Dairy product additive concentration tester

Abstract

The utility model provides a dairy product additive concentration tester, and relates to the technical field of dairy product detection. Two supporting columns are installed on the bottom plate through bolts, two transverse plates are installed between the two supporting columns through bolts, belt wheels are installed at the left ends and the right ends of the two transverse plates through bearings, and a conveying belt is connected between the belt wheels at the left ends and the right ends of the transverse plates. According to the utility model, through the arrangement of the supporting columns, the transverse plate, the conveying belt and the like, automatic continuous conveying of dairy product samples can be realized, the stability in the conveying process is ensured by the bearing blocks on the transverse plate, the placement seat can be accurately fixed by matching with the arrangement of the positioning rods on the lower pressing plate, and the position of the samples is ensured to be stable and unchanged in the detection process; the frame plate and the clamping groove plate on the placing seat further limit and protect the measuring tube, and displacement of the measuring tube caused by external force or equipment vibration is avoided, so that accuracy and reliability of a detection result are guaranteed, and errors caused by improper placement of the sample are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dairy product detection, in particular to a dairy product additive concentration measuring instrument. Background Art

[0002] In today's food industry, dairy products, as an important consumer product category, have received significant attention for their quality and safety from consumers, regulators, and the industry as a whole. Dairy additives play an indispensable role in improving the taste, texture, shelf life, and nutritional content of products. For example, emulsifiers help to evenly disperse fat and prevent emulsion stratification; stabilizers maintain the physical stability of the product and prevent precipitation and coagulation; and preservatives extend the shelf life of the product, ensuring that its quality is not compromised during storage and sales. However, the use of additives must be precisely controlled within a reasonable concentration range; too much or too little can cause a series of problems. If the concentration of additives is too high, it may pose a potential threat to consumer health and may also violate relevant food safety regulations; conversely, if the concentration is too low, the expected product quality improvement effect cannot be achieved, affecting the product's market competitiveness. Therefore, a dairy additive concentration meter is needed to detect the concentration of additives in dairy products.

[0003] Traditional methods for determining the concentration of dairy additives have many problems. Many small dairy manufacturers still use manual sampling and send samples to professional laboratories for testing. This method is time-consuming, labor-intensive and inefficient. Utility Model Content

[0004] The embodiments of the present disclosure relate to a dairy product additive concentration measuring instrument to solve the problems raised in the above-mentioned background technology.

[0005] In a first aspect of the present disclosure, there is provided a dairy product additive concentration measuring instrument, specifically comprising: a bottom plate;

[0006] The bottom plate is provided with two groups of support columns mounted by bolts, two groups of horizontal plates are mounted by bolts between the two groups of support columns, the left and right ends of the two groups of horizontal plates are provided with belt pulleys mounted by bearings, and a conveying belt is connected between the belt pulleys at the left and right ends of the horizontal plates, the conveying belt is provided with two groups, and the two groups of horizontal plates are provided with bearing blocks mounted by bolts, the bottom plate is provided with a mounting seat mounted by a bolt, the mounting seat is provided with a lifting plate slidingly mounted thereon, the mounting seat is provided with two groups of first guard plates mounted by bolts at the upper end of the mounting seat, the mounting seat is provided with a first hydraulic rod mounted by a bolt, the upper end of the piston rod of the first hydraulic rod is fixedly connected with the lower end of the lifting plate, and the upper side of the lifting plate is provided with a placing seat which is a hollow structure, the placing seat is provided with two groups of positioning holes, the rear end of the mounting seat is provided with a second hydraulic rod mounted by a bolt, and the rear end of the mounting seat is provided with a movable plate slidingly mounted thereon, the lower end of the movable plate is fixedly connected with the upper end of the piston rod of the second hydraulic rod, the upper end of the movable plate is fixedly provided with a pressing plate, and the lower end of the pressing plate is fixedly provided with two groups of positioning rods which are respectively inserted into the two groups of positioning holes.

[0007] In at least some embodiments,

[0008] A first roller and a second roller are mounted on the support column near the right side of the bottom plate by bearings, and a chute is arranged on the support column near the right side of the bottom plate, the first roller moves in the chute on the support column, and the rotating shaft of the first roller is locked at the chute on the support column by a nut.

