Anti-interference shielding printer wire harness

Abstract

The utility model discloses an anti-interference shielding printer wire harness, and relates to the printer wire harness technology field, the anti-interference shielding printer wire harness comprises a wire harness body and a connector lug, the outer wall of the connector lug is sleeved with a retention frame in an initial state, and the retention frame is internally provided with a butt joint through groove matched with the connector lug; according to the utility model, the inclined surfaces of the second retention block (triangle) and the first retention block (triangle) abut against each other to form a wedge-shaped effect and generate continuous inward pushing force, so that the connector lug cannot automatically displace during non-manual operation, poor contact caused by vibration, external force and the like is avoided, the anti-interference capability of the wire harness connector is improved, and meanwhile, the anti-interference capability of the wire harness connector is improved. The abutting spring and the telescopic spring provide elastic support for the first retention block and the second retention block respectively, after the connector lug is plugged, the elastic force of the springs can push the first retention block and the second retention block to reset, it is ensured that the connector lug is tightly fixed in the interface all the time, and interference or interruption in signal transmission is reduced.

Description

Technical Field

[0001] This utility model relates to the field of printer wiring harness technology, specifically an anti-interference shielded printer wiring harness. Background Technology

[0002] In modern office automation systems, printers, as crucial output devices, directly impact office efficiency and document output quality through their performance stability and data transmission accuracy. Printer wiring harnesses, as key components connecting internal printer parts and external devices, perform multiple functions, including transmitting control, power, and data signals.

[0003] However, with the increasing integration of electronic devices and the growing complexity of office environments, printer wiring harnesses face numerous interference problems. On the one hand, there are a large number of electronic devices in the office, such as computers, routers, and wireless communication devices. These devices generate electromagnetic radiation of various frequencies during operation, which can easily couple to the printer wiring harness, causing signal transmission distortion, bit errors, and other phenomena, seriously affecting the normal operation of the printer.

[0004] Most existing anti-interference printer harnesses simply add an anti-interference layer directly to the surface of the harness. While this method can achieve anti-interference effects, it has many limitations. For example, the harness connectors need to be exposed because they need to connect to different parts. However, the connectors are also where electromagnetic interference can easily penetrate, and their performance and quality directly affect the overall performance of the printer. Especially with frequent plugging and unplugging, the connectors inevitably become loose or misaligned, leaving some connectors exposed and subject to interference.

[0005] Therefore, an anti-interference shielded printer wiring harness is provided to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this invention is to provide an anti-interference shielded printer wiring harness to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides an anti-interference shielded printer wiring harness, including a wiring harness body and a connector. In its initial state, a retaining frame is fitted onto the outer wall of the connector. The retaining frame has a mating groove adapted to the connector. A receiving groove is formed on the side wall of the mating groove. A telescopic rod is fixedly installed inside the receiving groove. A second retaining block in the shape of a triangle is fixedly connected to the side of the telescopic rod away from the mating groove. A telescopic spring is fixedly connected between the second retaining block and the inner wall of the receiving groove. A sealing guide groove is formed on the outer wall of the connector. A movable first retaining block, also in the shape of a triangle, is provided on one side of the sealing guide groove.

[0008] Furthermore, the sealing guide groove is adapted to the first fixing block of the wire harness body. The outer wall of the sealing guide groove is provided with a first mating hole with an inverted "convex" cross-section. An abutment rod is fixedly connected to the inner wall of the first fixing block. A first guide rod is fixedly connected to one side of the abutment rod. The abutment rod and the first guide rod are adapted to the first mating hole.

[0009] Furthermore, an abutment spring is fixedly connected between the outer wall of the abutment rod and the inner wall of the first mating hole.

[0010] Furthermore, a second mating hole is provided on the outer wall of the sealing guide groove, and a limiting ring with a through groove in the middle is fixedly installed at the inner edge of the second mating hole. A second guide rod is fixedly installed on the side wall of the first fixing block, and one end of the second guide rod is fixedly connected to the limiting block. The limiting block and the second mating hole are mutually adapted, and the second guide rod and the limiting ring are mutually adapted.

[0011] Furthermore, the specific number of the first retaining blocks is four, with the first retaining blocks provided on both sides of the outer wall of one of the connectors, and the two first retaining blocks on the same side are arranged symmetrically.

[0012] Furthermore, a pressing block is fixedly installed at the edge of the first retaining block, and a semi-circular groove is formed on the side wall of the pressing block.

