A carriage assembly and inkjet printer

Abstract

The present invention provides a carriage assembly and an inkjet printer. The carriage assembly includes a nozzle assembly, a carriage frame, and an ink supply assembly. The carriage frame is formed with a mounting well, the mounting well is used to accommodate the nozzle assembly, the ink supply assembly is used to fix the nozzle assembly on the carriage frame, the ink supply assembly is detachably connected to the nozzle assembly through an elastic structure, and the ink supply assembly is used to supply ink to the nozzle assembly. The ink supply assembly is connected to the nozzle assembly by using an elastic structure, when the nozzle assembly is taken out, the nozzle assembly follows the ink supply assembly and leaves the mounting well together, and the ink supply assembly provides negative pressure for the nozzle assembly, so that ink leakage is not easy to occur when the nozzle assembly is taken out.

Description

Technical Field

[0001] The invention relates to the research field of inkjet printers, in particular to a carriage assembly and an inkjet printer. Background Art

[0002] In an inkjet printer, the printer head is connected to an ink supply system, which provides ink to the printer head when in use. Ink is also stored inside the printer head, and the ink is kept inside the printer head by the negative pressure provided by the ink supply system, thereby preventing ink dripping or leaking from the nozzle of the printer head.

[0003] The printer nozzle may become clogged or otherwise malfunction during use, and sometimes the printer nozzle needs to be replaced. In the prior art, when replacing the printer nozzle, the ink inside the printer nozzle is prone to drip out of the nozzle during operation, contaminating the internal structure of the inkjet printer. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a carriage assembly and an inkjet printer, wherein the carriage assembly is not prone to ink leakage when the nozzle assembly is removed.

[0005] The carriage assembly provided by the present invention includes a nozzle assembly, a carriage frame, and an ink supply assembly. The carriage frame is formed with a mounting well, the mounting well is used to accommodate the nozzle assembly, the ink supply assembly is used to fix the nozzle assembly on the carriage frame, the ink supply assembly is detachably connected to the nozzle assembly through an elastic structure, and the ink supply assembly is used to supply ink to the nozzle assembly.

[0006] The carriage assembly provided by the present invention has at least the following technical effects: the ink supply assembly is connected to the nozzle assembly by adopting an elastic structure. When the nozzle assembly is taken out, the nozzle assembly leaves the installation well together with the ink supply assembly. The ink supply assembly provides negative pressure for the nozzle assembly, so that ink leakage is not likely to occur when the nozzle assembly is taken out.

[0007] According to some embodiments of the present invention, the elastic structure includes a clamping sleeve and a clamping column configured with the clamping sleeve, the clamping sleeve is provided with a clamping hole, and the clamping sleeve and / or the clamping column are elastic.

[0008] According to some embodiments of the present invention, the elastic structure includes a buckle and a slot matched with the buckle, and the buckle is elastic.

[0009] According to some embodiments of the present invention, the ink supply assembly is provided with a pin, the nozzle assembly is provided with a socket, a sealing ring for clamping the pin is provided in the socket, and the sealing ring is elastic.

[0010] According to some embodiments of the present invention, the carriage frame is provided with a slide rail, the ink supply assembly is provided with a slide column configured with the slide rail, and the ink supply assembly can move along the slide rail.

[0011] According to some embodiments of the present invention, the ink supply assembly includes a pin holder and a push cover, the push cover is movably disposed on the pin holder, the pins are disposed on the pin holder, and the slide column is disposed on the pin holder.

[0012] According to some embodiments of the present invention, a first hook is provided on the push cover, and a first slot configured with the first hook is provided on the carriage frame, and the first hook and the first slot are used to limit the movement of the ink supply assembly.

[0013] According to some embodiments of the present invention, the push cover is arranged on the pin holder through configured guide grooves and guide columns.

[0014] According to some embodiments of the present invention, the guide groove includes a first section located between two ends, and the first section is used to make the push cover move away from or close to the pin holder.

[0015] The inkjet printer provided according to the present invention comprises the carriage assembly proposed by the present invention.

