High-pressure needle cylinder

Abstract

A high pressure syringe includes a syringe body and a plurality of assemblies. One end of the needle cylinder body is an injection end, and the other end is an assembly end. The multiple assembly bodies are fixed to the outer wall of the needle cylinder body at intervals in the circumferential direction of the needle cylinder body. The assembly body is a solid boss and is used for being detachably connected with the injection pump. The section of the assembly body in the axial direction of the needle cylinder body is a right trapezoid. And an inclined surface is arranged on the assembly body and is used for playing a guiding role when the high-pressure needle cylinder is mounted on the injection pump. According to the designed high-pressure needle cylinder, the assembly body is the solid boss, and the section of the assembly body in the axial direction of the needle cylinder body is in the shape of the right trapezoid, so that the designed assembly body has high bearing strength, and better structural stability is achieved when the assembly body is connected with an injection pump. The inclined planes on the assembly bodies and the gaps between the adjacent assembly bodies can play a role in guiding installation, so that the high-pressure needle cylinder is more convenient to install on the injection pump.

Description

Technical Field

[0001] This application relates to the technical field of high-pressure syringes, and particularly to a high-pressure syringe barrel. Background Art

[0002] In the existing technical field of high-pressure syringes, there are various structural forms of interfaces between the syringe barrel and the injection pump for assembly and fixed connection. For example, as shown in Figure 1-2 the high-pressure syringe barrel shown, there are multiple mounting blocks A at the bottom. The mounting blocks A are of a hollow structure, and the hollow structure inside the mounting blocks A is divided into several small spaces by the reinforcing ribs B. The high-pressure syringe barrel is fixed on the injection pump through the mounting blocks A. The disadvantages of this form of assembly are that the hollow mounting blocks A have low structural strength and poor guiding performance, making it not smooth enough when the high-pressure syringe barrel is installed on the injection pump. Utility Model Content

[0003] This application provides a high-pressure syringe barrel, and its main purpose is to design a high-pressure syringe barrel that is convenient for assembly.

[0004] In one embodiment of this application, a high-pressure syringe barrel is provided, including: a syringe barrel main body and multiple assembly bodies;

[0005] One end of the syringe barrel main body is an injection end, and the other end is an assembly end;

[0006] The multiple assembly bodies are fixedly spaced along the circumferential direction of the syringe barrel main body on the outer wall of the syringe barrel main body;

[0007] The assembly body is a solid boss, and the assembly body is used for detachable connection with the injection pump; the cross-section of the assembly body along the axial direction of the syringe barrel main body is a right trapezoid; there is an inclined surface on the assembly body, and the inclined surface is used for guiding when the high-pressure syringe barrel is installed on the injection pump.

[0008] In one embodiment, along the circumferential direction of the syringe barrel main body, the end face of the assembly body is a guiding surface; the guiding surfaces at both ends of the same assembly body are close to each other, so that the two guiding surfaces between adjacent assembly bodies form an open installation opening.

[0009] In one embodiment, the included angle between the two guiding surfaces between adjacent assembly bodies is not less than 90°.

[0010] In one embodiment, a guiding groove is opened on the outer wall of the syringe barrel main body, one end of the guiding groove extends to the installation opening, and the other end of the guiding groove extends to the assembly end.

[0011] In one embodiment, a guiding opening is provided on one side of the guiding groove close to the assembly end, and along the circumferential direction of the syringe barrel main body, from the side close to the assembly end to the side away from the assembly end, the size of the guiding opening gradually becomes smaller.

[0012] In one embodiment, the number of the assemblies is 3 to 6, and the multiple assemblies are evenly distributed along the circumferential direction of the syringe body.

[0013] In one embodiment, the number of the assemblies is 4.

[0014] In one embodiment, a limiting body is further included, and the limiting body is fixed on the outer wall of the syringe body between the assembly and the injection end, and the limiting body is used to limit the installation position of the high-pressure syringe.

[0015] In one embodiment, the limiting body is annular.

