Engineering machinery operation box

Abstract

The engineering machinery control box comprises a control box shell, an elbow support assembly, an adjusting assembly, a connecting support, an adjusting connecting rod mechanism and a guide rail mechanism, wherein the connecting support, the adjusting connecting rod mechanism and the guide rail mechanism are installed in a box body. The operation box shell is fixedly installed on the side face of a vehicle seat through the connecting support. The adjusting connecting rod mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, and two ends of the first connecting rod and the second connecting rod are respectively hinged with the third connecting rod and the connecting bracket to form a four-connecting-rod mechanism; the elbow support assembly is mounted on the third connecting rod through a guide rail mechanism; the up-down adjusting handle and the front-back adjusting handle are both installed on the elbow support assembly. Linkage adjustment of the elbow support assembly in the up-down direction and the front-back direction is achieved through a combined structure of a four-connecting-rod mechanism and a guide rail mechanism, meanwhile, an independent adjusting handle is arranged to be matched with a flexible shaft transmission locking device, and the problems that a traditional operation box is single in adjusting direction and cannot be synchronously linked with a seat are solved. The device has the advantages that multi-direction linkage adjustment can be achieved, and the operation comfort of a driver is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction machinery control equipment, and more particularly to a control box for construction machinery. Background Art

[0002] With the continuous development of construction machinery, drivers' requirements for operating comfort are increasing day by day. Currently, the control box of construction machinery is usually located inside the vehicle cab and is used to install electric control or hydraulic control operating handles. However, there are many problems with the existing control boxes: ordinary control boxes can only be adjusted forward and backward, up and down with the seat, or are designed in a fixed manner and cannot be synchronously linked with the seat. This design causes the driver to be unable to be in a comfortable operating range, resulting in a poor driving experience and easy fatigue. In addition, the existing control boxes have a single adjustment direction and cannot meet the personalized needs of drivers under different working conditions, further reducing the flexibility and comfort of operation. Therefore, there is an urgent need for a control box for construction machinery that can achieve multi-directional adjustment and synchronous linkage with the seat to improve the driver's operating experience and comfort. Summary of the Invention

[0003] In view of this, the present invention provides a control box for construction machinery, which can be adjusted up and down, forward and backward following the seat and effectively improve the operating comfort of the driver.

[0004] To achieve the above object, the present invention provides the following technical solutions: A control box for construction machinery, comprising: a control box housing, an elbow rest assembly, an adjustment assembly, and a connecting bracket, an adjustment link mechanism, and a guide rail mechanism installed inside the box.

[0005] Among them, the control box housing is fixedly installed on the side of the vehicle seat through the connecting bracket, and an elbow rest mounting hole is provided on the control box housing; the adjustment link mechanism includes a first link, a second link, and a third link. Both ends of the first link and the second link are respectively hinged to the third link and the connecting bracket. The first link and the second link are arranged at intervals to form a four-bar linkage; the elbow rest assembly is installed at the elbow rest mounting hole and is installed on the third link through the guide rail mechanism; the adjustment assembly includes an up-and-down adjustment handle and a front-and-back adjustment handle, and both the up-and-down adjustment handle and the front-and-back adjustment handle are installed on the elbow rest assembly.

[0006] Preferably, the adjustment assembly further includes an up-and-down adjustment cable and an up-and-down lock, the up-and-down lock is installed between the second link and the third link, and the up-and-down adjustment handle is connected to the up-and-down lock through the up-and-down adjustment cable.

[0007] Preferably, the adjusting assembly further includes a front-back adjusting flexible shaft and a front-back stopper. The front-back stopper is installed on the guide rail mechanism and located between the guide rail mechanism and the third link. The front-back adjusting handle is connected to the front-back stopper through the front-back adjusting flexible shaft.

[0008] Preferably, the connecting bracket is provided with a first pin shaft and a second pin shaft at intervals. The first link and the second link are respectively hinged to the connecting bracket through the first pin shaft and the second pin shaft.

