A ceramic push rod with a quick-release structure

By combining the dovetail groove with the sliding connection of the locking block and the rolling friction of the ball bearing, the problem of loosening of the ceramic push rod during operation is solved, enabling quick installation and disassembly, improving the stability of the connection and the working efficiency of the equipment.

CN224429013UActive Publication Date: 2026-06-30KUNSHAN JINLONG ELECTRIC APPLIANCES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN JINLONG ELECTRIC APPLIANCES CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing ceramic actuators use a dovetail-shaped locking groove without any limiting function during operation, which leads to loosening.

Method used

The dovetail groove and the locking block are slidably connected, and the combination of ball bearing rolling friction and bolt fixing enables the locking block to be installed quickly and prevents loosening.

Benefits of technology

It enables rapid installation and disassembly of ceramic push rods, improves the stability and reliability of the connection, reduces wear, and enhances the working efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of ceramic push rod technology and discloses a ceramic push rod with a quick-release structure, including a ceramic push roller. A mounting plate is fixedly connected to the top of the ceramic push roller. A dovetail groove is formed on the top of the mounting plate, and a locking block is slidably connected inside the dovetail groove. Semicircular grooves are formed on both the front and rear sides of the locking block, and rotating balls are rotatably connected inside the two semicircular grooves. Two bolts penetrate the bottom of the mounting plate, and the outer walls of the two bolts are threaded to threaded holes. A locking mechanism is provided inside the mounting plate. In this utility model, the locking block is aligned with the dovetail groove on the top of the mounting plate, inserted, and slid. The rotating balls change the sliding friction into rolling friction, helping the locking block to quickly reach its position. Then, bolts are tightened from the bottom of the mounting plate through the threaded holes to fix the locking block to the mounting plate, preventing shaking and achieving quick installation of the ceramic push roller and preventing the locking block from loosening.
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Description

Technical Field

[0001] This utility model relates to the field of ceramic push rod technology, and in particular to a ceramic push rod with a quick-release structure. Background Technology

[0002] A ceramic linear actuator with a quick-release structure is a type of ceramic linear actuator used in specific equipment, which can be easily and quickly disassembled and installed. A ceramic linear actuator is a rod-shaped component made of ceramic material. Ceramic material has extremely high hardness, which allows the ceramic linear actuator to withstand greater pressure and friction. It is not easily worn during long-term use, ensuring its dimensional accuracy and performance stability. It has a specific shape and size and is used to transmit force, motion or achieve specific functions in various equipment or mechanisms.

[0003] To achieve quick-release functionality, the connection parts employ a relatively flexible connection method. While these methods facilitate disassembly, compared to traditional fastening methods, they are less secure under greater forces or vibrations, affecting the stability and reliability of the ceramic actuator. Existing technologies use trapezoidal or dovetail-shaped locking grooves to increase the friction and contact area of ​​the locking surfaces, allowing the ceramic actuator to be more firmly fixed in position after locking, reducing the possibility of loosening due to shaking. However, in actual use, even with dovetail-shaped locking grooves, the lack of limiting the locking mechanism during operation can still lead to loosening. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a ceramic push rod with a quick-release structure, which aims to improve the problem that the dovetail-shaped locking groove used in the prior art still loosens during operation because it is not limited by the dovetail-shaped locking groove.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a ceramic push rod with a quick-release structure, comprising a ceramic push roller, a mounting plate fixedly connected to the top of the ceramic push roller, a dovetail groove provided on the top of the mounting plate, a locking block slidably connected inside the dovetail groove, a semi-circular groove provided on both the front and rear sides of the locking block, a rotating ball rotatably connected inside the two semi-circular grooves, two bolts penetrating through the bottom of the mounting plate, the middle of the outer wall of each of the two bolts being threadedly connected to a threaded hole, and a locking mechanism provided inside the mounting plate.

[0006] As a further description of the above technical solution:

[0007] The locking mechanism includes two locking strips, the outer walls of which are slidably connected to the interior of the mounting plate. Two slots are provided on the front side of the mounting plate, and the outer walls of the two locking strips are slidably connected to the interior of the slots. Insertion slots are provided on the top front side of the two locking strips, and locking blocks are slidably connected to the interior of the two insertion slots. Multiple threaded holes are provided on the top front side of the two locking strips, and bolts penetrate the top of the two locking blocks. The bottoms of the multiple bolts are threadedly connected to the interior of the threaded holes.

