A positioning mechanism for detecting salmonella abortus equi live vaccine and a method of using the same

Abstract

The application relates to a positioning mechanism for detecting a Salmonella abortus equi live vaccine and a use method thereof, and belongs to the technical field of vaccine detection. The positioning component is provided, the positioning part in the positioning component can position the vaccine bottle, the vaccine bottle can be directly placed in the positioning part during use, alignment is not needed, the detection efficiency is improved, and the positioning mechanism is convenient to use. The positioning mechanism is provided, the positioning mechanism can meet the use requirement of manually placing the vaccine bottle through cooperation of the positioning part and the adjusting part, the carrying part is separated from the positioning support, the positioning part is separated from the adjusting part, the positioning support is loaded on the adjusting part, the positioning part is separated and loaded on the two positioning supports, the switching of the mechanism form can be completed, the adjusting part and the positioning support are matched with each other, the positioning part can be driven to expand or shrink, the vaccine bottle conveyed through the conveying belt can be positioned, and the functionality of the mechanism is improved.

Description

TECHNICAL FIELD

[0001] The application relates to a positioning mechanism for detecting a Salmonella abortus equi live vaccine and a use method thereof, and belongs to the technical field of vaccine detection. BACKGROUND

[0002] Salmonella is susceptible to initial pregnancy of a horse, mainly causes abortion in the late gestation period, and most horses have no obvious clinical symptoms before abortion, suddenly abort, and most of the aborted fetuses are dead, and a small number of surviving fetuses also die after being born for several days, when a pregnant mare aborts, pathogenic bacteria are discharged out of the body with the aborted fetus, fetal membranes, amniotic fluid and vaginal secretions, and a diseased stallion can discharge the bacteria with semen, and a horse infected with Salmonella abortus equi often becomes a pathogen carrier of the bacteria and is also generally considered to be the initial source of infection in a non-vaccine area.

[0003] During the production process, other liquid medicines need to be added for detection, for example, the Chinese utility model patent CN202120335353.2 discloses a vaccine sample detection device, and the specification discloses that the actual capacity of the adding pipe can be changed by adjusting the position of the second piston, the sleeve and the adding pipe are in position correspondence and have the same inner diameter, the first piston can enter the adding pipe from the sleeve, the liquid tank in the sleeve is provided with a liquid inlet groove, and the liquid in the liquid tank can flow into the adding pipe, at the same time, the internal pressure of the adding pipe cannot be increased to press the liquid in the adding pipe out before the first piston enters the adding pipe, when the first piston enters the adding pipe, the adding pipe is closed, so that the liquid in the adding pipe is squeezed out, thereby realizing the purpose of quantitative addition of liquid medicine, and after the first piston returns, the liquid in the liquid tank can flow into the adding pipe for replenishment, and the adding pipe can be repeatedly used.

[0004] However, the above patent lacks a positioning function, and it is necessary to spend time to align when placing the vaccine bottle below the liquid discharge pipe, thereby affecting the detection efficiency.

[0005] Therefore, we improve it and propose a positioning mechanism for detecting a Salmonella abortus equi live vaccine and a use method thereof. SUMMARY

[0006] (I) The technical problem solved by the present application is that there is a lack of positioning of the vaccine bottle, and it is necessary to spend time to align when placing the vaccine bottle.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of the application, the positioning mechanism for detecting Salmonella abortus equi live vaccine is provided, which comprises a positioning support structure, the positioning support structure comprises two positioning support pieces, a positioning assembly is arranged between the two positioning support pieces, the positioning assembly comprises a bearing part arranged between the two positioning support pieces, an adjusting part is arranged on the bearing part, and a positioning part is arranged on the adjusting part.

[0009] The positioning support piece comprises a positioning support frame, an arc-shaped groove is arranged on the inner wall on the two sides of a fixing groove formed at one end of the positioning support frame.

[0010] The other end of the positioning support frame is provided with a first threaded groove, and limit grooves are arranged on the two sides of the end of the positioning support frame close to the first threaded groove.

[0011] The bearing part comprises a bearing seat in contact with the inner side of the positioning support frame, a groove is formed at the top of one end of the bearing seat, a cavity is arranged below the groove in the bearing seat, a connecting rod is in transmission connection in the cavity, the top end of the connecting rod extends into the groove through the cavity and is fixedly connected with a connecting seat, and a connecting shaft is fixedly installed in the middle of the connecting seat.

