A self-locking reagent card loading device

Abstract

The present invention relates to the technical field of clinical testing equipment, and discloses a self-locking reagent card loading device, including a mounting seat, a guide rail, a slide seat, a mobile jig, a hook, a swinging elastic member, a positioning card seat and a track card slot; wherein the mobile jig is arranged on the slide seat; the hook is arranged on the mobile jig through a rotating shaft and swings horizontally around the rotating shaft, and there is space for up and down movement on the rotating shaft relative to the mobile jig; the swinging elastic member is arranged between the mounting seat and the hook; the positioning card seat is arranged on the mounting seat; the track card slot is arranged on the positioning card seat; the hook can move along the unidirectional track of the track card slot to realize the self-locking and releasing action of the mobile jig. The self-locking reagent card loading device provided by the present invention does not require motor drive, and can also move the reagent card to a specified position by the mobile jig, and accurately position it, thereby avoiding the phenomenon of abnormal noise during the process of the motor driving the mobile jig.

Description

Technical Field

[0001] The present invention relates to the technical field of clinical testing equipment, and in particular to a self-locking reagent card loading device. Background Art

[0002] POCT, point-of-care testing, refers to clinical testing and bedside testing performed next to the patient. It is a new method that analyzes immediately at the sampling site, eliminating the complex processing procedures of the specimen in the laboratory test, and quickly obtains the test results. A large number of reagent cards are needed in POCT testing. Most POCT detection equipment uses a mobile fixture as a positioning and mobile carrier for the reagent card. The reagent card is moved to the corresponding detection area by means of the mobile fixture for scanning and various tests. Most of the existing technologies use a motor-driven solution to move the fixture and the reagent card. The motor-driven solution includes a guide rail, a motor, a belt (screw), a drive circuit, etc.; however, the motor-driven solution has the problem of inaccurate positioning and abnormal noise during the process of the motor-driven mobile fixture moving. Summary of the invention

[0003] The purpose of the present invention is to overcome the problems of the prior art and provide a self-locking reagent card loading device that avoids abnormal noise during the process of a motor-driven moving fixture and has precise positioning.

[0004] In order to achieve the above object, the present invention adopts the following scheme:

[0005] A self-locking reagent card loading device comprises a mounting seat;

[0006] A guide rail, which is arranged on the mounting seat;

[0007] A slide seat, which is disposed on the guide rail and reciprocates along the elongation direction of the guide rail;

[0008] A movable jig, which is arranged on the slide seat;

[0009] A hook, which is disposed on the mobile fixture via a rotating shaft and swings horizontally around the rotating shaft, and has space for moving up and down on the rotating shaft relative to the mobile fixture;

[0010] A swing elastic member, which is arranged between the mounting seat and the hook;

[0011] A positioning card seat, which is arranged on the mounting seat;

[0012] A track slot is provided on the positioning seat; the hook can move along the unidirectional track of the track slot to realize the self-locking and releasing action of the mobile fixture.

[0013] Furthermore, it also includes a baffle, an axis positioning seat, a spring push rod and a compression spring; the baffle is arranged on the mounting seat and is located at the rear end of the guide rail; the two axis positioning seats are distributed on the movable fixture along the extension direction of the guide rail; the spring push rod is sleeved on the two axis positioning seats; the spring push rod is provided with a limiting portion located between the two axis positioning seats; the compression spring is sleeved on the spring push rod and is located between the limiting portion and the axis positioning seat in front; the rear end part of the spring push rod extends out of the rear end of the axis positioning seat at the rear; the movable fixture is forced to move toward the rear end of the guide rail, and when the rear end part of the spring push rod is pressed against the baffle, the compression spring is compressed.

[0014] Further, the track slot comprises an inlet track slot section and an outlet track slot section; the inlet track slot section and the outlet track slot section form a heart-shaped track slot; the inlet track slot section has an inlet slot end; the outlet track slot section has an outlet slot start end and an outlet slot end; the position of the inlet slot end is higher than the position of the outlet slot start end; the position of the outlet slot end is higher than the position of the outlet slot start end; when the rear end portion of the spring push rod is pressed against the baffle, the hook moves into the inlet track slot section.

