A combined linkage for component folding

Abstract

The application discloses a combined connecting rod mechanism for component folding, which comprises a first connecting rod, a second connecting rod, a connecting plate, a third connecting rod, a sliding rod and a sliding channel. The connecting plate comprises a first connecting surface and a second connecting surface which are integrally arranged, and the second connecting surface is higher than the first connecting surface. The first end of the second connecting surface is rotationally connected with one end of the third connecting rod, and the second end is rotationally connected with one end of the second connecting rod. The sliding rod is arranged in the sliding channel and slides along the sliding channel. The other end of the second connecting rod is rotationally connected with one end of the sliding rod. The other end of the sliding rod is rotationally connected with one end of the first connecting rod. The other end of the first connecting rod is rotationally connected with the middle part of the third connecting rod. The connecting mechanism is composed of multiple connecting rods and the sliding channel, is suitable for the folding of components, and effectively avoids the collision between the components and the stress concentration of the local position on the components.

Description

TECHNICAL FIELD

[0001] The present application relates to a combined linkage mechanism, in particular to a combined linkage mechanism for folding of a component. BACKGROUND

[0002] Generally, the crank linkage mechanism is used for power transmission of a machine, and the load is small and will not cause local stress concentration of the machine, resulting in deformation and even damage of the machine. For the folding technology of some house structures, due to the self-weight and large cross-sectional size of the components, when the ordinary crank linkage mechanism is installed on the structural components, the deformation of the crank linkage is often caused by the large load transmitted by the components, or a large stress concentration is caused at the connection between the crank linkage and the component, resulting in local deformation of the component, thereby reducing the safety and applicability.

[0003] In engineering, the folding and unfolding of the component requires high precision, and the components after unfolding need to be closely fitted without gaps, so when folding, the junction of the two components is prone to collision. Generally, the crank linkage mechanism usually takes the contact point of two plates as the center and rotates by hinge to roughly complete the folding and unfolding process of the two plates, and cannot control the high-precision motion curve and ensure that the edges and corners of the plate will not collide, so reducing stress concentration and ensuring high-precision component folding process have become technical problems to be solved. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art and provide a combined linkage mechanism for folding of a component to complete a high-precision motion curve, avoid collision between components, and reduce stress concentration at the connection between the component and the linkage.

[0005] Technical solution: The combined linkage mechanism for folding of a component comprises a first linkage, a second linkage, a connecting plate, a third linkage, a sliding rod, and a sliding channel. The connecting plate comprises a first connecting surface and a second connecting surface which are integrally arranged, and the second connecting surface is higher than the first connecting surface. The first connecting surface is fixedly connected with a side plate of a prefabricated house during work. The first end of the second connecting surface is rotationally connected with one end of the third linkage, and the second end of the second connecting surface is rotationally connected with one end of the second linkage.

[0006] The sliding channel is embedded in the bottom plate of a prefabricated house to be folded during work, and the sliding rod is arranged in the sliding channel and slides along the sliding channel. The other end of the second linkage is rotationally connected with one end of the sliding rod. The other end of the sliding rod is rotationally connected with one end of the first linkage. The other end of the first linkage is rotationally connected with the middle part of the third linkage. The other end of the third linkage is rotationally connected with the bottom plate of the prefabricated house to be folded during work.

[0007] Preferably, bolt holes are arranged on the first connecting surface of the connecting plate for connecting with the side plates of the prefabricated house to be folded by bolts; the first end of the second connecting surface is provided with a first bolt column, and the second end of the second connecting surface is provided with a first bolt hole.

[0008] Preferably, the slide channel is a rectangular groove, and a long strip-shaped protruding track is arranged on the middle part of the upper and lower inner surfaces in the groove.

[0009] Preferably, the slide rod comprises a slide frame and a slide block; the two ends of the slide frame are provided with first circular through holes, and the slide block is embedded in the two ends of the slide frame and is provided with second circular through holes matched with the first circular through holes; the upper and lower ends of the slide block are respectively provided with a slide groove matched with the protruding track in the slide channel.

[0010] Preferably, one end of the second connecting rod is provided with a second bolt column inserted into the first circular through hole and the second circular through hole at one end of the slide rod; the other end of the second connecting rod is provided with a third bolt column in the opposite direction inserted into the first bolt hole.

