A three-way adjustable bolted connection

Abstract

The present application relates to a kind of three-way adjustable bolt connections, including sales department, bolt part, connecting piece and adjusting part;The sales department, the bolt part is placed on two components;The sales department includes the sales sleeve that is open to the bolt part and the support sleeve that is fixed in the open end of the sales sleeve;The bolt part includes the bolt sleeve that is open to the sales department;The connecting piece includes connecting rod and the connecting head that is fixed in the top end of the connecting rod;The outer periphery of the connecting rod is provided with external thread;The connecting head is in the sales sleeve, the connecting rod passes through the support sleeve, the adjusting part after being downward, end is connected with the bolt sleeve thread;The connecting piece can be moved along the radial direction of the sales sleeve;The lower end of the connecting head is attached to the upper end of the support sleeve;The adjusting part is threadedly sleeved on the connecting rod;The upper end of the adjusting part is attached to the lower end of the sales sleeve, and the lower end is attached to the upper end of the bolt sleeve.

Description

TECHNICAL FIELD

[0001] The present application relates to a three-way adjustable bolt connection, belonging to the technical field of building engineering. BACKGROUND

[0002] In recent years, the plug-in structure has been widely used in the connection of components in various fields. This structure has the advantages of no welding, no curing agent, self-adapting to the eccentricity of the connecting piece, and easy implementation, and is suitable for the connection of various assembly structures.

[0003] The Chinese utility model patent with the authorization announcement number CN214995265U "steel butt joint connection combined sleeve", provides a steel butt joint connection combined sleeve, which comprises: a first sleeve, which is connected with a first steel bar through an inner threaded hole at the outer end; a top rod, one end of which is connected with the inner threaded hole at the inner end of the first sleeve, and the other end is provided with a convex spherical surface; a lock nut, which assists in limiting the length of the top rod extending out of the inner threaded hole; a second sleeve, one end of which is connected with a second steel bar, and the other end is radially retracted to form a shoulder, the shoulder can pass a part of the convex spherical surface of the top rod, so that the convex spherical surface of the top rod can abut against the end face of the second steel bar; an outer sleeve, one end of which is provided with an inner thread for connecting with the outer thread of the first sleeve, and the other end abuts against one end of the second sleeve facing the second steel bar. The convex spherical surface of the top rod can abut against the end face of the second steel bar, and the inner and outer threads of the first sleeve adopt a right and left thread structure, which can reduce the internal gap of the threaded connection pair and improve the deformation performance of the joint.

[0004] However, in the above-mentioned patent, although the spherical surface cooperation is used, the deformation performance of the joint of the steel bars with deviation in coaxiality can still meet the requirements; at the same time, the installation and combination quality of the sleeve can be checked and confirmed through the appearance during joint connection. However, in actual use, the two sleeves are placed on different components, and there is not enough space between the two components for the worker to confirm the plug-in condition between the two sleeves. In addition, if there is deviation between the two sleeves, it is difficult to adjust, and even the entire device may fail. SUMMARY

[0005] In order to overcome the above problems, the present application provides a three-way adjustable bolt connection, which is simple in structure, and the movable arrangement of the connecting piece in the bearing sleeve can correct the deviation between the bearing part and the plug-in part during plug-in, so as to smoothly complete the plug-in work.

[0006] The technical scheme of the present application is as follows:

[0007] A three-way adjustable bolted connection, comprising a bearing part, a bolt part, a connecting part and an adjusting part; the bearing part and the bolt part are arranged on two components; the bearing part comprises a bearing sleeve open towards the bolt part and a supporting sleeve fixed on the open end of the bearing sleeve by screwing; the bolt part comprises a bolt sleeve open towards the bearing part; the connecting part comprises a connecting rod and a connecting head fixed on the top end of the connecting rod; the outer periphery of the connecting rod is provided with external threads; the connecting head is located in the bearing sleeve, the connecting rod passes through the supporting sleeve and the adjusting part downwards, and the terminal end is threadedly connected with the bolt sleeve; the connecting part can move along the radial direction of the bearing sleeve; the lower end of the connecting head is attached to the upper end of the supporting sleeve; the adjusting part is threadedly sleeved on the connecting rod; the upper end of the adjusting part is attached to the lower end of the bearing sleeve, and the lower end is attached to the upper end of the bolt sleeve.

