Counting mechanism and its applications, skipping rope counting detection device

Abstract

The present invention relates to the field of counting mechanisms, and particularly to a counter and a skipping rope counting and detecting device. The counting structure of the present application is in the shape of a platform, and the counting structure will count once only when an object / person presses down on the platform by a certain stroke; to solve the problems of the above-mentioned prior art.

Description

Technical Field

[0001] The present invention relates to the field of counting mechanisms, and particularly to counters and skipping rope counting detection devices. Background Art

[0002] A counting mechanism is a structure used for counting and recording quantities, and it is widely described in the IPC classification number G06M.

[0003] During the transportation of goods, accurate counting is necessary. During the loading and unloading of goods onto a vehicle, it is necessary to ensure that the quantity of the loaded and unloaded goods is correct; however, currently, this process usually relies on manual counting, where staff count while handling the goods, and this approach is prone to counting errors. Nevertheless, the counting mechanisms described by the applicant in the IPC classification number G06M do not provide an effective solution to the above technical problems.

[0004] In addition, during skipping rope exercises, counting is also important. Currently, exercisers use cordless skipping rope electronic counters, which can be operated without actually skipping; however, if the exerciser only shakes the counter without actually jumping, the counter will still record one skipping, and this counting method is obviously inaccurate.

[0005] This application aims to provide a counting mechanism. Summary of the Invention

[0006] The present invention provides a counting mechanism and its applications, as well as a skipping rope counting detection device, to solve the above technical problems.

[0007] To achieve the above invention objective, the technical solution adopted by the present invention is as follows:

[0008] Counting mechanism,

[0009] A base for contacting the ground;

[0010] A carrying platform located directly above the base;

[0011] An elastic buffer structure installed between the carrying platform and the base;

[0012] A contact sensor for detecting whether there is a cargo placed on the carrying platform; the contact sensor is located between the base and the carrying platform, and the contact sensor is fixedly connected to the base;

[0013] A sounding element;

[0014] A single-chip microcomputer electrically connected to the sounding element and the contact sensor respectively;

[0015] Among them, during the process of successively applying and canceling gravity on the bearing platform, the bearing platform and the contact sensor switch between disconnection and contact or between contact and disconnection; the single-chip microcomputer can receive the switching actions of contact and disconnection of the contact sensor, and the single-chip microcomputer accumulates the count, and the cumulative total is played out as a specific digital sound through the sound-emitting element.

[0016] Furthermore, a trigger member is fixedly arranged on the lower side of the bearing platform; a support member is fixedly arranged on the upper side of the base; the contact sensor is fixedly connected to the support member;

[0017] During the process of successively applying and canceling gravity on the bearing platform, the bearing platform and the contact sensor switch between disconnection and contact or between contact and disconnection.

[0018] Furthermore, the detection end of the contact sensor faces upward, and the trigger member is located above the detection end of the contact sensor;

[0019] When gravity is applied to the bearing platform, the downward movement of the trigger member can squeeze the detection end of the contact sensor; the material of the trigger member is a flexible rubber material.

[0020] Furthermore, the upper end of the support member is bent to form a bent portion, and the contact sensor is fixed to the bent portion of the support member;

[0021] The lower end of the trigger member is bent to form a trigger portion, and the trigger portion of the trigger member is located directly below the detection end of the contact sensor;

[0022] During the process of applying gravity to the bearing platform, the detection end of the contact sensor is separated from the trigger portion of the trigger member; after the gravity on the bearing platform is canceled, when the trigger member rises to the maximum height, the detection end of the contact sensor just comes into contact with the trigger portion of the trigger member again.

