Auxiliary vehicle ladder with locking structure and tractor

Abstract

The utility model relates to an auxiliary box step with a locking structure and a tractor, the auxiliary box step comprises an auxiliary box step body, a reinforcing mechanism, a positioning mechanism and a return mechanism, the auxiliary box step body can rotate horizontally, and the reinforcing mechanism is installed on the auxiliary box step body; the positioning mechanism is installed on the auxiliary vehicle ladder body and used for positioning the auxiliary vehicle ladder body when the auxiliary vehicle ladder body is folded. The return mechanism is installed on the auxiliary vehicle ladder body and used for connecting the auxiliary vehicle ladder body with the tractor frame and enabling the auxiliary vehicle ladder body to be unfolded for use when the positioning mechanism loosens the auxiliary vehicle ladder body. The device has the beneficial effects that the structure is simple, the design is reasonable, and the gas spring is additionally arranged, so that the auxiliary vehicle ladder can be effectively supported; meanwhile, the whole auxiliary box step is reinforced, so that the service life of the whole box step is prolonged, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, and particularly relates to a sub-ladder with a locking structure and a tractor. Background Art

[0002] A tractor is a self-propelled power machine used to tow and drive working machinery to complete various mobile operations. It consists of systems or devices such as an engine, transmission, running, steering, hydraulic suspension, power output, electrical instrument, driving control, and towing, and is mainly used in fields such as agriculture, transportation, water conservancy, road engineering, and construction. The appearance of tractors has greatly reduced the labor burden and improved work efficiency.

[0003] The sub-ladder is a commonly used component on tractors, but the current sub-ladders have the following defects: 1. The sub-ladder has no locking structure and cannot be fixed after being opened; 2. The existing sub-ladder has low structural strength. Summary of the Utility Model

[0004] The utility model provides a sub-ladder with a locking structure and a tractor, aiming to solve the problems in the prior art.

[0005] The technical solution for the utility model to solve the above technical problems is as follows:

[0006] A sub-ladder with a locking structure includes a sub-ladder body, a strengthening mechanism, a positioning mechanism, and a return mechanism. The sub-ladder body is rotatably arranged horizontally. The strengthening mechanism is installed on the sub-ladder body. The positioning mechanism is installed on the sub-ladder body and is used to position the sub-ladder body when the sub-ladder body is folded. The return mechanism is installed on the sub-ladder body, used to connect the sub-ladder body to the tractor frame, and used to unfold the sub-ladder body for use when the positioning mechanism releases the sub-ladder body.

[0007] The beneficial effects of the utility model are as follows: The structure of the utility model is simple and reasonably designed. The return mechanism is added, which can effectively support the sub-ladder, and the positioning mechanism can be used to position the sub-ladder. At the same time, the entire sub-ladder is strengthened by the strengthening mechanism, which extends the service life of the entire ladder and reduces costs.

[0008] Based on the above technical solutions, the utility model can be further improved as follows.

[0009] Further, the positioning mechanism includes at least one positioning plate. One end of the positioning plate is fixedly connected to the sub-ladder body, and a positioning hole is provided on the other side. A positioning pin is installed in the positioning hole.

[0010] The beneficial effects of adopting the above further solution are as follows: the structure is simple, the design is reasonable, the positioning plate is used to position the sub-ladder body when the sub-ladder body is retracted, saving space and being convenient to use.

[0011] Furthermore, each of the positioning plates is in the shape of a long strip plate.

[0012] The beneficial effects of adopting the above further solution are as follows: the structure is simple, the shape of the positioning plate is reasonably designed, and the assembly is convenient.

[0013] Furthermore, the positioning mechanism includes two of the positioning plates, and the two positioning plates are relatively fixedly installed on both sides of the sub-ladder body.

[0014] The beneficial effects of adopting the above further solution are as follows: the number of the positioning plates is reasonably designed to ensure the stability of the sub-ladder positioning.

