Multi-link pulley linkage kit and folding, self-locking method

Abstract

The application discloses a multi-connecting-rod pulley linkage kit and a folding and unfolding and self-locking method, which comprises a sliding connecting assembly, a self-locking positioning assembly and an angle support connecting rod assembly. The sliding connecting assembly is slidably installed on a support beam by means of the inherent design of the side edge of a roof support plate, thereby eliminating the adaptive modification of the traditional roof support plate and fully guaranteeing the quick integration of the kit and the traditional roof support plate. In addition, the angle support connecting rod assembly is designed to replace the traditional pin shaft hinging scheme and is formed by two groups of double connecting rod mechanisms, so that the overall structural strength and the anti-seismic performance of the angle support connecting rod assembly are doubled. Under the synergistic action of the angle support connecting rod assembly and the sliding connecting assembly, the angle support connecting rod assembly effectively eliminates the shaking and deviation phenomenon between the box house beam columns during the folding and unfolding process, guarantees the synchronism and consistency of the structure movement, greatly enhances the dynamic mechanical stability and structural integrity of the box house, and improves the safety of the folding operation and the user experience.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of foldable box houses, and more particularly relates to a multi-link pulley linkage kit and a folding, unfolding and self-locking method. BACKGROUND

[0002] Foldable box houses have outstanding advantages such as easy transportation, quick assembly, high space utilization, etc., and are widely used in temporary buildings, warehousing, office work, emergency resettlement and other scenarios. At the same time, the box body is provided with standardized fork grooves on the four sides, which facilitates the completion of moving operations by a trailer or manual cooperation, and has high transportation flexibility. Compared with traditional temporary building forms, foldable box houses exhibit obvious technical and economic advantages: significantly compressed construction period, reduced time cost; good reusability, effective resource saving; highly simplified assembly process, reduced labor input, improved overall construction efficiency and user experience, and high practicality and flexibility. However, due to the large size and weight of the box house, the folding and unfolding process is still inconvenient, and therefore further optimization of the structure of the foldable box house and the construction method thereof is of great significance from the economic and efficiency aspects.

[0003] The existing patent application CN116163423A (publication number) discloses a foldable box house, which comprises a top frame plate, a bottom frame plate, a pair of long side plates and a pair of end plates. The pair of end plates are symmetrically arranged on the front and rear short sides of the bottom frame plate, and the bottom portions of the two sides of the end plate are respectively provided with a connecting plate piece which is vertically fixedly arranged on the bottom frame plate. The bottom end of the end plate is rotatably arranged on the connecting plate piece, and the top portion of the connecting plate piece is provided with a support plate. In the folded state, the support plate is in contact with the top frame plate. A pair of connecting rods are arranged between the top frame plate and the end plate, and the pair of connecting rods are arranged on the two sides of the end plate. One end of the connecting rod is rotatably connected with the top frame plate, and the other end of the connecting rod is provided with a sliding groove. A sliding rod is slidably arranged in the sliding groove, and the sliding rod is fixedly connected with the side wall of the end plate adjacent thereto. In addition, the existing patent application CN110067310A (publication number) discloses a foldable container house convenient to install, which comprises a bottom plate, a lower side plate, an upper side plate, a front panel, a rear panel and a top plate. The bottom plate is provided with a first recess, and the front panel and the rear panel are accommodated in the first recess in the folded state. The front panel and the rear panel are respectively provided with a second recess and a third recess. A top pushing cylinder is installed in the second recess, and the top pushing cylinder is used to push the top plate so as to incline the lower side plate by a certain angle. A side pushing cylinder is hingedly connected in the third recess, and the side pushing cylinder is used to push the inclined lower side plate and push it to the angle perpendicular to the bottom plate.

[0004] The above patent technologies all adopt folding technology, and to some extent, the box house folding effect is realized. However, there are still the following technical problems or improvement directions: (1) The "Z" folding box house sliding rail type folding mechanism is unstable and easy to shake during movement, which greatly reduces the structural life and folding effect stability, and the mechanism is not modular, which is not conducive to the development of box house modular assembly system. It is urgent to break through the technical limitations through structural innovation and material process optimization to promote its development to high performance and wide adaptation to meet the diversified market demand. (2) The box house folding and unfolding process involves sliding, but the scheme does not consider the possible empty sliding phenomenon, which will lead to asymmetric sliding increment on both sides, further causing the technical problems of jamming or poor folding effect. SUMMARY

[0005] In view of the above defects or improvement needs of the prior art, the present application provides a multi-link pulley linkage kit, comprising a sliding connection assembly, a self-locking positioning assembly and an angle support link assembly. The sliding connection assembly is slidingly installed on the support beam by ingeniously using the inherent design of the roof support plate side edge, i.e. the limiting rod, the support beam and the connecting beam installation base, which eliminates the need for adaptive modification of the traditional roof support plate and fully guarantees the rapid integration of the kit with the traditional roof support plate. By designing the angle support link assembly to replace the traditional pin shaft hinge scheme, the motion freedom degree of the variable angle support process between the left and right house plates and the bottom plate is increased, greatly reducing the collision rate and wear rate between the plates. At the same time, the four-link angle support link assembly is formed by combining two groups of double-link mechanisms, which retains the high freedom degree support characteristic of the link while doubling the overall structural strength and seismic performance of the angle support link assembly, ensuring the motion reliability and stability between the box house plates.

