Code spraying device for shell of temperature controller
The modular spray coding system with a detachable spray head design addresses installation and removal challenges, enabling efficient and safe maintenance with reduced downtime and costs.
Patent Information
- Application Number
- CN202422137352.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-30
AI Technical Summary
The installation and disassembly of the nozzles in the inkjet coding device for the existing thermostat housing is inconvenient, which leads to difficulties in repair and replacement, which increases the maintenance time and cost. At the same time, the nozzles are easily damaged in high temperature, high humidity or dust environments, reducing the availability of the equipment.
A injection coding device is designed, adopting a combined structure of a printer, a lateral sliding system, a longitudinal sliding system and a nozzle, combined with a clamping mechanism and an unlocking mechanism to realize the rapid installation and disassembly of the nozzle. Through the coordination of the clamping pipe, clamping sleeve, clamping block, pressing rod, mounting groove, hinging rod, sliding rod, connecting block, pressing spring and pulling spring, the stability and convenience of the nozzle are ensured.
It realizes flexible adjustment and precise injection coding of the nozzle, reduces maintenance time and cost, improves the operation convenience and safety of the equipment, and extends the service life of the equipment.
Smart Images

Figure CN223100289U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermostat housings, and more specifically, it relates to a coding device for thermostat housings. Background Art
[0002] In the existing technology, in the existing coding device for thermostat housings, the traditional integrated design of the coder and the nozzle brings some inconveniences. This design tightly combines the main body of the coder with the nozzle, making the nozzle an inseparable part of the coder. Although this integrated structure simplifies the manufacturing process to a certain extent, when the nozzle fails or needs to be replaced, it brings trouble to maintenance. Since the nozzle is a key component in the coding process, frequent maintenance and replacement are inevitable. The integrated design means that when maintaining or replacing the nozzle, the entire coder may need to be sent back to the manufacturer or a professional maintenance point, which not only prolongs the maintenance time but also may increase the maintenance cost.
[0003] The existing coding device also has inconveniences in the installation and disassembly of the nozzle. Since the nozzle usually needs to be accurately aligned and fixed to ensure the quality and accuracy of coding, the installation and disassembly process may require professional technical knowledge and special tools. In addition, since the nozzle may be exposed to high-temperature, high-humidity, or dusty environments, frequent disassembly and installation may cause damage to the nozzle or a decline in coding quality. Such inconveniences not only reduce the usability of the equipment but also may increase the maintenance cost and downtime. Summary of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the problems existing in the prior art, the utility model provides a coding device for thermostat housings to solve the technical problem of the inconvenience in the installation and disassembly of the nozzle mentioned in the background art.
[0006] (2) Technical Solutions
[0007] To achieve the above object, the present utility model provides the following technical solution: An inkjet coding device for a thermostat housing, including a mounting plate, on which an inkjet coding mechanism is provided. The inkjet coding mechanism includes an inkjet printer, a horizontal sliding system, a vertical sliding system, and a nozzle. The inkjet printer is arranged on the mounting plate, the horizontal sliding system is arranged on the bottom surface of the mounting plate, the vertical sliding system is connected and installed on the bottom surface of the horizontal sliding system, and the nozzle is installed on the inkjet printer through a clamping mechanism. The clamping mechanism includes a clamping pipe, a clamping sleeve, a clamping block, a pressing rod, a mounting groove, a hinged rod, a sliding rod, a connecting block, a compression spring, and a tension spring. The clamping pipe is arranged on the inkjet printer, the clamping sleeve is arranged on the nozzle, the clamping block is arranged in the clamping sleeve, the pressing rod is arranged on the clamping block, multiple groups of mounting grooves are distributed on the outer wall of the clamping sleeve, one end of the hinged rod is rotatably installed in the mounting groove, one end of the sliding rod is slidably installed in the mounting groove, the connecting block connects the hinged rod and the sliding rod at both ends respectively, the compression spring is arranged at the top end of the pressing rod and connected to the connecting block, and the tension spring is arranged in the mounting groove and connected to the sliding rod.
