Heavy load transport device and connection structure

Abstract

The present application relates to a kind of heavy load transport device and connecting structure.The connecting structure includes sleeve mechanism and ejector rod mechanism.By the first connecting shaft in ejector rod mechanism along its axial direction relative to sleeve mechanism do close movement, so that the first connecting shaft gradually extends into first accommodating groove, until the outer circumferential surface of clamping part and the locking portion of locking module abut, to push the locking portion along the radial direction of the first connecting shaft moves.As the first connecting shaft continues to do close movement, so that the locking portion can abut on the end face of clamping part away from sleeve mechanism, to block the clamping part relative to sleeve mechanism do away movement, that is, sleeve mechanism and ejector rod mechanism will not spontaneously disengage, so as to ensure the connection stability of both, in turn ensure the connecting effect of first transport unit and second transport unit.The splicing of two transport units is realized by the connecting structure, so that the transport area of transport unit increases, so as to be able to transport different models of articles, improve its use versatility.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transportation, in particular to a heavy load transportation device and a connecting structure. BACKGROUND

[0002] Transportation refers to the logistics activity of transporting goods from one place to another place by using specific equipment or tools, and it is a spatial displacement of goods for the purpose of changing the spatial position of goods in different geographical ranges.

[0003] The existing heavy load transportation device has the problem of poor universality when transporting oversized objects such as airplane wings, high-speed rail carriages and other large parts, because the space of the heavy load transportation device is limited, so that the large parts are difficult to be placed on the platform of the heavy load transportation device for transportation. SUMMARY

[0004] Therefore, it is necessary to provide a connecting structure to solve the problem of poor universality of the traditional heavy load transportation device.

[0005] A connecting structure for connecting a first transportation unit and a second transportation unit, the connecting structure comprising:

[0006] A sleeve mechanism for connecting with the first transportation unit, the sleeve mechanism being configured with a first accommodating groove and a locking module, the locking module comprising a locking portion located at least partially in the first accommodating groove;

[0007] A jacking rod mechanism for connecting with the second transportation unit, the jacking rod mechanism comprising a first connecting shaft provided with a clamping piece, the radial dimension of the first connecting shaft being smaller than the radial dimension of the clamping piece;

[0008] The first connecting shaft is configured to be operable to move towards the sleeve mechanism along the axial direction thereof, so that the clamping piece pushes the locking portion to move along the radial direction of the first connecting shaft until the locking portion abuts against the end surface of the clamping piece away from the sleeve mechanism, so as to block the clamping piece from moving away from the sleeve mechanism along the axial direction of the first connecting shaft.

[0009] In one embodiment, the radial dimension of the clamping piece gradually increases from the sleeve mechanism towards the jacking rod mechanism.

[0010] In one embodiment, the locking portion has a first inclined surface which is in sliding fit with the outer peripheral surface of the clamping piece.

[0011] In one embodiment, the locking module comprises a resilient piece, and the locking portion is connected to the resilient piece.

[0012] When the outer circumferential surface of the clamping piece abuts against the locking portion, the elastic piece is in a compressed state.

[0013] In one of the embodiments, the sleeve mechanism is configured with a second accommodating groove, and an extending direction of the second accommodating groove is parallel to a radial direction of the first connecting shaft;

[0014] The locking module comprises a second connecting shaft which is slidingly connected to the second accommodating groove, and the locking portion is arranged at an end of the second connecting shaft;

[0015] One end of the elastic piece abuts against the locking portion, and the other end abuts against the sleeve mechanism; after an external force acting on the second connecting shaft is removed, the elastic piece is used to drive the second connecting shaft to reset.