[0015] Furthermore, the position of the end of the inlet groove is 2 to 3 mm higher than the position of the start of the outlet groove.

[0016] Further, the approach track slot section includes an approach track initial slot section, an approach track extension slot section, an approach track turning slot section and an approach track terminal slot section which are connected in sequence; the approach track initial slot section is connected to the approach track extension slot section; the approach track extension slot section extends obliquely upward toward the right rear of the positioning card seat; the approach track turning slot section extends in a circular arc to the rear of the positioning card seat; the approach track terminal slot section includes a straight line terminal slot portion, a semicircular terminal slot portion and a turning terminal slot portion; the turning terminal slot portion includes the approach slot terminal; the straight line terminal slot portion is connected to the approach track turning slot section and extends straightly toward the rear of the positioning card seat; the straight line terminal slot portion, the semicircular terminal slot portion and the turning terminal slot portion are connected in sequence; the turning terminal extends in a circular arc to the left of the positioning card seat; when the rear end portion of the spring push rod is pressed against the baffle, the compression spring is compressed; the hook just moves into the approach track turning slot section.

[0017] Furthermore, a chamfer is provided at the beginning of the initial slot section of the feed track.

[0018] Further, the exit track slot section includes an exit track locking slot section, an exit track semicircular slot section, an exit track extension section and an exit track end slot section; the exit track locking slot section includes the exit track starting end; the exit track end slot section includes the exit track end; one end of the exit track semicircular slot section is connected to the exit track locking slot section, and the other end is connected to one end of the exit track extension section; the other end of the exit track extension section extends obliquely upward toward the front of the positioning base and is connected to the exit track end slot section; the exit track end slot section extends horizontally toward the front of the positioning base.

[0019] Furthermore, the position of the end slot section of the outgoing track is higher than the position of the initial slot section of the incoming track.

[0020] Furthermore, the hook includes a hook rocker and a hook shaft; one end of the hook rocker is arranged on the mobile jig through the rotating shaft and swings horizontally around the rotating shaft, and there is space for up and down movement on the rotating shaft relative to the mobile jig; the hook shaft is arranged on the other end of the hook rocker; the mobile jig is provided with a limit block located on the left side of the hook rocker and at the rear end of the rotating shaft; the swinging elastic member is a spring; one end of the swinging elastic member is arranged on the rear end side surface of the mobile jig and on one side of the hook, and the other end is arranged on the upper end surface of the hook rocker inclined upward.

[0021] Furthermore, a photoelectric switch is provided on one side of the rear end of the guide rail.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. The present invention manually pushes the mobile fixture, and the mobile fixture, the hook and the swinging elastic member also move on the guide rail with the slide seat. After the hook approaches the track slot, the hook is subjected to the push-pull force of the mobile fixture and the traction force of the swinging elastic member, and the swinging elastic member pulls the hook to swing in a set direction, and the hook can have space to move up and down on the rotating shaft, which is convenient for adjusting the position of the hook, so that the hook is oriented and moves smoothly along the unidirectional track of the track slot. The track slot itself forms a track structure to realize the self-locking and releasing action of the hook, thereby realizing the self-locking and releasing action of the mobile fixture. Without the need for motor drive, the reagent card can also be moved to the specified position and positioned by the mobile fixture, thereby avoiding the phenomenon of abnormal noise in the process of the motor driving the mobile fixture. At the same time, the hook moves and positions along the specified unidirectional track of the track slot, the hook cannot retreat, and it is not easy to make abnormal noise between the hook and the track slot, and the positioning is more accurate.

[0024] 2. The overall structure of the present invention is compact, occupies little space, has high reliability, and only requires a few parts to complete the operation of the reagent card. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] Figure 1 It is a three-dimensional schematic diagram of the self-locking reagent card loading device of the present invention.

[0027] Figure 2 yes Figure 1 An enlarged schematic diagram of section A is shown.

