Protective cover automatic bouncing-off structure of laser blood sampling instrument

Abstract

The utility model discloses a protective cover automatic flipping structure of a laser blood sampling instrument, which comprises a shell used for installing a protective cover with a clamping groove, the shell comprises a gun head, a spring clamping piece used for being clamped in the clamping groove on the side wall of the protective cover is arranged in the gun head, and the spring clamping piece is arranged on the side wall of the protective cover. A pulling rope used for pulling the spring clamping piece to enable the spring clamping piece to move out of the clamping groove is arranged in the gun head, a bouncing-off spring used for pushing the tail end of the protective cover to enable the protective cover to be bounced out of the shell is arranged in the gun head, and when the protective cover is located in the clamping groove, the bouncing-off spring is in a compressed state. The spring clamping piece is provided with a reset spring used for enabling the spring clamping piece to reset after the protective cover is popped out. The spring clamping piece is convenient to use, and the spring clamping piece is not prone to being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of laser blood collection devices, and particularly relates to an automatic ejection structure for the protective cover of a laser blood collection device. Background Art

[0002] The laser blood collection device adopts a non-invasive blood collection method. By generating high temperature instantaneously on the skin tissue with a laser beam to vaporize a micropore, blood samples can be collected. This method does not require puncturing muscles or veins, will not cause pain and trauma, and greatly reduces the risks of infection and bleeding.

[0003] A protective cover is usually provided on the laser blood collection device to prevent blood splashing or infection, which helps to keep the blood collection site clean and avoid the risk of cross-infection.

[0004] As described in the Chinese patent application with the publication number CN217960097U for the existing laser blood collection device, a spring clip is arranged inside the gun head of the laser blood collection device to be stuck in the slot on the outer wall of the protective cover of the laser blood collection device, so as to fix the protective cover of the laser blood collection device on the gun head of the laser blood collection device.

[0005] However, for the existing laser blood collection device, one hand needs to hold the handle while the other hand grabs the protective cover and pulls it out forcefully to remove the protective cover, which is inconvenient to use and easily causes damage to the spring clip. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an automatic ejection structure for the protective cover of a laser blood collection device, which is convenient to use and not easy to damage the spring clip.

[0007] To solve the above technical problems, the utility model adopts the following scheme:

[0008] An automatic ejection structure for the protective cover of a laser blood collection device, including a housing for installing a protective cover with a slot, the housing includes a gun head, a spring clip for being stuck in the slot on the side wall of the protective cover is arranged inside the gun head, a traction rope for pulling the spring clip to move the spring clip out of the slot is arranged inside the gun head, and a pop-up spring for pushing the tail end of the protective cover to pop the protective cover out of the housing is arranged inside the gun head. In the state where the protective cover is located in the slot, the pop-up spring is in a compressed state. Its function is that through the arrangement of the traction rope and the pop-up spring, when the traction rope is pulled to move the spring clip out of the slot, the pop-up spring can directly push the protective cover to pop out, which is convenient to use and not easy to damage the spring clip.

[0009] Further, a return spring for resetting the spring clip after the protective cover is ejected is provided on the spring clip. Its function is that through the setting of the return spring, the spring clip can be reset after the protective cover is ejected, and at the same time, when the protective cover is reinstalled, the protective cover presses on the spring clip, causing the spring clip to press the return spring to compress until the spring clip snaps into the card slot, and the return spring returns a certain length to keep the spring clip in the state of being stuck in the card slot.

[0010] Further, a rotating shaft is provided in the gun head, the spring clip is sleeved on the rotating shaft, and the spring clip rotates around the rotating shaft when the traction rope pulls the spring clip. The return spring is located between the connection of the traction rope on the spring clip and the rotating shaft. When the protective cover is stuck in the housing, the axis of the return spring is coaxially arranged with the axis of the protective cover, and the axis of the rotating shaft is perpendicular to the axis of the protective cover. Its function is that through the setting of the rotating shaft, the traction rope can pull the spring clip to rotate around the rotating shaft, thereby controlling the spring clip to switch between the two states of being stuck in the card slot and being outside the card slot.

[0011] Further, a laser emitter is provided in the housing. When the protective cover is stuck in the housing, the protective cover is coaxially arranged with the laser emitter. A boss is provided at one end of the laser emitter facing the protective cover, and the ejection spring is sleeved outside the boss. The inner diameter of the ejection spring is equal to the outer diameter of the boss. Its function is that through the setting of the boss, the ejection spring can be fixed to prevent the ejection spring from shaking.

