Multi-language international trade contract printing equipment
By integrating printing equipment components and self-powered systems, the portability and self-powered problems of multilingual international trade contract printing equipment are solved, and rapid printing and vibration reduction without external power supply are achieved, improving the applicability and working efficiency of the equipment.
Patent Information
- Application Number
- CN202510440846.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2025-07-22
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing multilingual international trade contract printing equipment is not compact in structure, covers a large area, is inconvenient for portability and transportation, and cannot be used without external power supply, which affects printing efficiency.
Integrate printing equipment components, adopt elastic transport straps and internal power storage components, combined with shock absorber shells and power supply converters to realize the portability and self-powering functions of the equipment, reduce vibration and wiring harness wrapping, and improve carry comfort and printing efficiency.
It realizes rapid printing of contracts without restricting the use location and without external power supply, reduces equipment vibration and loose connections, and improves the applicability and working efficiency of the equipment.
Smart Images

Figure CN120348074A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of international trade contract printing, and specifically to a multi-language international trade contract printing device. Background Art
[0002] A multi-language international trade contract refers to a contract text written in multiple languages in international trade activities to meet the legal and business practice requirements of different countries or regions. Such contracts usually contain multiple language versions such as English, French, German, Spanish, etc. to ensure wide applicability and legal effect globally. After editing a multi-language international trade contract, a trade contract printing device is required to print it.
[0003] Although existing old-fashioned contract printing devices can complete contract printing work, their overall structure is not compact enough, they occupy a large area and are not convenient for carrying. In addition, existing contract printing devices use fixed power supply during use and cannot be used without external power supply. At the same time, existing contract printing devices are not easy to carry and cannot be quickly transported, which affects the printing efficiency of multi-language international trade contracts and cannot be used immediately.
[0004] Therefore, the present invention provides a multi-language international trade contract printing device to solve the above problems. Summary of the Invention
[0005] The present invention integrates the printing device components to form an integral whole and adopts an elastic transfer strap. At the same time, a power storage component is added inside to complete the power supply work of the device. The good integrity facilitates the user to transfer the use position, and absorbs the vibration generated during movement during the transfer process, which can improve the carrying comfort while reducing the vibration received by the device and avoiding the loosening of connections. Quick transfer can improve the working efficiency of the device, and contract printing work can be carried out without restricting the use location and without connecting external power supply harnesses when printing contracts. It has good applicability and reduces the contract printing time, thereby improving the working efficiency.
[0006] To achieve the above object, the present invention provides the following technical solution: A multi-language international trade contract printing device, including a portable contract printing structure, and printing device mobile power supply structures are detachably connected to both sides of the portable contract printing structure, and storage-type printing device portable components are fixedly connected to the middle parts of both sides of the printing device mobile power supply structures.
[0007] The portable contract printing structure includes a laser printer. A toner cartridge is detachably connected to the front end of the laser printer. A movable scanner is movably connected to the inner surface of the upper end of the laser printer. A printing paper outlet slot is fixedly connected to the middle of the front end of the laser printer. A shock-absorbing housing is fixedly connected to the outer surface around the laser printer. A protective housing is fixedly connected to the outer surface around the shock-absorbing housing. A pull-out printing baffle is movably connected to the lower end of the laser printer. A flip cover is movably connected to the middle of the rear end of the laser printer. A rubber shock-absorbing pad is adhesively connected to the middle of the lower end of the flip cover. A flip shaft is movably connected to the middle of the rear end of the flip cover. A middle slot is opened in the middle of the front end of the flip cover.
[0008] The mobile power supply structure of the printing device includes a two-way power supply. A spring tightener is movably connected to the middle of the upper end of the two-way power supply. A storage cover is snap-connected to the middle of the upper end of the two-way power supply. A power supply coil wire is movably connected to the middle of the spring tightener. A power supply connector is fixedly connected to one end of the power supply coil wire. A left power supply converter is fixedly connected to one side of the two-way power supply. A right power supply converter is fixedly connected to the other side of the two-way power supply. A left battery is connected in alignment with the connector on one side of the left power supply converter. A right battery is connected in alignment with the connector on the other side of the left power supply converter.