[0023] Furthermore, two legs are provided, and the two legs are respectively distributed outside two adjacent sleeves of the counting mechanism; the legs are rotatably connected to the upper side of the base; a roller is installed at the first end of the leg; the other end of the leg is a clamping end and the clamping end is located between the base and the bearing platform;

[0024] The support is fixed to the lower side of the bearing platform; the support is provided with a slideway, and the clamping end can enter the slideway during the rotation of the leg;

[0025] Among them, the clamping end has a downward pressing inclined surface, and the slideway is provided with an inlet inclined surface below the inlet thereof; when the clamping end does not enter the slideway, the downward pressing inclined surface faces the inlet inclined surface; during the process of the clamping end entering the slideway, the downward pressing inclined surface presses the inlet inclined surface downward, and the bearing platform drives the trigger member to move away from the detection end of the contact sensor; at the same time, when the clamping end enters the slideway to a preset position, the locking mechanism locks the leg and the support together.

[0026] Furthermore, there are two limiting springs in total; one end of each spring is fixedly connected to the base.

[0027] The other ends of the two springs are respectively fixed to the legs.

[0028] When the clamping end does not enter the slideway, the spring always pulls the leg to contact with the sleeve.

[0029] Furthermore, the clamping ends are all provided with sockets; the support seat is provided with an unlocking channel which is located directly above the slideway.

[0030] The locking mechanism includes a positioning member, a connecting cross beam, and a positioning spring; the connecting cross beam is located in the unlocking channel, the upper ends of the two positioning members are fixedly connected to the connecting cross beam, and the lower ends of the positioning members penetrate into the slideway; the positioning spring always pulls the lower ends of the positioning members into the slideway.

[0031] Wherein, the upper side of the clamping end located on the downward inclined surface is provided with an upward inclined surface; during the process that the clamping end enters the slideway, the upward inclined surface overcomes the elastic force of the positioning spring to push the positioning member up first. When the socket moves to directly below the positioning member, the elastic force of the positioning spring pulls the lower end of the positioning member into the socket; thus, the positioning of the clamping end / leg is completed.

[0032] Furthermore, the unlocking structure includes a slideway seat, a maintaining spring, a sliding rod, and an unlocking member.

[0033] The sliding rod slidably penetrates through the slideway seat, and the slideway seat is fixedly connected to the lower side of the bearing platform.

[0034] The unlocking member is fixedly connected to one end of the sliding rod. An unlocking surface is arranged on the side of the unlocking member facing the connecting cross beam. The unlocking surface can lift the connecting cross beam and pull the positioning member out of the socket during the process of squeezing the lower side surface of the connecting cross beam.

[0035] The two ends of the maintaining spring are respectively fixed to the unlocking member and the sliding rod; the maintaining spring can maintain the separation of the unlocking surface and the connecting cross beam.

[0036] The beneficial effects of the present invention are as follows:

[0037] 1. To ensure the accuracy of skipping rope counting, the system is designed to count only after the skipper truly jumps into the air. In this way, every time the skipper leaves the ground and lands again, the counter will increase by one, thus ensuring the accuracy and reliability of the counting result. This design effectively avoids incorrect counting caused by misoperation or other non-jumping actions, enabling the skipper to focus more on their exercise without worrying about the accuracy of counting.

[0038] 2. During the movement, the trigger 11 is disengaged from the contact sensor 40, preventing the problem of frequent counting caused by the vibration of the carrying platform 10 during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 Schematic diagram of the second embodiment;

[0040] Figure 2 Schematic diagram of the third embodiment;

[0041] Figure 3 Top view of the counting mechanism;

[0042] Figure 4 Schematic diagram of the elastic buffer structure 30;

[0043] Figure 5 Schematic diagram of the fourth embodiment;

[0044] Figure 6 For Figure 5 A - A sectional view of

[0045] Figure 7 Schematic diagram of the unlocking structure 110;

[0046] Figure 8 Process diagram of the clamping end 72 entering the slideway 81;

[0047] Figure 9 Schematic diagram of the counting mechanism in the walking state;

[0048] List of reference numerals:

[0049] Carrying platform 10, trigger 11;

[0050] Base 20, support 21;

[0051] Elastic buffer structure 30, sleeve 31, core shaft 32, piston block 321, buffer spring 33;

[0052] Contact sensor 40, single - chip microcomputer 50, sound - emitting element 60;

[0053] Leg 70, roller 71, clamping end 72, downward inclined surface 721, upward inclined surface 722, socket 723;

[0054] Support 80, slideway 81, entrance inclined surface 811, unlocking channel 82;

[0055] Locking mechanism 90, positioning member 91, connecting cross - beam 92, positioning spring 93;

[0056] Limit spring 100;

[0057] Unlocking structure 110, slideway seat 111, maintaining spring 112, sliding rod 113, handle 1131, unlocking member 114, unlocking surface 1141. Detailed implementation mode

[0058] The following further describes the specific implementation mode of the present invention with reference to the drawings. Among them, the same parts are denoted by the same reference numerals.

