CN214315821U

CN214315821U - Locking connecting device of case and hand tool of laser equipment, hand tool and laser equipment

Info

Publication number: CN214315821U
Application number: CN202023169913.6U
Authority: CN
Inventors: 单肖楠; 王迪; 叶淑娟; 王德林
Original assignee: Yangzhou Yangxin Laser Technology Co ltd
Current assignee: Yangzhou Yangxin Laser Technology Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-09-28
Anticipated expiration: 2030-12-24

Abstract

Laser equipment's quick-witted case and locking connection device, hand utensil and laser equipment of hand utensil relate to laser equipment technical field, solve current connecting device inconvenient problem of operation when the hand utensil is taken out from quick-witted case, include: the rotary handle is connected with the hand tool, the rotating shaft is connected with the rotary handle, the positioning rod and the spring are arranged on the hand tool, one end of the positioning rod can be inserted into the positioning rod inserting hole, a lug is arranged in the middle of the positioning rod, the other end of the positioning rod corresponds to the rotating shaft, and the compression degree of the spring when the positioning rod is inserted into the positioning rod inserting hole is greater than that when the positioning rod is separated from the positioning rod inserting hole; the positioning rod can be inserted into the positioning rod inserting hole by rotating the handle in the forward direction; through the restoring force of reverse rotation handle and spring, the locating lever can break away from the locating lever spliced eye. A hand tool comprises a shell and a locking connecting device. A laser device comprises a case and a hand tool connected with the case through a locking connection device. The utility model discloses realize the convenient dismouting of the hand utensil on the laser equipment.

Description

Locking connecting device of case and hand tool of laser equipment, hand tool and laser equipment

Technical Field

The utility model relates to a laser equipment technical field, concretely relates to locking connection device, hand utensil and laser equipment of quick-witted case and hand utensil of laser equipment.

Background

The fields such as laser cutting, medical treatment, medical cosmetology are nowadays often that the quick-witted case of laser equipment cooperates the hand utensil to use, and the hand utensil mounting bracket detachable of hand utensil and quick-witted case is connected, and the connecting device of current hand utensil and quick-witted case all combines with the spring button formula, and the device is shown in figure 1, need press button 2 during the closure, makes the spring compression, and the button is pressed suitable position, pushes into the hand utensil mounting bracket 1 the inside on the quick-witted case with hand utensil 3 again. When a spring is pressed, the force is insufficient, so that the spring cannot be installed in place at one time; when taking out, the key 2 needs to be pressed down, and the highest position of the key 2 needs to be lower than the innermost side surface of the case, and the key can be taken out. The laser equipment with the existing hand tool and the hand tool also has the problem that the hand tool is inconvenient to take out when being taken down from the case.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the prior connecting device is inconvenient to operate when the hand tool is taken out from the case, the utility model provides a case of a laser device and a locking connecting device of the hand tool, the hand tool and the laser device.

The utility model discloses a solve the technical scheme that technical problem adopted as follows:

a locking and connecting device for a case and a hand tool of laser equipment is characterized in that a positioning rod inserting hole is formed in a hand tool mounting rack on the case; the method comprises the following steps:

the rotary handle is connected with the hand tool and can rotate relative to the hand tool;

the rotating shaft is connected with the rotating handle and can rotate synchronously with the rotating handle;

the positioning rod is arranged on the hand tool, one end of the positioning rod can be inserted into the positioning rod inserting hole, a convex block is arranged in the middle of the positioning rod, and the other end of the positioning rod is arranged corresponding to the rotating shaft;

the spring, one end of the said spring connects the lug another end and connects the hand tool, the spring is in the compression state, the compression degree of the spring is greater than the compression degree of the spring when the locating lever breaks away from the locating lever jack when the locating lever is inserted into the locating lever jack;

the positioning rod can be inserted into the positioning rod inserting hole by rotating the handle in the forward direction; when the locating lever inserts the locating lever spliced eye, through the restoring force of reverse rotation handle and spring, the locating lever can break away from the locating lever spliced eye.

Further, the rotating handle is in threaded connection with the hand tool.

Furthermore, the rotating handle is connected to pivot one end, is equipped with oval boss on the terminal surface of the pivot other end, and the other end of locating lever corresponds oval boss lateral wall setting, and when the locating lever inserted the locating lever spliced eye, the locating lever contact was connected the lateral wall region that oval major axis extreme point corresponds on the oval boss lateral wall, and when the locating lever broke away from the locating lever spliced eye, the locating lever contact was connected the lateral wall region that oval minor axis extreme point corresponds on the oval boss lateral wall.

