CN211817029U

CN211817029U - Building engineering pre-buried exposed steel bar rust prevention device

Info

Publication number: CN211817029U
Application number: CN202020343911.5U
Authority: CN
Inventors: 郑桂平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-10-30
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses a pre-buried reinforcing bar rust preventing device that exposes of building engineering belongs to building engineering technical field. The utility model provides a pre-buried exposing reinforcing bar rust-resistant device of building engineering, including guide pin bushing and pipe, the guide pin bushing rear end inboard is located to pipe front end outside cover, the guide pin bushing front end is equipped with the collet, the cavity has been seted up at the collet middle part, cavity and guide pin bushing inner chamber and pipe inner chamber intercommunication form the reinforcing bar and insert the chamber, guide pin bushing outside cover is equipped with the seal cover, the seal cover front end is equipped with the clamp ring, the clamp ring left and right sides symmetry is equipped with two engaging lugs, be equipped with the screw on the engaging lug, the screw front end with pass the engaging lug. The utility model discloses a be equipped with the collet at the guide pin bushing front end, and be equipped with the seal cover at the guide pin bushing outside cover, utilize the seal cover to move forward to make the seal cover move the open collet of extrusion and press from both sides tight to male reinforcing bar, pour into grease into again in the seal cover, and then utilize grease to carry out the oil blanket to tight reinforcing bar of clamp, avoid its corrosion.

Description

Building engineering pre-buried exposed steel bar rust prevention device

Technical Field

The utility model relates to a building engineering technical field, more specifically say, relate to a pre-buried reinforcing bar rust prevention device that exposes of building engineering.

Background

During the design and construction of a reinforced concrete structure in construction engineering, in order to solve the problems of structural cracking and the like caused by shrinkage deformation in the concrete hardening process, deformation joints and post-cast concrete belts are arranged in the reinforced concrete structure at intervals of a certain length, steel bars are required to be embedded at the joints to ensure the integrity of the concrete structure, the time of exposing the deformation joint embedded steel bars in the air is determined according to the deformation requirement and the construction process of the structural concrete, the deformation joints and the post-cast concrete belts are generally unequal in 30 days to 90 days, some steel bars are even longer, and the steel bars are quickly rusted in the air at intervals of more than one year, and are rusted along with the lengthening of time, the cross sections of the steel bars are weakened, so that after the concrete construction at the joints is caused, the whole structure is processed at the joints to form weak links, and even structural damage accidents are caused, and therefore, an antirust device is urgently. Patent document of publication number CN201920269866.0 provides a pre-buried exposing reinforcing bar rust-resistant device of building engineering, and the device is through being provided with seal cushion, installation base, fixing bolt, first barrel, second barrel, and the reinforcing bar that will leak outward is pegged graft in sealed cushion, and is fixed with the installation base through fixing bolt, though the device beneficial effect is more, still exists following problem: the device is inconvenient to adjust according to the thickness of the exposed steel bar, so that the application range is limited, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide a pre-buried reinforcing bar rust preventing device that exposes of building engineering to solve the problem that proposes in the above-mentioned background art.

2. Technical scheme

The utility model provides a pre-buried exposed reinforcing bar rust-resistant device of building engineering, includes guide pin bushing and pipe, the guide pin bushing rear end inboard is located to the pipe front end outside cover, the guide pin bushing front end is equipped with the collet, the cavity has been seted up at the collet middle part, the cavity forms the reinforcing bar with guide pin bushing inner chamber and pipe inner chamber intercommunication and inserts the chamber, the guide pin bushing outside cover is equipped with the seal cover, the seal cover front end is equipped with the clamp ring, clamp ring left and right sides symmetry is equipped with two engaging lugs, be equipped with the screw on the engaging lug, the screw front end with pass the engaging lug middle part and fixed with outside wall.

Preferably, a limiting ring is arranged at the position, opposite to the rear side of the sealing sleeve, of the outer wall of the rear end of the guide sleeve, a threaded groove is formed in the outer wall of the front end of the guide sleeve, an oil groove A is formed in the threaded groove, and the oil groove A is of a spiral groove structure.

