Hydro-optic needle head air tightness detection equipment

Abstract

The utility model provides a hydro-optical needle head air tightness detection device, which comprises a rack, a clamp, a detection unit and a control unit, and is characterized in that the rack comprises a positioning seat, the positioning seat is provided with a fixing position, the clamp is provided with a plurality of accommodating clamping positions, the clamp is provided with sealing elements at the accommodating clamping positions, and the clamp can be installed in the fixing position; the detection unit comprises a driving mechanism, a moving mechanism and a pressure measuring mechanism, the driving mechanism is installed on the rack and can drive the moving mechanism to move towards or away from the clamp, the moving mechanism comprises a plurality of air taps, the air taps are in one-to-one correspondence with the containing clamping positions, the pressure measuring mechanism comprises an air source and a plurality of pressure gauges, the air source is connected with the air taps, and the pressure gauges are in one-to-one correspondence with the containing clamping positions. The multiple pressure gauges are in one-to-one correspondence with the multiple air taps, one pressure gauge is connected between one air tap and the air source which are correspondingly arranged, the control unit is electrically connected with the driving mechanism and the air source, and the hydro-optical needle head air tightness detection equipment has the advantage of being high in detection precision.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to an air tightness detection device for a water light needle tip. Background Art

[0002] During the production process of hyaluronic acid needles, it is necessary to test the air tightness of hyaluronic acid needles to prevent leakage at the connection between the needle tube and the needle seat during subsequent use. At present, the air tightness test of hyaluronic acid needles often uses the flow method to test their air tightness, but the test scheme has disadvantages such as inaccurate testing and high misjudgment rate; for example, when the hyaluronic acid needle leaks due to adhesive detachment, it cannot be accurately identified. Summary of the invention

[0003] In order to solve the above problems, the main purpose of the utility model is to provide a water light needle needle air tightness detection device with high detection accuracy.

[0004] In order to achieve the main purpose of the utility model, the utility model provides an hyaluronic acid needle tip air tightness detection device, which includes a frame, a fixture, a detection unit and a control unit. The frame includes a positioning seat, the positioning seat has a fixed position, the fixture is provided with a plurality of accommodating positions, the fixture is provided with a seal at the accommodating position, and the fixture can be installed in the fixed position. The detection unit includes a driving mechanism, a moving mechanism and a pressure measuring mechanism. The driving mechanism is installed on the frame, and the driving mechanism can drive the moving mechanism to move toward or back to the fixture. The moving mechanism includes a plurality of air nozzles, and the plurality of air nozzles correspond one-to-one to the plurality of accommodating positions. The pressure measuring mechanism includes an air source and a plurality of pressure gauges, the air sources are respectively connected to the plurality of air nozzles, and the plurality of pressure gauges correspond one-to-one to the plurality of air nozzles, and a pressure gauge is connected between a corresponding air nozzle and the air source, and the control unit is respectively electrically connected to the driving mechanism and the air source.

[0005] As can be seen from the above, the fixture is used to store and fix the hyaluronic acid needle head, and to seal the needle tube of the hyaluronic acid needle head; the positioning seat is used to fix the fixture in the detection position, so that the driving mechanism can drive the air nozzle on the moving mechanism to accurately connect with the flow channel on the connecting part of the hyaluronic acid needle head; the pressure measuring mechanism inflates each hyaluronic acid needle head through the air source and the air nozzle, and cooperates with the seal on the fixture to perform a pressure holding test on the inflated hyaluronic acid needle head. The pressure gauge allows users to intuitively understand the air pressure value in the hyaluronic acid needle head during the pressure holding process, so that customers can judge whether the corresponding hyaluronic acid needle head has a leakage problem. Through the design of the hyaluronic acid needle head air tightness detection equipment, it can simultaneously perform air tightness detection on multiple hyaluronic acid needle heads, improve detection efficiency, and at the same time, it can more accurately identify whether the tested hyaluronic acid needle head has a leakage problem, thereby improving detection accuracy.