[0016] In one of the embodiments, the connecting structure further comprises an unlocking piece which is slidingly connected to the first connecting shaft; the unlocking piece comprises an unlocking section, and a radial dimension of the unlocking section gradually decreases from a direction in which the sleeve mechanism points to the ejector rod mechanism;

[0017] The unlocking piece has a locking position and an unlocking position; when the unlocking piece is in the unlocking position, the unlocking section is connected to an end surface of the clamping piece which faces away from the sleeve mechanism, and an outer circumferential surface of the unlocking piece abuts against the locking portion;

[0018] When the unlocking piece is in the locking position, the unlocking piece is spaced apart from the clamping piece along an axial direction of the first connecting shaft.

[0019] In one of the embodiments, the clamping piece is configured with a plug-in groove, and the unlocking piece further comprises a plug-in section which is connected to the unlocking section;

[0020] From the direction in which the sleeve mechanism points to the ejector rod mechanism, a dimension of the plug-in section along a horizontal direction gradually increases;

[0021] When the unlocking piece is in the unlocking position, the plug-in section is plug-in matched with the plug-in groove.

[0022] In one of the embodiments, the connecting structure further comprises an adjusting mechanism, the adjusting mechanism comprises a first guide shaft and a first connecting plate which is rotationally connected to the first guide shaft, and the first guide shaft is used to be connected with the first conveying unit; the first guide shaft extends along a vertical direction, and the first connecting plate is connected with the sleeve mechanism;

[0023] The first connecting plate is configured to be operable to rotate around the first guide shaft, thereby driving the sleeve mechanism to synchronously deflect, and the vertical direction is perpendicular to an axial direction of the first connecting shaft.

[0024] In one embodiment, the adjustment mechanism further includes a second guide shaft and a second connecting plate rotatably connected to the second guide shaft; the second guide shaft extends horizontally and intersects with the first guide shaft; the second connecting plate is connected to the first transport unit.

[0025] The second connecting plate is configured to operably rotate about the second guide shaft, causing the first transport unit to deflect synchronously.

[0026] A heavy-duty transport device includes a plurality of transport units and at least one connection structure as described above; the connection structure is used to connect adjacent transport units.

[0027] The aforementioned connection structure is used to connect the first transport unit and the second transport unit. The connection structure includes a sleeve mechanism and a push rod mechanism. The sleeve mechanism has a first receiving groove and a locking module. The push rod mechanism includes a first connecting shaft and a snap-fit ​​member disposed on the first connecting shaft. By moving the first connecting shaft closer to the sleeve mechanism along its own axial direction, the first connecting shaft gradually extends into the first receiving groove until the outer circumferential surface of the snap-fit ​​member abuts against the locking portion of the locking module, thereby pushing the locking portion to move radially along the first connecting shaft. As the first connecting shaft continues to move closer, the locking portion abuts against the end face of the snap-fit ​​member away from the sleeve mechanism, thus preventing the snap-fit ​​member from moving away from the sleeve mechanism. In other words, the sleeve mechanism and the push rod mechanism will not spontaneously disengage, thus ensuring the connection stability of the two and guaranteeing the connection effect between the first and second transport units. The connection structure enables the splicing of two transport units, increasing the transport area of ​​the transport units, thereby enabling the transport of different types of objects and improving their versatility. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of a heavy-duty transportation device provided in an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A magnified view of point A shown below;

[0030] Figure 3 This is a schematic diagram of an adjustment mechanism in a connection structure provided in an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of a connection structure provided in an embodiment of the present invention;

[0032] Figure 5 for Figure 4 An exploded view of the connection structure shown;

[0033] Figure 6 for Figure 4A schematic view of the connection structure in the first state is shown.

[0034] Figure 7 A schematic view of the connection structure in the first state is shown. Figure 4 A sectional view of the connection structure in the second state is shown.

[0035] Figure 8 A sectional view of the connection structure in the third state is shown. Figure 4 A sectional view of the connection structure in the third state is shown.

