Novel bridge type grab bucket crane

Abstract

The utility model discloses a novel bridge type grab bucket crane which comprises a supporting base, grippers are installed on the two sides of the supporting base, clamping grooves are formed in the lower ends of the grippers, clamping blocks are connected into the clamping grooves in a clamped mode, and gripper teeth are fixedly welded to one ends of the clamping blocks. The clamping block and the gripper teeth can be fixedly installed, the clamping block loses constraint by rotating the dismantling screw, the gripper teeth are conveniently dismantled to be maintained and replaced, and the maintenance cost of the gripper is reduced; the lower sliding disc and the sliding column are slidably sleeved with the lower connecting sleeve, and the upper sliding disc is slidably sleeved with the upper connecting sleeve, so that the angle of the gripper can be conveniently rotated and adjusted, steel bars, steel pipes and other long materials with different angles can be clamped and grabbed, and the use convenience is improved; and a gap between the lower connecting sleeve and the upper connecting sleeve can be sealed through the design of a sealing ring, and dust and impurities are prevented from entering the lower connecting sleeve and the upper connecting sleeve to affect rotation flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of crane devices, in particular to a novel bridge grab crane. Background Technique

[0002] The grab bridge crane is an auxiliary device for grasping and transporting objects, and it is widely used in the field of article transportation; the existing grab bridge crane includes clamping plates, slide rails, electric hoists, steel wires, first fixing blocks and multiple groups of grippers. The slide rails are installed at the bottom end of the clamping plates, the electric hoists are slidably installed at the bottom end of the slide rails, steel wires are arranged on the electric hoists, and multiple groups of grippers are arranged on the first fixing blocks; when the existing grab bridge crane is in use, first slide the electric hoist to move the steel wire, the first fixing block and the grippers accordingly, and open the grippers to clamp the object.

[0003] Currently, by providing a telescopic frame, a covering frame, a telescopic plate and sliding rods, when the gripper grabs an object, the telescopic frame moves downward under the action of the telescopic spring and drives the first fixing block and the gripper to move downward. When the object is too heavy, the warning frame is exposed, an overweight alarm device is added, which can play a warning role for the staff when grabbing an overweight object, reduce potential safety hazards, and improve reliability and practicability.

[0004] For example, a grab bridge crane disclosed in the authorized publication number CN211769823U includes clamping plates, slide rails, electric hoists, steel wires, first fixing blocks and multiple groups of grippers. The slide rails are installed at the bottom end of the clamping plates, the electric hoists are slidably installed at the bottom end of the slide rails, steel wires are arranged on the electric hoists, and multiple groups of grippers are arranged on the first fixing blocks; it also includes a telescopic frame, a covering frame, a telescopic plate and multiple groups of sliding rods. The covering frame is installed at the bottom end of the steel wire, the covering frame is movably installed on the telescopic frame, the bottom end of the telescopic frame is connected to the top end of the first fixing block, the bottom end of the telescopic plate is connected to the inner side wall of the bottom end of the telescopic frame, multiple groups of sliding rods are all installed at the top end of the telescopic plate, the top ends of multiple groups of sliding rods can all slide through the top end of the telescopic frame and extend upward, the top ends of multiple groups of sliding rods are all connected to the inner side wall of the top end of the covering frame, telescopic springs are arranged on each group of sliding rods, the top ends of each group of telescopic springs are all connected to the inner side wall of the top end of the telescopic frame, the bottom ends of each group of telescopic springs are all connected to the top end of the telescopic plate, and a warning frame is arranged on the outer side wall of the telescopic frame. However, such a grab bridge crane is not convenient for disassembling and assembling the gripper teeth at the end of the gripper, the overall cost of repairing and replacing the gripper is relatively high, and it is not convenient to rotate the angle position of the gripper so as to clamp and grab longer materials such as steel bars and steel pipes at different angles.

