Sand shaking clamping mechanism

By designing the clamping seat and impactor, the problem of serious energy waste in existing technologies is solved, and the efficient compaction of quartz sand in the fuse is achieved, thus improving the production quality of the fuse.

CN224342809UActive Publication Date: 2026-06-09MERSEN ELECTRICAL SYST (ZHEJIANG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MERSEN ELECTRICAL SYST (ZHEJIANG) CO LTD
Filing Date
2025-07-24
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In the existing technology, the rigid connection between the turntable claw and the turntable causes most of the impact force generated by the knocking to be absorbed or transmitted to the turntable as a whole, resulting in serious energy waste, and the compactness of the quartz sand in the fuse is difficult to guarantee.

Method used

The design of the clamping seat and the impacting component allows the clamping seat to vibrate back and forth between the striking and impacting components. The reciprocating vibration is generated by the collision feedback between the clamping seat and the impacting component, which improves the utilization rate of the impact force and enhances the compaction effect of the quartz sand.

Benefits of technology

It improves the compactness of quartz sand in the fuse, reduces energy waste, and enhances the sand vibration effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a sand shaking clamping mechanism which comprises a mounting plate, a clamping base and a clamping assembly. The mounting plate is used for being connected with a sand filling machine body. The clamping base is rotationally connected with the mounting plate. The clamping base is connected with the clamping assembly. The clamping base is provided with a knocking piece on the opposite side of a striking piece. The striking piece is used for colliding with the clamping base. In use, the knocking piece knocks the clamping base, the clamping base vibrates and drives the fuse to vibrate. Since the clamping base is rotationally connected with the mounting plate, the clamping base shakes and contacts the striking piece, the striking piece strikes the base, the clamping base vibrates back and forth between the striking piece and the knocking piece, the utilization rate of the impact force is improved, the energy waste is reduced, and the sand shaking effect is improved.
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Description

Technical Field

[0001] This application relates to the field of fuse processing equipment, and in particular to a vibrating sand clamping mechanism. Background Technology

[0002] A fuse is an electrical device that breaks the circuit by melting its fusible element when the current exceeds a specified value. Fuses are widely used in high and low voltage power distribution systems, control systems, and electrical equipment. As a protector against short circuits and overcurrents, fuses are one of the most commonly used protective devices.

[0003] Reference Figure 1 Existing fuses include a housing, a latch, and two inserts. The latch connects to one side of the housing, and two inserts are located at opposite ends of the housing. The housing contains a fusible element and silica sand. The silica sand has good thermal conductivity and insulation properties, serving as an explosion-proof and arc-extinguishing agent to prevent sparks from being generated during the short-circuit burnout of the fusible element. The density of the silica sand inside the fuse directly affects the fuse's manufacturing quality.

[0004] Chinese Patent CN220963174U discloses a sand-filling device for fuse tubes, including a turntable mechanism, a sand storage tank, and two or more sand-filling mechanisms. The turntable mechanism includes a turntable and multiple turntable grippers. Each gripper is circumferentially and evenly spaced along the outer periphery of the turntable, and its extended end can movably hold or release the fuse tube. The grippers rotate with the turntable. The sand storage tank contains filler and is mounted above the turntable mechanism. Each sand-filling mechanism is connected to the sand storage tank and circumferentially spaced along the outer periphery of the turntable mechanism, used for sand-filling the fuse tube. During sand filling, a striking device, typically a pneumatic hammer, is used to strike the turntable grippers.

[0005] Regarding the aforementioned technologies, the turntable grippers and the turntable are usually rigidly fixed together. Most of the impact force generated by the pneumatic hammer is absorbed by the rigid structure or transmitted to the turntable as a whole, with only a small portion being converted into effective sand-vibrating kinetic energy, resulting in serious energy waste. Utility Model Content

[0006] In order to make full use of the impact force generated by the striking of the striking element and reduce energy waste, this application provides a sand-vibrating clamping mechanism.

[0007] The sand-vibrating clamping mechanism provided in this application adopts the following technical solution:

[0008] A sand-filling clamping mechanism includes a mounting plate, a clamping seat, and a clamping assembly. The mounting plate is connected to the body of a sand-filling machine. The clamping seat is rotatably connected to the mounting plate. The clamping seat is connected to the clamping assembly, which is used to clamp a fuse. A striking element is located on one side of the tangential direction of the rotation axis of the clamping seat. An impact element is located on the opposite side of the clamping seat where the striking element is located. The impact element is used to collide with the clamping seat.

