Horizontal circumferential steel bar connecting device for reinforced concrete circular open caisson

Abstract

The utility model discloses a horizontal circumferential steel bar connecting device for a reinforced concrete circular open caisson. The horizontal circumferential steel bar connecting device comprises a connecting arm, a limiting part and two sleeves, one end, close to the other sleeve, of at least one sleeve is provided with a limiting channel communicated with an inner cavity of the sleeve, and each sleeve is internally provided with a locking piece so as to be locked on the circumferential reinforcing steel bar when moving to a preset position relative to the circumferential reinforcing steel bar; two ends of the connecting arm are respectively connected to the two sleeves, and at least one end of the connecting arm extends into the sleeves from the limiting channel; the limiting part is installed at the end, extending into the sleeve from the limiting channel, of the connecting arm and used for limiting the connecting arm to be separated from the limiting channel, and the position of the limiting part in the axial direction of the connecting arm is adjustable. According to the scheme, the length error of the circumferential reinforcing steel bar can be flexibly compensated while the two ends of the circumferential reinforcing steel bar are stably connected, practicability is good, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of annular steel bar connection structures, in particular to a horizontal annular steel bar connection device for a reinforced concrete circular caisson. Background Art

[0002] In order to improve the strength, a caisson-type vertical shaft is generally equipped with a steel cage structure. For example, patent CN 216999809 U discloses a steel cage structure for improving the working performance of plain concrete of the caisson bottom seal. The steel cage structure is sunk in the caisson. When the steel cage structure sinks to the bottom of the caisson, the guide hook of the steel cage connecting groove is hooked with the steel cage structure, and the guide hook of the steel cage connecting groove is tied to the steel cage structure, thereby realizing the positioning and fixation of the steel cage structure.

[0003] During the manufacturing process of the annular steel bars of the steel cage, the conventional connection method is to weld the two ends of the steel bars together. However, the welding quality of the steel bars is usually difficult to guarantee, the welding workload is large, and an electric welding machine is required. The construction cost is high and the operation is relatively cumbersome. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and propose a horizontal annular steel bar connection device for a reinforced concrete circular caisson, so as to solve the technical problems in the prior art that the two ends of the annular steel bars are welded together during the production process, the steel bar welding quality is usually difficult to ensure, an electric welding machine is required, the welding workload is large, the construction cost is high, and the operation is relatively cumbersome.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a horizontal annular steel bar connection device for a reinforced concrete circular caisson, comprising:

[0007] Two sleeves, at least one of the sleeves is provided with a limiting passage connected to its inner cavity near one end of the other sleeve, and each sleeve is provided with a locking piece so as to be locked to the annular steel bar when the sleeve moves to a preset position relative to the annular steel bar;

[0008] A connecting arm, two ends of which are respectively connected to the two sleeves, and at least one end of which extends from the limiting passage into the sleeve; and

[0009] The limiting portion is installed at the end of the connecting arm extending from the limiting channel into the sleeve, and is used to limit the connecting arm from being separated from the limiting channel, and its position in the axial direction of the connecting arm is adjustable.

[0010] In some embodiments, one end of the connecting arm extending from the limiting channel into the sleeve is provided with an external thread to form a threaded end, and the limiting portion is a limiting nut, and the limiting nut is screwed onto the threaded end.

[0011] In some embodiments, each sleeve is provided with a limiting channel at one end close to another sleeve, and the connecting arm is a connecting screw, and the two ends of the connecting screw extend from the two limiting channels into the two sleeves respectively;

[0012] There are two limit nuts, which are respectively screwed on the two ends of the connecting screw.

[0013] In some embodiments, the outer diameter of the limiting nut is larger than the inner diameter of the limiting channel, and the outer diameter of the connecting arm is smaller than the inner diameter of the limiting channel.

[0014] In some embodiments, the side wall of the sleeve is provided with an escape opening connected to the inner cavity thereof, and the escape opening is directly opposite to the end of the connecting arm extending from the limiting channel into the sleeve.

