Locking mechanism for ladder stand device, ladder stand device and engineering equipment

Abstract

The utility model belongs to the technical field of engineering machinery, and particularly relates to a locking mechanism for a ladder stand device, the ladder stand device and engineering equipment, the ladder stand device comprises a mounting frame and a ladder stand piece, a locking hole is formed in the first outer side wall of the ladder stand piece, and the ladder stand piece is arranged on the mounting frame; the locking mechanism comprises a bottom supporting assembly and a locking assembly which are installed on the installation frame, wherein the bottom supporting assembly is located at the bottom of the ladder climbing piece and abuts against the bottom of the ladder climbing piece; the side wall locking assembly and the first outer side wall of the ladder climbing piece are arranged in a spaced mode, and the side wall locking assembly comprises a locking piece capable of being inserted into or separated from the locking hole so as to lock or unlock the ladder climbing piece in the height direction; the first limiting assembly is located at the top of the mounting frame, and the two outer side walls of the ladder climbing piece are limited and clamped by the first limiting assembly; and the second limiting assembly is located at the bottom of the mounting frame, and the second limiting assembly abuts against the second outer side wall of the ladder climbing piece in a limiting mode. By the adoption of the locking mechanism, the ladder climbing piece can be locked more firmly, and abrasion of the ladder climbing piece in the transportation process is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery technology, specifically relating to a locking mechanism for a ladder climbing device, a ladder climbing device, and engineering equipment. Background Technology

[0002] To meet the needs of workers for daily cleaning or maintenance of the mixing drum, blades, and feeding / discharging devices, as well as for continuous monitoring of the mixing drum's material flow, a ladder system is installed at the rear of the mixer truck. This ladder system typically consists of multiple ladder components. Workers can easily access the mixer truck via the ladder system to perform these tasks. The ladder components have two states: in use and retracted. When workers are performing routine cleaning, maintenance, or monitoring of the mixing drum, blades, and feeding / discharging devices, the ladder components are in use; when the mixer truck is in motion, the ladder components are retracted. The ladder components are equipped with a locking mechanism that locks them in place when in the retracted state, preventing them from shaking or falling off due to road bumps or other factors during truck travel, thus improving driving safety.

[0003] The locking mechanism in the prior art usually allows the climbing ladder to have a high degree of freedom. During the transportation of the climbing ladder device with equipment such as mixer trucks, the climbing ladder is prone to shaking and friction, which affects the service life of the climbing ladder and the limiting components, and also generates a lot of noise. Utility Model Content

[0004] The purpose of this utility model is to provide a locking mechanism, a climbing device, and engineering equipment for a climbing ladder device, so as to stably lock the middle ladder of the climbing ladder device.

[0005] To achieve the above objectives, this utility model provides a locking mechanism for a ladder device. The ladder device includes a mounting frame and a ladder component. A locking hole is provided on the first outer side wall of the ladder component. The ladder component is mounted on the mounting frame. The locking mechanism includes components mounted on the mounting frame:

[0006] The bottom support component is located at the bottom of the ladder component and abuts against the bottom of the ladder component;

[0007] A side wall locking assembly is spaced apart from the first outer side wall of the ladder component. The side wall locking assembly includes a locking member that can be inserted into or disengaged from a locking hole to lock or unlock the ladder component in the height direction.

[0008] The first limiting component is located at the top of the mounting bracket, and the first limiting component limits and clamps the two outer side walls of the ladder component;

[0009] The second limiting component is located at the bottom of the mounting bracket and abuts against the second outer side wall of the ladder component.

[0010] In some embodiments, the bottom support assembly includes: a support plate connected to the mounting bracket, the support plate having a first receiving groove for engaging with the bottom roller support of the ladder component; and a buffer plate detachably connected to the support plate and the surfaces of the two plates being in contact, the buffer plate having a second receiving groove for engaging with the bottom roller support of the ladder component, the width of the second receiving groove being smaller than that of the first receiving groove.

[0011] In some embodiments, two opposing buffer surfaces are formed on the two inner sidewalls of the second receiving groove, and the minimum distance between the two buffer surfaces is less than the width of the bottom tread roller.

[0012] In some implementations, there are multiple bottom support components, which are arranged in parallel at intervals.

