Operation machine display screen adjusting device and operation machine

Abstract

The utility model relates to the technical field of operation machinery, and discloses an operation machinery display screen adjusting device and operation machinery, and the operation machinery display screen adjusting device comprises a base, a connecting rod mechanism, a telescopic mechanism, a first limiting piece, a connecting seat, a rotating piece and a second limiting piece; the base is suitable for being arranged on a rack of the operation machine; one end of the connecting rod mechanism is rotatably connected with the base; the telescopic mechanism is rotatably arranged on the base, is rotatably connected with the other end of the connecting rod mechanism and is suitable for stretching and retracting relative to the display screen along with the connecting rod mechanism; the first limiting piece is clamped with the telescopic mechanism; one side of the connecting seat is rotatably connected with the connecting rod mechanism; the rotating piece is rotatably arranged on the other side of the connecting seat and is suitable for being connected with the display screen; the second limiting piece is arranged on the connecting base and connected with the rotating piece in a clamped mode. The telescopic length of the display screen can be adjusted conveniently through the first limiting piece, the connecting rod mechanism and the telescopic mechanism, the rotating angle of the display screen can be adjusted conveniently through the rotating piece and the second limiting piece, and the structure is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to an operating machinery display screen adjusting device and an operating machinery. Background Art

[0002] With the continuous development of operating machinery, existing operating machinery is generally equipped with a display screen that can display current working status information. In addition, the operator can also operate the display screen to assist the operating machinery in operating.

[0003] Since the working environment of the operating machinery is relatively harsh and the operation process will generate large vibrations, in order to improve the stability of the display screen, the existing operating machinery display screen is usually fixed in the cab. The disadvantage of this structure is that the position of the display screen cannot be adjusted, and it is difficult for the operator to operate the display screen, which is inconvenient to use. In addition, the display screen is easily refracted by strong light, resulting in the operator being unable to clearly understand the content of the display screen. Utility Model Content

[0004] In view of this, the utility model provides a working machine display screen adjustment device and a working machine to solve the problem that the position of the display screen cannot be adjusted, the operator has difficulty in operating the display screen, and the use is inconvenient.

[0005] In a first aspect, the utility model provides a working machine display screen adjustment device, comprising:

[0006] A base, suitable for being arranged on a frame of an operating machine;

[0007] The connecting rod mechanism comprises a first rotating end and a second rotating end which are arranged opposite to each other, and a third rotating end which is located between the first rotating end and the second rotating end, wherein the first rotating end is rotatably connected to the base;

[0008] The telescopic mechanism is rotatably disposed on the base and is rotatably connected to the third rotating end, and is suitable for telescoping relative to the display screen along with the connecting rod mechanism;

[0009] A first limiter, adapted to be engaged with the telescopic mechanism and used to limit the telescopic length of the connecting rod mechanism;

[0010] A connecting seat, one side of which is rotatably connected to the second rotating end;

[0011] A rotating member is rotatably disposed on the other side of the connecting base and is suitable for connecting with the display screen;

[0012] The second limiting member is arranged on the connecting seat and is suitable for being engaged with the rotating member, so as to limit the rotation angle of the display screen.

[0013] Beneficial effects: The utility model can adjust the horizontal distance of the display screen relative to the operator by releasing the clamping connection between the first limiter and the telescopic mechanism, and then adjusting the telescopic connection of the connecting rod mechanism to transmit the movement of the display screen, which is easy to use. After the first limiter is clamped with the telescopic mechanism, the telescopic length of the connecting rod mechanism can be fixed, thereby fixing the distance of the display screen relative to the operator to adapt to high-intensity vibration conditions and ensure the stability of the display screen. In addition, by releasing the clamping connection between the second limiter and the rotating member, the angle of the display screen can be adjusted at the same time, and by clamping the second limiter and the rotating member, the rotation angle of the display screen can be fixed to adapt to high-intensity vibration conditions, thereby improving the structural stability. In addition, the operator can adjust the orientation of the display screen as needed to reduce the impact of strong light refraction on the operator's field of view of the display screen.