[0006] A preferred solution is that the positioning seat includes a seat body and a clamping mechanism, the seat body is provided with a first positioning block and a second positioning block, the clamping mechanism and the second positioning block are distributed along the extension direction of the first positioning block, the clamping mechanism includes a first driving module and a pressure block, the first driving module is installed on the seat body, the first driving module can drive the pressure block to move toward or away from the second positioning block along the extension direction, and a fixed position is formed between the first positioning block, the second positioning block and the pressure block.

[0007] As can be seen from the above, this design makes it easier to take and place the fixture, and can effectively ensure the stability of the fixture during the test, avoiding misalignment of the fixture that causes the air nozzle to be unable to accurately dock with the corresponding hyaluronic acid needle, thereby ensuring the accuracy and reliability of the hyaluronic acid needle air tightness test equipment.

[0008] A further solution is that the driving mechanism includes more than two first guide columns, a mounting plate and a second driving module, the first guide column is installed on the frame, the first guide column is parallel to the height direction of the frame, the moving mechanism is slidably connected to the first guide column, the moving mechanism is located above the clamp, the mounting plate is installed on the top of the first guide column, the second driving module is installed on the mounting plate, and the second driving module can drive the moving mechanism to slide along the first guide column toward or away from the clamp.

[0009] As can be seen from the above, this design enables the second driving module to reliably and smoothly drive the moving mechanism to move toward the hyaluronic acid needle tip on the fixture.

[0010] A further solution is that the moving mechanism also includes a fixed plate and a movable plate, the fixed plate is slidably connected to the first guide column, the fixed plate is connected to the driving end of the second driving module, the movable plate is provided with a second guide column, the second guide column is slidably connected to the fixed plate, a shock absorbing element is provided between the movable plate and the fixed plate, the air nozzle is respectively slidably connected to the movable plate and the fixed plate, an elastic member is provided between the air nozzle and the fixed plate, and the elastic member forces the air nozzle to move toward the clamp in an axial direction parallel to the second guide column.

[0011] As can be seen from the above, when the second driving module drives the moving mechanism to move toward the fixture, after the air nozzle contacts the hyaluronic acid needle head on the fixture, the movable plate of the moving mechanism can slide relative to the fixed plate through the second guide column and the shock-absorbing element, and the air nozzle can slide relative to the movable plate and the fixed plate through the elastic member, thereby playing a certain shock-absorbing and buffering role to prevent the hyaluronic acid needle head and / or the air nozzle from being damaged; at the same time, the air nozzle can also be pressed against the connecting part of the hyaluronic acid needle head under the action of the elastic member to ensure the air tightness between the air nozzle and the connecting part, thereby ensuring the accuracy and reliability of the detection.

[0012] A further solution is that the first driving module is a first linear cylinder connected to an air source; the second driving module is a second linear cylinder connected to an air source.

[0013] As can be seen from the above, this design enables the first driving module, the second driving module and the pressure measuring mechanism to use the same gas source, thereby reducing costs.

[0014] Another preferred solution is that the pressure gauge is a digital pressure gauge, and the pressure gauge is electrically connected to the control unit; the control unit includes a display screen, and the display screen displays multiple display areas, and the multiple display areas correspond one-to-one to the multiple pressure gauges.

[0015] As can be seen from the above, the use of a digital pressure gauge allows users to more intuitively obtain the current pressure value inside the corresponding hyaluronic acid needle tip; by designing the display area of ​​the control unit, users can directly know the detection status of each hyaluronic acid needle tip through the display screen.

[0016] A further solution is that the water light needle needle air tightness detection equipment also includes an alarm, the alarm is electrically connected to the control unit, and the control unit can control the alarm to emit light and / or sound alarm.

[0017] As can be seen from the above, the setting of the alarm can clearly remind the user to take timely action when the needle tip of the hyaluronic acid needle fails the inspection.

[0018] Another preferred solution is that the sealing member is a sealing gasket, and the sealing gasket is made of silicone, nitrile rubber or fluororubber.

[0019] It can be seen from the above that, through the design of the seal, the seal can cooperate with the needle seat, air nozzle and air source of the hyaluronic acid needle to achieve stable and reliable sealing, so as to ensure the reliability and accuracy of the detection.