[0011] Preferably, one end of the third connecting rod is provided with a fourth bolt column inserted into a reserved hole of the bottom plate of the prefabricated house to be folded; the middle part of the third connecting rod is provided with a fifth bolt column; the other end of the third connecting rod is provided with a second bolt hole connected with the first bolt column.

[0012] Preferably, one end of the first connecting rod is provided with a sixth bolt column inserted into the first circular through hole and the second circular through hole at the other end of the slide rod; the first connecting rod is provided with a third bolt hole connected with the fifth bolt column.

[0013] When the plate is folded and unfolded, the slide rod is driven to move horizontally on the track of the slide channel through the rotation between the first connecting rod, the second connecting rod and the third connecting rod, so that the folding and unfolding process of the component is completed.

[0014] The use method of the combined connecting rod mechanism for folding the component comprises the following steps:

[0015] (1) installing the slide rod in the slide channel, and clamping the slide groove on the slide block into the protruding track of the slide channel;

[0016] (2) inserting the sixth bolt column of the first connecting rod into the first circular through hole and the second circular through hole at one end of the slide rod, and connecting the third bolt hole of the first connecting rod with the fifth bolt column in the middle part of the third connecting rod;

[0017] (3) inserting the second bolt column of the second connecting rod into the first circular through hole and the second circular through hole at the other end of the slide rod, and inserting the third bolt column of the connecting rod into the first bolt hole of the connecting plate;

[0018] (4) the first bolt column on the connecting plate is inserted into the second bolt hole on the third connecting rod.

[0019] Advantages: compared with the prior art, the present application has the following advantages:

[0020] (1) the side of the connecting plate of the present application adopts a variable thickness mode to place the spatial position of the multi-connecting rod outside the end section of the component, effectively preventing the mutual collision of the component and the connecting rod during the folding process of the component, and also preventing the interference caused by the existence of the connecting rod when installing other devices on the component;

[0021] (2) the present application connects the connecting plate at the front and rear end surfaces with the second and third connecting rods through reasonable design, so that the third connecting rod and the second and first connecting rods do not collide when the rods are fastened, ensuring the safety between the connecting rods;

[0022] (3) the present application adopts the mode of sliding block embedded in the sliding carriage, and the mode of connecting the upper and lower ends of the sliding block with the protruding track, which disperses the concentrated force of the rod to the sliding carriage and the protruding track, and the sliding way is embedded in the component, preventing stress concentration caused by direct contact between the component and the sliding block;

[0023] (4) the present application realizes high-precision motion curve in the folding and unfolding process of the component through the ingenious cooperation of multiple connecting rods and sliding rods, effectively avoids the collision of the edges of the two components during the folding and unfolding process, and does not affect the contact density of the two components after unfolding. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the overall structure schematic diagram of the present application mechanism.

[0025] Figure 2 It is the structure schematic diagram of the first connecting rod of the present application.

[0026] Figure 3 It is the structure schematic diagram of the second connecting rod of the present application.

[0027] Figure 4 It is the structure schematic diagram of the connecting plate of the present application.

[0028] Figure 5 It is the structure schematic diagram of the third connecting rod of the present application.

[0029] Figure 6 It is the structure schematic diagram of the sliding rod of the present application.

[0030] Figure 7 It is the structure schematic diagram of the sliding carriage of the present application.

[0031] Figure 8 It is the structure schematic diagram of the sliding block of the present application.

[0032] Figure 9This is a schematic diagram of the slide structure of the present invention.

[0033] Figure 10 This is a schematic diagram of the structure of the mechanism of the present invention used to connect two folded plates.

[0034] In the diagram: 1. First connecting rod; 2. Second connecting rod; 3. Connecting plate; 4. Third connecting rod; 5. Slide rod; 6. Slide rail; 7. Base plate; 8. Side plate; 9. Electric cylinder; 1-1. Sixth bolt; 1-2. Third bolt hole; 2-1. Second bolt; 2-2. Third bolt; 3-1. Bolt hole; 3-2. First bolt; 3-3. First bolt hole; 4-1. Fourth bolt; 4-2. Second bolt hole; 4-3. Fifth bolt; 5-1. Slide carriage; 5-2. Slider; 5-1a. First circular through hole; 5-2a. Slide groove; 5-2b. Second circular through hole; 6-1. Track. Detailed Implementation

[0035] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the embodiments described.

