A crown block small box fixture anti-falling device

Abstract

The utility model relates to a small box fixture technical field discloses a crown block small box fixture anti -drop device, including twist head subassembly and anti -drop subassembly, twist head subassembly includes mounting seat and sleeve head, and the both ends of fixed seat all are provided with the clamping groove, and the clamping groove with clamping shaft between is equipped with fixed subassembly, and fixed subassembly can hold the end of clamping shaft, and anti -drop subassembly includes first hinged portion, second hinged portion and drive part, and first hinged portion locates one end of mounting seat, and second hinged portion locates one end of first hinged portion, and drive part is hingedly installed one end of first hinged portion, and the output of drive part is hinged with second hinged portion, and drive part promotes second hinged portion to rotate in first hinged portion, and when second hinged portion rotates to horizontal to the small box fixture is lifted, and through fixed subassembly holds the end of clamping shaft, realizes the double anti -drop of small box fixture, avoids single anti -drop structure failure and leads to small box fixture to fall off, and further improves the security of small box fixture anti -drop device.

Description

Technical Field

[0001] This utility model relates to the field of small box clamp technology, specifically to an anti-detachment device for a crane small box clamp. Background Technology

[0002] In modern aluminum electrolysis production, the small box clamp is a key component for fastening the anode guide rod. Its core function is to stably fix the anode guide rod to the busbar frame hook seat in the plant. Existing technology discloses (Publication No.: CN207121646U) an anode busbar small box clamp, which includes two clamping assemblies, a clamping shaft, and a control screw. The clamping assemblies rotate in opposite directions around the clamping shaft. Each clamping assembly includes a clamping rod and two clamping arms. The clamping rod is rotatably disposed between the two clamping arms. At the first end, the clamping shaft passes through the second end of the clamping arm. The control screws pass through the clamping rods and are threaded into them respectively. The first end of the clamping shaft is provided with a first groove, and a first retaining spring is provided in the first groove. The first sleeve is sleeved on the clamping shaft and is located between the first retaining spring and the clamping arm. By providing sleeves at both ends of the clamping shaft, direct contact between the clamping shaft and the hook is avoided, preventing the phenomenon of discharge and arcing. This effectively solves the problem of deformation and twisting of the clamping shaft, reduces maintenance costs, and improves the reliability of operation.

[0003] During electrolysis, the anode rod is gradually consumed by the continuous electrochemical reaction. When the consumption reaches a preset threshold, a new anode must be replaced to ensure continuous and efficient production. However, during the transfer process, frequent tightening and loosening and transfer of the small box clamps can lead to accidents caused by the small box clamps falling and injuring people due to wear, processing defects, or vehicle vibration. This seriously endangers the personal safety of the workers. To address this problem, we have proposed an anti-detachment device for the overhead crane small box clamps. Utility Model Content

[0004] The present invention aims to provide a device to prevent the detachment of the overhead crane's small box clamp, in order to solve the problem of falling and injuring people caused by the small box clamp not being securely fixed during pole changing operations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a crane small box clamp anti-detachment device, comprising a twisting head assembly and an anti-detachment component disposed on the twisting head assembly. The twisting head assembly includes a mounting base and a sleeve rotatably mounted between the mounting base. The sleeve can engage with the lead screw of the small box clamp and drive the lead screw to rotate. Both ends of the fixed base are provided with slots that engage with the end of the clamping shaft of the small box clamp. A fixing component is provided between the slot and the clamping shaft. The fixing component can clamp the end of the clamping shaft. The anti-detachment component includes a first hinge part, a second hinge part, and a driving member. The first hinge part is disposed at the end of the mounting base away from the anode guide rod. The second hinge part is hingedly mounted at the end of the first hinge part. The driving member is hingedly mounted at the end of the first hinge part away from the mounting base, and the output end of the driving member is hinged to the second hinge part. The driving member pushes the second hinge part to rotate in the first hinge part. When the second hinge part rotates to a horizontal position, it lifts the small box clamp.

[0006] The beneficial effects of this solution are as follows: the second hinge part is driven to rotate within the first hinge part by the driving component. When the second hinge part rotates to a horizontal position and is located below the small box clamp, it can lift the unlocked small box clamp and, together with the slot, limit the left and right offset and sway of the small box clamp, thereby improving the stability of the small box clamp during movement. At the same time, the end of the clamping shaft is clamped by the fixing component, realizing double anti-disengagement of the small box clamp, avoiding the failure of a single anti-disengagement structure that would cause the small box clamp to fall off, and further improving the safety of the small box clamp anti-disengagement device.

[0007] Preferably, as an improvement, the mounting base is U-shaped, and the opposite ends of the mounting base are provided with abutment blocks, and the small box clamp can abut against the abutment blocks.

