A telescopic leg mechanism

Abstract

The present application discloses a telescopic leg mechanism, wherein a mounting bracket is mounted in a telescopic movable channel, and a plurality of pipe clamps are connected to the mounting bracket, and the plurality of pipe clamps can clamp pipelines from a plurality of positions to ensure the orderliness of the pipelines inside the legs, thereby facilitating the design of reducing the cross-sectional specifications of the telescopic movable channel, thereby realizing the miniaturization of the fixed legs, and the other end of the mounting bracket is mounted on the inner circumference of the movable leg, and when the movable leg is telescopically moved, the movable leg can slide relative to one end of the mounting bracket, and the structure is simple and reliable.

Description

Technical Field

[0001] The present application relates to the field of machinery, and in particular to a telescopic leg mechanism. Background Art

[0002] Crane is a kind of engineering machinery commonly used in the prior art. In some technical schemes, the hydraulic pipelines of the crane are often arranged inside the telescopic legs. However, such an arrangement needs to ensure the orderliness of the internal hydraulic pipelines during the extension of the telescopic legs. On the other hand, since the hydraulic pipelines are arranged inside the telescopic legs, the cross-sectional area of ​​the telescopic legs needs to be increased accordingly. Utility Model Content

[0003] The embodiment of the present application provides a telescopic leg mechanism, which can achieve pipeline stability and reduce the cross-sectional design specifications of the legs.

[0004] The present application embodiment discloses a telescopic leg mechanism, comprising:

[0005] A fixed leg, wherein a telescopic movable channel is arranged inside the fixed leg along a first direction;

[0006] A movable leg, at least part of which is slidably disposed in the telescopic movable channel along a first direction, and a pipeline channel is disposed on the movable leg along the first direction;

[0007] A telescopic oil cylinder, one end of which is connected to the fixed outrigger, and the other end of which is connected to the movable outrigger;

[0008] A mounting bracket is arranged in the telescopic movable channel, and one end of the mounting bracket is fixedly arranged in the telescopic movable channel, and the other end is arranged in the pipeline channel of the movable leg; the mounting bracket is provided with a plurality of assembly parts along the first direction;

[0009] The pipe clamps are arranged on the assembly part in a one-to-one correspondence, and at least part of the pipelines to be installed are clamped on the pipe clamps.

[0010] The telescopic leg mechanism of the present application has at least the following beneficial effects:

[0011] In the telescopic leg mechanism of the present application, a mounting bracket is installed in the telescopic movable channel, and a plurality of pipe clamps are connected to the mounting bracket. The plurality of pipe clamps can clamp the pipeline from a plurality of positions to ensure the orderliness of the pipeline inside the leg, so as to facilitate the design to reduce the cross-sectional specifications of the telescopic movable channel, thereby realizing the miniaturization of the fixed leg, and the other end of the mounting bracket is arranged on the inner circumference of the movable leg, and when the movable leg is telescopically moved, the movable leg can slide relative to one end of the mounting bracket, and the structure is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the telescopic leg mechanism of the embodiment of the present application (illustrating the state when the movable leg is retracted);

[0014] Figure 2 is another schematic diagram of the telescopic leg mechanism of the embodiment of the present application (illustrating the state when the movable leg is extended);

[0015] Figure 3 is a top view of the telescopic leg mechanism of the embodiment of the present application;

[0016] Figure 4 is another top view of the telescopic leg mechanism of the embodiment of the present application (illustrating the mounting bracket);

[0017] Figure 5 yes Figure 1 The enlarged view of point A in the middle;

[0018] Figure 6 It is a schematic diagram of pipelines without right-angle joints and with right-angle joints designed;

[0019] Figure 7 It is a structural diagram of the mounting bracket;

[0020] Figure 8 yes Figure 7 A top view of

[0021] Fig. 9 It is a schematic diagram of the assembly part and the pipe clamp;

[0022] Fig.10 It is an exploded schematic diagram of the assembly part and the pipe clamp;

[0023] Description of the reference numerals is as follows:

[0024] 1. Fixed legs; 1a. Telescopic channel; 1b. Support;

[0025] 2. Movable legs; 2a. Pipeline channel; 2b. Guide groove;

[0026] 3. Telescopic cylinder;

[0027] 4. Mounting bracket; 41. Bottom plate; 411. Mounting hole; 42. Rib plate; 43. Assembly part; 431. Magnetic block; 44. Sliding contact part;

[0028] 5. pipe clamp; 51. mounting portion; 52. first clamp block; 53. second clamp block; 54. connecting bolt;

[0029] 6. Pipeline to be installed; 6a. First section of pipeline; 6b. Second section of pipeline;

[0030] 7. Right angle connector;

