Novel swing arm structure capable of rotating manually

Abstract

The utility model belongs to the technical field of swing arm structures, and particularly relates to a novel swing arm structure capable of rotating manually, which comprises a rotating seat, a swing arm main body, a connecting component, an adjusting device and a reinforcing component, an annular rotary rail is arranged on the upper surface of the rotary seat, a plurality of ball grooves are uniformly distributed in the rotary rail, and a ball rolls in each ball groove; the main view cross section of the swing arm body is in an inverted T shape, the upper portion of the swing arm body is in a hollow cylinder shape with an open top wall, an annular connecting sliding block is arranged at the bottom of the swing arm body, and the ball is in sliding fit with the connecting sliding block at the bottom of the swing arm body. According to the swing arm structure, the problems of unstable connection, inflexible length and angle adjustment, insufficient structural strength and the like of the swing arm structure of the traditional manual rotary crane are well solved, and the swing arm structure has higher practicability and safety and can better meet the requirements of various small hoisting operations.

Description

Technical Field

[0001] The utility model relates to the technical field of swing arm structures, and particularly to a novel swing arm structure with manual rotation. Background Art

[0002] In some existing small-scale hoisting operation scenarios, manual rotary cranes are often used. However, the swing arm structures of traditional manual rotary cranes have many deficiencies. On the one hand, the connection stability of the swing arm is poor, and it is prone to shaking when hoisting heavy objects, affecting the accuracy and safety of hoisting. For example, the connection method between the swing arm and the rotary base is simple and cannot effectively withstand large lateral forces, resulting in the swing arm being displaced during operation, causing the hoisted goods to deviate from the predetermined position, and even possibly causing dangerous situations such as the goods falling; on the other hand, the adjustment of the length and angle of the swing arm is not flexible enough to meet the requirements of different hoisting operations; the swing arm lengths of some manual rotary cranes are fixed and cannot be adjusted according to the actual hoisting distance, restricting their scope of use; in addition, the structural strength of the swing arm itself is insufficient, and it is prone to deformation and damage during long-term use or when hoisting heavier goods, increasing the equipment maintenance cost and downtime, and affecting the normal progress of production operations. Therefore, a novel swing arm structure with manual rotation needs to be developed. Summary of the Utility Model

[0003] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the application for the utility model, to avoid obscuring the purpose of this part, the abstract, and the title of the application for the utility model. However, such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided:

[0005] A novel swing arm structure with manual rotation, which includes a rotary base, a swing arm main body, a connection component, an adjustment device, and a strengthening component;

[0006] An annular rotary track is provided on the upper surface of the rotary base, and a plurality of ball grooves are evenly distributed on the rotary track, and balls are rolled in each ball groove;

[0007] The main cross-section of the swing arm main body is in the shape of "丄", and the upper part is a hollow cylindrical shape with an open top wall. An annular connection slider is provided at the bottom of the swing arm main body, and the balls are slidably engaged with the connection slider at the bottom of the swing arm main body;

[0008] The connecting assembly includes connecting ears fixed on both sides of the swing arm body and fastening bolts that pass through the connecting ears and connect to the corresponding connecting holes on the rotary seat. An elastic buffer pad is fitted on the fastening bolt, and the elastic buffer pad is located between the connecting ear and the rotary seat.

[0009] The adjustment device includes a telescopic inner rod disposed inside the swing arm body and an adjustment nut rotatably mounted at the end of the swing arm body via a bearing sleeve. The telescopic inner rod is provided with an external thread, and the adjustment nut is screwed into the external thread.

[0010] The reinforcing component includes reinforcing ribs fixed to the upper surface of the swing arm body and a reinforcing frame disposed inside the swing arm body. The reinforcing frame is welded together from multiple transverse and longitudinal metal rods.

[0011] As a preferred embodiment of the novel manually rotating swing arm structure described in this utility model, a protective baffle is provided on the outer side of the rotation track of the rotating seat, and the height of the protective baffle is higher than the diameter of the ball bearing.

[0012] As a preferred embodiment of the novel manually rotating swing arm structure described in this utility model, a reinforcing triangular plate is provided between the connecting ear and the side wall of the swing arm body. The two right-angled sides of the reinforcing triangular plate are welded and fixed to the connecting ear and the swing arm body respectively. The reinforcing triangular plate is used to enhance the connection strength between the connecting ear and the swing arm body.

[0013] As a preferred embodiment of the novel manually rotating swing arm structure described in this utility model, the upper end of the telescopic inner rod is located above the main body of the swing arm, and a rubber buffer head is provided at the upper end of the telescopic inner rod. The rubber buffer head is used to prevent the telescopic inner rod from rigidly colliding with the cargo during hoisting, thereby protecting the cargo and the telescopic inner rod.

[0014] As a preferred embodiment of the novel manually rotating swing arm structure described in this utility model, the reinforcing ribs are evenly distributed on the upper surface of the swing arm body, and the cross-section of the reinforcing ribs is a right-angled isosceles triangle. The reinforcing ribs are used to enhance the bending resistance of the swing arm body.

