A balancing cylinder with a balancing valve

Abstract

This utility model relates to the field of balancing cylinder technology, and more particularly to a balancing cylinder with a balancing valve. It includes a cylinder body, an mounting base installed on the outer wall of the cylinder body, a docking seat installed on the top of the mounting base, a balancing valve body installed inside the docking seat, an adjusting component installed on the top of the balancing valve body, docking grooves embedded in the inner walls of both sides of the docking seat, a locking groove penetrating one end of the inner wall of the docking groove, and an abutment groove embedded in the top inner wall of the docking groove. This device can further fix the position of the balancing valve by inserting docking strips into the mounting base on both sides of the bottom of the balancing valve, in conjunction with abutment blocks and locking blocks, preventing the balancing valve from loosening or falling off during use. Simultaneously, the balancing valve is designed as a detachable structure, facilitating the opening of the top of the balancing valve for cleaning and maintenance of internal components such as the valve stem when needed, increasing the service life of the balancing valve, and thus improving its performance.

Description

Technical Field

[0001] This utility model relates to the field of balancing cylinder technology, specifically to a balancing cylinder with a balancing valve. Background Technology

[0002] A hydraulic balancer is a device that balances the workload using hydraulic pressure. It mainly consists of a hydraulic cylinder and a balancer valve. In actual operation, when the main load pressure increases, the fluid is forced to flow into the piston chamber that receives the main load pressure, thereby shortening the hydraulic cylinder of the piston chamber. At the same time, the balancer valve receives the load pressure and transmits a portion of the load pressure to the piston chamber used to balance the load pressure. The balancer valve adjusts its opening and closing state according to the difference between the main load pressure and the balancer pressure. When the hydraulic cylinder of the balancer piston chamber extends, the balancer load pressure increases, and vice versa.

[0003] Chinese utility model patent CN219911365U discloses a hydraulic cylinder with a balance valve, including "a cylinder body, a mounting base fixedly disposed on the outer side of the cylinder body, a balance valve body mounted on the upper side of the mounting base, a snap-fit ​​seat fixedly connected to the lower end of the balance valve body, and the connection between the snap-fit ​​seat and the mounting base is a plug-in connection, and two positioning components for fixing the snap-fit ​​seat in the internal position of the mounting base are both installed inside the snap-fit ​​seat"; however, the balance valve is only fixed by a retractable plug-in method, which is easily affected by external factors during actual use, causing the balance valve to loosen and fall off, thus affecting the use of the balance valve and failing to meet the usage requirements of the balance cylinder. Utility Model Content

[0004] The purpose of this utility model is to provide a balancing cylinder with a balancing valve, so as to solve the problem mentioned in the background art that the balancing valve is only fixed by a retractable plug, which is easily affected by external factors during actual use, causing the balancing valve to loosen and fall off, thus affecting the use of the balancing valve and failing to meet the use requirements of the balancing cylinder.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a balancing cylinder with a balancing valve, comprising a cylinder body, an mounting base installed on the outer wall of the cylinder body, a docking seat installed on the top of the mounting base, a balancing valve body installed inside the docking seat, and an adjusting component installed on the top of the balancing valve body.

[0006] The inner walls on both sides of the docking seat are embedded with docking grooves. A locking groove passes through one end of the inner wall of the docking groove. An abutment groove is embedded in the top inner wall of the docking groove. An abutment screw is threaded through the top of the abutment groove. A rotating seat is rotatably connected to the bottom of the abutment screw. An abutment block is installed at the bottom of the rotating seat. A locking block is slidably connected inside the docking groove. A locking screw is installed at one end of the locking block. A locking nut is threadedly connected to the external thread of the locking screw.

[0007] The beneficial effects of this utility model are as follows: by setting connecting strips on both sides of the bottom of the balance valve and inserting them into the mounting base, the position of the balance valve is further fixed in conjunction with the abutment block and locking block, preventing the balance valve from loosening or falling off during use. At the same time, the balance valve is set as a detachable structure, which makes it easy to open the top of the balance valve when needed to clean and maintain the internal valve stem and other components, increasing the service life of the balance valve and thus improving the performance of the balance valve.

