Zero-leakage hydraulic cylinder

Abstract

The utility model discloses a zero-leakage hydraulic cylinder, which relates to the field of hydraulic cylinders and comprises a main support plate, mounting side strips are symmetrically welded on two sides of the main support plate, a clamping screw is vertically inserted into the top end of the main support plate, mounting end grooves are symmetrically formed in the top end and the bottom end of the main support plate, and the mounting end grooves are connected with the mounting side strips. The device comprises a main supporting plate, one side edge of the main supporting plate is in horizontal butt joint with buckling main blocks, a connecting screw rod is vertically inserted between the buckling main blocks, a connecting pipe body is horizontally inserted between the side edges, away from the main supporting plate, of the buckling main blocks, a main tank body is vertically arranged between the buckling main blocks, and one side edge of the main supporting plate is in butt joint with a butt joint sealing plate. A vertical side groove is vertically formed in one side edge of the main supporting plate, a sealing rubber ring is fixedly connected to one side edge of the butt joint sealing plate in a clamped mode, multiple reinforcing connecting structures are adopted, the situation that dislocation and gaps are formed in the whole after installation is not prone to being formed, and meanwhile the sealing performance is better under the multiple sealing structures.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic cylinder technical field, concretely is a kind of zero leakage hydraulic cylinder. BACKGROUND

[0002] Hydraulic cylinder is the hydraulic energy into mechanical energy, do linear reciprocating motion (or swing motion) hydraulic actuator.It is simple in structure, and reliable in work.When it is used to realize reciprocating motion, it can avoid speed reducer, and there is no transmission gap, and movement is stable, so it is widely used in the hydraulic system of various machines.Hydraulic cylinder output force and the effective area of piston and the pressure difference of its two sides are proportional;Hydraulic cylinder is basically composed of cylinder and cylinder cover, piston and piston rod, sealing device, buffer device and exhaust device.The buffer device and exhaust device are determined according to specific application occasion, and other devices are essential.

[0003] For the hydraulic cylinder in use now, since just in the both ends of tank body thread fixing upper end head structure, make the thread connection still have gap condition, lead to oil from gap position overflow and form the leakage condition, and in single connection position sleeve connection seal ring structure makes the effect of sealing bad, still unable to form the use of not leaking. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of zero leakage hydraulic cylinders, to solve the problem that the above background technology proposes for the hydraulic cylinder in use now, since just in the both ends of tank body thread fixing upper end head structure, make the thread connection still have gap condition, lead to oil from gap position overflow and form the leakage condition, and in single connection position sleeve connection seal ring structure makes the effect of sealing bad, still unable to form the use of not leaking.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of zero leakage hydraulic cylinder, including main support plate, both sides edge of the main support plate is symmetrically welded with installation side strip, the top end of the main support plate is vertically inserted with clamping screw rod, the top end and the bottom end of the main support plate are symmetrically provided with installation end slot, one side edge of the main support plate is horizontally butt-jointed with buckling main block, the buckling main block is vertically inserted with connecting screw rod between the buckling main block, the buckling main block is horizontally inserted with connecting pipe body in the side edge of buckling main block away from the main support plate, the buckling main block is vertically provided with main tank between the buckling main block, one side edge of the main support plate is butt-jointed with butt-jointed sealing plate, one side edge of the butt-jointed sealing plate is fixedly clamped with sealing rubber ring, one end of the butt-jointed sealing plate is horizontally welded with end clamping block, the inside end of the installation end slot is provided with mounting screw hole, the top surface of the butt-jointed sealing plate is provided with sleeve joint hole, one side edge of the buckling main block is horizontally welded with installation side block, the top surface of the installation side block is symmetrically provided with fixed through-hole, the bottom surface of the buckling main block is provided with buckling groove, the inside edge of the buckling groove is fixedly clamped with sealing rubber ring, the inside end of the buckling groove is provided with sealing top groove, the through-hole inside edge of the buckling main block is fixedly clamped with sleeve joint sealing ring, both ends of the main tank are symmetrically fixedly provided with matched insertion ring.

[0007] As a preferred embodiment of the utility model: the number of installation side strips is two, and the two installation side strips are arranged in parallel between each other, and the two installation side strips are symmetrically fixedly arranged at the edge position of the side edge of the main support plate, and the clamping screw rod is vertically inserted and arranged in the inside edge of the vertical side slot.

[0008] As a preferred embodiment of the utility model: the installation end slot is symmetrically provided at the edge position of the top end and the bottom end of the main support plate, one end of the installation end slot extends through the side wall of the main support plate to the outside in an open manner, the number of buckling main blocks is two, and the two buckling main blocks are arranged in parallel between each other in a superimposed manner, and one end of the buckling main block is butt-jointed and arranged at the open end of the installation end slot.