[0005] As can be seen from the solutions disclosed in the above-mentioned existing patent documents, it is inconvenient to disassemble and assemble the gripper teeth at the end of the gripper. The overall cost of repairing and replacing the gripper is relatively high, and it is inconvenient to rotate the angle position of the gripper so as to perform gripping operations on long materials such as steel bars and steel pipes at different angles. Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0006] The purpose of the present invention is to provide a new type of bridge grab crane to solve the problems that it is inconvenient to disassemble and assemble the gripper teeth at the end of the gripper, the overall cost of repairing and replacing the gripper is relatively high, and it is inconvenient to rotate the angle position of the gripper so as to perform gripping operations on long materials such as steel bars and steel pipes at different angles.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: A new type of bridge grab crane, including a support base, grippers are installed on both sides of the support base, a clamping groove is provided at the lower end of the gripper, a clamping block is clamped inside the clamping groove, one end of the clamping block is fixedly welded with a gripper tooth, a connecting seat is fixedly welded to the upper end of the support base, a lower connecting sleeve is fixedly welded to the upper end of the connecting seat, a sliding disk is slidably sleeved inside the lower connecting sleeve, a sliding column is fixedly welded to the upper end of the sliding disk, an upper sliding disk is fixedly welded to the upper end of the sliding column, an upper connecting sleeve is slidably sleeved outside the upper sliding disk, and a sealing ring is slidably sleeved outside the sliding column.

[0008] Preferably, the lower end of the gripper is clamped with a clamping block, and the lower end of the gripper is closely attached to the gripper tooth. By clamping the clamping block inside the clamping groove and turning and tightening the screw, the clamping block and the gripper tooth can be fixedly installed.

[0009] Preferably, a screw is threadedly connected inside the clamping block, and the lower end of the screw is threadedly connected to the gripper. By turning and removing the screw, the clamping block loses its restraint, and it is convenient to remove the gripper tooth for repair and replacement, reducing the gripper repair cost.

[0010] Preferably, the sliding column is slidably sleeved inside the lower connecting sleeve, and the sliding column is slidably sleeved inside the upper connecting sleeve. By slidably sleeving the sliding disk and the sliding column inside the lower connecting sleeve and slidably sleeving the upper sliding disk outside the upper connecting sleeve, it is convenient to rotate and adjust the angle of the gripper so as to perform gripping operations on long materials such as steel bars and steel pipes at different angles, improving the convenience of use.

[0011] Preferably, the upper end surface of the lower connecting sleeve is slidably connected with a sealing ring, the upper end surface of the sealing ring is slidably connected with the upper connecting sleeve, and a fixing block is fixedly welded to the upper end of the upper connecting sleeve. The design of the sealing ring can seal the gap between the lower connecting sleeve and the upper connecting sleeve, preventing dust and impurities from entering the inside of the lower connecting sleeve and the upper connecting sleeve and affecting the rotation flexibility.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The lower end of the gripper of the present utility model is snap-connected with a clamping block, and the lower end of the gripper is closely attached to the gripper teeth. By snapping the clamping block into the internal slot of the card slot and turning and tightening the screw, the clamping block and the gripper teeth can be fixedly installed.

[0014] 2. A screw is threadedly connected inside the clamping block of the present utility model, and the lower end of the screw is threadedly connected to the gripper. By turning and removing the screw, the clamping block is no longer restricted, which is convenient for removing the gripper teeth for maintenance and replacement, reducing the maintenance cost of the gripper.

[0015] 3. The sliding column is slidably sleeved inside the lower connecting sleeve of the present utility model, and the sliding column is slidably sleeved inside the upper connecting sleeve. By slidably sleeving the lower sliding plate and the sliding column inside the lower connecting sleeve, and the outer side of the upper sliding plate is slidably sleeved with the upper connecting sleeve, it is convenient to rotate and adjust the angle of the gripper so as to clamp and grab longer materials such as steel bars and steel pipes at different angles, improving the convenience of use.

[0016] 4. The upper end surface of the lower connecting sleeve of the present utility model is slidably connected with a sealing ring, the upper end surface of the sealing ring is slidably connected with the upper connecting sleeve, and a fixing block is fixedly welded to the upper end of the upper connecting sleeve. The design of the sealing ring can seal the gap between the lower connecting sleeve and the upper connecting sleeve, preventing dust and impurities from entering the inside of the lower connecting sleeve and the upper connecting sleeve and affecting the rotational flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is an enlarged view of part A of the present utility model;

[0019] Figure 3 is a top view of the sealing ring of the present utility model.