[0008] Further, a floating sleeve is arranged in the bearing sleeve; the floating sleeve is sleeved on the outer periphery of the connecting rod; the lower end of the floating sleeve is attached to the upper end of the supporting sleeve; the lower end of the connecting head is attached to the upper end of the floating sleeve; the floating sleeve can move along the radial direction of the bearing sleeve.

[0009] Further, the adjusting part comprises an adjusting nut and a screw; the adjusting nut is threadedly sleeved on the connecting rod; the lower end of the adjusting nut is attached to the upper end of the bolt sleeve; the outer periphery of one side of the connecting rod is axially provided with a sliding groove; the screw passes through the adjusting nut from the outside to the inside, and the terminal end can be attached to the groove bottom of the sliding groove; the screw is threadedly connected with the adjusting nut.

[0010] Further, the adjusting part further comprises a locking nut; the locking nut is threadedly sleeved on the outer side of the connecting rod; the locking nut is located above the adjusting nut; the upper end of the locking nut is attached to the lower end of the bearing sleeve.

[0011] Further, the upper end of the inner periphery of the floating sleeve is annularly provided with a spherical concave surface; the lower end of the connecting head is annularly provided with a spherical convex surface; the spherical convex surface is slidingly connected with the spherical concave surface; the inner diameter of the floating sleeve is greater than the outer diameter of the connecting rod.

[0012] Further, a reinforcing steel bar is threadedly fixed on the bearing sleeve and the bolt sleeve respectively; one of the reinforcing steel bars is arranged on the side of the bearing sleeve away from the bolt sleeve, and the other reinforcing steel bar is arranged on the side of the bolt sleeve away from the bearing sleeve.

[0013] Further, the lower end of the supporting sleeve is provided with a clamping groove.

[0014] The present application has the following beneficial effects:

[0015] 1. The bolt connecting piece has simple structure, and the movable arrangement of the connecting piece in the bearing sleeve can correct the slight deviation between the bearing part and the bolt part during the insertion, and realize the first direction adjustment in the three direction adjustment.

[0016] 2. The floating sleeve can be used as the intermediate connecting piece between the support sleeve and the connecting head, and can improve the stress condition of the connecting head, and can move radially along the bearing sleeve together with the connecting piece to correct the slight deviation between the bearing part and the bolt part.

[0017] 3. The adjusting nut is arranged in the adjusting part, the screw is clamped in the sliding groove, the connecting piece can be adjusted, the connecting head, the floating sleeve and the support sleeve are pressed and tightly matched, and the bolt part and the bearing part are fixed. Then, the screw is loosened to exit the sliding groove, the adjusting nut is rotated to press the bolt sleeve, and the second direction adjustment in the three direction adjustment is realized.

[0018] 4. The adjusting nut is arranged in the adjusting part, the screw is clamped in the sliding groove, the connecting piece can be adjusted, the connecting head, the floating sleeve and the support sleeve are pressed and tightly matched, and the bolt part and the bearing part are fixed. Then, the screw is loosened to exit the sliding groove, the adjusting nut is rotated to press the bolt sleeve, and the second direction adjustment in the three direction adjustment is realized.

[0019] 5. The connecting head and the floating sleeve are slidably matched through the spherical surface, the inner diameter of the floating sleeve is larger than the outer diameter of the connecting rod, and when there is a small angle deviation between the axis of the bearing part and the axis of the bolt part, the bearing part and the bolt part can be smoothly inserted and fixed through the sliding matching between the spherical surfaces. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic view of the present application.

[0021] Figure 2 It is the sectional view of Figure 1 .

[0022] Figure 3 It is the enlarged view of A of Figure 2 .

[0023] Figure 4 It is the internal structure schematic view of the bearing part.

[0024] Figure 5 It is the internal structure schematic view of the bolt part.