[0008] As a further description of the above technical solution:

[0009] The ceramic push roller is fixedly connected to a reflective sticker, and the outer wall of the reflective sticker is designed to be non-slip.

[0010] As a further description of the above technical solution:

[0011] A rubber pad is fixedly connected to the bottom of the ceramic push roller, and the bottom of the rubber pad is designed with a chamfer.

[0012] As a further description of the above technical solution:

[0013] Both bolts are fixedly connected to washers on the lower part of their outer walls, and the outer walls of both washers are designed to be rounded.

[0014] As a further description of the above technical solution:

[0015] Both of the bolts have internal hexagonal grooves at their bottoms, and the outer walls of both internal hexagonal grooves are chamfered.

[0016] As a further description of the above technical solution:

[0017] Each of the two card blocks has a fixed block fixedly connected to its top, and each of the two fixed blocks has a pull ring fixedly connected to its top.

[0018] As a further description of the above technical solution:

[0019] The outer diameter of both card strips is smaller than the inner diameter of the card slot, and the outer diameter of both card blocks is smaller than the inner diameter of the insertion slot.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the first locking block is aligned with the dovetail groove on the top of the mounting plate, inserted and slid. The rotating ball turns the sliding friction into rolling friction, helping the first locking block to quickly reach the position. Then, the bolt is tightened from the bottom of the mounting plate through the threaded hole to fix the first locking block and the mounting plate, preventing shaking, realizing the rapid installation of the ceramic push roller and preventing the first locking block from loosening.

[0022] 2. In this utility model, the outer wall of the card strip fits into the interior of the mounting plate and can be slidably embedded into the front slot of the mounting plate. The slot restricts the horizontal displacement of the card strip and lays the foundation for connection. The insertion slot at the top of the card strip slides into the second card block. After the second card block is inserted, it is fixed by bolts and threaded holes. Tightening the bolts generates downward pressure to achieve vertical locking. The horizontal limit and vertical fastening work together. The cooperation of multiple components strengthens the connection, resists external forces, and ensures the stable operation of the ceramic push roller. Attached Figure Description

[0023] Figure 1 This is a perspective view of a ceramic push rod with a quick-release structure proposed in this utility model;

[0024] Figure 2 This is a front view of a ceramic push rod with a quick-release structure proposed in this utility model;

[0025] Figure 3 This is a right view of a ceramic push rod with a quick-release structure proposed in this utility model;

[0026] Figure 4 This is a split view of the locking block one of a ceramic push rod with a quick-release structure proposed in this utility model;

[0027] Figure 5 This is an exploded view of the mounting plate of a ceramic push rod with a quick-release structure proposed in this utility model.

[0028] Legend:

[0029] 1. Ceramic push roller; 2. Engaging mechanism; 201. Slot; 202. Clip strip; 203. Insertion slot; 204. Second clip block; 205. Second threaded hole; 206. Second bolt; 3. Mounting plate; 4. Dovetail groove; 5. First clip block; 6. Semicircular groove; 7. Turning ball; 8. First bolt; 9. First threaded hole; 10. Reflective sticker; 11. Rubber pad; 12. Gasket; 13. Socket hexagonal groove; 14. Fixing block; 15. Pull ring. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4An embodiment of this utility model provides a ceramic push rod with a quick-release structure, including a ceramic push roller 1. The top of the ceramic push roller 1 is fixedly connected to an installation plate 3. The top of the installation plate 3 is provided with a dovetail groove 4. A locking block 5 is slidably connected inside the dovetail groove 4. The locking block 5 can be inserted into the dovetail groove 4. Semicircular grooves 6 are provided on the front and rear sides of the locking block 5. Rotary balls 7 are rotatably connected inside the two semicircular grooves 6 to change sliding friction into rolling friction and reduce wear. Two bolts 8 pass through the bottom of the installation plate 3. The middle of the outer wall of the two bolts 8 is threaded to a threaded hole 9. The locking block 5 and the installation plate 3 are fixed by the bolts 8 passing through the threaded hole 9, which facilitates quick installation and disassembly of the ceramic push roller 1. The installation plate 3 is provided with a locking mechanism 2.

