A structure of calcium carbide pot holding tongs

Abstract

The utility model provides a kind of calcium carbide pot holding tongs structure, including main frame plate, tong arm, connecting rod, connecting shaft, vice frame plate and locking mechanism;The structure of the main frame plate is inverted "T", the bottom of the main frame plate is respectively connected with the middle part of two tong arms, two The tong arm is symmetrically crossed and arranged, the long arm one end of the tong arm is hinged with the one end of connecting rod, the other end of two The connecting rod is hinged together by connecting shaft, the connecting shaft is slid in the first limit sliding slot on the main frame plate, vice frame plate is also slid and arranged on the main frame plate, the connecting shaft is slid in the second limit sliding slot on the vice frame plate, locking mechanism is installed between the main frame plate and vice frame plate.The utility model has the advantages that: by travelling crane traction, the up-down position of sliding lock rod is controlled, the work of not needing artificial opening tong arm can be realized, thereby avoid the contact between personnel and calcium carbide, prevent scald, improve safety.

Description

Technical Field

[0001] The utility model relates to the field of calcium carbide pots, in particular to a clamping tong structure for calcium carbide pots. Background Art

[0002] Calcium carbide, also known as calcium carbide, is an inorganic compound that immediately undergoes a violent reaction when encountering water to generate acetylene and release heat. Calcium carbide is an important basic chemical raw material, mainly used to produce acetylene gas. In the calcium carbide production process, a tapping traction device first transfers the calcium carbide pot filled with molten calcium carbide to a cooling workshop for cooling, then an operator removes the pot lugs on both sides of the calcium carbide pot, and a lifting tong can extend into the calcium carbide pot from the notch to lift out solid calcium carbide.

[0003] In the prior art, the lifting tong used is a scissor-shaped single clamping tong. When the scissor-shaped single clamping tong grabs and lowers calcium carbide, the two ends of the tong arms cannot autonomously be located on both sides of the calcium carbide, so that the calcium carbide cannot be clamped. An appropriate opening and closing degree of the tong arms is required to ensure that the tong claws can stably clamp the calcium carbide, so the opening and closing of the tong arms usually requires manual adjustment. During the process of adjusting the tong arms, operators are prone to contact with calcium carbide and get scalded, which has certain potential safety hazards. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a clamping tong structure for calcium carbide pots.

[0005] The utility model is implemented by the following technical solutions: A clamping tong structure for calcium carbide pots, comprising a main frame plate, tong arms, connecting rods, a connecting shaft, an auxiliary frame plate and a locking mechanism; the structure of the main frame plate is inverted "T"-shaped, the two ends of the bottom of the main frame plate are respectively rotatably connected with the middle parts of two tong arms, the two tong arms are symmetrically arranged in a crossed manner, one long arm end of each tong arm is hinged with one end of a connecting rod, the other ends of the two connecting rods are hinged together through the connecting shaft, the connecting shaft slides in a first limiting chute on the main frame plate, the auxiliary frame plate is also slidably arranged on the main frame plate, the connecting shaft slides in a second limiting chute on the auxiliary frame plate, and the locking mechanism is installed between the main frame plate and the auxiliary frame plate.

[0006] Preferably, a movable slot is opened inside the main frame plate, third limiting chutes are opened on the two vertical side surfaces of the main frame plate, the movable slot is vertically communicated with the third limiting chutes, the tong arms and the connecting rods are both movable in the movable slot, the auxiliary frame plate is "冂"-shaped in structure, the auxiliary frame plate is slidably inserted into the third limiting chutes and slides in the vertical direction, and a lifting lug is fixed on the top of the auxiliary frame plate.

[0007] Preferably, a clamping hook is fixed at the bottom end of the tong arm, and the thickness of the clamping hook is 20-25mm.

[0008] Preferably, the locking mechanism includes a locking rod, a locking block, an unlocking plate, and a pad, arranged sequentially from top to bottom on the same side; one end of the locking rod is hinged to the bottom side surface of the sub-frame plate; the locking block and the pad are fixed to the bottom side surface of the main frame plate; the unlocking plate is rotatably disposed on the bottom side surface of the main frame plate and located between the locking block and the pad; the locking rod has an "arc" structure; a locking block is fixed to the bottom end of the locking rod; and the locking block is movably engaged below the locking block.