[0008] The present utility model is further arranged such that a receiving groove is provided in the clamping sleeve, and multiple groups of the receiving grooves are provided. Multiple groups of the clamping blocks are slidably installed in multiple groups of the receiving grooves, enabling the clamping blocks to slide flexibly in the clamping sleeve.
[0009] The present utility model is further arranged such that clamping grooves are provided on the outer wall of the clamping pipe, multiple groups of the clamping grooves are provided and are adapted to multiple groups of the clamping blocks. Push springs are provided in multiple groups of the receiving grooves, and both ends of multiple groups of the push springs are respectively connected to the clamping blocks and the clamping sleeve, ensuring the accuracy and stability of clamping, and improving the operation convenience and safety of the device.
[0010] The present utility model is further arranged such that sliding grooves are provided on both sides of the mounting groove, and the bottom ends of multiple groups of the sliding rods are slidably installed in the sliding grooves, reducing wear and extending the service life of the device.
[0011] The present utility model is further arranged such that a sealing ring is provided at the top end of the clamping pipe, improving the sealing performance and working efficiency of the device.
[0012] The present utility model is further arranged such that limiting strips are provided on the inner side of the clamping sleeve, multiple groups of the limiting strips are provided, limiting grooves are provided on the outer wall of the clamping pipe, multiple groups of the limiting grooves are provided and are adapted to multiple groups of the limiting strips, improving the operation convenience and safety of the device.
[0013] The present utility model is further configured such that an unlocking mechanism is provided on the outer wall of the clamping sleeve. The unlocking mechanism includes an unlocking sleeve, a limiting block, a control sleeve, a limiting rod, and an arc-shaped rod. The unlocking sleeve is provided on the outer wall of the clamping sleeve. Multiple groups of the limiting blocks are installed on the outer wall of the unlocking sleeve. The control sleeve is rotatably installed at the bottom end of the clamping sleeve. Multiple groups of the limiting rods are installed on the outer wall of the control sleeve. Multiple groups of the arc-shaped rods are respectively installed on multiple groups of the limiting rods. This design improves the operation convenience and safety of the device.
[0014] The present utility model is further configured such that the spacing between multiple groups of the arc-shaped rods is adapted to the limiting block, ensuring the smoothness and accuracy of the unlocking process.
[0015] (III) Beneficial effects
[0016] Compared with the prior art, the present utility model provides a coding device for a thermostat housing, having the following beneficial effects:
[0017] 1. Through the cooperative design of the coding machine, the horizontal sliding system, the vertical sliding system, and the nozzle, the coding mechanism realizes the precise adjustment of the coding position and the automation of the coding process. This design enables the nozzle to be flexibly adjusted according to different positions of the workpiece and coding requirements, improving the accuracy and efficiency of coding. At the same time, the introduction of the sliding system enables the coding device to adapt to workpieces of different sizes and shapes, enhancing the applicable range of the coding device.
[0018] 2. Through the design of the clamping tube, the clamping sleeve, the clamping block, the pressing rod, the installation groove, the hinge rod, the sliding rod, the connecting block, the compression spring, and the tension spring, the clamping mechanism realizes the quick clamping installation and disassembly of the nozzle. This design allows the operator to quickly replace the nozzle without using special tools, greatly reducing the maintenance time and cost. The cooperation of the clamping block and the storage groove, as well as the functions of the compression spring and the tension spring, ensure the stability of the nozzle installation and the convenience of disassembly.
[0019] 3. Through the design of the unlocking sleeve, the limiting block, the control sleeve, the limiting rod, and the arc-shaped rod, the unlocking mechanism provides a simple nozzle disassembly mechanism. When the nozzle needs to be replaced or repaired, by rotating the control sleeve, the rotational movement of the arc-shaped rod can release the limiting block, thereby allowing the unlocking block to slide, enabling the sliding rod on the side wall of the nozzle to move, and further triggering the release mechanism of the clamping block. This design makes the nozzle disassembly process more intuitive and safe, reduces the operation difficulty, and improves the maintenance efficiency of the device. Description of the drawings
[0020] Figure 1 It is a schematic diagram of the overall structure of a coding device for a thermostat housing in the present utility model;
[0021] Figure 2Schematic structural diagram of the inkjet mechanism in the present utility model;
[0022] Figure 3 Schematic exploded structural diagram of the connection structure between the clamping mechanism and the nozzle in the present utility model;
[0023] Figure 4 Schematic structural diagram of the clamping mechanism in the present utility model;
[0024] Figure 5 Schematic structural diagram of the unlocking mechanism in the present utility model.
