Puncture needle length self-checking equipment

Abstract

The utility model discloses a puncture needle length self-checking device, which belongs to the field of detection devices, and is characterized by comprising a base, the base is provided with a receding groove for placing a puncture needle, one end of the receding groove penetrates through the side wall of the base, and the other end of the receding groove is movably provided with a baffle capable of resetting automatically; the device further comprises a laser range finder electrically connected with the alarm, the laser range finder faces the baffle, manual measurement is not needed, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of detection devices, and more specifically relates to a puncture needle length self-detection device. Background Art

[0002] After manufacturing some products with high length precision requirements (such as puncture needles), it is usually necessary to self-check the length of the product before leaving the factory. The existing self-checking method is usually to compare with a ruler, resulting in very low self-checking efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a puncture needle length self-test device, which does not require manual measurement and improves the detection efficiency.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A puncture needle length self-checking device comprises a base, wherein the base is provided with a clearance groove for inserting the puncture needle, one end of the clearance groove penetrates the side wall of the base, and the other end is movably provided with a baffle that can automatically reset; and also comprises a laser rangefinder electrically connected to the alarm, wherein the laser rangefinder faces the baffle.

[0006] The advantages of this solution are at least as follows: the puncture needle is placed in the give way slot, at which time the handle end of the puncture needle is outside the give way slot, and the puncture needle is pushed toward the baffle until the handle is blocked by the base. At this time, the puncture needle will abut against the baffle and push the baffle, and the laser rangefinder measures whether the position of the baffle meets the predetermined position. If it does, the alarm sounds; conversely, if it does not, the alarm sounds, thereby determining whether the length of the puncture needle meets the standard.

[0007] The utility model is further configured as follows: the base includes a guide rail arranged along the length direction of the puncture needle, a fixed part fixed to one end of the guide rail, and a movable part movably arranged on the guide rail, the movable part is locked on the guide rail by a locking piece, and the baffle is located on the movable part.

[0008] The advantage of this solution is at least that the distance between the movable part and the fixed part can be adjusted according to puncture needles of different lengths, thereby improving the applicability of the self-testing device.

[0009] The utility model is further configured as follows: it also comprises a fixing piece which is arranged behind the movable part and has a distance from the movable part, and the fixing piece is provided with a screw micrometer connected with the movable part.

[0010] The advantage of this solution is at least that the micrometer screw can fine-tune the position of the movable part to achieve a higher precision length requirement.

[0011] The utility model is further configured as follows: the movable part comprises a base and a reset mechanism located on the base, and the reset mechanism comprises a stopper and a spring fixed between the stopper and the baffle.

[0012] The advantage of this solution is at least that: when the puncture needle abuts against the stopper, the spring is compressed; when the puncture needle is removed, the spring automatically rebounds, thereby driving the stopper to reset.

[0013] The utility model is further configured as follows: a limiting column is arranged inside the stopper toward the spring, and the limiting column penetrates into the baffle and is slidably connected with the baffle.

[0014] The advantages of this solution are at least that the limiting column can prevent the spring from falling off due to end breakage, and can also ensure the linear stability of the spring.

[0015] The utility model is further configured as follows: the reset mechanism also includes a fixed block fixed on the base, the fixed block is connected to the baffle through a guide rod, and one end of the guide rod passes through the fixed block or the baffle and is slidably connected thereto.

[0016] The advantage of this solution is at least that the guide rod can play a guiding role, thereby ensuring that the path of the baffle is on the measurement path of the laser rangefinder, thereby ensuring the distance measurement accuracy.

[0017] In summary, the utility model has at least the following advantages:

[0018] 1. By setting a clearance slot, an automatically reset baffle and a laser rangefinder electrically connected to the alarm, the puncture needle is placed in the clearance slot. At this time, the handle end of the puncture needle is located outside the clearance slot. The puncture needle is pushed toward the baffle until the handle is blocked by the base. At this time, the puncture needle will abut against the baffle and push the baffle. The laser rangefinder measures whether the position of the baffle meets the predetermined position. If it meets, the alarm sounds. Otherwise, the alarm sounds. This can also be achieved, thereby determining whether the length of the puncture needle meets the standard;

[0019] 2. By setting the base as a fixed part and a movable part and providing a screw micrometer, the distance between the two can be adjusted according to puncture needles of different lengths, thereby improving the applicability of the self-testing device;

[0020] 3. By setting a reset mechanism, when the puncture needle is against the stopper, the spring is compressed; when the puncture needle is taken out, the spring automatically rebounds, thereby driving the baffle to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of a preferred embodiment of the utility model;

[0022] Figure 2 for Figure 1A magnified schematic diagram of part A;

[0023] Figure 3 It is an overall schematic diagram of a preferred embodiment cooperating with a puncture needle.

[0024] Figure numerals: 1. base; 11. guide rail; 12. fixed part; 13. movable part; 131. base; 132. reset mechanism; 1321. block; 1322. spring; 1323. fixed block; 1324. guide rod; 2. puncture needle; 3. give way groove; 4. baffle; 5. laser rangefinder; 6. fixing piece; 7. micrometer screw; 8. limit column. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] A puncture needle length self-checking device, such as Figure 1 and Figure 2 As shown, it includes a base 1, on which a clearance groove 3 for inserting a puncture needle 2 is provided, one end of the clearance groove 3 penetrates the side wall of the base 1, and the other end is provided with a baffle 4 that can be automatically reset. Figure 2 and Figure 3 As shown, the puncture needle 2 is placed in the make way slot 3, at which time the handle end of the puncture needle 2 will be outside the make way slot 3, and the puncture needle 2 is pushed toward the baffle 4 until the handle is blocked by the base 1, at which time the puncture needle 2 will abut against the baffle 4 and push the baffle 4.

