Self-plugging steel bar grouting sleeve

Abstract

The utility model relates to the field of building construction, and discloses a self-plugging reinforcing steel bar grouting sleeve which comprises a plugging assembly, a fixing cylinder, a plugging disc coaxially and fixedly connected to the inner surface of the fixing cylinder, a plurality of plugging blocks in sliding connection with the surface of the plugging disc, and an extrusion disc in sliding connection with the inner surface of the fixing cylinder. The containing assembly comprises a sleeve part, positioning plugs in threaded connection with the two ends of the sleeve part, a grouting pipe and a slurry discharging pipe, wherein the grouting pipe and the slurry discharging pipe are fixedly connected with the sleeve wall of the sleeve part. According to the self-plugging reinforcing steel bar grouting sleeve, the plugging assembly is installed on the slurry discharging pipe in the containing assembly, so that the whole self-plugging reinforcing steel bar grouting sleeve can automatically seal the slurry discharging pipe after being filled with mortar, waste caused by excessive mortar flowing out is avoided, and meanwhile the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a self-sealing steel bar grouting sleeve. Background Art

[0002] A rebar grouting sleeve is a prefabricated component used for connecting rebar and is widely used in prefabricated buildings and bridge construction. It is primarily used to anchor and extend rebar, improving the structure's seismic performance and construction efficiency. A grouting sleeve consists of a specially processed sleeve, a matching grouting material, and rebar. During the connection, a fast-setting, non-shrinkage grouting material is injected, creating a bond between the rebar and the sleeve. The sleeve has two holes on its side. During construction, the lower hole is generally used as the grouting inlet, and the upper hole as the grouting outlet. During grouting, high-strength, slightly expanding polymer mortar is pressure-injected through a grouting pipe in the side wall. The mortar fills the gaps between the pipe wall and the rebar and flows out through the grouting pipe. Grouting sleeve connection technology is a new type of steel structure connection method, developed due to engineering needs and technological developments. This connection method addresses the shortcomings of traditional steel structure connection methods (primarily welding and bolting) and has rapidly developed and been adopted.

[0003] When using traditional steel grouting sleeves, after the injected mortar fills the inside of the sleeve, it will flow out from the grouting pipe. At this time, wooden plugs need to be hammered into the grouting pipes one by one by manpower to block them. However, since most steel grouting sleeves are used in groups, multiple grouting pipes discharge mortar at the same time. The staff cannot block them in time, resulting in unnecessary waste of mortar, and the operation is time-consuming and labor-intensive.

[0004] Therefore, in order to solve the problems of unnecessary mortar waste and time-consuming and labor-intensive operations caused by untimely sealing, we proposed a self-sealing steel bar grouting sleeve that can automatically close the grouting pipe after it is filled with mortar, preventing excess mortar from flowing out and saving labor costs. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] In view of the problems existing in the above-mentioned prior art, the present utility model is proposed.

[0007] Therefore, the technical problem to be solved by the present invention is to provide a self-sealing steel bar grouting sleeve, which can solve the problems of unnecessary mortar waste and time-consuming and labor-intensive operation caused by untimely sealing in existing devices.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: a self-sealing steel bar grouting sleeve, comprising a sealing assembly, including a fixed tube, a sealing disk coaxially fixedly connected to the inner surface of the fixed tube, a plurality of sealing blocks slidably connected to the surface of the sealing disk, and an extrusion disk slidably connected to the inner surface of the fixed tube;

[0009] The accommodating component is threadedly connected to the sealing component, and includes a sleeve member, a positioning plug threadedly connected to the two ends of the sleeve member, and a grouting pipe and a grouting pipe fixedly connected to the wall of the sleeve member.

