CN209645572U - A kind of novel injection pump infusing device - Google Patents

Abstract

The utility model belongs to syringe pump equipment technical field, propose a kind of novel injection pump infusing device, including screw rod, it is moved on screw rod along its axis and is provided with grip block, one Slideslip of grip block is provided with sliding block, shaft is fixedly installed on sliding block, one end of shaft passes through grip block, the other end is connect with handle assembly, grip block is connect by torsional spring with sliding block, grip block includes the first grip block and the second grip block, first grip block one end connects shaft, the other end is arranged on screw rod, first grip block one end is connect with the second grip block by pin shaft, the other end is arranged on screw rod, rack gear is fixedly installed on second grip block, transmission gear has been engaged on rack gear, transmission gear is fixed on the first grip block, solving existing half-nut and being engaged with screw rod leads to be easy de- the technical issues of turning.

Description

A kind of novel injection pump infusing device

Technical field

The utility model belongs to syringe pump equipment technical field, is related to a kind of novel injection pump infusing device.

Background technique

Syringe pump be complete for a long time, micro, uniform accurate injection device, can be used for quiet, the artery note of clinical departments It penetrates, anesthetic injection and the chemotherapy of cancer patient etc., therefore is more and more widely used in medical field.It is existing Syringe pump apparatus generally includes the motor drive component being made of stepper motor and spur gear deceleration device, additionally includes circuit The parts such as mounting plate, screw rod, half-nut, guide rod, push handle drive rod.

Application No. is the syringe pump infusing device of CN201420552724.2, driving motor is driven by spur gearing Dynamic screw rod Linear transmission, and precision is low, output torque is small, and noise is larger in operational process, and motor load is excessive, and it is stifled motor occur Turn phenomenon；Slide plate is connect with guide rod by simple tube-in-tube structure, and frictional resistance is larger when slide plate slides on the guide bar, fortune Row stationarity is extremely low；Half-nut is engaged on screw rod under being acted on by spring, moves in a straight line push handle, due to injecting resistance It is larger, it can occur that half-nut is de- to turn phenomenon often, can not work normally.

Utility model content

The utility model proposes a kind of novel injections to pump infusing device, and solving above-mentioned half-nut and being engaged with screw rod causes It is easy de- the technical issues of turning.

The technical solution of the utility model is achieved in that

A kind of novel injection pump infusing device, comprising:

Screw rod moves on the screw rod along its axis and is provided with grip block, and one Slideslip of grip block is provided with sliding block, Shaft is fixedly installed on the sliding block, one end of the shaft passes through the grip block, and the other end is connect with handle assembly, institute Grip block is stated to be connected with the slide block by torsional spring, the grip block include the first grip block and the second grip block, described first Grip block one end connects the shaft, and the other end is arranged on the screw rod, first grip block one end and second folder It holds block to connect by pin shaft, the other end is arranged on the screw rod, and rack gear, the tooth are fixedly installed on second grip block Transmission gear is engaged on item, the transmission gear is fixed on first grip block.

As further technical solution, the cross section of the both ends of the shaft is D-shaped, and first grip block one end is set It is equipped with the fan-shaped pylone for passing through the shaft, the other end is provided with the first semi-circular recesses, sets on second grip block The second semi-circular recesses are equipped with, second semi-circular recesses and first semi-circular recesses are matched for clamping tightly the screw rod.

As further technical solution, described screw rod one end is provided with power device, and the power device includes and institute The driven gear of screw rod coaxial arrangement is stated, the driven gear is connect by belt with driving gear, the driving gear radius Less than the driven gear, the driving gear side is coaxially arranged with motor.

As further technical solution, the torsional spring passes through shaft the latter stabilizer blade and squeezes first clamping Block, another stabilizer blade are fixed in the sliding block.

As further technical solution, the sliding block side is provided with pedestal, and sliding rail is provided on the pedestal, described Sliding block is moved along the sliding rail.

As further technical solution, the handle assembly includes the fastener with shaft coaxial arrangement, the card It is rotated outside part and is provided with roller gear two, the roller gear two is engaged with roller gear one, coaxial with the roller gear one Rotation is provided with handle.