[0009] The portable component of the storage type printing device includes a wear-resistant shoulder strap. A buffer shoulder sleeve is movably connected to the middle of the wear-resistant shoulder strap. A left limit sliding block is fixedly connected to one side of the wear-resistant shoulder strap. A right limit sliding block is fixedly connected to the other side of the wear-resistant shoulder strap. Hollow sliding blocks are fixedly connected to the middle of the rear ends of the left limit sliding block and the right limit sliding block. Inner grooved limit sliding rails are movably connected to both ends of the hollow sliding block. A lateral baffle is fixedly connected to one side of the inner grooved limit sliding rail. Spring sliding rods are fixedly connected to the middle of both sides of the inner grooved limit sliding rail. A push block is movably connected to the outer wall of the spring sliding rod.
[0010] The front end of the laser printer is magnetically connected to the inside of the front end of the pull-out printing baffle. One side of the shock-absorbing housing is movably connected to both sides of the pull-out printing baffle.
[0011] The upper end of the laser printer is detachably connected to the lower end of the rubber shock-absorbing pad. The upper end inside the laser printer is movably connected to the upper end of the movable scanner.
[0012] The outer surface around the power supply connector is detachably connected to the middle of the rear end of the left power supply converter. The power supply coil wire is electrically connected to the left battery and the right battery through the left power supply converter and the right power supply converter respectively.
[0013] The left limiting sliding block and the right limiting sliding block are respectively connected to the lateral baffle on one side of the inner-grooved limiting slide rail in a limiting manner, and the pushing block in the middle of the inner-grooved limiting slide rail is in contact connection with one side of the hollow sliding blocks of the left limiting sliding block and the right limiting sliding block respectively.
[0014] The inner surfaces around the protective housing are respectively detachably connected to the outer surfaces around the left storage battery and the right storage battery through shock-absorbing sleeves. A rectangular installation groove is formed in the middle of one side of the protective housing, and the outer surface around the inner-grooved limiting slide rail is detachably connected to the middle of one side of the protective housing through the rectangular installation groove.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0016] 1. By opening the pull-out printing baffle at the bottom of the present invention, after opening, it is connected through a wireless local area network or a data connection line, and the content to be printed is transmitted to the laser printer. After the laser printer receives the data, the laser beam transfers the image information to the photosensitive drum, then electrostatically adsorbs the toner inside the toner cartridge, and finally fixes the toner on the paper. The paper is discharged through the printing paper outlet slot. The printed paper after printing is limited and carried by the pull-out printing baffle. When a contract needs to be printed, the flip cover on the laser printer needs to be opened through the flip shaft, and the paper to be copied is placed on the laser printer, and it is scanned by the movable scanner. The scanned data is transferred to the photosensitive drum by the laser beam, then electrostatically adsorbs the toner inside the toner cartridge, and finally fixes the toner on the paper. The paper is discharged through the printing paper outlet slot. The printed paper after printing is limited and carried by the pull-out printing baffle. It can complete the rapid printing and copying of multi-language international trade contracts, and when the printing device moves, the shock-absorbing sleeve and the protective housing can be used to protect and shock-absorb it during movement, reducing the damage to the device caused by external collisions.
[0017] 2. By pulling the power supply cable in the spring winder through the power supply connector to unfold, and then connecting the power supply connector to the power supply socket. After connection, the power supply connector converts the current through the bidirectional power supply and transports it to the left power supply converter and the right power supply converter, and then to the left storage battery and the right storage battery. The left storage battery and the right storage battery absorb and store the transmitted power. The stored power can be reversely output to the printing device after being stabilized by the left power supply converter and the right power supply converter when there is no external wire connection to the printing device, completing the printing power supply work of the printing device. When in use, it can complete the power supply work of the printing device without external power contact, and when the printing device moves, the wire harness can be stored to avoid the wire harness being exposed and getting entangled and damaged.
[0018] 3. In the present invention, a wear-resistant shoulder strap is placed on the shoulder of the carrier, and a buffer shoulder sleeve is used for contact at the contact position. When carrying, since the weight of the printing device pulls the left limit sliding block and the right limit sliding block through the wear-resistant shoulder strap, the left limit sliding block and the right limit sliding block slide inside the inner-grooved limit slide rail. The left limit sliding block and the right limit sliding block slide on the spring sliding rod through the hollow sliding block to limit their movement paths. When the device jolts during movement, the push block on the spring sliding rod pushes the hollow sliding block to perform a reciprocating shock-absorbing movement to relieve the pressure on the carrier's shoulder. When the printing device does not need to be carried, the push block on the spring sliding rod can push the hollow sliding block to reset to complete the storage of the wear-resistant shoulder strap. The spring absorbs the vibration generated during movement, which can improve the carrying comfort while reducing the vibration received by the device and preventing the device from loosening connections. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;
[0020] Figure 2 is a schematic diagram of the unfolded structure of the present invention;
[0021] Figure 3 is a schematic diagram of the disassembled structure of the present invention;
[0022] Figure 4 is a printing structure diagram of the present invention;
[0023] Figure 5 is a power supply structure diagram of the present invention;
[0024] Figure 6 is a disassembled power supply structure diagram of the present invention;
[0025] Figure 7 is a sectional view of the portable component structure of the present invention.
