Interface locking device

Abstract

This utility model provides an interface locking device, relating to the field of medical device technology. The interface locking device has a device housing installed at the end of the lock housing, and a ball-head plunger installed on the device housing. A running groove and a stopping groove are formed on the end face of the lock cylinder. When the lock cylinder rotates to the running position, the ball head of the plunger is pushed into the running groove, effectively positioning the lock cylinder and preventing it from rotating during operation. When the lock cylinder is in the stopping position, the ball head of the plunger is pushed into the stopping groove, effectively positioning the lock cylinder and preventing it from rotating when stopped. This enhances the positioning stability of the lock cylinder and avoids accidental rotation of the lock cylinder.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an interface locking device. Background Technology

[0002] Interface locking devices are frequently used for connecting tubing in medical water jets. For example, the tubing between the piston pump and the end of the water jet head is connected and locked using an interface locking device. An interface locking device typically includes a lock housing, a lock cylinder, and a non-circular locking block. The lock cylinder rotates freely along its axis within the lock housing. The lock housing and the head of the lock cylinder each have a through hole and a slot that match the shape of the locking block. The locking block is inserted through the through hole into the slot, driving the lock cylinder to rotate. This causes the locking block to misalign with the through hole, locking the locking block and the lock cylinder. The tubing on the axis of the locking block connects with the tubing on the axis of the lock cylinder, achieving interface connection and locking.

[0003] Currently, most medical water jet interface locking devices use magnetic attraction to position the lock cylinder and lock housing to determine the rotation angle. However, the high-frequency, high-vibration operation of the water jet causes insufficient magnetic attraction, frequently resulting in the lock cylinder rotating unexpectedly, causing the machine to stop or even the lock block to fall off. Furthermore, when the machine is stopped, the absence of the lock block allows the lock cylinder to rotate during transportation or due to unexpected vibrations, causing the through hole and slot to malfunction and preventing the lock block from being inserted. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an interface locking device that solves the problem of weak positioning stability of the lock core in medical water jet interface locking devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An interface locking device, the interface locking device comprising: a lock housing, a lock cylinder, and a ball-head plunger;

[0007] The outer wall of the lock cylinder is connected to the inner wall of the lock shell by a bearing; the head end of the lock shell has a non-circular through hole, and the head end of the lock cylinder has a groove that matches the shape of the through hole;

[0008] The end of the lock housing is connected and fixed to the equipment housing. The equipment housing has a positioning groove, and the ball-head plunger is installed in the positioning groove.

[0009] The end face of the lock cylinder is provided with a running groove and a stopping groove; when the lock cylinder is in the running position, the ball head of the ball plunger is pushed into the running groove; when the lock cylinder is in the stopping position, the ball head of the ball plunger is pushed into the stopping groove.

[0010] Preferably, the through hole is an elliptical hole.

[0011] Preferably, the ball-head plunger comprises: a ball head, a spring, and a plunger housing;

[0012] The plunger housing is installed in the positioning groove, the ball head is installed at the open end of the plunger housing, and the spring is installed inside the plunger housing to provide the ball head with an outward pushing force.

[0013] Preferably, the outer wall of the plunger housing is provided with external threads, the inner wall of the positioning groove is provided with internal threads, and the plunger housing and the positioning groove are threadedly connected.

[0014] Preferably, the open end of the plunger housing has an axially extending slit.

[0015] Preferably, a photoelectric sensor is installed on the lock housing, and a lever is provided on the outer wall of the lock cylinder; when the lock cylinder is in the stop position, the lever blocks the beam propagation path of the photoelectric sensor; when the lock cylinder is in the running position, the lever just moves away from the beam propagation path of the photoelectric sensor.

[0016] Preferably, the equipment housing is a piston pump housing, and the lock housing is connected to the equipment housing flange; a guide hole is provided on the axis of the lock core, and the slot is connected to the water outlet of the equipment housing through the guide hole.