[0032] Specifically, the ceramic push roller 1, as the core component, has a mounting plate 3 fixedly connected to its top through precision machining. The mounting plate 3 is made of high-strength metal material to ensure that it does not deform when bearing the working load of the ceramic push roller 1. The top of the mounting plate 3 has a dovetail groove 4 with a trapezoidal cross-section, which ensures that the locking block 5 can be smoothly inserted and provides reliable constraint in the horizontal direction to prevent the locking block 5 from wobbling left and right. The shape of the locking block 5 is adapted to the dovetail groove 4 and can be tightly embedded in the dovetail groove 4. Semicircular grooves 6 are opened on the front and rear sides of the locking block 5. A rotating ball 7 is rotatably connected in each semicircular groove 6. The rotating ball 7 is made of high-hardness, low-friction ceramic material and its surface is treated with... Precision polishing ensures flexible rolling when in contact with the inner wall of the dovetail groove 4, transforming traditional sliding friction into rolling friction. This significantly reduces resistance during installation and disassembly, while also noticeably reducing wear between components and extending the structure's service life. Two bolts 8 penetrate the bottom of the mounting plate 3. The outer wall of bolt 8 is machined with threads matching threaded holes 9. Threaded holes 9 are located on the retaining block 5, their positions precisely corresponding to the bolt holes on the bottom of the mounting plate 3. Bolt 8 has an internal hexagonal groove 13 at its bottom, with a chamfered outer wall for easy and quick tightening with an internal hexagonal wrench. Washers are fixedly connected to the lower middle part of the outer wall of both bolts 8. The outer wall of the washer 12 is designed with rounded edges to effectively distribute the pressure generated when tightening bolt 8, preventing damage to the mounting plate 3 or the retaining block 5 due to excessive local pressure. It also prevents bolt 8 from being completely tightened, facilitating subsequent disassembly. Align retaining block 5 with the dovetail groove 4 at the top of the mounting plate 3, so that the ball bearing 7 on retaining block 5 contacts the inner wall of the dovetail groove 4. Due to the rolling action of the ball bearing 7, retaining block 5 can easily slide along the dovetail groove 4 until it reaches the predetermined position. Insert the two bolts 8 into the corresponding bolt holes from the bottom of the mounting plate 3, aligning them with the threaded holes 9 on retaining block 5. Use an Allen wrench to tighten the bolts 8, gradually screwing them into the threaded holes 9. As the bolts 8 are tightened... The gap between the locking block 5 and the mounting plate 3 gradually decreases, eventually achieving a tight fixation. During the tightening process, the gasket 12 plays a role in evenly distributing pressure, ensuring the stability of the connection and significantly improving work efficiency. When disassembling, simply use an Allen wrench to reverse the bolt 8 and pull it out of the threaded hole 9. Once the bolt 8 is completely removed, the fixing constraint between the locking block 5 and the mounting plate 3 is released. Since the locking block 5 and the dovetail groove 4 are in a sliding fit, and the presence of the ball bearing 7 greatly reduces the frictional resistance, the locking block 5 can be easily slid out of the dovetail groove 4 to complete the disassembly of the ceramic push roller 1. The disassembly process is also simple and quick, requiring no complicated tools and reducing equipment downtime.

[0033] Reference Figure 3 and Figure 5The locking mechanism 2 includes two locking strips 202. The outer walls of the two locking strips 202 are slidably connected to the inside of the mounting plate 3. The front side of the mounting plate 3 has two locking slots 201. The outer walls of the two locking strips 202 are slidably connected to the inside of the locking slots 201. The locking strips 202 can be inserted into the inside of the locking slots 201. The top front side of the two locking strips 202 has an insertion slot 203. The inside of the two insertion slots 203 is slidably connected to a second locking block 204. The second locking block 204 can be inserted into the inside of the insertion slots 203. The top front side of the two locking strips 202 has multiple threaded holes 205. The top of the two second locking blocks 204 is penetrated by bolts 206. The bottom of the multiple bolts 206 is threadedly connected to the inside of the threaded holes 205. The bolts 206 can be inserted into the inside of the threaded holes 205. The second locking block 204 is fixed by the bolts 206, which increases the stability of the mounting plate 3 and the first locking block 5.

