Vibration-proof damping-adjustable paper frame mechanism convenient to store and suitable for message display and control equipment

Abstract

The invention relates to an anti-vibration convenient-to-store adjustable damping paper frame mechanism suitable for message display and control equipment. A spring locking mechanism, a spring top bead positioning and locking mechanism, a damping paper frame and a magnet are mounted in a groove formed in a control table top of the message display and control equipment; the spring locking mechanism comprises a hook, a long pressure spring, a button and a short pressure spring; the spring top bead positioning and locking mechanism comprises a top bead fixing frame. According to the damping paper frame, through the spring locking mechanism and the spring top bead positioning and locking mechanism, the damping paper frame on the message display and control equipment control table top is prevented from jumping up and swinging in the vibration environment, paper manuscripts are attracted through magnetic attraction, and the message input function is carried out in the vibration environment.

Description

Technical Field

[0001] The present invention belongs to the field of defense / harsh environment display and control equipment application technology, and in particular relates to a vibration-resistant and easy-to-store adjustable damping paper rack mechanism suitable for message display and control equipment. Background Art

[0002] Display and control equipment used in the defense field, especially display and control equipment used in the message field, is mostly used to enter external paper message information into the display and control equipment and distribute instructions.

[0003] The control panel of the message display and control equipment for defense field / harsh environment is usually equipped with keyboard, mouse, status display, KVM, alarm and other functional modules. The space is extremely limited and it is impossible to provide a space the size of a paper file on the plane. In addition, such display and control equipment is mostly used in places such as ships, vehicles and aircraft that may be affected by vibration and shock.

[0004] The message display and control equipment is responsible for processing the input of external paper messages. Due to the limitation of application scenarios, it is impossible to input by scanning, taking photos, etc., and can only type the relevant instruction text on the message. The message clerk either holds the file with his left hand and inputs with his right hand, which seriously affects the efficiency of text information input, or puts random files on the table. However, at this time, the file will fall off the table and block other functional modules due to the vibration impact of the message display and control equipment during movement, which will also cause low input efficiency.

[0005] In view of the above technical problems, a vibration-resistant and easy-to-store adjustable damping paper rack mechanism suitable for message display and control equipment is proposed. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a vibration-resistant, easy-to-store adjustable damping paper rack mechanism suitable for message display and control equipment. Through a spring locking mechanism, a spring top ball positioning locking mechanism and magnetic attraction, the damping paper rack on the control table of the message display and control equipment is prevented from jumping up and swinging in a vibration environment, and the message entry function can be carried out in a vibration environment.

[0007] The present invention solves the technical problem by the following technical solutions:

[0008] A vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for a message display and control device, wherein a groove is provided on a control table of the message display and control device, and a spring locking mechanism, a spring top ball positioning locking mechanism, a damping paper holder and a magnetic suction are installed in the groove;

[0009] The spring locking mechanism comprises a hook, a long compression spring, a button and a short compression spring;

[0010] The spring top ball positioning and locking mechanism comprises a top ball fixing frame;

[0011] The damping paper rack comprises a paper rack main rod, and a foldable left arm and a foldable right arm are respectively installed at the left and right ends of the top of the paper rack main rod, the bottom of the paper rack main rod is installed at one end of the groove, the top of the paper rack main rod is clamped in the groove through a hook located at the other end of the groove, and the paper rack main rod is popped out of the groove through a button located at the front end of the hook, a long compression spring and a short spring located in the middle of the groove;

[0012] A top bead fixing frame is installed at the front end of the bottom of the paper rack main rod installed at one end of the groove, and spring top beads are installed at the left and right ends of the top bead fixing frame. The spring top beads are clamped in the spring top bead grooves at the left and right ends of the bottom of the paper rack main rod to lock the paper rack main rod;

[0013] The magnetic attraction installed on the main rod of the paper rack is removed and respectively placed on the left and right arms at the left and right ends of the top of the main rod of the paper rack, so as to adsorb paper documents on the left and right arms at the left and right ends of the top of the main rod of the paper rack.

