One-way telescopic inserting and taking structure

Abstract

The utility model provides a one-way telescopic inserting and taking structure which comprises a bottom supporting mechanism, a first-stage inserting and taking mechanism and a second-stage inserting and taking mechanism, the bottom supporting mechanism is provided with a bottom guide wheel set, the second-stage inserting and taking mechanism is provided with a second-stage inserting and taking guide wheel set, and the first-stage inserting and taking mechanism is provided with a bottom guide wheel groove and a second-stage inserting and taking guide wheel groove. The first-stage inserting and taking mechanism is provided with a linkage assembly, the bottom supporting mechanism and the second-stage inserting and taking mechanism are connected with the linkage assembly, and when the first-stage inserting and taking mechanism is driven to move, the first-stage inserting and taking mechanism can drive the second-stage inserting and taking mechanism to move through the linkage assembly. The one-way telescopic inserting and taking structure has the advantages that the one-way telescopic inserting and taking structure is reasonable in structure, stable in operation and convenient to maintain, guide wheel sets are arranged on the bottom supporting mechanism and the second-stage inserting and taking mechanism, and matched guide wheel grooves are formed in the first-stage inserting and taking mechanism; the first-stage inserting and taking mechanism and the second-stage inserting and taking mechanism can move along the guide wheel grooves when moving, and the stability and reliability of operation of the one-way telescopic inserting and taking structure are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of storage and material taking equipment, in particular to a one-way telescopic insertion and taking structure. Background Art

[0002] In stereoscopic warehouse systems, telescopic insertion structures are widely used in warehousing, papermaking, packaging, printing, tobacco, home appliances, wine and beverages, wool and cotton textiles, port terminals, railways, automobile manufacturing, new energy industries, steel smelting, chemicals and construction industries. Traditional telescopic insertion structures are used in which goods are stacked in pallets or boxes, and the telescopic insertion is extended to pick up goods from the bottom of the pallet or box. With the diversification of product specifications, the market requirements for telescopic insertion will become more diversified and specific.

[0003] In the logistics industry, autonomous mobile robots need to perform long-stroke insertion and extraction actions in a limited space. There are currently various ways to achieve this. The existing telescopic insertion and extraction structure is complex, costly, occupies a large space, causes large shaking during telescopic insertion, causes severe drop of the insertion plate, and has poor precision.

[0004] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a one-way telescopic plug-in structure with reasonable overall layout, convenient maintenance and high reliability.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a one-way telescopic plug-in structure, including a bottom support mechanism, a primary plug-in mechanism and a secondary plug-in mechanism, the bottom support mechanism is provided with a bottom guide wheel group along the moving direction, the secondary plug-in mechanism is provided with a secondary plug-in guide wheel group along the moving direction, the primary plug-in mechanism is provided with a bottom guide wheel groove corresponding to the bottom guide wheel group, the primary plug-in mechanism is provided with a secondary plug-in guide wheel groove corresponding to the secondary plug-in guide wheel group, the primary plug-in mechanism is provided with a linkage component, the bottom support mechanism and the secondary plug-in mechanism are respectively connected to the linkage component, when the primary plug-in mechanism is driven to move, the primary plug-in mechanism can drive the secondary plug-in mechanism to move relative to the primary plug-in mechanism through the linkage component.

[0007] Furthermore, the linkage assembly includes a sprocket and a chain, the sprockets are arranged at both ends of the primary plug-in mechanism along the moving direction, the chain is wrapped around the two sprockets, and the bottom support mechanism and the secondary plug-in mechanism are respectively connected to the chain through fixing parts.

[0008] Furthermore, the linkage assembly includes a synchronous wheel and a synchronous belt, the synchronous wheels are arranged at both ends of the first-level plug-in mechanism along the moving direction, the synchronous belt is wrapped around two synchronous wheels, and the bottom support mechanism and the second-level plug-in mechanism are respectively connected to the synchronous belt through fixing parts.