[0009] As a preferred embodiment of the utility model: the number of connecting screw rods is four, and the four connecting screw rods are arranged in parallel between each other, both ends of the connecting screw rod extend through the top surface of the buckling main block near the inside of the four-corner through hole, and the threaded end nut is fixedly connected and arranged, the connecting pipe body is horizontally inserted and arranged in the side through hole of the buckling main block, and the extension end is in communication with the inside of the main tank.

[0010] As a preferred embodiment of the utility model: the both ends of main tank body correspond to be inserted and connected to be arranged in the inner side of buckle groove, the butt joint sealing plate is arranged between each other in superposition type parallelly, and one end of butt joint sealing plate is connected to be arranged in the side opening end of vertical side groove, the vertical side groove is vertically opened in the side edge middle line position of main support plate, the sealing rubber ring is fixedly arranged in the opening end edge position of sleeve joint hole, and one end of sealing rubber ring is arranged in the side edge position of sealing rubber ring, one end of end clamping block is horizontally clamped and is arranged in the inner side of vertical side groove, and end clamping block is screw connected and is arranged in the outer side of clamping screw, and sleeve joint hole is sleeved and arranged in the outer side of main tank body near both ends.

[0011] As a preferred embodiment of the utility model: the both ends of main tank body correspond to be inserted and connected to be arranged in the inner side of buckle groove, the butt joint sealing plate is arranged between each other in superposition type parallelly, and one end of butt joint sealing plate is connected to be arranged in the side opening end of vertical side groove, the vertical side groove is vertically opened in the side edge middle line position of main support plate, the sealing rubber ring is fixedly arranged in the opening end edge position of sleeve joint hole, and one end of sealing rubber ring is arranged in the side edge position of sealing rubber ring, one end of end clamping block is horizontally clamped and is arranged in the inner side of vertical side groove, and end clamping block is screw connected and is arranged in the outer side of clamping screw, and sleeve joint hole is sleeved and arranged in the outer side of main tank body near both ends.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a kind of zero leakage hydraulic cylinders, including main tank body, two buckle main blocks, two end clamping blocks, two sealing rubber rings, two butt joint sealing plates, two sleeve joint holes, two vertical side grooves, two installation end grooves, two installation side blocks, two installation end slots, two sealing top grooves, two installation end screw holes and two clamping screws, the both ends of main tank body are inserted and connected to be arranged in the inner side of sleeve joint hole, then let two buckle main blocks buckle and be arranged in the both ends position of main tank body, let the both ends of main tank body be inserted and connected to be arranged in the inner side of buckle groove, after being inserted and connected to the inner side of sealing top groove of cooperation insertion ring, let installation side block correspond clamping and be arranged in the inner side of installation end groove, let fixed through-hole butt joint and be arranged in the opening end of installation screw hole by bolt fixed installation processing, so that two buckle main blocks are fixed and buckled and arranged in the both ends position of main tank body, after rotating operation to clamping screw, so that clamping screw drives end clamping block and moves to both ends along vertical side groove processing, let the side sealing rubber ring of butt joint sealing plate extrude and be arranged in the side sealing rubber ring of sealing rubber ring, and after sealing rubber ring and sealing top groove seal and fix both ends of main tank body, let its overall sealing be better, after adopting multiple reinforcing connection structure, so that overall is not easy to form dislocation gap after installation, simultaneously under multiple sealing structure, so that sealing is better. BRIEF DESCRIPTION OF DRAWINGS

[0014] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 It is a kind of zero leakage hydraulic cylinder's three-dimensional structure schematic diagram;

[0016] Figure 2 It is a kind of zero leakage hydraulic cylinder's main support plate three-dimensional connection detail structure schematic diagram;

[0017] Figure 3It is a kind of zero leakage hydraulic cylinder's main support plate front view section connection detail structural schematic diagram;

[0018] Figure 4 It is a kind of zero leakage hydraulic cylinder's buckle main block front view section connection detail structural schematic diagram;

[0019] Figure 5 It is a kind of zero leakage hydraulic cylinder's main tank body three-dimensional connection detail structural schematic diagram.

[0020] In the figure: 1, main support plate;2, installation side strip;3, clamping screw;4, installation end slot;5, buckle main block;6, connecting screw;7, connecting pipe body;8, main tank body;9, butt joint sealing plate;10, vertical side slot;11, sealing rubber ring;12, end clamping block;13, mounting screw hole;14, sleeve joint hole;15, installation side block;16, fixed through hole;17, buckling groove;18, sealing rubber ring;19, sealing top slot;20, sleeve joint sealing ring;21, matching plug ring. DETAILED DESCRIPTION