Furthermore, a stop block is arranged on the side wall of the oval boss and used for limiting the forward rotation and the reverse rotation of the rotating shaft.

Furthermore, the two check blocks are uniformly arranged on the side wall of the oval boss along the oval circumferential direction, and the range of the maximum angle within which the rotating shaft can rotate is larger than 90 degrees and smaller than 120 degrees.

The utility model provides a hand tool, hand tool is used for exporting laser, and hand tool includes the casing, its characterized in that, hand tool still including the backup pad of connecting the casing with a locking connection device who is used for laser equipment's quick-witted case and hand tool, the casing is connected to rotatory handle, casing or backup pad are connected to the spring other end, correspond the locating lever spliced eye on the casing and be equipped with and pass the hole, the locating lever setting is in the backup pad, the locating lever is pegged graft and is passed the hole.

Furthermore, a slide way is arranged on the supporting plate, and the positioning rod is connected with the slide way in a sliding manner through a sliding block.

Furthermore, the hand tool further comprises a water joint, a water pipe through hole is formed in the shell, one end of the water joint is connected with the first water pipe, the other end of the water joint is connected with the second water pipe, and the second water pipe penetrates through the water pipe through hole and is externally connected with a water cooling machine.

Further, the backup pad sets up in the casing, is equipped with axle clearing hole and water swivel mounting hole in the backup pad, and the middle part of pivot is arranged in the axle clearing hole, and the water swivel is installed on the water swivel mounting hole.

The utility model provides a laser equipment, laser equipment includes quick-witted case and hand utensil, be equipped with laser source in the machine case or the hand utensil, the hand utensil is used for exporting the laser of laser source transmission, the hand utensil adopts to include a hand utensil, the hand utensil passes through locking connecting device and can dismantle with the hand utensil mounting bracket on the quick-witted case and be connected.

The utility model has the advantages that:

the utility model discloses a locking connection device that is used for quick-witted case of laser equipment and hand utensil has solved the installation of former dress formula hand utensil and has demolishd the problem that needs very big strength could install and dismantle, the utility model discloses a rotatory handle, pivot, locating lever and spring now only need through twist reverse rotatory handle alright light installation and dismantlement, and the dismouting is convenient.

The connection and the disassembly of the hand tool with the locking connection device and the case are easy to operate, and time and labor are saved.

The laser equipment with the hand tool has the advantage that the hand tool and the case are convenient to mount and dismount, and the efficiency of laser operation of a user is improved.

Drawings

Fig. 1 is a schematic structural diagram of a conventional connecting device between a hand tool and a chassis.

Fig. 2 is an exploded view of the locking connection device for the case and the handpiece of the laser device according to the present invention.

Fig. 3 is a sectional view of a part of the locking connection device for the case and the handpiece of the laser device according to the present invention.

Fig. 4 is an unlocking state diagram of the locking connection device for the case and the handpiece of the laser device according to the present invention.

Fig. 5 is a schematic diagram of a locking state of the locking connection device for the case and the handpiece of the laser apparatus according to the present invention.

Fig. 6 is a perspective view of the rotating shaft and the positioning rod in a locking state of the locking connection device for the case and the hand tool of the laser device of the present invention.

In the figure: 1. hand utensil mounting bracket, 1.1, locating lever spliced eye, 2, button, 3, hand utensil, 4, locating lever, 5, lug, 6, spring, 7, oval boss, 8, dog, 9, pivot, 10, rotatory handle, 11, casing, 11.1, pass the hole, 12, screw thread through-hole, 13, water pipe pass through the mouth, 14, backup pad, 14.1, axle clearing hole, 14.2, water swivel mounting hole, 15, water swivel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

