Beam box lifting appliance capable of automatically clamping and releasing

Abstract

The utility model provides a beam box lifting appliance capable of automatically clamping and releasing. The beam box lifting appliance comprises a lifting hook seat, an opening and closing mechanism, a guide mechanism, a connecting rod mechanism and a composite mechanism, a lifting hook is arranged at the top end of the lifting hook seat for connecting lifting equipment; the composite mechanism is mounted below the lifting hook seat through the connecting rod mechanism and is used for being in direct contact with the upper cover plate of the beam box and generating upward thrust on the connecting rod mechanism; the opening and closing mechanism is mounted at the bottom end of the lifting hook seat, and provides downward thrust to the composite mechanism so as to generate downward thrust to the connecting rod mechanism; the guide mechanism is used for enabling the opening and closing mechanism, the connecting rod mechanism and the composite mechanism to linearly move in the vertical direction; the connecting rod mechanism comprises a connecting rod assembly and a caliper assembly, and the connecting rod assembly drives the caliper assembly to be opened when bearing upward thrust and drives the caliper assembly to be closed when bearing downward thrust. The lifting appliance has the advantages of being capable of automatically clamping and releasing and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting, in particular to a beam box sling capable of automatically clamping and placing. Background Art

[0002] In the field of crane beam box lifting, a crane is generally required to be used in conjunction with scissors and clamps to clamp beam boxes of various models. Therefore, when using scissors and clamps to clamp beam boxes of various widths, at least two workers are required to manually adjust the opening of the scissors and clamps, which poses certain safety risks.

[0003] In addition, since it is a lifting equipment, high-altitude operation is essential. When the height of the beam box is too high, there is a great safety hazard when the workers manually remove the scissors and pliers.

[0004] In order to solve this problem, it is necessary to improve the existing scissors and clamps mechanism so that it can perform automatic clamping action to overcome the series of safety risks faced by manual intervention to adjust the opening of the scissors and clamps before the clamping action. Utility Model Content

[0005] The purpose of the utility model is to address the deficiencies of the prior art and thus provide a beam box sling which can automatically clamp and place and has high safety.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a beam box sling capable of automatically clamping and placing, comprising a hook seat, an opening and closing mechanism, a guide mechanism, a connecting rod mechanism and a composite mechanism;

[0007] A hook is provided on the top of the hook seat for connecting a lifting device;

[0008] The composite mechanism is installed below the hook seat through a connecting rod mechanism and is used to directly contact the upper cover plate of the beam box to generate an upward thrust on the connecting rod mechanism;

[0009] The opening and closing mechanism is installed at the bottom end of the hook seat, and has provided a downward thrust to the composite mechanism, thereby generating a downward thrust to the connecting rod mechanism;

[0010] The guide mechanism is used to make the opening and closing mechanism, the connecting rod mechanism and the composite mechanism move linearly in the vertical direction;

[0011] The connecting rod mechanism includes a connecting rod assembly and a caliper assembly. The connecting rod assembly drives the caliper assembly to open when receiving an upward thrust, and drives the caliper assembly to close when receiving a downward thrust.

[0012] Preferably, the connecting rod assembly includes two upper connecting rods, an upper hinge shaft, two lower connecting rods and a lower hinge shaft, and the caliper assembly includes two hinged caliper arms;

[0013] The upper hinge shaft is installed on the hook seat, and the two upper connecting rods are hinged to the upper hinge shaft, and the bottom ends of the two upper connecting rods are hinged to the upper ends of the two clamp arms respectively;

[0014] The lower hinge shaft is mounted on the composite mechanism, and two lower connecting rods are hinged to the lower hinge shaft, and the top ends of the two lower connecting rods are hinged to the lower ends of the two clamp arms respectively;

[0015] The connecting rod assembly cooperates with the caliper assembly to form two parallelogram structures.

[0016] Preferably, the hook seat includes the hook, the opener and closeer connecting seat and the guide connecting seat, the opener and closeer connecting seat is formed on one side of the bottom end of the hook, and is used to install the opening and closing mechanism; the guide connecting seat is formed on the other side of the bottom end of the hook, and is used to install the guide mechanism.

[0017] Preferably, the hook seat further comprises a storage rack support rod for being mounted on the storage rack when idle.

