Rear cover structure of hydraulic oil cylinder

Abstract

The rear cover structure of the hydraulic oil cylinder relates to the technical field of hydraulic oil cylinders, and comprises a fixing seat, side clamping grooves are formed in the two sides of the fixing seat, threaded holes are formed in one sides of the side clamping grooves, side clamping blocks are connected into the two side clamping grooves in a clamped mode, second assembly holes are formed in the side clamping blocks, and first assembly holes are formed in the second assembly holes. A second assembling hole is formed in the side clamping block, a threaded hole is formed in the side clamping block, a screw is installed between the second assembling hole and the threaded hole, an extension plate is fixedly connected to one side of the side clamping block, a connecting base is fixedly connected to one end of the extension plate, and the connecting bases of different shapes are selected for use according to the installation environment of the hydraulic oil cylinder. One side of the fixing seat is overhead, so that the side edge of the fixing seat is not shielded, during production, the oil through hole is directly formed in a penetrating mode, finish machining is carried out, production is simple, the side edge is provided with the side clamping groove, the difficulty is low, production is simple, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a rear cover structure of a hydraulic oil cylinder. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, producing linear reciprocating (or oscillating) motion. It features a simple structure and reliable operation. Using it to achieve reciprocating motion eliminates the need for a reduction gear, eliminates transmission backlash, and provides smooth motion. Therefore, it is widely used in hydraulic systems of various machines.

[0003] In the prior art, for example, Chinese patent CN214063454U discloses a hydraulic cylinder rear cover, comprising an end cover and a spherical bearing. The end face of the end cover that cooperates with the hydraulic cylinder barrel is a right-angled quadrilateral, a ring convex is provided in the middle of the end face, and an oil return hole is provided in the end face located inside the ring convex. Two first oil inlet and outlet holes are provided on the first side wall of the end cover near the oil return hole, two second oil inlet and outlet holes are provided on the second side wall of the end cover opposite to the first side wall, and a third oil inlet and outlet hole is provided on the third side wall adjacent to the first side wall and the second side wall. The first oil inlet and outlet hole is connected to the opposite second oil inlet and outlet hole, the two first oil inlet and outlet holes are connected, and the two third oil inlet and outlet holes are connected to the connected first oil inlet and outlet hole and the second oil inlet and outlet hole.

[0004] However, in the prior art, connecting ears need to be installed on the rear cover of the hydraulic cylinder for use, and a connecting port needs to be provided for the circulation of hydraulic oil and for controlling the extension and retraction of the hydraulic cylinder. The connecting port is mostly provided on the side. In actual production, the processing of the internal oil pipeline is relatively difficult, and multiple clamping and finishing processes are required, which makes production difficult. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the rear cover of the hydraulic oil cylinder needs to be installed with connecting ears for use, and a connecting port needs to be provided for the circulation of hydraulic oil and the control of the extension and contraction of the hydraulic oil cylinder. The connecting port is mostly provided on the side. In actual production, it is difficult to process the internal oil pipeline and multiple clamping and finishing processes are required, which makes the production difficult. A rear cover structure of a hydraulic oil cylinder is proposed.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a rear cover structure of a hydraulic cylinder, including a fixing seat, side slots are provided on both sides of the fixing seat, a threaded hole is provided on one side of the side slots, side clamping blocks are clamped inside the two side slots, a No. 2 assembly hole is provided inside the side clamping block, a screw is installed between the No. 2 assembly hole and the threaded hole, one side of the side clamping block is fixedly connected to an extension plate, one end of the extension plate is fixedly connected to a connecting seat, the middle part of one side of the fixing seat is fixedly connected to a connecting base, an oil hole is provided through the middle part of one side of the connecting base, a connecting port is fixedly connected to the middle part of the other side of the fixing seat, the connecting port is communicated with the oil hole, and connecting seats of different shapes are selected for use according to the installation environment of the hydraulic cylinder.

