一种高压造影针筒安装结构

Abstract

本实用新型涉及高压造影针筒技术领域，尤其是一种高压造影针筒安装结构。其包括针筒和用于针筒固定安装的针筒固定座，所述针筒的下端开口外侧壁设置限位环板，所述限位环板下端面设置多个下限位块，所述针筒固定座上端面设置多个限位槽，多个下限位块一一对应设置在多个限位槽中，下限位块转动到接触限位槽的一侧壁时，限位卡块正好转动到限位挡块正下方。本实用新型的针筒和针筒固定座通过旋紧配合连接，拆装操作方便快捷；本实用新型通过下限位块和限位槽的配合，能够保证针筒在针筒安装座上旋转到位，避免针筒松脱情况的发生；本实用新型通过上限位块的设置，直观展现下限位块的安装位置，方便了针筒的拆装工作。

Claims

1. A high-pressure contrast syringe mounting structure comprising a syringe (100) and a syringe fixing seat (200) for fixed mounting of the syringe (100), characterized in that: The syringe holder (200) is provided with a syringe mounting cavity, and a plurality of limiting blocks (210) are provided on the inner wall of the syringe mounting cavity. A plurality of limiting blocks (120) are provided on the outer wall of the lower opening of the syringe (100). The limiting blocks (120) are inserted through the gap between two adjacent limiting blocks (210) and rotated to be directly below the limiting blocks (210), thereby realizing the fixed installation of the syringe (100) on the syringe holder (200); the syringe (100) A limiting ring plate (110) is provided on the outer wall of the lower opening. Multiple lower limiting blocks (130) are provided on the lower end face of the limiting ring plate (110). Multiple limiting grooves (240) are provided on the upper end face of the syringe holder (200). Multiple lower limiting blocks (130) are arranged one-to-one in the multiple limiting grooves (240). When the lower limiting block (130) rotates to contact the side wall of the limiting groove (240), the limiting block (120) rotates exactly to the bottom of the limiting stop (210).

2. A high pressure syringe mounting structure as defined in claim 1, wherein: The syringe (100) has a syringe cavity for containing the injected liquid, and a piston (300) is disposed in the syringe cavity. The side wall of the piston (300) is in sealed contact with the inner wall of the syringe cavity, and the piston (300) can slide back and forth along the length of the syringe cavity.

3. A high pressure syringe mounting structure as defined in claim 2, wherein: The piston (300) includes a mounting base and a sealing rubber sleeve (330) fitted on the mounting base, with the sidewall of the sealing rubber sleeve (330) in sealing contact with the inner wall of the syringe cavity.

4. A high pressure syringe mounting structure as defined in claim 3, wherein: The mounting base includes an upper mounting base (320) and a lower mounting base (310) arranged correspondingly. A downwardly protruding positioning sleeve (321) is provided at the lower center of the upper mounting base (320), and an upwardly protruding positioning post (311) is provided at the upper center of the lower mounting base (310). The positioning post (311) is connected in the positioning sleeve (321). A downwardly protruding inner positioning ring (322) is provided at the lower edge of the upper mounting base (320), and an upwardly protruding outer positioning ring (312) is provided at the upper edge of the lower mounting base (310). The outer positioning ring (312) is connected to the outer surface of the inner positioning ring (322). A mounting groove (313) is provided on the side of the lower mounting base (310), and the lower inner side of the sealing rubber sleeve (330) is fitted into the mounting groove (313). Two protruding L-shaped connecting ear plates (340) are provided on the lower end face of the lower mounting base (310). The connecting ear plates (340) are used to connect with the push rod.

5. A high pressure syringe barrel mounting structure as defined in claim 4, wherein: A separation groove (220) is provided between two adjacent limit blocks (210). The spacing of the separation groove (220) is sufficient to allow the limit block (120) to pass through vertically. A limit base plate (230) is horizontally provided inside the syringe mounting cavity. The limit base plate (230) is located directly below the multiple limit blocks (210). A gap is left between the limit blocks (210) and the limit base plate (230) to accommodate the limit blocks (210).

6. A high pressure syringe mounting structure as defined in claim 5, wherein: The upper end face of the limiting ring plate (110) is provided with multiple upper limit blocks (140), and the multiple upper limit blocks (140) are respectively located directly above the multiple lower limit blocks (130).

7. A high pressure syringe barrel mounting structure as defined in claim 6, wherein: The needle cylinder fixing base (200) is provided with a push rod mounting hole (250) in the center, and the push rod extends into the needle cylinder (100) through the push rod mounting hole (250) and is connected with the piston (300).

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