[0018] Preferably, the opening and closing mechanism includes a power column that performs telescopic movement, and the inner and outer columns of the power column are equipped with limiting members that maintain linearity.

[0019] Preferably, the power column is a hydraulic telescopic column or a pneumatic telescopic column or a ball screw electric rod actuator.

[0020] Preferably, the guide mechanism includes a linear slide rail, a slider, a slide rail mounting seat and a slider mounting seat, the linear slide rail is mounted on the guide connecting seat through the slide rail mounting seat, the slider slides in cooperation with the linear slide rail, and the slider is mounted on the composite mechanism through the slider mounting seat.

[0021] Preferably, the composite structure includes a base plate, a connecting rod seat and a guide connecting plate, the connecting rod seat is arranged on the base plate for installing the lower hinge shaft, and the guide connecting plate is arranged on the base plate for installing the slider mounting seat.

[0022] Preferably, an opening and closing mechanism limit seat is provided on the bottom plate, and the opening and closing mechanism limit seat is used to receive the telescopic end of the power column.

[0023] Preferably, the base plate comprises an H-shaped structure formed by assembling rectangular tubes and channel steels.

[0024] Compared with the existing technology, the present invention has substantial characteristics and progress. Specifically, the present invention takes the connecting rod mechanism as the core, and uses the composite mechanism to abut the upper surface of the beam box to provide an upward thrust to the connecting rod mechanism, so as to open the caliper to adapt to the clamping width of the beam box; when clamping and locking is required, the opening and closing mechanism drives the composite mechanism to move downward, and the connecting rod mechanism is subjected to the downward thrust to clamp the caliper inward. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an overall schematic diagram of a beam box sling capable of automatic clamping and placing in the utility model.

[0026] Figure 2 The utility model is a structural schematic diagram of a hook seat in a beam box sling capable of automatically clamping and placing.

[0027] Figure 3 It is a structural diagram of the guide mechanism in the utility model.

[0028] Figure 4 It is a structural diagram of the connecting rod mechanism in the utility model.

[0029] Figure 5 It is a structural diagram of the composite mechanism in the utility model.

[0030] Figure 6 It is a structural diagram of the opening and closing mechanism in the utility model.

[0031] In the figure: 1. Opening and closing mechanism; 2. Hook seat; 3. Guide mechanism; 4. Connecting rod mechanism; 5. Composite mechanism; 6. Storage rack; 1.1 Hook; 1.2 Opener connecting seat; 1.3 Guide connecting seat; 1.4 Storage rack support rod; 1.5 Limiting piece; 1.6 Block; 3.1 Linear slide rail; 3.2 Slider; 3.3 Slide rail mounting seat; 3.4 Slider mounting seat; 4.1 Upper connecting rod; 4.2 Upper hinge shaft; 4.3 Lower connecting rod; 4.4 Lower hinge shaft; 4.5 Clamp arm; 5.1 Rectangular tube; 5.2 Channel steel; 5.3 Connecting rod connecting seat; 5.4 Guide connecting plate; 5.5 Opening and closing mechanism limiting seat. DETAILED DESCRIPTION

[0032] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0033] like Figures 1-6 As shown, a beam box sling capable of automatic clamping and placing includes a hook seat 2, an opening and closing mechanism 1, a guide mechanism 3, a connecting rod mechanism 4 and a composite mechanism 5.

[0034] A hook 1.1 is provided at the top of the hook seat 1 for connecting a lifting device. The hook seat 1 also includes an opener and closeer connecting seat 1.2 and a guide connecting seat 1.3. The opener and closeer connecting seat 1.2 is formed on one side of the bottom end of the hook for installing the opening and closing mechanism; the guide connecting seat 1.3 is formed on the other side of the bottom end of the hook for installing the guide mechanism.

[0035] The hook seat is provided with a storage rack support rod 1.4 along the horizontal direction, which is used to be mounted on the storage rack 6 when idle. Figure 1 shown.

[0036] The composite mechanism 5 is installed below the hook seat 1 through the connecting rod mechanism 4 and is used to directly contact the upper cover plate of the beam box to generate an upward thrust on the connecting rod mechanism.

[0037] Specifically, the composite structure 5 includes a base plate, a connecting rod seat 5.3 and a guide connecting plate 5.4. The base plate includes an H-shaped structure formed by assembling a rectangular tube 5.1 and a channel steel 5.2. The connecting rod seat 5.3 is arranged on the base plate for installing the lower hinge shaft, and the guide connecting plate 5.4 is arranged on the base plate for installing the slider mounting seat.