[0007] Preferably, four corners of the fixing seat are each provided with a No. 1 assembly hole.

[0008] Preferably, one side of the extension plate is fixedly connected to a support plate, and a No. 3 assembly hole is opened on one side of the extension plate, and the No. 3 assembly hole passes through the support plate.

[0009] Preferably, a fastening bolt is installed between the two No. 3 assembly holes, and the side of the support plate close to the connection port is designed to be arc-shaped.

[0010] Preferably, one side of the side clamping block is fixedly connected to an extrusion ring, and both ends of the extrusion ring are fixedly connected to connecting ears.

[0011] Preferably, a sealing ring is provided between the two extrusion rings.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the present invention, one side of the fixing seat is suspended by the arrangement of the extension plate and the side clamping block, so that the side of the fixing seat is unobstructed. During production, an oil hole can be directly penetrated and fine-processed, which makes production simpler. In addition, the side clamping groove is arranged on the side with low difficulty, making production simpler and reducing production costs.

[0014] 2. In the present invention, the two extension plates are supported by the setting of the support plate to ensure stability in use. The gap between the support plate and the connection port is used to install the pipeline. The arc surface of the support plate can avoid wear on the pipeline. The outer wall of the hydraulic cylinder is further clamped and sealed by the setting of the sealing ring and the extrusion ring. At the same time, the extrusion ring is used to increase the connection area, thereby ensuring the strength of the hydraulic cylinder after installation and ensuring stability in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a three-dimensional structural diagram of a rear cover structure of a hydraulic cylinder proposed in the utility model;

[0016] Figure 2 The utility model provides an exploded view of the rear cover structure of a hydraulic cylinder;

[0017] Figure 3 The utility model provides a three-dimensional structural schematic diagram of a fixing seat in a rear cover structure of a hydraulic oil cylinder.

[0018] Legend: 1. Fixing seat; 2. Connecting base; 3. Oil hole; 4. Assembly hole No. 1; 5. Connecting seat; 6. Support plate; 7. Sealing ring; 8. Extrusion ring; 9. Connecting ear; 10. Side clamp; 11. Assembly hole No. 2; 12. Screw; 13. Assembly hole No. 3; 14. Extension plate; 15. Side clamping slot; 16. Threaded hole; 17. Connection port; 18. Fastening bolt. DETAILED DESCRIPTION

[0019] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: Figure 1 - Figure 3 As shown, the utility model provides a rear cover structure of a hydraulic cylinder, including a fixing seat 1, side slots 15 are provided on both sides of the fixing seat 1, and a threaded hole 16 is provided on one side of the side slots 15. Side clamping blocks 10 are clamped inside the two side slots 15, and a No. 2 assembly hole 11 is provided inside the side clamping block 10. A screw 12 is installed between the No. 2 assembly hole 11 and the threaded hole 16. An extension plate 14 is fixedly connected to one side of the side clamping block 10, and one end of the extension plate 14 is fixedly connected to a connecting seat 5. A connecting base 2 is fixedly connected to the middle part of one side of the fixing seat 1, and an oil through hole 3 is provided through the middle part of one side of the connecting base 2. A connecting port 17 is fixedly connected to the middle part of the other side of the fixing seat 1, and the connecting port 17 is communicated with the oil through hole 3. Connecting seats 5 of different shapes are selected for use according to the installation environment of the hydraulic cylinder.

[0022] The following is a detailed description of the specific settings and functions of this embodiment. By setting the extension plate 14 and the side clamp block 10, one side of the fixing seat 1 is suspended, so that the side of the fixing seat 1 is unobstructed. During production, the oil hole 3 is directly penetrated and fine processing is performed. The production is relatively simple, and the side clamp groove 15 is set on the side, which is less difficult, making production simpler and reducing production costs.