[0020] A further solution is that the water light needle needle air tightness detection equipment also includes a grating unit, the grating unit includes a transmitter and a receiver; along the insertion direction of the clamp, the grating unit is located at the upstream end of the fixed position; in the first direction, the fixed position is located between the transmitter and the receiver, the first direction is perpendicular to the insertion direction, and the transmitter and the receiver are both electrically connected to the control unit.

[0021] As can be seen from the above, the grating unit can ensure the safety of the user when taking and placing the fixture, and prevent the user's hands from being crushed during the process of taking and placing the fixture.

[0022] A further solution is that the hyaluronic acid needle tip air tightness detection device also includes a first button and a second button, the first button is mounted on the frame and electrically connected to the control unit, the second button is mounted on the frame and electrically connected to the control unit, and in the first direction, the grating unit is located between the first button and the second button.

[0023] It can be seen from the above that this design can further improve the safety of users when using the hyaluronic acid needle air tightness detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an embodiment of the utility model of the air tightness detection device for the water light needle tip.

[0025] Figure 2 This is a structural diagram of an embodiment of the utility model of the air tightness detection device for the hyaluronic acid needle with some components omitted.

[0026] Figure 3 This is a structural diagram of the frame of the embodiment of the water light needle air tightness detection equipment of the utility model after omitting some components.

[0027] Figure 4 It is a cross-sectional view of a fixture of an embodiment of the utility model of the air tightness detection device for the hyaluronic acid needle.

[0028] Figure 5 It is a structural diagram of the moving mechanism of the embodiment of the water light needle needle air tightness detection device of the utility model after omitting some components.

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0030] Reference Figure 1 The air tightness detection device 100 for the water light needle tip includes a frame 1, a clamp 2, a detection unit 3, a control unit 4, an alarm 5, a grating unit 6, a first button 71 and a second button 72.

[0031] Combination Figure 2 The frame 1 includes a positioning seat 11, and the positioning seat 11 has a fixing position 111 for positioning and fixing the fixture 2, so that the hyaluronic acid needle head 10 on the fixture 2 can be accurately docked with the detection unit 3.

[0032] Preferably, if Figure 3As shown, the positioning seat 11 includes a seat body 112 and a clamping mechanism 113. The seat body 112 is provided with a first positioning block 1121 and a second positioning block 1122; wherein the second positioning block 1122 and the clamping mechanism 113 are distributed along the extension direction of the first positioning block 1121. The clamping mechanism 113 includes a first driving module 1131 and a pressing block 1132. The first driving module 1131 is preferably installed on the seat body 112. The pressing block 1132 is connected to the driving end of the first driving module 1131, so that the first driving module 1131 can drive the pressing block 1132 to move toward or away from the second positioning block 1122 along the extension direction of the first positioning block 1121; the first positioning block 1121, the second positioning block 1122 and the pressing block 1132 can enclose the above-mentioned fixed position 111. Through the design of the positioning seat 11, the placement and removal of the fixture 2 can be made more convenient, and at the same time, the stability of the fixture 2 during the detection process can be effectively guaranteed, thereby preventing the air nozzle 321 from being accurately docked with the corresponding hyaluronic acid needle 10 due to the misalignment of the fixture 2, thereby ensuring the accuracy and reliability of the hyaluronic acid needle air tightness detection equipment 100.

[0033] Combination Figure 4 The fixture 2 is provided with a plurality of accommodating positions 21, and the plurality of accommodating positions 21 are preferably distributed along the extension direction of the first positioning block 1121; wherein, the fixture 2 is provided with a sealing member 22 at the accommodating position 21, so that when the hyaluronic acid needle 10 is clamped and installed in the accommodating position 21, the needle tube of the hyaluronic acid needle 10 extends into the accommodating position 21, and the needle seat 101 of the hyaluronic acid needle 10 is connected with the sealing member 22, so that a closed space is formed between the accommodating position 21 and the needle seat 101, so that when the hyaluronic acid needle 10 is tested for air tightness, the gas discharged from the needle tube can be prevented from passing through the gap between the fixture 2 and the sealing member 22, thereby ensuring the reliability of the clamp 2 in maintaining the pressure of the hyaluronic acid needle 10. Preferably, the sealing member 22 is a sealing pad, and the sealing pad is made of silicone; of course, as another optional solution, the sealing pad can also be made of other materials with the same or similar functions and effects, such as nitrile rubber or fluororubber. By designing the seal 22 , the seal 22 can cooperate with the needle seat 101 to ensure the sealing reliability during the airtightness detection of the hyaluronic acid needle 10 , so as to ensure the reliability and accuracy of the detection.

