Crane for construction

Abstract

The utility model relates to the technical field of cranes, in particular to a construction crane which comprises two supporting strips, a sliding groove is formed in the bottom face of each supporting strip, two sliding strips are slidably connected to the inner wall of each sliding groove, and limiting blocks arranged at equal intervals are fixedly connected to the upper surface of each supporting strip. By arranging a sliding strip, a threaded block, a two-way threaded rod, a first screw rod, a connecting block and other components, the two-way threaded rod is rotated to rotate in a limiting block, the two-way threaded rod drives the threaded block to move, the threaded block drives the sliding strip to move, the sliding strip drives a clamping block to move, the first screw rod is rotated to drive the connecting block to move, and the connecting block drives the clamping block to move up and down; the effect that the clamping blocks clamp plates with different widths is achieved through the two-way threaded rods, the effect that multiple layers of plates are clamped is achieved through the first screws, the phenomenon that the two sides of the plates slip and fall off after the plates are hoisted is prevented by limiting the two sides of the plates, and construction accidents are prevented.

Description

Technical Field

[0001] The present application relates to the technical field of cranes, and in particular to a construction crane. Background Art

[0002] A crane refers to a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range. It is also called an overhead crane, overhead crane, or hoist. The working characteristic of the lifting equipment is intermittent movement, that is, the corresponding mechanisms of the actions of picking up materials, transporting, and unloading work alternately in one working cycle. The development and use of cranes in the market are becoming more and more extensive.

[0003] Through searching, Chinese patent announcement number CN217650714U discloses a crane for construction, including a support and a limiting device, the upper surface of the support is rotatably connected with a rotating block, the upper surface of the rotating block is fixedly connected with a motor, the end of the rotating block away from the motor is fixedly connected with a support rod, the surface of the motor is fixedly connected with a steel cable, the steel cable is slidably connected to one end of the support rod, the limiting device is arranged at one end of the steel cable, the limiting device includes a connecting hook and a limiting plate, the connecting hook is fixedly connected to one end of the steel cable, the limiting plate is rotatably connected to the inner wall of the connecting hook, and the surface of the connecting hook is fixedly connected with a limiting block. The utility model effectively limits the limiting plate by setting a limiting device, plays a role in limiting the connecting hook, reduces the situation that the material is separated from the inside of the connecting hook when the equipment is used, reduces the safety hazard of the equipment in use, and facilitates the normal use of the equipment.

[0004] With respect to the above-mentioned related technologies, the inventors found the following defects: in the above-mentioned scheme, when lifting square materials such as plates, the plates cannot be limited and fixed, resulting in imbalance at both ends of the plates. The plates are prone to fall off during the lifting process, leading to safety accidents and low safety. Utility Model Content

[0005] In order to improve the stability of equipment when lifting plates, the present application provides a construction crane.

[0006] The cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of two-piece support structure, and the cam is a kind of

[0007] Optionally, a special-shaped block is provided on the back side of one of the support bars, and the front and back sides of the special-shaped block are fixedly connected with screw rod 2, and the outer surface of each screw rod 2 is threadedly connected with a threaded barrel, and the ends of each threaded barrel that are away from each other are rotatably connected to the sides of the corresponding support bar that are close to each other.

[0008] Optionally, two connecting rods are fixedly connected inside the special-shaped block, and the outer surface of each connecting rod is slidably connected to two sleeves, and one end of each sleeve away from each other is fixedly connected to a side of the corresponding support bar close to each other.

[0009] Optionally, each of the support bars and the upper surface of the special-shaped block is fixedly mounted with plug-ins arranged at equal distances, the outer surface of each of the plug-ins is fixedly connected to a connecting rope, a connecting frame is provided above the special-shaped block, the other end of each connecting rope is fixedly connected to the interior of the connecting frame, and the interior of the connecting frame is fixedly connected to a rope.

[0010] Optionally, a base is provided on the right side of one of the support bars, a boss is fixedly connected to the upper surface of the base, and a connecting arm is rotatably connected to the outer surface of the boss.

[0011] Optionally, a positioning block 1 is fixedly mounted on the upper surface of the base, and a hydraulic rod is rotatably connected to the outer surface of the positioning block 1.

