Lower hidden type tail plate

Abstract

The utility model discloses a hidden tail board, which comprises a fixing device, a hoisting component and a guide rail mounted on the hoisting component, and a rack is mounted on the guide rail; the mounting mechanism comprises a cross beam and fixing supports arranged at the two ends of the cross beam, one ends of the fixing supports are connected with the cross beam, the other ends of the fixing supports are slidably connected with the guide rails, and transmission gears are arranged at the ends, close to the guide rails, of the fixing supports and meshed with the racks; the power device is fixed on the cross beam, and the output end of the power device is connected with the transmission gear; the hydraulic device is mounted on the cross beam, and the hydraulic device is hinged to the cross beam; the boarding plate assembly is composed of a first boarding plate and a second boarding plate, one end of the first boarding plate is hinged to one end of the second boarding plate, and the other end of the first boarding plate is hinged to the end, away from the cross beam, of the hydraulic device.

Description

Technical Field

[0001] The utility model relates to the technical field of tailgates, in particular to a bottom-hidden tailgate. Background Art

[0002] With the rise and gradual development of the urban cold chain distribution industry, medium and light refrigerated trucks are being used more and more widely. Since the use of hydraulic tailgates can greatly reduce the labor intensity of loading and unloading goods, the demand for tailgates in cold chain logistics is also quite urgent.

[0003] However, most of the tailgates are not suitable for small and medium-sized trucks or refrigerated trucks, especially foldable tailgates, which cannot be installed on small and medium-sized refrigerated trucks and affect the use of the tailgate by the staff. The present application proposes a technical solution to solve the above problem. Utility Model Content

[0004] The utility model is intended to solve at least one of the technical problems existing in the prior art. For this reason, the utility model proposes a hidden tailgate, which is applicable to a small truck or a refrigerated truck and has high safety performance.

[0005] The hidden tailgate according to the embodiment of the utility model comprises:

[0006] The fixing device comprises a lifting assembly and a guide rail mounted on the lifting assembly, wherein a rack is mounted on the guide rail;

[0007] The mounting mechanism comprises a crossbeam and fixed brackets disposed at both ends of the crossbeam, one end of the fixed bracket is connected to the crossbeam, and the other end is slidably connected to the guide rail, and a transmission gear is disposed at one end of the fixed bracket close to the guide rail, and the transmission gear is meshed with the rack;

[0008] A power device is fixed on the crossbeam, and an output end of the power device is connected to a transmission gear;

[0009] A hydraulic device is installed on the crossbeam, and the hydraulic device is hinged to the crossbeam;

[0010] The boarding board assembly consists of a first boarding board and a second boarding board. One end of the first boarding board is hinged to one end of the second boarding board, and the other end of the first boarding board is hinged to one end of the hydraulic device away from the crossbeam.

[0011] According to the embodiment of the utility model, the bottom-hidden tailgate, the hoisting assembly includes a hoisting bracket and a Z-shaped anti-drop bracket, one end of the anti-drop bracket is fixedly connected to the hoisting bracket, a first mounting groove is formed between the hoisting bracket and the anti-drop bracket, the guide rail is arranged in the first mounting groove and fixedly connected to the anti-drop bracket, and the second boarding board is detachably connected to one end of the anti-drop bracket. The tailgate is fixed to the frame of the truck through the hoisting assembly as a whole, wherein, in order to ensure the safety of the tailgate after being installed on the truck frame, the hoisting assembly is provided with an anti-drop bracket, and the second boarding board of the tailgate is detachably connected to the anti-drop bracket. Specifically, when the tail lift is not in use, the boarding board assembly is in a folded state, and the second boarding board is fixedly connected to the anti-drop bracket by a bolt assembly, so that the boarding board assembly will not suddenly fall off due to a malfunction even if the truck encounters bumps during driving, or the boarding board assembly is prevented from suddenly unfolding and causing it to fall off; and when the user needs to use the tail lift, it is only necessary to first disconnect the second boarding board from the anti-drop bracket, and the boarding board assembly can be used normally, effectively ensuring the safe use of the tail lift.

[0012] According to the embodiment of the utility model, the hydraulic device is composed of a first hydraulic cylinder and a second hydraulic cylinder, and the first hydraulic cylinder and the second hydraulic cylinder are connected by a hydraulic connection assembly. The height of the boarding board assembly is adjusted by the cooperation of the two hydraulic cylinders.

