A frame chassis for compact monitor

Abstract

The present invention relates to the field of monitoring chassis, and specifically to a frame chassis for a compact monitor, comprising a chassis frame, with a sub-board and a main board respectively installed on both sides of the chassis frame, a mounting plate and a back board respectively fixed on the front and rear sides of the chassis frame, an adjustment plate hinged at the junction of the sub-board and the back board, a chassis clamping mechanism is arranged on the adjustment plate, the chassis frame is clamped, and the installation of the chassis is conveniently completed, a clamping and anti-slipping mechanism is arranged between the adjustment plate and the main board, and the clamping and anti-slipping mechanism is arranged between the adjustment plate and the main board, and the clamping and anti-slipping mechanism is used to directly adjust whether the adjustment plate and the main board are directly clamped, thereby facilitating the adjustment of the installation state of the chassis frame and the plug-in and unplugging adjustment of the detector wiring. By using the setting of the adjustment plate, the angle and state of the chassis can be adjusted after the chassis is installed, which is not only suitable for use in a narrow space of a small device, but also convenient for the plug-in and unplugging adjustment of the monitoring machine cable, reducing the difficulty of adjustment, reducing the difficulty of equipment maintenance, and facilitating the adjustment of the device.

Description

Technical Field

[0001] The invention relates to the technical field of monitoring chassis, in particular to a frame chassis for a compact monitor. Background Art

[0002] In the current use of mechanical equipment, the use of various types of sensors has been widely promoted. With the increase in the number of sensors used, the use of integrated chassis for integrating sensor data has also been promoted. However, in the existing integrated chassis dedicated to small equipment, due to the small size of small equipment, the installation space is limited. After the monitoring chassis is installed, there is not much space for subsequent adjustments to the device. Due to the damage and maintenance needs of the sensor, the operator is required to plug and unplug the monitor connection line integrated in the chassis. However, due to the installation position and space limitations of the chassis, the sensor connection line integrated in the chassis is inconvenient to plug and unplug when the chassis is installed, affecting the maintenance or replacement efficiency of the sensor.

[0003] In view of such a situation, the present invention provides a compact monitor frame chassis for the purpose of facilitating the plugging and unplugging of sensor connecting wires integrated into the chassis, facilitating the inspection or replacement of sensors, and reducing the difficulty of installing and using the chassis. Summary of the invention

[0004] In response to the above problems, the present application provides a compact frame chassis for a monitor, which solves the problem mentioned in the above background technology of conveniently plugging and unplugging the sensor connection lines integrated on the chassis, facilitating the inspection or replacement of the sensor, and reducing the difficulty of plugging and unplugging the sensor.

[0005] The technical solution of the present invention is: a frame chassis for a compact monitor, comprising a chassis frame, a sub-board and a main board are respectively installed on both sides of the chassis frame, and a mounting plate and a back board are respectively fixed on the front and rear sides of the chassis frame, characterized in that: an adjustment plate is hinged at the junction of the sub-board and the back board, a chassis clamping mechanism is arranged on the adjustment plate, and a clamping and anti-slipping mechanism is arranged between the adjustment plate and the main board, wherein:

[0006] A chassis clamping mechanism, which is configured to clamp the chassis frame to facilitate installation of the chassis;

[0007] The clamping and anti-slipping mechanism is assembled to facilitate the adjustment of whether the adjustment plate and the main board are directly clamped or not, thereby facilitating the adjustment of the installation state of the chassis frame and facilitating the plug-in and plug-out adjustment of the detector wiring.

[0008] Preferably, the chassis card connection mechanism includes a slide groove, a card slot, a fixed block, a fourth spring, a card block, and a partition. The card slot is opened on the back of the adjustment plate, and the slide groove is opened on the back of the adjustment plate at both ends on one side of the card slot, and the slide groove is connected with the card slot, the fixed block is installed on one side of the slide groove, the card block is slidably carded inside the slide groove, the card block is a frame-type structure, and the partition is installed inside the card block, one end of the fourth spring is installed on the fixed block, and the other end extends into the card block and is connected to the partition.

