Porous self-locking chain bolt

Abstract

The utility model relates to the technical field of chain bolts, and provides a multi-hole self-locking chain bolt which comprises a bolt body and a connecting piece, the connecting piece is arranged at the top of the bolt body, a butt joint locking assembly is arranged between the bolt body and the connecting piece, a connecting fixing assembly is arranged at the bottom of the bolt body, and a butt joint threaded groove is formed in the bottom of the connecting piece. An inner layer is arranged at the top in the butt-joint threaded groove, side holes are formed in the two sides in the butt-joint threaded groove, and movable blocks are movably connected into the side holes in a sleeved mode. By means of the technical scheme, the problem that in the prior art, when the chain is connected, a proper pin shaft needs to penetrate through the connecting holes and the through holes in the chain, then the chain can be fixed, and the connecting mode is tedious is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of chain bolts, and specifically relates to a multi-hole self-locking chain bolt. Background Art

[0002] A bolt is a mechanical part, a cylindrical threaded fastener used in conjunction with a nut, a fastener composed of a head and a screw rod, and is used for fastening and connecting two parts with through holes. A chain bolt mainly includes a head and a threaded section. The head is used to connect other mechanisms or components, and the threaded section is used for fixing;

[0003] Chinese Patent Publication (Publication No.: CN204778665U) discloses a hanging chain bolt for an electric stacker, which includes a bolt cylinder and a connecting head integrally formed with the bolt cylinder at the upper end of the bolt cylinder. Threads are provided on the outer side of the bolt cylinder. Three chain grooves are longitudinally provided in the connecting head, and a connecting hole perpendicular to the groove wall of the chain groove is transversely provided in the connecting head. The chain pieces at both ends of the chain are arranged in the chain grooves, and the chain is fixed by passing a pin through the connecting hole and the through hole on the chain piece. By providing the hanging chain bolt, the chain is fixed, the operation of the gantry chain is made more stable, the phenomena such as derailment and chain breakage of the gantry chain can be effectively prevented, the working safety factor of the whole forklift is improved, and the performance of the forklift is further improved;

[0004] Although this chain bolt plays a role in fixing the chain and improves the running stability, when connecting the chain, a suitable pin needs to be used to pass through the connecting hole and the through hole on the chain to complete the fixing of the chain, and its connection method is relatively cumbersome.

[0005] Therefore, improvements are made to the above problems. Summary of the Utility Model

[0006] The utility model provides a multi-hole self-locking chain bolt, which solves the problem that in the related technology, when connecting a chain, a suitable pin needs to be used to pass through the connecting hole and the through hole on the chain to complete the fixing of the chain, and its connection method is relatively cumbersome.

[0007] The technical solution of the utility model is as follows: including

[0008] a bolt and a connecting piece, the connecting piece is arranged on the top of the bolt;

[0009] a docking locking component, the docking locking component is arranged between the bolt and the connecting piece;

[0010] a connection fixing component, the connection fixing component is arranged at the bottom of the bolt;

[0011] The docking and locking assembly includes a docking thread groove, which is opened at the bottom of the connecting member. An inner layer is provided at the top inside the docking thread groove, and side holes are opened on both sides inside the docking thread groove. A movable block is movably sleeved and connected in the side holes.

[0012] As a further technical solution, an inner cutting block is provided on the side end face of the movable block. A spring is connected between the inner cutting block and the inner layer. A card slot is opened on the upper end face of the inner cutting block. A docking block is provided at the upper end of the bolt. The docking block is screwed and connected in the docking thread groove through thread fit.

[0013] As a further technical solution, the upper end of the docking block supports on the surface of the inner cutting block. An external thread groove is opened on the outer surface of the docking block, and an internal thread sleeve is screwed and connected in the external thread groove. An outer ring groove is opened at the bottom of the internal thread sleeve.

[0014] As a further technical solution, a rotating ring is rotatably sleeved and connected in the outer ring groove. A tightening frame is rotatably connected to opposite ends of the rotating ring through a pin shaft. A convex layer is provided at the top inside the tightening frame, and the convex layer is inserted into the card slot.

[0015] As a further technical solution, the connection and fixing assembly includes a slot, which is opened at the bottom of the bolt. An internal thread groove is opened in the slot. A connection seat is inserted and connected in the slot, and a bottom frame is inserted and connected in the connection seat.

[0016] As a further technical solution, a pair of connection ears are provided on the surface of the bottom frame. A connection groove is opened on the bottom surface of the bottom frame, and the connection groove is a through structure. A fixing screw is inserted and connected in the connection groove, and the upper end of the fixing screw is screwed and connected in the internal thread groove.

