Lifting device

Abstract

The utility model relates to the technical field of cranes, and provides a hoisting device which comprises a counterweight bottom block, frame plate assemblies are arranged on the two sides of the top face of the counterweight bottom block, an oil pressure pipe assembly is arranged in the counterweight bottom block, and by arranging the oil pressure pipe assembly, an emergency stop assembly and a hoisting assembly, the effect is achieved; under the condition that oil cannot be compressed, oil pressure in an oil pressure pipe assembly is adjusted, oil is conveyed into an emergency stop assembly, so that a clamping plate is ejected upwards, a protruding disc is stopped, the effect of stopping movement is achieved when an object is hoisted by a hoisting assembly, and due to the fact that two pressing plates are arranged, the movement of the hoisting assembly is stopped; the oil pressure in the oil pressure pipe assembly is controlled, so that in the working process of the crane assembly, a single person cannot control the two pressing plates to work at the same time and cannot control the crane assembly by the single person, the other person can find the accident in time when the person has the accident, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and more specifically, to a lifting device.

[0002] Lifting devices are used to lift objects from low places to high places, reducing the need for manpower and improving the efficiency of handling. However, due to the different site conditions and the different goods being handled, the lifting devices required also need to be modified according to the site conditions. Background Technology

[0003] A search revealed an existing patent (publication number: CN 218520962 U) that discloses a lifting device. This device comprises a moving platform, a telescopic support column, and a lifting attachment. The moving platform is equipped with pulleys that slide in contact with the railway. The telescopic support column has a support portion at its telescopic end, which moves the support portion along the height of the moving platform. The support portion, in turn, drives the lifting attachment to rotate horizontally. By implementing this patent, the lifting direction and the height of the lifting attachment's fulcrum can be adjusted, thereby controlling the lifted object. This allows for the lifting and transportation of materials in situations with limited space, especially on railways where lifting positions are limited.

[0004] However, there are still some shortcomings in the above solution. Since the lifting device can be operated by a single person, if a situation occurs while a single person is working, it may not be detected by the personnel in time.

[0005] In view of this, the present invention proposes a lifting device. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lifting device to solve the problem that, since the lifting device can be operated by a single person, if an accident occurs while a single person is working, it cannot be detected by personnel in time.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a lifting device, including a counterweight base block, with frame plate assemblies provided on both sides of the top surface of the counterweight base block, and a hydraulic pipe assembly provided inside the counterweight base block. The hydraulic pipe assembly includes an oil storage pipe, with guide pipes penetrating and connecting to both ends of the top surface of the oil storage pipe. The top ends of the two guide pipes are connected to a distribution pipe. The hydraulic pipe assembly also includes a one-way valve and a stop valve. A diversion connection pipe is penetrating and connecting to the upper end of the middle part of the distribution pipe, and one end of the distribution pipe is sequentially connected to the one-way valve and the stop valve. Emergency stop components are provided at both ends of the diversion connection pipe.

[0008] Preferably, the support plate assembly includes a support plate, two support plates are rotatably connected to each other on their inner sides, a crossbeam cylinder is fixed between the two crossbeam cylinders, and a lifting assembly is provided in the middle of the crossbeam cylinder.

[0009] Preferably, the emergency stop assembly includes a connecting cylinder, the bottom end of which is connected to the top ends of both sides of the diversion connecting pipe. A movable rod is fixedly connected to the output end of the connecting cylinder, and a snap-fit ​​plate is fixedly connected to the top end of the movable rod. The snap-fit ​​plate engages with and limits the protruding disc on the surface of the movable rod.

[0010] Preferably, square grooves are provided on both sides of the top surface of the counterweight base, and pressing plates are fixedly connected to the four corners of the square grooves, with springs fixedly attached to the tops of the multiple pressing plates.

[0011] Preferably, a pressing rod is fixedly connected to the middle of the bottom surface of each of the two pressing plates, and the pressing rod is arranged inside the two ends of the oil distribution pipe to slide up and down.

[0012] Preferably, the lifting assembly includes a lifting rod, which is fixed at the middle end of the crossbeam cylinder. The lifting assembly also includes a positioning element, which is fixedly disposed at the upper end of one side of the counterweight base block.