[0014] In an optional embodiment, the connecting rod mechanism includes:

[0015] A first connecting rod having a first rotating end formed at one end;

[0016] The second connecting rod has one end which forms a third rotating end with the other end opposite to the first connecting rod. The third rotating end is rotatably connected to the telescopic mechanism through a connecting shaft, and the other end of the second connecting rod forms a second rotating end.

[0017] Beneficial effects: The connecting rod mechanism adopts a first connecting rod and a second connecting rod that are rotatably connected, which is convenient for driving the telescopic mechanism to move, and the structure is stable and easy to use.

[0018] In an optional embodiment, the connecting rod mechanism includes a pair of first connecting rods and a pair of second connecting rods, and the ends of the pair of first connecting rods close to the base are respectively connected to the first gears, and the pair of first gears are meshed with each other and rotatably provided on the base, and the ends of the pair of second connecting rods close to the connecting seat are respectively rotatably connected to the second gears, and the pair of second gears are meshed with each other and rotatably provided on the connecting seat.

[0019] Beneficial effect: A pair of first connecting rods are connected by a pair of first gears, which can ensure the synchronization of the actions of the pair of first connecting rods and prevent the pair of first connecting rods from being dislocated from each other. A pair of second connecting rods are connected by a pair of second gears, which can ensure the synchronization of the actions of the pair of second connecting rods and prevent the pair of second connecting rods from being dislocated from each other, and can further improve the connection stability.

[0020] In an optional embodiment, the first connecting rod includes a pair of first sub-rods that are arranged opposite to each other and connected, and the first sub-rods have first connecting holes respectively formed at one end close to the base, and the inner wall of the first connecting hole is further provided with at least one first groove, and the first gear has first ridges corresponding to the first grooves at both axial ends.

[0021] The second connecting rod includes a pair of second sub-rods that are relatively arranged and connected. The second sub-rods have second connecting holes relatively opened at one end close to the connecting seat. The inner wall of the second connecting hole is also provided with at least one second groove. The axial ends of the second gear are provided with second ridges corresponding to the second groove.

[0022] Beneficial effects: A pair of first sub-rods constitute a first connecting rod, and the first gear can be installed in the first connecting hole and limited by the docking of the first ridge and the first slot, which is beneficial for the first gear to drive the first connecting rod to rotate accurately and synchronously. Similarly, a pair of second sub-rods constitute a second connecting rod, and the second gear can be installed in the second connecting hole and limited by the docking of the second ridge and the second slot, which is beneficial for the second gear to drive the second connecting rod to rotate accurately and synchronously.

[0023] In an optional embodiment, the telescopic mechanism includes:

[0024] A fixed rod, one end of which is rotatably connected to the base, and the other end of which is provided with a slide groove along its length direction;

[0025] A sliding rod, one end of which is slidably disposed in the sliding groove, and the other end of which is rotatably connected to the third rotating end of the connecting rod mechanism, and the sliding rod is provided with a plurality of clamping parts at intervals along its length direction;

[0026] The first limiting member is arranged on the fixing rod and can be clamped with the clamping portion.

[0027] Beneficial effect: The sliding rod slides in the sliding groove of the fixed rod to adjust the horizontal distance of the display screen relative to the operator. The clamping parts at different positions on the sliding rod are clamped with the first limit member to facilitate fixing the telescopic length of the connecting rod mechanism to fix the horizontal distance of the display screen relative to the operator.

[0028] In an optional embodiment, it further includes a first spring, and the first limiter is connected to the fixing rod through the first spring;

[0029] The sliding rod is provided with a rack along its length direction, the rack forms a plurality of clamping parts, and the first limiting member can be clamped with the rack.

[0030] Beneficial effect: The first limiter is connected to the fixed rod through the first spring. The first limiter and the telescopic mechanism can be released by pulling the first limiter to overcome the resistance of the first spring, which is convenient for operation. In addition, the first spring can also fix the first limiter. The sliding rod is connected to the first limiter through the rack, which has a simple structure and is easy to manufacture.

