Hydraulic cylinder with buffering function

Abstract

The utility model provides a hydraulic cylinder with a buffering function, and relates to the field of hydraulic cylinders. The buffering structure is arranged outside the telescopic end of the small hydraulic cylinder in a sleeving mode, an auxiliary groove is formed in the buffering structure through an outer piece, a clamping hoop structure of a U-shaped structure is embedded into the auxiliary groove, and shifting rod structures are fixed to the two ends of the bottom of the outer side of the clamping hoop structure made of elastic metal materials. When any one of a spring, a buffer block and a pressing plate is damaged, after a connecting part at the top end of a small hydraulic cylinder is taken down, a driving lever structure is directly pulled to move outwards, so that the driving lever structure is separated from the interior of a clamping groove, then the driving lever structure and a hoop structure are directly pulled to ascend, limiting on a fixing rod is relieved, and the fixing rod is taken down, so that the fixing rod is fixed. The buffer structure is convenient to disassemble, the disassembly efficiency and the replacement efficiency are improved, and the problems that the elasticity is reduced, the buffer strength is influenced and the replacement is not convenient enough after a common hydraulic cylinder with a buffer function and a buffer structure are elastic parts which are used for many times are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder with a buffer function. Background Art

[0002] The hydraulic cylinder is a retractable linear actuator, and its output force is proportional to the effective area of ​​the piston and the pressure difference on both sides. The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines. The hydraulic cylinder is safe and reliable, suitable for underwater, single-acting, load retraction, self-locking nuts, and makes the load safer. The hydraulic cylinder is designed with a safety pressure holding device and a built-in pressure relief valve to avoid overload, thereby protecting the safe operation of the self-locking hydraulic jack. The end of the hydraulic cylinder is usually connected to the object to make it more flexible during operation. When a small hydraulic cylinder encounters heavy pressure or reset, it usually uses a buffer structure to eliminate the impact force. The common hydraulic cylinders with buffer functions on the market usually need to repair the cylinder body when temporarily replaced or repaired, but the disassembly of the bottom of the cylinder body is more laborious, which affects the maintenance efficiency, and the buffer structure is an elastic component. After repeated use, the elasticity will decrease, affecting the buffer strength, and the replacement is not convenient enough. Utility Model Content

[0003] The disclosed embodiment relates to a hydraulic cylinder with a buffer function, wherein the bottom of the small hydraulic cylinder is connected to a kit plug-in and a clamping block assembly through a connecting head, and is fixedly connected to a connecting piece at the same time, so that the fixing assembly is rotatably connected to an object, making the small hydraulic cylinder more flexible to use; when the cylinder body of the small hydraulic cylinder needs to be repaired or replaced, a tool is directly used to squeeze the clamping block assembly inward to disengage it from the inside of a square groove, thereby releasing the fixation of the plug-in; and then the displacement of the small hydraulic cylinder is directly controlled to make the connecting head rise and disengage from the inside of the kit, so that the plug-in can be easily pulled out from the inside of the bottom groove, and the small hydraulic cylinder can be easily removed, facilitating replacement and repair.

[0004] In a first aspect of the present disclosure, a hydraulic cylinder with a buffer function is provided, specifically comprising: a small hydraulic cylinder; four round rods are provided on the outside of the small hydraulic cylinder, the small hydraulic cylinder is a retractable structure, a round hole is opened on the top of the small hydraulic cylinder, the bottom of the small hydraulic cylinder is connected to the kit through a connecting head, two T-shaped plug-ins are welded on the inner side of the kit, and a freely retractable block assembly is installed on the inner side of the plug-in with arc structures at both ends through a spring, and the inner side of the top of the block assembly is an inclined structure; a buffer structure; the buffer structure is sleeved on the outside of the telescopic end of the small hydraulic cylinder, the buffer structure is opened with an auxiliary groove through an external part, a U-shaped clamp structure is embedded in the inside of the auxiliary groove, and a lever structure is fixed at both ends of the bottom outside the clamp structure made of elastic metal.

[0005] In at least some embodiments, a U-shaped connector is welded to the bottom of the small hydraulic cylinder, and a T-shaped bottom groove is provided on both sides of the connector, and a plug-in is inserted into the bottom groove. A square hole is provided on the inner side of each bottom groove, and a clamping block assembly is inserted into the square hole for fixation; two fixing assemblies are installed on the outside of the small hydraulic cylinder, and the two ends of the fixing assemblies are clamped with round rods, and a pulling piece is welded to the outside of the two fixing assemblies, and a contact block made of flexible rubber is bonded and fixed to the inner side of each fixing assembly, and the contact block fits the outside of the small hydraulic cylinder; the outside of the connector is covered with a rectangular frame structure kit, and a connecting piece with a circular ring structure is welded to the bottom of each plug-in.