[0009] Furthermore, the bottom supporting mechanism is provided with a driver, a driving gear is provided on a driving shaft of the driver, and the first-level plug-in mechanism is provided with a driving rack corresponding to the driving gear, and the driving gear is meshed with the driving rack.

[0010] Furthermore, an adaptive primary guide component is provided between the bottom support mechanism and the primary plug-in mechanism; an adaptive secondary guide component is provided between the primary plug-in mechanism and the secondary plug-in mechanism.

[0011] Furthermore, the primary guide assembly is an adapted primary linear guide rail and a primary linear slide groove; the secondary guide assembly is an adapted secondary linear guide rail and a secondary linear slide groove.

[0012] Furthermore, the primary linear slideway and the secondary linear slideway are both dovetail grooves.

[0013] Furthermore, the primary linear slideway and the secondary linear slideway are both rectangular grooves.

[0014] Furthermore, the primary guide assembly and the secondary guide assembly are both adapted ball splines.

[0015] Furthermore, the bottom guide wheel groove is arranged on the outer side of the first-level plug-in mechanism; and the second-level plug-in guide wheel groove is arranged on the inner side of the first-level plug-in mechanism.

[0016] The beneficial effects of the utility model are: providing a one-way telescopic plug-in structure with a reasonable structure, stable operation and easy maintenance. The structure arranges a guide wheel group on the bottom support mechanism and the secondary plug-in mechanism, and arranges an adaptive guide wheel groove on the primary plug-in mechanism, so that the primary plug-in mechanism and the secondary plug-in mechanism can move along the guide wheel groove when moving, thereby ensuring the stability and reliability of the operation of the one-way telescopic plug-in structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific structure of the utility model is described in detail below with reference to the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the one-way telescopic insertion structure of the utility model in an extended state from one viewing angle;

[0019] Figure 2 It is a schematic diagram of the overall structure of the one-way telescopic insertion structure of the utility model in another perspective when the one-way telescopic insertion structure is in an extended state;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the one-way telescopic insertion and extraction structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the overall structure of the bottom support mechanism of the utility model;

[0022] Figure 5 It is a cross-sectional structural schematic diagram of the bottom support mechanism of the utility model;

[0023] Figure 6 It is a schematic diagram of the overall structure of the primary insertion and extraction mechanism of the utility model;

[0024] Figure 7 It is a cross-sectional structural diagram of the primary insertion and extraction mechanism of the utility model;

[0025] Figure 8 It is a schematic diagram of the overall structure of the secondary plug-in and take-out mechanism of the utility model;

[0026] Fig. 9 It is a cross-sectional structural diagram of the secondary plug-in and take-out mechanism of the utility model;

[0027] 1-bottom support mechanism; 11-bottom plate; 12-bottom guide wheel assembly mounting seat; 13-bottom guide wheel; 14-driver; 141-driving gear; 15-primary linear slide; 16-first fixing member;

[0028] 2-first-level plug-in mechanism; 21-first-level plug-in plate; 22-side plate; 221-bottom guide wheel groove; 222-second-level plug-in guide wheel groove; 23-sprocket; 231-chain; 24-driving rack; 25-second-level linear slide; 26-first-level linear slide;

[0029] 3-secondary plug-in mechanism; 31-secondary plug-in plate; 32-secondary plug-in guide wheel assembly mounting seat; 33-secondary plug-in guide wheel; 34-secondary linear guide rail. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0036] Example

[0037] See also Figures 1 to 9 The present embodiment provides a one-way telescopic plug-in structure, including a bottom support mechanism 1, a primary plug-in mechanism 2 and a secondary plug-in mechanism 3. The bottom support mechanism 1 is provided with a bottom guide wheel group along the moving direction, and the secondary plug-in mechanism 3 is provided with a secondary plug-in guide wheel group along the moving direction. The primary plug-in mechanism 2 is provided with a bottom guide wheel groove corresponding to the bottom guide wheel group, and the primary plug-in mechanism 2 is provided with a secondary plug-in guide wheel groove corresponding to the secondary plug-in guide wheel group. The primary plug-in mechanism 2 is provided with a linkage component, and the bottom support mechanism 1 and the secondary plug-in mechanism 3 are respectively connected to the linkage component. When the primary plug-in mechanism 2 is driven to move, the primary plug-in mechanism 2 can drive the secondary plug-in mechanism 3 to move relative to the primary plug-in mechanism 2 through the linkage component.

