Emulsion injector

Abstract

The utility model provides an emulsion injector, and relates to the technical field of cultural relic repair. The emulsion injector comprises an injection cylinder, an injection rod and a force application mechanism. The injection cylinder is provided with a cylinder cavity and a liquid outlet communicated with the cylinder cavity; the injection rod is mounted in the cylinder cavity in a sliding manner; the force application mechanism comprises a base, a handle, a force transmission assembly and a shifting piece, the base is installed on the syringe, the handle is rotatably matched with the base, the handle is connected to the shifting piece through the force transmission assembly, and the shifting piece is connected with the injection rod; the handle is used for driving the shifting piece to move through the force transmission assembly, so that the injection rod is driven to move through the shifting piece, and the injection rod extrudes liquid in the barrel cavity out of the liquid outlet. When the injector is used, the flow speed and the flow can be well controlled, the operation difficulty is reduced, and the permeation effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cultural relics restoration, in particular to an emulsion syringe. Background Art

[0002] Cultural relics are witnesses and remains of history and culture. Protecting cultural relics can inherit and continue historical and cultural heritage, maintain cultural diversity, and promote cultural exchange and understanding. Among them, ancient tombs, grottoes, murals, and immovable cultural relics can appear in any form in almost any place during the restoration process, such as peeling of the paint layer and alkali. At present, most of the restoration tools we use are homemade, which can solve some problems, but most of the problems cannot be effectively solved, so having professional restoration tools has become an important part of it.

[0003] The adhesive syringe currently used is usually a combination of a rubber suction bulb and a syringe. This syringe has a simple structure and can solve some problems, but most of the problems have not been solved. The first is the flow rate problem. For the same repair area, different people use different syringe needle models and different hand strengths, which will affect the amount of adhesive used. It can be said that the repair depends entirely on the repairer's feeling; secondly, this repairer often seems to be unable to do its job when it needs to inject and penetrate from bottom to top, and cannot achieve a good penetration effect. Utility Model Content

[0004] The utility model aims to provide an emulsion syringe, which can better control the flow rate and flow rate, reduce the difficulty of operation, and improve the penetration effect.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides an emulsion syringe, comprising:

[0007] A syringe, an injection rod and a force-applying mechanism; the syringe is provided with a barrel cavity and a liquid outlet connected to the barrel cavity; the injection rod is slidably installed in the barrel cavity; the force-applying mechanism comprises a base, a handle, a force transmission assembly and a toggle member, the base is installed on the syringe, the handle is rotatably matched with the base, the handle is connected to the toggle member through the force transmission assembly, and the toggle member is connected to the injection rod; the handle is used to drive the toggle member to move through the force transmission assembly, so as to drive the injection rod to move through the toggle member, so that the injection rod can squeeze the liquid in the barrel cavity out of the liquid outlet.

[0008] In an optional embodiment, the force-applying mechanism further includes an elastic member, which is connected to both the handle and the base, and is configured to allow the handle to have a tendency to rotate away from the syringe.

[0009] Based on the above scheme, by setting an elastic part, during the process of pressing the handle, the elastic part can not only provide a certain elastic force and force feedback to improve the operating feel, but also use the elastic force to push the handle to reset after the external force applied to the handle is removed, which is conducive to the subsequent use of the handle.

[0010] In an optional embodiment, the elastic member is configured as a spring or a rubber member.

[0011] Based on the above solution, the elastic member has a simple structure, low cost and convenient assembly.

[0012] In an optional embodiment, a threaded hole is provided on the base, a connecting stud is threaded in the threaded hole, and the connecting stud is connected to one end of the elastic member; a hook is provided on the handle, and the other end of the elastic member is connected to the hook.

[0013] Based on the above scheme, a connecting stud fixes one end of the elastic part. By rotating the connecting stud, the length of the connecting stud extending out of the threaded hole can be adjusted, that is, the compressed length of the elastic part is adjusted, and the initial elastic force of the elastic part is adjusted. When the operator applies force to the handle, the force of the elastic part supporting the handle can be changed due to the different elastic forces, thereby adjusting the feel of the operator when using the handle, which is flexible and easy to use.