A locking connection device for a case and a handpiece of a laser apparatus, as shown in fig. 2, comprising: a rotating handle 10, a rotating shaft 9, a positioning rod 4 and a spring 6. The machine case is provided with a hand tool mounting rack 1, the hand tool is detachably connected with the hand tool mounting rack 1, and the hand tool mounting rack 1 is provided with a positioning rod inserting hole 1.1. Fig. 3 is a sectional view showing a partial structure of the lock connecting device, and the swing handle 10 is connected to the hand tool, and the swing handle 10 can be rotated with respect to the hand tool. The rotating shaft 9 is connected with a rotating handle 10, and the rotating shaft 9 can rotate synchronously with the rotating handle 10. Locating lever 4 sets up on the hand utensil, and locating lever spliced eye 1.1 can be inserted to the one end of locating lever 4, and the middle part of locating lever 4 is equipped with lug 5, and lug 5 and locating lever 4 can be integrated into one piece structure, and the other end of locating lever 4 corresponds the pivot 9 setting, and the other end of locating lever 4 corresponds the other end of pivot 9 usually. The hand utensil is connected to 5 other ends of lug of spring 6 one end connection, and the spring 6 that is located between lug 5 and the hand utensil is in compression state always, and the compression degree of spring 6 is greater than the compression degree of spring 6 when locating lever 4 breaks away from locating lever spliced eye 1.1 when locating lever 4 inserts locating lever spliced eye 1.1. When the positioning rod 4 is separated from the positioning rod inserting hole 1.1, the positioning rod 4 can be inserted into the positioning rod inserting hole 1.1 by rotating the handle 10 in the forward direction; when locating lever 4 inserts in locating lever spliced eye 1.1, through the restoring force of reverse rotation handle 10 and spring 6, locating lever 4 can break away from locating lever spliced eye 1.1.

The rotatory handle 10 is connected to 9 one ends of pivot (the one end of keeping away from hand utensil mounting bracket 1), the pivot 9 other end (the one end that closes on hand utensil mounting bracket 1) corresponds locating lever 4, be equipped with an oval boss 7 on the terminal surface of the pivot 9 other end, the terminal surface of the pivot 9 other end is connected to an oval surface of oval boss 7, the lateral wall perpendicular to pivot 9 terminal surface of oval boss 7, the cross-section of the oval boss 7 gained of plane interception of perpendicular to pivot 9 center pin is oval plane, the axial of the cross section perpendicular to pivot 9 of oval boss 7 promptly. Locating lever spliced eye 1.1 can be inserted to the one end of locating lever 4, the other end of locating lever 4 corresponds oval boss 7 lateral wall setting, specifically be the lateral wall of contact connection oval boss 7, when locating lever 4 inserts locating lever spliced eye 1.1, the lateral wall that oval major axis extreme point corresponds on the oval boss 7 lateral wall is connected in the contact of locating lever 4 region, when locating lever 4 breaks away from locating lever spliced eye 1.1, the lateral wall that oval minor axis extreme point corresponds on the oval boss 7 lateral wall is connected in the contact of locating lever 4 region. The locating lever 4 is two, establishes respectively in the left and right sides of pivot 9, respectively sets up a locating lever spliced eye 1.1 on 1 left side wall of hand utensil mounting bracket and the right side wall, and the locating lever spliced eye 1.1 of 1 left side wall of hand utensil mounting bracket corresponds the left end of pivot 9 left side locating lever 4, and the locating lever spliced eye 1.1 of 1 right side wall of hand utensil mounting bracket corresponds the right-hand member of pivot 9 right side locating lever 4.