[0038] In this embodiment, the bottom support mechanism 1 includes a bottom plate 11, and the one-way telescopic plug-in structure can be installed on the AGV trolley through the bottom plate 11. The bottom plate 11 is provided with a bottom guide wheel assembly mounting seat 12 on both sides along the first-level plug-in mechanism 1. Each bottom guide wheel assembly mounting seat 12 is provided with a group of bottom guide wheel assemblies, and each group of bottom guide wheel assemblies is composed of a plurality of bottom guide wheels 13.

[0039] The secondary plug-in mechanism 3 includes a secondary plug-in plate 31, and a secondary plug-in guide wheel assembly mounting seat 32 is provided on both sides of the secondary plug-in plate 31. Each secondary plug-in guide wheel assembly mounting seat 32 is provided with a group of secondary plug-in guide wheels, and each group of secondary plug-in guide wheels is composed of a plurality of secondary plug-in guide wheels 33.

[0040] In order to prevent the cargo from interfering with the secondary insertion guide wheel group and causing a malfunction, extensions are provided on both sides of the secondary insertion plate 31 of the secondary insertion mechanism to the outside, and the extensions can shield the secondary insertion guide wheel group to ensure that the cargo does not press the secondary insertion guide wheel group;

[0041] The primary plug-in mechanism 2 includes a primary plug-in plate 21, each of which is provided with a side plate 22 on both sides of the moving direction. Each side plate 22 is provided with a bottom guide wheel groove 221 corresponding to the bottom guide wheel group, and a secondary plug-in guide wheel groove 222 corresponding to the secondary plug-in guide wheel group.

[0042] When the bottom support mechanism 1 and the primary insertion mechanism 2 are combined together, the bottom guide wheel group can be movably arranged in the bottom guide wheel groove 221. When the primary insertion mechanism 2 is moved, the bottom guide wheel groove 221 can cooperate with the bottom guide wheel group to provide the primary insertion mechanism 2 with reliable bearing capacity and move more smoothly.

[0043] When the secondary insertion mechanism 3 and the primary insertion mechanism 2 are combined together, the secondary insertion guide wheel group can be movably placed in the secondary insertion guide wheel groove 222. When the secondary insertion mechanism 3 is moved, the secondary insertion guide wheel groove 222 can be used in conjunction with the secondary insertion guide wheel group to provide the secondary insertion mechanism 3 with reliable load-bearing capacity while moving more smoothly.

[0044] In order to drive the extension and retraction of the secondary plug-in mechanism 3 while driving the primary plug-in mechanism 2 to move, the primary plug-in mechanism 2 is provided with a linkage component, and the bottom support mechanism 1 and the secondary plug-in mechanism 3 are respectively connected to the linkage component. When the primary plug-in mechanism 2 is driven to move, the linkage component can be used to drive the secondary plug-in mechanism 3 to move relative to the primary plug-in mechanism 2, thereby achieving a longer distance plug-in action.

[0045] In one embodiment, the structure of the linkage assembly is improved to ensure the reliability of the linkage of the bottom support mechanism 1, the primary plug-in mechanism 2, and the secondary plug-in mechanism 3. Specifically, the linkage assembly includes a sprocket 23 and a chain 231, the sprocket 23 is arranged at both ends of the primary plug-in mechanism 2 along the moving direction, the chain 231 is wound around the two sprockets 23, and the bottom support mechanism 1 and the secondary plug-in mechanism 3 are connected to the chain 231 through the fixing member 16 respectively.

