A lock mode oil cylinder assembly

Abstract

The application relates to the field of oil cylinders, in particular to a mold locking oil cylinder assembly, wherein the mold locking oil cylinder assembly comprises a first connecting cover, a second connecting cover, a shell and a piston assembly; the first connecting cover and the second connecting cover are oppositely arranged and are spaced apart by a predetermined distance; two ends of the shell are fixedly connected with the sides of the first connecting cover and the second connecting cover which are close to each other; one end of the piston assembly is movably arranged in the shell, and the other end of the piston assembly penetrates through the second connecting cover and is arranged outside; the piston assembly comprises a piston head and a piston rod; the piston rod is a hollow rod; one end of the piston head is inserted into the piston rod, and the other end of the piston head directly abuts against the end of the piston rod. The mold locking oil cylinder assembly has the advantages of convenient use, hollow structure of the piston rod and simple structure.

Description

Technical Field

[0001] This application relates to the field of hydraulic cylinders, and more specifically to a mold-locking hydraulic cylinder assembly. Background Technology

[0002] The existing mold-locking cylinder includes a piston rod, and the piston rod is a solid piston rod, as detailed in the following example. Figure 4 As shown, solid piston rods require significant hydraulic pressure to move in practical applications, which can easily cause the seals inside the cylinder to crack, necessitating frequent seal replacements and causing considerable inconvenience. Therefore, there is a need for a mold-locking cylinder assembly that is easy to use, has a hollow piston rod structure, and is simple in design. Utility Model Content

[0003] The main objective of this application is to provide a mold-locking cylinder assembly, wherein the mold-locking cylinder assembly can effectively utilize its own structural configuration to achieve the advantages of a hollow piston rod structure and simple structure.

[0004] Another objective of this application is to provide a mold-locking cylinder assembly, wherein the mold-locking cylinder assembly includes a first connecting cover; a second connecting cover, the first connecting cover and the second connecting cover being disposed opposite to each other and spaced apart by a predetermined distance; a housing, both ends of the housing being fixedly connected to the sides of the first connecting cover and the second connecting cover that are close to each other; and a piston assembly, one end of the piston assembly being movably disposed within the housing, and the other end passing through the second connecting cover and being disposed outside, wherein the piston assembly includes a piston head and a piston rod, the piston rod being a hollow rod, one end of the piston head being inserted into the piston rod, and the other end directly abutting against the end of the piston rod, wherein the hollow structure of the piston rod can effectively reduce the overall weight of the piston assembly, so that the oil can drive the piston assembly to move, thereby avoiding excessive pressure in the first oil inlet channel or the second oil inlet channel, which could lead to the rupture of the sealing ring.

[0005] Another objective of this application is to provide a mold-locking cylinder assembly, wherein the mold-locking cylinder assembly has a simple structure, is easy to operate, does not involve complex manufacturing processes and expensive materials, has high economic efficiency, and is easy to promote and use.

[0006] To achieve at least one of the above-mentioned objectives, this application provides a mold-locking cylinder assembly, wherein the mold-locking cylinder assembly includes:

[0007] First connecting cover;

[0008] A second connecting cover, wherein the first connecting cover and the second connecting cover are disposed opposite to each other and spaced apart by a predetermined distance;

[0009] A housing, the two ends of which are respectively fixedly connected to the sides of the first connecting cover and the second connecting cover that are close to each other; and

[0010] A piston assembly, one end of which is movably disposed within the housing, and the other end passing through the second connecting cover and positioned externally, wherein the piston assembly includes a piston head and a piston rod, the piston rod being a hollow rod, one end of the piston head being inserted into the piston rod, and the other end directly abutting against the end of the piston rod.

[0011] In one or more embodiments of this application, the first connecting cover has a first insertion portion and a first connecting portion, the first insertion portion and the first connecting portion being integrally formed. Additionally, the second connecting cover has a second insertion portion and a second connecting portion, the second insertion portion and the second connecting portion being integrally formed.

[0012] In one or more embodiments of this application, the outer wall of the first connecting part has a first communicating hole, the bottom of the first insertion part has a second communicating hole, the first communicating hole and the second communicating hole together form a first oil inlet channel, and the second connecting part has a second oil inlet channel. The housing has a cavity with both ends connected, and the first oil inlet channel and the second oil inlet channel are both connected to the cavity.

