Counterweight-adjustable lifting hook suitable for floor rocker arm derrick

Abstract

The utility model discloses a counterweight-adjustable lifting hook suitable for a floor rocker arm derrick, and relates to the technical field of power transmission line engineering iron tower construction, in particular to a counterweight-adjustable lifting hook suitable for the floor rocker arm derrick, which comprises a lifting appliance mechanism and is used for bearing a lifted object. Comprising limiting frames mounted at the front end and the rear end of the top of a bottom plate, four mounting grooves formed in the upper ends of the interiors of the limiting frames, four limiting grooves formed in the lower ends of the interiors of the limiting frames, a top plate mounted between the tops of the limiting frames at the front end and the rear end, and a plurality of balancing weights mounted in the limiting frames. Clamping grooves formed in the front end and the rear end of the outer wall of the balancing weight are matched with the limiting grooves; the balancing weights are inserted into the mounting grooves in the limiting frames at the front end and the rear end, then the balancing weights are loosened to fall into the limiting grooves, and meanwhile, the clamping grooves are clamped in the limiting grooves, so that the balancing weights are prevented from shaking after being installed.

Description

Technical Field

[0001] The utility model relates to the technical field of iron tower construction for power transmission line projects, in particular to a counterweight-adjustable hook suitable for a ground-mounted rocker arm holding rod. Background Art

[0002] The traditional rocker arm hook has a fixed weight. When hoisting the iron tower, the weight of the hook can meet the demand. As the tower structure height of the transmission line becomes higher and higher, when the hoisting height exceeds a certain height, the moment of the pulley block on the support is less than the moment of the luffing rope on the support, which will cause instability in the process of the rocker arm retracting. At this time, the rocker arm will automatically close, which will bring danger to the construction workers. Therefore, during the construction process, it is often necessary to hang heavy objects under the hook for balance, but the heavy objects are often not standardized, the specific weight is not clear, and there is uncertainty, which affects the normal construction;

[0003] After checking the publication number: CN219636721U, a weight-adjustable hook suitable for a floor-standing rocker arm is disclosed. This technology discloses "a weight-adjustable hook suitable for a floor-standing rocker arm. It includes a hook body, the hook body includes a moving pulley, and the side walls at both ends of the moving pulley are provided with a weight assembly for adjusting the weight of the moving pulley, and the moving pulley is provided with a hook hinged to the moving pulley" and other technical effects, which have the function of adjusting the weight of the hook itself, thereby protecting the safety of construction personnel and improving the work efficiency of construction personnel.

[0004] The above scheme is to increase the weight of the hook by placing multiple counterweight plates. However, each time a counterweight plate is added, one needs to be placed in the front and back to achieve balance and stability. Due to the lack of front and back limit of the counterweight plate, multiple counterweight plates are prone to shaking after being placed, which may not only affect the stability of the hook, but also pose a threat to operational safety. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a counterweight adjustable hook suitable for a floor-standing rocker arm bracket, which has the characteristics of inserting the counterweight block into the installation grooves on the limit frames at the front and rear ends, and then loosening the counterweight block to make it fall into the limit groove. At the same time, the clamping slot is clamped on the limit groove to prevent the counterweight block from shaking after being installed.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a weight-adjustable hook suitable for a ground-mounted rocker arm, including a sling mechanism and used to carry the object to be lifted, the sling mechanism includes:

[0007] The counterweight assembly includes limit frames installed at the front and rear ends of the top of the bottom plate, four installation slots opened at the upper ends inside the limit frames, four limit slots opened at the lower ends inside the limit frames, and the limit slots are communicated with the installation slots. A top plate is installed between the tops of the front and rear limit frames. A number of counterweight blocks are installed inside the limit frames. Card slots are opened at both the front and rear ends of the outer walls of the counterweight blocks and are matched with the limit slots.

[0008] The execution assembly is arranged on the counterweight assembly and is used for hanging objects.