As further technical solution, it is coaxially arranged with lock ring between the roller gear one and the handle, it is described Lock ring side is provided with fixed column, and the lock ring is connect by reset spring with the fixed column.

As further technical solution, the side of the roller gear one has been engaged roller gear five, the circle Sector gear three is coaxially arranged on stud wheel five, three side of sector gear has been engaged sector gear four, the fan It is coaxially arranged with right clamp holder and left clamp holder respectively on shape gear three and the sector gear four.

As further technical solution, two inner wall of the roller gear setting is fluted, and the fastener outer wall is provided with Boss, the roller gear two push down the boss rotation after rotating.

As further technical solution, the roller gear one, the sector gear three, the sector gear four, institute It states roller gear five, the lock ring, the fastener to be rotatably provided in the shell, the fixed column is fixed at described In shell, the right clamp holder, the left clamp holder and the handle are arranged at outside the shell.

Compared with prior art, it utility model works principle and has the beneficial effect that

1, in the utility model, it is provided with grip block on screw rod, grip block locking or can unclamp screw rod, when injecting When syringe, grip block locking screw rod, as the rotation of screw rod drives grip block to move towards end along straight line, when needing replacing Syringe type, rotating shaft make the first grip block rotate some angles, the first grip block and the second folder along the direction far from screw rod It holds block and unclamps screw rod, and be drawn to the other end by hand, clamp syringe again, remove the power for twisting axis, the first grip block at this time It is resetted under the reaction force of torsional spring and holds screw rod tightly with the second grip block again.

2, in the utility model, shaft is provided on sliding block, one end of shaft is inserted into grip block, the other end and hand handle group Part connection, shaft can rotate in sliding block, in handle assembly, and handle assembly is used to clamp the bar of injecting of syringe, and in screw rod In rotation process, the direction for making shaft drive handle assembly liquid constantly into bolus syringe is mobile.Grip block includes first Grip block and the second grip block, one end of the second grip block are inserted into the first grip block and are fixed by pin shaft, the second grip block Side is provided with rack gear, and the first grip block is ipsilateral to be provided with transmission gear, and transmission gear is engaged with rack, and works as rotating shaft, passes Moving gear rotates about 2mm with the first grip block, and the first grip block becomes larger with the second grip block spacing, and gap is generated between screw rod Screw rod is unclamped；Clamp block reset when first, gear rotate backward be engaged with rack gear after 2mm it is even closer, thus drive second Grip block can also hold screw rod tightly closer to the first grip block.

3, in the utility model, one end of the first grip block is provided with fan-shaped pylone, can produce to the shaft that end is D-shaped It is raw to squeeze, so that shaft be made to drive the rotation of the first grip block, will not produce relative rotation.The other end of first grip block is provided with First semi-circular recesses are provided with the second semi-circular recesses on the second grip block, and two semi-circular recesses are opposite to be combined into Round hole screw mandrel passes through and clamps screw rod.

4, in the utility model, screw rod is provided with power device far from one end of handle assembly, and power device includes motor, The driving gear rotated coaxially is provided on motor output shaft, driving gear is connect by belt with driven gear, driven gear It is rotated coaxially with screw rod, the diameter of driving gear is less than driven gear, so that the linear velocity of driven gear is less than driving gear Linear velocity can accurately control the revolving speed of screw rod in this way.With driving belt instead of spur gearing, spur gear transmission is defeated Torque is small out, and noise is big, when gear kills failure, can damage to driving motor, and not only noise is small for belt transmission, When overload happens, belt can be with slipping protection driving motor.

5, in the utility model, sleeve is provided with outside shaft, sleeve is arranged between handle assembly and sliding block, and shaft passes through There is no sleeve outside one end of grip block, torsional spring is through in one section of shaft of not set sleeve, and two stabilizer blades one of torsional spring is pressed in On first grip block, another is penetrated in sliding block, and when the first grip block rotates, torsional spring can generate the active force of compression, therefore Locking screw rod can be resetted under the restoring force of torsional spring when the power that the first grip block is not rotated manually.