[0012] Further, a spring cavity for installing the return spring is provided in the spring clip, and the front and rear ends of the return spring are respectively located at the bottom end of the spring cavity and the front end of the laser emitter. The outer diameter of the return spring is equal to the inner diameter of the spring cavity. Its function is that through the setting of the spring cavity, the return spring can be fixed to prevent the return spring from shaking.

[0013] Further, a retaining ring for supporting the tail end of the protective cover is provided in the gun head. The two ends of the ejection spring are respectively located inside the retaining ring and the front end of the laser emitter. The tail end of the protective cover is in a conical shape with an outer diameter gradually expanding from back to front, and the inner diameter of the retaining ring is smaller than the maximum outer diameter of the tail end of the protective cover. Its function is that through the setting of the retaining ring, the tail end of the protective cover can be supported.

[0014] Further, a push rod for pulling the traction rope to move is connected to one end of the traction rope away from the spring clip. Its function is that through the setting of the push rod, the traction rope can be pulled to drive the spring clip to move.

[0015] Further, a sleeve is provided inside the housing and sleeved on the outer wall of the push rod. The traction rope is connected to the section of the push rod located inside the housing and outside the sleeve. A pressing head outside the housing is provided on the push rod. An activity cavity for the pressing head to move is provided inside the sleeve. A return spring is provided inside the activity cavity, and the two ends of the return spring are respectively located on the bottom end of the activity cavity and inside the pressing head. Its function is that the return spring can make the push rod rebound after pressing the pressing head, avoiding hindering the reset of the spring catch.

[0016] Further, at least one loop for the traction rope to pass through is provided inside the housing, and all the loops are located between the spring catch and the push rod. Its function is that by providing the loops, the path of the traction rope can be restricted.

[0017] Further, the housing includes a handle, and the push rod is provided near the handle. Its function is that through the arrangement of the push rod, it is convenient to directly press the push rod with the hand holding the handle, and the operation is convenient.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. Through the arrangement of the traction rope and the elastic spring, when the traction rope is pulled to move the spring catch out of the card slot, the elastic spring can directly push the protective cover to pop out, which is convenient to use and not easy to damage the spring catch;

[0020] 2. Through the arrangement of the reset spring, it can not only reset the spring catch after the protective cover pops out, but also when the protective cover is reinstalled, make the protective cover press on the spring catch, so that the spring catch presses the reset spring to compress until the spring catch snaps into the card slot, and the reset spring returns a certain length to keep the spring catch in the state of being stuck in the card slot. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of Embodiment 1;

[0022] Figure 2 It is Figure 1 The cross-sectional structural diagram at A-A in

[0023] Figure 3 It is Figure 2 The cross-sectional structural diagram at B-B in

[0024] Figure 4 It is Figure 3 The enlarged structural diagram at C in

[0025] Reference numerals: 1, card slot; 2, protective cover; 3, housing; 4, gun head; 5, spring clip; 6, towing rope; 7, ejection spring; 8, return spring; 9, rotating shaft; 10, laser emitter; 11, boss; 12, spring chamber; 13, retaining ring; 14, push rod; 15, sleeve; 16, pressing head; 17, movable chamber; 18, return spring; 19, collar; 20, handle. Detailed implementation mode

[0026] The following combines the embodiments and the attached drawings to further elaborate on the present utility model in detail, but the implementation modes of the present utility model are not limited thereto.

[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc. is based on the orientation or positional relationship shown in the attached drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "provided with", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Embodiment 1

[0030] An automatic ejection structure for the protective cover of a laser blood collection instrument, as Figure 1 shown, includes a housing 3 for installing a protective cover 2 with a card slot 1. The housing 3 includes a gun head 4. Inside the gun head 4, there is a spring clip 5 for being stuck in the card slot 1 on the side wall of the protective cover 2. Inside the gun head 4, there is a towing rope 6 for pulling the spring clip 5 to move the spring clip 5 out of the card slot 1. Inside the gun head 4, there is an ejection spring 7 for pushing the tail end of the protective cover 2 to eject the protective cover 2 out of the housing 3. When the protective cover 2 is in the state of being in the card slot 1, the ejection spring 7 is in a compressed state. Its function is that through the setting of the towing rope 6 and the ejection spring 7, when the towing rope 6 is pulled to move the spring clip 5 out of the card slot 1, the ejection spring 7 can directly push the protective cover 2 to eject, which is convenient to use and not easy to damage the spring clip 5.

[0031] Specifically, as Figure 3 shown, a return spring 8 for resetting the spring clip 5 after the protective cover 2 is ejected is provided on the spring clip 5. Its function is that through the setting of the return spring 8, the spring clip 5 can be reset after the protective cover 2 is ejected, and at the same time, when the protective cover 2 is reinstalled, the protective cover 2 presses on the spring clip 5, causing the spring clip 5 to press the return spring 8 to compress until the spring clip 5 snaps into the card slot 1, and the return spring 8 returns a certain length to keep the spring clip 5 in the state of being stuck in the card slot 1.