[0009] In at least some embodiments,

[0010] A motor seat is mounted on the support column near the right side of the bottom plate by a bolt, a motor is mounted on the motor seat by a bolt, a belt pulley is fixedly arranged on the output shaft of the motor, the conveying belt is sleeved on the first roller, the second roller and the belt pulley on the output shaft of the motor, and the right ends of the two groups of horizontal plates are provided with second guard plates mounted by bolts.

[0011] In at least some embodiments,

[0012] A third hydraulic rod is mounted on the right end of the support column near the right side of the bottom plate by a bolt, a sliding seat is slidingly arranged on the third hydraulic rod, the sliding seat is fixedly connected with the piston rod of the third hydraulic rod, and a baffle is fixedly arranged at the upper end of the sliding seat.

[0013] In at least some embodiments,

[0014] Three groups of frame plates are mounted on the placing seat by bolts, two groups of clamping groove plates are mounted on the three groups of frame plates by screws, and measuring tubes are placed on the clamping groove plates.

[0015] In at least some embodiments,

[0016] The support plate is bolted on the bottom plate, the lifting plate is slid on the support plate, the rear end of the lifting plate is provided with a threaded hole, the screw rod is bolted on the support plate through the bearing, the screw rod is threadedly connected with the threaded hole on the lifting plate, and the driving motor is bolted on the support plate, the output shaft of the driving motor is connected with the upper end of the screw rod.

[0017] In at least some embodiments,

[0018] The rail plate is fixed on the lifting plate, the moving plate is slid on the rail plate, the fourth hydraulic rod is fixed on the rail plate, the output shaft of the fourth hydraulic rod is fixedly connected with the moving plate, and the fixed plate is fixed on the moving plate.

[0019] In at least some embodiments,

[0020] The front end of the fixed plate is provided with the partition plate through the bolt, the first movable seat and the second movable seat are slid on the partition plate, the clamping arms are fixed on the first movable seat and the second movable seat, and the measuring instrument body is clamped between the two groups of clamping arms.

[0021] In at least some embodiments,

[0022] The rear end of the partition plate is fixed with the fifth hydraulic rod, the connecting plate is fixed on the first movable seat, the connecting plate is fixedly connected with the piston rod of the fifth hydraulic rod, the toothed plates are fixed on the first movable seat and the second movable seat, the meshing gear is installed on the partition plate through the bearing, and the meshing gear is meshed with the toothed plates on the first movable seat and the second movable seat respectively.

[0023] The utility model provides a kind of dairy additive concentration measuring instrument, with following beneficial effects:

[0024] In the utility model, by being provided with support column, transverse plate and conveying belt on bottom plate, the automation continuous conveying of dairy product sample can be realized, the stability of conveying process is guaranteed by load block on transverse plate, effectively reduce the risk of sample shaking and spilling, greatly improve the efficiency of entire detection procedure, so that it can better adapt to the rhythm of dairy product continuous production, hollow structure is used for placing seat and positioning hole is set, cooperate with the positioning rod on lower pressing plate, can accurately fix placing seat, ensure that sample position is stable and unchangeable in detection process, frame plate and clamping groove plate on placing seat further play the limiting and protection effect to measuring tube, avoid the displacement of measuring tube due to external force or equipment vibration, so as to ensure the accuracy and reliability of detection result, reduce the error caused by improper sample placement.

[0025] In addition, in the present invention, when the detection process is completed, the placement seat will continue to move to the right as the conveyor belt continues to operate, and then bring out the tested samples and convey them to the right. When the placement seat runs to the rightmost position of the conveyor belt, the No. 3 hydraulic rod will start the extension action, causing the baffle installed on its sliding seat to rise and extend. At this time, the baffle will be precisely in the travel path of the placement seat, and with its own blocking effect, it will effectively prevent the placement seat from continuing to move to the right, thereby ensuring that the placement seat can stay stably in the designated position for subsequent unified collection, sorting or other processing operations on the test samples. The whole process is smooth and orderly, which greatly improves the efficiency and accuracy of post-test sample processing, reduces the tediousness of manual intervention and the potential risk of operational errors, and provides a reliable finishing link guarantee for the automated process of dairy additive concentration detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below.

