A connecting device for an open synchronous belt

Abstract

The utility model relates to the technical field of synchronous belt connection, and in particular to a connection device for an open synchronous belt. The utility model provides a connection device for an open synchronous belt. A connection device for an open synchronous belt, comprising a first connection block, a second connection block, a shift block and a twist knob, wherein the first connection block is clamped with the second connection block, the first connection block and the second connection block are both rotatably connected with shift blocks, twist knobs are slidably clamped on both sides of the shift block, the twist knobs are rotatably connected to the first connection block and the second connection block on the same side, the two ends of the synchronous belt are respectively wound into the first connection block and the second connection block, and bypass the shift block, the synchronous belt is evenly spaced with slots, and the upper and lower ends of the shift block are clamped with similar slots on the synchronous belt. The shift block is driven to rotate by rotating the twist knob, and the shift block can shift the synchronous belt to adjust the length of the synchronous belt, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous belt connection, in particular to a connecting device for an open synchronous belt. Background Art

[0002] An open synchronous belt refers to a belt whose two ends are not bonded together. It has a toothed structure with toothed grooves and grooves, which can perform precise positive transmission with the synchronous wheel. The open synchronous belt needs to be connected before use.

[0003] The mechanical joint method in the prior art generally refers to the use of a belt buckle joint. During operation, scissors are used to pry open the fixed teeth on the back of the belt buckle, and the flat end of the belt is inserted into the fixed tooth mouth. The belt is engaged with the buckle head, and the fixed teeth are pressed down to allow the buckle head to bite the belt to complete the connection. Although this method is simple to operate, when the length of the synchronous belt needs to be adjusted, the belt buckle needs to be disassembled and then re-docking and reinstalled. Such multiple operations can easily damage the synchronous belt and even affect the service life of the conveying equipment, which has certain limitations.

[0004] Therefore, it is necessary to design a connecting device for an open synchronous belt. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the utility model provides a connecting device for an open synchronous belt.

[0006] A connecting device for an open synchronous belt, comprising a first connecting block, a second connecting block, a shift block, a twist, a clamping assembly and a limiting assembly, wherein the first connecting block is clamped with the second connecting block, the first connecting block and the second connecting block are both rotatably connected with the shift blocks, the two sides of the shift blocks are slidably clamped with twists, the twists are rotatably connected to the first connecting block and the second connecting block on the same side, the two ends of the synchronous belt are respectively wound into the first connecting block and the second connecting block, and bypass the shift block, the synchronous belt is evenly spaced with slots, the upper and lower ends of the shift block are clamped with similar slots on the synchronous belt, the first connecting block and the second connecting block are provided with a clamping assembly, and the first connecting block and the second connecting block are provided with a limiting assembly for limiting the twist.

[0007] Optionally, the shift block can be rotated and engaged with the card slot to drive the synchronous belt to extend and retract.

[0008] Optionally, the clamping assembly includes a first clamping block, a compression spring and a pull rod, the first connecting block is slidably connected to the upper side of the pull rod, the bottom of the pull rod is connected to the first clamping block, the first clamping block is located inside the first connecting block, a compression spring is connected between the first clamping block and the inside of the first connecting block, the compression spring is sleeved on the pull rod, a limiting groove is opened on the left end of the second connecting block, and the first clamping block is clamped in cooperation with the limiting groove.

[0009] Optionally, the right side wall of the first clamping block is in the shape of an inclined surface, and the left end of the second connecting block slides into the first connecting block and can contact the inclined surface of the first clamping block, so that the first clamping block is clamped in the limiting groove.

[0010] Optionally, the limit assembly includes a connecting spring, a clamping rod, a fixed block, a second clamping block and a return spring. A connecting spring is connected between the twisting block and the shifting block on the same side, the clamping rod is symmetrically connected to the inner side of the twisting block, the first connecting block and the second connecting block are symmetrically connected to the fixed blocks on both sides, the fixed blocks are symmetrically slidably connected to the second clamping blocks, the second clamping block and the inside of the fixed block on the same side are connected with a return spring, the clamping rod is clamped between the two second clamping blocks on the same side, and the outer side of the second clamping block is an inclined surface.

