Support frame capable of being quickly unfolded and folded and high-altitude operation equipment

Abstract

The supporting frame comprises guide rail plates arranged on a vehicle body and a movable support movably arranged between the guide rail plates, the guide rail plates are provided with first guide grooves and second guide grooves communicating with the first guide grooves, the second guide grooves are located on the upper sides of the first guide grooves, and the movable support is arranged between the first guide grooves and the second guide grooves. Clamping grooves are formed in the lower groove walls of the first guide groove and the second guide groove, at least two protruding clamping blocks are arranged on the side wall of one side of the movable support, and the clamping blocks stretch into and are movably arranged in the first guide groove and the second guide groove; when the movable bracket moves to a first position relative to the guide rail plate, the clamping blocks are respectively clamped with the clamping grooves in the first guide groove and the second guide groove; and when the movable bracket moves to a second position relative to the guide rail plate, the clamping block is clamped with the clamping groove of the first guide groove. The supporting frame can be rapidly unfolded to support the accessory, and the accessory is prevented from impacting forwards under the action of inertia to damage the structure; and meanwhile, the support frame can be quickly folded to reduce the size of the whole vehicle.

Description

Technical Field

[0001] The present application relates to the technical field of aerial work equipment, and in particular to a support frame and aerial work equipment that can be quickly deployed and retracted. Background Art

[0002] Existing aerial work platforms feature a hoisting mechanism mounted on the chassis, along with a main boom system. This system includes a telescopic boom and detachable attachments mounted at the end of the boom for aerial work or pruning. When the attachments are retracted, they require a supporting structure on the chassis to mitigate swing fatigue during the vehicle's movement. However, the existing supporting structure is large, potentially impacting the vehicle's overall dimensions, as it is limited in flexibility and inconvenient to use.

[0003] Therefore, in response to the above technical problems, how to improve the flexibility of the bearing mechanism and reduce the impact on the size of the entire vehicle is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this application is to provide a support frame that can be quickly deployed and folded. The support frame can be quickly deployed to support accessories to prevent the accessories from impacting forward under the action of inertia and damaging the structure; at the same time, the support frame can be quickly folded to reduce the size of the entire vehicle.

[0005] To achieve the above-mentioned object, the present application provides a support frame that can be quickly deployed and retracted, comprising a guide rail plate provided on a vehicle body and a movable bracket movably provided between the guide rail plates, the guide rail plates being symmetrically provided on both sides of the movable bracket, a first guide groove and a second guide groove communicating with the first guide groove being provided on the guide rail plate, the second guide groove being located above the first guide groove, and a clamping groove being provided on the lower groove wall of the first guide groove and the second guide groove, at least two protruding clamping blocks being provided on a side wall of one side of the movable bracket, the clamping blocks extending into and movably provided in the first guide groove and the second guide groove;

[0006] When the movable bracket moves to the first position relative to the guide rail plate, the clamping block is clamped with the clamping slots on the first guide slot and the second guide slot respectively;

[0007] When the movable bracket moves to the second position relative to the guide rail plate, the clamping block is clamped with the clamping slot of the first guide slot.

[0008] Preferably, the first guide groove is a strip-shaped groove, the second guide groove is an arc-shaped groove, the first guide groove is horizontally arranged, one end of the second guide groove is connected to the first guide groove, and the other end of the second guide groove is located directly above the first guide groove and is provided with the clamping groove.

[0009] Preferably, the clamping blocks are symmetrically distributed on both sides of the movable support, and the side wall of the movable support is arranged close to the corresponding guide rail plate.

[0010] Preferably, the guide rail plate is vertically arranged, the side wall of the movable support fits with the vertical plane of the corresponding guide rail plate, and the movable support is in contact with and slides on the guide rail plate, or,

[0011] There is a gap between the side wall of the movable support and the vertical plane of the corresponding guide rail plate, and the protruding length of the clamping block is greater than twice the gap.

[0012] Preferably, in the second position, one of the clamping blocks is clamped with the clamping groove of the first guide groove, and the other clamping block abuts against the groove wall of the first guide groove in the width direction.

[0013] Preferably, the clamping groove includes a U-shaped groove with a rectangular groove at the upper part and a semi-cylindrical groove at the lower part, the clamping block is a cylindrical block, the width of the rectangular groove is greater than or equal to the diameter of the cylindrical block, and the groove profile of the semi-cylindrical groove matches the column profile of the cylindrical block.

[0014] Preferably, there are at least two clamping grooves on the first guide groove, and when one of the clamping blocks is clamped with the clamping groove on the arc-shaped groove, the other clamping block can be clamped with any one of the clamping grooves on the first guide groove.

