Hydraulic rotary clamp

Abstract

The utility model discloses a hydraulic rotary clamp, including glass clamp block, connecting seat and glass cover, one side of glass clamp block is connected with the pivot, one side of pivot is equipped with the drive block, connecting seat sets up one side of glass clamp block, and the side of connecting seat is equipped with the mounting hole for installing pivot, the utility model discloses through " hydraulic buffer + spring " combination design, has realized two -way buffering effect: when glass clamp block opens, the damping force of hydraulic buffer can slow down the impact speed of drive block and top plug, when closing, hydraulic buffer further restrains the reset speed of spring, through the thread hole A of positioning block can adapt to different specifications bolt, and the device is convenient to be fixed on equipment support, cabinet, workbench and a variety of external structures, and the installation flexibility is high, only needs the operator to exert a small amount of external force (when opening) or cancels the external force (when closing) in whole opening and closing process, does not need complicated manual adjustment or electric control, reduces the operation threshold.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic rotary clamp technology, specifically a hydraulic rotary clamp. Background Technology

[0002] Hydraulic rotary clamps can be used for opening and closing glass doors of jewelry and cosmetic display cases. The buffered closing design prevents glass breakage caused by excessive force when customers open and close the door, while the quiet opening and closing experience also enhances the high-end feel of the display case. In the furniture and home furnishing industry, they can be used as hinge clamps for bathroom glass partition doors and wardrobe glass sliding doors. The combination of aluminum alloy or engineering plastic materials with a high-strength clamping structure can meet the needs of lightweight home use while ensuring safety for long-term use.

[0003] In existing technologies, most rotary clamps used for glass clamping (such as traditional mechanical hinge glass clamps and ordinary spring glass clamps) on the market employ a single spring drive or a design without buffering in their core opening and closing and buffering structures. However, when opening the glass clamp, if the operator applies excessive external force, the spring will be compressed rapidly. At this time, due to the lack of damping constraint from the hydraulic buffer, the drive component and the transmission component will collide violently, causing the glass clamp block to rotate rapidly. This can easily lead to the glass edge colliding with the clamp block or external structure, resulting in damage to the glass corners. When closing the glass clamp, the speed at which the spring releases potential energy is uncontrolled, which will push the clamp block to "spring back" rapidly. If the glass is not fully aligned with the clamping position, or if the clamp block closes too quickly, it will cause the clamp block to generate an instantaneous impact force on the glass. Especially for brittle materials such as tempered glass and optical glass, this "forceful clamping" closing action can directly cause cracks on the glass surface or complete breakage.

[0004] In light of this, we have developed a hydraulic rotary clamp. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic rotary clamp to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic rotary clamp, comprising: a glass clamping block, a connecting seat, and a glass cover plate;

[0007] A rotating shaft is connected to one side of the glass clamping block, and a driving block is provided on one side of the rotating shaft;

[0008] The connecting seat is located on one side of the glass clamping block, and the side of the connecting seat is provided with a mounting hole for installing the rotating shaft;

[0009] The glass cover is set on top of the glass clamping block. The connecting seat is equipped with a buffer mechanism. Through the cooperation of the hydraulic damper, spring and top plug of the buffer mechanism, the glass clamping block can be rotated to realize rotational opening and closing, and buffered closing.

[0010] Preferably, the buffer mechanism includes a top plate A connected to the side of the hydraulic buffer, and the top plate A is connected to one side of the connecting seat. A spring is sleeved on the surface of the hydraulic buffer, a top plug is connected to the other side of the inside of the connecting seat, and the top plate B is connected after the top plug passes through the connecting seat. The driving block is located on the side of the top plug.

[0011] Preferably, the side of the connecting seat is provided with a through hole for the top plug to pass through; the axis of the through hole is completely coincident with the axis of the hydraulic buffer to ensure that the top plug always moves in the axial direction and avoids jamming.

[0012] Preferably, a positioning block is connected to the surface of the connecting seat, and the surface of the positioning block is provided with a threaded hole A for fixing; the positioning block and the connecting seat are made by an integral molding process, which can enhance the connection strength between the two and prevent the positioning block from falling off under force.

[0013] Preferably, screw holes A are provided on both sides of the surface of the top plate A and the top plate B, and screw holes B are provided on the side of the connecting seat for aligning with screw holes A; screw holes A and screw holes B have the same specifications and are both internal thread structures.

