CN213507428U - Drive unit of sinker device of flat knitting machine - Google Patents
Drive unit of sinker device of flat knitting machine Download PDFInfo
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- CN213507428U CN213507428U CN202022525520.8U CN202022525520U CN213507428U CN 213507428 U CN213507428 U CN 213507428U CN 202022525520 U CN202022525520 U CN 202022525520U CN 213507428 U CN213507428 U CN 213507428U
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Abstract
The application discloses a driving unit of a sinker device of a flat knitting machine, which relates to the technical field of flat knitting machines and comprises a driving motor, a transmission gear and a reciprocating guide piece; the driving motor comprises a machine body and an output shaft, the machine body is used for being mounted on a mounting plate, and the output shaft is arranged on the machine body; the transmission gear is an incomplete gear and comprises a gear body coaxially arranged on the output shaft and a plurality of gear teeth fixed on the peripheral wall of the gear body; the reciprocating guide piece is used for being arranged on the sinker sliding strip, the sinker sliding strip slides relative to the mounting plate, and the sliding direction of the sinker sliding strip is vertical to the axial direction of the output shaft of the driving motor; the reciprocating guide piece comprises a first rack, a second rack and two connecting strips; the gear teeth of the transmission gear are meshed with the tooth part of the second rack while being disengaged from the tooth part of the first rack. Through setting up drive gear and reciprocating guide spare for driving motor's operation control is more convenient.
Description
Technical Field
The application relates to the technical field of flat knitting machines, in particular to a driving unit of a sinker device of a flat knitting machine.
Background
The patent No. 201120130454.2, a chinese patent of invention, discloses a sinker device for a flat knitting machine, which drives a transmission gear to rotate through a sinker motor, drives a rack to move through the transmission gear to drive a slide bar to slide left and right, thereby driving a sinker slider to move up and down, and controls a sinker to generate a swing stroke by using a guide groove on the slider.
Aiming at the related technologies, the inventor finds that when the transmission system realizes the left-right movement of the slide bar through the transmission mode of the transmission gear and the rack, the motor needs to be switched between the forward rotation and the reverse rotation continuously, which is troublesome and needs to be improved.
SUMMERY OF THE UTILITY MODEL
In order to improve the condition that the motor needs to be constantly switched in forward rotation and reverse rotation, the application provides a driving unit of a sinker device of a flat knitting machine.
The application provides a drive unit of sinker device of flat knitting machine adopts following technical scheme:
a driving unit of a sinker device of a flat knitting machine comprises a driving motor, a transmission gear and a reciprocating guide piece;
the driving motor comprises a machine body and an output shaft, the machine body is used for being mounted on a mounting plate, the output shaft is arranged on the machine body, and the mounting plate is fixed on a frame of the flat knitting machine;
the transmission gear is an incomplete gear and comprises a gear body coaxially arranged on the output shaft and a plurality of gear teeth fixed on the peripheral wall of the gear body;
the reciprocating guide piece is used for being arranged on a sinker sliding strip, the sinker sliding strip slides relative to the mounting plate, and the sliding direction of the sinker sliding strip is vertical to the axial direction of the output shaft of the driving motor; the reciprocating guide piece comprises a first rack, a second rack and two connecting strips; the first rack is arranged on the sinker sliding strip, and the length direction of the first rack is parallel to the sliding direction of the sinker sliding strip; the second rack is positioned on one side of the first rack far away from the sinker sliding strip and is arranged in parallel with the first rack; the connecting bar is connected between the first rack and the second rack, and the tooth parts of the first rack and the second rack are oppositely arranged;
the gear teeth of the transmission gear are meshed with the tooth part of the second rack while being disengaged from the tooth part of the first rack.
Through the technical scheme, when the drive unit needs to drive the sinker slider of the sinker device to move, drive the transmission gear to rotate through the drive motor, in the rotation process of the transmission gear, the gear teeth of the transmission gear are firstly meshed with the first rack to enable the sinker slider to slide towards one direction, then after all the gear teeth of the transmission gear are disengaged from the first rack, the gear teeth of the transmission gear start to be meshed with the second rack, at the moment, the rotation of the transmission gear can drive the second rack to move, so that the sinker slider moves towards the opposite direction, when all the gear teeth are disengaged from the second rack, the gear teeth start to be meshed with the first rack again, so reciprocating, so that the drive motor only operates towards one direction, the reciprocating movement of the sinker slider can be realized, and the operation control of the drive motor is more convenient.
