Gathering type rear door opening cart structure

Abstract

The utility model relates to the technical field of gathering carts, in particular to a gathering type rear door opening cart structure which comprises four first connecting plates, supporting pipes are fixedly connected to the upper end faces of the four first connecting plates, and inserting rods are connected into the four supporting pipes in a sliding mode. When the door opening and closing mechanism needs to be opened, the door opening and closing mechanism can be pulled to be separated from the two rubber buckles, and due to the fact that the rubber buckles are arranged on the inserting rods, the rubber buckles are prevented from rotating and moving along with the door opening and closing mechanism, and then the rubber buckles are prevented from being damaged by impacting the ground; meanwhile, due to the fact that the rubber buckle is fixedly connected to the surface of the inserting rod and does not move along with the door opening and closing mechanism, the rubber buckle does not rotate or deviate, and when the door opening and closing mechanism needs to be closed, the door opening and closing mechanism is pressed and limited in the rubber buckle by rotating the door opening and closing mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of gathering carts, in particular to a gathering type rear-door opening cart structure. Background Art

[0002] A trolley is a transport tool used to carry goods. The gather trolley is an improvement on the original trolley structure, which allows the trolley to be folded, stretched and stored, making it easier to store the trolley.

[0003] The rear-door trolley is a gathering trolley with a sealed door at the rear that can be folded, rotated and opened, so that the trolley can be loaded or unloaded conveniently through the rear door.

[0004] The connection between the opening and closing door and the main body of the existing rear-opening gathering carts mostly adopts a spring buckle connection, and the buckle is connected to the opening and closing door. The opening and closing door is limited by locking the buckle on the body after closing the door. However, in actual applications, it is found that there are obvious defects in fixing the buckle on the opening and closing door. For example, when loading is required, the buckle is easy to hit the ground and cause damage when the opening and closing door is opened, and the buckle is easy to loosen and rotate with the rotation and swing of the opening and closing door. When closing the door, the buckle needs to be rotated and straightened before the buckle can be clamped on the cart body. For this reason, we propose a gathering type rear-opening cart structure. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a gathering type rear-opening door trolley structure.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is: a gathering type rear-opening door cart structure, including four first connecting plates, the upper end surfaces of the four first connecting plates are fixedly connected to support tubes, the four support tubes are slidably connected with plug rods, the upper end surfaces of the four plug rods are fixedly connected to second connecting plates, and also includes:

[0007] A side support mechanism, the side support mechanism is located between the four support tubes, and the side support mechanism is used to limit and support three sides of the cart;

[0008] A bottom support mechanism, the bottom support mechanism is located between the four first connecting plates, and the bottom support mechanism is used to limit and support the bottom of the cart;

[0009] An opening and closing door mechanism, the opening and closing door mechanism is rotatably hinged to the right end surfaces of the two first connecting plates on the right side, and the opening and closing door mechanism is used to seal one side of the cart;

[0010] Two rubber buckles, both of which are fixedly connected to the circumferential surface of the two right-side plug rods, and the two rubber buckles are respectively located between the two right-side second connecting plates and the two right-side support tubes to buffer the extrusion force between the second connecting plates and the support tubes, and both of which are elastically clamped on the opening and closing door mechanism.

[0011] Preferably, the side support mechanism includes four third rotating rods, which are respectively hinged to four second connecting plates, the two front third rotating rods and the two rear third rotating rods are respectively hinged to each other, the four first connecting plates are hinged with fourth rotating rods, the two front fourth rotating rods and the two rear fourth rotating rods are respectively hinged to each other, the middle parts of the four third rotating rods are respectively hinged to the middle parts of the four fourth rotating rods, the two left second connecting plates are hinged with second rotating rods, the middle parts of the two second rotating rods are hinged to each other, and the other ends of the two second rotating rods are respectively hinged to the two left first connecting plates.

[0012] Preferably, the bottom support mechanism includes a fixed plate, which is located between four first connecting plates, and the lower end surface of the fixed plate is hinged with four first rotating rods, the other ends of the four first rotating rods are respectively hinged to the four first connecting plates, and the lower end surfaces of the four first connecting plates are fixedly connected with rollers.

[0013] Preferably, the opening and closing door mechanism includes two fixed rods, the two fixed rods are respectively hinged to the right end surfaces of the two first connecting plates on the right side, the upper end surfaces of the two fixed rods are fixedly connected to the third connecting plate, the surfaces of the two fixed rods are slidably connected to slide plates, the six rotating rods are hinged to the two third connecting plates, the close ends of the two sixth rotating rods are hinged to each other, the seven rotating rods are hinged to the two slide plates, the close ends of the two seventh rotating rods are hinged to each other, the middle parts of the two seventh rotating rods are respectively hinged to the middle parts of the two sixth rotating rods, and the two rubber buckles are elastically clamped to the circumferential surfaces of the two fixed rods.

