Handrail box and engineering machine

Abstract

The utility model discloses a kind of handrail box and engineering machinery in engineering machinery technical field, handrail box includes rack and control component. Rack is equipped with microswitch and drive lock. Control component includes handle plate with rack swing connection and handle with handle plate fixed connection, operating handle makes handle plate relative rack move to D1 direction or D2 direction, and handle plate makes microswitch and drive lock in different opening or closing state. Single control handle can control handle plate to move in different direction, and adjust the working state of microswitch and drive lock, simplify the structure of operation component, improve the convenience of using handrail box;Prevent the situation of intercommunication microswitch and unlocking drive lock, improve the security of using handrail box.

Description

Technical Field

[0001] This utility model belongs to the field of engineering machinery technology, specifically relating to a handrail box and engineering machinery. Background Technology

[0002] Construction machinery is a general term for industrial equipment such as excavators, loaders, and cranes. The armrest box is a core auxiliary component within the cab. It integrates functional modules such as the pilot control system and electric control handles. To avoid the armrest box taking up too much space in the cab, it is generally designed to be flip-up. Conventional armrest boxes have separate operating handles for the pilot control system and the mechanism controlling the armrest box's flipping; these two are independent of each other.

[0003] However, this independent armrest box operation structure requires operating different handles each time to adjust the pilot control system or flip the armrest box, which is inconvenient to use. Sometimes, when flipping the armrest box, the pilot control system may be accidentally activated, or when adjusting the pilot control system, the armrest box may be mistakenly started, which can easily cause safety accidents. Utility Model Content

[0004] The purpose of this utility model is to disclose an armrest box and engineering machinery, which can be adjusted by a single handle or operated by flipping the armrest box. It is convenient to operate and can avoid accidental touches, thus improving the safety of armrest box operation.

[0005] To achieve the above objectives, this utility model discloses an armrest box, comprising: A frame, on which a micro switch and a drive lock are provided; The control assembly includes a handle plate and a grip. The handle plate is movably connected to the frame, and the grip is fixedly connected to the handle plate. The grip is manually operated to move the handle plate relative to the frame in either direction D1 or D2. When the handle plate moves in direction D1, the micro switch is activated and the drive lock is deactivated. When the handle plate moves in direction D2, the micro switch is deactivated and the drive lock is activated.

[0006] As an optional implementation, the drive lock includes a lock body and a latch. The lock body is fixedly connected to the frame, and the latch is movably connected to the lock body. The lock body is provided with a locking rod. The handle plate is provided with a second guide groove, and the free end of the locking rod passes through the second guide groove. The free end of the locking rod abuts against the end of the second guide groove in the D1 direction, and the latch closes the lock body. Alternatively, the free end of the locking rod abuts against the end of the second guide groove in the D2 direction, and the latch unlocks the lock body.

[0007] As an optional implementation, the micro switch includes a spring for disconnecting or connecting the micro switch; the handle plate moves in the direction of D2, so that the spring elastically abuts against the handle plate, and a roller is provided at the point where the spring abuts against the handle plate.

[0008] As an optional implementation, the frame includes a side plate, on which a cylinder for flipping the armrest box is provided, the telescopic end of the cylinder being rotatably connected to the side plate; the drive lock is used to start or stop the cylinder.

[0009] As an optional implementation, the side plate is provided with a fixed post, and the handle plate is provided with a third guide groove that is slidably connected to the fixed post; the side plate is provided with a first guide groove, and the handle plate is provided with a sliding post that is slidably connected to the first guide groove; a leaf spring is provided between the sliding post and the fixed post, and the two ends of the leaf spring are respectively hooked to the fixed post and the sliding post.

[0010] As an optional implementation, it also includes an indicator rod rotatably connected to the frame, the indicator rod being kinetically connected to the handle plate, and the handle plate driving the indicator rod to move relative to the frame.

[0011] As an optional implementation, the indicator rod is rotatably connected to the side plate, the indicator rod is provided with a cam plate, the cam plate is circumferentially fixed to the indicator rod, and the cam plate is provided with a sliding groove that is slidably connected to the sliding column.

[0012] As an optional implementation, the handle plate is rotatably connected to the frame, and both the first guide groove and the third guide groove are arc-shaped grooves.

[0013] As an optional implementation, the armrest box also includes a housing that isolates most of the frame and the control components from the outside. The end of the handle for manual gripping is located outside the housing, and the housing has clearance holes corresponding to the position of the handle. The housing includes side covers and a top cover. The frame has removable side covers on both opposite sides, and a removable top cover on the top of the frame.