[0025] In the figure: 1, mounting plate; 2, inkjet printer; 3, horizontal sliding system; 4, vertical sliding system; 5, nozzle; 6, clamping pipe; 7, clamping sleeve; 8, clamping block; 9, pressing rod; 10, mounting groove; 11, hinge rod; 12, sliding rod; 13, connecting block; 14, compression spring; 15, tension spring; 16, storage groove; 17, clamping groove; 18, pushing spring; 19, sliding groove; 20, sealing ring; 21, limiting strip; 22, limiting groove; 23, unlocking sleeve; 24, limiting block; 25, control sleeve; 26, limiting rod; 27, arc rod. Detailed implementation manners
[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.
[0027] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meanings as those commonly understood by those of ordinary skill in the technical field to which the present application belongs.
[0028] In the present utility model, unless otherwise stated, the directions such as "upper, lower" are generally in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are generally the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above direction terms do not limit the present utility model.
[0029] Please refer to Figures 1-5, An inkjet coding device for a thermostat housing, including a mounting plate 1, on which an inkjet coding mechanism 2 is provided. The inkjet coding mechanism 2 includes an inkjet printer 2, a horizontal sliding system 3, a vertical sliding system 4, and a nozzle 5. The inkjet printer 2 is arranged on the mounting plate 1, the horizontal sliding system 3 is arranged on the bottom surface of the mounting plate 1, the vertical sliding system 4 is connected and installed on the bottom surface of the horizontal sliding system 3, and the nozzle 5 is installed on the inkjet printer 2 through a clamping mechanism. The clamping mechanism includes a clamping pipe 6, a clamping sleeve 7, a clamping block 8, a pressure rod 9, a mounting groove 10, a hinge rod 11, a sliding rod 12, a connecting block 13, a compression spring 14, and a tension spring 15. The clamping pipe 6 is arranged on the inkjet printer 2, the clamping sleeve 7 is arranged on the nozzle 5, the clamping block 8 is arranged in the clamping sleeve 7, the pressure rod 9 is arranged on the clamping block 8, multiple groups of mounting grooves 10 are distributed on the outer wall of the clamping sleeve 7, one end of the hinge rod 11 is rotatably installed in the mounting groove 10, one end of the sliding rod 12 is slidably installed in the mounting groove 10, the connecting block 13 is connected to the hinge rod 11 and the sliding rod 12 at both ends respectively, the compression spring 14 is arranged at the top end of the pressure rod 9 and connected to the connecting block 13, and the tension spring 15 is arranged in the mounting groove 10 and connected to the sliding rod 12.
[0030] A receiving groove 16 is formed in the clamping sleeve 7, and multiple groups of receiving grooves 16 are provided. Multiple groups of clamping blocks 8 are all slidably installed in multiple groups of receiving grooves 16. This design enables the clamping blocks 8 to slide flexibly in the clamping sleeve 7.
[0031] Multiple clamping grooves 17 are formed on the outer wall of the clamping pipe 6, and multiple groups of clamping grooves 17 are provided and are adapted to multiple groups of clamping blocks 8. Multiple groups of push springs 18 are arranged in multiple groups of receiving grooves 16, and both ends of multiple groups of push springs 18 are respectively connected to the clamping blocks 8 and the clamping sleeve 7. The adaptation design of the clamping blocks 8 and the clamping grooves 17 ensures the accuracy and stability of clamping, improves the operation convenience and safety of the device, and maintains a stable connection through the restoring force of the push springs 18.
[0032] Sliding grooves 19 are formed on both sides of the mounting groove 10, and the bottom ends of multiple groups of sliding rods 12 are all slidably installed in the sliding grooves 19. The sliding connection design of the sliding rods 12 enables them to move flexibly in the mounting groove 10 to adapt to different working requirements. This design reduces the direct contact between the sliding rods 12 and the mounting groove 10, reduces wear, and extends the service life of the device.
