Counterweight-adjustable hoisting combination device and operation method

Abstract

The invention discloses a counterweight-adjustable hoisting combination device and an operation method, and relates to the field of hoisting instruments, the counterweight-adjustable hoisting combination device comprises a hoisting mechanism and a counterweight block mechanism, the hoisting mechanism comprises a hoisting assembly, one side of the hoisting assembly is slidably connected with a placing assembly, and the hoisting assembly is further rotatably connected with a driving frame assembly; a connecting chain assembly is further arranged on one side of the driving frame assembly. The balancing weight mechanism comprises a bottom weight assembly clamped and embedded on the placing assembly, and a plurality of standard weight assemblies are clamped and embedded on the bottom weight assembly; through the combination of the bottom weight assembly and the plurality of detachable standard weight assemblies, flexible adjustment of the counterweight of the hoisting equipment is realized, and through the design, a user can quickly change the total weight of the hoisting equipment according to actual requirements, so that the hoisting equipment adapts to hoisting tasks of different weights and sizes, and the universality and practicability of the equipment are improved.

Description

Technical Field

[0001] The invention belongs to the field of hoisting equipment, and in particular relates to a hoisting assembly device with adjustable counterweight and an operating method. Background Art

[0002] Traditional lifting equipment usually adopts a fixed counterweight design, that is, the weight and structure of the counterweight cannot be changed after the equipment is manufactured. This type of lifting equipment with fixed counterweights has many limitations when facing different lifting tasks. First, when lighter objects need to be lifted, excessive fixed counterweights will not only waste energy, but may also increase the operating cost and difficulty of the equipment. For example, in some small construction projects, when lifting lightweight building materials, excessive fixed counterweights will increase energy consumption during equipment startup and operation, and reduce the mobility of the equipment.

[0003] Secondly, when lifting heavier objects, the fixed counterweight may not provide sufficient stability, thus increasing the safety risk of the lifting operation. In the construction of large bridges, when large bridge components need to be lifted, the lifting equipment is prone to shaking or even overturning during the lifting process due to insufficient fixed counterweight, which seriously threatens construction safety.

[0004] In addition, the demands for lifting equipment vary greatly between different industries and engineering projects of different sizes. Some special industries, such as precision instrument installation and offshore operations, require extremely high precision and flexibility in the adjustment of the counterweight of lifting equipment. Traditional fixed counterweight lifting equipment cannot meet these special requirements, limiting its application in these fields.

[0005] To sum up, the problem of counterweight fixation in existing lifting equipment seriously restricts its application in diversified engineering scenarios. There is an urgent need for a lifting combination device that can flexibly adjust the counterweight according to the requirements of the lifting task to improve the versatility, safety and work efficiency of the lifting equipment. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a lifting assembly device with adjustable counterweight and an operating method, so as to solve the problem that the counterweight of traditional lifting equipment in the prior art is often fixed and cannot be flexibly adjusted according to the requirements of the lifting task.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: A counterweight adjustable lifting assembly device, comprising a lifting mechanism and a counterweight block mechanism: The hoisting mechanism comprises a hoisting assembly, one side of which is slidably connected to a placement assembly, the hoisting assembly is also rotatably connected to a drive frame assembly, and one side of the drive frame assembly is also provided with a connection chain assembly; The counterweight block mechanism comprises a bottom weight component which is clamped and embedded on a placement component, and a plurality of standard weight components are clamped and embedded on the bottom weight component.

[0008] Preferably, the hoisting assembly includes a support column, one side of the bottom of the support column is fixedly connected to a counterweight adjustment platform, the upper side of the counterweight adjustment platform is fixedly installed with an axle frame, one side of the counterweight adjustment platform is also fixedly connected to a weight storage rack, the lower end of the outer side of the support column is also fixedly connected to a positioning ring, the upper side of the support column is also rotatably connected to a rotating arm through a bearing, and one end of the rotating arm is installed with a hanging chain; The placement component is slidably embedded in the counterweight adjustment platform, the driving frame component is rotatably embedded in the shaft frame, the connecting chain component can be embedded in the positioning ring, and the bottom weight component can be hung on the hanging chain.