[0014] In an optional embodiment, the connecting stud includes a column and a connecting ring, the column is threadedly connected to the threaded hole, the connecting ring is rotatably matched with the column, and the connecting ring and the column are relatively fixed in the axial extension direction of the column; one end of the elastic member is connected to the connecting ring.

[0015] Based on the above scheme, when adjusting the elastic force of the elastic member, force can be applied to the column, and the column rotates relative to the threaded hole to adjust the length of the column extending out of the threaded hole. Since the connecting ring is rotatably matched with the column and the connecting ring is connected to the elastic member, the connecting ring will not rotate with the column and will not drive the elastic member to rotate together. When adjusting the elastic force of the elastic member by rotating the column, the elastic member is not easy to generate torque, and the elastic member can provide a more stable elastic force. In addition, when rotating the column, there is no need to remove the elastic member from the connecting ring to prevent the elastic member from generating torque, which reduces the difficulty of adjustment and improves the adjustment efficiency.

[0016] In an optional embodiment, the force transmission assembly includes a connecting shaft, a transmission block and a positioning shaft, the connecting shaft is mounted on the handle, the transmission block is provided with a strip hole, the connecting shaft is passed through the strip hole; the positioning shafts are all mounted on the base, the positioning shafts are located on a side of the connecting shaft away from the liquid outlet; the transmission block is rotatably matched with the positioning shaft, and the toggle member is fixed to the transmission block;

[0017] When the handle rotates along a first direction, the connecting shaft slides in the strip hole and drives the toggle member to rotate in a second direction around the positioning shaft through the transmission block, so as to drive the injection rod to press the liquid in the barrel cavity through the toggle member; the first direction is opposite to the second direction.

[0018] Based on the above scheme, in the initial state, the handle is at a certain distance from the syringe, and at this time, the injection rod does not press the liquid. When it is necessary to extrude the liquid through the injection rod, force is applied to the handle, and the handle is rotated close to the syringe, and the handle drives the connecting shaft to move. When the connecting shaft drives the transmission block to rotate around the positioning shaft, the connecting shaft also slides in the bar hole of the transmission block to avoid interference and jamming. When the transmission block is driven to rotate, the torque is transmitted to the toggle member through the transmission block, and the rotational movement of the toggle member is converted into the linear movement of the injection rod, so that the injection rod squeezes the liquid in the barrel cavity from the liquid outlet to complete the injection operation. By adjusting the force applied to the handle, it is helpful to control the flow rate of the liquid being squeezed out, and the operation is convenient.

[0019] In an optional embodiment, the shift member includes a connecting rod, a shift block and a torsion spring, the connecting rod is fixedly connected to the transmission block, the shift block is rotatably mounted on the connecting rod, and the torsion spring is simultaneously connected to the shift block and the connecting rod, and the torsion spring is used to make the shift block have a tendency to rotate close to the injection rod so that the shift block always abuts against the injection rod.

[0020] Based on the above solution, under the action of the torsion spring, the shift block always has a tendency to abut against the injection rod, and the shift block is not easy to slip with the injection rod, which is conducive to converting the rotational motion of the shift block into the linear motion of the injection rod.

[0021] In an optional embodiment, a force transmission protrusion is provided on the injection rod, and the shift block abuts against a side of the force transmission protrusion away from the liquid outlet.

[0022] Based on the above solution, the shift block abuts against the force transmission protrusion, so that the rotational motion of the shift block is converted into the linear motion of the injection rod through the force transmission protrusion. It should be understood that the force transmission protrusion can be an annular structure, and the force transmission protrusion is sleeved outside the injection rod. When the injection rod rotates relative to the injection barrel, the shift block can also always abut against the force transmission protrusion.

[0023] In an optional embodiment, the emulsion syringe further comprises an injection needle, wherein the injection needle is mounted on the syringe barrel and connected to the liquid outlet.

[0024] Based on the above scheme, when injecting the emulsion, the injection needle can be used to adjust the liquid outlet position, which is flexible to use and has a wide range of applications.