[0020] In the figure: 1 support base, 11 gripper, 12 card slot, 13 clamping block, 14 gripper teeth, 15 screw, 2 connecting seat, 21 lower connecting sleeve, 22 lower sliding plate, 23 sliding column, 24 upper sliding plate, 25 upper connecting sleeve, 26 sealing ring, 27 fixing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] 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 a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1-3 Figures 1-3 , a novel bridge-type grab crane shown in the figure, includes a support base 1. On both sides of the support base 1, there are installed grippers 11. At the lower end of the gripper 11, there is a card slot 12. Inside the card slot 12, there is a snap block 13 clamped. One end of the snap block 13 is fixedly welded with a gripper tooth 14. At the upper end of the support base 1, there is a connecting seat 2 fixedly welded. At the upper end of the connecting seat 2, there is a lower connecting sleeve 21 fixedly welded. Inside the lower connecting sleeve 21, there is a lower sliding disk 22 slidably sleeved. At the upper end of the lower sliding disk 22, there is a sliding column 23 fixedly welded. At the upper end of the sliding column 23, there is an upper sliding disk 24 fixedly welded. Outside the upper sliding disk 24, there is an upper connecting sleeve 25 slidably sleeved. Outside the sliding column 23, there is a sealing ring 26 slidably sleeved.

[0024] In order to reduce the maintenance cost of the gripper 14, the lower end of the gripper 11 is clamped with the snap block 13, and the lower end of the gripper 11 is closely attached to the gripper tooth 14. By clamping the snap block 13 inside the card slot 12 and turning and tightening the screw 15, the snap block 13 and the gripper tooth 14 can be fixedly installed. Inside the snap block 13, there is a screw 15 connected by threads. The lower end of the screw 15 is connected to the gripper 11 by threads. By turning and removing the screw 15, the snap block 13 loses its restraint, facilitating the removal of the gripper tooth 14 for maintenance and replacement, and reducing the maintenance cost of the gripper 14.

[0025] In this implementation scheme, by clamping the snap block 13 inside the card slot 12 and turning and tightening the screw 15, the snap block 13 and the gripper tooth 14 can be fixedly installed. By turning and removing the screw 15, the snap block 13 loses its restraint, facilitating the removal of the gripper tooth 14 for maintenance and replacement, and reducing the maintenance cost of the gripper 14.

[0026] Embodiment 2

[0027] Please refer to Figures 1-3 Figures 1-3 , this embodiment further describes Embodiment 1. A novel bridge-type grab crane shown in the figure includes a support base 1. On both sides of the support base 1, there are installed grippers 11. At the lower end of the gripper 11, there is a card slot 12. Inside the card slot 12, there is a snap block 13 clamped. One end of the snap block 13 is fixedly welded with a gripper tooth 14. At the upper end of the support base 1, there is a connecting seat 2 fixedly welded. At the upper end of the connecting seat 2, there is a lower connecting sleeve 21 fixedly welded. Inside the lower connecting sleeve 21, there is a lower sliding disk 22 slidably sleeved. At the upper end of the lower sliding disk 22, there is a sliding column 23 fixedly welded. At the upper end of the sliding column 23, there is an upper sliding disk 24 fixedly welded. Outside the upper sliding disk 24, there is an upper connecting sleeve 25 slidably sleeved. Outside the sliding column 23, there is a sealing ring 26 slidably sleeved.