[0046] In this embodiment, the primary insertion mechanism 2 and the secondary insertion mechanism 3 are linked by the sprocket 23 and the chain 231, so that the one-way telescopic insertion structure can extend its service life when it is subjected to heavy loads.

[0047] The primary plug-in plate 21 of the primary plug-in mechanism 2 is provided with a notch for accommodating a sprocket 23 at both ends in the moving direction, and a sprocket shaft is provided in each notch. The sprocket 23 is rotatably arranged on the sprocket shaft, and the chain 231 is wound around the two sprockets 23. The side of the chain 231 close to the bottom support mechanism 1 is connected to the bottom support mechanism 1 through the first fixing member 16, and the side of the chain 231 close to the secondary plug-in mechanism 3 is connected to the secondary plug-in mechanism 3 through the second fixing member. When the primary plug-in mechanism 2 is driven to move, the primary plug-in mechanism 2 drives the chain 231 to rotate around the two sprockets 23 through the first fixing member 16, and then drives the secondary plug-in mechanism 3 to move through the second fixing member, thereby realizing the linkage between the bottom support mechanism 1, the primary plug-in mechanism 2 and the secondary plug-in mechanism 3.

[0048] In one embodiment, the structure of the linkage assembly is improved to ensure the reliability of the linkage of the bottom support mechanism 1, the primary plug-in mechanism 2, and the secondary plug-in mechanism 3. Specifically, the linkage assembly includes a synchronous wheel and a synchronous belt, the synchronous wheels are arranged at both ends of the primary plug-in mechanism along the moving direction, the synchronous belt is wound around the two synchronous wheels, and the bottom support mechanism and the secondary plug-in mechanism are respectively connected to the synchronous belt through fixing parts.

[0049] In this embodiment, the primary insertion mechanism 2 and the secondary insertion mechanism 3 are linked by synchronous wheels and synchronous belts, which can reduce the overall weight of the one-way telescopic insertion structure and reduce the cost of the one-way telescopic insertion structure.

[0050] The first-level plug-in plate 21 of the first-level plug-in mechanism 2 is provided with a notch for accommodating a synchronous wheel at both ends in the moving direction, and a synchronous wheel axle is provided in each notch. The synchronous wheel is rotatably arranged on the synchronous wheel axle, and the synchronous belt is wound around the two synchronous wheels. The side of the synchronous belt close to the bottom support mechanism 1 is connected to the bottom support mechanism 1 through the first fixing member 16, and the side of the synchronous belt close to the secondary plug-in mechanism is connected to the secondary plug-in mechanism through the second fixing member. When the first-level plug-in mechanism 2 is driven to move, the first-level plug-in mechanism 2 drives the synchronous belt to rotate around the two synchronous wheels through the first fixing member 16, and then drives the secondary plug-in mechanism 3 to move through the second fixing member, thereby realizing the linkage between the bottom support mechanism 1, the first-level plug-in mechanism 2 and the secondary plug-in mechanism 3.

[0051] Preferably, the synchronous wheel is a toothed synchronous wheel, and the synchronous belt is a toothed synchronous belt. The toothed synchronous belt meshes with the toothed synchronous wheel to avoid slippage between the synchronous wheel and the synchronous belt.

[0052] In one embodiment, the driving method of the insertion and extraction structure is improved to ensure the telescopic stability and reliability of the insertion and extraction structure. Specifically, the bottom support mechanism 1 is provided with a driver 14, a driving gear 141 is provided on the driving shaft of the driver 14, and the first-level insertion and extraction mechanism 2 is provided with a driving rack 24 corresponding to the driving gear, and the driving gear 141 is meshed with the driving rack 24.

