Logistics carriage rear door structure

Abstract

The utility model provides a logistics carriage rear door structure which comprises a carriage body, U-shaped seats are arranged at the bottoms of the two sides of one end of the carriage body, door plates are detachably arranged on the two U-shaped seats through clamping assemblies, and the door plates can rotate around the axes of the U-shaped seats; the retracting and releasing device comprises two groups of steel cables which are detachably connected with the door plate and are used for retracting and pulling the door plate, and two groups of storage pieces which are arranged in the carriage body and are used for retracting and releasing the steel cables; the two locking devices are arranged on the two sides of the compartment body and used for limiting closing of the door plate. A traditional two-leaf type vehicle door is changed into an integral vehicle door, then a transverse door opening and closing mode is changed into a longitudinal opening and closing mode, after a compartment door is turned up and down to be opened, one end of the compartment door makes contact with the ground or a platform to be used as an inclined ladder, and the inclined ladder reduces the frequency of frequently lifting and putting down heavy objects by carrying workers, so that the physical burden of the workers is relieved, and the working efficiency is improved. The problems that time and labor are wasted when workers load and unload goods and the working efficiency is reduced due to the fact that a carriage is higher than the ground and goods are inconvenient to carry are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of carriage, in particular to a rear door structure of a logistics carriage. Background Art

[0002] The rear door of the carriage refers to the door leaf hinged to the carriage structure at the tail of the carriage. As a passage for loading and unloading goods on the carriage, it can also protect the goods placed in the carriage during the goods transportation process.

[0003] For example, the Chinese utility model with the publication number CN218489769U discloses "a rear door structure of a logistics transportation carriage". The device includes a carriage body and a carriage door. A carriage opening is formed on one side of the carriage body. The carriage door is movably arranged on one side of the carriage body where the carriage opening is located. A locking structure is fixedly arranged between the carriage body and the carriage door. The locking structure includes an extrusion assembly, a lifting assembly, a buffer assembly, and a first locking assembly. The extrusion assemblies are symmetrically arranged on both sides of the carriage door. The relative sides of the extrusion assemblies are slidably matched with the carriage door. The extrusion assemblies can drive the carriage door to move away from or towards the carriage body. The lifting assembly is fixedly arranged on the extrusion assembly. The lifting assembly drives the carriage door to lift along the direction where the extrusion assembly is arranged. The first locking assembly is arranged on the side of the carriage door close to the carriage opening for clamping and matching with the carriage body. The buffer assembly is arranged on the side of the first locking assembly away from the carriage door, and the buffer assembly is fixedly connected with the carriage door. This device has the effect of improving the connection strength between the carriage door and the carriage body and ensuring the stability of the vehicle during transportation.

[0004] However, during the process of loading and unloading goods, since the carriage is relatively high from the ground, it is inconvenient to carry goods, resulting in time-consuming and laborious loading and unloading for the staff, high labor intensity, and reduced work efficiency. Most people will choose to build a ramp between the carriage and the ground to reduce the handling intensity. If the ramp is not built properly, accidents are likely to occur. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides a rear door structure of a logistics carriage, which solves the problems in the prior art that the carriage is relatively high from the ground, it is inconvenient to carry goods, resulting in time-consuming and laborious loading and unloading for the staff, high labor intensity, and reduced work efficiency.

[0006] According to an embodiment of the utility model, a rear door structure of a logistics carriage includes a carriage body, with U-shaped seats arranged at the bottoms of both sides at one end. Both U-shaped seats are detachably provided with door panels through clamping components, and the door panels can rotate around the axis of the U-shaped seats; a retracting and releasing device, including two groups of steel cables detachably connected to the door panels for retracting and pulling the door panels, and two groups of receiving members arranged inside the carriage body for retracting and releasing the steel cables; two groups of locking devices, arranged on both sides of the carriage body for restricting the closed door panels.

[0007] Compared with the prior art, the utility model has the following beneficial effects: By replacing the traditional two-panel doors with a single integral door, and then converting the horizontal opening and closing method of the door into a vertical opening and closing method, when the carriage door is turned over and opened, one end contacts the ground or platform to be used as an inclined ladder. The inclined ladder reduces the number of times that the handling workers need to frequently lift and lower heavy objects, thereby reducing the physical burden on the workers, lowering the work risk caused by fatigue, and at the same time, it can also reduce the risk of workers climbing and falling from heights. With the setting of the retracting device and the locking device, the retracting device can control the opening and closing of the carriage door to avoid injury caused by the door falling due to its own gravity when it is opened, and the locking device can lock the closed carriage door to prevent it from opening by itself.