[0025] Figure 6 It is the matching schematic view of the connecting piece and the adjusting part.

[0026] The reference signs in the drawing represent:

[0027] 1, the sales department; 11, the sales sleeve; 12, the support sleeve; 13, the floating sleeve; 14, the spherical concave; 15, the clamping groove; 2, the bolt part; 21, the bolt sleeve; 3, the connecting piece; 31, the connecting rod; 32, the connecting head; 33, the sliding groove; 34, the spherical convex; 4, the adjusting part; 41, the adjusting nut; 42, the screw; 43, the locking nut; 5, the steel bar. DETAILED DESCRIPTION

[0028] The application will be described in detail below with reference to the drawings and specific embodiments.

[0029] Reference Figures 1-6 A three-way adjustable bolt connecting piece, comprising a sales department 1, a bolt part 2, a connecting piece 3 and an adjusting part 4; the sales department 1 and the bolt part 2 are respectively arranged on two components; the sales department 1 comprises a sales sleeve 11 which is open towards the bolt part 2 and a support sleeve 12 which is fixed by screwing at the open end of the sales sleeve 11; the bolt part 2 comprises a bolt sleeve 21 which is open towards the sales department 1; the connecting piece 3 comprises a connecting rod 31 and a connecting head 32 which is fixed at the top end of the connecting rod 31; the outer periphery of the connecting rod 31 is provided with external threads; the connecting head 32 is located in the sales sleeve 11, and the connecting rod 31 passes through the support sleeve 12 and the adjusting part 4 downwards, and the terminal end is threadedly connected with the bolt sleeve 21; the connecting piece 3 can move radially along the sales sleeve 11; the lower end of the connecting head 32 is attached to the upper end of the support sleeve 12; the adjusting part 4 is threadedly sleeved on the connecting rod 31; the upper end of the adjusting part 4 is attached to the lower end of the sales sleeve 11, and the lower end is attached to the upper end of the bolt sleeve 21.

[0030] According to the above description, the three-way adjustable bolt connecting piece comprises a sales department 1, a bolt part 2, a connecting piece 3 and an adjusting part 4. The sales department 1 and the bolt part 2 are respectively arranged on two components; the upper and lower ends of the connecting piece 3 are respectively located in the sales department 1 and the bolt part 2, and play a connecting role; the adjusting part 4 is sleeved outside the connecting piece 3 and located between the sales department 1 and the bolt part 2. The connecting head 32 of the connecting piece 3 is arranged in the sales sleeve 11 and located on the support sleeve 12; the connecting rod 31 of the connecting piece 3 passes through the support sleeve 12 and the adjusting part 4 in turn, and the terminal end is threadedly connected with the bolt sleeve 21. The connecting piece 3 can move radially along the sales sleeve 11, and the connecting rod 31 has a certain radial movement space in the support sleeve 12, so that even if the sales department 1 and the bolt part 2 are not coaxial and have some deviation in the axial direction during splicing, the radial displacement of the connecting piece 3 in the sales sleeve 11 can be used to correct it, so as to smoothly complete the splicing work of the whole. The radial adjustment of the connecting rod 31 in the support sleeve 12 is the first direction adjustment in the three-way adjustable bolt connecting piece.

[0031] Particularly, the outer diameter of the connecting rod 31 is smaller than the outer diameter of the connecting head 32 and the inner diameter of the support sleeve 12, and the outer diameter of the connecting head 32 is larger than the inner diameter of the support sleeve 12. The outer diameter of the connecting head 32 is larger than the inner diameter of the support sleeve 12, so that the connecting head 32 cannot come out of the support sleeve 12, thereby ensuring the reliability of the three-way adjustable bolt connection when connected. The outer diameter of the connecting rod 31 is smaller than the outer diameter of the connecting head 32 and the inner diameter of the support sleeve 12, so that the connecting rod 31 has a certain radial activity space in the support sleeve 12, so that the shafting part 1 and the pin part 2 can be connected smoothly even if they are not coaxial and have some axial deviation, as long as the connecting head 32 of the connecting part 3 fixed on the support sleeve 11 can enter the support sleeve 11 smoothly, and the support sleeve 12 can be normally screwed on the open end of the support sleeve 11. The axial deviation can be corrected by the radial displacement of the connecting part 3 in the support sleeve 11 to complete the connection of the shafting part 1 and the pin part 2.