[0028] Figure 3 It is a three-dimensional schematic diagram of the positioning card seat and the track card slot of the present invention.

[0029] Figure 4 It is a top view structural schematic diagram of the positioning card seat and the track card slot of the present invention.

[0030] The figure includes:

[0031] Mounting seat 1, guide rail 2, slide seat 3, moving fixture 4, hook 5, hook swing rod 51, hook shaft 52, rotating shaft 6, swing elastic member 7, positioning card seat 8, track slot 9, entry track slot section 91, entry track initial slot section 911, entry track extension slot section 912, entry track steering slot section 913, entry track terminal slot section 914, straight line terminal slot portion 9141, semicircular terminal slot portion 9142, steering terminal slot portion 9143, entry slot terminal 91431, exit track slot section 92, exit track locking slot section 921, exit slot starting end 9211, exit track semicircular slot section 922, exit track extension section 923, exit track terminal slot 924, exit slot terminal 9241, baffle 10, shaft positioning seat 11, spring push rod 12, compression spring 13, limiting portion 14, photoelectric switch 15, limiting block 16. DETAILED DESCRIPTION

[0032] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] like Figures 1 to 4As shown, a self-locking reagent card loading device comprises a mounting seat 1, a guide rail 2, a slide seat 3, a mobile fixture 4, a hook 5, a swinging elastic member 7, a positioning card seat 8 and a track card slot 9. Among them, the guide rail 2 is arranged on the mounting seat 1; the slide seat 3 is arranged on the guide rail 2 and reciprocates along the extension direction of the guide rail 2; the mobile fixture 4 is arranged on the slide seat 3, and the mobile fixture 4 reciprocates along the extension direction of the guide rail 2 synchronously with the slide seat 3; the hook 5 is arranged on the mobile fixture 4 through a rotating shaft 6 and swings horizontally around the rotating shaft 6, and there is space for the mobile fixture 4 to move up and down on the rotating shaft 6; the swinging elastic member 7 is arranged between the mounting seat 1 and the hook 5; the positioning card seat 8 is arranged on the mounting seat 1 through a screw; the track card slot 9 is arranged on the positioning card seat 8; the hook 5 can move along the unidirectional track of the track card slot 9 to realize the self-locking and releasing action of the mobile fixture 4.

[0034] The self-locking reagent card loading device manually pushes the mobile fixture 4, and the mobile fixture 4, the hook 5 and the swing elastic member 7 also move on the guide rail 2 with the slide 3. After the hook 5 is close to the track slot 9, the hook 5 is subjected to the push-pull force of the mobile fixture 4 and the traction force of the swing elastic member 7. The swing elastic member 7 pulls the hook 5 to swing in a set direction, and the hook 5 can have space to move up and down on the rotating shaft 6, which is convenient for adjusting the position of the hook 5, so that the hook 5 is oriented and moves smoothly along the unidirectional track of the track slot 9. The track slot 9 itself forms a track structure, which is convenient for the hook 5. The hook 5 realizes the self-locking and releasing action, and then realizes the self-locking and releasing action of the mobile fixture 4. Without the need for motor drive, the reagent card can also be moved to the specified position and positioned by the mobile fixture 4, thereby avoiding the phenomenon of abnormal noise in the process of the motor driving the mobile fixture 4; at the same time, the hook 5 moves and positions along the track slot 9 in a specified unidirectional track, the hook 5 cannot move backward, and it is not easy for abnormal noise to be emitted between the hook 5 and the track slot 9, and the positioning is more accurate; at the same time, the self-locking reagent card loading device has a compact overall structure, occupies a small space, has high reliability, and only needs a few parts to complete the action of the reagent card.

