Hydraulic rod with bidirectional telescopic function

Abstract

The utility model provides a hydraulic rod with a bidirectional telescopic function, which belongs to the technical field of hydraulic rods and comprises a frame. The rotating rod is rotationally connected to the frame, a gear is fixedly connected to the rotating rod, and a handle is fixedly connected to the upper end of the rotating rod; the toothed plate is connected into the frame in a sliding mode, and the toothed plate is meshed with the gear; the connecting plate is fixedly connected to one side end of the toothed plate, and the side end of the connecting plate is fixedly connected with a hydraulic rod; the limiting mechanism comprises a top plate, a ratchet wheel, ratchets and a torque spring, the top plate is connected to the upper end of the frame, the ratchet wheel is fixedly connected to the circumferential surface of the rotating rod, and the ratchets are rotationally connected to the upper end of the top plate through a rotating shaft. By means of the design, the stability and accuracy of the hydraulic rod in the stretching and retracting process are guaranteed, and damage or danger possibly caused by the fact that the hydraulic rod exceeds the preset stretching and retracting range is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic rods, and in particular relates to a hydraulic rod with bidirectional telescopic function. Background Art

[0002] With the development of the times and technology, and the improvement of science and technology, hydraulic supports are structures used to control the mine pressure of coal mining working faces. The mine pressure of the mining face acts on the hydraulic supports in the form of external loads. In the mechanical system of the interaction between the hydraulic supports and the surrounding rocks of the mining face, if the combined force of the supporting parts of the hydraulic supports and the combined force of the external loads acting on the hydraulic supports by the top plate are exactly in the same straight line, then the hydraulic supports are very adaptable to the surrounding rocks of the mining face; in the current market, most general hydraulic rods are unidirectionally telescopic, and unidirectionally telescopic hydraulic rods have the disadvantage of short elongation length, and the support of the hydraulic rod is also movable, which is not conducive to support.

[0003] The authorization publication number "CN212359809U" records a hydraulic rod with a bidirectional telescopic function, comprising a first support rod, a first telescopic rod fixedly installed on the right side of the first support rod, a telescopic box fixedly installed on the right side of the first telescopic rod, a fixed block fixedly installed on the top of the telescopic box, a fixed rod movably installed inside the fixed block, a bearing box fixedly installed inside the telescopic box, a first rotating shaft movably installed inside the bearing box, and the hydraulic rod with a bidirectional telescopic function, when the hydraulic rod needs to be extended, the hand wheel is rotated clockwise, the hand wheel will drive the first rotating shaft to rotate through the bearing box, the first rotating shaft will drive the gear to rotate when rotating, the gear will drive the first telescopic rod to move to the left, and drive the second telescopic rod to move to the right, and then the fixed rod and the fixed block are used in coordination with each other, so as to achieve the bidirectional telescopic function of the hydraulic rod.

[0004] The hydraulic rod with bidirectional telescopic function of the above patent, when the hydraulic rod needs to be extended, the hand wheel is turned clockwise, the hand wheel will drive the first rotating shaft to rotate through the bearing box, the first rotating shaft will drive the gear to rotate when rotating, the gear will drive the first telescopic rod to move to the left side and drive the second telescopic rod to move to the right side when rotating, and then through the mutual cooperation of the fixed rod and the fixed block, the hydraulic rod can have a bidirectional telescopic function.

[0005] In traditional hydraulic systems, the stability of the hydraulic rod may be affected, especially when it is extended and retracted for a long time or subjected to large forces. In hydraulic systems, accurate transmission of force is very important. Utility Model Content

[0006] The purpose of the utility model is to provide a hydraulic rod with bidirectional telescopic function, aiming to solve the problem that the stability of the hydraulic rod in the hydraulic system of the prior art may be affected, especially when it is telescoped for a long time or subjected to large forces, and in the hydraulic system, the accurate transmission of force is very important.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A hydraulic rod with bidirectional telescopic function, comprising:

[0009] frame;

[0010] A rotating rod, the rotating rod is rotatably connected to the frame, a gear is fixedly connected to the rotating rod, and a handle is fixedly connected to the upper end of the rotating rod;

[0011] A tooth plate, the tooth plate is slidably connected in the frame, and the tooth plate is meshed with the gear;

[0012] A connecting plate, the connecting plate being fixedly connected to one side end of the tooth plate, the side end of the connecting plate being fixedly connected to a hydraulic rod; and

[0013] The limiting mechanism includes a top plate, a ratchet, ratchet teeth and a torque spring, wherein the top plate is connected to the upper end of the frame, the ratchet is fixedly connected to the circumferential surface of the rotating rod, the ratchet teeth are rotatably connected to the upper end of the top plate via a rotating shaft, the torque spring is connected between the ratchet teeth and the ratchet wheel, and the ratchet teeth and the ratchet wheel are intermittently meshed.