[0010] As a preferred solution of the self-sealing steel bar grouting sleeve described in the utility model, the extrusion plate fits the inner surface of the fixed tube, and the extrusion plate is fixedly connected to a plurality of wedge-shaped extrusion blocks close to the end face of the sealing plate, a first inclined surface is provided on the surface of the wedge-shaped extrusion block, a plurality of circular grooves are provided on the surface of the extrusion plate, and a plurality of exhaust holes are arranged in a circumferential array on the extrusion plate, and the other end face away from the sealing plate is fixedly connected to a fixing piece, and a fixing groove is provided on the surface of the fixing piece.

[0011] As a preferred solution of the self-sealing steel bar grouting sleeve described in the utility model, an external through hole is opened at the center position of the sealing disk, and the surface of the sealing disk located inside the fixed cylinder is fixedly connected to a plurality of sliding columns corresponding to the circular sliding grooves, and the end of the sliding column away from the sealing disk is fixedly connected to the enlargement column, and a plurality of sliding grooves corresponding to the sealing block are also provided on the sealing disk.

[0012] As a preferred solution of the self-sealing steel bar grouting sleeve described in the utility model, the surface of the sealing block in contact with the sealing disk is fixedly connected to a protrusion, the surface of the protrusion is fixedly connected to a first elastic member, the other end of the first elastic member is fixedly connected to the inner wall of the sliding groove, and a second inclined surface is provided on the surface of the sealing block.

[0013] As a preferred solution of the self-sealing steel bar grouting sleeve described in the utility model, wherein: a first thread is provided on the inner surface of the fixed tube near the end portion in contact with the grouting pipe and the grouting pipe, a pressure piece is provided on the inner surface of the fixed tube, and the pressure piece includes a rectangular sliding frame fixedly connected to the inner surface of the fixed tube, a second elastic piece located inside the rectangular sliding frame and fixedly connected to the inner surface of the fixed tube at one end, and a pressure plate fixedly connected to the other end of the second elastic piece, a stopping block is fixedly connected to the surface of the pressure plate, the stopping block slides in cooperation with the stopping groove, and the pressure plate is slidably connected to the rectangular sliding frame.

[0014] As a preferred solution of the self-sealing steel bar grouting sleeve of the utility model, wherein: a rectangular slide groove is provided on the pressure plate, and the rectangular slide groove is slidably connected to the rectangular slide frame.

[0015] As a preferred solution of the self-sealing steel bar grouting sleeve of the utility model, the outer surface of the grouting pipe away from the sleeve is provided with a second thread that cooperates with the first thread, and the outer surface of the grouting pipe away from the sleeve is provided with a third thread that cooperates with the first thread.

[0016] As a preferred solution of the self-sealing steel bar grouting sleeve described in the utility model, the inner wall of the sleeve is fixedly connected to the positioning plate, the sleeve is provided with spiral grooves along the inner wall, and the fourth thread is provided at the contact part of the inner wall of the sleeve near the two ends with the positioning plug.

[0017] As a preferred solution of the self-sealing steel bar grouting sleeve described in the utility model, the positioning plug is provided with a positioning groove in the middle along the column diameter direction, the outer wall of the positioning plug is sequentially provided with a fifth thread and vertical ridges in a circular array, the fifth thread is threadedly matched with the fourth thread, and the positioning plug is made of soft material.

[0018] As a preferred solution of the self-sealing steel bar grouting sleeve of the utility model, the outer wall of the sleeve is provided with a grouting port and a grouting port, and the diameters of the grouting port and the grouting port are the same as the inner diameters of the grouting pipe and the grouting pipe.

[0019] The beneficial effects of the present invention are as follows: the present invention installs the plugging component on the grouting pipe in the accommodating component, so that the entire self-sealing steel bar grouting sleeve can automatically close the grouting pipe after being filled with mortar, avoiding waste caused by excess mortar flowing out and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0021] Figure 1 This is an overall schematic diagram of a self-sealing steel bar grouting sleeve according to an embodiment of the present invention;

[0022] Figure 2 An exploded view of a self-sealing steel bar grouting sleeve according to an embodiment of the present invention;

[0023] Figure 3A cross-sectional perspective view of a self-sealing steel bar grouting sleeve according to an embodiment of the present invention;

[0024] Figure 4 This is an overall schematic diagram of a plugging assembly of a self-sealing steel bar grouting sleeve according to an embodiment of the present invention;

[0025] Figure 5 This is a vertical view of the sealing component of the self-sealing steel bar grouting sleeve according to an embodiment of the present utility model.

