Protective sleeve syringe needle

Abstract

The utility model provides a syringe needle with a protective sleeve, and belongs to the technical field of syringes. A syringe needle with a protective sleeve comprises a needle body, the needle body is divided into a needle body and a needle cap, a telescopic assembly is installed on the needle cap of the needle body, and the telescopic assembly is arranged on the peripheral side of the needle body; the telescopic assembly comprises a fixed sleeve fixed to the needle head, the peripheral side of the fixed sleeve is sleeved with a movable sleeve, at least two sealing plates are hinged to the bottom of the movable sleeve, an abutting ring and at least two pressing rods are arranged in the movable sleeve in a sliding mode, and the pressing rods and the abutting ring are fixed together. According to the syringe needle protection sleeve, the abutting ring abuts against the sealing plate to enable the sealing plate to be opened and closed, through the arrangement of the movable sleeve, the syringe needle protection sleeve cannot leave the syringe needle in the syringe needle opening and closing process, and therefore the problem that the syringe needle protection sleeve is lost due to the fact that the syringe needle protection sleeve is placed at will can be solved, and people are accidentally injured by the syringe needle.

Description

Technical Field

[0001] The utility model belongs to the field of syringes, in particular to a syringe needle with a protective sleeve. Background Art

[0002] Syringe needles are generally covered with an outer protective cover, on the one hand to protect the needle from collisions and dust, and on the other hand to prevent the needle from accidentally injuring people. However, most protective covers are now separately set. After using the needle, the staff may place it at will, resulting in the needle being unprotected by the protective cover after use, which can easily cause harm to people. Utility Model Content

[0003] The utility model aims at the deficiencies of the prior art and provides a protective sleeve syringe needle.

[0004] In order to achieve the above-mentioned object, the utility model provides the following technical solution: a protective sleeve syringe needle, comprising a needle, the needle being divided into a needle and a needle cap, characterized in that: a telescopic component is installed on the needle cap of the needle, and the telescopic component is on the outer peripheral side of the needle;

[0005] The telescopic assembly includes a fixed sleeve fixed on the needle head, a movable sleeve is provided on the outer peripheral side of the fixed sleeve, at least two sealing plates are hinged at the bottom of the movable sleeve, an abutment ring and at least two pressure rods are slidably provided inside the movable sleeve, the pressure rod and the abutment ring are fixed together, and the sealing plate is abutted by the abutment ring to open and close it.

[0006] Optionally, the interior of the movable sleeve is hollow, at least two sliding grooves are provided in the movable sleeve, the pressure rod is in the sliding grooves, and a limiting groove is also provided in the pressure rod.

[0007] Optionally, a limiting ball is provided on an end surface of one side of the pressure rod away from the abutment ring, the limiting ball abuts against the bottom of the fixing sleeve, and the limiting ball cooperates with the limiting groove.

[0008] Optionally, a retaining ring is fixed in the movable sleeve, the pressure rod passes through the retaining ring, and a spring is provided between the abutting ring and the retaining ring.

[0009] Optionally, a torsion spring is provided at the hinge of the sealing plate, and the sealing plate just seals the telescopic assembly when closed.

[0010] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. Due to the setting of the telescopic component, the movable sleeve can be set so that it will not leave the needle during the process of opening and closing the needle, thereby avoiding the problem of the needle protective sleeve being randomly placed and lost, thereby causing accidental injury to people by the needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model.

[0013] Figure 2 It is a cross-sectional view of the utility model.

[0014] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0015] Figure 4 For this utility model Figure 2 Enlarged view of point B in the middle.