[0026] In the figure: 1. Portable contract printing structure; 2. Movable power supply structure for the printing device; 3. Portable component of the retractable printing device; 101. Laser printer; 102. Toner cartridge; 103. Movable scanner; 104. Printing paper output slot; 105. Shock-absorbing housing; 106. Protective housing; 107. Pull-out printing baffle; 108. Flip-up cover plate; 109. Rotation axis; 110. Rubber shock-absorbing pad; 111. Middle slot; 201. Bidirectional power supply; 202. Spring tightener; 203. Retractable cover plate; 204. Power supply cable; 205. Power supply connector; 206. Left power supply converter; 207. Right power supply converter; 208. Left battery; 209. Right battery; 301. Wear-resistant shoulder strap; 302. Buffer shoulder sleeve; 303. Left limit sliding block; 304. Right limit sliding block; 305. Hollow sliding block; 306. Inner slot limit sliding rail; 307. Lateral baffle; 308. Spring sliding rod; 309. Pushing block. Detailed implementation manners
[0027] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.
[0028] The present invention provides a multi-language international trade contract printing device, including a portable contract printing structure 1. Both sides of the portable contract printing structure 1 are detachably connected with a movable power supply structure 2 for the printing device, and both middle parts of both sides of the movable power supply structure 2 for the printing device are fixedly connected with a portable component 3 of the retractable printing device.
[0029] In an alternative embodiment, the portable contract printing structure 1 includes a laser printer 101. A toner cartridge 102 is detachably connected to the front end of the laser printer 101. A movable scanner 103 is movably connected to the inner surface of the upper end of the laser printer 101. A printing paper outlet slot 104 is fixedly connected to the middle of the front end of the laser printer 101. A shock-absorbing housing 105 is fixedly connected to the outer surface around the laser printer 101. A protective housing 106 is fixedly connected to the outer surface around the shock-absorbing housing 105. A pull-out printing baffle 107 is movably connected to the lower end of the laser printer 101. A flip-up cover 108 is movably connected to the middle of the rear end of the laser printer 101. A rubber shock-absorbing pad 110 is adhesively connected to the middle of the lower end of the flip-up cover 108. A hinge shaft 109 is movably connected to the middle of the rear end of the flip-up cover 108. A middle slot 111 is formed in the middle of the front end of the flip-up cover 108. First, open the inside of the laser printer 101 to add A4 paper. When a contract needs to be printed, just open the pull-out printing baffle 107 at the bottom. After opening, connect it through a wireless local area network or a data connection cable, and transfer the content to be printed to the laser printer 101. After the laser printer 101 receives the data, the laser beam transfers the image information to the photosensitive drum, then electrostatically adsorbs the toner inside the toner cartridge 102, and finally fixes the toner on the paper. The paper is discharged through the printing paper outlet slot 104. The printed paper after printing is limited and carried by the pull-out printing baffle 107. When a contract needs to be printed, the flip-up cover 108 on the laser printer 101 needs to be opened through the hinge shaft 109, and the paper to be copied is placed on the laser printer 101, and scanned by the movable scanner 103. The scanned data is transferred to the photosensitive drum by the laser beam, then electrostatically adsorbs the toner inside the toner cartridge 102, and finally fixes the toner on the paper. The paper is discharged through the printing paper outlet slot 104. The printed paper after printing is limited and carried by the pull-out printing baffle 107. It can complete the rapid printing and copying of multi-language international trade contracts, and when the printing device is moved, the shock-absorbing housing 105 and the protective housing 106 can protect and shock-absorb it during movement to reduce the damage to the device caused by external collisions.