[0017] This invention provides an interface locking device. Compared with the prior art, it has the following advantages:

[0018] In this invention, the interface locking device has a device housing installed at the end of the lock housing, and a ball-head plunger installed on the device housing. A running groove and a stopping groove are formed on the end face of the lock cylinder. When the lock cylinder rotates to the running position, the ball head of the ball-head plunger is pushed into the running groove, effectively positioning the lock cylinder and preventing it from rotating during operation. When the lock cylinder is in the stopping position, the ball head of the ball-head plunger is pushed into the stopping groove, effectively positioning the lock cylinder and preventing it from rotating when stopped. This enhances the positioning stability of the lock cylinder and avoids accidental rotation of the lock cylinder. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a top-view exploded axonometric view of the interface locking device in this embodiment of the present invention.

[0021] Figure 2 This is an exploded axonometric view of the interface locking device in an embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the interface locking device in an embodiment of the present invention.

[0023] Figure 4 This is an exploded view of the interface locking device when the lock cylinder is in the stop position in this embodiment of the present invention.

[0024] Figure 5 This is an exploded view of the interface locking device when the lock cylinder is in the running position in an embodiment of this utility model.

[0025] The reference numerals in the figure are set as follows: lock housing 10, through hole 11, lock cylinder 20, slot 21, running groove 22, stopping groove 23, paddle 24, guide hole 25, ball head plunger 30, ball head 31, spring 32, plunger housing 33, equipment housing 40, positioning groove 41, water outlet 42, photoelectric sensor 50. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] This application provides an interface locking device, which solves the problem of weak positioning stability of the lock core in a medical water jet interface locking device.

[0028] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0029] Example:

[0030] like Figures 1-5 As shown, this utility model provides an interface locking device, which includes: a lock housing 10, a lock cylinder 20, and a ball-head plunger 30;

[0031] The outer wall of the lock cylinder 20 is connected to the inner wall of the lock shell 10 by a bearing, so that the lock cylinder 20 can rotate freely along the axis inside the lock shell 10; the lock shell 10 has a non-circular through hole 11 at the head end, and the lock cylinder 20 has a groove 21 at the head end that matches the shape of the through hole 11.

[0032] The end of the lock housing 10 is connected and fixed to the equipment housing 40. The equipment housing 40 has a positioning groove 41, and the ball-head plunger 30 is installed in the positioning groove 41.

[0033] The end face of the lock cylinder 20 is provided with a running groove 22 and a stopping groove 23. After the lock block passes through the through hole 11, it is inserted into the slot 21, driving the lock cylinder 20 to rotate to the running position by a specified angle. The slot 21 is misaligned with the through hole 11, locking the lock block in the slot 21. The ball head 31 of the ball plunger 30 is pushed into the running groove 22, effectively positioning the lock cylinder 20 and preventing it from rotating during operation. When the slot 21 is aligned with the through hole 11, the lock cylinder 20 is in the stopping position, and the ball head 31 of the ball plunger 30 is pushed into the stopping groove 23, effectively positioning the lock cylinder 20 and preventing it from rotating when stopped.

[0034] like Figures 1-3 As shown, the through hole 11 is an elliptical hole.

[0035] like Figure 1 As shown, the ball-head plunger 30 includes: a ball head 31, a spring 32, and a plunger housing 33;

[0036] The plunger housing 33 is installed in the positioning groove 41, the ball head 31 is installed at the open end of the plunger housing 33, and the spring 32 is installed in the plunger housing 33 to provide the ball head 31 with an outward pushing force.

[0037] The outer wall of the plunger housing 33 is provided with external threads, and the inner wall of the positioning groove 41 is provided with internal threads. The plunger housing 33 is threadedly connected to the positioning groove 41, which facilitates the adjustment of the installation depth of the plunger housing 33.

[0038] The plunger housing 33 has an axially extending slit at its open end. By pressing down the ball head 31 with a screwdriver and inserting it into the slit, the plunger housing 33 can be driven to rotate.