[0012] The outer surface of the connecting rod is sleeved with a spring in the cavity, and the two ends of the spring are in contact with the connecting rod and the cavity respectively.

[0013] The outer surface of the connecting shaft is rotatably connected with a connecting head, the two sides of the connecting head are in contact with the inner walls on the two sides of the connecting seat, two support plates are fixedly installed on one side of the top of the connecting head, and notches are formed in the top and the bottom of the side close to each other of the two support plates.

[0014] The top of the two support plates is fixedly connected with a motor, a bidirectional screw rod is arranged between the output shaft of the motor and the connecting head, and the position corresponding to the notch on the outer surface of the bidirectional screw rod is a non-threaded structure.

[0015] The positioning part comprises two connecting blocks slidably connected between the two support plates, a second threaded groove is formed in the side close to each other of the two connecting blocks, and the connecting block is in threaded connection with the bidirectional screw rod through the second threaded groove.

[0016] One end of each of the two connecting blocks is fixedly installed with a positioning plate, a plurality of positioning grooves are formed in the side close to each other of the two positioning plates, a connecting groove is formed in the side away from each other of the two positioning plates, and arc-shaped protrusions are fixedly installed on the top and the bottom of the two connecting grooves.

[0017] A method for using a positioning mechanism for detecting Salmonella equine abortion live vaccine, comprising a positioning mechanism for detecting Salmonella equine abortion live vaccine, further comprising:

[0018] S1, positioning when manually placing the vaccine bottle: first separate the positioning support structure from the positioning assembly, fix the positioning support frame in the corresponding position by screwing into the arc-shaped groove, start the motor, rotate the bidirectional screw rod driven by the motor, and adjust the height of the positioning plate according to the actual situation, and then place the vaccine bottle in the positioning groove.

[0019] S2, positioning the vaccine bottle conveyed by the conveyor belt: start the motor, rotate the bidirectional screw rod driven by the motor, and lower the two connecting blocks so that the connecting blocks are located in the notch, then pull the positioning plate to pull the connecting blocks out of the notch, pull the support plate upward to separate the connecting seat from the groove, then rotate the connecting seat by one hundred and eighty degrees around the connecting rod, and then place the connecting seat in the groove and rotate the support plate around the connecting shaft to be horizontal; fix the bearing seat below the belt conveyor by screwing through the mounting hole on the bearing seat, and then insert the end of the positioning support frame provided with the first threaded groove into the notch, start the motor and push the positioning support frame so that the first threaded groove is screwed together with the bidirectional screw rod, and at this time the two positioning plates are located above the belt conveyor;

[0020] When the vaccine bottle is conveyed to the space between the two positioning plates by the conveyor belt in the belt conveyor, rotate the bidirectional screw rod driven by the motor to make the two positioning support frames drive the two positioning plates to approach each other, and clamp and position the vaccine bottle through the cooperation of the two positioning plates and the plurality of positioning grooves, and after the liquid addition is completed, rotate the bidirectional screw rod driven by the motor to make the two positioning support frames drive the two positioning plates to move away from each other.

[0021] (Three) beneficial effects

[0022] The positioning mechanism for detecting Salmonella equine abortion live vaccine and the use method thereof have the beneficial effects that:

[0023] 1. The positioning component is provided, and the positioning part in the positioning component can position the vaccine bottle, so that the vaccine bottle can be directly placed in the positioning part during use, without the need to spend time on alignment, thereby improving the detection efficiency and being beneficial to use.

[0024] 2. The positioning component is provided, and the adjusting part in the positioning component can adjust the height of the positioning part, thereby adapting to different vaccine bottles and improving the application range.

[0025] 3. Through the setting of the positioning mechanism, the positioning mechanism can meet the use demand of manually placing the vaccine bottle through the cooperation of the positioning part and the adjusting part. By separating the bearing part from the positioning support, separating the positioning part from the adjusting part, loading the positioning support on the adjusting part, and then loading the positioning part on the two positioning supports respectively, the switching of the mechanism form can be completed. Through the cooperation of the adjusting part and the positioning support, the positioning part can be driven to expand or shrink, so that the vaccine bottle conveyed by the conveying belt can be positioned, and the functionality of the mechanism is improved;

[0026] 4. Through the setting of the positioning mechanism, the positioning support structure and the bearing part are designed to be separable when manually placing the vaccine bottle. The two positioning supports in the positioning support structure can position the bearing part, so as to facilitate the taking and placing of the positioning assembly. When conveying the vaccine bottle by the conveying belt, the two positioning supports in the positioning support structure can support and drive the positioning part, so as to improve the functionality of the positioning support structure. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 The structural schematic diagram of the positioning mechanism for detecting Salmonella abortus equi live vaccine provided by the present application is shown.