[0015] Preferably, the movable support is a square frame, and the clamping blocks are located on two side walls at the end of the movable support.

[0016] An aerial work equipment includes a vehicle body and a telescopic boom arranged on the vehicle body, and further includes a support frame arranged on the vehicle body, and the support frame is the support frame for rapid unfolding and folding described above.

[0017] Preferably, a vertical fixed support is provided at the tail of the vehicle body, the support frame is arranged on the fixed support, when the support frame is in the unfolded state, one end of the movable support on the support frame moves away from the fixed support direction and abuts against the accessory at the end of the telescopic boom; when the support frame is in the folded state, the movable support moves towards the fixed support direction.

[0018] Compared with the above background art, the present application sets a first guide groove and a second guide groove on the guide rail plate. There are clamping grooves in the first guide groove and the second guide groove, and clamping blocks are set on the movable bracket. The clamping blocks can be movably arranged in the guide groove structure. Thus, when the movable bracket moves relative to the guide rail plate to the first position, that is, the retracted state of the movable bracket, the clamping blocks can be respectively clamped with the clamping grooves in the first guide groove and the second guide groove, and the clamping groove on the second guide groove is located above the first guide groove, so that the movable bracket is vertically retracted, reducing the overall size of the vehicle body; when the movable bracket moves relative to the guide rail plate to the second position, that is, the unfolded state of the movable bracket, the clamping block can be clamped with the first guide groove, and at the same time, under the limiting action of the first guide groove, the movable bracket is arranged in a horizontal or nearly horizontal state, thus forming the unfolded state of the movable bracket. The movable bracket of the present application can be manually operated to move along the guide groove of the guide rail plate, and the unfolding and retraction of the movable bracket can be easily completed manually without the aid of any other tools. While reducing the length dimension of the vehicle body's outer shape, the safety is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0020] Figure 1 Structural schematic diagram of the support frame for quick unfolding and retraction provided by the embodiment of the present application;

[0021] Figure 2 Structural schematic diagram of the retracted state of the support frame for quick unfolding and retraction provided by the embodiment of the present application;

[0022] Figure 3 Structural schematic diagram of the guide rail plate and the movable bracket when the support frame for quick unfolding and retraction provided by the embodiment of the present application is in the retracted state;

[0023] Figure 4 Structural schematic diagram of the unfolded state of the support frame for quick unfolding and retraction provided by the embodiment of the present application.

[0024] In the figure:

[0025] 1 - fixed bracket; 2 - guide rail plate; 3 - movable bracket; 4 - vehicle body; 5 - telescopic boom; 21 - first guide groove; 22 - second guide groove; 23 - clamping groove; 31 - clamping block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0027] It should be noted that in this embodiment, the orientation or positional relationship indicated by "up", "down", "front", "back", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application 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. Therefore, it should not be construed as a limitation to the present application. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] Please refer to Figure 1 , in this embodiment, a support frame that can be quickly deployed and retracted is provided. The support frame includes a guide rail plate 2 and a movable bracket 3 provided on a vehicle body 4. The guide rail plate 2 is fixedly provided on the vehicle body 4 to provide a stable support structure for the movable bracket 3. A guide groove is provided on the guide rail plate 2, and the movable bracket 3 is movably arranged under the limitation of the guide groove.

[0030] Specifically, the number of the guide rail plates 2 is two, and they are symmetrically arranged on both sides of the movable bracket 3. The above-mentioned guide grooves include a first guide groove 21 and a second guide groove 22. One end of the first guide groove 21 and the second guide groove 22 is communicated with each other. On the basis of their communication, the other end of the second guide groove 22 also biases towards the side where the first guide groove 21 is located, so that the other end of the second guide groove 22 is located above the first guide groove 21. At the same time, clamping grooves 23 are opened on the lower groove walls of the first guide groove 21 and the second guide groove 22, and at least two protruding clamping blocks 31 are provided on the side wall of one side of the movable bracket 3. The clamping blocks 31 extend into and are movably arranged in the first guide groove 21 and the second guide groove 22.