[0015] As a preferred embodiment of the novel manually rotating swing arm structure described in this utility model, the outer surface of the adjusting nut is provided with anti-slip texture.

[0016] The beneficial effects of this utility model are: it effectively solves the problems of unstable connection, inflexible length and angle adjustment, and insufficient structural strength of the traditional manual slewing crane boom structure, and has high practicality and safety, and can better meet the needs of various small lifting operations. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the rotary seat of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the main body and other components of the swing arm of this utility model;

[0021] Figure 4 This utility model Figure 3 A structural diagram viewed from below;

[0022] Figure 5 This is a schematic diagram of the reinforcing frame of this utility model. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0027] Please see Figures 1-5 The diagram shown is a structural schematic of an embodiment of a novel manually rotating swing arm structure according to this utility model. Please refer to [link / reference]. Figures 1-5 This paper provides a detailed introduction to a novel manually rotating swing arm structure.

[0028] A novel manually rotatable swing arm structure includes a rotatable base 100, a swing arm body 200, a connecting assembly 300, an adjusting device 400, and a reinforcing component 500.

[0029] The upper surface of the rotary seat 100 is provided with an annular rotary track 101, and a plurality of ball grooves 102 are evenly distributed on the rotary track 101, and a ball 103 rolls in each ball groove 102.

[0030] The main cross-section of the swing arm body 200 is "T" shaped, and the upper part is a hollow cylinder with an open top wall. The bottom of the swing arm body 200 is provided with an annular connecting slider 201, and the ball 103 slides in cooperation with the connecting slider 201 at the bottom of the swing arm body 200.

[0031] The connecting assembly 300 includes connecting ears 301 fixed on both sides of the swing arm body 200 and fastening bolts 302 passing through the connecting ears 301 and connecting to the corresponding connecting holes 104 on the rotary seat 100. An elastic buffer pad 303 is sleeved on the fastening bolt 302, and the elastic buffer pad 303 is located between the connecting ears 301 and the rotary seat 100.

[0032] The adjustment device 400 includes a telescopic inner rod 401 disposed inside the swing arm body 200 and an adjustment nut 402 rotatably rotated at the end of the swing arm body 200 via a bearing sleeve. The telescopic inner rod 401 is provided with an external thread 403, and the adjustment nut 402 is screwed into the external thread 403.

[0033] The reinforcing component 500 includes a reinforcing rib 501 fixed to the upper surface of the swing arm body 200 and a reinforcing frame 502 disposed inside the swing arm body 200. The reinforcing frame 502 is welded together from multiple transverse and longitudinal metal rods.

[0034] It includes a rotary seat 100, a swing arm body 200, a connecting assembly 300, an adjusting device 400, and a reinforcing component 500;

[0035] The upper surface of the rotary seat 100 is provided with an annular rotary track 101, and a plurality of ball grooves 102 are evenly distributed on the rotary track 101, and a ball 103 rolls in each ball groove 102.

[0036] The main cross-section of the swing arm body 200 is "T" shaped, and the upper part is a hollow cylinder with an open top wall. The bottom of the swing arm body 200 is provided with an annular connecting slider 201, and the ball bearing 103 slides in cooperation with the connecting slider 201 at the bottom of the swing arm body 200. A protective baffle 105 is provided on the outside of the rotary track 101 of the rotary seat 100. The height of the protective baffle 105 is higher than the diameter of the ball bearing 103. The protective baffle 105 is used to prevent the ball bearing 103 from leaving the rotary track 101 during rotation.

[0037] The connecting assembly 300 includes connecting ears 301 fixed on both sides of the swing arm body 200 and fastening bolts 302 passing through the connecting ears 301 and connecting to corresponding connecting holes 104 on the rotary seat 100. An elastic buffer pad 303 is sleeved on the fastening bolt 302 and is located between the connecting ears 301 and the rotary seat 100. A reinforcing triangular plate 304 is provided between the connecting ears 301 and the side wall of the swing arm body 200. The two right-angled sides of the reinforcing triangular plate 304 are welded and fixed to the connecting ears 301 and the swing arm body 200, respectively. The reinforcing triangular plate 304 is used to enhance the connection strength between the connecting ears 301 and the swing arm body 200.

[0038] The adjusting device 400 includes a telescopic inner rod 401 disposed inside the swing arm body 200 and an adjusting nut 402 rotatably mounted at the end of the swing arm body 200 via a bearing sleeve. The telescopic inner rod 401 is provided with an external thread 403, and the adjusting nut 402 is screwed into the external thread 403. The outer surface of the adjusting nut 402 is provided with anti-slip texture 405. The upper end of the telescopic inner rod 401 is located above the swing arm body 200, and a rubber buffer head 404 is provided at the upper end of the telescopic inner rod 401. The rubber buffer head 404 is used to prevent the telescopic inner rod 401 from rigidly colliding with the cargo during hoisting, thus protecting the cargo and the telescopic inner rod 401.