[0013] According to the hidden tailgate of the embodiment of the utility model, the hydraulic connection assembly includes a hydraulic support, a connecting arm and a first support, the hydraulic support is fixed on the cross beam, the first support is fixed on the first boarding board, one end of the connecting arm is hinged to the hydraulic support, and the other end is hinged to the first support, one end of the first hydraulic cylinder and the second hydraulic cylinder are both hinged to the hydraulic support, the other end of the first hydraulic cylinder is hinged to the first support, and the other end of the second hydraulic cylinder is hinged to one end of the connecting arm close to the first support.

[0014] According to the hidden tailgate of the embodiment of the utility model, a second support is provided at the bottom of the first boarding plate, and the first support is fixedly connected to the second support.

[0015] According to the bottom-hidden tailgate of the embodiment of the utility model, the cross-section of the second support is a C-shaped structure, the first support is a C-shaped structure, the first support and the second support are supported and connected in a C-shaped structure, the installation area of ​​the first support and the second support is increased to increase the force-bearing area, increase the overall rigidity, and improve the stability of the tailgate.

[0016] According to the hidden tailgate of the embodiment of the utility model, a first slot is provided at one end of the second support, and a hook is provided at one end of the first support, and the hook is hooked with the first slot.

[0017] According to the hidden tailgate of the embodiment of the utility model, the second boarding board includes a connecting board and an auxiliary boarding board with an inclined surface, one end of the connecting board is hinged to the first boarding board, and the other end is connected to the auxiliary boarding board.

[0018] According to the hidden tailgate of the embodiment of the utility model, a second slot is provided at the end connected to the boarding plate, and a plug-in portion is provided at the end of the auxiliary boarding plate, and the plug-in portion is matched and plugged with the second slot.

[0019] According to the hidden tailgate of the embodiment of the utility model, the first boarding board and the connecting board are both composed of a plurality of panels connected in sequence side by side. The user can adjust the width of the boarding board assembly according to the actual width of the truck, thereby effectively improving the versatility of the tailgate.

[0020] The hidden tailgate according to the embodiment of the utility model has at least the following beneficial effects: when the user uses the tailgate, the anti-drop bracket is first released from the fixed connection with the second boarding board. At this time, the power device is started to rotate the transmission gear. At this time, the boarding board assembly and the hydraulic device can move on the guide rail and be moved and pushed out to the compartment of the truck. After being completely pushed out, the user manually unfolds the folded boarding board assembly. At this time, the hydraulic device is started to adjust the height of the boarding board assembly according to the actual boarding height of the user, so that it can be applied to trucks of different heights. The overall structure is practical, easy to disassemble and assemble, and has high versatility.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a structural diagram of a hidden tailgate according to an embodiment of the utility model;

[0024] Figure 2 A side view of the hidden tailgate under the utility model embodiment;

[0025] Figure 3 A cross-sectional view of a hidden tailgate according to an embodiment of the utility model;

[0026] Figure 4 It is a structural diagram of a fixing device according to an embodiment of the utility model;

[0027] Figure 5 It is a front view of the fixing device of the embodiment of the utility model;

[0028] Figure 6This is an installation structure diagram of the boarding board assembly of the embodiment of the utility model;

[0029] Figure 7 A structural diagram of a panel according to an embodiment of the utility model;

[0030] Figure 8 This is a structural diagram of an auxiliary boarding plate according to an embodiment of the utility model;

[0031] Fig. 9 It is a structural diagram of the lifting assembly of an embodiment of the utility model;

[0032] Fig.10 for Figure 1 A local enlarged view of the area marked A.

[0033] Description of reference numerals:

[0034] Frame 1;

[0035] Lifting assembly 100; lifting bracket 110; anti-drop bracket 120; first installation slot 130;

[0036] Guide rail 200; rack 210;

[0037] Beam 300; fixed bracket 310; transmission gear 311; second connecting pipe 320;

[0038] Power plant 400;

[0039] The boarding board assembly 500; the first boarding board 510; the second support 511; the first slot 5111; the second boarding board 520; the connecting board 521; the second slot 5211; the connecting board 5212; the auxiliary boarding board 522; the plug-in portion 5221;

[0040] Panel 530; third slot 531; first connecting pipe 532; connecting terminal 540;

[0041] Hydraulic device 600; first hydraulic cylinder 610; second hydraulic cylinder 620;

[0042] Hydraulic connection assembly 700; hydraulic support 710; connecting arm 720; first support 730; hook portion 731;

[0043] Auxiliary component 800; auxiliary bracket 810; auxiliary wheel 820. DETAILED DESCRIPTION