[0009] Preferably, the elbow rest assembly includes an elbow rest housing and an elbow rest. The elbow rest is installed on the upper side of the elbow rest housing. A handle mounting hole is formed in the elbow rest. The up-down adjusting handle and the front-back adjusting handle are arranged side by side in the handle mounting hole.

[0010] Preferably, the elbow rest housing is connected to the control box housing; the guide rail assembly is installed on the lower side of the elbow rest housing.

[0011] Preferably, the guide rail mechanism includes a guide rail and a rear limit plate. The rear limit plate is located at the rear end of the guide rail; a front limit plate is provided on the control box housing. The front limit plate is located at the front side of the guide rail.

[0012] Preferably, the front-back stopper is installed on the lower side of the guide rail.

[0013] The beneficial effects of the present invention are as follows: Compared with the prior art, a construction machinery control box disclosed in the present application realizes the linkage adjustment of the elbow rest assembly in the up-down and front-back directions through the combined structure of the four-link mechanism and the guide rail mechanism. At the same time, an independent adjustment handle is provided to cooperate with the flexible shaft transmission locking device, solving the problems of single adjustment direction of the traditional control box and inability to synchronously link with the seat, and having the advantages of multi-directional linkage adjustment and improved driving comfort.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the construction machinery control box of the present invention; Figure 2 is a schematic structural view of the elbow rest assembly and the control box housing of the present invention; Figure 3 is a schematic structural view of the adjusting link mechanism and the guide rail mechanism of the present invention; Figure 4 is a front view of the adjusting link mechanism of the present invention; Figure 5It is a side view of the adjusting link mechanism of the present invention; Figure 6 It is a schematic structural diagram of the guide rail mechanism of the present invention; Figure 7 It is a schematic structural diagram of the connecting bracket of the present invention.

[0016] Reference numerals: 1. Manipulator box housing; 2. Adjusting link mechanism; 21. First link; 22. Second link; 23. Third link; 3. Guide rail mechanism; 31. Guide rail; 32. Rear limit plate; 4. Elbow rest assembly; 41. Elbow rest housing; 42. Elbow rest; 51. Up and down adjusting handle; 52. Front and rear adjusting handle; 53. Up and down adjusting flexible shaft; 54. Front and rear adjusting flexible shaft; 55. Up and down lock; 56. Front and rear lock; 6. Connecting bracket; 61. First pin shaft; 62. Second pin shaft. Detailed implementation manners

[0017] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0018] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0019] Below, refer to Figures 1 to 7 Describe the construction machinery manipulator box in the embodiments of the present invention.

[0020] An embodiment of the present application discloses a construction machinery manipulator box, including: a manipulator box housing 1, an elbow rest assembly 4, an adjusting assembly, and a connecting bracket 6, an adjusting link mechanism 2, and a guide rail mechanism 3 installed in the box.

[0021] Among them, the control box housing 1 is fixedly installed on the side of the vehicle seat through the connecting bracket 6, and an elbow rest 42 mounting hole is provided on the control box housing 1; the adjustment link mechanism 2 includes a first link 21, a second link 22 and a third link 23. Both ends of the first link 21 and the second link 22 are respectively hinged to the third link 23 and the connecting bracket 6. The first link 21 and the second link 22 are arranged at intervals to form a four-bar linkage; the elbow rest assembly 4 is installed at the elbow rest 42 mounting hole and is installed on the third link 23 through the guide rail mechanism 3; the adjustment assembly includes an up-down adjustment handle 51 and a front-back adjustment handle 52. The up-down adjustment handle 51 and the front-back adjustment handle 52 are both installed on the elbow rest assembly 4.

[0022] In this embodiment, the connecting bracket 6 refers to the basic component for connecting the bearing box and the seat. Specifically, it can be fixed on the seat frame by welding or bolt connection. Its spatial layout needs to ensure the movement freedom of the four-bar linkage. The elbow rest 42 mounting hole refers to the through hole on the box body for installing the elbow rest assembly 4, and the aperture size can be adapted to elbow rest housings 41 of different specifications.

