Small-angle unlatching device with counting function
By designing a small-angle breech-opening device, and utilizing pulleys and cam structures to count the number of times the breech-opening cannons are opened, the problem of large breech-opening handle rotation angle and inability to count is solved, thus improving the uniformity of breech-opening cannon operation and training efficiency.
Patent Information
- Application Number
- CN202520689280.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-14
AI Technical Summary
The existing breech-opening handle of the welcoming salute cannon has a large angle, which leads to inconsistent operation and makes it impossible to count the number of times the breech is opened.
Design a small-angle latching device with counting function, including a latching handle, a latching lever, a counter and a crank arm shaft. The small-angle latching is achieved and counted through a pulley and cam structure. The cam structure of the crank arm shaft is used to squeeze the counter contacts to count the number of latching operations.
It achieves small-angle latch opening, reduces the rotation angle of the latch handle, and has a latch opening count function, which improves the uniformity of operation and the convenience of training statistics.
Smart Images
Figure CN223925606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of salute cannon parts, specifically disclosing a small-angle latching device with a counting function. Background Technology
[0002] The existing ceremonial cannons have a problem during the breech-opening process: the large angle of the breech-opening handle causes soldiers in the ceremonial cannon unit to make excessive movements when opening the breech, resulting in inconsistent and unskilled breech-opening actions. In addition, the existing ceremonial cannons do not have a counting function for the number of times the breech is opened, making it difficult to conveniently count the training amount of breech-opening and breech-opening actions.
[0003] Therefore, it is necessary to develop a small-angle breech-opening device with a counting function to solve this problem, so as to further reduce the rotation angle of the breech-opening handle when the cannon is fully open and add a breech-opening count function to the cannon. Utility Model Content
[0004] To address the shortcomings of existing technologies, such as the large opening angle of existing ceremonial cannons, the lack of neat and efficient opening actions by soldiers, and the absence of a counting function for the number of openings, this invention proposes a small-angle opening device with a counting function.
[0005] This utility model is achieved through the following technical solution:
[0006] A small-angle latching device with counting function includes a latching handle 1, a latching lever 3, a counter 5, and a crank arm shaft 6;
[0007] The breech handle 1 is rod-shaped, with an end shaft 101 at one end of the rod and a pulley 102 in the middle of the rod; the end shaft 101 is engaged with the breech 4, and the pulley 102 is engaged with the pulley groove 301 provided on the breech lever 3.
[0008] The latch lever 3 is a plate-shaped body with a pulley groove 301 and a through hole; the through hole is engaged with the crank arm shaft 6.
[0009] The crank arm shaft 6 is assembled inside the breech 4. One end is engaged with the through hole of the breech lever 3, and the other end is a cam structure 601. The cam structure 601 is engaged with the counter 5. When the crank arm shaft 6 rotates, the cam structure 601 presses the contact 501 of the counter 5 to complete the counting and provide a breech opening count function.
[0010] Preferably, the small-angle latching device is further provided with a closing mechanism 2; the closing mechanism 2 includes a housing and a connecting rod; the connecting rod is connected to the latching lever 3 and the pulley 102, and a spring is installed inside the housing; during the latching process, the connecting rod moves with the latching lever 3 to compress the spring to store energy, providing energy for the latching process.
[0011] Furthermore, the closing mechanism 2 connecting rod joint and the opening lever 3 are connected by a pin.
[0012] Preferably, the counter 5 is installed inside the breech 4, and the counter display plate of the counter 5 is exposed from the hollowed-out side of the breech 4.
[0013] Furthermore, the breech handle 1 is located on the outer side of the breech 4 sidewall opposite to the counter 5.
[0014] Preferably, a crank arm is also mounted on the crank arm shaft 6.
[0015] Preferably, the end shaft 101 of the latch handle 1 is provided with a handle on the opposite side, and the handle is perpendicular to the rod body of the latch handle 1.
[0016] Preferably, the area of the pulley groove 301 is greater than the area of the pulley axle of the pulley 102; when the latch handle 1 is not in use, the pulley 102 is located at the bottom of the pulley groove 301, and when in use, the pulley 102 is pushed to the top of the pulley groove 301.
[0017] Furthermore, the rotation angle of the latch lever 3 is limited to 0–92°.
[0018] Furthermore, the rotation angle of the latch handle 1 is 0 to 51°.
[0019] The beneficial effects of this utility model are reflected in:
[0020] Compared with the existing technology, this utility model adds a function to count the number of times the breech is opened, and reduces the angle of the breech handle when the ceremonial cannon is fully opened, thereby avoiding the problem of excessive breech opening movements by the soldiers operating the ceremonial cannon. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of a small-angle latch opening device with counting function according to an embodiment of the present invention;
[0022] Figure 2 This is a diagram of the latch handle of this utility model;
[0023] Figure 3 This is a diagram of the latching lever of this utility model;
[0024] Figure 4 This is a diagram of the crank arm shaft of this utility model;
[0025] Figure 5 This is a diagram of the counter of this utility model;
[0026] Figure 6 This is a diagram of the shut-off mechanism of this utility model;
[0027] Figure 7 This is an installation diagram of the small-angle latch opening device with counting function according to an embodiment of the present invention;
[0028] Figure 8This is a schematic diagram illustrating the motion principle of a small-angle latching device with counting function according to an embodiment of this utility model. Detailed Implementation
[0029] To better illustrate the purpose, technical solution, and advantages of this utility model, further explanation is provided below in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to illustrate the technical effects of this utility model and are not intended to limit the scope of protection of this utility model.
[0030] Example 1
[0031] like Figures 1-8 As shown, a small-angle latching device with a counting function includes a latching handle 1, a closing mechanism 2, a latching lever 3, a counter 5, and a crank arm shaft 6.
