Automatic assembly equipment for disposable venous indwelling needle

Abstract

The utility model relates to the technical field of indwelling needles, in particular to automatic assembly equipment for disposable venous indwelling needles. The automatic assembly equipment for the disposable venous indwelling needle comprises a base, a sliding table air cylinder, a sliding table, a fixing piece, a movable table and a needle handle fixing base, the sliding table air cylinder is installed on the left side of the top of the base, a telescopic rod of the sliding table air cylinder is connected with the sliding table, and a needle tube orientation groove is formed in the middle of the top of the sliding table. The sliding table air cylinder serves as a power source to push the needle tube and the needle handle to be in accurate butt joint and fixed, then the sealing piece is limited through the needle handle fixing groove, the needle handle moves along the one-way rail to be connected with the sealing piece in a clamped mode, and therefore synchronous assembly of the needle tube, the needle handle and the sealing piece is completed. And the consistency and concentricity in the assembling process are ensured, and the product quality is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of indwelling needles, in particular to an automatic assembly device for disposable intravenous indwelling needles. Background Technique

[0002] The intravenous indwelling needle, also known as the intravenous cannula, its core components include a soft needle tube that can be left in the blood vessel and a stainless steel needle core for puncture. In the current market, during the production of intravenous indwelling needles, usually the assembly of the needle tube and the needle handle is first completed by a special device, and then the installation of the rubber seal is completed manually. Since the rubber seal is made of a relatively soft material, during the manual assembly process, it is easy to cause the situation of non-concentricity between the needle tube and the seal, thus affecting the quality of the product and the production efficiency.

[0003] Based on this, in order to solve the above-mentioned technical defects, an automatic assembly device for disposable intravenous indwelling needles is now proposed. Summary of the Utility Model

[0004] In order to overcome the shortcomings that the existing assembly devices assemble the seal, the needle tube and the needle handle separately, and it is easy to cause non-concentricity between the needle tube and the seal when assembling the seal, the technical problem of the utility model is: to provide an automatic assembly device for disposable intravenous indwelling needles.

[0005] The technical implementation plan of the utility model is: an automatic assembly device for disposable intravenous indwelling needles, which includes a base, a slide cylinder, a sliding table, a fixing piece, a movable table, a needle handle fixing seat, a power component and a limiting component. A slide cylinder is installed on the left side of the top of the base, a sliding table is connected to the telescopic rod of the slide cylinder, a needle tube orientation groove is opened in the middle of the top of the sliding table, a fixing piece for fixing the needle tube is installed in the middle of the top of the sliding table, a movable table is slidably connected to the right side of the top of the base, a needle handle fixing seat is connected to the top of the movable table, a needle handle fixing groove is opened in the top of the needle handle fixing seat, a power component is arranged on the right side of the base, and a limiting component is arranged at the rear side of the top of the base.

[0006] Optionally, it further includes a resisting block, and a slidable resisting block is arranged on the needle tube orientation groove for resisting the needle tube.

[0007] Optionally, the power component includes a slider and an electric slide rail. Electric slide rails are symmetrically installed on the right side of the base, sliders are connected to the electric slide rails, and the sliders are connected to the movable table.

[0008] Optionally, the limiting component includes a mounting frame, a fixing cylinder and a needle handle pressing plate. A mounting frame is installed at the rear side of the right part of the base, a fixing cylinder is installed on the mounting frame, a needle handle pressing plate is connected to the telescopic rod of the fixing cylinder, and a needle handle guiding groove matched with the needle handle fixing groove is opened at the bottom of the needle handle pressing plate.

[0009] Optionally, the needle handle fixing groove conforms to the shape of the needle handle, and the position of the needle handle guiding groove that cooperates with the needle handle is square, providing a sliding space for the needle handle.

[0010] Optionally, soft pads are padded at the four corners of the bottom of the base, which can improve the stability of the base placement.

[0011] The utility model has the following advantages: The utility model uses a slide table cylinder as a power source to push the needle tube and the needle handle for precise docking and fixing. Then, the sealing member is limited by the needle handle fixing groove, and the needle handle moves along the one-way track to achieve a snap connection with the sealing member, thereby completing the synchronous assembly of the needle tube, the needle handle, and the sealing member. This method not only significantly improves the assembly efficiency but also ensures the consistency and concentricity during the assembly process, greatly improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0013] Figure 2 is a first partial three-dimensional structural schematic diagram of the utility model.