[0009] Preferably, when the fourth spring is not acted upon by external force and is in a balanced state, the block portion extends into the slot.

[0010] Preferably, the clamping and anti-slip mechanism includes an adjusting column, a through hole, a limiting hole, a connecting groove, a hinge rod, a limiting column, a hinge ring, a base block, a second spring and a base column. The connecting groove is provided on the adjusting plate, the base column is installed at the bottom of the connecting groove, the second spring is sleeved on the outside of the base column, and the other end of the second spring is installed with a base block, the adjusting column is installed on the top of the base block, the adjusting column is a hollow column, and the base column passes through the base block and extends into the adjusting column. A plurality of through holes are provided along the height direction of the adjusting plate, the limiting column is slidably inserted in each through hole, and the limiting hole is arranged along the There are multiple holes in the height direction of the mainboard, and the positions of the through holes and the limiting holes correspond one to one. There are multiple hinge rings along the extension direction of the adjustment column. The spacing between adjacent hinge rings is the same as the spacing between adjacent through holes, and one end of the hinge rod is installed on the hinge ring, and the other end of the hinge rod is installed on the limiting column closest to the hinge ring. When the adjustment column is not subjected to external force and the second spring is in a balanced state, the top of the adjustment column extends out of the connecting groove, and the limiting column is retracted into the through hole. An adjustment column maintaining mechanism is provided between the chassis frame and the adjustment column.

[0011] Preferably, the adjusting column maintaining mechanism includes a fixed frame, a pressure block, a connecting column, a handle, a moving block, a first spring and a top block. The fixed frame is installed on the top of the chassis frame, both ends of the connecting column extend out of the fixed frame, the pressure block is installed on one end of the connecting column extending out of the fixed frame, the moving block is installed on the connecting column, and the moving block and the fixed frame are slidingly connected, the first spring is installed on one end of the moving block away from the pressure block, and the other end of the first spring is installed on the inner wall of the fixed frame, the top block is installed on the top of the adjusting column, and the first spring is in a compressed state when located inside the fixed frame.

[0012] Preferably, when the first spring is located inside the fixed frame and is at its maximum rebound length, the movable block is connected to the side wall of the fixed frame. At this time, the pressure block is located directly above the top block, and the adjustment column retracts into the connecting groove. At this time, the limit column extends out of the through hole and into the limit hole.

[0013] Preferably, a movable ring is installed at the end of the limit column opposite to the hinge rod, and a third spring is sleeved on the outside of the limit column, a fixed ring is installed on the inner wall of the through hole, and the other end of the third spring is installed on the fixed ring. The limit column and the inner wall of the fixed ring are slidingly connected, and when the limit column is inserted into the limit hole, the third spring is in a compressed state.

[0014] Preferably, when the limiting column is retracted into the through hole, the third spring is in a stretched state.

[0015] Preferably, the top block is a wedge-shaped block, and the oblique side of the top block is opposite to the pressing block, and a placement groove is opened on the top of the adjustment plate, and the bottom of the placement groove is connected to the connecting groove.

[0016] Preferably, a handle is installed on the other end of the connecting column extending out of the fixing frame, and a rubber pad is adhered to the outer side of the handle.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) The compact monitor frame chassis described in the present invention can conveniently complete the installation and wiring of various monitoring sensors by installing a main board, a sub-board, a back board and a mounting plate on the mechanical frame. The adjustment plate can be installed, a card slot is opened, and a fixing block, a fourth spring and a card block are set, so that the adjustment plate and the chassis frame can be clamped on the guide rail installed in the small chassis. The card slot clamping method can reduce the difficulty of chassis installation. There is no need to push the card block through the fourth spring, and the clamping connection of the card block to the guide rail can be maintained, thereby improving the installation stability of the chassis. The installation convenience and stability of the device are greatly improved compared with the prior art.