[0036] 10, heavy load transport device; 100, connection structure; 110, sleeve mechanism; 111, first accommodating groove; 112, locking module; 1121, locking part; 1122, first inclined surface; 1123, elastic piece; 1124, second connecting shaft; 113, second accommodating groove; 120, ejector rod mechanism; 121, first connecting shaft; 122, clamping piece; 123, baffle; 130, unlocking piece; 131, unlocking section; 132, plug-in section; 140, adjusting mechanism; 141, first guide shaft; 142, first connecting plate; 143, second guide shaft; 144, second connecting plate; 145, first bearing; 146, second bearing; 210, first transport unit; 220, second transport unit. DETAILED DESCRIPTION

[0037] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0039] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and are not used to denote or imply relative importance or a number of the technical features indicated. Thus, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0040] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. 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.

[0041] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0042] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not the only embodiment.

[0043] Figure 1 The structural schematic diagram of the heavy load transport device 10 provided by an embodiment of the present application is shown in the figure; Figure 4 The schematic diagram of the connecting structure 100 provided by an embodiment of the present application is shown in the figure; Figure 5 The schematic diagram of the connecting structure 100 provided by an embodiment of the present application is shown in the figure; Figure 4 The schematic diagram of the connecting structure 100 provided by an embodiment of the present application is shown in the figure; Figure 6 The schematic diagram of the connecting structure 100 provided by an embodiment of the present application is shown in the figure; Figure 4 The schematic diagram of the connecting structure 100 provided by an embodiment of the present application is shown in the figure; Figure 7 The schematic diagram of the connecting structure 100 provided by an embodiment of the present application is shown in the figure; Figure 4A sectional view of the connection structure 100 shown in the second state; Figure 8 For Figure 4 A sectional view of the connection structure 100 shown in the third state.

[0044] Referring to Figure 1 , Figures 4 to 8 As shown, the connection structure 100 provided by an embodiment of the present application is used to connect a first transport unit 210 and a second transport unit 220, and the connection structure 100 comprises a sleeve mechanism 110 and a top rod mechanism 120. The sleeve mechanism 110 is used to be connected with the first transport unit 210; the sleeve mechanism 110 is configured with a first accommodating groove 111 and a locking module 112, and the locking module 112 comprises a locking portion 1121 located at least partially in the first accommodating groove 111. The top rod mechanism 120 is used to be connected with the second transport unit 220; the top rod mechanism 120 comprises a first connecting shaft 121, and the first connecting shaft 121 is provided with a clamping piece 122, and the radial dimension of the first connecting shaft 121 is smaller than the radial dimension of the clamping piece 122. The first connecting shaft 121 is configured to be operable to make a close movement along the axial direction of itself relative to the sleeve mechanism 110, so as to push the locking portion 1121 to move along the radial direction of the first connecting shaft 121 until the locking portion 1121 abuts against the end surface of the clamping piece 122 away from the sleeve mechanism 110, so as to block the clamping piece 122 from making a far movement along the axial direction of the first connecting shaft 121 relative to the sleeve mechanism 110. The first state is a non-connected state, i.e., the sleeve mechanism 110 and the top rod mechanism 120 are not connected. The second state is a connected state, i.e., the sleeve mechanism 110 and the top rod mechanism 120 are connected, and the locking portion 1121 limits the top rod mechanism 120. The third state is an unlocked state, i.e., the top rod mechanism 120 can make a far movement relative to the sleeve mechanism 110 and be separated from the sleeve mechanism 110.

[0045] The connection structure 100 described above, by making the first connecting shaft 121 make a close movement along the axial direction of itself relative to the sleeve mechanism 110, the first connecting shaft 121 gradually extends into the first accommodating groove 111 until the outer peripheral surface of the clamping piece 122 abuts against the locking portion 1121 of the locking module 112, so as to push the locking portion 1121 to move along the radial direction of the first connecting shaft 121. With the first connecting shaft 121 continuing to make a close movement, until the locking portion 1121 abuts against the end surface of the clamping piece 122 away from the sleeve mechanism 110, so as to block the clamping piece 122 from making a far movement relative to the sleeve mechanism 110, i.e., the sleeve mechanism 110 and the top rod mechanism 120 will not spontaneously separate, thus being able to guarantee the connection stability of the two, and further guarantee the connection effect of the first transport unit 210 and the second transport unit 220. The splicing of the two transport units is realized by the connection structure 100, so that the transport area of the transport unit is increased, thus being able to transport different types of objects, and improving the use versatility.

