Printer shaft easy to disassemble and assemble

Abstract

The printer shaft easy to disassemble and assemble comprises a main shaft, installation cylinders are arranged at the left end and the right end of the main shaft, connecting rotating shafts are fixedly installed on the installation cylinders, threaded sleeves are rotationally connected to the left side and the right side of the main shaft, and connecting rings are rotationally connected to the sides, away from the main shaft, of the threaded sleeves. The connecting ring is located in the mounting cylinder and slidably connected with the inner wall of the mounting cylinder, and the inner wall of the mounting cylinder is fixedly connected with a contraction spring. According to the utility model, the mounting cylinder and the connecting rotating shaft which are connected through the contraction spring are arranged on the two sides of the printer main shaft, so that the connecting rotating shaft can move when the contraction spring contracts in the disassembly and assembly process, the clamping of the connecting rotating shaft can be quickly completed, and the disassembly and assembly of the main shaft can be facilitated; and meanwhile, through matched use of the threaded sleeve and the threaded column, the contraction spring can be kept stable after installation, and then stable operation of the main shaft is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of printer shaft installation, in particular to an easily detachable printer shaft. Background Art

[0002] At present, the printer is one of the output devices of the computer, which is used to print the computer processing results on the relevant media. There are three indicators to measure the quality of the printer: printing resolution, printing speed and noise. There are many types of printers. According to whether the printing element has an impact action on the paper, it is divided into impact printers and non-impact printers. According to the structure of the printed characters, it is divided into full-width character printers and dot matrix character printers. According to the way a line of characters is formed on the paper, it is divided into string printers and line printers. According to the technology used, it is divided into cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic, light-emitting diode and other printers.

[0003] However, the existing printer shaft is often difficult to disassemble during installation and disassembly, which wastes a lot of time during installation and disassembly, and is inconvenient for people to install.

[0004] After searching, patent application number CN202120829156.6 discloses an easily disassembled printer shaft, including a first main shaft, a second main shaft, a spring and a first telescopic rod, a first cylinder is provided at the right end of the first main shaft, and a second cylinder is provided at the left end of the second main shaft, a rotating shaft is provided on the right surface of the first cylinder and the left surface of the second cylinder, a first spring groove is provided on the right surface of the first main shaft and the left surface of the second main shaft, a second spring groove is provided inside the first cylinder and the second cylinder, and a telescopic mechanism and a spring are provided between each first spring groove and each second spring groove. Compared with the prior art, the utility model has the following beneficial effects: by providing the first cylinder, the second cylinder, the spring, the first telescopic rod, the second telescopic rod and the baffle, it is convenient for the staff to disassemble and install the printer shaft, and by providing the first magnet and the second magnet, the first main shaft and the second main shaft can be firmly connected together.

[0005] This structure divides the printer shaft into two main shafts and connects them by springs, so that the two shafts can be compressed and locked and then reset by spring rebound. However, this structure results in low integrity of the main shafts. During use, there are gaps in the main shafts, and the spring support may cause lateral movement during the rotation of the main shafts. This is not stable enough and affects the use of the printer. Therefore, professionals hereby provide an easily disassembled printer shaft to solve the above-mentioned problems. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an easily disassembled printer shaft, by arranging a mounting cylinder and a connecting shaft connected by a contraction spring on both sides of the printer main shaft, so as to facilitate the disassembly and assembly of the main shaft, thereby maintaining the stable operation of the main shaft.

[0007] To achieve the above purpose, the utility model adopts the following technical solution.

[0008] A printer shaft that is easy to disassemble and assemble comprises a main shaft, wherein both left and right ends of the main shaft are provided with mounting cylinders, a connecting rotating shaft is fixedly installed on the mounting cylinder, both left and right sides of the main shaft are rotatably connected with threaded sleeves, a side of the threaded sleeve away from the main shaft is rotatably connected with a connecting ring, the connecting ring is located inside the mounting cylinder and is slidably connected to the inner wall of the mounting cylinder, a contraction spring is fixedly connected to the inner wall of the mounting cylinder, the other end of the contraction spring is fixedly connected to the connecting ring, mounting grooves are provided on both sides of the main shaft, a threaded column is provided inside the mounting groove, the other end of the threaded column passes through the threaded sleeve and the connecting ring and contacts with the inner wall of the mounting cylinder, the outer ring of the threaded column is threadedly connected to the inner wall of the threaded sleeve, a limiting shaft is fixedly connected to the inner wall of the mounting cylinder, and the threaded column is slidably connected to the limiting shaft.