[0027] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0028] In the attached figure:

[0029] Figure 1 A schematic diagram showing the overall structure of the present application;

[0030] Figure 2 Shows a schematic structural diagram of the base plate and support column parts of the present application;

[0031] Figure 3 Shows the application Figure 2 Schematic diagram of the enlarged structure of part A;

[0032] Figure 4 Shows a schematic structural diagram of the mounting base portion of the present application;

[0033] Figure 5 A schematic structural diagram of the rear end of the mounting base of the present application is shown;

[0034] Figure 6 Shows a schematic structural diagram of the placement seat portion of the present application;

[0035] Figure 7 Shows the application Figure 6 Schematic diagram of the enlarged structure of part B;

[0036] Figure 8 Shows a structural schematic diagram of the support plate portion of the present application;

[0037] Figure 9Shows the application Figure 8 Schematic diagram of the enlarged structure of part C;

[0038] Figure 10 Shown is a schematic structural diagram of the partition part of the present application.

[0039] Reference Signs List

[0040] 1. Bottom plate; 11. Support column; 12. Cross plate; 13. Conveyor belt; 131. Load-bearing block; 14. Roller No. 1; 15. Roller No. 2; 16. Motor base; 161. Motor; 17. Hydraulic rod No. 3; 171. Sliding base; 172. Baffle; 18. Guard plate No. 2;

[0041] 2. Mounting base; 21. Lifting plate; 22. Hydraulic rod No. 1; 23. Guard plate No. 1; 24. Placement base; 241. Positioning hole; 242. Frame plate; 243. Slot plate; 244. Measuring tube; 25. Movable plate; 251. Lower pressure plate; 252. Positioning rod; 26. Hydraulic rod No. 2;

[0042] 3. Support plate; 31. Drive motor; 311. Screw rod; 32. Lifting plate; 33. Track plate; 331. Moving plate; 332. Hydraulic rod No. 4; 34. Fixed plate; 341. Partition plate; 342. Hydraulic rod No. 5; 343. Movable seat No. 1; 3431. Connecting plate; 344. Movable seat No. 2; 345. Tooth plate; 346. Meshing gear; 347. Clamping arm; 35. Measuring instrument body. DETAILED DESCRIPTION

[0043] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Example 1: Please refer to Figures 1 to 10 :

[0045] The utility model provides a dairy product additive concentration measuring instrument, comprising: a bottom plate 1;

[0046] Two groups of support columns 11 are installed on the bottom plate 1 by bolts, and two groups of cross plates 12 are installed between the two groups of support columns 11 by bolts. The left and right ends of the two groups of cross plates 12 are installed with pulleys through bearings. A conveyor belt 13 is connected between the pulleys at the left and right ends of the cross plates 12. There are two groups of conveyor belts 13, and the two groups of cross plates 12 are installed with load-bearing blocks 131 by bolts. A mounting seat 2 is installed on the bottom plate 1 by bolts, and a lifting plate 21 slides on the mounting seat 2. Two groups of No. 1 guard plates 23 are installed on the upper end of the mounting seat 2 by bolts. A No. 1 hydraulic rod 22 is installed on the mounting seat 2 by bolts. The upper end of the piston rod of the rod 22 is fixedly connected to the lower end of the lifting plate 21. A placement seat 24 is provided above the lifting plate 21. The placement seat 24 is a hollow structure. Two groups of positioning holes 241 are provided on the placement seat 24. The rear end of the mounting seat 2 is installed with a No. 2 hydraulic rod 26 by bolts, and a movable plate 25 is slidably provided at the rear end of the mounting seat 2. The lower end of the movable plate 25 is fixedly connected to the upper end of the piston rod of the No. 2 hydraulic rod 26. The upper end of the movable plate 25 is fixed with a lower pressure plate 251, and the lower end of the lower pressure plate 251 is fixed with two groups of positioning rods 252. The two groups of positioning rods 252 are respectively inserted into the two groups of positioning holes 241.