[0034] The detection unit 3 includes a driving mechanism 31, a moving mechanism 32 and a pressure measuring mechanism 33. The driving mechanism 31 is installed on the frame 1, and the driving mechanism 31 can drive the moving mechanism 32 to move toward or away from the fixture 2. Preferably, the driving mechanism 31 includes a first guide column 311, a mounting plate 312 and a second driving module 313; wherein the number of the first guide columns 311 is more than two, and preferably, the number of the first guide columns 311 is four, and the first guide columns 311 are parallel to the height direction of the frame 1. The moving mechanism 32 is slidably connected to the first guide column 311, and the moving mechanism 32 is located above the fixture 2. The mounting plate 312 is installed on the top of the first guide column 311, and the second driving module 313 is installed on the mounting plate 312. The second driving module 313 is used to drive the moving mechanism 32 to slide along the first guide column 311 toward or away from the fixture 2. Through the design of the driving mechanism 31, the second driving module 313 can reliably and smoothly drive the moving mechanism 32 to move toward the hyaluronic acid needle head 10 on the clamp 2, so that the air nozzle 321 on the moving mechanism 32 is accurately docked with the flow channel 1012 on the connecting part 1011 of the hyaluronic acid needle.

[0035] Combination Figure 5 The moving mechanism 32 further includes a plurality of air nozzles 321, a fixed plate 322 and a movable plate 323; wherein the plurality of air nozzles 321 correspond one-to-one to the plurality of receiving positions 21 on the fixture 2, so that the air nozzles 321 can be precisely docked with the connecting portion 1011 of the hyaluronic acid needle 10 in the receiving position 21. The fixed plate 322 is slidably connected to the first guide column 311, and the fixed plate 322 is connected to the driving end of the second driving module 313. Preferably, a first linear bearing is provided between the fixed plate 322 and the first guide column 311, so that the second driving module 313 can more smoothly drive the fixed plate 322 to slide relative to the fixture 2 along the first guide column 311.

[0036] The movable plate 323 is provided with a second guide post 3231, and the second guide post 3231 is slidably connected to the fixed plate 322. Preferably, a second linear bearing is provided between the second guide post 3231 and the fixed plate 322, so that the movable plate 323 can slide more smoothly relative to the fixed plate 322 through the second guide post 3231 and the second linear bearing; wherein, a shock absorbing element 324 is provided between the movable plate 323 and the fixed plate 322, and the shock absorbing element 324 can preferably be a compression spring. Furthermore, the air nozzle 321 is slidingly connected to the movable plate 323 and the fixed plate 322 respectively, and an elastic member 325 is provided between the air nozzle 321 and the fixed plate 322, and the elastic member 325 is used to force the air nozzle 321 to move toward the clamp 2 in the axial direction parallel to the second guide column 3231, and the elastic member 325 can preferably be a compression spring; wherein, an abutment protrusion 3211 is provided on the air nozzle 321, and the elastic member 325 is sleeved on the air nozzle 321, and the elastic member 325 abuts between the abutment protrusion 3211 and the fixed plate 322.

[0037] Through the design of the moving mechanism 32, when the second driving module 313 drives the moving mechanism 32 to move toward the fixture 2, when the air nozzle 321 contacts the hyaluronic acid needle head 10 on the fixture 2, the movable plate 323 of the moving mechanism 32 can slide relative to the fixed plate 322 through the second guide column 3231 and the shock-absorbing element 324, and the air nozzle 321 can slide relative to the movable plate 323 and the fixed plate 322 through the elastic member 325, thereby playing a certain shock-absorbing and buffering role to prevent the hyaluronic acid needle head 10 and / or the air nozzle 321 from being damaged; at the same time, the air nozzle 321 can also always press against the connecting part 1011 of the hyaluronic acid needle head 10 under the action of the elastic member 325 to ensure the air tightness between the air nozzle 321 and the connecting part 1011, thereby ensuring the accuracy and reliability of the detection.