[0009] The advantages of this utility model are: by controlling the up and down position of the sliding locking rod through traction by a tractor, the operation of opening the clamp arm can be achieved without manual intervention, thereby avoiding contact between personnel and calcium carbide, preventing burns, and improving safety. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 Structural changes Figure 1 ; Figure 3 yes Figure 1 Structural changes Figure 2 ; Figure 4 yes Figure 1 Enlarged view of point A in the middle; Figure 5 yes Figure 2 Enlarged view of point B in the middle; Figure 6 yes Figure 3 Enlarged view of point C in the middle; Figure 7 This is a structural schematic diagram of the main frame plate; Figure 8 This is a structural schematic diagram of the subframe plate; Figure 9 This is a connection diagram of a partial structure; Figure 10 This is a reference for the use of this utility model. Figure 1 ; Figure 11 yes Figure 10 A diagram showing the structural changes during use; Figure 12 yes Figure 11 Further structural changes are shown in the diagram.

[0011] In the figure: 1. Main frame plate, 1.1. First limiting chute, 1.2. Movable slot, 1.3. Third limiting chute, 2. Clamping arm, 2.1. Clamping hook, 3. Connecting rod, 4. Connecting shaft, 5. Auxiliary frame plate, 5.1. Second limiting chute, 6. Locking mechanism, 6.1. Locking rod, 6.11. Clamping block, 6.2. Locking block, 6.3. Unlocking plate, 6.4. Spacer block, 7. Lifting lug, 8. Calcium carbide pot, 8.1. Pot lug, 8.2. movable gap, 9. Calcium carbide. Detailed Description of Embodiments

[0012] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0013] As shown in Figures 1 to 12 , a calcium carbide pot clamping clamp structure comprises a main frame plate 1, clamping arms 2, connecting rods 3, a connecting shaft 4, an auxiliary frame plate 5 and a locking mechanism 6; The main frame plate 1 is of inverted T-shaped structure, a movable slot 1.2 is opened inside the main frame plate 1, third limiting chutes 1.3 are opened on the two vertical side surfaces of the main frame plate 1, the movable slot 1.2 is vertically communicated with the third limiting chutes 1.3, the two ends of the bottom of the main frame plate 1 are respectively rotatably connected with the middle parts of the two clamping arms 2, the two clamping arms 2 are symmetrically arranged in a cross way, a clamping hook 2.1 is fixed at the bottom end of the clamping arm 2, and the thickness of the clamping hook 2.1 is 20-25 mm, so that the clamping hook 2.1 can be clamped in the movable gap 8.2. One long arm end of each clamping arm 2 is hinged with one end of a connecting rod 3, the other ends of the two connecting rods 3 are hinged together through a connecting shaft 4, the connecting shaft 4 slides in the first limiting chute 1.1 on the main frame plate 1, the clamping arms 2 and the connecting rods 3 are both movable in the movable slot 1.2, the auxiliary frame plate 5 is of a n-shaped structure, the auxiliary frame plate 5 is slidably inserted into the third limiting chute 1.3 and slides along the vertical direction, a lifting lug 7 is fixed at the top of the auxiliary frame plate 5, and the connecting shaft 4 slides in the second limiting chute 5.1 on the auxiliary frame plate 5.

[0014] The lifting lug 7 is connected with a hook on a travelling crane. When in use, the lifting lug 7 is pulled up by the travelling crane, the auxiliary frame plate 5 slides upward, and the connecting shaft 4 is pulled upward under the action of the second limiting chute 5.1, so that the two connecting rods 3 slide upward and drive the two clamping arms 2 to rotate relatively, so that the two clamping hooks 2.1 at the bottom ends of the two clamping arms 2 move close to each other.

[0015] In order to facilitate the bottom ends of the two clamping arms 2 to be smoothly clamped at the bottoms of the pot lugs 8.1 on both sides of the calcium carbide pot 8 before clamping, a locking mechanism 6 is installed between the main frame plate 1 and the auxiliary frame plate 5, wherein regarding the specific structure of the calcium carbide pot 8 See patent application number Patent No. 202520605025.8 .

[0016] The locking mechanism 6 includes a locking rod 6.1, a locking block 6.2, an unlocking plate 6.3, and a pad 6.4 arranged sequentially from top to bottom on the same side. The bottom side surface of the sub-frame plate 5 is hinged to one end of the locking rod 6.1. The locking block 6.2 and the pad 6.4 are fixed on the bottom side surface of the main frame plate 1. The unlocking plate 6.3 is rotatably arranged on the bottom side surface of the main frame plate 1 and located between the locking block 6.2 and the pad 6.4. The locking rod 6.1 has an "arc" structure. The bottom end of the locking rod 6.1 is fixed with a locking block 6.11, which is movably engaged below the locking block 6.2.