[0029] Figure 2 The schematic diagram of the positioning support structure provided by the present application is shown.

[0030] Figure 3 The structural schematic diagram of the first threaded groove provided by the present application is shown.

[0031] Figure 4 The structural schematic diagram of the positioning assembly provided by the present application is shown.

[0032] Figure 5 The side view cut structure schematic diagram of the bearing seat provided by the present application is shown.

[0033] Figure 6 The structural schematic diagram of the notch provided by the present application is shown.

[0034] Figure 7 The structural schematic diagram of the positioning plate provided by the present application is shown.

[0035] Figure 8A structure diagram of a positioning mechanism for detecting Salmonella equine abortion live vaccine provided by the application is shown when the vaccine bottle conveyed by the conveying belt is positioned.

[0036] Figure 9 A structure diagram of the connection between the positioning support frame and the positioning plate provided by the application is shown.

[0037] Figure 10 A structure diagram of the support plate provided horizontally is shown.

[0038] 1. Positioning support structure; 101. Positioning support frame; 102. Fixed groove; 103. Arc-shaped groove; 104. Limiting groove; 105. First threaded groove;

[0039] 2. Positioning assembly; 201. Bearing seat; 202. Chamber; 203. Connecting rod; 204. Connecting seat; 205. Connecting shaft; 206. Connecting head; 207. Support plate; 208. Notch; 209. Motor; 210. Bidirectional screw rod; 211. Connecting block; 212. Positioning plate; 213. Positioning groove; 214. Connecting groove; 215. Arc-shaped protrusion; 216. Second threaded groove. DETAILED DESCRIPTION

[0040] The specific embodiments of the application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are only used to illustrate the application, but cannot be used to limit the scope of the application.

[0041] Example 1:

[0042] As shown in Figure 1 , Figure 2 and Figure 4 , the present embodiment proposes a positioning mechanism for detecting Salmonella equine abortion live vaccine, which comprises a positioning support structure 1, the positioning support structure 1 comprises two positioning support pieces, a positioning assembly 2 is arranged between the two positioning support pieces, the positioning assembly 2 comprises a bearing part arranged between the two positioning support pieces, an adjusting part is arranged on the bearing part, and a positioning part is arranged on the adjusting part.

[0043] The cooperation of the positioning part and the adjusting part can meet the use demand of manually placing the vaccine bottle. By separating the bearing part from the positioning support piece, separating the positioning part from the adjusting part, loading the positioning support piece on the adjusting part, and then loading the positioning part on the two positioning support pieces respectively, the switching of the mechanism form can be completed. The mutual cooperation of the adjusting part and the positioning support piece can drive the positioning part to expand or shrink, so that the vaccine bottle conveyed by the conveying belt can be positioned, and the functionality of the mechanism is improved.

[0044] Example 2:

[0045] The scheme in embodiment 1 is further introduced in combination with a specific working mode, and details are described below:

[0046] As shown in Figure 1 , Figure 2 and Figure 3 , as a preferred embodiment, on the basis of the above mode, further, the positioning support piece comprises a positioning support frame 101, one end of the positioning support frame 101 is provided with a fixing groove 102, arc-shaped grooves 103 are formed on the inner walls on both sides of the fixing groove 102, and the fixing groove 102 and the arc-shaped grooves 103 can be matched with the bolt to fix the positioning support frame 101 in a Figure 1 state; and in a Figure 8 state, the fixing groove 102 and the arc-shaped grooves 103 are used to cooperate with the connecting groove 214 and the arc-shaped protrusion 215 to realize the connection of the positioning support frame 101 and the positioning plate 212.

[0047] As shown in Figure 3 , as a preferred embodiment, on the basis of the above mode, further, one end of the positioning support frame 101 is provided with a first threaded groove 105, and limit grooves 104 are formed on both sides of the end of the positioning support frame 101 close to the first threaded groove 105, so that the positioning support frame 101 can be clamped between the two support plates 207, thereby realizing the connection of the positioning support frame 101 and the support plate 207.