[0013] In some embodiments, the locking member has a hook-shaped structure, and the sidewall locking assembly further includes: a mounting base mounted on a mounting bracket, a first end of the locking member being hinged to the mounting base, and a second end of the locking member being able to be inserted into or separated from the locking hole; and an elastic member elastically connected between the mounting base and the locking member.

[0014] In some embodiments, the locking member is a rod-shaped structure, and the sidewall locking assembly further includes a guide member mounted on a mounting bracket. The locking member and the guide member are slidably connected, and the first end of the locking member can be inserted into or separated from the locking hole.

[0015] In some embodiments, the first limiting component includes two first abutments, each mounted on the top of the mounting bracket, the two first abutments being located on both sides of the ladder component and abutting against the two outer side walls of the ladder component respectively.

[0016] In some embodiments, the second limiting component includes a second abutting member that abuts against the second outer side wall of the ladder component.

[0017] The second aspect of this utility model provides a ladder climbing device, which includes: a mounting frame; a ladder component disposed on the mounting frame, wherein a locking hole is provided on the first outer side wall of the ladder component; and the aforementioned locking mechanism for the ladder climbing device.

[0018] The third aspect of this utility model provides an engineering device, including the aforementioned ladder device.

[0019] In the above technical solution, the climbing ladder device includes a mounting frame and a climbing ladder component. A locking hole is provided on the first outer side wall of the climbing ladder component. The climbing ladder component is mounted on the mounting frame. The locking mechanism includes a bottom support component, a side wall locking component, a first limiting component, and a second limiting component mounted on the mounting frame. The bottom support component is located at the bottom of the climbing ladder component and abuts against the bottom of the climbing ladder component, restricting the downward movement of the climbing ladder component. The side wall locking component is located on the first outer side wall of the climbing ladder component. The locking member of the side wall locking component can be inserted into or disengaged from the locking hole. When the locking member is inserted into the locking hole, it can restrict the vertical movement of the climbing ladder component. The first limiting component is located at the top of the mounting frame, and the second limiting component is located at the bottom of the mounting frame. The first limiting component limits and clamps the two outer side walls of the climbing ladder component, and the second limiting component limits and abuts against the second outer side wall. With the above-mentioned locking mechanism, both the bottom support component and the side wall locking component can restrict the vertical movement of the climbing ladder component, and they are independent of each other. Even if any one of them fails, it can limit the vertical movement of the climbing ladder component. The first limiting component and the second limiting component can restrict the left and right movement of the climbing ladder component from different heights, making the climbing ladder component more securely locked.

[0020] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0022] Figure 1 This is a first-view structural schematic diagram of the ladder climbing device provided according to an embodiment of the present utility model;

[0023] Figure 2 This is a structural schematic diagram of the ladder climbing device provided according to an embodiment of the present utility model from a second perspective;

[0024] Figure 3 This is a schematic diagram of the support plate provided according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the buffer plate provided according to an embodiment of the present utility model;

[0026] Figure 5 for Figure 1 A magnified view of part A in the middle;

[0027] Figure 6This is a schematic diagram of the sidewall locking assembly provided in another embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures

[0029] 10 Bottom support components

[0030] 11 Support Plate

[0031] 111 First receiving groove

[0032] 12 Buffer Plates

[0033] 121 Second receiving groove

[0034] 122 Buffer Surface

[0035] 20 Sidewall Locking Assembly

[0036] 21 Locking components

[0037] 22 mounting brackets

[0038] 23 Elastic components

[0039] 24 Guide components

[0040] 25 handle parts

[0041] 30 First limit component

[0042] 31 First delivery

[0043] 40 Second limit component

[0044] 41 Second receiving piece

[0045] 50 mounting brackets

[0046] 60 ladder parts

[0047] 61 Bottom tread roller

[0048] 62 Locking Holes Detailed Implementation

[0049] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0050] The locking mechanism, ladder device, and engineering equipment according to the present invention are described below with reference to the accompanying drawings.

[0051] like Figure 1 The diagram shown is a first-view structural schematic of the ladder climbing device provided according to an embodiment of the present invention; as shown... Figure 2The diagram shown is a second-view structural schematic of the ladder climbing device provided according to an embodiment of the present invention. The ladder climbing device provided in this embodiment of the present invention includes a mounting frame 50 and a ladder component 60. The first outer side wall of the ladder component 60 is provided with a locking hole 62, and the ladder component 60 is disposed on the mounting frame 50.