[0044] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In the description of utility models, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as excluding the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0047] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0048] Reference Figures 1 to 9 The utility model provides a hidden tailgate, including a fixing device, including a hoisting assembly 100 and a guide rail 200 installed on the hoisting assembly 100, and a rack 210 is installed on the guide rail 200; a mounting mechanism, including a crossbeam 300 and a fixing bracket 310 respectively arranged at both ends of the crossbeam 300, one end of the fixing bracket 310 is connected to the crossbeam 300, and the other end is slidably connected to the guide rail 200, and a transmission gear 311 is arranged at one end of the fixing bracket 310 close to the guide rail 200, and the transmission gear 311 is connected to the gear The strip 210 is meshed; the power unit 400 is fixed on the beam 300, and the output end of the power unit 400 is connected to the transmission gear 311; the hydraulic device 600 is installed on the beam 300, and the hydraulic device 600 is hinged to the beam 300; the boarding board assembly 500 is composed of a first boarding board 510 and a second boarding board 520, one end of the first boarding board 510 is hinged to one end of the second boarding board 520, and the other end of the first boarding board 510 is hinged to one end of the hydraulic device 600 away from the beam 300.

[0049] According to some embodiments of the present application, the hoisting assembly 100 includes a hoisting bracket 110 and an anti-drop bracket 120 in a Z-shaped structure, and one end of the anti-drop bracket 120 is fixedly connected to the hoisting bracket 110. Specifically, as shown in FIG. 4, the hoisting assembly 100 includes at least four hoisting brackets 110, two hoisting brackets 110 form a group and are fixed to the truck frame 1, wherein the anti-drop bracket 120 is in a Z-shaped structure, and a first installation groove 130 for placing the guide rail 200 is formed between the hoisting bracket 110 and the anti-drop bracket 120, so that the guide rail 200 can be quickly positioned and installed, and the second boarding plate 520 is detachably connected to one end of the anti-drop bracket 120. The tailgate is fixed to the truck frame 1 through the hoisting assembly 100 as a whole, wherein, in order to ensure the safety of the tailgate after being installed on the truck frame 1, the hoisting assembly 100 is provided with the anti-drop bracket 120, and the second boarding plate 520 of the tailgate is detachably connected to the anti-drop bracket 120. Specifically, when the tailgate is not in use, the boarding board assembly 500 is in a folded state, and the second boarding board 520 is fixedly connected to the anti-drop bracket 120 by a bolt assembly, so that the boarding board assembly 500 will not suddenly fall due to a malfunction even if the truck encounters bumps during driving, or the boarding board assembly 500 is prevented from suddenly unfolding and causing the boarding board assembly 500 to fall; and when the user needs to use the tailgate, he only needs to first disconnect the second boarding board 520 from the anti-drop bracket 120, and the boarding board assembly 500 can be used normally, effectively ensuring the safety of the use of the tailgate. In addition, the spacing between the two relative sets of hoisting brackets 110 can be adjusted according to the width of the boarding board assembly 500 and the width of the truck frame 1, which significantly improves the versatility of the entire tailgate, and is easy to install and has a low manufacturing cost.

[0050] Specifically, refer to Fig.10, a connecting plate 5212 with a Z-shaped structure is provided on the connecting boarding board 521, one end of the connecting plate 5212 is fixedly connected to the connecting boarding board 521, and the other end is slidably connected to the end of the anti-drop bracket 120. The specific principle is: when the power device 400 starts to drive the boarding board assembly 500 in a folded state to move and push out, the connecting plate 5212 moves with it and releases the connection relationship with the anti-drop bracket 120. At this time, the boarding board assembly 500 is no longer constrained by the anti-drop bracket 120. When the boarding board assembly 500 is completely pushed out, it can be directly unfolded. When the user uses the tailgate and folds the boarding board assembly 500 again, the power device 400 drives the boarding board assembly 500 to reset, and the end of the anti-drop bracket 120 is directly slidably engaged with the connecting plate 5212, and finally the hoisting bracket 110 is installed to fix the boarding board assembly 500. The connection plate 5212 and the anti-drop bracket 120 are detachably connected, and the user does not need to manually disassemble and assemble the tailgate when using it. The boarding board assembly 500 can automatically disassemble or connect the connection plate 5212 and the anti-drop bracket 120 when moving, and the structure is simple and practical. At the same time, the connection surfaces of the ends of the connection plate 5212 and the anti-drop bracket 120 are both flat, which can improve the connection stability of the connection plate 5212 and the anti-drop bracket.

[0051] According to some embodiments of the present application, Figure 5 As shown, the two transmission gears 311 are connected by a second connecting pipe 320 with adjustable length. In some embodiments, the second connecting pipe 320 may be composed of a plurality of pipe bodies with decreasing diameters, so that the length of the second connecting pipe 320 can be adjusted according to the actual width.