[0011] Optionally, the first connecting block and the upper side connection of the second connecting block are fastened and fixed by bolts and nuts.

[0012] The beneficial effects of the utility model are: 1. The shifting block is driven to rotate by rotating the twist knob, and the shifting block can shift the synchronous belt to adjust the length of the synchronous belt, which is simple and convenient to operate;

[0013] 2. The clamping rod is stuck by the second clamping block, which can limit the turning, so that the turning knob and the shifting block cannot be easily turned, thus achieving a locking effect;

[0014] 3. The first clamping block cooperates with the limiting groove to fix the first connecting block and the second connecting block. When clamping, it is only necessary to push the first connecting block into the second connecting block, and the first clamping block can automatically clamp with the limiting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a cross-sectional view of the first connecting block, the second connecting block, the twist and other components of the utility model.

[0017] Figure 3 It is an exploded view of the first connecting block and the second connecting block of the utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the first clamping block, compression spring, pull rod and other components of the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the utility model connecting the spring, the clamping rod, the fixing block and other components.

[0020] Figure 6 It is a three-dimensional structural schematic diagram of the second clamping block, the return spring, the torsion bar and other components of the utility model.

[0021] Explanation of the reference numerals: 1: synchronous belt, 2: first connecting block, 3: second connecting block, 4: first clamping block, 41: limiting groove, 5: compression spring, 6: pull rod, 7: shift block, 8: twist, 9: clamping slot, 10: connecting spring, 11: clamping rod, 12: fixing block, 13: second clamping block, 14: return spring. DETAILED DESCRIPTION

[0022] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0023] Embodiment: A connecting device for an open synchronous belt, such as Figure 1-Figure 6 As shown, it includes a first connecting block 2, a second connecting block 3, a shift block 7, a twist 8, a clamping assembly and a limiting assembly. The first connecting block 2 is clamped with the second connecting block 3, and the upper connection between the first connecting block 2 and the second connecting block 3 is tightened and fixed by bolts and nuts. The first connecting block 2 and the second connecting block 3 are both rotatably connected with the shift block 7, and the front and rear sides of the shift block 7 are both slidably clamped with the twist 8. The twist 8 is rotatably connected to the first connecting block 2 and the second connecting block 3 on the same side. The two ends of the synchronous belt 1 are respectively wound into the first connecting block 2 and the second connecting block 3 and bypass the shift block 7. The synchronous belt 1 is evenly spaced with slots 9. The upper and lower ends of the shift block 7 are clamped with the slots 9 similar to the synchronous belt 1. The shift block 7 rotates and clamps with the slots 9 to drive the synchronous belt 1 to extend and retract. The first connecting block 2 and the second connecting block 3 are provided with a clamping assembly, and the first connecting block 2 and the second connecting block 3 are provided with a limiting assembly for limiting the twist 8.

[0024] like Figure 1 , Figure 3 and Figure 4 As shown, the clamping assembly includes a first clamping block 4, a compression spring 5 and a pull rod 6. The pull rod 6 is slidably connected to the upper side of the first connecting block 2, and the first clamping block 4 is welded to the bottom of the pull rod 6. The first clamping block 4 is located inside the first connecting block 2, and a compression spring 5 is connected between the first clamping block 4 and the inside of the first connecting block 2. The compression spring 5 is sleeved on the pull rod 6. A limiting groove 41 is opened at the left end of the second connecting block 3, and the first clamping block 4 is clamped and matched with the limiting groove 41. The right side wall of the first clamping block 4 is in the shape of an inclined surface. The left end of the second connecting block 3 slides into the first connecting block 2 and can contact the inclined surface of the first clamping block 4, so that the first clamping block 4 is clamped in the limiting groove 41.