[0009] By adopting the above technical solution, the existing technology usually uses high-frequency vibration in the vertical or horizontal direction during the sand filling process. When vibrating in the horizontal direction, the vertical inertial potential energy of the quartz sand in the compaction direction is small, resulting in poor compaction of the quartz sand in the fuse. When vibrating in the vertical direction, the quartz sand may be scattered after compaction, and in severe cases, the quartz sand may be shaken out of the fuse, thus affecting the compaction of the quartz sand in the fuse. In order to improve the above problems, in this application, when in use, the striking part strikes the clamping seat, the clamping seat vibrates and drives the fuse to vibrate. Since the clamping seat is rotatably connected to the mounting plate, the clamping seat shakes and contacts the striking part, causing the striking part to strike the base. This causes the clamping seat to vibrate back and forth between the striking part and the striking part. The reciprocating vibration is formed by the collision feedback between the clamping seat and the striking part, which converts the impact force into continuous sand vibration kinetic energy, improves the utilization rate of the impact force, reduces energy waste, and improves the sand vibration effect.

[0010] Optionally, the clamping assembly includes clamping plates and abutting members. The clamping plates are provided with a plurality of clamping plates, and the plurality of clamping plates are provided with clamping cavities for placing fuses at intervals. The abutting members are used to drive the clamping plates to clamp the fuses.

[0011] By adopting the above technical solution, when in use, the clamping member drives the clamping plate to press against the fuse, so that the clamping plate clamps the fuse, thereby making the fuse stably connected to the clamping plate.

[0012] Optionally, the clamping plate is rotatably connected to the clamping seat, and the clamping element is a spring. One end of the spring is connected to the clamping seat, and the other end of the spring is connected to the clamping plate. The spring is used to drive the clamping plate to rotate and cause the clamping plate to clamp the fuse.

[0013] By adopting the above technical solution, the operator can rotate the clamping plates to move them away from each other, thus facilitating the entry of the fuse into the clamping cavity. When the operator releases the clamping plates, the spring drives the clamping plates to rotate, causing them to approach and press against the fuse, thus facilitating the clamping plates to hold the fuse.

[0014] Optionally, a limiting plate is connected to the top of the clamping plate. The limiting plate and the clamping seat are respectively located on opposite sides of the clamping cavity. The limiting plate is used to contact the fuse.

[0015] By adopting the above technical solution and adding a limiting plate, when in use, both ends of the fuse contact the clamping seat and the limiting plate respectively, so that the fuse is stably connected to the clamping plate.

[0016] Optionally, the clamping seat has a relief groove, which is connected to the clamping cavity. The latch is inserted into the clamping seat through the relief groove. When the fuse is located in the clamping cavity, the latch is located in the relief groove.

[0017] By adopting the above technical solution, when clamping the fuse, the fuse is placed in the clamping cavity, the latch is inserted into the relief groove, and the latch is inserted into the clamping seat through the relief groove, thereby improving the connection stability between the clamping seat and the fuse.

[0018] Optionally, a sand-draining port is provided at the bottom of the clamping seat, and when the buckle is placed in the relief groove, the housing and the bottom of the clamping seat are spaced apart.

[0019] By adopting the above technical solution and adding a sand leakage port, the accumulation of quartz sand at the bottom of the clamping seat can be reduced.

[0020] Optionally, the relief groove is open at one end, and the open end of the relief groove is provided with a first guide surface, which facilitates the fastener to enter the relief groove.

[0021] By adopting the above technical solution, a first guide surface is added to facilitate the entry of the fuse latch into the relief groove, thereby facilitating the guide of the fuse into the clamping cavity and thus facilitating the clamping of the fuse.

[0022] Optionally, the limiting plate is provided with a second guide surface, which facilitates the entry of the fuse into the clamping cavity.

[0023] By adopting the above technical solution, when clamping the fuse, the fuse contacts the second guide surface, and moving the fuse causes the fuse to push the limiting plate to move, thereby driving the clamping plates to move away from each other, so as to facilitate the fuse entering the clamping cavity.

[0024] Optionally, the clamping plate includes a connecting part and a clamping part. The connecting part is rotatably connected to the clamping seat, and the clamping part is detachably connected to the connecting part. The clamping part is used to contact the fuse.

[0025] By adopting the above technical solution, the clamping part can be detachably connected to the connecting part. When the clamping part is damaged and needs to be replaced, the clamping part can be removed from the connecting part, which facilitates the replacement of the clamping part separately and reduces costs.

[0026] Optionally, the impact component includes a support plate and an impact block, wherein the support plate is connected to the mounting plate and the impact block is threadedly connected to the support plate.