[0015] Furthermore, the return mechanism includes a gas spring, one end of the gas spring is rotatably connected to the lower end of the sub-ladder body, and the other end is used for rotatably connecting to the tractor frame.

[0016] The beneficial effects of adopting the above further solution are as follows: the structure is simple, the design is reasonable, the gas spring can be used to support the sub-ladder, and it is convenient to use.

[0017] Furthermore, the positioning plates are distributed at the upper end of the sub-ladder body.

[0018] The beneficial effects of adopting the above further solution are as follows: the structure is simple, the design is reasonable, the position of the positioning plate is reasonably designed, the positioning effect is better, and it can cooperate effectively with the gas spring.

[0019] Furthermore, the strengthening mechanism includes at least one strengthening plate, and each strengthening plate is fixedly installed on the inner surface of the upper end of the sub-ladder body.

[0020] The beneficial effects of adopting the above further solution are as follows: the structure is simple, the design is reasonable, and the strengthening plate can be used to increase the strength of the entire sub-ladder and extend the service life of the sub-ladder.

[0021] Furthermore, the strengthening mechanism includes two strengthening plates, and the two strengthening plates are relatively fixedly installed on both sides of the inner surface of the upper end of the sub-ladder body.

[0022] The beneficial effects of adopting the above further solution are as follows: the structure is simple, the design is reasonable, the number of the strengthening plates is reasonably designed, and the strength of the entire sub-ladder can be further increased, and the service life of the sub-ladder can be extended.

[0023] Furthermore, the strengthening mechanism further includes a cross strengthening frame, and the cross strengthening frame is fixedly installed on the inner surface of the upper end of the sub-ladder body.

[0024] The beneficial effects of adopting the above further solution are that the structure is simple and reasonable in design. The setting of the cross reinforcing frame can further increase the strength of the entire auxiliary ladder and further extend the service life of the auxiliary ladder.

[0025] The utility model also relates to a tractor, including the auxiliary ladder with a locking structure as described above.

[0026] The beneficial effects of adopting the above further solution are that the utility model also provides a tractor. The tractor has a simple structure and reasonable design. A return mechanism is added, which can effectively support the auxiliary ladder, and the positioning mechanism can position the auxiliary ladder; at the same time, the entire auxiliary ladder is strengthened by the strengthening mechanism, extending the service life of the entire ladder and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 is a front view of the utility model;

[0029] Figure 3 is a partial structural schematic diagram of the utility model;

[0030] Figure 4 is a perspective view of the utility model.

[0031] In the drawings, the list of components represented by each reference numeral is as follows:

[0032] 1, auxiliary ladder body; 2, positioning plate; 3, positioning pin; 4, gas spring; 5, reinforcing plate; 6, cross reinforcing frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] It should be noted that, without conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0036] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0037] Embodiment 1

[0038] As Figures 1 to 4 shown, this embodiment provides a secondary ladder with a locking structure, which includes a secondary ladder body 1, a strengthening mechanism, a positioning mechanism, and a return mechanism. The secondary ladder body 1 is rotatably arranged horizontally. The strengthening mechanism is installed on the secondary ladder body 1; the positioning mechanism is installed on the secondary ladder body 1 and is used to position the secondary ladder body 1 when the secondary ladder body 1 is folded up; the return mechanism is installed on the secondary ladder body 1 and is used to connect the secondary ladder body 1 with the tractor frame and is used to unfold the secondary ladder body 1 for use when the positioning mechanism releases the secondary ladder body 1.

[0039] The structure of this embodiment is simple and reasonably designed. The return mechanism is added, which can effectively support the secondary ladder, and the positioning mechanism can be used to position the secondary ladder. At the same time, the entire secondary ladder is strengthened by the strengthening mechanism, which prolongs the service life of the entire ladder and reduces costs.