[0053] In this embodiment, a driver 14 is fixed to the bottom support mechanism 1 through a driver bracket, and the driver 14 directly drives the primary plug-in mechanism 2 to move and then drives the secondary plug-in mechanism 3 to move, thereby improving energy efficiency. In order to ensure the movement of the primary plug-in mechanism 2, a driving gear 141 is provided on the driving shaft of the driver 14, and a driving rack 24 is correspondingly provided on the primary plug-in mechanism 2. The driving gear 141 is meshed with the driving rack 24, and the driving gear 141 is driven to rotate by the driver 14, thereby driving the rack 24 to make a linear motion along the tangent direction of the driving gear 141, so that the primary plug-in mechanism 2 moves horizontally, and the primary plug-in mechanism 2 drives the secondary plug-in mechanism 3 to move horizontally through the linkage assembly, thereby realizing the telescopic movement of the unidirectional telescopic plug-in structure.

[0054] In one embodiment, the guide structure between the bottom support mechanism 1, the primary plug-in mechanism 2, and the secondary plug-in mechanism 3 is improved to ensure the smoothness and reliability of the movement between the bottom support mechanism 1, the primary plug-in mechanism 2, and the secondary plug-in mechanism 3. Specifically, an adaptive primary guide component is provided between the bottom support mechanism 1 and the primary plug-in mechanism 2; an adaptive secondary guide component is provided between the primary plug-in mechanism 2 and the secondary plug-in mechanism 3.

[0055] In the present embodiment, in order to improve the stability and reliability of the operation of the one-way telescopic plug-in structure, an adaptive first-level guide component is respectively arranged between the bottom support mechanism 1 and the first-level plug-in mechanism 2, and an adaptive second-level guide component is arranged between the first-level plug-in mechanism 2 and the second-level plug-in mechanism 3. The first-level guide component and the second-level guide component are used to improve the bearing capacity of the one-way telescopic plug-in structure and provide a motion guiding function, thereby avoiding the shaking of the one-way telescopic plug-in structure during operation and achieving stable plug-in.

[0056] In one embodiment, the structures of the primary guide assembly and the secondary guide assembly are improved to ensure the smoothness and reliability of the movement between the bottom support mechanism 1, the primary insertion and extraction mechanism 2, and the secondary insertion and extraction mechanism 3. Specifically, the primary guide assembly is an adapted primary linear guide rail 26 and a primary linear slide groove 15; the secondary guide assembly is an adapted secondary linear guide rail 34 and a secondary linear slide groove 25.

[0057] In this embodiment, by setting an adaptive primary linear slide rail 26 and a primary linear slide groove 15, the primary linear slide rail 26 is allowed to reciprocate along the primary linear slide groove 15, so as to achieve the function of motion guidance and increase the load-bearing capacity. The primary linear slide rail 26 can be fixed on the lower surface of the primary plug-in plate 21 of the primary plug-in mechanism 2, and the primary linear slide groove 15 can be fixed on the upper surface of the bottom plate 11 of the bottom support mechanism 1, and then the primary linear slide rail 26 can be inserted into the primary linear slide groove 15.

[0058] Similarly, the primary linear guide rail 26 may be fixed to the upper surface of the bottom plate 11 of the bottom support mechanism 1, and the primary linear guide groove 15 may be fixed to the lower surface of the primary plug-in plate 21 of the primary plug-in mechanism 2. This embodiment does not limit this.

[0059] By setting an adaptive secondary linear guide rail 34 and a secondary linear guide groove 25, the secondary linear guide rail 34 can be reciprocated along the secondary linear guide groove 25 to achieve the function of motion guidance and increase the load-bearing capacity. The secondary linear guide rail 34 can be fixed on the lower surface of the secondary plug-in plate 31 of the secondary plug-in mechanism 3, and the secondary linear guide groove 25 can be fixed on the upper surface of the primary plug-in plate 21 of the primary plug-in mechanism 2, and then the secondary linear guide rail 34 can be inserted into the secondary linear guide groove 25.