[0016] The inkjet printer provided by the present invention has at least the following technical effects: by using the carriage assembly proposed by the present invention, the inkjet printer is less likely to leak ink when the nozzle assembly is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 is an overall diagram of an inkjet printer provided according to the present invention;

[0019] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0020] Figure 3 is an exploded view of an inverted ink supply assembly according to the present invention;

[0021] Figure 4 is a cross-sectional view of a carriage assembly provided according to the present invention;

[0022] Figure 5 yes Figure 4 A partial enlarged view of part B;

[0023] Figure 6 is a side view of a carriage assembly provided according to the present invention;

[0024] Figure 7 is a side view of a carriage assembly provided according to the present invention;

[0025] Figure 8 is a side view of a carriage assembly provided according to the present invention;

[0026] Fig. 9 It is a side view of a carriage assembly provided according to the present invention.

[0027] Reference numerals:

[0028] Flexible circuit board 30 , sealing ring 37 , nozzle assembly 60 , carriage frame 61 , mounting well 611 , contact pin 63 , pin holder 64 , slide column 641 , pin 65 , push cover 66 , ink tube 67 , guide groove 70 , guide column 701 , first hook 71 , first slot 72 . DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] The carriage assembly provided by the present invention includes a nozzle assembly 60, a carriage frame 61, and an ink supply assembly. The carriage frame 61 is formed with a mounting well 611, and the mounting well 611 is used to accommodate the nozzle assembly 60. The ink supply assembly is used to fix the nozzle assembly 60 on the carriage frame 61. The ink supply assembly is detachably connected to the nozzle assembly 60 through an elastic structure, and the ink supply assembly is used to supply ink to the nozzle assembly 60.

[0034] In the prior art, the nozzle assembly 60 is generally placed in the installation well 611, and the ink supply assembly presses the nozzle assembly 60 in the installation well 611. In some models of inkjet printers, the ink supply assembly is directly installed with an ink cartridge. In some models of inkjet printers, the ink supply assembly is connected to an ink cartridge or ink tank disposed at other positions of the inkjet printer through an ink tube 67. The ink cartridge or ink tank stores ink. The ink supply assembly is connected to the nozzle of the nozzle assembly 60, and the negative pressure provided by the ink cartridge or ink tank keeps the ink inside the nozzle assembly 60. When replacing the nozzle assembly 60, the ink supply assembly is generally separated from the nozzle assembly 60 first, thereby releasing the pressing of the nozzle assembly 60, and then the nozzle assembly 60 is taken out from the installation well 611. Since ink will remain inside the nozzle assembly 60 after use, the interior of the nozzle assembly 60 cannot maintain a normal negative pressure state after the ink supply assembly is separated from the nozzle assembly 60. The ink remaining in the nozzle assembly 60 may drip from the nozzle during the removal process and contaminate the internal structure of the inkjet printer.

[0035] According to the carriage assembly provided by the present invention, by providing an elastic structure, when the nozzle assembly 60 is taken out, the nozzle assembly 60 remains connected to the ink supply assembly through the elastic structure, and the nozzle assembly 60 follows the ink supply assembly to leave the installation well 611, and the ink supply assembly provides negative pressure for the nozzle assembly 60, so that ink leakage is not likely to occur when the nozzle assembly 60 is taken out. After the nozzle assembly 60 is taken out, the nozzle assembly 60 is separated from the ink supply assembly manually or electrically.

[0036] The elastic structure can realize the detachable connection between the nozzle assembly 60 and the ink supply assembly by clamping. According to some embodiments of the present invention, the elastic structure includes a clamping sleeve and a clamping column configured with the clamping sleeve, the clamping sleeve is provided with a clamping hole, and the clamping sleeve and / or the clamping column are elastic. In the free state, the diameter of the clamping hole is smaller than the outer diameter of the clamping column. When connected, the clamping column is inserted into the clamping hole, the side of the clamping column contacts the side of the clamping hole, the elastic clamping sleeve and / or the clamping column are deformed, and a pressing force is generated on the contact surface, and the pressing force generates a friction force, so that the clamping column and the clamping hole remain in a connected state, so that the nozzle assembly 60 is connected to the ink supply assembly. The elastic structure can include one or more clamping sleeves, one clamping sleeve can be provided with one or more clamping holes, the clamping column is matched with the clamping hole, the clamping sleeve can be provided on the nozzle assembly 60, and can also be provided on the ink supply assembly, and the clamping column can be provided on the nozzle assembly 60, and can also be provided on the ink supply assembly.