[0014] Furthermore, the left support arm and the right support arm are respectively installed on the left and right ends of the top of the main rod of the paper rack through a fixed shaft welded with a pressure plate, a damping sheet and a damping sleeve, and are screwed on the main rod of the paper rack through the pressure plate.

[0015] Furthermore, the main rod of the paper rack is provided with a chamfered hook groove, a magnetic suction groove and a short spring groove from top to bottom; the chamfered hook groove is clamped with a hook; the magnetic suction groove is installed in the magnetic suction groove; and the short spring is installed in the short spring groove.

[0016] Furthermore, the bottom of the paper rack main rod is installed at one end of the groove through a paper rack shaft.

[0017] Furthermore, the hook is installed at the other end of the groove through a shaft.

[0018] Furthermore, the long compression spring is screwed onto the front end of the hook through a spring sleeve.

[0019] Furthermore, after the left arm and the right arm at the left and right ends of the top of the main rod of the paper holder are folded, the folding damping paper holder forms a strip structure and is placed in a groove opened on the control table of the message display and control device.

[0020] Furthermore, the spring top ball grooves located at the left and right ends of the bottom of the paper rack main rod are hemispherical spring top ball grooves.

[0021] The advantages and positive effects of the present invention are:

[0022] 1. The vibration-resistant and easy-to-store adjustable damping paper rack mechanism of the present invention is suitable for message display and control equipment, and provides an easy-to-store adjustable damping paper rack mechanism for the control table of defense field / harsh environment message display and control equipment, so that it can carry out message entry functions in vibration environments such as shipboard, vehicle and aircraft.

[0023] 2. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism of the present invention is suitable for message display and control equipment. When working in a vibration environment, it can clamp paper documents and make them easy for message operators to read within their sight. At the same time, it does not block the display window of the message display and control equipment. When not working, it can be reduced in size and stored in a control table of limited size.

[0024] 3. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism of the present invention is suitable for message display and control equipment. According to the vibration impact force in the environment (ship-mounted, vehicle-mounted and aircraft-mounted) where the message control equipment is located, it is adjusted through the spring top ball positioning and locking mechanism to provide the locking force when the damping paper holder is erected on the control table. It is completed before the spring top ball fixing frame and spring top ball are pre-installed. The spring top plug of the spring top ball is rotated by a tool to increase or decrease the axial space of the internal spring, apply different pressures to the spring and transmit them to the end top ball. When the damping paper holder is erected, the top ball will be inserted into the spring top ball groove at the bottom of the paper holder main rod of the damping paper holder. At this time, the pressure will be transmitted to the damping paper holder, so that it needs to apply a spring force greater than that from the top ball when lifting and closing, so as to achieve the purpose of locking, and is used to adapt to the vibration influence from the external (ship-mounted, vehicle-mounted and aircraft-mounted) environment in the erected state.

[0025] 4. The vibration-resistant and easy-to-store adjustable damping paper rack mechanism suitable for message display and control equipment of the present invention is used to provide friction when the left and right arms of the damping paper rack are lifted and closed by adjusting the pre-tightening force of the M3×8 screws, and to adjust the positive pressure between the pressure plate, the damping sheet, the main rod of the paper rack, the left arm and the right arm, thereby adjusting the friction during rotational motion.

[0026] 5. The vibration-resistant and easy-to-store adjustable damping paper rack mechanism of the present invention is suitable for message display and control equipment. Paper documents are adsorbed on the left and right arms by magnetic attraction, and the paper documents are clamped, which makes it convenient to lay out and take out the paper documents without the need for additional tools.

[0027] 6. The vibration-resistant and easy-to-store adjustable damping paper rack mechanism of the present invention is suitable for message display and control equipment. A rectangular groove is provided on the left front of the control table of the message display and control equipment. The damping paper rack with the left and right arms tightened forms a strip structure, which can be hidden in the rectangular groove after being folded by rotating the paper rack axis. The damping paper rack is closed, locked and popped out by a spring locking mechanism. The damping paper rack is locked after popping out of the rectangular groove by a spring top ball positioning locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an assembly diagram of the vibration-resistant and easy-to-store adjustable damping paper holder mechanism applicable to the message display and control device of the present invention;

