Hydraulic jack reversing valve

Abstract

The utility model relates to the technical field of reversing valves, in particular to a hydraulic jack reversing valve which comprises a reversing valve body, fixing structures are arranged on the left side and the right side of the reversing valve body respectively, the reversing valve body is connected to a coil rod located in the reversing valve body through the fixing structures, and the other side of the coil rod is connected to the interior of the reversing valve body in a penetrating mode. Bearing seats are fixedly connected to the bottoms of the fixing structures located on the left side and the right side, springs are connected to the positions, located at the outer ends of the left side and the right side of the coil rod, in the reversing valve body through spring seats, a valve element is further arranged at the position, close to the middle, of the outer side of the coil rod, and a plug assembly is fixedly installed at the top of the reversing valve body; when the coil rod is disassembled and maintained, a screw connected with the first fixing plate and the bearing seat is firstly disassembled, then the upper fixing seat and the lower fixing seat are separated under the rotation of the rotating shaft body, so that the coil rod is separated, then the coil rod is conveniently separated from and disassembled from the reversing valve body, and convenience is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reversing valve technical field, concretely is a kind of hydraulic jack reversing valve. BACKGROUND

[0002] Reversing valve is the direction control valve with two or more flow forms and two or more oil ports.It is the valve that realizes the communication, cut-off and reversing of hydraulic oil flow, and pressure unloading and sequential action control.It is the direction control valve by the relative movement of valve core and valve body.There are two kinds of rotary valve and slide valve.According to the number of working positions of valve core in valve body, it is divided into two-position, three-position, etc.According to the number of oil circuit connected with valve body, it is divided into two-way, three-way, four-way and six-way, etc.The operation valve core movement mode has hand, machine, electric, hydraulic, electric-hydraulic, etc.

[0003] Among them, reversing valve is also needed on hydraulic jack, it is usually installed in the oil circuit system of hydraulic jack, plays the role of controlling the flow direction of hydraulic oil, thereby controlling the lifting action of jack.Usually, reversing valve is installed on electric hydraulic pump station, for controlling the jacking and landing of single-acting and double-acting hydraulic jack.

[0004] And the existing reversing valve for hydraulic jack still has the following deficiencies in daily use: 1.it is usually necessary to disassemble the whole shell of reversing valve when coil rod is disassembled and repaired, which is more troublesome;2.reversing valve will vibrate when working, and these vibrations may cause damage to the internal elements of electromagnetic reversing valve, reducing the service life of electromagnetic reversing valve.

[0005] Therefore, it is necessary to design a kind of hydraulic jack reversing valve to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of hydraulic jack reversing valve to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of hydraulic jack reversing valve, including reversing valve body, the left and right sides of the reversing valve body are respectively provided with fixed structure, and are connected to the coil rod in its interior by the fixed structure, another side of the coil rod is connected to the interior of reversing valve body in penetration, the bottom fixed connection of the fixed structure at left and right sides is loaded seat, the interior of the reversing valve body and the left and right sides outer end of coil rod are connected by spring seat with spring, the outer side of the coil rod is also provided with valve core in the middle position, the top of the reversing valve body is fixedly installed with plug assembly.

[0009] As the preferred scheme of the utility model, the fixed structure includes upper fixed seat and lower fixed seat, and one side of the upper fixed seat and the lower fixed seat rotates through rotating shaft body, and the other side is fixed and installed on the bearing seat through the first fixed plate by bolt.

[0010] As the preferred scheme of the utility model, the upper fixed seat and the lower fixed seat are sleeved and fixed outside the coil rod.

[0011] As the preferred scheme of the utility model, the lower fixed seat is further fixedly connected with the second fixed plate below the side away from the first fixed plate, and is fixed and installed on the bearing seat through the second fixed plate by bolt.

[0012] As the preferred scheme of the utility model, the reversing valve body is fixedly connected with the abutting seat on the two sides of the middle position, and the bottom of the abutting seat is provided with the damping seat.

[0013] As the preferred scheme of the utility model, a plurality of damping components are arranged between the bottom of the abutting seat and the top of the damping seat, and the damping component adopts a damping shock absorber.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. In the utility model, when the coil rod is disassembled and maintained, the screw connected with the first fixed plate and the bearing seat is first disassembled, then the upper fixed seat and the lower fixed seat are separated under the rotation of the rotating shaft body, so that the coil rod is separated, and then the coil rod is disassembled from the reversing valve body, which is more convenient.

[0016] 2. In the utility model, when the reversing valve works, the damping shock absorber is used to reduce vibration, so that the vibration is not transmitted to the hydraulic jack to cause vibration and noise of the hydraulic jack, and the overall stability is improved. DRAWINGS

[0017] Figure 1 It is the overall three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is the three-dimensional structure schematic view of the utility model after being partially disassembled;

[0019] Figure 3 It is the three-dimensional structure schematic view of the utility model after the fixed structure and the bearing seat are separated;

[0020] Figure 4 It is the internal partial structure schematic view of the reversing valve body of the utility model;

[0021] Figure 5 Figure is three-dimensional structure schematic diagram of the damping seat and the reversing valve body separated according to the utility model;