6, in the utility model, sliding block side is provided with pedestal, and pedestal is parallel with screw rod, and sliding rail is provided on pedestal, sliding The both ends setting of block is fluted, and groove card makes sliding block move linearly along the direction parallel with screw rod on the slide rail.Component Including fastener, fastener and shaft are rotated synchronously, and are provided with roller gear two outside fastener, roller gear two is nibbled with roller gear one It closes, roller gear one and handle coaxial rotating rotate handle, and roller gear two can rotate with, and drive shaft rotation.

7, in the utility model, hand handle controls the spacing of left clamp holder and right clamp holder for manually rotating, thus clamp or Syringe to be unclamped, roller gear one is coaxially arranged in the rotary shaft of hand handle, roller gear shape is cylinder-shaped, and columnar one End is provided with sector.Roller gear five is provided in one circumferential direction of roller gear, coaxial rotating is provided with fan on roller gear five Shape gear three, the side of sector gear three are provided with sector gear four, and roller gear one is engaged with roller gear five, sector gear Three rotate coaxially with roller gear five, and sector gear three is engaged with sector gear four, the rotation of sector gear three and sector gear four It is coaxially arranged with right clamp holder and left clamp holder respectively again in shaft, therefore, works as rotary handle, hand handle drives roller gear one to rotate, The rotation of one synchronous drive roller gear five of roller gear, roller gear five drive sector gear three and sector gear four to rotate, from And left handle and right handles is driven to rotate to close or separate direction.When left handle and right handles are close to each other, can clamp It is placed on syringe between the two, when being located remotely from each other, can unclamp to take out syringe.With rotation clamp holder instead of fixed branch Frame substantially reduces the abrasion of handle assembly, so the degree of wear reduces, improves the stability of Medical Devices.Pass through several teeth The mutual cooperation of wheel realizes rotation hand handle to adjust the rotation of clamp holder, and structure simplifies, and is easy production.

8, in the utility model, it is provided with lock ring in the rotary shaft of roller gear one, when people's not rotary handle, lock ring is used In the position of integral cast handle.The hand handle synchronous rotary of lock ring is provided with a fixed column on the path of lock ring rotation, lock ring with Fixed column is connected by reset spring, and when not rotary handle, lock ring and fixed column are held by reset spring, will not arbitrarily be revolved Turn, after rotary handle certain angle, reset spring is squeezed, and left handle and right handles are located remotely from each other, and syringe is placed on a left side Between handle and right handles, hand is unclamped, the opposition of reset spring keeps left handle and right handles close to each other, clamps injection Device.

9, in the utility model, fastener outer wall is provided with boss, and the setting of two inner wall of roller gear is fluted, makes its inner hole not It is circular, when handle rotates, drive roller gear one is rotated, and roller gear one is engaged with roller gear two, as hand handle is revolved Turn, roller gear two also starts turning, and when turning an angle, the boss of two end of roller gear and the boss of fastener are generated Contact, and the boss rotation of fastener is push, fastener energy band turn axis rotation again, to open the first grip block and the second clamping Block.

10, in the utility model, handle assembly further includes having shell, and left clamp holder and right clamp holder are arranged in shell close to screw rod Side, handle setting is in the shell other side, roller gear one, sector gear three, sector gear four, roller gear five, lock Ring, fastener, fixed column are respectively provided with inside the shell.

Detailed description of the invention

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments.

Fig. 1 is the utility model schematic perspective view；

Fig. 2 is grip block and enlarged structure schematic diagram at sliding block in the utility model；

Fig. 3 is another angle schematic diagram of the utility model stereochemical structure；

Fig. 4 is enlarged structure schematic diagram at the utility model torsional spring；

Fig. 5 is the utility model grip block schematic perspective view；

Fig. 6 is the first grip block of the utility model schematic perspective view；

Fig. 7 is the second grip block of the utility model schematic perspective view；

Fig. 8 is two schematic perspective view of the utility model roller gear；

Fig. 9 is the utility model handle assembly front schematic diagram of internal structure；

Figure 10 is reverse structure schematic inside the utility model handle assembly；