[0006] In order to achieve the above purpose, according to the first aspect of the present application, a multi-link pulley linkage kit comprises:

[0007] The sliding connection assembly is used for slidingly connecting the lateral house wall and the roof support plate, and comprises a wall fixed part fixedly connected with the lateral house wall, a sliding connection assembly slidingly connected with the roof support plate, and an intermediate link assembly connected between the wall fixed part and the sliding connection assembly;

[0008] The angle support link assembly is used for rotatingly connecting the lateral house wall and the house bottom foundation, and comprises a wall hinge block fixedly connected with the lateral house wall and the house bottom foundation, and a multi-link mechanism hingedly connected with the wall hinge block;

[0009] The self-locking positioning assembly is connected to the sliding connection assembly, and is used for auxiliary locking in the fully unfolded state of the box house. The self-locking positioning assembly comprises a locking swing lever arranged in the inner cavity of the beam mounting base, a self-locking plug rod arranged below the front end of the locking swing lever and slidingly connected in the inner cavity of the beam mounting base, an end clamping block arranged at the upper end of the self-locking plug rod, a plug rod rebound spring arranged below the end clamping block and the bottom surface of the inner cavity of the beam mounting base, and a trigger transmission assembly used for converting and transmitting the movement of the support limiting wheel into the pressing movement of the locking swing lever.

[0010] In the folding and unfolding process of the box house, the sliding connection assembly and the angle support connecting rod assembly are cooperatively linked to realize the lateral house wall sliding folding and unfolding action. When the box house is fully unfolded, the angle support connecting rod assembly, the sliding connection assembly and the self-locking positioning assembly are cooperatively linked to realize the state auxiliary locking.

[0011] Preferably, the angle support connecting rod assembly mainly comprises a driving limiting rocker, a driving interconnection rocker, a passive interconnection swing lever and a passive limiting swing lever. The driving limiting rocker is hingedly connected with the passive interconnection swing lever, the driving interconnection rocker is hingedly connected with the passive limiting swing lever, and the driving interconnection rocker and the passive interconnection swing lever are hingedly connected.

[0012] The intermediate connecting rod assembly comprises a self-adapting connecting rod hingedly connected with the wall body fixing part and a sliding cable connecting rod hingedly connected with the end of the self-adapting connecting rod. The sliding cable connecting rod is fixedly connected with the sliding connection assembly.

[0013] Preferably, the sliding connection assembly further comprises:

[0014] The sliding connection assembly comprises a first support shaft and a second support shaft which are perpendicular to the side direction of the sliding cable connecting rod and are fixedly connected with the sliding cable connecting rod, a first positioning sleeve and a fixed distance locking slide cylinder which are sleeved on the first support shaft, and a second positioning sleeve and a support slide cylinder which are sleeved on the second support shaft.

[0015] The fixed distance locking slide cylinder and the support slide cylinder are tightly attached to the upper and lower sides of the support beam below the roof support plate.

[0016] The wall body fixing part is a fixed wall block, and the cross section is square and the two ends are circular arc structures.

[0017] Preferably, the sliding connection assembly further comprises:

[0018] The support limiting wheel is used for sliding support and limiting the side sliding of the double slide cylinders, and is rotationally connected to the end of the first support shaft.

[0019] Preferably, the surface of the support limiting wheel is provided with a rubber layer.

[0020] Preferably, the wall connecting hinge block is provided with a margin sliding groove, and the front ends of the active limiting rocker, the active interconnection rocker, the passive interconnection swing lever and the passive limiting swing lever are slidably connected with the margin sliding groove.

[0021] Preferably, the wall body fixing part is made of high-strength alloy steel; when the sliding connecting assembly drives the lateral house wall to slide and expand, the gusset link assembly limits the angles of the left and right house plates and the house bottom foundation, so as to realize the folding and expanding linkage of the sliding connecting assembly and the gusset link assembly.

[0022] Preferably, the self-locking positioning assembly comprises:

[0023] A slot is formed on the upper surface of the lateral house wall, and the slot is formed in position with the self-locking insertion lever;

[0024] The trigger transmission assembly comprises a horizontal trigger push rod slidably connected with the inner cavity of the connecting beam mounting base, a rack transmission part arranged on the lower surface of the horizontal trigger push rod, a transmission gear in meshing transmission with the rack transmission part, a push block arranged on the upper surface of the horizontal trigger push rod, and a push rod return spring mounted between the push block and the side wall of the inner cavity of the connecting beam mounting base.