[0026] Figure 6 This is a cross-sectional view taken along line AA of a plugging assembly of a self-plugging steel bar grouting sleeve according to an embodiment of the present invention;

[0027] Figure 7 A cross-sectional view of the sealing component BB of the self-sealing steel bar grouting sleeve according to an embodiment of the present invention; DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0031] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1

[0033] Reference Figure 1-7, which is the first embodiment of the utility model, provides a self-sealing steel bar grouting sleeve. By installing the sealing component on the grouting pipe in the accommodating component, the entire self-sealing steel bar grouting sleeve can automatically close the grouting pipe after being filled with mortar, thereby avoiding waste caused by excess mortar outflow and saving labor costs. It includes

[0034] The plugging component 100 and the containing component 200 are configured such that the plugging component 100 is installed on the containing component 200 so that the containing component 200 is filled with slurry and then the plugging component 100 promptly seals the containing component 200, thereby preventing the internal slurry from overflowing and avoiding slurry waste.

[0035] Furthermore, the housing assembly 200 includes a sleeve member 201, positioning plugs 202 threadedly connected to the ends of the sleeve member 201, and a grouting pipe 203 and a grouting pipe 204 fixedly connected to the wall of the sleeve member 201. The sleeve member 201 is a cylindrical object with open ends, serving as the main component of the entire self-sealing steel bar grouting sleeve. Two steel bars are inserted into the sleeve member 201 through the holes at the two ends of the sleeve member 201, and then high-strength micro-expansion polymer mortar is poured into the sleeve member 201. After the mortar hardens, the two steel bars, the mortar, and the sleeve member 201 adhere to form a single unit, thereby connecting the steel bars. Since mortar needs to be injected between the sleeve member 201 and the steel bar, the diameter of the sleeve member 201 is larger than the diameter of the steel bar. The positioning plugs 202 threadedly connected at both ends of the sleeve member 201 can fix the steel bar in the center position inside the sleeve member 201. Since the positioning plugs 202 are made of soft material, they can also block the gap between the end of the sleeve member 201 and the steel bar, preventing the inflow of external mortar and the seepage of internal mortar from the end of the sleeve member 201. The sleeve member 201 has a wall fixedly connected to it with a grouting pipe 203 and a grouting pipe 204. The grouting pipe 203 and the grouting pipe 204 are exactly the same in size, length and diameter. They are arranged up and down along the axis of the sleeve member 201 near the two ends of the sleeve member 201. The sleeve member 201 is placed vertically, with the grouting pipe 203 at the lower end and the grouting pipe at the upper end. The sleeve member 201 is internally connected to the grouting pipe 203 and the grouting pipe 204, that is, the mortar enters the sleeve member 201 from the grouting pipe 203, spreads vertically upward, fills the sleeve member 201 and then flows out from the grouting pipe 204.