[0014] Preferably, the surface of the glass clamping block is provided with threaded posts, and the top of the threaded posts contacts the bottom of the glass cover plate; the threaded posts and the glass clamping block are connected by threads, and the height of the threaded posts can be adjusted by rotation, thereby fine-tuning the clamping gap between the glass clamping block and the glass cover plate to adapt to glass of different thicknesses.

[0015] Preferably, the surface of the threaded post has a threaded hole B, and the surface of the glass cover plate has a threaded hole C for aligning with the threaded hole B; both the threaded hole B and the threaded hole C are through-holes with the same thread specification, and the glass cover plate and the threaded post can be fixed by passing a bolt through the threaded hole C and screwing it into the threaded hole B.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) Through the combination design of "hydraulic buffer + spring", a two-way buffering effect is achieved: when the glass clamp is open, the damping force of the hydraulic buffer can slow down the impact speed of the drive block and the top plug, and avoid the glass collision caused by the rapid rotation of the glass clamp; when closed, the hydraulic buffer further suppresses the return speed of the spring, and prevents the clamp from squeezing the glass and causing damage. This design can effectively reduce the glass breakage rate, and is especially suitable for clamping fragile tempered glass, optical glass and other precision objects.

[0018] (2) The threaded hole A of the positioning block can be used to fit bolts of different specifications, making it easy to fix the device on various external structures such as equipment brackets, cabinets, and workbenches, with high installation flexibility;

[0019] (3) The entire opening and closing process only requires the operator to apply a small amount of external force (when opening) or remove the external force (when closing). The spring and hydraulic damper of the buffer mechanism can assist in completing most of the transmission actions without complicated manual adjustment or electric control, thus reducing the operating threshold. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention during an overall explosion;

[0021] Figure 2 This utility model Figure 1 A structural diagram from a first-person perspective during the explosion;

[0022] Figure 3 This utility model Figure 1 A structural diagram from a second-person perspective during the explosion;

[0023] Figure 4 This is a schematic diagram of the structure of the connecting seat and the glass clamping block in three dimensions according to this utility model;

[0024] Figure 5 This utility model Figure 4 A structural diagram from a first-person perspective.

[0025] In the diagram: 1. Glass clamping block; 2. Threaded post; 3. Threaded hole B; 4. Glass cover plate; 5. Threaded hole C; 6. Top plate B; 7. Threaded hole A; 8. Connecting seat; 9. Through hole; 10. Positioning block; 11. Threaded hole A; 12. Threaded hole B; 13. Top plate A; 14. Hydraulic buffer; 15. Spring; 16. Rotating shaft; 17. Drive block; 18. Top plug; 19. Mounting hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] Please see Figure 1-5 The present invention provides a technical solution: a hydraulic rotary clamp, including a glass clamping block 1, a rotating shaft 16 connected to one side of the glass clamping block 1, and a driving block 17 provided on one side of the rotating shaft 16;

[0029] Connecting seat 8 is provided on one side of glass clamping block 1, and the side of connecting seat 8 is provided with mounting hole 19 for mounting shaft 16.

[0030] The glass cover plate 4 is set on top of the glass clamping block 1. The connecting seat 8 is equipped with a buffer mechanism. Through the cooperation of the hydraulic buffer 14, spring 15 and top plug 18 of the buffer mechanism, the rotating glass clamping block 1 can be rotated to open and close, and buffered to close.

[0031] The buffer mechanism includes a top plate A13 connected to the side of the hydraulic buffer 14, and the top plate A13 is connected to one side of the connecting seat 8. A spring 15 is sleeved on the surface of the hydraulic buffer 14. A top plug 18 is connected to the other side of the interior of the connecting seat 8. The top plug 18 passes through the connecting seat 8 and is connected to the top plate B6. The drive block 17 is located on the side of the top plug 18.

[0032] The side of the connecting seat 8 is provided with a through hole 9 for passing through the top plug 18. The diameter of the through hole 9 is slightly larger than the outer diameter of the top plug 18, so that the top plug 18 can pass through and achieve axial sliding.

[0033] The surface of the connecting seat 8 is connected to a positioning block 10. The positioning block 10 extends outward perpendicular to the surface of the connecting seat 8. Each positioning block 10 has a threaded hole A11 for fixed connection with an external device. The axis of the threaded hole A11 is perpendicular to the surface of the positioning block 10.