[0025] The transmission gear is coaxially and fixedly connected with the rear end of the locking swing lever.

[0026] According to the second aspect of the present application, a folding and expanding method of a multi-link pulley linkage kit is applied to a multi-link pulley linkage kit, and comprises the following steps:

[0027] S100: the overall assembly of the sliding connecting assembly, the gusset link assembly and the self-locking positioning assembly with the house plate is completed;

[0028] S200: the roof support plate is hoisted by a crane, and then the lateral house wall and the front and rear house walls are gradually expanded with the aid of external force; in the process, the sliding connecting assembly and the gusset link assembly move cooperatively.

[0029] In the process of expanding the box house, the fixed wall block sequentially transmits the expanding movement of the lateral house wall to the sliding connecting assembly by the self-adaptive link and the slide cable link; in the sliding connecting assembly, the support slide cylinder and the fixed-distance locking slide cylinder clamp the upper and lower sides of the beam body below the roof support plate, and the supporting limiting wheel rolls on the roof support plate beam, so that the sliding connecting assembly stably slides along the beam body under the action of the slide cable link power transmission, and the sliding expanding action is realized.

[0030] In the process of unfolding the box house, the left and right house plates and the house bottom base produce an angle change, so that the power is transmitted from the connecting wall hinge block to the active limiting rocker, the active interconnection rocker, the passive interconnection swing lever and the passive limiting swing lever, and the four-link linkage realizes self-adaptive adjustment of the angle; and the margin sliding groove provided in the connecting wall hinge block allows the wall column to have a certain tolerance space in the folding process, so as to avoid the problems of jamming or stress concentration caused by manufacturing errors or assembly deviations;

[0031] S300: When the lateral house wall is about to reach the fully unfolded state, the self-locking positioning assembly is triggered to complete the auxiliary locking of the fully unfolded state of the lateral house wall;

[0032] S400: When the box house is folded, the roof support plate is lifted, and the lateral house wall and the front and rear house walls can be folded inward with the aid of external force.

[0033] An auxiliary self-locking method of a multi-link pulley linkage kit is applied to a folding and unfolding method of a multi-link pulley linkage kit, and the S300 further includes the following steps:

[0034] S301: In the process of outward unfolding, the support limiting wheel pushes the rack transmission part outward, so that the locking swing lever is swung under the transmission of the transmission gear and the rack transmission part;

[0035] S302: When the locking swing lever swings downward to a certain angle, the front end of the locking swing lever contacts the end block, pushes the self-locking plug rod downward, and inserts into the slot provided on the upper surface of the lateral house wall, so as to realize the auxiliary locking effect;

[0036] In the folding and unfolding process of the box house, the sliding connection assembly and the angle support linkage assembly cooperate and link with each other to jointly drive and constrain the lateral house wall to perform sliding movement, so as to realize stable unfolding and folding of the wall plate.

[0037] When the box house reaches the fully unfolded state, the angle support linkage assembly, the sliding connection assembly and the self-locking positioning assembly cooperate and link with each other: the angle support linkage assembly and the sliding connection assembly move to the predetermined position, and the self-locking positioning assembly provides a locking condition; the self-locking positioning assembly responds to this linkage state and controlledly performs a locking action to form an interlocking or limiting relationship with the angle support linkage assembly and / or the sliding connection assembly, so as to jointly realize reliable auxiliary locking of the unfolded state.

[0038] Overall, compared with the prior art, the above technical solutions conceived by the present application can achieve the following beneficial effects:

[0039] 1. A multi-link pulley linkage kit of the present application ingeniously uses the inherent design of the side edge of the roof support plate, i.e. the limiting rod, support beam and connecting beam mounting base, to slide the sliding connection assembly on the support beam, eliminating the need for adaptive modification of the traditional roof support plate and fully ensuring the rapid integration of the kit with the traditional roof support plate.

[0040] 2. A multi-link pulley linkage kit of the present application uses an angle brace connecting rod assembly to replace the traditional pin shaft hinge. This design significantly improves the degree of freedom of movement during the variable angle support between the left and right roof plates and the bottom plate, effectively reducing the incidence and wear rate of plate collisions. In terms of structural design, the angle brace connecting rod assembly innovatively uses two sets of double connecting rod mechanisms in combination. This special configuration significantly improves the bending strength and seismic performance of the overall structure while maintaining the original high degree of freedom support characteristics of the connecting rod mechanism, thereby effectively ensuring the reliability and stability of the relative movement between the box house plates. It is worth noting that this design also systematically studies the locking mechanism of the box house in the fully expanded state. This locking scheme significantly improves the box house deployment efficiency while reducing the safety hazards during deployment. In addition, this structure innovatively realizes the mechanical limiting function of the folding angle, effectively preventing the folding deformation of the wall column components beyond the design allowable range, providing an important guarantee for the overall structural safety.

