Adjusting device

Abstract

The utility model provides an adjusting device. The device comprises a main body structure, a support and a telescopic cylinder. The main body structure comprises a first supporting leg assembly and a second supporting leg assembly. The first supporting leg assembly and the second supporting leg assembly are hinged through a rotating shaft. The first supporting leg assembly is provided with a mounting hole and a supporting column contained in the mounting hole. And the support is rotatably connected to the main body structure through a rotating shaft. The support is provided with a limiting part, and the supporting column is rotatably contained in the limiting part. The telescopic end of the telescopic cylinder is connected with the end, away from the rotating shaft, of the support. The telescopic cylinder can drive the support to rotate around the rotating shaft, and the support drives the first supporting leg assembly and the second supporting leg assembly to rotate relatively through the supporting column. And through the structural arrangement of the supporting columns and the supports, the adjusting device is firm in structure, and the problems of weld joint cracking and the like are not prone to occurring. The sleeve and the reinforcing plate are arranged on the support, so that the structural strength of the support is enhanced, the output efficiency of the telescopic cylinder is effectively improved, and noise is avoided.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to an adjusting device. Background Art

[0002] In the field of mechanics, many engineering devices, such as lifting devices, usually include an adjusting device for controlling their movement. The adjusting device includes a main structure and a driving structure that can drive the main structure to move relative to each other, such as a telescopic cylinder. The support is an important device for installing and fixing the telescopic cylinder. At present, the support is often hinged to the main structure, and the telescopic cylinder is hinged to the support. Welding parts are often welded on the main structure. When the telescopic cylinder makes an extension movement, the welding parts will abut against the support, and then push the main structure to move. When the telescopic cylinder makes an extension movement, the welding parts will be subjected to a large tensile force, and the weld between the welding parts and the main structure is prone to cracking, which will affect the normal use of the adjusting device. Utility Model Content

[0003] One purpose of the utility model is to solve the deficiencies in the prior art and provide an adjusting device with a firm structure.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A regulating device, comprising:

[0006] The main structure comprises a first leg assembly and a second leg assembly, wherein the first leg assembly and the second leg assembly are hinged via a rotating shaft, the first leg assembly is provided with a mounting hole and a support column received in the mounting hole, and the support column is provided on one side of the rotating shaft;

[0007] A support, which is rotatably connected to the main structure via the rotating shaft, the support is provided with a limiting portion, and the support column is rotatably accommodated in the limiting portion;

[0008] A telescopic cylinder, whose telescopic end is connected to an end of the support away from the rotating shaft, the telescopic cylinder drives the support to rotate around the rotating shaft, and the support drives the first leg assembly and the second leg assembly to rotate relative to each other through the support column.

[0009] In an exemplary embodiment, the support comprises:

[0010] Two connecting plates, the two connecting plates are arranged in parallel and at intervals, the two connecting plates are rotatably connected to the main structure, and each connecting plate is provided with the limiting portion;

[0011] A connecting shaft is connected to one end of the two connecting plates, and the telescopic cylinder is hinged on the connecting shaft.

[0012] In an exemplary embodiment, the support column includes a first support column and a second support column, the first support column and the second support column are respectively located on both sides of the rotating shaft, and the limiting portion includes a first limiting groove and a second limiting groove, the first limiting groove accommodates the first support column, and the second limiting groove accommodates the second support column.

[0013] In an exemplary embodiment, the first limiting groove and the second limiting groove have openings in opposite directions.

[0014] In an exemplary embodiment, the support includes a reinforcing plate, which is arranged between the two connecting plates and above the notch of the second limiting groove, and the reinforcing plate closes the notch of the second limiting groove.

[0015] In an exemplary embodiment, along the extension direction of the connecting plate, the reinforcing plate includes a plate body and protrusions provided at both ends of the plate body, and the connecting plate is provided with grooves matched with the protrusions.

[0016] In an exemplary embodiment, the reinforcing plate and the connecting plate are provided separately.

[0017] In an exemplary embodiment, the support includes a plurality of fasteners, a blind hole is provided at the bottom of the groove, a mounting hole is provided at the reinforcing plate, and the fasteners pass through the blind hole and the mounting hole respectively to tightly connect the reinforcing plate and the connecting plate.