[0022] In the figure: 1, reversing valve body; 2, fixed structure; 21, upper fixed seat; 22, lower fixed seat; 23, rotating shaft body; 24, first fixed plate; 25, second fixed plate; 3, coil rod; 4, bearing seat; 5, spring seat; 6, spring; 7, valve core; 8, plug assembly; 9, abutting seat; 10, damping seat; 11, damping assembly. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described below in conjunction with the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0024] In order to facilitate understanding of the utility model, the utility model will be more fully described below with reference to the relevant drawings. Several embodiments of the utility model are given. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or an intervening element can be present. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for purposes of description only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0027] Embodiments, please see Figures 1-5 The utility model provides a technical scheme:

[0028] The utility model provides a hydraulic jack reversing valve, including reversing valve body 1, the left and right sides of reversing valve body 1 are provided with fixed structure 2 respectively, and are connected to the coil rod 3 in its inside through the fixed structure 2, the other side of coil rod 3 is connected to the inside of reversing valve body 1, and the bottom fixed connection of the left and right sides fixed structure 2 is provided with the bearing seat 4, the inside of reversing valve body 1 and the left and right sides outer end of coil rod 3 are connected with spring 6 through spring seat 5, the outside of coil rod 3 is still provided with valve core 7 in the middle position, and the top of reversing valve body 1 is fixedly installed with plug assembly 8.

[0029] Specifically, the fixed structure 2 includes an upper fixed seat 21 and a lower fixed seat 22, and one side of the upper fixed seat 21 and the lower fixed seat 22 is rotated through a rotating shaft body 23, and the other side is fixedly installed on the bearing seat 4 through a first fixed plate 24 by means of bolts; the upper fixed seat 21 and the lower fixed seat 22 are sleeved and fixed on the outside of the coil rod 3; during installation, the first fixed plate 24 is attached to the bearing seat 4 through the rotating action of the rotating shaft body 23, and then it can be fixedly installed by means of bolts; when disassembling, the bolts are removed, and then the first fixed plate 24 is reversely rotated, so that the upper fixed seat 21 and the lower fixed seat 22 are separated, thereby separating from the coil rod 3, and the coil rod 3 is convenient to disassemble.

[0030] Wherein, the lower fixed seat 22 is further fixedly connected with a second fixed plate 25 below the side away from the first fixed plate 24, and the second fixed plate 25 is fixedly installed on the bearing seat 4 by means of bolts; so as to install the fixed structure 2 on the bearing seat 4 as a whole.

[0031] Specifically, the middle position of the reversing valve body 1 is fixedly connected with a contact seat 9 on the front and back sides, and the bottom of the contact seat 9 is provided with a damping seat 10; a plurality of damping assemblies 11 are arranged between the bottom of the contact seat 9 and the top of the damping seat 10, and the damping assemblies 11 adopt damping shock absorbers; during vibration of the reversing valve body 1, the damping shock absorbers in the damping assemblies 11 are used to reduce vibration, so as to avoid transmission of vibration to the hydraulic jack, thereby avoiding vibration and noise of the hydraulic jack, and improving overall stability.

[0032] The working process of the utility model is as follows: when the hydraulic jack reversing valve is used, during installation, the first fixed plate 24 is attached to the bearing seat 4 through the rotating action of the rotating shaft body 23, and then it can be fixedly installed by means of bolts; when disassembling, the bolts are removed, and then the first fixed plate 24 is reversely rotated, so that the upper fixed seat 21 and the lower fixed seat 22 are separated, thereby separating from the coil rod 3, and the coil rod 3 is convenient to disassemble; during vibration of the reversing valve body 1 during work, the damping shock absorbers in the damping assemblies 11 are used to reduce vibration, so as to avoid transmission of vibration to the hydraulic jack, thereby avoiding vibration and noise of the hydraulic jack, and improving overall stability.

[0033] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic jack directional valve, comprising a directional valve body (1), characterized in that: The left and right sides of the reversing valve body (1) are respectively provided with fixing structures (2), and the coil rod (3) located inside the fixing structure (2) is connected through the fixing structure (2). The other side of the coil rod (3) is connected through to the interior of the reversing valve body (1). The bottom of the fixing structure (2) located on the left and right sides is fixedly connected with a bearing seat (4). The interior of the reversing valve body (1) and the outer ends of the coil rod (3) on the left and right sides are connected with springs (6) through spring seats (5). A valve core (7) is also provided on the outer side of the coil rod (3) near the middle position. A plug assembly (8) is fixedly installed on the top of the reversing valve body (1).

2. The hydraulic jack reversing valve according to claim 1, characterized in that: The fixed structure (2) includes an upper fixed seat (21) and a lower fixed seat (22). One side of the upper fixed seat (21) and the lower fixed seat (22) rotates through a rotating shaft (23), and the other side is fixedly installed on the bearing seat (4) by bolts through a first fixed plate (24).

3. A hydraulic jack directional valve according to claim 2, characterized in that: The upper fixing seat (21) and the lower fixing seat (22) are sleeved and fixed on the outside of the coil rod (3).

4. A hydraulic jack directional valve according to claim 2, characterized in that: The lower fixing seat (22) is further fixedly connected to a second fixing plate (25) on the side away from the first fixing plate (24), and is fixedly installed on the bearing seat (4) by bolts through the second fixing plate (25).

5. A hydraulic jack directional valve according to claim 1, characterized in that: The reversing valve body (1) has a contact seat (9) fixedly connected to the front and rear sides at the middle position, and a shock-absorbing seat (10) is provided at the bottom of the contact seat (9).

6. A hydraulic jack directional valve according to claim 5, characterized in that: A plurality of damping components (11) are provided between the bottom of the abutment seat (9) and the top of the damping seat (10), and the damping components (11) are damping dampers.

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