[0038] The pressure measuring mechanism 33 includes an air source and a plurality of pressure gauges 331, wherein the air source is connected to a plurality of air nozzles 321; wherein a solenoid valve is provided between the air source and each air nozzle 321, and the solenoid valve and the air source are electrically connected to the control unit 4 respectively, so that the control unit 4 can control the opening or closing of the solenoid valve, thereby causing the air source to supply air to a corresponding air nozzle 321 or stop supplying air to the air nozzle 321. A pressure gauge 331 is connected between a corresponding air nozzle 321 and the air source, and the pressure gauge 331 allows the user to intuitively understand the air pressure value in the hyaluronic acid needle 10 during the pressure-maintaining process, thereby facilitating the customer to determine whether the corresponding hyaluronic acid needle 10 has a leakage problem.

[0039] Preferably, the pressure gauge 331 is a digital pressure gauge 331, so that the user can more intuitively obtain the current pressure value inside the corresponding water light needle head 10. Further, the control unit 4 includes a display screen 41, and the display screen 41 displays multiple display areas; the pressure gauge 331 is electrically connected to the control unit 4, and the multiple display areas correspond to the multiple pressure gauges 331 one by one, so that the display area can display the relevant detection data of a corresponding pressure gauge 331. For example, the current pressure value of a corresponding pressure gauge 331 is displayed in the display area; for another example, the current pressure value detected by the pressure gauge 331 is displayed in a specific color in the corresponding display area, so as to intuitively provide the user with the current airtightness status of each water light needle head 10.

[0040] Preferably, the first drive module 1131 of the positioning seat 11 is a first linear cylinder, which is connected to the air source; the second drive module 313 of the drive mechanism 31 is a second linear cylinder, which is connected to the air source. This design enables the first drive module 1131, the second drive module 313 and the pressure measuring mechanism 33 to use the same air source, thereby reducing costs. Of course, as other optional solutions, the first drive module 1131 can also be an electric cylinder, a linear module, etc.; similarly, the second drive module 313 can also be an electric cylinder, a linear module, etc.

[0041] The alarm 5 is mounted on the frame 1 or the control unit 4, and the alarm 5 is electrically connected to the control unit 4, so that the control unit 4 can control the alarm 5 to emit a light and / or sound alarm. The setting of the alarm 5 enables the user to promptly follow up when the water light needle needle 10 fails the test.

[0042] The grating unit 6 includes a transmitter 61 and a receiver 62, and both the transmitter 61 and the receiver 62 are electrically connected to the control unit 4. Along the placement direction of the clamp 2, the grating unit 6 is located at the upstream end of the fixed position 111. In addition, in the first direction, the fixed position 111 is located between the transmitter 61 and the receiver 62; wherein the first direction is perpendicular to the placement direction. The setting of the grating unit 6 can ensure the safety of the user when taking and placing the clamp 2, so as to prevent the user's hands from being crushed during the process of taking and placing the clamp 2.

[0043] The first button 71 and the second button 72 are installed on the frame 1 and electrically connected to the control unit 4, and the second button 72 is installed on the frame 1 and electrically connected to the control unit 4. In the first direction, the grating unit 6 is located between the first button 71 and the second button 72; this design can further improve the safety of the user when using the water light needle needle air tightness detection device 100. However, it should be noted that in other embodiments, only one button can be set to control the opening and closing of the detection unit 3; and setting two buttons for linkage control is conducive to further improving the safety of the water light needle needle air tightness detection device 100 when in use.

[0044] In addition, in this embodiment, there are two clamps 2, and six receiving positions 21 are provided on the two clamps 2. When the air tightness detection device 100 for the water light needle is used for detection, the two clamps 2 are simultaneously installed in the fixed position 111, and the detection unit 3 is provided with a gas nozzle 321 and a pressure gauge 331 matching the two clamps 2. Of course, in other embodiments, the number of each clamp 2 can also be one to six, or more than seven; the number of clamps 2 can also be one or more than three; such a design can improve the detection efficiency of the air tightness detection device 100 for the water light needle.