[0032] Specifically, as Figure 4 shown, a rotating shaft 9 is provided in the gun head 4, the spring clip 5 is sleeved on the rotating shaft 9, and when the traction rope 6 pulls the spring clip 5, the spring clip 5 rotates around the rotating shaft 9. The return spring 8 is located between the connection point of the traction rope 6 on the spring clip 5 and the rotating shaft 9. In the state where the protective cover 2 is stuck in the housing 3, the axis of the return spring 8 is coaxially arranged with the axis of the protective cover 2, and the axis of the rotating shaft 9 is perpendicular to the axis of the protective cover 2. Its function is that through the setting of the rotating shaft 9, the traction rope 6 can pull the spring clip 5 to rotate around the rotating shaft 9, thereby controlling the spring clip 5 to switch between the two states of being stuck in the card slot 1 and being outside the card slot 1.

[0033] Specifically, as Figure 4 shown, a laser emitter 10 is provided in the housing 3. In the state where the protective cover 2 is stuck in the housing 3, the protective cover 2 is coaxially arranged with the laser emitter 10. A boss 11 is provided at one end of the laser emitter 10 facing the protective cover 2, and the ejection spring 7 is sleeved outside the boss 11. The inner diameter of the ejection spring 7 is equal to the outer diameter of the boss 11. Its function is that through the setting of the boss 11, the ejection spring 7 can be fixed to prevent the ejection spring 7 from shaking.

[0034] Specifically, as Figure 4 shown, a spring cavity 12 for installing the return spring 8 is provided in the spring clip 5. The front and rear ends of the return spring 8 are respectively located at the bottom end of the spring cavity 12 and the front end of the laser emitter 10. The outer diameter of the return spring 8 is equal to the inner diameter of the spring cavity 12. Its function is that through the setting of the spring cavity 12, the return spring 8 can be fixed to prevent the return spring 8 from shaking.

[0035] Specifically, as Figure 4As shown, a retaining ring 13 for supporting the tail end of the protective cover 2 is provided inside the gun head 4. The two ends of the dropping spring 7 are respectively located inside the retaining ring 13 and on the front end of the laser emitter 10. A stepped surface for preventing the retaining ring 13 from falling off is provided on the gun head 4. The tail end of the protective cover 2 is in a conical shape with an outer diameter gradually increasing from the rear to the front. The inner diameter of the retaining ring 13 is smaller than the maximum outer diameter of the tail end of the protective cover 2, and the retaining ring 13 is coaxially arranged with the protective cover 2. Its function is that through the setting of the retaining ring 13, the tail end of the protective cover 2 can be supported.

[0036] Specifically, as Figure 4 shown, a push rod 14 for pulling the traction rope 6 to move is connected to one end of the traction rope 6 away from the spring clip 5. Its function is that through the setting of the push rod 14, the traction rope 6 can be pulled to drive the spring clip 5 to move.

[0037] Specifically, as Figure 3 shown, a sleeve 15 sleeved on the outer wall of the push rod 14 is provided inside the housing 3. The traction rope 6 is connected to the section of the push rod 14 located inside the housing 3 and outside the sleeve 15. A pressing head 16 outside the housing 3 is provided on the push rod 14. An activity cavity 17 for the pressing head 16 to move is provided inside the sleeve 15. A return spring 18 is provided inside the activity cavity 17. The two ends of the return spring 18 are respectively located on the bottom end of the activity cavity 17 and inside the pressing head 16. Its function is that through the setting of the return spring 18, the push rod 14 can rebound after pressing the pressing head 16, avoiding hindering the reset of the spring clip 5.

[0038] Specifically, as Figure 1 shown, two loop rings 19 for the traction rope 6 to pass through are provided inside the housing 3. All the loop rings 19 are located between the spring clip 5 and the push rod 14. The distance between the loop ring 19 and the housing 3 is smaller than the distance between the connection of the traction rope 6 on the push rod 14 and the housing 3. Its function is that through the setting of the loop ring 19, the path of the traction rope 6 can be restricted.

[0039] Specifically, as Figure 1 shown, the housing 3 includes a handle 20, and the push rod 14 is arranged near the handle 20. Its function is that through the setting of the push rod 14, it is convenient to directly press the push rod 14 with the hand holding the handle 20, and the operation is convenient.