[0006] In at least some embodiments, an outer part is fixed on each side of the buffer structure, an auxiliary groove is provided on each side of each outer part, through holes are provided inside the buffer structure and the outer part, the interior of the auxiliary groove is connected with the interior of the through hole, a fixing rod is inserted into the interior of the through hole, and the fixing rod is simultaneously inserted into the circular hole at the top of the small hydraulic cylinder, a groove is provided on the side of the fixing rod, and a clamp structure is embedded in the interior of the groove; a clamping groove is provided on each side of the outer part, the interior of the clamping groove is connected with the auxiliary groove, and the lever structure is embedded in the interior of the clamping groove, and a force-bearing plate that is evenly arranged in an annular shape is welded to the bottom of the buffer structure, and the force-bearing plate is inclined; the bottom of the force-bearing plate is welded and fixed to the pressure plate, and the top of the pressure plate of the annular structure is connected to the bottom of the buffer structure through a spring, and a buffer block made of flexible rubber is bonded to both sides of the bottom of the pressure plate.

[0007] The utility model provides a hydraulic cylinder with a buffer function, which has the following beneficial effects:

[0008] The bottom of the small hydraulic cylinder is connected to the kit plug-in and the block assembly through a connecting head, and is fixedly connected to the connecting piece at the same time, so that the fixed assembly is rotatably connected to the object, making the small hydraulic cylinder more flexible to use. When the small hydraulic cylinder body needs to be repaired or replaced, the block assembly is directly squeezed inward using tools to disengage it from the inside of the square groove, releasing the fixation of the plug-in, and then the displacement of the small hydraulic cylinder is directly controlled to make the connecting head rise and disengage from the inside of the kit. The plug-in is easily pulled out from the inside of the bottom groove, and the small hydraulic cylinder is easily removed, making replacement and repair convenient.

[0009] When the small hydraulic cylinder encounters an impact or reset, the small hydraulic cylinder drives the buffer structure to move together, so that the buffer block contacts the small hydraulic cylinder, and the elasticity of the spring, buffer block and pressure plate is used to eliminate the impact force, thereby improving the buffer effect. At the same time, when any of the spring, buffer block and pressure plate is damaged, after removing the top connecting part of the small hydraulic cylinder, the lever structure is directly pulled outward to disengage the lever structure from the inside of the slot, and then the lever structure and the clamp structure are directly pulled up to release the limit on the fixed rod. By removing the fixed rod, the buffer structure can be easily disassembled, thereby improving the disassembly efficiency and replacement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0011] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0012] In the attached picture:

[0013] Figure 1 A three-dimensional structural schematic diagram of the present application is shown;

[0014] Figure 2 A schematic diagram of the exploded bottom-up structure of the present application is shown;

[0015] Figure 3 A schematic diagram of the exploded three-dimensional structure of the present application is shown;

[0016] Figure 4 The schematic diagram of the exploded three-dimensional structure of the small hydraulic cylinder of the present application is shown;

[0017] Figure 5 A schematic diagram of the exploded bottom view of the small hydraulic cylinder of the present application is shown;

[0018] Figure 6 A schematic diagram of a partial cross-section exploded three-dimensional structure of the buffer structure of the present application is shown;

[0019] Reference numerals list

[0020] 1. Small hydraulic cylinder; 101. Connector; 102. Bottom groove; 103. Fixing assembly; 104. Contact block; 105. Kit; 106. Plug-in; 107. Block assembly; 108. Connector;

[0021] 2. Buffer structure; 201. External part; 202. Auxiliary groove; 203. Clamping groove; 204. Clamping structure; 205. Push rod structure; 206. Force plate; 207. Pressing plate; 208. Buffer block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of 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.

[0023] Example 1: Please refer to Figures 1 to 6 :