[0029] Figure 2A three-dimensional diagram of a damping paper holder for accommodating an adjustable damping paper holder mechanism suitable for a message display and control device of the present invention installed on a control table;

[0030] Figure 3 A front view of a damping paper holder for accommodating an adjustable damping paper holder mechanism suitable for message display and control equipment and resistant to vibration of the present invention;

[0031] Figure 4 For the present invention Figure 3 AA surface section view;

[0032] Figure 5 A cross-sectional portion of a damping paper holder storage state of the present invention, which is suitable for accommodating an adjustable damping paper holder mechanism for a message display and control device and is vibration-resistant;

[0033] Figure 6 A cross-sectional view of a spring top ball positioning and locking mechanism of the damping paper stand in an upright state of the adjustable damping paper stand mechanism suitable for message display and control equipment of the present invention;

[0034] Figure 7 It is an enlarged cross-sectional view of a spring top ball positioning and locking mechanism of the damping paper stand in an upright state of the adjustable damping paper stand mechanism suitable for message display and control equipment of the present invention;

[0035] Figure 8 It is a schematic diagram of the working state of the adjustable damping paper holder mechanism suitable for the message display and control equipment and convenient for storage on the control table of the present invention;

[0036] In the figure:

[0037] 1. Display module, 2. KVM module, 3. Damping paper holder, 4. Alarm module, 5. Control panel, 6. Keyboard module, 7. Mouse module, 8. Switch module, 9. Status display module, 10. Paper document, 11. Magnetic suction, 12. Hook, 13. Button, 14. Long compression spring, 15. Screw assembly, 16. Spring sleeve, 17. Shaft, 18. Short compression spring, 19. Paper holder shaft, 20. Spring top ball, 21. Top ball fixing frame, 3-1. Left support arm, 3-2. Screw, 3-3. Paper holder main rod, 3-4. Right support arm, 3-5. Damping sheet, 3-6. Damping sleeve, 3-7. Fixed shaft, 3-8. Pressing plate, 3-9. Chamfered hook slot, 3-10. Magnetic suction slot, 3-11. Short spring slot, 3-12. Spring top ball groove. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below through specific examples. The following examples are only illustrative and not restrictive, and the protection scope of the present invention cannot be limited thereto.

[0039] A vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment, the message display and control equipment comprising a display module 1, a KVM module 2, an alarm module 4, a control table 5, a keyboard module 6, a mouse module 7, a switch module 8 and a status display module 9; a rectangular groove is provided on the left front of the control table of the message display and control equipment, and a spring locking mechanism, a spring top ball positioning locking mechanism, a damping paper holder 3 and a magnetic suction 11 are installed in the groove.

[0040] The spring locking mechanism comprises a hook 12 , a long compression spring 14 , a button 13 and a short compression spring 18 ; the spring top ball positioning locking mechanism comprises a top ball fixing frame 21 .

[0041] The damping paper rack 3 includes a paper rack main rod 3-3; the left and right ends of the top of the paper rack main rod 3-3 are respectively installed with a foldable left support arm 3-1 and a right support arm 3-4, the bottom of the paper rack main rod 3-3 is installed at one end of the groove, and the top of the paper rack main rod 3-3 is clamped in the groove through a hook 12 located at the other end of the groove, and the paper rack main rod 3-3 pops out of the groove through a button 13 located at the front end of the hook 12, a long compression spring 14 and a short spring located in the middle of the groove.

[0042] A top bead fixing frame 21 is installed at the front end of the bottom of the paper rack main rod 3-3 installed at one end of the groove, and spring top beads 20 are installed at the left and right ends of the top bead fixing frame 21. The spring top beads 20 are clamped in the spring top bead grooves 3-12 located at the left and right ends of the bottom of the paper rack main rod 3-3 to lock the paper rack main rod 3-3.

[0043] The magnetic attraction 11 installed on the main rod 3-3 of the paper rack is removed and placed on the left arm 3-1 and the right arm 3-4 at the left and right ends of the top of the paper rack main rod 3-3, and the paper document 10 is adsorbed on the left arm 3-1 and the right arm 3-4 at the left and right ends of the top of the paper rack main rod 3-3.