[0008] The beneficial effects are as follows: With frequent engagement between the card slot and the clamping shaft, wear occurs on the inner wall of the card slot, resulting in a certain gap between the clamping shaft and the inner wall of the card slot. This causes the clamping shaft to frequently collide and wear against the inner wall of the card slot during start-up and shutdown, reducing the service life of the clamping shaft. In this solution, the clamping of the small box clamp by the abutment block and the second hinge part prevents the small box clamp from shaking during start-up and shutdown, thereby reducing the wear between the clamping shaft and the inner wall of the card slot and improving the service life of the clamping shaft.

[0009] Preferably, as an improvement, the driving component is set to any one of an electric push rod, a hydraulic telescopic rod, or a pneumatic telescopic rod.

[0010] Preferably, as an improvement, each set of fixing components includes a lifting rod, two locking rods, and clamping blocks. The fixing base is symmetrically provided with rotating grooves that communicate with the slots. Each rotating groove is provided with a support rod. The two clamping blocks are rotatably installed on the outer wall of the corresponding support rod. Each clamping block is provided with a first reset member between it and the inner wall of the rotating groove. The fixing base is provided with a lifting groove. The lifting rod is slidably installed in the lifting groove. A vertical connecting groove is provided between the lifting groove and the two rotating grooves. The two locking rods are symmetrically provided at the ends of the locking rods near the slots, and the two locking rods are respectively located in the corresponding lifting grooves. The lifting rod and the inner wall of the lifting groove are provided with several second reset members. Each clamping block is provided with a locking groove at the end near the lifting rod. Both locking rods can be inserted into the corresponding locking groove. A through hole is provided between the lifting groove and the slot. An unlocking block is provided at the end of the lifting rod near the slot, and the unlocking block is located in the through hole and can abut against the outer wall of the clamping shaft.

[0011] Preferably, as an improvement, the clamping block is configured as C-shaped and includes a trigger part, a vertical part and an abutment part. The trigger part and the abutment part are located at the two ends of the vertical part, respectively. The cross-section of the trigger part is triangular and the inclined surface of the trigger part contacts the clamping shaft. The cross-section of the abutment part is arc-shaped and the end of the abutment part is rounded. The end of the abutment part can contact the outer wall of the clamping shaft.

[0012] The beneficial effects are as follows: During the process of the clamping shaft end entering the slot, the clamping shaft contacts the trigger part of the clamping block, causing the vertical part of the clamping block to rotate around the support rod. This causes the abutment part of the clamping block to rotate into the slot. During the rotation of the clamping block, the locking rod is inserted into the locking groove under the action of the second reset member, thereby fixing the clamping block. The fixed abutment part then supports the clamping shaft, preventing it from falling out of the slot and improving the safety of the small box clamp during transportation. When the small box clamp is aligned with the hook seat, the clamping shaft first abuts against the hook seat, and as the mounting base further descends, the clamping shaft... The clamping shaft separates from the abutting part of the clamping block until the clamping shaft abuts against the unlocking block, thereby causing the lifting rod to rise in the lifting groove, which in turn causes the locking rod to exit the locking groove. Under the action of the first reset member, the clamping block rotates, causing the triggering part of the clamping block to rotate into the slot, and the abutting part of the clamping block to rotate into the rotating groove. Then the mounting base rises, the clamping shaft contacts the triggering part, and the entire clamping block rotates into the rotating groove, thereby causing the clamping shaft to exit the slot. Finally, under the action of the first reset member, the clamping block rotates, causing the triggering part to rotate back into the slot, facilitating the clamping of the small box clamp for the next time.

[0013] Preferably, as an improvement, the first reset element is a torsion spring, and each first reset element is respectively sleeved on the outer wall of the corresponding support rod.

[0014] Preferably, as an improvement, the second reset element is configured as a tension spring, and each second reset element is respectively sleeved on the outer wall of the corresponding locking rod. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the anti-detachment device for the small box clamp in an embodiment of this utility model; Figure 2 This is a cross-sectional view of the mounting base according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the structure of the fixing component supporting the clamping shaft in an embodiment of this utility model; Figure 4 This is a structural schematic diagram of the fixed component in the unlocked state according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the clamping shaft exiting the slot according to an embodiment of the present invention. Detailed Implementation

[0016] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: mounting base 1, sleeve head 2, small box clamp 3, lead screw 4, clamping shaft 5, slot 6, rotating slot 7, support rod 8, trigger part 9, vertical part 10, abutment part 11, first reset part 12, lifting slot 13, lifting rod 14, connecting slot 15, second reset part 16, locking slot 17, unlocking block 18, first hinge part 19, second hinge part 20, driving part 21, anode guide rod 22, hook seat 23, abutment block 24, locking rod 25.