[0018] In an exemplary embodiment, the support includes a sleeve, which is rotatably sleeved on the connecting shaft, and the outer periphery of the sleeve can abut against the main structure, and the outer periphery of the sleeve is provided with a rubber layer.

[0019] In an exemplary embodiment, a bearing is provided on the connecting shaft, and the bearing is located on the inner circumference of the sleeve.

[0020] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects:

[0021] The adjustment device of the utility model has a firm structural design and is not prone to weld cracking during use. Specifically, a mounting hole and a support column for accommodating the mounting hole are provided on the first leg assembly of the main structure. The support column is assembled on the main structure, which is easy to operate and effectively avoids problems such as weld cracking and desoldering caused by welding operations, and will not affect the normal use of the adjustment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of an adjusting device according to one embodiment of the utility model.

[0023] Figure 2 yes Figure 1 Exploded view of the regulating device shown.

[0024] Figure 3 yes Figure 2 A schematic structural diagram of the second leg assembly is shown.

[0025] Figure 4 yes Figure 1 Schematic diagram of the structure of the support shown.

[0026] Figure 5 yes Figure 4 Exploded view of the support shown.

[0027] The following are the descriptions of the reference numerals:

[0028] 1. Main structure; 11. First leg assembly; 111. First leg; 112. First upper mounting shaft; 113. First lower mounting shaft; 114. Lower slider; 115. Pad; 116. Mounting hole; 117. Support column; 1171. First support column; 1172. Second support column; 12. Second leg assembly; 121. Second leg; 122. Second upper mounting shaft; 123. Second lower mounting shaft; 124. Upper slider; 13. Rotating shaft; 14. Through hole; 15. Bracket;

[0029] 2. Support; 21. Limiting portion; 211. First limiting groove; 212. Second limiting groove; 22. Connecting plate; 221. Groove; 222. Blind hole; 23. Connecting shaft; 24. Connecting hole; 25. Reinforcement plate; 251. Plate body; 252. Protrusion; 253. Through hole; 254. Fastener; 26. Sleeve; 27. Bearing; 28. Rubber layer;

[0030] 3. Telescopic cylinder; DETAILED DESCRIPTION

[0031] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0032] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] The utility model provides an adjusting device, which has a firm structure and can be applied to a variety of equipment, such as a lifting device. This embodiment is described by applying the adjusting device to a lifting device.

[0035] See also Figure 1 As shown, an adjusting device comprises a main structure 1, a support 2 and a telescopic cylinder 3. The support 2 is rotatably connected to the middle of the main structure 1. One end of the telescopic cylinder 3 is connected to the support 2, and the other end of the telescopic cylinder 3 is connected to the bottom of the main structure 1. The telescopic cylinder 3 can drive the support 2 to rotate, thereby driving the main structure 1 to perform lifting and lowering movements.

[0036] The main structure 1 includes a first leg assembly 11 and a second leg assembly 12. The first leg assembly 11 and the second leg assembly 12 are hinged by a rotating shaft 13. The first leg assembly 11 and the second leg assembly 12 are arranged to intersect and form a scissor structure. The support 2 is rotatably connected between the first leg assembly 11 and the second leg assembly 12 through the rotating shaft 13. When the telescopic cylinder 3 performs telescopic movement, the support 2 is driven to rotate around the rotating shaft 13, and then the first leg assembly 11 and the second leg assembly 12 are driven to rotate, so that the main structure 1 can be converted between the retracted state and the deployed state.

[0037] Specifically, see Figure 2 Combined with Figure 1 As shown, the first leg assembly 11 includes two first legs 111, a first upper mounting shaft 112 and a first lower mounting shaft 113. The two first legs 111 are arranged at intervals. The first upper mounting shaft 112 connects the upper ends of the two first legs 111. The first lower mounting shaft 113 connects the lower ends of the two first legs 111. The spacing between the two end portions of the first lower mounting shaft 113 is greater than the spacing between the two first legs 111. The two first legs 111, the first upper mounting shaft 112 and the first lower mounting shaft 113 enclose a frame structure similar to a rectangle.