[0008] Preferably, each clamping component includes a tooth that is movably arranged on the carriage body and a control shaft that is fixedly arranged on the tooth. Two sets of travel grooves are formed on the carriage body, and the two control shafts are respectively located in the corresponding travel grooves and are movable.

[0009] Preferably, each travel groove includes a channel and clamping holes arranged at both ends of the channel. A clamping ring and a return spring are sleeved on each control shaft, and the clamping ring is clamped in the corresponding clamping hole under the elastic force of the return spring.

[0010] Preferably, storage grooves are formed on both sides of the carriage body. Each storage component includes a wire winding roller that is rotatably arranged in the corresponding storage groove for winding the corresponding steel cable and a second gear arranged at one end of the wire winding roller. An installation seat is arranged on the top of the carriage body, and a transmission shaft is rotatably arranged on the installation seat. First gears are arranged at both ends of the transmission shaft, and the two first gears are respectively meshed with the corresponding second gears.

[0011] Preferably, each locking device includes a rotating rod that is rotatably arranged on both sides of the carriage body. Baffles are arranged on both sides of one end of the door panel away from the clamping component, and the two rotating rods are respectively clamped on the corresponding baffles.

[0012] Preferably, a reinforcing rib is arranged on the side of the door panel away from the carriage body.

[0013] Preferably, anti-slip patterns are arranged on the side of the door panel close to the carriage body.

[0014] Preferably, rollers are rotatably arranged in each storage groove, and the two rollers are in contact with the corresponding steel cable.

[0015] Preferably, a hexagonal prism is arranged at one end of the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic three-dimensional structure diagram of an embodiment of the utility model.

[0017] Figure 2 is an exploded structure diagram of an embodiment of the utility model.

[0018] Figure 3 This is a schematic structural diagram of the middle retracting and deploying device of the embodiment of the present utility model.

[0019] Figure 4 is Figure 2 an enlarged view of area A in

[0020] Figure 5 is Figure 2 an enlarged view of area B in

[0021] In the above-mentioned drawings: 1. Carriage body; 101. Mounting seat; 103. Storage groove; 104. Rotating rod; 105. U-shaped seat; 2. Door panel; 201. Reinforcing rib; 202. Baffle; 3. Transmission shaft; 301. First gear; 302. Hexagonal prism; 4. Second gear; 401. Steel cable; 402. Roller; 403. Stranding roller; 5. Tooth; 501. Control shaft; 502. Channel; 503. Card hole; 504. Stroke groove; 505. Return spring; 506. Snap ring. Detailed implementation manners

[0022] The technical solutions in the present utility model will be further described below with reference to the drawings and embodiments.

[0023] As Figures 1 to 5 shown, an embodiment of the present utility model provides a rear door structure of a logistics carriage, which includes a carriage body 1, and U-shaped seats 105 are arranged at the bottoms on both sides of one end thereof. Two U-shaped seats 105 are each detachably provided with a door panel 2 through a clamping assembly, and the door panel 2 can rotate around the axis of the U-shaped seat 105; a retracting and deploying device, including two groups of steel cables 401 detachably connected to the door panel 2 for retracting and pulling the door panel 2, and two groups of storage members arranged in the carriage body 1 for retracting and deploying the steel cables 401; two groups of locking devices, arranged on both sides of the carriage body 1 for restricting the closed door panel 2.

[0024] The detailed working process of this embodiment is as follows: By replacing the traditional two-panel door with an integral door, and then converting the horizontal opening and closing method of the door into a vertical opening and closing (rotating around the axis of the U-shaped seat 105), after the carriage door is turned over and opened, one end contacts the ground or the platform to be used as an inclined ladder. The inclined ladder reduces the number of times that the handling workers need to frequently lift and lower heavy objects, thereby reducing the physical burden of the workers, reducing the work risks caused by fatigue, and at the same time, it can also reduce the risks of the workers climbing and falling from heights. Under the setting of the retracting and deploying device and the locking device, the retracting and deploying device can control the opening and closing of the carriage door to avoid injury caused by the carriage door falling due to its own gravity when it is opened, and the locking device can lock the closed carriage door to prevent it from opening by itself.