[0037] For example, according to some specific embodiments of the present invention, the ink supply assembly is provided with a pin 65, the nozzle assembly 60 is provided with a socket, and a sealing ring 37 for clamping the pin 65 is provided in the socket, and the sealing ring 37 is elastic. Figure 3 , Figure 4 , Figure 5 As shown, the ink supply assembly is provided with four pins 65, and the nozzle assembly 60 is provided with four sockets. The pins 65 are inserted into the sockets to deliver ink to the nozzle assembly 60. The sealing ring 37 is formed with a circle of raised clamping rings, which clamp the pins 65, thereby realizing the connection between the nozzle assembly 60 and the ink supply assembly. When the nozzle assembly 60 is taken out, the friction resistance between the sealing ring 37 and the pins 65 and the gravity of the nozzle assembly 60 are balanced with each other, thereby ensuring that the nozzle assembly 60 will not fall off. After the nozzle assembly 60 leaves the installation well 611, the nozzle assembly 60 can be pulled out of the sealing ring 37 to separate the nozzle assembly 60 from the ink supply assembly. In addition, the sealing ring 37 can also play a sealing role to prevent ink or gas from leaking from the connection, thereby reducing the possibility of ink leakage or abnormal pressure. One end of the insertion pin 65 connected to the ink tube 67 is configured in a pagoda shape, which can also play a similar sealing role to prevent leakage at the connection between the insertion pin 65 and the ink tube 67 .

[0038] The elastic structure can realize a detachable connection between the nozzle assembly 60 and the ink supply assembly by fastening. According to some embodiments of the present invention, the elastic structure includes a buckle and a slot matched with the buckle, and the buckle is elastic. There is at least one pair of buckles and slots, one of which is arranged on the nozzle assembly 60, and the other is arranged on the ink supply assembly. The buckle fastens the slot, so that the nozzle assembly 60 is connected to the ink supply assembly. When separated, the buckle is elastically deformed and leaves the slot, so that the nozzle assembly 60 can be removed.

[0039] According to some embodiments of the present invention, the carriage 61 is provided with a slide rail, and the ink supply assembly is provided with a slide column 641 configured with the slide rail, and the ink supply assembly can move along the slide rail. According to the overall structure of the inkjet printer, the slide rail can be arranged in different ways, for example, Figure 1 , Figure 2 , Figure 3 As shown, the nozzle assembly 60 is installed by inserting it into the installation well 611 from above, two slide rails are vertically arranged on the carriage frame 61, and the slide posts 641 are correspondingly arranged on the left and right sides of the ink supply assembly. The slide posts 641 are inserted into the slide rails, and the ink supply assembly can move up and down along the slide rails. The ink supply assembly can also rotate with the axis formed by the two slide posts 641 as the rotation axis. By setting the slide rails and the slide posts 641, the movement range of the ink supply assembly can be limited. On the one hand, this can prevent the ink supply assembly from moving beyond the design range and prevent the ink tube 67, data connection line and other lines connected to the ink supply assembly from being torn. On the other hand, it can also reduce the risk of users losing the ink supply assembly due to misoperation.

[0040] According to some embodiments of the present invention, the ink supply assembly includes a pin holder 64 and a push cover 66, the push cover 66 is movably disposed on the pin holder 64, the pin 65 is disposed on the pin holder 64, and the slide post 641 is disposed on the pin holder 64. Figure 3 As shown, the push cover 66 is located above the pin rack 64, and the push cover 66 has the freedom to move forward and backward. A square first protrusion is extended on both sides of the pin 65, and a ring-shaped second protrusion is also formed above the first protrusion. The pin rack 64 is provided with a pin hole for installing the pin 65. The pin 65 is inserted into the pin hole, and then the pin 65 is rotated so that the first protrusion and the second protrusion clamp the pin rack 64, thereby installing the pin 65 on the pin rack 64.