[0036] Furthermore, the plugging assembly 100 includes a fixed tube 101, which is a cylindrical structure with two ends transparent. Its inner diameter is equal to the outer diameter of the grouting pipe 203 and the grouting pipe 204 in the receiving assembly 200. The fixed tube 101 and the grouting pipe 203, as well as the fixed tube 101 and the grouting pipe 204, are all threaded and detachable. A blocking disk 103 is fixedly connected to the side of the fixed tube 101 away from the receiving assembly 200. The outer diameter of the blocking disk 103 is the same as the inner diameter of the fixed tube 101, and it fits completely with the inner wall of the fixed tube 101 without any gap. The blocking disk 103 is a disk-shaped object with a central opening. A plurality of blocking blocks 104 are slidably connected to the surface of the blocking disk 103. The blocking blocks 104 can seal the opening of the blocking disk 103, and the blocking blocks 104 are in a warning color. The opening of the blocking disk 103 can be used to observe whether the blocking blocks 104 are completely closed, thereby judging whether to continue grouting. At the same time, the side of the fixed cylinder 101 near the accommodating component 200 is slidably connected to the extrusion disk 102 . The extrusion disk 102 is also a disk-shaped object with the same inner diameter as the fixed cylinder 101 and is extruded and matched with the blocking block 104 .

[0037] That is, the entire blocking process is as follows: the mortar enters the interior of the sleeve 201 from the lower grouting pipe 203, spreads upward, and gradually fills the gap between the steel bar and the sleeve 201, so that the mortar, the sleeve 201, and the steel bars inserted from both ends of the sleeve 201 become a whole. When the internal mortar reaches the plane of the grouting pipe 204, the continuously poured mortar flows into the grouting pipe 204, pushing the extrusion plate 102 to move in a direction away from the sleeve 201, thereby squeezing the blocking block 104. After being squeezed, the blocking block 104 moves centripetally, thereby blocking the opening on the blocking plate 103, achieving the effect of sealing the entire blocking assembly 100, that is, the grouting is completed. At this time, blocking the grouting pipe 203 can complete the entire grouting operation in the containing assembly 200.

[0038] Similarly, when only a single set of steel bar connections are required, only the lower grouting pipe 203 needs to be manually sealed; when faced with complex operations that require multiple sets of steel bars to be connected synchronously to form a connection, only the lower grouting pipe 203 of one set needs to be opened, and the sealing component 100 connected to the lower grouting pipe 203 of the remaining set will automatically seal after entering the mortar, and then repeat the above steps, and the sealing component 100 connected to the upper grouting pipe 204 will automatically seal after entering the mortar. Finally, after the overall grouting is completed, only the grouting pipe 203 being grouted needs to be manually sealed, avoiding the waste of mortar caused by the simultaneous grouting of multiple sets of grouting pipes 204 and the inability to seal them at the same time, greatly reducing the intensity of manual work and saving mortar.

[0039] Example 2

[0040] Reference Figure 1-7, which is the second embodiment of the present utility model, is based on the previous embodiment, and is different from the previous embodiment in that: a plurality of wedge-shaped extrusion blocks 102a are fixedly connected to the end face of the extrusion disk 102 close to the blocking disk 103, and a first inclined surface 102a-1 is provided on the surface of the wedge-shaped extrusion block 102a for extruding the blocking block 104. A plurality of circular grooves 102b and exhaust holes 102c are also provided on the extrusion disk 102; correspondingly, a plurality of sliding columns 103b are fixedly connected to the blocking disk 103, and the ends of the sliding columns 103b are fixedly connected to the enlarged columns 103b-1, and an external through hole 103a is provided at the center of the blocking disk 103; the diameter of the sliding column 103b is the same as the aperture of the circular groove 102b, and the sliding column 103b passes through the circular groove 102b on the extrusion disk 102, so that the extrusion disk 102 is slidably connected to the sliding column 103b, and the diameter of the enlarged column 103b-1 is larger than the aperture of the circular groove 102b, so that the extrusion disk 102 is limited to slide parallel to the sliding column 103b and cannot fall out.