[0009] Preferably, a winch is also installed on the other end of the rotating arm away from the hanging chain.

[0010] Preferably, the placement assembly comprises a placement rack, the outer side of the placement rack is fixedly connected with a lifting rod, and the bottom of the placement rack is fixedly connected with a plurality of guide rods; The placing frame is inserted into the counterweight adjusting platform through the guide rod limiting sliding card, and the lifting rod is inserted into the driving frame assembly.

[0011] Preferably, the driving frame assembly comprises a driving frame body, a shaft rod is fixedly connected to the middle position of the driving frame body, a slide frame is fixedly connected to one end of the driving frame body, and an operating rod is fixedly connected to the other end of the driving frame body; The driving frame body is rotatably engaged with the shaft frame through the shaft rod, and the lifting rod is limitedly engaged with the slide slot frame. Rotating the driving frame body can make the slide slot frame drive the lifting rod to move.

[0012] Preferably, the connecting chain assembly comprises a positioning chain, one end of the positioning chain is fixedly connected to a limiting ring, and the other end of the positioning chain is fixedly connected to a hook; The limiting ring is rotatably embedded in the operating rod, and the hook can be embedded in the positioning ring.

[0013] Preferably, the bottom weight assembly comprises a metal rod, the lower end of the metal rod is fixedly connected with a clamp ring 1, the lower end of the clamp ring 1 is fixedly connected with a basic weight, and the upper end of the metal rod is fixedly connected with a hanging ring; A plurality of the standard weight components can be embedded on the basic weight through a clamp ring and a limit clamp.

[0014] Preferably, the standard weight assembly comprises a standard weight body, a guide groove is provided on one side of the standard weight body, a limited bottom groove is provided at the lower end of the standard weight body, and a second clamping ring is fixedly connected to the upper end of the standard weight body; The limiting bottom groove can be sleeved on the adjacent second clamping ring, and the limiting bottom groove can be sleeved on the outer side of the first clamping ring.

[0015] An operating method of a counterweight adjustable lifting assembly device comprises the following steps: S1: Adjust the counterweight and combine the weight components according to the actual requirements of the lifting task: S1.1 Determine the required counterweight value by calculation based on the weight, volume, shape and lifting environment of the object to be hoisted, combined with the technical parameters of the equipment; strictly follow the equipment safety operating procedures to ensure that the counterweight is adjusted within the rated load range of the equipment; S1.2 Select the standard weight components of corresponding quantity and specifications from the weight storage rack according to the calculated counterweight value; check the appearance of the standard weight components to ensure that there is no damage, deformation or quality abnormality, and ensure that they can be used normally; S1.3 Align the limit bottom groove of the standard weight assembly with the clamping ring 1 of the bottom weight assembly, insert it smoothly into the clamping ring, and complete the initial assembly; If multiple standard weight assemblies are needed, the limiting bottom groove of one standard weight assembly is sequentially mounted on the second clamping ring of the adjacent standard weight assembly, and the weight blocks are stacked layer by layer to complete the assembly; S2: Build a stable connection between the lifting mechanism and the counterweight. After the counterweight is prepared, connect the lifting mechanism and the counterweight: S2.1 Operate the rotating arm to move the hanging chain at one end to a suitable position and hang the hanging ring of the assembled bottom weight assembly on the hanging chain; S2.2 rotates the driving frame body, and the driving frame body rotates on the shaft frame through the shaft rod, driving the slide frame to move; The slide frame drives the lifting rod embedded with the limit card to move, so that the placement frame slides on the counterweight adjustment table through the guide rod, and moves the placement assembly to a suitable position directly below the bottom weight assembly; S2.3 Snap the bottom weight assembly onto the placement assembly; Rotate and clamp the limiting ring of the connecting chain assembly on the operating rod of the driving frame assembly, and then clamp the hook of the connecting chain assembly on the positioning ring at the lower end of the outer side of the supporting column to complete the connection and fixation; S3: After completing the above steps, perform the hoisting operation: S3.1 Operate the winch at the other end of the rotating arm according to the position, weight, height and other parameters of the object to be hoisted; Use the winch to adjust the angle of the rotating arm and the length of the hanging chain to determine the best lifting position and height; S3.2 After confirming that all preparations are ready, slowly start the lifting equipment and use the hanging chain to lift the objects to be lifted; During the lifting process, continuously monitor the operating status of the equipment and the condition of the items to ensure that the lifting is safe and smooth until the lifting task is completed.