[0009] As a further description of the above technical solution: the outer ring of the threaded sleeve is fixedly connected with a cushion, and the cushion is provided with evenly distributed anti-slip grooves.

[0010] As a further description of the above technical solution: a rectangular groove is opened on the threaded column, and the limiting shaft is located inside the rectangular groove and is slidably connected to the inner wall of the rectangular groove.

[0011] As a further description of the above technical solution: the top and the bottom of the connecting ring are fixedly connected with guide blocks, and the guide blocks are slidably connected to the inner wall of the mounting tube.

[0012] As a further description of the above technical solution: a damping pad is fixedly connected to the side of the threaded column away from the mounting groove, and the damping pad is made of rubber material.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] In the utility model, a mounting cylinder and a connecting shaft connected by a contraction spring are arranged on both sides of the printer main shaft, so that during the disassembly process, the position of the connecting shaft can be moved when the contraction spring contracts, thereby facilitating the fastening of the connecting shaft, and facilitating the disassembly of the main shaft. At the same time, the contraction spring can be kept stable after installation through the coordinated use of the threaded sleeve and the threaded column, thereby maintaining stable operation of the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the threaded sleeve of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Main shaft; 2. Mounting cylinder; 3. Connecting shaft; 4. Threaded sleeve; 5. Connecting ring; 6. Contraction spring; 7. Mounting groove; 8. Threaded column; 9. Limiting shaft; 10. Soft pad; 11. Rectangular groove; 12. Guide block; 13. Damping pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figures 1 to 4 The utility model provides an easily disassembled printer shaft, comprising a main shaft 1, a mounting cylinder 2 is provided at both ends of the main shaft 1, a connecting shaft 3 is fixedly installed on the mounting cylinder 2, a threaded sleeve 4 is rotatably connected to the left and right sides of the main shaft 1, a connecting ring 5 is rotatably connected to the side of the threaded sleeve 4 away from the main shaft 1, the connecting ring 5 is located inside the mounting cylinder 2 and is slidably connected to the inner wall of the mounting cylinder 2, a contraction spring 6 is fixedly connected to the inner wall of the mounting cylinder 2, and the other end of the contraction spring 6 is fixedly connected to the connecting ring 5, mounting grooves 7 are provided on both sides of the main shaft 1, a threaded column 8 is provided inside the mounting groove 7, the other end of the threaded column 8 passes through the threaded sleeve 4 and the connecting ring 5 and contacts the inner wall of the mounting cylinder 2, the outer ring of the threaded column 8 is threadedly connected to the inner wall of the threaded sleeve 4, a limiting shaft 9 is fixedly connected to the inner wall of the mounting cylinder 2, and the threaded column 8 is slidably connected to the limiting shaft 9, wherein the connecting shaft 3 is a schematic diagram, and its shape needs to fit the printer connection position to achieve quick engagement.

[0023] A rectangular groove 11 is formed on the threaded column 8 , and the limiting shaft 9 is located inside the rectangular groove 11 and is slidably connected to the inner wall of the rectangular groove 11 .

[0024] When the printer shaft needs to be installed, the threaded column 8 does not contact the inner wall of the installation cylinder 2 at this time, and the threaded column 8 is located inside the installation groove 7. Then the user holds the installation cylinder 2 on both sides with both hands, and then the user moves the installation cylinder 2 toward the main shaft 1. At this time, the contraction spring 6 begins to contract and generates an opposite force. The installation cylinder 2 begins to move on the main shaft 1 under the action of the connecting ring 5, thereby changing the positions of the two connecting shafts 3. Then the user moves the main shaft 1 into the printer so that the connecting shaft 3 is located at the printer connection position. Then the user reduces the force applied to the installation cylinder 2, so that the contraction spring 6 gradually begins to return. The connecting shaft 3 gradually enters the printer installation position until the installation is completed. At this time, the printer spindle 1 completes the preliminary positioning. Then the user rotates the threaded sleeve 4, and the threaded column 8 threadedly connected to the threaded sleeve 4 begins to move laterally. The limiting shaft 9 slides inside the rectangular groove 11 to make the threaded sleeve 4 continue to rotate so that the threaded column 8 fits the inner wall of the installation cylinder 2. At this time, the spindle 1 remains stable and the installation is completed. When disassembly is required, the user rotates the threaded sleeve 4 in the opposite direction to reset the threaded column 8 and separate it from the inner wall of the installation cylinder 2. Then the installation cylinder 2 is pulled to deform the contraction spring 6, and the connecting shaft 3 can be pulled out from the inside of the printer to complete the disassembly.