[0019] (2) In the frame chassis for a compact monitor described in the present invention, when no external force is applied, the first spring pushes the moving block so that the pressure block is maintained above the top block, and then the top block is pressed downward so that the adjustment column is retracted into the connecting groove, so that the hinge ring pushes the limit column to slide inside the through hole through the hinge rod, so that the limit column extends from the through hole into the limit hole, completing the clamping connection between the adjustment plate and the main board, thereby facilitating the installation of the chassis, and when it is needed, the operator pulls the handle so that the connecting column drives the pressure block to be recovered, so that the adjustment column is lifted up under the rebound of the second spring, and the rising adjustment column drives the limit column to disengage from the limit hole through the hinge rod and retract into the through hole, so that the adjustment plate and the chassis frame are detached from each other, thereby facilitating the user to flip the chassis frame and turn the main board sideways, thereby facilitating the plugging and unplugging of the sensor connection line on the main board, facilitating the inspection and replacement of the sensor, and facilitating the maintenance of the chassis, so that the convenience of disassembly and repair of the sensor in the device is greatly improved compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A schematic diagram of the overall structure of the chassis provided by the present invention;

[0022] Figure 2 The chassis skeleton structure provided by the present invention is schematically shown Figure 1 ;

[0023] Figure 3 The chassis skeleton structure provided by the present invention is schematically shown Figure 2 ;

[0024] Figure 4 Schematic diagram of the opening structure of the chassis frame adjustment plate provided by the present invention Figure 1 ;

[0025] Figure 5 Schematic diagram of the opening structure of the chassis frame adjustment plate provided by the present invention Figure 2 ;

[0026] Figure 6 Schematic diagram of the opening structure of the chassis frame adjustment plate provided by the present invention Figure 3 ;

[0027] Figure 7 A schematic diagram of the internal structure of the chassis skeleton fixing frame provided by the present invention;

[0028] Figure 8 The cross-sectional structure diagram of the chassis frame adjustment plate provided by the present invention Figure 1 ;

[0029] Fig. 9 The cross-sectional structure diagram of the chassis frame adjustment plate provided by the present invention Figure 2 ;

[0030] Fig.10 for Figure 8 The enlarged structural diagram at A in the middle;

[0031] Fig.11 for Fig. 9 The enlarged structural diagram at B in the middle;

[0032] Fig.12 for Figure 6 Enlarged structural diagram at point C in the middle.

[0033] In the figure: 1. chassis frame; 2. fixed frame; 3. third spring; 4. sub-board; 5. mounting plate; 6. pressure block; 7. top block; 8. adjustment plate; 9. main board; 10. through hole; 11. limit hole; 12. connecting column; 13. grip; 14. moving block; 15. first spring; 16. placement slot; 17. adjusting column; 18. hinge ring; 19. hinge rod; 20. base block; 21. second spring; 22. fixed ring; 23. limit column; 24. moving ring; 25. connecting slot; 26. back plate; 27. slide slot; 28. card slot; 29. ​​fixed block; 30. fourth spring; 31. card block; 32. base column; 33. protective shell; 34. partition. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0035] Example: Figure 1-Figure 12 As shown, an embodiment of the present invention provides a frame chassis for a compact monitor, including a chassis frame 1, a sub-board 4 and a main board 9 are respectively installed on both sides of the chassis frame 1, a mounting plate 5 and a back plate 26 are respectively fixed on the front and rear sides of the chassis frame 1, a plurality of wiring channels are densely arranged on the main board 9, and a terminal is installed on the mounting plate 5 to facilitate the installation and connection of the sensor, an adjustment plate 8 is hinged at the junction of the sub-board 4 and the back plate 26, and a chassis clamping mechanism is provided on the adjustment plate 8 to clamp the chassis frame 1, so as to facilitate the installation of the chassis and facilitate the installation and clamping of a small chassis, a clamping and anti-slipping mechanism is provided between the adjustment plate 8 and the main board 9, so as to facilitate the adjustment of the clamping between the adjustment plate 8 and the main board 9, thereby facilitating the adjustment of the installation state of the chassis frame 1, facilitating the plugging and unplugging of the detector wiring, and facilitating the adjustment of the state of the small chassis.