[0016] The present invention can achieve the following beneficial effects: 1. The combination of the bottom weight assembly and several detachable standard weight assemblies enables flexible adjustment of the counterweight of the lifting equipment. This design allows users to quickly change the total weight of the lifting equipment according to actual needs, thereby adapting to lifting tasks of different weights and sizes, and improving the versatility and practicality of the equipment; 2. The synergistic effect of the drive frame assembly and the connecting chain assembly is utilized to simplify the connection process between the lifting assembly and the counterweight mechanism. The staff only needs to press down the drive frame assembly and fix the connecting chain assembly to easily connect and fix the counterweight and the lifting assembly, which greatly reduces the operation steps and time and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of a counterweight adjustable hoisting assembly device of the present invention; Figure 2 It is a schematic diagram of the exploded structure of a counterweight adjustable hoisting assembly device of the present invention; Figure 3 It is a structural schematic diagram of a hoisting assembly of a hoisting assembly device with adjustable counterweight according to the present invention; Figure 4 This is a structural diagram of the placement assembly, drive frame assembly and connection chain assembly of a counterweight adjustable hoisting assembly device of the present invention. Figure 5 This is a structural diagram of the positioning chain, the limiting ring and the hook connection of a counterweight adjustable hoisting assembly device of the present invention; Figure 6 This is a structural diagram of a driving frame assembly of a counterweight-adjustable hoisting assembly device of the present invention; Figure 7 This is a structural diagram of a placement component of a counterweight adjustable hoisting assembly device of the present invention; Figure 8 The exploded diagram of the counterweight mechanism of the counterweight adjustable lifting assembly device of the present invention.

[0018] In the figure: 1-lifting mechanism; 11-lifting assembly; 111-support column; 112-counterweight adjustment table; 113-axle frame; 114-weight storage rack; 115-positioning ring; 116-rotating arm; 117-hanging chain; 118-winch; 12-placing assembly; 121-placing rack; 122-lifting rod; 123-guide rod; 13-driving frame assembly; 131-driving frame body; 132-axle rod; 1 33-slide rack; 134-operating rod; 14-connecting chain assembly; 141-positioning chain; 142-limiting ring; 143-hook; 2-counterweight mechanism; 21-bottom weight assembly; 211-metal rod; 212-clamping ring 1; 213-basic weight; 214-hanging ring; 22-standard weight assembly; 221-standard weight body; 222-guide groove; 223-limiting bottom groove; 224-clamping ring 2. DETAILED DESCRIPTION

[0019] The preferred solution is Figures 1 to 8 As shown, a counterweight adjustable lifting assembly device and an operating method, It includes a lifting mechanism 1 and a counterweight mechanism 2: The hoisting mechanism 1 includes a hoisting assembly 11, a placing assembly 12 is slidably connected to one side of the hoisting assembly 11, a driving frame assembly 13 is rotatably connected to the hoisting assembly 11, and a connecting chain assembly 14 is also provided on one side of the driving frame assembly 13; The counterweight mechanism 2 includes a bottom weight assembly 21 which is embedded in the placement assembly 12, and a plurality of standard weight assemblies 22 are embedded in the bottom weight assembly 21; When the bottom weight assembly 21 needs to be hung on the hoisting assembly 11, an appropriate amount of standard weight assembly 22 is inserted into the bottom weight assembly 21, and the driving frame assembly 13 is pressed downward to move the placement assembly 12 upward and the bottom weight assembly 21 follows upward; When the bottom weight assembly 21 is located on the upper side, one end of the connecting chain assembly 14 is fixed on the lifting assembly 11, so that the position of the driving frame assembly 13 can be fixed. At this time, the staff can easily connect the bottom weight assembly 21 and the lifting assembly 11. After the connection is completed, the connection between the connecting chain assembly 14 and the lifting assembly 11 is released, so that the placement assembly 12 can drive the driving frame assembly 13 to reset.