[0031] In an optional embodiment, a second spring is further included, and the second limiting member is connected to the connecting seat via the second spring, and the second limiting member is also slidably connected to the connecting seat.

[0032] Beneficial effect: the second limiter is connected to the connecting seat through the second spring, and the second limiter and the rotating member can be released by simply pulling the second limiter to overcome the resistance of the second spring, which is convenient for operation. In addition, the second spring can also fix the second limiter.

[0033] In an optional embodiment, a side surface of the connecting seat facing away from the connecting rod mechanism extends outward to form a pair of oppositely arranged ears, the opposite ends of the rotating member are respectively rotatably connected to the pair of ears, one end of the second spring is connected to one of the ears, and the second limit member can pass through the other ear.

[0034] Beneficial effects: The connecting seat is provided with a pair of supporting ears for convenient rotational connection with the rotating member, and also for convenient installation of the second spring, thereby improving the structural stability of the connecting seat.

[0035] In an optional embodiment, the rotating member is a rotating gear, and at least one third ridge is provided at both axial ends of the rotating gear, and is suitable for connecting with the display screen through the third ridge;

[0036] The second limiting member is provided with a plurality of locking teeth meshed with the rotating gear to clamp the rotating gear.

[0037] Beneficial effect: The rotating member is limited by the third convex edge and the display screen, which can ensure the synchronous rotation of the display screen and the rotating member, and facilitate accurate adjustment of the rotation angle of the display screen. The rotating member is a rotating gear, and the second limiting member is provided with a plurality of teeth meshing with the rotating gear, which has a simple structure and is easy to use.

[0038] In a second aspect, the utility model further provides an operating machine, comprising:

[0039] frame;

[0040] Display screen;

[0041] The above-mentioned operating machine display screen adjustment device has a base arranged on a frame, and the display screen is connected to a rotating member.

[0042] Beneficial effect: Because the operating machinery includes the operating machinery display screen adjustment device, it has the same effect as the operating machinery display screen adjustment device, that is, by releasing the clamping connection between the first limiter and the telescopic mechanism, and then adjusting the telescopic connection of the connecting rod mechanism to transmit the movement of the display screen, the horizontal distance of the display screen relative to the operator can be adjusted, which is convenient for use, and after the first limiter is clamped with the telescopic mechanism, the telescopic length of the connecting rod mechanism can be fixed, thereby fixing the distance of the display screen relative to the operator to adapt to high-intensity vibration conditions, and the stability of the display screen can be ensured. In addition, by releasing the clamping connection between the second limiter and the rotating member, the angle of the display screen can be adjusted at the same time, and by clamping the second limiter and the rotating member, the rotation angle of the display screen can be fixed to adapt to high-intensity vibration conditions, thereby improving the structural stability. In addition, the operator can adjust the orientation of the display screen as needed to reduce the impact of strong light refraction on the operator's field of view of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0044] Figure 1 This is a schematic diagram of the structure of a display screen adjustment device for a working machine according to an embodiment of the utility model;

[0045] Figure 2 for Figure 1 A partial structural schematic diagram of a display screen adjustment device for an operating machine is shown;

[0046] Figure 3 This is a schematic structural diagram of a first connecting rod according to an embodiment of the utility model;

[0047] Figure 4 It is a structural schematic diagram of the sliding rod of an embodiment of the utility model;

[0048] Figure 5 This is a schematic diagram of the connection relationship between the second limit member, the rotating member and the connecting seat in an embodiment of the utility model;

[0049] Figure 6 This is a cross-sectional view of the connection between the rotating member, the connecting seat and the display screen of the embodiment of the utility model;

[0050] Figure 7 This is a schematic structural diagram of a second position-limiting member in an embodiment of the utility model;

[0051] Figure 8It is a structural schematic diagram of a rotating member according to an embodiment of the utility model.

