A high-efficiency locking device combining mechanical and electronic components

Abstract

This invention belongs to the interdisciplinary field of mechanical and electronic engineering, and discloses a high-efficiency locking and clamping device combining mechanical and electronic components. It includes: a locking mechanism for a high-pressure cylinder composed of upper and lower pressure plates, a pressure plate return spring, a pressure plate support screw, and a clamping screw; an actuator that converts the rotary motion of the knob into the vertical displacement motion of the clamping screw, composed of a plum blossom knob, a rotating screw, an eccentric disc, a ball bearing, a limit disc, a limit nut, a clamping screw return spring, and a clamping screw; a support mechanism connecting the locking mechanism and the actuator, composed of a compressor connector, a support block, a fixing screw, and a fixing nut; and a locking mechanism for the electronic operating system, composed of a sensing bracket, a sensing plate, a fixing nut, a sensing U-shaped block, a limit screw, and a limit block. This invention has advantages such as reliable safety performance, stable locking and clamping performance, convenient operation, and low cost, and is particularly suitable for applications in medical devices such as high-pressure water jets.

Description

Technical Field

[0001] This invention belongs to the field of mechanical and electronic engineering, and relates to a mechanical and electronic composite high-efficiency locking device, which is particularly suitable for, but not limited to, applications in medical devices such as high-pressure water jets. Background Technology

[0002] Currently, most compressors used in medical water jets both domestically and internationally are single-cylinder compressors. Their locking devices include the rotary clamping mechanism shown in document CN108066015A and the pole tooth clamping mechanism shown in document CN206350761U. These mechanisms are suitable for rotary clamping of the high-pressure cylinder of a single-cylinder compressor, but they are difficult to use for rotary clamping of the high-pressure cylinder of a compressor with two or more cylinders.

[0003] In addition, for safety reasons, medical water jets require an electronic locking mechanism. Currently, most of the electronic locking mechanisms used in the market are independent, which are difficult to synchronize with mechanical locking devices.

[0004] Therefore, there is an urgent need in the market for a mechanical and electronic composite locking device that is suitable for the high injection pressure of multi-cylinder compressors, and that is stable, reliable and low in cost, so as to popularize the application of medical water jets. Summary of the Invention

[0005] To address the aforementioned technical problems in the prior art, the present invention provides a high-efficiency locking device combining mechanical and electronic components, comprising: The locking mechanism of the high-pressure cylinder includes a lower pressure plate, an upper pressure plate, a pressure plate return spring, a pressure plate support screw, and a clamping screw. The clamping screw applies pressure to the upper pressure plate, which is transmitted to the lower pressure plate by the support screw, thereby locking the high-pressure cylinder. An actuator that converts the rotary motion of a knob into the up-and-down displacement motion of a clamping screw includes... The system comprises a plum blossom knob, a rotating screw, a fixing nut, an eccentric disc, a ball bearing, a limiting disc, a limiting nut, a clamping screw, a return spring, and a clamping screw. The eccentric disc includes a left eccentric disc and a right eccentric disc, which are mounted on the rotating screw. The ball bearing includes a left ball bearing and a right ball bearing, with the outer rings of the left and right eccentric discs interference-fitted with the inner rings of the left and right ball bearings. The limiting disc is fixed to the clamping screw by the limiting nut. The up-and-down movement of the clamping screw locks and releases the lower and upper pressure plates. The support mechanism connecting the locking mechanism and the actuator includes a compressor connector, a support block, support block fixing screws, and support block fixing nuts; the support block is fixed to the compressor connector by the support block fixing screws and support block fixing nuts.

[0006] Preferably, it also includes a locking mechanism for the electronic operating system, comprising a sensor bracket, a sensor plate, a sensor plate fixing nut, a sensor U-shaped block, a limit screw, and a limit block; the sensor plate is fixed to the rotating screw by the sensor plate fixing nut, the limit screw is fixed to the sensor plate, the sensor bracket is fixed to the compressor connector, and the limit block and the sensor U-shaped block are fixed to the sensor bracket.

[0007] Preferably, the fixing nut includes a left fixing nut and a right fixing nut, and the left eccentric plate and the right eccentric plate are tightened and fixed by the left fixing nut and the right fixing nut.

