CN214906941U

CN214906941U - A comparison device for portable fingerprint matching

Info

Publication number: CN214906941U
Application number: CN202023290257.5U
Authority: CN
Inventors: 尹艳
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-11-30
Anticipated expiration: 2030-12-30

Abstract

The utility model relates to the field of fingerprint comparison, and discloses a portable comparison device for fingerprint matching, comprising a fixing frame, a right threaded rod is threadedly connected to the middle of the right side wall of the fixing frame, and a left end of the right threaded rod is threaded. A moving frame inside the fixed frame is rotatably connected, and fixed rods are installed on the top and bottom of the left side wall of the moving frame. For the portable fingerprint matching comparison device, the right threaded rod and the top threaded rod can be rotated according to the needs of the comparison, so that the positions of the mobile frame and the fixed rod can be adjusted. In this way, the fingerprints that need to be compared and matched on the fixed rod can be adjusted. The position of the fingerprint sensor can be used for comparison and matching work, so that the comparison and matching work of fingerprints can be carried out more efficiently and accurately. The whole device does not need to use a computer to complete the comparison and matching work, and the device has a simple structure, which is not only very convenient to carry, but also easy to operate. It is also very convenient and conducive to promotion and use.

Description

Portable fingerprint matching contrast equipment

Technical Field

The utility model relates to a fingerprint contrast field specifically is a contrast equipment that portable fingerprint matching was used.

Background

Fingerprints, also called fingerprints, have a broad and narrow meaning: the narrowly defined fingerprint refers to mastoid line patterns on the skin of a first section of palm surface of a human finger; the generalized fingerprint includes finger print, finger joint print and palm print, and the fingerprint is different from fingerprint in the literal sense, i.e. the fingerprint refers to the mastoid line pattern on the skin of the palm face of the first section of the finger, and the fingerprint is the impression left by this mastoid line pattern, but in judicial practice, the notion of fingerprint and fingerprint is common.

In actual life, the application of fingerprint in criminal investigation and identity discernment aspect is very important, can accurately discern the identity of the people who leaves the fingerprint through fingerprint matching, but the fingerprint matching equipment that now commonly uses is mostly based on the computer uses, and this makes the volume of contrast equipment great relatively, carries and use comparatively troublesome. For this reason, we have devised a portable fingerprint matching comparison device.

Disclosure of Invention

The utility model provides a to prior art not enough, the utility model provides a contrast equipment that portable fingerprint matched usefulness has solved present fingerprint matching equipment commonly used, mostly uses based on the computer, and this is just so that the volume of contrast equipment is great relatively, carries and uses comparatively trouble problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a contrast equipment that portable fingerprint matching was used, includes the mount, the right side wall middle part threaded connection of mount has the right side threaded rod, the left end of right side threaded rod is rotated and is connected with the removal frame that is located the mount inside, the dead lever is all installed to the top and the bottom of removing a left side wall.

Below the sliding tray has been seted up to the bottom of dead lever, the inside sliding connection of sliding tray has the lifter plate, the bottom fixedly connected with limiting plate of lifter plate, the bottom of limiting plate extend to the outside of sliding tray and with the interior diapire sliding connection of mount.

The top sliding connection of mount has the screwed pipe, the inside threaded connection of screwed pipe has the top threaded rod, the bottom of top threaded rod is rotated with the top of the dead lever of top and is connected, the slot has all been seted up to the left and right sides at mount top, the inside sliding connection of slot has the inserted bar with the lateral wall fixed connection of screwed pipe.

Furthermore, the inner walls of the left side and the right side of the fixing frame are provided with lighting lamp strips.

Furthermore, a first adhesive strip is installed on the front surface of the fixing rod, and a second adhesive strip is installed on the back surface of the fixing frame.

Further, a handle is installed at the bottom of the fixing frame, and a sponge sleeve is sleeved outside the handle.

Furthermore, the inner bottom wall of the fixing frame is provided with a limiting groove, and the bottom of the limiting plate extends to the inside of the limiting groove and is in sliding connection with the limiting groove.

Further, the right side wall of removal frame has been seted up and has been rotated the groove, the inside rotation in rotation groove is connected with the right side rolling disc, the left end of right side threaded rod and the right side wall fixed connection of right side rolling disc, the top of dead lever is rotated and is connected with the top rolling disc, the bottom of top threaded rod and the top fixed connection of top rolling disc.