[0016] In one embodiment, at least one annular groove is formed on the outer wall of the syringe body between the assembly and the assembly end, and reflected light is provided in the annular groove, and the reflected light is used to assist the optical decoding function.

[0017] According to the high-pressure syringe in the above embodiment, the assembly is a solid boss, and the cross-section of the assembly along the axial direction of the syringe body is a right trapezoid, so that the designed assembly has a high pressure-bearing strength and better structural stability when the assembly is connected to the injection pump. The inclined surface on the assembly can play a guiding role when the high-pressure syringe is installed on the injection pump, and, the gaps between adjacent assemblies distributed at intervals along the circumferential direction on the outer wall of the syringe body can also play a guiding installation role, making it more convenient to install the high-pressure syringe on the injection pump. Description of the Drawings

[0018] Figure 1 is a schematic cross-sectional structure diagram of an existing high-pressure syringe;

[0019] Figure 2 is a front view of an existing high-pressure syringe;

[0020] Figure 3 is a schematic three-dimensional structure diagram of a high-pressure syringe in an embodiment of the present application;

[0021] Figure 4 is a front view of a high-pressure syringe in an embodiment of the present application;

[0022] Figure 5 [[ID=�9]]is a bottom view of a high-pressure syringe in an embodiment of the present application;

[0023] Figure 6 is a schematic cross-sectional structure diagram of a high-pressure syringe in an embodiment of the present application;

[0024] Figure 7 is a schematic three-dimensional structure diagram of a high-pressure syringe in another embodiment of the present application;

[0025] Figure 8 The front view of the high-pressure syringe in another embodiment of this application;

[0026] Figure 9 The schematic diagram of the three-dimensional structure of the high-pressure syringe in yet another embodiment of this application;

[0027] Figure 10 The schematic diagram of the injection pump structure.

[0028] Explanation of the reference numerals in the drawings:

[0029] A. Mounting block, B. Reinforcing rib,

[0030] 10. Syringe body, 11. Injection end, 12. Assembly end, 13. Guide groove, 14. Guide port, 15. Annular groove, 20. Assembly body, 21. Inclined surface, 22. Guide surface, 23. Mounting port, 24. Buckling surface, 25. Connection surface, 30. Limiting body, 40. Injection pump, 41. Assembly groove, 42. Guide protrusion. Detailed implementation manners

[0031] The following further elaborates on this application in detail through specific implementation manners in conjunction with the drawings. Similar components in different implementation manners adopt related similar reference numerals. In the following implementation manners, many detailed descriptions are provided to enable a better understanding of this application. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other components, materials, or methods. In some cases, some operations related to this application are not shown or described in the specification to avoid overwhelming the core part of this application with excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the descriptions in the specification and general technical knowledge in the art.

[0032] In addition, the features, operations, or characteristics described in the specification can be combined in any appropriate manner to form various implementation manners. At the same time, the steps or actions in the method description can also be reordered or adjusted in an obvious manner for those skilled in the art. Therefore, the various sequences in the specification and drawings are only for clearly describing a certain embodiment and do not mean a necessary sequence unless it is stated that a certain sequence must be followed.

[0033] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connection (coupling).

[0034] Such as Figure 3-9As shown in the figure, in an embodiment of the present application, a high-pressure syringe is provided, including: a syringe body 10 and a plurality of assemblies 20.

[0035] One end of the syringe body 10 is an injection end 11, and the other end is an assembly end 12.

[0036] The plurality of assemblies 20 are fixedly arranged on the outer wall of the syringe body 10 at intervals along the circumferential direction of the syringe body 10.

[0037] The assembly 20 is a solid boss, and the assembly 20 is used for detachable connection with an injection pump 40. The cross-section of the assembly 20 along the axial direction of the syringe body 10 is a right trapezoid. A slope 21 is provided on the assembly 20, and the slope 21 is used for guiding when the high-pressure syringe is installed on the injection pump 40.