[0052] According to some embodiments of the present application, Figure 1 As shown, the hydraulic device 600 is composed of a first hydraulic cylinder 610 and a second hydraulic cylinder 620, and the first hydraulic cylinder 610 and the second hydraulic cylinder 620 are connected by a hydraulic connection assembly 700. The two hydraulic cylinders are used to adjust the height of the boarding board assembly 500. Among them, the power of the first hydraulic cylinder 610 is greater than the power of the second hydraulic cylinder 620. The first hydraulic cylinder 610 serves as the main supporting power for the boarding board assembly 500, while the second hydraulic cylinder 620 serves as the power source for the boarding board assembly 500 to fine-tune according to the actual height.

[0053] According to some embodiments of the present application, Figure 2As shown, the hydraulic connection assembly 700 includes a hydraulic support 710, a connecting arm 720 and a first support 730. The hydraulic support 710 is fixed on the crossbeam 300, the first support 730 is fixed on the first boarding plate 510, one end of the connecting arm 720 is hinged to the hydraulic support 710, and the other end is hinged to the first support 730, one end of the first hydraulic cylinder 610 and the second hydraulic cylinder 620 are both hinged to the hydraulic support 710, the other end of the first hydraulic cylinder 610 is hinged to the first support 730, and the other end of the second hydraulic cylinder 620 is hinged to one end of the connecting arm 720 close to the first support 730.

[0054] According to some embodiments of the present application, Figure 6 As shown, a second support 511 is provided at the bottom of the first boarding plate 510, and a first support 730 is fixedly connected to the second support 511. The cross section of the second support 511 is a C-shaped structure, and the first support 730 is a C-shaped structure. The first support 730 and the second support 511 are supported and connected in a C-shaped structure, and the installation area of ​​the first support 730 and the second support 511 is increased to increase the force-bearing area, increase the overall rigidity, and improve the stability of the tail board. Furthermore, a first slot 5111 is provided at one end of the slot of the second support 511, and a hook portion 731 is provided at one end of the first support 730, and the hook portion 731 is hooked with the first slot 5111.

[0055] According to some embodiments of the present application, Figure 6 As shown, the second boarding board 520 includes a connecting boarding board 521 and an auxiliary boarding board 522 with an inclined surface, wherein one end of the connecting boarding board 521 is hinged to the first boarding board 510, and the other end is connected to the auxiliary boarding board 522. A second slot 5211 is provided at the end of the connecting boarding board 521, and a plug-in portion 5221 is provided at the end of the auxiliary boarding board 522, and the plug-in portion 5221 is matched and plugged with the second slot 5211.

[0056] According to some embodiments of the present application, the first boarding board 510 and the connecting boarding board 521 are both composed of a plurality of panels 530 connected in parallel in sequence, and the user can adjust the width of the boarding board assembly 500 according to the actual width of the truck, thereby effectively improving the versatility of the tailgate. Figure 7As shown, the panel 530 is an aluminum profile. Further. The long sides of both sides of the panel 530 are respectively provided with a third slot 531 and a first connecting pipe 532, and the two panels 530 are spliced ​​by the matching installation of the third slot 531 and the first connecting pipe 532. Specifically, as shown in the figure, there are two third slots 531 on the same side, and the two third slots 531 are arranged oppositely. In addition, the first connecting pipe 532 is also correspondingly provided with two and the two first connections are arranged oppositely, which can ensure the stability of the connection between the panels 530 and ensure the safety of the boarding board. By splicing any number of panels 530 to form the first boarding board 510 or the second boarding board 520, the first boarding board and the second boarding board 520 can be adjusted according to the size of the truck, thereby improving the versatility of the tail board.

[0057] Furthermore, as shown in the figure, the surfaces of the first boarding board 510, the connecting boarding board 521, and the auxiliary boarding board 522 are all provided with anti-slip stripes to improve the safety of the tail board.

[0058] According to some embodiments of the present application, Figure 3 As shown, the ends of the first boarding board 510 and the connecting boarding board 521 close to each other are both provided with L-shaped connecting terminals 540, and the force-bearing area between the first boarding board 510 and the connecting boarding board 521 is increased by the connecting terminals 540, thereby improving the stability of the boarding board assembly 500. Furthermore, a turning-assisting spring (not shown) is provided at the hinge of the first boarding board 510 and the connecting boarding board 521, and the turning-assisting spring is used to assist the user in folding, storing or unfolding the boarding board assembly 500, and the damping effect generated by the turning-assisting spring is used to automatically reset the first cargo board and the second cargo board, thereby extending the service life of the boarding board assembly 500.