[0031] 8a, first bend; 8b, second bend. DETAILED DESCRIPTION

[0032] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] like Figures 1 to 4 As shown, the embodiment of the present application discloses a telescopic leg mechanism, including a fixed leg 1, a movable leg 2, a telescopic oil cylinder 3, a mounting bracket 4 and a pipe clamp 5;

[0035] The interior of the fixed leg 1 is provided with a telescopic channel 1a along a first direction, and the first direction is configured as the telescopic direction of the movable leg 2;

[0036] At least part of the movable leg 2 is slidably arranged in the telescopic movable channel 1a along the first direction, and the movable leg 2 is provided with a pipeline channel 2a along the first direction, and the pipeline channel 2a facilitates the internal pipeline to extend outward. In the embodiment of the present application, the fixed leg 1 and the movable leg 2 are preferably a hollow square box structure;

[0037] One end of the telescopic cylinder 3 is connected to the support 1b inside the fixed leg 1, and the other end of the telescopic cylinder 3 is connected to the movable leg 2. The telescopic direction of the telescopic cylinder 3 is configured as a first direction, and the movable leg 2 is driven to telescope in the telescopic activity channel 1a by the telescopic cylinder 3.

[0038] The mounting bracket 4 is arranged in the telescopic movable channel 1a, and one end of the mounting bracket 4 is fixedly arranged in the telescopic movable channel 1a, and the other end is laid in the pipeline channel 2a of the movable leg 2; the mounting bracket 4 is provided with a plurality of assembly portions 43 along the first direction; wherein the mounting bracket 4 is arranged along the first direction, the distance between the mounting bracket 4 and the telescopic movable channel 1a in the height direction is defined as H1, the inner width of the telescopic movable channel 1a is defined as H2, and H1 is less than 1 / 3H2, so that the mounting bracket 4 can be as close to the inner periphery of the telescopic movable channel 1a as possible, leaving extra space for the pipeline, and thus the miniaturization of the fixed leg 1 can be achieved in design;

[0039] There are multiple pipe clamps 5 , and the multiple pipe clamps 5 are arranged on the assembly portion 43 in a one-to-one correspondence. At least part of the pipelines 6 to be installed are clamped on the pipe clamps 5 .

[0040] Preferably, Figure 5 and Figure 6 As shown, the pipeline 6 to be installed includes a first section of pipeline 6a and a second section of pipeline 6b, the first section of pipeline 6a is clamped on the pipe clamp 5, and the first section of pipeline 6a and the second section of pipeline 6b are connected via a right-angle joint 7.

[0041] The first section of pipeline 6 a is arranged along the first direction, and a plurality of pipe clamps 5 can clamp the outer circumference of the first section of pipeline 6 a .

[0042] Among them, Figure 5 As shown, one end of the first section pipeline 6a is connected to the second section pipeline 6b via a right-angle joint 7. The right-angle joint 7 has two intersecting axes L1 and L2, and the axis L1 is vertically arranged.

[0043] The first section of pipeline 6a is configured as a hard pipe.

[0044] When the movable leg 2 is extended and retracted relative to the fixed leg 1 , the first section of the pipeline 6 a is relatively stationary, and the second section of the pipeline 6 b moves following the movable leg 2 .

[0045] In the embodiment of the present application, by designing the right-angle joint 7, some pipelines can be reduced, and it is also convenient to reduce the size of the legs in design. Specifically, Figure 6 As shown, Figure 6(a) is a schematic diagram of the connection position of the fixed section and the movable section of the pipeline when the right-angle joint 7 is not designed. The pipeline at this connection position needs to be bent at two places (such as Figure 6 As shown in the reference numerals 8a and 8b in the figure, the space required here will also increase accordingly, and the length of the pipeline will also need to be increased unnecessarily. On the contrary, Figure 6 As shown in (b), Figure 6 (b) is a schematic diagram of the connection position of the first section of pipeline 6a and the second section of pipeline 6b after using the right-angle joint 7. It can be seen that only one bend is made at this connection position, which can effectively reduce the space required for this position and reduce the required length of the pipeline.

[0046] Preferably, Figure 7 and Figure 8 As shown, the mounting bracket 4 includes a base plate 41, a rib plate 42, an assembly portion 43 and a sliding contact portion 44; a mounting hole 411 is provided on the base plate 41, and the mounting bracket 4 is installed in the telescopic movable channel 1a through the mounting hole 411; a plurality of the rib plates 42 are arranged on the base plate 41 along a first direction; the assembly portion 43 is arranged between two adjacent rib plates 42; the sliding contact portion 44 is arranged on the base plate 41, and the base plate 41 is constructed in the pipeline channel 2a of the movable leg 2 through a sliding portion.

[0047] Among them, a mounting plate is arranged at the right end of the bottom plate 41, a mounting hole 411 is arranged on the mounting plate, a support 1b is arranged on the right side of the telescopic movable channel 1a, and the mounting hole 411 and the support 1b are connected by bolts.