[0033] A sealing ring 20 is provided at the top end of the clamping pipe 6. The setting of the sealing ring 20 effectively prevents external substances from entering the inside of the clamping pipe 6, protects the cleanliness and integrity of the internal structure. At the same time, the sealing ring 20 also prevents the leakage of internal substances, improves the sealing performance and working efficiency of the device.
[0034] The inner side of the clamping sleeve 7 is provided with a plurality of limiting bars 21. The limiting bars 21 are provided in multiple groups. The outer wall of the clamping pipe 6 is provided with limiting grooves 22. The limiting grooves 22 are provided in multiple groups and are adapted to the multiple groups of limiting bars 21. The settings of the limiting bars 21 and the limiting grooves 22 limit the movement range of the clamping pipe 6, preventing equipment damage caused by excessive movement. At the same time, this design makes the adjustment process more precise, improving the operation convenience and safety of the equipment.
[0035] In this embodiment, when installing the nozzle 5, align the limiting grooves 22 provided on the clamping pipe 6 with the limiting bars 21 provided on the clamping sleeve 7, and then insert the clamping pipe 6 into the clamping sleeve 7. Pull the multiple groups of sliding rods 12 so that their bottom ends slide along the multiple groups of sliding grooves 19. At this time, the proximal ends of the sliding rods 12 and the hinged rods 11 are simultaneously lifted to drive the connecting blocks 13 to move. The movement of the multiple groups of connecting blocks 13 releases the downward pressure on the compression springs 14 and stretches them outwards. The multiple groups of compression springs 14 drive the multiple groups of pressure rods 9 to slide along the clamping sleeve 7, driving the multiple groups of clamping blocks 8 to move outwards and move into the storage grooves 16 to squeeze the multiple groups of push springs 18. Then insert the clamping pipe 6 into the clamping sleeve 7 and make the sealing ring 20 abut against the inner top end of the clamping sleeve 7. When the multiple groups of clamping grooves 17 move to the inner sides of the multiple groups of clamping blocks 8, pull the bottom ends of the multiple groups of sliding rods 12 to slide along the sliding grooves 19 through the multiple groups of tension springs 15, and at the same time pull the other ends to reset. At this time, the proximal ends of the multiple groups of hinged rods 11 and the sliding rods 12 drive the multiple groups of connecting blocks 13 to apply a downward pressure on the compression springs 14. At the same time, the multiple groups of push springs 18 elastically push the multiple groups of clamping blocks 8 to be inserted into the clamping grooves 17, and the multiple groups of compression springs 14 press against the pressure rods 9, so that the clamping pipe 6 is clamped in the clamping sleeve 7, and the quick installation of the nozzle 5 can be completed. Place the workpiece under the nozzle 5, start the inkjet printer 2 to perform inkjet operation through the nozzle 5, and adjust the positions of the inkjet printer 2 and the nozzle 5 through the horizontal sliding system 3 and the vertical sliding system 4.
[0036] Please refer to Figure 5 As an implementation manner of the unlocking mechanism: An unlocking mechanism is provided on the outer wall of the clamping sleeve 7. The unlocking mechanism includes an unlocking sleeve 23, a limiting block 24, a control sleeve 25, a limiting rod 26, and an arc-shaped rod 27. The unlocking sleeve 23 is provided on the outer wall of the clamping sleeve 7. Multiple groups of limiting blocks 24 are installed on the outer wall of the unlocking sleeve 23. The control sleeve 25 is rotatably installed at the bottom end of the clamping sleeve 7. Multiple groups of limiting rods 26 are installed on the outer wall of the control sleeve 25. Multiple groups of arc-shaped rods 27 are respectively installed on the multiple groups of limiting rods 26. The design of the unlocking mechanism enables the clamping sleeve 7 to drive the limiting rods 26 and the arc-shaped rods 27 through the rotation of the control sleeve 25 when unlocking is required, realizing the unlocking action. This design improves the operation convenience and safety of the equipment. At the same time, the multiple groups of settings of the limiting blocks 24 increase the reliability of unlocking.