[0034] Specifically, the locking strip 202 is made of high-strength metal alloy, and its outer wall dimensions are precisely matched with the sliding channel inside the mounting plate 3 to ensure flexible sliding without obvious gaps. The locking groove 201 is opened on the front side of the mounting plate 3, and its cross-sectional shape perfectly matches the outer wall contour of the locking strip 202. It adopts a rectangular design to provide multi-directional constraint capabilities. When the equipment needs to install the ceramic push roller 1, the operator first slides the locking strip 202 along the guide channel inside the mounting plate 3 to the predetermined position. The front end of the locking strip 202 is precisely embedded in the locking groove 201. The shape of the locking groove 201 restricts the horizontal displacement of the locking strip 202. The locking block 204 can be inserted into the insertion slot 203. To ensure smooth insertion and prevent loosening, the threaded holes 205 are evenly distributed on the top of the clip 202, and their thread specifications are strictly matched with the bolts 206. After the clip 202 is fully embedded in the slot 201, the clip 204 is inserted into the insertion slot 203. The bolts 206 on the clip 204 are fully aligned with the threaded holes 205 on the clip 202. The bolts 206 are tightened with tools. The tightening torque of the bolts 206 is converted into axial preload, which generates strong friction between the clips 204, the clip 202 and the mounting plate 3 to resist the vibration and impact generated during equipment operation, and ensure the stability and reliability of the ceramic push roller 1 during operation.

[0035] Reference Figure 1 and Figure 2 The ceramic push roller 1 is internally fixedly connected to a reflective sticker 10. The outer wall of the reflective sticker 10 is designed to be non-slip and is used to observe the position of the ceramic push roller 1. The bottom of the ceramic push roller 1 is fixedly connected to a rubber pad 11. The bottom of the rubber pad 11 is designed with a chamfer to increase friction. The lower middle part of the outer wall of the two bolts 8 is fixedly connected to a washer 12. The outer wall of the two washer 12 is designed with a smooth surface to prevent the bolts 8 from being tightened.

[0036] Specifically, the reflective pad 10 fixed inside the ceramic push roller 1 has an anti-slip treatment on its outer wall, which makes it easy for staff to quickly observe the position of the ceramic push roller 1 through the reflective effect, thus improving the efficiency of equipment operation monitoring. The rubber pad 11 connected at the bottom has a chamfered design to increase the friction with the contact surface, ensuring that the ceramic push roller 1 is stable and does not slip. The washer 12 in the lower middle part of the outer wall of bolt 8 has a smooth design, which can effectively prevent bolt 8 from being tightened due to excessive force when tightening bolt 8, making it easy to disassemble and maintain later, taking into account both practicality and ease of operation.

[0037] Reference Figure 3 , Figure 4 and Figure 5 Both bolts 18 have internal hexagonal grooves 13 at their bottoms, and the outer walls of both internal hexagonal grooves 13 are chamfered to facilitate the rotation of bolts 18. Both locking blocks 204 have fixing blocks 14 fixedly connected to their tops, and both fixing blocks 14 have pull rings 15 fixedly connected to their tops to facilitate the pulling of locking blocks 204. The outer diameter of both locking strips 202 is smaller than the inner diameter of the slot 201, and the outer diameter of both locking blocks 204 is smaller than the inner diameter of the insertion slot 203.

[0038] Specifically, the hexagonal slots 13 at the bottom of the two bolts 8, after being chamfered, allow the hexagonal wrench to be inserted and rotated more smoothly, effectively reducing the difficulty of operation and improving the efficiency of installation and disassembly. The fixing blocks 14 at the top of the two locking blocks 204 are connected to the pull rings 15, which makes it easy for the staff to quickly pull the locking blocks 204 to separate or connect with the locking strip 202. The design that the outer diameter of the locking strip 202 is smaller than the inner diameter of the slot 201 and the outer diameter of the locking block 204 is smaller than the inner diameter of the insertion slot 203 not only ensures the flexible sliding between the components, but also provides space for precise installation, ensuring that the components can fit together tightly and are easy to operate.

[0039] Working principle: Align the locking block 5 with the dovetail groove 4 on the top of the mounting plate 3. Due to the special shape of the dovetail groove 4 and the locking block 5, the locking block 5 can be smoothly inserted and slide along the dovetail groove 4. During this process, the rotating balls 7 in the semi-circular grooves 6 on the front and rear sides of the locking block 5 contact the inner wall of the dovetail groove 4, converting the original sliding friction into rolling friction, reducing resistance and wear, and facilitating the quick positioning of the locking block 5. After the locking block 5 slides to the appropriate position, align the two bolts 8 from the bottom of the mounting plate 3 with the threaded holes 9 on the locking block 5, and screw in the bolts 8. Through the tightening action of the threads, the locking block 5 is fixed together with the mounting plate 3, thereby realizing the quick installation of the ceramic push roller 1. When it is necessary to disassemble the ceramic push roller 1, use a tool to unscrew the bolts 8 at the bottom of the mounting plate 3 to release the fixed constraint on the locking block 5. Since the locking block 5 and the dovetail groove 4 are in a sliding fit relationship, after the bolts 8 are unscrewed, the locking block 5 can be easily slid out of the dovetail groove 4, thereby completing the disassembly operation of the ceramic push roller 1.

