A lifting device

Abstract

A lifting and transporting device, wherein the top plate and the bottom plate are connected by a skeleton rod to form a support frame, a plurality of telescopic pins are radially arranged on the bottom plate, a linkage rod for driving the telescopic pins to extend and retract is inserted into the middle of the top plate and the bottom plate through a main spring, a telescopic pin button assembly is arranged on the top of the linkage rod, and a tapered rod is arranged on the bottom of the linkage rod. The present invention is mainly used for taking and placing locking rings in a lifting and transporting box group, taking out the stacked locking rings in the box group as a whole, and lifting and transporting them to a designated place, and realizing one-key shedding through the button of the device, and can be used repeatedly. The present invention has the advantages of convenient operation and one-key shedding.

Description

Technical Field

[0001] The invention relates to a lifting device. Background Art

[0002] The locking ring is mainly used for the connection and locking of the socket steel pipeline. During the pipeline laying process, it needs to be taken out from the box group and transported to the vicinity of the pipeline. At present, it is mainly picked up from the box group manually and carried to the vicinity of the pipeline in a canvas bag for distribution. Whether it is taking and placing or later recycling, it is relatively troublesome. It is impossible to quickly take out the locking ring, nor can it be quickly stacked back into the box group, and a lot of time is consumed in the distribution and withdrawal process. The present invention can be quickly grabbed and dropped near the pipeline with one click. During the recycling process, it is automatically corrected and stacked, and completely stored in the accessory box group. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a lifting device which is easy to operate, can be detached with one key, can quickly take out the locking ring in the box group and lift it to the pipeline accessories.

[0004] The technical solution of the present invention is as follows: the top plate and the bottom plate are connected via a skeleton rod to form a support frame, a plurality of telescopic pins are radially arranged on the bottom plate, a linkage rod for driving the telescopic pins to extend and retract is inserted into the middle of the top plate and the bottom plate via a main spring, a telescopic pin button assembly is arranged on the top of the linkage rod, and a conical rod is arranged on the bottom of the linkage rod.

[0005] The outer end of the telescopic pin is an inclined surface, and the inner end of the telescopic pin is a hemispherical part matched with the tapered rod.

[0006] The telescopic pin is movably mounted on a through hole on the chassis via a telescopic pin spring.

[0007] The inner end of the telescopic pin spring abuts against the step portion in the middle of the telescopic pin, and the outer end of the telescopic pin spring abuts against the threaded tube, which is threadedly connected to the end of the through hole.

[0008] The telescopic pin button assembly includes a telescopic pin button, a movable ramp block, a telescopic tongue, and a telescopic tongue limiting bolt. The lower end of the telescopic pin button contacts the ramp surface of the movable ramp block via a sliding member. The telescopic tongue is horizontally arranged in the middle of the movable ramp block. The telescopic tongue and a linkage rod lock pin spring for pushing the telescopic tongue to extend and retract are sleeved on the telescopic tongue limiting bolt. A clearance hole matching the telescopic tongue is opened on the side of the linkage rod; the telescopic pin button is installed in the linkage rod pressing sleeve on the upper part of the linkage rod via a retaining ring.

[0009] One end of the telescopic tongue is provided with a blind hole for assembly with a telescopic tongue limiting bolt, and the other end of the telescopic tongue is a bevel end.

[0010] A telescopic tongue retaining ring is arranged in the linkage rod, a transition fit is formed between the movable ramp block and the telescopic tongue via a cross slot pan head screw, and a yielding through hole matched with the cross slot pan head screw is arranged on the telescopic tongue retaining ring.

[0011] A handle ring is arranged on the upper surface of the top plate, and the handle is arranged on the handle ring. A linkage rod adjustment sleeve is arranged on the lower surface of the top plate, and a locking hole matched with the telescopic tongue is opened on the linkage rod adjustment sleeve.

