Mechanical counter

Abstract

The utility model relates to a mechanical counter which comprises a transmission shaft. The gear assembly is arranged on the transmission shaft in a rolling and sleeving mode and comprises a first gear, a first character wheel arranged on the outer surface of the first gear, a second gear arranged beside the first gear and a second character wheel arranged on the outer surface of the second gear, and a first groove is formed in the first gear; the shifting piece assembly is arranged beside the gear assembly and comprises a swing shaft, a first shifting piece and a second shifting piece, the swing shaft swings back and forth in the circumferential direction of the transmission shaft, the first shifting piece is driven by the swing shaft to shift a first gear to rotate, the second shifting piece is driven by the swing shaft to shift a second gear to rotate, and when the first shifting piece is meshed with the first groove, the second shifting piece shifts the second gear to rotate; the driving assembly controls the swing shaft to swing back and forth in the circumferential direction of the transmission shaft. Compared with the prior art, the counting accuracy is improved, and the convenience of increasing the counting digits is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring instruments, in particular to a mechanical counter. Background Art

[0002] With the continuous improvement of science and technology and the continuous progress of human society, more and more scientific counting is applied to various fields. Now, the endless variety of counting machines are very complex and expensive, and it is difficult to realize and use them in general fields. The most important thing is that this counter has a simple structure, is widely used, and is easy to maintain. The counter is a logic circuit that realizes this operation. In the digital system, the counter mainly counts the number of pulses to realize the functions of measurement, counting and control, and also has the function of frequency division. The counter is composed of a basic counting unit and some control gates. The counting unit is composed of a series of various triggers with the function of storing information. These triggers include RS triggers, T triggers, D triggers and JK triggers.

[0003] In the existing technology, counters can be divided into two types: synchronous counters and asynchronous counters according to whether the triggers in the counters flip simultaneously.

[0004] According to the increase and decrease of numbers in the counting process, counters can be divided into adder counters, subtraction counters and reversible counters. The one that continuously increases with the clock signal is an adder counter, the one that continuously decreases is a subtraction counter, and the one that can increase and decrease is called a reversible counter.

[0005] Most of the current counters can only count one, two or three digits, and cannot reduce or increase the number of digits.

[0006] For example, CN218413510U discloses a reed-driven mechanical counter, which includes a frame, a transmission shaft and a character wheel assembly, wherein the character wheel assembly is provided with a driving assembly, wherein the driving assembly includes a driving shaft, a fixed plate, a reed and a linkage plate, wherein the reed is installed on one side of the fixed plate, and the fixed plate is installed on the driving shaft, wherein the linkage plate is arranged between the first character wheel and the reed, wherein the end of the driving shaft after passing through the linkage plate and the character wheel assembly is arranged in a through hole provided in the side plate, wherein the side of the linkage plate is provided with a plurality of inclined grooves cooperating with the reed, wherein the inclination direction of the plurality of inclined grooves is the same rotation direction, wherein the outer periphery of the linkage plate is provided with a protrusion for driving the first character wheel to rotate, and when the driving shaft rotates for counting, the reed and the inclined groove can drive the linkage plate and the first character wheel to rotate in the same direction. However, the mechanical counter still cannot increase or decrease the number of technical digits, and has a complex structure and high cost for large-scale production. Utility Model Content

[0007] The purpose of the utility model is to provide a mechanical counter in order to overcome the defects of the prior art.

[0008] The purpose of the utility model can be achieved through the following technical solutions:

[0009] A mechanical counter, comprising:

[0010] transmission shaft;

[0011] A gear assembly rollingly sleeved on the transmission shaft comprises a first gear, a first character wheel arranged on the outer surface of the first gear, a second gear arranged beside the first gear, and a second character wheel arranged on the outer surface of the second gear, wherein the first gear has a first groove;

[0012] A paddle assembly provided beside the gear assembly, comprising a swing shaft swinging back and forth along the circumferential direction of the transmission shaft, a first paddle movably connected to the swing shaft and driven by the swing shaft to paddle the first gear to rotate, and a second paddle movably connected to the swing shaft and driven by the swing shaft to paddle the second gear to rotate, an end of the first paddle matches the shape of the first gear teeth to ensure that the first paddle does not contact the first gear teeth when swinging away from the first gear teeth, the second paddle is movably connected to the swing shaft, and an end of the second paddle matches the shape of the second gear teeth to ensure that the second paddle does not contact the second gear teeth when swinging away from the second gear teeth, and when the first paddle is engaged with the first groove, the second paddle paddles the second gear to rotate;

[0013] And a driving component for controlling the swing shaft to swing back and forth along the circumference of the transmission shaft.