[0032] Further, the support sleeve 11 is further provided with a floating sleeve 13; the floating sleeve 13 is sleeved on the outer periphery of the connecting rod 31; the lower end of the floating sleeve 13 is attached to the upper end of the support sleeve 12; the lower end of the connecting head 32 is attached to the upper end of the floating sleeve 13; and the floating sleeve 13 can move radially along the support sleeve 11.

[0033] According to the above description, the support sleeve 11 is further provided with a floating sleeve 13. The floating sleeve 13 is sleeved on the outer periphery of the connecting rod 31 and can move radially along the support sleeve 11. On the one hand, the floating sleeve 13 plays an intermediate role between the connecting head 32 and the support sleeve 12, improving the stress effect of the connecting head 32; on the other hand, through the cooperation between the floating sleeve 13 and the connecting rod 31, the connecting part 3 has a certain radial activity space in the support sleeve 11, so that the slight deviation between the shafting part 1 and the pin part 2 can be corrected by the radial displacement of the connecting part 3 in the support sleeve 11.

[0034] Particularly, the outer diameter of the floating sleeve 13 is smaller than the inner diameter of the support sleeve 11, so that the floating sleeve 13 can move radially along the support sleeve 11 before the connecting part 3 is completely fixed by the adjusting part 4; and the outer diameter of the connecting rod 31 should be slightly smaller than the inner diameter of the floating sleeve 13 to ensure that the connecting rod 31 can pass through the inner periphery of the floating sleeve 13.

[0035] Further, the adjusting part 4 comprises an adjusting nut 41 and a screw 42; the adjusting nut 41 is threadedly sleeved on the connecting rod 31; the lower end of the adjusting nut 41 is attached to the upper end of the pin sleeve 21; the outer periphery of the connecting rod 31 is provided with a sliding groove 33 in the axial direction; the screw 42 passes through the adjusting nut 41 from the outside to the inside, and the terminal end can be attached to the groove bottom of the sliding groove 33; and the screw 42 is threadedly connected with the adjusting nut 41.

[0036] According to the above description, the adjusting part 4 comprises an adjusting nut 41 and a screw 42. The adjusting nut 41 is threadedly arranged on the connecting rod 31 above the bolt sleeve 21. After the screw 42 passes through the adjusting nut 41, the end can be engaged in the sliding groove 33 on the connecting rod 31. By rotating the screw 42, the connecting piece 3 can be moved up and down along the bolt part 2, so that the connecting head 32 can be fixed in the supporting part 1. After the screw 42 is loosened and the screw 42 is separated from the sliding groove 33, the adjusting nut 41 can be moved up and down along the connecting rod 31. The axial adjustment of the adjusting nut 41 along the connecting rod 31 is the second direction adjustment in the three-direction adjustable bolt connecting piece.

[0037] Specifically, after the screw 42 is tightened until the screw 42 is engaged in the sliding groove 33, the connecting rod 31 is rotated by rotating the adjusting nut 41, and the connecting piece 3 is moved up and down along the bolt part 2 by the engagement of the screw 42. After the connecting head 32 enters the supporting sleeve 11 and the support sleeve 12 is threadedly fixed at the open end of the supporting sleeve 11, the preliminary insertion between the supporting part 1 and the bolt part 2 is completed. Subsequently, the screw 42 is tightened again, and the connecting piece 3 is moved downward by rotating the adjusting nut 41, so that the connecting head 32 is tightly pressed against the support sleeve 12 (the floating sleeve 13), so as to realize the tight fit between the connecting head 32, the support sleeve 12 (and the floating sleeve 13), and fix the connecting head 32 in the supporting sleeve 11, complete the fixation between the supporting part 1 and the bolt part 2, and complete the first direction adjustment in the three-direction adjustable bolt connecting piece. Then, the screw 42 is loosened to separate the screw 42 from the sliding groove 33, the adjusting nut 41 is rotated, and the adjusting nut 41 can be moved on the connecting rod 31. At this time, the adjusting nut 41 is rotated downward, so that the adjusting nut 41 is pressed against the bolt sleeve 21 until the adjusting nut 41 cannot be rotated, and the adjusting nut 41 is adjusted to the position, and the second direction adjustment in the three-direction adjustable bolt connecting piece is completed.