[0037] The spacing between multiple groups of arc-shaped rods 27 is adapted to the limit blocks 24. The adapted design of the spacing between the arc-shaped rods 27 and the limit blocks 24 ensures the smoothness and accuracy of the unlocking process.
[0038] More specifically, when it is necessary to disassemble the nozzle 5, rotate the control sleeve 25 to drive multiple groups of limit rods 26 to rotate. Drive multiple groups of arc-shaped rods 27 to rotate through multiple groups of limit rods 26. The rotation of multiple groups of arc-shaped rods 27 releases the abutment against multiple groups of limit blocks 24, enabling the unlocking block to slide along the clamping sleeve 7. Slide upward to dynamically abut against the side wall of the sliding rod 12, causing the bottom ends of multiple groups of sliding rods 12 to slide along the sliding grooves 19, thereby pushing multiple groups of connecting blocks 13 to move, releasing the downward pressure on the compression springs 14 and stretching them outward. Multiple groups of compression springs 14 drive multiple groups of pressure rods 9 to slide along the clamping sleeve 7, driving multiple groups of clamping blocks 8 to move outward into the storage groove 16, thereby releasing the clamping of the clamping rod, and then the nozzle 5 can be disassembled.
[0039] In summary, when the overall device is in use or operation: when installing the nozzle 5, align the limit grooves 22 provided on the clamping pipe 6 with the limit strips 21 provided on the clamping sleeve 7, and then insert the clamping pipe 6 into the clamping sleeve 7. Pull multiple groups of sliding rods 12 so that their bottom ends slide along multiple groups of sliding grooves 19. At this time, the proximal ends of the sliding rods 12 and the hinge rods 11 are simultaneously lifted to drive the connecting blocks 13 to move. Multiple groups of connecting blocks 13 move to release the downward pressure on the compression springs 14 and stretch them outward. Multiple groups of compression springs 14 drive multiple groups of pressure rods 9 to slide along the clamping sleeve 7, driving multiple groups of clamping blocks 8 to move outward and move into the storage groove 16 to squeeze multiple groups of push springs 18. Then insert the clamping pipe 6 into the clamping sleeve 7 and abut the sealing ring 20 against the inner top end of the clamping sleeve 7. When multiple groups of clamping grooves 17 move to the inner sides of multiple groups of clamping blocks 8, pull the bottom ends of multiple groups of sliding rods 12 to slide along the sliding grooves 19 through multiple groups of tension springs 15, and at the same time pull the other end to reset. At this time, the proximal ends of multiple groups of hinge rods 11 and the sliding rods 12 drive multiple groups of connecting blocks 13 to apply a downward pressure on the compression springs 14. At the same time, multiple groups of push springs 18 elastically push multiple groups of clamping blocks 8 to be inserted into the clamping grooves 17, and through multiple groups of compression springs 14, the pressure rods 9 are pressed, so that the clamping pipe 6 is clamped in the clamping sleeve 7, and the rapid installation of the nozzle 5 can be completed. Place the workpiece below the nozzle 5, start the inkjet printer 2 to perform inkjet operation through the nozzle 5, and adjust the positions of the inkjet printer 2 and the nozzle 5 through the horizontal sliding system 3 and the vertical sliding system 4.
[0040] When the nozzle 5 needs to be disassembled, rotate the control sleeve 25 to drive multiple groups of limit rods 26 to rotate. Drive multiple groups of arc-shaped rods 27 to rotate through the multiple groups of limit rods 26. The rotation of the multiple groups of arc-shaped rods 27 releases the abutment against the multiple groups of limit blocks 24, so that the unlocking block can slide along the clamping sleeve 7. Slide upward to abut against the side wall of the sliding rod 12 dynamically, so that the bottom ends of the multiple groups of sliding rods 12 slide along the sliding groove 19, thereby pushing the multiple groups of connecting blocks 13 to move to release the downward pressure on the compression spring 14 and stretch it outward. The multiple groups of compression springs 14 drive the multiple groups of pressure rods 9 to slide along the clamping sleeve 7, driving the multiple groups of clamping blocks 8 to move outward into the storage groove 16, thereby releasing the clamping of the clamping rod, and then the nozzle 5 can be disassembled.
