Civil construction engineering structure gap grouting device

Abstract

The utility model relates to the technical field of grouting devices, in particular to a civil construction engineering structure gap grouting device which can effectively improve the stability of a grouting nail in a hole, and comprises the grouting nail, a flow channel is arranged in the grouting nail, a plurality of supporting pieces are fixedly arranged on the outer wall of the grouting nail, the supporting pieces are elastic, and the grouting nail is arranged in the flow channel. In a normal state, one end of the supporting piece is in a tilted state, a sleeve is slidably connected to the outer portion of the grouting nail, the inner wall of the sleeve can apply pressure to the tilted supporting piece, a through groove for the supporting piece to penetrate through is formed in the sleeve, and when the sleeve slides to the through groove and is aligned with the supporting piece, one end of the supporting piece can penetrate through the through groove and tilt up. The supporting piece supports the inner wall of the grouting hole, the tilting end of the supporting piece faces the opening end of the grouting hole, a connector is arranged at the injection end of the flow channel, a limiting block used for limiting the movement range of the sleeve is fixedly arranged on the outer surface of the grouting nail, a driving part used for driving the sleeve to move is arranged on the outer surface of the sleeve, and anti-skid lines are arranged on the driving part.

Description

TECHNICAL FIELD

[0001] The utility model relates to grouting device technical field, concretely is a civil engineering structure gap grouting device. BACKGROUND

[0002] It is known that civil engineering is the collective term of scientific technology of building various engineering facilities, it is not only the applied material, equipment and the technology activity of surveying, designing, construction, maintaining and so on that are carried out, but also the object of engineering construction, that is, building on the ground or underground, on land or in water, directly or indirectly for human life, production, military, scientific research service various engineering facilities, in civil engineering structure construction, need to carry out grouting to some cracks, prevent the crack from becoming larger, to improve the load capacity of concrete.

[0003] In the key link of using high pressure grouting machine to implement high pressure grouting operation, the existing grouting nail is difficult to be stably maintained in the grouting hole of the building body. Under high pressure, the grouting material is injected with a large pressure impact on the grouting nail, which makes the grouting nail unbalanced, and the falling phenomenon occurs frequently. This not only breaks the normal grouting process, causes the injected material to flow back and leak due to the sudden change of pressure and the damage of the seal, affects the crack filling density, but also requires the construction personnel to pause work, clean the hole again, and place the grouting nail, which greatly increases the construction time cost and operation complexity, and seriously delays the engineering progress. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the defects of the prior art, the utility model provides a civil engineering structure gap grouting device, which can effectively improve the stability of the grouting nail in the hole.

[0006] (II) technical scheme

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a civil engineering structure gap grouting device, comprising a grouting nail, a flow channel is arranged in the grouting nail, a plurality of supporting pieces are fixed on the outer wall of the grouting nail, the supporting pieces have elasticity, and one end of the supporting pieces is in a raised state under normal conditions, a sleeve is slidably connected to the outside of the grouting nail, the inner wall of the sleeve can press the raised supporting pieces, a through groove is formed in the sleeve for the supporting pieces to pass through, when the sleeve slides to align the through groove and the supporting pieces, one end of the supporting pieces can pass through the through groove and be raised to support the inner wall of the grouting hole.

[0008] Further, the raised end of the supporting piece faces the opening end of the grouting hole.

[0009] Further, a connecting head is arranged on the injection end of the flow channel.

[0010] Further, a limiting block is fixedly arranged on the outer surface of the grouting nail to limit the movement range of the sleeve.

[0011] Further, a driving part for driving the sleeve to move is arranged on the outer surface of the sleeve, and the driving part is provided with anti-skid lines.

[0012] Further, a baffle is arranged on the inner wall of the sleeve and located on both sides of the supporting part.

[0013] Further, a rubber ring is arranged on the outer part of the grouting nail.

[0014] (Three) beneficial effects

[0015] Compared with the prior art, the civil engineering structure gap grouting device has the following beneficial effects:

[0016] The civil engineering structure gap grouting device has the following beneficial effects: the supporting part is arranged in a normal state, the grouting nail is arranged in the grouting hole, the end of the supporting part is raised due to the elasticity of the supporting part, the end of the supporting part is closely attached to the inner wall of the grouting hole, the supporting part is pressed against the inner wall of the grouting hole when high-pressure grouting is performed, strong friction and resistance are generated, the grouting nail is locked, and the grouting nail is prevented from falling off, so that the continuous and stable grouting is ensured, and the repair quality and durability of the wall crack are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the alignment of the through groove and the supporting part of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view of the folding of the sleeve on the supporting part of the utility model;

[0019] Figure 3 It is a three-dimensional structure schematic view of the utility model without installing the sleeve;

[0020] Figure 4 It is a sectional structure schematic view of the utility model; Figure 1

[0021] It is a sectional structure schematic view of the utility model; Figure 5 Figure 2 It is a first three-dimensional structure schematic view of the sleeve of the utility model;

[0022] Figure 6 It is a second three-dimensional structure schematic view of the sleeve of the utility model;

[0023] Figure 7 It is a sectional structure schematic view of the sleeve of the utility model.