[0038] Using the high-pressure syringe in the above embodiment, the assembly 20 is a solid boss, and the cross-section of the assembly 20 along the axial direction of the syringe body 10 is a right trapezoid, so that the designed assembly 20 has a high pressure-bearing strength and better structural stability when the assembly 20 is connected to the injection pump 40. The slope 21 on the assembly 20 can play a natural guiding role when the high-pressure syringe is installed on the injection pump 40. Moreover, the plurality of assemblies 20 are distributed at intervals along the circumferential direction on the outer wall of the syringe body 10, and the gap between adjacent assemblies 20 can also play a guiding and installing role, making it more convenient to install the high-pressure syringe on the injection pump 40. The plurality of assemblies 20 are distributed at intervals on the outer wall of the syringe body 10 at the same axial position. Compared with a full circle of assemblies 20, it is convenient to disassemble the high-pressure syringe.

[0039] As Figure 3 shown, along the circumferential direction of the syringe body 10, the end face of the assembly 20 is a guiding face 22. The guiding faces 22 at both ends of the same assembly 20 are close to each other, so that the two guiding faces 22 between adjacent assemblies 20 form an open installation opening 23. The open installation opening 23 points to the side away from the axis of the syringe body 10, and the size of the installation opening 23 gradually increases, so that when the high-pressure syringe is installed on the injection pump 40 (as Figure 10 shown), the installation opening 23 can cooperate with the guiding protrusion 42 on the assembly groove 41 of the injection pump 40 to quickly realize the installation of the high-pressure syringe; or when the high-pressure syringe is disassembled from the injection pump 40, the installation opening 23 can cooperate with the guiding protrusion 42 on the injection pump 40 to quickly realize the disassembly of the high-pressure syringe.

[0040] Specifically, the assembly 20 is as Figure 3As shown in the figure, in addition to the inclined surface 21 and the guiding surface 22, the assembly 20 further has a snap surface 24 and a connecting surface 25. Among them, the snap surface 24 is perpendicular to the axis of the syringe body 10, so that when the snap surface 24 is snapped with the surface on the syringe pump 40, it is more fitting, thereby ensuring the stability of the installation of the high-pressure syringe. The snap surface 24 and the inclined surface 21 are distributed oppositely along the axial direction of the syringe body 10. One side of the connecting surface 25 is connected to the snap surface 24, and the other side of the connecting surface 25 is connected to the inclined surface 21.

[0041] Preferably, the included angle between the two guiding surfaces 22 of adjacent assemblies 20 is not less than 90°, so as to ensure the opening degree of the installation opening 23 formed by the two guiding surfaces 22 between adjacent assemblies 20, and further ensure the matching effect between the installation opening 23 and the guiding protrusion 42 on the syringe pump 40.

[0042] Preferably, as Figure 7-8 shown in the figure, a guiding groove 13 is opened on the outer wall of the syringe body 10. One end of the guiding groove 13 extends to the installation opening 23, and the other end of the guiding groove 13 extends to the assembly end 12. Through the guiding effect of the guiding groove 13, when the high-pressure syringe is loaded onto the syringe pump 40, there is a certain guiding effect, so as to align the installation opening 23 on the syringe body 10 with the guiding protrusion 42 on the syringe pump 40, thereby facilitating the assembly of the high-pressure syringe.

[0043] Preferably, as Figure 7-8 shown in the figure, a guiding port 14 is provided on one side of the guiding groove 13 close to the assembly end 12. Along the circumferential direction of the syringe body 10, from the side close to the assembly end 12 to the side far from the assembly end 12, the size of the guiding port 14 gradually becomes smaller. The opened guiding port 14 is similar to a trumpet-shaped opening. Under the action of the guiding port 14, when the staff installs the high-pressure syringe onto the syringe pump 40, it is not necessary to strictly align the guiding groove 13 with the guiding protrusion 42 on the syringe pump 40. When installing the high-pressure syringe under the action of the guiding port 14, it will play a guiding and calibrating role, and directly align the guiding groove 13 with the guiding protrusion 42 on the syringe pump 40 in a mechanical manner. The designed guiding port 14 plays a preliminary guiding role in the installation process of the high-pressure syringe, the guiding groove 13 plays a process guiding role, and the installation opening 23 plays an installation and fixing guiding role. Through the cooperation of the guiding port 14, the guiding groove 13 and the installation opening 23, the installation process of the high-pressure syringe is made sufficiently smooth and convenient.