[0036] Example 1: In this example, as Figures 1-10 As shown, the mechanism of this invention is used to fold the base plate 7 and side plates 8 of a prefabricated house. The base plate 7 and side plates 8 are prefabricated frame panels composed of galvanized folding parts. Six regularly aligned bolt holes are pre-drilled at the bottom of the side plate 8. The bolt holes 3-1 on the connecting plate 3 correspond to the bolt holes on the side plate 8, and the connecting plate 3 can be fixed to the side plate 8 using high-strength bolts. The side of the base plate 7 has a rectangular slot for placing the slide rail 6 and a circular hole for inserting the fourth bolt 4-1 on the third connecting rod 4. To achieve automatic folding of the panels, a detachable electric cylinder 9 is used to apply the external force required for folding. The electric cylinder 9 is inserted into the pre-drilled holes on the base plate 7 and side plates 8 via a pin.

[0037] The high-precision motion curve is completed through the mechanism of the present invention to achieve high-precision folding of the base plate 7 and the side plate 8.

[0038] The slide rail 6 is fixed in the rectangular slot of the base plate 7. The slide frame 5-1 and the slider 5-2 are combined to form the slide rod 5, and the slide rod 5 is installed in the slide rail 6. The slide groove 5-2a on the slider 5-2 is engaged with the raised track 6-1 of the slide rail 6.

[0039] Align the bolt holes 3-1 on the connecting plate 3 with the bolt holes on the side plate 8, and fix the connecting plate 3 to the side plate 8 with high-strength bolts.

[0040] The sixth pin 1-1 of the first link 1 is inserted into the first circular hole 5-1a and the second circular hole 5-2b at one end of the slide bar 5, and the fifth pin 4-3 in the middle of the third link 4 is inserted into the third pin hole 1-2 of the first link 1, so as to realize the connection of the first link 1 with the slide bar 5 and the third link 4.

[0041] The cylindrical pin 2-1 of the second link 2 is inserted into the first circular hole 5-1a and the second circular hole 5-2b at the other end of the slide bar 5, and the third pin 2-2 of the second link 2 is inserted into the first pin hole 3-3 of the connecting plate 3, so as to realize the connection of the second link 2 with the slide bar 5 and the connecting plate 3.

[0042] The first pin 3-2 on the connecting plate 3 is inserted into the second pin hole 4-2 on the third link 4, so as to realize the connection of the connecting plate 3 and the third link 4.

[0043] The fourth pin 4-1 on the third link 4 is inserted into the circular hole reserved on the bottom plate 7, so as to realize the connection of the third link 4 and the bottom plate 7.

[0044] In operation, as the side plate 8 rotates clockwise from the vertical direction, the variable-thickness plate part of the connecting plate 3 ensures that the third link 4 and the second link 2 do not collide during counterclockwise rotation around the points D and C, and the load from the side plate 8 is transmitted to the third link 4 and the second link 2 through the connecting points C and D. The third link 4 rotates counterclockwise around the points D and F, drives the point C to move downward, and thus drives the side plate 8 to fold, and the fifth pin 4-3 in the middle of the third link 4 drives the first link 1 to rotate clockwise around the point E without colliding with the third link 4, so as to transmit the load on the third link 4 to the slide block 5-2 through the first link 1. The second link 2 rotates counterclockwise around the point B, and transmits the load on the second link 2 to the slide block 5-2.