[0059] It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0060] In order to make the content of the present invention easier to be clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

[0061] Considering the prior art, when manually counting the number of goods during loading and unloading, it is easy to make counting errors; in addition, currently, when an exerciser only shakes a cordless skipping rope electronic counter without jumping, the counter will still record one skipping, and this counting method is obviously inaccurate. Considering the above problems, the counting structure of the present application is in the shape of a platform, and it is necessary for an item / person to press down on the platform by a certain stroke before the counting structure will count once; to solve the problems of the above prior art.

[0062] First, describe the scenario of goods during loading and unloading: The vehicle is parked in a designated area, and there are porters under the vehicle and on the vehicle. The porter under the vehicle transports the goods to the ground beside the carriage of the vehicle, and then the porter under the vehicle lifts or raises the goods to assist the person on the vehicle to place the goods in the carriage; at the same time, the person on the vehicle records or remembers the goods on the vehicle.

[0063] Embodiment 1

[0064] Refer to Figure 1 、 Figure 2 The counting mechanism includes a bearing platform 10, a base 20, an elastic buffer structure 30, a contact sensor 40, a single-chip microcomputer 50, and a sounding element 60.

[0065] The base 20 is used to contact the ground; that is, during the working process of the counting mechanism, the base 20 is placed on the ground.

[0066] The bearing platform 10 is located directly above the base 20; the bearing platform 10 is a support platform that can support rope skipping exercisers or goods; when the counting mechanism is used as the counting structure during the process of loading goods onto a vehicle, the counting mechanism is placed on the ground beside the carriage of the vehicle. The handlers under the vehicle carry the goods onto the bearing platform 10 of the counting mechanism, and then lift or raise the goods on the bearing platform 10 to a height where the personnel in the vehicle can receive the goods; meanwhile, the counting mechanism can record the number of goods loaded onto the vehicle. Additionally, based on the bearing platform 10, during the process where the handlers under the vehicle lift or raise the goods to a height where the personnel in the vehicle can receive the goods, it is more labor-saving.

[0067] The elastic buffer structure 30 is installed between the bearing platform 10 and the base 20; the elastic buffer structure 30 provides a certain descending stroke for the bearing platform 10 and provides a certain buffer.

[0068] The contact sensor 40 is used to detect whether there is a good placed on the bearing platform 10; the contact sensor 40 is located between the base 20 and the bearing platform 10, and the contact sensor 40 is fixedly connected to the base 20.

[0069] The single-chip microcomputer 50 is electrically connected to the sound-emitting component 60 and the contact sensor 40 respectively.

[0070] Among them, during the process of successively applying and canceling gravity on the bearing platform 10, the bearing platform 10 and the contact sensor 40 switch between disconnection and contact or between contact and disconnection; the single-chip microcomputer 50 can receive the switching actions of contact and disconnection of the contact sensor 40, and the single-chip microcomputer 50 accumulates the count, and the cumulative total is played out as a specific digital sound through the sound-emitting component 60.

[0071] In summary, when the exerciser lands on the bearing platform 10 and jumps into the air, or when the goods are placed on the bearing platform 10 and carried onto the vehicle; both are the above-mentioned process of "successively applying and canceling gravity on the bearing platform 10". During this process, the single-chip microcomputer 50 can receive the switching actions of contact and disconnection of the contact sensor 40, and the single-chip microcomputer 50 accumulates the count, and the cumulative total is played out as a specific digital sound through the sound-emitting component 60; not only realizes the counting of goods loaded onto the vehicle, but also realizes the effect that the rope skipper must jump into the air before the count.