[0048] As shown in Figure 1 , Figure 4 and Figure 5 , as a preferred embodiment, on the basis of the above mode, further, the bearing part comprises a bearing seat 201 in contact with the inner side of the positioning support frame 101, a recess is formed in the top of one end of the bearing seat 201, a cavity 202 is formed in the bearing seat 201 below the recess, a connecting rod 203 is transmissionally connected in the cavity 202, the top end of the connecting rod 203 extends into the recess through the cavity 202 and is fixedly connected with a connecting seat 204, a connecting shaft 205 is fixedly installed in the middle of the connecting seat 204, and the connecting seat 204 can be positioned through the recess.

[0049] As shown in Figure 5 , as a preferred embodiment, on the basis of the above mode, further, a spring is sleeved on the outer surface of the connecting rod 203 in the cavity 202, the two ends of the spring are in contact with the connecting rod 203 and the cavity 202 respectively, the acting force of the spring can limit the connecting seat 204, and the stability of the connecting seat 204 in the recess can be improved.

[0050] As shown in Figure 1 , Figure 4 and Figure 6As shown, in a preferred embodiment, based on the above method, a connector 206 is rotatably connected to the outer surface of the connecting shaft 205. Both sides of the connector 206 contact the inner walls of both sides of the connecting seat 204. The friction between the connector 206 and the connecting seat 204 limits the position of the connector 206, allowing the support plate 207 to... Figure 1 In this state, it can remain vertical. Two support plates 207 are fixedly installed on one side of the top of the connector 206. The top and bottom of the two support plates 207 that are close to each other are provided with notches 208. The notches 208 facilitate the connection and separation of the connector block 211 and the positioning support frame 101 from the support plates 207.

[0051] like Figure 4 As shown, in a preferred embodiment, based on the above method, a motor 209 is further fixedly connected between the tops of the two support plates 207. A bidirectional lead screw 210 is provided between the output shaft of the motor 209 and the connector 206. The outer surface of the bidirectional lead screw 210, corresponding to the notch 208, has a threadless structure. The threadless structure facilitates the connection and separation of the connecting block 211 and the positioning support frame 101 from the bidirectional lead screw 210. The bidirectional lead screw 210 has a threaded area with opposite thread directions. (Refer to...) Figure 4 The vertical movement of the connecting block 211 is equal to the length of the threaded area of ​​the lower part of the bidirectional lead screw 210.

[0052] like Figure 4 , Figure 6 and Figure 7 As shown, in a preferred embodiment, based on the above method, the positioning part further includes two connecting blocks 211 that are slidably connected between the two support plates 207. The two connecting blocks 211 have a second threaded groove 216 on their sides that are close to each other. The connecting blocks 211 are threadedly connected to the bidirectional lead screw 210 through the second threaded groove 216. The rotation of the bidirectional lead screw 210 can drive the connecting blocks 211 to rise or fall, thereby adjusting the height of the positioning plate 212.

[0053] like Figure 7 As shown, in a preferred embodiment, based on the above method, a positioning plate 212 is fixedly installed at one end of each of the two connecting blocks 211, and a plurality of positioning grooves 213 are formed on the side of the two positioning plates 212 that are close to each other, as shown in the figure. Figure 9The part between the positioning grooves 213 where the positioning plates 212 are located is pointedly arranged, and the advantage of this arrangement is that the vaccine bottle can be pushed to move when the two positioning plates 212 are close to each other, so that the vaccine bottle can move to the middle part of the positioning groove 213, thereby realizing the positioning of the vaccine bottle on the transmission belt. The two sides of the two positioning plates 212 away from each other are provided with connecting grooves 214, and the top and bottom of the two connecting grooves 214 are fixedly installed with arc-shaped protrusions 215. The cooperation of the arc-shaped protrusions 215 and the positioning grooves 213 can improve the firmness of the connection between the positioning support frame 101 and the positioning plate 212.