[0014] Another aspect of this utility model discloses an engineering machine, including a body and the aforementioned armrest box, wherein the armrest box is disposed on the body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The handle plate is movably connected to the frame; the grip is fixedly connected to the handle plate. By operating the grip, the handle plate moves relative to the frame in the D1 or D2 direction, and the handle plate sequentially starts and stops the micro switch and the drive lock. The handle plate can be moved in different directions by operating the grip alone, and the working status of the micro switch and the drive lock can be adjusted, which simplifies the structure of the operating components and improves the ease of use of the armrest box.

[0016] (2) The handle plate moves relative to the frame in the D1 or D2 direction; the handle plate connects the micro switch and closes the drive lock, or disconnects the micro switch and unlocks the drive lock. This ensures that when the handle plate moves in different directions, the micro switch and the drive lock are always in opposite working states, preventing the micro switch from being connected and the drive lock from being unlocked, thus improving the safety of using the armrest box. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an assembly drawing of the frame and control components of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 Enlarged view of point B in the middle; Figure 4 This is a structural diagram of the entire utility model; Figure 5 This is an exploded view of this utility model; Figure 6 This is an exploded view of the frame in this utility model; Figure 7 yes Figure 6 A magnified view of point C in the middle.

[0019] Explanation of key figure labels: 1. Housing; 11. Side cover; 111. Clearance hole; 12. Top cover; 2. Frame; 21. Side plate; 211. First guide groove; 212. Fixing column; 3. Control components; 31. Handle plate; 311. Second guide groove; 312. Third guide groove; 32. Leaf spring; 313. Sliding column; 33. Grip; 34. Indicator rod; 341. Cam plate; 342. Sliding groove; 4. Drive lock; 41. Lock body; 411. Lock rod; 42. Lock catch; 5. Micro switch; 51. Spring; 511. Roller; 6. Cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to include a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0024] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0025] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0026] Please see Figure 1As shown, one embodiment of this application provides an armrest box, including a frame 2 and a control component 3. The frame 2 provides an installation position for the control component 3. The frame 2 is equipped with a micro switch 5 and a drive lock 4. The micro switch 5 can be used to start and stop the pilot control system of the engineering equipment, and the drive lock 4 is used to start or stop the power component for the armrest box to tilt.

[0027] The control assembly 3 includes a handle plate 31 and a grip 33. The handle plate 31 is movably connected to the frame 2, and the grip 33 is fixedly connected to the handle plate 31. Manually operating the grip 33 causes the handle plate 31 to move relative to the frame 2 in the D1 or D2 direction. The handle plate 31 also sequentially activates and deactivates the micro switch 5 and the drive lock 4. By independently operating the grip 33, the handle plate 31 can be moved in different directions, and the working status of the micro switch 5 and the drive lock 4 can be adjusted, simplifying the structure of the control assembly and improving the ease of use of the armrest box.

[0028] When the handle plate 31 moves relative to the frame 2 in the D1 direction, the handle plate 31 activates the micro switch 5 and deactivates the drive lock 4; when the handle plate 31 moves relative to the frame 2 in the D2 direction, the handle plate 31 deactivates the micro switch 5 and activates the drive lock 4. This ensures that when the handle plate 31 moves in different directions, the micro switch 5 and the drive lock 4 are always in opposite operating states, preventing the micro switch 5 from being activated and the drive lock 4 from being unlocked, thus improving the safety of using the armrest box.

[0029] Please see Figure 2 , Figure 4 and Figure 5 As shown, in some embodiments, the drive lock 4 includes a lock body 41 and a latch 42. The lock body 41 is fixedly connected to the frame 2, and the latch 42 is movably connected to the lock body 41. The lock body 41 is provided with a locking rod 411, which is used to drive the lock body 41 to lock or unlock the latch 42. The handle plate 31 is provided with a second guide groove 311, and the free end of the locking rod 411 passes through the second guide groove 311. When the grip 33 drives the handle plate 31 to move, the locking rod 411 slides relative to the handle plate 31 along the second guide groove 311. When the free end of the locking rod 411 abuts against the end of the second guide groove 311 in the direction of D1, the locking rod 411 drives the lock body 41 to close the latch 42, so that the driving component that drives the armrest box to flip cannot work; when the free end of the locking rod 411 abuts against the end of the second guide groove 311 in the direction of D2, the locking rod 411 drives the lock body 41 to unlock the latch 42, so that the motor component that drives the armrest box to flip can resume working.