[0052] Description of reference numerals:

[0053] 1. Base; 2. Link mechanism; 201. First link; 2011. First sub-rod; 2012. First connecting hole; 2013. First slot; 202. Second link; 203. Connecting shaft; 204. First gear; 205. Second gear; 3. Telescopic mechanism; 301. Fixed rod; 302. Sliding rod; 3021. Clamping part; 4. First limiting member; 5. Connecting seat; 501. Support ear; 6. Rotating member; 601. Third convex ridge; 7. Second limiting member; 8. First spring; 9. Second spring; 10. Display screen. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0055] In view of the problem that the display screen of existing working machinery is fixed in the cab and its position cannot be adjusted, it is difficult for the operator to operate the display screen, resulting in inconvenience in use. The embodiment of the utility model can adjust the telescopic length of the display screen through the first limiter, the connecting rod mechanism and the telescopic mechanism, and can adjust the rotation angle of the display screen through the rotating member and the second limiter, and has a stable structure and is convenient to use.

[0056] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.

[0057] According to an embodiment of the present utility model, on the one hand, as Figure 1As shown, a display screen adjustment device for a working machine is provided, comprising: a base 1, a connecting rod mechanism 2, a telescopic mechanism 3, a first stopper 4, a connecting seat 5, a rotating member 6 and a second stopper 7. The base 1 is suitable for being arranged on the frame of the working machine. The connecting rod mechanism 2 is provided with a first rotating end and a second rotating end arranged opposite to each other, and a third rotating end located between the first rotating end and the second rotating end. The first rotating end is rotatably connected to the base 1. The telescopic mechanism 3 is rotatably arranged on the base 1, and is rotatably connected to the third rotating end of the connecting rod mechanism 2, and is suitable for telescoping with the connecting rod mechanism 2 relative to the display screen 10. The first stopper 4 is suitable for being engaged with the telescopic mechanism 3, and is used to limit the telescopic length of the connecting rod mechanism 2. One side of the connecting seat 5 is rotatably connected to the second rotating end of the connecting rod mechanism 2. The rotating member 6 is rotatably arranged on the other side opposite to the connecting seat 5, and is suitable for being connected to the display screen 10. The second stopper 7 is arranged on the connecting seat 5 and is suitable for being engaged with the rotating member 6, and is used to limit the rotation angle of the display screen 10.

[0058] In the embodiment of the utility model, by releasing the clamping connection between the first limiter 4 and the telescopic mechanism 3, and then adjusting the telescopic connection of the connecting rod mechanism 2 to transmit the movement of the display screen 10, the horizontal distance of the display screen 10 relative to the operator can be adjusted, which is convenient for use. After the first limiter 4 is clamped with the telescopic mechanism 3, the telescopic length of the connecting rod mechanism 2 can be fixed, thereby fixing the distance of the display screen 10 relative to the operator to adapt to high-intensity vibration conditions, and the stability of the display screen 10 can be ensured. In addition, by releasing the clamping connection between the second limiter 7 and the rotating member 6, the angle of the display screen 10 can be adjusted at the same time, and by clamping the second limiter 7 and the rotating member 6, the rotation angle of the display screen 10 can be fixed to adapt to high-intensity vibration conditions, further improving the structural stability. In addition, the operator can adjust the orientation of the display screen 10 as needed to reduce the influence of strong light refraction on the operator's field of vision of viewing the display screen 10.

[0059] It should be noted that the embodiments of the present invention do not limit the above-mentioned rotational connection forms, and conventional rotational connections such as rotating shafts and hinges can be used.

[0060] In one embodiment, the link mechanism 2 mainly includes: a first link 201 and a second link 202. A first rotating end is formed at one end of the first link 201. The second link 202 and the other end opposite to the first link 201 form a third rotating end, and the third rotating end is rotatably connected to the telescopic mechanism 3 through a connecting shaft 203, and the other end of the second link 202 forms a second rotating end. The link mechanism 2 uses the first link 201 and the second link 202 that are rotatably connected, which is convenient for driving the telescopic mechanism 3 to move, and the structure is stable and convenient to use.