[0017] Example The basic implementation examples are as follows: Figures 1-5 As shown, Figure 1 The overhead crane small box clamp anti-detachment device shown includes a twisting head assembly and an anti-detachment component disposed at the front end of the twisting head assembly. The twisting head assembly includes a mounting base 1 and a sleeve 2 rotatably mounted between the mounting bases 1. The sleeve 2 can engage with the lead screw 4 of the small box clamp 3 and drive the lead screw 4 to rotate. The mounting base 1 is U-shaped, and an abutment block 24 is fixedly installed between the mounting bases 1. The upper end of the small box clamp 3 can abut against the abutment block 24. The lower ends of both sides of the fixed base are provided with slots 6 that engage with the ends of the clamping shaft 5 of the small box clamp 3. Fixing components are provided between the slots 6 and the clamping shaft 5, and the fixing components can clamp the ends of the clamping shaft 5. Figure 2The fixing assembly shown includes a lifting rod 14, two locking rods 25, and clamping blocks. The fixing base has symmetrically arranged rotating grooves 7 on both sides, communicating with the slots 6. Each rotating groove 7 has a support rod 8 fixedly installed within it. The two clamping blocks are rotatably mounted on the outer wall of their respective support rods 8. Each clamping block is C-shaped and includes a trigger part 9, a vertical part 10, and an abutment part 11. The trigger part 9 and the abutment part 11 are located at opposite ends of the vertical part 10. The trigger part 9 has a triangular cross-section, and its inclined surface contacts the clamping shaft 5. The abutment part 11 has an arc-shaped cross-section, and its end is rounded, allowing it to contact the outer wall of the clamping shaft 5. Each clamping block has a first reset element 12 between its end and the inner wall of the rotating groove 7. The first reset element 12 is a torsion spring, and each first reset element 12 is sleeved on the outer wall of its corresponding support rod 8. The fixing base has a lifting groove 13, and the lifting rod 14... 4. Sliding installation in the lifting groove 13. The lifting groove 13 and the two rotating grooves 7 are vertically connected by a connecting groove 15. Two locking rods 25 are symmetrically fixed on the left and right sides of the lower end of the locking rods 25, and the two locking rods 25 are slidably installed in the corresponding lifting grooves 13. The lower end of each locking rod 25 is rounded. The lifting rod 14 and the inner wall of the lifting groove 13 are provided with several second reset pieces 16. In this embodiment, there are two second reset pieces 16. The second reset pieces 16 are tension springs, and each second reset piece 16 is sleeved on the outer wall of the corresponding locking rod 25. The upper end of the two clamping blocks is provided with a locking groove 17. Both locking rods 25 can be inserted into the corresponding locking groove 17. A through hole is provided between the upper end of the lifting groove 13 and the slot 6. An unlocking block 18 is fixedly installed in the middle of the lower end of the lifting rod 14. The unlocking block 18 is located in the through hole, and the lower end of the unlocking block 18 extends into the slot 6 and can abut against the outer wall of the clamping shaft 5.

[0018] like Figure 1 The anti-detachment assembly shown includes a first hinge part 19, a second hinge part 20, and a drive member 21. The first hinge part 19 is fixedly installed on the front end of the mounting base 1 and is T-shaped. The second hinge part 20 is hingedly installed on the lower end of the first hinge part 19. The drive member 21 is hingedly installed on the front end of the first hinge part 19, and the output end of the drive member 21 is hinged to the front end of the second hinge part 20. The drive member 21 can push the second hinge part 20 to rotate in the first hinge part 19. The drive member 21 is any one of an electric push rod, a hydraulic telescopic rod, or a pneumatic telescopic rod. When the second hinge part 20 rotates to a horizontal position, it lifts the small box clamp 3.

[0019] The specific implementation process is as follows: The mounting base 1 is lowered so that the slot 6 is aligned with the clamping shaft 5. During the process of the clamping shaft 5 entering the slot 6, as... Figure 3The clamping shaft 5, as shown, contacts the inclined surface of the trigger part 9 of the clamping block, causing the vertical part 10 of the clamping block to rotate around the support rod 8. This causes the abutment part 11 of the clamping block to rotate into the slot 6. During the rotation of the clamping block, the locking rod 25 is inserted into the locking groove 17 under the action of the second reset member 16, thereby fixing the clamping block. The fixed abutment part 11 then supports the clamping shaft 5, preventing the clamping shaft 5 from falling out of the slot 6 and improving the safety of the small box clamp 3 during transportation. At this time, the sleeve 2 and the small box... The screw 4 of the clamp 3 is connected to the first hinge 19 and driven by the drive member 21 to rotate the second hinge part 20. At the same time, the rotating sleeve 2 unlocks the small box clamp 3. When the second hinge part 20 rotates to the horizontal position and is below the small box clamp 3, it can lift the unlocked small box clamp 3 and clamp the end of the clamping shaft 5 through the fixing component, so as to achieve double anti-disengagement of the small box clamp 3, avoid the failure of a single anti-disengagement structure and the resulting drop of the small box clamp 3, and further improve the safety of the anti-disengagement device of the small box clamp 3.