[0031] It should be noted that, since the movable bracket 3 is movably arranged relative to the guide rail plate 2, during the movement of the movable bracket 3, there is a first position, that is, the retracted state, where the clamping blocks 31 are respectively clamped with the clamping grooves 23 on the first guide groove 21 and the second guide groove 22. Since the second guide groove 22 is arranged above the first guide groove 21, when the clamping blocks 31 are respectively clamped with the clamping grooves 23 on the first guide groove 21 and the second guide groove 22, the two clamping blocks 31 will be vertically distributed, so that the movable bracket 3 is also vertically arranged to form a retracted state. On the contrary, when the movable bracket 3 moves relative to the guide rail plate 2 to the second position, that is, the deployed state, the clamping block 31 can be clamped with the clamping groove 23 on the first guide groove 21. At this time, since both clamping blocks 31 are located in the first guide groove 21, a deployed state substantially consistent with the orientation of the first guide groove 21 will be formed.

[0032] In summary of the above embodiments, in the present application, the first guide groove 21 and the second guide groove 22 are arranged on the guide rail plate 2, the clamping grooves 23 are arranged in the first guide groove 21 and the second guide groove 22, and the clamping blocks 31 are arranged on the movable bracket 3. The clamping blocks 31 can be movably arranged in the guide groove structure. Thus, when the movable bracket 3 moves relative to the guide rail plate 2 to the first position, that is, the retracted state of the movable bracket 3 as shown in Figure 2 , the clamping blocks 31 can be respectively clamped with the clamping grooves 23 in the first guide groove 21 and the second guide groove 22, and the clamping groove 23 on the second guide groove 22 is located above the first guide groove 21, so that the movable bracket 3 is vertically retracted, reducing the overall size of the vehicle body 4; when the movable bracket 3 moves relative to the guide rail plate 2 to the second position, that is, the deployed state of the movable bracket 3 as shown in Figure 4 , the clamping block 31 can be clamped with the first guide groove 21. At the same time, under the limiting action of the first guide groove 21, the movable bracket 3 is arranged in a horizontal or nearly horizontal state, so as to form the deployed state of the movable bracket 3. The movable bracket 3 of the present application can be manually operated to move along the guide groove of the guide rail plate 2, and the deployment and retraction of the movable bracket 3 can be easily completed manually without the aid of any other tools. While reducing the external length dimension of the vehicle body 4, the safety is improved.

[0033] It should be noted that, please refer to Figure 3 , the first guide groove 21 is a strip-shaped groove, the second guide groove 22 is an arc-shaped groove, and at the same time, the first guide groove 21 can be arranged horizontally or nearly horizontally, so that the movable bracket 3 is in a nearly horizontal state when in the deployed state, and then a deployed support structure is formed at the rear side of the vehicle body 4 to support the attachments.

[0034] The arc-shaped groove is provided to change the posture of the movable bracket 3. That is, when the movable bracket 3 changes from the unfolded state to the folded state, the movement path of one of the clamping blocks 31 is changed through the arc-shaped groove, while the other clamping block 31 still remains in the first guide groove 21. At this time, as the clamping block 31 in the arc-shaped groove continues to move until it moves into the clamping groove 23, the movable bracket 3 in a nearly vertical folded state will be formed.

[0035] Further, one end of the second guide groove 22 communicates with the first guide groove 21, and the other end of the second guide groove 22 is located directly above the first guide groove 21 and is provided with a clamping groove 23. That is, the clamping groove 23 in the second guide groove 22 is located at its end. When one clamping block 31 on the movable bracket 3 is clamped with the clamping groove 23 in the second guide groove 22, the other clamping block 31 on the movable bracket will also be clamped with the clamping groove 23 in the first guide groove 21 through movement, so as to limit the clamping block 31 in the horizontal direction by the clamping groove 23.

[0036] In addition, as mentioned above, the clamping grooves 23 are respectively provided on the lower groove walls of the first guide groove 21 and the second guide groove 22. Therefore, to satisfy that the clamping block 31 can be clamped with the clamping groove 23, the opening of the clamping groove 23 is naturally upward. Therefore, after the clamping groove 23 limits the clamping block 31 in the horizontal direction, the movable bracket 3 uses its own gravity to stably clamp the clamping block 31 with the clamping groove 23, thus forming a stable folded state. Of course, when in the folded state, the movable bracket 3 can be lifted by an external force to make the clamping blocks 31 disengage from the clamping grooves 23 on the first guide groove 21 and the second guide groove 22 respectively. At this time, the clamping blocks 31 can move in the first guide groove 21 and the second guide groove 22 again.

[0037] To ensure the movement stability of the movable bracket 3 when changing states, a plurality of clamping blocks 31 are symmetrically distributed on the side walls of both sides of the movable bracket 3, and the guide plates 2 on both sides of the movable bracket 3 are symmetrically arranged. Then, the movement paths of the clamping blocks 31 on both sides of the movable bracket 3 on the two guide plates 2 are the same, so as to ensure that both sides of the movable bracket 3 can move synchronously, thereby improving the stability and synchronism of the movable bracket 3 during the movement process.