[0072] Further, multiple elastic buffer structures 30 are provided; among them, the elastic buffer structure 30 includes a sleeve 31, a core shaft 32, and a buffer spring 33;

[0073] The lower end of the sleeve 31 is fixedly connected to the base 20, and the core shaft 32 slides through the sleeve 31; both ends of the buffer spring 33 are fixedly connected to the upper end of the sleeve 31 and the lower side of the bearing platform 10 respectively.

[0074] When gravity is applied to the bearing platform 10, the buffer spring 33 is further compressed, and the bearing platform 10 descends a certain stroke; when the gravity on the bearing platform 10 is removed, the buffer spring 33 restores the bearing platform 10 to its original height.

[0075] Further, a trigger member 11 is fixedly provided on the lower side of the bearing platform 10; a support member 21 is fixedly provided on the upper side of the base 20; the contact sensor 40 is fixedly connected to the support member 21.

[0076] During the process of successively applying and removing gravity to the bearing platform 10, the bearing platform 10 and the contact sensor 40 switch between being disconnected and in contact or between being in contact and being disconnected.

[0077] Further, there are two arrangement postures of the contact sensor 40, and the following will introduce these two postures in detail.

[0078] Embodiment 2

[0079] The first arrangement posture of the contact sensor 40; the differences between Embodiment 2 and Embodiment 1 are as follows.

[0080] Refer to Figure 1 , the detection end of the contact sensor 40 faces upward, and the trigger member 11 is located at the upper end of the detection end of the contact sensor 40;

[0081] When gravity is applied to the bearing platform 10, the downward movement of the trigger member 11 can squeeze the detection end of the contact sensor 40; the material of the trigger member 11 is a flexible rubber material. However, for this first arrangement posture of the contact sensor 40, it has the following characteristics: when objects of different weights are placed on the bearing platform 10, the downward movement distance of the trigger member 11 is different, and the force of the trigger member 11 on the contact sensor 40 is different, which is not conducive to improving the service life of the contact sensor 40.

[0082] Embodiment 3

[0083] The second arrangement posture of the contact sensor 40; the differences between Embodiment 2 and Embodiment 1 are as follows.

[0084] Refer to Figure 2 , the upper end of the support member 21 is bent to form a bent portion, and the contact sensor 40 is fixed to the bent portion of the support member 21.

[0085] The lower end of the trigger member 11 is bent to form a trigger portion, and the trigger portion of the trigger member 11 is located directly below the detection end of the contact sensor 40.

[0086] During the process of applying gravity to the bearing platform 10, the detection end of the contact sensor 40 is disengaged from the triggering portion of the trigger member 11. After the gravity applied to the bearing platform 10 is cancelled and when the trigger member 11 rises to the maximum height, the detection end of the contact sensor 40 just comes into contact with the triggering portion of the trigger member 11 again. During the processes of gravity application and cancellation, the accumulation of counting is completed.

[0087] Compared with the first structure, the advantage of the second structure is that when the bearing platform 10 of the second structure reaches the maximum height, the trigger member 11 just triggers the detection end of the contact sensor 40; regardless of the magnitude of the applied gravity, the effect of just triggering the detection end of the contact sensor 40 can be achieved.

[0088] Furthermore, a piston block 321 is provided at the lower end of the mandrel 32, and the piston block 321 is located inside the sleeve 31;

[0089] The piston block 321 is smaller than the upper port diameter of the sleeve 31 to prevent the piston block 321 from sliding out of the upper port of the sleeve 31.

[0090] Embodiment 4

[0091] The differences between Embodiment 4 and Embodiment 3 are as follows.

[0092] Refer to Figure 5 、 6 , two supporting legs 70 are provided in total, and the two supporting legs 70 are respectively distributed on the outer sides of two adjacent sleeves 31 of the counting mechanism; the supporting legs 70 are rotatably connected to the upper side of the base 20; a roller 71 is installed at the first end of the supporting leg 70, refer to Figure 9 , the two rollers are used for the device to roll and move on the ground; the other end of the supporting leg 70 is a clamping end 72 and the clamping end 72 is located between the base 20 and the bearing platform 10;

[0093] A support 80 is fixed to the lower side of the bearing platform 10; the support 80 is provided with a slideway 81, and during the process of rotating the supporting leg 70, the clamping end 72 can enter the slideway 81.