The utility model has the advantages that:

1. the utility model discloses a, according to contrast needs rotating right side threaded rod and top threaded rod, can adjust the position of removing frame and dead lever like this, can adjust the position of the fingerprint of fixing the needs contrast matching on the dead lever like this to contrast and match work, make the contrast of fingerprint match work can be more high-efficient accurate going on.

2. The utility model discloses a, whole device need not use the computer can accomplish the contrast matching work, and the device simple structure, and not only it is very convenient to carry, and it is also very convenient to operate moreover, does benefit to and uses widely.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a rear view of the present invention.

In the figure: 1. a fixed mount; 2. a right threaded rod; 3. a movable frame; 4. fixing the rod; 5. a sliding groove; 6. a lifting plate; 7. a limiting plate; 8. a top threaded rod; 9. a threaded pipe; 10. a slot; 11. inserting a rod; 12. a lighting strip; 13. a first adhesive strip; 14. a second adhesive strip; 15. a handle; 16. a limiting groove; 17. a rotating groove; 18. a right turn disc; 19. a top rotating disk.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to FIGS. 1-3: a portable fingerprint matching contrast device comprises a fixed frame 1, a handle 15 is installed at the bottom of the fixed frame 1, a sponge sleeve is sleeved outside the handle 15, the whole device can be conveniently held by arranging the handle 15, so that the whole device can be more conveniently held and used, a right threaded rod 2 is in threaded connection with the middle of the right side wall of the fixed frame 1, a movable frame 3 positioned inside the fixed frame 1 is rotatably connected with the left end of the right threaded rod 2, fixed rods 4 are installed at the top and the bottom of the left side wall of the movable frame 3, the right threaded rod 2 is rotated, the movable frame 3 and the fixed rods 4 are driven to move when the right threaded rod 2 rotates, the movable frame 3 and the fixed rods 4 can be pulled to move rightwards when the right threaded rod 2 rotates forwards, the movable frame 3 and the fixed rods 4 can be driven to move leftwards when the right threaded rod 2 rotates backwards, a contrast template is fixed on the back of the fixed frame 1, need contrast the fixing on dead lever 4 and removal frame 3 of matching, can match the fingerprint through whether coincidence of two fingerprints like this, first viscidity strip 13 is installed in the front of dead lever 4, and the back mounted of mount 1 has second viscidity strip 14, and the setting of first viscidity strip 13 and second viscidity strip 14 can be fixed the fingerprint picture of needs contrast, and fixed mode is simple more effective.

The bottom of the fixed rod 4 below is provided with a sliding groove 5, the inside of the sliding groove 5 is connected with a lifting plate 6 in a sliding way, the bottom of the lifting plate 6 is fixedly connected with a limiting plate 7, the bottom of the limiting plate 7 extends to the outside of the sliding groove 5 and is connected with the inner bottom wall of the fixed frame 1 in a sliding way, the inner bottom wall of the fixed frame 1 is provided with a limiting groove 16, the bottom of the limiting plate 7 extends to the inside of the limiting groove 16 and is connected with the limiting groove 16 in a sliding way, the movable frame 3 and the fixed rod 4 are limited by the limiting plate 7 and the limiting groove 16 when moving, so that the movable frame 3 and the fixed rod 4 can move more smoothly and stably in the left and right directions, moreover, when the height of the fixed rod 4 in the vertical direction is adjusted, the lifting plate 6 can slide in the sliding groove 5, so that the sliding of the fixed rod 4 in the vertical direction is smoother and more stable, thus, the position of the fingerprint needing to be compared and matched can be adjusted according to the position of the template fingerprint, the matching and comparison of the fingerprints can be more effectively carried out, and the accuracy of the matching and comparison of the fingerprints is ensured.

The top of the fixing frame 1 is slidably connected with a threaded pipe 9, the internal thread of the threaded pipe 9 is connected with a top threaded rod 8, the bottom end of the top threaded rod 8 is rotatably connected with the top of a fixed rod 4 above, slots 10 are formed in the left side and the right side of the top of the fixing frame 1, the internal thread of the slot 10 is slidably connected with an inserted rod 11 fixedly connected with the side wall of the threaded pipe 9, when the fixed rod 4 moves in the left direction and the right direction, the inserted rod 11 can be driven to slide in the slot 10, the stability of movement of the threaded pipe 9 is ensured, the top threaded rod 8 is rotated, when the top threaded rod 8 rotates in the threaded pipe 9, the height of the fixed rod 4 can be pushed to change, so as to adjust the height of a fingerprint needing to be compared and fixed on the fixed rod 4, the position of the fingerprint needing to be compared is adjusted according to the requirement of comparison, the precision of the comparison is ensured, the whole device can complete the comparison matching work without using a computer, and the device has simple structure, is not only very convenient to carry, but also very convenient to operate, and is beneficial to popularization and use.