[0014] Further, the first gear includes a first gear body and nine first gear teeth arranged along the circumference of the first gear body, and the first groove is located between the head and tail of the first gear teeth.

[0015] Furthermore, the length of the bottom of the first groove is sufficient to enable the second paddle to shift the second gear when the first paddle is engaged with the first groove.

[0016] Further, the first gear and the second gear are arranged identically.

[0017] Furthermore, the paddle assembly also includes a transmission part which is sleeved on the outer surface of the transmission shaft and swings back and forth along the circumference of the transmission shaft, and the transmission part is fixedly connected to the swing shaft.

[0018] Furthermore, the transmission part includes:

[0019] Transmission body;

[0020] A U-shaped groove extending from one end of the transmission body close to the driving shaft direction;

[0021] A first circular hole is provided on the transmission body close to one end of the driving shaft, the first circular hole passes through the upper and lower surfaces of the transmission body, and the transmission shaft is movably connected to the first circular hole;

[0022] And a second circular hole is arranged at one end of the transmission body away from the driving shaft direction, the second circular hole penetrates the upper and lower surfaces of the transmission body, and the swing shaft is fixedly connected to the second circular hole.

[0023] Furthermore, the driving assembly includes a cross bar that moves up and down in the U-shaped groove, a driving shaft fixedly connected to the cross bar, and a driving part that meshes with the driving shaft and drives the cross bar to move up and down in the U-shaped groove in a direction perpendicular to the transmission axis.

[0024] Furthermore, the driving portion includes a first circular portion meshing with the driving shaft, and a second circular portion fixedly connected to the first circular portion, and the second circular portion is not concentric with the first circular portion.

[0025] Furthermore, the driving assembly also includes a motor connected to the driving part and driving the driving part to rotate.

[0026] Furthermore, the transmission shaft is parallel to the swing shaft, and a square placement block is provided at one end of the transmission shaft.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] (1) The mechanical counter can count one, two, three or more digits. Multiple paddles can be provided while adding gears to increase the number of counting digits.

[0029] (2) The mechanical counter has a simple structure, can be applied in many aspects, and is low in cost and easy to produce.

[0030] (3) The mechanical counter drives the paddle of the paddle assembly to paddle the gear through the rotation of the motor, making the counting more accurate and less prone to damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the utility model.

[0032] Figure 2 It is a side view of the first gear of the utility model.

[0033] Figure 3 A side view of the drive unit.

[0034] Numbers in the figure:

[0035] 1-transmission, 101-square placement block, 2-gear assembly, 201-first gear, 202-first character wheel, 203-second gear, 204-second character wheel, 205-first groove, 206-first gear body, 207-first gear tooth, 208-first groove, 3-paddle assembly, 301-swing shaft, 302-first paddle, 303-second paddle, 304-transmission part, 305-U-shaped groove, 306-first circular hole, 307-first circular hole, 308-transmission body, 4-driving assembly, 401-cross bar, 402-driving shaft, 403-driving part, 404-first circular part, 405-second circular part. DETAILED DESCRIPTION

[0036] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0037] Features such as component models, material names, connection structures, control methods, etc. that are not clearly stated in this technical solution shall be deemed as common technical features disclosed in the prior art.

[0038] In the description of the present invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In the description of the present invention, "multiple" means two or more than two, unless otherwise specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a bolt connection or a welding connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In order to improve the counting accuracy and the convenience of increasing the number of counting digits, the utility model provides a mechanical counter, the structure of which can be seen in Figures 1 to 3 As shown, including:

[0041] Transmission shaft 1;

[0042] The gear assembly 2 is rollingly sleeved on the transmission shaft 1, and includes a first gear 201, a first character wheel 202 arranged on the outer surface of the first gear 201, a second gear 203 arranged beside the first gear 201, and a second character wheel 204 arranged on the outer surface of the second gear 203, and the first gear 201 has a first groove 205;