[0020] Specifically, the hoisting assembly 11 includes a support column 111, a counterweight adjustment platform 112 is fixedly connected to one side of the bottom of the support column 111, a shaft frame 113 is fixedly installed on the upper side of the counterweight adjustment platform 112, a weight storage rack 114 is also fixedly connected to one side of the counterweight adjustment platform 112, a positioning ring 115 is also fixedly connected to the lower end of the outer side of the support column 111, and a rotating arm 116 is rotatably connected to the upper side of the support column 111 through a bearing, and a hanging chain 117 is installed at one end of the rotating arm 116; The placement component 12 is slidably embedded in the counterweight adjustment platform 112 , the driving frame component 13 is rotatably embedded in the shaft frame 113 , the connecting chain component 14 can be embedded in the positioning ring 115 , and the bottom weight component 21 can be hung on the hanging chain 117 .

[0021] Specifically, a winch 118 is installed on the other end of the rotating arm 116 away from the hanging chain 117 .

[0022] As can be seen from the above, according to the lifting requirements, an appropriate amount of standard weight components 22 are selected from the weight storage rack 114, and they are snapped onto the bottom weight component 21 to form the required total counterweight; Place the assembled bottom weight assembly 21 on the placement assembly 12 to ensure stability; Operate the driving frame assembly 13 to produce a mechanical action by pressing it downward, driving the placement assembly 12 to slide upward along the counterweight adjustment platform 112 until the bottom weight assembly 21 reaches an appropriate height; When the bottom weight assembly 21 is lifted to a suitable position, one end of the bottom weight assembly 21 is clamped on the positioning ring 115 using the connecting chain assembly 14 to ensure that the position of the driving frame assembly 13 is stable; After the drive frame assembly 13 is fixed, the staff can safely connect the bottom weight assembly 21 to the rotating arm 116 through the hanging chain 117. After the connection is completed, the connection between the connecting chain assembly 14 and the positioning ring 115 is removed; After confirming that all connections are correct, start the winch 118 to hoist the goods. Controlling the goods can cause the rotating arm 116 to rotate. When the goods reach the appropriate position, the staff can lower the goods through the winch 118 to complete the transfer.

[0023] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that the placement assembly 12 includes a placement rack 121, a lifting rod 122 is fixedly connected to the outer side of the placement rack 121, and a plurality of guide rods 123 are fixedly connected to the bottom of the placement rack 121; The placement frame 121 is limitedly slidably engaged on the counterweight adjustment platform 112 through the guide rod 123 , and the lifting rod 122 is engaged on the driving frame assembly 13 .

[0024] Specifically, the driving frame assembly 13 includes a driving frame body 131, a shaft 132 is fixedly connected to the middle position of the driving frame body 131, a slide frame 133 is fixedly connected to one end of the driving frame body 131, and an operating rod 134 is fixedly connected to the other end of the driving frame body 131; The driving frame body 131 is rotatably engaged with the shaft frame 113 through the shaft rod 132 , and the lifting rod 122 is limitedly engaged with the slide slot frame 133 . Rotating the driving frame body 131 can enable the slide slot frame 133 to drive the lifting rod 122 to move.

[0025] Specifically, the connecting chain assembly 14 includes a positioning chain 141, one end of the positioning chain 141 is fixedly connected to a limiting ring 142, and the other end of the positioning chain 141 is fixedly connected to a hook 143; The limiting ring 142 is rotatably engaged with the operating rod 134 , and the hook 143 can be engaged with the positioning ring 115 .

