CN115771464A - Movable double-folding workbench installed at top of cab - Google Patents

Abstract

The invention relates to a movable double-folding workbench arranged on the top of a cab, which can be divided into a supporting part, a mounting and reinforcing display part and a mounting and reinforcing keyboard part, wherein the supporting part and the mounting and reinforcing keyboard part are respectively connected with the mounting and reinforcing display part through rotating shafts. The workbench is arranged at the top of the cab, is completely folded and is positioned at a proper position which does not influence the riding of a driver and a copilot in a transportation state, and is firstly moved to a position which is convenient for a worker to operate by utilizing the guide rail in a working state and then is completely unfolded so as to be used by the worker. The workbench is provided with corresponding locking mechanisms in a transportation state or a working state to ensure that the posture and the position of the workbench are relatively fixed, and corresponding positioners are used for accurately positioning the workbench in a turning manner when each stage is unfolded and folded.

Description

Movable double-folding workbench installed at top of cab

Technical Field

The invention relates to a workbench, in particular to a workbench which is arranged on the top of a cab, can move on a main body part on a guide bearing and can be folded in a double way.

Background

The display and the keyboard are indispensable in the radar system, and a certain space is specially reserved for the installation of the display and the keyboard during the initial design. The conventional method is to fix the display and the keyboard on a workbench connected with the ground or a side wall, or to mount the display and the keyboard on a console of a control cabin, or to modify a center console of a cab for mounting the display and the keyboard.

At the present stage, the installation of the display and the keyboard in the radar system by the patent of the invention is still in the above stage, which causes certain difficulties for the spatial arrangement of the control cabin and the refitting of the vehicle to a certain extent. Therefore, a workbench which occupies a small space and is convenient and fast to implement is needed to install a display and a keyboard, thereby improving the space utilization rate and reducing the cost.

Disclosure of Invention

Technical problem to be solved

In order to avoid the defects of the prior art, the invention provides a movable double-folding workbench installed at the top of a cab.

Technical scheme

A movable double-folding workbench installed on the top of a cab is characterized by comprising a supporting part, a mounting and reinforcing display part and a mounting and reinforcing keyboard part;

the supporting part comprises four mounting corner pieces, two guide bearings and a supporting frame, wherein two working table positioners are respectively mounted on the two mounting corner pieces, the guide bearings are connected with the mounting corner pieces, a working table positioning support is welded on the supporting frame, a pin shaft on the working table positioner is inserted into a hole of the working table positioning support so as to limit the movement of the working table along the bearings, the supporting frame is connected with the guide bearings, two primary unfolding positioning blocks are welded on the supporting frame, the primary unfolding positioning blocks are used for determining the rotating angle of the working table during primary unfolding, when the working table is unfolded at the primary level, the working table is unfolded in place when the display frame contacts the surface of the primary unfolding positioning blocks, a locking mechanism is mounted on the supporting frame, and the locking support confirms that the working table is not automatically unfolded when the working table is in a completely folded state by limiting the movement of the locking mechanism;

the installation and reinforcement display part comprises a display frame and a display rear cover, the display frame is connected with the supporting frame through a rotating shaft, the reinforcement display is installed on the display frame, and the display rear cover is connected with the display frame through a screw; the second-stage folding positioning support and the second-stage unfolding limiting block are respectively connected with the display frame in a welding mode, the second-stage folding positioning support is used for determining the closing angle of the workbench during second-stage folding, and the second-stage folding positioning support is folded in place when contacting the supporting frame during second-stage folding; the second-stage unfolding limiting block is used for determining the rotation angle of the workbench during second-stage unfolding, and the keyboard frame is unfolded in place when contacting the second-stage unfolding limiting block during second-stage unfolding; the first-stage folding positioner is arranged on the display frame through a screw and used for determining the closing angle of the workbench during first-stage folding;

the installation and reinforcement keyboard part comprises a keyboard frame and a reinforcement keyboard, the keyboard frame is connected with the display frame through a rotating shaft, the reinforcement keyboard is connected with the desk plate through a screw, the desk plate is connected with the keyboard frame through a screw, the primary folding positioning block is welded on the keyboard frame, and when the primary folding positioning block is in contact with the primary folding positioner during primary folding, the primary folding positioning block shows that the folding is in place.