[0027] By adopting the above technical solution, the striking component strikes the clamping seat, causing the clamping seat to vibrate, and the clamping seat comes into contact with the impact component. The impact block collides with the clamping seat, thereby causing the clamping seat to vibrate back and forth between the impact component and the striking component. The impact block is threadedly connected to the support plate, which facilitates the disassembly and assembly of the impact block and makes it easy to replace the impact block.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. During use, the striking component strikes the clamping seat, causing the clamping seat to vibrate and drive the fuse to vibrate. Because the clamping seat is rotatably connected to the mounting plate, the clamping seat shakes and comes into contact with the striking component, causing the striking component to strike the base. This causes the clamping seat to vibrate back and forth between the striking component and the striking component, improving the utilization rate of the impact force, thereby reducing energy waste and improving the sand-vibrating effect.

[0030] 2. In use, the clamping member drives the clamping plate to press against the fuse, so that the clamping plate holds the fuse, thereby making the fuse stably connected to the clamping plate;

[0031] 3. Clamping the fuse: The operator rotates the clamping plates to move them away from each other, thus facilitating the fuse to enter the clamping cavity. The operator then releases the clamping plates, and the spring drives the clamping plates to rotate, bringing them closer to and pressing against the fuse, thus facilitating the clamping plates to hold the fuse. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of a fuse in existing technology.

[0033] Figure 2 This is a three-dimensional structural diagram of this embodiment, used to show the state of clamping the fuse.

[0034] Figure 3 This is a three-dimensional structural diagram of this embodiment.

[0035] Figure 4 This is a top view of this embodiment.

[0036] Figure 5 This is the embodiment. Figure 4 Sectional view along the AA direction.

[0037] Figure 6 This is the embodiment. Figure 4 Sectional view along the BB direction.

[0038] Figure 7 This is the embodiment. Figure 4 A cross-sectional view along the CC direction.

[0039] Explanation of reference numerals in the attached drawings: 1. Fuse; 2. Housing; 3. Insert; 4. Buckle; 100. Clamping seat; 110. Base; 111. Sand drain; 120. Connecting plate; 121. First plate; 122. Second plate; 123. Positioning groove; 124. Rotation groove; 125. Connecting rod; 130. Fixing plate; 131. Striking block; 132. First rod; 140. Clearance groove; 141. First groove; 142. Second groove; 143. 144. Connecting hole; 150. First guide surface; 151. First block; 151. Connecting groove; 200. Impact member; 210. Support plate; 220. Impact block; 221. Second rod; 300. Clamping assembly; 310. Clamping plate; 311. Connecting part; 312. Clamping part; 313. Limiting plate; 314. Second guide surface; 315. Mounting groove; 320. Spring; 330. Clamping cavity; 400. Mounting plate; 410. Rotating rod. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 2-7 This application will be described in further detail.

[0041] This application discloses a sand-vibrating clamping mechanism. (Refer to...) Figure 2 and Figure 3 A vibrating sand clamping mechanism includes a clamping base 100 and an impact member 200. The clamping base 100 is connected to a clamping assembly 300 for clamping a fuse 1. The impact member is located on one side of the clamping base 100, and the impact member 200 is located on the side of the clamping base 100 away from the impact member. The impact member 200 is used to collide with the clamping base 100. The impact member strikes the clamping base 100, causing the clamping base 100 to vibrate and come into contact with the impact member 200, resulting in the impact member 200 colliding with the clamping base 100 and causing the clamping base 100 to vibrate back and forth, thereby reducing energy waste and improving the vibration effect.

[0042] Reference Figure 3 and Figure 4 The clamping base 100 is C-shaped and includes a base 110, a connecting plate 120, and a fixing plate 130. The width direction of the base 110 is consistent with the width direction of the mounting plate 400, and the length direction of the connecting plate 120 is consistent with the length direction of the fixing plate 130. The connecting plate 120 and the fixing plate 130 are respectively connected to the top ends of the base 110. The connecting plate 120 includes a first plate 121 and a second plate 122. The length direction of the first plate 121 is consistent with the length direction of the second plate 122. The bottom of the first plate 121 is connected to the top of the base 110. A positioning groove 123 is opened at the end of the first plate 121 near the fixing plate 130. The second plate 122 is inserted into the first plate 121 through the positioning groove 123, and the second plate 122 is detachably connected to the first plate 121 by bolts. The bolts pass through the second plate 122 along the length direction of the base 110 and are threaded to the first plate 121.

[0043] Reference Figure 3 and Figure 5 The top of the first plate 121 is rotatably connected to the mounting plate 400. One end of the mounting plate 400 along its length is connected to the rotating rod 410. The length direction of the rotating rod 410 is consistent with the width direction of the mounting plate 400. The rotating rod 410 passes through the mounting plate 400 and the first plate 121. The first plate 121 is rotatably connected to the rotating rod 410.