[0030] The locking lever 411 can be adjusted to different positions via the second guide groove 311 on the handle plate 31 to switch the closed or unlocked state of the lock body 41 and the latch 42. This replaces the complex gears, linkages, or multi-stage transmission components in traditional locks, making the structure of the control drive lock 4 simpler. This significantly reduces the number of internal parts, shrinks the size of the control component 3, and provides more space for the internal layout of the frame 2, facilitating the integration of other functional components into the frame 2.

[0031] Please see Figure 3 As shown, in some embodiments, the micro switch 5 includes a spring 51, which is used to open or close the micro switch 5. When the handle plate 31 moves in the D2 direction, the spring 51 elastically abuts against the handle plate 31, thus opening the micro switch 5; when the handle plate 31 moves in the D1 direction, the spring 51 gradually separates from the handle plate 31, thus opening the micro switch 5. A roller 511 is provided at the contact point between the spring 51 and the handle plate 31. The roller 511 can reduce the friction during the contact process between the handle plate 31 and the spring 51, extending the service life of the handle plate 31 and the spring 51.

[0032] Please see Figure 4 As shown, in some embodiments, the frame 2 includes a side plate 21, on which a cylinder 6 for flipping the armrest box is provided. The telescopic end of the cylinder 6 is rotatably connected to the side plate 21, and the drive lock 4 is used to start or stop the cylinder 6.

[0033] Using cylinder 6 as the power component for flipping the armrest box, the movement of the telescopic end of cylinder 6 can generate a linear force. By rotatably connecting the telescopic end of cylinder 6 to side plate 21, when cylinder 6 extends or retracts, the rotational characteristics of the connection point convert the linear motion into the flipping motion of the armrest box, thereby realizing the switching of the armrest box in different states. This makes the flipping operation of the armrest box more automated and convenient. Users only need to control the movement of cylinder 6 to easily change the position of the armrest box, improving the convenience of using the armrest box.

[0034] Please see Figure 2 As shown, in some embodiments, the side plate 21 is provided with a fixing post 212, and the handle plate 31 is provided with a third guide groove 312 that is slidably connected to the fixing post 212. The side plate 21 is provided with a first guide groove 211, and the handle plate 31 is provided with a sliding post 313 that is slidably connected to the first guide groove 211. A leaf spring 32 is provided between the sliding post 313 and the fixing post 212, and the two ends of the leaf spring 32 are respectively hooked to the fixing post 212 and the sliding post 313.

[0035] The third guide groove 312 on the handle plate 31 is slidably connected to the fixed post 212 on the side plate 21, providing another motion track for the rotation of the handle plate 31. Based on the cooperation of the sliding post 313 and the first guide groove 211, a multi-dimensional motion guiding structure is formed, making the rotation of the handle plate 31 more stable and smooth. This composite guiding structure can more precisely control the motion trajectory of the handle plate 31, reduce deviations and wobbling during movement, and ensure that the handle plate 31 rotates according to the expected path and direction.

[0036] The leaf spring 32 is connected between the sliding column 313 and the fixed column 212. When the grip 33 drives the handle plate 31 to rotate, the sliding column 313 slides within the sliding groove 342 and the third guide groove 312, and the leaf spring 32 is stretched or compressed. Utilizing the restoring elasticity of the leaf spring 32, the handle plate 31 has a tendency to automatically return to its initial state. After operation, it helps the handle plate 31 return to its initial position, making it convenient for the user to repeatedly adjust the movement state of the handle plate 31 through the grip 33.

[0037] The restoring force of the leaf spring 32 acts between the slide column 313 and the fixed column 212, helping to keep the handle plate 31, slide column 313, and indicator rod 34 stable relative to the frame 2. When the armrest box is subjected to slight external disturbances, the spring force of the leaf spring 32 can resist these disturbances, preventing the indicator rod 34 from accidentally triggering the handle plate 31 to shake or shift, thus ensuring the stability of the entire structure.

[0038] The elastic properties of the leaf spring 32 provide the operator with spring feedback when gripping the handle 33. When the operator rotates the handle 33, the leaf spring 32 generates corresponding spring force according to the movement of the slide column 313. The operator can feel this change in spring force and thus obtain feedback information about the travel distance of the handle plate 31. This feedback helps the operator to more accurately grasp the position and state of the handle plate 31, achieving more precise operational control.