[0046] AsFigures 5 to 8 As shown, in one embodiment, the radial dimension of the snap-fit ​​member 122 gradually increases from the sleeve mechanism 110 toward the push rod mechanism 120.

[0047] by Figure 6 Taking the view shown as an example, the radial direction of the first connecting shaft 121 is the same as the radial direction of the latching member 122, and the axial direction of the first connecting shaft 121 is the same as the axial direction of the latching member 122. The radial direction of the latching member 122 is left-right, and the axial direction of the latching member 122 is up-down. By setting the radial dimension of the latching member 122 to gradually increase, on the one hand, the approaching movement of the latching member 122 relative to the sleeve mechanism 110 can be guided, so that the clamping force applied by the latching member 122 to the locking part 1121 gradually increases; on the other hand, when the latching member 122 moves to the point where the locking part 1121 abuts against the lower end face of the latching member 122, the contact area between the latching member 122 and the locking part 1121 increases accordingly. That is, the axial blocking effect of the locking part 1121 on the latching member 122 is more stable and reliable, thereby improving the limiting effect on the latching part and improving the reliability of the connection structure 100.

[0048] Specifically, the snap-fit ​​component 122 has a conical structure. For example, the snap-fit ​​component 122 is a cone or pyramid, with its large-diameter end near the push rod mechanism 120 and its small-diameter end near the sleeve mechanism 110. Preferably, the snap-fit ​​component 122 is a conical structure. Because the outer circumferential surface of the conical structure is curved, the contact area between the locking part 1121 and the snap-fit ​​component 122 is smaller, thereby reducing its axial movement resistance and making the movement of the first connecting shaft 121 smoother. The snap-fit ​​component 122 can be integrally formed with the first connecting shaft 121, or the snap-fit ​​component 122 can be sleeved onto the first connecting shaft 121 by means of screw connection, bonding, or other methods.

[0049] In other embodiments, the latching member may also include a gradually expanding section and a constant-diameter section connected to the gradually expanding section. In the gradually expanding section, the radial dimension of the latching member gradually increases; in the constant-diameter section, the radial dimension of the latching member remains constant. In the second state, the locking portion abuts against the lower end face of the constant-diameter section.

[0050] like Figures 5 to 8 As shown, in one embodiment, the radial dimension of the latching member 122 gradually increases; the locking portion 1121 has a first inclined surface 1122, which slides in contact with the outer peripheral surface of the latching member 122. That is, the radial dimension of the locking portion 1121 gradually decreases from the sleeve mechanism 110 toward the push rod mechanism 120. With this arrangement, when the latching member 122 moves closer to the sleeve mechanism 110, it gradually abuts against the locking portion 1121, and the abutting force gradually increases, that is, the friction between the two gradually increases, reducing the resistance during the movement of the latching member 122 and improving the smoothness of operation.

[0051] As shown in the drawings, in one embodiment, the locking module 112 comprises an elastic member 1123, and the locking portion 1121 is connected to the elastic member 1123; when the outer circumferential surface of the clamping member 122 abuts against the locking portion 1121, the elastic member 1123 is in a compressed state. Figures 5 to 8

[0052] Through such a design, when the clamping member 122 abuts against the locking portion 1121, the elastic member 1123 is compressed, so that the locking portion 1121 moves along the radial direction of the first connecting shaft 121, thereby leaving space for the axial movement of the clamping member 122 and reducing the movement resistance of the clamping member 122. When the clamping member 122 moves above the locking portion 1121, the external force acting on the elastic member 1123 disappears, thereby pushing the locking portion 1121 back to abut against the lower end surface of the clamping member 122, so as to block and limit the clamping member 122, thereby limiting the disengagement of the ejector rod mechanism 120 and the sleeve mechanism 110 and improving the connection reliability of the connecting structure 100.