[0023] In the prior art, there is generally a problem of insufficient adjustment freedom in the construction machinery control box. The traditional control box usually can only move as a whole with the seat or be completely fixed, and cannot realize the multi-directional independent adjustment of the box body relative to the seat. When the driver adjusts the seat position, the relative position relationship of the control box changes, resulting in the elbow support height and the handle operation angle not being adaptable. This single-dimensional adjustment method is difficult to meet the personalized needs of drivers of different body types for the operation posture, and it is easy to cause muscle fatigue during long-term operation.

[0024] The construction machinery control box disclosed in this application can effectively solve the problems of the prior art. Specifically, the rigid connection between the connecting bracket 6 and the side of the seat provides a stable reference point for the whole system. When operating the up-down adjustment handle 51, the four-bar linkage deforms into a parallelogram under the constraint of the hinge points, driving the third link 23 and the guide rail mechanism 3 to move vertically up and down. Due to the parallel arrangement of the first link 21 and the second link 22, the elbow rest assembly 4 always maintains a horizontal state during the lifting process. The front-back adjustment handle 52 unlocks the locking mechanism of the guide rail 31, enabling the elbow rest assembly 4 to linearly slide along the guide rail 31. The independent operations of the two adjustment handles respectively correspond to the displacement control in the vertical and horizontal directions, and their movement trajectories are orthogonal to each other and do not interfere with each other.

[0025] Through the above technical solution, the present application realizes the independent and precise adjustment of the control box in the vertical and horizontal directions, so that the elbow support point is always within the ergonomic comfort range. The synergistic effect of the four-bar linkage and the guide rail mechanism 3 eliminates the problem of operation angle deviation in the traditional adjustment process, and the driver can quickly adjust to the optimal operation posture according to individual needs. The integrated design of the dual adjustment handles simplifies the operation process, avoids the time loss caused by multi-step adjustment, and effectively improves the operation efficiency and comfort.

[0026] In some embodiments, for example Figures 1 to 3 As shown, the adjustment assembly further includes an up-and-down adjustment flexible shaft 53 and an up-and-down lock 55. The up-and-down lock 55 is installed between the second link 22 and the third link 23, and the up-and-down adjustment handle 51 is connected to the up-and-down lock 55 through the up-and-down adjustment flexible shaft 53. Among them, the up-and-down adjustment flexible shaft 53 refers to a cable structure with flexible transmission characteristics, which is used to transmit the operating force of the handle to the lock. The up-and-down lock 55 refers to a mechanical device with meshing and locking functions, which can be specifically realized by a ratchet mechanism with spring reset, and is used to limit the relative displacement between the second link 22 and the third link 23.

[0027] Specifically, when the operator pulls the up-and-down adjustment handle 51, this action pulls the lock through the up-and-down adjustment flexible shaft 53 to disengage from the meshing state. At this time, the four-bar linkage is unlocked and height adjustment is allowed. After the adjustment is completed, the handle is released, and the lock automatically resets under the action of the spring, forming a rigid constraint with the mating structure on the link to prevent the mechanism from generating displacement in the vertical direction. The up-and-down lock 55 directly acts on the hinge point of the second link 22 and the third link 23, which can eliminate the clearance error caused by multi-stage transmission and ensure the locking reliability.

[0028] Through the above technical solution, the present application realizes the rigid locking of the four-bar linkage at any height position, solves the problem of displacement of the mechanism caused by vibration or load change after adjustment, and at the same time simplifies the operation steps through flexible shaft transmission, so that a single handle can complete the full-process control of unlocking and locking.