[0036] In this embodiment, the chassis clamping mechanism includes a slide 27, a clamping slot 28, a fixed block 29, a fourth spring 30, a clamping block 31, and a partition 34. The clamping slot 28 is provided on the back of the adjustment plate 8, and the slide 27 is provided at both ends of the back of the adjustment plate 8 on one side of the clamping slot 28, and the slide 27 is connected to the clamping slot 28, the fixed block 29 is installed on one side of the slide 27, the clamping block 31 is slidably clamped in the slide 27, the clamping block 31 is a frame-type structure, and the partition 34 is installed in the clamping block 31, one end of the fourth spring 30 is installed on the fixed block 29, and the other end extends into the clamping block 31 and connects with the partition 34. During the installation of the small chassis, the clamping slot 28 is aligned with the installation guide rail, and then the chassis frame 1 is pushed until the clamping slot 28 is clamped with the guide rail, and then the clamping block 31 is pushed to cover the guide rail, and the clamping of the guide rail by the clamping block 31 is used to complete the installation of the small chassis.

[0037] Specifically, when the fourth spring 30 is not affected by external force and is in a balanced state, the block 31 partially extends into the slot 28 to maintain the block 31 connected to the guide rail after installation, thereby maintaining the installation state of the small chassis unchanged, so that the small chassis maintains a stable installation state when it is vibrated by external force.

[0038] In this embodiment, the clamping and anti-slipping mechanism includes an adjusting column 17, a through hole 10, a limiting hole 11, a connecting groove 25, a hinge rod 19, a limiting column 23, a hinge ring 18, a base block 20, a second spring 21 and a base column 32. The connecting groove 25 is provided on the adjusting plate 8, the base column 32 is installed at the bottom of the connecting groove 25, the second spring 21 is sleeved on the outside of the base column 32, and the other end of the second spring 21 is installed with the base block 20, the adjusting column 17 is installed on the top of the base block 20, the adjusting column 17 is a hollow column, and the base column 32 passes through the base block 20 and extends The adjusting column 17 is inserted into the inside of the adjusting column 17, and a plurality of through holes 10 are opened along the height direction of the adjusting plate 8. The limiting column 23 is slidably inserted in each through hole 10. A plurality of limiting holes 11 are opened along the height direction of the main board 9. The positions of the through holes 10 and the limiting holes 11 correspond one to one. A plurality of hinge rings 18 are arranged along the extending direction of the adjusting column 17. The spacing between adjacent hinge rings 18 is the same as the spacing between adjacent through holes 10. One end of the hinge rod 19 is installed on the hinge ring 18, and the other end of the hinge rod 19 is installed closest to the hinge ring 18. On the limit column 23, when the adjusting column 17 is not subjected to external force and the second spring 21 is in a balanced state, the top of the adjusting column 17 extends out of the connecting groove 25, and the limit column 23 is retracted into the through hole 10. An adjusting column maintaining mechanism is arranged between the chassis frame 1 and the adjusting column 17. When the adjusting column 17 is not subjected to external force, the rebound force of the second spring 21 on the base block 20 and the adjusting column 17 causes the top of the adjusting column 17 to extend out of the connecting groove 25, so that the limit column 23 follows the rise of the adjusting column 17 under the action of the hinge rod 19. The angle is offset and the position changes, and then when the limit column 23 retracts into the through hole 10, the clamping connection with the limit hole 11 is lost, so as to achieve the clamping effect between the adjustment plate 8 and the main board 9, so that the chassis frame 1 can be rotated around the hinge between the adjustment plate 8 and the back plate 26, so that the chassis frame 1 can be rotated when the small chassis is installed, so as to adjust the status of the main board 9 and the mounting plate 5, facilitate the plug-in and pull-out adjustment of the sensor connection line, facilitate the inspection and adjustment of the entire chassis, and improve the convenience of use of the device.