[0040] Furthermore, the outer wall of the clip 202 is adapted to the interior of the mounting plate 3, allowing for flexible sliding. When the clip 202 is embedded in the slot 201 on the front side of the mounting plate 3, the two fit tightly together. The shape and size of the slot 201 restrict the horizontal displacement of the clip 202, providing basic horizontal support for the overall connection and building a preliminary stable connection frame. The insertion slot 203 on the top front side of the clip 202 forms a sliding fit with the second clip 204. After the second clip 204 is inserted into the insertion slot 203, it is fixed by the threaded connection between the second bolt 206 and the second threaded hole 205. When the second bolt 206 is screwed in, it generates a downward tightening force, which makes the second clip 204, the clip 202, and the mounting plate 3 tightly locked in the vertical direction. The constraint of the slot 201 and the clip 202 in the horizontal direction, the cooperation of multiple components, enhance the connection stability from multiple dimensions, effectively resist external interference, and ensure the stability of the ceramic push roller 1 during operation.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A porcelain pusher rod with quick release structure, comprising a porcelain push roller (1), characterized in that: The top of the ceramic push roller (1) is fixedly connected to an installation plate (3). The top of the installation plate (3) is provided with a dovetail groove (4). A locking block (5) is slidably connected inside the dovetail groove (4). Semicircular grooves (6) are provided on the front and rear sides of the locking block (5). A ball bearing (7) is rotatably connected inside the two semicircular grooves (6). Two bolts (8) pass through the bottom of the installation plate (3). The middle of the outer wall of the two bolts (8) is threadedly connected to a threaded hole (9). A locking mechanism (2) is provided inside the installation plate (3).

2. The ceramic push rod with quick release structure according to claim 1, characterized in that: The locking mechanism (2) includes two locking strips (202). The outer walls of the two locking strips (202) are slidably connected to the inside of the mounting plate (3). The front side of the mounting plate (3) has two locking slots (201). The outer walls of the two locking strips (202) are slidably connected to the inside of the locking slots (201). The top front side of the two locking strips (202) has an insertion slot (203). The inside of the two insertion slots (203) is slidably connected to a second locking block (204). The top front side of the two locking strips (202) has multiple threaded holes (205). The top of the two second locking blocks (204) is penetrated by a second bolt (206). The bottom of the multiple second bolts (206) is threadedly connected to the inside of the threaded holes (205).

3. The ceramic push rod with quick release structure according to claim 1, characterized in that: The ceramic push roller (1) is internally fixedly connected to a reflective sticker (10), and the outer wall of the reflective sticker (10) is designed to be non-slip.

4. The ceramic push rod with quick release structure according to claim 1, characterized in that: A rubber pad (11) is fixedly connected to the bottom of the ceramic push roller (1), and the bottom of the rubber pad (11) is designed with a chamfer.

5. A ceramic push rod with a quick-release structure according to claim 1, characterized in that: Both of the bolts (8) are fixedly connected to the lower part of the outer wall of the two bolts (8), and the outer walls of the two bolts (8) are both designed to be rounded.

6. A ceramic push rod with a quick-release structure according to claim 1, characterized in that: Both of the two bolts (8) have internal hexagonal grooves (13) at their bottoms, and the outer walls of both internal hexagonal grooves (13) are chamfered.

7. A ceramic push rod with a quick-release structure according to claim 2, characterized in that: The top of each of the two card blocks (204) is fixedly connected to a fixing block (14), and the top of each of the two fixing blocks (14) is fixedly connected to a pull ring (15).

8. A ceramic push rod with a quick-release structure according to claim 2, characterized in that: The outer diameter of both card strips (202) is smaller than the inner diameter of the card slot (201), and the outer diameter of both card blocks (204) is smaller than the inner diameter of the insertion slot (203).