[0013] Preferably, the lifting assembly further includes a hydraulic rod, the top end of which is rotatably connected to one end of the lifting rod, and the bottom end of which is rotatably connected to the upper end of the positioning member.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model achieves the following effects by incorporating a hydraulic pipe assembly, an emergency stop assembly, and a lifting assembly: Utilizing the incompressible state of the oil, the hydraulic pressure inside the hydraulic pipe assembly is adjusted to deliver oil to the emergency stop assembly, thereby pushing the locking plate upwards. Because the protruding plate is stopped, the lifting assembly effectively halts movement when lifting objects. Since the hydraulic pressure inside the hydraulic pipe assembly is controlled by two pressing plates, a single person cannot simultaneously operate both pressing plates during operation, preventing single-person control. This also allows for timely detection by another person in case of an accident, thus improving safety. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the lifting device of this utility model;

[0017] Figure 2 This is a schematic diagram of the frame assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the hydraulic pipe assembly structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the distribution structure of the hydraulic pipe assembly inside the counterweight base block of this utility model.

[0020] 1. Counterweight base block; 2. Frame assembly; 201. Elevating plate; 202. Protruding plate; 203. Crossbeam cylinder; 3. Hydraulic pipe assembly; 301. Oil reservoir pipe; 302. Guide pipe; 303. Oil distribution pipe; 304. Check valve; 305. Stop valve; 306. Diverter connection pipe; 4. Emergency stop assembly; 401. Connecting cylinder; 402. Movable rod; 403. Clip plate; 5. Lifting assembly; 501. Lifting rod; 502. Hydraulic rod; 503. Positioning component; 6. Press plate; 7. Spring; 8. Press rod. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0022] This utility model provides a lifting device, including a counterweight base block 1. The counterweight base block 1 provides counterweight during use, facilitating the lifting of objects. Frame plate assemblies 2 are provided on both sides of the top surface of the counterweight base block 1, which elevate the lifting assembly 5 during use. A hydraulic pipe assembly 3 is provided inside the counterweight base block 1. The hydraulic pipe assembly 3 allows the hydraulic pressure inside to be adjusted by pressing a plate 6, thereby driving the emergency stop assembly 4. The hydraulic pipe assembly 3 includes an oil storage pipe 301, which stores oil during use. Both ends of the top surface of the oil storage pipe 301 are connected to guide pipes 302, which allow the oil inside the oil storage pipe 301 to flow through. When intervened, the oil is discharged. The top ends of the two guide pipes 302 are connected to the oil distribution pipe 303. The oil distribution pipe 303 allows the pressing rods 8 on both sides of the counterweight base 1 to intervene in the oil flow. The hydraulic pipe assembly 3 also includes a one-way valve 304. The one-way valve 304 prevents the oil discharged from the diversion connection pipe 306 from entering the oil storage pipe 301 through the guide pipe 302 on one side. The stop valve 305 allows the oil to be discharged through the stop valve 302 during use. When 5 is in the open or closed state, the oil pressure inside the hydraulic pipe assembly 3 is adjustable. The upper end of the middle part of the oil distribution pipe 303 is connected to the diversion connection pipe 306. Through the setting of the diversion connection pipe 306, the oil inside the oil storage pipe 301 can be diverted into the two emergency stop components 4 during use. One end of the oil distribution pipe 303 is connected to the one-way valve 304 and the stop valve 305 in sequence. Both ends of the diversion connection pipe 306 are equipped with emergency stop components 4. Through the setting of the emergency stop components 4, the frame assembly 2 can be stopped during use.

[0023] The scaffold assembly 2 includes a scaffold plate 201. The scaffold plate 201 facilitates the locking plate 403 to limit and stop the lifting assembly 5 during use. The two scaffold plates 201 are rotatably connected to each other on their inner sides. The protruding plate 202 can be locked to the plate 403 when needed. A crossbeam cylinder 203 is fixed between the two protruding plates 202. The crossbeam cylinder 203 facilitates the installation of the lifting assembly 5 during use. The lifting assembly 5 is located in the middle of the crossbeam cylinder 203, which facilitates the lifting of objects during use.

[0024] The emergency stop assembly 4 includes a connecting cylinder 401. The connecting cylinder 401 connects to the diversion connecting pipe 306 of the hydraulic pipe assembly 3 during use, allowing oil to enter the connecting cylinder 401 and push out the movable rod 402. The bottom end of the connecting cylinder 401 is connected to the top ends of both sides of the diversion connecting pipe 306. The output end of the connecting cylinder 401 is fixedly connected to the movable rod 402. The movable rod 402 closes the interior of the connecting cylinder 401 during use, creating a seal. The top end of the movable rod 402 is fixedly connected to a snap-fit ​​plate 403. The snap-fit ​​plate 403 snaps onto the protruding disc 202 during use, and the snap-fit ​​plate 403 limits the engagement of the protruding disc 202.

[0025] The counterweight base 1 has square grooves on both sides of its top surface, and each of the four corners of the square groove is fixedly connected to a pressing plate 6. The pressing plate 6 allows the user to step on it and control the hydraulic pressure. The tops of the multiple pressing plates 6 are fixed with springs 7. The springs 7 allow the pressing plates 6 to rebound easily during use.