Optionally, a connecting portion is coaxially fixed at one end of the output shaft, which is far away from the machine body, a limiting strip is fixed on the outer side wall of the connecting portion, a through hole for the connecting portion to slide is coaxially formed in the transmission gear, and a limiting groove for the limiting strip to be embedded and positioned is formed in the inner wall of the through hole; the connecting part is also in threaded connection with a locking nut used for pressing the transmission gear on the output shaft.
Through above-mentioned technical scheme, when needs carry out maintenance to drive gear, can pull out drive gear from connecting portion after unscrewing locking bolt to make drive gear's maintenance more convenient.
Optionally, one end of the connecting strip is hinged to the first rack, and the other end of the connecting strip is hinged to the second rack; four hinge axes of the two connecting strips are arranged in four corners of a parallelogram; and the second rack is correspondingly provided with a locking piece for fixing the connecting bar and the second rack.
Through above-mentioned technical scheme, it is adjustable to make the distance between first rack and the second rack realize through the connecting strip is articulated, fixes through the locking piece after adjusting the distance that needs. Can dismantle through drive gear and make drive gear can change, can adjust the distance between first rack and the second rack according to actual conditions in addition for reciprocating guide and drive gear's suitability is better.
Optionally, the locking piece is a locking bolt, and the axis of the locking bolt coincides with the hinge axis of the corresponding connecting strip and the second rack.
Through above-mentioned technical scheme, twist through locking bolt and fasten the connecting strip with the second rack is twisted, and when locking bolt unscrewed, locking bolt acted as the articulated shaft in order to support the upset for the regulation and the fixed more convenient of connecting strip and second rack.
Optionally, the second rack is provided with a positioning inner gear ring penetrating through the connecting bar; the axis of the positioning inner gear ring is superposed with the hinge axis of the corresponding connecting strip and the second rack;
the locking piece comprises a positioning gear, an adjusting rod, a limiting part and a return spring;
the positioning gear is meshed with the positioning inner gear ring of the second rack and the positioning inner gear ring of the corresponding connecting strip simultaneously to realize positioning;
the adjusting rod is fixed at one axial end of the positioning gear; the adjusting rod is a round rod, and the diameter of the adjusting rod is smaller than the diameter of the addendum circle of the positioning inner gear ring;
the limiting part is fixed at one end of the positioning gear, which is far away from the adjusting rod, so as to limit the positioning gear to penetrate through the positioning inner gear ring;
the reset spring is sleeved on the adjusting rod, and the limit part tends to move towards the direction of the adjusting rod due to the reset spring;
after the adjusting rod compresses the return spring and moves towards the direction of the limiting part, the positioning gear is not meshed with the positioning inner gear ring of the second rack and the positioning inner gear ring of the corresponding connecting strip simultaneously.
Through the technical scheme, when the distance between the first rack and the second rack needs to be adjusted, the adjusting rod is pressed to enable the adjusting rod to move towards the direction of the limiting part by overcoming the elasticity of the reset spring, so that the positioning gear is separated from the positioning inner gear ring, or the positioning gear is not meshed with the positioning inner gear ring of the second rack and the positioning inner gear ring of the corresponding connecting strip simultaneously, the adjusting rod serves as a hinged shaft to support the connecting strip and the second rack to turn over, the positioning gear is inserted into the positioning inner gear ring of the second rack and the positioning inner gear ring of the corresponding connecting strip simultaneously to realize locking after the adjusting is in place, the reset spring can be further compressed, and the whole locking is enabled to be more stable. Through setting up positioning gear, regulation pole, spacing portion and reset spring for the distance between first rack and the second rack is adjusted more conveniently.
Optionally, two ends of the second rack along the length direction are provided with hinge grooves for the connection bar to hinge.
Through above-mentioned technical scheme, open and establish the hinge groove, through the axial skew of hinge groove restriction connecting strip along its hinge axis for holistic regulation is more stable.