[0020] When the small box clamp 3, after the pole change is completed, needs to be aligned with the hook seat 23, the clamping shaft 5 first abuts against the hook seat 23. Then, the driving component 21 drives the second hinge part 20 to separate from the small box clamp 3. As the mounting base 1 further descends, as... Figure 4 The clamping shaft 5 is separated from the abutment part 11 of the clamping block until the clamping shaft 5 abuts against the unlocking block 18, thereby causing the lifting rod 14 to rise in the lifting groove 13, and then causing the locking rod 25 to exit the locking groove 17, so that the clamping block rotates under the action of the first reset member 12, causing the trigger part 9 of the clamping block to rotate into the slot 6, and the abutment part 11 of the clamping block to rotate into the rotating groove 7. At this time, the sleeve head 2 rotates to fix the small box clamp 3 to the anode guide rod 22, and then the mounting base 1 rises, as shown. Figure 5 The clamping shaft 5 contacts the trigger part 9 and rotates the entire clamping block into the rotating groove 7, thereby causing the clamping shaft 5 to exit the slot 6. Finally, the clamping block rotates under the action of the first reset member 12, causing the trigger part 9 to rotate back into the slot 6, which facilitates the clamping of the small box clamp 3 for the next time.

[0021] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for preventing the detachment of a crane box clamp, characterized in that: The device includes a torsion head assembly and an anti-detachment assembly mounted on the torsion head assembly. The torsion head assembly includes a mounting base and a sleeve rotatably mounted between the mounting base. The sleeve can engage with the lead screw of the small box clamp and drive the lead screw to rotate. Both ends of the mounting base have slots that engage with the end of the clamping shaft of the small box clamp. A fixing assembly is provided between the slot and the clamping shaft to clamp the end of the clamping shaft. The anti-detachment assembly includes a first hinge part, a second hinge part, and a driving member. The first hinge part is located at the end of the mounting base away from the anode guide rod. The second hinge part is hingedly mounted at the end of the first hinge part. The driving member is hingedly mounted at the end of the first hinge part away from the mounting base, and the output end of the driving member is hinged to the second hinge part. The driving member pushes the second hinge part to rotate in the first hinge part. When the second hinge part rotates to a horizontal position, it lifts the small box clamp.

2. The anti-detachment device for the overhead crane small box clamp according to claim 1, characterized in that: The mounting base is U-shaped, and the opposite ends of the mounting base are provided with abutment blocks, which the small box clamp can abut against the abutment blocks.

3. The anti-detachment device for the overhead crane small box clamp according to claim 2, characterized in that: The drive component can be any one of an electric push rod, a hydraulic telescopic rod, or a pneumatic telescopic rod.

4. The anti-detachment device for the overhead crane small box clamp according to claim 3, characterized in that: Each set of fixing components includes a lifting rod, two locking rods, and clamping blocks. The fixing base has symmetrically opened rotating grooves that communicate with the slots. Each rotating groove has a support rod. The two clamping blocks are rotatably installed on the outer wall of the corresponding support rod. Each clamping block and the inner wall of the rotating groove has a first reset component. The fixing base has a lifting groove, and the lifting rod is slidably installed in the lifting groove. A vertical connecting groove is opened between the lifting groove and the two rotating grooves. The two locking rods are symmetrically arranged at the end of the locking rod near the slot, and the two locking rods are respectively located in the corresponding lifting groove. The lifting rod and the inner wall of the lifting groove have several second reset components. The end of each clamping block near the lifting rod has a locking groove, and both locking rods can be inserted into the corresponding locking groove. A through hole is opened between the lifting groove and the slot. The end of the lifting rod near the slot has an unlocking block, and the unlocking block is located in the through hole and can abut against the outer wall of the clamping shaft.

5. The anti-detachment device for the overhead crane small box clamp according to claim 4, characterized in that: The clamping block is C-shaped and includes a trigger part, a vertical part, and an abutment part. The trigger part and the abutment part are located at the two ends of the vertical part, respectively. The cross-section of the trigger part is triangular and the inclined surface of the trigger part contacts the clamping shaft. The cross-section of the abutment part is arc-shaped and the end of the abutment part is rounded. The end of the abutment part can contact the outer wall of the clamping shaft.

6. The anti-detachment device for the overhead crane small box clamp according to claim 5, characterized in that: The first reset element is a torsion spring, and each first reset element is respectively sleeved on the outer wall of the corresponding support rod.

7. The anti-detachment device for the overhead crane small box clamp according to claim 6, characterized in that: The second reset element is a tension spring, and each second reset element is respectively sleeved on the outer wall of the corresponding locking rod.

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