[0014] Preferably, the adjacent end surfaces of the two first connecting plates on the right side are both hinged with a fifth rotating rod, and the two fifth rotating rods are hinged via a rotating shaft limiter.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] In the present solution, when it is necessary to open the opening and closing door mechanism, the opening and closing door mechanism is pulled to separate it from the two rubber buckles. Since the rubber buckles are arranged on the insertion rod, the rubber buckles are prevented from rotating and moving with the opening and closing door mechanism, which is beneficial to prevent the rubber buckles from hitting the ground and being damaged. At the same time, since the rubber buckles are fixedly connected to the surface of the insertion rod and the rubber buckles do not move with the opening and closing door mechanism, the rubber buckles will not rotate and deviate. When it is necessary to close the opening and closing door mechanism, the opening and closing door mechanism is rotated to press the opening and closing door mechanism into the rubber buckles. The rubber buckles are composed of an internal plastic part and an external rubber sleeve. Therefore, the opening and closing door mechanism can be firmly clamped and limited by the deformation of the rubber sleeve outside the rubber buckle.

[0017] In this solution, when the device is unfolded, the insertion rod moves downward in the support tube. Since the rubber buckle is located between the second connecting plate and the support tube, and the surface of the rubber buckle has an elastic rubber sleeve, the collision between the second connecting plate and the support tube can be buffered, which is beneficial to avoid the second connecting plate frequently colliding with the support tube to produce abnormal noise or damage when the device is unfolded and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the first stereogram of the utility model;

[0019] Figure 2 for Figure 1 A magnified image of point A;

[0020] Figure 3 It is a second stereoscopic view of the present utility model.

[0021] In the figure: 1, fixed plate; 2, first rotating rod; 3, first connecting plate; 4, roller; 5, support tube; 6, plug rod; 7, second connecting plate; 8, second rotating rod; 9, third rotating rod; 10, fourth rotating rod; 11, fifth rotating rod; 12, rotating shaft; 13, fixed rod; 14, slide plate; 15, third connecting plate; 16, sixth rotating rod; 17, seventh rotating rod; 18, rubber buckle. DETAILED DESCRIPTION

[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0023] like Figure 1-Figure 3 The structure of a gathering type rear-opening cart shown in the figure comprises four first connecting plates 3, the upper end surfaces of the four first connecting plates 3 are fixedly connected with support tubes 5, the four support tubes 5 are slidably connected with plug rods 6, the upper end surfaces of the four plug rods 6 are fixedly connected with second connecting plates 7, and further comprises:

[0024] A side support mechanism, which is located between the four support tubes 5 and is used to limit and support the three sides of the cart;

[0025] A bottom support mechanism, which is located between the four first connecting plates 3 and is used to limit and support the bottom of the cart;

[0026] An opening and closing door mechanism, which is rotatably hinged to the right end surfaces of the two first connecting plates 3 on the right side, and is used to seal one side of the cart;

[0027] Two rubber clips 18 are fixedly connected to the circumferential surface of the two right-side plug rods 6, and the two rubber clips 18 are respectively located between the two right-side second connecting plates 7 and the two right-side support tubes 5 to buffer the extrusion force between the second connecting plates 7 and the support tubes 5. The two rubber clips 18 are elastically clamped on the opening and closing door mechanism.

[0028] During operation, when the door opening and closing mechanism needs to be opened, the door opening and closing mechanism is pulled to separate the door opening and closing mechanism from the two rubber buckles 18. Since the rubber buckle 18 is arranged on the insertion rod 6, the rubber buckle 18 is prevented from rotating and moving with the door opening and closing mechanism, which is beneficial to prevent the rubber buckle 18 from hitting the ground and being damaged. At the same time, since the rubber buckle 18 is fixedly connected to the surface of the insertion rod 6, the rubber buckle 18 does not move with the door opening and closing mechanism, so the rubber buckle 18 will not rotate and deviate. When the door opening and closing mechanism needs to be closed, the door opening and closing mechanism is rotated to press the door opening and closing mechanism into the rubber buckle 18. The rubber buckle 18 is composed of an internal plastic part and an external rubber sleeve. Therefore, the door opening and closing mechanism can be firmly clamped and limited by the deformation of the rubber sleeve outside the rubber buckle 18.

[0029] When the device is unfolded, the insertion rod 6 moves downward in the support tube 5. Since the rubber buckle 18 is located between the second connecting plate 7 and the support tube 5, and the surface of the rubber buckle 18 has an elastic rubber sleeve, the collision between the second connecting plate 7 and the support tube 5 can be buffered, which is beneficial to avoid the second connecting plate 7 frequently colliding with the support tube 5 to produce abnormal noise or damage when the device is unfolded and used.