[0041] In some specific embodiments, the push cover 66 is provided with a first hook 71, and the carriage frame 61 is provided with a first slot 72 configured to be arranged with the first hook 71. The first hook 71 and the first slot 72 are used to limit the movement of the ink supply assembly. Figure 2 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the left and right sides of the carriage frame 61 are formed with protrusions, and the protrusions and the bottom of the carriage frame 61 surround and form two left and right first slots 72. The two sides of the push cover 66 extend backward to form two first hooks 71. When the carriage assembly is in normal use, the first hooks 71 are inserted into the first slots 72, thereby limiting the freedom of the ink supply assembly to move along the slide rail and preventing the ink supply assembly from accidentally disengaging. When the nozzle assembly 60 needs to be removed, the push cover 66 moves forward, and the first hooks 71 are disengaged from the first slots 72, thereby releasing the constraint on the movement of the ink supply assembly.

[0042] According to some embodiments of the present invention, the push cover 66 is arranged on the pin holder 64 by configuring the guide groove 70 and the guide column 701. The push cover 66 can move relative to the pin holder 64 along the path of the guide groove 70. In some embodiments, the guide groove 70 includes a first section located between the two ends, and the first section is used to make the push cover 66 move away from or close to the pin holder 64. For example, Figure 2 , Figure 3 As shown, two guide posts 701 are arranged on the left side of the pin holder 64, two guide posts 701 are arranged on the right side of the pin holder 64, four guide slots 70 are arranged on the left and right sides of the push cover 66, and the guide posts 701 are inserted into the guide slots 70. The first section of the path is inclined upward from front to back. Figure 6 , Figure 7 As shown, when the carriage assembly is in normal use, the guide post 701 is located at the front end of the guide groove 70. When the push cover 66 moves forward, the guide post 701 moves from the front end of the guide groove 70 to the rear end of the guide groove 70. The guide post 701 moves upward along the first section, so that the push cover 66 and the pin holder 64 are close to each other. When the push cover moves backward, the guide post 701 moves downward along the first section, so that the push cover 66 and the pin holder 64 are away from each other. Since the horizontal height of the push cover 66 remains unchanged when moving forward and backward, the pin holder 64 moves up and down following the movement of the push cover 66, and the pin 65 rises and falls following the pin holder 64. When the pin 65 falls, the pin 65 is inserted into the insertion hole to realize the connection between the ink supply assembly and the nozzle assembly 60. When the pin 65 rises, the nozzle assembly 60 rises following the pin 65, so that the nozzle assembly 60 is released from contact with the installation well 611. Of course, the guide post 701 can also be set on the push cover 66, and the guide groove 70 can be set on the pin holder 64, with the first section tilted upward from front to back. When the push cover 66 moves forward, the guide post 701 moves forward with it, thereby pushing the pin holder 64 to move upward. When the push cover 66 moves backward, the guide post 701 moves backward with it, thereby pushing the pin holder 64 to move downward.

[0043] The inkjet printer provided by the present invention comprises the carriage assembly provided by the present invention.

[0044] According to the inkjet printer provided by the present invention, by using the carriage assembly provided by the present invention, the nozzle assembly 60 can be taken out from the installation well 611 along with the ink supply assembly. When the nozzle assembly 60 is taken out, the ink supply assembly provides negative pressure to the nozzle assembly 60, and the inkjet printer is not prone to ink leakage when the nozzle assembly is taken out.

[0045] Reference below Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 The carriage assembly provided by the present invention is described in detail with a specific embodiment. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the present invention.

[0046] Implementation example Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the embodiment includes a nozzle assembly 60, a carriage 61, and an ink supply assembly.