[0008] Preferably, the pressure plate return spring includes an upper pressure plate right return spring, a lower pressure plate right return spring, an upper pressure plate left return spring, and a lower pressure plate left return spring. The lower pressure plate and the upper pressure plate are supported by the upper pressure plate right return spring, the lower pressure plate right return spring, the upper pressure plate left return spring, and the lower pressure plate left return spring, which are sleeved on the pressure plate support screw. The return springs release the lower pressure plate and the upper pressure plate, and the high-pressure cylinder moves out of the compressor connector.

[0009] Preferably, the clamping screw is provided with an elongated elliptical hole, which is in right-angle cross clearance fit with the rotating screw.

[0010] Preferably, the reset spring of the clamping screw is arranged between the reset spring step of the clamping screw and the inner limit step of the reset spring of the support block.

[0011] Preferably, the support block is provided with a right support hole and a left support hole, which are locked by a pressure plate support screw; the support block is also provided with a rotating screw support hole, which is used to achieve rotational movement.

[0012] Preferably, the support block is provided with a guide hole for a clamping screw, and the up and down movement is achieved by clamping the screw; the support block is also provided with a left fixing hole and a right fixing hole.

[0013] Compared with the prior art, the technical solution provided by the present invention has the following advantages: First, the present invention adopts the technology of directly applying pressure to the contact surface of the upper and lower pressure plates on the high-pressure cylinder body to improve the stability of the medical water jet device.

[0014] Second, the present invention reduces noise, vibration and roughness (NVH) by adjusting the pressure.

[0015] Third, this invention integrates the mechanical locking device and the electronic system locking device, making the system easier to operate and improving efficiency. Attached Figure Description

[0016] Figure 1 This is an isometric view of a mechanical locking device according to an embodiment of the present invention; Figure 2 This is a plan view of the mechanical locking device in this embodiment; Figure 3 This is a cross-sectional view of the pressure plate reset device in this embodiment; Figure 4 This is an isometric view of the clamping screw in this embodiment; Figure 5 This is an isometric view of the support block in this embodiment; Figure 6 This is an isometric view of the support mechanism in this embodiment; Figure 7 This is an isometric view of the electronic safety locking device in this embodiment.

[0017] Explanation of markings in the diagram: 1—Compressor connector; 2—Lower pressure plate; 3—High-pressure cylinder; 4—High-pressure cylinder liner; 5—Upper pressure plate; 6—Clamping screw; 7—Right fixing nut; 8—Plume knob; 9—Right eccentric disc; 10—Right ball bearing; 11—Limiting disc; 12—Limiting nut; 13—Left ball bearing; 14—Left eccentric disc; 15—Left fixing nut; 16—Rotating screw; 17—Pressure plate support screw; 18—Upper limit nut of support block; 19—Support block; 20—Lower limit nut of support block; 21—Clamping screw return spring; 22—Induction bracket; 23—Induction plate; 2 4—Induction plate fixing nut; 25—Induction U-shaped block; 26—Support block fixing screw; 27—Support block fixing nut; 28—Right return spring of upper pressure plate; 29—Right return spring of lower pressure plate; 30—Left return spring of upper pressure plate; 31—Left return spring of lower pressure plate; 32—Limit screw; 33—Limit block; 61—Long elliptical hole; 62—Return spring step; 191—Right support hole; 192—Right fixing hole; 193—Left support hole; 194—Left fixing hole; 195—Rotating screw support hole; 196—Pressure screw guide hole; 197—Inner limit step of return spring. Detailed Implementation

[0018] In the following description, in order to clearly illustrate the structure and operation of the present invention, various directional terms will be used. However, terms such as "front," "rear," "left," "right," "outer," "inner," "outward," "inward," "up," and "down" should be understood as convenient terms and not as limiting terms. Furthermore, the term "inner" as used in the following description primarily refers to the direction closer to the drive shaft; the term "outer" primarily refers to the direction farther from the drive shaft; the term "axial" primarily refers to the direction parallel to the drive shaft; and the term "radial" primarily refers to the direction perpendicular to the drive shaft.