Figure 11 is the utility model handle assembly shell mechanism schematic diagram；

Figure 12 is enlarged structure schematic diagram at the utility model lock ring；

In figure: 1- screw rod, 2- grip block, the first grip block of 21-, 211- scalloped recess, 212- semi-circular recesses, 22- Two grip blocks, 23- pin shaft, 24- rack gear, 25- transmission gear, 3- sliding block, 4- shaft, 41- sleeve, 5- handle assembly, 50- card Part, 501- boss, 51- roller gear one, 52- roller gear two, 521- groove, 53- sector gear three, 54- sector gear four, 55- roller gear five, 56- handle, 57- lock ring, 58- fixed column, 59- reset spring, 6- power device, 61- driven gear, 62- driving gear, 63- motor, 7- pedestal, 8- torsional spring, 71- sliding rail, the right clamp holder of 91-, the left clamp holder of 92-, 93- shell.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Fig. 1-Figure 12, the utility model proposes a kind of novel injections to pump infusing device, comprising:

Screw rod 1 moves on screw rod 1 along its axis and is provided with grip block 2, and 2 one Slideslip of grip block is provided with sliding block 3, sliding Rotation is provided with shaft 4 on block 3, and one end of shaft 4 passes through grip block 2, and the other end is connect with handle assembly 5, and grip block 2 passes through Torsional spring 8 is connect with sliding block 3, and grip block 2 includes the first grip block 21 and the second grip block 22, and the connection of 21 one end of the first grip block turns Axis 4, the other end are arranged on screw rod 1, and 21 one end of the first grip block is connect with the second grip block 22 by pin shaft 23, and the other end is set It sets on screw rod 1, rack gear 24 is fixedly installed on the second grip block 22, transmission gear 25 has been engaged on rack gear 24, be driven Gear 25 is fixed on the first grip block 21.

In the present embodiment, it is provided with grip block on screw rod 1, grip block 2 locking or can unclamp screw rod 1, when injecting When syringe, 2 locking screw rod 1 of grip block works as needs as the rotation of screw rod 1 drives grip block to move along straight line towards end Syringe type is replaced, rotating shaft 4 makes the first grip block 21 rotate some angles, the first grip block along the direction far from screw rod 1 21 and second grip block 22 unclamp screw rod 1, and be drawn to the other end by hand, clamp syringe again, remove twist axis 4 at this time Power, the first grip block 21 resets under the reaction force of torsional spring 8 holds screw rod 1 tightly with the second grip block 22 again.

In the present embodiment, shaft 4 is provided on sliding block 3, one end of shaft 4 is inserted into grip block, the other end and hand handle group Part 5 connects, and shaft 4 can rotate in sliding block 3, in handle assembly 5, and handle assembly 5 is used to clamp the bar of injecting of syringe, and In 1 rotation process of screw rod, the direction for making shaft 4 drive the liquid constantly into bolus syringe of handle assembly 5 is mobile.Grip block 2 Including the first grip block 21 and the second grip block 22, in the first grip block of one end insertion 21 of the second grip block 22 and pass through pin shaft 23 is fixed, and 22 side of the second grip block is provided with rack gear 24, and the first grip block 21 is ipsilateral to be provided with transmission gear 25, transmission gear 25 engage with rack gear 24, and when rotating shaft 4, transmission gear 25 rotates about 2mm with the first grip block 21, the first grip block 21 and the Two grip blocks, 22 spacing becomes larger, and gap is generated between screw rod 1 and has unclamped screw rod 1；When the first grip block 21 resets, gear is reversed Rotation 2mm after be engaged with rack gear 24 it is even closer, thus drive the second grip block 22 closer to the first grip block 21, can also embrace Tight screw rod 1.

Further, the cross section at 4 both ends of shaft is D-shaped, and 21 one end of the first grip block is provided with for passing through shaft 4 Fan-shaped pylone 211, the other end are provided with the first semi-circular recesses 212, are provided with the second semi-circular recesses on the second grip block 22 221, the second semi-circular recesses 221 and the first semi-circular recesses 212 are matched for clamping tightly the screw rod 1.