[0035] The self-locking reagent card loading device also includes a baffle 10, an axis positioning seat 11, a spring push rod 12 and a compression spring 13; the baffle 10 is arranged on the mounting seat 1 and is located at the rear end of the guide rail 2; the two axis positioning seats 11 are distributed on the moving fixture 4 along the extension direction of the guide rail 2 and move synchronously with the moving fixture 4; the two axis positioning seats 11 are specifically the front axis positioning seat 11 and the rear axis positioning seat 11; the axis positioning seat 11 is arranged opposite to the baffle 10; the spring push rod 12 is sleeved on the two axis positioning seats 11; the spring push rod 12 is provided with a limiting portion 14 located between the two axis positioning seats 11; the compression spring 13 is sleeved on the spring push rod 12 and is located between the limiting portion 14 and the front axis positioning seat 11; the rear end portion of the spring push rod 12 extends out of the rear end of the rear axis positioning seat 11. By pushing the mobile fixture 4 to move toward the rear end of the guide rail 2, the shaft positioning seat 11, the spring push rod 12, the compression spring 13, the hook 5, and the swing elastic member 7 move synchronously with the mobile fixture 4 toward the rear end of the guide rail 2, when the rear end portion of the spring push rod 12 contacts and presses against the baffle 10; at this time, the hook 5 moves to the front half of the track slot 9, the spring push rod 12 is relatively static relative to the mobile fixture 4, and the limiter 14 is also relatively static with the spring push rod 12. The two shaft positioning seats 11 continue to move toward the rear end of the guide rail 2, and the compression spring 13 is compressed and accumulates potential energy under the movement of the front shaft positioning seat 11, generating a rebound force that can push the mobile fixture 4 to move toward the front end of the guide rail 2. The push-pull force of the mobile fixture 4 on the hook 5 includes the manual push of the mobile fixture 4 on the hook 5 and the rebound force of the compression spring 13 after the hand is released. After the hook 5 approaches the track slot 9, the hook 5 is subjected to the combined effects of the manual thrust of the mobile fixture 4, the rebound force of the compression spring 13 after releasing the hand, and the traction force of the swinging elastic member 7. In addition, the hook 5 has space to move up and down on the rotating shaft 6, which facilitates the adjustment of the position of the hook 5, so that the hook 5 is oriented and moves smoothly along the unidirectional track of the track slot 9. The design of the track structure formed by the track slot 9 itself can realize the self-locking and releasing actions of the hook 5, thereby realizing the self-locking and releasing actions of the mobile fixture 4.

[0036] Specifically, the hook 5 is located on the right side of the guide rail 2. The hook 5 includes a hook swing rod 51 and a hook shaft 52; one end of the hook swing rod 51 is arranged on the mobile fixture 4 through the rotating shaft 6 and swings horizontally around the rotating shaft 6, and there is space for up and down movement on the rotating shaft 6 relative to the mobile fixture 4, and the hook shaft 52 is arranged on the other end of the hook swing rod 51; the mobile fixture 4 is provided with a limit block 16 located on the left side of the hook swing rod 51 and at the rear end of the rotating shaft 6, which is used to limit the excessive swing of the hook swing rod 51; the hook shaft 52 swings synchronously with the hook swing rod 51, and the hook shaft 52 mainly moves in a unidirectional track in the track slot 9 to realize the self-locking and releasing action, thereby realizing the self-locking and releasing action of the mobile fixture 4. The swinging elastic member 7 is a spring; one end of the swinging elastic member 7 is arranged on the rear end side of the mobile fixture 4 and on one side of the hook 5, and the other end is arranged on the upper end surface of the hook swing rod 51 obliquely upward. Under the traction of the swinging elastic member 7, the hook shaft 52 always has a tendency to move downward and leftward in the track slot 9, which is convenient for the hook shaft 52 to be oriented and move smoothly along the unidirectional track of the track slot 9 to realize the self-locking and releasing action of the mobile fixture 4.