[0008] To enable quick assembly and disassembly of the balance valve: Further configuration: the docking seat is a horizontally arranged U-shaped structure, and docking grooves are respectively opened on the inner walls of both sides of the U-shaped docking seat. The docking grooves are T-shaped cross-section structures. T-shaped cross-section strip docking bars are installed at the bottom of both outer walls of the balance valve body. The docking bars and docking grooves form a sliding connection structure. The bottom of the balance valve body and the top of the mounting seat fit together.

[0009] By adopting the above technical solution, the T-shaped cross-section docking groove and docking strip are designed to facilitate the quick sliding positioning of the balance valve, thereby enabling the quick installation and removal of the balance valve. At the same time, the design of the T-shaped cross-section docking groove and docking strip also prevents the balance valve from shaking during use, thus improving the stability of the balance valve installation.

[0010] To prevent the balancing valve from loosening and falling off due to external forces during use: The further configuration is as follows: three abutment grooves are provided on both sides of the docking seat, and a circular fixing block with a diameter larger than that of the abutment screw is installed at the bottom of the abutment screw, and a circular groove corresponding to the fixing block is embedded in the top of the rotating seat. The abutment block is slidably connected to the inside of the abutment groove, and the bottom of the abutment block is in contact with the top of the docking strip.

[0011] By adopting the above technical solution, a rotating abutment screw is set on the top of the docking seat. The screw connection drives the abutment block below to abut against the top of the docking strip, thereby locking the position of the docking strip in the docking groove and preventing the docking strip from loosening after installation, thus improving the stability of the balance valve.

[0012] To lock the installation position of the balancing valve: The locking screw is further configured such that it is slidably connected to the inside of the locking groove, and the locking block is in contact with one end of the mating strip, and the locking nut is in contact with the outer walls of both sides of the mating seat.

[0013] By adopting the above technical solution, a locking block is set up to lock the position in conjunction with a locking nut and a screw, thus fixing the mating strip in the mating groove. At the same time, with the cooperation of the locking groove, it is easy to fix mating strips of various lengths, thereby improving the stability of the balance valve installation.

[0014] To clean the inside of the balancing valve: The further configuration is as follows: the interior of the balance valve body has a valve body cavity, the top center of the valve body cavity has an adjustment cavity, the top of the adjustment cavity is equipped with a docking flange, the adjustment assembly includes an installation flange, and the docking flange and the installation flange form a flange connection.

[0015] By adopting the above technical solution, a flange connected to the top of the regulating chamber is installed, which increases the sealing performance of the balancing valve and also facilitates the replacement and maintenance of the internal components of the balancing valve when needed, thereby improving the use of the balancing valve.

[0016] To enable quick assembly and disassembly of the adjustment components: The mounting flange is further configured such that: an adjusting seat is mounted on the top of the mounting flange; an adjusting screw is rotatably connected to the center of the adjusting seat; a connecting bracket is threadedly connected to the bottom of the adjusting screw; connecting bolts are mounted at the four corners of the bottom of the connecting bracket; and adjusting blocks are threadedly connected to the bottom of the connecting bolts.

[0017] By adopting the above technical solution, the connecting bracket and the adjusting block are connected by bolts, and the connecting bracket is connected by threads. This makes it easy to disassemble the internal components when the adjusting component is removed, thereby facilitating quick cleaning, maintenance and replacement, and improving the cleaning and maintenance efficiency of the balance valve.

[0018] To achieve the regulation of the internal flow velocity of the balancing valve: The connection frame is further configured such that a cross groove is provided at the bottom, and the length of the cross groove is the same as the length of the bottom external thread of the adjusting screw, and the adjusting block is slidably connected to the inside of the adjusting cavity.

[0019] By adopting the above technical solution, the adjusting block connected to the connecting frame is driven to move up and down in the adjusting cavity by rotating the adjusting screw, thereby blocking the flow in the valve body cavity and achieving the purpose of adjusting the flow rate, which is convenient for control and use.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the present utility model; Figure 2 This is an enlarged front view of the docking seat and the balance valve body of this utility model; Figure 3 This is an exploded enlarged schematic diagram of the docking seat of this utility model; Figure 4 This is an enlarged front view of the interior of the balance valve body of this utility model; Figure 5 This is an exploded magnified schematic diagram of the adjustment component of this utility model.