[0030] Specifically, the side support mechanism includes four third rotating rods 9, which are respectively hinged on the four second connecting plates 7, the two front third rotating rods 9 and the two rear third rotating rods 9 are respectively hinged to each other, the four first connecting plates 3 are hinged with fourth rotating rods 10, the two front fourth rotating rods 10 and the two rear fourth rotating rods 10 are respectively hinged to each other, the middle parts of the four third rotating rods 9 are respectively hinged to the middle parts of the four fourth rotating rods 10, the two second connecting plates 7 on the left are hinged with second rotating rods 8, the middle parts of the two second rotating rods 8 are hinged to each other, and the other ends of the two second rotating rods 8 are respectively hinged to the two first connecting plates 3 on the left.

[0031] During operation, when the device is unfolded, the four support tubes 5 are moved to the side away from each other, the four first connecting plates 3 move with the four support tubes 5, the four insertion rods 6 slide downward in the four support tubes 5, the four third rotating rods 9 and the four fourth rotating rods 10 rotate, thereby realizing the blocking and limiting of the front and rear sides of the device, the two second rotating rods 8 are rotated and unfolded to realize the limited blocking of the left side of the device, and when the device needs to be stored, the four support tubes 5 are moved to the side close to each other, thereby driving the four third rotating rods 9, the four fourth rotating rods 10 and the four second rotating rods 8 to rotate, thereby realizing the folding and storage of the device.

[0032] Specifically, the bottom support mechanism includes a fixed plate 1, which is located between four first connecting plates 3. Four first rotating rods 2 are hinged on the lower end surface of the fixed plate 1. The other ends of the four first rotating rods 2 are respectively hinged on the four first connecting plates 3. The lower end surfaces of the four first connecting plates 3 are fixedly connected with rollers 4.

[0033] During operation, when the device needs to be unfolded, the fixed plate 1 is pressed downward, and the fixed plate 1 is pressed downward to drive the four first rotating rods 2 to rotate, thereby driving the four first connecting plates 3 to move to the side away from each other, thereby realizing the unfolding of the device. Since the upper end surfaces of the four first rotating rods 2 are against the lower end surface of the fixed plate 1, it is beneficial to avoid excessive rotation of the first rotating rods 2, thereby facilitating the fixed plate 1 and the four first rotating rods 2 to support the bottom of the device. When the device needs to be stored, the fixed plate 1 is pulled upward, and the fixed plate 1 moves upward to drive the four first rotating rods 2 to rotate, thereby driving the four first connecting plates 3 to move to the side close to each other, thereby realizing the storage of the device.

[0034] Specifically, the opening and closing door mechanism includes two fixed rods 13, which are respectively hinged to the right end surfaces of the two first connecting plates 3 on the right side, the upper end surfaces of the two fixed rods 13 are fixedly connected to the third connecting plate 15, the surfaces of the two fixed rods 13 are slidably connected to the slide plates 14, the sixth rotating rods 16 are hinged to the two third connecting plates 15, the adjacent ends of the two sixth rotating rods 16 are hinged to each other, the seven rotating rods 17 are hinged to the two slide plates 14, the adjacent ends of the two seventh rotating rods 17 are hinged to each other, the middle parts of the two seventh rotating rods 17 are respectively hinged to the middle parts of the two sixth rotating rods 16, and the two rubber buckles 18 are elastically clamped to the circumferential surfaces of the two fixed rods 13.

[0035] During operation, when the opening and closing door needs to be opened for loading or unloading, the two fixing rods 13 are pulled to disengage the fixing rods 13 from the rubber buckles 18. When the opening and closing door needs to be closed, the fixing rods 13 are rotated to clamp the fixing rods 13 in the rubber buckles 18 to limit the position. When the device is stored, the two fixing rods 13 move toward the side close to each other, driving the two sixth rotating rods 16 and the two seventh rotating rods 17 to rotate, thereby driving the two slides 14 to slide on the surfaces of the two fixing rods 13, thereby realizing the storage and folding of the opening and closing door in the device.

[0036] Specifically, the adjacent end surfaces of the two first connecting plates 3 on the right side are both hinged with a fifth rotating rod 11 , and the two fifth rotating rods 11 are limitedly hinged by a rotating shaft 12 .

[0037] During operation, when the device needs to be stored, the rotating shaft 12 is pulled upward to drive the two fifth rotating rods 11 to rotate and drive the two fixed rods 13 to move to the side closer to each other. When the device is unfolded, the rotating shaft 12 is pressed downward to drive the two fifth rotating rods 11 to unfold into a straight line to realize the unfolding of the device. After the two fifth rotating rods 11 are in a straight line, they cannot continue to rotate downward, and the bottom corners of the device are supported by the two fifth rotating rods 11.