[0037] Among them, the track slot 9 includes an inlet track slot section 91 and an outlet track slot section 92; the inlet track slot section 91 and the outlet track slot section 92 form a heart-shaped track slot; the inlet track slot section 91 has an inlet slot end 91431; the outlet track slot section 92 has an outlet slot start end 9211 and an outlet slot end 9241; the position of the inlet slot end 91431 is higher than the position of the outlet slot start end 9211; the position of the outlet slot end 9241 is higher than the position of the outlet slot start end 9211; the inlet track slot section 91 serves as the front half of the track slot 9, and when the rear end part of the spring push rod 12 is pressed against the baffle 10, the hook 5 moves into the inlet track slot section 91. A heart-shaped track groove is formed by setting an inlet track slot section 91 and an outlet track slot section 92, and the position of the inlet slot end 91431 is set higher than the position of the outlet slot start end 9211, and the position of the outlet slot end 9241 is also higher than the position of the outlet slot start end 9211. The hook shaft 52 makes a one-way track motion in the heart-shaped track groove. When the hook shaft 52 enters the outlet slot start end 9211, the hook shaft 52 forms a good self-locking position at the outlet slot start end 9211, and then the hook shaft 5 is subjected to the push-pull force of the mobile fixture 4 and the traction force of the swinging elastic member 7, so that the hook shaft 52 is oriented and moves smoothly along the outlet track slot section 92 until the hook shaft 52 is separated from the track slot 9.

[0038] Preferably, the position of the end of the slot 91431 is 2 to 3 mm higher than the position of the beginning of the slot 9211. Specifically, the position of the bottom surface of the slot end 91431 is 2 to 3 mm higher than the position of the bottom surface of the slot beginning 9211. By setting the position of the end of the slot 91431 to be 2 to 3 mm higher than the position of the beginning of the slot 9211, the hook shaft 52 can be effectively restricted to prevent the hook shaft 52 from retreating, so that the hook shaft 52 can move more smoothly in the track slot 9, and at the same time, a good self-locking position can be formed for the hook shaft 52 at the beginning of the slot 9211.

[0039] The track entry slot section 91 includes a track entry initial slot section 911, a track entry extension slot section 912, a track entry turning slot section 913 and a track entry terminal slot section 914 which are connected in sequence; the track entry initial slot section 911 is connected to the track entry extension slot section 912; the track entry extension slot section 912 extends upwardly and obliquely toward the right rear of the positioning card seat 8; the track entry turning slot section 913 extends in a circular arc toward the rear of the positioning card seat 8; the track entry terminal slot section 914 includes the track entry terminal 91431; the track entry The terminal slot section 914 includes a straight terminal slot portion 9141, a semicircular terminal slot portion 9142 and a steering terminal slot portion 9143; the straight terminal slot portion 9141 is connected to the feed track steering slot section 913; the straight terminal slot portion 9141, the semicircular terminal slot portion 9142 and the steering terminal slot portion 9143 are connected in sequence; the steering terminal extends in a left arc toward the positioning seat 8; when the rear end portion of the spring push rod 12 is pressed against the baffle 10, the hook 5 just moves to the feed track steering slot section 913. The out-track slot section 92 includes an out-track locking slot section 921, an out-track semicircular slot section 922, an out-track extension section 923 and an out-track end slot section 924; the out-track locking slot section 921 includes the out-track starting end 9211; the out-track end slot section 924 includes the out-track