[0014] As a preferred solution of the utility model, the side ends of the frame are connected with side plates, and bolts are threadedly connected between the frame and the side plates.

[0015] As a preferred solution of the utility model, a convex plate is fixedly connected to the side end of the frame, a sliding groove is provided at the side end of the tooth plate, and the convex plate and the sliding groove match each other.

[0016] As a preferred solution of the utility model, the other side end of the tooth plate is fixedly connected to a limiting plate, and the limiting plate matches the side plate.

[0017] As a preferred solution of the utility model, a fixing plate is fixedly connected to the side end of the hydraulic rod, and a connecting flange is fixedly connected to the output end of the hydraulic rod.

[0018] As a preferred solution of the utility model, the lower end of the frame is fixedly connected with a bottom plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. In this solution, the stability of the entire hydraulic rod system is effectively improved through the fixed connection between the fixed plate and the bottom plate, and the matching design of the limit plate and the side plate. Such a design not only ensures the stability and accuracy of the hydraulic rod during the extension and retraction process, but also prevents damage or danger that may be caused by exceeding the predetermined extension and retraction range. In addition, the coordinated use of the lug plate and the tooth plate provides a solid fulcrum and guide for the sliding of the hydraulic rod, further enhancing the stability of the system.

[0021] 2. In this solution, the limit plate design in this solution provides a safe range of motion for the extension and retraction of the hydraulic rod. In this way, the operator can operate under the premise of safety, avoiding accidents that may be caused by operating errors. At the same time, the structural design of this solution takes into account the needs of maintenance and overhaul. For example, the design of the bottom plate facilitates the maintenance and overhaul of the hydraulic rod system. Such a design makes the operation and maintenance of the entire system more convenient and reduces the difficulty and cost of operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a three-dimensional diagram of the utility model;

[0024] Figure 2 It is an exploded view of the utility model;

[0025] Figure 3 For this utility model Figure 2 Enlarged view of the middle gear;

[0026] Figure 4 For this utility model Figure 2 Exploded view of the center frame.

[0027] In the figure: 1. frame; 2. bump plate; 3. side plate; 4. bolt; 5. bottom plate; 6. top plate; 7. tooth plate; 8. slide groove; 9. limit plate; 10. connecting plate; 11. hydraulic rod; 12. fixing plate; 13. connecting flange; 14. rotating rod; 15. gear; 16. handle; 17. ratchet; 18. ratchet; 19. torque spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] See also Figure 1-4 , the utility model provides the following technical solutions:

[0031] A hydraulic rod with bidirectional telescopic function, comprising:

[0032] Frame 1;

[0033] A rotating rod 14, the rotating rod 14 is rotatably connected to the frame 1, a gear 15 is fixedly connected to the rotating rod 14, and a handle 16 is fixedly connected to the upper end of the rotating rod 14;

[0034] The tooth plate 7 is slidably connected to the frame 1, and the tooth plate 7 is meshed with the gear 15;

[0035] A connecting plate 10, the connecting plate 10 is fixedly connected to one side end of the tooth plate 7, and a hydraulic rod 11 is fixedly connected to the side end of the connecting plate 10; and

[0036] The limiting mechanism includes a top plate 6, a ratchet 17, a ratchet 18 and a torque spring 19. The top plate 6 is connected to the upper end of the frame 1. The ratchet 17 is fixedly connected to the circumferential surface of the rotating rod 14. The ratchet 18 is rotatably connected to the upper end of the top plate 6 through a rotating shaft. The torque spring 19 is connected between the ratchet 18 and the ratchet 17. The ratchet 18 and the ratchet 17 are intermittently meshed.

[0037] In the specific embodiment of the utility model, the frame 1 is the basic part of the hydraulic rod 11, which bears the structural strength and stability of the entire hydraulic rod 11. It provides support and fixation for the installation and operation of other parts. The rotating rod 14 is rotatably connected to the frame 1, and a gear 15 is fixedly connected to it. The upper end of the rotating rod 14 is fixedly connected to a handle 16, so that the operator can rotate the rotating rod 14, thereby driving the gear 15 to rotate. The gear 15 is fixedly connected to the rotating rod 14 and meshes with the tooth plate 7. Under the rotation drive of the rotating rod 14, the gear 15 drives the tooth plate 7 to move, thereby realizing the extension and retraction of the hydraulic rod 11. The tooth plate 7 is slidably connected to the frame 1 and meshes with the gear 15. Driven by the gear 15, the tooth plate 7 slides along the frame 1, thereby pushing the movement of the connecting plate 10 and the hydraulic rod 11. The connecting plate 10 is fixedly connected to one side end of the tooth plate 7, and the side end thereof is fixedly connected to the hydraulic rod 11. The connecting plate 10 plays the role of transmitting force, transmitting the sliding force of the tooth plate 7 to the hydraulic rod 11, so that it can be extended and retracted. The hydraulic rod 11 is fixedly connected to the side end of the connecting plate 10. When the hydraulic rod 11 is subjected to force transmission, it is extended and retracted, thereby realizing the lifting or adjustment function of the equipment. The limit mechanism plays a role in limiting the extension range of the hydraulic rod 11, preventing the hydraulic rod 11 from over-extension, and ensuring the safe operation of the equipment.