[0015] In some embodiments, the outer side wall of the sleeve is provided with a receiving groove connected to the avoidance opening, and two opposite side walls of the receiving groove are provided with sliding grooves, and the sliding grooves extend to a side wall of the avoidance opening away from the receiving groove;

[0016] A clamping groove is provided on the side wall of the avoidance opening away from the storage groove, and the horizontal annular steel bar connection device of the reinforced concrete circular caisson also includes a sliding cover, the sliding cover is provided with a sliding rail corresponding to the sliding groove, and a clamping protrusion is provided corresponding to the clamping groove, the sliding rail is slidably arranged in the sliding groove, and the clamping protrusion can be clamped in the clamping groove when the sliding cover slides close to the clamping groove.

[0017] In some embodiments, the locking member is an internal thread provided on the inner wall of the sleeve, and when the sleeve rotates around its own axis relative to the annular steel bar, the internal thread can cooperate with the external thread provided on the end of the annular steel bar to screw the sleeve onto the annular steel bar.

[0018] In some embodiments, the inner cavity of the sleeve is provided with a locking section and an avoidance section along the direction close to the other sleeve, the inner wall of the locking section is provided with the internal thread, and its inner diameter is smaller than the inner diameter of the avoidance section;

[0019] One end of the connecting arm extending from the limiting passage into the sleeve is located in the avoidance section.

[0020] In some embodiments, the outer side wall of the sleeve is provided with a plurality of anti-slip grooves spaced apart along its circumference, and each of the anti-slip grooves extends along the axial direction of the sleeve.

[0021] In some embodiments, a sealing ring is provided around the inner wall of the limiting channel.

[0022] Compared with the prior art, the horizontal annular steel bar connection device for reinforced concrete circular caisson provided by the utility model can realize stable connection of the two ends of the annular steel bar through the connecting arm and the two sleeves; at the same time, when connecting the two ends of the annular steel bar, the position of the limit part in the axial direction of the connecting arm can be adjusted according to the actual circumference of the steel cage, so that the spacing between the two sleeves can be flexibly adjusted, so that when there is a deviation in the length dimension of the annular steel bar, it can be compensated by adjusting the position of the limit part. In this way, this solution can flexibly compensate for the length error of the annular steel bar while realizing stable connection of the two ends of the annular steel bar, has good practicality, and is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a horizontal annular steel bar connection device for a reinforced concrete circular caisson provided by an embodiment of the utility model;

[0024] Figure 2 yes Figure 1 A schematic diagram of the structure of the horizontal annular reinforcement connection device of a reinforced concrete circular caisson when connecting annular reinforcement (partially shown);

[0025] Figure 3 yes Figure 2 A cross-sectional view of the horizontal annular reinforcement connection device of a reinforced concrete circular caisson;

[0026] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle sleeve.

[0027] Description of reference numerals:

[0028] 1. Sleeve; 1a. Limiting channel; 1b. Avoidance; 1c. Storage groove; 1d. Card slot; 11. Locking piece; 111. Internal thread; 12. Locking section; 13. Avoidance section; 14. Anti-slip groove; 2. Connecting arm; 21. Connecting screw; 3. Limiting part; 31. Limiting nut; 4. Sliding cover; 41. Card convex; 5. Sealing ring; 6. Annular reinforcement. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] In order to solve the technical problems in the prior art that, during the production process of annular steel bars, the conventional connection method is to weld the two ends of the steel bars together, the welding quality of the steel bars is usually difficult to ensure, and an electric welding machine is required, the welding workload is large, the construction cost is high, and the operation is relatively cumbersome, the utility model provides a horizontal annular steel bar connection device for reinforced concrete circular caisson, which can realize the rapid connection of the annular steel bars, is simple and convenient to operate, and can flexibly compensate for the length error of the annular steel bars.