[0025] In an optional embodiment, a limit block is provided on the base, and the limit block is used to abut against the handle when the handle rotates close to the injection cylinder to limit the rotation angle of the handle.

[0026] Based on the above solution, by setting a limit block, the angle at which the handle rotates close to the injection barrel can be limited, thereby improving the safety of the operation.

[0027] The beneficial effects of the embodiments of the utility model are:

[0028] In summary, the emulsion syringe provided in this embodiment stores a fixed amount of liquid in the syringe when liquid needs to be injected, and then aligns the liquid outlet with the position to be injected, holds the syringe and the handle with one hand, applies force to the handle, and rotates the handle close to the syringe. Under the cooperation of the force transmission component and the toggle member, the toggle member can drive the injection rod to slide linearly relative to the syringe, and the injection rod slides to squeeze the liquid out of the liquid outlet. The one-handed grip method is used to apply force, which is convenient for controlling the force and pressing speed, thereby accurately controlling the flow rate and flow rate of the liquid, and the operation is flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 A schematic diagram of an emulsion injector according to an embodiment of the present utility model;

[0031] Figure 2 It is a cross-sectional schematic diagram of an emulsion injector according to an embodiment of the utility model;

[0032] Figure 3 Schematic diagram of a connecting stud according to an embodiment of the present utility model.

[0033] icon:

[0034] 100-syringe barrel; 200-injection rod; 210-force transmission protrusion; 300-force applying mechanism; 310-base; 320-handle; 330-force transmission assembly; 331-connecting shaft; 332-transmission block; 3321-strip hole; 334-positioning shaft; 340-actuator; 341-connecting rod; 342-actuator block; 350-elastic member; 360-connecting stud; 361-column; 362-connecting ring; 370-rotating shaft; 400-injection needle. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the prior art, when using emulsion for operations such as cultural relics restoration, a syringe is generally used to deliver the emulsion. The syringe includes a barrel and a rubber ball installed at one end of the barrel. By pressing the rubber ball, the liquid can be squeezed out from the front end of the barrel. Since the shape of the rubber ball is difficult to control and the strength is difficult to control when pressing, the emulsion extrusion operation relies on the experience of the operator, the operation is difficult, and the cultural relics treatment effect is poor.

[0042] In view of this, the designer provides an emulsion syringe that is convenient for controlling the strength and speed of the force applied, thereby facilitating the control of the flow and flow rate of the liquid. It does not require high experience from the operating personnel, is simple and convenient to use, and is conducive to carrying out operations such as cultural relics restoration.

[0043] Please combine Figure 1-Figure 3 In this embodiment, the emulsion syringe includes a syringe 100, an injection rod 200 and a force-applying mechanism 300. The syringe 100 is provided with a barrel cavity and a liquid outlet connected to the barrel cavity; the injection rod 200 is slidably installed in the barrel cavity; the force-applying mechanism 300 includes a base 310, a handle 320, a force transmission assembly 330 and a toggle member 340, the base 310 is installed on the syringe 100, the handle 320 is rotatably matched with the base 310, the handle 320 is connected to the toggle member 340 through the force transmission assembly 330, and the toggle member 340 is connected to the injection rod 200; the handle 320 is used to drive the toggle member 340 to move through the force transmission assembly 330, so as to drive the injection rod 200 to move through the toggle member 340, so that the injection rod 200 squeezes the liquid in the barrel cavity out of the liquid outlet.

[0044] Based on the above, the working mode of the emulsion injector provided in this embodiment is as follows:

[0045] When liquid needs to be injected, a fixed amount of liquid is stored in the syringe 100, and then the liquid outlet is aligned with the position to be injected, the syringe 100 and the handle 320 are held in one hand, and force is applied to the handle 320 to rotate the handle 320 close to the syringe 100. Under the cooperation of the force transmission component 330 and the toggle member 340, the injection rod 200 can be driven to slide linearly relative to the syringe 100 through the toggle member 340, and the injection rod 200 squeezes the liquid out of the liquid outlet when sliding. The one-handed holding method is used to apply force, which is convenient for controlling the force and pressing speed, thereby accurately controlling the flow rate and flow rate of the liquid, and the operation is flexible and convenient.