[0029] In some embodiments, for example Figures 1 to 3As shown, the adjustment assembly also includes a front and rear adjustment flexible shaft 54 ​​and a front and rear locker 56. The front and rear locker 56 is installed on the guide rail mechanism 3 and is located between the guide rail mechanism 3 and the third connecting rod 23. The front and rear adjustment handle 52 is connected to the front and rear locker 56 through the front and rear adjustment flexible shaft 54. Among them, the front and rear locker 56 refers to a mechanical braking component used to limit the sliding of the guide rail mechanism 3, which can be specifically implemented by a ratchet structure with a spring reset, and remains engaged and locked in a non-operating state. The front and rear adjustment flexible shaft 54 ​​refers to a flexible transmission component used to transmit operating force, which is used to transmit the operating force of the handle to the locker. The installation position between the guide rail mechanism 3 and the third connecting rod 23 refers to that the locker is set at the intersection area of ​​the sliding path of the guide rail 31 and the connecting rod hinge point, so that the locking action acts on the linkage relationship between the guide rail 31 and the connecting rod at the same time.

[0030] Specifically, when the front and rear positions need to be adjusted, the operator pulls the front and rear adjustment handle 52, and pulls the locker through the front and rear adjustment flexible shaft 54 ​​to release the meshing state. At this time, the guide rail mechanism 3 can slide freely along the slide rail, driving the elbow support assembly 4 and the control box housing 1 to move synchronously. After releasing the handle, the locker automatically resets under the action of the spring, and its ratchet structure re-engages and locks with the rack of the guide rail 31. Since the locker is located at the connection between the guide rail 31 and the connecting rod, while locking the guide rail 31 to slide, it also constrains the degree of freedom of the connecting rod mechanism, forming a double locking mechanism. This design achieves synchronous fixation of the entire motion system through single-point locking, avoiding the matching clearance problem caused by split locking.

[0031] Through the above technical solution, the present application effectively solves the problem of insufficient stability of the front and rear adjustment lock of the traditional control box, and ensures that the position is fixed after adjustment through the double locking mechanism, eliminating the risk of displacement caused by vibration or misoperation. The operator only needs to control the handle with one hand to complete the complete process of unlocking, adjusting, and locking, which significantly improves the convenience and reliability of the adjustment operation.

[0032] In some embodiments, for example Figure 1 and Figure 7 As shown, a first pin shaft 61 and a second pin shaft 62 are spaced apart from each other on the connecting bracket 6 , and the first connecting rod 21 and the second connecting rod 22 are hinged to the connecting bracket 6 through the first pin shaft 61 and the second pin shaft 62 , respectively.

[0033] Specifically, when performing the up and down adjustment operation, the first link 21 rotates around the first pin shaft 61 to form a first rotating pair, and the second link 22 rotates around the second pin shaft 62 to form a second rotating pair. The independent fulcrums formed by the two pin shafts keep the first link 21 and the second link 22 always parallel and spaced apart, and form a stable parallel four-bar linkage driven by the third link 23. The double-pin shaft structure, through the split fulcrum design, cancels out the lateral deflection moment generated by the single-point hinge during the up and down adjustment process, and at the same time avoids the displacement interference of the two links in the moving plane. It effectively solves the jamming problem caused by the asynchronous movement of the links during the adjustment process, and ensures that the four-bar linkage always moves along the predetermined trajectory through the independent rotating fulcrum design. The pin shaft structure arranged at intervals enhances the bearing capacity of the connecting bracket 6, and can still maintain the fitting accuracy of the hinge part under frequent adjustment conditions, avoiding the pin shaft deformation problem of the traditional structure caused by long-term use.

[0034] In some embodiments, for example Figure 1 and Figure 2 As shown, the elbow rest assembly 4 includes an elbow rest housing 41 and an elbow rest 42. The elbow rest 42 is installed on the upper side of the elbow rest housing 41. A handle mounting hole is provided on the elbow rest 42. The up and down adjustment handle 51 and the front and back adjustment handle 52 are installed side by side in the handle mounting hole. Such a design enables the driver to complete multi-directional adjustment with only one hand while keeping the elbow supported, avoiding the risk of accidental touch caused by the traditional decentralized layout, and at the same time reducing the muscle fatigue caused by frequent posture adjustment.

[0035] Furthermore, the elbow rest housing 41 is connected to the control box housing 1; the guide rail 31 assembly is installed on the lower side of the elbow rest housing 41.