[0012] A limit bracket assembly is provided in the middle of the linkage rod, and the limit bracket assembly includes a sleeve assembled with the linkage rod, a connecting rod connected to the periphery of the sleeve, and the connecting rod is connected to the skeleton rod. One end of the main spring is against the main spring retaining ring, and the other end of the main spring is against the sleeve in the middle of the limit bracket assembly.

[0013] A cylindrical pin is installed at the linkage rod at the bottom of the linkage rod adjustment sleeve to prevent the linkage rod from moving upward during assembly, causing the telescopic tongue to pop out.

[0014] The invention is mainly used for taking and placing locking rings in a lifting and transporting box group, taking out the stacked locking rings in the box group as a whole, lifting and transporting them to a designated location, and realizing one-touch shedding through a button of the device, so that the locking rings can be used repeatedly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 yes Figure 1 AA section view.

[0017] Figure 3 yes Figure 2 A magnified view of part I.

[0018] Figure 4 yes Figure 2 Enlarged view of the J part.

[0019] Figure 5 It is the action process of the telescopic pin button assembly.

[0020] Figure 6 It is a usage process diagram of the present invention.

[0021] Figure 7 It is a usage state diagram of the present invention.

[0022] In the figure, 1, cylindrical pin, 2, skeleton rod, 3, top plate, 4, handle ring, 5, handle, 6, linkage rod pressing sleeve, 7, telescopic pin button assembly, 8, elastic retaining ring for hole, 9, movable ramp block, 10, telescopic tongue, 11, linkage rod locking pin spring, 12, telescopic tongue limiting bolt, 13, linkage rod adjusting sleeve, 14, telescopic tongue retaining ring, 15, cross slot pan head screw, 16, hexagon socket cone end set screw, 17, linkage rod, 18, limiting bracket assembly, 19, tapered rod, 20, telescopic pin, 21, telescopic pin spring, 22, threaded pipe, 23, chassis steel plate, 24, main spring, 25, main spring retaining ring. DETAILED DESCRIPTION

[0023] Figure 1-4In the figure, the top plate 3 and the bottom plate steel plate 23 are connected around the frame rod 2 to form a support frame, and the linkage rod 17 is inserted into the middle of the top plate 3 and the bottom plate through the main spring 24. One end of the main spring 24 abuts against the main spring retaining ring 25, and the other end of the main spring 24 abuts against the sleeve in the middle of the limit bracket assembly 18. The upper part of the linkage rod 17 is equipped with a telescopic pin button assembly 7, and the linkage rod pressing sleeve 6 is threadedly connected to the upper end of the linkage rod 17. The lower part of the linkage rod 17 is provided with a tapered rod 19. The upper surface of the top plate 3 is provided with a handle ring 4, and the handle 5 is installed at the handle ring 4. The lower surface of the top plate 3 is provided with a linkage rod adjustment sleeve 13, and the linkage rod adjustment sleeve 13 is provided with a locking hole that matches the telescopic tongue 10. The linkage rod at the lower part of the linkage rod adjustment sleeve 13 is equipped with a cylindrical pin 1. The telescopic pin button assembly 7 includes a telescopic pin button, a movable ramp block 9, a telescopic tongue 10, and a telescopic tongue limiting bolt 12. The lower end of the telescopic pin button contacts the ramp surface of the movable ramp block 9 through a sliding member. The telescopic tongue 10 is horizontally arranged in the middle of the movable ramp block 9. The telescopic tongue 10 and a linkage rod lock pin spring 11 for pushing the telescopic tongue 10 to extend and retract are sleeved on the telescopic tongue limiting bolt 12. A clearance hole matching the telescopic tongue 10 is opened on the side of the linkage rod 17. The elastic retaining ring 8 for the hole is located in the linkage rod pressing sleeve 6 to prevent the telescopic pin button assembly 7 from falling off from the linkage rod pressing sleeve 6. The movable ramp block 9 and the telescopic tongue 10 are transitionally matched, and the positional relationship between them is determined according to the assembly requirements. They are locked with a cross-slot pan head screw 15. The telescopic tongue retaining ring 14 is mainly used to prevent the telescopic tongue 10 from falling off in the linkage rod 17 under the pressure of the telescopic pin button assembly 7, and plays a limiting role. Three threaded holes are drilled in a circular array on the linkage rod 17 and the telescopic tongue retaining ring 14 is locked with a hexagonal cone-end tightening screw 16. The limit bracket assembly 18 is composed of a limit bracket and a steel sleeve. The limit bracket is welded to the skeleton rod 2, and mainly plays the role of limiting and guiding the linkage rod 17. The limit bracket assembly 18 and the linkage rod 17 are clearance-matched and can slide freely. The chassis steel plate 23 has three through holes distributed in a circular array. The telescopic pin 20 is inserted into the through hole of the chassis steel plate 23, and then the telescopic pin spring 21 is inserted into the telescopic pin 20. Finally, the threaded tube 22 is locked on the end threaded mouth of the through hole of the chassis steel plate 23 through its own thread to block the telescopic pin spring 21, thereby completing the assembly of the telescopic pin 20.