The further technical scheme of the invention is as follows: the guide bearing passes through bearing bush and clamp and links to each other with the installation corner fitting, bearing bush one end welding in installation corner fitting, the other end cover is on guide bearing, the cover is served and is equipped with the bearing fluting at one of guide bearing, fixes through the clamp.

The invention further adopts the technical scheme that: the supporting frame is connected with the guide bearing through a bearing assembly, a round hole for installing the guide bearing is formed in the middle of the bearing assembly, and a screw hole fixed with the supporting frame is formed in one side of the bearing assembly.

The invention further adopts the technical scheme that: the locking mechanism comprises a rotating shaft, a support, an adjusting screw rod and a locking nut, wherein two threaded holes which are vertical to each other and are connected with the supporting frame are formed in the support, two holes which are horizontal to each other and are used for fixing the adjusting screw rod are formed in the lower end of the support, a hole is formed in one end of the adjusting screw rod, the locking nut can be installed at the other end of the adjusting screw rod, and the rotating shaft penetrates through the hole in the lower end of the support and the hole in the adjusting screw rod to connect the support and the adjusting screw rod together.

The invention further adopts the technical scheme that: the first-stage folding positioning device comprises an auxiliary gasket, a neodymium magnet, a shell and a cover, wherein the shell and the cover are respectively provided with a semi-cylindrical groove, the neodymium magnet and the auxiliary gasket are respectively arranged in the semi-cylindrical grooves of the shell and the cover, and then the shell and the cover are connected together by screws.

The further technical scheme of the invention is as follows: the locking bracket is arranged on the keyboard frame, and is provided with a U-shaped hole for fixing the locking mechanism.

The further technical scheme of the invention is as follows: the rotating shaft comprises a shaft, a gasket and a bushing, wherein the gasket and the bushing are sequentially connected with each other by penetrating through the shaft.

Advantageous effects

The invention provides a movable double-folding workbench arranged on the top of a cab, which is arranged on the top of the cab, is in a completely folded state in a transportation state, and is positioned at a proper position on the top of the cab, which does not influence the visual field of a driver and the riding of a copilot. The workbench is simple to operate, safe and reliable when being folded, unfolded and moved.

Compared with the prior art, the invention has the following beneficial effects:

(1) The mounting corner fitting of the workbench is connected with the top of the cab through the screw, so that the limited space of the cab is reasonably planned, and the space utilization rate is improved;

(2) The working platform is in different states and different positions during working and transportation, so that the visual field of a driver and the riding of a copilot in a transportation state are not influenced, and the operation of personnel in a working state can be facilitated;

(3) The workbench is simple to operate when unfolded and folded, and corresponding positioners are arranged for positioning the turnover of the workbench when each stage of unfolding and folding is carried out.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.

FIG. 1 is a schematic front view of a work bench in a transport state;

FIG. 2 is a schematic view of the back of the table in a transport position;

FIG. 3 is a schematic view of the table in a deployed state;

FIG. 4 is a schematic view of the work head in a one-stage unfolded/folded state;

FIG. 5 is a schematic view of the table in a fully extended state;

FIG. 6 is a schematic view of a mounting angle;

FIG. 7 is a schematic view of a pilot bearing;

FIG. 8 is a schematic view of a support frame;

FIG. 9 is a schematic view of a stage positioner;

FIG. 10 is a schematic view of a bearing cartridge;

FIG. 11 is a schematic view of a clamp;

FIG. 12 is a schematic view of a table positioning bracket;

FIG. 13 is a schematic view of a bearing assembly;

FIG. 14 is a schematic view of a primary deployment positioning block;

FIG. 15 is a schematic view of a display frame;

FIG. 16 is a schematic view of a locking mechanism;

FIG. 17 is a schematic view of a trace mount;

FIG. 18 is a schematic view of a locking bracket;

FIG. 19 is a schematic view of a rear cover of the display;

FIG. 20 is a schematic view of the spindle;

FIG. 21 is a view of the positioning stand in two-stage folding;

FIG. 22 is a schematic view of a secondary deployment stop;

FIG. 23 is a keyboard frame diagram;

FIG. 24 is a schematic view of a primary fold locator;

FIG. 25 is a schematic view of a table;

FIG. 26 is a schematic view of a primary fold location block;

fig. 27 is a schematic diagram of a keyboard rear cover.