[0028] In order to facilitate the rotation and adjustment of the angle of the gripper 14, the sliding column 23 is slidably sleeved inside the lower connecting sleeve 21, and the sliding column 23 is also slidably sleeved inside the upper connecting sleeve 25. By slidably sleeving the lower sliding plate 22 and the sliding column 23 inside the lower connecting sleeve 21, and slidably sleeving the upper connecting sleeve 25 on the outside of the upper sliding plate 24, it is convenient to rotate and adjust the angle of the gripper 14 so as to perform gripping operations on long materials such as steel bars and steel pipes at different angles, improving the convenience of use. The upper end face of the lower connecting sleeve 21 is slidably connected to the sealing ring 26, and the upper end face of the sealing ring 26 is slidably connected to the upper connecting sleeve 25. A fixing block 27 is fixedly welded to the upper end of the upper connecting sleeve 25. The design of the sealing ring 26 can seal the gap between the lower connecting sleeve 21 and the upper connecting sleeve 25, preventing dust and impurities from entering the inside of the lower connecting sleeve 21 and the upper connecting sleeve 25 and affecting the rotational flexibility.

[0029] In this implementation scheme, by slidably sleeving the lower sliding plate 22 and the sliding column 23 inside the lower connecting sleeve 21, and slidably sleeving the upper connecting sleeve 25 on the outside of the upper sliding plate 24, it is convenient to rotate and adjust the angle of the gripper 14 so as to perform gripping operations on long materials such as steel bars and steel pipes at different angles, improving the convenience of use. The design of the sealing ring 26 can seal the gap between the lower connecting sleeve 21 and the upper connecting sleeve 25, preventing dust and impurities from entering the inside of the lower connecting sleeve 21 and the upper connecting sleeve 25 and affecting the rotational flexibility.

[0030] For this new type of bridge grab crane, by clamping the block 13 into the slot 12 and rotating and tightening the screw 15, the block 13 and the gripper teeth 14 can be fixedly installed. By rotating and removing the screw 15, the block 13 loses its restraint, facilitating the removal of the gripper teeth 14 for maintenance and replacement, reducing the maintenance cost of the gripper 14; by slidably sleeving the lower sliding plate 22 and the sliding column 23 inside the lower connecting sleeve 21, and slidably sleeving the upper connecting sleeve 25 on the outside of the upper sliding plate 24, it is convenient to rotate and adjust the angle of the gripper 14 so as to perform gripping operations on long materials such as steel bars and steel pipes at different angles, improving the convenience of use. The design of the sealing ring 26 can seal the gap between the lower connecting sleeve 21 and the upper connecting sleeve 25, preventing dust and impurities from entering the inside of the lower connecting sleeve 21 and the upper connecting sleeve 25 and affecting the rotational flexibility.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel bridge grab crane, comprising a support base (1), characterized in that: Grippers (11) are installed on both sides of the support seat (1), and a slot (12) is provided at the lower end of the grippers (11), and a block (13) is clamped inside the slot (12), and a gripper tooth (14) is fixedly welded to one end of the block (13). A connecting seat (2) is fixedly welded to the upper end of the support seat (1), and a lower connecting sleeve (21) is fixedly welded to the upper end of the connecting seat (2), and a lower sliding plate (22) is slidably sleeved inside the lower connecting sleeve (21), and a sliding column (23) is fixedly welded to the upper end of the lower sliding plate (22), and an upper sliding plate (24) is fixedly welded to the upper end of the sliding column (23), and an upper connecting sleeve (25) is slidably sleeved on the outer side of the upper sliding plate (24), and a sealing ring (26) is slidably sleeved on the outer side of the sliding column (23).

2. A new type of bridge grab crane according to claim 1, characterized in that: The lower end of the gripper (11) is clamped with the clamping block (13), and the lower end of the gripper (11) is in close contact with the gripper teeth (14).

3. A new type of bridge grab crane according to claim 1, characterized in that: The interior of the clamping block (13) is connected to a screw (15) via a thread, and the lower end of the screw (15) is connected to the gripper (11) via a thread.

4. A new type of bridge grab crane according to claim 1, characterized in that: The inner sliding sleeve of the lower connecting sleeve (21) is connected to the sliding column (23), and the inner sliding sleeve of the upper connecting sleeve (25) is connected to the sliding column (23).

5. The novel bridge grab crane according to claim 1 is characterized in that: The upper end surface of the lower connecting sleeve (21) is slidably connected to a sealing ring (26), the upper end surface of the sealing ring (26) is slidably connected to an upper connecting sleeve (25), and a fixing block (27) is fixedly welded to the upper end of the upper connecting sleeve (25).

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