[0039] The reinforcing component 500 includes reinforcing ribs 501 fixed to the upper surface of the swing arm body 200 and a reinforcing frame 502 disposed inside the swing arm body 200. The reinforcing frame 502 is welded together from multiple transverse and longitudinal metal rods. The reinforcing ribs 501 are evenly distributed on the upper surface of the swing arm body 200, and the cross-section of the reinforcing ribs 501 is a right-angled isosceles triangle. The reinforcing ribs 501 are used to enhance the bending resistance of the swing arm body 200.

[0040] In practical applications, the slewing base 100 is first firmly connected to the crane body, which can be fixed by welding or other means to ensure its levelness and stability. The swing arm body 200 is connected to the slewing track 101 on the slewing base 100 through the connecting slider 201 at the bottom. The ball bearings 103 roll in the ball bearing groove 102, so that the swing arm body 200 can easily rotate relative to the slewing base 100 to meet the adjustment requirements of the swing arm angle during hoisting.

[0041] When it is necessary to fix the slewing seat 100 and the swing arm body 200, the swing arm body 200 and the slewing seat 100 are tightly connected by the fastening bolts 302 and the elastic buffer pads 303 in the connecting assembly 300. The elastic buffer pads 303 effectively buffer the impact force during the hoisting process, prevent the connection from loosening, enhance the stability of the connection, reduce the swing arm sway, and ensure hoisting accuracy and safety.

[0042] The protective baffle 105 on the outer side of the rotary track 101 of the rotary seat 100 is higher than the diameter of the ball 103. When the swing arm rotates, the protective baffle 105 can reliably block the ball 103, prevent it from falling off the rotary track 101, ensure the stable and reliable rotation of the swing arm, and avoid equipment failure and safety accidents caused by the ball falling off.

[0043] The reinforcing triangular plate 304 between the connecting ear 301 and the bottom of the swing arm body 200 effectively disperses the stress at the connecting ear 301 through its stable triangular structure, greatly enhancing the connection strength between the connecting ear 301 and the swing arm body 200. This ensures that the connection remains stable when the swing arm is subjected to a large lifting force, reducing the risk of deformation and breakage of the connecting ear and further improving the overall reliability and safety of the swing arm.

[0044] When the swing arm length needs to be adjusted, the operator holds the adjusting nut 402, whose anti-slip texture 405 on its outer surface increases hand friction and facilitates operation; by rotating the adjusting nut 402, the telescopic inner rod 401 extends or retracts within the swing arm body 200 to adapt to different lifting distances; the rubber buffer head 404 at the end of the telescopic inner rod 401 can effectively buffer collisions with goods during lifting, protecting the goods and the telescopic inner rod 401 from damage;

[0045] The reinforcing ribs 501 on the upper surface of the swing arm body 200 are evenly distributed and have a right-angled isosceles triangle cross section. When hoisting heavy objects, the reinforcing ribs 501 can significantly enhance the bending resistance of the swing arm body 200, enabling the swing arm to better resist bending deformation, ensuring the stability and accuracy of hoisting, and meeting the needs of complex hoisting conditions.

[0046] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in the present invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A novel manually rotating swing arm structure, characterized in that, It includes a slewing base (100), a swing arm main body (200), a connection component (300), an adjustment device (400) and a strengthening component (500); An annular slewing track (101) is provided on the upper surface of the slewing base (100), and a plurality of ball grooves (102) are evenly distributed on the slewing track (101), and a ball (103) rolls in each ball groove (102); The main view cross-section of the swing arm main body (200) is in the shape of "丄", and the upper part is a hollow cylindrical shape with an open top wall. An annular connection slider (201) is provided at the bottom of the swing arm main body (200), and the ball (103) is slidably mated with the connection slider (201) at the bottom of the swing arm main body (200); The connection component (300) includes connection ears (301) fixed on both sides of the swing arm main body (200) and fastening bolts (302) passing through the connection ears (301) and connected to corresponding connection holes (104) on the slewing base (100). An elastic buffer pad (303) is sleeved on the fastening bolt (302), and the elastic buffer pad (303) is located between the connection ear (301) and the slewing base (100); The adjustment device (400) includes a telescopic inner rod (401) provided inside the swing arm main body (200) and an adjustment nut (402) rotatably mounted at the end of the swing arm main body (200) through a bearing sleeve. External threads (403) are provided on the telescopic inner rod (401), and the adjustment nut (402) is screwed with the external threads (403); The strengthening component (500) includes strengthening ribs (501) fixed on the upper surface of the swing arm main body (200) and a strengthening frame (502) provided inside the swing arm main body (200). The strengthening frame (502) is welded by a plurality of horizontal and vertical metal rods; 2. The novel manually rotating swing arm structure according to claim 1, characterized in that: A protective baffle (105) is provided outside the slewing track (101) of the slewing base (100), and the height of the protective baffle (105) is higher than the diameter of the ball (103); 3. The novel manually rotating swing arm structure according to claim 1, characterized in that: ​ 4. The novel manually rotating swing arm structure according to claim 1, characterized in that: ​ 5. A novel manually rotating swing arm structure according to claim 1, characterized in that: ​ 6. The novel manually rotating swing arm structure according to claim 1, characterized in that: ​

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