[0047] In the embodiment of the present disclosure,

[0048] The first roller 14 and the second roller 15 are installed on the support column 11 near the right side of the base plate 1 through bearings, and a slide is provided on the support column 11 near the right side of the base plate 1. The first roller 14 moves in the slide on the support column 11, and the rotating shaft of the first roller 14 is locked in the slide on the support column 11 by a nut. A motor seat 16 is installed on the support column 11 near the right side of the base plate 1 by bolts, and an electric motor 161 is installed on the motor seat 16 by bolts. A pulley is fixed on the output shaft of the motor 161, and the conveyor belt 13 is sleeved on the pulleys on the output shaft of the No. 1 roller 14, the No. 2 roller 15 and the motor 161. The right ends of the two groups of cross plates 12 are both equipped with No. 2 guard plates 18 by bolts. Its function is: by loosening the nut on the No. 1 roller 14, the position of the No. 1 roller 14 can be adjusted, which is convenient for adjusting the tension of the conveyor belt 13.

[0049] In the embodiment of the present disclosure,

[0050] The right end of the support column 11 near the right side of the base plate 1 is installed with a No. 3 hydraulic rod 17 by bolts, and a sliding seat 171 is sliding on the No. 3 hydraulic rod 17, and the sliding seat 171 is fixedly connected to the piston rod of the No. 3 hydraulic rod 17. A baffle 172 is fixed to the upper end of the sliding seat 171, whose function is: when the placement seat 24 runs to the rightmost position of the conveyor belt 13, the No. 3 hydraulic rod 17 will start the extension action, so that the baffle 172 installed on its sliding seat 171 will be lifted upward and extended. At this time, the baffle 172 will be precisely in the travel path of the placement seat 24, and with its own blocking effect, it will effectively prevent the placement seat 24 from continuing to move to the right, thereby ensuring that the placement seat 24 can stay stably in the designated position.

[0051] Example 2, based on Example 1,

[0052] Three groups of frame plates 242 are installed on the placement seat 24 by bolts, and two groups of slot plates 243 are installed on the three groups of frame plates 242 by screws. A measuring tube 244 is placed on the slot plates 243. Its function is: the frame plates 242 and the slot plates 243 on the placement seat 24 further limit and protect the measuring tube 244 to prevent the measuring tube 244 from shifting due to external force or equipment vibration.

[0053] Example 3, based on Example 1 and Example 2,

[0054] The bottom plate 1 is provided with a support plate 3 by bolts, and a lifting plate 32 is slidably mounted on the support plate 3. A threaded hole is provided at the rear end of the lifting plate 32. A screw rod 311 is mounted on the support plate 3 through a bearing. The screw rod 311 is threadedly matched with the threaded hole on the lifting plate 32. A driving motor 31 is mounted on the support plate 3 by bolts. The output shaft of the driving motor 31 is connected to the upper end of the screw rod 311. A rail plate 33 is fixed on the lifting plate 32. A movable plate 331 is slidably mounted on the rail plate 33. A No. 4 hydraulic rod 332 is fixed on the rail plate 33. The output shaft of the No. 4 hydraulic rod 332 is connected to the movable plate 33. 1 is fixedly connected, a fixed plate 34 is fixed on the movable plate 331, a partition 341 is installed at the front end of the fixed plate 34 by bolts, a No. 1 movable seat 343 and a No. 2 movable seat 344 are slid on the partition 341, a clamping arm 347 is fixed on the No. 1 movable seat 343 and the No. 2 movable seat 344, a measuring instrument body 35 is clamped between the two sets of clamping arms 347, a No. 5 hydraulic rod 342 is fixed on the rear end of the partition 341, a connecting plate 3431 is fixed on the No. 1 movable seat 343, the connecting plate 3431 is fixedly connected to the piston rod of the No. 5 hydraulic rod 342, and the No. 1 movable seat 34 The gear plates 345 are fixed on the No. 1 and No. 2 movable seats 344, and the meshing gears 346 are installed on the partition plate 341 through bearings. The meshing gears 346 are respectively meshed with the gear plates 345 on the No. 1 movable seat 343 and the No. 2 movable seat 344. Its function is to: drive the motor 31 to drive the screw rod 311 to rotate. Since the screw rod 311 is threadedly matched with the threaded hole on the lifting plate 32, the lifting plate 32 can slide up and down along the support plate 3, thereby realizing the precise positioning of the measuring instrument body 35 in the vertical direction. The extension and contraction of the No. 4 hydraulic rod 332 can push the movable plate 331 to the left on the track plate 33. It slides to the right, thereby driving the fixed plate 34 and the measuring instrument body 35 to move in the horizontal direction, realizing flexible adjustment of the lateral position of the measuring instrument body 35, and through the extension and contraction of the No. 5 hydraulic rod 342, the No. 1 movable seat 343 is driven to move through the connecting plate 3431, and at the same time, the meshing transmission of the toothed plate 345 on the No. 1 movable seat 343 and the No. 2 movable seat 344 and the meshing gear 346 on the partition 341 is utilized, so that the No. 1 movable seat 343 and the No. 2 movable seat 344 can be relatively close to or away from each other, thereby realizing effective clamping and release of measuring instrument bodies 35 of different sizes or models.