[0031] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 This is a schematic structural diagram of a horizontal annular steel bar connection device for a reinforced concrete circular caisson in an embodiment of the utility model, wherein the horizontal annular steel bar connection device for a reinforced concrete circular caisson comprises a connecting arm 2, a limiting portion 3 and two sleeves 1; at least one sleeve 1 is provided with a limiting channel 1a connected to its inner cavity at one end close to the other sleeve 1, and each sleeve 1 is provided with a locking member 11 so that it can be locked to the annular steel bar 6 when it moves to a preset position relative to the annular steel bar 6; the two ends of the connecting arm 2 are respectively connected to the two sleeves 1, and at least one end extends into the sleeve 1 from the limiting channel 1a; the limiting portion 3 is installed at the end of the connecting arm 2 extending into the sleeve 1 from the limiting channel 1a, and is used to limit the connecting arm 2 from disengaging from the limiting channel 1a, and its position in the axial direction of the connecting arm 2 is adjustable.

[0032] In the reinforced concrete circular caisson horizontal annular steel bar connection device provided by the utility model, the two ends of the annular steel bar 6 can be stably connected through the connecting arm 2 and the two sleeves 1; at the same time, when connecting the two ends of the annular steel bar 6, the position of the limiting part 3 in the axial direction of the connecting arm 2 can be adjusted according to the actual circumference of the steel cage, so that the spacing between the two sleeves 1 can be flexibly adjusted, so that when there is a deviation in the length dimension of the annular steel bar 6, it can be compensated by adjusting the position of the limiting part 3. In this way, this solution can flexibly compensate for the length error of the annular steel bar 6 while achieving stable connection of the two ends of the annular steel bar 6, and has good practicality and is simple and convenient to operate.

[0033] In one embodiment, see Figure 3 One end of the connecting arm 2 extending from the limiting channel 1a into the sleeve 1 is provided with an external thread to form a threaded end, and the limiting portion 3 is a limiting nut 31, and the limiting nut 31 is screwed onto the threaded end.

[0034] In this solution, the axial position of the limit nut 31 on the connecting arm 2 is adjusted by the cooperation between the limit nut 31 and the threaded end, and the limit nut 31 effectively prevents the connecting arm 2 from being separated from the sleeve 1, thereby ensuring the connection stability at both ends of the annular steel bar 6 while making the distance between the two sleeves 1 adjustable, with a simple and reliable structure and easy operation.

[0035] In one embodiment, each sleeve 1 is provided with a limiting channel 1a at one end close to the other sleeve 1, the connecting arm 2 is a connecting screw 21, and the two ends of the connecting screw 21 extend into the two sleeves 1 from the two limiting channels 1a respectively; two limiting nuts 31 are provided, and the two limiting nuts 31 are respectively screwed on the two ends of the connecting screw 21.

[0036] In this embodiment, limiting channels 1a are respectively provided at the ends of the two sleeves 1 that are close to each other, and the connecting arm 2 is correspondingly provided as a connecting screw 21, and two limiting nuts 31 are provided, so that in actual application, any limiting nut 31 can be adjusted to improve flexibility, and the structure is simple and the cost is low.

[0037] In one embodiment, the outer diameter of the limiting nut 31 is larger than the inner diameter of the limiting channel 1 a , and the outer diameter of the connecting arm 2 is smaller than the inner diameter of the limiting channel 1 a .

[0038] In this embodiment, the connecting screw 21 has a certain radial displacement freedom in the limiting channel 1a, and the annular steel bar 6 can be connected even when the steel bar deviation is misaligned. In addition, the two ends of the connecting arm 2 can rotate relative to the two sleeves 1 to meet the locking requirements of the sleeves 1 and the annular steel bar 6.

[0039] In one embodiment, the side wall of the sleeve 1 is provided with an escape opening 1 b communicating with the inner cavity thereof, and the escape opening 1 b is directly opposite to the end of the connecting arm 2 extending into the sleeve 1 from the limiting channel 1 a.

[0040] In this embodiment, a relief opening 1b is provided on the side wall of the sleeve 1, so that when the sleeve 1 is locked on the annular steel bar 6, the position of the limit nut 31 on the connecting screw 21 can also be adjusted through the relief opening 1b, thereby improving convenience.