The lateral wall of oval boss 7 is connected dog 8, and dog 8 sets up on the terminal surface of the pivot 9 other end (the terminal surface that closes on hand utensil mounting bracket 1), and the lateral wall of oval boss 7 is connected to the lateral wall of dog 8, and dog 8, oval boss 7 and pivot 9 structure as an organic whole, and dog 8 is used for pivot 9 forward rotation and reverse rotation's spacing. The stop block 8 is not positioned on the side wall area which is just corresponding to the elliptic major axis end point of the elliptic boss 7, and is not positioned on the side wall area which is just corresponding to the elliptic minor axis end point of the elliptic boss 7. The two check blocks 8 are evenly arranged on the side wall of the oval boss 7 along the oval circumference of the oval boss 7, and the two check blocks 8 are arranged oppositely. The stop block 8 is used for limiting rotation of the rotating shaft 9, and the stop block 8 serves as a rotary limiting block for forward rotation, rotation and locking and a rotary limiting block for reverse rotation, resetting and unlocking. Two dogs 8 are respectively called a first dog 8 and a second dog 8, two positioning rods 4 are respectively called a first positioning rod 4 and a second positioning rod 4, the first dog 8 serves as a forward rotation limit dog 8 of the first positioning rod 4 and also serves as a reverse rotation limit dog 8 of the second positioning rod 4, and the second dog 8 serves as a forward rotation limit dog 8 of the second positioning rod 4 and also serves as a reverse rotation limit dog 8 of the first positioning rod 4. The rotating shaft 9 is rotated in the forward direction until the positioning rod 4 is inserted into the positioning rod inserting hole 1.1, namely, the rotating shaft is rotated until the positioning rod 4 contacts and connects with the side wall area corresponding to the elliptic major axis end point on the side wall of the elliptic boss 7 (the rotating shaft is rotated until the positioning rod 4 contacts and connects with the side wall area corresponding to the elliptic major axis end point on the side wall of the elliptic boss 7, or the rotating shaft 4 just exceeds the side wall area corresponding to the elliptic major axis end point on the side wall of the elliptic boss 7), at the moment, the positioning rod 4 can contact and connect with the stop block 8, the rotating shaft 9 can not continue to rotate in the forward direction due to the limit of the stop block 8, at the moment, the rotating shaft 9 can only be rotated in the reverse direction, the rotating shaft 9 can be rotated until the positioning rod 4 contacts and connects with the side wall area corresponding to the elliptic end point on the side wall of the elliptic major axis end point on the side wall of the elliptic boss 7 (the rotating shaft 4 contacts and connects with the side wall area corresponding to the elliptic minor axis end point on the side wall of the elliptic boss 7, or rotating until the positioning rod 4 just exceeds the side wall area corresponding to the end point of the elliptical short axis on the side wall of the elliptical boss 7), and reversely rotating until the positioning rod 4 can contact the connecting stop block 8 or is about to contact the stop block 8, and the rotating shaft 9 can not continue to reversely rotate due to the limitation of the stop block 8. The maximum rotatable angle of the rotating shaft 9 is in a range of 90 ° or more and 120 ° or less. Preferably, the angle is more than 90 degrees, and when the hand tool can be separated from the case, the positioning rod 4 corresponds to the side wall area corresponding to the short shaft end point of the elliptical end on the side wall of the elliptical boss 7, as shown in fig. 4; when the hand tool is installed in the case, the positioning rod 4 slightly exceeds the end point of the long axis of the ellipse, referring to fig. 5 and 6, the other end (end close to the case) of the positioning rod 4 is positioned between the side wall area corresponding to the end point of the long axis of the ellipse and the positive rotation limit stop 8 corresponding to the positioning rod 4; through setting up that the pivot 9 can be rotatory maximum angle surpasss 90, just the lateral wall region that corresponds is spacing to locating lever 4 jointly to dog 8 and the oval major axis extreme point of positive rotation limiting displacement, can guarantee the stability of hand utensil and quick-witted case installation state.

The above-mentioned rotary handle 10 is screwed with the hand tool, referring to fig. 2, the forward and reverse rotary handles 10 are both formed by rotating the rotary handle 10 in corresponding screw threads on the hand tool.

A hand tool comprises a shell 11, a supporting plate 14 connected with the shell 11 and the locking connecting device. The hand tool further comprises a light emitting mechanism which is arranged in the shell 11 and connected with the case, and the light emitting mechanism is the prior art and is not described herein in detail. The housing 11 includes a side wall and a rear surface connected to the side wall, the rear surface being provided with a screw through hole 12, and the rotary knob 10 being screw-connected to the screw through hole 12. 11 lateral walls of casing are connected along the outer border of backup pad 14, and backup pad 14 is located casing 11, and pivot 9 is located casing 11, is equipped with on the 11 lateral walls of casing and passes hole 11.1, passes the setting of hole 11.1 corresponding locating lever spliced eye 1.1, passes the setting of hole 11.1 corresponding locating lever 4, and locating lever 4 pegs graft and passes hole 11.1, and locating lever 4 sliding connection backup pad 14. Be equipped with the slide on the backup pad 14, be equipped with the slider on the slide, locating lever 4 link block, locating lever 4 passes through the slider and the slide is installed in backup pad 14, and passes through slider sliding connection slide. Through the rotation of pivot 9, locating lever 4 can slide along the slide. Forward rotation pivot 9, the one end of locating lever 4 can be from inserting locating lever spliced eye 1.1 through hole 11.1 in, and reverse rotation pivot 9, the one end of locating lever 4 can break away from locating lever spliced eye 1.1. The projection 5 and the spring 6 are located in the housing 11. One end of the spring 6 is connected with the convex block 5, and the other end is connected with the shell 11 or the supporting plate 14, and the other end of the spring 6 is connected with the supporting plate 14 in the embodiment. The hand tool further comprises a water joint 15, a water pipe through hole 13 is formed in the lower side of the side wall of the shell 11, one end of the water joint 15 is connected with the machine box through a first water pipe or is connected with the light emitting mechanism through the first water pipe, the other end of the water joint is connected with a second water pipe, the second water pipe penetrates through the water pipe through hole 13 and is externally connected with a water cooler, and an optical fiber or a power supply connecting wire for light emitting can also penetrate through the water pipe through hole 13. The support plate 14 is provided with a shaft passing hole 14.1 and a water joint mounting hole 14.2, the shaft passing hole 14.1 is used for supporting the rotating shaft 9, the rotating shaft 9 passes through the shaft passing hole 14.1, the middle part of the rotating shaft 9 is positioned in the shaft passing hole 14.1, and the water joint 15 is mounted on the water joint mounting hole 14.2. The support plate 14 is also provided with a power supply interface, typically located above the shaft passing hole 14.1 and the water connector mounting hole 14.2.