In the figure: 1-mounting corner fittings; 2-a guide bearing; 3-a support frame; 4-a table positioner; 5-bearing bush; 6, clamping a hoop; 7-a workbench positioning bracket; 8-a bearing assembly; 9-first-stage unfolding positioning blocks; 10-a display frame; 11-a locking mechanism; 12-a wiring support; 13-locking the bracket; 14-display rear cover; 15-a rotating shaft; 16-a ruggedized display; 17-a secondary folding positioning bracket; 18-a secondary deployment stop; 19-a keyboard frame; 20-first stage folding locator; 21-a ruggedized keyboard; 22-a table plate; 23-first-stage folding positioning blocks; 24-keyboard rear cover; 25-a rotating shaft; 26-adjusting screw; 27-a locking nut; 28-a scaffold; 29-an auxiliary washer; 30-a neodymium magnet; 31-a shell; 32-a cover; 33-axis; 34-a gasket; 35-a bushing; 36-positioning pins.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The invention provides a movable double-folding workbench arranged on the top of a cab, which mainly comprises a supporting part, a mounting and reinforcing display part and a mounting and reinforcing keyboard part.

The supporting part mainly comprises four mounting corner pieces 1, two guide bearings 2 and a supporting frame 3, wherein two working table positioners 4 are respectively arranged on the two mounting corner pieces 1 in a welding mode, the guide bearings 2 are connected with the mounting corner pieces 1 through bearing bushes 5 and hoops 6, a working table positioning support 7 is welded on the supporting frame 3, pin shafts 36 on the working table positioners 4 are inserted into holes of the working table positioning support 7 so as to limit the movement of the working table along the bearings, the supporting frame 3 is connected with the guide bearings 2 through bearing assemblies 8, two primary unfolding positioning blocks 9 are arranged on the supporting frame 3 in a welding mode, the primary unfolding positioning blocks 9 are used for determining the rotating angle of the working table during primary unfolding, when the working table is unfolded in primary unfolding, the working table is unfolded in place when the display frame 10 contacts the surface of the primary unfolding positioning blocks 9, a locking mechanism 11 and a support 12 are respectively connected with the supporting frame 3 through screw connection wiring modes, and the locking support 13 confirms that the working table is not automatically unfolded and folded when the working table is completely by limiting the movement of the locking mechanism 11.

The installation reinforced display part mainly comprises a display frame 10 and a display rear cover 14, the display frame 10 is connected with a supporting frame 3 through a rotating shaft 15, a reinforced display 16 is installed on the display frame 10 through screws, the display rear cover 14 is connected with the display frame 10 through screws, a secondary folding positioning support 17 and a secondary unfolding limiting block 18 are respectively connected with the display frame 10 through welding, the secondary folding positioning support 17 is used for determining the closing angle of the workbench in secondary folding, the secondary folding positioning support 17 is used for indicating the folding in place when contacting with the supporting frame 3 in secondary folding, the secondary unfolding limiting block 18 is used for determining the rotating angle of the workbench in secondary unfolding, the keyboard frame 19 is indicated the unfolding in place when contacting with the secondary unfolding limiting block 18 in secondary unfolding, two primary folding positioning devices 20 provided with neodymium magnets are installed on the display frame 10 through screws, and the primary folding positioning devices 20 are used for determining the closing angle of the workbench in primary folding.

The installation reinforced keyboard part comprises a keyboard frame 19 and a reinforced keyboard 21, the keyboard frame 19 is connected with the display frame 10 through a rotating shaft 15, the reinforced keyboard 21 is connected with a table plate 22 through screws, the table plate 22 is connected with the keyboard frame 19 through screws, a primary folding positioning block 23 is welded on the keyboard frame 19, when the primary folding positioning block 23 is in contact with a primary folding positioner 20 in primary folding, the folding in place is indicated, and a keyboard rear cover 24 is installed on the keyboard frame 19 through screws.