[0038] At the same time, to ensure the movement effect of the movable bracket 3, it is necessary to set the side wall of the movable bracket 3 as close to the guide plate 2 as possible, so as to reduce the interval between the two. In some embodiments, the two guide plates 2 are vertically arranged, the opposite surfaces of the guide plates 2 are vertical planes, and the side walls on both sides of the movable bracket 3 are respectively attached to the vertical planes of the two guide plates 2, so as to form a contact sliding. The guide plate 2 can play a certain limiting role in the movement of the interactive bracket, but there is a certain sliding friction.

[0039] Alternatively, there is a certain interval between the side wall of the movable support 3 and the vertical plane of the corresponding guide rail plate 2. This interval should be as small as possible so that the movable support 3 is separated from the guide rail plate 2 to avoid sliding friction between the two and improve the movement sensitivity of the movable support 3. However, it is necessary to ensure that the protruding length of the clamping block 31 is greater than twice the interval to ensure that the clamping block 31 cannot be disengaged from the guide groove.

[0040] It should be noted that when the movable support 3 moves relative to the guide rail plate 2 to the second position, that is, in the unfolded state, one of the clamping blocks 31 is clamped with the clamping groove 23 in the first guide groove 21, and the other clamping block 31 abuts against the groove wall of the first guide groove 21 in the width direction. Thus, different clamping blocks 31 on the movable support 3 can be respectively clamped with the clamping groove 23 on the first guide groove 21 and the first guide groove 21 for limit clamping to form a stable support structure and ensure that the movable support 3 maintains a stable support state in the unfolded state.

[0041] Please refer to Figure 3 , the clamping groove 23 includes a U-shaped groove structure with a rectangular groove in the upper part and a semi-cylindrical groove in the lower part, and the clamping block 31 is correspondingly arranged as a cylindrical block; the rectangular groove is correspondingly arranged at the opening position of the clamping groove 23. At the same time, to ensure that the clamping block 31 can smoothly enter the clamping groove 23 and be clamped with it, the groove width of the rectangular groove should be greater than or equal to the diameter of the cylindrical block, and the groove contour of the semi-cylindrical groove matches the column contour of the cylindrical block. Thus, when the cylindrical block is located in the semi-cylindrical groove, a stable clamping effect can be formed. And the setting of the rectangular groove can also increase the overall groove depth of the clamping groove 23 to prevent the situation where the clamping block 31 accidentally disengages from the clamping groove 23.

[0042] In addition, there are at least two clamping grooves 23 on the first guide groove 21. And when one clamping block 31 is clamped with the clamping groove 23 on the arc-shaped groove, the other clamping block 31 can be clamped with any one of the clamping grooves 23 on the first guide groove 21, so as to adjust the folding angle of the movable support 3 to adapt to different usage environments.

[0043] In some embodiments, the movable frame is preferably a square frame, and the two side walls of the square frame are arranged in parallel, thus forming vertical side walls parallel to the vertical plane of the guide rail plate 2. And the clamping blocks 31 are located on the two side walls at the ends of the movable support 3, so that one end of the movable support 3 can always be located on one side of the guide rail plate 2, and the other end of the movable support 3 can correspondingly form an unfolded or folded state.

[0044] In addition, the present application also provides an aerial work equipment. Please refer to Figure 1 , this equipment includes a vehicle body 4 and a telescopic boom 5 arranged on the vehicle body 4, and also includes a support frame arranged on the vehicle body 4. The support frame is the above-mentioned support frame that can be quickly unfolded and folded.

[0045] Specifically, a vertical fixed bracket 1 is provided at the rear of the vehicle body 4, the support frame is mounted on the fixed bracket 1, and the telescopic arm 5 is placed on the fixed bracket 1 in the retracted state, and the telescopic arm 5 leaves the fixed bracket 1 in the extended state. When the support frame moves to the expanded state, one end of the movable bracket 3 on the support frame moves in the direction away from the fixed bracket 1, and the corresponding block 31 on the movable bracket 3 will gradually engage with the slot 23 in the first guide groove 21 and the first guide groove 21 limit clamping, so that the movable bracket 3 continues to expand toward the rear side of the vehicle body 4 to increase the overall length of the vehicle body 4, and the end of the movable bracket 3 away from the guide rail plate 2 is abutted against the attachment at the end of the telescopic arm 5 to prevent the attachment from impacting forward under the action of inertia and damaging the structure; when the support frame moves to the retracted state, the movable bracket 3 moves in the direction close to the fixed bracket 1, and the corresponding block 31 on the movable bracket 3 will gradually engage with the slot 23 in the first guide groove 21 and the slot 23 in the second guide groove 22 limit clamping, so that the movable bracket 3 gradually becomes a vertical setting, thereby reducing the overall length of the vehicle body 4 and improving the safety of the entire vehicle.