[0060] Similarly, the secondary linear guide rail 34 may be fixed to the upper surface of the primary plug-in plate 21 of the primary plug-in mechanism 2, and the primary linear guide groove 25 may be fixed to the lower surface of the secondary plug-in plate 31 of the secondary plug-in mechanism 3. This embodiment does not limit this.

[0061] In one embodiment, the structures of the primary linear slide 15 and the secondary linear slide 25 are improved to ensure the stability and reliability of the movement between the bottom support mechanism 1, the primary insertion mechanism 2, and the secondary insertion mechanism 3. Specifically, the primary linear slide 15 and the secondary linear slide 25 are both dovetail grooves.

[0062] In the present embodiment, both the primary linear slide 15 and the secondary linear slide 25 are dovetail grooves, and the cross-sections of the portions of the primary linear slide 26 and the secondary linear slide 34 extending into the primary linear slide 15 and the secondary linear slide 25 are adapted to the cross-sections of the dovetail grooves. Using dovetail grooves as the primary linear slide 15 and the secondary linear slide 25 can avoid the up and down, left and right shaking of the one-way telescopic insertion structure during operation, thereby increasing the stability of the telescopic insertion action.

[0063] In one embodiment, the structures of the primary linear slide 15 and the secondary linear slide 25 are improved to ensure the stability and reliability of the movement between the bottom support mechanism 1, the primary insertion mechanism 2, and the secondary insertion mechanism 3. Specifically, the primary linear slide 15 and the secondary linear slide 25 are both rectangular grooves.

[0064] In the present embodiment, the primary linear slide 15 and the secondary linear slide 25 are both rectangular grooves, and the cross-sections of the portions of the primary linear slide 26 and the secondary linear slide 34 extending into the primary linear slide 15 and the secondary linear slide 5 are adapted to the cross-sections of the rectangular grooves. The use of rectangular grooves as the primary linear slide 15 and the secondary linear slide 25 can avoid the left and right shaking of the one-way telescopic insertion structure during operation, thereby increasing the stability of the telescopic insertion action.

[0065] In one embodiment, the structures of the primary guide assembly and the secondary guide assembly are improved to ensure the smoothness and reliability of movement between the bottom support mechanism 1, the primary insertion mechanism 2, and the secondary insertion mechanism 3. Specifically, the primary guide assembly and the secondary guide assembly are both adapted ball splines.

[0066] In this embodiment, the ball spline includes a spline shaft and a spline cylinder, the spline cylinder is sleeved on the spline shaft, the spline shaft is fixed on the bottom plate 11 of the bottom support mechanism 1, and the spline cylinder is fixed to the primary plug-in plate 21 of the primary plug-in mechanism 2, so that when the primary plug-in mechanism 2 moves relative to the bottom support mechanism 1, it can reciprocate along the spline shaft through the spline cylinder, thereby playing the role of mobile guide and load bearing;

[0067] Similarly, another set of spline shafts is fixed on the primary plug-in plate 21 of the primary plug-in mechanism 2, and the spline cylinders on the other set of spline shafts are fixedly connected to the secondary plug-in plate 31 of the secondary plug-in mechanism 3. This allows the secondary plug-in mechanism 3 to reciprocate along the spline shafts through the spline cylinders when it moves relative to the primary plug-in mechanism 2, thereby playing a role in movement guidance and bearing.

[0068] In one embodiment, the structure of the primary plug-in mechanism 2 is improved to ensure the compactness of the overall plug-in structure. Specifically, the bottom guide wheel groove 221 is arranged on the outside of the primary plug-in mechanism 2; the secondary plug-in guide wheel groove 222 is arranged on the inside of the primary plug-in mechanism 2.

[0069] In this embodiment, the bottom guide wheel groove 221 is arranged on the outer side of the first-level insertion and extraction mechanism 2, and the second-level insertion and extraction guide wheel groove 222 is arranged on the inner side of the first-level insertion and extraction mechanism 2. The staggered bottom guide wheel groove 221 and the second-level insertion and extraction guide wheel groove 222 can ensure the structural strength of the one-way telescopic insertion and extraction structure and have better load-bearing performance.