[0038] Further, the adjusting part 4 further comprises a locking nut 43; the locking nut 43 is threadedly arranged outside the connecting rod 31; the locking nut 43 is located above the adjusting nut 41; the upper end of the locking nut 43 is attached to the lower end of the supporting sleeve 11.

[0039] According to the above description, the adjusting part 4 further comprises a locking nut 43. The locking nut 43 is threadedly arranged on the connecting rod 31 between the adjusting nut 41 and the supporting sleeve 11. The axial adjustment of the locking nut 43 along the connecting rod 31 is the third direction adjustment in the three-direction adjustable bolt connecting piece.

[0040] Specifically, after the adjusting nut 41 is adjusted in place, the locking nut 43 is rotated to press against the receiving sleeve 11 until the locking nut 43 cannot be rotated, and then the locking nut 43 is adjusted in place, and the third adjustment of the three-directional adjustable bolt connection is completed, and the overall plug-in work of the three-directional adjustable bolt connection is also completed.

[0041] Specifically, due to the limitation of the site construction conditions, the space between the receiving part 1 and the plug-in part 2 may be limited, and the adjustment work of the adjusting part 4 may not be completed at one time, and the adjusting nut 41, the screw 42 and the locking nut 43 need to be rotated multiple times. However, no matter how many times the adjustment is needed, the procedure of the adjustment work is to first realize the fixation between the receiving part 1 and the plug-in part 2 (i.e. the close fit between the connecting head 32, the supporting sleeve 12 and the floating sleeve 13), and then adjust the adjusting nut 41 side (tighten the plug-in sleeve 21), and finally adjust the locking nut 43 side (tighten the receiving sleeve 11).

[0042] Further, the floating sleeve 13 is annularly provided with a spherical concave surface 14 on the inner wall of the upper end, the connecting head 32 is annularly provided with a spherical convex surface 34 on the lower end, the spherical convex surface 34 is in sliding connection with the spherical concave surface 14, and the inner diameter of the floating sleeve 13 is greater than the outer diameter of the connecting rod 31.

[0043] According to the above description, the connecting head 32 and the floating sleeve 13 are provided with a spherical surface structure and are in sliding fit through the spherical surface structure, and the inner diameter of the floating sleeve 13 is greater than the outer diameter of the connecting rod 31. Through the cooperation between the spherical convex surface 34 and the spherical concave surface 14, the complete fit between the floating sleeve 13 and the connecting piece 3 can be ensured, the contact surface between the floating sleeve 13 and the connecting piece 3 can be increased, the stress concentration can be reduced, and the stress condition of the connecting head 32 can be improved. In addition, and more importantly, when there is an assembly error between the two components, resulting in a small angle between the axis of the receiving part 1 and the axis of the plug-in part 2 on the two components, the connecting head 32 (i.e. the connecting piece 3) is coaxial with the plug-in part 2 through the spherical sliding fit between the spherical convex surface 34 and the spherical concave surface 14, and the floating sleeve 13 is still coaxial with the receiving part 1. In this way, when the axis of the receiving part 1 and the axis of the plug-in part 2 have a small angle, the receiving part 1 and the plug-in part 2 can still be smoothly plugged in through the spherical fit, and the entire bolt connection work can be completed.

[0044] Specifically, the inner diameter of the floating sleeve 13 is only slightly larger than the outer diameter of the connecting rod 31, and the two cannot be too different, so as to avoid subsequent problems that the locking nut 43 cannot fit the receiving sleeve 11, resulting in failure of the third adjustment. Therefore, the angle deviation that can be adjusted by the spherical surface structure can only be completed within a small range.