[0044] Specifically, the number of the assemblies 20 is 3 to 6, and the multiple assemblies 20 are evenly distributed or arrayed along the circumferential direction of the syringe body 10. The more the number of the assemblies 20, the more the formed mounting openings 23 are. The high-pressure syringe has more directions to be inserted and fixed on the syringe pump 40, which is convenient for the installation of the high-pressure syringe. At the same time, when disassembling the high-pressure syringe, the rotation angle of the high-pressure syringe is smaller, and thus it is convenient to disassemble the high-pressure syringe. More preferably, the number of the assemblies 20 is 4.

[0045] As Figure 3-9 shown, the high-pressure syringe further includes a limiting body 30. The limiting body 30 is fixed on the outer wall of the syringe body 10 between the assembly 20 and the injection end 11. The limiting body 30 is used to limit the installation position of the high-pressure syringe. For example, the limiting body 30 is annular to play a limiting role during the installation of the high-pressure syringe. Among them, the assembly 20 and the limiting body 30 are both integrally processed structures with the syringe body 10.

[0046] As Figure 9 shown, at least one annular groove 15 is formed on the outer wall of the syringe body 10 between the assembly 20 and the assembly end 12. The annular groove 15 is provided with reflected light, and the reflected light is used to assist the optical decoding function. For example, two annular grooves 15 are formed on the outer wall of the syringe body 10 between the assembly 20 and the assembly end 12.

[0047] The above uses specific examples to elaborate on the present application, which is only used to help understand the present application and is not intended to limit the present application. For those skilled in the art of the present application, according to the idea of the present application, several simple deductions, deformations or substitutions can also be made.

Claims

1. A high-pressure syringe, characterized in that, Comprising: A syringe body and a plurality of assemblies; One end of the syringe body is an injection end, and the other end is an assembly end; The plurality of assemblies are fixedly arranged on the outer wall of the syringe body at intervals along the circumferential direction of the syringe body; The assembly is a solid boss, and the assembly is used for detachably connecting with an injection pump; the cross-section of the assembly along the axial direction of the syringe body is a right trapezoid; a slope is provided on the assembly, and the slope is used for guiding when the high-pressure syringe is installed on the injection pump; Along the circumferential direction of the syringe body, the end face of the assembly is a guiding surface; the guiding surfaces at both ends of the same assembly are close to each other, so that the two guiding surfaces between adjacent assemblies form an open installation opening.

2. The high-pressure syringe according to claim 1, characterized in that, The included angle between the two guiding surfaces between adjacent assemblies is not less than 90°.

3. The high-pressure syringe according to claim 1, wherein, A guiding groove is formed on the outer wall of the syringe body, one end of the guiding groove extends to the installation opening, and the other end of the guiding groove extends to the assembly end.

4. The high-pressure syringe according to claim 3, characterized in that, A guiding opening is arranged on one side of the guiding groove close to the assembly end, and along the circumferential direction of the syringe body, from the side close to the assembly end to the side far from the assembly end, the size of the guiding opening gradually becomes smaller.

5. The high-pressure syringe according to claim 1, characterized in that, The number of the assemblies is 3 to 6, and the plurality of assemblies are evenly distributed along the circumferential direction of the syringe body.

6. The high-pressure syringe according to claim 5, wherein, The number of the assemblies is 4.

7. The high-pressure syringe according to claim 1, characterized in that, It further includes a limiting body, the limiting body is fixed on the outer wall of the syringe body between the assembly and the injection end, and the limiting body is used for limiting the installation position of the high-pressure syringe.

8. The high-pressure syringe according to claim 7, characterized in that, The limiting body is annular.

9. The high-pressure syringe according to claim 1, characterized in that, At least one annular groove is formed on the outer wall of the syringe body between the assembly and the assembly end, and a reflected light is arranged in the annular groove, and the reflected light is used for assisting the optical decoding function.

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