[0038] The second leg assembly 12 has a similar structure to the first leg assembly 11. The second leg assembly 12 includes two second legs 121, a second upper mounting shaft 122, and a second lower mounting shaft 123. The two second legs 121 are spaced apart. The second upper mounting shaft 122 connects the upper ends of the two second legs 121. The second lower mounting shaft 123 connects the lower ends of the two second legs 121. The spacing between the two end portions of the second lower mounting shaft 123 is greater than the spacing between the two second legs 121. The second legs 121, the second upper mounting shaft 122, and the second lower mounting shaft 123 enclose a frame structure similar to a rectangle.

[0039] Preferably, see Figure 3 A pad 115 is provided in the middle of the two first legs 111 to enhance the structural strength of the main structure 1 .

[0040] Continue to see Figure 1 and Figure 2 , the first leg assembly 11 and the second leg assembly 12 are intersected and arranged to form a scissor-fork structure. Specifically, the two first legs 111 are located between the two second legs 121. The first leg 111 and the second leg 121 intersect to form a scissor-fork structure. At the intersection of the first leg 111 and the second leg 121, the first leg 111 and the second leg 121 are provided with a through hole 14, and both ends of the rotating shaft 13 are simultaneously passed through the through hole 14 of the first leg 111 and the through hole 14 of the second leg 121, so as to realize the mutual hinge connection of the first leg assembly 11 and the second leg assembly 12.

[0041] The main structure 1 further includes a bracket 15. The bracket 15 can be used to carry items. The bracket 15 is arranged on the top of the first leg assembly 11 and the second leg assembly 12. Specifically, one end of the bracket 15 is hinged to the first upper mounting shaft 112. Upper sliders 124 are provided at both ends of the second upper mounting shaft 122 for sliding connection between the other end of the bracket 15 and the second upper mounting shaft 122.

[0042] The bottom of the main structure 1 can be connected to the base. Specifically, in this embodiment, one end of the base is hinged to the second lower mounting shaft 123, and both ends of the first lower mounting shaft 113 are provided with lower sliders 114 for sliding connection between the other end of the base and the first lower mounting shaft 113.

[0043] It should be noted that although the accompanying drawings illustrate the structure of the bracket 15, the actual structure of the bracket 15 is not limited to that shown in the drawings. The base and the bracket 15 can be configured with their own structures according to the actual application scenario. To facilitate the installation of the main structure 1, the base and the bracket 15 are correspondingly provided with an adaptive installation structure.

[0044] Preferably, mounting holes 116 are provided on opposite sides of the through hole 14 for receiving the rotating shaft 13 on the first supporting leg assembly 11, and supporting columns 117 are received in the mounting holes 116. It can be understood that the two supporting columns 117 are respectively located on both sides of the rotating shaft 13. In this embodiment, the supporting columns 117 are assembled on the first supporting leg assembly 11, which is convenient for processing and effectively avoids the problems of desoldering and cracking of welds caused by welding operations.

[0045] For ease of description, the two support columns 117 are respectively defined as a first support column 1171 and a second support column 1172 .

[0046] The support 2 is provided with a limiting portion 21. The support column 117 can be rotatably accommodated in the limiting portion 21. When the telescopic cylinder 3 performs an extension movement, that is, when the first leg assembly 11 and the second leg assembly 12 move from a retracted state to an unfolded state, the support 2 rotates around the rotation axis 13 under the drive of the telescopic cylinder 3, so that the outer periphery of the support column 117 gradually approaches the direction of the limiting portion 21, until the support column 117 is accommodated in the limiting portion 21 and abuts against the limiting portion 21, and then the lifting force of the telescopic cylinder 3 is transmitted to the main structure 1 through the support column 117, driving the first leg assembly 11 and the second leg assembly 12 to rotate relative to each other. When the telescopic cylinder 3 performs a contraction movement, the support 2 still rotates around the rotation axis 13 under the drive of the telescopic cylinder 3, and the support column 117 is separated from the limiting portion 21, that is, the support column 117 is no longer abutted against the limiting portion 21.