[0038] An opening and closing mechanism limit seat 5.5 is provided on the bottom plate, and the opening and closing mechanism limit seat 5.5 is used to receive the telescopic end of the power column.

[0039] The opening and closing mechanism 1 is installed at the bottom end of the hook seat 2, and has provided a downward thrust to the composite mechanism 5 and then generated a downward thrust to the connecting rod mechanism 4, which is mainly used to lock the caliper.

[0040] The guide mechanism 3 is used to make the opening and closing mechanism 1, the connecting rod mechanism 4 and the composite mechanism 5 move linearly in the vertical direction; the guide mechanism 3 includes a linear slide rail 3.1, a slider 3.2, a slide rail mounting seat 3.3 and a slider mounting seat 3.4. The linear slide rail 3.1 is mounted on the guide connecting seat 1.3 through the slide rail mounting seat 3.3, the slider 3.2 is slidably matched with the linear slide rail 3.1, and the slider 3.2 is mounted on the guide connecting plate 5.4 of the composite mechanism 5 through the slider mounting seat 3.4.

[0041] The connecting rod mechanism 4 includes a connecting rod assembly and a caliper assembly. The connecting rod assembly drives the caliper assembly to open when receiving an upward thrust, and drives the caliper assembly to close when receiving a downward thrust.

[0042] Specifically, in this embodiment, the connecting rod assembly includes two upper connecting rods 4.1, an upper hinge shaft 4.2, two lower connecting rods 4.3 and a lower hinge shaft 4.4, and the caliper assembly includes two hinged caliper arms 4.5;

[0043] The upper hinge shaft 4.2 is mounted on the hook seat, and the two upper connecting rods 4.1 are hinged to the upper hinge shaft 4.2. The bottom ends of the two upper connecting rods 4.1 are hinged to the upper ends of the two clamp arms 4.5 respectively.

[0044] The lower hinge shaft 4.4 is installed on the connecting rod connecting seat 5.3 of the composite mechanism. The two lower connecting rods 4.3 are hinged to the lower hinge shaft 4.4. The top ends of the two lower connecting rods 4.3 are hinged to the lower ends of the two caliper arms 4.5 respectively. The connecting rod assembly cooperates with the caliper assembly to form two parallelogram structures.

[0045] The connecting rod assembly is the core component of the mechanism, which utilizes the parallelogram principle to realize the linkage between the clamp arm 4.5 and the connecting rod, thereby realizing the opening and closing of the clamp arm 4.5.

[0046] The opening and closing mechanism 1 includes a power column that performs telescopic movement. The inner and outer columns of the power column are equipped with limit members 1.5 for maintaining linearity. In this embodiment, the power column is a ball screw electric rod actuator. In other embodiments, it can also be a hydraulic telescopic column or a pneumatic telescopic column.

[0047] The bottom end of the power column is provided with a block 1.6 that matches the rotatable angle of the opening and closing mechanism limit seat 5.5, and is locked and unlocked with the base plate by rotating the angle. In this embodiment, locking and unlocking are achieved by automatically adjusting the 0 position state and the 90 position state.

[0048] There are many ways to control the rotation angle. In this embodiment, the angle control is achieved by controlling the rotation of the entire power column. In other embodiments, the control can also be achieved by controlling the rotation of the end of the telescopic rod separately.

[0049] Working principle description:

[0050] By cooperating with the lifting equipment through the hook 1.1, it is suspended above the beam box and then lowered. During this process, the opening and closing mechanism 1 is in the unlocked state, the length is retracted, the composite mechanism 5 is released to allow it to move freely, and the two calipers are in the retracted state.

[0051] When encountering the beam box, the bottom plate of the composite mechanism 5 contacts the upper cover plate of the beam box, exerting an upward force on the link mechanism 4, causing the caliper to open and automatically adapt to the beam box;

[0052] After clamping the beam box, drive the power column of the opening and closing mechanism 1 downward, press the composite mechanism 5 and lock it, lock the caliper, and start lifting.

[0053] After being transferred into place, the power column of the opening and closing mechanism 1 moves upward. At this time, due to the locking of the opening and closing mechanism limit seat 5.5, the composite mechanism 5 moves upward together with the opening and closing mechanism 1, opens the caliper, and releases the beam box.