[0017] As a further technical solution, several round rods are provided at the bottom of the connecting member, and a loosening prevention sleeve is sleeved and connected on the round rods.

[0018] As a further technical solution, the tightening frame is integrally in a portal structure, and the cross sections of the card slot and the convex layer are in a triangular structure.

[0019] As a further technical solution, the diameter dimension of the bottom of the bottom frame is larger than the diameter dimension of the bolt.

[0020] As a further technical solution, the side surface of the inner cutting block and the upper end of the docking block are both inclined structural surfaces.

[0021] The working principle and beneficial effects of the present utility model are as follows:

[0022] In the present utility model, a docking locking assembly is provided. Through the interaction of structures such as a docking thread groove, a movable block, an inner cutting block, a spring, a docking block, an inner thread sleeve, and a tightening frame, through the tightening effect of the movable block and the tightening frame, the connecting piece and the bolt can be quickly docked, and a self-locking effect is formed, improving the connection efficiency between the connecting piece and the bolt and facilitating replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0024] Figure 1 is a schematic structural diagram of the present utility model;

[0025] Figure 2 is an axonometric view of the present utility model;

[0026] Figure 3 is an axonometric sectional view of the present utility model;

[0027] Figure 4 is an attachment of the present utility model Figure 3 partial enlarged view of part A in;

[0028] Figure 5 is an attachment of the present utility model Figure 3 partial enlarged view of part B in;

[0029] In the figure: 1. Bolt; 2. Connecting piece; 3. Docking locking assembly; 3-1. Docking thread groove; 3-2. Inner layer; 3-3. Side hole; 3-4. Movable block; 3-5. Inner cutting block; 3-6. Spring; 3-7. Card slot; 3-8. Docking block; 3-9. Outer thread groove; 3-10. Inner thread sleeve; 3-11. Outer ring groove; 3-12. Rotating ring; 3-13. Tightening frame; 3-14. Convex layer; 4. Connection fixing assembly; 4-1. Slot; 4-2. Inner thread groove; 4-3. Connection seat; 4-4. Bottom frame; 4-5. Connection ear; 4-6. Connection groove; 4-7. Fixing screw; 5. Round rod; 6. Anti-loosening sleeve. SPECIFIC EMBODIMENTS

[0030] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] As Figures 1 to 5 shown, this embodiment proposes a porous self-locking chain bolt, including

[0032] A bolt 1 and a connecting member 2, with the connecting member 2 arranged on top of the bolt 1;

[0033] A docking and locking assembly 3, with the docking and locking assembly 3 arranged between the bolt 1 and the connecting member 2;

[0034] A connecting and fixing assembly 4, with the connecting and fixing assembly 4 arranged at the bottom of the bolt 1;

[0035] The docking and locking assembly 3 includes a docking thread groove 3-1, which is opened at the bottom of the connecting member 2. An inner layer 3-2 is arranged at the inner top of the docking thread groove 3-1. Side holes 3-3 are opened on both sides inside the docking thread groove 3-1. An active block 3-4 is movably sleeved and connected in the side holes 3-3. An inner cutting block 3-5 is arranged on the side end face of the active block 3-4. A spring 3-6 is connected between the inner cutting block 3-5 and the inner layer 3-2. A card slot 3-7 is opened on the upper end face of the inner cutting block 3-5. A docking block 3-8 is arranged at the upper end of the bolt 1. The docking block 3-8 is screwed and connected in the docking thread groove 3-1 through thread fitting. The upper end of the docking block 3-8 supports on the surface of the inner cutting block 3-5. An external thread groove 3-9 is opened on the outer surface of the docking block 3-8. An internal thread sleeve 3-10 is screwed in the external thread groove 3-9. An outer ring groove 3-11 is opened at the bottom of the internal thread sleeve 3-10. A rotating ring 3-12 is rotatably sleeved and connected in the outer ring groove 3-11. Sleeve tightening frames 3-13 are rotatably connected to opposite ends outside the rotating ring 3-12 through pin shafts. A convex layer 3-14 is arranged at the inner top of the sleeve tightening frame 3-13. The convex layer 3-14 is inserted into the card slot 3-7.