[0052] The locking mechanism provided in this embodiment of the utility model includes components mounted on the mounting bracket 50:

[0053] The bottom support component 10 is located at the bottom of the ladder component 60 and abuts against the bottom of the ladder component 60;

[0054] The side wall locking assembly 20 is spaced apart from the first outer side wall of the ladder member 60. The side wall locking assembly 20 includes a locking member 21 that can be inserted into or disengaged from the locking hole 62 to lock or unlock the ladder member 60 in the height direction.

[0055] The first limiting component 30 is located at the top of the mounting bracket 50, and the first limiting component 30 limits and clamps the two outer side walls of the ladder component 60.

[0056] The second limiting component 40 is located at the bottom of the mounting bracket 50, and the second limiting component 40 abuts against the second outer side wall of the ladder component 60.

[0057] The ladder device includes a mounting frame 50 and a ladder component 60. The ladder component 60 needs to be stably installed on the mounting frame 50 during vehicle operation. In the prior art, the locking mechanism of the ladder component 60 is not securely installed, which can easily cause the ladder component 60 to loosen or cause severe wear between the ladder component 60 and the locking mechanism, affecting the service life of the ladder component 60 and the locking mechanism.

[0058] The locking mechanism provided in this embodiment of the utility model includes a bottom support assembly 10, a side wall locking assembly 20, a first limiting assembly 30, and a second limiting assembly 40. The bottom support assembly 10 is located at the bottom of the ladder member 60 and abuts against the bottom of the ladder member 60, restricting the downward movement of the ladder member 60. The side wall locking assembly 20 is spaced apart from the first outer wall of the ladder member 60 and includes a locking member 21 that can be inserted into or disengaged from a locking hole 62 to lock or unlock the ladder member 60 from a height direction. The first limiting assembly 30 is located at the top of the mounting bracket 50 and can limit and clamp the two outer walls of the ladder member 60 to restrict the horizontal movement of the ladder member 60. The second limiting assembly 40 is located at the bottom of the mounting bracket 50 and abuts against the second outer wall of the ladder member 60, restricting the horizontal movement of the bottom of the ladder member 60. The first limiting component 30 and the second limiting component 40 limit the ladder component 60 in the horizontal direction from different heights, so that the ladder component 60 can be installed more stably on the mounting frame 50.

[0059] With the above-mentioned locking mechanism, the bottom support component 10 and the side wall locking component 20 can each independently limit the vertical movement of the ladder component 60. The first limiting component 30 and the second limiting component 40 can also independently limit the horizontal movement of the ladder component 60. With the above-mentioned locking mechanism, the ladder component 60 can be locked more securely, reducing friction between the ladder component 60 and the locking mechanism, extending the service life of the ladder component 60, and reducing vibration and noise.

[0060] In one embodiment, such as Figure 3 The diagram shown is a structural schematic of the support plate 11 provided according to an embodiment of the present invention; as shown... Figure 4 The diagram shows a schematic of the structure of the buffer plate 12 provided according to an embodiment of the present invention. The bottom support assembly 10 includes a support plate 11 and a buffer plate 12. The support plate 11 is connected to the mounting bracket 50. The support plate 11 has a first receiving groove 111 that supports and engages with the bottom roller 61 of the ladder component 60. The first receiving groove 111 allows the bottom roller 61 of the ladder component 60 to be more stably engaged, reducing the shaking of the ladder component 60. The buffer plate 12 is detachably connected to the support plate 11 and the two plates are in contact. The buffer plate 12 has a second receiving groove 121 that supports and engages with the bottom roller 61 of the ladder component 60. The width of the second receiving groove 121 is smaller than that of the first receiving groove 111. When the bottom roller 61 enters the first receiving groove 111 and the second receiving groove 121, it will contact the inner wall of the second receiving groove 121, avoiding hard friction with the support plate 11 and reducing the service life of the bottom roller 61 and the support plate 11. In one specific embodiment, both the buffer plate 12 and the support plate 11 are provided with multiple mounting holes. The buffer plate 12 and the support plate 11 are fastened together by bolts. When the buffer plate 12 is damaged due to long-term friction or other reasons, the buffer plate 12 can be replaced to reduce the friction between the ladder component 60 and the support plate 11.