[0047] Four sockets are arranged above the nozzle assembly 60, and a ring-shaped sealing ring 37 is arranged in the socket, and a raised snap ring is formed on the sealing ring 37. A flexible circuit board 30 is also installed on the nozzle assembly 60. The flexible circuit board 30 is a highly reliable and excellently flexible printed circuit board made of polyimide or polyester film as a substrate, and has the characteristics of high wiring density, light weight, thin thickness, and good bendability. The flexible circuit 30 is used to connect an external control circuit.

[0048] The carriage frame 61 is formed with a mounting well 611, which is used to accommodate the nozzle assembly 60, and the nozzle assembly 60 is inserted into the mounting well 611. The carriage frame 61 is provided with a plurality of contact pins 63, which are conductive, and the heads of the contact pins 63 are elastic and can be retracted. The contact pins 63 are arranged at the front of the carriage frame 61, and the contact pins 63 are used to contact the flexible circuit board 30. The left and right sides of the carriage frame 61 are provided with vertical upward slide rails, and the left and right sides of the carriage frame 61 are formed with protrusions, which surround the bottom of the carriage frame 61 to form two left and right first slots 72.

[0049] The ink supply assembly is used to fix the nozzle assembly 60 on the carriage frame 61. The ink supply assembly includes a pin holder 64, a pin 65 and a push cover 66. The pin holder 64 is provided with four pin holes for installing the pins 65. The upper part of the pin 65 is in the shape of a pagoda, and the upper part of the pin 65 is connected to the ink tube 67. The middle part of the pin 65 is extended to form a square first protrusion, and a second annular protrusion is formed above the first protrusion. The pin 65 is inserted into the pin hole, and then the pin 65 is rotated so that the first protrusion and the second protrusion clamp the pin holder 64, so that the pin 65 is installed on the pin holder 64. The lower part of the pin 65 is in a cone shape, and the lower part of the pin 65 can be inserted into the jack. The ink tube 67 can supply ink to the nozzle assembly 60 through the pin 65. Four guide pillars 701 are provided on the left and right sides of the pin holder 64. The push cover 66 is provided with four guide grooves 70 configured with the guide pillars 701. The guide grooves 70 include a first section located between the two ends. The path of the first section is inclined upward from front to back. The guide pillars 701 are inserted into the guide grooves 70, and the guide pillars 701 can move along the guide grooves 70. The two sides of the push cover 66 also extend backward to form two first hooks 71. The left and right sides of the pin holder 64 are respectively provided with a slide post 641. The slide post 641 is inserted into the slide rail, so that the ink supply assembly can move up and down along the slide rail, and the ink supply assembly can rotate with the axis formed by the two slide posts 641 as the rotation axis.

[0050] When the nozzle assembly 60 is installed, the nozzle assembly 60 is placed in the installation well 611, and the contact pin 63 contacts the flexible circuit board 30. The push cover 66 moves backward, so that the pin holder 64 moves downward to press the nozzle assembly 60, the first hook 71 is inserted into the first slot 72 to limit the movement of the ink supply assembly, the pin 65 is inserted into the insertion hole of the nozzle assembly 60, the clamping ring part of the sealing ring 37 contacts the pin 65, and the sealing ring 37 is elastically deformed to hold the pin 65, so that the nozzle assembly 60 is connected with the ink supply assembly.

[0051] When taking out the nozzle assembly 60, Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the push cover 66 moves forward, the pin holder 64 rises under the action of the first section, pulling the nozzle assembly 60 up, the nozzle assembly 60 is out of contact with the installation well 611, the first hook 71 is out of the first slot 72, and the limit of the ink supply assembly is released. The ink supply assembly moves upward along the slide rail, thereby pulling the nozzle assembly 60 out of the installation well 611, and then the nozzle assembly 60 is separated from the ink supply assembly, and the ink supply assembly rotates on the upper part of the slide rail, so that the nozzle assembly 60 is in a posture that is more convenient to disassemble.