[0044] The left support arm 3-1 and the right support arm 3-4 are respectively installed at the left and right ends of the top of the paper rack main rod 3-3 through a fixed shaft 3-7 welded with a pressure plate 3-8, a damping sheet 3-5 and a damping sleeve 3-6, and are screwed on the paper rack main rod 3-3 through the pressure plate 3-8.

[0045] The main rod 3-3 of the paper rack is provided with a chamfered hook groove 3-9, a magnetic suction groove 3-10 and a short spring groove 3-11 from top to bottom; the chamfered hook groove 3-9 is clamped with a hook 12; the magnetic suction groove 3-10 is provided with a magnetic suction 11; and the short spring groove 3-11 is provided with a short spring.

[0046] The bottom of the paper rack main rod 3-3 is installed on one end of the groove through the paper rack shaft 19.

[0047] The hook 12 is mounted on the other end of the groove via the shaft 17 .

[0048] The long compression spring 14 is screwed onto the front end of the hook 12 through a spring sleeve 16 and an M3×12 screw assembly 15 .

[0049] After the left support arm 3-1 and the right support arm 3-4 at the left and right ends of the top of the paper rack main rod 3-3 are folded, the folding damping paper rack 3 forms a strip structure and is placed in a groove opened on the control table of the message display and control device.

[0050] The spring top ball grooves 3-12 located at the left and right ends of the bottom of the paper rack main rod 3-3 are hemispherical spring top ball grooves 3-12.

[0051] Install the left support arm 3-1, and install the damping sheet 3-5 made of wear-resistant nylon PA66 on one end of the fixed shaft 3-7 welded with the pressure plate 3-8. Then use special tools to press the interference fit damping sleeve 3-6 and the left support arm 3-1 onto the fixed shaft 3-7 welded with the pressure plate 3-8, and install the damping sheet 3-5 made of wear-resistant nylon PA66 on the other end of the fixed shaft 3-7 welded with the pressure plate 3-8.

[0052] Install the right support arm 3-4, and install the damping sheet 3-5 made of wear-resistant nylon PA66 on one end of the fixed shaft 3-7 welded with the pressure plate 3-8. Then use special tools to press the interference fit damping sleeve 3-6 and the right support arm 3-4 onto the fixed shaft 3-7 welded with the pressure plate 3-8, and install the damping sheet 3-5 made of wear-resistant nylon PA66 on the other end of the fixed shaft 3-7 welded with the pressure plate 3-8.

[0053] The left support arm 3-1 and the right support arm 3-4 are respectively locked to the paper rack main rod 3-3 by using M3×8 screws 3-2.

[0054] Because the damping sleeve 3-6 is made of wear-resistant nylon PA66, it is installed by interference fit and can provide a certain damping after installation. In addition, the damping plates 3-5 at both ends of the damping sleeve 3-6 are also made of nylon PA66, which has wear-resistant characteristics. Because its material has a certain toughness, it can provide recoverable micro-deformation under the pressure from the pressure plate 3-8. By adjusting the preload force of the M3×8 screw 3-2, the friction between the end face of the damping sleeve 3-6, the end face of the left support arm 3-1, the end face of the right support arm 3-4, and the damping plate 3-5 can be changed to achieve the effect of variable damping, thereby strengthening the supporting force of the left support arm 3-1 and the right support arm 3-4 in the open state under the vibration environment, and adapting to the vibration environment of ships, vehicles and aircraft.

[0055] By adjusting the pre-tightening force of the M3×8 screw 3-2, the friction force is provided when the left arm 3-1 and the right arm 3-4 of the damping paper rack 3 are lifted and closed, and the positive pressure between the pressure plate 3-8, the damping plate 3-5, the paper rack main rod 3-3, the left arm 3-1 and the right arm 3-4 is adjusted, thereby adjusting the friction force during the rotational movement.