[0013] Furthermore, a double-sided adhesive strip is adhered to the side of the retaining frame away from the wire harness body, and the double-sided adhesive strip is specifically shaped as a square frame with a square groove inside.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. During use, the second retaining block (triangle) and the inclined surface of the first retaining block (triangle) abut against each other, forming a wedge effect and generating a continuous inward pushing force. This prevents the connector from shifting on its own when not manually operated, avoiding poor contact caused by vibration or external force, and improving the anti-interference capability of the connector. At the same time, the abutting spring and the telescopic spring provide elastic support for the first and second retaining blocks, respectively. After the connector is plugged in or unplugged, the spring force can push both blocks to reset, ensuring that the connector is always tightly fixed in the interface, reducing interference or interruption in signal transmission.

[0016] 2. The semi-circular groove on the edge makes it easier for users to apply force. When squeezed, it can drive the first retaining block to retract, relieve the resistance of the wedge-shaped contact, make the wire pull-out operation easier, and reduce damage to components caused by improper force. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the unfolded structure on the other side of this utility model;

[0020] Figure 4 This is a schematic diagram of the unfolded structure of another side of this utility model.

[0021] In the diagram: 1. Wiring harness body; 2. Connector; 3. Retention frame; 4. Double-sided adhesive strip; 5. Connecting slot;

[0022] 6. First retaining block; 61. Abutting rod; 62. First guide rod; 63. Abutting spring; 64. Limiting block; 65. Second guide rod;

[0023] 7. Pressing block; 8. Second retaining block; 9. Telescopic rod; 10. First mating hole; 11. Second mating hole; 12. Limiting ring; 13. Telescopic spring; 14. Receiving groove; 15. Sealing guide groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] See Figure 1-4 An anti-interference shielded printer wiring harness includes a wiring harness body 1 and a connector 2. In the initial state, a retaining frame 3 is fitted on the outer wall of the connector 2. The retaining frame 3 has a mating groove 5 adapted to the connector 2 inside. A receiving groove 14 is formed on the side wall of the mating groove 5. A telescopic rod 9 is fixedly installed inside the receiving groove 14. A second retaining block 8 in the shape of a triangle is fixedly connected to the side of the telescopic rod 9 away from the mating groove 5. A telescopic spring 13 is fixedly connected between the second retaining block 8 and the inner wall of the receiving groove 14. A sealing guide groove 15 is formed on the outer wall of the connector 2. A movable first retaining block 6 in the shape of a triangle is provided on one side of the sealing guide groove 15.

[0027] Furthermore, the sealing guide groove 15 is adapted to the first retaining block 6 of the wire harness body 1. The outer wall of the sealing guide groove 15 is provided with a first docking hole 10 with an inverted "convex" cross-section. An abutment rod 61 is fixedly connected to the inner wall of the first retaining block 6. A first guide rod 62 is fixedly connected to one side of the abutment rod 61. The abutment rod 61 and the first guide rod 62 are adapted to the first docking hole 10. An abutment spring 63 is fixedly connected between the outer wall of the abutment rod 61 and the inner wall of the first docking hole 10.

[0028] By setting the cross-sectional shape of the first docking hole 10 to an inverted "convex" shape, and by adapting the abutting rod 61 and the first guide rod 62 to the first docking hole 10, the first docking hole 10 can smoothly accommodate the abutting rod 61 and the first guide rod 62 at the same time, thereby facilitating the smooth retraction of the first retaining block 6. Furthermore, by setting the abutting spring 63, the first retaining block 6 can be reset by utilizing the elastic force of the abutting spring 63 after its initial position changes.

[0029] Furthermore, a second mating hole 11 is provided on the outer wall of the sealing guide groove 15. A limiting ring 12 with a through groove in the middle is fixedly installed at the inner edge of the second mating hole 11. A second guide rod 65 is fixedly installed on the side wall of the first fixing block 6. One end of the second guide rod 65 is fixedly connected to a limiting block 64. The limiting block 64 and the second mating hole 11 are mutually adapted, and the second guide rod 65 and the limiting ring 12 are mutually adapted.

[0030] By setting a second mating hole 11 and a limiting ring 12 with a through groove in the middle, and by setting the second mating hole 11 and the limiting ring 12 to be adapted to the limiting block 64 and the second guide rod 65 respectively, the second guide rod 65 can move through the through groove in the middle of the limiting ring 12, while the limiting block 64 can only move inside the second mating hole 11. This guides and restricts the movement direction of the first retaining block 6, and also prevents the first retaining block 6 from directly detaching from both sides of the connector 2, so that the wire harness can be used more stably.