[0012] Optionally, the other end of the hydraulic rod is rotatably connected to a second positioning block, and an outer surface of the second positioning block is fixedly connected to an outer surface of the connecting arm.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. The utility model is provided with components such as a sliding bar, a threaded block, a bidirectional threaded rod, a screw rod 1, and a connecting block. The bidirectional threaded rod is rotated to rotate inside the limit block, the bidirectional threaded rod drives the threaded block to move, the threaded block drives the sliding bar to move, the sliding bar drives the clamping block to move, the screw rod 1 is rotated to drive the connecting block to move, and the connecting block drives the clamping block to move up and down. The bidirectional threaded rod is used to realize the effect of the clamping block clamping plates of different widths, and the screw rod 1 is used to realize the effect of clamping multi-layer plates. By restricting both sides of the plates, the plates are prevented from slipping and falling off on both sides after being lifted, thereby preventing construction accidents.

[0015] 2. The utility model arranges components such as plug-ins, connecting ropes, connecting frames, and ropes, and fixes the plug-ins with the support bars by placing them, and connects the connecting ropes with the corresponding plug-ins. A winding device is fixed to the other end of the rope to drive the rope to be wound, and the rope drives the connecting frame to move. The connecting frame drives the plug-in to move through the connecting rope, and drives the support bar to move through the plug-in, thereby driving the plate to rise. This device realizes multi-point support of the support bar by arranging multiple plug-ins and connecting ropes, thereby realizing multi-point support and lifting of the plate, thereby enhancing the stability of the plate after being lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure in the embodiment of the present application;

[0017] Figure 2 It is a structural diagram of the main view in an embodiment of the present application;

[0018] Figure 3 It is a structural schematic diagram of the connection relationship between the screw rod 2 and the threaded barrel in the embodiment of the present application;

[0019] Figure 4 It is a structural schematic diagram of the connection relationship between the support bar and the sliding bar in the embodiment of the present application.

[0020] Figure numerals: 1. support bar; 2. sliding groove; 3. sliding bar; 4. threaded block; 5. limit block; 6. bidirectional threaded rod; 7. round block; 8. screw one; 9. connecting block; 10. clamping block; 11. special-shaped block; 12. screw two; 13. threaded barrel; 14. connecting rod; 15. sleeve; 16. plug-in; 17. connecting rope; 18. connecting frame; 19. rope; 20. base; 21. boss; 22. connecting arm; 23. positioning block one; 24. positioning block two; 25. hydraulic rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-4 This application is described in further detail.

[0022] The present application embodiment discloses a construction crane. Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a construction crane comprises two support bars 1, each support bar 1 is provided with a sliding groove 2 on the bottom surface, and two sliding bars 3 are slidably connected to the inner wall of each sliding groove 2, and each support bar 1 is fixedly connected with limit blocks 5 arranged at equal distances on the upper surface. The support bars 1 are placed to position the sliding groove 2, and the sliding bars 3 are placed to slide inside the sliding groove, and the limiting effect of the sliding bars 3 is achieved by the contour of the sliding groove 2, and the limit blocks 5 are placed, and the corresponding limit blocks 5 are set on the same horizontal line.

[0023] See also Figure 2 A base 20 is provided on the right side of one of the support bars 1, a boss 21 is fixedly connected to the upper surface of the base 20, and a connecting arm 22 is rotatably connected to the outer surface of the boss 21 to prevent the base 20 from being moved and to position the boss 21, connect the boss 21 to the connecting arm 22, and adjust the distance between the base 20 and the support bar 1 through the connecting arm 22.

[0024] See also Figure 2 A positioning block 23 is fixedly installed on the upper surface of the base 20, and a hydraulic rod 25 is rotatably connected to the outer surface of the positioning block 23. The positioning block 23 is installed and the hydraulic rod 25 is placed. The positioning block 23 is used to position the hydraulic rod 25, and the angle change of the connecting arm 22 is achieved by the extension and retraction of the hydraulic rod 25.