Optionally, a plurality of scales are arranged at two ends of the second rack along the length direction, and the plurality of scales are circumferentially distributed along the hinge axis of the corresponding connecting bar and the second rack; and the connecting strip is provided with an indicating line used for aligning with the scale.
Through above-mentioned technical scheme, can show the contained angle state of connecting strip and second rack through scale and pilot line for holistic regulation is more convenient.
Optionally, each connecting strip is hinged with a reinforcing rod, and one end of each reinforcing rod, which is far away from the connecting strip, is used for being fixed to the sinker slider.
Through above-mentioned technical scheme, set up the stiffener, the stiffener can with connecting strip and give birth to the gram draw runner and realize the triangular supports for reciprocating guide's structure is more stable.
In summary, the present application includes at least one of the following beneficial technical effects:
(1) the driving gear and the reciprocating guide piece are arranged, so that the operation control of the driving motor is more convenient;
(2) by arranging the locking piece, the reciprocating guide piece and the transmission gear have better adaptability;
(3) through setting up positioning gear, regulation pole, spacing portion and reset spring for the distance between first rack and the second rack is adjusted more conveniently.
Drawings
FIG. 1 is a general schematic view of a first embodiment;
FIG. 2 is a schematic partial exploded view of the first embodiment;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is an overall schematic view of the second embodiment.
Reference numerals: 1. mounting a plate; 2. a sinker slider; 3. a drive motor; 31. a body; 32. an output shaft; 4. a transmission gear; 41. a wheel body; 42. gear teeth; 5. a reciprocating guide; 51. a first rack; 52. a second rack; 53. a connecting strip; 6. a connecting portion; 7. a limiting strip; 8. a through hole; 9. a limiting groove; 10. locking the nut; 11. a hinge slot; 12. a locking member; 121. positioning a gear; 122. adjusting a rod; 123. a limiting part; 124. a return spring; 13. positioning the inner gear ring; 14. a positioning ring; 15. a reinforcing bar; 16. a fixing plate; 17. a threaded hole; 18. calibration; 19. lines are indicated.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
During the actual use, flat knitting machine includes the frame, is fixed with mounting panel 1 in wherein the frame, still slides and is connected with sinker draw runner 2 in the frame.
The embodiment of the application discloses a driving unit of a sinker device of a flat knitting machine.
The first embodiment is as follows:
as shown in fig. 1, includes a driving motor 3, a driving gear 4, and a reciprocating guide 5.
As shown in fig. 2, the drive motor 3 includes a body 31 and an output shaft 32. The body 31 is fixed to the mounting plate 1, the output shaft 32 is rotatably connected to the body 31, and the direction of the rotation axis of the output shaft 32 is perpendicular to the sliding direction of the sinker slider 2. The coaxial connecting portion 6 that is fixed with of one end that organism 31 was kept away from to output shaft 32, the diameter of connecting portion 6 is less than the diameter of output shaft 32, and the lateral wall of connecting portion 6 is fixed with spacing 7, and spacing 7 is located the one end that connecting portion 6 is close to output shaft 32, and the one end that output shaft 32 was kept away from to connecting portion 6 is equipped with the external screw thread.
The transmission gear 4 is an incomplete gear, and the transmission gear 4 includes a wheel body 41 coaxially disposed on the output shaft 32, and a plurality of gear teeth 42 fixed on the outer peripheral wall of the wheel body 41. Wherein, the wheel body 41 is coaxially provided with a through hole 8, and the through hole 8 is mainly used for the connecting part 6 to slide and pass through. The inner wall of the through hole 8 is further provided with a limiting groove 9, the limiting groove 9 is used for observing the wheel body 41 along the axial direction of the wheel body 41, and the size of the limiting groove 9 is matched with the limiting strip 7 to be mainly used for embedding the limiting strip 7 of the connecting part 6 so as to realize positioning.
When the transmission gear 4 is installed, the through hole 8 is aligned with the connecting portion 6 and inserted, so that the limiting strip 7 of the connecting portion 6 is correspondingly embedded into the limiting groove 9, then the locking nut 10 is screwed into the external thread of the connecting portion 6, and the locking nut 10 is screwed to tightly press the gear body 41 on the end portion, close to the connecting portion 6, of the output shaft 32 so as to fix the transmission gear 4.