[0040] Embodiment 2

[0041] Based on Embodiment 1, in this embodiment, the positioning mechanism includes at least one positioning plate 2. One end of the positioning plate 2 is fixedly connected to the sub-ladder body 1, and a positioning hole is provided on the other side. A positioning pin 3 is installed in the positioning hole.

[0042] This solution has a simple structure and a reasonable design. The positioning plate 2 is used to position the sub-ladder body 1 when the sub-ladder body 1 is folded, saving space and being convenient to use.

[0043] Based on the above solution, the above positioning plate 2 is fixedly connected to the sub-ladder body 1 by a plurality of bolts.

[0044] In addition, a jack that can communicate with the positioning hole is provided at the corresponding position on the tractor frame. When the jack communicates with the positioning hole, the positioning pin 3 can be manually inserted into the above jack and the positioning hole to fix the sub-ladder body 1.

[0045] Embodiment 3

[0046] Based on Embodiment 2, in this embodiment, each of the positioning plates 2 has a long strip-shaped plate structure.

[0047] This solution has a simple structure, a reasonable shape design of the positioning plate 2, and is convenient for assembly.

[0048] Preferably, in this embodiment, the positioning holes on each positioning plate 2 are preferably long strip-shaped hole bodies, which extend along the length direction of the positioning plate 2.

[0049] Embodiment 4

[0050] Based on any one of Embodiments 2 to 3, in this embodiment, the positioning mechanism includes two of the positioning plates 2, and the two positioning plates 2 are relatively fixedly installed on both sides of the sub-ladder body 1.

[0051] The number of the positioning plates 2 is reasonably designed to ensure the stability of the sub-ladder positioning.

[0052] Embodiment 5

[0053] Based on any one of Embodiments 2 to 4, in this embodiment, the return mechanism includes a gas spring 4. One end of the gas spring 4 is rotatably connected to the lower end of the sub-ladder body 1, and the other end is used for rotatably connecting to the tractor frame.

[0054] This solution has a simple structure and a reasonable design. The gas spring 4 can be used to support the sub-ladder, which is convenient to use.

[0055] Embodiment 6

[0056] Based on Embodiment 5, in this embodiment, the positioning plates 2 are distributed at the upper end of the sub-ladder body 1.

[0057] This solution has a simple structure and a reasonable design. The position of the positioning plate 2 is reasonably designed, with a better positioning effect, and it can cooperate effectively with the gas spring 4.

[0058] Example 7

[0059] Based on the above embodiments, in this embodiment, the strengthening mechanism includes at least one strengthening plate 5, and each strengthening plate 5 is fixedly installed on the inner surface of the upper end of the auxiliary ladder body 1.

[0060] This solution has a simple structure and a reasonable design. By using the strengthening plate 5, the strength of the entire auxiliary ladder can be increased, and the service life of the auxiliary ladder can be extended.

[0061] Example 8

[0062] Based on Example 7, in this embodiment, the above-mentioned strengthening mechanism includes two strengthening plates 5, and the two strengthening plates 5 are fixedly installed relatively on both sides of the inner surface of the upper end of the auxiliary ladder body 1.

[0063] This solution has a simple structure and a reasonable design. The number of the strengthening plates 5 is reasonably designed, which can further increase the strength of the entire auxiliary ladder and extend the service life of the auxiliary ladder.

[0064] Preferably, in this embodiment, the upper end of the auxiliary ladder body 1 is a 90° right angle.

[0065] In addition, the two strengthening plates 5 are preferably triangular plates, which are respectively distributed on both sides of the upper end of the auxiliary ladder body 1, and the two right-angle sides of each strengthening plate 5 are respectively fixedly connected to the two sides of the right angle at the upper end of the auxiliary ladder body 1.

[0066] Example 9

[0067] Based on any one of Examples 7 to 8, in this embodiment, the strengthening mechanism further includes a cross strengthening frame 6, and the cross strengthening frame 6 is fixedly installed on the inner surface of the upper end of the auxiliary ladder body 1.