[0021] Please refer to Figure 1 In the embodiment of the utility model, a zero leakage hydraulic cylinder, including main support plate 1, the both sides of main support plate 1 are symmetrically welded with installation side strip 2, the top end of main support plate 1 is vertically inserted with clamping screw 3, the number of installation side strip 2 is two, and two installation side strips 2 are arranged parallel between each other, two installation side strips 2 are symmetrically fixed and arranged at the side edge position of main support plate 1, clamping screw 3 is vertically inserted and arranged at the inside edge of vertical side slot 10, the top end and the bottom end of main support plate 1 are symmetrically provided with installation end slot 4, one side of main support plate 1 is horizontally butt-jointed with buckle main block 5, installation end slot 4 is symmetrically provided at the top end and the bottom end edge position of main support plate 1, and one end of installation end slot 4 horizontally penetrates the side wall of main support plate 1 and extends to the outside and is open, the number of buckle main block 5 is two, and two buckle main blocks 5 are arranged parallel between each other in superimposed mode, one end of buckle main block 5 is butt-jointed and arranged at the open end of installation end slot 4, connecting screw 6 is vertically inserted between buckle main block 5, connecting pipe body 7 is horizontally inserted between the side edge of buckle main block 5 away from main support plate 1, main tank body 8 is vertically arranged between buckle main block 5, the number of connecting screw 6 is four, and four connecting screws 6 are arranged parallel between each other, both ends of connecting screw 6 are penetrated through the top surface of buckle main block 5 close to the inside of four-corner through hole, and the penetrated end nut is fixedly connected and arranged, connecting pipe body 7 is horizontally inserted and arranged in the side edge through hole of buckle main block 5, and the extension end is in communication with the inside of main tank body 8, and one side of main support plate 1 is butt-jointed with butt joint sealing plate 9;

[0022] Please refer to Figures 2-5The utility model discloses an embodiment of a zero leakage hydraulic cylinder, wherein a vertical side groove 10 is vertically formed on one side edge of a main support plate 1, a sealing rubber ring 11 is fixedly connected to one side edge of a butt joint sealing plate 9, an end clamping block 12 is horizontally welded to one end of the butt joint sealing plate 9, an installation screw hole 13 is formed on the inner side end of an installation end groove 4, a sleeve joint hole 14 is formed on the top surface of the butt joint sealing plate 9, the two ends of a main tank body 8 are correspondingly inserted into the inner side edge of a buckling groove 17, the butt joint sealing plates 9 are arranged in a stacked parallel manner, and one end of the butt joint sealing plate 9 is inserted into the side opening end of the vertical side groove 10, the vertical side groove 10 is vertically formed on the side edge middle line position of the main support plate 1, the sealing rubber ring 11 is fixedly arranged on the opening end edge position of the sleeve joint hole 14, one end of the sealing rubber ring 11 is arranged on the side edge position of a sealing rubber ring 18, one end of the end clamping block 12 is horizontally arranged on the inner side edge of the vertical side groove 10, and the end clamping block 12 is screwedly connected to the outer side edge of a clamping screw rod 3, the sleeve joint hole 14 is sleeved to the outer side of the main tank body 8 close to the two ends, an installation side block 15 is horizontally welded to the side edge of a buckling main block 5, a fixed through hole 16 is symmetrically formed on the top surface of the installation side block 15, a buckling groove 17 is formed on the bottom surface of the buckling main block 5, the sealing rubber ring 18 is fixedly connected to the inner side edge of the buckling groove 17, a sealing top groove 19 is formed on the inner side end of the buckling groove 17, a sleeve joint sealing ring 20 is fixedly connected to the through hole inner side edge of the buckling main block 5, the two ends of the main tank body 8 are symmetrically fixedly arranged with a matching plug ring 21, the installation side blocks 15 are horizontally and correspondingly connected to the inner side edge of the installation end groove 4, the buckling groove 17 is sleeved to the two end positions of the main tank body 8, the sealing rubber ring 18 is sleeved to the outer side edge of the main tank body 8, and the top end of the matching plug ring 21 is correspondingly inserted into the inner part of the sealing top groove 19.

[0023] The working principle of the utility model is as follows:

[0024] The two ends of the main tank body 8 are inserted into the inner part of the sleeve joint hole 14, then the two buckling main blocks 5 are buckled to the two end positions of the main tank body 8, the two ends of the main tank body 8 are inserted into the inner part of the buckling groove 17, the installation side block 15 is correspondingly connected to the inner part of the installation end groove 4 after the matching plug ring 21 is inserted into the inner part of the sealing top groove 19, the fixed through hole 16 is connected to the opening end of the installation screw hole 13 through bolt fixing and installation, the two buckling main blocks 5 are fixedly buckled to the two end positions of the main tank body 8, the clamping screw rod 3 drives the end clamping block 12 to move to the two ends along the vertical side groove 10 after the clamping screw rod 3 is rotated, the side edge sealing rubber ring 11 of the butt joint sealing plate 9 is extruded and arranged on the side edge sealing rubber ring 18, and the two ends of the main tank body 8 are sealed and fixed by the sealing rubber ring 18 and the sealing top groove 19, so that the overall sealing performance is better.