[0041] 3. A multi-link pulley linkage kit of the present application, which exhibits significant technical advantages compared to the traditional single-axis structure through the design of symmetrically clamping two rollers on the upper and lower sides of the support beam. This design effectively suppresses the tendency of the rollers to detach from the surface of the support beam, significantly reducing the high-frequency collision load at the contact interface, thereby significantly improving the structural durability and operational safety. At the same time, this configuration ensures the displacement synchronization of the left and right box plates during folding and unfolding by eliminating the roller sliding phenomenon, optimizing the stability of the overall folding and unfolding motion. This innovative constraint mechanism design not only improves the service life of the components but also effectively enhances the reliability and operational stability of the structural system.

[0042] 4. A multi-link pulley linkage kit of the present application, which adds a support limiting wheel at the end of the first support shaft. It contacts and supports the sliding surface of the beam structure below the roof support plate, ensuring the stability of the overall sliding process. At the same time, this structure avoids the potential risk of the double roller structure sliding out from the side of the support beam, causing the whole sliding connection assembly to derail.

[0043] 5. The multi-link pulley linkage kit of the present application optimizes the structure of the supporting limiting wheel, adopts a rubber buffer surface design, which improves the damping performance of the lifting system and cooperates with the aforementioned double sliding cylinder mechanism to ensure the real-time symmetry of the sliding displacement of the left and right box plates during folding and unfolding. This composite buffer-guide mechanism design not only improves the dynamic response characteristics of the system, but also effectively improves the motion coordination and stability of the overall structure.

[0044] 6. The multi-link pulley linkage kit of the present application considers the single motion trajectory of the gusset link assembly, which provides a certain tolerance space for the wall during folding, thereby avoiding the problems of jamming or stress concentration caused by manufacturing errors or assembly deviations. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 The overall structure of the multi-link pulley linkage kit of the present application is shown in the figure.

[0046] Figure 2 The structure of the multi-link pulley linkage kit of the present application in the folded state is shown in the figure.

[0047] Figure 3 The roof support plate structure of the multi-link pulley linkage kit of the present application is shown in the figure.

[0048] Figure 4 The sliding link assembly part structure of the multi-link pulley linkage kit of the present application is shown in the figure.

[0049] Figure 5 The three-dimensional structure of the sliding link assembly installation state of the multi-link pulley linkage kit of the present application is shown in the figure.

[0050] Figure 6 The planar structure of the sliding link assembly installation state of the multi-link pulley linkage kit of the present application is shown in the figure.

[0051] Figure 7 The structure of the sliding link assembly of the multi-link pulley linkage kit of the present application is shown in the figure.

[0052] Figure 8 The gusset link assembly part structure of the multi-link pulley linkage kit of the present application is shown in the figure.

[0053] Figure 9 The application state diagram of the self-locking positioning assembly of the multi-link pulley linkage kit of the present application is shown in the figure.

[0054] Figure 10 The structure diagram of the self-locking positioning assembly of the multi-link pulley linkage kit of the present application is shown in the figure.

[0055] In all the drawings, the same reference signs refer to the same technical features, specifically: 100 - house bottom foundation, 110 - lateral house wall, 130 - house roof support plate, 140 - slide connection assembly, 141 - fixed connection wall block, 142 - self-adaptive connecting rod, 143 - slide cable connecting rod, 144 - support slide cylinder, 145 - fixed distance locking slide cylinder, 147 - connecting beam mounting base, 148 - limiting rod, 149 - support beam, 1410 - first positioning sleeve, 1411 - support limiting wheel, 1412 - first support shaft, 1413 - second support shaft, 1414 - second positioning sleeve, 150 - angle support connecting rod assembly, 151 - wall connecting hinge block, 1510 - margin sliding groove, 152 - active limiting rocker, 153 - active interconnection rocker, 154 - passive interconnection swing lever, 155 - passive limiting swing lever, 160 - self-locking positioning assembly, 161 - horizontal trigger push rod, 162 - rack transmission part, 163 - transmission gear, 164 - locking swing lever, 165 - self-locking insertion rod, 166 - insertion rod rebound spring, 167 - end clamping block, 168 - jacking block, 169 - push rod return spring, 1610 - insertion slot. DETAILED DESCRIPTION

[0056] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0057] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0058] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. In addition, the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0060] As shown in the embodiment of the present application, the multi-link pulley linkage assembly comprises: Figures 1-10

[0061] The sliding connection assembly 140 is used to slidingly connect the lateral house wall 110 and the roof support plate 130, which comprises a wall fixing part fixedly connected with the lateral house wall 110, a sliding connection assembly slidingly connected with the roof support plate 130, and an intermediate link assembly connected between the wall fixing part and the sliding connection assembly;

[0062] The self-locking positioning assembly 160 is used to assist the state locking when the box house is fully unfolded;