[0070] From the above description, it can be seen that the beneficial effects of the utility model are: providing a one-way telescopic plug-in structure with a reasonable structure, stable operation and easy maintenance. The structure arranges a guide wheel group on the bottom support mechanism and the secondary plug-in mechanism, and arranges an adaptive guide wheel groove on the primary plug-in mechanism, so that the primary plug-in mechanism and the secondary plug-in mechanism can move along the guide wheel groove when moving, thereby ensuring the stability and reliability of the operation of the one-way telescopic plug-in structure.

[0071] It is easy for those skilled in the art to understand that the above-mentioned implementation modes can be freely combined and superimposed without conflict.

[0072] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A one-way telescopic insertion and extraction structure, characterized in that: The invention comprises a bottom support mechanism, a primary plug-in mechanism and a secondary plug-in mechanism, wherein the bottom support mechanism is provided with a bottom guide wheel group along the moving direction, the secondary plug-in mechanism is provided with a secondary plug-in guide wheel group along the moving direction, the primary plug-in mechanism is provided with a bottom guide wheel groove corresponding to the bottom guide wheel group, the primary plug-in mechanism is provided with a secondary plug-in guide wheel groove corresponding to the secondary plug-in guide wheel group, the primary plug-in mechanism is provided with a linkage assembly, the bottom support mechanism and the secondary plug-in mechanism are respectively connected with the linkage assembly, and when the primary plug-in mechanism is driven to move, the primary plug-in mechanism can drive the secondary plug-in mechanism to move relative to the primary plug-in mechanism through the linkage assembly.

2. The one-way telescopic insertion and extraction structure according to claim 1, characterized in that: The linkage assembly includes a sprocket and a chain. The sprockets are arranged at both ends of the primary plug-in mechanism along the moving direction. The chain is wound around the two sprockets. The bottom support mechanism and the secondary plug-in mechanism are respectively connected to the chain through fixing parts.

3. The one-way telescopic insertion and removal structure according to claim 1, characterized in that: The linkage assembly includes a synchronous wheel and a synchronous belt. The synchronous wheels are arranged at both ends of the primary plug-in mechanism along the moving direction. The synchronous belt is wound around two synchronous wheels. The bottom support mechanism and the secondary plug-in mechanism are respectively connected to the synchronous belt through fixing parts.

4. The one-way telescopic insertion and removal structure according to claim 1, characterized in that: The bottom support mechanism is provided with a driver, a driving gear is provided on the driving shaft of the driver, and the first-level plug-in mechanism is provided with a driving rack corresponding to the driving gear, and the driving gear is meshed with the driving rack.

5. The one-way telescopic insertion and removal structure according to claim 1, characterized in that: An adaptive primary guide component is provided between the bottom support mechanism and the primary plug-in mechanism; an adaptive secondary guide component is provided between the primary plug-in mechanism and the secondary plug-in mechanism.

6. The one-way telescopic insertion and extraction structure according to claim 5, characterized in that: The primary guide assembly is an adapted primary linear guide rail and a primary linear slide groove; the secondary guide assembly is an adapted secondary linear guide rail and a secondary linear slide groove.

7. The one-way telescopic insertion and extraction structure according to claim 6, characterized in that: The primary linear slideway and the secondary linear slideway are both dovetail grooves.

8. The one-way telescopic insertion and extraction structure according to claim 6, characterized in that: The primary linear slideway and the secondary linear slideway are both rectangular grooves.

9. The one-way telescopic insertion and extraction structure according to claim 5, characterized in that: The primary guide assembly and the secondary guide assembly are both adapted ball splines.

10. The one-way telescopic insertion and removal structure according to claim 1, characterized in that: The bottom guide wheel groove is arranged on the outer side of the first-level plug-in and take-out mechanism; the second-level plug-in and take-out guide wheel groove is arranged on the inner side of the first-level plug-in and take-out mechanism.

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