[0041] Furthermore, a sliding groove 103c corresponding to the blocking block 104 is provided on the blocking disk 103. Correspondingly, the surface of the blocking block 104 is fixedly connected to the protrusion 104a, the surface of the protrusion 104a is fixedly connected to the first elastic member 104b, and the other end of the first elastic member 104b is fixedly connected to the inner wall of the sliding groove 103c, that is, the blocking block 104 is slidably connected to the sliding groove 103c through the protrusion 104a, and is restricted by the first elastic member 104b so that when the blocking block 104 is not squeezed, it is restricted by the first elastic member 104b so that it does not block the external through hole 103a. A second inclined surface 104c is also provided on the surface of the blocking block 104. The second inclined surface 104c and the first inclined surface 102a-1 are squeezed and matched with each other. The first inclined surface 102a-1 moves forward and parallel to squeeze the second inclined surface 104c on the blocking block 104, so that the blocking block 104 slides centripetally along the sliding groove 103c on the blocking disk 103, blocking the external through hole 103a, thereby realizing automatic sealing of the slurry discharge pipe 204.

[0042] Furthermore, to ensure smooth operation of the entire device, it is necessary to expel the air inside the sleeve 201 while grouting. After the air is expelled as much as possible, the mortar is filled into the sleeve 201. To achieve this purpose, a locking member 102d is fixedly connected to the other end of the extrusion disk 102 away from the blocking disk 103. The surface of the locking member 102d is provided with a locking groove 102d-1. The function of the locking member 102d is to limit the position of the extrusion disk 102. A pressure piece 101b is provided on the inner surface of the fixed cylinder 101, and the pressure piece 101b includes a rectangular sliding frame 101b-1 fixedly connected to the inner surface of the fixed cylinder 101, a second elastic piece 101b-2 located inside the rectangular sliding frame 101b-1 and fixedly connected to the inner surface of the fixed cylinder 101 at one end, and a pressure plate 101b-3 fixedly connected to the other end of the second elastic piece 101b-2. A stopping block 101b-4 is fixedly connected to the surface of the pressure plate 101b-3, and the stopping block 101b-4 slides in cooperation with the stopping groove 102d-1. At the same time, a rectangular sliding groove 101b-5 is provided on the pressure plate 101b-3, and the inner groove diameter of the rectangular sliding groove 101b-5 matches the outer diameter of the rectangular sliding frame 101b-1, which can ensure that the pressure plate 101b-3 can slide up and down on the rectangular sliding frame 101b-1. That is, the pressure plate 101b-3 and the rectangular sliding frame 101b-1 cooperate to form a plate body that can slide up and down. The two are fixedly connected by the second elastic member 101b-2. The second elastic member 101b-2 ensures that the two maintain partial overlap when no external force is applied, so that the pressure plate 101b-3 will not fall out of the rectangular sliding frame 101b-1. It should be noted that when the blocking assembly 100 and the containing assembly 200 are tightly connected, the sleeve member 201 is placed vertically, and the top surface of the pressure plate 101b-3 remains parallel to the end surface of the sleeve member 201. At this time, the exhaust hole 102c is located at the upper end of the extrusion disk 102 near the sleeve member 201.

[0043] Specifically, when no pressure acts on the pressure plate 101b-3, the locking block 101b-4 fixedly connected to the surface of the pressure plate 101b-3 is stuck in the locking groove 102d-1 on the extrusion plate 102. The extrusion plate 102 is limited by the locking block 101b-4 and cannot move horizontally along the sliding column 103b away from the sleeve 201, and will not squeeze the blocking block 104, so that the outer through hole 103a remains open. When slurry is poured into the grouting pipe 203, the air inside the sleeve 201 flows into the slurry discharge pipe 204, passes through the exhaust hole 102c near the upper position on the extrusion plate 102 in the slurry discharge pipe 204, and is discharged through the outer through hole 103a. When the internal mortar gradually overflows and enters the slurry discharge pipe 204 and is about to flow into the exhaust hole 102c, the pressure plate 101b-3, which has been pressed down by the gravity of the mortar in the slurry discharge pipe 204, breaks through the critical value, and the stopping block 101b-4 completely disengages from the stopping groove 102d-1, losing the limit on the extrusion plate 102. The extrusion plate 102 moves horizontally away from the sleeve part 201 under the push of the internal mortar, thereby achieving the blocking of the slurry discharge pipe 204.