[0024] Figure 8 ​​

[0025] Fig. 1, grouting nail; 2, flow channel; 3, support; 4, sleeve; 5, through slot; 6, limiting block; 7, driving part; 8, rubber ring; 9, baffle; 10, connecting head. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] Please refer to Figures 1-8 The utility model discloses a civil engineering structure gap grouting device, including grouting nail 1, grouting nail 1 is installed in the grouting hole of building body in advance, the inside of grouting nail 1 is provided with flow channel 2, is used for conveying caulking grout, the injection end of flow channel 2 is provided with connecting head 10, the outer wall of grouting nail 1 is fixed with a plurality of supports 3, support 3 has elasticity, the one end of support 3 is in the state of warping under normal circumstances, after grouting nail 1 is installed in the grouting hole, support 3 is closely attached to the inner wall of grouting hole, and support 3 is resisted to the inner wall of grouting hole, and strong friction and resistance are generated, and the stability of grouting nail 1 in the grouting hole is improved, in order to further improve the stability, the warping end of support 3 is towards the opening end of grouting hole, forms barb, and the stability of grouting nail 1 is significantly improved.

[0028] The outer portion of grouting nail 1 is slidably connected with sleeve 4, and the sleeve body controls the warping state of support 3, so as to facilitate installation, the inner wall of sleeve 4 can press the warping support 3, the through slot 5 for the support 3 to pass through is formed in the sleeve 4, and when the inner wall of sleeve 4 presses support 3, a plurality of support 3 can be folded by sliding sleeve 4, when sleeve 4 is slid to align with through slot 5 and support 3, one end of support 3 can pass through through slot 5 and be warped, and the inner wall of grouting hole is supported.

[0029] Further, the limiting block 6 is fixedly arranged on the outer surface of grouting nail 1, and the limiting block 6 is used for limiting the movement range of sleeve 4. The driving part 7 for driving the movement of sleeve 4 is arranged on the outer surface of sleeve 4, and the anti-slip pattern is arranged on the driving part 7.

[0030] In order to make the through slot 5 on the sleeve 4 be on the same straight line with the support 3 under the action of force, the baffle 9 for stopping the support 3 on both sides is arranged on the inner wall of sleeve 4.

[0031] In order to further improve the anti-slip effect, the rubber ring 8 is arranged on the outer portion of grouting nail 1.

[0032] In summary, the civil engineering structure gap grouting device, when using, before inserting the grouting nail 1 into the grouting hole, the inner wall of the sleeve 4 will naturally extrude and fold the supporting part 3, so that the supporting part 3 adheres to the outer wall of the grouting nail 1 and is in a contracted state, and continuously advances until most of the grouting nail 1 is immersed in the grouting hole, leaving the driving part 7 exposed.

[0033] When the grouting nail 1 is in place at the required depth, the position of the sliding sleeve 4 is adjusted so that the through slot 5 on the sleeve 4 is accurately aligned with the supporting part 3 that is folded on the outer wall of the grouting nail 1. Once aligned, the supporting part 3 that was bound by the inner wall of the sleeve 4 rapidly pops up and springs up from the through slot 5 under its own elastic action, and is tightly supported on the inner wall of the grouting hole, forming a stable support structure.

[0034] The connecting head 10 is connected to the grouting nail 1 that has been fixed, the device parameters are adjusted to appropriate grouting pressure, flow rate, etc., and the prepared slurry is injected into the wall crack through the grouting nail 1 according to the standard process. The grouting process is continuously monitored for pressure changes, slurry injection amount, and surrounding wall conditions to ensure uniform filling of the slurry in the crack. After completing the specified grouting task, the slurry is solidified to the required strength, the grouting equipment and auxiliary parts are removed, and the construction site is cleaned up.

[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A civil engineering structure joint grouting device comprising a grouting nail (1), the inside of the grouting nail (1) is provided with a flow channel (2), characterized in that: The support piece (3) is provided on the outer wall of the grouting nail (1), and has elasticity, and one end of the support piece (3) is in a raised state in normal condition; the sleeve (4) is slidably connected to the outer part of the grouting nail (1), the inner wall of the sleeve (4) can press the raised support piece (3), the sleeve (4) is provided with a through slot (5) for the support piece (3) to pass through, when the sleeve (4) slides to the position where the through slot (5) and the support piece (3) are aligned, one end of the support piece (3) can pass through the through slot (5) and be raised to support the inner wall of the grouting hole.

2. A civil construction engineering structural joint grouting device according to claim 1, characterized in that: The raised end of the support piece (3) faces the opening end of the grouting hole.

3. A civil construction engineering structural joint grouting device according to claim 2, characterized in that: The connecting head (10) is arranged on the injection end of the flow channel (2).

4. A civil construction engineering structural joint grouting device according to claim 1, characterized in that: The limiting block (6) for limiting the movement range of the sleeve (4) is fixedly arranged on the outer surface of the grouting nail (1).

5. A civil engineering construction joint grouting device according to claim 4, wherein: The driving part (7) for driving the movement of the sleeve (4) is arranged on the outer surface of the sleeve (4), and the driving part (7) is provided with anti-skid lines.

6. A civil construction engineering structural joint grouting device according to claim 1, characterized in that: The baffle (9) for stopping the support piece (3) on both sides is arranged on the inner wall of the sleeve (4).

7. A device for grouting gaps in civil engineering structures according to any one of claims 1-6, characterized in that: The rubber ring (8) is arranged on the outer part of the grouting nail (1).

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