[0025] As Figure 2 compared with Figure 4As shown, each latch assembly includes a latch tooth 5 movably arranged on the carriage body 1 and a control shaft 501 fixedly arranged on the latch tooth 5. Two sets of travel grooves 504 are opened on the carriage body 1. The two control shafts 501 are respectively located in the corresponding travel grooves 504 and are movable.

[0026] The detailed working process of this embodiment is as follows: in order to facilitate the use of a forklift for unloading, the door panel 2 is detachably arranged on the U-shaped seat 105, and is limited by the clamping assembly. Under normal circumstances, the clamping tooth 5 contacts the corresponding U-shaped seat 105 to limit the door panel 2 and prevent the door panel 2 from falling from the U-shaped seat 105. When the door panel 2 needs to be removed, the clamping tooth 5 is controlled to be away from the U-shaped seat 105.

[0027] like Figure 4 As shown, each travel groove 504 includes a channel 502 and a clamping hole 503 arranged at both ends of the channel 502, and each control shaft 501 is sleeved with a clamping ring 506 and a return spring 505, and the clamping ring 506 is clamped in the corresponding clamping hole 503 under the elastic force of the return spring 505.

[0028] The detailed working process of this embodiment is as follows: under the setting of the retaining ring 506 and the return spring 505, the retaining tooth 5 is prevented from being displaced during the shaking process and moving away from the U-shaped seat 105 on its own. The retaining ring 506 can be restricted in any retaining hole 503 by the elastic force of the return spring 505. When the retaining tooth 5 needs to be moved, the retaining ring 506 only needs to be pulled out.

[0029] like Figure 2 and Figure 3 As shown, storage grooves 103 are opened on both sides of the car body 1, and each storage member includes a wire twisting roller 403 rotatably set in the corresponding storage groove 103 for winding the corresponding steel cable 401 and a second gear 4 set at one end of the wire twisting roller 403. A mounting seat 101 is set on the top of the car body 1, and a transmission shaft 3 is rotatably set on the mounting seat 101. First gears 301 are set at both ends of the transmission shaft 3, and the two first gears 301 are respectively meshed with the corresponding second gears 4.

[0030] The detailed working process of this embodiment is: one end of the wire roller 403 is detachably connected to the door panel 2, and the other end is connected to the wire roller 403. The wire roller 403 is used for retracting and extending. The wire roller 403 is driven to rotate by controlling the transmission shaft 3. The wire roller 403 is rotated to retract and extend. The transmission shaft 3 can be rotated manually or connected to the motor transmission and driven by the motor to control the door panel 2.

[0031] like Figure 2 and Figure 5As shown in the figure, each locking device includes a rotating rod 104 rotatably arranged on both sides of the carriage body 1. On both sides of one end of the door panel 2 away from the clamping assembly, baffles 202 are provided, and the two rotating rods 104 are respectively clamped on the corresponding baffles 202.

[0032] The detailed working process of this embodiment is as follows: With the arrangement of the rotating rod 104 and the baffle 202, the closed door panel 2 is fixed. Rotate the rotating rod 104 and clamp it on the baffle 202 for fixation. When it is necessary to open the door panel 2, just rotate the rotating rod 104 in the reverse direction.

[0033] As Figure 2 shown, a reinforcing rib 201 is provided on one side of the door panel 2 away from the carriage body 1.

[0034] The detailed working process of this embodiment is as follows: With the arrangement of the reinforcing rib 201, without increasing the plate thickness, the reinforcing rib 201 can effectively enhance the strength and rigidity of the door panel 2, thereby saving materials, reducing weight, and lowering costs.

[0035] As Figure 1 shown, an anti-slip pattern is provided on one side of the door panel 2 close to the carriage body 1.

[0036] The detailed working process of this embodiment is as follows: One side of the door panel 2 close to the carriage body 1 is used for stepping on after being opened. Setting the anti-slip pattern on it can increase the friction coefficient of the ladder surface, reduce slip accidents caused by the wet or greasy ladder surface, thereby improving the safety of users on the inclined ladder. In wet, rainy, snowy weather or greasy working environments, the anti-slip pattern can effectively prevent slipping, enabling the inclined ladder to be safely used in various harsh environments.