[0026] As can be seen from the above, the lifting rod 122 is embedded in the slide frame 133, and the limiting ring 142 at one end of the positioning chain 141 is rotatably embedded in the operating rod 134; Place the assembled bottom weight assembly 21 on the placement rack 121 to ensure stability; The driving frame body 131 is rotated by the operating rod 134. Since the driving frame body 131 is rotatably embedded in the shaft frame 113 through the shaft rod 132, the rotation will drive the slide frame 133 to move. As the slide frame 133 moves, the lifting rod 122 limitedly embedded therein will drive the placement frame 121 and the bottom weight assembly 21 thereon to slide and rise on the counterweight adjustment platform 112 through the guide rod 123. When the bottom weight assembly 21 is lifted to a suitable position, the hook 143 is inserted into the positioning ring 115 to ensure that the position of the driving frame assembly 13 is stable. At this time, the lifting rod 122 is also kept in a fixed position. After the drive frame assembly 13 is fixed, the staff can safely fix the bottom weight assembly 21 to the hanging chain 117 to ensure a firm connection and avoid falling off during the lifting process; After confirming that the bottom weight assembly 21 is correctly connected to the hanging chain 117, the connection between the hook 143 of the connecting chain assembly 14 and the positioning ring 115 is released for subsequent operations; After confirming that all connections are correct, start the winch 118, and through the winch's rope-retracting function and control of the rotation of the rotating arm 116, transfer, lifting or lowering of the cargo to be hoisted is achieved; When the goods arrive at the appropriate location, the staff can remove the goods through the winch 118 to complete the transfer task.

[0027] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that the bottom weight assembly 21 includes a metal rod 211, a clamping ring 212 is fixedly connected to the lower end of the metal rod 211, a basic weight 213 is fixedly connected to the lower end of the clamping ring 212, and a hanging ring 214 is fixedly connected to the upper end of the metal rod 211; A plurality of standard weight assemblies 22 can be clamped on the basic weight 213 through the clamp ring 212 .

[0028] Specifically, the standard weight assembly 22 includes a standard weight body 221, a guide groove 222 is provided on one side of the standard weight body 221, a limited bottom groove 223 is provided at the lower end of the standard weight body 221, and a second clamping ring 224 is fixedly connected to the upper end of the standard weight body 221; The limiting bottom groove 223 can be sleeved on the adjacent second clamping ring 224 , and the limiting bottom groove 223 can be sleeved on the outer side of the first clamping ring 212 .

[0029] As can be seen from the above, according to the lifting requirements, select an appropriate amount of standard weight components 22 and prepare to use them in combination with the bottom weight components 21; Stacking standard weights: The standard weight assembly 22 is mounted on the clamping ring 1 212 of the bottom weight assembly 21 through its limiting bottom groove 223, and then a new standard weight assembly 22 is clamped on the installed clamping ring 1 212 through its limiting bottom groove 223, ensuring that each standard weight assembly is firmly stacked together to form the required total weight; The combination of the limiting bottom groove 223 and the clamping ring 212 can play a limiting role. The guide groove 222 can facilitate the standard weight assembly 22 to be embedded in the metal rod 211, and the hanging ring 214 can facilitate the connection between the bottom weight assembly 21 and the hanging chain 117.

[0030] An operating method of a counterweight adjustable lifting assembly device comprises the following steps: S1: Adjust the counterweight and combine the weight components according to the actual requirements of the lifting task: S1.1 Determine the required counterweight value by calculation based on the weight, volume, shape and lifting environment of the object to be hoisted, combined with the technical parameters of the equipment; strictly follow the equipment safety operating procedures to ensure that the counterweight is adjusted within the rated load range of the equipment; S1.2 Select the standard weight assembly 22 of corresponding quantity and specification from the weight storage rack 114 according to the calculated counterweight value; check the appearance of the standard weight assembly 22 to ensure that there is no damage, deformation or quality abnormality, and ensure that it can be used normally; S1.3 Align the limiting bottom groove 223 of the standard weight assembly 22 with the clamping ring 1 212 of the bottom weight assembly 21, insert them smoothly into the clamping ring, and complete the preliminary assembly; If multiple standard weight assemblies 22 are needed, the limiting bottom groove 223 of one standard weight assembly 22 is sequentially mounted on the second clamping ring 224 of the adjacent standard weight assembly 22, and the weight block assembly is completed by stacking layer by layer; S2: Build a stable connection between the lifting mechanism and the counterweight. After the counterweight is prepared, connect the lifting mechanism and the counterweight: S2.1 Manipulate the rotating arm 116 to move the hanging chain 117 at one end thereof to a suitable position, and hang the hanging ring 214 of the assembled bottom weight assembly 21 on the hanging chain 117; S2.2 The driving frame body 131 is rotated. The driving frame body 131 is rotated on the shaft frame 113 through the shaft rod 132, thereby driving the slide frame 133 to move; The slide frame 133 drives the lifting rod 122 which is locked with the limiter to move, so that the placement frame 121 slides on the counterweight adjustment platform 112 through the guide rod 123, and moves the placement assembly 12 to a suitable position directly below the bottom weight assembly 21; S2.3 The bottom weight assembly 21 is clamped on the placement assembly 12; The limiting ring 142 of the connecting chain assembly 14 is rotated and embedded in the operating rod 134 of the driving frame assembly 13, and then the hook 143 of the connecting chain assembly 14 is embedded in the positioning ring 115 at the lower end of the outer side of the supporting column 111 to complete the connection and fixation; S3: After completing the above steps, perform the hoisting operation: S3.1 operate the winch 118 at the other end of the rotating arm 116 according to the position, weight, height and other parameters of the object to be hoisted; The angle of the rotating arm 116 and the length of the hanging chain 117 are adjusted by the winch 118 to determine the best hoisting position and height; S3.2 After confirming that all preparations are ready, slowly start the lifting equipment and use the hanging chain 117 to lift the objects to be lifted; During the lifting process, continuously monitor the operating status of the equipment and the condition of the items to ensure that the lifting is safe and smooth until the lifting task is completed.