[0039] Specifically, the adjusting column maintaining mechanism includes a fixed frame 2, a pressure block 6, a connecting column 12, a handle 13, a moving block 14, a first spring 15 and a top block 7. The fixed frame 2 is installed on the top of the chassis frame 1, and a protective shell 33 is arranged outside the fixed frame 2. The protective shell 33 is connected to the chassis frame 1 by a snap buckle. Both ends of the connecting column 12 extend out of the fixed frame 2. The pressure block 6 is installed on one end of the connecting column 12 extending out of the fixed frame 2. The moving block 14 is installed on the connecting column 12, and the moving block 14 is slidably connected with the fixed frame 2. The first spring 15 is installed on one end of the moving block 14 away from the pressure block 6, and the other end of the first spring 15 is installed on the inner wall of the fixed frame 2. On the top, the top block 7 is installed on the top of the adjusting column 17, and the first spring 15 is in a compressed state when it is located inside the fixed frame 2. Therefore, when the connecting column 12 is not subjected to external force, the first spring 15 always pushes the moving block 14 to be close to the inner wall of the fixed frame 2, thereby maintaining the position of the pressing block 6 unchanged, so that the pressing block 6 always presses the top block 7, so that the adjusting column 17 cannot be separated from the connecting groove 25, and finally the connection state of the limiting column 23 to the through hole 10 and the limiting hole 11 remains unchanged, and the purpose of maintaining the card connection between the adjusting plate 8 and the main board 9 is maintained, so as to prevent the small chassis from accidentally causing the chassis frame 1 to lose the stable installation state during use, thereby affecting the normal use of the device.

[0040] Specifically, when the first spring 15 is located inside the fixed frame 2 and is at its maximum rebound length, the moving block 14 is connected to the side wall of the fixed frame 2. At this time, the pressing block 6 is located directly above the top block 7, and the adjusting column 17 retracts into the connecting groove 25. At this time, the limiting column 23 extends out of the through hole 10 and extends into the limiting hole 11. Since the first spring 15 is always in a compressed state inside the fixed frame 2, when no external force is applied, the first spring 15 always pushes the moving block 14 to be close to the inner wall of the fixed frame 2, so that the position of the pressing block 6 remains unchanged, and the position of the pressing block 6 suppresses the top block 7 from rising, and finally makes the adjusting column 17 unable to rise, and thus the stable state of the positioning device remains unchanged.

[0041] Specifically, a movable ring 24 is installed at the end of the limit column 23 opposite to the hinge rod 19, and a third spring 3 is sleeved on the outside of the limit column 23, a fixing ring 22 is installed on the inner wall of the through hole 10, and the other end of the third spring 3 is installed on the fixing ring 22. The limit column 23 is slidably connected with the inner wall of the fixing ring 22, and when the limit column 23 is inserted into the limit hole 11, the third spring 3 is in a compressed state, which can provide a reaction force when the hinge rod 19 pushes the limit column 23 to extend into the limit hole 11, thereby improving the stability of the device state change.

[0042] Specifically, when the limit column 23 retracts into the through hole 10, the third spring 3 is in a stretched state, which applies a reaction force to the limit column 23 when the hinged rod 19 drags the limit column 23 back into the through hole 10, thereby improving the stability of the limit column 23 when the position is dragged, and can drag the hinged rod 19 in the opposite direction when the position of the limit column 23 is adjusted and changed, thereby giving the operator a stronger feedback force.

[0043] Specifically, the top block 7 is a wedge-shaped block, and the oblique side of the top block 7 is opposite to the pressure block 6, and a placement groove 16 is opened on the top of the adjustment plate 8, and the bottom of the placement groove 16 is connected with the connecting groove 25, so that the pressure block 6 can push the top block 7 when the position is adjusted. When the pressure block 6 reaches its maximum stroke distance, it pushes the top block 7 to retract the position of the top block 7, thereby completing a series of adjustments to the device.

[0044] Specifically, a handle 13 is installed at the other end of the connecting column 12 extending out of the fixing frame 2 , and a rubber pad is adhered to the outer side of the handle 13 to facilitate the operator to drag and adjust the connecting column 12 .