[0063] The gusset link assembly 150 is used to rotatably connect the lateral house wall 110 and the house bottom foundation 100, which comprises a wall connecting hinge block 151 fixedly connected with the lateral house wall 110 and the house bottom foundation 100, a driving limit rocker 152 hingedly connected with the wall connecting hinge block 151, a driving interconnection rocker 153, a passive interconnection swing lever 154, and a passive limit swing lever 155, the ends of the driving limit rocker 152 and the passive interconnection swing lever 154 are hingedly connected, the ends of the driving interconnection rocker 153 and the passive limit swing lever 155 are hingedly connected, and the driving interconnection rocker 153 and the passive interconnection swing lever 154 are hingedly connected between the rods;

[0064] The wall fixing part is a fixed wall block 141, which is long-shaped and has circular arc structures at both ends;

[0065] The intermediate link assembly comprises a self-adaptive link 142 hingedly connected with the fixed wall block 141 and a slide cable link 143 hingedly connected with the end of the self-adaptive link 142, and the slide cable link 143 is fixedly connected with the sliding connection assembly.

[0066] In the embodiment of the present application, the sliding connection assembly is slidingly installed on the support beam 149 by means of the inherent design of the side edge of the roof support plate, i.e. the limit rod 148, the support beam 149 and the connecting beam installation base 147, which eliminates the need for adaptive modification of the traditional roof support plate and fully guarantees the rapid integration of the assembly with the traditional roof support plate.

[0067] ​Furthermore, by using a corner brace linkage assembly instead of the traditional pin-hinged connection, the design increases the degree of freedom of movement during the variable angle support process between the left and right roof panels and the floor panel, significantly reducing the collision rate and wear rate between panels. Simultaneously, this four-bar corner brace linkage assembly is formed by combining two sets of double-link mechanisms, retaining the high degree of freedom support characteristics of the linkages while doubling the overall structural strength and seismic performance of the corner brace linkage assembly, ensuring the reliability and stability of the movement between the container house panels. In addition, this invention further considers a locking scheme for the fully deployed state of the container house, further improving the deployment efficiency and safety. Moreover, this solution limits the folding range, preventing excessive folding of the walls and columns that could affect structural safety.

[0068] like Figures 5-7 As shown, in this embodiment of the invention, the sliding connection component includes:

[0069] A first support shaft 1412 and a second support shaft 1413 are perpendicular to the side direction of the cable link 143 and fixedly connected to the cable link 143; a first positioning sleeve 1410 and a fixed-distance locking slide cylinder 145 are sleeved on the first support shaft 1412; and a second positioning sleeve 1414 and a support slide cylinder 144 are sleeved on the second support shaft 1413.

[0070] The fixed-distance locking slide cylinder 145 and the supporting slide cylinder 144 are closely attached to the upper and lower sides of the supporting beam 149 below the roof support plate 130.

[0071] In this embodiment of the invention, a double-sliding cylinder sliding connection design is adopted, and the two sliding cylinders are clamped on the upper and lower sides of the support beam 149. Compared with the single-axis solution, this effectively suppresses the sliding cylinders from detaching from the surface of the support beam 149. On the one hand, it greatly reduces the high-frequency collision between the sliding cylinders and the surface of the support beam 149, improving the service life and safety of the structure. On the other hand, it eliminates the phenomenon of empty sliding of the sliding cylinders, ensuring the real-time symmetry of the sliding amount of the left and right box panels during the folding and unfolding process to a certain extent, and optimizing the stability of the box house folding and unfolding process.

[0072] Furthermore, in the sliding assembly 140, the length setting of the adaptive link 142 can limit the folding angle and movement trajectory of the container, preventing instability during folding. The sliding cable link 143 mainly serves to fix the first support shaft 1412 and the second support shaft 1413 and lock the distance between the two shafts. In addition, the first positioning sleeve 1410 and the second positioning sleeve 1414 are used to limit the axial position of the support slide cylinder 144 and the spaced locking slide cylinder 145 on the support shaft, preventing the support slide cylinder 144 and the spaced locking slide cylinder 145 from lateral slippage and wear.

[0073] like Figures 5-7 As shown, in this embodiment of the invention, the sliding connection component further includes:

[0074] The support limiting wheel 1411 is used for sliding support and limiting the side sliding of the double sliding cylinder and is rotationally connected to the end of the first support shaft 1412.

[0075] In the embodiment of the present application, the support limiting wheel 1411 is additionally arranged at the end of the first support shaft 1412, which is in contact with the surface of the beam structure below the roof support plate and supports the sliding, thereby ensuring the stability of the whole sliding process. At the same time, the structure avoids the potential risk that the double sliding cylinder structure slides out of the side of the support beam 149, thereby causing the whole derailment of the sliding connection assembly.

[0076] In the embodiment of the present application, the surface of the support limiting wheel 1411 is provided with a rubber layer.

[0077] In the embodiment of the present application, the surface of the support limiting wheel 1411 is designed as a rubber buffer structure, which not only improves the shock absorption performance of the system, but also ensures the real-time symmetry of the sliding amount of the left and right box plates during the folding and unfolding process of the double sliding cylinder structure.