[0041] In all the solutions mentioned above, for the connection between two components, welding, the cooperation of bolts and nuts, bolt or screw connection, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For those mentioned above that involve fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An inkjet printing device for a thermostat housing, comprising a mounting plate (1), characterized in that: A coding machine structure (2) is provided on the mounting plate (1). The coding machine structure (2) includes a coding machine (2), a transverse sliding system (3), a longitudinal sliding system (4), and a nozzle (5). The coding machine (2) is provided on the mounting plate (1). The transverse sliding system (3) is provided on the bottom surface of the mounting plate (1). The longitudinal sliding system (4) is connected and installed on the bottom surface of the transverse sliding system (3). The nozzle (5) is installed on the coding machine (2) through a clamping mechanism. The clamping mechanism includes a clamping pipe (6), a clamping sleeve (7), a clamping block (8), a pressing rod (9), a mounting groove (10), a hinged rod (11), a sliding rod (12), a connecting block (13), a compression spring (14), and a tension spring (15). The clamping pipe (6) is provided on the coding machine (2). The clamping sleeve (7) is provided on the nozzle (5). The clamping block (8) is provided in the clamping sleeve (7). The pressing rod (9) is provided on the clamping block (8). Multiple groups of mounting grooves (10) are distributed on the outer wall of the clamping sleeve (7). One end of the hinged rod (11) is rotatably installed in the mounting groove (10). One end of the sliding rod (12) is slidably installed in the mounting groove (10). The connecting block (13) is connected to the hinged rod (11) and the sliding rod (12) at both ends respectively. The compression spring (14) is provided at the top end of the pressing rod (9) and connected to the connecting block (13). The tension spring (15) is provided in the mounting groove (10) and connected to the sliding rod (12).
2. The inkjet printing device for the thermostat housing according to claim 1, characterized in that: A receiving groove (16) is formed in the clamping sleeve (7). Multiple groups of receiving grooves (16) are provided. Multiple groups of clamping blocks (8) are all slidably installed in multiple groups of the receiving grooves (16).
3. The inkjet printing device for a thermostat housing according to claim 2, characterized in that: Clamping grooves (17) are formed on the outer wall of the clamping pipe (6). Multiple groups of clamping grooves (17) are provided and are adapted to multiple groups of the clamping blocks (8). Push springs (18) are provided in multiple groups of the receiving grooves (16). Both ends of multiple groups of the push springs (18) are respectively connected to the clamping block (8) and the clamping sleeve (7).
4. The inkjet printing device for the thermostat housing according to claim 3, characterized in that: Sliding grooves (19) are formed on both sides of the mounting groove (10). The bottom ends of multiple groups of the sliding rods (12) are all slidably installed in the sliding grooves (19).
5. The inkjet printing device for the thermostat housing according to claim 4, characterized in that: A sealing ring (20) is provided at the top end of the clamping pipe (6).
6. The inkjet printing device for the thermostat housing according to claim 5, characterized in that: Limiting strips (21) are provided on the inner side of the clamping sleeve (7). Multiple groups of limiting strips (21) are provided. Limiting grooves (22) are formed on the outer wall of the clamping pipe (6). Multiple groups of limiting grooves (22) are provided and are adapted to multiple groups of the limiting strips (21).
7. A coding device for a thermostat housing according to claim 6, characterized in that: An unlocking mechanism is provided on the outer wall of the clamping sleeve (7). The unlocking mechanism includes an unlocking sleeve (23), a limit block (24), a control sleeve (25), a limit rod (26), and an arc-shaped rod (27). The unlocking sleeve (23) is provided on the outer wall of the clamping sleeve (7). A plurality of groups of limit blocks (24) are installed on the outer wall of the unlocking sleeve (23). The control sleeve (25) is rotatably installed at the bottom end of the clamping sleeve (7). A plurality of groups of limit rods (26) are installed on the outer wall of the control sleeve (25). A plurality of groups of arc-shaped rods (27) are respectively installed on the plurality of groups of limit rods (26).
8. The inkjet printing device for the thermostat housing according to claim 7, characterized in that: multiple groups The distance between the arc-shaped rods (27) is adapted to the limit block (24).