[0019] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0020] like Figure 1 As shown, this embodiment discloses a mechanical and electronic composite high-efficiency locking device, comprising: a locking mechanism for a high-pressure cylinder consisting of a lower pressure plate 2, an upper pressure plate 5, a pressure plate return spring, a pressure plate support screw 17, and a clamping screw 6; an actuator that converts the rotational motion of the knob into the up-and-down displacement motion of the clamping screw 6, consisting of a plum blossom knob 8, a rotating screw 16, a fixing nut, an eccentric disc, a ball bearing, a limiting disc 11, a limiting nut 12, a clamping screw return spring 21, and a clamping screw 6; a support mechanism that connects the locking mechanism and the actuator, consisting of a compressor connector 1, a support block 19, a support block fixing screw 26, and a support block fixing nut 27; and a locking mechanism of an electronic operating system consisting of a sensing bracket 22, a sensing plate 23, a sensing plate fixing nut 24, a sensing U-shaped block 25, a limiting screw 32, and a limiting block 33.

[0021] like Figure 2 As shown, the clamping screw 6 of the locking mechanism applies pressure to the upper pressure plate 5, which is transmitted to the lower pressure plate 2 by the pressure plate support screw 17, locking the high-pressure cylinder 3. A left eccentric disc 14 and a right eccentric disc 9 are arranged on the rotating screw 16 of the actuator. The left eccentric disc 14 and the right eccentric disc 9 are tightened and fixed by the left fixing nut 15 and the right fixing nut 7. The outer rings of the left eccentric disc 14 and the right eccentric disc 9 are interference-fitted with the inner rings of the left ball bearing 13 and the right ball bearing 10. When the eccentric discs rotate with the rotating screw 16, the difference in diameter between the eccentric discs pushes the limiting disc 11 to move up and down. The limiting disc 11 is fixed to the clamping screw 6 by the limiting nut 12. The up and down movement of the clamping screw 6 causes the lower pressure plate 2 and the upper pressure plate 5 to lock and loosen. A clamping screw return spring 21 is arranged between the return spring step 62 of the clamping screw 6 and the return spring inner limiting step 197 of the support block 19.

[0022] like Figure 3 As shown, the lower pressure plate 2 and the upper pressure plate 5 are supported by the upper pressure plate right return spring 28, the lower pressure plate right return spring 29, the upper pressure plate left return spring 30, and the lower pressure plate left return spring 31, which are sleeved on the pressure plate support screw 17. Once the clamping screw 6 moves upward, the pressure plate return springs release the upper and lower pressure plates, and the high pressure cylinder 3 can be moved out of the compressor connector 1.

[0023] like Figure 4 As shown, the clamping screw 6 is provided with an elongated elliptical hole 61, which is in right-angle cross clearance fit with the rotating screw 16.

[0024] like Figure 5As shown, the support block 19 is provided with a right support hole 191 and a left support hole 193, which are locked by a pressure plate support screw 17; the support block 19 is provided with a rotating screw support hole 195, which is rotated by a rotating screw 16; the support block 19 is provided with a clamping screw guide hole 196, which is moved up and down by a clamping screw 6; the support block 19 is provided with a left fixing hole 194 and a right fixing hole 192.

[0025] like Figure 6 As shown, the support block 19 is fixed to the compressor connector 1 by the support block fixing screw 26 and the support block fixing nut 27.

[0026] like Figure 7 As shown, the sensing plate 23 of the locking mechanism of the electronic operating system is fixed to the rotating screw 16 by the sensing plate fixing nut 24. The limiting screw 32 is fixed to the sensing plate 23, the sensing bracket 22 is fixed to the compressor connector 1, and the limiting block 33 and the sensing U-shaped block 25 are fixed to the sensing bracket 22. The electronic operating system unlocks and starts working only when the sensing U-shaped block 25 senses the passage of the sensing plate 23; otherwise, it remains locked. The limiting screw 32 cooperates with the limiting block 33 to limit the sensing plate 23, preventing the rotating screw 16 from rotating excessively.

[0027] The phase of the sensing plate 23 is determined by the position of the lower pressure plate 2 and the upper pressure plate 5 determined by the large and small diameters of the right eccentric disk 9 and the left eccentric disk 14 through the rotating screw 16, thereby ensuring that the system is locked and cannot be started when the high-pressure cylinder is not in place, thus playing a safety protection role.