[0052] According to the embodiment of the present invention, the carriage assembly can at least achieve the following functions by adopting the above design:

[0053] By using an elastic structure, the sealing ring 37 holds the pin 65 tightly, so that the nozzle assembly 60 is connected to the ink supply assembly when the nozzle assembly 60 is taken out, and the ink supply assembly provides negative pressure for the nozzle assembly 60, thereby reducing the possibility of ink dripping or ink leakage when the nozzle assembly 60 is taken out.

[0054] By setting the slide rail and the slide column 641, the movement range of the ink supply assembly can be limited. On the one hand, this can prevent the ink supply assembly from moving beyond the design range and prevent the ink tube 67, data connection line and other connections connected to the ink supply assembly from being torn. On the other hand, it can also reduce the risk of users losing the ink supply assembly due to misoperation.

[0055] The pin holder 64, the push cover 66, the guide groove 70, the guide column 701, the first hook 71, and the first groove 72 work together to enable the ink supply assembly to press the nozzle assembly 60 when the carriage assembly works normally, ensuring the positioning of the nozzle assembly 60 and the good contact between the contact pin 63 and the flexible circuit board 30. The push cover 66 can be moved forward to release the fixation of the ink supply assembly and the nozzle assembly 60, without the need to set additional fastening structures such as bolts and pins, and the operation is simple.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0057] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A carriage assembly, characterized in that: include: A nozzle assembly (60); A carriage frame (61), wherein the carriage frame (61) is formed with a mounting well (611), and the mounting well (611) is used to accommodate the nozzle assembly (60); an ink supply assembly, the ink supply assembly being used to fix the nozzle assembly (60) on the carriage frame (61), the ink supply assembly being detachably connected to the nozzle assembly (60) via an elastic structure, and the ink supply assembly being used to supply ink to the nozzle assembly (60); When the nozzle assembly (60) is taken out, the nozzle assembly (60) remains connected to the ink supply assembly via the elastic structure, and the nozzle assembly (60) follows the ink supply assembly to leave the installation well (611); The ink supply assembly is provided with an insertion pin (65), the nozzle assembly (60) is provided with an insertion hole, a sealing ring (37) for clamping the insertion pin (65) is provided in the insertion hole, and the sealing ring (37) is elastic; The carriage frame (61) is provided with a slide rail, the ink supply assembly is provided with a slide column (641) configured with the slide rail, the slide rail is arranged in a vertical manner, and the ink supply assembly can move up and down along the slide rail; The ink supply assembly comprises a pin holder (64) and a push cover (66), wherein the push cover (66) is movably arranged on the pin holder (64), the pins (65) are arranged on the pin holder (64), the slide column (641) is arranged on the pin holder (64), and the push cover (66) has the freedom to move forward and backward; The push cover (66) is arranged on the pin holder (64) through a guide groove (70) and a guide column (701); the guide groove (70) includes a first section located between two ends, and the first section is used to make the push cover (66) move away from or close to the pin holder (64); When the insertion pin (65) descends, the insertion pin (65) is inserted into the insertion hole to realize the connection between the ink supply assembly and the nozzle assembly (60); when the insertion pin (65) rises, the nozzle assembly (60) rises along with the insertion pin (65), so that the nozzle assembly (60) is released from contact with the mounting well (611).

2. The carriage assembly according to claim 1, characterized in that: The elastic structure comprises a clamping sleeve and a clamping column configured with the clamping sleeve, the clamping sleeve is provided with a clamping hole, and the clamping sleeve and / or the clamping column are elastic.

3. The carriage assembly according to claim 1, characterized in that: The elastic structure comprises a buckle and a buckle slot matched with the buckle, and the buckle is elastic.

4. The carriage assembly according to claim 1, characterized in that: The push cover (66) is provided with a first hook (71), and the carriage frame (61) is provided with a first slot (72) configured with the first hook (71), and the first hook (71) and the first slot (72) are used to limit the movement of the ink supply assembly.

5. An inkjet printer, characterized in that: The inkjet printer comprises the carriage assembly according to any one of claims 1 to 4.

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