[0048] Among them, a plurality of ribs 42 are arranged at intervals on the upper surface of the bottom plate 41 along the first direction, which can improve the strength of the structure.

[0049] The assembly portion 43 is disposed between two adjacent rib plates 42 along the first direction, and the assembly portion 43 is used to install the pipe clamp 5 .

[0050] The sliding contact portion 44 is made of nylon material and is mounted on the inner wall of the pipeline channel 2a. When the movable leg 2 is extended or retracted, the sliding contact portion 44 can slide relative to the inner wall.

[0051] In the embodiment of the present application, the bottom plate 41 is set up in the pipeline channel 2a of the movable leg 2 through the sliding contact portion 44, which can ensure the structural stability of the bottom plate 41. At the same time, since one end of the bottom plate 41 is set up on the inner lower surface of the pipeline channel 2a through the sliding contact portion 44, the bottom plate 41 can be as close to the inner lower surface of the pipeline channel 2a as possible, leaving as much upper space as possible for the pipeline. In some embodiments, pipelines 6 to be installed are provided on both sides of the mounting bracket 4, that is, pipelines can be installed on the left and right sides of the mounting bracket 4, respectively. Since the two pipelines are installed on both sides of the mounting bracket 4, they do not interfere with each other and can make the best use of the effective space.

[0052] Preferably, Figure 5 As shown, a guide groove 2b is provided on the inner wall of the pipeline channel 2a along the first direction, and at least part of the sliding contact portion 44 is provided in the guide groove 2b.

[0053] A guide groove 2b is provided on the lower surface of the pipeline channel 2a, at least part of the sliding contact portion 44 is arranged in the guide groove 2b, and the guide groove 2b and the sliding contact portion 44 can slide relative to each other under the drive of the telescopic cylinder 3.

[0054] In the embodiment of the present application, the guide groove 2b is designed to ensure the stability of the mounting bracket 4 and prevent the mounting bracket 4 from being displaced left and right.

[0055] Preferably, Fig. 9 and Fig.10 As shown, the assembly portion 43 is configured as a pipe clamp slide rail, and the pipe clamp 5 is provided with a mounting portion 51 , and the mounting portion 51 is disposed in the pipe clamp slide rail.

[0056] Wherein, the length direction of the pipe clamp slide rail and the first direction are perpendicular to each other in a horizontal plane.

[0057] When installing the pipe clamp 5 , it is only necessary to slide the mounting portion 51 into the pipe clamp slide rail.

[0058] In the embodiment of the present application, the pipe clamp 5 is installed by means of a pipe clamp slide rail, and the installation method is simple and quick, which can meet the requirements of rapid assembly on site.

[0059] Preferably, a magnetic block 431 is provided in the pipe clamp slide rail, and the magnetic block 431 can be connected to the mounting portion 51 by suction.

[0060] A sinking groove is provided on the tube clamp slide rail, and a magnetic attraction block 431 (such as a magnet) is provided in the sinking groove, and the upper surface of the magnetic attraction block 431 is flush with the bottom surface of the tube clamp slide rail.

[0061] The mounting portion 51 of the pipe clamp 5 is made of metal.

[0062] In the embodiment of the present application, the pipe clamp 5 can be quickly attracted into place under the magnetic attraction of the magnetic block 431, and during actual use, the magnetic block 431 can hold the pipe clamp 5 so that the pipeline will not undergo slight displacement, thereby further improving the stability of the structure. When disassembling, the pipe clamp 5 can be disassembled by simply sliding it out of the outer side of the pipe clamp slide rail, which is simple and quick.

[0063] Preferably, Fig.10 As shown, the pipe clamp 5 includes a mounting portion 51, a first clamping block 52, a second clamping block 53 and a connecting bolt 54; the mounting portion 51 is arranged in the pipe clamp slide rail; the first clamping block 52 is arranged on the mounting portion 51, and the first pipe clamp 5 is provided with a first arc groove; the second clamping block 53 is provided with a second arc groove, the second clamping block 53 is connected to the first clamping block 52 by a connecting bolt 54, and the first arc groove and the second arc groove form a circular space for clamping the pipeline.

[0064] The shape of the mounting portion 51 is configured as a rectangular plate, and a slide groove is provided on the pipe clamp slide rail, and the mounting portion 51 can slide into the slide groove.

[0065] The first clamp block 52 is disposed on the upper surface of the mounting portion 51 , a threaded hole is disposed on the first clamp block 52 , a corresponding through hole is disposed on the second clamp block 53 , and the connecting bolt 54 passes through the through hole and is threadedly connected to the threaded hole on the first clamp block 52 .

[0066] The inner diameters of the first arc groove and the second arc groove are equal, and the first arc groove and the second arc groove together form a circular space, and the pipeline 6 to be installed is clamped in the circular space.