[0045] The following is a brief description of the detection process of the water light needle needle air tightness detection device 100:

[0046] First, a hyaluronic acid needle head 10 is installed in each accommodating position 21 of the clamp 2; after the hyaluronic acid needle head 10 is inserted into the accommodating position 21, its needle seat 101 abuts against the sealing member 22 at the accommodating position 21 to seal the connecting gap between the clamp 2 and the hyaluronic acid needle head 10.

[0047] Next, the fixture 2 is placed on the positioning seat 11 , and the fixture 2 is made to abut against the first positioning block 1121 and the second positioning block 1122 .

[0048] Next, the first button 71 and the second button 72 are pressed simultaneously, so that the first driving module 1131 of the clamping mechanism 113 drives the pressing block 1132 to move toward the second positioning block 1122 until the pressing block 1132 abuts against the clamp 2 .

[0049] Next, the second driving module 313 of the control driving mechanism 31 drives the moving mechanism 32 to move toward the fixture 2 until the air nozzles 321 on the moving mechanism 32 are docked with the connecting parts 1011 of the hyaluronic acid needle heads 10 on the fixture 2; then, the control pressure measuring mechanism 33 inflates the flow channel 1012 of the connecting part 1011 of the hyaluronic acid needle heads 10 through the air nozzles 321 for a first preset time (preferably 2 seconds to 5 seconds; preferably, the first preset time is 2 seconds), so that the air pressure in the hyaluronic acid needle heads 10 rises to a preset pressure value (preferably 0.4Mpa to 0.6Mpa; preferably, the preset pressure value is 0.45Mpa).

[0050] After the air pressure in the hyaluronic acid needle 10 reaches the preset pressure value, the pressure measuring mechanism 33 is controlled to stop inflating the hyaluronic acid needle 10. At the same time, the control unit 4 obtains the first detection data of each pressure gauge 331, and the controller starts timing for the second preset time (preferably 8 to 16 seconds, preferably, the second preset time is 10 seconds).

[0051] When the second preset time is reached, the control unit 4 obtains the second detection data of each pressure gauge 331, and calculates whether the difference between the first pressure value (i.e., the first detection data) and the second pressure value (i.e., the second detection data) of the same pressure gauge 331 is greater than a preset threshold (preferably 180 Pa to 220 Pa, preferably, the preset threshold is 200 Pa).

[0052] When the first pressure value minus the second pressure value of the same pressure gauge 331 is greater than the preset threshold, the corresponding display area of ​​the display screen 41 of the control unit 4 is displayed in a specific color (such as red); of course, an indicator light corresponding to each receiving position 21 can also be set on the positioning seat 11 for display. At the same time, the control unit 4 can control the alarm 5 to emit a light and / or sound alarm to remind the user to remove the hyaluronic acid needle 10 that does not meet the requirements.

[0053] After completing the air tightness test on the hyaluronic acid needles 10 , the hyaluronic acid needle air tightness test device 100 can be reset by controlling the first button 71 and / or the second button 72 to prepare for the air tightness test on the next batch of hyaluronic acid needles 10 .

[0054] From the above, it can be seen that through the design of the hyaluronic acid needle tip air tightness detection device 100, it is possible to perform air tightness detection on multiple hyaluronic acid needle tips 10 at the same time, thereby improving the detection efficiency, and at the same time, it is possible to more accurately identify whether the hyaluronic acid needle tip 10 being tested has an air leakage problem, thereby improving the detection accuracy.