[0037] As Figure 3 shown, a roller 402 is rotatably arranged in each storage groove 103, and the two rollers 402 are in contact with the corresponding steel cable 401.

[0038] The detailed working process of this embodiment is as follows: The roller 402 can significantly reduce the friction between the rope and the carriage body 1 during the movement process. By moving the steel cable 401 along the path of the roller 402, the wear of the steel cable 401 can be reduced, and its service life can be extended.

[0039] As Figure 3 shown, a hexagonal prism 302 is provided at one end of the transmission shaft 3.

[0040] The detailed working process of this embodiment is as follows: The function of the hexagonal prism 302 is to facilitate controlling the transmission shaft 3 through tools.

[0041] The implementation principle of the embodiment of this application is as follows: Under normal conditions, the door panel 2 is closed. When the door panel 2 needs to be opened, first rotate the rotating rod 104 to disengage its baffle 202, and then rotate the transmission shaft 3 to relax the wire winding roller 403, so that the door panel 2 is slowly lowered until it contacts the ground or the platform and forms an inclined ladder for use by overlapping.

[0042] When the door panel 2 needs to be removed, pull the snap ring 506 out of the snap hole 503, and then control the snap teeth 5 to move away from the U-shaped seat 105 to open the U-shaped seat 105, and the door panel 2 can be removed from the U-shaped seat 105.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A rear door structure of a logistics carriage, characterized in that, Comprising: A carriage body (1), at both sides of the bottom of one end thereof are provided with U-shaped seats (105), both of the U-shaped seats (105) are detachably provided with door panels (2) through clamping components, and the door panels (2) can rotate around the axis of the U-shaped seats (105); A retracting device, including two groups of steel cables (401) detachably connected to the door panels (2) for retracting and pulling the door panels (2), and two groups of receiving members arranged inside the carriage body (1) for retracting and releasing the steel cables (401); Two groups of locking devices, arranged on both sides of the carriage body (1) for restricting the closed door panels (2).

2. The rear door structure of the logistics carriage according to claim 1, characterized in that: Each of the clamping components includes a tooth (5) movably arranged on the carriage body (1) and a control shaft (501) fixedly arranged on the tooth (5), two groups of travel grooves (504) are formed on the carriage body (1), both of the control shafts (501) are respectively located in the corresponding travel grooves (504) and are movable.

3. The rear door structure of the logistics carriage according to claim 2, characterized in that: Each of the travel grooves (504) includes a channel (502) and clamping holes (503) arranged at both ends of the channel (502), a snap ring (506) and a return spring (505) are sleeved on each of the control shafts (501), and the snap ring (506) is clamped in the corresponding clamping hole (503) under the elastic force of the return spring (505).

4. The rear door structure of the logistics carriage according to claim 1, characterized in that: Receiving grooves (103) are formed on both sides of the carriage body (1), each of the receiving members includes a wire winding roller (403) rotatably arranged in the corresponding receiving groove (103) for winding the corresponding steel cable (401) and a second gear (4) arranged at one end of the wire winding roller (403), a mounting seat (101) is arranged on the top of the carriage body (1), a transmission shaft (3) is rotatably arranged on the mounting seat (101), first gears (301) are arranged at both ends of the transmission shaft (3), and the two first gears (301) are respectively meshed with the corresponding second gears (4).

5. The rear door structure of the logistics carriage according to claim 1, wherein: Each of the locking devices includes a rotating rod (104) rotatably arranged on both sides of the carriage body (1), baffles (202) are arranged on both sides of one end of the door panel (2) far away from the clamping component, and the two rotating rods (104) are respectively clamped on the corresponding baffles (202).

6. The rear door structure of the logistics carriage according to claim 2, characterized in that: Reinforcing ribs (201) are arranged on the side of the door panel (2) far away from the carriage body (1).

7. The rear door structure of the logistics carriage according to claim 6, characterized in that: Anti-slip patterns are arranged on the side of the door panel (2) close to the carriage body (1).

8. The rear door structure of the logistics carriage according to claim 4, characterized in that: A roller (402) is rotatably arranged in each of the receiving grooves (103), and the two rollers (402) are in contact with the corresponding steel cables (401).

9. The rear door structure of the logistics carriage according to claim 4, characterized in that: A hexagonal prism (302) is arranged at one end of the transmission shaft (3).

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