[0067] In the embodiment of the present application, the pipeline is clamped by two clamping blocks to prevent the pipeline from running around when the legs are extended or retracted, thereby achieving the purpose of the pipeline following the extension and retraction in an orderly manner.

[0068] Preferably, stripe grooves are provided in the first arc groove of the first clamping block 52 and in the second arc groove of the second clamping block 53 .

[0069] Wherein, a plurality of stripe grooves (arc-shaped grooves) are arranged on the inner arc surface of the first arc groove and the inner arc surface of the second arc groove.

[0070] In the embodiment of the present application, the purpose of providing the striped groove is to increase the friction between the clamp block and the pipeline to prevent the pipeline from running around.

[0071] One working mode of the telescopic leg mechanism in the embodiment of the present application is as follows:

[0072] When the movable leg 2 is not extended, the first section of the pipeline 6a is clamped on the pipe clamp 51, which is arranged on the mounting bracket 4, and the second section of the pipeline 6b is received in the pipeline channel 2a;

[0073] When the movable leg 2 extends forward, the first section of the pipeline 6a remains stationary relative to the movable leg 2, while the second section of the pipeline 6b moves forward following the movable leg 2.

[0074] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application.

Claims

1. A telescopic leg mechanism, characterized in that: include: A fixed leg (1), wherein a telescopic movable channel (1a) is arranged inside the fixed leg (1) along a first direction; A movable leg (2), at least a portion of the movable leg (2) is slidably arranged in the telescopic movable channel (1a) along a first direction, and the movable leg (2) is provided with a pipeline channel (2a) along the first direction; A telescopic oil cylinder (3), one end of which is connected to the fixed leg (1) and the other end of which is connected to the movable leg (2); A mounting bracket (4), the mounting bracket (4) being arranged in the telescopic movable channel (1a), and one end of the mounting bracket (4) being fixedly arranged in the telescopic movable channel (1a), and the other end of the mounting bracket (4) being bridged in the pipeline channel (2a) of the movable leg (2); the mounting bracket (4) being provided with a plurality of assembly portions (43) along a first direction; Pipe clamps (5), the pipe clamps (5) are arranged on the assembly portion (43) in a one-to-one correspondence, and at least a portion of the pipelines (6) to be installed are clamped on the pipe clamps (5).

2. The telescopic leg mechanism according to claim 1, characterized in that: The pipeline (6) to be installed comprises a first section of pipeline (6a) and a second section of pipeline (6b), wherein the first section of pipeline (6a) is clamped on the pipe clamp (5), and the first section of pipeline (6a) and the second section of pipeline (6b) are connected via a right-angle joint (7).

3. The telescopic leg mechanism according to claim 1 or 2, characterized in that: The mounting bracket (4) comprises a bottom plate (41), a rib plate (42), an assembly portion (43) and a sliding contact portion (44); The bottom plate (41) is provided with a mounting hole (411), and the mounting bracket (4) is mounted in the telescopic movable channel (1a) through the mounting hole (411); A plurality of rib plates (42) are arranged on the bottom plate (41) along a first direction; The assembly portion (43) is arranged between two adjacent rib plates (42); The sliding contact portion (44) is arranged on the bottom plate (41), and the bottom plate (41) is mounted in the pipeline channel (2a) of the movable leg (2) through the sliding contact portion (44).

4. The telescopic leg mechanism according to claim 3, characterized in that: A guide groove (2b) is provided on the inner wall of the pipeline channel (2a) along a first direction, and at least part of the sliding contact portion (44) is provided in the guide groove (2b).

5. The telescopic leg mechanism according to claim 4, characterized in that: The assembly portion (43) is configured as a pipe clamp slide rail, the pipe clamp (5) is provided with a mounting portion (51), and the mounting portion (51) is arranged in the pipe clamp slide rail.

6. The telescopic leg mechanism according to claim 5, characterized in that: A magnetic attraction block (431) is arranged in the pipe clamp slide rail, and the magnetic attraction block (431) can be attracted and connected with the mounting portion (51).

7. The telescopic leg mechanism according to claim 6, characterized in that: The pipe clamp (5) comprises a mounting portion (51), a first clamping block (52), a second clamping block (53) and a connecting bolt (54); The mounting portion (51) is arranged in the pipe clamp slide rail; The first clamping block (52) is arranged on the mounting portion (51), and the first clamping block (52) is provided with a first arc groove; The second clamping block (53) is provided with a second arc groove, the second clamping block (53) is connected to the first clamping block (52) via a connecting bolt (54), and the first arc groove and the second arc groove form a circular space for clamping the pipeline.

8. The telescopic leg mechanism according to claim 7, characterized in that: Stripe grooves are provided in the first arc groove of the first clamping block (52) and in the second arc groove of the second clamping block (53).

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