[0039] Please see Figures 1 to 2 As shown, in some embodiments, an indicator rod 34 is also included, which is rotatably connected to the frame 2. The indicator rod 34 is throttle-connected to the handle plate 31. When the handle plate 31 drives the indicator rod 34 to move relative to the frame 2, the position of the indicator rod 34 relative to the frame 2 changes when the handle plate 31 moves in the D1 or D2 direction. The user can directly determine the working status of the armrest box by observing the state of the indicator rod 34.

[0040] Please see Figure 2 As shown, in some embodiments, the indicator rod 34 is rotatably connected to the side plate 21, and the indicator rod 34 is provided with a cam plate 341. The cam plate 341 is circumferentially fixed to the indicator rod 34, and the cam plate 341 is provided with a groove 342 that is slidably connected to the sliding column 313.

[0041] The eccentric portion of the cam plate 341 creates a lever effect for movement. The handle plate 31, via the slide column 313, acts on the groove 342 located on the eccentric portion of the cam plate 341, driving the indicator rod 34 to deflect at a larger angle relative to the frame 2. This allows the user to more intuitively observe the positional changes of the indicator rod 34 relative to the frame 2. The cooperation between the cam plate 341 and the slide column 313 simplifies the transmission structure between the indicator rod 34 and the handle plate 31, improving the integration of the equipment. When the cam plate 341 and / or the slide column 313 are made of wear-resistant materials, such as hardened steel or self-lubricating plastic, or when bearings are fitted onto the slide column 313, allowing it to roll against the groove 342, these measures help extend the service life of the cam plate 341 and the slide column 313.

[0042] In some embodiments, the handle plate 31 is rotatably connected to the frame 2, and both the first guide groove 211 and the third guide groove 312 are arc-shaped grooves.

[0043] The handle plate 31 is rotatably connected to the side plate 21, which is more ergonomic and allows the operator to operate the handle 33 to drive the handle plate 31 to rotate in a more comfortable way within a small operating space. By controlling the different rotation directions of the handle 33, the operator can make the handle plate 31 rotate along different D1 or D2 directions, thereby connecting and adjusting the working state of the micro switch 5 and the drive lock 4.

[0044] The sliding of the slide column 313 within the arc-shaped first guide groove 211 converts the rotational motion of the handle plate 31 into the rotational motion of the indicator rod 34 via the cam plate 341. This motion conversion method is compact and can achieve complex motion transmission within a limited space. This transmission structure between the indicator rod 34 and the handle plate 31 facilitates the handle plate 31 driving the indicator rod 34 to rotate, while the indicator rod 34 is unlikely to drive the handle plate 31 in the opposite direction. This prevents the user from accidentally triggering the handle plate 31 through the indicator rod 34, thus improving the safety of using the armrest box.

[0045] Please see Figures 6 to 7 As shown, in some embodiments, the armrest box also includes a housing 1, which isolates most of the frame 2 and the control components 3 from the outside. The end of the handle 33 for manual gripping is located on the outside of the housing 1, and the housing 1 is provided with a clearance hole 111 corresponding to the position of the handle 33.

[0046] The housing 1 encloses most of the frame 2 and control components 3, effectively preventing external dust, moisture, and debris from entering. This avoids dust accumulation affecting the mechanical movement of the frame 2 and control components 3, and prevents moisture ingress leading to rust on metal parts, short circuits in electronic components, etc., thereby extending the lifespan of internal components and reducing the probability of malfunctions. As a protective barrier, the housing 1 disperses and buffers external impacts, reducing the direct impact of external factors on the frame 2 and control components 3, and lowering the risk of internal structural damage.

[0047] The end of the handle 33 for manual gripping is located on the outside of the housing 1, and the housing 1 has a clearance hole 111. This ensures that the operator can easily grip the handle 33 for operation, while also allowing the indicator rod 34 to maintain effective connection and transmission with the internal frame 2 and control components 3. The operator does not need to access the complex internal structure; they can easily operate the control components simply by using the handle 33 on the outside of the housing 1. Isolating the moving parts inside the housing 1 prevents the operator from accidentally contacting these moving parts during operation, thus avoiding safety accidents such as pinching or abrasions.

[0048] In some embodiments, the housing 1 includes a side cover 11 and a top cover 12, and the frame 2 has a removable side cover 11 on both opposite sides, and a removable top cover 12 on the top of the frame 2.