As shown in fig. 1, light bar 12 is all installed to the left and right sides inner wall of mount 1, and light bar 12's setting can be followed both sides and is lighted template fingerprint and the fingerprint that needs the contrast for the shadow department of fingerprint is more obvious, can more effectively carry out fingerprint contrast and match like this.

Horizontal position and the vertical position of dead lever 4 all can be adjusted as required, the right side wall of removal frame 3 has been seted up and has been rotated groove 17, the inside rotation of rotating groove 17 is connected with right side rolling disc 18, the left end of right side threaded rod 2 and the right side wall fixed connection of right side rolling disc 18, the top of the dead lever 4 of top is rotated and is connected with top rolling disc 19, the bottom of top threaded rod 8 and the top fixed connection of top rolling disc 19, dead lever 4 ascending position about can be adjusted to rotating right side threaded rod 2, at this moment, right side rolling disc 19 is at the rotation of rotating groove 17 internal rotation, and dead lever 4 ascending position in vertical direction can be adjusted to rotating top threaded rod 8, this in-process, top rolling disc 19 is in the inside rotation of dead lever 4 of top.

To sum up, the utility model discloses when using, contrast template is fixed on the back of mount 1, needs contrast matching fix on dead lever 4 and removal frame 3, then according to contrast needs rotating right side threaded rod 2 and top threaded rod 8 again, can adjust the position of removing frame 3 and dead lever 4 like this, can adjust the position of the fingerprint of fixing on dead lever 4 needs contrast matching to contrast matching work.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A comparison device for portable fingerprint matching, comprising a fixing frame (1), characterized in that: a right threaded rod (2) is threadedly connected to the middle of the right side wall of the fixing frame (1), and the right side The left end of the threaded rod (2) is rotatably connected with a moving frame (3) located inside the fixing frame (1), and a fixing rod (4) is installed on the top and bottom of the left side wall of the moving frame (3);

A sliding groove (5) is opened at the bottom of the lower fixing rod (4), and a lifting plate (6) is slidably connected to the inside of the sliding groove (5), and the bottom of the lifting plate (6) is fixedly connected with a limit a plate (7), the bottom of the limiting plate (7) extends to the outside of the sliding groove (5) and is slidably connected with the inner bottom wall of the fixing frame (1);

A threaded pipe (9) is slidably connected to the top of the fixing frame (1), a top threaded rod (8) is threadedly connected to the inside of the threaded pipe (9), and the bottom end of the top threaded rod (8) is connected to the upper The top of the fixing rod (4) is rotatably connected, the left and right sides of the top of the fixing frame (1) are provided with slots (10), and the interior of the slot (10) is slidably connected with a threaded pipe (9) The side wall of the device is fixedly connected to the plunger (11).

2 . The portable fingerprint matching comparison device according to claim 1 , characterized in that: lighting strips ( 12 ) are installed on the inner walls of the left and right sides of the fixing frame ( 1 ). 3 .

3 . A portable fingerprint matching comparison device according to claim 1 , wherein a first adhesive strip ( 13 ) is installed on the front of the fixing rod ( 4 ), and a A second adhesive strip (14) is mounted on the back.

4 . The portable fingerprint matching comparison device according to claim 1 , wherein a handle ( 15 ) is installed on the bottom of the fixing frame ( 1 ), and a sponge is sleeved on the outside of the handle ( 15 ). 5 . set.

5. A portable fingerprint matching comparison device according to claim 1, characterized in that: a limit slot (16) is defined on the inner bottom wall of the fixing frame (1), and the limit plate (7) The bottom extends to the interior of the limiting groove (16) and is slidably connected with the limiting groove (16).

6. A portable fingerprint matching comparison device according to claim 1, characterized in that: a rotation groove (17) is formed on the right side wall of the moving frame (3), and a rotation groove (17) A right rotating disk (18) is internally connected in rotation, the left end of the right threaded rod (2) is fixedly connected with the right side wall of the right rotating disk (18), and the top of the upper fixed rod (4) rotates A top rotating disk (19) is connected, and the bottom of the top threaded rod (8) is fixedly connected with the top of the top rotating disk (19).