[0025] See also Figure 2 The other end of the hydraulic rod 25 is rotatably connected to the positioning block 24, and the outer surface of the positioning block 24 is fixedly connected to the outer surface of the connecting arm 22. The positioning block 24 is positioned by the hydraulic rod 25, and the positioning block 24 is connected to the connecting arm 22. Through the rotation of the hydraulic rod 25, the positioning block 1 23 and the positioning block 24, the hydraulic rod 25 is extended and retracted to drive the angle change of the connecting arm 22.

[0026] See also Figure 3 A special-shaped block 11 is provided on the back of one of the support bars 1, and screw rods 12 are fixedly connected to the front and back of the special-shaped block 11. The position of the special-shaped block 11 is positioned by the support bar 1, and screw rods 12 are placed on the surface of the special-shaped block 11, which is set to be fixedly connected, and screw rods 12 are placed to rotate.

[0027] See also Figure 3 A connecting frame 18 is provided above the special-shaped block 11, and the other end of each connecting rope 17 is fixedly connected to the inside of the connecting frame 18. A rope 19 is fixedly connected to the inside of the connecting frame 18. The connecting frame 18 is placed and the connecting rope 17 is connected to it. The rope 19 is installed as a lifting component. The other end of the rope 19 is connected to the winding device, which facilitates the lifting of the plate while improving the safety of the device.

[0028] See also Figure 3 , plug-ins 16 arranged at equal distances are fixedly installed on the upper surface of each support bar 1 and the special-shaped block 11, and a connecting rope 17 is fixedly connected to the outer surface of each plug-in 16. The plug-in 16 is installed on the surface of the support bar 1 and the special-shaped block 11, and the connecting rope 17 is placed to connect the plug-in 16. Through the multi-point support of the plug-in 16, it is convenient to achieve a multi-point lifting effect on the plate and keep the balance on both sides.

[0029] See also Figure 3 Two connecting rods 14 are fixedly connected inside the special-shaped block 11, and two sleeves 15 are slidably connected to the outer surface of each connecting rod 14. The ends of each sleeve 15 that are away from each other are fixedly connected to the sides of the corresponding support bars 1 that are close to each other. The connecting rod 14 is positioned by the special-shaped block 11, and the sleeves 15 are placed to slide with the connecting rod 14. Through the connection between the sleeves 15 and the support bars 1, the limiting effect between the support bars 1 is achieved.

[0030] See also Figure 3 The outer surface of each screw rod 12 is threadedly connected with a threaded barrel 13, and the ends of each threaded barrel 13 that are away from each other are rotatably connected to the sides of the corresponding support bars 1 that are close to each other. The threaded barrel 13 is placed and connected to the screw rod 12, and the support bar 1 is connected to the threaded barrel 13 and set to rotate. The distance between the support bars 1 can be adjusted by rotating the threaded barrel 13 connected to the screw rod 12.

[0031] See also Figure 4 , a threaded block 4 is fixedly connected to the upper surface of each sliding bar 3, a bidirectional threaded rod 6 is arranged above each supporting bar 1, the outer surface of each bidirectional threaded rod 6 is rotationally connected to the inner part of the corresponding limit block 5, and the outer surface of each bidirectional threaded rod 6 is connected to the inner thread of the corresponding threaded block 4. The threaded block 4 is placed and the bidirectional threaded rod 6 is installed, and the bidirectional threaded rod 6 is connected to the threaded block 4 to realize the relative movement effect of the threaded block 4, and the limiting effect of the bidirectional threaded rod 6 is realized by the connection between the limit block 5 and the bidirectional threaded rod 6.

[0032] See also Figure 4 , each sliding bar 3 is fixedly connected to a circular block 7 on one side away from each other, and a screw rod 8 is rotatably connected to the inside of each circular block 7. The outer surface of each screw rod 8 is threadedly connected to a connecting block 9. The circular block 7 is placed to connect with the sliding bar 3, the screw rod 8 is positioned by the circular block 7, and the connecting block 9 is placed to connect with the screw rod 8. The movement effect of the connecting block 9 is achieved by the rotation of the screw rod 8.