[0055] The working principle of this embodiment is as follows: first, the sample containing dairy additives to be tested is placed in the measuring tube 244, and the measuring tube 244 is placed in the card slot plate 243 on the placement seat 24, and the motor 161 is started. The pulley on the output shaft of the motor 161 drives the conveyor belt 13 to move. The conveyor belt 13, supported and guided by the No. 1 roller 14 and the No. 2 roller 15, transports the placement seat 24 and the sample thereon from left to right to the detection position, extends the No. 1 hydraulic rod 22 to make the lifting plate 21 push the placement seat 24 upward to separate it from the two groups of conveyor belts 13, contracts the No. 2 hydraulic rod 26 to press the lower pressure plate 251 downward, so that the two groups of positioning rods 252 are inserted into the two groups of positioning holes 241 on the placement seat 24, and the No. 4 hydraulic rod 332 is extended to push the movable plate 331 to slide on the track plate 33, with The movable fixed plate 34 and the measuring instrument body 35 move in the horizontal direction so that the measuring instrument is accurately aligned with the sample on the placement seat 24. The driving motor 31 is started, driving the screw rod 311 to rotate. Since the screw rod 311 is threadedly matched with the threaded hole on the lifting plate 32, the lifting plate 32 slides up and down along the support plate 3, so that the probe of the measuring instrument body 35 is inserted into the corresponding measuring tube 244 to complete the detection of the concentration of dairy additives in the sample. After the detection is completed, the conveyor belt 13 continues to run, and the placement seat 24 and the tested sample are output to the right. When the placement seat 24 runs to the right side of the conveyor belt 13, the No. 3 hydraulic rod 17 extends, pushing the baffle 172 on the sliding seat 171 to extend upward, blocking the placement seat 24, so that it stays in the specified position for subsequent collection and processing of the tested samples.

[0056] In this article, there are several points to note:

[0057] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0058] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0059] The above are only specific implementation methods of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this disclosure, and they should all be covered by the protection scope of the present disclosure.

Claims

1. A dairy product additive concentration measuring instrument, comprising: Bottom plate (1); characterized in that, Two groups of support columns (11) are installed on the bottom plate (1) by bolts, two groups of transverse plates (12) are installed between the two groups of support columns (11) by bolts, the left and right ends of the two groups of transverse plates (12) are both installed with pulleys through bearings, a conveyor belt (13) is connected between the pulleys at the left and right ends of the transverse plates (12), two groups of conveyor belts (13) are provided, and a load-bearing block (131) is installed on the two groups of transverse plates (12) by bolts, a mounting seat (2) is installed on the bottom plate (1) by bolts, a lifting plate (21) is slidably mounted on the mounting seat (2), two groups of No. 1 guard plates (23) are installed on the upper end of the mounting seat (2) by bolts, a No. 1 hydraulic rod (22) is installed on the mounting seat (2) by bolts, and a No. 1 hydraulic rod (23) is installed on the mounting seat (2) by bolts. The upper end of the piston rod of the rod (22) is fixedly connected to the lower end of the lifting plate (21), and a placement seat (24) is provided above the lifting plate (21). The placement seat (24) is a hollow structure, and two groups of positioning holes (241) are provided on the placement seat (24). The rear end of the mounting seat (2) is mounted with a No. 2 hydraulic rod (26) by bolts, and a movable plate (25) is slidably provided at the rear end of the mounting seat (2). The lower end of the movable plate (25) is fixedly connected to the upper end of the piston rod of the No. 2 hydraulic rod (26). The upper end of the movable plate (25) is fixed with a lower pressing plate (251), and the lower end of the lower pressing plate (251) is fixed with two groups of positioning rods (252), and the two groups of positioning rods (252) are respectively inserted into the two groups of positioning holes (241).