[0025] like Figure 5-Figure 6As shown, the limit assembly includes a connecting spring 10, a clamping rod 11, a fixed block 12, a second clamping block 13 and a reset spring 14. The connecting spring 10 is connected between the twist 8 and the shift block 7 on the same side. The clamping rod 11 is welded symmetrically on the inner side of the twist 8. The first connecting block 2 and the second connecting block 3 are symmetrically connected to the fixed blocks 12 on both the front and rear sides. The fixed blocks 12 are symmetrically slidably connected to the second clamping blocks 13 on the left and right. The reset spring 14 is connected between the second clamping block 13 and the inside of the fixed block 12 on the same side. The clamping rod 11 is clamped between the two second clamping blocks 13 on the same side. The outer side of the second clamping block 13 is an inclined surface. When the clamping rod 11 is not clamped between the two second clamping blocks 13, the rotation of the clamping rod 11 can push the inclined surface of the second clamping block 13 to assist the clamping rod 11 in resetting.

[0026] When in use, the synchronous belt 1 is connected at both ends through the first connecting block 2 and the second connecting block 3 to form a ring, and the two ends of the synchronous belt 1 are respectively wound into the first connecting block 2 and the second connecting block 3, and the synchronous belt 1 bypasses the shift block 7, and the shift block 7 is engaged with the card slot 9 on the synchronous belt 1. When connecting the first connecting block 2 and the second connecting block 3, the first connecting block 2 and the second connecting block 3 can be brought close to each other, and the second connecting block 3 can be inserted into the first connecting block 2. When the second connecting block 3 contacts the inclined surface of the first card block 4, the first card block 4 will be pushed to move upward, driving the pull rod 6 to move upward, and the compression spring 5 will be compressed. When the limiting groove 41 on the second connecting block 3 is aligned with the first card block 4, the first card block 4 will be driven by the reset action of the compression spring 5. When the pull rod 6 moves downward, the first clamping block 4 is clamped with the limiting groove 41, thereby fixing the first connecting block 2 and the second connecting block 3. Bolts and nuts can also be used to reinforce the first connecting block 2 and the second connecting block 3. When it is necessary to disassemble the first connecting block 2 and the second connecting block 3, first remove the bolts and nuts, and then pull the pull rod 6 upward to drive the first clamping block 4 to move upward, the compression spring 5 is compressed, and the first clamping block 4 is loosened from the limiting groove 41, so that the second connecting block 3 can be separated from the first connecting block 2. After separation, release the pull rod 6 to reset the compression spring 5, drive the pull rod 6 and the first clamping block 4 to move downward and reset, and the second clamping block 13 limits the clamping rod 11, so that the twisting block 8 and the shifting block 7 cannot rotate, and the synchronous belt 1 is limited and will not move easily. When adjusting the length of the synchronous belt 1, the knob 8 can be pressed inwardly first to compress the connecting spring 10. The knob 8 drives the clamping rod 11 to move inwardly, so that the clamping rod 11 is out of contact with the second clamping block 13. Then, the knob 8 can be rotated synchronously to drive the clamping rod 11 and the shifting block 7 to rotate. The rotation of the shifting block 7 will shift the synchronous belt 1 through the slot 9 to move the synchronous belt 1, so that the synchronous belt 1 is pushed out through the first connecting block 2 and the second connecting block 3, and the length of the synchronous belt 1 is extended. By rotating the knob 8 in the opposite direction, the shifting block 7 can be reversed to push the synchronous belt 1 inwardly into the first connecting block 2 and the second connecting block 3, so that the length of the synchronous belt 1 is shortened. After the synchronous belt 1 is adjusted to a suitable length, the knob 8 is released so that the knob 8 drives the clamping rod 11 outward under the resetting action of the connecting spring 10. When the lever 11 is moved, the clamping rod 11 will be stuck in the two second clamping blocks 13 on the same side, and the second clamping blocks 13 will limit the lever 11, so that the twist 8 and the lever 11 cannot rotate. If the lever 11 is not aligned with the second clamping block 13 when the twist 8 is released, and the lever 11 is not stuck on the second clamping block 13, the twist 8 can be slightly turned to drive the lever 11 to rotate, so that the lever 11 contacts the inclined surface of the second clamping block 13, and the lever 11 will push the second clamping block 13 to move outward to compress the reset spring 14. After the lever 11 passes over the second clamping block 13, the second clamping block 13 will move inward and reset under the reset action of the reset spring 14, so that the lever 11 can be smoothly clamped between the second clamping blocks 13 on the same side, thereby completing the adjustment of the synchronous belt 1.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting device for an open synchronous belt, characterized in that: The invention comprises a first connecting block (2), a second connecting block (3), a shifting block (7), a twisting block (8), a clamping assembly and a limiting assembly. The first connecting block (2) and the second connecting block (3) are clamped together. The first connecting block (2) and the second connecting block (3) are both rotatably connected with the shifting blocks (7). The two sides of the shifting blocks (7) are both slidably clamped with twisting blocks (8). The twisting blocks (8) are rotatably connected to the first connecting block (2) and the second connecting block (3) on the same side. The two ends of the synchronous belt (1) are respectively wound into the first connecting block (2) and the second connecting block (3) and bypass the shifting block (7). The synchronous belt (1) is provided with clamping grooves (9) evenly spaced apart. The upper and lower ends of the shifting block (7) are clamped with the adjacent clamping grooves (9) on the synchronous belt (1). The first connecting block (2) and the second connecting block (3) are provided with clamping assemblies. The first connecting block (2) and the second connecting block (3) are provided with limiting assemblies for limiting the twisting block (8).