[0043] The paddle assembly 3 disposed beside the gear assembly 2 comprises a swing shaft 301 swinging back and forth along the circumferential direction of the transmission shaft 1, a first paddle 302 movably connected to the swing shaft 301 and driven by the swing shaft 301 to paddle the first gear 201 for rotation, and a second paddle 303 movably connected to the swing shaft 301 and driven by the swing shaft 301 to paddle the second gear 203 for rotation, the end of the first paddle 302 matches the gear tooth shape of the first gear 201 so that the first paddle 302 does not contact the gear teeth of the first gear 201 when the first paddle 302 swings away from the gear teeth of the first gear 201, the second paddle 303 is movably connected to the swing shaft 301, and the end of the second paddle 303 matches the gear tooth shape of the second gear 203 so that the second paddle 303 does not contact the gear teeth of the second gear 203 when the second paddle 303 swings away from the gear teeth of the second gear 203, and when the first paddle 302 is engaged with the first groove 205, the second paddle 303 paddles the second gear 203 for rotation;

[0044] And a driving component 4 for controlling the swing shaft 301 to swing back and forth along the circumference of the transmission shaft 1.

[0045] In some specific implementations, please refer to Figure 2 As shown, the first gear 201 includes a first gear body 206 and nine first gear teeth 207 arranged circumferentially along the first gear body 206 , and the first groove 205 is located between the head and tail of the first gear teeth 207 .

[0046] For more specific implementations, please refer to Figure 1 and Figure 2 As shown, the length of the bottom of the first groove 205 is sufficient to enable the second paddle 303 to paddle the second gear 203 when the first paddle 302 is engaged with the first groove 205 .

[0047] In some specific implementations, please refer to Figure 1 As shown, the first gear 201 and the second gear 203 are arranged in the same manner.

[0048] In some specific implementations, please refer to Figure 1As shown, the paddle assembly 3 further includes a transmission part 304 which is sleeved on the outer surface of the transmission shaft 1 and swings back and forth along the circumference of the transmission shaft 1 , and the transmission part 304 is fixedly connected to the swing shaft 301 .

[0049] For more specific implementations, please refer to Figure 1 As shown, the transmission part 304 includes:

[0050] Transmission body 308;

[0051] A U-shaped groove 305 extending from one end of the transmission body 304 close to the driving shaft 1;

[0052] A first circular hole 306 is provided at one end of the transmission body 304 close to the driving shaft 1, the first circular hole 306 penetrates the upper and lower surfaces of the transmission body 304, and the driving shaft 1 is movably connected to the first circular hole 306;

[0053] A second circular hole 307 is provided at one end of the transmission body 304 away from the driving shaft 1 . The second circular hole 307 penetrates the upper and lower surfaces of the transmission body 304 . The swing shaft 301 is fixedly connected to the second circular hole 307 .

[0054] For more specific implementations, please refer to Figure 1 As shown, the driving assembly 4 includes a cross bar 401 that moves up and down in the U-shaped groove 305, a driving shaft 402 fixedly connected to the cross bar 401, and a driving part 403 that meshes with the driving shaft 402 and drives the cross bar 401 to move up and down in the U-shaped groove 305 in a direction perpendicular to the transmission shaft 1.

[0055] For more specific implementations, please refer to Figure 1 and Figure 3 As shown, the driving portion 403 includes a first circular portion 404 meshing with the driving shaft 402 , and a second circular portion 405 fixedly connected to the first circular portion 404 , and the second circular portion 405 is not concentric with the first circular portion 404 .

[0056] For more specific implementations, please refer to Figure 1 As shown, the driving assembly 4 further includes a motor connected to the driving portion 403 and driving the driving portion 403 to rotate.

[0057] In some specific implementations, please refer to Figure 1 As shown, the transmission shaft 1 is parallel to the swing shaft 301 , and a square placement block 101 is provided at one end of the transmission shaft 1 .

[0058] The above embodiments may be implemented individually or in any combination of two or more.

[0059] The above implementation is described in more detail below in conjunction with specific examples.

[0060] Example 1

[0061] This embodiment provides a mechanical counter having double gears and capable of two-digit counting.

[0062] See also Figures 1 to 3 As shown, the mechanical counter includes a transmission shaft 1, a gear assembly 2 rollingly mounted on the transmission shaft 1, a paddle assembly 3 disposed beside the gear assembly 2 and driving the gear assembly 2 to count, and a driving assembly 4 controlling the swing shaft 301 to swing back and forth along the circumference of the transmission shaft 1 to drive the gear assembly 2 to count.