In order that those skilled in the art will better understand the invention, the following detailed description will proceed with reference being made to specific embodiments.

The working table mainly comprises an installation corner piece 1, a guide bearing 2, a supporting frame 3, a working table positioner 4, a bearing bush 5, a hoop 6, a working table positioning support 7, a bearing assembly 8, a first-level unfolding positioning block 9, a display frame 10, a locking mechanism 11, a wiring support 12, a locking support 13, a display rear cover 14, a rotating shaft 15, a reinforced display 16, a second-level folding positioning support 17, a second-level unfolding limiting block 18, a keyboard frame 19, a first-level folding positioner 20, a reinforced keyboard 21, a table plate 22, a first-level folding positioning block 23 and a keyboard rear cover 24. In the use process, the present embodiment mainly has four states, i.e., a fully folded state, a to-be-unfolded state, a first-stage folded/unfolded state, and a fully unfolded state, which are described below.

Fully folded state: as shown in figures 1 and 2, the workbench is in a completely folded state, the mounting corner fitting 1 is connected with the top of the cab through a screw, when the workbench is folded from a first-stage folded state to a second-stage folded state, the second-stage folded positioning bracket 17 is folded in place when contacting the supporting frame 3, the locking nut 27 of the locking mechanism 11 limits the movement of the locking bracket 13 to achieve the locking purpose, and the positioning pin 36 of the workbench positioner 4 is inserted into the oval hole of the workbench positioning bracket 7 to prevent the workbench from moving along the guide bearing.

A state to be unfolded: as shown in fig. 3, the workbench is in a to-be-unfolded state, and from a completely folded state to the to-be-unfolded state, the positioning pin 36 of the left workbench positioner 4 needs to be pulled out from the workbench positioning bracket 7, then the workbench main body part is pushed to the right side of the guide bearing 2, and the positioning pin 36 of the right workbench positioner 4 is inserted into the oval hole in the right workbench positioning bracket 7.

First-stage unfolded/folded state: as shown in fig. 4, when the workbench is in a first-stage unfolding/folding state, the workbench is in the first-stage unfolding state from the to-be-unfolded state, the locking mechanism 11 needs to be lifted upwards to be separated from the locking bracket 13, and then the main body part of the workbench is turned downwards around the rotating shaft 15 until the display frame 10 contacts with the first-stage unfolding positioning block 9; the working table is turned upwards around the rotating shaft 15 from the fully unfolded state to the first-stage folded state until the first-stage folding positioning block 23 contacts with the first-stage folding positioner 20.

A fully unfolded state: as shown in fig. 5, the table is in the fully extended state, and the table is required to turn the installation-reinforced keyboard portion downward around the rotating shaft 15 from the primary extended state to the fully extended state until the keyboard frame 19 comes into contact with the secondary extension stopper 18.

As shown in fig. 6, which is a schematic view of the mounting corner fitting 1, the upper end surface of the mounting corner fitting is provided with 3 screw holes connected with the top of the cab, the lower end of the mounting corner fitting is provided with two orthogonal planes, each plane is provided with a through hole, one through hole is used for mounting the guide bearing 2, and the other through hole is used for mounting the workbench positioner 4.

As shown in fig. 7, the guide bearing 2 is schematically shown, and both ends are mounted on the mounting angle 1 through the bearing bush 5 and the clip 6.

As shown in FIG. 8, the supporting frame 3 is a schematic view, the middle of the top is a square groove, and two corners of one side are provided with holes for installing the rotating shaft 15.

As shown in fig. 9, the table positioner 4 is schematically shown, and the positioning pin 36 is arranged at the end.

As shown in fig. 10, a schematic view of a bearing bush 5 is shown, one end of which is welded to the mounting angle 1, and the other end is sleeved on the guide bearing 2, and the end is provided with a slot for using expansion.

As shown in fig. 11, a clip 6 is schematically shown, and is mounted on the bearing bush 5 to fix the guide bearing 2.