[0045] The middle and both ends of the slide carriage 5-1 are cut open, and the slide block 5-2 is embedded in the cut-open parts at both ends. The height of the slide carriage 5-1 is slightly lower than the height of the slide block 5-2, so as to ensure that it does not contact the raised track 6-1 of the slide 6. When bearing the horizontal load transmitted by the second link 2, the slide block 5-2 moves horizontally to the left on the raised track 6-1, so as to drive the side plate 8 to fold clockwise. The top and bottom of the slide block 5-2 are provided with two slide grooves 5-2a, which are embedded with the corresponding raised tracks 6-1 on the upper and lower slides 6, so as to bear the vertical load transmitted by the second link 2 and transmit the vertical load to the slide. The slide 6 is a rectangular groove, the outer surface of which is welded with the reserved groove of the plate part, and the inner part is embedded in the bottom plate, so as to uniformly transmit the vertical load transmitted by the slide block 5-2 to the bottom plate 7, and reduce the stress concentration phenomenon.

[0046] While the application has been described and illustrated with reference to specific preferred embodiments, it is not intended that it be limited to these particulars. Various changes in form and detail can be made without departing from the spirit and scope of the application as defined by the appended claims.

Claims

1. A combined linkage mechanism for component folding, comprising a first linkage (1), a second linkage (2), a connecting plate (3), a third linkage (4), a sliding rod (5) and a sliding track (6), characterized in that: the connecting plate (3) comprises a first connecting surface and a second connecting surface arranged integrally, the second connecting surface being higher than the first connecting surface; the first connecting surface is fixedly connected with a side plate (8) of a prefabricated house in operation; a first end of the second connecting surface is rotatably connected with one end of the third linkage (4), and a second end of the second connecting surface is rotatably connected with one end of the second linkage (2); the sliding track (6) is embedded in a bottom plate (7) of a prefabricated house to be folded in operation, the sliding rod (5) is arranged in the sliding track (6) and slides along the sliding track (6); the other end of the second linkage (2) is rotatably connected with one end of the sliding rod (5); the other end of the sliding rod (5) is rotatably connected with one end of the first linkage (1); the other end of the first linkage (1) is rotatably connected with a middle part of the third linkage (4); the other end of the third linkage (4) is rotatably connected with the bottom plate (7) of the prefabricated house to be folded in operation; a bolt hole (3-1) is arranged on the first connecting surface of the connecting plate (3) for fixedly connecting with the side plate (8) of the prefabricated house to be folded by bolts; a first bolt column (3-2) is arranged at the first end of the second connecting surface, and a first bolt hole (3-3) is arranged at the second end of the second connecting surface; the sliding track (6) is a rectangular groove, and a long strip-shaped raised track (6-1) is arranged on the middle part of the upper and lower inner surfaces in the groove; the sliding rod (5) comprises a sliding frame (5-1) and a sliding block (5-2); the two ends of the sliding frame (5-1) are provided with first circular through holes (5-1a), the sliding block (5-2) is embedded in the two ends of the sliding frame (5-1) and is provided with second circular through holes (5-2b) matched with the first circular through holes (5-1a); the upper and lower ends of the sliding block (5-2) are respectively provided with a sliding groove (5-2a) matched with the raised track (6-1) in the sliding track (6); an electric cylinder (9) is used to apply an external force required for folding the plate, and the electric cylinder (9) is inserted into the reserved holes in the bottom plate (7) and the side plate (8) through a pin shaft.

2. The combination linkage for the folding of a structure according to claim 1, characterized in that: a second bolt column (2-1) is arranged at one end of the second linkage (2) and is inserted into the first circular through hole (5-1a) and the second circular through hole (5-2b) at one end of the sliding rod (5); the other end of the second linkage (2) is provided with a third bolt column (2-2) in the opposite direction and is inserted into the first bolt hole (3-3).

3. The combination linkage for the folding of a structure according to claim 2, characterized in that: a fourth bolt column (4-1) is arranged at one end of the third linkage (4) and is inserted into the reserved hole in the bottom plate (7) of the prefabricated house to be folded; a fifth bolt column (4-3) is arranged at the middle part of the third linkage (4); a second bolt hole (4-2) is arranged at the other end of the third linkage (4) and is connected with the first bolt column (3-2).

4. The combination linkage for the folding of a structure according to claim 3, characterized in that: One end of the first connecting rod (1) is provided with a sixth bolt column (1-1) inserted into a first circular through hole (5-1a) and a second circular through hole (5-2b) at the other end of the slide rod (5); the first connecting rod (1) is provided with a third bolt hole (1-2) connected with the fifth bolt column (4-3).

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