[0038] Working principle of this utility model:

[0039] When it is necessary to open the opening and closing door mechanism, the opening and closing door mechanism is pulled to separate it from the two rubber buckles 18. Since the rubber buckle 18 is arranged on the insertion rod 6, the rubber buckle 18 is prevented from rotating and moving with the opening and closing door mechanism, which is beneficial to prevent the rubber buckle 18 from hitting the ground and being damaged. At the same time, since the rubber buckle 18 is fixedly connected to the surface of the insertion rod 6, the rubber buckle 18 does not move with the opening and closing door mechanism, so the rubber buckle 18 will not rotate and deviate. When it is necessary to close the opening and closing door mechanism, the opening and closing door mechanism is rotated to press the opening and closing door mechanism into the rubber buckle 18. The rubber buckle 18 is composed of an internal plastic part and an external rubber sleeve. Therefore, the opening and closing door mechanism can be firmly clamped and limited by the deformation of the rubber sleeve outside the rubber buckle 18.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the specification only describe the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected, and the scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A gathering type rear-door trolley structure, comprising four first connecting plates (3), characterized in that: The upper end surfaces of the four first connecting plates (3) are all fixedly connected to support tubes (5), the four supporting tubes (5) are all slidably connected to insertion rods (6), and the upper end surfaces of the four insertion rods (6) are all fixedly connected to second connecting plates (7), and further comprising: A side support mechanism, the side support mechanism is located between the four support tubes (5), and the side support mechanism is used to limit and support three sides of the cart; A bottom support mechanism, the bottom support mechanism being located between the four first connecting plates (3), and the bottom support mechanism being used for limiting and supporting the bottom of the cart; An opening and closing door mechanism, the opening and closing door mechanism being rotatably hinged to the right end surfaces of the two first connecting plates (3) on the right side, the opening and closing door mechanism being used to seal one side of the cart; Two rubber buckles (18), both of which are fixedly connected to the circumferential surface of the two right-side plug rods (6), and the two rubber buckles (18) are respectively located between the two right-side second connecting plates (7) and the two right-side support tubes (5) to achieve buffering of the squeezing force between the second connecting plates (7) and the support tubes (5), and both of which are elastically connected to the door opening and closing mechanism.

2. A gathering type rear door trolley structure according to claim 1, characterized in that: The side support mechanism comprises four third rotating rods (9), the four third rotating rods (9) are respectively hinged on the four second connecting plates (7), the two third rotating rods (9) on the front side and the two third rotating rods (9) on the rear side are respectively hinged to each other, the four first connecting plates (3) are hinged with fourth rotating rods (10), the two fourth rotating rods (10) on the front side and the two fourth rotating rods (10) on the rear side are respectively hinged to each other, the middle parts of the four third rotating rods (9) are respectively hinged to the middle parts of the four fourth rotating rods (10), the two second connecting plates (7) on the left side are respectively hinged with second rotating rods (8), the middle parts of the two second rotating rods (8) are hinged to each other, and the other ends of the two second rotating rods (8) are respectively hinged to the two first connecting plates (3) on the left side.

3. The structure of a gathering type rear door trolley according to claim 1, characterized in that: The bottom support mechanism comprises a fixed plate (1), the fixed plate (1) being located between four first connecting plates (3), the lower end surface of the fixed plate (1) being hinged with four first rotating rods (2), the other ends of the four first rotating rods (2) being hinged to the four first connecting plates (3) respectively, and the lower end surfaces of the four first connecting plates (3) being fixedly connected with rollers (4).

4. The structure of a gathering type rear door trolley according to claim 1, characterized in that: The door opening and closing mechanism comprises two fixed rods (13), the two fixed rods (13) are respectively hinged to the right end surfaces of the two first connecting plates (3) on the right side, the upper end surfaces of the two fixed rods (13) are fixedly connected to the third connecting plate (15), the surfaces of the two fixed rods (13) are slidably connected to the slide plates (14), the two third connecting plates (15) are hinged to the sixth rotating rods (16), the two ends of the six rotating rods (16) close to each other are hinged to each other, the two slide plates (14) are hinged to the seventh rotating rods (17), the two ends of the seven rotating rods (17) close to each other are hinged to each other, the middle parts of the two seventh rotating rods (17) are respectively hinged to the middle parts of the two sixth rotating rods (16), and the two rubber buckles (18) are elastically clamped to the circumferential surfaces of the two fixed rods (13).

5. The structure of a gathering type rear-opening door cart according to claim 1, characterized in that: A fifth rotating rod (11) is hingedly connected to the adjacent end surfaces of the two first connecting plates (3) on the right side, and the two fifth rotating rods (11) are limitedly hingedly connected via a rotating shaft (12).

Images