Auxiliary tool for installing chain joint

Abstract

The utility model provides an auxiliary tool for installing a chain joint, which solves the problem that the mode of manually pulling a chain to form a chain ring is time-consuming and labor-consuming, and adopts the main scheme that the auxiliary tool comprises a guide square tube, a fixed drag hook, a movable drag hook and an adjusting screw rod, the two ends of the guide square tube are sealed, and through sliding chutes are formed in the two axial sides of the guide square tube; one end of the adjusting screw rod is in threaded connection with the sealed end of the guide square pipe, the other end of the adjusting screw rod is embedded in the guide square pipe, a sliding block is fixed to the corresponding tail end of the adjusting screw rod, sliding rods are fixed to the two ends of the sliding block, the sliding block is in sliding connection with the sliding grooves through the sliding rods, and a fixing block is further fixed to the end, away from the adjusting screw rod, of the guide square pipe; the fixed drag hook and the movable drag hook are correspondingly fixed to the bottom of the fixed block and the bottom of the sliding block respectively, the fixed drag hook and the movable drag hook are consistent in structure and arranged oppositely, and inserting grooves corresponding to external chains are formed in the bottom ends of the fixed drag hook and the movable drag hook.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics and transportation, in particular to a chain joint installation auxiliary tooling. Background Art

[0002] Chains are often used in the drive components of logistics conveying equipment to transmit power. In some mechanical structures where chain tensioning is not possible and the chain needs to be installed tightly, the chain length and the droop caused by gravity during installation make it difficult to connect the chain loops after the chain engages the sprocket. This requires the operator to pull the chain firmly to engage the sprocket while rotating the sprocket to gradually increase the degree of engagement between the sprocket and the loop, slowly connecting the two ends of the chain with the joint links. This operation is time-consuming and labor-intensive, and requires the operator to be experienced, which can cause certain difficulties in equipment installation and subsequent chain replacement and maintenance.

[0003] To this end, we propose a chain joint installation auxiliary tooling to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the existing technology. The utility model proposes a chain joint installation auxiliary tooling with simple structure, high efficiency, easy to carry, low manufacturing difficulty and low manufacturing cost.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a chain joint installation auxiliary tooling, including: a guide square tube, a fixed hook, a movable hook and an adjusting screw. The two ends of the guide square tube are sealed, and a through-type slide groove is opened on both sides of its axial direction. One end of the adjusting screw is threadedly connected to the sealed end of the guide square tube, and the other end is embedded in the guide square tube and a slider is fixed at the corresponding end. Slide rods are fixed at both ends of the slider and are slidably connected to the slide groove through the slide rod. The guide square tube is also fixed with a fixed block at the end away from the adjusting screw. The bottom of the fixed block and the bottom of the slider are respectively fixed with the fixed hook and the movable hook. The fixed hook and the movable hook have the same structure and are arranged opposite to each other, and their bottom ends are both provided with slots corresponding to the external chain.

[0006] Furthermore, the movable hook includes a fixed part, an outer protrusion and a clamping part from top to bottom. The fixed part is a cube and is fitted into a whole with the corresponding bottom surface structure of the slider. The outer protrusion has a flange on one side relative to the fixed hook, and the other side is an inclined surface inclined in the direction close to the fixed hook. The slot is recessed at the bottom end of the clamping part. The bottom end of the clamping part can pass through the external chain, and the side corresponding to the flange is a smooth arc surface.

[0007] Furthermore, the slope has an inclination of 15°.

[0008] Furthermore, the top edge of the bottom end of the engaging portion in contact with the chain is chamfered, and the top edge can bypass the corresponding axis of the chain pin of any external chain section under the action of the smooth arc surface.

[0009] Furthermore, both ends of the slide groove are chamfered to fit with the slide rod.

[0010] Furthermore, both ends of the fixed block and both ends of the sliding rod are fixed and limited by fixing nuts, gaskets and guide square tubes.

[0011] Furthermore, the wheelbase range of the fixing nuts corresponding to the fixing block and the sliding rod is between 15 mm and 110 mm.

[0012] Furthermore, a detachable inspection plate is provided on the top of the guide square tube corresponding to the fixing block.