[0053] As shown in the drawings, in one embodiment, the sleeve mechanism 110 is configured with a second accommodating groove 113, and the extension direction of the second accommodating groove 113 is parallel to the radial direction of the first connecting shaft 121; the locking module 112 comprises a second connecting shaft 1124 which is slidingly connected to the second accommodating groove 113, and the locking portion 1121 is arranged at the end of the second connecting shaft 1124; one end of the elastic member 1123 abuts against the locking portion 1121, and the other end abuts against the sleeve mechanism 110; after the external force acting on the second connecting shaft 1124 is removed, the elastic member 1123 is used to drive the second connecting shaft 1124 back to the original position. Figures 5 to 8

[0054] Specifically, the second accommodating groove 113 penetrates the sleeve mechanism 110 along the radial direction of the first connecting shaft 121. When the locking portion 1121 abuts against the outer circumferential surface of the clamping member 122, the second connecting shaft 1124 will move rightward in the second accommodating groove 113, so that the locking portion 1121 is retracted into the second accommodating groove 113 and the elastic member 1123 is compressed, and at the same time, the end of the second connecting shaft 1124 away from the locking portion 1121 protrudes from the sleeve mechanism 110. When the clamping member 122 moves above the locking portion 1121, the external force acting on the elastic member 1123 disappears, thereby pushing the second connecting shaft 1124 back to the original position, so that the locking portion 1121 abuts against the lower end surface of the clamping member 122, thereby blocking and limiting the clamping member 122, thereby limiting the disengagement of the ejector rod mechanism 120 and the sleeve mechanism 110 and improving the connection reliability of the connecting structure 100. Further, the elastic member 1123 is sleeved on the second connecting shaft 1124 and abuts between the inner wall of the sleeve mechanism 110 and the locking portion 1121, so that when the locking portion 1121 moves, the elastic member 1123 is elastically deformed.

[0055] As​​Figure 7 As shown, in an embodiment, the number of locking modules 112 is two groups, and they are distributed along the radial direction of the first connecting shaft 121, that is, the number of locking portions 1121, second connecting shafts 1124 and elastic members 1123 is two groups. When the connecting structure 100 is in the connected state, the two locking portions 1121 abut against the left and right sides of the lower end surface of the clamping piece 122, respectively. By arranging two groups of locking modules 112, the blocking effect of the locking portions 1121 on the clamping piece 122 is improved, thereby improving the connection reliability of the sleeve mechanism 110 and the ejector rod mechanism 120, and improving the use reliability of the connecting structure 100. In other embodiments, the number of locking modules 112 is multiple groups, and the multiple groups of locking modules 112 are uniformly distributed along the circumferential direction of the first connecting shaft 121, so as to improve the blocking effect on the clamping piece 122.

[0056] As shown, Figures 5 to 8 In one of the embodiments, the connecting structure 100 further comprises an unlocking piece 130 slidingly connected to the first connecting shaft 121; the unlocking piece 130 comprises an unlocking section 131, and the radial dimension of the unlocking section 131 gradually decreases from the direction in which the sleeve mechanism 110 points to the ejector rod mechanism 120; the unlocking piece 130 has a locked position and an unlocked position; when the unlocking piece 130 is in the unlocked position, the unlocking section 131 is connected to the end surface of the clamping piece 122 away from the sleeve mechanism 110, and the outer circumferential surface of the unlocking piece 130 abuts against the locking portion 1121; when the unlocking piece 130 is in the locked position, the unlocking piece 130 is spaced apart from the clamping piece 122 along the axial direction of the first connecting shaft 121.