As shown in fig. 12, which is a schematic view of the table positioning bracket 7, the table positioning bracket 7 is welded on the supporting frame 3, and is provided with an elliptical hole for fixing the pin shaft 36.

As shown in fig. 13, a schematic view of the bearing assembly 8 is provided, in which a circular hole for mounting the guide bearing 2 is provided in the middle, and 4 screw holes for fixing with the support frame 3 are provided at one side.

As shown in fig. 14, which is a schematic view of the primary deployment positioning block 9, the primary deployment positioning block 9 is installed on the support frame 3 by welding.

As shown in fig. 15, in order to schematically illustrate the display frame 10, the display frame 10 is connected to the support frame 3 by a hinge 15, and the reinforcing display 16 is mounted to the display frame 10 by screws.

Fig. 16 is a schematic view of the locking mechanism 15, the locking mechanism 15 includes a rotating shaft 25, a bracket 28, an adjusting screw 26, and a locking nut 25, wherein the bracket 28 is provided with two threaded holes with vertical axes for connecting with the supporting frame 3, the lower end is provided with two holes with horizontal axes for fixing the adjusting screw 26, one end of the adjusting screw 26 is provided with a hole, and the other end can be provided with a locking nut 27, and the rotating shaft 25 passes through the hole at the lower end of the bracket 28 and the hole of the adjusting screw 26 to connect the bracket 28 and the adjusting screw 26 together.

Fig. 17 is a schematic view of the trace frame 12, which is provided with a plurality of elliptical holes for trace.

Fig. 18 is a schematic view of the locking bracket 13, the locking bracket 13 being mounted on the keyboard frame 19 and having a U-shaped hole for securing the locking mechanism 15.

Fig. 19 is a schematic view of the display rear cover 14, which is mounted on the display frame 10 by screws, and the reinforcing display 16 is mounted on the display rear cover 14.

Fig. 20 is a schematic view of the rotating shaft 15, wherein the rotating shaft 15 comprises a shaft 33, a washer 34 and a bushing 35, and the washer 34 and the bushing 35 are sequentially connected to the shaft 33 in a penetrating manner.

Fig. 21 shows the two-stage folding of the positioning bracket 17, which is connected to the display frame 10 by welding.

Fig. 22 is a schematic view of the two-stage unfolding stopper 18, which is connected to the display frame 10 by welding.

Fig. 23 is a schematic view of the keyboard frame 19, and the keyboard frame 19 is connected to the display frame 10 through the rotation shaft 15.

Fig. 24 is a schematic view of a primary folding retainer 20, wherein the primary folding retainer 20 comprises a supplementary washer 29, a neodymium magnet 30, a housing 31, and a cover 32, wherein a semi-cylindrical groove is formed in each of the housing 31 and the cover 32, the neodymium magnet 30 and the supplementary washer 29 are respectively placed in the semi-cylindrical grooves of the housing 31 and the cover 32, and then the housing 31 and the cover 32 are connected together by screws.

Fig. 25 is a schematic view of the desk 22, wherein the desk 22 is mounted on the keyboard frame 19, and the reinforced keyboard 21 is fixed on the desk 22.

Fig. 26 is a schematic view of the primary fold-over locator 23 welded to the keyboard frame 19.

Fig. 27 is a schematic view of the keyboard rear cover 24, and the keyboard rear cover 24 is mounted on the keyboard frame 19.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present disclosure.

Claims (7)

1. A movable double-folding workbench installed on the top of a cab is characterized by comprising a supporting part, a mounting and reinforcing display part and a mounting and reinforcing keyboard part;

the supporting part comprises four mounting angle pieces (1), two guide bearings (2) and a supporting frame (3), wherein two working table positioners (4) are respectively mounted on the two mounting angle pieces (1), the guide bearings (2) are connected with the mounting angle pieces (1), the working table positioning support (7) is welded on the supporting frame (3), a pin shaft (36) on the working table positioner (4) is inserted into a hole of the working table positioning support (7) so as to limit the movement of the working table along the bearings, the supporting frame (3) is connected with the guide bearings (2), two primary unfolding positioning blocks (9) are welded on the supporting frame (3), the primary unfolding positioning blocks (9) are used for determining the rotating angle of the working table when being unfolded at one stage, when the working table is unfolded at one stage, the display frame (10) is unfolded in place when contacting the surface of the primary unfolding positioning blocks (9), a locking mechanism (11) is mounted on the supporting frame (3), and the locking support (13) confirms that the working table is not unfolded automatically when the working table is in a fully folded state by limiting the movement of the locking mechanism (11);