2. A dairy product additive concentration measuring instrument according to claim 1, characterized in that: A first roller (14) and a second roller (15) are mounted on the support column (11) on the right side of the base plate (1) via bearings, and a slide groove is provided on the support column (11) on the right side of the base plate (1). The first roller (14) moves in the slide groove on the support column (11), and the rotating shaft of the first roller (14) is locked in the slide groove on the support column (11) via a nut.

3. A dairy product additive concentration measuring instrument according to claim 2, characterized in that: A motor base (16) is mounted on the support column (11) on the right side of the base plate (1) by means of bolts, a motor (161) is mounted on the motor base (16) by means of bolts, a pulley is fixed on the output shaft of the motor (161), a conveyor belt (13) is sleeved on a No. 1 roller (14), a No. 2 roller (15) and a pulley on the output shaft of the motor (161), and a No. 2 guard plate (18) is mounted on the right ends of the two sets of transverse plates (12) by means of bolts.

4. A dairy product additive concentration measuring instrument according to claim 3, characterized in that: A third hydraulic rod (17) is mounted on the right end of the support column (11) close to the right side of the base plate (1) via a bolt. A sliding seat (171) slides on the third hydraulic rod (17). The sliding seat (171) is fixedly connected to the piston rod of the third hydraulic rod (17). A baffle (172) is fixed to the upper end of the sliding seat (171).

5. The dairy product additive concentration measuring instrument according to claim 1, characterized in that: Three groups of frame plates (242) are installed on the placement seat (24) through bolts, and two groups of slot plates (243) are installed on the three groups of frame plates (242) through screws, and the measuring tubes (244) are placed on the slot plates (243).

6. A dairy product additive concentration measuring instrument according to claim 4, characterized in that: A support plate (3) is mounted on the base plate (1) via bolts, a lifting plate (32) is slidably mounted on the support plate (3), a threaded hole is provided at the rear end of the lifting plate (32), a screw rod (311) is mounted on the support plate (3) via a bearing, the screw rod (311) is threadedly engaged with the threaded hole on the lifting plate (32), and a driving motor (31) is mounted on the support plate (3) via bolts, the output shaft of the driving motor (31) is connected to the upper end of the screw rod (311).

7. A dairy product additive concentration measuring instrument according to claim 6, characterized in that: A rail plate (33) is fixed on the lifting plate (32), a movable plate (331) slides on the rail plate (33), and a fourth hydraulic rod (332) is fixed on the rail plate (33), an output shaft of the fourth hydraulic rod (332) is fixedly connected to the movable plate (331), and a fixed plate (34) is fixed on the movable plate (331).

8. The dairy product additive concentration measuring instrument according to claim 7, characterized in that: A partition (341) is mounted on the front end of the fixed plate (34) via bolts. A movable seat No. 1 (343) and a movable seat No. 2 (344) are slidably mounted on the partition (341). Clamping arms (347) are fixed on both the movable seat No. 1 (343) and the movable seat No. 2 (344). The measuring instrument body (35) is clamped between the two sets of clamping arms (347).

9. The dairy product additive concentration measuring instrument according to claim 8, characterized in that: A fifth hydraulic rod (342) is fixed to the rear end of the partition (341), a connecting plate (3431) is fixed on the first movable seat (343), the connecting plate (3431) is fixedly connected to the piston rod of the fifth hydraulic rod (342), and a tooth plate (345) is fixed on both the first movable seat (343) and the second movable seat (344), and a meshing gear (346) is installed on the partition (341) through a bearing, and the meshing gear (346) is meshed with the tooth plates (345) on the first movable seat (343) and the second movable seat (344) respectively.

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