[0031] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A counterweight adjustable hoisting assembly device and an operating method, characterized in that: It includes a lifting mechanism (1) and a counterweight mechanism (2): The hoisting mechanism (1) comprises a hoisting assembly (11), one side of the hoisting assembly (11) is slidably connected to a placement assembly (12), the hoisting assembly (11) is also rotatably connected to a drive frame assembly (13), and one side of the drive frame assembly (13) is provided with a connection chain assembly (14); The counterweight block mechanism (2) comprises a placement component (12) and a bottom weight component (21), wherein the bottom weight component (21) is embedded in the placement component (12), and a plurality of standard weight components (22) are embedded in the bottom weight component (21).

2. According to claim 1, a counterweight adjustable lifting assembly device is characterized in that: The hoisting assembly (11) comprises a support column (111), one side of the bottom of the support column (111) is connected to a counterweight adjustment platform (112), an axle frame (113) is installed on the upper side of the counterweight adjustment platform (112), one side of the counterweight adjustment platform (112) is also connected to a weight storage rack (114), the lower end of the outer side of the support column (111) is also connected to a positioning ring (115), the upper side of the support column (111) is also rotatably connected to a rotating arm (116) via a bearing, and one end of the rotating arm (116) is installed with a hanging chain (117).

3. According to claim 2, a counterweight adjustable lifting assembly device is characterized in that: The placement component (12) is slidably embedded in the counterweight adjustment platform (112), the drive frame component (13) is rotatably embedded in the shaft frame (113), the connection chain component (14) can be embedded in the positioning ring (115), and the bottom weight component (21) can be hung on the hanging chain (117).

4. The adjustable counterweight hoisting assembly device according to claim 2, characterized in that: A winch (118) is also installed on the other end of the rotating arm (116) away from the hanging chain (117).

5. A counterweight adjustable hoisting assembly device according to claim 3 or 4, characterized in that: The placement assembly (12) comprises a placement rack (121), the outer side of the placement rack (121) is connected to a lifting rod (122), and the bottom of the placement rack (121) is connected to a plurality of guide rods (123); The placement frame (121) is limitedly slidably engaged on the counterweight adjustment platform (112) via a guide rod (123), and the lifting rod (122) is engaged on the driving frame assembly (13).

6. The adjustable counterweight hoisting assembly device according to claim 5, characterized in that: The driving frame assembly (13) comprises a driving frame body (131), a shaft (132) is connected to the middle position of the driving frame body (131), one end of the driving frame body (131) is connected to a slide frame (133), and the other end of the driving frame body (131) is connected to an operating rod (134); The driving frame body (131) is rotatably engaged with the shaft frame (113) via the shaft rod (132), and the lifting rod (122) is limitedly engaged with the slide slot frame (133). Rotating the driving frame body (131) allows the slide slot frame (133) to drive the lifting rod (122) to move.