[0014] Figure 3 is a second partial three-dimensional structural schematic diagram of the utility model.

[0015] Figure 4 is a third partial three-dimensional structural schematic diagram of the utility model.

[0016] In the above drawings: 1: base, 2: slide table cylinder, 21: sliding table, 3: needle tube orientation groove, 4: fixing piece, 41: abutting block, 5: movable table, 6: needle handle fixing seat, 61: needle handle fixing groove, 7: slider, 71: electric slide rail, 8: mounting bracket, 9: fixing cylinder, 10: needle handle pressing plate, 11: needle handle guiding groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Referring to the embodiments herein means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the utility model. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0018] Embodiment: A disposable intravenous indwelling needle automatic assembly device, as Figures 1-4As shown in the figure, it includes a base 1, a slide table cylinder 2, a sliding table 21, a fixing piece 4, a pressing block 41, a movable table 5, a needle handle fixing seat 6, a power assembly and a limit assembly. Soft pads are padded at the four corners of the bottom of the base 1, which can improve the stability of the placement of the base 1. A slide table cylinder 2 is installed on the left side of the top of the base 1. A sliding table 21 is connected to the telescopic rod of the slide table cylinder 2. A syringe needle orientation groove 3 is opened in the middle of the top of the sliding table 21. A slidable pressing block 41 is provided on the syringe needle orientation groove 3 for pressing against the syringe needle. The position of the pressing block 41 can be adjusted according to the length of the syringe needle. A fixing piece 4 for fixing the syringe needle is installed in the middle of the top of the sliding table 21. The movable table 5 is slidably connected to the right side of the top of the base 1. The needle handle fixing seat 6 is connected to the top of the movable table 5. A needle handle fixing groove 61 is opened on the top of the needle handle fixing seat 6. A power assembly for providing power to the movable table 5 is provided on the right side of the base 1. A limit assembly is provided at the rear side of the top of the base 1.

[0019] As Figure 1 and Figure 3 shown in the figure, the power assembly includes a slider 7 and an electric slide rail 71. The electric slide rails 71 are symmetrically installed on the front and rear sides of the right side of the base 1 by bolts. The sliders 7 are connected to the electric slide rails 71. The slider 7 is connected to the movable table 5.

[0020] As Figure 1 and Figure 4 shown in the figure, the limit assembly includes a mounting bracket 8, a fixing cylinder 9 and a needle handle pressing plate 10. The mounting bracket 8 is installed on the rear side of the right part of the base 1 by bolts. The fixing cylinder 9 is installed on the mounting bracket 8 by bolts. The needle handle pressing plate 10 is connected to the telescopic rod of the fixing cylinder 9. A needle handle guiding groove 11 matching the needle handle fixing groove 61 is opened at the bottom of the needle handle pressing plate 10. The needle handle fixing groove 61 fits the shape of the needle handle, and the position on the needle handle guiding groove 11 that matches the needle handle is square, providing a sliding space for the needle handle.