[0044] Reference Figure 5 A striking block 131 is detachably connected to the end of the fixed plate 130 away from the connecting plate 120. The striking block 131 is connected to a first rod 132, which is threaded to the fixed plate 130. The base 110 has a sand-draining port 111. The mounting plate 400 is used to connect to the turntable. The mounting plate 400 is detachably connected to the turntable by bolts, which pass through the mounting plate 400 and are threaded to the turntable. The striking element is located on the side of the clamping seat 100 along the length of the clamping seat 100 away from the mounting plate 400, and the impact element 200 is located on the other side of the clamping seat 100.

[0045] Reference Figure 3 and Figure 6 The clamping assembly 300 includes clamping plates 310 and abutting members. Two clamping plates 310 are provided, which are spaced apart along the width direction of the base 110, and the two clamping plates 310 form a clamping cavity 330 for placing the fuse 1. The connecting plate 120 and the fixing plate 130 are respectively provided on both sides of the clamping cavity 330.

[0046] Reference Figure 3 and Figure 7 The clamping plate 310 includes a connecting part 311 and a clamping part 312. The clamping part 312 is used to contact the fuse 1. The clamping part 312 is detachably connected to the connecting part 311 by bolts. The bolts pass through the clamping part 312 and are threaded to the connecting part 311. The length direction of the clamping part 312 is consistent with the length direction of the connecting plate 120. A limiting plate 313 is connected to the top of the clamping part 312. The bottom of the limiting plate 313 is used to contact the fuse 1. The limiting plate 313 has a second guide surface 314 along the length direction of the base 110 and near the end of the connecting plate 120. The second guide surface 314 is inclined, and the end of the second guide surface 314 near the connecting plate 120 is inclined towards the side away from the other limiting plate 313.

[0047] Reference Figure 3 and Figure 5A clearance groove 140 is provided on the side of the connecting plate 120 near the clamping cavity 330. The length direction of the clearance groove 140 is consistent with the length direction of the connecting plate 120. The buckle 4 is inserted into the connecting plate 120 through the clearance groove 140. The clearance groove 140 includes a first groove 141, a second groove 142, and a connecting hole 143. The length direction of the first groove 141 is consistent with the length direction of the first plate 121. The first groove 141 is located on the first plate 121 and is open at both ends along its length direction. The second groove 142 is located on the second plate 122. The length direction of the second groove 142 is consistent with the length direction of the second plate 122. The second groove 142 is vertically open at both ends along its length direction, and the first groove 141 and the second groove 142 are connected. The connecting hole 143 is located on the inner wall of the second groove 142 near the clamping cavity 330. The connecting hole 143 is used to connect the clamping cavity 330 and the second groove 142. The top of the connecting hole 143 is open.

[0048] Reference Figure 2 and Figure 3 The connecting hole 143 has a first guide surface 144 on both inner walls along the width direction of the base 110. The first guide surface 144 is located at the top of the connecting hole 143, and the first guide surface 144 is inclined and the tops of the two first guide surfaces 144 are far apart from each other. When the buckle 4 contacts the bottom inner wall of the relief groove 140, the bottom of the housing 2 is spaced apart from the base 110.

[0049] Reference Figure 6 and Figure 7 The first plate 121 has rotating grooves 124 at both ends along the width direction of the mounting plate 400. A connecting rod 125 is connected in the rotating groove 124, and the length direction of the connecting rod 125 is consistent with the length direction of the connecting plate 120. Each connecting part 311 is rotatably connected in the rotating groove 124. The connecting rod 125 passes through one end of the connecting part 311 in the vertical direction, and the connecting part 311 is rotatably sleeved on the connecting rod 125.

[0050] Reference Figure 6 The first plate 121 is connected to the first block 150 on the side away from the fixed plate 130. The first block 150 is located between the two clamping plates 310. The first block 150 has connecting grooves 151 at both ends along the width direction of the mounting plate 400. The depth direction of the connecting grooves 151 is consistent with the width direction of the mounting plate 400. The connecting part 311 has a mounting groove 315 at the end near the first block 150. The depth direction of the mounting groove 315 is consistent with the width direction of the connecting part 311.