[0030] In an optional embodiment, the mobile power supply structure 2 of the printing device includes a bidirectional power supply 201. A spring tightener 202 is movably connected to the middle of the upper end of the bidirectional power supply 201. A storage cover plate 203 is snap-connected to the middle of the upper end of the bidirectional power supply 201. A power supply coil wire 204 is movably connected to the middle of the spring tightener 202. One end of the power supply coil wire 204 is fixedly connected to a power supply connector 205. A left power supply converter 206 is fixedly connected to one side of the bidirectional power supply 201. A right power supply converter 207 is fixedly connected to the other side of the bidirectional power supply 201. One side connector of the left power supply converter 206 is connected in alignment with a left storage battery 208. The other side connector of the left power supply converter 206 is connected in alignment with a right storage battery 209. When in use, first, the power supply coil wire 204 in the spring tightener 202 is pulled out through the power supply connector 205, and then the power supply connector 205 is connected to a power supply socket. After connection, the power supply connector 205 converts the current through the bidirectional power supply 201 to the left power supply converter 206 and the right power supply converter 207 and then transports it to the left storage battery 208 and the right storage battery 209. The left storage battery 208 and the right storage battery 209 absorb and store the transported power. The stored power can be stably output in reverse to the printing device through the left power supply converter 206 and the right power supply converter 207 without external wire connection to complete the printing power supply work of the printing device. When in use, the power supply work of the printing device can be completed without external power contact, and when the printing device moves, the wire harness can be stored to avoid the wire harness being exposed and getting entangled or damaged.
[0031] In an alternative embodiment, the portable component 3 of the storage-type printing device includes a wear-resistant shoulder strap 301. A buffer shoulder sleeve 302 is movably connected to the middle of the wear-resistant shoulder strap 301. A left limiting sliding block 303 is fixedly connected to one side of the wear-resistant shoulder strap 301, and a right limiting sliding block 304 is fixedly connected to the other side of the wear-resistant shoulder strap 301. Hollow sliding blocks 305 are fixedly connected to the middle of the rear ends of the left limiting sliding block 303 and the right limiting sliding block 304. Both ends of the hollow sliding block 305 are movably connected to an internally grooved limiting slide rail 306. A lateral baffle 307 is fixedly connected to one side of the internally grooved limiting slide rail 306. Spring sliding rods 308 are fixedly connected to the middle of both sides of the internally grooved limiting slide rail 306. A pushing block 309 is movably connected to the outer wall of the spring sliding rod 308. When in use, the wear-resistant shoulder strap 301 is placed on the shoulder of the carrier, and the buffer shoulder sleeve 302 is used for contact at the contact position. When carrying, due to the weight of the printing device, the wear-resistant shoulder strap 301 pulls the left limiting sliding block 303 and the right limiting sliding block 304. The left limiting sliding block 303 and the right limiting sliding block 304 slide inside the internally grooved limiting slide rail 306. The left limiting sliding block 303 and the right limiting sliding block 304 slide on the spring sliding rod 308 through the hollow sliding block 305 to limit their moving paths. When the device moves and jolts, the pushing block 309 on the spring sliding rod 308 pushes the hollow sliding block 305 to perform reciprocating shock-absorbing movements to reduce the pressure on the carrier's shoulder. And when the printing device does not need to be carried, the pushing block 309 on the spring sliding rod 308 can push the hollow sliding block 305 to reset to complete the storage work of the wear-resistant shoulder strap 301. The spring absorbs the vibration generated during movement, which can improve the carrying comfort while reducing the vibration received by the device and avoiding the loosening of the connection of the device.
[0032] In an alternative embodiment, the front end of the laser printer 101 is magnetically connected to the inside of the front end of the pull-out printing baffle 107. One side of the shock-absorbing housing 105 is movably connected to both sides of the pull-out printing baffle 107. The magnetic connection can ensure the connection stability between the pull-out printing baffle 107 and the laser printer 101, and the movement of the pull-out printing baffle 107 is restricted by the shock-absorbing housing 105 to ensure the smoothness of the movement.
[0033] In an alternative embodiment, the upper end of the laser printer 101 is detachably connected to the lower end of the rubber shock pad 110. The upper end inside the laser printer 101 is movably connected to the upper end of the movable scanner 103. The copying surface of the laser printer 101 is in buffered contact through the rubber shock pad 110 to avoid damage to the copying surface, and the movable scanner 103 makes a sliding contact with the laser printer 101 to complete the copying work of the paper.
[0034] In an alternative embodiment, the outer surface around the power supply connector 205 is detachably connected to the middle part of the rear end of the left power supply converter 206. The power supply cable 204 is electrically connected to the left battery 208 and the right battery 209 through the left power supply converter 206 and the right power supply converter 207 respectively. A slot is formed in the middle of the left power supply converter 206 to complete the storage of the power supply connector 205, avoiding damage to the power supply connector 205 caused by dragging, and the left power supply converter 206 and the right power supply converter 207 perform the conversion of the power received by the left battery 208 and the right battery 209 during use.