[0063] Specifically, the gear assembly includes a first gear 201, a first character wheel 202 arranged on the outer surface of the first gear 201, a second gear 203 arranged next to the first gear 201, and a second character wheel 204 arranged on the outer surface of the second gear 203. The first gear 201 has a first groove 205. The first gear 201 includes a first gear body 206 and nine first gear teeth 207 arranged circumferentially along the first gear body 206. The first groove 205 is located between the head and tail of the first gear teeth 207, and the length of the bottom of the first groove 205 is sufficient to enable the second paddle 303 to paddle the second gear 203 when the first paddle 302 is engaged with the first groove 205, and the first gear 201 and the second gear 203 are arranged in the same way.

[0064] Specifically, the paddle assembly 3 includes a paddle assembly 3 arranged next to the gear assembly 2, which includes a swing shaft 301 that swings back and forth along the circumferential direction of the transmission shaft 1, a first paddle 302 that is movably connected to the swing shaft 301 and driven by the swing shaft 301 to paddle the first gear 201 for rotation, and a second paddle 303 that is movably connected to the swing shaft 301 and driven by the swing shaft 301 to paddle the second gear 203 for rotation, the end of the first paddle 302 matches the gear tooth shape of the first gear 201 to ensure that the first paddle 302 does not contact the gear teeth of the first gear 201 when the first paddle 302 swings away from the gear teeth of the first gear 201, the second paddle 303 is movably connected to the swing shaft 301, and the end of the second paddle 303 matches the gear tooth shape of the second gear 203 to ensure that the second paddle 303 does not contact the gear teeth of the second gear 203 when the second paddle 303 swings away from the gear teeth of the second gear 203, and when the first paddle 302 is engaged with the first groove 205, the second paddle 303 paddles the second gear 203 to rotate.

[0065] Specifically, the transmission part 304 includes a transmission body 308, a U-shaped groove 305 extending from one end of the transmission body 304 close to the direction of the driving shaft 1, a first circular hole 306 provided at one end of the transmission body 304 close to the direction of the driving shaft 1, and a second circular hole 307 provided at one end of the transmission body 304 away from the direction of the driving shaft 1. The first circular hole 306 passes through the upper and lower surfaces of the transmission body 304, the transmission shaft 1 is movably connected to the first circular hole 306, the second circular hole 307 passes through the upper and lower surfaces of the transmission body 304, and the swing shaft 301 is fixedly connected to the second circular hole 307.

[0066] In addition, the transmission shaft 1 is parallel to the swing shaft 301 , and a square placement block 101 is provided at one end of the transmission shaft 1 , and the placement block 101 plays a supporting role.

[0067] Specifically, the driving assembly 4 includes a cross bar 401 that moves up and down in the U-shaped groove 305, a driving shaft 402 fixedly connected to the cross bar 401, a driving part 403 that meshes with the driving shaft 402 and drives the cross bar 401 to move up and down in the U-shaped groove 305 in a direction perpendicular to the transmission shaft 1, and a motor that drives the driving part 403 to rotate.

[0068] The working principle of this embodiment is as follows:

[0069] The rotation of the motor drives the driving part 403 to operate. Since the driving part 403 is meshed with the driving shaft 402, the driving part 403 rotates to drive the driving shaft 402 to move up and down. Since the driving shaft 402 is fixedly connected to the cross bar 401, the up and down movement of the driving shaft 402 drives the cross bar 401 to move up and down in the U-shaped groove 305 to lift the transmission body 308 or make the transmission body 308 fall. The transmission body 308 is driven by the cross bar 401 to swing. The swing shaft 301 fixedly connected to the transmission body 308 swings back and forth along the circumference of the transmission shaft 1 at the same time. The swing shaft 301 swings back and forth, causing the first paddle 302 fixedly connected to the swing shaft 301 to swing and mesh with the first gear teeth 207 in turn. When the first paddle 302 swings to mesh with the first groove 205, the second paddle 303 swings to drive the second gear 203 to rotate, and two-digit counting is performed.

[0070] Example 2

[0071] See also Figures 1 to 3 Compared with Example 1, most of them are the same, except that the driving portion 403 includes a first circular portion 404 meshing with the driving shaft 402, and a second circular portion 405 fixedly connected to the first circular portion 404, and the second circular portion 405 is not concentric with the first circular portion 404.

[0072] The second circular portion 405 is connected to the motor, and the motor drives the second circular portion 405 to rotate, and the first circular portion 404 fixedly connected to the second circular portion 405 rotates at the same time. Since the second circular portion 405 and the first circular portion 404 are not concentric, the first circular portion 404 rotates along the center of the second circular portion 405 to drive the driving shaft 402 to move up and down.