[0054] The spreader adjusts the clamp arm through a connecting rod mechanism and can lift beam boxes of different widths; the spreader's gravity opening and closing mechanism, combined with the linear slide rail, enables the spreader to automatically open and close in the vertical direction, thereby completely replacing the original manual scissor clamp beam box spreader and achieving an upgrade in functionality and safety.

[0055] Finally, it should be noted that: The above describes in detail the preferred embodiments of this patent, but this patent is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A beam box sling capable of automatic clamping and placing, characterized by: It includes a hook seat, an opening and closing mechanism, a guide mechanism, a connecting rod mechanism and a composite mechanism; A hook is provided on the top of the hook seat for connecting a lifting device; The composite mechanism is installed below the hook seat through a connecting rod mechanism and is used to directly contact the upper cover plate of the beam box to generate an upward thrust on the connecting rod mechanism; The opening and closing mechanism is installed at the bottom end of the hook seat, and has provided a downward thrust to the composite mechanism, thereby generating a downward thrust to the connecting rod mechanism; The guide mechanism is used to make the opening and closing mechanism, the connecting rod mechanism and the composite mechanism move linearly in the vertical direction; The connecting rod mechanism includes a connecting rod assembly and a caliper assembly. The connecting rod assembly drives the caliper assembly to open when receiving an upward thrust, and drives the caliper assembly to close when receiving a downward thrust.

2. The beam box sling capable of automatic clamping and placing according to claim 1, characterized in that: The connecting rod assembly includes two upper connecting rods, an upper hinge shaft, two lower connecting rods and a lower hinge shaft, and the caliper assembly includes two hinged caliper arms; The upper hinge shaft is installed on the hook seat, and the two upper connecting rods are hinged to the upper hinge shaft, and the bottom ends of the two upper connecting rods are hinged to the upper ends of the two clamp arms respectively; The lower hinge shaft is mounted on the composite mechanism, and two lower connecting rods are hinged to the lower hinge shaft, and the top ends of the two lower connecting rods are hinged to the lower ends of the two clamp arms respectively; The connecting rod assembly cooperates with the caliper assembly to form two parallelogram structures.

3. The beam box sling capable of automatic clamping and placing according to claim 2, characterized in that: The hook seat includes the hook, the opener and closeer connecting seat and the guide connecting seat. The opener and closeer connecting seat is formed on one side of the bottom end of the hook and is used to install the opening and closing mechanism; the guide connecting seat is formed on the other side of the bottom end of the hook and is used to install the guide mechanism.

4. The beam box sling capable of automatic clamping and placing according to claim 3, characterized in that: The hook seat also includes a storage rack support rod, which is used for hanging on the storage rack when idle.

5. The beam box sling capable of automatic clamping and placing according to claim 2, characterized in that: The opening and closing mechanism includes a power column that performs telescopic movement, and the inner and outer columns of the power column are equipped with limiting pieces that maintain linearity.

6. The beam box sling capable of automatic clamping and placing according to claim 5, characterized in that: The power column is a hydraulic telescopic column, a pneumatic telescopic column, or a ball screw electric rod actuator.

7. The beam box sling capable of automatic clamping and placing according to claim 5, characterized in that: The guide mechanism includes a linear slide rail, a slider, a slide rail mounting seat and a slider mounting seat. The linear slide rail is mounted on the guide connecting seat through the slide rail mounting seat. The slider slides in cooperation with the linear slide rail. The slider is mounted on the composite mechanism through the slider mounting seat.

8. The beam box sling capable of automatic clamping and placing according to claim 7, characterized in that: The composite mechanism includes a base plate, a connecting rod connection seat and a guide connecting plate. The connecting rod connection seat is arranged on the base plate for installing the lower hinge shaft, and the guide connecting plate is arranged on the base plate for installing the slider mounting seat.

9. The beam box sling capable of automatic clamping and placing according to claim 8, characterized in that: The bottom plate is provided with an opening and closing mechanism limit seat, and the bottom end of the power column is matched with a rotatable block, which is locked and unlocked with the bottom plate by rotating the angle.

10. The beam box sling capable of automatic clamping and placing according to claim 9, characterized in that: The bottom plate comprises an H-shaped structure formed by assembling rectangular tubes and channel steels.

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