[0013] In one or more embodiments of this application, the first connecting cover further has a third oil inlet channel, which sequentially passes through the first insertion part and the first connecting part, and communicates with the cavity.

[0014] In one or more embodiments of this application, the second connecting cover further has a third communicating hole, which passes through the second connecting cover in sequence.

[0015] In one or more embodiments of this application, one end of the piston head abuts against the end of the first insertion part and blocks the third oil inlet channel, the end of the piston rod away from the piston head passes through the third connecting hole and is placed outside, and the size of the third connecting hole is larger than the size of the piston rod.

[0016] In one or more embodiments of this application, the inner wall of the third connecting hole is further provided with at least two second sealing rings, and the second oil inlet channel is located above the second sealing rings. Attached Figure Description

[0017] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0018] Figure 1The figure shows a schematic diagram of a mold-locking cylinder assembly.

[0019] Figure 2 The figure shows an axial sectional view of a mold-locking cylinder assembly.

[0020] Figure 3 The diagram shows... Figure 2 A magnified view of A in the middle.

[0021] Figure 4 The diagram illustrates the structure of an existing piston rod. Detailed Implementation

[0022] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0023] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0024] While ordinal numbers such as "first," "second," etc., will be used to describe various components, there is no limitation on which components are used herein. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the utility model concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0026] refer to Figures 1 to 3 According to a preferred embodiment of the present invention, the mold-locking cylinder assembly is characterized by the following structure: Figure 1As shown, the mold-locking cylinder assembly includes a first connecting cover 10 and a second connecting cover 20, which are disposed opposite to each other and spaced apart by a predetermined distance. Specifically, the first connecting cover 10 has a first insertion portion and a first connecting portion, the first insertion portion and the first connecting portion being integrally formed. The second connecting cover 20 has a second insertion portion and a second connecting portion, the second insertion portion and the second connecting portion being integrally formed.

[0027] It is worth mentioning that the outer wall of the first connecting part has a first communicating hole, and the bottom of the first insertion part has a second communicating hole. The first communicating hole and the second communicating hole together form a first oil inlet channel 100. Additionally, the second connecting part has a second oil inlet channel 200. Furthermore, it should be noted that the mold-locking cylinder assembly also includes a housing 40, which has a cavity with two connected ends. Both the first oil inlet channel 100 and the second oil inlet channel 200 are connected to the cavity, i.e., as shown... Figure 2 As shown, the first oil inlet channel 100 is located on the upper side of the cavity, and the second oil inlet channel 200 is located on the lower side of the cavity. It is worth noting that both ends of the housing 40 are fixedly connected to the first connecting portion and the second connecting portion, respectively, to define the positions of the first connecting portion and the second connecting portion. That is, the connection method between the housing 40 and the first connecting portion is the same as the connection method between the housing 40 and the second connecting portion, both using bolts for fixing.

[0028] It is worth mentioning that the first connecting cover 10 also has a third oil inlet channel 300, which sequentially passes through the first insertion part and the first connecting part and communicates with the cavity. In addition, the second connecting cover 20 also has a third connecting hole, which sequentially passes through the second connecting cover 20. Specifically, the mold clamping cylinder assembly also includes a piston assembly 30, one end of which abuts against the end of the first insertion part and blocks the third oil inlet channel 300, and the other end passes through the third connecting hole and is placed outside. The piston assembly 30 is configured to move up and down within the cavity.

[0029] Specifically, the piston assembly 30 includes a piston head 31 and a piston rod 32. The piston rod 32 is a hollow rod. One end of the piston head 31 is inserted into the piston rod 32, and the other end directly abuts against the end of the piston rod 32. The connection between the piston head 31 and the piston rod 32 can be an interference fit. To ensure oil sealing, at least two first sealing rings are fitted on the outer wall of the piston head 31 inserted into the piston rod 32 to prevent oil from being squeezed into the interior of the piston rod 32. It should be noted that one end of the piston head 31 abuts against the end of the first insertion portion and blocks the third oil inlet channel 300. The end of the piston rod 32 opposite to the piston head 31 passes through the third connecting hole and is positioned externally.