[0046] It should be noted that after pressing the handle 320 to complete one injection, the handle 320 can be adjusted to return to the initial position, and the injection rod 200 can be pulled to reset the injection rod 200 to facilitate the next injection operation.

[0047] The following examples illustrate the details of the emulsion syringe provided in the present application by way of examples.

[0048] In this embodiment, optionally, the force-applying mechanism 300 further includes an elastic member 350 , which is connected to both the handle 320 and the base 310 , and is used to make the handle 320 have a tendency to rotate away from the syringe 100 .

[0049] In this way, by setting the elastic member 350, during the process of pressing the handle 320, the elastic member 350 is compressed, and the handle 320 needs to overcome the elastic force of the elastic member 350. The elastic member 350 can not only provide a certain elastic force to provide force feedback for pressing the handle 320 and improve the operating feel, but also can use the elastic force to push the handle 320 to reset after the external force applied to the handle 320 is withdrawn, which is beneficial to the subsequent use of the handle 320.

[0050] It should be understood that the elastic member 350 can be configured as a spring or a rubber member, etc. The elastic member 350 has a simple structure, low cost, and is easy to assemble.

[0051] It should be understood that the base 310 can be set as a split structure, the base 310 includes two half shells, the two half shells can be fixed by screws, the two half shells are clamped on the injection barrel 100, the two half shells are located on both sides of the injection barrel 100, and the two half shells cooperate to clamp the injection barrel 100 to achieve a fixed connection between the three. At the same time, the two half shells can simultaneously fix a rotating shaft 370, and the handle 320 can be rotatably installed on the rotating shaft 370. In order to improve the stability of the handle 320, the handle 320 is clamped between the two half shells, and the force transmission assembly and the toggle member 340 are both located between the two half shells. At the same time, in order to cooperate with the toggle member 340 and the injection rod 200, the injection rod 200 is inserted between the two half shells.

[0052] In this embodiment, optionally, a threaded hole is provided on the base 310, and a connecting stud 360 is screwed into the threaded hole, and the connecting stud 360 is connected to one end of the elastic member 350; a hook is provided on the handle 320, and the other end of the elastic member 350 is connected to the hook. During assembly, the connecting stud 360 fixes one end of the elastic member 350, and by rotating the connecting stud 360, the length of the connecting stud 360 extending out of the threaded hole can be adjusted, that is, the length of the elastic member 350 being compressed is adjusted, and the initial elastic force of the elastic member 350 is adjusted. When the operator applies force to the handle 320, due to the difference in elastic force, the force of the elastic member 350 supporting the handle 320 can be changed, so that the operator can adjust the hand feeling when using the handle 320, which is flexible and easy to use.

[0053] Optionally, the connecting stud 360 includes a column 361 and a connecting ring 362, the column 361 is threadedly connected to the threaded hole, the connecting ring 362 is rotatably matched with the column 361, and the connecting ring 362 and the column 361 are relatively fixed in the axial extension direction of the column 361; one end of the elastic member 350 is connected to the connecting ring 362.

[0054] It should be understood that when adjusting the elastic force of the elastic member 350, force can be applied to the column 361, and the column 361 rotates relative to the threaded hole to adjust the length of the column 361 extending out of the threaded hole. Since the connecting ring 362 is rotatably matched with the column 361 and the connecting ring 362 is connected to the elastic member 350, the connecting ring 362 will not rotate with the column 361, and will not drive the elastic member 350 to rotate together. When adjusting the elastic force of the elastic member 350 by rotating the column 361, the elastic member 350 is not easy to generate torque, and the elastic member 350 can provide a more stable elastic force. In addition, when rotating the column 361, it is not necessary to remove the elastic member 350 from the connecting ring 362 to prevent the elastic member 350 from generating torque, which reduces the difficulty of adjustment and improves the adjustment efficiency.

[0055] In addition, an outer hexagonal surface may be provided on the column 361 to facilitate cooperation with a wrench and to facilitate rotation of the column 361 .