the installation and reinforcement display part comprises a display frame (10) and a display rear cover (14), the display frame (10) is connected with the supporting frame (3) through a rotating shaft, a reinforcement display (16) is installed on the display frame (10), and the display rear cover (14) is connected with the display frame (10) through a screw; the second-stage folding positioning support (17) and the second-stage unfolding limiting block (18) are respectively connected with the display frame (10) in a welding mode, the second-stage folding positioning support (17) is used for determining the closing angle of the workbench during second-stage folding, and when the second-stage folding positioning support (17) contacts the supporting frame (3), the folding is in place; the secondary unfolding limiting block (18) is used for determining the rotating angle of the workbench during secondary unfolding, and the keyboard frame (19) is unfolded in place when contacting the secondary unfolding limiting block (18) during secondary unfolding; the first-stage folding positioner (20) is arranged on the display frame (10) through screws, and the first-stage folding positioner (20) is used for determining the closing angle of the workbench during first-stage folding;

the installation reinforcing keyboard part comprises a keyboard frame (19) and a reinforcing keyboard (21), the keyboard frame (19) is connected with the display frame (10) through a rotating shaft, the reinforcing keyboard (21) is connected with a table plate (22) through screws, the table plate (22) is connected with the keyboard frame (19) through screws, a primary folding positioning block (23) is welded on the keyboard frame (19), and when the primary folding positioning block (23) is in contact with a primary folding positioner (20), the installation reinforcing keyboard part shows that the display frame is folded in place.

2. A movable type double folding table installed at the top of a cab according to claim 1, wherein: guide bearing (2) link to each other with installation corner fitting (1) through bearing bush (5) and clamp (6), bearing bush (5) one end welding in installation corner fitting (1), the other pot head is on guide bearing (2), the cover is served and is equipped with the bearing fluting in one of guide bearing (2), fixes through clamp (6).

3. A movable type double folding table installed at the top of a cab according to claim 1, wherein: the supporting frame (3) is connected with the guide bearing (2) through a bearing assembly (8), a round hole for installing the guide bearing (2) is formed in the middle of the bearing assembly (8), and a screw hole for fixing the supporting frame (3) is formed in one side of the bearing assembly.

4. A movable type double folding table installed at the top of a cab according to claim 1, wherein: locking mechanism (15) including rotation axis (25), support (28), adjusting screw (26), lock nut (25), wherein be equipped with two axes for the vertical direction on support (28) and be connected with braced frame (3) screw hole, the lower extreme is equipped with two axes for the hole that is used for fixed adjusting screw (26) of horizontal direction, the one end of adjusting screw (26) is equipped with the hole, lock nut (27) can be installed to the other end, rotation axis (25) pass the hole of support (28) lower extreme and the hole of adjusting screw (26), link together support (28) and adjusting screw (26).

5. A movable type double-folding work bench installed on the top of a cab according to claim 1, characterized in that: the primary folding positioning device (20) comprises an auxiliary gasket (29), a neodymium magnet (30), a shell (31) and a cover (32), wherein the shell (31) and the cover (32) are respectively provided with a semi-cylindrical groove, the neodymium magnet (30) and the auxiliary gasket (29) are respectively arranged in the semi-cylindrical grooves of the shell (31) and the cover (32), and then the shell (31) and the cover (32) are connected together by screws.

6. A movable type double folding table installed at the top of a cab according to claim 1, wherein: the locking bracket (13) is arranged on the keyboard frame (19) and is provided with a U-shaped hole which is used for fixing the locking mechanism (15).

7. A movable type double folding table installed at the top of a cab according to claim 1, wherein: the rotating shaft comprises a shaft (33), a gasket (34) and a bushing (35), wherein the gasket (34) and the bushing (35) sequentially penetrate through the shaft (33) to be connected together.

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