[0045] Specific working method: When the operator is in use, the sensor is first installed in place in the small chassis, and all the connecting lines are connected. Then the operator squeezes the card block 31 to align the card slot 28 with the installation guide rail, and then the operator withdraws his hand, and then the card block 31 slides into the position of the card slot 28 under the rebound of the fourth spring 30, thereby covering and snapping the guide rail, and then completing the snap-in installation between the chassis frame 1 and the guide rail. The design of the small chassis is convenient for installation in a narrow space. When the sensor needs to be inspected and maintained, the operator opens the protective shell 33 and then drags the handle 13 to retract the connecting column 12. The retraction of the connecting column 12 causes the position of the pressure block 6 to move backward, and then the top block 7 loses the pressure, and then the adjusting column 17 and the top block 7 move up under the rebound of the second spring 21. At this time, the upward movement of the adjusting column 17 drives the position and angle of the hinged rod 19 to change, and then the limiting column 23 is dragged to move, so that the limiting column 23 is retracted into the through hole 10. At this time, the adjusting column 17 When the connection between the node plate 8 and the main board 9 is lost, the operator can rotate around the hinge between the adjustment plate 8 and the auxiliary board 4, so that the operator can rotate the angle of the small chassis according to the needs, which is convenient for the plugging and unplugging of the sensor connecting line in a narrow space, and improves the convenience of operation. After the operation is completed, the operator resets the chassis frame 1, and then pushes the connecting column 12 to move until the pressure block 6 reaches the maximum stroke point. During the movement of the pressure block 6, due to the design of the wedge-shaped edge of the top block 7, the pressure block 6 can gradually push the top block 7 downward during the movement until the top block 7 is retracted into the placement groove 16. At this time, the adjustment column 17 is retracted into the connection groove 25, and due to the downward movement of the adjustment column 17, the angle and position of the hinge rod 19 are changed, thereby pushing the limit column 23, so that the limit column 23 extends from the through hole 10 into the limit hole 11, completing the connection between the adjustment plate 8 and the main board 9, and then completing the sensor adjustment operation of the small chassis.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compact monitor frame chassis, comprising a chassis frame (1), a sub-board (4) and a main board (9) being mounted on both sides of the chassis frame (1), and a mounting plate (5) and a back plate (26) being fixed on the front and rear sides of the chassis frame (1), characterized in that: An adjustment plate (8) is hingedly connected at the junction of the auxiliary plate (4) and the back plate (26), a chassis clamping mechanism is arranged on the adjustment plate (8), and a clamping and anti-slipping mechanism is arranged between the adjustment plate (8) and the main plate (9), wherein: A chassis clamping mechanism, which is configured to clamp the chassis frame (1) to facilitate installation of the chassis; The clamping and anti-slipping mechanism is assembled to facilitate the adjustment of whether the adjustment plate (8) and the main board (9) are directly clamped or not, thereby facilitating the adjustment of the installation state of the chassis frame (1) and facilitating the plugging and unplugging of the detector wiring; The chassis clamping mechanism comprises a slide groove (27), a clamping groove (28), a fixing block (29), a fourth spring (30), a clamping block (31), and a partition (34); the clamping groove (28) is provided on the back of the adjustment plate (8); the slide groove (27) is provided on the back of the adjustment plate (8) at two ends on one side of the clamping groove (28); the slide groove (27) is connected to the clamping groove (28); the fixing block (29) is installed on one side of the slide groove (27); the clamping block (31) is slidably clamped inside the slide groove (27); the clamping block (31) is a frame-type structure; and the partition (34) is installed inside the clamping block (31); one end of the fourth spring (30) is installed on the fixing block (29); the other end extends into the clamping block (31) and is connected to the partition (34); when the fourth spring (30) is not subjected to external force and is in a balanced state, the clamping block (31) partially extends into the inside of the clamping groove (28); The clamping and anti-slipping mechanism comprises an adjusting column (17), a through hole (10), a limiting hole (11), a connecting groove (25), a hinge rod (19), a limiting column (23), a hinge ring (18), a base block (20), a second spring (21) and a base column (32), wherein the connecting groove (25) is provided on the adjusting plate (8), the base column (32) is mounted at the bottom of the connecting groove (25), the second spring (21) is sleeved on the outside of the base column (32), and the base block (20) is mounted on the other end of the second spring (21), the adjusting column (17) is mounted on the top of the base block (20), the adjusting column (17) is a hollow column, and the base column (32) penetrates the base block (20) and extends into the inside of the adjusting column (17), a plurality of through holes (10) are provided along the height direction of the adjusting plate (8), and the limiting column (23) is provided along the height direction of the adjusting plate (8). The column (23) is slidably inserted into each through hole (10), a plurality of limiting holes (11) are provided along the height direction of the main board (9), and the positions of the through holes (10) and the limiting holes (11) correspond one to one. A plurality of hinge rings (18) are provided along the extension direction of the adjustment column (17), and the spacing between adjacent hinge rings (18) is the same as the spacing between adjacent through holes (10). One end of the hinge rod (19) is mounted on the hinge ring (18), and the other end of the hinge rod (19) is mounted on the limiting column (23) closest to the hinge ring (18). When the adjustment column (17) is not subjected to external force and the second spring (21) is in a balanced state, the top of the adjustment column (17) extends out of the connecting groove (25), and the limiting column (23) is retracted into the through hole (10).