[0046] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0047] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core ideas of this application. It should be noted that for those skilled in the art, without departing from the principles of this application, various improvements and modifications can be made to this application, and such improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. A support frame that can be quickly deployed and retracted, characterized in that, It includes a guide rail plate (2) provided on a vehicle body (4) and a movable bracket (3) movably provided between the guide rail plates (2). The guide rail plates (2) are symmetrically provided on both sides of the movable bracket (3). A first guide groove (21) and a second guide groove (22) communicating with the first guide groove (21) are formed on the guide rail plate (2). The second guide groove (22) is located above the first guide groove (21), and clamping grooves (23) are formed on the lower groove walls of the first guide groove (21) and the second guide groove (22). At least two protruding clamping blocks (31) are provided on the side wall of one side of the movable bracket (3). The clamping blocks (31) extend into and are movably provided in the first guide groove (21) and the second guide groove (22). When the movable bracket (3) moves relative to the guide rail plate (2) to a first position, the clamping blocks (31) are respectively clamped with the clamping grooves (23) on the first guide groove (21) and the second guide groove (22). When the movable bracket (3) moves relative to the guide rail plate (2) to a second position, the clamping block (31) is clamped with the clamping groove (23) of the first guide groove (21).

2. The quickly deployable and collapsible support frame according to claim 1, characterized in that, The first guide groove (21) is a strip-shaped groove, the second guide groove (22) is an arc-shaped groove. The first guide groove (21) is horizontally arranged. One end of the second guide groove (22) communicates with the first guide groove (21), and the other end of the second guide groove (22) is located directly above the first guide groove (21) and is provided with the clamping groove (23).

3. The quickly deployable and collapsible support frame according to claim 2, characterized in that, The clamping blocks (31) are symmetrically distributed on both sides of the movable bracket (3), and the side wall of the movable bracket (3) is arranged close to the corresponding guide rail plate (2).

4. The quickly deployable and collapsible support frame according to claim 3, wherein, The guide rail plate (2) is vertically arranged, the side wall of the movable bracket (3) fits with the vertical plane of the corresponding guide rail plate (2), and the movable bracket (3) contacts and slides with the guide rail plate (2), or, There is a gap between the side wall of the movable bracket (3) and the vertical plane of the corresponding guide rail plate (2), and the protruding length of the clamping block (31) is greater than twice the gap.

5. The quickly deployable and collapsible support frame according to claim 1, characterized in that, At the second position, one clamping block (31) is clamped with the clamping groove (23) of the first guide groove (21), and the other clamping block (31) abuts against the groove wall of the first guide groove (21) in the width direction.

6. The quickly deployable and collapsible support frame according to any one of claims 1-5, characterized in that, The clamping groove (23) includes a U-shaped groove with a rectangular groove at the upper part and a semi-cylindrical groove at the lower part. The clamping block (31) is a cylindrical block. The width of the rectangular groove is greater than or equal to the diameter of the cylindrical block, and the groove profile of the semi-cylindrical groove matches the column profile of the cylindrical block.

7. The quickly deployable and collapsible support frame according to claim 6, characterized in that, There are at least two clamping grooves (23) on the first guide groove (21), and when one clamping block (31) is clamped with the clamping groove (23) on the second guide groove (22), the other clamping block (31) can be clamped with any clamping groove (23) on the first guide groove (21).

8. The quickly deployable and collapsible support frame according to claim 6, characterized in that, The movable bracket (3) is a square frame, and the clamping blocks (31) are located on the two side walls at the end of the movable bracket (3).

9. An aerial work equipment, comprising a vehicle body (4) and a telescopic boom (5) provided on the vehicle body (4), characterized in that, It further includes a support frame provided on the vehicle body (4), and the support frame is the support frame capable of being quickly deployed and retracted according to any one of claims 1-8.

10. The aerial work equipment according to claim 9, characterized in that, A vertical fixed bracket (1) is provided at the tail of the vehicle body (4), and the support frame is provided on the fixed bracket (1). When the support frame is in the deployed state, one end of the movable bracket (3) on the support frame moves away from the fixed bracket (1) and abuts against the attachment tool at the end of the telescopic boom (5); when the support frame is in the retracted state, the movable bracket (3) moves towards the fixed bracket (1).

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