[0032] The breech handle 1 is rod-shaped, with an end shaft 101 at one end of the rod and a pulley 102 in the middle of the rod; the end shaft 101 is engaged with the breech 4, and the pulley 102 is engaged with the pulley groove 301 provided on the breech lever 3.
[0033] The latch lever 3 is a plate-shaped body with a pulley groove 301 and a through hole; the through hole is engaged with the crank arm shaft 6.
[0034] The crank arm shaft 6 is assembled inside the breech 4. One end is engaged with the through hole of the breech lever 3, and the other end is a cam structure 601. The cam structure 601 is engaged with the counter 5. When the crank arm shaft 6 rotates, the cam structure 601 presses the contact 501 of the counter 5 to complete the counting and provide a breech opening count function.
[0035] The closing mechanism 2 includes a housing and a connecting rod; the connecting rod is connected to the latching lever 3 and the pulley 102, and a spring is installed inside the housing; during the latching process, the connecting rod moves with the latching lever 3 to compress the spring and store energy, providing energy for the latching process. The connecting rod joint of the closing mechanism 2 and the latching lever 3 are connected by a pin.
[0036] The counter 5 is installed inside the breech 4, and the counter display plate of the counter 5 protrudes from the side cutout of the breech 4. The breech release handle 1 is located on the outer side wall of the breech 4 opposite to the counter 5. A crank arm is also mounted on the crank arm shaft 6. A handle is provided on the opposite side of the end shaft 101 of the breech release handle 1, and the handle is perpendicular to the rod body of the breech release handle 1.
[0037] The area of the pulley groove 301 is larger than the area of the axle of the pulley 102; when the latch handle 1 is not in use, the pulley 102 is located at the bottom of the pulley groove 301, and when in use, the pulley 102 is pushed to the top of the pulley groove 301. The rotation angle of the latch lever 3 is limited to 0 to 92°; the rotation angle of the latch handle 1 is 0 to 51°.
[0038] The specific working process of this device is as follows:
[0039] When the latch handle is pushed clockwise, the pulley on the latch handle drives the latch lever and the crank arm shaft to rotate. The crank arm mounted on the crank arm shaft also rotates. The rotation of the crank arm causes the latch body to sink and thus open the latch. At the same time as the crank arm shaft rotates, the cam at the left end of the crank arm shaft presses the counter contact. Each time the latch opening action is completed, the crank arm shaft rotates once under the drive of the latch handle, completing one latch opening action count.
[0040] The principle behind the device of this invention enabling small-angle latch opening is as follows: In traditional welcoming salute cannons, the latch opening handle drives the latch opening lever, crank arm shaft, and crank arm to rotate. To achieve full latch opening, the latch opening handle needs to rotate at the same angle as the latch opening lever, crank arm shaft, and crank arm, which is 92°. With the device of this invention, while ensuring full latch opening, i.e., with the crank arm and crank arm shaft rotating at 92°, the new latch opening handle rotates at 51°.
Claims
1. A small-angle latch opening device with counting function, characterized in that, It includes a latch handle (1), a latch lever (3), a counter (5), and a crank arm shaft (6); The breech handle (1) is rod-shaped, with an end shaft (101) at one end and a pulley (102) in the middle of the rod; the end shaft (101) is engaged with the breech (4), and the pulley (102) is engaged with the pulley groove (301) on the breech lever (3); The latch lever (3) is a sheet-like body with a pulley groove (301) and a through hole; the through hole is engaged with the crank arm shaft (6); The crank arm shaft (6) is assembled inside the breech (4). One end is engaged with the through hole of the breech lever (3), and the other end is a cam structure (601). The cam structure (601) is engaged with the counter (5). When the crank arm shaft (6) rotates, the cam structure (601) squeezes the contact point (501) of the counter (5).
2. The small-angle latch opening device with counting function according to claim 1, characterized in that, The small-angle latching device is also provided with a closing mechanism (2); the closing mechanism (2) includes a housing and a connecting rod; the connecting rod is connected to the latching lever (3) and the pulley (102), and the housing is equipped with a spring; during the latching process, the connecting rod moves with the latching lever (3) to compress the spring to store energy, providing energy for the latching process.
3. The small-angle latch opening device with counting function according to claim 2, characterized in that, The closing mechanism (2) and the latch lever (3) are connected by a pin.
4. The small-angle latch opening device with counting function according to claim 1, characterized in that, The counter (5) is installed inside the breech (4), and the counter display plate of the counter (5) is exposed from the hollowed-out side of the breech (4).
5. The small-angle latch opening device with counting function according to claim 4, characterized in that, The breech handle (1) is located on the outside of the breech (4) side wall opposite to the counter (5).
6. The small-angle latch opening device with counting function according to claim 1, characterized in that, A crank arm is also mounted on the crank arm shaft (6).
7. The small-angle latch opening device with counting function according to claim 1, characterized in that, The latch handle (1) has a handle on the opposite side of the end shaft (101) of the latch handle (1), and the handle is perpendicular to the rod of the latch handle (1).
8. The small-angle latch opening device with counting function according to claim 1, characterized in that, The area of the pulley groove (301) is greater than the area of the pulley axle (102); when the latch handle (1) is not in use, the pulley (102) is located at the bottom of the pulley groove (301), and when in use, the pulley (102) is pushed to the top of the pulley groove (301).
9. The small-angle latch opening device with counting function according to claim 8, characterized in that, The rotation angle of the latch lever (3) is limited to 0 to 92°.
10. The small-angle latch opening device with counting function according to claim 9, characterized in that, The rotation angle of the latch handle (1) is 0 to 51°.