[0034] The top plate A13 and the top plate B6 have screw holes A7 on both sides of their surfaces, and the connecting seat 8 has screw holes B12 on its side for aligning with the screw holes A7.

[0035] The surface of the glass clamp 1 is provided with threaded post 2, and the top of the threaded post 2 contacts the bottom of the glass cover plate 4, which is used to support the glass cover plate 4 and adjust the clamping gap between the two.

[0036] The surface of the threaded post 2 is provided with a threaded hole B3, and the surface of the glass cover plate 4 is provided with a threaded hole C5 for aligning with the threaded hole B3. The threaded hole B3 and the threaded hole C5 are of the same specification. The glass cover plate 4 and the glass clamp 1 can be fixedly connected by passing a bolt through the threaded hole C5 and screwing it into the threaded hole B3.

[0037] Specifically, in use, the glass clamp 1 serves as the core clamping component. The glass cover plate 4 on its top is initially positioned by the threaded post 2. The threaded post 2 is fixed to the surface of the glass clamp 1, with its top in close contact with the bottom of the glass cover plate 4. The threaded hole C5 of the glass cover plate 4 is precisely aligned with the threaded hole B3 of the threaded post 2. It can be fixed by passing a bolt through the two holes, ensuring that the glass cover plate 4 and the glass clamp 1 form a stable clamping cavity, thus preparing the structure for subsequent glass clamping. The connecting seat 8 serves as the core of support and transmission. The rotating shaft 16 on one side of the glass clamp 1 is installed in the mounting hole 19 on its side. The rotating shaft 16 can rotate flexibly in the mounting hole 19, providing motion trajectory constraints for the rotation of the glass clamp 1. The buffer mechanism inside the connecting seat 8 is in a pre-compressed standby state: the side of the hydraulic buffer 14 is fixed to one side of the connecting seat 8 by the top plate A13. The screw hole A7 on the surface of the top plate A13 is aligned with the screw hole B12 of the connecting seat 8 and locked by bolts, ensuring the stable position of the hydraulic buffer 14.

[0038] Spring 15 is tightly fitted onto the surface of hydraulic buffer 14, maintaining a slight preload in the initial state; top plug 18 passes through the through hole 9 on the side of connecting seat 8, with one end located inside the connecting seat 8 and the other end extending to the outside and connecting to top plate B6. Top plate B6 is also bolted to connecting seat 8 via screw hole A7 and screw hole B12, limiting the axial displacement range of top plug 18; at the same time, drive block 17 on one side of rotating shaft 16 is close to the side of top plug 18, forming a transmission link of "drive block 17 - top plug 18 - buffer mechanism", preparing for subsequent power transmission; in addition, positioning block 10 on the surface of connecting seat 8 is fixed to external mounting structure (such as equipment bracket, cabinet frame, etc.) via threaded hole A11, ensuring that the overall position of the entire hydraulic rotary clamp does not shift during operation;

[0039] When it is necessary to open the glass clamp 1 to pick up or put down the glass, the operator applies a rotational force to the glass clamp 1 (clockwise or counterclockwise, depending on the actual installation direction). The glass clamp 1 rotates around the mounting hole 19 of the connecting seat 8 with the rotating shaft 16 as the rotation center. At this time, the drive block 17, which rotates synchronously with the rotating shaft 16, will be angularly offset. Its side will generate an axial thrust on the top plug 18. The inclined or flat structure of the drive block 17 will squeeze the top plug 18, causing the top plug 18 to move into the connecting seat 8 along the through hole 9 of the connecting seat 8.

[0040] The inward movement of the top plug 18 directly acts on the buffer mechanism: on the one hand, the top plug 18 squeezes the spring 15 sleeved on the surface of the hydraulic buffer 14, causing the spring 15 to be compressed and store elastic potential energy, providing power for subsequent reset; on the other hand, the end of the top plug 18 contacts the piston rod of the hydraulic buffer 14, pushing the piston rod to move into the hydraulic buffer 14. The hydraulic oil inside the hydraulic buffer 14 flows slowly through the damping hole, generating a stable damping force, preventing the top plug 18 from being violently impacted by the rapid rotation of the drive block 17, ensuring that the opening process of the glass clamp 1 is slow and stable, preventing glass collision damage due to excessively fast operation. During this process, the clamping cavity formed by the glass clamp 1 and the glass cover plate 4 gradually opens until it reaches a suitable angle for picking up and placing the glass. The operator can stop applying external force. At this time, the compression of the spring 15 and the piston rod stroke of the hydraulic buffer 14 reach a stable state, and the glass clamp 1 remains in the open position.