[0068] This solution has a simple structure and a reasonable design. The setting of the cross strengthening frame 6 can further increase the strength of the entire auxiliary ladder and further extend the service life of the auxiliary ladder.

[0069] Preferably, in this embodiment, the above-mentioned cross strengthening frame 6 is preferably arranged between the two strengthening plates 5.

[0070] Example 10

[0071] Based on the above embodiments, this embodiment also provides a tractor, including the auxiliary ladder with a locking structure as described above.

[0072] The present embodiment also provides a tractor with a simple structure and reasonable design. A return mechanism is added to effectively support the auxiliary vehicle ladder, and the auxiliary vehicle ladder can be positioned by a positioning mechanism. At the same time, the entire auxiliary vehicle ladder is reinforced by a reinforcing mechanism, which extends the service life of the entire vehicle ladder and reduces costs.

[0073] The operating principle of the utility model is as follows:

[0074] When not in use, the auxiliary vehicle ladder body 1 is folded and positioned by the positioning pin 3, and the gas spring 4 is in a compressed state;

[0075] When in use, the positioning pin 3 is manually pulled out, and the gas spring 4 is stretched to open the auxiliary vehicle ladder body 1 for use.

[0076] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0077] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sub-step ladder with a locking structure, characterized in that: It includes a secondary ladder body (1), a strengthening mechanism, a positioning mechanism and a return mechanism. The secondary ladder body (1) is arranged to be horizontally rotatable. The strengthening mechanism is installed on the secondary ladder body (1); the positioning mechanism is installed on the secondary ladder body (1) and is used to position the secondary ladder body (1) when the secondary ladder body (1) is folded up; the return mechanism is installed on the secondary ladder body (1) and is used to connect the secondary ladder body (1) with the tractor frame and is used to unfold the secondary ladder body (1) for use when the positioning mechanism releases the secondary ladder body (1).

2. The auxiliary ladder with a locking structure according to claim 1, characterized in that: The positioning mechanism includes at least one positioning plate (2). One end of the positioning plate (2) is fixedly connected to the secondary ladder body (1), and a positioning hole is provided on the other side. A positioning pin (3) is installed in the positioning hole.

3. The auxiliary ladder with a locking structure according to claim 2, characterized in that: Each of the positioning plates (2) is in a strip-shaped plate structure.

4. The auxiliary ladder with a locking structure according to claim 2, characterized in that: The positioning mechanism includes two of the positioning plates (2), and the two positioning plates (2) are relatively fixedly installed on both sides of the secondary ladder body (1).

5. The auxiliary ladder with a locking structure according to claim 2, wherein: The return mechanism includes a gas spring (4). One end of the gas spring (4) is rotatably connected to the lower end of the secondary ladder body (1), and the other end is used to rotatably connect to the tractor frame.

6. The auxiliary ladder with a locking structure according to claim 5, characterized in that: The positioning plates (2) are distributed at the upper end of the secondary ladder body (1).

7. The auxiliary ladder with a locking structure according to any one of claims 1-6, characterized in that: The strengthening mechanism includes at least one strengthening plate (5), and each strengthening plate (5) is fixedly installed on the inner surface of the upper end of the secondary ladder body (1).

8. The auxiliary ladder with a locking structure according to claim 7, wherein: The strengthening mechanism includes two strengthening plates (5), and the two strengthening plates (5) are relatively fixedly installed on both sides of the inner surface of the upper end of the secondary ladder body (1).

9. The auxiliary ladder with a locking structure according to claim 7, characterized in that: The strengthening mechanism further includes a cross strengthening frame (6), and the cross strengthening frame (6) is fixedly installed on the inner surface of the upper end of the secondary ladder body (1).

10. A tractor, characterized in that: It includes a secondary ladder with a locking structure according to any one of claims 1-9.

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