[0056] Furthermore, a limit block is provided on the base 310, and the limit block is used to abut against the handle 320 when the handle 320 rotates close to the syringe 100 to limit the rotation angle of the handle 320. By providing the limit block, the rotation angle of the handle 320 close to the syringe 100 can be limited, thereby improving the safety of the operation. The limit block can be provided on one of the two half shells.

[0057] In this embodiment, optionally, the force transmission component includes a connecting shaft 331, a transmission block 332 and a positioning shaft 334, the connecting shaft 331 is installed on the handle 320, the transmission block 332 is provided with a strip hole 3321, and the connecting shaft 331 is penetrated in the strip hole 3321; the positioning shaft 334 is installed on the base 310, and the positioning shaft 334 is located on the side of the connecting shaft 331 away from the liquid outlet; the transmission block 332 and the positioning shaft 334 are rotatably matched, and the toggle member 340 is fixed to the transmission block 332;

[0058] When the handle 320 rotates in the first direction, the connecting shaft 331 slides in the bar hole 3321 and drives the toggle member 340 to rotate in the second direction around the positioning shaft 334 through the transmission block 332, so as to drive the injection rod 200 to press the liquid in the barrel cavity through the toggle member 340; the first direction is opposite to the second direction. Figure 2 Taking the perspective in as an example, the first direction is counterclockwise and the second direction is clockwise.

[0059] It should be understood that in the initial state, the handle 320 is at a certain distance from the syringe 100, and at this time, the injection rod 200 does not press the liquid. When it is necessary to squeeze out the liquid through the injection rod 200, force is applied to the handle 320, and the handle 320 rotates close to the syringe 100, and the handle 320 drives the connecting shaft 331 to move. When the connecting shaft 331 drives the transmission block 332 to rotate around the positioning shaft 334, the connecting shaft 331 also slides in the bar hole 3321 of the transmission block to avoid interference and jamming. When the transmission block 332 is driven to rotate, the torque is transmitted to the toggle member 340 through the transmission block 332, and the rotational movement of the toggle member 340 is converted into a linear movement of the injection rod 200, so that the injection rod 200 squeezes the liquid in the barrel cavity from the liquid outlet to complete the injection operation. By adjusting the force applied to the handle 320, it is beneficial to control the flow rate of the liquid squeezed out, and the operation is convenient.

[0060] In this embodiment, the toggle member 340 optionally includes a connecting rod 341, a toggle block 342 and a torsion spring (not shown), the connecting rod 341 is fixedly connected to the transmission block, the toggle block 342 is rotatably mounted on the connecting rod 341, and the torsion spring is connected to the toggle block 342 and the connecting rod 341 at the same time, and the torsion spring is used to make the toggle block 342 have a tendency to rotate close to the injection rod, so that the toggle block 342 always abuts against the injection rod. Under the action of the torsion spring, the toggle block 342 always has a tendency to abut against the injection rod 200, and the toggle block 342 is not easy to slip with the injection rod 200, which is conducive to converting the rotational motion of the toggle block 342 into the linear motion of the injection rod 200.

[0061] In addition, after the injection rod 200 slides toward the liquid outlet to squeeze out the liquid, the injection rod 200 is manually pulled back to facilitate the next injection. During the process of retracting the injection rod 200, the shift block 342 can be pressed to overcome the elastic force of the torsion spring and make the shift block 342 leave the injection rod 200. When the injection rod 200 retracts, it is not easy to rub against the shift block 342, and the retraction is more convenient.

[0062] Furthermore, the injection rod is provided with a force transmission protrusion 210, and the shift block 342 abuts against the side of the force transmission protrusion 210 away from the liquid outlet. The shift block 342 abuts against the force transmission protrusion 210, so as to convert the rotational motion of the shift block 342 into the linear motion of the injection rod 200 through the force transmission protrusion 210. It should be understood that the force transmission protrusion 210 can be an annular structure, and the force transmission protrusion 210 is sleeved outside the injection rod 200. When the injection rod 200 rotates relative to the injection barrel 100, the shift block 342 can also always abut against the force transmission protrusion 210.

[0063] In other embodiments, the emulsion injector may further include an injection needle 400, which is mounted on the syringe barrel 100 and connected to the liquid outlet. When injecting the emulsion, the injection needle 400 can be used to adjust the liquid outlet position, which is flexible and has a wide range of uses.