[0044] Example 3

[0045] Reference Figure 1-7 , which is the third embodiment of the present utility model, and provides a self-sealing steel bar grouting sleeve. This embodiment is based on the previous embodiment, and differs from the previous embodiment in that the sealing component 100 and the containing component 200 are detachably connected by threads. A first thread 101a is provided on the inner surface of the fixing tube 101 near the end portion in contact with the grouting pipe 203 and the grouting pipe 204. The outer surface of the corresponding grouting pipe 203 away from the sleeve member 201 is provided with a second thread 203a that cooperates with the first thread 101a, and the outer surface of the grouting pipe 204 away from the sleeve member 201 is provided with a third thread 204a that cooperates with the first thread 101a. When the first thread 101a is tightly matched with the second thread 203a and the third thread 204a, the top surface of the pressure plate 101b-3 remains parallel to the end surface of the sleeve member 201. A grouting port 201d and a grouting port 201e are provided on the outer wall of the sleeve 201. The diameters of the grouting port 201d and the grouting port 201e are the same as the inner diameters of the grouting pipe 203 and the grouting pipe 204. The sleeve 201 and the grouting pipe 203 and the grouting pipe 204 are connected through the grouting port 201d and the grouting port 201e, so that the slurry can flow smoothly inside.

[0046] Furthermore, the inner wall of the sleeve member 201 is fixedly connected to a positioning plate 201a. The positioning plate 201a allows the mortar to pass smoothly while providing vertical positioning for the steel bars at both ends, thereby preventing the lengths of the steel bars at both ends from being too uneven when extending into the interior of the sleeve member 201, thereby resulting in an insufficiently secure connection of the steel bars. The sleeve member 201 is also provided with spiral ridges 201b along the inner wall. The steel bars can complete the transfer of stress to the steel bars through the friction between the axial force and the spiral ridges 201b on the inner wall of the sleeve member 201. In addition, a fourth thread 201c is provided near the contact portion of the inner wall of the sleeve member 201 near the two ends with the positioning plug 202. The sleeve member 201 is threadably connected to the positioning plug 202 via the fourth thread 201c. The positioning plug 202 is made of soft material and has a positioning groove 202a in the middle along the column diameter direction. The outer wall is sequentially provided with a fifth thread 202b and vertical ridges 202c in a circumferential array. After inserting the steel bar into the positioning groove 202a, the positioning plug 202 is rotated so that it is threadedly connected to the sleeve member 201 through the fourth thread 201c and the fifth thread 202b, and is continuously tightened. The vertical ridges 202c provide the user with greater friction, making operation easier.

[0047] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0048] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0049] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A self-sealing steel bar grouting sleeve, characterized by: include, A blocking assembly (100) comprises a fixed cylinder (101), a blocking disk (103) coaxially fixedly connected to the inner surface of the fixed cylinder (101), a plurality of blocking blocks (104) slidably connected to the surface of the blocking disk (103), and an extrusion disk (102) slidably connected to the inner surface of the fixed cylinder (101); A accommodating assembly (200) is threadedly connected to the blocking assembly (100), comprising a sleeve member (201), a positioning plug (202) threadedly connected to both ends of the sleeve member (201), and a grouting pipe (203) and a grouting pipe (204) fixedly connected to the wall of the sleeve member (201).

2. The self-sealing steel bar grouting sleeve according to claim 1, characterized in that: The extrusion disk (102) fits the inner surface of the fixed cylinder (101), and the extrusion disk (102) is fixedly connected to a plurality of wedge-shaped extrusion blocks (102a) near the end face of the blocking disk (103), a first inclined surface (102a-1) is provided on the surface of the wedge-shaped extrusion block (102a), a plurality of circular sliding grooves (102b) are provided on the surface of the extrusion disk (102), and a plurality of exhaust holes (102c) are arranged in a circumferential array on the extrusion disk (102), and a locking member (102d) is fixedly connected to the other end face away from the blocking disk (103), and a locking groove (102d-1) is provided on the surface of the locking member (102d).