[0057] Specifically, the unlocking piece 130 can move along the axial direction of the first connecting shaft 121, so as to switch between the unlocked position and the locked position. As shown, Figure 7 When the connecting structure 100 is in the second state, that is, the connected state, if the first connecting shaft 121 continues to move close, that is, the first connecting shaft 121 moves upward, the unlocking piece 130 will be synchronously moved upward until the outer circumferential surface of the unlocking piece 130 abuts against the locking portion 1121. With the continuous upward movement of the first connecting shaft 121, the locking portion 1121 will be pushed to move along the radial direction until the unlocking piece 130 moves above the locking portion 1121. Then, the first connecting shaft 121 moves downward, and the unlocking piece 130 will be moved upward under the pushing force of the locking portion 1121 and connected to the clamping piece 122. With the continuous downward movement of the first connecting shaft 121, and the unlocking piece 130 has no space to move upward, the locking portion 1121 will be pushed to move outward along the radial direction, so that the unlocking section 131 and the clamping piece 122 are gradually moved downward below the locking portion 1121, and are withdrawn from the first accommodating groove 111, thereby achieving the unlocking of the sleeve mechanism 110 and the ejector rod mechanism 120.

[0058] By setting the radial dimension of the unlocking section 131 gradually decreasing, when the unlocking section 131 of the reducing structure is connected to the clamping member 122, the unlocking section 131 can guide the movement of the first connecting shaft 121 away (i.e. the first connecting shaft 121 moves in a direction away from the sleeve mechanism 110), so that the clamping member 122 is more easily withdrawn from the first accommodating groove 111 of the sleeve mechanism 110.

[0059] As shown in the drawings, Figures 5 to 8 In one embodiment, the clamping member 122 is configured with a plug-in groove, and the unlocking member 130 further comprises a plug-in section 132 connected to the unlocking section 131; from the sleeve mechanism 110 to the direction of the top rod mechanism 120, the plug-in section 132 gradually increases in the horizontal direction; when the unlocking member 130 is in the unlocking position, the plug-in section 132 is in plug-in cooperation with the plug-in groove.

[0060] By such a setting, when the unlocking member 130 moves upward, it gradually clamps with the clamping member 122. Specifically, the radial dimension of the plug-in section 132 is adapted to the radial dimension of the plug-in groove, so that the connection between them is more close, that is, the connection between the clamping member 122 and the unlocking member 130 is more close, which facilitates the unlocking member 130 to drive the clamping member 122 to move downward below the locking portion 1121, thereby achieving unlocking.

[0061] As shown in the drawings, Figure 8 In one embodiment, the top rod mechanism 120 further comprises a baffle 123, which is used to be connected with the second transportation unit 220, and the first connecting shaft 121 is plugged into the baffle 123. By setting the baffle 123, the contact area between the top rod mechanism 120 and the second transportation unit 220 is increased, so that the connection between the top rod mechanism 120 and the second transportation unit 220 is more stable. The shape of the baffle 123 can be T-shaped.

[0062] Figure 2 As shown in the drawings, Figure 1 A partial enlarged view of A; Figure 3 A schematic view of the adjusting mechanism 140 in the connecting structure 100 according to one embodiment of the present application. As shown in the drawings, Figures 1 to 3 In one embodiment, the connecting structure 100 further comprises an adjusting mechanism 140, which comprises a first guide shaft 141 and a first connecting plate 142 rotatably connected to the first guide shaft 141; the first guide shaft 141 extends in a vertical direction, and is used to be connected with the first transportation unit 210; the first connecting plate 142 is connected with the sleeve mechanism 110; the first connecting plate 142 is configured to be operable to rotate around the first guide shaft 141, thereby driving the sleeve mechanism 110 to deflect synchronously; the vertical direction is perpendicular to the axial direction of the first connecting shaft 121. Figure 2 In the view shown, the vertical direction is the up-down direction.