[0041] When it is necessary to close the glass clamp 1 to hold the glass, the operator removes the external force on the glass clamp 1. At this time, the buffer mechanism begins to release energy and reverse the transmission: the spring 15 recovers its deformation due to the loss of the compression of the top plug 18, and generates an outward elastic force to push the top plug 18 to move along the through hole 9 to the outside of the connecting seat 8; the movement of the top plug 18 drives the drive block 17 on its side to rotate in the opposite direction. The drive block 17 is synchronously linked with the rotating shaft 16, so that the glass clamp 1 rotates in the closing direction with the rotating shaft 16 as the center. At the same time, the hydraulic oil inside the hydraulic buffer 14 flows in the opposite direction under the action of the return spring (integrated with the hydraulic buffer), pushing the piston rod to extend outward, assisting the top plug 18 to move smoothly, and avoiding the excessive elastic force of the spring 15 from causing the glass clamp 1 to close quickly. The damping force of the hydraulic buffer plays a "deceleration" role in this stage, so that the closing speed of the glass clamp 1 is slow and uniform until the glass clamp 1 and the glass cover plate 4 clamp the glass together. At this time, the top plug 18 returns to the initial position, the spring 15 returns to the slightly pre-tight state, and the entire closing process is completed.

[0042] After the glass clamp 1 closes, the device enters a stable clamping state. At this time, the glass clamp 1 and the glass cover plate 4 are supported by the threaded post 2 and fixed by bolts (threaded hole B3 and threaded hole C5 cooperate), forming a rigid clamping of the glass to prevent the glass from shifting under vibration or slight external force. The positioning block 10 of the connecting seat 8 is firmly connected to the external structure through the threaded hole A11 to ensure that the entire device does not shake and further improves the clamping stability. The spring 15 of the buffer mechanism maintains a slight preload and continuously applies a closing force to the glass clamp 1 through the top plug 18 and the drive block 17 to compensate for the gap caused by thermal expansion and contraction or slight deformation of the glass, and always maintain a stable clamping force to prevent the glass from loosening.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic rotary clamp, characterized in that, include: A glass clamp (1) is connected to a rotating shaft (16) on one side, and a drive block (17) is provided on one side of the rotating shaft (16). Connecting seat (8) is located on one side of glass clamp (1), and the side of the connecting seat (8) is provided with mounting holes (19) for mounting the rotating shaft (16). The glass cover plate (4) is set on the top of the glass clamp (1). The connecting seat (8) is equipped with a buffer mechanism. The glass clamp (1) is rotated by the cooperation of the hydraulic buffer (14), spring (15) and top plug (18) of the buffer mechanism to achieve rotation opening and closing, and buffer closing.

2. The hydraulic rotary clamp according to claim 1, characterized in that, The buffer mechanism includes a top plate A (13) connected to the side of the hydraulic buffer (14), and the top plate A (13) is connected to one side of the connecting seat (8). A spring (15) is sleeved on the surface of the hydraulic buffer (14). A top plug (18) is connected to the other side of the inside of the connecting seat (8). The top plug (18) passes through the connecting seat (8) and is connected to the top plate B (6). The drive block (17) is located on the side of the top plug (18).

3. A hydraulic rotary clamp according to claim 2, characterized in that, The side of the connecting seat (8) is provided with a through hole (9) for penetrating the top plug (18).

4. A hydraulic rotary clamp according to claim 1, characterized in that, The surface of the connecting seat (8) is connected to a positioning block (10), and the surface of the positioning block (10) is provided with a threaded hole A (11) for fixing.

5. A hydraulic rotary clamp according to claim 2, characterized in that, The top plate A (13) and the top plate B (6) have screw holes A (7) on both sides of their surfaces, and the connecting seat (8) has screw holes B (12) on its side for aligning with screw holes A (7).

6. A hydraulic rotary clamp according to claim 1, characterized in that, The surface of the glass clamp (1) is provided with threaded post (2), and the top of the threaded post (2) is in contact with the bottom of the glass cover plate (4).

7. A hydraulic rotary clamp according to claim 6, characterized in that, The surface of the threaded post (2) is provided with a threaded hole B (3), and the surface of the glass cover plate (4) is provided with a threaded hole C (5) for aligning the threaded hole B (3).

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