[0021] When synchronously assembling the syringe, the seal, and the needle handle, the robotic arm clamps the syringe on the syringe orientation groove 3, the abutting block 41 abuts against the syringe, the fixing piece 4 limits the syringe, and then the seal and the needle handle are placed on the needle handle fixing groove 61, with the seal on the far left and the needle handle on the far right. Subsequently, the fixing cylinder 9 is activated, and the telescopic rod of the fixing cylinder 9 extends to drive the needle handle pressing plate 10 to move downward. After the needle handle pressing plate 10 is in close contact with the needle handle fixing seat 6, the fixing cylinder 9 automatically pauses. The needle handle guide groove 11 cooperates with the needle handle fixing groove 61 to then enclose the seal and the needle handle. Next, the slide cylinder 2 is activated, and the telescopic rod of the slide cylinder 2 extends to drive the sliding table 21 to move to the right, driving the fixing piece 4 and the syringe to move to the right, causing the syringe to extend into the needle handle fixing groove 61, and then passing through the seal and being clamped with the needle handle. The slide cylinder 2 provides a stable thrust to ensure the precise docking between the syringe and the needle handle, avoiding the problem of non-concentricity commonly seen in traditional manual operations. When the sliding table 21 moves to the set position, the syringe is also installed. The telescopic rod of the slide cylinder 2 shortens, driving the sliding table 21 to move to the left to reset. The syringe is fixed to the needle handle and disengages from the syringe orientation groove 3. Then, the operator activates the electric slide rail 71 to drive the slider 7 to move to the left, thereby driving the movable table 5 and the needle handle fixing seat 6 to move to the left. The needle handle is limited by the needle handle fixing groove 61 and is thus pushed to move to the left, driving the syringe to move to the left. The needle handle guide groove 11 provides a sliding space for the needle handle, and the seal is abutted by the needle handle guide groove 11 and thus cannot move. As the needle handle moves to the left, it approaches the seal and then is clamped with the seal, completing the assembly of the syringe, the seal, and the needle handle. Subsequently, the telescopic rod of the fixing cylinder 9 is controlled to shorten and reset, driving the needle handle pressing plate 10 to move upward, and then no longer limiting the assembled indwelling needle assembly, so that it can be taken out. The electric slide rail 71 is controlled to rotate in the reverse direction, driving the slider 7, the movable table 5, and the needle handle fixing seat 6 to move to the right to reset. According to the above operations, the assembly work of the indwelling needle assembly can be continued. The automated process significantly shortens the assembly time of a single product and improves the production efficiency of the production line.

[0022] Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art through the present disclosure that various changes or modifications can be made to the present invention without departing from the principles and spirit scope of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, rather than to limit, the present invention, and the scope of protection is defined by the content of the claims.

Claims

1. An automatic assembly device for a disposable venous indwelling needle, characterized in that: It includes a base (1), a slide cylinder (2), a sliding table (21), a fixing piece (4), a movable table (5), a needle handle fixing seat (6), a power component and a limiting component. On the left side of the top of the base (1), a slide cylinder (2) is installed. A sliding table (21) is connected to the telescopic rod of the slide cylinder (2). In the middle of the top of the sliding table (21), a needle tube orientation groove (3) is provided. In the middle of the top of the sliding table (21), a fixing piece (4) for fixing the needle tube is installed. The movable table (5) is slidably connected to the right side of the top of the base (1). The needle handle fixing seat (6) is connected to the top of the movable table (5). A needle handle fixing groove (61) is provided on the top of the needle handle fixing seat (6). The power component is arranged on the right side of the base (1), and the limiting component is arranged at the rear of the top of the base (1).

2. The disposable intravenous indwelling needle automatic assembly device according to claim 1, characterized in that: It further includes a blocking block (41). A slidable blocking block (41) is arranged on the needle tube orientation groove (3) for blocking the needle tube.

3. The automatic assembly device for a disposable intravenous indwelling needle according to claim 2, characterized in that: The power component includes a slider (7) and an electric slide rail (71). The electric slide rails (71) are symmetrically installed on the right side of the base (1). The sliders (7) are connected to the electric slide rails (71), and the sliders (7) are connected to the movable table (5).

4. An automatic assembly device for a disposable venous indwelling needle according to claim 3, characterized in that: The limiting component includes a mounting frame (8), a fixed cylinder (9) and a needle handle pressing plate (10). The mounting frame (8) is installed at the rear of the right part of the base (1). The fixed cylinder (9) is installed on the mounting frame (8). The needle handle pressing plate (10) is connected to the telescopic rod of the fixed cylinder (9). A needle handle guiding groove (11) matching with the needle handle fixing groove (61) is provided at the bottom of the needle handle pressing plate (10).

5. An automatic assembly device for a disposable venous indwelling needle according to claim 4, characterized in that: The needle handle fixing groove (61) conforms to the shape of the needle handle, and the position on the needle handle guiding groove (11) matching with the needle handle is square to provide a sliding space for the needle handle.

6. The disposable venous indwelling needle automatic assembly device according to claim 5, characterized in that: Soft pads are padded at the four corners of the bottom of the base (1), which can improve the stability of the placement of the base (1).

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