[0056] The damping paper rack 3 after the left arm 3-1 and the right arm 3-4 are folded is stored:

[0057] When the damping paper rack 3 after folding the left support arm 3-1 and the right support arm 3-4 is buckled on the control table 5 of the message display and control device, the main rod 3-3 of the paper rack rotates around the paper rack axis 19 toward the control table 5, and the chamfered hook groove 3-9 at the front end of the main rod 3-3 of the paper rack touches the hook 12. The hook 12 rotates clockwise around the axis 17 after receiving external pressure. After the main rod 3-3 of the paper rack enters the rectangular groove opened in the left front of the control table of the message display and control device, the hook 12 rotates counterclockwise around the axis 17 under the pressure of the long compression spring 14. The hook 12 is clamped in the chamfered hook groove 3-9 at the front end of the main rod 3-3 of the paper rack, locking the main rod 3-3 of the paper rack, and can be firmly fixed in the rectangular groove opened in the left front of the control table of the message display and control device when subjected to vibration and impact from the external environment (ship, vehicle and aircraft). When the damping paper rack 3 is stored, the magnetic suction 11 is installed in the magnetic suction groove 3-10 provided on the main rod 3-3 of the paper rack. After the damping paper rack 3 is stored, the spring locking mechanism is used to prevent the damping paper rack 3 on the control table 5 of the message display and control device from jumping up in a vibration environment.

[0058] Lift the damping paper holder 3 after folding the left arm 3-1 and the right arm 3-4:

[0059] When the damping paper rack 3 needs to be lifted after the left arm 3-1 and the right arm 3-4 are folded, the button 13 needs to be pressed. The pressure is transmitted to the hook 12 through the button 13. The hook 12 rotates clockwise around the axis 17 to disengage the paper rack main rod 3-3. The paper rack main rod 3-3 will be subjected to the upward push force from the short compression spring 18, and rotate counterclockwise around the paper rack axis 19 to pop out the rectangular groove opened on the left front of the control table of the message display and control device.

[0060] Lift the damping paper holder 3 after folding the left arm 3-1 and the right arm 3-4 and then lock it:

[0061] A bead fixing frame 21 is installed 10 mm from the front end of the paper rack shaft 19 at the bottom of the paper rack main rod 3-3 installed at one end of the groove. Spring bead fixing frames 20 with adjustable pressure are installed at the left and right ends of the bead fixing frame 21. After the damping paper rack 3 is folded and raised counterclockwise to a vertical state around the paper rack shaft 19, the spring bead fixing frames 20 with adjustable pressure installed at the left and right ends of the bead fixing frame 21 are inserted into the hemispherical spring bead grooves 3-12 at the left and right ends of the bottom of the paper rack main rod 3-3, locking the damping paper rack 3 and preventing it from swinging around the paper rack shaft 19 due to the vibration environment. The spring bead fixing frames 20 with adjustable pressure installed at the left and right ends of the bead fixing frame 21 and the spring bead grooves 3-12 at the left and right ends of the bottom of the paper rack main rod 3-3 can adjust the diameter and pressure to adapt to different external (ship-borne, vehicle-borne and aircraft-borne) vibration environments. When the damping paper rack 3 needs to be stored, a locking force greater than the spring top bead 20 needs to be applied to the damping paper rack 3 clockwise, so that the damping paper rack 3 is disengaged from the spring top bead 20 and can rotate around the paper rack shaft 19 until it is closed. When the damping paper rack 3 is standing up for work, the spring top bead is used to position the locking mechanism to prevent the damping paper rack 3 from swinging around the paper rack shaft 19 due to a vibration environment and thus failing to work.

[0062] Lift and lock the damping paper rack 3 after folding the left arm 3-1 and the right arm 3-4 and work on the control table 5:

[0063] When the damping paper rack 3 is erected on the control table 5, after the damping paper rack 3 is erected and locked and positioned by the spring top bead 20, the magnetic attraction 11 installed in the magnetic attraction groove 3-10 of the paper rack main rod 3-3 is taken out, and external force is applied to the left arm 3-1 and the right arm 3-4, so that they can rotate around the fixed axis 3-7 and unfold to a suitable position, and the paper manuscript 10 is placed on the unfolded left arm 3-1 and the right arm 3-4, and the paper manuscript 10 is adsorbed on the left arm 3-1 and the right arm 3-4 by the magnetic attraction 11, and the paper manuscript 10 is clamped. The reporter compares the message on the paper manuscript 10 and enters the message through the keyboard module 6 and the mouse module 7. Because the magnetic attraction 11 is easy to take, the reporter can adjust the position of the paper manuscript 10 according to different control tables to facilitate reading and identification.