[0041] In one embodiment, see Figure 4 The outer wall of the sleeve 1 is provided with a receiving groove 1c connected to the avoidance opening 1b, and the two opposite side walls of the receiving groove 1c are provided with sliding grooves, which extend to a side wall of the avoidance opening 1b away from the receiving groove 1c; the side wall of the avoidance opening 1b away from the receiving groove 1c is provided with a clamping groove 1d, and the reinforced concrete circular caisson horizontal annular steel bar connection device also includes a sliding cover 4, the sliding cover 4 is provided with a sliding rail corresponding to the sliding groove, and is provided with a clamping protrusion 41 corresponding to the clamping groove 1d, the sliding rail is slidably arranged in the sliding groove, and the clamping protrusion 41 can be clamped in the clamping groove 1d when the sliding cover 4 slides close to the clamping groove 1d.

[0042] In this embodiment, when there is no need to adjust the position of the limit nut 31 on the connecting screw 21, the sliding cover 4 can be slid to cover the avoidance opening 1b to prevent external mud and sand from entering the inner cavity of the sleeve 1 and hindering the subsequent adjustment of the limit nut 31. In addition, a sealing ring 5 is provided on the inner wall of the limit channel 1a to prevent external mud and sand from entering the inner cavity of the sleeve 1 from the limit channel 1a. It should be noted that the clamping protrusion 41 and the clamping groove 1d adopt an interference fit or a magnetic fit.

[0043] In one embodiment, the locking member 11 is an internal thread 111 provided on the inner wall of the sleeve 1. When the sleeve 1 rotates around its own axis relative to the annular steel bar 6, the internal thread 111 can cooperate with the external thread provided on the end of the annular steel bar 6 to screw the sleeve 1 onto the annular steel bar 6.

[0044] In this embodiment, the locking member 11 is set as the internal thread 111 of the sleeve 1 to cooperate with the external thread at the end of the annular steel bar 6 to achieve a quick connection between the sleeve 1 and the annular steel bar 6. The structure is simple and reliable, and the operation is convenient.

[0045] In one embodiment, the inner cavity of the sleeve 1 is provided with a locking section 12 and an avoidance section 13 along the direction approaching the other sleeve 1, the inner wall of the locking section 12 is provided with an internal thread 111, and its inner diameter is smaller than the inner diameter of the avoidance section 13; the end of the connecting arm 2 extending from the limiting channel 1a into the sleeve 1 is located in the avoidance section 13.

[0046] In this embodiment, the internal thread 111 adapted to the annular reinforcement 6 is provided in the locking section 12, and the end of the connecting screw 21 is placed in the avoidance section 13 to avoid interference between the connecting rod and the annular reinforcement 6, while ensuring the connection stability between the annular reinforcement 6 and the sleeve 1. The inner diameter of the avoidance section 13 is set to be larger than the inner diameter of the locking section 12, so that the operator can turn the limit nut 31 easily.

[0047] It should be noted that, in another embodiment, the locking member 11 is configured as a locking pin and a compression spring, and the locking pin and the compression spring are connected to the inner wall of the sleeve 1, so that the locking pin can be elastically retracted along the radial direction of the sleeve 1. A spiral groove and a locking hole are correspondingly provided at the end of the annular reinforcement 6, and the groove depth of the spiral groove gradually decreases in the direction close to the locking hole. After the locking pin enters the spiral groove, the sleeve 1 is rotated so that the locking pin slides along the spiral groove until the locking pin enters the locking hole, thereby achieving the locking of the sleeve 1 and the annular reinforcement 6.

[0048] In one embodiment, a plurality of anti-skid grooves 14 are provided at intervals along the circumference of the outer side wall of the sleeve 1 , and each anti-skid groove 14 extends along the axial direction of the sleeve 1 .

[0049] In this embodiment, an anti-slip groove 14 is provided on the outer wall of the sleeve 1, so that the operator can hold the portion of the sleeve 1 provided with the anti-slip groove 14 to rotate the sleeve 1 relative to the annular steel bar 6, so that the sleeve 1 is screwed to the end of the annular steel bar 6, thereby improving convenience.