[0026] Both pressing plates 6 have pressing rods 8 fixedly connected to the middle of their bottom surfaces. The pressing rods 8 allow for the control of the lifting rod 501 to lift objects by extending and retracting them. The pressing rods 8 are located inside the oil distribution pipe 303 and slide up and down.

[0027] The lifting assembly 5 includes a lifting rod 501, which is fixed at the middle end of the crossbeam cylinder 203. The lifting assembly 5 also includes a positioning element 503. By setting the positioning element 503, the hydraulic rod 502 can be installed during use. The positioning element 503 is fixedly set at the upper end of one side of the counterweight base block 1.

[0028] The lifting assembly 5 also includes a hydraulic rod 502. The hydraulic rod 502 allows for extension and retraction during use, controlling the pitch angle of the boom 501. The top end of the hydraulic rod 502 is rotatably connected to one end of the boom 501, and the bottom end of the hydraulic rod 502 is rotatably connected to the upper end of the positioning member 503.

[0029] The working process of this utility model is as follows:

[0030] The device has two pressing plates 6, one near the one-way valve 304 and the other away from it. When a person steps on one of the pressing plates 6, the oil moves into the oil storage pipe 301. At this time, the one-way valve 304 prevents the oil from moving towards the other pressing plate 6. Since the oil cannot pass through the one-way valve 304, it impacts the emergency stop assembly 4 when it is incompressible. By adjusting the oil pressure inside the hydraulic pipe assembly 3, the oil is delivered into the emergency stop assembly 4, thereby pushing the locking plate 403 upward. Because the protruding plate 202 is stopped, the lifting assembly 5 achieves the effect of stopping the movement when lifting objects. When a person steps on the other pressing plate 6, the stop valve 305 opens, and the oil can flow back into the oil storage pipe 301 through the one-way valve 304 and the stop valve 305. The reduced oil pressure inside the connecting cylinder 401 causes the snap-fit ​​plate 403 to adjust downwards, thus loosening the protruding disc 202.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0033] Finally: 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 lifting device, comprising a counterweight base block (1), characterized in that, The counterweight base (1) is provided with a frame plate assembly (2) on both sides of the top surface. The counterweight base (1) is provided with a hydraulic pipe assembly (3). The hydraulic pipe assembly (3) includes an oil storage pipe (301). Both ends of the top surface of the oil storage pipe (301) are connected to a guide pipe (302). The top ends of the two guide pipes (302) are connected to a distribution pipe (303). The hydraulic pipe assembly (3) also includes a one-way valve (304) and a stop valve (305). The upper end of the middle part of the distribution pipe (303) is connected to a diversion connection pipe (306). One end of the distribution pipe (303) is connected to the one-way valve (304) and the stop valve (305) in sequence. Both ends of the diversion connection pipe (306) are provided with an emergency stop assembly (4).

2. The lifting device according to claim 1, characterized in that, The frame assembly (2) includes a raised plate (201), and two raised plates (201) are rotatably connected to each other on their inner sides by protruding discs (202). A crossbeam cylinder (203) is fixed between the two protruding discs (202), and a lifting assembly (5) is provided in the middle of the crossbeam cylinder (203).

3. A lifting device according to claim 1, characterized in that, The emergency stop assembly (4) includes a connecting cylinder (401), and the bottom end of the connecting cylinder (401) is connected to the top ends of both sides of the diversion connecting pipe (306). The output end of the connecting cylinder (401) is fixedly connected to a movable rod (402), and the top end of the movable rod (402) is fixedly connected to a snap-fit ​​plate (403), and the snap-fit ​​plate (403) snaps and limits the surface protrusion plate (202).

4. A lifting device according to claim 1, characterized in that, The counterweight base (1) has square grooves on both sides of its top surface, and pressing plates (6) are fixedly connected to the four corners of the square grooves. The tops of the multiple pressing plates (6) are all fixed with springs (7).

5. A lifting device according to claim 4, characterized in that, Both pressing plates (6) are fixedly connected to the middle of their bottom surfaces with pressing rods (8), and the pressing rods (8) are set inside the two ends of the oil distribution pipe (303) to slide up and down.

6. A lifting device according to claim 2, characterized in that, The lifting assembly (5) includes a lifting rod (501), which is fixed at the middle end of the crossbeam tube (203). The lifting assembly (5) also includes a positioning element (503), which is fixedly installed on the upper end of one side of the counterweight base block (1).

7. A lifting device according to claim 6, characterized in that, The lifting assembly (5) also includes a hydraulic rod (502), the top end of which is rotatably connected to one end of the lifting rod (501), and the bottom end of which is rotatably connected to the upper end of the positioning member (503).

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