[0024] The utility model proposes a hydraulic cylinder with a buffer function, comprising: a small hydraulic cylinder 1; four round rods are arranged on the outside of the small hydraulic cylinder 1, the small hydraulic cylinder 1 is a retractable structure, a round hole is opened on the top of the small hydraulic cylinder 1, and a fixing rod is inserted to fix the buffer structure 2 with the small hydraulic cylinder 1, the bottom of the small hydraulic cylinder 1 is connected with a kit 105 through a connector 101, two T-shaped plug-ins 106 are welded on the inner side of the kit 105, which are inserted into the inside of a bottom groove 102 and are positioned and connected with the connector 101, and a freely retractable clamping block assembly 107 is installed on the inner side of the plug-in 106 with arc structures at both ends through a spring, and the inner side of the top of the clamping block assembly 107 is The inclined structure, with the help of the elasticity of the spring, allows the block assembly 107 to be inserted into the inside of the square groove and firmly clamped. By controlling the movement of the block assembly 107, the small hydraulic cylinder 1 can be freely controlled to be disassembled or fixed; the buffer structure 2; the buffer structure 2 is sleeved on the outside of the telescopic end of the small hydraulic cylinder 1, and the buffer structure 2 is provided with an auxiliary groove 202 through an outer part 201, and a U-shaped clamp structure 204 is embedded in the inside of the auxiliary groove 202. The clamp structure 204 made of elastic metal material is fixed with a lever structure 205 at both ends of the outer bottom. The clamp structure 204 is tilted by the lever structure 205, which is convenient for releasing the limit of the clamp structure 204 and the fixing rod, and convenient for disassembly and replacement of the buffer structure 2.

[0025] In the present disclosure, Figure 4 and Figure 5As shown, a U-shaped connector 101 is welded at the bottom of the small hydraulic cylinder 1 for connecting with a connector 108. A T-shaped bottom groove 102 is provided on both sides of the connector 101. A plug-in 106 is inserted into the bottom groove 102 to control the positioning and connection of the plug-in 106. A square hole is provided on the inner side of each bottom groove 102. A block assembly 107 is inserted into the inside of the square hole to fix the plug-in 106 firmly and prevent the plug-in 106 from detaching from the inside of the bottom groove 102. Two fixing assemblies 103 are installed on the outside of the small hydraulic cylinder 1. The two ends of the fixing assembly 103 are externally It is clamped with the round rod for positioning and fixing. A pulling piece is welded to the outside of the two fixing components 103. A contact block 104 made of flexible rubber is bonded and fixed to the inner side of each fixing component 103. The contact block 104 fits with the outside of the small hydraulic cylinder 1 and is non-slip fixed to the small hydraulic cylinder 1, making it convenient to control the movement of the small hydraulic cylinder 1 through the pulling piece. The outside of the connecting head 101 is sheathed with a kit 105 with a rectangular frame structure, which is positioned and sleeved with the connecting head 101. A connecting piece 108 with a circular ring structure is welded to the bottom of each plug-in 106 for connecting to an object so that the small hydraulic cylinder 1 can rotate freely.

[0026] In the present disclosure, Figure 3 and Figure 6 As shown, an outer member 201 is fixed on both sides of the buffer structure 2, and an auxiliary groove 202 is provided on both sides of each outer member 201. Through holes are provided inside the buffer structure 2 and the outer member 201. The inside of the auxiliary groove 202 is connected with the inside of the through hole, so that the clamp structure 204 is inserted into the inside of the auxiliary groove 202 and the inside of the through groove at the same time. A fixing rod is inserted into the inside of the through hole, and the fixing rod is inserted into the inside of the circular hole at the top of the small hydraulic cylinder 1 at the same time. A groove is provided on the side of the fixing rod, and the clamp structure 204 is embedded in the inside of the groove to limit the fixing rod; a clamping groove 203 is provided on both sides of the outer member 201, and the clamping groove 203 is provided on both sides of the outer member 201. The interior of 03 is connected with the auxiliary groove 202, and the lever structure 205 is embedded in the interior of the card groove 203 to limit the lever structure 205. A ring-shaped evenly arranged force-bearing plate 206 is welded to the bottom of the buffer structure 2. The force-bearing plate 206 is inclined and made of elastic metal material to eliminate impact force with the help of elasticity; the bottom of the force-bearing plate 206 is welded and fixed to the pressure plate 207, and the top of the pressure plate 207 of the annular structure is connected to the bottom of the buffer structure 2 through a spring. A buffer block 208 made of flexible rubber material is bonded to both sides of the bottom of the pressure plate 207, which is used to flexibly contact with the top of the small hydraulic cylinder 1 to avoid wear at the contact position.