In the present embodiment, one end of the first grip block 21 is provided with fan-shaped pylone 211, can be the shaft 4 of D-shaped to end Extruding is generated, so that shaft 4 be made to drive the rotation of the first grip block 21, will not be produced relative rotation.First grip block 21 it is another End is provided with the first semi-circular recesses 212, the second semi-circular recesses 222 is provided on the second grip block 22, two semicircles are recessed Slot can be combined into round hole screw mandrel 1 relatively and pass through and clamp screw rod 1.

Further, 1 one end of screw rod is provided with power device 6, and power device 6 includes the driven tooth being coaxially disposed with screw rod 1 Wheel 61, driven gear 61 are connect by belt with driving gear 62, and 62 radius of driving gear is less than driven gear 61, driving gear 62 sides are coaxially arranged with motor 63.

In the present embodiment, screw rod 1 is provided with power device 6 far from one end of handle assembly 5, and power device 6 includes motor 63, the driving gear 62 rotated coaxially is provided on 63 output shaft of motor, driving gear 62 is connected by belt and driven gear 61 It connecing, driven gear 61 is rotated coaxially with screw rod 1, and the diameter of driving gear 62 is less than driven gear 61, so that driven gear 61 Linear velocity is less than the linear velocity of driving gear 62, can accurately control the revolving speed of screw rod 1 in this way.With driving belt instead of commutating tooth Wheel transmission device, spur gear transmission output torque is small, and noise is big, when gear kills failure, can make to driving motor 63 At damage, not only noise is small for belt transmission, and when overload happens, belt can be with slipping protection driving motor 63.

Further, torsional spring 8 passes through 4 the latter stabilizer blade of shaft and squeezes the first grip block 21, and another stabilizer blade is fixed on sliding block 3 It is interior.

In the present embodiment, sleeve 41 is provided with outside shaft 4, sleeve 41 is arranged between handle assembly 5 and sliding block 3, shaft 4 There is no sleeve 41 outside one end of grip block, torsional spring 8 is through in one section of shaft 4 of not set sleeve 41, two branch of torsional spring 8 One, foot is pressed on the first grip block 21, another is penetrated in sliding block 3, and when the first grip block 21 rotates, torsional spring 8 can generate pressure The active force of contracting, therefore when the power that the first grip block 21 is not rotated manually locking can be resetted under the restoring force of torsional spring 8 Screw rod 1.

Further, sliding block side is provided with pedestal 7, and sliding rail 71 is provided on pedestal 7, and sliding block 3 is moved along sliding rail 71.

In the present embodiment, 3 side of sliding block is provided with pedestal 7, and pedestal 7 is parallel with screw rod 1, and sliding rail 71 is provided on pedestal 7, The both ends setting of sliding block 3 is fluted, and groove, which is stuck in, makes sliding block 3 move linearly along the direction parallel with screw rod 1 on sliding rail 71.

Further, handle assembly 5 includes the fastener 50 being coaxially disposed with shaft 4, rotates outside fastener 50 and is provided with Cylinder Gear 2 52 are taken turns, roller gear 2 52 is engaged with roller gear 1, is rotated coaxially with roller gear 1 and is provided with handle 56.

In the present embodiment, handle assembly 5 includes fastener 50, and fastener 50 and shaft 4 are rotated synchronously, be provided with outside fastener 50 Roller gear 2 52, roller gear 2 52 are engaged with roller gear 1, roller gear 1 and 56 coaxial rotating of handle, rotation Handle 56, roller gear 2 52 can rotate with, and shaft 4 is driven to rotate.

Further, the side of roller gear 1 has been engaged roller gear 5 55, coaxially sets on roller gear 5 55 It is equipped with sector gear 3 53,3 53 side of sector gear has been engaged sector gear 4 54, sector gear 3 53 and sector It takes turns and is coaxially arranged with right clamp holder 91 and left clamp holder 92 on 4 54 respectively.