[0094] Among them, the clamping end 72 has a downward pressing inclined surface 721, and the slideway 81 is provided with an inlet inclined surface 811 below the entrance thereof; when the clamping end 72 does not enter the slideway 81, the downward pressing inclined surface 721 faces the inlet inclined surface 811; during the process of the clamping end 72 entering the slideway 81, the downward pressing inclined surface 721 presses the inlet inclined surface 811 downward, and at the same time the support 80 drives the bearing platform 10 to move towards the base 20, and the bearing platform 10 drives the trigger member 11 to move away from the detection end of the contact sensor 40; at the same time, when the clamping end 72 enters the slideway 81 to a preset position, the locking mechanism 90 locks the supporting leg 70 and the support 80 together.

[0095] In summary, it not only fixes the positions of the two legs 70, but also disengages the trigger 11 from the contact sensor 40. For some carriages with a length of more than ten meters, the initial position where the goods are loaded onto the carriage is at the head of the carriage. During the process of loading the carriage, the position where the goods are loaded onto the carriage gradually moves towards the tail of the carriage, that is, the position where the goods are loaded onto the carriage gradually moves from the head of the carriage to the tail of the carriage; furthermore, during the process of assisting the loading of goods onto the carriage with this counting structure, the counting structure needs to move; after the clamping end 72 enters the slideway 81, the leg 70 is locked and cannot rotate relative to the carrying platform 10 / base 20, and the counting structure can move relying on the roller 71; since the trigger 11 and the contact sensor 40 are always disengaged during the movement, it prevents the problem of frequent counting due to the tremor of the carrying platform 10 during the movement.

[0096] Further, there are two limit springs 100 in total; one end of the spring 100 is fixedly connected to the base 20;

[0097] The other ends of the two springs 100 are respectively fixed to the legs 70;

[0098] When the clamping end 72 does not enter the slideway 81, the spring 100 always pulls the leg 70 to contact with the sleeve 31. That is, when the clamping end 72 is not locked by the locking mechanism 90, the limit spring 100 maintains the stable positions of the two legs 70.

[0099] Further, referring to Figure 6 , the clamping end 72 is provided with a socket 723 for being positioned by the locking mechanism 90; the support 80 is provided with an unlocking channel 82, and the unlocking channel 82 is located directly above the slideway 81.

[0100] Referring to Figure 7 , the locking mechanism 90 includes a positioning member 91, a connecting cross beam 92, and a positioning spring 93; the connecting cross beam 92 is located in the unlocking channel 82, the positioning member 91 is used to insert into the socket 723 to position the clamping end 72 / leg 70, the upper ends of the two positioning members 91 are fixedly connected to the connecting cross beam 92, and the lower ends of the positioning members 91 penetrate into the slideway 81; the positioning spring 93 always pulls the lower ends of the positioning members 91 into the slideway 81.

[0101] Wherein, the clamping end 72 is provided with an upwardly inclined surface 722 on the upper side of the downwardly inclined surface 721; during the process of the clamping end 72 entering the slideway 81 (refer to Figure 8 ), the upwardly inclined surface 722 overcomes the elastic force of the positioning spring 93 and first squeezes the positioning member 91 upwards. When the socket 723 moves to directly below the positioning member 91, the elastic force of the positioning spring 93 pulls the lower end of the positioning member 91 into the socket 723; thus, the positioning of the clamping end 72 / leg 70 is completed.

[0102] Further, referring to Figure 7 , when the leg 70 is unlocked from the locking mechanism 90, the user needs to insert a rod into the unlocking channel 82 and use the rod to lift the connecting cross beam 92 to pull out the positioning member 91 from the socket 723, so that the leg 70 returns to its initial position under the action of the limiting spring 100. However, the above rod is not attached to the counting structure, resulting in inconvenient unlocking; thus, a special unlocking structure 110 is designed.