[0035] In an alternative embodiment, the left limiting slider 303 and the right limiting slider 304 are respectively and detachably connected to the lateral baffle 307 on one side of the inner-slot limiting slide rail 306. The middle pushing block 309 of the inner-slot limiting slide rail 306 is in contact connection with one side of the hollow sliders 305 of the left limiting slider 303 and the right limiting slider 304 respectively. The left limiting slider 303 and the right limiting slider 304 are restricted to the moving positions inside the inner-slot limiting slide rail 306 by the lateral baffle 307, which can prevent the left limiting slider 303 and the right limiting slider 304 from sliding off. And the pushing block 309 pushes the left limiting slider 303 and the right limiting slider 304 to move, which can complete the storage of the shoulder strap and the vibration filtering work when the shoulder strap is in use.
[0036] In an alternative embodiment, the inner surfaces around the protective housing 106 are respectively and detachably connected to the outer surfaces around the left battery 208 and the right battery 209 through the shock-absorbing housing 105. A rectangular installation slot is formed in the middle of one side of the protective housing 106. The middle of one side of the protective housing 106 is detachably connected to the outer surface around the inner-slot limiting slide rail 306 through the rectangular installation slot. The left battery 208 and the right battery 209 synchronously supply power to the printing device to improve the power supply stability and service time, and the inner-slot limiting slide rail 306 is limited and installed through the rectangular installation slot to ensure the stability of the inner-slot limiting slide rail 306 during use.
[0037] Working principle: When in use, first place the wear-resistant shoulder strap 301 on the carrier's shoulder, and make contact at the contact position through the buffer shoulder sleeve 302. When carrying, due to the weight of the printing device, the left limit sliding block 303 and the right limit sliding block 304 are pulled by the wear-resistant shoulder strap 301. The left limit sliding block 303 and the right limit sliding block 304 slide inside the inner-grooved limit slide rail 306. The left limit sliding block 303 and the right limit sliding block 304 slide on the spring slide rod 308 through the hollow sliding block 305 to limit their movement paths. When the device moves and jolts, the push block 309 on the spring slide rod 308 pushes the hollow sliding block 305 to perform reciprocating shock-absorbing movements to relieve the pressure on the carrier's shoulder. And when the printing device does not need to be carried, the push block 309 on the spring slide rod 308 can push the hollow sliding block 305 to reset to complete the storage work of the wear-resistant shoulder strap 301. After moving to the designated position, the power supply connector 205 pulls the power supply coil 204 in the spring tightener 202 to unfold, and then connects to the power supply socket through the power supply connector 205. After connection, the power supply connector 205 converts the current through the bidirectional power supply 201 and delivers it to the left power supply converter 206 and the right power supply converter 207, and then to the left storage battery 208 and the right storage battery 209. The left storage battery 208 and the right storage battery 209 absorb and store the transmitted power. The stored power can be output in reverse to the printing device after being stabilized by the left power supply converter 206 and the right power supply converter 207 when the printing device has no external wire connection, completing the printing power supply work of the printing device. When the printer prints the contract after being powered on, only need to open the pull-out printing baffle 107 at its bottom. After opening, connect through the wireless local area network or the data connection line, and transfer the content to be printed to the laser printer 101. After the laser printer 101 receives the data, the laser beam transfers the image information to the photosensitive drum, then electrostatically adsorbs the toner inside the toner cartridge 102, and finally fixes the toner on the paper. The paper is discharged through the printing paper outlet slot 104. The printed paper after printing is limited and carried by the pull-out printing baffle 107. When the contract needs to be printed, the flip cover 108 on the laser printer 101 needs to be opened through the rotation shaft 109, and the paper to be copied is placed on the laser printer 101, and scanned by the movable scanner 103. The scanned data is transferred to the photosensitive drum by the laser beam, then electrostatically adsorbs the toner inside the toner cartridge 102, and finally fixes the toner on the paper. The paper is discharged through the printing paper outlet slot 104. The printed paper after printing is limited and carried by the pull-out printing baffle 107, which can complete the rapid printing and copying work of multi-language international trade contracts.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multilingual international trade contract printing device, including a portable contract printing structure (1), characterized in that: On both sides of the portable contract printing structure (1), a mobile power supply structure (2) for the printing device is detachably connected. In the middle of both sides of the mobile power supply structure (2) for the printing device, a portable component (3) for the storage type printing device is fixedly connected.