Preferably, the collet is a circular truncated cone structure consisting of a plurality of elastic metal clamping pieces, a gap is reserved between every two adjacent elastic metal clamping pieces, and the size of a tubular structure formed by closing the front ends of the elastic metal clamping pieces is smaller than that of the inner cavity of the guide sleeve.

Preferably, the inner wall of the rear end of the sealing sleeve is provided with a limiting protrusion, the size of the limiting protrusion is smaller than that of the limiting ring, the inner wall of the front end of the sealing sleeve is provided with threads, the threads are in threaded fit with the thread grooves, a round angle is formed in the inner edge of the front end of the sealing sleeve, and the inner side of the round angle is in sliding contact with the outer side of the elastic metal clamping piece.

Preferably, an oil groove B is formed in the thread, the oil groove B is of a spiral groove structure, the spiral direction of the oil groove B is opposite to that of the oil groove a, an oil filling hole is formed in the position, opposite to the rear end of the oil groove B, on the sealing sleeve, and a sealing plug is arranged in the oil filling hole.

Preferably, the front ends of the oil grooves A and B are communicated with the clearance on the collet.

Preferably, a sealing groove is formed in the end face of the front side of the compression ring, a rubber ring is arranged in the sealing groove, the section of the rubber ring is of an L-shaped structure, and the size of the outer edge of the front end of the rubber ring is smaller than that of the outer edge of the front end of the jacket clamp.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a be equipped with the collet at the guide pin bushing front end, and be equipped with the seal cover outside the guide pin bushing, utilize the seal cover to move along the screw thread direction, thereby make the seal cover move the open collet of extrusion, and then make the collet shrink and press from both sides tight to male reinforcing bar, the clamp ring of rethread screw compression seal cover front end, thereby it is fixed with outside wall connection to make the device, pour into sealing grease into in the seal cover at last, and then utilize sealing grease to carry out the oil blanket to pressing from both sides tight reinforcing bar, avoid its corrosion. The utility model discloses structural design is compact reasonable, and the simple installation is sealed good, and rust-resistant loses the performance by force.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic top view of the guide sleeve and the connecting structure thereof in the present invention;

fig. 3 is a schematic bottom view of the middle guide sleeve and the connecting structure thereof;

fig. 4 is a front schematic view of the seal cartridge of the present invention;

fig. 5 is a rear schematic view of the seal cartridge of the present invention with a split structure;

the reference numbers in the figures illustrate: 1. a guide sleeve; 2. a conduit; 3. sleeving and clamping; 301. a cavity; 4. sealing sleeves; 401. a compression ring; 402. connecting lugs; 5. a screw; 101. a limiting ring; 102. a thread groove; 103. an oil groove A; 302. an elastic metal clip; 303. a gap; 403. a limiting bulge; 404. a thread; 405. round corners; 406. a sealing groove; 407. a rubber ring; 408. an oil groove B; 409. an oil filler hole; 410. and (4) sealing the plug.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a pre-buried exposing reinforcing bar rust-resistant device of building engineering, including guide pin bushing 1 and pipe 2, guide pin bushing 1 rear end inboard is located to 2 front end outside covers of pipe, 1 front end of guide pin bushing is equipped with collet 3, collet 3 middle part has seted up cavity 301, cavity 301 forms the reinforcing bar with 1 inner chamber of guide pin bushing and 2 inner chambers of pipe intercommunication and inserts the chamber, 1 outside cover of guide pin bushing is equipped with

seal cover

4, 4 front ends of seal cover are equipped with clamp ring 401, clamp ring 401 left and right sides symmetry is equipped with two engaging lugs 402, be equipped with screw 5 on the

engaging lug

402, 5 front ends of screw with pass engaging lug 402 middle part and fixed with outside wall. The utility model discloses a be equipped with collet 3 at 1 front end of guide pin bushing, and the cover is equipped with seal cover 4 in 1 outside of guide pin bushing, utilize seal cover 4 to move along the screw thread direction, thereby make seal cover 4 move the open collet 3 of extrusion, and then make collet 3 shrink and press from both sides tight to the male reinforcing bar, rethread screw 5 compresses tightly clamp ring 401 of 4 front ends of seal cover, thereby it is fixed with outside wall connection to make the device, pour into grease into in the seal cover 4 at last, and then utilize grease to carry out the oil blanket to the tight reinforcing bar of clamp, avoid its corrosion.