[0047] See also Figure 1 , Figure 4 and Figure 5 The support 2 includes two connecting plates 22 and a connecting shaft 23. The two connecting plates 22 are arranged in parallel and spaced apart. A connecting hole 24 is provided on the connecting plate 22. The connecting hole 24 is for the rotating shaft 13 to pass through, so that the support 2 can be rotatably connected to the main structure 1. The connecting shaft 23 is connected to one end of the two connecting plates 22, and the telescopic cylinder 3 is hinged on the connecting shaft 23. A limiting portion 21 is provided on each connecting plate 22.

[0048] Further, the limiting portion 21 includes a first limiting groove 211 and a second limiting groove 212. The first limiting groove 211 accommodates the first support column 1171, and the second limiting groove 212 accommodates the second support column 1172. The notch directions of the first limiting groove 211 and the second limiting groove 212 are opposite. Specifically, when the main structure 1 is in the unfolded state, the notch of the first limiting groove 211 faces the contraction direction of the telescopic cylinder 3, and the notch of the second limiting groove 212 faces the extension direction of the telescopic cylinder 3. When the main structure 1 is in the retracted state, the notch of the first limiting groove 211 faces the base, and the notch of the second limiting groove 212 faces the bracket 15.

[0049] It should be noted that, in this embodiment, two support columns 117 are provided, and correspondingly, two limiting grooves are also provided. In other embodiments, the support column 117 can also be provided as one, for example, only the first support column 1171 is provided, and correspondingly, the first limiting groove 211 on the support 2 is retained, and the second limiting groove 212 is cancelled; or only the second support column 1172 and the second limiting groove 212 are provided, which can also realize the transmission of force and make the main structure 1 move.

[0050] Preferably, the support 2 further includes a reinforcing plate 25 for enhancing the structural strength of the support 2. Specifically, the reinforcing plate 25 is disposed between the two connecting plates 22 and above the notch of the second limiting groove 212, and the reinforcing plate 25 closes the notch of the second limiting groove 212. The provision of the reinforcing plate 25 forms a hard link between the two connecting plates 22, which helps the synchronous movement of the two connecting plates 22, so that the two connecting plates 22 keep the same movement.

[0051] Preferably, the reinforcing plate 25 is separately provided from the connecting plate 22 for easy installation. Further, along the extension direction of the connecting plate 22, the reinforcing plate 25 includes a plate body 251 and protrusions 252 provided at both ends of the plate body 251. The connecting plate 22 is provided with a groove 221 adapted to the protrusion 252. The bottom of the groove 221 is provided with a blind hole 222. The reinforcing plate 25 is provided with a through hole 253. The fastener 254 passes through the blind hole 222 and the through hole 253 correspondingly to tightly connect the reinforcing plate 25 and the connecting plate 22. It can be understood that the structural setting of the protrusion 252 and the groove 221 has the function of preventing the reinforcing plate 25 from moving, making the structure of the support 2 more solid.

[0052] The support 2 includes a sleeve 26. The sleeve 26 is rotatably sleeved on the connecting shaft 23. At the beginning of the lifting of the telescopic cylinder 3, that is, when the bottom of the limit groove of the support 2 has not yet abutted against the support column 117, the sleeve 26 approaches the bracket 15 until the outer peripheral surface of the sleeve 26 abuts against the bracket 15. When the telescopic cylinder 3 continues to extend, the sleeve 26 supports the bracket 15 and provides an upward lifting force to the bracket 15. The arrangement in which the sleeve 26 is rotatably sleeved on the connecting shaft 23 makes rolling friction between the bracket 15 and the support 2, so that when the main structure 1 is unfolded, the friction to be overcome is small, which is conducive to improving the output efficiency of the telescopic cylinder 3.

[0053] Preferably, a bearing 27 is provided on the connecting shaft 23, and the bearing 27 is located on the inner periphery of the sleeve 26 to reduce resistance. Further, two bearings 27 are provided, each close to the end of the sleeve 26.

[0054] Preferably, a rubber layer 28 is provided on the outer periphery of the sleeve 26 to effectively avoid the generation of noise and abnormal sound.