[0049] During the assembly of the armrest box, the detachable side covers 11 and top cover 12 facilitate the installation of the frame 2 and other internal components. The frame 2 can be placed in a suitable position first, and the relevant control components 3, armrest box connecting structures, etc., can be installed onto the frame 2. Then, the side covers 11 and top cover 12 are installed separately, enclosing each component within the housing 1. This step-by-step installation method reduces installation difficulty and improves installation efficiency, especially for armrest boxes with complex structures, enabling a more orderly completion of the armrest box assembly work.

[0050] After a period of use, the internal frame 2, control components 3, etc., of the armrest box may malfunction or require cleaning and maintenance. The removable side covers 11 and top cover 12 allow maintenance personnel to easily open the casing 1 and directly access the internal components. Without the need for complex disassembly of the entire casing 1, simply removing the corresponding side cover 11 or top cover 12 allows for quick location and troubleshooting, significantly reducing maintenance time and costs.

[0051] Another embodiment of this application provides an engineering machine, including a machine body and the aforementioned armrest box, the armrest box being disposed on the machine body. This allows the operator to more accurately and easily control the tilting of the armrest box, as well as switch the activation and deactivation of the pilot control system of the engineering machine, improving the convenience and safety of the operator in operating the engineering machine.

[0052] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An armrest box, characterized in that, include: A frame, on which a micro switch and a drive lock are provided; The control assembly includes a handle plate and a grip, wherein the handle plate is movably connected to the frame and the grip is fixedly connected to the handle plate; The handle is manually operated to move the handle plate relative to the frame in the D1 or D2 direction; when the handle plate moves in the D1 direction, the micro switch is activated and the drive lock is deactivated. When the handle plate moves in the D2 direction, the micro switch is turned off and the drive lock is turned on.

2. The armrest box according to claim 1, characterized in that, The drive lock includes a lock body and a latch. The lock body is fixedly connected to the frame, and the latch is movably connected to the lock body. The lock body is provided with a locking rod. The handle plate is provided with a second guide groove, and the free end of the locking rod passes through the second guide groove. The free end of the locking rod abuts against the end of the second guide groove in the D1 direction, and the lock body closes the latch. Alternatively, the free end of the locking rod abuts against the end of the second guide groove in the D2 direction, and the lock body unlocks the latch.

3. The armrest box according to claim 1, characterized in that, The micro switch includes a spring, which is used to disconnect or connect the micro switch; the handle plate moves in the direction of D2, so that the spring and the handle plate elastically abut against each other, and a roller is provided at the point where the spring and the handle plate abut against each other.

4. The armrest box according to any one of claims 1-3, characterized in that, The frame includes a side plate, and the side plate is provided with a cylinder for flipping the armrest box. The telescopic end of the cylinder is rotatably connected to the side plate. The drive lock is used to start or stop the cylinder.

5. The armrest box according to claim 4, characterized in that, The side plate is provided with a fixed post, and the handle plate is provided with a third guide groove that is slidably connected to the fixed post; the side plate is provided with a first guide groove, and the handle plate is provided with a sliding post that is slidably connected to the first guide groove; a leaf spring is provided between the sliding post and the fixed post, and the two ends of the leaf spring are respectively hooked to the fixed post and the sliding post.

6. The armrest box according to claim 5, characterized in that, It also includes an indicator rod that is rotatably connected to the frame, and the indicator rod is throttle-connected to the handle plate, so that the handle plate drives the indicator rod to move relative to the frame.

7. The armrest box according to claim 6, characterized in that, The indicator rod is rotatably connected to the side plate. The indicator rod is provided with a cam plate, which is circumferentially fixed to the indicator rod. The cam plate is provided with a groove that is slidably connected to the sliding column.

8. The armrest box according to claim 5, characterized in that, The handle plate is rotatably connected to the frame, and both the first guide groove and the third guide groove are arc-shaped grooves.

9. The armrest box according to claim 1, characterized in that, The armrest box also includes a housing, which isolates most of the frame and the control components from the outside. The end of the handle for manual gripping is located outside the housing, and the housing has a clearance hole corresponding to the position of the handle. The housing includes side covers and a top cover. The frame has detachable side covers on both opposite sides, and the top of the frame has a detachable top cover.

10. An engineering machinery, characterized in that, It includes the body and the armrest box as described in any one of claims 1-9, wherein the armrest box is disposed on the body.

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