[0009] Preferably, the counterweight assembly further includes threaded rods installed at both ends of the limit frames, and first nuts are threadedly installed at both the upper and lower ends of the threaded rods.

[0010] Preferably, the counterweight assembly further includes kidney-shaped holes opened at both ends of the limit frames, and second nuts are threadedly installed at both the upper and lower ends of the threaded rods.

[0011] Preferably, the execution assembly further includes an axle frame installed at the bottom of the bottom plate, a mounting seat rotatably installed at the lower end of the axle frame, a mounting hole opened in the middle of the mounting seat, a mounting head inserted and installed inside the mounting hole, and a hook fixed at the lower end of the mounting head.

[0012] Preferably, the execution assembly further includes lock grooves opened at both ends of the mounting head, lock heads slidably installed horizontally on both sides inside the mounting seat, a first spring sleeved on the lock heads, a convex head fixed at the inner end of the lock head, pin rods slidably installed vertically on both sides inside the mounting seat, grooves opened on the pin rods, and a second spring sleeved on the pin rods.

[0013] Preferably, the execution assembly further includes positioning heads fixed on both sides of the top of the hook, and positioning holes opened on both sides of the bottom of the mounting seat. Beneficial effects

[0014] The utility model provides a counterweight adjustable hook applicable to a floor swing jib pole. Compared with the prior art, it has the following beneficial effects:

[0015] (1) By inserting the counterweight blocks into the installation slots on the front and rear limit frames and then loosening the counterweight blocks to make them fall into the limit slots, at the same time, the card slots are stuck on the limit slots to prevent the counterweight blocks from shaking after being installed. And each time a counterweight block is added, the counterweight blocks are added on both sides in the middle or on both sides left and right at the same time to keep it balanced and stable.

[0016] (2) The distance between the front and rear limit frames after being fixed can be adjusted through the kidney-shaped holes, so as to install counterweight blocks of different lengths and weights. The counterweight assembly can be disassembled and assembled as a whole, and is divided into a modular design, which is convenient for replacing each component. This flexibility enables it to adapt to different construction environments and hoisting requirements, and improves its application range and practicability. Description of the drawings

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the counterweight assembly in the present utility model;

[0019] Figure 3 is a structural schematic diagram of the limit frame in the present utility model;

[0020] Figure 4 is an exploded view of the execution assembly in the present utility model;

[0021] Figure 5 is a structural schematic diagram of the interior of the mounting seat in the present utility model.

[0022] In the figure: 1. Hoisting mechanism; 11. Counterweight assembly; 111. Bottom plate; 112. Limit frame; 113. Installation groove; 114. Limit groove; 115. Waist-shaped hole; 116. Top plate; 117. Counterweight block; 118. Card slot; 119. Threaded rod; 1110. First nut; 1111. Second nut; 12. Execution assembly; 121. Shaft frame; 122. Mounting seat; 123. Mounting hole; 124. Mounting head; 125. Hook; 126. Lock groove; 127. Lock head; 128. First spring; 129. Convex head; 1210. Pin rod; 1211. Groove; 1212. Second spring; 1213. Positioning head; 1214. Positioning hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , the present utility model provides a technical solution for a counterweight adjustable hook applicable to a floor swing jib derrick: a counterweight adjustable hook applicable to a floor swing jib derrick, including a hoisting mechanism 1 and used for carrying the object to be lifted, and the hoisting mechanism 1 includes:

[0025] The counterweight assembly 11 includes limit frames 112 installed at the front and rear ends of the top of the bottom plate 111, four installation slots 113 opened at the upper ends inside the limit frames 112, four limit slots 114 opened at the lower ends inside the limit frames 112, and the limit slots 114 communicate with the installation slots 113. A top plate 116 is installed between the tops of the limit frames 112 at the front and rear ends. A number of counterweight blocks 117 are installed inside the limit frames 112. Card slots 118 are opened at both the front and rear ends of the outer wall of the counterweight blocks 117 and are matched with the limit slots 114.