[0054] Embodiment 3:

[0055] The schemes in Embodiment 1 and Embodiment 2 will be further introduced in combination with specific working modes, and details are described below:

[0056] The embodiment proposes a use method of a positioning mechanism for detecting a Salmonella abortus equi live vaccine, which comprises the positioning mechanism for detecting the Salmonella abortus equi live vaccine, and further comprises:

[0057] S1, positioning when manually placing the vaccine bottle: refer to Figure 1 , first separate the positioning support structure 1 from the positioning assembly 2, fix the positioning support frame 101 in the corresponding position by screwing the bolt into the arc-shaped groove 103, and then start the motor 209 to drive the bidirectional screw rod 210 to rotate, drive the two connecting blocks 211 to rise or fall through the rotation of the bidirectional screw rod 210, and then adjust the height of the positioning plate 212 according to the actual situation, and then place the carrier seat 201 between the two positioning support frames 101, and then place the vaccine bottle in the positioning groove 213 to complete the positioning;

[0058] S2, positioning the vaccine bottle conveyed by the conveyor belt: start the motor 209 to drive the bidirectional screw rod 210 to rotate, drive the two connecting blocks 211 to descend through the rotation of the bidirectional screw rod 210, so that the connecting blocks 211 are located in the notches 208, then pull out the connecting blocks 211 from the notches 208 by pulling the positioning plate 212, pull up the support plate 207 to separate the connecting seat 204 from the groove, then rotate the connecting seat 204 by one hundred and eighty degrees around the connecting rod 203, and then place the connecting seat 204 in the groove, and then rotate the support plate 207 to be horizontal around the connecting shaft 205, that is, as shown in Figure 10 , fix the carrier seat 201 below the belt conveyor by screwing the bolt through the mounting hole on the carrier seat 201, and then insert the fixing grooves 102 on the two positioning support frames 101 into the connecting grooves 214 on the two positioning plates 212, that is, as shown in Figure 9As shown in the figure; then the one end of the positioning support frame 101 with the first threaded groove 105 is inserted from the gap 208, the motor 209 is started and the positioning support frame 101 is pushed so that the first threaded groove 105 is screwed with the bidirectional screw rod 210, at this time the two positioning plates 212 are located above the belt conveyor, that is, as shown in the figure Figure 8 ;

[0059] When the vaccine bottle is conveyed under the transmission of the transmission belt in the belt conveyor, the bidirectional screw rod 210 is rotated by the motor 209, so that the two positioning support frames 101 drive the two positioning plates 212 to approach each other, and the vaccine bottle is clamped and positioned by the cooperation of the two positioning plates 212 and the plurality of positioning grooves 213. After the liquid adding is completed, the two positioning support frames 101 drive the two positioning plates 212 to move away from each other by rotating the bidirectional screw rod 210 by the motor 209;

[0060] The two positioning support frames 101 drive the two positioning plates 212 to move away from each other by rotating the bidirectional screw rod 210 by the motor 209, then the positioning support frame 101 is taken out from the gap 208, the positioning support frame 101 is separated from the positioning plate 212 by pulling the positioning support frame 101, the support plate 207 is erected, the support plate 207 is pulled upwards so that the connecting seat 204 is separated from the groove, then the connecting seat 204 is rotated one hundred and eighty degrees around the connecting rod 203, the two connecting blocks 211 are attached to each other, and are inserted from the gap 208 below, the motor 209 is started and the positioning plate 212 is pushed upwards so that the second threaded groove 216 is screwed with the bidirectional screw rod 210, thereby switching the form of the mechanism from Figure 8 to Figure 1 .

[0061] The above embodiments are only used to illustrate the present application, and are not a limitation on the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present application do not deviate from the spirit and scope of the present application, and should be covered in the scope of the claims of the present application.