Specifically, a limiting ring 101 is arranged at the position, opposite to the rear side of the sealing sleeve 4, of the outer wall of the rear end of the guide sleeve 1, a thread groove 102 is formed in the outer wall of the front end of the guide sleeve 1, an oil groove A103 is formed in the thread groove 102, and the oil groove A103 is of a spiral groove structure. Through the expanded collet 3 and the spacing ring 101, the sealing sleeve 4 is limited and prevented from sliding out of the guide sleeve 1.

Further, the collet 3 is a circular truncated cone structure composed of a plurality of elastic metal clamping pieces 302, a gap 303 is reserved between two adjacent elastic metal clamping pieces 302, and the size of a tubular structure formed by closing the front ends of the plurality of elastic metal clamping pieces 302 is smaller than that of the inner cavity of the guide sleeve 1. Through being the open round platform body collet 3 of front end for after the reinforcing bar inserted the reinforcing bar and inserts the intracavity, utilize seal cover 4 to move forward and extrude open collet 3, and then make a plurality of elastic metal clamping pieces 302 be close to each other, and clearance 303 reduces gradually, presss from both sides tight reinforcing bar until collet 3.

Still further, the inner wall of the rear end of the sealing sleeve 4 is provided with a limiting protrusion 403, the size of the limiting protrusion 403 is smaller than that of the limiting ring 101, the inner wall of the front end of the sealing sleeve 4 is provided with a thread 404, the thread 404 is in thread fit with the thread groove 102, a round angle 405 is formed on the inner edge of the front end of the sealing sleeve 4, and the inner side of the round angle 405 is in sliding contact with the outer side of the elastic metal clamping piece 302. The rounded corners 405 are designed to reduce damage to the outer walls of the resilient metal clips 302 as the sealing sleeve 4 is moved forward along the threads to compress the plurality of resilient metal clips 302, thereby extending the useful life of the device.

Furthermore, the thread 404 is provided with an oil groove B408, the oil groove B408 is of a spiral groove structure, the spiral direction of the oil groove B408 is opposite to the spiral direction of the oil groove a103, an oil filling hole 409 is provided at a position on the sealing sleeve 4 opposite to the rear end of the oil groove B408, and a sealing plug 410 is arranged in the oil filling hole 409. Oil groove B408 and oil groove a103 are two opposite-spiral thread grooves, and the design is aimed at that two opposite-spiral thread grooves have intersection points, so that grease can flow into oil groove a103 from oil groove B408 during oil injection, and the sealing performance of the oil seal is improved.

It should be noted that the front ends of the oil grooves a103 and B408 are both communicated with the gap 303 of the collet 3. After the front end of the sealing sleeve 4 extrudes the collet 3 to shrink, the rubber ring 407 between the compression ring 401 and the external wall body is pressed and attached to the collet 3, so that the purpose that the rubber ring 407 seals the reinforcing steel bar insertion cavity is achieved, and after oil injection, the grease fills the gap 303 in the collet 3, so that a further sealing effect is achieved.

In addition, a sealing groove 406 is formed in the end face of the front side of the compression ring 401, a rubber ring 407 is arranged in the sealing groove 406, the cross section of the rubber ring 407 is of an L-shaped structure, and the size of the outer edge of the front end of the rubber ring 407 is smaller than that of the outer edge of the front end of the collet 3. The rear end of the rubber ring 407 is embedded into the sealing groove 406, and the front end of the rubber ring 407 is attached to the front wall of the compression ring 401 and the outer wall, so that the rubber ring 407 can seal the contracted collet 3.