[0039] like Figures 1-5 As shown, a photoelectric sensor 50 is installed on the lock housing 10, and a lever 24 is provided on the outer wall of the lock cylinder 20. When the lock cylinder 20 is in the stop position, the lever 24 blocks the beam propagation path of the photoelectric sensor 50. At this time, the safety switch of the medical water jet is closed, and the water jet cannot start running. When the lock cylinder 20 is in the running position, the lever 24 just moves away from the beam propagation path of the photoelectric sensor 50. At this time, the safety switch of the medical water jet is opened, and the water jet can start running.

[0040] like Figures 1-5 As shown, the equipment housing 40 is a piston pump housing, and the lock housing 10 is connected to the flange of the equipment housing 40; a guide hole 25 is provided on the axis of the lock core 20, and the slot 21 is connected to the outlet 42 of the equipment housing 40 through the guide hole 25.

[0041] A flow channel is opened on the axis of the locking block, and the slot 21 is connected to the pipeline at the end of the water cutter head through the flow channel to provide water flow to the water cutter head.

[0042] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0043] In this embodiment of the utility model, the interface locking device has a device housing 40 installed at the end of the lock housing 10, and a ball-head plunger 30 installed on the device housing 40. The end face of the lock cylinder 20 has a running groove 22 and a stopping groove 23. When the lock cylinder 20 rotates to the running position, the ball head 31 of the ball-head plunger 30 is pushed into the running groove 22 to effectively position the lock cylinder 20 and prevent it from rotating during operation. When the lock cylinder 20 is in the stopping position, the ball head 31 of the ball-head plunger 30 is pushed into the stopping groove 23 to effectively position the lock cylinder 20 and prevent it from rotating when stopped. This enhances the positioning stability of the lock cylinder 20 and avoids the situation of accidental rotation of the lock cylinder 20.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An interface locking device, characterized in that, The interface locking device includes: a lock housing (10), a lock cylinder (20), and a ball-head plunger (30); The outer wall of the lock cylinder (20) is connected to the inner wall of the lock shell (10) by a bearing; the head end of the lock shell (10) is provided with a non-circular through hole (11), and the head end of the lock cylinder (20) is provided with a slot (21) that matches the shape of the through hole (11); The end of the lock housing (10) is connected and fixed to the equipment housing (40). The equipment housing (40) has a positioning groove (41), and the ball head plunger (30) is installed in the positioning groove (41). The lock cylinder (20) has a running groove (22) and a stopping groove (23) on its end face. When the lock cylinder (20) is in the running position, the ball head (31) of the ball plunger (30) is pushed into the running groove (22). When the lock cylinder (20) is in the stopping position, the ball head (31) of the ball plunger (30) is pushed into the stopping groove (23).

2. The interface locking device of claim 1, wherein, The through hole (11) is an elliptical hole.

3. The interface locking device of claim 1, wherein, The ball-head plunger (30) includes: a ball head (31), a spring (32), and a plunger housing (33); The plunger housing (33) is installed in the positioning groove (41), the ball head (31) is installed at the open end of the plunger housing (33), and the spring (32) is installed in the plunger housing (33) to provide the ball head (31) with an outward pushing force.

4. The interface locking device of claim 3, wherein, The outer wall of the plunger shell (33) is provided with external threads, and the inner wall of the positioning groove (41) is provided with internal threads. The plunger shell (33) and the positioning groove (41) are threadedly connected.

5. The interface locking device of claim 3, wherein, The open end of the plunger housing (33) has an axially extending cut.

6. The interface locking device of claim 1, wherein, A photoelectric sensor (50) is installed on the lock housing (10), and a lever (24) is provided on the outer wall of the lock cylinder (20). When the lock cylinder (20) is in the stop position, the lever (24) blocks the beam propagation path of the photoelectric sensor (50). When the lock cylinder (20) is in the running position, the lever (24) just moves away from the beam propagation path of the photoelectric sensor (50).

7. The interface locking device of claim 1, wherein, The equipment housing (40) is a piston pump housing, and the lock housing (10) is connected to the flange of the equipment housing (40); a guide hole (25) is provided on the axis of the lock core (20), and the slot (21) is connected to the outlet (42) of the equipment housing (40) through the guide hole (25).

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