[0016] 10. Needle; 11. Fixed sleeve; 12. Movable sleeve; 13. Sealing plate; 14. Pressure rod; 15. Blocking ring; 16. Abutting ring; 17. Slide groove; 18. Limiting groove; 19. Limiting ball. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0018] As shown in Figures 1-4, a protective sleeve syringe needle includes a needle 10, and the needle 10 is divided into a needle and a needle cap, and is characterized in that: a telescopic component is installed on the needle cap of the needle 10, and the telescopic component is on the outer peripheral side of the needle 10, and the telescopic component includes a fixed sleeve 11 fixed on the needle 10, and a movable sleeve 12 is sleeved on the outer peripheral side of the fixed sleeve 11, and at least two sealing plates 13 are hinged at the bottom of the movable sleeve 12, and a torsion spring is provided at the hinge of the sealing plate 13, and the sealing plate 13 just seals the telescopic component when it is closed, and an abutment ring 16 and at least two pressure rods 14 are slidably provided in the movable sleeve 12, and the pressure rod 14 and the abutment ring 16 are fixed together, and the sealing plate 13 is abutted by the abutment ring 16 to be opened and closed, and a retaining ring 15 is also fixed in the movable sleeve 12, and the pressure rod 14 passes through the retaining ring 15, and a spring is provided between the abutment ring 16 and the retaining ring 15.

[0019] The interior of the movable sleeve 12 is hollow, and at least two slide grooves 17 are provided in the movable sleeve 12. The pressure rod 14 is in the slide groove 17. A limiting groove 18 is also provided in the pressure rod 14. A limiting ball 19 is provided on the end face of the pressure rod 14 on one side away from the abutment ring 16. The limiting ball 19 abuts against the bottom of the fixed sleeve 11, and the limiting ball 19 cooperates with the limiting groove 18.

[0020] During use, when it is necessary to open the needle, push the movable sleeve 12 backward with force. At this time, since the limiting ball 19 abuts against the fixed sleeve 11, the abutment ring 16 is driven by the limiting ball 19 and the pressure rod 14 to overcome the spring force and move in the direction away from the fixed sleeve 11, and then the abutment ring 16 abuts against the sealing plate 13 to rotate and open it, so that the needle can be exposed. Continue to push the movable sleeve 12 to make the limiting ball 19 move to the limiting groove 18. At this time, the limiting ball 19 enters the limiting groove 18, and the fixed sleeve 11 cannot abut against the limiting ball 19, but the limiting ball 19 is restricted in the limiting groove 18. At this time, the sealing plate 13 can be kept in an open state, and the needle can be used at will. It can also avoid the protective sleeve from being lost due to being randomly placed, thereby causing accidental injury to people by the needle.

[0021] When protection is performed, the movable sleeve 12 is pulled outward to expose the limiting ball 19, and then the limiting ball 19 is separated from the limiting groove 18 under the elastic force of the spring and abuts against the bottom of the fixed sleeve 11 again, and the sealing plate 13 is also restored to the closed state through the torsion spring.

[0022] Obviously, the described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. A protective sleeve syringe needle, comprising a needle (10), wherein the needle (10) is divided into a needle and a needle cap, characterized in that: A telescopic component is installed on the needle cap of the needle (10), and the telescopic component is on the outer peripheral side of the needle of the needle (10); The telescopic assembly comprises a fixed sleeve (11) fixed on the needle head (10), a movable sleeve (12) being sleeved on the outer peripheral side of the fixed sleeve (11), at least two sealing plates (13) being hingedly connected to the bottom of the movable sleeve (12), an abutment ring (16) and at least two pressure rods (14) being slidably provided inside the movable sleeve (12), the pressure rod (14) and the abutment ring (16) being fixed together, and the sealing plate (13) is abutted by the abutment ring (16) to open and close the movable sleeve.

2. A protective sleeve syringe needle according to claim 1, characterized in that: The interior of the movable sleeve (12) is hollow, at least two slide grooves (17) are provided in the movable sleeve (12), the pressure rod (14) is in the slide grooves (17), and a limiting groove (18) is also provided in the pressure rod (14).

3. A protective sleeve syringe needle according to claim 2, characterized in that: A limiting ball (19) is provided on one end surface of the pressure rod (14) away from the abutment ring (16); the limiting ball (19) abuts against the bottom of the fixing sleeve (11); the limiting ball (19) cooperates with the limiting groove (18).

4. A protective sleeve syringe needle according to claim 1, characterized in that: A retaining ring (15) is also fixed inside the movable sleeve (12), the pressure rod (14) passes through the retaining ring (15), and a spring is provided between the abutting ring (16) and the retaining ring (15).

5. The protective sleeve syringe needle according to claim 1, characterized in that: A torsion spring is provided at the hinge of the sealing plate (13), and the sealing plate (13) just seals the telescopic assembly when it is closed.

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