[0064] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An emulsion syringe, characterized in that: include: An injection barrel (100), an injection rod (200) and a force-applying mechanism (300); the injection barrel (100) is provided with a barrel cavity and a liquid outlet connected to the barrel cavity; the injection rod (200) is slidably installed in the barrel cavity; the force-applying mechanism (300) comprises a base (310), a handle (320), a force-transmitting component (330) and a toggle member (340); the base (310) is installed on the injection barrel (100), the handle (320) and the base (3 10) are rotatably matched, the handle (320) is connected to the toggle member (340) through the force transmission assembly (330), and the toggle member (340) is connected to the injection rod (200); the handle (320) is used to drive the toggle member (340) to move through the force transmission assembly (330), so as to drive the injection rod (200) to move through the toggle member (340), so that the injection rod (200) can squeeze the liquid in the barrel cavity out of the liquid outlet.

2. The emulsion syringe according to claim 1, characterized in that: The force applying mechanism (300) further comprises an elastic member (350), wherein the elastic member (350) is connected to both the handle (320) and the base (310) and is used to make the handle (320) have a tendency to rotate away from the injection cylinder (100).

3. The emulsion syringe according to claim 2, characterized in that: The elastic member (350) is configured as a spring or a rubber member.

4. The emulsion syringe according to claim 2, characterized in that: The base (310) is provided with a threaded hole, in which a connecting stud (360) is threaded, and the connecting stud (360) is connected to one end of the elastic member (350); the handle (320) is provided with a hook, and the other end of the elastic member (350) is connected to the hook.

5. The emulsion syringe according to claim 4, characterized in that: The connecting stud (360) includes a column (361) and a connecting ring (362), the column (361) is threadedly connected to the threaded hole, the connecting ring (362) and the column (361) are rotatably matched, and the connecting ring (362) and the column (361) are relatively fixed in the axial extension direction of the column (361); one end of the elastic member (350) is connected to the connecting ring (362).

6. The emulsion syringe according to claim 1, characterized in that: The force transmission assembly comprises a connecting shaft (331), a transmission block (332) and a positioning shaft (334); the connecting shaft (331) is mounted on the handle (320); a strip-shaped hole (3321) is provided on the transmission block (332); the connecting shaft (331) is inserted into the strip-shaped hole (3321); the positioning shaft (334) is mounted on the base (310); the positioning shaft (334) is located on a side of the connecting shaft (331) away from the liquid outlet; the transmission block (332) is rotatably matched with the positioning shaft (334); the toggle member (340) is fixed to the transmission block (332); When the handle (320) rotates in a first direction, the connecting shaft (331) slides in the strip-shaped hole (3321) and drives the toggle member (340) to rotate in a second direction around the positioning shaft (334) through the transmission block (332), so as to drive the injection rod (200) to press the liquid in the barrel cavity through the toggle member (340); the first direction is opposite to the second direction.

7. The emulsion syringe according to claim 6, characterized in that: The shifting member (340) comprises a connecting rod (341), a shifting block (342) and a torsion spring. The connecting rod (341) is fixedly connected to the transmission block. The shifting block (342) is rotatably mounted on the connecting rod (341). The torsion spring is simultaneously connected to the shifting block (342) and the connecting rod (341). The torsion spring is used to make the shifting block (342) have a tendency to rotate close to the injection rod so that the shifting block (342) always abuts against the injection rod.

8. The emulsion syringe according to claim 7, characterized in that: A force transmission protrusion (210) is provided on the injection rod, and the shift block (342) abuts against a side of the force transmission protrusion (210) away from the liquid outlet.

9. The emulsion syringe according to claim 1, characterized in that: The emulsion syringe further comprises an injection needle (400), wherein the injection needle (400) is mounted on the injection barrel (100) and is connected to the liquid outlet.

10. The emulsion syringe according to claim 1, characterized in that: A limit block is provided on the base (310), and the limit block is used to abut against the handle (320) when the handle (320) rotates close to the injection cylinder (100), so as to limit the rotation angle of the handle (320).

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