[0061] In one embodiment, the link mechanism 2 includes a pair of first links 201 and a pair of second links 202. The ends of the pair of first links 201 close to the base 1 are respectively connected with first gears 204, and the pair of first gears 204 are meshed with each other and rotatably arranged on the base 1. The pair of first links 201 are connected by the pair of first gears 204, which can ensure the synchronization of the actions of the pair of first links 201 and prevent the pair of first links 201 from being misaligned with each other. The ends of the pair of second links 202 close to the connecting seat 5 are respectively rotatably connected with second gears 205, and the pair of second gears 205 are meshed with each other and rotatably arranged on the connecting seat 5. The pair of second links 202 are connected by the pair of second gears 205, which can ensure the synchronization of the actions of the pair of second links 202, prevent the pair of second links 202 from being misaligned with each other, and can further improve the connection stability.

[0062] It should be noted that, in order to ensure the transmission stability of the link mechanism 2, when the pair of first links 201 and the pair of first gears 204 are assembled, it is necessary to ensure that the angles formed between the pair of first links 201 and the base 1 are substantially the same. Similarly, when the pair of second links 202 and the pair of second gears 205 are assembled, it is necessary to ensure that the angles formed between the pair of second links 202 and the connecting seat 5 are substantially the same.

[0063] In one embodiment, the first connecting rod 201 includes a pair of first sub-rods 2011 that are arranged oppositely and connected. The first connecting holes 2012 are respectively provided at one end of the pair of first sub-rods 2011 close to the base 1, and the through holes are provided at the other end to be rotatably connected to the connecting shaft 203. The inner wall of the first connecting hole 2012 is also provided with at least one first clamping groove 2013, and the first gear 204 is provided with first ridges corresponding to the first clamping groove 2013 at both axial ends. The pair of first sub-rods 2011 constitute the first connecting rod 201, and the first gear 204 can be installed in the first connecting hole 2012, and the first ridges and the first clamping groove 2013 are connected to each other to limit the position, so that the first gear 204 can drive the first connecting rod 201 to rotate accurately and synchronously.

[0064] Similarly, the second connecting rod 202 includes a pair of second sub-rods that are relatively arranged and connected, and the second connecting holes are relatively opened at one end of the pair of second sub-rods close to the connecting seat 5, and the inner wall of the second connecting hole is also provided with at least one second clamping groove, and the second convex ridges corresponding to the second clamping grooves are opened at both axial ends of the second gear 205. The pair of second sub-rods constitute the second connecting rod 202, and the second gear 205 can be installed in the second connecting hole, and the second convex ridge and the second clamping groove are connected to limit the position, which is conducive to the second gear 205 driving the second connecting rod 202 to rotate accurately and synchronously.

[0065] In one embodiment, Figure 1 , Figure 2 and Figure 4As shown, the telescopic mechanism 3 mainly includes: a fixed rod 301 and a sliding rod 302. One end of the fixed rod 301 is rotatably connected to the base 1, and the other end is provided with a slide groove along its length direction. One end of the sliding rod 302 is slidably arranged in the slide groove, and the other end is rotatably connected to the third rotating end of the connecting rod mechanism 2. The sliding rod 302 is provided with a plurality of clamping parts 3021 at intervals along its length direction. The length direction of the sliding rod 302 is as shown in FIG. Figure 4 As shown by arrow A in FIG, since the sliding rod 302 is slidably arranged in the sliding groove, the length direction of the sliding rod 302 is consistent with the length direction of the fixed rod 301. The first stopper 4 is arranged on the fixed rod 301 and can be engaged with the clamping portion 3021. The sliding rod 302 slides in the sliding groove of the fixed rod 301 to adjust the horizontal distance of the display screen 10 relative to the operator, and the clamping portions 3021 at different positions on the sliding rod 302 are engaged with the first stopper 4, so as to fix the telescopic length of the connecting rod mechanism 2 and fix the horizontal distance of the display screen 10 relative to the operator.