[0055] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for detecting the air tightness of a water light needle, characterized in that: include: A frame, the frame comprising a positioning seat, the positioning seat having a fixed position; A clamp, wherein a plurality of receiving positions are provided on the clamp, a sealing member is provided at the receiving positions, and the clamp can be installed in the fixing position; A detection unit, the detection unit comprising a driving mechanism, a moving mechanism and a pressure measuring mechanism, the driving mechanism being mounted on the frame, the driving mechanism being capable of driving the moving mechanism to move toward or away from the fixture, the moving mechanism comprising a plurality of air nozzles, the plurality of air nozzles corresponding one-to-one to the plurality of accommodating positions, the pressure measuring mechanism comprising an air source and a plurality of pressure gauges, the air source being respectively connected to the plurality of air nozzles, the plurality of pressure gauges corresponding one-to-one to the plurality of air nozzles, and one pressure gauge being connected between a corresponding air nozzle and the air source; A control unit is electrically connected to the driving mechanism and the gas source respectively.

2. The air tightness detection device for the water light needle tip according to claim 1 is characterized in that: The positioning seat comprises: A seat body, wherein a first positioning block and a second positioning block are provided on the seat body; A clamping mechanism, wherein the clamping mechanism and the second positioning block are distributed along the extension direction of the first positioning block, and the clamping mechanism includes a first driving module and a pressing block, wherein the first driving module is installed on the base body, and the first driving module can drive the pressing block to move along the extension direction toward or away from the second positioning block, and the first positioning block, the second positioning block and the pressing block form the fixed position.

3. The air tightness detection device for the water light needle tip according to claim 2 is characterized in that: The driving mechanism comprises: Two or more first guide posts, wherein the first guide posts are mounted on the frame, the first guide posts are parallel to the height direction of the frame, the moving mechanism is slidably connected to the first guide posts, and the moving mechanism is located above the clamp; A mounting plate, the mounting plate being mounted on the top of the first guide column; A second driving module is mounted on the mounting plate, and the second driving module can drive the moving mechanism to slide along the first guide column toward or away from the clamp.

4. The air tightness detection device for the water light needle tip according to claim 3 is characterized in that: The moving mechanism also includes: A fixing plate, wherein the fixing plate is slidably connected to the first guide post, and the fixing plate is connected to the driving end of the second driving module; A movable plate, wherein a second guide column is arranged on the movable plate, the second guide column is slidably connected to the fixed plate, a shock absorbing element is arranged between the movable plate and the fixed plate, the air nozzle is slidably connected to the movable plate and the fixed plate respectively, an elastic member is arranged between the air nozzle and the fixed plate, and the elastic member forces the air nozzle to move toward the clamp in an axial direction parallel to the second guide column.

5. The air tightness detection device for the water light needle tip according to claim 3 is characterized in that: The first driving module is a first linear cylinder, and the first linear cylinder is connected to the air source; The second driving module is a second linear cylinder, and the second linear cylinder is connected to the air source.

6. The air tightness detection device for the water light needle tip according to claim 1 is characterized in that: The pressure gauge is a digital pressure gauge, and the pressure gauge is electrically connected to the control unit; The control unit includes a display screen having a plurality of display areas, and the plurality of display areas correspond one-to-one to the plurality of pressure gauges.

7. The air tightness detection device for the water light needle tip according to claim 6 is characterized in that: The water light needle needle air tightness detection equipment also includes an alarm, which is electrically connected to the control unit, and the control unit can control the alarm to emit light and / or sound alarms.

8. The air tightness detection device for the water light needle tip according to claim 1 is characterized in that: The sealing element is a sealing gasket, and the sealing gasket is made of silicone, nitrile rubber or fluororubber.

9. The air tightness detection device for the hyaluronic acid needle according to any one of claims 1 to 8, characterized in that: The water light needle tip air tightness detection device also includes a grating unit, and the grating unit includes a transmitter and a receiver; Along the insertion direction of the fixture, the grating unit is located at the upstream end of the fixed position; In a first direction, the fixing position is located between the transmitter and the receiver, the first direction is perpendicular to the insertion direction, and both the transmitter and the receiver are electrically connected to the control unit.

10. The air tightness detection device for the water light needle tip according to claim 9 is characterized in that: The water light needle needle air tightness detection equipment also includes: a first button, the first button being mounted on the frame and electrically connected to the control unit; A second button is installed on the frame and is electrically connected to the control unit. In the first direction, the grating unit is located between the first button and the second button.

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