[0061] In one embodiment, such as Figure 4 As shown, two opposing buffer surfaces 122 are formed on the two inner sidewalls of the second receiving groove 121. The minimum distance between the two buffer surfaces 122 is less than the width of the bottom step roller 61. The buffer surfaces 122 are interference-fitted with the bottom step roller 61, which enables the bottom step roller 61 to be placed stably in the second receiving groove 121, reducing the vibration caused to the ladder component 60 during transportation.

[0062] In one embodiment, there are multiple bottom support components 10, which are arranged in parallel and spaced apart. The multiple bottom support components 10 can jointly support the climbing member 60, so that the support at the bottom of the climbing member 60 is more stable.

[0063] In one embodiment, such as Figure 5 As shown, Figure 1 A partially enlarged schematic diagram of part A. The locking element 21 has a hook-shaped structure. The sidewall locking assembly 20 also includes a mounting base 22 and an elastic element 23. The mounting base 22 is mounted on the mounting bracket 50. The first end of the locking element 21 is hinged to the mounting base 22, and the second end of the locking element 21 can be inserted into or separated from the locking hole 62. The elastic element 23 is elastically connected between the mounting base 22 and the locking element 21. The mounting base 22 is mounted on the mounting bracket 50 and hinged to the first end of the locking element 21, allowing the second end of the locking element 21 to be inserted into or separated from the locking hole 62. The elastic element 23 is elastically connected between the mounting base 22 and the locking element 21. The elastic element 23 can drive the second end of the locking element 21 to rotate around the hinge point of the first end, so that the locking element 21 is inserted into the locking hole 62 in the normal state; when the locking element 21 is subjected to an external force that compresses the elastic element 23, the locking element 21 can be separated from the locking hole 62. The elastic element 23 can be selected as a compression spring. The aforementioned side wall locking assembly 20 has a simple structure, is easy to adjust, provides stable locking, and has a low cost. In a specific embodiment, the bottom step roller 61 has a cylindrical structure, and a receiving space is provided on the side end of the bottom step roller 61. Using the receiving space of the bottom step roller 61 as the locking hole 62 can reduce the amount of machining required for the ladder component 60, avoid multiple machining operations, and prevent affecting the rigidity and strength of the ladder component 60.

[0064] In one embodiment, such as Figure 6 The diagram shows a sidewall locking assembly 20 according to another embodiment of the present invention. The sidewall locking assembly 20 further includes a guide 24, which is mounted on a mounting bracket 50. The locking member 21 is slidably connected to the guide 24, and the first end of the locking member 21 can be inserted into or separated from the locking hole 62. The guide 24, mounted on the mounting bracket 50, guides the locking member 21 into the locking hole 62. When the ladder component 60 needs to be unlocked, the locking member 21 is moved along the extension direction of the guide 24 to disengage it from the locking hole 62. In a specific embodiment, the locking assembly also includes a handle 25, which is perpendicular to the extension direction of the locking member 21. The handle 25 facilitates the operator's grip, allowing the locking member 21 to be inserted into or disengaged from the locking hole 62. The aforementioned sidewall locking assembly 20 has a simple structure, low precision requirements, and is easy to install and maintain.

[0065] In one embodiment, the first limiting component 30 includes two first abutment members 31, both mounted on the top of the mounting bracket 50. The two first abutment members 31 are located on both sides of the ladder member 60 and abut against the two outer side walls of the ladder member 60 respectively. By using the above-described first limiting component 30, both sides of the ladder member 60 can be abutted, thereby reducing the swaying of the ladder member 60 during transportation.

[0066] In one embodiment, the second limiting component 40 includes a second abutment 41 that abuts against the second outer side wall of the ladder component 60. The second abutment 41 and the two first abutment components 31 are at different heights, enabling the ladder component 60 to be limited at different heights, thus making the limiting of the ladder component 60 more stable. Furthermore, it limits the ladder component 60 at three horizontal positions, and the appropriate number of limiting components also facilitates the installation of the ladder component 60.