[0078] As shown in Figure 10 In the embodiment of the present application, the wall connecting hinge block 151 is provided with a margin sliding groove 1510, and the front ends of the active limiting rocker 152, the active interconnection rocker 153, the passive interconnection rocker 154 and the passive limiting rocker 155 are all in sliding connection with the margin sliding groove 1510.

[0079] In the embodiment of the present application, the motion trajectory of the angle support connecting rod assembly is single, so that the wall has a certain tolerance space during folding, thereby avoiding the problems of jamming or stress concentration caused by manufacturing errors or assembly deviations.

[0080] In the embodiment of the present application, the material of the fixed wall block 141 is high-strength alloy steel.

[0081] As shown in Figure 1 , Figure 9 and Figure 10 In the embodiment of the present application, the self-locking positioning assembly 160 comprises:

[0082] The lock positioning rocker 164 is arranged in the inner cavity of the connecting beam mounting base 147, the self-locking plug rod 165 is arranged below the front end of the lock positioning rocker 164 and is in sliding connection with the inner cavity of the connecting beam mounting base 147, the end clamping block 167 is arranged at the upper end of the self-locking plug rod 165, and the plug rod rebound spring 166 is arranged below the end clamping block 167 and the bottom surface of the inner cavity of the connecting beam mounting base 147; the insertion groove 1610 is arranged on the upper surface of the lateral house wall 110, and the insertion groove 1610 is arranged in position with the self-locking plug rod 165.

[0083] The trigger transmission assembly is used for converting and transmitting the movement of the support limiting wheel 1411 into the pressing movement of the lock positioning rocker 164.

[0084] As Figure 1 , Figure 9 and Figure 10 shown, in the embodiments of the present application, the trigger transmission assembly comprises:

[0085] The horizontal trigger push rod 161 is horizontally and slidingly connected to the inner cavity of the connecting beam mounting base 147, the rack transmission part 162 is arranged on the lower surface of the horizontal trigger push rod 161, the transmission gear 163 is in meshing transmission with the rack transmission part 162, the push block 168 is arranged on the upper surface of the horizontal trigger push rod 161, and the push rod return spring 169 is mounted between the push block 168 and the side wall of the inner cavity of the connecting beam mounting base 147;

[0086] The transmission gear 163 is coaxially and fixedly connected to the rear end of the locking swing rod 164;

[0087] The working principle of the present application is as follows:

[0088] S100: The overall assembly of the sliding connection assembly 140, the angle support connecting rod assembly 150 and the self-locking positioning assembly 160 is completed with the house plate in the same box;

[0089] S200: A crane is used to hoist the roof support plate, and then the lateral house wall 110 and the front and rear house walls are gradually unfolded with the aid of external force; in the process, the sliding connection assembly 140 and the angle support connecting rod assembly 150 move cooperatively;

[0090] In the process of unfolding the box house, the fixed wall block 141 sequentially transmits the unfolding movement of the lateral house wall to the sliding connection assembly through the self-adaptive connecting rod 142 and the sliding cable connecting rod 143; in the sliding connection assembly, the support sliding cylinder 144 and the fixed-distance locking sliding cylinder 145 clamp the upper and lower sides of the beam body below the roof support plate, and the limit wheel 1411 is supported and rolled on the roof support plate beam, so that the sliding connection assembly as a whole slides smoothly along the beam body under the action of the power transmission of the sliding cable connecting rod 143, and the sliding unfolding action is realized;

[0091] In the process of unfolding the box house, the left and right house plates and the house bottom foundation produce an angle change, so that the power is transmitted from the wall connecting hinge block 151 to the active limit rocker 152, the active interconnection rocker 153, the passive interconnection swing rod 154 and the passive limit swing rod 155, and the four-link linkage realizes the self-adaptive adjustment of the angle; and the margin sliding groove 1510 provided in the wall connecting hinge block 151 provides a certain tolerance space for the wall column in the folding process, so as to avoid the problems of jamming or stress concentration caused by manufacturing errors or assembly deviations;

[0092] S300: When the lateral house wall 110 is about to reach the completely unfolded state, the self-locking positioning assembly 160 is triggered to complete the auxiliary locking when the lateral house wall 110 is completely unfolded.

[0093] S400: When the box house is folded, the roof support plate is lifted, and the lateral house wall 110 and the front and rear house walls are folded inward with the aid of external force.

[0094] In the embodiment of the application, the S300 further comprises:

[0095] S301: During the outward expansion of the support limiting wheel 1411, the rack transmission part 162 is pushed outward, so that the lock position swing lever 164 swings under the transmission of the transmission gear 163 and the rack transmission part 162;

[0096] S302: When the lock position swing lever 164 swings downward to a certain angle, the front end of the lock position swing lever 164 contacts the end block 167, pushes the self-locking plug rod 165 downward, and inserts into the slot 1610 on the upper surface of the lateral house wall 110, thereby achieving the auxiliary locking effect.