3. The self-sealing steel bar grouting sleeve according to claim 2, characterized in that: An external through hole (103a) is provided at the center of the blocking disk (103), and a plurality of sliding columns (103b) corresponding to the circular sliding grooves (102b) are fixedly connected to the surface of the blocking disk (103) located inside the fixed cylinder (101), and the end of the sliding column (103b) away from the blocking disk (103) is fixedly connected to the enlargement column (103b-1), and a plurality of sliding grooves (103c) corresponding to the blocking block (104) are also provided on the blocking disk (103).

4. The self-sealing steel bar grouting sleeve according to claim 3, characterized in that: The surface of the blocking block (104) in contact with the blocking disk (103) is fixedly connected to a protrusion (104a), the surface of the protrusion (104a) is fixedly connected to a first elastic member (104b), the other end of the first elastic member (104b) is fixedly connected to the inner wall of the sliding groove (103c), and a second inclined surface (104c) is provided on the surface of the blocking block (104).

5. The self-sealing steel bar grouting sleeve according to claim 4, characterized in that: A first thread (101a) is provided on the inner surface of the fixing cylinder (101) near the end portion thereof in contact with the grouting pipe (203) and the grouting pipe (204), and a pressure piece (101b) is provided on the inner surface of the fixing cylinder (101). The pressure piece (101b) comprises a rectangular sliding frame (101b-1) fixedly connected to the inner surface of the fixing cylinder (101), a rectangular sliding frame (101b-1) located inside the rectangular sliding frame (101b-1) and having one end in contact with the fixing cylinder (101). ) is fixedly connected to the inner surface of a second elastic member (101b-2) and a pressure plate (101b-3) fixedly connected to the other end of the second elastic member (101b-2), the surface of the pressure plate (101b-3) is fixedly connected to a stop block (101b-4), the stop block (101b-4) is slidably engaged with the stop groove (102d-1), and the pressure plate (101b-3) is slidably connected to the rectangular sliding frame (101b-1).

6. The self-sealing steel bar grouting sleeve according to claim 5, characterized in that: A rectangular sliding groove (101b-5) is provided on the pressure plate (101b-3), and the rectangular sliding groove (101b-5) is slidably connected to the rectangular sliding frame (101b-1).

7. The self-sealing steel bar grouting sleeve according to claim 6, characterized in that: The outer surface of the grouting pipe (203) away from the sleeve (201) is provided with a second thread (203a) that cooperates with the first thread (101a), and the outer surface of the grouting pipe (204) away from the sleeve (201) is provided with a third thread (204a) that cooperates with the first thread (101a).

8. The self-sealing steel bar grouting sleeve according to claim 1 or 7, characterized in that: The inner wall of the sleeve member (201) is fixedly connected to the positioning plate (201a), and the sleeve member (201) is provided with a spiral ridge groove (201b) along the inner wall. The inner wall of the sleeve member (201) near the two ends in contact with the positioning plug (202) is provided with a fourth thread (201c).

9. The self-sealing steel bar grouting sleeve according to claim 8, characterized in that: The positioning plug (202) is provided with a positioning through groove (202a) in the middle along the column diameter direction, and the outer wall of the positioning plug (202) is sequentially provided with a fifth thread (202b) and a circumferential array of vertical ridges (202c), the fifth thread (202b) is threadably matched with the fourth thread (201c), and the positioning plug (202) is made of a soft material.

10. The self-sealing steel bar grouting sleeve according to claim 9, characterized in that: The outer wall of the sleeve member (201) is provided with a grouting port (201d) and a grouting port (201e), and the diameters of the grouting port (201d) and the grouting port (201e) are the same as the inner diameters of the grouting pipe (203) and the grouting pipe (204).

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