[0013] Furthermore, the length of the adjusting screw corresponds to the length of the sliding groove, and a rotary table is fixed to the exposed end thereof.

[0014] Compared with the prior art, the beneficial effects of the present invention include: adjusting and shrinking the distance between the two hooks by adjusting the bolts, so that the two ends of the chain are shrunk to a connectable state, so that the chain can be quickly connected with the joint links, which saves time and effort, does not require high operating personnel, and greatly reduces labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0016] Figure 1 The figure schematically shows the overall structure of the tooling proposed according to one embodiment of the present utility model;

[0017] Figure 2 Schematically shows a front view of a tooling proposed according to one embodiment of the present utility model;

[0018] Figure 3 The figure schematically shows a top view of a tooling provided according to one embodiment of the present invention.

[0019] Numbers in the figure: 1. Guide square tube; 2. Fixed hook; 3. Movable hook; 4. Adjusting screw; 5. Slide groove; 6. Slider; 7. Slide rod; 8. Fixed block; 9. Slot; 10. Fixed part; 11. Outer protrusion; 12. Engaging part; 13. Flange; 14. Inclined surface; 15. Smooth arc surface; 16. Fixed nut; 17. Gasket; 18. Inspection plate; 19. Turntable. DETAILED DESCRIPTION

[0020] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural methods and implementation methods. Therefore, the following specific embodiments and drawings are only illustrative of the technical solution of the present invention and should not be regarded as the entire present invention or as a limitation or restriction of the technical solution of the present invention.

[0021] According to one embodiment of the present invention, Figure 1-Figure 3 Shown.

[0022] like Figure 1 As shown, in this embodiment, for the overall structure, a chain joint installation auxiliary tooling includes: a guide square tube 1, a fixed hook 2, a movable hook 3 and an adjusting screw 4. The two ends of the guide square tube 1 are sealed, and a through-type slide groove 5 is opened on both sides of its axial direction. One end of the adjusting screw 4 is threadedly connected to the sealed end of the guide square tube 1, and the other end is embedded in the guide square tube 1 and a slider 6 is fixed to the corresponding end. Slide rods 7 are fixed at both ends of the slider 6 and are slidably connected to the slide groove 5 through the slide rod 7. The guide square tube 1 is also fixed with a fixed block 8 at the end away from the adjusting screw 4. The bottom of the fixed block and the bottom of the slider 6 are respectively fixed to the fixed hook 2 and the movable hook 3. The fixed hook 2 and the movable hook 3 have the same structure and are arranged opposite to each other. The bottom ends of the fixed hooks 2 and 3 are both provided with slots 9 corresponding to the external chain.

[0023] Furthermore, both ends of the chute 5 are chamfered to mate with the slide rod 7. Both ends of the fixing block 8 and the slide rod 7 are secured to the guide square tube 1 via fixing nuts 16 and washers 17. The wheelbase between the fixing nuts 16 of the fixing block 8 and the slide rod 7 is between 15 mm and 110 mm.

[0024] Through the above structure, when the time chain is installed, the fixed hook 2 and the movable hook 3 can be correspondingly embedded and clamped to the two chains to be connected, and then the adjusting screw 4 can be rotated to drive the slide bar 7 on the slider 6 to slide in the slide groove 5, so that the fixed hook 2 and the movable hook 3 are relatively close to or away from each other. After the movable hook 3 slides to the taut state of the chain, it is fixed and limited by the fixing nut 16, the gasket 17 and the guide square tube 1. At this time, there is no need to manually pull the chain, and the subsequent chain docking operation can be carried out through the handheld tooling or the fixed tooling itself.

[0025] like Figure 2As shown, with regard to the specific structure of the fixed hook 2 and the movable hook 3, the movable hook 3 includes a fixed portion 10, an outer protrusion 11 and a clamping portion 12 from top to bottom. The fixed portion 10 is a cube and is fitted into a whole with the corresponding structure of the bottom surface of the slider 6. The outer protrusion 11 has a flange 13 on one side relative to the fixed hook 2, and an inclined surface 14 inclined in the direction close to the fixed hook 2 on the other side. The slot 9 is recessed at the bottom end of the clamping portion 12. The bottom end of the clamping portion 12 can pass through the external chain, and the side corresponding to the flange 13 is a smooth arc surface 15.