[0055] Preferably, the outer periphery of the sleeve 26 exceeds the end edge of the connecting plate 22. When the outer periphery of the sleeve 26 abuts against the bracket 15, there is a gap between the bracket 15 and the connecting plate 22, thereby effectively avoiding the bracket 15 from causing wear to the end of the oil cylinder and the connecting plate 22, which is beneficial to prolonging the service life of the adjusting device.

[0056] It can be seen from the above technical solution that the adjustment device provided in this embodiment has the following advantages and beneficial implementation effects.

[0057] The structural arrangement of the support column 117 and the support 2 makes the structural design of the adjustment device firm and the weld cracking is not easy to occur during use. The support 2 is provided with a reinforcing plate 25, which further enhances the structural strength of the support 2 and is conducive to the synchronous movement of the two connecting plates 22. The support 2 is also provided with a sleeve 26, which is conducive to improving the output efficiency of the telescopic cylinder 3. And through the structural arrangement of the sleeve 26, that is, the outer periphery of the sleeve 26 is provided with a rubber layer 28, the generation of noise is effectively avoided; the inner periphery of the sleeve 26 is provided with a bearing 27, which effectively reduces the resistance.

[0058] The above embodiments are merely exemplary descriptions of the structures. The structures in the embodiments are not fixed combination structures. In the absence of structural conflicts, the structures in multiple embodiments can be used in any combination.

[0059] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A regulating device, characterized in that: include: The main structure comprises a first leg assembly and a second leg assembly, wherein the first leg assembly and the second leg assembly are hinged via a rotating shaft, the first leg assembly is provided with a mounting hole and a support column received in the mounting hole, and the support column is provided on one side of the rotating shaft; A support, which is rotatably connected to the main structure via the rotating shaft, the support is provided with a limiting portion, and the support column is rotatably accommodated in the limiting portion; A telescopic cylinder, whose telescopic end is connected to an end of the support away from the rotating shaft, the telescopic cylinder drives the support to rotate around the rotating shaft, and the support drives the first leg assembly and the second leg assembly to rotate relative to each other through the support column.

2. The adjusting device according to claim 1, characterized in that: The support comprises: Two connecting plates, the two connecting plates are arranged in parallel and at intervals, the two connecting plates are rotatably connected to the main structure, and each connecting plate is provided with the limiting part; A connecting shaft is connected to one end of the two connecting plates, and the telescopic cylinder is hinged on the connecting shaft.

3. The adjusting device according to claim 2, characterized in that: The support column includes a first support column and a second support column, the first support column and the second support column are respectively located on both sides of the rotating shaft, the limiting portion includes a first limiting groove and a second limiting groove, the first limiting groove accommodates the first support column, and the second limiting groove accommodates the second support column.

4. The adjusting device according to claim 3, characterized in that: The notch directions of the first limiting groove and the second limiting groove are opposite.

5. The adjusting device according to claim 3, characterized in that: The support includes a reinforcing plate, which is arranged between the two connecting plates and above the notch of the second limiting groove, and the reinforcing plate closes the notch of the second limiting groove.

6. The adjusting device according to claim 5, characterized in that: Along the extension direction of the connecting plate, the reinforcing plate includes a plate body and protrusions arranged at both ends of the plate body, and the connecting plate is provided with grooves adapted to the protrusions.

7. The adjusting device according to claim 5, characterized in that: The reinforcing plate and the connecting plate are arranged separately.

8. The adjusting device according to claim 6, characterized in that: The support includes a plurality of fasteners, a blind hole is provided at the bottom of the groove, a mounting hole is provided at the reinforcing plate, and the fasteners pass through the blind hole and the mounting hole correspondingly to tightly connect the reinforcing plate and the connecting plate.

9. The adjusting device according to claim 2, characterized in that: The support comprises a sleeve, which is rotatably sleeved on the connecting shaft, the outer periphery of the sleeve can abut against the main structure, and the outer periphery of the sleeve is provided with a rubber layer.

10. The adjustment device according to claim 9, characterized in that The connecting shaft is provided with a bearing, and the bearing is located on the inner periphery of the sleeve.

Images