[0027] like Figure 1 and Figure 2 As shown, the self-test device also includes a laser rangefinder 5, which faces the baffle 4. The laser rangefinder 5 is electrically connected to an alarm (not shown in the figure) through a processor. The laser rangefinder 5 can measure in real time whether the position of the baffle 4 meets the predetermined position. If it does, the alarm sounds; conversely, if it does not meet, the alarm sounds, thereby determining whether the length of the puncture needle 2 meets the standard.

[0028] In some embodiments, the base 1 includes a guide rail 11 arranged along the length direction of the puncture needle 2, a fixed portion 12 fixed at one end of the guide rail 11, and a movable portion 13 movably arranged on the guide rail 11. The movable portion 13 is locked on the guide rail 11 by a locking member, and the locking member is preferably a bolt (not shown in the figure), and the bolt presses the movable portion 13 against the guide rail 11 to achieve relative fixation. The baffle 4 is movably mounted on the movable portion 13, and the spacing between the movable portion 13 and the fixed portion 12 can be adjusted according to the puncture needles 2 of different lengths, so that the self-test device is suitable for puncture needles 2 of different lengths. It is worth mentioning that the movable portion 13 can be divided into a plurality of mutually separated parts, and the positions of the plurality of parts can be adjusted on the guide rail 11 by the locking members.

[0029] In order to achieve more accurate positioning of the length of the puncture needle 2 after the position of the movable part 13 is changed, in some embodiments, the self-test device also includes a fixing part 6 arranged behind the movable part 13 and spaced apart from the movable part 13, and a micrometer screw 7 is provided on the fixing part 6, one end of the micrometer screw 7 is connected to the movable part 13, and the position of the movable part 13 can be fine-tuned by rotating the micrometer screw 7 to achieve a higher precision length requirement.

[0030] In some embodiments, the movable portion 13 includes a base 131 and a reset mechanism 132 located on the base 131, and the baffle 4 is reset by the reset mechanism 132. Specifically, the reset mechanism 132 includes a stopper 1321 fixed on the base 131, and a spring 1322 fixed between the stopper 1321 and the baffle 4. When the puncture needle 2 abuts against the stopper 1321, the spring 1322 is compressed; when the puncture needle 2 is removed, the spring 1322 automatically rebounds, thereby driving the baffle 4 to reset.

[0031] In order to improve the stability of the spring 1322, in some preferred embodiments, the stopper 1321 is provided with a limiting column 8 toward the spring 1322, and the limiting column 8 penetrates the baffle 4 and is slidably connected with the baffle 4. In other preferred embodiments, the reset mechanism 132 also includes a fixed block 1323 fixed on the base 131, and the fixed block 1323 is connected to the baffle 4 through a guide rod 1324, one end of the guide rod 1324 is fixed to the fixed block 1323 or the baffle 4, and the other end passes through the baffle 4 or the fixed block 1323 and is slidably connected thereto.

[0032] The working process and beneficial effects of the utility model are as follows: the puncture needle 2 is placed in the make way slot 3, at which time the handle end of the puncture needle 2 is located outside the make way slot 3, and the puncture needle 2 is pushed toward the baffle 4 until the handle is blocked by the base 1, at which time the puncture needle 2 will abut against the baffle 4 and push the baffle 4, and the laser rangefinder 5 measures whether the position of the baffle 4 meets the predetermined position, and if so, an alarm sounds; conversely, if not, an alarm sounds, thereby determining whether the length of the puncture needle 2 meets the standard, without the need for manual measurement, thereby improving detection efficiency.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A puncture needle length self-test device, characterized in that: The base (1) is provided with a clearance groove (3) for receiving a puncture needle (2), one end of the clearance groove (3) passes through the side wall of the base (1), and the other end is movably provided with a baffle (4) that can automatically reset; It also includes a laser rangefinder (5) electrically connected to the alarm, wherein the laser rangefinder (5) faces the baffle (4).

2. The puncture needle length self-test device according to claim 1, characterized in that: The base (1) comprises a guide rail (11) arranged along the length direction of the puncture needle (2), a fixed portion (12) fixed to one end of the guide rail (11), and a movable portion (13) movably arranged on the guide rail (11), the movable portion (13) being locked to the guide rail (11) by a locking member, and the baffle (4) being located on the movable portion (13).

3. The puncture needle length self-checking device according to claim 2, characterized in that: It also comprises a fixing member (6) arranged behind the movable part (13) and spaced apart from the movable part (13), wherein a micrometer screw (7) connected to the movable part (13) is provided on the fixing member (6).

4. The puncture needle length self-checking device according to claim 2, characterized in that: The movable part (13) comprises a base (131) and a reset mechanism (132) located on the base (131); the reset mechanism (132) comprises a stopper (1321) and a spring (1322) fixed between the stopper (1321) and the baffle (4).

5. The puncture needle length self-checking device according to claim 4, characterized in that: A limiting column (8) is provided in the stopper (1321) facing the spring (1322), and the limiting column (8) penetrates into the baffle plate (4) and is slidably connected to the baffle plate (4).

6. The puncture needle length self-checking device according to claim 4, characterized in that: The reset mechanism (132) further comprises a fixed block (1323) fixed on the base (131); the fixed block (1323) and the baffle (4) are connected via a guide rod (1324); one end of the guide rod (1324) passes through the fixed block (1323) or the baffle (4) and is slidably connected thereto.

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