[0051] Reference Figure 6 and Figure 7Two clamping elements are provided, each consisting of a spring 320. Each spring 320 is connected to a connecting part 311, with one end connected to the inner wall of the mounting groove 315 and the other end connected to the inner wall of the connecting groove 151. The spring 320 drives the clamping plate 310 to rotate and clamp the fuse 1. When clamping the fuse 1, the clamping plate 310 is rotated, causing the two clamping plates 310 to move away from each other, thus facilitating the entry of the fuse 1 into the clamping cavity 330. Once the fuse 1 is inside the clamping cavity 330, the spring 320 drives the clamping plate 310 to rotate, causing the clamping plate 310 to clamp the fuse 1, thereby ensuring the fuse 1 is stably connected within the clamping cavity 330.

[0052] Reference Figure 5 The impact component 200 includes a support plate 210 and an impact block 220. The support plate 210 is connected to the bottom of the mounting plate 400. The impact block 220 is connected to a second rod 221, which is threaded to the support plate 210. The impact block 220 is located on the side of the support plate 210 near the connecting plate 120.

[0053] The implementation principle of the sand-vibrating clamping mechanism in this application embodiment is as follows: When in use, the fuse 1 is placed in the clamping cavity 330, and the clamping plate 310 clamps the fuse 1. The striking element strikes the striking block 131, causing the base 110 to vibrate and drive the fuse 1 to vibrate. Due to inertia, the base 110 shakes and comes into contact with the impact block 220. The impact block 220 strikes the base 110, causing the base 110 to vibrate back and forth between the impact block 220 and the striking block 131, thereby reducing energy waste and improving the sand-vibrating effect.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sand-vibrating clamping mechanism, characterized in that: The device includes a mounting plate (400), a clamping seat (100), and a clamping assembly (300). The mounting plate (400) is used to connect to the sand-filling machine body. The clamping seat (100) is rotatably connected to the mounting plate (400). The clamping seat (100) is connected to the clamping assembly (300). The clamping assembly (300) is used to clamp the fuse (1). A striking element is provided on one side of the tangential direction of the rotation axis of the clamping seat (100). An impact element (200) is provided on the opposite side of the clamping seat (100) where the striking element is provided. The impact element (200) is used to collide with the clamping seat (100).

2. The sand-vibrating clamping mechanism according to claim 1, characterized in that: The clamping assembly (300) includes a clamping plate (310) and a clamping member. The clamping plate (310) is provided with a plurality of clamping cavities (330) for placing the fuse (1) at intervals. The clamping member is used to drive the clamping plate (310) to clamp the fuse (1).

3. The sand-vibrating clamping mechanism according to claim 2, characterized in that: The clamping plate (310) is rotatably connected to the clamping seat (100). The abutting element is a spring (320). One end of the spring (320) is connected to the clamping seat (100), and the other end of the spring (320) is connected to the clamping plate (310). The spring (320) is used to drive the clamping plate (310) to rotate and cause the clamping plate (310) to clamp the fuse (1).

4. The sand-vibrating clamping mechanism according to claim 2, characterized in that: The clamping plate (310) is connected to a limiting plate (313) at the top. The limiting plate (313) and the clamping seat (100) are respectively located on opposite sides of the clamping cavity (330). The limiting plate (313) is used to contact the fuse (1).

5. The sand-vibrating clamping mechanism according to claim 1, characterized in that: The clamping seat (100) has a relief groove (140) which is connected to the clamping cavity (330). The buckle (4) is inserted into the clamping seat (100) through the relief groove (140). When the fuse (1) is located in the clamping cavity (330), the buckle (4) is located in the relief groove (140).

6. The sand-vibrating clamping mechanism according to claim 5, characterized in that: The bottom of the clamping seat (100) is provided with a sand-draining port (111). When the buckle (4) is placed in the relief groove (140), the housing (2) is spaced apart from the bottom of the clamping seat (100).

7. The sand-vibrating clamping mechanism according to claim 5, characterized in that: The relief groove (140) is open at one end, and the opening end of the relief groove (140) is provided with a first guide surface (144). The first guide surface (144) facilitates the buckle (4) to enter the relief groove (140).

8. The sand-vibrating clamping mechanism according to claim 4, characterized in that: The limiting plate (313) is provided with a second guide surface (314), which facilitates the entry of the fuse (1) into the clamping cavity (330).

9. A sand-vibrating clamping mechanism according to claim 2, characterized in that: The clamping plate (310) includes a connecting part (311) and a clamping part (312). The connecting part (311) is rotatably connected to the clamping seat (100), and the clamping part (312) is detachably connected to the connecting part (311). The clamping part (312) is used to contact the fuse (1).

10. A sand-vibrating clamping mechanism according to claim 1, characterized in that: The impact component (200) includes a support plate (210) and an impact block (220). The support plate (210) is connected to the mounting plate (400), and the impact block (220) is threadedly connected to the support plate (210).