[0028] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A mechanical and electronic combination lock high efficiency deadlocking device, characterized in that include: The locking mechanism of the high-pressure cylinder includes a lower pressure plate (2), an upper pressure plate (5), a pressure plate return spring, a pressure plate support screw (17), and a clamping screw (6). The clamping screw (6) applies pressure to the upper pressure plate (5), which is transmitted to the lower pressure plate (2) by the support screw (17) to lock the high-pressure cylinder (3). An actuator that converts the rotary motion of the knob into the up-and-down displacement motion of the clamping screw (6) includes... The components include a plum blossom knob (8), a rotating screw (16), a fixing nut, an eccentric disc, a ball bearing, a limiting disc (11), a limiting nut (12), a clamping screw return spring (21), and a clamping screw (6). The eccentric disc includes a left eccentric disc (14) and a right eccentric disc (9), which are mounted on the rotating screw (16). The ball bearing includes a left ball bearing (13) and a right ball bearing (10). The outer rings of the left eccentric disc (14) and the right eccentric disc (9) are interference-fitted with the inner rings of the left ball bearing (13) and the right ball bearing (10). The limiting disc (11) is fixed to the clamping screw (6) by the limiting nut (12). The up-and-down movement of the clamping screw (6) causes the lower pressure plate (2) and the upper pressure plate (5) to lock and unlock. The support mechanism connecting the locking mechanism and the actuator includes a compressor connector (1), a support block (19), a support block fixing screw (26), and a support block fixing nut (27); the support block (19) is fixed to the compressor connector (1) by the support block fixing screw (26) and the support block fixing nut (27).

2. The mechanical and electronic combination lock high efficiency deadlocking device as claimed in claim 1, wherein: It also includes a locking mechanism for the electronic operating system, including a sensor bracket (22), a sensor plate (23), a sensor plate fixing nut (24), a sensor U-shaped block (25), a limit screw (32), and a limit block (33); the sensor plate (23) is fixed to the rotating screw (16) by the sensor plate fixing nut (24), the limit screw (32) is fixed to the sensor plate (23), the sensor bracket (22) is fixed to the compressor connector (1), and the limit block (33) and the sensor U-shaped block (25) are fixed to the sensor bracket (22).

3. The mechanical and electronic combination lock high efficiency deadlocking device as claimed in claim 1, wherein: The fixing nut includes a left fixing nut (15) and a right fixing nut (7), and the left eccentric disk (14) and the right eccentric disk (9) are tightened and fixed by the left fixing nut (15) and the right fixing nut (7).

4. The mechanical and electronic combination lock high efficiency deadlocking device as claimed in claim 1, wherein: The pressure plate reset spring includes an upper pressure plate right reset spring (28), a lower pressure plate right reset spring (29), an upper pressure plate left reset spring (30), and a lower pressure plate left reset spring (31). The lower pressure plate (2) and the upper pressure plate (5) are supported by the upper pressure plate right reset spring (28), the lower pressure plate right reset spring (29), the upper pressure plate left reset spring (30), and the lower pressure plate left reset spring (31) which are sleeved on the pressure plate support screw (17). The reset springs release the lower pressure plate (2) and the upper pressure plate (5), and the high pressure cylinder (3) moves out of the compressor connector (1).

5. The mechanical and electronic combination lock high efficiency deadlocking device as claimed in claim 1, wherein: The clamping screw (6) is provided with an elongated elliptical hole (61), which is in right-angle cross clearance fit with the rotating screw (16).

6. The mechanical and electronic combination lock high efficiency deadlocking device as claimed in claim 1, wherein: A reset spring (21) of the clamping screw (6) is arranged between the reset spring step (62) of the clamping screw (6) and the inner limit step (197) of the reset spring of the support block (19).

7. The mechanical and electronic combination lock high efficiency deadlocking device as claimed in claim 1, wherein: The support block (19) is provided with a right support hole (191) and a left support hole (193), which are locked by a pressure plate support screw (17); the support block (19) is also provided with a rotating screw support hole (195), which is rotated by a rotating screw (16).

8. The mechanical and electronic combination lock high efficiency deadlocking device as claimed in claim 1, wherein: The support block (19) is provided with a clamping screw guide hole (196), and the up and down movement is realized by clamping screw (6); the support block (19) is also provided with a left fixing hole (194) and a right fixing hole (192).

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