[0023] Example 2: Figure 1 - Figure 3 As shown, the four corners of the fixing seat 1 are penetrated by a No. 1 assembly hole 4, one side of the extension plate 14 is fixedly connected to the support plate 6, and a No. 3 assembly hole 13 is provided on one side of the extension plate 14. The No. 3 assembly hole 13 penetrates the support plate 6, and a fastening bolt 18 is installed between the two No. 3 assembly holes 13. The side of the support plate 6 close to the connection port 17 is an arc-shaped design, and an extrusion ring 8 is fixedly connected to one side of the side clamping block 10. Both ends of the extrusion ring 8 are fixedly connected to connecting ears 9, and a sealing ring 7 is provided between the two extrusion rings 8.

[0024] The effect achieved by the entire embodiment is that, through the setting of the support plate 6, the two extension plates 14 are supported to ensure stability in use. The gap between the support plate 6 and the connecting port 17 is used to install the pipeline. The arc surface of the support plate 6 can avoid wear on the pipeline. Through the setting of the sealing ring 7 and the extrusion ring 8, the outer wall of the hydraulic cylinder is further clamped and sealed. At the same time, with the cooperation of the extrusion ring 8, the connection area is increased, thereby ensuring the strength of the hydraulic cylinder after installation and ensuring stability in use.

[0025] The usage and working principle of this device: During installation, according to the installation environment of the hydraulic cylinder, rotate or directly fix it, select the corresponding shape of the connecting seat 5 for installation, first install the hydraulic cylinder body, and install the sealing ring 7 on the body, cover the gap between the body and the fixing seat 1, install the oil supply pipe and the connecting port 17, and then clamp the side clamp block 10 in the side clamp groove 15, use the screw 12 to fix the side clamp block 10 and the fixing seat 1, and then use the fastening bolt 18 to install it with the No. 3 assembly hole 13, use the matching bolts to install between the two connecting ears 9, and use the two extrusion rings 8 to fasten the sealing ring 7 in the gap between the body and the fixing seat 1 to enhance the sealing effect, thereby completing the installation of this device.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A rear cover structure of a hydraulic cylinder, comprising a fixing seat (1), characterized in that: Side slots (15) are provided on both sides of the fixing seat (1), and a threaded hole (16) is provided on one side of the side slots (15). Side blocks (10) are clamped inside the two side slots (15), and a No. 2 assembly hole (11) is provided inside the side block (10). A screw (12) is installed between the No. 2 assembly hole (11) and the threaded hole (16). An extension plate (14) is fixedly connected to one side of the side block (10), and one end of the extension plate (14) is fixedly connected to the connecting seat (5). A connecting base (2) is fixedly connected to the middle of one side of the fixing seat (1), and an oil hole (3) is provided through the middle of one side of the connecting base (2). A connecting port (17) is fixedly connected to the middle of the other side of the fixing seat (1), and the connecting port (17) is communicated with the oil hole (3).

2. The rear cover structure of a hydraulic cylinder according to claim 1, characterized in that: Four corners of the fixing seat (1) are all provided with a No. 1 assembly hole (4).

3. The rear cover structure of a hydraulic cylinder according to claim 1, characterized in that: One side of the extension plate (14) is fixedly connected to the support plate (6), and a No. 3 assembly hole (13) is opened on one side of the extension plate (14), and the No. 3 assembly hole (13) passes through the support plate (6).

4. The rear cover structure of a hydraulic cylinder according to claim 3, characterized in that: A fastening bolt (18) is installed between the two No. 3 assembly holes (13), and the side of the support plate (6) close to the connection port (17) is designed to be arc-shaped.

5. The rear cover structure of a hydraulic cylinder according to claim 1, characterized in that: One side of the side clamping block (10) is fixedly connected to an extrusion ring (8), and both ends of the extrusion ring (8) are fixedly connected to connection ears (9).

6. The rear cover structure of a hydraulic cylinder according to claim 5, characterized in that: A sealing ring (7) is provided between the two extrusion rings (8).

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