[0025] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A zero-leakage hydraulic cylinder comprising a main support plate (1), characterized in that, The both side edges of the main support plate (1) are symmetrically welded with installation side strips (2), the top end of the main support plate (1) is vertically inserted with a clamping screw rod (3), the top end and the bottom end of the main support plate (1) are symmetrically provided with installation end grooves (4), the side edge of the main support plate (1) is horizontally butt-jointed with a buckling main block (5), the buckling main block (5) is vertically inserted with a connecting screw rod (6) between the buckling main blocks (5), the buckling main block (5) is horizontally inserted with a connecting pipe body (7) away from the side edge of the main support plate (1), the buckling main block (5) is vertically provided with a main tank body (8) between the buckling main blocks (5), the side edge of the main support plate (1) is butt-jointed with a butt-jointed sealing plate (9), the side edge of the main support plate (1) is vertically provided with a vertical side groove (10), the side edge of the butt-jointed sealing plate (9) is fixedly clamped with a sealing rubber ring (11), one end of the butt-jointed sealing plate (9) is horizontally welded with an end clamping block (12), the inner side end of the installation end groove (4) is provided with an installation screw hole (13), the top surface of the butt-jointed sealing plate (9) is provided with a sleeving hole (14), the side edge of the buckling main block (5) is horizontally welded with an installation side block (15), the top surface of the installation side block (15) is symmetrically provided with a fixed through hole (16), the bottom surface of the buckling main block (5) is provided with a buckling groove (17), the inner side edge of the buckling groove (17) is fixedly clamped with a sealing rubber ring (18), the inner side end of the buckling groove (17) is provided with a sealing top groove (19), the through hole inner side edge of the buckling main block (5) is fixedly clamped with a sleeving sealing ring (20), the both ends of the main tank body (8) are symmetrically fixedly provided with a matched insertion ring (21).

2. A zero-leakage hydraulic cylinder according to claim 1, characterized in that The number of the installation side strips (2) is two, and the two installation side strips (2) are arranged in parallel between each other, and the two installation side strips (2) are symmetrically fixedly arranged at the side edge position of the main support plate (1), and the clamping screw rod (3) is vertically inserted and arranged at the inner side edge of the vertical side groove (10).

3. A zero-leakage hydraulic cylinder according to claim 1, characterized in that, The installation end grooves (4) are symmetrically provided at the top end and the bottom end edge position of the main support plate (1), and one end of the installation end groove (4) horizontally penetrates the side wall of the main support plate (1) and extends to the outside to be open, the number of the buckling main blocks (5) is two, and the two buckling main blocks (5) are arranged in parallel between each other in a superimposed manner, and one end of the buckling main block (5) is butt-jointed and arranged at the open end of the installation end groove (4).

4. A zero leakage hydraulic cylinder according to claim 1, wherein, The number of the connecting screw rods (6) is four, and the four connecting screw rods (6) are arranged in parallel between each other, and the both ends of the connecting screw rod (6) penetrate the top surface of the buckling main block (5) near the inner part of the four-corner through hole, and the penetrating end nut is fixedly connected and arranged, the connecting pipe body (7) is horizontally inserted and arranged in the side hole of the buckling main block (5), and the extension end is in communication with the inside of the main tank body (8).

5. A zero leakage hydraulic cylinder according to claim 1, wherein, Two ends of the main tank body (8) are correspondingly inserted and arranged in the inner side of the buckle groove (17), the butt joint sealing plates (9) are arranged in parallel and superposed with each other, one end of the butt joint sealing plate (9) is arranged in the side opening end of the vertical side groove (10), the vertical side groove (10) is vertically arranged in the middle line position of the side edge of the main support plate (1), the sealing rubber ring (11) is fixedly arranged in the opening end edge position of the sleeve hole (14), one end of the sealing rubber ring (11) is arranged in the side edge position of the sealing rubber ring (18), one end of the end clamping block (12) is horizontally clamped and arranged in the inner side of the vertical side groove (10), the end clamping block (12) is screwedly connected to the outer side of the clamping screw rod (3), and the sleeve hole (14) is sleeved and arranged in the outer side of the main tank body (8) close to the two ends.

6. A zero leakage hydraulic cylinder according to claim 1, wherein, The mounting side block (15) is horizontally and correspondingly clamped and arranged in the inner side of the mounting end groove (4), the buckle groove (17) is sleeved and arranged in the two end positions of the main tank body (8), the sealing rubber ring (18) is sleeved and arranged in the outer side of the main tank body (8), and the top end of the matched plug ring (21) is correspondingly inserted and arranged in the inner part of the sealing top groove (19).

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