end 9241; one end of the out-track semicircular slot section 922 is connected to the out-track locking slot section 921, and the other end is connected to one end of the out-track extension section 923; the other end of the out-track extension section 923 extends obliquely upward toward the front of the positioning base 8 and is connected to the out-track end slot section 924; the out-track end slot section 924 extends horizontally toward the front of the positioning base 8.After the hook shaft 52 approaches the track slot 9, under the action of manually pushing the moving fixture 4, the hook shaft 52 is pushed by the moving fixture 4, enters the initial slot section 911 of the entry track and moves obliquely upward along the slot wall of the initial slot section 911 of the entry track through the extended slot section 912 of the entry track. When it just enters the turning slot section 913 of the entry track, the rear end part of the spring push rod 12 is pressed against the baffle 10, the compression spring 13 is compressed, and begins to compress and accumulate potential energy, gradually generating a rebound force that can push the moving fixture 4 to move toward the front end of the guide rail 2, that is, gradually pushing the hook shaft 52 to move toward the front end of the guide rail 2. Then continue to manually push the moving fixture 4, the hook shaft 52 continues to be pushed by the moving fixture 4, and the hook shaft 52 moves in the turning slot section 913 of the entry track. The rear of the positioning base 8 makes an arc-shaped turning trajectory movement to enter the end slot section 914 of the entry trajectory. In the end slot section 914 of the entry trajectory, the hook shaft 52 passes through the straight end slot portion 9141 and the semicircular end slot portion 9142 in turn. In the straight end slot portion 9141 and the semicircular end slot portion 9142, it first makes a straight trajectory movement and then a semicircular trajectory movement until it reaches the turning end slot portion 9143. At this time, the manual thrust acting on the mobile fixture 4 is released, and then under the joint action of the compression spring 13 and the swing elastic member 7, the hook shaft 52 will move toward the lower left and make an arc-shaped turning trajectory movement until it contacts the groove wall of the exit track locking slot section 921 and stops. At this time, the positioning is completed and self-locking is achieved, that is, the self-locking action of the hook shaft 52 is achieved, and then the self-locking action of the mobile fixture 4 is achieved. When the hook shaft 52 is unlocked, the mobile fixture 4 is pushed manually again, and the hook shaft 52 continues to be pushed by the mobile fixture 4. At this time, the hook shaft 52 will enter the off-track semicircular slot section 922 from the off-track locking slot section 921 under the action of the left component force provided by the swing elastic member 7, and then move along the off-track semicircular slot section 922 to make a track movement, and move in a semicircular track until it moves to the other end of the off-track semicircular slot section 922. The manual thrust acting on the mobile fixture 4 is released, and under the action of the compression spring 13, the entire mobile fixture 4 and the hook 5 move along the front end of the guide rail 2, pass through the off-track extension section 923, and move in a straight line track obliquely upward, and then pass through the off-track end slot 924, and the straight line track movement is separated from the track slot 9. By using a heart-shaped track groove as the track card groove 9 to limit the movement trajectory of the hook shaft 52, the self-locking and releasing actions of the mobile fixture 4 can be completed smoothly and efficiently without motor drive. The reagent card can also be moved to a specified position and positioned by the mobile fixture 4, avoiding abnormal noise during the process of the motor driving the mobile fixture 4.