[0040] The working principle of this embodiment is described as follows: The two ends of the traction rope 6 are respectively tied to the spring clip 5 and the push rod 14, and the middle section of the traction rope 6 passes through the two loop rings 19;

[0041] When the protective cover 2 needs to be installed, insert the protective cover 2 into the gun head 4, so that the protective cover 2 abuts against the retaining ring 13. The protective cover 2 presses on the retaining ring 13, causing the retaining ring 13 to press against the ejection spring 7, thus making the ejection spring 7 in a compressed state. When the protective cover 2 penetrates to a certain distance, the return spring 8 pushes the spring clip 5 to engage in the card slot 1 of the protective cover 2;

[0042] When the protective cover 2 needs to be removed, press the pressing head 16 with one of the fingers of the hand holding the handle 20, so that the push rod 14 pulls the traction rope 6. The traction rope 6 pulls the spring clip 5 to move, causing the spring clip 5 to move out of the card slot 1 while compressing the return spring 8. The ejection spring 7 pushes the retaining ring 13 to move, and the retaining ring 13 pushes the protective cover 2 to eject;

[0043] After the protective cover 2 ejects, release the push rod 14 pressing on the pressing head 16. The return spring 18 gradually returns, so that the end of the pressing head 16 is located outside the housing 3, and the return spring 8 pushes the spring clip 5 to reset.

[0044] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Based on the technical essence of the present invention, any simple modification, equivalent replacement, and improvement made to the above embodiments within the spirit and principle of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A protective cover (2) automatic drop structure of a laser blood collection instrument, comprising a housing (3) for mounting the protective cover (2) with a card slot (1), characterized in that: The housing (3) comprises a gun head (4), wherein a spring clamp (5) is provided in the gun head (4) for clamping in a clamping groove (1) on the side wall of the protective cover (2), wherein a traction rope (6) is provided in the gun head (4) for pulling the spring clamp (5) so that the spring clamp (5) is moved out of the clamping groove (1), and wherein a drop spring (7) is provided in the gun head (4) for pushing the rear end of the protective cover (2) so that the protective cover (2) is ejected out of the housing (3), wherein when the protective cover (2) is located in the clamping groove (1), the drop spring (7) is in a compressed state.

2. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 1 is characterized in that: The spring clamp (5) is provided with a return spring (8) for returning the spring clamp (5) to its original position after the protective cover (2) is ejected.

3. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 2 is characterized in that: A rotating shaft (9) is arranged inside the gun head (4), and a spring clamp (5) is sleeved on the rotating shaft (9). When the traction rope (6) pulls the spring clamp (5), the spring clamp (5) rotates around the rotating shaft (9), and a reset spring (8) is located between the connection point of the traction rope (6) on the spring clamp (5) and the rotating shaft (9).

4. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 3 is characterized by: A laser emitter (10) is arranged in the shell (3); when the protective cover (2) is stuck in the shell (3), the protective cover (2) and the laser emitter (10) are coaxially arranged; a boss (11) is arranged at one end of the laser emitter (10) facing the protective cover (2); and a drop spring (7) is sleeved outside the boss (11).

5. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 4, characterized in that: The spring clamp (5) is provided with a spring cavity (12) for housing a return spring (8), and the front and rear ends of the return spring (8) are respectively located at the bottom end of the spring cavity (12) and the front end of the laser emitter (10).

6. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 4, characterized in that: A retaining ring (13) for supporting the rear end of the protective cover (2) is arranged inside the gun head (4), and two ends of the drop spring (7) are respectively located inside the retaining ring (13) and on the front end of the laser emitter (10).

7. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 1, characterized in that: One end of the traction rope (6) away from the spring clamp (5) is connected to a push rod (14) for pulling the traction rope (6) to move.

8. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 7, characterized in that: The housing (3) is provided with a sleeve (15) which is lassoed on the outer wall of the push rod (14); the traction rope (6) is connected to a section of the push rod (14) which is located inside the housing (3) and outside the sleeve (15); the push rod (14) is provided with a pressing head (16) outside the housing (3); the sleeve (15) is provided with an active cavity (17) for the pressing head (16) to move; a rebound spring (18) is provided in the active cavity (17); and two ends of the rebound spring (18) are respectively located on the bottom end of the active cavity (17) and inside the pressing head (16).

9. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 7, characterized in that: At least one collar (19) for the traction rope (6) to pass through is arranged in the housing (3), and all collars (19) are located between the spring clamp (5) and the push rod (14).

10. The automatic drop structure of the protective cover (2) of the laser blood collection instrument according to claim 7, characterized in that: The housing (3) comprises a handle (20), and the push rod (14) is arranged adjacent to the handle (20).

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