[0036] In this embodiment, in order to achieve the effect that the bolt 1 can be firmly docked with the connecting member 2, a docking and locking assembly 3 is designed. A docking thread groove 3-1 is opened at the bottom of the connecting member 2, an inner layer 3-2 is provided at the inner top, side holes 3-3 are opened on both sides and a movable block 3-4 is movably sleeved. The movable block 3-4 can move left and right in the side hole 3-3. An inner cutting block 3-5 is provided on the inner end face of the movable block 3-4. A spring 3-6 is connected between the inner cutting block 3-5 and the inner layer 3-2 for pulling the movable block 3-4 to keep the movable block 3-4 in the side hole 3-3. A docking block 3-8 is provided at the upper end of the bolt 1. The docking block 3-8 is screwed and connected in the docking thread groove 3-1. By squeezing the inner cutting block 3-5 at the upper end, one end of the movable block 3-4 can be located outside. A card slot 3-7 is opened at the top of the part where the movable block 3-4 leaks out. An external thread groove 3-9 is opened outside the docking block 3-8 and an internal thread sleeve 3-10 is screwed and connected inside. The internal thread sleeve 3-10 can move in the external thread groove 3-9 through thread cooperation. An outer ring groove 3-11 is opened around the bottom of the internal thread sleeve 3-10. A rotatable rotating ring 3-12 is sleeved and connected in the outer ring groove 3-11. Both outer end faces of the rotating ring 3-12 are rotatably connected with a tightening frame 3-13 through a pin shaft. The tightening frame 3-13 is used to sleeve the protruding part of the movable block 3-4. A convex layer 3-14 is provided on the surface of the tightening frame 3-13. The convex layer 3-14 is inserted into the card slot 3-7. The internal thread sleeve 3-10 can be screwed to press the movable block 3-4 downward through the tightening frame 3-13, and the anti-disconnection effect is achieved through the cooperation of the card slot 3-7 and the convex layer 3-14.

[0037] Furthermore, the connection and fixation assembly 4 includes a slot 4-1 opened at the bottom of the bolt 1. An internal thread groove 4-2 is opened in the slot 4-1. A connection seat 4-3 is inserted and connected in the slot 4-1. A bottom frame 4-4 is inserted and connected in the connection seat 4-3. A pair of connection ears 4-5 are provided on the surface of the bottom frame 4-4. A connection groove 4-6 is opened on the bottom surface of the bottom frame 4-4. The connection groove 4-6 is a through structure. A fixing screw 4-7 is inserted and connected in the connection groove 4-6. The upper end of the fixing screw 4-7 is screwed and connected in the internal thread groove 4-2.

[0038] In this embodiment, in order to achieve a detachable connection structure at the bottom, a slot 4-1 is opened at the bottom of the bolt 1. A bottom frame 4-4 is inserted and connected in the slot 4-1. Two connection ears 4-5 are provided at the bottom of the bottom frame 4-4 for connecting with the device. An internal thread groove 4-2 is opened inside the slot 4-1. A connection groove 4-6 is opened in the bottom frame 4-4. The connection groove 4-6 is a through hole structure. In order to strengthen the connection between the bottom frame 4-4 and the bolt 1, a fixing screw 4-7 is inserted into the connection groove 4-6 and screwed and connected in the internal thread groove 4-2 to fix the bottom frame 4-4.

[0039] Furthermore, a plurality of round rods 5 are provided at the bottom of the connecting member 2, and a loosening prevention sleeve 6 is sleeved on the round rods 5.

[0040] In this embodiment, by providing a plurality of round rods 5 at the bottom of the connecting member 2, a loosening prevention sleeve can be sleeved on the round rods 5. The loosening prevention sleeve 6 is wrapped around the outside of the docking and locking assembly 3, playing a role in protection and anti - detachment.

[0041] Furthermore, the overall shape of the tightening frame 3 - 13 is a portal structure, and the cross - sections of the card slot 3 - 7 and the convex layer 3 - 14 are triangular structures.

[0042] In this embodiment, through the portal structure and the cooperation of the card slot 3 - 7 and the convex layer 3 - 14, the tightening frame 3 - 13 can be tightly connected to the movable block 3 - 4.

[0043] Furthermore, the bottom diameter dimension of the bottom frame 4 - 4 is larger than the diameter dimension of the bolt 1.

[0044] In this embodiment, through the larger diameter dimension, when installing a nut on the bolt 1, an anti - detachment effect can be achieved.

[0045] Furthermore, the side surface of the inner cutting block 3 - 5 and the upper end of the docking block 3 - 8 are both inclined structural surfaces.

[0046] In this embodiment, through the inclined structural surfaces, a sliding effect is achieved when the docking block 3 - 8 contacts the inner cutting block 3 - 5.