[0026] The execution assembly 12 is arranged on the counterweight assembly 11 and is used for hanging objects.

[0027] In this implementation scheme, by inserting the counterweight blocks 117 into the installation slots 113 on the limit frames 112 at the front and rear ends, and then loosening the counterweight blocks 117 to make them fall into the limit slots 114. At the same time, the card slots 118 are stuck on the limit slots 114 to prevent the counterweight blocks 117 from shaking after being installed. And every time a counterweight block 117 is added, the counterweight blocks 117 are added on both sides in the middle or on both the left and right sides at the same time to keep it balanced and stable.

[0028] Specifically, the counterweight assembly 11 further includes threaded rods 119 installed at both ends of the limit frames 112, and first nuts 1110 are threadedly installed at both the upper and lower ends of the threaded rods 119.

[0029] In this embodiment, the entire counterweight assembly 11 can be disassembled and assembled, and is divided into a modular design, which is convenient for replacing each component. This flexibility enables it to adapt to different construction environments and lifting requirements, and improves its application range and practicability.

[0030] Specifically, the counterweight assembly 11 further includes waist-shaped holes 115 opened at both ends of the limit frames 112, and second nuts 1111 are threadedly installed at both the upper and lower ends of the threaded rods 119.

[0031] In this embodiment, the distance between the limit frames 112 at the front and rear ends can be adjusted through the waist-shaped holes 115, so as to install counterweight blocks 117 with different lengths and weights.

[0032] Specifically, the execution component 12 further includes a shaft bracket 121 installed at the bottom of the bottom plate 111, a mounting seat 122 rotatably installed at the lower end of the shaft bracket 121, a mounting hole 123 opened in the middle of the interior of the mounting seat 122, a mounting head 124 inserted and installed in the mounting hole 123, a hook 125 fixed to the lower end of the mounting head 124, locking grooves 126 opened at both ends of the mounting head 124, locking heads 127 horizontally slidably installed on both sides inside the mounting seat 122, a first spring 128 sleeved and installed on the locking heads 127, a convex head 129 fixed to the inner end of the locking head 127, a pin rod 1210 longitudinally slidably installed on both sides inside the mounting seat 122, a groove 1211 opened in the pin rod 1210, and a second spring 1212 sleeved and installed on the pin rod 1210.

[0033] In this embodiment, when installing the hook 125, the groove 1211 is driven to move to the convex head 129 by pressing the pin rod 1210, and the convex head 129 is pushed into the groove 1211 by the resilient pressure of the first spring 128. At the same time, the convex head 129 drives the locking head 127 to disengage from the mounting hole 123, so that the mounting head 124 on the hook 125 can be completely inserted into the mounting hole 123. Then, the pressed pin rod 1210 is released, and the groove 1211 on the pin rod 1210 is driven to disengage from the convex head 129 by the resilient pressure of the second spring 1212, so that the outer wall of the pin rod 1210 presses the convex head 129 to drive the locking head 127 to insert into the locking groove 126, thereby fixing the hook 125 on the mounting seat 122; this makes the disassembly and assembly of the hook 125 convenient and fast when it needs to be replaced, and it is firmly fixed after installation.

[0034] Specifically, the execution component 12 further includes positioning heads 1213 fixed to both sides of the top of the hook 125, and positioning holes 1214 opened on both sides of the bottom of the mounting seat 122.

[0035] In this embodiment, when the mounting head 124 on the hook 125 is inserted into the mounting hole 123 on the mounting seat 122, the positioning head 1213 is inserted into the positioning hole 1214 for positioning, so that the locking groove 126 can be aligned with the locking head 127.