2. The compact monitor frame chassis according to claim 1, characterized in that: An adjustment column maintaining mechanism is provided between the chassis frame (1) and the adjustment column (17).

3. The compact monitor frame chassis as claimed in claim 2, characterized in that: The adjusting column maintaining mechanism comprises a fixed frame (2), a pressure block (6), a connecting column (12), a handle (13), a moving block (14), a first spring (15) and a top block (7); the fixed frame (2) is mounted on the top of the chassis frame (1); both ends of the connecting column (12) extend out of the fixed frame (2); the pressure block (6) is mounted on one end of the connecting column (12) extending out of the fixed frame (2); the moving block (14) is mounted on the connecting column (12); the moving block (14) and the fixed frame (2) are slidably connected; the first spring (15) is mounted on one end of the moving block (14) away from the pressure block (6); the other end of the first spring (15) is mounted on the inner wall of the fixed frame (2); the top block (7) is mounted on the top of the adjusting column (17); and the first spring (15) is in a compressed state when located inside the fixed frame (2).

4. The compact monitor frame chassis as claimed in claim 3, characterized in that: When the first spring (15) is located inside the fixed frame (2) and is at its maximum rebound length, the movable block (14) is connected to the side wall of the fixed frame (2). At this time, the pressing block (6) is located directly above the top block (7), and the adjusting column (17) is retracted into the connecting groove (25). At this time, the limiting column (23) extends out of the through hole (10) and into the limiting hole (11).

5. The compact monitor frame chassis as claimed in claim 2, characterized in that: A movable ring (24) is installed at one end of the limiting column (23) opposite to the hinge rod (19), and a third spring (3) is sleeved on the outer side of the limiting column (23). A fixing ring (22) is installed on the inner side wall of the through hole (10), and the other end of the third spring (3) is installed on the fixing ring (22). The limiting column (23) and the inner side wall of the fixing ring (22) are slidably connected, and when the limiting column (23) is inserted into the limiting hole (11), the third spring (3) is in a compressed state.

6. The compact monitor frame chassis as claimed in claim 5, characterized in that: When the limiting column (23) is retracted into the through hole (10), the third spring (3) is in a stretched state.

7. The compact monitor frame chassis as claimed in claim 3, characterized in that: The top block (7) is a wedge-shaped block, and the inclined edge of the top block (7) is opposite to the pressing block (6). The top of the adjustment plate (8) is provided with a placement groove (16), and the bottom of the placement groove (16) is connected to the connection groove (25).

8. The compact monitor frame chassis as claimed in claim 3, characterized in that: The other end of the connecting column (12) extending out of the fixing frame (2) is provided with a handle (13), and a rubber pad is adhered to the outer side of the handle (13).

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