[0047] When in use, first connect the connecting member 2 with the chain, take out the bolt 1 and screw the docking block 3 - 8 at the top into the docking thread groove 3 - 1. When screwing in, push the inner cutting block 3 - 5 to push the movable block 3 - 4 out to the outside. Then rotate the tightening frame 3 - 13 to the top of the movable block 3 - 4, and then turn the internal thread sleeve 3 - 10 to pull the tightening frame 3 - 13 downward so that the convex layer 3 - 14 is stuck into the card slot 3 - 7 to complete the fixation. Then push the loosening prevention sleeve 6 upward and sleeve it on the round rod 5. Insert the bottom frame 4 - 4 into the slot 4 - 1 and install the fixing screw 4 - 7 for fixation. After fixation, the connection ear 4 - 5 can be used for docking.

[0048] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A porous self-locking chain bolt, characterized in that, including a bolt (1) and a connecting member (2), the connecting member (2) being disposed on top of the bolt (1); a docking and locking assembly (3), the docking and locking assembly (3) being disposed between the bolt (1) and the connecting member (2); a connecting and fixing assembly (4), the connecting and fixing assembly (4) being disposed at the bottom of the bolt (1); the docking and locking assembly (3) includes a docking thread groove (3-1), the docking thread groove (3-1) being opened at the bottom of the connecting member (2), an inner layer (3-2) being provided at the top inside the docking thread groove (3-1), side holes (3-3) being opened on both sides inside the docking thread groove (3-1), and a movable block (3-4) being movably sleeved and connected in the side holes (3-3).

2. The porous self-locking chain bolt according to claim 1, wherein, An inner cutting block (3-5) is provided on the side end face of the movable block (3-4), a spring (3-6) is connected between the inner cutting block (3-5) and the inner layer (3-2), a card slot (3-7) is opened on the upper end face of the inner cutting block (3-5), a docking block (3-8) is provided at the upper end of the bolt (1), and the docking block (3-8) is screwed and connected in the docking thread groove (3-1) by thread fit.

3. The porous self-locking chain bolt according to claim 2, characterized in that, The upper end of the docking block (3-8) supports on the surface of the inner cutting block (3-5), an external thread groove (3-9) is opened on the outer surface of the docking block (3-8), an internal thread sleeve (3-10) is screwed and connected in the external thread groove (3-9), and an outer ring groove (3-11) is opened at the bottom of the internal thread sleeve (3-10).

4. A porous self-locking chain bolt according to claim 3, characterized in that, A rotating ring (3-12) is rotatably sleeved and connected in the outer ring groove (3-11), tightening frames (3-13) are rotatably connected to opposite ends of the rotating ring (3-12) through pin shafts, a convex layer (3-14) is provided at the top inside the tightening frames (3-13), and the convex layer (3-14) is inserted into the card slot (3-7).

5. A porous self-locking chain bolt according to claim 1, characterized in that, The connecting and fixing assembly (4) includes a slot (4-1), the slot (4-1) being opened at the bottom of the bolt (1), an internal thread groove (4-2) being opened inside the slot (4-1), a connecting seat (4-3) being inserted and connected in the slot (4-1), and a bottom frame (4-4) being inserted and connected in the connecting seat (4-3).

6. A porous self-locking chain bolt according to claim 5, characterized in that, A pair of connecting ears (4-5) are provided on the surface of the bottom frame (4-4), a connecting groove (4-6) is opened on the bottom surface of the bottom frame (4-4), the connecting groove (4-6) is a through structure, a fixing screw (4-7) is inserted and connected in the connecting groove (4-6), and the upper end of the fixing screw (4-7) is screwed and connected in the internal thread groove (4-2).

7. A porous self-locking chain bolt according to claim 1, characterized in that, A plurality of round rods (5) are provided at the bottom of the connecting member (2), and a loosening prevention sleeve (6) is sleeved and connected on the round rods (5).

8. A porous self-locking chain bolt according to claim 4, characterized in that, The tightening frame (3-13) is integrally in a gate-shaped structure, and the cross sections of the card slot (3-7) and the convex layer (3-14) are in a triangular structure.

9. A porous self-locking chain bolt according to claim 5, characterized in that, The diameter dimension of the bottom of the bottom frame (4-4) is larger than the diameter dimension of the bolt (1).

10. A porous self-locking chain bolt according to claim 2, characterized in that, The side surface of the inner cutting block (3-5) and the upper end of the docking block (3-8) are both inclined structural surfaces.

Images