[0027] The working principle of this embodiment is as follows: when the small hydraulic cylinder 1 is installed, the connecting piece 108 is fixed in advance to rotate and connect with the object, and then the top connection of the small hydraulic cylinder 1 is controlled, and then the plug-in 106 is controlled to be inserted into the inside of the bottom groove 102, and the kit 105 is set on the outside of the connecting head 101, so that the two are positioned and connected, and then the spring pushes the block assembly 107 to move outward, so that the block assembly 107 is embedded in the inside of the square groove, and the plug-in 106 is clamped and fixed, so that the connecting piece 108 is firmly connected with the connecting head 101, and the connecting head 101 is positioned and supported at the same time, so that when the small hydraulic cylinder 1 is used, when it encounters stamping or resetting, the buffer block 208 is connected with the small hydraulic cylinder 1 The top of the small hydraulic cylinder 1 is flexibly in contact with the force plate 206, the spring and the buffer block 208, and at the same time, the force plate 206, the spring and the buffer block 208 are buffered by their own elasticity. When the force plate 206, the spring and the buffer block 208 are damaged, the top of the small hydraulic cylinder 1 is released, and the lever structure 205 is directly pulled to make the clamp structure 204 tilt elastically to release the fixation of the fixing rod. By removing the fixing rod, the buffer structure 2 is conveniently disassembled. If the cylinder body of the small hydraulic cylinder 1 is damaged, a tool is used to push the clamp block assembly 107 inward to release the fixation of the plug-in 106. By controlling the movement of the small hydraulic cylinder 1, the kit 105 and the plug-in 106 can be disassembled, which is convenient for repairing the small hydraulic cylinder 1.

[0028] In this article, there are a few points to note:

[0029] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0030] 2. In the absence of conflict, the embodiments of the present disclosure and the features in the embodiments are combined with each other to obtain new embodiments.

[0031] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A hydraulic cylinder with a buffer function, comprising: A small hydraulic cylinder (1); four round rods are arranged on the outside of the small hydraulic cylinder (1); the small hydraulic cylinder (1) is a telescopic structure, characterized in that a round hole is opened at the top of the small hydraulic cylinder (1); the bottom of the small hydraulic cylinder (1) is connected to a kit (105) through a connector (101); two T-shaped plug-ins (106) are welded on the inside of the kit (105); a freely retractable clamping block assembly (107) is installed on the inside of the plug-in (106) with arc-shaped structures at both ends through a spring; the top inner side of the clamping block assembly (107) is an inclined structure; a buffer structure (2); the buffer structure (2) is sleeved on the outside of the telescopic end of the small hydraulic cylinder (1); an auxiliary groove (202) is opened on the buffer structure (2) through an outer part (201); a U-shaped clamp structure (204) is embedded in the inside of the auxiliary groove (202); and a lever structure (205) is fixed at both ends of the bottom of the outer side of the clamp structure (204) made of elastic metal.

2. A hydraulic cylinder with a buffer function according to claim 1, characterized in that: A U-shaped connecting head (101) is welded to the bottom of the small hydraulic cylinder (1), a T-shaped bottom groove (102) is provided on both sides of the connecting head (101), a plug-in unit (106) is inserted into the bottom groove (102), and a square hole is provided on the inner side of each bottom groove (102), and a clamping block assembly (107) is inserted into the inside of the square hole for fixation.

3. A hydraulic cylinder with a buffer function according to claim 2, characterized in that: Two fixing components (103) are installed on the outside of the small hydraulic cylinder (1), the two ends of the fixing components (103) are externally clamped with round rods, a pulling piece is welded to the outside of the two fixing components (103), and a contact block (104) made of a flexible rubber material is bonded and fixed to the inside of each fixing component (103), and the contact block (104) is in contact with the outside of the small hydraulic cylinder (1).

4. A hydraulic cylinder with a buffer function according to claim 3, characterized in that: The connector (101) is sheathed with a sleeve (105) of a rectangular frame structure, and a connecting piece (108) of a circular ring structure is welded to the bottom of each plug-in (106).

5. A hydraulic cylinder with a buffer function according to claim 4, characterized in that: An outer part (201) is fixed to each side of the buffer structure (2), and an auxiliary groove (202) is provided on each side of each outer part (201). Through holes are provided inside the buffer structure (2) and the outer part (201), and the inside of the auxiliary groove (202) is connected to the inside of the through hole. A fixing rod is inserted into the inside of the through hole, and the fixing rod is simultaneously inserted into the inside of the circular hole at the top of the small hydraulic cylinder (1). A groove is provided on the side of the fixing rod, and the clamp structure (204) is embedded in the inside of the groove.

6. A hydraulic cylinder with a buffer function according to claim 5, characterized in that: A clamping groove (203) is respectively provided on both sides of the outer member (201); the interior of the clamping groove (203) is communicated with the auxiliary groove (202); the lever structure (205) is embedded in the interior of the clamping groove (203); and a ring-shaped evenly arranged force-bearing plate (206) is welded to the bottom of the buffer structure (2); the force-bearing plate (206) is arranged in an inclined manner.

7. A hydraulic cylinder with a buffer function according to claim 6, characterized in that: The bottom of the force-bearing plate (206) is welded and fixed to the pressure plate (207), the top of the pressure plate (207) with an annular structure is connected to the bottom of the buffer structure (2) via a spring, and a buffer block (208) made of a flexible rubber material is bonded to both sides of the bottom of the pressure plate (207).

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