[0025] In the utility model, the installation cylinder 2 and the connecting shaft 3 connected by the contraction spring 6 are arranged on both sides of the printer main shaft 1, so that the position of the connecting shaft 3 can be moved when the contraction spring 6 contracts during the disassembly process, thereby facilitating the fastening of the connecting shaft 3, and facilitating the disassembly of the main shaft 1. At the same time, the contraction spring 6 can be kept stable after installation through the coordinated use of the threaded sleeve 4 and the threaded column 8, thereby maintaining the stable operation of the main shaft 1.

[0026] See also Figures 1 to 4 , wherein: the outer ring of the threaded sleeve 4 is fixedly connected with a soft pad 10, and the soft pad 10 is provided with evenly distributed anti-slip patterns.

[0027] In the utility model, when a user needs to rotate the threaded sleeve 4, the soft pad 10 can provide a fulcrum for the user, and the anti-skid pattern can prevent the user from slipping.

[0028] See also Figures 2 to 4 , wherein: the top and the bottom of the connecting ring 5 are fixedly connected with a guide block 12, and the guide block 12 is slidably connected to the inner wall of the mounting tube 2.

[0029] In the utility model, the setting of the guide block 12 can limit the connecting ring 5, so that the connecting ring 5 is always located inside the installation tube 2 to maintain stable movement in the horizontal direction, and at the same time can improve the stability of the main shaft 1.

[0030] See also Figure 2 and3 , wherein: a damping pad 13 is fixedly connected to a side of the threaded column 8 away from the mounting groove 7, and the damping pad 13 is made of rubber material.

[0031] In the utility model, when the user rotates the threaded sleeve 4 to move the threaded column 8, the damping pad 13 of the rubber material will first contact the installation tube 2. The setting of the damping pad 13 can avoid wear and tear, and at the same time can increase friction and have a certain deformation capacity.

[0032] The above are only preferred specific implementations of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An easily detachable printer shaft, comprising a main shaft (1), characterized in that: The left and right ends of the main shaft (1) are both provided with mounting tubes (2), a connecting shaft (3) is fixedly mounted on the mounting tube (2), the left and right sides of the main shaft (1) are both rotatably connected with threaded sleeves (4), the side of the threaded sleeve (4) away from the main shaft (1) is rotatably connected with a connecting ring (5), the connecting ring (5) is located inside the mounting tube (2) and is slidably connected to the inner wall of the mounting tube (2), a contraction spring (6) is fixedly connected to the inner wall of the mounting tube (2), and the contraction spring (6) is The other end is fixedly connected to the connecting ring (5). Both sides of the main shaft (1) are provided with mounting grooves (7). A threaded column (8) is arranged inside the mounting groove (7). The other end of the threaded column (8) passes through the threaded sleeve (4) and the connecting ring (5) and contacts the inner wall of the mounting tube (2). The outer ring of the threaded column (8) is threadedly connected to the inner wall of the threaded sleeve (4). A limiting shaft (9) is fixedly connected to the inner wall of the mounting tube (2). The threaded column (8) is slidably connected to the limiting shaft (9).

2. The easily detachable printer shaft according to claim 1, characterized in that: The outer ring of the threaded sleeve (4) is fixedly connected with a soft pad (10), and the soft pad (10) is provided with evenly distributed anti-slip patterns.

3. The easily detachable printer shaft according to claim 1, characterized in that: The threaded column (8) is provided with a rectangular groove (11), and the limiting shaft (9) is located inside the rectangular groove (11) and is slidably connected to the inner wall of the rectangular groove (11).

4. The easily detachable printer shaft according to claim 1, characterized in that: The top and bottom of the connecting ring (5) are both fixedly connected with guide blocks (12), and the guide blocks (12) are slidably connected to the inner wall of the mounting tube (2).

5. The easily detachable printer shaft according to claim 1, characterized in that: A damping pad (13) is fixedly connected to the side of the threaded column (8) away from the mounting groove (7), and the damping pad (13) is made of rubber material.

Images