[0103] Referring to Figure 7 , the unlocking structure 110 includes a slideway seat 111, a maintaining spring 112, a sliding rod 113, and an unlocking member 114;

[0104] The sliding rod 113 slides through the slideway seat 111, and the slideway seat 111 is fixedly connected to the lower side of the carrying platform 10;

[0105] The unlocking member 114 is fixed to one end of the sliding rod 113. An unlocking surface 1141 is provided on the side of the unlocking member 114 facing the connecting cross beam 92. The unlocking surface 1141 can lift the connecting cross beam 92 and pull out the positioning member 91 from the socket 723 during the process of squeezing the lower surface of the connecting cross beam 92;

[0106] Both ends of the maintaining spring 112 are fixed to the unlocking member 114 and the sliding rod 113 respectively; the maintaining spring 112 can maintain the separation of the unlocking surface 1141 and the connecting cross beam 92.

[0107] During the unlocking process of the leg 70 and the locking mechanism 90, the sliding rod 113 moves along the guide of the slideway seat 111 towards the unlocking channel 82, and the unlocking surface 1141 of the unlocking member 114 can lift the connecting cross beam 92 and pull out the positioning member 91 from the socket 723 during the process of squeezing the lower surface of the connecting cross beam 92.

[0108] Further, referring to Figure 9 , a handle 1131 is fixedly provided at the other end of the sliding rod 113 away from the unlocking channel 82.

[0109] When the leg 70 is locked, hold the handle 1131, and thus the device can be pulled forward.

[0110] In summary, the device can be applied not only to counting the loading of trucks but also to counting the number of rope skips. When the device is used for rope skipping exercises, rubber layers are provided on the sides of the bearing platform 10 and the base 20 facing away from each other, which can reduce noise when exercising in spaces above the second floor. To ensure the accuracy of rope skip counting, it is designed to count only after the rope skipper truly jumps into the air. In this way, each time the rope skipper leaves the ground and lands again, the counter will increase by one, thus ensuring the accuracy and reliability of the counting result. This design effectively avoids incorrect counting caused by misoperation or other non-jumping actions, enabling rope skippers to focus more on their exercises without worrying about the accuracy of counting.

[0111] The above are only the preferred embodiments of the present invention patent and are not intended to limit the present invention patent. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention patent shall be included within the protection scope of the present invention patent.

Claims

1. Counting mechanism, characterized in that , including: A base (20) for contacting the ground; A bearing platform (10) located directly above the base (20); An elastic buffer structure (30) installed between the bearing platform (10) and the base (20); A contact sensor (40) for detecting whether a cargo is placed on the bearing platform (10); the contact sensor (40) is located between the base (20) and the bearing platform (10), and the contact sensor (40) is fixedly connected to the base (20); A sound - generating element (60); A single - chip microcomputer (50) electrically connected to the sound - generating element (60) and the contact sensor (40) respectively; Wherein, during the process of successively applying and canceling gravity on the bearing platform (10), the bearing platform (10) and the contact sensor (40) switch between disconnection and contact or between contact and disconnection; the single - chip microcomputer (50) can receive the switching actions of contact and disconnection of the contact sensor (40), and the single - chip microcomputer (50) accumulates and counts, and the cumulative total is played out as a specific digital sound through the sound - generating element (60); A trigger member (11) is fixedly arranged on the lower side of the bearing platform (10); a support member (21) is fixedly arranged on the upper side of the base (20); the contact sensor (40) is fixedly connected to the support member (21); During the process of successively applying and canceling gravity on the bearing platform (10), the bearing platform (10) and the contact sensor (40) switch between disconnection and contact or between contact and disconnection; The upper end of the support member (21) is bent to form a bent portion, and the contact sensor (40) is fixed to the bent portion of the support member (21); The lower end of the trigger member (11) is bent to form a trigger portion, and the trigger portion of the trigger member (11) is located directly below the detection end of the contact sensor (40); During the process of applying gravity on the bearing platform (10), the detection end of the contact sensor (40) is separated from the trigger portion of the trigger member (11); after the gravity on the bearing platform (10) is canceled and the trigger member (11) rises to the maximum height, the detection end of the contact sensor (40) just comes into contact with the trigger portion of the trigger member (11) again; Two legs (70) are provided. The two legs (70) are respectively distributed outside two adjacent sleeves (31) of the counting mechanism; the legs (70) are rotatably connected to the upper side of the base (20); a roller (71) is installed at the first end of the legs (70); the other end of the legs (70) is a clamping end (72) and the clamping end (72) is located between the base (20) and the bearing platform (10); A support (80) is fixed to the lower side of the bearing platform (10); the support (80) is provided with a slideway (81), and during the rotation of the legs (70), the clamping end (72) can enter the slideway (81); Among them, the clamping end (72) has a downward pressing inclined surface (721), and an inlet inclined surface (811) is arranged below the inlet of the slideway (81); when the clamping end (72) does not enter the slideway (81), the downward pressing inclined surface (721) faces the inlet inclined surface (811); during the process that the clamping end (72) enters the slideway (81), the downward pressing inclined surface (721) presses the inlet inclined surface (811) downward, and the bearing platform (10) drives the trigger member (11) to move away from the detection end of the contact sensor (40); meanwhile, when the clamping end (72) enters the slideway (81) to a preset position, the locking mechanism (90) locks the leg (70) and the support (80) together.