As shown in fig. 1 and 2, the reciprocating guide 5 is attached to the sinker slider 2, and the reciprocating guide 5 includes a first rack 51, a second rack 52, and two connecting bars 53. The first rack 51 is fixed on the sinker slider 2, the length direction of the first rack 51 is parallel to the sliding direction of the sinker slider 2, and the tooth parts of the first rack 51 are uniformly distributed along the length direction. The second rack 52 is located on a side of the first rack 51 away from the sinker slider 2 and is parallel to the first rack 51, a tooth portion of the second rack 52 is the same as that of the first rack 51, and the tooth portion of the first rack 51 and the tooth portion of the second rack 52 are oppositely arranged.
The two connecting bars 53 are connected between the first rack 51 and the second rack 52, one end of each connecting bar 53 is hinged with the first rack 51, the other end of each connecting bar 53 is hinged with the second rack 52, and the hinge axes are parallel to the axis of the output shaft 32. The four hinge axes of the two connecting bars 53 are arranged in four corners of a parallelogram, and in the embodiment, the first rack 51, the second rack 52 and the two connecting bars 53 are spliced to form one parallelogram. The second rack 52 has hinge grooves 11 at two ends along the length direction, and the width of the hinge grooves 11 along the axial direction of the output shaft 32 corresponds to the width of the connecting bar 53, so that the end of the connecting bar 53 is embedded in the hinge grooves 11 when the connecting bar 53 is connected with the second rack 52.
As shown in fig. 2 and 3, the second rack 52 is provided with two locking pieces 12, the two locking pieces 12 are arranged in one-to-one correspondence with the two connecting bars 53, and the locking pieces 12 are used for fixing the connecting bars 53 and the second rack 52. The locking member 12 includes a positioning gear 121, an adjustment lever 122, a stopper 123, and a return spring 124.
The second rack 52 is further provided with a positioning inner gear ring 13, the axis of the positioning inner gear ring 13 coincides with the hinge axis of the corresponding connecting strip 53 and the second rack 52, and the positioning inner gear ring penetrates through the corresponding connecting strip 53.
The positioning gear 121 is embedded in the positioning ring gear 13 and can slide along the axial direction of the positioning gear 121. The adjusting rod 122 is fixed at one axial end of the positioning gear 121, the adjusting rod 122 is a round rod, the diameter of the adjusting rod 122 is smaller than the diameter of the addendum circle of the positioning inner gear ring 13, and the positioning ring 14 is fixed at one end of the adjusting rod 122 far away from the positioning gear 121. The limiting part 123 is fixed at one end of the positioning gear 121 far away from the adjusting rod 122. The limiting part 123 is a limiting ring, and the diameter of the limiting part 123 is larger than the diameter of the addendum circle of the positioning inner gear ring 13. The return spring 124 is sleeved on the adjustment rod 122, one end of the return spring 124 abuts against the positioning ring 14 and the other end abuts against the second rack 52, and the limit portion 123 tends to move toward the adjustment rod 122 due to the return spring 124.
When the distance between the first rack 51 and the second rack 52 needs to be adjusted, the adjusting rod 122 is moved toward the limiting part 123 against the elastic force of the return spring 124 by pressing the adjusting rod 122, so that the positioning gear 121 is disengaged from the positioning ring gear 13, or the positioning gear 121 is not engaged with the positioning ring gear 13 of the second rack 52 and the positioning ring gear 13 of the corresponding connecting bar 53 simultaneously. At this time, the adjusting lever 122 serves as a hinge shaft to support the connection bar 53 and the second rack 52 to be turned, and after the adjustment is completed, the positioning gear 121 is simultaneously inserted into the positioning ring gear 13 of the second rack 52 and the positioning ring gear 13 of the corresponding connection bar 53 to realize the limiting, and at this time, the second rack 52 and the connection bar 53 cannot be turned. The elastic force of the return spring 124 can make the limiting part 123 tightly abut against the second rack 52, so that the positioning gear 121 is not easy to move in the using process, and the whole operation is more stable.