[0050] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the utility model is described in detail:

[0051] When connecting the two ends of the annular steel bar 6, the sleeve 1 is first directly screwed on the two ends of the annular steel bar 6 with external threads to achieve the connection of the annular steel bar 6. Then, the position of the limit nut 31 on the connecting screw 21 is adjusted according to the circumference of the steel cage to reduce or increase the distance between the two sleeves 1, thereby achieving the adjustment of the overall length of the annular steel bar 6 and compensating for the size error of the annular steel bar 6. In this way, while achieving an effective and stable connection of the annular steel bar 6, the length error of the annular steel bar 6 can be flexibly compensated, which has good practicality and is simple and convenient to operate.

[0052] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A reinforced concrete circular caisson horizontal annular steel bar connection device, characterized in that: include: Two sleeves, at least one of the sleeves is provided with a limiting passage connected to its inner cavity near one end of the other sleeve, and each sleeve is provided with a locking piece so as to be locked to the annular steel bar when the sleeve moves to a preset position relative to the annular steel bar; A connecting arm, two ends of which are respectively connected to the two sleeves, and at least one end of which extends from the limiting passage into the sleeve; and The limiting portion is installed at the end of the connecting arm extending from the limiting channel into the sleeve, and is used to limit the connecting arm from being separated from the limiting channel, and its position in the axial direction of the connecting arm is adjustable.

2. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 1, characterized in that: One end of the connecting arm extending from the limiting passage into the sleeve is provided with an external thread to form a threaded end, and the limiting portion is a limiting nut, and the limiting nut is screwed onto the threaded end.

3. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 2, characterized in that: The end of each sleeve close to the other sleeve is respectively provided with the limiting channel, the connecting arm is a connecting screw, and the two ends of the connecting screw extend from the two limiting channels into the two sleeves respectively; There are two limit nuts, which are respectively screwed on the two ends of the connecting screw.

4. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 2, characterized in that: The outer diameter of the limiting nut is larger than the inner diameter of the limiting channel, and the outer diameter of the connecting arm is smaller than the inner diameter of the limiting channel.

5. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 2, characterized in that: The side wall of the sleeve is provided with an escape opening connected to the inner cavity thereof, and the escape opening is directly opposite to the end of the connecting arm extending from the limiting channel into the sleeve.

6. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 5, characterized in that: The outer side wall of the sleeve is provided with a receiving groove connected to the avoidance opening, and two opposite side walls of the receiving groove are provided with sliding grooves, and the sliding grooves extend to a side wall of the avoidance opening away from the receiving groove; A clamping groove is provided on the side wall of the avoidance opening away from the storage groove, and the horizontal annular steel bar connection device of the reinforced concrete circular caisson also includes a sliding cover, the sliding cover is provided with a sliding rail corresponding to the sliding groove, and a clamping protrusion is provided corresponding to the clamping groove, the sliding rail is slidably arranged in the sliding groove, and the clamping protrusion can be clamped in the clamping groove when the sliding cover slides close to the clamping groove.

7. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 1, characterized in that: The locking member is an internal thread provided on the inner wall of the sleeve. When the sleeve rotates around its own axis relative to the annular steel bar, the internal thread can cooperate with the external thread provided on the end of the annular steel bar to screw the sleeve onto the annular steel bar.

8. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 7, characterized in that: The inner cavity of the sleeve is provided with a locking section and an avoidance section along the direction close to the other sleeve, the inner wall of the locking section is provided with the internal thread, and the inner diameter of the locking section is smaller than the inner diameter of the avoidance section; One end of the connecting arm extending from the limiting passage into the sleeve is located in the avoidance section.

9. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 1, characterized in that: The outer side wall of the sleeve is provided with a plurality of anti-skid grooves at intervals along its circumference, and each of the anti-skid grooves extends along the axial direction of the sleeve.

10. The reinforced concrete circular caisson horizontal annular steel bar connection device according to claim 1, characterized in that: The inner wall of the limiting channel is provided with a sealing ring.

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