[0073] Example 3

[0074] Compared with the embodiment 1, most of them are the same, except that a third gear is added to the gear assembly and a third paddle is added to the paddle assembly 3 to complete the counting of three digits, and a second groove is provided on the second gear.

[0075] When the first paddle 302 swings to engage with the first groove 205 and the second paddle 303 swings to engage with the second groove, the third paddle swings to drive the third gear to rotate.

[0076] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A mechanical counter, characterized in that: include: Drive shaft (1); A gear assembly (2) rollingly sleeved on the transmission shaft (1), comprising a first gear (201), a first character wheel (202) arranged on the outer surface of the first gear (201), a second gear (203) arranged beside the first gear (201), and a second character wheel (204) arranged on the outer surface of the second gear (203), wherein the first gear (201) has a first groove (205); The paddle assembly (3) is arranged beside the gear assembly (2), comprising a swing shaft (301) swinging back and forth along the circumference of the transmission shaft (1), a first paddle (302) movably connected to the swing shaft (301) and driven by the swing shaft (301) to paddle the first gear (201) to rotate, and a second paddle (303) movably connected to the swing shaft (301) and driven by the swing shaft (301) to paddle the second gear (203) to rotate, wherein the end of the first paddle (302) matches the gear tooth shape of the first gear (201) to satisfy the first paddle (303). 2) when the second paddle (303) swings away from the gear teeth of the first gear (201), it does not contact the gear teeth of the first gear (201); the second paddle (303) is movably connected to the swing shaft (301); and the end of the second paddle (303) matches the shape of the gear teeth of the second gear (203) so that the second paddle (303) does not contact the gear teeth of the second gear (203) when the second paddle (303) swings away from the gear teeth of the second gear (203); when the first paddle (302) meshes with the first groove (205), the second paddle (303) drives the second gear (203) to rotate; And a driving component (4) for controlling the swing shaft (301) to swing back and forth along the circumference of the transmission shaft (1).

2. A mechanical counter according to claim 1, characterized in that: The first gear (201) comprises a first gear body (206) and nine first gear teeth (207) arranged circumferentially along the first gear body (206), and the first groove (205) is located between the head and tail of the first gear teeth (207).

3. A mechanical counter according to claim 2, characterized in that: The length of the bottom of the first groove (205) is sufficient to enable the second paddle (303) to paddle the second gear (203) when the first paddle (302) is engaged with the first groove (205).

4. A mechanical counter according to claim 1, characterized in that: The first gear (201) and the second gear (203) are arranged in the same manner.

5. A mechanical counter according to claim 1, characterized in that: The paddle assembly (3) further comprises a transmission part (304) sleeved on the outer surface of the transmission shaft (1) and swinging back and forth along the circumference of the transmission shaft (1); the transmission part (304) is fixedly connected to the swing shaft (301).

6. A mechanical counter according to claim 5, characterized in that: The transmission part (304) comprises: Transmission body (308); A U-shaped groove (305) extending from one end of the transmission body (308) close to the transmission shaft (1); a first circular hole (306) provided on the transmission body (308) close to one end in the direction of the transmission shaft (1), the first circular hole (306) penetrating the upper and lower surfaces of the transmission body (308), and the transmission shaft (1) is movably connected to the first circular hole (306); and a second circular hole (307) provided at one end of the transmission body (308) away from the transmission shaft (1), the second circular hole (307) penetrating the upper and lower surfaces of the transmission body (308), and the swing shaft (301) being fixedly connected to the second circular hole (307).

7. A mechanical counter according to claim 6, characterized in that: The driving assembly (4) comprises a cross bar (401) that moves up and down in the U-shaped groove (305), a driving shaft (402) fixedly connected to the cross bar (401), and a driving portion (403) that meshes with the driving shaft (402) and drives the cross bar (401) to move up and down in the U-shaped groove (305) in a direction perpendicular to the transmission shaft (1).

8. A mechanical counter according to claim 7, characterized in that: The driving portion (403) comprises a first circular portion (404) meshing with the driving shaft (402), and a second circular portion (405) fixedly connected to the first circular portion (404), wherein the second circular portion (405) is not concentric with the first circular portion (404).

9. A mechanical counter according to claim 7, characterized in that: The driving assembly (4) further comprises a motor connected to the driving portion (403) and driving the driving portion (403) to rotate.

10. A mechanical counter according to claim 1, characterized in that: The transmission shaft (1) is parallel to the swing shaft (301), and a square placement block (101) is provided at one end of the transmission shaft (1).

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