[0036] Working principle and usage process of the present utility model: First, when installing the hook 125, by pressing the pin rod 1210, the groove 1211 is driven to move to the convex head 129, and the convex head 129 is pushed into the groove 1211 by the elastic force of the first spring 128. At the same time, the locking head 127 is driven by the convex head 129 to disengage from the mounting hole 123, so that the mounting head 124 on the hook 125 can be fully inserted into the mounting hole 123. Then, release the pressed pin rod 1210, and the groove 1211 on the pin rod 1210 is driven to disengage from the convex head 129 by the elastic force of the second spring 1212, so that the outer wall of the pin rod 1210 presses the convex head 129 to drive the locking head 127 to insert into the locking groove 126, thereby fixing the hook 125 on the mounting seat 122; this makes the disassembly and assembly of the hook 125 convenient and fast during replacement, and it is firmly fixed after installation.

[0037] Then, by inserting the counterweight 117 into the mounting slots 113 on the front and rear limiting frames 112, and then releasing the counterweight 117 to make it fall into the limiting slot 114. At the same time, the card slot 118 is stuck on the limiting slot 114 to prevent the counterweight 117 from shaking after being installed; moreover, each time the counterweight 117 is added, the counterweight 117 is added on both sides in the middle or on both sides on the left and right at the same time to keep it balanced and stable.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A weight-adjustable hook suitable for a floor-standing rocker arm, characterized in that: The invention comprises a sling mechanism (1) and is used for carrying a lifted object, wherein the sling mechanism (1) comprises: The counterweight assembly (11) comprises a limit frame (112) installed at the front and rear ends of the top of the bottom plate (111), four installation slots (113) opened at the upper end of the limit frame (112), four limit slots (114) opened at the lower end of the limit frame (112), and the limit slots (114) are connected to the installation slots (113), a top plate (116) installed between the tops of the limit frames (112) at the front and rear ends, a plurality of counterweight blocks (117) installed inside the limit frame (112), and slots (118) opened at both the front and rear ends of the outer wall of the counterweight blocks (117) and matched with the limit slots (114); The actuator component (12) is arranged on the counterweight component (11) and is used to hang an object.

2. The weight-adjustable hook suitable for a floor-standing rocker arm according to claim 1, characterized in that: The counterweight assembly (11) further comprises a threaded rod (119) mounted on both ends of the limiting frame (112), and a first nut (1110) threadedly mounted on both upper and lower ends of the threaded rod (119).

3. The weight-adjustable hook suitable for a floor-standing rocker arm according to claim 2, characterized in that: The counterweight assembly (11) further comprises waist-shaped holes (115) formed at both ends of the limiting frame (112), and second nuts (1111) threadedly mounted at both upper and lower ends of the threaded rod (119).

4. The weight-adjustable hook suitable for a floor-standing rocker arm according to claim 1, characterized in that: The actuator assembly (12) further comprises an axle frame (121) mounted at the bottom of the base plate (111), a mounting seat (122) rotatably mounted at the lower end of the axle frame (121), a mounting hole (123) opened in the middle of the mounting seat (122), a mounting head (124) inserted into the mounting hole (123), and a hook (125) fixed at the lower end of the mounting head (124).

5. The weight-adjustable hook suitable for a floor-standing rocker arm according to claim 4, characterized in that: The actuator assembly (12) further comprises lock grooves (126) formed at both ends of the mounting head (124), a lock head (127) mounted for transverse sliding inside the mounting seat (122), a first spring (128) sleeved on the lock head (127), a convex head (129) fixed at the inner end of the lock head (127), a pin rod (1210) mounted for longitudinal sliding inside the mounting seat (122), a groove (1211) formed on the pin rod (1210), and a second spring (1212) sleeved on the pin rod (1210).

6. The weight-adjustable hook suitable for a floor-standing rocker arm according to claim 4, characterized in that: The actuator assembly (12) further comprises positioning heads (1213) fixed on both sides of the top of the hook (125), and positioning holes (1214) formed on both sides of the bottom of the mounting seat (122).

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