[0066] Specifically, the sliding rod 302 is rotatably connected to the third rotating end via the connecting shaft 203 . At this time, the base 1 , the first connecting rod 201 , the sliding rod 302 and the fixing rod 301 form a triangular structure to ensure the stability of the display screen 10 after adjustment.

[0067] It should be noted that the embodiment of the utility model does not limit the clamping portion 3021 , as long as the clamping portion 3021 can be clamped with the first limiting member 4 .

[0068] Furthermore, in one embodiment, the operating machine display screen adjustment device further includes a first spring 8, and the first stopper 4 is connected to the fixing rod 301 via the first spring 8. The first stopper 4 can be released from the telescopic mechanism 3 by simply pulling the first stopper 4 to overcome the resistance of the first spring 8, which is convenient for operation. In addition, the first spring 8 can also fix the first stopper 4.

[0069] In addition, the sliding rod 302 is provided with a rack along its length direction, and the rack forms a plurality of clamping parts 3021 , and the first limiting member 4 can be clamped with the rack, which has a simple structure and is easy to manufacture.

[0070] Specifically, the length direction of the first spring 8 is consistent with the height direction of the groove between the racks, and is kept in a tensioned state when the first stopper 4 is engaged with the telescopic mechanism 3. Figure 4 As shown by arrow B in FIG.

[0071] In one embodiment, Figure 1 and Figure 5As shown, the operating machine display screen adjustment device also includes a second spring 9. The second limiter 7 is connected to the connecting seat 5 through the second spring 9, and the second limiter 7 is also slidably connected to the connecting seat 5. The second limiter 7 and the rotating member 6 can be released by simply pulling the second limiter 7 to overcome the resistance of the second spring 9, which is convenient for operation. In addition, the second spring 9 can also fix the second limiter 7.

[0072] In one embodiment, the side surface of the connecting seat 5 facing away from the connecting rod mechanism 2 extends outward to form a pair of ears 501 arranged opposite to each other, the opposite ends of the rotating member 6 are respectively rotatably connected to the pair of ears 501, one end of the second spring 9 is connected to one of the ears 501, and the second stopper 7 can pass through the other ear 501. The connecting seat 5 is provided with a pair of ears 501 to facilitate the rotatable connection with the rotating member 6, and also facilitate the installation of the second spring 9, thereby improving the structural stability of the connecting seat 5.

[0073] Specifically, a pair of ears 501 are arranged up and down along the height direction of the connection seat 5. Figure 5 As shown by arrow C in the figure. The second stopper 7 can slide along the height direction of the connecting seat 5, and a first spring slot is provided on one side. One end of the second spring 9 is engaged with the first spring slot. A second spring slot is provided on the upper surface of the lug 501 at the lower end, and the other end of the second spring 9 is engaged with the second spring slot. The lug 501 at the upper end is provided with a through hole, and the second stopper 7 is passed through the through hole.

[0074] It should be noted that the embodiment of the utility model does not limit the rotating member 6, as long as the rotating member 6 can drive the display screen 10 to rotate. Exemplarily, in order to improve the rotation accuracy, in one embodiment, the rotating member 6 can be a rotating gear, and correspondingly, the lower end of the second limit member 7 is provided with a first internal tooth surface. The first internal tooth surface meshes with one side of the rotating gear. Similarly, the display screen 10 is provided with a second internal tooth surface, and the second internal tooth surface meshes with the other side of the rotating gear.

[0075] In one embodiment, Figure 8 As shown, at least one third ridge 601 is provided at both axial ends of the rotating gear, and the rotating gear is suitable for connecting with the display screen 10 through the third ridge 601. The rotating member 6 is connected and limited with the display screen 10 through the third ridge 601, which can ensure the synchronous rotation of the display screen 10 and the rotating member 6, and facilitate accurate adjustment of the rotation angle of the display screen 10. The second limiting member 7 is provided with a plurality of teeth meshing with the rotating gear to clamp the rotating gear, which has a simple structure and is convenient to use.