[0045] Further, the sales sleeve 11, the plug sleeve 21 are respectively screwed with a reinforcing bar 5; one of the reinforcing bar 5 is arranged at the side of the sales sleeve 11 away from the plug sleeve 21, and the other reinforcing bar 5 is arranged at the side of the plug sleeve 21 away from the sales sleeve 11.

[0046] Further, the lower end of the support sleeve 12 is provided with a clamping groove 15. The clamping groove 15 can facilitate the rotation of the support sleeve 12 by the staff.

[0047] The above-mentioned is only the embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent flow transformation made by using the content of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A three-way adjustable bolted connection, characterized by: The utility model provides a kind of adjustable bolt, including sales department (1), latch portion (2), connecting piece (3) and adjusting portion (4);The sales department (1), the latch portion (2) is placed in two components;The sales department (1) includes the support sleeve (12) of the sales sleeve (11) that is opened towards the latch portion (2) and is fixed in the opening end of the sales sleeve (11) with screw thread;The latch portion (2) includes the latch sleeve (21) that is opened towards the sales department (1);The connecting piece (3) includes connecting rod (31) and the connecting head (32) fixed in the top end of the connecting rod (31);The outer periphery of the connecting rod (31) is provided with outer thread;The connecting head (32) is located in the sales sleeve (11), and the connecting rod (31) passes through the support sleeve (12), the adjusting portion (4) after being downward, and the tail end is connected with the latch sleeve (21) with screw thread;The connecting piece (3) can be moved along the radial direction of the sales sleeve (11);The lower end of the connecting head (32) is attached to the upper end of the support sleeve (12);The adjusting portion (4) is threaded on the connecting rod (31);The upper end of the adjusting portion (4) is attached to the lower end of the sales sleeve (11), and the lower end is attached to the upper end of the latch sleeve (21); The adjusting portion (4) includes adjusting nut (41) and screw (42);The adjusting nut (41) is threaded on the connecting rod (31);The lower end of the adjusting nut (41) is attached to the upper end of the latch sleeve (21);The outer periphery of the connecting rod (31) is provided with a sliding groove (33) along the axial direction;The screw (42) passes through the adjusting nut (41) from outside to inside, and the tail end can be attached to the groove bottom of the sliding groove (33);The screw (42) is connected with the adjusting nut (41) with screw thread; The adjusting portion (4) further includes a lock nut (43);The lock nut (43) is threaded on the outer side of the connecting rod (31);The lock nut (43) is located above the adjusting nut (41);The upper end of the lock nut (43) is attached to the lower end of the sales sleeve (11).

2. The three-way adjustable bolted connection of claim 1, wherein: The sales sleeve (11) is further provided with a floating sleeve (13);The floating sleeve (13) is sleeved on the outer periphery of the connecting rod (31);The lower end of the floating sleeve (13) is attached to the upper end of the support sleeve (12);The lower end of the connecting head (32) is attached to the upper end of the floating sleeve (13);The floating sleeve (13) can move along the radial direction of the sales sleeve (11).

3. The three-way adjustable bolted connection of claim 2, wherein: The inner periphery of the floating sleeve (13) is annularly provided with a spherical concave surface (14) on the upper end;The lower end of the connecting head (32) is annularly provided with a spherical convex surface (34);The spherical convex surface (34) is connected with the spherical concave surface (14) in sliding mode;The inner diameter of the floating sleeve (13) is greater than the outer diameter of the connecting rod (31).

4. The three-way adjustable bolted connection of claim 1, wherein: A reinforcing steel bar (5) is threadedly fixed on the sales sleeve (11) and the plug sleeve (21) respectively; one reinforcing steel bar (5) is arranged on the side of the sales sleeve (11) away from the plug sleeve (21), and the other reinforcing steel bar (5) is arranged on the side of the plug sleeve (21) away from the sales sleeve (11).

5. The three-way adjustable bolted connection of claim 1, wherein: The lower end of the supporting sleeve (12) is provided with a clamping groove (15).

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