[0024] Figure 5 , 6 In the present invention, the use process is as follows:

[0025] The first step is to insert the lifting device into the block of the locking ring box, correct the locking ring in the block through the three skeleton rods 2, and put all of them into the lifting device to ensure that the chassis steel plate 23 passes through the locking ring at the bottom of the block.

[0026] In the second step, press the linkage rod pressing sleeve 6 on the top of the lifting device with your fingers, driving the tapered rod 19 at the bottom of the linkage rod 17, and pushing the three telescopic pins 20 on the chassis steel plate 23 outward through the inclined surface of the tapered rod. The small inclined surface at the top of the telescopic pin 20 just ends under the locking ring to ensure that all the locking rings are lifted out; at the same time, the telescopic tongue 10 enters the square notch on the linkage rod adjusting sleeve 13 under the push of the linkage rod locking pin spring 11. At this time, under the action of the main spring 24 and the telescopic pin spring 21, the entire linkage rod 17 receives the upward thrust first, but the telescopic tongue 10 is limited and locked with the linkage rod adjusting sleeve 13.

[0027] The third step is to hold the handle 5 tightly and lift the lifting device together with all the locking rings in the block to the designated location, press the telescopic pin button assembly 7, and the movable ramp block 9 will shrink inward under the action of the pulley in the telescopic pin button assembly 7 and slide on the telescopic pin limit bolt 12. When the telescopic tongue 10 is completely separated from the linkage rod adjustment sleeve 13, the entire linkage rod 17 returns to its initial position, the three telescopic pins 20 in the chassis steel plate 23 shrink inward, and the locking rings on the lifting device all fall off.

[0028] in, Figure 7 This is a diagram showing the use of the four locking rings when using this lifting device.