[0017] Using the crane to pull the subframe plate 5 up and down, before clamping, the clamping structure is placed vertically on the ground. By sliding the subframe plate 5 downward, the locking block 6.11 at the bottom of the locking rod 6.1 is clamped under the locking block 6.2. Then the subframe plate 5 is immediately pulled up. At this time, the two hooks 2.1 at the bottom of the two clamping arms 2 are farthest apart, which makes it easy to place them on both sides of the calcium carbide pot 8 and clamp the calcium carbide 9. Next, place the main frame plate 1 above the calcium carbide pot 8 and adjust the position of the two clamping arms 2. Continue to slide the secondary frame plate 5 down, so that the locking block 6.11 at the bottom of the locking rod 6.1 slides down along the upper surface of the unlocking plate 6.3 until the locking block 6.11 is stuck below the unlocking plate 6.3. Immediately pull up the secondary frame plate 5, and the locking rod 6.1 slides upward through the locking block 6.11, forcing the unlocking plate 6.3 to flip upward. The unlocking plate 6.3 overlaps with the locking block 6.2, so that the locking block 6.11 at the bottom of the locking rod 6.1 can slide upward along the unlocking plate 6.3, realizing the hook release and unlocking. As the secondary frame plate 5 is quickly pulled upward, the two hooks 2.1 at the bottom of the two clamping arms 2 quickly approach and engage with the bottom of the two pot ears 8.1. As the two clamping arms 2 continue to rise, the two pot ears 8.1 slide successively and open the movable gap 8.2, so that the two hooks 2.1 at the bottom of the two clamping arms 2 clamp onto the surface of the calcium carbide 9, thereby realizing the removal of the calcium carbide.

[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A structure of calcium carbide pot tongs, characterized in that, Comprising a main frame plate (1), clamp arms (2), connecting rods (3), a connecting shaft (4), an auxiliary frame plate (5) and a locking mechanism (6); the main frame plate (1) has an inverted "T"-shaped structure, both ends of the bottom of the main frame plate (1) are respectively rotatably connected to the middle parts of two clamp arms (2), the two clamp arms (2) are symmetrically and crosswise arranged, one long arm end of each clamp arm (2) is hinged to one end of the corresponding connecting rod (3), the other ends of the two connecting rods (3) are hinged together through the connecting shaft (4), the connecting shaft (4) is slidably disposed in a first limiting chute (1.1) on the main frame plate (1), the auxiliary frame plate (5) is further slidably disposed on the main frame plate (1), the connecting shaft (4) is slidably disposed in a second limiting chute (5.1) on the auxiliary frame plate (5), and the locking mechanism (6) is installed between the main frame plate (1) and the auxiliary frame plate (5).

2. The calcium carbide pot tongs structure according to claim 1, characterized in that, A movable groove (1.2) is formed inside the main frame plate (1), third limiting chutes (1.3) are formed on two vertical side surfaces of the main frame plate (1), the movable groove (1.2) is vertically communicated with the third limiting chutes (1.3), the clamp arms (2) and the connecting rods (3) are both movably disposed in the movable groove (1.2), the auxiliary frame plate (5) has a "冂"-shaped structure, the auxiliary frame plate (5) is slidably inserted into the third limiting chutes (1.3) and slides along the vertical direction, and a lifting lug (7) is fixed to the top of the auxiliary frame plate (5).

3. The calcium carbide pot tongs structure of claim 1, wherein, A clamping hook (2.1) is fixed to the bottom end of the clamp arm (2), and the thickness of the clamping hook (2.1) is 20-25 mm.

4. The calcium carbide pot tongs structure of claim 1, wherein, The locking mechanism (6) comprises a locking rod (6.1), a locking block (6.2), an unlocking plate (6.3) and a cushion block (6.4) which are sequentially arranged on the same side from top to bottom; one end of the locking rod (6.1) is hinged to a surface of one side of the bottom end of the auxiliary frame plate (5), the locking block (6.2) and the cushion block (6.4) are fixed to a surface of one side of the bottom end of the main frame plate (1), the unlocking plate (6.3) is rotatably disposed on a surface of one side of the bottom end of the main frame plate (1) and located between the locking block (6.2) and the cushion block (6.4), the locking rod (6.1) has an arc-shaped structure, a clamping block (6.11) is fixed to the bottom end of the locking rod (6.1), and the clamping block (6.11) is movably clamped below the locking block (6.2).

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