[0097] A box house system based on a multi-link pulley linkage folding and unfolding kit, comprising:

[0098] The box house basic assembly comprises a house bottom foundation 100, a lateral house wall 110, front and rear house walls, and a roof support plate 130;

[0099] The sliding connection assembly 140 is used to slidingly connect the lateral house wall 110 and the roof support plate 130;

[0100] The angle brace link assembly 150 is used to rotationally connect the lateral house wall 110 and the house bottom foundation 100;

[0101] The self-locking positioning assembly 160 is connected to the sliding connection assembly 140, and is used to achieve auxiliary locking when the box house is completely unfolded;

[0102] During the folding and unfolding of the box house, the cooperation of the sliding connection assembly 140 and the angle brace link assembly 150 realizes the sliding and folding of the lateral house wall 110; and the cooperation of the sliding connection assembly 140 and the angle brace link assembly 150 realizes the sliding and folding of the lateral house wall 110; when the box house is completely unfolded, the cooperation of the angle brace link assembly 150, the sliding connection assembly 140, and the self-locking positioning assembly 160 realizes the auxiliary locking of the state.

[0103] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principle of the present application, a number of improvements and variations can be made, which should be regarded as the protection scope of the present application.

Claims

1. A multi-link pulley linkage kit, characterized in that, include: The sliding connection assembly (140) is used to slide the side wall (110) and the roof support plate (130). It includes a wall fixing part fixedly connected to the side wall (110), a sliding connection assembly slidably connected to the roof support plate (130), and an intermediate connecting rod assembly connected between the wall fixing part and the sliding connection assembly. The intermediate connecting rod assembly includes an adaptive connecting rod (142) hinged to the wall fixing part and a sliding cable connecting rod (143) hinged to the end of the adaptive connecting rod (142). The sliding cable connecting rod (143) is fixedly connected to the sliding connection assembly. The sliding connection assembly includes a first support shaft (1412) perpendicular to the side direction of the sliding cable connecting rod (143) and fixedly connected to the sliding cable connecting rod (143). A support limiting wheel (1411) is rotatably connected to the end of the first support shaft (1412). An angle brace linkage assembly (150) is used to rotatably connect the side wall (110) and the foundation (100). It includes a wall hinge block (151) that is fixed to both the side wall (110) and the foundation (100), and a multi-link mechanism that is hinged to the wall hinge block (151). The self-locking positioning component (160) is connected to the sliding connection component (140). The self-locking positioning component (160) is used for auxiliary locking when the container is fully deployed. It includes a locking swing rod (164) located in the inner cavity of the connecting beam mounting base (147), a self-locking insert rod (165) located below the front end of the locking swing rod (164) and slidably connected to the inner cavity of the connecting beam mounting base (147), an end block (167) located at the upper end of the self-locking insert rod (165), an insert rod return spring (166) located below the end block (167) and at the bottom surface of the inner cavity of the connecting beam mounting base (147), and a trigger transmission component for converting the movement of the support limiting wheel (1411) into the pressing of the locking swing rod (164). During the folding and unfolding process of the container house, the sliding connection assembly (140) and the corner brace connection assembly (150) work together to achieve the sliding and unfolding action of the side wall (110); when the container house is fully unfolded, the corner brace connection assembly (150), the sliding connection assembly (140) and the self-locking assembly (160) work together to achieve state-assisted locking.

2. The multi-link pulley linkage kit according to claim 1, characterized in that: The angle brace linkage assembly (150) mainly includes an active limiting rocker (152), an active interconnecting rocker (153), a passive interconnecting swing rod (154), and a passive limiting swing rod (155). The active limiting rocker (152) and the passive interconnecting swing rod (154) are hinged at their ends, the active interconnecting rocker (153) and the passive limiting swing rod (155) are hinged at their ends, and the active interconnecting rocker (153) and the passive interconnecting swing rod (154) are hinged together.

3. The multi-link pulley linkage kit according to claim 2, characterized in that, The sliding assembly (140) further includes: The sliding connection assembly includes a second support shaft (1413) perpendicular to the side direction of the cable link (143) and fixedly connected to the cable link (143), a first positioning sleeve (1410) and a fixed-distance locking slide (145) sleeved on the first support shaft (1412), and a second positioning sleeve (1414) and a support slide (144) sleeved on the second support shaft (1413). The fixed-distance locking slide cylinder (145) and the supporting slide cylinder (144) are closely attached to the upper and lower sides of the supporting beam (149) below the roof support plate (130); The wall fixing part is a fixed wall block (141), with a square cross-section and rounded ends.

4. A multi-link pulley linkage kit according to claim 3, characterized in that, The support limiting wheel (1411) is used for sliding support and limiting the side sliding of the double slide cylinder.

5. A multi-link pulley linkage kit according to claim 4, characterized in that, The surface of the support limiting wheel (1411) is provided with a rubber layer.