2. The counting mechanism according to claim 1, characterized in that , The detection end of the contact sensor (40) faces upward, and the trigger member (11) is located at the upper end of the detection end of the contact sensor (40); When a gravity is applied to the bearing platform (10), the trigger member (11) can press the detection end of the contact sensor (40) when moving downward; the trigger member (11) is made of flexible rubber material.

3. The counting mechanism according to claim 1, characterized in that , There are two limiting springs (100) in total; one end of the spring (100) is fixedly connected to the base (20); The other ends of the two springs (100) are respectively fixed to the legs (70); When the clamping end (72) does not enter the slideway (81), the spring (100) always pulls the leg (70) to contact with the sleeve (31).

4. The counting mechanism according to claim 1, characterized in that , The clamping ends (72) are all provided with sockets (723); the support (80) is provided with an unlocking channel (82), and the unlocking channel (82) is located directly above the slideway (81); The locking mechanism (90) includes a positioning member (91), a connecting cross beam (92), and a positioning spring (93); the connecting cross beam (92) is located in the unlocking channel (82), the upper ends of the two positioning members (91) are fixedly connected to the connecting cross beam (92), and the lower ends of the positioning members (91) penetrate into the slideway (81); the positioning spring (93) always pulls the lower ends of the positioning members (91) into the slideway (81); Among them, the upper side of the clamping end (72) located at the downward pressing inclined surface (721) is provided with an upward picking inclined surface (722); during the process that the clamping end (72) enters the slideway (81), the upward picking inclined surface (722) overcomes the elastic force of the positioning spring (93) and first squeezes the positioning member (91) upward. When the socket (723) moves to directly below the positioning member (91), the elastic force of the positioning spring (93) pulls the lower end of the positioning member (91) into the socket (723); thereby completing the positioning of the clamping end (72) / the leg (70).

5. The counting mechanism according to claim 4, wherein , The unlocking structure (110) includes a slideway seat (111), a maintaining spring (112), a sliding rod (113), and an unlocking member (114); The sliding rod (113) slidably penetrates through the slideway seat (111), and the slideway seat (111) is fixedly connected to the lower side of the bearing platform (10); The unlocking member (114) is fixed to one end of the sliding rod (113). An unlocking surface (1141) is provided on the side of the unlocking member (114) facing the connecting cross beam (92). The unlocking surface (1141) can lift the connecting cross beam (92) and pull out the positioning member (91) from the socket (723) during the process of squeezing the lower surface of the connecting cross beam (92). Both ends of the maintaining spring (112) are respectively fixed to the unlocking member (114) and the sliding rod (113). The maintaining spring (112) can maintain the separation of the unlocking surface (1141) and the connecting cross beam (92).

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