[0031] In addition, there are four first retaining blocks 6. The first retaining blocks 6 are provided on both sides of the outer wall of a connector 2, and the two first retaining blocks 6 on the same side are symmetrically arranged.

[0032] In addition, a pressing block 7 is fixedly installed on the edge of the first retaining block 6. A semi-circular groove is provided on the side wall of the pressing block 7. By setting the pressing block 7, the user can more easily drive the first retaining block 6 to move. The specific shape of the pressing block 7 as a semi-circular groove makes it more comfortable for the user to press the pressing block 7, which can improve the user experience.

[0033] It should be noted that a double-sided adhesive strip 4 is attached to the side of the retaining frame 3 away from the wire harness body 1. The double-sided adhesive strip 4 is a square frame with a square groove inside.

[0034] By setting up double-sided adhesive strip 4, and setting the specific shape of double-sided adhesive strip 4 as a square frame with a square groove inside, the fixing frame 3 can be glued to the fixed position by double-sided adhesive strip 4 after the wire harness is used for the first time, without interfering with the normal insertion and removal of the connector 2.

[0035] In practice, most conventional printer harnesses with anti-interference capabilities achieve their anti-interference effect by directly adding an anti-interference layer to the surface of the harness. While this method can achieve the anti-interference effect, it directly ignores the protection of the connectors. As components that are frequently plugged and unplugged, no matter how good the initial anti-interference effect is, after a long period of plugging and unplugging, the connectors will inevitably become loose and misaligned, resulting in some connectors being directly exposed and causing the harness to be interfered with.

[0036] In this practical application, when the wire harness body 1 is used for the first time, the retaining frame 3 and the connector 2 need to be installed together. After the retaining frame 3 is installed, the connector 2 will be directly inside the retaining frame 3 and protected by the retaining frame 3. At the same time, the inner inclined surface of the movable second retaining block 8 installed on the inner wall of the connecting groove 5 and the outer inclined surface of the movable first retaining block 6 installed on the outer wall of the connector 2 abut against each other, which will produce a wedge effect. This will make the first retaining block 6 inside always subject to an inward pushing force, and it will not be able to move without human intervention. At the same time, since the pushing force generated between the first retaining block 6 and the second retaining block 8 is provided by the contact spring 63 and the extension spring 13 respectively, the connector 2 can always be stably inside the interface after plugging and unplugging when both are elastic, and will not be easily affected by the external environment.

[0037] When the user needs to pull the connector 2 out of the interface, he / she can directly squeeze the two pressing blocks 7 at the same time, so that the pressing blocks 7 drive the first retaining block 6 to fit into the sealing guide groove 15, so that the contact spring 63 no longer directly acts, thereby reducing the resistance to pulling out the connector 2 and making it easier for the user to pull out the wire harness body 1 and the connector 2.

[0038] During use, the inclined surfaces of the second retaining block 8 (triangle) and the first retaining block 6 (triangle) abut against each other, forming a wedge effect and generating a continuous inward pushing force. This prevents the connector 2 from shifting on its own when not manually operated, avoiding poor contact caused by vibration, external force, etc., and improving the anti-interference capability of the connector. At the same time, the abutting spring 63 and the telescopic spring 13 provide elastic support for the first retaining block 6 and the second retaining block 8, respectively. After the connector 2 is plugged in or unplugged, the spring force can push both to reset, ensuring that the connector 2 is always tightly fixed in the interface, reducing interference or interruption in signal transmission.

[0039] The semi-circular groove on the edge of the 7-piece connector makes it easier for the user to apply force. When squeezed, it can cause the first retaining block 6 to retract, thereby relieving the resistance of the wedge-shaped contact and making it easier to pull out the connector 2, reducing damage to components caused by improper force.

[0040] Working principle: Most conventional printer harnesses with anti-interference capabilities achieve their anti-interference effect by directly adding an anti-interference layer to the surface of the harness. While this method can achieve the anti-interference effect, it directly ignores the protection of the connectors. As components that are frequently plugged and unplugged, no matter how good the initial anti-interference effect is, after long-term plugging and unplugging, the connectors will inevitably become loose and misaligned, resulting in some connectors being directly exposed and causing the harness to be interfered with.