2. The multi-language international trade contract printing device according to claim 1, characterized in that, The portable contract printing structure (1) includes a laser printer (101). A toner cartridge (102) is detachably connected to the front end of the laser printer (101). A movable scanner (103) is movably connected to the inner surface of the upper end of the laser printer (101). A printing paper outlet slot (104) is fixedly connected to the middle of the front end of the laser printer (101). A shock-absorbing housing (105) is fixedly connected to the outer surface around the laser printer (101). A protective housing (106) is fixedly connected to the outer surface around the shock-absorbing housing (105). A pull-out printing baffle (107) is movably connected to the lower end of the laser printer (101). A flip-up cover (108) is movably connected to the middle of the rear end of the laser printer (101). A rubber shock-absorbing pad (110) is adhesively connected to the middle of the lower end of the flip-up cover (108). A rotating shaft (109) is movably connected to the middle of the rear end of the flip-up cover (108). A middle slot (111) is formed in the middle of the front end of the flip-up cover (108).
3. A multilingual international trade contract printing device according to claim 1, characterized in that, The mobile power supply structure (2) for the printing device includes a two-way power supply (201). A spring tightener (202) is movably connected to the middle of the upper end of the two-way power supply (201). A storage cover (203) is snap-connected to the middle of the upper end of the two-way power supply (201). A power supply cable (204) is movably connected to the middle of the spring tightener (202). One end of the power supply cable (204) is fixedly connected to a power supply connector (205). A left power supply converter (206) is fixedly connected to one side of the two-way power supply (201). A right power supply converter (207) is fixedly connected to the other side of the two-way power supply (201). A left battery (208) is connected to the corresponding connector on one side of the left power supply converter (206). A right battery (209) is connected to the corresponding connector on the other side of the left power supply converter (206).
4. A multi-language international trade contract printing device according to claim 1, characterized in that, The portable component (3) of the collapsible printing device includes an abrasion-resistant shoulder strap (301). A buffer shoulder sleeve (302) is movably connected to the middle of the abrasion-resistant shoulder strap (301). A left limiting sliding block (303) is fixedly connected to one side of the abrasion-resistant shoulder strap (301), and a right limiting sliding block (304) is fixedly connected to the other side of the abrasion-resistant shoulder strap (301). Hollow sliding blocks (305) are fixedly connected to the middle parts of the rear ends of the left limiting sliding block (303) and the right limiting sliding block (304). Both ends of the hollow sliding block (305) are movably connected to an internally grooved limiting slide rail (306). A lateral baffle (307) is fixedly connected to one side of the internally grooved limiting slide rail (306). Spring sliding rods (308) are fixedly connected to the middle parts of both sides of the internally grooved limiting slide rail (306). A pushing block (309) is movably connected to the outer wall of the spring sliding rod (308).
5. A multilingual international trade contract printing device according to claim 1, characterized in that, The front end of the laser printer (101) is magnetically connected to the inside of the front end of the pull-out printing baffle (107). One side of the shock-absorbing housing (105) is movably connected to both sides of the pull-out printing baffle (107).
6. The multi-language international trade contract printing device according to claim 5, characterized in that The upper end of the laser printer (101) is detachably connected to the lower end of the rubber shock-absorbing pad (110). The inside of the upper end of the laser printer (101) is movably connected to the upper end of the movable scanner (103).
7. A multilingual international trade contract printing device according to claim 1, characterized in that The outer surface around the power supply connector (205) is detachably connected to the middle part of the rear end of the left power supply converter (206). The power supply cable (204) is electrically connected to the left battery (208) and the right battery (209) through the left power supply converter (206) and the right power supply converter (207) respectively.
8. A multilingual international trade contract printing device according to claim 1, characterized in that, The left limiting sliding block (303) and the right limiting sliding block (304) are respectively connected to the lateral baffle (307) on one side of the internally grooved limiting slide rail (306) in a limiting manner. The pushing blocks (309) in the middle of the internally grooved limiting slide rail (306) are respectively in contact connection with one side of the hollow sliding blocks (305) of the left limiting sliding block (303) and the right limiting sliding block (304).
9. A multilingual international trade contract printing device according to claim 1, characterized in that, The inner surfaces around the protective housing (106) are respectively detachably connected to the outer surfaces around the left battery (208) and the right battery (209) through the shock-absorbing housing (105). A rectangular installation groove is formed in the middle of one side of the protective housing (106). The outer surface around the internally grooved limiting slide rail (306) is detachably connected to the middle of one side of the protective housing (106) through the rectangular installation groove.