[0040] Preferably, the position of the end slot 924 of the outgoing track is higher than the position of the initial slot 911 of the incoming track, which is more in line with the movement trajectory of the hook shaft 52, avoiding excessive contact friction between the hook shaft 52 and the track slot 9, which affects the efficiency.

[0041] In order to make the hook shaft 52 enter the track slot 9 more quickly and easily, the starting end of the track initial slot section 911 is rounded.

[0042] A photoelectric switch 15 is provided on one side of the rear end of the guide rail 2. The position of the mobile fixture 4 is detected by setting the photoelectric switch 15, and the photoelectric switch 15 is connected with an alarm or an alarm light to warn.

[0043] The working process of the self-locking reagent card loading device is as follows:

[0044] After the hook shaft 52 approaches the track slot 9, under the action of manually pushing the moving fixture 4, the hook shaft 52 is pushed by the moving fixture 4, enters the initial slot section 911 of the entry track and moves obliquely upward along the slot wall of the initial slot section 911 of the entry track through the extended slot section 912 of the entry track. When it just enters the turning slot section 913 of the entry track, the rear end part of the spring push rod 12 is pressed against the baffle 10, the compression spring 13 is compressed, and begins to compress and accumulate potential energy, gradually generating a rebound force that can push the moving fixture 4 to move toward the front end of the guide rail 2, that is, gradually pushing the hook shaft 52 to move toward the front end of the guide rail 2. Then continue to manually push the moving fixture 4, the hook shaft 52 continues to be pushed by the moving fixture 4, and the hook shaft 52 moves in the turning slot section 913 of the entry track. The rear of the positioning base 8 makes an arc-shaped turning trajectory movement to enter the end slot section 914 of the entry trajectory. In the end slot section 914 of the entry trajectory, the hook shaft 52 passes through the straight end slot portion 9141 and the semicircular end slot portion 9142 in turn. In the straight end slot portion 9141 and the semicircular end slot portion 9142, it first makes a straight trajectory movement and then a semicircular trajectory movement until it reaches the turning end slot portion 9143. At this time, the manual thrust acting on the mobile fixture 4 is released, and then under the joint action of the compression spring 13 and the swing elastic member 7, the hook shaft 52 will move toward the lower left and make an arc-shaped turning trajectory movement until it contacts the groove wall of the exit track locking slot section 921 and stops. At this time, the positioning is completed and self-locking is achieved, that is, the self-locking action of the hook shaft 52 is achieved, and then the self-locking action of the mobile fixture 4 is achieved. When the hook shaft 52 is unlocked, the mobile fixture 4 is pushed manually again, and the hook shaft 52 continues to be pushed by the mobile fixture 4. At this time, the hook shaft 52 will enter the off-track semicircular slot section 922 from the off-track locking slot section 921 under the action of the left component force provided by the swing elastic member 7, and then move along the off-track semicircular slot section 922 to make a track movement, and move in a semicircular track until it moves to the other end of the off-track semicircular slot section 922. The manual thrust acting on the mobile fixture 4 is released, and under the action of the compression spring 13, the entire mobile fixture 4 and the hook 5 move along the front end of the guide rail 2, pass through the off-track extension section 923, and move in a straight line track obliquely upward, and then pass through the off-track end slot 924, and the straight line track movement is separated from the track slot 9.

[0045] In summary, the embodiment of the present invention provides a self-locking reagent card loading device, wherein the self-locking reagent card loading device manually pushes the moving fixture 4, and the moving fixture 4, the hook 5 and the swing elastic member 7 also move on the guide rail 2 with the slide 3. After the hook 5 approaches the track card slot 9, the hook 5 is subjected to the push-pull force of the moving fixture 4 and the traction force of the swing elastic member 7. The swing elastic member 7 pulls the hook 5 to swing in a set direction, and the hook 5 can have space to move up and down on the rotating shaft 6, which is convenient for adjusting the position of the hook 5, so that the hook 5 is oriented and moves smoothly along the unidirectional track of the track card slot 9. The card slot 9 itself forms a track structure, which realizes the self-locking and releasing action of the hook 5, and then realizes the self-locking and releasing action of the mobile fixture 4. Without the need for motor drive, the reagent card can also be moved to the specified position and positioned by the mobile fixture 4, thereby avoiding the phenomenon of abnormal noise in the process of the motor driving the mobile fixture 4; at the same time, the hook 5 moves and positions along the track card slot 9 in a specified unidirectional track, the hook 5 cannot retreat, and it is not easy to make abnormal noise between the hook 5 and the track card slot 9, and the positioning is more accurate; at the same time, the self-locking reagent card loading device has a compact overall structure, occupies a small space, has high reliability, and only needs a few parts to complete the action of the reagent card.

[0046] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims

1. A self-locking reagent card loading device, comprising a mounting seat, characterized in that: Also includes: A guide rail, which is arranged on the mounting seat; A slide seat, which is disposed on the guide rail and reciprocates along the elongation direction of the guide rail; A movable jig, which is arranged on the slide seat; A hook, which is disposed on the mobile fixture via a rotating shaft and swings horizontally around the rotating shaft, and has space for moving up and down on the rotating shaft relative to the mobile fixture; A swing elastic member, which is arranged between the mounting seat and the hook; A positioning card seat, which is arranged on the mounting seat; A track slot, which is arranged on the positioning card seat; the hook can move along the unidirectional track of the track slot to achieve the self-locking and releasing action of the mobile fixture; The hook comprises a hook swing rod and a hook shaft; one end of the hook swing rod is arranged on the mobile fixture through the rotating shaft and swings horizontally around the rotating shaft, and there is space for upward and downward movement on the rotating shaft relative to the mobile fixture; the hook shaft is arranged on the other end of the hook swing rod; The track slot comprises an in-track slot section and an out-track slot section; the in-track slot section and the out-track slot section form a heart-shaped track slot; the in-track slot section has an in-slot end; the out-track slot section has an out-slot start and an out-slot end; the position of the in-slot end is higher than the position of the out-slot start, and the position of the out-slot end is higher than the position of the out-slot start; the hook shaft performs a one-way track motion in the heart-shaped track slot, and when the hook shaft enters the out-slot start, the hook shaft forms a good self-locking position at the out-slot start.