[0030] It is worth mentioning that the inner wall of the third connecting hole is also provided with at least two second sealing rings, and the second oil inlet channel 200 is located above the second sealing rings. That is, oil enters from the second oil inlet channel 200 and is guided to the piston head 31, so that the piston head 31 moves closer to the first oil inlet channel 100. It should be noted that when the piston head 31 moves downward, external oil enters from the aforementioned third oil inlet channel 300 to replenish the oil pipe section. Conversely, if the piston head 31 moves upward, the oil in the oil cylinder is discharged. Specifically, the size of the third connecting hole is larger than the size of the piston rod 32 to facilitate the movement of the piston rod 32 at the third connecting hole. Conversely, when oil enters from the second oil inlet channel 200, the oil will squeeze the top of the piston head 31 to push the piston head 31 toward the second oil inlet channel 200. It should also be noted that the outer wall of the piston head 31 is also provided with at least two third sealing rings to prevent oil above the piston head 31 from flowing into the second oil inlet channel 200. The structural advantage of the piston rod 32 is that it can effectively reduce the overall weight of the piston assembly 30, so that the oil can drive the piston assembly 30 to move, thereby avoiding excessive pressure in the first oil inlet channel 100 or the second oil inlet channel 200, which could lead to the rupture of the sealing ring.

[0031] In summary, the mold-locking cylinder assembly described in the embodiments of this application is explained, which provides advantages such as ease of use, hollow piston rod structure, and simple structure.

[0032] It is worth mentioning that, in this embodiment, the mold-locking cylinder assembly has a simple structure, does not involve complex manufacturing processes or expensive materials, and is highly economical. At the same time, for manufacturers, the mold-locking cylinder assembly provided in this application is easy to produce and inexpensive, which is more conducive to controlling production costs and further facilitates product promotion and use.

[0033] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments, and any modifications or variations may be made to the implementation of the present invention without departing from these principles.

Claims

1. A mold-locking cylinder assembly, characterized in that, The mold-locking cylinder assembly includes: First connecting cover; A second connecting cover, wherein the first connecting cover and the second connecting cover are disposed opposite to each other and spaced apart by a predetermined distance; A housing, the two ends of which are respectively fixedly connected to the sides of the first connecting cover and the second connecting cover that are close to each other; and A piston assembly, one end of which is movably disposed within the housing, and the other end passing through the second connecting cover and positioned externally, wherein the piston assembly includes a piston head and a piston rod, the piston rod being a hollow rod, one end of the piston head being inserted into the piston rod, and the other end directly abutting against the end of the piston rod.

2. The mold-locking cylinder assembly according to claim 1, wherein the first connecting cover has a first insertion portion and a first connecting portion, the first insertion portion being integrally formed with the first connecting portion, and the second connecting cover has a second insertion portion and a second connecting portion, the second insertion portion being integrally formed with the second connecting portion.

3. The mold-locking cylinder assembly according to claim 2, wherein the outer wall of the first connecting part has a first communicating hole, the bottom of the first insertion part has a second communicating hole, the first communicating hole and the second communicating hole together form a first oil inlet channel, and the second connecting part has a second oil inlet channel, the housing has a cavity with both ends connected, and the first oil inlet channel and the second oil inlet channel are both connected to the cavity.

4. The mold-locking cylinder assembly according to claim 2, wherein the first connecting cover further has a third oil inlet channel, the third oil inlet channel passing through the first insertion part and the first connecting part in sequence, and communicating with the cavity.

5. The mold-locking cylinder assembly according to claim 4, wherein the second connecting cover further has a third communicating hole, the third communicating hole passing through the second connecting cover in sequence.

6. The mold-locking cylinder assembly according to claim 5, wherein one end of the piston head abuts against the end of the first insertion portion and blocks the third oil inlet channel, the end of the piston rod away from the piston head passes through the third connecting hole and is placed outside, and the size of the third connecting hole is larger than the size of the piston rod.

7. The mold-locking cylinder assembly according to claim 5, wherein the inner wall of the third connecting hole is further provided with at least two second sealing rings, and the second oil inlet channel is located above the second sealing rings.

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