Claims

1. A lifting and transporting device, characterized in that: The top plate (3) and the bottom plate are connected via a frame rod (2) to form a support frame. A plurality of telescopic pins (20) are radially arranged on the bottom plate. A linkage rod (17) for driving the telescopic pins to extend and retract is inserted into the middle of the top plate (3) and the bottom plate via a main spring (24). A telescopic pin button assembly (7) is arranged on the top of the linkage rod (17). A tapered rod (19) is arranged on the bottom of the linkage rod (17). A handle ring (4) is provided on the upper surface of the top plate (3), and a handle (5) is mounted on the handle ring (4). A linkage rod adjustment sleeve (13) is provided on the lower surface of the top plate (3), and a locking hole is provided on the linkage rod adjustment sleeve (13) that matches the telescopic tongue (10); The telescopic pin button assembly (7) comprises a telescopic pin button, a movable ramp block (9), a telescopic tongue (10), and a telescopic tongue limiting bolt (12); the lower end of the telescopic pin button contacts the ramp surface of the movable ramp block (9) via a sliding member; the telescopic tongue (10) is horizontally arranged in the middle of the movable ramp block (9); the telescopic tongue (10) and a linkage rod lock pin spring (11) for pushing the telescopic tongue (10) to extend and retract are sleeved on the telescopic tongue limiting bolt (12); a side portion of the linkage rod (17) is provided with a clearance hole that matches the telescopic tongue (10); the telescopic pin button is installed in a linkage rod pressing sleeve (6) at the upper portion of the linkage rod (17) via a retaining ring; The usage process is as follows: The first step is to insert the lifting device into the block of the locking ring box, correct the locking ring in the block through the three frame rods (2), and put the lifting device into the lifting device completely, ensuring that the chassis steel plate (23) passes through the locking ring at the bottom of the block; In the second step, the linkage rod pressing sleeve (6) at the top of the lifting device is pressed by the finger, driving the conical rod (19) at the bottom of the linkage rod (17), and the three telescopic pins (20) on the chassis steel plate (23) are pushed outward through the inclined surface of the conical rod. The small inclined surface at the top of the telescopic pin (20) just ends under the locking ring, ensuring that all the locking rings are fully raised; at the same time, the telescopic tongue (10) enters the square notch on the linkage rod adjustment sleeve (13) under the push of the linkage rod lock pin spring (11). At this time, under the action of the main spring (24) and the telescopic pin spring (21), the entire linkage rod (17) receives the first upward thrust, but the telescopic tongue (10) is limited and locked with the linkage rod adjustment sleeve (13); The third step is to hold the handle (5) tightly and lift the lifting device together with all the locking rings in the block to the designated location, press the telescopic pin button assembly (7), and the movable ramp block (9) will retract inwards under the action of the pulley in the telescopic pin button assembly (7) and slide on the telescopic pin limit bolt (12). When the telescopic tongue (10) and the linkage rod adjustment sleeve (13) are completely separated, the entire linkage rod (17) returns to the initial position, the three telescopic pins (20) in the chassis steel plate (23) retract inwards, and the locking rings on the lifting device all fall off.

2. The lifting device according to claim 1, characterized in that: The outer end of the telescopic pin (20) is an inclined surface, and the inner end of the telescopic pin (20) is a hemispherical portion that matches the tapered rod.

3. The lifting device according to claim 1, characterized in that: The telescopic pin (20) is movably mounted at a through hole on the chassis via a telescopic pin spring (21).

4. The lifting device according to claim 3, characterized in that: The inner end of the telescopic pin spring (21) abuts against the step portion in the middle of the telescopic pin (20), and the outer end of the telescopic pin spring (21) abuts against the threaded tube (22), which is threadedly connected to the end of the through hole.

5. The lifting device according to claim 1, characterized in that: One end of the telescopic tongue (10) is provided with a blind hole for assembly with the telescopic tongue limit bolt (12), and the other end of the telescopic tongue (10) is a bevel end.

6. The lifting device according to claim 1, characterized in that: A telescopic tongue retaining ring (14) is installed in the linkage rod (17), and a transition fit is formed between the movable ramp block (9) and the telescopic tongue (10) via a cross-grooved pan head screw (15), and a clearance through hole matching the cross-grooved pan head screw (15) is provided on the telescopic tongue retaining ring (14).

7. The lifting device according to claim 1, characterized in that: A limit bracket assembly (18) is provided in the middle of the linkage rod (17). The limit bracket assembly (18) comprises a sleeve assembled with the linkage rod and a connecting rod connected to the periphery of the sleeve. The connecting rod is connected to the skeleton rod (2). One end of the main force spring (24) abuts against the main force spring retaining ring (25), and the other end of the main force spring (24) abuts against the sleeve in the middle of the limit bracket assembly (18).

8. The lifting device according to claim 1, characterized in that: A cylindrical pin (1) is mounted on the linkage rod at the lower part of the linkage rod adjustment sleeve (13).

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