2. The connecting device of an open synchronous belt according to claim 1, characterized in that: The shifting block (7) rotates and engages with the clamping groove (9), thereby shifting the synchronous belt (1) to extend and retract.

3. The connecting device of an open synchronous belt according to claim 1, characterized in that: The clamping assembly comprises a first clamping block (4), a compression spring (5) and a pull rod (6); the first connecting block (2) is slidably connected to the pull rod (6) on the upper side; the first clamping block (4) is connected to the bottom of the pull rod (6); the first clamping block (4) is located inside the first connecting block (2); a compression spring (5) is connected between the first clamping block (4) and the inside of the first connecting block (2); the compression spring (5) is sleeved on the pull rod (6); a limiting groove (41) is provided at the left end of the second connecting block (3); the first clamping block (4) is clamped and matched with the limiting groove (41).

4. The connecting device of an open synchronous belt according to claim 3, characterized in that: The right side wall of the first clamping block (4) is in the shape of an inclined surface, and the left end of the second connecting block (3) slides into the first connecting block (2) and can contact the inclined surface of the first clamping block (4), so that the first clamping block (4) is clamped in the limiting groove (41).

5. The connecting device of an open synchronous belt according to claim 1, characterized in that: The limit assembly comprises a connecting spring (10), a clamping rod (11), a fixed block (12), a second clamping block (13) and a return spring (14); the connecting spring (10) is connected between the turning knob (8) and the shifting block (7) on the same side; the clamping rod (11) is symmetrically connected to the inner side of the turning knob; the first connecting block (2) and the second connecting block (3) are symmetrically connected to the fixed blocks (12) on both sides; the fixed blocks (12) are symmetrically slidably connected to the second clamping blocks (13); the second clamping blocks (13) are connected to the inside of the fixed blocks (12) on the same side by a return spring (14); the clamping rod (11) is clamped between the two second clamping blocks (13) on the same side; the outer side of the second clamping block (13) is an inclined surface.

6. The connecting device of an open synchronous belt according to claim 1, characterized in that: The upper connection between the first connection block (2) and the second connection block (3) is fixed by tightening with bolts and nuts.

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