[0033] See also Figure 4A clamping block 10 is fixedly connected to one side of each connecting block 9 that is close to each other, and the outer surface of each clamping block 10 is slidably connected to the inner side of the corresponding sliding bar 3. The clamping block 10 is placed in connection with the connecting block 9, and the clamping block 10 is connected to the sliding bar 3, and the sliding bar 3 is used to achieve a limiting effect on the clamping block 10.

[0034] The implementation principle of a construction crane in the embodiment of the present application is as follows: a plate is placed between the clamping blocks 10, the screw rod 1 8 is rotated to drive the connecting block 9 to move, the connecting block 9 drives the clamping block 10 to move, and the plate is clamped. Then the bidirectional threaded rod 6 is rotated to connect with the threaded block 4, and the sliding bar 3 is driven to move relatively through the threaded block 4, and the clamping block 10 is driven to move through the sliding bar 3 to clamp the plate. The threaded cylinder 13 is rotated to connect with the screw rod 2 12, and the support bar 1 is driven to move to adjust the distance between the support bars 1. The winding device drives the rope 19 to be wound up, and the rope 19 drives the connecting rope 17 to be pulled through the connecting frame 18. The connecting rope 17 drives the support bar 1 to move through the plug-in 16, so as to achieve the effect of driving the plate to rise.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A construction crane, comprising two support bars (1), characterized in that: The bottom surface of each support bar (1) is provided with a sliding groove (2), the inner wall of each sliding groove (2) is slidably connected to two sliding bars (3), the upper surface of each support bar (1) is fixedly connected to a limit block (5) arranged at an equal distance, the upper surface of each sliding bar (3) is fixedly connected to a threaded block (4), and a bidirectional threaded rod (6) is provided above each support bar (1), the outer surface of each bidirectional threaded rod (6) is rotatably connected to the inside of the corresponding limit block (5), and each bidirectional threaded rod (6) is rotatably connected to the inside of the corresponding limit block (5). The outer surface of the threaded rod (6) is connected to the internal thread of the corresponding threaded block (4); the side of each sliding bar (3) away from each other is fixedly connected to a circular block (7); the interior of each circular block (7) is rotatably connected to a screw rod (8); the outer surface of each screw rod (8) is threadedly connected to a connecting block (9); the side of each connecting block (9) close to each other is fixedly connected to a clamping block (10); the outer surface of each clamping block (10) is slidably connected to the interior of the corresponding sliding bar (3).

2. A construction crane according to claim 1, characterized in that: A special-shaped block (11) is provided on the back of one of the support bars (1), and the front and back of the special-shaped block (11) are fixedly connected to screw rods (12), and the outer surface of each screw rod (12) is threadedly connected to a threaded barrel (13), and the ends of each threaded barrel (13) that are away from each other are rotatably connected to the side of the corresponding support bar (1) that is close to each other.

3. A construction crane according to claim 2, characterized in that: Two connecting rods (14) are fixedly connected inside the special-shaped block (11), and the outer surface of each connecting rod (14) is slidably connected to two sleeves (15), and the ends of each sleeve (15) that are away from each other are fixedly connected to the sides of the corresponding support bars (1) that are close to each other.

4. A construction crane according to claim 2, characterized in that: The upper surface of each support bar (1) and the special-shaped block (11) is fixedly mounted with plug-ins (16) arranged at equal distances, the outer surface of each plug-in (16) is fixedly connected with a connecting rope (17), a connecting frame (18) is provided above the special-shaped block (11), the other end of each connecting rope (17) is fixedly connected to the inside of the connecting frame (18), and the inside of the connecting frame (18) is fixedly connected with a rope (19).

5. A construction crane according to claim 1, characterized in that: A base (20) is provided on the right side of one of the support bars (1); a boss (21) is fixedly connected to the upper surface of the base (20); and a connecting arm (22) is rotatably connected to the outer surface of the boss (21).

6. A construction crane according to claim 5, characterized in that: A positioning block (23) is fixedly mounted on the upper surface of the base (20), and a hydraulic rod (25) is rotatably connected to the outer surface of the positioning block (23).

7. A construction crane according to claim 6, characterized in that: The other end of the hydraulic rod (25) is rotatably connected to a second positioning block (24), and the outer surface of the second positioning block (24) is fixedly connected to the outer surface of the connecting arm (22).

Images