As shown in fig. 1, in order to reinforce the structural strength of the reciprocating guide 5, a reinforcing rod 15 is hinged to each connecting bar 53, a fixing plate 16 is hinged to one end of each reinforcing rod 15 far away from the connecting bar 53, and the hinge axis of the fixing plate 16 and the reinforcing rod 15 is parallel to the hinge axis of the reinforcing rod 15 and the connecting bar 53. A plurality of threaded holes 17 are formed in the sinker slider 2, and the fixing plate 16 is attached to the upper end face of the sinker slider 2 and fixed with the sinker slider 2 after penetrating through bolts.
Referring to fig. 3, a plurality of scales 18 are further disposed at two ends of the second rack 52 along the length direction, the scales 18 of the brightness of the second rack 52 are symmetrically disposed, and the plurality of scales 18 are circumferentially distributed along the hinge axis of the corresponding connecting bar 53 and the second rack 52. The connecting strip 53 is correspondingly provided with an indicating line 19, and the indicating line 19 is used for aligning with the scale 18. When the included angle between the connecting strip 53 and the second rack 52 is adjusted, the indication can be performed through the scales 18 and the indication lines 19, so that the two connecting strips 53 can be kept parallel in the adjusting process conveniently, and the adjustment is more convenient.
The working principle of the embodiment is as follows:
when the driving unit needs to drive the sinker slide bar 2 of the sinker device to move, the driving motor 3 drives the transmission gear 4 to rotate, during the rotation of the transmission gear 4, the gear teeth 42 of the transmission gear 4 are firstly meshed with the first rack 51, so that the sinker slider 2 slides towards one direction, and then when each gear tooth 42 of the transmission gear 4 is disengaged from the first rack 51, the gear teeth 42 thereof are engaged with the second rack 52, and the rotation of the transmission gear 4 drives the second rack 52 to move, thereby causing the sinker slider 2 to move in the opposite direction, while each of the teeth 42 is disengaged from the second rack 52, the gear teeth 42 start to engage with the first rack 51 again, and the sliding direction of the sinker slider 2 is reversed again, and the process is repeated, so that the driving motor 3 is operated only in one direction to make the sinker slider 2 reciprocate.
Example two:
the difference from the first embodiment is the structure of the locking member 12. As shown in fig. 4, the locking member 12 is a locking bolt, the axis of the locking bolt coincides with the hinge axis of the corresponding connecting bar 53 and the second rack 52, and the locking bolt passes through the corresponding connecting bar 53 and the second rack 52 at the same time and is fastened by a nut. When the nut of the lockbolt is loosened, the lockbolt acts as a hinge shaft to support the turnover.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a knitting horizontal machine sinker device's drive unit which characterized in that: comprises a driving motor (3), a transmission gear (4) and a reciprocating guide piece (5);
the driving motor (3) comprises a machine body (31) arranged on the mounting plate (1) and an output shaft (32) arranged on the machine body (31), and the mounting plate (1) is fixed on a frame of the flat knitting machine;
the transmission gear (4) is an incomplete gear, and the transmission gear (4) comprises a gear body (41) coaxially arranged on the output shaft (32) and a plurality of gear teeth (42) fixed on the peripheral wall of the gear body (41);
the reciprocating guide piece (5) is used for being mounted on the sinker sliding strip (2), the sinker sliding strip (2) slides relative to the mounting plate (1), and the sliding direction of the sinker sliding strip is perpendicular to the axial direction of the output shaft (32) of the driving motor (3); the reciprocating guide (5) comprises a first rack (51), a second rack (52) and two connecting strips (53); the first rack (51) is arranged on the sinker sliding strip (2) and the length direction of the first rack is parallel to the sliding direction of the sinker sliding strip (2); the second rack (52) is positioned on one side of the first rack (51) far away from the sinker slider (2) and is arranged in parallel with the first rack (51); the connecting strip (53) is connected between the first rack (51) and the second rack (52), and the tooth parts of the first rack (51) and the second rack (52) are oppositely arranged;
the gear teeth (42) of the transmission gear (4) are arranged to be disengaged from the tooth part of the first rack (51) and meshed with the tooth part of the second rack (52).