[0063] Specifically, since the sleeve mechanism 110 and the top rod mechanism 120 are connected with the second transportation unit 220, the first guide shaft 141 is connected with the first transportation unit 210, thus the first connecting plate 142 rotates around the first guide shaft 141, for example, the first connecting plate 142 deflects clockwise around the first guide shaft 141, namely, the second transportation unit 220 deflects leftward relative to the first transportation unit 210, namely, the second transportation unit 220 bends rightward relative to the first transportation unit 210. When the first connecting plate 142 deflects counterclockwise around the first guide shaft 141, namely, the second transportation unit 220 deflects rightward relative to the first transportation unit 210, namely, the second transportation unit 220 bends leftward relative to the first transportation unit 210. The yawing motion of the first connecting plate 142 and the second transportation unit 220 is generated, so as to realize the turning and adapt to the working condition requiring turning. Further, the adjusting mechanism 140 further comprises a first bearing 145, the first guide shaft 141 is connected to the inner ring of the first bearing 145, and the first connecting plate 142 is connected to the outer ring of the first bearing 145. The first bearing 145 supports the first guide shaft 141.

[0064] As shown in the drawings, Figures 1 to 3 In one embodiment, the adjusting mechanism 140 further comprises a second guide shaft 143 and a second connecting plate 144 rotatably connected to the second guide shaft 143; the second guide shaft 143 extends in the horizontal direction and is cross-connected with the first guide shaft 141; the second connecting plate 144 is connected with the first transportation unit 210; the second connecting plate 144 is configured to be operable to rotate around the second guide shaft 143 to drive the first transportation unit 210 to deflect synchronously.

[0065] Specifically, the second connecting plate 144 is connected with the first transportation unit 210, for example, by a fastener such as a screw. The sleeve mechanism 110 is connected with the second transportation unit 220. Thus, when the second connecting plate 144 rotates around the second guide shaft 143, for example, the second connecting plate 144 deflects upward around the second guide shaft 143, namely, the first transportation unit 210 tilts upward relative to the second transportation unit 220. When the second connecting plate 144 deflects downward around the second guide shaft 143, namely, the first transportation unit 210 moves downward relative to the second transportation unit 220. The pitch motion of the second connecting plate 144 is generated, namely, the left end or the right end of the first transportation unit 210 tilts, so as to adapt to the working condition of road surface ups and downs or uphill and downhill. Further, the adjusting mechanism 140 further comprises a second bearing 146, the second guide shaft 143 is connected to the inner ring of the second bearing 146, and the second connecting plate 144 is connected to the outer ring of the second bearing 146. The second bearing 146 supports the second guide shaft 143. The first connecting plate 142 and the second connecting plate 144 can be U-shaped plates, and the corresponding guide shafts are rotatably connected to the two side walls of the U-shaped plates.

[0066] Further, asFigure 1 As shown, the embodiment of the present application also provides a heavy load transport device 10, comprising a plurality of transport units and at least one connecting structure 100 described above; the connecting structure 100 is used to connect adjacent transport units. For example, when the number of transport units is three, the number of connecting structures 100 is two correspondingly, so as to assemble and splice the plurality of transport units into the heavy load transport device 10, so that the transport area of the heavy load transport device 10 is increased, thereby being able to transport different types of objects and improve the versatility thereof.

[0067] Among them, the transport platform on the transport unit is provided with a mechanical arm, which can move left and right during the handling process to clamp the handled component, thereby ensuring the transport stability.