[0064] According to the vibration impact force in the environment (ship, vehicle and aircraft) where the message control equipment is located, the spring top ball positioning and locking mechanism is adjusted to provide the locking force when the damping paper frame 3 is erected on the control table, which is completed before the spring top ball fixing frame 21 and the spring top ball 20 are pre-installed. The spring top plug of the spring top ball 20 is rotated by a tool to increase or decrease the axial space of the internal spring, apply different pressures to the spring and transmit them to the end top ball. When the damping paper frame 3 is erected, the top ball will be inserted into the spring top ball groove 3-12 at the bottom of the paper frame main rod 3-3 of the damping paper frame 3. At this time, the pressure will be transmitted to the damping paper frame 3, so that it needs to apply a spring force greater than the top ball when it is lifted and closed, so as to achieve the purpose of locking, which is used to adapt to the vibration influence from the external (ship, vehicle and aircraft) environment in the erected state.

[0065] Although the embodiments and drawings of the present invention are disclosed for illustrative purposes, those skilled in the art will appreciate that various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment, characterized in that: The control table of the message display and control equipment is provided with a groove, in which a spring locking mechanism, a spring top ball positioning locking mechanism, a damping paper holder and a magnetic suction are installed; The spring locking mechanism comprises a hook, a long compression spring, a button and a short compression spring; The spring top ball positioning and locking mechanism comprises a top ball fixing frame; The damping paper rack comprises a paper rack main rod, and a foldable left arm and a foldable right arm are respectively installed at the left and right ends of the top of the paper rack main rod, the bottom of the paper rack main rod is installed at one end of the groove, the top of the paper rack main rod is clamped in the groove through a hook located at the other end of the groove, and the paper rack main rod is popped out of the groove through a button located at the front end of the hook, a long compression spring and a short spring located in the middle of the groove; A top bead fixing frame is installed at the front end of the bottom of the paper rack main rod installed at one end of the groove, and spring top beads are installed at the left and right ends of the top bead fixing frame. The spring top beads are clamped in the spring top bead grooves at the left and right ends of the bottom of the paper rack main rod to lock the paper rack main rod; The magnetic attraction installed on the main rod of the paper rack is removed and respectively placed on the left and right arms at the left and right ends of the top of the main rod of the paper rack, so as to adsorb paper documents on the left and right arms at the left and right ends of the top of the main rod of the paper rack.

2. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment according to claim 1 is characterized in that: The left support arm and the right support arm are respectively installed on the left and right ends of the top of the main rod of the paper rack through a fixed shaft welded with a pressure plate, a damping sheet and a damping sleeve, and are screwed on the main rod of the paper rack through the pressure plate.

3. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment according to claim 1 is characterized in that: The main rod of the paper rack is provided with a chamfered hook groove, a magnetic suction groove and a short spring groove from top to bottom; the chamfered hook groove is clamped with a hook; the magnetic suction groove is installed in the magnetic suction groove; and the short spring is installed in the short spring groove.

4. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment according to claim 1 is characterized in that: The bottom of the paper rack main rod is installed on one end of the groove through the paper rack shaft.

5. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment according to claim 1 is characterized in that: The hook is installed at the other end of the groove through a shaft.

6. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment according to claim 1 is characterized in that: The long compression spring is screwed on the front end of the hook through a spring sleeve.

7. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment according to claim 1 is characterized in that: After the left support arm and the right support arm at the left and right ends of the top of the main rod of the paper rack are folded, the folding damping paper rack forms a strip structure and is placed in a groove opened on the control table of the message display and control device.

8. The vibration-resistant and easy-to-store adjustable damping paper holder mechanism suitable for message display and control equipment according to claim 1 is characterized in that: The spring top ball grooves located at the left and right ends of the bottom of the paper rack main rod are hemispherical spring top ball grooves.

Images