[0026] Furthermore, the slope 14 has an inclination of 15 degrees. The top edge of the bottom end of the engaging portion 12 in contact with the chain is chamfered, and the top edge can bypass the corresponding axis of any chain pin of the outer chain section under the action of the smooth arc surface 15.

[0027] In order to ensure the stable clamping of the fixed hook 2 and the movable hook 3, taking the movable hook 3 as an example, this solution makes further requirements for its own structure. The fixed part 10 can be fixed to the corresponding slider 6 as a whole, which is more secure. The flange 13 on the outer protrusion 11 can ensure that the hook itself is strong enough and is more secure when clamping and tightening the chain. The slot 9 of the clamping part 12 can be correspondingly embedded in the pin on the chain, and the gripping force is stronger. The design of the inclined surface 14 and the smooth arc surface 15 ensures that the end of the slot 9 can be wound around and clamp the pin on the chain, which further facilitates subsequent chain tightening.

[0028] Similarly, if Figure 3 As shown, this solution also features a removable access plate 18 on the top of the guide square tube 1, corresponding to the fixed block 8. The length of the adjustment screw 4 corresponds to the length of the chute 5, and a rotary table 19 is fixed to its exposed end. The access plate 18 facilitates tooling installation and subsequent inspection of the inner cavity, while the rotary table 19 allows the operator to easily grip and rotate the adjustment screw 4, saving effort.

[0029] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the scope of protection of the present invention.

Claims

1. A chain joint installation auxiliary tool, characterized in that: include: A guide square tube, a fixed hook, a movable hook and an adjusting screw. The two ends of the guide square tube are sealed, and a through-type slide groove is opened on both axial sides thereof. One end of the adjusting screw is threadedly connected to the sealed end of the guide square tube, and the other end is embedded in the guide square tube and a slider is fixed at the corresponding end. Slide rods are fixed at both ends of the slider and are slidably connected to the slide groove through the slide rod. The guide square tube is also fixed with a fixed block at the end away from the adjusting screw. The bottom of the fixed block and the bottom of the slider are respectively fixed with the fixed hook and the movable hook. The fixed hook and the movable hook have the same structure and are arranged opposite to each other, and their bottom ends are provided with slots corresponding to the external chain.

2. The chain joint installation auxiliary tool according to claim 1, characterized in that: The movable hook includes a fixed part, an outer protrusion and a clamping part from top to bottom. The fixed part is a cube and is fitted into a whole with the corresponding bottom surface structure of the slider. The outer protrusion has a flange on one side relative to the fixed hook, and the other side is an inclined surface inclined in the direction close to the fixed hook. The slot is recessed at the bottom end of the clamping part. The bottom end of the clamping part can pass through the external chain, and its side corresponding to the flange is a smooth arc surface.

3. The chain joint installation auxiliary tool according to claim 2, characterized in that: The slope has an inclination of 15°.

4. The chain joint installation auxiliary tool according to claim 2, characterized in that: The top edge of the bottom end of the engaging portion in contact with the chain is chamfered, and the top edge can bypass the corresponding axis of the chain pin of any external chain section under the action of the smooth arc surface.

5. The chain joint installation auxiliary tool according to claim 1, characterized in that: Both ends of the slide groove are chamfered to fit with the slide rod.

6. The chain joint installation auxiliary tool according to claim 1, characterized in that: Both ends of the fixed block and both ends of the sliding rod are fixed and limited by fixing nuts, gaskets and guide square tubes.

7. The chain joint installation auxiliary tool according to claim 4, characterized in that: The wheelbase range of the fixing nuts corresponding to the fixing block and the sliding rod is between 15 mm and 110 mm.

8. The chain joint installation auxiliary tool according to claim 1, characterized in that: A detachable inspection plate is provided on the top of the guide square tube at a position corresponding to the fixing block.

9. The chain joint installation auxiliary tool according to claim 1, characterized in that: The length of the adjusting screw corresponds to the length of the sliding groove, and a rotary table is fixed on the exposed end of the adjusting screw.

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