The working principle is as follows: when the device is installed on a steel bar, the device is inserted into a cavity along the steel bar, the device is sleeved outside the steel bar, the sealing sleeve 4 is rotated, the sealing sleeve 4 moves forwards along the direction of the thread groove 102, at the moment, the fillet 405 of the inner edge of the front end of the sealing sleeve 4 is continuously extruded on the sealing sleeve 4 after contacting with the outer walls of the plurality of elastic metal clamping pieces 302, the plurality of elastic metal clamping pieces 302 are pushed to shrink, at the moment, the gaps 303 between the plurality of elastic metal clamping pieces 302 are reduced, the sleeve clamp 3 in a cone structure is gradually shrunk at the front end until the sleeve clamp 3 clamps the exposed steel bar, meanwhile, the rubber ring 407 between the compression ring 401 and the external wall is stressed to be attached to the outer wall of the sleeve clamp 3, the outer side of the sleeve clamp 3 is sealed, then the device is connected and fixed with the external wall through the screw 5, finally, the sealing plug 410 on the sealing sleeve 4 is pulled out, so that the sealing grease flows to the direction of the steel bar along the oil groove B408, and when the sealing grease passes through the intersection point of the oil groove B408 and the oil groove A103, the sealing grease flows to the oil groove B408 and the oil groove A103 until the sealing grease flows out from the gap 303 and fills the gap in the collet 3.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pre-buried rust-resistant device of reinforcing bar that exposes of building engineering, includes guide pin bushing (1) and pipe (2), its characterized in that: the guide sleeve (1) rear end is inboard located to pipe (2) front end outside cover, the guide sleeve (1) front end is equipped with collet (3), cavity (301) have been seted up at collet (3) middle part, cavity (301) and guide sleeve (1) inner chamber and pipe (2) inner chamber intercommunication form the reinforcing bar and insert the chamber, guide sleeve (1) outside cover is equipped with seal cover (4), seal cover (4) front end is equipped with clamp ring (401), clamp ring (401) left and right sides symmetry is equipped with two engaging lugs (402), be equipped with screw (5) on engaging lug (402), screw (5) front end with pass engaging lug (402) middle part and be connected fixedly with outside wall.

2. The embedded exposed steel bar rust prevention device for the building engineering as claimed in claim 1, which is characterized in that: the position of the outer wall of the rear end of the guide sleeve (1) relative to the rear side of the sealing sleeve (4) is provided with a limiting ring (101), the outer wall of the front end of the guide sleeve (1) is provided with a thread groove (102), the thread groove (102) is provided with an oil groove A (103), and the oil groove A (103) is of a spiral groove structure.

3. The embedded exposed steel bar rust prevention device for the building engineering as claimed in claim 1, which is characterized in that: the round table body structure that cover clamp (3) are constituteed by a plurality of elastic metal clamping piece (302), adjacent two reserve between elastic metal clamping piece (302) has clearance (303), and is a plurality of the tubular structure size that elastic metal clamping piece (302) front end closure formed is less than the size of guide pin bushing (1) inner chamber.

4. The embedded exposed steel bar rust prevention device for the building engineering as claimed in claim 1, which is characterized in that: the inner wall of the rear end of the sealing sleeve (4) is provided with a limiting protrusion (403), the size of the limiting protrusion (403) is smaller than that of the limiting ring (101), the inner wall of the front end of the sealing sleeve (4) is provided with a thread (404), the thread (404) is in threaded fit with the thread groove (102), a round angle (405) is formed in the inner edge of the front end of the sealing sleeve (4), and the inner side of the round angle (405) is in sliding contact with the outer side of the elastic metal clamping piece (302).

5. The embedded exposed steel bar rust prevention device for the building engineering according to claim 4, which is characterized in that: seted up oil groove B (408) on screw thread (404), oil groove B (408) are the helicla flute structure, just the spiral direction of oil groove B (408) is opposite with the spiral direction of oil groove A (103), and oil filler point (409) have been seted up to the position of relative oil groove B (408) rear end on seal cover (4), be equipped with sealing plug (410) in oil filler point (409).

6. The embedded exposed steel bar rust prevention device for the building engineering according to claim 5, which is characterized in that: the front ends of the oil grooves A (103) and the oil grooves B (408) are communicated with the gap (303) on the collet (3).

7. The embedded exposed steel bar rust prevention device for the building engineering as claimed in claim 1, which is characterized in that: a sealing groove (406) is formed in the end face of the front side of the compression ring (401), a rubber ring (407) is arranged in the sealing groove (406), the cross section of the rubber ring (407) is of an L-shaped structure, and the size of the outer edge of the front end of the rubber ring (407) is smaller than that of the outer edge of the front end of the jacket clamp (3).