[0076] The working process of the embodiment of the utility model is as follows:

[0077] When adjusting the horizontal distance of the display screen 10: pull the first limit member 4 upward to overcome the pulling force of the first spring 8, so that the first limit member 4 is disengaged from the groove between the racks, and the operator pulls the display screen 10 horizontally, driving a pair of first connecting rods 201 and a pair of second connecting rods 202 to rotate, and at the same time, one first connecting rod 201 drives the sliding rod 302 to slide in the sliding groove of the fixed rod 301; after the display screen 10 moves to a suitable horizontal distance, lower the first limit member 4 to make it enter the groove between the racks to limit the movement of the display screen 10.

[0078] When adjusting the rotation angle of the display screen 10: pull the second limit member 7 upward to overcome the pulling force of the second spring 9, so that the first internal tooth surface of the second limit member 7 is disengaged from the rotating gear, that is, the rotating member 6; thereafter, the rotating member 6 and the display screen 10 can rotate freely; the operator rotates the display screen 10 to a suitable angle, puts down the second limit member 7, and makes the first internal tooth surface re-engage with the rotating gear to limit the rotation of the display screen 10.

[0079] According to an embodiment of the present utility model, on the other hand, a working machine is provided, which mainly includes: a frame, a display screen 10 and the above-mentioned working machine display screen adjustment device.

[0080] Specifically, the base 1 of the operating machine display screen adjustment device is fixedly arranged on the frame, and the display screen 10 is fixedly connected to the rotating member 6 .

[0081] Because the operating machine includes the operating machine display screen adjustment device, it has the same effect as the operating machine display screen adjustment device, that is, by releasing the clamping connection between the first limiter 4 and the telescopic mechanism 3, and then adjusting the telescopic connection of the connecting rod mechanism 2 to transmit the movement of the display screen 10, the horizontal distance of the display screen 10 relative to the operator can be adjusted, which is convenient for use, and after the first limiter 4 is clamped with the telescopic mechanism 3, the telescopic length of the connecting rod mechanism 2 can be fixed, thereby fixing the distance of the display screen 10 relative to the operator to adapt to high-intensity vibration conditions, and the stability of the display screen 10 can be ensured. In addition, by releasing the clamping connection between the second limiter 7 and the rotating member 6, the angle of the display screen 10 can be adjusted at the same time, and by clamping the second limiter 7 and the rotating member 6, the rotation angle of the display screen 10 can be fixed to adapt to high-intensity vibration conditions, further improving the structural stability. In addition, the operator can adjust the orientation of the display screen 10 as needed to reduce the influence of strong light refraction on the operator's field of vision of viewing the display screen 10.

[0082] Specifically, the working machinery includes but is not limited to excavators, cranes, pile drivers, mixers, etc.

[0083] Specifically, the display screen 10 may be a touch screen or a display with function keys. The operator may adjust the orientation of the touch screen through the operating machine display screen adjustment device to operate the touch screen, or adjust the orientation of the display to operate the function keys on the display.

[0084] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A display screen adjustment device for an operating machine, characterized in that: include: A base (1) is suitable for being arranged on a frame of an operating machine; A connecting rod mechanism (2) is provided with a first rotating end and a second rotating end which are arranged opposite to each other, and a third rotating end which is located between the first rotating end and the second rotating end, wherein the first rotating end is rotatably connected to the base (1); A telescopic mechanism (3) is rotatably disposed on the base (1) and is rotatably connected to the third rotating end, and is suitable for telescoping with the connecting rod mechanism (2) relative to the display screen (10); A first limiting member (4) adapted to be engaged with the telescopic mechanism (3) and used to limit the telescopic length of the connecting rod mechanism (2); A connecting seat (5), one side of which is rotatably connected to the second rotating end; A rotating member (6) is rotatably disposed on the other side opposite to the connecting seat (5) and is suitable for connecting to the display screen (10); The second limiting member (7) is arranged on the connecting seat (5) and is suitable for being engaged with the rotating member (6) and is used to limit the rotation angle of the display screen (10).