In the present embodiment, hand handle controls the spacing of left clamp holder 92 and right clamp holder 91 for manually rotating, thus clamp or Syringe is unclamped, roller gear 1 is coaxially arranged in the rotary shaft 4 of hand handle, roller gear shape is cylindrical shape, cylinder-shaped One end be provided with sector.It is provided with roller gear 5 55 in one 51 circumferential direction of roller gear, is coaxially revolved on roller gear 5 55 Turn to be provided with sector gear 3 53, the side of sector gear 3 53 is provided with sector gear 4 54, roller gear 1 and cylinder Gear 5 55 engages, and sector gear 3 53 is rotated coaxially with roller gear 5 55, and sector gear 3 53 is nibbled with sector gear 4 54 It closes, is coaxially arranged with right clamp holder 91 and left clamp holder 92 respectively again in the rotary shaft 4 of sector gear 3 53 and sector gear 4 54, because This, works as rotary handle, and hand handle drives roller gear 1 to rotate, the rotation of one 51 synchronous drive roller gear 5 55 of roller gear, Roller gear 5 55 drives sector gear 3 53 and sector gear 4 54 to rotate, thus drive left handle and right handles to close or The separate direction of person rotates.When left handle and right handles are close to each other, the syringe being placed between the two can be clamped, when mutually remote From when, can unclamp to taking out syringe.

The abrasion of handle assembly 5 is substantially reduced instead of fixed bracket with rotation clamp holder in this example, so abrasion journey Degree reduces, and improves the stability of Medical Devices.Rotation hand handle is realized by the mutual cooperation of several gears to adjust the rotation of clamp holder Turn, structure simplifies, and is easy production.

Further, lock ring 57 is coaxially arranged between roller gear 1 and handle 56,57 side of lock ring is provided with fixation Column 58, lock ring 57 are connect by reset spring 59 with fixed column 58.

In the present embodiment, it is provided with lock ring 57 in the rotary shaft 4 of roller gear 1, when people's not rotary handle, lock ring 57 are used for the position of integral cast handle.The hand handle synchronous rotary of lock ring 57 is provided with a fixation on the path that lock ring 57 rotates Column 58, lock ring 57 is connect with fixed column 58 by reset spring 59, and when not rotary handle, lock ring 57 and fixed column 58 pass through again Position spring 59 is held, and will not be rotated at random, after rotary handle certain angle, reset spring 59 is squeezed, left handle and the right side Handle is located remotely from each other, and syringe is placed between left handle and right handles, unclamps hand, and the opposition of reset spring 59 makes left hand Handle and right handles are close to each other, clamp syringe.

Further, 2 52 inner wall of roller gear setting fluted 521,50 outer wall of fastener is provided with boss 501, roller gear The rotation of boss 501 is pushed down after 2 52 rotations.

In the present embodiment, 50 outer wall of fastener is provided with boss 501, and 2 52 inner wall of roller gear setting fluted 521 makes it Inner hole is not circular, and when handle 56 rotates, drive roller gear 1 is rotated, and roller gear 1 is nibbled with roller gear 2 52 Close, as hand handle rotates, roller gear 2 52 is also started turning, when turning an angle, 2 52 end of roller gear it is convex Platform 501 is contacted with the generation of the boss 501 of fastener 50, and the boss 501 that push fastener 50 rotates, fastener 50 and energy band turn axis 4 Rotation, to open the first grip block 21 and the second grip block 22.

Further, roller gear 1, sector gear 3 53, sector gear 4 54, roller gear 5 55, lock ring 57, card Part 50 is rotatably provided in shell 93, and fixed column 58 is fixed in shell 93, right clamp holder 91, left clamp holder 92 and handle 56 It is arranged at outside shell 93.

In the present embodiment, handle assembly 5 further includes having shell 93, and left clamp holder 92 and the setting of right clamp holder 91 are close in shell 93 The side of screw rod 1, the setting of handle 56 in 93 other side of shell, roller gear 1, sector gear 3 53, sector gear 4 54, Roller gear 5 55, lock ring 57, fastener 50, fixed column 58 are arranged in shell 93.

Further, sleeve 41 is arranged with outside the shaft 4.