Claims

1. A positioning mechanism for detecting a Salmonella abortus equi live vaccine, characterized by, The utility model provides a positioning support structure, including positioning support structure (1), positioning support structure (1) includes two positioning supports, and the positioning assembly (2) is arranged between two positioning supports, the positioning assembly (2) includes the bearing portion arranged between two positioning supports, the adjusting portion is arranged on the bearing portion, and the positioning portion is arranged on the adjusting portion; The positioning support includes a positioning support frame (101), one end of the positioning support frame (101) is provided with a fixing groove (102), and the inner walls on both sides of the fixing groove (102) are provided with arc grooves (103). The other end of the positioning support frame (101) is provided with a first threaded groove (105), and the two sides of the end of the positioning support frame (101) close to the first threaded groove (105) are provided with limiting grooves (104). The bearing portion includes a bearing seat (201) in contact with the inner side of the positioning support frame (101), the top of one end of the bearing seat (201) is provided with a groove, the bearing seat (201) is provided with a cavity (202) below the groove, the connecting rod (203) is transmissionally connected in the cavity (202), the top end of the connecting rod (203) penetrates through the cavity (202) and extends into the groove and is fixedly connected with a connecting seat (204), and the connecting shaft (205) is fixedly installed in the middle of the connecting seat (204). The outer surface of the connecting shaft (205) is rotationally connected with a connecting head (206), the inner walls on both sides of the connecting head (206) are in contact with the connecting seat (204) on both sides, two support plates (207) are fixedly installed on one side of the top of the connecting head (206), and notches (208) are formed in the top and the bottom of the side close to each other of the two support plates (207). A motor (209) is fixedly connected between the tops of the two support plates (207), a bidirectional screw rod (210) is arranged between the output shaft of the motor (209) and the connecting head (206), and the outer surface of the bidirectional screw rod (210) is provided with a non-threaded structure at the positions corresponding to the notches (208). The positioning portion includes two connecting blocks (211) slidingly connected between the two support plates (207), second threaded grooves (216) are formed in the sides close to each other of the two connecting blocks (211), and the connecting blocks (211) are screw-connected with the bidirectional screw rod (210) through the second threaded grooves (216). One end of each of the two connecting blocks (211) is fixedly installed with a positioning plate (212), a plurality of positioning grooves (213) are formed in the sides close to each other of the two positioning plates (212), connecting grooves (214) are formed in the sides away from each other of the two positioning plates (212), and arc protrusions (215) are fixedly installed on the top and the bottom of each of the two connecting grooves (214).

2. The positioning mechanism for detecting Salmonella abortus equi live vaccine according to claim 1, characterized in that, The outer surface of the connecting rod (203) is sleeved with a spring in the cavity (202), and the two ends of the spring are in contact with the connecting rod (203) and the cavity (202) respectively.

3. A method of using a positioning mechanism for detecting Salmonella abortus equi live vaccine, comprising the positioning mechanism for detecting Salmonella abortus equi live vaccine according to claim 2, characterized in that, Further comprising: S1, positioning when manually placing the vaccine bottle: first separate the positioning support structure (1) from the positioning assembly (2), fix the positioning support frame (101) in the corresponding position by screwing into the arc-shaped groove (103), start the motor (209), rotate the bidirectional screw rod (210) driven by the motor (209), and adjust the height of the positioning plate (212) according to the actual situation by the rotation of the bidirectional screw rod (210) to drive the two connecting blocks (211) to rise or fall, then place the carrier seat (201) between the two positioning support frames (101), and put the vaccine bottle into the positioning groove (213) to complete the positioning; S2, positioning the vaccine bottle conveyed by the conveyor belt: start the motor (209), rotate the bidirectional screw rod (210) driven by the motor (209), and make the connecting block (211) located in the notch (208) by the rotation of the bidirectional screw rod (210) to drive the two connecting blocks (211) to descend, then pull out the connecting block (211) from the notch (208) by pulling the positioning plate (212), pull the support plate (207) upward to make the connecting seat (204) separate from the groove, then rotate the connecting seat (204) one hundred and eighty degrees around the connecting rod (203), and then place the connecting seat (204) in the groove, and rotate the support plate (207) to be horizontal around the connecting shaft (205); fix the carrier seat (201) below the belt conveyor by screwing through the mounting hole on the carrier seat (201), and insert the fixed groove (102) on the two positioning support frames (101) into the connecting groove (214) on the two positioning plates (212) respectively; then insert the end of the positioning support frame (101) provided with the first threaded groove (105) into the notch (208), start the motor (209) and push the positioning support frame (101) to make the first threaded groove (105) thread with the bidirectional screw rod (210), at this time, the two positioning plates (212) are located above the belt conveyor; When the vaccine bottle reaches between the two positioning plates (212) under the conveying of the transmission belt in the belt conveyor, rotate the bidirectional screw rod (210) driven by the motor (209) to make the two positioning support frames (101) drive the two positioning plates (212) to approach each other, and clamp and position the vaccine bottle by the cooperation of the two positioning plates (212) and the plurality of positioning grooves (213), after the liquid addition is completed, rotate the bidirectional screw rod (210) driven by the motor (209) to make the two positioning support frames (101) drive the two positioning plates (212) to move away from each other.

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