2. The drive unit of the sinker device for a flat knitting machine according to claim 1, wherein: a connecting part (6) is coaxially fixed at one end of the output shaft (32) far away from the machine body (31), a limiting strip (7) is fixed on the outer side wall of the connecting part (6), a through hole (8) for the connecting part (6) to slide is coaxially formed in the transmission gear (4), and a limiting groove (9) for the limiting strip (7) to be embedded and positioned is formed in the inner wall of the through hole (8); the connecting part (6) is also in threaded connection with a lock nut (10) used for pressing the transmission gear (4) on the output shaft (32).
3. The drive unit of the sinker device for a flat knitting machine according to claim 2, wherein: one end of the connecting strip (53) is hinged with the first rack (51) and the other end of the connecting strip is hinged with the second rack (52); four hinge axes of the two connecting strips (53) are arranged in four corners of a parallelogram; the second rack (52) is correspondingly provided with a locking piece (12) used for fixing the connecting strip (53) and the second rack (52).
4. The drive unit of the sinker device for a flat knitting machine according to claim 3, wherein: the locking piece (12) is a locking bolt, and the axis of the locking bolt coincides with the hinge axis of the corresponding connecting strip (53) and the second rack (52).
5. The drive unit of the sinker device for a flat knitting machine according to claim 3, wherein: the second rack (52) is provided with a positioning inner gear ring (13) which penetrates through the connecting strip (53); the axis of the positioning inner gear ring (13) is superposed with the hinge axis of the corresponding connecting strip (53) and the second rack (52);
the locking piece (12) comprises a positioning gear (121), an adjusting rod (122), a limiting part (123) and a return spring (124);
the positioning gear (121) is simultaneously meshed with the positioning inner gear ring (13) of the second rack (52) and the positioning inner gear ring (13) of the corresponding connecting strip (53) to realize positioning;
the adjusting rod (122) is fixed at one axial end of the positioning gear (121); the adjusting rod (122) is a round rod, and the diameter of the adjusting rod is smaller than the diameter of the addendum circle of the positioning inner gear ring (13);
the limiting part (123) is fixed at one end, far away from the adjusting rod (122), of the positioning gear (121) to limit the positioning gear (121) to penetrate through the positioning inner gear ring (13);
the reset spring (124) is sleeved on the adjusting rod (122), and the limit part (123) tends to move towards the direction of the adjusting rod (122) due to the reset spring (124);
after the adjusting rod (122) compresses the return spring (124) and moves towards the direction of the limiting part (123), the positioning gear (121) is not meshed with the positioning inner gear ring (13) of the second rack (52) and the positioning inner gear ring (13) of the corresponding connecting bar (53) simultaneously.
6. The drive unit of the sinker device for a flat knitting machine according to claim 5, wherein: and two ends of the second rack (52) along the length direction are provided with hinge grooves (11) for hinging the connecting strips (53).
7. The drive unit of the sinker device for a flat knitting machine according to claim 5, wherein: a plurality of scales (18) are arranged at two ends of the second rack (52) along the length direction, and the scales (18) are circumferentially distributed along the hinge axis of the corresponding connecting strip (53) and the second rack (52); and an indicating line (19) aligned with the scale (18) is arranged on the connecting strip (53).
8. The drive unit of the sinker device for a flat knitting machine according to claim 3, wherein: each connecting strip (53) is hinged with a reinforcing rod (15), and one end, far away from the connecting strip (53), of the reinforcing rod (15) is used for being fixed on the sinker slider (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022525520.8U CN213507428U (en) | 2020-11-04 | 2020-11-04 | Drive unit of sinker device of flat knitting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022525520.8U CN213507428U (en) | 2020-11-04 | 2020-11-04 | Drive unit of sinker device of flat knitting machine |
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| CN213507428U true CN213507428U (en) | 2021-06-22 |
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| CN202022525520.8U Active CN213507428U (en) | 2020-11-04 | 2020-11-04 | Drive unit of sinker device of flat knitting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114366373A (en) * | 2022-01-28 | 2022-04-19 | 河北医科大学 | Skull horizontal position leveling instrument and leveling method for brain three-dimensional positioning injection |
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2020
- 2020-11-04 CN CN202022525520.8U patent/CN213507428U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114366373A (en) * | 2022-01-28 | 2022-04-19 | 河北医科大学 | Skull horizontal position leveling instrument and leveling method for brain three-dimensional positioning injection |
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