[0022] In the diagram: 1. Cylinder body; 2. Mounting seat; 3. Docking seat; 301. Docking groove; 302. Locking groove; 303. Abutment groove; 304. Abutment screw; 305. Rotating seat; 306. Abutment block; 307. Locking block; 308. Locking screw; 309. Locking nut; 4. Balance valve body; 401. Docking bar; 402. Valve body cavity; 403. Adjusting cavity; 404. Docking flange; 5. Adjusting assembly; 501. Mounting flange; 502. Adjusting seat; 503. Adjusting screw; 504. Connecting bracket; 505. Connecting bolt; 506. Adjusting block. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings.

[0024] See Figures 1 to 5 A balancing cylinder with a balancing valve includes a cylinder body 1, an mounting seat 2 installed on the outer wall of the cylinder body 1, a docking seat 3 installed on the top of the mounting seat 2, a balancing valve body 4 installed inside the docking seat 3, and an adjusting component 5 installed on the top of the balancing valve body 4.

[0025] The inner walls on both sides of the mating seat 3 are embedded with mating grooves 301. One end of the inner wall of the mating groove 301 is penetrated by a locking groove 302. The inner wall of the top of the mating groove 301 is embedded with an abutment groove 303. The top of the abutment groove 303 is threaded through with an abutment screw 304. The bottom of the abutment screw 304 is rotatably connected to a rotating seat 305. The bottom of the rotating seat 305 is equipped with an abutment block 306. The inside of the mating groove 301 is slidably connected with a locking block 307. One end of the locking block 307 is equipped with a locking screw 308. The external thread of the locking screw 308 is connected to a locking nut 309.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the docking seat 3 is a horizontally arranged U-shaped structure, and the docking grooves 301 are respectively opened on the inner walls of both sides of the U-shaped docking seat 3. The docking grooves 301 are T-shaped cross-section structures. The bottom of the outer walls on both sides of the balance valve body 4 are equipped with T-shaped cross-section strip docking strips 401. The docking strips 401 and the docking grooves 301 form a sliding connection structure. The bottom of the balance valve body 4 and the top of the mounting seat 2 are in contact with each other.

[0027] In this embodiment, as Figure 2 , Figure 3 As shown, three abutment grooves 303 are respectively provided on both sides of the docking seat 3, and a circular fixing block with a diameter larger than that of the abutment screw 304 is installed at the bottom of the abutment screw 304. The top of the rotating seat 305 is embedded with a circular groove corresponding to the fixing block. The abutment block 306 is slidably connected to the inside of the abutment groove 303, and the bottom of the abutment block 306 is in contact with the top of the docking strip 401.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the locking screw 308 is slidably connected to the inside of the locking groove 302, and the locking block 307 is in contact with one end of the mating strip 401, and the locking nut 309 is in contact with the outer walls of both sides of the mating seat 3.

[0029] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the inside of the balance valve body 4 has a valve body cavity 402, and the top center of the valve body cavity 402 has an adjustment cavity 403. A docking flange 404 is installed on the top of the adjustment cavity 403. The adjustment assembly 5 includes a mounting flange 501, and the docking flange 404 and the mounting flange 501 form a flange connection.

[0030] In this embodiment, as Figure 4 and Figure 5 As shown, an adjusting seat 502 is installed on the top of the mounting flange 501. An adjusting screw 503 is rotatably connected to the center of the adjusting seat 502. A connecting bracket 504 is threadedly connected to the bottom of the adjusting screw 503. Connecting bolts 505 are installed at the four corners of the bottom of the connecting bracket 504. Adjusting blocks 506 are threadedly connected to the bottom of the connecting bolts 505.

[0031] In this embodiment, as Figure 4 and Figure 5 As shown, the bottom of the connecting bracket 504 is provided with a cross groove, and the length of the cross groove is the same as the length of the bottom external thread of the adjusting screw 503. The adjusting block 506 is slidably connected to the inside of the adjusting cavity 403.