6. A multi-link pulley linkage kit according to claim 5, characterized in that, The wall-connecting hinge block (151) is provided with a margin sliding groove (1510), and the front ends of the active limiting rocker (152), the active interconnecting rocker (153), the passive interconnecting rocker (154) and the passive limiting rocker (155) are all slidably connected to the margin sliding groove (1510).

7. A multi-link pulley linkage kit according to claim 1, characterized in that, The wall fixing part is made of high-strength alloy steel. When the sliding connection assembly (140) drives the side wall (110) to slide and unfold, the corner brace connection assembly (150) limits the angle between the left and right room panels and the foundation of the room, thereby realizing the folding and unfolding linkage between the sliding connection assembly (140) and the corner brace connection assembly (150).

8. A multi-link pulley linkage kit according to claim 1, characterized in that, The self-locking component (160) includes: A slot (1610) is provided on the upper surface of the side wall (110), and the slot (1610) is aligned with the self-locking rod (165); The trigger transmission assembly includes: a horizontal trigger push rod (161) that is horizontally slidably connected to the inner cavity of the connecting beam mounting base (147); a rack transmission part (162) disposed on the lower surface of the horizontal trigger push rod (161); a transmission gear (163) that maintains meshing transmission with the rack transmission part (162); a push block (168) disposed on the upper surface of the horizontal trigger push rod (161); and a push rod return spring (169) installed between the push block (168) and the side wall of the inner cavity of the connecting beam mounting base (147). The transmission gear (163) and the rear end of the locking lever (164) are coaxially and fixedly connected.

9. A method for unfolding a multi-link pulley linkage assembly, applied to the multi-link pulley linkage assembly according to any one of claims 1 to 8, comprising the following steps: S100: The sliding connection assembly (140), the corner brace connection assembly (150), and the self-locking assembly (160) are assembled together with the house panel to complete the overall assembly; S200: A crane is used to lift the roof support plate, and then the lateral wall (110) and the front and rear walls are gradually unfolded with the help of external force; during the process, the sliding connection assembly (140) and the corner brace connection assembly (150) move together; in, During the deployment of the container house, the fixed wall block (141) transmits the lateral wall deployment movement to the sliding connection assembly (140) in sequence through the adaptive link (142) and the sliding cable link (143). In the sliding connection assembly, since the supporting slide cylinder (144) and the fixed-distance locking slide cylinder (145) clamp the upper and lower sides of the beam below the roof support plate, and the supporting limit wheel (1411) rolls on the support beam of the roof support plate, the sliding connection assembly will slide smoothly along the beam under the power transmission of the sliding cable link (143), thus realizing the sliding deployment action. During the unfolding of the container house, the angle between the left and right house panels and the foundation of the house changes. As a result, the power is transmitted from the wall hinge block (151) to the active limiting rocker (152), the active interconnecting rocker (153), the passive interconnecting swing rod (154), and the passive limiting swing rod (155). The four rods work together to achieve adaptive angle adjustment. In addition, the margin sliding groove (1510) provided in the wall hinge block (151) gives the wall column a certain tolerance space during the folding process, thereby avoiding jamming or stress concentration caused by manufacturing errors or assembly deviations. S300: When the lateral wall (110) is about to reach the fully extended state, the self-locking component (160) is triggered to complete the auxiliary locking when the lateral wall (110) is in the fully extended state; S400: When folding up the container, lift the roof support plate and use external force to assist the side walls (110) and front and rear walls to fold inward.

10. An auxiliary self-locking method for a multi-link pulley linkage assembly, applied to the unfolding method of the multi-link pulley linkage assembly as described in claim 9, characterized in that, The S300 further includes the following steps: S301: During the outward unfolding process, the support limiting wheel (1411) pushes the rack transmission part (162) outward, thereby causing the locking rocker arm (164) to swing under the transmission action of the transmission gear (163) and the rack transmission part (162). S302: When the locking lever (164) swings down to a certain angle, the front end of the locking lever (164) contacts the end block (167), and pushes the self-locking rod (165) down and inserts it into the slot (1610) on the upper surface of the side wall (110), thereby achieving the auxiliary locking effect; During the unfolding and folding of the container house, the sliding connection assembly (140) and the corner brace connection assembly (150) cooperate and work together to drive and constrain the lateral wall (110) to perform sliding motion, thereby achieving the smooth unfolding and folding of the wall panel; When the container reaches its fully deployed state, the corner brace linkage assembly (150), the sliding linkage assembly (140), and the self-locking assembly (160) work together in a coordinated manner: the corner brace linkage assembly (150) and the sliding linkage assembly (140) move to a predetermined position, and the self-locking assembly (160) provides a locking condition; the self-locking assembly (160) responds to this coordinated state and performs a locking action in a controlled manner, forming an interlock or limiting relationship with the corner brace linkage assembly (150) and / or the sliding linkage assembly (140), thereby jointly achieving reliable auxiliary locking in the deployed state.

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