[0038] For details, please refer to Figure 1 and Figure 4 The side end of the frame 1 is connected with a side plate 3, and bolts 4 are threadedly connected between the frame 1 and the side plate 3.

[0039] In this embodiment: the side end of the frame 1 is connected to a side plate 3, and the two parts are fixed by a threaded bolt 4. This design enhances the structural stability of the frame 1, so that the entire hydraulic rod 11 can maintain good rigidity and strength during the extension and retraction process. The bolt 4 is tightened by rotating into the threaded holes on the frame 1 and the side plate 3. This connection method allows the side plate 3 to fit tightly with the frame 1, while facilitating maintenance and disassembly. If the side plate 3 needs to be adjusted or replaced, the operator can easily loosen the bolt 4 and then remove or replace the side plate 3. In addition, the presence of the side plate 3 provides a certain degree of protection for the hydraulic rod 11, which can prevent damage to the hydraulic rod by external objects, and also provides a smooth path for the extension and retraction of the hydraulic rod 11. The threaded connection between the side plate 3 and the frame 1 also means that the two parts can be adjusted relatively easily to adapt to different working environments and requirements.

[0040] For details, please refer to Figure 1-Figure 3 The side end of the frame 1 is fixedly connected with a protrusion plate 2, and the side end of the tooth plate 7 is provided with a slide groove 8, and the protrusion plate 2 and the slide groove 8 match.

[0041] In this embodiment: the side end of the frame 1 is fixedly connected with a lug plate 2, and the side end of the tooth plate 7 is provided with a slide groove 8. The lug plate 2 and the slide groove 8 are matched, which means that the shape and size of the lug plate 2 are designed to fit exactly into the slide groove 8 on the tooth plate 7. This design enables the tooth plate 7 to slide in the slide groove 8, and the lug plate 2 provides a stable support and guide. When the hydraulic rod 11 is extended and retracted, the sliding of the tooth plate 7 inside the frame 1 is supported by the lug plate 2, thereby ensuring that the movement trajectory of the tooth plate 7 is a straight line, avoiding unnecessary shaking or deviation. In addition, the fixed connection of the lug plate 2 to the side end of the frame 1 enhances the stability of the entire structure. It provides a solid fulcrum for the sliding of the tooth plate 7, and also provides a clear limit for the extension and retraction of the hydraulic rod 11, preventing damage caused by excessive extension and retraction.

[0042] For details, please refer to Figure 1-Figure 3 The other side end of the tooth plate 7 is fixedly connected to a limit plate 9, and the limit plate 9 matches the side plate 3.

[0043] In this embodiment: the other side end of the tooth plate 7 is fixedly connected to the limit plate 9, and the limit plate 9 matches the side plate 3. This design further enhances the structural stability and safety of the hydraulic rod 11. The function of the limit plate 9 is to provide a limit position block for the tooth plate 7 when the hydraulic rod 11 is extended or retracted, so as to prevent the tooth plate 7 from exceeding the predetermined extension range. In this way, when the hydraulic rod 11 reaches the maximum extension or contraction position, the matching design of the limit plate 9 and the side plate 3 can ensure that the tooth plate 7 stops at the correct position to avoid damage or danger that may be caused by exceeding the range. The limit plate 9 matches the side plate 3, which means that their shapes and sizes are designed to fit precisely, ensuring that the limit plate 9 can effectively limit the movement of the tooth plate 7. This matching relationship can also ensure that during the extension and retraction process of the hydraulic rod 11, the limit plate 9 will not be displaced or damaged due to excessive force, thereby maintaining the reliability and durability of the entire structure.

[0044] For details, please refer to Figure 1 and Figure 2 A fixing plate 12 is fixedly connected to the side end of the hydraulic rod 11 , and a connecting flange 13 is fixedly connected to the output end of the hydraulic rod 11 .