[0067] In one embodiment, such as Figure 1 and Figure 2 As shown, a ladder climbing device is provided, including: a mounting bracket 50, a ladder component 60, and the aforementioned locking mechanism for the ladder climbing device. The ladder component 60 is disposed on the mounting bracket 50, and a locking hole 62 is provided on the first outer side wall of the ladder component 60. The aforementioned ladder climbing device can stably lock the ladder component 60, reduce the shaking of the ladder component 60, and extend the service life of the ladder component 60, the mounting bracket 50, and the locking mechanism.

[0068] In one embodiment, an engineering device is provided, which includes the aforementioned ladder device. This ladder device exhibits low vibration during transportation, reducing vibration noise and improving the operator's experience.

[0069] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A locking mechanism for a ladder climbing device, characterized in that, The ladder device includes a mounting frame (50) and a ladder component (60). The first outer side wall of the ladder component (60) is provided with a locking hole (62). The ladder component (60) is disposed on the mounting frame (50). The locking mechanism includes components mounted on the mounting frame (50): The bottom support assembly (10) is located at the bottom of the ladder component (60) and abuts against the bottom of the ladder component (60); A side wall locking assembly (20) is spaced apart from the first outer side wall of the ladder member (60). The side wall locking assembly (20) includes a locking member (21) that can be inserted into or disengaged from the locking hole (62) to lock or unlock the ladder member (60) in the height direction. The first limiting component (30) is located at the top of the mounting bracket (50), and the first limiting component (30) limits and clamps the two outer side walls of the ladder component (60); The second limiting component (40) is located at the bottom of the mounting bracket (50), and the second limiting component (40) abuts against the second outer side wall of the ladder component (60).

2. The locking mechanism for a ladder climbing device according to claim 1, characterized in that, The bottom support assembly (10) includes: The support plate (11) is connected to the mounting bracket (50), and the support plate (11) has a first receiving groove (111) that is supported and engaged with the bottom tread roller (61) of the ladder component (60). The buffer plate (12) is detachably connected to the support plate (11) and the two plates are in contact. The buffer plate (12) has a second receiving groove (121) for the bottom step roller (61) of the ladder component (60) to be supported and engaged. The width of the second receiving groove (121) is smaller than that of the first receiving groove (111).

3. The locking mechanism for a ladder climbing device according to claim 2, characterized in that, Two opposing buffer surfaces (122) are formed on the two inner sidewalls of the second receiving groove (121), and the minimum distance between the two buffer surfaces (122) is less than the width of the bottom tread roller (61).

4. The locking mechanism for a ladder climbing device according to any one of claims 1 to 3, characterized in that, The number of bottom support components (10) is multiple, and the multiple bottom support components (10) are arranged in parallel at intervals.

5. The locking mechanism for a ladder climbing device according to claim 1, characterized in that, The locking element (21) has a hook-shaped structure, and the sidewall locking assembly (20) further includes: Mounting base (22) is mounted on mounting bracket (50). The first end of the locking member (21) is hinged to the mounting base (22). The second end of the locking member (21) can be inserted into the locking hole (62) or separated from the locking hole (62). The elastic element (23) is elastically connected between the mounting base (22) and the locking element (21).

6. The locking mechanism for a ladder climbing device according to claim 1, characterized in that, The locking member (21) is a rod-shaped structure, and the sidewall locking assembly (20) further includes: The guide (24) is mounted on the mounting bracket (50), and the locking member (21) is slidably connected to the guide (24). The first end of the locking member (21) can be inserted into the locking hole (62) or separated from the locking hole (62).

7. The locking mechanism for a ladder climbing device according to claim 1, characterized in that, The first limiting component (30) includes two first abutment members (31) that are both mounted on the top of the mounting bracket (50). The two first abutment members (31) are located on both sides of the ladder member (60) and abut against the two outer side walls of the ladder member (60).

8. The locking mechanism for a ladder climbing device according to claim 1, characterized in that, The second limiting component (40) includes a second abutting member (41) that abuts against the second outer side wall of the ladder component (60).

9. A ladder climbing device, characterized in that, include: Mounting bracket (50); A ladder component (60) is disposed on the mounting bracket (50), and a locking hole (62) is provided on the first outer side wall of the ladder component (60). The locking mechanism for a ladder climbing device according to any one of claims 1 to 8.

10. An engineering device, characterized in that, Includes the ladder climbing device according to claim 9.

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