2. The self-locking reagent card loading device according to claim 1, characterized in that: It also includes a baffle, an axis positioning seat, a spring push rod and a compression spring; the baffle is arranged on the mounting seat and is located at the rear end of the guide rail; the two axis positioning seats are distributed on the movable fixture along the extension direction of the guide rail; the spring push rod is sleeved on the two axis positioning seats; the spring push rod is provided with a limiting portion located between the two axis positioning seats; the compression spring is sleeved on the spring push rod and is located between the limiting portion and the axis positioning seat in front; the rear end part of the spring push rod extends out of the rear end of the axis positioning seat at the rear; the movable fixture is forced to move toward the rear end of the guide rail, and when the rear end part of the spring push rod is pressed against the baffle, the compression spring is compressed.

3. The self-locking reagent card loading device according to claim 2, characterized in that: When the rear end portion of the spring push rod is pressed against the baffle, the hook moves into the entry track clamping slot section.

4. The self-locking reagent card loading device according to claim 3, characterized in that: The position of the end of the inlet groove is 2 to 3 mm higher than the position of the start of the outlet groove.

5. The self-locking reagent card loading device according to claim 3, characterized in that: The approach track slot section includes an approach track initial slot section, an approach track extension slot section, an approach track turning slot section and an approach track terminal slot section which are connected in sequence; the approach track initial slot section is connected to the approach track extension slot section; the approach track extension slot section extends obliquely upward toward the right rear of the positioning card seat; the approach track turning slot section extends in a circular arc to the rear of the positioning card seat; the approach track terminal slot section includes a straight line terminal slot portion, a semicircular terminal slot portion and a turning terminal slot portion; the turning terminal slot portion includes the approach slot terminal; the straight line terminal slot portion is connected to the approach track turning slot section and extends straightly toward the rear of the positioning card seat; the straight line terminal slot portion, the semicircular terminal slot portion and the turning terminal slot portion are connected in sequence; the turning terminal extends in a circular arc to the left of the positioning card seat; when the rear end portion of the spring push rod is pressed against the baffle, the compression spring is compressed; the hook just moves into the approach track turning slot section.

6. The self-locking reagent card loading device according to claim 5, characterized in that: The starting end of the initial slot section of the feed track is rounded.

7. The self-locking reagent card loading device according to claim 5, characterized in that: The out-track slot section includes an out-track locking slot section, an out-track semicircular slot section, an out-track extension section and an out-track terminal slot section; the out-track locking slot section includes the out-track starting end; the out-track terminal slot section includes the out-track terminal; one end of the out-track semicircular slot section is connected to the out-track locking slot section, and the other end is connected to one end of the out-track extension section; the other end of the out-track extension section extends obliquely upward toward the front of the positioning card seat and is connected to the out-track terminal slot section; the out-track terminal slot section extends horizontally toward the front of the positioning card seat.

8. The self-locking reagent card loading device according to claim 7, characterized in that: The position of the end slot section of the outgoing track is higher than the position of the initial slot section of the incoming track.

9. The self-locking reagent card loading device according to claim 1, characterized in that: The movable jig is provided with a limit block located on the left side of the hook swing rod and at the rear end of the rotating shaft; the swing elastic member is a spring; one end of the swing elastic member is arranged on the rear end side surface of the movable jig and located on one side of the hook, and the other end is arranged on the upper end surface of the hook swing rod inclined upward.

10. The self-locking reagent card loading device according to claim 1, characterized in that: A photoelectric switch is arranged on one side of the rear end of the guide rail.

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