[0045] In this embodiment: the side end of the hydraulic rod 11 is fixedly connected with a fixing plate 12, and the output end of the hydraulic rod 11 is fixedly connected with a connecting flange 13. These design elements further enhance the functionality and applicability of the hydraulic rod 11. The fixing plate 12 is installed at the side end of the hydraulic rod 11. Its function is to provide additional support and fixation to ensure that the hydraulic rod 11 maintains linear motion during the extension and contraction process and prevent the hydraulic rod 11 from bending or deflecting due to external forces. The fixing plate 12 can match the structure of the hydraulic rod 11 and be fastened together by bolts or other fixing devices to provide stable fixation. The connecting flange 13 is located at the output end of the hydraulic rod 11. It is usually a planar structure with a screw hole or other adapter interface for connecting the hydraulic rod 11 to an external device or structure. This design in this embodiment allows the hydraulic rod 11 to be tightly connected to an external device or structure while extending and contracting, ensuring the stability and reliability of force transmission. The presence of the fixing plate 12 and the connecting flange 13 not only enhances the structural strength of the hydraulic rod 11, but also improves its compatibility with other equipment and the stability of the connection.

[0046] For details, please refer to Figure 2 The lower end of the frame 1 is fixedly connected with a bottom plate 5.

[0047] In this embodiment, the lower end of the frame 1 is fixedly connected with a bottom plate 5. The bottom plate 5 is an important component of the hydraulic rod structure, which plays a role of basic support and stability. The bottom plate 5 is usually a planar structure, and its size and shape are designed to accommodate and support the hydraulic rod 11 and other related components. The bottom plate 5 is fixedly connected to the lower end of the frame 1, and can be connected firmly and reliably by bolts, welding or other suitable connection methods.

[0048] The working principle and use process of the utility model are as follows: First, install the bottom plate 5 in a suitable position as the basis of the hydraulic rod system. Then, fix the frame 1 to the bottom plate 5 to ensure that the frame 1 is stably located on the bottom plate. The side end of the hydraulic rod 11 is fixedly connected to the fixed plate 12 to ensure that the hydraulic rod 11 remains stable during the extension and retraction process. Next, the output end of the hydraulic rod 11 is fixedly connected to the connecting flange 13 so as to transmit the force of the hydraulic rod 11 to the external device. The side plate 3 is installed on the side end of the frame 1 and fastened to the frame 1 by bolts 4. Then, the limit plate 9 is installed on the other side end of the tooth plate 7 and matched with the side plate 3 to ensure that the limit plate 9 can effectively limit the movement of the tooth plate 7. The tooth plate 7 is installed inside the frame 1 so that it can match the protrusion plate 2. Then, the protrusion plate 2 is installed on the side end of the frame 1 and matched with the slide groove 8 of the tooth plate 7 to provide support and guidance for the sliding of the tooth plate 7. After all components are installed, debugging is performed to ensure that the working relationship between the components meets expectations. During the debugging process, the performance of the system can be optimized by adjusting the bolts 4, the limit plate 9 and other components. After the debugging is completed, normal operation can be started.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hydraulic rod with bidirectional telescopic function, characterized in that: include: Framework (1); A rotating rod (14), the rotating rod (14) is rotatably connected to the frame (1), a gear (15) is fixedly connected to the rotating rod (14), and a handle (16) is fixedly connected to the upper end of the rotating rod (14); A tooth plate (7), wherein the tooth plate (7) is slidably connected to the frame (1), and the tooth plate (7) is meshed with the gear (15); A connecting plate (10), wherein the connecting plate (10) is fixedly connected to one side end of the tooth plate (7), and a hydraulic rod (11) is fixedly connected to the side end of the connecting plate (10); and A limiting mechanism, the limiting mechanism comprising a top plate (6), a ratchet wheel (17), a ratchet tooth (18) and a torque spring (19), the top plate (6) being connected to the upper end of the frame (1), the ratchet wheel (17) being fixedly connected to the circumferential surface of the rotating rod (14), the ratchet tooth (18) being rotatably connected to the upper end of the top plate (6) via a rotating shaft, the torque spring (19) being connected between the ratchet tooth (18) and the ratchet wheel (17), and the ratchet tooth (18) and the ratchet wheel (17) being intermittently meshed.

2. The hydraulic rod with bidirectional telescopic function according to claim 1, characterized in that: The side ends of the frame (1) are connected to side plates (3), and bolts (4) are threadedly connected between the frame (1) and the side plates (3).

3. The hydraulic rod with bidirectional telescopic function according to claim 2, characterized in that: The side end of the frame (1) is fixedly connected with a protrusion plate (2), the side end of the tooth plate (7) is provided with a slide groove (8), and the protrusion plate (2) and the slide groove (8) match each other.

4. The hydraulic rod with bidirectional telescopic function according to claim 3, characterized in that: The other side end of the tooth plate (7) is fixedly connected to a limit plate (9), and the limit plate (9) matches the side plate (3).

5. The hydraulic rod with bidirectional telescopic function according to claim 4, characterized in that: A fixing plate (12) is fixedly connected to the side end of the hydraulic rod (11), and a connecting flange (13) is fixedly connected to the output end of the hydraulic rod (11).

6. The hydraulic rod with bidirectional telescopic function according to claim 5, characterized in that: The lower end of the frame (1) is fixedly connected to a bottom plate (5).

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