[0032] The working process of the balancing cylinder equipped with a balancing valve is as follows: When installing the balance valve, firstly, rotate the locking nuts 309 on the outer walls of both sides of the docking seat 3 to open the locking nuts 309 and the locking screw 308, and slide the locking block 307 connected to the locking screw 308 out of the docking groove 301 along the locking groove 302; Then, insert one end of the mating strip 401 on the outer wall of both sides of the bottom of the balance valve body 4 into the mating groove 301, slide the balance valve body 4 along one end of the U-shaped end notch of the mating seat 3 to the other end of the mating seat 3, and slide the locking block 307 back into the locking groove 302. At the same time, the locking screw 308 slides in the locking groove 302. When one end of the locking block 307 is in contact with one end of the mating strip 401, rotate the locking nut 309 to lock. Next, rotate the abutment screws 304 connected to the top threads on both sides of the docking seat 3. With the bottom disc of the abutment screws 304 rotating in the rotating seat 305, push the abutment block 306 at the bottom of the rotating seat 305 to slide downward in the abutment groove 303 until it is in contact with the top of the docking strip 401, and the installation of the balance valve is completed. Finally, when it is necessary to balance the internal flow during the use of the balancing cylinder, rotate the adjusting screw 503 at the top of the balancing valve body 4 to drive the connecting bracket 504, which is threadedly connected to the bottom of the adjusting cavity 403, to move up and down. This will cause the adjusting block 506 connected to the connecting bracket 504 to slide up and down in the adjusting cavity 403, thereby adjusting the flow in the valve body cavity 402.

Claims

1. A counterbalance cylinder with a counterbalance valve, comprising a cylinder body (1), characterized in that: The cylinder body (1) is equipped with a mounting base (2) on its outer wall, a docking seat (3) is installed on the top of the mounting base (2), a balance valve body (4) is installed inside the docking seat (3), and an adjustment component (5) is installed on the top of the balance valve body (4). The inner walls of both sides of the docking seat (3) are embedded with docking grooves (301). One end of the inner wall of the docking groove (301) is penetrated by a locking groove (302). The inner wall of the top of the docking groove (301) is embedded with an abutment groove (303). The top of the abutment groove (303) is threaded through an abutment screw (304). The bottom of the abutment screw (304) is rotatably connected to a rotating seat (305). The bottom of the rotating seat (305) is equipped with an abutment block (306). The inside of the docking groove (301) is slidably connected to a locking block (307). One end of the locking block (307) is equipped with a locking screw (308). The external thread of the locking screw (308) is connected to a locking nut (309).

2. A balancing cylinder with a balancing valve as described in claim 1, characterized in that: The docking seat (3) is a horizontally arranged U-shaped structure, and the docking groove (301) is respectively opened on the inner walls of both sides of the U-shaped docking seat (3). The docking groove (301) is a T-shaped cross-section structure. The bottom of the outer walls on both sides of the balance valve body (4) is equipped with a T-shaped cross-section strip docking bar (401). The docking bar (401) and the docking groove (301) form a sliding connection structure. The bottom of the balance valve body (4) and the top of the mounting seat (2) are in contact with each other.

3. A balancing cylinder with a balancing valve as described in claim 2, characterized in that: The docking seat (3) is provided with three abutment grooves (303) on both sides, and a circular fixing block with a diameter larger than that of the abutment screw (304) is installed at the bottom of the abutment screw (304). The rotating seat (305) has a circular groove corresponding to the fixing block embedded in its top. The abutment block (306) is slidably connected to the inside of the abutment groove (303), and the bottom of the abutment block (306) is in contact with the top of the docking strip (401).

4. A balancing cylinder with a balancing valve as described in claim 2, characterized in that: The locking screw (308) is slidably connected to the inside of the locking groove (302), and the locking block (307) is in contact with one end of the docking bar (401), and the locking nut (309) is in contact with the outer walls of both sides of the docking seat (3).

5. A balancing cylinder with a balancing valve as described in claim 1, characterized in that: The inside of the balance valve body (4) is a valve body cavity (402), and the top center of the valve body cavity (402) is a regulating cavity (403). A docking flange (404) is installed on the top of the regulating cavity (403). The regulating assembly (5) includes a mounting flange (501), and a flange connection is formed between the docking flange (404) and the mounting flange (501).

6. A balancing cylinder with a balancing valve as described in claim 5, characterized in that: An adjusting seat (502) is installed on the top of the mounting flange (501). An adjusting screw (503) is rotatably connected to the center of the adjusting seat (502). A connecting bracket (504) is threaded to the bottom of the adjusting screw (503). Connecting bolts (505) are installed at the four corners of the bottom of the connecting bracket (504). An adjusting block (506) is threaded to the bottom of the connecting bolt (505).

7. A balancing cylinder with a balancing valve as described in claim 6, characterized in that: The bottom of the connecting frame (504) is provided with a cross groove, and the length of the cross groove is the same as the length of the bottom external thread of the adjusting screw (503). The adjusting block (506) is slidably connected to the inside of the adjusting cavity (403).

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