7. The counterweight adjustable hoisting assembly device according to claim 6, characterized in that: The connecting chain assembly (14) comprises a positioning chain (141), one end of the positioning chain (141) is connected to a limiting ring (142), and the other end of the positioning chain (141) is connected to a hook (143); The limiting ring (142) is rotatably engaged with the operating rod (134), and the hook (143) can be engaged with the positioning ring (115).

8. The counterweight adjustable hoisting assembly device according to claim 7, characterized in that: The bottom weight assembly (21) comprises a metal rod (211), the lower end of the metal rod (211) is connected to a clamping ring (212), the lower end of the clamping ring (212) is connected to a basic weight (213), and the upper end of the metal rod (211) is connected to a hanging ring (214); A plurality of the standard weight assemblies (22) can be limitedly clamped and embedded on the basic weight (213) through a clamping ring (212).

9. The counterweight adjustable hoisting assembly device according to claim 8, characterized in that: The standard weight assembly (22) comprises a standard weight body (221), a guide groove (222) is provided on one side of the standard weight body (221), a limiting bottom groove (223) is provided at the lower end of the standard weight body (221), and a second clamping ring (224) is connected to the upper end of the standard weight body (221); The limiting bottom groove (223) can be sleeved on the adjacent second clamping ring (224), and the limiting bottom groove (223) can be sleeved on the outside of the first clamping ring (212).

10. The method for operating the counterweight adjustable hoisting assembly according to any one of claims 1 to 9, characterized in that The following steps are involved: S1: Adjust the counterweight and combine the weight components according to the actual requirements of the lifting task: S1.1 Determine the required counterweight value by calculation based on the weight, volume, shape and lifting environment of the object to be hoisted, combined with the technical parameters of the equipment; strictly follow the equipment safety operating procedures to ensure that the counterweight is adjusted within the rated load range of the equipment; S1.2 Select standard weight assemblies (22) of corresponding quantity and specification from the weight storage rack (114) according to the calculated counterweight value; check the appearance of the standard weight assemblies (22) to ensure that there is no damage, deformation or quality abnormality, and ensure that they can be used normally; S1.3 Align the limiting bottom groove (223) of the standard weight assembly (22) with the clamping ring 1 (212) of the bottom weight assembly (21), insert them smoothly into the clamping ring, and complete the preliminary assembly; If multiple standard weight assemblies (22) are required, the limiting bottom groove (223) of one standard weight assembly (22) is sequentially sleeved on the second clamping ring (224) of the adjacent standard weight assembly (22), and the weight blocks are stacked layer by layer to complete the assembly; S2: Build a stable connection between the lifting mechanism and the counterweight. After the counterweight is prepared, connect the lifting mechanism and the counterweight: S2.1 operate the rotating arm (116) to move the hanging chain (117) at one end thereof to a suitable position, and hang the hanging ring (214) of the assembled bottom weight assembly (21) on the hanging chain (117); S2.2 rotating the driving frame body (131), the driving frame body (131) rotates on the shaft frame (113) through the shaft rod (132), driving the slide frame (133) to move; The slide frame (133) drives the lifting rod (122) which is locked with the limit clamp to move, so that the placement frame (121) slides on the counterweight adjustment platform (112) through the guide rod (123), and the placement component (12) is moved to a suitable position directly below the bottom weight component (21); S2.3 snap the bottom weight assembly (21) onto the placement assembly (12); The limiting ring (142) of the connecting chain assembly (14) is rotated and embedded in the operating rod (134) of the driving frame assembly (13), and then the hook (143) of the connecting chain assembly (14) is embedded in the positioning ring (115) at the lower end of the outer side of the supporting column (111) to complete the connection and fixation; S3: After completing the above steps, perform the hoisting operation: S3.1 operate the winch (118) at the other end of the rotating arm (116) according to the position, weight, height and other parameters of the object to be hoisted; The angle of the rotating arm (116) and the length of the hanging chain (117) are adjusted by the winch (118) to determine the optimal hoisting position and height; S3.2 After confirming that all preparations are complete, slowly start the lifting equipment and use the hanging chain (117) to lift the object to be lifted; During the lifting process, continuously monitor the operating status of the equipment and the condition of the items to ensure that the lifting is safe and smooth until the lifting task is completed.

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