In the present embodiment, sleeve 41 is provided with outside shaft 4, for sealing shaft 4, avoid dust from entering causes to turn sleeve 41 Axis 4 rotates ineffective.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model Protection scope within.

Claims (10)

1. a kind of novel injection pumps infusing device, which is characterized in that including screw rod (1), moved on the screw rod (1) along its axis It is provided with grip block (2), (2) one Slideslip of grip block is provided with sliding block (3), is fixedly installed and is turned on the sliding block (3) One end of axis (4), the shaft (4) passes through the grip block (2), and the other end is connect with handle assembly (5), the grip block (2) it is connect by torsional spring (8) with the sliding block (3),

The grip block (2) includes the first grip block (21) and the second grip block (22), and described first grip block (21) one end connects The shaft is connect, the other end is arranged on the screw rod (1), described first grip block (21) one end and second grip block (22) it is connected by pin shaft (23), the other end is arranged on the screw rod (1), is fixedly installed on second grip block (22) Rack gear (24) has been engaged transmission gear (25) on the rack gear (24), and the transmission gear (25) is fixed at described On first grip block (21).

2. a kind of novel injection according to claim 1 pumps infusing device, which is characterized in that shaft (4) both ends Cross section is D-shaped, and described first grip block (21) one end is provided with for the fan-shaped pylone (211) across the shaft (4), The other end is provided with the first semi-circular recesses (212), is provided with the second semi-circular recesses on second grip block (22) (221), second semi-circular recesses (221) and first semi-circular recesses (212) are matched for clamping tightly the screw rod (1).

3. a kind of novel injection according to claim 1 pumps infusing device, which is characterized in that described screw rod (1) one end is set Be equipped with power device (6), the power device (6) include with the screw rod (1) coaxial arrangement driven gear (61), it is described from Moving gear (61) is connect by belt with driving gear (62), and driving gear (62) radius is less than the driven gear (61), driving gear (62) side is coaxially arranged with motor (63).

4. a kind of novel injection according to claim 1 pumps infusing device, which is characterized in that the torsional spring (8) passes through institute It states shaft (4) the latter stabilizer blade and squeezes first grip block (21), another stabilizer blade is fixed in the sliding block (3).

5. a kind of novel injection according to claim 1 pumps infusing device, which is characterized in that the sliding block side is provided with Pedestal (7) is provided with sliding rail (71) on the pedestal (7), and the sliding block (3) is mobile along the sliding rail (71).

6. a kind of novel injection according to claim 1 pumps infusing device, which is characterized in that handle assembly (5) packet The fastener (50) with the shaft (4) coaxial arrangement is included, the fastener (50) rotates outside is provided with roller gear two (52), described Roller gear two (52) is engaged with roller gear one (51), is rotated coaxially with the roller gear one (51) and is provided with handle (56)。

7. a kind of novel injection according to claim 6 pumps infusing device, which is characterized in that the roller gear one (51) It is coaxially arranged between the handle (56) lock ring (57), lock ring (57) side is provided with fixed column (58), the lock Ring (57) is connect by reset spring (59) with the fixed column (58).

8. a kind of novel injection according to claim 7 pumps infusing device, which is characterized in that the roller gear one (51) Side has been engaged roller gear five (55), and sector gear three (53), institute are coaxially arranged on the roller gear five (55) It states sector gear three (53) side and has been engaged sector gear four (54), the sector gear three (53) and the sector gear Right clamp holder (91) and left clamp holder (92) are coaxially arranged on four (54) respectively.

9. a kind of novel injection according to claim 8 pumps infusing device, which is characterized in that the roller gear two (52) Fluted (521) are arranged in inner wall, and fastener (50) outer wall is provided with boss (501), after roller gear two (52) rotation Push down the boss (501) rotation.

10. a kind of novel injection according to claim 9 pumps infusing device, which is characterized in that the roller gear one (51), the sector gear three (53), the sector gear four (54), the roller gear five (55), the lock ring (57), institute It states fastener (50) to be rotatably provided in shell (93), the fixed column (58) is fixed in the shell (93), described Right clamp holder (91), the left clamp holder (92) and the handle (56) are arranged at the shell (93) outside.