2. The operating machine display screen adjustment device according to claim 1, characterized in that: The connecting rod mechanism (2) comprises: A first connecting rod (201), one end of which is formed with the first rotating end; The second connecting rod (202) has one end that forms the third rotating end with the other end opposite to the first connecting rod (201); the third rotating end is rotatably connected to the telescopic mechanism (3) via a connecting shaft (203); and the other end of the second connecting rod (202) forms the second rotating end.

3. The operating machine display screen adjustment device according to claim 2, characterized in that: The connecting rod mechanism (2) comprises a pair of first connecting rods (201) and a pair of second connecting rods (202); one end of the pair of first connecting rods (201) close to the base (1) is respectively connected to a first gear (204); the pair of first gears (204) are meshed with each other and are rotatably arranged on the base (1); one end of the pair of second connecting rods (202) close to the connecting seat (5) is respectively rotatably connected to a second gear (205); the pair of second gears (205) are meshed with each other and are rotatably arranged on the connecting seat (5).

4. The operating machine display screen adjustment device according to claim 3, characterized in that: The first connecting rod (201) comprises a pair of first sub-rods (2011) arranged opposite to each other and connected, and a first connecting hole (2012) is respectively provided at one end of the pair of first sub-rods (2011) close to the base (1), and the inner wall of the first connecting hole (2012) is also provided with at least one first clamping groove (2013), and first ridges corresponding to the first clamping groove (2013) are provided at both axial ends of the first gear (204); The second connecting rod (202) comprises a pair of second sub-rods that are arranged opposite to each other and connected, and second connecting holes are formed opposite to each other at one end of the pair of second sub-rods close to the connecting seat (5). The inner wall of the second connecting hole is also provided with at least one second slot, and the axial ends of the second gear (205) are provided with second ridges corresponding to the second slots.

5. The operating machine display screen adjustment device according to any one of claims 1 to 4, characterized in that: The telescopic mechanism (3) comprises: A fixed rod (301), one end of which is rotatably connected to the base (1), and the other end of which is provided with a slide groove along its length direction; A sliding rod (302), one end of which is slidably disposed in the sliding groove, and the other end of which is rotatably connected to the third rotating end of the connecting rod mechanism (2), and the sliding rod (302) is provided with a plurality of clamping parts (3021) at intervals along its length direction; The first position-limiting member (4) is arranged on the fixing rod (301) and can be engaged with the engaging portion (3021).

6. The operating machine display screen adjustment device according to claim 5, characterized in that: It also includes a first spring (8), and the first limiting member (4) is connected to the fixing rod (301) via the first spring (8); The sliding rod (302) is provided with a rack along its length direction, the rack forms a plurality of the clamping parts (3021), and the first limiting member (4) can be clamped with the rack.

7. The operating machine display screen adjustment device according to any one of claims 1 to 4, characterized in that: It also comprises a second spring (9), the second limiting member (7) is connected to the connecting seat (5) via the second spring (9), and the second limiting member (7) is also slidably connected to the connecting seat (5).

8. The operating machine display screen adjustment device according to claim 7, characterized in that: The connecting seat (5) extends outwardly on one side facing away from the connecting rod mechanism (2) to form a pair of ears (501) arranged opposite to each other, the opposite ends of the rotating member (6) are respectively rotatably connected to the pair of ears (501), one end of the second spring (9) is connected to one of the ears (501), and the second limiting member (7) can pass through the other ear (501).

9. The operating machine display screen adjustment device according to any one of claims 1 to 4, characterized in that: The rotating member (6) is a rotating gear, and at least one third ridge (601) is provided at both axial ends of the rotating gear, and is suitable for being connected to the display screen (10) via the third ridge (601); The second limiting member (7) is provided with a plurality of locking teeth meshing with the rotating gear to clamp the rotating gear.

10. A working machine, characterized in that: include: frame; Display screen (10); The operating machinery display screen adjustment device according to any one of claims 1 to 9, wherein the base (1) is arranged on the frame, and the display screen (10) is connected to the rotating member (6).

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