5cm, that is, the outer end face of the colored coating 306 is more protruding than the side of the substrate a by 0.3-0.5cm.

[0076] The hole washing tube unit 4 includes a sealing ring 401 arranged on the inner ring surface of the cylinder 11 and used to clamp the push rod 14, and two external threaded tubes 402 arranged on the cylinder 11 and located between the sealing ring 401 and the piston 13 and used to install the two threaded covers 305 respectively.

[0077] In this embodiment, the sealing ring 401 does not need to fit tightly with the push rod 14, otherwise the latter may be difficult to push and pull. After all, the piston 13 is pulled out relatively quickly, so the intensity of the hole washing airflow discharged from the extension tube unit 2 is sufficient.

[0078] On the other hand, when the device absorbs the rebar-embedding glue, the maximum backward pulling range of the piston 13 cannot exceed the external threaded tube 402, otherwise the rebar-embedding glue may be discharged from the external threaded tube 402, which is an ineffective waste.

[0079] The sealing ring 401 is provided with an opening for passing the push rod 14 . The shape of the opening is a cross or a circle. The distance between the opening and the side surface of the push rod 14 is in the range of 1.0-1.5 mm.

[0080] In the prior art, the cross-sectional shape of the push rod 14 may be circular or cross-shaped, and the opening may correspond to the shape thereof.

[0081] The outer diameter of one of the externally threaded tubes 402 is 3-5 cm, and the outer diameter of the other externally threaded tube 402 is 1-2 cm.

[0082] In this embodiment, the two external threaded tubes 402 are one large and one small, that is, the corresponding two threaded covers 305 are also one large and one small, which can ensure that the two threaded covers 305 are screwed together and closed when the device is injected with glue.

[0083] Finally, the ends of the blowing holes 204, i.e., the two threaded covers 305 that are screwed together, are closed rather than connected, which can greatly increase the difficulty of the rebar embedding glue entering the blowing holes 204 and ultimately reduce the waste of the rebar embedding glue.

[0084] In addition, after all the rebar embedding operations of the batch of drilling holes b are completed and before the device is stored and sorted, the glue in the blowing holes 204 is discharged in the same way as the blowing and washing operation.

[0085] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various modifications can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the present invention. These are all non-creative modifications and are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A dual-purpose hole washing and glue injection device based on chemical reinforcement embedding technology, the structure comprising a cylinder (11), a glue injection tube (12), a piston (13), and a push rod (14), characterized in that: It also includes a fixing frame unit (1) arranged on the outer annular surface of the cylinder (11) and used for supporting the substrate (a), an extension tube unit (2) sleeved on the glue injection tube (12), a soft-hard combination tube unit (3) sleeved on the fixing frame unit (1) and used for pushing the extension tube unit (2) into the borehole (b), and a hole washing tube unit (4) arranged on the cylinder (11) and located on both sides of the piston (13) with the glue injection tube (12) and used for supplying air to the soft-hard combination tube unit (3). The fixing frame unit (1) comprises a movable ring (101) arranged on the outer ring surface of the cylinder (11), a mounting rod (102) inserted into the movable ring (101), and a substrate support plate (103) arranged on the end surface of the mounting rod (102). The extension tube unit (2) comprises a movable tube (201) sleeved on the glue injection tube (12), a mounting groove (202) disposed on the outer end surface of the hole of the movable tube (201) and used for plugging the soft and hard combination tube unit (3), an air blowing groove (203) disposed in the mounting groove (202) and used for blocking and limiting the soft and hard combination tube unit (3), and an air blowing hole (204) disposed on the air blowing groove (203) and the outer annular surface of the movable tube (201). The soft-hard combined pipe unit (3) comprises an adjustment ring (301) sleeved on the mounting rod (102), a hard adjustment pipe (302) arranged on the outer annular surface of the adjustment ring (301), a hard insert pipe (303) arranged at one end of the hard adjustment pipe (302) and inserted into the mounting groove (202), a hose (304) arranged at the other end of the hard adjustment pipe (302), and a threaded cap (305) arranged on the hose (304) and used to connect to the hole washing pipe body unit (4). The number of the soft-hard combination pipe units (3) is two, one of the threaded covers (305) is an inner and outer double-layer threaded cover, and when the glue injection pipe (12) is performing a glue injection operation, the two threaded covers (305) are screwed together and closed. The hole washing tube unit (4) comprises a sealing ring (401) arranged on the inner ring surface of the cylinder (11) and used to clamp the push rod (14), and two externally threaded tubes (402) arranged on the cylinder (11) and located between the sealing ring (401) and the piston (13) and used to install the two threaded covers (305) respectively.

2. According to claim 1, a dual-purpose hole washing and glue injection device based on chemical reinforcement planting technology is characterized in that: The extension tube unit (2) further comprises a lifting column (205) arranged on the inner end surface of the hole of the movable tube (201), and a sealing ring (206) arranged on the inner annular surface of the movable tube (201).

3. According to claim 1, a dual-purpose hole washing and glue injection device based on chemical reinforcement embedding technology is characterized in that: The soft-hard combined tube unit (3) also includes a colored coating (306) disposed on the outer annular surface of the hard insert tube (303) and used to directly indicate the side of the substrate (a) and indirectly indicate the amount of glue injected.

4. According to claim 1, a dual-purpose hole washing and glue injection device based on chemical reinforcement embedding technology is characterized in that: The sealing ring (401) is provided with an opening for passing the push rod (14), the opening is in a cross shape or a circle, and the distance between the opening and the side surface of the push rod (14) is in the range of 1.0-1.5 mm.

5. According to claim 1, a dual-purpose hole washing and glue injection device based on chemical reinforcement embedding technology is characterized in that: The outer diameter of one of the externally threaded tubes (402) is 3-5 cm, and the outer diameter of the other externally threaded tube (402) is 1-2 cm.

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