[0036] In some embodiments, for example Figure 6 As shown, the guide rail mechanism 3 includes a guide rail 31 and a rear limit plate 32. The rear limit plate 32 is located at the rear end of the guide rail 31; a front limit plate is provided on the control box housing 1, and the front limit plate is located on the front side of the guide rail 31. The front and rear lock 56 is installed on the lower side of the guide rail 31.

[0037] Specifically, the guide rail mechanism 3 forms a closed sliding interval through the coordinated action of the rear limit plate 32 and the front limit plate. When the elbow rest assembly 4 moves back and forth along the guide rail 31, the rear limit plate 32 physically blocks to prevent the guide rail 31 from slipping out of the track backward, and the front limit plate restricts the forward movement amount of the guide rail 31 through the blocking structure provided at the front end of the housing. The sliding stroke of the guide rail 31 is strictly restricted within the fixed range between the front and rear limit plates 32, avoiding the problem of the slide rail slipping out of the track due to external force impact or misoperation. In addition, the parallel arrangement of the front limit plate and the guide rail 31 enhances the direction stability during the sliding process, eliminating the risk of skew caused by uneven force. It effectively improves the safety and reliability of the adjustment operation.

[0038] Other components and operations of the construction machinery control box according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail here.

[0039] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An engineering machinery control box, characterized in that: include: The operating box housing, the elbow support assembly, the adjustment assembly and the connecting bracket, the adjustment connecting rod mechanism and the guide rail mechanism installed in the box; The control box housing is fixedly mounted on the side of the vehicle seat through the connecting bracket, and an elbow support mounting hole is provided on the control box housing; The adjusting link mechanism comprises a first link, a second link and a third link, both ends of the first link and the second link are respectively hinged to the third link and the connecting bracket, and the first link is spaced apart from the second link to form a four-link mechanism; the elbow support assembly is installed at the elbow support mounting hole and is installed on the third link through a guide rail mechanism; The adjustment assembly comprises an up-and-down adjustment handle and a front-and-back adjustment handle, and both the up-and-down adjustment handle and the front-and-back adjustment handle are mounted on the elbow support assembly.

2. The engineering machinery control box according to claim 1, characterized in that: The adjustment assembly also includes an up-and-down adjustment flexible shaft and an up-and-down locker, wherein the up-and-down locker is installed between the second connecting rod and the third connecting rod, and the up-and-down adjustment handle is connected to the up-and-down locker through the up-and-down adjustment flexible shaft.

3. The engineering machinery control box according to claim 1, characterized in that: The adjustment assembly also includes a front and rear adjustment flexible shaft and a front and rear locker. The front and rear locker is installed on the guide rail mechanism and is located between the guide rail mechanism and the third connecting rod. The front and rear adjustment handle is connected to the front and rear locker through the front and rear adjustment flexible shaft.

4. The engineering machinery control box according to claim 1, characterized in that: The connecting bracket is provided with a first pin and a second pin at intervals, and the first connecting rod and the second connecting rod are hinged to the connecting bracket through the first pin and the second pin respectively.

5. The engineering machinery control box according to claim 1, characterized in that: The elbow support assembly comprises an elbow support shell and an elbow support, wherein the elbow support is mounted on the upper side of the elbow support shell, a handle mounting hole is provided on the elbow support, and the up and down adjustment handle and the front and rear adjustment handle are mounted side by side in the handle mounting hole.

6. The engineering machinery control box according to claim 5, characterized in that: The elbow support shell is connected to the control box shell; the guide rail assembly is installed on the lower side of the elbow support shell.

7. The engineering machinery control box according to claim 6, characterized in that: The guide rail mechanism comprises a guide rail and a rear limit plate, wherein the rear limit plate is located at the rear end of the guide rail; a front limit plate is arranged on the housing of the control box, and the front limit plate is located at the front side of the guide rail.

8. The engineering machinery control box according to claim 7, characterized in that: The front and rear lockers are installed on the lower side of the guide rail.

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