A laser device comprises a case and the hand tool, wherein the case is provided with a hand tool mounting frame 1. The case or the hand tool is internally provided with a laser light source, the hand tool is used for outputting laser emitted by the laser light source, if the laser light source is arranged in the case, the light emitting mechanism in the hand tool can be a light emitting optical fiber, if the laser light source is arranged in the hand tool, the laser light source is the light emitting mechanism, and the case is internally provided with a power supply. The hand tool is detachably connected with the hand tool mounting frame 1 on the case through a locking connection device.

The realization process of the detachable connection between the hand tool and the hand tool mounting rack 1 through the locking connection device is as follows: when the hand tool is used and needs to be placed on a case, the positioning rod 4 is confirmed not to protrude out of the hand tool shell 11, the hand tool is placed corresponding to the hand tool mounting frame 1, the hole 11.1 corresponds to an upper positioning rod insertion hole 1.1, the handle 10 is rotated in the forward direction, the oval boss 7 gradually contacts the positioning rod 4 from the original short shaft end point region to the long shaft end point region to contact the positioning rod 4 to move, the positioning rod 4 slides in the direction far away from the rotating shaft 9 through the extrusion of the oval boss 7, the compression degree of the spring 6 is gradually increased, the forward rotation is stopped until the rotating handle 10 cannot rotate, the stop block 8 limits the positioning rod 4 in the forward direction at the moment, the positioning rod 4 slides to the positioning rod 4 to be inserted into the positioning rod insertion hole 1.1, and the hand tool and the case are installed and locked; when the hand tool is needed to be used, the rotating handle 10 is rotated reversely, the oval boss 7 gradually moves from the original long shaft end point region contact positioning rod 4 to the short shaft end point region contact positioning rod 4, the positioning rod 4 slides along the slide way to the direction of the rotating shaft 9 by virtue of the restoring force of the spring 6, the reverse rotation is stopped until the rotating handle 10 cannot rotate, the stop block 8 limits the reverse rotation of the positioning rod 4 at the moment, the positioning rod 4 slides until the positioning rod 4 is separated from the positioning rod inserting hole 1.1, the hand tool is detached from the case, and the hand tool can be taken down from the case to perform related operations of laser output.

The utility model discloses a locking connection device that is used for quick-witted case of laser equipment and hand utensil has solved the installation of former dress formula hand utensil and has demolishd the problem that needs very big strength could install and dismantle, the utility model discloses a rotatory handle 10, pivot 9, locating lever 4 and spring 6 now only need through twist reverse rotatory handle 10 alright light installation and dismantlement, and the dismouting is convenient. The connection and the disassembly of the hand tool with the locking connection device and the case are easy to operate, and time and labor are saved. The laser equipment with the hand tool has the advantage that the hand tool and the case are convenient to mount and dismount, and the efficiency of laser operation of a user is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The locking and connecting device of the case and the hand tool of the laser equipment is characterized in that a positioning rod inserting hole (1.1) is formed in a hand tool mounting frame (1) on the case; it is characterized by comprising:

the rotary handle (10), the said rotary handle (10) connects the hand tool, can rotate relative to hand tool;

the rotating shaft (9), the rotating shaft (9) is connected with the rotating handle (10) and can rotate synchronously with the rotating handle (10);

the positioning rod (4) is arranged on the hand tool, one end of the positioning rod (4) can be inserted into the positioning rod inserting hole (1.1), the middle part of the positioning rod (4) is provided with a convex block (5), and the other end of the positioning rod (4) is arranged corresponding to the rotating shaft (9);

the spring (6), one end of the spring (6) is connected with the lug (5) and the other end is connected with the hand tool, the spring (6) is in a compression state, and the compression degree of the spring (6) when the positioning rod (4) is inserted into the positioning rod insertion hole (1.1) is greater than the compression degree of the spring (6) when the positioning rod (4) is separated from the positioning rod insertion hole (1.1);

the positioning rod (4) can be inserted into the positioning rod inserting hole (1.1) by rotating the handle (10) in the forward direction; when locating lever (4) inserted locating lever spliced eye (1.1), restoring force through reverse rotation handle (10) and spring (6), locating lever (4) can break away from locating lever spliced eye (1.1).

2. The locking connection device of the cabinet and the hand tool of the laser device according to claim 1, characterized in that the rotary handle (10) is screwed with the hand tool.

3. The locking and connecting device for the case and the handpiece of the laser device according to claim 1, wherein one end of the rotating shaft (9) is connected to the rotating handle (10), an elliptical boss (7) is provided on the end surface of the other end of the rotating shaft (9), the other end of the positioning rod (4) is provided corresponding to the sidewall of the elliptical boss (7), when the positioning rod (4) is inserted into the positioning rod insertion hole (1.1), the positioning rod (4) contacts and connects the sidewall region corresponding to the elliptical major axis end point on the sidewall of the elliptical boss (7), and when the positioning rod (4) is separated from the positioning rod insertion hole (1.1), the positioning rod (4) contacts and connects the sidewall region corresponding to the elliptical minor axis end point on the sidewall of the elliptical boss (7).

4. The locking and connecting device for the case and the handpiece of the laser equipment according to claim 3, wherein the side wall of the oval boss (7) is provided with a stopper (8), and the stopper (8) is used for limiting the forward rotation and the reverse rotation of the rotating shaft (9).

5. The locking and connecting device for the case and the handpiece of the laser equipment according to claim 4, wherein the number of the stoppers (8) is two, the two stoppers (8) are uniformly arranged on the side wall of the elliptical boss (7) along the circumference of the ellipse, and the maximum angle of rotation of the rotating shaft (9) is greater than 90 degrees and less than 120 degrees.

6. A hand tool for outputting laser light, the hand tool comprising a housing (11), characterized in that the hand tool further comprises a support plate (14) for connecting the housing (11) and a locking connection device for the case and the hand tool of the laser device according to any one of claims 1 to 5, the rotary handle (10) is connected to the housing (11), the other end of the spring (6) is connected to the housing (11) or the support plate (14), a through hole (11.1) is provided in the housing (11) corresponding to the positioning rod insertion hole (1.1), the positioning rod (4) is provided in the support plate (14), and the positioning rod (4) is inserted in the through hole (11.1).

7. A hand tool according to claim 6, characterised in that the support plate (14) is provided with a slide, and the positioning rod (4) is slidably connected to the slide by means of a slide.

8. A hand tool according to claim 6, further comprising a water connector (15), wherein a water pipe passing port (13) is formed in the housing (11), one end of the water connector (15) is connected with a first water pipe, the other end of the water connector is connected with a second water pipe, and the second water pipe passes through the water pipe passing port (13) and is externally connected with a water cooler.

9. A hand tool according to claim 8, characterised in that the support plate (14) is arranged in the housing (11), the support plate (14) is provided with a shaft passage hole (14.1) and a water joint mounting hole (14.2), the middle part of the rotary shaft (9) is located in the shaft passage hole (14.1), and the water joint (15) is mounted on the water joint mounting hole (14.2).

10. A laser device comprising a case and a hand tool, wherein a laser light source is arranged in the case or the hand tool, and the hand tool is used for outputting laser emitted by the laser light source, characterized in that the hand tool comprises the hand tool according to claim 6, and the hand tool is detachably connected with a hand tool mounting frame (1) on the case through a locking connection device.