[0059] According to some embodiments of the present application, Figure 1 and Figure 4 As shown, an auxiliary component 800 is also provided, wherein the auxiliary component 800 includes an auxiliary bracket 810 and an auxiliary wheel 820 installed on the auxiliary bracket 810, and the auxiliary bracket 810 is fixedly connected to the frame 1 of the truck. When the user uses the tailgate, when the boarding board assembly 500 moves driven by the power device 400, the auxiliary wheel 820 plays an auxiliary guiding role for the boarding board assembly 500.

[0060] When the user uses the tailgate, the anti-drop bracket 120 is first released from the fixed connection with the second boarding board 520. At this time, the power device 400 is started to rotate the transmission gear 311. At this time, the boarding board assembly 500 and the hydraulic device 600 can be moved on the guide rail 200 and pushed out to the compartment of the truck. After being completely pushed out, the user manually unfolds the boarding board assembly 500 in a folded state. At this time, the hydraulic device 600 is started to adjust the height of the boarding board assembly 500 according to the actual boarding height of the user, so as to be suitable for trucks of different heights. The overall structure is practical, easy to disassemble and assemble, and has high versatility. In the description of this specification, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0061] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. The hidden tailgate is characterized by: include: The fixing device comprises a hanging assembly and a guide rail installed on the hanging assembly, wherein a rack is installed on the guide rail; The mounting mechanism comprises a crossbeam and fixed brackets disposed at both ends of the crossbeam, one end of the fixed bracket is connected to the crossbeam, and the other end is slidably connected to the guide rail, and a transmission gear is disposed at one end of the fixed bracket close to the guide rail, and the transmission gear is meshed with the rack; A power device is fixed on the crossbeam, and an output end of the power device is connected to the transmission gear; A hydraulic device is installed on the crossbeam, and the hydraulic device is hinged to the crossbeam; The boarding board assembly consists of a first boarding board and a second boarding board, wherein one end of the first boarding board is hinged to one end of the second boarding board, and the other end of the first boarding board is hinged to one end of the hydraulic device away from the crossbeam.

2. The hidden tailgate according to claim 1, characterized in that: The lifting assembly includes a lifting bracket and an anti-drop bracket with a Z-shaped structure, one end of the anti-drop bracket is fixedly connected to the lifting bracket, a first mounting groove is formed between the lifting bracket and the anti-drop bracket, the guide rail is arranged in the first mounting groove and fixedly connected to the anti-drop bracket, and the second boarding board is detachably connected to one end of the anti-drop bracket.

3. The hidden tailgate according to claim 1, characterized in that: The hydraulic device is composed of a first hydraulic cylinder and a second hydraulic cylinder, and the first hydraulic cylinder and the second hydraulic cylinder are connected by a hydraulic connection assembly.

4. The hidden tailgate according to claim 3, characterized in that: The hydraulic connection assembly includes a hydraulic support, a connecting arm and a first support, the hydraulic support is fixed on the crossbeam, the first support is fixed on the first boarding board, one end of the connecting arm is hinged to the hydraulic support, and the other end is hinged to the first support, one end of the first hydraulic cylinder and the second hydraulic cylinder are both hinged to the hydraulic support, the other end of the first hydraulic cylinder is hinged to the first support, and the other end of the second hydraulic cylinder is hinged to one end of the connecting arm close to the first support.

5. The hidden tailgate according to claim 4, characterized in that: A second support is provided at the bottom of the first boarding plate, and the first support is fixedly connected to the second support.

6. The hidden tailgate according to claim 5, characterized in that: The cross section of the second support is a C-shaped structure, the first support is a C-shaped structure, and the first support and the second support are supported and connected in a C-shaped structure.

7. The hidden tailgate according to claim 6, characterized in that: One end of the second support is provided with a first slot, and one end of the first support has a hook portion, and the hook portion is hooked with the first slot.

8. The hidden tailgate according to claim 1, characterized in that: The second boarding board includes a connecting board and an auxiliary boarding board with an inclined surface. One end of the connecting board is hinged to the first boarding board, and the other end is connected to the auxiliary boarding board.

9. The hidden tailgate according to claim 8, characterized in that: The end of the connecting boarding plate is provided with a second slot, and the end of the auxiliary boarding plate is provided with a plug-in portion, and the plug-in portion is matched and plugged with the second slot.

10. The hidden tailgate according to claim 9, characterized in that: The first boarding plate and the connecting boarding plate are both composed of a plurality of panels connected in sequence side by side.

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