[0068] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0069] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A connection structure for connecting a first transport unit (210) and a second transport unit (220), characterized in that, The connection structure includes: A sleeve mechanism (110) is used to connect to the first transport unit (210); the sleeve mechanism (110) is configured with a first receiving groove (111) and a locking module (112), the locking module (112) including a locking portion (1121) at least partially located in the first receiving groove (111); A push rod mechanism (120) is used to connect with the second transport unit (220); the push rod mechanism (120) includes a first connecting shaft (121), the first connecting shaft (121) is provided with a snap-fit ​​member (122), and the radial dimension of the first connecting shaft (121) is smaller than the radial dimension of the snap-fit ​​member (122); The first connecting shaft (121) is configured to operably move closer to the sleeve mechanism (110) along its own axial direction, so that the snap-fit ​​member (122) pushes the locking part (1121) to move radially along the first connecting shaft (121) until the locking part (1121) abuts against the end face of the snap-fit ​​member (122) away from the sleeve mechanism (110), thereby preventing the snap-fit ​​member (122) from moving away from the sleeve mechanism (110) along the axial direction of the first connecting shaft (121) relative to the sleeve mechanism (110). In this process, the radial dimension of the snap-fit ​​member (122) gradually increases from the direction of the sleeve mechanism (110) toward the push rod mechanism (120); The locking part (1121) has a first inclined surface (1122), which slides in cooperation with the outer peripheral surface of the snap-fit ​​member (122); The locking module (112) includes an elastic element (1123), and the locking part (1121) is connected to the elastic element (1123); when the outer peripheral surface of the snap-fit ​​member (122) abuts against the locking part (1121), the elastic element (1123) is in a compressed state. The sleeve mechanism (110) is configured with a second receiving groove (113), the extension direction of which is parallel to the radial direction of the first connecting shaft (121); the locking module (112) includes a second connecting shaft (1124) slidably connected to the second receiving groove (113), and the locking part (1121) is disposed at the end of the second connecting shaft (1124); one end of the elastic member (1123) abuts against the locking part (1121), and the other end abuts against the sleeve mechanism (110); after the external force acting on the second connecting shaft (1124) is removed, the elastic member (1123) is used to drive the second connecting shaft (1124) to reset; The connection structure further includes an unlocking member (130) slidably connected to the first connecting shaft (121); the unlocking member (130) includes an unlocking section (131), the radial dimension of which gradually decreases from the sleeve mechanism (110) to the push rod mechanism (120); The unlocking member (130) has a locked position and an unlocked position; when the unlocking member (130) is in the unlocked position, the unlocking segment (131) is connected to the end face of the snap-fit ​​member (122) away from the sleeve mechanism (110), and the outer peripheral surface of the unlocking member (130) abuts against the locking part (1121). When the unlocking member (130) is in the locked position, the unlocking member (130) and the snap-fit ​​member (122) are spaced apart along the axial direction of the first connecting shaft (121).

2. The connection structure according to claim 1, characterized in that, The snap-fit ​​member (122) is configured with a plug-in slot, and the unlocking member (130) further includes a plug-in section (132) connected to the unlocking section (131); From the direction of the sleeve mechanism (110) to the push rod mechanism (120), the dimension of the insertion section (132) gradually increases in the horizontal direction; When the unlocking component (130) is in the unlocked position, the plug segment (132) is plugged into the plug slot.

3. The connection structure according to claim 1, characterized in that, The connection structure further includes an adjustment mechanism (140), which includes a first guide shaft (141) and a first connecting plate (142) rotatably connected to the first guide shaft (141); the first guide shaft (141) extends in a vertical direction and is used to connect with the first transport unit, and the first connecting plate (142) is connected with the sleeve mechanism (110); The first connecting plate (142) is configured to be operably rotated about the first guide shaft (141) to drive the sleeve mechanism (110) to deflect synchronously, the vertical direction being perpendicular to the axis of the first connecting shaft (121).

4. The connection structure according to claim 3, characterized in that, The adjustment mechanism (140) further includes a second guide shaft (143) and a second connecting plate (144) rotatably connected to the second guide shaft (143); the second guide shaft (143) extends in the horizontal direction and is cross-connected with the first guide shaft (141); the second connecting plate (144) is connected to the first transport unit (210); The second connecting plate (144) is configured to be operably rotated about the second guide shaft (143), causing the first transport unit (210) to deflect synchronously.

5. A heavy-duty transport device, characterized in that, It includes a plurality of transport units and at least one connection structure (100) as described in any one of claims 1-4; the connection structure (100) is used to connect adjacent transport units.

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