[0041] In this practical application, when the wire harness body 1 is used for the first time, the retaining frame 3 and the connector 2 need to be installed together. After the retaining frame 3 is installed, the connector 2 will be directly inside the retaining frame 3 and protected by the retaining frame 3. At the same time, the inner inclined surface of the movable second retaining block 8 installed on the inner wall of the connecting groove 5 and the outer inclined surface of the movable first retaining block 6 installed on the outer wall of the connector 2 abut against each other, which will produce a wedge effect. This will make the first retaining block 6 inside always subject to an inward pushing force, and it will not be able to move without human intervention. At the same time, since the pushing force generated between the first retaining block 6 and the second retaining block 8 is provided by the contact spring 63 and the extension spring 13 respectively, the connector 2 can always be stably inside the interface after plugging and unplugging when both are elastic, and will not be easily affected by the external environment.

[0042] When the user needs to pull the connector 2 out of the interface, he / she can directly squeeze the two pressing blocks 7 at the same time, so that the pressing blocks 7 drive the first retaining block 6 to fit into the sealing guide groove 15, so that the contact spring 63 no longer directly acts, thereby reducing the resistance to pulling out the connector 2 and making it easier for the user to pull out the wire harness body 1 and the connector 2.

[0043] During use, the inclined surfaces of the second retaining block 8 (triangle) and the first retaining block 6 (triangle) abut against each other, forming a wedge effect and generating a continuous inward pushing force. This prevents the connector 2 from shifting on its own when not manually operated, avoiding poor contact caused by vibration, external force, etc., and improving the anti-interference capability of the connector. At the same time, the abutting spring 63 and the telescopic spring 13 provide elastic support for the first retaining block 6 and the second retaining block 8, respectively. After the connector 2 is plugged in or unplugged, the spring force can push both to reset, ensuring that the connector 2 is always tightly fixed in the interface, reducing interference or interruption in signal transmission.

[0044] The semi-circular groove on the edge of the 7-piece connector makes it easier for the user to apply force. When squeezed, it can cause the first retaining block 6 to retract, thereby relieving the resistance of the wedge-shaped contact and making it easier to pull out the connector 2, reducing damage to components caused by improper force.

[0045] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An anti-interference shielded printer wiring harness, comprising a wiring harness body (1) and a connector (2), characterized in that, In its initial state, a retaining frame (3) is fitted on the outer wall of the connector (2). The retaining frame (3) has a mating groove (5) adapted to the connector (2) inside. A receiving groove (14) is provided on the side wall of the mating groove (5). A telescopic rod (9) is fixedly installed inside the receiving groove (14). A second retaining block (8) in the shape of a triangle is fixedly connected to the side of the telescopic rod (9) away from the mating groove (5). A telescopic spring (13) is fixedly connected between the second retaining block (8) and the inner wall of the receiving groove (14). A sealing guide groove (15) is provided on the outer wall of the connector (2). A movable first retaining block (6) in the shape of a triangle is provided on one side of the sealing guide groove (15).

2. The anti-interference shielded printer cable harness as described in claim 1, characterized in that: The sealing guide groove (15) is adapted to the first fixing block (6) of the wire harness body (1). The outer wall of the sealing guide groove (15) is provided with a first docking hole (10) with an inverted "convex" cross-section. An abutment rod (61) is fixedly connected to the inner wall of the first fixing block (6). A first guide rod (62) is fixedly connected to one side of the abutment rod (61). The abutment rod (61) and the first guide rod (62) are adapted to the first docking hole (10).

3. The anti-interference shielded printer cable harness as described in claim 2, characterized in that: An abutment spring (63) is fixedly connected between the outer wall of the abutment rod (61) and the inner wall of the first mating hole (10).

4. The anti-interference shielded printer cable harness as described in claim 1, characterized in that: A second docking hole (11) is provided on the outer wall of the sealing guide groove (15). A limiting ring (12) with a through groove in the middle is fixedly installed at the inner edge of the second docking hole (11). A second guide rod (65) is fixedly installed on the side wall of the first fixing block (6). One end of the second guide rod (65) is fixedly connected to a limiting block (64). The limiting block (64) is adapted to the second docking hole (11), and the second guide rod (65) is adapted to the limiting ring (12).

5. The anti-interference shielded printer cable harness as described in claim 1, characterized in that: The specific number of the first retaining block (6) is four. The first retaining block (6) is provided on both sides of the outer wall of one of the connectors (2), and the two first retaining blocks (6) on the same side are symmetrically arranged.

6. The anti-interference shielded printer cable harness as described in claim 1, characterized in that: A pressing block (7) is fixedly installed at the edge of the first retaining block (6), and a semi-circular groove is provided on the side wall of the pressing block (7).

7. The anti-interference shielded printer cable harness as described in claim 1, characterized in that: The retaining frame (3) has a double-sided adhesive strip (4) attached to the side away from the wire harness body (1). The double-sided adhesive strip (4) is a square frame with a square groove inside.

Images